CN220353919U - Combined oil pump of diesel engine and diesel engine thereof - Google Patents
Combined oil pump of diesel engine and diesel engine thereof Download PDFInfo
- Publication number
- CN220353919U CN220353919U CN202322306253.9U CN202322306253U CN220353919U CN 220353919 U CN220353919 U CN 220353919U CN 202322306253 U CN202322306253 U CN 202322306253U CN 220353919 U CN220353919 U CN 220353919U
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- China
- Prior art keywords
- oil pump
- fuel pump
- driving shaft
- fuel
- diesel engine
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- 239000000446 fuel Substances 0.000 claims abstract description 105
- 239000003921 oil Substances 0.000 claims description 188
- 230000005540 biological transmission Effects 0.000 claims description 18
- 239000010705 motor oil Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model discloses a diesel engine combined oil pump and a diesel engine thereof, wherein the diesel engine combined oil pump comprises a fuel pump and an oil pump, a fuel pump driving shaft and a fuel pump driven shaft are rotationally arranged in a fuel pump shell, the fuel pump driving shaft is connected with the fuel pump driven shaft through a pair of gears, the oil pump driving shaft and the oil pump driven shaft are rotationally arranged in the oil pump shell, the oil pump driving shaft is connected with the oil pump driven shaft through a pair of gears, the input end of the oil pump driving shaft extends out of an oil pump cover plate and is fixedly provided with a driving gear, the other end of the fuel pump shell is fixedly connected with the other end of the oil pump shell, and the output end of the oil pump driving shaft is fixedly connected with the input end of the fuel pump driving shaft. The combined oil pump of the diesel engine has the functions of an oil pump and a fuel pump, and is compact in structure and small in occupied space. The diesel engine provided with the combined oil pump has compact structure and small overall size.
Description
Technical Field
The utility model relates to the technical field of diesel engines, in particular to a diesel engine combined oil pump and a diesel engine thereof.
Background
The diesel engine oil pump is an oil pump for providing lubricating oil for a diesel engine, and is mainly used for conveying and recovering lubricating oil of a bearing and a transmission gear part of the diesel engine. The fuel pump of diesel engine is an oil pump for providing fuel to diesel engine, and is mainly used for ensuring that diesel oil can circulate in low-pressure oil path and supplying fuel with sufficient quantity and certain pressure. The crankshaft of the diesel engine provides power and drives the oil pump and the fuel pump to work through gears.
In the prior art, the oil pump and the fuel pump are all independent individuals and are respectively arranged at different positions at the front end of the diesel engine, and as the oil pump and the fuel pump respectively and independently work, two sets of motors and controllers are needed, the structure and the control are complex, and the occupied space is large. The front end space of some types of diesel engines is limited, and the space required by arranging an oil pump and a fuel pump at the same time cannot be met. Accordingly, improvements in the structures of the existing oil pumps and fuel pumps are required to meet the need to simultaneously arrange two kinds of oil pumps at the front end of a diesel engine.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide the combined oil pump of the diesel engine and the diesel engine, wherein the combined oil pump of the diesel engine has the functions of an oil pump and a fuel pump, and has the advantages of compact structure, small occupied space and reduced overall size of the diesel engine.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a diesel combined oil pump comprising: the fuel pump and the oil pump are characterized in that,
the fuel pump comprises a fuel pump shell, one end of the fuel pump shell is fixedly provided with a fuel pump cover plate, a fuel pump driving shaft and a fuel pump driven shaft are rotationally arranged in the fuel pump shell, the fuel pump driving shaft is connected with the fuel pump driven shaft through a pair of gears in a transmission way,
the oil pump comprises an oil pump shell, an oil pump cover plate is fixed at one end of the oil pump shell, an oil pump driving shaft and an oil pump driven shaft are rotationally arranged in the oil pump shell, the oil pump driving shaft is connected with the oil pump driven shaft through a pair of gears in a transmission way, the input end of the oil pump driving shaft extends out of the oil pump cover plate and is fixed with a driving gear,
the other end of the fuel pump shell is fixedly connected with the other end of the oil pump shell, and the output end of the oil pump driving shaft is fixedly connected with the input end of the fuel pump driving shaft.
Preferably: spline grooves are formed in the output end of the oil pump driving shaft, and splines connected with the spline grooves are arranged at the input end of the oil pump driving shaft.
Preferably: the other end of the fuel pump shell is fixedly connected with the other end of the oil pump shell through a plurality of bolts.
Preferably: the other end of the fuel pump shell is embedded into the other end of the oil pump shell, and a first sealing ring is arranged between the embedded part of the fuel pump shell and the oil pump shell.
Preferably: the fuel pump cover plate is fixedly connected to the fuel pump shell through a plurality of first bolts.
Preferably: the oil pump cover plate is fixedly connected to the oil pump shell through a plurality of second bolts.
Preferably: the combined oil pump of the diesel engine is provided with a connecting flange plate, the connecting flange plate is positioned on the engine oil pump shell, and the connecting flange plate is fixedly connected to a machine body of the diesel engine through a plurality of third bolts.
Preferably: the fuel pump is characterized in that a first driving gear is fixed on the driving shaft of the fuel pump, a first driven gear is fixed on the driven shaft of the fuel pump, and the first driving gear is meshed with the first driven gear for transmission.
Preferably: the driving shaft of the oil pump is fixedly provided with a second driving gear, the driven shaft of the oil pump is fixedly provided with a second driven gear, and the second driving gear and the second driven gear are meshed for transmission.
A diesel engine, characterized by: comprises the diesel engine combined oil pump.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the utility model discloses a combined type oil pump of a diesel engine, which comprises a fuel pump and an oil pump, wherein a fuel pump cover plate is fixed at one end of a fuel pump shell, a fuel pump driving shaft and a fuel pump driven shaft are rotatably arranged in the fuel pump shell, the fuel pump driving shaft is connected with the fuel pump driven shaft through a pair of gear transmission, the oil pump cover plate is fixed at one end of the oil pump shell, the oil pump driving shaft and the oil pump driven shaft are rotatably arranged in the oil pump shell, the oil pump driving shaft is connected with the oil pump driven shaft through a pair of gear transmission, the input end of the oil pump driving shaft extends out of the oil pump cover plate and is fixedly provided with a driving gear, the other end of the fuel pump shell is fixedly connected with the other end of the oil pump shell, and the output end of the oil pump driving shaft is fixedly connected with the input end of the fuel pump driving shaft.
When the device works, the diesel engine rotates to drive the oil pump to drive the gear to rotate, the driving gear drives the oil pump driving shaft of the engine to rotate, and the oil pump driving shaft and the oil pump driven shaft are in meshed transmission through a pair of gears, so that the oil pump driven shaft rotates, the inter-tooth volume is changed through the meshing of the gears, the pressure of lubricating oil is improved, and the lubricating oil is forcedly conveyed to the moving surfaces of all parts of the diesel engine; meanwhile, the oil pump driving shaft is fixedly connected with the oil pump driving shaft, so that the oil pump driving shaft drives the oil pump driving shaft to rotate, the oil pump driving shaft and the oil pump driven shaft are in meshed transmission through a pair of gears, the inter-tooth volume is changed through the meshing of the gears, and oil is sucked or extruded out, so that the oil can circulate in a pipeline.
The output end of the oil pump driving shaft of the combined oil pump of the diesel engine is fixedly connected with the input end of the oil pump driving shaft, the input end of the oil pump driving shaft is fixedly provided with a driving gear, and the oil pump driving shaft is driven to rotate through rotation of the driving gear, so that the oil pump and the oil pump are coaxially driven, and one end of the oil pump is driven to drive the two pumps to work. The combined oil pump of the diesel engine has the functions of the oil pump and the fuel pump, and has a compact structure and small occupied space compared with the traditional independently arranged oil pump and fuel pump.
When the combined oil pump of the diesel engine is installed on the diesel engine, the engine oil pump part of the combined oil pump is embedded into the engine body of the diesel engine for installation, so that the space occupied during installation is saved, the diesel engine for installing the combined oil pump is compact in structure and small in overall size, and the combined oil pump of the diesel engine is convenient to manufacture, install and maintain. As the same applies to diesel engines with limited front end space.
Drawings
Fig. 1 is a schematic view of the structure of a diesel engine combined oil pump (mounted on a diesel engine body) of the present utility model;
FIG. 2 is a schematic left-hand view of FIG. 1;
in the figure:
1. a fuel pump; 101. a fuel pump housing; 102. a fuel pump cover plate; 103. a fuel pump drive shaft; 1031. a spline; 104. a fuel pump driven shaft; 105. a first driven gear; 106. a first drive gear; 2. an oil pump; 201. an oil pump housing; 2011. a connecting flange plate; 202. an oil pump cover plate; 203. a driving shaft of the oil pump; 2031. spline grooves; 204. an oil pump driven shaft; 205. a second drive gear; 206. a second driven gear; 207. a drive gear; 3. a first seal ring; 4. a first bolt; 5. a second bolt; 6. a third bolt; 7. a diesel engine body; 8. a second seal ring; 9. a third seal ring; 10. and a fourth bolt.
Detailed Description
The following detailed description of the present utility model is provided with reference to the accompanying drawings and specific embodiments, so as to further understand the purpose, the scheme and the effects of the present utility model, but not to limit the scope of the appended claims.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, although the terms first, second, third and the like may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
A diesel combined oil pump as shown in fig. 1 to 2, comprising: the fuel pump 1 and the oil pump 2, the fuel pump 1 comprises a fuel pump shell 101, a fuel pump cover plate 102 is fixed at one end of the fuel pump shell 101, a fuel pump driving shaft 103 and a fuel pump driven shaft 104 are rotatably arranged in the fuel pump shell 101, the fuel pump driving shaft 103 and the fuel pump driven shaft 104 are connected through a pair of gears,
the oil pump 2 comprises an oil pump shell 201, an oil pump cover plate 202 is fixed at one end of the oil pump shell 201, an oil pump driving shaft 203 and an oil pump driven shaft 204 are rotatably arranged in the oil pump shell 201, the oil pump driving shaft 203 and the oil pump driven shaft 204 are connected through a pair of gears in a transmission way, the input end of the oil pump driving shaft 203 extends out of the oil pump cover plate 202 and is fixed with a driving gear 207,
the other end of the fuel pump housing 101 is fixedly connected with the other end of the oil pump housing 201, and the output end of the oil pump driving shaft 203 is fixedly connected with the input end of the fuel pump driving shaft 103.
In some embodiments of the present utility model, the output end of the oil pump driveshaft 203 is splined and the input end of the fuel pump driveshaft 103 is provided with splines 1031 that are keyed to the splined grooves 2031. Of course, the output end of the oil pump driving shaft 203 and the input end of the oil pump driving shaft 103 may be fixedly connected by other connection methods.
The other end of the fuel pump housing 101 is fixedly connected to the other end of the oil pump housing 201 by a plurality of bolts. That is, as shown in fig. 1, the left end of the fuel pump housing 101 and the right end of the oil pump housing 201 are fixedly connected by a plurality of bolts. The bolts are fourth bolts, and a plurality of fourth bolts 10 are uniformly distributed on the fuel pump housing 101 and the oil pump housing 201 around the center of the oil pump driving shaft 203 along the circumference for fixedly connecting the fuel pump housing 101 and the oil pump housing 201.
In some embodiments of the present utility model, the other end of the fuel pump housing 101 is embedded in the other end of the oil pump housing 201, i.e., as shown in fig. 1, the left end of the fuel pump housing 101 is embedded in the right end of the oil pump housing 201, and a first seal ring 3 is provided between the embedded portion of the fuel pump housing 101 and the oil pump housing 201. The first sealing ring 3 is used for sealing the joint of the fuel pump housing 101 and the oil pump housing 201 to prevent oil from leaking.
The fuel pump cover 102 is fixedly connected to the fuel pump housing 101 by a plurality of first bolts 4.
The oil pump cover 202 is fixedly connected to the oil pump housing 201 by a plurality of second bolts 5.
The diesel engine combined oil pump is provided with a connecting flange 2011, the connecting flange is positioned on the oil pump shell 201, and the connecting flange 2011 is fixedly connected to the diesel engine body 7 through a plurality of third bolts 6.
A first driving gear 106 is fixed on the driving shaft 103 of the fuel pump, a first driven gear 105 is fixed on the driven shaft 104 of the fuel pump, and the first driving gear 106 is meshed with the first driven gear 105 for transmission.
A second driving gear 205 is fixed on the oil pump driving shaft 203, a second driven gear 206 is fixed on the oil pump driven shaft 204, and the second driving gear 205 and the second driven gear 206 are meshed for transmission.
The fuel pump body and the engine oil pump body structure are specially designed, and are connected with the engine oil pump driving gear shaft through the spline of the fuel pump driving gear shaft, and one end of the engine oil pump driving gear shaft is driven to drive the two pumps to work simultaneously, so that the diesel engine combined oil pump has the functions of the fuel pump and the engine oil pump.
When the diesel engine works, the diesel engine rotates to drive the oil pump driving gear 207 to rotate, the driving gear 207 drives the oil pump driving shaft 203 to rotate, the second driving gear 205 on the oil pump driving shaft 203 is meshed with the second driven gear 206 on the oil pump driven shaft 204 for transmission, so that the oil pump driven shaft 204 rotates, the inter-tooth volume is changed through the meshing of the second driving gear 205 and the second driven gear 206, the pressure of lubricating oil is improved, and the pressure forces the lubricating oil to be conveyed to the moving surfaces of all parts of the diesel engine; meanwhile, since the oil pump driving shaft 203 is fixedly connected with the oil pump driving shaft 103, the oil pump driving shaft 203 drives the oil pump driving shaft 103 to rotate, the oil pump driving shaft 103 drives the oil pump driven shaft 104 to rotate through the meshing transmission of the first driving gear 106 and the first driven gear 105, and the first driving gear 106 and the first driven gear 105 are meshed to change the inter-tooth volume, so that oil is sucked or extruded, and the oil is circulated in a pipeline.
A diesel engine comprises the diesel engine combined oil pump. As shown in fig. 1, when the combined oil pump for a diesel engine is mounted on the diesel engine body 7, the oil pump body of the combined oil pump is inserted into the opening of the diesel engine body 7, and is sealed by the second seal ring 8 and the third seal ring 9, and the connection flange 2011 is fixed on the diesel engine body 7 by the third bolt 6, so that the mounting is completed.
According to the diesel engine combined type oil pump, the output end of the oil pump driving shaft is fixedly connected with the input end of the oil pump driving shaft, the driving gear is fixed at the input end of the oil pump driving shaft, and the oil pump driving shaft is driven to rotate through rotation of the driving gear, so that the oil pump and the oil pump are coaxially driven, and one end of the oil pump driving shaft is driven to drive the two pumps to work. The combined oil pump of the diesel engine has the functions of the oil pump and the fuel pump, and has a compact structure and small occupied space compared with the traditional independently arranged oil pump and fuel pump.
When the combined oil pump of the diesel engine is installed on the diesel engine, the engine oil pump part of the combined oil pump is embedded into the engine body of the diesel engine for installation, so that the space occupied during installation is saved, the diesel engine for installing the combined oil pump is compact in structure and small in overall size, and the combined oil pump of the diesel engine is convenient to manufacture, install and maintain. As the same applies to diesel engines with limited front end space.
The present utility model is not limited to the above-described embodiments, and all modifications based on the concept, principle, structure and method of the present utility model are within the scope of the present utility model.
Claims (10)
1. A diesel combined oil pump comprising: the fuel pump and the oil pump are characterized in that,
the fuel pump comprises a fuel pump shell, one end of the fuel pump shell is fixedly provided with a fuel pump cover plate, a fuel pump driving shaft and a fuel pump driven shaft are rotationally arranged in the fuel pump shell, the fuel pump driving shaft is connected with the fuel pump driven shaft through a pair of gears in a transmission way,
the oil pump comprises an oil pump shell, an oil pump cover plate is fixed at one end of the oil pump shell, an oil pump driving shaft and an oil pump driven shaft are rotationally arranged in the oil pump shell, the oil pump driving shaft is connected with the oil pump driven shaft through a pair of gears in a transmission way, the input end of the oil pump driving shaft extends out of the oil pump cover plate and is fixed with a driving gear,
the other end of the fuel pump shell is fixedly connected with the other end of the oil pump shell, and the output end of the oil pump driving shaft is fixedly connected with the input end of the fuel pump driving shaft.
2. The diesel combination oil pump of claim 1, wherein: spline grooves are formed in the output end of the oil pump driving shaft, and splines connected with the spline grooves are arranged at the input end of the oil pump driving shaft.
3. The diesel combination oil pump of claim 1, wherein: the other end of the fuel pump shell is fixedly connected with the other end of the oil pump shell through a plurality of bolts.
4. A diesel combination oil pump as set forth in claim 3 wherein: the other end of the fuel pump shell is embedded into the other end of the oil pump shell, and a first sealing ring is arranged between the embedded part of the fuel pump shell and the oil pump shell.
5. The diesel combination oil pump of claim 1, wherein: the fuel pump cover plate is fixedly connected to the fuel pump shell through a plurality of first bolts.
6. The diesel combination oil pump of claim 1, wherein: the oil pump cover plate is fixedly connected to the oil pump shell through a plurality of second bolts.
7. The diesel combination oil pump of claim 1, wherein: the combined oil pump of the diesel engine is provided with a connecting flange plate, the connecting flange plate is positioned on the engine oil pump shell, and the connecting flange plate is fixedly connected to a machine body of the diesel engine through a plurality of third bolts.
8. The diesel combination oil pump of claim 1, wherein: the fuel pump is characterized in that a first driving gear is fixed on the driving shaft of the fuel pump, a first driven gear is fixed on the driven shaft of the fuel pump, and the first driving gear is meshed with the first driven gear for transmission.
9. The diesel combination oil pump of claim 1, wherein: the driving shaft of the oil pump is fixedly provided with a second driving gear, the driven shaft of the oil pump is fixedly provided with a second driven gear, and the second driving gear and the second driven gear are meshed for transmission.
10. A diesel engine, characterized by: comprising a diesel combination oil pump according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322306253.9U CN220353919U (en) | 2023-08-25 | 2023-08-25 | Combined oil pump of diesel engine and diesel engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322306253.9U CN220353919U (en) | 2023-08-25 | 2023-08-25 | Combined oil pump of diesel engine and diesel engine thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220353919U true CN220353919U (en) | 2024-01-16 |
Family
ID=89481018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322306253.9U Active CN220353919U (en) | 2023-08-25 | 2023-08-25 | Combined oil pump of diesel engine and diesel engine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220353919U (en) |
-
2023
- 2023-08-25 CN CN202322306253.9U patent/CN220353919U/en active Active
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