CN105351186A - High-pressure gear pump with shaft sleeves of new structure - Google Patents
High-pressure gear pump with shaft sleeves of new structure Download PDFInfo
- Publication number
- CN105351186A CN105351186A CN201510828547.5A CN201510828547A CN105351186A CN 105351186 A CN105351186 A CN 105351186A CN 201510828547 A CN201510828547 A CN 201510828547A CN 105351186 A CN105351186 A CN 105351186A
- Authority
- CN
- China
- Prior art keywords
- gear
- floating buss
- pump
- shaft sleeves
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/90—Alloys not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a high-pressure gear pump with shaft sleeves of a new structure. The high-pressure gear pump comprises a pump body, a drive gear, a driven gear, a front cover and a rear cover, wherein the drive gear and the driven gear are installed in the pump body through DU bearings, and the front cover and the rear cover are sealed at the two ends of the pump body. Four floating shaft sleeves are installed on the two end faces of the drive gear and the two end faces of the driven gear respectively. A W-shaped pressing plate is arranged on one end face of each shaft sleeve. A W sealing groove is formed in the end face, close to the corresponding W-shaped pressing plate, of each floating shaft sleeve. The W-shaped pressing plates are pressed on W sealing rings. The W-shaped pressing plates sink in the W sealing grooves of the floating shaft sleeves in a matched manner, and it is ensured that the outer surfaces of the W-shaped pressing plates are flush with the end faces of the floating shaft sleeves. According to the high-pressure gear pump with the ZALSnCu alloy floating shaft sleeves, the friction performance of the high-pressure gear pump is improved; the sealing strip pressing plates are adopted for the sealing structure, sealing strips are protected through the closed space formed by the pressing plates and the shaft sleeves, and the pressure resisting grade of the gear pump is improved; and ring-shaped sealing is adopted for the floating shaft sleeves, leakage of the end faces of the gears is reduced, and volume efficiency is improved.
Description
Technical field
The present invention relates to gear pump technology, specifically a kind of high-pressure gear pump adopting new structure axle sleeve.
Background technique
Current domestic gear pump shaft all adopts to floating seal side plate and to make after the thick phosphor bronze of the inner side of steel plate sintering 0.5 ~ 0.7mm, to ensure there is good frictional behaviour between side plate and gear face, radial seal adopts semi-enclosed Stamping Steel Ribbon to add supporting bar structure, and this kind of structure fabrication gets up not only relatively loaded down with trivial details and voltage withstand class is relatively low.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of high-pressure gear pump adopting new structure axle sleeve.
The present invention is realized by once technological scheme: a kind of high-pressure gear pump adopting new structure axle sleeve, comprises the pump housing, to be arranged in the pump housing by DU bearing and the driving gear be engaged with each other and driven gear and be sealed in protecgulum and the bonnet at pump housing two ends; The both ends of the surface of described driving gear and driven gear are respectively provided with the floating buss of a figure of eight; Described floating buss is provided with a W type pressing plate away from an end face of driving gear and driven gear; Described floating buss has W seal groove near an end face of W type pressing plate, is provided with W seal ring in W seal groove, and outer ring and the pump housing inwall of W seal ring are close to; Floating buss also has and is communicated with the end face of floating buss near driving gear and driven gear to the through hole in the circle of other end W seal groove; Described W type pressing plate is pressed on W seal ring, and the cooperation of W type pressing plate is sunk in the W seal groove of floating buss, ensures W type pressing plate outer surface and floating buss end face.
It is further: the DU bearing in driving gear rotating shaft and driven gear rotating shaft is arranged in corresponding floating buss respectively.
Floating buss has the W type drain charge groove relative with W seal groove near driving gear and the end face of driven gear; Described through hole one end is opened in the middle part of W type drain charge groove.
Floating buss is made by ZALSnCu alloy.
