CN206017154U

CN206017154U - A kind of rotor-type compressor structure

Info

Publication number: CN206017154U
Application number: CN201621053890.3U
Authority: CN
Inventors: 马晖; 张重远; 雷宪玲
Original assignee: QINGAN REFRIGERATION EQUIPMENT CO Ltd XI'AN
Current assignee: QINGAN REFRIGERATION EQUIPMENT CO Ltd XI'AN
Priority date: 2016-09-13
Filing date: 2016-09-13
Publication date: 2017-03-15
Anticipated expiration: 2026-09-13

Abstract

The utility model discloses a kind of rotor-type compressor structure, including the pump housing；The pump housing includes base bearing, supplementary bearing, bent axle, cylinder, rolling piston and thrust bearing；Bent axle includes short shaft diameter, the eccentric diameter of axle and the long diameter of axle being sequentially connected from the bottom to top；Base bearing and supplementary bearing are respectively arranged at cylinder both sides；Rotary piston is arranged in cylinder；Supplementary bearing is coordinated with the short shaft diameter of bent axle, and base bearing is coordinated with the long diameter of axle of bent axle, and rotary piston is coordinated with the eccentric diameter of axle of bent axle；Stepped hole is provided with the end face of flange of supplementary bearing；Thrust bearing is arranged in stepped hole；The lower not-go-end face of bent axle and thrust bearing contact.The utility model makes thrust surface under eccentric shaft be converted into rolling friction with the sliding friction of supplementary bearing flange face, reduces the friction power loss of compressor；Compressor power input is made to reduce 1.5% or so, while the abrasion of the friction pair formed between the lower thrust surface and the end face of flange of supplementary bearing of bent axle when avoiding long-term operating, improves the reliability of compressor.

Description

A kind of rotor-type compressor structure

Technical field

The utility model is related to rotor-type compressor technical field, more particularly to a kind of rotor-type compressor structure.

Background technology

On rotor-type compressor, friction power loss accounts for the 8% of total power consumption, the wherein method of the lower thrust surface of bent axle and supplementary bearing Frictional force between blue end face accounts for the 5～8% of friction power loss, and when operating for a long time, this friction pair is easily worn.

It is necessary to design a kind of rotor-type compressor structure in fact, with the abrasion for having dropped this friction pair having, extends compressor Service life, reduce power consumption.

Utility model content

The purpose of this utility model there are provided a kind of rotor-type compressor structure, to solve on rotor-type compressor, The problem of serious wear between the lower thrust surface and the end face of flange of supplementary bearing of bent axle.

To achieve these goals, the technical solution adopted in the utility model is：

A kind of rotor-type compressor structure, including the pump housing；The pump housing includes that base bearing, supplementary bearing, bent axle, cylinder, rolling are lived Plug and thrust bearing；Bent axle includes short shaft diameter, the eccentric diameter of axle and the long diameter of axle being sequentially connected from the bottom to top；Base bearing and supplementary bearing It is respectively arranged at cylinder both sides；Rotary piston is arranged in cylinder；The short shaft diameter cooperation of supplementary bearing and bent axle, base bearing and bent axle The long diameter of axle coordinate, the eccentric diameter of axle cooperation of rotary piston and bent axle；Stepped hole is provided with the end face of flange of supplementary bearing；Thrust Bearing is arranged in stepped hole；The lower not-go-end face of bent axle and thrust bearing contact.

Further, the height of thrust bearing is H, and the external diameter of rolling piston is D1, and the eccentric throw of bent axle is e, lower thrust The outer radius in face is r；Depth h=H+0.1 of stepped hole～0.2mm, the internal diameter D of stepped hole meet D1-2e-2 >=D >=2r+0.1 ～0.2mm.

Further, also include housing, the pump housing is arranged in housing.

Further, also include motor, the motor is arranged at long diameter of axle periphery.

Further, the bearing is thrust bearing.

Relative to prior art, the utility model has the advantages that：

The utility model arranges stepped hole on supplementary bearing, installs and the bearing for stopping end contact under bent axle in stepped hole, This kind of structure makes thrust surface under eccentric shaft be converted into rolling friction with the sliding friction of supplementary bearing flange face, reduces compressor Friction power loss；The utility model makes compressor power input reduce 1.5% or so, while bent axle when avoiding long-term operating The abrasion of the friction pair formed between lower thrust surface and the end face of flange of supplementary bearing, improves the reliability of compressor.

Description of the drawings

Fig. 1 is the utility model rotor-type compressor structure chart；

Fig. 2 is the enlarged drawing of supplementary bearing and bent axle connecting portion；

Fig. 3 is supplementary bearing structural representation；

Fig. 4 is crankshaft structure schematic diagram；

Fig. 5 is the A direction views (upward view of bent axle) of Fig. 4；

Fig. 6 is rolling piston structural representation；

Fig. 7 is thrust bearing schematic diagram.

Specific embodiment

Below in conjunction with the accompanying drawings the utility model is described in further detail.

As shown in Figures 1 to 7, a kind of rotor-type compressor structure, including housing 1, motor 2 and the pump housing 3；Inside housing 1 The pump housing 3 and motor 2 are sequentially installed with from bottom to top；The pump housing 3 include base bearing 3-1, supplementary bearing 3-2, bent axle 3-3, cylinder 3-4, Rolling piston 3-5 and thrust bearing 3-6；Bent axle 3-3 includes short shaft diameter, the eccentric diameter of axle and the major axis being sequentially connected from the bottom to top Footpath；Base bearing and supplementary bearing are respectively arranged at cylinder both sides；Rotary piston is arranged in cylinder；Supplementary bearing and the short shaft diameter of bent axle Coordinate, base bearing is coordinated with the long diameter of axle of bent axle, rotary piston is coordinated with the eccentric diameter of axle of bent axle.Motor 2 is arranged at length Diameter of axle periphery.

Stepped hole 3-2-2 is provided with the end face of flange 3-2-1 of supplementary bearing 3-2；Thrust bearing 3-6 is arranged on stepped hole 3- In 2-2；The lower not-go-end face 3-3-1 of bent axle 3-3 and thrust bearing 3-6 contact.

The height of thrust bearing 3-6 is H, and the external diameter of rolling piston 3-5 is D1, and the eccentric throw of bent axle 3-3 is e, lower thrust The outer radius of face 3-3-1 is r.

Depth h=H+0.1 of stepped hole 3-2-2～0.2mm, the internal diameter D of stepped hole 3-2-2 meet D1-2e-2 >=D >=2r + 0.1～0.2mm.

This structure can be made in prior art, the lower thrust surface 3-3-1 and the end face of flange 3-2-1 of supplementary bearing 3-2 of bent axle 3-3 Between sliding friction be converted in the utility model the rolling friction of lower thrust surface 3-3-1 and thrust bearing 3-6, friction power loss Reduce, make compressor power input reduce 1.5% or so, while avoiding the lower thrust surface 3- of bent axle 3-3 when operating for a long time The abrasion of the friction pair formed between the end face of flange 3-2-1 of 3-1 and supplementary bearing 3-2, improves the reliability of compressor.

Claims

1. a kind of rotor-type compressor structure, it is characterised in that including the pump housing；The pump housing includes base bearing, supplementary bearing, bent axle, gas Cylinder, rolling piston and bearing；Bent axle includes short shaft diameter, the eccentric diameter of axle and the long diameter of axle being sequentially connected from the bottom to top；Base bearing and Supplementary bearing is respectively arranged at cylinder both sides；Rotary piston is arranged in cylinder；Supplementary bearing is coordinated with the short shaft diameter of bent axle, base bearing Coordinate with the long diameter of axle of bent axle, rotary piston is coordinated with the eccentric diameter of axle of bent axle；Step is provided with the end face of flange of supplementary bearing Hole；Bearing is arranged in stepped hole；The lower not-go-end face of bent axle and bearing contact.

2. a kind of rotor-type compressor structure according to claim 1, it is characterised in that the height of thrust bearing is H, rolling The external diameter of piston is D1, and the eccentric throw of bent axle is e, and the outer radius of lower thrust surface is r；Depth h=H+0.1 of stepped hole～ 0.2mm, the internal diameter D of stepped hole meet D1-2e-2 >=D >=2r+0.1～0.2mm.

3. a kind of rotor-type compressor structure according to claim 1, it is characterised in that also include housing, the pump housing It is arranged in housing.

4. a kind of rotor-type compressor structure according to claim 1, it is characterised in that also include motor, the motor It is arranged at long diameter of axle periphery.

5. a kind of rotor-type compressor structure according to claim 1, it is characterised in that the bearing is thrust bearing.