CN105736378B - A kind of rotary compressor of good seal performance - Google Patents

A kind of rotary compressor of good seal performance Download PDF

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Publication number
CN105736378B
CN105736378B CN201610247048.1A CN201610247048A CN105736378B CN 105736378 B CN105736378 B CN 105736378B CN 201610247048 A CN201610247048 A CN 201610247048A CN 105736378 B CN105736378 B CN 105736378B
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slide plate
cylinder
slide
seal groove
rolling
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CN105736378A (en
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彭力丰
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彭力丰
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008Hermetic pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00

Abstract

The invention discloses a kind of rotary compressors of good seal performance,The rolling-rotor that its main shaft drives, which can be pressed on the casing wall of cylinder, rolls rotation,The casing wall of cylinder offers sliding vane groove,The sliding blade apparatus that can be reciprocatingly slided in sliding vane groove is provided in sliding vane groove,The sliding blade apparatus includes slide plate,Second slide plate seals,Slide plate is mounted in sliding vane groove,Slide plate stretches into one end in the cylinder of cylinder body and is pressed in the outer circle of rolling-rotor,The side wall of slide plate opens up the second slide plate seal groove,Second slide plate seal groove includes first,Two part the second slide plate seal grooves,First part's the second slide plate seal groove is opened up around four side end faces of slide plate,The second slide plate of second part seal groove is respectively in the two opposite outer end face in slide plate upper edge main-shaft axis direction,It is opened up to close to the extension of the direction of rolling-rotor to the endface position close to slide plate since first part's the second slide plate seal groove,The shape and the shape of the second slide plate seal groove of second slide plate sealing match,The sealing of second slide plate is inlaid in the second slide plate seal groove.Air-tightness of the present invention is good, can reduce working efficiency loss.

Description

A kind of rotary compressor of good seal performance
Technical field
The present invention relates to compressor field more particularly to a kind of rotary compressors of good seal performance, belong to rotary The improved technology of compressor.
Background technology
Traditional rotary compressor, although having many advantages, such as that simple and compact for structure, parts are few, there is also following Problem:
1. the sealing problem of rolling-rotor.By the radial direction constituted between rolling-rotor outer circle and cylinder body cylinder casing wall Sealing is the not equidistant clearance seal between two arc surfaces that radius does not wait, and air-proof condition is natively poor, and seals row Journey is again long, therefore, for such sealing can reach the seal request of compressor, in addition to by rolling-rotor outer circle with Clearance control between cylinder body cylinder casing wall to a very small extent except, it is also necessary to there is more lubricating oil to fill up gap, no But technical difficulty is big, and sealing reliability is poor.Although two end face outside of rolling-rotor and drive end bearing bracket inner side end and rear end cap The axial seal constituted between inner side end is all the equidistant clearance seal between plane and plane, and gap is relatively Be easy to get control and advantageously form effectively sealing oil reservoir, but due to lean on by these seal clearances to compressor inside its The lubrication and sealing that he seals provide lubricating oil, therefore, the air-tightness that these are sealed just are made to be restricted due to there are gap.
2. the sealing problem of slide plate.Due between two groove face of two inner side end of slide plate and cylinder body sliding vane groove and outside slide plate two Sealing between side end face and front end housing inner side end and back cylinder cover inner side end is all clearance seal, therefore, allows for compressing When machine works, the indoor high pressure gas of high pressure gas can be leaked to low-pressure chamber, and after being stopped, extra-organismal high pressure gas is again The inside that compressor can be flowed back into, to make compressor operating efficiency decline.
3. the volumetric efficiency issues of exhaust gear.Since the clearance volume of exhaust gear is bigger, compressor Volumetric efficiency compares relatively low.
4. the production cost and efficiency Preserving problems of compressor.All it is clearance seal since many places of compressor seal, Make such sealing that can play the role of sealing it is necessary to have very high machining accuracy and assembly precision, therefore, not only produce It is of high cost, and cannot keep the high efficiency of compressor long-time service.
Invention content
The purpose of the present invention is to overcome above-mentioned at least one deficiency in the prior art, provide a kind of sealing performance Rotary compressor good, that working efficiency loss can be reduced.
In order to achieve the above object, the technical solution that the present invention takes:A kind of rotary compressor of good seal performance, packet It includes cylinder body and is separately fixed at the front end face of cylinder body and the front end housing of back end surface and back cylinder cover, cylinder is offered in the cylinder body Wall is the cylinder of cylindrical surface, and the casing wall of cylinder offers sliding vane groove, and being provided in sliding vane groove can back and forth slide in sliding vane groove Dynamic sliding blade apparatus is provided with rolling rotary compression device, the rolling rotary compression device in the cylinder of the cylinder body Including main shaft and rolling-rotor, the main shaft includes sequentially connected front end axis, orientation slide-bar and rear axle, and described roll turns Sub-set is on the outside of the orientation slide-bar on main shaft, and the front-end shaft sleeve of main shaft is in the axis hole of front end housing, the rear end axle sleeve of main shaft In the axis hole of back cylinder cover, the rolling-rotor, which can be pressed on the casing wall of cylinder, rolls rotation, and in gas in rolling rotation Plenum chamber and low-pressure chamber being formed in cylinder, and the side wall of plenum chamber is equipped with exhaust gear, low-pressure chamber offers air inlet, The sliding blade apparatus includes slide plate, the sealing of the second slide plate, and slide plate is mounted in sliding vane groove, and one end of slide plate can stretch into the gas of cylinder body In cylinder, and slide plate stretches into one end in the cylinder of cylinder body and is pressed in the outer circle of rolling-rotor, and the side wall of the slide plate offers second Slide plate seal groove, the second slide plate seal groove include first part's the second slide plate seal groove and the sealing of the second slide plate of second part Slot, first part's the second slide plate seal groove is opened up around four side end faces of slide plate, and the institute of first part's the second slide plate seal groove If position is located in sliding vane groove, the second slide plate of second part seal groove is respectively outside opposite the two of slide plate upper edge main-shaft axis direction Side end face, the direction extension to close rolling-rotor since first part's the second slide plate seal groove are opened up to close to the end of slide plate The shape of face position, the second slide plate sealing matches with the second slide plate seal groove, and the sealing of the second slide plate is inlaid in the second cunning In piece seal groove.
