Integrated Hydraulic Rotary Actuator Internal Wiring
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Solution Overview
Problem
Hydraulic rotary actuators in existing technologies have a complicated configuration due to separate components like sensors, valves, and controllers, leading to issues like bolt loosening, signal line interference, and short circuits, making design and maintenance challenging.
Innovation Solution
An integrated hydraulic rotary actuator design where a stator, rotor, valve, sensor, and controller are integrated, with wires and sensors housed internally to prevent external exposure and interference, allowing for easier connection and reduced complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If components (sensor, valve, controller) are separated and connected via external signal lines, then each component can be independently designed and manufactured, but the signal lines are exposed to external interference causing bolt loosening, interference, and short circuits
Solution Approach 1:
The patent integrates the sensor, valve, and controller into a single integrated actuator assembly. The signal lines are routed internally through the actuator body, merging previously separate components into one unified structure. This eliminates external signal line exposure while maintaining manufacturing feasibility through modular integration.
2Reliability
If components are integrated into a single actuator, then signal lines are protected from external interference and bolt loosening is prevented, but the internal structure becomes more complex
Solution Approach 1:
The integrated actuator employs a nested structure where the sensor, valve, and controller are housed within the actuator body. Signal lines are routed through internal channels within the actuator housing, creating a nested arrangement that protects components while managing internal complexity through organized spatial arrangement.
3Ease of operation
If signal lines are routed externally for easy connection, then installation is simpler, but the lines are exposed to vibration and interference causing short circuits
Solution Approach 1:
By integrating the signal lines within the actuator housing rather than routing them externally, the patent eliminates their exposure to harmful external factors like vibration and interference. The internal routing maintains connection integrity while protecting against environmental hazards.
4Adaptability or versatility
If multiple separate components are used, then design flexibility is maintained, but the overall system size increases and maintenance becomes difficult
Solution Approach 1:
The patent combines multiple functional components (actuator, sensor, valve, controller) into a single integrated assembly, reducing system configuration complexity while maintaining design flexibility. The integrated structure simplifies maintenance by providing a unified unit while preserving the functional adaptability of individual components through modular design.
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 integration of components within the actuator reduces the risk of damage from external interference, simplifies maintenance, and facilitates easier design and manufacturing by eliminating external signal line issues, enhancing operational reliability and ease of use.
Implementation Method 1
a rotor that is inserted in the stator and defines a plurality of cavities for receiving hydraulic oil
Implementation Method 2
a valve that is disposed at a side of the stator and rotates the rotor by changing the direction of the hydraulic oil supplied to the cavities
Data Source
AI summary
In the integrated hydraulic rotary actuator according to the present invention, a valve, a sensor, a controller, and a driving unit for controlling the rotary actuator are integrated, so wires connecting them are not exposed to the outside. Accordingly, it is possible to prevent damage due to interference in operation and maintenance is easy. Further, since it is integrated, including a controller, when the actuator according to the present invention is used, connecting with other parts is easy and interference can be reduced. Therefore, it is easy to design and manufacture a resultant product.