CN204692090U - A kind of rotor-type compressor - Google Patents

Abstract

The utility model discloses a rotor type compressor, which comprises an upper outer cover, a motor stator, an integrated frame, a pump body structure and a lower outer cover; the integrated frame includes a cylinder and a frame arranged in the cylinder, and the cylinder and the machine The frame is integrally processed; the top of the frame is provided with an inner concave platform, and the bottom of the inner concave platform is a concave platform plane, and the motor stator is directly fixed on the inner concave platform plane by adhesives/bolts; the pump body structure is passed through three One screw is fixed on the integrated frame, the upper part of the integrated frame is connected and fixed with the upper cover, and the lower part is connected and fixed with the lower cover; the pump body structure includes motor rotor, eccentric shaft, upper cover, rotor, lower cover and cylinder; eccentric The motor rotor is fixed on the upper part of the shaft, and the rotor is installed on the lower part; the cylinder is fixed between the upper cover and the lower cover, and the rotor is located in the cylinder; the eccentric shaft passes through the upper cover and the lower cover. Compared with the prior art, the utility model has the advantages of uniform gap between the stator and the rotor of the motor, small deformation of the pump body, better overall manufacturability, and the like.

Description

A rotary compressor

【Technical field】

The utility model relates to the technical field of rotor compressors, in particular to a rotor compressor.

【Background technique】

Rotary compressors mostly heat-shrink the motor stator on the shell, and weld the pump body assembly on the shell through three or more plug welding spots on the cylinder or upper cylinder head. It is difficult to ensure that the motor stator and rotor are coaxial, and it is easy to cause welding deformation of the pump body components. Although the frame structure proposed by the patent ZL96120366.8 can make the motor stator and rotor easy to achieve coaxiality and avoid welding deformation of the pump body, it still needs to heat the motor stator on the casing, which causes the motor stator to be subjected to compressive stress. The performance is unfavorable, and the frame must be welded on the housing through three or more plug welding spots simultaneously, and its assembly process is more complicated.

【Content of utility model】

The purpose of the utility model is to provide a rotary compressor to overcome the above-mentioned technical problems in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A rotor type compressor, comprising an upper outer cover, a motor stator, an integrated frame, a pump body structure and a lower outer cover; the integrated frame includes a cylinder body and a frame arranged in the cylinder body, and the cylinder body and the frame are integrally processed The top of the frame is provided with an inner concave platform, and the bottom of the inner concave platform is a concave platform plane, and the motor stator is directly fixed on the inner concave platform plane by adhesives/bolts; the pump body structure is fixed on the inner concave platform by three screws. On the one-piece frame, the upper part of the one-piece frame is connected and fixed with the upper cover, and the lower part is connected and fixed with the lower cover; the pump body structure includes the motor rotor, eccentric shaft, upper cover, rotor, lower cover and cylinder; the upper part of the eccentric shaft is fixed with The motor rotor and the lower part are equipped with a rotor; the cylinder is fixed between the upper cover and the lower cover, and the rotor is arranged in the cylinder; the eccentric shaft passes through the upper cover and the lower cover.

Preferably, the one-piece frame is made by one-shot casting.

Preferably, the integrated frame is processed by metal materials.

Preferably, the metal material is cast iron.

Preferably, the metal material is low carbon steel.

Preferably, the integrated frame is connected with the upper cover and the lower cover by welding or glue.

Preferably, the integrated frame is provided with an intake connection pipe communicating with the cylinder; the integrated frame is in close contact with the cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

Compared with the prior art, the utility model directly casts or processes the shell and the frame into one part, and processes a platform (inner concave platform plane) on the integrated frame of the compressor, and the motor stator is installed on this platform , the pump body is fixedly connected to the lower plane of the frame through the cylinder, which ensures the uneven gap between the motor stator and the housing, and the stator-rotor gap, while avoiding the deformation of the pump body and eliminating the stator that affects the performance of the motor Shrink-fit process and plug-welding frame process. Compared with the prior art, the utility model has the advantages of uniform gap between the stator and the rotor of the motor, small deformation of the pump body, better overall manufacturability, and the like.

【Description of drawings】

Fig. 1 is the structural representation of the utility model;

Among them, 1-upper cover, 2-motor stator, 3-motor rotor, 4-integrated frame, 5-eccentric shaft, 6-upper cover, 7-screw, 8-rotor, 9-lower cover, 10-lower Outer cover, 11-cylinder, 12-intake connecting pipe, 13-inner concave platform, 131-inner concave platform plane.

