The hydraulic catch wheel is used to control the axial movement of
the kiln body of the rotary kiln, so that the wheel belt and the
supporting wheel can be evenly worn over the full width, and at the
same time, the linearity of the center line of the kiln body can be
ensured, and the large and small gears can mesh well and reduce
Power consumption.
Working principle of hydraulic retaining wheel of rotary kiln
Although there is no big fault in the hydraulic system, poor
treatment may also cause kiln shutdown and production reduction.
Analysis of the reasons for the failure of the hydraulic wheel
system in rotary kiln:
The retaining wheel is improperly installed and the surface contact
is poor
When installing the retaining wheel, the center line of the
retaining wheel is required to coincide with the longitudinal
center line of the kiln body; Only in this way, the pure rolling
friction between the wheel belt and the retaining wheel surface is
ideal. Once the center line of the retaining wheel deviates greatly
from the longitudinal center line of the kiln body, the friction
force in the upward and downward directions will be generated on
the surface of the retaining wheel, resulting in the displacement
of the retaining wheel, the fracture of the upper gland bolt under
excessive stress, or even the failure of the whole retaining wheel.
When the retaining wheel is close to the rotary direction of the
kiln body, the rotation of the wheel belt will produce downward
friction on the surface of the retaining wheel, so that the thrust
bearing at the bottom is overstressed and fails.
Rotary kiln, on the other hand, usually some slope when
installation requirements, so the hydraulic gear wheel base also
have corresponding installation Angle, such gear wheel and belting
leather on the height direction of contact to reach more than 90%,
and once the Angle deviation is bigger, the contact surface will
appear only in the upper or lower would be less than 50% of the
area, thus affecting shaft bending distance; Torque and other
stress conditions cause shaft failure; The wheel belt and the
retaining wheel surface due to uneven processing or wear will cause
bad meshing, resulting in impact damage to the shaft.
| Material Standard | GB, EN, DIN, ASTM, GOST, JIS, ISO |
| Material Processing | Forging, Casting, Welding |
| Heat Treatment | Annealing, Normalizing, Q&T, Induction Hardening |
| Machining Tolerance | Max. 0.01mm |
| Machining Roughness | Max. Ra 0.4 |
| Module of Gear | 8-60 |
| Accuracy of Teeth | Max. ISO Grade 5 |
| Weight/Unit | 100 - 60 000kgs |
| Application | Mining, Cement, Construction, Chemical, Oil Drilling, Steel Mill,
Sugar Mill and Power Plant |
| Certification | ISO 9001 |
Rotary Kiln Catch Wheel
Rotary Kiln Catch Wheel