In said program, opens up first part's the second slide plate seal groove in the side of slide plate and the second slide plate of second part is close Sealing groove, and it is embedded with matched second in first part's the second slide plate seal groove and second part the second slide plate seal groove Slide plate seals, wherein first part's the second slide plate sealing being inlaid in first part's the second slide plate seal groove can prevent machine High pressure gas outside body passes through the gap between gap between sliding vane groove and slide plate and slide plate and front end housing and back cylinder cover It flows back to internal body, and the second slide plate of the second part sealing being inlaid in second part the second slide plate seal groove can reduce height The high pressure gas of plenum chamber is realized by the clearance backflow between slide plate and front end housing and back cylinder cover to low-pressure chamber to high pressure gas Seal isolation between room and low-pressure chamber, so as to reduce the working efficiency loss of compressor
It is airtight between slide plate and front end housing and back cylinder cover between slide plate and sliding vane groove in order to further increase and reinforce Property, above-mentioned sliding blade apparatus further includes the sealing of the first slide plate, and the side wall of the slide plate offers the first slide plate seal groove, the first slide plate Seal groove is opened up around four side end faces of slide plate, and the set position of the first slide plate seal groove is located in sliding vane groove, and second slides The set position of piece seal groove than being located closer to rolling-rotor set by the first slide plate seal groove, the first slide plate sealing Shape and the shape of the first slide plate seal groove match, and the first slide plate sealing is inlaid in the first slide plate seal groove.
In order to keep the sealing effect between plenum chamber and low-pressure chamber more preferable and easy to process, above-mentioned second slide plate sealing First part second slide plate seal groove of second part the second slide plate seal groove of slot perpendicular to the second slide plate seal groove.
Further, above-mentioned rolling rotary compression device is to be biased to roll rotary compression device, rolls rotary pressure Compression apparatus further includes eccentricity orientation set axis, offers eccentricity orientation slide opening inside the eccentricity orientation set axis, eccentricity orientation covers axis It is sleeved on the outside of the orientation slide-bar on main shaft by its eccentricity orientation slide opening, eccentricity orientation covers axle position on rolling-rotor and main shaft Orientation slide-bar between, and eccentricity orientation set axis can main shaft orientation slide-bar upper edge it is past perpendicular to the direction of the axial line of main shaft Multiple sliding covers in eccentricity orientation and is additionally provided with compression spring between axis and orientation slide-bar so that rolling-rotor can be biased to be pressed in gas Rotation is rolled on the casing wall of cylinder, is biased to roll the rolling-rotor of rotation on the casing wall for being pressed in cylinder, even if in plenum chamber pressure In the case of constantly raised, outer circle can all be kept being in close contact with the casing wall of cylinder always, to eliminate the outer of rolling-rotor Gap between circle and the casing wall of cylinder is improved the apex seal performance between rolling-rotor outer circle and cylinder casing wall and is efficiently protected End of certificate is at entire compression process.
Compared with prior art, the invention has the advantages that:
1. air-tightness is good, compressed capability is strong, and work efficiency is high.
2. simple for process, production cost is low.
3. the high efficiency being used for a long time can be kept.
Description of the drawings
Fig. 1 is the radial structure schematic diagram inside the compressor of the embodiment of the present invention 1.
Fig. 2 is the axial arrangement schematic diagram inside the compressor of the embodiment of the present invention 1.
Fig. 3 is that the deviation of the embodiment of the present invention 1 rolls the radial structure decomposition diagram of rotary compression device.
Fig. 4 is that the deviation of the embodiment of the present invention 1 rolls the stereochemical structure decomposing schematic representation of rotary compression device.
Fig. 5 is the stereochemical structure decomposing schematic representation of the sliding blade apparatus of the embodiment of the present invention 1.
Fig. 6 is the axial arrangement decomposition diagram of the exhaust gear of the embodiment of the present invention 1, cylinder body and back cylinder cover.
Fig. 7 is the stereochemical structure decomposing schematic representation of the exhaust gear and back cylinder cover of the embodiment of the present invention 1.
Fig. 8 is the stereochemical structure decomposing schematic representation of the compressor of the embodiment of the present invention 1.
Fig. 9 is the cycle operation principle schematic of the present invention.
Figure 10 is the axial arrangement schematic diagram of the vertical structure of the compressor of the embodiment of the present invention 2.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings.Attached drawing only for illustration, should not be understood as to this The limitation of patent.
For the more succinct the present embodiment that illustrates, certain in attached drawing or explanation well known to a person skilled in the art but with this The incoherent parts of main contents of creation can be omitted.In addition for ease of stating, certain parts have province in attached drawing Slightly, it zooms in or out, but does not represent the size or entire infrastructure of actual product.
