Self-lubricating oilless bearing

Abstract

The self-lubricating oilless bearing comprises a bearing outer sleeve and a bearing inner sleeve which are thermally assembled together, a plurality of graphite block mounting holes are formed in the circumference of the inner wall of the bearing inner sleeve, a plurality of jacking holes are formed in the circumference of the end face of the bearing inner sleeve, and the jacking holes are communicated with the graphite block mounting holes. The inner end of the jacking hole is of an unthreaded hole structure, the outer end of the jacking hole is of a threaded hole structure, a lubricating graphite block is arranged in the graphite block installation hole, a jacking rod is installed in the jacking hole, the inner end of the jacking rod is of a polished rod structure, the outer end of the jacking rod is of a threaded rod structure, and a threaded rod at the outer end of the jacking rod and a threaded hole of the jacking hole are installed in a threaded mode. And a matching inclined surface corresponding to the jacking inclined surface is arranged at the inner end of the lubricating graphite block. According to the utility model, the problem that the equipment is irregularly shut down and replaced due to the fact that the bearing is easy to wear, deform or damage in the rotary support at the shaft end of the micro-filter equipment is solved, the normal use of the micro-filter is ensured, the service life of the self-lubricating oilless bearing is also ensured, and the maintenance frequency of the equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of bearings, and in particular to a self-lubricating oilless bearing. Background Technology

[0002] In the renovation of urban wastewater treatment plants, it is necessary to ensure the stability of the slewing support at the shaft end of the microfiltration equipment, and at the same time solve the problem of wear, deformation, and damage of the bearings in the microfiltration equipment after long-term rolling in water. As an important component of the slewing support at the shaft end of the microfiltration equipment, the bearing is prone to wear, deformation, or damage, resulting in irregular downtime for replacement and a high maintenance frequency. Utility Model Content

[0003] The present invention aims to address the shortcomings of the prior art by providing a self-lubricating oilless bearing.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A self-lubricating oilless bearing includes a bearing outer sleeve and a bearing inner sleeve that are thermally assembled together. The inner sleeve has a plurality of graphite block mounting holes on its inner wall and a plurality of jacking holes on its end face. The jacking holes are connected to the graphite block mounting holes. The inner end of the jacking hole is a smooth hole and the outer end is a threaded hole. A lubricating graphite block is installed in the graphite block mounting hole. A jacking rod is installed in the jacking hole. The inner end of the jacking rod is a smooth rod and the outer end is a threaded rod. The threaded rod at the outer end of the jacking rod is threadedly installed with the threaded hole of the jacking hole. The inner end of the jacking rod has a jacking inclined surface, and the inner end of the lubricating graphite block has a mating inclined surface corresponding to the jacking inclined surface.

[0006] The outer end of the jacking rod is equipped with a rotating end.

[0007] The inner wall of the bearing outer sleeve and the outer wall of the bearing inner sleeve are corresponding polygonal structures.

[0008] The thickness of the inner sleeve of the bearing is greater than the thickness of the outer sleeve of the bearing.

[0009] The beneficial effects of this utility model are: This utility model solves the problem of irregular equipment shutdown and replacement caused by easy wear, deformation or damage of bearings in the slewing support of the shaft end of the microfiltration equipment, ensuring the normal use of the microfiltration machine, guaranteeing the life of the self-lubricating oilless bearing, and reducing the maintenance frequency of the equipment. Attached Figure Description

[0010] Figure 1 This is the front view of the present invention;

[0011] Figure 2 This is a cross-sectional view of the present invention;

[0012] Figure 3A schematic diagram showing the bearing inner sleeve, graphite block mounting hole, and jacking hole inside the bearing inner sleeve;

[0013] Figure 4 A schematic diagram of the lubricating graphite block and the jacking rod;

[0014] Figure 5 This is a schematic diagram of the jacking rod of this utility model after it has been jacked a certain distance;

[0015] In the diagram: 1-Bearing outer sleeve; 2-Bearing inner sleeve; 3-Graphite block mounting hole; 4-Ejection hole; 5-Lubricating graphite block; 6-Ejection rod; 7-Ejection ramp; 8-Matching ramp; 9-Rotating end;

[0016] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0018] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] A self-lubricating oilless bearing, such as Figures 1 to 4As shown, it includes a bearing outer sleeve 1, a bearing inner sleeve 2, a graphite block mounting hole 3, an jacking hole 4, a lubricating graphite block 5, a jacking rod 6, a jacking inclined surface 7, a mating inclined surface 8, and a rotating end 9.

[0022] The outer wall of the bearing outer sleeve 1 is circular, and the inner wall is polygonal. The bearing outer sleeve 1 is manufactured by machining and is made of ultra-high molecular weight polyethylene.

[0023] The outer wall of the bearing inner sleeve 2 is polygonal, and the inner wall is circular. The bearing inner sleeve 2 is machined and made of high-strength brass.

[0024] The polygonal structures of the bearing outer sleeve 1 and the bearing inner sleeve 2 are fixed together by thermal assembly, which will not cause rotation.

[0025] The inner wall of the bearing inner sleeve 2 is provided with several graphite block mounting holes 3 around the circumference, and the end face of the bearing inner sleeve 2 is provided with several jacking holes 4 around the circumference. The jacking holes 4 are connected to the graphite block mounting holes 3. The inner end of the jacking hole 4 is a smooth hole structure and the outer end is a threaded hole structure.

[0026] During processing, several jacking holes 4 are first drilled around the end face of the bearing inner sleeve 2 using mechanical equipment, and the inner wall of the outer end of the jacking hole 4 is threaded. Then, a special tool is used to open a graphite block mounting hole 3 on the inner wall of the bearing inner sleeve 2 that communicates with the jacking hole 4.

[0027] A lubricating graphite block 5 is installed in the graphite block mounting hole 3, and a jacking rod 6 is installed in the jacking hole 4. The inner end of the jacking rod 6 that passes through the jacking hole 4 is a smooth rod structure and the outer end is a threaded rod structure. The threaded rod at the outer end of the jacking rod 6 is threadedly installed with the threaded hole of the jacking hole 4. The inner end of the jacking rod 6 is provided with a jacking inclined surface 7, and the inner end of the lubricating graphite block 5 is provided with a mating inclined surface 8 corresponding to the jacking inclined surface 7.

[0028] The outer end of the jacking rod 6 is provided with a rotating end 9, which facilitates the rotation of the jacking rod 6.

[0029] The inner wall of bearing outer sleeve 1 and the outer wall of bearing inner sleeve 2 are corresponding polygonal structures.

[0030] The number of sides of the polygonal structure of the inner wall of bearing outer sleeve 1 and the outer wall of bearing inner sleeve 2 shall not be less than 5.

[0031] For example, the inner wall of bearing outer sleeve 1 and the outer wall of bearing inner sleeve 2 are regular hexagonal structures.

[0032] The thickness of the inner sleeve 2 of the bearing is greater than the thickness of the outer sleeve 1 of the bearing.

[0033] In use, since a lubricating graphite block 5 is installed in the graphite block mounting hole 3, the lubricating graphite block 5 can lubricate the central shaft, reducing bearing wear. When the lubricating graphite block 5 can no longer contact the central shaft after prolonged use, the jacking rod 6 can be screwed in, and the jacking inclined surface 7 and the mating inclined surface 8 cooperate to push the lubricating graphite block 5 out towards the inner wall. Figure 5 As shown, this achieves continuous lubrication.

[0034] This invention solves the problem of irregular downtime and replacement of microfiltration equipment due to easy wear, deformation or damage of the bearing in the slewing support of the shaft end. It ensures the normal use of the microfiltration machine, guarantees the life of the self-lubricating oilless bearing, and reduces the maintenance frequency of the equipment.

[0035] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A self-lubricating oilless bearing, characterized in that, The bearing includes a bearing outer sleeve (1) and a bearing inner sleeve (2) that are thermally assembled together. The inner wall of the bearing inner sleeve (2) is provided with several graphite block mounting holes (3) around its circumference. The end face of the bearing inner sleeve (2) is provided with several jacking holes (4) around its circumference. The jacking holes (4) are connected to the graphite block mounting holes (3). The inner end of the jacking hole (4) is a smooth hole structure and the outer end is a threaded hole structure. A lubricating graphite block (5) is installed in the graphite block mounting hole (3). A jacking rod (6) is installed in the jacking hole (4). The inner end of the jacking rod (6) that passes through the jacking hole (4) is a smooth rod structure and the outer end is a threaded rod structure. The threaded rod at the outer end of the jacking rod (6) is threadedly installed with the threaded hole of the jacking hole (4). The inner end of the jacking rod (6) is provided with a jacking inclined surface (7). The inner end of the lubricating graphite block (5) is provided with a mating inclined surface (8) corresponding to the jacking inclined surface (7).

2. The self-lubricating oilless bearing according to claim 1, characterized in that, The outer end of the push rod (6) is provided with a rotating end (9).

3. The self-lubricating oilless bearing according to claim 2, characterized in that, The inner wall of the bearing outer sleeve (1) and the outer wall of the bearing inner sleeve (2) are corresponding polygonal structures.

4. The self-lubricating oilless bearing according to claim 3, characterized in that, The number of sides of the polygonal structure of the inner wall of the bearing outer sleeve (1) and the outer wall of the bearing inner sleeve (2) shall not be less than 5.

5. A self-lubricating oilless bearing according to claim 4, characterized in that, The inner wall of the bearing outer sleeve (1) and the outer wall of the bearing inner sleeve (2) are regular hexagonal structures.

6. A self-lubricating oilless bearing according to claim 5, characterized in that, The thickness of the inner sleeve (2) of the bearing is greater than the thickness of the outer sleeve (1) of the bearing.

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