Horizontal Drilling Machine Impact Device for Hard Rock Efficiency
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Solution Overview
Problem
Existing horizontal drilling machines have low drilling efficiency and high costs, particularly when drilling deep into hard rock formations, making them unsuitable for core drilling and time-consuming as the depth increases.
Innovation Solution
A horizontal drilling machine with an impact device that includes a control system, support frame, armored cable, cable-straightening mechanism, cable-feeding mechanism, washing pump, power head, drill pipe, drilling tool, fishing device with impact mechanism, core tube, and thrust cylinder, which utilizes the armored cable to transmit impact force for efficient drilling through a magnetic fishing head and spring-activated transmission blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional screw motor drilling is used, then the structure is simple, but the drilling efficiency is low and drilling time is excessive for deep holes
Solution Approach 1:
The patent combines the screw motor and hydraulic impactor into a single integrated drilling tool assembly. The screw motor provides continuous rotational drilling while the hydraulic impactor delivers periodic impact forces, creating a composite drilling action that significantly improves drilling efficiency for hard rock formations compared to traditional single-method drilling
Solution Approach 2:
The drilling tool is designed with multi-functionality, capable of performing both continuous rotational drilling via the screw motor and impact drilling via the hydraulic impactor. This universal tool can handle various drilling conditions and rock types, replacing the need for multiple specialized drilling devices
2Adaptability or versatility
If traditional single-mode operation is used, then the device is simple to operate, but it is not suitable for core drilling and deep exploration
Solution Approach 1:
The drilling system employs dynamic operation modes that can be adjusted during drilling. The hydraulic impactor can be activated or deactivated based on drilling conditions, allowing the system to switch between continuous rotational drilling and impact-assisted drilling. This dynamic adaptability enables the same device to perform both general drilling and core drilling operations
Solution Approach 2:
The drilling tool is segmented into distinct functional modules: the screw motor section, the hydraulic impactor section, and the core barrel section. This modular segmentation allows independent operation of each module, enabling versatile operation modes including continuous drilling, impact drilling, and core sampling, while maintaining relative operational simplicity through standardized control procedures
3Length of moving object
If drilling depth increases to hundreds or thousands of meters, then exploration capability is improved, but the drilling operation becomes extremely time-consuming
Solution Approach 1:
The hydraulic impactor operates by delivering periodic impact forces to the drill bit during the drilling process. This periodic impact action, synchronized with the continuous rotation of the screw motor, accelerates rock fragmentation and reduces the time required to drill deep holes compared to continuous rotational drilling alone
Solution Approach 2:
The system maintains continuous useful action by combining the continuous rotational drilling of the screw motor with periodic impact forces from the hydraulic impactor. This continuous composite action ensures that drilling progresses steadily without interruption, significantly reducing total drilling time for deep exploration compared to intermittent or single-mode drilling operations
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 machine achieves rapid and efficient drilling and coring of hard strata with a simple and compact structure, capable of collecting intact core samples, significantly improving drilling efficiency and reducing operational costs.
Implementation Method 1
the impact device of the fishing device is configured to transmit an impact force to the drill pipe through a transmission block to perform impact vibration drilling on hard formation
Implementation Method 2
one end of the armored cable is connected to the control system, and the other end of the armored cable passes through the cable-straightening mechanism, the cable-feeding mechanism and a sealing joint to be connected to the fishing device with the impact device in the drill pipe
Implementation Method 3
a water outlet of the washing pump is communicated with the inner cavity of the active drill pipe through a rotating water-supply device
Data Source
AI summary
A horizontal drilling machine with an impact device, including a support frame, an armored cable, a cable-straightening mechanism, a cable-feeding mechanism, a power head, a drill pipe, a rotating chuck, a damper, a fishing device with the impact device, a core tube and a thrust cylinder. One end of the thrust cylinder is hinged with the support frame, and the other end of the thrust cylinder is connected to the power head. The power head is arranged on a slid rail of the support frame. An active drill pipe of the power head is connected to the drill pipe. An end of the armored cable is connected to a control system, and the other end is connected to the fishing device in the drill pipe. A fishing head of the fishing device is connected to a spearhead of the core tube.