Earth Drilling Device Discharge Line Pivoting Mechanism
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Solution Overview
Problem
Existing earth drilling devices face challenges in preventing the discharge line from resting on the ground when contracted to a minimum length, requiring complex crane devices for lifting, which are robust and costly.
Innovation Solution
The discharge line is connected to a funnel and a guide frame with pivoting units, allowing it to be easily pivoted away from the ground, avoiding contact, and is designed with hydraulic operation for remote control and a foldable hose structure for compactness and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crane system is used to lift the discharge pipe when the drill string is deeply embedded, then the discharge pipe can be prevented from resting on the ground, but the device complexity and cost increase significantly
Solution Approach 1:
The discharge pipe is made dynamically adjustable through a telescopic structure with multiple pipe sections that can extend and retract. This dynamic configuration allows the pipe length to adapt to the drilling depth, preventing ground contact without requiring a robust crane system. The pipe can be extended when needed and retracted to minimum length for compact storage.
Solution Approach 2:
A hydraulic lifting device is provided to raise the discharge pipe when the drill string reaches deep points. This hydraulic mechanism offers a more compact and integrated solution compared to an external crane system, reducing overall device complexity while maintaining the ability to prevent ground contact.
2Ease of operation
If the discharge pipe is compressed to minimum length, then storage and transport become easier, but the pipe may rest on the ground and prevent controlled ejection of drill cuttings
Solution Approach 1:
The discharge pipe employs a telescopic design with multiple extendable sections that can be dynamically adjusted between a compact retracted state for storage and an extended state for operational use. This ensures the pipe can be compressed to minimum length when not in use while extending sufficiently during operation to maintain proper ejection control.
3Power
If a robust crane system is designed to lift the entire discharge pipe including winch, then the lifting capability is sufficient, but the system becomes overly complex and costly
Solution Approach 1:
The lifting function is extracted from a complex crane system and implemented as a dedicated hydraulic lifting device integrated into the discharge pipe assembly. This separate, purpose-specific lifting mechanism provides sufficient power for the task while significantly reducing overall system complexity compared to a full crane system.
Solution Approach 2:
A hydraulic lifting device is provided to raise the discharge pipe when the drill string reaches deep points. This hydraulic mechanism offers a more compact and integrated solution compared to an external crane system, reducing overall device complexity while maintaining the ability to prevent ground contact.
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 solution prevents the discharge line from touching the ground without the need for a crane device, ensuring controlled ejection of drill cuttings and facilitating easier storage and maintenance by maintaining a compact, protected unit.
Implementation Method 1
at least one swivel unit is hydraulically operated. This enables remote-controlled swiveling of the discharge pipe
Implementation Method 2
the discharge device comprises a collection container having a radially projecting outlet nozzle
Data Source
Figure 1a~1b
Figure 1c
Figure 2a~2b
AI summary
The invention relates to an earth drilling device comprising a drill auger which can be driven about a drilling axis via a rotary drive (2) and which is surrounded by a drill pipe (4), an ejection device (3) for removing drill cuttings from the drill auger, a mast (1) along which the drill auger with the ejection device (3) can be moved via a feed carriage (11), and a discharge line (5) of variable length which can be attached to the ejection device (3), wherein the discharge line (5) is connected at its end facing the ejection device (3) to a funnel (6) connected to a first pivoting unit (74) and at its other end to a guide frame (7, 8) which can be pivoted via a second pivoting unit (75), wherein the first pivoting unit (74) is movable and the second pivoting unit (75) is fixedly arranged on the mast (1).