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Open arc on-line surfacing repair device and method for grinding roller of medium-speed mill

A repair method and roller grinding technology, which are applied in arc welding equipment, electrode support devices, welding rod characteristics, etc., can solve the problems of complicated replacement procedures, expensive production, and high cost, and achieve small size, increased sales revenue, and high work efficiency. Effect

Pending Publication Date: 2019-12-06
甘肃酒钢集团西部重工股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the grinding roller is generally made of high-chromium wear-resistant steel, high-chromium cast iron and other materials, it has good wear resistance, but the production price is expensive, and the replacement procedure is complicated, the cycle is long, and the cost is high

Method used

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  • Open arc on-line surfacing repair device and method for grinding roller of medium-speed mill

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Embodiment Construction

[0024] The present invention and its effects will be further described below in conjunction with the accompanying drawings.

[0025] refer to figure 1 , an open arc on-line surfacing repair device for medium-speed grinding rollers, including a PLC welding control box, a grinding roller driving device is installed at the bottom of the grinding roller 1, a welding torch 3 is arranged on the grinding roller surface, and the rear end of the welding torch 3 passes through a connecting rod 4 communicate with the double-drive wire feeder 6 and the welding wire straightening mechanism 7 in turn, and the wire inlet of the welding wire straightening mechanism 7 penetrates the welding wire placed on the wire feeding device; the double-drive wire feeder 6 passes through the welding torch angle adjustment mechanism 9 is installed on the welding trolley 11; the limit switch 35 is installed on the support frame of the grinding roller driving device, and the touch rod 36 is installed on the o...

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Abstract

The invention relates to an open arc on-line surfacing repair device and method for a grinding roller of a medium-speed mill. The open arc on-line surfacing repair device comprises a PLC welding control box, and an electric welding machine, a welding trolley, a double-drive wire feeder and a limit switch which are connected with the PLC welding control box. A grinding roller driving device is arranged at the bottom of the grinding roller; a welding gun is arranged on the surface of the grinding roller; the rear end of the welding gun sequentially communicates with the double-drive wire feederand a welding wire straightening mechanism through a connecting rod; a welding wire placed on a wire feeding device penetrates into a wire inlet of the welding wire straightening mechanism; and the double-drive wire feeder is mounted on the welding trolley through a welding gun angle adjusting mechanism. On-line surfacing repair is carried out on the grinding roller without disassembling the grinding roller, so that a large amount of manpower and material resources are capable of being saved and the repair period is capable of being shortened. The open arc on-line surfacing repair method mainly ensures that each performance of a surfacing layer meets repair requirements by selecting welding parameters and welding modes.

Description

technical field [0001] The invention belongs to the field of surfacing welding devices, in particular to an open arc online surfacing welding repairing device and method for medium-speed grinding rollers. Background technique [0002] During production, medium-speed grinding rollers (hereinafter referred to as grinding rollers) grind the raw coal that falls from the central coal drop pipe. Grinding rollers operate at high temperatures and must bear greater grinding pressure and the impact force brought by raw coal. With the continuous impact and wear of raw materials on the grinding rollers, the effective grinding area of ​​the grinding rollers decreases, forming wavy patterns. Equipment efficiency dropped dramatically. When the grinding roller is worn to the scrapped size, it can only be replaced with a new grinding roller. Because grinding rollers are generally made of high-chromium wear-resistant steel, high-chromium cast iron and other materials, they have good wear re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00B23K9/04B23K9/133B23K9/095B23K9/235B23K9/28B23K9/32
CPCB23P6/00B23K9/04B23K9/133B23K9/095B23K9/235B23K9/285B23K9/32
Inventor 景超刘航杨彦成杨高基门永卿张燕强张旭君
Owner 甘肃酒钢集团西部重工股份有限公司
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