Views: 3 Author: Site Editor Publish Time: 2025-06-23 Origin: Site
A passenger hoist rack is a toothed metal strip (usually made of high-strength steel) attached to the mast sections of a construction hoist. It engages with a pinion gear mounted on the hoist carriage, converting rotational motion into linear movement. This mechanism allows the hoist cabin to travel vertically along the mast, providing a stable and secure platform for workers and equipment.
Rack Material and Construction
High-Strength Steel: Racks are manufactured from durable, wear-resistant steel to withstand heavy loads and continuous operation.
Modular Design: Racks are often designed in modular sections for easy installation, replacement, and maintenance.
Tooth Profile and Pitch
The teeth of the rack are precision-engineered to ensure smooth engagement with the pinion gear, minimizing noise, vibration, and wear.
Standardized tooth pitches (e.g., 8 mm or 10 mm) ensure compatibility with hoist systems from different manufacturers.
Corrosion Protection
Racks may be galvanized or coated with anti-corrosion treatments to extend lifespan, especially in harsh environmental conditions.
The passenger hoist rack operates on the rack-and-pinion principle:
The pinion gear, driven by an electric motor, rotates and meshes with the teeth of the rack.
This interaction converts the motor’s rotational motion into linear motion, causing the hoist carriage to move up or down the mast.
Safety mechanisms, such as anti-fall devices and overload sensors, work in conjunction with the rack-and-pinion system to prevent accidents.
Precision and Stability: Ensures smooth, jerk-free movement, enhancing passenger comfort and safety.
Durability: Resists wear and tear, reducing maintenance costs and downtime.
Compatibility: Designed to meet international standards (e.g., EN 12158, ISO) for seamless integration with various hoist models.
Scalability: Modular racks allow for easy extension of hoist height as construction progresses.
To ensure optimal performance and safety:
Regular Inspections: Check for tooth wear, corrosion, or misalignment.
Lubrication: Apply appropriate lubricants to reduce friction and extend component life.
Replacement: Replace worn or damaged racks promptly to prevent operational failures.
Compliance: Adhere to manufacturer guidelines and local safety regulations.
YONGMAO, a leading manufacturer of construction hoists, emphasizes quality and innovation in its passenger hoist racks:
Precision Engineering: Racks are manufactured using advanced CNC machining for consistent tooth profiles.
Enhanced Safety Features: Integrated with anti-drop devices and overload protection systems.
Global Certifications: Compliant with EN, ISO, and other international standards.
