The rubber open mill gearbox is a speed and energy transfer device that is an indispensable device in engineering. The selection of gears for gear mills of rubber mills is also very important. Generally, quenched and tempered steel 40Cr is used, and the hardness is HRC54. The gear tooth surface made of this material has high contact strength and good wear resistance.
Due to the important gear transmission under the impact load, the number of pinions of the rubber open mill gearbox is selected to be 15. The modulus is 2, and the number of gears of the large gear is 225. At the same time, in order to ensure the minimum operating requirements of the gearbox, the design time is based on The shape of the box, taking into account the actual situation of the processing, the position tolerance of the box at the time of design is 4 levels of precision, and the precision must be above 5 when processing.
The design of the rubber open mill gearbox is reasonable and the operation is stable, but there are some notable problems in the design, manufacture and operation. Therefore, the gear machining must ensure the necessary precision to ensure its durability. At the same time, it must be small. The diameter of the pulley is large enough to meet the minimum requirements for the angle of the belt to be used.