CN218720541U - Duplex oil pump - Google Patents
Duplex oil pump Download PDFInfo
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- CN218720541U CN218720541U CN202223057570.3U CN202223057570U CN218720541U CN 218720541 U CN218720541 U CN 218720541U CN 202223057570 U CN202223057570 U CN 202223057570U CN 218720541 U CN218720541 U CN 218720541U
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- oil
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- pump cover
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Abstract
The utility model discloses a duplex oil pump, which comprises a pump body and a pump cover which are connected through bolts, wherein driving shafts are arranged inside the pump body and the pump cover, driven shafts which are arranged in parallel with the driving shafts are respectively arranged on two sides of the driving shafts, oil pump gears are respectively assembled on the driving shafts and the driven shafts, and adjacent oil pump gears are meshed and connected; a pump body oil inlet cavity and a pump body oil outlet cavity are formed in the pump body; the end part, far away from the pump body, of the pump cover is provided with an oil inlet and an oil outlet, a pump cover oil inlet cavity and a pump cover oil outlet cavity are arranged inside the pump cover, the pump cover oil inlet cavity corresponds to the pump body oil inlet cavity and is communicated with the pump body oil inlet cavity, and the pump cover oil outlet cavity corresponds to the pump body oil outlet cavity and is communicated with the pump body oil outlet cavity. The utility model provides a pair oil pump can increase the oil absorption area, improves the flow and the performance of oil pump, makes the flow more smooth and easy steady when the output, and can save installation space.
Description
Technical Field
The utility model relates to a pair oil pump, specific theory relates to a high flow pair oil pump, belongs to oil pump technical field.
Background
In a lubricating system, an oil pump is used for forcibly pressing and conveying oil to the motion surfaces of various parts of an engine after the oil is increased to a certain pressure, and the oil pump is mainly divided into a gear type oil pump, a rotor type oil pump and a vane pump. At present, a gear type oil pump is generally adopted by a large-scale engine to lubricate all parts of the engine. The gear type engine oil pump has the working principle that a driving gear drives a driven gear to rotate during operation, partial vacuum is formed on a suction side when the gears are meshed to be separated, liquid is sucked, the sucked liquid fills all the valleys of the gears and is carried to a discharge side, and the liquid is extruded when the gears are meshed to form high-pressure liquid and is discharged out of the pump through a pump discharge port.
Patent No. CN202122978179.6 discloses a gear type oil pump, including casing and installation component, the inside of casing is provided with movable mounting respectively has transmission shaft and driven shaft, and the surface of transmission shaft and driven shaft all overlaps and is equipped with meshing gear, two meshing gear intermeshing.
The gear type oil pump disclosed by the patent and the existing gear type oil pump are generally only provided with an oil inlet and outlet cavity on the pump body, only a pair of driving and driven gear rotary pump oil is provided, the engine oil directly enters the oil inlet cavity of the pump body after being sucked from the oil suction port, and the whole oil suction process is finished by one side of the pump body, so that the flow is limited to a certain extent, and the flow of the engine oil pump cannot meet the lubricating requirement of a large-scale engine. Due to the restriction of the internal space of the engine, a plurality of oil pumps cannot be installed at the same time to meet the flow requirement of the engine.
In summary, there is a need in the art for an oil pump that can save installation space and improve flow rate, so as to solve the deficiencies in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to not enough in the background art, provide a pair oil pump, can increase the oil absorption area, improve the flow and the performance of oil pump, make the flow more smooth and easy steady when the output, and can save installation space.
For solving the technical problem, the utility model discloses a following technical scheme:
the duplex oil pump comprises a pump body and a pump cover which are connected through bolts, wherein driving shafts are arranged in the pump body and the pump cover, driven shafts which are arranged in parallel with the driving shafts are respectively arranged on two sides of the driving shafts, oil pump gears are respectively assembled on the driving shafts and the driven shafts, and adjacent oil pump gears are meshed and connected;
a pump body oil inlet cavity and a pump body oil outlet cavity are formed in the pump body; the end part, far away from the pump body, of the pump cover is provided with an oil inlet and an oil outlet, a pump cover oil inlet cavity and a pump cover oil outlet cavity are arranged inside the pump cover, the pump cover oil inlet cavity corresponds to the pump body oil inlet cavity and is communicated with the pump body oil inlet cavity, and the pump cover oil outlet cavity corresponds to the pump body oil outlet cavity and is communicated with the pump body oil outlet cavity.
