CN201779020U - Thrust structure of rotary compressor - Google Patents
Thrust structure of rotary compressor Download PDFInfo
- Publication number
- CN201779020U CN201779020U CN201020523950XU CN201020523950U CN201779020U CN 201779020 U CN201779020 U CN 201779020U CN 201020523950X U CN201020523950X U CN 201020523950XU CN 201020523950 U CN201020523950 U CN 201020523950U CN 201779020 U CN201779020 U CN 201779020U
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- Prior art keywords
- rotary compressor
- plane bearing
- bearing
- rotor
- rolling
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Abstract
A thrust structure of a rotary compressor comprises a compression component and a motor component which are arranged inside a casing, wherein the compression component comprises a cylinder, a piston, a crank shaft, a sliding piece, a main bearing and an auxiliary bearing, and the motor component comprises a stator and a rotor. The piston is installed in the cylinder, the crank shaft is used for driving the piston to rotate eccentrically, the sliding piece is positioned in a sliding piece groove in the cylinder, the main bearing and the auxiliary bearing are respectively mounted on two sides of the cylinder, and one end of the sliding piece is connected with the periphery of the piston. The stator is fixed on the inner wall of the casing, the rotor is fixed on the crank shaft, and a plane bearing used for thrusting is installed between the rotor and the main bearing. The plane bearing comprises a rolling component, or a rolling component and an upper supporting part, or a rolling component and a lower part, wherein the rolling component comprises a rolling member installed on a retainer. The thrust structure of a rotary compressor has the advantages of being simple in structure, flexible in operation, low in manufacturing cost, friction and abrasion, and wide in 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 thrust structure of common rotary compressor mainly contains following two kinds: first kind is to utilize the shaft shoulder of the bent axle of driven plunger rotation to realize thrust; Second kind is at the end installation thrust block of the bent axle of driven plunger rotation, utilizes thrust block to realize thrust.The way of contact of these two kinds of thrust structures all is sliding friction, and its wearing and tearing are all bigger.
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, fabricating cost is low, frictional force is little, wearing and tearing are low, applied widely rotary compressor, to overcome deficiency of the prior art.
Press the thrust structure of a kind of rotary compressor of this purpose design, comprise the compression assembly and the electric machine assembly that are arranged in the housing, compression assembly comprises cylinder, be arranged on the piston in the cylinder, driven plunger is made the bent axle of eccentric rotary, be arranged on the interior slide plate of vane slot of cylinder, be separately positioned on the main bearing and the supplementary bearing of cylinder both sides, one end of slide plate and the periphery of piston are joined, electric machine assembly comprises stator and rotor, stator is fixed on the inwall of housing, rotor is fixed on the bent axle, and its structure characteristic is to be provided with the plane bearing that is used for thrust between rotor and the main bearing; Plane bearing comprises rolling assembly, and perhaps, plane bearing comprises rolling assembly and upper supporting piece, and perhaps, plane bearing comprises rolling assembly and lower support element; Wherein, rolling assembly comprises the rolling element that is arranged in the retainer.
The internal diameter of the external diameter＜rotor of described plane bearing.
The external diameter of the internal diameter＞bent axle of described plane bearing.
Gap between the endoporus of the endoporus of described plane bearing and the periphery of the gap＜plane bearing between the bent axle and rotor.
The center of the rolling element of described plane bearing all is positioned on the upper-end surface of main bearing or lower support element when static or during motion state.
The center circle diameter of described rolling element is d2, and the interior circular diameter of rolling element is d3, and the interior circular diameter of retainer is d, wherein, and d3＞d, d2＞d.
The center circle diameter of described rolling element is d2, and the interior circular diameter of rolling element is d3, and the interior circular diameter of retainer is d, wherein, and d3＜d, d2＞d.
Described rolling element is ball or needle roller.
The technological scheme that the utility model provides can be applied to all vertical rotating compressors.When rotary compressor is worked, be enclosed within thrust structure on the bent axle cylindrical for the plane bearing pine, all apply on the rolling assembly from the power of rotor and bent axle.Owing to adopted rolling friction to substitute sliding friction, so can reduce the frictional force of rotatable parts and reduce its wear intensity, thereby improve efficiency and prolong working life of rotary compressor, it has simple and reasonable, flexible operation, fabricating cost is low, frictional force is little, wearing and tearing are low, advantage of wide range of application.
Description of drawings
Fig. 1 is the utility model one example structure schematic representation.
Fig. 2 is the sectional structure schematic representation of rotor.
Fig. 3 is the sectional structure schematic representation of main bearing.
Fig. 4 is the structural representation of bent axle.
Fig. 5 is the perspective view of rolling assembly.
Fig. 6 is the main TV structure schematic representation of rolling assembly.
Fig. 7 is the structural representation after rolling assembly and the upper supporting piece assembling.
Fig. 8 is the plan structure schematic representation of Fig. 7.
Fig. 9 is the structural representation after rolling assembly and the lower support element assembling.
Figure 10 is the plan structure schematic representation of Fig. 9.
Among the figure: 11 is cylinder, and 12 is piston, and 13 is bent axle, and 14 is supplementary bearing, and 15 is main bearing, 15.1 be the upper-end surface, 16 is rotor, 16.1 is the lower end surface, and 17 is stator, and 18 is housing, 19 is plane bearing, and 19.1 is rolling element, and 19.2 is retainer, and 19.3 is upper supporting piece, and 19.4 is lower support element.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Figure 10, the thrust structure of this rotary compressor, comprise the compression assembly and the electric machine assembly that are arranged in the housing 18, compression assembly comprises cylinder 11, be arranged on the piston 12 in the cylinder 11, driven plunger 12 is made the bent axle 13 of eccentric rotary, be arranged on the interior slide plate of vane slot of cylinder 11, be separately positioned on the main bearing 15 and the supplementary bearing 14 of cylinder 11 both sides, one end of slide plate and the periphery of piston 12 are joined, electric machine assembly comprises stator 17 and rotor 16, stator 17 is fixed on the inwall of housing 18, rotor 16 is fixed on the bent axle 13, is provided with the plane bearing 19 that is used for thrust between rotor 16 and the main bearing 15.
Plane bearing 19 both can only comprise rolling assembly, saw Fig. 5; Also can comprise rolling assembly and upper supporting piece 19.3, see Fig. 7-Fig. 8; Can also comprise rolling assembly and lower support element 19.4; Wherein, rolling assembly comprises the rolling element 19.1 that is arranged in the retainer 19.2, sees Fig. 9-Figure 10.Wherein, rolling element 19.1 is ball or needle roller.
The inner diameter d 1 of the outer diameter D＜rotor 16 of plane bearing 19.
The outer diameter D 1 of the inner diameter d＞bent axle 13 of plane bearing 19.
Gap between the periphery of the gap＜plane bearing 19 between the endoporus of plane bearing 19 and the bent axle 13 and the endoporus of rotor 16.
The center of the rolling element 19.1 of plane bearing 19 all is positioned on the upper-end surface 15.1 of main bearing 15 when static or during motion state.Perhaps, the center of the rolling element 19.1 of plane bearing 19 all is positioned on the upper-end surface of lower support element 19.4 when static or during motion state.
The center circle diameter of rolling element 19.1 is d2, and the interior circular diameter of rolling element 19.1 is d3, and the interior circular diameter of retainer 19.2 is d, wherein, and d3＞d, d2＞d.
The center circle diameter of rolling element 19.1 is d2, and the interior circular diameter of rolling element 19.1 is d3, and the interior circular diameter of retainer 19.2 is d, wherein, and d3＜d, d2＞d.
During assembling, 1) when plane bearing 19 only was made up of rolling assembly, the lower end surface 16.1 of rotor 16 adopted correct grinding or finish turning to handle, and the upper-end surface 15.1 of main bearing 15 adopts correct grinding or finish turning to handle; 2) when plane bearing 19 is made up of rolling assembly and upper supporting piece 16.3, the upper-end surface 15.1 of main bearing 15 adopts correct grinding or finish turning to handle; 3) when plane bearing 19 is made up of rolling assembly and lower support element 19.4, the lower end surface 16.1 of rotor 16 adopts correct grinding or finish turning to handle.
Claims (8)
1. the thrust structure of a rotary compressor, comprise the compression assembly and the electric machine assembly that are arranged in the housing (18), compression assembly comprises cylinder (11), be arranged on the piston (12) in the cylinder (11), driven plunger (12) is made the bent axle (13) of eccentric rotary, be arranged on the interior slide plate of vane slot of cylinder (11), be separately positioned on the main bearing (15) and the supplementary bearing (14) of cylinder (11) both sides, the periphery of one end of slide plate and piston (12) is joined, electric machine assembly comprises stator (17) and rotor (16), stator (17) is fixed on the inwall of housing (18), rotor (16) is fixed on the bent axle (13), it is characterized in that being provided with between rotor (16) and the main bearing (15) plane bearing (19) that is used for thrust; Plane bearing (19) comprises rolling assembly, and perhaps, plane bearing (19) comprises rolling assembly and upper supporting piece (19.3), and perhaps, plane bearing (19) comprises rolling assembly and lower support element (19.4); Wherein, rolling assembly comprises the rolling element (19.1) that is arranged in the retainer (19.2).
2. the thrust structure of rotary compressor according to claim 1 is characterized in that the internal diameter (d1) of external diameter (the D)＜rotor (16) of described plane bearing (19).
3. the thrust structure of rotary compressor according to claim 2 is characterized in that the external diameter (D1) of internal diameter (the d)＞bent axle (13) of described plane bearing (19).
4. the thrust structure of rotary compressor according to claim 3 is characterized in that the gap between the endoporus of the periphery of the endoporus of described plane bearing (19) and the gap＜plane bearing (19) between the bent axle (13) and rotor (16).
5. according to the thrust structure of the arbitrary described rotary compressor of claim 1 to 4, the center of rolling element (19.1) that it is characterized in that described plane bearing (19) all is positioned on the upper-end surface of main bearing (15) or lower support element (19.4) when static or during motion state.
6. the thrust structure of rotary compressor according to claim 5, the center circle diameter that it is characterized in that described rolling element (19.1) is d2, and the interior circular diameter of rolling element (19.1) is d3, and the interior circular diameter of retainer (19.2) is d, wherein, d3＞d, d2＞d.
7. the thrust structure of rotary compressor according to claim 5, the center circle diameter that it is characterized in that described rolling element (19.1) is d2, and the interior circular diameter of rolling element (19.1) is d3, and the interior circular diameter of retainer (19.2) is d, wherein, d3＜d, d2＞d.
8. the thrust structure of rotary compressor according to claim 5 is characterized in that described rolling element (19.1) is ball or needle roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020523950XU CN201779020U (en) | 2010-09-03 | 2010-09-03 | Thrust structure of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020523950XU CN201779020U (en) | 2010-09-03 | 2010-09-03 | Thrust structure of rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779020U true CN201779020U (en) | 2011-03-30 |
Family
ID=43792232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020523950XU Expired - Lifetime CN201779020U (en) | 2010-09-03 | 2010-09-03 | Thrust structure of rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286302A (en) * | 2016-09-13 | 2017-01-04 | 西安庆安制冷设备股份有限公司 | A kind of rotor-type compressor structure |
| WO2020082546A1 (en) * | 2018-10-23 | 2020-04-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft bearing of compressor and compressor |
-
2010
- 2010-09-03 CN CN201020523950XU patent/CN201779020U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286302A (en) * | 2016-09-13 | 2017-01-04 | 西安庆安制冷设备股份有限公司 | A kind of rotor-type compressor structure |
| WO2020082546A1 (en) * | 2018-10-23 | 2020-04-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft bearing of compressor and compressor |
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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 |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |