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 accuracy, long service lifestyle, 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 need for an increased torque, that is, small volume large torque, and its reliability and life are better than EP Planetary reduction drive.Spur Planetary reduction drive is utilized for low current intake, low noise and high efficiency and low cost applications.Planetary reduction drive is definitely seen as a small size, huge output torque, high transmission efficiency, so long as there are these requirements can be used
Product parameter editing
Full load efficiency: transmission efficiency of of Planetary reduction drive under optimum load (result torque of fault quit).
Working life: the cumulative working period of Planetary reduction drive in rated load and rated input speed.
Rated torque: it’s the torque that the ranked life allows for long running time.When the output rate is 100 r/min, the life span of Planetary reduction drive may be the average life, past this value, the common 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 includes a great relationship with the material 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 gear.Therefore, based on the structural characteristics of Planetary reduction drive and the load nature of gears, hardtooth surface gears should be widely used.There are plenty of heat treatment solutions 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 small size, high transmitting efficiency, wide reduction range, high precision many advantages, and is widely used in servo, stepping, dc and other transmission systems.Its function is in the premise of ensuring precision transmission, mainly used to lessen the rotation velocity and increase torque and reduce the load/engine rotational inertia ratio.In order to help nearly all users to create good utilization of the Planetary reduction drive, this paper analyzes the sources of Planetary reduction drive and the drive motor shaft breaking, and introduces in detail how exactly to properly install the Planetary reduction drive.
Right installation, use and maintenance of of Planetary reduction drive can be an important link to ensure the standard operation of mechanical equipment.As a result, when you install the Planetary reduction drive, please make sure to strictly follow the next 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 each part connected with the motor 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 second step is to unscrew the screw on the outer dustproof hole 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.After that, remove the motor shaft keys.
Surface hardening editing
Common surface quenching methods are high-frequency quenching (for little gears) and flame quenching (for large gears).The top hardened layer is most effective 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 decrease drive and servo engine: holding mode – output shaft of servo motor extends into of Planetary decrease drive, servo engine and Planetary decrease 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 includes a 0.75KW servo engine with this connection). So for this connection mode, servo motors usually do not need keyway (of training course, keyway can also be, but buying keyway servo motors needs Money and delivery period are longer yo @ @). A kind of
Connecting mode of_of Planetary reduction drive and servo electric motor: Connecting through exterior coupling. This connection mode uses external coupling, so it needs servo electrical and keyway. External coupling can also use versatile coupling (flexible shaft) – soft shaft drive power generally does not go beyond 5.5KW, speed can reach 20000 rpm. Some sort of
In most cases, the servo motors without brakes and keyways will be the many used and the Ever-Power is the largest. Consequently, to order the servo motors with brakes and keyways, the delivery period is longer, about 4 weeks.
Planetary reduction drive in the usage 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 principally due to the friction, vibration and collision of the transmission gears. How exactly to effectively reduce and reduce the noise to create it more good requirements of environmental safety is also an integral research topic at home and overseas.Reducing the apparatus transmission noise of Planetary reduction drive has become a significant research topic in the industry. Many scholars in the home and abroad regard the change of gear tooth engagement stiffness in equipment transmission as the main factor of gear powerful load, vibration and noise.By modifying the shape, 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, nearly all small factories often can not be implemented.
Planetary reduction drive is some sort 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 band, wherein the planetary wheel is supported by a fixed axis of the planetary framework, allowing the planetary wheel to rotate on the assisting axis.The planetary wheel, the sun wheel and the gear ring are in continuous meshing state.
Located in the center of the planetary gear transmission mechanism is the sun wheel, the sun wheel and the earth wheel frequently engage, two external equipment meshing rotation direction is certainly 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 internal gear, it and the earth wheel often meshing, may be the internal tooth and the external gear meshing, the rotation direction between the two may be the same.The number of planetary gear depends on the look load of the Planetary reduction drive, usually 3 or 4, the more the number of bear the strain is greater.
The above may be the Planetary reduction drive gear transmission structure of the main content.
Planetary speed of Planetary reduction drive can be a kind of speed of Planetary reduction drive, then, 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 reduction drive.
Some users in the model selection, mistakenly provided that 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 output torque of the electric motor rated output torque occasions deceleration ratio, the value obtained in principle should be less than the product sample to provide similar Planetary reduction drive rated result torque.The other is to consider the overload capacity of the drive motor and the maximum operating torque required in practice.
2. In the process of acceleration and deceleration, the instantaneous torque borne by the result shaft of the Planetary decrease drive exceeds 2 times of its rated output torque, and such acceleration and deceleration is too frequent, that may eventually make Planetary decrease drive break the shaft.
Theoretically, the maximum operating torque required by an individual must be 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 only to 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 load are stuck, the overload capacity of the generating 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 therefore twist the output shaft of the Planetary reduction drive.
Precision planetary decrease drive
There are two main types according to the output direction: straight type and correct angle type; Planetary gear systems are used to perform speed decrease due to large torque. to predict gear noise from a rear wheel drive automatic transmission.
There are usually three types based on 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 general division principle is higher than 100:1);
According to the purpose: military and civilian;According to 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 get additional very low gears which enable you proceed climb the most extreme torque Gears: 1:1 and 2.5:1 reduction gear ratio.
Planetary gear reduction drive
The first step is to confirm if the engine and Planetary reduction drive are in good shape before installation, and strictly check whether the size of each part linked 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 reduction drive groove of the electric motor.
Step 2 2: unscrew the screw on the outer dustproof hole of of Planetary decrease drive flange, adapt the clamping band 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.
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 motor must be constant when connected, and the outer flange of the two must be parallel.If the concentricity is not consistent, the electric motor shaft will be broken or of Planetary reduction drive gear wear.
Furthermore, in the installation, usually do not use hammer and additional blows, prevent the axial force or radial force an excessive amount of damage to the bearing or gear.Make sure to tighten the installation bolt prior to tightening the pressure 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 versatility 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 make sure a uniform force, 1st screw the installation bolts at any diagonal position, but usually do not screw limited, then screw the set up bolts at the additional two diagonal positions, and lastly screw the four set up bolts one at a time.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 apparatus is the same as correct 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 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 greater the quickness of Planetary reduction drive, the smaller the rated input acceleration) above, industrial-grade servo engine of Planetary reduction drive output torque is normally only 2000 nm, special large torque servo motor of Planetary reduction drive can do more than 10000 nm. Working temperature in 25 ℃ to 100 ℃ or so, by changing the grease can transform its operating temperature.Planetary reduction drive: the primary transmission structure is definitely: planetary wheel, solar wheel, outer gear ring.Weighed against other reduction gear, servo motor reduction gear provides high rigidity, high precision (single stage can perform less than 1 stage),(double stage can achieve less than 3 factors), high transmission performance (single stage in 95-99%), high torque/volume ratio, life maintenance free features.Due to these characteristics, servo engine of Planetary reduction drive is mainly installed in the stepper motor and servo motor or brushless engine, used to reduce the speed, enhance the torque, matching inertia.Rated 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