Hydraulic transmission is a hydraulic system composed of hydraulic components (hydraulic oil pump), hydraulic control components (various hydraulic valves), hydraulic actuator components (hydraulic cylinder and hydraulic motor, etc.), hydraulic accessories (pipelines and accumulators, etc.) and hydraulic oil. Hydraulic transmission has many advantages over other transmission methods, so hydraulic transmission is very common. Luoyang Broadong hydraulic Xiaobian will give you a summary.
Hydraulic transmission advantages:
1, the power mass ratio is large, under the condition of transmitting the same power,
The hydraulic device is small in size, light in weight and compact in structure.
2, through the flow control, it can be convenient to achieve a wide range of no speed regulation: the speed range can reach 2000:1, the speed adjustment can also be carried out in the working process; Through pressure control, multiple continuous power can be easily obtained and can be easily used for overload protection; Through direction control, the motion direction of the actuator can be easily changed. Pressure energy can be accumulated by using an accumulator. With electrical control, remote control can be easily achieved.
3, the hydraulic transmission works smoothly, the reversing impact is small, and it is easy to achieve frequent reversing.
Hydraulic cylinder
4, hydraulic transmission is easy to achieve overload protection, because the transmission medium is oil, can achieve self-lubrication, long service life.
5, standardization, serialization, high degree of universality, is conducive to shorten the design cycle, manufacturing cycle and reduce costs.
6, sealed liquid is a flexible power source, with excellent force transfer performance. Replacing mechanical parts with pipes and hoses can eliminate layout problems.
7, force amplification, a small force can move and control a much larger force.
8, smooth, the hydraulic system is stable and quiet during operation, and the vibration is maintained in the degree.
9, simple, this system has almost no moving parts and fewer wear points, the system can be automatically lubricated.
10, simple, compared with complex mechanical devices, the component design is simpler. Hydraulic motors, for example, are much smaller in size than motors that produce the same amount of power.
11, economic, simple, compact, so that the system economy and energy saving, the system in the use of the process, almost no loss of power.
12, Ann, relief valve protection system, not due to overload damage.
Disadvantages of hydraulic transmission:
1, due to the leakage in the hydraulic transmission and the compressibility of the liquid, so that this transmission can not ensure a strict transmission ratio.
2, hydraulic transmission has more energy loss (leakage loss, friction loss, etc.), therefore, the transmission rate is relatively low.
3, the hydraulic transmission is more sensitive to the change of oil temperature, should not work at a higher or lower temperature, should not be used for long-distance transmission.
4, hydraulic transmission in the failure is not easy to find out the cause, high maintenance requirements.
5, must keep clean and use appropriate hydraulic oil, to consume oil resources, oil leakage will pollute the environment.
