1. The utility model provides a fixed establishment of adjustable diameter of planetary gear processing which characterized in that: the sun gear fixing device comprises a fixing seat, wherein a fixing mechanism for fixing an inner ring of a sun gear is arranged in the center of the fixing seat;

the fixing mechanism comprises a first disk seat, a plurality of fixing rods capable of sliding along the radial direction of the first disk seat are uniformly arranged on the circumferential direction of the upper side face of the first disk seat, and a driving mechanism used for driving the fixing rods to move is arranged on the first disk seat.

The upper side face of the fixed seat is provided with a plurality of clamping plates used for limiting and clamping the gear ring, and the clamping plates are uniformly arranged around the axis of the first disk seat.

2. The planetary gear machining diameter-adjustable fixing mechanism according to claim 1, wherein: the circular shape hole of dodging is seted up at the center of fixing base, is located the below of dodging the hole be provided with dodge the coaxial spacing section of thick bamboo that sets up of hole, first disk seat is fixed in the spacing section of thick bamboo.

3. The planetary gear machining diameter-adjustable fixing mechanism according to claim 2, wherein: the inner wall at the upper end of the limiting cylinder is circumferentially provided with a circular retaining edge, and the first disk seat is provided with a catching groove matched with the retaining edge.

4. The planetary gear machining diameter-adjustable fixing mechanism according to claim 1, wherein: the fixing rods are four, a cross hole is formed in the center of the first disc seat, sliding grooves are formed in four hole sections of the cross hole, sliding blocks are arranged in the sliding grooves, and the fixing rods are fixed to the upper side faces of the sliding blocks.

5. The planetary gear machining diameter-adjustable fixing mechanism according to claim 4, wherein: the driving mechanism comprises a second disc seat, the upper side surface of the second disc seat is provided with a taper pin corresponding to the cross hole, the taper pin is inserted into the cross hole from the bottom side surface of the first disc seat, and a spring is arranged in the chute and positioned outside the sliding block; the center of second dish seat and taper pin runs through and has seted up the second through-hole, be provided with the threaded rod in the second through-hole, the bottom of threaded rod is provided with and twists the head soon, is located the center of the top of first dish seat is provided with the limiting plate, the limiting plate pass through the connecting rod with first dish seat fixed connection, set up threaded hole on the limiting plate, the threaded rod pass through the screw hole with the limiting plate cooperation is connected.

6. The planetary gear machining diameter-adjustable fixing mechanism according to claim 5, wherein: the length of the connecting rod is greater than or equal to the height of the taper pin.

7. The planetary gear machining diameter-adjustable fixing mechanism according to claim 5, wherein: and a groove is formed on the bottom side surface of the second disc seat and is coaxial with the second through hole, and the forming depth of the groove is the same as the height of the screwing head.

8. The planetary gear machining diameter-adjustable fixing mechanism according to claim 2, wherein: the fixed seat is provided with four first guide grooves which are uniformly distributed around the axis of the limiting cylinder, and the bottom of the clamping plate is provided with a connecting seat which can slide along the first guide grooves; the outside interference fit of a spacing section of thick bamboo is connected with the bearing, the outside interference fit of bearing has the gear, the connecting seat pass through the rack with gear fit connects, the rack is followed gear circumference evenly arranges, and the rack winds the axle center of gear is axial symmetry distribution, the connecting seat with set up the extension spring between the spacing section of thick bamboo.

9. The planetary gear machining diameter-adjustable fixing mechanism according to claim 8, wherein: the adjacent two racks are arranged in a vertically staggered mode, the two non-adjacent racks are located on the same horizontal plane, a connecting plate is fixed to one end, far away from the gear, of each rack, and the connecting seat is fixed to the connecting plate.

10. The planetary gear machining diameter-adjustable fixing mechanism according to claim 8, wherein: a second guide groove is formed in the rack, a limiting column corresponding to the second guide groove is fixed on the bottom side face of the fixing seat, the limiting column is arranged in the second guide groove in a sliding mode, and the bottom end of the limiting column is provided with a blocking piece used for preventing the rack from sagging.

Background

The gear is a wheel-shaped mechanical part which transfers torque by means of meshing of teeth, the gear can realize the functions of changing rotating speed and torque, changing movement direction, changing movement form and the like by being transmitted with other tooth-shaped mechanical parts, and the gear mechanism is widely applied to industrial products due to the advantages of high transmission efficiency, accurate transmission ratio, large power range and the like.

