Elevator traction machine is the elevator power equipment, also known as the elevator host. The function is to transport and transmit the power to make the elevator run. It consists of motors, brakes, couplings, gearboxes, traction wheels, racks and guide wheels and accessory wheel hand wheel and other components. The guide wheels are typically mounted on load-bearing beams in a rack or frame. Some of the wheel hand wheel fixed on the motor shaft, there are usually hanging in the vicinity of the wall, when used in the motor shaft.

one. Sort by deceleration

1. A gear traction machine: the power of the drag device, through the intermediate reducer to the traction wheel on the traction machine, which is usually used gearbox worm gear drive (also useful helical gear), this traction Machine with the motor has a communication, there are DC, generally used for low-speed elevator. The traction ratio is usually 35: 2. If the motor power of the hoisting machine is transmitted through the gearbox to the traction wheel, it is called a gear traction machine and is generally used for low-speed elevators below 2.5 m / s.

2. Gearless traction machine: drag the power of the device, without the middle of the reducer but directly to the traction wheel on the traction machine. Previously this traction machine is mostly DC motor as the driving force, and now has developed a domestic independent intellectual property rights of the exchange of permanent magnet synchronous gearless traction machine. The traction ratio is usually 2: 1 and 1: 1. Load 320kg ~ 2000kg, ladder speed 0.3m / s ~ 4.00m / s. If the power of the motor is not driven directly through the gearbox to the traction wheel is called no gear traction machine, generally used for 2.5m / s high-speed elevators and ultra-high-speed elevators.

3. Flexible transmission mechanism traction machine, when used in the motor shaft.

2. Classification by drive motor

1, the DC traction machine can be divided into DC tooth-driven and DC toothless traction machine.

2. The exchange traction machine can be divided into alternating traction machine, AC non-toothed traction machine and permanent magnet traction machine, in which the traction machine can be subdivided into: worm auxiliary traction machine, cylindrical gear Traction machine, planetary gear trailer, other gears traction machine.

Classification by use

⒈ two-speed passenger and freight elevator traction machine

⒉ VVVF passenger traction machine

⒊ grocery traction machine

⒋ no machine room traction machine

⒌ vehicle elevator traction machine

4. Classification by speed

⒈ low speed traction machine (ν <1 m / s)

⒉ medium speed traction machine (fast traction machine) (ν = 1 m / s to 2 m.

⒊ high-speed traction machine (ν = 2 m / s to 5 m / s)

⒋ ultra-high-speed traction machine (ν> 5 m / s)

5. Classification by structure

⒈ horizontal traction machine

⒉ vertical traction machine