CN201221387Y - Engine roller type arm-oscillating drive mechanism - Google Patents
Engine roller type arm-oscillating drive mechanism Download PDFInfo
- Publication number
- CN201221387Y CN201221387Y CNU2008200946507U CN200820094650U CN201221387Y CN 201221387 Y CN201221387 Y CN 201221387Y CN U2008200946507 U CNU2008200946507 U CN U2008200946507U CN 200820094650 U CN200820094650 U CN 200820094650U CN 201221387 Y CN201221387 Y CN 201221387Y
- Authority
- CN
- China
- Prior art keywords
- roller type
- live axle
- driving
- engine roller
- rocking arm
- 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 - Fee Related
Links
- 238000005461 lubrication Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a roller-type rocker driving mechanism of an engine, which comprises a group of driving rollers, a group of rockers and driving shafts. The rockers are provided with shaft holes which fit with the shafts; the driving rollers are linked with the driving shafts in a rigid way; and the driving shafts are linked with the rockers through the shaft holes and a floating structure. Because of the rigid linkage between the driving rollers and the driving shafts instead of the traditional needle roller type bearing linkage, the cost is reduced and the lubrication problem of the needle roller-type bearing is solved. Because the driving shafts are linked with the rockers through a semi-floating structure, the reliability of linkage is improved.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to roller type driving mechanism for rocker arm in a kind of engine valve controlling mechanism.
Background technique
At present, increasingly serious along with the development of automobile industry and energy situation, people just progressively improve the requirement of motor car engine fuel economy, and are also more and more higher to the requirement that reduces the loss of motor friction in pairs.In the engine valve controlling mechanism, because the roller type rocker structure is in the huge advantage that reduces in the frictional loss, its use on modern motor is very extensive.But existing roller type rocking arm mainly adopts needle bearing mechanism, and live axle adopts fixed axle structure, and its requirement to technology and manufacturing is all higher.Again because adopt the riveted type structure between live axle and the rocking arm usually, can be because the difference of material expansion coefficient each other, and have the low risk of reliability.
Summary of the invention
The technical problems to be solved in the utility model is to remedy above-mentioned the deficiencies in the prior art, for reducing the reliability that connects between technology and manufacture difficulty, raising rocking arm and the live axle, provides a kind of semi-floating engine roller type driving mechanism for rocker arm with low cost.
Technical problem of the present utility model is solved by the following technical programs:
A kind of engine roller type driving mechanism for rocker arm, comprise one group of driving rolls, one group of rocking arm and live axle, described rocking arm has the axis hole that matches with live axle, described driving rolls and described live axle adopt rigid joint, and described live axle and described rocking arm adopt floating structure to connect by described axis hole.
Above-mentioned engine roller type driving mechanism for rocker arm, described rigid joint are interference fit.It is Spielpassung that described floating structure connects.
Above-mentioned engine roller type driving mechanism for rocker arm, described rocking arm is provided with oilhole in the described axis hole position relative with camshaft.
The utility model beneficial effect compared with prior art is: adopt rigid joint to connect to replace traditional needle-type bearing between driving rolls and the live axle, can reduce cost and can improve the reliability of connection; Live axle adopts the semi-floating structure to connect with rocking arm, not only can improve the reliability of connection, and utilizes the splash lubrication oil of camshaft rotation generation to be splashed into oilhole, thereby solves the lubrication problem of live axle.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Embodiment
Also in conjunction with the accompanying drawings the utility model is described in further details below by concrete mode of execution.
As shown in Figure 1, engine roller type driving mechanism for rocker arm of the present utility model comprises: live axle 3, driving rolls 1 and rocking arm 2.The head of rocking arm 2 is provided with the axis hole 5 that matches with live axle 3, and rocking arm 2 is processed with oilhole 4 at axis hole 5 and camshaft (figure does not show) opposite position.
Driving rolls 1 and live axle 3 rigid joint, in preferred embodiment, interference fit is adopted in the connection of driving rolls 1 and live axle 3.Rocking arm 2 connects with live axle 3 by axis hole 5, and in preferred embodiment, axis hole 5 and live axle 3 adopt floating structure.It is Spielpassung that described floating structure connects.
Working principle of the present utility model: driving rolls 1 rotation under the cam driving of (figure does not show), owing to adopt rigid joint between driving rolls 1 and the live axle 3, live axle 3 is rotation synchronously also.Rocking arm 2 and live axle 3 adopts floating structures to connect and produces back and forth to shake and drive valve (scheming not show) and work.The splash lubrication oil that utilizes camshaft (figure does not show) rotation to produce is splashed into oilhole 4, thereby solves the lubrication problem of live axle 3.
Use rigid joint to replace needle bearing between the engine roller type driving mechanism for rocker arm of the present utility model, driving rolls 1 and live axle 3 and connect, reduced cost of production and manufacture difficulty, simplified production technology.Adopt floating structure to improve the reliability that connects between live axle 3 and the axis hole 5.Drive the oilhole 4 that is provided with on the roller bearing 3 and solved lubrication problem.The utility model is simple in structure, with low cost.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. engine roller type driving mechanism for rocker arm, comprise one group of driving rolls (1), one group of rocking arm (2) and live axle (3), described rocking arm (2) has the axis hole (5) that matches with live axle (3), it is characterized in that: described driving rolls (1) adopts rigid joint with described live axle (3), and described live axle (3) and described rocking arm (2) adopt floating structure to connect by described axis hole (5).
2. engine roller type driving mechanism for rocker arm according to claim 1 is characterized in that: described rigid joint is an interference fit.
3. engine roller type driving mechanism for rocker arm according to claim 1 and 2 is characterized in that: described rocking arm (2) is provided with oilhole (4) in described axis hole (5) position relative with camshaft.
4. engine roller type driving mechanism for rocker arm according to claim 1 is characterized in that: it is Spielpassung that described floating structure connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200946507U CN201221387Y (en) | 2008-06-16 | 2008-06-16 | Engine roller type arm-oscillating drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200946507U CN201221387Y (en) | 2008-06-16 | 2008-06-16 | Engine roller type arm-oscillating drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221387Y true CN201221387Y (en) | 2009-04-15 |
Family
ID=40574896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200946507U Expired - Fee Related CN201221387Y (en) | 2008-06-16 | 2008-06-16 | Engine roller type arm-oscillating drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221387Y (en) |
-
2008
- 2008-06-16 CN CNU2008200946507U patent/CN201221387Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20130616 |