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Crawler crane moment limiting system

A crawler crane and crane technology, which is applied to cranes, load hanging components, safety devices, etc., can solve the problems of limiting the use range of the torque limiter, unable to meet the crawler cranes, unfriendly man-machine interface, etc., and achieves more and more reliable control. High performance, easy installation and maintenance

Inactive Publication Date: 2010-07-21
ZHEJIANG SANY EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional crawler crane torque limiter system, such as a kind of intelligent liquid crystal moment limiter for crane provided by Chinese patent CN95200573; Weight limiters all use single-chip microcomputer as the core controller, which has low computing power, poor scalability, inconvenient maintenance, and unfriendly human-machine interface. These inherent defects limit the scope of use of torque limiters. Can not meet the growing needs of crawler cranes

Method used

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  • Crawler crane moment limiting system
  • Crawler crane moment limiting system
  • Crawler crane moment limiting system

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Embodiment Construction

[0016] The structural features of the crawler crane moment limiting system of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] figure 1 , figure 2 It is a structural schematic diagram of an embodiment of the crawler crane moment limiting system of the present invention. Such as figure 1 As shown, the crawler crane moment limiting system of the present invention includes three parts: a sensor part 1, a display part 3 and a main control box 3 connected between the sensor part 1 and the display part 3. The main control box 3 is a modular independent board structure, and the main control box 3 includes a main controller 21 with a crane torque processing system 211 inside.

[0018] Such as figure 2 As shown, in this embodiment, the main control box 2 also includes an analog-to-digital conversion (A / D) module 23 connected to the main controller 21, a record storage module 28, a CAN bus communication m...

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Abstract

The invention discloses a crawler crane moment limiting system, which comprises a sensor part, a display part and a main control box which is connected between the sensor part and the display part. The main control box has a modular independent board structure. A main controller is arranged in the main control box; and a crane moment processing system is arranged in the main controller. The crane moment processing system can acquire an accurate limited moment of a crane and a protection signal according to a mathematical model and a load curve of the crane. Peripheral modules can be freely expanded by using the main controller as a core. Therefore, the aims of strong extensibility, flexible use, convenient installation and maintenance, good universality, high reliability and more accurate and safer control are fulfilled.

Description

technical field [0001] The invention relates to a moment limiting system, in particular to a moment limiting system suitable for crawler cranes. Background technique [0002] The moment limiting system on the crawler crane can effectively prevent the crane from overturning due to overload and improve the safety of the crane operation. It is an essential safety control device for the crawler crane. With the development of large-tonnage crawler cranes, the mathematical model, working conditions, and control algorithms of crawler cranes have become more complex. Therefore, the requirements for the computing power and communication capabilities of the moment limiter are also getting higher and higher. Traditional crawler crane torque limiter system, such as a kind of intelligent liquid crystal moment limiter for crane provided by Chinese patent CN95200573; Weight limiters all use single-chip microcomputer as the core controller, which has low computing power, poor scalability, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/88B66C15/06B66C13/18
Inventor 章云徽尹盼
Owner ZHEJIANG SANY EQUIP
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