How to choose the motor power of tunnel lining trolley
Choosing the appropriate motor power for a tunnel lining trolley is crucial for efficient and safe operation. It involves considering various factors related to the trolley’s function, the tunnel’s characteristics, and the concrete lining process.
Tunnel Lining Trolley Motor Power Selection
1. Functions of the Tunnel Lining Trolley and Associated Loads:
A tunnel lining trolley typically performs several tasks, each requiring specific power:
Traveling/Movement: This is the primary function. The motor needs to overcome:
Rolling resistance: Friction between the wheels and the tracks.
Grade resistance: If the tunnel has an incline (crawling ability).
Acceleration torque: The force needed to start and increase the speed of the trolley.
Total weight of the trolley: This includes the steel formwork, hydraulic system, concrete if present during movement (though usually it’s poured after positioning), and any auxiliary equipment or personnel.
Short-distance movement: For precise positioning, motors need to provide accurate control.
Hydraulic System Operation: Most modern lining trolleys use hydraulic cylinders for various operations:
Lifting and lowering the formwork: This involves overcoming the weight of the formwork and the concrete pressure during pouring.
Opening and closing side templates: For demolding and adjustment.
Horizontal and vertical adjustments: For precise alignment.
Vibrating concrete: Some trolleys have attached vibrators to ensure proper concrete compaction. The hydraulic pump motor needs sufficient power to drive these cylinders and vibrators.
Auxiliary Functions:
Lighting: For visibility within the tunnel.
Control systems: Power for the electrical and electronic components.
2. Key Factors Influencing Motor Power Selection:
Trolley Specifications:
Length and weight of the trolley: Longer and heavier trolleys require more power for movement and lifting.
Maximum lining length per unit: This indicates the scale of the operation.
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More detailed information about how to choose the power of tunnel lining trolley motor can be clicked to visit: https://www.gf-bridge-tunnel.com/a/blog/tunnel-lining-trolley-motor-power-selection.html
