CN201779021U - Thrust device of rotary type compressor - Google Patents
Thrust device of rotary type compressor Download PDFInfo
- Publication number
- CN201779021U CN201779021U CN2010205239660U CN201020523966U CN201779021U CN 201779021 U CN201779021 U CN 201779021U CN 2010205239660 U CN2010205239660 U CN 2010205239660U CN 201020523966 U CN201020523966 U CN 201020523966U CN 201779021 U CN201779021 U CN 201779021U
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- Prior art keywords
- bent axle
- upper supporting
- rotor
- lower support
- support element
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model relates to a thrust device of a rotary type compressor, which comprises a compression component and a motor component which are arranged in a casing, wherein the compression component comprises an air cylinder, a piston arranged in the air cylinder, a crankshaft driving the piston to carry out eccentric rotation, a main bearing and an auxiliary bearing, and the main bearing and the auxiliary bearing are respectively arranged at both sides of the air cylinder. The motor component comprises a stator and a rotor, wherein the stator is fixed on the inner wall of the casing, the rotor is fixed on the crankshaft, a plane bearing for thrust is arranged between the rotor and the main bearing and comprises an upper supporting component, a lower supporting component and a rolling component positioned between the upper supporting component and the lower supporting component, the upper supporting component, the lower supporting component and the rolling component of the plane bearing are all sleeved on the outer circle of the crankshaft loosely, a maximum clearance between the upper supporting component and the crankshaft is L1, the set outer diameter of the crankshaft is a, and the relationship of the L1 and the a meets 0.2mm<L1<a/5. The utility model has the characteristics of simple and reasonable structure, low manufacturing cost, small frictional force, low abrasion and extensive application range and is flexible in operation.
Description
Technical field
The utility model relates to the thrust device 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 that driven plunger rotates to contact with bearing to realize thrust; Second kind is at the close eccentric shaft one 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 device 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 device 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 separately positioned on the main bearing and the supplementary bearing of cylinder both sides, electric machine assembly comprises stator and rotor, stator is fixed on the inwall of housing, rotor is fixed on the bent axle, be provided with the plane bearing that is used for thrust between rotor and the main bearing, plane bearing comprises upper supporting piece, lower support element and the rolling assembly between upper supporting piece and lower support element, the upper supporting piece of plane bearing, the equal pine of lower support element and rolling assembly is enclosed within on the cylindrical of bent axle, its structure characteristic is that the maximal clearance between upper supporting piece and the bent axle is L1, the external diameter of setting bent axle is a, and its relation satisfies 0.2mm＜L1＜a/5.
Maximal clearance between described rolling assembly and the bent axle is L2, maximal clearance between lower support element and the bent axle is L3, and the gap between the cast aluminium of rolling assembly and rotor is L5, and the gap between the cast aluminium of lower support element and rotor is L4, its relation satisfies L3＜L4, L2＜L5.
Described L1＜L2≤L3.
The external diameter of the internal diameter＞bent axle of described lower support element, simultaneously, the institute of rolling assembly and lower support element has point of contact and is positioned on the lower support element all the time.
The external diameter of the internal diameter＞bent axle of described upper supporting piece, simultaneously, the institute of rolling assembly and upper supporting piece has point of contact and is positioned on the upper supporting piece all the time.
The external diameter of the internal diameter＞bent axle of described rolling assembly, the internal diameter of the cast aluminium of the external diameter＜rotor of rolling assembly.
Described rolling assembly comprises the rolling element that is arranged in the retainer.
The external diameter of the internal diameter＞bent axle of the lower support element in the utility model, simultaneously, the institute of rolling assembly and lower support element has point of contact and is positioned at all the time on the lower support element; That is, have point of contact and can not break away from lower support element.The external diameter of the internal diameter＞bent axle of upper supporting piece, simultaneously, the institute of rolling assembly and upper supporting piece has point of contact and is positioned at all the time on the upper supporting piece; That is, have point of contact and can not break away from upper supporting piece.The external diameter of the internal diameter＞bent axle of rolling assembly, the internal diameter of the cast aluminium of the external diameter＜rotor of rolling assembly; Be that rolling assembly has the automatic centering effect.
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, gap by restriction each component of plane bearing and bent axle and rotor, avoid contact each other, with the reliability that guarantees to connect and rotate, thereby improve the 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 decomposition texture schematic representation of rolling assembly.
Fig. 3 is the gap schematic representation of plane bearing and bent axle.
Fig. 4 is the size relationship schematic representation of plane bearing and bent axle and rotor.
