Linear motor based on radial magnetic tubes

Abstract

A liner motor based on radical magnetic tubes includes: a dynamicer (mover, QDZ) and a stator (STA), the structure of the stator (STA) is: a stator magnetic tube (SCG) is nested into the inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer can travel in the stator tube; the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; the sliders (HDZ) are installed on both ends of the dynamicer main body load.

Claims

1. A magnetic tubes motor, comprising: a dynamicer (also known as a mover, QDZ) and a stator (STA), a length of the stator is far greater than a length of the dynamicer, in principle analysis the stator is regarded as infinitely long, a structure of the stator (STA) is: a stator magnetic tube (SCG) nested into an inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer travels in the stator tube; the dynamicer is composed of a dynamicer main body (QZT) and sliders (HDZ), the dynamicer main body (QZT) comprises: a coil frame (XGJ), a dynamicer iron core (QTX) and a dynamicer coil (QDX); a dynamicer main body (QZT) structure is: the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; after the sliders (HDZ) are installed on both ends of the dynamicer main body, which become dynamicer; a sensor group is installed on the dynamicer and the stator, to obtain some physical quantities, so as to control a size of drive current and voltage, after dynamicer coil is powered on, the current interacts with a stator magnetic field, forms electromagnetic force, and drives dynamicer movement in the stator tube (DZGD), and the dynamicer drives a load by a transmission mechanism; all magnetic tube provide radial magnetic fields, namely, an inner arc is a pole, an outer arc is the another pole.

2. The magnetic tubes motor, as recited in claim 1, wherein the stator magnetic tube (SCG) is of a hard ferromagnetic tile type, which is a one-way radial magnetic field tube, and is composed of many stator magnetic tiles (SCW) joining together in the inner arc of the pure iron tube (DTG), each of the stator magnetic tiles (SCW) provides a radial magnetic field, so the stator magnetic tube (SCG) provides a radial magnetic field too.

3. The magnetic tubes motor, as recited in claim 1, wherein the stator magnetic tube (SCG) is of a hard ferromagnetic tube type, which adopts an integral radial magnetic tube.

4. The magnetic tubes motor, as recited in claim 1, wherein the stator magnetic tube (SCG) is composed of an electromagnet tile type, which is composed of many radial electromagnet tiles (FIG. 1.4) joining together in the inner arc of the pure iron tube (DTG), when the dynamicer runs to a certain position of the stator, the electromagnet tile at the certain position is powered on, to produce a radial magnetic field; when the dynamicer leaves a location, the electromagnet tile at the location is powered off, and the magnetic field disappeared.

5. The magnetic tubes motor, as recited in claim 1, wherein the stator is with a driving slot (QDC), a structure thereof is: the driving slot (QDC) is drilled on the stator (STA) along a tube direction, a driving hook (QDG) of the dynamicer reaches out to outside of the driving slot (QDC) to drag a load, during dynamicer movement in the stator tube (DZGD), driving hook (QDG) drives the load.

6. The magnetic tubes motor, as recited in claim 1, wherein a structure of the dynamicer is: the sliders (HDZ) (FIG. 1.2) are install at both ends of the dynamicer main body (QZT) (FIG. 1.5); a dynamicer main body (QZT) structure is: on an outer of the tubular coil skeleton (XGJ) installed the tubular dynamicer iron core (QTX), then on an outer of the dynamicer iron core (QTX) wound a coil, so as to form the tubular dynamicer coil (QDX), the coil skeleton (XGJ) adding the dynamicer iron core (QTX) adding the dynamicer coil (QDX) is equal to the dynamicer main body (QZT) (FIG. 1.5), the dynamicer iron core is a radial hard ferromagnetic or an electromagnet tubular body, both the dynamicer iron core and the stator magnetic field are consistent in directions, responsible for intercepting negative magnetic lines, and changing magnetic field distribution, so that dynamicer position positive magnetic lines are greater than the negative magnetic lines, so, the dynamicer coil current produces electromagnetic force.

