CN102052323B - Vortex type compressor with improved lubrication structure - Google Patents
Vortex type compressor with improved lubrication structure Download PDFInfo
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- CN102052323B CN102052323B CN200910198453.9A CN200910198453A CN102052323B CN 102052323 B CN102052323 B CN 102052323B CN 200910198453 A CN200910198453 A CN 200910198453A CN 102052323 B CN102052323 B CN 102052323B
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- Prior art keywords
- hole
- receiving bore
- eccentric wheel
- bent axle
- mesopore
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Abstract
The invention discloses a vortex type compressor with an improved lubrication structure. The vortex type compressor comprises a compressor housing, a driving mechanism and a transmission mechanism, wherein the transmission mechanism comprises a crank shaft driven by a motor, and the crank shaft is provided with a mesopore extending upwards from the bottom of the crank shaft; the middle end part, which is deviated from the center of the crank shaft, of the crank shaft extends to form a crankpin; the crankpin is inserted in the groove of an eccentric wheel; the outer part of the eccentric wheel is sequentially provided with a bearing and a dynamic vertex plate; the bearing is arranged between the outer side of the eccentric wheel and the convex loop of the dynamic vertex plate; the middle end part of the crank shaft is provided with a holding hole; the position, which corresponds to the holding hole, on the eccentric wheel is provided with a through hole penetrating through the eccentric wheel, and the holding hole and the through hole are communicated and aligned with each other; and elastic sealing elements are arranged in the holding hole and the through hole. In the invention, after the elastic sealing elements are assembled on the crank shaft and the eccentric wheel, lubricating oil can enter an oil chamber on the top of the eccentric wheel through the mesopore, a connecting passage and passages on the elastic sealing elements, and further the bearing at the outer side of the eccentric wheel can be lubricated.
Description
Technical field
The present invention relates to scroll compressor, more particularly, relate to a kind of scroll compressor with improved lubricating structure.
Background technique
During the crankshaft rotating of scroll compressor, the crank being fixed on prejudicially on its end face is made eccentric rotary, is with movable orbiting scroll revolution simultaneously.Between crank and whirlpool dish, be provided with the eccentric wheel being rotatably assorted with whirlpool dish, crank inserts eccentric wheel axis hole, does not allow to relatively rotate between eccentric wheel and bent axle.Therefore, between eccentric wheel and bent axle, arrange and prevent the locating piece that both deflect, as pin.
US Patent No. 4,997,349 have disclosed a kind of driving mechanism of electronic scroll-type compressor.Shown in figure 1, disclosed US4,997,349 structure, bent axle 40 is with a protruding dish 84 contacting with eccentric wheel 94, protruding dish end face stretches out crank pin 98, crank pin inserts in eccentric groove 96, and eccentric wheel is also with the pin-and-hole parallel with groove 96 150, and the pin-and-hole 158 that pin-and-hole 150 is larger with diameter on protruding dish is corresponding, the locating stud 160 that inserts scroll, this locating stud can keep eccentric wheel with respect to the horizontal position of protruding dish roughly.Bent axle also offer from bottom crank pin end for the lubricant oil of bottom being delivered to the through hole 122 of each crankshaft bearing and shoe cream room 140, this through hole 122 is through to crank pin end; Bent axle middle part is above offers the passage 152 being communicated with hyperbaric chamber, and pressurized gas can pass through passage 152, pin-and-hole 158, locating stud 160 mesopores, arrives the shoe cream room 140 between crank pin end face and whirlpool dish, and whirlpool dish is applied to back pressure.
It should be noted that between protruding dish 84 and eccentric wheel 94 fastener-free compresses, lubricant oil is easily from pin-and-hole 150 from radial leakage between the two to eccentric wheel outside, the effect that does not therefore reach lubricated eccentric wheel outboard bearing.
Summary of the invention
For the problem of the oil leak existing in prior art, the present invention proposes a kind of scroll compressor with improved lubricating structure, it can be fed to sufficient lubricant oil on the bearing outside eccentric wheel.
According to one embodiment of the invention, disclosed a kind of scroll compressor with improved lubricating structure, comprising: compressor housing, driving mechanism, driving mechanism, this driving mechanism comprises:
Bent axle, bent axle has the upwardly extending mesopore from bottom, the middle end of bent axle is departed from the position of crankshaft center and is stretched out crank pin, crank pin inserts in eccentric groove, eccentric wheel is equipped with bearing, movable orbiting scroll outward successively, and bearing is located between eccentric wheel outside and the bulge loop of movable orbiting scroll, and the middle end of bent axle is provided with receiving bore, on eccentric wheel, position that should receiving bore is provided with and runs through eccentric through hole
Wherein, this receiving bore communicates with mesopore, in receiving bore and through hole, elastomer seal is installed.
