Axially Adjustable Tension Brake for Consistent Reel Tension
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Solution Overview
Problem
Existing tension brake assemblies for reel units in industrial applications lack efficient control over frictional engagement, leading to inconsistent tension regulation and limited adjustability for wear compensation.
Innovation Solution
The proposed tension brake assembly features a frame with multiple brake pad assemblies, a hub assembly with a rotor and drive pins, and an actuator mechanism that allows axial movement of the hub relative to the frame, enabling precise control over frictional engagement and tension adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing tension brake assemblies are used, then the structure is simple, but the control over frictional engagement is inefficient leading to inconsistent tension regulation
Solution Approach 1:
The brake assembly incorporates movable brake pads that can dynamically adjust their position axially along the rotor surface. The brake pad carrier allows the brake pads to move in the axial direction, enabling real-time adjustment of frictional engagement based on operational requirements and wear compensation, thus achieving consistent tension regulation throughout the operational lifecycle.
Solution Approach 2:
The brake assembly is divided into multiple independent brake pad assemblies, each with its own carrier and adjustment mechanism. This segmentation allows individual pads to be adjusted independently, providing finer control over the frictional engagement and enabling more precise tension regulation across different sections of the brake interface.
2Adaptability or versatility
If existing tension brake assemblies are used, then the device complexity is low, but the adjustability for wear compensation is limited
Solution Approach 1:
The brake pad carrier design enables the brake pads to automatically adjust their axial position through the carrier's movement along the shaft. This self-adjusting mechanism compensates for wear by allowing the brake pads to migrate axially, maintaining optimal frictional engagement without requiring complex external adjustment systems.
Solution Approach 2:
The brake assembly is designed with pre-configured adjustment capabilities built into the carrier structure. The carrier's geometry and the arrangement of drive pins are predetermined to provide automatic wear compensation, allowing the system to adapt to wear over time without requiring manual intervention or complex real-time control systems.
3Force
If the actuator moves the hub body toward the frame, then the friction exerted by the tension brake assembly increases, but the axial movement requirement adds complexity
Solution Approach 1:
The design merges the rotational function of the hub body with its axial adjustment capability. The hub body is configured to both rotate with the rotor and move axially along the shaft, combining two degrees of freedom into a single integrated component. This reduces the need for separate axial adjustment mechanisms while still enabling friction control.
Solution Approach 2:
The hub body serves multiple functions: it rotates with the rotor to transmit torque, it moves axially to adjust frictional engagement, and it supports the brake pads. This multi-functionality eliminates the need for separate components for each function, reducing overall system complexity while maintaining the ability to control friction force through axial movement.
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 design provides improved control over tension, allowing for precise adjustment to match deployment rates and accommodating wear over time, thereby enhancing the reliability and longevity of the tension brake assembly.
Implementation Method 1
a first brake pad having a friction surface on one side, and a second brake pad having friction surfaces on first and second sides
Data Source
AI summary
A tension brake assembly includes a frame, a plurality of brake pad assemblies, and a hub configured to be coupled to a rotating component. The hub includes a plurality of drive pins adjacent an annular wall. A rotor engages the plurality of drive pins such that rotation of the hub causes rotation of the rotor while permitting axial movement relative to the annular wall. The rotor has friction surfaces for engagement with the brake pad assemblies. An actuator is provided. Movement of the actuator in a first direction moves the friction components together in the axial direction to increase friction exerted by the tension brake assembly. Movement of the actuator in a second direction moves the friction components away from one another in the axial direction to decrease friction exerted by the tension brake assembly.