CN104047851A - Vortex air compressor with radially sealable movable and static discs - Google Patents
Vortex air compressor with radially sealable movable and static discs Download PDFInfo
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- CN104047851A CN104047851A CN201410329887.9A CN201410329887A CN104047851A CN 104047851 A CN104047851 A CN 104047851A CN 201410329887 A CN201410329887 A CN 201410329887A CN 104047851 A CN104047851 A CN 104047851A
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- moving plate
- quiet dish
- crankshaft
- flip sleeve
- air compressor
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Abstract
The invention discloses a vortex air compressor with stably and radially sealable movable and static discs. The vortex air compressor comprises a static disc, a movable disc and a crankshaft, wherein the eccentric section of the crankshaft is connected with a sliding sleeve through an axial guide plane on the outer wall of the eccentric section of the crankshaft; a bearing is connected between the outer wall of the sliding wall and the hub of the movable disc; the sliding sleeve can slide by being perpendicular to the guide plane, so as to realize radial sealing between the movable and static discs to eliminate a radial gap; the shape of an inner hole of the sliding sleeve is matched with the appearance of the eccentric section of the crankshaft; the width of the straight edge of the inner hole wall of the sliding sleeve is greater than that of the guide plane on the eccentric section of the crankshaft; the guide plane is on the side wall of the eccentric section of the crankshaft, perpendicular to the eccentric axial central surface, so that the direction of the movable disc centrifugal component force of the sliding sleeve along the sliding direction is opposite to that of a tangent air component force; the movable disc centrifugal component force is along the forward direction of the sliding direction; the action force of the movable disc attaching to the static disc is the difference between the movable disc centrifugal component force and the tangent air component force; the possibility of vortex blade damage is lowered.
Description
Technical field
The present invention relates to a kind of scroll air compressor, be specifically related to a kind of scroll air compressor and be connected in the flip sleeve on bent axle.
Background technique
Scroll air compressor is high with its efficiency, noise is low, volume is little, be conducive to the advantages such as energy-conservation and protection of the environment and be widely used in the compressed-air actuated occasions of industry needs such as industry, agricultural, communications and transportation.Scroll air compressor mainly moves part whirlpool dish and only has engagement, do not produce wearing and tearing, thereby the life-span is longer than piston type, screw compressor, is pneumatic machinery ideal power source.In scroll air compressor, main operation part whirlpool dish is divided into Moving plate and quiet dish, in Moving plate and quiet dish, establish vortex sheet, conventionally, be bonded to each other and form compression chamber by Moving plate and quiet dish, in the time that Moving plate is done translation by bent axle drive along certain circular path, Moving plate vortex sheet moves relative to quiet dish vortex sheet, the compression chamber being formed by both moves and changes its volume, thereby sucks, compresses, discharges, and completes compressed-air actuated process.
Tradition scroll air compressor technological scheme adopts the bent axle of fixing offset, in movement process, between radial direction and quiet dish, there is all the time a small gap in Moving plate, this micro-gap is ensured by machining accuracy and assembly precision, general warranty gap, at 0.01 ~ 0.05mm, requires very high to process equipment.Because sound disc radial exists this micro-gap, can cause Leakage Gas, prevent Leakage Gas, just need to reduce gap or improve fuel injection quantity, the former need to adopt more high-precision process equipment, and the latter can cause compressor horsepower to rise and gas oil content rises, and pressurized gas quality declines.
Fig. 7 is traditional spiral cooling compressor flip sleeve structure and main force analysis, and the component in flip sleeve glide direction of tangential gas force Ft ' and centrifugal force Fm ' is Ftr ' and Fmr '.At spiral cooling compressor, centrifugal force is far smaller than tangential gas force conventionally, and radial gas power is very little, in stressed, can not consider.The force action power of the component F mr ' of the centrifugal force of the tangential force component Ftr ' that flip sleeve 4-1 ' bears at Moving plate and Moving plate, Moving plate bearing and flip sleeve produces the straight line motion along flip sleeve glide direction, make Moving plate be affixed to quiet dish, small like this radial clearance has not just existed in theory.But, if scroll air compressor adopts such structure, can cause the excessive with joint efforts of Ftr ' and F mr ', in compressor is starting, shuts down and running up, easily there is the damage of vortex sheet, thereby cause the consequence of the stuck and compressor failure of compressor.
Summary of the invention
The object of the present invention is to provide a kind ofly by being connected in the flip sleeve that makes Moving plate gently stablize the quiet dish of fitting in crankshaft eccentric section, realize the radial seal between scroll air compressor Moving plate and quiet dish.
This Moving plate disclosed by the invention and quiet dish are stablized the scroll air compressor of radial seal, comprise quiet dish, Moving plate and bent axle, the eccentric segment of bent axle inserts in the wheel hub of Moving plate, on the eccentric segment of bent axle, be connected with flip sleeve by the axial guide surface of its outer wall, between the outer wall of flip sleeve and the wheel hub of Moving plate, be connected with bearing, flip sleeve can slide and realize the radial seal between Moving plate and quiet dish perpendicular to guide surface.The interior hole shape of flip sleeve mates with the profile of crankshaft eccentric section, and the straight flange width of its inner hole wall is greater than the guide surface width in crankshaft eccentric section.Described guide surface be positioned at crankshaft eccentric section perpendicular to its eccentric shaft the sidewall to median plane, make the opposite direction of flip sleeve along the suffered Moving plate centrifugal force of glide direction component and tangential gas force component, Moving plate centrifugal force component is along glide direction forward, tangential gas force component is reverse along glide direction, the active force that Moving plate is affixed to quiet dish is the difference of Moving plate centrifugal force component and tangential gas force component, and this difference acts on the side of quiet dish vortex sheet.
Described bearing is needle bearing or the sliding bearing sleeve of not being with inner ring.
Because in scroll air compressor, because the air-breathing density of air is less, under same power, the quality of Moving plate is generally larger, the tangential gas force that the centrifugal force that Moving plate produces at the volley like this and Moving plate bear is more or less the same, if still adopt spiral cooling compressor design proposal, can cause tangential gas force and centrifugal force along glide direction component make a concerted effort very large, the power that while making Moving plate and the laminating of quiet dish, vortex sheet bears is excessive, easily occurs the damage of vortex sheet.Particularly, in frequent starting process, the sector-meeting of Moving plate vortex produces frequently and impacts quiet dish vortex sheet, finally causes the fatigue damage of vortex sheet, compressor failure.
The present invention bears redistributing of tangential gas force component and Moving plate, bearing and flip sleeve centrifugal force component by flip sleeve to Moving plate, the power that makes flip sleeve drive Moving plate to be affixed to quiet dish is centrifugal force and the difference of tangential gas along glide direction component, thus the active force while reducing Moving plate and the laminating of quiet dish.Overcome the tangential gas force of Moving plate by Moving plate centrifugal force, by flip sleeve make Moving plate light and stable be affixed to quiet dish, make stressed the declining to a great extent of vortex sheet on Moving plate and quiet dish, thereby reduce the possibility of vortex sheet damage, and eliminate theoretically radially micro-gap, reduce Leakage Gas, make scroll air compressor running reliable and efficient.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of one embodiment of the invention.
Fig. 2 is the assembly structure schematic side view of flip sleeve and bent axle and bearing in Fig. 1.
Fig. 3 be in Fig. 2 flip sleeve stressed schematic diagram.
Fig. 4 is the exploded perspective view of flip sleeve and bent axle and bearing assemble part in Fig. 1.
Schematic cross-section when Fig. 5 is Moving plate and the laminating of quiet dish.
Fig. 6 is the schematic cross-section of Moving plate while separating with quiet dish.
Fig. 7 is the assembly structure schematic side view of flip sleeve and bent axle and bearing in prior art spiral cooling compressor.
Fig. 8 is the stressed schematic diagram of flip sleeve in Fig. 7.
Embodiment
As shown in Fig. 1, Fig. 3, Fig. 4, this Moving plate disclosed by the invention and quiet dish are stablized the scroll air compressor of radial seal, quiet dish 1, Moving plate 2, partition ring 3, bent axle 4, forebay 5, main equilibrium block 6, rear bay 7, rear case component 8, secondary equilibrium block 9, bearing 4-2, main bearing 16, supplementary bearing 17.Quiet dish 1, forebay 5 and rear bay 7 are connected successively, on quiet dish 1, there is intakeport 11, Moving plate 2 angles are positioned on forebay 5, the central part of forebay 5 housing 5-2 front ends is provided with cylindrical part 5-1, between the housing 5-2 of cylindrical part 5-1 and forebay 5, offer annular groove, establish annular support collar with axially support Moving plate 2 at the front end of cylindrical part 5-1.The wheel hub of Moving plate 2 stretches in cylindrical part 5-1, is connected with bearing 4-2 by flip sleeve 4-1 with the wheel hub of Moving plate 2.The non-eccentricity section of bent axle 4 is positioned at forebay 5 and is connected the rear axial centre that forms inner chamber with rear bay 7, is connected respectively by main bearing 16 with supplementary bearing 17.
