Drilling Machine Feeding Arrangement Valve Integration
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Solution Overview
Problem
Existing drilling machine feeding arrangements take longer to complete a drilling cycle due to slow contraction of the piston rod, which increases the overall time required for drilling.
Innovation Solution
A feeding arrangement with a valve connected directly to the pressure medium chamber, allowing for faster pressure reduction and contraction by draining pressure medium without passing through conduits or controls, and a valve that opens at increased pressure in the second chamber to facilitate faster movement of the piston and piston rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a valve connected directly to the first chamber is used to reduce pressure medium, then the contraction speed of the piston rod increases, but the device complexity increases due to the additional valve component
Solution Approach 1:
The valve is integrated directly into the piston rod structure, merging the valve function with the piston rod component. This eliminates the need for separate valve assemblies and reduces overall device complexity while achieving faster pressure reduction and contraction speed.
Solution Approach 2:
The valve is extracted from the traditional control system architecture and placed directly at the pressure medium chamber. This extraction removes the valve from complex control pathways and conduit systems, simplifying the overall device structure while improving contraction speed.
2Loss of time
If pressure medium is drained through conduits and control arrangements, then the system is more controllable, but the time required for drilling cycle increases due to slower pressure reduction
Solution Approach 1:
The pressure medium drainage path is extracted from the complex conduit and control system architecture. By placing the valve directly at the chamber, the drainage path is shortened and simplified, dramatically reducing the time required for pressure reduction and drilling cycle completion.
Solution Approach 2:
The pressure control function is segmented into a dedicated valve component integrated into the piston rod, separating the rapid drainage function from the slower control system. This segmentation allows independent optimization of drainage speed without affecting overall system controllability.
3Force
If a valve opens at increased pressure in the second chamber, then the contraction force increases, but the system requires higher pressure generation capability
Solution Approach 1:
The valve opening pressure parameter is set to activate at increased pressure in the second chamber. This parameter change ensures that the valve only opens when sufficient pressure differential exists, maximizing contraction force while the system's pressure generation capability handles the required pressure levels.
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 solution reduces the time needed for a drilling cycle by enabling faster contraction and extension of the feeding arrangement, improving efficiency and compactness, and allowing for easier maintenance and use.
Implementation Method 1
a valve (10) connected to the first chamber (7) for reducing the pressure medium (9) in the first chamber (7) and which valve (10) is arranged to be opened at an increased pressure in the second chamber (8)
Data Source
AI summary
An arrangement for feeding at least a part of a drilling machine in at least a first direction. A drilling system and a method are provided. The arrangement includes a first end portion, a second end portion, an outer cylinder, a piston and a piston rod. The piston and the piston rod are displaceably arranged in the outer cylinder such that the piston and the piston rod, the outer cylinder and the end portions delimits a first chamber and a second chamber for a pressure medium in the outer cylinder on a respective side of the piston. A valve is connected to the first chamber for reducing the pressure medium in the first chamber. The valve is arranged to be opened at an increased pressure in the second chamber.