E-type Positioning Pin Overview
The E-type positioning pin is an innovative mechanical fastener, uniquely characterized by its cross-section that mirrors the letter 'E'. This versatile component excels in providing quick positioning, secure connection, and prevention of loosening for equipment parts. It is particularly adept in environments prone to frequent vibrations or requiring repeated assembly and disassembly. Below, a comprehensive description is provided:
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1. Fundamental Definition
The E-shaped positioning pin derives its name from its distinctive 'E'-like cross-section, comprising a robust pin body and an adaptive elastic opening. By skillfully deforming when inserted into a hole, it utilizes tension for steadfast fixation, achieving unparalleled positioning and anti-loosening. In industries such as mining and material handling, these pins are increasingly replacing traditional bolts, adeptly addressing corrosion and cumbersome disassembly challenges.
Structural Highlights
1. Ingenious Elastic Opening Design:
Strategically positioned elastic grooves on one or both sides of the pin body deform under pressure. This creates a resilient tension that snugly adheres to the hole walls, effectively preventing any loosening.
Select models feature a tail that can be elegantly bent to form a mechanical lock, further enhancing vibration resistance.
2. Superior Wear-Resistant Materials:
Carbon Steel (e.g., 45# Steel): Post-quenching, it achieves a commendable hardness of HRC36-48, ideal for a wide range of industrial applications.
Alloy Steel: Through meticulous heat treatment, it attains a hardness of HRC45-55, rendering it capable of enduring high loads and significant wear.
• Tool Steel: Boasting an impressive hardness of HRC60-63, it finds its niche in precision machinery and mold production. Stainless Steel: Offers remarkable corrosion resistance, making it perfect for harsh environments.
3. Extensive Specification Variety:
Spanning a nominal diameter range of M16-M20 (e.g., 16163, 16200), the length is customizable to suit specific needs. Surface treatments like galvanizing and phosphating enhance its corrosion resistance and longevity.
Surface treatments such as galvanizing and phosphating are employed to augment corrosion resistance and extend service life.
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3. Distinctive Advantages
Effortless Installation: Can be swiftly set in place through simple hammering or pressing, eliminating the need for bolts or nuts, and dramatically boosting assembly efficiency.
Anti-vibration Loosening: The elastically engineered structure absorbs vibrational energy, surpassing traditional bolts' performance by preventing loosening over extended periods of vibration.
• Reusability: Retains its elastic properties following disassembly, supporting multiple installations without sustaining damage.
4. Ideal Application Scenarios
1. Mining and Material Handling Equipment:
Serves as replacements for support legs and intermediate frames in traditional bolted belt conveyors, effectively tackling corrosion and disassembly issues.
2. Precision Mechanical Manufacturing:
Ensures high-precision positioning for molds and precision machinery. Constructed from tool steel, the pin body withstands high loads efficiently.
3. Railway Transit and Automotive Applications:
Facilitates the connection of components like chassis and wheels that require frequent maintenance, offering a perfect balance between convenience and reliability.
5. Installation Guidelines and Considerations
Aperture Compatibility: The pin body's diameter must align perfectly with the pin hole. An overly tight fit can cause deformation, while a loose fit compromises fixation.
Installation Technique: A gentle tap with a rubber hammer is recommended to avoid damaging the elastic grooves with metal tools.
Routine Inspection: In high-vibration environments, it's crucial to regularly inspect the pin body for deformation or wear, ensuring timely replacements as needed.
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