Lockable Stainless Steel Screw Pair for Low-Noise Bolt Manufacturing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional screw manufacturing processes face issues with loosening, noise pollution, high energy consumption, environmental pollution, and increased costs due to heavy metal rust protection, which affect industrial safety and environmental protection standards.
Innovation Solution
A lockable stainless steel screw pair with a screw rod and nut design featuring threads and single grooves on the outer walls, formed by welding stainless steel components, and a pin mechanism to prevent loosening and corrosion, reducing noise and energy consumption while using eco-friendly manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional steel bolts are manufactured using cold stamping and pressing wire rod, then the bolt head can be prefabricated, but huge impact noise is generated causing environmental pollution
Solution Approach 1:
The patent replaces the conventional cold stamping and pressing mechanical process with a welding-based manufacturing approach. The bolt head is formed by welding a steel plate to the wire rod, eliminating the need for cold stamping operations that generate impact noise. This substitution of the manufacturing mechanism directly addresses the noise pollution problem while maintaining ease of manufacture.
2Ease of manufacture
If wire rod material undergoes repeated heat treatment processes for softening and hardening, then the bolt can be easily formed, but huge energy is wasted
Solution Approach 1:
The patent extracts and eliminates the repeated heat treatment steps from the manufacturing process. By using welding to form the bolt head directly on the wire rod, the process removes the need for softening heat treatment followed by hardening heat treatment. This extraction of unnecessary process steps significantly reduces energy consumption while maintaining the formability and strength of the bolt.
3Reliability
If zinc-chromium plating is applied on the screw thread surface for rust prevention, then corrosion resistance is improved, but heavy metal pollution treatment cost increases
Solution Approach 1:
The patent converts the harmful zinc-chromium plating process into a beneficial stainless steel material solution. Instead of applying toxic heavy metal coatings, the invention uses stainless steel wire rod and steel plates that inherently resist corrosion without requiring harmful plating. This transforms the problem of heavy metal pollution into a benefit of using environmentally friendly materials that provide equivalent or superior corrosion resistance.
4Adaptability or versatility
If conventional screw structures are used with separate bolt and nut, then assembly flexibility is maintained, but loosening occurs after long time due to stress strain changes
Solution Approach 1:
The patent merges the bolt and nut into a single integrated component. The bolt head is formed by welding the steel plate directly to the wire rod, creating a unified structure that eliminates the separate nut component. This merging prevents loosening that occurs with conventional separate bolt-nut assemblies subjected to stress strain changes, while the welding process maintains assembly flexibility through the integrated design.
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 effectively prevents screw loosening, reduces noise and environmental pollution, conserves energy, and lowers production costs, enhancing industrial safety and environmental sustainability.
Implementation Method 1
a screw rod with a thread and a first single groove on an outer wall, wherein the screw rod with the thread and the first single groove on the outer wall is formed by welding a first stainless steel pipe sleeve and a circular steel column rod inserted in the first stainless steel pipe sleeve
Data Source
AI summary
The two lockable stainless and lossless screw pairs at two ends of the bolt are provided both to avoid screw pairs stained or destroyed by strain force from loading and to decrease the cost because of energy consumption in traditional process of bolt or its cost from environmental pollution.