The eccentric segment of bent axle 4 is connected with flip sleeve 4-1 by the axial guide surface of its outer wall, between the wheel hub of the outer wall of flip sleeve 4-1 and Moving plate 2, be connected with bearing 4-2, flip sleeve 4-1 can slide and realize the radial seal between Moving plate 2 and quiet dish 1 perpendicular to guide surface.The interior hole shape of flip sleeve 4-1 mates with the profile of bent axle 4 eccentric segments, and the straight flange width of its inner hole wall is greater than the guide surface width on bent axle 4 eccentric segments.Guide surface be positioned at bent axle 4 eccentric segments perpendicular to its eccentric shaft the sidewall to median plane, make the opposite direction of flip sleeve 4-1 along the suffered Moving plate centrifugal force of glide direction component and tangential gas force component, Moving plate centrifugal force component is along glide direction forward, tangential gas force component is reverse along glide direction, the active force that Moving plate 2 is affixed to quiet dish 1 is the difference of Moving plate centrifugal force component and tangential gas force component, and this difference acts on the side of quiet dish 1 vortex sheet.
Bearing 4-2 adopts the not needle bearing with inner ring or sliding bearing sleeve, Figure 4 shows that the needle bearing of not being with inner ring.
As shown in Figure 2, the adhesive force that Moving plate 2 is affixed to quiet dish 1 be Moving plate 2 centrifugal force Fm with tangential gas force Ft along glide direction component Fmr and Ftr with joint efforts,, Fmr and Ftr lay respectively at the forward of flip sleeve 4-1 glide direction and reverse, ensure that Fmr is greater than Ftr.The masterpiece of the difference of Fmr-Ftr is for the side of quiet dish 1 vortex sheet.When design, consider certain nargin, as make the difference of Fmr-Ftr be approximately 500～2000N.Make a concerted effort.Can ensure that like this Moving plate 2 relies on quiet dish 1 reliably, but make the vortex sheet strength of Moving plate 2 and quiet dish 1 less, effectively prevent the damage of vortex sheet, and eliminate theoretically radially micro-gap, make compressor operation reliable and efficient.
As shown in Figure 4, in the time that Moving plate 2 relies on quiet dish 1, between the vortex sheet on dynamic and static dish, closely cooperate, radial clearance is eliminated in theory completely.
As shown in Figure 5; in the time there is larger pressure between vortex sheet on shutdown and dynamic and static dish; radial clearance δ on dynamic and static dish between vortex sheet can enlarge markedly; pressure is discharged; thereby effectively protect vortex sheet; further protect vortex sheet, ensured scroll air compressor reliability.
The present invention bears redistributing of tangential gas force component and Moving plate, bearing box flip sleeve assembly centrifugal force component by flip sleeve to Moving plate, the power that makes flip sleeve drive Moving plate to be affixed to quiet dish is the difference of centrifugal force and tangential gas component, thus the active force while reducing Moving plate and the laminating of quiet dish.Overcome the tangential gas force of Moving plate by Moving plate centrifugal force, make Moving plate gently stablize and be affixed to quiet dish by flip sleeve, make that vortex sheet is stressed to decline to a great extent, thereby reduce the possibility of vortex sheet damage, and eliminate theoretically radially micro-gap, reduce Leakage Gas, make scroll air compressor running reliable and efficient.
Claims (2)
1. a Moving plate and quiet dish are stablized the scroll air compressor of radial seal, comprise quiet dish, Moving plate and bent axle, the eccentric segment of bent axle inserts in the wheel hub of Moving plate, the eccentric segment of bent axle is connected with flip sleeve by the axial guide surface of its outer wall, between the outer wall of flip sleeve and the wheel hub of Moving plate, be connected with bearing, flip sleeve can slide and realize the radial seal between Moving plate and quiet dish perpendicular to guide surface, it is characterized in that: the interior hole shape of described flip sleeve mates with the profile of crankshaft eccentric section, the straight flange width of its inner hole wall is greater than the guide surface width in described crankshaft eccentric section, described guide surface be positioned at crankshaft eccentric section perpendicular to its eccentric shaft the sidewall to median plane, make the opposite direction of described flip sleeve along the suffered Moving plate centrifugal force of glide direction component and tangential gas force component, Moving plate centrifugal force component is along glide direction forward, tangential gas force component is reverse along glide direction, the active force that Moving plate is affixed to quiet dish is the difference of Moving plate centrifugal force component and tangential gas force component, this difference acts on the side of quiet dish vortex sheet.
