CN218440232U - Self-lubricating radial spherical plain bearing - Google Patents
Self-lubricating radial spherical plain bearing Download PDFInfo
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- CN218440232U CN218440232U CN202222776974.1U CN202222776974U CN218440232U CN 218440232 U CN218440232 U CN 218440232U CN 202222776974 U CN202222776974 U CN 202222776974U CN 218440232 U CN218440232 U CN 218440232U
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- bearing
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- spherical plain
- outer ring
- resistant layer
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Abstract
The utility model relates to a self-lubricating radial spherical plain bearing, include: the bearing comprises a bearing outer ring, a bearing inner ring and a gasket; the bearing outer ring is nested on the outer side of the bearing inner ring, and the gasket is arranged between the bearing outer ring and the bearing inner ring; the inner side of the bearing outer ring is provided with an arc groove, and the liner is filled in the arc groove. The utility model discloses self-lubricating centripetal joint bearing simple structure, the arc groove that open in bearing inner race's inboard, the liner is filled and is located the arc inslot, and arc groove both sides have the symmetry formula to keep off the shoulder for control about the restriction liner, the size of play in the control that also can be better makes outer lane, inner circle and liner better laminating when the package is pressed together, has also avoided the dust to get into the self-lubricating performance that influences the liner in the clearance.
Description
Technical Field
The utility model relates to a bearing assembly machinery relates to a self-lubricating radial spherical plain bearing.
Background
The self-lubricating radial spherical plain bearing is a bearing capable of self-lubricating without adding lubricating oil, can be applied to high-end application fields and extreme environments, and is characterized in that a low-friction, high-bearing, shock-resistant and wear-resistant lubricating material is adhered to the inner spherical surface of an outer ring, the self-lubricating radial spherical plain bearing can self-lubricate and reduce friction loss while assisting the movement of the spherical plain bearing, and a solid self-lubricating friction pair is formed, so that the excellent friction-reducing and wear-resistant performances of the bearing can be realized without adding lubricating oil for maintenance in the movement process, the hardness requirement on a grinding shaft is lower, the manufacturing cost is reduced, the risk possibly caused by insufficient oil supply is avoided, and the later-period maintenance time is saved.
However, in the development of the existing self-lubricating radial spherical plain bearing, a dust cap is required to be mounted on the outer ring of the bearing or seal rings are required to be arranged at two ends of the bearing (for example, the publication number: CN107211579B refers to "the dust cap is used for preventing dust from entering into the gap between the outer ring and the inner ring") so as to prevent the dust from entering into the gap between the inner ring and the outer ring of the bearing to influence the self-lubricating performance of the gasket.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem of optimizing the functions of the existing radial spherical plain bearing in the prior art, the novel self-lubricating radial spherical plain bearing is provided,
the specific technical scheme is as follows:
designing a novel self-lubricating radial spherical plain bearing, including: the bearing comprises a bearing outer ring, a bearing inner ring and a gasket; the bearing outer ring is nested on the outer side of the bearing inner ring, and the gasket is arranged between the bearing outer ring and the bearing inner ring; the inner side of the bearing outer ring is provided with an arc groove, and the gasket is filled in the arc groove.
Preferably, the two sides of the arc groove are symmetrically distributed with retaining shoulders for limiting the liner to move left and right.
Preferably, the bearing inner ring is provided with an axial through hole, and inner chamfers are machined on two sides of the axial through hole.
Preferably, the inner chamfer of the bearing inner ring is a fillet.
Preferably, the inner chamfer of the bearing outer ring is a 45-degree inclined chamfer.
Preferably, the outer surface of the bearing outer ring is coated with a wear-resistant layer.
Preferably, the outer surface of the bearing inner ring is coated with a second high-temperature-resistant layer, and the inner surface of the bearing outer ring is coated with a first high-temperature-resistant layer.
Preferably, crN is adopted as a coating material for the wear-resistant layer, and the thickness of the wear-resistant layer is 1.5-2mm.
