Shaft sleeve structure of generator

Abstract

The utility model relates to the technical field of generators, in particular to a generator shaft sleeve structure, which comprises a shaft sleeve body, two mounting flanges and two sealing rubber rings, and is characterized in that the shaft sleeve body is provided with a plurality of lubricating grooves, a plurality of anti-skid lines, two sealing grooves and a plurality of heat dissipation grooves; the lubricating grooves are formed in the inner side wall of the shaft sleeve body, lubricating agents can be evenly distributed, the friction resistance between a shaft and the shaft sleeve is reduced, the friction force between the shaft sleeve and a bearing can be increased through the anti-skid lines, and the heat dissipation effect is improved through the heat dissipation grooves. The heat generated by the shaft sleeve and the shaft can be quickly dissipated to the surrounding environment, leakage of a lubricant can be effectively prevented through the sealing rubber ring, meanwhile, external dust and impurities are prevented from entering the shaft sleeve, the shaft sleeve has excellent wear resistance, lubricity, heat dissipation performance and sealing performance, the maintenance frequency and the maintenance cost of the generator can be remarkably reduced, and the service life of the generator is prolonged. And the economic benefit of the generator is improved, so that the problem of poor structural stability of the existing generator shaft sleeve is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator technical field especially relates to a generator shaft sleeve structure. BACKGROUND

[0002] The generator is a kind of device for converting mechanical energy into electric energy, and its core components include rotor, stator, bearing and shaft sleeve etc. As the key connecting component between generator shaft and bearing, shaft sleeve mainly plays the role of supporting, fixing and reducing friction. In the process of generator operation, shaft sleeve needs to bear large radial and axial load, and also needs to maintain good lubrication and heat dissipation performance under high-speed rotating condition.

[0003] Traditional generator shaft sleeve usually adopts simple cylindrical structure, and the material is mostly ordinary carbon steel or cast iron. Although such shaft sleeve has lower manufacturing cost, it has the problem of insufficient wear resistance in actual use. The shaft sleeve of ordinary material is prone to wear after long-time operation, which leads to the increase of the gap between shaft and bearing, affecting the operation precision and stability of generator. SUMMARY

[0004] The utility model aims at providing a kind of generator shaft sleeve structure, to solve the problem of poor stability of existing generator shaft sleeve structure.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of generator shaft sleeve structure, including shaft sleeve body, two installation flanges and two sealing rubber rings, the shaft sleeve body has multiple lubricating grooves, multiple anti-skid lines, two sealing grooves and multiple heat dissipation grooves;

[0006] Two installation flanges are fixedly connected with the shaft sleeve body respectively, and are located on the two sides of the shaft sleeve body respectively, two sealing grooves are located on the two sides of the shaft sleeve body respectively, two sealing rubber rings are installed in two sealing grooves respectively, multiple lubricating grooves are located on the inner side wall of the shaft sleeve body, multiple anti-skid lines are located on the outer surface of the shaft sleeve body respectively, and multiple heat dissipation grooves are located on the outer surface of the shaft sleeve body respectively.

[0007] Among them, the depth of anti-skid line is 0.1mm to 0.5mm, and the width is 0.5mm to 1.5mm.

[0008] Among them, the outer diameter of installation flange is greater than the outer diameter of shaft sleeve body, and the thickness of installation flange is 1mm to 3mm.

[0009] Among them, the material of shaft sleeve body is high-strength alloy steel or stainless steel, and the surface is heat treated to improve wear resistance.

[0010] Among them, the inner surface of shaft sleeve body is coated with wear-resistant coating, and the wear-resistant coating is polytetrafluoroethylene or ceramic coating.

[0011] The utility model discloses a generator shaft sleeve structure, including shaft sleeve body, two installation flanges and two sealing rubber rings, the shaft sleeve body has a plurality of lubricating grooves, a plurality of antiskid lines, two sealing grooves and a plurality of heat dissipation grooves, two installation flanges are fixedly connected with the shaft sleeve body respectively, and are located two sides of the shaft sleeve body respectively, two sealing grooves are located two sides of the shaft sleeve body respectively, two sealing rubber rings are installed in two sealing grooves respectively, a plurality of lubricating grooves are all located the inner side wall of the shaft sleeve body, a plurality of antiskid lines are located the outer surface of the shaft sleeve body respectively, and a plurality of heat dissipation grooves are located the outer surface of the shaft sleeve body respectively. By adopting high-strength alloy steel or stainless steel material, and heat treatment and wear-resistant coating are coated to the surface of the shaft sleeve, the wear resistance and corrosion resistance of the shaft sleeve are improved significantly, and the service life of the shaft sleeve is prolonged. The inner side wall of the shaft sleeve body is equipped with a plurality of lubricating grooves, can evenly distribute lubricant, reduce the friction resistance between the shaft and the shaft sleeve, reduce energy consumption, and improve the operation efficiency of the generator. The outer surface of the shaft sleeve body is equipped with a plurality of antiskid lines, can increase the friction between the shaft sleeve and the bearing, prevent the shaft sleeve from slipping or loosening during high-speed operation, and ensure the stability of the generator operation. The outer surface of the shaft sleeve body is equipped with a plurality of heat dissipation grooves, can quickly dissipate the heat generated by the shaft sleeve and the shaft to the surrounding environment, prevent the shaft temperature from being too high, and avoid the performance degradation or damage of the material caused by overheating. The two sides of the shaft sleeve body are equipped with sealing grooves, and the sealing grooves are equipped with sealing rubber rings, which can effectively prevent the leakage of lubricant, prevent external dust and impurities from entering the shaft sleeve, ensure the cleanliness and lubrication effect of the shaft sleeve, and solve the problem of poor stability of the existing generator shaft sleeve structure. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows.

[0013] Fig. 1 is the structure diagram of the utility model discloses a kind of generator shaft sleeve structure.

[0014] Fig. 2 is the sectional view of the utility model discloses a kind of generator shaft sleeve structure.

[0015] In the figure: 1 - shaft sleeve body, 2 - mounting flange, 3 - sealing rubber ring, 4 - lubricating groove, 5 - anti-skid line, 6 - sealing groove, 7 - heat dissipation groove, 8 - wear-resistant coating. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0017] Please refer to Figs. 1-2 The present application provides a generator shaft sleeve structure, comprising a shaft sleeve body 1, two mounting flanges 2 and two sealing rubber rings 3, the shaft sleeve body 1 has a plurality of lubricating grooves 4, a plurality of anti-skid lines 5, two sealing grooves 6 and a plurality of heat dissipation grooves 7.

[0018] Two mounting flanges 2 are respectively fixedly connected with the shaft sleeve body 1 and are respectively located on both sides of the shaft sleeve body 1, two sealing grooves 6 are respectively located on both sides of the shaft sleeve body 1, two sealing rubber rings 3 are respectively installed in the two sealing grooves 6, a plurality of lubricating grooves 4 are located on the inner side wall of the shaft sleeve body 1, a plurality of anti-skid lines 5 are respectively located on the outer surface of the shaft sleeve body 1, and a plurality of heat dissipation grooves 7 are respectively located on the outer surface of the shaft sleeve body 1.

[0019] The depth of the anti-skid line is 0.1mm to 0.5mm, and the width is 0.5mm to 1.5mm.

[0020] The outer diameter of the mounting flange 2 is greater than the outer diameter of the shaft sleeve body 1, and the thickness of the mounting flange 2 is 1mm to 3mm.

[0021] The material of the shaft sleeve body 1 is high-strength alloy steel or stainless steel, and the surface is heat treated to improve wear resistance.

[0022] The inner surface of the shaft sleeve body 1 is coated with a wear-resistant coating 8, and the wear-resistant coating 8 is polytetrafluoroethylene or ceramic coating.

[0023] In the embodiment, by adopting high-strength alloy steel or stainless steel material, and heat treating and coating wear-resistant coating 8 on the surface of the shaft sleeve, the wear resistance and corrosion resistance of the shaft sleeve are significantly improved, and the service life of the shaft sleeve is prolonged. The inner side wall of the shaft sleeve body 1 is provided with a plurality of lubricating grooves 4, which can uniformly distribute lubricant, reduce the friction resistance between the shaft and the shaft sleeve, reduce energy consumption, and improve the operating efficiency of the generator. The outer surface of the shaft sleeve body 1 is provided with a plurality of anti-skid lines 5, which can increase the friction between the shaft sleeve and the bearing, prevent the shaft sleeve from slipping or loosening during high-speed operation, and ensure the stability of the generator operation. The outer surface of the shaft sleeve body 1 is provided with a plurality of heat dissipation grooves 7, which can quickly dissipate the heat generated by the shaft sleeve and the shaft to the surrounding environment, prevent the shaft temperature from being too high, and avoid the performance degradation or damage caused by overheating. The shaft sleeve body 1 is provided with a sealing groove 6 on both sides, and a sealing rubber ring 3 is installed in the sealing groove 6, which can effectively prevent the leakage of lubricant, prevent external dust and impurities from entering the shaft sleeve, and ensure the cleanliness and lubrication effect of the shaft sleeve. The shaft sleeve body 1 is provided with a mounting flange 2 on both sides, and the outer diameter of the mounting flange 2 is greater than the outer diameter of the shaft sleeve body 1, and the thickness is 1mm to 3mm. The shaft sleeve can be firmly installed on the generator shaft by bolts or other fixing methods, which is convenient to install and disassemble, and is not easy to loosen during operation. Through optimization design and material selection, the shaft sleeve has excellent wear resistance, lubricity, heat dissipation and sealing performance, which can significantly reduce the maintenance frequency and cost of the generator, improve the economic benefit of the generator, and solve the problem of poor structural stability of the existing generator shaft sleeve.

