CN105697340A - Crankshaft used for refrigerating compressor - Google Patents
Crankshaft used for refrigerating compressor Download PDFInfo
- Publication number
- CN105697340A CN105697340A CN201610206872.2A CN201610206872A CN105697340A CN 105697340 A CN105697340 A CN 105697340A CN 201610206872 A CN201610206872 A CN 201610206872A CN 105697340 A CN105697340 A CN 105697340A
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- CN
- China
- Prior art keywords
- oil
- bent axle
- crankshaft
- machining area
- groove
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0261—Hermetic compressors with an auxiliary oil pump
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a crankshaft used for a refrigerating compressor. The crankshaft comprises a centrifugal pump and a viscosity pump. The centrifugal pump comprises an oil cavity and an oil suction pipe or an eccentric oil cavity. An oil groove is formed in the outer surface of the viscosity pump, and an upper oil hole and a lower oil hole are formed in the starting point and the finishing point of the oil groove respectively. The diameter of a non-machining area in the middle of the crankshaft is smaller than the diameter of a machining area on the upper side and the diameter of a machining area on the lower side of the crankshaft, and an oil storage space is formed. An oil supplement groove is formed in the crankshaft, an opening of the oil supplement groove is located in the non-machining area, and the oil supplement groove extends downwards along the machining areas. An oil way of the crankshaft is designed again, local lubrication of an abrasion area of the crankshaft is enhanced, the oil way is more reasonable in structure, enough oil can be provided for the part, located in the severe surrounding environment, of the crankshaft of the compressor, lubrication between kinematic pairs is guaranteed, the fault that galling is caused because local lubrication of a position near the lower oil hole of the crankshaft is insufficient is reduced, and reliability of the compressor is improved.
Description
Technical field
The present invention relates to refrigerant compression technical field, specifically a kind of bent axle for refrigeration compressor。
Background technology
Refrigeration compressor is generally disposed at the bottom rear of refrigerator, and its effect is the circulating refrigerant in compression, conveying refrigerator system, thus being transferred to surrounding from refrigerator inside by heat。When freezer compressor runs, by motor driven crankshafts bar linkage motion mechanism, then drive piston cylinder units that cold-producing medium is compressed。Bent axle is a vitals in the crankshaft link rod motion mechanism of compressor, and it has pump functional oil, on the one hand Castor Oil bent axle-connecting rod-piston motion, it is prevented that motion is stuck；Piston-cylinder unit can be cooled down on the other hand。At present, returning in fault type relating to of compressor, bent axle plucking fault is present in around the lower oilhole position of a week more。Fault discovery by analysis, under bent axle, oil-hole location coordinates with the lower end revolute pair of crankshaft hole, bears the moment loading produced when compressing from piston-cylinder unit herein and (during piston compression cold-producing medium, by connecting rod, power is transferred to bent axle。Due to the support between bent axle and crankcase, form moment and pass to the bent axle near lower oilhole), operating mode is relatively severe, and lower oilhole opposite side easily insufficient causes bent axle plucking fault because lubricating。
Summary of the invention
The technical problem to be solved is in that proposing one can increase refrigeration oil supply, it is to avoid the insufficient bent axle for refrigeration compressor causing the faults such as plucking of bent axle partial lubrication。
For solving above-mentioned technical problem, a kind of bent axle for refrigeration compressor of the present invention includes centrifugal pump and Wesco pump, and described centrifugal pump includes oil pocket and fuel sucking pipe or eccentric oil pocket；The outer surface of described Wesco pump is provided with oil groove, and the beginning and end of described oil groove is respectively equipped with lower oilhole and upper oil hole；The diameter of the non-machining area in the middle part of described bent axle, less than the diameter of the machining area of its upper and lower both sides, forms oil storage space；Described bent axle is provided with repairing groove, and the opening of described repairing groove is positioned at described non-machining area, and described repairing groove downwardly extends along machining area。
Above-mentioned a kind of bent axle for refrigeration compressor, the lower end of described repairing groove is positioned on described bent axle, the right opposite side of described lower oilhole。
Above-mentioned a kind of bent axle for refrigeration compressor, described repairing groove extends downward the horizontal level beyond described lower oilhole。
Above-mentioned a kind of bent axle for refrigeration compressor, the diameter 1～2mm less of the diameter of described machining area of described non-machining area。
Above-mentioned a kind of bent axle for refrigeration compressor, described oil groove is helicla flute。
Due to the fact that and have employed above-mentioned technical pattern, it is by redesigning the oil circuit of bent axle, partial lubrication is strengthened for bent axle region easy to wear, make oil channel structures more reasonable, the bent axle making compressor is in the position of severe surrounding can obtain enough oil mass supplies, ensure that the lubrication between kinematic pair, decrease the faults such as the plucking that under bent axle, near oilhole, position causes because partial lubrication is insufficient, improve compressor reliability。Meanwhile, repairing groove can supplement oil mass is also affected by oil storage space restriction, it is to avoid valve block liquid hammer that bent axle causes because pump oil mass is excessive, the problem such as noise is big, performance is low。
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the compressor adopting bent axle of the present invention；
Fig. 2 is the assembling structural representation of bent axle and crankcase in Fig. 1；
Fig. 3 is the Facad structure schematic diagram of bent axle of the present invention；
Fig. 4 is left side relative to Fig. 3 to structural representation；
Fig. 5 is the backsight structural representation relative to Fig. 3；
Fig. 6 is the A-A sectional structure schematic diagram in Fig. 4。
Detailed description of the invention
As shown in Figure 1, the refrigeration compressor adopting bent axle of the present invention includes an airtight shell 01, piston-cylinder unit 02, bent axle-linkage 03 and electric motor units 04, shell 01 is provided with suction nozzle 11 and exhaustor 12, cold-producing medium enters piston-cylinder unit 02 through suction nozzle 11, electric motor units 04 drives bent axle-linkage 03, driving piston-cylinder unit 02 to move reciprocatingly thus compressing cold-producing medium, discharging compressor housing 01 through exhaustor 12。
As in figure 2 it is shown, bent axle 05 of the present invention is assembled together with crankcase 06。Shown in Fig. 3, bent axle 05 includes centrifugal pump 07 and Wesco pump 08, and centrifugal pump 07 includes fuel sucking pipe 71 and oil pocket 72, adopts the press mode of routine to assemble between fuel sucking pipe 71 and oil pocket 72, utilize centrifugal action, refrigeration oil 13 is delivered up (shown in Fig. 1。Wherein fuel sucking pipe 71 may be used without the eccentric oil pocket of at present ripe application and replaces))。
As shown in Figure 3 and Figure 4, the outer surface of Wesco pump 08 is provided with helical oil groove 82(and adopts the spiral fluted effect that oils better, spiral and the viscosity of oil can be utilized, oil is delivered up), starting point (bottom) and terminal (top) position of this helical oil groove 82 are respectively equipped with lower oilhole 81 and upper oil hole 83。The diameter of the non-machining area 51 in the middle part of bent axle 05, less than the diameter (both diameter difference are from being 1～2mm) of the machining area 50,52 of its upper and lower both sides, makes non-machining area 51 form oil storage space 65(please refer to shown in Fig. 2 with crankcase 06)。
As shown in Figure 5 and Figure 6, bent axle 05 is additionally provided with repairing groove 09, repairing groove 09 is positioned at the right opposite side of lower oilhole 81, the opening 92(of repairing groove 09 i.e. its upper end) communicate with non-machining area 51, the cell body of repairing groove 09 downwardly extends along machining area 50, the cross sectional shape of repairing groove 09, extension track are not limit, and its bottom 93 is positioned at the position of the bottom level position or more lower of lower oilhole 81。
Claims (5)
1., for a bent axle for refrigeration compressor, including centrifugal pump and Wesco pump, described centrifugal pump includes oil pocket and fuel sucking pipe or eccentric oil pocket；The outer surface of described Wesco pump is provided with oil groove, and the beginning and end of described oil groove is respectively equipped with lower oilhole and upper oil hole；It is characterized in that, the diameter of the non-machining area in the middle part of described bent axle, less than the diameter of the machining area of its upper and lower both sides, forms oil storage space；Described bent axle is provided with repairing groove, and the opening of described repairing groove is positioned at described non-machining area, and described repairing groove downwardly extends along machining area。
2. a kind of bent axle for refrigeration compressor as claimed in claim 1, it is characterised in that the lower end of described repairing groove is positioned on described bent axle, the right opposite side of described lower oilhole。
3. a kind of bent axle for refrigeration compressor as claimed in claim 1, it is characterised in that described repairing groove extends downward the horizontal level beyond described lower oilhole。
4. a kind of bent axle for refrigeration compressor as described in claim 1,2 or 3, it is characterised in that the diameter 1～2mm less of the diameter of described machining area of described non-machining area。
5. a kind of bent axle for refrigeration compressor as described in claim 1,2 or 3, it is characterised in that described oil groove is helicla flute。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206872.2A CN105697340B (en) | 2016-04-01 | 2016-04-01 | A kind of bent axle for refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610206872.2A CN105697340B (en) | 2016-04-01 | 2016-04-01 | A kind of bent axle for refrigeration compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697340A true CN105697340A (en) | 2016-06-22 |
| CN105697340B CN105697340B (en) | 2018-01-02 |
Family
ID=56218276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610206872.2A Active CN105697340B (en) | 2016-04-01 | 2016-04-01 | A kind of bent axle for refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697340B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286218A (en) * | 2016-09-21 | 2017-01-04 | 加西贝拉压缩机有限公司 | A kind of crankshaft for refrigeration compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427154A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Crank shaft of refrigeration compressor |
| CN201461402U (en) * | 2009-05-05 | 2010-05-12 | 上海日立电器有限公司 | Rotary type compressor provided with tool crank shaft without withdrawal groove |
| CN202417883U (en) * | 2011-12-29 | 2012-09-05 | 青岛宝兰格制冷有限公司 | Refrigeration compressor with novel crankshaft oil groove structure |
| CN202579103U (en) * | 2011-11-17 | 2012-12-05 | 合肥凌达压缩机有限公司 | Oil supply crankshaft and closed reciprocating compressor using same |
| CN203321778U (en) * | 2013-03-21 | 2013-12-04 | 加西贝拉压缩机有限公司 | Crankshaft used for compressor |
| CN205559211U (en) * | 2016-04-01 | 2016-09-07 | 加西贝拉压缩机有限公司 | A bent axle for compressor |
-
2016
- 2016-04-01 CN CN201610206872.2A patent/CN105697340B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427154A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Crank shaft of refrigeration compressor |
| CN201461402U (en) * | 2009-05-05 | 2010-05-12 | 上海日立电器有限公司 | Rotary type compressor provided with tool crank shaft without withdrawal groove |
| CN202579103U (en) * | 2011-11-17 | 2012-12-05 | 合肥凌达压缩机有限公司 | Oil supply crankshaft and closed reciprocating compressor using same |
| CN202417883U (en) * | 2011-12-29 | 2012-09-05 | 青岛宝兰格制冷有限公司 | Refrigeration compressor with novel crankshaft oil groove structure |
| CN203321778U (en) * | 2013-03-21 | 2013-12-04 | 加西贝拉压缩机有限公司 | Crankshaft used for compressor |
| CN205559211U (en) * | 2016-04-01 | 2016-09-07 | 加西贝拉压缩机有限公司 | A bent axle for compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286218A (en) * | 2016-09-21 | 2017-01-04 | 加西贝拉压缩机有限公司 | A kind of crankshaft for refrigeration compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105697340B (en) | 2018-01-02 |
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