Tile surface oil supply thrust bearing bush capable of rotating bidirectionally for use

Abstract

A main oil supply hole, an auxiliary oil supply hole A and an auxiliary oil supply hole B are formed in a tile block, the auxiliary oil supply hole A and the auxiliary oil supply hole B are connected with an oil supply groove A and an oil supply groove B respectively, and the oil supply groove A and the oil supply groove B are formed in the two sides of the tile block respectively. The invention can be applied to rotating machinery rotating at high speed, can rotate bidirectionally, and can bear large load at the same time. The two-way rotating impeller can rotate in two directions, can be used under different working conditions, is high in lubricating efficiency, and is particularly suitable for impeller machinery needing forward high-speed rotation and reverse rotation.

Description

Technical Field

[0001] The invention belongs to the field of power equipment, and in particular relates to a thrust bearing bush with oil supply on the bushing surface which can be used for bidirectional rotation. Background Art

[0002] As an important component of engineering machinery, bearings greatly reduce the friction between rotating parts and supporting parts. With the development of technology, the requirements for mechanical performance and stability in various industries have gradually increased, which has led to an increase in the requirements for bearings. Rolling bearings can adapt to most working conditions, and sliding bearings have the following obvious advantages compared to rolling bearings: 1. Long life and suitable for high speed 2. Able to withstand impact and vibration loads, large load-bearing capacity, suitable for heavy loads 3. High operating accuracy and balanced working 4. Simple structure and easy disassembly and assembly. These advantages make it have a good application prospect in the field of high-speed rotating machinery.

[0003] At the end of the 17th century, C. Wallow of the United Kingdom designed and manufactured ball bearings, and P. Worth obtained the patent for ball bearings. From the end of the 17th century to the middle of the 19th century, many scientists made considerable efforts in this field. It was not until 1883 that Friedrich Fischer proposed the idea of ​​using machines to produce steel balls of the same size and precise roundness, which completely laid the foundation for an independent bearing industry. At the beginning of the First World War, with the huge application potential of bearings in the military industry, the industry has developed rapidly. Today, the world's major bearing markets are occupied by a few companies in Japan, Germany, the United States and other countries, while my country's major bearing manufacturers only have a few bearing factories such as Harbin Bearing, Luoyang Bearing, and Wazhou Bearing that have some products that are recognized in the market.

[0004] Generally, sliding bearings that use oil supply from the bearing surface have a higher lubrication efficiency and require only 30-40% of the amount of lubricating oil of traditional bearings. However, the way the bearing surface is supplied with oil determines that the location of the oil supply groove must be upstream in the direction of rotation. Reverse rotation will result in insufficient oil utilization and lubrication, which can easily cause bearing burning. Summary of the invention

[0005] The purpose of the present invention is to provide a thrust bearing with oil supply on the bearing surface which can be used for bidirectional rotation, so as to solve the problem that the existing sliding bearing with oil supply on the bearing surface cannot realize direct reverse rotation, mainly by setting oil supply grooves at both ends of the bearing block to realize double-sided oil supply, and then realize reverse rotation.

[0006] A thrust bearing with oil supply on the bearing surface which can be used for bidirectional rotation, wherein a main oil supply hole, an auxiliary oil supply hole A and an auxiliary oil supply hole B are arranged in the bearing block, the auxiliary oil supply hole A and the auxiliary oil supply hole B are connected to the oil supply groove A and the oil supply groove B respectively, and the oil supply groove A and the oil supply groove B are respectively arranged on both sides of the bearing block.

[0007] Furthermore, the bearing bush adopts a segmented structure.

[0008] Furthermore, the oil supply pipeline inside the tile adopts an annular structure.

[0009] Furthermore, the tile is a fan-shaped tile.

[0010] Furthermore, a boss is provided at the rear of the tile.

[0011] The beneficial effects of the present invention are:

[0012] (1) The present invention can be applied to high-speed rotating machinery, can rotate in both directions, and can bear large loads at the same time.

[0013] (2) The structure of the present invention is safe and reliable, ensuring stable operation under harsh working conditions.

[0014] (3) The present invention requires little lubricating oil and has high lubrication efficiency.

[0015] (4) The present invention can rotate in both directions, meeting the requirements for use under different working conditions and conditions, and has a high lubrication efficiency. It is particularly suitable for use in impeller machinery that requires both forward high-speed rotation and reverse rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a thrust bearing bush for supplying oil to a bidirectionally rotating bush surface according to the present invention;

[0017] Figure 2 This is a working surface diagram of the tile of the present invention.

[0018] In the figure: 1. Auxiliary oil supply hole A, 2. Auxiliary oil supply hole B, 3. Main oil supply hole, 4. The position where the bearing shells are connected to each other, 5. Boss, 6. Oil supply groove A, 7. Oil supply groove B. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-Figure 2 As shown, a thrust bearing with oil supply on the bearing surface which can be used for bidirectional rotation is provided with a main oil supply hole 3, an auxiliary oil supply hole A1 and an auxiliary oil supply hole B2 in the bearing block. The auxiliary oil supply hole A1 and the auxiliary oil supply hole B2 are respectively connected to the oil supply groove A6 and the oil supply groove B7. The oil supply groove A6 and the oil supply groove B7 are respectively arranged on both sides of the bearing block to ensure that the lubricating oil can be supplied to the bearing block surface regardless of the forward rotation or the reverse rotation. The bearing block surface is coated with a wear-resistant coating.

[0021] The tile adopts a segmented tilting tile structure, which can be used in various working conditions and has stronger adaptability.

[0022] The oil is supplied by an annular cavity or an internal annular pipeline to ensure that the oil supply to each tile surface is uniform. The oil can also be supplied to the tile by forming a closed ring at the rear of the tile or on the support where the tile is installed.

[0023] A wear-resistant coating is added to the surface to ensure stable use.

[0024] like Figure 1 As shown, the tile is a fan-shaped tile, the oil supply position is on both sides of the tile, there is a boss at the rear of the tile, which plays a tilting role, the main oil supply hole and the holes for mutual oil supply between the tiles are all inside the tile, and the oil supply hole on the tile surface has a certain angle with the tile surface.

[0025] There may be no boss at the rear of the tile, and adding a protruding part at the rear of the tile can also make the tile tiltable.

[0026] The lubricating oil flow rate required by the present invention is smaller than that of the traditional sliding bearing. The present invention adjusts the size of the bearing working surface and the structural form of the oil supply circuit according to the actual use space and working conditions.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thrust bearing with oil supply on the bearing surface which can be used for bidirectional rotation, characterized in that: A main oil supply hole (3), an auxiliary oil supply hole A (1) and an auxiliary oil supply hole B (2) are provided in the tile block. The auxiliary oil supply hole A (1) and the auxiliary oil supply hole B (2) are connected to the oil supply groove A (6) and the oil supply groove B (7) respectively. The oil supply groove A (6) and the oil supply groove B (7) are respectively provided on both sides of the tile block.

2. A bidirectionally rotatable thrust bearing with oil supply on the bearing surface according to claim 1, characterized in that: The bearing bush adopts a segmented structure.

3. The thrust bearing bushing with oil supply and capable of bidirectional rotation according to claim 1, characterized in that: The oil supply pipeline inside the tile adopts an annular structure.

4. The thrust bearing bushing with oil supply and capable of bidirectional rotation according to claim 1, characterized in that: The tile is a fan-shaped tile.

5. The thrust bearing bushing with oil supply and capable of bidirectional rotation according to claim 1, characterized in that: A boss (5) is provided at the rear of the tile.

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