The operational stability of automobile elevators relies on a complete load-bearing structure system. In addition to the two core components of the car frame and the guide rail system, key components such as the suspension system, shock absorber, and car frame structure also play an irreplaceable role.
As a link between the car and the drive device, the performance of the suspension system directly affects the vertical stability of the car. The suspension of automobile elevators usually uses multiple sets of high-strength steel wire ropes or steel belts. Compared with ordinary elevators, they have larger diameters and more strands, and can withstand tensile forces several times the weight of the vehicle. To ensure the reliability of the suspension system, sufficient safety factors are reserved during the design stage, and each steel wire rope or steel belt is kept in uniform tension through the pre-tightening process. This design not only avoids premature wear caused by uneven force on a single suspension component, but also relies on the remaining components to maintain the stable suspension of the car when a component fails unexpectedly. The tension monitoring device in the suspension system senses tension changes in real time. Once abnormal fluctuations are detected, the safety protection mechanism is immediately triggered to prevent the car from falling or shaking more.
The shock absorber at the bottom of the car is a key barrier to buffer the impact of the vehicle entering. When the vehicle enters the car at a certain speed, if the instantaneous impact energy cannot be effectively absorbed, it will be directly transmitted to the car frame and guide rail system, causing violent vibration. To this end, the car elevator adopts a composite shock absorption design, combining a rubber shock absorber pad and a hydraulic damper double buffer structure. The rubber shock absorber can quickly absorb the high-frequency vibration generated by the impact with its good elastic deformation ability; the hydraulic damper slowly releases the remaining energy by controlling the flow rate of the liquid, suppressing the continuous transmission of low-frequency vibration. The two work together to convert the impact force into heat energy and elastic potential energy, so that the vibration amplitude of the car at the moment of vehicle entry is greatly reduced, effectively reducing the damage to the bearing structure, and providing a stable parking environment for the vehicle.
As the "force transmission center" of the bearing system, the car frame structure undertakes the important mission of optimizing the force transmission path. The car frame of the car elevator adopts a truss structure design, which enhances the overall rigidity through the principle of triangle mechanics, and strengthens the key force-bearing parts according to the characteristics of vehicle load distribution. At the connection point between the car and the suspension system, a combination of spherical joint bearings and high-strength bolts is used to ensure smooth force transmission and allow the car to adjust its posture adaptively within a certain range, reducing stress concentration caused by vehicle center of gravity offset or slight deformation of suspension components. Elastic connection elements are also set between the car frame and the car frame to further isolate vibration transmission, so that the entire load-bearing structure can still maintain stable mechanical properties when facing complex external forces.
As auxiliary components of the suspension system, the guide wheel and the anti-ropes pulley are also crucial to operational stability. These wheels not only have the function of changing the direction of the wire rope or steel belt, but also ensure the smoothness of the suspension system through high-precision manufacturing processes and installation and debugging. The wheel grooves of the guide wheel and the anti-ropes pulley are specially designed to perfectly fit the suspension components, reducing friction loss while avoiding car shaking caused by slipping or offset. The wheel axle is made of high-strength alloy steel and equipped with high-precision bearings to ensure that it can still maintain extremely low rotational resistance and radial runout under heavy load conditions, providing reliable support for the smooth lifting and lowering of the car.
In the load-bearing structure system of the car elevator, each component is a key link to ensure stable operation. The suspension system, shock absorber, car frame structure and auxiliary components are precisely matched to eliminate the adverse factors such as impact force and vibration generated during the operation of the vehicle one by one, forming an organic and unified stable system.