The surface of the gear coupling needs to be carburized or quenched and tempered. Due to the different carburizing methods, the hardness of the tooth surface is different. Gas carburizing is a carburizing operation in which the workpiece is put into a closed carburizing furnace, gas infiltrant or liquid infiltrant is introduced, and activated carbon atoms are decomposed at high temperature and penetrated into the surface of the workpiece to obtain a high carbon surface layer. Craft. Tooth coupling solid carburizing is to pack the workpiece and solid carburizing agent together in a closed carburizing box, put the box into a heating furnace to heat to the carburizing temperature, and hold time to make the activated carbon atoms infiltrate the workpiece An early carburizing method of the surface.
The internal and external teeth of the gear coupling are calculated based on the relative size of the tooth number and module, so there will be no tooth punching during transmission. After the gear reducer of the ball mill is geared, in order to quickly resume production, which shaft and gear are generally replaced by which shaft is geared, it can not run in normally to ensure that the new and old gears mesh well. An impact phenomenon occurred during operation, which caused the gear to break easily. When checking the scale accuracy of the coupling with gear coupling key coupling equipment, it must be done in accordance with the drawings, skills, and skills conditions. Usually, you first check the shaping dimensions, such as shape, hole, and shaft diameter, and then check the positioning dimensions, such as margins, center distances, etc.
When looking at parts with messy shapes and complex scales, you should draw a table before viewing, first list the shaping scales in the table, and then list the positioning scales in the table, then measure in the order of the table, and write the measurement results In the actual measurement scale column, so that the scale will not be lost, and the viewing quality can be ensured. The coupling should be used to connect two coaxial lines or two parallel shafts to transmit torque. On the crane, the torque of the motor is transmitted to the low-speed shaft through the reducer and the coupling to complete the lifting of the load, the operation of large and small vehicles, etc., and the multi-purpose drum gear coupling on the crane can be rotated through the original keyway on the shaft by 90 ° or 180 °, reopen a new keyway, or add a pad that does not exceed the pad thickness by 15% on the key.
Repair welding of keyways is forbidden, and repairing of keyways for lifting organization is prohibited. The outer edge of the cantilever end of the output shaft is made into a tooth shape, which meshes with the internal gear plate fixed on the reel with bolts to transmit torque and compensate for the slight point of view error. The reel shaft is a rolling mandrel that does not transmit torque but is subject to bending moments. In order to prevent the lubricating oil in the coupling from flowing out and the dust from outside, a sealing cover is installed on the side of the gear disc coupling close to the reducer. The advantages of this coupling are good positioning performance, reliability, long service life and good grouping. The low-speed shaft of the reducer needs to be equipped with a special toothed shaft end, and general-purpose types cannot be used. The processing and manufacturing of the coupling is also messy.
