Sliding bearing with wear-resistant coating

Abstract

The sliding bearing comprises a mounting plate, a bearing seat, a bearing cover, an outer lining, an oil sealing ring and an inner lining, the bearing seat is fixedly connected to the middle of the upper end of the mounting plate, the bearing cover is fixedly connected to the upper end of the bearing seat through a bolt, a bearing hole is formed between the bearing cover and the bearing seat, and the inner lining is fixedly connected to the bearing cover through a bolt. A bearing hole is formed in the outer lining, an outer lining is installed in the bearing hole, oil sealing rings are installed in sleeve openings in the two ends of the outer lining respectively, an inner lining is connected to the portion, between the oil sealing rings, of the outer lining in a sleeved mode, and abrasion-resistant coatings are arranged on the inner side face and the outer side face of the inner lining respectively. The utility model aims to provide the sliding bearing which is stable in operation, improved in wear resistance and sealing performance and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding bearings, and particularly relates to a sliding bearing with an anti-wear coating. Background Art

[0002] Sliding bearings are widely used in mechanical equipment. As important components for supporting and guiding moving parts, their performance and service life directly affect the operating efficiency and stability of the equipment. Traditional sliding bearings are usually made of metal materials and have good load-bearing capacity. However, under high load and high-speed conditions, problems such as wear, heat generation, and poor lubrication are likely to occur, resulting in shortened bearing life and increased equipment failure rate.

[0003] To solve the above problems, people have made various improvements and optimizations to sliding bearings. For example, using new alloy materials to improve anti-wear performance, coating lubricating materials on the sliding surface to reduce the friction coefficient, and improving the bearing structure design to enhance the lubrication effect and sealing performance. However, the sliding bearings in the prior art still have some deficiencies. Especially in extreme working environments such as high temperature and high pressure, the wear problem of the bearings still cannot be effectively solved.

[0004] The utility model provides a sliding bearing with an anti-wear coating, aiming to significantly improve the wear resistance, sealing performance, and operating stability of the bearing by optimizing the structure design and material selection. Specifically, the utility model sets a buffer layer between the inner lining sleeve and the outer lining sleeve of the bearing to effectively relieve the impact force generated by the sliding shaft, and coats an anti-wear coating on the sliding surface to greatly reduce the sliding friction. In addition, through the innovative design of the oil sealing ring and the oil guiding structure, the lubrication and sealing effects inside the bearing are ensured, thereby extending the service life of the bearing and improving the operating efficiency of the equipment.

[0005] Through the above technical means, the sliding bearing provided by the utility model not only solves the problem of easy wear of traditional bearings, but also has higher stability and sealing performance in structure, is applicable to various complex and harsh working environments, and has broad application prospects. Summary of the Utility Model

[0006] Aiming at the above deficiencies existing in the prior art, the purpose of the utility model is to provide a sliding bearing with stable operation, improved wear resistance and sealing performance of the sliding bearing, and convenient installation and maintenance.

[0007] The technical solution adopted by the present utility model to achieve the above object is: a sliding bearing with an anti-wear coating, including a mounting plate, a bearing seat, a bearing cover, an outer bushing, an oil seal ring, and an inner bushing. The middle of the upper end of the mounting plate is fixedly connected with the bearing seat. Installation holes are respectively opened at both ends of the mounting plate to facilitate the installation and fixation of the mounting plate. The upper end of the bearing seat is fixedly connected with the bearing cover by bolts. A bearing hole is provided between the bearing cover and the bearing seat to provide a receiving space for the outer bushing and the inner bushing. The outer bushing is installed in the bearing hole. The outer bushing serves as an external support layer for the inner bushing to provide a stable installation structure. Oil seal rings are respectively installed in the socket openings at both ends of the outer bushing. The oil seal rings are used to prevent lubricating oil from leaking and ensure the lubrication and sealing effects inside the bearing. An inner bushing is sleeved and connected inside the outer bushing between the oil seal rings. The inside of the inner bushing is directly in contact with the sliding shaft to provide a low-friction sliding surface. Anti-wear coatings are respectively provided on the inner and outer side surfaces of the inner bushing. The anti-wear coatings can reduce sliding friction and improve the wear resistance and service life of the bearing.

[0008] In one embodiment, outer bushing rings are respectively fixedly connected to both ends of the outer bushing. The outer bushing rings are respectively abutted and connected to both ends of the bearing hole. A plurality of convex strips are provided on the outer peripheral side wall of the outer bushing. A plurality of guide grooves are opened on the inner side wall of the bearing hole. The convex strips are respectively fitted and connected in the guide grooves.

[0009] In one embodiment, the outer bushing includes an upper bushing and a lower bushing. The upper bushing is installed in the bearing hole at the lower end of the bearing cover. The lower bushing is installed in the bearing hole at the upper end of the bearing seat. A sealing strip is connected at the butt joint of the upper bushing and the lower bushing.

[0010] In one embodiment, the oil seal ring includes an inner sleeve ring, an outer sleeve ring, an outer sealing ring, an inner sealing ring, a sealing sleeve ring, a sealing cone ring, a mounting sleeve ring, and a nested ring. The outer peripheral side surface of the inner sleeve ring is fixedly connected with the outer sleeve ring. An inner ring groove is opened on the inner side of the socket opening of the outer bushing. The outer sleeve ring is fitted and connected in the inner ring groove. The outer peripheral of the outer sleeve ring is fitted and connected with the outer sealing ring. The outer sealing ring abuts against the inner ring groove. One side of the inner sleeve ring is connected with the mounting sleeve ring. The mounting sleeve ring is fixedly connected to the inner sleeve ring by screws. An embedding groove is opened on one outer end side of the mounting sleeve ring. The nested ring is fixedly connected in the embedding groove. One outer end side of the nested ring is respectively abutted and connected to both ends of the inner bushing. A sealing sleeve ring is sleeved and connected inside the inner sleeve ring on one side of the mounting sleeve ring. A plurality of sealing cone rings are fixedly connected to the inner side of the sealing sleeve ring. An inner sealing ring is fitted and connected inside the inner sleeve ring on one side of the sealing sleeve ring.

[0011] In one embodiment, the inner sleeve includes a lower sleeve and an upper sleeve, the lower sleeve is installed in the lower sleeve, a first positioning block is fixedly connected to the middle part of the lower end of the lower sleeve, a first positioning groove is opened in the middle part of the upper end of the lower sleeve, the first positioning block is plugged into the first positioning groove, the upper sleeve is installed in the upper sleeve, a second positioning block is fixedly connected to the middle part of the upper end of the upper sleeve, a second positioning groove is opened in the middle part of the lower end of the upper sleeve, the second positioning block is plugged into the second positioning groove.

[0012] In one of the embodiments, an oil guide hole leading to the inner wall of the inner bushing is penetrated on the second positioning block, a through hole is formed on the upper bushing opposite to the oil guide hole, a threaded hole is formed in the middle of the upper end of the bearing cover, a screw casing is threadedly connected to the threaded hole, a threaded interface is formed on the upper end of the screw casing, an oil guide pipe is fixedly connected to the lower end of the screw casing, and the oil guide pipe extends into the oil guide hole after passing through the through hole.

[0013] Beneficial effects of the utility model:

[0014] 1. Significantly improve wear resistance: By applying anti-wear coating on the inner sleeve, the sliding friction is effectively reduced, the wear resistance of the bearing is significantly improved, the service life of the bearing is extended, and the maintenance and replacement costs are reduced;

[0015] 2. Enhanced operation stability: Buffer layers (such as silicone pads or rubber pads) are provided between the inner wall of the bearing hole and the outer wall of the outer bushing, and between the inner wall of the outer bushing and the outer wall of the inner bushing, which can effectively alleviate the impact force and vibration generated by the sliding shaft, improve the overall operation stability of the bearing, and reduce the wear and damage caused by impact and vibration;

[0016] 3. Improve lubrication effect: Oil sealing rings are installed in the sleeves at both ends of the inner sleeve to effectively prevent lubricating oil leakage, ensure the lubrication and sealing effect inside the bearing, thereby reducing friction and wear and improving the operating efficiency of the bearing;

[0017] 4. Enhanced sealing performance: Through multiple sealing designs such as oil sealing rings, sealing strips and oil guide structures, the sealing performance of the bearing is further improved to prevent lubricating oil leakage and ensure the stable operation of the bearing in harsh environments such as high temperature and high pressure;

[0018] 5. Easy to install and maintain: The utility model has a reasonable design and adopts a modular structure. The upper bushing, the lower bushing, the inner sleeve and the outer sleeve are easy to install and disassemble, which is convenient for daily maintenance and improves work efficiency;

[0019] 6. Wide application scope: Since the utility model adopts a variety of anti-wear and sealing technologies, it can maintain good performance in various complex and harsh working environments, and is suitable for mechanical equipment, vehicles, aerospace and other fields, and has a wide range of application prospects;

[0020] In summary, through structural optimization and material improvement, the utility model has achieved remarkable effects in enhancing the wear resistance, operating stability and sealing performance of the sliding bearing, solved the problems of easy wear, heat generation and poor lubrication of the traditional sliding bearing under high load and high speed conditions, and has high practical value and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the installation structure of the sliding bearing of the utility model;

[0022] Figure 2 It is a schematic diagram of the disassembled structure of the sliding bearing of the utility model;

[0023] Figure 3 It is a schematic diagram of the connection structure between the bearing housing and the bearing cover of the utility model;

[0024] Figure 4 It is a schematic top view structure diagram of the outer bushing of the utility model;

[0025] Figure 5 It is a schematic bottom view structure diagram of the outer bushing of the utility model;

[0026] Figure 6 It is a schematic cross-sectional structure diagram of the inner bushing of the utility model;

[0027] Figure 7 It is a schematic cross-sectional structure diagram of the oil sealing ring of the utility model.

[0028] In the figure: 1 mounting plate, 2 bearing housing, 3 bearing cover, 4 outer bushing, 5 oil sealing ring, 6 inner bushing, 7 sliding shaft, 101 outer bushing ring, 102 rib, 103 guide groove, 201 upper bushing, 202 lower bushing, 203 sealing strip, 301 inner sleeve ring, 302 outer sleeve ring, 303 outer sealing ring, 304 inner sealing ring, 305 sealing sleeve ring, 306 sealing cone ring, 307 mounting sleeve ring, 308 nested ring, 309 inner ring groove, 401 lower shaft sleeve, 402 upper shaft sleeve, 403 first positioning block, 404 first positioning groove, 405 second positioning block, 406 second positioning groove, 501 oil guiding hole, 502 through hole, 503 threaded hole, 504 screw sleeve, 505 oil guiding pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0030] Please refer to Figure 1-7, A sliding bearing with an anti-wear coating, comprising a mounting plate 1, a bearing housing 2, a bearing cover 3, an outer bushing 4, an oil seal ring 5, and an inner bushing 6. The middle of the upper end of the mounting plate 1 is fixedly connected to the bearing housing 2. Installation holes are respectively provided at both ends of the mounting plate 1 to facilitate the installation and fixation of the mounting plate 1. The upper end of the bearing housing 2 is fixedly connected to the bearing cover 3 by bolts. A bearing hole is provided between the bearing cover 3 and the bearing housing 2 to provide a receiving space for the outer bushing 4 and the inner bushing 6. The outer bushing 4 is installed in the bearing hole. The outer bushing 4 serves as an external support layer for the inner bushing 6, providing a stable installation structure. Oil seal rings 5 are respectively installed in the sleeve openings at both ends of the outer bushing 4. The oil seal rings 5 are used to prevent lubricating oil from leaking, ensuring the lubrication and sealing effects inside the bearing. The inner bushing 6 is sleeved and connected inside the outer bushing 4 between the oil seal rings 5. The inside of the inner bushing 6 is directly in contact with the sliding shaft 7, providing a low-friction sliding surface. Anti-wear coatings are respectively provided on the inner and outer side surfaces of the inner bushing 6. The anti-wear coatings can reduce sliding friction and improve the wear resistance and service life of the bearing;

[0031] In the present utility model, buffer layers are respectively provided between the inner wall of the bearing hole and the outer wall of the outer bushing 4, and between the inner wall of the outer bushing 4 and the outer wall of the inner bushing 6. The buffer layers are silicone pads or rubber pads, which can buffer the actions generated by the sliding shaft 7 and improve the overall running stability of the bearing.

[0032] In one embodiment, outer bushing rings 101 are respectively fixedly connected to both ends of the outer bushing 4. The outer bushing rings 101 are respectively abutted and connected to both ends of the bearing hole. The installation position of the outer bushing 4 can be limited by the outer bushing rings 101. A plurality of ridges 102 are provided on the outer peripheral side wall of the outer bushing 4, and a plurality of guide grooves 103 are provided on the inner side wall of the bearing hole. The ridges 102 are respectively fitted and connected in the guide grooves 103 to further limit the installation position of the outer bushing 4.

[0033] In one embodiment, the outer bushing 4 includes an upper bushing 201 and a lower bushing 202. The upper bushing 201 is installed in the bearing hole at the lower end of the bearing cover 3, and the lower bushing 202 is installed in the bearing hole at the upper end of the bearing housing 2. A sealing strip 203 is connected at the butt joint of the upper bushing 201 and the lower bushing 202. The butt joint between the upper bushing 201 and the lower bushing 202 can be sealed by the sealing strip 203 to ensure the overall sealing performance of the outer bushing 4.

[0034] In one embodiment, the oil sealing ring 5 includes an inner sleeve ring 301, an outer sleeve ring 302, an outer sealing ring 303, an inner sealing ring 304, a sealing sleeve ring 305, a sealing cone ring 306, a mounting sleeve ring 307, and a nested ring 308. During use, the oil sealing ring 5 is rotatably connected to the sliding shaft 7. The outer peripheral side of the inner sleeve ring 301 is fixedly connected to the outer sleeve ring 302. An inner ring groove 309 is formed on the inner side of the socket of the outer bushing 4. The outer sleeve ring 302 is fitted and connected in the inner ring groove 309 to fixedly connect the oil sealing ring 5 inside the outer bushing 4. The outer peripheral side of the outer sleeve ring 302 is fitted and connected with the outer sealing ring 303, and the outer sealing ring 303 abuts against the inner ring groove 309 to improve the sealing performance between the oil sealing ring 5 and the outer bushing 4. One side of the inner sleeve ring 301 is connected with the mounting sleeve ring 307. The mounting sleeve ring 307 is fixedly connected to the inner sleeve ring 301 by screws. The sealing sleeve ring 305 inside the inner sleeve ring 301 can be limited by the mounting sleeve ring 307. An embedding groove is formed on one outer end side of the mounting sleeve ring 307, and the nested ring 308 is fixedly connected in the embedding groove. One outer end side of the nested ring 308 abuts against both ends of the inner lining sleeve 6 respectively to limit the position of the inner lining sleeve 6. The sealing sleeve ring 305 is sleeved inside the inner sleeve ring 301 on one side of the mounting sleeve ring 307. A plurality of sealing cone rings 306 are fixedly connected to the inner side of the sealing sleeve ring 305. The inner side of the sealing cone ring 306 abuts against the sliding shaft 7 to improve the sealing performance between both ends of the outer bushing 4 and the sliding shaft 7. The inner sealing ring 304 is fitted and connected inside the inner sleeve ring 301 on one side of the sealing sleeve ring 305 to further improve the sealing performance with the sliding shaft 7 and prevent oil leakage.

[0035] In one embodiment, the inner lining sleeve 6 includes a lower shaft sleeve 401 and an upper shaft sleeve 402. The lower shaft sleeve 401 is installed in the lower bushing 202. A first positioning block 403 is fixedly connected to the middle of the lower end of the lower shaft sleeve 401. A first positioning groove 404 is formed in the middle of the upper end of the lower bushing 202. The first positioning block 403 is inserted and connected in the first positioning groove 404. The upper shaft sleeve 402 is installed in the upper bushing 201. A second positioning block 405 is fixedly connected to the middle of the upper end of the upper shaft sleeve 402. A second positioning groove 406 is formed in the middle of the lower end of the upper bushing 201. The second positioning block 405 is inserted and connected in the second positioning groove 406. The installation and positioning of the inner lining sleeve 6 are realized through the first positioning block 403 and the second positioning block 405.

[0036] In one of the embodiments, an oil guiding hole 501 leading to the inner wall of the inner lining sleeve 6 penetrates through the second positioning block 405. A through hole 502 is formed in the upper lining sleeve 201 opposite to the oil guiding hole 501. A threaded hole 503 is formed in the middle of the upper end of the bearing cover 3. A screw sleeve 504 is threadedly connected in the threaded hole 503. A threaded interface is formed at the upper end of the screw sleeve 504. A lower end of the screw sleeve 504 is fixedly connected to an oil guiding pipe 505. The oil guiding pipe 505 passes through the through hole 502 and then extends into the oil guiding hole 501. During use, it can be connected to an oil injection device through the threaded interface. The lubricating oil is injected into the screw sleeve 504 through the oil injection device, and then is injected between the inner lining sleeve 6 and the sliding shaft 7 through the oil guiding pipe 505 at the bottom of the screw sleeve 504. After the oil injection is completed, the threaded interface can be sealed by a plunger to complete the oil injection operation.

[0037] The working principle of the present utility model is as follows: During use, first, the bearing cover 3 at the upper end of the bearing seat 2 is removed. At the same time, the upper lining sleeve 201, the upper shaft sleeve 402, and the oil sealing ring 5 at the upper end of the bearing seat 2 are removed. Then, the two oil sealing rings 5 are respectively sleeved on the sliding shaft 7. After that, the oil sealing rings 5 are respectively placed in the inner ring grooves 309 of the lower lining sleeve 202. Then, the upper shaft sleeve 402 is buckled and connected to the lower shaft sleeve 401, so that the upper shaft sleeve 402 and the lower shaft sleeve 401 are combined to form the inner lining sleeve 6. At this time, the sliding shaft 7 is slidably connected in the inner lining sleeve 6. Subsequently, the upper lining sleeve 201 is buckled and connected to the upper end of the lower lining sleeve 202, so that the upper lining sleeve 201 and the lower lining sleeve 202 are combined to form the outer lining sleeve 4. Finally, the bearing cover 3 is closed and connected to the bearing seat 2 and fixed to complete the installation operation.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0039] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sliding bearing with an anti-wear coating, comprising a mounting plate (1), a bearing seat (2), a bearing cover (3), an outer bushing (4), an oil sealing ring (5), and an inner bushing (6), characterized in that: A bearing seat (2) is fixedly connected to the middle of the upper end of the mounting plate (1); a bearing cover (3) is fixedly connected to the upper end of the bearing seat (2) by bolts; a bearing hole is provided between the bearing cover (3) and the bearing seat (2); an outer bushing (4) is installed in the bearing hole; oil sealing rings (5) are respectively installed in the sleeves at both ends of the outer bushing (4); an inner bushing (6) is sleeved and connected to the outer bushing (4) between the oil sealing rings (5); and anti-wear coatings are respectively provided on the inner and outer side surfaces of the inner bushing (6).

2. A sliding bearing with an anti-wear coating according to claim 1, characterized in that: The two ends of the outer bushing (4) are respectively fixedly connected with outer bushing rings (101), and the outer bushing rings (101) are respectively connected to the two ends of the bearing hole. A plurality of convex strips (102) are arranged on the outer peripheral side wall of the outer bushing (4), and a plurality of guide grooves (103) are opened on the inner side wall of the bearing hole. The convex strips (102) are respectively embedded and connected in the guide grooves (103).

3. A sliding bearing with an anti-wear coating according to claim 1, characterized in that: The outer bushing (4) comprises an upper bushing (201) and a lower bushing (202); the upper bushing (201) is installed in the bearing hole at the lower end of the bearing cover (3); the lower bushing (202) is installed in the bearing hole at the upper end of the bearing seat (2); and a sealing strip (203) is connected at the joint between the upper bushing (201) and the lower bushing (202).

4. A sliding bearing with an anti-wear coating according to claim 1, characterized in that: The oil sealing ring (5) comprises an inner sleeve ring (301), an outer sleeve ring (302), an outer sealing ring (303), an inner sealing ring (304), a sealing sleeve ring (305), a sealing cone ring (306), a mounting sleeve ring (307), and a nesting ring (308). The outer sleeve ring (301) is fixedly connected to the outer sleeve ring (302) on its outer peripheral side surface. An inner ring groove (309) is provided on the inner side of the sleeve opening of the outer sleeve (4). The outer sleeve ring (302) is engaged with the inner ring groove (309). The outer sleeve ring (302) is engaged with the outer sealing ring (303) on its outer periphery. The outer sealing ring (303) contacts the inner ring groove (309). The inner sleeve ring (301) One side of the mounting ring (307) is connected to the inner ring (301) by screws, and an embedding groove is provided on the outer end of the mounting ring (307), and a nesting ring (308) is embedded and connected in the embedding groove. The outer end of the nesting ring (308) is respectively connected to the two ends of the inner bushing (6). The inner ring (301) on one side of the mounting ring (307) is connected to a sealing ring (305) in a sleeve connection, and the inner side of the sealing ring (305) is fixedly connected to a plurality of sealing cone rings (306), and the inner ring (301) on one side of the sealing ring (305) is embedded and connected to an inner sealing ring (304).

5. The sliding bearing with anti-wear coating according to claim 3, characterized in that: The inner sleeve (6) comprises a lower sleeve (401) and an upper sleeve (402), wherein the lower sleeve (401) is installed in the lower sleeve (202), a first positioning block (403) is fixedly connected to the middle part of the lower end of the lower sleeve (401), a first positioning groove (404) is provided in the middle part of the upper end of the lower sleeve (202), and the first positioning block (403) is plugged into the first positioning groove (404), and the upper sleeve (402) is installed in the upper sleeve (201), a second positioning block (405) is fixedly connected to the middle part of the upper end of the upper sleeve (402), a second positioning groove (406) is provided in the middle part of the lower end of the upper sleeve (201), and the second positioning block (405) is plugged into the second positioning groove (406).

6. A sliding bearing with an anti-wear coating according to claim 5, characterized in that: The second positioning block (405) is penetrated by an oil guide hole (501) leading to the inner wall of the inner bushing (6); the upper bushing (201) opposite to the oil guide hole (501) is provided with a through hole (502); the middle part of the upper end of the bearing cover (3) is provided with a threaded hole (503); the threaded hole (503) is internally threadedly connected to a screw sleeve (504); the upper end of the screw sleeve (504) is provided with a threaded interface; the lower end of the screw sleeve (504) is fixedly connected to an oil guide pipe (505); the oil guide pipe (505) passes through the through hole (502) and extends into the oil guide hole (501).

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