CN100443726C - Coolant compressor, air conditioner therewith, and refrigerator and parts thereof - Google Patents
Coolant compressor, air conditioner therewith, and refrigerator and parts thereof Download PDFInfo
- Publication number
- CN100443726C CN100443726C CNB011375310A CN01137531A CN100443726C CN 100443726 C CN100443726 C CN 100443726C CN B011375310 A CNB011375310 A CN B011375310A CN 01137531 A CN01137531 A CN 01137531A CN 100443726 C CN100443726 C CN 100443726C
- Authority
- CN
- China
- Prior art keywords
- bearing
- carbon
- coolant compressor
- based material
- alloy
- 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 - Lifetime
Links
- 239000002826 coolant Substances 0.000 title claims description 47
- 239000000956 alloy Substances 0.000 claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 23
- 239000010439 graphite Substances 0.000 claims abstract description 23
- 229910052718 tin Inorganic materials 0.000 claims abstract description 15
- 238000001704 evaporation Methods 0.000 claims abstract description 3
- 230000008020 evaporation Effects 0.000 claims abstract description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 72
- 239000010949 copper Substances 0.000 claims description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 238000005057 refrigeration Methods 0.000 claims description 20
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 14
- 239000011135 tin Substances 0.000 claims description 14
- 239000011701 zinc Substances 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 11
- 238000004378 air conditioning Methods 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- 238000006424 Flood reaction Methods 0.000 claims description 9
- 229910052709 silver Inorganic materials 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052720 vanadium Inorganic materials 0.000 claims description 7
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 79
- 229910052751 metal Inorganic materials 0.000 abstract description 32
- 239000002184 metal Substances 0.000 abstract description 32
- 239000003507 refrigerant Substances 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 45
- 239000000314 lubricant Substances 0.000 description 37
- 238000007598 dipping method Methods 0.000 description 25
- 229910000906 Bronze Inorganic materials 0.000 description 12
- 239000010974 bronze Substances 0.000 description 12
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 12
- 230000003068 static effect Effects 0.000 description 12
- 238000005461 lubrication Methods 0.000 description 11
- 238000009835 boiling Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 229910052745 lead Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000002788 crimping Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000912 Bell metal Inorganic materials 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910001245 Sb alloy Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910001361 White metal Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000010969 white metal Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/42—Pumps with cylinders or pistons
Abstract
The object of the invention is to provide a refrigerant compressor of long life using a bearing material having high abrasion resistance and seizure-resistance, and to provide an air conditioner and a refrigerator using the same, and its bearing. The invention relates to a bearing, a refrigerant compressor using the bearing, an air conditioner and a refrigerator using the refrigerant compressor in a refrigerant cycle system, in which a compressor compressing the refrigerant driven by a crank of a rotating shaft, and repeating the liquefaction and evaporation for refrigerating, at least one of bearings to the rotating shaft and the crank is made of a material prepared by impregnating pores of a carbonaceous base including graphite of 20-50 wt %, with one kind of metal selected from the IB, VIII excluding Fe, and Sn, or an alloy mainly composed of the metal.
Description
Technical field
The present invention relates to a kind of coolant compressor of novelty, the bearing of this coolant compressor is modified into has good abrasion resistance properties, the invention still further relates to a kind of air-conditioning and a kind of refrigerator, this air-conditioning and refrigerator have all utilized described coolant compressor and bearing thereof.
Background technique
Usually, for example make by cast iron, bronze and aluminum alloy material, resin material or resin-metal composite material by metallic material for the bearing of coolant compressor.Usually, relevant bronze material contains a large amount of Pb.Except compressor, the sliding material that great majority are used for other unit contains Pb usually.In order to prevent the slider interlock, the axle by the bearing supporting is carried out surface treatment.When the material that uses except cast iron, this bearing material with spool material different, to prevent their interlocks and wearing and tearing.
Japanese Patent Application Publication No.Hei 02-248676 and Hei 02-275114 disclose bearing material, and this bearing material comprises material with carbon element dipping, graphitiferous with Al.
In common compressor, when compressor performance was higher, the load of bearing was bigger.Therefore, this may be easy to make the lubricant film between bearing and the crankshaft to break, and then causes the local directly contact between bearing and the crankshaft.Directly contact is called boundary lubrication.When compressor starts is started maybe when the too much refrigeration agent of adding, also boundary lubrication will appear.Under this condition of boundary lubrication, common metal bearing, resin bearing and surface-treated axle will be easy to cause interlock and wearing and tearing.Proposed some and eliminated the method for bearing load, as increasing bearing bore diameter, increasing bearing length etc.But, these methods have narrow limitation, because in having the closed compression engine housing of motor, bearing space is limited.