In addition to being able to rotate about their own axis of rotation (B-B) as a fixed axis gear, the planet gears also rotate about the axes (A-A) of the other gears with a blue carrier (referred to as a planet carrier). Rotation about its own axis is called "rotation", and rotation about the other gear axis is called "revolution", just like a planet in the solar system, and hence its name.

When the planetary gear is assembled and machined, the gear assembly is complex and various, and therefore the fixing frame is required to be fixed, the type of the planetary gear which can be fixed by the traditional fixing mechanism is single, corresponding adaptability adjustment cannot be carried out according to the aperture of an actual gear, the application range is small, and the practicability is low.

Disclosure of Invention

In view of the above, the present invention is directed to a fixing mechanism for a planetary gear with an adjustable diameter, so as to solve the problems mentioned in the background above, such as single type of planetary gear, inability to perform corresponding adaptive adjustment according to the aperture of the actual gear, small application range, and low practicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fixing mechanism capable of adjusting the diameter for machining a planetary gear comprises a fixed seat, wherein a fixing mechanism for fixing an inner ring of a sun gear is arranged in the center of the fixed seat;

the fixing mechanism comprises a first disk seat, a plurality of fixing rods capable of sliding along the radial direction of the first disk seat are uniformly arranged on the circumferential direction of the upper side face of the first disk seat, and a driving mechanism used for driving the fixing rods to move is arranged on the first disk seat.

The upper side face of the fixed seat is provided with a plurality of clamping plates used for limiting and clamping the gear ring, and the clamping plates are uniformly arranged around the axis of the first disk seat.

Furthermore, the circular shape hole of dodging has been seted up at the center of fixing base, is located the below of dodging the hole be provided with dodge the coaxial spacing section of thick bamboo that sets up of hole, first disk seat is fixed in the spacing section of thick bamboo.

Furthermore, the inner wall at the upper end of the limiting cylinder is circumferentially provided with a circular retaining edge, and the first disc seat is provided with a catching groove matched with the retaining edge.

Furthermore, the number of the fixing rods is four, a cross hole is formed in the center of the first disk seat, sliding grooves are formed in four hole sections of the cross hole, sliding blocks are arranged in the sliding grooves, and the fixing rods are fixed to the upper side face of each sliding block.

Furthermore, the driving mechanism comprises a second disk seat, the upper side surface of the second disk seat is provided with a taper pin corresponding to the cross hole, the taper pin is inserted into the cross hole from the bottom side surface of the first disk seat, and a spring is arranged in the chute and positioned outside the sliding block; the center of second dish seat and taper pin runs through and has seted up the second through-hole, be provided with the threaded rod in the second through-hole, the bottom of threaded rod is provided with and twists the head soon, is located the center of the top of first dish seat is provided with the limiting plate, the limiting plate pass through the connecting rod with first dish seat fixed connection, set up threaded hole on the limiting plate, the threaded rod pass through the screw hole with the limiting plate cooperation is connected.

Further, the length of the connecting rod is larger than or equal to the height of the taper pin.

Furthermore, a groove is formed in the bottom side surface of the second disc seat and coaxial with the second through hole, and the forming depth of the groove is the same as the height of the screwing head.

Furthermore, four first guide grooves which are uniformly distributed around the axis of the limiting cylinder are formed in the fixing seat, and a connecting seat which can slide along the first guide grooves is arranged at the bottom of the clamping plate; the outside interference fit of a spacing section of thick bamboo is connected with the bearing, the outside interference fit of bearing has the gear, the connecting seat pass through the rack with gear fit connects, the rack is followed gear circumference evenly arranges, and the rack winds the axle center of gear is axial symmetry distribution, the connecting seat with set up the extension spring between the spacing section of thick bamboo.

Furthermore, two adjacent racks are arranged in a vertically staggered mode, two non-adjacent racks are located on the same horizontal plane, a connecting plate is fixed to one end, far away from the gear, of each rack, and the connecting seat is fixed to the connecting plate.

Furthermore, a second guide groove is formed in the rack, a limiting column corresponding to the second guide groove is fixed on the bottom side face of the fixing seat, the limiting column is arranged in the second guide groove in a sliding mode, and a blocking piece used for preventing the rack from sagging is arranged at the bottom end of the limiting column.

Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:

1. according to the invention, the fixed rod movably fixes the sun gear, so that the device can fix various sun gears with different diameters, and has wide application range and high practicability;

2. according to the invention, the length of the connecting rod is greater than or equal to the height of the taper pin, so that the maximum distance range of the taper pin is adjusted, and finally the adjustment of the maximum distance range of the fixing rod is obtained;

3. according to the invention, the screwing head is arranged in the groove, so that the screwing head is not contacted with the external ground, and the smoothness and stability of a contact surface are ensured when the second disc seat is contacted with the external ground;

4. according to the invention, when any one of the clamping plates is pulled by manpower, all the rest clamping plates can synchronously move along with the pulled clamping plate, so that the opening action of the clamping plates is convenient, and the fixed installation of the gear ring is facilitated.

5. In the invention, two adjacent racks are arranged in a vertically staggered manner, so that the two adjacent racks can be prevented from colliding during moving; two non-adjacent racks are positioned in the same horizontal plane, so that the occupied space of the racks in the vertical direction can be reduced.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an external view of a planetary gear machining diameter adjustable fixing mechanism of the present invention;

FIG. 2 is an exploded view of the planetary gear set adjustable diameter mounting mechanism of the present invention;

FIG. 3 is a schematic structural diagram of a fixing seat of the fixing mechanism for processing the adjustable diameter of the planetary gear of the invention;

FIG. 4 is a schematic view of the internal structure of the adjustable diameter fixing mechanism for planetary gear machining according to the present invention;

FIG. 5 is a schematic structural view of a clamping plate of the planetary gear machining diameter-adjustable fixing mechanism of the invention;

FIG. 6 is a partial structural view of a fixing mechanism of the planetary gear machining diameter-adjustable fixing mechanism of the invention;

FIG. 7 is a first schematic structural diagram of a fixing mechanism of the fixing mechanism for processing the adjustable diameter planetary gear of the invention;

FIG. 8 is a second schematic structural view of a fixing mechanism of the planetary gear machining diameter-adjustable fixing mechanism of the present invention;

FIG. 9 is a fourth schematic view of the taper pin structure of the fixing mechanism for processing the adjustable diameter planetary gear of the invention;

FIG. 10 is a schematic view of a first disk seat structure of the adjustable diameter fixing mechanism for planetary gear machining according to the present invention;

FIG. 11 is a cross-sectional view A-A of FIG. 10 of the planetary gear of the present invention machining an adjustable diameter;

FIG. 12 is a schematic view of a rack structure of a fixing mechanism for processing an adjustable diameter planetary gear according to the present invention.

The reference numbers are as follows:

1. a fixed seat; 11. a limiting cylinder; 12. blocking edges; 13. a first guide groove;

2. a base; 21. a first through hole;

3. a fixing mechanism;

31. a first tray base; 311. a cross hole; 3111. a chute; 312. buckling grooves;

321. a second tray base; 3211. a groove; 322. a taper pin; 323. a second through hole;

331. a limiting plate; 332. a connecting rod;

34. a threaded rod; 341. screwing the head; 35. a spring;

36. a slider;

37. fixing the rod;

4. a bearing; 5. a gear;

6. a rack; 61. a connecting plate; 62. a second guide groove;

7. a limiting column; 71. a baffle plate; 8. a tension spring;

9. a splint; 91. a connecting seat.

Detailed Description

For convenience of description, a coordinate system is defined as shown in fig. 1, and the left-right direction is taken as a transverse direction, the front-back direction is taken as a longitudinal direction, and the up-down direction is taken as a vertical direction.

Referring to fig. 1 to 12, which show specific structures of preferred embodiments of the present invention, a fixing mechanism for processing a planetary gear with an adjustable diameter includes a fixing base 1 for placing a planetary gear assembly, and a fixing mechanism 3 for fixing an inner ring of a sun gear is disposed at the center of the fixing base 1.

The fixing mechanism 3 comprises a first disk seat 31, a plurality of fixing rods 37 capable of sliding along the radial direction of the first disk seat 31 are uniformly arranged on the upper side surface of the first disk seat 31 in the circumferential direction, and a driving mechanism for driving the fixing rods 37 to move is arranged on the first disk seat 31.

The upper side surface of the fixed seat 1 is provided with a plurality of clamping plates 9 used for limiting and clamping the gear ring, and the clamping plates 9 are uniformly arranged around the axis of the first disk seat 31.

In this embodiment, as shown in fig. 3 and 10, the fixing base 1 is set to be in a circular cover shape, and is located a circular avoiding hole (not marked in the drawing) is formed in the center of the fixing base 1, a limiting barrel 11 is disposed below the avoiding hole and coaxially disposed with the avoiding hole, and the first disc base 31 is fixed in the limiting barrel 11. Preferably, a circular retaining edge 12 is circumferentially arranged on the inner wall of the upper end of the limiting cylinder 11, and a fastening groove 312 corresponding to the retaining edge 12 is formed on the first disk seat 31.

Specifically, the first disk seat 31 can be effectively prevented from being separated from the fixed seat 1 by the cooperation of the fastening groove 312 and the rib 12, so that the overall stability of the device is improved.

As a specific embodiment, as shown in fig. 8, 10 and 11, four fixing rods 37 are used, a cross hole 311 is formed in the center of the first tray 31, sliding grooves 3111 are formed in four hole sections of the cross hole 311, a slider 36 is disposed in the sliding groove 3111, and the fixing rods 37 are fixed on the upper side surface of the slider 36.

In this embodiment, as shown in fig. 6 to 9, the driving mechanism includes a second tray 321, a taper pin 322 corresponding to the cross hole 311 is disposed on an upper side surface of the second tray 321, the taper pin 322 is tapered from bottom to top, and is configured as a cross taper pin, the taper pin 322 is inserted into the cross hole 311 from a bottom side surface of the first tray 31, and a spring 35 for preventing the slider 36 from moving away from the axis of the first tray 31 is disposed in the sliding slot 3111; the center of second dish seat 321 and taper pin 322 runs through and has seted up second through-hole 323, be provided with threaded rod 34 in the second through-hole 323, the bottom of threaded rod 34 is provided with and is used for revolving wrong head 341 of threaded rod 34, is located the center of the top of first dish seat 31 is provided with limiting plate 331, limiting plate 331 pass through the connecting rod with first dish seat 31 fixed connection, set up threaded hole (not marked in the figure) on the limiting plate 331, threaded rod 34 pass through the screw hole with limiting plate 331 cooperation is connected.

Specifically, the inner ring of the sun gear is sleeved outside the fixing rod 37, the threaded rod 34 is adjusted to move up and down on the limiting plate 331 by rotating the screwing head 341, in the upward movement process, the screwing head 341 pushes the second disk seat 321 and the taper pin 322 to move up, meanwhile, the taper pin 322 pushes the slider 36 to move to one side far away from the axis of the first disk seat 31, the spring 35 is compressed, the fixing rod 37 is synchronously displaced along with the slider 36 until the fixing rod 37 is tightly attached to the wall surface of the inner ring of the sun gear, and at this time, the axis of the sun gear is overlapped with the axis of the first disk seat 31, so that the fixing of the sun gear is completed. During the downward movement of the threaded rod 34, the spring 35 extends and pushes the sliding block 36 to move towards the side close to the axis of the first disk seat 31, and during the movement of the sliding block 36, the pressing taper pin 322 moves downward to complete the reset operation. Through the movable fixed to the sun gear of dead lever 37, make the device can fix the sun gear of multiple diameter difference, application scope is wide, and the practicality is high.

In this embodiment, as shown in FIG. 6, the length of the connecting rod 332 is greater than or equal to the height of the taper pin 322.

Specifically, the length of the connecting rod 332 is greater than or equal to the height of the taper pin 322, so that the maximum distance range of the taper pin 322 is adjusted, and finally the maximum distance range of the fixing rod 37 is adjusted.

In this embodiment, as shown in fig. 7, a circular groove 3211 is coaxially formed on the bottom side surface of the second tray 321 and the second through hole 323, and a forming depth of the groove 3211 is the same as a height of the screwing head 341.

In particular, the screw head 341 is disposed in the groove 3211, so that the screw head 341 does not contact with the external ground, and the contact surface is ensured to be smooth and stable when the second socket 321 contacts with the external ground.

In this embodiment, as shown in fig. 2 to 5, four first guide grooves 13 uniformly arranged around the axis of the limiting cylinder 11 are formed in the fixing seat 1, and a connecting seat 91 capable of sliding along the first guide grooves 13 is formed at the bottom of the clamping plate 9; the outside interference fit of a spacing section of thick bamboo 11 is connected with bearing 4, the outside interference fit of bearing 4 has gear 5, connecting seat 91 through rack 6 with gear 5 cooperation is connected, rack 6 is followed 5 circumference evenly arranges of gear, and rack 6 winds the axle center of gear 5 is axisymmetric distribution, connecting seat 91 with be provided with between the spacing section of thick bamboo 11 and be used for preventing connecting seat 91 is to keeping away from the extension spring of 11 axle center one side removal of spacing section of thick bamboo.

