CN220059773U - Self-lubricating type oil nozzle structure of diesel engine - Google Patents
Self-lubricating type oil nozzle structure of diesel engine Download PDFInfo
- Publication number
- CN220059773U CN220059773U CN202321605875.5U CN202321605875U CN220059773U CN 220059773 U CN220059773 U CN 220059773U CN 202321605875 U CN202321605875 U CN 202321605875U CN 220059773 U CN220059773 U CN 220059773U
- Authority
- CN
- China
- Prior art keywords
- oil
- fixedly connected
- pressure
- self
- needle valve
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 210000002445 nipple Anatomy 0.000 claims 5
- 239000003921 oil Substances 0.000 abstract description 116
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 description 43
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to the technical field of a nozzle tip structure, and discloses a self-lubricating nozzle tip structure of a diesel engine, which comprises a shell, wherein an oil delivery seat is fixedly connected to the side wall of the shell, an oil delivery hole is formed in the oil delivery seat, a high-pressure oil duct is formed in the shell and communicated with the oil delivery hole, an oil cavity is formed in the shell and communicated with the high-pressure oil duct, a limiting block is arranged at the top of the oil cavity, a movable groove is formed in the bottom of the limiting block and communicated with the oil cavity, a pressure relief opening is formed in the limiting block, a connecting sheet is arranged at the top of the limiting block and contacted with the top of the limiting block, a connecting rod is fixedly connected to the bottom of the connecting sheet and arranged in the pressure relief opening; the self-lubricating oil nozzle can be used for self-lubricating the oil nozzle, avoiding excessive friction among all parts in the oil nozzle and prolonging the service life of the oil nozzle.
Description
Technical Field
The utility model relates to the technical field of oil nozzles, in particular to a self-lubricating oil nozzle structure of a diesel engine.
Background
The oil nozzle is a core component of the diesel engine, and the working performance of the oil nozzle directly influences the spraying effect of diesel oil, thereby influencing the dynamic property, the economical efficiency and the use reliability of the diesel engine. Because the oil nozzle works in a high-temperature and high-pressure environment for a long time, and is impacted by the high frequency of the needle valve and the high-pressure fuel oil in the working process, the service environment is bad, and the needle valve coupling piece is required to have wear resistance, corrosion resistance and dimensional stability.
The existing diesel engine glib, in the use, the inside needle valve spring and structures such as the disk seat can produce friction and collision, need lubricate the inner structure of the glib under the long-term use to reduce the friction between the glib inner structure, thus reduce the loss of part, the existing glib can't lubricate oneself mostly, lubricate it more complicated when using, inconvenient operation.
Therefore, it is necessary to provide a self-lubricating type oil nozzle structure of a diesel engine to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide a self-lubricating type oil nozzle structure of a diesel engine, which has the effects of completing self-lubrication of the oil nozzle, avoiding excessive friction between all parts in the oil nozzle and prolonging the service life of the oil nozzle.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a diesel engine self-lubricating type glib structure, includes the casing, fixedly connected with oil delivery seat on the lateral wall of casing, the oil delivery hole has been seted up on the oil delivery seat, the high-pressure oil duct has been seted up to the inside of casing, the high-pressure oil duct with the oil delivery hole is linked together, the oil pocket has been seted up to the inside of casing, the oil pocket with the high-pressure oil duct is linked together, the top of oil pocket is provided with the stopper, the movable groove has been seted up to the bottom of stopper, the movable groove with the oil pocket is linked together, the relief pressure mouth has been seted up to the inside of stopper, the top of stopper is provided with the connection piece, the bottom of connection piece with the top of stopper contacts, the bottom fixedly connected with connecting rod of connection piece, the connecting rod sets up the inside of relief pressure mouth, the external diameter of connecting rod is less than the internal diameter of relief pressure mouth, the bottom fixedly connected with needle valve rod, the external diameter of the top of needle valve rod is less than the internal diameter of movable groove, the upper portion of valve rod is provided with first conical surface, the lower part of stopper is provided with the movable groove, the movable groove with the connection piece, the top of needle valve seat is provided with the inside of the spring, the valve seat is fixed connection, the inside the valve seat is in the inside of the valve seat.
Through adopting above-mentioned technical scheme, accomplished the self-lubricating to the glib through this device, avoided too much friction between inside each position of glib, increase glib life.
The utility model is further provided with: the bottom fixedly connected with needle valve point of needle valve rod, the bottom fixedly connected with shell mouth of casing, a plurality of fuel sprayer have been seted up on the shell mouth, needle valve point with shell mouth looks adaptation.
Through adopting above-mentioned technical scheme, when the needle valve rod is jacked under the pressure of high-pressure diesel oil, drive needle valve point and shift up, expose the nozzle orifice, the high-pressure diesel oil in the oil pocket is through the nozzle orifice blowout.
The utility model is further provided with: and a one-way valve is fixedly arranged in the oil delivery hole.
By adopting the technical scheme, the high-pressure diesel oil is prevented from flowing back into the oil delivery hole.
The utility model is further provided with: the top fixedly connected with of disk seat leads oil pipe, lead oil pipe with the disk seat is inside to be linked together.
By adopting the technical scheme, diesel oil in the valve seat is led out through the oil guide pipe.
The utility model is further provided with: the top fixedly connected with connecting pipe of leading oil pipe, lead oil pipe with the connecting pipe is linked together, the top fixedly connected with installation nut of connecting pipe, set up the screw thread groove on the installation nut, installation nut with the connecting pipe is linked together.
Through adopting above-mentioned technical scheme, installation nut and oil tank pipeline pass through thread groove threaded connection for the diesel oil that the weak point was lubricated inside the casing enters into the connecting pipe through leading oil pipe, finally gets back into in the oil tank.
The utility model is further provided with: and a sealing gasket is fixedly arranged at the bottom of the mounting nut.
By adopting the technical scheme, the tightness of the mounting nut is reinforced through the sealing gasket, so that diesel oil leakage is prevented.
In summary, the utility model has the following beneficial effects: when the oil nozzle is used, high-pressure diesel oil enters the high-pressure oil channel through the oil delivery hole on the oil delivery seat, the high-pressure diesel oil enters the oil cavity through the high-pressure oil channel, most of the high-pressure diesel oil entering the oil cavity is left in the oil cavity, the other part of the high-pressure diesel oil enters the pressure relief opening through the gap between the needle valve rod and the movable groove, the diesel oil in the pressure relief opening generates certain pressure on the connecting piece, the first conical surface and the second conical surface on the needle valve rod of the high-pressure diesel oil entering the oil cavity exert pressure, the connecting piece is jacked up under the pressure of the high-pressure diesel oil, the spring is extruded and contracted, the diesel oil enters the valve seat through the gap generated between the connecting piece and the limiting block, finally, the diesel oil enters all parts inside the shell, the parts inside the oil nozzle are lubricated, the self-lubrication of the oil nozzle is completed through the device, excessive friction loss among all parts inside the oil nozzle is avoided, and the service life of the oil nozzle is prolonged.
Drawings
FIG. 1 is a schematic three-dimensional structure of the present utility model;
FIG. 2 is a schematic view of a three-dimensional structure from another perspective of the present utility model;
FIG. 3 is a schematic view of the structure of the needle valve stem, needle tip and connecting rod of the present utility model;
FIG. 4 is a schematic cross-sectional front view of the internal structure of the present utility model;
FIG. 5 is a schematic view of the internal structure of the present utility model;
FIG. 6 is an enlarged schematic view of the structure of FIG. 4A according to the present utility model;
fig. 7 is an enlarged schematic view of the structure of fig. 4B according to the present utility model.
In the figure: 1. a housing; 2. an oil delivery seat; 3. an oil delivery hole; 4. a one-way valve; 5. a high-pressure oil passage; 6. an oil chamber; 7. a movable groove; 8. a pressure relief port; 9. a valve seat; 10. an oil guide pipe; 11. a needle valve rod; 12. a first conical surface; 13. a second conical surface; 14. a connecting rod; 15. a connecting sheet; 16. needle valve tip; 17. a limiting block; 18. a spring; 19. a connecting pipe; 20. installing a nut; 21. a thread groove; 22. a sealing gasket; 23. a shell mouth; 24. and an oil injection hole.
Detailed Description
The present utility model will be further described with reference to the drawings in the embodiments of the present utility model.
Referring to fig. 1-7, in the embodiment of the utility model, a self-lubricating type oil nozzle structure of a diesel engine comprises a shell 1, an oil delivery seat 2 is fixedly connected to the side wall of the shell 1, an oil delivery hole 3 is formed in the oil delivery seat 2, a high-pressure oil channel 5 is formed in the shell 1, the high-pressure oil channel 5 is communicated with the oil delivery hole 3, an oil cavity 6 is formed in the shell 1, the oil cavity 6 is communicated with the high-pressure oil channel 5, a limiting block 17 is arranged at the top of the oil cavity 6, a movable groove 7 is formed in the bottom of the limiting block 17, the movable groove 7 is communicated with the oil cavity 6, a pressure relief opening 8 is formed in the interior of the limiting block 17, a connecting piece 15 is arranged at the top of the limiting block 17, the bottom of the connecting piece 15 is contacted with the top of the limiting block 17, a connecting rod 14 is fixedly connected to the bottom of the connecting piece 15, the connecting rod 14 is arranged in the interior of the pressure relief opening 8, the outer diameter of the connecting rod 14 is smaller than the inner diameter of the pressure relief opening 8, the bottom of the connecting rod 6 is fixedly connected with a movable groove 7, the bottom of the connecting rod 11 is fixedly connected with the needle seat 9, the needle seat 9 is fixedly arranged at the top of the needle seat 9, the needle seat 9 is fixedly connected with the needle seat 9, and the needle seat 9 is fixedly connected with the needle seat 9; when the oil nozzle is used, high-pressure diesel oil enters the high-pressure oil channel 5 through the oil delivery hole 3 on the oil delivery seat 2, the high-pressure diesel oil enters the oil cavity 6 through the high-pressure oil channel 5, most of the high-pressure diesel oil entering the oil cavity 6 is left in the oil cavity 6, the other part of the high-pressure diesel oil enters the pressure relief opening 8 through a gap between the needle valve rod 11 and the movable groove 7, the diesel oil in the pressure relief opening 8 generates certain pressure on the connecting sheet 15, the high-pressure diesel oil entering the oil cavity 6 exerts pressure on the first conical surface 12 and the second conical surface 13 on the needle valve rod 11, the connecting sheet 15 is jacked up under the pressure of the high-pressure diesel oil, the spring 18 is extruded and contracted, the diesel oil enters the valve seat 9 through gaps generated between the connecting sheet 15 and the limiting block 17, and finally the diesel oil enters all parts inside the shell 1 to lubricate all parts inside the oil nozzle, the self-lubrication of the oil nozzle is completed through the device, excessive friction between all parts inside the oil nozzle is avoided, and the service life of the oil nozzle is prolonged.
In this embodiment, preferably, the bottom end of the needle valve rod 11 is fixedly connected with a needle valve tip 16, the bottom end of the housing 1 is fixedly connected with a housing nozzle 23, the housing nozzle 23 is provided with a plurality of oil injection holes 24, and the needle valve tip 16 is adapted to the housing nozzle 23; when the needle valve rod 11 is jacked up under the pressure of high-pressure diesel oil, the needle valve tip 16 is driven to move upwards, the oil injection hole 24 is exposed, and the high-pressure diesel oil in the oil cavity 6 is sprayed out through the oil injection hole 24.
In this embodiment, preferably, a check valve 4 is fixedly installed in the oil delivery hole 3, and the check valve 4 only allows high-pressure diesel oil to enter the high-pressure oil channel 5, and does not allow the high-pressure diesel oil in the high-pressure oil channel 5 of the high-pressure diesel oil tank to enter the oil delivery hole 3 through the check valve 4; the high-pressure diesel oil is prevented from flowing back into the oil delivery hole 3.
In this embodiment, preferably, an oil conduit 10 is fixedly connected to the top of the valve seat 9, and the oil conduit 10 is communicated with the interior of the valve seat 9; diesel oil inside the valve seat 9 is led out through an oil guide pipe 10.
In this embodiment, preferably, a connection pipe 19 is fixedly connected to the top end of the oil pipe 10, the oil pipe 10 is communicated with the connection pipe 19, a mounting nut 20 is fixedly connected to the top end of the connection pipe 19, a threaded groove 21 is formed in the mounting nut 20, and the mounting nut 20 is communicated with the connection pipe 19; the mounting nut 20 is screwed with the tank pipe by means of a screw groove 21 so that a small part of the diesel oil lubricating the interior of the housing 1 enters the connecting pipe 19 through the oil conduit 10 and finally returns to the tank.
In this embodiment, preferably, a sealing pad 22 is fixedly installed at the bottom of the mounting nut 20; the sealing property of the mounting nut 20 is reinforced by the gasket 22, and diesel oil leakage is prevented.
Working principle: when the oil nozzle is used, high-pressure diesel oil enters the high-pressure oil channel 5 through the oil delivery hole 3 on the oil delivery seat 2, the high-pressure diesel oil enters the oil cavity 6 through the high-pressure oil channel 5, most of the high-pressure diesel oil entering the oil cavity 6 is left in the oil cavity 6, the other part of the high-pressure diesel oil enters the pressure relief opening 8 through a gap between the needle valve rod 11 and the movable groove 7, the diesel oil in the pressure relief opening 8 generates certain pressure on the connecting sheet 15, the high-pressure diesel oil entering the oil cavity 6 exerts pressure on the first conical surface 12 and the second conical surface 13 on the needle valve rod 11, the connecting sheet 15 is jacked up under the pressure of the high-pressure diesel oil, the spring 18 is extruded and contracted, the diesel oil enters the valve seat 9 through gaps generated between the connecting sheet 15 and the limiting block 17, and finally the diesel oil enters all parts inside the shell 1 to lubricate all parts inside the oil nozzle, the self-lubrication of the oil nozzle is completed through the device, excessive friction between all parts inside the oil nozzle is avoided, and the service life of the oil nozzle is prolonged.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides a diesel engine self-lubricating type glib structure, includes casing (1), its characterized in that: the oil delivery seat (2) is fixedly connected to the side wall of the shell (1), the oil delivery seat (2) is provided with the oil delivery hole (3), the high-pressure oil duct (5) is arranged in the shell (1), the high-pressure oil duct (5) is communicated with the oil delivery hole (3), the oil cavity (6) is arranged in the shell (1), the oil cavity (6) is communicated with the high-pressure oil duct (5), the top of the oil cavity (6) is provided with the limiting block (17), the bottom of the limiting block (17) is provided with the movable groove (7), the movable groove (7) is communicated with the oil cavity (6), the inside of the limiting block (17) is provided with the pressure relief opening (8), the top of the limiting block (17) is provided with the connecting sheet (15), the bottom of the connecting sheet (15) is in contact with the top of the limiting block (17), the bottom of the connecting sheet (15) is fixedly connected with the connecting rod (14), the connecting rod (14) is arranged in the inside of the pressure relief opening (8), the bottom of the connecting rod (14) is smaller than the inner diameter of the needle valve rod (11) and the inner diameter of the needle valve rod (7) is smaller than the outer diameter of the needle valve rod (11), the upper portion of needle valve rod (11) is provided with first conical surface (12), the lower part of needle valve rod (11) is provided with second conical surface (13), the top fixedly connected with spring (18) of connection piece (15), the top fixedly connected with disk seat (9) of spring (18), disk seat (9) fixedly connected with is in the inside of casing (1), spring (18) set up the inside of disk seat (9), the external diameter of connection piece (15) is less than the internal diameter of disk seat (9).
2. The self-lubricating nipple structure of a diesel engine according to claim 1, characterized in that: the bottom end fixedly connected with needle valve point (16) of needle valve rod (11), the bottom fixedly connected with shell mouth (23) of casing (1), a plurality of fuel sprayer (24) have been seted up on shell mouth (23), needle valve point (16) with shell mouth (23) looks adaptation.
3. The self-lubricating nipple structure of a diesel engine according to claim 2, characterized in that: the inside of the oil delivery hole (3) is fixedly provided with a one-way valve (4).
4. The self-lubricating nipple structure of a diesel engine according to claim 2, characterized in that: the top of disk seat (9) fixedly connected with leads oil pipe (10), lead oil pipe (10) with disk seat (9) inside is linked together.
5. The self-lubricating nipple structure of a diesel engine according to claim 4, wherein: the top fixedly connected with connecting pipe (19) of leading oil pipe (10), lead oil pipe (10) with connecting pipe (19) are linked together, the top fixedly connected with installation nut (20) of connecting pipe (19), set up thread groove (21) on installation nut (20), installation nut (20) with connecting pipe (19) are linked together.
6. The self-lubricating nipple structure of a diesel engine according to claim 5, wherein: the bottom of the mounting nut (20) is fixedly provided with a sealing gasket (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321605875.5U CN220059773U (en) | 2023-06-25 | 2023-06-25 | Self-lubricating type oil nozzle structure of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321605875.5U CN220059773U (en) | 2023-06-25 | 2023-06-25 | Self-lubricating type oil nozzle structure of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059773U true CN220059773U (en) | 2023-11-21 |
Family
ID=88762971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321605875.5U Active CN220059773U (en) | 2023-06-25 | 2023-06-25 | Self-lubricating type oil nozzle structure of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059773U (en) |
-
2023
- 2023-06-25 CN CN202321605875.5U patent/CN220059773U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202301001U (en) | Sealing and lubricating structure of plunger of ultrahigh-pressure plunger pump | |
| CN220059773U (en) | Self-lubricating type oil nozzle structure of diesel engine | |
| CN216110572U (en) | Rotary joint of manifold device | |
| CN102287367B (en) | Sealing lubrication structure for plunger of ultrahigh pressure plunger pump | |
| CN206093470U (en) | Quantitive oiling machine | |
| WO2020098180A1 (en) | Plunger device and internal combustion engine | |
| CN214499391U (en) | Hydraulic end assembly for reciprocating plunger pump | |
| CN212690953U (en) | Valve seat capable of realizing moderate pressure relief after long-time high-pressure environment work | |
| CN109027205B (en) | Lubricating oil distributor structure | |
| CN210106547U (en) | Active lubrication valve of double-clutch transmission | |
| US20120048237A1 (en) | Fuel pressure regulator | |
| CN208441951U (en) | A kind of diesel engine pluralities of fuel fuel injector structure | |
| CN201723397U (en) | Micro high-pressure oilless plunger atomizing pump | |
| CN206093075U (en) | Oil filler hole check valve assembly | |
| CN216714502U (en) | Oil circuit oil spout structure for lubricating system | |
| CN220061407U (en) | Detection type positive displacement dispenser | |
| CN219587686U (en) | High-flow common rail oil sprayer control valve | |
| CN209430300U (en) | A kind of piston pin | |
| CN219865271U (en) | Carburetor capable of preventing oil leakage | |
| CN215256540U (en) | Low pressure assembly and fuel injection system | |
| CN214366487U (en) | High-performance plunger and barrel assembly of injection pump | |
| CN215256552U (en) | Self-lubricating bypass valve | |
| CN217538890U (en) | High-power diesel engine fuel injection pump | |
| CN220930815U (en) | Lubricating oil supplementing device for motor bearing chamber | |
| CN213039369U (en) | Piston easy to lubricate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |