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, little return clearance, high accuracy, long service existence, rated output torque may do a lot.But it’s a bit more costly.Planetary reduction drive is normally found in limited space when the necessity for an increased torque, that’s, small volume huge torque, and its own reliability and life are better than EP Planetary reduction drive.Spur Planetary reduction drive can be used for low current intake, low sound and high efficiency and low priced applications.Planetary reduction drive is definitely 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: transmission efficiency of of Planetary reduction drive under maximum load (result torque of fault prevent).
Working existence: the cumulative working period of Planetary decrease drive at rated load and rated insight speed.
Rated torque: it’s the torque that the rated life allows for long term time.When the output acceleration is 100 r/min, the life span of Planetary reduction drive may be the average life, 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 normally proportional to the weight of the gear, and the weight of the gear includes a great relationship with the materials 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 widely used.There are plenty of heat treatment methods to obtain gear with hard tooth surface, such as 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 with its little size, high transmitting efficiency, wide reduction range, high precision many advantages, and is trusted in servo, stepping, dc and various other tranny systems.Its function is in the premise of ensuring precision transmitting, mainly used to lessen the rotation velocity and increase torque and decrease the load/motor rotational inertia ratio.In order to help the majority of users to make good usage 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 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 normal operation of mechanical equipment.Therefore, when you install the Planetary reduction drive, please be certain to strictly follow the following installation related matters, carefully assemble and use.
The first step is to confirm if the electric motor and Planetary reduction drive are intact before installation, and strictly check whether the size of every 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 engine and matching tolerance.
The next 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.From then on, remove the motor shaft keys.
Surface hardening editing
Common surface area quenching methods are high-frequency quenching (for small gears) and flame quenching (for large gears).The surface hardened layer is most effective when it includes the base 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 can reach 45~55HRC.
Connection mode between of Planetary reduction drive and servo electric motor: holding mode – result shaft of servo motor extends into of Planetary reduction drive, servo electric motor and Planetary decrease drive are linked by flange. There exists 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 motor (the author includes a 0.75KW servo electric motor with this connection). So for this connection mode, servo motors usually do not require keyway (of program, keyway may also be, but purchasing keyway servo motors needs Money and delivery period are longer yo @ @). A kind of
Linking mode of_of Planetary decrease drive and servo electric motor: Connecting through exterior coupling. This connection setting uses external coupling, so that it needs servo electric and keyway. External coupling may also use versatile coupling (flexible shaft) – smooth 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 are the many used and the Ever-Power is the largest. As a result, to purchase the servo motors with brakes and keyways, the delivery period is certainly longer, about 4 weeks.
Planetary reduction drive in the usage of the process there will be 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 exactly to efficiently reduce and reduce the noise to make it more good requirements of environmental protection is also a key research topic at home and overseas.Reducing the gear transmission noise of Planetary reduction drive has become a significant research topic in the market. Many scholars in the home and abroad regard the change of equipment tooth engagement stiffness in gear transmission as the main factor of gear dynamic load, vibration and sound.By modifying the shape, the dynamic load and velocity fluctuation are minimized to reduce the noise.This technique has proved to be more effective used.But with this method, the process will need shape modification equipment, nearly all small factories often can’t be implemented.
Planetary reduction drive is certainly a kind 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 ring, wherein the planetary wheel is supported by a fixed 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 continuous meshing state.
Located in the center of the planetary equipment transmission mechanism is the sun wheel, sunlight wheel and the earth wheel frequently engage, two external equipment meshing rotation direction is opposite.Just as the sun is at the center of the solar program, the solar wheel is named for its location.Gear band is the internal gear, it and the earth wheel often meshing, is the internal tooth and the outer gear meshing, the rotation direction between the two may be the same.The number of planetary gear depends on the look load of the Planetary reduction drive, usually three or four, the more the amount of bear the strain is greater.
The above may be 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, after that, 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 result torque of the Planetary reduction drive.
Some users in the model selection, mistakenly so long as the selected rated result torque Planetary reduction drive to meet up the work requirements could be, in fact, it isn’t, one may be the rated result torque of the engine rated output torque situations deceleration ratio, the worthiness obtained in principle ought to be less than the product sample to provide similar Planetary decrease drive rated result torque.The other is to consider the overload capacity of the drive electric motor and the maximum operating torque required used.
2. In the process 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 is usually too frequent, which will eventually make Planetary decrease drive break the shaft.
Theoretically, the utmost operating torque required simply by an individual must be significantly less than 2 times the rated output torque of the Planetary reduction drive, especially in a few applications must strictly adhere to this criterion.This is 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, 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 traveling motor will still make it constantly increase 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 based on 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 automatic transmission.
There are usually three types according to the number of stages: one-stage deceleration (generally 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 (large reduction ratio is 100) :1, the overall 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 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 allow you go climb the most 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 shape before installation, and strictly check whether the size of each part connected with the electric motor and Planetary reduction drive is matched. Listed below are the size and matching tolerance of the positioning boss, input shaft and Planetary reduction drive groove of the motor.
Step 2 2: unscrew the screw on the external dustproof hole of of Planetary reduction drive flange, adjust the clamping band of PCS program 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.
The 3rd step is to connect the electric 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 engine shaft will be broken or of Planetary reduction drive gear wear.
In addition, in the installation, usually do not use hammer and other blows, prevent the axial force or radial force an excessive amount of damage to the bearing or gear.Be sure to tighten the mounting bolt just before tightening the push 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 versatility of operation, and stop unnecessary deterioration.
Planetary reduction drivePlanetary reduction drive
Prior to the motor and Planetary decrease drive are connected, the motor shaft keyway should be perpendicular to the tightening bolt.To make sure a uniform force, initial screw the installation bolts at any diagonal position, but usually do not screw tight, then screw the set up bolts at the additional two diagonal positions, and lastly screw the four set up bolts one at a time.Finally, tighten the force bolt.All tightening bolts shall be fixed and examined by the torque plate hand based on the indicated torque data.
Appropriate installation between of Planetary reduction drive and mechanical apparatus is equivalent to right 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 portion 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 greater the velocity of Planetary reduction drive, the smaller the rated input velocity) above, industrial-grade servo engine of Planetary reduction drive output torque is generally only 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 ℃ or so, by changing the grease can change its working temperature.Planetary reduction drive: the primary transmission structure is certainly: planetary wheel, solar wheel, outer gear ring.Weighed against additional reduction gear, servo motor reduction gear has high rigidity, high accuracy (single stage can achieve 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 maintenance free features.Due to these characteristics, servo engine of Planetary decrease drive is mainly installed in the stepper motor and servo electric motor or brushless motor, used to reduce the speed, improve the torque, matching inertia.Ranked input speed of servo motor of Planetary reduction drive can reach up to 18000rpm(related to the size of Planetary reduction drive itself.
1 product advantages