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: 2014-09-17
SHANGHAI SANY TECH
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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
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0023] Such as figure 1 and figure 2 As shown, the present invention is an embodiment of the system for preventing the boom from overturning, which includes the angle sensing device 2 linked with the boom 1 and the luffing solenoid valve with the crawler crane (not shown in the figure) The connected control device (not shown in the figure), the control device is connected with the angle sensor device 2, and the maximum back angle value allowed by the boom 1 is preset in the control device; The anti-roll bar 4 connected to the frame 1 and the boarding platform 3 of the crawler crane has a tie rod 5 hinged between the anti-roll bar 4 and the jib 1, and the tie bar 5 is provided with a telescopic structure 51. When the telescopic structure 51 is at the maximum stroke The length of the tie rod 5 ...
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The invention discloses a system and method for preventing rearward tipping of a boom and a crane, belonging to the field of crawler crane control systems, including an angle sensing device linked with the boom and a control device connected with a luffing solenoid valve of the crawler crane. The control device is connected with the angle sensing device, and the maximum allowable back tilt angle value of the boom is preset in the control device; the anti-roll bar at both ends is respectively connected with the boom frame of the crawler crane and the boarding platform of the crawler crane, and the anti-back tilt bar There is also a pull rod hinged between the rod and the arm frame. The pull rod is provided with a telescopic structure and an easy-to-break section, and the easy-to-break section is broken when the two ends of the pull rod continue to receive tension after reaching the maximum length. The beneficial effect of the technical solution is that the prompt and protection are realized through the electric control system and the mechanical structure, which can effectively prevent the boom from tipping over backwards and avoid accidents. The structure is simple, safe and reliable, the cost is low, and it is easy to manufacture and install, and the application can be realized without extra space for placement.
Description
technical field [0001] The invention relates to a control system of a crawler crane, in particular to a system and method for preventing a boom from tipping backwards and a crane. Background technique [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. Contents of the invention [0003] Aiming at the above-mentioned problems existing in the existing crawler cranes, a system and method for preventing backward tipping of the boom and a crane are provided to remind the operator when the boom of the crawler crane is raised beyond the maximum angle. [0004] The specific technical scheme is as follows: [0005] A system for preventing rearward tipping of a jib, comprising [0006] An angle sensing device linked to the boom and a control device connected to the luffing solenoid valve of th...
Claims
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IPC IPC(8): B66C23/90B66C23/36
Inventor 李珍珠汪泽波张啸飞
Owner SHANGHAI SANY TECH