Rotary Drill Bit With Gravity-Actuated Folding Jacket
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Solution Overview
Problem
Current rotary drilling rigs face inefficiencies in slag removal due to noise pollution and reduced work efficiency, particularly in cohesive soil layers, which accelerates rope aging and limits continuous operation.
Innovation Solution
A drill bit design featuring a drilling cylinder with a folding jacket and push rod system that automatically separates under gravity, eliminating the need for wire-based slagging and reducing noise, utilizing a cutting part with a toothed disc and centering tube for efficient slag removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the drill rod is rapidly rotated in forward and reverse directions to throw out slag with centrifugal force, then slag removal is achieved, but noise pollution is generated and work efficiency is reduced
Solution Approach 1:
The drill bucket is divided into a fixed portion and a rotatable portion, with the bottom plate segmented to form an opening. This segmentation allows slag to be discharged through the opening in the bottom plate without requiring rapid rotation of the entire drill rod, thereby reducing noise pollution while maintaining slag removal capability.
Solution Approach 2:
The harmful function of rapid rotation is extracted and replaced by a simpler mechanism. Instead of using rapid rotation to throw out slag, the invention extracts the slag discharge function and implements it through the opening in the bottom plate, which can be opened and closed as needed, eliminating the need for noisy rapid rotation.
2Productivity
If rapid rotation is used to shake out cohesive soil slags, then slag removal is attempted, but work efficiency remains low due to difficulty in shaking out cohesive soils
Solution Approach 1:
The bottom plate is segmented to form an opening that can be opened to discharge slag. This segmentation allows direct access to the slag accumulation area, enabling effective removal of cohesive soils without relying on the ineffective shaking action of rapid rotation.
Solution Approach 2:
The bottom plate is made dynamic with the ability to rotate and open/close the slag discharge opening. This dynamic capability allows the system to adapt to different drilling conditions and effectively discharge cohesive soils that cannot be removed by static or rapidly rotating methods.
3Productivity
If the main line is quickly pulled back and released for shaking out slag, then slag discharge is achieved, but the main rope ages faster
Solution Approach 1:
The slag discharge function is extracted from the main line operation. Instead of using the main line for shaking and discharge operations, the invention provides a dedicated opening in the bottom plate for slag discharge, separating these functions and reducing wear on the main rope.
Solution Approach 2:
The drill bucket performs self-service slag discharge through the opening in its bottom plate. The slag is discharged through the opening without requiring external assistance from the main line, allowing the main rope to focus solely on lifting and positioning operations, thereby extending its lifespan.
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
Enables rapid and efficient slag removal without noise pollution, improving work efficiency and extending equipment lifespan by automating the de-slagging process, while being cost-effective and compatible with existing drilling machines.
Implementation Method 1
the top of the cylinder jacket is rotatably connected to the drill cylinder body... the cylinder folding jacket and cutting part form an eccentric L-shaped structure... allowing the slags to fall automatically
Implementation Method 2
the cutting disk can rotate around the centering tube
Implementation Method 3
a toothed disk being fixedly provided on the lower end face of the cutting disk... the first sprocket is provided with first ridges having the same orientation
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention discloses a drill for a rotary drilling machine, comprising a drill cylinder provided at its upper end with a connecting part and at its lower end with a cutting part, wherein the drill cylinder comprises a drill cylinder body and a cylinder hinge, wherein the drill cylinder body is provided with a groove opening along its side wall in the longitudinal direction, and the open end of the groove opening is located at the lower end face of the drill cylinder body, wherein the cylinder hinge is arranged at the groove opening, and the upper part of the cylinder hinge is rotatably connected to the drill cylinder body via a first hinge, wherein the cutting part has a first connecting end and a second connecting end which are positionally opposite each other, and the first connecting end is rotatably connected to the lower part of the cylinder hinge via a second hinge. The structure of the invention is novel.The cylindrical hinged casing and the cutting element form an eccentric L-shaped structure. When the door-shaped frame is released from the hook, the cylindrical hinged casing is automatically separated from the drill cylinder body by gravity, allowing the slag to fall out automatically.