As a commonly used handling tool in factories, logistics centres and other places, rail transfer trolleys bring great convenience to production and life with their simple structure, convenient operation and high efficiency. In modern industrial scenarios, with the complexity of spatial layout, there is a growing demand for electric industrial transfer carts that can run on curved paths. Its circular guideway cornering principle is the key to achieving smooth steering on curved paths, and this paper will elaborate in detail on the aspects of structure, principle, and advantages.
Rail transfer trolley is mainly composed of transfer cart body, wheel set, motor, controller, limiter and other components.
Electric transfer trolley body is a bearing part, responsible for loading goods.
Wheel and track contact, drive rail flat car driving.
Motor and controller are the core of power and control, regulating the speed and direction of rail transfer trolley.
Limiters play a role in restricting the travelling range of electric transfer trolley.
These components work together to form the basic operation system of transfer trolley in rail.
The ring guideway, as the key to the curved steering of electric rail cart, consists of two parts: the inner track and the outer track. The inner rail is in contact with the wheelset of rail flat car and guides the wheelset to travel according to the predetermined trajectory; the outer rail is in contact with the limiters and restricts the travelling range of electric rail cart to ensure that it does not exceed the predetermined area.
When electric platform trolley travels to the bend, the motor controller receives the turning signal, and by adjusting the speed and steering of the motor, rail transfer trolley enters the bend smoothly. At this time, the inner track provides enough friction to ensure that rail transfer trolley maintains a stable travelling speed at the bend; the outer track plays a restricting role to keep rail transfer trolley on a stable travelling trajectory and avoid deviation from the track due to centrifugal force and other factors.
During the cornering process, the wheelset will be subject to the lateral force caused by the centrifugal force generated by the corner. In order to reduce the influence of lateral force on the stability of rail flat car, the wheelset is designed as a drum-shaped wheel, which enables rail transfer trolley to adjust its direction automatically during the travelling process.
At the same time, the motor and controller adopt advanced control algorithms to monitor the travelling status of rail transfer cart in real time and adjust the motor speed and steering according to the actual situation to ensure the stable operation of rail transfer cart on the curved road.
Based on the synergy of inner and outer tracks and the efficient adjustment of motor controller, rail transfer cars achieve smooth steering at bends, ensuring the safety and stability of operation. This feature enables transfer trolley on rail to plan transport routes more flexibly in factories and logistics centres with complex spatial layouts, improving space utilisation and transport efficiency, and reducing delays in transporting goods and equipment loss caused by steering difficulties.
