Manufacturing method of slip sheet base material of rotary air conditioner compressor

Abstract

The manufacturing method of the rotary type air conditioner compressor slip sheet base material comprises the following steps: (1) material selection: selecting proper steel; (2) hot rolling: performing hot rolling to form a flat strip-shaped profile; and (3) cold drawing is conducted, specifically, multiple times of cold drawing are conducted according to the shape of the slip sheet, during each cold drawing, the diameter of the cylinder, the width of the joint of the cylinder and the cuboid body and the length and height of the cuboid body are sequentially reduced, and after the last time of cold drawing, the diameter of the cylinder and the length and height of the cuboid body are slightly larger than the specification requirement of the slip sheet.

Description

Technical Field

[0001] The present invention relates to a rotary compressor component. Background Art

[0002] The main body of the rotary air-conditioning compressor is mainly composed of a rotating piston and a stator. The stator is a cylinder body, and the rotor is eccentrically placed in the stator. There is a vane between the rotor and the cylinder body. The cylinder volume on both sides of the vane changes due to the rotation of the rotor, thereby completing the continuous suction and compression of the medium. Vane compressors are widely used because of their simple structure, high efficiency, easy operation and maintenance, quiet operation, and low vibration.

[0003] As the core component of the compressor, the vane needs to be in close contact with the eccentric rolling piston of the compressor. The shape, size, surface finish, hardness and nitriding layer of the compressor vane need to be determined according to the requirements of the application. At present, the vane manufacturing generally cuts out the vane substrate first, and then the vane substrate undergoes various treatments to obtain a qualified vane. There is a mature vane manufacturing method for processing the vane substrate into a qualified vane. From the appropriate material to the formed vane, corresponding cutting, heat treatment, nitriding, fine grinding, etc. are performed to meet the requirements of the shape, precision, hardness and nitriding of the vane, such as the methods disclosed in Chinese patent documents CN1424510A, CN101629573A, CN102251167A, CN102251166A, CN103206379A, etc.

[0004] See also Figure 1 There is a type of existing rotary air-conditioning compressor vane, whose connecting end with the piston is a cylinder, and the vane body is a rectangular parallelepiped, with a depression formed between the rectangular parallelepiped and the cylinder. Therefore, its structure is complex and can only be processed by cutting method. Not only is the manufacturing complex and inefficient, but it is also difficult to meet the surface accuracy requirements of the cylinder and the vane body. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a method for manufacturing a rotary air-conditioning compressor vane substrate, so that the processing of the vane substrate is convenient and efficient.

[0006] The technical solution adopted by the present invention to solve the above problems is: The manufacturing method of the rotary air-conditioning compressor vane substrate is characterized by comprising the following steps: (1) Material selection: Choose the right steel; (2) Hot rolling: hot rolling into flat strips; (3) Cold drawing: The cold drawing is performed multiple times according to the shape of the slide. During each cold drawing, the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced successively. After the last cold drawing, the diameter of the cylinder and the length and height of the rectangular body are slightly larger than the specification requirements of the slide.

[0007] Better, (3) Cold drawing: After the last cold drawing, the diameter of the cylinder and the length of the rectangular body are slightly larger than the slide specification requirements, and the height is 0.1-0.3 mm more than the slide specification requirements.

[0008] Preferably, the cold drawing comprises four cold drawing steps. (3-1) First cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced; (3-2) Second cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced again; (3-3) The third cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are further reduced; (3-4) The fourth cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are slightly larger than the specifications of the slide.

[0009] Better, (4) Cold drawing: After the last cold drawing, the diameter of the cylinder and the length of the rectangular body are slightly larger than the slider specification requirements, and the height is 0.1-0.3 mm more than the slider specification requirements.

[0010] Preferably, the steel in the above step 1) is stainless steel, alloy steel or other metal suitable for cold drawing.

[0011] Since there have been many studies on heat treatment and processing of existing sliding vane substrates to obtain qualified sliding vanes, the methods are also disclosed in the background technology and other relevant documents. For example, the following method is adopted: heat treatment method is used to improve the hardness of the sliding vane, and nitriding treatment is used to meet the requirements of the sliding vane surface layer. Therefore, the order and conditions of the treatment can be changed accordingly according to the different materials of the sliding vane substrate. The sliding vane can also be treated according to the method disclosed in Chinese patent document CN103572174A, and the treated sliding vane substrate is subjected to coarse grinding and fine grinding of each surface. Since the focus of the present invention is on the preparation method of the sliding vane substrate, the post-treatment of the sliding vane substrate will not be described in detail here.

[0012] Compared with the prior art, since the method of the present invention can obtain qualified compressor vane substrates at one time, the manufacture of rotary air-conditioning compressor vane substrates is more convenient and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the rotary air-conditioning compressor vane substrate of the present invention.

[0014] Figure 2 It is a schematic diagram of the main process of manufacturing a rotary air-conditioning compressor vane substrate according to an embodiment of the present invention.

[0015] Figure 3 It is a schematic diagram of the raw material for preparing a rotary air-conditioning compressor vane substrate and the raw material after hot rolling according to an embodiment of the present invention.

[0016] Figure 4 It is a schematic diagram of a substrate during the first cold drawing and the second cold drawing of a rotary air-conditioning compressor vane substrate prepared in an embodiment of the present invention.

[0017] Figure 5 It is a schematic diagram of a substrate during the third cold drawing and the fourth cold drawing of a rotary air-conditioning compressor vane substrate in an embodiment of the present invention. Implementation

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1 As shown, the compressor vane substrate includes a cylinder and a cuboid, the diameter D of the cylinder, the width H at the junction of the cylinder and the cuboid body, the length L and the height W of the cuboid body, and the width of the cuboid body depends on the specifications and can be obtained by cutting the substrate in the width direction. Example 1

[0020] like Figure 2-5 As shown, the manufacturing method of the rotary air-conditioning compressor vane substrate comprises the following steps: (1) Material selection: Choose stainless steel; (2) Hot rolling: hot rolling the stainless steel into flat strips with a length of 28 mm and a height of 5.4 mm; (3-1) First cold drawing: The diameter of the cylinder is 4.9 mm, the width of the junction between the cylinder and the rectangular body is 4.1 mm, the length of the cylinder and the rectangular body is 27.75 mm, and the height of the rectangular body is 5.35 mm; (3-2) Second cold drawing: the diameter of the cylinder is 4.5 mm, the width of the junction between the cylinder and the rectangular body is 3.5 mm, the length of the cylinder and the rectangular body is 27.25 mm, and the height of the rectangular body is 4.85 mm; (3-3) The third cold drawing: the diameter of the cylinder is 3.6 mm, the width of the junction between the cylinder and the rectangular body is 2.6 mm, the length of the cylinder and the rectangular body is 26.5 mm, and the height of the rectangular body is 4.05 mm; (3-4) The fourth cold drawing: the diameter of the cylinder is 3.1 mm, the width of the junction between the cylinder and the rectangular body is 1.9 mm, the length of the cylinder and the rectangular body is 26 mm, and the height of the rectangular body is 3.4 mm.

[0021] The width of the rectangular main body of the rotary air-conditioning compressor vane substrate is determined according to the specifications and can be obtained by cutting the substrate in the width direction. Example 2

[0022] refer to Figure 2-5 As shown, the manufacturing method of the rotary air-conditioning compressor vane substrate comprises the following steps: (1) Material selection: select alloy steel; (2) Hot rolling: hot rolling the alloy steel into flat strips with a length of 28 mm and a height of 5.5 mm; (3-1) First cold drawing: the diameter of the cylinder is 5.0 mm, the width of the junction between the cylinder and the rectangular body is 4.2 mm, the length of the cylinder and the rectangular body is 27.85 mm, and the height of the rectangular body is 5.45 mm; (3-2) Second cold drawing: the diameter of the cylinder is 4.6 mm, the width of the junction between the cylinder and the rectangular body is 3.6 mm, the length of the cylinder and the rectangular body is 27.35 mm, and the height of the rectangular body is 4.95 mm; (3-3) The third cold drawing: the diameter of the cylinder is 3.7 mm, the width of the junction between the cylinder and the rectangular body is 2.7 mm, the length of the cylinder and the rectangular body is 26.6 mm, and the height of the rectangular body is 4.15 mm; (3-4) The fourth cold drawing: The diameter of the cylinder is 3.1 mm, the width of the junction between the cylinder and the rectangular body is 1.9 mm, the length of the cylinder and the rectangular body is 26 mm, which is close to the specification requirements of the slide, and the height of the rectangular body is 3.4 mm.

[0023] The width of the rectangular main body of the rotary air-conditioning compressor vane substrate is determined according to the specifications and can be obtained by cutting the substrate in the width direction.

