Clamp-type elevator device for heavy steel plate blank and using method thereof

Abstract

The invention relates to the field of steel production in the metallurgical industry, in particular to a clamp-type elevator device for a heavy steel plate blank. The clamp-type elevator device for the heavy steel plate blank is characterized in that the device comprises two clamping plates, two connecting rods, a plurality of gaskets and lock nuts; lifting holes are formed in one end of each clamping plate, connecting holes allowing the corresponding connecting rods to penetrate through are formed in the two ends of each clamping plate, and the connecting holes close to the sides of the lifting holes are located in the inner sides of the lifting holes; each connecting rod comprises a connecting section located in the middle, punching sections located at the two ends of the corresponding connecting section, and thread locking sections located at the two ends of the corresponding punching section; the cross-section shape of the punching sections is the same as the opening shape of the connecting holes; the two clamping plates penetrate into the punching sections of the two connecting rods through the corresponding connecting holes, the gaskets are arranged on the thread locking sections of the connecting rods in a sleeving mode, and the lock nuts are fixedly connected with the thread locking sections in a threaded mode. The clamp-type elevator device is low in cost, small in deformation in the using process, safe and guaranteed, capable of adjusting the clamp degree, and wide in application range.

Description

technical field [0001] The invention relates to the field of iron and steel production in the metallurgical industry, in particular to a clamping and lifting device for heavy steel plate blanks and a method for using the same. Background technique [0002] In the process of iron and steel casting production, a large number of heavy-duty steel plate blanks (10m long, 1.5m wide, 0.18m thick, and a single piece weighing more than 14t), due to their large size and heavy weight, need to use special large spreaders or fixtures to lift or transport. In order to ensure that the steel plate blank will not fall off the spreader or clamp during transportation, steel mills generally use double-leg clamps. The fixture is made of special steel, and has four rectangularly distributed limbs with fixed relative positions. The lower part of each limb is in the shape of a hook. When transferring the steel blank, the four limb and foot hooks of the double limb fixture are first clamped under ...

AI Technical Summary

Problems solved by technology

[0004] 1) The size of the clamps for both limbs is huge, and there is not enough space above the steel blanks that are not in the shape of a "well" and are stacked up and down in layers regularly to allow the clamps to go deep, or the hooks of the limbs and feet cannot extend into the underside of the steel blanks

[0005] 2) For the steel blank with a large inclination angle, since the relative positions of the four limbs and feet of the double-leg fixture are fixed, it is impossible to clamp and fasten at the center of gravity of the steel blank

[0006] 3) If the steel blank with a large inclination angle is forcibly hoisted at a non-center of gravity position, due to the heavy weight of the steel blank, the component of its gravity in the tilt direction is much greater than the friction exerted by the four limbs on the steel blank, and sliding blanks are prone to occur ACCIDENT

However, the working method of the improved hoisting tool is still horizontal clamping, and there is still no good technical solution for the hoisting of excessively large inclination angles and irregularly stacked plates

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