What is the principle of elevator mechanical structure

Update:28 Dec 2019
Summary:

The elevator can be divided into fixed type and mobile […]

The elevator can be divided into fixed type and mobile type, guide rail type, curved arm type, scissor type, chain type, loading and unloading platform, etc.
Guide rail type hydraulic elevator is a non scissor type hydraulic elevator. The characteristics of the elevator are that the guide rail type hydraulic elevator adopts heavy chain drive, oil wire rope as insurance, the guide rail type hydraulic elevator adopts hydraulic explosion-proof oil pipe, is equipped with safety device to prevent overload, is equipped with multiple limit switch protection, is equipped with door opening power-off protection device, is equipped with leakage protection device, and is equipped with There are multi-storey interactive chain, so the safety factor of rail type hydraulic elevator is much higher than that of ordinary elevator; it is a very widely used vertical cargo transportation equipment. It drives the oil pump through the motor and drives the heavy chain by the oil cylinder to drive the hydraulic elevator to rise and fall horizontally.

Because it uses the hydraulic pressure as the lifting power, it has the characteristics of large load, stable lifting and so on. It is widely used in the vertical transportation of goods between high-rise buildings. Guide rail type hydraulic elevator adopts oil cylinder and chain drive, with fewer moving parts, so the maintenance workload is less than that of scissor type hydraulic elevator; guide rail type hydraulic elevator has compact structure, less bearings than scissor type hydraulic elevator, and its service life is much longer than that of scissor type hydraulic elevator; Guide rail type hydraulic elevator adopts hydraulic drive, so the load capacity is much longer Relatively large; the conveying height of the rail type hydraulic elevator is much higher than that of the scissor type hydraulic elevator, up to tens of meters, and its stability is also better than that of the scissor type hydraulic elevator; the rail type hydraulic elevator uses its own weight and cargo weight for lowering, so it is more economical than the ordinary freight elevator; the hydraulic elevator uses PLC, which can realize intelligent control and display At the same time, the circuit is simple and the failure rate is low.

According to the different elevator structure: scissor lift (fixed scissor lift, mobile lift), cylinder set lift, aluminum alloy (column) lift, bent arm lift (renewal of folding arm type), oil cylinder straight top lift, guide rail chain lift (elevator, freight elevator), cable type hydraulic lift. The hydraulic oil forms a certain pressure by the vane pump, and enters the lower end of the hydraulic cylinder through the oil filter, explosion-proof electromagnetic reversing valve, throttle valve, hydraulic control check valve and balance valve, so as to make the piston of the hydraulic cylinder move upward and lift the heavy objects. The return oil at the upper end of the hydraulic cylinder returns to the oil tank through the explosion-proof electromagnetic reversing valve, and its rated pressure is adjusted through the overflow valve, and the reading value of the pressure gauge is observed through the pressure gauge.