Specifically, when the clamping plate 9 is pulled by manpower, and the clamping plate 9 moves to one side far away from the axis of the limiting cylinder 11, the clamping plate 9 drives the rack 6 to move synchronously through the connecting seat 91, the gear 5 rotates in the process of moving the rack 6, the gear 5 drives all other racks 6 to move to one side far away from the axis of the limiting cylinder 11 in the rotating process, finally all other racks 6 drive the clamping plate 9 to move to one side far away from the axis of the limiting cylinder 11 through the corresponding connecting seat 91, all the tension springs 8 are in a force accumulation extension state, and finally the opening action of the clamping plate 9 is realized, at the moment, the gear ring is placed between the clamping plate 9, then the clamping plate 9 is loosened to enable the tension spring 8 to contract, the tension spring 8 drives the clamping plate 9 and the rack 6 to move to one side near the axis of the limiting cylinder 11 through the connecting seat 91, until the gear ring is clamped by the clamping plate 9, the axis of the gear ring is superposed with the axis of the limiting cylinder 11.

In this embodiment, as shown in fig. 4 and 12, two adjacent racks 6 are staggered up and down, two non-adjacent racks 6 are located in the same horizontal plane, a connecting plate 61 is fixed to one end of each rack 6 away from the gear 5, and the connecting seat 91 is fixed to the connecting plate 61.

Specifically, two adjacent racks 6 are arranged in a vertically staggered manner, so that the two adjacent racks 6 can be prevented from colliding during moving; two non-adjacent racks 6 are located in the same horizontal plane, so that the occupied space in the vertical direction of the racks 6 can be reduced.

In this embodiment, a second guide groove 62 is formed in the rack 6, a limiting post 7 corresponding to the second guide groove 62 is fixed on the bottom side surface of the fixing base 1, the limiting post 7 and the second guide groove 62 are in a sliding fit relationship, and a blocking piece 71 for preventing the rack 6 from sagging is arranged at the bottom end of the limiting post 7.

Specifically, the sliding fit relationship between the limiting column 7 and the second guide groove 62 can provide a stable moving direction for the rack 6, and the blocking piece 71 limits the rack 6 on a fixed horizontal plane to prevent the rack 6 from falling off the gear 5.

The working principle of the invention is as follows: in the invention, when in use, firstly, the inner ring of the sun gear is sleeved on the outer side of the fixed rod 37, the threaded rod 34 is adjusted to move up and down on the limit plate 331 by rotating the screwing head 341, in the process of moving up, the screwing head 341 pushes the second disk seat 321 and the taper pin 322 to move up, meanwhile, the taper pin 322 pushes the slide block 36 to move to one side far away from the axis of the first disk seat 31, the spring 35 is compressed, the fixed rod 37 synchronously moves along with the slide block 36 until the fixed rod 37 is tightly attached to the wall surface of the inner ring of the sun gear, and at this time, the axis of the sun gear is superposed with the axis of the first disk seat 31, thus the fixation of the sun gear is completed;

then, pulling any one of the clamping plates 9 by manpower, and making the clamping plate 9 move to one side far away from the axis of the limiting cylinder 11, the clamping plate 9 drives the racks 6 to move synchronously through the connecting seat 91, the gears 5 rotate in the process of moving the racks 6, the gears 5 drive all other racks 6 to move to one side far away from the axis of the limiting cylinder 11 in the rotating process, finally all other racks 6 drive the clamping plate 9 to move to one side far away from the axis of the limiting cylinder 11 through the corresponding connecting seat 91, and all the tension springs 8 are in a force storage extension state, and finally realize the opening action of the clamping plate 9, at this time, placing the gear ring between the clamping plates 9, then loosening the clamping plate 9 to enable the tension springs 8 to contract, the tension springs 8 drive the clamping plate 9 and the racks 6 to move synchronously to one side near the axis of the limiting cylinder 11 through the connecting seat 91 until the clamping plate 9 clamps the gear ring, at the moment, the axle center of the gear ring is superposed with the axle center of the limiting cylinder 11, and simultaneously, the gear ring is superposed with the axle center of the sun gear,

and finally, arranging each planet pinion between the gear ring and the sun gear in a matching way to finish the fixation of the planet gear.

Through the movable fixed to the sun gear of dead lever 37, make the device can fix the sun gear of multiple diameter difference, application scope is wide, and the practicality is high.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.