CN202091189U - Bidirectional external gear pump - Google Patents
Bidirectional external gear pump Download PDFInfo
- Publication number
- CN202091189U CN202091189U CN2011201665220U CN201120166522U CN202091189U CN 202091189 U CN202091189 U CN 202091189U CN 2011201665220 U CN2011201665220 U CN 2011201665220U CN 201120166522 U CN201120166522 U CN 201120166522U CN 202091189 U CN202091189 U CN 202091189U
- Authority
- CN
- China
- Prior art keywords
- pump
- nut
- spring
- ring
- driving gear
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model relates to a bidirectional external gear pump, which is characterized in that a front cover is arranged at the front end of a pump body, and a rear cover is arranged at the rear end of the pump body. An elastic retainer ring for a hole is arranged at the position of an inner hole of the front cover, a framework oil seal is arranged at the back of the elastic retainer ring for the hole, and a seal ring and a seal retainer ring are further arranged on the rear end face of the front cover. A shaft sleeve is arranged inside the pump body, a driving gear is arranged in the middle of the shaft sleeve, a driven gear is arranged under the driving gear, and the driving gear and the driven gear are meshed with each other. A gasket is further arranged on the upper side of the outer end of the rear cover, a nut is arranged outside the gasket, a hexagon bolt is arranged inside the nut, and the nut and the hexagon bolt are screwed together. One end of a spring is connected with a steel ball, the other end of the spring is connected with a spiral plug, the steel ball is connected with the spiral plug through the spring, and an O-shaped seal ring is further arranged on the inner side of the spiral plug. Due to the fact that forward direction and reverse direction of the pump are not needed to be distinguished, and a worker who installs the bidirectional external gear pump also does not need to distinguish the forward and reverse, thereby bringing convenience for the worker to assemble. In addition, the bidirectional external gear pump is bidirectional in running, simple in structure, few in parts, convenient to machine and high in cost performance.
Description
Technical field
The utility model relates to construction machinery industry, a kind of specifically two-way external gear pump, be applied to construction machine, press machine tool, Hydraulic saw for wall (hydraulic concrete saw), coal mine machinery, mining machinery, petroleum machinery, metallurgy, automobile making, injection machine, various hydraulic systems and industry equipment.
Background technique
Ratchet pump in the prior art, the volume of its oil sucting cavity and pumping cavity is unequal, and the volume of oil sucting cavity is greater than pumping cavity, and the inlet port of gear pump also is different size with pressing hydraulic fluid port, and inlet port is greater than pressing hydraulic fluid port.The purpose of doing like this is unobstructed in order to guarantee oil-feed, reduces the pumping cavity volume and can also reduce the active force of hydraulic oil to gear.Certainly will require like this in the processing of gear pump part, to have any different.Equally when mounted, with the inner body loading error of pump, the oil inlet and outlet of pump is obscured easily.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, a kind of two-way external gear pump is provided, the technological scheme that its technical problem that solves the utility model adopts is: structure of the present utility model comprises circlip for hole, outside framework oil seal, protecgulum, seal ring, Sealing shield ring, axle sleeve, the pump housing, driving gear, driven gear, bonnet, packing ring, nut, the outer-hexagonal bolt, rectangular seal, steel ball, spring, " O " shape seal ring, screw plug, it is characterized in that pump housing front end is provided with protecgulum, pump housing rear end is provided with bonnet, protecgulum endoporus place is provided with circlip for hole, the circlip for hole back is provided with outside framework oil seal, on the protecgulum ear end face, also be provided with seal ring and Sealing shield ring, axle sleeve is set in the pump housing, driving gear is set in the middle of the axle sleeve, driven gear is set below the driving gear, driving gear and driven gear are meshing with each other, the outer end upside of bonnet also is provided with packing ring, the packing ring outside is provided with nut, the outer-hexagonal bolt is set in the nut, nut and outer-hexagonal bolt are screwed together, spring one end is connected with steel ball, the spring the other end is connected with screw plug, steel ball and screw plug link together by spring, and the screw plug inboard also is provided with " O " shape seal ring.
Working principle and operation instruction: when the motor driven gear pump turned round, hydraulic oil through filter, arrived the oil pump oil sucting cavity from system's fuel tank, by the engagement of gear mesh, by the oil sucting cavity arrival pumping cavity of gear pump, output then.Owing to do not distinguish forward and reverse pump, and filler opening is the same size with oil outlet, during use if need derotation to gear pump, change turning to of gear mesh and get final product derotation to work, like this, the workman also need not be distinguished when mounted, makes things convenient for workman's assembling.
The beneficial effects of the utility model are, the utility model is not owing to distinguish forward and reverse pump, and its filler opening and oil outlet are of a size.Like this, the workman also need not be distinguished when mounted, makes things convenient for workman's assembling.And way traffic, simple in structure, part is few, and is easy to process, the cost performance height.
Description of drawings
Fig. 1: the utility model embodiment assembly cross-sectional view;
Fig. 2: the utility model embodiment cross-sectional view;
Among the figure: circlip for hole 1, outside framework oil seal 2, protecgulum 3, seal ring 4, Sealing shield ring 5, axle sleeve 6, the pump housing 7, driving gear 8, driven gear 9, bonnet 10, packing ring 11, nut 12, outer-hexagonal bolt 13, rectangular seal 14, steel ball 15, spring 16, " O " shape seal ring 17, screw plug 18.
Embodiment
With reference to description of drawings the utility model is done following concrete detailed description; As shown in drawings, structure of the present utility model comprises circlip for hole 1, outside framework oil seal 2, protecgulum 3, seal ring 4, Sealing shield ring 5, axle sleeve 6, the pump housing 7, driving gear 8, driven gear 9, bonnet 10, packing ring 11, nut 12, outer-hexagonal bolt 13, rectangular seal 14, steel ball 15, spring 16, " O " shape seal ring 17, screw plug 18, it is characterized in that the pump housing 7 front ends are provided with protecgulum 3, the pump housing 7 rear ends are provided with bonnet 10, protecgulum 3 endoporus places are provided with circlip for hole 1, circlip for hole 1 back is provided with outside framework oil seal 2, on protecgulum 3 ear end faces, also be provided with seal ring 4 and Sealing shield ring 5, axle sleeve 6 is set in the pump housing 7, driving gear 8 is set in the middle of the axle sleeve 6, driven gear 9 is set below the driving gear 8, driving gear 8 and driven gear 9 are meshing with each other, the outer end upside of bonnet 10 also is provided with packing ring 11, packing ring 11 outsides are provided with nut 12, outer-hexagonal bolt 13 is set in the nut 12, nut 12 is screwed together with outer-hexagonal bolt 13, spring 16 1 ends are connected with steel ball 15, spring 16 the other ends are connected with screw plug 18, steel ball 15 links together by spring 16 with screw plug 18, and screw plug 18 inboards also are provided with " O " shape seal ring 17.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design concept; common engineers and technicians make the technical solution of the utility model in related domain various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (1)
1. two-way external gear pump, comprise circlip for hole (1), outside framework oil seal (2), protecgulum (3), seal ring (4), Sealing shield ring (5), axle sleeve (6), the pump housing (7), driving gear (8), driven gear (9), bonnet (10), packing ring (11), nut (12), outer-hexagonal bolt (13), rectangular seal (14), steel ball (15), spring (16), " O " shape seal ring (17), screw plug (18), it is characterized in that the pump housing (7) front end is provided with protecgulum (3), the pump housing (7) rear end is provided with bonnet (10), protecgulum (3) endoporus place is provided with circlip for hole (1), circlip for hole (1) back is provided with outside framework oil seal (2), on protecgulum (3) ear end face, also be provided with seal ring (4) and Sealing shield ring (5), axle sleeve (6) is set in the pump housing (7), driving gear (8) is set in the middle of the axle sleeve (6), driven gear (9) is set below the driving gear (8), driving gear (8) and driven gear (9) are meshing with each other, the outer end upside of bonnet (10) also is provided