Open tooth external cart mechanism of portal crane

Abstract

The invention provides an open tooth external cart mechanism of a portal crane. The mechanism comprises a large balance beam, the lower ends of the two sides of the large balance beam are connected with two symmetrical small balance beams through small shafts, and the lower end of one side of each small balance beam is connected with a driving trolley set through a first hinge shaft device. The lower end of the other side of each small balance beam is connected with a driven trolley set through a second hinge shaft device. Each driving trolley set comprises a first driving gear device, a second driving gear device and a large gear device which are rotationally connected to the driving trolley set. According to the mechanism, the defects in the prior art are overcome, the design is reasonable, the structure is compact, the stability is improved by using the plurality of small balance beams, the moving stability is improved by adopting pinion devices, the cart mechanism is moved and mounted to the outer side by using transmission teeth mounted in the driving trolleys of the cart mechanism, maintenance personnel can conveniently observe in daily life and timely know the operation condition of the transmission teeth, problems can be conveniently and timely found and solved, and a first-time response program is started.

Description

technical field [0001] The invention relates to the technical field of crane equipment, in particular to an open-toothed-external-mounted cart mechanism of a gantry crane. Background technique [0002] The transmission gear of the gantry crane cart mechanism is generally installed inside the active trolley of the cart mechanism, and its internal operation cannot be observed daily, and the early warning and lubrication conditions before the transmission gear failure will not be known in time. [0003] If a fault occurs, because the transmission gear is inside, the active trolley must be lifted up and the intact wheel set must be taken out at the same time when disassembling, which will increase the maintenance workload and will affect whether the cart can be restored in time. Institutional operations have a certain impact. [0004] In addition, the transmission gears inside the active trolley group will occupy a large part of the structural space, increasing its external dim...

AI Technical Summary

Problems solved by technology

[0002] The transmission gear of the gantry crane cart mechanism is generally installed inside the active trolley of the cart mechanism, and its internal operation cannot be observed daily, so it is impossible to know the early warning and lubrication conditions before the transmission gear fails

[0003] If a fault occurs, because the transmission gear is inside, the active trolley must be lifted up and the intact wheel set must be taken out at the same time when disassembling, which will increase the maintenance workload and will affect whether the cart can be restored in time. Institutional operations have a certain impact

[0004] In addition, the transmission gear inside the active trolley group will occupy a large part of the structural space, which increases its overall size, correspondingly increases its own weight and increases the manufacturing cost

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