CN206290432U - A kind of gear pump of use shock resistance type floating side plate - Google Patents
A kind of gear pump of use shock resistance type floating side plate Download PDFInfo
- Publication number
- CN206290432U CN206290432U CN201621372612.4U CN201621372612U CN206290432U CN 206290432 U CN206290432 U CN 206290432U CN 201621372612 U CN201621372612 U CN 201621372612U CN 206290432 U CN206290432 U CN 206290432U
- Authority
- CN
- China
- Prior art keywords
- side plate
- floating side
- gear
- floating
- seal
- 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.)
- Active
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model announces a kind of gear pump of use shock resistance type floating side plate, including the pump housing, protecgulum, driving gear and driven gear, described driving gear and the both sides end face of driven gear are mounted on floating side plate, floating side plate is provided with drain charge groove with the mating surface of driving gear and driven gear, the coast side of tooth of floating side plate is provided with W seal grooves, floating side plate middle part is provided with the through hole I in the groove of drain charge groove to coast side of tooth W seal grooves, two through holes II through floating side plate are additionally provided with the groove of W seal grooves, floating side plate per side is sequentially installed with W sealing rings in coast side of tooth, pressing plate and fixed side, described W sealing rings are embedded in W seal grooves.Floating side plate of the present utility model increased through hole II, in pressure jump, pressure energy moment reaches an agreement on the tow sides of floating side plate, and because through hole II is opened in the larger region of W sealing ring balancing forces, while also improving the integral pressure equilibrium problem of floating side plate.
Description
Technical field
The utility model is related to a kind of gear pump, specifically a kind of gear pump of use shock resistance type floating side plate.
Background technology
The high-pressure gear pump of my company production at present its floating side plate uses enclosed annular sealing means, to reduce tooth
Wheel end face and radial leakage, improve volumetric efficiency, in subsequent use, it is found that the gear pump of this kind of structure is using impact frequency
Fault rate is higher under rate operating mode high, when the pressure of hydraulic circuit drops to 0MPa by high pressure 25MPa moments, floating side plate with
The pressure of gear face mating surface can drop to 0MPa, but the pressure that the floating side plate back side is introduced by aperture d moment, due to passage
Narrower and long, so delayed compared with front on the response time, moment is greater than to the thrust of floating side plate and pushes power open, gear mesh
Floating side plate frictional force increases, and the heat for producing that rubs increases, and heat is continuously increased under high-frequency impact, due to high temperature, floats
Dynamic side plate can be deformed in rigidity with respect to weak area first, i.e., two ends tilt, and abnormal mill is produced between gear and floating side plate
Damage, burn, seal failure can not set up pressure to gear pump.
Utility model content
In place of in order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of using shock resistance type floating side
The gear pump of plate.
The utility model is achieved by the following technical solution：A kind of gear pump of use shock resistance type floating side plate,
Protecgulum on the pump housing is connected to including the pump housing, by alignment pin and in the pump housing and intermeshing driving gear and from
Moving gear, described driving gear and the both sides end face of driven gear are mounted on floating side plate, floating side plate and driving gear
The mating surface being in contact with the end face of driven gear is provided with drain charge groove, and it is close in the W of " W " type that the coast side of tooth of floating side plate is provided with profile
Sealing groove, floating side plate middle part is provided with the through hole I in the groove of drain charge groove to coast side of tooth W seal grooves, is being leaned in the groove of W seal grooves
The floating side of the through hole II through floating side plate, driving gear and driven gear both sides is closely equipped with the both sides cecum of " W " shape
Plate is sequentially installed with W sealing rings, pressing plate and fixed side in coast side of tooth, and described W sealing rings are embedded in W seal grooves.
Further, described floating side plate is " 8 " font, and the drain charge groove shape on floating side plate is in and W seal groove phases
To " W " type.
Further, deep groove ball bearing is housed, deep groove ball bearing is remote between the rotating shaft of described driving gear and protecgulum
The back-up ring I for preventing deep groove ball bearing from moving axially is installed from driving gear one end.
