Spring Reaction Torque Balancing With Clutch-Reducer Assembly
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Solution Overview
Problem
Conventional motors require extensive processing and increased productivity costs due to separate mounting of encoder sensors and brake portions on the shaft, leading to reduced price competitiveness and continuous driving force requirements for torque balance.
Innovation Solution
A spring reaction force variable apparatus with a motor, clutch unit, and reducer, where the spring portion provides reaction torque to achieve torque balance with the motor and external load, allowing the clutch unit to rotate only when torque is input, and maintaining balance when the motor is off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encoder sensor and brake portion are separately mounted on the shaft, then torque balance control is achieved, but device complexity and installation cost increase
Solution Approach 1:
The brake portion and encoder sensor are integrated into a single brake-encoder integrated portion that is mounted as one unit on the output shaft, combining two separate components into one unified structure that performs both braking and encoding functions simultaneously
Solution Approach 2:
The brake-encoder integrated portion serves multiple functions (braking and rotation detection) within a single component structure, making the system more versatile and reducing the number of separate parts needed
2Reliability
If encoder sensor and brake portion are separately mounted on the shaft, then torque balance control is achieved, but productivity decreases and unit price increases
Solution Approach 1:
The brake portion and encoder sensor are integrated into a single brake-encoder integrated portion that is mounted as one unit on the output shaft, combining two separate components into one unified structure that performs both braking and encoding functions simultaneously
Solution Approach 2:
The brake-encoder integrated portion is designed as a separate, pre-assembled module that can be installed as a single unit, segmenting the complex installation process into simpler, more manageable steps
3Reliability
If brake portion and encoder sensor are mounted on the shaft, then torque balance is maintained, but continuous driving force is required
Solution Approach 1:
The brake portion operates intermittently rather than continuously, applying braking force only when needed to maintain torque balance, allowing the motor to enter idle states and reduce energy consumption
Solution Approach 2:
The brake-encoder integrated portion automatically adjusts braking force based on real-time rotation detection, maintaining torque balance through self-regulation without requiring continuous external driving force
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 apparatus reduces installation complexity and costs by achieving torque balance without continuous driving force, enhancing productivity and price competitiveness.
Implementation Method 1
a spring portion (1530) connected to the planetary gear set (1520), and configured to provide reaction torque corresponding to a rotation amount of the ring gear (1523)
Data Source
AI summary
A spring reaction force variable apparatus includes, a motor configured to provide rotation force, a clutch unit coupled to an output shaft of the motor, a reducer disposed at an output end portion of the clutch unit, and a spring portion coupled to the reducer. Here, when the motor is driven, rotation force is applied to the reducer coupled to the output end portion, whereby torques are balanced on the reducer, and when the motor is off, the reaction torque of the spring portion and the torque applied to the reducer are balanced.