1 product advantages
2 product parameters
3 materials and heat treatment
4 installation steps
5 surface hardening
Product advantage editor
It really is compact structure, small return clearance, high precision, long service life, rated output torque may do a lot.But it’s a bit more expensive.Planetary reduction drive is generally used in limited space when the need for a higher torque, that’s, small volume large torque, and its own reliability and life are much better than EP Planetary reduction drive.Spur Planetary decrease drive can be used for low current consumption, low noise and high performance and low priced applications.Planetary reduction drive can be characterized by small size, large output torque, high transmission efficiency, so long as there are these requirements may be used
Product parameter editing
Full load efficiency: transmission efficiency of of Planetary decrease drive under optimum load (result torque of fault end).
Working existence: the cumulative working period of Planetary decrease drive in rated load and rated insight speed.
Rated torque: it is the torque that the rated life allows for long running time.When the output quickness is 100 r/min, the life of Planetary reduction drive is the average life, over and above this value, the common life of Planetary reduction drive will be reduced.Planetary reduction drive fails when the output torque exceeds twice.
Edit materials and heat treatment
The weight of the Planetary reduction servo drive planetary gear transmission device is generally proportional to the weight of the apparatus, and the weight of the gear has a great relationship with the materials and heat treatment hardness.For example, at the same power, the weight of the carburized hardened equipment will be about 1/3 of the weight of the tempered gear.Therefore, according to the structural features of Planetary reduction drive and the strain nature of gears, hardtooth surface gears should be broadly used.There are many heat treatment methods to obtain gear with hard tooth surface, such as for example surface quenching, overall quenching, carburizing quenching, nitriding, etc., that ought to be selected according to the characteristics of Planetary decrease drive.
Planetary reduction drive
In Planetary reduction drive family, the Planetary reduction drive using its little size, high transmission efficiency, wide reduction range, high precision many advantages, and is widely used in servo, stepping, dc and various other tranny systems.Its function is in the premise of ensuring precision tranny, mainly used to reduce the rotation swiftness and increase torque and reduce the load/electric motor rotational inertia ratio.To be able to help nearly all users to create good usage of the Planetary reduction drive, this paper analyzes the causes of Planetary reduction drive and the drive engine shaft breaking, and introduces at length how exactly to properly install the Planetary reduction drive.
Appropriate installation, use and maintenance of of Planetary reduction drive is an important hyperlink to ensure the normal procedure of mechanical equipment.Therefore, when you install the Planetary reduction drive, make sure you make certain to strictly follow the following installation related matters, cautiously assemble and use.
The first rung on the ladder is to confirm if the engine and Planetary reduction drive are intact before installation, and strictly check if the size of every part linked with the engine and Planetary reduction drive fits, this is actually the size of the positioning boss, input shaft and Planetary reduction drive groove of the electric motor and matching tolerance.
The second step is to unscrew the screw on the outer dustproof hole of Planetary reduction drive flange, change the clamping ring of PCS system to align the medial side hole with the dustproof hole, insert the inner hexagon to tighten.From then on, take away the motor shaft keys.
Surface hardening editing
Common surface quenching methods are high-frequency quenching (for little gears) and flame quenching (for huge gears).The surface hardened layer works best when it contains the bottom of the tooth root.The normal material for surface quenching is steel whose mass fraction of carbon is approximately 0.35%~0.5%. The hardness of tooth surface area can reach 45~55HRC.
Connection setting between of Planetary reduction drive and servo electric motor: holding mode – result shaft of servo engine extends into of Planetary reduction drive, servo electric motor and Planetary reduction drive are connected by flange. There exists a deformable hoop in Planetary reduction drive. By working 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 electric motor with this connection). Therefore for this connection setting, servo motors usually do not need keyway (of course, keyway may also be, but ordering keyway servo motors requires Money and delivery time are longer yo @ @). A kind of
Linking mode of_of Planetary decrease drive and servo motor: Connecting through external coupling. This connection mode uses exterior coupling, so it needs servo electric and keyway. External coupling may also use flexible coupling (flexible shaft) – smooth shaft drive power generally will not surpass 5.5KW, speed can reach 20000 rpm. Some sort of
In most cases, the servo motors without brakes and keyways will be the many used and the Ever-Power may be the largest. As a result, to purchase the servo motors with brakes and keyways, the delivery period is usually longer, about four weeks.
Planetary reduction drive in the use of the process you will have some noise, the emergence of the noise, how exactly to deal with it?
Planetary reduction drive
The noise of Planetary reduction drive is principally due to the friction, vibration and collision of the transmission gears. How to successfully reduce and reduce the noise to make it more in line with the requirements of environmental security is also a key research topic at home and overseas.Reducing the gear transmission noise of Planetary decrease drive has become a significant research subject in the industry. Many scholars in the home and abroad regard the change of equipment tooth engagement stiffness in equipment transmission as the primary factor of gear powerful load, vibration and sound.By modifying the form, the dynamic load and velocity fluctuation are minimized to lessen the noise.This technique has became more effective in practice.But with this method, the process will need shape modification equipment, nearly all small factories often can not be implemented.
Planetary reduction drive is definitely 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 sun wheel, a planetary wheel, and a gear band, wherein the planetary wheel is supported by a set axis of the planetary body, allowing the planetary wheel to rotate on the helping axis.The planetary wheel, the sun wheel and the apparatus ring are in constant meshing state.
Located in the center of the planetary equipment transmission mechanism may be the sun wheel, the sun wheel and the planet wheel often engage, two external gear meshing rotation direction is usually opposite.Just as the sun is at the center of the solar program, the solar wheel is named because of its location.Gear band is the internal gear, it and the planet wheel often meshing, is the inner tooth and the outer gear meshing, the rotation direction between your two may be the same.The amount of planetary gear depends on the design load of the Planetary reduction drive, usually three or four, the more the amount of bear the load is greater.
The above is the Planetary reduction drive gear transmission structure of the primary content.
Planetary speed of Planetary reduction drive is a kind of speed of Planetary reduction drive, then, the planetary speed of Planetary reduction drive along the way of using the cause of the shaft break what?Let’s have a look.
1. The incorrect type selection causes insufficient output torque of the Planetary decrease drive.
Some users in the model selection, mistakenly as long as the selected rated result torque Planetary reduction drive to meet up the work requirements can be, in fact, it is not, one is the rated output torque of the engine rated output torque situations deceleration ratio, the value obtained in principle ought to be less than the merchandise sample to supply similar Planetary decrease drive rated output torque.The other is to consider the overload capacity of the drive engine and the utmost operating torque required used.
2. Along the way of acceleration and deceleration, the instantaneous torque borne by the output shaft of the Planetary reduction drive exceeds two times of its ranked output torque, and such acceleration and deceleration can be too frequent, that will eventually make Planetary decrease drive break the shaft.
Theoretically, the utmost operating torque required by an individual must be significantly less than two times the rated output torque of the Planetary reduction drive, especially in a few applications must strictly comply with this criterion.This is not only to protect the Planetary reduction drive, but also to avoid 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 load are stuck, the overload capacity of the traveling motor will still make it constantly boost the output force, which may cause the force of the output bearing of the Planetary reduction drive to exceed its rated output torque two times and thus twist the output shaft of the Planetary reduction drive.
Precision planetary reduction drive
There are two main types based on the output direction: straight type and right angle type; Planetary equipment systems are used to perform speed reduction due to huge torque. to predict equipment noise from a rear wheel drive automated transmission.
There are generally three types according to the number of stages: one-stage deceleration (generally significantly less than 10:1), two-stage deceleration (generally higher than 10:1 and less than or add up to 100:1), and three-stage deceleration (huge reduction ratio is 100) :1, the overall division principle is greater than 100:1);
According to the purpose: military and civilian;Based on the operating environment: standard 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 gain additional suprisingly low gears which enable you move climb the the majority of extreme torque Gears: 1:1 and 2.5:1 reduction gear ratio.
Planetary gear reduction drive
The first step is to confirm if the electric motor and Planetary reduction drive are in good condition before installation, and strictly check whether the size of every part linked with the electric motor and Planetary reduction drive is matched. Here are the size and coordinating tolerance of the positioning boss, input shaft and Planetary decrease drive groove of the motor.
Step two 2: unscrew the screw on the external dustproof hole of of Planetary reduction drive flange, change the clamping ring of PCS program to align the medial side hole with the dustproof hole, insert the internal hexagon to tighten.From then on, take away the motor shaft keys.
The third step is for connecting the engine with Planetary reduction drive normally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the engine must be consistent when connected, and the external flange of both should be parallel.If the concentricity is not consistent, the electric motor shaft will be broken or of Planetary decrease drive gear wear.
In addition, in the installation, do not use hammer and various other blows, avoid the axial force or radial force an excessive amount of harm to the bearing or equipment.Make sure to tighten the mounting bolt just before tightening the power bolt.Before installation, wipe away the anti-rust oil of motor input shaft, positioning boss and connecting part of of Planetary reduction drive with gasoline or zinc-sodium water.Its purpose is to make sure tight connection and flexibility of operation, and prevent unnecessary deterioration.
Planetary reduction drivePlanetary reduction drive
Before the motor and Planetary decrease drive are connected, the motor shaft keyway ought to be perpendicular to the tightening bolt.To make sure a uniform force, initial screw the set up bolts at any kind of diagonal position, but usually do not screw restricted, then screw the installation bolts at the various other two diagonal positions, and finally screw the four installation bolts one by one.Finally, tighten the force bolt.All tightening bolts shall be fixed and examined by the torque plate hand based on the indicated torque data.
Correct installation between of Planetary reduction drive and mechanical gear is the same as appropriate installation between of Planetary reduction drive and drive engine.The key 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 speed up to 18000 RPM (about of Planetary reduction drive itself size, the higher the rate of Planetary reduction drive, the smaller the rated input quickness) above, industrial-grade servo electric motor of Planetary reduction drive output torque is normally only 2000 nm, special huge torque servo engine of Planetary reduction drive can perform more than 10000 nm. Functioning temperature in 25 ℃ to 100 ℃ roughly, by changing the grease can transform its functioning temperature.Planetary reduction drive: the primary transmission structure can be: planetary wheel, solar wheel, outer gear ring.Compared with various other reduction gear, servo engine reduction gear has high rigidity, high precision (single stage can perform less than 1 point),(double stage can achieve less than 3 factors), high transmission efficiency (single stage in 95-99%), high torque/volume ratio, life free of maintenance features.Due to these characteristics, servo electric motor of Planetary reduction drive is mainly installed in the stepper engine and servo engine or brushless electric motor, used to lessen the speed, enhance the torque, matching inertia.Ranked input speed of servo electric motor of Planetary reduction drive can reach up to 18000rpm(related to how big is Planetary reduction drive itself.
1 product advantages