CN204603540U - Rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine - Google Patents

Abstract

The utility model discloses a kind of rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine, have by gasoline engine driven three-phase rare-earth permanent-magnet generator, the power supply circuits of powering to direct current electric power tools and welding welding circuit, power supply circuits are three-phase bridge rectifier circuit, three-phase bridge rectifier circuit is connected to rare earth permanent-magnetic generator, welding circuit has current regulating circuit and the three-phase bridge rectifier circuit as rectifying part, current regulating circuit is made up of controllable impedance, current regulating circuit one end is connected to rare earth permanent-magnetic generator, the other end is connected to the three-phase bridge rectifier circuit as rectifying part.The utility model Electricity generating welder volume is little, lightweight, convenient carrying; Unique Current adjustment mechanism, makes its work more stable, extends sustainable working time and service life simultaneously; Export independently 220V direct current simultaneously, can be direct current electric power tools and power, facilitate other DC tools electricity consumption in the wild, be applicable to the long-time welding job in field.

Description

Rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine

Technical field

The utility model relates to rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine.

Background technology

Along with the development of China's economy, Large Infrastructure Projects construction project increases year by year, as: the construction of power transmission and transformation net steel tower, water distributing network construction, highway, railway separation net are installed etc., thing followed engineering first-aid repair also increases thereupon, as: foreign-going ship is met an urgent need repair welding operation, the construction of offshore oil drilling platform and repairing, the field rapid-maintenance of mechanized troop, the regional weld job of normal domestic non-transformer etc., these operations are all more and more applied to the internal combustion engine Electricity generating welder relying on self generating technology.

Functionally, internal combustion engine Electricity generating welder not only will equally meet the requirement of different welding procedure from common welding machine, bear great national economy engineering, and under working condition that it is complicated, severe to the performance of equipment, light, durable, resist adverse circumstances, easy to operate and facility moves etc., and multiple requirements is stricter.

Conventional electric power generation electric welding machine adopts common permeability magnetic material to make generator, make that the volume of generator is large, heaviness, complex structure, efficiency are low, a kind of power-frequency voltage that provides, the electric arc produced after rectification is unstable, particularly very easily current interruption during small area analysis welding, have a strong impact on welding quality, the problems such as slag inclusion, crackle, bubble happen occasionally, and the structure of its control set for adjusting is that electric current is difficult to realize stable output.

The shortcoming that existing portioned product and patent exist for conventional electric power generation electric welding machine is improved.Have and volume is reduced, weight saving, make to move more flexibly; There is digital Electricity generating welder, alternating current and direct current can be exported simultaneously, substantially increase the practicality of Electricity generating welder; Also have the generating of non-maintaining rare earth permanent magnet to be electric welding machine, while volume reduces weight saving, durable in use, the ability resisting adverse circumstances significantly promotes; Also have the dual-purpose machine of a kind of rare earth permanent magnet electricity generation and electric welding, can carry out three-phase or Six-phase rectifier, by regulating coiling access to withdraw change magnetic potential, thus change the size of electric current, job stability improves.

Part existing product recited above and patent, carried out the improvement of every aspect to conventional electric power generation electric welding machine, and all very effective.But also there are some problems, due to the reason such as governor motion, internal structure, the long working under making it can not adapt to field extreme environment very well, reliability is relatively poor, works long hours in the wild, easily goes wrong, and brings unnecessary loss to construction.The dual-purpose machine of rare earth permanent magnet electricity generation and electric welding described in the preceding paragraph, change the access of winding wire by copper contact and exit change magnetic potential adjustment electric current, although Current adjustment mode changes, copper contact slips into for a long time and skids off, easy loose contact, still cannot ensure the stability of work preferably.

Utility model content

The purpose of this utility model is exactly to solve the problem, and provides a kind of rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine.

To achieve these goals, the utility model adopts following technical scheme: a kind of rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine, have by gasoline engine driven three-phase rare-earth permanent-magnet generator, the power supply circuits of powering to direct current electric power tools and welding welding circuit, power supply circuits are three-phase bridge rectifier circuit, three-phase bridge rectifier circuit is connected to rare earth permanent-magnetic generator, welding circuit has current regulating circuit and the three-phase bridge rectifier circuit as rectifying part, current regulating circuit is made up of three controllable impedances in parallel, current regulating circuit one end is connected to rare earth permanent-magnetic generator, the other end is connected to the three-phase bridge rectifier circuit as rectifying part.

Preferably: current regulating circuit has casing, casing top arranges roll adjustment screw, roll adjustment screw head arranges Current adjustment dish, bottom arranges sliding support plate, sliding support plate is arranged some guide pillars, guide pillar coordinates with the guide pillar sleeve be arranged on casing, sliding support plate can be moved up and down along guide pillar sleeve direction, three upper end iron cores are set bottom sliding support plate, three lower end iron cores with winding are set in casing, regulate Current adjustment dish to regulate the distance between upper end iron core and lower end iron core, in order to regulate size of current.

Preferably: the winding on the iron core of lower end has three binding posts, be respectively lead-in clamp, output wiring terminal and middle output wiring terminal, between lead-in clamp and output wiring terminal, between lead-in clamp and middle output wiring terminal, form one-level respectively and export gear.

Compared with prior art, the utility model has following beneficial effect: the utility model Electricity generating welder volume is little, lightweight, convenient carrying; Unique Current adjustment mechanism, makes its work more stable, extends sustainable working time and service life simultaneously; Export independently 220V direct current simultaneously, can be direct current electric power tools and power, facilitate other DC tools electricity consumption in the wild, be applicable to the long-time welding job in field.

Accompanying drawing explanation

Fig. 1 is embodiment middle rare earth magneto intermediate frequency DC generation electric welding machine overall schematic.

Fig. 2 is Current adjustment mechanism (controllable impedance) schematic three dimensional views of embodiment middle rare earth magneto intermediate frequency DC generation electric welding machine.

Fig. 3 is Current adjustment winding schematic diagram in embodiment.

Detailed description of the invention

The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.

See Fig. 1 to 3, a kind of rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine, there is the three-phase rare-earth permanent-magnet generator 200 driven by gasoline engine 100, the power supply circuits D powered to direct current electric power tools and welding welding circuit, power supply circuits D is three-phase bridge rectifier circuit, three-phase bridge rectifier circuit is connected to rare earth permanent-magnetic generator 200, welding circuit has current regulating circuit B and the three-phase bridge rectifier circuit C as rectifying part, current regulating circuit B is made up of three controllable impedances in parallel, current regulating circuit B mono-end is connected to rare earth permanent-magnetic generator 200, the other end is connected to the three-phase bridge rectifier circuit C as rectifying part.

Current regulating circuit B has casing 4, casing 4 top arranges roll adjustment screw 2, roll adjustment screw 2 top arranges Current adjustment dish 1, bottom arranges sliding support plate 5, sliding support plate 5 is arranged some guide pillars 3, guide pillar 3 coordinates with the guide pillar sleeve 8 be arranged on casing 4, sliding support plate can be moved up and down along guide pillar sleeve direction, three upper end iron cores 6 are set bottom sliding support plate 5, three lower end iron cores 7 with winding are set in casing 4, regulate Current adjustment dish to regulate the distance between upper end iron core and lower end iron core, in order to regulate size of current.

Winding on lower end iron core 7 has three binding posts, is respectively lead-in clamp, output wiring terminal and middle output wiring terminal, between lead-in clamp and output wiring terminal, between lead-in clamp and middle output wiring terminal, forms one-level respectively and exports gear.

Power generation part drives three-phase rare-earth permanent-magnet generator to export the three-phase alternating current that two class frequencys are 400 ~ 600HZ by gasoline engine, one group of alternating current provides big current to welding circuit, but voltage is lower, for welding, another group alternating current provides small electric stream to power supply circuits, but voltage is higher, for direct current electric power tools is powered after rectification; Current adjustment part is made up of controllable impedance, low-voltage three-phase alternating current electrical connection controllable impedance, and controllable impedance divides two grades, by changing air gap between iron core, changing winding induction reactance, regulating welding current size; Rectifying part adopts three-phase bridge rectification filter circuit, is that direct current exports, for related device provides dc source by intermediate frequency three-phase alternating current electric rectification.

This utility model innovative point is the adjustment of inductance mode that Current adjustment part adopts, this Current adjustment part is divided into two grades, one grade exports the lower direct current welding current of 50-120A, one grade exports the higher direct current welding current of 120-210A, its specific implementation form of adjustment of different gear is see accompanying drawing, be fixed on by lower end iron core 7 in casing 4, upper end iron core 6 is fixed in sliding support plate 5.Sliding support plate 5 is fixedly connected with guide pillar 3, and guide pillar 3 coordinates with guide pillar sleeve 8, and sliding support plate 5 can be moved up and down along guide pillar sleeve 8 direction.Sliding support plate 5 coordinates with the roll adjustment screw 2 at casing 4 support section center, roll adjustment screw is fixedly connected with Current adjustment dish 1, roll adjustment screw 2 is driven to rotate by rotating Current adjustment dish 1, sliding support plate 5 is moved up and down, also just have adjusted the clearance distance between upper end iron core 6 and lower end iron core 7, apart from change, controllable impedance winding magnetic strength is resisted to change, electric current also changes thereupon, so just achieves the adjustment of size of current.

For clearer expression Current adjustment principle succinctly, the schematic plan view of controllable impedance in casing 4 as shown in Figure 3.Controllable impedance winding lower end iron core 7 is wound around coiling 9, coiling 9 has three joints (binding post), corresponding different gears is (between lead-in clamp and output wiring terminal, between lead-in clamp and middle output wiring terminal, form one-level respectively and export gear), after gear is determined, corresponding two joints pass into medium frequency alternating current, winding produces magnetic strength and resists, upper end iron core 6 moves within the specific limits along the direction of haircut shown in figure, change winding magnetic conductivity, magnetic strength is anti-to be changed thereupon, and then regulates the welding current size of respective notch.

The foregoing is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited in above-mentioned embodiment, and every technical scheme belonging to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, the some improvement carried out under the prerequisite not departing from principle of the present utility model, these improvement also should be considered as protection domain of the present utility model.

Claims (3)

1. a rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine, has the three-phase rare-earth permanent-magnet generator (200) driven by gasoline engine (100), it is characterized in that, also there are the power supply circuits (D) and welding welding circuit of powering to direct current electric power tools, power supply circuits (D) are three-phase bridge rectifier circuit, three-phase bridge rectifier circuit is connected to rare earth permanent-magnetic generator (200), welding circuit has current regulating circuit (B) and the three-phase bridge rectifier circuit (C) as rectifying part, current regulating circuit (B) is made up of three controllable impedances in parallel, current regulating circuit (B) one end is connected to rare earth permanent-magnetic generator (200), the other end is connected to the three-phase bridge rectifier circuit (C) as rectifying part.

2. rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine according to claim 1, it is characterized in that: current regulating circuit (B) has casing (4), casing (4) top arranges roll adjustment screw (2), roll adjustment screw (2) top arranges Current adjustment dish (1), bottom arranges sliding support plate (5), sliding support plate (5) is arranged some guide pillars (3), guide pillar (3) coordinates with the guide pillar sleeve (8) be arranged on casing (4), sliding support plate can be moved up and down along guide pillar sleeve direction, sliding support plate (5) bottom arranges three upper end iron cores (6), three lower end iron cores (7) with winding are set in casing (4), regulate Current adjustment dish to regulate the distance between upper end iron core and lower end iron core, in order to regulate size of current.

3. rare-earth permanent-magnet electric machine intermediate frequency DC generation electric welding machine according to claim 2, it is characterized in that: the winding on lower end iron core (7) has three binding posts, be respectively lead-in clamp, output wiring terminal and middle output wiring terminal, between lead-in clamp and output wiring terminal, between lead-in clamp and middle output wiring terminal, form one-level respectively and export gear.