Spur bevel gears are widely used in the differentials of automobiles, tractors, motorcycles, tanks and other walking machinery. They have a wide range of applications, large demand and easy wear. Using traditional machining method to produce spur bevel gear has the advantages of slow speed, low efficiency and poor...
The closed precision forging process of spur bevel gear is simulated and analyzed, the influence law of its process parameters on the forming quality is studied, the elastic deformation of the die and the elastic recovery deformation of the forging are analyzed, and the compensation design method of the...
The tooth profile of hot forging bevel gear is the basis for designing and inspecting the tooth profile of die cavity. It is obtained by considering the thermal expansion of forgings. According to whether the temperature field in the forging is uniform at the end of forging, the thermal...
When forming spur bevel gears by “one fire and two forging”, the surface of the die cavity is in direct contact with the high-temperature gear blank. After the forgings bear high thermal load are out of the die, they need to use water-soluble graphite to cool and lubricate the...
The figure shows the dynamic model of spiral bevel gear transmission system with additional damping ring under elastic support. Establish a rectangular coordinate system, the coordinate origin is the intersection of the axes of two spiral bevel gears, and the x-axis and y-axis are the axes of pinion and...
Fig. 1 shows the forging drawing of planetary gear and half shaft gear. When formulating the forging drawing of bevel gear, the following aspects should be considered: (1) When determining the parting surface of open die forging bevel gear, the parting surface is composed of back cone parting surface...
Because the “cantilever beam” model is quite different from the real spur gear, the material mechanics method is difficult to truly reflect the influence of complex tooth profile and transmission system on the strength and deformation of spur gear. According to the plane elasticity theory, many scholars apply appropriate...
Gear is an important part widely used in automobile, machinery, aerospace and other industries. Gears processed by precision die forging process can be directly used due to good surface quality and high dimensional accuracy without subsequent cutting, which greatly improves the material utilization and production efficiency and reduces the...
In the “one fire two forging” process for forming bevel gears, the tooth profile of hot forgings is obtained by considering the thermal expansion of forgings on the basis of the tooth profile of room temperature forgings. Therefore, the tooth profile of room temperature forgings should be designed before...
The finite element simulation software DEFORM-3D is used to simulate the forging process of “one fire two forging” of planetary gears, and the simulation process parameters are listed in the table. The purpose of pre forging simulation is to study the influence of preform size on metal flow law...