Scraper Winch's basic sealing requirements are sealed, safe and reliable, long service life, compact structure, simple system, convenient manufacturing and maintenance, and low cost. Most seals are consumables and should be interchangeable, standardized and serialized.
The type and purpose of the sealing material should meet the requirements of the sealing function. Since the medium to be sealed is different and the working conditions of the equipment are different, the sealing material is required to have different adaptability. The requirements for the sealing material are generally: the sealing material has good compactness and is not easy to leak the medium; has suitable mechanical strength and hardness; has good compressibility and resilience, and has small deformation; does not soften at high temperature, does not decompose, at low temperature Not hardened, not brittle. crack.
The performance of the Scraper Winch is very good, so it is also widely used in the market. Many users choose a mining winch when purchasing a winch, but they can operate as required during use, otherwise it is prone to failure. In particular, the winch protection system is prone to problems, but the problem is usually the cause of the brakes. Just replace it in time, you can.
There is a problem with the mining winch found on the protection system. For example, the brake shoe can protect the problem, the safety circuit is gone, you have to replace the brake, and so on. Which winches have electrical components and hydraulic station components, this may be wrong, but not a big mistake, you need to know the system to be repaired. The deceleration point is on the depth indicator. Change the position of the upper and lower deceleration points and the travel switch. I want to let it slow down where it is.
Inverter winch, inverter fault, line fault, control program is generally no problem, can not be changed, protection is no problem. The hydraulic station is prone to failure, not the hydraulic pump is prone to failure. In addition to the problem of the combustion pump, for example, the valve is also burned, or needs to be adjusted, and the tubing is leaked or blocked. Usually, everything is not bad except for bad parts. In summary, if you want to fix this problem, then understand the schematic. It doesn't matter if you don't say it. Explosion-proof winch
Scraper Winch's hydraulic winches use the same DC, AC cutting resistance, and AC variable-frequency cutting resistance winches. At present, the winch pressure adjustment method mainly uses an electrohydraulic proportional valve for pressure regulation. That is, the electronic control system sends a control voltage or current to the proportional valve, and the control voltage (flow) is substantially linear with the system pressure. The greater the voltage (flow), the greater the pressure at the hydraulic station.
