CN102364100A - Axial thrust bearing supporting structure for crankshaft of refrigeration compressor - Google Patents
Axial thrust bearing supporting structure for crankshaft of refrigeration compressor Download PDFInfo
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- CN102364100A CN102364100A CN2011103565575A CN201110356557A CN102364100A CN 102364100 A CN102364100 A CN 102364100A CN 2011103565575 A CN2011103565575 A CN 2011103565575A CN 201110356557 A CN201110356557 A CN 201110356557A CN 102364100 A CN102364100 A CN 102364100A
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- annular boss
- thrust bearing
- diameter
- central ring
- supporting structure
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Abstract
The invention relates to an axial thrust bearing supporting structure for a crankshaft of a refrigeration compressor. The axial thrust bearing supporting structure comprises a cylinder seat, the crankshaft, a piston and a connecting rod, wherein an annular slot is formed at the periphery of the end face of an upper orifice of a bearing hole in the cylinder seat; an axial ball thrust bearing is arranged in the annular slot; an annular boss or an interrupted annular boss is formed on the bottom surface of the annular slot; the annular boss or the interrupted annular boss is positioned on the inner side of a central ring of a rolling path of a lower thrust ring of the axial ball thrust bearing; the outer diameter of the upper end face of the annular boss or the interrupted annular boss is less than or equal to the diameter of the central ring of the rolling path of the lower thrust ring; or the annular boss or the interrupted annular boss is positioned on the outer side of the central ring of the rolling path of the lower thrust ring of the axial ball thrust bearing; and the inner diameter of the upper end face of the annular boss or the interrupted annular boss is greater than or equal to the diameter of the central ring of the rolling path of the lower thrust ring. By the axial thrust bearing supporting structure, single-edge contact of a motion pair caused by manufacturing and installation errors of parts can be adjusted, the running state of the motion pair can be improved, and friction power consumption of the compressor can be reduced, so an aim of increasing the energy efficiency ratio of the compressor can be fulfilled.
Description
Technical field
The present invention relates to a kind of axial thrust of crankshaft bearing support structure of electromechanical integration refrigeration compressor, relate in particular to the axial thrust of crankshaft bearing support structure of the Piston Refrigerant Compreessor that is used for refrigerator.
Background technique
Existing hermetically sealed compressor mostly adopts reciprocating piston type bent axle-linkage mechanism; It comprises the connecting rod of cylinder block, bent axle, piston, connection crankshaft and piston; Rotor directly is sleeved on and drives crankshaft rotating on the bent axle, and promotes piston reciprocates through connecting rod.Cylinder block is provided with the vertical bearing hole of installing bent axle; The last aperture end face periphery of bearing hole is provided with annular groove; Install axial ball thrust bearing in the annular groove; The crank boss phase configuration of thrust bearing and bent axle, the weight that makes bent axle and rotor is supported by thrust bearing through the crank boss of bent axle.
Existing axial thrust bearing supporting structure is: to place the annular groove bottom surface of thrust bearing whole be a planar annular to aperture end face periphery on the cylinder block bearing hole, and the lower end surface of the following thrust circle of thrust bearing contacts with whole annular groove bottom surface.This mode of structure, the following thrust circle of thrust bearing is completely fixed on the bottom surface of annular groove, can not swing up and down adjustment.When the manufacturing of each part causes monolateral contact the between the kinematic pair part with alignment error, be difficult to adjust the operating condition of improving kinematic pair, thereby can not reduce frictional force and the friction power loss of compressor between each kinematic pair better.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that exists to above-mentioned existing technology and a kind of manufacturing and the monolateral contact condition of the caused kinematic pair of alignment error that can adjust component is provided, improves the crankshaft of cooler compressor axial thrust bearing supporting structure of kinematic pair operating condition.
