CN105604933A - Scroll compressor and air conditioner - Google Patents
Scroll compressor and air conditioner Download PDFInfo
- Publication number
- CN105604933A CN105604933A CN201410610141.5A CN201410610141A CN105604933A CN 105604933 A CN105604933 A CN 105604933A CN 201410610141 A CN201410610141 A CN 201410610141A CN 105604933 A CN105604933 A CN 105604933A
- Authority
- CN
- China
- Prior art keywords
- sliding bearing
- ceramic
- wear
- bearing
- bent axle
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 82
- 239000002131 composite material Substances 0.000 claims abstract description 57
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 33
- 238000000576 coating method Methods 0.000 claims description 51
- 239000011248 coating agent Substances 0.000 claims description 50
- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 claims description 33
- 239000011159 matrix material Substances 0.000 claims description 13
- 150000004767 nitrides Chemical class 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 7
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 6
- 239000011224 oxide ceramic Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000002905 metal composite material Substances 0.000 claims 2
- 230000003068 static effect Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000003642 hunger Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000037351 starvation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- -1 Polytetrafluoroethylene Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000011195 cermet Substances 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241001184547 Agrostis capillaris Species 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000239290 Araneae Species 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000002274 Matrix Metalloproteinases Human genes 0.000 description 1
- 108010000684 Matrix Metalloproteinases Proteins 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- UAJUXJSXCLUTNU-UHFFFAOYSA-N pranlukast Chemical compound C=1C=C(OCCCCC=2C=CC=CC=2)C=CC=1C(=O)NC(C=1)=CC=C(C(C=2)=O)C=1OC=2C=1N=NNN=1 UAJUXJSXCLUTNU-UHFFFAOYSA-N 0.000 description 1
- 229960004583 pranlukast Drugs 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention provides a scroll compressor, which comprises a housing, a static scroll tray, a dynamic scroll tray, a crankshaft and a rack, wherein the static scroll tray, the dynamic scroll tray, the crankshaft and the rack are positioned inside the housing, the dynamic scroll tray is connected to the crankshaft through a first sliding bearing, the first sliding bearing is fixed on the dynamic scroll tray, the first sliding bearing and the top portion of the crankshaft form a pair of friction pair, the rack is further provided with a second sliding bearing, the crankshaft is fixed on the rack through the second sliding bearing, and at least one member selected from the crankshaft, the first sliding bearing and the second sliding bearing comprises a ceramic material or a ceramic-based composite material. The invention further relates to an air conditioner. According to the present invention, at least one member selected from the crankshaft, the first sliding bearing and the second sliding bearing comprises the ceramic material or ceramic-based composite material, such that wear resistance of the crankshaft and the sliding bearing are improved, high-temperature resistance of the crankshaft and the sliding bearing are improved, and the easy wear problem of the crankshaft and the sliding bearing is solved.
Description
Technical field
The present invention relates to refrigerating field, relate in particular to a kind of screw compressor and air-conditioner.
Background technology
Screw compressor is a kind of novel positive displacement compressor, because it is simple in structure, volume is little, quality is light,Noise is low, mechanical efficiency is high and the feature such as smooth running, is widely used in air-conditioning and refrigeration unit. OneAs, screw compressor mainly contains orbiter (movable orbiting scroll), quiet vortex dish (quiet whirlpool dish), anti-rotationThe composition such as mechanism, frame, it is to rely on by the intermeshing cycle that forms enclosed volume of scroll wrap to change and realizeSuction, compression and the exhaust of gas. Gas enters suction muffler by the outside of dynamic and static scroll plate, compression processEcto-entad carries out gradually, is finally discharged by the steam vent of fixed scroll.
Due to this body structure of screw compressor, there is more friction pair the inside of compressor, such as songAxle and orbiter bearing friction face, bent axle and rack bearing rubbing surface, the sound vortex flank field of conjugate action, movingThe static vortex tooth top field of conjugate action etc. If abrasion is serious between parts, frictional work consumption increases input powerGreatly, compressor efficiency reduces, and also will affect other performances of compressor.
In common screw compressor, bent axle is generally to adopt 45# steel through processing, heat treated part, shouldPart ubiquity hardness is poor, machining accuracy is not high, easy to wear, the shortcoming of poor reliability. Scroll compressionThe general sliding bearing that adopts composite in motor-driven scroll plate bearing block or housing bearing seat, it and moving vortexDish or upper spider seat hole interference fit. The sliding bearing of composite is made up of matrix, transition zone and coating.Matrix is taking steel as main; Transition zone is Allen's metal, is formed by bronze powder sintering, has played fixingThe effect of (Polytetrafluoroethylene is called for short PTFE, polytetrafluoroethylene (PTFE)); Surface is one deckThe mixture of PTFE, claims again coating. This composite material sliding bearing has high temperature resistant and self-lubricating property. IfCompressor exists refrigeration system to lack fluorine, oil starvation, overload, returns the problems such as liquid, bent axle and compositeSliding bearing easily occurs that wearing and tearing cause the situation of compressor damage. Such as, lacking under oil condition bent axleAt high temperature linear expansion coefficient is larger for corresponding friction pair, causes bent axle and bearing clearance to diminish, thereby dislikesChange the environment for use of bearing.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of screw compressor and air-conditioner,At least one member in bent axle, the first sliding bearing and second sliding bearing of screw compressor comprises potteryMaterial or ceramic matric composite, improved the wearability of bent axle and sliding bearing, improved bent axle and slipThe heat-resisting quantity of bearing, solves bent axle and bearing problem easy to wear, improves the mechanical efficiency of screw compressor.For achieving the above object, technical scheme of the present invention is as follows:
A kind of screw compressor, comprises housing, be positioned at described housing quiet whirlpool dish, movable orbiting scroll, bent axle andFrame, described movable orbiting scroll connects described bent axle by the first sliding bearing, and described the first sliding bearing is fixed onOn movable orbiting scroll and with the top of described bent axle, form friction pair, in described frame, be also provided with the second slipBearing, described bent axle is fixed in described frame by described the second sliding bearing; Described bent axle, describedAt least one member in one sliding bearing and described the second sliding bearing comprise ceramic material or ceramic base compoundMaterial.
Therein in an embodiment, described bent axle comprises to be made up of ceramic material or ceramic matric compositeWear-resistant coating, described wear-resistant coating is placed in sliding with described the first sliding bearing, described second of described bent axleThe mating surface place of bearing.
In an embodiment, the thickness of described wear-resistant coating is 0.1mm-2.5mm therein.
In an embodiment, described wear-resistant coating is oxide ceramic layer, carbide ceramics layer or nitrogen thereinCompound ceramic layer.
In an embodiment, the described wear-resistant coating that ceramic matric composite is made is pottery and metal thereinThe wear-resistant coating that compounded wear-resistant coating or pottery and Ceramic Composite are made.
Therein in an embodiment, the main body of described bent axle is as matrix, the combination bag of described wear-resistant coatingDraw together combination between described wear-resistant coating and described matrix and the combination of described wear-resistant coating inside, described wear-resistingCoating metallurgical binding is at described matrix.
In an embodiment, described the first sliding bearing and described the second sliding bearing are employing thereinThe sliding bearing that PTFE composite is made.
In an embodiment, described the first sliding bearing and described the second sliding bearing are and adopt pottery thereinThe sliding bearing that ceramic material or ceramic matric composite are made.
In an embodiment, the described sliding bearing that ceramic matric composite is made is pottery and metal thereinCompounded sliding bearing, or the described sliding bearing that ceramic matric composite is made is pottery and potteryCompounded sliding bearing.
Therein in an embodiment, the described sliding bearing that ceramic matric composite is made be oxide ceramics,The sliding bearing that carbide ceramics or nitride ceramics are made.
In an embodiment, described the first sliding bearing is embedded in the bearing saddle bore of described movable orbiting scroll therein,Described the first sliding bearing and described movable orbiting scroll form ceramic slide bearing Moving plate, described the first sliding bearing withDescribed movable orbiting scroll interference fit; Described the second sliding bearing is embedded in described frame, described the second sliding axleHold with described frame and form ceramic slide bearing frame, described the second sliding bearing and described frame interference fit.
Therein in an embodiment, described movable orbiting scroll for holding the bearing of described the first sliding bearingSeat hole inwall is provided with the wear-resistant coating of being made up of ceramic material or ceramic matric composite, described frame withDescribed the second sliding bearing mating surface is also provided with the wear-resisting painting of being made up of ceramic material or ceramic matric compositeLayer.
Also relate to a kind of air-conditioner, comprise the described screw compressor of above-mentioned arbitrary technical scheme.
The invention has the beneficial effects as follows:
Screw compressor of the present invention and air-conditioner, the bent axle of screw compressor, the first sliding bearing and secondAt least one member in sliding bearing comprises ceramic material or ceramic matric composite, has improved bent axle and cunningThe wearability of dynamic bearing, has improved the heat-resisting quantity of bent axle and sliding bearing, solves bent axle and bearing easy to wearProblem, improve the mechanical efficiency of screw compressor, improved the reliability of screw compressor in various operating modes,Processing cost is low, easy to assembly. To the optimization of bent axle and sliding bearing, further improve its wearability and resistance toHigh warm nature. Because air-conditioner comprises above-mentioned screw compressor, therefore also there is identical beneficial effect.
Brief description of the drawings
Fig. 1 is the structural representation of screw compressor one embodiment of the present invention;
Fig. 2 is the cooperation schematic diagram of bent axle, the first sliding bearing and movable orbiting scroll;
Fig. 3 is ceramic slide bearing frame schematic diagram;
Fig. 4 is ceramic slide bearing Moving plate schematic diagram;
Fig. 5 is the structural representation of bent axle;
Fig. 6 is the schematic diagram of the first sliding bearing;
Fig. 7 is the schematic diagram of the second sliding bearing.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and realityExecuting example is further elaborated to screw compressor of the present invention and air-conditioner. Should be appreciated that this placeThe specific embodiment of describing, only for explaining the present invention, is not intended to limit the present invention.
With reference to Fig. 1, the screw compressor of one embodiment of the invention is power Totally-enclosed type refrigeration screw compressor, itsBasic structure as shown in Figure 1, screw compressor comprise housing 23 and be placed in pump assembly in housing 23 andMotor, pump assembly comprises frame 12, quiet whirlpool dish 8, movable orbiting scroll 22, bent axle 16 and cross slip-ring 21,Frame 12 is welded on housing 23 by four spot welding, and quiet whirlpool dish 8 is fixed on by the first screw 9 and guide pillar 10In frame 12, the top of quiet whirlpool dish 8 is also provided with sealing ring 24. Movable orbiting scroll 22 is placed in frame 12 and quiet whirlpoolBetween dish 8, movable orbiting scroll 22 connects bent axle 16 by the first sliding bearing 19, described the first sliding bearing 19Be fixed in the dead eye on movable orbiting scroll 22 and with the top of described bent axle 16 and form friction pair. Bent axle16 lower end connects motor, and bent axle 16 is fixed in frame 12 by the second sliding bearing 13. Motor comprisesStator 14 and rotor 18.
The top of housing 23 is also provided with upper cover 1, in the cavity between upper cover 1 and housing 23, high-low pressure is setDemarcation strip 5, arranges check-valves on high-low pressure demarcation strip 5, and check-valves comprises non-return valve seat 3 and non-return valve block 2,Non-return valve seat 3 is fixed on high-low pressure demarcation strip 5 by the second screw 4, and non-return valve block 2 is placed in check-valvesIn seat 3. The top of upper cover 1 arranges suspension hook 25. The sidepiece of housing 23 is also provided with the wiring for connecting power supplyPost 20. In order to ensure the balance of bent axle, on bent axle 16, be provided with main balance weight 18 and secondary balance weight 15,Main balance weight 18 is between frame 12 and motor, and secondary balance weight 15 is placed in the bottom of bent axle 16.
Movable orbiting scroll 22 and quiet whirlpool dish 8 core components as screw compressor, movable orbiting scroll 22 and quiet whirlpool dish 8The molded line the most often adopting is circle involute and revises molded line. On movable orbiting scroll 22 and quiet whirlpool dish 8, scroll molded line isParameter is identical, and the bias after 180 ° that mutually staggers fits together, and it is several right between two vortex walls, can to formCrescent closed containing cavity.
When screw compressor running, the field drives rotor 17 of stator 14 rotates, rotor 17 and bent axle 16Be interference fit, bent axle 17 drives movable orbiting scroll 22 to move. Under the anti-rotation restriction of cross slip-ring 21, movingWhirlpool dish 22 does translational motion around bent axle 16 centers with the radius of fixing, thus movable orbiting scroll 22 and quiet whirlpool dish 8Vortex wall between form several to mutual isolation and volume continually varying compression chamber. Cold-producing medium is by air intake duct 11Enter the crescent suction muffler that movable orbiting scroll 22 and quiet whirlpool dish 8 form, and constantly close to whirlpool disk center, along withCrescent cavity volume dwindles gradually, and gas pressure and temperature in cavity volume are constantly improved, until compression chamber withQuiet whirlpool is coiled 8 steam vents and is communicated. The gas of HTHP enters the appearance that upper cover 1 and high-low pressure demarcation strip 5 formIn chamber, then discharge by blast pipe 6.
In order to solve problem easy to wear between bent axle 16 and frame 12, movable orbiting scroll 22, bent axle 16, firstAt least one member in sliding bearing 19 and the second sliding bearing comprises ceramic material or ceramic base composite woodMaterial.
Embodiment mono-
As shown in Figure 1 and Figure 5, bent axle 16 comprises be made up of ceramic material or ceramic matric composite wear-resistingCoating 26, wear-resistant coating 26 be placed in bent axle 16 with the first sliding bearing 19, the second sliding bearing 13Mating surface place. Ceramic matric composite is pottery and the composite of metal or ceramic and ceramic composite.
Process respectively one section at bent axle 16 with the first sliding bearing 19, the second sliding bearing 13 matching partsCertain thickness ceramic material or cermet composite-material wear-resistant coating 26. The first sliding bearing 19 and secondSliding bearing 13 all adopts common PTFE composite to make. The main body material therefor of bent axle 16 be carbon steel,Cast iron or other steel alloy etc., can be by laser cladding technology or plasma thermal sprayed technology etc., its with onState on the mating surface outer round surface that two sliding bearings match, process smooth, density is high, nothingThe wear-resistant coating of defect. Wear-resistant coating 26 can be oxide ceramics, carbide ceramics or nitride ceramics coatingMaterial, is preferably the wear-resistant pottery of pure oxide, the wear-resistant pottery of carbide or the wear-resistant ceramic material of nitride,Wear-resistant coating 26 also can be metal and ceramic wear resistant composite material.
, need carry bent axle 16 as thermal source by the laser beam of high-energy-density or the plasma jet of high temperature and high speedWhen the matrix surface at high-wearing feature position carries out irradiation or spraying, abrasion-resistant coating material and matrix material form smeltingThe wear-resistant coating of gold combination. The combination of wear-resistant coating comprises combination between coating and matrix and coating insideIn conjunction with, as above, the metallurgy of the high bond strength that is combined into metallurgical reaction appearance between wear-resistant coating and matrixIn conjunction with, by suitable technological parameter can by high the combination density of coating inside, structural strength is high. Wear-resistingCoating layer thickness scope is 0.1mm-2.5mm. By the molten pottery that covers or spray on above-mentioned two mating surfaces of bent axleOr metal ceramic compound wear resistant coating, utilize high rigidity, high strength, the excellence of pottery or ceramic compositeThe feature such as chemical stability and low-friction coefficient, improved hardness, the wearability on this wear-resistant coating surface,Thereby improve the operational reliability of this screw compressor, extended the service life of compressor.
Bent axle 16 is ceramic material wear-resistant coatings with the contact-making surface of sliding bearing 13,19, ceramic wear-resistant coatingThe hot physical performance (thermal coefficient of expansion and mechanical property) of material has most important to the friction of bent axle and bearingImpact, be the key component of crankshaft structure. In addition, this ceramic wear-resistant coating material has following characteristics:High-wearing feature, high rigidity, high with matrix material bond strength, coating density is high, approach with matrix materialThermal coefficient of expansion, with refrigerant and the good compatibility of refrigeration oil, good thermal shock resistance, goodStability at elevated temperature and excellent comprehensive mechanical performance. Only add pottery at bent axle with the sliding bearing face of matchingMaterial wear-resistant coating, the height of the hardness ratio bearing on bent axle surface, wearability is high.
Embodiment bis-
As shown in Figure 6 and Figure 7, the first sliding bearing 19 and the second sliding bearing 13 all adopt ceramic materialOr ceramic matric composite is made. Described ceramic matric composite is the composite of pottery and metal, orDescribed ceramic matric composite is ceramic and ceramic composite. Described ceramic matric composite is preferably oxygenCompound pottery, carbide ceramics or nitride ceramics.
As shown in Figures 1 to 5, the first sliding bearing 19 and the second sliding bearing 13 be full-ceramic bearing orCeramic matric composite bearing, by hot pressing nitride ceramics or oxide-base ceramic composite and non-oxygenChange based composite ceramic material composition. The first sliding bearing 19 of ceramic material is pressed into the bearing of movable orbiting scroll 22In seat hole, form ceramic slide bearing Moving plate, the second sliding bearing 13 of ceramic material is pressed into frame 12Form ceramic slide bearing frame. Between the first sliding bearing 19 and movable orbiting scroll 22, be interference fit, secondBetween sliding bearing 13 and frame 12, it is also interference fit.
Certainly, as another kind of embodiment, movable orbiting scroll 22 for holding the first sliding bearing 19Bearing saddle bore inwall be provided with the wear-resistant coating of being made by ceramic material or ceramic matric composite, in frame 12Be also provided with the wear-resisting painting of being made by ceramic material or ceramic matric composite with the second sliding bearing 13 mating surfacesLayer. When the first sliding bearing 19 rotates in the bearing saddle bore of movable orbiting scroll 22, the first 19, sliding bearing withBetween wear-resistant coating in the bearing saddle bore of movable orbiting scroll 22, produce friction, slide thereby further improved firstThe wearability of bearing 19 and movable orbiting scroll 22. In like manner, the second sliding bearing 13 in the time of the interior rotation of frame 12,The second 13, sliding bearing produces friction with the wear-resistant coating in frame 12, has further improved second and has slidedThe wearability of bearing 13 and frame 12.
Utilize high rigidity, high strength and the low roughness of ceramic material, for the bent axle 16 in running provides betterSupport. Compact structure, toughness is high, intensity is high, the ceramic material bearing of high rigidity and low roughness has good, there is small solid impurity, oil starvation, refrigeration oil quilt in performance and the dry friction performance of good anti impact wear-proofUnder the bad working environments such as dilution, and start or high-speed cruising under when larger vibration, still can keep normalWork.
Embodiment tri-
As shown in Figures 1 to 5, bent axle 16 comprises be made up of ceramic material or ceramic matric composite wear-resistingCoating 26, wear-resistant coating 26 be placed in bent axle 16 with the first sliding bearing 19, the second sliding bearing 13Mating surface place. Ceramic matric composite is pottery and the composite of metal or ceramic and ceramic composite.
Process respectively one section at bent axle 16 with the first sliding bearing 19, the second sliding bearing 13 matching partsCertain thickness ceramic material or cermet composite-material wear-resistant coating. Bent axle 16 in the present embodiment is with realExecute bent axle 16 in example one identical.
Meanwhile, the first sliding bearing 19 and the second sliding bearing 13 also all adopt ceramic material or ceramic base multipleCondensation material is made, and this ceramic matric composite is also the composite of pottery and metal, or this ceramic base is multipleCondensation material is ceramic and ceramic composite. Ceramic matric composite is preferably oxide ceramics, carbidePottery or nitride ceramics. The first sliding axle in the first sliding bearing 19 and embodiment bis-in the present embodimentHold 19 identical, the second sliding bearing 13 phases in the second sliding bearing 13 in the present embodiment and embodiment bis-With.
The place that the most easily occurs wearing and tearing at screw compressor all adopts ceramic material or ceramic matric composite,Improve the antiwear property of this damageable zone. For ensureing that suitable friction pair coordinates, and should join in pair in frictionAt least one aspect is selected high tenacity ceramic material. Compressor can produce larger shaking in startup and high-speed cruisingMoving, increase the toughness of friction pair and the bond strength of raising wear-resistant coating and matrix, be conducive to withstand shocks and carryLotus, the service life of prolongation parts. In bent axle mating surface surface wearable coating thickness range and embodiment mono-Be with ceramic bent axle identical, the ceramic wear-resistant coating thickness of bent axle is too thin, and its wearability and heat-resisting quantity obtain notTo meeting; If too thick, the fragility problem of ceramic material will be given prominence to, fragile, and in some casesThe phenomenon that there will be case hardness to reduce, wear-resistant coating thickness range is preferably 0.1mm-2.5mm.
The invention still further relates to a kind of air-conditioner, comprise the described screw compressor of above-mentioned arbitrary technical scheme, byExcept screw compressor, be prior art in air-conditioner, repeat no more herein. Utilize ceramic material hardness high,Machining accuracy is high, wearability good, can stand the feature of high temperature, solves current screw compressor in refrigerationSystem lacks fluorine, oil starvation, overload, return common bent axle 16 and composite under the operating modes such as liquid sliding bearing 13,19 common problems that cause compressor damage easy to wear.
The screw compressor of each embodiment and air-conditioner above, the bent axle of screw compressor, the first sliding bearingComprise ceramic material or ceramic matric composite with at least one member in the second sliding bearing, improved songThe wearability of axle and sliding bearing, has improved the heat-resisting quantity of bent axle and sliding bearing, solves bent axle and bearingProblem easy to wear, improve the mechanical efficiency of screw compressor, improved screw compressor in various operating modesReliability, processing cost is low, easy to assembly. To the optimization of bent axle and bearing, further improve its wearabilityAnd heat-resisting quantity. Because air-conditioner comprises above-mentioned screw compressor, therefore also there is identical beneficial effect.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed,But can not therefore be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that for this areaThose of ordinary skill, without departing from the inventive concept of the premise, can also make some distortion andImprove, these all belong to protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be with appendedClaim is as the criterion.
Claims (13)
1. a screw compressor, is characterized in that, comprises housing (23), is positioned at described housing (23)(8), movable orbiting scroll (22), bent axle (16) and frame (12), described movable orbiting scroll (22) are coiled in interior quiet whirlpoolConnect described bent axle (16) by the first sliding bearing (19), described the first sliding bearing (19) is fixed onMovable orbiting scroll (22) is upper and form friction pair, described frame (12) with the top of described bent axle (16)On be also provided with the second sliding bearing (13), described bent axle (16) is by described the second sliding bearing (13)Be fixed in described frame (12); Described bent axle (16), described the first sliding bearing (19) and describedAt least one member in two sliding bearings (13) comprises ceramic material or ceramic matric composite.
2. screw compressor according to claim 1, is characterized in that, described bent axle (16) comprisesThe wear-resistant coating of being made up of ceramic material or ceramic matric composite, described wear-resistant coating is placed in described bent axle(16) and mating surface place described the first sliding bearing (19), described the second sliding bearing (13).
3. screw compressor according to claim 2, is characterized in that, the thickness of described wear-resistant coatingFor 0.1mm-2.5mm.
4. screw compressor according to claim 2, is characterized in that, described wear-resistant coating is oxideCeramic layer, carbide ceramics layer or nitride ceramics layer.
5. screw compressor according to claim 2, is characterized in that, ceramic matric composite is madeDescribed wear-resistant coating be the wear-resistant coating made with metal composite of pottery or pottery and Ceramic Composite make resistance toMill coating.
6. according to the screw compressor described in claim 2-5 any one, it is characterized in that described bent axle (16)Main body as matrix, the combination of described wear-resistant coating comprises the knot between described wear-resistant coating and described matrixClose and the combination of described wear-resistant coating inside, described wear-resistant coating metallurgical binding is at described matrix.
7. according to the screw compressor described in claim 1-5 any one, it is characterized in that, described first is slidingDynamic bearing (19) and described the second sliding bearing (13) are the sliding axle that adopts PTFE composite to makeHold.
8. according to the screw compressor described in claim 1-5 any one, it is characterized in that, described first is slidingDynamic bearing (19) and described the second sliding bearing (13) are and adopt ceramic material or ceramic matric compositeThe sliding bearing of making.
9. screw compressor according to claim 8, is characterized in that, ceramic matric composite is madeDescribed sliding bearing be the sliding bearing that pottery is made with metal composite, or ceramic matric composite is madeDescribed sliding bearing be the sliding bearing that pottery is made with Ceramic Composite.
10. screw compressor according to claim 8, is characterized in that ceramic matric composite systemThe described sliding bearing becoming is the sliding bearing that oxide ceramics, carbide ceramics or nitride ceramics are made.
11. screw compressors according to claim 8, is characterized in that, described the first sliding bearing(19) be embedded in the bearing saddle bore of described movable orbiting scroll (22) described the first sliding bearing (19) and instituteState movable orbiting scroll (22) and form ceramic slide bearing Moving plate, described the first sliding bearing (19) and described movable orbiting scroll(22) interference fit; Described the second sliding bearing (13) is embedded in described frame (12), and describedTwo sliding bearings (13) form ceramic slide bearing frame, described the second sliding axle with described frame (12)Hold (13) and described frame (12) interference fit.
12. screw compressors according to claim 8, is characterized in that, in described movable orbiting scroll (22)The bearing saddle bore inwall for holding described the first sliding bearing (19) be provided with by ceramic material or ceramic baseThe wear-resistant coating that composite is made, in joining with described the second sliding bearing (13) of described frame (12)The face that closes is also provided with the wear-resistant coating of being made up of ceramic material or ceramic matric composite.
13. 1 kinds of air-conditioners, is characterized in that, comprise the scroll compression described in claim 1-12 any oneMachine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610141.5A CN105604933A (en) | 2014-10-31 | 2014-10-31 | Scroll compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610141.5A CN105604933A (en) | 2014-10-31 | 2014-10-31 | Scroll compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105604933A true CN105604933A (en) | 2016-05-25 |
Family
ID=55985161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410610141.5A Pending CN105604933A (en) | 2014-10-31 | 2014-10-31 | Scroll compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152403A (en) * | 2017-05-18 | 2017-09-12 | 浙江百达精工股份有限公司 | Scroll compressor demarcation strip and separation board fabrication method |
| CN107435632A (en) * | 2017-09-19 | 2017-12-05 | 广东美的暖通设备有限公司 | Screw compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02248676A (en) * | 1989-03-23 | 1990-10-04 | Matsushita Refrig Co Ltd | Scroll type fluid machine |
| JPH07247978A (en) * | 1994-03-14 | 1995-09-26 | Hitachi Ltd | Refrigerant pump |
| CN1989184A (en) * | 2005-04-01 | 2007-06-27 | 大金工业株式会社 | Composition for sliding member, sliding member, and fluid machine |
| CN201318287Y (en) * | 2008-12-25 | 2009-09-30 | 应建江 | Oil-free scroll compressor of anti-rotation and flexible mechanism |
| CN103069166A (en) * | 2010-08-11 | 2013-04-24 | 日立空调·家用电器株式会社 | Refrigerant compressor |
| CN104074753A (en) * | 2013-03-29 | 2014-10-01 | 株式会社日立制作所 | Refrigerant compressor |
| CN204200574U (en) * | 2014-10-31 | 2015-03-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
-
2014
- 2014-10-31 CN CN201410610141.5A patent/CN105604933A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02248676A (en) * | 1989-03-23 | 1990-10-04 | Matsushita Refrig Co Ltd | Scroll type fluid machine |
| JPH07247978A (en) * | 1994-03-14 | 1995-09-26 | Hitachi Ltd | Refrigerant pump |
| CN1989184A (en) * | 2005-04-01 | 2007-06-27 | 大金工业株式会社 | Composition for sliding member, sliding member, and fluid machine |
| CN201318287Y (en) * | 2008-12-25 | 2009-09-30 | 应建江 | Oil-free scroll compressor of anti-rotation and flexible mechanism |
| CN103069166A (en) * | 2010-08-11 | 2013-04-24 | 日立空调·家用电器株式会社 | Refrigerant compressor |
| CN104074753A (en) * | 2013-03-29 | 2014-10-01 | 株式会社日立制作所 | Refrigerant compressor |
| CN204200574U (en) * | 2014-10-31 | 2015-03-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152403A (en) * | 2017-05-18 | 2017-09-12 | 浙江百达精工股份有限公司 | Scroll compressor demarcation strip and separation board fabrication method |
| CN107435632A (en) * | 2017-09-19 | 2017-12-05 | 广东美的暖通设备有限公司 | Screw compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101133126B (en) | Composition for sliding parts, sliding parts and fluid machine | |
| CN1989184A (en) | Composition for sliding member, sliding member, and fluid machine | |
| CN204200574U (en) | Scroll compressor and air conditioner | |
| CN104074753A (en) | Refrigerant compressor | |
| WO2005068840A1 (en) | Fluid machine | |
| JP2003314448A (en) | Bearing for co2 refrigerant compressor, compressor using the bearing, and application of the compressor | |
| JP2005291151A (en) | Scroll type fluid machine | |
| JP2008274762A (en) | Compressor swash plate, and method of manufacturing the same | |
| CN105604933A (en) | Scroll compressor and air conditioner | |
| KR20020044453A (en) | surface treatment method of sliding parts for hermetic compressor | |
| JP2008261374A (en) | Sliding member and fluid machine using the same | |
| JP2001115959A (en) | Compressor | |
| CN112567133A (en) | Refrigerant compressor and refrigeration device using same | |
| JP2009287483A (en) | Refrigerant compressor | |
| CN101285469A (en) | Sliding member and scroll electric compressor using the same | |
| JPWO2005010372A1 (en) | Scroll compressor | |
| JP2005083339A (en) | Sliding device, manufacturing method thereof, and refrigerant compressor | |
| JP2003328966A (en) | Scroll compressor | |
| JP2007511692A (en) | Oil pump | |
| JP2005083235A (en) | Scroll compressor | |
| JPH10196562A (en) | Scroll compressor | |
| CN109996901B (en) | Oxide film, sliding member having the same formed thereon, and apparatus having the sliding member | |
| JP2001115958A (en) | Compressor | |
| JP6761978B2 (en) | Refrigerant compressor and freezing equipment using it | |
| JP2010101232A (en) | Refrigerant compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |
|
| RJ01 | Rejection of invention patent application after publication |