CN201249198Y

CN201249198Y - Work roll axial force measuring device in flat rolling mill

Info

Publication number: CN201249198Y
Application number: CNU2008201322765U
Authority: CN
Inventors: 闫瑾
Original assignee: Beijing Research Institute Of Metallurgical Equipment China Metallurgical Const
Current assignee: Beijing Metallurgical Equipment Research Design Institute Co Ltd
Priority date: 2008-08-19
Filing date: 2008-08-19
Publication date: 2009-06-03
Anticipated expiration: 2018-08-19

Abstract

The utility model relates to a work roll axial force measuring device in a flat rolling mill. The work roll axial force measuring device mainly comprises a work roll, bearings arranged outside the work roll, bearing seats, CVC wheel spindles, CVC moving cylinder outer bushes arranged outside the CVC wheel spindles, bush lining boards, latch segment lining boards and latch segments. The work roll axial force measuring device is characterized in that a load cell is screwed on a CVC wheel spindle extended segment where a CVC wheel is disassembled by a clamping structure; a signal cable is arranged on the load cell; the signal cable is connected into a strain gauge; the load cell and the signal cable are internally welded with an electric bridge; the load cell has the same installation conditions and load bearing position with the CVC wheel; and a pair of load cells is arranged at each installation position of four groups of CVC wheels which are disassembled from an upper work roll and a lower work roll. By using the work roll axial force measuring device, the work roll axial force value in the flat rolling mill is measured precisely and directly; the plate shape control is realized when the flat rolling mill works; and the plate band quality is improved.

Description

A kind of strip-mill strip working roll axial force measurement mechanism

Technical field:

The utility model relates to a kind of strip-mill strip working roll bi-directional axial force measuring device, the measurement mechanism that particularly relates to the CVC milling train or have similar operation roll of mill axial force.

Background technology:

The axial force of existing C VC strip-mill strip working roll does not have special measurement mechanism, mainly utilize cylinder pressure to calculate, its numerical value and the practical function axial force on roll also has difference, as everybody knows, CVC operation roll of mill axial force is the important parameter that carries out the control of plate shape convexity, it also is the key factor that influences the workroll bearing life-span, raising along with product quality, the control of plate shape is had higher requirement, therefore, it is very necessary accurately, directly detecting the axial force that acts on the work roll.

Summary of the invention:

The purpose of this utility model provides a kind of device that can accurately, directly measure strip-mill strip working roll axial force.

Technical solution of the present utility model provides a kind of strip-mill strip working roll axial force measurement mechanism, mainly comprise working roll, be installed in the bearing in the working roll outside, bearing block, the CVC wheel shaft, be installed in the CVC movable cylinder external bushing in the CVC wheel shaft outside, the lining liner plate, the latch segment liner plate, latch segment, it is characterized in that: on the CVC wheel location that overhanging section of CVC wheel shaft unloads, pass through clamping structure, bolt is connected and installed a force cell, a signal cable is installed on force cell, signal cable inserts a deformeter, and force cell and signal cable are that portion and electric bridge weld within it; The mounting condition of force cell and CVC wheel is identical with the position of bearing load; A pair of force cell is respectively installed in the position that 4 groups of CVC that pull down at upper and lower working roll take turns.

Implementation result of the present utility model is: because the force cell that is connected as a single entity with clamp mechanism is provided, it is convenient to use, install and remove, can accurately, directly measure the numerical value of strip-mill strip working roll axial force, certainty of measurement can reach 3%, can realize the template control in the milling train work, improve the product quality of strip.

Description of drawings:

Fig. 1 is the measuring position figure of the utility model embodiment on working roll.

Fig. 2 is the enlarged diagram of the utility model embodiment.

Fig. 3 is that the K of Fig. 2 is to view

Fig. 4 is that the N of Fig. 2 is to view

In the accompanying drawing: 1. working roll; 2. bearing; 3. bearing block; 4.CVC movable cylinder external bushing; 5. lining liner plate; 6. force cell; 7. clamping structure; 8. bolt connects; 9. signal cable; 10. latch segment liner plate; 11. latch segment; 12.CVC wheel shaft;

The specific embodiment

Below in conjunction with accompanying drawing a kind of strip-mill strip working roll of the utility model embodiment axial force measurement mechanism is described in further detail, Fig. 1 is the axial force measuring position figure of the utility model embodiment on a kind of strip-mill strip working roll, in Fig. 1, comprised the bearing 2 that is installed in working roll 1 outside, bearing block 3, CVC wheel shaft 12, be installed in the CVC movable cylinder external bushing 4 in CVC wheel shaft 12 outsides, lining liner plate 5, latch segment liner plate 10, latch segment 11, the axial force that working roll 1 is born is delivered on the force cell 6 by lining liner plate 5 and latch segment liner plate 10, this position is equipped with CVC wheel 12 when not measuring, force cell 6 designs according to the installing space of CVC wheel, top working roll 1 has 4 groups of CVC wheels 12 with bottom working roll 1, and arrow is represented stressed position and direction among the figure.In Fig. 2, Fig. 3, Fig. 4, four signal cables 9 are installed on four force cells 6, and force cell 6 welds together with clamping structure 7, and are fixed on by bolt connection 8 on the origin-location of the CVC wheel of dismantling on the CVC wheel shaft 12.Its operation principle and flow process: the force cell operation principle is based on the strain gauge principle, before measurement, 4 pairs of measuring transducers 6 are connected with deformeter and carry out system calibrating, demarcation should be carried out in the legal unit of measurement that country is authorized, 4 groups of CVC wheels that the milling train operation is surveyed are pulled down then, be installed in respectively on 4 CVC wheel shafts 12 demarcating 4 pairs of good measuring transducers 6, signal cable 9 is inserted deformeter, just can begin numerical value is measured and write down to working roll 1 axial force.

Claims

1, a kind of strip-mill strip working roll axial force measurement mechanism, mainly comprise working roll (1), be installed in the bearing (2) in working roll (1) outside, bearing block (3), CVC wheel shaft (12), be installed in the CVC movable cylinder external bushing (4) in CVC wheel shaft (12) outside, lining liner plate (5), latch segment liner plate (10), latch segment (11), it is characterized in that: on the CVC wheel location that overhanging section of CVC wheel shaft (12) unloads, by clamping structure (7), bolt connects (8) force cell (6) is installed, go up an installation signal cable (9) at force cell (6), signal cable (9) inserts a deformeter, and force cell (6) is that portion welds with electric bridge within it with signal cable (9).

2, a kind of strip-mill strip working roll axial force measurement mechanism according to claim 1 is characterized in that: the mounting condition of force cell (6) and CVC wheel is identical with the position of bearing load.

3, a kind of strip-mill strip working roll axial force measurement mechanism according to claim 1 is characterized in that: a pair of force cell (6) is respectively installed in the position that 4 groups of CVC that pull down at upper and lower working roll (1) take turns.