Metal bearing bush with high wear resistance

Abstract

The utility model discloses a metal bearing bush with high wear resistance, which comprises a first outer metal bearing bush single body, a second inner wear-resistant bushing and a first inner wear-resistant bushing, and one end of the first outer metal bearing bush single body is provided with a second outer metal bearing bush single body. The first oil guide balls and the second oil guide balls are mounted, so that when the device is used and the bearing bush structure and the shaft structure move relatively, the first oil guide balls which are uniformly connected to the first inner wear-resistant bushing welded on the inner wall of the first outer metal bearing bush monomer in a rolling manner are uniformly connected to the first inner wear-resistant bushing welded on the inner wall of the first outer metal bearing bush monomer in a rolling manner; second oil guide balls evenly connected to a second inner abrasion-resistant bush welded to the inner wall of the second outer metal bearing bush single body in a rolling mode can generate rolling friction with the outer wall, making contact with the second oil guide balls, of the shaft, sliding friction in the sliding bearing mechanism is changed into rolling friction, the friction force influence is reduced, and the service life of the sliding bearing mechanism is prolonged. And when the first oil guide ball and the second oil guide ball roll, lubricating oil in structures such as the reserved oil storage cylinder can be brought out to achieve lubrication protection.

Description

Technical Field

[0001] The utility model relates to the technical field of metal bearing bushes, in particular to a metal bearing bush with high wear resistance. Background Art

[0002] The bearing shell is the part where the sliding bearing contacts the shaft. It is very smooth and is generally made of bronze, anti-friction alloy and other materials. In special cases, it can be made of wood, plastic or rubber. However, there are still some defects in its actual operation.

[0003] For example, the environmentally friendly silver-bronze alloy-steel bimetallic bearing disclosed in the application number 201220238172.9 has a silver-bronze alloy wear-resistant layer fixed on the inner edge of the steel back, and a friction-reducing layer fixed on the inner edge of the silver-bronze alloy wear-resistant layer. By fixing the silver-bronze alloy wear-resistant layer on the inner edge of the steel back, the structural strength and mechanical bearing capacity are significantly improved, and the friction-reducing layer on the inner edge of the bearing can effectively improve the anti-bite ability of the bearing. At the same time, the environmentally friendly silver-bronze alloy-steel bimetallic bearing does not contain lead, and its stress corrosion resistance and chemical corrosion resistance are effectively guaranteed, including avoiding environmental pollution caused by the use of lead. It is convenient and simple to install and apply, has a stable state during operation, and has reliable and durable performance. However, it still has the problem of excessive friction during relative movement between the shaft and the bearing, and lacks a protective structure to reduce friction, which will affect the wear-resistant service life of the bearing and make it difficult to promote. Utility Model Content

[0004] The utility model aims to provide a metal bearing bush with high wear resistance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly wear-resistant metal bearing, comprising a first outer metal bearing monomer, a second inner wear-resistant bushing and a first inner wear-resistant bushing, wherein a second outer metal bearing monomer is arranged at one end of the first outer metal bearing monomer, the first inner wear-resistant bushing is welded to the inner side wall of the first outer metal bearing monomer, the second inner wear-resistant bushing is welded to the inner side wall of the second outer metal bearing monomer, the second inner wear-resistant bushing and the first inner wear-resistant bushing are both provided with reserved oil storage cylinders at the top, the inner side wall of the second inner wear-resistant bushing is evenly rollingly connected with a second oil-conducting ball, the inner side wall of the first inner wear-resistant bushing is evenly rollingly connected with a first oil-conducting ball, the inner side wall of the second inner wear-resistant bushing and the first inner wear-resistant bushing are both provided with a stainless steel base layer, and a polysulfone rigid layer and a cobalt-based alloy wear-resistant protective layer are sequentially provided on the second inner wear-resistant bushing and the first inner wear-resistant bushing outside the stainless steel base layer.

[0006] Preferably, the first outer metal bearing shell monomer and the second outer metal bearing shell monomer are both made of carbon steel.

[0007] Preferably, the tops of the first outer metal bearing shell monomer and the second outer metal bearing shell monomer are evenly bonded with heat dissipation fins, and the heat dissipation fins are made of carbon fiber, which improves the air-cooling heat dissipation protection of the first outer metal bearing shell monomer and the second outer metal bearing shell monomer during operation.

[0008] Preferably, positioning strips are evenly welded on both sides of the first outer metal bearing shell monomer, and positioning slots matching the positioning strips are provided on the second outer metal bearing shell monomer, so as to improve the accuracy of the bearing shell structure when being assembled on the sliding bearing mechanism.

