Magnetic Floating Bracket Elevator Brake for Uniform Disc Gaps
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Solution Overview
Problem
Existing elevator braking devices often experience uneven gaps between friction plates and the brake disc, leading to axial force and one-sided wear, affecting the service life and response time of the braking system.
Innovation Solution
An elevator braking device with a floating bracket and position self-adjusting member, utilizing magnetic components to adjust the gaps between the friction plates and the brake disc, ensuring balanced gaps and reducing wear and axial force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If friction plates are disposed on both sides of the brake disc without position adjustment mechanism, then the braking device structure is simple, but the gaps between friction plates and brake disc vary greatly causing axial force and one-sided wear
Solution Approach 1:
The position self-adjusting member enables the floating bracket to automatically adjust its position based on the actual gap conditions. The magnetic portion interacts with the magnetic member to generate magnetic force that pushes the floating bracket toward the balanced position, achieving self-adjustment without external intervention or complex control systems.
Solution Approach 2:
The system establishes a feedback mechanism where the magnetic force between the magnetic portion and magnetic member responds to the gap conditions. When gaps are uneven, the magnetic force automatically adjusts to push the floating bracket toward the balanced position, creating a closed-loop self-regulating system.
2Duration of action of stationary object
If friction plates are disposed on both sides of the brake disc without position adjustment, then the device structure is simple, but the service life of brake disc and friction plates is reduced due to one-sided wear
Solution Approach 1:
The position self-adjusting member with magnetic components enables the floating bracket to automatically maintain balanced gaps, preventing one-sided wear and extending the service life of the brake disc and friction plates through self-regulation.
Solution Approach 2:
The magnetic portion and magnetic member are pre-configured to generate magnetic force that proactively pushes the floating bracket toward the balanced position before excessive wear occurs, preventing rather than correcting the problem.
3Loss of time
If friction plates are disposed on both sides of the brake disc without position adjustment, then the device structure is simple, but the response time of the braking device is affected
Solution Approach 1:
The magnetic force-based position self-adjusting member enables automatic real-time adjustment of the floating bracket position, ensuring optimal gap balance and improving response time without requiring external sensors or control systems.
Solution Approach 2:
The patent replaces complex mechanical adjustment mechanisms with a magnetic force-based system. The magnetic portion and magnetic member interact to provide smooth, contactless adjustment of the floating bracket position, reducing mechanical friction and improving response time.
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 solution ensures significant and balanced gaps between the brake disc and friction plates, preventing excessive wear and axial force, thereby extending the service life and improving the response time of the braking system.
Implementation Method 1
a position self-adjusting member, which includes a magnetic portion to act on the magnetic member on the floating bracket
Data Source
AI summary
An elevator braking device and an elevator system are provided by the present disclosure. The elevator braking device includes: a fixed frame; a floating bracket, which is disposed on the axial guide of the fixed frame and movable along the axial guide; a movable plate supported by the floating bracket, the movable plate having a second friction plate on a second side of the brake disc; an actuator; and a position self-adjusting member which includes a magnetic portion to act on the magnetic member on the floating bracket such that after the braking state is released, the floating bracket tends to move towards a balanced position, thereby reducing a difference between a first gap G1 between the first friction plate and the brake disc and a second gap G2 between the second friction plate and the brake disc.