JPH10299653A - Compressor vibration reducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a support spring from departing from a snubber, and also absorb and relieve vibration. SOLUTION: A compressor is structured so that a support spring 33 is installed between a cylinder block 15 and a snubber 31 so that a vibration generated when a rotary shaft is rotated according to the driving of a stator and a rotor can be absorbed and relieved. In this case, screw surfaces 31c connected in the spiral direction to each other so that the support spring 33 and snubber 31 are not separated from each other even if vibration is generated in either of the right and left side diagonal directions in the operation of the compressor, are formed on the peripheral surface at a specified end of the snubber 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating compressor inserted into an air conditioner, a refrigerator, and the like, and more particularly, to reducing (absorbing and mitigating) vibration generated during operation of the compressor. The present invention relates to a device for reducing vibration of a compressor, in which a fixing structure of a supporting spring to be improved is improved so as to prevent detachment of the supporting spring.

[0002]

2. Description of the Related Art As shown in FIGS.
There are upper and lower shells 1 and 2 for protecting and sealing the internal components, and a stator 3 is provided inside the upper and lower shells 1 and 2 for supplying an external power supply to form a magnetic field. Inside the stator 3, a rotor 5 that is rotated by the influence of a magnetic field formed on the stator 3 is provided.

A rotating shaft 9 is provided inside the rotor 5 and rotates in conjunction with the rotor 5. One end of the rotating shaft 9 reciprocates the rotating motion of the rotating shaft 9. A connecting rod 11 to be converted is provided, and a piston 13 is provided at an end of the connecting rod 11 so as to reciprocate in conjunction with the reciprocating movement of the connecting rod 11.

[0004] Outside the piston 13, the cylinder 13 guides the piston 13 to reciprocate and forms a cylinder block 15 so as to form a space in which the refrigerant is compressed.
A valve plate 21 provided with a suction hole 17 and a discharge hole 19 is provided on an upper surface of the cylinder block 15. A suction chamber 23 and a discharge chamber 23 are provided on one surface of the valve plate 21. A cylinder head 27 having a hole 25 is provided, and a gasket 29 is inserted between the valve plate 21 and the cylinder head 27 so as to maintain airtightness.

At this time, snubbers 31 are welded to four locations inside the lower shell 2, and the snubbers 31 are welded.
A support spring 33 is forcibly fitted to absorb vibration generated during operation of the compressor, and bosses 35 are formed at four positions on the lower end side of the cylinder block 15 so that the support spring 33 is It is designed to be mounted inside the upper end.

A press-fit portion 31a is formed on the snubber 31 so that the support spring 33 is fitted into the snubber 31, and a lower end of the support spring 33 is formed on an outer peripheral surface of the press-fit portion 31a as shown in FIG. It is inserted through the upper part of the snubber 31 in the direction of the arrow and firmly fitted.

Incidentally, reference numeral 31b, which is not explained in the figure, denotes an engaging projection to which the support spring 33 is inserted and locked, 37 is a suction muffler for sending a refrigerant to the cylinder block 15, and 39 is a suction muffler. 37 shows a communication pipe for sending 37 refrigerant to the cylinder block 15.

When power is applied to the conventional compressor configured as described above, a magnetic field is formed in the stator 3 and the rotor 5 is rotated according to the magnetic field formed in the stator 3. Accordingly, the rotating shaft 9 provided integrally with the rotor 5 rotates, and the connecting rod 11 provided at one end of the rotor 5 reciprocates in a linear direction according to the rotation of the rotor 5. At the same time, the piston 13 provided inside one end of the connecting rod 11 and inside the cylinder block 15 is reciprocated linearly.

At this time, the suction muffler 37 and the communication pipe 39
The refrigerant flowing into the suction chamber 23 of the cylinder head 27 passes through the cylinder block 15 by pushing a suction valve (not shown) provided in the suction hole 17 of the valve plate 21, and is compressed as the piston 13 moves. The pressure of the refrigerant in the cylinder block 15 becomes high and the cylinder block 1 passes through the discharge hole 19 of the valve plate 21.
5 is discharged outside.

On the other hand, the vibration generated during the operation of the compressor is absorbed by the support spring 33 mounted on the snubber 31 and acts as a buffer.

[0011]

By the way, in the conventional compressor constructed as described above, when the vibration that occurs during operation occurs in the diagonal direction of the left and right, the press-fitting portion 31 of the snubber 31 is used.
There has been a problem that the support spring 33 that has been tightly fitted to a is detached, resulting in a failure of the device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned various problems, and an object of the present invention is to prevent a support spring from being detached from a snubber and to absorb and reduce vibration. SUMMARY OF THE INVENTION It is an object of the present invention to provide a compressor vibration reducing device adapted to be driven.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention absorbs and reduces vibration generated when a rotating shaft is rotated by driving a stator and a rotor. As described above, in a compressor in which a support spring is provided between a cylinder block and a snubber, the outer peripheral surface of a predetermined end of the snubber is not supported even if vibration is generated in a left-right diagonal direction during compressor operation. A helical surface is formed that is helically coupled to each other so that the spring and the snubber are not separated from each other.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the attached drawings 4 and 5. In the figure, the same components and configurations as those of the related art are denoted by the same names and reference numerals, and overlapping description will be omitted.

According to the present invention, as shown in FIGS. 4 and 5, when the support spring 33 is fitted to the outer periphery of the snubber 31 through the upper portion of the snubber 31 at the middle of the outer peripheral surface, the lower end of the support spring 33 is mounted. So that the engagement protrusion 31b
The support spring 33 is not disengaged on the outer peripheral surface with respect to the distance from the locking projection 31b to the upper end of the snubber 31 even when vibration occurs in the left and right diagonal directions during compressor operation. The spiral surface 31c is formed as described above.

At this time, the direction of the spiral surface 31c is formed in the same direction as the rotation direction of the rotor 5.

Hereinafter, the operation and effect of the present invention configured as described above will be described. When the lower end of the support spring 33 is inserted through the upper end of the spiral surface 31c to attach the support spring 33 to the spiral surface 31b of the snubber 31, and the support spring 33 is rotated in the direction of the arrow as shown in FIG. The mutual attachment is performed while the pitch is rotated along the valley portion of the spiral surface 31c.

When the compressor is operated in such an assembled state, the supporting spring 33 not only smoothens the vertical compression action generated when the compressor is operated,
Improves impact.

Further, even if the support spring 33 is vibrated diagonally in the left and right directions, the support suer ring 33 and the spiral surface 3
In addition to the fact that there is no gap between the first and second members 1c, they are not separated from each other.

Further, since the direction of the spiral surface 31c is formed in the same direction as the rotation direction of the rotor 5, the support spring 31 is further strongly connected to the spiral surface 31c when the rotor 5 rotates, and the mutual connection state is established. To strengthen.

[0021]

As described above, according to the vibration reduction device for a compressor according to the present invention, the structure is such that the spiral surface is formed such that the supporting spring is coupled to the outer peripheral surface of the snubber in a spiral manner. This not only increases the fixing force between the support spring and the snubber, but also prevents the mutual coupling state from being released due to the vibration generated during the operation of the compressor, thereby guaranteeing the reliability and stability of the equipment It has the possible advantages.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing the inside of a conventional compressor.

FIG. 2 is an enlarged view showing a conventional apparatus for reducing vibration of a compressor.

FIG. 3 is an enlarged view showing the shape of a conventional snubber.

FIG. 4 is an enlarged view showing a vibration reducing device according to the present invention.

FIG. 5 is an enlarged view showing the shape of a snubber according to the present invention.

[Explanation of symbols]

 Reference Signs List 3 stator 5 rotor 9 rotating shaft 15 cylinder block 31 snubber 31b engaging protrusion 31c spiral surface 33 support spring 35 boss

Claims (2)

[Claims] 1. A compressor in which a support spring is provided between a cylinder block and a snubber so as to absorb and reduce vibrations generated when a rotating shaft is rotated according to driving of a stator and a rotor. In the outer peripheral surface of the predetermined end of the snubber, even if vibration is generated in the left and right diagonal directions during the compressor operation, the support spring and the snubber are mutually connected in a spiral direction so as not to be separated from each other. A vibration reducing device for a compressor, wherein a spiral surface is formed. 2. The compressor according to claim 1, wherein the spiral surface is formed in the same direction as a rotation direction of the rotor so as to increase a connection state with the support spring. apparatus.