CN1342842A - Gear pump with bidirectional compensator for axial sealing - Google Patents
Gear pump with bidirectional compensator for axial sealing Download PDFInfo
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- CN1342842A CN1342842A CN 00111365 CN00111365A CN1342842A CN 1342842 A CN1342842 A CN 1342842A CN 00111365 CN00111365 CN 00111365 CN 00111365 A CN00111365 A CN 00111365A CN 1342842 A CN1342842 A CN 1342842A
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Abstract
A gear pump with bidirectionally axial sealing compensator is disclosed. Its side plate has a sectorial concave part on the top and botton edges of its frout surface near the gear. Said sectorial concave part has a central oil orifice. On the back of said side plate, there are sealing rubber ring and baffle ring. At the position of said oil orifice, there is a sectional boss around which there is a slot. Said sealing rubber ring is installed between said two slot rings and an X shaped slot is located between siad slot rings.
Description
What the present invention relates to is gear pump in a kind of hydraulic pressure installation, especially a kind of gear pump with bidirectional compensator for axial sealing.
Hydraulic gear pump is very high to the requirement of its axial seal, otherwise the efficient of gear pump is reduced, even can not play the effect of pump.In the prior art, gear pump axial seal preferably is to adopt to install side plate additional in the gear both sides, make the axial seal raising, but the existing in prior technology deficiency is because side plate has only the indemnifying measure of unidirectional axial seal, cause the gear pump can only one-way only operation, can not positive and negative two realize positive and negative two-way working, but more can not make the oil hydraulic motor of gear pump reverse running becoming two-way working to rotating.
Purpose of the present invention, be exactly at the existing in prior technology deficiency, and provide a kind of gear pump technological scheme with bidirectional compensator for axial sealing, this scheme can make gear pump increase the compensate function of bi-directional axial sealing, make gear pump in the course of the work, axial seal can obtain to guarantee, can make gear pump by can only one-way only operation becoming positive and negative two to rotating the positive and negative two-way working of realization, and then can make the reverse running of gear pump become oil hydraulic motor, realize that pump and motor are general.
The present invention can be realized by following two schemes.
The first string: mainly including protecgulum, housing and bonnet link together by bolt, inner chamber at housing has four bearings driving gear and driven gear, the shaft of driving gear stretches out outside the protecgulum, and and protecgulum between seal ring is arranged, both sides at driving gear and driven gear, " a 8 " font side plate with driving gear axis hole and driven gear axis hole is respectively arranged, there are filler opening and oil outlet in the both sides of housing, the characteristics of this programme are described two side plates, in front near gear, on the side plate, respectively there is a fan-shaped concave edge underpart, in the centre of fan-shaped concave edge an oil-through hole is arranged respectively, at the back side of side plate O-ring seal and Sealing shield ring are arranged,, a fan-shaped boss is arranged at the oil-through hole place, periphery at fan-shaped boss has the annular sector groove, up and down having the X-shaped groove to connect between two annular sector grooves, described O-ring seal just is contained within annular sector groove and the X-shaped groove, on be stamped the outer contour Sealing shield ring identical with the O-ring seal outer contour; Fan-shaped boss on the described Sealing shield ring on the corresponding side plate has fan-shaped shallow slot or fan shaped borehole, and the fan-shaped boss on the corresponding side plate has fan shaped borehole on the described O-ring seal, has the X-shaped groove to connect between two fan shaped boreholes up and down.
Second scheme: mainly including protecgulum, housing and bonnet link together by bolt, inner chamber at housing has four bearings driving gear and driven gear, the shaft of driving gear stretches out outside the protecgulum, and and protecgulum between seal ring is arranged, both sides at driving gear and driven gear, " a 8 " font side plate with driving gear axis hole and driven gear axis hole is respectively arranged, there are filler opening and oil outlet in the both sides of housing, the characteristics of this programme are described two side plates, in front near gear, on the side plate, respectively there is a fan-shaped concave edge underpart, in the centre of fan-shaped concave edge an oil-through hole is arranged respectively, at the back side of side plate O-ring seal and Sealing shield ring are arranged, at the oil-through hole place, one fan-shaped boss is arranged, periphery at fan-shaped boss has the annular sector groove, there is being ") (" connected in star to connect between two annular sector grooves up and down, described O-ring seal just is contained within annular sector groove and the ") (" connected in star, on be stamped the outer contour Sealing shield ring identical with the O-ring seal outer contour; Fan-shaped boss on the described Sealing shield ring on the corresponding side plate has fan-shaped shallow slot, and the fan-shaped boss on the corresponding side plate has fan shaped borehole on the described O-ring seal, has ") (" shape groove to connect between two fan shaped boreholes up and down.