Knownly contain Pb or the material of Sb is difficult to cause interlock and wearing and tearing with lubrication, this material is Pb bronze, Sb alloy and Pb/Sb-carbon composite for example, but Pb and Sb must handle, in order to avoid befouling environment human body and tellurian other biological being harmful to.These materials must be controlled by PRTR (to the discharging of the material of befouling environment and the registration of transfer) method.Although lead bronze, Sb alloy and Pb/Sb carbon composite are owing to their low melting point has improved when not having lubricant oil or the frictional behavior under harsh operating conditions, when being used for continuing to use under high temperature or the sliding condition in harshness, they also will wear and tear.
Above-mentioned Japanese Patent Application Publication does not illustrate that carbon-based material can flood with other metal except Al, and the porosity of carbon-based material of this dipping and the content of graphite in this carbon-based material are not described simultaneously yet.
Summary of the invention
Therefore, an object of the present invention is: provide a kind of and have higher reliability and than the coolant compressor of long life, the bearing of this coolant compressor is made by the material with very high wearability and very high anti-interlock, so that prevent to produce wearing and tearing and interlock when temporarily having supplying lubricating oil; A kind of air-conditioning and refrigerator that has adopted described coolant compressor is provided; And provide its bearing.
The present invention makes a kind of bearing with fabulous sliding properties by the following method: promptly add in the carbon-based material by the graphite with optimised quantity, even this material also is difficult to take place interlock under boundary lubrication condition, thereby reduce its friction factor, increase its wearability; Hole with this carbon-based material of metal pair floods, so that can form lubricant film at an easy rate in the above; And metal components, structure and the pickup of control except Pb and Sb, thereby reduce its friction factor, increase its wearability.Can obtain the coolant compressor of higher reliability thus.
The present invention can provide a kind of and have higher reliability and than the coolant compressor of long life, wherein:
The bearing of described compressor is made by carbon-based material, even this carbon-based material all has very little friction factor and good rub resistance when lacking lubricant oil or under the sliding condition of harshness;
Described carbon-based material floods with molten metal, this molten metal from IB family, remove VIII family and the Sn (Sn) of Fe (Fe) or mainly comprise the alloy of described metal and selecting, pass through existing hole discharge in the carbon-based material so that prevent lubricant oil, in alloy, at least a weight content is 1% or still less among Pb and the Sb, the shore hardness of described parts preferably 65 to 120.
According to the present invention, the shore hardness of described parts is 65 or highlyer then can has very little friction factor and minimum wearing and tearing when not having lubricant oil or under the operating conditions of harshness.This can make coolant compressor more reliable and the more long life arranged.For batch process, shore hardness preferably 90 or littler (because shore hardness be 90 or more senior general reduce the workability of material).In other words, when the shore hardness of material be 90 or more hour, the present invention can make the existing good wearability of coolant compressor, and good service behaviour is arranged again.
The content of Pb and Sb is preferred for 0.5% or littler in alloy, most preferably is 0%, but aborning, preferably with the material that meets JIS.
Even be in steady-working state and smooth when lubricated at coolant compressor, the present invention also can control the air pocket that reduces in the bearing material.In other words, by the carbon-based material that contains graphite being flooded with metal or alloy, be 0.05% to 2% so that make the volume ratio of the hole ratio of this carbon-based material, preferably 0.5% to 1.5%, bearing material of the present invention can form stable lubricant film, thereby suppresses fret wear.Especially preferably, this carbon-based material (volume ratio of hole ratio is 5% to 15%) will flood with metal, and like this, the volume ratio of the hole ratio of the carbon-based material behind this dipping can be 0.05% to 2%.
The invention is characterized in: at least one the bearing that is used for described running shaft and described crank is made by the substrate material that comprises carbon-based material, this carbon-based material contains the graphite of 20% to 50% weight, and with contain 1% or still less the Pb of weight or the metal or alloy of Sb flood so that be full of the hole of bearing material.
Specifically, the invention provides a kind of coolant compressor of cooling cycle system, its compression set that drives by the crank by running shaft repeats the compression of refrigeration agent, liquefaction and evaporation, it is characterized in that, at least one is used to support the bearing of described running shaft and described crank and is made by the parts that comprise carbon-based material, this carbon-based material comprises the graphite of 20-50 weight percentage, and the hole tin of this carbon-based material, copper, silver, in Cuprum alloy and the tin alloy any floods, described Cuprum alloy contains the copper of 80-90 weight percentage, the tin of 5-11 weight percentage, be no more than the zinc of 3 weight percentages, and the lead that is no more than 1.0 weight percentages, described tin alloy contains the copper of 0.5-5.0 weight percentage and is no more than the zinc of 3 weight percentages.
