CN202391735U

CN202391735U - Rotary type compressor

Info

Publication number: CN202391735U
Application number: CN2011205097096U
Authority: CN
Inventors: 吴延平
Original assignee: 广东美芝制冷设备有限公司
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-08-22

Abstract

The utility model discloses a rotary type compressor. The rotary type compressor comprises a sealing shell, a motor assembly and a pump body assembly, wherein the motor assembly and the pump body assembly are arranged in the sealing shell; the motor assembly consists of a stator and a rotor; the pump body assembly comprises a cylinder, an upper bearing, a lower bearing, a crankshaft, a piston and a sliding piece assembly; the cylinder is provided with a sliding piece groove; the upper bearing and the lower bearing are used for sealing; the crankshaft is hot-sheathed on the rotor; the piston is placed in the cylinder; the sliding piece assembly is placed in the sliding piece groove and consists of a sliding piece and a rolling needle; an installing groove for installing the rolling needle is arranged at the head part of the sliding piece; and a boss mechanism for preventing the rolling needle from separating is arranged at the head part of the sliding piece. The rotary type compressor disclosed by the utility model has the advantages that since the boss mechanism for preventing the rolling needle from separating is arranged at the head part of the sliding piece and a boss is formed by extruding materials at the side surface of the sliding piece or is formed by extruding materials at the front end of the sliding piece, the phenomenon of radial separation of the rolling needle when being installed and operating is prevented.

Description

Rotary compressor

Technical field

The utility model relates to a kind of rotary compressor.

Background technique

Existing rotary compressor; As shown in Figure 1; Described compressor comprises seal casinghousing, is installed in electric machine assembly and pump assembly in the seal casinghousing; Electric machine assembly is made up of stator and rotor, pump assembly comprise the cylinder that has vane slot, the upper bearing (metal) that is used to seal and lower bearing, hot jacket at epitrochanterian bent axle, be positioned over piston in the cylinder, be positioned over the slide plate in the vane slot, owing to be sliding friction between slide plate head and piston periphery; The big slide plate wearing and tearing of friction factor are bigger, and the compressor power consumption is big like this.These engineers and technicians are improved, carry out wear-resistant processing or self lubricating material employing at slide plate head surface and piston outer surface, to increase the wear resistance of slide plate.Or the slide plate and the way of contact of piston periphery changed into rolling contact; Like the disclosed application number of Chinese patent document is a kind of compressor patent of CN200620044268.6; This compressor comprises slide plate and vane slot; Through at least one needle roller is set in vane slot, perhaps the slide plate head also is provided with a needle roller.It is said that it can reduce the wearing and tearing between slide plate and the vane slot internal surface, and then reduce the loss of compressor power input, improve the reliability of compressor.But wherein do not provide the concrete structure of this kind slide plate head, and adopt which kind of mode to prevent coming off of needle roller when not having slide plate head mounting groove to be processed into circle.Therefore, be necessary to do further improvement and perfect.

The model utility content

The purpose of the utility model aims to provide a kind of simple and reasonable, rotary compressor that fabricating cost is low, applied widely, to overcome deficiency of the prior art.

A kind of rotary compressor by this purpose design; Comprise seal casinghousing, be installed in electric machine assembly and pump assembly in the seal casinghousing; Electric machine assembly is made up of stator and rotor; Pump assembly comprise the cylinder that has vane slot, the upper bearing (metal) that is used to seal and lower bearing, hot jacket at epitrochanterian bent axle, be positioned over piston in the cylinder, be positioned over the slide plate assembly in the vane slot; The slide plate assembly is made up of slide plate and needle roller, and the slide plate head has the mounting groove that needle roller is installed, and its structure characteristic is that the slide plate head is provided with the boss mechanism that is used to prevent the needle roller disengaging.

Said boss mechanism is one group with two and is symmetrical set on the slide plate head and protrudes from mounting groove; Boss mechanism is more than 1 group or 1 group.

Said boss mechanism is formed by side extrded material in mounting groove of slide plate head, and boss mechanism protrudes from the inner side surface of mounting groove.

Said boss mechanism is formed by front end extrded material in mounting groove of slide plate head, and boss mechanism is depressed in the slide plate front end.

The thin space of said slide plate head mounting groove is L1, and the needle roller diameter is d, and L1＜d-0.02mm is then arranged.

The thin space of said slide plate head mounting groove is L2, and the needle roller diameter is d, and L2＜d-0.02mm is then arranged.

Because needle roller is installed in the slide plate head mounting groove, need prevent that when compressor operating needle roller breaks away from the slide plate mounting groove.The utility model is through being provided with the boss mechanism that is used to prevent the needle roller disengaging at the slide plate head, this boss is by the extrded material moulding of slide plate side, and perhaps slide plate front end extrded material moulding prevents that the radially break-off when needle roller reaches operation when mounted from occurring.

Description of drawings

Fig. 1 is an existing technology rotary compressor structural representation.

Fig. 2 is the structural representation of the utility model compressing mechanism.

Fig. 3 is an A place structure for amplifying schematic representation among Fig. 2.

Fig. 4 is the schematic representation of embodiment's slide plate boss mechanism by the extrusion modling of slide plate side.

Fig. 5 is a B place structure for amplifying schematic representation among Fig. 4.

Fig. 6 two embodiment's slide plate boss mechanisms are by the schematic representation of slide plate front end extrusion modling.

Fig. 7 is a C place structure for amplifying schematic representation among Fig. 6.

Among the figure: 1 is seal casinghousing, and 2 is stator, and 3 is rotor, and 4 is cylinder, and 4.1 is vane slot, and 5 is upper bearing (metal), and 6 is lower bearing, and 7 is bent axle, and 8 is piston, and 9 is the slide plate assembly, and 9.1 is slide plate, and 9.2 is needle roller, and 9.3 is mounting groove, and 9.4 is boss mechanism.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

First embodiment

Referring to Fig. 2-Fig. 5; A kind of rotary compressor; Comprise seal casinghousing 1, be installed in electric machine assembly and pump assembly in the seal casinghousing 1; Electric machine assembly is made up of stator 2 and rotor 3, bent axle 7 on rotor 3 of the upper bearing (metal) 5 that pump assembly comprises the cylinder 4 that has vane slot 4.1, be used to seal and lower bearing 6, hot jacket, is positioned over piston 8 cylinder 4 in, is positioned over the slide plate assembly 9 in the vane slot 4.1, and slide plate assembly 9 is made up of slide plate 9.1 and needle roller 9.2; Slide plate 9.1 heads have the mounting groove 9.3 that needle roller 9.2 is installed, and slide plate 9.1 heads are provided with the boss mechanism 9.4 that is used to prevent needle roller 9.2 disengagings.Boss mechanism 9.4 is one group with two and is symmetrical set on slide plate 9.1 heads and protrudes from mounting groove 9.3; Boss mechanism 9.4 is 2 groups.Be provided with 2 groups and more be prone to location needle roller 9.2 in mounting groove 9.3, prevent that needle roller 9.2 radially breaks away from convex platform mechanism 9.4.Boss mechanism 9.4 is formed by side extrded material in mounting groove 9.3 of slide plate 9.1 heads, and boss mechanism 9.4 protrudes from the inner side surface of mounting groove 9.3.Slide plate 9.1 head mounting grooves 9.3 thin spaces are L1, and needle roller 9.2 diameters are d, and L1＜d-0.02mm is then arranged.

Second embodiment

Referring to Fig. 6-Fig. 7, the present embodiment and first embodiment's difference is that boss mechanism 9.4 is formed by front end extrded material in mounting groove 9.3 of slide plate 9.1 heads, and boss mechanism 9.4 is depressed in slide plate 9.1 front ends.Slide plate 9.1 head mounting grooves 9.3 thin spaces are L2, and needle roller 9.2 diameters are d, and L2＜d-0.02mm is then arranged.Other is for stating part, with first embodiment.

Claims

1. rotary compressor; Comprise seal casinghousing (1), be installed in electric machine assembly and pump assembly in the seal casinghousing (1); Electric machine assembly is made up of stator (2) and rotor (3); Bent axle (7) on rotor (3) of the upper bearing (metal) (5) that pump assembly comprises the cylinder (4) that has vane slot (4.1), be used to seal and lower bearing (6), hot jacket, be positioned over piston (8) in the cylinder (4), be positioned over the slide plate assembly (9) in the vane slot (4.1); Slide plate assembly (9) is made up of slide plate (9.1) and needle roller (9.2); Slide plate (9.1) head has the mounting groove (9.3) of installation needle roller (9.2), it is characterized in that slide plate (9.1) head is provided with the boss mechanism (9.4) that is used to prevent needle roller (9.2) disengaging.

2. rotary compressor according to claim 1 is characterized in that said boss mechanism (9.4) is one group with two and is symmetrical set on slide plate (9.1) head and protrudes from mounting groove (9.3); Boss mechanism (9.4) is more than 1 group or 1 group.

3. rotary compressor according to claim 1 and 2 is characterized in that said boss mechanism (9.4) is formed by side extrded material in mounting groove (9.3) of slide plate (9.1) head, and boss mechanism (9.4) protrudes from the inner side surface of mounting groove (9.3).

4. rotary compressor according to claim 1 and 2 is characterized in that said boss mechanism (9.4) is formed by front end extrded material in mounting groove (9.3) of slide plate (9.1) head, and boss mechanism (9.4) is depressed in slide plate (9.1) front end.

5. rotary compressor according to claim 3 is characterized in that the thin space of said slide plate (9.1) head mounting groove (9.3) is L1, and needle roller (9.4) diameter is d, and L1＜d-0.02mm is then arranged.

6. rotary compressor according to claim 4 is characterized in that the thin space of said slide plate (9.1) head mounting groove (9.3) is L2, and needle roller (9.4) diameter is d, and L2＜d-0.02mm is then arranged.