According to as can be known to the narration of above-mentioned two schemes, because there are fan-shaped concave edge and oil-through hole in the front at this scheme latus inframedium in two end part up and down, annular sector groove and X-shaped groove or ") (" connected in star are arranged at the back side of side plate, O-ring seal is housed in groove, be stamped Sealing shield ring above the O-ring seal, fan shaped borehole that does not stop oil-through hole and the X-shaped groove that is connected fan shaped borehole or ") (" shape groove are arranged on O-ring seal, and there is fan-shaped shallow slot at corresponding oil-through hole place on Sealing shield ring.This structure, make gear pump when work, high pressure oil can pass through fan-shaped concave edge and oil-through hole approaching side backboard face, high pressure oil is under the stopping of Sealing shield ring, be full of fan shaped borehole and X-shaped groove or ") (" shape groove of O-ring seal, in O-ring seal fan shaped borehole and groove, form the high pressure sealing district, force side plate close to gear, thereby remedied the unidirectional axial seal of gear pump, made gear pump possess the bi-directional axial sealing.Because the bi-directional axial of gear pump has been sealed with assurance, the pressure of gear pump output is improved, and, can make the gear pump counterrotating, both make the filler opening of gear pump become oil outlet, oil outlet has originally become filler opening, make ratchet pump in the past become double-direction gearpump, enlarged the application area of gear pump, also the reverse running of gear pump can have been become the oil hydraulic motor of energy two-way working simultaneously, realized that pump and motor are general.This shows that the present invention compared with prior art has outstanding substantive distinguishing features and obvious improvement, its implementation result also is conspicuous.
For clearly demonstrating the technical characterstic of two schemes,, and, respectively two schemes are set forth in conjunction with its accompanying drawing below by two specific embodiments.
Description of drawings:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation;
Fig. 3 is the front schematic view of Fig. 1 latus inframedium;
Fig. 4 is the schematic rear view of Fig. 1 latus inframedium;
Fig. 5 is the cross-sectional schematic of Fig. 1 latus inframedium and O-ring seal, Sealing shield ring;
Fig. 6 is a Sealing shield ring schematic representation in first scheme;
Fig. 7 is an O-ring seal schematic representation in first scheme;
Fig. 8 is the schematic rear view of alternative plan latus inframedium;
Fig. 9 is a Sealing shield ring schematic representation in the alternative plan;
Figure 10 is an O-ring seal schematic representation in the alternative plan.
The first string: by accompanying drawing 1,2,3,4,5,6,7 as can be seen, gear pump with bidirectional compensator for axial sealing, mainly include protecgulum 3, housing 5 and bonnet 9 link together by bolt 13, inner chamber at housing 5 has four bearings 4 supporting driving gear 10 and driven gear 11, the shaft 1 of driving gear 10 stretches out outside the protecgulum 3, and and protecgulum 3 between seal ring 2 is arranged, both sides at driving gear 10 and driven gear 11, " a 8 " font side plate 6 with driving gear axis hole 17 and driven gear axis hole 18 is respectively arranged, there are filler opening 12 and oil outlet 14 in the both sides of housing 5, the characteristics of this programme are described two side plates 6, in front near gear, on the side plate 6, respectively there is a fan-shaped concave edge 15 underpart, in the centre of fan-shaped concave edge 15 oil-through hole 16 is arranged respectively, O-ring seal 7 and Sealing shield ring 8 are arranged at the back side of side plate 6, at oil-through hole 16 places, one fan-shaped boss 20 is arranged, periphery at fan-shaped boss 20 has annular sector groove 19, there is being X-shaped groove 21 to connect between two annular sector grooves 19 up and down, described O-ring seal 7 just is contained within annular sector groove 19 and the X-shaped groove 21, on be stamped the outer contour Sealing shield ring 8 identical with O-ring seal 7 outer contours; Fan-shaped boss 20 on the described Sealing shield ring 8 on the corresponding side plate 6 has fan-shaped shallow slot 22, and the fan-shaped boss 20 on the corresponding side plate 6 has fan shaped borehole 24 on the described O-ring seal 7, has X-shaped groove 25 to connect between two fan shaped boreholes 24 up and down.On the described Sealing shield ring 8, also have X-shaped shallow slot 23 to connect between the two fan-shaped shallow slots 22.Described O-ring seal 7 is the rubber materials that adopt.Described Sealing shield ring 8 is the plastic materials that adopt.
Second scheme: by accompanying drawing 1,2,3,5,8,9,10 as can be seen, gear pump with bidirectional compensator for axial sealing, mainly include protecgulum 3, housing 5 and bonnet 9 link together by bolt 13, inner chamber at housing 5 has four bearings 4 supporting driving gear 10 and driven gear 11, the shaft 1 of driving gear 10 stretches out outside the protecgulum 3, and and protecgulum 3 between seal ring 2 is arranged, both sides at driving gear 10 and driven gear 11, " a 8 " font side plate 6 with driving gear axis hole 17 and driven gear axis hole 18 is respectively arranged, there are filler opening 12 and oil outlet 14 in the both sides of housing 5, the characteristics of this programme are described two side plates 6, in front near gear, on the side plate 6, respectively there is a fan-shaped concave edge 15 underpart, in the centre of fan-shaped concave edge 15 oil-through hole 16 is arranged respectively, O-ring seal 7 and Sealing shield ring 8 are arranged at the back side of side plate 6, at oil-through hole 16 places, one fan-shaped boss 20 is arranged, periphery at fan-shaped boss 20 has annular sector groove 19, there is being ") (" connected in star 26 to connect between two annular sector grooves 19 up and down, described O-ring seal 7 just is contained within annular sector groove 19 and the ") (" connected in star 26, on be stamped the outer contour Sealing shield ring 8 identical with O-ring seal 7 outer contours; Fan-shaped boss 20 on the described Sealing shield ring 8 on the corresponding side plate 6 has fan-shaped shallow slot 22, and the fan-shaped boss 20 on the corresponding side plate 6 has fan shaped borehole 24 on the described O-ring seal 7, has ") (" shape groove 28 to connect between two fan shaped boreholes 24 up and down.On the described Sealing shield ring 8, also have ") (" shape shallow slot 27 to connect between the two fan-shaped shallow slots 22.
Claims (6)
1. gear pump with bidirectional compensator for axial sealing, mainly include protecgulum [3], housing [5] and bonnet [9] link together by bolt [13], inner chamber at housing [5] has four bearings [4] supporting driving gear [10] and driven gear [11], the shaft [1] of driving gear [10] stretches out outside the protecgulum [3], and and protecgulum [3] between seal ring [2] is arranged, both sides at driving gear [10] and driven gear [11], " a 8 " font side plate [6] with driving gear axis hole [17] and driven gear axis hole [18] is respectively arranged, there are filler opening [12] and oil outlet [14] in the both sides of housing [5], it is characterized in that described two side plates [6], in front near gear, on the side plate [6], respectively there is a fan-shaped concave edge [15] underpart, in the centre of fan-shaped concave edge [15] oil-through hole [16] is arranged respectively, O-ring seal [7] and Sealing shield ring [8] are arranged at the back side of side plate [6], locate at oil-through hole [16], one fan-shaped boss [20] is arranged, periphery at fan-shaped boss [20] has annular sector groove [19], there is being X-shaped groove [21] to connect up and down between two annular sector grooves [19], described O-ring seal [7] just is contained within annular sector groove [19] and the X-shaped groove [21], on be stamped the outer contour Sealing shield ring [8] identical with O-ring seal [7] outer contour; The fan-shaped boss [20] that described Sealing shield ring [8] is gone up on the corresponding side plate [6] has fan-shaped shallow slot [22] also can adopt fan shaped borehole, and the fan-shaped boss [20] that described O-ring seal [7] is gone up on the corresponding side plate [6] has fan shaped borehole [24], has X-shaped groove [25] to connect up and down between two fan shaped boreholes [24].
2. the gear pump with bidirectional compensator for axial sealing according to claim 1 is characterized in that on the described Sealing shield ring [8], also has X-shaped shallow slot [23] to connect between the two fan-shaped shallow slots [22].
3. the gear pump with bidirectional compensator for axial sealing according to claim 2 is characterized in that described O-ring seal [7] is the rubber material that adopts.
4. the gear pump with bidirectional compensator for axial sealing according to claim 2 is characterized in that described Sealing shield ring [8] is the plastic material that adopts.
5. gear pump with bidirectional compensator for axial sealing, mainly include protecgulum [3], housing [5] and bonnet [9] link together by bolt [13], inner chamber at housing [5] has four bearings [4] supporting driving gear [10] and driven gear [11], the shaft [1] of driving gear [10] stretches out outside the protecgulum [3], and and protecgulum [3] between seal ring [2] is arranged, both sides at driving gear [10] and driven gear [11], " a 8 " font side plate [6] with driving gear axis hole [17] and driven gear axis hole [18] is respectively arranged, there are filler opening [12] and oil outlet [14] in the both sides of housing [5], it is characterized in that described two side plates [6], in front near gear, on the side plate [6], respectively there is a fan-shaped concave edge [15] underpart, in the centre of fan-shaped concave edge [15] oil-through hole [16] is arranged respectively, O-ring seal [7] and Sealing shield ring [8] are arranged at the back side of side plate [6], locate at oil-through hole [16], one fan-shaped boss [20] is arranged, periphery at fan-shaped boss [20] has annular sector groove [19], there is being ") (" connected in star [26] to connect up and down between two annular sector grooves [19], described O-ring seal [7] just is contained within annular sector groove [19] and the ") (" connected in star [26], on be stamped the outer contour Sealing shield ring [8] identical with O-ring seal [7] outer contour; The fan-shaped boss [20] that described Sealing shield ring [8] is gone up on the corresponding side plate [6] has fan-shaped shallow slot [22], and the fan-shaped boss [20] that described O-ring seal [7] is gone up on the corresponding side plate [6] has fan shaped borehole [24], has ") (" shape groove [28] to connect up and down between two fan shaped boreholes [24].
6. the gear pump with bidirectional compensator for axial sealing according to claim 5 is characterized in that on the described Sealing shield ring [8], also has ") (" shape shallow slot [27] to connect between the two fan-shaped shallow slots [22].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001113658A CN100449147C (en) | 2000-09-11 | 2000-09-11 | Gear pump with bidirectional compensator for axial sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001113658A CN100449147C (en) | 2000-09-11 | 2000-09-11 | Gear pump with bidirectional compensator for axial sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1342842A true CN1342842A (en) | 2002-04-03 |
| CN100449147C CN100449147C (en) | 2009-01-07 |
Family
ID=4581283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001113658A Expired - Fee Related CN100449147C (en) | 2000-09-11 | 2000-09-11 | Gear pump with bidirectional compensator for axial sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100449147C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425544A (en) * | 2011-12-20 | 2012-04-25 | 淮安市胜杰液压机械有限公司 | High pressure gear pump |
| CN102465870A (en) * | 2010-11-08 | 2012-05-23 | 西安航空动力控制科技有限公司 | Planetary gear pump with axial sealing compensation |
| CN103742407A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
| CN104196717A (en) * | 2014-08-20 | 2014-12-10 | 合肥长源液压股份有限公司 | Gear motor side plate with bidirectional support guide type combined sealing structure |
| CN101802386B (en) * | 2007-09-18 | 2015-05-06 | 罗伯特·博世有限公司 | Fuel pump, in particular for a fuel system of a reciprocating-piston internal combustion engine |
| CN105649975A (en) * | 2014-11-14 | 2016-06-08 | 北京航科发动机控制系统科技有限公司 | Integrated bearing |
| CN107061138A (en) * | 2017-06-20 | 2017-08-18 | 合肥长源液压股份有限公司 | High-pressure gear motor |
| CN109973380A (en) * | 2017-12-28 | 2019-07-05 | Ｋｙｂ株式会社 | Fluid presses equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064832U (en) * | 1990-04-13 | 1990-10-31 | 程安强 | Middle axial compensationally sealed gear pump |
| CN2263724Y (en) * | 1996-01-19 | 1997-10-01 | 周震 | Gear pump |
-
2000
- 2000-09-11 CN CNB001113658A patent/CN100449147C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101802386B (en) * | 2007-09-18 | 2015-05-06 | 罗伯特·博世有限公司 | Fuel pump, in particular for a fuel system of a reciprocating-piston internal combustion engine |
| CN102465870A (en) * | 2010-11-08 | 2012-05-23 | 西安航空动力控制科技有限公司 | Planetary gear pump with axial sealing compensation |
| CN102465870B (en) * | 2010-11-08 | 2014-12-17 | 西安航空动力控制科技有限公司 | Planetary gear pump with axial sealing compensation |
| CN102425544A (en) * | 2011-12-20 | 2012-04-25 | 淮安市胜杰液压机械有限公司 | High pressure gear pump |
| CN103742407A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
| CN104196717A (en) * | 2014-08-20 | 2014-12-10 | 合肥长源液压股份有限公司 | Gear motor side plate with bidirectional support guide type combined sealing structure |
| CN105649975A (en) * | 2014-11-14 | 2016-06-08 | 北京航科发动机控制系统科技有限公司 | Integrated bearing |
| CN107061138A (en) * | 2017-06-20 | 2017-08-18 | 合肥长源液压股份有限公司 | High-pressure gear motor |
| CN107061138B (en) * | 2017-06-20 | 2021-01-05 | 合肥长源液压股份有限公司 | High-pressure gear motor |
| CN109973380A (en) * | 2017-12-28 | 2019-07-05 | Ｋｙｂ株式会社 | Fluid presses equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100449147C (en) | 2009-01-07 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Granted publication date: 20090107 Termination date: 20150911 |
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| EXPY | Termination of patent right or utility model |