CN203009285U - Special gear pump - Google Patents
Special gear pump Download PDFInfo
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- CN203009285U CN203009285U CN 201220667161 CN201220667161U CN203009285U CN 203009285 U CN203009285 U CN 203009285U CN 201220667161 CN201220667161 CN 201220667161 CN 201220667161 U CN201220667161 U CN 201220667161U CN 203009285 U CN203009285 U CN 203009285U
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- composite material
- gear
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Abstract
The utility model discloses a special gear pump which is characterized in that an outer thread suction inlet and an outer thread discharge outlet are located on the two outer sides of a pump body, two end faces of the pump body are vertical to double semicircular holes, the two end faces are respectively covered with a front outer end cover and a rear outer end cover which are all fastened by end cover screws, a master alloyed gear is mutually meshed with a slave alloyed gear, and a composite material compensating disc is arranged between the master and slave alloyed gears and the front outer end cover; a master boss arranged on the back of the compensating disc is fixedly provided with one end of a cylinder master spring, the other end of the cylinder master spring leans against the inner side face of the front outer end cover; a slave boss arranged on the back of the compensating disc is fixedly provided with one end of a cylinder slave spring, the other end of the cylinder slave spring leans against the inner side face of the front outer end cover; a composite material friction disc is arranged between the master and slave alloyed gears and the rear outer end cover; the composite material compensating disc and the composite material friction disc are made of composite materials formed by Fe/Al intermetallic compound and A1203 ceramic, and the master alloyed gear 51 and the slave alloyed gear 52 are made of an Nb (niobium) micro-alloying high-strength powder metallurgy material.
Description
Technical field
The utility model belongs to mechanical engineering field, and 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 after all having long-time running wearing and tearing, its efficient obviously reduces, and causes the main cause of defects to be that the end face activity isolation between hyperbaric chamber and low-pressure cavity could not play the effect of effective sealing.The all conditions that is difficult in 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 costs with the lower body material of price by certain surface Hardening Treatment.The too hard easily fracture of material, cross and softly 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 can not effective sealing, and after the long-time running wearing and tearing, sealing effect is poorer, 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 utility model is to provide a kind of special gear pump, has 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 low-pressure cavity, make up the deficiencies in the prior art, fill up rotary volume pump and effectively controlling the technological gap that radial clearance and end wear compensate for clearance are controlled.
To achieve these goals, the utility model 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 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 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 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 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 same axis; The two semicircle external frames of the compensating disc of described composite material compensating disc are slidably matched with two semicircle orifices; Between described compensating disc active axis hole and the driven axis hole of described compensating disc, the spacing of 80 to 90 millimeters 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 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 same axis; The two semicircle external frames of the friction disk of described composite material friction disk are slidably matched with two semicircle orifices; Between described friction disk active axis hole and the driven axis hole of described friction disk, the spacing of 80 to 90 millimeters 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 axis hole for being slidably matched.
As further improvement: between the driven axis hole of described driven shaft and protecgulum and the driven axis hole of bonnet for being slidably 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 beneficial effects of the utility model are: 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 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 utility model 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 other end and cylinder by means of the cylinder main spring are pressed against respectively the common axial rebounding force that produces of inboard face of front outer end cap from the other end of spring, make the horizontal frontal plane of end-face compensate dish be 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 utility model 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 utility model.
Fig. 2 is the back side stereogram of the composite material compensating disc 40 in Fig. 1.
Fig. 3 is the stereogram of the composite material friction disk 50 in Fig. 1.
Fig. 4 is the P-P sectional view in Fig. 1.
Fig. 5 is the sectional view in Q-Q cross section in Fig. 1.
Fig. 6 is R-R echelon sectional view in Fig. 5.
Embodiment
In conjunction with the accompanying drawings and embodiments, further structure of the present utility model 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 the pump housing 80 liang of outsides; The both ends of the surface of the described pump housing 80 are mutually vertical with two semicircle orifices 85, and being stamped respectively front outer end cap 60 and rear outer end cap 90 on 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 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 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 same axis; Described composite material compensating disc 40 has the driven axis hole 412 of compensating disc to be on 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 slidably matched with two semicircle orifices 85; Between described compensating disc active axis hole 411 and the driven axis hole 412 of described compensating disc, the spacing of 80 to 90 millimeters 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 same axis; Described composite material friction disk 50 has the driven axis hole 512 of friction disk to be on 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 slidably matched with two semicircle orifices 85; Between described friction disk active axis hole 511 and the driven axis hole 512 of described friction disk, the spacing of 80 to 90 millimeters 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 axis hole 91 for being slidably 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 slidably 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 utility model 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 utility model can adopt cold pressing isostatic compaction and non-pressure sintering technology.Because the utility model 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 utility model:
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 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, is also 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.
Place gasket seal on a side end face of the pump housing 80, with 6 end cap screws 70, rear outer end cap 90 is fixed on a side end face of the pump housing 80.
Put into driving shaft seal ring 21 in the groove of bonnet active axis hole 91; Put into driven shaft seal ring 22 in the groove of the driven axis hole 92 of bonnet.
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 static appropriate location that is fixed on driving shaft 11 of master alloying gear 51; Will be from the static appropriate location that is fixed on driven shaft 12 of alloy gear 52.Shaft rear end with driving shaft 11 passes through in 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 and intermeshing from alloy gear 52, the inner side plane that makes master alloying gear 51 and 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, make 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 slidably 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; Another 4 are fixed on 4 compensating disc back sides from boss 432 with cylinder from an end of spring 32 again.
Put into respectively driving shaft seal ring 21 and driven shaft seal ring 22 in the groove of protecgulum active axis hole 61 and in the groove of the driven axis hole 62 of protecgulum.
Place gasket seal on the opposite side end face of the pump housing 80, front outer end cap 60 is fixed on the opposite side end face of the pump housing 80 with 6 end cap screws 70, make the axle front end of driving shaft 11 pass through initiatively axis hole 61 of protecgulum, driving shaft keyway 17 is in outside 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 related master alloying gear 51 rotations of driving shaft 11, by master and slave alloy gear engagement, order about from 52 opposite spins of alloy gear master alloying gear 51 cylindricals and all being slidably 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 other end and cylinder by means of cylinder main spring 31 are pressed against respectively the common axial rebounding force that produces of inboard face of front outer end cap 60 from the other end of spring 32, make the horizontal frontal plane of composite material compensating disc 40 be 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 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 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 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 described rear outer end cap (90); Be positioned between described front outer end cap (60) and 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 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 same axis; The two semicircle external frames (48) of the compensating disc of described composite material compensating disc (40) are slidably matched with two semicircle orifices (85); Between described compensating disc active axis hole (411) and the driven axis hole of described compensating disc (412), the spacing of 80 to 90 millimeters 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 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 same axis; The two semicircle external frames (58) of the friction disk of described composite material friction disk (50) are slidably matched with two semicircle orifices (85); Between described friction disk active axis hole (511) and the driven axis hole of described friction disk (512), the spacing of 80 to 90 millimeters 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; Described master alloying gear (51) and describedly be the Nb(niobium from alloy gear (52)) microalloying high strength power metallurgy material.
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 axis hole (91) for being slidably 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 slidably 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 |
|---|---|---|---|
| CN 201220667161 CN203009285U (en) | 2012-12-07 | 2012-12-07 | Special gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220667161 CN203009285U (en) | 2012-12-07 | 2012-12-07 | Special gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009285U true CN203009285U (en) | 2013-06-19 |
Family
ID=48600883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220667161 Expired - Fee Related CN203009285U (en) | 2012-12-07 | 2012-12-07 | Special gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009285U (en) |
-
2012
- 2012-12-07 CN CN 201220667161 patent/CN203009285U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20141207 |
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| EXPY | Termination of patent right or utility model |