阅读说明：本技术 一种后轴使用的球碗式防尘罩 (Ball bowl type dust cover for rear axle ) 是由 周林灿 于 2021-06-30 设计创作，主要内容包括：本发明涉及汽车配件技术领域,尤其是一种后轴使用的球碗式防尘罩,包括用于连接万向节的球碗部和用于连接后轴的套管部；球碗部与套管部同轴布置且均采用柔性材料制作,球碗部的碗壁部位外侧制有第一卡箍安装槽,套管部一端的外壁制有第二卡箍安装槽,另一端与球碗部的碗底部位连为一体。本发明可以减轻零件制造成本,减少油脂注入量,减轻驱动轴重量。(The invention relates to the technical field of automobile accessories, in particular to a ball bowl type dust cover for a rear shaft, which comprises a ball bowl part used for connecting a universal joint and a sleeve part used for connecting the rear shaft; ball bowl portion and bushing part coaxial arrangement just all adopt the flexible material preparation, and the bowl wall position outside system of ball bowl portion has first clamp mounting groove, and the outer wall system of bushing part one end has the second clamp mounting groove, and the other end links as an organic wholely with the bowl bottom position of ball bowl portion. The invention can reduce the manufacturing cost of parts, reduce the grease injection amount and reduce the weight of the driving shaft.)

1. The utility model provides a ball bowl formula dust cover that rear axle used which characterized in that: a bowl portion (1) for connecting the universal joint and a sleeve portion (2) for connecting the rear axle; ball bowl portion (1) and bushing part (2) coaxial arrangement just all adopt the flexible material preparation, and the bowl wall position (3) outside system of ball bowl portion (1) has first clamp mounting groove (7), and the outer wall system of bushing part (2) one end has second clamp mounting groove (8), and the other end links as an organic wholely with bowl bottom position (4) of ball bowl portion (1).

2. A bowl-shaped dust cover for a rear axle according to claim 1, wherein: bowl bottom part (4) comprise first segmental arc (4.1) and the second segmental arc (4.2) of inboard in the outside, and first segmental arc (4.1) are connected and the opening down with bowl wall part (3), and second segmental arc (4.2) are connected and the opening up with bushing portion (2).

3. A bowl-shaped dust cover for a rear axle according to claim 2, wherein: a group of reinforcing ribs (5) are arranged in the first arc-shaped section (4.1), and the group of reinforcing ribs (5) are uniformly arranged into a ring by taking the axis of the ball bowl part (1) as the center.

4. A bowl-shaped dust cover for a rear axle according to claim 1, 2 or 3, wherein: the inboard system of bowl wall position (3) has the round arch that corresponds with first clamp mounting groove (7), and the outer wall of bushing portion (2) one end forms first sealing washer (6).

5. A bowl-shaped dust cover for a rear axle according to claim 1, 2 or 3, wherein: the inner wall of the sleeve part (2) is provided with a circle of bulges corresponding to the second hoop mounting groove (8), and the circle of bulges form a second sealing ring (9).

6. A bowl-shaped dust cover for a rear axle according to claim 1, 2 or 3, wherein: the flexible material is rubber or silica gel.

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a ball bowl type dust cover for a rear axle.

Background

The automobile driving shaft (also called transmission shaft) is an important part for transmitting power in an automobile transmission system, and the automobile driving shaft, the transmission shaft and a driving axle are used for transmitting the power of an engine to wheels together so as to enable an automobile to generate driving force. The drive shaft often uses with the universal joint cooperation, generally all installs the dust cover in transmission shaft and universal joint junction to prevent outside dust, muddy water and debris from getting into the universal joint, prevent simultaneously that the lubricating grease of universal joint from revealing, reduce the wearing and tearing speed of universal joint, guarantee transmission system's steady operation and life.

As shown in the "one kind of propeller shaft dust cover" provided in the chinese invention patent zl201721232642.x and the "one kind of propeller shaft dust cover mounting structure" provided in the chinese invention patent ZL201620321817.3, the existing dust cover of the drive shaft adopts a multi-peak dust cover, and the maximum pivot angle of the universal joint is reached by peak expansion and contraction when the pivot angle of the drive shaft, and the defects of the dust cover are as follows: (1) therefore, the wave crests of the dust cover are more, and the cost of materials and molds is increased; (2) the amount of grease injected into the dust cover is relatively large; (3) the whole length is long, and the requirement on the space arrangement of the whole vehicle is more limited.

