Portal crane cart braking device

Abstract

The invention relates to a portal crane cart braking device. The portal crane cart braking device comprises a frame and a walking mechanism; the walking mechanism is arranged at the lower part of theframe; the walking mechanism comprises wheel support plates, an axle, wheels and rails; the wheel support plates are arranged at the left and right ends of the lower end surface of the frame; the axleis arranged between the two wheel support plates; the wheels are arranged at the left and right ends of the axle; gaps are reserved between the wheels and the wheel support plates; first braking mechanism is arranged above the wheels, and comprises a first driving mechanism; the upper end of the first driving mechanism is fixed to the frame; a braking hoop is fixedly arranged at the lower end ofthe first driving mechanism; the rails are arranged below the wheels; second braking mechanisms are arranged in front of the wheels, and comprise a left second braking mechanism and a right second braking mechanism; and the left second braking mechanism and the right second braking mechanism are the same in structure. The portal crane cart braking device is compact in structure and excellent in braking effect, and can effectively shorten the crane braking distance.

Description

technical field [0001] The invention relates to a braking device, in particular to a braking device for a cart of a gantry crane. Background technique [0002] Gantry crane is a deformation of bridge crane, also called gantry crane. It is mainly used for loading and unloading operations of outdoor cargo yards, stockyard cargoes, and bulk cargoes. Its metal structure is like a door-shaped frame. Two legs are installed under the main beam, which can directly walk on the track on the ground. The two ends of the main beam can have outrigger cantilever beams. Gantry cranes have the characteristics of high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port freight yards. It can be classified according to the structure of the door frame, according to the form of the main beam, according to the structure of the main beam, and according to the form of use. The gantry crane can not be hindered by the ground equipment. Bec...

AI Technical Summary

Problems solved by technology

The gantry crane can not be hindered by the ground equipment. Because the existing gantry crane uses the walking motor to drive the action wheel to walk, the existing braking device only brakes the action wheel. With the increase of the tonnage of the gantry crane As the braking distance increases, the braking distance becomes more and more difficult, which greatly affects the safety performance.

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