To transport heavy: what is the working principle of spider type aerial work platform?       

In recent years, with the rapid development of China's economy, there are a large number of buildings, hotels and other buildings with high internal space structure. When installing, maintaining, decorating and cleaning the buildings, one must have aerial work equipment.

Spider type aerial work platform has 4 independent spider type hydraulic control legs, which can obtain larger supporting area. It has the advantages of high reliability, high efficiency, wide working range and strong adaptability. When the aerial work platform is working, the 4 legs of the chassis are lowered to make the whole car body out of the ground. But the uneven work place may lead to the ten tilt state at the chassis, reducing the overturning stability of the aerial work platform, so it is necessary to adjust the chassis so as to ensure the safety of the operation. Using AMESim software to control the chassis leveling leg hydraulic system simulation analysis, which can simulate the chassis leveling platform in complex soil condition, dynamic characteristic curve outrigger hydraulic system, and provide reference for the design of hydraulic control leg.

The structure of spider type aerial work platform: the car part of the soil handling device includes telescopic boom device, folding arm device, basket device, slewing device; the car part includes outrigger device, walking device.

Operation of the aerial work platform, it must first be 4 legs stretched out, make the whole body lifting off the ground, then according to the actual situation of the soil sites, independent operation of one or a plurality of legs and control action of the car chassis at the ten level, in order to improve the anti overturning ability in the process of operation. The leg can leave the whole body away from the ground, which can prolong the service life of the chassis and enlarge the working range of the aerial work platform.

The leveling system consists of detection device, control device and leveling actuator. The detecting device is switches and pressure sensors, ten axis tilt sensor on the chassis supporting legs, wherein the biaxial sensor for detecting the inclination of the chassis, the detection value as a levelling control system based on the detection accuracy directly affects the chassis leveling precision. The control device is PLC control and electromagnetic proportional valve control handle, electromagnetic reversing valve power button. The leveling actuator is mainly composed of 4 sets of valve controlled single rod piston hydraulic cylinder and solenoid valve with self-locking function.