In one embodiment, through hole has ledge structure, and the diameter of through hole bottom is larger than the diameter on through hole top, and through hole top is connected to the shoe cream room at eccentric wheel top, and through hole bottom connects receiving bore; The bottom surface of receiving bore is plane, and elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore.
In one embodiment, between bent axle and eccentric wheel, be provided with equilibrium block, this equilibrium block and eccentric wheel are fixed together and between the middle end of eccentric wheel and bent axle, on equilibrium block, there is perforate, the equal diameters of this perforate and through hole bottom, and this perforate, this through hole bottom and this receiving bore three aim at; Elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore, and the length of elastomer seal at least runs through this equilibrium block.
Elastomer seal is cylindrical, and material is rubber material or teflon, and the centre of elastomer seal is provided with the passage that runs through this elastomer seal.
In one embodiment, between the mesopore of receiving bore and bent axle, by attachment hole, be communicated with, this attachment hole is parallel to mesopore, and the opening of attachment hole is positioned at the middle part of receiving bore bottom surface, and the diameter of attachment hole is less than receiving bore.In another embodiment, between the mesopore of receiving bore and bent axle, by attachment hole, be communicated with, this attachment hole becomes inclination angle with mesopore, and the opening of attachment hole is positioned at the middle part of receiving bore bottom surface, and the diameter of attachment hole is less than receiving bore.
The both sides in crank pin outside arrange two parallel planes, and eccentric groove inner side arranges two side planes, and parallel plane coordinates with side plane; Between two parallel planes in crank pin outside, by arc surface, connected, two side planes of eccentric groove inner side are also connected by arc surface, between the arc surface in crank pin outside and the arc surface of eccentric groove inner side, have gap.
After the present invention is assemblied on bent axle and eccentric wheel by elastomer seal, lubricant oil can enter by the passage on mesopore, connecting passage, elastomer seal the shoe cream room at eccentric wheel top, then the bearing in lubricated eccentric wheel outside.
Accompanying drawing explanation
The above and other features of the present invention, character and advantage become more obvious by the description by below in conjunction with drawings and Examples, and in the accompanying drawings, identical reference character represents identical feature all the time, wherein:
Fig. 1 has disclosed US4, the structural drawing of the driving mechanism of 997,349 scroll-type compressor;
Fig. 2 has disclosed according to the structural drawing of the driving mechanism of the scroll-type compressor of one embodiment of the invention;
Fig. 3 has disclosed the end-face structure of eccentric wheel and bent axle cooperation;
Fig. 4 has disclosed the structure for amplifying of elastomer seal;
Fig. 5 has disclosed the structural drawing of the driving mechanism of scroll-type compressor according to another embodiment of the invention.
Embodiment
The present invention proposes a kind of scroll compressor with improved lubricating structure, comprise: compressor housing, driving mechanism, driving mechanism, this driving mechanism comprises: bent axle, bent axle has the upwardly extending mesopore from bottom, the middle end of bent axle is departed from the position of crankshaft center and is stretched out crank pin, crank pin inserts in eccentric groove, eccentric wheel is equipped with bearing outward successively, movable orbiting scroll, bearing is located between eccentric wheel outside and the bulge loop of movable orbiting scroll, the middle end of bent axle is provided with receiving bore, on eccentric wheel, position that should receiving bore is provided with and runs through eccentric through hole, this receiving bore communicates with mesopore, in receiving bore and through hole, elastomer seal is installed.
Through hole has ledge structure, and the diameter of through hole bottom is larger than the diameter on through hole top, and through hole top is connected to the shoe cream room at eccentric wheel top, and through hole bottom connects receiving bore; The bottom surface of receiving bore is plane, and elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore.Elastomer seal is cylindrical, and material is rubber material, and the centre of elastomer seal is provided with the passage that runs through this elastomer seal.Between the mesopore of receiving bore and bent axle, by attachment hole, be communicated with, this attachment hole is parallel to mesopore, and the opening of attachment hole is positioned at the middle part of receiving bore bottom surface, and the diameter of attachment hole is less than receiving bore.Between the mesopore of receiving bore and bent axle, by attachment hole, be communicated with, this attachment hole becomes inclination angle with mesopore, and the opening of attachment hole is positioned at the middle part of receiving bore bottom surface, and the diameter of attachment hole is less than receiving bore.
The both sides in crank pin outside arrange two parallel planes, and eccentric groove inner side arranges two side planes, and parallel plane coordinates with described side plane; Between two parallel planes in crank pin outside, by arc surface, connected, two side planes of eccentric groove inner side are also connected by arc surface, between the arc surface in crank pin outside and the arc surface of eccentric groove inner side, have gap.
