Maintenance skills of tunnel lining walking system
The tunnel lining walking system is an important part of the lining trolley. It must be inspected, maintained, operated correctly, and adjusted carefully in use to keep it in a good technical state.
1. Clean and clean in time
After the lining trolley operation is completed, the sludge contaminated on the wheels and crawlers should be removed (washed) in time to keep the walking system clean, especially the end surface oil seal device of the supporting roller should be cleaned, inspected and maintained in time. In addition, be careful not to stain rubber tires with corrosive substances such as oil, acid, and alkali.
2. Maintain normal tire pressure and track tension
Before using the lining trolley, carefully check whether the tire pressure is normal (it can be slightly higher during transportation operations, lower during pothole operations; slightly higher in winter and lower in summer) to avoid flat tires or A puncture. If the track is too loose or too tight, it is easy to cause accelerated wear of track shoes, track shafts and wheels, so the appropriate tension must be maintained.
3. Check and adjust the front wheel alignment
If the front wheel is too large and the toe is too small, it is easy to cause eccentric wear during walking. The main reason is that the front axle bearing and sleeve are deformed by impact, or the fastening device of the front axle telescopic sleeve is loosened, which will change the positioning angle of the front wheel and cause abnormal wear. Therefore, you must always check whether the positioning angle of the front wheel is moderate during use, and adjust the toe.
4. Operate correctly and drive carefully
When the lining trolley is walking, you should be careful not to cross obstacles at high speed, and not to make sharp turns under heavy load; drive at low speed on uneven roads, and try to avoid emergency braking; climb slopes with heavy loads or on muddy roads When driving, the walking system should not be severely slipped.
5. Pay attention to operating conditions
When the lining trolley is operating in a low-lying environment, it is necessary to avoid trapping as much as possible. After the trapped vehicle, it must be removed by traction and promotion. The method of increasing the throttle (black smoke) must not be used to adjust the running system to idling. When working in dry land with sharp stubble and high stubble, it is necessary to prevent the tires from being punctured and the shaft from being entangled by the crop stalks.
The walking system affects the safety of the lining trolley. The walking system will inevitably fail after being used for a long time. Although we often maintain the lining too heavy, we ignore the maintenance of the walking system. If the deposits inside the walking system cannot be removed regularly, it is very easy to cause damage to the system, leading to high maintenance costs.