A traversing double-car system and a traversing multi-car system

Abstract

The invention discloses a traversing type double-trolley system. The system comprises an upper trolley and a lower trolley, wherein the lower trolley comprises a first walking mechanism and a second walking mechanism mounted on guide rails at two sides of the upper trolley in a walking manner, a rigid frame for connecting the first walking mechanism and the second walking mechanism, and a sling connected below the rigid frame; the rigid frame is provided with a structure space with the cavity size greater than the outer wall size of the upper trolley so as to allow the upper trolley to pass, and the lower trolley meets the condition that the stabilizing moment Sigma Ms of the lower trolley is greater than capsizing moment Sigma Mo; the first walking mechanism is connected with the second walking mechanism through the rigid frame; the structure space size of the rigid frame is greater than the outer wall size of the upper trolley, so that the upper trolley sling carrying a tank can directly pass through the structure space without rotating; under the condition that the stabilizing moment Sigma Ms caused by the gravity of the lower trolley is greater than the capsizing moment Sigma Mo caused by horizontal inertia force of the lower trolley, the capsizing moment Sigma Mo caused by wind load or other reasons is overcome under the effect of the stabilizing moment of the lower trolley, so that the lower trolley always maintains steady in the operational process.

Description

technical field [0001] The invention relates to a through-type double-car system and a through-type multi-car system for container quay cranes, belonging to the technical field of container loading and unloading. Background technique [0002] In the prior art, the method of setting up multiple trolleys in the container quay crane system to run simultaneously is often used to improve the loading and unloading efficiency of the container quay crane; however, the operation mode of crossing double trolleys is mostly used at present. [0003] For example, Chinese patent document CN101323415A discloses a kind of through-type double trolley bridge type crane, which includes a cart and a main beam arranged on the cart, and also includes: a first load trolley, the first load trolley includes a pick-up device, a left lobe The vehicle frame and the right lobe frame, the pick-up device is suspended on the left lobe frame and the right lobe frame through the hoisting sling, and the hoist...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that in the double-car structure in the prior art, the upper trolley needs to be rotated to pass through the middle and lower trolleys. Rotation not only increases energy consumption, but also makes it easier for the upper and lower trolleys to Shaking occurs, and because the hoisting sling is a flexible structure, the size of the U-shaped space for the upper trolley to pass through is easy to change, which may cause interference between the upper trolley and the lower trolley; thus providing a non-rotating and not easy to shake The traversing double trolley system further provides a traversing multi-carriage system

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