CN109356825A - A kind of crankshaft for refrigeration compressor case - Google Patents
A kind of crankshaft for refrigeration compressor case Download PDFInfo
- Publication number
- CN109356825A CN109356825A CN201811260951.7A CN201811260951A CN109356825A CN 109356825 A CN109356825 A CN 109356825A CN 201811260951 A CN201811260951 A CN 201811260951A CN 109356825 A CN109356825 A CN 109356825A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- groove
- bore
- crankshaft
- refrigeration compressor
- 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.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005247 gettering Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of crankshaft for refrigeration compressor case, including cylinder head, cylinder face, cylinder-bore, screw hole, gas vent and groove, cylinder face is set to the front end of cylinder head, and cylinder face is a flat surface, and cylinder-bore, screw hole, gas vent are set on cylinder face；Groove is set on cylinder face and is distributed in around cylinder-bore, and groove is not attached to lead to cylinder-bore, gas vent, screw hole, and the shortest distance between the edge and cylinder-bore of groove, gas vent, screw hole is respectively 2~8mm.Sealing characteristics, heat dissipation performance and the non-deformability of crankcase energy of the present invention while lifting cylinder, to promote the performance and reliability of compressor.It implements simply, and easy to operate, improving cost is low, and combination is flexible, can be used for producing in enormous quantities.
Description
Technical field
The present invention relates to refrigeration compressor art, specifically a kind of crankshaft for refrigeration compressor case.
Background technique
Currently, piston reciprocating compressor is widely used in refrigeration compressor art.In piston reciprocating compressor, crankshaft
The cylinder portion of case is its groundwork region, and piston makees high speed reciprocating motion in cylinder, realizes refrigerant in compressor, ice
Circulation inside case.Shown in FIG. 1 is a kind of existing structure of crankcase, and cylinder face 2 is arranged on cylinder head 11, screw hole
1, gas vent 3, cylinder-bore 4 are set on cylinder face 2.Piston moves in the cylinder, getter assembly (including valve plate, valve block, air-breathing
Silencer etc.) it is fastened on cylinder head 11 by screw and screw hole 1.The characteristic requirements of cylinder mainly include following three aspect:
1, cylinder needs preferable sealing characteristics, prevents refrigerant from leaking；2, cylinder needs good heat dissipation performance, prevents air-breathing
Overheat is to reduce gettering efficiency；3, stomata needs preferable non-deformability, on temperature change (from -50 DEG C to a 120 DEG C left side
It is right), torque loadings, piston friction, thrust gas the effects of under, the deflection of cylinder-bore needs control in a certain range.For
The market mainstream developing trend of requirement and the energy conservation, Silent refrigerator of national energy-saving consumption reduction is adapted to, it is universal in refrigeration compressor art
Using following some improved methods: 1, in lift-off seal, the flatness of cylinder end face can be improved, or use iron-based pad
Piece；2, it in heat radiation performance, can be realized by increasing the cavity of inhaling silencer, or pass through optimization pouring technology
Carry out the uniformity of lifting cylinder internal density；3, in terms of resistance to deformation, screw torque can be suitably reduced, thickening cylinder can be increased
Head.The above measure, there are certain contradictions for some, and cylinder deformation can be reduced but be detrimental to close by such as reducing screw torque
Envelope；And some technical process are complex, such as optimize pouring technology and need lot of experiment validation (casting formula, pouring temperature, type
Chamber design etc.)；And some will increase more cost, such as use iron-based gasket.Under current compressor miniaturization trend,
Complex process, cost increase can become the larger resistance that product is introduced to the market.How by more simple, good operability,
Inexpensive measure come solve the problems, such as this become the project to study for a long period of time of this field one.
Summary of the invention
Technical problem to be solved by the present invention lies in propose it is a kind of can simultaneously lifting cylinder sealing characteristics, heat dissipation performance
And non-deformability, to promote the performance of compressor and the crankshaft for refrigeration compressor case of reliability.
