CN211397717U - Oil pump and vacuum pump assembly - Google Patents
Oil pump and vacuum pump assembly Download PDFInfo
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- CN211397717U CN211397717U CN201922478424.XU CN201922478424U CN211397717U CN 211397717 U CN211397717 U CN 211397717U CN 201922478424 U CN201922478424 U CN 201922478424U CN 211397717 U CN211397717 U CN 211397717U
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Abstract
The utility model discloses an oil pump and vacuum pump assembly, which comprises an assembly shell arranged on an engine, wherein the assembly shell is rotatably connected with an oil pump shaft and a vacuum pump shaft which are arranged in parallel at intervals, transmission gears which are meshed with each other are arranged on the oil pump shaft and the vacuum pump shaft, one of the transmission gears is meshed with a crankshaft gear of the engine, and a vacuum pump cavity and an oil pump cavity are arranged in the assembly shell; the vacuum pump shaft is connected with a vacuum pump rotor, and an exhaust hole and a vacuum pumping pipe are arranged on the assembly shell; the oil pump shaft is connected with an oil pump rotor, and an oil inlet channel and an oil discharge channel which are respectively communicated with the oil pumping cavity and the oil discharge cavity are arranged on the assembly shell. The utility model discloses be integrated as an organic whole with rotor formula oil pump and vane type vacuum pump, the two passes through gear engagement, only needs a power input can satisfy the functional requirement of oil pump and vacuum pump simultaneously. And compact structure, small volume, and convenient installation and maintenance.
Description
Technical Field
The utility model relates to an oil pump and vacuum pump assembly.
Background
In the field of modern automotive engines, an oil pump and a vacuum pump are two indispensable components. The oil pump is a part which increases the oil to a certain pressure and then forcibly presses and sends the oil to the moving surfaces of various parts of the engine. The oil pump can be divided into two types of gear type and rotor type. A vacuum pump for an engine is a component that can draw air out of a container to obtain a vacuum degree of the container, and is mainly used for brake assist of an automobile. A common vacuum pump is a vane vacuum pump.
Currently, the oil pump and the vacuum pump are generally independent parts, and are respectively installed at different positions of an engine, for example, the oil pump is generally installed in an oil pan or on a front end cover. The vacuum pump is generally installed in generator rear end and camshaft rear end, by generator or the coaxial drive of camshaft, because it installs respectively in the different positions of engine, occupation space is great separately, and all need design respective drive structure, and installation and maintenance are all comparatively inconvenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an oil pump and vacuum pump assembly, this assembly has integrateed an oil pump and a vacuum pump, compact structure, and the integrated level is high, and is small, and it is convenient to maintain.
In order to solve the technical problem, the provided oil pump and vacuum pump assembly comprises an assembly shell installed on an engine, and is characterized in that: the assembly shell is rotatably connected with an engine oil pump shaft and a vacuum pump shaft which are arranged in parallel at intervals, sections of the engine oil pump shaft and the vacuum pump shaft extending out of the assembly shell are provided with transmission gears which are meshed with each other, one of the transmission gears is meshed with a crankshaft gear of an engine, and a vacuum pump chamber and an engine oil pump chamber are arranged in the assembly shell;
the assembly comprises an assembly shell, a vacuum pump rotor, an engine oil inlet pipeline, an exhaust cavity, an exhaust hole and a vacuum pipe, wherein the vacuum pump shaft extends into the vacuum pump cavity and is connected with the vacuum pump rotor;
the oil pump rotor is eccentrically arranged with the oil pump cavity, the oil pump rotor is provided with a plurality of outer raised heads, the wall of the oil pump cavity is provided with an inner groove matched with the outer raised heads, the outer raised heads are always tangent with the inner groove when the outer raised heads rotate along with the oil pump rotor, an oil pumping cavity and an oil discharging cavity are defined between two adjacent outer raised heads and the oil pump cavity, and the assembly shell is provided with an oil inlet channel and an oil discharging channel which are respectively communicated with the oil pumping cavity and the oil discharging cavity.
And a communicating channel is arranged on the assembly shell between the oil inlet channel and the oil discharge channel, and a pressure release valve which enables the oil discharge channel to be communicated with the oil inlet channel when the oil pressure is too high is arranged on the communicating channel.
