Crash-Resistant Trip for Pipe Machining
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Solution Overview
Problem
Conventional pipe machining apparatuses experience crashes due to heavy forces involved in the cutting process, leading to increased maintenance, repair, and time delays.
Innovation Solution
A crash-resistant trip device is designed for pipe machining apparatuses, featuring an advancement projection with a non-perpendicular contact surface that prevents direct perpendicular contact, utilizing a worm gear and feed screw mechanism to incrementally advance the cutting tool, ensuring stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional trip device is used to increment the cutting tool, then the tool can be advanced toward the pipe, but the trip device may crash due to heavy forces involved
Solution Approach 1:
The contact surface is shaped to always be in a non-perpendicular contact position with the advancement member, which cushions against crash forces by preventing direct perpendicular impact before they can occur during operation
Solution Approach 2:
The geometry of the contact surface is changed from a conventional perpendicular orientation to a non-perpendicular orientation, fundamentally altering the contact parameters to reduce crash forces while maintaining tool advancement capability
2Device complexity
If the contact surface is perpendicular to the advancement member, then the advancement mechanism may be simpler, but crashes are more likely due to direct impact forces
Solution Approach 1:
The contact surface is designed with a specific non-perpendicular angle relative to the advancement member, changing the geometric parameter to distribute forces more favorably and prevent direct impact crashes
3Force
If the trip device is designed for heavy duty cutting operations, then it can handle the cutting forces, but the complexity and potential for crash increases
Solution Approach 1:
By changing the contact surface angle parameter, the device can handle heavy cutting forces without requiring more complex structural elements, as the non-perpendicular contact naturally distributes the forces more effectively
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 solution effectively reduces the likelihood of crashes by maintaining a non-perpendicular contact position, thereby minimizing maintenance and repair costs and reducing time delays associated with equipment failure.
Implementation Method 1
The worm gear is coupled to the drive gear. The feed screw is coupled to the drive gear.
Implementation Method 2
The feed screw is coupled to the drive gear. Upon the advancement member contacting the linear contact-surface of the advancement projection the advancement member is adapted to rotate causing the worm gear, the drive gear, and the feed screw to rotate thereby advancing the tool towards the pipe at the increment.
Data Source
AI summary
A pipe machining apparatus includes a frame, a tool support, an advancement device, and an advancement member. The tool support is coupled to and movable relative to the frame. The tool support is adapted to support a tool and move the tool in a direction toward a pipe at an increment. The advancement device includes an advancement projection fixedly attached to the frame. The advancement projection includes a contact-surface. The advancement member is coupled to the tool support. Upon the advancement member contacting the contact-surface of the advancement projection the advancement member is adapted to advance the tool towards the pipe at the increment. The contact-surface of the advancement projection is shaped to always be in a non-perpendicular contact position with the advancement member.