CN209801129U - Oil pump with positioning pin die-cast on pump cover - Google Patents
Oil pump with positioning pin die-cast on pump cover Download PDFInfo
- Publication number
- CN209801129U CN209801129U CN201920414911.7U CN201920414911U CN209801129U CN 209801129 U CN209801129 U CN 209801129U CN 201920414911 U CN201920414911 U CN 201920414911U CN 209801129 U CN209801129 U CN 209801129U
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- China
- Prior art keywords
- pump
- pump cover
- holes
- positioning
- installation
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- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses an oil pump that die-casting has locating pin on pump cover, including the pump body, pump cover, inner rotor and external rotor, a plurality of first installation through-holes have been seted up at the pump cover edge, and die-casting has at least one locating pin on the installation face that the pump cover combines with the pump body. The pump body is provided with a plurality of second mounting holes and at least one positioning hole; the number of the first mounting holes is the same as that of the second mounting holes; the number of the positioning pins is the same as that of the positioning holes. After the pump cover and the pump body are installed in a matched mode, each positioning pin is inserted into one corresponding positioning hole, each first installation hole and one corresponding second installation hole are arranged coaxially, and bolts are screwed into the first installation holes and the second installation holes to fasten the pump cover and the pump body with the machine body. Through die-casting the locating pin on the pump cover, locating pin and the pump body are as an organic whole, in the assembling process, only need insert the locating pin in the locating hole that corresponds, alright complete pump cover and the cooperation of the pump body, it is very convenient to operate, and the location is accurate, save time.
Description
Technical Field
The utility model belongs to the technical field of the oil pump, concretely relates to die-cast has oil pump of locating pin on pump cover.
Background
Due to the large market demand for light trucks, especially low speed and high load vehicle models, such engines have high quality requirements for oil pumps. Long-term practice proves that in the operation of the engine oil pump, the three factors of pressure, flow and flow rate of lubricating oil at each lubricating part are different from each other in strict meaning, and reliable and reasonable oil supply at each different part is more important.
In the traditional oil pump, positioning holes are formed in both the pump cover and the pump body, and then positioning pins are inserted into the corresponding positioning holes to enable the pump cover and the pump body to be installed in a matched mode. However, the positioning pin can be inserted after the corresponding positioning holes of the pump cover and the pump body are coaxially aligned, and the process of coaxially aligning the corresponding positioning holes of the pump cover and the pump body is difficult, time-consuming and inconvenient to assemble.
Disclosure of Invention
An object of the utility model is to provide an oil pump that die-casting has locating pin on pump cover solves among the prior art on pump cover and the pump body and has all seted up the locating hole, just can insert the locating pin after the coaxial alignment of the corresponding locating hole of the pump cover and the pump body, with the in-process of the coaxial alignment of the corresponding locating hole of the pump cover and the pump body, more difficult, time-consuming, the inconvenient technical problem of installation.
The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme:
An oil pump with a positioning pin die-cast on a pump cover comprises a pump body, the pump cover, an inner rotor and an outer rotor, wherein an oil inlet channel and an oil outlet channel are formed in the pump cover; a plurality of first mounting through holes are formed in the edge of the pump cover, and at least one positioning pin is die-cast on the mounting surface of the combination of the pump cover and the pump body.
the pump body is provided with a plurality of second mounting holes and at least one positioning hole; the number of the first mounting holes is the same as that of the second mounting holes; the number of the positioning pins is the same as that of the positioning holes.
After the pump cover and the pump body are installed in a matched mode, each positioning pin is inserted into one corresponding positioning hole, each first installation hole and one corresponding second installation hole are arranged coaxially, and bolts are screwed into the first installation holes and the second installation holes to fasten the pump cover and the pump body with the machine body.
Through die-casting the locating pin on the pump cover, locating pin and the pump body are as an organic whole, in the assembling process, only need insert the locating pin in the locating hole that corresponds, alright complete pump cover and the cooperation of the pump body, it is very convenient to operate, and the location is accurate, save time.
The improved structure is characterized in that an inner spline is arranged in the center of the inner rotor, an outer spline is arranged on the rotating shaft, the inner rotor is connected with the rotating shaft through the spline, the connection is reliable, and the inner rotor and the rotating shaft are prevented from rotating relatively.
The number of the first mounting holes and the number of the second mounting holes are five, and the five first mounting holes are distributed on the edge of the pump cover along the circumferential direction.
in a further improvement, the number of the positioning pins is two.
Compared with the prior art, the beneficial effects of the utility model are that:
Through die-casting the locating pin on the pump cover, locating pin and the pump body are as an organic whole, in the assembling process, only need insert the locating pin in the locating hole that corresponds, alright complete pump cover and the cooperation of the pump body, it is very convenient to operate, and the location is accurate, save time.
Drawings
FIG. 1 is the front view of the pump cover of the oil pump with the positioning pin die-cast on the pump cover.
Fig. 2 is a schematic view a-a of fig. 1.
fig. 3 fig. 1 is a rear view.
Detailed Description
In order to make the purpose and technical solution of the present invention clearer, the following will combine the embodiments of the present invention to clearly and completely describe the technical solution of the present invention.
As shown in fig. 1-3, an oil pump with a pump cover die-cast with a positioning pin comprises a pump body, a pump cover 1, an inner rotor 3 and an outer rotor 2, wherein the pump cover 1 is provided with an oil inlet channel and an oil outlet channel; a plurality of first installation through holes 5 are formed in the edge of the pump cover, and at least one positioning pin 4 is die-cast on the installation surface of the pump cover 1 combined with the pump body.
The pump body is provided with a plurality of second mounting holes and at least one positioning hole; the number of the first mounting holes is the same as that of the second mounting holes; the number of the positioning pins is the same as that of the positioning holes.
After the pump cover and the pump body are installed in a matched mode, each positioning pin 4 is inserted into one corresponding positioning hole, each first installation hole and one corresponding second installation hole are arranged coaxially, and bolts are screwed into the first installation holes and the second installation holes to fasten the pump cover and the pump body with the machine body.
Through die-casting the locating pin on the pump cover, locating pin and the pump body are as an organic whole, in the assembling process, only need insert the locating pin in the locating hole that corresponds, alright complete pump cover and the cooperation of the pump body, it is very convenient to operate, and the location is accurate, save time.
In this embodiment, the center of the inner rotor 3 is provided with an inner spline, the rotating shaft is provided with an outer spline, the inner rotor is connected with the rotating shaft through the spline, the connection is reliable, and the relative rotation of the inner rotor and the rotating shaft is prevented.
In this embodiment, the number of the first mounting holes 5 and the second mounting holes is five, and the five first mounting holes are circumferentially distributed on the edge of the pump cover.
In the present embodiment, the number of the positioning pins 4 is two.
What has not been described in detail in the present invention is the prior art or can be realized by the prior art, and the specific embodiment of the present invention is only the preferred embodiment of the present invention, which is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention should be regarded as the technical scope of the present invention.
Claims (4)
1. An oil pump with a positioning pin die-cast on a pump cover comprises a pump body, the pump cover, an inner rotor and an outer rotor, and is characterized in that an oil inlet channel and an oil outlet channel are formed in the pump cover; the edge of the pump cover is provided with a plurality of first mounting through holes, and at least one positioning pin is die-cast on the mounting surface of the combination of the pump cover and the pump body;
The pump body is provided with a plurality of second mounting holes and at least one positioning hole; the number of the first mounting holes is the same as that of the second mounting holes; the number of the positioning pins is the same as that of the positioning holes;
After the pump cover and the pump body are installed in a matched mode, each positioning pin is inserted into one corresponding positioning hole, each first installation hole and one corresponding second installation hole are arranged coaxially, and bolts are screwed into the first installation holes and the second installation holes to fasten the pump cover and the pump body with the machine body.
2. The oil pump with the positioning pin die-cast on the pump cover according to claim 1, wherein an inner spline is arranged at the center of the inner rotor, an outer spline is arranged on the rotating shaft, and the inner rotor is connected with the rotating shaft through the splines.
3. An oil pump with positioning pins die-cast on a pump cover according to claim 1 or 2, wherein the number of the first mounting holes and the second mounting holes is five, and the five first mounting holes are circumferentially distributed on the edge of the pump cover.
4. The oil pump with the positioning pins die-cast on the pump cover according to claim 3, characterized in that the number of the positioning pins is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414911.7U CN209801129U (en) | 2019-03-28 | 2019-03-28 | Oil pump with positioning pin die-cast on pump cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920414911.7U CN209801129U (en) | 2019-03-28 | 2019-03-28 | Oil pump with positioning pin die-cast on pump cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209801129U true CN209801129U (en) | 2019-12-17 |
Family
ID=68827122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920414911.7U Expired - Fee Related CN209801129U (en) | 2019-03-28 | 2019-03-28 | Oil pump with positioning pin die-cast on pump cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209801129U (en) |
-
2019
- 2019-03-28 CN CN201920414911.7U patent/CN209801129U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |