CN203867897U

CN203867897U - Sliding vane expander and/or compressor capable of reducing abrasion and resistance to sliding vanes

Info

Publication number: CN203867897U
Application number: CN201420233199.8U
Authority: CN
Inventors: 巫山; 黄少飞
Original assignee: Chongqing Chun Sheng Development In Science And Technology Co Ltd
Current assignee: Chongqing Chun Sheng Development In Science And Technology Co Ltd
Priority date: 2014-05-08
Filing date: 2014-05-08
Publication date: 2014-10-08
Anticipated expiration: 2024-05-08

Abstract

The utility model discloses a sliding vane expander and/or compressor capable of reducing abrasion and resistance to sliding vanes, which comprises a stator (1) with an air cylinder and a rotor (2), wherein the rotor is arranged in the air cylinder of the stator; a plurality of axial rotor slots (3) are formed in the outer circumference of the rotor; the sliding vanes (4) sliding in the radial direction are placed in the rotor slots (3); slots (5) extending to the bottoms of the rotor slots (3) are formed in the surfaces of the sliding vanes (4) or/and the surfaces, in contact with the sliding vanes, of the inner walls of the rotary slots (3). The sliding vane expander and/or compressor capable of reducing the abrasion and resistance to the sliding vanes has the advantages as follows: the sliding friction resistance between the sliding vanes and the surfaces of the inner walls of the rotor slots is reduced to a great extent, negative pressure resistance to the sliding vanes is eliminated, meanwhile, sliding resistance generated at the tops of the sliding vanes due to the atmospheric pressure is lowered, a lubricant easily infiltrates into joint surfaces of the sliding vanes and the rotor slots, and the abrasion amount of sliding vanes and the surfaces of the inner walls of the rotor slots is lowered.

Description

A kind of slipping sheet expander and/or compressor that can reduce slide plate wearing and tearing and resistance

Technical field

The utility model belongs to a kind of mechanical device that utilizes flowing medium to realize transformation of energy, is specifically related to a kind of slipping sheet expander and/or compressor that can reduce slide plate wearing and tearing and resistance.

Background technique

Decompressor is from compressor according to service condition or function is different names, and the service condition of compressor is by motivational drive, and its function is by low-pressure gas boil down to pressurized gas; The service condition of decompressor is to obtain low-pressure gas after passing into pressurized gas, and drive rotor rotation, and its function is outside outputting power.

The structure of slide vane compressor as shown in Figure 1, it has the stator 1 that comprises cylinder, and rotor 2 is installed in stator cylinder, the axle center of the axis deviation stator cylinder of rotor 2, on rotor 2 excircles, have a plurality of axial rotor 3, in rotor 3, be placed with the slide plate 4 radially sliding.Due to rotor eccentric configuration in cylinder, the spatial volume that cylinder inner wall and rotor outer circle surface form is asymmetric, and the spatial volume that wherein has a segmental arc is narrow and another segmental arc spatial volume is roomy relatively.Slide plate stretches out and is close to cylinder inner wall in rotor, and asymmetric spatial separation is become to a plurality of cells, and the cell volume that is positioned at narrow space is less, and it is larger to be positioned at the volume of cell of wide space.Because rotor rotates, the residing position of slide plate is in continuous variation, and the volume of each cell is also in continuous change, and the pressure of little indoor gas changes along with volume-variation, the every rotation of rotor one week, and each slide plate slides up and down once in rotor; Rotor rotates continuously, drives slide plate ceaselessly to slide up and down in rotor.

Existing slipping sheet expander and compressor, the inner wall surface of its slide plate and rotor is all smooth surface, the inner wall surface of rotor scribbles lubricant oil, due between slide plate surface and the oil lamella being attached in the inner wall surface of rotor, there is van der Waals' force, the resistance increase that causes slide plate to slide up and down; Secondly, the top of slide plate is subject to the effect of gas pressure in various degree, having hindered slide plate outwards skids off, again, slipping sheet expander and/or compressor long-time running, because slide plate surface and the superimposed part of inner wall surface of rotor remain laminating, lubricant oil is difficult to infiltrate, and has accelerated the wearing and tearing of the inner wall surface of slide plate and rotor.

Because slide plate 4 is high with the quality of fit requirement of rotor 3, left end capping, right-hand member capping, lubricant oil penetrates into after rotor 3 and end cap face, forms oil film also by each face sealing.When rotor rotates, slide plate 4 skids off rotor under the effect of centrifugal force, in the cavity that rotor 3 and slide plate 4 form, forms negative pressure, and this negative pressure hinders slide plate 4 outwards slides, so the slip of slide plate 4 exists negative pressure resistance, causes slide plate 4 slip difficulties.

Chinese patent literature CN101338749A discloses a kind of " rotary slide sheet type compressor " on January 7th, 2009 and has recorded the rubbing surface being in contact with one another at slide plate and rotor bent axle a plurality of concave points are set, and to reduce the method for friction area, reaches the object that reduces force of sliding friction.But because the area that concave point forms is compared with rotor area of contact with slide plate, its proportion value is less, reduces the DeGrain of the surface friction drag of slide plate; In addition, this patent cannot solve air pressure produces slip resistance, lubricant oil infiltration slide plate and rotor faying surface and the slide plate problems such as negative pressure resistance at slide plate top.

Model utility content

Problem for slip resistance and the wearing and tearing of slide plate in prior art, technical problem to be solved in the utility model is just to provide a kind of slipping sheet expander and/or compressor that can reduce slide plate wearing and tearing and resistance, one side can significantly reduce the sliding-frictional resistance of slide plate and rotor inner wall surface and eliminate the negative pressure resistance of slide plate, can reduce on the other hand air pressure and at slide plate top, produce slip resistance, can also allow lubricant oil easily infiltrate slide plate and rotor faying surface, thereby reduce the wear extent of the inner wall surface of slide plate and rotor.

Technical problem to be solved in the utility model is to realize by such technological scheme, it comprises the stator that contains cylinder and the rotor in stator cylinder, rotor outer circle has a plurality of rotor vertically on week, in rotor, be placed with the slide plate radially sliding, on slide plate surface or/and in the rotor inner wall surface contacting with slide plate, have the groove that leads to rotor bottom.

Owing to having the groove that leads to rotor bottom on slide plate surface, in rotor inner wall surface, in the cell of being separated by slide plate, air under pressure enters the gap of slide plate and rotor inwall junction plane by groove, form air cushion, so greatly reduced slide plate and slided up and down surface friction drag; Meanwhile, air under pressure enters rotor bottom by groove, obtains air pressure in rotor, has eliminated the negative pressure resistance of slide plate, has also offset the pressure that air pressure forms at slide plate top, has further reduced air pressure and at slide plate top, has produced slip resistance; In addition, groove becomes the oil duct of slide plate and rotor faying surface, and lubricant oil easily infiltrates slide plate and rotor faying surface, reduces the wear extent of the inner wall surface of slide plate and rotor.

Owing to having adopted technique scheme, the utlity model has following advantage: significantly reduced the sliding-frictional resistance of slide plate and rotor inner wall surface, eliminated the negative pressure resistance of slide plate, reduce again air pressure and at slide plate top, produced slip resistance, lubricant oil easily infiltrates slide plate and rotor faying surface, has reduced the wear extent of the inner wall surface of slide plate and rotor.

Accompanying drawing explanation

Accompanying drawing of the present utility model is described as follows:

Fig. 1 is the structural representation of the slide vane compressor of background technique;

Fig. 2 is structural representation of the present utility model;

Fig. 3 is the left view (partial sectional view) of Fig. 2;

Fig. 4 is slide vane structure schematic diagram of the present utility model;

In figure: 1. stator; 2. rotor; 3. rotor; 4. slide plate; 5. groove.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail:

As shown in Figures 2 and 3, the utility model comprises the stator 1 that contains cylinder and the rotor 2 in stator cylinder, rotor outer circle has a plurality of rotor 3 vertically on week, in rotor 3, be placed with the slide plate 4 radially sliding, in rotor 3 inner wall surface that contact with slide plate, have the groove 5 that leads to rotor bottom.

Owing to having the groove 5 that leads to rotor bottom in rotor 3 inner wall surface, in the cell of being separated by slide plate 4, air under pressure enters the gap of slide plate and rotor inwall junction plane by groove 4, form air cushion, so greatly reduced slide plate and slided up and down surface friction drag; Meanwhile, air under pressure enters rotor bottom by groove 5, obtains air pressure in rotor, has eliminated the negative pressure resistance of slide plate, has offset again the pressure that air pressure forms at slide plate top, has further reduced air pressure and at slide plate top, has produced slip resistance; In addition, groove 5 becomes the oil duct of slide plate 4 and rotor 3 faying surfaces, and lubricant oil easily infiltrates slide plate 4 and rotor 3 faying surfaces, reduces the wear extent of the inner wall surface of slide plate and rotor.

As shown in Figure 4, on slide plate 4 surfaces, have the groove 5 that leads to rotor bottom.Owing to there being these grooves 5, significantly reduce wearing and tearing and the resistance of slide plate.

Claims

1. slipping sheet expander and/or the compressor that can reduce slide plate wearing and tearing and resistance, comprise the stator (1) that contains cylinder and the rotor (2) in stator cylinder, rotor outer circle has a plurality of rotor (3) vertically on week, in rotor (3), be placed with the slide plate (4) radially sliding, it is characterized in that: on slide plate (4) surface or/and in the rotor contacting with slide plate (3) inner wall surface, have the groove (5) that leads to rotor bottom.