CN201129212Y - Diesel high pressure oil pump timing transmission structure - Google Patents
Diesel high pressure oil pump timing transmission structure Download PDFInfo
- Publication number
- CN201129212Y CN201129212Y CNU2007201875858U CN200720187585U CN201129212Y CN 201129212 Y CN201129212 Y CN 201129212Y CN U2007201875858 U CNU2007201875858 U CN U2007201875858U CN 200720187585 U CN200720187585 U CN 200720187585U CN 201129212 Y CN201129212 Y CN 201129212Y
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- CN
- China
- Prior art keywords
- high pressure
- oil pump
- pressure oil
- timing
- idle gear
- 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.)
- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a timing driving structure of a diesel engine high pressure oil pump, which comprises a crank shaft and a high pressure oil pump rotating shaft, an idle gear base is arranged on an end face of a diesel engine cylinder body which is arranged between the crank shaft and the high pressure oil pump rotating shaft, a chain tension fixing track mounting base of the high pressure oil pump and a chain tension movable track mounting base of the high pressure oil pump are disposed on the diesel engine arranged between the crank shaft and the high pressure oil pump rotating shaft, a crankcase or a fuel pump. The timing driving system of the high pressure oil pump of the utility model is simple and compact in structure, high in versatility of parts and low in cost, is convenient to realize the exchange of driving modes of gears and chains, and can be used for timing driving systems of varieties of diesel engine high pressure oil pumps.
Description
Technical field
The utility model relates to a kind of high-pressure fuel pump of diesel engine timing drive mechanism, particularly can adopt the high-pressure fuel pump of diesel engine timing drive mechanism of the multiple kind of drive.
Background technique
At present, most employing gear transmission of the diesel engine for automobile high pressure oil pump timing transmission system kind of drive or chain transmission.On the one hand, traditional gear transmission becomes a kind of main kind of drive with its stable velocity ratio, higher transmission efficiency, higher reliability and long advantages such as working life thereof; On the other hand, when the distance between shafts of high pressure oil pump and bent axle bigger, for satisfying the requirement of diesel engine to lightweight, low noise, the development of high rotary speed direction, be accompanied by the develop rapidly of chain transmission technology simultaneously, chain transmission is applied in the high pressure oil pump timing transmission system more and more.
Summary of the invention
For satisfying diesel engine cost control requirement and product up-gradation demand, the utility model provides a kind of gear, the interchangeable high pressure oil pump timing of chain transmission drive mechanism, can realize the simple cylinder block high pressure oil pump timing drive mechanism that exchanges of high pressure oil pump gear timing transmission system and high pressure oil pump chain timing transmission system.
The utility model high-pressure fuel pump of diesel engine timing drive mechanism comprises bent axle and high pressure oil pump rotating shaft, diesel engine cylinder body end face between bent axle and high pressure oil pump rotating shaft is arranged the idle gear seat, and the moving rail fitting seat of high pressure oil pump chain tension orbit determination fitting seat and high pressure oil pump chain tension is set on the diesel engine cylinder block, crankcase or the oil pump that comprise between bent axle and the high pressure oil pump rotating shaft.
In the utility model high-pressure fuel pump of diesel engine timing drive mechanism, the idle gear seat contains oil leab and idle gear component installation structure.When high-pressure fuel pump of diesel engine timing drive mechanism adopts gear transmission, the part that uses comprises the crankshaft timing gear that is installed on the bent axle, be installed in the idle gear assembly on the idle gear seat and be installed in high pressure oil pump gear in the high pressure oil pump rotating shaft, crankshaft timing gear and idle gear are meshing with each other, and idle gear and high pressure oil pump gear are meshing with each other.Bent axle drives the crankshaft timing gear rotation that is installed in its front end, drives the rotation of high pressure oil pump gear by the idle gear assembly with the crankshaft timing gear engagement, thereby drives high pressure oil pump.The idle gear assembly is fixed on by idle gear axle, idle gear baffle plate and fixing bolt thereof on the idle gear seat of cylinder block end face, and lubricant oil provides lubricated by oil leab for the idle gear assembly.
When chain transmission is adopted in high pressure oil pump timing transmission, the part that uses comprises the crankshaft sprocket that is installed on the bent axle, is installed in high pressure oil pump sprocket wheel and high pressure oil pump chain in the high pressure oil pump rotating shaft, and the high pressure oil pump chain moves the rail tensioning by tensioning orbit determination and tensioning.Bent axle drives the crankshaft sprocket rotation that is installed in its front end, drives the rotation of high pressure oil pump sprocket wheel by the high pressure oil pump chain with the crankshaft sprocket engagement, thereby drives high pressure oil pump.At this moment, the oil leab hole blocks stifledly on the cylinder block idle gear seat with aluminium, prevents that the high-tension lubrication oil leakage is to guarantee the normal lubricating oil pressure of complete machine.
The utility model high pressure oil pump timing drive system structure is simple, compact, can conveniently realize the exchange of gear, chain transmission mode, the component universality height, and cost is low, can be used for various high-pressure fuel pump of diesel engine timing transmission systems.
Description of drawings
Fig. 1 is the utility model high pressure oil pump gear timing transmission system plan view;
Fig. 2 is the utility model high pressure oil pump chain timing transmission system plan view.
Each part incorporation of markings indication of system is as follows among the figure:
The 1-crankshaft timing gear, 2-idle gear assembly, 3-idle gear baffle plate, 4-idle gear axle, 5-high pressure oil pump gear, 6-cylinder block, the 7-crankshaft sprocket, 8-high pressure oil pump chain orbit determination, 9-aluminium is stifled, 10-high pressure oil pump chain, 11-high pressure oil pump sprocket wheel, the 12-bolt, 13-high pressure oil pump chain moves rail, 14-idle gear seat, the 15-timing marks.
Embodiment
The utility model gear, the interchangeable high pressure oil pump timing of chain transmission drive mechanism comprise high pressure oil pump gear timing transmission system and high pressure oil pump chain timing transmission system, can realize two kinds of kinds of drive exchanges.Idle gear seat at cylinder block end face layout design band oil leab, when gear transmission is adopted in high pressure oil pump timing transmission, bent axle drives the crankshaft timing gear rotation that is installed in its front end, drive the rotation of high pressure oil pump gear by idle gear assembly, thereby drive high pressure oil pump with the crankshaft timing gear engagement.The idle gear assembly is fixed on by idle gear axle, idle gear baffle plate and fixing bolt thereof on the idle gear seat of cylinder block end face, and lubricant oil provides lubricated by oil leab for the idle gear assembly.When chain transmission is adopted in high pressure oil pump timing transmission, bent axle drives the crankshaft sprocket rotation that is installed in its front end, drive the rotation of high pressure oil pump sprocket wheel by high pressure oil pump chain with the crankshaft sprocket engagement, thereby the driving high pressure oil pump, wherein the high pressure oil pump chain is by being installed in high pressure oil pump chain orbit determination and the moving rail tensioning of high pressure oil pump chain on engine cylinder, crankcase and the oil pump.
When adopting gear transmission, the idle gear assembly is installed on the idle gear seat, is need not the chain transmission system part this moment; When adopting chain transmission, use the chain transmission system part, uneasy cogged transmission correlated parts on the idle gear seat.When adopting gear transmission, lubricant oil provides lubricated by oil leab for the idle gear assembly; When adopting chain transmission, the oil leab hole is blocked up with aluminium, prevents that the high-tension lubrication oil leakage is to guarantee the normal lubricating oil pressure of complete machine.Gear, chain transmission timing form only need more gear changing timing transmission system or chain timing transmission system component when exchanging, and do not need to change cylinder block and other component.Therefore, can select more competitive and transmission timing system price advantage according to the manufacture level and the product price of component manufacturer.The transmission system that also can adapt to Environmental Conditions more according to customer requirements and Environmental Conditions different choice, can satisfy diesel engine product up-gradation demand, when diesel powered promotes, when improving constantly, intensity can select that transmission efficiency height, velocity ratio are stable, reliable operation and long gear timing transmission system of life-span; When diesel engine to lightweight, low noise, can select the big and bigger chain timing transmission system of transmitted power of simple in structure, light, linear velocity when high-revolving direction develops.The utility model high pressure oil pump timing transmission system gear, chain transmission form are exchanged simple in structure, and cost is low.
A four cylinder diesel engine high pressure oil pump timing transmission systems with the utility model successful Application are that example is described below, and are as follows with reference to description of drawings:
As shown in Figure 1, when gear transmission was adopted in high pressure oil pump timing transmission, bent axle drove crankshaft timing gear 1 rotation that is installed in its front end, drives 5 rotations of high pressure oil pump gear by the idle gear assembly 2 with crankshaft timing gear 1 engagement, thereby drives high pressure oil pump.Idle gear assembly 2 is fixed on by idle gear axle 4, idle gear baffle plate 3 and fixing bolt thereof on the idle gear seat 14 of cylinder block end face, and lubricant oil provides lubricated by oil leab for idle gear assembly 2.
As shown in Figure 2, when chain transmission is adopted in high pressure oil pump timing transmission, bent axle drives crankshaft sprocket 7 rotations that are installed in its front end, drive 11 rotations of high pressure oil pump sprocket wheel by high pressure oil pump chain 10 with crankshaft sprocket 7 engagements, thereby the driving high pressure oil pump, wherein high pressure oil pump chain 10 is by being installed in high pressure oil pump chain orbit determination 8 and moving rail 13 tensionings of high pressure oil pump chain on engine cylinder, crankcase and the oil pump.At this moment, the oil leab hole is blocked up with aluminium stifled 9 on the cylinder block idle gear seat, prevents that the high-tension lubrication oil leakage is to guarantee the normal lubricating oil pressure of complete machine.
High pressure oil pump timing transmission is adopted gear, when chain transmission is exchanged, is only needed to change gear train assembly or chain transmission system component, and cylinder block 1 and other component do not need to change.
High pressure oil pump timing transmission has all designed timing marks 15 when adopting gear transmission or chain transmission, when adopting gear transmission, the timing marks that should make idle gear assembly 2 aligns with timing marks on crankshaft timing gear 1 and the high pressure oil pump gear 5 respectively; When adopting chain transmission, the timing marks on the high pressure oil pump chain 10 is alignd respectively with the timing marks of crankshaft sprocket 7 and high pressure oil pump sprocket wheel 11, thereby guarantee the accuracy of timing.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technological scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (6)
1, a kind of high-pressure fuel pump of diesel engine timing drive mechanism, comprise bent axle and high pressure oil pump rotating shaft, it is characterized in that: the diesel engine cylinder body end face between bent axle and high pressure oil pump rotating shaft is arranged the idle gear seat, and the moving rail fitting seat of high pressure oil pump chain tension orbit determination fitting seat and high pressure oil pump chain tension is set on the diesel engine cylinder block, crankcase or the oil pump that comprise between bent axle and the high pressure oil pump rotating shaft.
2, according to the described high-pressure fuel pump of diesel engine timing of claim 1 drive mechanism, it is characterized in that: described idle gear seat contains oil leab and idle gear component installation structure.
3, according to the described high-pressure fuel pump of diesel engine timing of claim 1 drive mechanism, it is characterized in that: when high-pressure fuel pump of diesel engine timing drive mechanism adopts gear transmission, the part that uses comprises the crankshaft timing gear that is installed on the bent axle, be installed in the idle gear assembly on the idle gear seat and be installed in high pressure oil pump gear in the high pressure oil pump rotating shaft, crankshaft timing gear and idle gear are meshing with each other, and idle gear and high pressure oil pump gear are meshing with each other; The idle gear assembly is fixed on the idle gear seat by idle gear axle, idle gear baffle plate and fixing bolt thereof, and lubricant oil provides lubricated by oil leab for the idle gear assembly.
4, according to the described high-pressure fuel pump of diesel engine timing of claim 1 drive mechanism, it is characterized in that: when chain transmission is adopted in high pressure oil pump timing transmission, the part that uses comprises the crankshaft sprocket that is installed on the bent axle, is installed in high pressure oil pump sprocket wheel and high pressure oil pump chain in the high pressure oil pump rotating shaft, and the high pressure oil pump chain moves the rail tensioning by tensioning orbit determination and tensioning; The oil leab hole blocks stifled on the idle gear seat with aluminium.
5, according to the described high-pressure fuel pump of diesel engine timing drive mechanism of claim 3, it is characterized in that: the timing marks of idle gear assembly aligns with timing marks on crankshaft timing gear and the high pressure oil pump gear respectively.
6, according to the described high-pressure fuel pump of diesel engine timing drive mechanism of claim 4, it is characterized in that: the timing marks on the high pressure oil pump chain aligns with the timing marks of crankshaft sprocket and high pressure oil pump sprocket wheel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201875858U CN201129212Y (en) | 2007-12-26 | 2007-12-26 | Diesel high pressure oil pump timing transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201875858U CN201129212Y (en) | 2007-12-26 | 2007-12-26 | Diesel high pressure oil pump timing transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129212Y true CN201129212Y (en) | 2008-10-08 |
Family
ID=40017054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201875858U Expired - Fee Related CN201129212Y (en) | 2007-12-26 | 2007-12-26 | Diesel high pressure oil pump timing transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129212Y (en) |
-
2007
- 2007-12-26 CN CNU2007201875858U patent/CN201129212Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20131226 |