CN207554584U - A kind of bearing shell with oil groove - Google Patents

Abstract

The utility model discloses a bearing bush with an oil groove, which belongs to the technical field of motor parts and comprises two semi-cylindrical bearing bush bodies, an oil injection hole is arranged in the middle of the side wall of the bearing bush body, and a wear-resistant inner lining layer is fixed on the inner wall of the bearing bush body , characterized in that: the wear-resistant inner liner is formed with an axial vertical through groove and a radial annular through groove, the axial vertical through groove and the radial annular through groove are connected, and one end of the oil injection hole It communicates with the radial annular through groove, and the outer wall of the bearing pad body is provided with a damping sleeve, and the gap between the two wear-resistant inner lining layers on the two bearing pad bodies forms a vertical oil groove; the bearing pad body The body includes a memory alloy layer and a babbitt alloy layer, and fine cracks are arranged on the inner surface of the memory alloy layer. The utility model provides a bearing bush with an oil groove, which has a simple structure, is safe and practical, can better store oil, dissipate heat and lubricate, has a small friction coefficient and has a long service life.

Description

A bearing bush with an oil groove

technical field

The utility model discloses a bearing bush with an oil groove, which belongs to the technical field of motor components.

Background technique

The bearing bush is an important part of the sliding bearing. There is an oil injection hole on the wall and an annular oil groove inside. The annular oil groove acts as a lubricant. When the shaft runs at high speed in the bearing bush, it will generate a lot of heat, and the high temperature caused by direct friction will burn out the bearing bush. It may also be caused by factors such as excessive load, high temperature, impurities in lubricating oil or abnormal viscosity, etc., and the sliding bearing will be damaged after burning the tiles. The oil storage capacity of the annular oil groove is small, so that the lubrication effect is not good, resulting in frequent damage to the bearing pad, and the service life of the bearing pad is short.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a simple structure, safe and practical, better oil storage, heat dissipation and lubrication, small friction coefficient and long service life bearing bush with oil groove.

In order to achieve the above object, the utility model provides the following technical solutions to achieve:

A bearing pad with an oil groove, comprising two semi-cylindrical bearing pad bodies, an oil injection hole is provided in the middle of the side wall of the bearing pad body, a wear-resistant inner lining layer is fixed on the inner wall of the bearing pad body, and the wear-resistant inner lining layer is formed There are axial vertical through grooves and radial annular through grooves, the axial vertical through grooves communicate with the radial annular through grooves, one end of the oil injection hole communicates with the radial annular through grooves, and the outer wall of the bearing pad body There is a damping sleeve on the top, and the gap between the two wear-resistant lining layers on the two bearing pad bodies forms a vertical oil groove; the bearing pad body includes a memory alloy layer and a Babbitt alloy layer, and the memory The inner surface of the alloy layer is provided with fine cracks, the babbitt alloy layer is located inside the memory alloy layer and is welded to the memory alloy layer through the fine cracks, and there is a gap between the memory alloy layer and the babbitt alloy layer. Flux layer; the wear-resistant lining layer includes a carbon steel plate base layer, the upper part of the carbon steel plate base layer is provided with a galvanized layer, the upper part of the galvanized layer is provided with a chemical conversion layer, and the upper part of the chemical conversion layer is provided with wear-resistant layer, the wear-resistant layer is an aluminum oxide wear-resistant layer, the upper part of the wear-resistant layer is provided with a graphite coating, the upper part of the graphite coating is provided with a molybdenum disulfide layer, and the upper part of the molybdenum disulfide layer is Features nanomaterial self-cleaning coating.

Preferably, the damping sleeve is an iron-based alloy damping sleeve.

Preferably, the flux layer penetrates into the memory alloy layer and the babbitt alloy layer.

Preferably, epoxy resin glue is arranged between the carbon steel plate base layer and the galvanized layer.

