KR19990040247U - Seizure prevention type of swash plate compressor - Google Patents

Abstract

The present invention relates to an anti-seizure type swash plate of a swash plate type compressor, and includes a piston inserted into an inclined swash plate (3) and a cylinder (4) which are integral with a driving shaft (2) installed on a central axis of the housing (1). In the swash plate type compressor provided with (5), the swash plate type compression prevention type of the swash plate type compressor, in which the swash plate 3 is connected to the swash plate accommodation space 11 via a pair of connecting shoes 12 and 13, is driven. In swash plate;

It is characterized in that it further comprises a recess in which a radially circular lubricating oil feeding groove 20 is embedded on the connection driving surface F connecting to the shoes 12 and 13 of the swash plate 3,

By providing a lubricating oil supply means between the shoe and the swash plate to improve the lubricity and prevent the seizure of the swash plate and the shoe during over-compression, such as to prevent the failure in advance.

Description

Seizure prevention type of swash plate compressor

The present invention relates to a swash plate for a swash plate compressor of an automotive air conditioner, and more particularly, to prevent seizure during operation in a swash plate compressor, which is a kind of a high-pressure compressed power source that is a driving source of an automobile air conditioner, and to improve the lubricity of the operation. It is related with provision of the structure for doing so.

Due to the simplicity of construction and reliability of operation, the swash plate type compressor is used to incline the swash plate on the shaft to drive the piston that strokes the radially arranged inner wall of the housing. In addition, the swash plate is inserted into the swash plate accommodation space of the piston and is connected as a connecting member such as a shoe.

As described above, when the swash plate integral with the shaft rotates, the piston performs a straight reciprocating motion in the shaft direction by the stroke distance induced with respect to the inclination angle of the swash plate to perform the compression and discharge process.

It is an object of the present invention to increase the connection lubrication activity between the swash plate and the shoe in a swash plate compressor in a vehicle air conditioner having the above-described general configuration.

The anti-seizure swash plate of the swash plate type compressor of the present invention proposed in order to achieve the above object is to increase the lubricity and operability between the shoe connecting the piston.

1 is an overall cross-sectional view of a swash plate compressor for explaining the present invention.

Fig. 2 is a side view and a front view showing a cross section taken along an A-A section showing only a swash plate with a shaft in the configuration of the anti-seizure swash plate of the swash plate type compressor in this article.

* Explanation of symbols for the main parts of the drawings *

1: housing

2: shaft

3: slate

4: cylinder

5: piston

12,13: Shu

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the anti-settling type swash plate of the swash plate compressor of the present invention.

1 is an overall cross-sectional view of a swash plate compressor for explaining the present invention.

Fig. 2 is a side view and a front view showing a cross section taken along the A-A portion of only the shaft portion, showing the configuration of the anti-settling type swash plate of the swash plate type compressor of the present invention.

A schematic configuration and an operation configuration of the swash plate compressor of the conventional configuration shown in FIG. 1 will be described.

The disk-shaped swash plate 3 is fixedly inclined to the shaft 2 provided on the central axis of the housing 1 and driven to rotate by a driving power conducted to the belt or the like from the outside.

Further, a plurality of cylinders 4, which are radially arranged perforated bodies, are disposed on the inner wall side of the housing 1, and the pistons 5 fitted to the cylinders 4 are inserted with the connection surfaces at both ends. .

In the central part of the piston 5, a swash plate accommodation space 11 is provided to accommodate the swash plate, and the swash plate 3 is connected to the swash plate accommodation space 11 via a pair of connecting shoes 12 and 13. Is connected.

Therefore, if the shaft 2 is rotated as described above, the swash plate 3 which is integrally processed or separately processed and fixed is also rotated, and the shaft 2 direction generated by the inclination angle formed by the swash plate 3 is rotated. By rotating the hemispherical shoes 12 and 13 as much as the swing distance of the piston 5, the piston 5 constitutes a predetermined stroke distance, thereby driving the piston 5 inside the cylinder 4.

In the above-described configuration, in the conventional configuration, there is no separate lubrication means between the surface of the swash plate 3 and the shoe, but only by scattering of lubricating oil mixed with the circulating fluid or collected in the lower crankcase C. As lubrication is performed, the lubrication action is not smooth, causing seizure at the time of overload, which causes the failure of the compressor.

In the configuration of the present invention, as shown in Figure 2,

In the configuration of the swash plate 3, a radially circular lubricating oil feeding groove 20 is further provided in a concave shape on the connection driving surface F connected to the shoes 12 and 13.

In the above configuration, it is preferable that the lubrication oil feed groove 20 is formed at a position where the shoes 12 and 13 are placed.

In addition, the lubricating oil feeding groove 20 may be formed at one or more places or may have a spiral shape formed on the upper surface of the connection driving surface F to increase the feeding efficiency.

Therefore, in this configuration, the swash plate 3 connected to the shoes 12 and 13 is formed with a lubrication oil feeding groove 20 so that lubricating oil or the like contained in the circulating pressurized fluid rests on the lubrication oil feeding groove 20 so that it can continue. Lubrication at the connection surface between the shoes 12 and 13 and the swash plate 3 is enabled.

The anti-settling type swash plate of the swash plate-type compressor of the present invention has the effect of preventing failure by preventing sintering of the swash plate at the time of over compression by improving the lubricity by providing a lubricating oil supply means between the shoe and the swash plate. will be.

Claims (4)

An inclined swash plate 3 integral with the driving shaft 2 provided on the central axis of the housing 1, Sintering of the swash plate type compressor in which the swash plate 3 is connected and driven through a pair of connecting shoes 12 and 13 to the swash plate accommodation space 11 of the piston 5 fitted inside the cylinder 4. In preventive swash plate; Squeeze the swash plate type compressor, characterized in that it further comprises a recess in which the radial lubricating oil feed groove (20) is radially inserted on the connection driving surface (F) for connecting the shoe (12, 13) of the swash plate (3). Preventive swash plate. The swash plate prevention type swash plate of claim 1, wherein the lubrication oil feeding groove (20) is formed at a position where the shoes (12, 13) are placed. The swash plate of claim 1, wherein the lubrication oil feeding groove (20) is provided at one or more places. The swash plate of claim 1, wherein the lubrication oil feeding groove (20) is a spiral groove formed on the connection driving surface (F) of the swash plate (3).