CN204225948U - A kind of mechanical continuous variable valve lift motor combination rocking arm - Google Patents
A kind of mechanical continuous variable valve lift motor combination rocking arm Download PDFInfo
- Publication number
- CN204225948U CN204225948U CN201420605865.6U CN201420605865U CN204225948U CN 204225948 U CN204225948 U CN 204225948U CN 201420605865 U CN201420605865 U CN 201420605865U CN 204225948 U CN204225948 U CN 204225948U
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- bearing
- intermediate rockers
- valve lift
- rocking arm
- variable valve
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- 230000000452 restraining effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
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Abstract
The utility model discloses a kind of mechanical continuous variable valve lift motor combination rocking arm, comprise two intermediate rockers (1) being located at the full lift range variable control mechanism of motor respectively, bearing I (2), guide pad (10), bearing I I (4), and through two intermediate rockers (1) upper ends, the central shaft of bearing I (2), central shaft is supported on bearing I I (4), bearing I I (4) coordinates with guide pad (10), rolling friction is adopted to reduce the frictional loss of system further, reduce the frictional loss of motor, stressed more reasonable.
Description
Technical field
The utility model belongs to technical field of automobile engine, particularly relates to a kind of mechanical continuous variable valve lift motor combination rocking arm.
Background technique
Most practical piston type thermodynamic motor all adopts valve actuating mechanism to control to enter the air charge of cylinder.This valve actuating mechanism mechanical parameter has designed to be determined, then valve motion rule is namely with fixing, can not row adjustment again in motor actual motion.
Engine operation condition is complicated, and in cylinder, air charge demand has relatively big difference with operating mode difference.For petrol engine, when load is less, only need less air quantity, and be suppress unnecessary air to enter in cylinder, throttle valve need be adopted, thus cause pumping loss, add complete machine oil consumption.
If lift and the duration of valve opening can be controlled, then may replace closure, play the effect controlling to enter air charge in cylinder, and reduce pumping loss.On the other hand, under different rotating speeds, adopt different maximum valve lift, also can improve maximum engine torque.
Model utility content
Technical problem to be solved in the utility model is a kind of frictional loss of further reduction motor, stressed more reasonably mechanical continuous variable valve lift motor combination rocking arm.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of mechanical continuous variable valve lift motor combination rocking arm, comprising:
Two intermediate rockers, are located in engine air valve lift control mechanism respectively;
Jack shaft, jack shaft passes and connects described two intermediate rockers upper ends;
Bearing I I, described intermediate rockers upper end is provided with groove, and bearing I I to be arranged in groove and to be sleeved on jack shaft;
Guide pad, guide pad is provided with the restraining groove suitable with bearing I I;
Bearing I, bearing I is sleeved between described jack shaft near middle, two intermediate rockers, and bearing I coordinates with the eccentric wheel of Control Shaft.
The end that intermediate rockers is connected with the cam on engine cam is provided with bearing I II, and described bearing I II is connected with intermediate rockers by bearing pin.
Described bearing I both sides are provided with spacing bearing catch.
Described jack shaft two ends are provided with the circlip of spacing intermediate rockers axial position.
Described intermediate rockers is provided with stiffening rib.
Described bearing I, bearing I I and bearing I II are needle bearing.
A technological scheme tool in technique scheme has the following advantages or beneficial effect, coordinated by the bearing I I between intermediate rockers two thrust surface and guide pad guide and limit, bearing I coordinates with the eccentric wheel on Control Shaft, adopts rolling friction to reduce the frictional loss of system further.Intermediate rockers adopts reinforcing rib design simultaneously, strengthens intensity and the rigidity of intermediate rockers, to save intermediate rockers consumption, weight reduction, reduces costs.In addition, the axial thrust face of intermediate rockers upper end portion spacing, makes combination pitman arm shaft to realization well location, can improve the reliability of system.
Accompanying drawing explanation
Fig. 1 for provide in the utility model embodiment mechanical continuous variable valve lift motor combination rocking arm structural representation;
Fig. 2 is the structural representation of the intermediate rockers of Fig. 1;
Fig. 3 is the structural representation of the bearing catch of Fig. 1;
Fig. 4 is the structural representation of the jack shaft of Fig. 1;
Fig. 5 is the mounting structure schematic diagram of the combination rocking arm of Fig. 1
Mark in above-mentioned figure is: 1, intermediate rockers, and 2, bearing I, 3, bearing catch, 4, bearing I I, 5, jack shaft, 6, intermediate rockers upper end portion, 7, bearing I II, 8, bearing pin, 9, circlip, 10, guide pad.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.
See Fig. 1, a kind of mechanical continuous variable valve lift motor combination rocking arm, comprising:
Two intermediate rockers 1, are located in engine air valve lift control mechanism respectively;
Jack shaft 5, jack shaft 5 passes and connects two intermediate rockers 1 upper ends;
Bearing I I4, intermediate rockers 1 upper end is provided with groove, and as shown in Figure 2, bearing I I4 to be arranged in groove and to be sleeved on jack shaft 5;
Guide pad 10, guide pad 10 is provided with the restraining groove suitable with bearing I I4;
Bearing I 2, bearing I 2 is sleeved between jack shaft 5 near middle, two intermediate rockers 1, and bearing I 2 coordinates with the eccentric wheel of Control Shaft.
The end that intermediate rockers 1 is connected with the cam on engine cam is provided with bearing I II7, and bearing I II7 is connected with intermediate rockers 1 by bearing pin 8.
Bearing I 2 both sides are provided with spacing bearing catch 3, as shown in Figure 3.
Jack shaft 5 two ends are provided with the circlip 9 of spacing intermediate rockers 1 axial position, as shown in Figure 4.
Intermediate rockers 1 is provided with stiffening rib.Bearing I 2, bearing I I4 and bearing I II7 are needle bearing.
By central shaft, two intermediate rockers 1, a needle bearing I2 and two bearing catch 3 are coupled together, central shaft is supported on needle bearing I2, the end that intermediate rockers 1 is connected with the cam on engine cam is provided with needle bearing III7, intermediate rockers 1 is equipped with bearing pin 8, is used for fixing needle bearing III7 in intermediate rockers 1.After jack shaft 5 assembles up needle bearing I2, two bearing catch 3 and two intermediate rockers 1, front and back circlip 9 fixing axial limitings.
Linked together by central shaft in intermediate rockers 1 upper end slot and needle bearing II4, needle bearing II4 coordinates with guide pad 10, and guide pad 10 couples of needle bearing II4 play guiding and spacing effect.Intermediate rockers 1 upper end portion is slightly wider than needle bearing II4 external diameter, is stuck on guide pad 10, plays the spacing effect of axial thrust to intermediate rockers 1, thus improves the conformity exported with cylinder two valve lifts, thus improves the reliability of system.
Needle bearing I2 coordinates with Control Shaft eccentric wheel, and Control Shaft rotates, and eccentric wheel promotes needle bearing I2 and is subjected to displacement, and makes valve export different lift.Herein, needle bearing I2 coordinates with Control Shaft eccentric wheel for needle bearing coordinates, and needle bearing II4 coordinates with guide pad 10 also for needle bearing coordinates, and is rolling friction contact, can reduces the frictional loss of system, improve the fuel economy of motor.
Intermediate rockers 1 adopts reinforcing rib design, and strengthen intensity and the rigidity of intermediate rockers 1, to save intermediate rockers 1 consumption, weight reduction, reduces costs.
After adopting above-mentioned structure, coordinated by the bearing I I4 between intermediate rockers 1 liang of thrust surface and guide pad 10 guide and limit, bearing I 2 coordinates with the eccentric wheel on Control Shaft, as shown in Figure 5, adopts rolling friction to reduce the frictional loss of system further.Intermediate rockers 1 adopts reinforcing rib design simultaneously, and strengthen intensity and the rigidity of intermediate rockers 1, to save intermediate rockers 1 consumption, weight reduction, reduces costs.In addition, the axial thrust face of intermediate rockers 1 upper end portion spacing, makes combination pitman arm shaft to realization well location, can improve the reliability of system.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (6)
1. a mechanical continuous variable valve lift motor combination rocking arm, is characterized in that, comprising:
Two intermediate rockers (1), are located in engine air valve lift control mechanism respectively;
Jack shaft (5), jack shaft (5) passes and connects described two intermediate rockers (1) upper ends;
Bearing I I (4), described intermediate rockers (1) upper end is provided with groove, and bearing I I (4) to be arranged in groove and to be sleeved on jack shaft (5);
Guide pad (10), guide pad (10) is provided with the restraining groove suitable with bearing I I (4);
Bearing I (2), bearing I (2) is sleeved between described jack shaft (5) near middle, two intermediate rockers (1), and bearing I (2) coordinates with the eccentric wheel of Control Shaft.
2. mechanical continuous variable valve lift motor combination rocking arm as claimed in claim 1, it is characterized in that, the end that intermediate rockers (1) is connected with the cam on engine cam is provided with bearing I II (7), and described bearing I II (7) is connected with intermediate rockers (1) by bearing pin (8).
3. mechanical continuous variable valve lift motor combination rocking arm as claimed in claim 1 or 2, it is characterized in that, described bearing I (2) both sides are provided with spacing bearing catch (3).
4. mechanical continuous variable valve lift motor combination rocking arm as claimed in claim 3, it is characterized in that, described jack shaft (5) two ends are provided with the circlip (9) of spacing intermediate rockers (1) axial position.
5. mechanical continuous variable valve lift motor combination rocking arm as claimed in claim 4, it is characterized in that, described intermediate rockers (1) is provided with stiffening rib.
6. mechanical continuous variable valve lift motor combination rocking arm as claimed in claim 5, it is characterized in that, described bearing I (2), bearing I I (4) and bearing I II (7) are needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605865.6U CN204225948U (en) | 2014-10-20 | 2014-10-20 | A kind of mechanical continuous variable valve lift motor combination rocking arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605865.6U CN204225948U (en) | 2014-10-20 | 2014-10-20 | A kind of mechanical continuous variable valve lift motor combination rocking arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225948U true CN204225948U (en) | 2015-03-25 |
Family
ID=52924056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420605865.6U Active CN204225948U (en) | 2014-10-20 | 2014-10-20 | A kind of mechanical continuous variable valve lift motor combination rocking arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204225948U (en) |
-
2014
- 2014-10-20 CN CN201420605865.6U patent/CN204225948U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |