High-hardness integral solid embedded self-lubricating bearing

Abstract

The utility model relates to the field of bearings, in particular to a high-hardness integral solid embedded self-lubricating bearing which comprises a bearing base body, an annular groove and a plurality of mounting grooves are formed in the bearing base body, and the direction of the mounting grooves is consistent with the direction of a rotating shaft of the bearing base body. The multiple mounting grooves are evenly distributed in the circumferential direction of the bearing base body, and self-lubricating strips are arranged in the mounting grooves. Through the arrangement of the ring groove, the mounting groove and the self-lubricating strip, under the condition that the function of the bearing is achieved, punching is not needed, polishing can be conducted after integral casting, the rough machining time and the finish machining time of a single bearing are shortened, and therefore the yield is increased.

Description

Technical Field

[0001] This utility model relates to the field of bearings, and in particular to a high-hardness integral solid-insulated self-lubricating bearing. Background Technology

[0002] Self-lubricating bearings are bearings whose rolling elements, inner and outer ring raceways, or cages are treated with special materials, allowing them to function normally without the need for oil or grease lubricants. Based on their lubrication mechanism, self-lubricating bearings can be divided into two types: bearings whose self-lubricating properties are generated by the self-lubricating material itself, and bearings whose self-lubricating properties are generated by the properties of sintered microporous materials. Commonly, inlaid self-lubricating bearings are manufactured by drilling holes and then embedding the self-lubricating material in the air. However, for products with thicker walls, drilling a single hole takes a long time, and the number of holes is large, resulting in a significant time commitment for drilling, leading to longer processing times and higher product costs.

[0003] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a high-hardness integral solid-insulated self-lubricating bearing. This invention is achieved through the following technical solution:

[0005] A high-hardness integral solid-embedded self-lubricating bearing includes a bearing base, wherein an annular groove and several mounting grooves are provided inside the bearing base, the direction of the mounting grooves is consistent with the direction of the rotation axis of the bearing base, and the several mounting grooves are evenly distributed along the circumference of the bearing base, and a self-lubricating strip is provided in the mounting groove.

[0006] In the above technical solution: the bearing base is used to support the other components and set the basic shape of the bearing; the annular groove is used to reduce the contact area between the inner surface of the bearing base and the rotating shaft, thereby reducing friction; the mounting groove is used to set the self-lubricating strip; the self-lubricating strip is used to reduce the coefficient of friction through debris when the rotating shaft rotates, thereby reducing friction.

[0007] A further feature of this invention is that the annular groove is coaxial with the bearing base.

[0008] In the above technical solution, the annular groove is coaxial with the bearing base, making the bearing structure more uniform and ensuring structural strength.

[0009] A further feature of this invention is that the depth of the mounting groove is greater than the depth of the annular groove.

[0010] In the above technical solution, the depth of the mounting groove is greater than the depth of the annular groove, so that the sidewall of the self-lubricating strip can also be supported after installation, reducing the possibility of breakage.

[0011] A further feature of this invention is that the size of the self-lubricating strip is consistent with the size of the mounting groove.

[0012] In the above technical solution: the size of the self-lubricating strip is consistent with the size of the mounting groove, which is used to reduce the shaking of the self-lubricating strip and make it tightly bonded to the bearing base.

[0013] A further feature of this invention is that the surface of the self-lubricating strip away from the bottom of the mounting groove is an arc surface, and the radius of the arc surface is consistent with the radius of the bearing base.

[0014] In the above technical solution, the surface of the self-lubricating strip away from the bottom of the mounting groove is arc-shaped, which ensures that the self-lubricating strip makes full contact with the rotating shaft.

[0015] A further feature of this invention is that the width of the annular groove is smaller than the width of the bearing base.

[0016] In the above technical solution, the width of the annular groove is smaller than the width of the bearing base, so that dust is not easily allowed to enter the annular groove after it is assembled with the rotating shaft.

[0017] A further feature of this invention is that the annular groove can also be filled with polytetrafluoroethylene.

[0018] In the above technical solution, filling with polytetrafluoroethylene can further reduce the coefficient of friction of the surface in contact with the rotating shaft, thereby reducing friction.

[0019] This utility model discloses a high-hardness integral solid-insulated self-lubricating bearing, which, compared with the prior art:

[0020] 1. This utility model, by setting an annular groove, mounting groove and self-lubricating strip, enables the bearing to perform its function without drilling. It can be cast as a whole and then polished, reducing the rough and fine machining time of a single bearing and thus increasing production.

[0021] 2. This utility model reduces the contact area between the bearing base and the rotating shaft by setting the mounting groove, and reduces the friction coefficient between the bearing base and the rotating shaft by setting the self-lubricating strip, thereby reducing friction.

[0022] 3. By making the depth of the mounting groove greater than the depth of the annular groove, the two side walls of the self-lubricating strip can be supported to a certain extent, thereby reducing the possibility of the self-lubricating strip breaking during rotation. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a perspective view of the bearing base of this utility model;

[0026] Figure 4 This is a cross-sectional view of an embodiment of the present invention that incorporates polytetrafluoroethylene.

[0027] The numbers and letters in the diagram represent the following component names: 10-bearing base; 101-ring groove; 102-mounting groove; 20-self-lubricating strip; 201-arc surface; 30-polytetrafluoroethylene (PTFE). Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0029] like Figure 1-4 As shown, this utility model proposes a high-hardness integral solid-insulated self-lubricating bearing, including a bearing base 10. The bearing base 10 has an annular groove 101 and several mounting grooves 102 inside. The mounting grooves 102 are aligned with the rotation axis of the bearing base 10, and the mounting grooves 102 are evenly distributed along the circumference of the bearing base 10. A self-lubricating strip 20 is disposed within each mounting groove 102. The bearing base 10 is cylindrical. Preferably, the annular groove 101 and the mounting grooves 102 are integrally cast during the casting of the bearing base 10. The casting mold may include an outer mold and an inner core. The inner core should also have structures corresponding to the annular groove 101 and the mounting grooves 102, and these two structures are separable from the inner core. Preferably, there are 10 mounting grooves 102. The self-lubricating strip 20 is made of graphite and is installed using a transition or interference fit for easy replacement.

[0030] like Figure 1-4 As shown, the present invention proposes a high-hardness integral solid-embedded self-lubricating bearing, wherein the annular groove 101 is coaxial with the bearing base 10.

[0031] like Figure 1-4 As shown, the present invention proposes a high-hardness integral solid embedded self-lubricating bearing, wherein the depth of the mounting groove 102 is greater than the depth of the annular groove 101.

[0032] like Figure 1-4 As shown, this utility model proposes a high-hardness integral solid embedded self-lubricating bearing, wherein the size of the self-lubricating strip 20 is consistent with the size of the mounting groove 102.

[0033] like Figure 1-4As shown, the present invention proposes a high-hardness integral solid inlaid self-lubricating bearing, wherein the surface of the self-lubricating strip 20 away from the bottom surface of the mounting groove 102 is an arc surface 201, and the radius of the arc surface 201 is consistent with the radius of the bearing base 10.

[0034] like Figure 1-4 As shown, the present invention proposes a high-hardness integral solid embedded self-lubricating bearing, wherein the width of the annular groove 101 is smaller than the width of the bearing base 10.

[0035] like Figure 1-4 As shown, this utility model proposes a high-hardness integral solid-insulated self-lubricating bearing, in which the annular groove 101 can also be filled with polytetrafluoroethylene (PTFE) 30. After the PTFE 30 is filled, the inner circular surface needs to be machined to ensure roundness and dimensional accuracy.

[0036] The working principle of this utility model is as follows:

[0037] a) Assemble the rotating shaft with this technical solution;

[0038] b) The inner wall of the bearing base is in contact with the rotating shaft, and the bearing base is fixed to the bearing housing;

[0039] c) When the rotating shaft rotates, it comes into contact with and rubs against the self-lubricating block, causing graphite fragments to fall off the self-lubricating block.

[0040] d) Graphite fragments provide lubrication.

[0041] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high-hardness integral solid-insulated self-lubricating bearing, characterized in that: The bearing includes a bearing base (10), which has an annular groove (101) and a plurality of mounting grooves (102) inside. The mounting grooves (102) are aligned with the direction of the rotation axis of the bearing base (10), and the plurality of mounting grooves (102) are evenly distributed along the circumference of the bearing base (10). A self-lubricating strip (20) is provided in the mounting groove (102).

2. The high-hardness integral solid-insulated self-lubricating bearing according to claim 1, characterized in that: The annular groove (101) is coaxial with the bearing base (10).

3. The high-hardness integral solid-insulated self-lubricating bearing according to claim 1, characterized in that: The depth of the mounting groove (102) is greater than the depth of the annular groove (101).

4. The high-hardness integral solid-insulated self-lubricating bearing according to claim 1, characterized in that: The dimensions of the self-lubricating strip (20) are the same as the dimensions of the mounting groove (102).

5. The high-hardness integral solid-insulated self-lubricating bearing according to claim 1, characterized in that: The surface of the self-lubricating strip (20) away from the bottom surface of the mounting groove (102) is an arc surface (201), and the radius of the arc surface (201) is consistent with the radius of the bearing base (10).

6. The high-hardness integral solid-insulated self-lubricating bearing according to claim 1, characterized in that: The width of the annular groove (101) is smaller than the width of the bearing base (10).

7. A high-hardness integral solid-insulated self-lubricating bearing according to any one of claims 1 to 6, characterized in that: The annular groove (101) may also be filled with polytetrafluoroethylene (30).

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