Walking Aerial Work Platform With Leveling and Load Sensing
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Solution Overview
Problem
Existing walking type aerial work platforms face challenges in navigating around obstacles, maintaining a horizontal work platform state, and precise load monitoring, which compromises operator safety.
Innovation Solution
A walking type aerial work platform design featuring a retractable large supporting arm, up-and-down amplitude changing mechanism, and leveling mechanism, along with a connecting structure that includes magnetic blocks and springs for enhanced stability and load monitoring, allows for flexible obstacle navigation and precise load measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the work platform is directly hinged with connecting arms, then the structure is simple, but the weighing precision is insufficient
Solution Approach 1:
A sensor platform is introduced as an intermediary component between the work platform and the connecting arms. The sensor platform carries weighing sensors that indirectly measure the work platform weight, avoiding direct hinging while enabling precise measurement. This mediator structure resolves the contradiction by decoupling the mechanical connection from the measurement function.
2Adaptability or versatility
If the aerial work platform operates with fixed arm positions, then the structure is stable, but it cannot navigate around obstacles
Solution Approach 1:
The large supporting arm is made retractable rather than fixed, allowing it to extend and retract dynamically. This enables the platform to navigate around obstacles by adjusting arm position while the leveling mechanism maintains platform stability during operation. The dynamic structure resolves the contradiction between adaptability and stability.
3Measurement precision
If the work platform is directly connected to connecting arms, then the connection is simple, but the load monitoring is inaccurate
Solution Approach 1:
The sensor platform serves as a mediator that separates the mechanical load-bearing function from the measurement function. Weighing sensors are mounted on this intermediary platform to measure load without requiring direct instrumented connection to the work platform, achieving accurate monitoring while managing structural complexity.
Solution Approach 2:
Traditional direct mechanical connection with embedded sensors is replaced by an intermediary platform with separate weighing sensors. This substitution allows for more precise and reliable load measurement while simplifying the overall connection structure between the work platform and supporting arms.
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
Enables safe and stable operation by maintaining a horizontal work platform state and precise load monitoring, even in the presence of obstacles, thereby ensuring operator safety and stability.
Implementation Method 1
an amplitude changing mechanism is arranged between the large supporting arm and the mast type lifting device; the amplitude changing mechanism includes two first fixed plates fixed on front and rear sides close to a lower end of the large supporting arm; one end of a first oil cylinder is hinged between the two first fixed plates; and the other end of the first oil cylinder is hinged to the mast type lifting device
Implementation Method 2
the leveling mechanism includes a second oil cylinder and a third oil cylinder; one end of the second oil cylinder is hinged to the mast type lifting device, and the other end of the second oil cylinder is hinged to two second fixed plates; the two second fixed plates are respectively fixed on front and rear sides of the large supporting arm
Implementation Method 3
one end of the third oil cylinder is hinged to an upper end of the connecting structure; and the other end of the third oil cylinder is hinged to a bottom end of the large supporting arm
Implementation Method 4
a weighing sensor is arranged at one of the end portions of the first connecting shaft
Data Source
AI summary
The present disclosure relates to the field of aerial work, and in particular, to a walking type aerial work platform, including a walking base, wherein the walking base is provided with a turntable; a mast type lifting device is fixed on the turntable; the mast type lifting device is hinged with one end of a retractable large supporting arm; the other end of the large supporting arm is connected with a work platform through a connecting structure; an up-and-down amplitude changing mechanism is arranged between the large supporting arm and the mast type lifting device; and a leveling mechanism is arranged among the mast type lifting device, the large supporting arm, and the connecting structure. The walking type aerial work platform can transport a work platform to an operation point even if there is an obstacle, and can always maintain the work platform in a horizontal state.