1 product advantages
2 product parameters
3 material and heat treatment
4 installation steps
5 surface hardening
Product advantage editor
It is compact structure, little return clearance, high accuracy, long service lifestyle, rated output torque may do a lot.But it’s a little more costly.Planetary reduction drive is generally used in limited space when the necessity for an increased torque, that is, small volume large torque, and its reliability and life are much better than EP Planetary reduction drive.Spur Planetary reduction drive can be used for low current consumption, low noise and high efficiency and low cost applications.Planetary reduction drive is characterized by small size, huge output torque, high transmission efficiency, so long as there are these requirements can be used
Product parameter editing
Full load efficiency: transmission efficiency of of Planetary decrease drive under optimum load (result torque of fault quit).
Working lifestyle: the cumulative working time of Planetary decrease drive at rated load and rated input speed.
Rated torque: it’s the torque that the ranked life allows for long term time.When the output speed is 100 r/min, the life of Planetary reduction drive is the average life, above this value, the average life of Planetary reduction drive will be reduced.Planetary reduction drive fails when the output torque exceeds twice.
Edit material and heat treatment
The weight of the Planetary reduction servo drive planetary gear transmission device is normally proportional to the weight of the gear, and the weight of the gear includes a great relationship with the material and heat therapy hardness.For instance, at the same power, the weight of the carburized hardened equipment will be about 1/3 of the weight of the tempered equipment.Therefore, according to the structural characteristics of Planetary reduction drive and the load nature of gears, hardtooth surface gears should be widely used.There are numerous heat treatment solutions to obtain gear with hard tooth surface, such as for example surface quenching, overall quenching, carburizing quenching, nitriding, etc., that ought to be selected based on the characteristics of Planetary reduction drive.
Planetary reduction drive
In Planetary reduction drive family, the Planetary reduction drive with its small size, high transmitting efficiency, wide reduction range, high precision many advantages, and is trusted in servo, stepping, dc and additional transmitting systems.Its function is in the premise of ensuring precision tranny, mainly used to lessen the rotation quickness and increase torque and reduce the load/engine rotational inertia ratio.To be able to help the majority of users to make good usage of the Planetary reduction drive, this paper analyzes the causes of Planetary reduction drive and the drive motor shaft breaking, and introduces at length how to properly install the Planetary reduction drive.
Appropriate installation, use and maintenance of of Planetary reduction drive is definitely an important link to ensure the standard operation of mechanical equipment.As a result, when you install the Planetary reduction drive, make sure you make certain to strictly follow the next installation related matters, cautiously assemble and use.
The first step is to confirm whether the motor and Planetary reduction drive are intact before installation, and strictly check if the size of each part linked with the electric motor and Planetary reduction drive matches, this is actually the size of the positioning boss, input shaft and Planetary reduction drive groove of the motor and matching tolerance.
The next step is to unscrew the screw on the outer dustproof hole of Planetary reduction drive flange, modify the clamping ring of PCS system to align the side hole with the dustproof hole, insert the inner hexagon to tighten.After that, take away the motor shaft keys.
Surface hardening editing
Common surface quenching methods are high-frequency quenching (for small gears) and flame quenching (for large gears).The surface hardened layer is most effective when it contains the bottom of the tooth root.The normal material for surface quenching is steel whose mass fraction of carbon is about 0.35%~0.5%. The hardness of tooth surface area can reach 45~55HRC.
Connection setting between of Planetary decrease drive and servo engine: holding mode – result shaft of servo engine extends into of Planetary decrease drive, servo electric motor and Planetary reduction drive are linked by flange. There is a deformable hoop in Planetary decrease drive. By operating the locking screw on Planetary reduction drive, the hoop can tighten the axis of the servo electric motor (the author includes a 0.75KW servo motor with this connection). Therefore for this connection setting, servo motors do not require keyway (of training course, keyway can also be, but purchasing keyway servo motors needs Money and delivery time are longer yo @ @). A kind of
Connecting mode of_of Planetary reduction drive and servo engine: Connecting through exterior coupling. This connection mode uses exterior coupling, so it needs servo electrical and keyway. External coupling may also use flexible coupling (flexible shaft) – gentle shaft drive power generally does not exceed 5.5KW, speed can reach 20000 rpm. A kind of
Generally speaking, the servo motors without brakes and keyways will be the many used and the Ever-Power is the largest. Consequently, to order the servo motors with brakes and keyways, the delivery period is definitely longer, about four weeks.
