A kind of running mechanism of double-track trolley group of super-large gantry crane

Abstract

The invention discloses an operating mechanism for a double-track trolley group of a super-large gantry crane, which includes a balance beam and a double-track trolley, and is characterized in that the double-track trolley is composed of four wheels composed of running wheels and driven wheels symmetrically arranged on both sides of the frame Double-drive mechanism, the double-track trolley is fixed at both ends of the balance beam by the hinge shaft, and the double-track trolley is hinged to the balance beam; the frame is an "I"-shaped box structure; The driving wheel of the mechanism, and the driving mechanism make the traveling wheel and the driven wheel drive the trolley group composed of two double-track trolleys to run on the track. Compared with the prior art, the present invention has the advantages of small running wheel pressure and good uniform distribution, which greatly weakens the lateral force, effectively avoids the phenomenon of rail gnawing, increases the working range, reduces the working blind area, and further reduces the construction cost. The structure is simple, which greatly facilitates the maintenance and maintenance of the equipment.

Description

technical field [0001] The invention relates to the technical field of lifting equipment, in particular to a running mechanism of a double-track trolley group of a super-large gantry crane. Background technique [0002] At present, most of the trolleys of the super-large gantry crane trolleys are monorail trolleys, which consist of two wheels, a trolley frame, wheel axles, a small balance beam hinged with the trolley frame, and a driving devices, etc. The super large gantry crane has only two trolley rails, which are located under the rigid outriggers and flexible outriggers on both sides or under the full rigid legs respectively. Each monorail trolley is supported by the self-weight and hoisting weight of the crane by two wheels, and can walk along the track of the cart under the drive of the reducer, and the trolley is connected by the balance beam to form a running mechanism. [0003] The super-large gantry crane has a dead weight of thousands of tons and a load of hund...

AI Technical Summary

Problems solved by technology

At the same time, the hinge shaft of the balance beam is directly installed on the steel sleeve on the transmission shaft, so that the transmission shaft bears the action of torque and bending moment at the same time, and the force is complicated. Therefore, the bearing capacity of the transmission shaft and the left and right wheel gauges are limited.

Once the gauge is limited, the effect of overcoming rail gnawing is weakened, and the advantages of the double-track trolley cannot be fully displayed.

[0005] The problems existing in the prior art are: the trolley trolley of the ultra-large gantry crane needs to withstand relatively large wheel pressure, and the wheels are made of large-diameter cast or forged alloy steel materials, and the manufacturing cost is high, especially the huge running wheel. The quantity not only increases the work blind spot but also weakens the horizontal rigidity, which not only increases the basic investment, aggravates the phenomenon of rail gnawing, but also causes waste

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