Concrete Placing Boom Machine Loads and Constraints
The load and constraints of the Concrete Placing Boom Machine, the working characteristics of the machine and the construction site investigations show that the load and constraints of the Concrete Placing Boom Machine are very complicated.
Referring to the relevant design specifications and working conditions, combined with the simulation results of multi-body dynamics system, the worst working condition combination of the cloth machine is obtained: that is, the cloth machine is tilted at an angle, the booms are fully extended, and the boom is Located at an elevation angle and at a high position, the wind is supported by the maximum wind receiving area (according to level 6), and additional dynamic loads are considered. The main loads considered in the calculation are: the weight of the boom, the weight of the belt and the roller, the material to be transported, the weight of the pipe and material, the wind load, and the additional dynamic load.
The Concrete Placing Boom Machine has a complex structure and variable load conditions, but its system constraints are relatively stable. F1 is the weight of the construction personnel, located at the head of the basic boom, F2 represents the stacking weight of the hopper, located at the head of the front boom, P is the weight of the boom, the weight of the belt and the roller, the vertical direction of the conveying material and the wind load Partial uniform load. The hinge of the AConcrete Placing Boom Machine and the chassis bracket; the hinge B is the hinge of the Concrete Placing Boom Machine and the luffing cylinder. Corresponding to the physical structure of the machine, the hinge position.