Further, Pressure-Resistant Oil Seal is also equipped between the rotating shaft of described driving gear and protecgulum, Pressure-Resistant Oil Seal is located at deep
Between ditch ball bearing and driving gear, Pressure-Resistant Oil Seal is being provided with oil seal collar away from deep groove ball bearing one end, and Pressure-Resistant Oil Seal is another
One end is provided with the back-up ring II for preventing Pressure-Resistant Oil Seal from moving axially.
Further, the rotating shaft of described driving gear is equal on the outside of the fixed side of both sides with the rotating shaft of driven gear
Needle bearing is installed.
Further, equipped with the rectangular seal for sealing between the described pump housing and protecgulum.
The beneficial effects of the utility model are：Floating side plate of the present utility model on original base, in sub-high pressure area
Through hole II is increased, in pressure jump, the pressure energy moment of the tow sides of floating side plate reaches an agreement, and because through hole II is opened
In the region that W sealing ring balancing forces are larger, while also improving the integral pressure equilibrium problem of floating side plate, test by contrast,
Gear pump was stablized relatively before the interval internal volume efficiency change of super-pressure is relatively, and specific test data see the table below：
| Pressure（MPa） | 0 | 5 | 10 | 15 | 20 | 25 | 30 | 25 |
| Preceding flow value (L/min) is not improved | 126.3 | 126.3 | 126.3 | 126.3 | 124.1 | 121.8 | 123 | 120 |
| Flow value (L/min) after improvement | 126.3 | 126.3 | 126.3 | 126.3 | 124.1 | 122 | 120 | 122 |
Be can be seen that by upper group of test data, when pressure is increased to 30MPa, do not improve preceding volumetric efficiency increases on the contrary, says
Bright balancing force interval herein causes floating side plate to be adjacent to gear face, between not well beyond the propulsive thrust of gear
Oil film can be formed, side plate has abrasion plus evidence, so when pressure is transferred to 25MPa again, flow has relatively declined before, transports for a long time
Guild causes side plate abrasion heating, and final side plate burns out, gear pump failure.This two groups of pumps through opening and inspecting, the abrasion condition of its side plate
Matched with test data, it is much smaller that the side plate wear extent and modification amount after improvement do not improve side plate relatively.Tried through main engine plants
With, to improve the gear pump after side plate and used under frequency of impact operating mode high, fault rate is substantially reduced.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model；
Fig. 2 is left view of the present utility model；
Fig. 3 is the utility model floating side plate mating surface view；
Fig. 4 is the utility model A-A sectional views；
Fig. 5 is the utility model floating side plate coast side of tooth view；
In figure, 1, driving gear, 2, back-up ring I, 3, deep groove ball bearing, 4, back-up ring II, 5, Pressure-Resistant Oil Seal, 6, oil seal collar,
7th, protecgulum, 8, needle bearing, 9, alignment pin, 10, rectangular seal, 11, floating side plate, 12, W sealing rings, 13, pressing plate, 14, solid
Determine side plate, 15, the pump housing, 16, driven gear, 17, through hole I, 18, through hole II.