The utility model provides an optimize scheme, all be equipped with three shaft hole on the pump body and the pump cover, the shaft hole on the pump body corresponds the setting with the shaft hole on the pump cover.
Furthermore, bushings are arranged at the joints of the driving shaft and the pump body and the pump cover, bushings are arranged at the joints of the driven shaft and the pump body and the pump cover, and the bushings are arranged in the shaft holes.
Furthermore, the number of the pump body oil inlet cavity and the pump body oil outlet cavity is two, and the two oil inlet cavities and the two oil outlet cavities are arranged in a staggered mode.
Furthermore, the number of the pump cover oil inlet cavities and the pump cover oil outlet cavities is two, the two pump cover oil inlet cavities are communicated with the oil inlet, and the two pump cover oil outlet cavities are communicated with the oil outlet.
Furthermore, pump cover oil inlet chamber and pump cover oil outlet chamber are crisscross setting.
Furthermore, one end of the driving shaft extends out of the pump body, and a driving gear is assembled on the shaft end.
Further, the driving gear is meshed with an intermediate gear, and the intermediate gear is assembled on the pump body through an intermediate gear shaft.
Further, the intermediate gear is in transmission connection with the engine.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model adopts a double-driven gear structure, the pump body and the pump cover are both provided with oil inlet and outlet cavities, when the engine oil pump works, one driving gear simultaneously drives two driven gears to rotate, so that the engine oil is sucked from the oil inlet and then respectively enters the oil cavities at the left side and the right side, the defect of single-side suction in the prior art is changed, the oil suction area is enlarged, the flow of the engine oil pump is greatly improved, and the flow is more smooth and stable during output;
the utility model provides an oil pocket area is big, compact structure, and oil absorption stable performance, with low costs can popularize and apply on large-scale engine.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the present invention in another direction;
FIG. 3 is a schematic view of the internal structure of the pump body;
FIG. 4 is a schematic diagram of a pump cap;
FIG. 5 is a schematic view of the pump cap in another orientation;
fig. 6 is a structural sectional view of the present invention.
In the figure, 1-pump body, 101-pump body oil inlet cavity and 102-pump body oil outlet cavity; 2-pump cover, 201-oil inlet, 202-oil outlet, 203-pump cover oil inlet cavity and 204-pump cover oil outlet cavity; 3-driving shaft; 4-a driven shaft; 5-oil pump gear; 6-a lining; 7-driving gear, 8-intermediate gear and 9-intermediate gear shaft.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-6, the utility model provides a duplex oil pump, including the pump body 1 and the pump cover 2 through bolted connection.
The pump body 1 and the pump cover 2 are internally provided with a driving shaft 3, and two sides of the driving shaft 3 are respectively provided with a driven shaft 4 which is arranged in parallel with the driving shaft.
All be equipped with three shaft hole on the pump body 1 and the pump cover 2, the shaft hole on the pump body 1 corresponds the setting with the shaft hole on the pump cover 2, and the shaft hole is used for installing the spindle nose at driving shaft 3 and 4 both ends of driven shaft.
The bush 6 is all installed with the junction of the pump body 1, pump cover 2 to driving shaft 3, and the bush 6 is all installed with the junction of the pump body 1, pump cover 2 to driven shaft 4, and the bush 6 is established in the shaft hole, and the bush 6 rotates driving shaft 3 and driven shaft 4 and supports, and bush 6 can play the function of preventing wearing and tearing shaft hole and pump shaft excircle.
The main bodies of the driving shaft 3 and the driven shaft 4 are respectively provided with an oil pump gear 5, and the adjacent oil pump gears 5 are meshed and connected.
The pump body 1 is internally provided with a pump body oil inlet cavity 101 and a pump body oil outlet cavity 102, and the number of the pump body oil inlet cavities 101 and the pump body oil outlet cavities 102 is two and is staggered.
One end of the driving shaft 3 extends out of the pump body 1, and a driving gear 7 is assembled on the shaft end; the driving gear 7 is meshed with the intermediate gear 8, and the intermediate gear 8 is assembled on the pump body 1 through an intermediate gear shaft 9.
The intermediate gear 8 is in transmission connection with the engine. The intermediate gear 8 drives the driving gear 7 to rotate under the driving of the engine, and the driving gear 7 drives the oil pump gear 5 to rotate at the same rotating speed through the driving shaft 3.
An oil inlet 201 and an oil outlet 202 are arranged on the end part, far away from the pump body 1, of the pump cover 2, and a pump cover oil inlet cavity 203 and a pump cover oil outlet cavity 204 are arranged inside the pump cover 2.
