Rotatable Seat Module Steering Mining Shuttle Cars
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Solution Overview
Problem
Underground mining shuttle cars face challenges in navigating narrow roadways due to insufficient space for turning, requiring them to tram forward in one direction and rearward in the opposite, which complicates material removal and handling.
Innovation Solution
A rotatable seat module with a joystick control system allows the operator to steer the shuttle car intuitively by rotating the seat to face different directions, enabling efficient loading and unloading operations without the need for turning, using a combination of mechanical, hydraulic, or pneumatic systems to rotate the platform and foot-pedal controls for direction and speed management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the shuttle car uses a heavy-duty high-power drive train to haul loads in arduous conditions, then the power and hauling capability are improved, but the device complexity and maneuverability in narrow roadways deteriorate
Solution Approach 1:
The seat module is made rotatable to allow dynamic repositioning of the operator's position. The seat can rotate between facing the loading end and facing the discharge end, enabling the operator to adapt to different operational directions without changing the heavy-duty drive train configuration. This dynamic adjustment improves maneuverability while preserving the power and hauling capability of the heavy-duty drive train.
2Adaptability or versatility
If the shuttle car trams forward in one direction and rearward in the opposite direction due to insufficient turning space, then the ability to navigate narrow roadways is improved, but the ease of operation and material handling efficiency deteriorate
Solution Approach 1:
The rotatable seat module allows the operator to dynamically adjust their facing direction to match the direction of travel. When the shuttle car trams forward, the operator can face forward; when traming rearward, the operator can rotate to face backward. This dynamic positioning makes the reverse traming operation more intuitive and easier to control, improving ease of operation while maintaining adaptability to narrow roadways.
Solution Approach 2:
Instead of requiring the entire vehicle to turn around to change direction, the operator inverts their facing direction by rotating the seat module. This inversion of the operator's orientation rather than the vehicle's orientation simplifies the operation of navigating narrow roadways in both directions, making reverse traming as intuitive as forward traming.
3Adaptability or versatility
If the shuttle car trams rearward to proceed in the opposite direction, then the ability to navigate narrow roadways is improved, but the productivity and operational efficiency deteriorate due to complex reversing operations
Solution Approach 1:
The rotatable seat module enables the operator to dynamically reposition themselves to face the direction of travel during reverse traming. This dynamic adjustment makes reversing operations more intuitive and efficient, reducing the time and complexity involved in direction changes. As a result, the shuttle car can navigate narrow roadways in both directions more efficiently, improving productivity while maintaining adaptability to constrained environments.
Data Source
AI summary
A mining shuttle car that trams on underground roadways includes a conveyor system and an operator's compartment adjacent to the conveyor system. The operator's compartment includes a rotatable seat and a control station. The operator's seat module is coupled to one or more joysticks that control the car, and the operator's seat module and the control station are mounted on a rotatable platform so as to be rotatable as a unit between a plurality of secured positions for operating the mining shuttle car. Forward movement of the joystick control relative to the seat steers the shuttle car about a point in front of the seat, and rearward movement of the joystick control relative to the seat steers the shuttle car about a point behind the seat. Forward and rearward movement of one of the joysticks steers the mining shuttle car in the same manner regardless of the rotational position of the rotational position of the seat.