7. The magnetic tubes motor, as recited in claim 1, wherein the dynamicer iron core (QTX) is a hard ferromagnetic dynamicer iron core, there are two kinds: the an integral tube type QTX and the a dynamicer magnetic tile QCW splicing tube type, (so in FIG. 1.5, QTX and QCW point to a same place), in order to avoid eddy current, the dynamicer iron core QTX has insulation in a circumferential direction, ferrite itself is insulated, for a rubidium iron boron iron core, insulation in a joint seam (PJF) or an insulation seam (PJF) is provided; after the both ends of the dynamicer main body (QZT) are installed with the sliders (HDZ), it becomes the dynamicer; after the dynamicer coil (QDX) is electrified and interacts with a magnetic field, an electromagnetic force is form, driving the dynamicer movement in the stator tube (DZGD), the dynamicer drives the load by the transmission mechanism.

8. The magnetic tubes motor, as recited in claim 1, wherein the dynamicer iron core (QTX) is of an electromagnet tile type, which is composed of many radial electromagnet tiles (FIG. 1.4) joining together in the Outer outer arc of the coil skeleton (XGJ).

9. The magnetic tubes motor, as recited in claim 1, wherein a cross section shape of the magnetic tubes motor, and all of the tubular cross section shape are round, oval, rectangle, polygon, and complex shapes; one of the complex shapes is an arch shape (FIG. 2), whose upper half is a semicircle and a lower part is a rectangle.

10. The magnetic tubes motor, as recited in claim 1, wherein an alternating magnetic field arranged type stator magnetic tube is provided, a structure of the stator magnetic tube (SCG) is: the stator magnetic tube (SCG) is composed of many short magnetic tubes in connection, adjacent short magnetic tubes have opposite magnetic field directions (FIG. 4), in order to describe simply, Definitiona definition is: in these short magnetic tubes, an SCGN inner arc as theis an N pole, as a positive direction, and an SCGS inner arc as is the an S pole, as a negative direction, the stator magnetic tube inner arc is provides N-S-N-S alternating direction magnetic field, between the SCGN and the SCGS sandwiched a non-magnetic tube SCGX,i.e., SCGN-SCGX-SCGS-SCGX-SCGN-SCGX-SCGS- . . . alternatealternating, So willso as to form a huge number of magnetic circuits, avoiding the that a net value of positive and negative magnetic flux is equal to zero, wherein the dynamicer iron core QTX is made of a soft ferromagnetic material, or is omitted; when the dynamicer QDZ is in an interval of the positive magnetic tube SCGN, the dynamicer coil QDX bears a positive driving force when being positively electrified and bears a negative driving force when being negatively electrified; conversely, when the dynamicer QDZ is in an interval of the negative magnetic tube SCGN, the dynamicer coil QDX bears a positive driving force when being negatively electrified and bears a negative driving force when being positively electrified; as a result, when the dynamicer QDX moves to an interval where the magnetic field direction changes, an electrifying direction of the dynamicer coil QDX is changed for guaranteeing a unidirectional driving force; when the dynamicer QDZ is in an interval of the non-magnetic tube SCGX, the interval provides no driving force to the dynamicer coil QDX, which is a transition interval for changing a current direction of the dynamicer coil QDX; the current direction is changed by a controller after detecting whether the dynamicer QDZ is at a positive magnetic field interval, a negative magnetic field area or the transition interval.

11. The magnetic tubes motor, as recited in claim 1, wherein a stator structure is: the pure iron tube (DTG) is a sealing tube (FIG. 3), wherein a quasi vacuum tube is designed for running in a high-speed train, the dynamicer is used as a carriage CX after the stator tube is pumped into a quasi vacuum state, which greatly reduce air resistance of dynamicer motion.

12. The magnetic tubes motor, as recited in claim 1, wherein a slider structure is a kind of a wheel-rail type sliding structure, rails (DG, see FIG. 1.3, FIG. 2) are installed in the stator inner arc and embedded in the stator magnetic tube (SCG) but not bulged out over the surface of the stator magnetic tube; the wheels (GL) is installed on a slider body (HDT) for slider (FIG. 2.1), wheels (GL) rotate on the rails (DG), a driving hook (QDG) is fixed on the sliders (HDZ); the rails (DG) have function of power wires and signal wires.