According to the present invention, with 0.2% or still less at least a among the V of weight (preferably 0.05% to 0.15% weight) and the Ti add to and be used for metal or alloy that carbon-based material is flooded, will increase the wettability of this carbon-based material, and reduce the hole ratio of bearing material lubricant oil.This makes lubricant film more stable, and can suppress the wearing and tearing of bearing material, thereby makes this coolant compressor more reliable.
Have very high lubrication property and very high wearability when guaranteeing compressor continuous running at high temperature, the fusing point that is used for metal or alloy that carbon-based material is flooded should be 900 ℃ or higher, preferably 900 ℃ to 1200 ℃,, be more preferably 950 ℃ to 1050 ℃ for Cu base alloy.
Although IB family comprises Cu, Ag and Au, VIII family comprises Co, Ni, Ru, Rh, Pd, Os and Pt, and the metal that is used for flooding is preferably selected arbitrarily from Cu, Ag, Co and Ni.And, the alloy that is used to flood is the Cu alloy preferably, this alloy contains 80% to 90% Cu, 5% to 11% Sn, 3% or Zn still less and 1.0% or Pb still less (weight ratio), perhaps described alloy is the Sn alloy preferably, and this Sn alloy contains 0.5% to 5.0% Cu and 3% or Zn still less (weight ratio).In alloy, Pb should be 1.0% or still less, and preferably 0.5% or still less.These metals are easy to flood, but are difficult to and carbon (C) chemical combination, and can make impregnated material that very high wearability and very high seizure resistance are arranged.
Usually, carbon-based material is porose, and lubricant oil will disperse by this hole.In order to prevent to disappear owing to these holes make lubricant film, with Cu this carbon-based material is flooded, Cu is to human body and environmentally friendly.But, the Cu of carbon-based material dipping is partly a bit soft, is easy to fusing, thus the interlock owing to rub.In order to prevent this fusing, interlock and formed wearing and tearing, add alloying element to this dipping part.Eliminate the friction factor (even when boundary lubrication condition) that this fusing and interlock can reduce this carbon-based material.By this impregnated material is used for bearing, the present invention can provide has the very coolant compressor of high reliability.
Graphite in carbon-based material can be by friction divides thinly and splits, and this has reduced the friction factor of carbon-based material.But, when carbon-based material contains a large amount of graphite, it self will become soft when high capacity, and begin distortion.This distortion had both increased friction, had increased the wearing and tearing of carbon-based material again.For fear of this situation, the content of graphite in the carbon-based material is 50% or still less (weight ratio), is more preferably 35% or still less (weight ratio).When the content of graphite in the carbon-based material during less than 20% (weight ratio), it is harder that carbon-based material becomes, and will make the metallic material wearing and tearing that match.Thus, the content of graphite in carbon-based material is 20% to 50% (weight ratio), and 20% to 35% (weight ratio) preferably is so that make bearing that lower friction factor and higher wearability be arranged.Like this, the present invention can provide reliability higher coolant compressor.
Not chloride refrigeration agent is easy to cause boundary lubrication, because chlorine has some effect to reducing friction.The present invention can provide a kind of coolant compressor, and this coolant compressor has adopted such bearing, even this bearing also can provide fully low friction and very high wearability when boundary lubrication.
The invention still further relates to a kind of air-conditioning and refrigerator, this air-conditioning and refrigerator have adopted described coolant compressor.
The present invention relates to a kind of bearing that is used for coolant compressor, it comprises parts, the columnar member of making by the carbon-based material that contains graphite preferably, the hole metal impregnation of this carbon-based material, this metal is from IB family, VIII family except that Fe and Sn or mainly comprise in the alloy of described metal selects, wherein, described carbon-based material comprises the graphite of 20% to 50% weight, the shore hardness of described parts is 65 to 120, porosity is 0.05% to 2% (volume ratio), described parts are made by metal or alloy, this alloy mainly comprises described metal, and have and reach as high as 0.2% weight, at least a element of from V and Ti, selecting.
Specifically, the present invention relates to a kind of bearing that is used for coolant compressor, it is characterized in that, make by the parts that comprise carbon-based material, this carbon-based material comprises the graphite of 20-50 weight percentage, and the hole tin of this carbon-based material, copper, silver, in Cuprum alloy and the tin alloy any floods, described Cuprum alloy contains the copper of 80-90 weight percentage, the tin of 5-11 weight percentage, be no more than the zinc of 3 weight percentages, and the lead that is no more than 1.0 weight percentages, described tin alloy contains the copper of 0.5-5.0 weight percentage and is no more than the zinc of 3 weight percentages.
The present invention relates to a kind of volute or frame that is used for coolant compressor, this volute or frame have slide recess part or through hole, and described bearing press fit is packed in this slide recess part or the through hole.
