CN105952637A - Large displacement high pressure gear pump with driving and driven wheels in different sizes - Google Patents
Large displacement high pressure gear pump with driving and driven wheels in different sizes Download PDFInfo
- Publication number
- CN105952637A CN105952637A CN201610425244.3A CN201610425244A CN105952637A CN 105952637 A CN105952637 A CN 105952637A CN 201610425244 A CN201610425244 A CN 201610425244A CN 105952637 A CN105952637 A CN 105952637A
- Authority
- CN
- China
- Prior art keywords
- gear pump
- pump
- gear
- driving
- floating side
- 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
-
- 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
-
- 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
- F04C15/0007—Radial sealings for working fluid
- F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
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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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
-
- 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
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/802—Liners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a large displacement high pressure gear pump with driving and driven wheels in different sizes. A conventional external engaging gear pump is relatively great in flow pulsation, high in noise, low in efficiency and low in pressure. The large displacement high pressure gear pump with driving and driven wheels in different sizes disclosed by the invention comprises a pump body, a front cover and a rear cover connected to the pump body, a pair of gear pairs with driving and driven wheels in different sizes and two symmetrical floating side plates, wherein two roller bearings are arranged at the driving wheel, two DU bearings are arranged at the driven wheel, a set of E-shaped seal ring is arranged on the back of each floating side plate, and an outer seal ring is arranged between the pump body and the front cover and between the pump body and the rear cover, respectively. When the gear pump disclosed by the invention is in a large displacement high pressure operation, the bearing areas of the pump body and the front and back covers are effectively reduced, and the stress environments of parts such as gears, the floating side plates and bearings are greatly improved, so that the working pressure of the gear pump is improved to 1.5 times of that of a common gear pump, the rated working pressure of the gear pump reaches 16MPa and the highest pressure of the gear pump reaches 20MPa.
Description
Technical field
The present invention relates to a kind of gear pump, the high-pressure gear pump varied in size particularly to a kind of huge discharge driven wheel.
Background technology
The operation principle of gear pump is such that involute gear that pair of meshing, that parameter is identical with structure and is installed on enclosure interior, and the both ends of the surface of gear are by end cap seal, and two such gear just divide into the oil pocket that two, left and right seals in housing.When gear is rotated by either direction, the side cavity volume gear teeth exit engagement and expose between cog, make this chamber volume increase and form parital vacuum and oil suction.The opposite side cavity volume gear teeth enter engagement, and volume reduces between cog fluid and is gradually extruded, and completes force feed process.Conventional external gear rotary pump simple in construction, has flow pulsation compared with the feature such as big, noise is high, efficiency is low, and pressure is low, and individual part stressing conditions is severe.In order to improve gear pump service behaviour, optimizing component structural, extend its service life, the designer in experts and scholars both domestic and external and enterprise has done substantial amounts of research work, but the gear pump that the gear being used for walking machine varies in size is the most fewer.
Summary of the invention
For the deficiencies in the prior art, the present invention provides the high-pressure gear pump that a kind of driven wheel varies in size, and while ensureing the higher volumetric efficiency of gear pump and aggregate efficiency, low noise, has again advantage easy for installation.
To achieve these goals, the present invention adopts the following technical scheme that
The high-pressure gear pump that a kind of huge discharge driven wheel varies in size, the gear pair that the protecgulum being connected with the pump housing including the pump housing and bonnet, a pair driven wheel vary in size, two symmetrical floating side plates, wherein it is provided with two roller bearings at drivewheel, two DU bearings it are provided with at driven pulley, the described floating side plate back side is respectively arranged with a set of E shape sealing ring, is respectively equipped with an exterior seal ring between the described pump housing and protecgulum, the pump housing and bonnet.
The operation principle of the present invention is such, use main, the gear pair design that driven pulley varies in size improves gear radial force, by selecting the bimetallic material of high intensity, improve floating side plate intensity, optimize the force structure of inner components, face leakage is reduced by increasing E shape sealing ring, the most both improve gear pump operating pressure and also improve volumetric efficiency, the sealing property of pump is guaranteed by increasing exterior seal ring, the block bearing design uniqueness that this gear pump gear is secondary simultaneously, drivewheel uses two roller bearings, and driven pulley uses two DU bearings, the most both the advantage that rolling frictional resistance is little had been played, maintain again sliding bearing bearing capacity big, the advantage that motion artifacts is little.
Preferably, said two floating side plate is bimetallic planar structure, improves floating side plate intensity.
Further, described protecgulum and bonnet are made up of high-strength cast iron material, and the described pump housing is made by stretching aluminium section bar.Making protecgulum, bonnet have higher compressive resistance, the pump housing has higher bearing capacity.
Compared with prior art, the present invention has following technical effect that
Use the gear pair design that driven wheel varies in size, any PTO shaft can not only be met and install and the needs of big flow output, and by reducing the number of teeth of driven pulley, make tooth tip diameter diminish, reduce pump housing volume, improve the radial force state of gear pair.
Two floating side plates are bimetallic planar structure, have corresponding rigidity requirement and bearing capacity, reduce floating side plate stress deformation under high pressure, reduce gear pump internal leakage in a high voltage state.
The design of drivewheel roller bearing, driven pulley DU bearing supporting, makes the high mechanical efficiency of roller bearing and the high-bearing capacity of sliding bearing, low noise obtain perfect adaptation, improves gear pump performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that the present invention overlooks sectional structure sketch；
Fig. 3 is the structure figure of floating side plate of the present invention.
In above-mentioned accompanying drawing, 1, protecgulum, 2, bonnet, 3, the pump housing, 4, drivewheel, 5, driven pulley, 6, floating side plate, 7, roller bearing, 8, DU bearing, 9, E shape sealing ring, 10, inner shield ring, 11, straight pin, 12, hex bolts, 13, outside framework oil seal, 14, O-ring seals.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is further described.
As shown in Figures 1 to 3, the present invention includes the gear pair that protecgulum 1 that the pump housing 3 is connected and bonnet 2, a pair driven wheel vary in size, two symmetrical floating side plates 6 with the pump housing 3.Wherein it is provided with two roller bearings 7 at drivewheel 4, two DU bearings 8 it are provided with at driven pulley 5, floating side plate 6 back side is respectively arranged with a set of E shape sealing ring 9, is respectively equipped with an exterior seal ring between the pump housing 3 and protecgulum 1, the pump housing 3 and bonnet 2, and this exterior seal ring uses O-ring seals 14.
As in figure 2 it is shown, a pair modulus is identical, number of teeth gear pair not etc. compared with the gear pump of common identical parameters gear pair, volume is less, weight saving, and the stress bearing area of gear vestibule is less.
As it is shown in figure 1, protecgulum 1 and bonnet 2 are made up of high-strength cast iron material, the pump housing 3 is made up of stretching aluminium section bar.Making protecgulum 1, bonnet 2 have higher compressive resistance, the pump housing 3 has higher bearing capacity.Floating side plate 6 uses bimetallic material, has enough rigidity, it is ensured that be basically unchanged shape under high pressure operating mode, enhances the sealing of gear face, decreases gear pump internal leakage, it is ensured that gear pump flow when high temperature and low speed is bigger.
The block bearing design uniqueness of gear pair of the present invention, installs a pair roller bearing 7 in the drivewheel 4 axle bed hole of pump cover, and a pair DU bearing 8 is installed in driven pulley 5 axle bed hole, makes gear pair obtain reliable bearing capacity and startability.The most both play the advantage that rolling frictional resistance is little, maintain again the advantage that sliding bearing bearing capacity is big, motion artifacts is little.As it is shown on figure 3, bimetallic floating side plate 6 band E shape seal groove, the E shape sealing ring 9 of supporting suitable dimension and inner shield ring 10, make this gear pump not only possess reliable High voltage output ability, and there is higher volumetric efficiency and mechanical efficiency.
Owing to using above-mentioned design, make gear pump when big-flow high-pressure runs, the most effectively reduce the pump housing 3 and the bearing area of front and rear covers, and the force environment of the parts such as gear, floating side plate 6 and bearing has greatly improvement, gear pump operating pressure is made to bring up to 1.5 times of common gear pump, its rated operating pressure reaches 16MPa, and maximum pressure reaches 20MPa.Owing to the internal spline drive shaft of drivewheel 4 designs, can be arbitrarily installed on the walking machine of band PTO output shaft, user friendly install and use.
Claims (3)
1. the high-pressure gear pump that a huge discharge driven wheel varies in size, it is characterized in that including the gear pair that protecgulum that the pump housing is connected and bonnet, a pair driven wheel vary in size with the pump housing, two symmetrical floating side plates, wherein it is provided with two roller bearings at drivewheel, two DU bearings it are provided with at driven pulley, the described floating side plate back side is respectively arranged with a set of E shape sealing ring, is respectively equipped with an exterior seal ring between the described pump housing and protecgulum, the pump housing and bonnet.
The high-pressure gear pump that a kind of huge discharge driven wheel the most according to claim 1 varies in size, it is characterised in that: said two floating side plate is bimetallic planar structure.
The high-pressure gear pump that a kind of huge discharge driven wheel the most according to claim 1 and 2 varies in size, it is characterised in that: described protecgulum and bonnet are made up of high-strength cast iron material, and the described pump housing is made by stretching aluminium section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425244.3A CN105952637A (en) | 2016-06-16 | 2016-06-16 | Large displacement high pressure gear pump with driving and driven wheels in different sizes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610425244.3A CN105952637A (en) | 2016-06-16 | 2016-06-16 | Large displacement high pressure gear pump with driving and driven wheels in different sizes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105952637A true CN105952637A (en) | 2016-09-21 |
Family
ID=56906702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610425244.3A Pending CN105952637A (en) | 2016-06-16 | 2016-06-16 | Large displacement high pressure gear pump with driving and driven wheels in different sizes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989011A (en) * | 2017-05-11 | 2017-07-28 | 常州大学 | External toothing button pump |
| CN113348303A (en) * | 2019-03-08 | 2021-09-03 | 株式会社岛津制作所 | Helical gear pump or motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN203051104U (en) * | 2013-02-04 | 2013-07-10 | 初月涛 | High-pressure gear oil pump |
| DE102012209152A1 (en) * | 2012-05-31 | 2013-12-05 | Robert Bosch Gmbh | Gear machine e.g. pump is formed with recess with two portions extended in different directions, such that pressurized fluid pass into recess in direct contact with bearing sleeve and tooth space of associated gearwheel |
| CN203420884U (en) * | 2013-06-17 | 2014-02-05 | 合肥市穗意液压技术有限公司 | Floating type side plate on gear oil pump |
| US20140161655A1 (en) * | 2011-07-08 | 2014-06-12 | Edward L. Simonds | Pump |
| CN105649976A (en) * | 2015-12-29 | 2016-06-08 | 西安航天动力研究所 | Micro different-tooth-number high-speed magnetic-driving electric gear pump |
-
2016
- 2016-06-16 CN CN201610425244.3A patent/CN105952637A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20140161655A1 (en) * | 2011-07-08 | 2014-06-12 | Edward L. Simonds | Pump |
| DE102012209152A1 (en) * | 2012-05-31 | 2013-12-05 | Robert Bosch Gmbh | Gear machine e.g. pump is formed with recess with two portions extended in different directions, such that pressurized fluid pass into recess in direct contact with bearing sleeve and tooth space of associated gearwheel |
| CN203051104U (en) * | 2013-02-04 | 2013-07-10 | 初月涛 | High-pressure gear oil pump |
| CN203420884U (en) * | 2013-06-17 | 2014-02-05 | 合肥市穗意液压技术有限公司 | Floating type side plate on gear oil pump |
| CN105649976A (en) * | 2015-12-29 | 2016-06-08 | 西安航天动力研究所 | Micro different-tooth-number high-speed magnetic-driving electric gear pump |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989011A (en) * | 2017-05-11 | 2017-07-28 | 常州大学 | External toothing button pump |
| CN113348303A (en) * | 2019-03-08 | 2021-09-03 | 株式会社岛津制作所 | Helical gear pump or motor |
| JPWO2020183546A1 (en) * | 2019-03-08 | 2021-11-04 | 株式会社島津製作所 | Helical gear pump or motor |
| US20220112894A1 (en) * | 2019-03-08 | 2022-04-14 | Shimadzu Corporation | Helical gear pump and helical gear motor |
| JP7124954B2 (en) | 2019-03-08 | 2022-08-24 | 株式会社島津製作所 | helical gear pump or motor |
| CN113348303B (en) * | 2019-03-08 | 2023-02-21 | 株式会社岛津制作所 | Helical gear pump or motor |
| US11773845B2 (en) | 2019-03-08 | 2023-10-03 | Shimadzu Corporation | Helical gear pump and helical gear motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |