CN202579196U - Compressor capable of reducing friction loss - Google Patents
Compressor capable of reducing friction loss Download PDFInfo
- Publication number
- CN202579196U CN202579196U CN 201220097487 CN201220097487U CN202579196U CN 202579196 U CN202579196 U CN 202579196U CN 201220097487 CN201220097487 CN 201220097487 CN 201220097487 U CN201220097487 U CN 201220097487U CN 202579196 U CN202579196 U CN 202579196U
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- compressor
- cooperates
- friction pair
- matched
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- Expired - Lifetime
Links
- 238000000576 coating method Methods 0.000 claims abstract description 24
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910001060 Gray iron Inorganic materials 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 23
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910001141 Ductile iron Inorganic materials 0.000 abstract 1
- 229910001018 Cast iron Inorganic materials 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a compressor for reducing friction loss, which is made of gray iron or ductile iron, the compressor crankshaft consists of a long shaft section matched with an upper flange, a short shaft section matched with a lower flange and an eccentric circle section matched with a roller, the outer circular surface of the eccentric circle section is matched with the roller, and the upper and lower end surfaces of the eccentric circle section are thrust surfaces matched with the large planes of the upper and lower flanges; one or both of a long shaft matching friction pair matched with the upper flange on the long shaft section, a round surface friction pair of the short shaft section, an excircle friction pair of the eccentric round section and a thrust surface friction pair on the upper end surface and the lower end surface are coated with tetrafluoroethylene coatings with low compression elastic modulus, low friction coefficient and high wear resistance.
Description
[technical field]
The utility model relates to compressor, relates in particular to a kind of compressor that reduces frictional loss.
[background technique]
Present rotary compressor bent axle; Generally adopt gray iron or magnesium iron to carry out phosphatization and handle obtaining higher wear resistance, but since rotary piston compressor specific structure and motion mode cause bent axle easily since around moving with upper and lower flange generation eccentric wear phenomenon.In the existing technology; To bent axle around the visibly moved eccentric wear that is prone to cause bent axle and upper and lower flange; Apply the thick manganese-series phosphorized layer of 0.002～0.003mm on the bent axle, though can improve the wear resistance of bent axle to a certain extent, the eccentric wear that bent axle is given birth to around movable property does not have too big effect basically.After the phosphating coat wearing and tearing; Friction factor between cast-iron crankshaft and cast iron flange or the powder metallurgy flange is bigger; Friction factor between manganese-series phosphorized layer and cast iron flange or the powder metallurgy flange is about 0.06～0.1; Expose cast iron body behind the bent axle eccentric wear, the friction factor between cast iron and the cast iron is 0.07～0.12, has increased the compressor power consumption and has also reduced reliability.
In addition; Some position possibly occur oil-poor lubricated during compressor start; Such as the cooperation place of upper flange and bent axle major axis, of short duration oil-poor lubricated during compressor start high temperature adhesive wear during with high temperature operation all is the subject matter that influences crankshaft wear and compressor working life.
[model utility content]
The utility model provides a kind of reduction compressor power consumption, improves compressor reliability, has the compressor that self-lubricating function reduces frictional loss.
In order to realize the goal of the invention of the utility model, the technological scheme of employing is:
A kind of compressor that reduces frictional loss; This compressor crank shaft is processed by gray iron or magnesium iron material; Compressor crank shaft is made up of the major axis section that cooperates with upper flange, the minor axis section that cooperates with lower flange and the eccentric circle section that cooperates with roller; The periphery of eccentric circle section cooperates with roller, and the upper and lower end face of eccentric circle section is the thrust surface that cooperates with the big plane of upper and lower flange; The major axis friction fit that major axis Duan Shangyu upper flange cooperates is secondary, one of which or both of every group of friction pair are coated with the tetrafluoroethylene coating of low compression Young's modulus, low coefficient of friction, high wear resistance in the thrust surface friction pair of the cylindrical friction pair of the disc friction pair of minor axis section, eccentric circle section and upper and lower end face.
The thickness of said tetrafluoroethylene coating is 0.01～0.05mm.
