CN106762667A - A kind of water lubrication screw air compressor and air compression method - Google Patents
A kind of water lubrication screw air compressor and air compression method Download PDFInfo
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- CN106762667A CN106762667A CN201710055139.XA CN201710055139A CN106762667A CN 106762667 A CN106762667 A CN 106762667A CN 201710055139 A CN201710055139 A CN 201710055139A CN 106762667 A CN106762667 A CN 106762667A
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- bearing
- housing
- rotor
- water
- sliding bearing
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/602—Gap; Clearance
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- 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
- F04C2240/20—Rotors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention relates to a kind of water lubrication screw air compressor and air compression method.Can there are some oil molecules in the compressed air of oil lubricating compressor.The present invention includes housing, exhaust gear, end cap, No. two end caps, screw male rotor mechanism, gland seal assembly and a screw female rotor mechanisms, is characterized in：Housing is provided with hole for water spraying, screw male rotor mechanism includes male rotor, gap adjusting module, a number sliding bearing sleeve, a number bearing shell, a number fastener, No. two sliding bearing sleeves, No. two bearing shells, No. two fasteners and No. two abaculus, a number sliding bearing sleeve suit is fixed on of male rotor and is fastened by a fastener, a number axle bush sleeve puts mounted in a sliding bearing and a bearing shell and a sliding bearing sleeve gap coordinate, a number bearing shell is provided with a hole for water spraying, gap between a number hole for water spraying and a bearing shell and a sliding bearing sleeve connects, male rotor and female rotor are engaged.The present invention uses fully water lubricating, realizes complete oil free compression.
Description
Technical field
The present invention relates to a kind of water lubrication screw air compressor and air compression method, belong to technical field of air compression.
Background technology
Because lubricating oil is heavy chemicals, there is injury on human body, influence can be produced on techniques such as textile dyestuffs, therefore one
It is very high to the requirement of compressed air oil content in the industries such as a little textile industry, particularly food, medical treatment.Air compressor is in application
During, there are many process systems already to be perplexed by the lubricating oil in compressed air, it is unqualified in Oil-gas Separation technology
In the case of, this disadvantage has even delayed the speed of technological progress to a certain extent, causes many technological process secular stagnations
Before not, with continuous progress, the innovation of process for making, the raising of product quality level of science and technology, it is desirable to compressed gas
The technological process of body oil-free is more and more universal.This undoubtedly makes the market prospects of oil-free air compressor more wide.In certain meaning
For in justice, this is the developing direction of air compressor.In the research and development tide of oil-free type, water lubrication oil free screw air pressure
Contracting machine will undoubtedly turn into the main flow in market.
There is problems with oil lubricating compressor：（1）Fuel injection helical lobe compressor uses exhaust gas filter, can only filter major diameter
, still can there are some oil molecules in air in oil particles.（2）Dry type oil-free screw compressor, because without oil lubrication and sealing,
Air compressor machine efficiency is low, noise big, and bearing still uses oil lubrication, it is impossible to accomplish to be fully sealed.（3）Single screw rod water spray lubrication
Screw machine uses stainless steel material mostly, and efficiency is low, and screw rod and gear use rolling bearing, bearing grease or oil lubrication,
Oil molecule can be mingled with exhaust, it is impossible to accomplish 0 oil content；If publication date is on October 10th, 2012, Publication No.
In the Chinese patent of CN102042225B, a kind of disclosed water-lubricating single screw compressor.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and a kind of reasonable in design is provided,
Scientific arrangement, it is easy to use, can solve the problem that the problem that traditional exhaust end base of oil injection threaded bolt air compressor machine is present water lubrication screw air compressor and
Air compression method.
