yuken hydraulic pump hydraulic pump for log splitter

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The specific role of the high-pressure pumpIncrease the fuel pressure, high-pressure injection, to achieve the best atomization, high-pressure pump is the power source for critical uses as jacks, upsetting head, a Zhahua, extruders and other hydraulic devices.High-pressure pump installation sequence is as follows: During the installation of the high-pressure pump being, in order to avoid debris to fall into the machine, all units should cover the perforations. The unit on the basis of anchor bolts buried in between the base and the base, using a pair of wedge pad for correction. Correction shaft and motor shaft concentricity, on the road linking the outer shaft, the allowable deviation 0.1 mm; two coupling plane gap should ensure that 2 to 4 mm, (a small pump to take a small value) gap should be uniform, allowing difference 0.3 mm. After the connected piping and determine the motor direction of rotation, connect the coupling, and then check it again concentric aromatic shaft. After the actual test run the unit 2 to 3 hours, for a final check, if no adverse phenomenon, is considered qualified to install. In the commissioning process, check the bearing temperature and vibration are as follows: Loosen the coupling large, with a horizontal instrument were placed on the electric oil pump shaft and the base, by adjusting the wedge pad, correction unit level, tighten the bolt appropriate to Anti-around. In order to prevent pipeline debris into the pump, to the newly installed pipeline should be installed in the pump glue filter, the effective cross-section should be greater than 2 to 3 times the suction pipe section.Piston overhaul(1) Check the plunger there is no scar and corrosion phenomenon, when necessary, should be replaced new.(2) Check the plunger deputy with the situation. The plunger tip is inserted into the plunger comprising a tilt of about 60 °, if the plunger can slow the decline in its role as a good fit.(3) Check the plunger seal deputy. Hold the plunger sleeve, two fingers to block the plunger tip and the side of the inlet. Pull the plunger with the other hand, feel a greater attraction, relax plunger is retracted immediately situ, indicating piston secondary seal is good, or to replace the piston pair.(4) Check the oil pressure valve annulus vice is not worn or injuries have stepped phenomenon, when necessary, should be replaced.(5) check out the situation with the deputy of the oil valve. Use your fingers to block the oil valve under the hole, with the other fingers to gently press down the valve when the valve finger from the upper end of time, it can automatically spring back into place, it indicated that the valve secondary seal is good, otherwise should replace the oil valve deputy.(6) Check quite cylinder. Standard fuel pump body and the very cylinder gap between the 0 ~ 0.03mm, such as more than 0.2mm, it should replace the parts.Gap (7) Check the plunger flange and the control sleeve between the grooves, should be 0.02 ~ 0.08mm, such as more than 0.12mm, you must replace the control units.Electric pumps are providing pressurized fluid to the hydraulic drive a hydraulic components, is a type of pump. Electric hydraulic pump function is to power machine (such as an internal combustion engine and electric motor, etc.) of the mechanical energy is converted to pressure energy of the liquid. Output flow can be adjusted according to need is called a variable pump, flow can not be adjusted is called a metering pump. Electric hydraulic pump system often used gear pumps, piston pumps and pump three blades. Gear pumps: smaller, simpler structure, for the cleanliness of the oil is not critical, cheaper; however unbalanced shaft by force, badly worn, leaking large. Vane pumps: vane pump into a double-acting and single acting pumps. The pump flow evenly, smooth operation, low noise, operating pressure and volumetric efficiency is higher than a gear pump, the structure is more complex than the gear pump.