1 product advantages
2 product parameters
3 material and heat treatment
4 installation steps
5 surface hardening
Product advantage editor
It is compact structure, small return clearance, high precision, long service existence, rated output torque can do a lot.But it’s a little more costly.Planetary reduction drive is generally found in limited space when the need for an increased torque, that’s, small volume large torque, and its own reliability and life are better than EP Planetary reduction drive.Spur Planetary decrease drive can be used for low current intake, low sound and high performance and low priced applications.Planetary reduction drive is definitely seen as a small size, large output torque, high transmission efficiency, provided that there are these requirements can be used
Product parameter editing
Full load efficiency: transmitting efficiency of of Planetary decrease drive under optimum load (result torque of fault stop).
Working lifestyle: the cumulative working time 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 speed is 100 r/min, the life 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 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 apparatus 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 gear.Therefore, based on the structural features of Planetary reduction drive and the strain nature of gears, hardtooth surface gears should be widely used.There are several heat treatment solutions to obtain gear with hard tooth surface, such as surface quenching, overall quenching, carburizing quenching, nitriding, etc., which should 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 tranny efficiency, wide reduction range, high precision many advantages, and is widely used in servo, stepping, dc and additional transmitting systems.Its function is in the premise of ensuring precision transmitting, mainly used to reduce the rotation acceleration and increase torque and decrease the load/motor rotational inertia ratio.To be able to help nearly all users to make good usage of the Planetary reduction drive, this paper analyzes the causes 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 can be an important hyperlink 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 following installation related matters, carefully 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 whether the size of every part connected with the engine and Planetary reduction drive fits, here is 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, 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 is most effective when it includes the bottom 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 area can reach 45~55HRC.
Connection mode between of Planetary reduction drive and servo engine: holding mode – output shaft of servo electric motor extends into of Planetary reduction drive, servo electric motor and Planetary decrease drive are connected by flange. There exists a deformable hoop in Planetary decrease drive. By operating the locking screw on Planetary decrease drive, the hoop can tighten the axis of the servo engine (the author includes a 0.75KW servo motor with this connection). Therefore for this connection setting, servo motors usually do not require keyway (of program, keyway may also be, but buying keyway servo motors needs Money and delivery time are longer yo @ @). A kind of
Connecting mode of_of Planetary reduction drive and servo engine: Connecting through exterior coupling. This connection mode uses external coupling, so that it needs servo electric and keyway. External coupling can also use flexible coupling (flexible shaft) – smooth shaft drive power generally does not go beyond 5.5KW, speed can reach 20000 rpm. Some sort of
In most cases, the servo motors without brakes and keyways are the the majority of used and the Ever-Power may be the largest. Consequently, to order the servo motors with brakes and keyways, the delivery period can be longer, about four 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 due to the friction, vibration and collision of the transmission gears. How exactly to successfully reduce and reduce the noise to create it more good requirements of environmental security is also a key research topic in the home and abroad.Reducing the gear transmission noise of Planetary decrease drive has become an essential research subject in the market. Many scholars in the home and abroad respect the change of equipment tooth engagement stiffness in equipment transmission as the main factor of gear powerful load, vibration and sound.By modifying the form, the powerful load and velocity fluctuation are minimized to reduce the noise.This method has became 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 is certainly 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 sunlight wheel, a planetary wheel, and a gear ring, wherein the planetary wheel is supported by a fixed axis of the planetary framework, allowing the planetary wheel to rotate on the helping 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, sunlight wheel and the planet wheel often engage, two external equipment meshing rotation direction can be opposite.Just as the sun is at the guts of the solar program, the solar wheel is named because of its location.Gear band is the internal gear, it and the earth wheel often meshing, is the inner tooth and the external gear meshing, the rotation direction between the two is the same.The amount 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 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 along the way of using the cause of the shaft break what?Let’s take a look.
1. The wrong 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 reduction drive to meet the work requirements could be, in fact, it is not, one may be the rated output torque of the electric motor rated output torque situations deceleration ratio, the value obtained in principle ought to be less than the product sample to supply similar Planetary decrease drive rated result torque.The other is to consider the overload capacity of the drive electric motor and the utmost operating torque required used.
2. In the process of acceleration and deceleration, the instantaneous torque borne by the result shaft of the Planetary reduction drive exceeds two times of its rated output torque, and this kind of acceleration and deceleration is certainly too frequent, that will eventually make Planetary decrease drive break the shaft.
Theoretically, the maximum operating torque required simply by the user 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 prevent the output shaft of Planetary reduction drive from being twisted off.The main 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 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: directly type and correct angle type; Planetary equipment systems are used to perform speed decrease due to huge torque. to predict equipment noise from a rear wheel drive automatic transmission.
There are generally three types based on the number of stages: one-stage deceleration (generally less than 10:1), two-stage deceleration (generally greater 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: 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 gain additional suprisingly low gears which allow you go 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 whether the electric motor and Planetary reduction drive are in good condition 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 complementing 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 reduction drive flange, adjust the clamping ring of PCS program to align the medial side hole with the dustproof hole, insert the inner hexagon to tighten.From then on, remove the motor shaft keys.
The third step is for connecting the motor with Planetary reduction drive naturally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the engine must be constant when connected, and the outer flange of both should be parallel.If the concentricity is not consistent, the engine shaft will be broken or of Planetary decrease drive gear wear.
In addition, in the installation, usually do not use hammer and other blows, avoid the axial force or radial force an excessive amount of damage to the bearing or equipment.Be sure to tighten the mounting bolt prior to tightening the pressure bolt.Before installation, wipe aside 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 prevent unnecessary deterioration.
Planetary reduction drivePlanetary reduction drive
Prior to the motor and Planetary reduction drive are linked, the motor shaft keyway should 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 usually do not screw tight, then screw the set up bolts at the various other two diagonal positions, and lastly screw the four set up bolts one by one.Finally, tighten the force bolt.All tightening bolts shall be fixed and checked by the torque plate hand according to the indicated torque data.
Right installation between of Planetary reduction drive and mechanical apparatus is the same as correct 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 section of the shaft concentricity.
servo engine 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 swiftness of Planetary reduction drive, the smaller the rated input quickness) above, industrial-grade servo engine of Planetary reduction drive output torque is generally not more than 2000 nm, special huge torque servo motor of Planetary reduction drive can do a lot more than 10000 nm. Operating 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 various other reduction gear, servo engine reduction gear provides high rigidity, high precision (single stage can perform less than 1 point),(double stage can perform 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 mainly installed in the stepper electric motor and servo electric motor or brushless electric motor, used to reduce the speed, enhance the torque, matching inertia.Ranked input speed of servo electric motor of Planetary reduction drive can are as long as 18000rpm(related to the size of Planetary reduction drive itself.
1 product advantages