The beneficial effects of this utility model device are: 1. The axial vertical through groove and the radial annular through groove can better store oil and lubricate, and at the same time, when the oil flows, the heat on the bearing body can be taken out for heat dissipation ; 2. As the base layer of carbon steel plate base, it can not only improve the overall strength and deformation resistance, but also not increase the weight. At the same time, it has good corrosion resistance and antirust performance. Surface wear resistance, nano-material self-cleaning coating endows the wear-resistant inner lining with self-cleaning and dust-proof performance, and the composite anti-friction layer composed of graphite coating and molybdenum disulfide layer has a small friction coefficient, which is beneficial to reduce friction and wear, making the wear-resistant The lining layer of the grinding mill has a small friction coefficient, high thermal stability, non-stick and self-lubricating characteristics, and reduces the phenomenon of burning pads; 3. Since the bearing body is composed of a memory alloy layer and a Babbitt alloy layer, the memory alloy has high absorption High-frequency and low-frequency vibration, reduce the noise of the shaft running, so that the bearing body has a vibration-absorbing function and reduce noise; 4. The surface of the memory alloy layer is diffused with fine cracks, which improves the actual welding contact area between the memory alloy layer and the Babbitt alloy layer and reduces the noise. Flux is added, thereby increasing the welding firmness between the memory alloy layer and the babbitt alloy layer, and improving the overall stability.

Description of drawings

Fig. 1 is the structural representation of the bearing pad with oil groove of the utility model;

Fig. 2 is the sectional view of the bearing pad with oil groove of the utility model;

Fig. 3 is the enlarged schematic diagram of place A in Fig. 2;

Fig. 4 is a structural schematic diagram of the wear-resistant lining layer.

Reference signs: 1. Bearing shell body; 2. Wear-resistant inner lining; 3. Axial vertical through groove; 4. Vertical oil groove; 5. Radial annular through groove; 6. Oil injection hole; 7. Damping sleeve ; 8. Memory alloy layer; 9. Babbitt alloy layer; 10. Fine cracks; 11. Flux layer; 12. Carbon steel base layer; 13. Galvanized layer; 14. Chemical conversion layer; 15. Wear-resistant layer ; 16. Graphite coating; 17. Molybdenum disulfide layer; 18. Nanomaterial self-cleaning coating.

Detailed ways

A bearing pad with an oil groove of the utility model will be further described below in conjunction with the accompanying drawings.

The bearing pad with oil groove shown in Figure 1-4 includes two semi-cylindrical bearing pad bodies 1, the middle part of the side wall of the bearing pad body 1 is provided with an oil injection hole 6, and the inner wall of the bearing pad body 1 is fixed with a wear-resistant lining layer 2, which is wear-resistant The inner liner 2 is formed with an axial vertical through groove 3 and a radial annular through groove 5, the axial vertical through groove 3 communicates with the radial annular through groove 5, and one end of the oil injection hole 6 connects with the radial annular through groove 5 In communication, the outer wall of the bearing body 1 is provided with a damping sleeve 7, and the gap between the two wear-resistant inner linings 2 on the two bearing bodies 1 forms a vertical oil groove 4; the bearing body 1 includes a memory alloy layer 8 and a bar The inner surface of the memory alloy layer 9 is provided with fine cracks 10, and the babbitt alloy layer 9 is located on the inside of the memory alloy layer 8 and is welded to the memory alloy layer 8 through the fine cracks 10. The memory alloy layer 8 A flux layer 11 is provided between the Babbitt alloy layer 9; the wear-resistant inner lining layer 2 includes a carbon steel plate base layer 12, and a galvanized layer 13 is provided on the upper part of the carbon steel plate base layer 12, and a chemical conversion layer is provided on the upper part of the galvanized layer 13. layer 14, the upper part of the chemical conversion layer 14 is provided with a wear-resistant layer 15, the wear-resistant layer 15 is an aluminum oxide wear-resistant layer, the upper part of the wear-resistant layer 15 is provided with a graphite coating 16, and the upper part of the graphite coating 16 is provided with molybdenum disulfide Layer 17, the upper part of the molybdenum disulfide layer 17 is provided with a nanomaterial self-cleaning coating 18 . Preferably, the damping sleeve 7 is an iron-based alloy damping sleeve. Preferably, the flux layer 11 penetrates into the memory alloy layer 8 and the babbitt alloy layer 9 . Preferably, epoxy resin glue is provided between the carbon steel plate base layer 12 and the galvanized layer 13 . .

