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Crane and crane counterweight loading-unloading method

A crane and counterweight technology, applied in cranes and other directions, can solve the problems of complex transition process, limited types of counterweights, and high cost, and achieve the effects of reducing transportation weight, improving space utilization, and reducing transportation costs.

Active Publication Date: 2018-04-13
SANY AUTOMOBILE HOISTING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a crane and a crane loading and unloading method to solve the technical problem that the counterweight loading and unloading device in the prior art limits the types of counterweights, resulting in complicated and costly crane transportation and transfer processes

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  • Crane and crane counterweight loading-unloading method
  • Crane and crane counterweight loading-unloading method
  • Crane and crane counterweight loading-unloading method

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0036] figure 1 is a structural schematic diag...

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Abstract

The invention relates to the technical field of crane equipment, and particularly relates to a crane and a crane counterweight loading-unloading method. The crane comprises a rotary table, a winchingdevice and a counterweight loading-unloading system, wherein the counterweight loading-unloading system comprises an auxiliary counterweight lifting arm, a lifting appliance, an equivalent counterweight object and a steel wire rope; the auxiliary counterweight lifting arm is arranged on the rotary table; one end of the steel wire rope is wound onto a reel of the winching device; the other end of the steel wire rope sequentially rounds the top of the auxiliary counterweight lifting arm and the lifting appliance and then is fixed to the top of the auxiliary counterweight lifting arm; and the lifting appliance is connected with the equivalent counterweight object. A counterweight loading-unloading process is simple and convenient, so that the counterweight loading-unloading efficiency is increased. Moreover, the existing objects in a working site can be adequately utilized as counterweights, in this way, the number of counterweights is greatly reduced, so that transport is facilitated, the transport cost is lowered, the space utilization rate is increased, the installation efficiency is increased, and then the use cost of the crane is lowered.

Description

technical field [0001] The invention relates to the technical field of hoisting equipment, in particular to a crane and a method for loading and unloading a counterweight of the crane. Background technique [0002] With the rapid development of my country's economic construction, the market demand for large-tonnage cranes is increasing. With the increase of the tonnage of the mobile crane, the stability of the crane can only be guaranteed by increasing the span of the outriggers and the corresponding weight of the counterweight, but the span of the outriggers is affected by the space and stiffness of the outriggers and cannot be increased infinitely. Therefore, increasing the counterweight becomes the best choice to ensure the stability of large-tonnage cranes. [0003] In the related art, the counterweight loading and unloading system commonly used in cranes is that at least one oil cylinder is vertically fixed on the turntable of the truck crane, the stroke direction of t...

Claims

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Application Information

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IPC IPC(8): B66C23/74
CPCB66C23/74
Inventor 胡江林姜冠营张响
Owner SANY AUTOMOBILE HOISTING MACHINERY
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