CN210889734U - Joint bearing - Google Patents
Joint bearing Download PDFInfo
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- CN210889734U CN210889734U CN201921751258.XU CN201921751258U CN210889734U CN 210889734 U CN210889734 U CN 210889734U CN 201921751258 U CN201921751258 U CN 201921751258U CN 210889734 U CN210889734 U CN 210889734U
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- layer
- bearing
- bearing inner
- joint bearing
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Abstract
The utility model relates to a bearing technical field especially relates to a joint bearing, and the outer ball surface recombination of bearing inner circle has ceramic anti-corrosion wearing layer, and the one deck is bottom NiCr alloy-layer, has high corrosion resistance, and another layer adopts Al for the surface course2O3Layer, Cr2O3Layer, WC layer or Cr3C2The NiCr layer can further improve the corrosion resistance, the hardness and the abrasion resistance, and prolong the service life of the joint bearing.
Description
Technical Field
The utility model relates to a bearing technical field especially relates to a joint bearing.
Background
The joint bearing mainly comprises an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. The joint bearing is generally used for a low-speed oscillating motion (i.e., an angular motion), and since the sliding surface is spherical, a tilting motion (i.e., a centering motion) can be performed within a certain angular range. The outer surface of the inner spherical surface of the common joint bearing is plated with a layer of chromium, so that although certain corrosion resistance and wear resistance are improved, the joint bearing still generates abrasion after long-time use, and the service life and the corrosion resistance effect of the joint bearing are influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problem, the utility model provides a joint bearing.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a joint bearing, includes bearing inner race and bearing inner race, the internal surface of bearing inner race is concave cambered surface, the surface of bearing inner race is convex cambered surface, be provided with surface course and bottom between bearing inner race and the bearing outer race, the bottom sets up on the surface of bearing inner race, and the bottom adopts the NiCr alloy layer, the surface course sets up on the surface of bottom, and the surface course adopts Al2O3Layer, Cr2O3Layer, WC layer or Cr3C2-a layer of NiCr.
Further, specifically, preferably, the bottom layer is uniformly coated on the outer surface of the bearing inner ring, and the thickness of the bottom layer is 60-120 μm.
Further, specifically, preferably, the top layer is uniformly coated on the surface of the bottom layer, and the thickness of the top layer is 100-200 μm.
The beneficial effects of the utility model are that, the utility model discloses a joint bearing, the outer ball surface recombination of bearing inner circle has the anticorrosive wearing layer of pottery, and the one deck is the NiCr alloy-layer for the bottom, has high corrosion resistance, and another layer adopts Al for the surface course2O3Layer, Cr2O3Layer, WC layer or Cr3C2The NiCr layer can further improve the corrosion resistance, the hardness and the abrasion resistance, and prolong the service life of the joint bearing.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the joint bearing of the present invention.
Fig. 2 is a schematic view of the structure of the bearing inner ring of the joint bearing of the present invention.
In the figure: 1. bearing outer ring, 2, bearing inner ring, 21, surface layer, 22, bottom layer.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in FIGS. 1 and 2, the best embodiment of the present invention is a joint bearing, which comprises a bearing outer ring 1 and a bearing inner ring 2, wherein the inner surface of the bearing outer ring 1 is a concave arc surface, the outer surface of the bearing inner ring 2 is a convex arc surface, a surface layer 21 and a bottom layer 22 are arranged between the bearing outer ring 1 and the bearing inner ring 2, the bottom layer 22 is arranged on the outer surface of the bearing inner ring 2, the bottom layer 22 adopts a NiCr alloy layer, the surface layer 21 is arranged on the surface of the bottom layer 22, and the surface layer 21 adopts Al2O3Layer, Cr2O3Layer, WC layer or Cr3C2-a layer of NiCr. The bottom layer 22 is uniformly coated on the outer surface of the bearing inner ring 2, and the thickness of the bottom layer 22 is 60-120 mu m. The surface layer 21 is uniformly coated on the surface of the bottom layer 22, and the thickness of the surface layer 21 is 100-200 μm.
The utility model discloses a joint bearing, the outer ball surface recombination of bearing inner circle has ceramic anticorrosive wearing layer, and the one deck is bottom 22 NiCr alloy layer promptly, has high strength wear-resisting and corrosion resistance, and another one deck adopts Al for surface course 212O3Layer, Cr2O3Layer, WC layer or Cr3C2The NiCr layer can further improve the corrosion resistance, the hardness and the abrasion resistance, and prolong the service life of the joint bearing.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. The utility model provides a joint bearing, includes bearing inner race (2) and bearing outer race (1), the internal surface of bearing inner race (1) is the concave cambered surface, the surface of bearing inner race (2) is convex cambered surface, its characterized in that: be provided with surface course (21) and bottom (22) between bearing inner race (2) and bearing outer race (1), bottom (22) set up on the surface of bearing inner race (2), and bottom (22) adopt the NiCr alloy layer, surface course (21) set up on the surface of bottom (22), and surface course (21) adopt Al2O3Layer, Cr2O3Layer, WC layer or Cr3C2-a layer of NiCr.
2. The spherical plain bearing of claim 1, wherein: the bottom layer (22) is uniformly coated on the outer surface of the bearing inner ring (2), and the thickness of the bottom layer (22) is 60-120 mu m.
3. The spherical plain bearing of claim 1, wherein: the surface layer (21) is uniformly coated on the surface of the bottom layer (22), and the thickness of the surface layer (21) is 100-200 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751258.XU CN210889734U (en) | 2019-10-18 | 2019-10-18 | Joint bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751258.XU CN210889734U (en) | 2019-10-18 | 2019-10-18 | Joint bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889734U true CN210889734U (en) | 2020-06-30 |
Family
ID=71312609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921751258.XU Active CN210889734U (en) | 2019-10-18 | 2019-10-18 | Joint bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996502A (en) * | 2020-08-31 | 2020-11-27 | 中国科学院上海光学精密机械研究所 | Nickel-chromium alloy surface coating structure and preparation method thereof |
-
2019
- 2019-10-18 CN CN201921751258.XU patent/CN210889734U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996502A (en) * | 2020-08-31 | 2020-11-27 | 中国科学院上海光学精密机械研究所 | Nickel-chromium alloy surface coating structure and preparation method thereof |
| CN111996502B (en) * | 2020-08-31 | 2022-09-02 | 中国科学院上海光学精密机械研究所 | Nickel-chromium alloy surface coating structure and preparation method thereof |
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