Crane and rotational weight-balancing device thereof

A technology for counterweight devices and cranes, which is applied to cranes and other directions, can solve the problems of poor stability and lifting performance of counterweight devices, and achieve the effect of improving stability and lifting performance

Inactive Publication Date: 2015-08-12
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a crane and a crane rotating counterweight device to solve the problems of poor stability and lifting performance of the counterweight device in the prior art

Method used

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  • Crane and rotational weight-balancing device thereof
  • Crane and rotational weight-balancing device thereof
  • Crane and rotational weight-balancing device thereof

Examples

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Comparison scheme
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Embodiment Construction

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0025] see figure 2 As shown, according to the embodiment of the present invention, a rotating counterweight device for a crane is provided. The crane rotating counterweight device is arranged on the turntable 50 of the crane, the crane rotating counterweight device includes a counterweight 10 and a drive mechanism 20, the counterweight 10 is arranged on the bottom of the first side of the turntable 50; the drive mechanism 20 is arranged on the turntable 50 and the counterweight 10 to drive the counterweight 10 to rotate at the bottom of the turntable 50 . Wherein, the driving mechanism 20 includes an oil cylinder 21 and a link mechanism 22, the oil cylinder 21 is hinged on the turntable 50; the link mechanism 22 is connected between the turntable...

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PUM

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Abstract

The invention provides a crane and a rotational weight-balancing device thereof. The rotational weight-balancing device is arranged on a rotary table of the crane and comprises: a balancing weight, which is arranged on the bottom of a first side of the rotary table; and a driving mechanism, which is disposed between the rotary table and the balancing weight to drive the balancing weight to rotate on the bottom of the rotary table. The driving mechanism comprises: an oil cylinder being hinged to the rotary table; and a connecting rod mechanism connected between the rotary table and the balancing weight, wherein the connecting rod mechanism is connected to the oil cylinder to drive the balancing weight to rotate on the bottom of the rotary table. The crane and the rotational weight-balancing device are adjustable in moment of force so that the crane is improved in stability and lifting performances.

Description

technical field [0001] The invention relates to the technical field of counterweight devices, and more particularly, to a crane and a crane rotating counterweight device. Background technique [0002] The counterweight device is an important component of the truck crane, which is used to balance the working load of the crane, and its weight has a great influence on the stability and lifting performance of the crane. The counterweight device of small tonnage cranes generally adopts a fixed structure, but for medium and large tonnage cranes, due to the weight of the whole machine and the weight of the bridge core, the weight of the fixed counterweight device is limited, thus limiting the stability and lifting performance of the crane . [0003] figure 1 The structure of the counterweight device of a traditional crane is shown, in which the counterweight 4 is fixed at the tail of the turntable 1 through bolts 2 and nuts 3. The stability moment of the crane with this structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/76
CPCB66C23/76
Inventor 李彦亮
Owner BEIQI FOTON MOTOR CO LTD
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