The present invention the used technical scheme that solves the above problems is：The water lubrication screw air compressor includes housing, row
Mechanism of qi structure, end cap, No. two end caps, screw male rotor mechanism, gland seal assembly and a screw female rotor mechanisms, the housing
Air compression chamber is inside provided with, the housing is provided with air inlet, and the air inlet is connected with air compression chamber, the air exhauster
Structure is provided with exhaust outlet, and the exhaust outlet is connected with air compression chamber, an end cap, housing, exhaust gear and No. two ends
Lid is fixed successively, and its design feature is：The housing is provided with hole for water spraying, and the hole for water spraying is connected with air compression chamber；It is described
Screw male rotor mechanism includes male rotor, gap adjusting module, sliding bearing sleeve, bearing shell, fastener, two
Number sliding bearing sleeve, No. two bearing shells, No. two fasteners and No. two abaculus, the sliding bearing sleeve suit are fixed on male rotor
One and fastened by fastener, an axle bush sleeve puts and a bearing shell and No. one mounted in a sliding bearing
Sliding bearing sleeve gap coordinates, and a bearing shell and housing are fixed, and a bearing shell is provided with a hole for water spraying, described No. one
Gap between hole for water spraying and a bearing shell and a sliding bearing sleeve connects, and the male rotor is by gland seal assembly and an end
Lid connection, No. two sliding bearing sleeves suit is fixed on the other end of male rotor and is fastened by No. two fasteners, described two
Number axle bush sleeve puts mounted in No. two sliding bearings and No. two bearing shells and No. two sliding bearing sleeve gaps coordinate, No. two bearing shells and
Exhaust gear is fixed, and No. two bearing shells are provided with No. two hole for water sprayings, No. two hole for water sprayings and No. two bearing shells and No. two sliding axles
Gap connection between bearing sleeve, No. two abaculus are fixed on the other end of male rotor, and the gap adjusting module includes quiet disk
And Moving plate, the Moving plate is provided with aqua storage tank, and the quiet disk and housing are fixed, and the Moving plate and male rotor are fixed, the Moving plate
In be provided with aqua storage tank one side and quiet disk contact；The screw female rotor mechanism include female rotor, No. three sliding bearing sleeves,
No. three bearing shells, No. three fasteners, No. three abaculus, No. four sliding bearing sleeves, No. four bearing shells, No. four fasteners and No. four abaculus, institute
State No. three sliding bearing sleeve suits to be fixed on of female rotor and fastened by No. three fasteners, No. three axle bush sleeves are mounted in
No. three sliding bearings are put and No. three bearing shells and No. three sliding bearing sleeve gaps coordinate, and No. three bearing shells and housing are fixed, should
No. three bearing shells are provided with No. three hole for water sprayings, and No. three hole for water sprayings and the gap between No. three bearing shells and No. three sliding bearing sleeves connect
Logical, No. three abaculus are fixed on of female rotor, and No. four sliding bearing sleeves suit is fixed on the other end of female rotor
And fastened by No. four fasteners, No. four axle bush sleeves put and No. four bearing shells and No. four sliding axles mounted in No. four sliding bearings
Bearing sleeve gap coordinates, and No. four bearing shells and exhaust gear are fixed, and No. four bearing shells are provided with No. four hole for water sprayings, No. four sprays
Gap between water hole and No. four bearing shells and No. four sliding bearing sleeves connects, and No. four abaculus are fixed on the another of female rotor
Head；The male rotor and female rotor are engaged, and the part that the male rotor and female rotor are meshed is respectively positioned on the air compression chamber of housing
In.Water lubrication screw air compressor uses fully water lubricating, realizes complete oil free compression, and oil content is 0 in the compressed air of output；
Air compressor machine key components and parts can be formed using various special material Combined machinings, can effectively reduce air compressor machine moving component matter
Amount, reduces mechanical loss, while avoiding corrosion of the water to each parts；Air compressor screw rod rotor can by corrosion resisting steel material and
Special engineering plastics Combined machining is formed, and rotor quality is light, corrosion-resistant, processing is simple；The radial load of screw rotor is moistened by water
Sliding sliding bearing support；The axial load of screw rotor is supported by gap adjusting module, by controlling gap module axle to length
Control screw rotor gap, improves the performance of screw air compressor.
Preferably, the centre or bottom of an end cap of the present invention are provided with a gully-hole, a gully-hole
Connected by the air inlet of external pipeline and housing, or a gully-hole is connected by the air inlet of inner flow passage and housing
Connect.
Preferably, the centre or bottom of No. two end caps of the present invention are provided with No. two gully-holes, No. two gully-holes
Connected by the air inlet of external pipeline and housing, or No. two gully-holes are connected by the air inlet of inner flow passage and housing
Connect.
Preferably, male rotor of the present invention and female rotor are constituted by arbor portions and screw molded lines part, it is described
Screw molded lines part suit is fixed on arbor portions, and the arbor portions use stainless steel, corrosion-resisting alloy steel or ceramics
Composite, the screw molded lines part uses special engineering plastics or aluminium alloy light material.
Preferably, a sliding bearing sleeve of the present invention and male rotor interference fits, No. two sliding bearing sleeves
With male rotor interference fits, No. three sliding bearing sleeves and female rotor interference fits and cloudy turn No. four sliding bearing sleeves
Sub- interference fits.
Preferably, there is gap between the end face of the end face and exhaust gear of male rotor of the present invention and female rotor,
The distance in the gap is 0.02-0.1mm.
Preferably, the bearing saddle bore interference fit of a bearing shell of the present invention and housing, No. two bearing shells and row
The bearing saddle bore interference fit of mechanism of qi structure interference fit, No. three bearing shells and housing, No. four bearing shells and exhaust gear mistake
It is full of cooperation.
Preferably, a fastener of the present invention, No. two fasteners, No. three fasteners and No. four fasteners are circle
Nut.
Preferably, the two ends of screw rotor of the present invention pass through housing and exhaust gear respectively through four vias, with cunning
Dynamic bearing coordinates, and via inlays babbit or copper product, thickness 2-5mm, to increase the wearability of mating surface with axle mating surface
With the etching extent for reducing screw rotor axle.
