CN103075341B - Compressor - Google Patents
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- CN103075341B CN103075341B CN201110335051.6A CN201110335051A CN103075341B CN 103075341 B CN103075341 B CN 103075341B CN 201110335051 A CN201110335051 A CN 201110335051A CN 103075341 B CN103075341 B CN 103075341B
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- ring
- thrust surface
- cross slip
- main bearing
- compressor
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Abstract
The invention discloses a compressor, which comprises: a compression mechanism including a fixed compression member and a dynamic compression member; a main bearing housing having a thrust surface, wherein the moving compression member is seated on the thrust surface; an oldham ring supported by the main bearing housing and cooperating with the stationary compression member and the dynamic compression member, characterized in that an axial projection of the oldham ring partially coincides with an axial projection of a thrust surface of the main bearing housing. By using the technical scheme of the invention, a larger thrust surface can be obtained, so that the compression mechanism can operate more stably.
Description
Technical field
The present invention relates to a kind of compressor.
Background technique
In scroll compressor, in order to anti-fastening scroll element and dynamic scroll element relatively rotate, generally adopt cross slip-ring.When the drive mechanism operates, dynamic scroll element is centered by the axis determining scroll element, and the turning radius of setting eccentric distance does translational motion.The dynamic scroll element of cross slip-ring constraint makes its not rotation.By the translational motion of dynamic scroll element, at the compression chamber determining to be formed between the crimping of scroll element and dynamic scroll element continuously to central mobile.Along with movement, the volume of compression chamber reduces continuously, thus realizes compression.
Dynamic scroll element is seated on the thrust surface of the main bearing seat in scroll compressor usually.Thrust surface is formed dynamic scroll element and supports, and can ensure dynamic scroll element stable operation.In the ordinary course of things, the area of thrust surface is larger, more can form effective support to dynamic scroll element, thus ensures the stable operation of dynamic scroll element.
Owing to have employed the design of cross slip-ring, so the area of thrust surface can be subject to the restriction of the size of cross slip-ring usually.
Summary of the invention
Inventor, desirable to provide a kind of compressor, makes wherein main bearing seat obtain larger thrust surface, more stably runs to enable compression member.
Give hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.But, should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention is used for determining critical component of the present invention or pith, neither be intended to for limiting scope of the present invention.Its object is only provide about some concept of the present invention in simplified form, in this, as the preorder in greater detail provided after a while.
In view of the said circumstances of prior art, an object of this specification is to provide a kind of compressor, makes the area of thrust surface wherein exceed the restriction of the size of cross slip-ring, thus obtains larger thrust surface, more stably runs to enable compression member.
To achieve these goals, according to the one side of this specification, provide a kind of compressor, this compressor comprises: compressing mechanism, and it comprises determines compression member and dynamic compression member; Main bearing seat, it has thrust surface, and wherein, described dynamic compression member is seated on described thrust surface; Cross slip-ring, it is supported by described main bearing seat, and determines compression member with described and described dynamic compression member matches, and it is characterized in that, the axis projection of the axis projection of described cross slip-ring and the thrust surface of described main bearing seat partially overlaps.
Preferably, main bearing seat has groove below thrust surface, and cross slip-ring is assemblied in groove.
Preferably, the inner ring of cross slip-ring is long-round-shape, and when cross slip-ring carries out horizontal motion, the curved portion of the side of the inner ring of cross slip-ring and groove can match.
Preferably, the shape of groove and position allow cross slip-ring to be assembled to groove from thrust surface side.
Preferably, thrust surface is annular.
Preferably, the sectional shape of groove is arc.
Preferably, the region that the inner perimeter that the region occupied by outer perimeter of thrust surface is greater than cross slip-ring limits.
Preferably, compressor is rotary compressor.
Preferably, rotary compressor is scroll compressor.
In one or more embodiments of the present invention, the axis projection of the axis projection of cross slip-ring and the thrust surface of main bearing seat partially overlaps.Therefore, larger thrust surface can be obtained, more stably run to enable compression member.
Accompanying drawing explanation
The present invention can be better understood by reference to hereinafter given by reference to the accompanying drawings detailed description, wherein employs same or analogous reference character in all of the figs to represent identical or similar parts.Described accompanying drawing comprises in this manual together with detailed description below and forms a part for specification, is used for illustrating one or more preferred embodiments of the present invention and the principle and advantage explaining one or more embodiments of the present invention further.In the accompanying drawings:
Fig. 1 is the integrally-built sectional view of diagram scroll compressor;
Fig. 2 is the stereogram of the assembly structure of diagram a kind of dynamic scroll element, cross slip-ring and main bearing seat;
Fig. 3 is the schematic diagram of the force analysis of the dynamic scroll element of diagram;
Fig. 4 is the schematic diagram of the assembly structure of a kind of cross slip-ring of diagram and main bearing seat;
Fig. 5 is the stereogram illustrated according to the cross slip-ring of the embodiment of the present invention and the assembly structure of main bearing seat;
Fig. 6 is the sectional view illustrated according to the cross slip-ring of the embodiment of the present invention and the assembly structure of main bearing seat; And
Fig. 7 is the schematic diagram illustrated according to the cross slip-ring of the embodiment of the present invention and the assembly process of main bearing seat.
The element that it will be appreciated by those skilled in the art that in accompanying drawing be only used to simple and clear for the purpose of illustrate, and not necessarily to draw in proportion.Such as, in accompanying drawing, the size of some element may be exaggerated relative to other element, to contribute to improving the understanding to the embodiment of the present invention.
Embodiment
To be described one exemplary embodiment of the present invention by reference to the accompanying drawings hereinafter.For clarity and conciseness, all features of actual mode of execution are not described in the description.But, should understand, must make a lot specific to the decision of mode of execution in the process of any this practical embodiments of exploitation, to realize the objectives of developer, such as, meet those restrictive conditions relevant to system and business, and these restrictive conditions may change to some extent along with the difference of mode of execution.In addition, although will also be appreciated that development is likely very complicated and time-consuming, concerning the those skilled in the art having benefited from present disclosure, this development is only routine task.
At this, also it should be noted is that, in order to avoid fuzzy the present invention, illustrate only in the accompanying drawings to according to relevant some apparatus structures of the solution of the present invention and/or treatment step, and eliminate other details more of the present invention.
Below with reference to Fig. 1 for scroll compressor, first to the structure brief description in addition of rotary compressor.But, it should be appreciated by those skilled in the art that the scroll compressor that the invention is not restricted to shown in figure.One or more embodiments of the present invention can also be applied to the rotary compressor of the other types of the assembly structure with cross slip-ring and main bearing seat.
Fig. 1 is the integrally-built sectional view of diagram scroll compressor 10.
As shown in Figure 1, scroll compressor 10 comprises columnar seal casinghousing 12, scroll component 14, main bearing seat 16, driving mechanism 18, exhaust joint 20 and air input joint 22.Seal casinghousing 12 holds scroll component 14 and driving mechanism 18.Air input joint 22 arranges on housing 12, for sucking the gaseous refrigerant of low pressure.One end of housing 12 is fixedly connected with end cap 24.Exhaust joint 20 is arranged on end cap 24, for discharging the refrigeration agent after compression.Between housing 12 and end cap 24, being also provided with the acoustical panel 30 of the axial direction horizontal expansion (in FIG for extending along approximate horizontal direction) relative to housing 12, thus the inner space of compressor being separated into high pressure side and low voltage side.Space, formation high pressure side, space between end cap 24 and acoustical panel 30, and the space between acoustical panel 30 and housing 12 forms low voltage side space.Be positioned at pedestal 28 bottom housing 12 for compressor 10 is installed to system chassis.
The scroll component 14 held in housing 12 comprise be engaged with each other determine scroll element (determine compression member) 66 and dynamic scroll element (moving compression member) 64.The driving mechanism 18 held in housing 12 comprises stator 36, rotor 38 and live axle 40.Driving mechanism 18 coordinates to drive scroll component 14 with scroll component 14.Stator 36 is wound with winding.Stator 36 is fixedly connected with housing 12.Rotor 38 is arranged in stator 36, is connected to live axle 40, and can rotate in stator 36.The scroll component 14 driven by driving mechanism 18 provides axially support by main bearing seat 16.One end of live axle 40 is supported by main bearing seat 16 via sliding bearing, and the other end is then supported by step 58.Main bearing seat 16 is fixedly attached to housing 12.
The live axle 40 being connected to rotor 38 is rotated by rotor 38, to drive scroll component 14.Rotor 38 can be press-fitted on live axle 40.Live axle 40 is provided with counterweight 48.Live axle 40 can comprise concentric channels 60 in its lower end.Concentric channels 60 tilts with radially outward and the relative less eccentric channel 62 of diameter is communicated with, and eccentric channel 62 extends to the upper end of live axle 40.Lubricant oil can be filled in the inside of housing 12 bottom.Concentric channels 60 can provide pump action together with eccentric channel 62, lubricant oil is transported to the various piece of scroll compressor 10.
When driving mechanism 18 works, dynamic scroll element 64 is centered by the axis determining scroll element 66, and the turning radius of setting eccentric distance does translational motion.Supported by main bearing seat 16 and with determine the cross slip-ring 11 that scroll element 66 and dynamic scroll element 64 match constraint formed to dynamic scroll element 64, make scroll element 64 not carry out rotation.By the translational motion of dynamic scroll element 64, at the compression chamber determining to be formed between the crimping of scroll element 66 and dynamic scroll element 64 continuously to central mobile.Along with movement, the volume of compression chamber reduces continuously, thus realizes compression.
Dynamic scroll element 64 is seated on the thrust surface of the main bearing seat 16 in scroll compressor 10.Thrust surface is formed dynamic scroll element 64 and supports, and can ensure the stable operation of dynamic scroll element 64.
The structure of rotary compressor is schematically illustrated above for scroll compressor.Except the assembly structure of cross slip-ring and main bearing seat, the rotary compressor of one or more embodiments of the present invention is roughly the same with rotary compressor of the prior art, is not described in detail in this.
In order to the object of this specification is clearly described, be described below with reference to Fig. 2.Fig. 2 is the stereogram of the assembly structure of diagram a kind of dynamic scroll element 64, cross slip-ring 11 and main bearing seat 16.
As shown in Figure 2, main bearing seat 16 has thrust surface 1.This thrust surface 1 is annular.Dynamic scroll element 64 is seated on thrust surface 1.Cross slip-ring 11 is supported by main bearing seat 16, and with determine scroll element (not shown) and dynamic scroll element 64 matches.When the driving mechanism work of compressor, cross slip-ring 11 can move reciprocatingly along the direction of arrow shown in Fig. 2.
Fig. 3 is the schematic diagram of the force analysis of the dynamic scroll element 64 of diagram.As shown in Figure 3, dynamic scroll element 64 is subject to the downward axial load F1 in direction, comprehensive function by the thrust surface 1 of main bearing seat 16 from the driving force F4 of the substantially horizontal that thrust load F2, the directed force F3 determining the substantially horizontal that scroll element (not shown) applies to it and driving mechanism (not shown) upwards applies to it to the direction that it applies.Wherein, driving force F4 can generate the heeling moment as shown in the hollow arrow in Fig. 3, and this heeling moment makes dynamic scroll element 64 have the trend of inclination.
Owing to there is thrust surface 1, this thrust surface 1 applies direction thrust load F2 upwards to dynamic scroll element 64, so the slope trend of dynamic scroll element 64 is suppressed, thus dynamic scroll element 64 can stably run.
In the ordinary course of things, the area of thrust surface 1 is larger, more can form effective support to dynamic scroll element 64.This is because large thrust surfaces can reduce the pressure on surface, mean large thrust radius R t, thus the stable operation of dynamic scroll element 64 can be ensured better.
But the area of thrust surface can be subject to the restriction of the size of cross slip-ring usually, as shown in Figure 4.Fig. 4 is the schematic diagram of the assembly structure of a kind of cross slip-ring 11 of diagram and main bearing seat 16.When cross slip-ring 11 is placed on main bearing seat 16, between the inner perimeter of the ring portion of cross slip-ring 11 and the outer perimeter of the thrust surface 1 of main bearing seat 16, usually can there is gap 3, so that the assembling of cross slip-ring 11.In other words, thrust surface 1 can entirely be enclosed within the ring portion of cross slip-ring 11.So, the region that the inner perimeter that the region occupied by outer perimeter of thrust surface 1 in no case can exceed cross slip-ring 11 limits.In fact, consider the existence in gap 3, the region that the inner perimeter that the region occupied by the outer perimeter of thrust surface 1 can be less than cross slip-ring 11 usually limits.In other words, the axis projection of cross slip-ring 11 can surround the axis projection of the thrust surface 1 of main bearing seat 16, and does not have any coincidence.
In an embodiment according to the present invention, in order to expand the area of thrust surface 1, can expand the thrust radius R t of thrust surface 1, the axis projection of cross slip-ring 11 can be partially overlapped with the axis projection of the thrust surface 1 of main bearing seat 16.
Effect due to thrust surface 1 is to be formed dynamic scroll element 64 to support, and therefore the area of thrust surface 1 is also not necessarily subject to the restriction of the size of cross slip-ring 11.When not affecting the function of cross slip-ring 11, compared with the axis projection surrounding the thrust surface 1 of main bearing seat 16 with the axis projection of cross slip-ring 11, when the axis projection of the axis projection of cross slip-ring 11 and the thrust surface 1 of main bearing seat 16 partially overlaps, the area of thrust surface 1 is increased, thus dynamic scroll element 64 can more stably be run.
Fig. 5 is the stereogram illustrated according to the cross slip-ring 11 of the embodiment of the present invention and the assembly structure of main bearing seat 16.As shown in Figure 5, when cross slip-ring 11 is assemblied on main bearing seat 16, the outer perimeter of the thrust surface 1 ' on main bearing seat 16 is expanded in radial directions to some extent, and the axis projection of the thrust surface 1 ' of the axis projection of cross slip-ring 11 and main bearing seat 16 is partially overlapped.As can be seen from Figure 5, cross slip-ring 11 is enclosed within the thrust surface of main bearing seat 16 below 1 ', and its function can not be subject to the impact of the thrust surface 1 ' of enlarged areas.
According to a preferred embodiment of the invention, main bearing seat 16 can have groove in the below of thrust surface 1 ', to be assemblied in this groove by cross slip-ring 11, as shown in Figure 6.Fig. 6 is the sectional view illustrated according to the cross slip-ring 11 of the embodiment of the present invention and the assembly structure of main bearing seat 16.As can be seen from Figure 6, the scope of the outer perimeter of thrust surface 1 ' is significantly beyond the inner perimeter limited range of cross slip-ring 11.The object that main bearing seat 16 is formed groove 4 is in order to avoid causing interference between thrust surface 1 ' and cross slip-ring 11.The inner ring of cross slip-ring 11 can be long-round-shape.When cross slip-ring 11 carries out horizontal motion, the curved portion of the side of the inner ring of cross slip-ring 11 can match with groove 4.In the sectional view shown in Fig. 6, the sectional shape of groove 4 is arc.As long as it will be appreciated by persons skilled in the art that the ring portion can holding cross slip-ring 11, the sectional shape of groove 4 can be other shape any, and the present invention is to this not restriction.
Preferably, because the axis projection of the thrust surface 1 ' of the axis projection of cross slip-ring 11 and main bearing seat 16 partially overlaps, so the region that the inner perimeter that the region occupied by the outer perimeter of thrust surface 1 ' can be greater than cross slip-ring 11 limits.
When the axis projection of cross slip-ring surrounds the axis projection of the thrust surface of main bearing seat, cross slip-ring can be placed on main bearing seat easily, as shown in Figures 2 and 4.But, when the axis projection of the axis projection of cross slip-ring and the thrust surface of main bearing seat partially overlaps, cross slip-ring is assembled on main bearing seat and just likely becomes problem.
In a preferred embodiment of the invention, can cross slip-ring 11 be assembled to groove 4 from thrust surface 1 ' side, as shown in Figure 7.Fig. 7 is the schematic diagram illustrated according to the cross slip-ring 11 of the embodiment of the present invention and the assembly process of main bearing seat 16.Consider the size of the ring portion of cross slip-ring 11, shape and the position of groove 4 can be designed, be assembled to groove 4 from thrust surface 1 ' side to allow cross slip-ring 11.In assembly process, the ring portion of cross slip-ring 11 first can be made to tilt, be placed in groove 4 with the curved portion of the side of the inner ring by cross slip-ring 11.Then, the bottom being placed on curved portion in groove 4 and groove 4 of the side of the inner ring of cross slip-ring 11 is made to be adjacent to and to coincide, so that make another part of the inner ring of cross slip-ring 11 cross the outer perimeter of thrust surface 1 ' and be embedded in groove 4.After the inner ring of cross slip-ring 11 is all embedded in groove 4, the ring portion maintenance level (as illustrated in Figures 5 and 6) of cross slip-ring 11 can be made, so that cross slip-ring 11 normally plays a role.
Equally also cross slip-ring 11 can be disassembled from main bearing seat 16 easily.First, make the bottom of the curved portion of the side of the inner ring of cross slip-ring 11 and groove 4 be adjacent to and coincide, so that make another part of the inner ring of cross slip-ring 11 can exit from groove 4 and up over the outer perimeter of thrust surface 1 '.Then namely tiltably cross slip-ring 11 is taken out from groove 4.In other words, in the inventive solutions, the Assembly And Disassembly of cross slip-ring 11 and main bearing seat 16 is all very easily.
In sum, the thrust surface on main bearing seat can be formed dynamic scroll element and support, and can ensure dynamic scroll element stable operation.The axis projection of the axis projection of cross slip-ring of the present invention and the thrust surface of main bearing seat partially overlaps.Therefore, larger thrust surface can be obtained, more stably run to enable scroll element.
Although describe one or more embodiments of the present invention above by reference to the accompanying drawings in detail, it should be understood that mode of execution described above is just for illustration of the present invention, and be not construed as limiting the invention.For a person skilled in the art, can make various changes and modifications above-mentioned mode of execution and not deviate from the spirit and scope of the invention.Therefore, scope of the present invention is only limited by appended claim and equivalents thereof.
Claims (8)
1. a compressor, comprising:
Compressing mechanism, it comprises determines compression member and dynamic compression member;
Main bearing seat, it has thrust surface, and wherein, described dynamic compression member is seated on described thrust surface;
Cross slip-ring, it is supported by described main bearing seat, and determines compression member with described and described dynamic compression member matches,
It is characterized in that, the axis projection of the axis projection of described cross slip-ring and the thrust surface of described main bearing seat partially overlaps, and the region that the inner perimeter that the region occupied by the outer perimeter of described thrust surface is greater than the ring portion of described cross slip-ring limits.
2. compressor according to claim 1, wherein, described main bearing seat has groove below described thrust surface, and described cross slip-ring is assemblied in described groove.
3. compressor according to claim 2, wherein, the inner ring of described cross slip-ring is long-round-shape, and when described cross slip-ring carries out horizontal motion, curved portion and the described groove of the side of the inner ring of described cross slip-ring match.
4. compressor according to claim 2, wherein, the shape of described groove and position allow described cross slip-ring to be assembled to described groove from described thrust surface side.
5. compressor according to claim 4, wherein, described thrust surface is annular.
6. compressor according to claim 5, wherein, the sectional shape of described groove is arc.
7. according to the compressor in claim 1-6 described in any one, wherein, described compressor is rotary compressor.
8. compressor according to claim 7, wherein, described rotary compressor is scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110335051.6A CN103075341B (en) | 2011-10-26 | 2011-10-26 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110335051.6A CN103075341B (en) | 2011-10-26 | 2011-10-26 | Compressor |
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| Publication Number | Publication Date |
|---|---|
| CN103075341A CN103075341A (en) | 2013-05-01 |
| CN103075341B true CN103075341B (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110335051.6A Active CN103075341B (en) | 2011-10-26 | 2011-10-26 | Compressor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6098706B1 (en) * | 2015-12-28 | 2017-03-22 | ダイキン工業株式会社 | Scroll compressor |
| US20220316478A1 (en) * | 2019-04-25 | 2022-10-06 | Emerson Climate Technologies (Suzhou) Co., Ltd. | Main bearing seat for scroll compressor, and scroll compressor |
| CN209875464U (en) * | 2019-05-10 | 2019-12-31 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
| WO2022000887A1 (en) * | 2020-07-02 | 2022-01-06 | 艾默生环境优化技术(苏州)有限公司 | Compression mechanism and scroll compressor comprising compression mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061079A (en) * | 1990-10-01 | 1992-05-13 | 科普兰公司 | The Oldham's coupling of scroll compressor |
| US5403172A (en) * | 1993-11-03 | 1995-04-04 | Copeland Corporation | Scroll machine sound attenuation |
| CN1290589A (en) * | 1999-07-02 | 2001-04-11 | 科普兰公司 | Method for machining bearing box and equipment |
| CN201206549Y (en) * | 2007-09-11 | 2009-03-11 | 艾默生环境优化技术有限公司 | Scroll compressor |
| CN202273864U (en) * | 2011-10-26 | 2012-06-13 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8287257B2 (en) * | 2009-08-21 | 2012-10-16 | Thermo King Corporation | Oldham coupling |
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2011
- 2011-10-26 CN CN201110335051.6A patent/CN103075341B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061079A (en) * | 1990-10-01 | 1992-05-13 | 科普兰公司 | The Oldham's coupling of scroll compressor |
| US5403172A (en) * | 1993-11-03 | 1995-04-04 | Copeland Corporation | Scroll machine sound attenuation |
| CN1290589A (en) * | 1999-07-02 | 2001-04-11 | 科普兰公司 | Method for machining bearing box and equipment |
| CN201206549Y (en) * | 2007-09-11 | 2009-03-11 | 艾默生环境优化技术有限公司 | Scroll compressor |
| CN202273864U (en) * | 2011-10-26 | 2012-06-13 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
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| CN103075341A (en) | 2013-05-01 |
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