CN102166669B

CN102166669B - Method for adjusting gap of blades of crank flying shears and device thereof

Info

Publication number: CN102166669B
Application number: CN 201110091803
Authority: CN
Inventors: 王希霞; 孙启平; 吴智刚; 唐蓓娜; 刘素华; 张莉; 张晔; 刘治乾; 鲍东南; 张明灿; 杨德照; 刘开坤
Original assignee: CITIC Heavy Industries Co Ltd
Current assignee: CITIC Heavy Industries Co Ltd
Priority date: 2011-04-13
Filing date: 2011-04-13
Publication date: 2013-06-19
Anticipated expiration: 2031-04-13
Also published as: CN102166669A

Abstract

The invention discloses a method for adjusting a gap of blades of a pair of crank flying shears and a device thereof. An upper set of eccentric adjustment mechanism and a lower set of eccentric adjustment mechanism are arranged on a stander of the crank flying shears, and are respectively connected with an upper knife rest and a lower knife rest, and the upper knife rest and the lower knife rest are respectively driven by the upper set of eccentric adjustment mechanism and the lower set of eccentric adjustment mechanism to move at the same direction or the reverse direction, so that the gap of the blades on the upper knife rest and the lower knife rest is reduced or enlarged, the time for adjusting the gap of the blades of the shears is effectively reduced, the method is convenient to operate, the precise adjustment is easily realized, and the production efficiency is improved.

Description

A kind of blades of crank flying shears clearance adjustment method and device

Technical field

The present invention relates to metallurgy industry and be used for the flying shear technical field that steel rolling production-line is sheared, especially relate to a kind of blades of crank flying shears clearance adjustment method and device.

Background technology

In steel rolling production-line, the flying shear that is used for rolled piece is implemented to shear is one of key equipment of steel rolling production-line, flying shear be generally used for to rolled piece implement crop, back-end crop, to cut multiple length, segmentation and accident cataclasm, burr size when one of important indicator of finished product mill bar quality is exactly the flying shear shearing, this just requires the numerical value of the blade clearance of flying shear to want accurately.At present, the method of adjustment of plus-minus pad between scissors and knife rest is adopted in the adjustment of the blade clearance of crank flying shears mostly, the enforcement body of existing blades of crank flying shears clearance adjustment method as shown in Figure 1, measure gap and registration between upper and lower cutting edge, calculate the thickness of required increase or minimizing according to the technique needs, then, the screw 3 of fixed blade 4 is backed out, after vertically pad 5 and horizontal pad 2 are added between knife rest and scissors, then screw 3 is tightened.If it is improper to add the gap of measuring between cutting edge after pad, also need again scissors to be taken off, repeat primary operation, operating procedure is many, and assembling-disassembling bolt quantity is many, wastes time and energy very much, affects output.

Summary of the invention

In order to address the above problem, the purpose of this invention is to provide a kind of blades of crank flying shears clearance adjustment method and device, it can in the situation that do not take off scissors, just can reach the purpose of adjusting cutting edge registration and blade clearance.

For achieving the above object, the present invention adopts following technical scheme:

a kind of blades of crank flying shears clearance adjustment method, it is by installing on the frame of crank flying shear, lower two cover eccentric adjustments, on, lower two cover eccentric adjustments are respectively with upper, lower slide connects, eccentric adjustment is by eccentric shaft, regulating wheel, fixed cover, large endplay device, little endplay device and bracing or strutting arrangement form, eccentric shaft is arranged in the axis hole of frame and an end extends outside frame, be arranged with fixed cover on eccentric shaft, fixed cover extends the outer part of frame and is fixed on frame by the fixed cover screw, the end that eccentric shaft extends outside frame is equipped with regulating wheel by key, little endplay device one end is equipped with bracing or strutting arrangement, little endplay device is connected by the eccentric shaft in the axis hole of bracing or strutting arrangement and frame, the other end of little endplay device is connected with an end of big connecting rod mechanism by connecting axle, the big connecting rod mechanism other end is connected with knife rest, upper and lower eccentric adjustment drives respectively that upper and lower knife rest is done in opposite directions or the rightabout motion, makes the shears shearing edge gap on upper and lower knife rest reduce or increase.

Described blades of crank flying shears clearance adjustment method, its bracing or strutting arrangement comprises bearing, transparent cover, short spacer, sealing ring and long spacer, the forward and backward port place of one section of little endplay device all is installed with transparent cover, sealing ring is arranged in transparent cover, short spacer all is installed between forward and backward transparent cover and eccentric shaft, the relative side of forward and backward transparent cover all is equipped with bearing, between two bearings, long spacer is installed.

Owing to adopting technical scheme as above, the present invention has following superiority:

This shears blades space adjustment method and device, it is simple in structure, modern design, can be in the situation that do not take down scissors, rely on to rotate regulating wheel, so drive the eccentric shaft motion mode, and utilize the kinetic characteristic of crank connecting link, realize simultaneously upper and lower scissors in the horizontal direction with the synchronizing moving of vertical direction, make the gap of upper and lower shears shearing edge increase or reduce, effectively reduce the time of adjusting the shears shearing edge gap, convenient operation, easily realize accurate adjustment, improved production efficiency.

