CN201599187U - External gear pump - Google Patents
External gear pump Download PDFInfo
- Publication number
- CN201599187U CN201599187U CN2010201040520U CN201020104052U CN201599187U CN 201599187 U CN201599187 U CN 201599187U CN 2010201040520 U CN2010201040520 U CN 2010201040520U CN 201020104052 U CN201020104052 U CN 201020104052U CN 201599187 U CN201599187 U CN 201599187U
- Authority
- CN
- China
- Prior art keywords
- pump
- valve plate
- gear
- cavity
- thrust plate
- 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
Abstract
The utility model relates to an external gear pump, which comprises a pump body, a front cover and a rear cover, wherein the front cover and the rear cover are in sealing assembly with the pump body via a seal ring, a cavity is arranged on the inner side of the pump body, a main gear and an auxiliary gear are mounted in the cavity, a valve plate is arranged at connecting ends of the main gear and the auxiliary gear, and an oil guide groove with a self-lubricating function is arranged on the valve plate and leads to an axle hole of the valve plate. Besides, an oil storage groove is arranged at the center of the valve plate. When the pump rotates, high pressure in a pressure oil cavity of the gear pump can enter the axle hole along the oil guide groove because of the oil guide groove arranged on the valve plate, the periphery of a shaft can be lubricated uniformly when the shaft rotates, and pressure oil enters the axle hole so as to reduce radial force to the inner side of the pump body and the valve plate. Compared with the prior art, power loss is reduced by 30% due to sufficient lubrication, working efficiency of the pump can be increased by 17%, and service life of the whole external-gearing gear pump can be prolonged about 32%.
Description
Technical field
The utility model relates to the liquid pressure pump technical field that gear engagement produces, and specifically, relates to the external gear pump of oil pressure.
Background technique
Gear pump makes liquid between gear produce the liquid oil hydraulic pump of mutual high pressure by two gear meshing.General gear pump mainly comprises the pump housing, protecgulum, bonnet, master gear, pinion, thrust plate, and cavity, master gear and pinion are installed in the cavity of the pump housing.At master gear and pinion two ends thrust plate is installed, master gear constantly rotates relative to oil distribution casing with pinion, because oil distribution casing cooperates closely with the rotating shaft of master gear and pinion, and lack lubricated or lubricated not smooth, when master gear and pinion rotate for a long time, be easy to cause the rotating shaft of master gear and pinion and the wearing and tearing of thrust plate, cause gear pump shorter working life.
The model utility content
At the problem that above-mentioned technology exists, the purpose of this utility model is to provide the external gear pump of better self oiling effect.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
External gear pump, it comprises the pump housing, protecgulum and bonnet, protecgulum and bonnet are installed by seal ring and pump housing sealing, pump housing inboard is provided with cavity, master gear and pinion are installed in the cavity, company's end at master gear and pinion is provided with thrust plate, is provided with the oil guide slot from the profit effect on thrust plate, and oil guide slot is led to the axis hole of thrust plate.
Described thrust plate center is provided with oil storage tank.
Described guiding gutter is barrel shape passage or circular groove milling.
The beneficial effects of the utility model are as follows: adopt this structure external gear pump, pump is in operation process, owing on thrust plate, be provided with oil guide slot, high pressure in the gear pump pumping cavity can be entered in the axis hole along oil guide slot, the all sides of full and uniform lubricated axle by the rotation of axle, in addition, pressure oil enters axis hole, can reduce the radial force of pump housing inboard and thrust plate.Compared with prior art, since fully lubricated, make kinetic equation loss reduce by 30%, the working efficiency of pump can promote more than 17%, and can prolong about 32% the working life of its whole external gear pump.
Description of drawings
Fig. 1 plan view of the present utility model;
Fig. 2 right elevation of the present utility model;
Fig. 3 left view of the present utility model;
Fig. 4 is the cutaway view Amplified image of the A-A direction of Fig. 3;
Fig. 5 is the structural drawing of thrust plate of the present utility model
Fig. 6 is another embodiment's of a thrust plate of the present utility model structural drawing
Embodiment
Below in conjunction with embodiment the utility model is described in further detail.
Shown in Fig. 1-4, the external gear pump that the utility model provides, it comprises the pump housing 1, protecgulum 2 and bonnet 3, protecgulum 2 and bonnet 3 are installed by seal ring 4 and the pump housing 1 sealing, see shown in Figure 4, protecgulum 2 and bonnet 3 and the pump housing 3 diameters are provided with the seal ring 4 of twice heart, can effectively prevent pump housing inner high voltage oil seepage.The pump housing 1 inboard is provided with cavity, and master gear 5 and pinion 6 are installed in the cavity, and the main shaft 7 on the master gear 5 passes protecgulum 2 and stretches out the pump housing 1 outside, can be connected with power plant by woodruff key 71.Be provided with the seal ring 4 of skeleton shape at main shaft 7 and protecgulum 2 diameters, be provided with C shape snap ring 9 in the seal ring outside.End is provided with thrust plate 8 in the company of master gear 5 and pinion 6, sees shown in Figure 5ly, is provided with the oil guide slot 81 from the profit effect on thrust plate 8, and oil guide slot 81 is led to the axis hole of thrust plate, sees shown in Figure 6ly, and thrust plate 8 central positions also are provided with oil storage tank 82.Guiding gutter 81 shown in Figure 5 is barrel shape passage or circular groove milling.
