CN216420684U

CN216420684U - Movable supporting device for uncoiling shaft of cold rolling mill

Info

Publication number: CN216420684U
Application number: CN202123081317.7U
Authority: CN
Inventors: 孟军; 张来; 张新超; 于镇锋; 邓骠; 王涛
Original assignee: Chalco He'nan Luoyang Aluminum Processing Co ltd
Current assignee: Chalco He'nan Luoyang Aluminum Processing Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-05-03
Anticipated expiration: 2031-12-09

Abstract

The utility model provides a cold rolling mill uncoiling shaft's activity strutting arrangement, includes frame, swing support and supporting wheel, the frame is fixed to be set up in one side of uncoiling shaft cantilever end, and the swing support rotates and sets up in the frame to link to each other with the rotation actuating mechanism in the frame, be equipped with two supporting wheels on the swing support, the swing support has two extreme positions, support position and folding position respectively, when the swing support is in the support position, two supporting wheels support the cantilever end of uncoiling shaft from the below of uncoiling shaft and side, when the swing support is in folding position, two supporting wheels leave the uncoiling shaft, and the side of swing support is on a parallel with the axial of uncoiling shaft. The device can stably support the cantilever end of the uncoiling shaft on the premise of not influencing the coiling and uncoiling, and the uncoiling shaft is prevented from jumping in high-speed production.

Description

Movable supporting device for uncoiling shaft of cold rolling mill

Technical Field

The utility model belongs to the cold rolling mill field, concretely relates to movable support device of cold rolling mill uncoiling axle.

Background

In the actual production of the rolling mill, the rotation precision of the uncoiling shaft is the jumping amount of the uncoiling shaft, and the quality of the produced product is greatly influenced. However, in the design of the existing rolling mill, the uncoiling shaft is of a cantilever structure, the transmission end is driven by the reduction gearbox to rotate, and the other end is not provided with a supporting device. When a 10-ton heavy material coil is fed onto the opening shaft, a certain drooping amount can occur at the unsupported end of the opening shaft, so that the opening shaft can greatly jump under high-speed rotation, and finally the quality defects of movement, color difference, adhesion and the like of a strip material can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cold rolling mill uncoiling shaft's activity strutting arrangement through increasing the activity at uncoiling shaft cantilever end and supporting, under the prerequisite that does not influence the upper and coil stripping, can prevent that the uncoiling shaft from beating in high-speed production with uncoiling shaft cantilever end stable support.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a cold rolling mill uncoiling shaft's activity strutting arrangement, includes frame, swing support and supporting wheel, the frame is fixed to be set up in one side of uncoiling shaft cantilever end, and the swing support rotates and sets up in the frame to link to each other with the rotation actuating mechanism in the frame, be equipped with two supporting wheels on the swing support, the swing support has two extreme positions, support position and folding position respectively, when the swing support is in the support position, two supporting wheels support the cantilever end of uncoiling shaft from the below of uncoiling shaft and side, when the swing support is in folding position, two supporting wheels leave the uncoiling shaft, and the side of swing support is on a parallel with the axial of uncoiling shaft.

The supporting wheel is arranged on the swing bracket in a free rolling mode, and when the swing bracket is located at a supporting position, the rolling direction of the supporting wheel is the axial direction of the uncoiling shaft.

The swing bracket is rotatably connected with the rack through a vertically arranged rotating shaft.

The rotary driving mechanism is a linear driving mechanism, and an action executing end of the linear driving mechanism is hinged with the side face of the swing bracket.

The linear driving mechanism is a hydraulic cylinder.

The two support wheels form an included angle of 120 degrees.

The utility model has the advantages that: the utility model discloses increasing the activity at unwinding axle cantilever end and supporting, unloading the in-process of rolling up under and, the swing support swings folding position, does not influence unloading the book under and, and in production, the swing support can swing the support position, can prevent that unwinding axle cantilever end stable support from beating in high-speed production. According to the detection data, when the unwinding shaft is not supported, the jumping amount is 1 mm; the utility model discloses an under the effective supporting action, the runout volume is steerable within 0.3 mm. Therefore, the utility model discloses a movable support has improved the open scroll rotation precision to a certain extent to reduce because of the spool beats quality defects such as string that causes the strip appearance greatly, colour difference, glue and hinder, finally improved product quality.

In addition, two supporting wheels that this application set up can produce rolling friction with the axle of opening when the axle axial displacement of opening, do not influence the axial displacement of axle of opening to can also guarantee the directionality of axle axial displacement of opening.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

reference numerals: 1. the device comprises a hydraulic cylinder, 2, a frame, 3, a rotating shaft, 4, a swing support, 5, a supporting wheel, 501, a first supporting wheel, 502, a second supporting wheel, 6, an unwinding shaft, 601 and a cantilever end.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings and examples, but not to be construed as limiting the present invention in any way.

As shown in the figure, the movable supporting device for the uncoiling shaft of the cold rolling mill comprises a rack 2, a swinging support 4 and two supporting wheels 5, wherein the rack 2 is fixed on one side of a cantilever end 601 of the uncoiling shaft 6 of the cold rolling mill, two bearing seats which are coaxially arranged up and down are arranged on one side of the rack 2 facing the uncoiling shaft 6, a rotating shaft is matched and installed with bearings of the two bearing seats, one end of the swinging support 4 is fixedly connected with the rotating shaft 3, and therefore the swinging support 4 can rotate and swing by taking the rotating shaft 3 as a center; a rotary driving mechanism is also arranged on the side surface of the frame 2 to provide power for the rotary swing of the swing bracket 4; the swing bracket 4 has two limit positions, namely a support position and a folding position, when the swing bracket 4 is in the support position, the side surface of the swing bracket 4 is vertical to the axial direction of the unwinding shaft 6, and when the swing bracket 4 is in the folding position, the side surface of the swing bracket 4 is parallel to the axial direction of the unwinding shaft 6; a right-angle notch is formed in one end, opposite to the rotating shaft 3, of the swing support 4, the size of the right-angle notch is larger than the diameter of the shaft end of the cantilever end of the uncoiling shaft 6, a first supporting wheel 501 is installed on the horizontal plane of the right-angle notch, a second supporting wheel 502 which is obliquely arranged is installed on the vertical plane of the right-angle notch, and the included angle between the first supporting wheel 501 and the second supporting wheel 502 is 120 degrees; when the swing bracket 4 swings to the supporting position, the first supporting wheel 501 is located right below the unwinding shaft 6, and is in contact with the shaft surface of the end of the cantilever end 601 of the unwinding shaft 6, and supports the cantilever end 601 of the unwinding shaft 6 from below, and at this time, the second supporting wheel 502 is located on the side surface of the upper semicircle of the cantilever end 601 of the unwinding shaft 6, and is in contact with the upper semicircle shaft surface of the cantilever end 601 of the unwinding shaft 6, and the jumping of the unwinding shaft 6 is restrained from the other direction. When the swing bracket 4 swings to the supporting position, the rolling directions of the two supporting wheels 5 are both the axial directions of the uncoiling shaft 6, so that when the uncoiling shaft 6 moves axially, rolling friction is generated between the two supporting wheels 5 and the uncoiling shaft 6, the axial movement of the uncoiling shaft 6 is not influenced, and the directionality of the axial movement of the uncoiling shaft 6 is ensured.

Furthermore, the rotation driving mechanism is a mechanism capable of realizing linear driving, such as a hydraulic cylinder, an electric cylinder, a gear mechanism, and the like, and the embodiment adopts a hydraulic cylinder driving mode. The cylinder body of the hydraulic cylinder 1 is fixed on the frame 2, and the piston rod of the hydraulic cylinder 1 is hinged with the connecting rod on the side surface of the swing bracket 4. When a piston rod of the hydraulic cylinder 1 extends out, the swing bracket 4 is pushed to rotate towards the unwinding shaft 6 until the side surface of the swing bracket 4 is parallel to the piston rod, and at the moment, the side surface of the swing bracket 4 is vertical to the unwinding shaft 6 and is positioned at a supporting position; when the piston rod of the hydraulic cylinder 1 is retracted, the swing bracket 4 is pulled away from the unwinding shaft 6 until the side surface of the swing bracket 4 is parallel to the unwinding shaft 6, and the swing bracket 4 is in the folded position.

Furthermore, the swing support 4 is a welding part formed by welding a plate and section steel.

The working process of the utility model is as follows: in the process of up and down coil unloading, the swing bracket 4 needs to be pulled back to the folding position in order to not influence the up and down coil unloading; before the unwinding shaft 6 is ready to be started for production, the swing bracket 4 is pushed to the supporting position through the hydraulic cylinder 1, so that the wheel surfaces of the two supporting wheels 5 are in contact with the shaft surface of the cantilever end 601 of the unwinding shaft 6, and in the high-speed rotation of the unwinding shaft 6, the two supporting wheels 5 provide effective support for the unwinding shaft 6, the jumping of the unwinding shaft 6 is reduced, and the quality of products is improved.

The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the embodiments of the present invention can be modified or replaced with equivalents with reference to the above embodiments, and any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention are all within the scope of the claims of the present application.

Claims

1. The utility model provides a cold rolling mill uncoiling shaft's activity strutting arrangement which characterized in that: including frame, swing support and supporting wheel, the frame is fixed to be set up in one side of the axle cantilever end of opening, and the swing support rotates and sets up in the frame to link to each other with the rotation actuating mechanism in the frame, be equipped with two supporting wheels on the swing support, the swing support has two extreme positions, support position and folding position respectively, when the swing support is in the support position, the cantilever end of axle is opened from the below and the side support of axle of opening to two supporting wheels, when the swing support is in folding position, two supporting wheels leave the axle of opening, and the side of swing support is on a parallel with the axial of axle of opening.

2. The movable supporting device for the decoiling shaft of the cold rolling mill according to claim 1, characterized in that: the supporting wheel is arranged on the swing bracket in a free rolling mode, and when the swing bracket is located at a supporting position, the rolling direction of the supporting wheel is the axial direction of the uncoiling shaft.

3. The movable supporting device for the decoiling shaft of the cold rolling mill according to claim 1, characterized in that: the swing bracket is rotatably connected with the rack through a vertically arranged rotating shaft.

4. The movable supporting device for the decoiling shaft of the cold rolling mill according to claim 1, characterized in that: the rotary driving mechanism is a linear driving mechanism, and an action executing end of the linear driving mechanism is hinged with the side face of the swing bracket.

5. The movable supporting device for the decoiling shaft of the cold rolling mill according to claim 4, characterized in that: the linear driving mechanism is a hydraulic cylinder.

6. The movable supporting device for the decoiling shaft of the cold rolling mill according to claim 1, characterized in that: the two support wheels form an angle of 120 deg..