CN102787875A - Engine camshaft with oil storage tank - Google Patents
Engine camshaft with oil storage tank Download PDFInfo
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- CN102787875A CN102787875A CN2012103030419A CN201210303041A CN102787875A CN 102787875 A CN102787875 A CN 102787875A CN 2012103030419 A CN2012103030419 A CN 2012103030419A CN 201210303041 A CN201210303041 A CN 201210303041A CN 102787875 A CN102787875 A CN 102787875A
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- camshaft
- storage tank
- oil storage
- oil
- engine
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Abstract
The invention relates to an engine camshaft with an oil storage tank, which belongs to shaft parts in the machinery industry. The engine camshaft with the oil storage tank comprises a camshaft, and the camshaft is installed with a cam, a high pressure oil pump cam and a signal disc. The camshaft is provided with double positioning shaft shoulders and is axially provided with a main oil duct. A shaft neck between the double positioning shaft shoulders is provided with an oil supply duct which is communicated with the main oil duct. A work side face is further provided with a radial oil storage tank communicated with a circular oil storage tank. According to the invention, the axial movement of the camshaft can be well controlled, so that the service life in the using process is prolonged and the abrasion loss is reduced greatly. The axial movement of the camshaft of the engine in the service life of the complete machine is ensured to meet the design requirement all the way, and the engine in the service life of the complete machine is ensured not to be repaired or maintained due to the axial movement.
Description
Technical field
The invention belongs to mechanical industry shaft element, be specifically related to a kind of engine cam that has oil storage tank.
Background technique
The axial movement value that motor is used to drive the camshaft of valve mechanism is a very crucial parameter, and the design of this parameter and control depend primarily on machining accuracy, material and the surface state of axial positioning structure, layout, structure, the situation such as axial excitation that camshaft receives.
At present; The axial movement value of general camshaft or axial positioning structure design are perfect inadequately, can cause the serious wear of bi-side, and lubrication effect is poor; The camshaft operating condition is worsened; And then cause that parts depreciation is serious, damage, system's vibrations become big, finally causes engine noise to become big, decreased performance; Guarantee the camshaft shifting amount through cam shaft to the design of dimensional chain, this method is brought camshaft and the above requirement on machining accuracy height that matches and connect, problems such as difficulty of processing height.There is not simple technological means to address the above problem in the existing technology.
Summary of the invention
The object of the invention is exactly to above-mentioned defective, provides a kind of lubrication effect better, reduces the engine cam that has oil storage tank of axial impact simultaneously.
The technological scheme that the present invention adopts is: it comprises cam, high pressure oil pump cam and signal panel is installed on camshaft, the camshaft; Camshaft is provided with two location shaft shoulder; Axially have main oil gallery on the camshaft, radially have the fuel feeding road on the axle journal between the shaft shoulder of two location, main oil gallery is connected with the fuel feeding road; Two relative sides of two location shaft shoulder are respectively the work side; Have function trough between work side and the axle journal, said work also is provided with radially oil storage tank on the side, and radially oil storage tank is communicated with annular oil storage tank.
The present invention is provided with oil storage tank on the work side of two location shaft shoulder, form lubricant film in the work side surface, and when the axial excitation that camshaft receives, lubricant film can cushion between the mating parts and encourage, thereby improves the working condition of camshaft.
Further, said function trough is connected with oil storage tank radially.
Further, be attached with lubricant film on the said work side.
The characteristics that the present invention has is simple in structure, processing cost is low, axial movement value that can the better controlled camshaft, prolong greatly in use life-span with reduce wear extent.Guaranteed that motor meets design requirement at the axial movement value of machine life convexity wheel shaft all the time, has guaranteed that motor can not keep in repair because of axial movement value or safeguard in machine life.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of axial position structure 1 among Fig. 1;
Fig. 3 is radially oil storage tank and annular oil storage tank structural representation;
Fig. 4 is radially oil storage tank and annular oil storage tank partial structurtes schematic representation;
Fig. 5 is axial positioning structure and bearing support assembling schematic representation.
Wherein, 1-axial positioning structure; 2-main oil gallery; 3-fuel feeding road; 4-two location shaft shoulder; 5-work side; 6-function trough; 7-radially oil storage tanks; 8-annular oil storage tank; 9-camshaft; 10-axle journal; 11-bearing support; 12-cam; 13-high pressure oil pump cam; 14-signal panel.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to further describe:
As depicted in figs. 1 and 2; The present invention includes cam 12, high pressure oil pump cam 13 and signal panel 14 are installed on camshaft 9, the camshaft 9; Camshaft 9 is provided with two location shaft shoulder 4, axially has main oil gallery 2 on the camshaft 9, radially has fuel feeding road 3 on the axle journal 10 between two location shaft shoulder 4; Main oil gallery 2 is connected with fuel feeding road 3; Two relative sides of two location shaft shoulder 4 are respectively work side 5, have function trough 6 between work side 5 and the axle journal 10, and function trough 6 plays to eliminate stress and concentrates and the effect of lubricant oil is provided for two sides 5 of working.Like Fig. 3 and shown in Figure 4, work also is provided with radially oil storage tank 7 on the side 5, and radially oil storage tank 7 is communicated with annular oil storage tank 8.Function trough 6 is connected with oil storage tank 7 radially.Work is attached with lubricant film on the side 5.
During work, with in-line four cylinder natural aspiration petrol engine, Dual Over Head Camshaft is explained.
