CN2147925Y

CN2147925Y - Multiple electric welder

Info

Publication number: CN2147925Y
Application number: CN 92241754
Authority: CN
Inventors: 张子元
Original assignee: Coal Dressing Equipment Fittings Factory Shuangyashan Mining Industry Bureau (c
Current assignee: Coal Dressing Equipment Fittings Factory Shuangyashan Mining Industry Bureau (c
Priority date: 1992-11-23
Filing date: 1992-11-23
Publication date: 1993-12-01
Anticipated expiration: 2002-11-23

Abstract

The utility model relates to a multiple heads electric welder used in the industry of mechanical processing. The multiple heads electric welder belongs to an alternating-current hand arc welder. The multiple heads electric welder makes a transformer separate off a reactor, making every reactor form an independent electric welding loop. The primary side electric voltage is 380 volts. The secondary side electric voltage is 65 volts. One end of the secondary side lead wire connects with the earth, and the other end is connected with a plurality of adjustable iron-core reactor coils which are parallel. The multiple heads can be welded at the same time, and the multiple heads don't affect each other. The adjusting range of the welding current is 70 to 500A. The transformer capacity of the welder is the half of the capacity of an ordinary alternating-current welder. The multiple heads electric welder has small volume and convenient use.

Description

Multiple electric welder

A kind of multiwelding machine is widely used in mechanical processing industry, belongs to exchanging a kind of of manual arc welder.

Present common interchange hand arc electric welding machine, in order to obtain the external characteristics that descends, arc welding transformer all is designed to high induction reactance, utilizes the pressure drop on the induction reactance, makes transformer obtain dropping characteristic.And obtain the method for high induction reactance, and generally be current-limiting reactor or reach in the secondary side loop of transformer by the leakage field that increases transformer itself, make transformer and reactor form unified loop.Connect a soldering turret on every electric welding machine, when work in-process needs several people or tens of people to weld simultaneously, several or tens of electric welding machines just must be set, and every electric welding machine is all heavy, shift from one place to another very inconvenient, in the confined space, be difficult to arrange many electric welding machines, will influence operating efficiency for this reason.Automatically the electricity that send of electric welding machine must adopt special control loop, the loaded down with trivial details cost height of system simultaneously.

The purpose of this utility model will provide a kind of need an electric welding machine exactly, itself is furnished with many multiwelding machine of soldering turret.

The purpose of this utility model is achieved in that it is made up of transformer and reactor, it is characterized in that transformer and reactor are separated, make each reactor constitute an independently electric welding loop, 380 volts of primary side voltages, 65 volts of secondary side voltages, secondary side lead-out wire one end ground connection, the other end connects with a plurality of adjustable iron core reactor coil of parallel connection, its automatic power transmission device is by Magnetic contactor, the over power relay normally closed contact, Magnetic contactor coil and power supply starting button are in series, by Magnetic contactor power supply " A " phase, " O " receives on 220 volts of alternating currents mutually, and is provided with the electric welder the special latch of line be attached to working site welding power supply socket on the power supply starting button.

Description of drawings

Fig. 1 is the utility model schematic diagram

Fig. 2 send electrical schematic diagram automatically for the utility model

Below in conjunction with accompanying drawing the utility model is described in further detail:

With six electric welding machines is example (can arrange more number as required), according to A.C. welder arcing voltage and keep-alive voltage requirement, 25kVA when loading with reference to common A.C. welder 100%, 32.5kVA parameter during 65% load, design single-phase transformer its capacity when 100% load is 75kVA.At 380 volts of side joints, secondary side voltage is 65 volts, secondary lead-out wire one end ground connection, and the other end connects with six adjustable iron core reactor coils in parallel.

Its transformer adopting stairstepping iron core column, coil adopts bare copper wire, makes layer insulation with batten, makes coil constitute good ventilation cooling condition with the dovetail pad as turn-to-turn insulation.Therefore the current density of coil and the magnetic flux density of iron core all are higher than the common electrical welding machine.

Because electric welding sparking moment reactor winding does not have electric current to pass through, so there is not the reactance pressure drop, satisfies the requirement of 65 volts of voltages of the starting the arc.Reactance coil produces impedance voltage drop by electric current on reactor after the welding starting the arc, keeps about 30 volts keep-alive voltage to enter normal welding.Because transformer secondary keeps its secondary voltage drop of hardware features in 5%, six soldering tips can weld simultaneously to reconcile separately and be independent of each other.

Welding current can be adjusted iron core air gap (being the air gap) change resistance value by adjusting reactor, and the change impedance voltage drop reaches the purpose of stepless adjustment welding current, and the welding current adjusting range is at 70～500A.

It is to constitute by electronic component and relay to control back specially-Lu that existing electric welding machine send electricity automatically.The utility model does not then need electronic component and relay, utilize Magnetic contactor 1, over power relay normally closed contact 2, magnetic force contact coil 3 and power supply starting button 4 to be in series, receive mutually on 220 volts of alternating currents by Magnetic contactor power supply " A " phase, " O ", and on the power supply starting button, be provided with the electric welder the special latch of line 6 be attached to working site welding power supply socket 5.

The utlity model has following distinguishing feature:

1, because Circuit Fault on Secondary Transformer keeps hardware features, its pressure drop is independent of each other so a plurality of head can weld simultaneously in 5%;

2,, make the welding current adjusting range at 70～500A by stepless adjustment;

3, this multiwelding machine transformer capacity only be equivalent to common A.C. welder capacity and 1/2nd, make multiwelding machine for this reason and save half than the material of welding machine such as common electrical such as capacity such as manufacturings grade;

4, this multiwelding machine occupies little space, concentrates manageability than the common electrical welding machine of equivalent amount;

5, its multiwelding machine power line and switch only with a cover, are convenient to realize that electric welding machine work send automatically;

6, in the power distribution frames of all packing into such as a plurality of REgulatable reactors, transformer and switch, the space floor space is more much smaller than common electrical welding machine;

7, be example with six electric welding machines, buy one six electric welding machine ratios and buy six Daeporis energisings welding machine and reduce expenses 50%.

Claims

1, a kind of multiwelding machine of forming by transformer, reactor, it is characterized in that transformer and reactor are separated, make each reactor constitute an independently electric welding loop, 380 volts of primary side voltages, 65 volts of secondary side voltages, secondary side lead-out wire one end ground connection, the other end connects with a plurality of adjustable iron core reactor coil of parallel connection.

2, multiwelding machine as claimed in claim 1, it is characterized in that automatic power transmission device is in series by Magnetic contactor, over power relay normally closed contact, Magnetic contactor coil and power supply starting button, receive mutually on 220 volts of alternating currents by Magnetic contactor power supply " A " phase, " O ", and on the power supply starting button, be provided with the electric welder the special latch of line be attached to working site welder power socket.