Sterilization and Deodorization Waste Bin with Dual-band Ultraviolet Tube

Abstract

The monitoring device and crane capable of displaying real-time hook bias angle to prevent oblique hoisting and anti-swaying. Its characteristics are:

a fixed pulley assembly a1 of a crane is hung on a lifting lug b2 of a crane boom b1 via a connector a3 with shackles a5, the other end of the connector a3 is connected to the fixed pulley assembly a1 with an articulated shaft a2, and the articulated shaft a2 is arranged in an orientation perpendicular to a fixed pulley axis; and a platform surface a6 perpendicular to the line of force action of the pulley block is arranged on the connector a3, an angle measuring instrument a7 is installed on the platform surface a6, The hook bias angle and direction accurately detected and displayed in real time provide a basis for the adjustment and control of the hook bias angle and direction during hoisting: It mainly includes turntable rotation centering and boom pitch centering for vertical hoisting.

Claims

1. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting, wherein: (1) detecting and displaying the hook bias angle: a fixed pulley assembly (a1) of a crane is hung on a lifting lug (b2) of a crane boom (b1) via a connector (a3) with shackles (a5), the other end of the connector (a3) is connected to the fixed pulley assembly (a1) with an articulated shaft (a2), and the articulated shaft (a2) is arranged in an orientation perpendicular to the axis of the fixed pulley; and a platform surface (a6) perpendicular to the force action line of pulley block is arranged on the connector (a3), an angle measuring instrument (a7) is installed on the platform surface (a6), the angle measuring instrument is connected with a controller in a crane operation room, and a real-time X-axis component and the detected real-time components along the X-axis and Y-axis are combined and equal to the real-time hook bias angle, which is displayed on a display screen of the crane operation room; (2) centering and hoisting an object according to the real-time hook bias angle; (3) preventing a hook bias angle of the crane from exceeding an allowable value according to the real-time hook bias angle.

2. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 1, wherein vertical hoisting or centering for vertical hoisting is realized in the alternate operation of slow or extremely slow hoisting and centering of the crane based on the hook bias angle and direction which are accurately detected and displayed in real time.

3. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 1 or 2, wherein, firstly, according to the direction of the hook bias angle displayed in real time, control the rotary handle to center, so that the turntable rotates the boom to the direction of the hook bias angle in real time, and then follow real-time display of the hook bias angle, control the boom tilt handle to center, so that the real-time hook bias angle is 0°.

4. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 1 or 2, wherein, centering for vertical hoisting of the real-time hook bias angle and direction comprises the following steps: S1 the controller obtains the hook bias angle and direction of the crane in real time; S2 turntable rotation centering: S21 detects the direction of the real-time hook bias angle, S22 Judge whether the boom deviates from the direction of the real-time book yaw angle, if yes, go to step S23, if not, go to step S21, step S23 to make the turntable rotate the boom to the direction of the real-time hook bias angle; S3 boom pitch centering: S31 detects the real-time hook bias angle, S32 judges whether the absolute value of the real-time hook bias angle is >00, if yes, go to step S33, if not, go to step S31, step S33 to make the real-time hook bias angle to 0°.

5. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 1, wherein, first, according to the direction of the hook bias angle displayed in real time, the corresponding bridge crane gantry handle is controlled to be centered, so that the bridge crane gantry travels and the bridge crane trolley to align the direction of the real-time hook bias angle, and then according to the hook bias angle displayed in real time, control the corresponding bridge crane trolley handle to centering, makes the bridge crane trolley travel to the real-time hook bias angle 0°.

6. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 1 or 2, wherein centering for vertical hoisting of the real-time hook bias angle and direction comprises the following steps: S1 the controller obtains the hook bias angle and direction of the bridge crane in real time; S2 the bridge crane gantry travels centering: S21 detects the direction of the real-time hook bias angle, S22 judges whether the bridge crane trolley deviates from the direction of the real-time hook bias angle, If yes, go to step S23, if not, go to step S21, step S23 to make the bridge crane gantry travel and the bridge crane trolley to align the direction of the real-time hook bias angle S3 the bridge crane trolley travels centering: S31 detects the real-time hook bias angle, S32 determines whether the absolute value of the real-time hook bias angle is >0°, if yes, go to step S33, if not, go to step S31, step S33 makes the bridge crane trolley travel to the real-time hook bias angle 0°.

7. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 1, wherein the hook bias angle of the crane is prevented from exceeding an allowable value during hoisting based on the hook bias angle and direction which are accurately detected and displayed in real time.

8. The monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting as claimed in claim 7, wherein an alarm is given when the horizontal offset between the lifting height of the crane and the hook reaches an early warning value.

9. The monitoring device capable of displaying real-time book bias angle to prevent oblique hoisting as claimed in claim 7, wherein an alarm is given when the slanting hoist increasing torque of the crane reaches an early warning value, and stop hoisting or moving in a large direction when exceeding the rated lifting torque.

10. A crane, wherein: (1) detecting and displaying the hook bias angle: a fixed pulley assembly a1 of a crane is hung on a lifting lug b2 of a crane boom b1 via a connector a3 with shackles a5, the other end of the connector a3 is connected to the fixed pulley assembly a1 with an articulated shaft a2, and the articulated shaft a2 is arranged in an orientation perpendicular to the axis of the fixed pulley; and a platform surface a6 perpendicular to the force action line of pulley block is arranged on the connector a3, an angle measuring instrument a7 is installed on the platform surface a6, the angle measuring instrument is connected with a controller in a crane operation room, and a real-time X-axis component and the detected real-time components along the X-axis and Y-axis are combined and equal to the real-time hook bias angle, which is displayed on a display screen of the crane operation room; (2) centering and hoisting an object according to the real-time hook bias angle; (3) preventing a hook bias angle of the crane from exceeding an allowable value according to the real-time hook bias angle.

11. The crane as claimed in claim 10, wherein centering for vertical hoisting of the real-time hook bias angle and direction comprises the following steps: S1 the controller obtains the hook bias angle and direction of the crane in real time; S2 turntable rotation centering: S21 detects the direction of the real-time hook bias angle, S22 Judge whether the boom deviates from the direction of the real-time hook yaw angle, if yes, go to step S23, if not, go to step S21, step S23 to make the turntable rotate the boom to the direction of the real-time hook bias angle; S3 boom pitch centering: S31 detects the real-time hook bias angle, S32 judges whether the absolute value of the real-time hook bias angle is >0°, If yes, go to step S33, if not, go to step S31, step S33 to make the real-time hook bias angle to 0°.

12. The crane as claimed in claim 10, wherein centering for vertical hoisting of the real-time hook bias angle and direction comprises the following steps: S1 the controller obtains the hook bias angle and direction of the bridge crane in real time; S2 the bridge crane gantry travels centering: S21 detects the direction of the real-time hook bias angle, S22 judges whether the bridge crane trolley deviates from the direction of the real-time hook bias angle, if yes, go to step S23, if not, go to step S21, step S23 to make the bridge crane gantry travel and the bridge crane trolley to align the direction of the real-time hook bias angle; S3 the bridge crane trolley travels centering: S31 detects the real-time hook bias angle, S32 determines whether the absolute value of the real-time hook bias angle is >0°, if yes, go to step S33, if not, go to step S31, step S33 makes the bridge crane trolley travel to the real-time hook bias angle 0°.

13. The crane as claimed in claim 10, wherein an alarm is given when the horizontal offset between the lifting height of the crane and the hook reaches an early warning value.

14. The crane as claimed in claim 10, wherein an alarm is given when the slanting hoist increasing torque of the crane reaches an early warning value, and stop hoisting or moving in a large direction when exceeding the rated lifting torque.

Description

DESCRIPTION OF THE DRAWING

[0036] FIG. 1 shows the implementation diagram of real-time hook bias angle prevent oblique hoisting and anti-swaying;

[0037] FIG. 2 is an explanatory structural diagram of a hook bias angle; Reference numerals in FIG. 2: a1: fixed pulley assembly: a2: articulated shaft; a3: connector; a4: shackle 1; a5: shackle 2;

a6: platform surface; a7: angle measuring instrument;

[0038] FIG. 3 is a left sectional view of the embodiment in FIG. 2;

[0039] FIG. 4 is a schematic diagram of a lifting lug of a crane boom;

[0040] Reference numerals in FIG. 4: b1: boom; b2: lifting lug;

[0041] FIG. 5 is an explanatory diagram of detecting a hook bias angle from a pulley block force application line;

[0042] FIG. 6 is a flow chart of centering of a mobile crane centering type;

[0043] FIG. 7 is a flow chart of centering of a bridge crane centering type;

[0044] FIG. 8 is a schematic diagram of a hook assembly;

[0045] Reference numerals in FIG. 8: A1: movable pulley assembly; A2: hook assembly; A3: choke plate; A4: movable pulley guard; A5: platform; A6: inertia sensor;

[0046] FIG. 9 is a schematic diagram of double-pulse feedforward.

DETAILED DESCRIPTION OF THE INVENTION

[0047] the invention adopts the following technical solution. A monitoring device capable of displaying real-time hook bias angle to prevent oblique hoisting and anti-swaying, as shown in FIG. 2,

firstly, detecting and displaying the hook bias angle

[0048] As shown in FIG. 2, a fixed pulley assembly a1 of a crane is hung on a lifting lug b2 of a crane boom b1 via a connector a3 with shackles a5,

the other end of the connector a3 is connected to the fixed pulley assembly a1 with an articulated shaft a2, and the articulated shaft a2 is arranged in an orientation perpendicular to a fixed pulley axis;
therefore, when a pulley block force application point on the fixed pulley axis deviates, the fixed pulley assembly a1 will be automatically adjusted along the articulated shaft a2 under the effect of hoisting tension of the pulley block, at this point, the fixed pulley axis inclines slightly. Because the pulley block force application line passes through the connector a3, when a platform with a platform surface a6 perpendicular to the pulley block force application line is fixedly installed on the connector a3, the pulley block force application line will be always perpendicular to the platform surface a6 in the hoisting process.

[0049] Therefore, the correct detection of the swing attitude of the hook etc. can be carried out through the platform surface a6, because the force action line of the pulley block is always perpendicular to the platform surface a6 when the load is lifted; An angle measuring instrument a7 is fixedly installed on the platform surface a6, and the detected angle between the platform surface which perpendicular to the line of force action of the pulley block and the horizontal surface is numerically equal to the real-time hook bias angle in value.

[0050] Because the detected real-time hook bias angle is determined by the angle that the line of force action of the pulley block deviates from the vertical line, the basis and rationale are clear and doubtless, and installing the angle measuring instrument on the platform surface for detection is a reliable prior art, the hook bias angle detection solution is reliable and feasible.

[0051] Installing an angle measuring instrument to detect real-time hook bias angle The BWD-VG500 dynamic measurement inclinometer (X, Y axis dynamic accuracy 0.1 degree) of Beiwei Sensing (WWW.bewis.com.cn) is selected and install it on the defined platform surface a6; the detected real-time X, Y axial components are transmitted via the bus, and the real-time hook bias angle value is equal to the real-time X, Y axial component composite value by the single-chip microcomputer; that a deviation direction of the line of force action of the pulley block from the vertical line is perpendicular to an intersection line of the platform surface a6 and the horizontal plane, and the real-time deviation angle of the line of force action of the pulley block from the vertical line is located on the same plane as the real-time included angle between the platform surface a6 perpendicular to the line of force action of the pulley block and the horizontal plane; and according to the real-time X and Y axial component polarities, the real-time hook bias angle value and orientation are accurately displayed in the crane operating room through the matching display of the prior art.

[0052] According to the hook bias angle and direction accurately detected and displayed in real time, centering hoisting or monitoring of the controller is realized, and advanced monitoring including early warning and restriction is realized.

[0053] Take the crane trolley as an example to explain the anti-shake operation of the crane hook: the inertial sensor detects the swing angle and acceleration of the crane hook in real time and sends detection results to the controller, when the crane trolley stops, the crane hook swings under the inertia; at this point, according to the acquired swing angle, acceleration, and the moving direction of the crane trolley handle operation signal, the controller controls the crane trolley in accordance with the acceleration continue to mo.sup.ve in the moving direction when the crane trolley stops and swings back to the second half of the first cycle, until the crane hook swing angle reduced to zero.

[0054] It should be noted that the above-mentioned embodiments of the present invention are only examples, and for those of ordinary skill in the art, some modifications and embellishments made according to the present invention should also be regarded as the protection scope of the present invention.