13. The magnetic tubes motor, as recited in claim 1, wherein a slider structure is a maglev (magnetic levitation) structure, a lap of electromagnets or hard ferromagnets is installed in a periphery of a slider body (HDT) (FIG. 3.2), referred to as a maglev magnet (XFC), a magnetic field direction of the maglev magnet (XFC) reverses in a direction of the magnetic field of the stator magnetic tube (SCG), two-magnet repulsion makes the sliders (HDZ) float; the sliders (HDZ) is a combination of the maglev type and a wheel-rail type.

14. The magnetic tubes motor, as recited in claim 1, wherein there are two models of power supply to the coil, one is through the rails (DG) power supply, the other is a cable through the a driving slot (QDC), connecting the a power supply supplier and the dynamicer coil (QDX).

15. The magnetic tubes motor, as recited in claim 1, further comprising: a sensor (CGQ) of the magnetic tube motor, a sensor group CGQ is installed on the dynamicer and the stator, to detect key physical quantities (including velocity, force, position, and magnetic field direction), quantities are obtained to control the size of current and voltage.

16. The magnetic tubes motor, as recited in claim 1, which is a traction type magnetic tube motor (FIG. 5), pulleys called traction pulleys (QYL) are installed at both ends of the stator, and through holes called traction holes (QYK) are drilled at the end iron cores at both ends of the stator; both ends of a traction rope (QYS) respectively pass through the traction holes (QYK) and are connected to both ends of the dynamicer (QDZ), and the dynamicer (QDZ) drives the traction rope (QYS) and a traction hook (QYG) for driving an external load; alternatively, a traction rod is used to replace the traction rope (QYS), wherein a traction hook on the traction rod moves the external load.

17. The magnetic tubes motor, as recited in claim 1, further comprising a cable made up by a pair of traction type magnetic tubes motors (FIG. 6), wherein a pair of traction type magnetic tubes motor traction ropes is connected into one, after the dynamicer is electrified, the cable (ZLS) produces reverse tension on an aircraft (FJ), which produces an aircraft braking force.

18. The magnetic tubes motor, as recited in claim 1, further comprising a structure to keep a driving force constant; wherein the higher speed of the dynamicer (QDZ) is, the larger the counter voltage is provided, the higher source voltage is offseted, the lower driving voltage will be.fwdarw.the lower driving current will be.fwdarw.the lower dynamicer driving force will be; for a load such as an aircraft, the driving force is basically kept constant within a catapult period, wherein for keep the driving voltage constant, the source voltage is increased as the dynamicer speed rises, so as to synchronously counter the dynamicer counter voltage; one of various methods for gradually increasing the source voltage is connecting power units in serious and gradually switching in; a method for gradually switching in the power units is a brush method or a switch method; wherein the brush method is: installing a brush on a driving hook (QDG), and gradually increasing the source electromotive force during brush sliding; wherein the switch method is: during dynamicer moving, sending sensor signals to a control circuit for gradually turning on switches, so as to gradually increase the source electromotive force; and gradually turning off normally closed contacts K1, K2, . . . , Kn-2, Kn-1, Kn of the switches, wherein electromotive forces of the power units are gradually superposed between a power cable positive pole (DL+) and a power cable negative pole (DL−); wherein a first type of the switches is: dynamicer position controlled switches, wherein a row of sensors are arranged beside a dynamicer rail; according to a dynamicer position, the sensor signals are sent to the control circuit for gradually turning on the switches, so as to gradually increase the source electromotive force; wherein a second type of the switches is: dynamicer speed controlled switches, wherein a speed detecting coil is installed on the dynamicer (QDZ), which acts as an individual dynamicer coil with an extreme-slim wire winding along a wire slot of the dynamicer coil (QDX); when the dynamicer speed rises, speed signals from the speed detecting coil strengthen, the speed signals are sent to the control circuit for gradually turning on the switches, so as to gradually increase the source electromotive force; wherein a third type of the switches is: dynamicer driving current controlled switches, wherein a coil is winded at a fixed end of a cable, an iron core is placed at a center of the coil; the iron core is directed to a transmitter based on a Hall element; when a current is lower than a pre-determined value, a magnetic induction intensity is lower than a pre-determined value; the magnetic induction intensity is detected by the transmitter and sent to the control circuit for turning on switches increasing the source electromotive force.

