Brake Cylinder Release Bolt Recess for Easier Pin Locking
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Solution Overview
Problem
The manufacturing of brake cylinders for commercial vehicles is complicated by the need for precise alignment and drilling of holes for the locking pin and nut, leading to increased assembly costs and complexity.
Innovation Solution
A brake cylinder design featuring a release bolt with a recess for the locking pin, which can be securely fastened using a press fit, simplifying the manufacturing process and reducing assembly costs by eliminating the need for precise hole alignment and drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If holes are drilled for the locking pin and nut, then the nut can be secured to the release bolt, but the manufacturing process becomes more complex and assembly costs increase
Solution Approach 1:
The invention extracts the hole-drilling operation from the manufacturing process by using a press-fit locking pin system instead. The locking pin is inserted through a simple slot in the release bolt and secured with a nut, eliminating the need for precise hole alignment and drilling operations while maintaining reliable securing of the nut to the release bolt.
Solution Approach 2:
The securing mechanism is segmented into separate components: a slot in the release bolt, a locking pin, and a nut. This segmentation allows each component to be manufactured independently with standard tolerances and assembled through simple insertion and threading operations, rather than requiring integrated hole drilling and alignment.
2Reliability
If holes are drilled for the locking pin and nut, then the nut can be secured to the release bolt, but the assembly time and precision requirements increase
Solution Approach 1:
The release bolt is pre-formed with a slot during the manufacturing process, eliminating the need for field drilling or alignment operations. The locking pin is designed to be inserted directly into this pre-prepared slot, allowing for rapid assembly without time-consuming alignment procedures.
Solution Approach 2:
The slot in the release bolt is designed to self-align and guide the locking pin during insertion. The geometry of the slot and pin work together to automatically position the components correctly, eliminating the need for external alignment tools or procedures and reducing assembly 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 design simplifies the manufacturing process, reduces assembly costs, and ensures reliable fastening of the nut to the release bolt, enhancing the ease of production and functionality of the brake cylinder.
Implementation Method 1
the locking pin is secured in the release bolt by an interference fit
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a brake cylinder comprising a housing, a piston, a pressure bolt, a compression spring, a threaded release bolt (24), a locking pin (28), and a nut (26), wherein the nut (26) is attached to the locking pin (28) on one end (30) of the release bolt (24). The release bolt (24) has a recess (36) at its end (30), for example, with a trapezoidal shape, for receiving the locking pin (28).