Collector (collector trolley): Installed on mobile equipment, its collector brush maintains sliding contact with the trolley wire, thereby achieving power transmission.
Collector (collector trolley) is a device installed on mobile equipment to collect power from the trolley wire. To better understand this concept, we can explore its structure, working principle, and some key features in detail.
Structure and Working Principle of Collector (Collector Trolley)
Structure
- Collector trolley main body: Usually a sturdy frame structure used to carry the collector brush and other necessary components.
- Collector brush: The part that directly contacts the trolley wire, usually made of materials with high conductivity and good wear resistance, such as graphite or copper alloy.
- Spring loading mechanism: Ensures good contact pressure between the collector brush and the trolley wire, maintaining stable power transmission even during equipment movement.
- Cable connector: Used to transmit the power collected from the trolley wire to the motor or other electrical components of the mobile equipment.
- Insulating material: Covers the non-conductive parts of the collector trolley to ensure operational safety.
Working Principle
When mobile equipment (such as a crane or a transport vehicle in an automated warehouse system) moves along a preset track, the collector trolley moves with it. The collector brush is pressed against the trolley wire by the spring loading mechanism and slides along the trolley wire as the mobile equipment moves. The trolley wire consists of multiple parallel metal rails, each representing a phase or neutral line. Thus, through the contact between the collector brush and the trolley wire, continuous power transmission is achieved, supplying power to the mobile equipment.
Key Features
- Reliability: Provides stable power even in high-speed movement or complex environments.
- Flexibility: Adapts to different travel paths and movement speeds.
- Safety: Uses insulating materials and techniques to reduce the risk of electric shock.
- Easy maintenance: The collector brush is easy to replace after wear, and other components are also easy to maintain.
Application Scenarios
- Industrial cranes: Used for heavy material handling.
- Automated warehouse systems: Automatically transporting goods in logistics centers.
- Port handling equipment: Such as quay cranes, gantry cranes, etc.
- Public transportation systems: Such as trams, light rail vehicles, etc.
Technical Specifications
- Voltage level: Can be low voltage (e.g., 380V) or high voltage depending on application requirements.
- Current capacity: Depends on the requirements of the driven equipment, ranging from tens of amperes to thousands of amperes.
- Environmental adaptability: Considerations for dustproof, waterproof, corrosion resistance, etc.
Hope this information is helpful! If you have more specific questions or need more details, please feel free to ask.


