CN205207163U - Adopt high -pressure gear pump of new construction axle sleeve - Google Patents
Adopt high -pressure gear pump of new construction axle sleeve Download PDFInfo
- Publication number
- CN205207163U CN205207163U CN201520951828.5U CN201520951828U CN205207163U CN 205207163 U CN205207163 U CN 205207163U CN 201520951828 U CN201520951828 U CN 201520951828U CN 205207163 U CN205207163 U CN 205207163U
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- axle sleeve
- gear
- face
- floating buss
- clamp plate
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Abstract
The utility model discloses an adopt high -pressure gear pump of new construction axle sleeve. Including the pump body, install driving gear and the driven gear in the pump body and seal up protecgulum and the hou gai at pump body both ends through the DU bearing, an unsteady axle sleeve is respectively installed to driving gear and driven gear's both ends face, be equipped with a W type clamp plate on the unsteady axle sleeve one end face, the axle sleeve that floats is opened near a terminal surface of W type clamp plate has the W seal groove, and W type clamp plate is pressed on the W sealing washer, and the cooperation of W type clamp plate guarantees that W type clamp plate surface and unsteady axle sleeve terminal surface flush in sinking to the W seal groove of the axle sleeve that floats. The utility model discloses use the unsteady axle sleeve of ZALSnCu alloy, improve its friction properties, seal structure adopts the sealing strip increased pressure board, utilizes clamp plate and the closed space that the axle sleeve formed to protect the sealing strip, puies forward the withstand voltage grade of high tooth wheel cylinder, the axle sleeve that floats adopts the loop type sealed, reduces the gear face and leaks, improves volume efficiency.
Description
Technical field
The utility model 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 utility model provides a kind of high-pressure gear pump adopting new structure axle sleeve.
The utility model 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 utility model 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.The utility model simplifies gear pump structure, and improves voltage withstand class and the volumetric efficiency of gear pump.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
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 utility model, now by reference to the accompanying drawings the utility model be described further.
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 utility model, 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 (3)
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. a kind of high-pressure gear pump adopting 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. a kind of high-pressure gear pump adopting 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951828.5U CN205207163U (en) | 2015-11-25 | 2015-11-25 | Adopt high -pressure gear pump of new construction axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951828.5U CN205207163U (en) | 2015-11-25 | 2015-11-25 | Adopt high -pressure gear pump of new construction axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207163U true CN205207163U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520951828.5U Active CN205207163U (en) | 2015-11-25 | 2015-11-25 | Adopt high -pressure gear pump of new construction axle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351186A (en) * | 2015-11-25 | 2016-02-24 | 徐州科源液压股份有限公司 | High-pressure gear pump with shaft sleeves of new structure |
| CN108757440A (en) * | 2018-05-25 | 2018-11-06 | 西北工业大学 | A kind of fixing bearing component for gear pump |
-
2015
- 2015-11-25 CN CN201520951828.5U patent/CN205207163U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351186A (en) * | 2015-11-25 | 2016-02-24 | 徐州科源液压股份有限公司 | High-pressure gear pump with shaft sleeves of new structure |
| CN108757440A (en) * | 2018-05-25 | 2018-11-06 | 西北工业大学 | A kind of fixing bearing component for gear pump |
| CN108757440B (en) * | 2018-05-25 | 2020-06-30 | 西北工业大学 | Fixed bearing assembly for gear pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |