CN2699002Y - Vortex automobile air-conditioning compressor with shaft seal on top of upper casing - Google Patents

Abstract

The utility model provides a vortex automobile air-conditioning compressor with shaft seal on terminal, comprising a lower shell, an upper shell connected with the lower shell, a basic shaft loaded on the upper shell, a bearing (9), a shaft seal (10), a bearing (8) installed on the basic shaft and the upper shell and a clutch assembly installed outside the upper shell. The utility model is characterized in that the shaft seal (10) in the inner end part of the top opening of the upper shell and the basic shaft, the bearing (9) is installed on the position of the basic shaft and the upper shell located between the shaft seal (10) and the bearing (8). The utility model can improve the coaxiality accuracy of processing the bearing hole of the upper shell and improve assembly precision, and the utility model is good for assemblage and maintenance, with broad selecting range of bearing lubrication.

Description

The axle end-blocking is put vortex type automobile air conditioner compressor

Technical field:

The utility model is relevant with air condition compressor, and it is relevant that special and an end-blocking are put vortex type automobile air conditioner compressor.

Background technique:

Existing vortex type automobile air conditioner compressor by upper casing, the upper casing that is connected with lower casing, is contained in the main shaft on the upper casing as shown in Figure 2, is loaded on dynamic and static whirlpool dish, bearing (8,9) on the main shaft, is positioned at compositions such as axle envelope between bearing, clutch assembly.Because the axle envelope is positioned between bearing (8,9), so there is following shortcoming:

1), is difficult to guarantee coaxality, the assembly precision of the bearing hole of upper casing dress bearing (8,9) during processing and assembling;

2), when the axle envelope is installed, need take off clutch, take off the upper and lower shell link, lay down upper casing, take out the assembly (being a tight fit in the parts such as main shaft on the bearing) be fitted on the upper casing after, can change the axle envelope, in case axle envelope is damaged, it changes quite difficulty, and assembling, maintenance are very inconvenient;

3), bearing (9) can only adopt self oiling bearing.

The model utility content:

The purpose of this utility model is in order to overcome above deficiency, provide a kind of mounting hole processing that can improve the upper casing bearing coaxial accuracy, improve assembly precision, help assembling, maintenance, bearing range of choice axle end-blocking wide, easy to lubricate is put vortex type automobile air conditioner compressor.

The purpose of this utility model is achieved like this:

The utility model axle end-blocking is put vortex type automobile air conditioner compressor and is comprised lower casing, the upper casing that is connected with lower casing, be loaded on the main shaft on the upper casing, bearing 9, axle envelope 10, be contained in the bearing 8 on main shaft and the upper casing, be contained in the outer clutch assembly of upper casing, it is characterized in that axle envelope 10 places on the top mouth inner end and main shaft of upper casing, bearing (9) is contained in main shaft and upper casing and is positioned on the position of 8 on axle envelope 10 and bearing.

The top mouth inner end of above-mentioned upper casing is equipped with the collar that is pressed on axle envelope 10 end faces.

The utility model is compared with existing vortex type automobile air conditioner compressor, has following advantage:

1, axle envelope is placed on the top mouth inner end and main shaft of upper casing, make the end of the mounting hole site of the bearing on the main shaft in upper casing, can a clamping, an operation finishes processing, improve the coaxial accuracy of upper casing bearing mounting hole processing, helped improving the assembly precision of compressor;

2, assembling, easy to maintenance; The axle envelope is damaged, and only need take off clutch assembly simply, unloads collar, and the axle envelope that can change the outfit quickly and easily is very easy to assembling and maintenance work;

3, the range of choice of axle envelope is wide, easy to lubricate, and the axle envelope can adopt self oiling bearing, also can utilize the oil lubrication in the compressor, adopts non-self oiling bearing.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the structural representation of existing vortex type automobile air conditioner compressor.

Embodiment:

Link together by bolt 3 with lower casing 2 referring to Fig. 1, upper casing 1.Clutch assembly 4 is contained in outside the upper casing.Movable orbiting scroll 5, quiet whirlpool dish 6 place in the lower casing.Main shaft 7 penetrates movable orbiting scroll and places on the upper casing.Bearing 8,9 is contained on main shaft and the upper casing.Axle envelope 10 is contained on upper casing top mouthful inner end and the main shaft.The collar 11 that is contained in upper casing top mouthful inner end compresses axle envelope 10.

Fig. 2 is existing vortex type automobile air conditioner compressor structural representation.Axle envelope 10 is positioned at 8,9 on bearing and is contained on housing and the main shaft.

Claims (2)

1, the axle end-blocking is put vortex type automobile air conditioner compressor, comprise lower casing, the upper casing that is connected with lower casing, be loaded on the main shaft on the upper casing, bearing (9), axle envelope (10) are contained in the bearing (8) on main shaft and the upper casing, are contained in the outer clutch assembly of upper casing, it is characterized in that axle envelope (10) places on the top mouth inner end and main shaft of upper casing, bearing (9) is contained in main shaft and upper casing and is positioned on the position between axle envelope (10) and bearing (8).

2, axle end-blocking as claimed in claim 1 is put vortex type automobile air conditioner compressor, it is characterized in that upper casing top mouthful inner end is equipped with the collar that is pressed on axle envelope (10) end face.

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