19. The magnetic tubes motor, as recited in claim 1, further comprising a feedback braking structure; wherein for feedback braking, after a load is launched, the dynamicer (QDZ) is braked; specifically, kinetic energy during dynamicer braking is recovered for being electric energy of a power supply; a position sensor is installed at a position where launch is completed, and a motor state is changed into a generator state; after the load is launched, the over (QDZ) still keeps a huge amount of the kinetic energy; when the dynamicer (QDZ) reaches the position where the position sensor is, a magnetic tube motor is changed from the motor state to the generator state, so as to charging the power source with power generated by the kinetic energy of the dynamicer (QDZ).

20. The magnetic tubes motor, as recited in claim 1, wherein a magnetic tube motor for a railgun and primary launch of a rocket; wherein the railgun is formed by the magnetic tube motor (CTDJ) and a shell barrel (PDT), and the magnetic tube motor (CTDJ) drives a shell in the shell barrel (PDT); a direction of the railgun is gradually changed from a horizontal direction to a direction pointing upwards; the railgun is long enough to adapt a large radius of curvature, which is gently curved and is installed on a supporter (PT); for a gunpowder shell, a shell tail is flat for bearing an explosion power, resulting in large friction during flying; the shell of the railgun is catapulted and is streamlined, and friction during flying is much lower than the friction of the shell with the flat shell tail, which increases a firing range; wherein the magnetic tube motor is also suitable for launch of the rocket, which adds a ground launch primary stage.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0032] References have be explained in former figures will listed directly, only explaining new references.

[0033] FIG. 1 is a front view of a radial magnetic tube motor;

[0034] wherein (CTDJ—magnetic cylinder motor, which is not shown in FIG. 1 since FIG. 1 shows CTDJ as a whole; CTDJ is shown in FIGS. 7 and 7.1), STA—stator (the structure of the stator (STA) is: a stator magnetic tube (SCG) nested into the inner wall of a pure iron tube (DTG))); SCG—stator magnetic tube; DKX—break line; QDG—driving hook; WPC-external gap, gap between external wall of dynamicer magnetic tube and internal wall of stator; CGQ—sensor group; DTG—electromagnetism pure iron tube referred to as pure iron tube; DBTX—end iron core; HCQ—buffer; HDZ—slider; XGJ—the coil frame; QTX—dynamicer iron core; QDX—dynamicer coil; QDZ—dynamicer; DZGD—stator tube.

[0035] FIG. 1.1 is a sectional view of the radial magnetic tube motor;

[0036] wherein: PJF—joint seam or cut a insulation seam; QTX; QCW—dynamicer magnetic tile; (QCW,QTX)—dynamicer magnetic tiles (QCW) and dynamicer iron core (QTX), dynamicer iron core (QTX) is composed of many dynamicer magnetic tiles (QCW), so in FIG. 1.5 (QTX) and (QCW) point to the same place); DG—rail; DTG; SCG; (SCW,SCG)—stator magnetic tile (SCW) and stator magnetic tube (SCG),stator magnetic tube (SCG) is composed of many stator magnetic tiles (SCW) in the inner arc of the pure iron tube (DTG) joining together and become, So in FIG. 1.3 (SCW) and (SCG) point to the same place); STA; QDC—driving slot; QDX; XGJ; WJX are shown.

[0037] FIG. 1.2 is a front view of a dynamicer;

[0038] wherein: HDZ; DTG; QDG; STA; QTX; SCG; QDX; XGJ; WJX; CGQ; QDZ are shown.

[0039] FIG. 1.3 is a sectional view of the stator;

[0040] wherein: DG; DTG; (SCW,SCG); STA; QDC; SCG; QDG; QDX; XGJ; WJX are shown.

