Spring Brake Actuator Bonded Bolt Joint Without Locking Pins
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Solution Overview
Problem
Existing brake release mechanisms for spring brake actuators face durability issues due to the use of small locking pins that are prone to destruction under high operational forces, and require complex drilling and alignment processes for connection components.
Innovation Solution
A substance-to-substance bond, such as welding or gluing, is used to connect the brake release bolt and boss element, eliminating the need for locking pins and allowing for a stronger, more reliable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If smaller locking pins are used to reduce overall dimensions, then the dimensions of the spring brake actuator are reduced, but the locking pins become prone to destruction under high operational forces
Solution Approach 1:
The invention extracts and eliminates the locking pin from the system by using a substance-to-substance bond (welding or gluing) to connect the brake release bolt and boss element directly, thereby removing the component that was failing under operational forces while maintaining the reduced dimensions
Solution Approach 2:
The mechanical connection system using locking pins is replaced with a chemical/thermal bonding system (substance-to-substance bond through welding or gluing), which provides a more reliable connection that can withstand high operational forces without the dimensional constraints
2Strength
If locking pins are used to secure the interface nut, then the connection strength is sufficient, but the manufacturing process becomes complex requiring drilling and alignment
Solution Approach 1:
The invention removes the locking pin component and the associated drilling and alignment operations from the manufacturing process, replacing them with a direct substance-to-substance bond that eliminates complex manufacturing steps while maintaining connection strength
Solution Approach 2:
The substance-to-substance bond creates a self-aligning connection between the brake release bolt and boss element that does not require precise drilling and alignment operations, allowing the components to bond in their natural positions
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 enhances durability and simplifies manufacturing by ensuring a robust connection without the need for drilling and alignment, while maintaining operational effectiveness.
Implementation Method 1
A substance-to-substance bond, such as welding or gluing, is used to connect the brake release bolt and boss element
Implementation Method 2
A substance-to-substance bond, such as welding or gluing, is used to connect the brake release bolt and boss element
Data Source
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AI summary
Spring brake actuator (250) for a pneumatic braking system (210) of a vehicle (200a), in particular utility vehicle (200b), wherein the spring brake actuator (250) comprises: - a housing (50) having a circumferential portion (52) and a housing base (51) with an opening (53); a brake release bolt (111), wherein the brake release bolt (111) projects through the opening (53); and a boss element (113a) for cooperating with the brake release bolt (111); wherein the brake release bolt (111) and the boss element (113a) are bonded to each other by a substance-to-substance bond (120) at at least one bonding section (121).