Hydraulic gear pump requirements

1, hydraulic gear pump installation, the base or bracket celebrate enough rigidity, hydraulic gear pump shaft in addition to the rotation generated by the torque, in principle, should not bear the role of other forces; the difference between the coupling shaft Axis is not greater than 0.05mm; hydraulic gear pump should be calibrated rotation direction, pay attention to the location of the oil inlet and outlet, large hole for the inlet.
2, the hydraulic system must be set safety valve, with the same device, the fuel tank must be dustproof, to prevent debris and other debris into the oil and clean regularly, suction pipe as short as possible, generally not more than 500mm, should be as much as possible. Less elbow, oil pipelines shall not leak.
3, the provisions of the use of working fluid: HC-8 # winter diesel engine oil, summer HC-11 # diesel engine oil, the working temperature of -10 degrees to 70 degrees.
Installation requirements:
1, The drive shaft of the pump is not allowed to bear the radial force and the axial force (for example, the length of the spline sleeve during installation and connection shall not exceed the effective length of the spline of the driving shaft of the pump, and the end of the power shaft and the coupling sleeve can not extend the flower The end of the key and the axial step any axial offset). Special circumstances such as the presence of radial force and axial force conditions, please contact the company special order.
2, the pump shaft and the prime mover output shaft installation coaxiality shall not be greater than 0.05mm, and the pump mounting plane and the mouth of the verticality of not more than 0.05mm. Coupling at both ends of the connection should also ensure that coaxial within 0.05mm.
3, the pump suction height of not more than 0.5m, and the inlet pipe diameter should ensure that the flow rate ≤ 2m / s, that is, into the oil pipeline diameter d ≥ 3.25 (mm), where Q is the pump inlet flow Q N.
4, the pump inlet pipe and flange should not leak.

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