Mining Plow Cutter Carrier Mounting via Open-Edged Pivot Bearing
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Solution Overview
Problem
Existing mining plows face challenges in efficiently mounting and demounting cutter carriers, especially in low-thickness configurations, due to the complexity and time-consuming nature of the process, which can lead to operational inefficiencies and potential jams.
Innovation Solution
The design features open-edged receptacles for pivot bearings, allowing cutter carriers to be pushed onto pivoting bolts parallel to the bearing surface, providing precentering and alignment, and a U-shaped wall with a collar and grooved necking for secure mounting, along with a supporting surface and footpart with a projecting web for enhanced guidance and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If closed depression pivot bearings are used in the rear side of the cutter carrier, then the cutter carrier can be mounted on the pivoting bolt, but the mounting process becomes time-consuming and complex, especially in low-thickness configurations
Solution Approach 1:
The patent inverts the conventional approach by moving the pivot bearing from the rear side (closed depression) to the front edge (open-edged receptacle). This inversion allows the cutter carrier to be pushed onto the pivoting bolt from the front, parallel to the bearing surface, enabling easy mounting without requiring lowering operations or complex lifting devices. The open-edged receptacle at the front edge provides direct access for push-on mounting while maintaining secure connection.
2Reliability
If closed depression pivot bearings are used, then the cutter carrier can be secured, but lifting devices are required to suspend the cutter carrier weight during mounting
Solution Approach 1:
The patent extracts the pivot bearing from the rear side location and relocates it to the front edge of the cutter carrier. This extraction eliminates the need for lifting devices that would be required to suspend the cutter carrier weight if the bearing were positioned at the rear. The open-edged receptacle at the front edge allows the cutter carrier to be pushed onto the pivoting bolt while supported on the bearing surface, removing the complexity of lifting and suspension mechanisms.
3Productivity
If the cutter carrier is pushed onto the pivoting bolt parallel to the bearing surface, then mounting becomes simple and fast, but precise alignment must be achieved during the push-on movement
Solution Approach 1:
The patent applies preliminary action through the design of the open-edged receptacle and the corresponding pivoting bolt geometry. The receptacle's opening is positioned and oriented such that when the cutter carrier is pushed onto the pivoting bolt parallel to the bearing surface, the geometry automatically guides and centers the pivot bearing on the pivoting bolt axis. This preliminary geometric arrangement ensures precise alignment is achieved during the simple push-on movement, eliminating the need for complex alignment procedures while maintaining high mounting speed.
Data Source
AI summary
A mining plow with a plow basic body which can be guided on a conveyor and which has on an inclined bearing surface a pivoting bolt for the pivotable mounting of a cutter carrier for each plow travel direction Two cutter carriers are mounted pivotably on respective pivoting bolts by a pivot bearing such that each cutter carrier is guided on a pivoting surface oriented concentrically about the pivot axis of the associated pivoting bolt and formed below the bearing surface on the plow basic body. The pivot bearing of each cutter carrier includes an open-edged receptacle, each cutter carrier being located on the pivoting bolt parallel to the bearing surface in a pivoting mounting position.