The phenomenon and processing method of tooth punching of gear coupling

The internal and external teeth of the gear coupling will wear out the teeth due to long-term use, which will affect the service life of the coupling. The reason for the matching of the teeth is that the coupling itself has no hardness and the surface of the gear is not quenched and tempered. Dip into the fire, the service life of the coupling is not high, and another reason is that the axial deviation of the coupling installation is increased, which causes the internal and external gears of the coupling to not be all matched. After long-term use of high speed and high torque, This phenomenon occurs.

The vibration damping performance of the gear coupling can be achieved by the energy in the rigid element, thereby removing and reducing the mutual impact force of the teeth during vibration, and increasing the service life of the entire coupling.

Gear couplings have small radial standards and large load-bearing capacity. They are often used in shaft transmissions that do not count as heavy load conditions. Gear couplings with good accuracy and dynamic balance can be used for transmission, such as the shaft transmission of dyeing steam turbines. .Since the angular compensation of drum gear couplings is greater than that of straight gear couplings, drum gear couplings are generally used. Straight gear couplings belong to the selected product, and those who choose it should try not to use it.Lack or lack of oil in the coupling of lifting parts or improper use of grease, which constitutes the calcification of grease, which makes the tooth surface unable to be lubricated, or the lack of lubrication causes serious tooth surface wear. In this case, replace the new grease and be punctual Write qualified grease oil to avoid oil leakage. If the oil quantity is reached, it can be avoided.

The levelness of the two shafts and the coaxial loss are too large, which exceeds the plan that the coupling can compensate, which makes the shaft tooth and the internal tooth mesh incorrectly, and the composition is not in contact with each other, and additional torque appears, and this additional torque can be decomposed It is the axial force acting on the inner gear ring. The magnitude of this force depends on the size of the fault, and is proportional to the fault. The greater the fault, the greater the force, which causes the axial displacement of the inner ring gear of the lifting fitting coupling. If the displacement is too large, it will be uncontrollable, resulting in serious gear wear and even broken teeth. The front and rear teeth cannot be meshed until they cannot be transmitted. This shortcoming is more difficult to deal with and needs to be discontinued, that is, realignment or realignment of the reducer side. Or align the side of the reel from the beginning, mainly to find out the part with a large deviation, so that you must first measure the deviation of the coupling to that side.

There are usually two processing methods for gear couplings, namely processing methods and envelope processing methods.In the actual production process, it may be that the operators themselves do not have the operating skills of the current position.When operating gear couplings, some incorrect operations and even illegal operations often occur.It may also cause an accident.It may also be due to the lack of regular maintenance of feed processing machinery by the staff in their daily work. Even for a long period of time, the equipment has been in overload operation, which will seriously affect the performance of feed processing machinery.

When installing the gear coupling, pay attention to it. Replace the original equipment with the original direction. If it is a newly designed and manufactured equipment, it must not interfere with other surrounding parts. Install according to the principle that the more the inner and outer tooth joint surfaces, the more.Gear couplings are generally inspected for the tooth surface meshing of the coupling during maintenance. The contact area is not less than 45% along the tooth height and not less than 65% along the tooth width. The tooth surface must not be severely corroded, worn or cracked; The full circle runout of the outer gear ring of the device is not more than 0.03mm, and the end circle runout is not more than 0.02mm.

If you need to remove the gear ring during maintenance, you must use tools instead of knocking, so as not to bend or damage the shaft.When reinstalling, heat the ring gear to about 200°C before installing it on the shaft.The interference between the outer gear ring and the shaft is generally 0.01~0.03mm; the intermediate tube or other parts should be assembled according to the original markings and data when reinstalling the intermediate tube or other parts; the bolts should be tightened evenly with a torque wrench.The gear coupling is one of the movable rigid couplings. The gear coupling uses internal and external tooth meshing to realize the torque and rotation transmission between the two halves of the coupling. It is suitable for connecting two concentric shafts. The drive shaft system.

The gear coupling has the performance of compensating the relative displacement of the two shafts. The gear coupling is composed of main parts such as an inner gear ring, a gear shaft sleeve and an end cover.The gear coupling has excellent performance and good economic benefits in actual production. The gear coupling itself has the advantages of good productivity and low power consumption. The gear coupling also has the advantages of small size, light weight, Easy to use, the price is not high and other advantages.The entire operation process of the gear coupling is relatively simple, the equipment is highly automated, and the labor required is small. Manual feeding or automatic conveyor feeding can be used.