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 may do a lot.But it’s a bit more costly.Planetary reduction drive is normally used in limited space when the necessity 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 reduction drive can be used for low current usage, low sound and high effectiveness and low priced applications.Planetary reduction drive is seen as a small size, huge 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 reduction drive under optimum load (output torque of fault stop).
Working life: the cumulative working time of Planetary decrease 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 acceleration is 100 r/min, the life of Planetary reduction drive is the average life, outside of 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 apparatus has a great relationship with the material and heat treatment 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 characteristics of Planetary reduction drive and the strain nature of gears, hardtooth surface gears ought to be widely used.There are many heat treatment methods to obtain gear with hard tooth surface, such as for example 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 with 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 transmission, mainly used to reduce the rotation quickness and increase torque and reduce the load/engine rotational inertia ratio.To be able to help the majority of users to make good utilization of the Planetary reduction drive, this paper analyzes the causes of Planetary reduction drive and the drive engine 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 definitely an important hyperlink to ensure the normal operation of mechanical equipment.Consequently, when you install the Planetary reduction drive, please make sure to strictly follow the following installation related matters, cautiously assemble and use.
The first rung on the ladder is to confirm whether the engine and Planetary reduction drive are intact before installation, and strictly check if the size of each 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 electric motor 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, take away 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 surface hardened layer works best when it includes the base 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 can reach 45~55HRC.
Connection setting between of Planetary reduction drive and servo motor: holding mode – output shaft of servo motor extends into of Planetary reduction drive, servo 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 reduction drive, the hoop can tighten the axis of the servo engine (the author has a 0.75KW servo motor with this connection). So for this connection setting, servo motors do not require keyway (of training course, keyway may also be, but purchasing keyway servo motors needs Money and delivery period are longer yo @ @). A kind of
Linking mode of_of Planetary reduction drive and servo electric motor: Connecting through external coupling. This connection mode uses external coupling, so it needs servo electric and keyway. External coupling can also use versatile coupling (flexible shaft) – smooth shaft drive power generally will not go beyond 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 may be the largest. For that reason, to order the servo motors with brakes and keyways, the delivery period is longer, about four weeks.
Planetary reduction drive in the use of the process you will see some noise, the emergence of the noise, how exactly 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 exactly to efficiently reduce and reduce the noise to make it more good requirements of environmental safety is also a key research topic at home and abroad.Reducing the apparatus transmission noise of Planetary reduction drive has become an essential research topic in the market. Many scholars at home and abroad respect the change of gear tooth engagement stiffness in equipment transmission as the primary factor of gear powerful load, vibration and noise.By modifying the form, the powerful load and velocity fluctuation are minimized to reduce the noise.This technique has became more effective used.But with this technique, the process needs to have shape modification equipment, the majority of small factories often can’t be implemented.
Planetary reduction drive is certainly 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 set axis of the planetary framework, allowing the planetary wheel to rotate on the assisting 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, the sun wheel and the planet wheel often engage, two external gear meshing rotation direction can be opposite.Just as the sun is at the center of the solar system, the solar wheel is named for its location.Gear band is the inner gear, it and the earth wheel often meshing, may be the inner tooth and the outer gear meshing, the rotation direction between the two may be the same.The amount of planetary gear depends upon the look 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 gear transmission structure of the main content.
Planetary speed of Planetary reduction drive is usually some sort 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 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 result torque Planetary reduction drive to meet up the work requirements could be, in fact, it isn’t, one is the rated result torque of the electric motor rated output torque moments deceleration ratio, the value obtained in principle ought to be less than the product sample to provide similar Planetary decrease drive rated output 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 decrease drive exceeds two times of its rated output torque, and this kind of acceleration and deceleration is definitely too frequent, that will eventually make Planetary reduction drive break the shaft.
Theoretically, the maximum operating torque required 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 comply with this criterion.This is not and then protect the Planetary reduction drive, but also to avoid 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 own load are stuck, the overload capacity of the driving 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 reduction drive
There are two main types according to the output direction: straight type and right angle type; Planetary equipment systems are accustomed to perform speed decrease due to large torque. to predict equipment noise from a back wheel drive automatic transmission.
There are generally three types according to the number of stages: one-stage deceleration (generally significantly 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 (large 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 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 whether the engine and Planetary reduction drive are in good condition before installation, and strictly check if the size of each part linked with the electric motor and Planetary reduction drive is matched. Here are the size and complementing tolerance of the positioning boss, input 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, change the clamping ring of PCS system to align the medial side hole with the dustproof hole, insert the internal hexagon to tighten.After that, remove the motor shaft keys.
The third step is for connecting the motor with Planetary reduction drive normally.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 should be parallel.If the concentricity isn’t consistent, the engine shaft will be broken or of Planetary reduction drive gear wear.
In addition, in the installation, do not use hammer and other blows, prevent the axial force or radial force an excessive amount of damage to the bearing or gear.Make sure to tighten the mounting bolt before tightening the pressure 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 versatility of operation, and prevent unnecessary deterioration.
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, first screw the installation bolts at any kind of diagonal position, but do not screw tight, then screw the set up bolts at the various other two diagonal positions, and finally screw the four set up 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.
Appropriate installation between of Planetary reduction drive and mechanical gear is the same as correct installation between of Planetary reduction drive and drive motor.The key is to ensure that the output shaft of Planetary reduction drive and the drive section 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 swiftness of Planetary reduction drive, small the rated input quickness) above, industrial-grade servo motor of Planetary reduction drive output torque is generally only 2000 nm, special huge torque servo electric motor of Planetary reduction drive can do more than 10000 nm. Operating temperature in 25 ℃ to 100 ℃ roughly, by changing the grease can transform its operating temperature.Planetary reduction drive: the main transmission structure is: planetary wheel, solar wheel, outer gear ring.Weighed against additional reduction gear, servo engine reduction gear offers high rigidity, high precision (single stage can perform less than 1 point),(double stage can achieve less than 3 points), high transmission performance (single stage in 95-99%), high torque/volume ratio, life maintenance free features.Because of these characteristics, servo engine of Planetary decrease drive is mostly installed in the stepper electric motor and servo engine or brushless electric motor, used to lessen the speed, enhance the torque, matching inertia.Rated 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