Automobile steering engine assembly

Abstract

The utility model provides an automobile steering engine assembly, and belongs to the technical field of automobile accessories. The integrated shaft housing solves the problem that an integrated shaft housing in an existing automobile steering engine assembly is inconvenient to maintain internally. The automobile steering gear assembly comprises a rack and a shaft shell for installing the rack, first flanges are arranged at the two ends of the shaft shell, a transition shaft is connected through the first flanges, second flanges connected with the first flanges are arranged on the transition shaft, the first flanges and the second flanges are connected through screws, and a dustproof device is arranged between the first flanges and the second flanges. The dustproof device is composed of a first dustproof ring and a second dustproof ring which are installed on the end faces of the first flange and the second flange respectively. According to the utility model, the shaft housing can be independently detached, so that the internal maintenance convenience is improved, and the overall dustproof sealing performance is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts and relates to an automobile steering gear assembly. Background Art

[0002] There are roughly three types of power steering devices on the market: motor electric power steering, rack and pinion hydraulic power steering, and electro-hydraulic power steering.

[0003] Among them, the steering gear structure of the rack and pinion type mainly drives the work through the transmission of the rack and pinion. A shaft housing is arranged outside the rack. However, the current shaft housing is usually an integral structure. When maintaining the inside of the shaft housing, it is necessary to remove the external structures connected to both ends of the shaft housing, which is very troublesome. Summary of the Invention

[0004] The purpose of the utility model is to provide an automobile steering gear assembly with a shaft housing that can be easily disassembled and maintained for the above problems existing in the prior art.

[0005] The purpose of the utility model can be realized by the following technical solutions: An automobile steering gear assembly includes a rack and a shaft housing for installing the rack. The characteristic is that both ends of the shaft housing have first flanges, and a transition shaft is connected through the first flanges. A second flange is provided on the transition shaft and is connected to the first flange. The first flange and the second flange are connected by screws. A dust-proof device is provided between the first flange and the second flange. The dust-proof device is composed of a first dust-proof ring and a second dust-proof ring respectively installed on the end faces of the first flange and the second flange.

[0006] In the above-mentioned automobile steering gear assembly, both the first dust-proof ring and the second dust-proof ring are composed of a ring body and inner retaining rings formed at two positions inside and outside the ring body. The longitudinal section of the ring body is an arc structure. A sealing part is formed between the front end of the inner retaining ring and the ring body. The sealing parts of the first dust-proof ring and the second dust-proof ring are in sealing contact.

[0007] In the above-mentioned automobile steering gear assembly, sealing grooves for installing the first dust-proof ring and the second dust-proof ring are provided on both the first flange and the second flange, and a clamping groove for the inner retaining ring to be clamped into is also provided on the groove wall of the sealing groove.

[0008] Compared with the prior art, the shaft housing of this automobile steering gear assembly can be disassembled separately, which improves the convenience of internal maintenance and the overall dust-proof and sealing performance. Brief Description of the Drawings

[0009] Figure 1 is a perspective view of this automobile steering gear assembly.

[0010] Figure 2 is a partial cross-sectional view of this automobile steering gear assembly.

[0011] In the figure, 1 is a rack; 2 is a shaft housing; 3 is a first flange; 4 is a second flange; 5 is a ring body; 6 is an inner snap ring; 7 is a sealing portion. Specific embodiments

[0012] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0013] As Figure 1 , Figure 2 shown, the automotive steering gear assembly of the present invention includes a rack 1 and a shaft housing 2 for mounting the rack 1. Both ends of the shaft housing 2 have a first flange 3, and a transition shaft is connected through the first flange 3. The transition shaft has a second flange 4 connected to the first flange 3. The first flange 3 and the second flange 4 are connected by screws. During maintenance, as long as the screws are removed, the shaft housing 2 can be separately removed for internal maintenance and repair. In addition, in order to achieve a dust-proof effect, a dust-proof device is provided between the first flange 3 and the second flange 4. The dust-proof device is composed of a first dust-proof ring and a second dust-proof ring respectively installed on the end faces of the first flange 3 and the second flange 4.

[0014] Further elaborating, both the first dust-proof ring and the second dust-proof ring are composed of a ring body 5 and inner snap rings 6 formed at the inner and outer two circles of the ring body 5. The longitudinal section of the ring body 5 is an arc structure. A sealing portion 7 is formed between the front end of the inner snap ring 6 and the ring body 5. The sealing portion 7 of the first dust-proof ring and the sealing portion 7 of the second dust-proof ring are in sealing contact, forming a dust-proof seal between point and point. And the sealing portion 7 is formed at the inner and outer two circles of the ring body 5, forming two seals to improve the sealing effect.

[0015] Preferably, both the first flange 3 and the second flange 4 are provided with sealing grooves for installing the first dust-proof ring and the second dust-proof ring, and the groove walls of the sealing grooves also have card slots for the inner snap rings 6 to be snapped into.

[0016] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0017] Although terms such as rack 1, shaft housing 2, first flange 3, second flange 4, ring body 5, inner snap ring 6, sealing portion 7, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An automobile steering gear assembly, comprising a rack (1) and an axle housing (2) for mounting the rack (1), characterized in that: The shaft housing (2) has first flanges (3) at both ends, and is connected to a transition shaft via the first flange (3); the transition shaft has a second flange (4) connected to the first flange (3); the first flange (3) and the second flange (4) are connected via screws; a dustproof device is provided between the first flange (3) and the second flange (4); the dustproof device is composed of a first dustproof ring and a second dustproof ring respectively installed on the end faces of the first flange (3) and the second flange (4).

2. The automobile steering gear assembly according to claim 1, characterized in that: The first dustproof ring and the second dustproof ring are both composed of a ring body (5) and inner buckle rings (6) formed at inner and outer circles of the ring body (5); the ring body (5) has an arc-shaped longitudinal section; a sealing portion (7) is formed between the front end of the inner buckle ring (6) and the ring body (5); the sealing portion (7) of the first dustproof ring is in sealing contact with the sealing portion (7) of the second dustproof ring.

3. The automobile steering gear assembly according to claim 1, characterized in that: The first flange (3) and the second flange (4) are both provided with sealing grooves for installing the first dustproof ring and the second dustproof ring, and the groove walls of the sealing grooves also have a slot for the inner buckle ring (6) to be inserted into.

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