[0009] Preferably, the second inner wear-resistant bushing and the first inner wear-resistant bushing are both hollow structures, and the interiors of the second inner wear-resistant bushing and the first inner wear-resistant bushing are connected to the interior of the reserved oil storage cylinder.

[0010] Preferably, the second inner wear-resistant bushing and the first inner wear-resistant bushing are respectively provided with rolling limit cavities matching the second oil-conducting balls and the first oil-conducting balls, and the rolling limit cavities are communicated with the reserved oil storage cylinder.

[0011] Preferably, a sealing plug is threadedly connected to the top of the reserved oil storage cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The highly wear-resistant metal bearing is equipped with a first oil-conducting ball and a second oil-conducting ball, etc., so that the device optimizes its own structure. The user can unscrew the sealing plug threadedly connected to the reserved oil storage cylinder and introduce lubricating oil into the reserved oil storage cylinder and the corresponding second inner wear-resistant bushing and the cavity inside the first inner wear-resistant bushing. During actual operation, when relative movement occurs between the bearing structure and the shaft structure, the first oil-conducting ball evenly rolled and connected to the first inner wear-resistant bushing welded to the inner wall of the first outer metal bearing monomer, and the second inner wear-resistant bushing welded to the inner wall of the second outer metal bearing monomer. The second oil-conducting ball rollers evenly connected to the inner wear-resistant bushing will generate rolling friction with the outer wall of the shaft in contact with it, which will change the sliding friction inside the traditional sliding bearing mechanism into rolling friction, reduce the influence of friction, and the first oil-conducting ball rollers and the second oil-conducting ball rollers will bring out the lubricating oil inside the reserved oil storage cylinder, the second inner wear-resistant bushing and the first inner wear-resistant bushing when rolling, and use oil lubrication to further reduce the influence of friction, so that the friction reduction and lubrication structure can greatly reduce the wear caused by friction and improve the wear resistance of the device;

[0014] (2) The highly wear-resistant metal bearing is installed with a first inner wear-resistant bushing, etc., so that when the device is actually used, on the one hand, the first inner wear-resistant bushing is welded and installed on the inner wall of the first outer metal bearing monomer, and the second inner wear-resistant bushing is welded and installed on the inner wall of the second outer metal bearing monomer, thereby improving the structural strength of the entire bearing structure; on the other hand, a stainless steel base layer is provided inside the side walls of the second inner wear-resistant bushing and the first inner wear-resistant bushing, and a polysulfone rigid layer and a cobalt-based alloy wear-resistant protective layer are sequentially provided on the second inner wear-resistant bushing and the first inner wear-resistant bushing outside the stainless steel base layer, thereby improving the wear-resistant protective performance of the second inner wear-resistant bushing and the first inner wear-resistant bushing;

[0015] (3) The highly wear-resistant metal bearing is equipped with heat dissipation fins, etc., so that when the device is operated, on the one hand, for sliding bearing mechanisms in which the shaft structure is fixed and the bearing structure rotates, the heat loss during the movement of the bearing structure is relatively serious. At this time, the heat dissipation fins made of carbon fiber evenly bonded to the first outer metal bearing monomer and the second outer metal bearing monomer can expand the movement of airflow when the bearing rotates, thereby improving the air cooling protection of the first outer metal bearing monomer and the second outer metal bearing monomer during operation. On the other hand, the user can use the plug-in connection structure between the positioning strip and the positioning slot to achieve high-precision positioning and assembly of the first outer metal bearing monomer and the second outer metal bearing monomer, thereby improving the accuracy of the bearing structure when it is assembled on the sliding bearing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0017] Figure 2 This is a schematic side view of the structure of the first outer metal bearing shell of the utility model;

[0018] Figure 3 This is a schematic diagram of the top view of the structure of the first outer metal bearing shell monomer of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the side wall of the second inner wear-resistant bushing of the utility model.

[0020] In the figure: 1. first outer metal bearing shell; 2. positioning slot; 3. second inner wear-resistant bushing; 4. heat dissipation fin; 5. second oil guide ball; 6. second outer metal bearing shell; 7. positioning insert; 8. rolling limit cavity; 9. first inner wear-resistant bushing; 10. reserved oil storage cylinder; 11. sealing plug; 12. first oil guide ball; 13. cobalt-based alloy wear-resistant protective layer; 14. polysulfone rigid layer; 15. stainless steel base layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a highly wear-resistant metal bearing, comprising a first outer metal bearing monomer 1, a second inner wear-resistant bushing 3 and a first inner wear-resistant bushing 9, wherein a second outer metal bearing monomer 6 is disposed at one end of the first outer metal bearing monomer 1, the first inner wear-resistant bushing 9 is welded to the inner side wall of the first outer metal bearing monomer 1, and the second inner wear-resistant bushing 3 is welded to the inner side wall of the second outer metal bearing monomer 6;

[0023] The tops of the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 are both provided with reserved oil storage cylinders 10, the inner side wall of the second inner wear-resistant bushing 3 is evenly connected with the second oil guide ball 5, and the inner side wall of the first inner wear-resistant bushing 9 is evenly connected with the first oil guide ball 12;

[0024] The second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 are both provided with a stainless steel base layer 15 inside their side walls, and the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 outside the stainless steel base layer 15 are provided with a polysulfone rigid layer 14 and a cobalt-based alloy wear-resistant protective layer 13 in sequence;

[0025] The first outer metal bearing shell monomer 1 and the second outer metal bearing shell monomer 6 are both made of carbon steel, which ensures the structural strength of the first outer metal bearing shell monomer 1 and the second outer metal bearing shell monomer 6;

[0026] The tops of the first outer metal bearing shell 1 and the second outer metal bearing shell 6 are evenly bonded with heat dissipation fins 4, and the heat dissipation fins 4 are made of carbon fiber;

[0027] When in use, for those sliding bearing mechanisms with fixed shaft structures and rotating bush structures, the heat loss is more serious when the bush structure moves. At this time, the heat dissipation fins 4 made of carbon fiber evenly bonded to the first outer metal bush monomer 1 and the second outer metal bush monomer 6 are used to expand the movement of airflow when they rotate, thereby improving the air cooling and heat dissipation protection of the first outer metal bush monomer 1 and the second outer metal bush monomer 6 when they are running;

[0028] Positioning strips 7 are uniformly welded on both sides of the first outer metal bearing shell monomer 1, and a positioning slot 2 matching the positioning strips 7 is provided on the second outer metal bearing shell monomer 6;

[0029] When in use, the user can utilize the plug-in connection structure between the positioning insert strip 7 and the positioning slot 2 to achieve high-precision positioning and assembly of the first outer metal bearing shell monomer 1 and the second outer metal bearing shell monomer 6, thereby improving the accuracy of the bearing shell structure when being assembled on the sliding bearing mechanism;

[0030] The second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 are both hollow structures, and the interiors of the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 are connected to the interior of the reserved oil storage cylinder 10;

[0031] The second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 are respectively provided with rolling limit cavities 8 matching the second oil-conducting balls 5 and the first oil-conducting balls 12, and the rolling limit cavities 8 are connected to the reserved oil storage cylinder 10;

[0032] The top of the reserved oil storage cylinder 10 is threadedly connected with a sealing plug 11;

[0033] During use, the user can unscrew the sealing plug 11 threadedly connected on the reserved oil storage cylinder 10, and introduce lubricating oil into the cavities inside the reserved oil storage cylinder 10 and the corresponding second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9. During actual operation, when relative movement occurs between the bearing structure and the shaft structure, the first oil guide ball 12 evenly rolling and connected on the first inner wear-resistant bushing 9 welded to the inner wall of the first outer metal bearing monomer 1, and the second oil guide ball 5 evenly rolling and connected on the second inner wear-resistant bushing 3 welded to the inner wall of the second outer metal bearing monomer 6, will have rolling friction with the outer wall of the shaft in contact with them, which will change the sliding friction inside the traditional sliding bearing mechanism into rolling friction and reduce the influence of friction. In addition, when the first oil guide ball 12 and the second oil guide ball 5 roll, they will bring out the lubricating oil inside the reserved oil storage cylinder 10, the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9, and use oil lubrication to further reduce the influence of friction. Therefore, the friction reduction and lubrication structure can greatly reduce the wear caused by friction and improve the wear-resistant effect of the device.

[0034] When the embodiment of the present application is in use: the user can use the plug-in connection structure between the positioning strip 7 and the positioning slot 2 to achieve high-precision positioning and assembly of the first outer metal bearing shell monomer 1 and the second outer metal bearing shell monomer 6, thereby improving the accuracy of the bearing shell structure when assembled on the sliding bearing mechanism. At the same time, for those sliding bearing mechanisms in which the shaft structure is fixed and the bearing shell structure rotates, the heat loss during the movement of the bearing shell structure is more serious. At this time, the heat dissipation fins 4 made of carbon fiber evenly bonded to the first outer metal bearing shell monomer 1 and the second outer metal bearing shell monomer 6 can be used to expand the air when it rotates. The movement of the flow improves the air-cooling heat dissipation protection of the first outer metal bearing shell monomer 1 and the second outer metal bearing shell monomer 6 during operation. Furthermore, the user can unscrew the sealing plug 11 threadedly connected on the reserved oil storage cylinder 10, and introduce lubricating oil into the cavity inside the reserved oil storage cylinder 10 and the corresponding second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9. During actual operation, when relative movement occurs between the bearing shell structure and the shaft structure, the first oil guide ball 12 evenly rolling and connected on the first inner wear-resistant bushing 9 welded on the inner wall of the first outer metal bearing shell monomer 1, and the second inner wear-resistant bushing 9 welded on the inner wall of the second outer metal bearing shell monomer 6 The second oil-conducting ball 5 evenly rollingly connected on the bushing 3 will generate rolling friction with the outer wall of the shaft in contact with it, which will change the sliding friction inside the traditional sliding bearing mechanism into rolling friction, reduce the influence of friction, and the first oil-conducting ball 12 and the second oil-conducting ball 5 will bring out the lubricating oil inside the reserved oil storage cylinder 10, the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 when rolling, and use oil lubrication to further reduce the influence of friction, so that the friction reduction and lubrication structure can greatly reduce the wear caused by friction and improve the wear resistance of the device. In addition, on the one hand, By welding and installing a first inner wear-resistant bushing 9 on the inner wall of the first outer metal bearing shell unit 1, and welding and installing a second inner wear-resistant bushing 3 on the inner wall of the second outer metal bearing shell unit 6, the overall structural strength of the bearing shell structure is improved. On the other hand, by arranging a stainless steel base layer 15 inside the side walls of the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9, and arranging a polysulfone rigid layer 14 and a cobalt-based alloy wear-resistant protective layer 13 in turn on the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 outside the stainless steel base layer 15, the wear-resistant protective performance of the second inner wear-resistant bushing 3 and the first inner wear-resistant bushing 9 is improved.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly wear-resistant metal bearing bushing, characterized in that: The invention comprises a first outer metal bearing shell monomer (1), a second inner wear-resistant bushing (3) and a first inner wear-resistant bushing (9); a second outer metal bearing shell monomer (6) is arranged at one end of the first outer metal bearing shell monomer (1); the first inner wear-resistant bushing (9) is welded to the inner side wall of the first outer metal bearing shell monomer (1); the second inner wear-resistant bushing (3) is welded to the inner side wall of the second outer metal bearing shell monomer (6); the tops of the second inner wear-resistant bushing (3) and the first inner wear-resistant bushing (9) are both provided with reserved oil storage cylinders (10); The inner side wall of the second inner wear-resistant bushing (3) is evenly rollingly connected with a second oil-conducting ball (5), and the inner side wall of the first inner wear-resistant bushing (9) is evenly rollingly connected with a first oil-conducting ball (12). The inner sides of the second inner wear-resistant bushing (3) and the first inner wear-resistant bushing (9) are both provided with a stainless steel base layer (15). The second inner wear-resistant bushing (3) and the first inner wear-resistant bushing (9) outside the stainless steel base layer (15) are provided with a polysulfone rigid layer (14) and a cobalt-based alloy wear-resistant protective layer (13) in sequence.

2. A highly wear-resistant metal bearing bush according to claim 1, characterized in that: The first outer metal bearing shell monomer (1) and the second outer metal bearing shell monomer (6) are both made of carbon steel.

3. The highly wear-resistant metal bearing bush according to claim 1, characterized in that: The tops of the first outer metal bearing shell monomer (1) and the second outer metal bearing shell monomer (6) are both evenly bonded with heat dissipation fins (4), and the heat dissipation fins (4) are made of carbon fiber.

4. The highly wear-resistant metal bearing bush according to claim 1, characterized in that: Positioning strips (7) are uniformly welded on both sides of the first outer metal bearing shell monomer (1), and a positioning slot (2) matching the positioning strips (7) is provided on the second outer metal bearing shell monomer (6).

5. The highly wear-resistant metal bearing bush according to claim 1, characterized in that: The second inner wear-resistant bushing (3) and the first inner wear-resistant bushing (9) are both hollow structures, and the interiors of the second inner wear-resistant bushing (3) and the first inner wear-resistant bushing (9) are connected to the interior of the reserved oil storage cylinder (10).

6. The highly wear-resistant metal bearing bush according to claim 1, characterized in that: The second inner wear-resistant bushing (3) and the first inner wear-resistant bushing (9) are respectively provided with rolling limit cavities (8) matching the second oil-conducting ball (5) and the first oil-conducting ball (12), and the rolling limit cavities (8) are connected to the reserved oil storage cylinder (10).

7. The highly wear-resistant metal bearing bush according to claim 1, characterized in that: The top of the reserved oil storage cylinder (10) is threadedly connected with a sealing plug (11).

Images