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 precision, long service lifestyle, rated output torque may do a lot.But it’s a little more costly.Planetary reduction drive is normally found in limited space when the necessity for a higher torque, that is, small volume large torque, and its own reliability and life are much better than EP Planetary reduction drive.Spur Planetary decrease drive is utilized for low current usage, low noise and high effectiveness and low priced applications.Planetary reduction drive is certainly characterized by small size, large output torque, high transmission efficiency, provided that there are these requirements may be used
Product parameter editing
Full load efficiency: tranny efficiency of of Planetary reduction drive under optimum load (output torque of fault stop).
Working life: the cumulative working period of Planetary reduction drive in rated load and rated insight speed.
Rated torque: it is the torque that the ranked life allows for long term time.When the output acceleration is 100 r/min, the life span 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 material 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 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 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 surface quenching, overall quenching, carburizing quenching, nitriding, etc., which should be selected based on the characteristics of Planetary decrease drive.
Planetary reduction drive
In Planetary reduction drive family, the Planetary reduction drive with its small size, high transmission 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 transmission, mainly used to lessen the rotation speed and increase torque and reduce the load/engine rotational inertia ratio.In order to help nearly all users to create good usage of the Planetary reduction drive, this paper analyzes the sources of Planetary reduction drive and the drive electric motor shaft breaking, and introduces at length how exactly to properly install the Planetary reduction drive.
Right installation, use and maintenance of of Planetary reduction drive is usually an important hyperlink to ensure the normal procedure of mechanical equipment.For that reason, when you install the Planetary reduction drive, make sure you be certain to strictly follow the following installation related matters, properly assemble and use.
The first step is to confirm whether the electric 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, here is the size of the positioning boss, input shaft and Planetary reduction drive groove of the electric 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.From then on, remove the motor shaft keys.
Surface hardening editing
Common surface area quenching methods are high-frequency quenching (for little gears) and flame quenching (for huge gears).The top hardened layer is most effective when it contains the base 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 mode between of Planetary reduction drive and servo engine: holding mode – result shaft of servo engine extends into of Planetary decrease drive, servo engine and Planetary decrease drive are linked by flange. There is a deformable hoop in Planetary reduction drive. By operating the locking screw on Planetary decrease 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 need keyway (of program, keyway can also be, but buying keyway servo motors requires Money and delivery time are longer yo @ @). A kind of
Connecting mode of_of Planetary decrease drive and servo electric motor: Connecting through exterior coupling. This connection setting uses exterior coupling, so that it needs servo electric and keyway. External coupling can also use flexible coupling (flexible shaft) – smooth shaft drive power generally will not go beyond 5.5KW, speed can reach 20000 rpm. A kind of
Generally speaking, the servo motors without brakes and keyways are the most used and the Ever-Power is the largest. Consequently, to purchase the servo motors with brakes and keyways, the delivery period is certainly longer, about 4 weeks.
Planetary reduction drive in the use of the process you will have some noise, the emergence of the noise, how 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 create it more based on the requirements of environmental safety is also an integral research topic at home and abroad.Reducing the gear transmission noise of Planetary decrease drive has become an important research subject in the market. Many scholars at home and abroad respect the change of gear tooth engagement stiffness in gear transmission as the primary factor of gear dynamic load, vibration and sound.By modifying the shape, the dynamic load and velocity fluctuation are minimized to lessen the noise.This technique has proved to be more effective used.But with this technique, the process will need shape modification equipment, nearly all small factories often can not be implemented.
Planetary reduction drive is definitely some sort of of Planetary reduction drive, what is the transmission structure of planetary gear?Let’s have a look.
A planetary gear includes a sun 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 supporting axis.The planetary wheel, the sun wheel and the gear ring are in continuous meshing state.
Located in the center of the planetary equipment transmission mechanism is the sun wheel, the sun wheel and the earth wheel often engage, two external gear meshing rotation direction can be opposite.Just as the sun is at the center of the solar program, the solar wheel is known as for its location.Gear band is the inner gear, it and the planet wheel often meshing, may be the internal tooth and the external gear meshing, the rotation direction between your two may be the same.The number of planetary gear depends upon the design load of the Planetary reduction drive, usually 3 or 4, the more the number of bear the strain is greater.
