Polymer composite elbow plane bearing with oil storage holes
By rolling oil storage holes in polymer composite elbow plane bearings and adding lubricating oil, the mechanical failure problem of oil-free sliding bearings in the prior art is solved when there is a lack of lubricating oil, and stable operation at low speed or without lubricating oil is achieved, reducing maintenance frequency and extending service life.
Patent Information
- Application Number
- CN202422009881.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-19
AI Technical Summary
Existing polymer oil-free sliding bearings and plane sliding bearings are prone to mechanical failures when there is a lack of lubricating oil, and the structure is complex and maintenance is difficult.
A polymer composite elbow plane bearing with oil storage pockets is designed. By rolling evenly distributed oil storage pockets on the surface of the polymer material layer, and adding lubricating oil to the elbow positioning structure, it ensures that it can still work normally at low speed or without lubricating oil.
It achieves the effect of long-term stable operation in low lubricant or low-speed and no lubricant, reduces maintenance frequency, extends service life, and simplifies structural design.
Smart Images
Figure CN222863907U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sliding bearing, in particular to a high molecular composite material elbow plane bearing with an oil storage hole. Background Art
[0002] Bearings and plane bearings are widely used in mechanical equipment, such as friction pairs in rotating parts and sliding parts of machinery, but most of these bearings are rolling bearings and ball plane bearings. These bearings are generally used in situations with large volume, high speed, large load, and high manufacturing cost. Some mechanical devices require small volume, light weight, low speed and small load during operation, so oil-free bearings and plane sliding bearings made of polymer composite materials should be used. At present, the polymer oil-free sliding bearings and plane sliding bearings on the market do not have oil storage holes. During use, once the friction pair lacks lubricating oil, the mechanical shaft will "bite" and serious mechanical failure will occur. Therefore, many places where oil-free sliding bearings and plane sliding bearings are used have to use forced lubrication, such as oil spraying or oil bath lubrication, which makes the product structure too complicated, and once there is less oil or the oil channel is blocked, the lubrication requirements cannot be met. Especially when the mechanical equipment is just started, the lubrication is still not very sufficient, and it is easy to cause the bearing to "bite", which seriously limits the use conditions of ordinary sliding bearings. Utility Model Content
[0003] The utility model aims to provide a plane sliding bearing with an oil storage hole and an elbow for positioning, which has low manufacturing cost, long service life, reliable positioning and can work under the condition of less lubricating oil or low speed without lubricating oil.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it is a circular annular plane sliding bearing composited by a bottom steel layer, a copper powder layer and a polymer material layer in sequence, characterized in that concave and evenly distributed oil storage holes are rolled on the surface of the polymer material layer, and an elbow bent downward toward the steel layer for positioning is connected to the outer circumference of the circular annular plane sliding bearing, wherein the thickness of the copper powder layer is 0.2-0.3 mm, the thickness of the polymer material layer is 0.2-0.4 mm, and the depth of the oil storage hole is 0.15-0.4 mm.
[0005] The polymer material is polyetheretherketone (PEEK) or polytetrafluoroethylene (PTFE) or polyoxymethylene (POM).
[0006] The total area of the oil storage holes accounts for 30%-40% of the surface area of the polymer material layer.
[0007] A polymer composite elbow plane bearing with an oil storage hole designed according to the above technical solution adopts a plate of polymer composite material, and is made by rolling oil holes, blanking, forming, and elbowing. It has low manufacturing cost, simple process, and reliable positioning. For kinematic pairs with low rotation speed, as long as lubricating oil / grease is added to the oil storage hole during installation, lubricating oil / grease does not need to be added for a long time, which has the advantages of less maintenance or maintenance-free, and long service life. The plane sliding bearing of the polymer composite material is fixed on the machine, and the side positioning on the sliding bearing seat is achieved by the elbow, so that after the plane sliding bearing is installed, when the mechanical shaft rotates, the plane sliding bearing will not rotate. The polymer composite material is composited by a steel layer, a copper powder layer and a polymer material layer, wherein the oil storage hole is rolled on the surface of the polymer material layer, and the manufacturing process is simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a front view of the elbow plane bearing of the polymer material with oil storage hole of the present application;
[0009] Figure 2 yes Figure 1 A--A section view;
[0010] Figure 3 yes Figure 2 K-direction view;
[0011] Figure 4 yes Figure 2 A partial enlarged view of the F area.
[0012] In the figure: 1. Steel layer; 2. Copper powder layer; 3. Polymer material layer; 4. Circular plane sliding bearing; 5. Elbow; 6. Oil storage hole. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0014] Figures 1 to 4The invention is a schematic diagram of the structure of a polymer composite elbow plane bearing with oil storage holes. As can be seen from the figure, it is a circular plane sliding bearing 4 composed of a bottom steel layer 1, a copper powder layer 2 and a polymer material layer 3, and an elbow 5 bent downward toward the steel layer 1 for positioning is connected to the outer circumference of the circular plane sliding bearing 4. The copper powder layer 2 is sintered on the steel layer 1, and concave and evenly distributed circular oil storage holes 6 are rolled on the surface of the polymer material layer 3. The total area of the oil storage holes 6 accounts for 30%-40% of the surface area of the polymer material layer 3, wherein the thickness of the copper powder layer 2 is 0.2-0.3 mm, the thickness of the polymer material layer 3 is 0.2-0.4 mm, and the depth of the oil storage holes 6 is 0.15-0.4 mm. The polymer material is polyetheretherketone (PEEK) or polytetrafluoroethylene (PTFE) or polyoxymethylene (POM).
Claims
1. A polymer composite elbow plane bearing with an oil storage hole, which is a circular plane sliding bearing composed of a bottom steel layer, a copper powder layer and a polymer material layer, and is characterized by: Evenly distributed concave oil storage holes are rolled on the surface of the polymer material layer, and an elbow bent downward toward the steel layer for positioning is connected to the outer circumference of the annular plane sliding bearing. The thickness of the copper powder layer is 0.2-0.3 mm, the thickness of the polymer material layer is 0.2-0.4 mm, and the depth of the oil storage holes is 0.15-0.4 mm.
2. The polymer composite elbow plane bearing with oil storage holes according to claim 1 is characterized by: The polymer material is polyetheretherketone (PEEK) or polytetrafluoroethylene (PTFE) or polyoxymethylene (POM).
3. The polymer composite elbow plane bearing with oil storage holes according to claim 1, characterized in that The total area of the oil storage holes accounts for 30%-40% of the surface area of the polymer material layer.