CN218971573U

CN218971573U - Radial expansion device for retainer ring

Info

Publication number: CN218971573U
Application number: CN202222509278.4U
Authority: CN
Inventors: 周茂荣; 侯京森; 李娇; 孙伟栋; 梅盛开
Original assignee: Heavy Truck Jinan Transmission Shaft Co ltd
Current assignee: Heavy Truck Jinan Transmission Shaft Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-05-05
Anticipated expiration: 2032-09-22

Abstract

In order to solve the problem that the expanding radius and the expanding force of the retainer ring expanding device are smaller, the utility model provides a radial retainer ring expanding device, which comprises: fixed plate, fork arm, collude board device and cylinder, be provided with the first rectangular hole of multiunit along circumferencial direction distribution on the fixed plate, collude board device and link to each other with fork arm middle part and both ends through rotating the piece to collude board device and can follow first rectangular hole and slide, cylinder piston rod one end links to each other with fork arm middle part, and cylinder action drives fork arm and moves to the outside, thereby drives fork arm and moves along first rectangular hole, finally drives the retaining ring to strut to the outside, accomplishes radial expansion to the retaining ring, and whole device structure convenient assembling, work efficiency is high.

Description

Radial expansion device for retainer ring

Technical Field

The utility model relates to the technical field of pneumatic expanding devices, in particular to a check ring radial expanding device.

Background

The pneumatic stretching mechanism is an actuating device which mainly uses compressed air as power and is used for clamping or stretching products, so that the efficiency and the working safety can be effectively improved, and the energy is saved. Most of the existing expanding mechanisms are small in expanding force, for radial expanding, most of the mechanisms are assembled with conical centers by adopting cylinder piston rods, the conical centers are matched with conical grooves, the conical grooves are gradually and deeply matched with each other, the conical grooves are diffused to the periphery, and the effect of radial stretching is achieved.

Disclosure of Invention

In order to solve the problems, the utility model provides a radial expanding device for a check ring, which adopts the following technical scheme:

a radial spreading device for a retainer ring, comprising:

the fixing plate is provided with a plurality of groups of first strip holes which are distributed at intervals with a certain included angle along the circumferential direction, the lengths of the first strip holes are distributed along the circumferential radial direction, the first strip holes vertically penetrate through the fixing plate and are distributed, and first sliding parts which are connected in a sliding mode along the length direction are arranged in the first strip holes;

the fork arms are of L-shaped structures, two groups of fork arms are symmetrically arranged on the lower end face of the fixed plate, second strip holes penetrating up and down are formed in the two ends of the fork arms, the lengths of the second strip holes are distributed along the length directions of the two arms of the fork arms, second sliding parts are arranged in the second strip holes and are connected in a sliding mode along the length directions of the second strip holes, and the first strip holes and the second strip holes are arranged at a certain included angle;

the hook plate devices are provided with a plurality of groups and are respectively distributed corresponding to the first strip holes, each hook plate device consists of a hook plate, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are respectively positioned above and below the fixed plate, the hook plate is fixedly connected to the inner end above the first connecting plate, a first rotating piece is fixedly connected between the first connecting plate and the second connecting plate, and the first rotating piece is fixedly connected with the first sliding piece and can be slidably connected inside the first strip holes along with the first sliding piece;

the upper end and the lower end of the second rotating piece are fixedly connected with the first connecting plate and the middle part of the fork arm respectively, the second rotating piece is fixedly connected with the first sliding piece and can be slidably connected with the first sliding piece in the first strip hole, the four groups of hook plate devices connected with the two ends of the fork arm are also provided with third rotating pieces, the upper ends of the third rotating pieces are fixedly connected with the first connecting plate, sequentially penetrate through the first sliding piece, the second connecting plate and the second sliding piece from top to bottom, and the third rotating pieces are rotationally connected with the first sliding piece and the second sliding piece;

the cylinder, the cylinder is provided with two sets of, and two sets of cylinder bodies are all through cylinder support fixed connection in the fixed plate below, and cylinder piston rod one end outside distributes and through piston rod support and fork arm middle part fixed connection, and cylinder piston rod action drives fork arm and collude the board device and follow first rectangular hole length direction and remove.

Preferably, the first sliding part and the second sliding part at the hook plate device connected with the two ends of the fork arm are needle bearings, and the first rotating part, the second rotating part and the third rotating part are rotationally connected with the needle bearings.

Preferably, washers are fixedly connected to the outer sides of the first rotating member, the second rotating member and the third rotating member coaxially, and the washers are connected with the inner ring of the needle bearing coaxially in a rotating manner.

The utility model has the beneficial effects that:

1. the fork arms and the hook plate are driven to move outwards by the air cylinder, so that the retainer ring is tensioned, radial expansion of the retainer ring is realized, and the radial expansion of different annular parts can be realized;

2. the hook plate devices connected to the two ends of the fork arms can move along the length direction of the strip holes of the fixed plate, the multiple groups of hook plate devices rotate outwards along the circumferential direction, the stress of the retainer ring is more balanced, the forming quality of the parts is effectively improved, the strip hole structures and the positions on the fork arms are designed, the positions among the parts are conveniently adjusted, and the installation and adjustment of the integral structure are convenient.

