Coke Crushing Tool Control Device Segmentation
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Solution Overview
Problem
The existing tool for crushing coke with a switching device and control device experiences high friction and resource requirements due to the design of the control profile with mirror-image control curves, leading to complex production and maintenance needs.
Innovation Solution
The control device is redesigned with four control parts concentrically offset by 90°, featuring a switching element with a head that engages with a control part during linear movement to rotate the control device by 90°, allowing for a low-friction switch-over process and ensuring high long-term functional reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control device uses a control profile with mirror-image control curves, then the switching function is achieved, but friction and resource requirements increase leading to complex production and maintenance
Solution Approach 1:
The control device is segmented into four independent control parts (control curves) arranged concentrically at 90° intervals, replacing the complex mirror-image profile with simpler, modular control elements that reduce friction and maintenance needs while maintaining switching reliability
Solution Approach 2:
The invention replaces the symmetric mirror-image control curves with an asymmetric arrangement of four control parts offset by 90°, where each control part has a simpler geometry that reduces friction during switching operations
2Ease of operation
If the switching element moves linearly from inactive to active position, then the switch-over is achieved, but friction increases with the control profile engagement
Solution Approach 1:
The control device is designed to rotate dynamically by 90° during switching, with the switching element moving linearly while engaging different control parts in sequence, reducing static friction through controlled dynamic movement
Solution Approach 2:
The head of the switching element acts as an intermediary that engages with the control parts, transferring the linear motion into rotational motion of the control device while minimizing direct friction through the head's geometry and engagement mechanism
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 achieves reliable switching of the control device and valve unit with reduced friction and resource requirements, enabling a robust and efficient operation with minimal maintenance needs.
Implementation Method 1
the driving device can be automatically actuated by a pressure accumulator in dependence upon changes in the pressure of the water, the operating pressure of the water is reduced to a switching pressure and the switching pressure is increased again to the operating pressure after the switching with said changes
Data Source
AI summary
A tool for crushing coke using high-pressure water is attached to a drilling rod through which water flows at high pressure. The tool further a control device for directing the water into either drilling nozzles or cutting nozzles depending on the rotational position of the control device. A switching element driven by water pressure engages the control device to cause the control the device to rotate from one rotational position to another rotational position, thereby changing the tool from cutting to drilling or vice versa.