A coupling structure includes a shaft, a tube, and a connection assembly. An end of the shaft is formed with a plurality of axial insertion troughs extended in an axial direction and arranged in an alternate manner. The tube includes a penetration-axle hole formed in a center thereof and corresponding to the penetration-axle section of the shaft. A plurality of radial insertion troughs, in the form of a recessed surface, are formed in an inner circumferential surface of the penetration-axle hole of the tube. The connection assembly includes a coupling block that has an outer circumference formed with a plurality of radial insertion blocks corresponding to the radial insertion troughs of the tube and a plurality of axial insertion blocks corresponding to the axial insertion troughs of the shaft, so that a fastening member may be used to selectively fasten the coupling block between the shaft and the tube.

Coaxial gear mechanism (1) includes a toothing (5) which is oriented axially with respect to an axis of rotation (3) of the coaxial gear mechanism (1), a tooth carrier (7) which in each case has axially oriented guides (9), and tooth pins (11) which each comprise a body (50), which is mounted so as to be axially displaceable in a guide (9) of the tooth carrier (7), and a head region (51), wherein the head region (51) includes at least one tooth (52) for engagement with the toothing (5), and wherein the tooth carrier (7) wherein the tooth carrier has an irregular angular pitch.

A movable barrier operator that includes a motor, an armature shaft of the motor, and a worm screw assembled with a distal end portion of the armature shaft. The movable barrier operator further includes a worm wheel engaged with the worm screw and a rotatable drive member connected to the worm wheel. Turning of the armature shaft and worm screw mounted thereto causes turning of the worm wheel and rotatable drive member.

A work of incorporating a speed reduction mechanism including a scissors gear into a gear case is facilitated. In a state where the angular positions of gear teeth of a first gear and the angular positions of gear teeth of a scissors gear are made to coincide with each other against the elastic force of a torsion spring (19), these angular positions are fixed by a fixing member (position fixing step). The first gear, the scissors gear, and a second gear are housed in a gear case, and the gear teeth of the second gear are made to engage with the gear teeth of the first gear and the gear teeth of the scissors gear (gear incorporating step). The fixing of the angular position of the first gear and the angular position of the scissors gear by the fixing member is released through an opening formed in the gear case.

A first rotation shaft (which is provided with a first gear) is assembled to a first case member so as to provide a first assembly. A second rotation shaft (which is provided with a second gear) and a third rotation shaft (which is provided with a third gear) are assembled to a support member so as to provide a second assembly. When the second assembly is assembled to the first assembly, the second assembly is rotatable around a third axis from a first position where the first gear and the second gear are located away from each other to a second position where the first gear and the second gear are in mesh with each other, and is positioned at the second position by using a positioning member.

A first rotation shaft (which is provided with a first gear) is assembled to a first case member so as to provide a first assembly. A second rotation shaft (which is provided with a second gear) and a third rotation shaft (which is provided with a third gear) are assembled to a support member so as to provide a second assembly. When the second assembly is assembled to the first assembly, the second assembly is rotatable around a third axis from a first position where the first gear and the second gear are located away from each other to a second position where the first gear and the second gear are in mesh with each other, and is positioned at the second position by using a positioning member.

A speed reducer-equipped motor of the present disclosure includes a housing to which a motor is fixed and that has a speed reducer housing recess, and a helical gear and a locking gear that are accommodated in the speed reducer housing recess. A spring is provided between the helical gear and the locking gear, and reduces wobbling of the helical gear, the locking gear, and the like in the speed reducer housing recess.

A machining device for duplex gear of high-precision reducer for robot includes a laser welding device, a laser rotary support, a rotary mechanism and a rotary platform, the rotary mechanism being installed with a reducer body, wherein a center of a central gear is fixedly connected with a rotating shaft; sets of duplex gears are evenly disposed around the central gear; the gear of each set of duplex gear which is connected with the central gear are connected to an output gear ring from outside; a fixed gear ring is disposed above the output gear ring; a rotating frame is disposed at ends, close to the top of the reducer, of rotating shafts of the sets of duplex gears and the rotating shaft of the central gear.

A machining device for duplex gear of high-precision reducer for robot includes a laser welding device, a laser rotary support, a rotary mechanism and a rotary platform, the rotary mechanism being installed with a reducer body, wherein a center of a central gear is fixedly connected with a rotating shaft; sets of duplex gears are evenly disposed around the central gear; the gear of each set of duplex gear which is connected with the central gear are connected to an output gear ring from outside; a fixed gear ring is disposed above the output gear ring; a rotating frame is disposed at ends, close to the top of the reducer, of rotating shafts of the sets of duplex gears and the rotating shaft of the central gear.

A vehicle driveline component with a housing, a tube and a plurality of slugs. The housing has a tube mount with a body and a plurality of slug bores. The body defines a tube bore that extends along an axis. The slug bores are spaced circumferentially apart about and are formed through the body. Each of the slug bores intersects the tube bore. The tube is received in the tube bore. Each of the slugs is received into an associated one of the slug bores and is welded to the tube. Each of the slugs engages an inside surface of one of the slug bores to inhibit movement of the tube relative to the tube mount. The body has a wall thickness and each of the slugs engages the inside surface of one of the slug bores over a distance that is less than the wall thickness.