Wear-resistant magnetic drive pump shaft sleeve

Abstract

The utility model discloses a wear-resistant magnetic drive pump shaft sleeve which comprises a shaft sleeve body, a first wear-resistant coating covers the outer side of the shaft sleeve body, a second wear-resistant coating is sprayed on the outer side of the first wear-resistant coating, a round through hole is formed in the center of the shaft sleeve body, and a plurality of annular grooves are formed in the inner wall of the round through hole. A circular through hole is formed in the outer side of the shaft sleeve body, four longitudinal heat dissipation grooves are formed in the inner wall of the circular through hole, clamping bases are fixedly connected to the two ends of the outer side of the shaft sleeve body, and grooves are formed in the positions, corresponding to the longitudinal heat dissipation grooves, of the clamping base at the top end. When the magnetic drive pump shaft sleeve idles, the shaft sleeve can be cooled, and the service life of the magnetic drive pump shaft sleeve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeves, in particular to a wear-resistant magnetic pump shaft sleeve. Background Art

[0002] The sleeve is a cylindrical mechanical part that is sleeved on the rotating shaft and is a component of the sliding bearing. Generally speaking, the sleeve and the bearing seat adopt an interference fit, and the sleeve and the shaft adopt a clearance fit. The similarity between the sleeve and the bearing is that both bear the load of the shaft, and the difference between the two is that the sleeve is an integral structure, and the shaft and the sleeve move relative to each other when rotating; while the bearing is a split type, and the inner and outer rings of the bearing itself move relative to each other when rotating. But in essence, the sleeve is actually a kind of sliding bearing.

[0003] The shaft sleeve of the magnetic pump is also called the isolation sleeve. It mainly plays the role of shaft sealing in the magnetic drive pump and is the only part that embodies no leakage. In the magnetic pump, the rotating shaft does not extend from the fixed pump body, and the isolation sleeve replaces the shaft sealing device to prevent the high-pressure liquid in the pump body from leaking out. At the same time, it prevents the high-pressure liquid in the pump body from leaking out and prevents air from entering the pump body. Therefore, the magnetic pump is equipped with a sealing device. The shaft and the pump body are isolated by a shaft sleeve instead of the shaft sealing device. The graphite shaft sleeve uses graphite material as the main base material. The graphite shaft sleeve has the characteristics of self-lubrication, high temperature resistance, corrosion resistance, and light weight.

[0004] The shaft sleeve of the magnetic pump is often damaged by friction due to the inevitable idling of the shaft sleeve during use. The existing shaft sleeve of the magnetic pump cannot withstand the wear caused by idling operation, resulting in a short service life and poor wear resistance.

[0005] Therefore, it is particularly important to design a wear-resistant magnetic pump sleeve to solve the above-mentioned defects. Utility Model Content

[0006] 1) Technical problems to be solved by the utility model

[0007] In view of the deficiencies in the prior art, the utility model designs a wear-resistant magnetic pump shaft sleeve, which aims to solve the technical problems in the prior art that the magnetic pump shaft sleeve has poor wear resistance, cannot withstand the wear caused by idling operation, and has a short service life.

[0008] 2) Technical solution

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A wear-resistant magnetic pump sleeve comprises a sleeve body, the outer side of the sleeve body is covered with a wear-resistant coating 1, the outer side of the wear-resistant coating 1 is sprayed with a wear-resistant coating 2, a circular through hole is opened in the center of the sleeve body, a plurality of annular grooves are opened on the inner wall of the circular through hole, four longitudinal heat dissipation grooves are opened on the inner wall of the circular through hole, both ends of the outer side of the sleeve body are fixedly connected with a holder, and a groove is opened at the top of the holder and at a position corresponding to the longitudinal heat dissipation groove.

[0011] As a preferred solution of the utility model, the sleeve body is made of flexible graphite.

[0012] By adopting the above technical solutions, the flexible graphite material has excellent heat resistance and cold resistance, as well as chemical corrosion resistance and self-lubrication.

[0013] As a preferred solution of the utility model, the wear-resistant coating 1 is made of ceramic coating material.

[0014] By adopting the above technical solution, the ceramic coating material has the characteristics of wear resistance, corrosion resistance, anti-sticking, high hardness, high temperature resistance, good biocompatibility, etc., which effectively improves the wear resistance of the sleeve body.

[0015] As a preferred solution of the utility model, the second wear-resistant coating is made of carbide coating material.

[0016] By adopting the above technical solution, the carbide coating has strong wear resistance, high hardness, dense coating, high bonding strength, good resistance to cavitation, erosion and sliding wear, etc., which effectively improves the overall wear resistance of the sleeve body and extends its service life.

[0017] As a preferred solution of the utility model, the circular through hole is a cylindrical structure, and the cross-section of the annular groove is a rectangular structure design.

[0018] As a preferred solution of the utility model, the longitudinal heat dissipation groove is communicated with the annular groove.

[0019] By adopting the above technical solution, the longitudinal heat dissipation groove is connected with the annular groove, and when the shaft sleeve body is heated up by friction during idling, the shaft sleeve body can be effectively cooled, thereby extending the service life of the shaft sleeve body.

[0020] 3) Beneficial effects

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] Firstly, the wear-resistant coating 1 composed of the ceramic coating and the wear-resistant coating 2 composed of the carbide coating improve the wear resistance of the sleeve body, effectively extending the service life of the sleeve body;

[0023] Secondly, the flexible graphite sleeve body has excellent heat resistance and cold resistance, as well as chemical corrosion resistance and self-lubrication;

[0024] Finally, the longitudinal heat dissipation groove is connected with the annular groove, which can effectively dissipate the heat of the running sleeve body and improve the durability of the sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the wear-resistant magnetic pump sleeve;

[0026] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the wear-resistant magnetic pump sleeve;

[0027] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A.

[0028] In the figure: 1. sleeve body; 101. wear-resistant coating 1; 102. wear-resistant coating 2; 2. circular through hole; 3. annular groove; 4. longitudinal heat dissipation groove; 5. holder; 6. groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Example:

[0031] The utility model provides a wear-resistant magnetic pump shaft sleeve, which aims to solve the technical problems of poor wear resistance of the magnetic pump shaft sleeve in the prior art, inability to withstand the wear caused by idling operation, and low service life;

[0032] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0033] First, see Figure 2-Figure 3A wear-resistant magnetic pump sleeve comprises a sleeve body 1, the sleeve body 1 is made of flexible graphite, the flexible graphite material is non-radiative and non-polluting, has excellent heat resistance and cold resistance, as well as chemical corrosion resistance and self-lubricating properties, the outer side of the sleeve body 1 is covered with a wear-resistant coating 101, the wear-resistant coating 101 is made of ceramic coating material, the wear-resistant coating 101 composed of the ceramic coating has the characteristics of wear resistance, corrosion resistance, anti-sticking, high hardness, high temperature resistance, good biocompatibility, etc., the outer side of the wear-resistant coating 101 is sprayed with a wear-resistant coating 2 102, the wear-resistant coating 2 102 is made of carbide coating material, the wear-resistant coating 2 102 composed of the carbide coating has strong wear resistance, high hardness, dense coating, high bonding strength, good cavitation resistance, erosion resistance and sliding wear resistance, effectively improving the overall wear resistance of the sleeve body 1 and extending the service life.

[0034] Among them, see Figure 1-Figure 2 A circular through hole 2 is provided at the center of the sleeve body 1. The circular through hole 2 is a cylindrical structure. A plurality of annular grooves 3 are provided on the inner wall of the circular through hole 2. The cross section of the annular grooves 3 is a rectangular structure design to improve lubricity.

[0035] For further information, see Figure 1-Figure 2 Four longitudinal heat dissipation grooves 4 are provided on the inner wall of the circular through hole 2, and the longitudinal heat dissipation grooves 4 are communicated with the annular grooves 3. Both ends of the outer side of the sleeve body 1 are fixedly connected with a holder 5, and a groove 6 is provided at the top holder 5 and at a position corresponding to the longitudinal heat dissipation groove 4. The longitudinal heat dissipation grooves 4 are communicated with the annular grooves 3. When the sleeve body 1 is idle and heated by friction, the sleeve body 1 can be effectively cooled, thereby extending the service life of the sleeve body 1.

[0036] In addition, it should be added based on the above embodiments that flexible graphite, ceramic coating and carbide coating are all existing technologies, and their internal working principles and operating procedures will not be described in detail here.

[0037] Working process of the utility model: the wear-resistant coating 101 made of ceramic coating material and the wear-resistant coating 102 made of carbide coating material can effectively enhance the wear resistance of the shaft sleeve, improve the wear resistance and friction resistance of the shaft sleeve, the shaft sleeve main body 1 made of flexible graphite material has excellent heat resistance and cold resistance, and can withstand the friction loss caused by the idling of the shaft sleeve main body 1 when the shaft sleeve main body 1 is idling, and the longitudinal heat dissipation groove 4 is connected with the annular groove 3, which can effectively dissipate the heat of the shaft sleeve main body 1 and extend its service life. The whole operation process is simple and convenient. Compared with the existing magnetic pump shaft sleeve, the utility model can improve the wear resistance of the magnetic pump shaft sleeve through design, and can dissipate the heat of the shaft sleeve when the magnetic pump shaft sleeve is idling, thereby extending the service life of the magnetic pump shaft sleeve.

[0038] 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. A wear-resistant magnetic pump sleeve, comprising a sleeve body (1), characterized in that: The outer side of the sleeve body (1) is covered with a wear-resistant coating 1 (101), and the outer side of the wear-resistant coating 1 (101) is sprayed with a wear-resistant coating 2 (102). A circular through hole (2) is provided at the center of the sleeve body (1), and a plurality of annular grooves (3) are provided on the inner wall of the circular through hole (2). Four longitudinal heat dissipation grooves (4) are provided on the inner wall of the circular through hole (2). Both ends of the outer side of the sleeve body (1) are fixedly connected with a holder (5), and a groove (6) is provided at the top of the holder (5) and at a position corresponding to the longitudinal heat dissipation groove (4).

2. The wear-resistant magnetic pump sleeve according to claim 1, characterized in that: The shaft sleeve body (1) is made of flexible graphite.

3. The wear-resistant magnetic pump sleeve according to claim 1, characterized in that: The wear-resistant coating 1 (101) is made of ceramic coating material.

4. The wear-resistant magnetic pump sleeve according to claim 1, characterized in that: The wear-resistant coating 2 (102) is made of carbide coating material.

5. The wear-resistant magnetic pump sleeve according to claim 1, characterized in that: The circular through hole (2) is a cylindrical structure, and the cross section of the annular groove (3) is a rectangular structure.

6. The wear-resistant magnetic pump sleeve according to claim 1, characterized in that: The longitudinal heat dissipation groove (4) is communicated with the annular groove (3).

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