With the rapid development of China's economy, with a high internal space structure of the city complex, shopping centres, gymnasiums, hotels and other buildings increased in large numbers, the installation of these buildings, maintenance, decoration, cleaning and other operations must have aerial work equipment. Both to meet the indoor space and outdoor aerial work of the aerial work equipment only spider access equipment, spider access equipment design light weight, with 4 independent spider type hydraulic control legs, can get a large support area.
The spider access equipment is small in size and narrow in width, and it has the advantages of high reliability, high operating efficiency and wide working range, strong adaptability, etc. Therefore, it is widely used in is indoor construction. spider access equipment operation, the 4 outriggers on the chassis support to make the whole body off the ground, and the outriggers can be used to The legs can level the chassis according to the condition of the ground to ensure the safety of operation. With the help of AMESim software to control the chassis leveling outrigger hydraulic system to do simulation analysis, can simulate the platform under complex soil conditions of the chassis leveling process, to obtain the dynamic characteristics of the outrigger hydraulic system curve, for the future hydraulic control outrigger design to provide reference.
The outrigger hydraulic system of spider access equipment :
Before operation, the 4 outriggers of the spider access equipment are stretched out to lift the whole vehicle off the ground, and then according to the actual situation of the operation site, a single manipulation or simultaneous manipulation of a number of outriggers to make the chassis of the spider access equipment in a horizontal state to ensure that the spider access equipment is levelled. equipment is level. The outriggers keep the whole body off the ground, which can not only prolong the service life of the chassis but also expand the working range of the aerial working platform.
Levelling system of the chassis of spider access equipment:
Composition of the levelling system of spider access equipment The levelling system consists of a detection device, a control device and a levelling actuator. Detection device for the installation of ten chassis on the dual-axis inclination sensors, legs on the micro-switch and pressure sensors, of which the dual-axis sensors are used to detect the inclination of the chassis, and its detection value as the basis of the system leveling control, the detection accuracy has a direct impact on the accuracy of the chassis leveling. The control device is PLC control and electromagnetic proportional valve control handle, electromagnetic directional valve energised button. The levelling actuator mainly consists of 4 groups of valve-controlled single rod hydraulic cylinders with self-locking function and solenoid valves.
