Wear-resistant self-lubricating copper bush

Abstract

The utility model discloses a wear-resistant self-lubricating copper bush which comprises a copper bush body. The copper sleeve body comprises an inner sleeve and an outer sleeve, the inner sleeve is a cylindrical barrel with an upper opening and a lower opening on the whole, mounting contact parts are arranged at the upper end and the lower end of the inner sleeve, and the middle section of the inner sleeve is a graphite mounting part; a plurality of graphite mounting grooves are uniformly formed in the inner wall of the graphite mounting part of the inner sleeve, the graphite mounting grooves penetrate through the graphite mounting part, and a graphite column is mounted in the graphite mounting part; meanwhile, the inner end of the graphite column is flush with the inner wall of the inner sleeve, and the outer end of the graphite column penetrates out of the graphite mounting groove; the overall appearance of the self-lubricating copper bush is kept similar to that of a traditional self-lubricating copper bush, and the application range of the self-lubricating copper bush cannot be affected. And meanwhile, the graphite column can be pushed inwards by adjusting the outer sleeve, so that the graphite column on the inner side of the copper sleeve body 1 can be supplemented after being abraded.

Description

Technical Field

[0001] This utility model relates to the field of self-lubricating copper bushings, specifically wear-resistant self-lubricating copper bushings. Background Technology

[0002] Copper bushings come in various types, including machine copper rollers and copper bearings. Oil-lubricated bearings are used in various large and heavy machinery and are important components of machinery. Self-lubricating copper bushings are the most common type of copper bushing. Most self-lubricating copper bushings on the market have through grooves, and the through grooves are filled with materials such as graphite.

[0003] For example, patent CN220890795U discloses a self-lubricating bearing, including a copper sleeve body. The copper sleeve body has a plurality of through holes evenly provided for placing graphite blocks. The graphite blocks are installed in the through holes by elastic components. A fixing ring assembly is provided on the outside of the copper sleeve body. The fixing ring assembly presses the elastic component to drive the graphite blocks to contact the optical axis, thereby increasing the lubrication of the optical axis sliding. This self-lubricating bearing keeps the graphite blocks in contact with the optical axis at all times by the fixing ring assembly pressing the elastic component, thereby increasing the lubrication of the optical axis sliding through the copper sleeve body. The graphite blocks are detachably installed in the mounting base.

[0004] When using the above patent, the graphite block is not in contact with the optical axis after it is completely consumed. At this time, the fixing ring assembly is opened so that the graphite block can be taken out for replacement. However, the disadvantage of the above patent is that the first and second connecting plates extending outward will damage the shape of the bearing, making the shape not cylindrical, thus narrowing the application scope of the above patent.

[0005] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a wear-resistant, self-lubricating copper sleeve to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A wear-resistant, self-lubricating copper bushing includes a copper bushing body. The copper bushing body includes an inner sleeve and an outer sleeve. The inner sleeve is a cylindrical body with openings at both ends. The upper and lower ends of the inner sleeve have mounting contact portions, and the middle section of the inner sleeve is a graphite mounting portion. Several graphite mounting grooves are evenly distributed on the inner wall of the graphite mounting portion of the inner sleeve. These grooves penetrate the graphite mounting portion, and graphite columns are installed inside the graphite mounting portion. The inner ends of the graphite columns are flush with the inner wall of the inner sleeve, while the outer ends protrude through the graphite mounting grooves. The outer ends of the graphite columns abut against the inner wall of the outer sleeve. The outer sleeve is also a cylindrical body with openings at both ends. The inner wall of the outer sleeve is inclined, meaning the inner diameter of the outer sleeve gradually decreases from bottom to top.

[0009] Furthermore, the inner diameter of the mounting contact portion is less than or equal to the inner diameter of the graphite mounting portion, and the outer diameter of the mounting contact portion is greater than the outer diameter of the graphite mounting portion.

[0010] Furthermore, the outer diameter of the outer sleeve is less than or equal to the outer diameter of the mounting contact portion.

[0011] Furthermore, the top of the inner wall of the outer sleeve is provided with an internal thread, and the top of the outer wall of the graphite mounting part of the inner sleeve is provided with an external thread, with the internal thread and the external thread meshing with each other.

[0012] Furthermore, the outer sleeve includes two symmetrically arranged arc-shaped buckle plates. One arc-shaped buckle plate has a countersunk hole on its side wall, and the other arc-shaped buckle plate has a threaded hole corresponding to the countersunk hole. The countersunk hole and the threaded hole are internally threaded with fixing screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The overall shape remains similar to that of traditional self-lubricating copper sleeves, and will not affect the application scope of this utility model.

[0015] At the same time, by adjusting the outer sleeve, the graphite column can be pushed inward, so that the graphite column inside the copper sleeve body 1 can be replenished after wear. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a wear-resistant, self-lubricating copper bushing.

[0017] Figure 2 This is a front view of a wear-resistant, self-lubricating copper bushing.

[0018] Figure 3 This is a side view of a wear-resistant, self-lubricating copper bushing.

