planetary reduction drive

1 product advantages
2 product parameters
3 material and heat treatment
4 installation steps
5 surface hardening
Product advantage editor
It is compact structure, little return clearance, high precision, long service lifestyle, rated output torque can do a lot.But it’s a bit more expensive.Planetary reduction drive is normally used in limited space when the necessity for an increased torque, that is, small volume large torque, and its reliability and life are much better than EP Planetary reduction drive.Spur Planetary decrease drive can be used for low current intake, low sound and high effectiveness and low cost applications.Planetary reduction drive is definitely characterized by small size, huge output torque, high transmission efficiency, so long as there are these requirements may be used
Product parameter editing
Full load efficiency: transmitting efficiency of of Planetary decrease drive under optimum load (output torque of fault prevent).
Working life: the cumulative working period 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 speed 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 materials and heat treatment
The weight of the Planetary reduction servo drive planetary gear transmission device is generally proportional to the weight of the gear, and the weight of the apparatus has a great relationship with the materials and heat treatment 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 features of Planetary reduction drive and the load 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 based on the characteristics of Planetary decrease drive.
Planetary reduction drive
In Planetary reduction drive family, the Planetary reduction drive using its small size, high tranny 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 transmission, mainly used to reduce the rotation quickness and increase torque and reduce the load/engine rotational inertia ratio.In order to help the majority of users to create good use 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 exactly to properly install the Planetary reduction drive.
Appropriate installation, use and maintenance of of Planetary reduction drive is certainly an important link to ensure the standard procedure of mechanical equipment.For that reason, when you install the Planetary reduction drive, please be sure to strictly follow the next installation related matters, cautiously assemble and use.
The first step is to confirm if the motor and Planetary reduction drive are intact before installation, and strictly check if the size of every part connected with the electric motor 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, adjust 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 little gears) and flame quenching (for large gears).The top hardened layer works best when it contains the bottom of the tooth root.The common 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 reduction drive and servo motor: holding mode – result shaft of servo motor extends into of Planetary decrease drive, servo engine and Planetary reduction drive are linked by flange. There exists a deformable hoop in Planetary reduction drive. By working the locking screw on Planetary reduction drive, the hoop can tighten the axis of the servo engine (the author has a 0.75KW servo electric motor with this connection). So for this connection setting, servo motors do not need keyway (of program, keyway may 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 electric motor: Connecting through external coupling. This connection mode uses exterior coupling, so it needs servo electrical and keyway. External coupling can also use flexible coupling (flexible shaft) – soft shaft drive power generally will not exceed 5.5KW, speed may reach 20000 rpm. Some sort of
Generally speaking, the servo motors without brakes and keyways are the many used and the Ever-Power is the largest. Consequently, to purchase the servo motors with brakes and keyways, the delivery period is definitely 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 mainly due to the friction, vibration and collision of the transmission gears. How exactly to efficiently reduce and decrease the noise to make it more based on the requirements of environmental protection is also an integral research topic at home and abroad.Reducing the gear transmission sound of Planetary reduction drive has become a significant research topic in the market. Many scholars in the home and abroad respect the change of equipment tooth engagement stiffness in gear transmission as the primary factor of gear powerful load, vibration and sound.By modifying the form, the dynamic load and velocity fluctuation are minimized to reduce the noise.This technique has became more effective in practice.But with this technique, the process will need shape modification equipment, the majority of 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 take a look.
A planetary gear carries a sun 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 supporting axis.The planetary wheel, the sun wheel and the apparatus ring are in constant meshing state.
Located in the center of the planetary gear transmission mechanism may be the sun wheel, the sun wheel and the earth wheel frequently engage, two external equipment meshing rotation direction is usually opposite.Just as sunlight 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, is the internal tooth and the external gear meshing, the rotation direction between the two may be the same.The number of planetary gear depends upon the design load of the Planetary reduction drive, usually 3 or 4, the more the amount of bear the strain is greater.
The above is the Planetary reduction drive gear transmission structure of the primary content.
Planetary speed of Planetary reduction drive can be 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 take a look.
1. The wrong type selection causes insufficient result torque of the Planetary decrease drive.
Some users in the model selection, mistakenly provided that the selected rated output torque Planetary reduction drive to meet up the work requirements can be, in fact, it isn’t, one is the rated result torque of the electric motor rated output torque occasions deceleration ratio, the value obtained in principle should be less than the merchandise 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 in practice.
2. Along the way of acceleration and deceleration, the instantaneous torque borne by the output shaft of the Planetary decrease drive exceeds 2 times of its ranked output torque, and this kind of acceleration and deceleration can be too frequent, that may eventually make Planetary reduction drive break the shaft.
Theoretically, the utmost operating torque required by an individual 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 prevent 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 driving motor will still make it constantly raise the output force, which may 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 reduction drive
Product Description:
There are two main types based on the output direction: straight type and correct angle type; Planetary gear systems are accustomed to perform speed decrease due to huge torque. to predict gear 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 significantly less than or add up to 100:1), and three-stage deceleration (huge reduction ratio is 100) :1, the general division principle is greater than 100:1);
Based on the purpose: military and civilian;Based on the operating environment: regular 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 proceed 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 motor and Planetary reduction drive are in good condition before installation, and strictly check whether the size of each part linked with the electric motor and Planetary reduction drive is matched. Listed below are the size and coordinating 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 decrease drive flange, change the clamping band of PCS program to align the side hole with the dustproof hole, insert the internal hexagon to tighten.From then on, remove the motor shaft keys.
The 3rd 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 electric motor must be consistent 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, do not use hammer and various other blows, avoid the axial force or radial force too much harm to the bearing or gear.Make sure to tighten the mounting bolt before tightening the power bolt.Before installation, wipe away 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 stop unnecessary deterioration.
Planetary reduction drivePlanetary reduction drive
Before the motor and Planetary decrease drive are connected, the motor shaft keyway ought to be perpendicular to the tightening bolt.To ensure a uniform force, initial screw the installation bolts at any kind of diagonal position, but do not screw limited, then screw the set up 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 shall be fixed and checked by the torque plate hand according to the indicated torque data.
Appropriate installation between of Planetary reduction drive and mechanical equipment is the same as appropriate installation between of Planetary reduction drive and drive motor.The main element 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 higher the speed of Planetary reduction drive, small the rated input acceleration) above, industrial-grade servo motor of Planetary reduction drive output torque is generally only 2000 nm, special large torque servo motor 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 transform its functioning temperature.Planetary reduction drive: the main transmission structure can be: planetary wheel, solar wheel, outer gear ring.Weighed against additional reduction gear, servo electric motor reduction gear offers high rigidity, high accuracy (single stage can achieve less than 1 stage),(double stage can achieve less than 3 points), high transmission efficiency (single stage in 95-99%), high torque/quantity ratio, life maintenance free features.Due to these characteristics, servo engine of Planetary decrease drive is mainly installed in the stepper electric motor and servo electric motor or brushless motor, used to lessen the speed, enhance 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.