In order to solve the above technical problems, a kind of crankshaft for refrigeration compressor case of the present invention includes cylinder head, cylinder face, cylinder
Hole, screw hole, gas vent and groove, the cylinder face are set to the front end of cylinder head, and the cylinder face is a flat surface, the cylinder
Hole, screw hole, gas vent are set on the cylinder face；The groove is set on the cylinder face and is distributed in the cylinder-bore
Around, the groove is not attached to lead to the cylinder-bore, gas vent, screw hole, the edge of the groove and the cylinder-bore, row
The shortest distance between stomata, screw hole is respectively 2~8mm.
A kind of above-mentioned crankshaft for refrigeration compressor case, the cylinder head are the geometry of rule, such as rectangle, trapezoidal；
It may be non-regular shape, as cross is petal.
A kind of above-mentioned crankshaft for refrigeration compressor case, the groove are distributed in the cylinder-bore and the screw hole and exhaust
Between hole, the width of the groove is 1~6mm, and the depth of the groove is 1~10mm.
A kind of above-mentioned crankshaft for refrigeration compressor case, the groove include the straight trough on top, the annular groove at middle part and lower part
Straight trough, the straight trough is connected to the annular groove respectively.
A kind of above-mentioned crankshaft for refrigeration compressor case, the straight trough on the top have three, respectively from the intermediate and left and right sides
It is connected into the annular groove at the middle part.
A kind of above-mentioned crankshaft for refrigeration compressor case, the groove further include the skewed slot for having on both sides of the middle, the skewed slot with
The annular groove is connected.
A kind of above-mentioned crankshaft for refrigeration compressor case, the groove include middle part annular groove and lower part straight trough, it is described
Straight trough is connected to the annular groove.
A kind of above-mentioned crankshaft for refrigeration compressor case, the groove use casting technique moulding by casting, or using machining
Equipment carries out following process.
The present invention is by adopting the above-described technical solution, the groove being arranged on cylinder face forms runner, from cylinder head top
The refrigeration oil of accumulation can flow downward from the top down and from two sides along groove, the heat quilt of cylinder head high-speed friction and compression
Refrigeration oil absorbs, and thus can promote gettering efficiency using heat exchange.Meanwhile after groove is arranged, the torque of four screws is given
The deformation of cylinder bring would not be transferred directly to cylinder axis, so as to be efficiently modified the deformation of cylinder-bore, reduce friction
Power consumption.And by designing special-shaped (non-regular shape) cylinder head engagement groove structure, torque can be brought plane deformation uniformly divide
It dissipates, lift-off seal characteristic, while also having both the characteristic of heat dissipation and resistance to deformation.To sum up, the present invention can simultaneously lifting cylinder sealing
Characteristic, heat dissipation performance and non-deformability, to improve the performance and reliability of compressor.It implements simply, easy to operate,
Improving cost is low, and combination is flexible, can be used for producing in enormous quantities.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of existing crankcase；
Fig. 2 is a kind of structural schematic diagram of embodiment of crankcase of the present invention；
Fig. 3 is the structural schematic diagram of second of embodiment of crankcase of the present invention；
Fig. 4 is the structural schematic diagram of the third embodiment of crankcase of the present invention；
Fig. 5 is the structural schematic diagram of 4th kind of embodiment of crankcase of the present invention.
