CN204194441U

CN204194441U - A kind of novel roughing centring roll

Info

Publication number: CN204194441U
Application number: CN201420600764.XU
Authority: CN
Inventors: 彭冬; 潘大辉
Original assignee: BAOSTEEL DESHENG STAINLESS STEEL Co Ltd
Current assignee: BAOSTEEL DESHENG STAINLESS STEEL Co Ltd
Priority date: 2014-10-17
Filing date: 2014-10-17
Publication date: 2015-03-11
Anticipated expiration: 2024-10-17

Abstract

The utility model provides a kind of novel roughing centring roll, comprise roll shaft, be sheathed on roll body outside roll shaft and transmission mechanism, transmission mechanism is connected to form successively by motor, reductor, the first shaft coupling, buffer shaft, the second shaft coupling, and the second shaft coupling is connected and fixed with roll shaft either end again.The utility model be a kind of structure simple, decelerator and motor damage can be avoided, and the novel roughing centring roll that transmission is effective.

Description

A kind of novel roughing centring roll

Technical field

The utility model belongs to steel rolling equipment field, especially a kind of roughing centring roll.

Background technology

In equipment of Hot Strip Mill production process, in order to prevent deflecting of workpiece in the operation of rolling, be respectively arranged with centralising device roughing mill is forward and backward, the centring roll that forward and backward centralising device distributes by some side-by-side parallel and transmission device composition, the transmission device of every root centring roll forms by motor, decelerator and shaft coupling, motor drives reductor, and reductor drives corresponding centering roll shaft and centring roll to rotate by shaft coupling again.But, there is following problem in existing centralising device: the impulsive force to centring roll produced in (1) operation of rolling, its transmission device can be directly passed to, be easy to cause reductor to damage, especially " kowtowing " phenomenon that in the operation of rolling, strip plastic deformation produces, make centring roll be in heavy duty state, amount of deflection is large, larger to the impulsive force of reductor, very easily damage reductor; (2) through the temperature of the hot steel billet of centring roll close to 1100 DEG C, the heat of hot steel billet is easily by centring roll, centering roll shaft, shaft coupling, pass to reductor and motor fast, decelerator and motor are very easily damaged, also cause the high temperature of personnel during repairing to threaten.

Summary of the invention

The utility model aim to provide a kind of structure simple, decelerator and motor damage can be avoided, and the novel roughing centring roll that transmission is effective.

A kind of novel roughing centring roll, comprise roll shaft, be sheathed on roll body outside roll shaft and transmission mechanism, transmission mechanism is connected to form successively by motor, reductor, the first shaft coupling, buffer shaft, the second shaft coupling, and the second shaft coupling is connected and fixed with roll shaft either end again.

Compared with directly connecting with reductor with prior art central roll shaft end, the utility model by increasing the design of buffer shaft and the second shaft coupling between the first shaft coupling and roll shaft, roll shaft end is bent and passes to buffer shaft, the sequential transmissions of buffer shaft and the second shaft coupling can play certain aligning effect, eliminate the impulsive force that roll shaft passes to reductor, in addition, buffer shaft and the second shaft coupling are by decelerator and roll body and roll shaft from a distance, decelerator is passed to the heat of hot steel billet and motor serves partition effect, effectively avoid the infringement of decelerator and motor.

First and second shaft coupling preferably adopts gear coupling, and gear coupling radial dimension is little, and bearing capacity is large, and be more suitable for the axle system transmission for low-speed heave-load working condition, high accuracy also can be used for high-speed drive through dynamically balanced gear coupling.

The length of buffer shaft is preferably 1300 ~ 1400mm, can play preferably to cushioning effect and the heat-blocking action of impulsive force, meanwhile, also as far as possible by the cut to lengthen of buffer shaft in more among a small circle, reduce the waste to space.

Accompanying drawing explanation

fig. 1 is structural representation of the present utility model.

Detailed description of the invention

Now illustrate embodiment of the present utility model by reference to the accompanying drawings:

As shown in Figure 1, a kind of novel roughing centring roll, comprise roll shaft 1, be sheathed on roll body 10 outside roll shaft 1 and transmission mechanism 20, transmission mechanism 20 is connected to form successively by motor 21, reductor 22, first shaft coupling 23, buffer shaft 24, second shaft coupling 25, and the second shaft coupling 25 is connected and fixed with roll shaft 1 either end again.

Compared with directly connecting with reductor with prior art central roll shaft end, the utility model by increasing the design of buffer shaft 24 and the second shaft coupling 25 between the first shaft coupling 23 and roll shaft 1, roll shaft 1 end is bent and passes to buffer shaft 24, the sequential transmissions of buffer shaft 24 and the second shaft coupling 25 can play certain aligning effect, eliminate the impulsive force that roll shaft 1 passes to reductor 22, in addition, buffer shaft 24 and the second shaft coupling 25 are by decelerator 22 and roll body 10 and roll shaft 1 from a distance, decelerator 22 is passed to the heat of hot steel billet and motor 24 serves partition effect, effectively avoid the infringement of decelerator 22 and motor 21.

First and second shaft coupling (23,25) preferably adopts gear coupling (such as CLZ4 cog-wheel coupling, GICLZ drum-shaped tooth type shaft coupling etc.), gear coupling radial dimension is little, bearing capacity is large, be more suitable for the axle system transmission for low-speed heave-load working condition, high accuracy also can be used for high-speed drive through dynamically balanced gear coupling.

The length of buffer shaft 24 is preferably 1300 ~ 1400mm, can play preferably to cushioning effect and the heat-blocking action of impulsive force, meanwhile, also as far as possible by the cut to lengthen of buffer shaft 24 in more among a small circle, reduce the waste to space.

Roughing centring roll structure of the present utility model is applicable to iron and steel metallurgy hot rolling roughing and forward and backward contraposition roller, is also applicable to the contraposition roller of other contraposition roller-ways, and it has applied widely, long service life, advantage that drive coordination is good.

Claims

1. a novel roughing centring roll, comprise roll shaft, be sheathed on roll body outside roll shaft and transmission mechanism, transmission mechanism is connected to form successively by motor, reductor, the first shaft coupling, buffer shaft, the second shaft coupling, and the second shaft coupling is connected and fixed with roll shaft either end again.

2. a kind of novel roughing centring roll according to claim 1, is characterized in that: first and second shaft coupling adopts gear coupling.

3. a kind of novel roughing centring roll according to claim 1, is characterized in that: the length of buffer shaft is 1300 ~ 1400mm.