Spring cupport structure for reciprocating compressor

Abstract

A spring support (100) structure for reciprocating compressor having a frame unit (40) elastically supported inside a closed container (10); a reciprocating motor (20) fixed at the frame unit (40); a compression unit (30) having a piston (31) combined to an armature (22) of the reciprocating motor (20) and a cylinder (32) into which the piston (31) is slidably inserted to be fixed at the frame unit (40); and a spring unit (100) supporting a spring support (110) provided at the armature (22) or the piston (31) and guiding a reciprocal movement of the piston (31), wherein the spring unit (100) includes a plurality of front springs (51) supporting one side of the spring support (110) in parallel and a plurality of the rear springs (52) supporting the other side of the spring support. Since the front springs and the rear springs (52) elastically supporting both the armature (22) and the piston (31) are arranged in parallel to overlap with each other for a certain range, the horizontal length of the spring is reduced, resulting in that the compressor can be compact.

Description

technical field [0001] The invention relates to a spring supporting structure of a reciprocating compressor, in particular to a spring supporting structure of a reciprocating compressor used for elastically supporting the rotor of a reciprocating motor. Background technique [0002] Generally, a reciprocating compressor sucks in, compresses and discharges gas while a piston reciprocates within a cylinder. [0003] Fig. 1 is a vertical sectional view of a prior art reciprocating compressor [0004] As shown in Figure 1, a common reciprocating compressor includes a closed container 10, and in the container 10, the suction pipe (SP) and the discharge pipe (DP) are connected to each other; a reciprocating motor 20 fixed in the closed container 10 a compression unit 30 installed in the airtight container 10 and sucking, compressing and discharging gas; a frame unit 40 supporting the reciprocating motor 20 and the compression unit 30; and a spring unit 50 for elastically supporti...

AI Technical Summary

Problems solved by technology

That is: if figure 2 As shown, the front spring and the rear spring are arranged in a straight line with the rotor in between, the horizontal length (L) of the spring should be at least equal to the length of the front spring (L1) and the length of the rear spring (L2) And, this creates a problem that the length of the horizontal direction of the compressor is extended

[0013] In addition, both the front spring 51 and the rear spring 52 are compression coil springs, which have the characteristic of being deflected in the radial direction due to shaking in the winding direction under compression, so that when the rotor 22 and the piston 31 reciprocate, Due to the nature of the front springs 51 and rear springs 52 that support them, they vibrate in the radial direction, resulting in a decrease in the overall reliability of the compressor

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