Electromagnetic Switching Valve Assembly With Guided Transmission Member
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Solution Overview
Problem
Conventional electromagnetic switching valves require cumbersome assembly methods, necessitating the use of jigs to maintain the shaft and spool upright, complicating the assembly process due to issues with connecting the transmission member between the plunger and spool.
Innovation Solution
The electromagnetic switching valve incorporates a transmission member with a regulated part that prevents deviation during assembly, allowing easy insertion into the stator and alignment with the spool, simplifying the assembly process by using a tubular shape with protruding ribs to guide and secure the transmission member on the axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the transmission member is assembled by dropping it from above while the sleeve is fixed vertically, then the assembly process becomes simpler, but the transmission member may deviate from the vertical direction causing improper connection
Solution Approach 1:
The guide part acts as an intermediary element between the transmission member and the stator. It provides a physical guide that ensures the transmission member enters the stator along the correct vertical path, preventing deviation during the simple drop assembly process while maintaining proper alignment without requiring complex assembly equipment
Solution Approach 2:
The guide part creates a constrained path that equalizes the assembly process by providing a predetermined vertical trajectory for the transmission member. This ensures that regardless of minor variations in dropping position, the transmission member will align properly with the stator through the guide's constraining geometry
2Manufacturing precision
If jigs are used to hold the shaft and spool upright during assembly, then alignment precision is improved, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The guide part serves as a built-in intermediary structure that provides alignment guidance directly within the valve assembly. This eliminates the need for external jigs or holding devices, as the guide part itself ensures proper vertical alignment of the transmission member with the stator during assembly
Solution Approach 2:
The guide part provides self-alignment functionality that is built into the valve structure. During assembly, the guide part automatically guides the transmission member into the correct position without requiring external assistance from jigs or specialized assembly tools, making the process both simpler and sufficiently precise
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 configuration facilitates straightforward assembly of the transmission member, reducing assembly complexity and ensuring proper alignment without high-accuracy centering, while preventing foreign matter from entering the sliding region, thus enhancing operational reliability.
Implementation Method 1
an electromagnetic actuator, including a plunger disposed on the axis and a stator exerting a magnetomotive force on the plunger
Data Source
AI summary
An electromagnetic switching valve includes: a sleeve, defining a port communicating with an oil passage; a spool, reciprocally movably disposed on a predetermined axis in the sleeve, opening and closing the port; an electromagnetic actuator, including a plunger disposed on the axis and a stator exerting magnetomotive force on the plunger; and a tubular transmission member, disposed on the axis to be interposed between the plunger and the spool and transmit driving force. The stator includes an insertion hole through which the transmission member is inserted. The transmission member includes a regulated part regulated not to deviate from a range allowing an upper end of the transmission member to be inserted into the insertion hole of the stator when the transmission member is dropped and assembled into the sleeve from a vertical direction for a lower end of the transmission member to abut against the spool integrated into the sleeve.