Electric Motor Inside Roller for Round Baler Drive
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Solution Overview
Problem
Traditional round balers face complexity, maintenance needs, and fixed rotation speed issues due to mechanical drives, while electric motors powering auxiliary components do not drive the baling means effectively, especially in round balers.
Innovation Solution
Integration of electric motors directly connected to rollers within the baling chamber, eliminating intermediate transmission and allowing for variable speed and direction control via an electronic control unit, enabling efficient and flexible operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If mechanical drive trains are used to drive the baling means, then the system can be powered by the tractor's PTO, but the device complexity and maintenance needs increase
Solution Approach 1:
The patent replaces the mechanical drive train (PTO, universal joint shaft, transmission) with an electric motor system. The electric motor is mounted directly on the roller, eliminating the need for complex mechanical transmission components while providing the necessary power to drive the baling means.
Solution Approach 2:
The invention extracts the drive mechanism from the tractor's mechanical power transmission system and relocates it to an independent electric motor mounted on each roller. This separation removes the mechanical drive train complexity while maintaining the power source function.
2Power
If mechanical drive trains are used, then power can be transmitted from the tractor, but regular service and maintenance are required
Solution Approach 1:
The mechanical drive train requiring greasing and regular service is replaced with an electric motor system that eliminates mechanical wear components. The electric motor has no moving parts that require lubrication, significantly reducing maintenance needs while maintaining power transmission capability.
3Power
If mechanical drives are used, then the baling means can be powered, but the rotation speed and direction are fixed
Solution Approach 1:
The invention replaces fixed-speed mechanical drives with electric motors that can dynamically adjust their rotation speed and direction. The electric motor control system allows variable speed operation to adapt to different crop conditions and baling requirements, while also enabling reversible rotation direction for different operational phases.
4Device complexity
If electric motors are mounted inside the roller, then the drive arrangement becomes compact and complex transmission is eliminated, but the motor must be directly connected to the roller
Solution Approach 1:
The patent merges the electric motor and roller into a single integrated assembly. The motor is mounted directly on the roller housing, combining two separate components into one unified unit. This integration eliminates the need for separate transmission mechanisms while requiring direct mechanical connection between the motor output and roller.
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
This solution simplifies the drive system, reduces maintenance, and allows for adaptive speed and direction control based on crop conditions, enhancing operational efficiency and safety by eliminating the need for mechanical connections and enabling smooth bale handling.
Implementation Method 1
The driven rollers are driven by an electric motor that is disposed inside the respective driven roller
Data Source
Figure 1
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Figure 4
AI summary
A round baler (12) comprises a frame (24) and a baling chamber (26) radially surrounded by baling means with one or more driven rollers (28, 30). An electric motor (52) for driving the roller (28, 30) is disposed in the interior of the roller (28, 30).