Planetary gearheads can be mounted directly onto AC and DC servo motors and are widely used in industrial applications with a medium degree of precision. Such as: printing machine tools, flame cutting, laser cutting, CNC machine tools, tool machinery, food packaging, automation industry . In the aerospace, semiconductor equipment, medical equipment, robots, robots, communications equipment, pharmaceutical equipment, printing equipment, packaging machinery, textile machinery, CNC machine tools, CNC bending machine, parking equipment, measuring equipment, workhorses, precision monitoring systems, the vehicle industry, automated control systems and other industries.
Gearboxes play a central role in the national economy and around, it is used between servo motors, stepper motors and loads, by reducing the speed to improve the torque, matching the inertia.
There are many types of reducer, the current market commonly used reducer: cycloidal pinwheel reducer, planetary gear reducer, worm gear reducer, gear reducer, etc., of which the planetary gear reducer due to the high precision, maintenance-free, etc. more and more widely used, but the price is also more expensive; Songwen electromechanical is now about the selection of planetary gear reducer and use of the precautions to be shared with you.
Advantages of planetary gear reducer:
1) small size
2) high precision, general clearance can be achieved below 10 arc minutes, 1 revolution of 360 degrees, 1 degree of 60 arc minutes
3) high efficiency, the efficiency of more than 95%
4) high output torque
5) smooth operation and low noise, generally below 65 decibels. dB or less; applicable to screen printing equipment, cutting and welding equipment, packaging machinery, printing machinery, industrial robots, semiconductor equipment, lithium equipment, medical equipment, testing machines and a variety of non-standard equipment and other precision automation machinery and equipment.
How to select a planetary gearhead:
1) First of all, you should choose a planetary gearhead that matches the mounting flange of the motor, the motors are classified according to the mounting flange, for example: servo motors are divided into the 40 series, 60 series, 80 series, 110 series, 130 series, 150 series, 180 series, etc.; stepping motors are divided into 42 series, 57 series, 86 series, 110 series, 130 series, etc. Planetary gearheads are also based on the mounting flange to determine the model, so 400W60 series servo motors or 57 stepper motors are generally equipped with 60 series of planetary gearheads; 750W80 series servo motors or 86 stepper motors are generally equipped with 80 series of planetary gearheads.
2) Determine the reduction ratio: the specific reduction ratio is the equipment manufacturers according to their own equipment requirements to determine. At present, the planetary gear reducer is generally divided into 3 levels, there are manufacturers only 2 levels, 1 level of deceleration is generally below 20; 2 levels of deceleration between 20-100, 3 levels of deceleration in more than 100, the higher the number of levels, the more expensive, the larger the gap.
3) Determine the input and output form of the reducer: input, hole input and shaft input; output, shaft output, hole output, flange output, etc.
4) the shape of the reducer: there is a round reducer, there is a square reducer, due to the square rated torque than the round, and the production process is more complex than the round and other reasons, the square reducer is more expensive than the round!
Note: If you still don't know how to select the type, directly tell the sales engineer the type of motor, the required reduction ratio, the input and output forms, and whether you need a round or square one. Is there any requirement for the output end of the reducer? If there is no special requirements are generally done according to the manufacturer's standards
Planetary reducer notes:
1) Rated torque: the torque required by the load can not exceed the rated torque of the reducer, for example: 400W servomotor rated torque of 1.3NM, the use of gear ratio of 100:1 reducer, then it should be 1.3NM * 100 = 130NM of torque, but the 400W servo motor rated torque of 1.3NM, using 100:1 reducer, then 1.3NM * 100 = 130NM of torque. 130NM of torque, but 400W corresponding to the reducer itself has a rated torque of only 50NM or so, so the maximum can only be calculated according to the torque of 50NM, the load can not be more than 50NM
2) gap: because it is a mechanical transmission, so the gap is sure to exist, so be sure to understand the gap of the reducer, calculate is not in line with the requirements of the equipment, some foreign manufacturers Can do 3 arc minutes below
3) noise: planetary reducer is generally in the 60-65 dB or so
Note: some customers for the first time, and will not calculate the torque, inertia, which will lead to a lot of unnecessary trouble, so the initial selection is very necessary, choose a big waste, choose a small easy to damage, exactly how to choose a good one? This is related to your load is what structure? Is it a ball screw, rack and pinion structure or pulley drive? This all needs to be calculated and practiced.
Planetary gear reducer principle is a power transmission mechanism, the use of gears of the speed converter, the number of rotations of the motor will be decelerated to the desired number of rotations, and get a larger torque mechanism.
Planetary gear reducer principle is generally used for low speed and high torque transmission equipment, the motor. Internal combustion engine or other high-speed power through the reducer's input shaft of the number of teeth of the gear mesh output shaft of the large gear to achieve the purpose of deceleration, ordinary reducer will also have a few pairs of the same principle of gears to achieve the desired effect of deceleration, the size of the gear teeth of the ratio, is the transmission ratio. Reduction gears are generally used for low-speed, high-torque transmission equipment, the motor. Internal combustion engine or other high-speed power through the reducer's input shaft of the number of teeth of the gear mesh output shaft of the large gear to achieve the purpose of deceleration, ordinary reducer will have a few pairs of the same principle of gears to achieve the desired effect of deceleration, the number of teeth of the gears of large and small ratio is the transmission ratio.
The internal gears of the planetary reducer adopt 20CrMnTi carburizing quenching and grinding gears with the characteristics of small size, light weight, high load capacity, long service life, smooth operation, low noise, high output torque, large speed ratio, high efficiency and safe performance. Both power shunt, multi-tooth meshing unique characteristics. It is a new type of reducer with wide versatility. Maximum input power up to 104kW, suitable for lifting and transportation, engineering machinery, metallurgy, mining, petrochemical, construction machinery, light industry, textile, medical equipment, instruments, automobiles, ships, weapons and aerospace and other industrial sectors, the planetary series of new varieties of WGN fixed-axis drive reducer, WN sub-mother gear drive reducer, elastic load reducer with less gear difference.