CN103174652B - A kind of screw air compressor and supporting rare-earth permanent-magnet electric machine thereof - Google Patents
A kind of screw air compressor and supporting rare-earth permanent-magnet electric machine thereof Download PDFInfo
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Abstract
The present invention relates to a kind of novel energy-conserving screw air compressor and supporting rare-earth permanent-magnet electric machine thereof, comprise body and be located at a pair pneumatics screw rod in body, it is characterized in that: the rotating shaft that the drive end and of described pneumatics screw rod is fixed with permanent magnet machine rotor is connected in series, and the stator of described magneto is fixedly arranged in body; Described body comprise by some end caps form in order to hold the motor room of permanent magnet motor stator and to hold the pneumatics room of pneumatics screw rod, described pneumatics room is adjacent with motor room, and has a shared end cap; The front cover of described pneumatics room offers screw compression gas air outlet, described screw compression gas air outlet is connected with Combined oil gas separator.The present invention can reduce 1/3 than the split type combined volume of original screw machine, applies comparable classic screw machine energy-conservation 20 ~ 30%, reduce noise 3 ~ 5 decibels, and oil gas separation is better.
Description
Technical field
The present invention relates to a kind of screw air compressor and supporting rare-earth permanent-magnet electric machine thereof.
Background technique
All adopt threephase asynchronous through one-level pulley drive drive screw head at the existing screw air compressor of China, reach the rotation speed requirements of screw rod head through belt pulley speed change, realize driving work.There is the deficiency of several aspect in this drive mechanism:
1. its threephase asynchronous machine matched generally selects rotating speed at 1400 revs/min or 2800 revs/min, and the rotating speed that screw rod head is suitable for is generally between 3000 ~ 5000, thus belt transmission must be adopted to carry out speed change, there is obvious mechanical loss in this variable speed drive approach, general one-level Belt Drive mechanical loss is 4 ~ 7%.
2. screw air compressor has a specific working state, when being raised in limited time atmospherically, then closing air inlet and maintains dry running, now must ensure the self-loopa of the pressure of 2kg for internal cooling oil, and now screw machine enters state of dormancy and flogs a dead horse.The service time of current China screw air compressor is 100% duty, but is only that between 50 ~ 60%, dormancy time is 40 ~ 50%, thus consumes energy very much with regard to load factor air demand.The electric current of threephase asynchronous machine when zero load is 30% of rated current; and the work maintained under 2kg working condition; then no load running electric current is now generally 40 ~ 45%; if shut down, system shock is large; the inrush current of threephase asynchronous machine is 2 ~ 6 times, and screw machine starts as starting under load, then inrush current is up to 6 times more than of rated current; thus all do not adopt direct shutdown, the method for work of startup realizes, and adopt dormancy working method.
3. existing screw air compressor working pressure is unstable, when pressure reaches in limited time, screw air compressor is closed suction port and is in no load running, now reservoir pressure progressively lower limit to lower air inlet in limited time close and open screw machine and be in working condition, thus the supply of main frame foreign work pressure is vary.The discharge capacity of screw machine is directly proportional to rotating speed, square being directly proportional of pressure and rotating speed, and cube being directly proportional of air horsepower and rotating speed, when flow is 80% of rated flow, air horsepower is only 51% of rated power, drops to nearly half.
Summary of the invention
The object of the present invention is to provide a kind of screw air compressor and supporting rare-earth permanent-magnet electric machine thereof, contribute to solving the problems such as the not enough and Oil-gas Separation in current drive mechanism aspect is not good.
Technical program of the present invention lies in:
A kind of screw air compressor and supporting rare-earth permanent-magnet electric machine thereof, comprise body and be located at a pair pneumatics screw rod in body, it is characterized in that: the rotating shaft that the drive end and of described pneumatics screw rod is fixed with permanent magnet machine rotor is connected in series, and the stator of described magneto is fixedly arranged in body.
Wherein, described body comprise by some end caps form in order to hold the motor room of permanent magnet motor stator and to hold the pneumatics room of pneumatics screw rod, described pneumatics room is adjacent with motor room, and has a shared end cap.
The front cover of described pneumatics room offers screw compression gas air outlet, described screw compression gas air outlet is connected with Combined oil gas separator.
Described Combined oil gas separator comprises the oil tank containing fluid, the machinery separation cylindrical shell be connected on screw compression gas air outlet is provided with in described oil tank, the inwall of described cylindrical shell is provided with lower helical guide plate, the middle part of described guide plate offers air guide port, the lower end of described mechanical separation cylindrical shell is placed in fluid, the top of described mechanical separation cylindrical shell is provided with capping, described capping offers mechanical separation air outlet, the inner wall of oil tank being positioned at mechanical separation air outlet is provided with hemisphere shape reflector.
The inside, lower end of described mechanical separation cylindrical shell is provided with metal filter screen.
