CN216937703U

CN216937703U - Automatic head-releasing device of rolling mill

Info

Publication number: CN216937703U
Application number: CN202123426820.1U
Authority: CN
Inventors: 李广亮
Original assignee: Zhongzhong Science and Technology Tianjin Co Ltd
Current assignee: Zhongzhong Science and Technology Tianjin Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-12
Anticipated expiration: 2031-12-31

Abstract

The invention provides an automatic head-disengaging device of a rolling mill, which comprises a support and a swing arm hinged with the support, wherein the swing arm is an L-shaped arm and comprises a cross arm and a vertical arm, the cross arm is hinged with the support, the vertical arm is fixedly arranged at the end part of the cross arm, the upper end of the vertical arm is fixedly connected with the cross arm, and a top push block is fixedly arranged above one end, far away from the vertical arm, of the cross arm; the vertical arm is correspondingly provided with a power assembly for driving the swing arm to rotate around the hinged part. The automatic head-removing device for the rolling mill solves the problems that production rhythm is influenced, time and labor are consumed and the like due to the fact that a universal rolling mill needs to be removed by inserting and pulling a plugboard manually when rolls are changed, rolling efficiency is improved, and automation of a rolling process is improved.

Description

Automatic head-releasing device of rolling mill

Technical Field

The invention belongs to the technical field of roller changing of rolling mills, and particularly relates to an automatic head-disengaging device of a rolling mill.

Background

Hot rolled section steel is widely used because it exhibits excellent mechanical properties in the fields of civil buildings, industrial buildings, bridge construction, petroleum industry, high-rise buildings, underground railways, mine roadways, industrial steel structural members, and the like. With the rapid development of economy in China, the requirements on the yield and quality of section steel are increased day by day, and higher requirements are applied to a section steel production line. Along with the wide application of H-shaped steel in various fields, H-shaped steel rolling mills are gradually developed and perfected, and are developed from the original memorial archway type universal rolling mill to the existing connecting plate type universal rolling mill, short stress path universal rolling mill and prestressed universal rolling mill, and compared with the existing universal rolling mill, the H-shaped steel rolling mills have higher rigidity, better mechanical property, more economy and lightness.

With the development of the rolling process, the requirements on the automation of roll changing of the universal mill are higher and higher, the modern universal mill has high rolling speed, large rolling load and very frequent roll changing times, and the length of the roll changing time is very important for improving the product yield. The roller of the rolling mill is continuously worn in the rolling process, and the geometric dimension and the pass are changed after the roller is worn. In order to ensure the quality of rolled stock, the roller needs to be replaced, but the roller replacement time is long, the operation of personnel is inconvenient, the automation is not high, and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an automatic head-disengaging device for a rolling mill, so as to solve the problems of long roll changing time and inconvenient operation of personnel in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an automatic head-disengaging device of a rolling mill comprises a support and a swing arm hinged with the support, wherein the swing arm is an L-shaped arm, the swing arm comprises a cross arm and a vertical arm, the cross arm is hinged with the support, the vertical arm is fixedly arranged at the end part of the cross arm, the upper end of the vertical arm is fixedly connected with the cross arm, and a top push block is fixedly arranged above one end, far away from the vertical arm, of the cross arm;

the vertical arms are correspondingly provided with power assemblies for driving the swing arms to rotate around the hinged positions.

Furthermore, the upper part of one end of the cross arm, which is adjacent to the vertical arm, is hinged with the support through a first shaft.

Furthermore, a first bushing is arranged between the first shaft and the swing arm.

Furthermore, the power assembly comprises a hydraulic cylinder, a cylinder body of the hydraulic cylinder is fixedly connected with the rotating shaft, the rotating shaft is rotatably installed on the support, and the end part of a hydraulic rod of the hydraulic cylinder is hinged to the vertical arm through a second shaft.

Furthermore, end covers are arranged at two ends of the rotating shaft, a shaft hole corresponding to the rotating shaft is formed in the center of each end cover, the end part of the rotating shaft is placed in the shaft hole, and a second bushing is arranged between the rotating shaft and each end cover;

the end cover is fixedly connected with the support.

Compared with the prior art, the automatic head-removing device of the rolling mill has the following beneficial effects:

the automatic head-removing device for the rolling mill solves the problems that production rhythm is influenced, time and labor are consumed and the like due to the fact that a universal rolling mill needs to be removed by inserting and pulling a plugboard manually when rolls are changed, rolling efficiency is improved, and automation of a rolling process is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:

FIG. 1 is a structural diagram of an automatic head removing device of a rolling mill according to the invention;

fig. 2 is a structural diagram of the automatic head-disengaging device of the rolling mill in the invention before and after operation.

