CN211777635U - Structure capable of realizing axial oil outlet of tail part of lubricating oil pump - Google Patents
Structure capable of realizing axial oil outlet of tail part of lubricating oil pump Download PDFInfo
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- CN211777635U CN211777635U CN201921896067.2U CN201921896067U CN211777635U CN 211777635 U CN211777635 U CN 211777635U CN 201921896067 U CN201921896067 U CN 201921896067U CN 211777635 U CN211777635 U CN 211777635U
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Abstract
The utility model belongs to lubricating oil pump design field. Relates to a structure capable of realizing axial oil outlet at the tail part of a lubricating oil pump, which comprises a pump shaft assembly (1), a shell assembly (2), a filter screen assembly (3), a speed reducer oil return pump (4), a B cavity oil return pump (5), a C cavity oil return pump (6), an A cavity oil return pump (7), a booster pump (8), a ten-stage partition plate assembly (9), a pump cover (10) and the like. Booster pump (8) are located the tail end of lubricating oil pump, adopt pump tail axial oil outlet structure, set up booster pump (5) export in pump cover (11) center department, through to ten grades of baffle subassemblies (9), pump cover (10) structural adjustment, thereby realize the function that lubricating oil pump tail axle tail axial goes out oil, realize the integration of structure and function, make the product structure compacter, this kind of lubricating oil pump compact structure, the function integrated level is high, light in weight, the installation space at the engine has been saved, the overall arrangement of aeroengine and the pipeline arrangement of lubricating oil system of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of the design of cycloid pump, concretely relates to can realize structure that lubricating oil pump afterbody axial goes out oil.
Background
The lubricating oil pump is used as an important component of an aircraft engine lubricating oil system and is mainly used for conveying and recovering lubricating oil of engine bearings and transmission gear parts. As the cycloid pump has the characteristics of compact structure, small volume, light weight, good filling property, small pressure pulsation and the like, the cycloid pump is widely applied to aeroengines in China and developed countries in Europe and America at present. The development trend of advanced aeroengines in the world is to reduce the volume and weight and to make the structure more compact under the condition of meeting high rotating speed and heavy load. The traditional cycloid pump generally adopts a radial oil outlet mode, an inlet oil port is provided with a special flow passage and a joint, a pump cover plays a role in axially fixing internal parts of the pump, and if a bearing in the pump is lubricated by adopting pressurizing-level lubricating oil, other structures need to be additionally arranged, so that the volume and weight of the pump are increased, the occupied space is also increased, and the structural function integration level is low.
Disclosure of Invention
The utility model aims at: the utility model discloses the purpose is the integration of cycloid pump implementation structure and function for the product structure is compacter, and this kind of cycloid pump compact structure, function integrated level are high, light in weight, have saved the installation space at the engine, the overall arrangement of the aeroengine of being convenient for and the pipeline arrangement of lubricating oil system.
For solving the technical problem, the technical proposal of the utility model is that: a structure capable of realizing axial oil outlet at the tail part of a lubricating oil pump comprises a pump shaft assembly 1, a shell assembly 2, a filter screen assembly 3, a speed reducer oil return pump 4, a cavity B oil return pump 5, a cavity C oil return pump 6, a cavity A oil return pump 7, a booster pump 8, a ten-stage baffle plate assembly 9 and a pump cover 10, wherein the speed reducer oil return pump 4, the cavity B oil return pump 5, the cavity C oil return pump 6, the cavity A oil return pump 7 and the booster pump 8 are sequentially connected in series and integrated in the shell assembly 2, the pump shaft assembly 1 is positioned at the center of the shell assembly 2, the pump shaft assembly 1 drives the speed reducer oil return pump 4, the cavity B oil return pump 5, the cavity C oil return pump 6, the cavity A oil return pump 7 and inner and outer rotors of the booster pump 8 to be meshed for transmission through a flat key, an oil outlet cavity of the ten-stage baffle plate assembly 9 is axially communicated with an outlet of the booster pump 8, the pump cover 10 is, finally, most of the oil flows out from the center of the pump cover 10, and the remaining oil flows into the center hole of the pump shaft assembly 1 through the ten-stage diaphragm assembly 9.
An outlet pipe joint connected with the outside is designed in the center of the pump cover 10, and the lubricating oil flows out through the outlet pipe joint. The booster pump is located at the tail end of the lubricating oil pump. The outlet of the booster pump 8 adopts a pump tail axial oil outlet structure. The booster pump 8 is composed of three stages of inner and outer rotors. The lubricating oil pump is a cycloid pump. An axial through hole is formed in the center of the ten-stage partition plate assembly 9, lubricating oil flows into the central hole of the pump shaft assembly 1 from the axial through hole of the ten-stage partition plate assembly 9, and the lubricating oil lubricates 4 bearings of the lubricating oil pump through 8 radial through holes.
The technical effects of the utility model are that: through the design to ten grades of baffle subassemblies and adjust pump cover structure, make the pump cover have the function of axial fastening and booster stage export concurrently to realize the function that lubricating oil pump booster stage pump tail axial is oily, and combine this structure, utilize booster pump lubricating oil lubricated pump inner bearing. The cycloidal pump has the advantages that the high integration of the structure and the function of the whole pump is realized, the structure of the product is more compact, the structure of the cycloidal pump is compact, the function integration level is high, the weight is light, the installation space of the engine is saved, and the overall layout of the aircraft engine and the pipeline arrangement of a lubricating oil system are facilitated.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a pump cover of a booster stage of a gerotor pump of the present invention;
FIG. 4 is a ten stage diaphragm assembly of the present invention;
FIG. 5 is a flow diagram of the bearing lubricating oil of the present invention.