The present invention ZALSnCu alloy floating buss replaces the original ZL111 alloy sleeve of gear pump and the combination of bimetal floating side plate, improves its frictional behaviour; Sealing configuration adopts Stamping Steel Ribbon increased pressure board, utilize closed space that pressing plate and axle sleeve are formed to protect Stamping Steel Ribbon, replace originally adding by Stamping Steel Ribbon the sealing configuration that supporting bar forms, eliminate the narrow limitation being produced voltage withstand class by the intensity of supporting bar material therefor, thus improve the voltage withstand class of gear pump; Floating buss adopts ring seal, reduces gear face and leaks, improve volumetric efficiency.This invention simplifies gear pump structure, and improve voltage withstand class and the volumetric efficiency of gear pump.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cooperating structure schematic diagram of floating buss and W seal ring, W type pressing plate;
Fig. 3 is right elevation in Fig. 2;
Fig. 4 is left view in Fig. 2;
Fig. 5 is floating buss and W seal ring, W type pressure plate structure explosive view.
In figure: 1, driving gear; 2, hole back-up ring; 3, oil sealing; 4, protecgulum; 5, pin; 6, the pump housing; 7, bonnet; 8, bullet pad; 9, screw; 10, W seal ring; 11, DU bearing; 12, floating buss; 13, W type pressing plate; 14, driven gear; 15, end-face seal ring.
Embodiment
Be below a specific embodiment of the present invention, existing the present invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, a kind of high-pressure gear pump adopting new structure axle sleeve, comprise the pump housing 6, be arranged on the pump housing 6 by DU bearing 11 in and the driving gear 1 be engaged with each other and driven gear 14 and be sealed in protecgulum 4 and the bonnet 7 at the pump housing 6 two ends; The oil sealing 3 preventing hydraulic oil along the outside seepage of moving gear 1 rotating shaft is installed between driving gear 1 rotating shaft and protecgulum 4; The hole back-up ring 2 preventing oil sealing 3 from moving axially is provided with outside oil sealing 3.The pump housing 6 and be separately installed with the end-face seal ring 15 sealed between protecgulum 4 and bonnet 7.The pump housing 6 and protecgulum 4 are linked together by pin 5; Linked together by screw 9 and bullet pad 8 between the described pump housing 6 and bonnet 7.
Shown in composition graphs 1 to Fig. 5, the both ends of the surface of driving gear 1 and driven gear 14 are respectively provided with the floating buss 12 of a figure of eight; Floating buss 12 is provided with a W type pressing plate 13 away from an end face of driving gear 1 and driven gear 14; Stating floating buss 12 near an end face of W type pressing plate 13 has W seal groove, and the outer ring and the pump housing 6 inwall that are provided with W seal ring 10, W seal ring 10 in W seal groove are close to; Floating buss 12 also has and is communicated with the end face of floating buss 12 near driving gear 1 and driven gear 14 to the through hole a in the circle of other end W seal groove; W type pressing plate 13 is pressed on W seal ring 10, and the cooperation of W type pressing plate 13 is sunk in the W seal groove of floating buss 12, ensures W type pressing plate 13 outer surface and floating buss 12 end face.DU bearing 11 in driving gear 1 rotating shaft and driven gear 14 rotating shaft is arranged in corresponding floating buss 12 respectively.Floating buss 12 has the W type drain charge groove relative with W seal groove near driving gear 1 and the end face of driven gear 14; Through hole a one end is opened in the middle part of W type drain charge groove.Floating buss 12 is made by ZALSnCu alloy.
Driving gear 1 and driven gear 14 are meshed, and rotate under the drive of main frame motor, hydraulic oil are converted to high pressure oil and are transported in hydraulic system and go; Four DU bearings, 11 pairs of driving gears 1 and driven gear 14 play supporting role; In floating buss 12, W seal ring 10 and W type pressing plate 13 have combined end face seal action; Pressure-Resistant Oil Seal 3 prevents hydraulic oil along the outer seepage of gear axial pump; Hole back-up ring 2 prevents oil sealing from moving axially, and external connecting such as oil inlet and outlet, mounting flange, seam size, spindle nose connect form by manufacturer and user's consult to decide.
