Strain Wave Gearing Regulating Ring Mounting
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Solution Overview
Problem
The existing rotary actuators with strain wave gearing reduction drives face complexity in assembly and disassembly due to the need for press-fitting and securing a regulating member to a stationary-side rigid internally toothed gear, which complicates operations and limits adaptability to various motors.
Innovation Solution
A rotary actuator configuration that includes a strain wave gearing reduction drive unit with a regulating ring mounted between the motor and the strain wave gearing reduction drive unit, eliminating the need for press-fitting and allowing easy attachment to different motors through a circular recess and protrusion system, simplifying assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a regulating member is press-fitted and secured to a stationary-side rigid internally toothed gear, then axial-direction movement of the flexible externally toothed gear is regulated, but the number of assembly steps increases and disassembly becomes complicated
Solution Approach 1:
The regulating member is extracted from the stationary-side rigid internally toothed gear and repositioned to the drive-side rigid internally toothed gear, which is already integrated with the wave generator. This eliminates the need for separate press-fitting operations while maintaining the axial movement regulation function.
Solution Approach 2:
The regulating member is merged with the drive-side rigid internally toothed gear, forming an integrated assembly. This combination allows the regulating member to be installed simultaneously with the gear during normal assembly operations, reducing the total number of steps.
2Reliability
If a regulating member is press-fitted and secured to a stationary-side rigid internally toothed gear, then axial-direction movement is controlled, but the operation for assembling the strain wave gearing reduction drive unit becomes complicated
Solution Approach 1:
The regulating member is extracted from the stationary-side rigid internally toothed gear and repositioned to the drive-side rigid internally toothed gear, which is already integrated with the wave generator. This eliminates the need for separate press-fitting operations while maintaining the axial movement regulation function.
Solution Approach 2:
The regulating member is pre-installed on the drive-side rigid internally toothed gear along with the wave generator before final assembly. This preliminary action allows the regulating member to be in place before the strain wave gearing reduction drive unit is completed, simplifying the overall assembly process.
3Adaptability or versatility
If the strain wave gearing reduction drive unit is designed with a circular recess for motor attachment, then adaptability to various motors is improved, but the structure becomes more complex
Solution Approach 1:
The circular recess with adjustable positioning members provides a universal attachment interface that can accommodate different motor shaft sizes and configurations. The positioning members can be adjusted to match various motor specifications, making the strain wave gearing reduction drive unit compatible with multiple motor types without requiring different designs.
Solution Approach 2:
The attachment interface incorporates adjustable positioning members that can be moved to different positions along the circular recess. This dynamic adjustment capability allows the same structural design to adapt to various motor specifications, maintaining universality while avoiding the need for multiple fixed designs.
Data Source
AI summary
A reduction drive-side mounting end face on a strain wave gearing reduction drive unit has a circular center hole, and a motor-side mounting end face on a motor has a circular projection. The strain wave gearing reduction drive unit and motor are coaxially mounted by the circular projection being fit into the circular center hole with a regulating ring therebetween. The regulating ring, which regulates the motion of a flexible external gear, can be easily mounted to the strain wave gearing reduction drive unit by using the motor. The strain wave gearing reduction drive unit can be mounted to a motor comprising a circular projection with a different outer diameter by using a regulating ring with a different inner diameter.