The rear end of described body motor room is connected with centrifugal blower, described centrifugal blower comprises the shell that links together with motor room and to be located in shell and the centrifugal wind wheel be fixed on permanent magnet machine rotor outer end, the upper end of described shell is connected with oil cooler, be provided with in described shell and rotate in order to wind wheel the distinguished and admirable wind guide channel blowing to oil cooler produced, between described shell and motor room, be provided with magneto external admission mouth.
The permanent magnet machine rotor being positioned at rear end cover side, motor room is fixed with a heat dissipation metal fan blade, described heat dissipation metal fan blade comprises the centrifugation blade that the circle be fixedly arranged on permanent magnet machine rotor is dull and stereotyped and be vertically fixed on circular flat board, an angle of 90 degrees each other, the downside of the rear end cover of described motor room offers the suction port of air port towards centrifugation blade, exhaust outlet is offered on front side of the lower end cap of described motor room, form air-flow path in motor room between described exhaust outlet and suction port, the crow flight distance of described air-flow path and p-m rotor is greater than 50mm.
Described outer casing back offers centrifugal blower suction port, described centrifugal blower suction port is provided with the centrifugal blower suction port opening and closing device of adjustable suction port aperture, described oil tank bottom side is provided with oil temperature detect inductive probe, described inductive probe after control chip in order to drive centrifugal blower suction port opening and closing device.
Described rotating shaft is directly coaxially coupled to the drive end of pneumatics screw rod with tapering attached method, and adopts taper fit to be 1:10 ~ 1:15.
The rotor of described magneto adopts and is built in rotor punching groove by rare earth permanent-magnetic material, rectangular column state is adopted to fix parallel to the axis mode, its two magnetic pole link positions close to each other adopt air gap method, non-magnetic colloid material is adopted to fill at magnetic cylinder groove insulating space, adopt aluminium die casting to fill up in isolation channel space, rotor punching outer ring, and adopt aluminum annular-shaped end ring in rotor axial both ends of the surface, make isolation channel space, punching outer ring filling die casting aluminium and two end ring end face ring shape circle die casting aluminiums be integrated as the cylindric entirety of a mouse ridge formula.
The invention has the advantages that: the present invention adopts rare-earth permanent-magnet electric machine to be coaxially connected with screw machine main shaft, rare-earth permanent-magnet electric machine body and screw machine housing are integral type structure, spiral centrifugation blade is fixed on electric machine main shaft rear end, involute air channel and electric machine casing conjuncted, combined type mechanically multi-grade oil vapour is separated and is also integrated with screw machine casing simultaneously, form a poly-rare-earth permanent-magnet electric machine, screw rod head, the combined type machine head that combined type mechanically multi-grade oil vapour separator and the centrifugal cooling fan of worm-gear type are integrated, this combination can reduce 1/3 than the split type combined volume of original screw machine, the application comparable classic screw machine energy-conservation 20 ~ 30% of this invention, reduce noise 3 ~ 5 decibels, oil gas separation is better.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural representation.
Fig. 2 is the structural representation of the heat dissipation metal fan blade of the embodiment of the present invention.
Fig. 3 is the structural representation that traditional screw machine adopts cambered surface reflection.
Fig. 4 be the embodiment of the present invention rotor structure schematic diagram.
Wherein: helical guide plate under 1-; 2-Combined oil gas separator; 3-machinery separation air outlet; 4-hemisphere shape reflector; 5-screw compression gas air outlet; 6-Combined oil gas separator air outlet; 7-pneumatics screw rod; 8-shares end cap; 9-permanent magnet motor stator; 10-body motor room; 11-heat dissipation metal fan blade; The rear end cover of 12-motor room; The suction port of the rear end cover of 13-motor room; 14-rear end cover wind guide channel; 15-motor radiating air channel; 16-oil tank; The exhaust outlet of the lower end cap of 17-motor room; 18-centrifugal wind wheel; 19-centrifugal blower suction port; 20-magneto external admission mouth; 21-wind guide channel; 22-oil cooler; 23-exchanger filler opening; 24-exchanger oil outlet, 25-machine shaft and bolt rod driving end taper fit point; 26-rotating shaft; 27-permanent magnet machine rotor; 28-centrifugal blower suction port opening and closing device; 29-metal filter screen; The bonnet air chamber of 30-motor room; The protecgulum air chamber of 31-motor room; 32-fluid minute surface; 33-oil outlet; 34-screw machine suction port; 35-screw machine filler opening; 36-oil temperature detects inductive probe; 37-circular flat is dull and stereotyped; 38-centrifugation blade; 39-blade peace plate holder angle; 40-rare earth permanent-magnetic material; 41-is every magnetic space; The non-magnetic colloid material of 42-; The die casting of 43-aluminium is filled; 44-aluminum annular-shaped end ring.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
The present invention relates to a kind of screw air compressor and supporting rare-earth permanent-magnet electric machine thereof, comprise body and be located at a pair pneumatics screw rod 7 in body, the rotating shaft 26 that the drive end and of described pneumatics screw rod 7 is fixed with permanent magnet machine rotor 27 is connected in series, and the stator 9 of described magneto is fixedly arranged in body.
Above-mentioned body comprise by some end caps form in order to hold the motor room 10 of permanent magnet motor stator 9 and to hold the pneumatics room of pneumatics screw rod 7, described pneumatics room is adjacent with motor room, and has a shared end cap 8.
The front cover of above-mentioned pneumatics room offers screw compression gas air outlet 5, described screw compression gas air outlet 5 is connected with Combined oil gas separator 2.
Combinations thereof formula deaerator 2 comprises the oil tank 16 containing fluid, the machinery separation cylindrical shell be connected on screw compression gas air outlet 5 is provided with in described oil tank, the inwall of described cylindrical shell is provided with lower helical guide plate 1, the middle part of described guide plate 1 offers air guide port, the lower end of described mechanical separation cylindrical shell is placed in fluid, the top of described mechanical separation cylindrical shell is provided with capping, described capping offers mechanical separation air outlet 3, the inner wall of oil tank being positioned at mechanical separation air outlet 3 is provided with hemisphere shape reflector 4.
The bottom of above-mentioned mechanical separation cylindrical shell is provided with metal filter screen 29.
The rear end of above-mentioned body motor room is connected with centrifugal blower, described centrifugal blower comprises the shell that links together with motor room and to be located in shell and the centrifugal wind wheel 18 be fixed on permanent magnet machine rotor outer end, the upper end of described shell is connected with oil cooler 22, be provided with in described shell and rotate in order to wind wheel the distinguished and admirable wind guide channel 21 blowing to oil cooler produced, between described shell and motor room, be provided with magneto external admission mouth 20.
The permanent magnet machine rotor being positioned at rear end cover side, motor room is fixed with a heat dissipation metal fan blade 11, described heat dissipation metal fan blade 11 comprises the circle dull and stereotyped 37 be fixedly arranged on permanent magnet machine rotor and the centrifugation blade 38 be vertically fixed on circular flat board, an angle of 90 degrees each other, the downside of the rear end cover of described motor room offers the suction port 19 of air port towards centrifugation blade, exhaust outlet 17 is offered on front side of the lower end cap of described motor room, form air-flow path in motor room between described exhaust outlet and suction port, the crow flight distance of described air-flow path and p-m rotor is greater than 50mm.This air-flow path comprises rear end cover wind guide channel 14 and motor radiating air channel 15.
Above-mentioned outer casing back offers centrifugal blower suction port 19, described centrifugal blower suction port 19 is provided with the centrifugal blower suction port opening and closing device 28 of adjustable suction port aperture, described oil tank bottom side is provided with oil temperature detect inductive probe 36, described inductive probe after control chip in order to drive centrifugal blower suction port opening and closing device 28.
Above-mentioned rotating shaft 26 is directly coaxially coupled to the drive end of pneumatics screw rod 7 with tapering attached method, and adopts taper fit to be 1:10 ~ 1:15.
The rotor of above-mentioned magneto adopts and is built in rotor punching groove by rare earth permanent-magnetic material 40, rectangular column state is adopted to fix parallel to the axis mode, its two magnetic pole link positions close to each other adopt air gap method, non-magnetic colloid material 42 is adopted to fill at magnetic cylinder groove insulating space 41, adopt aluminium die casting to fill up 43 in isolation channel space, rotor punching outer ring, and adopt aluminum annular-shaped end ring 44 in rotor axial both ends of the surface, make isolation channel space, punching outer ring filling die casting aluminium and two end ring end face ring shape circle die casting aluminiums be integrated as the cylindric entirety of a mouse ridge formula.
Specific embodiment of the invention process: the present invention adopts rare-earth permanent-magnet electric machine to be coaxially connected with screw machine main shaft, rare-earth permanent-magnet electric machine body and screw machine housing are integral type structure, spiral centrifugation blade is fixed on electric machine main shaft rear end, involute air channel and electric machine casing conjuncted, combined type mechanically multi-grade oil vapour is separated and is also integrated with screw machine casing simultaneously, form a poly-rare-earth permanent-magnet electric machine, screw rod head, the combined type machine head that the centrifugal cooling fan of combined type mechanically multi-grade oil vapour separator worm-gear type is integrated, this combination can reduce 1/3 than the split type combined volume of original screw machine, the application comparable classic screw machine energy-conservation 20 ~ 30% of this invention, reduce noise 3 ~ 5 decibels.
