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Counterweight shifting device and crane

A technology of moving device and counterweight frame, which is applied to cranes, transportation and packaging, etc., can solve problems such as limiting lifting performance, and achieve the effect of avoiding the movement of the whole crane, improving stability and simple structure.

Pending Publication Date: 2019-01-29
SANY AUTOMOBILE HOISTING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a counterweight moving device and a crane to solve the technical problem that the counterweight structure in the prior art limits the improvement of lifting performance

Method used

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  • Counterweight shifting device and crane
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Embodiment Construction

[0025] 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.

[0026] 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 directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0027] Such as figure 1 and figure 2 As shown, the present invention provides a counterweight moving devi...

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Abstract

The invention relates to the technical field of cranes, in particular to a counterweight shifting device and a crane. The counterweight shifting device comprises a counterweight frame, connecting assemblies, transmission assemblies and driving parts; the counterweight frame is used for being connected with a rotating table, and the connecting assemblies are used for being connected with counterweights; the connecting assemblies are rotatably connected with the counterweight frame, the driving parts are fixed to the counterweight frame, and are connected with the connecting assemblies through the transmission assemblies to drive the connecting assemblies to rotate, so as to adjust the set reference distance between the connecting assemblies and the counterweight frame. According to the counterweight shifting device, the position of the counterweights relative to the rotating table can be changed under the condition that the counterweight amount is unchanged, that is, the position of a counterweight working point, thus the gravity center of the crane is changed, then the counterweight performance of the crane is enhanced, and whole moving of the crane is avoided, so that the stability performance of the crane is improved.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a counterweight moving device and a crane. Background technique [0002] At present, there are two ways to increase the lifting capacity of a truck crane under the same working condition: one way is to stop the work first, retract the outriggers, move the whole vehicle to a suitable position, and then extend the outriggers, and then Carrying out normal hoisting work, this method not only reduces the efficiency of the whole vehicle operation, but also increases the fatigue of the operator. [0003] Another way is to increase the counterweight. At present, most cranes are mainly fixed counterweights, especially small and medium tonnage cranes. Because the increase of the counterweight is limited by the work table, and when it reaches the maximum counterweight, it can only be solved by moving the whole vehicle. [0004] The current fixed counterweight structure limits the improveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/62B66C23/74
CPCB66C23/62B66C23/74B66C2700/03B66C23/76B66C2700/0392
Inventor 杨春苏龙杨尚峰
Owner SANY AUTOMOBILE HOISTING MACHINERY
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