Rotary hoisting-shaft type mechanical grabbing beam

Abstract

A rotary hoisting-shaft type mechanical grabbing beam comprises a grabbing beam body. Rotary hoisting shafts are arranged on hinge hoisting lugs of hoisting lug plates below the two sides of the grabbing beam body. In the rotary hoisting shafts, one ends of steel ingots are fixedly arranged on the hinge hoisting lugs, hoisting shaft screws are rotationally arranged at the other ends of the steel ingots through hinge pin shafts. Balancing weights are in threaded connection with the hoisting shaft screws and then fixedly arranged on the hoisting shaft screws through locking nuts. Open holes in hinge seat ends of the hoisting lug plates below the grabbing beam body are larger than openings in the other ends. By means of the rotary hoisting-shaft type mechanical grabbing beam, the defects existing in a traditional grabbing beam can be overcome, the structure is simple, operation is convenient, and manufacturing cost is low.

Description

technical field [0001] The invention relates to a mechanical hanging beam used for hoisting a trash rack in a water conservancy and hydropower project, in particular to a rotatable hanging shaft type mechanical grabbing beam. Background technique [0002] Grabbing beam is an accessory equipment widely used in hoists of hydropower projects, mainly used for lifting gates or trash racks. Grasping beams are mainly divided into two categories: mechanical grabbing beams and hydraulic automatic hanging beams. Mechanical grabbing beams are generally used for opening and closing gates or trash racks of small hydropower stations. Mechanical grabbing beams are relatively less automated than hydraulic automatic hanging beams. It is generally semi-automatic and requires manual assistance, but the operation is simple, the cost is low, and the maintenance cost is also low. Compared with the mechanical grabbing beam, the hydraulic automatic hooking beam is more intelligent and has a higher...

AI Technical Summary

Problems solved by technology

Compared with the mechanical grabbing beam, the hydraulic automatic hooking beam is more intelligent and has a higher degree of automation. It is generally used for the opening and closing of large-scale hydropower station gates or trash racks, and is equipped with hydraulic pump stations, cable reels, pin alignment devices, stroke sensors, signal Alignment devices, etc., are complex in cost, maintenance, and high in cost, while the existing mechanical grab beams are generally complex in structure, mainly as follows:

[0003] (1) The structure of the existing mechanical gripping beam card and hanging body is complicated, the processing is difficult, and the scrap rate is high

[0004] (2) If the complex card body and hanging body encounter sediment deposition during long-term operation, the action will fail, which will easily cause accidental uncoupling accidents during the lifting process

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