The device comprises a pump shaft assembly 1, a shell assembly 2, a filter screen assembly 3, a speed reducer oil return pump 4, a cavity B oil return pump 5, a cavity C oil return pump 6, a cavity A oil return pump 7, a booster pump 8, a partition plate assembly 9, a ten-level partition plate assembly 10 and a pump cover.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
fig. 1 shows a schematic perspective view of a gerotor pump of the present invention, which can realize axial oil discharge at the tail of the lube pump; as shown in figure 2, the utility model relates to a structure section view of a cycloid pump capable of realizing axial oil outlet at the tail part of a lubricating oil pump, which comprises a pump shaft component 1, a reducer oil return pump 2, a C cavity oil return pump 3, a pressure regulating valve 4, a booster pump 5, an A cavity oil return pump 6, a B cavity oil return pump 7, a filter screen component 8, a mooring screw 9, a sealing pad plate 10, a pump cover 11, a nine-stage baffle component 12, a shell component 13 and the like, and is characterized in that the outlet of the booster pump 5 is arranged at the center of the pump cover 11, the outlet pipe joint connected with the outside is designed at the center of the pump cover, the pump cover 11 is fastened to the shell component 13 through 4 xM 4, the axial oil outlet of the booster pump is realized through the reasonable design of the oil outlet cavity of the nine-stage baffle component 12, a phi 1 through hole is designed at the center of the nine-stage baffle component 12, the lubricating oil of the booster pump flows through a central phi 5 inner hole of the pump shaft assembly 1 through the phi 1 through hole, 8 phi 1 through holes are radially arranged at the bearing part of the pump shaft at the position of 4, and the shaft sleeve at the position of 4 of the pump is lubricated under the action of centrifugal force along with the rotation of the pump shaft.
Fig. 3, 4 and 5 show a structure of the gerotor pump of the present invention, which can realize axial oil discharge at the tail of the lube pump.
The booster pump is characterized in that an outlet of the booster pump is arranged at the center of the pump cover, an outlet pipe joint connected with the outside is designed at the center of the pump cover, the pump cover is fastened to the shell assembly through 4 xM 4, the axial oil outlet of the booster pump is realized through the reasonable design of an oil outlet cavity of the nine-stage partition plate assembly, a phi 1 through hole is designed at the center of the nine-stage partition plate assembly, lubricating oil of the booster pump flows through a phi 5 inner hole in the center of the pump shaft assembly through the phi 1 through hole, the pump shaft is radially provided with 8 phi 1 through holes at 4 bearings, and the 4 bearings of the pump are lubricated under the action of centrifugal.
Claims (7)
1. A structure capable of realizing axial oil outlet at the tail part of a lubricating oil pump is characterized by comprising a pump shaft assembly (1), a shell assembly (2), a filter screen assembly (3), a speed reducer oil return pump (4), a cavity B oil return pump (5), a cavity C oil return pump (6), a cavity A oil return pump (7), a booster pump (8), a ten-stage partition plate assembly (9) and a pump cover (10), wherein the speed reducer oil return pump (4), the cavity B oil return pump (5), the cavity C oil return pump (6), the cavity A oil return pump (7) and the booster pump (8) are sequentially connected in series and integrated in the shell assembly (2), the pump shaft assembly (1) is positioned at the center of the shell assembly (2), the pump shaft assembly (1) drives inner and outer rotors of the speed reducer oil return pump (4), the cavity B oil return pump (5), the cavity C oil return pump (6), the cavity A oil return pump (7) and the booster, an oil outlet cavity of the ten-stage partition plate assembly (9) is axially communicated with an outlet of the booster pump (8), the pump cover (10) is connected with a joint of the end face of the ten-stage partition plate assembly (9) in a matching manner, lubricating oil flows through an oil outlet cavity of the ten-stage partition plate assembly (9), finally most of the lubricating oil flows out of the center of the pump cover (10), and the rest of the lubricating oil flows into a central hole of the pump shaft assembly (1) through the ten-stage partition plate assembly (9).
2. The arrangement according to claim 1, characterized in that the pump cover (10) is designed with an outlet connection in the central position for connection to the environment, through which outlet connection the oil flows out.
3. The structure of claim 1, wherein the booster pump is located at the aft end of the lube pump.
4. The structure as claimed in claim 1, characterized in that the outlet of the booster pump (8) adopts a pump tail axial oil outlet structure.
5. An arrangement according to claim 1, characterized in that the booster pump (8) consists of three stages of inner and outer rotors.
6. The structure of claim 1, wherein the lube pump is a gerotor pump.
7. The structure according to claim 1, wherein an axial through hole is provided at the center of the ten-stage diaphragm assembly (9), and the oil flows from the axial through hole of the ten-stage diaphragm assembly (9) into the center hole of the pump shaft assembly (1), and the oil lubricates 4 bearings of the oil pump through 8 radial through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921896067.2U CN211777635U (en) | 2019-11-05 | 2019-11-05 | Structure capable of realizing axial oil outlet of tail part of lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921896067.2U CN211777635U (en) | 2019-11-05 | 2019-11-05 | Structure capable of realizing axial oil outlet of tail part of lubricating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777635U true CN211777635U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921896067.2U Active CN211777635U (en) | 2019-11-05 | 2019-11-05 | Structure capable of realizing axial oil outlet of tail part of lubricating oil pump |
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| CN (1) | CN211777635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780414A (en) * | 2020-12-31 | 2021-05-11 | 浙江环誉泵业科技有限公司 | Low-pressure pulsation multi-connection lubricating oil pump set easy to maintain |
-
2019
- 2019-11-05 CN CN201921896067.2U patent/CN211777635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780414A (en) * | 2020-12-31 | 2021-05-11 | 浙江环誉泵业科技有限公司 | Low-pressure pulsation multi-connection lubricating oil pump set easy to maintain |
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