JPS58131394A - Method for fitting oil-supplying piece to rotary compressor - Google Patents

Abstract

PURPOSE:To contrive to enhance oil-supplying performance, by a method wherein a sheet form elastic body provided with a narrow groove at a central part thereof is inserted into the inside of a tapered trunk part of an oil-supplying piece, is located at a position below branchial parts of the piece, is closely fixed at the position by an elastic force, and the piece is fitted to the tip of a shaft. CONSTITUTION:A plurality of pawl parts 11 are provided at the upper part of an oil- supplying piece 9, and branchial parts 12 bent to such positions as to be located on the inner side of the inside diameter of the tapered trunk part 9' of the piece 9 are provided at opposite positions each of which is located between adjacent pair of the pawl parts 11. The sheet form elastic body 10 is inserted into the inside of the tapered trunk part 9', is located at a position below the branchial part 12, and is fixed there by the elastic force, and the piece 9 is fitted to the tip of a shaft 5 attached with a torsion plate 8 at an upper part thereof. The elastic body 10 is provided with the narrow groove 13 at a central part thereof. Accordingly, insertion of the elastic body 10 into the tapered trunk part 9' of the oil-supplying piece 9 can be facilitated, the gap between the elastic body 10 and the inside wall of the trunk part 9' can be reduced to zero, and the oil-supplying performance is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an oil supply piece attached to the tip of a shaft of a rotary compressor.

[Prior art]

A conventional oil supply piece will be explained with reference to FIGS. 1 and 2. Is there an electric part at the top of K//G1? , Compression mechanism section 3 at the bottom
=i, and lubricating oil 4 is stored in the deepest part of the casing 1, and the lubricating oil 4 is supplied to the compression mechanism part 3 by rotation of the oil supply piece 6 attached to the tip of the shaft 5. . As shown in FIG. 2, the structure around the oil supply piece 6 is such that a twist plate 8 is inserted into a hole Z provided in the shaft 5.
protrudes from the shaft 5 and extends into the oil supply piece 6. The disadvantages of this structure are that the twist plate 8 protrudes from the shaft during the assembly process, causing deformation, and when inserting the oil supply piece 6 into the shaft 5, the twist plate 8 is pushed. Due to the gap 29 between the projecting part of the oil supply piece 6 and the oil supply piece 6, the oil supply performance was sometimes poor.

[Purpose of the invention]

The present invention has been made to improve the above-mentioned defects. That is, the objective is to improve the oil supply performance.

[Summary of the invention]

The present invention manufactures a refueling piece having a plurality of claws on the upper side and a tapered copper part on the lower side, and a space between the claws of the oiler piece that is smaller than the inner diameter of the tapered body. The gills are bent to the opposite position,
The thin plate elastic body is fully inserted inside the tapered body of this refueling piece, positioned on the side of the gills, and fixed with elastic force.
This oil supply piece is attached to the tip of the shaft.

[Embodiments of the invention]

The present invention will now be explained with reference to an embodiment shown in FIGS. 3 to 6. The twist plate 8 is made short so that it does not protrude outside the shaft 5, and is attached to the tapered body 9 of the oil supply piece 9 so as not to extend into the tapered body 9 of the oil supply piece 9. A thin plate elastic body 10 (il-) is installed inside the oil supply piece 9. A plurality of claw parts 11 are provided in the F part of the oil supply piece 9, and the inner diameter of the tapered body part 9 is provided between the claw parts 11 and the claw parts 11. The gills 12 bent to a smaller position are provided at opposite positions. 10 thin plate elastic bodies each having a narrow groove 16 in the center are pressed down to the bottom of the gills 12 so that they do not move. It is.

According to this embodiment, since the width tk of the narrow groove provided in the thin plate elastic body is made equal to the difference between the width of the thin plate elastic body and the distance H between the opposing gills, the thin This has the effect of making it easier to insert the elastic plate.

〔Effect of the invention〕

Since the present invention has the above-described structure, the twist plate is not deformed during the assembly process, and there is no risk of the oil supply piece pushing into the twist plate.

In addition, since a thin groove is provided in the center of the thin plate elastic body, it is easy to insert the thin plate elastic body into the tapered body of the refueling piece, and the gap between the thin plate elastic body and the inner wall of the tapered body can be reduced to zero. This has the effect of improving refueling performance.

[Brief explanation of drawings]

Figure 1 shows a conventional rotary compressor [? A top view, FIG. 2 is a sectional view of the area around the oil supply piece of a conventional rotary compressor, and FIG. 6 is a sectional view of the area around the oil supply piece of the present invention.
FIG. 4 is a sectional view of the oil supply piece, FIG. 5 is a plan view of FIG. 4, and FIG. 6 is a top view of the thin elastic body. 4... Lubricating oil, 5... Shaft, 6... Oil supply piece, 7
...Shaft hole, 8...Twist plate, 9...Gap, 1
o...Thin plate elastic body, 11...Claw portion, 12...
Gill part, 13... Thin groove, l... Width of the thin groove, L...
Width of thin plate elastic body, 1]...Distance between gills. Procedural amendment (method) Table 1 of 711 cases Patent application No. 197540 issued by Tji
Name of the person who installs the oil supply piece of a rotary compressor Supplement 11
6 -2:- [, TI Katsu Shigeyo Osamu 1 fortune ・4+ Marunouchi, Chiyoda-ku, Tokyo 100-
No. 5-1 Stock Co., Ltd. Address: Hiroshi;
・・・ 4354221 supplementary +l:, 0 Contents
In the drawings, Figure 6 will be corrected as shown in the attached sheet. Half 6 figures

Claims (1)

[Claims] 1. Manufacture a refueling piece that has a plurality of claws on the L side and a tapered mild steel part on the F side, and have a diameter smaller than the inner diameter of the tapered body between the claws of this oil supply piece. The gills bent to the desired position are placed in opposite positions, and a thin plate elastic body is inserted inside the tapered steel part of this oil supply piece, positioned below the gills, and fixed by elastic force, and this oil supply piece is A rotary compressor oil supply piece that is characterized by being attached to the tip of the shaft.