Hydraulic Valve Housing Thread Locking for Precise Operating Point
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Solution Overview
Problem
The assembly of hydraulic valves with actuating devices is labor-intensive, and achieving precise valve adjustment is challenging due to the need for manual machining and iterative assembly processes.
Innovation Solution
The housing unit design allows the second housing part to be only partially screwed into the first housing part, with a securing device preventing relative movement between the threads, enabling precise axial positioning and adjustment of the hydraulic valve without the need for additional machining or component stocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the second housing part is completely screwed into the first housing part to minimize installation space, then the overall installation space is reduced, but the ability to adjust the operating point is lost
Solution Approach 1:
The housing unit allows dynamic adjustment of the screwing depth to change the operating point, transforming a static fixed-position design into a dynamic adjustable one. The second housing part can be screwed to different depths and secured at each position, enabling adaptation to different operating requirements while maintaining compact installation space.
2Manufacturing precision
If manual machining and iterative assembly are performed to achieve precise valve adjustment, then the operating point can be accurately set, but the assembly effort and time increase significantly
Solution Approach 1:
The housing unit is pre-configured with a securing device that enables precise axial positioning of the second housing part relative to the first housing part. This preliminary design feature eliminates the need for manual machining and iterative adjustments during assembly, as the precise positioning capability is built into the structure beforehand.
Solution Approach 2:
The securing device acts as an intermediary mechanism between the two housing parts, providing a reliable and precise connection that maintains the desired axial position. This intermediary component enables accurate valve adjustment without requiring direct manual intervention or iterative assembly processes.
3Manufacturing precision
If individual components are kept in different configurations or manual machining is performed during assembly, then valve adjustment accuracy can be achieved, but the device complexity and manufacturing costs increase
Solution Approach 1:
The housing unit design provides universal adjustability through a single standardized structure with a securing device. Instead of requiring multiple specialized components in different configurations, the universal design allows the same housing unit to be adjusted to different operating points by simply changing the screwing depth and securing position, reducing component variety while maintaining adjustment accuracy.
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
This design reduces assembly effort and enables reliable, precise adjustment of hydraulic valves, improving efficiency and eliminating the need for iterative assembly and manual machining.
Implementation Method 1
one or more electric coils cooperate in a generally known manner with the actuating element configured as an armature in order to actuate the valve piston by axial displacement of the armature by means of magnetic force
Data Source
AI summary
A housing unit for a hydraulic valve with an actuating device includes a first housing part with an internal thread and a second housing part with an external thread. A valve piston is disposed in the first housing part and an actuating element of the actuating device is disposed in the second housing part. The actuating element is operatively connected to the valve piston in the axial direction. The second housing part is only partially screwed into the first housing part in the assembled state of the housing unit. The housing unit further includes a securing device, which prevents a relative movement between the internal thread and the external thread in the assembled state of the housing unit in such a way that an operating point of the actuating device is set.