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 existence, rated output torque can do a great deal.But it’s a bit more costly.Planetary reduction drive is normally found in limited space when the need for an increased torque, that’s, small volume huge torque, and its reliability and life are better than EP Planetary reduction drive.Spur Planetary decrease drive can be used for low current usage, low noise and high efficiency and low cost applications.Planetary reduction drive can be characterized by small size, large output torque, high transmission efficiency, as long as there are these requirements can be used
Product parameter editing
Full load efficiency: transmitting efficiency of of Planetary decrease drive under maximum load (output torque of fault end).
Working existence: the cumulative working time of Planetary decrease drive at rated load and rated input speed.
Rated torque: it is the torque that the rated life allows for long running time.When the output velocity is 100 r/min, the life span of Planetary reduction drive may be the average life, beyond 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 gear has 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 gear.Therefore, according to the structural characteristics of Planetary reduction drive and the strain nature of gears, hardtooth surface gears should be widely used.There are several 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 transmitting efficiency, wide reduction range, high precision many advantages, and is widely used in servo, stepping, dc and additional transmission systems.Its function is in the premise of ensuring precision transmitting, mainly used to reduce the rotation acceleration and increase torque and reduce the load/motor rotational inertia ratio.In order to help the majority of users to make good utilization 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 link to ensure the standard procedure of mechanical equipment.As a result, when you install the Planetary reduction drive, please be sure to strictly follow the next installation related matters, thoroughly 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 every part connected with the motor and Planetary reduction drive matches, here is the size of the positioning boss, input shaft and Planetary reduction drive groove of the engine and matching tolerance.
The second step is to unscrew the screw on the outer dustproof hole of Planetary reduction drive flange, adjust 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 quenching methods are high-frequency quenching (for small gears) and flame quenching (for large gears).The surface hardened layer works best 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 can reach 45~55HRC.
Connection mode between of Planetary decrease drive and servo engine: holding mode – output shaft of servo engine extends into of Planetary decrease drive, servo motor and Planetary reduction 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 includes a 0.75KW servo engine with this connection). Therefore for this connection mode, servo motors usually do not require keyway (of course, keyway can also be, but purchasing keyway servo motors requires Money and delivery period are longer yo @ @). Some sort of
Linking mode of_of Planetary decrease drive and servo electric motor: Connecting through external coupling. This connection mode uses external coupling, so that it needs servo electrical and keyway. External coupling can also use flexible coupling (flexible shaft) – gentle shaft drive power generally will not surpass 5.5KW, speed may reach 20000 rpm. A kind of
Generally speaking, the servo motors without brakes and keyways are 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 can be longer, about 4 weeks.
Planetary reduction drive in the usage of the process you will see some noise, the emergence of the noise, how exactly 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 to efficiently reduce and decrease the noise to make it more based on the requirements of environmental safety is also a key research topic in the home and overseas.Reducing the gear transmission sound of Planetary decrease drive has become an essential research subject in the market. Many scholars in the home and abroad respect the change of gear tooth engagement stiffness in gear transmission as the primary factor of gear dynamic load, vibration and noise.By modifying the form, the dynamic 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’t be implemented.
Planetary reduction drive can be a kind of of Planetary reduction drive, what’s the transmission structure of planetary gear?Let’s take a look.
A planetary gear includes a sun wheel, a planetary wheel, and a gear ring, wherein the planetary wheel is supported by a fixed axis of the planetary body, 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 gear transmission mechanism is the sun wheel, sunlight wheel and the planet wheel often engage, two external gear meshing rotation direction is opposite.Just as sunlight is at the guts of the solar program, the solar wheel is known as because of its location.Gear band is the internal gear, it and the earth wheel often meshing, is the internal tooth and the external gear meshing, the rotation direction between your two may be the same.The amount of planetary gear depends upon the design load of the Planetary reduction drive, usually 3 or 4, the more the number of bear the load is greater.
The above may be the Planetary reduction drive equipment transmission structure of the main content.
Planetary speed of Planetary reduction drive can be some sort of speed of Planetary reduction drive, then, the planetary speed of Planetary reduction drive in the process of using the reason for 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 so long as the selected rated output torque Planetary decrease drive to meet up the work requirements could be, in fact, it isn’t, one may be the rated output torque of the electric motor rated output torque situations deceleration ratio, the worthiness obtained in principle should be less than the product sample to supply similar Planetary decrease drive rated output 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 output shaft of the Planetary reduction drive exceeds 2 times of its rated output torque, and this kind of acceleration and deceleration can be too frequent, which will eventually make Planetary reduction drive break the shaft.
Theoretically, the utmost operating torque required 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 comply with this criterion.This is 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 load are stuck, the overload capacity of the traveling motor will still make it constantly raise 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 reduction drive
There are two main types according to the output direction: directly type and correct angle type; Planetary equipment systems are used to perform speed reduction due to large torque. to predict equipment noise from a rear wheel drive automatic 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 higher than 100:1);
According to the purpose: military and civilian;Based on 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 gain additional suprisingly low gears which enable you go climb the most 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 engine 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, insight shaft and Planetary decrease drive groove of the electric motor.
Step 2 2: unscrew the screw on the outer dustproof hole of of Planetary decrease drive flange, modify the clamping ring of PCS system to align the medial side hole with the dustproof hole, insert the internal hexagon to tighten.From then on, remove the motor shaft keys.
The third step is to connect the motor with Planetary reduction drive naturally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the motor must be consistent when connected, and the outer flange of both must be parallel.If the concentricity is not consistent, the engine shaft will be broken or of Planetary reduction drive gear wear.
In addition, in the installation, do not use hammer and additional blows, prevent the axial force or radial force an excessive amount of harm to the bearing or gear.Be sure to tighten the installation bolt prior to tightening the force 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 flexibility 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 make sure a uniform force, 1st screw the set up bolts at any diagonal position, but usually do not screw limited, then screw the installation bolts at the other two diagonal positions, and lastly screw the four installation bolts one at a time.Finally, tighten the force bolt.All tightening bolts will be fixed and examined by the torque plate hand based on the indicated torque data.
Appropriate installation between of Planetary reduction drive and mechanical equipment is the same as right installation between of Planetary reduction drive and drive electric motor.The main element is to ensure that the output shaft of Planetary reduction drive and the drive section 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 acceleration of Planetary reduction drive, small the rated input speed) above, industrial-grade servo motor of Planetary reduction drive output torque is generally only 2000 nm, special huge torque servo engine of Planetary reduction drive can perform a lot more than 10000 nm. Operating temperature in 25 ℃ to 100 ℃ or so, by changing the grease can change its functioning temperature.Planetary reduction drive: the main transmission structure is: planetary wheel, solar wheel, outer gear ring.Compared with additional reduction gear, servo engine reduction gear offers high rigidity, high accuracy (single stage can achieve less than 1 point),(double stage can perform less than 3 factors), high transmission effectiveness (single stage in 95-99%), high torque/quantity ratio, life free of maintenance features.Due to these characteristics, servo electric motor of Planetary decrease drive is mainly installed in the stepper engine and servo engine or brushless motor, used to lessen the speed, improve the torque, matching inertia.Rated input speed of servo engine of Planetary reduction drive can reach up to 18000rpm(related to how big is Planetary reduction drive itself.
planetary reduction drive
1 product advantages