Actuation Device with Helical Transmission for Compact Design
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Solution Overview
Problem
Current actuation devices for rotational movements are complex, spatially large, expensive, prone to malfunctioning, and difficult to assemble and maintain due to their design involving gearwheel transmissions, chains, and belts, which are costly and wear out easily.
Innovation Solution
An actuation device with a drive shaft, intermediate body, and driven body, utilizing first and second transmissions to convert rotational movements into linear and back into rotational movements, allowing for compact design, reduced parts, and simplified assembly and maintenance, featuring a helical transmission and optional electrical drive for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gearwheel transmissions, chains and belts are used to transmit rotational movement, then the actuation device can achieve rotational movement from a rotational drive, but the device becomes spatially large, complex and expensive
Solution Approach 1:
The patent extracts and eliminates the complex gearwheel transmissions, chains and belts from the actuation device. Instead, it uses a direct coupling between the drive shaft and the actuator, removing the intermediate transmission components while maintaining the essential function of converting rotational drive movement to rotational actuation movement.
Solution Approach 2:
The patent inverts the conventional approach by not using a reduction gear system to achieve torque multiplication. Instead, it uses a direct drive configuration where the actuator is coupled directly to the drive shaft, and achieves the required mechanical advantage through the actuator's own mechanism rather than through complex transmissions.
2Reliability
If gearwheel transmissions and chains are used, then rotational movement can be transmitted, but the device becomes expensive in manufacture, assembly, maintenance and repair
Solution Approach 1:
The patent removes the expensive gearwheel transmissions, chains and belts from the system. By using a direct coupling between the drive shaft and actuator, it eliminates the need for these costly components, thereby reducing manufacturing, assembly, maintenance and repair costs while maintaining reliable movement transmission.
Solution Approach 2:
The patent employs simpler, more economical components in place of expensive transmissions. The direct drive configuration uses basic coupling elements that are cheaper to manufacture and replace, making the overall system more cost-effective throughout its lifecycle.
3Reliability
If complex transmissions with many individual parts are used, then rotational actuation can be achieved, but the device is difficult to assemble, service and repair
Solution Approach 1:
The patent extracts and removes the complex transmission system with its many individual parts. By implementing a direct drive configuration where the actuator couples directly to the drive shaft, it eliminates intermediate components that would complicate assembly, servicing and repair operations.
Solution Approach 2:
The patent segments the actuation device into distinct functional modules (drive shaft, actuator, coupling elements) that can be independently assembled, serviced and replaced. This modular approach simplifies maintenance while maintaining reliable actuation movement.
4Reliability
If conventional transmission systems are used, then rotational drive movement can be converted to rotational actuation movement, but the device turns out to be spatially large
Solution Approach 1:
The patent removes the bulky gearwheel transmissions, chains and belts that occupy significant space. By using a direct coupling configuration, it achieves the required movement conversion in a compact arrangement, dramatically reducing the spatial footprint of the actuation device.
Solution Approach 2:
The patent reconfigures the arrangement of components to optimize spatial utilization. By eliminating the need for large transmission mechanisms and using a direct drive approach, it achieves efficient movement conversion in a more compact, space-efficient configuration.
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 solution enables a compact, stable, and cost-effective actuation device with reduced wear and improved assembly and maintenance, capable of efficient transmission of rotational movements while minimizing material usage and operational complexity.
Implementation Method 1
The first transmission (11) is designed such that it converts a rotational movement of the drive shaft (2) relative to the reference body (4) into a linear movement component of the intermediate body (3) relative to the reference body (4)
Implementation Method 2
the second transmission (12) is designed such that it converts the linear movement component of the intermediate body (3) relative to the reference body (4) into a rotational movement of the driven body (5) relative to the reference body (4)
Data Source
AI summary
Control equipment for generating a rotational travel motion from a rotational drive motion includes a drive shaft, an intermediate body, a reference body, and an output body that are movable relative to each other. The control equipment includes a first transmission and a second transmission, which is different from the first transmission. The first transmission transforms a rotational movement of the drive shaft relative to the reference body into a linear motion component of the intermediate body relative to the reference body, and the control equipment has a displacement line along which the intermediate body moves via the linear motion component of the intermediate body relative to the reference body. The second transmission transforms the linear motion component of the intermediate body relative into a rotational movement of the output body relative to the reference body.