CN103195714A - Compressor having flexible thrust bearing structure - Google Patents
Compressor having flexible thrust bearing structure Download PDFInfo
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- CN103195714A CN103195714A CN2013100037779A CN201310003777A CN103195714A CN 103195714 A CN103195714 A CN 103195714A CN 2013100037779 A CN2013100037779 A CN 2013100037779A CN 201310003777 A CN201310003777 A CN 201310003777A CN 103195714 A CN103195714 A CN 103195714A
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Abstract
The invention relates to a compressor having a flexible thrust bearing structure. In one method, provided is a bearing housing which may include a body part, a hub part and a thrust bearing structure. The body part may include a first annular surface which faces inward radially. The structure may be radially extended outward from the body part. The hub part may be axially extended from the body part and may include a second annular surface which faces inward radially and is suitable for rotatably supporting a shaft. The thrust bearing structure may axially extend from the body part and may include an outer surface, a thrust surface, an inner surface, and undermining characteristics formed in one of the outer surface and the inner surface. The undermining characteristics may define a suspension part of the thrust bearing structure.
Description
The cross reference of related application
The application requires the U.S. Provisional Application No.61/583 of submission on January 6th, 2012, the U. S. application No.13/711 that on December 11st, 916 and 2012 submitted to, 205 rights and interests.Whole disclosures of above-mentioned application are incorporated in herein by reference at this.
Technical field
The disclosure relates to a kind of compressor with flexible thrust supporting structure.
Background technique
This part provides the background information relevant with the disclosure but may not be prior art.
Environmental control system such as heat pump, refrigeration system, air-conditioning system or any other working fluid cycles system can comprise the fluid circuit that has outdoor heat exchanger, indoor heat exchanger, is arranged on the bloating plant between indoor heat exchanger and the outdoor heat exchanger and makes the compressor that working fluid (for example refrigeration agent or carbon dioxide) circulates between indoor heat exchanger and outdoor heat exchanger.What expect is that the efficient and operation reliably of compressor can provide cooling as required effectively and efficiently and/or add thermal effect to guarantee the environmental control system that compressor wherein is installed.In addition, to life-span that reduces to prolong compressor and environmental control system of the wearing and tearing of compressor part.
Summary of the invention
This part provides the general introduction to cardinal principle of the present disclosure, and is not to be the full disclosure of four corner of the present disclosure or its all features.
In a mode, the disclosure provides a kind of thrust supporting structure be used to the compressor with first working component and second working component.The thrust supporting structure can comprise axial vane surface to thrust surfaces, first surface and second surface and annular undercut feature.The thrust surfaces structure can cause and support one in described first working component and second working component.First surface can be adjacent with thrust surfaces.Second surface can be adjacent with thrust surfaces.In some embodiments, annular undercut feature can be formed in first surface and the second surface only in one.In first surface and the second surface described one can comprise first sagittal plane between first axial end that is arranged on thrust surfaces and undercut feature in the axial direction to portion and be arranged to second sagittal plane adjacent with second axial end of undercut feature to portion.Described second sagittal plane can be spaced apart with driving shaft bearing to portion.
In other embodiments, first surface and second surface all can comprise the undercut feature that is formed on wherein.
In some embodiments, first surface and second surface can be roughly coaxial annular surface.
In some embodiments, undercut feature can be formed in first annular surface, and first annular surface can radially inwardly arrange with respect to second annular surface.
In some embodiments, undercut feature can comprise and first annular surface and the second annular surface almost parallel and the coaxial surface that extends axially.
In some embodiments, undercut feature can comprise the V-arrangement cross section.In other embodiments, undercut feature can comprise U-shaped cross-section.
In some embodiments, the radial depth of undercut feature can be less than or equal to about 1/5th of axial distance between thrust surfaces and the undercut feature.In other embodiments, the radial depth of undercut feature can between the axial distance between thrust surfaces and the undercut feature about 1/5th and about two times between.In other embodiments, the radial depth of undercut feature can be between about two times and about octuple of the axial distance between thrust surfaces and the undercut feature.In other embodiments, the radial depth of undercut feature can be more than or equal to about octuple of the axial distance between thrust surfaces and the undercut feature.
In some embodiments, undercut feature can comprise about at least 7.62 millimeters axial dimension.In some embodiments, undercut feature can comprise about 2.5 millimeters or bigger axial dimension.Axial dimension can be the axial distance between the axial distal end edge of thrust surfaces and undercut feature.Alternately, axial dimension can be the top edge of undercut feature and the axial distance between the lower limb.
In another way, the disclosure provides a kind of bearing housing that can comprise main body portion, hub portion and thrust supporting structure.Main body portion inwardly can comprise radially towards first annular surface.Hub portion can from main body portion axially extend and can comprise be suitable for back shaft rotatably radially inwardly towards second annular surface.The thrust supporting structure can from main body portion axially extend and can comprise outer ring surface, axial vane surface to thrust surfaces, interior annular surface and be formed on outer ring surface and interior annular surface one in undercut feature.Undercut feature can limit the portion that suspends of thrust supporting structure.Undercut feature can with the first annular surface direct neighbor.
In some embodiments, undercut feature can be formed in the outer ring surface.In other embodiments, undercut feature can be formed in the interior annular surface.In other mode of execution, undercut feature can be formed in internal surface and the outer surface and can limit a pair of portion that suspends of thrust supporting structure.
In some embodiments, undercut feature can comprise and interior annular surface and outer ring surface almost parallel and the coaxial surface that extends axially.
In some embodiments, first annular surface of the interior annular surface of thrust supporting structure and main body portion roughly alignment radially each other.
In some embodiments, hub portion and thrust supporting structure can form with main body portion.
In another mode, the disclosure provides a kind of scroll machine (for example scroll compressor or scroll expander), and it can comprise quiet whirlpool dish, movable orbiting scroll, live axle and bearing housing.Movable orbiting scroll can engage and can be configured to moving with respect to the coiling of quiet whirlpool with quiet whirlpool dish.Live axle can engage movable orbiting scroll drivingly.Bearing housing can comprise main body portion, from the hub portion that main body portion axially extends and the thrust supporting structure that axially extends from main body portion.Hub portion and thrust supporting structure can form with main body portion.Hub portion can comprise first annular surface of supporting driving shaft.The thrust supporting structure can comprise second annular surface, the 3rd annular surface and thrust surfaces.Thrust surfaces can axially support movable orbiting scroll.The thrust supporting portion can comprise the annular undercut feature that is formed in one in second annular surface and the 3rd annular surface.
In some embodiments, main body portion can comprise with the undercut feature direct neighbor radially inwardly towards annular surface.
Other application will become obvious from the description that provides at this.Description in this summary and concrete example intention only are the purpose that illustrates, and do not lie in restriction the scope of the present disclosure.
Description of drawings
Accompanying drawing described here only is used for the purpose that illustrates of selected mode of execution rather than all possible mode of execution, and is not to be intended to limit the scope of the present disclosure.
Fig. 1 is the sectional view according to the compressor of principle of the present disclosure;
Fig. 2 is the plan view of the main bearing housing of Fig. 1;
Fig. 3 is the sectional view of the main bearing housing of Fig. 1;
Fig. 4 is the detailed drawing of the part that is designated thin portion 4 in Fig. 3 of main bearing housing;
Fig. 5 be the movable orbiting scroll member when static with respect to the main bearing housing the main bearing housing and the sectional view of movable orbiting scroll member;
Fig. 6 is movable orbiting scroll member during with respect to main bearing housing moving, the main bearing housing of Fig. 5 and the exaggerative schematic partial section of movable orbiting scroll member;
Fig. 7 is the sectional view according to another main bearing housing of principle of the present disclosure;
Fig. 8 is the detailed drawing of the part that is identified as thin portion 8 in Fig. 7 of main bearing housing;
Fig. 9 is the sectional view according to the another main bearing housing of principle of the present disclosure;
Figure 10 is the detailed drawing of the part that is identified as thin portion 10 in Fig. 9 of main bearing housing;
Figure 11 is the partial section that has according to the another main bearing housing of the undercut feature of principle of the present disclosure;
Figure 12 is the partial section that has according to the another main bearing housing of another undercut feature of principle of the present disclosure; And
Figure 13 is the partial section that has according to the another main bearing housing of another undercut feature of principle of the present disclosure.
Corresponding reference character is represented corresponding component in these views of accompanying drawing.
Embodiment
Now with reference to the accompanying drawings illustrative embodiments is described more fully.
Provide illustrative embodiments to make that the disclosure will be detailed, and will fully scope have been conveyed to those skilled in the art.Many details such as the example of concrete parts, equipment and method have been proposed so that the detailed understanding to mode of execution of the present disclosure to be provided.To be apparent that to those skilled in the art needn't use detail, illustrative embodiments to implement and not should be understood in many different modes is restriction to the scope of the present disclosure.In some illustrative embodiments, known process, known device structure and technique known are not described in detail.
Term only is used for describing specific illustrative embodiments and is not to be intended to limit as used herein.As used herein, unless context offers some clarification in addition, do not indicate singulative or the noun of plural form and can expect equally and comprise plural form.Term " comprise " and " having " be inclusive and thereby indicated the existence of described feature, integral body, step, operation, element and/or parts, but do not get rid of the existence of group of one or more other features, integral body, step, operation, element, parts and/or one or more other features, integral body, step, operation, element, parts or additional.Unless specify as execution sequence, method step described here, process and operation should not be construed as must need its particular order of describing or illustrate with institute to carry out.It will also be appreciated that and to use step additional or that substitute.
When element or layer are mentioned as and are in " on another element or layer ", " being engaged to another element or layer ", " being connected to another element or layer " or " being attached to another element or layer ", it can be directly on other elements or layer, directly be engaged to, be connected to or coupled to other elements or layer, perhaps, can there be medium element or layer.On the contrary, when element is mentioned as " directly on another element or layer ", " directly being engaged to another element or layer ", " directly being connected to another element or layer " or " directly being attached to another element or layer ", can there be medium element or layer.Be used for describing the relation between the element other words (for example " between " and " directly between ", " adjacent " and " direct neighbor " etc.) should understand in a similar manner.As used herein, term " and/or " comprise be associated enumerate in the part one or more arbitrarily and all combinations.
Although can use term such as first, second, third, etc. that various elements, parts, zone, layer and/or part are described at this, these elements, parts, zone, layer and/or partly should do not limited by these terms.These terms can only be used for distinguishing an element, parts, zone, layer or part and another zone, layer or part.Unless context offers some clarification on, when using, this is intended to not refer to order or order such as the term of " first ", " second " and other digital terms and so on.Therefore, first element that describes below, parts, zone, layer or part can be known as second element, parts, zone, layer or part under the prerequisite of the teaching that does not break away from illustrative embodiments.
For convenience, such as " interior ", " outward ", " below ", " following ", D score, " top ", " on " etc. and so on the space relative terms can use to describe an element as shown in the figures or feature with respect to the relation of another element or feature at this.Except orientation illustrated in the accompanying drawings, the space relative terms can expect comprise use or operation in the different azimuth of equipment.For example, if with the equipment in accompanying drawing reversing, then be described to be in other elements or the element of feature " below " or " following " and will be oriented and be in other elements or feature " top ".Therefore, exemplary term " following " can comprise top and following orientation.Therefore, equipment can be otherwise (revolve turn 90 degrees or at other places, orientation) directed and as used herein the relative description in space can otherwise understand.
Referring to figs. 1 through Fig. 6, a kind of compressor 10 is provided, it can comprise closed housing assembly 12, motor sub-assembly 14, compressing mechanism 16, clutch shaft bearing frame set 18 and the second bearing housing assembly 19.
Quiet whirlpool dish 56 can comprise end plate 70 and the spiral wrap of giving prominence to from end plate 70 72 downwards.Spiral wrap 72 can engage engagingly with the spiral wrap 60 of movable orbiting scroll 54, thereby has formed the fluid bag portion of a series of movements.By spiral wrap 60,72 and the volume of the fluid bag portion that limits of end plate 58,70 in the whole compression cycle of compressing mechanism 16, move to radially neutral position (for example being under the intermediate pressure that can be higher than suction pressure) along with they (for example are under the suction pressure) from the radially outer position, (for example be under the discharge pressure that can be higher than intermediate pressure) to the inner radial position and can reduce.
End plate 70 can comprise discharge passage 74 and annular recess 76.Be communicated with at least one fluid bag portion at inner radial position discharge passage 74, and compression working fluid (be in or near discharge pressure) can be flow through wherein and flow in the discharge chamber 28.Annular recess 76 can be admitted unsteady black box 78 at least in part and can cooperate to limit axial bias chamber 80 with black box 78 between annular recess 76 and black box 78.Bias chamber 80 can be admitted the intermediate pressure fluid from the fluid bag portion that mediates.Intermediate pressure fluid in the bias chamber 80 and the clean axial bias power of pressure official post between the fluid in the suction chamber 30 are applied on the quiet whirlpool dish 56, thereby coil 56 to promote the sealing relationship between movable orbiting scroll 54 and the quiet whirlpool dish 56 towards the quiet whirlpool of movable orbiting scroll 54 pushings.
Clutch shaft bearing frame set 18 can comprise bearing housing 82, bearing 84, sleeve steering spare or lining 86 and fastening piece 88.Bearing housing 82 can ccontaining bearing 84 and supporting driving shaft 48 so that live axle 48 rotate with respect to it.Bearing housing 82 also can support movable orbiting scroll 54 so that movable orbiting scroll 54 is done the moving motion with respect to bearing housing 82.
As shown in Figure 1 to Figure 3, bearing housing 82 can comprise body 90, a plurality of shank 92, the 94(Fig. 3 of hub portion) and thrust support/supporting structure 96.Body 90 can be limited, be had annular inner surface 98(Fig. 3 by longitudinal axis A1) the general toroidal member.Internal surface 98 can limit the recess 99 that the hub portion 64 of movable orbiting scroll 54 can extend therein, as shown in Figure 5.Shank 92 can extend radially outwardly and can engagement with shell 20 from body 90, as shown in Figure 1.Each shank in the shank 92 can comprise having the mode that is suitable for being threaded and admit fastening piece 88(Fig. 1) the corresponding foot 100 in aperture 102.Quiet whirlpool dish 56 can be fastened to foot 100 by lining 86 and fastening piece 88.
As shown in Figure 3 and Figure 4, circular groove or undercut feature 112(Fig. 3 and Fig. 4) can be formed in the internal surface 108 of thrust supporting structure 96 and/or in the internal surface 98 of body 90 by casting, machining and/or other modes.Undercut feature 112 can comprise and extends axially surface 114, upper surface 116 and lower surface 118.Extend axially the annular suspension portion 120 that surface 114, upper surface 116 and internal surface 108 can cooperate to form thrust supporting structure 96.Although not shown in Fig. 3, in some embodiments, another undercut feature can be formed in the outer surface 106 of thrust supporting structure 96.
In the specific implementations shown in Fig. 3 and Fig. 4, extending axially surface 114 can depart from approximately for example two millimeters with internal surface 108 radially outwards of thrust supporting structure 96.Upper surface 116 can axially depart from about four millimeters (perhaps about 4.08 millimeters with thrust bearing surface 110, as shown in Figure 4), and upper surface 116 can with lower surface 118 axially depart from about 13 and 1/4th millimeters (or about 13.23 millimeters, as shown in Figure 4).Upper surface 116 and extend axially between the surface 114 and lower surface 118 can approximately be one and 1/2nd millimeter (1.5 millimeters) with the radius that extends axially between surperficial 114, as shown in Figure 4.The added size of exemplary bearing housing 82 shown in Figure 3 (representing with millimeter).Provide above-mentioned and/or at scale and the attach ratios of the exemplary dimensions shown in Fig. 3 and Fig. 4 with the various features of specific implementations that bearing housing 82 is shown.Should be understood that in other embodiments, one or more size and/or ratio can be with different in size and the ratio shown in Fig. 3 and Fig. 4.
In some embodiments, undercut feature 112 for example can reduce the local stiffness of thrust supporting structure 96 near internal surface 108 and/or thrust bearing surface 110 places or internal surface 108 and/or thrust bearing surface 110.This can reduce thrust load in the thrust supporting structure 96, that be applied on the thrust supporting structure 96 in the operation period of compressor 10 owing to movable orbiting scroll 54 and cause contact stress near internal surface 108 and/or thrust bearing surface 110 places or internal surface 108 and/or thrust bearing surface 110.In some embodiments, the portion that suspends 120 of thrust supporting structure 96 can be flexible and enough big thrust loads that can apply thereon in response to movable orbiting scroll 54 and flexibly deflection downwards.
Fig. 6 is the exaggerative diagram of deflection of the end plate 58 of movable orbiting scroll 54, and in the operation period of compressor 10, this deflection can be coiled with respect to quiet whirlpool at movable orbiting scroll 54 and be taken place when 56 movings are translation rotation.As shown in Figure 6, end plate 58 can be tortuous or be deflected into thrust surfaces 62 and be the structure that roughly protrudes.
Along with movable orbiting scroll 54 around longitudinal axis A1 moving, compare end plate and second portions 132 first portion 130 angle ground relative (namely departing from 180 degree), the first portion 130 of end plate 58 can be applied to bigger axial downward force on the thrust supporting structure 96.The zone that is defined as first portion 130 and second portion 132 of end plate 58 can change with track moving pattern around longitudinal axis A1 with respect to thrust supporting structure 96.
When movable orbiting scroll 54 coils 56 movings with respect to quiet whirlpool, end plate 58 can be applied to relatively large axial force on the thrust supporting structure 96 near first portion 130 places or first portion 130, and can apply less relatively axial force near second portion 132 places or second portion 132 or not apply axial force.In near the rigidity that reduces in thrust supporting structure 96 internal surface 108 and thrust bearing surface 110 places or internal surface 108 and the thrust bearing surface 110 part corresponding to first portion 130 of the portion of suspending 120 is being applied under near the effect of the relatively large thrust load first portion 130 places or the first portion 130 can flexibly deflect down.This stress in thrust supporting structure 96 is reduced at least partly and make on the thrust bearing surface 110 and/or the thrust surfaces 62 of movable orbiting scroll 54 on wearing and tearing reduce.
With reference to Fig. 7 and Fig. 8, another bearing housing 182 will be described.Except the following describes and/or accompanying drawing shown in any exceptional situation, the 26S Proteasome Structure and Function of bearing housing 182 is can be roughly similar with the 26S Proteasome Structure and Function of above-mentioned bearing housing 82.Therefore, can not describe in detail similar feature again.Bearing housing 182 can replace bearing housing 82 to be attached in the compressor 10.
Bearing housing 182 can comprise body 190, a plurality of shank 192, hub portion 194 and thrust supporting structure 196.Body 190 can be has general toroidal member annular inner surface 198, that limited by longitudinal axis A2.Thrust supporting structure 196 can be for being limited by longitudinal axis A2 and from the body 190 general toroidal member that (with respect to view shown in Figure 7) extend that axially makes progress.Thrust supporting structure 196 can comprise radially-outer surface 206, inner radial surface 208 and thrust bearing surface 210.
First circular groove or undercut feature 212 can be formed in the internal surface 208 of thrust supporting structure 196 and/or in the internal surface 198 of body 190 by casting, machining and/or other modes.First undercut feature 212 can comprise and extends axially surface 214, upper surface 216 and lower surface 218.Extend axially the first annular suspension portion 220 that surface 214, upper surface 216 and internal surface 208 can cooperate to form thrust supporting structure 196.
Second circular groove or undercut feature 222 can be formed in the outer surface 206 of thrust supporting structure 196 by casting, machining and/or other modes.Second undercut feature 222 can comprise and extends axially surface 224, upper surface 226 and lower surface 228.Extend axially the second annular suspension portion 230 that surface 224, upper surface 226 and outer surface 206 can cooperate to form thrust supporting structure 196.
First undercut feature 212 and second undercut feature 222 for example can reduce the local stiffness of thrust supporting structure 196 near outer surface 206, internal surface 208 and/or thrust bearing surface 210 places or outer surface 206, internal surface 208 and/or thrust bearing surface 210.This can near outer surface 206, internal surface 208 and/or thrust bearing surface 210 places or outer surface 206, internal surface 208 and/or thrust bearing surface 210, reduce in the thrust supporting structure 196, owing to movable orbiting scroll 54 is applied to the local at least contact stress that the thrust load on the thrust supporting structure 196 causes in the operation period of compressor 10.In some embodiments, first of thrust supporting structure 96 suspend one in the portion 230 or all both can be flexible and enough big thrust loads that can apply thereon in response to movable orbiting scroll 54 and flexibly deflection downwards of portion 220 and second that suspend.
Fig. 7 and Fig. 8 show the size (in millimeter) of the illustrative embodiments of bearing housing 182.Scale and the attach ratios of the various features of the specific implementations of exemplary dimensions so that bearing housing 182 to be shown are provided.Should be understood that in other embodiments, one or more size and/or ratio can be with different in size and the ratio shown in Fig. 7 and Fig. 8.For example, in some embodiments, any or all two the axial dimension in first and second undercut feature 212,222 can comprise about at least 7.62 millimeters axial dimension.Yet in other embodiments, any or all two the axial dimension in first and second undercut feature 212,222 can comprise the axial dimension less than 7.62 millimeters.
With reference to Fig. 9 and 10, another bearing housing 282 will be described.Except the following describes and/or accompanying drawing shown in any exceptional situation, the 26S Proteasome Structure and Function of bearing housing 282 is can be roughly identical with the 26S Proteasome Structure and Function of above-mentioned bearing housing 182.Therefore, can not describe in detail similar feature again.Bearing housing 282 can replace bearing housing 82,182 to be attached in the compressor 10.
Similar to bearing housing 182, bearing housing 282 can comprise from the body 290 thrust supporting structure 296 that (with respect to the view shown in Fig. 9) extend that axially makes progress.Thrust supporting structure 296 can comprise radially-outer surface 306, inner radial surface 308 and thrust bearing surface 310.First circular groove or undercut feature 312 can be formed in the internal surface 308 of thrust supporting structure 296 and/or in the internal surface 298 of body 290.Second circular groove or undercut feature 322 can be formed in the outer surface 306 of thrust supporting structure 296.
Fig. 9 and Figure 10 show the size (in millimeter) of the illustrative embodiments of bearing housing 282.Scale and the attach ratios of the various features of the specific implementations of exemplary dimensions so that bearing housing 282 to be shown are provided.Should be understood that in other embodiments, one or more size and/or ratio can be with different in size and the ratio shown in Fig. 9 and Figure 10.
With reference to Figure 11, another thrust supporting structure 496 will be described.Except the following describes and/or accompanying drawing shown in any exceptional situation, the 26S Proteasome Structure and Function of thrust supporting structure 496 can be roughly with above-mentioned thrust supporting structure 96,196,296 in any one 26S Proteasome Structure and Function similar.Therefore, can not describe in detail similar feature again.For example, thrust supporting structure 496 can be incorporated in the above-mentioned bearing housing 82,182,282 any one.
Thrust supporting structure 496 can comprise annular surface 507 and thrust bearing surface 510.Annular surface 507 shown in Figure 11 can or can be radially-outer surface (for example being similar to outer surface 106,206,306) for inner radial surface (for example being similar to internal surface 108,208,308).Undercut feature 512 can be formed in the annular surface 507.Undercut feature 512 can be V-arrangement roughly, and can comprise upper surface 516, lower surface 518 and top 520.Angle between upper surface 516 and the lower surface 518 can be less than or equal to 90 degree.Undercut feature 512 can form the portion that suspends 530 of thrust supporting structure 496.In some embodiments, the radial depth with respect to annular surface 507 at top 520 can be substantially bigger than upper end 517 and the axial distance between the thrust bearing surface 510 of upper surface 516.Additional flexibility or elastic deflection that this can further reduce the local stiffness at least in the thrust supporting structure 496 and can promote the portion of suspending 530.
Should be understood that in some embodiments, concrete shape and the ratio of undercut feature 512 can be different from above-mentioned shape and ratio.For example, in some embodiments, undercut feature 512 can be asymmetric.That is to say that in upper surface 516 and the lower surface 518 one can more tilt or more not tilt with respect to bearing housing 82,182,282 longitudinal axis A1, A2, A3 than in upper surface 516 and the lower surface 518 another.In some embodiments, lower surface 518 can be roughly parallel to longitudinal axis A1, A2, A3.Additionally or alternately, in upper surface 516 and the lower surface 518 can be longer than or be shorter than another in upper surface 516 and the lower surface 518.
With reference to Figure 12, another thrust supporting structure 596 will be described.Except the following describes and/or accompanying drawing shown in any exceptional situation, the 26S Proteasome Structure and Function of thrust supporting structure 596 can be roughly with above-mentioned thrust supporting structure 96,196,296,496 in any one 26S Proteasome Structure and Function similar.Therefore, can not describe in detail similar feature again.Thrust supporting structure 596 for example can be incorporated in the above-mentioned bearing housing 82,182,282 any one.
Thrust supporting structure 596 can comprise annular surface 607 and thrust bearing surface 610.Annular surface 607 shown in Figure 12 can or can be radially-outer surface (for example being similar to outer surface 106,206,306) for inner radial surface (for example being similar to internal surface 108,208,308).Undercut feature 612 can be formed in the annular surface 607.Undercut feature 612 can be V-arrangement roughly, and can comprise upper surface 616, lower surface 618 and top 620.Angle between upper surface 616 and the lower surface 618 can be more than or equal to 90 degree.Undercut feature 612 can form the portion that suspends 630 of thrust supporting structure 596.The radial depth of the undercut feature 612 roughly radial depth than undercut feature shown in Figure 11 512 is more shallow.
With reference to Figure 13, another thrust supporting structure 696 will be described.Except the following describes and/or accompanying drawing shown in any exceptional situation, the 26S Proteasome Structure and Function of thrust supporting structure 696 is can be roughly similar with above-mentioned thrust supporting structure 96,196,296,496,596 26S Proteasome Structure and Function.Therefore, can not describe in detail similar feature again.Thrust supporting structure 696 for example can be incorporated in the above-mentioned bearing housing 82,182,282 any one.
Thrust supporting structure 696 can comprise annular surface 707 and thrust bearing surface 710.Annular surface 707 shown in Figure 13 can or can be radially-outer surface (for example being similar to outer surface 106,206,306) for inner radial surface (for example being similar to internal surface 108,208,308).Undercut feature 712 can be formed in the annular surface 707.Undercut feature 712 can comprise upper surface 716, lower surface 718 and extend axially surface 720.Undercut feature 712 can be U-shaped roughly.Upper surface 716 and lower surface 718 can be roughly parallel to each other and thrust bearing surface 710 be approximately perpendicular to extend axially the surface 720.Undercut feature 712 can form the portion that suspends 730 of thrust supporting structure 696.In some embodiments, extend axially surface 720 the radial depth with respect to annular surface 707 and can be substantially equal to axial distance between upper surface 716 and the thrust bearing surface 710.In other embodiments, extend axially surface 720 with respect to the radial depth of annular surface 707 can less than or greater than the axial distance between upper surface 716 and the thrust bearing surface 710.
Should be understood that in some embodiments, concrete shape and the ratio of undercut feature 712 can be different from above-mentioned shape and ratio.For example, in some embodiments, undercut feature 712 can form and make surface 720 have bending or semi-circular cross-section profile.In some embodiments, the entire cross section profile of undercut feature 712 can be crooked or semicircle.In some embodiments, upper surface 716 and/or lower surface 718 can be angled with respect to longitudinal axis A1, A2, A3.
Provide the aforementioned description of mode of execution to be used for illustrating and purpose of description.Its intention is not is exhaustive or the restriction disclosure.For example, above-mentioned thrust supporting structure 96,196,296,496,596,696 and/or undercut feature 112,212,222,312,322,520,620,720 size, ratio, shape and/or structure can make modification or change to adapt to given application with respect to above-mentioned and/or size illustrated in the accompanying drawings, ratio, shape and/or structure.In addition, even without specifically illustrating or setting forth, be not limited to this specific implementations on each discrete component of a certain specific implementations or the features, in general, but can exchange and can use in selected mode of execution at where applicable.Above-mentioned each discrete component or feature can make a change in many ways.These modification and change and should not be considered to break away from the disclosure, and all these modification and change are intended to be included in the scope of the present disclosure.
Claims (26)
1. thrust supporting structure, described thrust supporting structure is used for having the compressor of first working component and second working component, and described thrust supporting structure comprises:
Axial vane surface to thrust surfaces, described thrust surfaces is configured to support one in described first working component and described second working component;
First surface, described first surface is adjacent with described thrust surfaces;
Second surface, described second surface is adjacent with described thrust surfaces;
The undercut feature of annular, described undercut feature be formed in described first surface and the described second surface only in one, in described first surface and the described second surface described one comprises first sagittal plane between first axial end that is arranged on described thrust surfaces and described undercut feature in the axial direction to portion and is arranged to second sagittal plane adjacent with second axial end of described undercut feature to portion that described second sagittal plane is spaced apart to portion and driving shaft bearing.
2. thrust supporting structure according to claim 1, wherein, described first surface and described second surface are annular surface.
3. thrust supporting structure according to claim 1, wherein, described undercut feature is formed in the described first surface, and described first surface radially inwardly arranges with respect to described second surface.
4. thrust supporting structure according to claim 1, wherein, described undercut feature comprises and described first surface and described second surface almost parallel and the coaxial surface that extends axially.
5. thrust supporting structure according to claim 1, wherein, described undercut feature comprises the V-arrangement cross section.
6. thrust supporting structure according to claim 1, wherein, described undercut feature comprises U-shaped cross-section.
7. thrust supporting structure according to claim 1, wherein, the radial depth of described undercut feature is less than or equal to about 1/5th of axial distance between described thrust surfaces and the described undercut feature.
8. thrust supporting structure according to claim 1, wherein, the radial depth of described undercut feature between the axial distance between described thrust surfaces and the described undercut feature about 1/5th and about two times between.
9. thrust supporting structure according to claim 1, wherein, the radial depth of described undercut feature is between about two times and about octuple of the axial distance between described thrust surfaces and the described undercut feature.
10. thrust supporting structure according to claim 1, wherein, the radial depth of described undercut feature is more than or equal to about octuple of the axial distance between described thrust surfaces and the described undercut feature.
11. thrust supporting structure according to claim 1, wherein, described undercut feature comprises about at least 2.5 millimeters axial dimension.
12. a bearing housing comprises:
Main body portion, described main body portion inwardly comprise radially towards first annular surface;
Hub portion, described hub portion from described main body portion axially extend and comprise be suitable for back shaft rotatably radially inwardly towards second annular surface;
The thrust supporting structure, described thrust supporting structure from described main body portion axially extend and comprise outer surface, internal surface, between described outer surface and described internal surface thrust surfaces and be formed on described outer surface and described internal surface one in undercut feature, described undercut feature limits the portion that suspends of described thrust supporting structure, described undercut feature and the described first annular surface direct neighbor.
13. bearing housing according to claim 12, wherein, described undercut feature is formed in the described outer surface.
14. bearing housing according to claim 12, wherein, described undercut feature is formed in the described internal surface.
15. bearing housing according to claim 14 also comprises another undercut feature that is formed in the described outer surface and limits another portion that suspends of described thrust supporting structure.
16. bearing housing according to claim 12, wherein, described outer surface and described internal surface are annular surface, and described thrust surfaces be axial vane surface to the surface.
17. bearing housing according to claim 12, wherein, the described internal surface of described thrust supporting structure roughly radially aligns each other with described first annular surface of described main body portion.
18. bearing housing according to claim 12, wherein, the radial depth of described undercut feature is less than or equal to about 1/5th of axial distance between described thrust surfaces and the described undercut feature.
19. bearing housing according to claim 12, wherein, the radial depth of described undercut feature between the axial distance between described thrust surfaces and the described undercut feature about 1/5th and about two times between.
20. bearing housing according to claim 12, wherein, the radial depth of described undercut feature is between about two times and about octuple of the axial distance between described thrust surfaces and the described undercut feature.
21. bearing housing according to claim 12, wherein, the radial depth of described undercut feature is more than or equal to about octuple of the axial distance between described thrust surfaces and the described undercut feature.
22. bearing housing according to claim 12, wherein, described hub portion and described thrust supporting structure and described main body portion form.
23. a scroll machine comprises:
Quiet whirlpool dish;
Movable orbiting scroll, described movable orbiting scroll engages and is configured to moving with respect to described quiet whirlpool coiling with described quiet whirlpool dish;
Live axle, described drive shaft ground engages described movable orbiting scroll;
Bearing housing, described bearing housing comprises main body portion, from the hub portion that described main body portion axially extends and the thrust supporting structure that axially extends from described main body portion, described hub portion and described thrust supporting structure and described main body portion form, described hub portion comprises first annular surface that supports described live axle, described thrust supporting structure comprises second annular surface, the 3rd annular surface and thrust surfaces, described thrust surfaces axially supports described movable orbiting scroll, and described thrust supporting structure comprises the undercut feature that is formed on the annular in one in described second annular surface and described the 3rd annular surface.
24. scroll machine according to claim 23, wherein, described second annular surface radially inwardly arranges with respect to described the 3rd annular surface, and, described second annular surface comprises described undercut feature, and described the 3rd annular surface does not comprise the undercut feature of annular.
25. scroll machine according to claim 23, wherein, described one in described second annular surface and described the 3rd annular surface roughly radially aligns with the interior annular surface of described main body portion.
26. scroll machine according to claim 23, wherein, described main body portion comprise with described undercut feature direct neighbor radially inwardly towards annular surface.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261583916P | 2012-01-06 | 2012-01-06 | |
| US61/583,916 | 2012-01-06 | ||
| US13/711,205 | 2012-12-11 | ||
| US13/711,205 US20130177465A1 (en) | 2012-01-06 | 2012-12-11 | Compressor with compliant thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103195714A true CN103195714A (en) | 2013-07-10 |
Family
ID=48718456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100037779A Pending CN103195714A (en) | 2012-01-06 | 2013-01-06 | Compressor having flexible thrust bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195714A (en) |
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| CN103807170A (en) * | 2014-03-11 | 2014-05-21 | 张云娣 | Ultrahigh-pressure and fluorine-free protection flexible scroll compressor |
| WO2020215724A1 (en) * | 2019-04-25 | 2020-10-29 | 艾默生环境优化技术(苏州)有限公司 | Main bearing seat for scroll compressor, and scroll compressor |
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Application publication date: 20130710 |