Views: 0 Author: Site Editor Publish Time: 2025-07-21 Origin: Site
Efficient Transmission
Industrial gearboxes adopt precision meshing gears, with high transmission efficiency (usually over 95%), which can minimize energy loss and improve the overall efficiency of mechanical equipment.
Strong Load-Bearing Capacity
They are typically made of high-strength alloy steel or hardened gears, enabling them to withstand high torque and heavy loads, suitable for applications with heavy loads and impact loads.
Compact Structure and Strong Adaptability
With flexible design, gearboxes can be constructed in various forms such as parallel shafts, right-angle shafts, and planetary gears according to different transmission requirements, meeting installation conditions with limited space.
High Reliability
Modern gearboxes use advanced lubrication systems (e.g., forced lubrication, splash lubrication) and sealing technologies to reduce wear, extend service life, and ensure long-term stable operation.
Wide Speed Regulation Range
Through multi-stage gear transmission, a wide range of speed ratio adjustments can be achieved, adapting to equipment with different speed requirements, such as high-speed processing equipment or low-speed heavy-duty machinery.
Parallel Shaft Gearbox
Characteristics: Input and output shafts are arranged in parallel, with a compact structure and high transmission efficiency.
Applications: Motor reducers, conveying equipment, pump machinery, etc.
Right-Angle Shaft Gearbox (Bevel Gearbox)
Characteristics: Input and output shafts are at a 90° angle, usually using spiral bevel gears or straight bevel gears.
Applications: Construction machinery, mixing equipment, food processing machinery, etc.
Planetary Gearbox
Characteristics: Adopting a planetary gear train (sun gear, planet gears, ring gear), it features high torque density, high precision, and low backlash.
Applications: Robots, wind power gearboxes, precision machine tools, etc.
Worm Gearbox
Characteristics: Input and output shafts are vertically staggered, with the worm driving the worm gear. It has a self-locking function but relatively low transmission efficiency.
Applications: Cranes, elevators, packaging machinery, etc.
Spur Gearbox
Characteristics: Gear teeth are parallel to the axis, with a simple structure and low cost, but relatively high noise.
Applications: General industrial equipment, low-load occasions.
Helical Gearbox
Characteristics: Gear teeth are at a certain angle to the axis, ensuring smooth meshing, low noise, and high load-bearing capacity.
Applications: High-speed transmission equipment, heavy-duty machinery (e.g., metallurgical machinery).
Herringbone Gearbox
Characteristics: Composed of two symmetric helical gears, axial forces cancel each other out, suitable for high-power transmission.
Applications: Marine propulsion systems, large rolling mills, etc.
Bevel Gearbox
Characteristics: Used for changing transmission direction (right-angle transmission), including straight bevel gears and spiral bevel gears.
Applications: Automotive differentials, construction machinery, etc.
Planetary Gearbox
Characteristics: Multiple planet gears rotate around the sun gear, with a compact structure and high load-bearing capacity.
Applications: Wind power gearboxes, automation equipment, etc.
4. Classified by Lubrication Method
2. Basic Design Process
Shaft and Bearing Design
Basic Knowledge of Industrial Gearbox Design
When designing a gearbox, the following factors should be comprehensively considered:
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Shaft diameter calculation: Conduct strength analysis based on torque and bending moment.
Module (m): A critical parameter determining gear size, which must meet strength requirements.
Number of teeth (Z): Affecting the transmission ratio, generally an integer to avoid interference.
Pressure angle (α): The standard pressure angle is 20°, while 25° is optional for high loads.
Helix angle (β): An important parameter for helical gears, usually 8°~30°.
Face width coefficient (ψ): Affecting gear strength, generally 0.3~0.6.