In the present invention, floating buss is built with W seal ring 10, W type pressing plate 13 and DU bearing 11.Floating buss adopts tin albronze material, makes there is good frictional behaviour between itself and gear face, bi-directional axial backlash compensation is adopted in axial seal, W seal ring 10 and W type pressing plate 13 is inlaid with in the seal groove at floating buss 12 back side, the power produced by W seal ring resiliently deformable will keep the gap only having one deck oil slick thickness between gear and floating buss, during gear pump work, the back side of floating buss introduced by hydraulic oil by the aperture a on floating buss, an impacting force is produced to floating buss, this impacting force is slightly larger than pushing power open to floating buss, and these two force directions are contrary, line of action overlaps, floating buss is fitted with gear face all the time, and hydraulic oil is introduced in W annular region, promote W seal ring and be close to surrounding metal surface, form hermetically sealed space, the clearance leakage that minimizing floating buss cylindrical and housing cavity are formed, improve the volumetric efficiency of gear pump.The airtight cavity formed by W type pressing plate and floating buss seal groove, shields to seal ring, improves the withstand voltage and durability of gear pump.
Claims (4)
1. adopt a high-pressure gear pump for new structure axle sleeve, comprise the pump housing (6), be arranged on by DU bearing (11) in the pump housing (6) and the driving gear be engaged with each other (1) and driven gear (14) and be sealed in protecgulum (4) and the bonnet (7) at the pump housing (6) two ends;
It is characterized in that: the both ends of the surface of described driving gear (1) and driven gear (14) are respectively provided with the floating buss (12) of a figure of eight; Described floating buss (12) is provided with a W type pressing plate (13) away from an end face of driving gear (1) and driven gear (14);
Described floating buss (12) has W seal groove near an end face of W type pressing plate (13), and be provided with W seal ring (10) in W seal groove, outer ring and the pump housing (6) inwall of W seal ring (10) are close to; Floating buss (12) also has the end face of the close driving gear (1) of connection floating buss (12) and driven gear (14) to the through hole (a) in the circle of other end W seal groove; Described W type pressing plate (13) is pressed on W seal ring (10), and W type pressing plate (13) cooperation is sunk in the W seal groove of floating buss (12), ensures W type pressing plate (13) outer surface and floating buss (12) end face.
2. the gear pump of employing new structure axle sleeve according to claim 1, is characterized in that: the DU bearing (11) in (1) rotating shaft of described driving gear and driven gear (14) rotating shaft is arranged in corresponding floating buss (12) respectively.
3. the gear pump of employing new structure axle sleeve according to claim 1, is characterized in that: described floating buss (12) has the W type drain charge groove relative with W seal groove near driving gear (1) with the end face of driven gear (14); Described through hole (a) one end is opened in the middle part of W type drain charge groove.
4. the gear pump of employing new structure axle sleeve according to claim 1, is characterized in that: described floating buss (12) is made by ZALSnCu alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828547.5A CN105351186A (en) | 2015-11-25 | 2015-11-25 | High-pressure gear pump with shaft sleeves of new structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510828547.5A CN105351186A (en) | 2015-11-25 | 2015-11-25 | High-pressure gear pump with shaft sleeves of new structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351186A true CN105351186A (en) | 2016-02-24 |
Family
