CN216407610U

CN216407610U - Axial balancing device for single-screw compressor

Info

Publication number: CN216407610U
Application number: CN202122780468.5U
Authority: CN
Inventors: 钟伟华; 黄韶云; 季小军
Original assignee: Lisen Air Conditioning & Refrigeration Suzhou Co ltd
Current assignee: Lisen Air Conditioning & Refrigeration Suzhou Co ltd
Priority date: 2021-11-14
Filing date: 2021-11-14
Publication date: 2022-04-29
Anticipated expiration: 2031-11-14

Abstract

The utility model discloses an axial balancing device for a single-screw compressor, which comprises a main shaft, a main screw rotor, a star wheel assembly, a bearing seat and an elastic pad, wherein the main screw rotor is arranged on the main shaft, the star wheel assembly is meshed with the main screw rotor and is driven to rotate by the main screw rotor, a tail end bearing is arranged in the bearing seat, a star wheel shaft of the star wheel assembly is rotatably connected into the bearing seat through the tail end bearing, and the elastic pad is filled at the contact part of the tail end bearing and the bearing seat.

Description

Axial balancing device for single-screw compressor

Technical Field

The utility model relates to the field of compressor equipment, in particular to an axial balancing device for a single-screw compressor.

Background

A compressor is a driven fluid machine that raises low-pressure gas into high-pressure gas, and is a heart of a refrigeration system. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe.

The semi-closed single screw compressor belongs to one kind of compressor, and its main moving parts are main rotor and star wheel rotating assembly symmetrically arranged on two sides, belonging to positive displacement compressor. In order to improve the service life and energy efficiency of the compressor and reduce the wear of key operation components, the present application provides an axial balancing device for a single screw compressor to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to an axial balancing device for a single screw compressor, so as to solve the problems mentioned in the background art.

Based on the purpose, the utility model provides an axial balancing device for a single-screw compressor, which comprises a main shaft, a main screw rotor, a star wheel assembly, a bearing seat and an elastic pad, wherein the main screw rotor is arranged on the main shaft, the star wheel assembly is meshed with the main screw rotor and is driven by the main screw rotor to rotate, a tail end bearing is arranged in the bearing seat, a star wheel shaft of the star wheel assembly is rotatably connected into the bearing seat through the tail end bearing, and the elastic pad is filled at the contact part of the tail end bearing and the bearing seat.

Preferably, a bearing seal fixing plate is arranged at the side end of the bearing seat.

Preferably, the lateral cross section of the elastic pad is of a wave-shaped structure.

Preferably, the right cross section of the elastic cushion is of an annular structure and is sleeved outside the star wheel shaft.

From the above, it can be seen that the beneficial effects of the present invention are: the utility model arranges a wave-shaped elastic pad at the bearing at the tail end of the star wheel shaft of the star wheel assembly, which can reduce the axial shake through the reaction force, thereby achieving the effect of axial balance, effectively solving the problem that the energy efficiency of the compressor is reduced due to the abrasion of the assembly and reducing the noise to a certain extent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the bearing housing of the present invention.

In the reference symbols: 1. a starwheel assembly; 2. a main screw rotor; 3. a main shaft; 4. a wave-shaped elastic pad; 5. a tail end bearing; 6. a bearing seal fixing plate; 7. a bearing seat; 11. star wheel axle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Referring to fig. 1-2, an axial balancing device for a single screw compressor includes a main shaft 3, a main screw rotor 2, a star wheel assembly 1, a bearing seat 7 and a spring washer 4, the main screw rotor 2 is arranged on the main shaft 3, the star wheel component 1 is meshed with the main screw rotor 2, the star wheel component 1 is driven by the main screw rotor 2 to rotate, a tail end bearing 5 is arranged in the bearing seat 7, the star wheel shaft 11 of the star wheel assembly 1 is rotatably connected inside the bearing seat 7 through the tail end bearing 5, the contact part of the tail end bearing 5 and the bearing seat 7 is filled with the elastic pad 4, the wave-shaped elastic pad 4 is arranged at the tail end bearing 5 of the star wheel shaft 11 of the star wheel assembly 1, the axial shake can be reduced through the counterforce, therefore, the axial balance effect is achieved, the problem that the energy efficiency of the compressor is reduced due to component abrasion can be effectively solved, and the noise is reduced to a certain extent.

As a modification of the above scheme, a bearing seal fixing plate 6 is arranged at the side end of the bearing seat 7.

As a modification of the above scheme, the lateral cross section of the elastic pad 4 is in a wave-shaped structure.

As a modified scheme of the scheme, the right cross section of the elastic cushion 4 is in an annular structure and is sleeved outside the star wheel shaft 11.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the utility model, which can be embodied in many different forms than described herein, and therefore the utility model is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An axial balancing device for a single screw compressor, comprising:

a main shaft (3);

the main screw rotor (2), the said main screw rotor (2) is set up on the basic shaft (3);

the star wheel assembly (1) is meshed with the main screw rotor (2), and the star wheel assembly (1) is driven to rotate by the main screw rotor (2);

the star wheel assembly comprises a bearing seat (7), wherein a tail end bearing (5) is arranged in the bearing seat (7), and a star wheel shaft (11) of the star wheel assembly (1) is rotatably connected in the bearing seat (7) through the tail end bearing (5); and

the elastic pad (4) is filled at the contact part of the tail end bearing (5) and the bearing seat (7).

2. The axial balancing device for single screw compressors according to claim 1, characterized in that the bearing seat (7) is provided with a bearing seal fixing plate (6) at the side end.

3. The axial balancing device for single screw compressors according to claim 1, characterized in that the lateral cross-section of the spring washer (4) is of a wave-shaped configuration.

4. The axial balancing device for the single screw compressor according to claim 1, wherein the elastic pad (4) has a circular cross section and is sleeved outside the star wheel shaft (11).