浙江体育超级大乐透 www.mvlkcw.com.cn According to different requirements of use of the elevator, the elevator can be driven traction drive, hydraulic drive, reel drive, and rack and pinion, screw drivers and other means.

one. Traction drive
Wheel drive traction is the use of traction as a driving member. Traction sheave rope hanging on one end of the car suspension, and the other end hanging counterweight by friction between the rope and the traction sheave traction force generating drive the car to run up and down.
1. roping way
Elevator hoisting rope roping method depends on the position of the traction unit, the car rated load and rated speed and other conditions. In the selection, should be considered in determining roping method has a higher transmission efficiency, rational energy consumption and extend the service life of wire rope favor.
2. The traction force calculation
The maximum effective traction sheave grooves can force generated between the rope and the rope wheel grooves coefficient of friction and bypass function traction sheave wrap angle.
3. Measures to improve traction capacity
a. change the rope groove shape and groove rope materials to improve the coefficient of friction.
b. increasing the wrap angle
c. increase the weight of the car
4. In the traction sheave rope grooves than the pressure calculation
5. rope in the rope groove coefficient of friction
6. traction sheave rope grooves worn reason
Factors affecting the life rope, generally also affect the life of the traction sheave, there are several aspects of the following factors:
a. Traction wheel itself
b. wire rope structure, material and physical properties
c. Run the car height
d. Load
e. technical parameters and other parts of the hoisting machine
f. Environmental and maintenance
two. Reel drive
Early elevator drive, hydraulic drive in addition are outside the drive spool. This popular two drum driving hanging rope, one end of each rope is fixed on the reel and the other end is connected to the car or counterweight. A steel cord in a clockwise direction around the spool, and another group rope counterclockwise direction around the spool. Thus, when a group of wire rope around the drum, another set of wire rope around the drum.
The main problem with drum drive elevator the following aspects:
1. Low lift height
2. Rated Load Low
3. Elevator different itinerary, must be equipped with a different drum
4. withstand lateral forces large rail
5. The rope had a dangerous wound and rewound
6. Large energy consumption
three. Other drive mode
1. hydraulic drive
2. Screw Driver
Currently, the actual rarely used.
3. The rack and pinion drive
This drive type is mainly used for the construction elevator.
4. The linear motor drive
In April 1990 the first use of linear motor driven elevator use in Japan. Linear motor for an elevator is the elevator drive significant reforms, it is compared with the conventional driving method, it has a simple structure, less space, energy saving, high reliability.