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Gap-free large screwdown device for roller gap and using method thereof

A pressing device and no gap technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as large roll gap deviation and production impact, to eliminate center segregation, improve casting billet quality, eliminate The effect of loose center

Pending Publication Date: 2019-08-30
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a gapless large reduction device for the roll gap and its use method, which has solved the problem in the prior art that the force conditions of the hydraulic cylinder piston, connecting rod and trunnion are completely opposite. The connection gap is completely opposite, and the size of the gap is not fixed, which leads to a large deviation between the roll gap of each large reduction device measured by the roll gap meter and the actual value, thus affecting production.

Method used

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  • Gap-free large screwdown device for roller gap and using method thereof
  • Gap-free large screwdown device for roller gap and using method thereof
  • Gap-free large screwdown device for roller gap and using method thereof

Examples

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Effect test

Embodiment 1

[0029] Such as figure 1 As shown, a large gapless rolling device for rolling gaps includes a lower frame assembly frame 21, and several groups of flexible rod frames are connected to the lower frame assembly frame 21. Each group of flexible rod frames includes two flexible rods 17, two The root flexible rods 17 are respectively located on both sides of the lower frame assembly frame 21, and the upper end of each flexible rod 17 is connected with a hollow hydraulic cylinder 15, and the bottom of the piston 23 of the hollow hydraulic cylinder 15 is connected with the flexible rod 17, and the hollow hydraulic cylinders 15 can be connected to each other. The upper frame assembly frame 11 is disassembled and connected, wherein the displacement sensing device is also connected to the top of the hollow hydraulic cylinder 15, the guide roller 12 is connected above the lower frame assembly frame 21, and the guide roller 12 is connected below the upper frame assembly frame 11.

[0030]...

Embodiment 2

[0041] Such as Figure 1 to Figure 3 As shown, a method for using a gapless large reduction device for a roll gap includes the following steps:

[0042] The first step, data measurement, use the roll gap measuring instrument to measure the actual roll gap value G between the two guide rolls 测 , the neutral roll gap N of the pressing device, the diameter of the guide roll The obtuse angle β of the angle between the center line of the inner and outer arc rollers of the pressing device and the center line of the pressing device,

[0043] Such as image 3 As shown, the neutral roll gap N of the pressing device, the diameter of the guide roll The obtuse angle β of the angle between the center line of the inner and outer arc rollers of the pressing device and the center line of the pressing device,

[0044] In the second step, the guide roller moves, and the actual roll gap value G 测 , input to the zero point correction module 29, the zero point correction module 29 calculate...

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Abstract

The invention discloses a gap-free large screwdown device for a roller gap and a using method thereof. The device comprises a lower frame assembly frame, wherein a plurality of sets of flexible rod frames are connected to the lower frame assembly frame, and each set of flexible rod frames comprises two flexible rods which are positioned on two parallel sides of a lower frame; the upper end of eachflexible rod is connected with a hollow hydraulic cylinder, and the bottom of a piston of each hollow hydraulic cylinder is connected with the corresponding flexible rod; an upper frame assembly frame is detachably connected between the hollow hydraulic cylinders, and a displacement sensing device is further connected to the top of each hollow hydraulic cylinder; a guide roller is connected abovethe lower frame assembly frame; and another guide roller is connected below the upper frame assembly frame. By using the novel flexible rods as support, the influence of the gap between the devices on the detected roller gap is avoided, the roller gap can be remotely and accurately controlled, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of metallurgical processes, and in particular relates to a gapless large reduction device for roll gaps and a use method thereof. Background technique [0002] The large reduction technology at the end of continuous casting solidification is an effective technology to solve the segregation of the slab center, improve the uniformity and density of solidification, and improve the quality of the slab. How to implement accurate reduction control at the end of the slab solidification is a continuous The key technology of large pressure at the end of casting solidification. [0003] The actuator for reducing the amount of reduction at the end of the slab solidification is a large reduction device, which mainly moves the upper frame downward by controlling four clamping hydraulic cylinders, and drives the guide rollers fixed on the upper frame to move downward together. Form a tapered shrinkage roll gap, extrude t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/12G06F17/50
CPCB22D11/1206G06F30/17
Inventor 张奇杨拉道刘赵卫何博史学亮刘俊平
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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