Feature of the present invention is: 1, the rotor of rare-earth permanent-magnet electric machine is directly coaxially coupled to screw rod main shaft (Fig. 1 shows 25) with tapering attached method, employing taper fit is 1:10 ~ 1:15, the reliability of moment transmission when this matching method can ensure to coordinate, is convenient to again mounting or dismounting.2, adopt interior ventilating and cooling method to cool motor and screw rod, the common end cap of motor (Fig. 1 shows 8), cooling wind blade adopts metal fan blade so that heatproof work, and cooling wind blade is fixed on electric machine main shaft rear portion, back end cover for motor inboard (Fig. 1 shows 11) simultaneously.Cooling wind blade work utilizes main axis to drive fan blade coaxial rotation to produce centrifugal force, thus produce negative-pressure air-flow at the suction port of motor rear cover just to enter along rear end cover wind guide channel 14, enter bonnet air chamber (Fig. 1 shows 30) under the influence of centrifugal force, under the effect of bonnet wind guide channel (Fig. 1 shows 14), make air-flow along the wind guide channel (Fig. 1 shows 15) between electric machine casing and motor stator, rush at front motor cover air chamber (Fig. 1 shows 31), then discharge through magneto lower end cap exhaust outlet (Fig. 1 shows 17), this process implementation is to the outer surface forced air cooling of motor stator outer surface and screw rod lid.During screw rod work, temperature is between 90 ~ 97 DEG C, when motor and screw coaxial connect and the consubstantiality of electric machine casing and screw rod lid connects, screw rod operating temperature is just directly transferred in magneto main body, the easy loss of excitation of magneto permanent magnet can be caused like this, because its temperature influence factor of the loss of excitation of permanent magnet is key index, in adopting, ventilating and cooling method is both effectively direct cools motor stator surface, simultaneously again can direct cooling screw end cap, effectively prevent screw rod head to the heat transfer of motor.3, the metal fan blade be fixed on rotor main shaft adopts centrifugation blade to be vertically fixed on circular flat board, 90 ゜ angles (Fig. 2 shows) each other, the structural feature of this centrifugation blade is that fan blade is enclose (Fig. 2 shows) by circular flat board near rotor-side, during work, air-flow and tiny dust particles all run along air channel and air quantity one piece and are discharged under the influence of centrifugal force, rotor can not be entered, rotor is a closed high magnetic fields, when magnetic conduction dust is when near 30mm, then easily be inhaled into and invest rotor surface, of a specified duration then strengthening causes the normal work affecting body, the design is all greater than 50mm in the crow flight distance of gas flow and rotor, then magnetic conduction dust enters rotor to adopt isolated fan blade effectively to ensure that.
Feature of the present invention is: the outside of the pressurized gas air outlet (Fig. 1 shows 5) of assembled screw rod head is provided with a multi-stage mechanical deaerator (Fig. 1 shows 2), and its multistage Oil-gas Separation is by spiral centrifugal separation, collisional absorption, spheric reflection three grades composition.Screw rod head compressed air outlet port is equipped with a cylindric separator (it comprises the guide plate of mechanical separation cylindrical shell and inside), and compressed mixed gas enters cylindric separator one-tenth from (Fig. 1 shows 5) outlet along oblique tangent direction, the centrifugal tangent line of spiral way runs.Now according to the generation separating layer of poor quality between minute shape particle oil body and gas, the gas of lighter weight part then just goes out from air outlet (Fig. 1 shows 3) in the spiral inner side that line runs of cutting sth. askew, subparticle oil then along tangent direction according to gravity different and under sink to Cylindrical object bottom, then discharged by Cylindrical object bottom (Fig. 1 shows 29) after filter screen filtration.Mixed pressure oil gas do lower spiral cut sth. askew line movement process time, molecule oil under the effect of inertial force along tangent to helix direction to cylindrical shell collision with wall produce centrifugal force, at this moment inertial force is greater than centrifugal force and occurs deceleration regime.According to fluid in the duct operate near wall layer generating layer flow phenomenon principle, owing to slow down and the generation of laminar flow phenomenon achieves wall absorption oil droplet effect.Fluid layer fluid layer flow velocity is slow, and very fast at mesosphere flow velocity, collision is slowed down, the laminar flow phenomenon oil droplet significantly absorbed in mixed gas makes it to sink to being separated.But the large oil droplet of the diameter quality that makes again of the effect of centrifugal force is naturally separated to periphery, diameter quality little then at middle inner ring, next gaseous mass be separated gently then goes out from air outlet (Fig. 1 shows 3) at inner ring.Oil droplet in outer ring is then sunk from going out by absorption.Spirally-guided inclined clapboard (namely descending helical guide plate) (Fig. 1 shows 1) is then housed in the inside of column deaerator, the central. set of dividing plate is synthesized a cylindrical hollow hole and is convenient to divided gas flow and passes through, and the effect of its dividing plate is the absorption of centrifugal guiding and the oil droplet to mixed gas impact walls.Metal filter screen (Fig. 1 shows 29) is housed in the bottom of column separator, its effect is filtered greasy dirt and increases air resistance, gas after being separated in column deaerator must go out from (Fig. 1 shows 3) air outlet, and can not go out from oil outlet, thus pressure reduction must be had between two outlets, within it bottom arranges filter screen and can produce pressure reduction, play again the effect of filtering oil gas, as long as disassemble column separator during maintenance, just can with diesel oil cleaning, the method of this filtration greasy dirt is adopted neither to produce the pressure loss, play again the generation of natural pressure reduction in separator.The oil outlet of column separator must be arranged under working oil liquid level, and this installation method is also ensure the other method at column separator interior pressure reduction.
Mixed gas after spiral centrifugal collision is separated is from (Fig. 1 shows 3) outlet injection, direct injection is to first sphere reflector (Fig. 1 shows 4) of Combined oil gas separator housing, due to microparticle oil and the difference in quality of gas, its reflection speed variable grain shape oil content firing rate degree is fast, when gas is then compressible reflection, the reason reflection speed absorbed due to pressure elasticity significantly weakens, then just make oil gas carry out three times and be separated.This design is owing to adopting hemisphere geometric surface at reflective surface, the principle identical with reflection angle according to the plane of incidence, under the effect of sphere, reflected ray and incident ray have angle, and so just effectively overcome and divide the oil droplet shed again to be mixed by incidence point mixed gas after reflection.Traditional screw machine adopts cambered surface reflection (Fig. 3 shows), on oil droplet after reflection is separated and positive face diameter, the mixed gas that sprays mutually impacts and does not instead produce drag reduction reflecting effect, and separated after oil droplet again containing part mixed gas and mixing again, spheric reflection achieves three separation, gas after being separated through three times goes out through air outlet (Fig. 1 shows 6), enters next procedure strainer filtering.Employing is separated comparable original tradition single employing cambered surface one-level separation (Fig. 3 shows) separating effect for three times through the I and II separation of spiral centrifugal separation collisional absorption and semicircle reflection can improve 25 ~ 35%, reach the effect of filtration, purification cold oil simultaneously, greasy dirt resistance is effectively reduced to next procedure strainer filtering, thus decrease the pressure loss that lower road filter causes because of greasy dirt, too increase the service time of filter filter screen simultaneously, decrease maintenance expenses.
Feature of the present invention is: after the rare-earth permanent-magnet electric machine of mono-tank, shaft is equipped with a centrifugal wind wheel (Fig. 1 shows 18), at the rear side of rare-earth permanent-magnet electric machine, centrifugal blower wind guide channel (Fig. 1 shows 21) is housed, oil cooler (Fig. 1 shows 22) is housed up, (Fig. 1 shows 19 at the centrifugal blower import and export position, outside of centrifugal wind wheel, air output automatic control storm door (i.e. certain centrifugal blower suction port opening and closing device) to be housed, 28), the main technical characterstic of this design be wind wheel directly and main shaft coaxial, independently must not set axial flow driven by motor fan blade in addition to dispel the heat to oil cooler, saving spatial structure is simple, efficiency is high simultaneously, energy-conservation, it is another that more crucially centrifuge is obviously little relative to noise of axial flow fan, under comparable conditions can noise reduction 3 ~ 5 decibels.Air output automatic control storm door is set outside the intake grill of centrifugal wind wheel, the way detecting oil temperature is adopted to carry out the cooling air quantity of controlled cooling model device, when measuring point oil temperature is low, (<80 DEG C) air door is closed, when measuring point oil temperature is higher than door opening when 85 DEG C, so effectively ensure that normal working temperature and the mobility of screw rod head cold oil, simultaneously more effectively energy saving, the idle work reducing wind wheel exports.The design can be corresponding according to performance characteristic self-assembling formation throughput, when screw rod head rotating speed high oil temperature is just high, so the fast airflow pressure of centrifugal wind wheel rotating speed is also with big, realizes the quick cooling to heat exchanger.When screw rod head rotating speed is low, then the slow wind speed and pressure of centrifugal wind wheel rotating speed is little, and also just slow to the rate of cooling of heat exchanger, centrifugal wind wheel consumption and energy are also just little simultaneously.The oil temperature cooling of current screw machine all adopts axial-flow blower to heat exchanger radiating mode, but energy consumption is large, noise large, it is large to take up room, and its drive motor efficiency is between 78 ~ 85, and Driven by Coaxial magneto efficiency can reach between 93 ~ 95%.Axial-flow blower relies on blade to produce thrust with the strong friction of air, and make air-flow become 90 ゜ angles, noise is large against the wind, efficiency is low, and centrifugal wind wheel by centrifugal force, air-flow is blown, and friction is little, noise is little, efficiency is high.
Feature of the present invention adopts rare earth permanent-magnetic material to be built in rotor punching groove, as shown in Figure 4, rectangular column state is adopted to fix parallel to the axis mode, its two magnetic pole link positions close to each other adopt air gap method, non-magnetic colloid material is adopted to fill at magnetic cylinder groove insulating space, adopt aluminium die casting to fill up in isolation channel space, rotor punching outer ring, and adopt aluminum annular-shaped end ring in rotor axial both ends of the surface, die casting aluminium is filled in the isolation channel space, punching outer ring made and two end ring end face ring shape circle die casting aluminiums are integrated as a mouse ridge formula entirety, so namely, play separated magnetic effect, reach again the effect of fixed rotor sheet simultaneously, sheet rotor sheet is made to become a cylindrical integral.