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, and 16 is rotor, and 17 is stator, and 18 is housing, and 19 is plane bearing, and 19.1 is upper supporting piece, and 19.2 is rolling element, and 19.3 is retainer, 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-Fig. 4, the thrust device 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 separately positioned on the main bearing 15 and the supplementary bearing 14 of cylinder 11 both sides, 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, be provided with the plane bearing 19 that is used for thrust between rotor 16 and the main bearing 15, plane bearing 19 comprises upper supporting piece 19.1, lower support element 19.4 and the rolling assembly between upper supporting piece 19.1 and lower support element 19.4, the upper supporting piece 19.1 of plane bearing 19, the equal pine of lower support element 19.4 and rolling assembly is enclosed within on the cylindrical of bent axle 13, maximal clearance between upper supporting piece 19.1 and the bent axle 13 is L1, the external diameter of setting bent axle 13 is a, and its relation satisfies 0.2mm＜L1＜a/5.Rolling assembly comprises the rolling element 19.2 that is arranged in the retainer 19.3.
Maximal clearance between rolling assembly and the bent axle 13 is L2, maximal clearance between lower support element 19.4 and the bent axle 13 is L3, and the gap between the cast aluminium of rolling assembly and rotor 16 is L5, and the gap between the cast aluminium of lower support element 19.4 and rotor 16 is L4, its relation satisfies L3＜L4, L2＜L5.And L1＜L2≤L3 is arranged.
The external diameter a of the internal diameter b＞bent axle 13 of lower support element 19.4, simultaneously, the institute of rolling assembly and lower support element 19.4 has point of contact and is positioned at all the time on the lower support element 19.4.
The external diameter a of the inner diameter d＞bent axle 13 of upper supporting piece 19.1, simultaneously, the institute of rolling assembly and upper supporting piece 19.1 has point of contact and is positioned at all the time on the upper supporting piece 19.1.
Since the external diameter a of the internal diameter c＞bent axle 13 of rolling assembly, the internal diameter f of the cast aluminium of the external diameter e＜rotor 16 of rolling assembly, and therefore, rolling assembly has the automatic centering effect.
Claims (7)
1. the thrust device 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 separately positioned on the main bearing (15) and the supplementary bearing (14) of cylinder (11) both sides, 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), be provided with the plane bearing (19) that is used for thrust between rotor (16) and the main bearing (15), plane bearing (19) comprises upper supporting piece (19.1), lower support element (19.4) and be positioned at upper supporting piece (19.1) and lower support element (19.4) between rolling assembly, the upper supporting piece (19.1) of plane bearing (19), lower support element (19.4) and the equal pine of rolling assembly are enclosed within on the cylindrical of bent axle (13), it is characterized in that the maximal clearance between upper supporting piece (19.1) and the bent axle (13) is L1, the external diameter of setting bent axle (13) is a, and its relation satisfies 0.2mm＜L1＜a/5.
2. the thrust device of rotary compressor according to claim 1, it is characterized in that the maximal clearance between described rolling assembly and the bent axle (13) is L2, maximal clearance between lower support element (19.4) and the bent axle (13) is L3, gap between the cast aluminium of rolling assembly and rotor (16) is L5, gap between the cast aluminium of lower support element (19.4) and rotor (16) is L4, its relation satisfies L3＜L4, L2＜L5.
3. the thrust device of rotary compressor according to claim 2 is characterized in that described L1＜L2≤L3.
4. the thrust device of rotary compressor according to claim 3, the external diameter (a) that it is characterized in that internal diameter (the b)＞bent axle (13) of described lower support element (19.4), simultaneously, the institute of rolling assembly and lower support element (19.4) has point of contact and is positioned at all the time on the lower support element (19.4).
5. the thrust device of rotary compressor according to claim 3, the external diameter (a) that it is characterized in that internal diameter (the d)＞bent axle (13) of described upper supporting piece (19.1), simultaneously, the institute of rolling assembly and upper supporting piece (19.1) has point of contact and is positioned at all the time on the upper supporting piece (19.1).
6. the thrust device of rotary compressor according to claim 3 is characterized in that the external diameter (a) of internal diameter (the c)＞bent axle (13) of described rolling assembly, the internal diameter (f) of the cast aluminium of the external diameter of rolling assembly (e)＜rotor (16).
7. according to the thrust device of the arbitrary described rotary compressor of claim 1 to 6, it is characterized in that described rolling assembly comprises the rolling element (19.2) that is arranged in the retainer (19.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205239660U CN201779021U (en) | 2010-09-03 | 2010-09-03 | Thrust device of rotary type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205239660U CN201779021U (en) | 2010-09-03 | 2010-09-03 | Thrust device of rotary type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779021U true CN201779021U (en) | 2011-03-30 |
Family
ID=43792233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205239660U Expired - Fee Related CN201779021U (en) | 2010-09-03 | 2010-09-03 | Thrust device of rotary type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452845A (en) * | 2013-08-22 | 2013-12-18 | 广东美芝制冷设备有限公司 | Rotary compressor |
-
2010
- 2010-09-03 CN CN2010205239660U patent/CN201779021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452845A (en) * | 2013-08-22 | 2013-12-18 | 广东美芝制冷设备有限公司 | Rotary compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20190903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |