Torque control method and device for crawler crane installation, and crawler crane

A technology of a crawler crane and a control method, which is applied to the safety devices of lifting equipment, cranes, lifting devices, etc., can solve the problems of calculation and non-overturning moment, and achieve the effect of large safe working range and safe torque.

Active Publication Date: 2012-12-05
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention discloses a method and device for controlling the moment of crawler crane installation and the crawler crane, which are used to solve the problem in the prior art that the tilting moment is not calculated under the installation working condition

Method used

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  • Torque control method and device for crawler crane installation, and crawler crane
  • Torque control method and device for crawler crane installation, and crawler crane
  • Torque control method and device for crawler crane installation, and crawler crane

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments in the present application 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.

[0028] figure 1 It is a main flow chart of a method for controlling the moment of crawler crane installation in the embodiment of the present invention.

[0029] figure 2 It is a flow chart for obtaining the overturning moment and the hoisted weight according to the embodiment of the present invention.

[0030] image 3 It is a flow chart of obtaining operation prompt information according to an embodiment of the present invention.

[0031] see figure 1 As shown, a method for controlling the moment of crawler crane installation, including: a. Obtain the overturning moment and hoisting weight when the crawler crane is installed; and b. Compare the overturning moment with the preset maximum...

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Abstract

Disclosed are a torque control method for crawler crane installation, a device therefor and a crawler crane. The torque control method for installation comprises: obtaining a tilting moment and hoisting load of a crawler crane when it is being installed; comparing the tilting moment with a preset maximum stable moment; and comparing the hoisting load with a preset maximum hoisting load, and outputting different prompt messages according to the comparison results. The torque control device for the crawler crane installation comprises: an angular position sensor (6) provided on a main arm mast (5) of the crawler crane, used for collecting angle data of the main arm mast (5); a lifting wire rope tension sensor (7) provided on the top of a lifting wire rope (4) of the crawler crane, used for collecting tensile data of the lifting wire rope (4); or a load sensor (9) provided on a lifting cylinder (8), used for collecting data on the pressure of the lifting cylinder (8); and a central controller (1) for processing the collected data. Using the control method or device can ensure moment safety when hoisting, and also can enable the mast to have a larger safe working range when hoisting a light load.

Description

technical field [0001] The invention relates to a method and a device for controlling moment of crawler crane installation and the crawler crane. Background technique [0002] At this stage, the moment limiters of all crawler cranes at home and abroad only calculate and limit the moment under working conditions, and do not calculate the moment during installation conditions. Under the installation conditions, it depends entirely on the operation The operator judges whether it is safe and does not tip over based on experience, and careless operation when hoisting the track will lead to a safety tipping accident. In view of the safety needs, the products of individual companies have considered this. A safety limit switch is installed at the maximum safe angle in front of the mast to ensure that when the crane is installed, the mast can only work at a safe angle under the maximum lifting condition of the hoisting cylinder. , thus greatly sacrificing the light-load hoisting ran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/36
CPCB66C13/22B66F17/00B66C23/36
Inventor 詹纯新刘权高一平黄赞黎伟福滕宏珍
Owner ZOOMLION HEAVY IND CO LTD
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