Joint bearing
By arranging a guide surface in the lubricating oil hole of the spherical bearing, the problem of difficulty in guiding lubricant to the contact surface between the outer ring and the inner ring is solved, achieving more efficient lubrication and reducing maintenance costs.
Patent Information
- Application Number
- CN202421272247.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-06-05
AI Technical Summary
Now, when lubricant is added to the joint bearing, it is difficult to effectively guide the contact surface between the outer ring and the inner ring, resulting in high maintenance costs.
The guide surface is designed to be in the first lubricating oil hole or the second lubricating oil hole, and the guide surface is inclined toward the gap between the outer ring and the inner ring to ensure that lubricant can flow into the gap between the outer ring and the inner ring.
The lubricant is guided to the gap between the outer ring and the inner ring through the guide surface, which improves the efficiency of lubrication and filling, and reduces maintenance costs.
Smart Images
Figure CN222376993U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of spherical bearings, and in particular relates to a spherical bearing. Background Art
[0002] The automobile shock absorber is an important component in the automobile suspension system. It mainly plays the role of shock absorption and supporting the vehicle body. The main function of the shock absorber joint bearing in the automobile shock absorber is to connect the wheel and the vehicle body and allow the wheel to swing and tilt at a certain angle during driving. This swing and tilt can effectively absorb the impact and vibration caused by uneven road surface, thereby improving the ride comfort and driving stability of the car. This structure enables the joint bearing to withstand large loads and adapt to various complex movement modes.
[0003] Due to the harsh working environment and the need to withstand large loads and friction, the lubrication of spherical bearings is particularly important. Generally speaking, spherical bearings are lubricated with special grease, which can ensure that the spherical bearings maintain good lubrication under long-term, high-load working conditions. It should be noted that the grease of spherical bearings needs to be replaced and replenished regularly to ensure that they are always in the best working condition. At the same time, regular inspection and maintenance of spherical bearings are also required to promptly detect and deal with possible problems to ensure the normal operation of automobile shock absorbers and driving safety.
[0004] In the prior art, a joint bearing is mainly composed of an outer ring and an inner ring, the inner ring is provided with an inner spherical surface, the outer ring is provided with a first lubricating oil hole, the inner ring is provided with a second lubricating oil hole, the inner spherical surface is provided with a lubricating oil groove, the second lubricating oil hole and the lubricating oil groove are connected, and the first lubricating oil hole and the second lubricating oil hole can be connected to each other by rotating the outer ring or the inner ring. The above-mentioned arrangement is mainly to allow the lubricating oil to enter the lubricating oil groove through the first lubricating oil hole and the second lubricating oil hole. However, since the filling of lubricant is time-consuming and labor-intensive, if the lubricant is only directed to the inner spherical surface, the contact surface between the outer ring and the inner ring cannot be taken care of, and the maintenance cost of the joint bearing is a bit too high. Therefore, the utility model proposes a joint bearing. Utility Model Content
[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a spherical bearing with a guide surface. When filling, the lubricant can not only flow to the inner spherical surface, but also flow to the gap between the outer ring and the inner ring, thereby improving the efficiency of lubrication.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A spherical bearing comprises an outer ring and an inner ring, wherein the inner ring is rotatably arranged inside the outer ring, the inner ring is provided with an inner spherical surface, the outer ring is provided with a first lubricating oil hole, the inner ring is provided with a second lubricating oil hole, the first lubricating oil hole is connected to the outside and the second lubricating oil hole, and the second lubricating oil hole is connected to the inner spherical surface, characterized in that: the first lubricating oil hole or the second lubricating oil hole is provided with a guide surface, the guide surface is inclined toward the gap between the outer ring and the inner ring, and the guide surface is used to guide the lubricant in the first lubricating oil hole or the second lubricating oil hole into the gap.
[0008] Furthermore, the inner spherical surface is provided with a first lubricating oil groove, and the first lubricating oil groove is annular.
[0009] Furthermore, the second lubricating oil holes are arranged in the first lubricating oil groove, and the second lubricating oil holes are arranged at intervals around the first lubricating oil groove.
[0010] Furthermore, a sealing member is provided in the first lubricating oil hole, and the sealing member is provided with an elastic socket, and the socket is used for inserting the filling pipe.
[0011] Furthermore, the sealing member includes a rubber plug, and the rubber plug is provided with an abutment portion, and the abutment portion is used to abut against the end of the first lubricating oil hole.
[0012] Furthermore, rubber sheets are arranged at intervals in the rubber plug, and insertion openings are arranged on the rubber sheets, and buffer grooves are formed between the rubber sheets.
[0013] Furthermore, the socket adopts a cross shape.
[0014] Furthermore, a filling groove is formed at the end of the outer ring and the outside of the inner ring, and the filling groove communicates with the gap between the outer ring and the inner ring, so that the lubricant enters the gap through the filling groove.
[0015] Furthermore, the inner spherical surface is also provided with a plurality of second lubricating oil grooves, the second lubricating oil grooves are connected to the first lubricating oil grooves, and the first lubricating oil grooves and the second lubricating oil grooves are distributed on the inner spherical surface in a tree-branch shape.
[0016] Furthermore, a lubricating layer is provided on the outside of the outer ring and the inner ring, and the lubricating layer is made of molybdenum disulfide.
[0017] The utility model has the following beneficial effects due to the adoption of the above technical solution:
[0018] The utility model comprises an outer ring and an inner ring, the inner ring is rotatably arranged inside the outer ring, the inner ring is provided with an inner spherical surface, the outer ring is provided with a first lubricating oil hole, the inner ring is provided with a second lubricating oil hole, the first lubricating oil hole is connected to the outside and the second lubricating oil hole, the second lubricating oil hole is connected to the inner spherical surface, the first lubricating oil hole or the second lubricating oil hole is provided with a guide surface, the guide surface is inclined toward the gap between the outer ring and the inner ring, the guide surface is used to guide the lubricant in the first lubricating oil hole or the second lubricating oil hole into the gap, so that the lubricant is not only introduced into the inner spherical surface, but also introduced into the gap between the outer ring and the inner ring, the filling direction of the lubricant is expanded, the filling efficiency is improved, and the utility model has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described below in conjunction with the accompanying drawings:
[0020] Figure 1 This is the first embodiment of the present utility model;
[0021] Figure 2 for Figure 1 Sectional view at AA in the middle;
[0022] Figure 3 This is the second embodiment of the present utility model;
[0023] Figure 4 is a side view of the sealing member in the second embodiment;
[0024] Figure 5 for Figure 4 Sectional view at the middle BB;
[0025] Figure 6 for Figure 2 Enlarged view of point a in the middle.
[0026] In the figure, 1-outer ring; 2-inner ring; 3-filling groove; 4-first lubricating oil hole; 5-second lubricating oil hole; 6-guide surface; 7-first lubricating oil groove; 8-inner spherical surface; 9-second lubricating oil groove; 10-seal; 11-abutment part; 12-rubber plug; 13-rubber sheet; 14-buffer groove. DETAILED DESCRIPTION
[0027] like Figures 1 to 6As shown, a spherical bearing of the utility model comprises an outer ring 1 and an inner ring 2. Lubricating layers are provided on the outside of the outer ring 1 and the inner ring 2. The lubricating layers are made of molybdenum disulfide, so that the inner ring 2 can rotate smoothly inside the outer ring 1. The inner ring 2 is provided with an inner spherical surface 8. The outer ring 1 is provided with a first lubricating oil hole 4. The inner ring 2 is provided with a second lubricating oil hole 5. The first lubricating oil hole 4 is connected to the outside and the second lubricating oil hole 5. The second lubricating oil hole 5 is connected to the inner spherical surface 8. In the utility model, a guide surface 6 is provided at the end of the second lubricating oil hole 5. The guide surface 6 is inclined toward the gap between the outer ring 1 and the inner ring 2. The guide surface 6 is used to guide the lubricant in the second lubricating oil hole 5 into the gap, so that the contact surface of the outer ring 1 and the inner ring 2 can also be lubricated, reducing the waste of lubricant.
[0028] The inner spherical surface 8 is provided with an annular first lubricating oil groove 7, the first lubricating oil groove 7 is connected to the second lubricating oil hole 5, and the second lubricating oil hole 5 is arranged at intervals around the first lubricating oil groove 7. A sealing member 10 is provided in the first lubricating oil hole 4, and the sealing member 10 includes a rubber plug 12 and a rubber sheet 13. The rubber plug 12 is provided with rubber sheets 13 arranged at intervals, and a plug is provided on the rubber sheet 13, and the plug is used to insert the filling pipe. Buffer grooves 14 are formed between the rubber sheets 13, and the lubricant is prevented from leaking out of the first lubricating oil hole 4 by setting a plurality of grooves. The rubber plug 12 is provided with an abutting portion 11, and the abutting portion 11 is used to abut against the end of the first lubricating oil hole 4, and the support of the end prevents the rubber plug 12 from slipping when the filling pipe is inserted.
[0029] The end of the outer ring 1 and the outside of the inner ring 2 form a filling groove 3, which is connected to the gap between the outer ring 1 and the inner ring 2, so that the lubricant enters the gap through the filling groove 3. The inner spherical surface 8 is also provided with a plurality of second lubricating oil grooves 9, which are connected to the first lubricating oil grooves 7. The first lubricating oil grooves 7 and the second lubricating oil grooves are distributed on the inner spherical surface 8 in a tree-like shape, which increases the distribution range of the lubricant and improves the lubricity of the inner spherical surface 8.
[0030] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.
Claims
1. A spherical bearing, comprising an outer ring and an inner ring, wherein the inner ring is rotatably arranged inside the outer ring, the inner ring is provided with an inner spherical surface, the outer ring is provided with a first lubricating oil hole, the inner ring is provided with a second lubricating oil hole, the first lubricating oil hole is connected to the outside and the second lubricating oil hole, and the second lubricating oil hole is connected to the inner spherical surface, characterized in that: The first lubricating oil hole or the second lubricating oil hole is provided with a guide surface, the guide surface is inclined toward the gap between the outer ring and the inner ring, and the guide surface is used to guide the lubricant in the first lubricating oil hole or the second lubricating oil hole into the gap.
2. A spherical plain bearing according to claim 1, characterized in that: The inner spherical surface is provided with a first lubricating oil groove, and the first lubricating oil groove is annular.
3. A spherical plain bearing according to claim 2, characterized in that: The second lubricating oil holes are disposed in the first lubricating oil groove, and the second lubricating oil holes are arranged at intervals around the first lubricating oil groove.
4. The spherical plain bearing according to claim 1, characterized in that: A sealing member is arranged in the first lubricating oil hole, and the sealing member is provided with an elastic socket, and the socket is used for inserting a filling pipe.
5. A spherical plain bearing according to claim 4, characterized in that: The sealing member includes a rubber plug, and the rubber plug is provided with an abutment portion, and the abutment portion is used to abut against an end portion of the first lubricating oil hole.
6. The spherical plain bearing according to claim 5, characterized in that: The rubber plug is provided with rubber sheets arranged at intervals, the rubber sheets are provided with the insertion openings, and buffer grooves are formed between the rubber sheets.
7. The spherical plain bearing according to claim 4, characterized in that: The socket is in a cross shape.
8. The spherical plain bearing according to claim 1, characterized in that: The end of the outer ring and the outside of the inner ring form a filling groove, and the filling groove communicates with the gap between the outer ring and the inner ring, so that the lubricant enters the gap through the filling groove.
9. The spherical plain bearing according to claim 2, characterized in that: The inner spherical surface is further provided with a plurality of second lubricating oil grooves, the second lubricating oil grooves are connected to the first lubricating oil grooves, and the first lubricating oil grooves and the second lubricating oil grooves are distributed on the inner spherical surface in a tree-branch shape.
10. The spherical plain bearing according to claim 1, characterized in that: A lubricating layer is provided on the outside of the outer ring and the inner ring, and the lubricating layer is made of molybdenum disulfide.