CN202571456U - Flying shear cutting edge dismounting device - Google Patents

Abstract

The utility model relates to a cutting blade removal device for flying shears, which is characterized in that it comprises a push-out hydraulic cylinder and an axial oil passage arranged at the center of rotation of the drum, the push-out hydraulic cylinder is arranged on the back side of the cutting blade push-out direction, and the axial oil passage It communicates with the radial oil passage of the hydraulic cylinder. The utility model has the advantages that the cutting blade can be replaced accurately and in time, the time for replacing the cutting blade is shortened, and the working efficiency of changing the cutting blade is improved.

Description

Flying shear blade removal device

technical field

The utility model relates to a dismantling auxiliary device, in particular to a dismantling device for flying shear blades.

Background technique

In the production process of hot-rolled strip steel, the flying shear is an important equipment for cutting the head and tail of the intermediate billet. According to the different mechanisms of the flying shears, the installation forms of the cutting blades are also different. Among them, each cutting blade of the drum type flying shears is fixed by eight sets of locking cylinders. The effect of the disc spring in the locking cylinder can make the clamping block generate pressure on the side of the cutting edge to realize the locking of the cutting edge on the cutting drum. When the cutting blade needs to be removed, pressurized oil is introduced into the locking cylinder to cause compression deformation of the disk spring, so that the side of the clamping block is separated from the side of the cutting blade to release the locking. Because the cutting blade is fixed in the cutting groove for a long time, although the locking is released, the phenomenon of difficulty in taking out the cutting blade often occurs, thereby affecting the time for replacing the cutting blade.

Contents of the invention

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a cutting blade removal device for flying shears, which can effectively solve the problem of difficulty in removing the cutting blades in the prior art and improve production efficiency.

In order to achieve the above object, the utility model is realized through the following technical solutions:

A flying shear blade removal device, characterized in that it includes a push-out hydraulic cylinder, an axial oil passage arranged at the center of rotation of the drum, the push-out hydraulic cylinder is arranged on the back side of the cutting blade push-out direction, and the axial oil passage and the push-out hydraulic cylinder The radial oil passages are connected.

The utility model has the advantages that the cutting blade can be replaced accurately and in time, the time for replacing the cutting blade is shortened, and the working efficiency of changing the cutting blade is improved.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1-scissor 2-boring 3-pull out hydraulic cylinder 4-clamp block 5-lock hydraulic cylinder 6-rotary drum 7-axial oil passage

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

As shown in Fig. 1, a flying shear blade removal device includes a push-out hydraulic cylinder 3, an axial oil passage 7 arranged at the center of rotation of the drum 6, and the push-out hydraulic cylinder 3 is set on the back side of the push-out direction of the shear blade 1, and the axial oil passage 7 Road 7 communicates with the radial oil passage that pushes out hydraulic cylinder 3 .

The flying shear is driven by a DC motor through the gear coupling to the main reducer, and then connected to the lower drum of the flying shear body through the gear coupling (or connecting shaft). The synchronous gear on the side makes it have a relative rotary motion at a constant speed, and finally completes the head and tail cutting work of the intermediate billet through the head and tail cutting blades.

Without changing the structure of the original drum, two bore holes 2 are machined at the corresponding vertical and axial positions of the shearing blades 1 installed on each drum, and they are pushed out of the hydraulic cylinder 3 into it. Process its axial oil channel 7 on the rotating center of bowl 6 again, and link to each other with leading to the radial oil channel of releasing hydraulic cylinder 3, form an oil supply circuit.

The upper and lower drums are respectively equipped with cutting blades and tail cutting blades, and two push-out hydraulic cylinders 3 are installed on the bottom surface of each group of cutting blades. When the cutting blade needs to be removed, pressurized oil is introduced into the locking hydraulic cylinder 5 to cause the disk spring to compress and deform, so that the side of the clamping block 4 is separated from the side of the cutting blade 1 to release the locking. Then, pressurized oil is introduced into the hydraulic cylinder 3, so that the disk spring is compressed and deformed, and the cutting blade 1 is directly ejected.

Claims (1)

1. A flying shear blade removal device, characterized in that it includes a push-out hydraulic cylinder, an axial oil passage arranged at the center of rotation of the drum, and the push-out hydraulic cylinder is arranged on the back side of the shear blade push-out direction, and the axial oil passage and the push-out The radial oil passages of the hydraulic cylinders are connected.

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