Differential Rail Container Crane

A container crane, differential technology, applied in the direction of cranes, trolley cranes, traveling mechanisms, etc., can solve the problems of large active load of the trolley, damage to the main beam structure, large inertia of the trolley, etc., to reduce weight and drive energy consumption. , the effect of reducing the inertia of starting or braking

Inactive Publication Date: 2017-08-25
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the current RMG trolley integrates the two mechanisms of the lifting mechanism and the trolley drive mechanism, the active load of the trolley is relatively large, resulting in a large inertia when the trolley starts or brakes.
When the trolley starts or brakes rapidly, under the influence of inertial load, the trolley is not only prone to failures such as rail gnawing, but may also cause damage to the structure of the main beam

Method used

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  • Differential Rail Container Crane
  • Differential Rail Container Crane
  • Differential Rail Container Crane

Examples

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Embodiment

[0032] Such as Figure 1 to Figure 4 As shown, this embodiment provides a differential rail container crane, which includes: a mast structure 1 , a trolley 3 and a driving mechanism for driving the trolley to travel on the top of the mast mechanism 1 .

[0033] Wherein, the portal frame structure 1 includes a load-bearing main beam 2 and two support frames 5 for supporting the load-bearing main beam 2 . The load-bearing main girder is a triangular tube structure single main girder and its node form is a contained node. The parameters of the single main girder of the triangular tube structure are as follows: the main chord is φ400×12, the web is φ159×10, the span is 31m, the height is 3 meters, and the section moment of inertia is 0.9×1011mm 4 , the weight per unit length including the track is 0.7 tons, and it can withstand a lifting load of 50 tons. It is the lightest product of the same type in the world. The nodes carrying the main girder adopt inclusive nodes, which grea...

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Abstract

The invention provides a differential rail container crane, which includes a portal frame structure, a trolley for moving containers, and a driving mechanism for driving the trolley. The driving mechanism is arranged on the portal structure and not on the trolley. The driving mechanism includes Eight differential gearboxes with two degrees of freedom use the same set of steel wire ropes to realize container lifting and trolley travel, that is, each differential gearbox is connected to the corresponding steel rope reel, and drives eight steel wire ropes to realize container lifting. Lifting, lowering or tilting adjustment (the first degree of freedom), eight steel wire ropes simultaneously drive the vehicle in a combined motion (the second degree of freedom), so the present invention integrates driving trolley walking and container lifting , reduce the weight of the trolley and reduce the active load of the trolley and the inertia of starting or braking, thereby improving the self-weight and load-bearing condition of the mast structure; traction walking can avoid the trolley from slipping and rail gnawing and other faults.

Description

technical field [0001] The invention belongs to the technical field of cranes and relates to a differential rail container crane. Background technique [0002] The rail-mounted container crane (RMG) is characterized by the use of a cart mechanism to walk on the track, and it is a derivative of the tire-mounted container crane (RTG). Although its application time in port terminals is relatively late, it has been widely used in automated terminals. Among the more than 4,000 field bridges (RTG and RMG are collectively referred to as field bridges in the port) produced by Shanghai Zhenhua Heavy Industry Company, about 1,000 are RMGs. [0003] Compared with rubber-tyred container cranes, rail-mounted container cranes have the following advantages: [0004] First, the running resistance of rail-mounted container cranes is smaller than that of tire-type container cranes. Since rail-mounted container cranes run on rails rather than on the ground, their running resistance is much ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C19/00B66C9/14B66C11/20B66C6/00
Inventor 张氢周筱川孙玉福秦仙蓉孙远韬杨万秋胡军张海军聂飞龙周兆伟
Owner TONGJI UNIV
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