Transport Robot Unloading Ramp for Heavy Item Discharge
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Solution Overview
Problem
Conventional transport robots face challenges in automatic unloading, particularly with heavy items, requiring additional manpower and struggling with efficient discharge processes.
Innovation Solution
A transport robot equipped with an unloading module that transitions from a first state, where it is integrated into the robot's body, to a second state, where it forms a slope outside the body, allowing for automatic unloading and placement on the floor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional transport robots use automated transportation, then transportation efficiency is improved, but unloading requires additional manpower and cannot handle heavy items effectively
Solution Approach 1:
The unloading module enables the transport robot to perform unloading operations autonomously without human assistance. The module includes an unloading plate that can be extended outward and a guide roller that moves along a guide rail to automatically guide items off the robot, allowing the system to service itself during the unloading process.
Solution Approach 2:
The unloading module is designed with movable components that can dynamically adjust their position and configuration. The unloading plate can extend and retract, and the guide roller can move along the guide rail, allowing the system to adapt its structure during operation to facilitate automatic unloading of various items including heavy ones.
2Productivity
If the unloading module is always extended outward to facilitate unloading, then unloading speed is improved, but the robot's stability and safety during movement deteriorates
Solution Approach 1:
The unloading module transitions between different states - retracted during robot movement to maintain stability and extended during unloading operations to enable rapid item discharge. This dynamic reconfiguration allows the system to optimize for either stability or unloading speed depending on the operational phase.
Solution Approach 2:
The unloading module is designed as a separable component that can be independently controlled from the main robot body. The unloading plate and guide roller are segmented elements that can be deployed only when needed, allowing the robot to maintain its structural integrity during movement while enabling rapid unloading when stationary.
3Device complexity
If the unloading module structure is simplified, then device complexity is reduced, but the ability to handle heavy items and automatic unloading functionality deteriorates
Solution Approach 1:
The unloading module uses the item's own weight and gravity to facilitate unloading. The guide roller moves along the guide rail under the item's weight, automatically guiding heavy items off the robot without requiring additional actuators or complex mechanisms, thus maintaining simple structure while handling heavy loads effectively.
Solution Approach 2:
The guide rail and guide roller act as intermediary elements between the unloading plate and the floor. This simple intermediary mechanism enables automatic unloading of heavy items by providing a guided path that utilizes gravity, avoiding the need for complex robotic arms or lifting mechanisms.
4Force
If additional unloading mechanisms are added to handle heavy items, then unloading capability is improved, but device complexity and cost increase
Solution Approach 1:
The system uses the weight of the item being unloaded as the driving force. Heavy items naturally slide along the guide rail under gravity, eliminating the need for additional motors, actuators, or lifting mechanisms. The friction pad provides controlled resistance to manage the unloading process without requiring complex force application systems.
Solution Approach 2:
The friction between the friction pad and the item, which could be considered a resistive force, is actually utilized to control the unloading speed and prevent items from sliding too quickly. This converts a potentially harmful effect (friction) into a beneficial control mechanism, maintaining simple structure while safely handling heavy items.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The robot can automatically withdraw the loading bay and unload items efficiently, minimizing the need for additional manpower, reducing discharge time, and preventing delivery delays.
Implementation Method 1
a guide roller that is connected to the unloading plate and moves along the guide rail
Implementation Method 2
a friction pad formed on a top surface of the lower plate, and the friction pad may restrict rotation of the unloading roller by being in contact with a bottom surface of the unloading roller in the first state, and allow the rotation of the unloading roller by being spaced apart from the bottom surface of the unloading roller in the second state
Implementation Method 3
an unloading plate that forms a bottom surface inside the body in the first state and to form a slope on the outside of the body in the second state
Data Source
Figure 1
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AI summary
A transport robot includes a body, a mover disposed under the body and configured to provide a moving function, and an unloading module configured to switch states from a first state of being entirely disposed on the body to a second state of a portion of the unloading module being disposed in a first direction from the body. The unloading module may include an unloading plate configured to form a bottom surface inside the body in the first state and to form a slope on an outside of the body in the second state, a first rail panel located at each of left and right sides of the unloading plate and formed with a guide rail, and a guide roller connected to the unloading plate and configured to move along the guide rail. The transport robot is able to easily unload an item from a loading space.