Abstract
The first design of the hydraulic hoist the use of explosion-proof, principle, type and its development process was outlined by the advantages and disadvantages of hydraulic and other types of analysis and comparison determine elevator hydraulic systems design. Then through their work environment and the technical characteristics of the analysis, and refer to the current domestic hydraulic elevator explosion-proof structure of the hydraulic elevator explosion-proof structure of the overall design, including the choice of wire rope, roll the design, spindle Equipment design, the design of the braking system, hydraulic system design and calculation and verification. The design by the explosion-proof motor, a low-speed torque hydraulic motors, axial piston pump, double-blade pump, a variety of control valves, disc brakes, drum, the support shaft and other components。As part of the hydraulic system more complicated, in order to hoist the compact structure, improve the performance of the hydraulic system and indicators, its main circuit and other parts of the portfolio together, constitute the main valve block and control valve block. This hydraulic hoist features: The hydraulic transmission, a stepless speed regulation, compact and simple manipulation, the use of hydraulic control, brake safe and reliable, its biggest advantages is the explosion-proof function. The hydraulic hoist used for mining, ports, terminals and other necessary materials handling establishments, particularly in the coal mine gas, such as containing flammable and explosive gases or other places widely used.
Key words:Hydraulic hoist; design; Computation; Valve group