With reference to the embodiment shown in figure 2-Fig. 4, wherein Fig. 3 has disclosed the end-face structure of eccentric wheel and bent axle cooperation, and Fig. 4 has disclosed the structure for amplifying of elastomer seal.
With reference to figure 2, the driving mechanism of scroll compressor comprises and is subject to motor-driven bent axle 1, bent axle has the upwardly extending mesopore 16 from bottom, the middle end 11 of bent axle 1 is departed from the position of crankshaft center and is stretched out crank pin 12, crank pin 12 inserts in the groove 21 of eccentric wheel 20, and eccentric wheel is equipped with bearing 30, movable orbiting scroll 32 outward successively.When crankshaft rotating, crank pin drives movable orbiting scroll to make eccentric rotary, and eccentric wheel, bearing work the effect of being slidably connected between the two.Between eccentric wheel and crank pin, do not allow to produce and circumferentially relatively rotate and significantly displacement, for this reason, both sides in crank pin outside arrange two parallel plane 12a, coordinate with two side planes of eccentric groove inner side, for limiting circumferentially relatively rotating between crank pin and eccentric wheel, between two parallel planes, by arc surface 12b, connected, two side planes of same eccentric groove inner side also connect by arc surface.As shown in Figure 3, between the arc surface 12b in crank pin outside and the arc surface of eccentric groove 21 inner sides, leave micro-gap.Between eccentric wheel outside and movable orbiting scroll bulge loop, be provided with bearing 30.The middle end 11 of bent axle is provided with receiving bore 13, on eccentric wheel 20, position that should receiving bore 13 is provided with and runs through eccentric through hole 23, and this receiving bore 13 communicates and is aligned with each other with through hole 23.The receiving bore 13 of mutually aiming at and through hole 23 are for installing elastomer seal 22.Through hole 23 has ledge structure 23a, the diameter of through hole bottom is larger than through hole top, receiving bore 13 bottom surface 13a are plane, between the ledge structure 23a of through hole lower tip (step surface) and the bottom surface 13a of receiving bore 13, clamp elastomer seal 22, elastomer seal 22 is the cylindrical of hollow, by rubber material, being made, can be also teflon.At elastomer seal 22 center, be provided with passage 22a.As shown in the zoomed-in view of Fig. 4, between the mesopore 16 of receiving bore 13 and bent axle, there is attachment hole 14, this attachment hole 14 can be made as and be parallel to mesopore 16, and the opening 14a of attachment hole 14 is positioned at the middle part of receiving bore 13 bottom surfaces, and the diameter of attachment hole 14 is less than receiving bore 13.Attachment hole 14 also can be set as and 16 one-tenth inclination angles of mesopore (becoming inclination angle with axle center), with reference to the embodiment shown in figure 5.It is the centrifugal force that increases lubricant oil that attachment hole 14 also can be set as with the advantage at 16 one-tenth inclination angles of mesopore, more easily enters into passage.
In one embodiment, between bent axle and eccentric wheel, be provided with equilibrium block, this equilibrium block and eccentric wheel are fixed together and between the middle end of eccentric wheel and bent axle, on equilibrium block, there is perforate, the equal diameters of this perforate and through hole bottom, and this perforate, this through hole bottom and this receiving bore three aim at; Elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore, and the length of elastomer seal at least runs through this equilibrium block.
Embodiment with reference to shown in figure 5 is provided with equilibrium block 28 between bent axle and eccentric wheel, and this equilibrium block and eccentric wheel 20 are fixed together and between the middle end 11 of eccentric wheel and bent axle.Elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore, and through the perforate on equilibrium block, the length of elastomer seal is greater than the thickness of equilibrium block.Perforate on equilibrium block is all aimed at through hole bottom and receiving bore.
Above-mentioned form on being applied in motor-driven scroll compressor, can also be applied in the scroll compressor that belt pulley drives, as long as bent axle has the mesopore of Oil Guide.
After the present invention is assemblied on bent axle and eccentric wheel by elastomer seal, lubricant oil can enter by the passage on mesopore, connecting passage, elastomer seal the shoe cream room at eccentric wheel top, then the bearing in lubricated eccentric wheel outside.
Claims (7)
1. a scroll compressor with improved lubricating structure, comprising: compressor housing, driving mechanism, driving mechanism, and this driving mechanism comprises:
Bent axle, bent axle has the upwardly extending mesopore from bottom, the middle end of bent axle is departed from the position of crankshaft center and is stretched out crank pin, crank pin inserts in eccentric groove, eccentric wheel is equipped with bearing, movable orbiting scroll outward successively, and bearing is located between eccentric wheel outside and the bulge loop of movable orbiting scroll, and the middle end of bent axle is provided with receiving bore, on eccentric wheel, position that should receiving bore is provided with and runs through eccentric through hole
It is characterized in that, this receiving bore communicates with mesopore, in described receiving bore and through hole, elastomer seal is installed.
2. scroll compressor as claimed in claim 1, is characterized in that,
Described through hole has ledge structure, and the diameter of through hole bottom is larger than the diameter on through hole top, and through hole top is connected to the shoe cream room at eccentric wheel top, through hole bottom Lian Suoshu receiving bore;
The bottom surface of described receiving bore is plane, and described elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore.
3. scroll compressor as claimed in claim 2, is characterized in that,
Between bent axle and eccentric wheel, be provided with equilibrium block, this equilibrium block and eccentric wheel are fixed together and between the middle end of eccentric wheel and bent axle, on described equilibrium block, there is perforate, the equal diameters of this perforate and described through hole bottom, and this perforate, this through hole bottom and this receiving bore three aim at;
Described elastomer seal is installed between the ledge structure of through hole lower tip and the bottom surface of receiving bore, and the length of described elastomer seal at least runs through this equilibrium block.
4. scroll compressor as claimed in claim 2, is characterized in that,
Described elastomer seal is cylindrical, and material is rubber material or teflon, and the centre of described elastomer seal is provided with the passage that runs through this elastomer seal.
5. scroll compressor as claimed in claim 1, is characterized in that,
Between the mesopore of receiving bore and bent axle, by attachment hole, be communicated with, this attachment hole is parallel to mesopore, and the opening of attachment hole is positioned at the middle part of receiving bore bottom surface, and the diameter of attachment hole is less than receiving bore.
6. scroll compressor as claimed in claim 1, is characterized in that,
Between the mesopore of receiving bore and bent axle, by attachment hole, be communicated with, this attachment hole becomes inclination angle with mesopore, and the opening of attachment hole is positioned at the middle part of receiving bore bottom surface, and the diameter of attachment hole is less than receiving bore.
7. scroll compressor as claimed in claim 1, is characterized in that,
The both sides in crank pin outside arrange two parallel planes, and eccentric groove inner side arranges two side planes, and described parallel plane coordinates with described side plane;
Between two parallel planes in crank pin outside, by arc surface, connected, two side planes of eccentric groove inner side are also connected by arc surface, between the arc surface in crank pin outside and the arc surface of eccentric groove inner side, have gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198453.9A CN102052323B (en) | 2009-11-09 | 2009-11-09 | Vortex type compressor with improved lubrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198453.9A CN102052323B (en) | 2009-11-09 | 2009-11-09 | Vortex type compressor with improved lubrication structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102052323A CN102052323A (en) | 2011-05-11 |
| CN102052323B true CN102052323B (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910198453.9A Expired - Fee Related CN102052323B (en) | 2009-11-09 | 2009-11-09 | Vortex type compressor with improved lubrication structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102052323B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4997349A (en) * | 1989-10-05 | 1991-03-05 | Tecumseh Products Company | Lubrication system for the crank mechanism of a scroll compressor |
| US5217359A (en) * | 1989-11-02 | 1993-06-08 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor with regulated oil flow to the back pressure chamber |
| CN1140803A (en) * | 1995-07-03 | 1997-01-22 | 特库姆塞制品公司 | Scroll compressor having suction check valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0196486A (en) * | 1987-10-07 | 1989-04-14 | Matsushita Electric Ind Co Ltd | Enclosed scroll compressor |
| JPH05133358A (en) * | 1991-11-07 | 1993-05-28 | Mitsubishi Heavy Ind Ltd | Horizontal scroll compressor |
| JP3389866B2 (en) * | 1998-10-30 | 2003-03-24 | ダイキン工業株式会社 | High pressure dome type scroll compressor |
-
2009
- 2009-11-09 CN CN200910198453.9A patent/CN102052323B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4997349A (en) * | 1989-10-05 | 1991-03-05 | Tecumseh Products Company | Lubrication system for the crank mechanism of a scroll compressor |
| US5217359A (en) * | 1989-11-02 | 1993-06-08 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor with regulated oil flow to the back pressure chamber |
| CN1140803A (en) * | 1995-07-03 | 1997-01-22 | 特库姆塞制品公司 | Scroll compressor having suction check valve |
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| Publication number | Publication date |
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| CN102052323A (en) | 2011-05-11 |
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Address after: Shanghai City 200025 Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: Shanghai City 200025 Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20181109 |