Disclosure of Invention

The invention aims to overcome the defects in the background and provide the ball-bowl type dust cover for the rear axle, which meets the requirement of the arrangement space of the whole vehicle, reduces the manufacturing cost of parts, reduces the grease injection amount and reduces the weight of the driving axle.

The technical scheme adopted by the invention is as follows:

a ball bowl type dust cover for a rear axle is used for connecting a ball bowl part of a universal joint and a sleeve part for connecting the rear axle; ball bowl portion and bushing part coaxial arrangement just all adopt the flexible material preparation, and the bowl wall position outside system of ball bowl portion has first clamp mounting groove, and the outer wall system of bushing part one end has the second clamp mounting groove, and the other end links as an organic wholely with the bowl bottom position of ball bowl portion.

Preferably, the bowl bottom portion is formed by a first arcuate section on the outside and a second arcuate section on the inside, the first arcuate section being connected to the bowl wall portion and opening downwardly, and the second arcuate section being connected to the sleeve portion and opening upwardly.

Preferably, a group of reinforcing ribs are arranged in the first arc-shaped section, and the group of reinforcing ribs are uniformly arranged into a ring by taking the axis of the ball bowl part as the center.

Preferably, the inner side of the bowl wall part is provided with a circle of bulges corresponding to the first clamp installation groove, and the outer wall of one end of the sleeve part forms a first sealing ring.

Preferably, the inner wall of the sleeve part is formed with a ring of protrusions corresponding to the second band installation groove, and the ring of protrusions forms a second sealing ring.

Preferably, the flexible material is rubber or silicone.

The invention has the beneficial effects that:

(1) the total length of the dust cover is shortened, the total outer diameter size is small, and the limitation on the arrangement space of the whole vehicle is small;

(2) grease injection in the dust cover is cancelled, so that the weight is reduced and the cost is reduced;

(3) the dust cover adopts the design of no wave peak, and the material that needs reduces, and mould expense and whole material cost reduce.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a sectional view taken along the line a-a in fig. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, specific meanings of the general terms in the present invention may be specifically understood by those skilled in the art.

As shown in fig. 1 and 2, the present invention provides a bowl-type dust cover for a rear axle, which is used for connecting a bowl portion 1 of a universal joint and a sleeve portion 2 for connecting the rear axle. The bowl portion 1 and the sleeve portion 2 are coaxially arranged and are made of a flexible material, such as rubber or silicone, and other materials meeting the use requirement. The 3 outside systems in bowl wall position of ball bowl portion 1 have first clamp mounting groove 7, can hoop through the clamp on the universal joint, and the outer wall system of 2 one ends of bushing portion has second clamp mounting groove 8, can hoop through the clamp on the rear axle, and the other end links as an organic wholely with ball bowl portion 1's bowl bottom position 4.

The bowl bottom part 4 consists of a first arc-shaped section 4.1 at the outer side and a second arc-shaped section 4.2 at the inner side, and the two sections are connected into a whole. The first arc-shaped section 4.1 is connected with the bowl wall part 3 and the opening of the first arc-shaped section faces downwards, the second arc-shaped section 4.2 is connected with the sleeve part 2 and the opening of the second arc-shaped section faces upwards, and the connection part is in smooth transition. A group of reinforcing ribs 5 are arranged in the first arc-shaped section 4.1, and the group of reinforcing ribs 5 are uniformly arranged into a ring by taking the axis of the ball bowl part 1 as the center. The first arc-shaped section is reinforced by the reinforcing ribs 5, and the service life of the first arc-shaped section is prolonged.

The inboard system of bowl wall position 3 has the round arch that corresponds with first clamp mounting groove 7, and the outer wall of bushing portion 2 one end forms first sealing washer 6 for sealed between dirt proof boot and the universal joint. The inner wall of the sleeve part 2 is provided with a circle of bulges corresponding to the second hoop mounting groove 8, and the circle of bulges form a second sealing ring 9 for sealing between the sleeve part and the rotating shaft.

When the rear driving shaft dust cover is matched with the whole vehicle, the designed maximum swinging angle of the driving shaft is within 18 degrees, and if the front shaft dust cover of 45 degrees is used, the cost is higher. The ball bowl type dust cover provided by the invention adopts a design mode without wave peaks, achieves the required swing angle through the deformation of rubber at the bottom of the bowl, shortens the length of the dust cover, has less internal space, does not need to add lubricating grease, and reduces the cost.

The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.