Adopt this structure external gear pump, pump is in operation process, owing on thrust plate 8, be provided with oil guide slot 81, high pressure in the pumping cavity of pressing in the gear pump body 1 can be entered in the axis hole along oil guide slot 81, the all sides of full and uniform lubricated axle by the rotation of axle, in addition, pressure oil enters axis hole, can reduce the radial force of pump housing inboard and thrust plate.Compared with prior art, since fully lubricated, make kinetic equation loss reduce 30%, pump work efficient can promote more than 17%, and can prolong about 32% the working life of its whole external gear pump.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (3)
1. external gear pump, it comprises the pump housing, protecgulum and bonnet, protecgulum and bonnet are installed by seal ring and pump housing sealing, pump housing inboard is provided with cavity, master gear and pinion are installed in the cavity, company's end at master gear and pinion is provided with thrust plate, and it is characterized in that: be provided with the oil guide slot from the profit effect on thrust plate, oil guide slot is led to the axis hole of thrust plate.
2. external gear pump according to claim 1 is characterized in that: described thrust plate center is provided with oil storage tank.
3. external gear pump according to claim 1 is characterized in that: described guiding gutter is barrel shape passage or circular groove milling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201040520U CN201599187U (en) | 2010-01-26 | 2010-01-26 | External gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201040520U CN201599187U (en) | 2010-01-26 | 2010-01-26 | External gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599187U true CN201599187U (en) | 2010-10-06 |
Family
ID=42810241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201040520U Expired - Fee Related CN201599187U (en) | 2010-01-26 | 2010-01-26 | External gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599187U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767515A (en) * | 2012-08-20 | 2012-11-07 | 东莞市神煜机械有限公司 | Double-row external gear pump |
| CN102767516A (en) * | 2012-08-20 | 2012-11-07 | 东莞市神煜机械有限公司 | Compact structure type gear pump |
| CN103075337A (en) * | 2013-01-30 | 2013-05-01 | 苏州久兴发农业机电有限公司 | Hydraulic oil pump for walking rice transplanter |
| CN103742407A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
| CN107165821A (en) * | 2017-07-18 | 2017-09-15 | 临安东方滑动轴承有限公司 | A kind of gear pump side-plank |
-
2010
- 2010-01-26 CN CN2010201040520U patent/CN201599187U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767515A (en) * | 2012-08-20 | 2012-11-07 | 东莞市神煜机械有限公司 | Double-row external gear pump |
| CN102767516A (en) * | 2012-08-20 | 2012-11-07 | 东莞市神煜机械有限公司 | Compact structure type gear pump |
| CN103075337A (en) * | 2013-01-30 | 2013-05-01 | 苏州久兴发农业机电有限公司 | Hydraulic oil pump for walking rice transplanter |
| CN103742407A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Anti-loosening gear pump |
| CN107165821A (en) * | 2017-07-18 | 2017-09-15 | 临安东方滑动轴承有限公司 | A kind of gear pump side-plank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201599187U (en) | External gear pump | |
| CN101832393B (en) | Vertical shaft centrifugal seal system | |
| CN202392418U (en) | Rotor type short shaft sleeve oil pump provided with circulating lubrication oil groove | |
| CN202756238U (en) | Energy-saving type vane pump with overflow valve | |
| CN201650725U (en) | Gear pump | |
| CN202521203U (en) | Oil pump and diesel engine with oil pump | |
| CN203285640U (en) | Auxiliary pump type plunger pump with flow distributed by valve | |
| CN204851658U (en) | Submersible sewage pump | |
| CN202220633U (en) | Gear transmission rotor oil pump connected with an end cover of an engine | |
| CN205001110U (en) | Be applied to nothing wearing and tearing seal assembly of hydraulic turbine | |
| CN204941925U (en) | High-pressure gear water pump | |
| CN112709661A (en) | Top cover main shaft sealing water leakage inhibiting device of vertical shaft mixed flow type water turbine | |
| CN207813972U (en) | Oil pump integrated submerged pump | |
| CN202266491U (en) | Self-priming type water pump and water seal thereof | |
| CN205190336U (en) | Wear -resisting pump cover | |
| CN203822649U (en) | Vertical sewage pump | |
| CN202597120U (en) | Gear type pneumatic submersible pump convenient to install and maintain | |
| CN202228346U (en) | High-viscosity fluid transmission pump | |
| CN204738970U (en) | Vane pump with corrosion resistant wear resistance | |
| CN202628215U (en) | Oil pump and diesel with same | |
| CN202431570U (en) | Space guide blade type long shaft pump depressurizing structure | |
| CN203297163U (en) | Special centrifugal pump for mine | |
| CN201650580U (en) | Vane type pressure swinging motor | |
| CN214660586U (en) | Top cover main shaft sealing water leakage inhibiting device of vertical shaft mixed flow type water turbine | |
| CN209245208U (en) | A kind of Novel high-pressure pump forcedlubricating system |
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: 20101006 Termination date: 20130126 |