CN219075531U - Shaft type does not have ear snap ring installation device - Google Patents

Abstract

The utility model provides a mounting device for an ear-free snap ring of a shaft, which comprises a guide piece and an abutting piece; the head end of the guide piece is provided with an otoless snap ring placing part, the otoless snap ring placing part comprises an otoless snap ring placing section, and the outer diameter of the otoless snap ring placing section is larger than that of the spline shaft; the abutting piece is sleeved on the guide piece and can slide along the guide piece; in the initial state, the earless snap ring placement part protrudes out of the head end of the abutting piece; the abutting piece comprises a pushing end part, a first mounting part and a connecting part for connecting the pushing end part and the first mounting part; the first installation part is positioned at the head end of the abutting piece and comprises an installation frame, a plurality of installation blocks circumferentially arranged on the guide piece and an elastic ring sleeved on the outer circumference of the installation block of the guide piece, and the tail end of the installation block is hinged with the installation frame; the shaft type earless snap ring installation device is simple and small in structure and convenient to operate, and can be installed by means of manual thrust only, so that the production cost of the assembly link is saved.

Description

Shaft type does not have ear snap ring installation device

Technical Field

The utility model relates to the field of automobile assembly, in particular to a shaft type earless snap ring mounting device.

Background

In the field of assembly and manufacture of automobile transfer cases, main reducers and Edrive assemblies, the installation of an ear-free clamping ring is often involved. In general, a working shaft (for example, a spline shaft 400) is provided with an ear-free snap ring receiving groove 410 surrounding the outer circumferential surface of the working shaft, and a servo cylinder press-fitting device is often required when the ear-free snap ring 420 is pressed into the working shaft. Although the existing press-fitting equipment is high in automation degree, the investment amount is relatively large, the equipment volume is large, the space of a production area is limited, and meanwhile, when the existing press-fitting equipment is adopted for carrying out the installation of the no-ear snap ring under the condition that the number of single-batch working shafts is small, frequent start and stop are needed, and the cost performance is low.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model is to provide an installation device for an ear-free collar of a shaft.

The utility model provides a mounting device for an ear-free snap ring of a shaft, which comprises a guide piece and an abutting piece; the head end of the guide piece is provided with an otoless snap ring placing part, the otoless snap ring placing part comprises an otoless snap ring parking section, and the external diameter of the otoless snap ring parking section is larger than that of the working shaft; the abutting piece is sleeved on the guide piece and can slide along the guide piece; in an initial state, the earless snap ring placement part protrudes out of the head end of the abutting piece; the abutting piece comprises a pushing end part, a first mounting part and a connecting part for connecting the pushing end part and the first mounting part; the first installation department is located the head end of butt spare, first installation department is including fixing mounting bracket, a plurality of circumference arrange in on the connecting portion the installation piece of guide and cover establish at the elastic ring of this guide installation piece outer circumference, the tail end of installation piece with the mounting bracket articulates.

Preferably, the otoless clasp placement portion further comprises an otoless clasp expansion section; the no-ear snap ring expansion section is positioned at the tail end of the no-ear snap ring parking section, and the outer diameter of the no-ear snap ring expansion section gradually increases from the tail end to the head end.

Preferably, the mounting device further comprises an elastic piece, a containing cavity for containing the elastic piece is formed in the guide piece, and two ends of the elastic piece are respectively abutted against the guide piece and the abutting piece.

Preferably, the guide member and the abutment member are further provided with a slide groove and a slider, respectively, the slide groove extending in the axial direction of the mounting device.

As described above, the utility model relates to a mounting device for an ear-free snap ring of a shaft, which is generally sleeved on a parking section of the ear-free snap ring with the outer diameter larger than that of a working shaft of a guide piece.

Drawings

FIG. 1 is a schematic view of an installation device for an ear-less collar of a shaft type according to the present utility model;

FIG. 2 is a schematic view of a part of an installation device for an ear-less collar of a shaft type according to the present utility model;

FIG. 3 is another schematic view of an installation apparatus for an ear-less collar of the present utility model;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic view of another part of an installation device for an ear-less collar of a shaft according to the present utility model.

