Actuating Device with Eccentric Output Shaft for Variable Transmission Ratios
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Solution Overview
Problem
The logistical effort and costs associated with producing actuating devices for mechanically actuating components, such as throttle valves and exhaust flaps, are high due to the need for various transmission ratios, which require significant manufacturing variations.
Innovation Solution
The actuating device is designed with a housing divided into two parts, allowing the output shaft to be positioned eccentrically, enabling different gear configurations for various transmission ratios using common parts, with additional gearwheels integrated or non-integrated based on rotation positions to achieve different transmission ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different actuating devices with different transmission ratios are produced for different applications, then the adaptability to various components is improved, but the manufacturing costs and logistical effort increase
Solution Approach 1:
The housing is designed as a universal component that can accommodate multiple gear configurations with different transmission ratios. The housing contains mounting positions and structural features that allow different gearwheels to be installed in the same housing, enabling a single housing design to serve multiple transmission ratio requirements without requiring separate housing variants for each application.
Solution Approach 2:
The gear system is segmented into modular components including the housing, input shaft, output shaft, and interchangeable gearwheels. This segmentation allows the gearwheels to be independently selected and installed based on the required transmission ratio, while the housing and shafts remain as common components across different variants, reducing manufacturing complexity.
2Adaptability or versatility
If multiple gear configurations with different transmission ratios are created, then the versatility for different applications is improved, but the device complexity increases
Solution Approach 1:
The gear configuration is made dynamically adaptable through the ability to install different gearwheels in the same housing. The housing is designed with flexible mounting arrangements that allow the gear system to be reconfigured for different transmission ratios by simply changing the gearwheel, rather than requiring complex permanent configurations for each ratio.
Solution Approach 2:
Instead of creating entirely different gear systems for each transmission ratio, the invention uses a copied housing design that can accommodate multiple gear configurations. The housing structure, mounting features, and overall architecture are copied and reused across different variants, with only the gearwheel being changed to achieve different transmission ratios.
Data Source
AI summary
An actuating device for mechanically actuating a component may include a housing having first and second housing parts lying against one another in a separation plane and fastened to one another, and an electric motor arranged in the first housing part and having an input shaft. The device may also include an output shaft rotatably mounted at least on the second housing part and penetrating a wall thereof, the output shaft one of (i) being connected externally on the second housing part with an actuating element for mechanical coupling with the component which is to be actuated, or (ii) forming an actuating element for mechanical coupling with the component which is to be actuated. The device may further include a gear connecting the input shaft with the output shaft, and having an output gearwheel rotatably connected with the output shaft. The second housing part, in relation to an axis of rotation running perpendicularly to the separation plane, may be able to be fastened to the first housing part in at least two different rotation positions. The output shaft may be arranged eccentrically to the axis of rotation on the second housing part. At least one of the first and second housing parts may have at least one bearing point for rotary bearing at least one additional gearwheel. In a first rotation position between the housing parts, the gear without the additional gearwheel may connect the input shaft with the output shaft with a first transmission ratio. In a second rotation position different from the first rotation position, between the housing parts, the gear with the additional gearwheel may connect the input and output shafts with a second transmission ratio different from the first transmission ratio.