CN102172795A - Eddy current evaporator component of water vapor plasma spray gun - Google Patents
Eddy current evaporator component of water vapor plasma spray gun Download PDFInfo
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- CN102172795A CN102172795A CN2011100218116A CN201110021811A CN102172795A CN 102172795 A CN102172795 A CN 102172795A CN 2011100218116 A CN2011100218116 A CN 2011100218116A CN 201110021811 A CN201110021811 A CN 201110021811A CN 102172795 A CN102172795 A CN 102172795A
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- eddy current
- rod
- cathode rod
- earthenware
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Abstract
The invention relates to an eddy current evaporator component of a water vapor plasma spray gun, which comprises an evaporator, ceramic tubes and a cathode rod component, wherein the evaporator consists of an evaporation rod and an eddy current evaporator cover, the front end of the eddy current evaporator cover is connected with an anode nozzle, the cathode rod component comprises a cathode head and a cathode rod, the rear part of the evaporation rod is sleeved with a cathode pressure spring and extends out of a rear sealing cover, the external tube walls of the two ceramic tubes and hollow bodies in the tubes are all in round step shape; each hollow body is divided into a big hole and a central positioning hole, and the inside diameter of the central positioning hole is in clearance fit with the cathode rod; the tail end of the cathode rod is insertion connection with a cathode tail, and the cathode tail is embedded in a starting button; and the evaporation rod, the ceramic tubes and the cathode rod share the same axis. The eddy current evaporator component can ensure the concentricity of the spray nozzle, the cathode head, the evaporation rod and the cathode rod, and keep the evaporation rod and the cathode rod at a maximum insulation distance, and quick-wear parts can be changed conveniently.
Description
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Technical field
The present invention relates to the core component of portable steam plasma gun, be specifically related to a kind of water vapour plasma gun eddy current evaporator assemblies.
Background technology
Steam plasma gun and power supply main frame match, and can finish basic functions such as metal or nonmetallic cutting and welding.Steaming the eddy current evaporator assemblies in the spray gun is the core component of steam plasma gun, and its structural design directly influences the duty of product.Steaming eddy current evaporator assemblies of the prior art is made up of parts such as nozzle, evaporation bar, earthenware, cathode taps, cathode rod and concentric sheet springs.As shown in Figure 1, 2.Between nozzle and negative electrode, add dc high voltage during work, make between anode nozzle and the negative electrode high-voltage breakdown discharge can produce plasma arc.For making plasma arc that higher current density and arc stiffness be arranged.The structure of evaporator assemblies will satisfy following requirement:
1, guarantees that nozzle, evaporation bar and cathode rod are coaxial;
2, guarantee nozzle, evaporation bar and the isolation of cathode rod good insulation;
3, rational in infrastructure, consumable accessory is changed convenient, good manufacturability.
And the existing earthenware that steams in the eddy current evaporator assemblies adopts the long earthenware of straight pipe type, is positioned over to evaporate between bar and the cathode rod, guarantees both isolation of insulating.In order to guarantee the concentricity of earthenware and cathode rod, two concentric sheet springs are set between earthenware inwall and cathode rod.The cathode rod afterbody has screw thread, screws two nuts and makes the negative electrode stage clip stressed, keeps the fixed range of cathode taps and nozzle.There is lug plate to be used to connect high-tension electricity between two nuts.
The defective of this structure is:
1, the sheet spring very easily lost efficacy with one heart.The sheet spring is under the high temperature for a long time, and the long slightly i.e. annealing of work is followed the string, and can not guarantee that nozzle, evaporation bar and cathode rod are coaxial, causes the evaporator assemblies can't operate as normal.
2, cathode assembly dismounting difficulty.Because of the inefficacy of the concentric sheet spring of consumable accessory and the baked erosion of cathode taps, often to change cathode rod.This structure must be opened the spray gun shell, screws off the cathode rod nut high-voltage line is taken off, and can pull down cathode rod.
Summary of the invention
At above-mentioned problems of the prior art, the object of the present invention is to provide a kind of water vapour plasma gun eddy current evaporator assemblies, it can guarantee to evaporate bar and cathode rod has good insulation performance performance and concentricity, and consumable accessory is changed conveniently.
The technical scheme that the present invention is taked for its purpose of realization: a kind of water vapour plasma gun eddy current evaporator assemblies, comprise evaporimeter, earthenware and cathode rod assembly, described evaporimeter is made of evaporation bar and eddy current evaporimeter cap, described eddy current evaporimeter cap front end connects anode nozzle, described cathode rod assembly comprises cathode taps and cathode rod, evaporation bar rear portion is with the negative electrode stage clip and stretches out the back seal cover, described earthenware is provided with two, and the ducted body in earthenware outer tube wall and the pipe is all rounded step-like; Described ducted body is divided into big hole and center positioning hole two parts, the internal diameter of described center positioning hole and cathode rod matched in clearance; The end of described cathode rod and negative electrode tail are pegged graft, and described negative electrode tail embeds in the start button endoporus; Described evaporation bar, earthenware and cathode rod three's axle is coaxial.Two described earthenware shape sizes are identical, and its center positioning hole partly is oppositely arranged; Be arranged on the big hole and back seal cover grafting sealing of the earthenware at rear portion.Described negative electrode tail one side is established lock-screw, and corresponding opposite side connects the cathode high voltage line with screw.The external form of described start button (10) is a ledge structure.
Beneficial effect of the present invention: can guarantee the concentricity of nozzle, cathode taps, evaporation bar and cathode rod, and make the insulation spacing that keeps maximum between evaporation bar and the cathode rod, and consumable accessory is changed conveniently.
Description of drawings
The present invention is further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a water vapour plasma gun eddy current evaporator assemblies schematic diagram of the prior art;
Fig. 2 is the cross-sectional schematic of the B-B among Fig. 1;
Fig. 3 is a water vapour plasma gun eddy current evaporator assemblies schematic diagram of the present invention;
Fig. 4 is the cross-sectional schematic of the A-A among Fig. 3;
Fig. 5 is a cathode rod assembly schematic diagram;
Fig. 6 is Fig. 5 A-A cross-sectional schematic;
Fig. 7 is the earthenware cross-sectional schematic;
Fig. 8 is a negative electrode tail cross-sectional schematic;
Fig. 9 is a negative electrode tail schematic perspective view;
Figure 10 is the start button schematic perspective view;
Figure 11 is the start button structural representation;
Figure 12 is Figure 11 A-A cross-sectional schematic;
Figure 13 is Figure 11 B-B cross-sectional schematic.
Among the figure 1, the evaporation bar, 2, earthenware, 3, eddy current evaporimeter cap, 4, anode nozzle, 5, cathode taps, 6, the back seal cover, 7, the negative electrode tail, 8, cathode rod, 9, the negative electrode stage clip, 10, start button, 11, sheet spring with one heart, 12, nut, 13, lock-screw.
The specific embodiment
Shown in Fig. 3,4, the present invention includes evaporimeter, earthenware 2 and cathode rod assembly.Evaporimeter is made of evaporation bar 1 and eddy current evaporimeter cap 3, and eddy current evaporimeter cap 3 front ends connect anode nozzle 4.The cathode rod assembly is made up of cathode taps 5, cathode rod 8, negative electrode tail 7, negative electrode stage clip 9 and start button 10, shown in Fig. 5,6.Cathode rod 8 front ends are established cathode taps 5, and both are threaded.Negative electrode stage clip 9 is enclosed within evaporation bar rear portion and stretches out back seal cover 6.The front end of the back seal cover of insulation embeds the earthenware of evaporation rod rear end, is provided with the sealing of O type circle therebetween, makes evaporation bar and back seal cover keep sealing.Guarantee that hydraulic fluid does not enter in the evaporimeter.Earthenware 2 is provided with two.Two earthenware 2 shape sizes are identical, and its center positioning hole partly is oppositely arranged.Ducted body in earthenware outer tube wall and the pipe is all rounded step-like; Described ducted body is divided into big hole and center positioning hole two parts, the internal diameter of center positioning hole and cathode rod matched in clearance.The accurate matched in clearance of the endoporus of cathode rod and earthenware has guaranteed that cathode rod is coaxial with the axle of evaporimeter.Big circular decometer on two earthenware outer tube walls is connected on evaporation bar 1 two ends, and the earthenware structure is seen Fig. 7.Cathode rod 8 passes from the center positioning hole of two earthenwares, through after seal cover 6 endoporus pass.The centre bore of the end of cathode rod 8 and negative electrode tail 7 is pegged graft.Lock-screw 13 is established in negative electrode tail 7 sides, is used for locking cathode rod 8, makes cathode rod 8 and negative electrode tail 7 secure fixation.Lock-screw 13 corresponding opposite sides connect the cathode high voltage line with screw, connect power supply.The negative electrode stern construction is seen shown in Fig. 8,9.Negative electrode tail 7 embeds in start button 10 endoporus.The endoporus of start button and profile are non-circular form.In the time of in cathode assembly is installed in the spray gun shell, cathode rod can move vertically, can not rotate.The external form of described start button 10 is a ledge structure, and the profile that embeds the part of negative electrode tail is a non-cylindrical, and stressed when start button, cathode assembly is parallel motion vertically.
The start button structure is seen Figure 10-13.Said structure has guaranteed that evaporation bar 1, earthenware 2 and cathode rod 8 threes' axle is coaxial.
Cathode taps of the present invention is established internal thread and is connected with cathode rod, is guaranteeing cathode rod intensity simultaneously, and also having guaranteed has maximum insulation spacing between cathode rod and the evaporation bar, is convenient to dismounting again.The present invention makes evaporation bar 1, earthenware 2 and cathode rod 8 threes' axle coaxial, also makes between cathode rod and the evaporation bar, cathode rod and the back has excellent sealing performance between the seal cover and the cathode taps in the assembly is effectively cooled off.
Claims (4)
1. water vapour plasma gun eddy current evaporator assemblies, comprise evaporimeter, earthenware (2) and cathode rod assembly, described evaporimeter is made of evaporation bar (1) and eddy current evaporimeter cap (3), described eddy current evaporimeter cap (3) front end connects anode nozzle (4), described cathode rod assembly comprises cathode taps (5) and cathode rod (8), evaporation bar rear portion is with negative electrode stage clip (9) and stretches out back seal cover (6), it is characterized in that: described earthenware (2) is provided with two, and the ducted body in earthenware outer tube wall and the pipe is all rounded step-like; Described ducted body is divided into big hole and center positioning hole two parts, the internal diameter of described center positioning hole and cathode rod matched in clearance; The end of described cathode rod (8) and negative electrode tail (7) are pegged graft, and described negative electrode tail (7) embeds in start button (10) endoporus; Described evaporation bar (1), earthenware (2) and cathode rod (8) three's axle is coaxial.
2. water vapour plasma gun eddy current evaporator assemblies according to claim 1, it is characterized in that: two described earthenwares (2) shape size is identical, its center positioning hole partly is oppositely arranged, back seal cover (6) inserts and is arranged in the big hole of rear portion earthenware (2), and sealing.
3. water vapour plasma gun eddy current evaporator assemblies according to claim 1 is characterized in that:
Described negative electrode tail one side is established lock-screw (13), and corresponding opposite side connects the cathode high voltage line with screw.
4. water vapour plasma gun eddy current evaporator assemblies according to claim 1 is characterized in that:
The external form of described start button (10) is a ledge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100218116A CN102172795A (en) | 2011-01-19 | 2011-01-19 | Eddy current evaporator component of water vapor plasma spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100218116A CN102172795A (en) | 2011-01-19 | 2011-01-19 | Eddy current evaporator component of water vapor plasma spray gun |
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| Publication Number | Publication Date |
|---|---|
| CN102172795A true CN102172795A (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100218116A Pending CN102172795A (en) | 2011-01-19 | 2011-01-19 | Eddy current evaporator component of water vapor plasma spray gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533736A (en) * | 2013-10-21 | 2014-01-22 | 芜湖鼎恒材料技术有限公司 | Rotary guide rod of auto-ignition type plasma gun |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264897A (en) * | 1987-04-20 | 1988-11-01 | Osaka Denki Co Ltd | Manufacturing method of plasma electrode |
| CN1448223A (en) * | 2003-04-28 | 2003-10-15 | 西安交通大学 | Hollow cathode central axial powder-feeding plasma spraying gun |
| CN2807699Y (en) * | 2005-07-06 | 2006-08-16 | 张旭 | Heavy current plasma welding gun |
| US20070175871A1 (en) * | 2006-01-31 | 2007-08-02 | Glass Expasion Pty Ltd | Plasma Torch Assembly |
| CN201291351Y (en) * | 2008-12-01 | 2009-08-19 | 合肥京世建电子科技有限公司 | Portable water vapour plasma spray gun |
| JP2010137266A (en) * | 2008-12-14 | 2010-06-24 | Nippon Steel & Sumikin Welding Co Ltd | Insert chip and plasma torch |
| CN201988834U (en) * | 2010-10-29 | 2011-09-28 | 合肥京世建电子科技有限公司 | Ceramic tube used for water vapour plasma spray gun |
| CN202045445U (en) * | 2011-01-19 | 2011-11-23 | 合肥京世建电子科技有限公司 | Eddy-current evaporator assembly of water vapor plasma spray gun |
-
2011
- 2011-01-19 CN CN2011100218116A patent/CN102172795A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264897A (en) * | 1987-04-20 | 1988-11-01 | Osaka Denki Co Ltd | Manufacturing method of plasma electrode |
| CN1448223A (en) * | 2003-04-28 | 2003-10-15 | 西安交通大学 | Hollow cathode central axial powder-feeding plasma spraying gun |
| CN2807699Y (en) * | 2005-07-06 | 2006-08-16 | 张旭 | Heavy current plasma welding gun |
| US20070175871A1 (en) * | 2006-01-31 | 2007-08-02 | Glass Expasion Pty Ltd | Plasma Torch Assembly |
| CN201291351Y (en) * | 2008-12-01 | 2009-08-19 | 合肥京世建电子科技有限公司 | Portable water vapour plasma spray gun |
| JP2010137266A (en) * | 2008-12-14 | 2010-06-24 | Nippon Steel & Sumikin Welding Co Ltd | Insert chip and plasma torch |
| CN201988834U (en) * | 2010-10-29 | 2011-09-28 | 合肥京世建电子科技有限公司 | Ceramic tube used for water vapour plasma spray gun |
| CN202045445U (en) * | 2011-01-19 | 2011-11-23 | 合肥京世建电子科技有限公司 | Eddy-current evaporator assembly of water vapor plasma spray gun |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533736A (en) * | 2013-10-21 | 2014-01-22 | 芜湖鼎恒材料技术有限公司 | Rotary guide rod of auto-ignition type plasma gun |
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Owner name: SHANGHAI JINGSHIJIAN ELECTRONIC TECHNOLOGY CO., LT Free format text: FORMER OWNER: HEFEI JINGSHIJIAN ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20120227 |
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Free format text: CORRECT: ADDRESS; FROM: 230088 HEFEI, ANHUI PROVINCE TO: 200433 YANGPU, SHANGHAI |
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Effective date of registration: 20120227 Address after: 200433, room 6, No. 932, Lane 401, Xiangyin Road, Shanghai, Yangpu District Applicant after: Shanghai Jing Jing Jian Electronic Technology Co., Ltd. Address before: 414 room 230088, center building, 605 Mount Huangshan Road, Hefei high tech Zone, Anhui, China Applicant before: Hefei Jingshijian Electronic Technology Co., Ltd. |
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Application publication date: 20110907 |