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 can do a great deal.But it’s a little more costly.Planetary reduction drive is normally found in limited space when the necessity for a higher torque, that’s, small volume large torque, and its own reliability and life are much better than EP Planetary reduction drive.Spur Planetary decrease drive is used for low current intake, low sound and high performance and low cost applications.Planetary reduction drive is certainly seen as a small size, huge output torque, high transmission efficiency, so long as there are these requirements may be used
Product parameter editing
Full load efficiency: transmission efficiency of of Planetary decrease drive under optimum load (output torque of fault end).
Working existence: the cumulative working period of Planetary reduction drive in rated load and rated insight speed.
Rated torque: it’s the torque that the rated life allows for long term time.When the output rate is 100 r/min, the life span of Planetary reduction drive is the average life, over and above this value, the average 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 has a great relationship with the materials and heat therapy hardness.For instance, 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 characteristics of Planetary reduction drive and the strain nature of gears, hardtooth surface gears ought to 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., 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 trusted in servo, stepping, dc and various other transmission systems.Its function is in the premise of ensuring precision transmission, mainly used to reduce the rotation quickness and increase torque and reduce the load/electric motor rotational inertia ratio.To be able to help the majority of users to create good usage of the Planetary reduction drive, this paper analyzes the causes of Planetary reduction drive and the drive electric motor shaft breaking, and introduces in detail how to properly install the Planetary reduction drive.
Right installation, use and maintenance of of Planetary reduction drive is certainly an important link to ensure the standard procedure of mechanical equipment.Therefore, when you install the Planetary reduction drive, make sure you be certain to strictly follow the following installation related matters, properly assemble and use.
The first rung on the ladder is to confirm if the electric motor and Planetary reduction drive are intact before installation, and strictly check whether 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 electric 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 side hole with the dustproof hole, insert the inner hexagon to tighten.After that, take away the motor shaft keys.
Surface hardening editing
Common surface area quenching methods are high-frequency quenching (for small 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 approximately 0.35%~0.5%. The hardness of tooth surface can reach 45~55HRC.
Connection setting between of Planetary decrease drive and servo electric motor: holding mode – result shaft of servo motor extends into of Planetary reduction 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 decrease drive, the hoop can tighten the axis of the servo motor (the author has a 0.75KW servo motor with this connection). So for this connection mode, servo motors do not need keyway (of course, keyway may also be, but purchasing keyway servo motors requires Money and delivery time are longer yo @ @). Some sort 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 electrical and keyway. External coupling may also use versatile coupling (flexible shaft) – smooth shaft drive power generally will not surpass 5.5KW, speed may reach 20000 rpm. A kind of
In most cases, the servo motors without brakes and keyways are the the majority of used and the Ever-Power is the largest. As a result, to order the servo motors with brakes and keyways, the delivery period can be longer, about 4 weeks.
Planetary reduction drive in the use of the process you will have 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 exactly to successfully reduce and decrease the noise to create it more good requirements of environmental protection is also an integral research topic in the home and overseas.Reducing the apparatus transmission sound of Planetary reduction drive has become a significant research subject in the industry. Many scholars at home and abroad regard the change of equipment tooth engagement stiffness in gear transmission as the main factor of gear powerful load, vibration and sound.By modifying the shape, the dynamic load and velocity fluctuation are minimized to lessen the noise.This method has became more effective in practice.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’s the transmission structure of planetary gear?Let’s have a look.
A planetary gear includes a sunlight wheel, a planetary wheel, and a gear band, wherein the planetary wheel is supported by a set axis of the planetary framework, allowing the planetary wheel to rotate on the supporting 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 planet wheel frequently engage, two external equipment meshing rotation direction is definitely opposite.Just as the sun is at the center of the solar program, the solar wheel is known as 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 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 load is greater.
The above may be the Planetary reduction drive equipment 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 result torque of the Planetary reduction drive.
Some users in the model selection, mistakenly so long as the selected rated output torque Planetary decrease drive to meet the work requirements could be, in fact, it isn’t, one may be the rated result torque of the motor rated output torque moments deceleration ratio, the value obtained in principle ought to be less than the merchandise sample to supply 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 in practice.
2. Along the way of acceleration and deceleration, the instantaneous torque borne by the result shaft of the Planetary decrease drive exceeds 2 times of its ranked output torque, and such acceleration and deceleration is definitely too frequent, that will eventually make Planetary reduction drive break the shaft.
Theoretically, the utmost operating torque required simply by an individual must be less than two 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 prevent the output shaft of Planetary reduction drive from being twisted off.The primary 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 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 two times and thus twist the output shaft of the Planetary reduction drive.
Precision planetary reduction drive
There are two main types based on the output direction: directly type and correct angle type; Planetary gear systems are accustomed to perform speed decrease due to large 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 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);
Based on the purpose: military and civilian;Based on the operating environment: standard environment, low temperature environment, clean room 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 move climb the the majority of 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 if the electric motor and Planetary reduction drive are in good condition before installation, and strictly check if the size of each part connected with the engine and Planetary reduction drive is matched. Listed below are the size and matching tolerance of the positioning boss, insight shaft and Planetary decrease drive groove of the motor.
Step two 2: unscrew the screw on the external dustproof hole of of Planetary reduction drive flange, adapt 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 to connect the motor with Planetary reduction drive normally.The concentricity of the output shaft of Planetary reduction drive and the input shaft of the motor must be constant when connected, and the outer flange of the two should be parallel.If the concentricity isn’t consistent, the motor 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 harm to the bearing or gear.Make sure to tighten the installation bolt just before tightening the power 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 ensure tight connection and flexibility of operation, and prevent unnecessary deterioration.
Planetary reduction drivePlanetary reduction drive
Before the motor and Planetary reduction drive are linked, the motor shaft keyway should be perpendicular to the tightening bolt.To ensure a uniform force, first screw the installation bolts at any diagonal position, but do not screw restricted, then screw the installation bolts at the various other two diagonal positions, and lastly screw the four installation bolts one by one.Finally, tighten the force bolt.All tightening bolts will be fixed and checked by the torque plate hand according to the indicated torque data.
Right installation between of Planetary reduction drive and mechanical tools 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 area 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 higher the rate of Planetary reduction drive, small the rated input velocity) above, industrial-grade servo electric motor of Planetary reduction drive output torque is generally not more than 2000 nm, special large torque servo electric motor of Planetary reduction drive can do a lot more than 10000 nm. Operating temperature in 25 ℃ to 100 ℃ roughly, by changing the grease can transform its functioning temperature.Planetary reduction drive: the primary transmission structure is usually: planetary wheel, solar wheel, outer gear ring.Weighed against various other reduction gear, servo electric motor reduction gear provides high rigidity, high precision (single stage can achieve less than 1 stage),(double stage can perform less than 3 factors), high transmission effectiveness (single stage in 95-99%), high torque/quantity ratio, life maintenance free features.Due to these characteristics, servo engine of Planetary reduction drive is mostly installed in the stepper engine and servo engine or brushless motor, used to reduce the speed, enhance the torque, matching inertia.Ranked input speed of servo engine of Planetary reduction drive can reach up to 18000rpm(related to how big is Planetary reduction drive itself.
1 product advantages