Wheel Brake Mechanical Adjustment Mechanism
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Solution Overview
Problem
Existing disc brake adjustment devices are dependent on vehicle energy and signaling systems, making them unreliable in case of failures, and have a bulky design due to components being aligned transversely to the displacement direction.
Innovation Solution
A wheel brake with a compact, mechanically independent adjustment device using threaded elements with a screw connection and spring-loaded coupling, where one threaded element is rotatable and the other axially movable, allowing for adjustment without electrical or pneumatic assistance, and featuring a double plunger and cup-shaped adjustment element for symmetric braking force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electrical or pneumatic adjustment devices are used, then the adjustment function can be automated, but the system becomes dependent on vehicle energy and signaling systems, reducing reliability
Solution Approach 1:
The adjustment device is designed to operate autonomously using the vehicle's existing braking force. The threaded element converts the axial movement during braking into rotational movement, which automatically adjusts the brake pad position through the screw connection. This self-service mechanism eliminates dependency on external energy sources while maintaining automated adjustment functionality.
2Ease of operation
If adjustment components are aligned transversely to the displacement direction, then the adjustment function is achieved, but the device becomes space-consuming and bulky
Solution Approach 1:
The invention changes the orientation of the adjustment mechanism from transverse to axial alignment with the displacement direction. The threaded element is positioned in the axial direction, allowing the adjustment to occur along the same axis as the brake pad movement. This dimensional reorientation significantly reduces the space required for the adjustment device while maintaining full adjustment functionality.
Solution Approach 2:
The adjustment mechanism is merged with the existing brake housing structure. The threaded element integrates with the brake pad assembly, and the screw connection utilizes the existing movement space. This merging eliminates the need for separate transverse adjustment components, reducing overall device volume while preserving the adjustment function.
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 provides a reliable, compact disc brake adjustment system that operates independently of vehicle energy and signaling systems, ensuring consistent performance and reducing the risk of failure due to its mechanical operation and optimized design.
Implementation Method 1
a spring-loaded coupling between the threaded element and the adjusting element
Data Source
Figure 1~2
Figure 3a~3c
Figure 3d~3e
AI summary
The invention relates to a wheel brake comprising an integrated adjusting device, a pressure piston (2) which is guided in a brake housing (1a) and operates against a brake lining (4), a brake application device for actuating the pressure piston (2), and an adjusting element (10) arranged in the force flux between the brake application device and the pressure piston (2), inside the brake housing, said adjusting element being connected to the pressure piston (2) in a screwed (11) manner. Said wheel brake is also provided with a screw thread element (21) which, after following a pre-determined feed path, absorbs or stores the subsequent feed path in a rotation, and transmits or transfers the same to the adjusting element (10) during the return movement. In this way, the adjusting element (10) rotates in relation to the pressure piston (2), and the pressure piston (2) is displaced in relation to the adjusting element (10) by means of the screw connection (11). The inventive wheel brake also comprises another screw thread element (22) which is screwed to the screw thread element (21) and is arranged in the brake housing (Ia) in such a way that it can be displaced between a first end abutment (28) and a second end abutment (29), and a spring-loaded coupling (30, 31) located between the screw thread element (21) and the adjusting element (10).