【Detailed ways】

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

As shown in Figure 1, the utility model is a rotor type compressor, which includes an upper housing 1, a motor stator 2, a motor rotor 3, an integrated frame 4, an eccentric shaft 5, an upper cover 6, screws 7, a rotor 8, a lower Cover 9, lower housing 10 and cylinder 11. The one-piece frame 4 is formed by machining from metal material (such as low carbon steel (45)).

The integrated frame 4 includes a cylinder body 40 and a frame 41 arranged in the cylinder body 40. The cylinder body 40 and the frame 41 are integrally processed to form an integrated frame 4; the top of the frame 41 There is an inner concave platform 13, the bottom of the inner concave platform 13 is a concave platform plane 131, the motor stator 2 is directly installed on the inner concave platform plane 131, fixed/bolted with adhesive, the motor stator is installed on this step On the flat platform, it can effectively prevent its radial movement and position the motor stator 2, so that the coaxiality between the integrated frame 4 and the motor stator 2 can be well guaranteed, and the thermal deformation of the stator caused by the high temperature of the heat sleeve can be avoided. It is beneficial to ensure the gap between the stator and rotor.

The pump body structure is fixed on the integrated frame 4 by three screws 7, the upper part of the integrated frame 4 is connected and fixed with the upper cover 1 through laser welding, and the lower part is connected and fixed with the lower cover 10. The integrated frame 4 The top of the top is provided with an inner concave platform 13, and this inner concave platform 13 is provided with an inner concave platform plane 131, and the lower end of the motor stator 2 is fixedly connected on the inner concave platform plane 131 by bolts.

The pump body structure includes: motor rotor 3, eccentric shaft 5, upper cover 6, rotor 8, lower cover 9 and cylinder 11; motor rotor 3 is fixed on the upper part of eccentric shaft 5, and rotor 8 is installed on the lower part; cylinder 11 is fixed on the upper cover 6 Between the rotor 8 and the lower cover 9, the rotor 8 is located in the cylinder 11; the eccentric shaft 5 passes through the upper cover 6 and the lower cover 9.

The integrated frame 4 is provided with an intake connecting pipe 12 communicating with the cylinder 11; the integrated frame 4 of the utility model is in close contact with the cylinder 11, and there is no need to weld additional pipes between the two.

Example 2

Referring to Fig. 1, the utility model is a rotor type compressor, in which the upper part of the integrated frame 4 is connected and fixed with the upper outer cover 1 by glue, and the lower part is connected and fixed with the lower outer cover 10 by glue, and the lower end of the motor stator 2 is glued It is connected and fixed on the inner concave platform plane 131, and the rest of the structure is the same as that of Embodiment 1.

Claims (3)

1. A rotor compressor, characterized in that it comprises an upper housing (1), a motor stator (2), an integrated frame (4), a pump body structure and a lower housing (10); The integrated frame (4) comprises a cylinder body (40) and a frame (41) arranged in the cylinder body (40), and the cylinder body (40) and the frame (41) are integrally processed; the frame (41 ) is provided with an inner concave platform (13), the bottom of the inner concave platform (13) is a concave platform plane (131), and the motor stator (2) is directly fixed on the inner concave platform plane (131) by adhesives/bolts superior; The pump body structure is fixed on the integrated frame (4) by three screws (7), the upper part of the integrated frame (4) is connected and fixed with the upper outer cover (1), and the lower part is connected and fixed with the lower outer cover (10); The pump body structure includes a motor rotor (3), an eccentric shaft (5), an upper cover (6), a rotor (8), a lower cover (9) and a cylinder (11); the upper part of the eccentric shaft (5) is fixed with a motor rotor (3 ), the lower part is equipped with a rotor (8); the cylinder (11) is fixed between the upper cover (6) and the lower cover (9), and the rotor (8) is located in the cylinder (11); the eccentric shaft (5) passes through Upper cover (6) and lower cover (9); The one-piece frame is formed by casting, or the one-piece frame is processed by metal materials; The one-piece frame is connected with the upper outer cover and the lower outer cover by welding or glue; The integrated frame (4) is provided with an intake connecting pipe (12) communicating with the cylinder (11); the integrated frame (4) is in close contact with the cylinder (11). 2. A rotary compressor according to claim 1, characterized in that said metal material is cast iron. 3. A rotary compressor according to claim 1, characterized in that said metal material is low carbon steel.