Core Drilling Rig Hydraulic Control Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current core drilling systems lack an efficient mechanism to automatically control hydraulic pressure and cool the drill bit, especially in high-temperature downhole environments, leading to challenges in maintaining consistent drilling operations and sample integrity.
Innovation Solution
A drilling control mechanism for core drilling rigs that includes a dental drill and core drill with a sliding fit, locking grooves, and a latch system, along with a fluid channel activation module, outer barrel unlocking module, and flow diverging module, which allows for automatic hydraulic pressure control and drill bit cooling by managing fluid flow through various channels and shear pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If hydraulic equipment is used for drilling operations, then drilling power and efficiency are improved, but automatic control of hydraulic pressure and cooling becomes difficult in high-temperature downhole environments
Solution Approach 1:
The system uses the hydraulic fluid itself to automatically control pressure and cooling functions. The fluid flows through channels that are blocked or unblocked by the working parts' positions, enabling the system to self-regulate without external control mechanisms. The hydraulic fluid both transmits power and performs cooling functions automatically based on the drilling operation state.
Solution Approach 2:
The patent employs hydraulic principles to transmit power and control the drilling operation. The hydraulic fluid flows through defined channels that connect the power source to the working parts, and the same fluid system provides cooling through dedicated channels. The hydraulic system's inherent fluid dynamics enable automatic pressure control and cooling without mechanical sensors or actuators.
2Stress or pressure
If the fluid channel is blocked before starting hydraulic equipment, then pressure control is achieved, but the working parts cannot move forward initially
Solution Approach 1:
The system pre-positions the working parts in a blocked state before hydraulic pressure is applied. The working parts are designed to automatically move to their operational position when hydraulic pressure is supplied, eliminating the need for separate actuation mechanisms. The blocking and unblocking actions are built into the working parts' structural design.
Solution Approach 2:
The fluid channel blocking and unblocking is achieved through dynamic movement of the working parts themselves. As the working parts move forward under hydraulic pressure, they automatically transition from blocking the fluid channel to unblocking it, enabling continuous power transmission. This dynamic state change is inherent in the working parts' design and operation.
3Temperature
If the drill bit is cooled during drilling, then drilling performance is maintained, but the cooling system becomes complex in high-temperature environments
Solution Approach 1:
The hydraulic fluid serves multiple functions simultaneously: it transmits power to the working parts, controls pressure through channel blocking, and cools the drill bit through dedicated cooling channels. This multi-functionality eliminates the need for separate cooling systems, reducing overall device complexity while maintaining effective cooling in high-temperature downhole environments.
4Power
If hydraulic equipment is used in high-temperature downhole environments, then drilling capability is improved, but equipment reliability decreases due to thermal effects
Solution Approach 1:
The system uses the hydraulic fluid's inherent properties to automatically manage thermal effects. The fluid flows through cooling channels that are activated when the working parts move to operational positions, providing self-regulated cooling without external control systems. This self-service approach maintains reliability by continuously managing temperature through the same fluid system that provides power.
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 precise control of hydraulic pressure, efficient cooling of the drill bit, and secure sample collection by automatically blocking and unblocking fluid channels, ensuring consistent drilling performance and sample integrity.
Implementation Method 1
The spring hole has a spring, and both ends of the spring are in contact with the outer wall of the core drill and the bottom surface of the spring hole, respectively. When the locking groove and the latch groove are directly opposite, the spring bounces.
Implementation Method 2
the fluid channel needs to be blocked. After starting, the axial restriction on the working parts needs to be released, so that the working parts move forward and the fluid channel is unblocked to provide hydraulic pressure to the working parts, as well as to drive the hydraulic motor.
Implementation Method 3
The drill bit is cooled.
Data Source
AI summary
A drilling control mechanism of a core drilling rig has a tooth drill and a core drilling rig. The core drilling rig is inside the tooth drill and engages with the drill in a sliding manner. A locking recess is formed at an inner wall of the tooth drill. A locking latch recess is formed at an outer wall of the core drilling rig and has a locking latch therein. The locking latch has a spring. When the locking recess is directly opposite the locking latch recess, the spring extends and the locking latch partially enters the locking recess. The core drilling rig has a central rod, a fluid channel activation module, an outer barrel, and outer barrel unlocking module and a flow diverging module. The central rod passes through the inner cavities of the fluid channel activation module, the outer barrel unlocking module and the flow diverging module.