CN201025197Y - A mandatory lubricant roller pole for high-pressure common-rail pump - Google Patents
A mandatory lubricant roller pole for high-pressure common-rail pump Download PDFInfo
- Publication number
- CN201025197Y CN201025197Y CNU2007200370697U CN200720037069U CN201025197Y CN 201025197 Y CN201025197 Y CN 201025197Y CN U2007200370697 U CNU2007200370697 U CN U2007200370697U CN 200720037069 U CN200720037069 U CN 200720037069U CN 201025197 Y CN201025197 Y CN 201025197Y
- Authority
- CN
- China
- Prior art keywords
- tappet
- roller
- ring recess
- breach
- common rail
- 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
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Abstract
The utility model provides a forced lubrication type roller post used for the high pressure common rail oil pump. According to the technical proposal provided by the utility model, the post is internally provided with a rotatable roller pin which is sleeved with a rotatable roller. The utility model is characterized in that the friction surface between the post and the pump body is provided with a ring groove, while the contact surface between the post body and the pump body is provided with a notch, and the ring groove is communicated with the notch. The lubricating oil firstly enters all the friction surfaces, and then is extruded out from the cooperation clearance by pressure and enters into the lubrication cavity, thereby effectively enhancing the lubrication effect.
Description
Technical field
The utility model relates to the roller tappet, specifically a kind of novel high-pressure forced lubrication type roller tappet of rail oil pump altogether that is used for.
Background technique
In-line arrangement high-pressure common rail oil pump all adopts cam and roller tappet driving mechanism, all is sliding friction between its pump housing and tappet body, tappet body and roller pin, roller pin and the roller.Lubricant oil is introduced into the axial lubricating cavity of cam, and the cam by rotation is thrown to lubricant oil on the tappet again, realizes lubricated by the matching gap engaging friction face between these slide relative parts.Because the lubricant oil that got rid of of cam does not have pressure, is difficult to enter in the matching gap, cause the rubbing surface lack of lubrication easily and burn.
Summary of the invention
The purpose of this utility model is to design a kind of forced lubrication type roller tappet that is used for high voltage common rail pump, there is the lubricant oil of pressure to be introduced into all rubbing surfaces, under pressure, from matching gap, extrude then, enter lubricating cavity again, thereby improved lubrication effect effectively.
The technological scheme that provides according to the utility model, rotary roller pin is arranged in the tappet body, the rotary roller of suit on the roller pin, it is characterized in that: on the friction surface between the tappet body and the pump housing, ring recess is set, between the surface of contact of the tappet body and the pump housing breach is set, ring recess is communicated with breach.
On the friction surface between tappet body and the roller pin, ring recess is set.On the friction surface between roller and the roller pin, ring recess is set.Ring recess and the breach that is arranged between the surface of contact of the tappet body and the pump housing are connected.Breach is connected with the oil input channel that is arranged on the pump housing.A plurality of tappet bodies are installed on the pump housing side by side, on the pump housing between adjacent two tappet bodies oil input channel are set, breach is communicated with oil input channel.
On the tappet body, be provided for linking up the oil inlet hole of breach and roller pin.On the tappet body bearing hole is set, the end of roller pin embeds in the bearing hole, and inclined hole is set on roller pin, and this inclined hole is communicated with ring recess.
The advantage of this structure is: all rubbing surfaces all have ring recess to communicate with the lubricant oil that pressure is arranged, and rubbing surface is directly lubricated.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
1, camshaft, 2, roller pin, 3, roller, 4, the tappet body, 5, oil input channel, 6, the pump housing, 7, breach, 8, oil inlet hole, 9, ring recess, 10, ring recess, 11, ring recess, 12, ring recess, 13, inclined hole, 15, bearing hole.
Embodiment
As shown in the figure: rotary roller pin 2 is arranged in tappet body 4, and the rotary roller 3 of suit is provided with ring recess 12 on the roller pin 2 on the friction surface between the tappet body 4 and the pump housing 6, on the friction surface between tappet body 4 and the roller pin 2 ring recess is set. Ring recess 9,10,11 is set on the friction surface between roller 3 and the roller pin 2.Between the surface of contact of the tappet body 4 and the pump housing 6 breach 7 is set, ring recess 12 is communicated with breach 7.Breach 7 is connected with the oil input channel 5 that is arranged on the pump housing 6.
Two tappet bodies 4 are installed on the pump housing 6 side by side, on the pump housing 6 of 4 of two tappet bodies oil input channel 5 are set, breach 7 is communicated with oil input channel 5.On tappet body 4, be provided for linking up the oil inlet hole 8 of breach 7 and roller pin 2.Bearing hole 15 is set on tappet body 4, and the end of roller pin 2 embeds in the bearing hole 15, and inclined hole 13 is set on roller pin 2, and this inclined hole 13 is communicated with ring recess.
Tappet is made up of roller pin 2, roller 3 and tappet body 4.Two tappets are contained in the tappet hole on the pump housing 6, are seated on the camshaft 1.
During work, camshaft 1 drives two tappets and moves up and down, and the cylindrical of roller 3 rolls on camshaft 1, and the endoporus of roller 3 rotates on roller pin 2, and roller pin 2 rotates in the hole of tappet body 4.In tappet moves up and down process, breach 7 on the tappet body 4 all the time with the pump housing 6 on oil input channel 5 connect, the lubricant oil that pressure is arranged that the engine lubrication pump is provided is introduced ring recess 12 and the ring recess on the roller pin 29,10,11 on the tappet body 4, lubricant oil in the ring recess 12 is lubricated the friction surface between the tappet body 4 and the pump housing 6, friction surface between the ring recess 9 and the 11 pairs of tappet bodies 4 and the roller pin 2 is lubricated, and the friction surface between ring recess 10 pair roller pins 2 and the roller 3 is lubricated.Lubricant oil between all friction surfaces is extruded matching gap under pressure and is fallen into camshaft 1 lubricating cavity on every side return engine again.
Claims (8)
1. forced lubrication type roller tappet that is used for the high-pressure common rail oil pump, rotary roller pin (2) is arranged in tappet body (4), roller pin (2) is gone up the rotary roller of suit (3), it is characterized in that: on the friction surface between the tappet body (4) and the pump housing (6), ring recess is set, between the surface of contact of the tappet body (4) and the pump housing (6) breach (7) is set, ring recess is communicated with breach (7).
2. be used for the forced lubrication type roller tappet of high voltage common rail pump according to claim 1, it is characterized in that: on the friction surface between tappet body (4) and the roller pin (2), ring recess is set.
3. be used for the forced lubrication type roller tappet of high voltage common rail pump according to claim 1, it is characterized in that: on the friction surface between roller (3) and the roller pin (2), ring recess is set.
4. as being used for the forced lubrication type roller tappet of high voltage common rail pump as described in claim 2 or 3, it is characterized in that: ring recess and be arranged at tappet body (4) and the surface of contact of the pump housing (6) between breach (7) connect.
5. be used for the forced lubrication type roller tappet of high voltage common rail pump according to claim 1, it is characterized in that: breach (7) is connected with the oil input channel (5) that is arranged on the pump housing (6).
6. the forced lubrication type roller tappet that is used for high voltage common rail pump according to claim 1, it is characterized in that: go up at the pump housing (6) a plurality of tappet bodies (4) are installed side by side, on the pump housing (6) between adjacent two tappet bodies (4) oil input channel (5) is set, breach (7) is communicated with oil input channel (5).
7. be used for the forced lubrication type roller tappet of high voltage common rail pump according to claim 1, it is characterized in that: the oil inlet hole (8) that on tappet body (4), is provided for linking up breach (7) and roller pin (2).
8. the forced lubrication type roller tappet that is used for high voltage common rail pump according to claim 1, it is characterized in that: bearing hole (15) is set on tappet body (4), the end of roller pin (2) embeds in the bearing hole (15), and inclined hole (13) is set on roller pin (2), and this inclined hole (13) is communicated with ring recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200370697U CN201025197Y (en) | 2007-04-23 | 2007-04-23 | A mandatory lubricant roller pole for high-pressure common-rail pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200370697U CN201025197Y (en) | 2007-04-23 | 2007-04-23 | A mandatory lubricant roller pole for high-pressure common-rail pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025197Y true CN201025197Y (en) | 2008-02-20 |
Family
ID=39099059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200370697U Expired - Lifetime CN201025197Y (en) | 2007-04-23 | 2007-04-23 | A mandatory lubricant roller pole for high-pressure common-rail pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025197Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047063A (en) * | 2013-01-10 | 2013-04-17 | 无锡开普机械有限公司 | Forced lubrication type roller lifter of high pressure common rail pump |
| CN102356228B (en) * | 2009-03-18 | 2014-07-09 | 罗伯特·博世有限公司 | High pressure pump and tappet assembly |
-
2007
- 2007-04-23 CN CNU2007200370697U patent/CN201025197Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356228B (en) * | 2009-03-18 | 2014-07-09 | 罗伯特·博世有限公司 | High pressure pump and tappet assembly |
| CN103047063A (en) * | 2013-01-10 | 2013-04-17 | 无锡开普机械有限公司 | Forced lubrication type roller lifter of high pressure common rail pump |
| WO2014107824A1 (en) * | 2013-01-10 | 2014-07-17 | 无锡开普机械有限公司 | Forced lubrication roller tappet of high-pressure common rail pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NONE WUXI WEIFU ADVANCED TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: NONE WUXI WEIFU GROUP CO.,LTD. Effective date: 20080530 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080530 Address after: No. 107, Renmin West Road, Beitang District, Jiangsu, Wuxi Province: 214031 Patentee after: Wuxi Weifu High-technology Co., Ltd. Address before: No. 107, Renmin West Road, Beitang District, Jiangsu, Wuxi Province: 214031 Patentee before: Wuxi Weifu Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: WUXI WEIFU HIGH-TECHNOLOGY CO., LTD. Free format text: FORMER NAME: WUXI WEIFU HIGH-TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 214028 No. 5, Huashan Road, New District, Jiangsu, Wuxi Patentee after: Wuxi Weifu High-Technology Co., Ltd. Address before: 214031 No. 107 Renmin West Road, Beitang District, Jiangsu, Wuxi Patentee before: Wuxi Weifu High-technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080220 |
|
| CX01 | Expiry of patent term |