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System and method for preventing boom from backward tilting and crane

A technology for anti-back tilting and cranes, applied in the direction of cranes, etc., can solve problems such as boom tipping, casualties, equipment damage, etc., and achieve the effects of avoiding accidents, low cost, and easy manufacturing and installation

Inactive Publication Date: 2012-11-28
SHANGHAI SANY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the crawler crane is installed or hoisted, it is often necessary to raise the boom to a certain angle. , the boom will tip over backwards, causing equipment damage, even tipping over, and serious accidents involving casualties

Method used

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  • System and method for preventing boom from backward tilting and crane
  • System and method for preventing boom from backward tilting and crane

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Embodiment Construction

[0022] The following combined with the attachment and the specific embodiments further explained the present invention, but it is not limited to the present invention.

[0023] like figure 1 and figure 2 It is shown in, an embodiment of the system that prevents the back of the arm frame from tilting the back frame.The control device of the connection (not drawn in the figure), the control device and the angle sensing device 2 are connected, and the internal preset of the control device has the maximum rear angle value allowed by the arm frame 1;The anti -rear tilt rod 4 connected to the car platform 3 of the rack and crane crane, the anti -rear tilt rod 4 and the arm frame 1 also hinged with a lever 5, the lever 5 has a telescopic structure 51, the telescopic structure 51 is at the largest trip to the maximum itinerary.The length of the lever 5 is the distance between the tie rod 5 and the arm rack 1 connection to the tie rod 5 and the anti -rear tilt rod 4 connection part at the ...

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Abstract

The invention discloses a system and method for preventing a boom from backward tilting and a crane, belonging to the field of crawler crane control systems. The system comprises an angle sensing device and a control device, wherein the angle sensing device is connected with a boom; the control device is connected with an amplitude variable solenoid valve of a crawler crane; the control device is connected with the angle sensing device; the maximum backward tilt angle value allowed by the boom is preset in the control device; the system also comprises a backward tilting preventing rod with two ends respectively connected with the boom of the crawler crane and a loading platform of the crawler crane; a pull rod is also hinged between the backward tilting preventing rod and the boom and is provided with a retractable structure and a section easy to snap; and the section easy to snap is snapped when the two ends continuously endure tension after the pull rod reaches the maximum length. According to the technical scheme, the following beneficial effects are achieved: prompt and protection effects are achieved through an electrical control system and a mechanical structure, the boom can be effectively prevented from backward tilting and accidents are avoided; and the system is simple in structure, is low in cost, is safe and reliable, is easy to manufacture and install and can be applied without extra space for placement.

Description

Technical field [0001] The present invention involves a track control system, especially a system and method and crane to prevent the back of the back of the back frame. Background technique [0002] When the crawler crane is installed or lifted, you often need to pull the arm frame to a certain angle, but if the operating hand is improperly grasped or misunderstood during the operation of the operationThe arm rack will be tilted afterwards, causing damage to the equipment, even a serious accident with the casualties. Invention content [0003] For the above problems existing in the existing crawler cranes, a designed to provide a system and method and crane for the crawler crane litter that reminds the operator to prevent the swing of the arm rack. [0004] The specific technical solution is as follows: [0005] A system that prevents the back of the arm frame, including [0006] The angle sensing device with the angle of the arm rack linkage and the control device connected to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/90B66C23/36
Inventor 李珍珠汪泽波张啸飞
Owner SHANGHAI SANY TECH
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