The important role of gear forging shaft
2022-11-14
Gear shaft forging According to the shape of the axis, the shaft can be divided into crankshaft and straight shaft two types. According to the bearing capacity of the shaft, it can be divided into:
(1) Rotating shaft, working under both bending moment and torque, is the most common shaft in machinery, such as a variety of reducer in the shaft.
(2) mandrel, used to support the rotating parts only bear bending moment without transferring torque, some mandrel rotation, such as the axle of railway vehicles, some mandrel is not rotating, such as supporting pulley shaft.
(3) The drive shaft is mainly used to transmit torque without bearing bending moment, such as the long optical shaft of the crane moving mechanism and the driving shaft of the automobile.
In the design, the use of gear shaft is generally no more than the following situations:
1. The gear shaft is generally a pinion (gear with fewer teeth).
2, the gear shaft is generally in the high speed level (that is, the low torque level)
3. The gear shaft is rarely used as the sliding gear of the transmission, and it is generally a fixed running gear. One is that the high speed is not suitable for sliding transmission at the high speed.
4, gear shaft is a shaft and gear synthesis of a whole, however, in the design, or try to shorten the length of the shaft, too long is not conducive to the hobbing machine processing, the second is the shaft support is too long lead to the shaft to thicken and increase the mechanical strength (such as rigidity, deflection, bending, etc.).
The gear and gear shaft in the reducer are important transmission parts, which are required to bear the bending moment and torque when working, and have better comprehensive mechanical properties. The tooth part is required to bear the larger bending stress, contact stress and friction, which requires higher strength, toughness and wear resistance. Gear and gear shaft materials are generally 45 steel or low and medium alloy steel, with higher strength and better plastic toughness. Therefore, the forming process of these parts is usually achieved by forging.
(1) Rotating shaft, working under both bending moment and torque, is the most common shaft in machinery, such as a variety of reducer in the shaft.
(2) mandrel, used to support the rotating parts only bear bending moment without transferring torque, some mandrel rotation, such as the axle of railway vehicles, some mandrel is not rotating, such as supporting pulley shaft.
(3) The drive shaft is mainly used to transmit torque without bearing bending moment, such as the long optical shaft of the crane moving mechanism and the driving shaft of the automobile.
In the design, the use of gear shaft is generally no more than the following situations:
1. The gear shaft is generally a pinion (gear with fewer teeth).
2, the gear shaft is generally in the high speed level (that is, the low torque level)
3. The gear shaft is rarely used as the sliding gear of the transmission, and it is generally a fixed running gear. One is that the high speed is not suitable for sliding transmission at the high speed.
4, gear shaft is a shaft and gear synthesis of a whole, however, in the design, or try to shorten the length of the shaft, too long is not conducive to the hobbing machine processing, the second is the shaft support is too long lead to the shaft to thicken and increase the mechanical strength (such as rigidity, deflection, bending, etc.).
The gear and gear shaft in the reducer are important transmission parts, which are required to bear the bending moment and torque when working, and have better comprehensive mechanical properties. The tooth part is required to bear the larger bending stress, contact stress and friction, which requires higher strength, toughness and wear resistance. Gear and gear shaft materials are generally 45 steel or low and medium alloy steel, with higher strength and better plastic toughness. Therefore, the forming process of these parts is usually achieved by forging.
this is open die forging produced by tongxin precision forging company:
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