Torque Reaction Pulley for Inertia Crusher Torque Isolation
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Solution Overview
Problem
Conventional inertia cone crushers experience accelerated wear and unexpected failure due to high dynamic performance and complex force transmission mechanisms caused by the unbalanced weight rotating around the central axis, leading to maintenance challenges in material processing lines.
Innovation Solution
A torque reaction pulley is integrated into the drive transmission mechanism to dissipate dynamic torque generated by the unbalanced weight, isolating it from drive transmission components and allowing for non-circular orbiting motion, thereby reducing excessive torque and preventing damage to crusher components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an unbalanced weight is rotated around the central axis to create gyroscopic precision, then crushing performance is improved, but dynamic forces and torque increase causing accelerated wear and failure
Solution Approach 1:
A torque reaction pulley is introduced as an intermediary component between the drive motor and the unbalanced weight. This pulley absorbs and dissipates the reaction torque generated by the rotating unbalanced weight, preventing excessive dynamic forces from being transmitted to the drive transmission components. The pulley acts as a buffer that isolates the harmful torque while maintaining the desired crushing performance.
2Productivity
If the unbalanced weight rotates at high speed to maintain circular path, then crushing efficiency is improved, but torque variations cause wear and fatigue of drive components
Solution Approach 1:
The torque reaction pulley provides beforehand cushioning by being pre-configured to absorb and dissipate reaction torque before it can cause wear and fatigue to the drive transmission components. This protective measure is built into the system design, allowing the unbalanced weight to rotate at high speed for efficient crushing while the pulley proactively mitigates the harmful torque variations.
3Power
If the drive transmission is designed for high dynamic performance, then crushing capability is improved, but component wear and maintenance frequency increase
Solution Approach 1:
The harmful reaction torque is extracted and isolated from the drive transmission system through the torque reaction pulley. By separating the crushing capability function from the harmful torque transmission, the drive components can operate at high power for effective crushing while being protected from the excessive dynamic forces that would otherwise require frequent maintenance.
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 torque reaction pulley effectively reduces premature failure and maintenance needs by dissipating and isolating dynamic torque, maintaining a desired circular rotational path and angular velocity of the unbalanced mass, thus extending the lifespan of crusher components.
Implementation Method 1
an elastic component formed non-integrally with the input and output portions and having a first part anchored in coupled connection with the drive input portion and a second part anchored in coupled connection with the drive output portion so as to be positioned in the drive transmission pathway intermediate the drive input and output portions; the elastic component configured to transmit a torque to the mass body and to dynamically displace and/or deform elastically in response to a change in the torque resultant from rotation of the mass body within the crusher so as to dissipate the change in the torque at the crusher
Data Source
AI summary
A torque reaction pulley for an inertia cone crusher having an elastically deformable component responsive to a change in torque through the drive transmission of the crusher due to rotation of an unbalanced weight within the crusher.