Recently, a kind of "national high-low-altitude vehicle telescopic arm and hook synchronous action device" independently designed and developed by Shimei Machinery Co., Ltd. has obtained the national utility model patent. The patented device realizes the synchronous movement of the telescopic arm of the high and low-altitude operation vehicle and the hook retracting, solves the problem that the hook and the telescopic arm interfere in the working at high and low altitudes, and greatly improves the safety and the use efficiency of the high and low-altitude operation vehicles.
Shimei Machinery Co., Ltd. is a professional manufacturer of truck-mounted cranes and various special-purpose vehicles. The series of high-low-altitude vehicles developed by R&D are favored by users at home and abroad. The high and low-altitude work vehicle is a kind of engineering work vehicle integrating the three functions of aerial work, low-altitude work and hoisting work. It is construction, maintenance and repair in the fields of electric power, communication, transportation, municipal, fire, rescue, construction and other industries. The ideal equipment for operations, mainly used to transport workers and work equipment to a specified height or depth for engineering operations. During the operation, the lifting and retracting of the telescopic arm and the hook need to be separately controlled. The operator who controls the telescopic arm retracting is difficult to see the state of the hook during the operation, resulting in the hook and the telescopic arm. The arm or folding arm is prone to interference, low work efficiency, and damage to the machine.
To this end, the stone coal machine company independently innovated, designed and invented the telescopic arm and the hook synchronous action device, which is controlled by the electro-hydraulic proportional valve to control the telescopic control valve plate and the winch control valve plate simultaneously open and close. When the vehicle is working at high and low altitudes, the telescopic arm and the hook are retracted, which simplifies the operation steps and improves the working efficiency. During the extension and retraction of the telescopic arm, the hook can be kept in tension, preventing the hook from interfering with the telescopic arm, which not only protects the equipment, but also ensures the safety of the staff. It is a multifunctional and multi-purpose for the high and low-altitude operation vehicles. Hybrid operations provide security technical support.
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