Introduction of internal gear pump

(a) internal meshing gear pump is the use of gear internal meshing principle, internal and external gear circle close to one side, the other side is separated by the pump cover "crescent". The active inner gear on the main shaft drives the outer gear to rotate in the same direction, and the gears separate from each other at the inlet to form negative pressure and suck in the liquid, and the gears are continuously embedded and meshed at the outlet to squeeze the liquid out. Due to this unique structure, it is especially suitable for conveying medium with high viscosity. The viscosity range is 0.2-1000000cp.

 

Internal gear pump can be reverse transmission, as long as the change of motor steering can be;

 

Internal gear pump body can be turned, the import and export position into a right Angle, easy to choose the import and export position;

 

Internal gear pump in the pump body, end cover, bearing seat are connected with convenient thermal insulation or cooling medium access interface.

 

Internal gear pump has the following advantages: no oil trapped, smooth transmission, high efficiency, low noise, long service life.

 

(2) internal gear pump is suitable for conveying petroleum, chemical industry, coating, dye, food, grease, medicine and other industries in the Newton liquid or non-newton liquid, the type of liquid transport can be light, volatile liquid, until heavy, viscous, or even semi-solid liquid.

 

(3) the material of internal gear pump is cast iron, cast steel, stainless steel, etc

 

(4) the support piece of internal gear pump, the modified involute tooth profile, both internal and external gear with activities link separate high and low pressure chamber, and formed in the radial pressure compensation, make internal and external tooth addendum and link between form little gap seal, the axial dynamic compensation plate guarantees the good seal axial clearance, makes the internal leakage of the pump are minimized. Low pressure 12Mpa, medium pressure 21mpa, high pressure 33mpa. This structure has high volume efficiency, complex structure and high manufacturing cost. It is suitable for conveying all kinds of light and volatile liquids to heavy and viscous liquids or even semi-solid liquids. Widely used in petroleum, chemical, oil, paint and other industries.

 

Linear conjugate internal gear pump, the internal and external gears are separated by fixed lunula, the gears are engaged by linear conjugate. Linear conjugate inner gear pump its long life depends on the wear resistance, internal mechanical surface and between the functional parts of a layer of oil film protection layer, almost no wear, even if the use of general hydraulic oil, it is not easy to wear parts. In addition, the use of bipolar pressure bearing pressure difference principle, in increasing the working pressure at the same time, but also improve the working conditions of the pump, extend the service life of the pump. There are three pressure stages: low pressure 8Mpa, medium pressure 16mpa and high pressure 32mpa. Oil outlet relative oil suction mouth position have 0 °, 90 °, 180 °, 270 °, four convenient user choose cloth tube. The pump has simple structure and low manufacturing cost.

The above:Hydraulic gear pump mechanical seal how to assemble?