CN210599405U

CN210599405U - Compressor and air conditioning unit

Info

Publication number: CN210599405U
Application number: CN201921525443.7U
Authority: CN
Inventors: 张治平; 武晓昆; 龙忠铿; 毕雨时
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-05-22
Anticipated expiration: 2029-09-11

Abstract

The application provides a compressor and an air conditioning unit. The compressor comprises a compressor body and an exhaust bearing seat matched with the compressor body, wherein a group of corresponding positioning pin holes are respectively formed in the compressor body and the exhaust bearing seat, and a group of corresponding standby pin holes are respectively formed in the compressor body and the exhaust bearing seat. Use the technical scheme of the utility model, use the dowel to connect organism and exhaust bearing seat through a set of locating pin hole earlier. After the exhaust bearing seat is subsequently disassembled, in order to avoid the risk of loosening of the positioning pin caused by deformation of the positioning pin hole in the disassembling process, the positioning pin hole is arranged by adopting the spare pin hole to connect the machine body and the exhaust bearing seat. Therefore, the positioning precision of the assembled pin after disassembly and inspection can be effectively ensured, the parallel cylindrical buses of the male rotor and the female rotor in the actual operation process are ensured, the male rotor and the female rotor are engaged more stably, the operation noise of the compressor is reduced, and the energy efficiency is improved.

Description

Compressor and air conditioning unit

Technical Field

The utility model relates to a refrigeration plant technical field particularly, relates to a compressor and air conditioning unit.

Background

The compressor generally includes a housing and an exhaust bearing seat, which are connected by a positioning pin. Taking a screw compressor as an example, as shown in fig. 1, a motor and a pair of female and male rotors 3 arranged in parallel are arranged in a machine body 1, the male rotor is driven by a motor 4 to rotate, the female rotor is driven by the male rotor to rotate, and the female and male rotors 3 are periodically meshed to rotate to realize volume change, thereby completing the processes of air suction, compression and air exhaust. In the screw compressor, the high-precision radial exhaust bearing seat 2 is configured to bear radial force and provide precise radial positioning, so that the meshing precision of the rotor is ensured.

Generally, the exhaust bearing seat of the screw compressor is connected with a machine body through pins, after the screw compressor is disassembled and inspected for many times, the pin positioning precision is reduced due to the change of the aperture of a pin hole, the parallelism of cylindrical buses of a male rotor and a female rotor cannot be guaranteed in the actual operation process, the male rotor and the female rotor are meshed and dislocated, the operation noise of the screw compressor is increased, and the energy efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a compressor and air conditioning unit to pin positioning accuracy descends the technical problem that the cooperation precision of the counter shaft that leads to descends after solving among the prior art compressor dismouting.

The embodiment of the application provides a compressor, including the organism and with organism complex exhaust bearing frame, seted up corresponding a set of locating pin hole on organism and the exhaust bearing frame respectively, still seted up corresponding at least a set of spare pinhole on organism and the exhaust bearing frame respectively.

In one embodiment, the backup pin holes are two sets.

In one embodiment, the set of dowel holes includes two first holes in the housing and a second hole in the exhaust bearing block corresponding to the two first holes.

In one embodiment, the line connecting the two first holes passes through the axis of the housing, and the line connecting the two second holes passes through the axis of the exhaust bearing seat.

In one embodiment, the set of backup pin holes includes two third holes on the housing and a fourth hole corresponding to the two third holes on the exhaust bearing mount.

In one embodiment, the line connecting the two third holes passes through the axis of the machine body, and the line connecting the two fourth holes passes through the axis of the exhaust bearing seat.

In one embodiment, the compressor is a screw compressor.

The application also provides an air conditioning unit, which comprises a compressor, wherein the compressor is the compressor.

In the above embodiment, the machine body and the exhaust bearing seat are connected by a set of dowel holes using dowel pins. After the exhaust bearing seat is subsequently disassembled, in order to avoid the risk of loosening of the positioning pin caused by deformation of the positioning pin hole in the disassembling process, the positioning pin hole is arranged by adopting the spare pin hole to connect the machine body and the exhaust bearing seat. Therefore, the positioning precision of the assembled pin after disassembly and inspection can be effectively ensured, the parallel cylindrical buses of the male rotor and the female rotor in the actual operation process are ensured, the male rotor and the female rotor are engaged more stably, the operation noise of the compressor is reduced, and the energy efficiency is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic cross-sectional view of a screw compressor according to the prior art;

fig. 2 is a schematic perspective view of an embodiment of a compressor according to the present invention;

fig. 3 is a schematic structural view of a housing of the compressor of fig. 2;

FIG. 4 is a schematic structural view of an embodiment of a discharge bearing housing of the compressor of FIG. 2;

fig. 5 is a schematic structural view of another embodiment of a discharge bearing housing of the compressor of fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Fig. 2, fig. 3 and fig. 4 show an embodiment of the compressor of the present invention, which includes a compressor body 10 and an exhaust bearing seat 20 cooperating with the compressor body 10, wherein a set of corresponding positioning pin holes are respectively disposed on the compressor body 10 and the exhaust bearing seat 20, and a set of corresponding backup pin holes are further respectively disposed on the compressor body 10 and the exhaust bearing seat 20.

Use the technical scheme of the utility model, use the dowel to connect organism 10 and exhaust bearing frame 20 through a set of dowel hole earlier. After the exhaust bearing seat 20 is subsequently disassembled, in order to avoid the risk of loosening the positioning pin due to deformation of the positioning pin hole in the disassembling process, the positioning pin hole is installed by using the spare pin hole to connect the machine body 10 and the exhaust bearing seat 20. Therefore, the positioning precision of the assembled pin after disassembly and inspection can be effectively ensured, the parallel cylindrical buses of the male rotor and the female rotor in the actual operation process are ensured, the male rotor and the female rotor are engaged more stably, the operation noise of the compressor is reduced, and the energy efficiency is improved.

Alternatively, as shown in fig. 3, the set of dowel holes includes two first holes on the machine body 10, and a second hole corresponding to the two first holes on the exhaust bearing block 20. Thus, the stability of the connection of the pilot pin hole to the body 10 and the exhaust bearing housing 20 can be improved. More preferably, the connecting line of the two first holes passes through the axial center of the machine body 10, and the connecting line of the two second holes passes through the axial center of the exhaust bearing seat 20, so as to further improve the stability of the connection of the positioning pin holes to the machine body 10 and the exhaust bearing seat 20.

Specifically, as shown in fig. 3, the two first holes are JA1 and JA2, respectively, and the two second holes are JB1 and JB2, respectively.

Alternatively, as shown in fig. 4, the set of spare pin holes includes two third holes on the body 10, and a fourth hole corresponding to the two third holes on the exhaust bearing housing 20. This is also to improve the stability of the connection of the pilot pin hole to the body 10 and the exhaust bearing housing 20. More preferably, the connecting line of the two third holes passes through the axis of the machine body 10, and the connecting line of the two fourth holes passes through the axis of the exhaust bearing seat 20, so as to further improve the stability of the connection of the positioning pin holes to the machine body 10 and the exhaust bearing seat 20.

Specifically, as shown in fig. 4, the two third holes are a1, a2, and the two fourth holes are B1, B2.

In the above embodiment, the two third holes and the two fourth holes are symmetrically arranged at both sides of the center of the exhaust bearing seat 20, the horizontal distance from the center of the bore of the male rotor bearing cavity of a1 is x _ a1, and the vertical distance is y _ a 1; a2 has horizontal distance x _ a2 and vertical distance y _ a2 from the center of the bore of the male rotor bearing cavity; b1 has horizontal distance x _ B1 from the center of the bore of the male rotor bearing cavity and vertical distance y _ B1; b2 has horizontal distance x _ B2 from the center of the bore of the male rotor bearing cavity and vertical distance y _ B2; wherein x _ a1 ═ x _ b 1; x _ b2 ═ x _ a 2; y _ a1 ═ y _ b 2; y _ b1 — y _ a 2. Correspondingly, JA1, JA2, JB1 and JB2 correspond to positions a1, a2, B1 and B2.

It should be noted that the positioning pin hole and the backup pin hole may be holes having different positions and structures, so that the positioning pin hole and the backup pin hole are distinguished, and only according to the sequential use relationship, the positioning pin hole is used first, and the backup pin hole is used later.

In the above-described embodiment, only one set of backup pin holes is employed. As another alternative, as shown in FIG. 5, the spare pin holes are in two groups, one group is B1/B2, and the other group is C1/C2.

As other alternative embodiments, more sets of spare pin holes may be provided. Specifically, 2n positioning pin holes may be present in the end face of the machine body 10 and the end face of the exhaust bearing seat 20, where n is 2,4, and 6 …, and in the first assembly process, n or n +1 is selected from the 2n positioning pin holes to mount the positioning pin, so as to connect the machine body 10 and the exhaust bearing seat 20. After the compressor is tested and disassembled, the machine body 10 and the exhaust bearing seat 20 are required to be connected together through the positioning pin again, and at the moment, the positioning pin is installed in the positioning pin hole at the position n or the position n +1 which is not used in the first assembling process, so that the rotor dislocation meshing caused by the looseness of the positioning pin is effectively avoided.

It should be noted that the above-described solution is particularly suitable for screw compressors.

The utility model also provides an air conditioning unit, including foretell compressor. The air conditioning unit adopting the compressor can effectively ensure the positioning precision of the assembled pins after disassembly and inspection, ensure that cylindrical buses of the male and female rotors are parallel in the actual operation process, ensure that the male and female rotors are engaged more stably, reduce the operation noise of the compressor and improve the energy efficiency of the air conditioning unit.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The compressor comprises a machine body (10) and an exhaust bearing seat (20) matched with the machine body (10), wherein a corresponding group of positioning pin holes are formed in the machine body (10) and the exhaust bearing seat (20) respectively, and the compressor is characterized in that at least one group of corresponding standby pin holes are formed in the machine body (10) and the exhaust bearing seat (20) respectively.

2. The compressor of claim 1, wherein the backup pin holes are two sets.

3. The compressor of claim 1, wherein the set of dowel holes includes two first holes on the block (10) and a second hole on the discharge bearing seat (20) corresponding to the two first holes.

4. A compressor according to claim 3, characterized in that the line connecting the two first holes passes through the axial center of the machine body (10) and the line connecting the two second holes passes through the axial center of the discharge bearing seat (20).

5. The compressor of claim 1, wherein the set of backup pin holes includes two third holes on the block (10) and a fourth hole corresponding to the two third holes on the discharge bearing seat (20).

6. A compressor according to claim 5, characterized in that the line connecting the two third holes passes through the axial centre of the body (10) and the line connecting the two fourth holes passes through the axial centre of the discharge bearing support (20).

7. The compressor of claim 1, wherein the compressor is a screw compressor.

8. Air conditioning assembly comprising a compressor, characterized in that it is a compressor according to any one of claims 1 to 7.