As shown in Figure 5, the present invention has two location shaft shoulder 4, after two location shaft shoulder 4 is stuck on the bearing support 11, guarantees the axial float of camshaft by two work sides 5 of both sides.
As shown in Figure 5, lubricant oil is through camshaft main oil gallery 2, behind the fuel feeding road 3 of flowing through, makes lubricant oil be filled in the pressure-bearing oil film that formation work is used in the gap of axle journal 10 and bearing support 11, to reduce the friction and wear situation of axle journal 10 and bearing support 11 these a pair of friction pairs.Lubricant oil continues in the function trough 6 of axle journal 10 both sides, to be full of, and is the enough lubricant oil of lubricated storage.Like Fig. 3, Fig. 4 and shown in Figure 5; Lubricant oil continues the radially oil storage tank 7 through the axle journal both sides, and is full of the annular oil storage tank 8 of bi-side, finally on the work side 5 in both sides, forms lubricant film; When the axial excitation that camshaft 9 receives; Lubricant film can cushion between the mating parts and encourage, thereby improves the working condition of camshaft 9, and the while is with the friction and wear situation of two work side 5 and bearing support 11 these a pair of friction pairs of minimizing axially locating.The friction and wear amount of two pairs of friction pairs in the axial positioning structure 1 is reduced greatly, guaranteed the axial movement value of camshaft and improved its working life.
Claims (3)
1. engine cam that has oil storage tank; It comprises cam (12), high pressure oil pump cam (13) and signal panel (14) is installed on camshaft (9), the camshaft (9); Camshaft (9) is provided with two location shaft shoulder (4); Axially have main oil gallery (2) on the camshaft (9), radially have fuel feeding road (3) on the axle journal (10) between two location shaft shoulders (4), main oil gallery (2) is connected with fuel feeding road (3); Two relative sides of two location shaft shoulders (4) are respectively work side (5); Have function trough (6) between work side (5) and the axle journal (10), it is characterized in that: also be provided with radially oil storage tank (7) on the said work side (5), radially oil storage tank (7) is communicated with annular oil storage tank (8).
2. a kind of engine cam that has oil storage tank according to claim 1 is characterized in that: said function trough (6) is connected with oil storage tank (7) radially.
3. a kind of engine cam that has oil storage tank according to claim 1 is characterized in that: be attached with lubricant film on the said work side (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210303041.9A CN102787875B (en) | 2012-08-23 | 2012-08-23 | Engine camshaft with oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210303041.9A CN102787875B (en) | 2012-08-23 | 2012-08-23 | Engine camshaft with oil storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102787875A true CN102787875A (en) | 2012-11-21 |
| CN102787875B CN102787875B (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210303041.9A Active CN102787875B (en) | 2012-08-23 | 2012-08-23 | Engine camshaft with oil storage tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN102787875B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850793A (en) * | 2012-12-05 | 2014-06-11 | 中国重汽集团济南动力有限公司 | Engine cam shaft signal transmission device |
| CN104500161A (en) * | 2014-11-26 | 2015-04-08 | 中国北方发动机研究所(天津) | Cam shaft gear with signal panel function |
| CN105351133A (en) * | 2015-12-11 | 2016-02-24 | 中国北方发动机研究所(天津) | Engine oil lubrication type high-pressure variable pump camshaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363334A (en) * | 2008-09-23 | 2009-02-11 | 力帆实业(集团)股份有限公司 | Admission cam shaft structure |
| CN201298773Y (en) * | 2008-11-19 | 2009-08-26 | 无锡哈电电机有限公司 | Positioning bearing structure of sliding bearing motor |
| CN202325721U (en) * | 2011-11-17 | 2012-07-11 | 广州汽车集团股份有限公司 | Cam shaft for engine |
| CN102562201A (en) * | 2012-02-20 | 2012-07-11 | 重庆长安汽车股份有限公司 | Assembled camshaft |
| CN202732014U (en) * | 2012-08-23 | 2013-02-13 | 东风汽车公司 | Engine camshaft with oil storage grooves |
-
2012
- 2012-08-23 CN CN201210303041.9A patent/CN102787875B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363334A (en) * | 2008-09-23 | 2009-02-11 | 力帆实业(集团)股份有限公司 | Admission cam shaft structure |
| CN201298773Y (en) * | 2008-11-19 | 2009-08-26 | 无锡哈电电机有限公司 | Positioning bearing structure of sliding bearing motor |
| CN202325721U (en) * | 2011-11-17 | 2012-07-11 | 广州汽车集团股份有限公司 | Cam shaft for engine |
| CN102562201A (en) * | 2012-02-20 | 2012-07-11 | 重庆长安汽车股份有限公司 | Assembled camshaft |
| CN202732014U (en) * | 2012-08-23 | 2013-02-13 | 东风汽车公司 | Engine camshaft with oil storage grooves |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850793A (en) * | 2012-12-05 | 2014-06-11 | 中国重汽集团济南动力有限公司 | Engine cam shaft signal transmission device |
| CN104500161A (en) * | 2014-11-26 | 2015-04-08 | 中国北方发动机研究所(天津) | Cam shaft gear with signal panel function |
| CN105351133A (en) * | 2015-12-11 | 2016-02-24 | 中国北方发动机研究所(天津) | Engine oil lubrication type high-pressure variable pump camshaft |
| CN105351133B (en) * | 2015-12-11 | 2017-10-27 | 中国北方发动机研究所(天津) | A kind of oil lubricating formula high pressure variable pump camshaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102787875B (en) | 2014-12-17 |
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