CN205533226U - Rotary compressor that volume efficiency is high - Google Patents

Abstract

The utility model discloses a rotary compressor that volume efficiency is high, the rolling rotor that its main shaft drove can press the rotation of rolling on the casing wall of cylinder, and form high -pressure gas chamber and low plenum chamber in rotatory rolling in the cylinder, and high -pressure gas chamber's lateral wall is equipped with exhaust mechanism, exhaust mechanism is including offering the valve guide hole on back cylinder cover's medial surface or on the medial surface of preceding cylinder cap, it accesss to external air discharge duct and installs the valving in the valve guide hole to follow valve guide hole drill way, and the terminal surface of cylinder body covers above the air discharge duct, the valving includes valve and valve spring, the valve cooperates with the pore wall of valve guide hole, it is movable that the valve can reciprocate in the valve guide hole, valve spring sets up between the hole bottom of valve and valve guide hole, make the preceding side end face of valve sealing up the isolation with cylinder and air discharge duct on the direct terminal surface of pressing at the cylinder body after the compressor completion, therefore the clearance volume after the compressor completion is very little, the utility model discloses can improve compressor volume efficiency greatly.

Description

The rotary compressor that a kind of volumetric efficiency is high

Technical field

This utility model relates to compressor field, particularly relates to the rotary compressor that a kind of volumetric efficiency is high, belongs to the improvement technology of rotary compressor.

Background technology

Traditional rotary compressor, although there is the advantages such as simple and compact for structure, parts are few, but there is also problems with:

1. the sealing problem of rolling-rotor.Due to the radial seal constituted between rolling-rotor cylindrical and cylinder body cylinder casing wall, it it is the unequal-interval clearance seal between two arc surfaces of radius not grade, air-proof condition is the most poor, and it is long to seal stroke, therefore, such sealing is enable to reach the seal request of compressor, except will be by the clearance control between rolling-rotor cylindrical and cylinder body cylinder casing wall in addition in the least scope, also need to more lubricating oil and fill up gap, not only technical difficulty is big, and sealing reliability is poor.Although, the axial seal constituted between rolling-rotor two end face outside and drive end bearing bracket inner side end and rear end cap inner side end, it it is all the equidistant clearance seal between plane and plane, gap is relatively readily obtained to control and advantageously form and effectively seals oil reservoir, but to other lubrications sealed of compressor inside and seal offer lubricating oil by these seal clearances owing to lean on, therefore, these air-tightness sealed just are made to be restricted because there is gap.

2. the sealing problem of slide plate.Owing to the sealing between slide plate two inner side end and cylinder body vane slot two groove face and between slide plate two end face outside and front end housing inner side end and back cylinder cover inner side end is all clearance seal, therefore, when allowing for compressor operating, high pressure gas in plenum chamber is known from experience to low-pressure chamber's leakage, and after quitting work, extra-organismal gases at high pressure can be back to again the inside of compressor, so that compressor operating efficiency declines.

3. the volumetric efficiency issues of exhaust gear.Owing to the clearance volume of exhaust gear is bigger, therefore, the volumetric efficiency of compressor compares relatively low.

4. the production cost of compressor and efficiency Preserving problems.Owing to the many places of compressor seal, being all clearance seal, such sealing will be enable to play the effect of sealing it is necessary to have the highest machining accuracy and assembly precision, therefore, not only production cost is high, and cannot keep the high efficiency of compressor life-time service.

Summary of the invention

The purpose of this utility model is for overcoming above-mentioned at least one deficiency of the prior art, it is provided that the rotary compressor that a kind of clearance volume is little, volumetric efficiency is high.

nullIn order to achieve the above object，The technical scheme that this utility model is taked: the rotary compressor that a kind of volumetric efficiency is high，The anterior end surface including cylinder body and being separately fixed at cylinder body and the front end housing of rear side end face and back cylinder cover，The cylinder that casing wall is cylindrical surface is offered in described cylinder body，Rolling rotary compression device it is provided with in the cylinder of described cylinder body，Described rolling rotary compression device includes main shaft and rolling-rotor，Described main shaft includes the front end axle being sequentially connected with、Orientation slide-bar and rear end axle，Outside the orientation slide-bar that described rolling-rotor is sleeved on main shaft，The front-end shaft sleeve of main shaft is contained in the axis hole of front end housing，The rear end axle sleeve of main shaft is contained in the axis hole of back cylinder cover，Described rolling-rotor can be pressed on the casing wall of cylinder rolling and rotate，And in rolling rotation, in cylinder, form plenum chamber and low-pressure chamber，And the sidewall of plenum chamber is provided with exhaust gear，Low-pressure chamber offers air inlet，Described exhaust gear includes the valve guide hole being opened on the inner side end of back cylinder cover or on the inner side end of front end housing、Lead to the air discharge duct in the external world from valve guide hole aperture and be arranged on the valving in valve guide hole，And the end face of cylinder body is covered in above air discharge duct，Described valving includes valve and valve spring，The periphery wall of valve coordinates with the hole wall of valve guide hole，And valve can in valve guide hole reciprocating movement，Between valve spring is arranged at the bottom of the hole of valve and valve guide hole，The anterior end surface making valve can be pressed in the end face of cylinder body and be sealed off with air discharge duct by cylinder.

In such scheme, after the compressed air pressure in the plenum chamber in cylinder reaches necessarily, the elastic force of valve spring can be overcome to promote valve that the anterior end surface of valve pushes away the end face of cylinder body, high pressure gas physical ability is made to discharge from the air discharge duct connected with the aperture of valve guide hole, and after aerofluxus completes, valve can reset again under the elastic force effect of valve spring, the anterior end surface making valve can again be pressed in again the end face of cylinder body and cylinder and air discharge duct be sealed off, owing to the anterior end surface of valve is to directly bear against to reach Guan Bi on the end face of cylinder body, and be to there's almost no or only exist the least clearance volume between anterior end surface and the end face of cylinder body of now valve, the most just can improve the volumetric efficiency of compressor further.

Further, so that valve more successfully can be pushed away open the end face of cylinder body and form exhaust passage and beneficially compressed air is exhausted by the compressed air in high cylinder pressure air chamber, the end face of above-mentioned cylinder body offers pressure storing cavity in the position corresponding with the anterior end surface of valve；Or, the anterior end surface of above-mentioned valve offers pressure storing cavity.After offering pressure storing cavity, compressed air in high cylinder pressure air chamber makes it easy to enter pressure storing cavity and form the biggest pressure area, successfully valve is pushed away cylinder body end face and quickly open exhaust passage, and provide bigger leaving area for compressed-air actuated aerofluxus so that aerofluxus is more smoothly.

In order to make valve can move back and forth and make valve that the gas pressure of engine body exterior can be utilized preferably to seal off cylinder and air discharge duct more neatly, the wall portion of above-mentioned valve guide hole offers through hole.Preferably, at the bottom of above-mentioned through hole is located at the hole of valve guide hole.

The steadiness installed in order to ensure valve spring, the rear side end face of above-mentioned valve offers valve spring fixing hole, and one end of valve spring is sleeved in valve spring fixing hole, and the other end of valve spring is pressed at the bottom of the hole of valve guide hole.

nullFurther，Above-mentioned rolling rotary compression device rolls rotary compression device for deflection，Described rolling rotary compression device also includes eccentricity orientation sleeve，Eccentricity orientation slide opening is offered inside described eccentricity orientation sleeve，Outside the orientation slide-bar that eccentricity orientation sleeve is sleeved on main shaft by its eccentricity orientation slide opening，Between eccentricity orientation sleeve orientation slide-bar on rolling-rotor and main shaft，And eccentricity orientation sleeve can reciprocatingly slide in the direction of the axial line that edge is perpendicular to main shaft on the orientation slide-bar of main shaft，It is additionally provided with compression spring between eccentricity orientation sleeve and orientation slide-bar，Rolling-rotor can be partial to and be pressed on the casing wall of cylinder rolling rotation，Deflection is pressed on the casing wall of cylinder the rolling-rotor rolling rotation，Even if in the case of plenum chamber pressure constantly raises，Its cylindrical can keep being in close contact with the casing wall of cylinder the most all the time，With the gap between cylindrical and the casing wall of cylinder of elimination rolling-rotor，Improve the apex seal performance between rolling-rotor cylindrical and cylinder casing wall and efficiently ensured whole compression process.

Compared with prior art, this utility model has the advantage that

1. clearance volume is little, and compressed capability is strong, and work efficiency is high.

2. technique is simple, and production cost is low.

3. can keep the high efficiency of life-time service.

Accompanying drawing explanation

Fig. 1 is the radial structure schematic diagram within the compressor of this utility model embodiment 1.

Fig. 2 is the axial arrangement schematic diagram within the compressor of this utility model embodiment 1.

Fig. 3 is the radial structure decomposing schematic representation of the deflection rolling rotary compression device of this utility model embodiment 1.

Fig. 4 is the stereochemical structure decomposing schematic representation of the deflection rolling rotary compression device of this utility model embodiment 1.

Fig. 5 is the stereochemical structure decomposing schematic representation of the sliding blade apparatus of this utility model embodiment 1.

Fig. 6 is the axial arrangement decomposing schematic representation of the exhaust gear of this utility model embodiment 1, cylinder body and back cylinder cover.

Fig. 7 is the exhaust gear stereochemical structure decomposing schematic representation with back cylinder cover of this utility model embodiment 1.

Fig. 8 is the stereochemical structure decomposing schematic representation of the compressor of this utility model embodiment 1.

Fig. 9 is circulation work principle schematic of the present utility model.

Figure 10 is the axial arrangement schematic diagram of the vertical structure of the compressor of this utility model embodiment 2.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is described further.Accompanying drawing being merely cited for property explanation, it is impossible to be interpreted as the restriction to this patent.

For more succinct explanation the present embodiment, in accompanying drawing or explanation, some well known to a person skilled in the art but can omit with these incoherent parts of main contents created.Additionally for ease of statement, in accompanying drawing, some parts has omission, zooms in or out, but does not represent size or the entire infrastructure of actual product.

Embodiment 1:

nullThe structure of the rotary compressor of the present embodiment is as shown in Figure 1 to 9，The anterior end surface 160 including cylinder body 100 and being separately fixed at cylinder body 100 and the front end housing 200 of rear side end face 150 and back cylinder cover 300，The cylinder 140 that casing wall 130 is cylindrical surface is offered in described cylinder body 100、The air inlet 110 connected with cylinder 140 and vane slot 120，It is provided with deflection in the cylinder 140 of described cylinder body 100 and rolls rotary compression device P，Described deflection rolls rotary compression device P and includes main shaft 400、Rolling-rotor 500、Eccentricity orientation sleeve 600，Described main shaft 400 includes the front end axle 410 being sequentially connected with、Orientation slide-bar 420 and rear end axle 430，Described eccentricity orientation sleeve 600 is internal offers eccentricity orientation slide opening 610，Eccentricity orientation sleeve 600 passes through outside the orientation slide-bar 420 that its eccentricity orientation slide opening 610 is sleeved on main shaft 400，Eccentricity orientation sleeve 600 can reciprocatingly slide in the direction of the axial line O1 O1 that edge is perpendicular to main shaft 400 on the orientation slide-bar 420 of main shaft 400，And it is provided with elastic component between eccentricity orientation sleeve 600 and orientation slide-bar 420，Rolling-rotor 500 is sleeved on outside eccentricity orientation sleeve 600，The front end axle 410 of main shaft 400 is sleeved in the axis hole 210 of front end housing 200，The rear end axle 430 of main shaft 400 is sleeved in the axis hole 310 of back cylinder cover 300，The sliding blade apparatus R that can reciprocatingly slide in vane slot 120 it is provided with in vane slot 120 on described casing wall 130，The bottom of sliding blade apparatus R can be pressed on the cylindrical 540 of rolling-rotor 500 by sliding blade spring 900，Under main shaft 400 is driven by eccentricity orientation sleeve 600，Rolling-rotor 500 can be partial to and is pressed on the casing wall 130 of cylinder 140 rolling rotation，And in rolling rotation, in cylinder 140, form plenum chamber 142 and low-pressure chamber 141，Air inlet 110 is opened in the side of the corresponding low-pressure chamber 141 of casing wall 130，And as far as possible near the position of vane slot 120，The sidewall of plenum chamber 142 is provided with exhaust gear，Exhaust gear is located at the position near vane slot 120.

Such as Fig. 6, shown in 8, valve guide hole H is offered respectively on the inner side end 320 of above-mentioned back cylinder cover 300, the air discharge duct F in the external world is led to from valve guide hole H aperture, the oil supply tank G to cylinder 140 is led to from axis hole 310 aperture of back cylinder cover 300, in the end face outside 330 of back cylinder cover 300, the position of corresponding valve guide hole H offers the aperture less than valve guide hole H, the aperture, and the through hole K connected with valve guide hole H, preferably, through hole K is positioned at the bottom of the hole of valve guide hole H, through hole K runs through at the bottom of the hole of valve guide hole H and the end face outside 330 of back cylinder cover 300, the above of air discharge duct F is covered by the rear side end face 150 of cylinder body 100.Or, valve guide hole H is offered respectively on the inner side end 220 of described front end housing 200, the air discharge duct F in the external world is led to from valve guide hole H aperture, the oil supply tank G to cylinder 140 is led to from axis hole 210 aperture of front end housing 200, in the end face outside 230 of front end housing 200, the position of corresponding valve guide hole H offers the aperture less than valve guide hole H, the aperture, and the through hole K connected with valve guide hole H, preferably, through hole K is positioned at the bottom of the hole of valve guide hole H, through hole K runs through at the bottom of the hole of valve guide hole H and the end face outside 230 of front end housing 200, the above of air discharge duct F is covered by the anterior end surface 160 of cylinder body 100, it is provided with, in the described valve guide hole H offered on back cylinder cover 300 or front end housing 200, the valving W that can reciprocatingly slide in valve guide hole H.

