Rotatable Sub-frame for Simultaneous Lifting and Digging Operations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Multifunctional tractors lack the ability to perform various agricultural and digging/loading operations simultaneously due to the need to uncouple the operating arm from the three-point lifting device, which limits their practicality and efficiency.
Innovation Solution
A mobile apparatus with a rotatable sub-frame mounted on a main frame, equipped with an automatically movable three-point lifting device and an articulated operating arm, allowing for simultaneous use of the lifting device and operating arm for different operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the operating arm is mounted on the main frame along with the three-point lifting device, then the structure is simpler, but the operating arm must be uncoupled before an attachment can be used on the lifting device
Solution Approach 1:
The mobile apparatus is divided into two functional modules: the main frame with the three-point lifting device for agricultural attachments, and a rotatable sub-frame with the operating arm for digging/loading operations. This segmentation allows both systems to operate independently without interfering with each other, resolving the conflict between structural simplicity and operational flexibility.
Solution Approach 2:
A rotatable sub-frame is introduced as an intermediary structure between the main frame and the operating arm. This sub-frame allows the operating arm to be mounted separately from the main frame's lifting device, enabling both systems to function simultaneously without requiring uncoupling, thus maintaining both structural simplicity and operational flexibility.
2Device complexity
If the operating arm is mounted on the main frame, then the mounting structure is simpler, but the ability to perform multiple tasks simultaneously is reduced
Solution Approach 1:
The apparatus segments the mounting structure into a main frame for agricultural operations and a separate rotatable sub-frame for digging/loading operations. This segmentation enables simultaneous independent operation of both systems, achieving multitasking capability while keeping each mounting structure relatively simple.
Solution Approach 2:
The operating arm is mounted on a sub-frame that can rotate around a vertical axis, adding a rotational dimension to the mounting structure. This dimensional change allows the operating arm to access different work areas independently of the main frame's lifting device, enabling simultaneous multitasking without complicating the basic mounting concepts.
3Adaptability or versatility
If a rotatable sub-frame is introduced to mount the operating arm separately, then simultaneous operations are enabled, but the device complexity increases
Solution Approach 1:
The rotatable sub-frame serves multiple functions: it mounts the operating arm, provides rotational movement capability, and acts as a separate platform independent of the main frame's lifting device. This multi-functionality justifies the added complexity by enabling simultaneous agricultural and digging/loading operations that would otherwise require separate machines.
Data Source
AI summary
Mobile apparatus, comprising a main frame (202) displaceable on displacing means; a sub-frame (203) which is rotatable around a vertical axis and which is mounted on the main frame and provided with a control unit; at least one operating arm (210) mounted on the sub-frame and an automatically movable lifting device provided on the main frame, which lifting device is adapted to be connectable to an agricultural attachment.