As Fig. 4 shows: is very crucial at its rotor punching of magnetic material two contact position every magnetic space strip area, if strip area greatly, causes leakage field to increase, the direct working efficiency affecting rare-earth permanent-magnet electric machine, if punching is little every magnetic space strip area, cause punching press difficulty, reduce centrifugal force when mechanical strength cannot overcome High Rotation Speed simultaneously, cause mechanical damage.In diagram, a should control between 1.0 ~ 1.4mm; B should control between 1.5 ~ 2.2mm, α angle should control at 12 ~ 18 °, c magnet steel groove insulating space should adopt the combined strength glue of non magnetic quick-drying to fill, and fill up, otherwise can affect entire combination intensity, complete and fill up, magnetic steel rotor punching and aluminium die casting space, outer ring form a kind of complete combination.When can effectively ensure to run up like this, the mechanical strength of rotor, during rotor high-speed running, outer ring each point centrifugal force be very big, and corresponding mechanical strength must be had to ensure.
As Fig. 4 shows: wherein c, d are combined into every magnetic space, a, b be punching every magnetic strip width, if a, b width is large, leakage field is large.
Specific embodiments such as Fig. 1 shows: pass into variable-frequency power sources to rare-earth permanent-magnet electric machine stator (Fig. 1 shows 9), then rare-earth permanent-magnetic synchronous rotor (Fig. 1 shows 27) just rotates, drive screw rod main shaft (Fig. 1 shows 7) and motor blower fan (Fig. 1 shows 11), centrifugal wind wheel (Fig. 1 shows 18) rotates simultaneously, variable-frequency power sources can drive motor rotor in the scope of 0-6000 revs/min by input routine signal sets itself rotating speed, the rotation of screw rod produces compressed oil oxygen mixture, oil gas is respectively by screw rod head filler opening (Fig. 1 shows 35), suction port (Fig. 1 shows 34) enters, oil is wherein for head lubrication work lubrication and cooling.Air-fuel mixture gas after the compression of screw rod head enters multi-grade oil gas separating device (Fig. 1 shows 2), mixed gas after the collision of one-level spiral centrifugal is separated carries out three times from (Fig. 1 shows 3) outlet directive (Fig. 1 shows 4) hemisphere face and is separated, after being separated, oil goes out from separator oil export (Fig. 1 shows 33), and the mixed gas after being separated goes out from multiple-stage separator outlet (Fig. 1 shows 6).Oil after separation enters from cooler inlet (Fig. 1 shows 23), goes out, carry out secondary cycle after heat exchange from cooler outlet (Fig. 1 shows 24).Motor blower fan rotates and produces centrifugal force, then fan blade inner circumferential produces negative pressure, cooling air enters from bonnet suction port (Fig. 1 shows 13), bonnet air guide channel (Fig. 1 shows 14) is entered after centrifugal action, through motor air channel to protecgulum space, then go out (Fig. 1 shows 15,17) from protecgulum exhaust outlet, realize the cooling to motor stator and screw rod end cap, front motor cover.Centrifugal wind wheel (Fig. 1 shows 18) rotates inner circumferential and produces negative pressure, the outside of centrifugal wind wheel is an open circles, inner side is a closed plane, then just produce negative pressure in outside, open air door (Fig. 1 shows 28), cooling air enters and goes out from air channel (Fig. 1 shows 21) after centrifugal, and realize the cooling of exchange exchanger (Fig. 1 shows 22) brute force, the wind then after heat exchange goes out above heat exchanger.
The present invention adopts knockdown method by rare-earth permanent-magnet electric machine, screw rod head, oil, vapour is separated into one, rotor adopts the method for rotor inner hole coning sleeve to make it rotor and screw rod main shaft is same one, the simple volume of global design structure is little, comparable original volume reduces 1/2, rotor and screw rod main shaft are with one, mechanical efficiency is high, coaxial good concentricity, mechanical strength is high, working life can extend 20%, particularly bearing can double above working life, this same Axile connection structure shaft strength is adopted to be circle uniform stressed, there is no radial pull, solve classic screw machine because of the flimsy problem of the large bearing of radial force, main shaft there are three rigid bearings be same axis, solve the precision problem of sight alignment concentric.
The present invention adopts rare-earth permanent-magnet electric machine efficiency high, higher than threephase asynchronous machine efficiency by 4 ~ 8%, motor and main shaft are coaxial, change tradition belt transmission connecting mode, mechanical loss can reduce by 4 ~ 7%, adopting frequency conversion weighing apparatus pressure to export control can make user in the work of optimum working pressure scope, can directly shut down when working condition is in low tolerance, the Rate of average load of China's classic screw machine is 50 ~ 60%, thus the electric energy under screw machine state of dormancy can be saved in system works, between screw machine work 38 ~ 45% when its energy loss of state of dormancy is not rated load, the dormancy operating time is between 40 ~ 50%, for the screw machine of 37KW 50HP, dormancy loss is the loss of 37*0.4(dormancy load) * 0.45(dormancy time accounts for the ratio of operating time) time of the every single work of * 8()=53.28 degree of electricity, then the operating time of every 8 hours just can economize on electricity 53.28 degree for 50HP screw air compressor.
The present invention adopts worm-gear type centrifugal impeller to be fixed on screw rod rear-end of spindle portion, is provided with involute wind guide channel in screw rod casing rearward end.When spindle operation, worm gear fan blade rotates thereupon, form negative pressure in worm gear impeller central under the influence of centrifugal force, outer ring forms malleation, and air-flow is then entered by central part, under the effect of turbine centrifugal power, enter air chamber along outer ring tangent direction directive wind guide channel, realize the heat radiation to loose wind device.The present invention can be corresponding according to performance characteristic self-assembling formation throughput, when the temperature rise of working speed height body, then the fast airflow pressure of worm gear fan blade rotating speed is large, realize cooling fast, when the temperature rise of working speed low body is low, then the low air quantity of worm gear fan blade rotating speed is little, and cooling effectiveness is also low, then the corresponding energy consumed is also few.Current screw machine heat radiation all adopts independent axial-flow blower radiating mode.There is the shortcomings such as power consumption is large, noise is large, volume is large, also have to adopt and the corresponding type of cooling is adjusted to cooling fan method for controlling frequency conversion, but manufacture cost obviously increases, the drive efficiency loss of axial-flow blower is large simultaneously, drive motor efficiency is between 78 ~ 85%, and Driven by Coaxial rare-earth permanent-magnet electric machine efficiency can reach between 92 ~ 95%.Thus the cooling mode adopting worm-gear type fan blade to be fixed on screw rod main shaft has its advantage: 1. noise is low, because the friction of blade and air-flow is little during the work of worm-gear type blower fan, against air-flow by centrifugal action, and axial-flow blower leans on the friction of air-flow and fan blade to advance, then noise height 2. drive efficiency height 3. structure cylinder bar volume is little, axial fan blade is large, and individual motor drives that to occupy space large again.
The present invention adopts to be fixed on wall and to shake on element (its wall shake element be fixed on support) by assembled screw rod body, be placed in airtight Sound Attenuator, adopt lower curtate mazy type gas-entered passageway, top heat extraction mode carries out vibration silencer process.Wall shake element namely have buffering and isolation sound object conduction, lower curtate labyrinth type air intake gas passage can play the effect of isolation acoustic transmission, sealed mode casing wall is provided with noise reduction, soundproof material, noise reduction damping function can be played, air chamber is entered through the effect of worm gear fan blade by runner by gas after body thermal source and air heat exchange in casing, produce in air chamber pressure to radiating fin carry out exchange heat radiation then discharge, radiating fin is that namely the combination that interlocks of the sheet of multilayer has the effect of heat exchange, has again noise reduction damping function simultaneously.Existing screw machine casing suction port and interior the leading directly to of casing are distributed in side, can not effectively play sound insulation sound deadening, body and support evenly adopt rigidity connecting mode can not isolate the object conduction of sound wave simultaneously, and thus existing housing structure soundproof effect is bad.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. the combination unit of a screw air compressor and supporting rare-earth permanent-magnet electric machine thereof, comprise body and be located at a pair pneumatics screw rod in body, it is characterized in that: the rotating shaft that the drive end and of described pneumatics screw rod is fixed with permanent magnet machine rotor is connected in series, and the stator of described magneto is fixedly arranged in body, described body comprise by some end caps form in order to hold the motor room of permanent magnet motor stator and to hold the pneumatics room of pneumatics screw rod, described pneumatics room is adjacent with motor room, and there is a shared end cap, the rear end of described body motor room is connected with centrifugal blower, described centrifugal blower comprises the shell that links together with motor room and to be located in shell and the centrifugal wind wheel be fixed on permanent magnet machine rotor outer end, the upper end of described shell is connected with oil cooler, be provided with in described shell and rotate in order to wind wheel the distinguished and admirable wind guide channel blowing to oil cooler produced, magneto external admission mouth is provided with between described shell and motor room, the permanent magnet machine rotor being positioned at rear end cover side, motor room is fixed with a heat dissipation metal fan blade, described heat dissipation metal fan blade comprises the centrifugation blade that the circle be fixedly arranged on permanent magnet machine rotor is dull and stereotyped and be vertically fixed on circular flat board, the downside of the rear end cover of described motor room offers the suction port of air port towards centrifugation blade, exhaust outlet is offered on front side of the lower end cap of described motor room, air-flow path is formed in motor room between described exhaust outlet and suction port, the crow flight distance of described air-flow path and p-m rotor is greater than 50mm, described outer casing back offers centrifugal blower suction port, described centrifugal blower suction port is provided with the centrifugal blower suction port opening and closing device of adjustable suction port aperture, the front cover of described pneumatics room offers screw compression gas air outlet, described screw compression gas air outlet is connected with Combined oil gas separator, described Combined oil gas separator comprises the oil tank containing fluid, the machinery separation cylindrical shell be connected on screw compression gas air outlet is provided with in described oil tank, the inwall of described cylindrical shell is provided with lower helical guide plate, the middle part of described guide plate offers air guide port, the lower end of described mechanical separation cylindrical shell is placed in fluid, the top of described mechanical separation cylindrical shell is provided with capping, described capping offers mechanical separation air outlet, the inner wall of oil tank being positioned at mechanical separation air outlet is provided with hemisphere shape reflector, described oil tank bottom side is provided with oil temperature detect inductive probe, described inductive probe after control chip in order to drive centrifugal blower suction port opening and closing device, when measuring point oil temperature lower than when 80 DEG C air door close, when measuring point oil temperature is higher than door opening when 85 DEG C.
2. the combination unit of a kind of screw air compressor according to claim 1 and supporting rare-earth permanent-magnet electric machine thereof, is characterized in that: the inside, lower end of described mechanical separation cylindrical shell is provided with metal filter screen.
3. the combination unit of a kind of screw air compressor according to claim 1 and supporting rare-earth permanent-magnet electric machine thereof, is characterized in that: described rotating shaft is directly coaxially coupled to the drive end of pneumatics screw rod with tapering attached method, and adopts taper fit to be 1:10 ~ 1:15.
4. the combination unit of a kind of screw air compressor according to claim 1 and supporting rare-earth permanent-magnet electric machine thereof, it is characterized in that: the rotor of described magneto adopts and is built in rotor punching groove by rare earth permanent-magnetic material, rectangular column state is adopted to fix parallel to the axis mode, its two magnetic pole link positions close to each other adopt air gap method, non-magnetic colloid material is adopted to fill at magnetic cylinder groove insulating space, adopt aluminium die casting to fill up in isolation channel space, rotor punching outer ring, and adopt aluminum annular-shaped end ring in rotor axial both ends of the surface, isolation channel space, punching outer ring filling die casting aluminium and two end ring end face ring shape circle die casting aluminiums are made to be integrated as the cylindric entirety of a mouse ridge formula, wherein punching controls between 1.0 ~ 1.4mm every magnetic strip width a, punching controls between 1.5 ~ 2.2mm every magnetic strip width b.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018054861A1 (en) * | 2016-09-21 | 2018-03-29 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Screw compressor for a utility vehicle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106989027B (en) | 2017-06-05 | 2019-05-24 | 珠海格力电器股份有限公司 | Multistage compressor |
| CN108953157B (en) * | 2018-09-05 | 2024-06-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Air compressor and vehicle with same |
| WO2020123273A1 (en) | 2018-12-10 | 2020-06-18 | Carrier Corporation | Modular compressor discharge system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4211139A1 (en) * | 1992-04-03 | 1993-10-07 | Putzmeister Maschf | Mixing and compressed air conveyor |
| JPH09170582A (en) * | 1995-12-19 | 1997-06-30 | Mitsubishi Heavy Ind Ltd | Air compression unit |
| CN1366584A (en) * | 2000-02-17 | 2002-08-28 | 大金工业株式会社 | Screw compressor |
| JP2006214309A (en) * | 2005-02-02 | 2006-08-17 | Hokuetsu Kogyo Co Ltd | Separated oil collection construction of oil cooled screw compressor |
| CN101624984A (en) * | 2009-08-05 | 2010-01-13 | 徐道敏 | Vertical single screw air compressor |
| CN102868275A (en) * | 2012-09-18 | 2013-01-09 | 无锡锡山特种风机有限公司 | Three-phase permanent magnet synchronous motor |
| CN203114635U (en) * | 2013-03-09 | 2013-08-07 | 郭自刚 | Screw air compressor device with efficient heat dissipation effect |
-
2013
- 2013-03-09 CN CN201310075293.5A patent/CN103174652B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4211139A1 (en) * | 1992-04-03 | 1993-10-07 | Putzmeister Maschf | Mixing and compressed air conveyor |
| JPH09170582A (en) * | 1995-12-19 | 1997-06-30 | Mitsubishi Heavy Ind Ltd | Air compression unit |
| CN1366584A (en) * | 2000-02-17 | 2002-08-28 | 大金工业株式会社 | Screw compressor |
| JP2006214309A (en) * | 2005-02-02 | 2006-08-17 | Hokuetsu Kogyo Co Ltd | Separated oil collection construction of oil cooled screw compressor |
| CN101624984A (en) * | 2009-08-05 | 2010-01-13 | 徐道敏 | Vertical single screw air compressor |
| CN102868275A (en) * | 2012-09-18 | 2013-01-09 | 无锡锡山特种风机有限公司 | Three-phase permanent magnet synchronous motor |
| CN203114635U (en) * | 2013-03-09 | 2013-08-07 | 郭自刚 | Screw air compressor device with efficient heat dissipation effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018054861A1 (en) * | 2016-09-21 | 2018-03-29 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Screw compressor for a utility vehicle |
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