CN102927003A - Special gear pump - Google Patents
Special gear pump Download PDFInfo
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- CN102927003A CN102927003A CN2012105188959A CN201210518895A CN102927003A CN 102927003 A CN102927003 A CN 102927003A CN 2012105188959 A CN2012105188959 A CN 2012105188959A CN 201210518895 A CN201210518895 A CN 201210518895A CN 102927003 A CN102927003 A CN 102927003A
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- China
- Prior art keywords
- axis hole
- composite material
- end cap
- gear
- outer end
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- 239000002131 composite material Substances 0.000 claims abstract description 66
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 37
- 239000000956 alloy Substances 0.000 claims abstract description 37
- 229910000765 intermetallic Inorganic materials 0.000 claims abstract description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 14
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000010955 niobium Substances 0.000 claims abstract description 8
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 238000005275 alloying Methods 0.000 claims description 28
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 239000011651 chromium Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005272 metallurgy Methods 0.000 claims description 2
- 240000003936 Plumbago auriculata Species 0.000 claims 1
- 239000000919 ceramic Substances 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 4
- 210000003660 reticulum Anatomy 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 241000209456 Plumbago Species 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000000713 high-energy ball milling Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005551 mechanical alloying Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The invention provides a special gear pump. The special gear pump has the structure that an external threaded suction inlet and an external threaded outlet are positioned on two outer sides of a pump body; two end surfaces of the pump body are vertical to two semicircular holes; a front external end cover and a rear external end cover respectively cover the two end surfaces, and are fastened by end cover bolts; a main alloy gear and a secondary alloy gear are engaged with each other; composite material compensating discs are arranged between the main alloy gear and the front external end cover as well as between the driven alloy gear and the front external end cover; one end of a main cylindrical spring is fixed to a main boss on the rear surface of each compensating disc while the other end of the main cylindrical spring is pressed against the inner side surface of the front external end cover; one end of a secondary cylindrical spring is fixed on a secondary boss on the rear surface of each compensating disc while the other end of the secondary cylindrical spring is pressed against the inner side surface of the front external end cover; composite material friction discs are arranged between the main alloy gear and the rear external end cover as well as between the secondary alloy gear and the rear external end cover; both the composite material compensating discs and the composite material friction discs are made of composite materials formed by Fe/Al intermetallic compounds and Al2O3 ceramics; and the main alloy gear 51 and the secondary alloy gear 52 are both made of Nb (niobium) microalloyed high-strength powder metallurgic materials.
Description
Technical field
The invention belongs to mechanical engineering field, International Classification of Patents is the F04D non-varactor pump, relates to a kind of transformation of energy rotary volume pump that mechanical energy is converted to the fluid pressure energy, refers to especially a kind of special gear pump.
Background technique
Rotary volume pump has advantages of that efficient is high, but its efficient obviously reduces after all having long-time running wearing and tearing, causes the main cause of defects to be that the movable isolation of end face between hyperbaric chamber and the low-pressure cavity fails to play the effect of effective sealing.The all conditions that is difficult in the engineering find a kind of material can satisfy specific operation has good cost performance simultaneously, and therefore people often adopt the way of various cover coats to solve this problem in the past; The binding ability that namely takes full advantage of two or more materials realizes, or realizes replacing the high price material to reduce cost with the lower body material of price by certain surface Hardening Treatment.The too hard easily fracture of material, cross and softly then can't process high-precision surface, the undersized easy heat expansion of end face fit tolerance is stuck firmly, the end face fit tolerance is oversize then can not effective sealing, and sealing effect is poorer after the long-time running wearing and tearing, the production line of having to stop is changed pumping unit, causes very large direct or indirect loss.
Summary of the invention
The purpose of this invention is to provide a kind of special gear pump, adopted the Fe/Al intermetallic compounds of pre-synthesis and Al203 to form composite material as the end-face friction material.When effectively controlling radial clearance, also possesses end wear compensation isolation technology, to realize being in all the time efficient external series gap state of a control between hyperbaric chamber and the low-pressure cavity, remedy the deficiencies in the prior art, fill up rotary volume pump at the technological gap of effectively controlling the control of radial clearance and end wear compensate for clearance.
To achieve these goals, the invention provides following technological scheme: a kind of special gear pump, outside thread suction port and outside thread exhaust port are positioned at the pump housing two outsides; The both ends of the surface of the described pump housing are mutually vertical with two semicircle orifices, are stamped respectively front outer end cap on the both ends of the surface and rear outer end cap has the end cap screw fastening; The protecgulum active axis hole of described front outer end cap and the bonnet of rear outer end cap initiatively axis hole are on the same axis; The driven axis hole of bonnet of the driven axis hole of the protecgulum of described front outer end cap and rear outer end cap is on the same axis; Master alloying gear and driving shaft secure fit are between described front outer end cap and described rear outer end cap; From alloy gear and driven shaft secure fit between described front outer end cap and described rear outer end cap; Described master alloying gear and described intermeshing from the alloy gear is as improvement: described master alloying gear and describedly between alloy gear and described front outer end cap the composite material compensating disc is arranged; Master's boss place, the compensating disc back side is fixed with an end of cylinder main spring, and the other end of cylinder main spring is pressed against the inboard face of front outer end cap; The compensating disc back side is fixed with cylinder from an end of spring from boss, and cylinder is pressed against the inboard face of front outer end cap from the other end of spring; Described composite material compensating disc has compensating disc active axis hole and protecgulum active axis hole and bonnet active axis hole to be on the same axis; Described composite material compensating disc has the driven axis hole of compensating disc and the driven axis hole of protecgulum and the driven axis hole of bonnet to be on the same axis; The two semicircle external frames of the compensating disc of described composite material compensating disc are slidingly matched with two semicircle orifices; Between described compensating disc active axis hole and the driven axis hole of described compensating disc 80 to 90 millimeters spacing is arranged; Described master alloying gear and describedly between alloy gear and described rear outer end cap, the composite material friction disk is arranged; Described composite material friction disk has friction disk active axis hole and protecgulum active axis hole and bonnet active axis hole to be on the same axis; Described composite material friction disk has the driven axis hole of friction disk and the driven axis hole of protecgulum and the driven axis hole of bonnet to be on the same axis; The two semicircle external frames of the friction disk of described composite material friction disk are slidingly matched with two semicircle orifices; Between described friction disk active axis hole and the driven axis hole of described friction disk 80 to 90 millimeters spacing is arranged; And described composite material compensating disc and described composite material friction disk are the Fe/Al intermetallic compounds and the Al203 pottery forms composite material, each constituent element all adopts weight percentage (wt%) to be: Al2O3 91～93%, Fe/Al intermetallic compounds 7～9%; Described Fe/Al intermetallic compounds self weight percentages of components (wt%) is: Al(aluminium): 15.5～15.6, Ce(cerium): 0～0.5, Mo (molybdenum): 0～1.5, Cr(chromium): 0～3.0, Ni (nickel): 0～2.0, W(tungsten): 0～2.0, Co (cobalt) 0～1.0, TiC (titanium carbide): 0～1.5, WC (Tungsten carbite): 0～1.5, all the other are Fe(iron); Described master alloying gear 51 and describedly be the Nb(niobium from alloy gear 52) microalloying high strength power metallurgy material, mainly the raw material composition by following quality proportioning forms: NbCl4 0.16%～0.18%, plumbago 0.6～0.7%, zine stearate 1.5～1.7%, all the other are iron powder.
As further improvement: described driving shaft and protecgulum initiatively axis hole and bonnet initiatively between the axis hole for being slidingly matched.
As further improvement: between the driven axis hole of described driven shaft and protecgulum and the driven axis hole of bonnet for being slidingly matched.
As further improvement: described compensating disc is axis hole and driving shaft Spielpassung initiatively; The driven axis hole of described compensating disc and driven shaft Spielpassung.
As further improvement: described friction disk is axis hole and driving shaft Spielpassung initiatively; The driven axis hole of described friction disk and driven shaft Spielpassung.
The invention has the beneficial effects as follows: adopted the Fe/Al intermetallic compounds of pre-synthesis and Al203 to form composite material.The Fe/Al intermetallic compounds also can obtain in conjunction with the heat treatment process under the atmosphere protection by mechanical alloying by high-energy ball milling machinery alloyage pre-synthesis, and all conditions that can satisfy specific operation also has good cost performance simultaneously.The main performance of the made composite material compensating disc of the present invention and composite material friction disk can reach: resistance to flexure is between 700～900MPa, and surface hardness is between HRA 90～92.After fine finishing, the inner side plane of the horizontal frontal plane of composite material compensating disc and composite material friction disk between 0.0002 to 0.0004 millimeter, realizes super mirror surface through precision grinding rear surface roughness, guarantees that operation steady in a long-term is without wear-out failure.
The common axial rebounding force that produces of inboard face that is pressed against respectively front outer end cap from the other end of spring by means of the other end and the cylinder of cylinder main spring, so that the horizontal frontal plane of end-face compensate dish is close to the master alloying gear and from a side plane of alloy gear, force the master alloying gear and be close to the inner side plane of composite material friction disk from the opposite side Transverse plane of alloy gear, consist of axial end wear compensation gap control technology, guarantee that gear pump is in high-efficiency operation all the time.The present invention is novel, and structure is unique, can be mass manufacturing, and the market application potential is huge.
Description of drawings
Fig. 1 is the whole sectional drawing by two main axiss of the present invention.
Fig. 2 is the back side stereogram of the composite material compensating disc 40 among Fig. 1.
Fig. 3 is the stereogram of the composite material friction disk 50 among Fig. 1.
Fig. 4 is the P-P sectional view among Fig. 1.
Fig. 5 is the sectional view in Q-Q cross section among Fig. 1.
Fig. 6 is R-R echelon sectional view among Fig. 5.
Embodiment
In conjunction with the accompanying drawings and embodiments, further structure of the present invention and working principle are elaborated:
In Fig. 1, Fig. 4, a kind of special gear pump, outside thread suction port 86 and outside thread exhaust port 84 are positioned at 80 liang of outsides of the pump housing; The both ends of the surface of the described pump housing 80 are mutually vertical with pair semicircle orifice 85, and being stamped respectively front outer end cap 60 and rear outer end cap 90 on the both ends of the surface has end cap screw 70 fastening; The protecgulum active axis hole 61 of described front outer end cap 60 is on the same axis with the bonnet active axis hole 91 of rear outer end cap 90; The driven axis hole 62 of the protecgulum of described front outer end cap 60 is on the same axis with the driven axis hole 92 of bonnet of rear outer end cap 90; Master alloying gear 51 and driving shaft 11 secure fit are between described front outer end cap 60 and described rear outer end cap 90; From alloy gear 52 and driven shaft 12 secure fit between described front outer end cap 60 and described rear outer end cap 90; Described master alloying gear 51 is with described intermeshing from alloy gear 52, as improvement: described master alloying gear 51 and describedly between alloy gear 52 and described front outer end cap 60 composite material compensating disc 40 is arranged; Master's boss 431 places, the compensating disc back side are fixed with an end of cylinder main spring 31, and the other end of cylinder main spring 31 is pressed against the inboard face of front outer end cap 60; The compensating disc back side is fixed with cylinder from an end of