Reciprocating compressor and assembly method thereof

Abstract

The invention discloses a reciprocating compressor and an assembly method thereof. The reciprocating compressor includes a crankcase, a crankshaft, a connecting rod assembly, a bearing assembly, a fastening part and a rotor, wherein the crankcase is provided with a cylinder hole and a mounting hole, wherein the thickness of the mounting hole penetrate through the thickness of the cylinder hole, anopening of the cylinder hole faces the mounting hole, and the periphery of the mounting hole is provided with a through hole; the crankshaft is rotatably arranged in the mounting hole, and the crankshaft is provided with an eccentric part; the connecting rod assembly includes a piston and a connecting rod, the piston is arranged in the cylinder hole, one end of the connecting rod is rotatably connected with the piston, and the other end of the connecting rod is arranged on the eccentric part in a sleeving mode; the bearing assembly is arranged on the crankshaft in the sleeving mode, the bearing assembly comprises a bearing seat, and the bearing seat is provided with a threaded hole corresponding to the through hole; the fastening part is arranged in the through hole in a penetrating modeand connected with the threaded hole; and the rotor is arranged on the crankshaft in the sleeving mode to drive the crankshaft to rotate. According to the reciprocating compressor, the miniaturizationof the reciprocating compressor can be realized, and meanwhile, the cost can be reduced.

Description

Technical field [0001] The invention relates to the technical field of compressors, in particular to a reciprocating compressor and an assembly method thereof. Background technique [0002] At present, refrigerators have entered daily life as household appliances, and refrigerator compressors, as the core components of refrigerators, play a vital role in the normal operation of refrigerators. In order to reduce costs, the demand for miniaturization of refrigerator compressors has increased. In the existing structure of refrigerator compressors, a cast-type integrated crankcase is often used, which includes a cylinder hole and a shaft hole. In order to facilitate the installation of the connecting rod at the end of the cylinder hole, a Install the opening, but the installation opening will reduce the length of the cylinder bore and shorten the sealing mating length of the piston and the cylinder bore. In order to ensure the sealing mating length of the piston and the cylinder bore...

AI Technical Summary

Problems solved by technology

In order to reduce costs, the demand for miniaturization of refrigerator compressors is increasing. In the existing structure of refrigerator compressors, cast-type one-piece crankcases are mostly used, which include cylinder holes and shaft holes. In order to facilitate the installation of connecting rods at the end of the cylinder holes, a Install the opening, but the installation opening will reduce the length of the cylinder bore, and at the same time shorten the length of the sealing fit between the piston and the cylinder bore. In order to ensure the length of the seal fit between the piston and the cylinder bore, the distance between the cylinder surface must be lengthened to increase the length of the cylinder bore, thus resulting in a longer movement. Enlarging the shell and increasing the cost

Images