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Internal wear clearance measuring and calculating method of winding drum of winding machine

A wear gap and coiler technology, applied in the fields of machinery and iron and steel, can solve the problems of no reel wear measurement and the inability to know the size of the reel wear gap, so as to solve the waste of maintenance costs, reduce maintenance costs, and extend the replacement cycle Effect

Active Publication Date: 2016-04-06
BEIJING SHOUGANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, there is no method for measuring the wear inside the reel, and it is impossible to know the size of the wear gap inside the reel

Method used

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  • Internal wear clearance measuring and calculating method of winding drum of winding machine
  • Internal wear clearance measuring and calculating method of winding drum of winding machine
  • Internal wear clearance measuring and calculating method of winding drum of winding machine

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Embodiment

[0051] In order to measure and calculate the internal wear gap of the reel of the coiler, the embodiment of the present application first obtains the corresponding relationship between the no-load expansion diameter and the theoretical rigid expansion diameter of the reel and the maximum clearance allowed inside the reel.

[0052] 1. Corresponding relationship between no-load expansion diameter and theoretical rigid expansion diameter

[0053] In the specific implementation process, since the mandrel 120 of the reel and the fan-shaped plate 140 are connected by means of the connecting rod 150, the extension of the spring 33 of the wedge block 130 varies under different no-load expansion diameters, that is, no-load expansion. The corresponding curve of diameter and spring 33 extension is non-linear. By measuring and calculating the drawings, it is obtained that the no-load expansion diameter of the reel is from 727mm to 762mm corresponding to the extension of the spring 33 and ...

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Abstract

The invention discloses an internal wear clearance measuring and calculating method of a winding drum of a winding machine. The method comprises the steps that the zero wear rigidity expanding diameter and the zero wear no-load expansion diameter of the winding drum of the winding machine under the condition without wear are obtained; after the winding drum is used for a preset time period, the measuring rigidity expansion diameter of the winding drum is obtained by limiting the actual rigidity expansion diameter of the winding drum; the winding drum expands to the pre-expansion position, so that the measuring no-load expansion diameter of the winding drum of the winding machine is detected and obtained; and according to the measuring rigidity expansion diameter, the measuring no-load expansion diameter, the zero wear rigidity expansion diameter and the zero wear no-load expansion diameter, the internal wear clearance total amount of the winding drum is obtained. According to the technical scheme, the internal wear clearance total amount of the winding drum is obtained, and therefore replacement of the winding drum can be carried out when the internal wear clearance total amount approximates the maximum allowance wear clearance, the technical problems that in the prior art, according to the steel coiling amount, the winding drum is replaced, and the maintaining cost is wasted are solved, and the technical effects of prolonging the replacement period of the winding drum and reducing the maintaining cost are achieved.

Description

technical field [0001] The invention relates to the technical fields of steel and machinery, in particular to a method for measuring and calculating the internal wear gap of a reel of a coiler. Background technique [0002] The replacement cycle of the hot-rolled coiler reel depends on the amount of steel coiled in the reel. The replacement cycle of the coiler reels of domestic hot rolling production lines is generally set at 800,000-1 million tons. After the reel is replaced and removed from the machine, it needs to be disassembled and repaired to replace or repair the worn parts inside the reel to restore its expansion and contraction accuracy. The price of each reel repair is between 500,000 and 550,000 yuan. Based on the annual output of the hot rolling production line of 4 million tons, the annual maintenance cost of the reel repair is about 2 million yuan. [0003] However, due to the different specifications of steel coils coiled by the drum, production environment,...

Claims

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Application Information

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IPC IPC(8): B21C51/00
CPCB21C51/00
Inventor 丛振华高伟李晓磊李翔晟葛庆辉杨文强陈立新
Owner BEIJING SHOUGANG CO LTD
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