CN213498929U

CN213498929U - Clutch pressing tool

Info

Publication number: CN213498929U
Application number: CN202022233142.6U
Authority: CN
Inventors: 王清华; 李广磊; 王英喆; 柳平平
Original assignee: Bafang Electric Suzhou Co Ltd
Current assignee: Bafang Electric Suzhou Co Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-22
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a press clutch frock, it relates to motor assembly technical field. The key points of the technical scheme comprise: a supporting seat; the elastic support component is borne on the support seat and used for supporting the clutch in the vertical direction and limiting the clutch in the horizontal direction; the positioning boss is borne on the supporting seat and used for supporting the bearing in the vertical direction; the positioning boss is provided with a positioning hole matched with the positioning pin, and the positioning pin is used for limiting the bearing in the horizontal direction and expanding the clamp spring; and the elastic buffer assembly is borne in the supporting seat and supports the positioning pin in the vertical direction. The utility model discloses can realize the assembly of bearing and jump ring simultaneously to can practice thrift the cost, reduce the assembly process, improve work efficiency.

Description

Clutch pressing tool

Technical Field

The utility model relates to a motor assembly technical field, more specifically say, it relates to a press clutch frock.

Background

An existing product is a component in a motor of a power-assisted bicycle, and specifically includes a clutch 11, a rotating shaft 12 arranged on the clutch 11, a gear 14 provided with a bearing 15, and a snap spring 16, as shown in fig. 1, wherein a snap groove 13 matched with the snap spring 16 is arranged on the rotating shaft 12. During the assembly of this product, need on the pivot 12 with bearing 15 suit, then with jump ring 16 suit to draw-in groove 13 in, wherein bearing 15 is interference fit with pivot 12, and jump ring 16 need expand after just can overlap on the pivot 12, then move to embedding draw-in groove 13 in.

The assembly of above-mentioned product needs to adopt the frock, exists the frock of pressure equipment bearing alone among the prior art, also has the frock of assembling the jump ring alone, but few assemble the frock of bearing and jump ring simultaneously.

For example, the existing chinese patent with the publication number CN104084932B discloses a device for clamping a snap spring with a motor shaft, which comprises a device body, a workbench and a stand column, wherein the stand column is arranged on the workbench and used for supporting the device body, the workbench is provided with a positioning seat for placing the motor shaft with an outer rotor and a snap spring groove arranged on the circumference of the shaft, the device body comprises a transmission mechanism arranged in a device shell and a tool connecting seat driven by the transmission mechanism to move axially, and the tool connecting seat is connected with a snap spring clamping tool for axially installing the snap spring into the snap spring groove of the motor shaft; the device can replace the manual work and use jump ring pincers to accomplish jump ring joint process, realizes blocking the jump ring axial to the jump ring groove of motor shaft.

The device in the above patent can be with the jump ring joint to the jump ring inslot of motor shaft, but obviously can't accomplish the pressure equipment of bearing simultaneously.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a press clutch frock, its assembly that can realize bearing and jump ring simultaneously to can practice thrift the cost, reduce the assembly process, improve work efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a pressure clutch tool, comprising:

a supporting seat;

the elastic support component is borne on the support seat and used for supporting the clutch in the vertical direction and limiting the clutch in the horizontal direction;

the positioning boss is borne on the supporting seat and used for supporting the bearing in the vertical direction;

the positioning boss is provided with a positioning hole matched with the positioning pin, and the positioning pin is used for limiting the bearing in the horizontal direction and expanding the clamp spring; and the number of the first and second groups,

and the elastic buffer assembly is borne in the supporting seat and vertically supports the positioning pin.

Furthermore, the elastic support assembly comprises a support column capable of moving in the vertical direction relative to the support seat, a first movable cavity matched with the support column is arranged in the support seat, and a first spring in contact with the bottom end of the support column is arranged in the first movable cavity.

Further, the top end of the support column is provided with an embedded section matched with the clutch.

Furthermore, the side wall of the supporting column is provided with a first limiting bulge, and a limiting spigot matched with the first limiting bulge is arranged in the first movable cavity.

Further, the locating pin includes first post section, round platform section and the second post section that connects gradually, wherein the diameter of first post section is greater than the diameter of second post section.

Furthermore, the elastic buffering assembly comprises a positioning column which can move along the vertical direction relative to the supporting seat, a second movable cavity matched with the positioning column is arranged in the supporting seat, and a second spring in contact with the bottom end of the positioning column is arranged in the second movable cavity.

Furthermore, a positioning groove matched with the second section is formed in the top end of the positioning column.

Furthermore, one end, far away from the circular table section, of the second section is provided with a guide inclined plane.

Furthermore, a limiting cylinder embedded into the second movable cavity is arranged at the bottom end of the positioning boss, the positioning column is embedded into the limiting cylinder, and a second limiting bulge capable of contacting with the end wall of the limiting cylinder is arranged on the side wall of the positioning column.

To sum up, the utility model discloses following beneficial effect has:

1. the positioning pin is adopted to horizontally limit the bearing, and the circular platform section on the positioning pin can expand the clamp spring, so that the bearing and the clamp spring can be simultaneously installed on the rotating shaft, the cost can be saved, the assembly process can be reduced, and the working efficiency can be improved;

2. be provided with on the reference column with locating pin complex constant head tank to can carry out level spacing to the locating pin, guarantee its stability.

Drawings

FIG. 1 is a schematic structural diagram of a product in the prior art;

FIG. 2 is a schematic view of the overall structure of the pressure clutch tooling in the embodiment;

FIG. 3 is a cross-sectional view of an embodiment of a pressure clutch tooling;

FIG. 4 is a schematic structural view of a positioning pin according to an embodiment.

In the figure: 11. a clutch; 12. a rotating shaft; 13. a card slot; 14. a gear; 15. a bearing; 16. a clamp spring; 2. a supporting seat; 21. a first movable chamber; 22. a second movable chamber; 3. a support pillar; 31. an embedding section; 32. a first limit protrusion; 4. positioning the boss; 41. positioning holes; 42. a limiting cylinder; 5. positioning pins; 51. a first column section; 52. a circular table section; 53. a second column section; 531. a guide slope; 6. a positioning column; 61. positioning a groove; 62. a second limit bulge; 7. a first spring; 8. a second spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

a clutch pressing tool is disclosed, referring to fig. 1 to 3, and comprises a supporting seat 2, an elastic supporting assembly, a positioning boss 4, a positioning pin 5 and an elastic buffering assembly; the elastic support assembly is used for supporting the clutch 11 in the vertical direction and limiting the clutch in the horizontal direction; the positioning boss 4 is used for supporting the bearing 15 in the vertical direction, the positioning pin 5 is used for limiting the bearing 15 in the horizontal direction, and meanwhile, the positioning pin 5 is used for flaring the clamp spring 16; the elastic buffer assembly is used for supporting the positioning pin 5 in the vertical direction.

Referring to fig. 3, the elastic support assembly includes a support pillar 3 capable of moving in a vertical direction relative to the support seat 2, a first movable cavity 21 is provided in the support seat 2, and the first movable cavity 21 is provided with a first spring 7 contacting with a bottom end of the support pillar 3; the top end of the support column 3 is provided with an embedded section 31 matched with a middle mounting hole of the clutch 11, so that the clutch 11 is vertically supported and horizontally limited; the lateral wall of the support column 3 is provided with a first limit bulge 32, a limit spigot matched with the first limit bulge 32 is arranged in the first movable cavity 21, and the first limit bulge 32 and the limit spigot are matched to prevent the support column 3 from being separated from the top opening of the first movable cavity 21.

Referring to fig. 1 to 4, the positioning pin 5 includes a first column section 51, a circular truncated cone section 52 and a second column section 53 connected in sequence, wherein the diameter of the first column section 51 is larger than that of the second column section 53; a positioning hole 41 matched with the positioning pin 5 is formed in the middle of the positioning boss 4, and the first column section 51 and the positioning hole 41, and the first column section 51 and the bearing 15 are matched by a small gap (0.01-0.5 mm), so that the positioning boss 4 and the positioning pin 5 are matched to realize vertical support and horizontal limit of the bearing 15; the diameter of the second column section 53 is smaller than or equal to the inner diameter of the clamp spring 16 in the natural state, and the diameter of the first column section 51 is larger than the inner diameter of the clamp spring 16 in the natural state, in this embodiment, the clamp spring 16 is gradually flared through the circular truncated cone section 52, when the clamp spring 16 is sleeved on the first column section 51, the inner diameter of the clamp spring 16 is still smaller than the diameter of the rotating shaft 12, but the difference between the two is very small, and the rotating shaft 12 can penetrate through the clamp spring 16 after continuously expanding the clamp spring 16.

Referring to fig. 3 and 4, the elastic buffer assembly includes a positioning column 6 capable of moving in a vertical direction relative to the supporting seat 2, a second movable cavity 22 matched with the positioning column 6 is arranged in the supporting seat 2, and a second spring 8 contacting with the bottom end of the positioning column 6 is arranged in the second movable cavity 22; the top end of the positioning column 6 is provided with a positioning groove 61 matched with the second column section 53, so that the elastic buffer assembly can horizontally limit the positioning pin 5 and ensure the stability of the positioning pin; the second column section 53 is provided with a guide slope 531 at an end thereof remote from the circular table section 52, so that the positioning pin 5 is easily inserted into the positioning groove 61.

Referring to fig. 2 and 3, the bottom end of the positioning boss 4 is provided with a limiting cylinder 42 embedded in the second movable cavity 22, the positioning column 6 is embedded in the limiting cylinder 42, and the side wall of the positioning column 6 is provided with a second limiting protrusion 62 capable of contacting with the bottom end of the limiting cylinder 42.

The working principle is as follows:

sleeving the clamp spring 16 on the positioning pin 5 from the end part of the second column section 53, then embedding the positioning pin 5 into the positioning hole 41, so that the clamp spring 16 is in contact with the top end of the positioning boss 4, and the second column section 53 is embedded into the positioning groove 61; in the embodiment, the support seat 2 is provided with three positioning bosses 4, so that the assembly of the positioning pin 5 and the clamp spring 16 is completed in sequence; then, the three gears 14 provided with the bearings 15 are respectively sleeved on the first column sections 51, and the bottom ends of the bearings 15 are in contact with the clamp springs 16, so that the bearings 15 are vertically supported and horizontally limited; then, sleeving the clutch 11 on the embedding section 31, and adjusting the angle of the clutch 11 to enable the rotating shaft 12 to be opposite to the positioning pin 5; finally, the clutch 11 is pressed downwards through equipment, and the rotating shaft 12 is in contact with the positioning pin 5 to push the positioning pin 5 to move downwards to overcome the elastic force of the second spring 8; gradually flaring the clamp spring 16 through the circular platform section 52 in the downward movement process of the positioning pin 5, and enabling the clamp spring 16 to be sleeved on the first column section 51; during the downward movement of the rotating shaft 12, the rotating shaft firstly passes through the bearing 15 and then passes through the clamp spring 16, and after the clamp spring 16 is automatically embedded into the clamping groove 13, the assembly of the bearing 15, the clamp spring 16 and the rotating shaft 12 is completed; in this embodiment, after the snap spring 16 is embedded in the snap groove 13, the limiting ring on the rotating shaft 12 contacts with the top end of the bearing 15, and the rotating shaft 12 will not move downward.

Claims

1. The utility model provides a press clutch frock which characterized in that: the method comprises the following steps:

a supporting seat;

2. The pressure clutch frock of claim 1, characterized in that: the elastic support assembly comprises a support column capable of moving in the vertical direction relative to the support seat, a first movable cavity matched with the support column is arranged in the support seat, and a first spring in contact with the bottom end of the support column is arranged in the first movable cavity.

3. The pressure clutch frock of claim 2, characterized in that: the top end of the support column is provided with an embedded section matched with the clutch.

4. The pressure clutch frock of claim 2, characterized in that: the support column lateral wall is provided with first spacing arch, be provided with in the first activity intracavity with first spacing protruding complex spacing tang.

5. The pressure clutch tool according to any one of claims 1 to 4, characterized in that: the locating pin is including the first post section, round platform section and the second post section that connect gradually, wherein the diameter of first post section is greater than the diameter of second post section.

6. The pressure clutch frock of claim 5, characterized in that: the elastic buffering assembly comprises a positioning column which can move in the vertical direction relative to the supporting seat, a second movable cavity matched with the positioning column is arranged in the supporting seat, and a second spring in contact with the bottom end of the positioning column is arranged in the second movable cavity.

7. The pressure clutch frock of claim 6, characterized in that: and the top end of the positioning column is provided with a positioning groove matched with the second column section.

8. The pressure clutch frock of claim 7, characterized in that: and a guide inclined plane is arranged at one end of the second column section, which is far away from the circular table section.

9. The pressure clutch frock of claim 6, characterized in that: the bottom end of the positioning boss is provided with a limiting cylinder embedded in the second movable cavity, the positioning column is embedded in the limiting cylinder, and the side wall of the positioning column is provided with a second limiting bulge capable of contacting with the end wall of the limiting cylinder.