Specific embodiment
The utility model is further illustrated below according to drawings and Examples.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, a kind of gear pump of use shock resistance type floating side plate, including it is the pump housing 15, logical
Cross protecgulum 7 that alignment pin 9 is connected on the pump housing 15 and in the pump housing 15 and intermeshing driving gear 1 and driven tooth
Wheel 16, described driving gear 1 and the both sides end face of driven gear 16 are mounted on floating side plate 11, floating side plate 11 and active
The mating surface that the end face of gear 1 and driven gear 16 is in contact is provided with drain charge groove, and the coast side of tooth of floating side plate 11 is provided with profile and is in
The W seal grooves of " W " type, the middle part of floating side plate 11 is provided with the through hole I 17 in the groove of drain charge groove to coast side of tooth W seal grooves, and W is close
Being equipped with the through hole II 18 through floating side plate 11 at the both sides cecum of " W " shape in the groove of sealing groove, driving gear 1 and from
The floating side plate 11 of the both sides of moving gear 16 is sequentially installed with W sealing rings 12, pressing plate 13 and fixed side 14 in coast side of tooth, described
W sealing rings 12 are embedded in W seal grooves.Driving gear of the present utility model 1 and driven gear 16 are meshed, in main frame engine
Drive under rotate, hydraulic oil is converted into hydraulic oil and is transported in hydraulic system；Floating side plate 11, the sealing of fixed side 14, W
12 and 13 end face sealing functions of pressing plate are enclosed, pressing plate 13 can also protect W sealing rings 12 not to be hit in addition；The elasticity of W sealing rings 12
Deforming the power for producing makes to keep only having one layer of gap of oil film thickness between gear and floating side plate 11, fuel-displaced during gear pump work
The hydraulic oil of mouth introduces the coast side of tooth of floating side plate 11 by the through hole I 17 on floating side plate 11, while the hydraulic pressure in sub-high pressure area
Oil introduces the coast side of tooth of floating side plate by the through hole II 18 on floating side plate, and the pressure difference before and after such floating side plate is 0, is floated
Side plate 11 is provided the thrust of gear face by the decrement of rectangular seal 10 completely, floating side plate 11 push open power with
The difference of thrust is certain value, and the pressure size with gear pump is unrelated, and thus gear pump volumetric efficiency can preferably be ensured,
And hydraulic oil is introduced in W annular regions, promote W sealing rings 12 to be close to surrounding metal surface, form hermetically sealed space, reduce and float
The clearance leakage that the inner chamber of the cylindrical and pump housing 15 of side plate 11 is formed, improves the volumetric efficiency of gear pump.
As shown in figure 3, described floating side plate 11 is " 8 " font, the drain charge groove shape on floating side plate 11 is in be sealed with W
Relative " W " type of groove.
As shown in figure 1, being equipped with deep groove ball bearing 3, deep groove ball bearing 3 between the rotating shaft of described driving gear 1 and protecgulum 7
The back-up ring I 2 of the axial movement of deep groove ball bearing 3 is prevented being provided with away from the one end of driving gear 1.Deep groove ball bearing 3 is actively
Gear 1 is subject to the outer radial masterpiece used time, to pumping up protective effect.
As shown in figure 1, Pressure-Resistant Oil Seal 5 is also equipped between the rotating shaft of described driving gear 1 and protecgulum 7, Pressure-Resistant Oil Seal 5
Between deep groove ball bearing 3 and driving gear 1, Pressure-Resistant Oil Seal 5 is being provided with oil seal collar 6 away from the one end of deep groove ball bearing 3, resistance to
Force feed 5 other ends of envelope are provided with the back-up ring II 4 for preventing Pressure-Resistant Oil Seal 5 from moving axially.Pressure-Resistant Oil Seal 5 and oil seal collar 6 prevent hydraulic pressure
Oil is along the rotating shaft of driving gear 1 to seepage outside pump.Needle bearing 8 play supporting role to driving gear 1 and driven gear 16.
As shown in figure 1, in the fixed side 14 of both sides in the rotating shaft of described driving gear 1 and the rotating shaft of driven gear 16
Outside is mounted on needle bearing 8.Because the utility model compact conformation, the size-constrained system of radially installed, and needle bearing has
There is less section, therefore radial structure is compact, and needle bearing internal diameter size and load-carrying ability are identical with other types of bearings
When, minimum outer diameter, so being supporting structure used here as needle bearing.
As shown in figure 1, equipped with the rectangular seal 10 for sealing between the described pump housing 15 and protecgulum 7.
As shown in Fig. 2 the pump housing for combining and protecgulum are fastened by four bolt and spring washer circles and turn into a simply connected tooth
Wheel pump.
Claims (6)
1. a kind of gear pump of use shock resistance type floating side plate, including the pump housing（15）, by alignment pin（9）It is connected to the pump housing
（15）On protecgulum（7）And installed in the pump housing（15）Interior and intermeshing driving gear（1）And driven gear（16）, it is special
Levy and be：Described driving gear（1）And driven gear（16）Both sides end face be mounted on floating side plate（11）, floating side plate
（11）With driving gear（1）And driven gear（16）The mating surface that is in contact of end face be provided with drain charge groove, floating side plate（11）'s
Coast side of tooth is provided with W seal groove of the profile in " W " type, floating side plate（11）Middle part is provided with through drain charge groove to coast side of tooth W seal grooves
Groove in through hole I（17）, it is equipped with through floating side plate at the both sides cecum of " W " shape in the groove of W seal grooves（11）
Through hole II（18）, driving gear（1）And driven gear（16）The floating side plate of both sides（11）It is close W to be sequentially installed with coast side of tooth
Seal（12）, pressing plate（13）And fixed side（14）, described W sealing rings（12）It is embedded in W seal grooves.
2. the gear pump of a kind of use shock resistance type floating side plate according to claim 1, it is characterised in that：Described is floating
Dynamic side plate（11）It is " 8 " font, floating side plate（11）On drain charge groove shape be in " W " type relative with W seal grooves.
3. the gear pump of a kind of use shock resistance type floating side plate according to claim 1, it is characterised in that：Described master
Moving gear（1）Rotating shaft and protecgulum（7）Between be equipped with deep groove ball bearing（3）, deep groove ball bearing（3）Away from driving gear（1）
One end is provided with prevents deep groove ball bearing（3）The back-up ring I of axial movement（2）.
4. the gear pump of a kind of use shock resistance type floating side plate according to claim 3, it is characterised in that：Described master
Moving gear（1）Rotating shaft and protecgulum（7）Between be also equipped with Pressure-Resistant Oil Seal（5）, Pressure-Resistant Oil Seal（5）Positioned at deep groove ball bearing（3）With
Driving gear（1）Between, Pressure-Resistant Oil Seal（5）Away from deep groove ball bearing（3）One end is provided with oil seal collar（6）, Pressure-Resistant Oil Seal
（5）The other end is provided with prevents Pressure-Resistant Oil Seal（5）The back-up ring II of axial movement（4）.
5. the gear pump of a kind of use shock resistance type floating side plate according to claim 1, it is characterised in that：Described master
Moving gear（1）Rotating shaft and driven gear（16）Rotating shaft on both sides fixed side（14）Outside is mounted on needle bearing
（8）.
6. the gear pump of a kind of use shock resistance type floating side plate according to claim 1, it is characterised in that：Described pump
Body（15）With protecgulum（7）Between equipped with for seal rectangular seal（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621372612.4U CN206290432U (en) | 2016-12-14 | 2016-12-14 | A kind of gear pump of use shock resistance type floating side plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621372612.4U CN206290432U (en) | 2016-12-14 | 2016-12-14 | A kind of gear pump of use shock resistance type floating side plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290432U true CN206290432U (en) | 2017-06-30 |
Family
ID=59105388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621372612.4U Active CN206290432U (en) | 2016-12-14 | 2016-12-14 | A kind of gear pump of use shock resistance type floating side plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290432U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523348A (en) * | 2016-12-14 | 2017-03-22 | 徐州科源液压股份有限公司 | Gear pump adopting impact-resistant type floating side plates |
| CN107420299A (en) * | 2017-09-07 | 2017-12-01 | 合肥长源液压股份有限公司 | A kind of multi-joint heavy-duty gear pump of lightweight structure design |
| CN107605731A (en) * | 2017-07-13 | 2018-01-19 | 北京航空航天大学 | A kind of end clearance autocompensation installation for being used for two stroke aviation piston engine scavenging pumps |
| CN112709692A (en) * | 2020-12-29 | 2021-04-27 | 西安精密机械研究所 | Axial compensation mechanism for improving volumetric efficiency of sea water pump and sea water pump |
| CN113374686A (en) * | 2021-07-12 | 2021-09-10 | 江南大学 | Thrust plate of high-pressure gear pump and design method of compensation oil groove of thrust plate |
-
2016
- 2016-12-14 CN CN201621372612.4U patent/CN206290432U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523348A (en) * | 2016-12-14 | 2017-03-22 | 徐州科源液压股份有限公司 | Gear pump adopting impact-resistant type floating side plates |
| CN107605731A (en) * | 2017-07-13 | 2018-01-19 | 北京航空航天大学 | A kind of end clearance autocompensation installation for being used for two stroke aviation piston engine scavenging pumps |
| CN107605731B (en) * | 2017-07-13 | 2019-04-05 | 北京航空航天大学 | A kind of end clearance autocompensation installation for two stroke aviation piston engine scavenging pumps |
| CN107420299A (en) * | 2017-09-07 | 2017-12-01 | 合肥长源液压股份有限公司 | A kind of multi-joint heavy-duty gear pump of lightweight structure design |
| CN112709692A (en) * | 2020-12-29 | 2021-04-27 | 西安精密机械研究所 | Axial compensation mechanism for improving volumetric efficiency of sea water pump and sea water pump |
| CN112709692B (en) * | 2020-12-29 | 2023-02-17 | 西安精密机械研究所 | Axial compensation mechanism for improving volumetric efficiency of sea water pump and sea water pump |
| CN113374686A (en) * | 2021-07-12 | 2021-09-10 | 江南大学 | Thrust plate of high-pressure gear pump and design method of compensation oil groove of thrust plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206290432U (en) | A kind of gear pump of use shock resistance type floating side plate | |
| JP6578047B2 (en) | Sliding parts | |
| CN106523348A (en) | Gear pump adopting impact-resistant type floating side plates | |
| CN201396371Y (en) | Full complement roller bearing with high-performance sealing structure | |
| CN202149066U (en) | High temperature-resistant high pressure-resistant wear-resisting and corrosion-resisting centrifugal pump | |
| CN102359596A (en) | Seal structure with unidirectionally-rotatable three-dimensional L-shaped groove end face | |
| CN101566158A (en) | High performance mechanical canned motor pump | |
| CN109653973B (en) | Water lubrication shaft valve composite flow distribution radial plunger pump | |
| CN206221142U (en) | A kind of inclined disc type hydraulic plunger motor or pump for using submerged in water | |
| CN103174506A (en) | Turbocharger | |
| CN202431523U (en) | Backpressure cavity sealing device of scroll compressor and scroll compressor using the same | |
| CN104019024A (en) | Leakproof dynamic pressure type valve plate | |
| CN201090490Y (en) | Fore pump with improved structure | |
| CN205559271U (en) | High -pressure gear pump curb plate | |
| CN207470779U (en) | A kind of elastic floating ring oil sealing of journal bearing | |
| CN105090258A (en) | Rolling bearing structure of gear pump and gear pump | |
| CN214036093U (en) | Sealing structure of duplex gear pump with clearance compensation function | |
| CN216429929U (en) | Combined floating packing sealing structure of melt discharging gear pump | |
| CN205207163U (en) | Adopt high -pressure gear pump of new construction axle sleeve | |
| CN114135518A (en) | Centrifugal fresh water pump | |
| CN104912730A (en) | Inner curvilinear low-speed large-torque water hydraulic motor with replaceable wearproof dish | |
| CN202326267U (en) | Two-stage chemical engineering process pump | |
| CN201448241U (en) | Annular balance piston | |
| CN206449109U (en) | High-speed fuel oil gear pump floating bearing | |
| CN102116279A (en) | 4.5ml/r ultrahigh-pressure electro-hydraulic proportional control radial plunger pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |