Six-Arm Tunneling and Anchoring Machine Integrating Roof Bolting
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Solution Overview
Problem
Coal mining processes face inefficiencies and safety concerns due to the separate operation of tunneling machines and roof-bolters, leading to high labor intensity and low efficiency in tunneling and anchoring tasks.
Innovation Solution
A six-arm tunneling and anchoring machine is developed, integrating tunneling and anchoring functions with a tunneling machine and roof-bolter connected via roof bolt units, side bolt units, and a working platform group, utilizing hydraulic systems for efficient bolt installation and support, reducing manual labor and improving automation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a common tunneling machine is used for tunneling and then moved to install support bolts, then the machine can perform tunneling function, but the work efficiency is low and labor intensity is high
Solution Approach 1:
The patent combines the tunneling machine and roof-bolter into a single integrated six-arm tunneling and anchoring machine. The tunneling machine includes a frame body with six arms: four for tunneling operations and two for installing support bolts. This merging eliminates the need to move between separate machines, directly resolving the contradiction by maintaining tunneling capability while adding bolt installation capability to the same device, thereby improving work efficiency and reducing labor intensity.
Solution Approach 2:
The six-arm tunneling and anchoring machine performs multiple functions: tunneling, roof support bolt installation, and side wall bolt installation. The machine can switch between these functions using the same base platform, eliminating the need for separate specialized machines and reducing the time and labor required for transitions between different support operations.
2Productivity
If the tunneling machine is moved away after tunneling to install bolts, then bolt installation can be performed, but time is lost during machine repositioning
Solution Approach 1:
The patent merges the tunneling and bolt installation operations into a single machine that remains in position throughout both operations. The six-arm structure allows the machine to perform tunneling, then immediately switch to installing roof and side bolts without moving, eliminating repositioning time and improving overall productivity.
Solution Approach 2:
The machine performs preliminary tunneling operations, then immediately transitions to installing support bolts in the same location without moving. The integrated design allows the machine to prepare the tunneling area and then promptly provide support stabilization in a continuous operation sequence, eliminating delays associated with machine repositioning.
3Reliability
If separate tunneling machine and roof-bolter are used, then each machine can be optimized for its specific function, but the overall process complexity increases
Solution Approach 1:
The patent combines separate tunneling and bolt installation machines into one integrated six-arm machine. While this increases the complexity of the individual machine, it simplifies the overall process by eliminating coordination between multiple machines, reducing the number of operational transitions, and providing more stable support during both tunneling and bolt installation 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 integrated machine enhances tunneling and anchoring efficiency, reduces unsupported roof and side bolting time, ensures worker safety, and increases mechanical automation, allowing for simultaneous operation of roof and side bolt units without requiring the machine to be moved for bolt installation.
Implementation Method 1
utilizing hydraulic systems for efficient bolt installation and support
Data Source
AI summary
Some embodiments of the present disclosure provide a six-arm tunneling and anchoring machine for integrating tunneling and anchoring, which includes: a tunneling machine and a roof-bolter connected with each other. The roof-bolter includes roof bolt units, a side bolt unit, and a working platform unit. The tunneling machine includes a frame body, a walking part, a cutting part, a revolving body, a rear support body, a loading mechanism, a conveyor, an electronic control system, a hydraulic system, a spraying system and a cooling system. There are two sets roof bolt units, which are symmetrically arranged on the left and right sides of the frame body, and are located behind a revolving center of the revolving body. Each roof bolt unit is provided with two top anchor bolts.