The replacement time of the transmission parts of the concrete trowel varies depending on many factors.
1. Drive chain
- Under normal working conditions: If the trowel is used in a relatively ideal working environment (clean, suitable temperature, normal load) and is regularly maintained, the drive chain can generally be used for about 1000-1500 hours. For example, the service life of the trowel chain used in a small indoor concrete prefabricated parts processing workshop may be close to this upper limit.
- Under harsh working conditions: In a working environment with a lot of dust, high humidity or frequent overload shock, the wear of the chain will be aggravated. For example, at an outdoor construction site, the chain may be eroded by sand, dust and rain, and due to frequent starts and stops during construction, sudden changes in load, etc., the chain may need to be replaced in 500-800 hours.
2. Drive belt
- Under normal working conditions: The service life of a good quality drive belt is about 800-1200 hours under normal use and maintenance conditions. For example, in some industrial plants, trowels are used for daily maintenance of the floor. The working environment is relatively stable, and the belt may be used for a long time.
- Under harsh working conditions: When the belt is in a high temperature and high humidity environment for a long time, or is contaminated by oil or chemicals, its performance will decline rapidly. For example, in a trowel used in a factory workshop with the risk of chemical leakage, the belt may have serious problems such as slipping and aging in 400-600 hours and need to be replaced.
3. Gears
- Under normal working conditions: For gears with high precision and good materials, they can generally be used for 2000-3000 hours under normal working conditions. For example, in a trowel used in an indoor high-precision concrete product workshop, the gear wears relatively slowly.
- Under harsh working conditions: Under high load, frequent start and stop, poor lubrication or foreign matter entering the gearbox, the gear tooth surface will have serious wear and tooth root fatigue fracture. For example, in the construction of heavy-loaded port concrete dock floors, gears may need to be replaced in 1000-1500 hours.
In addition to the reference working time, the actual usage conditions should also be considered when judging whether the transmission parts need to be replaced. For example, when the transmission parts are loose, slipping, severely worn (chain links are elongated by more than 3% - 5%, belts are cracked or peeled, gear tooth surfaces are worn by more than 0.5 - 1mm, etc.), or produce abnormal noise or vibration, the transmission parts should be inspected and replaced in time even if the reference working time is not reached.