Crane with double electric hoist adjusting mechanisms

Abstract

The invention discloses a crane with double electric hoist adjusting mechanisms. Balance auxiliary blocks are connected to the positions of rollers on electric hoist moving vehicles, so that when thegravity center shifts or has a trend of shifting in the advancing direction of a trolley during hoisting work, the gravity center between the double electric hoist moving vehicles can be balanced andcorrected, so that normal use of an electric hoist crane is guaranteed, and the service life of the electric hoist crane is prolonged. An automatic balance adjusting mechanism is arranged, when the gravity center shifts or has the trend of shifting in the direction perpendicular to the advancing direction of the trolley, the automatic balance adjusting mechanism can automatically perform balance adjustment on the gravity center of the electric hoist moving vehicles, then severe friction between trolley wheel rims and the side face of a rail is avoided, safe operation of the electric hoist moving vehicles is guaranteed, so that the safe operation of the working environment is guaranteed, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of crane equipment, in particular to a crane with a double-group electric hoist adjustment mechanism. Background technique [0002] A crane refers to a multi-action hoisting machine that can vertically lift and horizontally transport heavy objects within a certain range; First, it is evolved from a crawler crane (crawler crane). The crawler and the walking frame of the walking mechanism are transformed into a chassis with tires, which overcomes the shortcomings of the crawler crane (crawler crane) that the crawler shoes cause damage to the road surface. It belongs to the material Handling machinery; for bridge cranes, it is a lifting device that is placed horizontally over workshops, warehouses and stockyards for material lifting; because its two ends are located on tall cement columns or metal supports, it is shaped like a bridge; bridge cranes The bridge frame runs longitudinally along the tracks laid on ...

AI Technical Summary

Problems solved by technology

[0003] For the double-group electric hoist used on the gantry crane, when lifting heavy objects, the weight shared by each group of electric hoist is different, which causes the center of gravity of the electric hoist to deviate during work, and the balance cannot be adjusted. The electric hoist trolley is driven by rollers The sliding with the slide rail moves on the gantry crane, which will inevitably lead to the separation of the rollers and the slide rail, which will cause the trolley to operate abnormally, and in severe cases, it will cause rail gnawing, and the wheel rim of the trolley will rub violently against the side of the track. The service life of the wheels and guide rails is shortened, which in turn affects the normal use of the electric hoist crane, affects the normal operation of the work, reduces work efficiency, and has certain dangers. Institutional cranes are used to solve the above problems

Images