An active protection device for boom breakage

Abstract

The invention relates to an active suspension arm breakage prevention device which comprises a suspension arm. Multiple sliding grooves are formed in the upper end face of the suspension arm, sliding blocks are arranged in the sliding grooves, and the right ends of the sliding blocks are connected with the suspension arm through first tension springs. Two clamping blocks parallel in a front and back mode and capable of sliding in a front-back mode are arranged on each sliding block, and the two clamping blocks are respectively connected with the corresponding sliding block through second tension springs on the outer sides of the clamping blocks. Two L-shaped grooves are formed in the groove bottom of each sliding groove, and the lower portions of the two clamping blocks are arranged in the two L-shaped grooves. Two clamping arms parallel in a front-back mode are arranged on the suspension arm, the right ends of the clamping arms are hinged to the suspension arm, the two clamping arms are arranged between the two clamping blocks, and the lower ends of the two clamping blocks penetrate through the L-shaped grooves and are respectively in contact with the two clamping arms. Multiple supporting frames are arranged on the suspension arm, the left ends of the supporting frames are hinged to the suspension arm, and straight grooves are formed in the left ends of the supporting frames. A clamping block capable of vertically sliding is arranged on the suspension arm, and the upper end of the clamping block is connected with the suspension arm through a spring. Safety ropes are arranged on the supporting frames, and one end of each safety rope is clamped between the two corresponding clamping arms. A steel wire rope is clamped between the two clamping blocks.

Description

technical field [0001] The invention relates to the technical field of lifting equipment, in particular to an active protection device for boom breakage. Background technique [0002] In the field of lifting equipment, some large-scale lifting machinery, such as tower cranes, bridge cranes, and truck-mounted cranes, all need to use booms to complete the lifting and transfer of heavy objects. It is more and more favored by people; however, in recent years, accidents of breaking the boom of the truck-mounted crane have occurred from time to time, and the broken boom will fall, and because the boom itself is heavy and the working position is high, when the crane When the arm falls to the ground or platform, it is very easy to cause casualties to varying degrees and damage to vehicles and equipment on the construction site, which brings a lot of unnecessary troubles and property losses to the project construction, especially in some serious accidents. The number of casualties i...

AI Technical Summary

Problems solved by technology

[0002] In the field of lifting equipment, some large-scale lifting machinery such as tower cranes, bridge cranes, truck-mounted cranes, etc., all need to use booms to complete the lifting and transfer of heavy objects. It is more and more popular among people; however, in recent years, accidents of breaking the boom of the truck-mounted crane have occurred frequently, and the broken boom will fall, and because the boom itself is heavy and the working position is high, when the crane When the arm falls to the ground or platform, it is very easy to cause casualties to varying degrees and damage to vehicles and equipment on the construction site, which brings a lot of unnecessary troubles and property losses to the project construction, especially in some serious accidents. The number of casualties is often large, so the truck-mounted crane poses a great safety threat to the on-site construction personnel during the operation

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