Preferably, the second high temperature resistant layer and the first high temperature resistant layer are both made of polyether-ether-ketone composite materials, and the thickness of the second high temperature resistant layer and the thickness of the first high temperature resistant layer are 0.5-1.5mm.
Preferably, the bearing inner ring is ball surface polished and chrome plated.
The technical scheme has the following advantages or beneficial effects:
1. the utility model discloses self-lubricating centripetal joint bearing simple structure, the arc groove that open in bearing inner race's inboard, the liner is filled in and is located the arc groove, and there is symmetrical formula fender shoulder arc groove both sides for the restriction liner is removed and is removed, has also avoided the dust to get into the self-lubricating performance who influences the liner in the clearance.
2. The utility model discloses during self-lubricating centripetal oscillating bearing's use, the bearing inner race is equipped with axial direction through-hole, and the axial direction through-hole both sides are all processed and are interior chamfer, and the interior chamfer of bearing inner race is the fillet, and the fillet can guarantee that the fine transitivity of outer axle packs into axial direction through-hole, and easy to assemble, and effectual contact stress of avoiding reduces stress concentration.
Drawings
Fig. 1 is a structural diagram of a radial spherical plain bearing according to the present invention;
fig. 2 is a bearing outer ring diagram of the radial spherical plain bearing provided by the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a bearing inner race diagram of the radial spherical plain bearing provided by the present invention.
Illustration of the drawings:
the bearing comprises a bearing outer ring 1, a bearing inner ring 2, a liner 3, a wear-resistant layer 11, a first high-temperature-resistant layer 12 and a second high-temperature-resistant layer 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 to 4, a self-lubricating radial spherical plain bearing comprises: the bearing comprises a bearing outer ring 1, a bearing inner ring 2 and a gasket 3; the bearing outer ring 1 is nested at the outer side of the bearing inner ring 2, and the gasket 3 is arranged between the bearing outer ring 1 and the bearing inner ring 2; the inner side of the bearing outer ring 1 is provided with an arc groove, and the liner 3 is filled in the arc groove.
The symmetrical retaining shoulders are arranged on two sides of the arc groove and used for limiting the liner 3 to move left and right, and the size of the internal and external ring clearance can be better controlled, so that the external ring, the internal ring and the liner are better attached together when being pressed.
Bearing inner race 2 is equipped with axially extending bore, and the axially extending bore both sides have all been processed interior chamfer, and the interior chamfer of bearing inner race 2 is the fillet, and the fillet can guarantee that fine transition is packed into, and easy to assemble, and the effectual contact stress of avoiding reduces stress concentration.
The inner chamfer angle of the bearing outer ring 1 is a 45-degree oblique chamfer angle, so that burrs generated by machining of the bearing outer ring 1 are removed, and the bearing outer ring 1 and the bearing inner ring 2 are convenient to assemble.
The outer surface of the bearing outer ring 1 is coated with a wear-resistant layer 11, the wear-resistant layer 11 can adopt CrN as a coating material, the thickness is 1.5-2mm, and the coating treatment is carried out by a multi-arc ion coating machine.
The outer surface of the bearing inner ring 2 is coated with a second high temperature resistant layer 21, and the inner surface of the bearing outer ring 1 is coated with a first high temperature resistant layer 12. The second high temperature resistant layer 21 and the first high temperature resistant layer 12 are both made of a polyether-ether-ketone composite material, the thickness of the second high temperature resistant layer is 0.5-1mm, and the second high temperature resistant layer and the first high temperature resistant layer are coated on the surfaces of the second high temperature resistant layer and the first high temperature resistant layer through laser.
The material adopted by the bearing outer ring 1 can be 45 steel or GCr15, and the bearing outer ring is processed by turning.
The material adopted by the bearing inner ring 2 can be GCr15, and has the characteristics of high hardness, good wear resistance, corrosion resistance, high contact fatigue strength and the like, after heat treatment, the hardness reaches HRc58-64, and the surface treatment of the bearing inner ring 2 is ball surface polishing chromium plating, so that the corrosion resistance and the oxidation resistance of the surface are improved.
The lining 3 is made of PTFE composite material and has the characteristics of low friction, high wear resistance and self lubrication.
The working principle is as follows: referring to fig. 1, a bearing outer ring 1 is nested outside a bearing inner ring 2, and a gasket 3 is installed between the bearing outer ring 1 and the bearing inner ring 2; the inner side of the bearing outer ring 1 is provided with an arc groove, and the liner 3 is filled in the arc groove; two sides of the arc groove are provided with symmetrical retaining shoulders for limiting the left and right movement of the gasket 3. The inner chamfer of the bearing inner ring 2 is a fillet, so that the installation is convenient, and the contact stress is effectively avoided. The outer surface of the bearing outer ring 1 is coated with a wear-resistant layer 11, the outer surface of the bearing inner ring 2 is coated with a second high-temperature-resistant layer 21, and the inner surface of the bearing outer ring 1 is coated with a first high-temperature-resistant layer 12.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope and embodiments of the present invention, and it should be appreciated by those skilled in the art that various equivalent and obvious modifications can be made in the present invention and the description and drawings, and all such modifications are intended to be included within the scope and spirit of the present invention.
Claims (10)
1. A self-lubricating radial spherical plain bearing characterized in that: the method comprises the following steps:
the bearing comprises a bearing outer ring (1), a bearing inner ring (2) and a gasket (3); the bearing outer ring (1) is nested on the outer side of the bearing inner ring (2), and the gasket (3) is installed between the bearing outer ring (1) and the bearing inner ring (2);
the bearing is characterized in that an arc groove is formed in the inner side of the bearing outer ring (1), and the gasket (3) is filled in the arc groove.
2. Self-lubricating radial spherical plain bearing according to claim 1, characterized in that: and the two sides of the arc groove are symmetrically provided with retaining shoulders for limiting the left and right movement of the gasket (3).
3. Self-lubricating radial spherical plain bearing according to claim 1, characterized in that: the bearing inner ring (2) is provided with an axial through hole, and inner chamfers are machined on two sides of the axial through hole.
4. Self-lubricating radial spherical plain bearing according to claim 3, characterized in that: and the inner chamfer angles of the bearing inner ring (2) are all round angles.
5. Self-lubricating radial spherical plain bearing according to claim 1, characterized in that: the inner chamfer angle of the bearing outer ring (1) is a 45-degree inclined chamfer angle.
6. Self-lubricating radial spherical plain bearing according to claim 1, characterized in that: the outer surface of the bearing outer ring (1) is coated with a wear-resistant layer (11).
7. Self-lubricating radial spherical plain bearing according to claim 1, characterized in that: the outer surface of the bearing inner ring (2) is coated with a second high-temperature-resistant layer (21), and the inner surface of the bearing outer ring (1) is coated with a first high-temperature-resistant layer (12).
8. Self-lubricating radial spherical plain bearing according to claim 6, characterized in that: the wear-resistant layer (11) adopts CrN as a coating material, and the thickness is 1.5-2mm.
9. The self-lubricating radial spherical plain bearing of claim 7, wherein: the second high temperature resistant layer (21) and the first high temperature resistant layer (12) are both made of polyether-ether-ketone composite materials, and the thickness of the second high temperature resistant layer and the first high temperature resistant layer is 0.5-1.5mm.
10. Self-lubricating radial spherical plain bearing according to claim 1, characterized in that: the bearing inner ring (2) is ball surface polished and chrome plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222776974.1U CN218440232U (en) | 2022-10-19 | 2022-10-19 | Self-lubricating radial spherical plain bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222776974.1U CN218440232U (en) | 2022-10-19 | 2022-10-19 | Self-lubricating radial spherical plain bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218440232U true CN218440232U (en) | 2023-02-03 |
Family
ID=85067730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222776974.1U Active CN218440232U (en) | 2022-10-19 | 2022-10-19 | Self-lubricating radial spherical plain bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218440232U (en) |
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2022
- 2022-10-19 CN CN202222776974.1U patent/CN218440232U/en active Active
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