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Novel low-clearance crane

An empty hoist, low net technology, applied in the direction of crane, traveling mechanism, load suspending element, etc., can solve the problem of segment lifting, etc., and achieve the effect of reducing hoisting clearance, reducing maintenance cost and improving reliability.

Inactive Publication Date: 2020-04-14
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a new type of low-clearance crane, which solves the problem of hoisting segments in a low-clearance environment

Method used

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Such as Figure 1~4 As shown, a novel low headroom crane includes a lifting device 1 , a driving device 2 , a spreader 3 , a connecting rod 4 and a crane beam 5 . The crane girder 5 is H-shaped steel, including an upper flange, a web and a lower flange, which can provide an installation and walking foundation for the lifting device 1 and the driving device 2 . The lifting device 1 and the driving device 2 walk on the crane beam 5, and the driving devic...

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PUM

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Abstract

The invention provides a novel low-clearance crane which comprises a crane beam; a walking lifting device and a driving device are arranged on the crane beam, the driving device is connected with thelifting device to drive the lifting device to walk, and the lifting device is connected with a lifting appliance to control lifting and falling of the lifting appliance. The crane has the beneficial effects that an electric hoist of a traditional crane is replaced by the lifting device and the driving device, so that the hoisting clearance is greatly reduced; an adopted hydraulic oil cylinder hasan overload protection function, so the reliability of the crane is improved, and the requirements of narrow space on the clearance and the performance of the crane are well met; a motor speed reducerand a chain wheel chain of a traditional crane are replaced by a hydraulic motor and a friction wheel driving mechanism, the maintenance cost is reduced, the failure rate is reduced, and the operation is more stable and reliable.

Description

technical field [0001] The invention relates to tunnel construction equipment, in particular to a novel low clearance crane. Background technique [0002] Shield method tunnel construction plays an increasingly widespread role in transportation, water conservancy, electric power, and municipal construction. With the progress of the times, shield method tunnel construction is constantly developing in the direction of safety, efficiency and high reliability. Segment transfer is an essential process in shield tunneling construction. [0003] At this stage, segment cranes usually use electric hoists to lift segments. The electric hoist is generally installed on the crane beam, and the vertical direction will take up a large space. In the narrow tunnel construction environment, if the reserved segment hoisting clearance is low, the design difficulty of the segment crane will be increased. Contents of the invention [0004] The invention proposes a novel low-clearance crane, ...

Claims

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Application Information

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IPC IPC(8): B66C17/06B66C11/00B66C9/08B66C9/14
CPCB66C9/08B66C9/14B66C11/00B66C17/06
Inventor 胡燕伟郭沛霖宋德华袁文征郑康泰
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD