CN200978750Y - High pressure and superhigh pressure oil pump roller pin for diesel engine - Google Patents
High pressure and superhigh pressure oil pump roller pin for diesel engine Download PDFInfo
- Publication number
- CN200978750Y CN200978750Y CN 200620158461 CN200620158461U CN200978750Y CN 200978750 Y CN200978750 Y CN 200978750Y CN 200620158461 CN200620158461 CN 200620158461 CN 200620158461 U CN200620158461 U CN 200620158461U CN 200978750 Y CN200978750 Y CN 200978750Y
- Authority
- CN
- China
- Prior art keywords
- oil
- roller pin
- rolling wheel
- storage tank
- wheel pin
- 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 - Lifetime
Links
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract 5
- 239000012530 fluid Substances 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 38
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a rolling wheel pin belonging to the automobile element region employing the heavy-duty film lubrication bearing theory. An oil reservoir and a fluid oil channel comprising a radial hole and an angular hole are provided on the radial face along the cylinder motion direction around the rolling wheel pin, the opening of the channel faces the back of the loaded area of the rolling wheel pin. The utility model guides oil to the oil reservoir through the oil channel, the oil reservoir contains and distributes fluid oil, a power oil film is formed when the rolling wheel pin turns thereby changing the contacting shape, reducing abrasion and improving loading capability of the rolling wheel.
Description
Technical field
The utility model belongs to the components range of automobile, and a kind of novel diesel machine of bearing capacity that particularly is used for improving use for diesel engine high pressure and superpressure oil pump roller is with high pressure and superpressure oil pump roller pin.
Background technique
Along with the development of diesel technology, for Economy and the emission performance that improves diesel engine, fuel-injected high pressure and ultrahigh pressureization are the inevitable development directions of fuel oil supply system, and injection pressure has reached more than the 80MPa now.Along with the raising of injection pressure, the load of roller significantly improves in the Injection Pump, bearing capacity is had higher requirement, otherwise will cause serious faults such as mechanical wear, has a strong impact on the life-span of Injection Pump.Yet in traditional roller pin, there is not special lubricated and power oil film to form structure.
Summary of the invention
The purpose of this utility model is to provide a kind of novel diesel machine with high pressure and superpressure oil pump roller pin at the deficiencies in the prior art, it is characterized in that: be provided with oil storage tank and oil leab on roller pin, form the power oil film with this.
Described oil leab is intersected by a radial hole and an oblique hole to be formed.
Radial hole one end and the oblique Kong Yiduan of described oil leab communicate; And the other end of radial hole communicates with oil collecting hole above the tappet body.
The other end and the oil storage tank in the oblique hole of described oil leab communicate.
Described oil storage tank is positioned at axial neutral position on roller pin and the roller fitting surface.
Described oil storage tank is conical, and the degree of depth is 1～3 times of oblique bore dia.
Described oil leab and oil storage tank are in along on the sagittal plane of tappet body moving direction, and its opening is towards the back side of roller pin supporting plane.
The beneficial effects of the utility model are by oil duct lubricant oil to be guided in the oil storage tank, oil storage tank holds and distribution lubricant oil, when roller pin rotates, form the power oil film, changed the contact form, improved wearing and tearing, improved the bearing capacity of roller greatly.
Description of drawings
Fig. 1 is the structural representation of roller pin.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the assembling schematic representation of roller pin.
Embodiment
The utility model provides a kind of roller pin.In roller pin structural representation shown in Figure 1, along the oil leab that is provided with oil storage tank 3 and radial hole 1, oblique hole 2 compositions on the sagittal plane of tappet body 7 moving direction, its opening is towards the back side of the supporting plane 8 of roller pin 4 at roller pin 4.One end of its radial hole 1 and an end in oblique hole 2 communicate.And the other end in oblique hole 2 and oil storage tank 3 communicate.Oil collecting hole 8 above the other end of radial hole 1 and the tappet body 7 communicates (as shown in Figure 3); Oil storage tank 3 is positioned at axial neutral position on roller pin 4 and roller 5 fitting surfaces, is taper shape, and the degree of depth is 1～3 times (as shown in Figure 2) of oblique hole 2 diameters.
The effect of the oil leab that above-mentioned radial hole 1, oblique hole 2 are formed is that oil is guided in the oil storage tank 3, and the effect of oil storage tank 3 is to hold and distribution lubricant oil, forms the power oil film when roller pin 4 rotates.
Described oil leab is made up of a radial hole and an oblique hole.
Radial hole one end and the oblique Kong Yiduan of described oil leab communicate.
The other end and the oil storage tank in the oblique hole of described oil leab communicate.
Claims (4)
1. a roller pin is characterized in that, is provided with oil storage tank and oil leab on roller pin.
2. according to the described roller pin of claim 1, it is characterized in that described oil leab is made up of a radial hole and an oblique hole.
3. according to the described roller pin of claim 1, it is characterized in that described oil storage tank is positioned at axial neutral position on roller pin and the roller fitting surface.
4. according to the described roller pin of claim 1, it is characterized in that described oil leab and oil storage tank are in along on the sagittal plane of tappet body moving direction, its opening is towards the back side of the supporting plane of roller pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158461 CN200978750Y (en) | 2006-11-14 | 2006-11-14 | High pressure and superhigh pressure oil pump roller pin for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158461 CN200978750Y (en) | 2006-11-14 | 2006-11-14 | High pressure and superhigh pressure oil pump roller pin for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200978750Y true CN200978750Y (en) | 2007-11-21 |
Family
ID=38979128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620158461 Expired - Lifetime CN200978750Y (en) | 2006-11-14 | 2006-11-14 | High pressure and superhigh pressure oil pump roller pin for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200978750Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958879A (en) * | 2011-11-29 | 2014-07-30 | 卡特彼勒公司 | Thrust lubrication strategy for roller lifters of a common rail fuel pump |
| CN113931772A (en) * | 2021-11-09 | 2022-01-14 | 无锡锡州机械有限公司 | Tappet body part with long service life for high pressure common rail |
-
2006
- 2006-11-14 CN CN 200620158461 patent/CN200978750Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103958879A (en) * | 2011-11-29 | 2014-07-30 | 卡特彼勒公司 | Thrust lubrication strategy for roller lifters of a common rail fuel pump |
| CN103958879B (en) * | 2011-11-29 | 2016-08-17 | 卡特彼勒公司 | Thrust lubrication strategies for the roller lifter of common rail fuel pump |
| CN113931772A (en) * | 2021-11-09 | 2022-01-14 | 无锡锡州机械有限公司 | Tappet body part with long service life for high pressure common rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071121 |
|
| EXPY | Termination of patent right or utility model |