CN203743180U - Novel compressor crankshaft and compressor - Google Patents
Novel compressor crankshaft and compressor Download PDFInfo
- Publication number
- CN203743180U CN203743180U CN201320849892.3U CN201320849892U CN203743180U CN 203743180 U CN203743180 U CN 203743180U CN 201320849892 U CN201320849892 U CN 201320849892U CN 203743180 U CN203743180 U CN 203743180U
- Authority
- CN
- China
- Prior art keywords
- compressor
- rotor
- flow groove
- crankshaft
- compressor crankshaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005057 refrigeration Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000010726 refrigerant oil Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 20
- 239000003507 refrigerant Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The utility model discloses a novel compressor crankshaft and a compressor. The compressor comprises the compressor crankshaft and a shell body internally provided with a motor and a pump body assembly, wherein the compressor crankshaft comprises a long shaft, an eccentric part and a short shaft; a through-flow groove extending to the eccentric part from the end part of the long shaft is formed in the circumferential wall of the long shaft; a through-flow groove formed in the compressor crankshaft and the inner wall of a rotor of the motor form a through-flow hole for return refrigerant oil. According to the utility model, on the premise of high strength of the compressor crankshaft, the through-flow groove is formed in the compressor crankshaft and is matched with the inner circle of the rotor to form the channel for the return of the refrigerant oil, so that the reduction of the rotor efficiency caused when a magnetic field of the rotor is affected if the groove hole is formed in the rotor can be avoided, the oil-gas separation effect is stable, and the compressor performance can be favorably improved. Only the groove needs to be processed in the compressor crankshaft, so that the processing process is simple and easy to realize.
Description
Technical field
The utility model belongs to Compressor Technology field, relates in particular to the compressor crank shaft and the compressor that on a kind of compressor, use.
Background technique
As shown in Figure 1, the closed rotary compressor being used on the household electric appliance such as air-conditioning generally includes frame 100, motor, compressor crank shaft 101, pump assembly, gas-liquid separator 102, sucking pipe 103 and outlet pipe 104.Wherein, motor is made up of stator 105 and rotor 106, and pump assembly is communicated with gas-liquid separator 102 through sucking pipe 103.The motor magnetic field that changes after energising, rotor 106 cut magnetic induction line in the magnetic field changing produces induction current, and follow variation magnetic field and rotate, rotor 106 drives pump assembly 107 by low pressure refrigerant boil down to high pressure refrigerant by compressor crank shaft 101, high pressure refrigerant, after the outer discharge of pump assembly 107, drains into air conditioner circulating system from outlet pipe 104.Because pump assembly 107 is to carry out work under refrigeration oil lubricated, in the time of compression refrigerant, part refrigeration oil can be discharged with high pressure refrigerant outside pump assembly, and enter with refrigerant in the condenser or vaporizer of air conditioner circulating system, affect refrigerant and extraneous heat exchange, cause compressor refrigerating capacity to decline, efficiency is low.
For head it off, in prior art, conventional way is to set up oil baffle 108 at rotor 106 tops, oil baffle 108 is with rotor 106 rotations, on rotor 106 inwalls, process through flow hole a(as shown in Figure 2) simultaneously, when high pressure refrigerant upwards passes through oil baffle 108, oil baffle 108 can carry out gas-liquid separation to refrigeration oil and refrigerant, the through flow hole a of isolated refrigeration oil in rotor inner wall is back in the oil sump of compressor bottom, thereby reduce the freezing oil mass in two devices that enter air-conditioning system, avoid heat exchange to exert an influence.
But through flow hole is set on rotor and easily causes the problem aspect following two: because through flow hole is to process on rotor, offering hole slot can exert an influence to the magnetic field of rotor, easily causes the decrease in efficiency of motor; Secondly, because rotor adopts extrusion process manufacture, in press casting procedure, cannot ensure that through flow hole is fixed on a position, be that on rotor, the relative compressor crank shaft in the position of through flow hole is unfixing, when through flow hole is during in diverse location, oil vapour separating effect can produce difference, easily causes compressor performance fluctuation.