Embodiment 1:
The structure of the rotary compressor of the present embodiment is as shown in Figure 1 to 9, including cylinder body 100 and is separately fixed at cylinder body 100 front end face 160 and the front end housing 200 of back end surface 150 and back cylinder cover 300 offer casing wall in the cylinder body 100 130 be the cylinder 140 of cylindrical surface, the air inlet 110 being connected to cylinder 140 and sliding vane groove 120, the gas of the cylinder body 100 Be provided with deviation in cylinder 140 and roll rotary compression device P, the deviations rolling rotary compression device P include main shaft 400, Rolling-rotor 500, eccentricity orientation cover axis 600, and the main shaft 400 includes sequentially connected front end axis 410, orientation slide-bar 420 With rear axle 430, the eccentricity orientation, which covers, offers eccentricity orientation slide opening 610 inside axis 600, eccentricity orientation set axis 600 passes through Its eccentricity orientation slide opening 610 is sleeved on 420 outside of orientation slide-bar on main shaft 400, and eccentricity orientation covers axis 600 can be in main shaft 400 420 upper edge of orientation slide-bar reciprocatingly slide perpendicular to the direction of axial line O1-O1 of main shaft 400, and eccentricity orientation cover axis 600 Elastic component is equipped between orientation slide-bar 420, rolling-rotor 500 is sleeved on the outside of eccentricity orientation set axis 600, before main shaft 400 End axis 410 is sleeved in the axis hole 210 of front end housing 200, and the rear axle 430 of main shaft 400 is sleeved on the axis hole 310 of back cylinder cover 300 It is interior, the sliding blade apparatus R that can be reciprocatingly slided in sliding vane groove 120, slide plate dress are provided in the sliding vane groove 120 on the casing wall 130 Setting the lower end of R can be pressed in by sliding blade spring 900 in the outer circle 540 of rolling-rotor 500, pass through eccentricity orientation in main shaft 400 It covers under the drive of axis 600, rolling-rotor 500 can be biased to roll rotation on the casing wall 130 for being pressed in cylinder 140, and in rolling rotates Plenum chamber 142 and low-pressure chamber 141 are formed in cylinder 140, air inlet 110 is opened in casing wall 130 and corresponds to low-pressure chamber 141 Side, and as close to the position of sliding vane groove 120, the side wall of plenum chamber 142 is equipped with exhaust gear, and exhaust gear is located at Close to the position of sliding vane groove 120.
As shown in Fig. 6,8, valve guide hole H is offered on the inner side end 320 of above-mentioned back cylinder cover 300 respectively, is led from valve The hole apertures H are led to extraneous air discharge duct F, are led to from 310 aperture of axis hole of back cylinder cover 300 to the oil supply tank G of cylinder 140, rear The position that valve guide hole H is corresponded in the end face outside 330 of cylinder cap 300 offers aperture of the aperture less than valve guide hole H and and valve The through-hole K of door guide hole H connection, it is preferred that through-hole K is located at the bottom hole of valve guide hole H, through-hole K through valve guide hole H bottom hole with The end face outside 330 of back cylinder cover 300, the upper surface of air discharge duct F are covered by the back end surface 150 of cylinder body 100.Alternatively, the preceding cylinder Valve guide hole H is offered on the inner side end 220 of lid 200 respectively, leads to extraneous air discharge duct F, the past from the apertures valve guide hole H 210 aperture of axis hole of cylinder cap 200 is led to the oil supply tank G of cylinder 140, and valve is corresponded in the end face outside 230 of front end housing 200 The through-hole K that the position of guide hole H offers aperture of the aperture less than valve guide hole H and is connected to valve guide hole H, it is preferred that through-hole K is located at the bottom hole of valve guide hole H, and through-hole K is through the end face outside 230 of the bottom hole and front end housing 200 of valve guide hole H, air discharge duct F The upper surface of covered by the front end face 160 of cylinder body 100, the valve guide hole opened up on back cylinder cover 300 or front end housing 200 The valving W that can be reciprocatingly slided in valve guide hole H is provided in H.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 8, in the present embodiment, above-mentioned elastic component is compression spring 1000, above-mentioned main shaft 400 Orientation slide-bar 420 peripheral shaft face include 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, and downside axial plane 423 offers at least one pressure The periphery axial plane 620 of spring fixed hole 425, the eccentricity orientation set axis 600 is cylindrical surface, and eccentricity orientation covers in axis 600 Portion offers eccentricity orientation slide opening 610, and the inner circumferential hole face of the eccentricity orientation slide opening 610 includes upside hole face 611, lower-side hole Face 613, left side hole face 612, right side hole face 614, wherein left side hole face 612 and right side hole face 614 are plane parallel to each other, And the central plane B-B between left side hole face 612 and right side hole face 614 deviates from the outer circle center of circle of eccentricity orientation set axis 600 The distance of O2, deviation are d, the left side hole face 612 and right side hole face of the eccentricity orientation slide opening 610 of the eccentricity orientation set axis 600 It is flat between the left side axial plane 422 and right side axial plane 424 of the orientation slide-bar 420 of plan range and the main shaft 400 between 614 Identity distance is equal to t from equal, and the eccentricity orientation slide opening 610 of the eccentricity orientation set axis 600 is sleeved on determining for the main shaft 400 To on slide-bar 420, the gap and right side hole face 614 between guarantee left side hole face 612 and left side axial plane 422 and right side axial plane Gap between 424 is zero, the central plane between the left side hole face 612 and right side hole face 614 of eccentricity orientation slide opening 610 Central plane A-A between B-B and the left side axial plane 422 and right side axial plane 424 of orientation slide-bar 420 is overlapped, and eccentricity orientation is slided The upside hole face 611 in hole 610, which is corresponded to, to be merged with 421 sets of the upside axial plane of orientation slide-bar 420 in upside hole face 611 and upside axial plane Being reserved between 421 can be such that the upper side clearance X of 600 relative orientation slide-bar of eccentricity orientation set axis, 420 reciprocating movement, eccentricity orientation slides The downside hole face 613 in hole 610, which is corresponded to, to be merged with 423 sets of the downside axial plane of orientation slide-bar 420 in downside hole face 613 and downside axial plane The underside gap Y of 600 relative orientation slide-bar of eccentricity orientation set axis, 420 reciprocating movement, compression spring can be made by being reserved between 423 1000 one end be placed in orientation slide-bar 420 downside axial plane 423 compression spring mounting hole 425 in, compression spring 1000 it is another One end is pressed on the downside hole face 613 of the eccentricity orientation slide opening 610 of eccentricity orientation set axis 600, by compression spring 1000 to inclined The downside hole face 613 of heart orientation slide opening 610 presses, and the left side hole face 612 of eccentricity orientation slide opening 610 corresponds to and orientation slide-bar 420 422 sets of left side axial plane merge can on left side axial plane 422 parallel sliding, the right side hole face 614 of eccentricity orientation slide opening 610 It is corresponding merge with 424 sets of right side axial plane that is orienting slide-bar 420 can on right side axial plane 424 parallel sliding, be sleeved on main shaft 400 The inclined thickness portion 630 of eccentricity orientation set axis 600 on orientation slide-bar 420 is placed in left side axial plane 422 or the right side of orientation slide-bar 420 Axial plane 424 will cope with the relatively advanced side of front 142 pressure of plenum chamber, rotatable phase(Being placed in the present embodiment will cope with Relatively advanced 424 side of right side axial plane of 142 pressure of front plenum chamber, rotatable phase), the inner circle 530 of rolling-rotor 500 with The inner circle 530 of the first rolling bearing assembly 1100 or rolling-rotor 500 is equipped between the outer circle 620 of eccentricity orientation set axis 600 It is directly sleeved in the outer circle 620 of eccentricity orientation set axis 600, first rolling bearing assembly 1100 includes to load radial load Based on various types rolling bearing assembly, the outer circle 540 of rolling-rotor 500 being sleeved on eccentricity orientation set axis 600 and interior The center of circle O2 for the outer circle 620 that the center of circle O3 of circle 530 covers axis 600 with eccentricity orientation is overlapped and is deviated from the orientation slide-bar of main shaft 400 400 axle center O1 of central plane A-A and main shaft between 420 left side axial plane 422 and right side axial plane 424.
The eccentricity orientation set axis 600 being sleeved on the orientation slide-bar 420 of main shaft 400 covers axis 600 with eccentricity orientation is sleeved on On rolling-rotor 500 can be along left side axial plane 422 and the right side axial plane 424 of orientation slide-bar 420 when revolving round the sun with main shaft 400 Between the directions central plane A-A move back and forth, eccentricity orientation covers outer circle 620 center of circle O2 and rolling-rotor 500 of axis 600 The center of outer circle 540 and 530 center of circle O3 of inner circle between the left side axial plane 422 and right side axial plane 424 of orientation slide-bar 420 is flat It is relative variable that the distance d of face A-A, which is to maintain constant and relative to 400 axle center O1 of main shaft distance e, and eccentricity orientation Set axis 600 cannot rotate relative to main shaft 400, and rolling-rotor 500 can relative to 400 eccentric rotary of main shaft and relatively It is rotated with one heart in eccentricity orientation set axis 600, the bias being sleeved between the orientation slide-bar 420 of main shaft 400 and rolling-rotor 500 is fixed It can be under the effect of the pressure of compression spring 1000, as shown in Figure 1, covering axis in orientation slide-bar 420 and eccentricity orientation to set axis 600 The casing wall 130 for making the outer circle 540 of rolling-rotor 500 be pressed in 100 cylinder 140 of cylinder body is generated between 600 eccentricity orientation slide opening 610 On, and cross 400 axle center O1 of main shaft and be pressed in the contact on the casing wall 130 of 100 cylinder 140 of cylinder body with the outer circle 540 of rolling-rotor 500 The central plane A-A for extending straight line C-C can be between the left side axial plane 422 and right side axial plane 424 of orientation slide-bar 420 of point Q It is crossed to form the deviation pressure of being biased to angle ω of the angle more than 0 °, the deviation of rolling-rotor 500 is made to be pressed in 100 cylinder 140 of cylinder body Casing wall 130 on, be biased to be pressed in rolling-rotor 500 on the casing wall 130 of 100 cylinder 140 of cylinder body and covering axis together with eccentricity orientation 600 with main shaft 400 when revolving round the sun, and can be biased to always roll rotation on the casing wall 130 for being pressed in 100 cylinder 140 of cylinder body, and revolve rolling Plenum chamber 142 and low-pressure chamber 141 are formed in turning in cylinder 140.
See Fig. 1, Fig. 9, the deviation rotated in a counter-clockwise direction rolls rotary compression device P as Working Examples, in master Eccentricity orientation set axis 600 is set between the orientation slide-bar 420 and rolling-rotor 500 of axis 400 and in orientation slide-bar 420 and bias After compression spring 1000 is set between orienting cover axis 600, rolling-rotor 500 can not only be made to be carried out to plenum chamber 142 In the preceding big half cycle impulse stroke of compression, the pressure for the plenum chamber 142 for acting on rolling-rotor 500 can be utilized, be made It obtains rolling-rotor 500 and is closely pressed in roll on casing wall 130 and rotate and plenum chamber 142 and low-pressure chamber 141 are implemented More efficiently seal isolation, moreover, it is also possible to so that rolling-rotor 500 plenum chamber 142 is compressed it is last small In half cycle impulse stroke, it is biased to angle ω using being formed by between rolling-rotor 500 and orientation slide-bar 420, to because rolling 500 operating phase of rotor changes to be become rolling-rotor 500 pushing away cylinder from the sealing of rolling-rotor 500 was conducive to originally Wall 130,142 pressure of plenum chamber for being unfavorable for the sealing of rolling-rotor 500 are resisted so that 500 need of rolling-rotor Centrifugal force caused by by little 1000 pressure of compression spring and during exercise, can continue to be pressed on casing wall 130 and roll Dynamic rotation, until the compression to plenum chamber 142 is completed, once and the compression pressure in plenum chamber 142 is more than design When pressure, rolling-rotor 500 but can be forced to leave casing wall 130 automatically, enable the ultra high pressure compression gas in plenum chamber 142 It is enough discharged to low-pressure chamber 141 by the gap between rolling-rotor 500 and casing wall 130 by carries out pressure release, and in compression travel When closing to an end, more efficiently eliminates and be often easy to cause appearance due to excess accumulation in plenum chamber 142 because of lubricating oil The liquid hit phenomenon of pressure jump enables compressor to obtain overcompression safeguard protection in time.Under the premise of other conditions are constant, It is sleeved on the left side hole face 612 and right side hole face of the eccentricity orientation slide opening 610 of the eccentricity orientation set axis 600 on orientation slide-bar 420 The distance d that central plane B-B between 614 deviates 620 center of circle O2 of outer circle of eccentricity orientation set axis 600 is bigger, is sleeved on bias Deviation angle ω between rolling-rotor 500 on orienting cover axis 600 and orientation slide-bar 420 is also bigger, is biased to angle ω and gets over Greatly, compression spring 1000 is generated between orientation slide-bar 420 and eccentricity orientation set axis 600 makes rolling-rotor 500 oppress cylinder The pressure of wall 130 is bigger, more so that rolling-rotor 500 is in the last small half cycle working line compressed to plenum chamber 142 Cheng Zhongneng bears 142 pressure of higher plenum chamber without departing from casing wall 130, and the compressed capability of compressor is stronger, and can be opposite The pressure for reducing compression spring 1000, to reduce the radial load and the resistance of motion of being biased to roll rotary compression device P.This Outside, have the characteristics that structures described above due to being biased to rolling rotary compression device P, it is not only advantageous to reduce compression Machining accuracy, production cost and the high efficiency for keeping compressor to be used for a long time of machine, moreover, fixed in rolling-rotor 500 and bias To after being set first rolling bearing 1100 between set axis 600, it can be also further reduced frictional resistance, improve the machinery effect of compressor Rate.
See Fig. 2, Fig. 8, the front end axis 410 and front end housing 200 of the main shaft 400 for being biased to roll rotary compression device P Axis hole 210 hole wall between be equipped with the front end axis 410 of the second rolling bearing assembly 1200 or main shaft 400 and be directly sleeved on In the axis hole 210 of front end housing 200;Second is equipped between the rear axle 430 of main shaft 400 and the hole wall of the axis hole 310 of back cylinder cover 300 The rear axle 430 of rolling bearing assembly 1200 or main shaft 400 is directly sleeved in the axis hole 310 of back cylinder cover 300, then is passed through Front end housing 200 and back cylinder cover 300 are fixed in the front end face 160 and back end surface 150 of cylinder body 100 by screw 1300 respectively, Make deviation roll rotary compression device P be fixed in 100 cylinder 140 of cylinder body, second rolling bearing assembly 1200 be with Various types rolling bearing assembly based on load radial load, with load various types rolling bearing assembly based on axial force, Any of the various types rolling bearing assembly of radial load and axial force can be loaded simultaneously.It is being biased to roll rotary compression dress Set the front end axis 410 of the main shaft 400 of P and after rear axle 430 is set with the second rolling bearing assembly 1200, so that it may further subtract The few mechanical friction resistance of compressor at work, improves working efficiency.
See that Fig. 1, Fig. 5, Fig. 8, the sliding blade apparatus R include slide plate 700, sealing the 720, the second slide plate sealing of the first slide plate 740, sliding blade apparatus R are mounted in sliding vane groove 120, and the lower end of slide plate 700 can be stretched into the cylinder 140 of cylinder body 100, and slide plate 700 lower ends are pressed in the outer circle 540 of rolling-rotor 500, and the side wall of the slide plate 700 offers 710 He of the first slide plate seal groove Second slide plate seal groove 730, the first slide plate seal groove 710 surround four sides of slide plate 700 in the middle section position of slide plate 700 Face opens up, and the set position of the first slide plate seal groove 710 is located in sliding vane groove 120.The second slide plate seal groove 730 is The lower section of one slide plate seal groove 710 opens up, and is the set position of the second slide plate seal groove 730 than the first slide plate seal groove 710 Set be located closer to rolling-rotor 500, the shape of the shape and the first slide plate seal groove 710 of the first slide plate sealing 720 Shape matches, and the first slide plate sealing 720 is inlaid in the first slide plate seal groove 710, and the first slide plate sealing 720 is located at slide plate 700 Between 120 cell wall of sliding vane groove;The second slide plate seal groove 730 includes first part's the second slide plate seal groove 731 and second Part the second slide plate seal groove 732, first part's the second slide plate seal groove 731 are opened up around four side end faces of slide plate 700, and the The set position of a part of second slide plate seal groove 731 is located in sliding vane groove 120, and the second slide plate of second part seal groove 732 divides Not in the centre position of the two opposite outer end face of 700 upper edge main shaft of slide plate, 400 axis direction, close from the second slide plate of first part Sealing groove 731 starts to open up to close to the lower face position of slide plate 700 to close to 500 direction of rolling-rotor extending, preferably second Perpendicular to first part's the second slide plate seal groove 731, the second slide plate sealing 740 includes for point the second slide plate seal groove 732 A part of second slide plate sealing 741 and it is connected to the centre position, downwards that the second slide plate of first part seals 741 liang of outsides First part's the second slide plate sealing 741 of the second slide plate of second part sealing 742 of Fang Yanshen, the second slide plate sealing 740 is embedded in In first part's the second slide plate seal groove 731 of the second slide plate seal groove 730, the second part the of the second slide plate sealing 740 Two slide plates sealing 742 is inlaid in respectively in the second slide plate of second part seal groove 732 in 730 liang of outsides of the second slide plate seal groove, It is that the shape of the second slide plate sealing 740 and the shape of the second slide plate seal groove 730 match, before being located at slide plate 700 Side end face the second slide plate of second part sealing 742 extend into the cylinder 140 of cylinder body 100 be partially disposed in slide plate 700 before Between side end face and the inner side end 220 of front end housing 200, the second slide plate of second part for being located at the back end surface of slide plate 700 is close Envelope 742 extend into the inner side end of the back end surface for being partially disposed in slide plate 700 and back cylinder cover 300 in the cylinder 140 of cylinder body 100 Between 320;First part's the second slide plate sealing 741 of the sealing 720 of first slide plate and the second slide plate sealing 740 is simultaneously to slide plate The inner side end 220 of gap and slide plate 700 between 700 and 120 cell wall of sliding vane groove and front end housing 200 and back cylinder cover 300 it is interior Gap between side end face 320 is sealed, and is realized to the seal isolation in body and between outer, the second slide plate sealing 740 The second slide plate of second part seals the inner side end of 742 pairs of slide plates 700 and the inner side end 220 and back cylinder cover 300 of front end housing 200 Gap between 320 is sealed, and realizes the seal isolation between plenum chamber 142 and low-pressure chamber 141.Described first slides Piece sealing 720 and the second slide plate sealing 740 are made of elastic wear-resisting rubber material, and the lower end of the slide plate 700 passes through slide plate The elastic force that spring 900 is applied is pressed in the outer circle 540 for the rolling-rotor 500 for being biased to roll rotary compression device P.It is embedded in There is the slide plate of the sealing 720 of the first slide plate and the second slide plate sealing 740, so that it may so that compressor can effectively reduce height at work High pressure gas in plenum chamber 142 is leaked to low-pressure chamber 141, and can effectively prevent outside body after compressor is stopped High pressure gas flow back into inside compressor, to reduce compressor working efficiency loss.
See that Fig. 1, Fig. 2, Fig. 6, Fig. 7, Fig. 8, the valving W include valve 800 and valve spring 1400, the valve 800 830 surface of periphery wall is exterior cylindrical surfaces, and back end surface offers valve spring mounting hole 810, the valve 800 In the valve guide hole H that movable set is opened up on back cylinder cover 300 or front end housing 200,800 periphery wall 830 of valve and valve The hole wall of guide hole H coordinates, the end face of the front end face 820 of valve 800 as sealing surface opposite direction cylinder body 100(The rear side of cylinder body 100 End face 150 or front end face 160), it is the then front end face of valve 800 when valve guide hole H is opened on back cylinder cover 300 820 be the back end surface 150 of opposite cylinder body 100;When valve guide hole H is opened on front end housing 200, then the front side end of valve 800 Face 820 is the front end face 160 of opposite cylinder body 100, and valve 800 of the movable set in valve guide hole H can be in valve guide hole H Interior reciprocating movement, the valve spring 1400 are sleeved on valve 800 in the valve spring mounting hole 810 that back end surface opens up, The front end face 820 of valve 800 is pressed on the end face of cylinder body 100 to seal off cylinder 140 and air discharge duct F, and is worked as After the high-pressure gas pressure in plenum chamber 142 in cylinder 140 reaches certain(Overcome the elastic force and body of valve spring 1400 External gas pressure), the front end face 820 of valve 800 can push away the end face of cylinder body 100, make high pressure gas by high pressure gas Can be from the air discharge duct F discharges being connected to the aperture of valve guide hole H, after the completion of exhaust, valve 800 again can be by valve spring 1400 Elastic force and the gas pressure of engine body exterior reset, so that the front end face 820 of valve 800 is pressed in the end of cylinder body 100 again again again Face and cylinder 140 and air discharge duct F are sealed off.The back end surface 150 or front end face 160 of the cylinder body 100 with valve The 820 corresponding position of front end face of door 800 offers pressure storing cavity M or pressure storing cavity M is opened in the front side end of valve 800 On face 820, pressure storing cavity M can increase pressure initiation area and the exhaust of the high pressure gas in the plenum chamber 142 of cylinder 140 relatively Area is conducive to the beginning thrust of the high pressure gas accumulation Open valve 800 in 140 plenum chamber 142 of cylinder, successfully by valve 800 push away cylinder body 100 and make the high pressure gas exhaust in plenum chamber 142 can be more smoothly.Valve guide hole H bottom hole with Through-hole K is opened up between the end face outside 330 of back cylinder cover 300 or the end face outside 230 of front end housing 200,800 rear side of valve can be made It is formed by cavity between end face and the bottom hole of valve guide hole H to breathe freely, avoids this cavity may be because forming high pressure shape or true Empty shape seal chamber and the flexibility for influencing 800 reciprocating movement of valve impact exhaust, and can also be by through-hole K Using external gas pressure the front end face 820 of valve 800 is closely pressed on the end face of cylinder body 100, improves Air-tightness between plenum chamber 142 and air discharge duct F.The exhaust gear of the present invention only has pressure storing cavity M sizes due to clearance volume, Therefore the volumetric efficiency of compressor can be further increased.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 8, two end face outsides of the rolling-rotor 500 are close to the position of its outer circle 540 The rolling-rotor end face seal slot 510 for offering annular respectively is set, is embedded with and rolls in the rolling-rotor end face seal slot 510 Rotor end sealing ring 520, the shape of the shape and rolling-rotor end face seal slot 510 of the rolling-rotor end face sealing ring 520 Shape matches, and the rolling-rotor end face sealing ring 520 for being located at 500 front end face of rolling-rotor is located at 500 front side end of rolling-rotor Between face and the inner side end 220 of drive end bearing bracket 200, it is located at the rolling-rotor end face sealing ring 520 of 500 back end surface of rolling-rotor Between 500 back end surface of rolling-rotor and the inner side end 320 of rear end cap 300.The rolling-rotor end face sealing ring 520 It is made of elastic wear-resisting rubber material.Embedded with the rolling-rotor 500 of rolling-rotor end face sealing ring 520, it will be able to more added with Effect ground solves the problems, such as axial seal, improves the air-tightness of compressor.In addition, rolling-rotor end face sealing ring 520 is positioned close to The position of rolling-rotor outer circle 540 can also reduce the high pressure gas surplus that plenum chamber 142 is stored in after the completion of exhaust, Improve the air compression efficiency of compressor.
See Fig. 1, Fig. 7, Fig. 8,141 side of low-pressure chamber is corresponded on the inner side end 320 of back cylinder cover 300 and is offered from rear 310 aperture of axis hole of cylinder cap 300 is led to the oil supply tank G of cylinder 140, or is corresponded on the inner side end 220 of front end housing 200 141 side of low-pressure chamber, which is offered, to be led to from 210 aperture of axis hole of front end housing 200 to the oil supply tank G of cylinder 140, in main shaft 400 Oil supply gallery is offered, oil supply tank G is connected to the oil supply gallery in main shaft 400, and the oil supply gallery in the main shaft 400 includes edge The main oil-hole 440 and the branch oilhole 450 radially opened up along main shaft 400, the outside of the main shaft 400 that main shaft 400 axially opens up exist The position of corresponding branch oilhole 450 offers withdrawing oil groove 401, and branch oilhole 450 is connected to withdrawing oil groove 401, and oil supply tank G can pass through Branch oilhole 450 and withdrawing oil groove 401 are connected to main oil-hole 440.When compressor operating, withdrawing oil groove 401 may make branch oilhole 450 It is to be connected to oil supply tank G holdings always, in the inner side end 320 of back cylinder cover 300 or the inner side end 220 of front end housing 200 After having opened up oil supply tank G, lubricating oil can directly enter from the main oil-hole 440 of main shaft 400, then through branch oilhole 450 from fuel feeding Slot G is injected into cylinder 140, to more ensure to the lubricating oil supply needed for compressor internal lubrication and sealing, further Improve the lubrication and air-proof condition inside compressor so that the durability and air-tightness of compressor are better.
The rotary compressor of the present invention has sealed reliable, and air-tightness is good, compressed capability is strong, and work efficiency is high, technique Simply, production cost is low, can keep the advantages that high efficiency being used for a long time.
Embodiment 2:
See Figure 10, is that front end housing 200 is placed below used by the present embodiment, back cylinder cover 300 is placed in the vertical of top Formula organization plan, it is contemplated that vertical structure scheme can bring bigger axial load to front end housing 200 placed below, if The front end axis 410 for being biased to roll the main shaft 400 in rotary compression device P is only through to load the second rolling based on radial load 1200 movable set of the moving axis bearing assembly axis hole of movable set in front end housing 200 in the axis hole 210 of front end housing 200 or directly In 210, it 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 small, pressure Power is big and generates bigger friction, and be unfavorable for compressor works normally for a long time, for this purpose, main shaft 400 front end axis 410 with before It is arranged between the axis hole 210 of cylinder cap 200 or between the orientation slide-bar 420 and the inner side end 220 of front end housing 200 of main shaft 400 To load based on axial force or can load simultaneously the second rolling bearing assembly 1200 of radial load and axial force, so that it may with will be upper The problem of stating solves.

Claims (4)

1. a kind of rotary compressor of good seal performance, including cylinder body(100)And it is separately fixed at cylinder body(100)Front side end Face(160)And back end surface(150)Front end housing(200)And back cylinder cover(300), the cylinder body(100)Inside offer casing wall (130)For the cylinder of cylindrical surface(140), cylinder(140)Casing wall(130)Offer sliding vane groove(120), sliding vane groove (120)Inside being provided with can be in sliding vane groove(120)The sliding blade apparatus inside to reciprocatingly slide(R), the cylinder body(100)Cylinder(140) Inside it is provided with rolling rotary compression device(P), the rolling rotary compression device(P)Including main shaft(400)And it rolls and turns Son(500), the main shaft(400)It include sequentially connected front end axis(410), orientation slide-bar(420)And rear axle(430), The rolling-rotor(500)It is sleeved on main shaft(400)On orientation slide-bar(420)Outside, main shaft(400)Front end axis(410) It is sleeved on front end housing(200)Axis hole(210)It is interior, main shaft(400)Rear axle(430)It is sleeved on back cylinder cover(300)Axis hole (310)It is interior, the rolling-rotor(500)Cylinder can be pressed in(140)Casing wall(130)Upper rolling rotation, and in rolling rotation In cylinder(140)Interior formation plenum chamber(142)And low-pressure chamber(141), and plenum chamber(142)Side wall be equipped with air exhauster Structure, low-pressure chamber(141)Offer air inlet(110), it is characterised in that:The sliding blade apparatus(R)Including slide plate(700), Two slide plates seal(740), slide plate(700)Mounted on sliding vane groove(120)It is interior, slide plate(700)One end can stretch into cylinder body(100)'s Cylinder(140)It is interior, and slide plate(700)Stretch into cylinder body(100)Cylinder(140)Interior one end is pressed in rolling-rotor(500)Outer circle (540)On, the slide plate(700)Side wall offer the second slide plate seal groove(730), the second slide plate seal groove(730) Including first part's the second slide plate seal groove(731)With second part the second slide plate seal groove(732), the second slide plate of first part Seal groove(731)Around slide plate(700)Four side end faces open up, and first part's the second slide plate seal groove(731)Set position Setting in sliding vane groove(120)It is interior, second part the second slide plate seal groove(732)Respectively in slide plate(700)Upper edge main shaft(400)Axis The two opposite outer end face in line direction, from first part's the second slide plate seal groove(731)Start to close to rolling-rotor(500)'s Direction, which extends, to be opened up to close to slide plate(700)Endface position, second slide plate sealing(740)Shape and the second slide plate it is close Sealing groove(730)Shape match, the second slide plate sealing(740)It is inlaid in the second slide plate seal groove(730)It is interior.
2. the rotary compressor of good seal performance according to claim 1, it is characterised in that:The sliding blade apparatus(R) It further include the sealing of the first slide plate(720), the slide plate(700)Side wall offer the first slide plate seal groove(710), the first slide plate Seal groove(710)Around slide plate(700)Four side end faces open up, and the first slide plate seal groove(710)Set position be located at slide Film trap(120)It is interior, and the second slide plate seal groove(730)Set position than the first slide plate seal groove(710)Set position more Close to rolling-rotor(500), the first slide plate sealing(720)Shape and the first slide plate seal groove(710)Shape phase Match, the first slide plate sealing(720)It is inlaid in the first slide plate seal groove(710)It is interior.
3. the rotary compressor of good seal performance according to claim 1, it is characterised in that:The second slide plate sealing Slot(730)Second part the second slide plate seal groove(732)Perpendicular to the second slide plate seal groove(730)First part second slide Piece seal groove(731).
4. the rotary compressor of good seal performance according to any one of claims 1 to 3, it is characterised in that:The rolling Dynamic rotary compression device(P)To be biased to roll rotary compression device, rotary compression device is rolled(P)Further include eccentric fixed To set axis(600), the eccentricity orientation set axis(600)Inside offers eccentricity orientation slide opening(610), eccentricity orientation set axis (600)Pass through its eccentricity orientation slide opening(610)It is sleeved on main shaft(400)On orientation slide-bar(420)Outside, eccentricity orientation cover axis (600)Positioned at rolling-rotor(500)With main shaft(400)On orientation slide-bar(420)Between, and eccentricity orientation covers axis(600)Energy In main shaft(400)Orientation slide-bar(420)Upper edge is perpendicular to main shaft(400)Axial line(O1—O1)Direction reciprocatingly slide, Eccentricity orientation covers axis(600)With orientation slide-bar(420)Between be provided with compression spring(1000).
CN201610247048.1A 2016-04-19 2016-04-19 A kind of rotary compressor of good seal performance Active CN105736378B (en)

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WO2017181335A1 (en) * 2016-04-19 2017-10-26 彭力丰 Rotary compressor
CN107387416A (en) * 2017-07-28 2017-11-24 广东美芝制冷设备有限公司 Pump assembly, compressor and air conditioner

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JPS6146487A (en) * 1984-08-10 1986-03-06 Nippon Air Brake Co Ltd Rotary piston compressor
KR19980067770A (en) * 1997-02-12 1998-10-15 구자홍 Vane sealing device of rotary compressor
CN100494684C (en) * 2004-07-30 2009-06-03 上海日立电器有限公司 Rolling piston type compressor
CN101109383A (en) * 2006-07-17 2008-01-23 上海日立电器有限公司 Rolling piston type air-conditioner compressor used for hybrid automobile
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CN103511262A (en) * 2013-06-21 2014-01-15 广东美芝制冷设备有限公司 Rotary compressor, double-cylinder rotary compressor and refrigeration circulating plant
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