CN211360070U

CN211360070U - Stop device for roll changing of rolling mill

Info

Publication number: CN211360070U
Application number: CN202020014934.1U
Authority: CN
Inventors: 圣立芜; 汪杰; 黄琦; 吴湄庄; 夏勐; 何军委; 耿鹏
Original assignee: Maanshan Iron and Steel Co Ltd
Current assignee: Maanshan Iron and Steel Co Ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-08-28
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a detent for rolling mill roll change, include: the clamping groove is connected to the bottom of the front end of the roll changing vehicle; the hook head is connected to the moving plate, one side face of the hook head is a plane which can be attached to the inner side face of the clamping groove, and the upper end of the hook head is divided into a plane and an inclined plane; the locking device is characterized in that a vertical downward vertical hole is formed in the inclined plane of the hook head, a through hole corresponding to the vertical hole is formed in the top surface of the clamping groove, the locking device further comprises a cylindrical bolt, the lower end of the bolt can penetrate through the through hole in the clamping groove and extend into the vertical hole of the hook head, and the upper end of the bolt is connected with the handle. The utility model discloses simple structure, it is convenient to use, can let gib head and draw-in groove even as an organic whole or separation as required, makes gib head push-and-pull roll changing car advance and retreat freely, has practiced thrift the roll changing time, has improved production efficiency.

Description

Stop device for roll changing of rolling mill

Technical Field

The utility model belongs to the technical field of the hot rolling production, especially, relate to a detent for rolling mill roll change.

Background

In the maintenance process of hot rolling production, the roller is frequently required to be replaced, the roller replacing method at present is to place the roller on a roller replacing vehicle, insert a hook head arranged on a movable plate into a clamping groove at the bottom of the front end of the roller replacing vehicle, pull the roller replacing vehicle to move, so that the roller on the roller replacing vehicle is pushed into a roller replacing window, when the roller replacing vehicle reaches a preset position, the hook head positioned in the clamping groove stops the roller replacing vehicle, and then the roller replacing is carried out. However, the stop devices (i.e. the locking grooves and the hooks) used at present have certain defects, and when the roller is pushed into the window of the frame by too much stroke, the adjustment is needed, and the adjustment usually needs to be carried out through the following processes: break away from gib head and draw-in groove, rotate the gib head 180 back and insert the draw-in groove with the gib head again, the pulling roll changing car is retreated, and the process of above-mentioned adjustment often need reciprocate to carry out the roll change work that just can accomplish many times, and is time-consuming, hard, and the roll change is long, seriously influences production efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problem, the utility model provides a detent for rolling mill roll change, the device simple structure, it is convenient to use, can as required, lets gib head and draw-in groove even as an organic whole or separate, makes gib head push-and-pull roll change car advance and retreat freely, has practiced thrift the roll change time, has improved production efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions, including:

the clamping groove is connected to the bottom of the front end of the roll changing vehicle; the hook head is connected to the moving plate, one side face of the hook head is a plane which can be attached to the inner side face of the clamping groove, and the upper end of the hook head is divided into a plane and an inclined plane; the locking device is characterized in that a vertical downward vertical hole is formed in the inclined plane of the hook head, a through hole corresponding to the vertical hole is formed in the top surface of the clamping groove, the locking device further comprises a cylindrical bolt, the lower end of the bolt can penetrate through the through hole in the clamping groove and extend into the vertical hole of the hook head, and the upper end of the bolt is connected with the handle.

The connection is welding.

The utility model relates to a detent for rolling mill roll change, the device simple structure, it is convenient to use, can let gib head and draw-in groove even as an organic whole or separation as required, makes gib head push-and-pull roll change car advance and retreat freely, has practiced thrift the roll change time, has improved production efficiency.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the structure of the utility model with a partial section.

FIG. 3 is a schematic front view of the roll-changing stopping device of the original rolling mill in operation.

Detailed Description

In order to make the technical personnel in this field have a clearer understanding of the present invention, the operation of the roll-changing stopping device of the original rolling mill will be briefly described.

As shown in fig. 3, during roll changing, the movable plate 13 moves to the left, the left plane of the hook head 14 is attached to the left inner side surface of the clamping groove 12, so as to drive the roll changing carriage 11 to move to the left, the rolls placed on the roll changing carriage move to the left at the same time, if the left moving process of the roll changing carriage is too large and exceeds the roll changing window, the adjustment must be performed, at this time, the movable plate needs to be pulled to move to the right, because the inclined end surface of the hook head is squeezed by the lower edge of the right side wall of the clamping groove, the hook head sinks under the elasticity of the elastic device at the bottom of the hook head, the hook head slides out of the clamping groove, the hook head rotates 180 degrees manually and then moves to the left, the hook head slides into the clamping groove again through the inclined surface at the end part of the hook head, the. Such adjustments often fail once and often require multiple iterations.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the present invention includes: a clamping groove 2 connected to the bottom of the front end of the roll changing trolley 1; the hook head 4 is connected to the moving plate 3, one side face of the hook head is a plane which can be attached to the inner side face of the clamping groove, and the upper end of the hook head is divided into a plane and an inclined plane; the locking device is characterized in that a vertical downward vertical hole is formed in the inclined plane of the hook head, a through hole corresponding to the vertical hole is formed in the top surface of the clamping groove, the locking device further comprises a cylindrical bolt 5, the lower end of the bolt can penetrate through the through hole in the clamping groove and extend into the vertical hole of the hook head, and the upper end of the bolt is connected with a handle 6.

The connection is welding.

As shown in fig. 2, during roll changing, when the utility model discloses a gib head 4 slides in draw-in groove 2 after, passes through the through-hole on the draw-in groove with bolt 5 and stretches into in the perpendicular downthehole of gib head, makes gib head and draw-in groove detachable be connected, at this moment, no matter movable plate moves left or moves right, the gib head can not break away from the draw-in groove, consequently can be convenient adjustment roll changing car's detent position to make the roll location at the roll changing window.

Claims

1. A stop device for roll changing of a rolling mill comprises a clamping groove (2) connected to the bottom of the front end of a roll changing trolley (1); the hook head (4) is connected to the moving plate (3), one side face of the hook head is a plane which can be attached to the inner side face of the clamping groove, and the upper end of the hook head is divided into a plane and an inclined plane; the method is characterized in that: the locking device is characterized in that a vertical downward vertical hole is formed in the inclined plane of the hook head, a through hole corresponding to the vertical hole is formed in the top surface of the clamping groove, the locking device further comprises a cylindrical bolt (5), the lower end of the bolt can penetrate through the through hole in the clamping groove and extend into the vertical hole of the hook head, and the upper end of the bolt is connected with a handle (6).

2. A stop device according to claim 1, wherein: the connection is welding.