CN210291374U - Light oil pump with auxiliary pump - Google Patents
Light oil pump with auxiliary pump Download PDFInfo
- Publication number
- CN210291374U CN210291374U CN201921311798.6U CN201921311798U CN210291374U CN 210291374 U CN210291374 U CN 210291374U CN 201921311798 U CN201921311798 U CN 201921311798U CN 210291374 U CN210291374 U CN 210291374U
- Authority
- CN
- China
- Prior art keywords
- pump
- oil
- driving shaft
- auxiliary pump
- auxiliary
- 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.)
- Withdrawn - After Issue
Links
- 239000003921 oil Substances 0.000 claims abstract description 70
- 239000010705 motor oil Substances 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model provides a take light oil pump of secondary pump, including the main pump body, the interior outer rotor of main pump, the vice pump body, the interior outer rotor of secondary pump, driving shaft, pump cover, bolt, drive gear is installed to the one end of driving shaft, the other end of driving shaft runs through the main pump body, the interior outer rotor of main pump, the vice pump body, the interior outer rotor of secondary pump in proper order, main pump inner rotor and vice pump inner rotor fixed mounting are on the driving shaft, the vice pump body passes through the bolt and installs on the main pump body, the pump cover passes through the bolt and installs on the vice pump body, is equipped with oil inlet and oil-out on the main pump body, only is equipped with the; the inner side surface of the pump cover is provided with a round blind hole, a half-moon-shaped oil inlet groove and an oil outlet groove, the blind hole corresponds to the end part of the driving shaft, the bottom of the blind hole is communicated with the bottom of the oil outlet groove, and high-pressure oil in the auxiliary pump flows back to the engine oil bottom case through the oil outlet groove of the pump cover, the blind hole and the central through hole of the driving shaft in sequence.
Description
Technical Field
The utility model relates to an engine lubrication system part, in particular to take light oil pump of auxiliary pump.
Background
The oil pump plays an essential role as a lubricant supply unit of an engine in order to continue reliable operation of the engine. In practical applications, the oil level of the oil pan of an engine is abnormal due to the inclination of the whole mechanical equipment, for example, the oil level of the oil pan of the engine applied to aviation equipment and ships is abnormal due to the inclination of a machine body or a ship body, in this case, the oil pump cannot normally suck lubricating oil from the oil pan, so that dry friction of the engine is caused, and if the engine is in a light condition, the engine is in a protective stop, and if the engine is in a heavy condition, accidents such as cylinder pulling, tile burning and the like occur. In order to solve the technical problem, in the prior art, an auxiliary pump is added to pump oil into an oil pan in time, and therefore, an oil inlet and an oil outlet need to be arranged on an auxiliary pump body, and corresponding pipelines are arranged to be communicated with the oil inlet and the oil outlet.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a take light oil pump of auxiliary pump, the structure of this oil pump is compacter.
In order to solve the technical problem, the technical scheme of the utility model is that: a light oil pump with an auxiliary pump comprises a main pump body, a main pump inner rotor, a main pump outer rotor, an auxiliary pump body, an auxiliary pump inner rotor, an auxiliary pump outer rotor, a driving shaft, a pump cover and a bolt, wherein a transmission gear is installed at one end of the driving shaft, the other end of the driving shaft sequentially penetrates through the main pump body, the main pump inner rotor, the main pump outer rotor, the auxiliary pump body, the auxiliary pump inner rotor and the auxiliary pump outer rotor, the main pump inner rotor and the auxiliary pump inner rotor are fixedly installed on the driving shaft, the auxiliary pump body is installed on the main pump body through the bolt, the pump cover is installed on the auxiliary pump body through the bolt, an oil inlet and an oil outlet are formed in the main pump body, only an; the high-pressure oil pump is characterized in that a round blind hole, a half-moon-shaped oil inlet groove and an oil outlet groove are formed in the inner side face of the pump cover, the blind hole corresponds to the end portion of the driving shaft, the bottom of the blind hole is communicated with the bottom of the oil outlet groove, and high-pressure oil in the auxiliary pump flows back to an engine oil pan through the oil outlet groove of the pump cover, the blind hole and a central through hole of the driving shaft in sequence.
Preferably, the blind hole is a stepped hole.
Furthermore, the main pump inner rotor, the main pump outer rotor, the auxiliary pump inner rotor and the auxiliary pump outer rotor are all provided with axial lightening holes.
Furthermore, the transmission gear is provided with an axial lightening hole.
The utility model has the advantages that: in the technical scheme, the driving shaft is designed into a hollow shaft, the pump cover is provided with the blind hole corresponding to the end part of the driving shaft, and the blind hole is communicated with the oil outlet groove, so that high-pressure oil in the oil outlet groove flows back to the oil sump through the central through hole of the driving shaft, an oil outlet does not need to be arranged on the auxiliary pump body, a pipeline connected with the oil outlet does not need to be additionally arranged, the structure of the whole engine oil pump is more compact and ingenious, and the engine oil pump is lighter. In a further technical scheme, lightening holes are formed in some parts, so that the weight of the oil pump can be further lightened.
Drawings
Fig. 1 is a schematic view of an overall structure of an oil pump in an embodiment of the present invention;
fig. 2 is a schematic structural view of a pump cover in an embodiment of the present invention;
the reference signs are:
1-main pump body 2-main pump inner rotor 3-main pump outer rotor
4-auxiliary pump body 5-auxiliary pump internal rotor 6-auxiliary pump internal rotor
7-driving shaft 8-pump cover 9-transmission gear
8a, a blind hole 8b, an oil inlet groove 8c and an oil outlet groove.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
As shown in fig. 1 to 2, a light oil pump with an auxiliary pump comprises a main pump body 1, a main pump inner rotor 2, a main pump outer rotor 3, an auxiliary pump body 4, an auxiliary pump inner rotor 5, an auxiliary pump outer rotor 6, a driving shaft 7, a pump cover 8 and bolts, wherein a transmission gear 9 is installed at one end of the driving shaft 7, the other end of the driving shaft 7 sequentially penetrates through the main pump body 1, the main pump inner rotor 2, the main pump outer rotor 3, the auxiliary pump body 4, the auxiliary pump inner rotor 5 and the auxiliary pump outer rotor 6, the main pump inner rotor 2 and the auxiliary pump inner rotor 5 are fixedly installed on the driving shaft 7, the auxiliary pump body 4 is installed on the main pump body 1 through bolts, the auxiliary pump body 4 is installed on the auxiliary pump body 4 through bolts, the main pump cover 1 is provided with an oil inlet and an oil; the inner side face of the pump cover 8 is provided with a round blind hole 8a, a half-moon-shaped oil inlet groove 8b and an oil outlet groove 8c, the blind hole 8a is a stepped hole, the blind hole 8a corresponds to the end portion of the driving shaft 7, the bottom of the blind hole 8a is communicated with the bottom of the oil outlet groove 8c, and high-pressure oil in the auxiliary pump sequentially flows back to an engine oil pan through the oil outlet groove 8c of the pump cover 8, the blind hole 8a and a central through hole of the driving shaft 7.
In order to further reduce the weight of the oil pump, axial lightening holes are formed in the main pump inner rotor 2, the main pump outer rotor 3, the auxiliary pump inner rotor 5, the auxiliary pump outer rotor 6 and the transmission gear 9.
In the technical scheme, the driving shaft 7 is designed into a hollow shaft, the pump cover 8 is provided with the blind hole 8a corresponding to the end part of the driving shaft 7, and the blind hole 8a is communicated with the oil outlet groove 8c, so that high-pressure oil in the oil outlet groove 8c flows back to the oil pan through the central through hole of the driving shaft 7, an oil outlet does not need to be arranged on the auxiliary pump body 4, and a pipeline connected with the oil outlet does not need to be additionally arranged, so that the whole engine oil pump is more compact and ingenious in structure, and the engine oil pump is lighter.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.
Claims (4)
1. A light oil pump with an auxiliary pump comprises a main pump body (1), a main pump inner rotor (2), a main pump outer rotor (3), an auxiliary pump body (4), an auxiliary pump inner rotor (5), an auxiliary pump outer rotor (6), a driving shaft (7), a pump cover (8) and bolts, wherein a transmission gear (9) is installed at one end of the driving shaft (7), the other end of the driving shaft (7) sequentially penetrates through the main pump body (1), the main pump inner rotor (2), the main pump outer rotor (3), the auxiliary pump body (4), the auxiliary pump inner rotor (5) and the auxiliary pump outer rotor (6), the main pump body (2) and the auxiliary pump inner rotor (5) are fixedly installed on the driving shaft (7), the auxiliary pump body (4) is installed on the main pump body (1) through bolts, the pump cover (8) is installed on the auxiliary pump body (4) through bolts, and an oil inlet and, the method is characterized in that: the auxiliary pump body (4) is only provided with an oil inlet but not an oil outlet, and the driving shaft (7) is a hollow shaft; the engine oil sump is characterized in that a round blind hole (8 a) is formed in the inner side face of the pump cover (8), a half-moon-shaped oil inlet groove (8 b) and an oil outlet groove (8 c) are formed in the inner side face of the pump cover, the blind hole (8 a) corresponds to the end portion of the driving shaft (7), the bottom of the blind hole (8 a) is communicated with the bottom of the oil outlet groove (8 c), and high-pressure oil in the auxiliary pump sequentially flows back to the engine oil sump through a central through hole of the oil outlet groove (8 c), the blind hole (8 a) and the driving shaft (7) of the.
2. The light-weight oil pump with the auxiliary pump according to claim 1, characterized in that: the blind hole (8 a) is a stepped hole.
3. The light-weight oil pump with the auxiliary pump according to claim 1 or 2, characterized in that: the main pump inner rotor (2), the main pump outer rotor (3), the auxiliary pump inner rotor (5) and the auxiliary pump outer rotor (6) are all provided with axial lightening holes.
4. The light-weight oil pump with the auxiliary pump according to claim 1 or 2, characterized in that: and the transmission gear (9) is provided with an axial lightening hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311798.6U CN210291374U (en) | 2019-08-14 | 2019-08-14 | Light oil pump with auxiliary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311798.6U CN210291374U (en) | 2019-08-14 | 2019-08-14 | Light oil pump with auxiliary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210291374U true CN210291374U (en) | 2020-04-10 |
Family
ID=70061481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921311798.6U Withdrawn - After Issue CN210291374U (en) | 2019-08-14 | 2019-08-14 | Light oil pump with auxiliary pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210291374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360437A (en) * | 2019-08-14 | 2019-10-22 | 湖南机油泵股份有限公司 | A kind of lightweight lubricating oil pump with auxiliary pump |
-
2019
- 2019-08-14 CN CN201921311798.6U patent/CN210291374U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360437A (en) * | 2019-08-14 | 2019-10-22 | 湖南机油泵股份有限公司 | A kind of lightweight lubricating oil pump with auxiliary pump |
| CN110360437B (en) * | 2019-08-14 | 2024-01-23 | 湖南机油泵股份有限公司 | Light engine oil pump with auxiliary pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200410 Effective date of abandoning: 20240123 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200410 Effective date of abandoning: 20240123 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |