CN202520559U - Crankshaft structure of rolling rotor compressor - Google Patents

Crankshaft structure of rolling rotor compressor Download PDF

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Publication number
CN202520559U
CN202520559U CN 201220096476 CN201220096476U CN202520559U CN 202520559 U CN202520559 U CN 202520559U CN 201220096476 CN201220096476 CN 201220096476 CN 201220096476 U CN201220096476 U CN 201220096476U CN 202520559 U CN202520559 U CN 202520559U
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CN
China
Prior art keywords
oilhole
crankshaft
main shaft
eccentric shaft
countershaft
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CN 201220096476
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Chinese (zh)
Inventor
曹小军
吴嘉晖
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Guangdong Meizhi Precision Manufacturing Co Ltd
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Guangdong Meizhi Precision Manufacturing Co Ltd
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Priority to CN 201220096476 priority Critical patent/CN202520559U/en
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Abstract

Disclosed is a crankshaft structure of a rolling rotor compressor. A motor and a compression mechanism are arranged in a shell of the rolling rotor compressor, a rotor in the motor is connected with a crankshaft in the compression mechanism, the compression mechanism further comprises a cylinder and a piston accommodated in the cylinder, the crankshaft drives the piston to eccentrically rotate in a compression cavity of the cylinder, a main bearing and a supplementary bearing which are used for supporting the crankshaft are respectively disposed on two sides of the cylinder, the crankshaft comprises a spindle, an eccentric shaft and a counter shaft, an oil hole is arranged in the crankshaft and divided into two sections, and the two sections of the oil hole are non-axially arranged. A spindle oil hole is arranged in the spindle, an eccentric shaft oil hole is arranged in the eccentric shaft, a counter shaft oil hole is arranged in the counter shaft, the counter shaft oil hole is arranged in a section, the axis of the counter shaft oil hole is coaxial with the axis of the crankshaft, the spindle oil hole and the eccentric shaft oil hole are arranged in another section, and the axis of the spindle oil hole and the axis of the eccentric shaft oil hole are coaxial and are deviated to the axis of the eccentric shaft. The crankshaft structure of the rolling rotor compressor has the advantages of low oil discharge quantity and manufacturing cost.

Description

The crankshaft structure of rolling rotor type compressor
Technical field
The utility model relates to the crankshaft structure of a kind of rolling rotor type compressor, particularly a kind of rolling rotor type compressor.
Background technique
The crankshaft structure of rolling rotor type compressor generally is provided with a coaxial ladder oilhole in the center; For the fuel delivery that guarantees compressing mechanism abundant; The oilhole end that is positioned at crankshaft center is provided with the blade that oils usually; Even also be provided with oil pump case, and can strengthen the pump oil power of the oilhole of crankshaft center on the one hand through the setting blade that oils, be on the cross-wise direction of the oilhole of bent axle, to form the partial high pressure district on the other hand; More oil is flowed in the compression pump housing through the side direction oilhole on the bent axle, guarantee the lubricated and sealing of compressing mechanism.In addition; Because compressing mechanism needs the bent axle with eccentric shaft structure to drive; The unbalanced weight that has so just caused compressing mechanism is the unbalanced weight of balance compressing mechanism, generally is that two equilibrium blocks are set on the rotor of rolling rotor type compressor.
The model utility content
The purpose of the utility model aims to provide a kind of simple and reasonable, crankshaft structure of telling the rolling rotor type compressor that oil mass is few, fabricating cost is low, to overcome deficiency of the prior art.
Press the crankshaft structure of a kind of rolling rotor type compressor of this purpose design; Be provided with motor and compressing mechanism in the housing of rolling rotor type compressor, rotor in the motor and the bent axle in the compressing mechanism join, and compressing mechanism also comprises cylinder and is accommodated in the piston in the cylinder; Crankshaft driving piston is made eccentric rotary in the compression chamber of cylinder; Be used to support the main bearing of bent axle and the both sides that supplementary bearing is separately positioned on cylinder, bent axle comprises main shaft, eccentric shaft and countershaft, is provided with oilhole in the bent axle; Its structure characteristic is that oilhole is divided into two sections, and these two sections oilhole disalignments are provided with.
Be provided with the main shaft oilhole in the said main shaft; Be provided with the eccentric shaft oilhole in the eccentric shaft, be provided with the countershaft oilhole in the countershaft, wherein; The countershaft oilhole is one section; The axis coaxle setting of the axis of countershaft oilhole and bent axle, main shaft oilhole and eccentric shaft oilhole are another section, the axis of the axis coaxle setting of the axis of main shaft oilhole and eccentric shaft oilhole and deflection eccentric shaft.
Said main shaft is provided with main shaft side direction oilhole; Eccentric shaft is provided with eccentric shaft side direction oilhole; Main shaft side direction oilhole is arranged on the offset direction of main shaft oilhole, and eccentric shaft side direction oilhole is arranged on the offset direction of main shaft oilhole and lags behind 0 °~90 ° with respect to the sense of rotation of bent axle.
The cross sectional area of said countershaft oilhole is S1, and the cross sectional area of main shaft oilhole is S2, and S1 >=S2 is arranged.
Said countershaft is provided with countershaft side direction oilhole.
The utility model adopts above-mentioned technological scheme, the oilhole of bent axle is divided into two sections, and these two sections oilhole disalignments is provided with; Wherein, The axis coaxle setting of the axis of countershaft oilhole and bent axle, the axis of the axis coaxle setting of the axis of main shaft oilhole and eccentric shaft oilhole and deflection eccentric shaft, its purpose is to amplify by the centrifugal force from the housing bottom pump of compressor next oil of countershaft oilhole through centrifugal pump oil; On the cross section of eccentric shaft oilhole, form partial high pressure; Make its side direction oilhole through being provided with on the bent axle more smoothly: eccentric shaft side direction oilhole and main shaft side direction oilhole are transported to compressing mechanism, thereby guarantee the abundant pump oil mass of bent axle.Can save the blade part that oils that is provided with usually on the bent axle like this, reduce the fabricating cost of compressor.
Simultaneously; The axis of the countershaft oilhole in the utility model and the axis coaxle setting of bent axle; The axis of the axis coaxle setting of the axis of main shaft oilhole and eccentric shaft oilhole and deflection eccentric shaft; Can effectively reduce the unbalanced weight of the eccentric shaft of bent axle, thereby reduce the consumption of the equilibrium block of extra setting, also can reduce the fabricating cost of compressor.
In addition; Main shaft side direction oilhole in the utility model is arranged on the offset direction of main shaft oilhole; Eccentric shaft side direction oilhole is arranged on the offset direction of main shaft oilhole and lags behind 0 °~90 ° with respect to the sense of rotation of bent axle, and the direction of the side direction oilhole that is provided with on the countershaft can be arranged arbitrarily.The purpose and meaning of this place's design are: in case after cancelling the blade that oils; If the oilhole non-migration of bent axle; On the cross section of the oilhole of bent axle, just can not form partial high pressure; The amount that oil gets into the side direction oilhole on the bent axle can reduce, and a large amount of oil are swarmed the top of bent axle, will increase the oil mass of telling of compressor.And arrange the side direction oilhole on the bent axle by the technological scheme that the utility model provides: main shaft side direction oilhole, eccentric shaft side direction oilhole and countershaft side direction oilhole; Just can reach such purpose: the axis of countershaft side direction oilhole and the axis coaxle setting of bent axle; Countershaft side direction oilhole can not form partial high pressure on the cross section of the oilhole in this segment limit, so can be arranged arbitrarily; Main shaft side direction oilhole is arranged on the offset direction of main shaft oilhole, and the centrifugal force of the oil that this side up is maximum, and the zone of high pressure in the cross section of the oilhole in this segment limit is over against the side direction oilhole, and the side direction supply capability can significantly promote; Eccentric shaft side direction oilhole is arranged on the offset direction of main shaft oilhole and lags behind 0 °~90 ° with respect to the sense of rotation of bent axle, and the zone of high pressure major part in the cross section of the oilhole in this segment limit is over against the side direction oilhole, and the side direction supply capability also can promote.And, can reach such effect: the side direction fuel delivery of the side direction fuel delivery<main shaft of the side direction fuel delivery<eccentric shaft of countershaft, just opposite with common design proposal, can reach compressing mechanism fuel delivery demand assigned purpose.So, the supply capability of main bearing and eccentric shaft can significantly promote, and the oil mass of going out from the top of the oilhole of bent axle can reduce a lot.
The cross sectional area of the countershaft oilhole in the utility model is S1, and the cross sectional area of main shaft oilhole is S2, and S1 >=S2 is arranged, and can reduce the oil mass of pouring into compressor top from the oilhole of bent axle, more can reach the oil mass problem of telling of improving compressor.
The utility model can improve the transportation problem and the unbalanced weight that reduces compressing mechanism of the oilhole centrifugal pump oil of bent axle, the cost that reduces compressor with improve the problem of telling oil mass, its have simple and reasonable, tell the characteristics that oil mass is few, fabricating cost is low.
Description of drawings
Fig. 1 is the utility model one embodiment's a broken section structural representation.
Fig. 2 is the main TV structure schematic representation of bent axle.
Fig. 3 is that A-A among Fig. 2 is to sectional drawing.
Fig. 4 is that B-B among Fig. 3 is to sectional drawing.
Fig. 5 is that C-C among Fig. 3 is to sectional drawing.
Fig. 6 is that D-D among Fig. 3 is to sectional drawing.
Among the figure: 1 is housing, and 2 is motor, and 3 is compressing mechanism, and 4 is bent axle, and 5 is cylinder; 6 is main bearing, and 7 is supplementary bearing, and 8 is piston, and 4.1 is main shaft, and 4.1a is the main shaft oilhole; 4.2 be eccentric shaft, 4.2a is the eccentric shaft oilhole, 4.3 is countershaft, and 4.3a is the countershaft oilhole; 4.4 be main shaft side direction oilhole, 4.5 is eccentric shaft side direction oilhole, 4.6 is countershaft side direction oilhole, and the arrow ω among the figure is a sense of rotation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 1-Fig. 6, the crankshaft structure of this rolling rotor type compressor is provided with motor 2 and compressing mechanism 3 in the housing 1 of rolling rotor type compressor; Bent axle 4 in rotor in the motor 2 and the compressing mechanism 3 joins; Compressing mechanism 3 also comprises cylinder 5 and is accommodated in the piston 8 in the cylinder 5 that bent axle 4 driven plunger 8 are made eccentric rotary in the compression chamber of cylinder 5, be used to support the main bearing 6 of bent axle 4 and the both sides that supplementary bearing 7 is separately positioned on cylinder 5; Bent axle 4 comprises main shaft 4.1, eccentric shaft 4.2 and countershaft 4.3; Be provided with oilhole in the bent axle 4, oilhole is divided into two sections, and these two sections oilhole disalignments are provided with.The end face that the end face of piston 8 and main bearing 6, supplementary bearing 7 are positioned at cylinder 5 is respectively that the gap contacts and slide relative.
Be provided with main shaft oilhole 4.1a in the main shaft 4.1; Be provided with eccentric shaft oilhole 4.2a in the eccentric shaft 4.2, be provided with countershaft oilhole 4.3a in the countershaft 4.3, wherein; Countershaft oilhole 4.3a is one section; The axis of countershaft oilhole 4.3a and the axis coaxle setting of bent axle 4, main shaft oilhole 4.1a and eccentric shaft oilhole 4.2a are another section, the axis of the axis coaxle setting of the axis of main shaft oilhole 4.1a and eccentric shaft oilhole 4.2a and deflection eccentric shaft 4.2.
Main shaft 4.1 is provided with main shaft side direction oilhole 4.4; Eccentric shaft 4.2 is provided with eccentric shaft side direction oilhole 4.5; Main shaft side direction oilhole 4.4 is arranged on the offset direction of main shaft oilhole 4.1a; Eccentric shaft side direction oilhole 4.5 is arranged on the offset direction of main shaft oilhole 4.1a and lags behind 0 °~90 ° with respect to the sense of rotation of bent axle 4, sees Fig. 5.
In the present embodiment, main shaft side direction oilhole 4.4 is arranged on the axle journal place of main shaft 4.1, sees Fig. 3.Eccentric shaft side direction oilhole 4.5 is arranged on the periphery of eccentric shaft 4.2, sees Fig. 5.
The cross sectional area of countershaft oilhole 4.3a is S1, and the cross sectional area of main shaft oilhole 4.1a is S2, and S1 >=S2 is arranged.
Countershaft 4.3 is provided with countershaft side direction oilhole 4.6.
In the present embodiment, countershaft side direction oilhole 4.6 is arranged on the axle journal place of countershaft 4.3, sees Fig. 2.

Claims (5)

1. the crankshaft structure of a rolling rotor type compressor; Be provided with motor (2) and compressing mechanism (3) in the housing of rolling rotor type compressor (1); Bent axle (4) in rotor in the motor (2) and the compressing mechanism (3) joins; Compressing mechanism (3) also comprises cylinder (5) and is accommodated in the piston (8) in the cylinder (5) that bent axle (4) driven plunger (8) is made eccentric rotary in the compression chamber of cylinder (5), be used to support the main bearing (6) of bent axle (4) and the both sides that supplementary bearing (7) is separately positioned on cylinder (5); Bent axle (4) comprises main shaft (4.1), eccentric shaft (4.2) and countershaft (4.3); Bent axle is provided with oilhole in (4), it is characterized in that oilhole is divided into two sections, and these two sections oilhole disalignments are provided with.
2. the crankshaft structure of rolling rotor type compressor according to claim 1; It is characterized in that being provided with in the said main shaft (4.1) main shaft oilhole (4.1a); Be provided with eccentric shaft oilhole (4.2a) in the eccentric shaft (4.2), be provided with countershaft oilhole (4.3a) in the countershaft (4.3), wherein; Countershaft oilhole (4.3a) is one section; The axis coaxle setting of the axis of countershaft oilhole (4.3a) and bent axle (4), main shaft oilhole (4.1a) and eccentric shaft oilhole (4.2a) are another section, the axis of the axis coaxle setting of the axis of main shaft oilhole (4.1a) and eccentric shaft oilhole (4.2a) and deflection eccentric shaft (4.2).
3. the crankshaft structure of rolling rotor type compressor according to claim 2; It is characterized in that said main shaft (4.1) is provided with main shaft side direction oilhole (4.4); Eccentric shaft (4.2) is provided with eccentric shaft side direction oilhole (4.5); Main shaft side direction oilhole (4.4) is arranged on the offset direction of main shaft oilhole (4.1a), and eccentric shaft side direction oilhole (4.5) is arranged on the offset direction of main shaft oilhole (4.1a) and lags behind 0 °~90 ° with respect to the sense of rotation of bent axle (4).
4. according to the crankshaft structure of claim 2 or 3 described rolling rotor type compressors, the cross sectional area that it is characterized in that said countershaft oilhole (4.3a) is S1, and the cross sectional area of main shaft oilhole (4.1a) is S2, and S1 >=S2 is arranged.
5. the crankshaft structure of rolling rotor type compressor according to claim 4 is characterized in that said countershaft (4.3) is provided with countershaft side direction oilhole (4.6).
CN 201220096476 2012-03-14 2012-03-14 Crankshaft structure of rolling rotor compressor Active CN202520559U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220096476 CN202520559U (en) 2012-03-14 2012-03-14 Crankshaft structure of rolling rotor compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220096476 CN202520559U (en) 2012-03-14 2012-03-14 Crankshaft structure of rolling rotor compressor

Publications (1)

Publication Number Publication Date
CN202520559U true CN202520559U (en) 2012-11-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105782225A (en) * 2014-12-18 2016-07-20 珠海格力节能环保制冷技术研究中心有限公司 Self-balancing crankshaft and compressor comprising same
CN106662093A (en) * 2014-08-08 2017-05-10 三菱重工业株式会社 Open-type compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106662093A (en) * 2014-08-08 2017-05-10 三菱重工业株式会社 Open-type compressor
CN105782225A (en) * 2014-12-18 2016-07-20 珠海格力节能环保制冷技术研究中心有限公司 Self-balancing crankshaft and compressor comprising same
CN105782225B (en) * 2014-12-18 2018-06-26 珠海格力节能环保制冷技术研究中心有限公司 Self-balancing bent axle and the compressor for including the self-balancing bent axle

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