Utility Vehicle Disk Brake Slotted Guide Design
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Solution Overview
Problem
The manufacture of disc brakes with a fixed and floating bearing concept is relatively expensive due to the need for precise drilling of bores to accommodate guide rails, making the existing disc brake production costly.
Innovation Solution
Designing the floating bearing as a link guide with a slideway extending in the displacement direction of the brake caliper, where the first guide element is arranged on the brake caliper and the slideway is on the brake carrier, allowing for a simplified structure and cost-effective manufacturing by using a slotted guide instead of a sliding bush, with the fixed bearing handling guidance and wear path and the floating bearing providing vibration stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed bearing and floating bearing design is used for mounting the brake caliper, then the brake caliper can be properly guided and stabilized during operation, but the manufacturing cost increases due to the need for precise drilling of bores to accommodate guide rails
Solution Approach 1:
The bearing function is segmented into two distinct components: a fixed bearing integrated into the brake carrier that provides guidance, and a floating bearing in the form of a cam guide with sliding track that provides stabilization. This segmentation allows each component to be manufactured separately with simpler processes, avoiding the need for precise bore drilling through the entire caliper assembly.
Solution Approach 2:
A guide element acts as an intermediary component between the fixed bearing and floating bearing. This guide element engages with both the fixed bearing's guide rail and the floating bearing's sliding track, mediating the interaction between the two bearing systems and enabling the caliper to move smoothly while maintaining proper alignment and stability.
2Manufacturing precision
If precise bore drilling is performed to accommodate guide rails in the brake caliper, then the fixed and floating bearings can be properly positioned, but the manufacturing complexity and cost increase
Solution Approach 1:
Instead of drilling precise bores through the brake caliper to accommodate guide rails, the design inverts the approach by integrating the fixed bearing into the brake carrier and using a floating cam guide on the caliper side. This inversion eliminates the need for complex bore drilling operations while maintaining precise bearing positioning through the cam guide's sliding track mechanism.
Solution Approach 2:
The floating bearing is designed as a simpler, more economical cam guide with sliding track that can be manufactured using less expensive processes. While the fixed bearing requires precise integration into the brake carrier, the floating bearing's simpler construction allows for cost-effective manufacturing, effectively replacing the need for expensive precise bore drilling in the caliper.
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 approach simplifies the structure of the floating bearing, reduces manufacturing costs, and maintains the functionality of both bearing types, enabling efficient production while ensuring the brake caliper is properly guided and stabilized during operation.
Implementation Method 1
The sliding track has sliding surfaces (214) which are designed as parallel internal surfaces of an elongated hole (125) in which the first guide element (114) can be displaced in the direction of movement of the brake caliper (120)
Data Source
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AI summary
A utility vehicle disk brake comprises a vehicle-mounted brake mount (110) that partially surrounds a brake disk, and a brake caliper (120) that is arranged on and partially covers the brake mount (110); sliding guides allow the brake caliper (120) to slide relative to the brake mount (110) perpendicularly to a friction surface of the brake disk; a first one of said sliding guides is designed as a fixed bearing, and a second one of said sliding guides is designed as a floating bearing, at least the floating bearing being designed as a slotted guide comprising a guideway (123) that runs in the sliding direction of the brake caliper (120) as well as a first guiding element (114) that is accommodated in the guideway (123).