The number of the pump cover oil inlet cavities 203 and the pump cover oil outlet cavities 204 is two, the two pump cover oil inlet cavities 203 are both communicated with the oil inlet 201, and the two pump cover oil outlet cavities 204 are both communicated with the oil outlet 202.
The pump cover oil inlet cavity 203 and the pump cover oil outlet cavity 204 are arranged in a staggered manner, the pump cover oil inlet cavity 203 corresponds to and is communicated with the pump body oil inlet cavity 101, and the pump cover oil outlet cavity 204 corresponds to and is communicated with the pump body oil outlet cavity 102.
The utility model discloses a concrete theory of operation:
when the oil pump works, the intermediate gear 8 drives the driving gear 7 to rotate under the driving of an engine, the driving gear 7 drives the oil pump gears 5 to rotate at the same rotating speed through the driving shaft 3, the middle driving oil pump gear 5 rotates and simultaneously drives the driven oil pump gears 5 on two sides to rotate together, so that after oil is sucked from the oil inlet 201, one part of the oil enters the left oil inlet cavities of the pump body 1 and the pump cover 2, the other part of the oil enters the right oil inlet cavities of the pump body 1 and the pump cover 2, and the two sides of the oil are sucked simultaneously.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (9)
1. Duplex oil pump includes pump body (1) and pump cover (2) through bolted connection, its characterized in that: a driving shaft (3) is arranged inside the pump body (1) and the pump cover (2), driven shafts (4) which are arranged in parallel with the driving shaft (3) are respectively arranged on two sides of the driving shaft (3), oil pump gears (5) are respectively assembled on the driving shaft (3) and the driven shafts (4), and adjacent oil pump gears (5) are meshed and connected;
a pump body oil inlet cavity (101) and a pump body oil outlet cavity (102) are formed in the pump body (1); the end part, far away from the pump body (1), of the pump cover (2) is provided with an oil inlet (201) and an oil outlet (202), a pump cover oil inlet cavity (203) and a pump cover oil outlet cavity (204) are arranged inside the pump cover (2), the pump cover oil inlet cavity (203) corresponds to the pump body oil inlet cavity (101) and is communicated with the pump cover oil inlet cavity, and the pump cover oil outlet cavity (204) corresponds to the pump body oil outlet cavity (102) and is communicated with the pump cover oil outlet cavity.
2. The twin oil pump of claim 1, wherein: all be equipped with three shaft hole on pump body (1) and pump cover (2), the shaft hole on the pump body (1) corresponds the setting with the shaft hole on pump cover (2).
3. The dual oil pump of claim 2, wherein: the driving shaft (3) is connected with the pump body (1) and the pump cover (2) through the connecting portions, the driven shaft (4) is connected with the pump body (1) and the pump cover (2) through the connecting portions, and the bushings (6) are arranged in the shaft holes.
4. The tandem oil pump of claim 1, wherein: the number of the pump body oil inlet cavities (101) and the number of the pump body oil outlet cavities (102) are two and are arranged in a staggered mode.
5. The twin oil pump of claim 4, wherein: the oil pump is characterized in that the number of the pump cover oil inlet cavities (203) and the number of the pump cover oil outlet cavities (204) are two, the two pump cover oil inlet cavities (203) are communicated with the oil inlet (201), and the two pump cover oil outlet cavities (204) are communicated with the oil outlet (202).
6. The twin oil pump of claim 5, wherein: the pump cover oil inlet cavity (203) and the pump cover oil outlet cavity (204) are arranged in a staggered mode.
7. The twin oil pump of claim 1, wherein: one end of the driving shaft (3) extends out of the pump body (1), and a driving gear (7) is assembled on the shaft end.
8. The twin oil pump of claim 7, wherein: the driving gear (7) is meshed with the intermediate gear (8), and the intermediate gear (8) is assembled on the pump body (1) through an intermediate gear shaft (9).
9. The twin oil pump of claim 8, wherein: the intermediate gear (8) is in transmission connection with the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223057570.3U CN218720541U (en) | 2022-11-17 | 2022-11-17 | Duplex oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223057570.3U CN218720541U (en) | 2022-11-17 | 2022-11-17 | Duplex oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218720541U true CN218720541U (en) | 2023-03-24 |
Family
ID=85621898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223057570.3U Active CN218720541U (en) | 2022-11-17 | 2022-11-17 | Duplex oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218720541U (en) |
-
2022
- 2022-11-17 CN CN202223057570.3U patent/CN218720541U/en active Active
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