Don t know what planetary reducer your motor is suitable for?

If the input and output speed and torque of the reducer meet your requirements, and the reducer meets your installation interface requirements, then the reducer is suitable for your motor.

If you don't know what kind of reducer is suitable for your own motor, you can ask the reducer manufacturer to match it for you, and then tell him that you ask about it and know that he will recommend it.

It depends on the size of your motor shaft head, and then you go to the corresponding planetary reducer, the most important thing is to see the speed and torque you need to output.

But when you don't know how to pair the motor with the reducer, you can ask the manufacturer, often according to the manufacturer, and the manufacturer will recommend a good and suitable thing to you.

The planetary reducer can be equipped with stepper motors, brushless motors, brushed motors, DC motors, coreless motors, servo motors, three-phase motors, etc.

According to the motor to choose the planetary reducer mainly includes:

1: Gear ratio. The reduction ratio of the reducer is roughly selected as the number of additional DAO speed of the electric machine divided by the final output speed.

For example, if the final output speed of the demand is 200rpm, and the additional speed of the motor is 3000rpm, then the speed ratio of the reducer is about 1:15. In the end, the unevenness of the output speed depends on the requirements of the working conditions.

2: Torque. The additional torque of the reducer is greater than or equal to the additional torque of the motor multiplied by the reduction ratio. Assuming that the additional torque of the motor is 15, then the additional torque of the selected reducer type is greater than 10*15=.

3: Accuracy. The return clearance of the reducer (backlash, void or reversal clearance) depends on the specific work requirements, generally speaking, the clearance used by the cooperative servo motor should not be greater than 20arcmin, and the single-stage deceleration can be less than or equal to 3arcmin is generally a high-end product.

4: Standard. The cross-sectional scale of the reducer is generally similar to the cross-sectional scale of the motor, and other parameters refer to the clarification of the selected brand, and the skill sample is generally marked with clear selection steps and accounting examples.

The specific type is represented differently by brand. It is usually roughly expressed in terms of output flange scale or cross-section scale.

Buckman Industrial Technology General Guidelines:

Small servo motors can be equipped with large reducers, but large motors are generally not equipped with small reducers;

The higher the rigidity of the same standard, the better the quality.

1.The planetary gear reducer consists of an internal gear ring (a) tightly bonded to the gearbox housing, and there is a sun gear driven by external power in the center of the ring gear (b) between the two has a set of planetary gear sets composed of three gears that are equally combined on the pallet (c) the planetary gears float in the period by relying on the output shaft, the internal gear ring and the sun tooth support; When the power transmission sun gear on the input side is driven, the planetary gear can be driven to rotate, and follow the trajectory of the inner gear ring to rotate along the center, and the rotation of the planet drives the output shaft connected to the pallet to output power.

2.Progression: The number of sets of planetary gears.

Because one set of planetary gears cannot meet the larger transmission ratio, sometimes 2 sets or 3 sets are needed to meet the requirements of the user's larger transmission ratio. Due to the increase in the number of planetary gears, the length of the 2nd or 3rd stage reducer will increase and the efficiency will decrease.

3.Return clearance: When the output end is fixed, and the input end rotates clockwise and counterclockwise, so that the input end produces the rated torque +-2% torque, there is a small angular displacement at the input end of the reducer, and this angular displacement is the return clearance.

Planetary reducer is a widely used transmission device, in a gear train, there is more than one gear to rotate and rotate around a certain shaft. This type of gear train is called a planetary gear train. The reducer that operates on this principle is called a planetary reducer.

How the planetary reducer works::

To put it simply, an internal gear ring in the planetary reducer is tightly combined with the gear box housing, and there is a sun gear driven by external power in the center of the ring gear, and between the sun gear and the internal gear there is a set of planetary gear sets that are divided into three gears and combined on the pallet in equal parts, and this group of planetary gears relies on the output shaft, the internal gear ring and the sun tooth support to float during the period.

When the planetary reducer is connected to the driving power supply, the planetary reducer starts to work, and when the side power drives the sun gear, the sun gear drives the planetary gear to rotate, and follows the trajectory of the inner gear ring along the center to rotate, and the rotation of the star drives the output shaft connected to the pallet to output power.

The drive motor rotates the sun gear of the precision planetary reducer, and the occlusion of the sun gear and the planetary gear promotes the planetary gear to rotate, and at the same time, because the planetary wheel has the occlusion of the annular inner gear ring on the inner wall of the planetary reducer shell on the other side, finally under the action of the rotation driving force, the planetary wheel will roll on the annular inner gear ring in the same direction as the rotation of the sun wheel, forming a "revolutionary" motion that rotates around the sun wheel.

The role of planetary reducers

1. Increase torque: The planetary reducer can amplify the torque of the motor, and the low-power motor can be selected to achieve the output of large torque.

2. Variable speed function: the planetary reducer can realize the high speed of the motor to the low speed required by the equipment, and the reduction ratio is an accurate positive integer.

3. Precise positioning: After the combination of precision planetary reducer and servo motor, the precise positioning, quantitative feeding, measurement angle and other functions of the equipment can be realized through pulse control.

The transmission structure of the planetary reducer

The transmission structure of the planetary reducer includes: planetary gear, sun gear and internal ring gear.

Working principle: an internal gear ring (a) is tightly bonded to the gearbox housing, and there is a sun gear (b) driven by external power in the center of the ring gear, and between the two there is a set of planetary gear sets composed of three gears combined on the pallet in equal parts (c) The planetary gears rely on the output shaft, the internal gear ring and the sun tooth support to float during the period;

When the power of the planetary reducer drives the sun gear on the input side, it can drive the planetary gear to rotate, and follow the trajectory of the inner gear ring to rotate along the center, and the rotation of the star drives the output shaft connected to the pallet to output power.

The working principle of the planetary reducer is that when the power of the input side drives the sun gear, it can drive the planetary gear to rotate, and follow the trajectory of the inner gear ring to rotate along the center, and the rotation of the star drives the output shaft connected to the pallet to output power 2 gear reducer gear reducer work; The difference between planetary gear reducer and cycloidal reducer, Bapman is so analyzed, the main transmission structure of planetary gear reducer is planetary gear, sun gear, outer ring gear, cycloidal pinwheel reducer, all transmission devices can be divided into three parts: input part, deceleration, output part, gear reducer has small size, transmission.

1. Planetary reducer is a widely used industrial product, which can reduce the speed of the motor and increase the output torque at the same time. Planetary reducer can be used as a supporting component in lifting, excavation, transportation, construction and other industries.

2. Working principle: an internal gear ring (a) is tightly combined on the gear box housing, and there is a sun gear (b) driven by external power in the center of the ring gear, and between the two there is a group of planetary gear sets composed of three gears that are equally combined on the pallet (c) The planetary gears rely on the output shaft, the internal tooth ring and the sun tooth support to float during the period; When the power of the planetary reducer drives the sun gear on the input side, it can drive the planetary gear to rotate, and follow the trajectory of the inner gear ring to rotate along the center, and the rotation of the star drives the output shaft connected to the pallet to output power.

It consists of an internal gear ring (a) tightly bound to the gearbox housing, a sun gear (b) driven by external power in the center of the ring gear, and a set of planetary gear sets (c) composed of three gears in equal parts on the pallet (c) which float during the period supported by the output shaft, the inner gear ring and the sun tooth; When the power of the planetary reducer drives the sun gear on the input side, it can drive the planetary gear to rotate, and follow the trajectory of the inner gear ring to rotate along the center, and the rotation of the star drives the output shaft connected to the pallet to output power.

The planetary gear is driven by the sun gear, and the inner ring gear is fixed, so that the planetary carrier will rotate, please see** for details.

Planetary reducer transmission structure: its basic transmission structure is four parts, the sun gear, the planetary gear (combined in the planetary carrier), the internal gear ring, and the motor start the sun gear in a direct connection, and the sun gear will be combined with the planetary gear carrier to drive the operation.

The principle of planetary gear deceleration consists of an internal gear ring (a) tightly bonded to the gearbox housing, a sun gear (b) driven by external power in the center of the ring gear, and a set of planetary gear sets composed of three gears in equal parts on the pallet (c) The planetary gears float during the period supported by the output shaft, the internal tooth ring and the sun tooth; When the power of the planetary reducer drives the sun gear on the input side, it can drive the planetary gear to rotate, and follow the trajectory of the inner gear ring to rotate along the center, and the rotation of the star drives the output shaft connected to the pallet to output power. (Provided by Zhaowei Electromechanical).