Reducer application range

The high speed planetary gearbox is a power transmission mechanism that uses the speed converter of the gear to decelerate the number of revolutions of the motor (motor) to the desired number of revolutions and obtain a larger torque. In the current mechanism for the transmission of power and movement, the application of a wide range of reducer. Almost all kinds of machinery in the transmission system can see its traces, from the transport of ships, cars, locomotives, construction with heavy machinery, machinery industry used in processing equipment and automated production equipment, to the daily life of the common Home appliances, watches and so on. Its application from the large power transmission work, to a small load, accurate angle transmission can see the application of Helical Bevel Gear Drive, and in industrial applications, the reducer has a slowdown and increase the torque function. So widely used in speed and torque conversion equipment.

Gear reducer use, maintenance and precautions

(A) disassembly high speed reducer, should try to avoid hammering, so as not to damage the normal parts.
(B) the use of if the shaft extension or connection at the seepage phenomenon, should be promptly replaced skeleton oil seal and other seals.
(C) reducer 460 # load industrial gear oil, the working environment temperature is 0 ~ 40 ℃.
(D) after the first use of 100 hours, should be clean inside the cavity put on a new gear oil, after every 2,000 hours oil change once.

Reducer installation and use of the precautions

(1) The gear unit should be firmly installed on a stable foundation or base, and the oil in the oil drain tank should be removed and the cooling air circulation should be smooth. The foundation is unreliable, it will cause vibration and noise during operation and cause the bearing and gear to be damaged. When the transmission coupling has a protrusion or the use of gear, sprocket drive, should consider the installation of protective devices, the output shaft to bear a larger radial load, should be used to strengthen the type.
(B) according to the provisions of the installation of equipment to ensure that staff can easily close to the oil standard, ventilation plug, drain plug. After installation in place, should be in a comprehensive manner to check the accuracy of the installation location, the reliability of the fastener compression, after installation should be able to flexible rotation. Reducer with oil pool splash lubrication, in the operation before the user needs to remove the plug of the vent hole, put the ventilation plug. According to the different installation location, and open the oil level plug screw to check the height of the oil level line, from the oil level plug to the oil from the oil level plug hole overflow, screw on the oil plug is correct, before the air Test run, the time shall not be less than 2 hours. Operation should be smooth, no impact, vibration, noise and leakage of oil phenomenon, found abnormal should be promptly ruled out.
(C) the installation of high speed planetary gearbox, should pay attention to the transmission center axis alignment, the error shall not be greater than the amount of compensation used by the coupling. Good alignment can extend the service life, and get the ideal transmission efficiency.
(4) When installing the transmission parts on the output shaft, it is not allowed to strike with a hammer, usually with the internal thread of the fitting fixture and the shaft end, and the drive parts are pushed with bolts. Otherwise, the internal parts of the reducer may be damaged. It is best not to use steel fixed coupling, due to improper installation of such couplings, will cause unnecessary external load, resulting in early damage to the bearing, even when the serious cause of the output shaft fracture.

Common reducer types

(A) Helical Worm Geared Motors harmonic transmission is the use of flexible components to control the elastic deformation to transfer movement and power, the volume is not large, high precision, but the disadvantage is the limited life of the flexible wheel, impatience impact, rigidity and metal Pieces are relatively poor. The input speed can not be too high.
(B) planetary reducer has the advantage of relatively compact structure, small return gap, high precision, long life, rated output torque can be done very large. But the price is slightly expensive
(C) cycloidal speed reducers is characterized by a reverse self-locking function, you can have a larger reduction ratio, the input shaft and output shaft is not on the same axis, nor in the same plane. But the general volume is larger, the transmission efficiency is not high, the accuracy is not high.

Reducer type

General gear reducer with helical gear reducer including parallel shaft helical gear reducer, Helical Bevel Geared Motors, bevel gear reducer, etc., planetary gear reducer, cycloid reducer, worm gear reducer, planetary friction machine Class gear and so on.
The cycloidal speed reducer is generally used for low-speed and high-torque transmission equipment, the motor. Internal combustion engine or other high-speed operation of the power through the reducer on the input shaft teeth less gear meshing the output gear on the gear to achieve the purpose of deceleration, Reducer will have several pairs of the same principle gear to achieve the desired deceleration effect, the size of the gear ratio of teeth, is the transmission ratio.

The role of reducer

(1) speed at the same time cycloid reducers the load inertia, inertia reduced to the square of the reduction ratio. We can look at the general motor has a value of inertia.
(2) Deceleration simultaneously increase the output torque, torque output ratio by motor output multiplier, but be careful not to exceed the cycloidal speed reducer rated torque.

Why the planetary gearing opportunities appear broken shaft imagination.

The first possible problem with the broken shaft is the quality of the coal mill gearbox. Of course, this is what we usually think of people, one of the most important reason is the usual use of the process of the reasons. For example, in the use of planetary reducer acceleration and deceleration in the process of how we should pay attention to what a good way. The following is a summary of the three reasons for the Shanghai.
First, some applications must strictly abide by this criterion, which is not only the protection of the reducer, more important is to avoid the planetary reducer output shaft was broken. This is mainly because, if the equipment is installed, the output shaft of the helical geared motors unit and its load are stuck, and then the overload capacity of the drive motor will continue to increase its output, which may cause the output shaft of the gear unit Of the force exceeds the rated output torque of the output shaft.
Second, in the process of acceleration and deceleration, the planetary reducer output shaft by instantaneous torque if more than its rated output torque of 2 times, and this acceleration and deceleration and too frequent, then the final will make the gear off axis. Taking into account the emergence of this situation less, so here is no further introduction.
Third, the wrong selection of the reducer caused by the output is not enough. Some users in the selection, mistakenly believe that as long as the selected planetary reducer rated output torque to meet the work requirements can be, it is not true, one is equipped with the rated output torque multiplied by the reduction ratio, the value is in principle to be less than The sample output of the similar speed reducer rated output torque, and second, but also to consider the drive motor overload capacity and the actual required maximum working torque. In theory, the user needs the maximum working torque. Must be less than 2 times the rated output torque of the reducer.
Which must use the planetary reducer must pay attention to its code of conduct, while the wrong selection of fatal reason is not enough reason. Reducer output is too small to break the axis of the problem, planetary reducer broken axis is a common problem. In addition to the reducer output end of the concentricity is not good, resulting in the reducer off the shaft.