[0019] Figure 4 This is a top view of a wear-resistant, self-lubricating copper bushing.

[0020] Figure 5This is an exploded view of a wear-resistant, self-lubricating copper bushing.

[0021] Figure 6 for Figure 3 Sectional view along the AA direction. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] Please see Figure 1-6 Wear-resistant self-lubricating copper bushing, including copper bushing body 1;

[0024] The copper sleeve body 1 includes an inner sleeve 2 and an outer sleeve 3. The inner sleeve 2 is a cylindrical body with openings at the top and bottom. The upper and lower ends of the inner sleeve 2 are provided with mounting contact parts 201. The middle section of the inner sleeve 2 is a graphite mounting part 202. The inner diameter of the mounting contact part 201 is less than or equal to the inner diameter of the graphite mounting part 202, and the outer diameter of the mounting contact part 201 is greater than the outer diameter of the graphite mounting part 202. The mounting contact part 201 is used to directly contact the inner wall of the mounting part during installation.

[0025] The inner sleeve 2 has a plurality of graphite mounting grooves 203 evenly formed on the inner wall of the graphite mounting part 202. The graphite mounting grooves 203 penetrate the graphite mounting part 202, and a graphite column 4 is installed inside the graphite mounting part 202. At the same time, the inner end of the graphite column 4 is flush with the inner wall of the inner sleeve 2, and the outer end of the graphite column 4 protrudes out of the graphite mounting groove 203. The outer end of the graphite column 4 abuts against the inner wall of the outer sleeve 3.

[0026] The outer sleeve 3 is a cylindrical body with openings at the top and bottom, and the outer diameter of the outer sleeve 3 is less than or equal to the outer diameter of the mounting contact part 201;

[0027] The inner wall of the outer sleeve 3 is inclined, that is, the inner diameter of the outer sleeve 3 gradually decreases from bottom to top;

[0028] In this solution, the top of the inner wall of the outer sleeve 3 is provided with an internal thread 310, and the top of the outer wall of the graphite mounting part 202 of the inner sleeve 2 is provided with an external thread 210. The internal thread 310 and the external thread 210 mesh with each other.

[0029] The outer sleeve 3 includes two symmetrically arranged arc-shaped buckle plates 301. One arc-shaped buckle plate has a countersunk hole 302 on its side wall, and the other arc-shaped buckle plate 301 has a threaded hole 303 corresponding to the countersunk hole 302. The countersunk hole 302 and the threaded hole 303 are internally threaded with fixing screws 304.

[0030] The outer sleeve 3 with this configuration will not damage the overall external structure of the copper sleeve. There are no outwardly protruding parts on the outside of the outer sleeve 3, so it will not interfere with the use of the copper sleeve.

[0031] When this utility model is in use, as the graphite column 4 is gradually worn down, the outer sleeve 3 is rotated and rises. The inner wall of the outer sleeve 3, which gradually increases in size from bottom to top, will compress the graphite column 4 to move inward.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A wear-resistant, self-lubricating copper bushing, comprising a copper bushing body; characterized in that, The copper sleeve body includes an inner sleeve and an outer sleeve. The inner sleeve is a cylindrical body with openings at both the top and bottom. The upper and lower ends of the inner sleeve have mounting contact portions, and the middle section of the inner sleeve is a graphite mounting portion. Several graphite mounting grooves are evenly distributed on the inner wall of the graphite mounting portion of the inner sleeve, penetrating the graphite mounting portion. Graphite columns are installed inside the graphite mounting portion. The inner ends of the graphite columns are flush with the inner wall of the inner sleeve, while the outer ends of the graphite columns protrude through the graphite mounting grooves. The outer ends of the graphite columns abut against the inner wall of the outer sleeve. The outer sleeve is also a cylindrical body with openings at both the top and bottom. The inner wall of the outer sleeve is inclined, meaning the inner diameter of the outer sleeve gradually decreases from bottom to top.

2. The wear-resistant self-lubricating copper sleeve according to claim 1, characterized in that, The inner diameter of the mounting contact is less than or equal to the inner diameter of the graphite mounting part, and the outer diameter of the mounting contact is greater than the outer diameter of the graphite mounting part.

3. The wear-resistant self-lubricating copper sleeve according to claim 2, characterized in that, The outer diameter of the outer sleeve is less than or equal to the outer diameter of the mounting contact portion.

4. The wear-resistant self-lubricating copper bushing according to claim 1, characterized in that, The inner wall of the outer sleeve has an internal thread at the top, and the outer wall of the graphite mounting part of the inner sleeve has an external thread at the top, with the internal and external threads meshing with each other.

5. The wear-resistant self-lubricating copper sleeve according to claim 1, characterized in that, The outer sleeve includes two symmetrically arranged arc-shaped buckle plates. One arc-shaped buckle plate has a countersunk hole on its side wall, and the other arc-shaped buckle plate has a threaded hole corresponding to the countersunk hole. The countersunk hole and the threaded hole are internally threaded with fixing screws.

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