2017年9月29日星期五

What is the role of reducer?

The main role of high speed reducer:
1, slow down at the same time improve the output torque, torque output ratio by motor output multiplier, but be careful not to exceed the reducer rated torque. In the case of
2, slow down while reducing the inertia of the load, the inertia of the reduction of the square of the reduction ratio. General motors have an inertia value.

2017年9月24日星期日

How does the gear unit work?

The Helical Bevel Gear Drives 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 speed variator motor 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.

2017年9月19日星期二

What are the precautions for installing the gear unit?

1, the cement mill gearbox should be firmly installed on a stable level of the base or base, the oil tank oil should be able to exclude, and the cooling air circulation 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 with a protrusion or the use of gears, 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. In the case of
2, according to the provisions of the installation device 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. After a certain period of time should check the oil level to prevent the chassis may cause leakage, such as the ambient temperature is too high or too low, you can change the brand of lubricants. In the case of
3, the installation of small worm 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. In the case of
4, the output shaft on the installation of transmission parts, not allowed to use a hammer percussion, usually using the assembly fixture and shaft end of the internal thread, with the bolt will drive into the case, otherwise it may cause internal parts of the reducer damage. 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.

2017年9月14日星期四

Characteristics of worm gear reducer

ball mill gearbox is a power transmission mechanism, the use of gear speed converter, the motor (motor) the number of revolutions to the desired number of revolutions, and get a larger torque of the body.
Worm gear reducer is characterized by a reverse self-locking function, you can have a larger reduction ratio, the input shaft and the output shaft is not on the same axis, nor in the same plane.
Bucket Elevator Gear using aluminum alloy shell, beautiful appearance, compact structure, small size, smooth transmission, low noise, easy maintenance.
Input method: motor direct connection, motor belt connection or input shaft, connecting flange input.
Output mode: solid shaft and hollow shaft output.
Installation: base installation, flange installation and torque arm installation
Reduction ratio: 7.5-100, the combination can get a greater speed ratio.

2017年9月9日星期六

Introduction Planetary gear reducer

shaft mounting gearboxes main drive structure: planetary wheel, sun gear, external ring gear. In the case of
Planetary reducer for structural reasons, single-stage deceleration minimum of 3, the maximum is generally not more than 10, the common reduction ratio: 3.4.5.6.8.10, reducer series is generally not more than 3, but some large reduction ratio custom reducer Level 4 deceleration.
Relative to other Pellet mill gearbox, planetary reducer with high rigidity, high precision (single level can be done within 1 minute), high transmission efficiency (single level in 97% -98%), high torque / volume ratio, life-free maintenance Features. Because of these features, the planetary gearbox is mostly installed in the stepper motor and servo motor, used to reduce the speed, improve torque, matching inertia.
vertical mill gearbox rated input speed up to 18000rpm (with the size of the reducer, the greater the reducer, the smaller the rated input speed), industrial-grade planetary reducer output torque is generally not more than 2000Nm, special ultra-large torque planetary reducer Do more than 10000Nm. Operating temperature is generally around -25 ℃ to 100 ℃, by changing the grease can change its working temperature.

2017年9月4日星期一

Reducer use precautions

1, under normal circumstances, for long continuous work of the reducer, according to run 5000 hours or once a year to replace the new oil, long-term use of the reducer, before re-operation should also replace the new oil VF Worm Gearbox should be added with the original grade Of the oil, not with different grades of oil mixed with the same grades and different viscosity of the oil allowed to use. In the case of
2, the oil to wait for the coal mill gearbox to cool down after the risk of burning so far, but should remain warm, because the complete cooling, the oil viscosity increases, oiling difficulties. Note: To cut off the drive power, to prevent inadvertently power! In the case of
3, the work, when the oil temperature rise above 80 ℃ or oil tank temperature exceeds 100 ℃ and produce abnormal noise and other phenomena should stop using, check the reasons, must be troubleshooting, the replacement of lubricants before they can continue to run The In the case of
4, the user should have a reasonable use of maintenance rules and regulations, the operation of the reducer and the problems found in the test should be carefully recorded, the above provisions should be strictly enforced.