Connection rod assembly for piston compressor

Abstract

The invention discloses a connecting rod assembly for a piston compressor. The connecting rod assembly comprises a connecting rod small end, a small end liner ring and a connecting rod large end device; a first connecting rod is fixedly connected to the connecting rod small end, a second connecting rod is fixedly connected to the connecting rod large end device, a sliding hole is formed in the extending direction of the second connecting rod, an inner hexagonal prism hole is formed in the sliding hole, a hexagonal prism is arranged at the end, away from the connecting rod small end, of the first connecting rod, a limiting sliding column is fixedly connected to the end, away from the connecting rod small end, of the hexagonal prism, and a spring is arranged between the connecting rod smallend and the second connecting rod. In a natural state, under the effect of elastic force of the spring, the first connecting rod extends out relative to the second connecting rod to the limiting sliding column to be in close fit with the table face of the inner hexagonal prism hole. The problem that pistons on the connecting rods cannot move to the normal stroke position due to liquid substances generated in a cylinder body when the compressor operates, so that the connecting rods are broken and damaged when the connecting rods continue to move is solved, the maintenance frequency of the compressor is greatly reduced, the economic loss is reduced, use is convenient, and practicability is good.

Description

technical field [0001] The invention relates to the technical field of piston compressors, in particular to a connecting rod assembly for a piston compressor. Background technique [0002] In the piston machine, the connecting rod is an important part. The small end of the connecting rod is connected to the piston pin, and the large end of the connecting rod is connected to the crankshaft, which converts the rotational motion of the crankshaft into the reciprocating motion of the piston to complete the working cycle of the compressor. The connection between the small head of the rod and the rod body bears a large force and is prone to breakage, especially in semi-hermetic piston compressors for refrigeration. Due to the incomplete evaporation of fluorine in the process of suction and exhaust of the compressor, the The formation of liquid fluorine will cause the material in the cylinder to not be discharged in time when the compressor is exhausted. When the piston continues t...

AI Technical Summary

Problems solved by technology

[0002] In the piston machine, the connecting rod is an important part. The small end of the connecting rod is connected to the piston pin, and the large end of the connecting rod is connected to the crankshaft, which converts the rotational motion of the crankshaft into the reciprocating motion of the piston to complete the working cycle of the compressor. The connection between the small head of the rod and the rod body bears a large force and is prone to breakage, especially in semi-hermetic piston compressors for refrigeration. Due to the incomplete evaporation of fluorine in the process of suction and exhaust of the compressor, the The formation of liquid fluorine will cause the material in the cylinder to not be discharged in time when the compressor is exhausted. When the piston continues to move in the original way, the small end of the connecting rod and the shaft will break, and the machine will be damaged.

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