The pressure relief valve comprises a pressure relief spring connected to the communicating pipeline, the communicating pipeline is connected with a pressure relief valve core in a sliding mode, the middle of the pressure relief valve core is provided with an oil inlet cavity communicated with the oil discharge channel, the side wall of the pressure relief valve core is provided with a pressure relief oil hole communicated with the oil inlet cavity, the pressure relief valve core slides downwards to compress the pressure relief spring, the oil discharge channel is communicated with the oil inlet channel through the oil inlet cavity, the pressure relief oil hole, the pressure relief spring returns when the pressure relief valve core slides upwards, and the inner wall of the communicating pipeline.
The vacuum-pumping pipe is provided with a one-way valve which can only feed gas into the vacuum-pumping cavity.
By adopting the structure, the rotor type oil pump and the vane type vacuum pump are integrated into a whole, and are meshed through the gear, and the functional requirements of the oil pump and the vacuum pump can be met simultaneously only by one power input. The high-low pressure oil duct and the air passage required by the oil pump and the vacuum pump are designed on the shell simultaneously, other pipelines are not required to be connected during installation, the structure is compact, the size is small, and the installation and the maintenance are very convenient. Meanwhile, the parts are integrally produced, the parts are integrally inspected when leaving a factory, the consistency of products can be guaranteed through high-precision metal machining, and the failure rate is reduced.
Drawings
The invention will be further described with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view taken along line A-A of FIG. 1;
FIG. 3 is a rear view of the embodiment of FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 2 in the direction B;
FIG. 5 is a schematic structural diagram of one operating state of the pressure relief valve in the embodiment of FIG. 1;
FIG. 6 is a schematic structural diagram of another operating state of the pressure relief valve in the embodiment of FIG. 1;
fig. 7 is a schematic structural view taken along the line B-B in fig. 3.
Detailed Description
As shown in fig. 1 to 3, the utility model provides an embodiment of oil pump and vacuum pump assembly, it is including installing assembly casing 1 on the engine, it has parallel oil pump axle 2 and the vacuum pump shaft 3 of arranging at an interval to rotate on the assembly casing 1 to be connected with, is equipped with intermeshing's drive gear 4 on the section that oil pump axle 2 and vacuum pump shaft 3 stretch out outside the assembly casing, and the crankshaft gear meshing of one of them drive gear 4 and engine, the concrete structure of its meshing is not shown in the figure, and the skilled in the art knows how to make crankshaft gear and above-mentioned drive gear meshing, and the no longer detailed description is given here, set up vacuum pump cavity and oil pump cavity in the assembly casing 1.
Referring to fig. 1 to 3, with reference to fig. 7, the vacuum pump shaft 2 extends into the vacuum pump chamber and is connected with a vacuum pump rotor 5, the vacuum pump rotor 5 and the vacuum pump chamber are eccentrically arranged, three vacuum pump blades 6 capable of sliding along the vacuum pump rotor are circumferentially distributed on the vacuum pump rotor 5, the side surface of the vacuum pump rotor 5 is attached to the chamber wall of the vacuum pump chamber, an engine oil inlet pipeline 7 communicated with the vacuum pump chamber is arranged in the assembly housing, the end of each vacuum pump blade 6 is attached to the chamber wall of the vacuum pump chamber under the pressure of the entering engine oil, an evacuation chamber 8 and an evacuation chamber 9 are defined between two adjacent vacuum pump blades and the chamber wall of the vacuum pump chamber, and an evacuation hole 10 communicated with the evacuation chamber 9 and an evacuation tube 11 communicated with the evacuation chamber 9 are arranged on the assembly housing; the vacuum-pumping pipe 11 is provided with a one-way valve 12 which can only enter gas into the vacuum-pumping cavity, so that the air can only flow towards the vacuum pump and can not flow reversely, and the vacuum degree of the required vacuum container is ensured.
Referring to fig. 1 to 3, with reference to fig. 4 to 6, the oil pump shaft 2 extends into the oil pump chamber and is connected to an oil pump rotor 13, the oil pump rotor 13 and the oil pump chamber are eccentrically arranged, the oil pump rotor 13 has a plurality of outer protrusions, an inner groove adapted to the outer protrusions is formed in a chamber wall of the oil pump chamber, and the outer protrusions are always tangent to the inner groove when the outer protrusions rotate along with the oil pump rotor, in the drawings, the oil pump rotor 13 is in a four-corner star-shaped structure, and the oil pump chamber is in a five-corner star-shaped structure, so that the tangency can be achieved, an oil pumping chamber 14 and an oil discharging chamber 15 are defined between two adjacent outer protrusions and the oil pump chamber, and the assembly housing 1 is provided with an oil inlet passage 16 and an oil discharging passage 17 which are respectively communicated with the oil pumping chamber and. A communicating channel 18 is arranged on the assembly shell between the oil inlet channel 16 and the oil discharge channel 17, a pressure release valve which enables the oil discharge channel to be communicated with the oil inlet channel when the oil pressure is too high is arranged on the communicating channel 18, in the embodiment, the pressure release valve comprises a pressure release spring 19 connected on the communicating channel, a pressure release valve core 20 is connected on the communicating channel 18 in a sliding way, an oil inlet cavity 21 communicated with the oil discharge channel is arranged in the middle of the pressure release valve core 20, a pressure release oil hole 22 communicated with the oil inlet cavity is arranged on the side wall of the pressure release valve core 20, when the oil pressure is too high, the oil pressure pushes the pressure release valve core 20 to enable the pressure release valve core 20 to slide downwards, when the pressure release valve core 20 slides downwards and compresses the pressure release spring 19, the oil discharge channel 18 is communicated with the oil inlet channel 16 through the oil inlet cavity and the pressure release oil hole to, the inner wall of the communicating pipeline 18 seals the pressure relief oil hole 21, and the pressure of the engine oil is ensured to be stabilized within the design range.
The utility model discloses do not receive the restriction of above-mentioned embodiment, at this technical field personnel, based on the utility model discloses the simple replacement of the equivalent change of concrete structure and method step is all in the protection scope of the utility model.
Claims (5)
1. The utility model provides an oil pump and vacuum pump assembly, is including installing the assembly casing on the engine which characterized in that: the assembly shell is rotatably connected with an engine oil pump shaft and a vacuum pump shaft which are arranged in parallel at intervals, sections of the engine oil pump shaft and the vacuum pump shaft extending out of the assembly shell are provided with transmission gears which are meshed with each other, one of the transmission gears is meshed with a crankshaft gear of an engine, and a vacuum pump chamber and an engine oil pump chamber are arranged in the assembly shell;
the assembly comprises an assembly shell, a vacuum pump rotor, an engine oil inlet pipeline, an exhaust cavity, an exhaust hole and a vacuum pipe, wherein the vacuum pump shaft extends into the vacuum pump cavity and is connected with the vacuum pump rotor;
the oil pump rotor is eccentrically arranged with the oil pump cavity, the oil pump rotor is provided with a plurality of outer raised heads, the wall of the oil pump cavity is provided with an inner groove matched with the outer raised heads, the outer raised heads are always tangent with the inner groove when the outer raised heads rotate along with the oil pump rotor, an oil pumping cavity and an oil discharging cavity are defined between two adjacent outer raised heads and the oil pump cavity, and the assembly shell is provided with an oil inlet channel and an oil discharging channel which are respectively communicated with the oil pumping cavity and the oil discharging cavity.
2. The oil pump and vacuum pump assembly of claim 1, wherein: and a communicating channel is arranged on the assembly shell between the oil inlet channel and the oil discharge channel, and a pressure release valve which enables the oil discharge channel to be communicated with the oil inlet channel when the oil pressure is too high is arranged on the communicating channel.
3. The oil pump and vacuum pump assembly of claim 2, wherein: the pressure relief valve comprises a pressure relief spring connected to the communicating pipeline, the communicating pipeline is connected with a pressure relief valve core in a sliding mode, the middle of the pressure relief valve core is provided with an oil inlet cavity communicated with the oil discharge channel, the side wall of the pressure relief valve core is provided with a pressure relief oil hole communicated with the oil inlet cavity, the pressure relief valve core slides downwards to compress the pressure relief spring, the oil discharge channel is communicated with the oil inlet channel through the oil inlet cavity, the pressure relief oil hole, the pressure relief spring returns when the pressure relief valve core slides upwards, and the inner wall of the communicating pipeline.
4. An oil pump and vacuum pump assembly according to any one of claims 1-3, wherein: the vacuum-pumping pipe is provided with a one-way valve which can only feed gas into the vacuum-pumping cavity.
5. An oil pump and vacuum pump assembly according to any one of claims 1-3, wherein: the engine oil inlet pipeline is communicated with a main oil gallery of the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478424.XU CN211397717U (en) | 2019-12-31 | 2019-12-31 | Oil pump and vacuum pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922478424.XU CN211397717U (en) | 2019-12-31 | 2019-12-31 | Oil pump and vacuum pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397717U true CN211397717U (en) | 2020-09-01 |
Family
ID=72233280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922478424.XU Active CN211397717U (en) | 2019-12-31 | 2019-12-31 | Oil pump and vacuum pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397717U (en) |
-
2019
- 2019-12-31 CN CN201922478424.XU patent/CN211397717U/en active Active
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