What are the risks of poor gear contact in ZLY280-20-2 reducer?

Poor contact of gears in ZLY280-20-2 reducer can cause chain risks from four dimensions: tooth surface damage, transmission failure, damage to associated components, and safety and economic losses. The specific risks are as follows:

1. Rapid damage to the tooth surface and cliff like shortening of gear life

Poor contact leads to local stress concentration on the tooth surface, with unit area pressure far exceeding the design value. In the short term, defects such as tooth surface pitting, peeling, and bonding may occur; If the eccentric load is severe, cracks are prone to occur at the tooth tip or root, which can develop into tooth tip collapse angle and tooth root fracture. The normal service life of the gear can be shortened by more than 60%, and it may even fail within a few weeks.

2. Transmission performance failure leading to loss of control of load side operating conditions

Sudden increase in vibration and noise: Periodic impact caused by meshing bias load, operating noise exceeding 90dB, vibration amplitude increased by more than 50% compared to normal working conditions, affecting the stability of the entire machine.

Unstable torque transmission: Insufficient contact area leads to fluctuations in output torque, resulting in fluctuating speed and decreased positioning accuracy at the load end; In severe cases, the tooth surface slips and cannot transmit the rated torque, causing the equipment to shut down.

3. Chain damage to associated components significantly increases maintenance costs

Bearing and shaft system damage: Poor gear contact can cause axial misalignment, which can result in additional radial force on the bearing, uneven roller wear, accelerated temperature rise, and a 40% reduction in bearing life; Long term unbalanced loading can also cause bending deformation of the shaft system, further deteriorating the meshing state.

Box deformation: Vibration and impact are transmitted to the box through the shaft system. When the anchor bolts become loose or the foundation rigidity is insufficient, the coaxiality of the box bearing holes will exceed the tolerance, forming a vicious cycle of "poor contact vibration box deformation more serious poor contact".

4. The prominent safety hazards have caused production interruptions and economic losses

Risk of sudden shutdown: gear breakage, bearing locking and other faults can cause unplanned shutdown of the production line, affecting production progress; If used for key equipment such as lifting and conveying, it may cause safety accidents such as load falling and material accumulation.

The maintenance cost has increased dramatically: not only do core components such as gear pairs and bearings need to be replaced, but the box or shaft system may also need to be repaired, with maintenance costs 3-5 times higher than normal maintenance; The production capacity loss caused by simultaneous shutdown far exceeds the cost of accessories.