CN203412802U

CN203412802U - Graphite bearing capable of reducing axial load

Info

Publication number: CN203412802U
Application number: CN201320384171.XU
Authority: CN
Inventors: 潘晓晖; 林安国; 赖明勇
Original assignee: SHANGHAI CHUANGKE PUMP MANUFACTURE CO Ltd
Current assignee: SHANGHAI CHUANGKE PUMP MANUFACTURE CO Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2014-01-29
Anticipated expiration: 2023-06-27

Abstract

The utility model provides a graphite bearing capable of reducing an axial load. Grooves are formed on the fitting surface of the graphite bearing; the grooves are communicated with bearing runners of the graphite bearing; eight grooves are formed; each groove is arranged between the bearing runners of the graphite bearing; the eight grooves form two groups of spiral grooves of first spiral grooves and second spiral grooves; each group of spiral grooves comprise four grooves; the first spiral grooves extend from inside to outside by taking the graphite bearing as a starting point between the bearing runners in a spiral manner; the second spiral grooves and the first spiral grooves are symmetrically distributed. By adopting the graphite bearing, the axial pressure can be effectively reduced; the load of a thrust plate is reduced; the service life of the thrust plate is prolonged; the service life of a shield pump is prolonged.

Description

Can reduce the graphite bearing of axial load

Technical field

The utility model relates to a kind of shield pump bearing, particularly, relates to a kind of graphite bearing that reduces axial load.

Background technique

The bearing of canned motorpump generally adopts graphite bearing, and graphite bearing has advantages of selflubricating, high temperature resistant, corrosion-resistant, light weight, long service life.But the fitting surface of the graphite bearing of existing canned motorpump is plane, when axial pressure is large, fitting surface cannot flow backwards high pressure water to evacuate, and can make on the contrary high pressure water produce downward thrust, increases the weight of the load of thrust plate, cause thrust plate load to weigh, wear and tear greatly, affect the working life of canned motorpump.

Model utility content

For defect of the prior art, the purpose of this utility model is to provide a kind of graphite bearing that reduces axial load.

According to an aspect of the present utility model, a kind of graphite bearing that reduces axial load is provided, on the fitting surface of this graphite bearing, be provided with groove, groove is communicated with the bearing runner of graphite bearing.

Preferably, the quantity of groove is eight, each groove be arranged on graphite bearing each to along between the adjacent bearing runner of graphite bearing circumferential direction.

Preferably, eight grooves form the first spiral chute and two groups of spiral chutes of the second spiral chute, and every group of spiral chute comprises four grooves, wherein, the first spiral chute be take graphite bearing axle center as starting point extension from inside to outside in the shape of a spiral between each bearing runner, and the second spiral chute and the first spiral chute are symmetrical.

Compared with prior art, the utlity model has following beneficial effect: the utility model designs groove on the fitting surface of graphite bearing, groove is communicated with bearing runner, and groove curl distributes.When canned motorpump operation, when axial pressure is large, the high pressure water in groove can produce thrust upwards, alleviates axial pressure, thereby reduces the load of thrust plate, improves thrust plate working life, effectively extends the working life of canned motorpump.And groove is communicated with bearing runner, can lubrication assistant graphite bearing.

Accompanying drawing explanation

By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:

Fig. 1 is the structural representation of the utility model graphite bearing;

In figure: 1 fitting surface that is graphite bearing, 2 for groove, 3 be bearing runner.

Embodiment

Below in conjunction with specific embodiment, the utility model is elaborated.Following examples will contribute to those skilled in the art further to understand the utility model, but not limit in any form the utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection domain of the present utility model.

Refer to Fig. 1, a kind of graphite bearing that reduces axial load, is provided with groove 2 on the fitting surface 1 of this graphite bearing, and groove 2 is communicated with the bearing runner 3 of graphite bearing.

Further, the quantity of groove 2 is eight, each groove 2 be arranged on graphite bearing each to along between the adjacent bearing runner 3 of graphite bearing circumferential direction.And eight grooves 2 form the first spiral chute and two groups of spiral chutes of the second spiral chute, every group of spiral chute comprises four grooves 2, wherein, the first spiral chute be take graphite bearing axle center as starting point extension from inside to outside in the shape of a spiral between each bearing runner 3, and the second spiral chute and the first spiral chute are symmetrical.

Compared with prior art, the utlity model has following beneficial effect: the utility model designs groove on the fitting surface of graphite bearing, groove is communicated with bearing runner, and groove curl distributes.When canned motorpump operation, when axial pressure is large, the high pressure water in groove can produce thrust upwards, alleviates axial force, thereby reduces the load of thrust plate, improves thrust plate working life, effectively extends the working life of canned motorpump.And groove is communicated with bearing runner, can lubrication assistant graphite bearing.

Above specific embodiment of the utility model is described.It will be appreciated that, the utility model is not limited to above-mentioned particular implementation, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present utility model.

Claims

1. can reduce a graphite bearing for axial load, it is characterized in that, on the fitting surface of described graphite bearing, be provided with groove, described groove is communicated with the bearing runner of graphite bearing.

2. the graphite bearing that reduces axial load according to claim 1, is characterized in that, the quantity of described groove is eight, described each groove be arranged on graphite bearing each to along between the adjacent bearing runner of graphite bearing circumferential direction.

3. the graphite bearing that reduces axial load according to claim 2, it is characterized in that, described eight grooves form the first spiral chute and two groups of spiral chutes of the second spiral chute, every group of spiral chute comprises four grooves, wherein, the first spiral chute be take graphite bearing axle center as starting point extension from inside to outside in the shape of a spiral between each bearing runner, and the second spiral chute and the first spiral chute are symmetrical.