The present invention for the technological scheme that problem adopted of the above-mentioned proposition of solution is: the connecting rod that comprises cylinder block, bent axle, piston, connection crankshaft and piston; Cylinder block is provided with the vertical bearing hole of installing bent axle; The last aperture end face periphery of bearing hole is provided with annular groove; Install axial ball thrust bearing in the annular groove; The crank boss phase configuration of axial ball thrust bearing and bent axle; It is characterized in that described annular groove bottom surface is provided with annular boss or is interrupted annular boss, described annular boss or be interrupted the inboard that annular boss is positioned at thrust circle raceway central ring under the axial ball thrust bearing, and annular boss or the upper-end surface external diameter that is interrupted annular boss are less than or equal to thrust circle raceway central ring diameter down; Perhaps described annular boss or be interrupted the outside that annular boss is positioned at thrust circle raceway central ring under the axial ball thrust bearing, and annular boss or the upper-end surface internal diameter that is interrupted annular boss are more than or equal to thrust circle raceway central ring diameter down.
Press such scheme, the described upper-end surface external diameter that is positioned at inboard annular boss or is interrupted annular boss is less than following thrust circle raceway central ring diameter, and 2a is 0.2～2 millimeter less than amount.
Press such scheme, the described upper-end surface internal diameter that is positioned at the annular boss in the outside or is interrupted annular boss is greater than following thrust circle raceway central ring diameter, and 2a is 0.2～2 millimeter greater than amount.
Press such scheme, described annular boss is made up of the driving washer that is installed in the annular groove bottom surface.
Press such scheme, described driving washer in the form of a ring, its internal diameter is identical with the internal diameter of annular groove bottom surface, its external diameter is less than or equal to down thrust circle raceway central ring diameter.
Press such scheme, described driving washer in the form of a ring, its external diameter is identical with the external diameter of annular groove bottom surface, its internal diameter is more than or equal to following thrust circle raceway central ring diameter.
Beneficial effect of the present invention is: 1, the supporting surface of the axial ball thrust bearing of annular boss conduct is owing to exist certain overhanging portion; When the manufacturing that component occur and alignment error cause the monolateral contact condition of kinematic pair; Can carry out the static state adjustment through following thrust circle, thereby improve the kinematic pair assembly error thrust bearing; Adopt the driving washer structure, can reach and adjust effect better; 2, because the existence of annular overhanging portion; When there was side-play amount a radially in the downward active force of thrust bearing when especially supporting role power was with running; Effect through the ball axial force makes the following thrust circle of thrust bearing can do certain swinging up and down; The operating condition of kinematic pair can be further improved, thereby can reduce frictional force between each kinematic pair such as bent axle better, reduce the friction power loss of compressor, reaches the purpose of the Energy Efficiency Ratio that improves compressor.
Description of drawings
Fig. 1 is the positive sectional structure chart of one embodiment of the invention.
Fig. 2 is the local amplification assumption diagram of thrust bearing supporting structure among Fig. 1, also is A portion enlarged view.
Fig. 3 is the positive sectional structure chart of second embodiment of the invention.
Fig. 4 is the local amplification assumption diagram of thrust bearing supporting structure among Fig. 3, also is B portion enlarged view.
Fig. 5 is the local amplification assumption diagram of the thrust bearing supporting structure of third embodiment of the invention.
Fig. 6 is the local amplification assumption diagram of the thrust bearing supporting structure of four embodiment of the invention.
Embodiment
Further specify embodiments of the invention below in conjunction with accompanying drawing.
