Agricultural Chassis Brake Circuit for Shared Hydraulic Load Transfer
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Solution Overview
Problem
Agricultural implements face limitations in public road traffic due to size and weight restrictions and high costs, with chassis designs suitable only for load transmission during operation and not during transport, and require multiple pressure sources for spring and actuating devices.
Innovation Solution
Integrating spring and actuating devices with the brake circuit using a shared fluid pressure source, allowing them to operate together, eliminating the need for additional pressure sources and enabling load transfer in both working and transport positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate pressure sources are used for spring/actuating devices and brake circuits, then each system can be independently optimized, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the pressure supply systems by connecting the spring/actuating devices to the existing brake circuit's pressure source. The brake circuit's pressure generator serves dual purposes: providing pressure for braking and for actuating the spring devices that adjust chassis load. This integration reduces the number of separate pressure sources while maintaining system reliability through shared infrastructure.
Solution Approach 2:
The brake circuit's pressure source is designed to serve multiple functions: it provides hydraulic pressure for brake operation and simultaneously supplies pressure to the spring/actuating devices for chassis load adjustment. This multi-functional design eliminates redundant components and simplifies the overall system architecture while maintaining independent controllability of each function.
2Ease of manufacture
If chassis is designed only for load transmission during operation, then structural design is simplified, but chassis cannot be used for load transfer during transport
Solution Approach 1:
The chassis design incorporates dynamic adjustability through spring-loaded elements that can modify the chassis's load-bearing characteristics. The spring devices allow the chassis structure to adapt its stiffness and load distribution properties based on whether the implement is in working position or transport position, enabling the same structure to optimize performance for both operational modes without requiring completely different designs.
Solution Approach 2:
The system changes the mechanical parameters of the chassis by using spring-loaded adjusters that modify contact forces and load distribution. When transitioning from working to transport position, the spring devices adjust the chassis's effective stiffness and load-bearing capacity, allowing the chassis to function as a load-bearing structure during transport while maintaining its optimized design for field operation.
3Adaptability or versatility
If additional pressure sources are added for spring/actuating devices, then system functionality is enhanced, but manufacturing cost and operational complexity increase
Solution Approach 1:
The patent combines the pressure supply for spring/actuating devices with the existing brake circuit's pressure source. Instead of adding a separate pressure generator, the system utilizes the brake circuit's hydraulic pressure to actuate the spring devices, thereby enhancing functionality without increasing the number of independent pressure sources or complicating the operational control structure.
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 cost-effective manufacturing with high maximum loads and efficient load transfer during both operation and transport, optimizing chassis usage and reducing operational complexity.
Implementation Method 1
at least one brake circuit (40) which can be pressurized with fluidic pressure, in particular a fluid
Implementation Method 2
the one or more spring and/or actuating devices (30) can be coupled to the at least one brake circuit (40) in a fluid-conducting manner
Data Source
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AI summary
Agricultural implement (1) comprising at least one chassis (20) by means of which the implement (1) can be moved and/or supported in different operating positions and in a rollable manner on a surface such as a road and an agricultural area, in particular a field, wherein at least one brake circuit (40) which can be pressurized with fluidic pressure, in particular a fluid, is assigned to the chassis (20), by means of which at least one of several wheel and/or roller elements (21-24) assigned to the chassis (20) can be braked, and wherein one or more spring and/or adjusting devices (30) are assigned to the chassis (20), by means of which a load (A), in particular a ground force, which can be transmitted to the ground via the chassis (20), in particular via at least one wheel and/or roller element (21-24), can be adjusted and/or adapted.In order to specify an agricultural implement (1) which can be manufactured cost-effectively and with minimal material usage and is suitable for high maximum loads, it is provided that the one or more spring and/or actuating devices (30) can be coupled to the at least one brake circuit (40) in a fluid-conducting manner.