Compressor swash plate and piston mechanism

Abstract

The invention discloses a compressor swash plate and piston mechanism. The mechanism comprises a swash plate, pistons, beads and bead rolling bases, wherein the pistons are uniformly arranged on a swash plate main plate, piston bodies of the pistons are of a cylinder structure, grooves matched with the swash plate main plate are formed in the middles of the piston bodies, piston columns are arranged at the two ends of each groove, and a first ball socket is installed on the side, towards the swash plate, of each piston column. The beads are installed in the first ball sockets, the pistons andthe swash plate main plate are connected through the bead rolling bases, a second ball socket is formed in one side of each bead rolling base, and the beads roll in the first and second ball sockets.The connecting surfaces of the swash plate main plate and the bead rolling bases are evenly coated with friction-reduction coating layers, and the bead rolling bases slide on the swash plate main plate. The stress direction of the pistons is consistent with the central axis of the pistons, so that friction force between the outer side surfaces of the pistons and a cylinder hole is kept symmetricaland uniform, the phenomenon of partial single-side wear is avoided, the service life of a whole automobile air conditioner compressor is effectively prolonged, and the economic loss is reduced.

Description

technical field [0001] The invention belongs to the field of compressor manufacturing, in particular to a compressor swash plate and a piston mechanism thereof. Background technique [0002] At present, as users continue to improve the performance of automobile air conditioners, automobile manufacturers are also constantly demanding that the performance of automobile air conditioner compressors be continuously improved, which leads to an increase in costs. If it is necessary to improve the automotive air-conditioning compressor without greatly increasing the cost, increasing the swash plate speed of the automotive air-conditioning compressor is the first choice to improve performance. From the working principle of the automotive air-conditioning In the compressor, the piston is a part that directly participates in doing work and plays a pivotal role. Improving the performance of the automotive air-conditioning compressor requires a higher operating frequency of the piston, w...

AI Technical Summary

Problems solved by technology

However, the main problems in the existing piston structure design are: the contact area between the hemispherical steel ball and the ball socket is small, the lubricity is poor, the friction force is large, the force direction of the piston is inconsistent with the piston axis, and it is easy to get stuck during reciprocating motion. On the one hand, the abnormal wear on the outer surface of the piston is serious, which greatly shortens its service life. On the other hand, the force on the piston is asymmetrical, which leads to the failure of the entire compressor due to one-sided wear of some structures, resulting in huge economic losses.

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