Manufacturing method of large-scale reciprocating type refrigeration compressor

A technology for refrigeration compressors and compressor cylinders, which is applied in the field of manufacturing large-scale reciprocating refrigeration compressor cylinders, and can solve problems such as wear and tear

Inactive Publication Date: 2012-08-29
李永达
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main reason for the existing reciprocating refrigeration compressors to be scrapped for a long time is that the working principle of most refrigeration compressors is that the crankshaft in the compressor is driven by an electric motor, the crankshaft is fixed with a piston, and the piston moves on the compressor cylinder Reciprocating mechanical movement, but the contact surface between the compressor housing and the piston is different from the cylinder liner of the internal combustion engine, so long-term use makes the contact surface between the compressor cylinder and the piston seriously worn, because the compressor cylinder is An integral casti

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  • Manufacturing method of large-scale reciprocating type refrigeration compressor
  • Manufacturing method of large-scale reciprocating type refrigeration compressor
  • Manufacturing method of large-scale reciprocating type refrigeration compressor

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] Select the appropriate cast iron raw material, cast according to the compressor cylinder mold to manufacture the casting body, the hardness is HB225, and use the plane milling machine to carry out plane rough milling on the bottom surface, the cylinder joint surface (1) and the fixed surface (2), Then through the boring machine, carry out synchronous coaxial diameter cylinder boring processing for the main shaft hole (5) of the cylinder body, the motor cavity hole and the end cover hole, and make the surface of the cylinder body cavity and the outer edge contact surface smooth. For rough milling by a milling machine The processed cylinder joint surface (1), fixed surface (2), spindle hole external joint surface (7), and motor cavity external joint surface (8) are finely milled with a milling machine to improve the smoothness of the above surfaces , and...

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Abstract

The invention discloses a manufacturing method of a large-scale reciprocating type refrigeration compressor, which mainly comprises the following steps of: (1) sorting: selecting appropriate casting iron; (2) casting; (3) milling and rough machining an upper face and a lower face; (4) rough machining three holes and the faces; (5) milling and fine machining the upper face and the lower face; (6) fine machining the three holes and the faces; (7) boring an air cylinder hole; (8) drilling and tapping a cylinder body face, an end cover face and a motor cavity face; (9) honing the surface of the air cylinder hole; (10) plasma quenching the surface of the air cylinder hole; and (11) honing the surface of the air cylinder hole again. The manufacturing method of the large-scale reciprocating type refrigeration compressor has the advantages that the accuracy of a product can be effectively improved; and the hardness of the surface of the air cylinder hole of the product can be improved in a double mode.

Description

technical field [0001] The invention relates to a method for manufacturing a cylinder body of a large reciprocating refrigeration compressor. Background technique [0002] Compressors are classified according to different structural forms as follows: reciprocating (piston) compressors, rotary (rotary) compressors (turbine, water ring, turbine) compressors, axial compressors, jet compressors Machine and screw compressors and other types, of which the most widely used is the reciprocating (piston) compressor. The reciprocating refrigeration compressor is a piston-type compressor in the mechanical part of the refrigeration cycle. Its working principle is as follows: when the crankshaft is driven by the motor to rotate, the piston is reciprocated in the cylinder through the connecting rod. The outer ring of the top of the cylinder is equipped with an annular suction valve plate, and the center of the top is equipped with an annular exhaust valve plate, and valve springs are arr...

Claims

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Application Information

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IPC IPC(8): B23P15/00
Inventor 李永达
Owner 李永达
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