Telescopic Auger Drilling Device for Low Height Access
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Solution Overview
Problem
Existing drilling devices with telescopic augers face challenges in minimizing spatial extent and protecting energy transmission elements, particularly when operating at low working heights, such as under power lines, and require complex corrective movements for precise drilling.
Innovation Solution
The drilling device incorporates a hydraulic lifting drive within the shaft for rotary transmission and uses a telescopic arrangement with an inner and outer tube for axial displacement, along with a support tube that can be rotated and displaced, allowing for compact design and protection of energy transmission elements, enabling efficient earth drilling at low heights without unnecessary corrective movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the drilling device operates at low working heights (e.g., under power lines), then it can access restricted areas, but the spatial extent and complexity of the device increases
Solution Approach 1:
The patent implements a telescopic auger system where the auger can be extended and retracted within a housing structure. The auger shaft telescopes in and out of the auger housing, allowing the drilling device to maintain a compact form when not in use while being capable of extended drilling depth when needed. This nesting principle directly addresses the contradiction by allowing the device to adapt its size to fit restricted spaces while maintaining full functionality.
Solution Approach 2:
The patent employs a movable drilling drive that can be positioned at different locations along the boom structure. The drilling drive is mounted on a carriage that can travel along the boom, allowing dynamic repositioning to optimize the drilling operation. This dynamic capability enables the device to adapt to various working heights and positions, maintaining simplicity in each operational configuration while providing versatility across different scenarios.
2Device complexity
If energy transmission elements are exposed for auger displacement, then the system remains simple, but the elements are vulnerable to mechanical damage during drilling operations
Solution Approach 1:
The patent introduces a telescopic mechanism as an intermediary between the drilling drive and the auger. The telescopic assembly includes an inner tube and outer tube that slide relative to each other, providing a protected pathway for the auger to extend and retract. This intermediary structure shields the energy transmission elements from direct exposure to mechanical damage while maintaining the simplicity of the overall system through straightforward telescopic motion.
3Length of stationary object
If a telescopic auger is used to achieve deep drilling with limited height, then the device becomes more complex, but the working height requirement is reduced
Solution Approach 1:
The patent divides the auger into multiple telescopic sections that can extend and retract independently. The auger consists of an inner telescopic section and an outer telescopic section, each capable of relative motion. This segmentation allows the auger to achieve greater extended length for deep drilling while maintaining a compact retracted form, directly reducing the required working height without excessive complexity through the use of straightforward telescopic joints.
4Adaptability or versatility
If the drilling drive is movably mounted on the support structure, then the device gains flexibility, but the complexity of positioning and control increases
Solution Approach 1:
The patent implements a self-positioning mechanism where the movable drilling drive automatically aligns and positions itself during operation. The carriage-mounted drilling drive utilizes the boom's motion and gravity to achieve proper positioning without requiring complex external control systems. This self-service approach provides positioning flexibility while minimizing the complexity of control mechanisms.
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 configuration allows for compact and stable drilling operations at low working heights, protecting energy transmission elements and simplifying corrective movements, thereby facilitating deep drilling and stabilizing boreholes by preventing loose material from falling in.
Implementation Method 1
a hydraulic lifting drive is arranged within a shaft for rotary transmission... the energy transmission elements are hydraulic hoses filled with hydraulic oil... to displace the telescopic sections relative to one another
Data Source
Figure 1A~1D
Figure 2A~2C
Figure 3A~3B
AI summary
The device has a drilling drive (4) attached to a carrier device in a movable manner, and a drilling worm gear rotatable around a longitudinal axis by the drilling drive. Energy transmission elements are provided for displacement of the worm gear along the longitudinal axis and extended through the drilling drive. A hydraulic-lift drive (6) is arranged in an inner area of a shaft for torque transmission. The shaft is provided with an inner tube (7a) and an outer tube (7b), where the elements are designed as hydraulic hoses (10a, 10b) filled with hydraulic oil.