Elevator Brake Floating Bracket for Balanced 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 position self-adjusting mechanism using magnetic portions and screws to adjust the axial position of the floating bracket, ensuring balanced gaps between the brake disc and friction plates, thereby preventing excessive wear and axial force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the friction plates are positioned close to the brake disc to improve braking response time, then the response time is reduced, but the brake disc experiences axial force and one-sided wear which shortens service life
Solution Approach 1:
The floating bracket with magnetic members automatically adjusts its axial position based on the gaps between friction plates and brake disc. The magnetic attraction force self-regulates to maintain balanced gaps, eliminating the need for external adjustment mechanisms while preventing one-sided wear and axial force on the brake disc.
Solution Approach 2:
The magnetic members change the axial position parameter of the floating bracket dynamically. By adjusting the magnetic attraction force, the system optimizes the gap parameters between friction plates and brake disc, maintaining them within an optimal range that balances response time and wear prevention.
2Productivity
If the gaps between friction plates and brake disc are reduced to improve braking performance, then braking efficiency increases, but the brake disc is subjected to axial force causing one-sided wear
Solution Approach 1:
The magnetic members on the floating bracket automatically regulate the gaps between friction plates and brake disc through magnetic attraction. This self-regulating mechanism ensures gaps remain within the optimal range, maintaining braking efficiency while preventing axial force and one-sided wear without external intervention.
Solution Approach 2:
The system provides automatic feedback through magnetic interaction between the magnetic members and magnetic portions. The magnetic attraction force responds to gap variations, continuously adjusting the floating bracket position to maintain balanced gaps, thereby preventing harmful axial force while preserving braking efficiency.
3Device complexity
If a fixed position structure is used for the friction plates, then the device complexity is reduced, but the gaps between friction plates and brake disc become uneven causing one-sided wear
Solution Approach 1:
The floating bracket with magnetic members serves itself by automatically adjusting its position based on magnetic attraction. This simple yet effective mechanism maintains uniform gaps without requiring complex external adjustment devices, achieving both low complexity and high reliability.
Solution Approach 2:
The floating bracket transitions from a fixed to a dynamically adjustable position. The magnetic members enable the bracket to move axially and self-regulate gap uniformity, transforming a static structure into a dynamic one that adapts to wear and positional variations while maintaining reliability.
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 maintains significant gaps between the brake disc and friction plates, preventing axial force and one-sided wear, thus extending the service life and improving the response time of the braking system.
Implementation Method 1
a position self-adjusting member (3), which includes a magnetic portion (31) to act on the magnetic members (21, 22) on the floating bracket (2)
Data Source
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AI summary
An elevator braking device and an elevator system. The elevator braking device includes: a fixed frame (1); a floating bracket (2), which is disposed on the axial guide of the fixed frame (1) and movable along the axial guide; a movable plate (4) supported by the floating bracket (2), the movable plate (4) having a second friction plate (41) on a second side of the brake disc (6); an actuator (5); and a position self-adjusting member which includes a magnetic portion (31) to act on the magnetic member (211, 222) on the floating bracket (2) such that after the braking state is released, the floating bracket (2) tends to move towards a balanced position, thereby reducing a difference between a first gap (G1) between the first friction plate (25) and the brake disc (6) and a second gap (G2) between the second friction plate (41) and the brake disc (6). The elevator braking device according to the present invention ensures significant gaps between the brake disc (6) and the friction plates on both sides.