Roller spacing online dynamic adjustment device
A technology of dynamic adjustment and roll spacing, which is applied in the direction of rolling force/roll gap control, etc., can solve the problems of cutting head and tail loss, low wall thickness precision, etc., to prevent tail jam accidents, reliable s value, convenient debugging and production The effect of process monitoring
Inactive Publication Date: 2015-04-22
太原磬泓机电设备有限公司
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[0004] The present invention provides an online dynamic adjustment device for roll spacing in order to solve the problems of low longitudinal wall thickness precision and serious head and tail loss of steel pipes after passing through the tensioning and reducing machine.
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[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] Such as figure 1 , 2 The on-line dynamic adjustment device for roll distance shown in the figure includes a fine-tuning and quick-opening oil cylinder 1 fixed on the base 7. The fine-tuning and quick-opening oil cylinder 1 is a two-stage double-acting oil cylinder, which consists of oil cylinder rod I2, oil cylinder rod II3, The oil cylinder barrel 4 is composed of the oil cylinder barrel 4 fixed on the base 7, the first-stage oil cylinder of the fine-tuning quick-opening oil cylinder 1 is a double-rod fine-tuning oil cylinder, the second-stage oil cylinder is a double-outlet quick-opening oil cylinder, and the oil cylinder rod II 3 is also a second-stage oil cylinder At the same time, its tail is fixed with a hexagon socket bolt to limit the limit block 6; wherein an adjustment pad 5 is also placed between the oil cylinder 4 and the limit block 6.
[0018] T...
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The invention discloses a roller spacing online dynamic adjustment device, belongs to the technical field of skew rolling and relates to a two-roller seamless tube rolling mill. The roller spacing online dynamic adjustment device solves the problems that the accuracy of the longitudinal wall thickness of a steel tube is low, and loss is serious because the head and the tail of the steel tube are cut after the steel tube passes through a stretch reducing mill l. The roller spacing online dynamic adjustment device comprises an oil cylinder fixed to a base. The oil cylinder is a two-level double-acting cylinder and is composed of an oil cylinder rod I, an oil cylinder rod II and an oil cylinder barrel, wherein the oil cylinder is fixed to the base, a first-level oil cylinder body of the oil cylinder is a double-rod fine adjustment oil cylinder, a second-level oil cylinder body of the oil cylinder is a double-rod quickly-opening oil cylinder, the oil cylinder rod II is a cylinder barrel of the second-level oil cylinder body at the same time, and a limiting block is fixed to the tail of the oil cylinder rod II; a adjusting cushion block is further arranged between the oil cylinder barrel and the limiting block. The roller spacing online dynamic adjustment device conducts mechanical limiting, simplifies a hydraulic and electrical control system and is easy and convenient to operate and low in cost.
Description
technical field [0001] The invention belongs to the technical field of cross rolling, and relates to a two-roller seamless steel pipe mill, in particular to an online dynamic adjustment device for roll spacing used in a two-roller cross-rolling seamless steel pipe mill. technical background [0002] The hot-rolled seamless steel pipe production technology is a technology that processes solid pipe blanks into seamless steel pipes through the processes of heating, piercing, mill rolling, sizing, and straightening. The traditional two-roll seamless steel pipe rolling mill does not have the on-line Adjustment function, in the process of rolling steel pipes, there will be a phenomenon that the wall thickness of the steel pipe head and tail is out of tolerance, resulting in the increase of loss at the head and tail, which directly affects the yield of the steel pipe. [0003] In order to solve the above-mentioned problems existing in the prior art, the present invention develops a...
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IPC IPC(8): B21B37/58
CPCB21B37/58
Inventor 张国庆李春苗马永红
Owner 太原磬泓机电设备有限公司