CN219489370U

CN219489370U - Gear clamping device

Info

Publication number: CN219489370U
Application number: CN202223078674.2U
Authority: CN
Inventors: 王文刚; 刘康宁; 芦长杰; 高志超; 王洪昆; 边志宏; 王蒙; 丁颖; 王萌; 焦杨; 徐建喜; 马瑞峰; 张国彪
Original assignee: CHN Energy Railway Equipment Co Ltd
Current assignee: CHN Energy Railway Equipment Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-08-08
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a gear clamping device, and relates to the technical field of gear clamping. The gear clamping device comprises a lifting tool frame, wherein two chucks used for clamping gears are arranged on the lifting tool frame, a driving assembly is further arranged on the lifting tool frame, the driving assembly comprises two driving units respectively connected with the chucks, the driving assembly is used for driving the two chucks to move along the directions of approaching or separating from each other, and a power assembly used for synchronously driving the two driving units is further arranged on the lifting tool frame. The clamping device can automatically clamp and release clamping in the clamping process, does not need manual operation, and reduces the labor intensity.

Description

Gear clamping device

Technical Field

The utility model relates to the technical field of gear clamping, in particular to a gear clamping device.

Background

In the prior art, in the process of installing a gear on an axle of a railway alternating-current locomotive, an operator usually uses a crown block to hoist the gear, lifts the gear to a high altitude, sleeves the gear into the axle from top to bottom, aligns the gear with the axle by manually adjusting the posture of the gear, and finally abuts the gear with the axle. But the transportation, alignment and assembly of the axle gear of the railway alternating current locomotive are all carried out in a manual operation mode, and the crane is hoisted by using clamps with different specifications aiming at gears with different specifications, so that the clamping time is increased, and the assembly efficiency is reduced.

Disclosure of Invention

The utility model provides a gear clamping device which can be adapted to gears with different specifications, can realize automatic enclasping and can automatically release enclasping in the clamping process, does not need manual operation, and reduces the manual labor intensity.

The utility model provides a gear clamping device, which comprises a lifting tool frame, wherein two chucks used for clamping gears are arranged on the lifting tool frame, a driving assembly is further arranged on the lifting tool frame, the driving assembly comprises two driving units respectively connected with the chucks, the driving assembly is used for driving the two chucks to move along the directions of approaching or separating from each other, and a power assembly used for synchronously driving the two driving units is further arranged on the lifting tool frame.

In one embodiment, the driving unit comprises a screw rod and a screw nut, wherein the screw nut is arranged on the chuck, one end of the screw rod is rotatably arranged on the lifting tool frame, and the other end of the screw rod is matched with the screw nut. Through this embodiment, lead screw and nut cooperation are used for driving two chucks and can follow the direction that is close to each other or keep away from each other and remove, change the interval between two chucks to can improve holding power for two chucks, make two chucks remove to arbitrary position and keep motionless, thereby can realize the clamp of the gear to different external diameter specifications.

In one embodiment, the power assembly comprises a transmission shaft rotatably arranged on the lifting tool frame, the transmission shaft is connected with a driving motor, and two ends of the transmission shaft are respectively in driving connection with the two driving units. Through this embodiment, under the effect of a driving motor, drive two drive units work, can make two chucks synchronous motion to guarantee that the axis of the gear of two chuck centre gripping is located intermediate position all the time, avoid the axis skew of gear, inconvenient and the bearing alignment, and lead to can not installing the gear on the axletree smoothly.

In one embodiment, the two ends of the transmission shaft are respectively provided with a first sprocket, one end of the screw rod, which is far away from the chuck, is sleeved with a second sprocket, and the two first sprockets are respectively connected with the two second sprockets on the screw rod through chains. Through this embodiment, drive the lead screw through sprocket and chain's mode and rotate, guarantee the stability in the transmission process.

In one embodiment, the chuck is further provided with at least one guide shaft, the hanger frame is provided with a guide hole corresponding to the guide shaft, and one end of the guide shaft, far away from the chuck, penetrates through the guide hole. In this embodiment, the chuck is guided by the guide shaft, and is allowed to move only in the axial direction of the guide shaft.

In one embodiment, the chuck is provided with two guide shafts, and the two guide shafts are respectively positioned at two sides of the driving unit. Through this embodiment, through setting up two guiding axles, the guiding axle can also play the supporting role in the time of playing the guiding role, guarantees that the atress of two guiding axles is even.

In one embodiment, the axes of the two guide shafts are equidistant from the drive unit.

In one embodiment, the hanger frame comprises at least two cross beams which are arranged and distributed along the same direction and side guard plates positioned at two ends of the cross beams, and the driving assembly is arranged on the side guard plates. Through this embodiment, make the transmission shaft install on the crossbeam, the chuck is installed on the side guard plate, guarantees that two chucks can not receive the interference at the in-process that removes.

In one embodiment, the number of the cross beams is two, and the distance between the two cross beams is larger than the inner diameter of the gear, so that the axle can penetrate the space between the two cross beams when the gear is mounted on the axle. Through this embodiment, when installing the gear on the axletree, the tip of bearing can run through the space between two crossbeams to guarantee can install the gear on the axletree arbitrary height, avoid axletree and crossbeam to take place to interfere.

In one embodiment, two ends of the two chucks are bent inwards along the direction of approaching each other to form the retaining part. According to the embodiment, the protecting part can be in contact with the outer wall of the gear, so that the contact surface is increased, and the clamping stability is improved.

Compared with the prior art, the clamping device has the advantages that the two chucks can move in opposite directions close to or far from each other, so that gears with different outer diameter specifications can be clamped, and the application range is improved; the two chucks move synchronously, when gears with different outer diameter specifications are clamped, the axes of all the gears are guaranteed to be positioned on the same straight line, so that the gears can be conveniently mounted on an axle, and the position of a lifting tool frame does not need to be debugged each time.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.

FIG. 1 is a schematic front view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

fig. 3 is a schematic side view of the present utility model.

Reference numerals:

10. a gear; 21. a cross beam; 22. a side guard plate; 30. a chuck; 41. a screw rod; 42. a nut; 51. a transmission shaft; 511. a first sprocket; 512. a second sprocket; 52. a driving motor; 60. and a guide shaft.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a gear 10 clamping device, which comprises a lifting tool frame, wherein two chucks 30 for clamping a gear 10 are arranged on the lifting tool frame, a driving assembly is further arranged on the lifting tool frame, the driving assembly comprises two driving units respectively connected with the chucks 30, the driving assembly is used for driving the two chucks 30 to move along the directions of approaching or separating from each other, and a power assembly for synchronously driving the two driving units is further arranged on the lifting tool frame.

Specifically, the two chucks 30 are symmetrically disposed about the center line position of the hanger frame, the two chucks 30 are moved in directions approaching each other to effect clamping of the gear 10, and the two chucks 30 are moved in directions moving away from each other to effect unclamping of the gear 10. Before the gear 10 is mounted on the bearing, the axle is vertically placed, the horizontal direction of the gear 10 and the axis of the bearing are parallel to the idle direction of the gear 10, in the mounting process, the gear 10 is firstly placed in a space between the two chucks 30, at the moment, the gear 10 is not required to be precisely placed in the middle position of the two chucks 30, even if the gear 10 is deviated to one chuck 30, when the two chucks 30 clamp the gear 10, the gear 10 can be always positioned in the middle position, then the gear 10 is lifted and moved to the upper side of the axle through the lifting tool frame, then the gear 10 is downwards moved, and the gear 10 is sleeved on the bearing. Further, during the process of clamping the gear 10 by the chuck 30, the gear 10 may be placed in a groove, and the width of the groove is the same as the outer diameter of the gear 10, that is, the gear 10 is ensured not to deviate in the lateral direction.

In one embodiment, the driving unit includes a screw 41 and a nut 42, the nut 42 is provided on the chuck 30, one end of the screw 41 is rotatably provided on the hanger frame, and the other end is engaged with the nut 42. According to the embodiment, the screw rod and the nut 42 are matched to drive the two chucks 30 to move along the directions of approaching or separating from each other, the distance between the two chucks 30 is changed, the supporting force can be improved for the two chucks 30, the two chucks 30 can be moved to any position and kept still, and therefore the gears 10 with different outer diameter specifications can be clamped.

Specifically, the nut 42 is mounted on the chuck 30, and the nut 42 is rotatable relative to the chuck 30.

In one embodiment, the power assembly comprises a transmission shaft 51 rotatably arranged on the hanger frame, the transmission shaft 51 is connected with a driving motor 52, and two ends of the transmission shaft 51 are respectively in driving connection with two driving units. Through this embodiment, under the effect of one driving motor 52, two driving units are driven to work, so that two chucks 30 can move synchronously, thereby ensuring that the axis of the gear 10 clamped by the two chucks 30 is always located at the middle position, avoiding the offset of the axis of the gear 10, being inconvenient to align with the bearing, and resulting in the failure of smoothly installing the gear 10 on the axle.

Specifically, the hanger frame is of a hollow structure, a bearing seat is arranged in the hanger frame, a transmission shaft 51 is arranged on the bearing seat, chain wheels are arranged at two ends of the transmission shaft 51, a double-row chain wheel is arranged on one side, close to a driving motor 52, of the transmission shaft 51, a chain wheel is sleeved on an output shaft of the driving motor 52, and the chain wheel on the driving motor 52 is connected with the double-row chain wheel through a chain. Namely, the driving motor 52 drives the transmission shaft 51 to rotate, and the transmission shaft 51 drives the two screw rods 41 to synchronously rotate through chains on two sides.

In one embodiment, the two ends of the transmission shaft 51 are respectively provided with a first sprocket 511, one end of the screw 41 away from the chuck 30 is sleeved with a second sprocket 512, and the two first sprockets 511 are respectively connected with the second sprockets 512 on the two screw 41 through chains. By the aid of the embodiment, the screw 41 is driven to rotate in a sprocket and chain mode, and stability in a transmission process is guaranteed.

In one embodiment, the chuck 30 is further provided with at least one guide shaft 60, the hanger frame is provided with a guide hole corresponding to the guide shaft 60, and one end of the guide shaft 60 away from the chuck 30 penetrates through the guide hole. In the present embodiment, the guide shaft 60 guides the chuck 30, so that the chuck 30 can move only along the axial direction of the guide shaft 60.

Specifically, a linear bearing is provided in the guide hole, so that the guide shaft 60 can smoothly move in the axial direction.

In one embodiment, two guide shafts 60 are provided on the chuck 30, and the two guide shafts 60 are located at both sides of the driving unit, respectively. Through this embodiment, through setting up two guiding axle 60, guiding axle 60 can also play the supporting role in the time of playing the guiding role, guarantees that the atress of two guiding axle 60 is even.

In one embodiment, the axes of the two guide shafts 60 are equidistant from the drive unit.

Specifically, the axes of the guide shafts 60 and the axis of the screw 41 are parallel to each other, the two guide shafts 60 are located on both sides of the screw, and the distances from the axes of the two guide shafts 60 to the axis of the screw 41 are equal.

In one embodiment, the hanger frame comprises at least two beams 21 arranged in the same direction and side guard plates 22 at both ends of the beams 21, and the driving assembly is arranged on the side guard plates 22. In this embodiment, the transmission shaft 51 is mounted on the beam 21, and the chucks 30 are mounted on the side guard 22, so that the two chucks 30 are not interfered during the movement.

Specifically, the upper ends of the side shields 22 are integrally connected to the ends of all the ends of the cross members 21, and the driving motor 52 is mounted on the side shields 22, and the supporting force is provided to the driving motor 52 by the side shields 22.

In one embodiment, the number of beams 21 is two, the distance between the two beams 21 being greater than the inner diameter of the gear 10, so that the axle can penetrate the space between the two beams 21 when the gear 10 is mounted on the axle. With the present embodiment, when the gear 10 is mounted on the axle, the end portions of the bearings can penetrate the space between the two cross beams 21, thereby ensuring an arbitrary height at which the gear 10 can be mounted on the axle, avoiding interference between the axle and the cross beams 21.

In one embodiment, the two ends of the two chucks 30 are bent inward in a direction approaching each other to form the holding portion. According to the present embodiment, the holding portion can be in contact with the outer wall of the gear 10, the contact surface is increased, and the holding stability is improved.

Specifically, the two chucks 30 include a tight-against surface on one side where they are close to each other, and an inclined retaining surface is provided on both sides of the tight-against surface, when the outer diameter of the gear 10 is smaller than the width of the tight-against surface, the gear 10 will not contact with the retaining surface during the process of clamping the gear 10, when the outer diameter of the gear 10 is larger than the tight-against surface, the outer edge of the gear 10 contacts with the tight-against surface, and the larger the outer diameter of the gear 10, the more the position where the gear 10 contacts with the tight-against surface is away from the tight-against surface.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. The utility model provides a gear clamping device, its characterized in that, includes the hoist frame, be provided with two on the hoist frame and be used for right the chuck that the gear is pressed from both sides tightly, still be provided with drive assembly on the hoist frame, drive assembly include two respectively with the drive unit that the chuck is connected, drive assembly is used for driving two the chuck can follow the direction that is close to each other or keeps away from each other and remove, still be provided with on the hoist frame and be used for synchronous drive two drive unit's power component.

2. The gear clamping device according to claim 1, wherein the driving unit comprises a screw rod and a screw nut, the screw nut is arranged on the chuck, one end of the screw rod is rotatably arranged on the lifting frame, and the other end of the screw rod is matched with the screw nut.

3. The gear clamping device according to claim 2, wherein the power assembly comprises a transmission shaft rotatably arranged on the lifting tool frame, the transmission shaft is connected with a driving motor, and two ends of the transmission shaft are respectively in driving connection with the two driving units.

4. A gear clamping device according to claim 3, wherein first chain wheels are respectively arranged at two ends of the transmission shaft, a second chain wheel is sleeved at one end of the screw rod far away from the chuck, and the two first chain wheels are respectively connected with the second chain wheels on the two screw rods through chains.

5. The gear clamping device according to claim 1, wherein the chuck is further provided with at least one guide shaft, the hanger frame is provided with a guide hole corresponding to the guide shaft, and one end of the guide shaft away from the chuck penetrates through the guide hole.

6. The gear clamping device according to claim 5, wherein two guide shafts are provided on the chuck, the two guide shafts being located on both sides of the driving unit, respectively.

7. The gear clamping device according to claim 6, wherein the axes of the two guide shafts are equidistant from the drive unit.

8. The gear clamping device according to any one of claims 1-7, wherein the hanger frame comprises at least two cross beams arranged in the same direction and side guard plates at both ends of the cross beams, and the driving assembly is arranged on the side guard plates.

9. The gear clamping device of claim 8 wherein the number of said cross beams is two and the distance between two of said cross beams is greater than the inner diameter of said gear so that the axle can extend through the space between two of said cross beams when said gear is mounted to the axle.

10. The gear clamping device according to any one of claims 1 to 7, wherein both ends of the two chucks are bent inward in a direction approaching each other to form a retaining portion.