Model utility content
The purpose of this utility model be to provide a kind of can reduce air-conditioning system oil content and do not affect the compressor of rotor efficiency and this compressor on the compressor crank shaft that uses.
To achieve these goals, the utility model is taked following technical solution:
Novel compressor crankshaft, comprises major axis, eccentric part and minor axis, is provided with the through-flow groove extending to described eccentric part from described major axis end on the perisporium of described major axis.
Through-flow groove of the present utility model is to be parallel to the straight trough that compressor crank shaft axis arranges.
Through-flow groove of the present utility model is spiral chute.
Through-flow groove of the present utility model is arranged along even circumferential interval.
Cross section semicircular in shape or the arc of through-flow groove of the present utility model.
A kind of compressor, comprising: aforementioned compressor crank shaft, in be provided with the frame of motor and pump assembly; The inwall of the through-flow groove on aforementioned compressor crank shaft and the rotor of described motor forms the through flow hole of backflow refrigeration oil.
The utility model by offering through-flow groove on compressor crank shaft perisporium, through-flow groove coordinates the return flow line that forms refrigeration oil with rotor inner wall, processing technology is simple, need not change the structure of rotor, thereby avoid rotor field have a negative impact and cause rotor efficiency to decline, be conducive to ensure the stability of compressor performance.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of compressor in prior art;
Fig. 2 is the plan view of compressor drum in prior art;
Fig. 3 is the utility model embodiment 1 structural representation;
Fig. 4 is the structural representation of the utility model embodiment 1 compressor crank shaft;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the utility model embodiment 2 structural representation;
Fig. 7 is the structural representation of the utility model embodiment 2 compressor crank shafts.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in more detail.
Embodiment
Embodiment 1
As shown in Figure 3, compressor of the present utility model comprises frame 1, be arranged at motor and the pump assembly of frame 1 inside, be arranged at the gas-liquid separator 2 of frame 1 one sides, gas-liquid separator 2 is communicated with the pump assembly of compressor by suction tude 3, thereby refrigeration agent is entered the cylinder of compressor from gas-liquid separator 2.For convenience of description, upper and lower with the axis definition of compressor crank shaft in Fig. 3.
Motor of the present utility model comprises and is fixed on the stator 1-1 on frame 1 inwall and is rotatably arranged at the rotor 1-2 in stator 1-1, and compressor crank shaft 3 is by rotor 1-2 driven rotary.Pump assembly is arranged in frame 1, is positioned at below motor.The pump assembly of the present embodiment comprises upper flange 4, cylinder 5 and the lower flange 6 installed along compressor crank shaft 3 axis successively, upper flange 4 and lower flange 6 are arranged at respectively in the both ends of the surface of cylinder 5, form an enclosed space, roller 7 is installed on the eccentric part of compressor crank shaft 3, roller 7 rolls along cylinder 5 inwalls under the drive of compressor crank shaft 3, thereby refrigeration agent is compressed.
In conjunction with Fig. 4 and Fig. 5, the compressor crank shaft 3 of the present embodiment comprises major axis 3-1, eccentric part 3-2 and minor axis 3-3, on the periphery wall of major axis 3-1, be processed with through-flow groove 3a, through-flow groove 3a extends from major axis 3-1 end to eccentric part 3-2 direction, the through-flow groove 3a of the present embodiment is parallel to the Axis Extension of compressor crank shaft 3, and through-flow groove 3a is straight trough.The shape of cross section semicircular in shape of through-flow groove 3a arranges a pair ofly along the spaced apart through-flow groove 3a of even circumferential on the perisporium of major axis 3-1, and through-flow groove 3a is arranged symmetrically with.Through-flow groove 3a coordinates formation through flow hole with rotor 1-2 inner circle wall, when compressor operation, the refrigeration oil of being separated by the oil baffle of rotor top is back in the oil sump in compressor via the through flow hole forming between compressor crank shaft and rotor.
Embodiment 2
As shown in Figure 6, establish the frame 1 of motor and pump assembly in the compressor of the present embodiment comprises, the rotor 1-2 of motor drives roller 7 in the interior rolling of cylinder 5 by compressor crank shaft 3, and the refrigeration agent that enters pump assembly is compressed.Simultaneously with reference to Fig. 7, the present embodiment as different from Example 1, through-flow groove 3a on the major axis 3-1 that is machined in compressor crank shaft 3 of the present embodiment is not straight trough, but the spiral chute extending to eccentric part 3-2 direction from major axis 3-1 end, through-flow groove 3a is in the shape of a spiral along the perisporium setting of major axis 3-1, on the present embodiment major axis 3-1, be provided with a pair of through-flow groove 3a, also semicircular in shape of the shape of cross section of through-flow groove 3a.Through-flow groove 3a on major axis 3-1 coordinates formation through flow hole with rotor 1-2 inwall, separated refrigeration oil can be back in oil sump through through flow hole.
The utility model is ensureing under the prerequisite of compressor crank shaft intensity, through-flow groove is set on compressor crank shaft, after coordinating with rotor inner circle, through-flow groove forms the passage that refrigeration oil refluxes, on rotor, need not process any slotted eye, can avoid processing slotted eye on rotor and affect rotor field, cause rotor efficiency to decline, and through-flow groove is opened on compressor crank shaft, the relative compressor crank shaft in position of groove is fixed, can realize standardization batch production, oil vapour separating effect is stable, is conducive to promote compressor performance.Simultaneously the utility model only need to be slotted on compressor crank shaft, and processing technology is simple, be easy to realize.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that, still can modify or be equal to replacement embodiment of the present utility model, the quantity of offering as through-flow groove, the size of through-flow groove and the shape of through-flow groove, those skilled in the art all can make respective change according to actual production demand under the prerequisite that ensures compressor crank shaft intensity, therefore, do not depart from any amendment of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the scope of technical solutions of the utility model.
Claims (6)
1. Novel compressor crankshaft, comprises major axis, eccentric part and minor axis, it is characterized in that:
On the perisporium of described major axis, be provided with the through-flow groove extending to described eccentric part from described major axis end.
2. Novel compressor crankshaft as claimed in claim 1, is characterized in that: described through-flow groove is to be parallel to the straight trough that compressor crank shaft axis arranges.
3. Novel compressor crankshaft as claimed in claim 1, is characterized in that: described through-flow groove is spiral chute.
4. Novel compressor crankshaft as claimed in claim 1, is characterized in that: described through-flow groove is arranged along even circumferential interval.
5. Novel compressor crankshaft as claimed in claim 1, is characterized in that: cross section semicircular in shape or the arc of described through-flow groove.
6. a compressor, is characterized in that, comprising: Novel compressor crankshaft as described in claim 1 to 5 any one, in be provided with the frame of motor and pump assembly; The inwall of the through-flow groove on described compressor crank shaft and the rotor of described motor forms the through flow hole of backflow refrigeration oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849892.3U CN203743180U (en) | 2013-12-20 | 2013-12-20 | Novel compressor crankshaft and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849892.3U CN203743180U (en) | 2013-12-20 | 2013-12-20 | Novel compressor crankshaft and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743180U true CN203743180U (en) | 2014-07-30 |
Family
ID=51342984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849892.3U Expired - Fee Related CN203743180U (en) | 2013-12-20 | 2013-12-20 | Novel compressor crankshaft and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697055A (en) * | 2013-12-20 | 2014-04-02 | 珠海凌达压缩机有限公司 | Compressor crankshaft and compressor |
-
2013
- 2013-12-20 CN CN201320849892.3U patent/CN203743180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697055A (en) * | 2013-12-20 | 2014-04-02 | 珠海凌达压缩机有限公司 | Compressor crankshaft and 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 |