As mentioned above, by the material that employing has very high environmental resistance, the invention enables be difficult to the compressor supplying lubricating oil or stopping to prevent under the situation of supplying lubricating oil the bearing part interlock and the wearing and tearing of coolant compressor.This has significantly improved the working life of compressor.And even bearing material of the present invention also has lubrication when the supply of lubricant oil stops suddenly, thereby the utmost point has usefully improved the reliability of air-conditioning and refrigerator.And described bearing material has good workability, is suitable for producing in batches, and can reduces cost of production.
Description of drawings
Fig. 1 is the sectional view of scroll compressor, and this scroll compressor is a kind of coolant compressor.
Figure 2 shows that the shore hardness and the relation between the friction factor under the no oil condition of bearing material of the present invention.
Figure 3 shows that the shore hardness and the relation between the wear extent of static element under the no oil condition of bearing material of the present invention.
Figure 4 shows that bearing material of the present invention when lubricant oil is arranged shore hardness and the relation between the friction factor.
Figure 5 shows that the shore hardness of bearing material of the present invention and the relation between the wear extent, this is the load result of experiment.
Figure 6 shows that when in lubricant oil, testing the porosity of bearing material of the present invention and the relation between the friction factor.
Figure 7 shows that the relation between the friction factor of bearing material of the fusing point of impregnating metal and dipping.
Figure 8 shows that the relation between the content of graphite of no oil drag coefficient and carbon-based material.
Fig. 9 is the sectional view of the rotary compressor of one embodiment of the present of invention.
Embodiment
Fig. 1 is the sectional view of scroll compressor, and this scroll compressor is a kind of coolant compressor.To utilize this scroll compressor to describe the present invention in detail below.This scroll compressor comprises: a seal container 1; One compressing mechanism, this compressing mechanism is on the top of this container; One motor 9, this motor is in the bottom of this container; And a crankshaft 7, this crankshaft 7 interconnects compressing mechanism and motor.This compressing mechanism comprises: a static volute spare 5, and this static volute spare 5 has vertical spiral crimping 5b on base plate 5a; And one the rotation volute spare 4, this rotation volute spare has vertical spiral crimping 4b on base plate 4a.This static volute spare 5 and rotation volute spare 4 assemble in the mode that spiral crimping 4b and 5b cooperatively interact.This static volute spare 5 has at the inlet hole 5d of periphery with at the delivery outlet 5e of core.3 expression counterweights.
Euclidean (cross) coupling 8 as the rotation stop mechanism allows 4 rotations of rotation volute spare, and static volute spare 5 does not rotate simultaneously.This coupling 8 and the rear portion keyway 4d of rotation volute spare 4 and the bearing keyway engagement of frame 6.
When the motor 9 in the container bottom made crankshaft 7 rotations, the off-centre rotation of crankshaft 7a made rotation volute spare 4 rotate around static volute spare, and static volute spare 5 does not rotate simultaneously.By this operation, refrigerant gas sucks from inlet hole 5d, and is compressed, and discharges from delivery outlet 5e then.
Swivel bearing 4c is on base plate 4a, and bearing 6c is on frame 6.Lubricant oil is supplied with these bearings 4c and 6c in the circuit mode.When compressor start or when the delivery pressure of refrigerant gas is higher, the supply of lubricant oil is insufficient, and bearing may damage owing to wearing and tearing and interlock.
But, cylindricality bearing of the present invention respectively press fit pack in the recess of base plate 4a and the siphunculus (through tube) of frame 6 in and fixing.This has increased the reliability and the life-span of scroll compressor.In the body of Bearing Installation of the present invention on base plate 4a and frame 6.They are made by cast iron or the acieral of the Si that comprises 5% to 15% weight respectively.
A kind of method of making bearing of the present invention may further comprise the steps: the cylindricality carbon-based material of predetermined length is immersed in the crucible that metal or alloy is housed so that flood, it is heated to temperature above 100 ℃ of the fusing points of this metal or alloy in vacuum furnace; Add nitrogen so that compress and flood, the cylindricality carbon-based material behind this dipping is cut into cylindricality.
The Shore hardnes figure of the table 1 expression comparison example and the embodiment of the invention.Fig. 2 represents the shore hardness of bearing material (carbon-based material of carbon-based material and metal impregnation) of the present invention and comparison example and the relation between the friction factor when no oil condition.Triangular marker in Fig. 2 is represented comparison example, and especially, the black triangle mark represents only to comprise the comparison example of carbon-based material.Circular mark is represented embodiments of the invention.Equal for given number on the mark in table 1 listed number.In order to estimate the friction factor of the bearing material that is used for coolant compressor, we do not comprise the refrigeration agent of chlorine with the R410A conduct.Obviously, under no oil condition, when the Shore hardnes figure of bearing material increased, their friction factor reduced.Bronze (BC3) comprises 10% Sn, 2% Zn, and 0.2% Pb, all the other are Cu (weight ratio).The 5th kind of white metal (WJ5) comprises 2% Cu, 29% Zn, and all the other are Su (weight ratio).As shown in Figure 2, when shore hardness is 65 or bigger, preferably 80 or when bigger, the bearing material of impregnated bronze has less friction factor.Equally, the bearing material of dipping WJ5 has less friction factor, and this trend can be found out in the friction factor evaluation in the hydrocarbon coolant gas.
(table 1)
The porosity of carbon-based material before dipping (% of weight) is: comparison example 5 is 11%, and comparison example 6 is 10.4%, and embodiment 1-3 is 6%, and embodiment 4 to 7 is 11%.The porosity of the carbon-based material behind the dipping (% of weight) is: embodiment 1 is 1.3%, and embodiment 2 is 1.5%, and embodiment 3 is 0.7%.Content of graphite in carbon-based material (% of weight) is: embodiment 1 to 3 is 35%, and embodiment 4 to 7 is 42%.Embodiment 8 to 10 before dipping with the dipping after porosity and the content of graphite in carbon-based material identical with embodiment 1 to 7.The shore hardness of the untreated bearing material of example depends on the content of porosity and graphite, pitch, tar etc. as a comparison.Content of graphite in untreated bearing material is some variation a little also.The porosity of material is 6% to 11%, with reference to figure 6.When porosity increased, the shore hardness of bearing material diminished.The content of V and Ti is respectively 0.1% in alloy.
Fig. 3 has represented shore hardness and the relation between the wear extent of static element under the no oil condition.This wear test may further comprise the steps: in the pressurized gas abrasion tester, with carbon-based material spare (10mm * 10mm * 36mm) as static element, with the structural steel elements SCM415 of carburizing and quenching as movable part; In selected refrigerant gas, SCM416 spare was slided 10 hours on static element with the surface pressure of 9.8MPa and the Sliding velocity of 1.2m/s; And the amount of measuring lost material.Can find that when bearing material was harder, wear extent reduced.With reference to figure 3, when the shore hardness of bearing material is 65 or bigger, preferably 80 or when bigger, the wear extent of material is very little.
Fig. 4 represents shore hardness and the relation between the friction factor of bearing material when lubricant oil is arranged.When shore hardness is 65 or bigger, preferably 80 or when bigger, the friction factor of bearing material is very little.Embodiment 1 friction factor minimum when lubricant oil is arranged with bronze (BC3) dipping.
The comparison example 2,3 and 4 of metal impregnation of no use has very high friction factor (0.1 or bigger), although their Shore hardnes figure is 65 or bigger.This is a porous because of carbon-based material, and lubricant oil can disperse by this hole, and lubricant film may have local losses.This is not preferred for (Mixed lubrication).
As for comparison example 6, the friction factor of this example 6 is very low, but its impregnating metal comprises Pb, and Pb is environmentally harmful.Therefore, embodiments of the invention 1,2 and 4 to 10 dipping bearing material are preferred (its Shore hardnes figure are 65-110), because their friction factor is 0.1 or littler.
Fig. 5 represents the relation between the wear extent of shore hardness and bearing material, and this is to be that 1.2m/s and speed under load are the result who carries out wear test under the condition of 0.15MPa/s (up to 100MPa) in oil mixture (R140A refrigeration agent and artificial oil) in Sliding velocity.By bronze (BC3) dipping, shore hardness is 65 or bigger, preferably 80 or the wear extent of bigger carbon-based material very little.The wear extent minimum of embodiment 1 in lubricant oil by bronze (BC3) dipping.Therefore, we can find that the material with higher Shore hardnes figure is more suitable for as bearing material.The bearing material that the bearing material that floods with the WJ5-Sn alloy floods inferior to usefulness bronze (BC3) slightly.
Fig. 6 represented porosity and the friction factor of the impregnated material under harsh conditions, in lubricant oil, tested between relation.We use artificial oil with flon refrigeration agent R410A equivalence as lubricant oil, and porosity measurement instrument 2000 (making (being distributed by AMCO) by FISONS) is as experimental facilities, and obtain the distribution of pores curve.We " accumulate void content * piece density * 100% " by representation and are come the porosity of calculation bearing material by the distribution of pores curve.When porosity diminished, bearing material can increase the oil film confining force, and friction factor is less when lubricant oil is arranged.Have than only with the littler porosity of the embodiment 4 of bronze dipping with the embodiment 6 and 7 of the bell metal dipping that contains V or Ti.This is that the VC of generation and TiC have increased the wellability of carbon-based material because V and Ti difference carburet when carbon-based material floods forms VC and TiC.This has increased the oil film confining force of carbon-based material, and friction factor is very little when lubricant oil is arranged.By with scanning electron microscope the surface with the carbon-based material of the bell metal dipping that contains V or Ti being scanned, we can observe carbide particulate (VC or TiC) on the interface between carbon-based material and the alloy.
With reference to figure 7, we estimate the relation of bearing material between the friction factor under the no oil condition at the fusing point and the dipping of impregnating metal, and this no oil condition is the harshest sliding condition.The Shore hardnes figure of the untreated carbon-based material of numeric representation in the chart.No matter the hardness of carbon-based material before dipping how, this carbon-based material has identical trend according to the kind of impregnated material on the friction factor characteristic.With reference to figure 7, we can find that the Sb of boiling point lower (200 ℃ to 400 ℃) and Pb are influential to the friction factor that reduces impregnated material.But, when the elevation of boiling point of the impregnated material resemble Sb, the friction factor of impregnated material increases.When the boiling point that resembles the such impregnated material of Cu (Cu) or Cu alloy is 900 ℃ or when higher, the friction factor of impregnated material is approximately the same high with the friction factor of low boiling material.
The present invention as the higher boiling material, still also can adopt other higher boiling material with Cu, so that improve the friction factor of abrasion resistance and carbon-based material, as long as this higher boiling material can flood.The present embodiment employing is immersed carbon-based material in the pool of molten metal and is pressurizeed simultaneously so that the method for dipping.In the method, make the fusing point of impregnated material reduce as far as possible and can effectively boost productivity.For this reason, we have lower boiling bearing material by having prepared with Cu alloy dipping, Sn are added in this Cu alloy, so that reduce boiling point.Flood with alloy and to be easy to make impregnating metal stronger, thereby increase the hardness of the bearing material of dipping, and, be more preferably, when adding the element that is used for improving cutting power to impregnating metal, can make the cutting surface (or slidingsurface) of bearing material more smooth.This makes bearing part more reliable.
Fig. 8 has represented at no oil drag coefficient and has been rich in graphite and is using the relation between the Pb content in bronze (BC3) or the impregnated carbon-based material of Cu.Sample 1 among Fig. 8 is embodiment 1, and the sample that does not have label is other sample.As shown in Figure 8, when the weight content of the graphite in the carbon-based material is 20% to 50%, especially 20% to 40% o'clock, the no oil drag coefficient minimum of carbon-based material.
We use by the disclosed made bearing of the present invention of the foregoing description, and this bearing are used for the swivel bearing 4c and the static bearing 6c of the scroll compressor of Fig. 1.We use R410A as refrigeration agent.Can be equal to or higher than in the wearability of this coolant compressor and working life common, with the wearability and working life of the carbon composite of Pb or Sb dipping.
(embodiment 11)
Fig. 9 is a kind of sectional view that is used as the rotary compressor of coolant compressor.This rotary compressor will and be used for crank pin bearing according to the bearing 6c of the siphunculus embodiment of the invention 1 to 10, be used to support crankshaft 7 and frame 6 with the carbon-based material of metal impregnation.These bearings such as above-mentioned method manufacturing and formation.In order to assess, we are loaded on this rotary compressor in the air-conditioning, and heat with this air-conditioning in the pattern in winter, and in this pattern, refrigeration agent accumulates in the compressor in winter, and the concentration of lubricant oil reduces.Even under these harsh conditions, interlock can not take place in bearing yet, can be owing to interlock does not quit work, and can not reduce owing to wearing and tearing do not make performance.This rotary compressor comprises blade (dividing plate) 10, piston (rotor) 11 and cylinder 12.
And we are used for reciprocatable refrigerating agent compressor with bearing material of the present invention, and we find, even lubricant oil is approximately under 1/4th the situation of normal lubricants capacity in cooling cycle system, this compressor also can proper functioning.Therefore, bearing material of the present invention has increased the reliability of this reciprocatable refrigerating agent compressor when normal the use.
In cooling cycle system gas, refrigeration agent will be partly dissolved in the lubricant oil.The amount that is dissolved into the refrigeration agent in the lubricant oil depends on the mixability of refrigeration agent and lubricant oil, but the amount of the refrigeration agent that is dissolved when pressure improves usually increases.When more refrigeration agent is dissolved in the lubricant oil, the reduced viscosity of lubricant oil.Therefore, under the highpressure state, it is more serious that friction slip will become.The lubricant oil of supplying with the slide member (especially bearing) in the coolant compressor remains in the coolant compressor, and flows into and flow out this slide member by various paths.As for hydrocarbon coolant, the amount of the refrigeration agent in being dissolved into lubricant oil increases or the amount that contains the lubricant oil of refrigeration agent when increasing, and the amount that charges into the refrigeration agent in the cooling cycle system increases.This is more dangerous when refrigeration agent is flammable.
Bearing material of the present invention can be widely used in since refrigeration agent in lubricant oil solubility and the various coolant compressors of under harsh conditions, working.
Claims (12)
1. the coolant compressor of a cooling cycle system, its compression set that drives by the crank by running shaft repeats the compression of refrigeration agent, liquefaction and evaporation, it is characterized in that, at least one is used to support the bearing of described running shaft and described crank and is made by the parts that comprise carbon-based material, this carbon-based material comprises the graphite of 20-50 weight percentage, and the hole tin of this carbon-based material, copper, silver, in Cuprum alloy and the tin alloy any floods, described Cuprum alloy contains the copper of 80-90 weight percentage, the tin of 5-11 weight percentage, be no more than the zinc of 3 weight percentages, and the lead that is no more than 1.0 weight percentages, described tin alloy contains the copper of 0.5-5.0 weight percentage and is no more than the zinc of 3 weight percentages.
2. coolant compressor according to claim 1 is characterized in that, the shore hardness of described parts is 65 to 120.
3. coolant compressor according to claim 1 and 2 is characterized in that, the volume ratio of the porosity of described parts is 0.05% to 2%.
4. coolant compressor according to claim 1 and 2 is characterized in that, any in described tin, copper, silver, Cuprum alloy and the tin alloy comprises at least a in 0.2 weight percentage or littler vanadium and the titanium.
5. coolant compressor according to claim 1 and 2 is characterized in that, any in described tin, copper, silver, Cuprum alloy and the tin alloy comprise weight percentage be 1 or lead still less and antimony at least a.
6. coolant compressor according to claim 1 and 2 is characterized in that described refrigeration agent does not comprise chlorine.
7. an air-conditioning is characterized in that, adopts each described coolant compressor in the claim 1 to 6.
8. a refrigerator is characterized in that, adopts each described coolant compressor in the claim 1 to 6.
9. bearing that is used for coolant compressor, it is characterized in that, make by the parts that comprise carbon-based material, this carbon-based material comprises the graphite of 20-50 weight percentage, and the hole of this carbon-based material floods with in tin, copper, silver, Cuprum alloy and the tin alloy any, described Cuprum alloy contain copper, the 5-11 weight percentage of 80-90 weight percentage tin, be no more than the zinc of 3 weight percentages, and the lead that is no more than 1.0 weight percentages, described tin alloy contains the copper of 0.5-5.0 weight percentage and is no more than the zinc of 3 weight percentages.
10. the bearing that is used for coolant compressor according to claim 9 is characterized in that, the SH of described parts is 65 to 120.
11., it is characterized in that the volume ratio of the porosity of described parts is 0.05% to 2% according to claim 9 or the 10 described bearings that are used for coolant compressor.
12., it is characterized in that any in described tin, copper, silver, Cuprum alloy and the tin alloy comprises at least a in 0.2 weight percentage or littler vanadium and the titanium according to claim 9 or the 10 described bearings that are used for coolant compressor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP328663/2000 | 2000-10-27 | ||
| JP2000328663 | 2000-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1351229A CN1351229A (en) | 2002-05-29 |
| CN100443726C true CN100443726C (en) | 2008-12-17 |
Family
ID=18805489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011375310A Expired - Lifetime CN100443726C (en) | 2000-10-27 | 2001-10-26 | Coolant compressor, air conditioner therewith, and refrigerator and parts thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100435998B1 (en) |
| CN (1) | CN100443726C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4395159B2 (en) * | 2006-11-24 | 2010-01-06 | 日立アプライアンス株式会社 | Refrigeration equipment |
| JP5993559B2 (en) * | 2011-10-05 | 2016-09-14 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Hermetic refrigerant compressor and bearing member used therefor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2219133A1 (en) * | 1973-02-23 | 1974-09-20 | Onera (Off Nat Aerospatiale) | Metal impregnated porous bodies - using metals forming low m. pt. alloy, to improve uniformity of structure |
| DE3240709A1 (en) * | 1982-11-04 | 1984-05-10 | Ringsdorff-Werke GmbH, 5300 Bonn | Impregnated carbon body |
| US5495979A (en) * | 1994-06-01 | 1996-03-05 | Surmet Corporation | Metal-bonded, carbon fiber-reinforced composites |
| CN1145986A (en) * | 1995-08-03 | 1997-03-26 | 松下电器产业株式会社 | Pivot thrust bearing system |
| DE19642506C1 (en) * | 1996-10-15 | 1997-10-23 | Sibco Gmbh | Wear and heat resistant carbon or carbide product |
| US5690997A (en) * | 1993-10-04 | 1997-11-25 | Sioux Manufacturing Corporation | Catalytic carbon--carbon deposition process |
| US5834115A (en) * | 1995-05-02 | 1998-11-10 | Technical Research Associates, Inc. | Metal and carbonaceous materials composites |
| JP2000203973A (en) * | 1998-11-11 | 2000-07-25 | Sentan Zairyo:Kk | Carbon-base metal composite material and its production |
-
2001
- 2001-10-26 CN CNB011375310A patent/CN100443726C/en not_active Expired - Lifetime
- 2001-10-27 KR KR10-2001-0066521A patent/KR100435998B1/en active IP Right Grant
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2219133A1 (en) * | 1973-02-23 | 1974-09-20 | Onera (Off Nat Aerospatiale) | Metal impregnated porous bodies - using metals forming low m. pt. alloy, to improve uniformity of structure |
| DE3240709A1 (en) * | 1982-11-04 | 1984-05-10 | Ringsdorff-Werke GmbH, 5300 Bonn | Impregnated carbon body |
| US5690997A (en) * | 1993-10-04 | 1997-11-25 | Sioux Manufacturing Corporation | Catalytic carbon--carbon deposition process |
| US5495979A (en) * | 1994-06-01 | 1996-03-05 | Surmet Corporation | Metal-bonded, carbon fiber-reinforced composites |
| US5834115A (en) * | 1995-05-02 | 1998-11-10 | Technical Research Associates, Inc. | Metal and carbonaceous materials composites |
| CN1145986A (en) * | 1995-08-03 | 1997-03-26 | 松下电器产业株式会社 | Pivot thrust bearing system |
| DE19642506C1 (en) * | 1996-10-15 | 1997-10-23 | Sibco Gmbh | Wear and heat resistant carbon or carbide product |
| JP2000203973A (en) * | 1998-11-11 | 2000-07-25 | Sentan Zairyo:Kk | Carbon-base metal composite material and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100435998B1 (en) | 2004-06-12 |
| KR20020033082A (en) | 2002-05-04 |
| CN1351229A (en) | 2002-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100685330B1 (en) | Bearings for co2 refrigerant compressor use, compressor using the same, and applications of the same | |
| KR101222882B1 (en) | Sintered sliding material, sliding member, connection device and device provided with sliding member | |
| CN101165346B (en) | Refrigerant compressor | |
| KR20080047281A (en) | Refrigeration unit | |
| US5256494A (en) | Sliding member with a sintered copper alloy layer | |
| US4307998A (en) | Swash-plate-type compressor for air-conditioning vehicles | |
| CN100443726C (en) | Coolant compressor, air conditioner therewith, and refrigerator and parts thereof | |
| JP2002213356A (en) | Refrigerant compressor, air conditioner and refrigerator using the same, and its bearing | |
| JP2010084551A (en) | Refrigerant compressor | |
| JP4416816B2 (en) | Refrigerant compressor | |
| EP1983195B1 (en) | Ductile cast iron scroll compressor | |
| US8096793B2 (en) | Ductile cast iron scroll compressor | |
| JPS6213784A (en) | Heat pump type room air conditioner | |
| JP6756995B1 (en) | Copper-based sintered alloy and its manufacturing method | |
| JPH06229476A (en) | Sliding device, fluid device, compressor, and its manufacture | |
| JPH07301189A (en) | Rotary type compressor | |
| JPH0820836A (en) | Sintered oilless bearing and its production | |
| JP2008267281A (en) | Scroll compressor made of nodular cast iron | |
| JPS6131682A (en) | Slipper for swash plate type compressor | |
| KR20080094340A (en) | Ductile cast iron scroll compressor | |
| JPH07173509A (en) | Wear resistant material, production thereof and compressor using the same material | |
| JP2012237211A (en) | Scroll compressor | |
| JPS6118024B2 (en) | ||
| JPH06192710A (en) | Sliding member for compressor and its production | |
| JPH07301188A (en) | Compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: HITACHI AIR CONDITIONING HOME APPLIANCES CO., LTD Free format text: FORMER OWNER: HITACHI CO., LTD.; APPLICANT Effective date: 20070525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20070525 Address after: Tokyo, Japan Applicant after: Hitachi Appliances Inc. Co-applicant after: Toyo Tanso Co., Ltd. Address before: Tokyo, Japan Applicant before: Hitachi Ltd. Co-applicant before: Toyo Tanso Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170802 Address after: Hongkong aoteng Plaza No. 8 Linze street, Kowloon Bay China 12 floor Co-patentee after: Toyo Tanso Co., Ltd. Patentee after: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. Address before: Tokyo, Japan Co-patentee before: Toyo Tanso Co., Ltd. Patentee before: Hitachi Appliances Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180712 Address after: Tokyo, Japan, Japan Co-patentee after: Toyo Tanso Co., Ltd. Patentee after: Hitachi Johnson Controls Air Conditioning Co., Ltd. Address before: Hongkong aoteng Plaza No. 8 Linze street, Kowloon Bay China 12 floor Co-patentee before: Toyo Tanso Co., Ltd. Patentee before: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081217 |