nullSee Fig. 1、Fig. 2、Fig. 3、Fig. 4、Fig. 8，In the present embodiment，Above-mentioned elastic component is compression spring 1000，The peripheral shaft face of the orientation slide-bar 420 of above-mentioned main shaft 400 includes upside axial plane 421、Downside axial plane 423、Left side axial plane 422、Right side axial plane 424，Wherein，Left side axial plane 422 and right side axial plane 424 are all planes parallel to each other，Downside axial plane 423 offers at least one compression spring fixing hole 425，The periphery axial plane 620 of described eccentricity orientation sleeve 600 is cylindrical surface，Eccentricity orientation sleeve 600 is internal offers eccentricity orientation slide opening 610，The face, inner circumferential hole of described eccentricity orientation slide opening 610 includes upper-side hole face 611、Lower-side hole face 613、Left hole face 612、Right ports face 614，Wherein，Left hole face 612 and right ports face 614 are plane parallel to each other，And the central plane B-B between left hole face 612 and right ports face 614 deviates from the cylindrical center of circle O2 of eccentricity orientation sleeve 600，The distance of deviation is d，Plan range between the left hole face 612 of the eccentricity orientation slide opening 610 of described eccentricity orientation sleeve 600 and right ports face 614 is equal with the plan range between left side axial plane 422 and the right side axial plane 424 of the orientation slide-bar 420 of described main shaft 400，It is equal to t，The eccentricity orientation slide opening 610 of described eccentricity orientation sleeve 600 is sleeved on the orientation slide-bar 420 of described main shaft 400，For ensureing that the gap between gap and right ports face 614 and the right side axial plane 424 between left hole face 612 and left side axial plane 422 is zero，Central plane B-B between the left hole face 612 of eccentricity orientation slide opening 610 and right ports the face 614 and central plane A-A between left side axial plane 422 and the right side axial plane 424 of orientation slide-bar 420 overlaps，Corresponding and orientation slide-bar 420 upside axial plane 421 set in the upper-side hole face 611 of eccentricity orientation slide opening 610 is incorporated between upper-side hole face 611 and upside axial plane 421 and is reserved with the upper side clearance X that can make eccentricity orientation sleeve 600 relative orientation slide-bar 420 reciprocating movement，Corresponding and orientation slide-bar 420 downside axial plane 423 set in the lower-side hole face 613 of eccentricity orientation slide opening 610 is incorporated between lower-side hole face 613 and downside axial plane 423 and is reserved with underside gap Y that can make eccentricity orientation sleeve 600 relative orientation slide-bar 420 reciprocating movement，In the compression spring fixing hole 425 of the downside axial plane 423 that one end of compression spring 1000 is placed in orientation slide-bar 420，The other end of compression spring 1000 is pressed on the lower-side hole face 613 of the eccentricity orientation slide opening 610 of eccentricity orientation sleeve 600，By compression spring 1000, the lower-side hole face 613 of eccentricity orientation slide opening 610 is pressed，The left hole face 612 of eccentricity orientation slide opening 610 left side axial plane 422 that is corresponding and that orient slide-bar 420 overlap merge can on left side axial plane 422 parallel sliding，The right ports face 614 of eccentricity orientation slide opening 610 right side axial plane 424 that is corresponding and that orient slide-bar 420 overlap merge can on right side axial plane 424 parallel sliding，The inclined thickness portion 630 being sleeved on the eccentricity orientation sleeve 600 on the orientation slide-bar 420 of main shaft 400 is placed in left side axial plane 422 or right side axial plane 424 front to be tackled plenum chamber 142 pressure of orientation slide-bar 420、The most advanced side of rotatable phase (is placed in front to be tackled plenum chamber 142 pressure in the present embodiment、Right side axial plane 424 side that rotatable phase is the most advanced)，It is provided with the first rolling bearing assembly 1100 between inner circle 530 and the cylindrical 620 of eccentricity orientation sleeve 600 of rolling-rotor 500，Or the inner circle 530 of rolling-rotor 500 is directly sleeved on the cylindrical 620 of eccentricity orientation sleeve 600，It is main all kinds rolling bearing assembly that described first rolling bearing assembly 1100 includes loading radial force，The cylindrical 540 of the rolling-rotor 500 being sleeved on eccentricity orientation sleeve 600 and the center of circle O3 of the inner circle 530 and center of circle O2 of the cylindrical 620 of eccentricity orientation sleeve 600 overlap and deviate from the central plane A-A between the left side axial plane 422 and the right side axial plane 424 that orient slide-bar 420 of main shaft 400 and main shaft 400 axle center O1.

nullIt is sleeved on the eccentricity orientation sleeve 600 on the orientation slide-bar 420 of main shaft 400 and the rolling-rotor 500 being sleeved on eccentricity orientation sleeve 600，When revolving round the sun with main shaft 400，Can move back and forth along the central plane A-A direction between left side axial plane 422 and the right side axial plane 424 of orientation slide-bar 420，Cylindrical 620 center of circle O2 of eccentricity orientation sleeve 600 and the cylindrical 540 of rolling-rotor 500 and inner circle 530 center of circle O3 distance d relative to the central plane A-A between left side axial plane 422 and the right side axial plane 424 of orientation slide-bar 420 are to maintain constant、And distance e relative to main shaft 400 axle center O1 is relative variable，And eccentricity orientation sleeve 600 can not rotate relative to main shaft 400，And rolling-rotor 500 can be relative to main shaft 400 eccentric rotary，Can rotate with one heart relative to eccentricity orientation sleeve 600 again，The eccentricity orientation sleeve 600 being sleeved between orientation slide-bar 420 and the rolling-rotor 500 of main shaft 400 can be under the pressure effect of compression spring 1000，As shown in Figure 1，Producing between orientation slide-bar 420 and the eccentricity orientation slide opening 610 of eccentricity orientation sleeve 600 makes the cylindrical 540 of rolling-rotor 500 be pressed on the casing wall 130 of cylinder body 100 cylinder 140，And the prolongations straight line C-C of contact point Q that is pressed on the casing wall 130 of cylinder body 100 cylinder 140 of the cylindrical 540 crossing main shaft 400 axle center O1 and rolling-rotor 500 can and left side axial plane 422 and the right side axial plane 424 of orientation slide-bar 420 between central plane A-A be crossed to form the deflection pressure that angle is more than the deflection angle ω of 0 °，Rolling-rotor 500 deflection is made to be pressed on the casing wall 130 of cylinder body 100 cylinder 140，Deflection is pressed in the rolling-rotor 500 on the casing wall 130 of cylinder body 100 cylinder 140 when revolving round the sun with main shaft 400 together with eccentricity orientation sleeve 600，Can be partial to always be pressed on the casing wall 130 of cylinder body 100 cylinder 140 rolling rotation，And in rolling rotation, in cylinder 140, form plenum chamber 142 and low-pressure chamber 141.

nullSee Fig. 1、Fig. 9，The deflection rotated in a counter-clockwise direction rolls rotary compression device P as Working Examples，Eccentricity orientation sleeve 600 it is set with between the orientation slide-bar 420 and rolling-rotor 500 of main shaft 400、And after between orientation slide-bar 420 and eccentricity orientation sleeve 600, compression spring 1000 is set，Not only so that rolling-rotor 500 is before being compressed plenum chamber 142 in big half cycle impulse stroke，The pressure of the plenum chamber 142 acting on rolling-rotor 500 can be utilized，Make rolling-rotor 500 closely be pressed on casing wall 130 rolling to rotate and with low-pressure chamber 141, plenum chamber 142 is implemented more efficiently seal isolation，And，It is also possible that rolling-rotor 500 is in the last little half cycle impulse stroke being compressed plenum chamber 142，Utilize the deflection angle ω formed between rolling-rotor 500 and orientation slide-bar 420，Seal then become and rolling-rotor 500 is pushed away casing wall 130 from original beneficially rolling-rotor 500 because rolling-rotor 500 operating phase changes、It is unfavorable for that plenum chamber 142 pressure that rolling-rotor 500 seals resists，Make rolling-rotor 500 need to rely on little compression spring 1000 pressure and motion time produced centrifugal force，Just can continue to be pressed on casing wall 130 rolling to rotate，Until completing the compression to plenum chamber 142，And exceed design pressure once the compression pressure in plenum chamber 142，But rolling-rotor 500 can be forced automatically to leave casing wall 130，The ultra high pressure compression gas in plenum chamber 142 is enable to be discharged to low-pressure chamber 141 by the gap between rolling-rotor 500 and casing wall 130 and to carry out pressure release，And when compression travel closes to an end，More efficiently eliminate often because of lubricating oil in plenum chamber 142 excess accumulation and be easily caused the liquid hit phenomenon of the pressure jump of appearance，Compressor is enable to obtain overcompression safeguard protection in time.nullOn the premise of other conditions are constant，Distance d of cylindrical 620 center of circle O2 of the central plane B-B deviation eccentricity orientation sleeve 600 between left hole face 612 and the right ports face 614 of the eccentricity orientation slide opening 610 of the eccentricity orientation sleeve 600 being sleeved on orientation slide-bar 420 is the biggest，Deflection angle ω between the rolling-rotor 500 and the orientation slide-bar 420 that are sleeved on eccentricity orientation sleeve 600 is the biggest，Angle ω is the biggest for deflection，It is the biggest that compression spring 1000 makes rolling-rotor 500 oppress the pressure of casing wall 130 produced by between orientation slide-bar 420 and eccentricity orientation sleeve 600，More make rolling-rotor 500 can bear higher plenum chamber 142 pressure in the last little half cycle impulse stroke that plenum chamber 142 is compressed without deviating from casing wall 130，The compressed capability of compressor is the strongest，And can the pressure of relatively reduced compression spring 1000，To reduce radial load and the resistance of motion of deflection rolling rotary compression device P.In addition, owing to deflection rolls rotary compression device P, there is structures described above feature, therefore, it is not only advantageous to reduce the machining accuracy of compressor, production cost and the high efficiency of holding compressor life-time service, and, after first rolling bearing 1100 is set between rolling-rotor 500 and eccentricity orientation sleeve 600, also can reducing friction resistance further, improve the mechanical efficiency of compressor.

See Fig. 2, Fig. 8, it is provided with the second rolling bearing assembly 1200 between the hole wall of the front end axle 410 of the main shaft 400 of described deflection rolling rotary compression device P and the axis hole 210 of front end housing 200, or the front end axle 410 of main shaft 400 is directly sleeved in the axis hole 210 of front end housing 200；The second rolling bearing assembly 1200 it is provided with between the hole wall of the rear end axle 430 of main shaft 400 and the axis hole 310 of back cylinder cover 300, or the rear end axle 430 of main shaft 400 is directly sleeved in the axis hole 310 of back cylinder cover 300, respectively front end housing 200 and back cylinder cover 300 are fixed on anterior end surface 160 and the rear side end face 150 of cylinder body 100 by screw 1300 again, make deflection roll rotary compression device P to be fixed in cylinder body 100 cylinder 140, described second rolling bearing assembly 1200 is all kinds rolling bearing assembly to load radial force, to load all kinds rolling bearing assembly of axial force, any one of all kinds rolling bearing assembly of radial force and axial force can be loaded simultaneously.After the front end axle 410 and rear end axle 430 being partial to the main shaft 400 rolling rotary compression device P is set with the second rolling bearing assembly 1200, so that it may reduce compressor mechanical friction resistance operationally further, improve work efficiency.

See Fig. 1, Fig. 5, Fig. 8, described sliding blade apparatus R includes slide plate 700, first slide plate seals 720, second slide plate seals 740, sliding blade apparatus R is arranged in vane slot 120, the lower end of slide plate 700 can be stretched in the cylinder 140 of cylinder body 100, and slide plate 700 lower end is pressed on the cylindrical 540 of rolling-rotor 500, the sidewall of described slide plate 700 offers the first slide plate seal groove 710 and the second slide plate seal groove 730, described first slide plate seal groove 710 is offered around four side end faces of slide plate 700 at the middle section position of slide plate 700, and first the set position of slide plate seal groove 710 be positioned at vane slot 120.Described second slide plate seal groove 730 is offered in the lower section of the first slide plate seal groove 710, it is i.e. that the set position of the second slide plate seal groove 730 is located closer to rolling-rotor 500 set by the first slide plate seal groove 710, described first slide plate seals the shape of 720 and the mating shapes of the first slide plate seal groove 710, first slide plate seals 720 and is inlaid in the first slide plate seal groove 710, and the first slide plate seals 720 between slide plate 700 and vane slot 120 cell wall；nullDescribed second slide plate seal groove 730 includes Part I the second slide plate seal groove 731 and Part II the second slide plate seal groove 732，Part I the second slide plate seal groove 731 is offered around four side end faces of slide plate 700，And the set position of Part I the second slide plate seal groove 731 is positioned at vane slot 120，Part II the second slide plate seal groove 732 respectively on slide plate 700 along the centre position of two opposite outer end face of main shaft 400 axis direction、Start to extending the position, lower surface offered near slide plate 700 near rolling-rotor 500 direction from Part I the second slide plate seal groove 731，Preferably Part II the second slide plate seal groove 732 is perpendicular to Part I the second slide plate seal groove 731，Described second slide plate seals 740 and includes that Part I the second slide plate seals 741 and is connected to the centre position in 741 liang of outsides of Part I the second slide plate sealing、Part II the second slide plate extended downwards seals 742，Second slide plate seals Part I the second slide plate sealing 741 of 740 and is inlaid in Part I the second slide plate seal groove 731 of the second slide plate seal groove 730，Second slide plate seals Part II the second slide plate sealing 742 of 740 and is inlaid in respectively in Part II the second slide plate seal groove 732 in second 730 liang of outsides of slide plate seal groove，It is i.e. that described second slide plate seals the shape of 740 and the mating shapes of the second slide plate seal groove 730，Part II the second slide plate in the anterior end surface of slide plate 700 seals 742 and extend between the anterior end surface being partially disposed in slide plate 700 in the cylinder 140 of cylinder body 100 and the inner side end 220 of front end housing 200，What Part II the second slide plate sealing 742 at the rear side end face of slide plate 700 extend in the cylinder 140 of cylinder body 100 is partially disposed between the rear side end face of slide plate 700 and the inner side end 320 of back cylinder cover 300；First slide plate sealing 720 and the second slide plate seal Part I the second slide plate sealing 741 of 740 and seal the gap between slide plate 700 and vane slot 120 cell wall and the gap between the inner side end 220 of slide plate 700 and front end housing 200 and the inner side end 320 of back cylinder cover 300 simultaneously, realize in body and outer between seal isolation, second slide plate seals Part II the second slide plate sealing 742 of 740 and seals the gap between inner side end 220 and the inner side end 320 of back cylinder cover 300 of slide plate 700 and front end housing 200, realize the seal isolation between plenum chamber 142 and low-pressure chamber 141.Described first slide plate sealing 720 and the second slide plate seal 740 and are constituted by elastic wear-resisting elastomeric material, the elastic force that the lower end of described slide plate 700 is applied by sliding blade spring 900, on the cylindrical 540 of the rolling-rotor 500 being pressed in deflection rolling rotary compression device P.It is embedded with the first slide plate sealing 720 and the slide plate of the second slide plate sealing 740, just so that the gases at high pressure that compressor operationally can effectively reduce in plenum chamber 142 leak to low-pressure chamber 141, and can effectively stop extra-organismal gases at high pressure to be back to inside compressor after compressor quits work, thus reduce the work efficiency loss of compressor.

See Fig. 1, Fig. 2, Fig. 6, Fig. 7, Fig. 8, described valving W includes valve 800 and valve spring 1400, periphery wall 830 surface of described valve 800 is exterior cylindrical surfaces, rear side end face offers valve spring fixing hole 810, in the valve guide hole H that described valve 800 movable set is offered on back cylinder cover 300 or front end housing 200, valve 800 periphery wall 830 coordinates with the hole wall of valve guide hole H, the anterior end surface 820 of valve 800 as sealing surface to the end face (the rear side end face 150 of cylinder body 100 or anterior end surface 160) of cylinder body 100, it is i.e. when valve guide hole H is opened on back cylinder cover 300, then the anterior end surface 820 of valve 800 is to the rear side end face 150 of cylinder body 100；nullWhen valve guide hole H is opened on front end housing 200，Then the anterior end surface 820 of valve 800 is to the anterior end surface 160 of cylinder body 100，Movable set valve 800 in valve guide hole H，Can in valve guide hole H reciprocating movement，Described valve spring 1400 is sleeved on valve 800 in the valve spring fixing hole 810 that rear side end face is offered，The anterior end surface 820 making valve 800 can be pressed on the end face of cylinder body 100 and be sealed off with air discharge duct F by cylinder 140，And after the high-pressure gas pressure in the plenum chamber 142 in cylinder 140 reaches necessarily (overcoming the elastic force of valve spring 1400 and the gas pressure of engine body exterior)，The anterior end surface 820 of valve 800 is pushed away the end face of cylinder body 100 by high pressure gas physical ability，High pressure gas physical ability is made to discharge from the air discharge duct F connected with the aperture of valve guide hole H，After aerofluxus completes，Valve 800 can reset by the gas pressure of the elastic force of valve spring 1400 and engine body exterior again，The anterior end surface 820 making valve 800 is the most again pressed in the end face of cylinder body 100 and is sealed off with air discharge duct F by cylinder 140.Rear side end face 150 or the anterior end surface 160 of described cylinder body 100 offer pressure storing cavity M in the position corresponding with the anterior end surface 820 of valve 800, or pressure storing cavity M is opened in the anterior end surface 820 of valve 800, pressure storing cavity M can increase pressure initiation area and the leaving area of the gases at high pressure in the plenum chamber 142 of cylinder 140 relatively, being conducive to the gases at high pressure in cylinder 140 plenum chamber 142 to gather the beginning thrust of Open valve 800, the gases at high pressure aerofluxus in valve 800 successfully pushing away cylinder body 100 and enabling plenum chamber 142 is more smoothly.Through hole K is being offered at the bottom of the hole of valve guide hole H and between the end face outside 330 of back cylinder cover 300 or the end face outside 230 of front end housing 200, the cavity formed between at the bottom of the hole of end face and valve guide hole H can be made on rear side of valve 800 to breathe freely, avoid this cavity may affect the motility of valve 800 reciprocating movement because forming high pressure shape or vacuum shape annular seal space, aerofluxus is impacted, and also can be utilized the gas pressure of outside that the anterior end surface 820 of valve 800 is closely pressed on the end face of cylinder body 100 by through hole K, improve the air-tightness between plenum chamber 142 and air discharge duct F.Exhaust gear of the present utility model only has pressure storing cavity M size due to clearance volume, the most just can improve the volumetric efficiency of compressor further.

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 8, two end face outside of described rolling-rotor 500 offer the rolling-rotor end face seal groove 510 of annular respectively in the position near its cylindrical 540, it is embedded with rolling-rotor end face sealing ring 520 in described rolling-rotor end face seal groove 510, the shape of described rolling-rotor end face sealing ring 520 and the mating shapes of rolling-rotor end face seal groove 510, at the rolling-rotor end face sealing ring 520 of rolling-rotor 500 anterior end surface between the inner side end 220 of rolling-rotor 500 anterior end surface and drive end bearing bracket 200, on rear side of rolling-rotor 500 between the inner side end 320 of rolling-rotor end face sealing ring 520 end face and rear end cap 300 on rear side of rolling-rotor 500 of end face.Described rolling-rotor end face sealing ring 520 is made up of elastic wear-resisting elastomeric material.It is embedded with the rolling-rotor 500 of rolling-rotor end face sealing ring 520, it becomes possible to more efficiently solve axial seal problem, improve the air-tightness of compressor.Additionally, rolling-rotor end face sealing ring 520 is positioned close to the position of rolling-rotor cylindrical 540, it is also possible to reduce the gases at high pressure surplus being stored in plenum chamber 142 after aerofluxus completes, improve the air compression efficiency of compressor.

nullSee Fig. 1、Fig. 7、Fig. 8，The oil supply tank G to cylinder 140 is led in axis hole 310 aperture that corresponding low-pressure chamber 141 side offers from back cylinder cover 300 on the inner side end 320 of back cylinder cover 300，Or the oil supply tank G to cylinder 140 is led in axis hole 210 aperture that corresponding low-pressure chamber 141 side offers from front end housing 200 on the inner side end 220 of front end housing 200，Oil supply gallery is offered in main shaft 400，Oil supply tank G connects with the oil supply gallery in main shaft 400，Oil supply gallery in described main shaft 400 includes the main oil-hole 440 axially offered along main shaft 400 and the oilhole 450 radially offered along main shaft 400，The position that oilhole 450 is propped up in correspondence in the outside of described main shaft 400 offers withdrawing oil groove 401，Prop up oilhole 450 to connect with withdrawing oil groove 401，Oil supply tank G can be connected with main oil-hole 440 by an oilhole 450 and withdrawing oil groove 401.During compressor operating, withdrawing oil groove 401 can make an oilhole 450 be to keep connecting with oil supply tank G always, after the inner side end 320 of back cylinder cover 300 or the inner side end 220 of front end housing 200 have offered oil supply tank G, lubricating oil just can directly enter from the main oil-hole 440 of main shaft 400, it is injected into cylinder 140 from oil supply tank G through an oilhole 450 again, thus more ensure the lubricating oil supply needed for compressor internal lubrication and sealing, improve the lubrication within compressor and air-proof condition further so that the durability of compressor and air-tightness are better.

Rotary compressor of the present utility model has that sealing is reliable, and air-tightness is good, compressed capability is strong, work efficiency is high, technique simply, production cost is low, can keep the advantage such as high efficiency of life-time service.

Embodiment 2:

nullSee Figure 10，The present embodiment is used placed below for front end housing 200、Back cylinder cover 300 is placed in the vertical structure scheme of top，Bring bigger axial load can to front end housing 200 placed below in view of vertical structure scheme，If it is that in the axis hole 210 of front end housing 200 or direct movable set is in the axis hole 210 of front end housing 200 for the second main rolling bearing assembly 1200 movable set that the front end axle 410 of the main shaft 400 in deflection rolling rotary compression device P is only through loading radial force，Will make between orientation slide-bar 420 and the inner side end 220 of front end housing 200 of main shaft 400 because contact area is little、Pressure is big and produces bigger friction，It is unfavorable for that compressor the most normally works，For this，Arrange to load axial force between the front end axle 410 and the axis hole 210 of front end housing 200 of main shaft 400 or between orientation slide-bar 420 and the inner side end 220 of front end housing 200 of main shaft 400 to be main or the second rolling bearing assembly 1200 of radial force and axial force can be loaded simultaneously，Just can be by above-mentioned Resolving probiems.

Claims (7)

1. null1. the rotary compressor that a volumetric efficiency is high，The anterior end surface (160) including cylinder body (100) and being separately fixed at cylinder body (100) and the front end housing (200) of rear side end face (150) and back cylinder cover (300)，The cylinder (140) that casing wall (130) is cylindrical surface is offered in described cylinder body (100)，Rolling rotary compression device (P) it is provided with in the cylinder (140) of described cylinder body (100)，Described rolling rotary compression device (P) includes main shaft (400) and rolling-rotor (500)，Described main shaft (400) includes the front end axle (410) being sequentially connected with、Orientation slide-bar (420) and rear end axle (430)，Orientation slide-bar (420) outside that described rolling-rotor (500) is sleeved on main shaft (400)，The front end axle (410) of main shaft (400) is sleeved in the axis hole (210) of front end housing (200)，The rear end axle (430) of main shaft (400) is sleeved in the axis hole (310) of back cylinder cover (300)，Described rolling-rotor (500) can be pressed on the casing wall (130) of cylinder (140) and roll rotation，And in rolling rotation, in cylinder (140), form plenum chamber (142) and low-pressure chamber (141)，And the sidewall of plenum chamber (142) is provided with exhaust gear，Low-pressure chamber (141) offers air inlet (110)，It is characterized in that: described exhaust gear includes being opened in the inner side end (320) of back cylinder cover (300) valve guide hole (H) above or on the inner side end (220) of front end housing (200)、The air discharge duct (F) leading to the external world from valve guide hole (H) aperture and the valving (W) being arranged in valve guide hole (H)，And the end face of cylinder body (100) is covered in above air discharge duct (F)，Described valving (W) includes valve (800) and valve spring (1400)，The periphery wall (830) of valve (800) coordinates with the hole wall of valve guide hole (H)，And valve (800) can in valve guide hole (H) reciprocating movement，Between valve spring (1400) is arranged at the bottom of the hole of valve (800) and valve guide hole (H)，The anterior end surface (820) making valve (800) can be pressed in the end face of cylinder body (100) and be sealed off with air discharge duct (F) by cylinder (140).
2. The rotary compressor that volumetric efficiency the most according to claim 1 is high, it is characterised in that: the end face of described cylinder body (100) offers pressure storing cavity (M) in the position corresponding with the anterior end surface of valve (800) (820).
3. The rotary compressor that volumetric efficiency the most according to claim 1 is high, it is characterised in that: the anterior end surface (820) of described valve (800) offers pressure storing cavity (M).
4. The rotary compressor that volumetric efficiency the most according to claim 1 is high, it is characterised in that: the wall portion of described valve guide hole (H) offers through hole (K).
5. The rotary compressor that volumetric efficiency the most according to claim 4 is high, it is characterised in that: described through hole (K) is located at the bottom of the hole of valve guide hole (H).
6. The rotary compressor that volumetric efficiency the most according to claim 1 is high, it is characterized in that: the rear side end face of described valve (800) offers valve spring fixing hole (810), one end of valve spring (1400) is sleeved in valve spring fixing hole (810), and the other end of valve spring (1400) is pressed at the bottom of the hole of valve guide hole (H).
7. null7. according to the rotary compressor that the volumetric efficiency described in any one of claim 1 to 6 is high，It is characterized in that: described rolling rotary compression device (P) rolls rotary compression device for deflection，Described rolling rotary compression device (P) also includes eccentricity orientation sleeve (600)，Described eccentricity orientation sleeve (600) is internal offers eccentricity orientation slide opening (610)，Orientation slide-bar (420) outside that eccentricity orientation sleeve (600) is sleeved on main shaft (400) by its eccentricity orientation slide opening (610)，Eccentricity orientation sleeve (600) is positioned between the orientation slide-bar (420) on rolling-rotor (500) and main shaft (400)，And eccentricity orientation sleeve (600) can reciprocatingly slide in the upper direction along the axial line (O1 O1) being perpendicular to main shaft (400) of the orientation slide-bar (420) of main shaft (400)，It is provided with compression spring (1000) between eccentricity orientation sleeve (600) and orientation slide-bar (420).