2. Moving plate as claimed in claim 1 and quiet dish are stablized the scroll air compressor of radial seal, it is characterized in that: described bearing is needle bearing or the sliding bearing sleeve of not being with inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329887.9A CN104047851A (en) | 2014-07-11 | 2014-07-11 | Vortex air compressor with radially sealable movable and static discs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329887.9A CN104047851A (en) | 2014-07-11 | 2014-07-11 | Vortex air compressor with radially sealable movable and static discs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104047851A true CN104047851A (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410329887.9A Pending CN104047851A (en) | 2014-07-11 | 2014-07-11 | Vortex air compressor with radially sealable movable and static discs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922817A (en) * | 2022-06-24 | 2022-08-19 | 广东美的环境科技有限公司 | Eccentric sliding block for crankshaft, scroll compressor and temperature control equipment |
Citations (11)
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|---|---|---|---|---|
| CN87103909A (en) * | 1986-05-30 | 1987-12-30 | 松下电器产业株式会社 | Scroll compressor |
| JPH03233178A (en) * | 1990-02-07 | 1991-10-17 | Mitsubishi Electric Corp | Scroll compressor |
| JPH04128582A (en) * | 1990-06-20 | 1992-04-30 | Mitsubishi Electric Corp | Scroll compressor |
| US5496157A (en) * | 1994-12-21 | 1996-03-05 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
| US5547354A (en) * | 1993-12-02 | 1996-08-20 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Scroll compressor balancing |
| JPH11101186A (en) * | 1997-09-26 | 1999-04-13 | Yamaha Motor Co Ltd | Scroll compressor |
| CN101008321A (en) * | 2006-01-26 | 2007-08-01 | 倪诗茂 | Improved scroll-type fluid displacement apparatus with fully compliant floating scrolls |
| CN102486174A (en) * | 2010-12-03 | 2012-06-06 | 郭华明 | Inverter scroll compressor with radial flexible sealing |
| CN202991488U (en) * | 2012-06-06 | 2013-06-12 | 苏州英华特制冷设备技术有限公司 | Axial flexible sealed vortex compressor |
| CN103477079A (en) * | 2011-04-22 | 2013-12-25 | 法雷奥日本株式会社 | Scroll compressor |
| CN204025045U (en) * | 2014-07-11 | 2014-12-17 | 湖南联力精密机械有限公司 | Moving plate and quiet dish can the scroll air compressors of radial seal |
-
2014
- 2014-07-11 CN CN201410329887.9A patent/CN104047851A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103909A (en) * | 1986-05-30 | 1987-12-30 | 松下电器产业株式会社 | Scroll compressor |
| JPH03233178A (en) * | 1990-02-07 | 1991-10-17 | Mitsubishi Electric Corp | Scroll compressor |
| JPH04128582A (en) * | 1990-06-20 | 1992-04-30 | Mitsubishi Electric Corp | Scroll compressor |
| US5547354A (en) * | 1993-12-02 | 1996-08-20 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Scroll compressor balancing |
| US5496157A (en) * | 1994-12-21 | 1996-03-05 | Carrier Corporation | Reverse rotation prevention for scroll compressors |
| JPH11101186A (en) * | 1997-09-26 | 1999-04-13 | Yamaha Motor Co Ltd | Scroll compressor |
| CN101008321A (en) * | 2006-01-26 | 2007-08-01 | 倪诗茂 | Improved scroll-type fluid displacement apparatus with fully compliant floating scrolls |
| CN102486174A (en) * | 2010-12-03 | 2012-06-06 | 郭华明 | Inverter scroll compressor with radial flexible sealing |
| CN103477079A (en) * | 2011-04-22 | 2013-12-25 | 法雷奥日本株式会社 | Scroll compressor |
| CN202991488U (en) * | 2012-06-06 | 2013-06-12 | 苏州英华特制冷设备技术有限公司 | Axial flexible sealed vortex compressor |
| CN204025045U (en) * | 2014-07-11 | 2014-12-17 | 湖南联力精密机械有限公司 | Moving plate and quiet dish can the scroll air compressors of radial seal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922817A (en) * | 2022-06-24 | 2022-08-19 | 广东美的环境科技有限公司 | Eccentric sliding block for crankshaft, scroll compressor and temperature control equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jiangliang Inventor before: Zhang Jiang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG JIANG TO: ZHANG JIANGLIANG |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140917 |