Reference numerals:

1. swinging arms; 2. a support; 3. a first shaft; 4. a first bushing; 5. a second shaft; 6. a second bushing; 7. a hydraulic cylinder; 8. and (4) end covers.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

As shown in fig. 1, the automatic head-releasing device of the rolling mill comprises a support 2 and a swing arm 1 hinged with the support 2, wherein the swing arm 1 is an L-shaped arm, the swing arm 1 comprises a cross arm and a vertical arm, the cross arm is hinged with the support 2, the vertical arm is fixedly arranged at the end part of the cross arm, the upper end of the vertical arm is fixedly connected with the cross arm, and a top push block is fixedly arranged above one end, far away from the vertical arm, of the cross arm; the vertical arm is correspondingly provided with a power assembly for driving the swing arm 1 to rotate around the hinged part. The upper part of one end of the cross arm, which is adjacent to the vertical arm, is hinged with the support 2 through a shaft I3.

And a first bushing 4 is arranged between the first shaft 3 and the swing arm 1, so that the effects of lubrication and abrasion resistance are achieved.

The power assembly comprises a hydraulic cylinder 7, a cylinder body of the hydraulic cylinder 7 is fixedly connected with a rotating shaft, the rotating shaft is rotatably installed on the support 2, the end part of a hydraulic rod of the hydraulic cylinder 7 is hinged with the vertical arm through a second shaft 5, other power assemblies can be adopted besides the hydraulic cylinder 7, and for example, the air cylinder or the motor is matched with the cam to drive the swing arm 1 to swing.

End covers 8 are arranged at two ends of the rotating shaft, a shaft hole corresponding to the rotating shaft is formed in the center of each end cover 8, the end part of the rotating shaft is placed in the shaft hole, and a second bushing 6 is arranged between the rotating shaft and each end cover 8; the end cover 8 is fixedly connected with the support 2.

The working process comprises the following steps:

as shown in figure 2, when the rolling mill needs to replace a roller, the universal rolling mill is pushed to a roller-changing transverse moving position by the roller-changing hydraulic cylinder 7, the roller-changing hydraulic cylinder 7 is separated from the universal rolling mill after the roller-changing hydraulic cylinder 7 pushes the universal rolling mill to the position, but because the roller-changing hydraulic cylinder 7 and the universal rolling mill are connected by inserting plates, the prior art adopts people to pull out the inserting plates, which wastes time and labor, and prolongs the whole roller-changing period.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solution depart from the scope of the technical solution of the embodiments of the present invention, and the technical solution is covered by the claims and the specification of the present invention.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. Automatic head device that takes off of rolling mill, its characterized in that: the universal roll changing hydraulic cylinder comprises a support and a swing arm hinged with the support, wherein the swing arm is an L-shaped arm, the swing arm comprises a transverse arm and a vertical arm, the transverse arm is hinged with the support, the vertical arm is fixedly arranged at the end part of the transverse arm, the upper end of the vertical arm is fixedly connected with the transverse arm, a pushing block is fixedly arranged above one end, away from the vertical arm, of the transverse arm, and the pushing block is used for pushing out a plugboard between the roll changing hydraulic cylinder and the universal rolling mill;

the vertical arm is correspondingly provided with a power assembly for driving the swing arm to rotate around the hinged part.

2. The automatic head-removing device of a rolling mill according to claim 1, characterized in that: and the upper part of one end of the cross arm, which is adjacent to the vertical arm, is hinged with the support through a first shaft.

3. The automatic head removing device of a rolling mill according to claim 2, characterized in that: and a first bushing is arranged between the first shaft and the swing arm.

4. The automatic head removing device of a rolling mill according to claim 1, wherein: the power assembly comprises a hydraulic cylinder, a cylinder body of the hydraulic cylinder is fixedly connected with the rotating shaft, the rotating shaft is rotatably installed on the support, and the end part of a hydraulic rod of the hydraulic cylinder is hinged with the vertical arm through a second shaft.

5. The automatic head removing device of a rolling mill according to claim 4, wherein: end covers are arranged at two ends of the rotating shaft, a shaft hole corresponding to the rotating shaft is formed in the center of each end cover, the end part of the rotating shaft is placed in the shaft hole, and a second bushing is arranged between the rotating shaft and each end cover;

the end cover is fixedly connected with the support.