Wear-resistant sliding bearing

Abstract

The utility model relates to the technical field of sliding bearings, and discloses a wear-resistant sliding bearing which comprises a lower bearing seat, the top of the lower bearing seat is in bolted connection with an upper bearing seat, and a lining is fixedly installed between the upper bearing seat and the lower bearing seat. According to the utility model, a wear-resistant layer is formed on the surface of the bushing by using the wear-resistant alloy coating, so that the wear resistance of the bearing is remarkably improved, and solid lubricant particles are stably supplied to a friction interface in the friction process to form a lubricating film, so that the bearing can automatically supplement lubricant, reduce friction and wear and improve the lubricating effect in the working process; the wear resistance of the bearing is further improved, the solid lubricant particles are always attached to the working shaft under the action of the elastic force of the first spring, stable supply of the lubricant is guaranteed, and the service life of the solid lubricant particles is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding bearings, and particularly relates to a wear-resistant sliding bearing. Background Technique

[0002] A sliding bearing is a bearing that works under sliding friction. The sliding bearing works smoothly, reliably, and noiselessly. Under the condition of liquid lubrication, the sliding surfaces are separated by lubricating oil and do not come into direct contact, which can greatly reduce the friction loss and surface wear. The oil film also has a certain vibration absorption capacity, but the starting friction resistance is relatively large. The part of the shaft supported by the bearing is called the journal, and the part mating with the journal is called the bearing bush.

[0003] Most of the sliding bearings in the prior art have a single structure. Lubricating oil is added only through an oil injection port opened in the bearing cover and the bearing bush. The adding and replenishing efficiency is slow and uneven, which easily leads to accelerated wear of the bearing bush and the working shaft. Therefore, a wear-resistant sliding bearing is proposed to solve the above-mentioned problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a wear-resistant sliding bearing aiming at the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a wear-resistant sliding bearing, including a lower bearing seat, the top of the lower bearing seat is bolted with an upper bearing seat, a bushing is fixedly installed between the upper bearing seat and the lower bearing seat, a wear-resistant alloy coating is arranged on the inner wall of the bushing, a self-lubricating mechanism is arranged on the upper bearing seat, and a fixing mechanism is arranged on the self-lubricating mechanism;

[0006] The self-lubricating mechanism includes: an installation cavity, which is opened inside the upper bearing seat, a jack is opened at the top of the upper bearing seat, and the jack is communicated with the installation cavity. An insertion plate is inserted into the jack. The bottom of the insertion plate is fixedly connected with a telescopic rod. The bottom of the telescopic rod is fixedly connected with an installation plate. A number of solid lubricant particles are embedded in the bottom of the installation plate. The outer wall of the telescopic rod is movably sleeved with a first spring. The top of the first spring is fixedly connected with the insertion plate, and the bottom of the first spring is connected with the installation plate.

[0007] Preferably, through holes are opened on the inner wall of the bushing, and the installation plate is slidably connected with the inner wall of the through holes.

[0008] Preferably, the material of the wear-resistant alloy coating is nickel-based alloy, which is cladded on the inner wall of the bushing by laser cladding technology. The material of the solid lubricant particles is molybdenum disulfide. Due to its layered structure, weak van der Waals forces exist between its layers. Therefore, excellent solid lubrication effects can be provided even under high temperature and high pressure conditions.

[0009] Preferably, the fixing mechanism includes a chute which is formed on the top of the plug board. A wedge-shaped slider is slidably connected to the inner wall of the chute, and the front surface of the wedge-shaped slider is inserted into the jack. The back surface of the wedge-shaped slider is fixedly connected to a second spring, and the rear end of the second spring is fixedly connected to the inner wall of the chute. The top of the wedge-shaped slider is fixedly connected to a push plate.

[0010] Preferably, a slot is formed on the inner wall of the jack, and the front end of the wedge-shaped slider is inserted into the slot.

[0011] Preferably, there are two sets of the fixing mechanisms, and the two sets of fixing mechanisms are oppositely arranged on the top of the plug board.

[0012] The utility model adopts the above technical solutions, and can bring the following beneficial effects:

[0013] 1. For the wear-resistant sliding bearing, through the combined use of the wear-resistant alloy coating and the self-lubricating mechanism, a wear-resistant layer is formed on the surface of the bushing by the wear-resistant alloy coating, significantly improving the wear resistance of the bearing. The solid lubricant particles are stably supplied to the friction interface during the friction process to form a lubricating film, enabling the bearing to automatically replenish the lubricant during operation, reducing friction and wear, improving the lubrication effect, and further enhancing the wear resistance of the bearing. The solid lubricant particles are always in contact with the working shaft by the elastic force of the first spring, ensuring the stable supply of the lubricant and extending the service life of the solid lubricant particles.

[0014] 2. For the wear-resistant sliding bearing, through the combined use of the chute, the wedge-shaped slider, the second spring, and the push plate, the plug board is fixed by the wedge-shaped slider. The push plate drives the wedge-shaped slider to slide along the inner wall of the chute and compress the second spring, thereby releasing the fixation of the plug board, enabling the plug board to be withdrawn from the installation cavity, facilitating the replacement and maintenance of the solid lubricant particles, and improving the practicability. Description of the Drawings

[0015] Figure 1 is a front structural schematic diagram of the utility model;

[0016] Figure 2 is a front cross-sectional view of the utility model;

[0017] Figure 3 is a right cross-sectional view of the utility model;

[0018] Figure 4 is Figure 3 an enlarged view of part A of

[0019] In the figure: 1. Lower bearing seat; 2. Upper bearing seat; 3. Bushing; 4. Wear-resistant alloy coating; 5. Self-lubricating mechanism; 51. Installation cavity; 52. Insertion plate; 53. Telescopic rod; 54. Installation plate; 55. Solid lubricant particles; 56. First spring; 6. Fixing mechanism; 61. Chute; 62. Wedge-shaped slider; 63. Second spring; 64. Push plate. Specific embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "several" means two or more unless otherwise specifically defined.

[0024] Please refer to Figures 1-4, an embodiment of the present utility model is: a wear-resistant sliding bearing, which includes a lower bearing seat 1. The top of the lower bearing seat 1 is bolted with an upper bearing seat 2. A bushing 3 is fixedly installed between the upper bearing seat 2 and the lower bearing seat 1. An anti-wear alloy coating 4 is provided on the inner wall of the bushing 3. The material of the anti-wear alloy coating 4 is nickel-based alloy and is cladded on the inner wall of the bushing 3 by laser cladding technology. A self-lubricating mechanism 5 is provided on the upper bearing seat 2, and a fixing mechanism 6 is provided on the self-lubricating mechanism 5; the self-lubricating mechanism 5 includes: an installation cavity 51, which is opened inside the upper bearing seat 2. A jack is opened at the top of the upper bearing seat 2, and the jack is communicated with the installation cavity 51. A plug board 52 is inserted into the jack. The bottom of the plug board 52 is fixedly connected with a telescopic rod 53. The bottom end of the telescopic rod 53 is fixedly connected with an installation board 54. A through hole is opened on the inner wall of the bushing 3, and the installation board 54 is slidably connected with the inner wall of the through hole. A number of solid lubricant particles 55 are embedded at the bottom of the installation board 54. The material of the solid lubricant particles 55 is molybdenum disulfide. Due to its layered structure, weak van der Waals forces exist between its layers. Therefore, excellent solid lubrication effects can be provided even under high temperature and high pressure conditions. A first spring 56 is movably sleeved on the outer wall of the telescopic rod 53. The top end of the first spring 56 is fixedly connected with the plug board 52, and the bottom end of the first spring 56 is connected with the installation board 54. An anti-wear layer is formed on the surface of the bushing 3 by using the anti-wear alloy coating 4, significantly improving the wear resistance of the bearing. The solid lubricant particles 55 are stably supplied to the friction interface during the friction process to form a lubricating film, enabling the bearing to automatically replenish lubricant during operation, reducing friction and wear, improving the lubrication effect, and further enhancing the wear resistance of the bearing. The first spring 56 makes the solid lubricant particles 55 always fit with the working shaft by its own elastic force, ensuring the stable supply of lubricant and extending the service life of the solid lubricant particles 55.

[0025] Working principle: An anti-wear layer is formed on the surface of the bushing 3 by using the anti-wear alloy coating 4, significantly improving the wear resistance of the bearing. The solid lubricant particles 55 are stably supplied to the friction interface during the friction process to form a lubricating film, enabling the bearing to automatically replenish lubricant during operation, reducing friction and wear, improving the lubrication effect. And under the action of the elastic force of the first spring 56 itself, a downward force is generated on the telescopic rod 53 and the installation board 54, so that the solid lubricant particles 55 always fit with the working shaft, ensuring the stable supply of lubricant and extending the service life of the solid lubricant particles 55.

[0026] Please refer to Figures 1-4, on the basis of the above embodiments, in another embodiment of the present utility model, the fixing mechanism 6 includes: a chute 61, the chute 61 is opened on the top of the plug board 52, a wedge-shaped slider 62 is slidably connected to the inner wall of the chute 61, and the front surface of the wedge-shaped slider 62 is inserted into the jack. A slot is opened on the inner wall of the jack, the front end of the wedge-shaped slider 62 is inserted into the slot, the back surface of the wedge-shaped slider 62 is fixedly connected to a second spring 63, and the rear end of the second spring 63 is fixedly connected to the inner wall of the chute 61. A push plate 64 is fixedly connected to the top of the wedge-shaped slider 62. There are two groups of the fixing mechanisms 6, and the two groups of the fixing mechanisms 6 are oppositely arranged on the top of the plug board 52. The plug board 52 is fixed by the wedge-shaped slider 62, and the push plate 64 is used to drive the wedge-shaped slider 62 to slide along the inner wall of the chute 61 and compress the second spring 63, so as to release the fixation of the plug board 52, enabling the plug board 52 to be withdrawn from the installation cavity 51, facilitating the replacement and maintenance of the solid lubricant particles 55, and improving the practicability.

[0027] Working principle: The plug board 52 is fixed by the wedge-shaped slider 62. By pushing the push plate 64, the wedge-shaped slider 62 is driven to slide along the inner wall of the chute 61 and compress the second spring 63, so that the wedge-shaped slider 62 disengages from the slot and retracts into the chute 61, thereby releasing the fixation of the plug board 52. Then, the push plate 64 is pulled upward to drive the plug board 52 to move, enabling the plug board 52 to be withdrawn from the installation cavity 51, facilitating the replacement and maintenance of the solid lubricant particles 55.

[0028] The present utility model provides a wear-resistant sliding bearing. There are many methods and ways to specifically implement this technical solution. The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. Each component not clearly defined in this embodiment can be implemented by the prior art.

Claims

1. A wear-resistant sliding bearing, comprising a lower bearing seat (1), characterized in that: The top of the lower bearing block (1) is bolted with an upper bearing block (2). A bushing (3) is fixedly installed between the upper bearing block (2) and the lower bearing block (1). The inner wall of the bushing (3) is provided with a wear-resistant alloy coating (4). A self-lubricating mechanism (5) is arranged on the upper bearing block (2), and a fixing mechanism (6) is arranged on the self-lubricating mechanism (5). The self-lubricating mechanism (5) includes: an installation cavity (51) which is opened inside the upper bearing block (2). A jack is opened at the top of the upper bearing block (2), and the jack is communicated with the installation cavity (51). A plug board (52) is inserted into the jack. The bottom of the plug board (52) is fixedly connected with a telescopic rod (53). The bottom end of the telescopic rod (53) is fixedly connected with an installation board (54). A number of solid lubricant particles (55) are embedded at the bottom of the installation board (54). The outer wall of the telescopic rod (53) is movably sleeved with a first spring (56). The top end of the first spring (56) is fixedly connected with the plug board (52), and the bottom end of the first spring (56) is connected with the installation board (54).

2. The wear-resistant sliding bearing according to claim 1, wherein: Through holes are opened in the inner wall of the bushing (3), and the installation board (54) is slidably connected with the inner wall of the through holes.

3. A wear-resistant sliding bearing according to claim 1, characterized in that: The material of the wear-resistant alloy coating (4) is nickel-based alloy, and the material of the solid lubricant particles (55) is molybdenum disulfide.

4. A wear-resistant sliding bearing according to claim 1, characterized in that: The fixing mechanism (6) includes: a chute (61) which is opened at the top of the plug board (52). A wedge-shaped slider (62) is slidably connected to the inner wall of the chute (61), and the front surface of the wedge-shaped slider (62) is inserted into the jack. The back surface of the wedge-shaped slider (62) is fixedly connected with a second spring (63), and the rear end of the second spring (63) is fixedly connected with the inner wall of the chute (61). The top of the wedge-shaped slider (62) is fixedly connected with a push plate (64).

5. A wear-resistant sliding bearing according to claim 4, characterized in that: A slot is opened in the inner wall of the jack, and the front end of the wedge-shaped slider (62) is inserted into the slot.

6. A wear-resistant sliding bearing according to claim 4, characterized in that: The number of the fixing mechanisms (6) is two groups, and the two groups of fixing mechanisms (6) are oppositely arranged at the top of the plug board (52).

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