Embodiment 1 comprises the connecting rod 4 of cylinder block 1, bent axle 2, piston 3, connection crankshaft and piston like Fig. 1, shown in 2, and cylinder block is provided with the vertical bearing hole of installing bent axle; The last aperture end face 6 of bearing hole is provided with annular groove 11; Install axial ball thrust bearing in the annular groove, axially ball thrust bearing is made up of last thrust circle (moving-coil) 10, bearing ball 9 and following thrust circle (Jing Quan) 8, crank boss 15 phase configuration of last thrust circle and bent axle top; Described annular groove bottom surface is provided with annular boss 7; Annular boss and cylinder block link and are one to be fixed structure, and described annular boss is positioned at the outside of thrust circle raceway central ring under the axial ball thrust bearing; And the upper-end surface internal diameter Φ C of annular boss is greater than following thrust circle raceway central ring diameter of phi B; 2a is 2 millimeters greater than amount, and also promptly descend between thrust circle and the annular boss apart from the spacing of the nearest point of contact 12 of thrust circle raceway central ring down is a, makes side-play amount a radially of downward active force existence of supporting role power and thrust bearing.The bottom of bent axle directly and rotor link, the weight of bent axle and rotor is supported by axial ball thrust bearing through the crank boss of bent axle.This structure can be adjusted with the monolateral situation that contacts between the caused part of alignment error the manufacturing of the part of formation kinematic pair such as cylinder of compressor seat, bent axle, piston, connecting rod; Improve the kinematic pair operating condition, thereby can reduce the frictional force between each kinematic pair, the friction power loss of reduction compressor better.
Embodiment 2 is like Fig. 3, shown in 4; It and a last embodiment's main difference part is that described annular boss 7 is positioned at the inboard of thrust circle 8 raceway central rings under the axial ball thrust bearing; And the upper-end surface external diameter of annular boss is less than following thrust circle raceway central ring diameter; 2a is 1.2 millimeters less than amount; Also promptly descending between thrust circle and the annular boss apart from the spacing of the nearest point of contact 12 of thrust circle raceway central ring down is a, makes side-play amount a radially of downward active force existence of supporting role power and thrust bearing.Other structure is identical with a last embodiment.
Embodiment 3 is as shown in Figure 5; It and second embodiment's difference is that described annular boss is a bascule, is made up of the driving washer that is installed in the annular groove bottom surface, and described driving washer in the form of a ring; Be interior driving washer 13; Its internal diameter is identical with the internal diameter of annular groove bottom surface, and its external diameter is less than following thrust circle 8 raceway central ring diameters, and 2a is 1 millimeter less than amount.Other structure is identical with last second embodiment.
Claims (8)
1. crankshaft of cooler compressor axial thrust bearing supporting structure; The connecting rod that comprises cylinder block, bent axle, piston, connection crankshaft and piston; Cylinder block is provided with the vertical bearing hole of installing bent axle; The last aperture end face periphery of bearing hole is provided with annular groove; Install axial ball thrust bearing in the annular groove, axially the crank boss phase configuration of ball thrust bearing and bent axle top is characterized in that described annular groove bottom surface is provided with annular boss or is interrupted annular boss; Described annular boss or be interrupted the inboard that annular boss is positioned at thrust circle raceway central ring under the axial ball thrust bearing; And annular boss or the upper-end surface external diameter that is interrupted annular boss are less than or equal to thrust circle raceway central ring diameter down, perhaps described annular boss or be interrupted the outside that annular boss is positioned at thrust circle raceway central ring under the axial ball thrust bearing, and annular boss or the upper-end surface internal diameter that is interrupted annular boss are more than or equal to thrust circle raceway central ring diameter down.
2. by the described crankshaft of cooler compressor axial thrust bearing of claim 1 supporting structure; It is characterized in that the described upper-end surface external diameter that is positioned at inboard annular boss or is interrupted annular boss less than following thrust circle raceway central ring diameter, 2a is 0.2～2 millimeter less than amount.
3. by the described crankshaft of cooler compressor axial thrust bearing of claim 1 supporting structure; It is characterized in that the described upper-end surface internal diameter that is positioned at the annular boss in the outside or is interrupted annular boss greater than following thrust circle raceway central ring diameter, 2a is 0.2～2 millimeter greater than amount.
4. by the described crankshaft of cooler compressor axial thrust bearing of claim 1 supporting structure, it is characterized in that described annular boss is made up of the driving washer that is installed in the annular groove bottom surface.
5. by the described crankshaft of cooler compressor axial thrust bearing of claim 4 supporting structure, it is characterized in that described driving washer in the form of a ring, its internal diameter is identical with the internal diameter of annular groove bottom surface, and its external diameter is less than or equal to thrust circle raceway central ring diameter down.
6. by the described crankshaft of cooler compressor axial thrust bearing of claim 5 supporting structure, it is characterized in that described driving washer external diameter less than following thrust circle raceway central ring diameter, 2a is 0.2～2 millimeter less than amount.
7. by the described crankshaft of cooler compressor axial thrust bearing of claim 4 supporting structure, it is characterized in that described driving washer in the form of a ring, its external diameter is identical with the external diameter of annular groove bottom surface, and its internal diameter is more than or equal to following thrust circle raceway central ring diameter.
8. by the described crankshaft of cooler compressor axial thrust bearing of claim 7 supporting structure, it is characterized in that described driving washer internal diameter greater than following thrust circle raceway central ring diameter, 2a is 0.2～2 millimeter greater than amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356557.5A CN102364100B (en) | 2011-11-11 | 2011-11-11 | Axial thrust bearing supporting structure for crankshaft of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356557.5A CN102364100B (en) | 2011-11-11 | 2011-11-11 | Axial thrust bearing supporting structure for crankshaft of refrigeration compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102364100A true CN102364100A (en) | 2012-02-29 |
| CN102364100B CN102364100B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110356557.5A Active CN102364100B (en) | 2011-11-11 | 2011-11-11 | Axial thrust bearing supporting structure for crankshaft of refrigeration compressor |
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| CN (1) | CN102364100B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030106A (en) * | 2014-05-07 | 2016-10-12 | 松下知识产权经营株式会社 | Sealed compressor and refrigeration device |
| CN111287942A (en) * | 2018-12-10 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
| CN111379689A (en) * | 2018-12-28 | 2020-07-07 | 塔莱斯公司 | Stirling cycle cooler with unitary support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611788A (en) * | 2003-10-27 | 2005-05-04 | 三星光州电子株式会社 | Hermetic compressor |
| CN101589232A (en) * | 2007-10-25 | 2009-11-25 | 松下电器产业株式会社 | Wo2008104521 |
| JP2010112249A (en) * | 2008-11-06 | 2010-05-20 | Panasonic Corp | Hermetic compressor |
| CN101960142A (en) * | 2008-10-27 | 2011-01-26 | 松下电器产业株式会社 | Sealed compressor |
| CN202338463U (en) * | 2011-11-11 | 2012-07-18 | 黄石东贝电器股份有限公司 | Axial thrust bearing supporting structure of crank shaft of refrigeration compressor |
-
2011
- 2011-11-11 CN CN201110356557.5A patent/CN102364100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611788A (en) * | 2003-10-27 | 2005-05-04 | 三星光州电子株式会社 | Hermetic compressor |
| CN101589232A (en) * | 2007-10-25 | 2009-11-25 | 松下电器产业株式会社 | Wo2008104521 |
| CN101960142A (en) * | 2008-10-27 | 2011-01-26 | 松下电器产业株式会社 | Sealed compressor |
| JP2010112249A (en) * | 2008-11-06 | 2010-05-20 | Panasonic Corp | Hermetic compressor |
| CN202338463U (en) * | 2011-11-11 | 2012-07-18 | 黄石东贝电器股份有限公司 | Axial thrust bearing supporting structure of crank shaft of refrigeration compressor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106030106A (en) * | 2014-05-07 | 2016-10-12 | 松下知识产权经营株式会社 | Sealed compressor and refrigeration device |
| CN111287942A (en) * | 2018-12-10 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
| CN111287942B (en) * | 2018-12-10 | 2022-05-03 | 安徽美芝制冷设备有限公司 | Compressor |
| CN111379689A (en) * | 2018-12-28 | 2020-07-07 | 塔莱斯公司 | Stirling cycle cooler with unitary support |
| CN111379689B (en) * | 2018-12-28 | 2024-03-26 | 塔莱斯公司 | Stirling cycle cooler with a single support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102364100B (en) | 2015-01-07 |
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Effective date of registration: 20210621 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: 435006 No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |
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