CN211715537U - Bearing for automobile steering device - Google Patents
Bearing for automobile steering device Download PDFInfo
- Publication number
- CN211715537U CN211715537U CN201922207927.3U CN201922207927U CN211715537U CN 211715537 U CN211715537 U CN 211715537U CN 201922207927 U CN201922207927 U CN 201922207927U CN 211715537 U CN211715537 U CN 211715537U
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- bearing
- inner circle
- outer lane
- inner ring
- sealing washer
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Abstract
The utility model discloses a bearing for auto steering ware, including the outer lane, the inner circle, the steel ball, holder and sealing washer, the outer lane is installed on the indoor installation face of bearing, the coaxial setting in the radial outside of inner circle in outer lane, holder and sealing washer are installed respectively between outer lane and inner circle, the steel ball is installed on the holder, the outer lip and the sealed cooperation of outer lane contact of sealing washer, the interior lip and the sealed cooperation of inner circle contact of sealing washer, the surface of outer lane is convex spherical surface, the centre of sphere of convex spherical surface falls on the central line of inner circle, the installation face be with convex spherical surface matched with concave sphere. The utility model discloses a bearing for auto steering ware, the surface design of its outer lane is convex spherical, cooperates with the installation face of the indoor concave spherical form of bearing, can realize the automatic aligning of bearing for auto steering ware, improves bearing assembly precision to reduce the fatigue wear of bearing, extension bearing life.
Description
Technical Field
The utility model relates to a nonstandard bearing specifically is a bearing for auto steering ware.
Background
The surface of the outer ring of the existing bearing for the automobile steering gear is a cylindrical surface, so that the bearing does not have a centering function, is large in fatigue wear and short in service life. The bearing of the automobile steering device disclosed in CN207161515U comprises a bearing body and a mounting device, wherein the bearing body comprises a bearing outer ring, a bearing inner ring, a steel ball and a retainer, the steel ball is held between the bearing outer ring and the bearing inner ring through the retainer, the mounting device comprises an annular seat ring which axially extends at one axial end of the bearing outer ring and is integrally formed, the annular seat ring is provided with an axially through abdicating central through hole, and the annular seat ring is provided with a mounting through hole along the radial direction. The automobile steering gear bearing is a common bearing structure, and the surface of the outer ring of the bearing is a cylindrical surface, so that the aligning function cannot be realized.
Disclosure of Invention
The utility model aims to solve the technical problem that, to prior art not enough, provide a bearing for auto steering ware with automatic aligning function, long service life.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a bearing for auto steering ware, includes outer lane, inner circle, steel ball, holder and sealing washer, the outer lane install on the indoor installation face of bearing, the outer lane coaxial setting be in the radial outside of inner circle, the holder with the sealing washer install respectively the outer lane with the inner circle between, the steel ball install the holder on, the sealing washer the outer lip with the outer lane contact seal cooperation, the sealing washer the inner lip with the inner circle contact seal cooperation, the surface of outer lane be convex spherical surface, convex spherical surface's centre of sphere fall on the central line of inner circle, the installation face be with convex spherical surface matched with concave spherical surface.
The utility model discloses the surface design of the outer lane of bearing for auto steering ware is convex spherical, cooperates with the installation face of the indoor concave spherical form of bearing, can realize the automatic aligning of bearing for auto steering ware, improves bearing assembly precision to reduce the fatigue wear of bearing, extension bearing life.
Preferably, the inner lip of the sealing ring comprises an annular first sealing lip and an annular second sealing lip which are integrally arranged, the first sealing lip is inclined to the axial outer side of the sealing ring, the second sealing lip is inclined to the axial inner side of the sealing ring, the inner diameter of the first sealing lip is smaller than the outer diameter of the inner ring, the inner diameter of the second sealing lip is larger than the outer diameter of the inner ring, and the first sealing lip is in contact sealing fit with the outer surface of the inner ring. The sealing effect of the sealing ring is good, and the sealing effect inside the bearing can be ensured.
Further, the roughness of the outer surface of the inner ring is Ra0.05 +/-0.01. The lower roughness of Ra0.05 +/-0.01 of the outer surface of the inner ring can ensure that the first sealing lip is in close contact with the outer surface of the inner ring, so that a more effective sealing structure is obtained.
Preferably, a protective cover is mounted on the radial outer side of the inner ring, and the protective cover is covered on the axial outer side of the inner hole of the outer ring. The protection casing can prevent effectively that great particulate matter or mud from getting into inside the bearing, shares the sealing pressure of sealing washer, further ensures the sealed effect of sealing washer.
Further, the protection casing including be the first cover body, the second cover body and the third cover body that ladder-shaped body coupling set up, the first cover body follow the axial setting of inner circle, the first cover body fix the radial outside of inner circle, the second cover body with the third cover body respectively follow the radial setting of inner circle, the second cover body with the third cover body cover establish the axial outside of the hole of outer lane. The above-mentioned protection casing of compriseing first cover body, the second cover body and the third cover body has the reposition of redundant personnel effect to particulate matter and mud to realize better protecting effect.
Preferably, the inner ring is a lengthened inner ring, a shaft hole is formed in the inner ring, the shaft hole penetrates through the axial direction of the inner ring, the shaft hole is used for installing a rotating shaft, the outer ring is arranged at one end of the inner ring, two threaded holes are formed in the other end of the inner ring, the two threaded holes are used for installing two screws, and the two screws are used for locking the rotating shaft. The lengthened inner ring is adopted, so that the assembly and disassembly of the rotating shaft are facilitated. The rotating shaft is locked by the two screws, so that the operation is convenient and the locking effect is good.
Further, the included angle of the two threaded holes in the circumferential direction of the inner ring is 120 degrees.
Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses a bearing for auto steering ware, the surface design of its outer lane is convex spherical, cooperates with the installation face of the indoor concave spherical form of bearing, can realize the automatic aligning of bearing for auto steering ware, improves bearing assembly precision to reduce the fatigue wear of bearing, extension bearing life.
Drawings
FIG. 1 is a schematic structural view of a bearing for an automobile steering gear of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The bearing for the automobile steering gear of the embodiment 1 is a 6205 non-standard bearing, as shown in fig. 1 and fig. 2, the bearing includes an outer ring 1, an inner ring 2, a steel ball 3, a retainer 4 and a seal ring 5, the outer ring 1 is installed on an installation surface in a bearing chamber (not shown in the figure), the outer ring 1 is coaxially arranged on the radial outer side of the inner ring 2, the retainer 4 and the seal ring 5 are respectively installed between the outer ring 1 and the inner ring 2, the steel ball 3 is installed on the retainer 4, an outer lip of the seal ring 5 is in contact sealing fit with the outer ring 1, an inner lip of the seal ring 5 is in contact sealing fit with the inner ring 2, the outer surface of the outer ring 1 is a convex spherical surface 11, the center of the convex spherical surface 11 is located on the center line of.
In embodiment 1, the inner ring 2 is a lengthened inner ring 2, a shaft hole 21 is formed in the inner ring 2, the shaft hole 21 penetrates through the axial arrangement of the inner ring 2, the shaft hole 21 is used for installing a rotating shaft (not shown in the figure), the outer ring 1 is arranged at one end of the inner ring 2, two threaded holes 22 are formed in the other end of the inner ring 2, an included angle of the two threaded holes 22 in the circumferential direction of the inner ring 2 is 120 °, the two threaded holes 22 are used for installing two screws 23, and the two screws 23 are used for locking the rotating shaft.
The bearing for an automobile steering device according to embodiment 2 differs from embodiment 1 in that, in embodiment 2, the inner lip of the seal ring 5 includes a first seal lip 51 and a second seal lip 52 in an annular shape that are integrally provided, the first seal lip 51 is inclined to the outside in the axial direction of the seal ring 5, the second seal lip 52 is inclined to the inside in the axial direction of the seal ring 5, the inner diameter of the first seal lip 51 is smaller than the outer diameter of the inner ring 2, the inner diameter of the second seal lip 52 is larger than the outer diameter of the inner ring 2, the roughness of the outer surface of the inner ring 2 is Ra0.05 ± 0.01, and the first seal lip 51 is in contact sealing engagement with the outer surface of the inner ring 2.
The bearing for an automobile steering gear according to embodiment 3 differs from embodiment 2 in that in embodiment 3, a shield 6 is attached to the radially outer side of the inner ring 2, and the shield 6 is provided to cover the axially outer side of the inner hole 12 of the outer ring 1.
In embodiment 3, the protective cover 6 includes a first cover 61, a second cover 62, and a third cover 63 integrally connected in a stepped shape, the first cover 61 is disposed along the axial direction of the inner ring 2, the first cover 61 is fixed on the radial outer side of the inner ring 2, the second cover 62 and the third cover 63 are respectively disposed along the radial direction of the inner ring 2, and the second cover 62 and the third cover 63 are disposed on the axial outer side of the inner hole 12 of the outer ring 1.
Claims (7)
1. The utility model provides a bearing for auto steering ware, includes outer lane, inner circle, steel ball, holder and sealing washer, the outer lane install on the indoor installation face of bearing, the outer lane coaxial setting be in the radial outside of inner circle, the holder with the sealing washer install respectively the outer lane with the inner circle between, the steel ball install the holder on, the outer lip of sealing washer with outer lane contact seal cooperation, the inner lip of sealing washer with inner circle contact seal cooperation, its characterized in that: the outer surface of the outer ring is a convex spherical surface, the center of the convex spherical surface is located on the center line of the inner ring, and the mounting surface is a concave spherical surface matched with the convex spherical surface.
2. The bearing for the automobile steering gear according to claim 1, characterized in that: the inner lip of sealing washer include annular first seal lip and annular second seal lip that integrative set up, first seal lip slant the axial outside of sealing washer, second seal lip slant the axial inboard of sealing washer, first seal lip's internal diameter be less than the external diameter of inner circle, second seal lip's internal diameter be greater than the external diameter of inner circle, first seal lip with the outer surface contact sealing cooperation of inner circle.
3. The bearing for the automobile steering gear according to claim 2, characterized in that: the roughness of the outer surface of the inner ring is Ra0.05 +/-0.01.
4. The bearing for the automobile steering gear according to claim 2, characterized in that: the radial outer side of inner circle install the protection casing, the protection casing cover establish the axial outside of the hole of outer lane.
5. The bearing for the automobile steering gear according to claim 4, characterized in that: the protection casing including be the first cover body, the second cover body and the third cover body that echelonment integral connection set up, the first cover body follow the axial setting of inner circle, the first cover body fix the radial outside of inner circle, the second cover body with the third cover body respectively follow the radial setting of inner circle, the second cover body with the third cover body cover establish the axial outside of the hole of outer lane.
6. The bearing for the automobile steering gear according to claim 1, characterized in that: the inner ring is a lengthened inner ring, a shaft hole is formed in the inner ring and penetrates through the axial direction of the inner ring, the shaft hole is used for installing a rotating shaft, the outer ring is arranged at one end of the inner ring, two threaded holes are formed in the other end of the inner ring, the two threaded holes are used for installing two screws, and the two screws are used for locking the rotating shaft.
7. The bearing for the automobile steering gear according to claim 6, characterized in that: the included angle of the two threaded holes in the circumferential direction of the inner ring is 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207927.3U CN211715537U (en) | 2019-12-11 | 2019-12-11 | Bearing for automobile steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207927.3U CN211715537U (en) | 2019-12-11 | 2019-12-11 | Bearing for automobile steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715537U true CN211715537U (en) | 2020-10-20 |
Family
ID=72817378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922207927.3U Active CN211715537U (en) | 2019-12-11 | 2019-12-11 | Bearing for automobile steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211715537U (en) |
-
2019
- 2019-12-11 CN CN201922207927.3U patent/CN211715537U/en active Active
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| GR01 | Patent grant | ||
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