CN103591023B - A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery - Google Patents
A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery Download PDFInfo
- Publication number
- CN103591023B CN103591023B CN201310517873.5A CN201310517873A CN103591023B CN 103591023 B CN103591023 B CN 103591023B CN 201310517873 A CN201310517873 A CN 201310517873A CN 103591023 B CN103591023 B CN 103591023B
- Authority
- CN
- China
- Prior art keywords
- piston
- crankshaft
- axle sleeve
- eccentric
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery, comprise bent axle, bent axle is through cylinder, the part that bent axle is positioned at cylinder interior is crankshaft eccentric portion, eccentric mass axle sleeve is socketed in outside crankshaft eccentric portion, the inner arc surface of eccentric mass axle sleeve and the exterior arc surface in crankshaft eccentric portion fit tightly, and the cylindrical of eccentric mass axle sleeve and the inner circle of piston fit tightly; Accordingly, wobbler shaft cover arranges pin-and-hole, is inserted with position limit pin, in order to determine eccentric mass axle sleeve and crankshaft eccentric portion extreme angles in relative rotation; Under the acting in conjunction of inertial force and external force, relatively rotate between eccentric mass axle sleeve and crankshaft eccentric portion, the distance of piston centre and crankshaft center changes thereupon, the cylindrical of piston is fitted with the inwall of cylinder all the time, the error produced when compensate for pump housing manufacture, assembling, and then the refrigerant leakage decreased from high cylinder pressure chamber to low-pressure cavity, reduce energy consumption, improve power efficiency.
Description
Technical field
The present invention relates to fluid machinery, particularly the eccentric block type radial flexible compensating mechanism of a kind of rolling piston class fluid machinery of rolling piston class compressor, vacuum pump, gas fluid mixture pump and liquor pump.
Background technique
Rolling piston class fluid machinery refers to a kind of compressor, vacuum pump, gas fluid mixture pump or liquor pump for improving gas and fluid pressure, is widely used in the fields such as refrigerated air-conditioning system, vacuum, aviation and military project.Its structure, except general alleged rolling-piston-type, also comprises swing, swing piston type, hinge sliding vane and waves sliding vane.
Rolling piston compressor (also claiming compressor with rolling rotor or rotary compressor) or pump structure feature are that cylinder inner wall is rounded, keep in touch with the cylindrical of piston.Piston sleeve is in crankshaft eccentric portion, and bent axle is then arranged in the bearing that is connected with cylinder end face.Cylinder has a groove, inside has can reciprocating slide plate.Slide plate one end is by spring supporting, and the other end withstands on outside piston, and cylinder is divided into low-pressure cavity and hyperbaric chamber by jointly.Along with the rotation of bent axle, the gas in hyperbaric chamber is gradually compressed, and discharges eventually through outlet valve.
The structure characteristic of oscillating compressor or pump (also claiming slide-valve vacuum pump) is that above-mentioned slide plate and piston are made of one, vane slot on cylinder changes cylindrical hole into, two panels is installed in it and waves lining, rocking piston type compressor or pump structure feature drive a curve bath at outside piston, its radius circular arc that is basic and slide plate head is suitable, under the restriction of slide plate, piston swings along with the rotation of bent axle.
Hinge sliding-vane compressor or pump structure feature drive a curve bath at outside piston, and its cross section is in the major arc being greater than 180 °.One end of slide plate and piston contact changes into cylindrical, embeds in curve bath, is similar to chain connection.The other end of slide plate no longer includes spring supporting,
Wave sliding-vane compressor or pump structure feature is arranged on cylinder by being hinged of hinge sliding-vane compressor, on piston, open a chute simultaneously, enable slide plate at middle slip.
Project organization due to above-mentioned rolling piston class fluid machinery makes the radial clearance between piston and cylinder often very large, causes the working medium of hyperbaric chamber to be leaked to low-pressure cavity, reduces the efficiency of operation, cause the loss of energy.Having under lubrication oil condition, lubricant oil can play certain seal action, reduces and leaks; And without in oily situation, the loss that radial clearance causes is more serious.In addition, when the slow-speed of revolution of frequency conversion machinery runs, radial clearance also can cause larger leakage.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the object of the present invention is to provide a kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery, compensate for the radial clearance between piston and cylinder, reduce the leakage that this kind of machine internal radial clearance causes, reduce energy consumption, improve power efficiency.
In order to achieve the above object, technological scheme of the present invention is:
A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery, comprise bent axle 1, cylinder 2, eccentric mass axle sleeve 3, piston 4 and locating stud 5, bent axle 1 is through cylinder 2, and the part that bent axle 1 is positioned at cylinder 2 is crankshaft eccentric portion 1A, and eccentric mass axle sleeve 3 is socketed in outside crankshaft eccentric portion 1A, the inner arc surface 3a of eccentric mass the axle sleeve 3 and exterior arc surface 1a of crankshaft eccentric portion 1A fits tightly, and the cylindrical 3b of eccentric mass the axle sleeve 3 and inner circle 4a of piston 4 fits.
If crank rotation direction is forward, bent axle 1 axle center O
1, 1A axle center, crankshaft eccentric portion O
2with piston 4 center O
3the triangle O formed
1o
2o
3be in O
1o
3the rear side of line, as shown in Figure 2.
Crankshaft eccentric portion 1A exterior arc surface 1a arranges the plane 1b with bent axle 1 axis being parallel, eccentric mass axle sleeve 3 arranges pin-and-hole 3A, be inserted with position limit pin 5, crankshaft eccentric portion cylindrical 1a arranges the plane 1b parallel with crankshaft center line, when plane 1b contacts with position limit pin 5, no longer include between crankshaft eccentric portion 1A and eccentric mass sliding sleeve 3 and relatively rotate, if crank rotation is forward, the position of limit pin hole 3A is in bent axle 1 axle center O
1piston 4 center O
3the rear side of line, as shown in Figure 2.
The present invention, under the acting in conjunction of inertial force and external force, relatively rotates between eccentric mass axle sleeve 3 and crankshaft eccentric portion 1A, piston 4 center O
3with bent axle 1 center O
1distance e(throw of eccentric) change thereupon, the cylindrical 4b of piston 4 is fitted with the inwall 2a of cylinder 2, and the error produced when compensate for pump housing manufacture, assembling, and then decreases working medium from cylinder 2 hyperbaric chamber to the leakage of low-pressure cavity.
The present invention can make rolling piston class fluid machinery operationally, and outside piston can keep fitting with cylinder wall, and this just greatly reduces radial clearance, reduces the leakage loss of high cylinder pressure chamber to low-pressure cavity, finally reduces energy consumption, raise the efficiency.
Accompanying drawing explanation
Fig. 1 is the part broken away view of radial compliance collocation structure, wherein: 1 is bent axle, and 1A is crankshaft eccentric portion, 1a is crankshaft eccentric portion cylindrical, 1b is the plane that restriction is rotated, and 3 is eccentric mass axle sleeve, and 3A is limit pin hole, 3a is eccentric mass axle sleeve inner circle, 3b is eccentric mass sleeve outer circle, and 4 is piston, and 4a is piston inner circle, 4b is outside piston, and 5 is position limit pin.
Fig. 2 is radial compliance collocation structure.Wherein: 1a is crankshaft eccentric portion cylindrical, and 2a is cylinder inner circle, 3a is eccentric mass axle sleeve inner circle, and 3b is eccentric mass sleeve outer circle, and 4a is piston inner circle, and 4b is outside piston, and 5 is position limit pin, and 9 is slide plate.
Fig. 3 is the structural representation of rolling piston class fluid machinery, is compliance mechanism in dotted line.Wherein: 1 is bent axle, 2 is cylinder, and 6 is machine case, and 7A is motor stator, and 7B is rotor, and 8A is upper bearing (metal) is also cylinder upper cover simultaneously, and 8B is lower bearing is also lower cover of air cylinder simultaneously.
Fig. 4 is the partial enlarged drawing of Fig. 3.Wherein: 1A is crankshaft eccentric portion, 2 is cylinder, and 3 is eccentric mass axle sleeve, and 4 is piston, and 8A is upper bearing (metal) is also cylinder upper cover simultaneously, and 8B is lower bearing is also lower cover of air cylinder simultaneously.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
With reference to Fig. 1, Fig. 2, a kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery, comprise bent axle 1, cylinder 2, eccentric mass axle sleeve 3, piston 4 and locating stud 5, bent axle 1 is through cylinder 2, the part being positioned at cylinder 2 inside is crankshaft eccentric portion 1A, eccentric mass axle sleeve 3 is socketed in outside crankshaft eccentric portion 1A, and the inner arc surface 3a of eccentric mass the axle sleeve 3 and exterior arc surface 1a of crankshaft eccentric portion 1A fits tightly, can relative sliding transmission of pressure; The cylindrical 3b of eccentric mass the axle sleeve 3 and inner circle 4a of piston 4 fits tightly.
In order to make outside piston 4b can fit all the time cylinder inner wall 2a, if crank rotation direction is forward, bent axle 1 axle center O
1, 1A axle center, crankshaft eccentric portion O
2with piston 4 center O
3the triangle O formed
1o
2o
3o should be in
1o
3the rear side of line, as shown in Figure 2.Can ensure when external force and inertial force acting in conjunction are in piston 4 and eccentric mass axle sleeve 3 like this, ∠ O
1o
2o
3can open, piston 4 center O
3with bent axle 1 center O
1distance e(throw of eccentric) increase thereupon, the cylindrical 4b of the piston 4 and inwall 2a of cylinder 2 is fitted, decreases the leakage that radial clearance is brought.
Under some angle, the e that can make with joint efforts of external force and inertial force diminishes, and leaks and increases.In order to avoid when external force and inertial force make a concerted effort be not enough to ensure ∠ O
1o
2o
3when opening, need to limit relatively rotating of crankshaft eccentric portion 1A and eccentric mass axle sleeve 3, avoid ∠ O
1o
2o
3reduce even oppositely change to cause greatly leaking increase, crankshaft eccentric portion 1A exterior arc surface 1a arranges the plane 1b with bent axle 1 axis being parallel, eccentric mass axle sleeve 3 arranges pin-and-hole 3A, is inserted with position limit pin 5; Correspondingly, crankshaft eccentric portion cylindrical 1a arranges the plane 1b parallel with crankshaft center line.When plane 1b contacts with position limit pin 5, no longer include between crankshaft eccentric portion 1A and eccentric mass sliding sleeve 3 and relatively rotate, thus the size of 1b determines extreme angles in relative rotation.In addition, in order to reduce the stress between position limit pin 5 and plane 1b, if crank rotation is forward, the position of limit pin hole 3A should be in O
1o
3the rear side of line, as shown in Figure 2.
Working principle of the present invention is: with reference to Fig. 3, Fig. 4, and the present invention and rolling piston class fluid machinery, with the use of, described rolling piston class fluid machinery, comprise and are arranged on motor 7 in housing 6 and compression assembly.
Motor comprises the stator 7A be fixed on housing and the rotor 7B being socketed in crankshaft end.Dynamic crankshaft 1 is with to rotate by rotor 7B during compressor operating;
Compression assembly comprises main bearing 8A and supplementary bearing 8B, cylinder 2, bent axle 1, eccentric mass axle sleeve 3, piston 4, slide plate 9.Main bearing 8A and supplementary bearing 8B is arranged on the both sides up and down of cylinder 2, in order to support bent axle 1, carries out axial seal to cylinder 2 simultaneously; Slide plate 9 is against all the time on outside piston 4b under the effect of external force, and cylinder 2 inside is divided into hyperbaric chamber and low-pressure cavity.When bent axle 1 rotates, the crankshaft eccentric portion 1A being positioned at cylinder 2 inside drives eccentric mass axle sleeve 3 to rotate, and then drives piston 4 to roll, and along with the position of piston 4 constantly changes, the gas in cylinder 2 hyperbaric chamber is gradually compressed, and is finally discharged by outlet valve; When bent axle 1 rotates, also relatively rotate between eccentric mass axle sleeve 3 and crankshaft eccentric portion 1A, piston 4 center O
3with bent axle 1 center O
1distance e(throw of eccentric) change thereupon, outside piston 4b is fitted with cylinder inner wall 2a, and the error produced when compensate for pump housing manufacture, assembling, and then decreases the refrigerant leakage from cylinder 2 hyperbaric chamber to low-pressure cavity.
Claims (1)
1. the eccentric block type radial flexible compensating mechanism of a rolling piston class fluid machinery, it is characterized in that, comprise bent axle (1), cylinder (2), eccentric mass axle sleeve (3), piston (4) and position limit pin (5); Bent axle (1) is through cylinder (2), the part being positioned at cylinder (2) inner is crankshaft eccentric portion (1A), eccentric mass axle sleeve (3) is socketed in outside, crankshaft eccentric portion (1A), the inner arc surface (3a) of eccentric mass axle sleeve (3) and the exterior arc surface (1a) in crankshaft eccentric portion (1A) fit tightly, and the cylindrical (3b) of eccentric mass axle sleeve (3) and the inner circle (4a) of piston (4) fit tightly;
If crank rotation direction is forward, the axle center O of bent axle (1)
1, crankshaft eccentric portion (1A) axle center O
2with the center O of piston 4
3the triangle O formed
1o
2o
3be in O
1o
3the rear side of line;
Eccentric mass axle sleeve (3) arranges pin-and-hole (3A), inserts position limit pin (5); Correspondingly, exterior arc surface (1a) in crankshaft eccentric portion is upper arranges the plane (1b) parallel with crankshaft center line, when plane (1b) contacts with position limit pin (5), no longer include between crankshaft eccentric portion (1A) and eccentric mass axle sleeve (3) and relatively rotate, if crank rotation is forward, the position of limit pin hole (3A) is in O
1o
3the rear side of line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517873.5A CN103591023B (en) | 2013-08-02 | 2013-10-25 | A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335844.7 | 2013-08-02 | ||
| CN201310335844 | 2013-08-02 | ||
| CN2013103358447 | 2013-08-02 | ||
| CN201310517873.5A CN103591023B (en) | 2013-08-02 | 2013-10-25 | A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103591023A CN103591023A (en) | 2014-02-19 |
| CN103591023B true CN103591023B (en) | 2016-04-13 |
Family
ID=50081297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517873.5A Active CN103591023B (en) | 2013-08-02 | 2013-10-25 | A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591023B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065854B (en) * | 2016-07-28 | 2017-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | One kind turns cylinder piston compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1576598A (en) * | 2003-07-02 | 2005-02-09 | 三星电子株式会社 | Variable capacity rotary compressor |
| CN102444582A (en) * | 2010-09-30 | 2012-05-09 | 广东美芝制冷设备有限公司 | Rotary type compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2509536A1 (en) * | 1975-03-05 | 1976-09-16 | Bosch Gmbh Robert | Compressor of eccentric rotor type - has flat internal surface on rotor fitting on flat face on shaft |
| JPH09170572A (en) * | 1995-12-18 | 1997-06-30 | Mitsubishi Heavy Ind Ltd | Scroll type fluid machine |
-
2013
- 2013-10-25 CN CN201310517873.5A patent/CN103591023B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1576598A (en) * | 2003-07-02 | 2005-02-09 | 三星电子株式会社 | Variable capacity rotary compressor |
| CN102444582A (en) * | 2010-09-30 | 2012-05-09 | 广东美芝制冷设备有限公司 | Rotary type compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103591023A (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3874013B2 (en) | Rotary compressor | |
| KR101300261B1 (en) | Scroll compressor | |
| JP2005299653A (en) | Rolling piston and rotary compressor gas leakage preventing device equipped therewith | |
| JP2011511198A (en) | Rotary compressor | |
| CN103591022B (en) | A kind of Slipper-type radial flexible compensation mechanism of rolling piston-like fluid machine | |
| JP5040934B2 (en) | Hermetic compressor | |
| KR101335427B1 (en) | Scroll compressor | |
| JP2012154235A (en) | Rotary compressor | |
| CN101387296A (en) | Static vane compressor | |
| CN103591023B (en) | A kind of eccentric block type radial flexible compensating mechanism of rolling piston class fluid machinery | |
| JP2005307764A (en) | Rotary compressor | |
| JP6019669B2 (en) | Rotary compressor | |
| JP4978461B2 (en) | Rotary compressor | |
| JP4858047B2 (en) | Compressor | |
| JP5915175B2 (en) | Rotary compressor | |
| CN204126893U (en) | Air condition compressor | |
| KR100286714B1 (en) | The Rotary Compressor with the System of Suction through Bearing | |
| JP6071787B2 (en) | Rotary compressor | |
| JP2010265830A (en) | Hermetic type compressor and refrigeration cycle equipment | |
| JP2006170213A5 (en) | ||
| JP2006170213A (en) | Rotary type fluid machine | |
| KR100531283B1 (en) | Rotary compressor | |
| KR20120081488A (en) | Scroll compressor with split type orbitting scroll | |
| KR101964800B1 (en) | Scroll type compressor | |
| KR100531284B1 (en) | Rotary compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |