CN211901513U - Marine high-pressure oil pump transmission device - Google Patents
Marine high-pressure oil pump transmission device Download PDFInfo
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- CN211901513U CN211901513U CN202020624110.6U CN202020624110U CN211901513U CN 211901513 U CN211901513 U CN 211901513U CN 202020624110 U CN202020624110 U CN 202020624110U CN 211901513 U CN211901513 U CN 211901513U
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- bearing
- oil pump
- pressure oil
- drive
- shaft
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Abstract
The utility model discloses mainly used diesel engine high pressure oil pump transmission shaft is relevant supports, lubricated and sealed technical field, in particular to marine high pressure oil pump transmission, including the drive shaft, install drive gear in the drive shaft, drive gear one side sets up the bearing, sets up two slide bearings between bearing and the drive shaft, sets up the thrust piece between bearing the inner and the drive gear, and the thrust piece is installed in the drive shaft, sets up the oil blanket between bearing outer end and the drive shaft, and the drive shaft free end sets up the connection key. The utility model discloses a two sliding bearing support at drive gear homonymy, and the drive end has the thrust piece, and the free end sets up the oil blanket, has realized improving marine diesel engine high pressure oil pump drive gear drive mechanism's reliability, has improved the installation accuracy of transmission shaft, and has reduced the processing degree of difficulty of relevant bearing part gear box.
Description
Technical Field
The utility model relates to a marine high-pressure oil pump transmission, the relevant support of mainly used diesel engine high-pressure oil pump transmission shaft, lubrication and sealed technical field.
Background
The driving force of the combined high-pressure pump of the marine diesel engine is generally provided by a crankshaft, transmitted to a driving gear of the high-pressure oil pump through an idler gear, transmitted to a steel sheet coupling through a shaft of the driving gear, and transmitted to an input flange of the combined high-pressure oil pump through the steel sheet coupling.
The support of the high-pressure oil pump driving gear usually adopts a form that a double rolling bearing driving gear is arranged on two sides. The transmission mechanism of this form has low reliability, and is liable to fail due to the low tolerance of the rolling bearing to impurities in the lubricating oil. The mounting holes of this form of bearing are on both sides of the drive gear. The coaxiality precision of the installation is ensured, and the gear box wall and the bearing installation hole of the gear box cover plate are processed simultaneously after the gear box wall and the gear box cover plate are fastened by bolts and provided with positioning pins. The processing difficulty is improved, and the cover plate of the gear box is not used and can be exchanged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the marine high-pressure oil pump transmission device can improve the reliability of a high-pressure oil pump driving gear transmission mechanism of a marine diesel engine, improve the installation precision of a transmission shaft and reduce the processing difficulty of a related support piece gear box.
Marine high pressure oil pump transmission, including the drive shaft, install drive gear in the drive shaft, drive gear one side sets up the bearing, sets up two slide bearings between bearing and the drive shaft, sets up the thrust piece between bearing inner and the drive gear, the thrust piece is installed in the drive shaft, sets up the oil blanket between bearing outer end and the drive shaft, the drive shaft free end sets up the connection key.
The driving gear is installed at the driving end of the driving shaft, one end close to the driving gear is the inner end of the supporting seat, and one end close to the free end of the driving shaft is the outer end of the supporting seat.
The thrust plate and the supporting seat are fastened through bolts.
The supporting seat comprises a shell, two supporting sections are arranged in the shell, sliding bearings are respectively arranged between the two supporting sections and the driving shaft, and a thrust plate is arranged between the supporting section close to the end of the driving gear and the driving gear.
The connecting key adopts a flat key. The flat key is used for connecting the driving shaft and the input end of the high-pressure pump.
The driving shaft is provided with a positioning bulge corresponding to the thrust plate, two shaft necks corresponding to the two sliding bearings are respectively arranged, and the two sliding bearings are respectively arranged on the shaft necks through the bearing bushes.
And the supporting seat is provided with lubricating oil channels corresponding to the two sliding bearings respectively.
At first, the utility model discloses use unilateral to support, and adopt two sliding bearing to support, compare drive gear both sides supporting, because unilateral supports no longer need the support of gearbox cover to avoided gear box and apron simultaneous processing supporting hole, consequently reduced the processing degree of difficulty of gear box and gear box apron. Compared with single bearing support, the reliability of the transmission mechanism of the moving gear is improved.
Secondly, the utility model discloses use a slide bearing's support form, support the high-pressure oil pump drive shaft through two axle bushes, compare antifriction bearing, the slide bearing alloy-layer is softer, contains the effect of holding by the embedding to stereoplasm impurity, and impurity's tolerance dynamic height in the lubricating oil, therefore slide bearing reliability is higher.
Thirdly, through using the thrust plate for the high-pressure oil pump drive shaft axial is only the micro-motion, and the condition that the high-pressure oil pump drive shaft and drive gear installation process can not appear droing.