Preferably, gland seal assembly of the present invention uses mechanical seal, it is to avoid screw rotor Axial and radial play causes close
Envelope is bad；Or, the gland seal assembly adds the assembly of rolling bearing and oil sealing using mechanical seal, can bear shaft end higher
Load.
Preferably, screw rotor of the present invention is processed by combined material, its arbor portions is using stainless steel, corrosion-resistant
Steel alloy, ceramic composite etc., its screw molded lines part is using light materials such as special engineering plastics, aluminium alloys.
Preferably, screw rotor radial load of the present invention by sliding bearing support, bearing bush part using graphitic carbon,
The materials such as engineering plastics, ceramics, bearing holder (housing, cover) is processed using combined material, wherein with bearing shell break-in face with stainless steel or commonly
Steel alloy chrome-faced anticorrosion, with armature spindle faying face using wear-resisting, resistant materials such as copper, aluminium or babbits.
Preferably, gap adjusting module of the present invention is made up of two parts, bar is used with the quiet disk that housing is linked together
The high-abrasive material such as family name's alloy or copper, the Moving plate being linked together with rotor is processed using special engineering plastics, and Moving plate revolves with rotor
Transhipment is dynamic, and end face drives aqua storage tank and moisture film is formed between sound disk, increases the wearability of Moving plate.
Preferably, housing of the present invention, exhaust gear and end cap are corrosion-resistant using aluminium, alloy aluminum, stainless steel etc.
Material is processed.
A kind of air compression method using described water lubrication screw air compressor, its feature is：The air pressure
The step of compression method, is as follows：Male rotor receives outer driving torque rotation, output squeezing air；Air inlet is provided with the housing,
Exhaust outlet is provided with the exhaust gear, air is sucked from the air inlet of housing, by male rotor and female rotor engagement compressed shape
Into pressure-air, discharged by the exhaust outlet of exhaust gear；The housing and bearing shell are provided with hole for water spraying, and water under high pressure participates in sliding
The lubrication and male rotor and the gear motion of female rotor of moving axis bearing sleeve, play a part of lubrication, sealing, radiating and cooling；It is described
The arbor portions of male rotor and female rotor are processed using stainless steel material processing, molded line part using special engineering plastics, and sun turns
Son and female rotor have the advantages that the good, light weight of rigidity, good processability, can effectively improve air compressor machine compression performance and reduce and give birth to
Produce cost；The bearing holder (housing, cover) is processed using the combined material of stainless steel and Babbitt alloy material, installed in male rotor and the moon
Two of rotor, with male rotor and female rotor interference fits, is compressed, with male rotor and female rotor rotary motion by round nut；
Bearing shell is made of graphitic carbon or special engineering plastics, and one is connected to using interference fit and exhaust gear or housing bearing saddle bore
Rise, hole for water spraying is provided with bearing shell, water under high pressure sprays into the gap between bearing shell and bearing holder (housing, cover) from the hole for water spraying of bearing shell, forms moisture film branch
Support male rotor and female rotor radial load；The gap adjusting module is made up of quiet disk and Moving plate, quiet disk using babbit or
Copper product, is embedded in the air inlet end face of housing, and Moving plate uses special engineering plastics or wear resistant plastic material, is bonded in male rotor
End face, Moving plate rotates with male rotor, is closed with quiet mill, and the end face of Moving plate is provided with aqua storage tank, leads in the break-in face of quiet disk and Moving plate
Cross aqua storage tank suction water and form moisture film, improve the running-in ability of quiet disk and Moving plate；The end cap is provided with gully-hole in middle or bottom,
The rear water discharged is lubricated to bearing holder (housing, cover) for collecting, the water discharged is back to the air inlet of housing by external pipeline
Mouthful, it is to avoid water overflows；Air compressor machine uses fully water lubricating, realizes complete oil free compression, and oil content is 0 in the compressed air of output；
Air compressor machine key components and parts are formed using various special material Combined machinings, can effectively reduce air compressor machine heavy moving parts,
Mechanical loss is reduced, while avoiding corrosion of the water to each parts；Air compressor screw rod rotor is by corrosion resisting steel material and extraordinary work
Engineering plastics Combined machining is formed, and rotor quality is light, corrosion-resistant, processing is simple；The radial load of screw rotor is by water-lubricated slide
Bearings；The axial load of male rotor is supported by gap adjusting module, by the axial length control for controlling gap adjusting module
The gap of male rotor processed, improves the performance of screw air compressor.
The present invention compared with prior art, with advantages below and effect：Compressed using the air screw of complete water lubrication
Machine, oil molecule content is zero in exhaust, and injection water temperature is low, and compression efficiency is higher；Rotor can be manufactured using model engineering plastic,
Wearability is good, human body is not injured, and density of material is low, mitigates rotor quality, greatly improves air compressor machine efficiency；Bearing can be complete
Portion uses plastics（Or graphite, babbit etc.）Bearing shell sliding bearing, by water spray lubrication, bears rotor operation radial load；
The pad that shaft end is made of two kinds of mutual high-abrasive materials constitutes gap adjusting module to bear axial load, while passing through control room
Gap adjusting module thickness adjustment rotor exhaust splaying, no longer with rolling bearing clearance adjust gap, therefore equipment install and
Manufacturing process is simpler.
Exhaust end is cased with bearing holder (housing, cover) with inlet end screw rod outside, has abaculus, bearing between bearing holder (housing, cover) and screw rod contact surface
Set outside is cased with bearing shell, and when the compressor is operating, screw rod and abaculus, bearing holder (housing, cover) are rotated together, bearing shell and housing and exhaust gear
Maintain static.Water is connected between screw rod and housing in the inlet end in screw rod by gap adjusting module, if in twin-screw compression
In machine, gap adjusting module is present in male rotor exhaust end.Be free of during compressor operating, it is only necessary to water lubrication, therefore in exhaust
There is oil molecule.
Brief description of the drawings
Fig. 1 is the Split type structure schematic diagram of water lubrication screw air compressor in the embodiment of the present invention.
Fig. 2 is the cross section structure diagram of water lubrication screw air compressor in the embodiment of the present invention.
In figure：1- housings；2- exhaust gears；Number end cap of 3-；No. bis- end caps of 4-；5- screw male rotors mechanism；6- axles
Sealing assembly；7- screw female rotors mechanism；51- male rotors；52- gaps adjusting module；The quiet disks of 521-；522- Moving plates；53- mono-
Sliding bearing sleeve；Number bearing shell of 54-；Number fastener of 55-；No. bis- sliding bearing sleeves of 56-；No. bis- bearing shells of 57-；58- bis- is tight
Firmware；No. bis- abaculus of 59-；71- female rotors；No. tri- sliding bearing sleeves of 72-；No. tri- bearing shells of 73-；No. tri- fasteners of 74-；75- tri-
Number abaculus；No. tetra- sliding bearing sleeves of 76-；No. tetra- bearing shells of 77-；No. tetra- fasteners of 78-；No. tetra- abaculus of 79-.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Embodiment.
Referring to Fig. 1 to Fig. 2, the water lubrication screw air compressor in the present embodiment includes housing 1,2, end of exhaust gear
Set in 3, No. two end caps 4 of lid, screw male rotor mechanism 5, gland seal assembly 6 and screw female rotor mechanism 7, housing 1 free
Gas compression chamber, housing 1 is provided with air inlet, and air inlet is connected with air compression chamber, and exhaust gear 2 is provided with exhaust outlet, exhaust
Mouth is connected with air compression chamber, and end cap 3, housing 1, exhaust gear 2 and No. two end caps 4 are fixed successively, and housing 1 is provided with spray
Water hole, the hole for water spraying is connected with air compression chamber.
Screw male rotor mechanism 5 in the present embodiment includes male rotor 51,52, sliding bearing of gap adjusting module
Cover the 53, sliding bearing sleeve 56, two of fastener 55, two fastener 58 of bearing shell 57, two of bearing shell 54, one and No. two embedding
Block 59 a, sliding bearing sleeve 53 is set with and is fixed on of male rotor 51 and is fastened by a fastener 55, a bearing shell
54 are sleeved on a sliding bearing sleeve 53 and a bearing shell 54 and the gap of sliding bearing sleeve 53 cooperation, a He of bearing shell 54
Housing 1 is fixed, and a bearing shell 54 is provided with a hole for water spraying, a hole for water spraying and a bearing shell 54 and a sliding bearing sleeve
Gap connection between 53, male rotor 51 is connected by gland seal assembly 6 and an end cap 3, and No. two suits of sliding bearing sleeve 56 are solid
It is scheduled on the other end of male rotor 51 and is fastened by No. two fasteners 58, No. two bearing shells 57 is sleeved on No. two sliding bearing sleeves 56
And No. two bearing shells 57 and No. two gaps of sliding bearing sleeve 56 coordinate, No. two bearing shells 57 and exhaust gear 2 are fixed, No. two bearing shells 57
No. two hole for water sprayings are provided with, the gap between No. two hole for water sprayings and No. two bearing shells 57 and No. two sliding bearing sleeves 56 connects, No. two
Abaculus 59 is fixed on the other end of male rotor 51, and gap adjusting module 52 includes quiet disk 521 and Moving plate 522, and Moving plate 522 is provided with
Aqua storage tank, quiet disk 521 and housing 1 are fixed, and Moving plate 522 and male rotor 51 are fixed, be provided with Moving plate 522 aqua storage tank one side and
Quiet disk 521 is contacted.
Screw female rotor mechanism 7 in the present embodiment includes the bearing shell of sliding bearing sleeve 72, three of female rotor 71, three
73rd, No. three sliding bearing sleeve 76, four of abaculus 75, four fasteners 78 of bearing shell 77, four of fastener 74, three and No. four abaculus
79, No. three sliding bearing sleeves 72 are set with and are fixed on of female rotor 71 and are fastened by No. three fasteners 74, No. three bearing shells 73
It is sleeved on No. three sliding bearing sleeves 72 and No. three bearing shells 73 and No. three gaps of sliding bearing sleeve 72 cooperations, No. three bearing shells 73 and shell
Body 1 is fixed, and No. three bearing shells 73 are provided with No. three hole for water sprayings, No. three hole for water sprayings and No. three bearing shells 73 and No. three sliding bearing sleeves 72
Between gap connection, No. three abaculus 75 are fixed on of female rotor 71, and No. four suits of sliding bearing sleeves 76 are fixed on cloudy turning
The other end of son 71 is simultaneously fastened by No. four fasteners 78, and No. four bearing shells 77 are sleeved on No. four sliding bearing sleeves 76 and No. four axles
Watts 77 and No. four gaps of sliding bearing sleeve 76 coordinate, No. four bearing shells 77 and exhaust gear 2 are fixed, and No. four bearing shells 77 are provided with four
Number hole for water spraying, the gap between No. four hole for water sprayings and No. four bearing shells 77 and No. four sliding bearing sleeves 76 connects, and No. four abaculus 79 are consolidated
It is scheduled on the other end of female rotor 71；Male rotor 51 and female rotor 71 are engaged, the part that the male rotor 51 and female rotor 71 are meshed
It is respectively positioned in the air compression chamber of housing 1.
The centre or bottom of an end cap 3 in the present embodiment are provided with a gully-hole, and a gully-hole passes through extension tube attached
The air inlet connection of road and housing 1.The centre or bottom of No. two end caps 4 are provided with No. two gully-holes, and No. two gully-holes are by external
The air inlet connection of pipeline and housing 1.
A sliding bearing sleeve 53 and the interference fits of male rotor 51 in the present embodiment, No. two sliding bearing sleeves 56 and sun turn
Sub 51 interference fits, No. three sliding bearing sleeves 72 and the interference fits of female rotor 71, No. four sliding bearing sleeves 76 and the mistake of female rotor 71
Cross cooperation.There is gap between the end face of the end face and exhaust gear 2 of male rotor 51 and female rotor 71, the distance in the gap is
0.02-0.1mm。
The bearing saddle bore interference fit of a bearing shell 54 and housing 1 in the present embodiment, No. two bearing shells 57 and exhaust gear 2
The bearing saddle bore interference fit of interference fit, No. three bearing shells 73 and housing 1, No. four bearing shells 77 and the interference fit of exhaust gear 2.One
Number fastener 74 of fastener 58, three of fastener 55, two and No. four fasteners 78 are round nut.
Male rotor 51 and female rotor 71 in the present embodiment are processed by combined material, and its arbor portions is using stainless
Steel, corrosion resistant steel alloy, ceramic composite etc., its screw molded lines part is using lightweights such as special engineering plastics, aluminium alloys
Material.
The two ends of the screw rotor in the present embodiment pass through housing 1 and exhaust gear 2 respectively through four vias, with slip
Bearing fit, via and axle mating surface inlay babbit or copper product, thickness 2-5mm, with increase mating surface wearability and
Reduce the etching extent of screw rotor axle.Gland seal assembly 6 uses mechanical seal, it is to avoid screw rotor Axial and radial play causes sealing not
It is good；Or, gland seal assembly 6 adds the assembly of rolling bearing and oil sealing using mechanical seal, can bear shaft end load higher.
The step of air compression method in the present embodiment, is as follows：Male rotor 51 receives outer driving torque rotation, output pressure
Contracting air；Air inlet is provided with housing 1, exhaust outlet is provided with exhaust gear 2, air is sucked from the air inlet of housing 1, by sun
Rotor 51 and the engagement compression of female rotor 71 form pressure-air, are discharged by the exhaust outlet of exhaust gear 2；Housing 1 and bearing shell are equal
Hole for water spraying is provided with, water under high pressure participates in the lubrication of sliding bearing sleeve and the gear motion of male rotor 51 and female rotor 71, plays
Lubrication, sealing, the effect of radiating and cooling；The arbor portions of male rotor 51 and female rotor 71 are using stainless steel material processing, molded line
Part using special engineering plastics processing, male rotor 51 and female rotor 71 have the good, light weight of rigidity, good processability it is excellent
Point, can effectively improve air compressor machine compression performance and reduce production cost；Bearing holder (housing, cover) is using stainless steel and the group of Babbitt alloy material
Condensation material is processed, and installed in male rotor 51 and two of female rotor 71, with male rotor 51 and the interference fits of female rotor 71, is led to
Round nut compression is crossed, with male rotor 51 and the rotary motion of female rotor 71；Bearing shell is made of graphitic carbon or special engineering plastics, is adopted
Linked together with exhaust gear 2 or the bearing saddle bore of housing 1 with interference fit, be provided with hole for water spraying on bearing shell, water under high pressure is from bearing shell
Hole for water spraying spray into gap between bearing shell and bearing holder (housing, cover), form moisture film support male rotor 51 and the radial load of female rotor 71；Between
Gap adjusting module 52 is made up of quiet disk 521 and Moving plate 522, and quiet disk 521 uses babbit or copper product, is embedded in housing 1
Air inlet end face, Moving plate 522 uses special engineering plastics or wear resistant plastic material, is bonded in the end face of male rotor 51, Moving plate 522 with
Male rotor 51 rotates, and with the break-in of quiet disk 521, the end face of Moving plate 522 is provided with aqua storage tank, in quiet disk 521 and the break-in face of Moving plate 522
Water is sucked by aqua storage tank and forms moisture film, improve the running-in ability of quiet disk 521 and Moving plate 522；End cap is provided with collection in middle or bottom
Water hole, the rear water discharged is lubricated to bearing holder (housing, cover) for collecting, and the water discharged is back to housing 1 by external pipeline
Air inlet, it is to avoid water overflows；Air compressor machine uses fully water lubricating, realizes complete oil free compression, oil content in the compressed air of output
It is 0；Air compressor machine key components and parts are formed using various special material Combined machinings, can effectively reduce air compressor machine moving component matter
Amount, reduces mechanical loss, while avoiding corrosion of the water to each parts；Air compressor screw rod rotor is by corrosion resisting steel material and special type
Engineering plastics Combined machining is formed, and rotor quality is light, corrosion-resistant, processing is simple；The radial load of screw rotor is slided by water lubrication
Dynamic bearing is supported；The axial load of male rotor 51 is supported by gap adjusting module 52, by the axle for controlling gap adjusting module 52
The gap of male rotor 51 is controlled to length, the performance of screw air compressor is improved.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Claiming etc. can be with difference, and the above content described in this specification is only to structure example explanation of the present invention.It is all according to
The equivalence changes or simple change done according to the construction described in inventional idea of the present invention, feature and principle, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do various to described specific embodiment
The modification of various kinds or supplement are substituted using similar mode, without departing from structure of the invention or surmount present claims
Scope defined in book, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of water lubrication screw air compressor, including housing（1）, exhaust gear（2）, an end cap（3）, No. two end caps（4）、
Screw male rotor mechanism（5）, gland seal assembly（6）With screw female rotor mechanism（7）, the housing（1）Inside it is provided with air
Compression chamber, the housing（1）Air inlet is provided with, the air inlet is connected with air compression chamber, the exhaust gear（2）Set
There is exhaust outlet, the exhaust outlet is connected with air compression chamber, an end cap（3）, housing（1）, exhaust gear（2）With No. two
End cap（4）Fix successively, it is characterised in that：The housing（1）Hole for water spraying is provided with, the hole for water spraying is connected with air compression chamber；
The screw male rotor mechanism（5）Including male rotor（51）, gap adjusting module（52）, a sliding bearing sleeve（53）, one
Number bearing shell（54）, a fastener（55）, No. two sliding bearing sleeves（56）, No. two bearing shells（57）, No. two fasteners（58）With two
Number abaculus（59）, a sliding bearing sleeve（53）Suit is fixed on male rotor（51）One and pass through a fastener
（55）Fastening, a bearing shell（54）It is sleeved on a sliding bearing sleeve（53）A upper and bearing shell（54）With a sliding axle
Bearing sleeve（53）Gap coordinates, a bearing shell（54）And housing（1）It is fixed, a bearing shell（54）It is provided with a water spray
Hole, a hole for water spraying and a bearing shell（54）With a sliding bearing sleeve（53）Between gap connection, the male rotor
（51）By gland seal assembly（6）With an end cap（3）Connection, No. two sliding bearing sleeves（56）Suit is fixed on male rotor
（51）Other end and pass through No. two fasteners（58）Fastening, No. two bearing shells（57）It is sleeved on No. two sliding bearing sleeves（56）
Upper and No. two bearing shells（57）With No. two sliding bearing sleeves（56）Gap coordinates, No. two bearing shells（57）And exhaust gear（2）Gu
It is fixed, No. two bearing shells（57）It is provided with No. two hole for water sprayings, No. two hole for water sprayings and No. two bearing shells（57）With No. two sliding bearings
Set（56）Between gap connection, No. two abaculus（59）It is fixed on male rotor（51）Other end, the gap adjusts mould
Block（52）Including quiet disk（521）And Moving plate（522）, the Moving plate（522）It is provided with aqua storage tank, the quiet disk（521）And housing
（1）It is fixed, the Moving plate（522）And male rotor（51）It is fixed, the Moving plate（522）In be provided with the one side and quiet disk of aqua storage tank
（521）Contact；The screw female rotor mechanism（7）Including female rotor（71）, No. three sliding bearing sleeves（72）, No. three bearing shells
（73）, No. three fasteners（74）, No. three abaculus（75）, No. four sliding bearing sleeves（76）, No. four bearing shells（77）, No. four fasteners
（78）With No. four abaculus（79）, No. three sliding bearing sleeves（72）Suit is fixed on female rotor（71）One and pass through No. three
Fastener（74）Fastening, No. three bearing shells（73）It is sleeved on No. three sliding bearing sleeves（72）Upper and No. three bearing shells（73）With No. three
Sliding bearing sleeve（72）Gap coordinates, No. three bearing shells（73）And housing（1）It is fixed, No. three bearing shells（73）It is provided with No. three
Hole for water spraying, No. three hole for water sprayings and No. three bearing shells（73）With No. three sliding bearing sleeves（72）Between gap connection, described three
Number abaculus（75）It is fixed on female rotor（71）One, No. four sliding bearing sleeves（76）Suit is fixed on female rotor（71）'s
Other end simultaneously passes through No. four fasteners（78）Fastening, No. four bearing shells（77）It is sleeved on No. four sliding bearing sleeves（76）It is upper and four
Number bearing shell（77）With No. four sliding bearing sleeves（76）Gap coordinates, No. four bearing shells（77）And exhaust gear（2）Fixed, this four
Number bearing shell（77）It is provided with No. four hole for water sprayings, No. four hole for water sprayings and No. four bearing shells（77）With No. four sliding bearing sleeves（76）It
Between gap connection, No. four abaculus（79）It is fixed on female rotor（71）Other end；The male rotor（51）And female rotor
（71）Engagement, the male rotor（51）And female rotor（71）The part being meshed is respectively positioned on housing（1）Air compression chamber in.
2. water lubrication screw air compressor according to claim 1, it is characterised in that：A number end cap（3）Centre
Or bottom is provided with a gully-hole, a gully-hole passes through external pipeline and housing（1）Air inlet connection, it is or described
A number gully-hole passes through inner flow passage and housing（1）Air inlet connection；And/or, No. two end caps（4）Centre or bottom
No. two gully-holes are provided with, No. two gully-holes pass through external pipeline and housing（1）Air inlet connection, or it is described No. two collection
Water hole passes through inner flow passage and housing（1）Air inlet connection.
3. water lubrication screw air compressor according to claim 1, it is characterised in that：The male rotor（51）And female rotor
（71）Constituted by arbor portions and screw molded lines part, the screw molded lines part suit is fixed on arbor portions, described
Arbor portions use stainless steel, corrosion-resisting alloy steel or ceramic composite, and the screw molded lines part is using special engineered
Plastics or aluminium alloy light material.
4. water lubrication screw air compressor according to claim 1, it is characterised in that：A number sliding bearing sleeve（53）
And male rotor（51）Interference fits, No. two sliding bearing sleeves（56）And male rotor（51）Interference fits, No. three slips
Bearing holder (housing, cover)（72）And female rotor（71）Interference fits, No. four sliding bearing sleeves（76）And female rotor（71）Interference fits.
5. water lubrication screw air compressor according to claim 1, it is characterised in that：The male rotor（51）And female rotor
（71）End face and exhaust gear（2）End face between there is gap, the distance in the gap is 0.02-0.1mm.
6. water lubrication screw air compressor according to claim 1, it is characterised in that：A number bearing shell（54）And housing
（1）Bearing saddle bore interference fit, No. two bearing shells（57）And exhaust gear（2）Interference fit, No. three bearing shells（73）
And housing（1）Bearing saddle bore interference fit, No. four bearing shells（77）And exhaust gear（2）Interference fit.
7. water lubrication screw air compressor according to claim 1, it is characterised in that：A number fastener（55）, two
Number fastener（58）, No. three fasteners（74）With No. four fasteners（78）It is round nut.
8. water lubrication screw air compressor according to claim 1, it is characterised in that：The two ends of screw rotor respectively through
Four vias pass through housing（1）And exhaust gear（2）, coordinate with sliding bearing, via and axle mating surface inlay babbit or
Copper product, thickness 2-5mm, to increase the wearability of mating surface and reduce the etching extent of screw rotor axle.
9. water lubrication screw air compressor according to claim 1, it is characterised in that：The gland seal assembly（6）Using machine
Tool is sealed, it is to avoid screw rotor Axial and radial play causes poor sealing；Or, the gland seal assembly（6）Using mechanical seal plus
The assembly of rolling bearing and oil sealing, can bear shaft end load higher.
10. the air compression side of a kind of water lubrication screw air compressor using as described in claim 1~9 any claim
Method, it is characterised in that：The step of air compression method, is as follows：Male rotor（51）Receive outer driving torque rotation, output pressure
Contracting air；The housing（1）On be provided with air inlet, the exhaust gear（2）On be provided with exhaust outlet, air is from housing（1）Enter
Gas port is sucked, by male rotor（51）And female rotor（71）Engagement compression forms pressure-air, by exhaust gear（2）Exhaust
Mouth discharge；The housing（1）Hole for water spraying is provided with bearing shell, water under high pressure participates in the lubrication and male rotor of sliding bearing sleeve
（51）And female rotor（71）Gear motion, play a part of lubrication, sealing, radiating and cooling；Hole for water spraying, high pressure are provided with bearing shell
Water sprays into the gap between bearing shell and bearing holder (housing, cover) from the hole for water spraying of bearing shell, forms moisture film support male rotor（51）And female rotor（71）
Radial load；The gap adjusting module（52）By quiet disk（521）And Moving plate（522）Composition, quiet disk（521）Using babbit
Or copper product, it is embedded in housing（1）Air inlet end face, Moving plate（522）Using special engineering plastics or wear resistant plastic material, bonding
In male rotor（51）End face, Moving plate（522）With male rotor（51）Rotation, with quiet disk（521）Break-in, Moving plate（522）End face
Aqua storage tank is provided with, in quiet disk（521）And Moving plate（522）Break-in face water sucked by aqua storage tank form moisture film, improve quiet disk
（521）And Moving plate（522）Running-in ability；Air compressor machine uses fully water lubricating, complete oil free compression is realized, in the compressed air of output
Oil content is 0；Male rotor（51）Axial load by gap adjusting module（52）Support, by controlling gap adjusting module（52）
Axial length control male rotor（51）Gap, improve screw air compressor performance.
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| CN201710055139.XA CN106762667B (en) | 2017-01-24 | 2017-01-24 | A kind of water lubrication screw air compressor and air compression method |
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| CN201710055139.XA CN106762667B (en) | 2017-01-24 | 2017-01-24 | A kind of water lubrication screw air compressor and air compression method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757450A (en) * | 2018-05-14 | 2018-11-06 | 西安交通大学 | A kind of helical-lobe compressor using sliding bearing |
| CN108843569A (en) * | 2018-08-23 | 2018-11-20 | 中山市捷科能机电科技有限公司 | Water spray double-screw compressor |
| CN108916048A (en) * | 2018-08-23 | 2018-11-30 | 中山市捷科能机电科技有限公司 | A kind of wear-resistant self-lubricating rotor and double-screw compressor of spraying water |
| CN109458330A (en) * | 2018-09-30 | 2019-03-12 | 宁波鲍斯能源装备股份有限公司 | Water jet helical-lobe compressor |
| CN109915368A (en) * | 2019-04-19 | 2019-06-21 | 烟台菱辰能源有限公司 | A kind of fuel cell gearless screw rod oil-free air compressor |
| CN109931261A (en) * | 2019-02-01 | 2019-06-25 | 宁波鲍斯能源装备股份有限公司 | Water lubrication helical-lobe compressor |
| WO2020053976A1 (en) * | 2018-09-11 | 2020-03-19 | 株式会社日立産機システム | Screw compressor |
| CN110985389A (en) * | 2019-11-22 | 2020-04-10 | 中国航发西安动力控制科技有限公司 | Water-based lubricating corrosion-resistant Roots compressor |
| CN113151771A (en) * | 2020-12-23 | 2021-07-23 | 浙江翰德圣智能再制造技术有限公司 | Spraying repair process for annular curved surface of air compressor |
| CN114505673A (en) * | 2022-02-18 | 2022-05-17 | 苏州寿力气体设备有限公司 | Air compressor main engine exhaust end screw rod gap adjusting process |
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| CN109915368A (en) * | 2019-04-19 | 2019-06-21 | 烟台菱辰能源有限公司 | A kind of fuel cell gearless screw rod oil-free air compressor |
| CN110985389A (en) * | 2019-11-22 | 2020-04-10 | 中国航发西安动力控制科技有限公司 | Water-based lubricating corrosion-resistant Roots compressor |
| CN113151771A (en) * | 2020-12-23 | 2021-07-23 | 浙江翰德圣智能再制造技术有限公司 | Spraying repair process for annular curved surface of air compressor |
| CN114505673A (en) * | 2022-02-18 | 2022-05-17 | 苏州寿力气体设备有限公司 | Air compressor main engine exhaust end screw rod gap adjusting process |
| CN114505673B (en) * | 2022-02-18 | 2023-10-20 | 日立压缩机(苏州)有限公司 | Air compressor main machine exhaust end screw clearance adjustment process |
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