Internal structure of common right angle shaft reducers
This type of reducer is generally more common in the design and selection of non-standard automation equipment. Examples of models include the S series, K series, and W series right angle shaft reduction motors of SEW reducers.

The reducer is mainly composed of transmission components (gears or worms), shafts, bearings, housings, and their accessories. Its basic structure consists of three main parts: (1) gear, shaft, and bearing combination; (2) Box body; (3) Gearbox accessories.

The principle of mechanical gearbox: You can briefly understand the following.

The mechanical gearbox mainly applies the principle of gear transmission to reduce speed. Simply put, there are multiple sets of gear pairs with different transmission ratios in the gearbox, and the shifting behavior of the car during driving is achieved by manipulating the mechanism to make the different gear pairs in the gearbox work. At low speeds, let the gear pair with a larger transmission ratio work; At high speeds, let the gear pair with a smaller transmission ratio work.

The mortar mixing box of the shield tunneling machine can also use this type of reducer, paying attention to the model and lubrication method used. Usually used diagonally, with lubrication accessories added externally to ensure lubrication.

Working principle: Utilizing the meshing relationship between helical gears and worm gears to achieve speed and torque conversion. When the input shaft rotates, the high-speed rotation of the input shaft is converted into low-speed rotation of the helical gear through the meshing of the helical gear. Then, the worm gear meshes with the helical gear, converting the low-speed rotation of the helical gear into high torque rotation of the output shaft.

Model and Parameters

Common models: including S37, S47, 257, S67, S77, S87, S97, SA37, SA47, SA57, etc.

Parameter range: The motor power is generally between 0.12KW-22KW, the input speed is 710-1400RPM, the gearbox torque is 3.5-4000N/M, the gearbox ratio can reach 1-24000, and the output speed range is 0.8-4000RPM1.

Performance characteristics

High transmission efficiency: The combination of helical gears and worm gears for transmission is more efficient than reducers that only use worm gears. The efficiency of a single machine reducer can reach up to 96%.

Compact structure: combination of helical gear and worm gear, vertical output, small space occupation, suitable for installation in situations with limited space.

High bearing capacity: The key components are made of high wear-resistant materials and undergo special heat treatment. The reinforced high rigidity cast iron box is used, and the hard tooth surface gear is made of high-quality alloy steel. The surface is carburized, quenched and hardened, and finely ground to ensure smooth transmission, low noise, high bearing capacity, low temperature rise, and long service life of the reducer.

There are various installation forms: base type, flange type, small flange type, and torsion arm type, with solid shaft and hollow shaft output. It can be installed with any foot, B5 flange or B4 flange, and can adapt to different installation environments.

High transmission accuracy: Especially suitable for working in frequent starting situations, it can connect various reducers and configure various types of motor drives, and can be installed in the 90 degree transmission operation position 1.

Good sealing performance: Multiple sealing structures are used to prevent oil leakage and have strong adaptability to the working environment.

Application Area 6

Lifting machinery: such as cranes, hoists, etc., used to lift and transport heavy objects, providing stable output torque.

Conveyor equipment: including assembly line conveyor belts, bucket elevators, conveyor chains, etc., to achieve continuous conveying of materials.

Steel industry: applied to equipment such as rolling mills, straightening machines, cutting machines, etc., to control the processing speed and force of metal materials.

Construction machinery, such as concrete mixers, concrete pump trucks, lifting equipment, etc., meet the requirements of high torque and stable output.

Food and beverage industry: mechanical equipment such as packaging machines, sealing machines, conveyor belts, etc. used on production lines.

Printing machinery: such as printing machines, folding machines, locksmith machines, etc., providing necessary power and speed control.

Paper industry: used on equipment in pulp manufacturing, paper printing, cutting, and packaging processes.

Petrochemical industry: used for equipment such as pumps, compressors, mixers, etc., as part of the transmission system, providing high efficiency and stable output.

Wind power generation: in the wind turbine generator set, adjust the speed of the wind wheel to adapt to different wind speed conditions.

Environmental protection and sanitation: such as garbage disposal equipment, cleaning vehicles, green spraying vehicles, etc., provide appropriate power and speed.