Hydraulic Valve Guide Segmentation for Cost Reduction
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Solution Overview
Problem
Conventional valves for hydraulic drives are costly to produce and maintain due to complex manufacturing processes and high material requirements, with custom-made components and high surface quality needs, leading to high operational costs and limited maintainability.
Innovation Solution
A valve design featuring a shut-off body formed in one or two parts with a guide means comprising three guide parts and pins, allowing for sliding and sealing cooperation, reducing material and machining costs, and enabling easy maintenance by modular replacement of damaged components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional valves are manufactured with custom-made components and high surface quality requirements, then manufacturing precision and reliability are improved, but manufacturing cost and complexity increase significantly
Solution Approach 1:
The guide means is divided into three separate guide parts that can be manufactured independently using standard machining processes, then assembled together. This segmentation allows each part to be produced with常规 manufacturing methods rather than requiring custom-made complex components, reducing manufacturing cost while maintaining assembly precision through standardized interfaces.
Solution Approach 2:
High surface quality is applied only to the specific guide means regions where the shut-off body slides, rather than requiring high surface quality across entire valve components. This localized application of high precision machining reduces overall manufacturing complexity and cost while ensuring reliability only where it is functionally necessary for sealing and sliding cooperation.
2Strength
If conventional valves use high material requirements and complex manufacturing processes, then valve strength and durability are improved, but manufacturing time and productivity decrease
Solution Approach 1:
The valve components are segmented into modular parts (three guide parts, shut-off body, retaining means) that can be manufactured independently using standard processes and then assembled. This modular approach allows parallel manufacturing of components, significantly improving productivity while maintaining strength through proper material selection for each specific component based on its functional requirements.
Solution Approach 2:
The invention changes the manufacturing parameters from custom-made complex components to standard machining parameters that can be applied to multiple components. By using conventional machining processes with standardized tolerances for most surfaces and only applying high precision where necessary, the manufacturing time per component is reduced while maintaining adequate strength through appropriate material selection and heat treatment where required.
3Stability of the object's composition
If conventional valves are designed as integrated components, then structural stability is improved, but ease of maintenance and repairability worsen
Solution Approach 1:
The guide means is segmented into three separate guide parts that are permanently joined, creating a stable modular assembly that maintains structural integrity while allowing the entire guide means assembly to be replaced as a unit or individual guide parts to be replaced if damaged. The shut-off body and retaining means are also separate replaceable components, improving maintenance ease while maintaining structural stability through proper design of connection interfaces.
Solution Approach 2:
The design allows damaged components such as the shut-off body, retaining means, or individual guide parts to be replaced independently rather than requiring replacement of the entire valve assembly. This selective replacement capability improves ease of repair and maintenance while maintaining structural stability through standardized interfaces and sealing arrangements that ensure proper function after component replacement.
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 design significantly reduces manufacturing costs, frictional losses, and maintenance expenses while improving switching reliability and service life, enabling cost-effective large-scale production and easier maintenance.
Implementation Method 1
the movement of the shut-off body relative to the guide means takes place in sliding co-operation with the first and second guide means regions
Implementation Method 2
closing of the third valve opening by the shut-off body in sealing co-operation with the third guide means region
Implementation Method 3
a compression spring and biasing the piston in each case in a defined rest position
Implementation Method 4
a compression spring and biasing the piston in each case in a defined rest position
Data Source
AI summary
A valve provided for the blocking or controlled establishment of a volume flow of a working fluid in a flow path of a technical device that transmits and/or stores energy, in particular in a control device for a hydraulic drive, an associated method of manufacture of the valve, and an apparatus with the valve. The valve includes first, second, and third valve openings, a moveable shut-off body moveable between an open-position and a close-position, a guide which guides the shut-off body between the open-position and the close position, and a retainer which exerts a retaining force on the shut-off body in the close-position. The guide has three guide parts. The first and third guide parts enclose the shut-off body and the second guide part includes a plurality of pins in a parallel orientation to the direction of movement of the shut-off body.