Classification
Pinion
Ball mill small gear, also known as driving gear or transmission small gear, is the core component of the ball mill transmission system. Paired with a large gear ring meshing transmission, connecting the reducer and transmission shaft, the power is transmitted to the large gear to drive the operation of the ball mill cylinder, which belongs to high-speed heavy-duty vulnerable parts.
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Product details
1、 Product Introduction
Ball mill small gear, also known as driving gear or transmission small gear, is the core component of the ball mill transmission system. Paired with a large gear ring meshing transmission, connecting the reducer and transmission shaft, the power is transmitted to the large gear to drive the operation of the ball mill cylinder, which belongs to high-speed heavy-duty vulnerable parts.
2、 Core role
1. Active power input, meshing with large gears to reduce speed and increase torque;
2. Endure impact loads, alternating torques, and long-term low-speed heavy load operation;
3. Stabilize transmission, reduce vibration, and ensure continuous operation of the mill;
4. The entire transmission assembly is used in conjunction with the transmission shaft, bearing seat, and coupling.
3、 Structural characteristics
1. Integrated forged/cast steel structure, mostly with integrated shaft and teeth, high strength and not easy to break;
2. Tooth type classification: straight teeth, oblique teeth, oblique teeth are quieter, mesh more stable, and have stronger bearing capacity;
3. Small size, high speed, and fast wear, belonging to the high-frequency replacement parts of ball mills;
4. Installed on the small gear shaft assembly, used with matching bearings, bearing seats, and seals.
4、 Common Materials&Craftsmanship
● Mainstream materials: 42CrMo, 35CrMo alloy forged steel
● Heat treatment: overall quenching and tempering+high-frequency quenching of tooth surface
Advantages: high hardness, wear resistance, fracture resistance, impact resistance, and pitting corrosion resistance
● Small grinder: Made of ZG45 cast steel, cost-effective model
5、 Vulnerable faults
● Wear and tear on the tooth surface, tooth biting, tooth breakage, and pitting corrosion
● Keyway wear, shaft head strain, bending deformation
Improper meshing clearance can cause vibration, abnormal noise, and high temperature
6、 Supporting applicable equipment
Wet ball mill, dry ball mill, cement ball mill, mineral processing mill, lime mill, desulfurization mill, and rod mill are commonly used.
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