Rapid detection method of tandem rolling rack condition
A detection method and frame technology, applied in the direction of length measuring device, metal rolling, metal rolling, etc., can solve the problems of high misjudgment rate and no definite basis, and achieve simple process, good judgment effect and high detection accuracy Effect
Active Publication Date: 2013-05-29
BAOSHAN IRON & STEEL CO LTD
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However, this method has no definite basis, so the misjudgment rate is very high
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[0051] A feature of the present invention is to use the means of roll gap measurement to measure the state of the frame. The usual detection of rack status is measured according to the status of the rack itself, such as the status of each link in the transmission system and the length of time the rack itself has been in use. However, the change of the state of the stand will cause the change of the position of the roll, so it is theoretically feasible to use the position of the roll as a parameter to judge the state of the stand. On the other hand, if image 3 As shown, the two edges 31, 32, 41, 42 of the upper and lower rolls are all CNC-machined rotary planes. After the two rolls are adjusted and installed in the frame, the planes of the edges 31, 32, 41, 42 are more precisely in the horizontal position. Therefore, the left and right roll gap distances between the upper and lower rolls (i.e. the distance between the left edge 31 of the upper roll and the left edge 41 of th...
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The invention provides a rapid detection method of a tandem rolling rack condition. The rapid detection method includes following steps: step a, a main clutch is adjusted to be in a closed state, an input shaft of a transmission input mechanism is adjusted, and left-side roll gap initial value X and right-side roll gap initial value Y between an upper roller and a lower roller are measured; step b, the input shaft of the transmission input mechanism is rotated reversely m circles, and first left-side roll gap value X1 and first right-side roll gap value Y1 between the upper roller and the lower roller at the moment are measured; step c, the input shaft of the transmission input mechanism continues to be rotated reversely m circles, and second left-side roll gap value X2 and second right-side roll gap value Y2 between the upper roller and the lower roller at the moment are measured; and step d, the input shaft of the transmission input mechanism is rotated forward 2m circles, and third left-side roll gap value X3 and third right-side roll gap value Y3 between the upper roller and the lower roller at the moment are measured. The rapid detection method of the tandem rolling rack condition is simple and rapid, high in detection precision, and good in decision effect.
Description
technical field [0001] The invention relates to the detection of a continuous rolling mill for hot rolling, more specifically, a method for rapidly detecting the state of a continuous rolling stand for detecting the state of a continuous rolling stand. Background technique [0002] In the hot rolling process in the field of iron and steel production, the continuous rolling mill plays a role of linking the past and the future. In the continuous rolling mill, the continuous rolling stand is the most important rolling equipment. The state of the continuous rolling mill has a direct impact on the precision of the continuous rolling, especially on the wall thickness of the finished steel pipe. Specifically, when the condition of the continuous rolling mill is not good, the wall thickness precision of the steel pipe is poor, and sometimes even shrinkage of the pipe wall occurs, which has a great impact on the rolling quality. Therefore, in order to improve the rolling quality, i...
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IPC IPC(8): B21B38/00B21B38/10
Inventor 张立华薛建国
Owner BAOSHAN IRON & STEEL CO LTD