Incomplete Drive Gear Valve Core Transmission for Bidirectional Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing valve components for fluid on-off control and flow regulation face challenges in achieving efficient remote and automated control, leading to high controller costs and complex control logic, which hinders miniaturization designs.
Innovation Solution
A valve core transmission member comprising a drive gear and a spindle, where the drive gear is an incomplete gear with an effective engagement angle greater than the free rotation angle, allowing for relative rotation and torque transmission between the spindle and the drive gear, facilitating bi-directional rotation and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a drive gear and spindle mechanism is used for valve core transmission, then the valve control functionality is achieved, but the controller cost and complexity increase
Solution Approach 1:
The drive gear is designed with an incomplete gear structure that has a free rotation angle, allowing it to automatically reset its engagement state with the spindle without requiring external control intervention. The gear can rotate freely within a specific angle range and automatically re-engages with the spindle's rotation constraint body, enabling the system to self-regulate and eliminate complex control logic.
Solution Approach 2:
The drive gear incorporates a dynamic free rotation capability where the engagement angle between the drive gear and spindle can vary within a defined range. This dynamic adjustment allows the mechanism to adapt to different operational states automatically, reducing the need for complex control systems while maintaining automated valve control functionality.
2Reliability
If a complete gear structure is used for torque transmission, then reliable torque transmission is achieved, but the device size and power requirements increase
Solution Approach 1:
The patent extracts only the necessary portion of the gear structure by using an incomplete drive gear with a specific engagement angle. This incomplete gear structure removes unnecessary gear teeth and material while maintaining sufficient torque transmission capability for the valve core operation, thereby reducing the overall volume of the transmission mechanism.
Solution Approach 2:
The drive gear is designed with an engagement angle that provides partial gear interaction rather than complete circumferential engagement. This partial action approach delivers adequate torque transmission for the specific application requirements while significantly reducing the gear size and associated power requirements compared to a complete gear structure.
3Manufacturing precision
If the drive gear is rigidly connected to the spindle, then precise torque transmission is achieved, but the control logic becomes complex and power consumption increases
Solution Approach 1:
The patent changes the connection parameter between the drive gear and spindle from a rigid fixed connection to a controlled engagement connection with a defined free rotation angle. This parameter change allows the system to achieve precise torque transmission when engagement is required while consuming minimal power during the free rotation phase, as no torque is transmitted during the free rotation period.
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 efficient bi-directional rotation of the valve core, reduces the power required for tooth engagement reset, and simplifies the control logic, thereby achieving a more compact and cost-effective valve component design.
Implementation Method 1
The drive gear transmits the torque to the spindle by mutual extrusion of the rotation constraint bodies
Implementation Method 2
an elastic member is further disposed between the spindle and the drive gear, the drive gear transmits torque to the spindle through the elastic member, and the spindle and the drive gear realize a relative rotation through an elastic deformation of the elastic member
Implementation Method 3
the elastic member is a torsion spring sleeved on the spindle, one end of the torsion spring is fixedly connected to the spindle, and the other end of the torsion spring is fixedly connected to the drive gear
Data Source
AI summary
The embodiments of the present disclosure provide a valve core transmission member, a valve controller, and a valve control method. The valve core transmission member includes a drive gear and a spindle, wherein the drive gear is configured to drive the spindle to rotate around a spindle axis and the drive gear is an incomplete gear with an effective engagement angle. The drive gear is capable of rotating around the spindle axis relative to the spindle and have a free rotation angle relative to the spindle; and the effective engagement angle of the drive gear is greater than a free rotation angle.