CN101255864A - Mechanism for regulating elasticity lining of frequency-changing cyclone compressor - Google Patents
Mechanism for regulating elasticity lining of frequency-changing cyclone compressor Download PDFInfo
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- CN101255864A CN101255864A CNA2007100177779A CN200710017777A CN101255864A CN 101255864 A CN101255864 A CN 101255864A CN A2007100177779 A CNA2007100177779 A CN A2007100177779A CN 200710017777 A CN200710017777 A CN 200710017777A CN 101255864 A CN101255864 A CN 101255864A
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- crank pin
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- sliding bearing
- dynamic
- elasticity lining
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Abstract
The present invention provides an elastic bush adjusting mechanism of inverter scroll compressor to ensure radial sealing force of dynamic static vortex teeth when the inverter scroll compressor running in low frequency to enlarge the frequency range of inverter scroll compressor, decrease libration and noise of climb-down and reset after climb-down, improve stability of radial joggle of dynamic and static vortex teeth, reduce machining and assembling precision of main parts such as crank pin, dynamic and static vortex disk of inverter scroll compressor, prolong service life of dynamic and static vortex disk, sliding bearing of dynamic vortex disk. The elastic bush 4 is mounted on a crank pin 6 connected with the principal axis 5, a sliding bearing 2 is mounted on the elastic bush 4, a dynamic vortex disk 1 is mounted on the sliding bearing 2, an arc spring 3 is mounted between inner surface of sliding bearing 2 and side plane of crank pin 6, the convexity of arc is towards axes line O2 of the crank pin 6.
Description
Technical field
The present invention relates to fluid variable capacity machinery, specifically is to improve the mechanism that the arc scroll wrap radially meshes the adjusting of stability.
Background technique
At present, frequency-changing cyclone compressor sound scroll wrap radially mesh the eccentric bush that adopts in the controlling mechanism of stability be by be installed in eccentric bush on the cylindrical crank pin realize the sound scroll wrap radially meshing performance regulate.When the centrifugal inertia force of movable orbiting scroll increased, eccentric bush rotated, and is reflected in the motion on the vortex flank of tooth, then is that the sound scroll wrap is adjacent to; When contact points occurs because partial operation deviation or rebounding force that hydrops, solid particle etc. caused when increasing suddenly, eccentric bush is revolution again under the comprehensive function of various power, is reflected in motion on the vortex flank of tooth and then is dynamic vortex tooth and produce and make a concession.Its deficiency is:
(1) the radial seal power between the scroll compressor sound scroll wrap of employing eccentric bush controlling mechanism is to produce by centrifugal inertia force and the suffered gas force comprehensive function of movable orbiting scroll that movable orbiting scroll, movable orbiting scroll bearing and eccentric bush produce fully.When frequency-changing cyclone compressor moves under low frequency,, thereby leak bigger because reducing of centrifugal inertia force often can not guarantee the radial seal power between the sound scroll wrap.
(2) after crank pin, eccentric bush inner and outer surface and the wearing and tearing of sound scroll wrap, vibration aggravation, noise that the returning movement after the yielding campaign of movable orbiting scroll and the yielding causes increase, and engagement can further worsen.
(3) determined the frequency of utilization narrow range of eccentric bush controlling mechanism by above shortcoming, vibration and noise are big, and global reliability is poor, has limited the performance of frequency-changing cyclone compressor advantage.
Summary of the invention
The objective of the invention is: guarantee the radial seal power between sound scroll wrap when frequency-changing cyclone compressor moves under low frequency, thereby enlarge the frequency range that frequency-changing cyclone compressor uses; Slow down vibration and noise when making a concession and making a concession the back return, improve the stability that radially meshes between the sound scroll wrap; The processing and the assembly precision of major parts such as the crank pin of reduction frequency-changing cyclone compressor, sound whirlpool dish; Prolong the working life of parts such as sound whirlpool dish, movable orbiting scroll sliding bearing.
The present invention is the mechanism for regulating elasticity lining of frequency-changing cyclone compressor, elasticity lining 4 is installed on the crank pin 6, crank pin 6 connects with main shaft 5, sliding bearing 2 is installed on the elasticity lining 4, movable orbiting scroll 1 is installed on the sliding bearing 2, between the side plane of the internal surface of sliding bearing 2 and crank pin 6 a circular arc spring sheet 3 has been installed, the convex surface of its circular arc is towards the shaft axis O2 of crank pin 6.
Usefulness of the present invention is:
(1) the circular arc spring sheet applies an elastic force to movable orbiting scroll, and this power makes movable orbiting scroll away from the quiet whirlpool O1 of disk center, has guaranteed the radial seal power of compressor when low-frequency operation, has enlarged the frequency range that frequency-changing cyclone compressor uses.
(2) when the engagement place runs into big machining deviation or hydrops, solid particle, can realize that the buffering of movable orbiting scroll is made a concession, strengthen the reliability of engagement.
(3) can in time compensate because the matching loose that parts depreciation causes.
(4) can reduce the machining accuracy of major parts such as the crank pin of frequency-changing cyclone compressor and sound whirlpool dish, thereby reduce the manufacture cost of complete machine.
(5) raising of engagement reliability can prolong the working life of crank pin, sound whirlpool dish.
(6) simple in structure, be easy to realize practical application.
Description of drawings
Fig. 1 is a structural drawing of the present invention, and Fig. 2 is the plan view of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, elasticity lining 4 is installed on the crank pin 6, crank pin connects with main shaft 5, sliding bearing 2 is installed on the elasticity lining 4, movable orbiting scroll 1 is installed on the sliding bearing 2, between the side plane of the internal surface of sliding bearing 2 and crank pin 6 a circular arc spring sheet 3 has been installed, the convex surface of its circular arc is towards the shaft axis O2 of crank pin 6.As shown in Figure 2, the cross section of crank pin 6 be shaped as rectangle, the cross section of elasticity lining 4 endoporus is a rectangle.Circular arc spring sheet 3 mounting points on the line of the shaft axis O2 of the shaft axis O3 of movable orbiting scroll 1 and crank pin 6 near the side of the shaft axis O3 of movable orbiting scroll 1.The arc surface of circular arc spring sheet 3 is symmetrical in the line O2O3 of the shaft axis O2 of the shaft axis O3 of movable orbiting scroll 1 and crank pin 6.Circular arc spring sheet 3 equals the height of elasticity lining 4 on the shaft axis O2 of crank pin direction at the height on the shaft axis O2 of the crank pin direction.
As shown in Figure 2, the concave side of circular arc spring sheet 3 is close on the side plane of rectangle endoporus of elasticity lining 4, and the internal surface of the external cylindrical surface of elasticity lining 4 and sliding bearing 2 cooperates.When movable orbiting scroll and quiet whirlpool dish (indicating among the figure) assemble according to the certain phase angle that interlaces, make circular arc spring sheet 3 produce certain pre-power.When work, flat crank pin 6 is delivered to driving moment on the movable orbiting scroll 1 by elasticity lining 4 and sliding bearing 2, in order to realize the compression of gas.Movable orbiting scroll 1 suffered spring force, centrifugal inertia force, the acting in conjunction of radial gas power forms the radial seal power between the sound scroll wrap.Spring force has increased radial seal power, makes that when compressor moved under low frequency, the radial seal power of sound scroll wrap engagement place was guaranteed.When running into the engagement place bigger machining deviation or hydrops, solid particle are arranged, movable orbiting scroll 1 can be subjected to the rebounding force effect that increases suddenly that above-mentioned factor causes.Movable orbiting scroll 1 overcomes making a concerted effort of spring force, centrifugal inertia force, radial gas power under the effect of this rebounding force, realize radially making a concession; Movable orbiting scroll 1 is subjected to the buffer function of circular arc spring sheet 3 again during yielding, and vibration and noise are all less.The distortion of circular arc spring sheet 3 recovers in time to compensate the wearing and tearing of crank pin 6 in the running, circular arc spring sheet 3, elasticity lining 4, sliding bearing 2, sound scroll wrap.This mechanism makes the shaft axis O3 of movable orbiting scroll 1 can in time change with the change of engaging position and operating mode around the turning radius that the shaft axis O1 of quiet whirlpool dish makes the revolution translation, processing and the assembly precision of crank pin, movable orbiting scroll sliding bearing, the orbiting and fixed scroll have been reduced, promptly reduced the processing cost of complete machine, improve the stability of scroll wrap engagement, and prolonged the working life of sound whirlpool dish.
Claims (5)
1. the mechanism for regulating elasticity lining of frequency-changing cyclone compressor, elasticity lining (4) is installed on the crank pin (6), crank pin (6) connects with main shaft (5), sliding bearing (2) is installed on the elasticity lining (4), movable orbiting scroll (1) is installed on the sliding bearing (2), it is characterized in that between the side plane of the internal surface of sliding bearing (2) and crank pin (6) a circular arc spring sheet (3) being installed, the convex surface of its circular arc is towards the shaft axis (O2) of crank pin (6).
2. the mechanism for regulating elasticity lining of frequency-changing cyclone compressor according to claim 1, it is characterized in that crank pin (6) cross section be shaped as rectangle, the cross section of elasticity lining (4) endoporus is a rectangle.
3. the mechanism for regulating elasticity lining of frequency-changing cyclone compressor according to claim 1 is characterized in that circular arc spring sheet (3) mounting point side near the shaft axis (O3) of movable orbiting scroll (1) on the line of the shaft axis (O2) of the shaft axis (O3) of movable orbiting scroll (1) and crank pin (6).
4. the mechanism for regulating elasticity lining of frequency-changing cyclone compressor according to claim 1 is characterized in that the arc surface of circular arc spring sheet (3) is symmetrical in the shaft axis (O3) of movable orbiting scroll (1) and the line (O2O3) of the shaft axis (O2) of crank pin (6).
5. the mechanism for regulating elasticity lining of frequency-changing cyclone compressor according to claim 1 is characterized in that circular arc spring sheet (3) equals height on shaft axis (O2) direction of elasticity lining (4) in crank pin (6) at the height on shaft axis (O2) direction of crank pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100177779A CN101255864A (en) | 2007-04-23 | 2007-04-23 | Mechanism for regulating elasticity lining of frequency-changing cyclone compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100177779A CN101255864A (en) | 2007-04-23 | 2007-04-23 | Mechanism for regulating elasticity lining of frequency-changing cyclone compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101255864A true CN101255864A (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100177779A Pending CN101255864A (en) | 2007-04-23 | 2007-04-23 | Mechanism for regulating elasticity lining of frequency-changing cyclone compressor |
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| CN (1) | CN101255864A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782035A (en) * | 2012-04-30 | 2016-07-20 | 艾默生环境优化技术有限公司 | Scroll Compressor with Unloader Assembly |
| WO2018036381A1 (en) * | 2016-08-23 | 2018-03-01 | 艾默生环境优化技术(苏州)有限公司 | Movable scroll component, method for processing same, and scroll compressor |
| US10215175B2 (en) | 2015-08-04 | 2019-02-26 | Emerson Climate Technologies, Inc. | Compressor high-side axial seal and seal assembly retainer |
| US10830236B2 (en) | 2013-01-22 | 2020-11-10 | Emerson Climate Technologies, Inc. | Compressor including bearing and unloader assembly |
| US11002276B2 (en) | 2018-05-11 | 2021-05-11 | Emerson Climate Technologies, Inc. | Compressor having bushing |
| US11015598B2 (en) | 2018-04-11 | 2021-05-25 | Emerson Climate Technologies, Inc. | Compressor having bushing |
-
2007
- 2007-04-23 CN CNA2007100177779A patent/CN101255864A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782035A (en) * | 2012-04-30 | 2016-07-20 | 艾默生环境优化技术有限公司 | Scroll Compressor with Unloader Assembly |
| US10156236B2 (en) | 2012-04-30 | 2018-12-18 | Emerson Climate Technologies, Inc. | Scroll compressor with unloader assembly |
| CN105782035B (en) * | 2012-04-30 | 2019-03-29 | 艾默生环境优化技术有限公司 | Screw compressor with off-load device assembly |
| US10830236B2 (en) | 2013-01-22 | 2020-11-10 | Emerson Climate Technologies, Inc. | Compressor including bearing and unloader assembly |
| US10215175B2 (en) | 2015-08-04 | 2019-02-26 | Emerson Climate Technologies, Inc. | Compressor high-side axial seal and seal assembly retainer |
| WO2018036381A1 (en) * | 2016-08-23 | 2018-03-01 | 艾默生环境优化技术(苏州)有限公司 | Movable scroll component, method for processing same, and scroll compressor |
| US11015598B2 (en) | 2018-04-11 | 2021-05-25 | Emerson Climate Technologies, Inc. | Compressor having bushing |
| US11002276B2 (en) | 2018-05-11 | 2021-05-11 | Emerson Climate Technologies, Inc. | Compressor having bushing |
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Open date: 20080903 |