JPS62251479A - Enclosed compressor - Google Patents

Abstract

PURPOSE:To prevent the abnormal noise by providing a resilient member on at least one of a bearing or an eccentric section of a rotary shaft and positioning said member between the bearing and the eccentric section. CONSTITUTION:A rotary shaft 4 constituting a compression element 3 stands approximately upright and supported by upper and lower horizontal faces 6, 7 at an eccentric section 5 and the bearings 8, 9 facing therewith. A resilient member 14 is placed between the horizontal faces 6, 7 and the bearings 8, 9. The resilient member 14 is provided at the sliding face section of the eccentric section 5 of the bearings 8, 9. Consequently, even when a vibration is excited vertically in the rotary shaft 4, the impact caused through collision between the upper and lower horizontal faces 6, 7 and the facing bearings 8, 9 is absorbed by the resilient member 14 resulting in the elimination of abnormal noise.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hermetic compressor, and particularly to a hermetic compressor suitable for preventing noise from a rotating shaft.

[Prior art]

A conventional hermetic compressor will be explained with reference to FIG.

The electric element Z is arranged in the upper part of the closed container 1, and the compression element 1 is arranged in the lower part, and the rotating shaft 4 forming the pressure element inner part is substantially upright, and faces the upper and lower horizontal planes 6.7 of the eccentricity g5. Bearing 8.
9, and these pulsating surfaces are sucked up by lubricating oil 10 stored at the bottom of the sound container 1 or oil supply 'n11 and supplied through oil supply holes 12, 13, etc., and have a lubricating effect. It is carried out. Other closed type systems open to pressure b& include, for example, Japanese Unexamined Patent Publication No. 59-231182.

[Problem that the invention seeks to solve]

In the above conventional technology, the upper and lower horizontal planes 6 of the eccentric portion 5 of the rotating shaft 4
．． 7 and the bearings 8 and 9 facing them, when the rotating shaft 4 vibrates in the vertical direction, the upper and lower horizontal surfaces 6 and 7 of the eccentric part 5
There was a risk that abnormal noise or noise would be generated due to frost between the bearings 8 and 9 facing them.

An object of the present invention is to provide a hermetic compressor that prevents abnormal noise from a rotating shaft and bearings.

[Means for solving the gap between nine points]

The above purpose is to provide a
A pressure element provided at the lower part of the airtight container, a rotation shaft connecting the compression element and the moving member, an eccentric part provided on the rotation shaft, and a pressure element provided on the upper and lower surfaces of the eccentric part. In a hermetic compressor comprising a bearing, an elastic member is provided on either the bearing or the eccentric portion, and the elastic member is located between the bearing and the eccentric portion.

[Effect]

When the rotating shaft vibrates in the vertical direction, the eccentric portion of the rotating shaft collides with the elastic member of the bearing, absorbing and alleviating the impact.

〔Example〕

Embodiments of the present invention will be described below with reference to FIG.

The electric element is arranged in the upper part of the airtight container l, and the compression element main part is arranged in the lower part. 8.
9, etc., and an elastic member 14 is interposed between the horizontal rI 116.7 and the bearing 8.9. The elastic member 14 is provided on the sliding surface of the eccentric portion 5 of the shaft 8.9.

FIG. 2 illustrates an embodiment of the pond. In the figure, the elastic member 14 is connected to the upper and lower horizontal surfaces 6.7 of the eccentric portion 5.
It was established in

According to the embodiment, even if vertical vibration is excited in the rotating shaft 4, the upper and lower horizontal surfaces 6.7 and the bearings 8.9 facing them are
Since the impact caused by the collision is absorbed and alleviated by the intervening elastic member ζζ, it is possible to prevent abnormal green areas.

Note that by making the elastic member 14 a self-lubricating material, the lubrication effect between the eccentric portion 5 and the bearing 8.9 is improved.

〔Effect of the invention〕

According to the present invention, since it is possible to absorb the collision sound caused by the vertical vibration of the rotating shaft, it is possible to provide the 44 m pressure when the shaft is closed to prevent abnormal shaft noise.

[Brief explanation of drawings]

Fig. 1 is a vertical Ilr side view of a closed type pressure pole using one embodiment of the present invention, Fig. 2 is a longitudinal view of a closed type 1M pole showing another embodiment, and Fig. 3 1 is a longitudinal cross-sectional view of a conventional closed type upper knitting machine. l... Airtight container, 2... Electric element, and... Compression element, 4... Rotating shaft, 5... Eccentric part, 6.7... Upper and lower horizontal planes of eccentric part, 8.9. ...Bearing, 14...Elastic member. vinegar. 11. -+, H-,,-li: Stem 11ii]

Claims (1)

[Claims] an electric element provided in the upper part of the airtight container, a compression element provided in the lower part of the airtight container, a rotating shaft connecting the compression element and the electric element, an eccentric part provided on the rotating shaft, and the above-mentioned In a sealed compression plate comprising bearings provided above and below an eccentric part, an elastic member is provided on either the bearing or the eccentric part, and the elastic member is located between the bearing and the eccentric part. A hermetic compressor featuring: