Shaft structure: Shaft gear with keyway

Length:3340mm

Diameter:290mm

Quality standard: Standard DIN JIS ASTM GB

Processing: Forging-Milling-Grinding Teeth

Raw Material 42CrMo, 20CrMnTi, 20CrNiMo, 20CrMnMo

Application: Rolling Mill,ball mill

Teeth shape:helical gear

Teeth Direction:left

Angle :25 degree press angle

Teeth number:21pcs

Service OEM/ODM

Delivery Time:100 days

Package: Wooden Case

The gear shaft of the ball mill transmits power to the grinding cylinder through gear transmission to achieve material crushing. Its working principle includes:

1. Gear meshing transmits power

2. Bearing supports rotation

3. Grinding media in the grinding drum crushes the material

 

In design, the use of gear shafts is generally limited to the following situations:
1. The gear shaft is generally a small gear (a gear with a small number of teeth).
2. The gear shaft is generally at the high speed level (that is, the low torque level).
3. The gear shaft is generally rarely used as a sliding gear for speed change, and is generally a fixed-running gear. First, because it is in a high-speed stage, its high speed is not suitable for slip speed change.
4. The gear shaft is a combination of the shaft and the gear. However, when designing, the length of the shaft should be shortened as much as possible. If it is too long, it is not conducive to the upper gear hobbing machine. Second, the support of the shaft is too long, which causes the shaft to be thickened to increase the mechanical strength (such as rigidity, deflection, bending resistance, etc.).

 

In the entire process of shaft processing, sufficient heat treatment procedures should be arranged to ensure the mechanical properties and processing accuracy requirements of the gear shaft, and to improve the processing performance of the work piece.
Generally, normalizing treatment is arranged first after the shaft blank is forged to eliminate the internal stress in the forging, refine the grains, and improve the cutting performance during machining.