The beneficial effect of this utility model device is,

The axial vertical through groove 3 and the radial annular through groove 5 can store oil and lubricate better, and at the same time, when the oil fluid flows, the heat on the bearing body 1 can be taken out for heat dissipation.

The carbon steel plate base layer 12 is used as the base layer, which can improve the overall strength and deformation resistance without increasing the weight. At the same time, it has good corrosion resistance and antirust performance. The composite wear-resistant layer 15 on the carbon steel plate base layer 12 can effectively improve Surface wear resistance, nano-material self-cleaning coating 18 endows the wear-resistant lining layer 2 with self-cleaning and dustproof performance, and the composite anti-friction layer composed of graphite coating 16 and molybdenum disulfide layer 17 has a small friction coefficient, which is conducive to reducing friction wear, so that the wear-resistant lining layer 2 has a small friction coefficient, high thermal stability, non-stick and self-lubricating properties, and reduces the phenomenon of tile burning.

Since the bearing body 1 is composed of memory alloy layer 8 and babbitt alloy layer 9, memory alloy has the effect of absorbing high-frequency and low-frequency vibrations and reducing shaft running noise, so that bearing body 1 has the function of absorbing vibration and reducing noise.

The surface of the memory alloy layer 8 is diffused with fine grain cracks 10, which increases the actual welding contact area between the memory alloy layer 8 and the Babbitt alloy layer 9 and adds flux, thereby increasing the distance between the memory alloy layer 8 and the Babbitt alloy layer 9. The problem of welding firmness between them improves the overall stability.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (4)

1. A bearing pad with an oil groove, comprising two semi-cylindrical bearing pad bodies, an oil injection hole is provided in the middle of the side wall of the bearing pad body, and a wear-resistant inner lining layer is fixed on the inner wall of the bearing pad body, characterized in that: the bearing pad body The inner liner of the mill is formed with an axial vertical through groove and a radial annular through groove, the axial vertical through groove communicates with the radial annular through groove, one end of the oil injection hole communicates with the radial annular through groove, The outer wall of the bearing pad body is provided with a damping sleeve, and the gap between the two wear-resistant inner lining layers on the two bearing pad bodies forms a vertical oil groove; the bearing pad body includes a memory alloy layer and a Babbitt Alloy layer, the inner surface of the memory alloy layer is provided with fine cracks, the babbitt alloy layer is located inside the memory alloy layer and is welded on the memory alloy layer through the fine cracks, the memory alloy layer and babbitt A flux layer is provided between the alloy layers; the wear-resistant inner lining layer includes a carbon steel plate base layer, a galvanized layer is provided on the upper part of the carbon steel plate base layer, and a chemical conversion layer is provided on the upper part of the galvanized layer. The upper part of the chemical conversion layer is provided with a wear-resistant layer, the wear-resistant layer is an aluminum oxide wear-resistant layer, the upper part of the wear-resistant layer is provided with a graphite coating, and the upper part of the graphite coating is provided with a molybdenum disulfide layer. The upper part of the molybdenum disulfide layer is provided with a nano-material self-cleaning coating. 2. A bearing bush with an oil groove according to claim 1, wherein the damping sleeve is an iron-based alloy damping sleeve. 3. A bearing bush with an oil groove according to claim 1, wherein the flux layer penetrates into the memory alloy layer and the babbitt alloy layer. 4. A bearing bush with an oil groove according to claim 1, characterized in that: epoxy resin glue is arranged between the carbon steel plate base layer and the galvanized layer.