Advantages and disadvantages of hydraulic transmission

Hydraulic transmission systems have been increasingly widely used in various fields due to their unique advantages, such as wide process adaptability, excellent control performance, and low cost. However, due to the objective instability of the quality of components and auxiliary components, as well as subjective improper use and maintenance, and the fact that all components and working fluids in the system work in closed oil circuits, they are not as intuitive as mechanical equipment, nor can various detection instruments be used to conveniently measure various parameters. In hydraulic equipment, only a limited number of pressure gauges, flow meters, etc. are used to indicate the working parameters of certain parts of the system, making it difficult to measure other parameters, Moreover, there are many possible root causes of general faults, which brings certain difficulties to the diagnosis of hydraulic system faults.



advantage:

(1) Due to its small size and light weight, the inertia force is relatively small, and there will be no significant impact when suddenly overloaded or stopped;
(2) It can smoothly and automatically adjust the traction speed within a given range, and can achieve stepless speed regulation;
(3) Easy commutation, it can easily achieve the conversion of working mechanism rotation and linear reciprocating motion without changing the direction of motor rotation;
(4) The hydraulic pump and hydraulic motor are connected by oil pipes, and the spatial arrangement is not strictly limited to each other;
(5) Due to the use of oil as the working medium, the components can self lubricate between the relative moving surfaces, resulting in low wear and long service life;
(6) Easy to operate and control, with a high degree of automation;
(7) Easy to achieve overload protection.

Disadvantages:
(1) The use of hydraulic transmission requires high maintenance requirements, and the working oil should always be kept clean;
(2) High precision requirements for manufacturing hydraulic components, complex processes, and high costs;
(3) The maintenance of hydraulic components is complex and requires a high level of technical proficiency;
(4) Using oil as the working medium poses a fire hazard on the working face;
(5) Low transmission efficiency.