Replacement method of steel wire rope for pickling rolling looper
A replacement method and steel wire rope technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of high labor intensity and low efficiency, and achieve the effect of reducing labor intensity, reducing pollution, and improving replacement efficiency
Active Publication Date: 2018-12-14
SHANGHAI BAOYE GRP CORP
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
This is a labor-intensive and low-efficiency process during the maintenance operation
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] A method for replacing a pickling looper steel wire rope, comprising the steps of:
[0019] Step 1. Park the looper trolley at the full set position;
[0020] Step 2, three-party confirmation, power outage, listing;
[0021] Step 3. Fix the looper trolley at the limit position with the steel wire rope by using the reverse chain to prevent the trolley from moving when replacing and fastening the steel wire rope;
[0022] Step 4: Fix the steel wire rope hydraulic cylinder head with the back chain, and clamp it with clips after tightening; slowly play back the hydraulic cylinder, put it at the limit position, loosen the clips that fix the wire rope, and put the hydraulic cylinder head Use a sledgehammer to punch out the tongue at the top, take out the wire rope, slowly loosen the rewinding chain, completely release the tension on the wire rope, and remove the clip that fixes the rewinding chain;
[0023] Step 5. Make a guide wheel, remove the other fixed end of the wire ...
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The invention relates to a maintenance method of pickling-rolling equipment, and discloses a changing method for a steel wire rope of a pickling-rolling loop. The changing method comprises the steps of stopping a loop trolley in a full loop position; cutting off power and hanging a tag; fixing the steel wire rope in an extreme position through a chain block; fixing a hydraulic cylinder head of the steel wire rope through the chain block, and after tensioning the hydraulic cylinder head, clamping the hydraulic cylinder head; returning a hydraulic cylinder to the extreme position, loosening the steel wire rope, opening a tongue of the hydraulic cylinder head, taking out the steel wire rope, loosening the chain block, and completely relieving tension of the steel wire rope; disassembling the other fixed end of the steel wire rope, penetrating the steel wire rope through a pre-fixed guide pulley, and pulling the steel wire rope out of the loop; welding new and old ropes; carrying out point rotation on a rope sheave for driving, and pulling the steel wire ropes out of the loop through a fork lift; cutting off the old steel wire rope, and fixing the new steel wire rope; tensioning the other end of the new steel wire rope through the chain block, penetrating the steel wire rope through the hydraulic cylinder head, fixing the steel wire rope, and adjusting the steel wire rope to proper tightness through the chain block and the hydraulic cylinder; fixing the steel wire rope; and taking down steel wire ropes on a closed trolley. According to the changing method, the working efficiency is improved, and the labor intensity is reduced.
Description
technical field [0001] The invention relates to the maintenance of acid rolling equipment, in particular to the replacement of the steel wire rope of the acid rolling loop. Background technique [0002] The cold-rolled horizontal looper is applied to the cold-rolled pickling line and is an important equipment for continuous production of the entire pickling line. Basically, each pickling line has 3 loopers. The main equipment of the looper includes a looper trolley , Steel wire rope, hydraulic cylinder, loop door, bottom roller and other equipment. Its main function is to store strip steel and provide sufficient buffer time for coil change and welding at the entrance. The looper is one of the important equipment for cold rolling. Since the wire rope maintains a sufficient tension for a long time, the wire rope is in a tight state for a long time, and the wire rope is prone to broken wires. replacement. This is a labor-intensive and low-efficiency process in the maintenanc...
Claims
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IPC IPC(8): B21B41/00
Inventor 杜积春刘红涛芦涛潘新梁
Owner SHANGHAI BAOYE GRP CORP