ID=55327228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510828547.5A Pending CN105351186A (en) | 2015-11-25 | 2015-11-25 | High-pressure gear pump with shaft sleeves of new structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351186A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781291A (en) * | 2016-08-29 | 2018-03-09 | 河南航天液压气动技术有限公司 | A kind of pump of balanced radial force combination floating buss |
| CN108425838A (en) * | 2018-04-13 | 2018-08-21 | 合肥长源液压股份有限公司 | A kind of gear oil pump reducing gear force in radial |
| CN108799102A (en) * | 2018-08-22 | 2018-11-13 | 徐晓旭 | Cam side end face abrasion-proof structure in a kind of gear pump middle gear or lobe pump |
| CN109958618A (en) * | 2019-05-04 | 2019-07-02 | 世特科汽车工程产品（常州）有限公司 | A kind of external gear rotary pump that can compensate end clearance |
| CN110608236A (en) * | 2019-07-11 | 2019-12-24 | 合肥力威汽车油泵有限公司 | Floating bearing seat |
| CN116877422A (en) * | 2023-08-07 | 2023-10-13 | 深圳华星恒泰泵阀有限公司 | Gear pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4958994A (en) * | 1987-01-16 | 1990-09-25 | Robert Bosch Gmbh | Gear Machine for a pump or engine having bearing members with circumferential relief grooves |
| CN2549210Y (en) * | 2002-05-20 | 2003-05-07 | 杭州萧山云祥工程机械厂 | Double-axial seal compensating high pressure gear pump |
| CN102927002A (en) * | 2012-12-04 | 2013-02-13 | 泸州众大科技液压件有限公司 | High-pressure gear pump |
| CN103122853A (en) * | 2013-01-11 | 2013-05-29 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with pressing plate |
| CN104533786A (en) * | 2014-12-26 | 2015-04-22 | 徐州科源液压股份有限公司 | Gear pump adopting new structure shaft sleeves |
| CN205207163U (en) * | 2015-11-25 | 2016-05-04 | 徐州科源液压股份有限公司 | Adopt high -pressure gear pump of new construction axle sleeve |
-
2015
- 2015-11-25 CN CN201510828547.5A patent/CN105351186A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4958994A (en) * | 1987-01-16 | 1990-09-25 | Robert Bosch Gmbh | Gear Machine for a pump or engine having bearing members with circumferential relief grooves |
| CN2549210Y (en) * | 2002-05-20 | 2003-05-07 | 杭州萧山云祥工程机械厂 | Double-axial seal compensating high pressure gear pump |
| CN102927002A (en) * | 2012-12-04 | 2013-02-13 | 泸州众大科技液压件有限公司 | High-pressure gear pump |
| CN103122853A (en) * | 2013-01-11 | 2013-05-29 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with pressing plate |
| CN104533786A (en) * | 2014-12-26 | 2015-04-22 | 徐州科源液压股份有限公司 | Gear pump adopting new structure shaft sleeves |
| CN205207163U (en) * | 2015-11-25 | 2016-05-04 | 徐州科源液压股份有限公司 | Adopt high -pressure gear pump of new construction axle sleeve |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781291A (en) * | 2016-08-29 | 2018-03-09 | 河南航天液压气动技术有限公司 | A kind of pump of balanced radial force combination floating buss |
| CN107781291B (en) * | 2016-08-29 | 2019-08-30 | 河南航天液压气动技术有限公司 | A kind of pump of balanced radial force combination floating buss |
| CN108425838A (en) * | 2018-04-13 | 2018-08-21 | 合肥长源液压股份有限公司 | A kind of gear oil pump reducing gear force in radial |
| CN108425838B (en) * | 2018-04-13 | 2024-03-19 | 合肥长源液压股份有限公司 | Gear oil pump capable of reducing radial force borne by gear |
| CN108799102A (en) * | 2018-08-22 | 2018-11-13 | 徐晓旭 | Cam side end face abrasion-proof structure in a kind of gear pump middle gear or lobe pump |
| CN108799102B (en) * | 2018-08-22 | 2023-12-22 | 徐晓旭 | Gear in gear pump or cam side end face wear-resisting structure in cam pump |
| CN109958618A (en) * | 2019-05-04 | 2019-07-02 | 世特科汽车工程产品（常州）有限公司 | A kind of external gear rotary pump that can compensate end clearance |
| CN110608236A (en) * | 2019-07-11 | 2019-12-24 | 合肥力威汽车油泵有限公司 | Floating bearing seat |
| CN116877422A (en) * | 2023-08-07 | 2023-10-13 | 深圳华星恒泰泵阀有限公司 | Gear pump |
| CN116877422B (en) * | 2023-08-07 | 2024-01-23 | 深圳华星恒泰泵阀有限公司 | Gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |