How to prolong the service life of electric telescopic door
The basic components of the electric telescopic door are guide rail, pulley and drive belt. Because these three parts are directly related to the operation of the electric telescopic door, they are vulnerable parts under the normal use conditions of the electric telescopic door. The structural design, material, processing accuracy, installation and adjustment accuracy determine the maintenance requirements and service life of the electric telescopic door. The service life of the electrical components of the electric telescopic door is mainly related to improper use and accidental accidents.
For a long time, the design of sliding rail of electric telescopic door is completely different from that of non electric telescopic door. The latter usually has two parallel sliding rails in horizontal direction, and two (or four) pulleys are connected with the suspended moving door body through the middle connecting piece. The center of gravity of the moving door body is just between the supporting forces of the two sliding rails, forming a stable "positive suspension". This stable structure can achieve good stability and quiet effect. However, due to the functions of the sliding rail of the electric telescopic door, such as fixing the door frame, hanging and adjusting the door body, installing the electrical components and installing the external cover plate, the simplest way is to design the slide rail as a single side slide, and the door body is hung on the slide rail through the pulley on one side to form the side suspension. The advantages of this design are that it is convenient to install and adjust the door body and easy to maintain. However, this design has many fatal weaknesses.