The Cause of The Heating of Hydraulic System for Crawler Crane
Crane undercarriage parts of the hydraulic system oil heating, high temperature, will result in the operation of inflexible, discontinuous operation, weak work and work pressure to reduce failure. So you want to know why it's hot?
Let's take a look at it:
1, The fuel tank volume is too small, heat dissipation area is not enough, not installed oil cooling device, or even though the cooling device but its capacity is too small.
2, According to the rapid speed of the selection of pump capacity of the quantitative pump oil system, in the work will be most of the excess flow in high pressure from overflow valve overflow and fever.
3, The system in the unloading circuit failure or due to not set unloading circuit, stop working when the pump can not unload, pump all the flow in high pressure overflow, resulting in overflow loss and fever, resulting in oil-liquid fever.
4, The system tube passing fine too long, bending too much, local pressure loss and along the process pressure loss is big.
5, The component precision is not enough and the assembly quality is poor, the relative motion between the mechanical friction loss is big.
6, The coordination part of the clearance is too small, or the use of wear after the gap is too large, internal and external leakage volume, resulting in large volume loss, such as the volume efficiency of the pump reduced, heat fast. 7, the crane chassis parts of the hydraulic system work pressure adjustment than the actual need for higher.
Sometimes because the seal is too tight, or due to seal damage, leakage increases and have to adjust high pressure to work.
8, The climate and operating environment temperature is high, resulting in higher oil temperature.
9, The choice of oil viscosity improper, viscosity large viscous resistance, viscosity is too small leakage increase, both of which can cause oil heating. Please pay more attention to these problems in the use of crane chassis parts, to prevent the occurrence of dangerous, more wonderful content please continue to pay attention to our website, look forward to have a cooperation with you in the future.
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