Self-lubricating sliding bearing

Abstract

The utility model relates to the field of sliding bearings, and particularly discloses a self-lubricating sliding bearing which comprises a bottom plate, a shell and an oil storage tank, the shell is arranged on the bottom plate, screw seats are arranged at four corners of the bottom plate, screw holes are formed in the middle positions of the screw seats, the screw holes penetrate through the bottom plate, an inner ring is arranged in the shell, a shell cavity is formed between the inner ring and the shell, lubricating oil is arranged in the shell cavity, an outlet hole is formed in the inner ring, a lining pipe is arranged in the inner ring, and the inner ring is provided with a sealing ring. A transverse plate is arranged on the lining pipe, the oil storage tank is arranged on the outer side face of the shell, an oil inlet is formed in the top of the oil storage tank, an oil storage cavity is formed in the oil storage tank, the oil inlet is connected with the oil storage cavity, and a connecting groove is formed in the side face of the side, connected with the oil storage tank, of the shell and connected with the interior of a shell cavity. According to the self-lubricating sliding bearing provided by the utility model, automatic oil supplementation is realized, the service life is prolonged, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of sliding bearings, in particular to an automatic lubricating sliding bearing. Background Art

[0002] Sliding bearings are bearings that work under sliding friction. Sliding bearings work smoothly, reliably and without noise. Under liquid lubrication conditions, the sliding surfaces are separated by lubricating oil without direct contact, which can greatly reduce friction loss and surface wear. The oil film also has a certain vibration absorption capacity; but the starting friction resistance is large; the part of the shaft supported by the bearing is called the journal, and the part that matches the journal is called the bearing shell; the friction-reducing material layer cast on the inner surface of the bearing shell to improve the friction properties of the bearing shell surface is called the bearing liner; the materials of the bearing shell and the bearing liner are collectively called sliding bearing materials; sliding bearings are generally used under low-speed and heavy-load conditions, or in operating parts that are difficult to maintain and add lubricating oil.

[0003] Existing bearings use lubricating oil to reduce surface friction, but the lubricating oil will be lost during use and needs to be replenished regularly. This method is very troublesome. Failure to replenish the lubricating oil in time can easily damage the device. Therefore, an automatic lubricating sliding bearing is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic lubricating sliding bearing 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: an automatically lubricating sliding bearing, comprising a base plate, an outer shell, and an oil storage tank; the outer shell is arranged on the base plate, screw seats are arranged on the four corners of the base plate, a screw hole is arranged in the middle position of the screw seat, the screw hole penetrates the base plate, and the base plate is fixed by the screw seat to fix the device, an inner ring is arranged inside the outer shell, a shell cavity is arranged between the inner ring and the outer shell, lubricating oil is arranged in the shell cavity, an outlet hole is arranged on the inner ring, an inner liner pipe is arranged inside the inner ring, the lubricating oil is transported to the inner liner pipe through the outlet hole, a cross plate is arranged on the inner liner pipe, the oil storage tank is arranged on the outer side of the outer shell, an oil inlet is arranged on the top of the oil storage tank, an oil storage cavity is arranged inside the oil storage tank, the oil inlet is connected to the oil storage cavity, a connecting groove is arranged on the side of the outer shell connected to the oil storage tank, the connecting groove is connected to the inside of the shell cavity, and the lubricating oil inside the oil storage tank is transported to the shell cavity through the connecting groove.

[0006] Preferably, a plug is provided on the oil inlet, a thread is provided on the plug, a thread is provided inside the oil inlet, and the plug and the oil inlet are fixed by the provided thread.

[0007] Preferably, a limit plate is provided on the outer shell, and bolts are provided on the limit plate. The inner lining tube is limited by the limit plate, and the limit plate is fixed to the outer shell by the provided bolts. The bolts can be removed to remove the limit plate and replace the inner lining tube.

[0008] Preferably, a friction layer is provided on the inner lining tube, and the friction layer is provided on the surface in contact with the inner ring. The friction layer is an electroplated layer composed of bismuth or bismuth alloy, tin or tin-copper alloy. The friction between the inner lining tube and the inner ring is reduced by the provided friction layer.

[0009] Preferably, the transverse plate is composed of a graphite structure.

[0010] Preferably, the bottom of the base plate is provided with grinding grooves to increase friction and avoid slipping.

[0011] Preferably, a sealing gasket layer is provided at the position where the plug contacts the oil inlet to prevent the lubricating oil from leaking from the oil inlet.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the inner liner tube can be replaced by removing the limit plate, the lubricating oil can be replenished through the outlet hole, the lubricating oil can be replenished by storing the lubricating oil inside the shell cavity, the lubricating oil inside the shell cavity can be replenished by the provided oil storage tank, and the lubricating oil inside the oil storage tank can be replenished through the provided oil inlet, thereby realizing automatic replenishment of the lubricating oil, reducing the number of times the lubricating oil is added and reducing the loss of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Numbers in the figure: 1, bottom plate; 11, screw seat; 111, screw hole; 2, outer shell; 21, shell cavity; 22, inner ring; 23, outlet hole; 24, inner lining pipe; 25, cross plate; 26, limit plate; 3, oil storage tank; 31, oil inlet; 32, plug; 33, connecting groove. DETAILED DESCRIPTION

[0016] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-2 The utility model provides a technical solution: an automatic lubricating sliding bearing, comprising a base plate 1, a shell 2, and an oil storage tank 3; the shell 2 is arranged on the base plate 1, and screw seats 11 are arranged at the four corners of the base plate 1, and a screw hole 111 is arranged in the middle position of the screw seat 11, and the screw hole 111 penetrates the base plate 1, and the base plate 1 is fixed by the screw seat 11 to fix the device, an inner ring 22 is arranged inside the shell 2, a shell cavity 21 is arranged between the inner ring 22 and the shell 2, and lubricating oil is arranged in the shell cavity 21, and an outlet is arranged on the inner ring 22 Hole 23, an inner liner tube 24 is arranged inside the inner ring 22, the lubricating oil is transported to the inner liner tube 24 through the outlet hole 23, a transverse plate 25 is arranged on the inner liner tube 24, the oil storage tank 3 is arranged on the outer side of the outer shell 2, an oil inlet 31 is arranged on the top of the oil storage tank 3, an oil storage cavity is arranged inside the oil storage tank 3, the oil inlet 31 is connected to the oil storage cavity, a connecting groove 33 is arranged on the side of the outer shell 2 connected to the oil storage tank 3, the connecting groove 33 is connected to the inside of the shell cavity 21, and the lubricating oil inside the oil storage tank 3 is transported to the shell cavity 21 through the connecting groove 33.

[0020] Furthermore, a plug 32 is provided on the oil inlet 31 , and a thread is provided on the plug 32 . A thread is provided inside the oil inlet 31 , and the plug 32 and the oil inlet 31 are fixed by the provided thread.

[0021] Furthermore, a limiting plate 26 is provided on the outer shell 2, and bolts are provided on the limiting plate 26. The inner lining tube 24 is limited by the limiting plate 26, and the limiting plate 26 is fixed to the outer shell 2 by the provided bolts. The bolts can be removed to remove the limiting plate 26 and replace the inner lining tube 24.

[0022] Furthermore, a friction layer is provided on the inner lining tube 24, and the friction layer is provided on the surface in contact with the inner ring 22. The friction layer is an electroplated layer composed of bismuth or bismuth alloy, tin or tin-copper alloy. The friction between the inner lining tube 24 and the inner ring 22 is reduced by the provided friction layer.

[0023] Furthermore, the transverse plate 25 is made of a graphite structure.

[0024] Furthermore, the bottom of the base plate 1 is provided with grinding grooves to increase friction and avoid slipping.

[0025] Furthermore, a sealing gasket layer is provided at the contact position between the plug 32 and the oil inlet 31 to prevent the lubricating oil from leaking out of the oil inlet 31 .

[0026] Working principle: Turn the plug 32 to remove the plug 32 from the oil inlet 31, and let the lubricating oil flow from the oil inlet 31 into the oil storage tank 3. The lubricating oil in the oil storage tank 3 can enter the shell cavity 21 through the connecting groove 33, and enter the surface of the inner liner tube 24 through the outlet hole 23 on the inner ring 22. The lubricating oil passes between the surface of the inner liner tube 24 and the inner ring 22 to reduce friction. During use, the lubricating oil is lost and replenished with the lubricating oil inside the shell cavity 21 connected to the outlet hole 23. The friction between the inner liner tube 24 and the inner ring 22 is reduced by the friction layer set. The inner liner tube 24 can be replaced by removing the limit plate 26.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic lubricating sliding bearing, characterized in that: The invention comprises a bottom plate (1), a shell (2), and an oil storage tank (3); the shell (2) is arranged on the bottom plate (1); screw seats (11) are arranged at four corners of the bottom plate (1); a screw hole (111) is arranged at the middle position of the screw seat (11); the screw hole (111) penetrates the bottom plate (1); an inner ring (22) is arranged inside the shell (2); a shell cavity (21) is arranged between the inner ring (22) and the shell (2); lubricating oil is arranged in the shell cavity (21); and a screw hole (111) is arranged on the inner ring (22). The outlet hole (23) is provided inside the inner ring (22), an inner lining tube (24) is provided inside the inner lining tube (24), a transverse plate (25) is provided on the inner lining tube (24), the oil storage tank (3) is provided on the outer side of the outer shell (2), an oil inlet (31) is provided on the top of the oil storage tank (3), an oil storage cavity is provided inside the oil storage tank (3), the oil inlet (31) is connected to the oil storage cavity, a connecting groove (33) is provided on the side of the outer shell (2) connected to the oil storage tank (3), and the connecting groove (33) is connected to the inside of the shell cavity (21).

2. The automatic lubricating sliding bearing according to claim 1, characterized in that: The oil inlet (31) is provided with a plug (32), the plug (32) is provided with a thread, and a thread is provided inside the oil inlet (31).

3. The automatic lubricating sliding bearing according to claim 1, characterized in that: A limit plate (26) is provided on the housing (2), and bolts are provided on the limit plate (26).

4. The automatic lubricating sliding bearing according to claim 1, characterized in that: The inner lining tube (24) is provided with a friction layer, and the friction layer is provided on the surface in contact with the inner ring (22).

5. The automatic lubricating sliding bearing according to claim 1, characterized in that: The transverse plate (25) is composed of a graphite structure.

6. The automatic lubricating sliding bearing according to claim 1, characterized in that: The bottom of the base plate (1) is provided with grinding patterns.

7. The automatic lubricating sliding bearing according to claim 2, characterized in that: A sealing cushion layer is provided at the position where the plug (32) contacts the oil inlet (31).

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