Agricultural Baler Flywheel Brake System Design
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Solution Overview
Problem
Large and heavy flywheels in agricultural balers pose safety risks during transportation and maintenance due to potential movement from weight, acceleration, or vibrations, as traditional belt-based locking mechanisms are insufficient for ensuring a fixed position, especially with heavy flywheels like 700 kg.
Innovation Solution
Integration of a disc brake system or drum brake system directly mounted on the flywheel, allowing for secure and controlled braking and positioning, reducing the risk of accidental movement and enhancing safety during transport, maintenance, and emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a belt-based locking mechanism is used to hold the flywheel in a fixed position, then the structure is simple and easy to implement, but the reliability is insufficient for heavy flywheels (e.g., 700 kg) as they may move due to weight, acceleration, or vibrations
Solution Approach 1:
The patent replaces the traditional belt-based mechanical locking system with a disc brake system that uses friction between brake pads and a brake disc to hold the flywheel in position. This substitution provides more reliable and controllable braking force capable of securing heavy flywheels (e.g., 700 kg) against movement due to weight, acceleration, or vibrations during transport and maintenance.
Solution Approach 2:
The brake system incorporates hydraulic or pneumatic actuation mechanisms to apply and release the brake pads against the brake disc. This allows for controlled and adjustable braking force, enabling the system to reliably hold heavy flywheels while providing ease of operation through fluid-powered actuation rather than purely mechanical linkage.
2Power
If a heavy flywheel (e.g., 700 kg) is used to overcome peak loads in the gearbox, then the power delivery is improved, but the safety risk increases due to potential movement during transport and maintenance
Solution Approach 1:
The brake system is designed to apply preliminary counter-action to the heavy flywheel's tendency to move. By positioning the brake disc and having brake pads ready to engage, the system prevents movement before it occurs during transport or maintenance operations, countering the gravitational and inertial forces acting on the 700 kg flywheel.
Solution Approach 2:
The patent converts the potential harm of the heavy flywheel's weight and inertia into a benefit by using the same mass as a heat sink for the brake system. The large flywheel mass absorbs braking heat effectively, and the brake system's stopping power is enhanced by the flywheel's own inertia, turning the safety risk into a functional advantage.
3Speed
If the flywheel is allowed to rotate freely during operation, then the baler can respond quickly to peak loads, but the risk of accidental movement during transport and maintenance increases
Solution Approach 1:
The brake system is designed with dynamic characteristics that allow it to be easily overridden during normal operation when quick response to peak loads is needed, yet provides automatic or easily engaged locking during transport and maintenance. The hydraulic/pneumatic system can be quickly released during operation for free rotation but engages reliably when pressure is applied during transport conditions.
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 disc or drum brake system effectively holds the flywheel in a fixed position, allows for active slowing down, and provides enhanced safety by reducing the risk of accidental movement, enabling faster and safer operation, and reducing wear and stress on components.
Implementation Method 1
a brake system comprising a disc brake system adapted for braking the flywheel, the disc brake system being a caliper-type disc brake system, comprising a brake disc and a brake caliper
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An agricultural baler (70) comprises a shaft (3), and a flywheel (2) connected to the shaft (3), and a brake system (40) for holding or for stopping the flywheel (2). The brake system (40) may be of the drum-type and/or of the caliper-type. The caliper-type comprises a brake disc (41) and a brake caliper (51). The brake disc (41) may be mounted on the flywheel (2), or on the shaft (3). The brake system (40) may have an adjustable braking force. The disc brake (40) may be manually or hydraulically activated. The brake system (40) may be remotely activated from a tractor (17).