[0041] FIG. 1.4 is a sectional view of an electromagnet tile;

[0042] wherein: ECW—electromagnet tile, wherein the stator electromagnet tile and the dynamicer electromagnet tile; CWT—electromagnet tile iron core; CWX—electromagnet tile coil.

[0043] FIG. 1.5 is a sectional view of the dynamicer;

[0044] wherein: PJF; (QCW,QTX); QDX; XGJ; QZT—dynamicer main body are shown;

[0045] FIG. 2 is a sectional view of the complex shapes of the stator and the dynamicer main body;

[0046] wherein: PJF; DG; (QCW,QTX); DTG; (SCW,SCG); STA; QDC; QDX; XGJ; WJX are shown.

[0047] FIG. 2.1 is a sectional view of the complex shapes of the stator and the wheel-rail type slider;

[0048] wherein: HDT; GL; DG; DTG; (SCW,SCG); STA; QDG; QDC; WJX are shown.

[0049] FIG. 2.2 is a sectional view of the complex shapes of the stator and the maglev type slider;

[0050] wherein: HDT; XFC—maglev magnet; DTG; SCG; STA; QDG; QDC; WJX are shown.

[0051] FIG. 3 is a sectional view of the complex shapes of a sealing pure iron tube stator and the dynamicer main body;

[0052] wherein: GL; CX—carriage; QTX; DTG; (SCW,SCG); STA; QDX; XGJ; WJX are shown.

[0053] FIG. 4 is a front view of an alternating magnetic field arranged type stator magnetic tube;

[0054] wherein: DTG; DKX; SCGS—the stator magnetic tube inner arc is S; SCGN—the stator magnetic tube inner arc is N; SCGX—the tube without magnetic are shown.

[0055] FIG. 5 is a front view of a traction magnetic tube motor;

[0056] wherein: QYL—traction roller; QYK—traction hole; QYS—traction rope; QYG—traction hook are shown.

[0057] FIG. 6 is a front view of a cable made up by a pair of traction type magnetic tubes motors;

[0058] wherein: ZLS—cable; FJ—aircraft; QYK; QYL are shown.

[0059] FIG. 7 is a side view of a railgun;

[0060] wherein: PDT—shell barrel; CTDJ—magnetic cylinder motor; SP—hillside; PT—supporter are shown.

[0061] FIG. 7.1 is a sectional view of the railgun;

[0062] wherein PDT—shell barrel; CTDJ—magnetic cylinder motor; QDC—driving slot; MFG—sealing tube; DLC—cable car are shown.

[0063] FIG. 8 is a sketch view of a power source with graded capacitors or batteries;

[0064] wherein C0˜Cn—graded capacitors or batteries; K1˜Kn—graded switches; DL+—power cable positive pole; DL−—power cable negative pole; LXG—solenoid; DLT—current monitoring iron core; HEY—Hall element; BSQ—transmitter; XHX—signal line are shown.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Embodiment 1

[0065] A liner motor based on radical magnetic tubes, referred to as “magnetic tubes motor”, comprising: a dynamicer (also known as a mover, QDZ) and a stator STA, a length of the stator is far greater than a length of the dynamicer, in principle analysis the stator is regarded as infinitely long, a structure of the stator STA is: a stator magnetic tube SCG nested into an inner wall of a pure iron tube DTG, the stator magnetic tube SCG provides a radial magnetic field, a stator tube DZGD is formed within the stator magnetic tube SCG, the dynamicer travels in the stator tube; the dynamicer is composed of a dynamicer main body QZT and sliders HDZ, the dynamicer main body QZT comprises: a coil frame XGJ, a dynamicer iron core QTX and a dynamicer coil QDX; a dynamicer main body QZT structure is: the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; after the sliders HDZ are installed on both ends of the dynamicer main body, which become dynamicer; a sensor group is installed on the dynamicer and the stator, to obtain some physical quantities, so as to control a size of drive current and voltage, after dynamicer coil is powered on, the current interacts with a stator magnetic field, forms electromagnetic force, and drives dynamicer movement in the stator tube DZGD, and the dynamicer drives a load by a transmission mechanism; all magnetic tube provide radial magnetic fields, namely, an inner arc is a pole, an outer arc is the another pole.

Embodiment 2

[0066] A hard ferromagnetic tile type stator magnetic tube SCG is a one-way radial magnetic field tube, and is composed of many stator magnetic tiles SCW joining together in the inner arc of the pure iron tube DTG, each of the stator magnetic tiles SCW provides a radial magnetic field, so the stator magnetic tube SCG provides a radial magnetic field too.

Embodiment 3

[0067] A hard ferromagnetic tube type stator magnetic tube SCG adopts an integral radial magnetic tube.

Embodiment 4

[0068] An electromagnet tile type stator magnetic tube SCG is composed of many radial electromagnet tiles (FIG. 1.4) joining together in the inner arc of the pure iron tube DTG, when the dynamicer runs to a certain position of the stator, the electromagnet tile at the certain position is powered on, to produce a radial magnetic field; when the dynamicer leaves a location, the electromagnet tile at the location is powered off, and the magnetic field disappeared.

Embodiment 5

[0069] A stator with a driving slot QDC, a structure thereof is: the driving slot QDC is drilled on the stator STA along a tube direction, a driving hook QDG of the dynamicer reaches out to outside of the driving slot QDC to drag a load, during dynamicer movement in the stator tube DZGD, driving hook QDG drives the load.

Embodiment 6

[0070] A structure of the dynamicer is: the sliders HDZ (FIG. 1.2) are install at both ends of the dynamicer main body QZT (FIG. 1.5); a dynamicer main body QZT structure is: on an outer of the tubular coil skeleton XGJ installed the tubular dynamicer iron core QTX, then on an outer of the dynamicer iron core QTX wound a coil, so as to form the tubular dynamicer coil QDX, the coil skeleton XGJ adding the dynamicer iron core QTX adding the dynamicer coil QDX is equal to the dynamicer main body QZT (FIG. 1.5), the dynamicer iron core is a radial hard ferromagnetic or an electromagnet tubular body, both the dynamicer iron core and the stator magnetic field are consistent in directions, responsible for intercepting negative magnetic lines, and changing magnetic field distribution, so that dynamicer position positive magnetic lines are greater than the negative magnetic lines, so, the dynamicer coil current produces electromagnetic force.

[0071] When the stator is infinitely long one-way magnetic field structure, due to the magnetic field lines as a closed curve, so a certain position in the middle of the stator, net value of positive and negative magnetic flux will be equal to zero, if you don't change the magnetic field distribution, dynamicer coil after electrify will not produce electromagnetic force.

Embodiment 7

[0072] A hard ferromagnetic dynamicer iron core QTX, there are two kinds: the an integral tube type QTX and the a dynamicer magnetic tile QCW splicing tube type, (so in FIG. 1.5, QTX and QCW point to a same place), in order to avoid eddy current, the dynamicer iron core QTX has insulation in a circumferential direction, ferrite itself is insulated, for a rubidium iron boron iron core, insulation in a joint seam PJF or an insulation seam PJF is provided; after the both ends of the dynamicer main body QZT are installed with the sliders HDZ, it becomes the dynamicer; after the dynamicer coil (QDX) is electrified and interacts with a magnetic field, an electromagnetic force is form, driving the dynamicer movement in the stator tube DZGD, the dynamicer drives the load by the transmission mechanism.

Embodiment 8

[0073] An electromagnet tile type dynamicer iron core which is composed of many radial electromagnet tiles (FIG. 1.4) joining together in the outer arc of the coil skeleton XGJ−.

Embodiment 9

[0074] A cross section shape of the magnetic tubes motor, and all of the tubular cross section shape are round, oval, rectangle, polygon, and complex shapes; one of the complex shapes is an arch shape (FIG. 2), whose upper half is a semicircle and a lower part is a rectangle.

Embodiment 10

[0075] An alternating magnetic field arranged type stator magnetic tube is provided, one type of the stator magnetic tube SCG is: the stator magnetic tube SCG is composed of many short magnetic tubes in connection, adjacent short magnetic tubes have opposite magnetic field directions (FIG. 4), in order to describe simply, Definitiona definition is: in these short magnetic tubes, an SCGN inner arc as theis an N pole, as a positive direction, and an SCGS inner arc as is the an S pole, as a negative direction, the stator magnetic tube inner arc is provides N-S-N-S alternating direction magnetic field, between the SCGN and the SCGS sandwiched a non-magnetic tube SCGX, i.e., SCGN-SCGX-SCGS-SCGX-SCGN-SCGX-SCGS-...... alternatealternating, So willso as to form a huge number of magnetic circuits, avoiding the that a net value of positive and negative magnetic flux is equal to zero,

[0076] wherein the dynamicer iron core QTX is made of a soft ferromagnetic material, or is omitted.

[0077] When the dynamicer QDZ is in an interval of the positive magnetic tube SCGN, the dynamicer coil QDX bears a positive driving force when being positively electrified and bears a negative driving force when being negatively electrified; conversely, when the dynamicer QDZ is in an interval of the negative magnetic tube SCGN, the dynamicer coil QDX bears a positive driving force when being negatively electrified and bears a negative driving force when being positively electrified; as a result, when the dynamicer QDX moves to an interval where the magnetic field direction changes, an electrifying direction of the dynamicer coil QDX is changed for guaranteeing a unidirectional driving force;

[0078] when the dynamicer QDZ is in an interval of the non-magnetic tube SCGX, the interval provides no driving force to the dynamicer coil QDX, which is a transition interval for changing a current direction of the dynamicer coil QDX; the current direction is changed by a controller after detecting whether the dynamicer QDZ is at a positive magnetic field interval, a negative magnetic field area or the transition interval.

Embodiment 11

[0079] One of the stator structure is: the pure iron tube DTG is a sealing tube (FIG. 3), wherein a quasi vacuum tube is designed for running in a high-speed train, the dynamicer is used as a carriage CX after the stator tube is pumped into a quasi vacuum state, which greatly reduce air resistance of dynamicer motion.

Embodiment 12

[0080] One of the slider structure is a kind of a wheel-rail type sliding structure, rails (DG, see FIG. 1.3, FIG. 2.1) are installed in the stator inner arc and embedded in the stator magnetic tube SCG but not bulged out over the surface of the stator magnetic tube; the wheels GL is installed on a slider body HDT for slider (FIG. 2.1), wheels GL rotate on the rails DG, a driving hook QDG is fixed on the sliders HDZ; the rails DG have function of power wires and signal wires.

Embodiment 13

[0081] One of the slider structure is a maglevmagnetic levitation structure, a lap of electromagnets or hard ferromagnets is installed in a periphery of a slider body HDT (FIG. 2.2), referred to as a maglev magnet XFC, a magnetic field direction of the maglev magnet XFC reverses in a direction of the magnetic field of the stator magnetic tube SCG, two-magnet repulsion makes the sliders HDZ float; the sliders HDZ is a combination of the maglev type and a wheel-rail type.

Embodiment 14

[0082] There are two models of power supply to the coil, one is through the rails DG) power supply, the other is a cable through the a driving slot QDC, connecting the a power supply supplier and the dynamicer coil (QDX).

Embodiment 15

[0083] A sensor CGQ of the magnetic tube motor, a sensor group CGQ is installed on the dynamicer and the stator, to detect key physical quantities including velocity, force, position, and magnetic field direction, quantities are obtained to control the size of current and voltage.

Embodiment 16

[0084] A traction type magnetic tube motor (FIG. 5), pulleys called traction pulleys QYL are installed at both ends of the stator, and through holes called traction holes QYK are drilled at the end iron cores at both ends of the stator; both ends of a traction rope QYS respectively pass through the traction holes QYK and are connected to both ends of the dynamicer QDZ, and the dynamicer QDZ drives the traction rope QYS and a traction hook QYG for driving an external load.

[0085] Similarly, a traction rod may be used to replace the traction rope QYS, wherein a traction hook on the traction rod moves the external load.

Embodiment 17

[0086] A kind of cable, made up by a pair of traction type magnetic tubes motors (FIG. 6), wherein a pair of traction type magnetic tubes motor traction ropes is connected into one, after the dynamicer is electrified, the cable ZLS produces reverse tension on an aircraft FJ, which produces an aircraft braking force.

Embodiment 18

[0087] Further comprising a structure to keep a driving force constant;

[0088] Notice: the higher speed of the dynamicer QDZ is, the larger the counter voltage is provided, the higher source voltage is offseted, the lower driving voltage will be the lower driving current will be the lower dynamicer driving force will be; for a load such as an aircraft, the driving force is basically kept constant within a catapult period, wherein for keep the driving voltage constant, the source voltage is increased as the dynamicer speed rises, so as to synchronously counter the dynamicer counter voltage; one of various methods for gradually increasing the source voltage is connecting power units in serious and gradually switching in; a method for gradually switching in the power units is a brush method or a switch method;

[0089] wherein the brush method is: installing a brush on a driving hook QDG, and gradually increasing the source electromotive force during brush sliding;

[0090] wherein the switch method is: during dynamicer moving, sending sensor signals to a control circuit for gradually turning on switches, so as to gradually increase the source electromotive force; and gradually turning off normally closed contacts K1, K2, . . . , Kn-2, Kn-1, Kn of the switches, wherein electromotive forces of the power units are gradually superposed between a power cable positive pole DL+ and a power cable negative pole DL−;

[0091] wherein a first type of the switches is: dynamicer position controlled switches, wherein a row of sensors are arranged beside a dynamicer rail; according to a dynamicer position, the sensor signals are sent to the control circuit for gradually turning on the switches, so as to gradually increase the source electromotive force;

[0092] wherein a second type of the switches is: dynamicer speed controlled switches, wherein a speed detecting coil is installed on the dynamicer QDZ, which acts as an individual dynamicer coil with an extreme-slim wire winding along a wire slot of the dynamicer coil QDX; when the dynamicer speed rises, speed signals from the speed detecting coil strengthen, the speed signals are sent to the control circuit for gradually turning on the switches, so as to gradually increase the source electromotive force;

[0093] wherein a third type of the switches is: dynamicer driving current controlled switches, wherein a coil is winded at a fixed end of a cable, an iron core is placed at a center of the coil; the iron core is directed to a transmitter based on a Hall element; when a current is lower than a pre-determined value, a magnetic induction intensity is lower than a pre-determined value; the magnetic induction intensity is detected by the transmitter and sent to the control circuit for turning on switches increasing the source electromotive force.

Embodiment 19

[0094] Further comprising a feedback braking structure;

[0095] wherein for feedback braking, after a load is launched, the dynamicer QDZ is braked; specifically, kinetic energy during dynamicer braking is recovered for being electric energy of a power supply; a position sensor is installed at a position where launch is completed, and a motor state is changed into a generator state; after the load is launched, the over QDZ still keeps a huge amount of the kinetic energy; when the dynamicer QDZ reaches the position where the position sensor is, a magnetic tube motor is changed from the motor state to the generator state, so as to charging the power source with power generated by the kinetic energy of the dynamicer QDZ.

Embodiment 20

[0096] A magnetic tube motor for a railgun and primary launch of a rocket; wherein the railgun is formed by the magnetic tube motor CTDJ and a shell barrel PDT, and the magnetic tube motor CTDJ drives a shell in the shell barrel PDT; a direction of the railgun is gradually changed from a horizontal direction to a direction pointing upwards; the railgun is long enough to adapt a large radius of curvature, which is gently curved and is installed on a supporter PT; for a gunpowder shell, a shell tail is flat for bearing an explosion power, resulting in large friction during flying; the shell of the railgun is catapulted and is streamlined, and friction during flying is much lower than the friction of the shell with the flat shell tail, which increases a firing range;

[0097] wherein the magnetic tube motor is also suitable for launch of the rocket, which adds a ground launch primary stage.