with packing ring (11), packing ring (11) outside is provided with nut (12), outer-hexagonal bolt (13) is set in the nut (12), nut (12) is screwed together with outer-hexagonal bolt (13), spring (16) one ends are connected with steel ball (15), spring (16) the other end is connected with screw plug (18), steel ball (15) links together by spring (16) with screw plug (18), and screw plug (18) inboard also is provided with " O " shape seal ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201665220U CN202091189U (en) | 2011-05-24 | 2011-05-24 | Bidirectional external gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201665220U CN202091189U (en) | 2011-05-24 | 2011-05-24 | Bidirectional external gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091189U true CN202091189U (en) | 2011-12-28 |
Family
ID=45366258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201665220U Expired - Fee Related CN202091189U (en) | 2011-05-24 | 2011-05-24 | Bidirectional external gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091189U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705230A (en) * | 2012-05-09 | 2012-10-03 | 苏州百胜动力机器有限公司 | Gear pump |
| CN105298834A (en) * | 2015-11-16 | 2016-02-03 | 王建兴 | External gear pump capable of being used for forward and reverse rotation |
| CN106481546A (en) * | 2015-08-28 | 2017-03-08 | 河南航天液压气动技术有限公司 | A kind of high rotating speed adjustable pressure small gear pump |
| CN107514361A (en) * | 2017-08-25 | 2017-12-26 | 瑞立集团瑞安汽车零部件有限公司 | A kind of New energy electric double rotational directions external gear type oil pump used for air compressor |
-
2011
- 2011-05-24 CN CN2011201665220U patent/CN202091189U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705230A (en) * | 2012-05-09 | 2012-10-03 | 苏州百胜动力机器有限公司 | Gear pump |
| CN102705230B (en) * | 2012-05-09 | 2015-09-02 | 苏州百胜动力机器股份有限公司 | A kind of gear pump |
| CN106481546A (en) * | 2015-08-28 | 2017-03-08 | 河南航天液压气动技术有限公司 | A kind of high rotating speed adjustable pressure small gear pump |
| CN105298834A (en) * | 2015-11-16 | 2016-02-03 | 王建兴 | External gear pump capable of being used for forward and reverse rotation |
| CN107514361A (en) * | 2017-08-25 | 2017-12-26 | 瑞立集团瑞安汽车零部件有限公司 | A kind of New energy electric double rotational directions external gear type oil pump used for air compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202091189U (en) | Bidirectional external gear pump | |
| CN206092388U (en) | Use no sideshake meshed gear's hydraulic gear oil pump | |
| CN204226186U (en) | A kind of gear pump | |
| CN202091185U (en) | Gear pump | |
| CN203892144U (en) | Novel pneumatic barring gear | |
| CN202091196U (en) | Sealing element for gear pump or motor | |
| CN203146783U (en) | Self-filtration type decelerator for lubricating oil cavity for hoister of lorry-mounted crane | |
| CN201739484U (en) | Lubricating system for gearbox of engineering vehicle | |
| CN104747407A (en) | Oil removal compressor with lubrication function | |
| CN203528596U (en) | Automobile hydraulic power steering gear with double-dustproof structure | |
| CN205154879U (en) | Many oil ducts of tractor transmission shaft structure | |
| CN204201026U (en) | A kind of Novel main reducing gear lubrication system architecture | |
| CN203496983U (en) | Emergency steering apparatus of grader | |
| CN205026065U (en) | Latent oily electric screw bar pump reduction gear with oil storage function | |
| CN205047829U (en) | Hydraulic seal structure reaches hydraulic system and machine including it | |
| CN203130489U (en) | Conjoined gear pump | |
| CN204647807U (en) | A kind of rotary pressure difference-powered automatic oil return multi-head pump | |
| CN205823775U (en) | Built-in overflow valve gear diverter | |
| CN203640999U (en) | Shaft-broken triple gear pump | |
| CN105202160A (en) | Mine automobile power take-off (PTO) end cover | |
| CN219035514U (en) | Horizontal double-stage cycloidal pin gear reducer with wire carrying pin gear meshing of direct-coupled motor | |
| CN202991170U (en) | Oil passage integrated machine oil pump | |
| CN202746195U (en) | Gear steering pump with pilot overflow valve | |
| CN203067673U (en) | Coaxial type bevel gear submerged reducer | |
| CN203335170U (en) | Device for attracting iron filings of lubricating oil at power end of fracturing truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20140524 |