CN201874827U - Thrust structure of rotary compressor - Google Patents
Thrust structure of rotary compressor Download PDFInfo
- Publication number
- CN201874827U CN201874827U CN 201020620744 CN201020620744U CN201874827U CN 201874827 U CN201874827 U CN 201874827U CN 201020620744 CN201020620744 CN 201020620744 CN 201020620744 U CN201020620744 U CN 201020620744U CN 201874827 U CN201874827 U CN 201874827U
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- bearing
- rotary compressor
- ball
- thrust
- carriage
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Abstract
Disclosed is a thrust structure of a rotary compressor. A motor and a compression mechanism are disposed in a casing of the rotary compressor, the motor includes a stator and a rotor, the stator is fixed to the inner wall of the casing, the rotor is connected with a crankshaft in the compression mechanism, the compression mechanism includes a cylinder, a main bearing and an auxiliary bearing, the main bearing and the auxiliary bearing are disposed symmetrically on two sides of the cylinder and used for supporting the crankshaft, a planar ball bearing for axial thrust of the crankshaft is disposed at the end of an auxiliary shaft of the crankshaft, the planar ball bearing includes an upper washer, a ball, a ball retainer and a lower washer, the planar ball bearing is connected with a bracket for providing thrust supporting force, and the bracket is connected with a bearing portion of the auxiliary bearing. The thrust structure is applicable to crankshaft connecting rod reciprocating type rotary compressors, is also applicable to other types of rotary compressors, and has the advantages of simple and reasonable structure, flexibility in operation, convenience in mounting, accuracy in positioning, firmness in fixation, low manufacturing cost and wide application range.
Description
Technical field
The utility model relates to the thrust structure of a kind of rotary compressor, particularly a kind of rotary compressor.
Background technique
The bent axle of rotary compressor is in when work, bear the magnetic pull between stator and the rotor and the gravity of rotor and bent axle in the axial direction mostly, and how this power of thrust has different processing modes.
Common processing mode has following several: as Chinese patent literature CN2583396Y in disclosed a kind of bent axle piston type freezer compressor on October 21st, 2002, comprise housing, bent axle, crankcase, rotor, motor stator, connecting rod, piston, freezing wet goods, also be provided with a thrust ball bearing on the bent axle supporting surface of crankcase; And Chinese patent literature CN1865723A was on 06 06th, 2006 disclosed a kind of diameter-variable plane thrust ball bearing, comprise upper support sheet, retainer and lower support sheet, the mounting hole of lower support sheet and the mounting hole of retainer are located with the projection of compressor axle sleeve, the mounting hole of upper support sheet is located with compressor crank shaft, and the installation aperture of upper support sheet is different with the installation aperture size of lower support sheet.These two kinds of structures are used on the crankshaft-link rod reciprocal compressor that refrigerator uses more, the plane ball bearing is enclosed within outside the bent axle, thrust is come in supporting surface and bearing upper-end surface by bent axle, these two kinds of structures all can only be used to have the structure of downward bent axle supporting surface, and compressor with rolling rotor does not have this structure, uses quite difficulty.In addition, Chinese patent literature CN2871910Y discloses a kind of bearing device of refrigeration compressor motor rotor on December 29th, 2005, comprise block bearing, block bearing contacts with rotor by the plane rolling bearing, the plane rolling bearing has a ball retainer, ball retainer is provided with the plurality of balls hole, and ball places in the ball hole of ball retainer, and the both sides of ball retainer have Upper gasket and lower levelling plate respectively.The scheme of this bearing device with the plane rolling bearing housing outside bent axle, come thrust by the lower end surface of rotor and the upper-end surface of bearing, this scheme can be used for compressor with rolling rotor, install and technologic many problems but this scheme exists again, as ball retainer can't bear rotor hot jacket high temperature problem and the problem that the rotor lower end surface can't guarantee planeness.
The model utility content
The purpose of this utility model aims to provide the thrust structure of a kind of simple and reasonable, flexible operation, easy for installation, accurate positioning, fixed, rotary compressor that fabricating cost is low, applied widely, to overcome deficiency of the prior art.
Press the thrust structure of a kind of rotary compressor of this purpose design, be provided with motor and compressing mechanism in the housing of rotary compressor, motor comprises stator and rotor, stator is fixed on the inwall of housing, bent axle in rotor and the compressing mechanism joins, compressing mechanism also comprises cylinder, and be separately positioned on the both sides of cylinder and be used to support the main bearing and the supplementary bearing of bent axle, its structure characteristic is that the end of the countershaft of bent axle is provided with the plane ball bearing that is used for axial thrust of crankshaft, this plane ball bearing comprises Upper gasket, ball, ball retainer and lower levelling plate, the plane ball bearing with provide the carriage of thrust support force to join, the bearing portion of carriage and supplementary bearing joins.
On the outer wall of described carriage by the buckle hook that is provided with on it or the bearing portion that is articulated in supplementary bearing.The outer wall of bearing portion is provided with positioning groove or locating flange.
The top of described carriage is provided with opening, and this opening sleeve is located on the outer wall of bearing portion of supplementary bearing, also is provided with baffler on the supplementary bearing, and the bottom of carriage is crimped on the baffler.
Place, the center diameter of a circle of described ball is greater than the external diameter of the countershaft of bent axle.
Described carriage is provided with more than one elastic bumps, and lower levelling plate is crimped on the elastic bumps.Carriage is an elastic bracket.Carriage is by the sheet metal part drawing.
The utility model is provided with the plane ball bearing that is used for axial thrust of crankshaft by the end at the countershaft of bent axle, the plane ball bearing provides the thrust support force by carriage, thereby avoided the plane ball bearing to be enclosed within outside the bent axle, the hot jacket when installing between rotor and bearing is subjected to the bad problem of lower end surface planeness of heat problem and rotor; Simultaneously, at the end mounting plane ball bearing of the countershaft of bent axle, ball is immersed in the lubricant oil easily, high lubricating effect, reliability height; Whole erection technology is relatively simple and easy to operate, and fabricating cost is also cheaper.
In addition, because place, the center diameter of a circle of ball has been liberated the particle diameter of ball and the narrow limitation of place, ball center diameter of a circle designed size greater than the technical characteristics scheme of the external diameter of the countershaft of bent axle; It is bigger to make that ball can design, and ball bearing operation in whole plane is more steady, and consumption of compressor is lower.
When carriage by the outer wall of the buckle hook that is provided with on it or the bearing portion that is articulated in supplementary bearing on the time, the substantially horizontal of plane ball bearing and axial spacing bearing portion by supplementary bearing come spacing; When the top of carriage is provided with opening, when this opening sleeve is located on the outer wall of bearing portion of supplementary bearing, the spacing bearing portion by supplementary bearing of the substantially horizontal of plane ball bearing carries out, the spacing of the axial direction of plane ball bearing carried out by baffler, so can guarantee coaxial with bent axle, the spacing precision height of carriage and plane ball bearing to the heart.More than the installation of two kinds of technological schemes all fairly simple,
Carriage in the utility model can adopt metal plate punching to be shaped, and has reduced manufacture cost greatly.It not only goes in the reciprocating type rotary compressor of crankshaft-link rod, can also be applicable in the rotary compressor of other type, its have simple and reasonable, flexible operation, easy for installation, accurate positioning, fixed, fabricating cost is low, advantage of wide range of application.
Description of drawings
Fig. 1 is the utility model first embodiment's a broken section structural representation.
Fig. 2 is that the solid of plane ball bearing is decomposed the structure for amplifying schematic representation.
Fig. 3 is the A place structure for amplifying schematic representation among Fig. 1.
Fig. 4 is second embodiment's a broken section structural representation.
Fig. 5 is the B place structure for amplifying schematic representation among Fig. 4.
Among the figure: 1 is housing, and 2 is stator, and 3 is rotor, and 4 is bent axle, 4.1 be the main shaft of bent axle, 4.2 is the countershaft of bent axle, 5 cylinders, 6 main bearings, 7 supplementary bearings, the bearing portion of 7.1 supplementary bearings, 7.1.1 is a positioning groove, 8 is the plane ball bearing, and 8.1 is Upper gasket, and 8.2 is ball, 8.3 be ball retainer, 8.4 lower levelling plates, 9 carriages, 9.1 be buckle, 9.3 is elastic bumps, 10 is baffler.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
First embodiment
Referring to Fig. 1-Fig. 3, the thrust structure of this rotary compressor, in the housing 1 of rotary compressor, be provided with motor and compressing mechanism, motor comprises stator 2 and rotor 3, stator 2 is fixed on the inwall of housing 1, bent axle 4 in rotor 3 and the compressing mechanism joins, compressing mechanism also comprises cylinder 5, and be separately positioned on the both sides of cylinder 5 and be used to support the main bearing 6 and the supplementary bearing 7 of bent axle 4, the end of the countershaft 4.2 of bent axle 4 is provided with the plane ball bearing 8 that is used for bent axle 4 axial thrusts, this plane ball bearing 8 comprises Upper gasket 8.1, ball 8.2, ball retainer 8.3 and lower levelling plate 8.4, plane ball bearing 8 with provide the carriage 9 of thrust support force to join, carriage 9 joins with the bearing portion 7.1 of supplementary bearing 7.Place, the center diameter of a circle Φ D of ball 8.2 is greater than the external diameter Φ C of the countershaft 4.2 of bent axle 4.Carriage 9 is provided with more than one elastic bumps 9.3, and lower levelling plate 8.4 is crimped on the elastic bumps 9.3.Carriage 9 is an elastic bracket.Carriage 9 is by the sheet metal part drawing.
In the present embodiment, on the outer wall of carriage 9 by buckle 9.1 hooks that are provided with on it or the bearing portion 7.1 that is articulated in supplementary bearing 7.The outer wall of bearing portion 7.1 is provided with positioning groove 7.1.1 or locating flange.
Second embodiment
Referring to Fig. 4-Fig. 5, in the present embodiment, the top of carriage 9 is provided with opening, and this opening sleeve is located on the outer wall of bearing portion 7.1 of supplementary bearing 7, also is provided with baffler 10 on the supplementary bearing 7, and the bottom of carriage 9 is crimped on the baffler 10.
All the other are not stated part and see first embodiment, no longer repeat.
Claims (8)
1. the thrust structure of a rotary compressor, the housing of rotary compressor is provided with motor and compressing mechanism in (1), motor comprises stator (2) and rotor (3), stator (2) is fixed on the inwall of housing (1), bent axle (4) in rotor (3) and the compressing mechanism joins, compressing mechanism also comprises cylinder (5), and be separately positioned on the both sides of cylinder (5) and be used to support the main bearing (6) and the supplementary bearing (7) of bent axle (4), the end that it is characterized in that the countershaft (4.2) of bent axle (4) is provided with the plane ball bearing (8) that is used for bent axle (4) axial thrust, this plane ball bearing (8) comprises Upper gasket (8.1), ball (8.2), ball retainer (8.3) and lower levelling plate (8.4), plane ball bearing (8) with provide the carriage (9) of thrust support force to join, the bearing portion (7.1) of carriage (9) and supplementary bearing (7) joins.
2. the thrust structure of rotary compressor according to claim 1 is characterized in that on the outer wall of described carriage (9) by buckle (9.1) hook that is provided with on it or the bearing portion (7.1) that is articulated in supplementary bearing (7).
3. the thrust structure of rotary compressor according to claim 2 is characterized in that the outer wall of described bearing portion (7.1) is provided with positioning groove (7.1.1) or locating flange.
4. the thrust structure of rotary compressor according to claim 1, the top that it is characterized in that described carriage (9) is provided with opening, this opening sleeve is located on the outer wall of bearing portion (7.1) of supplementary bearing (7), also be provided with baffler (10) on the supplementary bearing (7), the bottom of carriage (9) is crimped on the baffler (10).
5. according to the thrust structure of claim 1,2 or 4 described rotary compressors, it is characterized in that the external diameter (Φ C) of place, the center diameter of a circle (Φ D) of described ball (8.2) greater than the countershaft (4.2) of bent axle (4).
6. the thrust structure of rotary compressor according to claim 5 is characterized in that described carriage (9) is provided with more than one elastic bumps (9.3), and lower levelling plate (8.4) is crimped on the elastic bumps (9.3).
7. the thrust structure of rotary compressor according to claim 6 is characterized in that described carriage (9) is an elastic bracket.
8. the thrust structure of rotary compressor according to claim 7 is characterized in that described carriage (9) is by the sheet metal part drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020620744 CN201874827U (en) | 2010-11-17 | 2010-11-17 | Thrust structure of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020620744 CN201874827U (en) | 2010-11-17 | 2010-11-17 | Thrust structure of rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874827U true CN201874827U (en) | 2011-06-22 |
Family
ID=44162745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020620744 Expired - Lifetime CN201874827U (en) | 2010-11-17 | 2010-11-17 | Thrust structure of rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874827U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536831A (en) * | 2012-03-13 | 2012-07-04 | 西安庆安制冷设备股份有限公司 | Air cylinder fixing mechanism of rotary compressor |
| CN103362816A (en) * | 2012-03-30 | 2013-10-23 | 三菱电机株式会社 | Rotary compressor |
| CN105626536A (en) * | 2014-10-31 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor pump body and compressor comprising same |
| CN106089718A (en) * | 2016-07-28 | 2016-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump and compressor |
| CN106168220A (en) * | 2016-08-19 | 2016-11-30 | 安徽美芝精密制造有限公司 | Compressor and refrigerating circulatory device |
| WO2020253796A1 (en) * | 2019-06-19 | 2020-12-24 | 艾默生环境优化技术(苏州)有限公司 | Shaft assembly, and compressor comprising shaft assembly |
-
2010
- 2010-11-17 CN CN 201020620744 patent/CN201874827U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536831A (en) * | 2012-03-13 | 2012-07-04 | 西安庆安制冷设备股份有限公司 | Air cylinder fixing mechanism of rotary compressor |
| CN103362816A (en) * | 2012-03-30 | 2013-10-23 | 三菱电机株式会社 | Rotary compressor |
| CN105626536A (en) * | 2014-10-31 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor pump body and compressor comprising same |
| CN106089718A (en) * | 2016-07-28 | 2016-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump and compressor |
| CN106168220A (en) * | 2016-08-19 | 2016-11-30 | 安徽美芝精密制造有限公司 | Compressor and refrigerating circulatory device |
| WO2020253796A1 (en) * | 2019-06-19 | 2020-12-24 | 艾默生环境优化技术(苏州)有限公司 | Shaft assembly, and compressor comprising shaft assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |