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 accuracy, long service existence, rated output torque may do a great deal.But it’s a little more expensive.Planetary reduction drive is generally found in limited space when the necessity for an increased torque, that’s, small volume large torque, and its reliability and life are better than EP Planetary reduction drive.Spur Planetary decrease drive is utilized for low current usage, low sound and high effectiveness and low cost applications.Planetary reduction drive is usually characterized by small size, huge output torque, high transmission efficiency, so long as there are these requirements can be used
Product parameter editing
Full load efficiency: tranny efficiency of of Planetary decrease drive under optimum load (output torque of fault end).
Working existence: the cumulative working time of Planetary decrease drive in rated load and rated input speed.
Rated torque: it’s the torque that the ranked life allows for long term time.When the output swiftness is 100 r/min, the life span of Planetary reduction drive may be the average life, further than this value, the average 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 material and heat therapy hardness.For example, at the same power, the weight of the carburized hardened gear will be about 1/3 of the weight of the tempered equipment.Therefore, based on the structural features of Planetary reduction drive and the load nature of gears, hardtooth surface gears ought to be broadly used.There are numerous 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 reduction 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 additional tranny systems.Its function is in the premise of ensuring precision tranny, mainly used to reduce 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 electric 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 definitely an important hyperlink to ensure the normal procedure of mechanical equipment.As a result, when you install the Planetary reduction drive, make sure you make certain to strictly follow the next installation related matters, properly 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 linked with the motor and Planetary reduction drive fits, this is actually 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, modify the clamping ring of PCS system to align the medial 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 top hardened layer is most effective when it contains 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 setting between of Planetary decrease drive and servo motor: holding mode – output shaft of servo engine extends into of Planetary decrease drive, servo engine and Planetary reduction drive are connected by flange. There is a deformable hoop in Planetary decrease drive. By operating the locking screw on Planetary reduction drive, the hoop can tighten the axis of the servo motor (the author has a 0.75KW servo electric motor with this connection). Therefore for this connection mode, servo motors do not need keyway (of program, keyway can also be, but purchasing keyway servo motors requires Money and delivery time are longer yo @ @). A kind of
Connecting mode of_of Planetary reduction drive and servo motor: Connecting through exterior coupling. This connection setting uses external coupling, so that it needs servo electrical and keyway. Exterior coupling can also use flexible coupling (flexible shaft) – soft shaft drive power generally does not surpass 5.5KW, speed may reach 20000 rpm. Some sort of
Generally speaking, the servo motors without brakes and keyways are the most used and the Ever-Power may be the largest. Therefore, to order 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 there will be some noise, the emergence of the noise, how exactly to deal with it?
Planetary reduction drive
The noise of Planetary reduction drive is principally caused by the friction, vibration and collision of the transmission gears. How to successfully reduce and reduce the noise to create it more in line with the requirements of environmental security is also a key research topic in the home and abroad.Reducing the gear transmission noise of Planetary reduction drive has become an important research subject in the industry. Many scholars at home and abroad respect the change of equipment tooth engagement stiffness in equipment transmission as the main factor of gear dynamic 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 method, the process needs to have shape modification equipment, nearly all small factories often can’t be implemented.
Planetary reduction drive can be a kind of of Planetary reduction drive, what is 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 frame, allowing the planetary wheel to rotate on the assisting axis.The planetary wheel, the sun wheel and the gear ring are in constant meshing state.
Located in the center of the planetary gear transmission mechanism is the sun wheel, sunlight wheel and the planet wheel frequently engage, two external equipment meshing rotation direction is usually opposite.Just as the sun is at the guts of the solar system, the solar wheel is named for its location.Gear band is the inner gear, it and the planet 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 upon the look load of the Planetary reduction drive, usually 3 or 4, the more the number of bear the strain is greater.
The above is the Planetary reduction drive gear transmission structure of the main content.
Planetary speed of Planetary reduction drive is definitely a kind of speed of Planetary reduction drive, after that, the planetary speed of Planetary reduction drive along the way 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 reduction drive.
Some users in the model selection, mistakenly so long as the selected rated result torque Planetary decrease drive to meet the work requirements can be, in fact, it is not, one may be the rated result torque of the engine rated output torque moments deceleration ratio, the value obtained in principle should 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 engine and the utmost operating torque required in practice.
2. In the process of acceleration and deceleration, the instantaneous torque borne by the output shaft of the Planetary decrease drive exceeds 2 times of its rated output torque, and such acceleration and deceleration is definitely too frequent, that may eventually make Planetary reduction drive break the shaft.
Theoretically, the utmost operating torque required simply by the user 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 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 according to the output direction: directly type and right angle type; Planetary gear systems are accustomed to perform speed decrease due to huge torque. to predict gear noise from a back wheel drive automated 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 equal 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: regular environment, low temperature environment, clean space 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 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 shape before installation, and strictly check if the size of every part linked with the electric motor and Planetary reduction drive is matched. Listed below are the size and complementing tolerance of the positioning boss, input shaft and Planetary decrease drive groove of the engine.
Step two 2: unscrew the screw on the external dustproof hole of of Planetary decrease drive flange, adapt the clamping ring of PCS program 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 for connecting the electric 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 constant when connected, and the external 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.
Furthermore, in the installation, usually do not use hammer and various other blows, avoid the axial force or radial force an excessive amount of damage to the bearing or equipment.Make sure to tighten the installation bolt before tightening the force 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 wear and tear.
Planetary reduction drivePlanetary reduction drive
Prior to the motor and Planetary reduction drive are connected, the motor shaft keyway should 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 restricted, then screw the installation bolts at the additional two diagonal positions, and lastly screw the four installation 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.
Correct installation between of Planetary reduction drive and mechanical devices is equivalent to correct installation between of Planetary reduction drive and drive engine.The main element is to make sure that the output shaft of Planetary reduction drive and the drive part of the shaft concentricity.
servo 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 acceleration of Planetary reduction drive, small the rated input swiftness) 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 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 primary transmission structure is usually: planetary wheel, solar wheel, outer gear ring.Compared with various other reduction gear, servo motor reduction gear offers high rigidity, high precision (single stage can perform less than 1 point),(double stage can perform less than 3 points), high transmission efficiency (single stage in 95-99%), high torque/volume ratio, life maintenance free features.Because of these characteristics, servo engine of Planetary reduction drive is mostly installed in the stepper engine and servo engine or brushless electric motor, used to reduce 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 the size of Planetary reduction drive itself.
1 product advantages