[0024] The key point of the present invention is how to obtain a slider substrate by cold drawing. In the above process, hot rolling and other processes are common processes and will not be described in detail here. Commonly used processes in the process, such as cleaning, will not be described in detail. After the slider substrate is obtained at one time, there are various methods for manufacturing the slider substrate into a finished slider. For example, heat treatment is used to increase the hardness of the slider, nitriding is used to meet the requirements of the slider surface layer, and rough grinding and fine grinding of each surface of the treated slider substrate are performed. These are well known to ordinary technicians in this field and will not be described in detail here.

Claims

1. A method for manufacturing a rotary air-conditioning compressor vane substrate, characterized in that: The following steps are involved: (1) Material selection: Choose the right steel; (2) Hot rolling: hot rolling into flat strips; (3) Cold drawing: The cold drawing is performed multiple times according to the shape of the slide. During each cold drawing, the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced successively. After the last cold drawing, the diameter of the cylinder and the length and height of the rectangular body are slightly larger than the specification requirements of the slide.

2. The method for manufacturing an air-conditioning compressor vane substrate according to claim 1, characterized in that: (3) Cold drawing: After the last cold drawing, the diameter of the cylinder and the length of the cuboid body are slightly larger than the requirements of the slider specifications, and the height is 0.1-0.3 mm more than the requirements of the slider specifications.

3. The method for manufacturing an air-conditioning compressor vane substrate according to claim 1, characterized in that: The cold drawing comprises four cold drawing steps. (3-1) First cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced; (3-2) Second cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are reduced again; (3-3) The third cold drawing: the diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are further reduced; (3-4) The fourth cold drawing: The diameter of the cylinder, the width of the junction between the cylinder and the rectangular body, and the length and height of the rectangular body are slightly larger than the specifications of the slide.

4. The method for manufacturing an air-conditioning compressor vane substrate according to claim 3, characterized in that: (4) Cold drawing: After the last cold drawing, the diameter of the cylinder and the length of the rectangular body are slightly larger than the requirements of the slider specifications, and the height is 0.1-0.3 mm more than the requirements of the slider specifications.

5. The method for manufacturing an air-conditioning compressor vane substrate according to claim 3, characterized in that: The first cold drawing of (3-1): the diameter of the cylinder is 4.8-5.0 mm, the width of the junction of the cylinder and the rectangular body is 4.0-4.2 mm, the length of the cylinder and the rectangular body is 27.65-27.85 mm, and the height of the rectangular body is 5.25-5.45 mm; (3-2) Second cold drawing: the diameter of the cylinder is 4.4-4.6 mm, the width of the junction between the cylinder and the rectangular body is 3.4-3.6 mm, the length of the cylinder and the rectangular body is 27.15-27.35 mm, and the height of the rectangular body is 4.75-4.95 mm; (3-3) The third cold drawing: the diameter of the cylinder is 3.5-3.7 mm, the width of the junction between the cylinder and the cuboid body is 2.5-2.7 mm, the length of the cylinder and the cuboid body is 26.4-26.6 mm, and the height of the cuboid body is 3.95-4.15 mm; (3-4) The fourth cold drawing: the diameter of the cylinder is 3.0-3.2 mm, the width of the junction between the cylinder and the rectangular body is 1.8-20 mm, the length of the cylinder and the rectangular body is 25.9-26.1 mm, and the height of the rectangular body is 3.3-3.5 mm.

6. The method for manufacturing an air-conditioning compressor vane substrate according to claim 5, characterized in that: The first cold drawing of (3-1): the diameter of the cylinder is 4.9 mm, the length of the cylinder and the rectangular body is 27.75 mm, and the height of the rectangular body is 5.35 mm; (3-2) Second cold drawing: the diameter of the cylinder is 4.5 mm, the width of the junction between the cylinder and the rectangular body is 3.5 mm, the length of the cylinder and the rectangular body is 27.25 mm, and the height of the rectangular body is 4.85 mm; (3-3) The third cold drawing: the diameter of the cylinder is 3.6 mm, the width of the junction between the cylinder and the rectangular body is 2.6 mm, the length of the cylinder and the rectangular body is 26.5 mm, and the height of the rectangular body is 4.05 mm; (3-4) The fourth cold drawing: the diameter of the cylinder is 3.1 mm, the width of the junction between the cylinder and the rectangular body is 1.9 mm, the length of the cylinder and the rectangular body is 26 mm, and the height of the rectangular body is 3.4 mm.

7. The method for manufacturing an air-conditioning compressor vane substrate according to claim 1, characterized in that: The steel material in step 1) is stainless steel, alloy steel or other metal suitable for cold drawing.

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