When the pump is filled with liquid, the impeller rotates to generate centrifugal force, and the liquid in the impeller channel is thrown to the periphery under the action of centrifugal force, and flows into the pump casing to form a vacuum in the center of the impeller. The liquid is sucked in by atmospheric pressure. The pool flows into the impeller. In this way, the liquid is continuously sucked in and out. The liquid that gains energy in the impeller has greater kinetic energy when it flows... Read More
Compared with mechanical transmission, electric drive and pneumatic transmission, hydraulic transmission has the following advantages: 1) Hydraulic transmission can realize stepless speed regulation in operation, which is convenient and has a wide range of speed regulation, up to 100:1 ~ 2000:1. 2) : under the same power, the hydraulic transmission device is small in size, light in weight, small in inertia and compact in structure (for example, the weight of the hydraulic motor is only 10-20% of... Read More
The elastic coupling is usually used between the transmission shaft of high pressure gear pump and the output shaft of motor, and its coaxiality tolerance shall be less than 0.1mm; if the sleeve type coupling is selected, the coaxiality error shall be less than 0.05mm. It is forbidden to drive pump shaft directly with V-belt. The rotation direction of the gear is clearly specified, so it is not allowed to be confused during installation. Suction and drain ports If the diameter of suction port an... Read More
1. Select the hydraulic circuit with high transmission efficiency and appropriate adjustment mode. At present, the throttling speed regulating system of quantitative pump is generally used, and the: rate is low (< 0.385). This is because the efficiency of quantitative pump and hydraulic cylinder is about 85% and 95% respectively, and the loss of directional valve and pipeline is about 5%. Therefore, even if the flow control is not carried out, there will be 25% power loss. At least half of th... Read More
High pressure hydraulic gear pump and ordinary gear pump have the following differences: (1) The shape of high pressure hydraulic gear pump adopts rectangular five piece combination type, which is easy to process, neat and beautiful; (2) The noise level of high pressure hydraulic gear pump is low, and the noise value under maximum load can reach a level of product standard (ordinary gear pump is generally in level B and C); (3) The volumetric efficiency of high-pressure hydraulic gear pump can r... Read More