Performance characteristics and maintenance methods of transmission box

The gear bearing capacity of the gear with the soft tooth surface of the transmission box is relatively low, but it is easier to manufacture and has good running-in performance. It is mostly used in general machinery with no strict restrictions on transmission size and weight, and small-scale production. Because the small wheel bears the heavier burden among the paired gears, in order to make the working life of the large and small gears roughly equal, the hardness of the tooth surface of the small wheel is generally higher than that of the large wheel. Hardened gears have a high load-carrying capacity. After the gears are cut, they are quenched, surface quenched or carburized and quenched to increase the hardness. But in the heat treatment, the gear will inevitably be deformed, so grinding, grinding or fine cutting must be carried out after the heat treatment to eliminate the error caused by the deformation and improve the precision of the gear.

the

Maintenance of transmission box:

the

1. Store in a cool, dry and ventilated room; for simple equipment such as plows, rakes, and compactors, you can store them in the open air, but they should be stored in a place with high terrain, dry and not exposed to direct sunlight. It is best to build a shed Covering; all parts that are in direct contact with the ground should be supported by wooden boards or bricks; the peeled off protective paint should be repainted...

the

2. Pay attention to anti-corrosion. After the agricultural machinery is finished working in the field, it is necessary to remove the external dirt, clean the seeds, chemical fertilizers, pesticides and crop residues in the working machinery, and wash it with water or oil if necessary.

the

3. Clean the machine tool and relubricate it. All friction working surfaces, such as plowshares, plow walls, furrowers, hoe shovels, etc. must be wiped clean and then coated with engine oil, preferably with stickers to reduce the chance of contact with air.

the

4. Anti-rot and mildew. Wooden parts are susceptible to decay, cracking and deformation due to the action of microorganisms, as well as rain, wind and sun. The effective storage method is to paint the surface of the wood and place it in a dry place.

Transmission box features:

1. High transmission accuracy, belt transmission cannot guarantee accurate transmission ratio, and chain transmission cannot achieve constant instantaneous transmission ratio, but modern involute gear transmission ratio is accurate and constant in theory. This is not only an important requirement for precision machinery and instruments, but also important for reducing dynamic loads and achieving smooth transmission at high speeds and high loads.

the

2. It has a wide range of applications. The transmission power range of gear transmission is very wide, from 0.001 watts to 60,000kW. The peripheral speed is very slow, up to 150 meters per second, which is difficult to compare with belt transmission and chain transmission.

the

3. The transmission between any two shafts can be realized in spaces such as parallel shafts, cross shafts and staggered shafts, which is impossible in belt drive or chain drive.

the

4. Reliable work and long service life.

the

5. The transmission efficiency is relatively high, generally 0.94 to 0.99.