Wear-resistant shaft sleeve

Abstract

The utility model discloses a wear-resistant shaft sleeve, which relates to the field of shaft sleeve equipment and comprises a first shaft sleeve, protruding rings are fixed at two ends of the outer edge of the first shaft sleeve in a protruding manner, a mounting cavity is arranged in the first shaft sleeve, a second shaft sleeve is inserted in the mounting cavity, and sealing cavities are arranged at the outer edges of the protruding rings. A protruding ring is fixedly arranged on the outer edge of one end of the second shaft sleeve in a sleeving mode, clamping rings are symmetrically arranged on the side edge, facing the sealing cavity, of the protruding ring in a protruding mode, clamping grooves are symmetrically formed in the sealing cavity, the vertical section of each clamping ring is in a T shape, each clamping groove comprises an insertion opening allowing the corresponding clamping ring to be inserted and a clamping groove connected with the insertion opening, and the clamping grooves allow the clamping rings to be clamped in a sliding mode. Through the detachable design of the first shaft sleeve and the second shaft sleeve and the design of matched clamping between the clamping grooves and the clamping rings, the first shaft sleeve and the second shaft sleeve can be rapidly replaced after being used for a period of time, and the situation that the shaft sleeves are convenient to disassemble and replace subsequently is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the field of bushing equipment, and specifically relates to a wear-resistant bushing. Background Technique

[0002] A self-lubricating bushing is a mechanical component that can reduce the friction coefficient, improve the bearing life, and reduce the maintenance cost. The principle of the self-lubricating bushing is based on the concept of solid lubrication. It is filled with a lubricant inside, usually grease or lubricating oil. When the bearing starts to work, the lubricant will enter the friction surface through the internal micropores or grooves to form a lubricating film. This lubricating film can effectively reduce the friction coefficient and reduce the friction loss of the bearing. At the same time, the lubricant can also absorb and disperse the heat generated by friction and reduce the temperature rise of the bearing.

[0003] Most of the existing wear-resistant bushings are integrally formed in a cylindrical shape, which is not convenient for replacing some components. After being used for a period of time, due to the existence of friction, the friction gap of some parts of the bushing is likely to increase, affecting the use, etc., and the corresponding work requirements cannot be well completed. Therefore, a wear-resistant bushing is needed to assist in solving this problem. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a wear-resistant bushing to solve the technical problems that most of the existing wear-resistant bushings are integrally formed in a cylindrical shape, which is not convenient for replacing some components. After being used for a period of time, due to the existence of friction, the friction gap of some parts of the bushing is likely to increase, affecting the use, etc., and the corresponding work requirements cannot be well completed.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a wear-resistant bushing, including a first bushing, both ends of the outer edge of the first bushing are fixedly protruded with protruding rings, an installation cavity is opened inside the first bushing, a second bushing is inserted and installed in the installation cavity, sealing cavities are opened at the outer edges of the protruding rings, a protruding ring is sleeved and fixed at one end of the outer edge of the second bushing, clamping rings are symmetrically protruded on one side of the protruding ring facing the sealing cavity, clamping grooves are symmetrically opened on the sealing cavity, and the clamping grooves and the clamping rings are inserted and matched with each other;

[0006] The vertical cross-section of the clamping ring is in a T shape, the clamping groove includes an insertion port for the clamping ring to be inserted and a clamping groove connected to the insertion port, and the clamping groove is for the clamping ring to slide and be clamped.

[0007] The utility model is further arranged such that a positioning bolt is installed through the protruding ring, the positioning bolt is installed through the center of the clamping ring, a positioning hole is drilled at one end of the clamping groove corresponding to the clamping groove, and the positioning hole is in threaded cooperation with the positioning bolt.

[0008] The present utility model is further configured such that a through cavity is transversely formed in the inner edge of the second bushing, and a graphite block is embedded and installed in the through cavity.

[0009] The present utility model is further configured such that a plurality of graphite blocks are provided, and the plurality of graphite blocks are equidistantly arranged in the through cavity.

[0010] The present utility model is further configured such that a flow guiding groove is formed on the outer side edge of the second bushing, a plurality of communication holes are equidistantly formed in the flow guiding groove, a flow guiding hole is formed in the through cavity of the second bushing, and the flow guiding hole is communicated with the communication holes.

[0011] The present utility model is further configured such that a sleeve is sleeved and fixed at the middle section of the first bushing, an extrusion cavity is symmetrically formed inside the sleeve, the extrusion cavity is communicated with the flow guiding groove, and an extrusion assembly for assisting in extruding oil liquid is installed in the extrusion cavity.

[0012] The present utility model is further configured such that the extrusion assembly includes a sleeved ring rotatably embedded and installed at the middle section of the sleeve, a transmission rod is symmetrically and transversely penetrated and installed in the extrusion cavity, an extrusion block is sleeved and installed on the transmission rod, two threads with opposite spiral directions are symmetrically formed on the transmission rod, the transmission rod is in threaded cooperation with the extrusion block, a transmission gear ring is sleeved and fixed at the middle section of the transmission rod, and meshing transmission is carried out between the outer edge of the transmission gear ring and the inner edge of the sleeved ring.

[0013] In summary, the present utility model mainly has the following beneficial effects: Through the detachable design of the first bushing and the second bushing and the cooperative clamping design between the clamping groove and the clamping ring, after using for a period of time, when the second bushing needs to be replaced, the original second bushing can be integrally removed, the second bushing is inserted and installed in the installation cavity of the first bushing, and the positioning bolt on the protruding ring is cooperatively inserted with the positioning hole on the sealing cavity. Reverse the protruding ring, the protruding ring drives the clamping ring to rotate integrally, and the clamping ring is clamped and installed in the clamping groove of the clamping groove, and the preliminary positioning and fastening treatment of the first bushing and the second bushing can be completed, and the preliminary replacement and positioning installation of the second bushing can be completed;

[0014] Through the cooperation between the provided positioning bolt and the positioning hole, etc., after the preliminary installation of the second bushing, rotate the positioning bolt, and the positioning hole is in threaded cooperation with the positioning bolt, so that the positioning bolt and the positioning hole are cooperatively positioned, thereby completing the secondary cooperative positioning and fastening treatment of the first bushing and the second bushing;

[0015] Through the cooperation among the sleeve at the outer edge of the first bushing, the extrusion assembly, the diversion holes, the diversion grooves, and the communication holes, etc., the sleeved ring is reversed, and the inner edge of the sleeved ring meshes with the outer edge of the transmission gear ring to drive the overall rotation of the transmission gear ring, and the transmission gear ring drives the overall rotation of the transmission rod. The transmission rod is in threaded cooperation with the extrusion block, so that the extrusion block moves towards both sides as a whole, and the paste-like lubricating oil is assisted to be extruded through the extrusion block, so that the lubricating oil is integrally extruded through the diversion groove, the communication hole, and the diversion hole. The lubricating oil extruded through the graphite block and the diversion hole in the cavity penetrated by the second bushing realizes the auxiliary lubrication treatment of the bushing, which can improve the wear resistance of the second bushing as a whole and the overall service life of the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a longitudinal sectional view of the present invention;

[0018] Figure 3 for the present invention Figure 1 is an enlarged schematic structural diagram of part A in;

[0019] Figure 4 is a schematic structural diagram of the second bushing of the present invention

[0020] In the figure: 1. First bushing; 2. Protruding ring; 3. Sealing cavity; 4. Second bushing; 41. Protruding ring; 5. Graphite block; 6. Diversion hole; 7. Diversion groove; 8. Communication hole; 9. Card slot; 10. Positioning hole; 11. Clamping ring; 12. Positioning bolt; 13. Sleeve; 14. Extrusion assembly; 15. Sleeved ring; 16. Transmission gear ring; 17. Transmission rod; 18. Extrusion block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0022] A wear-resistant bushing, as Figure 1 and Figure 2As shown in the figure, it includes a first bushing 1. At both ends of the outer edge of the first bushing 1, protruding rings 2 are fixedly protruded. An installation cavity is opened inside the first bushing 1. A second bushing 4 is inserted and installed in the installation cavity. A through cavity is horizontally penetrated through the inner edge of the second bushing 4. A graphite block 5 is embedded in the through cavity. There are several graphite blocks 5, and several graphite blocks 5 are equidistantly arranged in the through cavity. By providing the graphite blocks 5, a lubricating film can be formed during the friction process of the bushing, effectively reducing the direct friction between metals. This lubricating effect not only reduces the friction coefficient but also reduces wear, thereby extending the service life of the bushing. The layered structure of graphite and the chemical bonds between carbon atoms enable it to slide smoothly during the friction process.

[0023] On the outer side edge of the second bushing 4 described above, a diversion groove 7 is opened. Several communication holes 8 are equidistantly opened on the diversion groove 7. A diversion hole 6 is opened in the through cavity of the second bushing 4. The diversion hole 6 is communicated with the communication hole 8. A sleeve 13 is sleeved and fixed at the middle section of the first bushing 1. Extrusion cavities are symmetrically opened inside the sleeve 13. At the outer edge of the sleeve 13, a through tube is symmetrically protruded. The through tube is communicated with the inside of the extrusion cavity. A sealing bolt is threadedly installed at the through tube. The extrusion cavity is communicated with the diversion groove 7. An extrusion assembly 14 for assisting in squeezing the oil liquid is installed in the extrusion cavity. The extrusion assembly 14 includes a sleeve ring 15 rotatably embedded at the middle section of the sleeve 13. Transmission rods 17 are symmetrically horizontally penetrated and installed in the extrusion cavity. An extrusion block 18 is sleeved and installed on the transmission rod 17. Two threads with opposite spiral directions are symmetrically opened on the transmission rod 17. The transmission rod 17 is in threaded cooperation with the extrusion block 18. A transmission gear ring 16 is sleeved and fixed at the middle section of the transmission rod 17. The outer edge of the transmission gear ring 16 is in meshing transmission with the inner edge of the sleeve ring 15.

[0024] Through the cooperation between the sleeve 13 at the outer edge of the first bushing 1, the extrusion assembly 14, the diversion hole 6, the diversion groove 7, and the communication hole 8, etc., when the sleeve ring 15 is reversed, the inner edge of the sleeve ring 15 is in meshing transmission with the outer edge of the transmission gear ring 16, so that the entire transmission gear ring 16 rotates, and the transmission gear ring 16 drives the entire transmission rod 17 to rotate. The transmission rod 17 is in threaded cooperation with the extrusion block 18, so that the entire extrusion block 18 moves to both sides, thereby assisting in squeezing the paste-like lubricating oil through the extrusion block 18, so that the lubricating oil is integrally extruded through the diversion groove 7 and the communication hole 8 and through the diversion hole 6. The lubricating oil extruded through the graphite block 5 and the diversion hole 6 in the through cavity of the second bushing 4 is used to realize the auxiliary lubrication treatment of the bushing, which can improve the wear resistance of the entire second bushing 4 and improve the overall service life of the bushing.

[0025] Refer to Figure 1 、 Figure 3 and Figure 4As shown, sealing cavities 3 are provided at the outer edges of the protruding rings 2. A protruding ring 41 is sleeved and fixed at the outer edge of one end of the second shaft sleeve 4. On one side of the protruding ring 41 facing the sealing cavity 3, clamping rings 11 are symmetrically protruded. Clamping grooves 9 are symmetrically provided on the sealing cavity 3. The clamping grooves 9 and the clamping rings 11 are cooperatively inserted. The vertical cross-section of the clamping ring 11 is T-shaped. The clamping groove 9 includes an insertion opening for the clamping ring 11 to be inserted and a clamping slot connected to the insertion opening. The clamping slot is for the clamping ring 11 to slide and be clamped.

[0026] Through the detachable design of the first shaft sleeve 1 and the second shaft sleeve 4 and the cooperative clamping design between the clamping grooves 9 and the clamping rings 11, after using for a period of time, when the second shaft sleeve 4 needs to be replaced, the original second shaft sleeve 4 can be removed as a whole, the second shaft sleeve 4 is inserted and installed in the installation cavity of the first shaft sleeve 1, and the positioning bolt 12 on the protruding ring 41 is cooperatively inserted with the positioning hole 10 on the sealing cavity 3. Reverse the protruding ring 41. The protruding ring 41 drives the clamping ring 11 to rotate as a whole, and the clamping ring 11 is clamped and installed in the clamping slot of the clamping groove 9, then the preliminary positioning and fastening treatment of the first shaft sleeve 1 and the second shaft sleeve 4 can be completed, and the preliminary replacement and positioning installation of the second shaft sleeve 4 can be completed.

[0027] The positioning bolt 12 is inserted and installed on the protruding ring 41. The positioning bolt 12 is inserted and installed at the center of the clamping ring 11. A positioning hole 10 is drilled at one end of the clamping groove 9 corresponding to the clamping slot. The positioning hole 10 and the positioning bolt 12 are in threaded cooperation.

[0028] Through the cooperation between the provided positioning bolt 12 and the positioning hole 10, etc., after the preliminary installation of the second shaft sleeve 4, rotate the positioning bolt 12. The positioning hole 10 and the positioning bolt 12 are in threaded cooperation, so that the positioning bolt 12 and the positioning hole 10 are cooperatively positioned, and then the secondary cooperation positioning and fastening treatment of the first shaft sleeve 1 and the second shaft sleeve 4 can be completed.

[0029] The working principle of the present utility model:

[0030] When the second shaft sleeve 4 needs to be installed, insert and install the second shaft sleeve 4 in the installation cavity of the first shaft sleeve 1, and make the positioning bolt 12 on the protruding ring 41 be cooperatively inserted with the positioning hole 10 on the sealing cavity 3. Reverse the protruding ring 41. The protruding ring 41 drives the clamping ring 11 to rotate as a whole, and the clamping ring 11 is clamped and installed in the clamping slot of the clamping groove 9. Rotate the positioning bolt 12. The positioning hole 10 and the positioning bolt 12 are in threaded cooperation, so that the positioning bolt 12 and the positioning hole 10 are cooperatively positioned, and then the cooperation positioning and fastening treatment of the first shaft sleeve 1 and the second shaft sleeve 4 can be completed.

[0031] When working, the paste-like lubricating oil is extruded into the extrusion cavity in the sleeve 13. The sleeved ring 15 is reversed, and meshing transmission occurs between the inner edge of the sleeved ring 15 and the outer edge of the transmission gear ring 16, so that the entire transmission gear ring 16 rotates, and the transmission gear ring 16 drives the entire transmission rod 17 to rotate. The transmission rod 17 is in threaded cooperation with the extrusion block 18, so that the entire extrusion block 18 moves to both sides, thereby assisting in extruding the paste-like lubricating oil through the extrusion block 18, so that the lubricating oil is integrally extruded through the diversion groove 7, the communication hole 8 and the diversion hole 6. The lubricating oil extruded through the graphite block 5 and the diversion hole 6 in the cavity penetrated by the second bushing 4 realizes the auxiliary lubrication treatment of the bushing.

[0032] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A wear-resistant bushing, comprising a first bushing (1), and protruding rings (2) are fixedly protruded at both ends of the outer edge of the first bushing (1), and it is characterized in that: An installation cavity is provided inside the first bushing (1), and a second bushing (4) is inserted and installed in the installation cavity. Sealing cavities (3) are provided at the outer edges of the protruding rings (2). A protruding ring (41) is sleeved and fixed at the outer edge of one end of the second bushing (4). Clamping rings (11) are symmetrically protruded on one side of the protruding ring (41) facing the sealing cavity (3). Clamping grooves (9) are symmetrically provided on the sealing cavity (3), and the clamping grooves (9) and the clamping rings (11) are inserted and matched with each other. The vertical section of the clamping ring (11) is in a T shape. The clamping groove (9) includes an insertion opening for the clamping ring (11) to be inserted and a clamping slot connected to the insertion opening. The clamping slot is for the clamping ring (11) to slide and be clamped.

2. The wear-resistant bushing according to claim 1, wherein: A positioning bolt (12) is inserted and installed on the protruding ring (41). The positioning bolt (12) is inserted and installed at the center of the clamping ring (11). A positioning hole (10) is drilled at one end of the clamping groove (9) corresponding to the clamping slot. The positioning hole (10) and the positioning bolt (12) are in threaded cooperation.

3. A wear-resistant bushing according to claim 1, characterized in that: A through cavity is horizontally penetrated through the inner edge of the second bushing (4), and a graphite block (5) is embedded and installed in the through cavity.

4. The wear-resistant bushing according to claim 3, characterized in that: A plurality of the graphite blocks (5) are provided, and the plurality of graphite blocks (5) are equidistantly arranged in the through cavity.

5. A wear-resistant bushing according to claim 1, characterized in that: Flow guiding grooves (7) are provided on the outer side of the second bushing (4). A plurality of communication holes (8) are equidistantly provided on the flow guiding grooves (7). A flow guiding hole (6) is provided in the through cavity of the second bushing (4), and the flow guiding hole (6) is communicated with the communication holes (8).

6. The wear-resistant bushing according to claim 5, characterized in that: A sleeve (13) is sleeved and fixed at the middle section of the first bushing (1). Extrusion cavities are symmetrically provided inside the sleeve (13). The extrusion cavities are communicated with the flow guiding grooves (7), and an extrusion assembly (14) for assisting in squeezing oil is installed in the extrusion cavities.

7. A wear-resistant bushing according to claim 6, characterized in that: The extrusion assembly (14) includes a sleeved ring (15) rotatably embedded and installed at the middle section of the sleeve (13). Transmission rods (17) are symmetrically and horizontally penetrated and installed in the extrusion cavities. An extrusion block (18) is sleeved and installed on the transmission rods (17). Two threads with opposite spiral directions are symmetrically provided on the transmission rods (17). The transmission rods (17) and the extrusion block (18) are in threaded cooperation. A transmission gear ring (16) is sleeved and fixed at the middle section of the transmission rods (17). The outer edge of the transmission gear ring (16) and the inner edge of the sleeved ring (15) are in meshing transmission.

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