Planetary reduction drive in the use of the process you will see some noise, the emergence of the noise, how to deal with it?
Planetary reduction drive
The noise of Planetary reduction drive is mainly caused by the friction, vibration and collision of the transmission gears. How exactly to successfully reduce and decrease the noise to make it more in line with the requirements of environmental protection is also a key research topic at home and overseas.Reducing the apparatus transmission noise of Planetary reduction drive has become a significant research subject in the industry. Many scholars at home and abroad regard the change of equipment tooth engagement stiffness in gear transmission as the primary factor of gear powerful load, vibration and sound.By modifying the shape, the powerful load and velocity fluctuation are minimized to reduce the noise.This method has became more effective in practice.But with this method, the process needs to have shape modification equipment, the majority of small factories often can’t be implemented.
Planetary reduction drive is certainly a kind of of Planetary reduction drive, what’s the transmission structure of planetary gear?Let’s have a look.
A planetary gear includes a sunlight wheel, a planetary wheel, and a gear ring, wherein the planetary wheel is supported by a set axis of the planetary frame, allowing the planetary wheel to rotate on the assisting axis.The planetary wheel, the sun wheel and the gear ring are in continuous meshing state.
Located in the center of the planetary gear transmission mechanism may be the sun wheel, the sun wheel and the earth wheel frequently engage, two external equipment meshing rotation direction is certainly opposite.Just as the sun is at the center of the solar program, the solar wheel is known as because of its location.Gear ring is the internal gear, it and the planet wheel often meshing, may be the inner tooth and the external gear meshing, the rotation direction between your two is the same.The amount of planetary gear depends on the design load of the Planetary reduction drive, usually three or four, the more the number of bear the load is greater.
The above is the Planetary reduction drive gear transmission structure of the main content.
Planetary speed of Planetary reduction drive can be a kind of speed of Planetary reduction drive, after that, the planetary speed of Planetary reduction drive in the process of using the cause of the shaft break what?Let’s take a look.
1. The wrong type selection causes insufficient result torque of the Planetary reduction drive.
Some users in the model selection, mistakenly provided that the selected rated result torque Planetary reduction drive to meet the work requirements could be, in fact, it is not, one is the rated result torque of the electric motor rated output torque instances deceleration ratio, the value obtained in principle should be less than the merchandise sample to provide similar Planetary decrease drive rated output torque.The other is to consider the overload capacity of the drive engine and the maximum operating torque required in practice.
2. In the process of acceleration and deceleration, the instantaneous torque borne by the output shaft of the Planetary decrease drive exceeds 2 times of its rated output torque, and such acceleration and deceleration can be too frequent, that may eventually make Planetary decrease drive break the shaft.
Theoretically, the maximum operating torque required simply by the user must be significantly less than 2 times the rated output torque of the Planetary reduction drive, especially in some applications must strictly adhere to this criterion.This is simply not and then protect the Planetary reduction drive, but also to prevent the output shaft of Planetary reduction drive from being twisted off.The main reason is that, if there is a problem in equipment installation, the output shaft of the Planetary reduction drive and its own load are stuck, the overload capacity of the driving motor will still make it constantly boost the output force, which might cause the force of the output bearing of the Planetary reduction drive to exceed its rated output torque 2 times and thus twist the output shaft of the Planetary reduction drive.
Precision planetary decrease drive
There are two main types according to the output direction: directly type and correct angle type; Planetary equipment systems are accustomed to perform speed reduction due to large torque. to predict gear noise from a rear wheel drive automatic transmission.
There are generally three types based on the number of stages: one-stage deceleration (generally significantly less than 10:1), two-stage deceleration (generally higher than 10:1 and significantly less than or equal to 100:1), and three-stage deceleration (large reduction ratio is 100) :1, the general division principle is higher than 100:1);
Based on the purpose: military and civilian;Based on the operating environment: regular environment, low temperature environment, clean space environment and vacuum environment;
Our speed of Planetary reduction drive planetary gear for heavy-duty applications, including; conveyers, cranes, crawlers, and excavators. With the schlumpf mountain drive you get additional suprisingly low gears which enable you proceed climb the many extreme torque Gears: 1:1 and 2.5:1 reduction gear ratio.
Planetary gear reduction drive
The first step is to confirm whether the electric motor and Planetary reduction drive are in good condition before installation, and strictly check whether the size of every part connected with the electric motor and Planetary reduction drive is matched. Here are the size and coordinating tolerance of the positioning boss, insight shaft and Planetary reduction drive groove of the electric motor.
Step two 2: unscrew the screw on the external dustproof hole of of Planetary decrease drive flange, change the clamping band of PCS system to align the side hole with the dustproof hole, insert the internal hexagon to tighten.After that, take away the motor shaft keys.
The 3rd step is to connect the electric motor with Planetary reduction drive naturally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the engine must be constant when connected, and the outer flange of the two should be parallel.If the concentricity is not consistent, the motor shaft will be broken or of Planetary reduction drive gear wear.
In addition, in the installation, usually do not use hammer and various other blows, avoid the axial force or radial force an excessive amount of damage to the bearing or equipment.Make sure to tighten the installation bolt prior to tightening the power bolt.Before installation, wipe aside the anti-rust oil of motor input shaft, positioning boss and connecting component of of Planetary reduction drive with gasoline or zinc-sodium water.Its purpose is to make sure tight connection and flexibility of operation, and stop unnecessary wear and tear.
Planetary reduction drivePlanetary reduction drive
Prior to the motor and Planetary reduction drive are connected, the motor shaft keyway ought to be perpendicular to the tightening bolt.To make sure a uniform force, first screw the set up bolts at any kind of diagonal position, but do not screw tight, then screw the set up bolts at the other two diagonal positions, and lastly screw the four set up bolts one by one.Finally, tighten the force bolt.All tightening bolts shall be fixed and checked by the torque plate hand according to the indicated torque data.
Right installation between of Planetary reduction drive and mechanical apparatus is the same as appropriate installation between of Planetary reduction drive and drive motor.The main element is to ensure that the output shaft of Planetary reduction drive and the drive portion of the shaft concentricity.
servo motor of Planetary reduction drive Planetary reduction drive of Planetary reduction drive rated input increase to 18000 RPM (about of Planetary reduction drive itself size, the greater the speed of Planetary reduction drive, the smaller the rated input rate) above, industrial-grade servo motor of Planetary reduction drive output torque is normally only 2000 nm, special large torque servo motor of Planetary reduction drive can do more than 10000 nm. Functioning temperature in 25 ℃ to 100 ℃ roughly, by changing the grease can change its operating temperature.Planetary reduction drive: the main transmission structure is: planetary wheel, solar wheel, outer gear ring.Weighed against various other reduction gear, servo engine reduction gear has high rigidity, high precision (single stage can achieve less than 1 point),(double stage can achieve less than 3 factors), high transmission performance (single stage in 95-99%), high torque/volume ratio, life maintenance free features.Due to these characteristics, servo electric motor of Planetary reduction drive is mostly installed in the stepper motor and servo electric motor or brushless engine, used to lessen the speed, enhance the torque, matching inertia.Ranked input speed of servo motor of Planetary reduction drive can are as long as 18000rpm(related to the size of Planetary reduction drive itself.
1 product advantages