WO2024060580A1

WO2024060580A1 - Rolling-cut type drum flying shear

Info

Publication number: WO2024060580A1
Application number: PCT/CN2023/086454
Authority: WO
Inventors: 郑祥臣; 唐文; 周云根; 杨国良; 张翼; 朱彪
Original assignee: 中冶南方工程技术有限公司
Priority date: 2022-09-23
Filing date: 2023-04-06
Publication date: 2024-03-28
Also published as: CN115401256A

Abstract

A rolling-cut type drum flying shear comprises a rack (1) and a rolling-cut drum (2). The rolling-cut drum (2) is axially parallel and comprises an upper drum (21) and a lower drum (23) which are oppositely arranged up and down. The rolling directions of the upper drum (21) and the lower drum (23) are opposite; a rolling conveyor channel is formed between the upper drum and the lower drum by means of the clamping of the upper drum and the lower drum; an upper shear blade (22) is fixedly provided on the outer circumference side of the upper drum (21); a lower shear blade (24) is fixedly provided on the outer circumference side of the lower drum (23); the upper shear blade (22) is a curve extension structure obliquely extending from one end in the axial direction of the upper drum (21) to the other end along the outer circumference of the upper drum (21); the lower shear blade (24) is a curve extension structure extending obliquely from one end in the axial direction of the lower drum (23) to the other end along the outer circumference of the lower drum (23); the lower shear blade (24) and the upper shear blade (22) are arranged in an aligned manner and have opposite inclined rolling directions, so that when the upper drum (21) and the lower drum (23) rotate, the lower shear blade (24) and the upper shear blade (22) can be engaged with each other along with the rolling of the upper drum (21) and the lower drum (23), so as to shear strip steel fed between the upper drum (21) and the lower drum (23).

Description

A rolling-cutting drum shear

Technical field

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

Background technique

In the metallurgical industry, flying shears are important equipment used to cut strip steel, and their performance will directly affect the production efficiency of the rolling production line. At present, in the strip steel continuous production and processing line, the connecting rod flying shear is mainly used. However, due to the large moment of inertia, the connecting rod flying shear is not suitable for scenarios that require high-speed shearing of strip steel.

Contents of the invention

Therefore, in view of the above problems, the present invention proposes a rolling-cutting drum flying shear, which can achieve high-speed shearing of strip steel.

The present invention is implemented by the following technical solutions:

The invention proposes a roller-cutting drum flying shear, which includes a frame and a roller-cutting roller. The axis of the roller-cutting roller is parallel and an upper roller and a lower roller are arranged oppositely one above the other. The directions of the upper roller and the lower roller are opposite. , so as to form a rolling conveying channel between the two by clamping the two, the outer circumferential side of the upper drum is fixed with an upper shearing blade, and the outer circumferential side of the lower drum is fixed with a lower shearing blade. The upper shearing blade is a curved extension extending from one axial end of the upper drum along its outer circumference to the other end. The lower shearing blade is a curved extension extending from one axial end of the lower drum along its outer circumference to the other end. structure, the lower shearing blade and the upper shearing blade are set in position and tilted in opposite directions, so that when the upper drum and the lower drum rotate, the lower shearing blade and the upper shearing blade can mesh with the rotation of the upper drum and the lower drum. , thereby shearing the strip fed between the upper drum and the lower drum.

Wherein, preferably, the inclination angle of the upper shearing blade on the outer circumference of the upper drum and the inclination angle of the lower shearing blade on the outer circumference of the lower drum are The tilt angle value is between 1-3°.

Preferably, it also includes a driving device and a helical gear backlash elimination device. The driving device provides rotational power for the upper drum and the lower drum. The helical gear backlash elimination device is connected between the driving device and the rolling and cutting drum. time to eliminate the transmission gap between the upper roller and the lower roller of the driving device.

Preferably, the driving device includes a main motor, a brake, a reducer and a coupling that are connected in sequence.

Wherein, preferably, the helical gear backlash elimination device includes a main transmission helical gear, a transmission helical gear and a backlash elimination helical gear.

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

Description of drawings

Fig. 1 is a front view of the rolling-cutting drum shear in the embodiment;

Figure 2 is a cross-sectional view at A-A in Figure 1;

Figure 3 is a top view of the roll-cut drum flying shear in the embodiment.

Detailed ways

To further explain various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, and are mainly used to illustrate the embodiments, and can be used to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art will be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale and similar component symbols are typically used to identify similar components.

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

Referring to Figures 1-3, as a preferred embodiment of the present invention, a rolling-cutting drum flying shear is provided, which includes a frame 1, a rolling-cutting drum 2, a driving device 4 and a helical gear backlash elimination device 3.

Among them, the rolling and cutting drum 2 includes 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 one up and one down. The directions of the upper drum 21 and the lower drum 23 are opposite, so that the upper drum 21 and the lower drum 23 can be clamped by the two. A rolling conveying channel is formed between the two. The outer circumferential side of the upper drum 21 is fixedly provided with an upper shearing blade 22, and the outer circumferential side of the lower drum 23 is fixedly provided with a lower shearing blade 24. The upper shearing blade 22 is shafted from the upper drum 21. A curved extension structure extending obliquely from one end to the other end along its outer circle, or in other words, the extension curve of the upper shearing blade 22 is the intersection line between a plane inclined to the axis of the upper drum 21 and the outer circumference of the upper drum 2, if When the outer circumferential surface of the upper drum 21 is unfolded in a plane, the extension curve of the upper shearing edge 22 is an inclined straight line. The lower shearing edge 24 is similar to the upper shearing edge 22. The only difference is that the lower shearing edge 24 and the upper shearing edge 22 are inclined in opposite directions, and the lower shearing edge 24 and the upper shearing edge 22 are arranged in alignment. With such an arrangement, when the upper drum 21 and the lower drum 23 rotate, the lower cutting edge 24 and the upper cutting edge 22 can engage with each other as the upper drum 21 and the lower drum 23 rotate, so that the shear is sent to the upper drum 21 and the strip steel between the lower roller 23. The strip steel is sheared by the rotation of the upper roller 21 and the lower roller 23, so that the rolling-cutting drum flying shear of this embodiment can be suitable for high-speed shearing environments.

The inclination angle of the upper shearing edge 22 on the outer circumference of the upper drum 21 (that is, the inclination angle of the upper shearing edge 22 of the inclined straight line when the outer circumference of the upper drum 21 is unfolded in a plane) is between 1-3°, and the lower shearing edge 24 The tilt angle of the outer circle of the lower roller 23 is also the same. To match this, as shown in Figure 3, the angle b formed by the strip steel between the upper drum 21 and the lower drum 23 in the T direction and the axis of the rolling cutting drum 2 matches the inclination angle of the upper shearing edge 22 and the lower shearing edge 24. , such an arrangement can ensure that the strip is sheared into a rectangular shape while the machine occupies as little space as possible.

The driving device 4 includes a main motor 41, a brake 42, a reducer 43 and a coupling 44 that are connected in sequence. The driving device 4 is used to provide rotational power for the upper drum 21 and the lower drum 23; the helical gear backlash device 3 Connected between the driving device 4 and the hobbing drum 2, the helical gear backlash elimination device 3 includes a main drive helical gear 31, a drive helical gear 32 and a backlash elimination helical gear 33. This design ensures that the upper drum 21 and the lower drum 23 There is no gear meshing clearance deviation during forward and reverse rotation. The helical gear anti-backlash structure is a commonly used anti-backlash structure. The details will not be repeated in this example.

Although the invention has been specifically shown and described in conjunction with preferred embodiments, it will be apparent to those skilled in the art that the invention can be modified in form and detail without departing from the spirit and scope of the invention as defined by the appended claims. Various changes are made and fall within the protection scope of the present invention.

Claims

A roll-cutting drum flying shear, which is characterized by: including a frame and a roll-cutting drum. The axis of the roll-cutting drum is parallel and an upper drum and a lower drum are arranged oppositely. The steering of the upper drum and the lower drum is On the contrary, a rolling conveying channel is formed between the two by clamping the two, the outer circumferential side of the upper roller is fixed with an upper shearing blade, and the outer circumferential side of the lower roller is fixed with a lower shearing blade, so The upper shearing edge is a curved extension structure that extends from one axial end of the upper drum along its outer circumference to the other end, and the lower shearing edge is a curved structure that extends from one axial end of the lower drum along its outer circumference to the other end. Extended structure, the lower shearing blade and the upper shearing blade are aligned and tilted in opposite directions, so that when the upper drum and the lower drum rotate, the lower shearing blade and the upper shearing blade can move in phase with the rotation of the upper drum and the lower drum. Engage, thereby shearing the strip fed between the upper and lower drums.
The roll-cutting drum flying shear according to claim 1, characterized in that: the inclination angle of the upper cutting edge on the outer circumference of the upper drum and the inclination angle of the lower shearing blade on the outer circumference of the lower drum are between 1-3°.
The roll-cutting drum flying shear according to claim 1, characterized in that: it further includes a driving device and a helical gear backlash elimination device, the driving device provides rotational power for the upper drum and the lower drum, and the helical gear anti-backlash device The gap device is connected between the driving device and the rolling and cutting drum to eliminate the transmission gap between the upper drum and the lower drum of the driving device.
The roller cutting type flying shear according to claim 3, characterized in that the driving device includes a main motor, a brake, a reducer and a coupling that are connected in sequence.
The roller cutting type flying shear according to claim 3, characterized in that the helical gear backlash elimination device includes a main transmission helical gear, a transmission helical gear and a backlash elimination helical gear.