Specific embodiment
As shown in Fig. 2, crankshaft for refrigeration compressor case includes cylinder head 11, cylinder face 2, cylinder-bore 4, screw hole 1, exhaust
Hole 3 and groove 5, cylinder head 11 are the geometry of rule, such as rectangle, trapezoidal.Cylinder face 2 is set to the front end of cylinder head 11,
Cylinder face 2 is a flat surface, and cylinder-bore 4, screw hole 1, gas vent 3 are set on cylinder face 2.Groove 5 is set on cylinder face 2 and divides
Cloth is around cylinder-bore 4, between cylinder-bore 4 and screw hole 1, gas vent 3, groove 5 and cylinder-bore 4, gas vent 3, spiral shell
Nail hole 1 is not attached to lead to, and the shortest distance between the edge and cylinder-bore 4 of groove 5, gas vent 5, screw hole 1 is respectively 2~8mm,
The width of groove 5 is 1~6mm, is 1~10mm lower than cylinder face depth (i.e. depth of groove).Groove 5 includes that three of top are straight
Slot 51,52,53, the straight trough 55 of the annular groove 54 at middle part and lower part, straight trough 51,52,53,55 are connected to annular groove 54 respectively, on
The straight trough 51,52,53 in portion is connected into the annular groove 54 at middle part from the intermediate and left and right sides respectively.The straight trough quantity on top and lower part
Straight trough quantity, which can according to need, to be increased and decreased, such as 1~3.When compressor operating, refrigeration oil from the straight trough 51 on top, 52,
53 flow downwardly into, further along middle part annular groove 54 to flow down, finally from the straight trough 55 of lower part flow out crankcase.The oil of refrigeration oil
Road is that continuously, the heat that stomata head generates can continually be taken away by heat exchange during the motion.Although four
Thursday screw hole 1 can cause cylinder entirety torsional deflection in drivescrew and when having certain torque, but by groove 5 by gas
This key area of cylinder face head is separated with surrounding, and cylinder axis will form a rotary table 6, and torque would not be passed directly
It passs, therefore deformation can be effectively reduced.
As shown in figure 3, groove 5 further includes the skewed slot 56 for having on both sides of the middle, two skewed slots 56 compared with the structure shown in Fig. 2
It is connected with annular groove 54, will can further increases the influx of refrigeration oil.
As shown in figure 4, in some special circumstances, such as recycling and requiring to system oil according to the matching feature of different refrigerators
When higher (minimum flow of control refrigeration oil), if refrigeration oil flows into the low on fuel that will cause system circulation in groove 5, this
When groove 5 in show the straight trough for setting top, eliminate the inflow of refrigeration oil, but one straight trough 55 is still set for oil leak in lower part.It should
Structure in heat exchange only with the heat exchange of internal gas and cylinder, though effect is not so good as Fig. 2, embodiment shown in Fig. 3,
It can be applied to some special types.Meanwhile by rotary table 6, equivalent effect is still played in terms of resistance to deformation.
As shown in figure 5, cylinder head 11 be cross it is petal (other polymorphic structures can also be used), at the top of recess 9
For arc structure, on cylinder face 2, the periphery of cylinder-bore 4 be equipped with toroidal cavity 54, rotary table 6 is formed on cylinder face 2.The knot
Structure can take into account cylinder facial plane degree, cylinder heat dissipation and cylinder deformation to greatest extent.When implementing, need to design matched
Air valve structure is applied in existing matured product.In addition to crankcase itself, matched components, which will also make design, to be improved,
It is relatively complicated.Relatively effective application is the product in design newly developed, is just designed and answers in early production sizing
With preferable effect can be obtained.
In crankcase structure of the present invention, the processing technology of groove 5 can use casting technique moulding by casting, can also use
Machining apparatus carries out following process.
Claims (8)
1. a kind of crankshaft for refrigeration compressor case, including cylinder head, cylinder face, cylinder-bore, screw hole and gas vent, the cylinder
Face is set to the front end of cylinder head, and the cylinder face is a flat surface, and the cylinder-bore, screw hole, gas vent are set to the cylinder
On face；It is characterized in that, it further includes groove, the groove is set on the cylinder face and is distributed in around the cylinder-bore,
The groove is not attached to lead to the cylinder-bore, gas vent, screw hole, the edge of the groove and the cylinder-bore, gas vent,
The shortest distance between screw hole is respectively 2~8mm.
2. a kind of crankshaft for refrigeration compressor case as described in claim 1, which is characterized in that the groove is distributed in the gas
Between cylinder holes and the screw hole and gas vent, the width of the groove is 1~6mm, and the depth of the groove is 1~10mm.
3. a kind of crankshaft for refrigeration compressor case as claimed in claim 1 or 2, which is characterized in that the groove includes top
Straight trough, the annular groove at middle part and the straight trough of lower part, the straight trough is connected to the annular groove respectively.
4. a kind of crankshaft for refrigeration compressor case as claimed in claim 3, which is characterized in that the straight trough on the top has three
Item is connected into the annular groove at the middle part from the intermediate and left and right sides respectively.
5. a kind of crankshaft for refrigeration compressor case as claimed in claim 3, which is characterized in that the groove further includes having middle part
The skewed slot of two sides, the skewed slot are connected with the annular groove.
6. a kind of crankshaft for refrigeration compressor case as claimed in claim 1 or 2, which is characterized in that the groove includes middle part
Annular groove and lower part straight trough, the straight trough is connected to the annular groove.
7. a kind of crankshaft for refrigeration compressor case as claimed in claim 1 or 2, which is characterized in that the cylinder head is cross
It is petal.
8. a kind of crankshaft for refrigeration compressor case as claimed in claim 1 or 2, which is characterized in that the groove is using casting
Technique moulding by casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260951.7A CN109356825A (en) | 2018-10-26 | 2018-10-26 | A kind of crankshaft for refrigeration compressor case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260951.7A CN109356825A (en) | 2018-10-26 | 2018-10-26 | A kind of crankshaft for refrigeration compressor case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109356825A true CN109356825A (en) | 2019-02-19 |
Family
ID=65346809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811260951.7A Pending CN109356825A (en) | 2018-10-26 | 2018-10-26 | A kind of crankshaft for refrigeration compressor case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846669A (en) * | 2021-01-08 | 2021-05-28 | 芜湖欧宝机电有限公司 | Method for machining cylinder block of compressor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000205136A (en) * | 1999-01-13 | 2000-07-25 | Matsushita Refrig Co Ltd | Hermetic electric compressor |
| CN101240786A (en) * | 2007-02-05 | 2008-08-13 | 周文三 | Air compressor binding structure improvement |
| CN103541885A (en) * | 2013-11-12 | 2014-01-29 | 华意压缩机股份有限公司 | Fixed-point cooling system of totally-enclosed compressor and using method thereof |
| CN105240246A (en) * | 2015-11-18 | 2016-01-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Air cylinder seat, compressor, refrigerating system and refrigerator |
| CN105257506A (en) * | 2015-10-22 | 2016-01-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Air cylinder seat and piston compressor |
| CN105587598A (en) * | 2014-11-10 | 2016-05-18 | Lg电子株式会社 | Reciprocating compressor |
| CN205578227U (en) * | 2016-04-23 | 2016-09-14 | 温岭市翊丰通用机械制造有限公司 | High strength supports transmission assembly and air compressor machine |
| CN108425833A (en) * | 2018-03-12 | 2018-08-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, piston compressor and heat-exchange system for piston compressor |
| CN209308922U (en) * | 2018-10-26 | 2019-08-27 | 加西贝拉压缩机有限公司 | A kind of crankshaft for refrigeration compressor case |
-
2018
- 2018-10-26 CN CN201811260951.7A patent/CN109356825A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000205136A (en) * | 1999-01-13 | 2000-07-25 | Matsushita Refrig Co Ltd | Hermetic electric compressor |
| CN101240786A (en) * | 2007-02-05 | 2008-08-13 | 周文三 | Air compressor binding structure improvement |
| CN103541885A (en) * | 2013-11-12 | 2014-01-29 | 华意压缩机股份有限公司 | Fixed-point cooling system of totally-enclosed compressor and using method thereof |
| CN105587598A (en) * | 2014-11-10 | 2016-05-18 | Lg电子株式会社 | Reciprocating compressor |
| CN105257506A (en) * | 2015-10-22 | 2016-01-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Air cylinder seat and piston compressor |
| CN105240246A (en) * | 2015-11-18 | 2016-01-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Air cylinder seat, compressor, refrigerating system and refrigerator |
| CN205578227U (en) * | 2016-04-23 | 2016-09-14 | 温岭市翊丰通用机械制造有限公司 | High strength supports transmission assembly and air compressor machine |
| CN108425833A (en) * | 2018-03-12 | 2018-08-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, piston compressor and heat-exchange system for piston compressor |
| CN209308922U (en) * | 2018-10-26 | 2019-08-27 | 加西贝拉压缩机有限公司 | A kind of crankshaft for refrigeration compressor case |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846669A (en) * | 2021-01-08 | 2021-05-28 | 芜湖欧宝机电有限公司 | Method for machining cylinder block of compressor |
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