Low-resistance steering column rubber shield

Abstract

The utility model discloses a low-resistance steering column rubber shield, which comprises a base and a shield body, the shield body is arranged on the base, the shield body and the base are integrally arranged, the shield body comprises a corrugated shield and an annular bulge, an inlay groove is arranged in the annular bulge, a bearing is arranged in the inlay groove, and the corrugated shield and the annular bulge are integrally arranged. A sheath is arranged on the bearing, an assembling groove is formed in the sheath, and the bearing is embedded in the assembling groove. The device has the beneficial effects that by arranging the bearing, traditional sliding friction is converted into rolling friction of the bearing, the abrasion rate of the rubber protective cover can be effectively reduced, and the rotating torque and noise are reduced; the bearing is fixed in an embedded mode and is not prone to loosening, installation is convenient and fast, dismounting and replacing are convenient, the protective sleeve is arranged on the inner ring of the bearing, the bearing can be effectively protected, the good buffering and sealing effects are achieved, the protection performance of the bearing is guaranteed, and dust, water and other impurities are prevented from entering a steering system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts manufacturing, especially to a low-resistance steering column rubber shield. BACKGROUND

[0002] The steering column rubber shield is an important part of the automobile steering system, which is tightly sleeved on the outside of the steering column to form a sealed protective layer. During the steering process of the vehicle, it can deform accordingly with the rotation and movement of the steering column, while maintaining the wrapping and protection of the steering column, ensuring that dust, moisture and other impurities from the outside cannot enter the inside of the steering column, and can effectively buffer and absorb the vibration and impact force generated during the movement of the steering column.

[0003] However, the applicant found that the above-mentioned technology at least has the following technical problems in the process of implementing the utility model technical scheme in the embodiments of the present application:

[0004] Because the steering shaft will rotate and produce a certain displacement during the driving process of the vehicle, the long-term contact and relative movement of the rubber shield and the steering shaft will cause the inside surface of the shield to gradually wear out. When the wear is serious, it will cause abnormal noise and increase the rotation torque. The thickness of the rubber shield will be thinned, the protective performance will be reduced, and dust, moisture and other impurities may more easily enter the steering system. UTILITY MODEL CONTENTS

[0005] The embodiments of the present application provide a low-resistance steering column rubber shield, which converts the traditional sliding friction into rolling friction of the bearing, effectively reducing the wear rate of the rubber shield, reducing the rotation torque and noise; a sleeve is arranged in the inner ring of the bearing, which plays a good buffering and sealing role, ensures its protective performance, and prevents dust, moisture and other impurities from entering the steering system.

[0006] The embodiments of the present application provide a low-resistance steering column rubber shield, which converts the traditional sliding friction into rolling friction of the bearing, effectively reducing the wear rate of the rubber shield, reducing the rotation torque and noise; a sleeve is arranged in the inner ring of the bearing, which plays a good buffering and sealing role, ensures its protective performance, and prevents dust, moisture and other impurities from entering the steering system.

[0007] Further, the sleeve is annular as a whole, the sleeve is covered on the inner ring of the bearing, and the depth of the assembly groove is 1 / 2 of the thickness of the sleeve.

[0008] Further, the base, the shield and the sleeve are made of rubber, the side of the shield towards the base is inclined by 10°, and the base is uniformly provided with four mounting holes.

[0009] Further, the depth of the inlay groove is 2 / 5-1 / 3 of the thickness of the annular protrusion, and the inlay groove is subjected to rubber hardening treatment.

[0010] Further, the bearing is a deep groove ball bearing, and the inner diameter of the bearing is 45 mm, the outer diameter is 55 mm, and the width is 6 mm.

[0011] Further, the annular protrusion is provided with an inclined surface, the inclined surface is arranged at the connection between the annular protrusion and the corrugated cover, and the inclined surface is inclined outward by 10-15°.

[0012] Further, the corrugated cover is provided with 5-8 corrugations, and the corrugated cover is uniform in thickness and has a thickness of 1.5 mm.

[0013] The one or more technical solutions provided in the embodiments have at least the following technical effects or advantages:

[0014] 1. By arranging the bearing, the traditional sliding friction is converted into rolling friction of the bearing, which can effectively reduce the wear rate of the rubber cover, reduce the rotation torque and noise.

[0015] 2. The bearing is fixed in an embedded manner and is not easy to loosen, and is convenient and fast to install, and is convenient to disassemble, replace and protect, and the bearing inner ring is provided with a protective sleeve, which can effectively protect the bearing, has a good buffering and sealing effect, ensures the protection performance, and prevents dust, moisture and other impurities from entering the steering system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a specific structural schematic diagram of the application;

[0017] Figure 2 is Figure 1 is an enlarged view of A in FIG. 4;

[0018] Figure 3 is a top view of the application. DETAILED DESCRIPTION

[0019] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and the specific embodiments.

[0020] A low-resistance steering column rubber cover, comprising a base 4 and a cover body 1, the cover body 1 is arranged on the base 4, the cover body 1 and the base 4 are integrally arranged, the cover body 1 comprises a corrugated cover 3 and an annular protrusion 2, the annular protrusion 2 is provided with an inlay groove, the inlay groove is provided with a bearing 5, the bearing 5 is provided with a protective sleeve 6, the protective sleeve 6 is provided with an assembly groove, and the bearing 5 is embedded in the assembly groove.

[0021] The technical solutions in the embodiments of the application have at least the following technical effects or advantages:

[0022] The bearing 5 converts traditional sliding friction into rolling friction of the bearing 5, so that the wear rate of the rubber cover is effectively reduced, and the rotating torque and noise are reduced.

[0023] The bearing 5 is fixed in an embedded manner and is not easy to loosen, and is convenient and fast to install, disassemble and replace. The bearing 5 is protected by the sheath 6 arranged on the inner ring of the bearing 5, so that the bearing 5 is effectively protected and good buffering and sealing effects are achieved. Embodiment

[0024] A low-resistance steering column rubber cover, the sheath 6 is annular as a whole, the sheath 6 is wrapped on the inner ring of the bearing 5, the depth of the assembly groove is 1 / 2 of the thickness of the sheath 6; the base 4, the cover body 1 and the sheath 6 are made of rubber, and generally made of butyronitrile rubber, ethylene-propylene-diene rubber and the like which have good elasticity, wear resistance, aging resistance and corrosion resistance; the cover body 1 is inclined by 10° to one side of the base 4; four mounting holes are uniformly arranged on the base 4; the depth of the inlaid groove is 2 / 5-1 / 3 of the thickness of the annular protrusion 2, and the inlaid groove is subjected to rubber hardening treatment; the bearing 5 is a deep groove ball bearing 5, the inner diameter of the bearing 5 is 45 mm, the outer diameter is 55 mm, and the width is 6 mm; the annular protrusion 2 is provided with an inclined surface, the inclined surface is arranged at the connection between the annular protrusion 2 and the corrugated cover 3, and the inclined surface is inclined outward by 10-15°; the corrugated cover 3 is provided with 5-8 corrugations, and the corrugated cover 3 is uniform in thickness and has a thickness of 1.5 mm.

[0025] The technical solutions in the embodiments of the application have at least the following technical effects or advantages:

[0026] The sheath 6 is arranged on the inner ring of the bearing 5 in a wrapping manner, the sheath 6 is located between the bearing 5 and the steering column, can effectively protect the bearing 5, and can prevent dust, moisture and other impurities from entering the inside of the steering column, so as to achieve good sealing effect and ensure the protection performance and prevent dust, moisture and other impurities from entering the steering system.

[0027] The inlaid groove is subjected to rubber hardening treatment, so that the stability of the bearing 5 assembly is ensured, and the bearing 5 is prevented from loosening from the inlaid groove.

[0028] The inclined surface on the annular protrusion 2 plays a certain guiding role when the steering column is installed, the corrugations on the corrugated cover 3 can absorb and buffer vibration when the steering column rotates and moves, and the number of corrugations can be increased or decreased according to actual use requirements.

[0029] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A low-resistance steering column rubber cover, characterized in that, Includes a base (4) and a cover (1). The cover (1) is set on the base (4). The cover (1) and the base (4) are integrated. The cover (1) includes a corrugated cover (3) and an annular protrusion (2). The annular protrusion (2) is provided with an inlay groove. The inlay groove is provided with a bearing (5). The bearing (5) is provided with a protective sleeve (6). The protective sleeve (6) is provided with an assembly groove. The bearing (5) is embedded in the assembly groove.

2. The low-resistance steering column rubber cover as described in claim 1, characterized in that, The sheath (6) is ring-shaped and covers the inner ring of the bearing (5). The depth of the mounting groove is 1 / 2 of the thickness of the sheath (6).

3. The low-resistance steering column rubber cover as described in claim 1, characterized in that, The base (4), cover (1) and sleeve (6) are made of rubber. The cover (1) is tilted 10° toward one side of the base (4). The base (4) has four mounting holes evenly arranged on it.

4. A low-resistance steering column rubber cover as described in claim 1, characterized in that, The depth of the inlay groove is 2 / 5 to 1 / 3 of the thickness of the annular protrusion (2), and the inlay groove is treated with rubber hardening.

5. A low-resistance steering column rubber cover as described in claim 1, characterized in that, The bearing (5) is a deep groove ball bearing (5), with an inner diameter of 45mm, an outer diameter of 55mm, and a width of 6mm.

6. A low-resistance steering column rubber cover as described in claim 1, characterized in that, The annular protrusion (2) is provided with an inclined surface, which is located at the connection between the annular protrusion (2) and the corrugated cover (3), and the inclined surface is inclined outward at 10-15°.

7. A low-resistance steering column rubber cover as described in claim 1, characterized in that, The corrugated cover (3) has 5-8 corrugations and the corrugated cover (3) has a uniform thickness of 1.5mm.

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