Portable flame cutting device for H-shaped steel

Abstract

The invention relates to a portable flame cutting device for H-shaped steel. The portable flame cutting device comprises stirrups, the H-shaped steel and a tube climbing machine, wherein the stirrups are located below the H-shaped steel, and the tube climbing machine is located on the H-shaped steel; a web plate of the H-shaped steel is horizontally arranged, and the lower end part of a flange plate of the H-shaped steel is propped against the stirrups; the H-shaped steel is further provided with a clamp and a rail which are connected, and the clamp and the rail are connected to the flange plate of the H-shaped steel in a sleeved mode; the rail is located on the outer side of the flange plate, and the clamp is located on the inner side of the flange plate; and the tube climbing machine is located in the rail, and the rail is vertically arranged in the width direction of the flange plate. Compared with the prior art, the portable flame cutting device has the advantages that the turning-over frequency is reduced, and the unhooking danger probability and the safety accident coefficient are reduced. The device can be hung on the outer side of the flange plate during blanking of the flange plate, and the device and the inner side of the flange plate are fixed through an adjusting bolt. The tube climbing machine is fixed to a rail frame, and the tube climbing machine is adsorbed to the rail after being powered on. The tube climbing machine runs to drive a flame cutting torch to perform blanking and beveling on the flange plate, and the turning-over condition of a component is reduced.

Description

technical field [0001] The invention relates to the technical field of steel structure cutting, in particular to a convenient flame cutting device for H-shaped steel. Background technique [0002] In the development process of building steel structure, existing stadiums, airports, high-rise buildings, etc. commonly use large-section H-beams, special-shaped H-beams and other components, of which H-beams or special-shaped H-beams are usually rigidly connected at the construction site, which requires When cutting or opening bevels on H-beam or special-shaped H-beam, steel structure factories often need to turn over during the process of blanking large H-beam and special-shaped H-beam components and opening grooves to increase the height of the working surface. This greatly increases the risk factor in the production process. The specific disadvantages are as follows: [0003] 1. The cutting of H-beam ends and the opening of grooves are currently relatively advanced. At present...

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Problems solved by technology

[0003] 1. H-shaped steel end blanking and beveling are currently more advanced for the intersecting line to adopt programming numerical control cutting or locking machine knife milling bevelling. After the component is processed, it needs to be transferred to the corresponding equipment track or fixture, and the processing efficiency is high. Very low, it is easy to cause congestion in a single process, and a large number of H-beams in the steel structure industry adopt flame cutting and beveling, and large-scale H-beams cannot be sawed and locked on the secondary processing line

[0004] 2. During the turning process of H-shaped steel and box body, it is easy to increase the probability of serious safety accidents such as the decoupling of the grab hook, the collision between the turning member and other objects, and the large swing of the member caused by the release of potential energy when the member is lifted off the ground.

[0005] 3. The end of the curved and twisted H-shaped steel member needs to be adjusted to be close to the level before the bevel is made. The bevel is opened by a semi-automatic trolley. The adjustment of the end position of the member with a large degree of bending and torsion is more complicated and easily causes deformation of the member

[0006] 4. When opening a bevel for a component with a large cross-section, semi-automatic equipment needs to be moved to the upper surface of the wing plate. The operating surface is raised, and employees have risks such as climbing mistakes, falling during operation, and burns during flame operation.

[0007] 5. As for the appearance of the components, there are often scratched grooves on the surface of the components turned over many times, which are not easy to repair and seriously affect the appearance of the components

[0008] 6. The time to turn over a component is proportional to the size of the component. It takes 15-20 minutes for a large component to turn over and occupies a site nearly twice the height of the section, which seriously delays the production progress of the component and reduces the utilization rate of the site.

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