CN2858999Y

CN2858999Y - Compressor piston

Info

Publication number: CN2858999Y
Application number: CN 200520116703
Authority: CN
Inventors: 胡国定
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-22
Filing date: 2005-11-22
Publication date: 2007-01-17
Anticipated expiration: 2015-11-22

Abstract

The utility model discloses a compressor piston. It is characterized in that an oil groove structure is disposed at the cylinder surface of both ends of said piston, which ensures good lubricating conditions for the piston during its moving process inside the piston cylinder, solves the problem of piston damage and stifling caused by local oil deficiency, and prolongs its service life.

Description

Compressor piston

Technical field

The utility model relates to a kind of compressor piston.

Background technique

Compressor piston is applied to the bidirectional piston Wobble plate type refrigerant compressor, its motion mode is to drive swash plate by main shaft to do the swing rotation, promote the ball pad and then promote piston in cylinder body, to do straight reciprocating motion, wherein the quality of fit of piston and cylinder body is had relatively high expectations, the gap is very little, so the operating conditions of sufficient lubrication will be arranged, the piston two ends of prior art are smooth cylindrical body, the compressor high speed operation is gripped initiating failure because of poor lubrication is pulled piston and the local oil starvation of cylinder body often, causes reduce working life.

Summary of the invention

Goal of the invention of the present utility model all provides a kind of high lubricating effect, the compressor piston that increases the service life in the defective that overcomes prior art.

Goal of the invention of the present utility model realizes by following technical proposal:

A kind of compressor piston is characterized in that described piston two terminal circle cylinder is provided with oil groove.

Described oil groove is the 1-3 bar.

Described oil groove sectional shape is recessed circle or recessed triangle or recessed square or recessed trapezoidal.

Compared with prior art, the utility model is set up tank structure on piston two terminal circle cylinder, makes pistons work under better lubricating condition, has solved in the pistons work process and has pulled the problem of being gripped owing to oil starvation is lubricated, thereby prolonged working life.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is Fig. 1 plan view.

Fig. 3 is the A-A sectional view of Fig. 1.

Fig. 4 is the mounting structure schematic representation of the utility model in compressor.

Embodiment

To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.

As Fig. 1～shown in Figure 4, the utility model compressor piston, this piston 2 cooperates the oil groove 3 that has two recessed circles on the cylndrical surface 1 of slippage with cylinder body at its two ends, make the lubricant oil that is filled in the oil groove satisfy the lubricated needs of piston 2 running in cylinder body, avoided pulling the fault of being gripped, prolonged working life because of local oil starvation produces.

Claims

1, a kind of compressor piston is characterized in that described piston (2) two terminal circle cylinder (1) is provided with oil groove (3).

2, compressor piston according to claim 1 is characterized in that described oil groove (3) is the 1-3 bar.

3, compressor piston according to claim 1 and 2 is characterized in that described oil groove (3) sectional shape is recessed circle or recessed triangle or recessed square or recessed trapezoidal.