The utility model has the advantages that:
the utility model discloses a two sliding bearing support at drive gear homonymy, and the drive end has the thrust piece, and the free end sets up the oil blanket, has realized improving marine diesel engine high pressure oil pump drive gear drive mechanism's reliability, has improved the installation accuracy of transmission shaft, and has reduced the processing degree of difficulty of relevant bearing part gear box.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a drive shaft; 2. a connecting bond; 3. oil sealing; 4. a sliding bearing; 5. a supporting seat; 6. a thrust plate; 7. the gears are driven.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1, marine high pressure oil pump transmission, including drive shaft 1, install drive gear 7 on the drive shaft 1, drive gear 7 one side sets up bearing 5, sets up two slide bearings 4 between bearing 5 and the drive shaft 1, sets up thrust plate 6 between 5 inner of bearing and the drive gear 7, thrust plate 6 installs on drive shaft 1, sets up oil blanket 3 between 5 outer ends of bearing and the drive shaft 1, and drive shaft 1 free end sets up connecting key 2. The thrust plate 6 and the support base 5 are fastened by bolts. The supporting seat 5 comprises two supporting sections, and sliding bearings 4 are respectively arranged between the two supporting sections and the driving shaft 1. The connecting key 2 adopts a flat key. The driving shaft 1 is provided with a positioning bulge corresponding to the thrust plate 6, two shaft necks corresponding to the two sliding bearings 4 are respectively arranged, and the two sliding bearings 4 are respectively arranged on the shaft necks through the bearing bushes. The bearing seat 5 is provided with a lubricating oil channel corresponding to the two sliding bearings 4 respectively.
At first, the utility model discloses use unilateral to support, and adopt two sliding bearing to support, compare drive gear both sides supporting, because unilateral supports no longer need the support of gearbox cover to avoided gear box and apron simultaneous processing supporting hole, consequently reduced the processing degree of difficulty of gear box and gear box apron. Compared with single bearing support, the reliability of the transmission mechanism of the moving gear is improved. Secondly, the utility model discloses use a slide bearing's support form, support the high-pressure oil pump drive shaft through two axle bushes, compare antifriction bearing, the slide bearing alloy-layer is softer, contains the effect of holding by the embedding to stereoplasm impurity, and impurity's tolerance dynamic height in the lubricating oil, therefore slide bearing reliability is higher. Thirdly, through using thrust plate 6 for high-pressure oil pump drive shaft axial is only the trace drunkenness, and the condition that drops can not appear in high-pressure oil pump drive shaft and drive gear installation process.
When the combined high-pressure oil pump works, the crankshaft provides driving force, the driving force is transmitted to the high-pressure oil pump driving gear 7 through the idle gear, the driving gear 7 is installed on the driving shaft 1, transmitted to the steel sheet coupling through the connecting key 2 of the driving shaft 1 and transmitted to the input flange of the combined high-pressure oil pump through the steel sheet coupling.
Claims (6)
1. A marine high-pressure oil pump transmission device is characterized in that: the novel driving device comprises a driving shaft (1), wherein a driving gear (7) is installed on the driving shaft (1), a supporting seat (5) is arranged on one side of the driving gear (7), two sliding bearings (4) are arranged between the supporting seat (5) and the driving shaft (1), a thrust plate (6) is arranged between the inner end of the supporting seat (5) and the driving gear (7), the thrust plate (6) is installed on the driving shaft (1), an oil seal (3) is arranged between the outer end of the supporting seat (5) and the driving shaft (1), and a connecting key (2) is arranged at the free end of the.
2. The marine high pressure oil pump transmission of claim 1, wherein: the thrust plate (6) and the supporting seat (5) are fastened through bolts.
3. The marine high pressure oil pump transmission of claim 1, wherein: the bearing (5) comprises a shell, two bearing sections are arranged in the shell, sliding bearings (4) are respectively arranged between the two bearing sections and the driving shaft (1), and a thrust plate (6) is arranged between the bearing section close to the end of the driving gear (7) and the driving gear (7).
4. The marine high pressure oil pump transmission of claim 1, wherein: the connecting key (2) adopts a flat key.
5. The marine high pressure oil pump transmission of claim 1, wherein: the driving shaft (1) is provided with a positioning bulge corresponding to the thrust plate (6), two shaft necks corresponding to the two sliding bearings (4) are respectively arranged, and the two sliding bearings (4) are respectively arranged on the shaft necks through the bearing bushes.
6. The marine high pressure oil pump transmission of claim 1, wherein: the bearing seat (5) is respectively provided with a lubricating oil channel corresponding to the two sliding bearings (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020624110.6U CN211901513U (en) | 2020-04-23 | 2020-04-23 | Marine high-pressure oil pump transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020624110.6U CN211901513U (en) | 2020-04-23 | 2020-04-23 | Marine high-pressure oil pump transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901513U true CN211901513U (en) | 2020-11-10 |
Family
ID=73276205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020624110.6U Active CN211901513U (en) | 2020-04-23 | 2020-04-23 | Marine high-pressure oil pump transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901513U (en) |
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2020
- 2020-04-23 CN CN202020624110.6U patent/CN211901513U/en active Active
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