Tap Hole Plug Gun Hinged Joint Mechanism
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Solution Overview
Problem
Existing tap hole plug guns require significant installation effort for nozzle and mouthpiece exchange due to numerous bolt connections, which complicates maintenance and servicing while trying to maintain reliable mechanical connections and sealing under high ejection forces.
Innovation Solution
A hinged joint arrangement with wedge-shaped joint bolts and jamb portions between the mouthpiece and material chamber or nozzle part, allowing for easy detachment and axial sealing, along with a radial engagement device using ring webs and grooves for reduced installation effort and enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple bolt connections are used to connect the nozzle part and mouthpiece, then reliable mechanical connection and sealing are achieved, but installation effort and complexity increase significantly
Solution Approach 1:
The connection device is segmented into a clamp component and a connection component that can be separately assembled and disassembled. The clamp component engages with the connection component through a form-fit connection, allowing the mouthpiece to be divided into separable parts that can be independently maintained or replaced, thereby reducing overall complexity while maintaining connection reliability.
Solution Approach 2:
The connection device transitions from a static bolted flange connection to a dynamic clamp-based system. The clamp component can be quickly opened and closed around the connection component, enabling rapid assembly and disassembly without requiring multiple bolts to be tightened and loosened, thus reducing installation effort while maintaining secure connection.
2Reliability
If multiple bolt connections are used to connect the nozzle part and mouthpiece, then reliable mechanical connection and sealing are achieved, but maintenance time and service effort increase
Solution Approach 1:
The mouthpiece is segmented into a clamp component and a connection component that can be separately removed. During maintenance, the clamp component can be quickly released and the connection component removed without disturbing other parts of the system, significantly reducing maintenance time and effort compared to disconnecting multiple bolted flange connections.
Solution Approach 2:
The connection component is extracted as a separate, independently removable element from the mouthpiece assembly. This allows the connection component to be easily taken out for cleaning, inspection, or replacement without requiring disassembly of the entire mouthpiece or nozzle part, thereby improving ease of repair and maintenance accessibility.
3Volume of moving object
If a reduced diameter section is introduced from nozzle part to mouthpiece, then tap hole plug gun diameter is reduced, but ejection forces increase on the connection device
Solution Approach 1:
The clamp component acts as a flexible embracing structure that wraps around the connection component. This shell-like configuration distributes the high ejection forces uniformly across the entire circumference of the connection, rather than concentrating forces at discrete bolt locations, thereby enabling the connection device to withstand increased ejection forces while maintaining a compact, reduced-diameter design.
Solution Approach 2:
The connection device transitions from a planar flange connection to a three-dimensional clamp structure. The clamp component surrounds the connection component in a circumferential manner, creating a form-fit connection that utilizes radial and axial dimensions to distribute and resist ejection forces more effectively, allowing the system to handle higher forces in a more compact volume.
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
Facilitates easy removal and maintenance of the mouthpiece with reduced installation effort while maintaining reliable mechanical connections and achieving simultaneous axial and radial sealing, thereby simplifying the servicing of tap hole plug guns.
Implementation Method 1
the joint bolts having, at least in sections, a wedge portion which is wedge-shaped in the direction of a joint axis, and a joint plate of each hinged joint being provided with a jamb portion of a joint eyelet for receiving the wedge portion of the joint bolt, said jamb portion being wedge-shaped in the direction of the joint axis
Data Source
AI summary
A tap hole plug gun comprising a material chamber for receiving a plugging compound and a mouthpiece for being placed on a tap hole, the mouthpiece being connected to a nozzle part disposed on the material chamber by means of an unlockable connection device. The connection device is realized as a hinged joint arrangement, the hinged joint arrangement having two opposite hinged joints each having a joint bolt which can be removed from the connection to a joint plate arrangement.