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Internal meshing high pressure gear pump
| Author : Xiong Date : 8/1/2014 10:18:03 AM |
Internal meshing high pressure gear pump
Internal meshing high pressure gear pump than external gear high-pressure gear pump with compact structure, small size, light weight, strong self-priming capacity, flow pulsation is small, low noise advantages.The downside is: processing more difficult.
(a) working principle
Figure 3 a 19 for pressure method of high pressure gear pump structure.
Method of high pressure gear pump is mainly composed of pump body and sides 5, 6, 3 pinion (driving gear) 13, internal gear gear (passive) 4, limit pin 9, crescent partition (filler piece), guide pin, 10, 11, floating bearing block 12, etc.
Crescent clapboard is the role of 10 oil absorption cavity A and B is separated, the oil in the pressure of making may not understand one another.The number of teeth on the internal gear 4 must be at least two more than the number of teeth on the pinion 13 above.When driving gear according to this direction, at the exit of tooth meshing gear (i.e., oil absorption cavity), working volume increases, the formation of partial vacuum and inhale the oil in gear tooth l into mesh (that is, the pressure oil cavity), reduce working volume, the oil is through the bottom of the internal gear radial holes were squeezed out.
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The above: The performance of the pressure switch test
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Pressure switch
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