CN115401256A

CN115401256A - Rolling-cut type roller flying shear

Info

Publication number: CN115401256A
Application number: CN202211162920.4A
Authority: CN
Inventors: 郑祥臣; 唐文; 周云根; 杨国良; 张翼; 朱彪
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-11-29
Also published as: WO2024060580A1

Abstract

The invention relates to a rolling-cut type roller flying shear, which comprises a rack and a rolling-cut roller, wherein the axis of the rolling-cut roller is parallel to an upper roller and a lower roller which are oppositely arranged, the upper roller and the lower roller are opposite in rotation direction so as to form a rolling conveying channel between the upper roller and the lower roller through clamping of the upper roller and the lower roller, an upper cutting edge is fixedly arranged on the excircle side of the upper roller, a lower cutting edge is fixedly arranged on the excircle side of the lower roller, the upper cutting edge is a curve extending structure which obliquely extends from one axial end of the upper roller to the other end along the excircle of the upper roller, the lower cutting edge is a curve extending structure which obliquely extends from one axial end of the lower roller to the other end along the excircle of the lower roller, and the lower cutting edge and the upper cutting edge are oppositely arranged in alignment and obliquely rotate in opposite directions, so that the lower cutting edge and the upper cutting edge can be engaged with the rotation of the upper roller and the lower roller when the upper roller and the lower roller rotate, and strip steel sent between the upper roller and the lower roller is sheared.

Description

Rolling-cut type roller flying shear

Technical Field

The invention relates to a metallurgical steel rolling machine, in particular to a rolling-cut roller flying shear.

Background

In the metallurgical industry, flying shears are important equipment for shearing strip steel, and the performance of the flying shears directly influences the production efficiency of a rolling production line. At present, link rod type flying shears are mainly adopted in a strip steel continuous production processing line, and the link rod type flying shears are not suitable for scenes needing high-speed shearing of strip steel due to large moment of inertia.

Disclosure of Invention

Therefore, in order to solve the problems, the invention provides a rolling-cut roller flying shear which can realize high-speed shearing of strip steel.

The invention is realized by adopting the following technical scheme:

the invention provides a rolling-cut type roller flying shear which comprises a rack and a rolling-cut roller, wherein the axis of the rolling-cut roller is parallel to an upper roller and a lower roller which are arranged oppositely, the upper roller and the lower roller are opposite in rotation direction so as to form a rolling conveying channel between the upper roller and the lower roller through clamping of the upper roller and the lower roller, an upper cutting edge is fixedly arranged on the outer circle side of the upper roller, a lower cutting edge is fixedly arranged on the outer circle side of the lower roller, the upper cutting edge is a curve extending structure which obliquely extends from one axial end of the upper roller to the other end along the outer circle of the upper roller, the lower cutting edge is a curve extending structure which obliquely extends from one axial end of the lower roller to the other end along the outer circle of the lower roller, and the lower cutting edge and the upper cutting edge are oppositely arranged in alignment and obliquely rotate in opposite directions, so that the lower cutting edge and the upper cutting edge can be engaged with the rotation of the upper roller and the lower roller when the upper roller and the lower roller rotate, and strip steel sent between the upper roller and the lower roller is sheared.

Preferably, the inclination angle of the upper shear blade on the outer circle of the upper roller and the inclination angle of the lower shear blade on the outer circle of the lower roller are 1-3 degrees.

Wherein, preferably, the device also comprises a driving device and a bevel gear anti-backlash device, wherein the driving device provides rotating power for the upper roller and the lower roller, and the bevel gear anti-backlash device is coupled between the driving device and the rolling cutting roller so as to eliminate the transmission clearance of the driving device to the upper roller and the lower roller.

Preferably, the driving device comprises a main motor, a band-type brake, a speed reducer and a coupler which are sequentially connected in a transmission manner.

Preferably, the helical gear backlash eliminating device comprises a main transmission helical gear, a transmission helical gear and a backlash eliminating helical gear.

The invention has the following beneficial effects: the invention realizes the shearing of the strip steel by means of the rotation of the upper roller and the lower roller, so that the rolling-cut roller flying shear can be suitable for the high-speed shearing environment.

Drawings

FIG. 1 is a front view of a roll-cutting drum flying shear of an embodiment;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a top view of the embodiment of the roller shear.

Detailed Description

To further illustrate the various embodiments, the present invention provides the accompanying figures. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The invention will now be further described with reference to the drawings and the detailed description.

Referring to fig. 1 to 3, as a preferred embodiment of the present invention, there is provided a roller shear, which includes a frame 1, a roller cutting roller 2, a driving device 4 and a bevel gear backlash eliminating device 3.

The rolling cutting drum 2 comprises an upper drum 21 and a lower drum 23, the axes of the upper drum 21 and the lower drum 23 are parallel and are arranged oppositely, the upper drum 21 and the lower drum 23 rotate oppositely to form a rolling conveying channel between the upper drum 21 and the lower drum through clamping of the upper drum 21 and the lower drum 23, an upper cutting edge 22 is fixedly arranged on the outer circle side of the upper drum 21, a lower cutting edge 24 is fixedly arranged on the outer circle side of the lower drum 23, the upper cutting edge 22 is a curve extending structure which obliquely extends from one axial end of the upper drum 21 to the other end along the outer circle of the upper drum 21, or the extending curve of the upper cutting edge 22 is a cross-sectional line of a plane oblique to the axis of the upper drum 21 and the outer circumference of the upper drum 2, and if the outer circle surface of the upper drum 21 is unfolded in a plane, the extending curve of the upper cutting edge 22 is an oblique straight line. The lower cutting edge 24 is similar to the upper cutting edge 22, with the only difference being that the lower cutting edge 24 and the upper cutting edge 22 are oppositely inclined and oppositely rotated, and the lower cutting edge 24 and the upper cutting edge 22 are arranged in alignment. By such arrangement, when the upper roller 21 and the lower roller 23 rotate, the lower cutting edge 24 and the upper cutting edge 22 can be engaged with each other along with the rotation of the upper roller 21 and the lower roller 23, so as to cut the strip steel fed between the upper roller 21 and the lower roller 23. The steel strip is cut by the rotation of the upper roller 21 and the lower roller 23, so that the roll-cutting roller flying shear of the embodiment can be suitable for a high-speed cutting environment.

The inclination angle of the upper cutting edge 22 at the outer circle of the upper roller 21 (i.e. the inclination angle of the upper cutting edge 22 of the inclined straight line when the outer circle surface of the upper roller 21 is developed in a plane) is 1-3 degrees, and the inclination angle of the lower cutting edge 24 at the outer circle of the lower roller 23 is the same. In addition, as shown in fig. 3, the angle b formed by the strip steel input between the upper roller 21 and the lower roller 23 in the direction T and the axis of the rolling cutting roller 2 is matched with the inclination angles of the upper cutting edge 22 and the lower cutting edge 24, so that the arrangement can ensure that the strip steel is cut into a rectangular shape under the condition that the floor area of the machine table is as small as possible.

The driving device 4 comprises a main motor 41, a band-type brake 42, a speed reducer 43 and a coupler 44 which are sequentially connected in a transmission manner, and the driving device 4 is used for providing rotating power for the upper roller 21 and the lower roller 23; the helical gear gap eliminating device 3 is connected between the driving device 4 and the hobbing roller 2, the helical gear gap eliminating device 3 comprises a main transmission helical gear 31, a transmission helical gear 32 and a gap eliminating helical gear 33, the design ensures that no gear meshing gap deviation exists in the forward and reverse rotation processes of the upper roller 21 and the lower roller 23, and the helical gear gap eliminating structure is a common gap eliminating structure, and details of the helical gear gap eliminating structure are not repeated in this example.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a roll-cutting formula cylinder flying shear which characterized in that: the steel strip cutting device comprises a rack and a rolling cutting roller, wherein the axis of the rolling cutting roller is parallel to the upper roller and the lower roller which are arranged oppositely one above the other, the upper roller and the lower roller are opposite in rotation direction so as to form a rolling conveying channel between the upper roller and the lower roller through clamping of the upper roller and the lower roller, an upper cutting edge is fixedly arranged on the outer circle side of the upper roller, a lower cutting edge is fixedly arranged on the outer circle side of the lower roller, the upper cutting edge is a curve extending structure which obliquely extends from one axial end of the upper roller to the other end along the outer circle of the upper roller, the lower cutting edge is a curve extending structure which obliquely extends from one axial end of the lower roller to the other end along the outer circle of the lower roller, the lower cutting edge and the upper cutting edge are oppositely arranged in alignment and obliquely rotate in opposite directions, so that when the upper roller and the lower roller rotate, the lower cutting edge and the upper cutting edge can be meshed with the rotation of the upper roller and the lower roller, and strip steel fed between the upper roller and the lower roller is cut.

2. The roll-cutting drum flying shear of claim 1, wherein: the value of the inclination angle of the upper shear blade on the excircle of the upper roller and the value of the inclination angle of the lower shear blade on the excircle of the lower roller are between 1 and 3 degrees.

3. The roll-cutting drum flying shear of claim 1, wherein: the device also comprises a driving device and a bevel gear gap eliminating device, wherein the driving device provides rotating power for the upper roller and the lower roller, and the bevel gear gap eliminating device is connected between the driving device and the rolling cutting roller so as to eliminate the transmission gap between the driving device and the upper roller and the lower roller.

4. A rotary-cutting drum flying shear as claimed in claim 3, wherein: the driving device comprises a main motor, a band-type brake, a speed reducer and a coupler which are sequentially connected in a transmission manner.

5. A rotary-cutting drum flying shear as claimed in claim 3, wherein: the helical gear gap eliminating device comprises a main transmission helical gear, a transmission helical gear and a gap eliminating helical gear.