Reference numerals illustrate:

100. a guide member; 110. an ear-free clasp placement section; 111. an ear-free clasp parking section; 112. an ear-free clasp expansion section; 120. a receiving chamber; 130. a chute; 200. an abutment; 210. a first mounting portion; 211. a mounting frame; 212. a mounting block; 2121. rotating the trunnion; 213. an elastic ring; 214. an annular groove; 220. a connection part; 230. pushing the end portion; 240. a slide block; 300. an elastic member; 400. a spline shaft; 410. an ear-free clasp accommodating groove; 420. there is no ear clip ring.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.

As shown in fig. 1-5, an embodiment of an installation device for an ear-less collar of a shaft type comprises a guide member 100 and an abutment member 200; the head end of the guide piece 100 is provided with an otoless snap ring placing part 110, the otoless snap ring placing part 110 comprises an otoless snap ring placing section 111, and the external diameter of the otoless snap ring placing section 111 is larger than that of the working shaft; the abutting piece 200 is sleeved on the guide piece 100 and can slide along the guide piece 100; in the initial state, the earless snap ring placement part 110 protrudes out of the head end of the abutment 200; the abutment 200 includes a push end 230, a first mounting portion 210, and a connecting portion 220 connecting the push end 230 and the first mounting portion 210; the first mounting portion 210 is located at the head end of the abutment member 200, and the first mounting portion 210 includes a mounting frame 211 fixed on the connecting portion 220, a plurality of mounting blocks 212 circumferentially arranged on the guide member 100, and an elastic ring 213 sleeved on the outer circumference of the mounting blocks 212 of the guide member 100, wherein the tail end of the mounting block 212 is hinged with the mounting frame 211. In this embodiment, the working shaft is a spline shaft 400, wherein, in operation, one end of the installation device, which is used to abut against the spline shaft 400, is in the head end direction, and one end, which is away from the direction of the spline shaft 400, is in the tail end direction.

Preferably, the earless clasp catcher 110 includes an earless clasp extension section 112 and an earless clasp parking section 111 connected to a head of the earless clasp extension section 112; the outer diameter of the expansion section 112 of the no-ear snap ring gradually increases from the tail part to the head part, and the outer diameter of the parking section 111 of the no-ear snap ring is larger than the outer diameter of the spline shaft 400; in the initial state, the earless snap ring placement portion 110 protrudes from the head end of the abutment 200.

Before working, the earless snap ring 420 needs to be sleeved on the earless snap ring parking section 111, and the specific process is as follows: the no-ear snap ring 420 is sleeved into the tail end of the no-ear snap ring expansion section 112 with smaller outer diameter, the no-ear snap ring 420 moves towards the head end direction of the no-ear snap ring expansion section 112, the inner diameter of the no-ear snap ring 420 is continuously enlarged until the no-ear snap ring 420 is finally positioned on the no-ear snap ring parking section 111, and at the moment, the inner diameter of the no-ear snap ring 420 is larger than the outer diameter of the spline shaft 400.

In operation, the head end of the guide member 100 is abutted against the end of the spline shaft 400, and the abutting member 200 is pushed from the tail end toward the head end, so that the first mounting portion 210 pushes the otoless snap ring 420 to move into the otoless snap ring accommodating groove 410. After the first installation portion 210 pushes the otoless snap ring to move onto the spline shaft 400, the tail end of the installation block 212 of the first installation portion 210 is hinged to the installation frame 211, the annular inner diameter of the installation block 212, which is surrounded by the installation blocks 212, is reduced under the action of the annular elastic ring 213, and the inner side wall at the head end of the installation block 212 is clung to the spline shaft 400 to continuously push the otoless snap ring 420 to move to the otoless snap ring accommodating groove 410.

In this embodiment, the elastic ring 213 may be made of a rubber material. The shaft type earless snap ring installation device is simple in structure and convenient to operate, and can be installed by means of manual thrust only, so that production cost of the assembly link is saved. It should be noted that, the head end of the abutment member 200 of the mounting device in fig. 3 and 4 is already in a state of abutting against the working shaft 400, and the first mounting portion 210 has pushed the otoless snap ring 420 to be sleeved on the working shaft 400 (not shown in the drawings).

Wherein, the tail end of the mounting block 212 is provided with a rotary trunnion 2121, and the mounting frame 211 is provided with a trunnion hole for accommodating the rotary trunnion 2121. When the mounting block 212 moves from the earless snap ring parking segment 112 with a larger outer diameter to the working shaft 400 with a smaller outer diameter, the mounting block 212 receives the radial inward pressure of the elastic ring 213, and rotates the trunnion 2121 to rotate in the trunnion hole, so that the head end of the mounting block 212 moves radially inwards, and the mounting block 212 is ensured to push the earless snap ring 420 to move in the head-to-tail direction all the time.

Further, the first mounting portion 210 is further provided with an annular groove 214 for accommodating the elastic ring 213, so as to define the position of the elastic ring 213. In particular, the mounting device further comprises an elastic member 300, the guide member 100 is provided with a receiving cavity 120 for receiving the elastic member 300, and two ends of the elastic member 300 are respectively abutted against the guide member 100 and the abutment member 200.

In operation, the abutting piece 200 is manually pushed to move from the tail end to the head end, the abutting piece 200 pushes the auricular snap ring 420 to move towards the auricular snap ring accommodating groove 410, and the position of the guide piece 100 abutting against the spline shaft 400 is unchanged, so that the abutting piece 200 and the guide piece 100 are relatively displaced, and the elastic piece 300 positioned in the accommodating cavity 120 is compressed and is in a compressed state. The abutting piece 200 is manually loosened, the compressed elastic piece 300 returns to a loose state, and the abutting piece 200 is driven to move from the head end to the tail end, so that the mounting device returns to an initial state.

In this embodiment, the elastic member is a retractable spring. The pushing end 230 at the tail end of the abutment 200 abuts against the end of the elastic member 300, and when the abutment 200 is pushed to move from the tail end to the head end, the pushing end 230 is only required to be manually flapped to the head end.

Preferably, the guide 100 and the abutment 200 are further provided with a sliding groove 130 and a sliding block 240, respectively, the sliding groove 130 extending in the axial direction of the mounting device.

In the present embodiment, the outer side wall of the guide member 100 is provided with a sliding groove 130 extending along the axial direction thereof, and the inner side wall of the abutment member 200 is provided with a slider 240 adapted to the sliding groove 130. The mutual displacement of the sliding groove 130 and the sliding block 240 can be always fixed in the axial direction by the mutual matching of the sliding groove 130 and the sliding block 240, so that the circumferential movement of the sliding groove 130 and the sliding block 240 is avoided.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (4)

1. An installation device of an ear-free snap ring of a shaft is characterized by comprising a guide piece (100) and an abutting piece (200); the head end of the guide piece (100) is provided with an otoless snap ring placing part (110), the otoless snap ring placing part (110) comprises an otoless snap ring parking section (111), and the external diameter of the otoless snap ring parking section (111) is larger than that of the working shaft; the abutting piece (200) is sleeved on the guide piece (100) and can slide along the guide piece (100); in an initial state, the earless clasp placement part (110) protrudes out of the head end of the abutting piece (200);

the abutment (200) comprises a push end (230), a first mounting portion (210), and a connecting portion (220) connecting the push end (230) and the first mounting portion (210); the first installation department (210) is located the head end of butt spare (200), first installation department (210) are including fixing mounting bracket (211) on connecting portion (220), a plurality of circumference arrange in install piece (212) of guide (100) and cover establish in elastic ring (213) of the outer circumference of this guide (100) install piece (212), install the tail end of piece (212) with mounting bracket (211) are articulated.

2. The shaft-type earless snap ring mounting device of claim 1, wherein said earless snap ring placement portion (110) further comprises an earless snap ring expansion segment (112); the no-ear snap ring expansion section (112) is positioned at the tail end of the no-ear snap ring parking section (111), and the outer diameter of the no-ear snap ring expansion section (112) gradually increases from the tail end to the head end.

3. The shaft type earless snap ring mounting device according to claim 1 or 2, further comprising an elastic member (300), wherein a receiving cavity (120) for receiving the elastic member (300) is formed in the guide member (100), and both ends of the elastic member (300) are respectively abutted against the guide member (100) and the abutment member (200).

4. A mounting device for an ear-less collar of a shaft according to claim 3, characterized in that the guide member (100) and the abutment member (200) are further provided with a slide groove (130) and a slide block (240), respectively, the slide groove (130) extending in the axial direction of the mounting device.

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