CN102257244B - 涡旋压缩机 - Google Patents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F01C1/0215—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
- F01C1/0253—Details concerning the base
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/007—Sealings for working fluid between radially and axially moving parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/601—Adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/603—Centering; Aligning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/70—Disassembly methods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations 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
- F04C23/008—Hermetic pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49236—Fluid pump or compressor making
- Y10T29/49238—Repairing, converting, servicing or salvaging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
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Abstract
一种涡旋压缩机(40)包括外壳(12)、动涡盘(26)和静涡盘(41)。驱动轴(14)具有偏心轴部分(18)使得该偏心轴部分的旋转给予该动涡盘相对于静涡盘的盘旋运动。轴向垫片(42)位于静涡盘与外壳之间用于相对于动涡盘间隔该静涡盘。当涡旋压缩机(40)组装且测试且其需要执行加垫片时,静涡盘可被移除且在重新组装该静涡盘之前将选定垫片放置就位。
Description
技术领域
本发明涉及一种涡旋压缩机。
背景技术
现有技术涡旋压缩机10在图5中示出,包括外壳12、驱动轴14,驱动轴14具有同心轴部分16和偏心轴部分18。轴14在其同心部分由轴承20支承且由马达22驱动,轴承20相对于外壳12固定。第二轴承24在偏心轴部分18上支承动涡盘26使得在使用期间轴的旋转给予该动涡盘26相对于静涡盘28的盘旋运动,以沿着压缩机的入口31与出口33之间的流体流动路径30泵送气态流体。
每个涡盘包括涡盘壁32、34,涡盘壁32、34垂直于大体上圆形的基板27、29延伸。在动涡盘的盘旋移动期间动涡盘壁32与静涡盘壁34合作。涡旋泵为干式泵且因此在制造或调整期间必须精确地设置在涡盘之间的间隙以最小化流体通过这些间隙的渗漏。术语“干式泵”是本领域中熟知的且大体上被理解为不包含直接暴露在泵送腔室中的真空下的任何密封或润滑流体的泵。
详言之,一个涡盘的涡盘壁的轴向端部与另一涡盘的基板之间的空间由顶端密封件36密封,但为了允许顶端密封件有效地密封且避免过量磨损,必须精确地控制在动涡盘与静涡盘之间的轴向间隔。
由于压缩机的部件在公差内制造,必需在组装该压缩机时调整在动涡盘与静涡盘之间的间隔来在轴向产生正确间隔。这个程序通常被称作“加垫片(shimming)”。
在图5中,动涡盘与静涡盘由位于驱动轴14的梯级部分与轴承24之间的垫片38间隔开。垫片通常为圆形且绕该驱动轴的偏心部分18的圆周延伸。选择垫片38的轴向厚度以产生动涡盘在轴向的正确定位。当垫片如图所示定位时,动涡盘的位置转移到图5的左边。
图5的布置具有许多问题。首先,为了判断是否需要加垫片,通常需要在压缩机部分或完全组装时检查压缩机。如果需要调整涡盘之间的间隔,必需首先移除静涡盘,且然后移除动涡盘。随后,必须移除轴承24且然后最终能够如图5所示定位选定的垫片。在这个程序之后,零件必须被重新组装且测试该压缩机。如果加垫片是不正确的,必须重复该程序。应了解这个过程是过度耗时的。还应当指出的是移除和替换压缩机的零件(诸如轴承24和动涡盘26)的程序本身可引入动涡盘与静涡盘的轴向间隔中小的不对准。
其次,垫片本身必须精确地制造,否则在其插入于驱动轴14与轴承24之间时会在压缩机内产生未对准。即,如果垫片的端面并不彼此平行,那么当垫片被放置就位时,其会造成动涡盘的角移位。这种角移位被称作晃动(swash)。晃动造成涡盘壁之间形成角度且因此会降低效率,因为允许流体在壁之间渗漏。晃动也可造成在顶端密封件与相对涡盘之间不规则的间隔。由晃动造成的问题进一步加剧,因为垫片38位于在径向相对靠近压缩机的中心轴线C处。因此,如果垫片的端面不平行,其产生动涡盘相对较大的角未对准。
本发明至少寻求减轻与现有技术相关联的问题中一个或多个。
发明内容
本发明提供一种涡旋压缩机,包括外壳;动涡盘;静涡盘;驱动轴,其具偏心轴部分使得该偏心轴部分的旋转给予该动涡盘相对于该静涡盘的盘旋运动;以及,至少一个轴向垫片,其位于该静涡盘与该外壳之间用于相对于该动涡盘在轴向间隔该静涡盘。
本发明还提供一种组装涡旋压缩机的方法,该方法包括循序执行的以下步骤:在涡旋压缩机的外壳中相对于驱动轴的偏心轴部分支承动涡盘;将至少一个选定轴向垫片定位相对于外壳或静涡盘就位;以及,将该静涡盘固定到外壳使得在静涡盘与动涡盘之间的轴向间隔和/或角对准由该至少一个轴向垫片的轴向厚度确定。
本发明还提供一种调整涡旋压缩机的静涡盘与动涡盘之间的轴向间隔和/或角对准的方法,该方法包括:从涡旋压缩机的外壳移除静涡盘;用不同轴向厚度的一个或多个轴向垫片来替换在外壳与静涡盘之间的一个或多个轴向垫片;以及,将静涡盘固定到外壳上。
本发明还提供一种用于组装涡旋压缩机的套件,包括外壳;动涡盘;静涡盘;驱动轴,其具偏心轴部分使得偏心轴部分的旋转给予动涡盘相对于静涡盘的盘旋运动;以及,多个不同轴向厚度的轴向垫片,其用于在轴向间隔和/或角对准所述静涡盘与所述动涡盘,其中一个或多个选定的轴向垫片可位于所述静涡盘与所述外壳之间用于正确地间隔和/或角对准所述静涡盘与所述动涡盘。
在附属权利要求中限定本发明的其它优选和/或可选方面。
附图说明
为了使本发明更好地理解,现将参看附图来描述本发明的实施例,仅以举例说明的方式给出本发明的实施例,在附图中:
图1示出穿过涡旋压缩机所截取的截面图;
图2是定位在涡旋压缩机外壳中之前的垫片的透视图;
图3是就位的垫片的透视图;
图4是示出就位的垫片的截面图;以及
图5示出穿过现有技术涡旋压缩机所截取的截面图。
具体实施方式
图1中示出涡旋压缩机40。涡旋压缩机40与涡旋压缩机10的等同且在上文中关于图5描述的特征给予相同的附图标记且将不再详细地描述。
涡旋压缩机40包括:外壳12、动涡盘26和静涡盘41。驱动轴14具有偏心轴部分18,使得偏心轴部分的旋转给予动涡盘相对于静涡盘的盘旋运动。至少一个轴向垫片42位于静涡盘与外壳之间用于相对于动涡盘间隔该静涡盘。当涡旋压缩机40组装和测试且需要执行加垫片时,静涡盘被移除且如图所示定位选定垫片。无需移除动涡盘26和轴承24来执行加垫片且因此该程序与关于图5所示的压缩机在上文中描述的程序相比耗时更少。
仅需要单个轴向垫片来相对于动涡盘来间隔该静涡盘。如果仅提供单个垫片,该垫片优选地为环形。在优选布置中,多个轴向垫片42绕静涡盘41的圆周定位成一个垫片与相邻垫片相隔大体上相等的角度。在图1的布置中,四个轴向垫片42设于静涡盘周围,一个垫片与相邻垫片相隔大约90度。在图1中仅可看到两个这样的垫片。
静涡盘41包括与动涡盘26合作的径向内部和固定到外壳12上的径向外部。径向内部通常包括圆形基板44和垂直于圆形基板44延伸的静涡盘壁34。静涡盘的外径向部包括在径向向外延伸的环形凸缘46用于固定到外壳12上。凸缘46包括四个贯通孔50且外壳包括四个互补的闭合孔52用于接纳相应紧固构件48以用于将凸缘紧固到外壳12上。
作为图1的补充,在图2至图4中更特别地示出,每个垫片42包括第一贯通孔54,其适于与凸缘46的贯通孔50和外壳12的闭合孔52对准以接纳相应紧固构件48用于将垫片42固定于该静涡盘41与外壳12之间就位。垫片42包括第二贯通孔55用于接纳保持构件56以在将凸缘固定到外壳上之前将垫片保持就位。如在图2和图3中示出,垫片42位于外壳12的凹口57中以防止垫片在周向的侧面移动。保持构件56插入通过贯通孔55且接合于外壳的第二闭合孔59中。保持构件56可具备多个弹性倒钩以在闭合孔59中与外壳12接合。保持构件56与凹口57的布置用于在将静涡盘固定到外壳上之前保持垫片就位。
尽管在附图中未示出,静涡盘的凸缘46包括多个凹口,当静涡盘被固定到外壳上时,这些凹口容纳保持构件的头部。因此,凸缘可被安放成与垫片齐平且因此可仅由垫片来控制静涡盘的轴向间隔。
如果仅提供单个环形垫片,尽管这在当前并非优选的,其位于静涡盘的外径向部。因此,如果垫片的轴向端面并未精确地彼此平行,对静涡盘相对于动涡盘的角对准的影响相对较小,特别是当与现有技术布置相比时。
在图1至图4所示的优选实施例中,通过选择具有适当且相等轴向厚度的四个垫片中的每一个来控制静涡盘与动涡盘的轴向间隔。举例而言,如果需要移动静涡盘远离该动涡盘25μm的轴向距离,那么25μm的四个垫片固定于静涡盘41与外壳12之间。如果垫片中的任一个由于制造误差而不是精确的25μm,其对于静涡盘的角对准具有相对很小的影响,因为固定垫片42中的每一个位于静涡盘的外径向部且因此距中心轴线C相对较大距离。
而且,在图1至图4所示的布置中,能通过在静涡盘与外壳之间固定具有不同厚度的选定垫片从而在静涡盘与外壳之间形成角度而主动地控制静涡盘的角对准或者‘倾斜’。举例而言,可通过将增加厚度的垫片定位于第一凹口57且将减小厚度垫片定位于直径上相对的凹口57而实现角对准。
如本文所用的,对于间隔和轴向间隔的提及预期是指整个静涡盘在轴向的间隔(即,静涡盘转移到右边或左边,如图1所示),且也指涡盘的多部分在轴向的间隔以纠正角对准。应了解向压缩机正确地加垫片可需要通过选择合适的垫片来控制两种形式的轴向间隔。
由于垫片42定位于静涡盘的外径向部,垫片42的厚度的变化产生静涡盘的角对准的相对较小变化。角移位约等于垫片的标称厚度除以垫片距中心轴线C的距离的 tan-1。因此,能实现静涡盘的精确加垫片,同时与现有技术相比,使用具有相对较大厚度公差且相对更厚且更易于处置和使用的垫片。由于能更精确地设置静涡盘与动涡盘的间隔,因此能设计具有减小运转间隙的压缩机,其改进了总效率,
在图1的布置中,每个垫片42由离散周向或直的切向(straight tangential)区段形成。由于每个垫片比静涡盘的整个圆周相对更短,因此能调整静涡盘以实现角对准同时维持静涡盘与垫片之间充分的接触面积。就此而言,优选地每个垫片具有相对于静涡盘的圆周不超过大约20度的角范围。以此方式,在垫片与静涡盘之间的接触面积可充分地维持,假定:首先在角对准之后实际上在静涡盘与外壳之间生成相对较小的角度,和其次部件的少量挠性。
在图5所示的现有技术压缩机中,静涡盘28可仅在一个位置相对于该外壳固定。因此,在静涡盘与外壳之间的界面由O形环密封,当静涡盘被固定到外壳时,O形环被压缩抵靠外壳的轴向端面。在图1的压缩机中,静涡盘41可在轴向在多个不同相对位置的任一位置相对于外壳间隔开。因此,为了在表面之间密封,静涡盘41包括凹口,凹口在径向打开且接纳O形环56,O形环56被压缩抵靠该外壳的朝向内的表面。以此方式,O形环56可在静涡盘与外壳的多个相对位置密封静涡盘与外壳之间的界面。
在图1中,静涡盘41与动涡盘26每一个都形成为整体结构,例如通过铸造。但是,涡盘中的每一个可由多于一个的工件形成。举例而言,静涡盘的径向内部可由一个工件形成且静涡盘的径向外部可由另一工件形成。
涡旋压缩机可以套件形式供应,包括多个不同厚度垫片42用于以不同的相应轴向距离来组装或调整静涡盘41与外壳12的间隔。可选择适当厚度的垫片且将其放置于静涡盘与外壳之间以正确地间隔静涡盘41与动涡盘26。对于典型大小的涡盘,该套件可供应带有任何增量在大约25μm与100μm之间的1mm与10mm之间的垫片。在特定实例中,提供垫片,其厚度在5.725mm与6.025mm之间,具有25μm的增量。有利地,该套件具备两种类型垫片的组合。第一类型的垫片相对较薄且用于产生精细增量变化。第二类型的垫片相对较厚的且用于产生相对粗增量变化。第二类型的垫片可例如以100μm增量从大约1mm增加至2mm。第一类型包括25μm、50μm与75μm的垫片。因此,当总体上需要更少的垫片时,第一类型的垫片和第二类型的垫片可组合地用于实现以25μm增量在1mm与2mm之间的任何选定间隔。
如果使用第一类型垫片与第二类型的垫片的组合,由于第一类型垫片较薄且更脆弱,第二类型的垫片安装于第一类型的垫片上方且保护第一类型的垫片从而防止在组装期间损坏。不希望提供小于25μm厚度的垫片以最小化处理期间损坏垫片的风险且降低操作者切割到他们本身的风险。
现将描述组装涡旋压缩机40的方法。该方法包括循序执行的以下步骤。由轴承24相对于驱动轴14的偏心轴部分18支承动涡盘26。轴向垫片定位凹口57中相对于外壳就位且用保持构件56保持。用紧固构件48将静涡盘固定到外壳使得在静涡盘41与动涡盘26之间的轴向间隔由轴向垫片的轴向厚度确定。
可通过以下步骤来调整在静涡盘28与动涡盘26之间的轴向间隔和角对准:从外壳12移除静涡盘;用不同轴向厚度的另外的轴向垫片来替换在外壳与静涡盘之间的轴向垫片中的一个或多个;以及将静涡盘固定到外壳上。
虽然涡旋压缩机通常操作用于泵送流体,替代地,当加压流体用于给予动涡盘相对于静涡盘的盘旋运动时其可作为发电机操作以用于发电。本发明预期涵盖使用涡旋压缩机来进行泵送和生成能量。
Claims (9)
1.一种涡旋压缩机,包括:
外壳;
动涡盘;
静涡盘;
驱动轴,其具偏心轴部分使得所述偏心轴部分的旋转给予所述动涡盘相对于所述静涡盘的盘旋运动;以及
多个轴向垫片,所述轴向垫片绕所述静涡盘的圆周定位成一个轴向垫片与相邻轴向垫片相隔相等的角度,而且所述轴向垫片位于所述静涡盘与所述外壳之间用于相对于所述动涡盘在轴向方向间隔所述静涡盘。
2.根据权利要求1所述的涡旋压缩机,其特征在于,所述轴向垫片中的至少一个适于在轴向方向相对于所述动涡盘间隔所述静涡盘和/或相对于所述动涡盘有角度地对准所述静涡盘。
3.根据权利要求1 或 2所述的涡旋压缩机,其特征在于,所述静涡盘包括径向内部和径向外部,所述径向内部包括静涡盘壁,所述静涡盘壁与所述动涡盘的动涡盘壁合作,所述径向外部用于固定到所述外壳,以及所述轴向垫片中的至少一个位于所述静涡盘的所述径向外部与所述外壳之间。
4.根据权利要求1或2所述的涡旋压缩机,其特征在于,所述外壳和/或所述静涡盘包括用于将所述轴向垫片中的至少一个定位在所述静涡盘与所述外壳之间就位的装置。
5.根据权利要求4所述的涡旋压缩机,其特征在于,所述轴向垫片中的至少一个具有贯穿它的孔,用于接纳紧固构件来将所述静涡盘紧固到所述外壳。
6.根据权利要求4所述的涡旋压缩机,其特征在于,所述轴向垫片中的至少一个具有所有贯穿它的孔,用于接纳保持构件来在所述静涡盘固定到所述外壳期间保持这一轴向垫片就位。
7.根据权利要求1或2所述的涡旋压缩机,其特征在于,所述外壳与所述静涡盘之一包括环形凹口,所述环形凹口在径向打开用于接纳密封构件,所述密封构件被压缩抵靠所述外壳与所述静涡盘中的另一个,用于在具有不同厚度的所述多个轴向垫片中的任何一个轴向垫片位于所述静涡盘与所述外壳之间时所述静涡盘与所述外壳之间的密封。
8.一种组装涡旋压缩机的方法,所述方法包括循序执行的以下步骤:
在所述涡旋压缩机的外壳中相对于驱动轴的偏心轴部分支承动涡盘;
将多个轴向垫片相对于所述压缩机的中心轴线定位成一个轴向垫片与相邻轴向垫片相隔相同的角度,从而相对于所述外壳或所述涡旋压缩机的静涡盘就位;以及
将所述静涡盘固定到所述外壳使得在所述静涡盘与所述动涡盘之间的轴向间隔和/或角对准由所述轴向垫片中至少一个的轴向厚度确定。
9.一种调整涡旋压缩机的静涡盘与动涡盘之间的轴向间隔和/或角对准的方法,其中所述压缩机包括多个轴向垫片,所述轴向垫片绕所述静涡盘的圆周定位成一个轴向垫片与相邻轴向垫片相隔相等的角度,所述方法包括:
从所述涡旋压缩机的外壳移除静涡盘;
用不同轴向厚度的一个或多个轴向垫片来替换在所述外壳与所述静涡盘之间的一个或多个轴向垫片;以及,
将所述静涡盘固定到所述外壳上。
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US9328730B2 (en) * | 2013-04-05 | 2016-05-03 | Agilent Technologies, Inc. | Angular synchronization of stationary and orbiting plate scroll blades in a scroll pump using a metallic bellows |
US9366255B2 (en) * | 2013-12-02 | 2016-06-14 | Agilent Technologies, Inc. | Scroll vacuum pump having external axial adjustment mechanism |
US20170067457A1 (en) * | 2015-09-09 | 2017-03-09 | Denso International America, Inc. | Variable compressor |
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