Description
Huning Elevator Safety Gear QJB2500/TRA24121A7 Brief Introduction
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Product Name |
Huning Elevator Safety Gear |
| Model Number | QJB2500/TRA24121A7 |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Huning Elevator Safety Gear QJB2500/TRA24121A7: Comprehensive Installation, Operation, and Maintenance Guide
The Huning Elevator Safety Gear QJB2500/TRA24121A7 represents a critical safety component in modern elevator systems, providing progressive braking action during emergency situations. As an advanced safety device manufactured by Hangzhou Huning Elevator Parts Co., Ltd., this safety gear plays a vital role in protecting passengers and equipment during overspeed conditions. Nanjing Zhuye Elevator Parts, a leading supplier of elevator components, provides this essential safety device with guaranteed authenticity and superior quality.
Product Overview and Technical Specifications
The QJB2500/TRA24121A7 safety gear is a progressive-type safety device specifically designed for high-speed elevator applications. This safety gear operates by gradually applying braking force to the elevator guide rails when activated by the overspeed governor, ensuring smooth deceleration without causing passenger discomfort or equipment damage.
The safety gear accommodates a wide range of elevator specifications, with rated speeds from 0.25 to 2.5 meters per second and permitted gross masses (P+Q) ranging from 1200 to 6000 kilograms. The device is compatible with guide rail widths of 10mm, 15.88mm, and 16mm, providing versatility for different elevator configurations. Manufactured with precision-engineered components, the QJB2500 features hardened steel clamping blocks, high-strength springs, and corrosion-resistant materials.
The safety gear has obtained CE certification and complies with international safety standards including EN81 and GB standards. The device is designed for both single and dual lift applications, making it suitable for various elevator configurations including passenger elevators, freight elevators, and service elevators.
Installation Procedure and Setup
Proper installation of the QJB2500/TRA24121A7 safety gear is crucial for elevator safety and requires professional technicians with expertise in elevator safety systems. The installation process must follow strict safety protocols and manufacturer specifications.
The installation begins with a comprehensive safety assessment, ensuring the elevator car is properly secured and all power sources are disconnected. Technicians must verify that the guide rails are clean, properly aligned, and free from any defects that could affect safety gear operation. The installation area must be cleared of debris and obstacles.
Mounting the safety gear requires precise positioning on the elevator car frame. The device must be aligned with the guide rails to ensure proper contact during activation. Installation involves securing the safety gear housing with high-tensile bolts, ensuring all mounting points are properly reinforced. The connection to the overspeed governor must be made using certified wire ropes or linkage systems, with particular attention to proper routing and protection from wear.
The safety gear must be positioned to maintain consistent clearance from the guide rails during normal operation while ensuring immediate contact during emergency activation. Technicians must verify that the governor rope connection allows for smooth operation without binding or excessive slack.
Operational Function and Performance
Once installed and calibrated, the QJB2500/TRA24121A7 safety gear provides critical protection during overspeed conditions. The progressive action ensures that braking force increases gradually as the device engages, preventing sudden stops that could cause passenger injury or equipment damage.
The safety gear operates through several key phases:
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Activation Phase: When the overspeed governor detects excessive speed, it triggers the safety gear mechanism through the governor rope or linkage system.
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Initial Engagement: The clamping blocks make initial contact with the guide rails, beginning the braking process with minimal force.
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Progressive Braking: As the elevator continues to move, the clamping mechanism increases pressure on the rails, generating additional braking force proportional to the speed and load.
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Full Engagement: The safety gear reaches maximum braking capacity, bringing the elevator to a controlled stop while maintaining passenger safety.
The progressive design ensures that the stopping distance and deceleration remain within acceptable limits, typically not exceeding 1g (9.81 m/s²) to prevent passenger injury. The device maintains its holding capacity even after engagement, preventing any movement until manually released by qualified technicians.
Maintenance Requirements and Replacement Schedule
Regular maintenance of the QJB2500/TRA24121A7 safety gear is essential for long-term reliability and safety. The recommended maintenance schedule includes monthly visual inspections, quarterly functional testing, and annual comprehensive evaluations.
Monthly inspections should focus on visual examination of the safety gear assembly for signs of wear, corrosion, or damage. Technicians should check that all mounting bolts remain properly torqued, that the governor rope connection is secure, and that no debris has accumulated in the mechanism. The guide rail contact surfaces should be inspected for scoring or unusual wear patterns.
Quarterly maintenance involves more detailed examination, including lubrication of moving parts, checking spring tension, and verifying proper clearances. The safety gear should be tested for smooth operation by manually activating the mechanism and observing proper engagement and release. All pivot points and sliding surfaces should be cleaned and lubricated with appropriate materials.
Annual maintenance requires comprehensive testing of the entire safety system, including overspeed governor operation, safety gear activation, and load testing. The safety gear must be tested under controlled conditions to verify proper engagement speed and braking performance. All components should be thoroughly cleaned, and any worn parts should be replaced immediately.
The typical replacement cycle for safety gear components varies based on usage intensity and environmental conditions. The complete safety gear assembly typically lasts 10-15 years under normal operating conditions, while individual components may require replacement more frequently:
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Clamping Blocks: Replace every 5-7 years or when wear exceeds 2mm
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Springs: Replace every 8-10 years or when tension decreases by more than 15%
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Pivot Pins and Bushings: Replace every 6-8 years or when excessive play develops
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Governor Rope: Replace every 5 years or when showing signs of wear or corrosion
Signs indicating the need for replacement include visible wear on clamping surfaces, reduced braking performance during testing, excessive play in pivot points, corrosion affecting structural integrity, and failure to meet performance requirements during annual testing.
Nanjing Zhuye Elevator Parts: Your Trusted Partner
Nanjing Zhuye Elevator Parts has established itself as a premier supplier of genuine Huning elevator safety components, offering the complete range of QJB2500 series safety gears. With extensive experience in the elevator industry, the company provides not only quality parts but also comprehensive technical support and expertise.
The company’s advantages include guaranteed authentic Huning components, competitive pricing through direct sourcing relationships, comprehensive inventory ensuring immediate availability, expert technical support for installation and troubleshooting, worldwide shipping capabilities, and comprehensive warranty coverage.
Conclusion
The Huning Elevator Safety Gear QJB2500/TRA24121A7 represents a critical safety component that demands proper installation, regular maintenance, and timely replacement. This advanced progressive safety gear provides reliable protection during overspeed conditions while ensuring passenger comfort through smooth deceleration. With Nanjing Zhuye Elevator Parts as your trusted supplier, you gain access to genuine components, expert support, and reliable service. Investing in quality safety gear and maintaining it properly is essential for elevator operators committed to passenger safety, regulatory compliance, and long-term performance. Regular attention to these critical safety components contributes significantly to preventing accidents and maintaining optimal elevator performance throughout the system’s operational lifespan.