Description of drawings

Fig. 1 is the structural representation of the enforcement body of existing blades of crank flying shears clearance adjustment method;

Fig. 2 is structural representation of the present invention;

Fig. 3 be in Fig. 2 " A-A " to cutaway view;

In figure: the 1-knife rest; The vertical pad of 2-; The 3-screw; The 4-scissors; The horizontal pad of 5-; The 6-nut; The 7-bearing; The long spacer of 8-; The 9-transparent cover; The 10-fixed cover; 11-fixed cover screw; The 12-regulating wheel; The 13-key; The 14-eccentric shaft; 15-adjusts screw; The short spacer of 16-; The little endplay device of 17-; The 18-sealing ring; The 19-frame; The 20-connecting axle; 21-big connecting rod mechanism.

The specific embodiment

Below in conjunction with drawings and Examples, the present invention is described in further detail.

as Fig. 2, shown in 3, this shearing edge gap adjusting device, it comprises with upper, it is upper that lower slide connects, lower two cover eccentric adjustments, eccentric adjustment comprises eccentric shaft 14, regulating wheel 12, fixed cover 10, big connecting rod mechanism 21, little endplay device 17 and bracing or strutting arrangement, eccentric shaft 14 is arranged in the axis hole of frame 19 and an end extends outside frame, be arranged with fixed cover 10 on eccentric shaft 14, fixed cover 10 extends the outer part of frame and is fixed on frame 19 by fixed cover screw 11, the end that eccentric shaft 14 extends outside frame is connected and installed with regulating wheel by key 13, the integral body that little endplay device 17 is comprised of sleeve part and shaft portion, the sleeve part of little endplay device 17 is equipped with bracing or strutting arrangement, the sleeve part of little endplay device is connected by the eccentric shaft 14 in the axis hole of bracing or strutting arrangement and frame 19, the shaft portion of little endplay device is connected by the end of connecting axle 20 with big connecting rod mechanism 21, the other end of big connecting rod mechanism 21 is connected with knife rest 1, described device for adjusting shear blade gap of flying crank shear, its bracing or strutting arrangement comprises bearing 7, transparent cover 9, short spacer 16, sealing ring 18 and long spacer 8, before little endplay device 17 sleeves, the rear port place all is installed with transparent cover 9, sealing ring 18 is arranged in transparent cover 9, before, short spacer 16 all is installed between rear transparent cover 9 and eccentric shaft 14, before, the relative side of rear transparent cover 9 all is equipped with bearing 7, 7 of two bearings are equipped with long spacer 8, described shearing edge gap adjusting device.

During use, rotate regulating wheel 12, by key, eccentric shaft 14 is rotated, and then drive 17 motions of little endplay device, the connecting axle 20 that is connected to the shaft portion end of little endplay device is done the motion of certain rule along with the drive of connecting rod, simultaneously, be fixed on big connecting rod mechanism 21 band movable knife racks 1 motions above connecting axle 20, thereby realize adjusting the purpose of upper and lower shears shearing edge registration and blade clearance, when adjusting to needed blade clearance, regulating wheel 12 is fixed to above fixed cover 10 by adjusting screw 15.

Claims

1. blades of crank flying shears clearance adjustment method, it is characterized in that: the method is by installing on the frame of crank flying shear, lower two cover eccentric adjustments, on, lower two cover eccentric adjustments are respectively with upper, lower slide connects, eccentric adjustment is by eccentric shaft (14), regulating wheel (12), fixed cover (10), big connecting rod mechanism (21), little endplay device (17) and bracing or strutting arrangement form, eccentric shaft (14) is arranged in the axis hole of frame (19) and an end extends outside frame, be arranged with fixed cover (10) on eccentric shaft (14), fixed cover (10) extends the outer part of frame and is fixed on frame by fixed cover screw (11), the end that eccentric shaft (14) extends outside frame is equipped with regulating wheel by key (13), little endplay device (17) one ends are equipped with bracing or strutting arrangement, little endplay device is connected by the eccentric shaft (14) in the axis hole of bracing or strutting arrangement and frame, the other end of little endplay device is connected with an end of big connecting rod mechanism (21) by connecting axle (20), the big connecting rod mechanism other end is connected with knife rest (1), upper and lower eccentric adjustment drives respectively upper and lower knife rest work in opposite directions or the rightabout motion, makes the shears shearing edge gap minimizing on upper and lower knife rest or increases.

2. blades of crank flying shears clearance adjustment method according to claim 1, it is characterized in that: its bracing or strutting arrangement comprises bearing (7), transparent cover (9), short spacer (16), sealing ring (18) and long spacer (8), before little endplay device (17) one ends, the rear port place all is installed with transparent cover (9), sealing ring (18) is arranged in transparent cover (9), before, between rear transparent cover (9) and eccentric shaft (14), short spacer (16) is installed all, before, the relative side of rear transparent cover (9) all is equipped with bearing (7), between two bearings they (7), long spacer (8) is installed.