The invention provides a telescopic boom crane which comprises a chassis assembly, a rotary assembly, a boom system, a luffing system and a counterweight mechanism, the boom system is telescopically connected to the rotary assembly, the luffing system is provided with a luffing device, and the luffing device comprises a luffing winch, a fixed pulley block, a movable pulley block, a steel wire rope and a pull plate. The variable-amplitude winch is connected to a bottom knuckle arm of the arm support system, the fixed pulley block is connected to a top knuckle arm of the arm support system, the pulling plate is connected to the balance weight mechanism, the movable pulley block is connected to the pulling plate, one end of the steel wire rope is connected to the variable-amplitude winch, and the other end of the steel wire rope sequentially bypasses the fixed pulley block and the movable pulley block and then is connected with the fixed pulley block. When the variable-amplitude winch is rotated to tighten the steel wire rope, the arm support system rises in the direction away from the ground under the action of the tension of the steel wire rope, and the angle between the arm support system and the ground is increased. According to the telescopic boom crane, the length of the boom frame can be adjusted, transition transportation can be achieved, the high lifting performance is achieved, and the requirement of a user for rapid disassembly and assembly is met.
本发明提供一种伸缩臂起重机,包括底盘总成、回转总成、臂架系统、变幅系统和配重机构,臂架系统可伸缩地连接在回转总成上,变幅系统设有变幅装置,变幅装置包括变幅卷扬、定滑轮组、动滑轮组、钢丝绳和拉板,变幅卷扬连接在臂架系统的底节臂,定滑轮组连接在臂架系统的顶节臂,拉板连接于配重机构,动滑轮组连接于拉板,钢丝绳的一端连接于变幅卷扬,钢丝绳的另一端依次绕过定滑轮组、动滑轮组后与定滑轮组连接,转动变幅卷扬使钢丝绳收紧时,臂架系统在钢丝绳拉力的作用下向着远离地面的方向升起,臂架系统与地面之间的角度增大。本发明的伸缩臂起重机不仅能够调节臂架长度及转场运输,还具有高起重性能,满足用户的快速拆装的要求。
Telescopic boom crane
伸缩臂起重机
2024-12-06
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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