There are three main types of household elevators: hydraulic type, screw type and traction type.

There are three main types of household elevators: hydraulic type, screw type and traction type.

1. Traction Household Elevator

Summary: Household traction ladder can be divided into traditional traction wire rope ladder and new traction belt ladder. The tractor is located at the top of the shaft. The traction wire rope/strip connects the car and the counterweight device through the traction wheel. A guide wheel is placed on the tractor to make the car run normally in the well without collision with the counterweight. The motor rotates to drive the traction wheel, and the steel rope/belt drives the car to operate relative to the counterweight.

1.1: Advantages of tractive household elevator

1.1.1: Smooth operation, energy saving and environmental protection

The main engine adopts permanent magnet synchronous gearless tractor, which has low noise and a power of more than one kilowatt. The main engine is located at the top, and the noise source is far away.

1.1.2: Flexible structure, economical price

The traction elevator can be divided into gantry type and backpack type, platform type and sedan car type, steel belt and wire rope. The appropriate scheme is designed according to the actual situation on site. Traction elevator is a modern product, which can save a lot of cost.

1.2: Disadvantage of traction type household elevator

1.2.1: slightly higher requirements for civil engineering

The top floor requires more than 2600 mm and the bottom pit reserved more than 200 mm.

1.2.2: There are many manufacturers with uneven quality.

2. Screw Household Elevator

Summary: The screw elevator uses motor as power source. The motor is connected with the nut through belt, and the nut thread and the screw thread mesh Yin and Yang. When the motor works, the drive nut moves on the screw, thus driving the car up and down. Safety is higher because there is always something under it. Even if the power is lost and the free falling body drops, the screw will also drive the motor to do greater negative work. The descent will be very slow, so the elevator will not fall, and as long as the screw is locked, the free falling body will be prevented.

2.1: Advantages of Screw Household Elevator

2.1.1: Low Civil Requirements and High Space Utilization Rate

The bottom pit of screw elevator is only 50mm, and the top floor requirement is very low. Moreover, the screw elevator is platform type, without sedan car wall structure, and has high space utilization rate.

2.1.2: Simple structure and high safety

Screw household elevator has simple structure, less vulnerable parts and less troubles for customers'later maintenance. The structural principle of screw elevator prevents the screw elevator from rushing to the top and squatting to the bottom, so screw elevator is also the first choice to install elevators in compound buildings.

2.2: Disadvantage of Screw Household Elevator

2.2.1: High mechanical noise

Screw elevators are nuts that rotate on the screw, so the mechanical noise is greater than other elevators, and the noise source is closer.

2.2.2: Slow running speed

The speed of screw elevator is only 0.15m/s. The traction elevator can achieve 0.4m/s, and the speed difference is large. 1.1: Advantages of Hydraulic Household Elevator

3. Hydraulic Household Elevator

Summary: Hydraulic lift relies on hydraulic lift. Hydraulic elevator is an elevator that pushes oil into the cylinder to make the plunger move in a straight line, directly or indirectly through the wire rope to make the car move. Hydraulic elevator is a product of mechanical, electrical, electronic and hydraulic integration. It consists of the following relatively independent but interrelated systems. Pumping station system, hydraulic system, guidance system, car, door system, electrical control system, safety protection system.

3.1: Advantages of Hydraulic Household Elevator

3.1.1: Hydraulic elevators have low requirements for civil structures

As long as the top floor height can be installed above 2600 mm, the foundation pit above 100 mm can be satisfied.

3.1.2: Hydraulic elevator will not overspeed and out of control

3.2: Disadvantage of Hydraulic Household Elevator

3.2.1: Insufficient comfort

The noise source produced by the motor and the oil pump is relatively close, and the operation is not stable. The speed regulation is regulated by the oil volume and pressure of the pump station, so the elevator has the feeling of shaking or sinking when it is running.

3.2.2: Oil leakage will occur

After the service life of the cylinder piston expires, or when there is wear and tear, the hydraulic oil will leak into the well path, which will easily cause indoor air to be polluted by oil.