The above is the Planetary reduction drive equipment transmission structure of the main content.
Planetary speed of Planetary reduction drive is certainly some sort of speed of Planetary reduction drive, after that, the planetary speed of Planetary reduction drive along the way of using the reason for the shaft break what?Let’s take a look.
1. The wrong type selection causes insufficient result torque of the Planetary decrease 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 isn’t, one may be the rated result torque of the motor rated output torque occasions deceleration ratio, the value obtained in principle ought to be less than the merchandise sample to supply similar Planetary decrease drive rated result torque.The other is to consider the overload capacity of the drive motor and the maximum 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 this kind of acceleration and deceleration is definitely too frequent, that will eventually make Planetary reduction drive break the shaft.
Theoretically, the maximum operating torque required by an individual must be 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 simply not and then protect the Planetary reduction drive, but also to avoid the output shaft of Planetary reduction drive from being twisted off.The primary 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 generating motor will still make it constantly increase 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 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 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 less than 10:1), two-stage deceleration (generally greater than 10:1 and significantly less than or add up to 100:1), and three-stage deceleration (large reduction ratio is 100) :1, the general division principle is greater than 100:1);
Based on the purpose: military and civilian;According to the operating environment: regular environment, low temperature environment, clean room 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 very low gears which enable you proceed 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 shape before installation, and strictly check if the size of every part linked with the engine and Planetary reduction drive is matched. Here are the size and complementing tolerance of the positioning boss, input shaft and Planetary decrease drive groove of the electric motor.
Step two 2: unscrew the screw on the external dustproof hole of of Planetary reduction drive flange, adapt the clamping ring of PCS system to align the medial 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 motor with Planetary reduction drive normally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the electric motor must be constant when connected, and the outer flange of both must be parallel.If the concentricity isn’t consistent, the electric motor shaft will be broken or of Planetary decrease drive gear wear.
Furthermore, in the installation, usually do not use hammer and various other blows, prevent the axial force or radial force an excessive amount of harm to the bearing or equipment.Be sure to tighten the mounting bolt prior to tightening the drive bolt.Before installation, wipe away 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 ensure tight connection and versatility of operation, and stop unnecessary wear and tear.
Planetary reduction drivePlanetary reduction drive
Before the motor and Planetary reduction drive are linked, 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 restricted, then screw the set up bolts at the additional two diagonal positions, and lastly screw the four installation bolts one by one.Finally, tighten the force bolt.All tightening bolts shall be fixed and checked by the torque plate hand based on the indicated torque data.
Appropriate installation between of Planetary reduction drive and mechanical apparatus is equivalent to appropriate installation between of Planetary reduction drive and drive electric motor.The key is to ensure that the output shaft of Planetary reduction drive and the drive part 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 higher the swiftness of Planetary reduction drive, the smaller the rated input speed) above, industrial-grade servo motor of Planetary reduction drive output torque is generally not more than 2000 nm, special large torque servo engine of Planetary reduction drive can perform a lot more than 10000 nm. Working temperature in 25 ℃ to 100 ℃ roughly, by changing the grease can transform its working temperature.Planetary reduction drive: the primary transmission structure can be: planetary wheel, solar wheel, outer gear ring.Compared with various other reduction gear, servo motor reduction gear provides high rigidity, high accuracy (single stage can achieve less than 1 stage),(double stage can achieve less than 3 points), high transmission effectiveness (single stage in 95-99%), high torque/volume ratio, life free of maintenance features.Because of these characteristics, servo electric motor of Planetary decrease drive is mostly installed in the stepper electric motor and servo motor or brushless motor, used to lessen the speed, improve the torque, matching inertia.Ranked input speed of servo motor of Planetary reduction drive can reach up to 18000rpm(related to how big is Planetary reduction drive itself.
1 product advantages