Rotary Speed-Regulating Valve for Smooth Hydraulic Support Alignment
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Solution Overview
Problem
In fully mechanized mining faces, the discontinuous adjustment of hydraulic support alignment through large-flow electro-hydraulic or manual-operated valves causes impacts on hydraulic components, necessitating a speed regulating valve to continuously adjust the flow rate of emulsion for precise alignment without manual intervention.
Innovation Solution
A speed regulating valve with a rotatable valve core and base, featuring internal and external speed regulating ports, and a fixed differential pressure reducing device, allows for gradual alignment and control of the flow rate, minimizing the impact on the alignment system during adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If large-flow electro-hydraulic reversing valve or manual-operated valve is used for alignment adjustment, then the alignment function is achieved, but discontinuous flow rate change causes impact on hydraulic components
Solution Approach 1:
The patent transforms the static valve opening state into a dynamic continuous adjustment process. The valve core and valve base rotate relative to each other, enabling the flow area to change continuously from closed to fully opened state, thereby achieving continuous flow rate adjustment and eliminating impact on hydraulic components.
Solution Approach 2:
The patent changes the flow rate parameter from discontinuous to continuous by implementing a rotational adjustment mechanism. The relative rotation between valve core and valve base gradually changes the flow area parameter, allowing smooth transition of flow rate from zero to maximum without sudden jumps that cause impact.
2Measurement precision
If manual adjustment is used for hydraulic support straightness, then positioning is achieved, but continuous advancing process requires automated control
Solution Approach 1:
The speed regulating valve enables the system to automatically control its own flow rate without external manual intervention. The rotational adjustment mechanism allows the valve to self-regulate the emulsion flow to the hydraulic support during continuous advancing, achieving both precision positioning and automation.
3Speed
If rapid valve opening is used for emulsion flow, then response speed is improved, but flow rate impact on alignment system increases
Solution Approach 1:
The patent implements a dynamic flow control process where the valve transitions from closed to opened state through gradual rotation. This dynamic process allows the flow rate to increase smoothly over time rather than abruptly, maintaining fast response while minimizing impact on the alignment system.
Solution Approach 2:
The rotational adjustment mechanism provides a cushioning effect by gradually increasing the flow area before full opening is reached. This preliminary gradual expansion of flow area cushions the emulsion flow, preventing sudden impact on the alignment system while still achieving rapid overall response.
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 precise control of the hydraulic support's position by gradually changing the emulsion flow rate from zero to maximum, reducing the impact on the alignment system and ensuring continuous, efficient adjustment processes.
Implementation Method 1
a fixed differential pressure reducing device is arranged between the inlet of the speed regulating valve and the valve core, the fixed differential pressure reducing device is provided with a sealing part, one end of the sealing part is in communication with the inlet of the speed regulating valve, and an other end of the sealing part is in communication with the outlet of the speed regulating valve, to balance a pressure difference between the outlet and the inlet of the speed regulating valve
Data Source
AI summary
A speed regulating valve, an alignment system, and an alignment method are provided. The speed regulating valve includes a valve core and a valve base. The valve core is provided with an internal channel and is in communication with an inlet of the speed regulating valve. A first speed regulating port is arranged on the valve core. The valve base is in communication with an outlet of the speed regulating valve, and a second speed regulating port is arranged on the valve base. The valve core and the valve base are rotatable relative to each other, and the second speed regulating port is on a trajectory of a rotation of the first speed regulating port.