CN105618489A

CN105618489A - Replacing device for backup roll on heavy and medium plate mill

Info

Publication number: CN105618489A
Application number: CN201610215731.7A
Authority: CN
Inventors: 陈功彬; 戴文笠; 丁克; 曾明波; 姜海军; 刘金波; 唐菊; 谢利锋; 赵磊; 余文杰; 曹庆林
Original assignee: Shaogang Songshan Co Ltd Guangdong
Current assignee: SGIS Songshan Co Ltd; Shaogang Songshan Co Ltd Guangdong
Priority date: 2016-04-09
Filing date: 2016-04-09
Publication date: 2016-06-01

Abstract

The invention relates to a replacing device for a backup roll on a heavy and medium plate mill. The replacing device comprises a replacing device body, wherein the replacing device body is provided with idler wheels and upper and lower frames; the idler wheels are used for conveying the device in idle to and out of a rolling mill geteway; a guiding slide plate which can drive the upper and lower frames to move relatively smoothly is designed between the upper and lower frames; a spiral jacket is arranged at each of the two ends of the replacing device body. The high-efficient replacement of the backup roll on the rolling mill is realized; the device can enter into and come out of the rolling mill gateway by replacing the rail of the working roll, and the operation is convenient and quick; the device is simple in structure, stable and reliable in work, convenient in operation and maintenance and high in use efficiency.

Description

A kind of plate mill upper backup roll more changing device

Technical field

The invention belongs to metallurgical machinery equipment technical field, it relates to a kind of plate mill upper backup roll more changing device.

Background technology

In hot rolled steel plate factory, milling train supporting roll weight is big, and a lot of milling train supporting roll substance is all more than 100 tons, and the replacing of milling train supporting roll is all more difficult, and particularly the replacing of upper backup roll is more difficult. Some replacing instrument existing, or project organization is complicated; Or needing first to pull out lower backing roll to be lifted on lower backing roll by special tool again to be sent into mill housing, then pull out upper backup roll, efficiency is low. Prior art deficiency is: it is inconvenient that milling train upper backup roll changes tool construction complexity, fault is many, operation is safeguarded, it may also be useful to efficiency is low.

Summary of the invention

In order to overcome the above-mentioned shortcoming of prior art, the present invention provides a kind of plate mill upper backup roll more changing device, and it has, and structure is simple, reliable and stable, convenient operating maintenance, and the feature such as service efficiency height.

The technical solution adopted for the present invention to solve the technical problems is: a kind of plate mill upper backup roll more changing device, comprise replacing device body, body passes in and out roller and the upper and lower frames of mill housing when having for carrying this device unloaded, between upper frame and lower framework, it is designed with the relative movement guiding fin smoothly that can make between upper and lower frames, respectively it is provided with a screw jack at the two ends of body.

Outside described screw jack, it is furnished with pneumatic motor, connects by rigid water hammer axle 10 between pneumatic motor and two screw jack, thus the lifting ensureing two ends is synchronous.

The invention has the beneficial effects as follows: the efficient replacing that can realize milling train upper backup roll, this device changes track turnover mill housing by working roll, convenient and swift, and this apparatus structure is simple, reliable and stable, convenient operating maintenance, it may also be useful to efficiency height.

Accompanying drawing explanation

Fig. 1 side-view of the present invention;

Fig. 2 is front view of the present invention;

Fig. 3 is the view that the present invention passes in and out mill housing;

Fig. 4 is the view that the present invention replaces with supporting roll.

In figure: 1-lower backing roll bearing, 2-upper frame, 3-upper backup roll bearing support, 4-upper backup roll, 5-guiding fin, 6-roller, track changed by 7-working roll, 8-lower backing roll, 9-screw jack, the synchronous axle of 10-, 11-pneumatic motor, 12-card groove one, framework under 13-, 14-mill balancing beam, 15-card groove two, 16-preset pieces two, 17-lower backing roll changes track, 18-preset pieces one.

Embodiment

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

See Fig. 1��Fig. 4, a kind of plate mill upper backup roll 4 more changing device, comprise replacing device body, body passes in and out roller 6 and the upper and lower frames 13 of mill housing when having for carrying this device unloaded, between upper frame 2 and lower framework 13, it is designed with relative movement guiding fin 5 smoothly that can make between upper and lower frames 13, respectively it is provided with a screw jack 9 at the two ends of body.

Outside described screw jack 9, it is furnished with pneumatic motor 11, connects by rigid water hammer axle 10 between pneumatic motor 11 and two screw jack 9, thus the lifting ensureing two ends is synchronous.

During actual use, screw jack 9 screw mandrel retracted state, lower backing roll bearing 1 is located in lower backing roll and changes on track 17, this device is under rolling mill work roller replacement device drives, change track 7 along working roll and enter mill housing, arrive position, now, upper backup roll 4 is in upper under the driving of mill balancing beam 14, has enough gaps to interfere between preset pieces 2 16 and card groove 2 15.

When pneumatic motor 11 starts, screw jack 9 is driven to start lifting by synchronous axle 10, lower framework 13 starts decline, after preset pieces 1 enters card groove 1, under the driving of screw block, upper frame 2 starts to rise, roller 6 is changed track 7 with working roll and is separated, now, by mill balancing beam 14, upper backup roll 4 is being put down, preset pieces 2 16 and card groove 2 15 is made to complete location, upper backup roll bearing support 3 drops on upper frame 2 completely, upper backup roll bearing support 3 is separated with mill balancing beam 14, at this moment, can start milling train upper backup roll 4 is pulled out mill housing to specified location together with milling train lower backing roll 8, old upper backup roll 4 is transferred, new upper backup roll 4 is dropped on the upper frame 2 of upper backup roll 4 more changing device, again according to the order that pull-out upper backup roll 4 is contrary, what complete upper backup roll 4 returns dress.

Claims

1. a plate mill upper backup roll more changing device, comprise replacing device body, it is characterized in that: roller and the upper and lower frames passing in and out mill housing when body has for carrying this device unloaded, between upper frame and lower framework, it is designed with the relative movement guiding fin smoothly that can make between upper and lower frames, respectively it is provided with a screw jack at the two ends of body.

2. plate mill upper backup roll more changing device as claimed in claim 1, it is characterized in that: outside described screw jack, be furnished with pneumatic motor, connect by rigid water hammer axle 10 between pneumatic motor and two screw jack, thus the lifting ensureing two ends is synchronous.