The beneficial effect of the utility model is:
1. improve bent axle around moving influence to the compressor crank shaft wearing and tearing; Tetrafluoroethylene with macromolecular structure is filmed owing to have less modulus of elasticity in comperssion (280MPa); The modulus of elasticity in comperssion of tetrafluoroethylene coating has only about 280MPa, with respect to the 150GPa of cast iron, has only 0.187% of cast iron; Slight deformation under the tetrafluoroethylene coating pressurized can be offset bent axle to a certain extent around moving adverse effect; Thereby reduce the wearing and tearing of bent axle and last lower flange, the flexible coating that the tetrafluoroethylene coating forms can effectively prevent the eccentric wear of bent axle around moving bent axle that causes and upper and lower flange bearing portion;
2. reduce the friction factor between bent axle and the corresponding friction pair of compressor pump part, the friction factor between tetrafluoroethylene coating and the cast iron is about about 0.05, and the bent axle of employing tetrafluoroethylene coating can reduce the frictional loss of the pump housing, thus the raising efficiency;
3. adopt the bent axle of tetrafluoroethylene coating; Because the tetrafluoroethylene coating has self-lubricating function and non-viscosity; Even under the high capacity of not having oil, have good wear-resisting property equally; And can between 250 ℃-280 ℃, use the oil-poor lubricated wearing and tearing that the cause when self-lubricating function of tetrafluoroethylene coating can effectively be avoided compressor start, the adhesive wear phenomenon when the not viscosity that the tetrafluoroethylene coating possesses can effectively be avoided the compressor high temperature operation continuously; Therefore reliability and the working life that can improve compressor, the oil-poor lubricated high temperature adhesive wear when turning round that reaches when eliminating compressor start.
[description of drawings]
Fig. 1 is the assembly structure schematic representation of the utility model bent axle and compressor pump part;
Fig. 2 is the sectional structure schematic representation of the utility model bent axle;
Fig. 3 is the A portion structure for amplifying schematic representation among Fig. 2.
[embodiment]
Extremely shown in Figure 3 like Fig. 1; A kind of compressor that reduces frictional loss; This compressor crank shaft is processed by gray iron or magnesium iron material; Compressor crank shaft 1 is made up of the major axis section 1a that cooperates with upper flange 2, the minor axis section 1b that cooperates with lower flange 3 and the eccentric circle section 1c that cooperates with roller 4, and the periphery 5 of eccentric circle section 1c cooperates with roller 4, and the upper and lower end face of eccentric circle section 1c is the thrust surface 6 that cooperates with the big plane of upper and lower flange (2,3); The one of which of every group of friction pair is coated with the tetrafluoroethylene coating of low compression Young's modulus, low coefficient of friction, high wear resistance in the cylindrical friction pair 5 of the major axis friction fit secondary 1a ' that major axis section 1a upward cooperates with upper flange, the disc friction pair 1b ' of minor axis section 1b, eccentric circle section 1c and the thrust surface friction pair 6 of upper and lower end face, and the thickness of tetrafluoroethylene coating is 0.01～0.05mm; In the practical implementation; Apply the tetrafluoroethylene coating on the major axis of employing major axis friction fit secondary 1a '; The minor axis section 1b periphery of disc friction pair 1b ' applies the tetrafluoroethylene coating; The eccentric circle section 1c periphery of cylindrical friction pair 5 applies the tetrafluoroethylene coating, is chosen in the thrust surface friction pair 6 on the thrust surface of the upper and lower end face of eccentric circle section 1c and applies the tetrafluoroethylene coating respectively.
A few galling part surfaces on compressor crank shaft apply the tetrafluoroethylene coating; Because the tetrafluoroethylene coating has extremely low friction factor and high wear resistance; Can reduce the compressor power consumption, improve compressor reliability; And because the self-lubricating function of tetrafluoroethylene coating can reduce the compressor frictional loss so that compressor runs well under oil-poor or few oil condition, thereby raising compressor Energy Efficiency Ratio and reliability.
The above embodiment just is the preferred embodiment of the utility model, is not the practical range that limits the utility model with this, and the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection domain of the utility model.
Claims (2)
1. compressor that reduces frictional loss; This compressor crank shaft is processed by gray iron or magnesium iron material; Compressor crank shaft is made up of the major axis section that cooperates with upper flange, the minor axis section that cooperates with lower flange and the eccentric circle section that cooperates with roller; The periphery of eccentric circle section cooperates with roller, and the upper and lower end face of eccentric circle section is the thrust surface that cooperates with the big plane of upper and lower flange; It is characterized in that:
The major axis friction fit that major axis Duan Shangyu upper flange cooperates is secondary, one of which or both of every group of friction pair are coated with the tetrafluoroethylene coating of low compression Young's modulus, low coefficient of friction, high wear resistance in the thrust surface friction pair of the cylindrical friction pair of the disc friction pair of minor axis section, eccentric circle section and upper and lower end face.
2. according to the said a kind of compressor crank shaft that reduces frictional loss of claim 1, it is characterized in that the thickness of said tetrafluoroethylene coating is 0.01～0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220097487 CN202579196U (en) | 2012-03-14 | 2012-03-14 | Compressor capable of reducing friction loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220097487 CN202579196U (en) | 2012-03-14 | 2012-03-14 | Compressor capable of reducing friction loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579196U true CN202579196U (en) | 2012-12-05 |
Family
ID=47248612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220097487 Expired - Lifetime CN202579196U (en) | 2012-03-14 | 2012-03-14 | Compressor capable of reducing friction loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579196U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989639A (en) * | 2015-07-17 | 2015-10-21 | 广东美芝制冷设备有限公司 | Compressor |
| CN105864046A (en) * | 2016-04-13 | 2016-08-17 | 广东美芝制冷设备有限公司 | Crankshaft for compressor and compressor with same |
| CN105927546A (en) * | 2016-07-08 | 2016-09-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor compressor and matching structure of crankshaft thrust surface and flange surface thereof |
| CN107435622A (en) * | 2017-09-30 | 2017-12-05 | 广东美芝制冷设备有限公司 | Compression mechanism, compressor and refrigeration plant |
| CN108278209A (en) * | 2018-04-26 | 2018-07-13 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration equipment with it |
| CN106438368B (en) * | 2016-11-07 | 2018-12-07 | 珠海格力电器股份有限公司 | rotating shaft, compressor and air conditioner |
| CN111810516A (en) * | 2020-06-30 | 2020-10-23 | 安徽美芝精密制造有限公司 | Pump body and compressor |
| CN113202765A (en) * | 2021-04-14 | 2021-08-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Friction pair assembly, crankshaft assembly and compressor |
-
2012
- 2012-03-14 CN CN 201220097487 patent/CN202579196U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989639A (en) * | 2015-07-17 | 2015-10-21 | 广东美芝制冷设备有限公司 | Compressor |
| CN105864046A (en) * | 2016-04-13 | 2016-08-17 | 广东美芝制冷设备有限公司 | Crankshaft for compressor and compressor with same |
| CN105864046B (en) * | 2016-04-13 | 2019-03-08 | 广东美芝制冷设备有限公司 | Crankshaft for compressor and the compressor with it |
| CN105927546A (en) * | 2016-07-08 | 2016-09-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor compressor and matching structure of crankshaft thrust surface and flange surface thereof |
| CN105927546B (en) * | 2016-07-08 | 2018-10-19 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of fit structure of rotor compressor and its crankshaft thrust face and flange face |
| CN106438368B (en) * | 2016-11-07 | 2018-12-07 | 珠海格力电器股份有限公司 | rotating shaft, compressor and air conditioner |
| CN107435622A (en) * | 2017-09-30 | 2017-12-05 | 广东美芝制冷设备有限公司 | Compression mechanism, compressor and refrigeration plant |
| CN108278209A (en) * | 2018-04-26 | 2018-07-13 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration equipment with it |
| CN108278209B (en) * | 2018-04-26 | 2023-11-03 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration equipment with same |
| CN111810516A (en) * | 2020-06-30 | 2020-10-23 | 安徽美芝精密制造有限公司 | Pump body and compressor |
| CN113202765A (en) * | 2021-04-14 | 2021-08-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Friction pair assembly, crankshaft assembly and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |