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Movable steel rail flash welding machine driven by large-power energy storage power supply device

A technology of power supply device and flash welding machine, which is applied in the direction of resistance welding equipment, welding power supply, welding equipment, etc., which can solve the problems of difficult welding operation, increased thermal load, and decreased reliability of flash welding machines, and achieves the reduction of short-circuit duration , reduce the impact load, reduce the effect of short-circuit current

Active Publication Date: 2019-08-16
成都西南交通大学产业(集团)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unit's fuel consumption rate, heat load increase and reliability decline have caused great difficulties for flash welding machines to perform welding operations on plateaus

Method used

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  • Movable steel rail flash welding machine driven by large-power energy storage power supply device
  • Movable steel rail flash welding machine driven by large-power energy storage power supply device
  • Movable steel rail flash welding machine driven by large-power energy storage power supply device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A mobile rail flash welder driven by a high-power energy storage power supply device includes a welder 9, welding machine auxiliary equipment 4 and a power supply device, the power supply device includes a battery pack power supply part and a supercapacitor pack power supply part, and the battery The power supply part of the group 1 supplies power to the power supply part of the auxiliary equipment 4 of the welding machine, and the power supply part of the super capacitor group 5 supplies power to the welding machine 9 .

[0040] When preparing for welding, the power supply part of the battery pack 1 continuously supplies power to the auxiliary system to meet the preparation conditions before welding, and the power supply part of the battery pack 1 charges the power supply part of the supercapacitor pack 5; Machine 9 supplies power.

[0041] The power supply part of the battery pack includes a charging device 10 and a battery pack 1 , the charging device 10 charges the ...

Embodiment 2

[0052] On the basis of Example 1, this application adopts a battery power supply system composed of an energy storage device and an inverter device composed of power electronics to replace a diesel generator. The energy storage device mainly realizes energy storage and release. The power supply system uses iron phosphate Lithium battery and supercapacitor 13 are combined. The inverter device mainly converts the DC power stored in the energy storage device into the single-phase AC power required by the mobile flash welding machine 9 and the three-phase power required by the auxiliary equipment. The power supply system of the welding machine 9 is mainly divided into two parts, one part is for the flash The welding machine 9 supplies power, and the other part supplies power to the hydraulic system and auxiliary systems. The system schematic diagram is as follows figure 1 shown.

[0053] according to figure 2 Requirements, arrange the equipment according to the equipment layou...

Embodiment 3

[0056] On the basis of Examples 1 and 2, the welding process is innovated on the original rail flash welding welding process matched with the diesel generator set.

[0057] Using the flash welding machine of the present application, a mobile rail flash welding process driven by a high-power energy storage power supply device is realized. The continuous flash welding process is combined with the pulse flash welding process, and the welding current is relatively small, and the welding The load of the transformer is small, the welding time is long, the loss is low, and the heating is uniform. The welding stage includes: flashing stage, upsetting stage and pressure holding and pushing stage;

[0058] In the flash stage, the section of the weldment is rapidly melted to form a liquid bridge blast, and the joint is heated;

[0059] In the upsetting stage, excess metal at the weld is squeezed out, and plastic deformation occurs in the heat-affected zone;

[0060] In the pressure-hol...

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PUM

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Abstract

The invention relates to the field of steel rail flash welding, in particular to a movable steel rail flash welding machine driven by a large-power energy storage power supply device. The movable steel rail flash welding machine comprises a welding machine, welding machine auxiliary equipment and the power supply device. The power supply device comprises a battery set power supply part and a super-capacitor set power supply part. The battery set power supply part supplies power to the welding machine auxiliary equipment and the super-capacitor set power supply part. The super-capacitor set power supply part supplies power to the welding machine. During preparation before welding, the battery set power supply part continuously supplies power to an auxiliary system so that preparation conditions before welding can be met, and the battery set power supply part charges the super-capacitor set power supply part. When welding is needed, the super-capacitor set power supply part supplies power to the welding machine. A battery set and a super-capacitor set are matched, under the situation that load fluctuation is large, the battery set high-strength power supply probability is obviously reduced, the energy density of a power source can be improved, and meanwhile the peak current requirement is met.

Description

technical field [0001] This application relates to the field of rail flash welding, specifically, a mobile rail flash welding machine driven by a high-power energy storage power supply device. Background technique [0002] The existing mobile rail flash welding machine is composed of welding head, hanger, hydraulic pump station, container, hydraulic outrigger and diesel generator, and the systems are connected by control cables, cooling water pipes and hydraulic oil pipes Into an organic whole, it is a large-scale machine widely used in rail welding sites. Such as image 3 As shown, most of the existing mobile flash welding machines use diesel generator sets to supply power to the main circuit of the flash welding machine. [0003] In the current mobile AC rail flash welding system, diesel generator sets are mostly used as the power supply of the welding machine. This power supply mode has the advantages of good environmental adaptability and continuous power supply. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/04B23K11/24B23K11/36
CPCB23K11/043B23K11/046
Inventor 骆德阳陶启明吕其兵谭洪涛
Owner 成都西南交通大学产业(集团)有限公司
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