Interpretation of the composition of the lifting system by manufacturers of three-dimensional garages

The lifting system inside the garage undertakes the task of taking and placing the car, requiring the elevator fork to run smoothly in the up and down process, accurate parking, and no impact. Stereo garage manufacturer‍'s lifting system consists of five parts: driving and braking system, suspension chain and sprocket system, elevator fork and guiding system, counterweight system, elevator fork position detection and safety limit system.

1. Drive and braking system of lifting mechanism

The driving and braking system is installed at the top of the garage and uses the suspension chain and sprocket system to lift and lower the elevator fork. To ensure the reliability of the system, a deceleration motor with a brake can be selected. The brake type is a double-block normally closed electromagnetic brake, which holds the elevator fork in place when the power is cut off. The motor drive uses frequency conversion speed control, and the lifting speed of the elevator fork is continuously adjustable.

2. Suspension chain and sprocket system of lifting mechanism

The suspension chain and sprocket system consists of several parts including sprocket system, chain, chain vibration damping device, and chain break sensing mechanism. The distance between the driven sprocket and the vertical direction is adjustable to tension the chain and prevent chain tooth disengagement caused by chain vibration during elevator fork operation. The chain break sensing mechanism is an important safety monitoring device for the tower-type stereo parking garage, installed at the end of the counterweight system chain. When the chain is working normally, the compression spring in the chain break sensing mechanism is compressed; when any chain breaks, the compressed spring expands, and the travel switch on the pressure block on top of the compression spring is triggered to send an alarm signal.

3. Counterweight system of lifting mechanism

The function of the counterweight system is to reduce the power of the drive motor and the torque on the driven sprocket. The counterweight block material is industrial pure iron, and its weight should meet the effective load on the output shaft of the drive motor when the elevator fork is empty or loaded. The counterweight bracket consists of a pair of screws and two channel steels. The counterweight blocks are stacked between the two channel steels through the screws, and the upper part of the screw is connected to the pulley bracket base with a nut. The guiding device is used to effectively guide the counterweight during the operation of the elevator fork, and the guide rail is installed on the channel steel firmly connected with the steel structure of the garage body using adjustable pressure plates.

In addition, there is the elevator fork position detection and safety limit system of the lifting mechanism, usually composed of thin steel plates and magnetic sensors installed at appropriate positions on each parking level of the garage lift guide rail, and at the bottom and top of the guide rail. When the elevator fork moves up and down, the thin steel plate passes through the magnetic sensor to send a detection signal. To prevent the elevator fork from running abnormally and running out of the guide rail, safety limit devices are set at the bottom and top of the guide rail. When the elevator fork approaches these two limit positions, the magnetic sensor sends a signal to decelerate the motor to stop, and stereo garage manufacturers also set mechanical limit blocks at both ends of the guide rail for double insurance.