Balancing weight analysis. The lifting and lowering platform of the goods elevator utilizes balancing weights to maintain balance, which are mounted on a balancing beam connected to the support rod of the platform. It drives the support rod to perform an approximately vertical motion. To balance the lifting platform, it is essential to ensure that the platform is perfectly balanced with the lifting platform's surface and the steel billets on it when it swings to the middle position. The elevator is in an over-balanced state when below the middle position and an under-balanced state when above the middle position. This balancing method is beneficial for the motor's operation; when in an over-balanced state, the excess torque of the lifting mechanism assists the motor in starting, while in an under-balanced state, the gravitational torque generated by the platform and the billets helps the motor to brake.
Crank and Connecting Rod Mechanism. The crank and connecting rod mechanism consists of the crankshaft, connecting rod, driving side lever arm, driven side lever arm, and pull rod. The electric motor transmits torque to the crankshaft via a reduction gear, the connecting rod is connected to the crank via a forked bearing, ultimately driving the lever arm motion. Ground Power Unit 2, 36V Aircraft Power Supply 1, 400HZ Variable Frequency Power Supply 7, 115/200V Power Supply.
The hydraulic lifting platform operates frequently under high impact loads, causing the bolts connecting various parts of the lifting mechanism to easily loosen and break. These screws often endure alternating loads. They are prone to fatigue failure under tensile and compressive forces. Therefore, it is essential to regularly tighten and replace these screws, particularly the bolts on the connecting rod fork head bearing seat.
