Battery Swapping Robot Telescopic Arm for Precise Angle Alignment
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Solution Overview
Problem
Existing battery swapping technologies for heavy-duty trucks face inefficiencies due to inaccurate parking and angular adjustments, leading to prolonged alignment times and potential safety hazards from flexible connections and wear on rotating shafts.
Innovation Solution
A battery swapping robot with a lifting device and telescopic device that includes a rotatably connected mounting arm and sliding lifting arm, equipped with a hinge and driving mechanisms to adjust the angle precisely, reducing the need for rotating mechanisms and improving stability and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotating shaft is used as the load-bearing point for the boom, then the boom can rotate to adjust the angle, but the rotating shaft and shaft sleeve experience progressive wear leading to reduced angle adjustment accuracy over time
Solution Approach 1:
The patent extracts the rotating shaft from the load-bearing path. Instead of having the rotating shaft bear the load of the battery pack, the boom is designed to bear the load while a separate non-load-bearing rotating mechanism enables angle adjustment. This separation eliminates wear on the rotating shaft from load forces, maintaining adjustment accuracy over time.
Solution Approach 2:
The patent segments the functions of load-bearing and angle adjustment into separate mechanical pathways. The boom structure handles load-bearing independently from the rotating mechanism that handles angle adjustment, allowing each component to be optimized for its specific function without compromising the other.
2Adaptability or versatility
If flexible connections (chains or wire ropes) are used to accommodate parking angle errors, then the system can tolerate position variations, but the battery pack may shake during lifting or alignment becomes difficult
Solution Approach 1:
The patent employs a dynamic telescopic arm mechanism that can extend and retract to accommodate parking position variations. This dynamic adjustment allows the system to adapt to different parking positions while maintaining stable, rigid connections during the actual lifting and swapping operations, eliminating the shaking issues associated with flexible connections.
Solution Approach 2:
The patent changes the parameter of connection rigidity from flexible (chains/ropes) to rigid (telescopic arm structure). The telescopic arm provides rigid support during lifting while its ability to extend/retract provides the necessary adaptability for position tolerance, combining the benefits of both flexibility and rigidity in different operational phases.
3Measurement precision
If repeated repositioning or angular adjustments are performed to align the battery gripper with the battery pack, then alignment accuracy can be achieved, but a considerable amount of time is required reducing swapping efficiency
Solution Approach 1:
The patent implements preliminary alignment through the telescopic device's ability to pre-adjust its position and angle before the actual swapping operation. The system performs initial positioning and coarse alignment in advance, then executes the final precise alignment quickly, reducing the total time required for the swapping process.
Solution Approach 2:
The patent replaces manual repositioning and iterative angular adjustments with an automated telescopic device that can rapidly adjust position and angle through motorized extension and rotation. This mechanical substitution eliminates the time-consuming manual alignment process while maintaining high precision.
Data Source
AI summary
A battery swapping robot, including a lifting device (5) and a telescopic device (1) mounted on the lifting device (5). The lifting device (5) includes a bottom frame (51) and a top frame (52) which are arranged in parallel to each other. The telescopic device (1) includes a mounting arm (11) rotatably connected below the top frame (52) and a lifting arm (13) slidably connected to the mounting arm (11), with the lifting arm (13) provided with a battery gripper (14). An adjustable angle of the telescopic device of the battery swapping robot enables more accurate and efficient battery swapping.