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 precision, long service existence, rated output torque may do a lot.But it’s a bit more costly.Planetary reduction drive is generally used in limited space when the necessity for a higher 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 sound and high effectiveness and low priced applications.Planetary reduction drive is certainly 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: transmission efficiency of of Planetary reduction drive under maximum load (output torque of fault end).
Working life: the cumulative working time of Planetary reduction drive in rated load and rated input speed.
Rated torque: it is the torque that the rated life allows for long term time.When the output speed is 100 r/min, the life of Planetary reduction drive is 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 apparatus, and the weight of the gear includes a great relationship with the materials and heat therapy hardness.For example, at the same power, the weight of the carburized hardened equipment will be about 1/3 of the weight of the tempered equipment.Therefore, based on the structural features of Planetary reduction drive and the strain nature of gears, hardtooth surface gears ought to 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., that ought to be selected based on the characteristics of Planetary reduction drive.
Planetary reduction drive
In Planetary reduction drive family, the Planetary reduction drive using its little size, high transmission efficiency, wide reduction range, high precision many advantages, and is widely used in servo, stepping, dc and various other transmission systems.Its function is in the premise of ensuring precision transmitting, mainly used to reduce the rotation speed and increase torque and reduce the load/engine rotational inertia ratio.To be able 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 motor 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 usually an important link to ensure the standard operation of mechanical equipment.Consequently, when you install the Planetary reduction drive, please make sure to strictly follow the following installation related matters, properly assemble and use.
The first step is to confirm whether the motor and Planetary reduction drive are intact before installation, and strictly check whether the size of every part linked with the engine 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 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.After that, 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 top 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 approximately 0.35%~0.5%. The hardness of tooth surface can reach 45~55HRC.
Connection mode between of Planetary reduction drive and servo motor: holding mode – result shaft of servo electric motor extends into of Planetary decrease drive, servo engine and Planetary reduction drive are connected by flange. There exists a deformable hoop in Planetary reduction drive. By operating the locking screw on Planetary reduction drive, the hoop can tighten the axis of the servo engine (the author has a 0.75KW servo motor with this connection). Therefore for this connection setting, servo motors do not require keyway (of training course, keyway can also be, but purchasing keyway servo motors requires Money and delivery period are longer yo @ @). A kind of
Linking mode of_of Planetary reduction drive and servo motor: Connecting through external coupling. This connection setting uses external coupling, so that it needs servo electric and keyway. Exterior coupling may also use versatile coupling (flexible shaft) – gentle shaft drive power generally does not surpass 5.5KW, speed may reach 20000 rpm. Some sort of
In most cases, the servo motors without brakes and keyways are the most used and the Ever-Power may be the largest. As a result, to order the servo motors with brakes and keyways, the delivery period is definitely longer, about four 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 mainly caused by the friction, vibration and collision of the transmission gears. How to efficiently reduce and reduce the noise to make it more good requirements of environmental security is also a key research topic at home and abroad.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 gear tooth engagement stiffness in equipment transmission as the main factor of gear dynamic load, vibration and sound.By modifying the form, the dynamic load and velocity fluctuation are minimized to reduce the noise.This method has proved to be more effective used.But with this technique, the process needs to have shape modification equipment, nearly all small factories often can’t be implemented.
Planetary reduction drive is definitely a kind 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 framework, allowing the planetary wheel to rotate on the helping axis.The planetary wheel, sunlight wheel and the apparatus ring are in continuous meshing state.
Located in the guts of the planetary gear transmission mechanism is the sun wheel, the sun wheel and the earth wheel frequently engage, two external gear meshing rotation direction is definitely opposite.Just as the sun is at the guts of the solar system, the solar wheel is known as because of its location.Gear ring 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 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 definitely some sort 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 have a look.
1. The incorrect type selection causes insufficient result torque of the Planetary decrease 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 is not, one is the rated result torque of the motor rated output torque occasions deceleration ratio, the worthiness obtained in principle should be less than the merchandise sample to provide similar Planetary reduction 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. Along the way 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 such acceleration and deceleration is usually too frequent, that may eventually make Planetary reduction drive break the shaft.
Theoretically, the utmost operating torque required by the user must be less than two times the rated output torque of the Planetary reduction drive, especially in some applications must strictly comply with this criterion.This is 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, 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 raise the output force, which might 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 based on the output direction: directly type and right angle type; Planetary equipment systems are accustomed to perform speed decrease due to huge torque. to predict equipment noise from a back 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 significantly less than or equal 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: 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 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 step is to confirm if the electric motor and Planetary reduction drive are in good shape 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 matching tolerance of the positioning boss, insight shaft and Planetary reduction drive groove of the engine.
Step 2 2: unscrew the screw on the outer dustproof hole of 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.
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 engine must be constant when connected, and the outer flange of the two must be parallel.If the concentricity is not consistent, the motor shaft will be broken or of Planetary reduction drive gear wear.
Furthermore, in the installation, usually do not use hammer and other blows, avoid the axial force or radial force an excessive amount of harm to the bearing or gear.Be sure to tighten the mounting bolt before tightening the power bolt.Before installation, wipe aside 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 deterioration.
Planetary reduction drivePlanetary reduction drive
Before the motor and Planetary reduction drive are connected, the motor shaft keyway should be perpendicular to the tightening bolt.To ensure a uniform force, first screw the set up bolts at any kind of diagonal position, but do not screw limited, then screw the set up 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 shall be fixed and examined by the torque plate hand according to the indicated torque data.
Correct installation between of Planetary reduction drive and mechanical gear is equivalent to correct installation between of Planetary reduction drive and drive engine.The key is to make sure that the output shaft of Planetary reduction drive and the drive area of the shaft concentricity.
servo engine 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 greater the rate of Planetary reduction drive, small the rated input acceleration) above, industrial-grade servo electric 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 do more than 10000 nm. Functioning temperature in 25 ℃ to 100 ℃ roughly, by changing the grease can transform its operating temperature.Planetary reduction drive: the main transmission structure is usually: planetary wheel, solar wheel, outer gear ring.Compared with additional reduction gear, servo motor reduction gear has high rigidity, high precision (single stage can perform less than 1 point),(double stage can achieve less than 3 points), high transmission efficiency (single stage in 95-99%), high torque/volume ratio, life maintenance free features.Due to these characteristics, servo motor of Planetary decrease drive is mainly installed in the stepper engine and servo motor or brushless engine, used to reduce the speed, improve the torque, matching inertia.Ranked input speed of servo electric motor of Planetary reduction drive can reach up to 18000rpm(related to the size of Planetary reduction drive itself.
1 product advantages