1 product advantages
2 product parameters
3 material and heat treatment
4 installation steps
5 surface hardening
Product advantage editor
It really is compact structure, small return clearance, high precision, long service existence, rated output torque may do a great deal.But it’s a bit more expensive.Planetary reduction drive is generally found in limited space when the necessity for an increased torque, that is, small volume huge torque, and its reliability and life are much better than EP Planetary reduction drive.Spur Planetary reduction drive is utilized for low current intake, low noise and high efficiency and low cost applications.Planetary reduction drive can be seen as a small size, huge output torque, high transmission efficiency, so long as there are these requirements may be used
Product parameter editing
Full load efficiency: tranny efficiency of of Planetary decrease drive under optimum load (result torque of fault quit).
Working existence: the cumulative working period of Planetary decrease drive in rated load and rated input speed.
Rated torque: it’s the torque that the ranked life allows for long running time.When the output speed is 100 r/min, the life span of Planetary reduction drive may be the average life, outside of 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 normally proportional to the weight of the gear, and the weight of the apparatus includes a great relationship with the material and heat treatment hardness.For instance, at the same power, the weight of the carburized hardened gear will be about 1/3 of the weight of the tempered gear.Therefore, based on the structural characteristics of Planetary reduction drive and the strain nature of gears, hardtooth surface gears should be broadly used.There are plenty of 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 decrease drive.
Planetary reduction drive
In Planetary reduction drive family, the Planetary reduction drive with its little size, high transmission efficiency, wide reduction range, high precision many advantages, and is widely used in servo, stepping, dc and other tranny systems.Its function is in the premise of ensuring precision transmitting, mainly used to lessen the rotation speed and increase torque and reduce the load/engine rotational inertia ratio.To be able to help the majority of users to make good use of the Planetary reduction drive, this paper analyzes the sources of Planetary reduction drive and the drive motor shaft breaking, and introduces in detail how exactly to properly install the Planetary reduction drive.
Right installation, use and maintenance of of Planetary reduction drive is an important hyperlink to ensure the standard procedure of mechanical equipment.For that reason, when you install the Planetary reduction drive, make sure you be certain to strictly follow the next installation related matters, cautiously assemble and use.
The first step is to confirm if the electric motor and Planetary reduction drive are intact before installation, and strictly check if the size of every part linked with the motor and Planetary reduction drive fits, here is the size of the positioning boss, input shaft and Planetary reduction drive groove of the motor and matching tolerance.
The second step is to unscrew the screw on the outer dustproof hole of Planetary reduction drive flange, adapt 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 huge gears).The top hardened layer is most effective when it includes the bottom of the tooth root.The common 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 decrease drive and servo engine: holding mode – result shaft of servo motor extends into of Planetary decrease drive, servo electric motor and Planetary decrease drive are connected by flange. There is a deformable hoop in Planetary decrease drive. By working the locking screw on Planetary reduction drive, the hoop can tighten the axis of the servo engine (the author has a 0.75KW servo electric motor with this connection). Therefore for this connection mode, servo motors do not need keyway (of training course, keyway may also be, but buying keyway servo motors requires Money and delivery period are longer yo @ @). A kind of
Connecting mode of_of Planetary decrease drive and servo engine: Connecting through external coupling. This connection mode uses external coupling, so it needs servo electric and keyway. External coupling can also use versatile coupling (flexible shaft) – soft shaft drive power generally will not go beyond 5.5KW, speed may reach 20000 rpm. A kind of
Generally speaking, the servo motors without brakes and keyways are the most used and the Ever-Power may be the largest. For that reason, to purchase the servo motors with brakes and keyways, the delivery period is definitely longer, about 4 weeks.
Planetary reduction drive in the usage 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 effectively reduce and reduce the noise to make it more based on the requirements of environmental protection is also an integral research topic in the home and abroad.Reducing the apparatus transmission noise of Planetary decrease drive has become an important research subject in the industry. Many scholars at home and abroad regard the change of gear tooth engagement stiffness in gear transmission as the primary factor of gear dynamic load, vibration and sound.By modifying the form, the powerful load and velocity fluctuation are minimized to lessen the noise.This method has proved to be more effective used.But with this technique, the process will need shape modification equipment, the majority of small factories often can not be implemented.
Planetary reduction drive can be some sort of of Planetary reduction drive, what is the transmission structure of planetary gear?Let’s have a look.
A planetary gear carries a sunlight wheel, a planetary wheel, and a gear band, wherein the planetary wheel is supported by a fixed axis of the planetary framework, allowing the planetary wheel to rotate on the assisting axis.The planetary wheel, sunlight wheel and the apparatus ring are in constant meshing state.
Located in the center of the planetary gear transmission mechanism may be the sun wheel, the sun wheel and the planet wheel often engage, two external equipment meshing rotation direction is definitely opposite.Just as the sun is at the guts of the solar system, the solar wheel is named because of its location.Gear ring is the inner gear, it and the earth wheel often meshing, is 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 3 or 4, the more the amount of bear the load is greater.
The above may be the Planetary reduction drive equipment transmission structure of the primary content.
Planetary speed of Planetary reduction drive is a kind of speed of Planetary reduction drive, after that, the planetary speed of Planetary reduction drive in the process of using the reason for the shaft break what?Let’s take a look.
1. The incorrect type selection causes insufficient output torque of the Planetary decrease drive.
Some users in the model selection, mistakenly so long as the selected rated result torque Planetary decrease drive to meet up the work requirements can be, in fact, it is not, one may be the rated result torque of the electric motor rated output torque times deceleration ratio, the worthiness obtained in principle should be less than the merchandise sample to provide 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 in practice.
2. Along the way of acceleration and deceleration, the instantaneous torque borne by the result shaft of the Planetary decrease drive exceeds two times of its ranked output torque, and such acceleration and deceleration is definitely too frequent, that may eventually make Planetary decrease drive break the shaft.
Theoretically, the maximum operating torque required by an individual must be significantly less than two times the rated output torque of the Planetary reduction drive, especially in some applications must strictly adhere to this criterion.This is simply not only to protect the Planetary reduction drive, but also to prevent the output shaft of Planetary reduction drive from being twisted off.The primary reason is that, when 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 generating 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 therefore twist the output shaft of the Planetary reduction drive.
Precision planetary decrease drive
There are two main types according to the output direction: straight type and correct angle type; Planetary gear systems are used to perform speed decrease due to large torque. to predict equipment noise from a rear wheel drive automated transmission.
There are usually 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 add up to 100:1), and three-stage deceleration (large reduction ratio is 100) :1, the overall division principle is greater than 100:1);
According to the purpose: military and civilian;According to the operating environment: standard environment, low temperature environment, clean area 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 many extreme torque Gears: 1:1 and 2.5:1 reduction gear ratio.
Planetary gear reduction drive
The first rung on the ladder is to confirm whether the motor and Planetary reduction drive are in good shape before installation, and strictly check whether the size of each part linked with the engine and Planetary reduction drive is matched. Here are the size and complementing tolerance of the positioning boss, insight shaft and Planetary decrease 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 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 naturally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the motor 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 decrease drive gear wear.
Furthermore, in the installation, usually do not use hammer and additional blows, avoid the axial force or radial force too much harm to the bearing or equipment.Make sure to tighten the installation bolt prior to tightening the power 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 make sure tight connection and versatility of operation, and prevent unnecessary wear and tear.
Planetary reduction drivePlanetary reduction drive
Prior to the motor and Planetary decrease drive are connected, the motor shaft keyway ought to be perpendicular to the tightening bolt.To ensure a uniform force, initial screw the set up bolts at any diagonal position, but do not screw limited, then screw the set up bolts at the various other two diagonal positions, and lastly screw the four installation bolts one at a time.Finally, tighten the force bolt.All tightening bolts shall be fixed and checked by the torque plate hand based on the indicated torque data.
Right installation between of Planetary reduction drive and mechanical products is the same as correct installation between of Planetary reduction drive and drive motor.The key is to ensure that the output shaft of Planetary reduction drive and the drive part of the shaft concentricity.
servo electric 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 quickness of Planetary reduction drive, small the rated input speed) above, industrial-grade servo motor of Planetary reduction drive output torque is generally not more than 2000 nm, special huge torque servo electric motor of Planetary reduction drive can perform more than 10000 nm. Working temperature in 25 ℃ to 100 ℃ or so, by changing the grease can transform its working temperature.Planetary reduction drive: the main transmission structure is definitely: planetary wheel, solar wheel, outer gear ring.Weighed against other reduction gear, servo motor reduction gear has high rigidity, high accuracy (single stage can achieve less than 1 stage),(double stage can perform less than 3 points), high transmission performance (single stage in 95-99%), high torque/volume ratio, life free of maintenance features.Because of these characteristics, servo engine of Planetary reduction drive is mostly installed in the stepper motor and servo engine or brushless engine, used to lessen the speed, improve the torque, matching inertia.Ranked input speed of servo engine of Planetary reduction drive can are as long as 18000rpm(related to how big is Planetary reduction drive itself.
1 product advantages