Drawings

FIGS. 1 and 2 are schematic views of the structure of the present utility model

FIG. 3 is a top view of the structure of the present utility model

FIG. 4 is a cross-sectional view of A-A

FIG. 5 is a top view of the fixing plate structure

Wherein: the device comprises a fixing plate, a first long strip hole, a first sliding piece, a 2-fork arm, a second long strip hole, a 202-second sliding piece, a 3-first connecting plate, a 4-hook plate, a 5-second connecting plate, a 6-first rotating piece, a 7-second rotating piece, a 8-third rotating piece, a 9-gasket, a 10-nut, an 11-cylinder, a 12-cylinder bracket and a 13-piston rod bracket.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the direction of travel or positional relationships of the vehicle, are merely for convenience in describing the utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

The retainer radial expanding device shown in fig. 1-5 comprises a fixed plate 1, fork arms 2, a hook plate device and an air cylinder 12.

Six groups of first strip holes 101 penetrating through the fixing plate 1 vertically are formed in the fixing plate 1, the six groups of first strip holes 101 are uniformly distributed in the circumferential direction by taking the center of the fixing plate 1 as the center of a circle, two adjacent groups of first strip holes 101 are distributed at intervals of 60 degrees, the lengths of the first strip holes 101 of each group are distributed along the radial direction, two first sliding parts 102 are arranged in the first strip holes 101, and the first sliding parts 102 can slide along the length direction of the first strip holes 101.

The fork arm 2 is L-shaped plate-shaped structure, second strip holes 201 are respectively formed in two ends of the fork arm 2, the lengths of the second strip holes 201 are distributed along the respective length directions of two arms of the L-shaped plate, second sliding pieces 202 are arranged in the second strip holes 201, the second sliding pieces 202 can slide along the length directions of the second strip holes 201, two groups of fork arms 2 are symmetrically arranged below the fixed plate 1 left and right, the middle parts and two ends of the fork arms 2 are located below the first strip holes 101, and an included angle is formed between the second strip holes 201 and the first strip holes 101.

The hook plate device is provided with six groups, respectively corresponds with six groups of first rectangular holes 101 and distributes, specifically, two groups of hook plate device link to each other with the middle part of two fork arms 2 respectively, four groups of hook plate device link to each other with the both ends of two fork arms 2 respectively, every group of hook plate device by first connecting plate 3, hook plate 4 and second connecting plate 5 constitute, first connecting plate 3 is located fixed plate 1 up end, its length distributes along first rectangular hole 101 length direction, hook plate 4 fixed connection is in the inboard one end in first connecting plate 3 top.

The cylinder 12 is positioned below the fixed plate 1, the cylinder body of the cylinder 12 is fixedly connected with the lower end surface of the fixed plate 1 through a cylinder bracket 13, and the piston rod of the cylinder 12 is fixedly connected with the hook plate device through a piston rod bracket 14.

In addition, a first rotating member 6 is disposed between the first connecting plate 3 and the second connecting plate 5 on the six sets of hook plate devices, the upper end of the first rotating member 6 is fixedly connected with the first connecting plate 3, and the first rotating member 6 passes through the first sliding member 102 located at the inner side from top to bottom and is fixedly connected with the second connecting plate 5, in this embodiment, through holes which are correspondingly distributed and vertically run through are disposed at the middle parts of the piston rod bracket 14 and the fork arm 2, and the lower end of the first rotating member 6 of the hook plate device connected with the middle part of the fork arm 2 stretches into the through holes of the fork arm 2 and the piston rod bracket 14; a second rotating piece 7 is connected between the two groups of hook plate devices connected with the middle part of the fork arm 2 and the middle part of the fork arm 2, the upper end of the second rotating piece 7 is fixedly connected with the first connecting plate 3, and the lower end of the second rotating piece passes through the first sliding piece 102 and the second connecting plate 5 which are positioned at the outer side from top to bottom and then is fixed with the middle part of the fork arm 2 through a nut 10; a third rotating piece 8 is connected between four groups of hook plate devices connected with two ends of the fork arms 2 and the ends of the fork arms 2 which are correspondingly distributed, the upper end of the third rotating piece 8 is fixedly connected with the first connecting plate 3, and the lower end of the third rotating piece 8 sequentially passes through the first sliding piece 102, the second connecting plate 5 and the second sliding piece 202 which are positioned at the outer side from top to bottom and then is connected with the second sliding piece 202; in this embodiment, the first rotating member 6, the second rotating member 7 and the third rotating member 8 all adopt bolts, a washer 9 is disposed between the bolts and the first sliding member 102 and the second sliding member 202, the bolts are fixedly connected with the washer 9 coaxially, and the washer 9 is rotatably connected with the first sliding member 102 and the second sliding member 202 coaxially, so as to improve the stability of the rotation relationship.

The working principle of the device is as follows: the retaining ring is placed in the inner of colluding board 4, cylinder 12 action drives fork arm 2 outside horizontal migration, at this moment, needle bearing 9 at fork arm 2 both ends receives first rectangular hole 101 spacing, can only follow first rectangular hole 101 length direction outside tilting movement, consequently, six group collude board devices and move to keeping away from centre of a circle direction simultaneously to collude board 4 with the radial pulling up of retaining ring, collude board devices through the multiunit and move radially expanding the retaining ring outward simultaneously, the retaining ring atress is even, the atress size can be adjusted fast through the cylinder, component shaping quality and work efficiency have effectively been improved.

The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that modifications may be made without departing from the principles of the utility model, and such modifications are intended to be within the scope of the utility model.

Claims

1. A radial spreading device for a retainer ring, comprising:

2. The radial expansion device of claim 1, wherein the first and second sliding members at the hook plate assembly connected to the two ends of the fork arm are needle bearings, and the first, second and third rotating members are rotatably connected to the needle bearings.

3. The radial expansion device of claim 2, wherein washers are fixedly connected to the outer sides of the first, second and third rotating members, and the washers are rotatably connected to the inner ring of the needle bearing.