spring 32 from boss 432, and cylinder is pressed against the inboard face of front outer end cap 60 from the other end of spring 32; Described composite material compensating disc 40 has compensating disc active axis hole 411 and protecgulum active axis hole 61 and bonnet active axis hole 91 to be on the same axis; Described composite material compensating disc 40 has the driven axis hole 412 of compensating disc to be on the same axis with the driven axis hole 62 of protecgulum and the driven axis hole 92 of bonnet; The two semicircle external frames 48 of the compensating disc of described composite material compensating disc 40 are slidingly matched with two semicircle orifices 85; Between described compensating disc active axis hole 411 and the driven axis hole 412 of described compensating disc 80 to 90 millimeters spacing is arranged; Described master alloying gear 51 and describedly between alloy gear 52 and described rear outer end cap 90, composite material friction disk 50 is arranged; Described composite material friction disk 50 has friction disk active axis hole 511 and protecgulum active axis hole 61 and bonnet active axis hole 91 to be on the same axis; Described composite material friction disk 50 has the driven axis hole 512 of friction disk to be on the same axis with the driven axis hole 62 of protecgulum and the driven axis hole 92 of bonnet; The two semicircle external frames 58 of the friction disk of described composite material friction disk 50 are slidingly matched with two semicircle orifices 85; Between described friction disk active axis hole 511 and the driven axis hole 512 of described friction disk 80 to 90 millimeters spacing is arranged; And described composite material compensating disc 40 and described composite material friction disk 50 are the Fe/Al intermetallic compounds and the Al203 pottery forms composite material, each constituent element all adopts weight percentage (wt%) to be: Al2O3 91～93%, Fe/Al intermetallic compounds 7～9%; Described Fe/Al intermetallic compounds self weight percentages of components (wt%) is: Al (aluminium): 15.5～15.6, Ce (cerium): 0～0.5, Mo (molybdenum): 0～1.5, Cr (chromium): 0～3.0, Ni (nickel): 0～2.0, W (tungsten): 0～2.0, Co (cobalt): 0～1.0, TiC (titanium carbide): 0～1.5, WC (Tungsten carbite): 0～1.5, and all the other are Fe iron; Described master alloying gear 51 and describedly be Nb niobium microalloyed high strength powdered metallurgical material from alloy gear 52, mainly the raw material composition by following quality proportioning forms: NbCl4 0.16%～0.18%, plumbago 0.6～0.7%, zine stearate 1.5～1.7%, all the other are iron powder.
As further improvement: described driving shaft 11 and protecgulum initiatively axis hole 61 and bonnet initiatively between the axis hole 91 for being slidingly matched.
As further improvement: between the driven axis hole 62 of described driven shaft 12 and protecgulum and the driven axis hole 92 of bonnet for being slidingly matched.
As further improvement: described compensating disc is axis hole 411 and driving shaft 11 Spielpassung initiatively; The driven axis hole 412 of described compensating disc and driven shaft 12 Spielpassung.
As further improvement: described friction disk is axis hole 511 and driving shaft 11 Spielpassung initiatively; The driven axis hole 512 of described friction disk and driven shaft 12 Spielpassung.
In Fig. 2, Fig. 3, outstanding feature of the present invention is to have adopted the Fe/Al intermetallic compounds of pre-synthesis and Al203 to form composite material as rubbing surface.The Fe/Al intermetallic compounds is by high-energy ball milling machinery alloyage pre-synthesis.
Composite material of the present invention can adopt cold pressing isostatic compaction and non-pressure sintering technology.Because the present invention directly adopts pre-synthesis Fe/Al intermetallic compounds and Al203 Ceramic Composite, thereby can form the composite material of two large series, that is: Alz0, basic Fe/Al intermetallic compound composite material and Fe/Al intermetallic compound base Al203 ceramic composite.The former utilizes the Fe/Al intermetallic compounds to improve the toughness of Al203 stupalith, and the latter Al203 stupalith improves hardness, the high temperature resistant and oxidation resistance of Fe/Al intermetallic compounds.
The below provides a most preferred embodiment of the present invention:
The proportioning of Fe-Al base-material (wt%): the Al=15.6 that is weight percentage, Fe=83.4, Co=1.The proportioning of composite material is weight percentage (wt%): Fe-Al base-material 8, aluminum oxide fine powder 92; At first in the accurate weighing of the ratio of Fe-Al base-material, use high speed ball mill ball milling 20 hours, obtain Fe-Al intermetallic compound base material; Ratio batching in composite material added the anhydrous alcohol ball milling 2 hours, and slurry is dry, powder process in vacuum drying oven; Powder is packed in the black lead mould, and sintering in the gas-protecting sintering stove, shielding gas are H2,1360 ℃ of firing temperatures, pressure 30MPa, heat-insulation pressure keeping 15 minutes.Make alumina base Fe-Al Intermetallics Ceramics Composites.After fine finishing, the inner side plane of the horizontal frontal plane of composite material compensating disc and composite material friction disk between 0.0002 to 0.0004 millimeter, realizes super mirror surface through precision grinding rear surface roughness, guarantees that operation steady in a long-term is without wear-out failure.
Installation steps are as follows:
In Fig. 1, it is 17 numbers of teeth that embodiment selects master alloying gear 51, also is 17 numbers of teeth from alloy gear 52.End cap screw 70 numbers of each side of the pump housing 80 are 6.There are 4 compensating disc back side master's boss 431 and 4 compensating disc back sides in composite material compensating disc 40 back sides from boss 432.
Side end face at the pump housing 80 places gasket seal, with 6 end cap screws 70 rear outer end cap 90 is fixed on the side end face of the pump housing 80.
In the groove of bonnet active axis hole 91, put into driving shaft seal ring 21; In the groove of the driven axis hole 92 of bonnet, put into driven shaft seal ring 22.
Composite material friction disk 50 is put into the pump housing 80, allow the outer side plane of composite material friction disk 50 paste rear outer end cap 90 inner side plane.
With the master alloying gear 51 static appropriate locations that are fixed on driving shaft 11; Will be from the alloy gear 52 static appropriate locations that are fixed on driven shaft 12.Shaft rear end with driving shaft 11 passes through in the overcompensation dish active axis hole 411 insertion bonnets active axis holes 91 again; The shaft rear end of driven shaft 12 passes through the driven axis hole 412 of overcompensation dish and inserts in the driven axis hole 92 of bonnet, master alloying gear 51 is with intermeshing from alloy gear 52, so that master alloying gear 51 and the inner side plane of pasting composite material friction disk 50 from a side end face of alloy gear 52.
With the horizontal frontal plane of composite material compensating disc 40 towards master alloying gear 51 with from alloy gear 52, allow compensating disc active axis hole 411 be inserted in the axle front end of driving shaft 11, allow the driven axis hole 412 of compensating disc be inserted in the axle front end of driven shaft 12, so that master alloying gear 51 and pasting the horizontal frontal plane of composite material compensating disc 40 from the opposite side end face of alloy gear 52, the two semicircle external frames 48 of compensating disc are slidingly matched with two semicircle orifices 85.
One end of 4 cylinder main springs 31 is separately fixed at master's boss 431 places, 4 the compensating disc back side; Again in addition 4 cylinder is fixed on 4 compensating disc back sides from boss 432 from an end of spring 32.
In the groove of protecgulum active axis hole 61 and in the groove of the driven axis hole 62 of protecgulum, put into respectively driving shaft seal ring 21 and driven shaft seal ring 22.
Opposite side end face at the pump housing 80 places gasket seal, front outer end cap 60 is fixed on the opposite side end face of the pump housing 80 with 6 end cap screws 70, so that the axle front end of driving shaft 11 passed through initiatively axis hole 61 of protecgulum, driving shaft keyway 17 is in outside the front outer end cap 60; The axle front end of driven shaft 12 passed through the driven axis hole 62 of protecgulum.
As follows during the work operation:
In Fig. 5 and Fig. 6, external force is by 17 inputs of driving shaft keyway, by driving shaft 11 related master alloying gear 51 rotations, by master and slave alloy gear engagement, order about from 52 opposite spins of alloy gear master alloying gear 51 cylindricals and all be slidingly matched with two semicircle orifices from alloy gear 52 cylindricals.
Master's boss 431 places, the compensating disc back side are fixed with an end of cylinder main spring 31, and the other end of cylinder main spring 31 is pressed against the inboard face of front outer end cap 60; The compensating disc back side is fixed with cylinder from an end of spring 32 from boss 432, and cylinder is pressed against the inboard face of front outer end cap 60 from the other end of spring 32.The common axial rebounding force that produces of inboard face that is pressed against respectively front outer end cap 60 from the other end of spring 32 by means of the other end and the cylinder of cylinder main spring 31, so that the horizontal frontal plane of composite material compensating disc 40 is close to master alloying gear 51 and from a side plane of alloy gear 52, force master alloying gear 51 and be close to the inner side plane of composite material friction disk from the opposite side Transverse plane of alloy gear 52, consist of axial end wear compensation gap control technology, guarantee that gear pump is in high-efficiency operation all the time.
Claims (5)
1. special gear pump, outside thread suction port (86) and outside thread exhaust port (84) are positioned at the pump housing (80) two outsides; The both ends of the surface of the described pump housing (80) are mutually vertical with two semicircle orifices (85), are stamped respectively front outer end cap (60) and rear outer end cap (90) on the both ends of the surface, and have end cap screw (70) fastening; The protecgulum active axis hole (61) of described front outer end cap (60) is on the same axis with the bonnet active axis hole (91) of rear outer end cap (90); The driven axis hole of protecgulum (62) of described front outer end cap (60) is on the same axis with the driven axis hole of bonnet (92) of rear outer end cap (90); Master alloying gear (51) and driving shaft (11) secure fit are positioned between described front outer end cap (60) and the described rear outer end cap (90); Be positioned between described front outer end cap (60) and the described rear outer end cap (90) from alloy gear (52) and driven shaft (12) secure fit; Described master alloying gear (51) is characterized in that with described intermeshing from alloy gear (52)
:Described master alloying gear (51) and describedly between alloy gear (52) and described front outer end cap (60), composite material compensating disc (40) is arranged; Compensating disc back side master's boss (431) locates to be fixed with an end of cylinder main spring (31), and the other end of cylinder main spring (31) is pressed against the inboard face of front outer end cap (60); The compensating disc back side is fixed with cylinder from an end of spring (32) from boss (432), and cylinder is pressed against the inboard face of front outer end cap (60) from the other end of spring (32); Described composite material compensating disc (40) has compensating disc active axis hole (411) and protecgulum active axis hole (61) and bonnet active axis hole (91) to be on the same axis; Described composite material compensating disc (40) has the driven axis hole of compensating disc (412) and the driven axis hole of protecgulum (62) and the driven axis hole of bonnet (92) to be on the same axis; The two semicircle external frames (48) of the compensating disc of described composite material compensating disc (40) are slidingly matched with two semicircle orifices (85); Between described compensating disc active axis hole (411) and the driven axis hole of described compensating disc (412) 80 to 90 millimeters spacing is arranged; Described master alloying gear (51) and describedly between alloy gear (52) and described rear outer end cap (90), composite material friction disk (50) is arranged; Described composite material friction disk (50) has friction disk active axis hole (511) and protecgulum active axis hole (61) and bonnet active axis hole (91) to be on the same axis; Described composite material friction disk (50) has the driven axis hole of friction disk (512) and the driven axis hole of protecgulum (62) and the driven axis hole of bonnet (92) to be on the same axis; The two semicircle external frames (58) of the friction disk of described composite material friction disk (50) are slidingly matched with two semicircle orifices (85); Between described friction disk active axis hole (511) and the driven axis hole of described friction disk (512) 80 to 90 millimeters spacing is arranged; And described composite material compensating disc (40) and described composite material friction disk (50) are the Fe/Al intermetallic compounds and the Al203 pottery forms composite material, each constituent element all adopts weight percentage (wt%) to be: Al2O3 91～93%, Fe/Al intermetallic compounds 7～9%; Described Fe/Al intermetallic compounds self weight percentages of components (wt%) is: Al(aluminium): 15.5～15.6, Ce(cerium): 0～0.5, Mo (molybdenum): 0～1.5, Cr(chromium): 0～3.0, Ni (nickel): 0～2.0, W(tungsten): 0～2.0, Co (cobalt): 0～1.0, TiC (titanium carbide): 0～1.5, WC (Tungsten carbite): 0～1.5, all the other are Fe(iron); Described master alloying gear (51) and describedly be the Nb(niobium from alloy gear (52)) microalloying high strength power metallurgy material, mainly the raw material composition by following quality proportioning forms: NbCl4 0.16%～0.18%, plumbago 0.6～0.7%, zine stearate 1.5～1.7%, all the other are iron powder.
2. a kind of special gear pump according to claim 1 is characterized in that: described driving shaft (11) and protecgulum initiatively axis hole (61) and bonnet initiatively between the axis hole (91) for being slidingly matched.
3. a kind of special gear pump according to claim 1 is characterized in that: between described driven shaft (12) and the driven axis hole of protecgulum (62) and the driven axis hole of bonnet (92) for being slidingly matched.
4. a kind of special gear pump according to claim 1 is characterized in that: described compensating disc active axis hole (411) and driving shaft (11) Spielpassung; The driven axis hole of described compensating disc (412) and driven shaft (12) Spielpassung.
5. a kind of special gear pump according to claim 1 is characterized in that: described friction disk active axis hole (511) and driving shaft (11) Spielpassung; The driven axis hole of described friction disk (512) and driven shaft (12) Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518895.9A CN102927003B (en) | 2012-12-06 | 2012-12-06 | Special gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518895.9A CN102927003B (en) | 2012-12-06 | 2012-12-06 | Special gear pump |
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| Publication Number | Publication Date |
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| CN102927003A true CN102927003A (en) | 2013-02-13 |
| CN102927003B CN102927003B (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210518895.9A Active CN102927003B (en) | 2012-12-06 | 2012-12-06 | Special gear pump |
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Cited By (6)
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| CN103114992A (en) * | 2013-03-20 | 2013-05-22 | 张意立 | High-efficiency gear pump |
| CN103133342A (en) * | 2013-03-20 | 2013-06-05 | 张意立 | Gear pump with novel structure |
| CN103174643A (en) * | 2013-03-28 | 2013-06-26 | 宁波大红鹰学院 | Improved gear pump |
| CN103195705A (en) * | 2013-03-28 | 2013-07-10 | 宁波大红鹰学院 | Gear pump made of new structural material |
| CN103195706A (en) * | 2013-03-28 | 2013-07-10 | 宁波大红鹰学院 | Gear pump with new structure |
| CN103967781A (en) * | 2013-04-22 | 2014-08-06 | 宁波大红鹰学院 | Novel gear pump |
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| CN103114992A (en) * | 2013-03-20 | 2013-05-22 | 张意立 | High-efficiency gear pump |
| CN103133342A (en) * | 2013-03-20 | 2013-06-05 | 张意立 | Gear pump with novel structure |
| CN103174643A (en) * | 2013-03-28 | 2013-06-26 | 宁波大红鹰学院 | Improved gear pump |
| CN103195705A (en) * | 2013-03-28 | 2013-07-10 | 宁波大红鹰学院 | Gear pump made of new structural material |
| CN103195706A (en) * | 2013-03-28 | 2013-07-10 | 宁波大红鹰学院 | Gear pump with new structure |
| CN103967781A (en) * | 2013-04-22 | 2014-08-06 | 宁波大红鹰学院 | Novel gear pump |
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| CN102927003B (en) | 2014-12-24 |
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