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Short pitch screw-stem screwdown device

A technology of pressing device and short-pitch screw, applied in length measuring device, rolling mill control device, metal rolling, etc., can solve the problem of difficult installation of the reducer, and achieve the effect of compact structure and small volume

Inactive Publication Date: 2007-07-25
郑红专 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, for a 350mm rolling mill, the center distance between the two pressing screws is required to be about 230mm. Because the center distance between the two pressing screws is small, it is difficult to install the reducer in the prior art structure.

Method used

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  • Short pitch screw-stem screwdown device

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Effect test

Embodiment Construction

[0013] Fig. 1 is a schematic diagram of the structure of the present invention. As shown in Figure 1, the short-pitch screw depressing device of the present invention includes a depressing screw 1, a driving gear 2, a transmission gear 3 and a worm gear reducer 4, and the depressing screw 1 is screwed on the rolling mill frame 10, and its lower end Pressed on the upper roll seat, it is used to provide rolling force and control the cross-sectional shape of the rolled piece; the driving gear 2 is fixed on the upper end of the pressing screw 1, and the driving gear 2 and the pressing screw 1 are coaxial; the transmission gear 3 It is arranged in parallel on one side of the driving gear 2 and meshes with the driving gear 2; the output shaft of the worm gear reducer 4 is fixedly connected to the transmission gear 3, and its input shaft is connected to the motor. When working, after the output of the motor is decelerated by the worm reducer 4 and the transmission direction is change...

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PUM

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Abstract

A screw bolt type small-pitch press-down unit of rolling mill is composed of a press-down screw bolt screwed to machine frame, a drive gear fixed to top end of said press-down screw bolt, a transmission gear engaged with said drive gear, a worm-gear speed reducer linked with said transmission gear, and an upper limit switch for detecting the displacement of press-down screw bolt to stop it.

Description

technical field [0001] The invention relates to a depressing device of a multi-roll rolling mill, in particular to a short-pitch screw depressing device acting on the top of a roll stand. Background technique [0002] In the production of plate and strip, the thickness accuracy and flatness of the plate are important indicators to reflect the quality of the product. The thickness automatic control technology has been developed to a very high level in recent years, but the flatness control technology has been under research, and there are still various types of rolling mills in the existing technology when rolling strips with large width-to-thickness ratios. Serious lateral thickness difference problem. The transverse thickness difference of the plate and strip depends on the size and shape of the work roll gap, and one of the main reasons affecting the work roll gap is the bending deformation of the roll. Under the action of the rolling force, the bending deformation of the...

Claims

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Application Information

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IPC IPC(8): B21B31/16B21B37/00B21B38/00
Inventor 郑红专赵林珍
Owner 郑红专