High efficiency and heat radiation formula plasma arc cutting torchTechnical field
The present invention relates to plasma arc cutting torch technical field, especially a kind of high efficiency and heat radiation formula plasma arc cutting torch.
Background technology
Cutting torch is the important tool of gas welding, existing machine type plasma arc cutting torch design structure letter on domestic marketSingle, production process is poor, along with the domestic technical college without this respect, lacks technological know-how education, so technology oneCause fall behind the epoch, cause the cutting torch cutting power made weak, and cut quality is poor, expendable part service life band, using intoThis some high row problem；In practical work process, electrode and spout belong to expendable part, for electric current reach 200A and withWhen upper, needed to cool down electrode and spout, existing way be cutting torch internal electrode by the way of water cooling, and spoutOr by the way of air cooling, the cooling effect for leading to cutting torch is bad, and the service life of expendable part is low, cut quality differenceProblem.
Invention content
The technical problem to be solved by the present invention is to：It is bad in order to solve cooling effect inside cutting torch in the prior art, it consumesThe problem of service life of part is low, and cut quality is poor now provides a kind of high efficiency and heat radiation formula plasma arc cutting torch.
The technical solution adopted by the present invention to solve the technical problems is：A kind of high efficiency and heat radiation formula plasma arc cutting torch, packetSequentially connected torch body, cutting torch pedestal and pressure cap are included, electrodes base, the electrodes base are inserted in the cutting torch pedestalInterior insulation body is provided between cutting torch pedestal, the interior insulation body is fixed with spout, the electrode bottom close to one end of pressure capThe one end for seating against nearly pressure cap is fixed with the electrode with endoporus, and the electrode extends to the inside of spout, and the pressure cap is set inThe outside of spout offers intake tunnel and exhalant canal on the electrodes base, middle edema with the heart involved is communicated on the intake tunnelPipe, the central water tube extended in the endoporus of electrode, be formed between the outer wall of the central water tube and the inner wall of endoporus withThe electrode water cooling chamber of central water tube connection, is formed with spout water cooling chamber, the electrode water between the outer wall and pressure cap of the spoutCold house is connected with spout water cooling chamber, and the exhalant canal is connected with spout water cooling chamber.
In this programme by the way of interior circulating water, the cooling effect of torch body and key fitment is allowed to reach bestState reduces the consumption of accessory, improves the consistency for the mass cutting for being cut workpiece and reduces the production and application of userCost, specially：Coolant enters from the intake tunnel of electrodes base, then reaches electrode water cooling chamber to electrode through central water tubeWater cooling is carried out, spout water cooling chamber is subsequently flowed into and water cooling is carried out to spout, finally flowed out from the exhalant canal of electrodes base, realized coldBut liquid successively cools down motor and spout.
Specifically, the deflector hole connected with electrode water cooling chamber is offered on the outer wall of the electrode, the interior insulation bodyThe diversion chamber connected with deflector hole is formed between the outer wall of inner wall, the outer wall of electrodes base and electrode, the interior insulation bodyBe formed with inlet opening and apopore between the inner wall of outer wall and cutting torch pedestal, the both ends of the inlet opening respectively with diversion chamber and spraySaliva cold house connects, and the both ends of the apopore connect respectively with spout water cooling chamber and exhalant canal；Pass through deflector hole, diversion chamberAnd the setting of inlet opening, realize coolant flow in electrode water cooling chamber to spout water cooling chamber；By the setting of apopore, realizeCoolant in spout water cooling chamber is back to exhalant canal discharge.
Due to the position where hafnium filament on electrode be generate heat end, the at work position extreme temperatures, forThis, further, the central water tube is threadedly secured in intake tunnel, and the electrode is inlaid with close to one end end of spoutHafnium filament has gap, the portion of the endoporus bottom hole face hafnium filament between the bottom terminal ends of the central water tube and the bottom hole of endoporusPosition has upwardly extended protrusion, the protruding parts in central water tube, wherein, in the protrusion in endoporus is extend intoIn edema with the heart involved pipe, it can allow the fever end of electrode and coolant has the heat dissipation area of bigger, cold and hot liquid be allowed to penetrate into electrode nethermostGenerate heat end, so as to improve the heat dissipation performance of electrode.
Specifically, gas flow of ions channel is offered on the electrodes base, the electrode jacket is equipped with distributor, described interiorGas flow of ions distributor chamber is offered on insulator, between the outer wall of the interior insulation body, the inner wall of spout and the outer wall of distributorBe formed with the first ion-gas flow chamber, be formed between the inner wall of the inner wall of the distributor, the outer wall of electrode and spout second fromSub-stream nozzle room, gas flow of ions dispensing orifice is offered on the distributor, and the gas flow of ions channel connects with gas flow of ions distributor chamberLogical, the gas flow of ions distributor chamber is connected with the first ion-gas flow chamber, and the first ion-gas flow chamber is distributed by gas flow of ionsHole is connected with the second ion-gas flow chamber, and the spout passes through pressure cap, the one end of the spout far from electrode close to one end of pressure capEnd has the central through hole connected with the second ion-gas flow chamber；Gas flow of ions initially enters the ion-gas circulation of electrodes baseThen road enters the first ion-gas flow chamber from gas flow of ions distributor chamber, and pass through the ion of distributor from the first ion-gas flow chamberThe second ion-gas flow chamber is entered after the uniform divided flows in distribution of air flow hole, as cutting gas.
In order to improve cut quality, further, copper housing is arranged with outside the cutting torch pedestal, is arranged with outside the pressure capProtective cover, the copper housing and between protective cover and torch body offer protection air-flow distribution on the cutting torch pedestalRoom is formed with protection air-flow between the inner wall of the copper housing, the inner wall of protective cover, the outer wall of cutting torch pedestal and the outer wall of pressure capRoom, the protection air-flow distributor chamber are connected with protection air-flow room, and the guarantor for having and being connected with protection air-flow room is run through on the protective coverProtect air-flow centre bore, the protection air-flow centre bore and central through hole face；Protective cover is with automatically for plasma in machineThe accessory specially added when chemical industry is made, the quality of cut quality directly depend on spout, it can effective protection spout reduction damageWound, so as to which protective cover be made to play a protective role；Additionally by the setting of protective cover so that forming individual guarantor in the outside of pressure capGas circuit is protected, protection gas enters protection air-flow room from the protection air-flow distributor chamber of cutting torch pedestal, realizes and reaches pressure cap and protective coverInterlayer, finally from the protection air-flow centre bore of protective cover spray, protection cutting workpiece scum splash, enhance cutting power,The two-way air source independent control of protection gas and ion-gas is realized simultaneously, meets the difference to cutting plate thickness and plank material significantlyThe cutting demand of specification condition, makes cutting finer.
Further, the inner wall of the one end of the torch body far from cutting torch pedestal is filled with glue filler, the glueWater filler connects with cutting torch pedestal, and water inlet pipe is communicated on the intake tunnel, outlet pipe is communicated on the exhalant canal,Ion tracheae is communicated on the gas flow of ions channel, protection tracheae, the water inlet are communicated on the protection air-flow distributor chamberPipe, outlet pipe, ion tracheae and protection tracheae both pass through glue filler, and all extend to the outside of torch body, water inlet pipe,Convenient for connecing gas circuit and water route, glue filler can be by water inlet pipe, outlet pipe, ion-gas for outlet pipe, ion tracheae and protection tracheaePipe and protection tracheae are fixed in torch body, while can play the role of sealing.
Further, the inner wall of the torch body is fixed with outer insulator, and the cutting torch pedestal and glue filler are equalIt is separated by the inner wall of outer insulator and torch body, the outer insulator is outwardly protruded close to one end of spout in cutting torch sheetBody, the copper housing, which is connected through a screw thread, to be fixed on outer insulator and protrudes from the position of torch body, and copper housing is mounted on outerOn insulator, exposed copper housing is made to completely cut off with cutting torch built-in electrical insulation, avoids security risk, and when cutting torch worksEven if cutting torch lower end collides workpiece, the phenomenon that will not making to generate short circuit between cutting torch and workpiece, used so as to improve cutting torchReliability.
Specifically, the protective cover is fixed on outside copper by fixed cover and put on.
Preferably, the material of the pressure cap is red copper.
Further, the material of the central water tube is high molecular material.
The beneficial effects of the invention are as follows：The high efficiency and heat radiation formula plasma arc cutting torch of the present invention uses the side of interior circulating waterFormula allows the cooling effect of torch body and key fitment to reach optimum state, reduces the consumption of accessory, improves and is cut workpieceMass cutting consistency and reduce the production and application cost of user, and protect gas and ion-gas can be only using two-way air sourceVertical control meets the cutting demand of the different size condition to cutting plate thickness and plank material significantly, improves the fineness of cutting.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of high efficiency and heat radiation formula plasma arc cutting torch of the present invention；
Fig. 2 is the close-up schematic view of A in Fig. 1.
In figure：1st, torch body, 2, cutting torch pedestal, 3, pressure cap, 4, electrodes base, 4-1, intake tunnel, 4-2, water outlet are logicalRoad, 4-3, gas flow of ions channel, 5, interior insulation body, 5-1, gas flow of ions distributor chamber, 6, spout, 6-1, central through hole, 7, electrode,7-1, deflector hole, 7-2, protrusion, 8, central water tube, 9, electrode water cooling chamber, 10, spout water cooling chamber；
11st, diversion chamber, 12, inlet opening, 13, apopore, 14, hafnium filament, 15, distributor, 15-1, gas flow of ions dispensing orifice,16th, the first ion-gas flow chamber, the 17, second ion-gas flow chamber, 18, copper housing, 19, protective cover, 19-1, protection air-flow centre bore；
20th, protection air-flow distributor chamber, 21, protection air-flow room, 22, glue filler, 23, water inlet pipe, 24, outlet pipe, 25,Ion tracheae, 26, protection tracheae, 27, outer insulator, 28, fixed cover.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only withIllustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention, direction and with reference to (for example,Upper and lower, left and right, etc.) can be only used for helping the description to the feature in attached drawing.Therefore, it is not adopted in restrictive, senseWith detailed description below, and claimed theme is only limited by appended claims and its equivalent formRange.
Embodiment 1
As shown in Figs. 1-2, a kind of high efficiency and heat radiation formula plasma arc cutting torch, including sequentially connected torch body 1, cutting torch bottomSeat 2 and pressure cap 3 is inserted with electrodes base 4 in cutting torch pedestal 2, interior insulation body is provided between electrodes base 4 and cutting torch pedestal 25, interior insulation body 5 is fixed with spout 6 close to one end of pressure cap 3, and electrodes base 4 is fixed with close to one end of pressure cap 3 with endoporusElectrode 7, which is blind hole, and electrode 7 extends to the inside of spout 6, and pressure cap 3 is set in the outside of spout 6, electrodes base 4On offer intake tunnel 4-1 and exhalant canal 4-2, central water tube 8 is communicated on intake tunnel 4-1, central water tube 8 extends toIn the endoporus of electrode 7, the electrode water cooling connected with central water tube 8 is formed between the outer wall of central water tube 8 and the inner wall of endoporusRoom 9, is formed with spout water cooling chamber 10 between the outer wall of spout 6 and pressure cap 3, electrode water cooling chamber 9 connects with spout water cooling chamber 10, goes outAquaporin-4-2 is connected with spout water cooling chamber 10.
Wherein, stainless steel can be used in the material of torch body 1, on the one hand improves the intensity of cutting torch entirety, on the other hand makesCutting torch overall quality is more high-end；The material of pressure cap 3 is red copper, and pressure cap 3 can be used threaded connection and be fixed on cutting torch pedestal 2, andFor fixing spout 6, the interior step surface inside pressure cap 3 is against the between outer land terrace of 6 bottom end of spout, and the upper end of pressure cap 3 is by sealingCircle is sealed with cutting torch pedestal 2, and the lower end of pressure cap 3 is also sealed using sealing ring with spout 6；Electrode 7 is equally solid using being threadedly coupledIt is scheduled on electrodes base 4；Sealing ring is set to be sealed between electrode 7 and interior insulation body 5.
Offer several deflector hole 7-1 connected with electrode water cooling chamber 9 on the outer wall of electrode 7, and deflector hole 7-1 is along electrode7 circumferencial direction is uniformly distributed, be formed between the outer wall of the inner wall of interior insulation body 5, the outer wall of electrodes base 4 and electrode 7 withDeflector hole 7-1 connection diversion chamber 11, be formed between the outer wall of interior insulation body 5 and the inner wall of cutting torch pedestal 2 inlet opening 12 andApopore 13, the both ends of inlet opening 12 connect respectively with diversion chamber 11 and spout water cooling chamber 10, the both ends of apopore 13 respectively withSpout water cooling chamber 10 is connected with exhalant canal 4-2；By the setting of deflector hole 7-1, diversion chamber 11 and inlet opening 12, electrode is realizedCoolant flow in water cooling chamber 9 is to spout water cooling chamber 10；By the setting of apopore 13, realize cold in spout water cooling chamber 10But liquid is back to exhalant canal 4-2 discharges, and deflector hole 7-1 can also play the role of strainer, can block up welding slag when electrode is burntFirmly in the electrode water cooling chamber 9 before deflector hole 7-1, prevent welding slag from will be blocked inside cutting torch.
Central water tube 8 is threadedly secured in intake tunnel 4-1, and electrode 7 is inlaid with hafnium filament close to one end end of spout 614, there is gap, the position of endoporus bottom hole face hafnium filament 14 is prolonged upwards between the bottom terminal ends of central water tube 8 and the bottom hole of endoporusStretching has protrusion 7-2, and protrusion 7-2 is located in central water tube 8, wherein, it extend into center using by the protrusion 7-2 in endoporusIn water pipe 8, it can allow the fever end of electrode 7 and coolant has the heat dissipation area of bigger, cold and hot liquid be allowed to penetrate into electrode 7 nethermostGenerate heat end, so as to improve the heat dissipation performance of electrode 7；The material of central water tube 8 is high molecular material, and high molecular material has insulationAnd heat-resisting quantity, when electrode 7 is burnt, 8 meetings of central water tube of high molecular material are melted by electrode 7, will not generate welding slag,Therefore, the rear afterflow for because of the welding slag that central water tube 8 generates when electrode 7 is burnt, avoiding causing inside cutting torch is effectively avoidedRoad is blocked by welding slag.
Gas flow of ions channel 4-3 is offered on electrodes base 4, distributor 15 is arranged with outside electrode 7, is opened on interior insulation body 5Equipped with gas flow of ions distributor chamber 5-1, is formed between the outer wall of the outer wall of interior insulation body 5, the inner wall of spout 6 and distributor 15One ion-gas flow chamber 16 is formed with the second gas flow of ions between the inner wall of the inner wall of distributor 15, the outer wall of electrode 7 and spout 6Room 17 offers gas flow of ions dispensing orifice 15-1, gas flow of ions channel 4-3 on distributor 15 and connects with gas flow of ions distributor chamber 5-1Logical, gas flow of ions distributor chamber 5-1 is connected with the first ion-gas flow chamber 16, and the first ion-gas flow chamber 16 passes through gas flow of ions dispensing orifice15-1 is connected with the second ion-gas flow chamber 17, and spout 6 passes through pressure cap 3, the one end of spout 6 far from electrode 7 close to one end of pressure cap 3End has the central through hole 6-1 connected with the second ion-gas flow chamber 17；Gas flow of ions initially enters the ion-gas of electrodes base 4Then circulation road 4-3 enters the first ion-gas flow chamber 16 from gas flow of ions distributor chamber 5-1, and is passed through from the first ion-gas flow chamber 16The second ion-gas flow chamber 17 is entered after crossing the uniform divided flows of the gas flow of ions dispensing orifice 15-1 of distributor 15, as cutting gasBody；
Wherein, one end of distributor 15 is against on interior insulation body 5, and the other end is against on the step surface in spout 6, distributorBetween 15 inner wall and electrode 7 and sealing ring is respectively provided between the outer wall of distributor 15 and spout 6 to be sealed.
Copper housing 18 is arranged with outside cutting torch pedestal 2, protective cover 19 is arranged with outside pressure cap 3, copper housing 18 is with being located at protective coverBetween 19 and torch body 1, protection air-flow distributor chamber 20 is offered on cutting torch pedestal 2, the inner wall of copper housing 18, protective cover 19Protection air-flow room 21 is formed between the outer wall of inner wall, the outer wall of cutting torch pedestal 2 and pressure cap 3, protection air-flow distributor chamber 20 is with protectingShield airflow chamber 21 connects, and the protection air-flow centre bore 19-1 for having and being connected with protection air-flow room 21 is run through on protective cover 19, protects gasFlow center hole 19-1 and central through hole 6-1 faces；Protective cover 19 is in order to which plasma specially adds in machine automatically workingThe accessory added, the quality of cut quality directly depend on spout 6, its energy effective protection spout 6 reduces damage, so as to make protectionCover 19 plays a protective role；Additionally by the setting of protective cover 19 so that forming individually protection gas circuit, guarantor in the outside of pressure cap 3Shield gas enters protection air-flow room 21 from the protection air-flow distributor chamber 20 of cutting torch pedestal 2, realizes and reaches pressure cap 3 and protective cover 19Interlayer is finally sprayed from the protection air-flow centre bore 19-1 of protective cover 19, and the scum of protection cutting workpiece splashes, enhancing cutting energyPower, while the two-way air source independent control of protection gas and ion-gas is realized, meet significantly to cutting plate thickness and plank materialThe cutting demand of different size condition, makes cutting finer；
The inner wall of the one end of torch body 1 far from cutting torch pedestal 2 is filled with glue filler 22, and glue filler 22 is with cuttingTorch pedestal 2 connects, and water inlet pipe 23 is communicated on intake tunnel 4-1, outlet pipe 24, gas flow of ions are communicated on exhalant canal 4-2Ion tracheae 25 is communicated on channel 4-3, protection tracheae 26, water inlet pipe 23, outlet pipe are communicated on protection air-flow distributor chamber 2024th, ion tracheae 25 and protection tracheae 26 both pass through glue filler 22, and all extend to the outside of torch body 1, water inlet pipe23rd, outlet pipe 24, ion tracheae 25 and protection tracheae 26 be convenient for connecing gas circuit and water route, glue filler 22 can by water inlet pipe 23,Outlet pipe 24, ion tracheae 25 and protection tracheae 26 are fixed in torch body 1, while can play the role of sealing.
The inner wall of torch body 1 is fixed with outer insulator 27, and cutting torch pedestal 2 and glue filler 22 pass through outer insulator27 separate with the inner wall of torch body 1, and outer insulator 27 is outwardly protruded close to one end of spout 6 in torch body 1, copper housing 18It is connected through a screw thread and is fixed on outer insulator 27 and protrudes from the position of torch body 1, copper housing 18 is mounted on outer insulator 27On, exposed copper housing 18 is made to completely cut off with cutting torch built-in electrical insulation, security risk is avoided, even and if when cutting torch worksCutting torch lower end collides workpiece, the phenomenon that will not making to generate short circuit between cutting torch and workpiece, so as to improve that cutting torch uses canBy property.
Protective cover 19 is fixed on by fixed cover 28 on copper housing 18, and fixed cover 28, which is connected through a screw thread, is fixed on copper housingOn 18, the upper end of protective cover 19 has between outer land terrace, and the lower end of fixed cover 28 has interior step surface, passes through the interior platform of fixed cover 28Terrace is against the between outer land terrace of protective cover 19, is pressed on copper housing 18 so as to fulfill by protective cover 19, that is, realizes protective cover 19Fixation.
Above-mentioned high efficiency and heat radiation formula plasma arc cutting torch when in use, a cooling water channel of cutting torch and two gas circuits it is specificFlow direction is as follows：
Cooling water channel：Coolant enters the intake tunnel 4-1 of electrodes base 4 from extraneous water inlet pipe 23, in then passing throughEdema with the heart involved pipe 8 reaches electrode water cooling chamber 9 and carries out water cooling to electrode 7, then followed by deflector hole 7-1, diversion chamber 11 and inlet opening12 reach spout water cooling chamber 10 carries out water cooling to spout 6, is then back to exhalant canal 4-2 through apopore 13, and logical from water outletRoad 4-2 is discharged through outlet pipe 24；
Ion gas circuit：Gas flow of ions enters the gas flow of ions channel 4-3 of electrodes base 4 from extraneous ion tracheae 25, soEnter the first ion-gas flow chamber 16 from gas flow of ions distributor chamber 5-1 afterwards, and from the first ion-gas flow chamber 16 by distributor 15The second ion-gas flow chamber 17 is entered after the uniform divided flows of gas flow of ions dispensing orifice 15-1, as cutting gas, what electrode 7 generatedIon arc is focused on by the central through hole 6-1 of spout 6 to be sprayed, so as to generate high-energy cutting ion arc；
Protect gas circuit：Gas is protected from the extraneous protection air-flow distributor chamber 20 that tracheae 26 is protected to enter cutting torch pedestal 2, and fromThe protection air-flow distributor chamber 20 of cutting torch pedestal 2 enters protection air-flow room 21, realizes the interlayer for reaching pressure cap 3 and protective cover 19,It is finally sprayed from the protection air-flow centre bore 19-1 of protective cover 19, scum during cutting workpiece to be protected to splash, and enhancing is cutCut ability.
Above-mentioned desirable embodiment according to the present invention is enlightenment, and by above-mentioned description, relevant staff is completeCan various changes and amendments be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technicalRange is not limited to the content on specification, it is necessary to determine its technical scope according to right.