[0024] The generator shaft sleeve structure has the following beneficial effects:

[0025] The generator shaft sleeve structure improves the wear resistance and service life: by adopting high-strength alloy steel or stainless steel material, and heat treating and coating wear-resistant coating on the surface of the shaft sleeve, the wear resistance and corrosion resistance of the shaft sleeve are significantly improved, and the service life of the shaft sleeve is prolonged.

[0026] The generator shaft sleeve structure optimizes the lubrication effect: the inner side wall of the shaft sleeve body is provided with a plurality of lubricating grooves, which can uniformly distribute lubricant, reduce the friction resistance between the shaft and the shaft sleeve, reduce energy consumption, and improve the operating efficiency of the generator.

[0027] The generator shaft sleeve structure enhances the operating stability: the outer surface of the shaft sleeve body is provided with a plurality of anti-skid lines, which can increase the friction between the shaft sleeve and the bearing, prevent the shaft sleeve from slipping or loosening during high-speed operation, and ensure the stability of the generator operation.

[0028] The generator shaft sleeve structure provided by the utility model improves the heat dissipation performance: the outer surface of the shaft sleeve body is provided with a plurality of heat dissipation grooves, heat generated by the shaft sleeve and the shaft can be quickly dissipated to the surrounding environment, the temperature of the shaft is prevented from being too high, and material performance is prevented from being reduced or damaged due to overheating.

[0029] The generator shaft sleeve structure provided by the utility model effectively prevents lubricant leakage: the both sides of the shaft sleeve body are provided with sealing grooves, sealing rubber rings are installed in the sealing grooves, lubricant leakage is effectively prevented, external dust and impurities are prevented from entering the inside of the shaft sleeve, and the cleaning and lubrication effects of the inside of the shaft sleeve are ensured.

[0030] The generator shaft sleeve structure provided by the utility model is convenient and firm to install: the both sides of the shaft sleeve body are provided with mounting flanges, the outer diameter of the mounting flanges is greater than that of the shaft sleeve body, the thickness is 1mm to 3mm, the shaft sleeve can be firmly installed on the generator shaft through bolts or other fixing modes, installation and dismounting are convenient, and the mounting flanges are not prone to loosening during operation.

[0031] The generator shaft sleeve structure provided by the utility model reduces the maintenance cost of the shaft sleeve: through optimization design and material selection, the shaft sleeve has excellent wear resistance, lubricity, heat dissipation and sealing performance, the maintenance frequency and maintenance cost of the generator can be significantly reduced, and the economic benefit of the generator is improved.

[0032] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope of the application.

Claims

1. A generator shaft sleeve structure, characterized in that, It includes a bushing body, two mounting flanges and two sealing rings. The bushing body has multiple lubrication grooves, multiple anti-slip patterns, two sealing grooves and multiple heat dissipation grooves. The two mounting flanges are fixedly connected to the bushing body and are located on both sides of the bushing body. The two sealing grooves are located on both sides of the bushing body. The two sealing rings are installed in the two sealing grooves. The multiple lubrication grooves are located on the inner sidewall of the bushing body. The multiple anti-slip patterns are located on the outer surface of the bushing body. The multiple heat dissipation grooves are located on the outer surface of the bushing body.

2. The generator shaft sleeve structure as described in claim 1, characterized in that, The anti-slip texture has a depth of 0.1mm to 0.5mm and a width of 0.5mm to 1.5mm.

3. The generator shaft sleeve structure as described in claim 1, characterized in that, The outer diameter of the mounting flange is larger than the outer diameter of the bushing body, and the thickness of the mounting flange is 1mm to 3mm.

4. The generator shaft sleeve structure as described in claim 1, characterized in that, The bushing body is made of high-strength alloy steel or stainless steel, and its surface is heat-treated to improve wear resistance.

5. The generator shaft sleeve structure as described in claim 1, characterized in that, The inner surface of the bushing body is coated with a wear-resistant coating, which is a polytetrafluoroethylene or ceramic coating.

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