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Rail brake device of gantry crane

A gantry crane and crane technology, applied in the directions of travel mechanism, transportation and packaging, load hanging components, etc., can solve the problems of easy sliding and insufficient structural resistance, and achieve the effect of improving braking effect, flexible and convenient application.

Inactive Publication Date: 2010-09-08
宁波市凹凸重工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is often suitable for manual operation, but not for rail cars, especially for cranes, because the brakes need to be stable after parking, and the resistance of the above structure is not large enough, and it is easy to slide when lifting heavy objects, so The structure needs further improvement

Method used

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  • Rail brake device of gantry crane
  • Rail brake device of gantry crane
  • Rail brake device of gantry crane

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] Such as figure 1 and figure 2 As shown, the top rail device of the gantry crane of this embodiment includes an oil cylinder 1 with a hydraulic lifting shaft 11 . Right below the hydraulic lifting shaft 11, a top rail device 2 is provided, and the top rail device 2 includes a casing 23 and a vertically arranged telescopic rod 21, and the above-mentioned telescopic rod 21 is arranged in the casing 23 so as to move up and down. The upper end of the telescopic rod 21 is in contact with the lower end of the hydraulic lifting shaft 11, and the lower end of the telescopic rod 21 can be in contact with the rail 3 when it extends downward, and the housing 23 and the oil cylinder 1 are fixed on the crane through the side. Drive 4 on. In order to reduce friction, the upper end surface of the telescopic rod 21 is preferably in contact with the ...

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Abstract

The invention provides a rail brake device of a gantry crane, which comprises an oil cylinder (1) with a hydraulic lifting shaft (11), and is characterized in that a track jack (2) is arranged under the hydraulic lifting shaft (11) and comprises a shell (23) and an expansion link (21) arranged vertically; the expansion link (21) is arranged in the shell (23) in a manner of being capable of moving up and down; the upper end of the expansion link (21) abuts against the lower end of the hydraulic lifting shaft (11), while the lower end of the expansion link (21) abuts against a track (3) when the expansion rod expands downwards; and the shell (23) and the oil cylinder (1) are fixed on a crane trolley (4) through side parts. Compared with the prior art, the invention has the advantages that a brake structure is changed into a jack track structure so as to position the crane trolley on the track steadily; and the track jack structure also plays a function of a fixed leg, thus further improving the brake effect of the crane trolley. When in use, the only thing needing to do is to drive the oil cylinder, thus the rail brake device is a flexible, convenient and practical structure.

Description

technical field [0001] The invention relates to a top rail device of a gantry crane. Background technique [0002] Existing a kind of patent No. discloses a kind of structure that the Chinese utility model patent of CN91201335.4 name " shaft braking device for vehicle ", its main structure is that left and right two shaft stops are equipped with respectively at the two ends of wheel. The left shaft block is processed with a cam surface, and rolling elements are arranged between the cam surface and the brake hub. One end of the right shaft block is processed with teeth, and the groove of the shaft bowl is equipped with a pawl meshing with the teeth. Both ends of the hub are respectively connected with the shaft cup and the brake hub. The device can be used on bicycles or other vehicles. When the flywheel rotates, it drives the right shaft block, and the teeth on the right shaft block engage with the pawls on the shaft bowl to make the wheel move forward. When braking, squ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C9/18
Inventor 朱剑君
Owner 宁波市凹凸重工有限公司
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