CN206801635U - A kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail - Google Patents
A kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail Download PDFInfo
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- CN206801635U CN206801635U CN201720320470.5U CN201720320470U CN206801635U CN 206801635 U CN206801635 U CN 206801635U CN 201720320470 U CN201720320470 U CN 201720320470U CN 206801635 U CN206801635 U CN 206801635U
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Abstract
The utility model discloses a kind of with the stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail, signal panels and multiple cam sets are blocked up including hollow mandrel, tail, there are multiple axle journals in the axial direction of the mandrel, the cam set is sequentially arranged at each axle journal, and two cams of cam set are separately mounted to close to the left and right sides of axle journal；The tail blocks up signal panels and is made up of left part, middle part and right part, the left part that the tail blocks up signal panels is plugged into the afterbody of hollow mandrel, the middle part that the tail blocks up signal panels is in hexagon, and the right part that the tail blocks up signal panels is provided with multiple signal teeths of different sizes and teeth groove.The utility model alleviates the weight of whole camshaft, reduces energy consumption caused by engine work；It is difficult to meet that valve actuating mechanism is required the difference of camshaft each several part simultaneously to solve homogenous material；The phase information of camshaft can be accurately transmitted, improves the stationarity of engine operating.
Description
Technical field
Automotive engine component is the utility model is related to, is blocked up and integrated signal disk with powder metallurgy tail more particularly to one kind
Hollow assembled camshaft.
Background technology
In recent years, increasingly strict to laws and regulations requirements such as oil consumption, discharges to adapt to country, there is an urgent need to develop low energy consumption
Engine, this requires the higher valve actuating mechanism of design efficiency, and camshaft is as the rotation that constantly accelerates and slow down in valve actuating mechanism
The critical component turned, it is this to accelerate and be rotated in deceleration to be necessarily accompanied with huge energy loss, therefore, mitigate the weight of camshaft
Energy-conserving and environment-protective to engine play particularly important effect.
Existing camshaft, the exhaust cam shaft of car engine as disclosed in CN201269110Y, the camshaft is using whole
Body machine-shaping, still, in engine valve actuating mechanism, to the axle journal of camshaft, cam, mandrel each not phase of performance requirement
Together, for axle journal, it is desirable to which its sliding capability is good；For cam, it is desirable to which its is wear-resistant；For mandrel, it is desirable to its rigidity
Good, i.e., bending resistance, torsional property are good.However, the camshaft of forging and casting is made using homogenous material mostly so that the profit of material
With unreasonable, therefore it is extremely difficult to above-mentioned requirements；Meanwhile the camshaft is solid shafting, weight is big, energy loss during work
Greatly, therefore, it is necessary to existing camshaft is improved.
Utility model content
In view of the shortcomings of the prior art, technical problem to be solved in the utility model is,
In order to solve the above-mentioned technical problem, following technical scheme is employed in the utility model：
It is a kind of with powder metallurgy tail is stifled and the hollow assembled camshaft of integrated signal disk, including hollow mandrel, be arranged on
The tail of hollow mandrel afterbody blocks up signal panels and multiple cam sets on hollow mandrel, has in the axial direction of the mandrel more
Individual axle journal, the cam set are sequentially arranged at each axle journal, and two cams of cam set are separately mounted to close to axle journal
The left and right sides；The tail blocks up signal panels and is made up of left part, middle part and right part, and the left part that the tail blocks up signal panels is plugged into
In the afterbody of hollow mandrel, the middle part that the tail blocks up signal panels be in hexagon, and the right parts of the stifled signal panels of the tail is provided with more
Individual signal teeth of different sizes and teeth groove.
Further, in addition to the VVT terminations of hollow mandrel leading section are arranged on, the VVT terminations are by left part, middle part
Formed with right part, the dowel hole being connected with VVT is offered on the left side of VVT terminations and is circumferentially uniformly distributed in positioning
The axial oilhole of pin-and-hole surrounding, annular oil groove is offered on the left part of VVT terminations, multiple weeks are offered in the annular oil groove
To equally distributed radial direction oil hole, the circumferential oilhole is corresponded with radial direction oil hole and connected；Insert the right part of the VVT terminations
Be connected in the leading section of hollow mandrel, and the right part of VVT terminations is from left to right made up of optical axis and splined shaft, the optical axis with
The endoporus interference fit of hollow mandrel, the splined shaft and the spline fitted in hollow mandrel endoporus.
Preferably, the junction of the middle part of the VVT terminations and left part uses arc transition；In the VVT terminations
The junction of portion and right part uses arc transition.
Further, in addition to positioning sleeve, the positioning sleeve are arranged on the afterbody of hollow mandrel, and positioning sleeve and hollow core
Axle is interference fit.
The beneficial effects of the utility model are：
1st, mandrel uses tubular body, alleviates the weight of whole camshaft, reduces energy consumption caused by engine work.
2nd, mandrel, cam separate machined are manufactured, is then assembled by way of interference fit, solve single material
Expect to be difficult to meet that valve actuating mechanism is required the difference of camshaft each several part simultaneously, meanwhile, the stifled signal panels of tail are simple in construction, and design is closed
Reason, the phase information of camshaft can be accurately transmitted, improve the stationarity of engine operating.
The 3rd, axle journal is integrally machined to grinding on mandrel, can effectively avoid being set with axle journal and cracking, ensure that axle
Neck sufficient intensity.
4th, tail blocks up signal panels and uses powder metallurgy, and material property is good, it is not easy to wears, better assures that engine
Stationarity.
Brief description of the drawings
Fig. 1 is the structure chart of the hollow assembled camshaft of the utility model.
Fig. 2 is the side view that the utility model tail blocks up signal panels.
Fig. 3 is the front view that the utility model tail blocks up signal panels.
Fig. 4 is the structure chart of the utility model VVT terminations.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, a kind of hollow assembled camshaft blocked up with powder metallurgy VVT ends, including hollow mandrel 2,
The tail for being arranged on the hollow afterbody of mandrel 2 blocks up signal panels 5 and four cam sets on hollow mandrel 2, the axle of hollow mandrel 2
There are four axle journals 6 upwards, four cam sets are sequentially arranged at four axle journals 6 by order from left to right, and cam set
Two cams 3 are separately mounted to close to the left and right sides of axle journal 6；The effect that tail blocks up signal panels 5 is to identify difference by signal teeth
The firing order of cylinder, it is accurate to transmit camshaft phase information, improve the stationarity of engine operating；Tail blocks up signal panels 5 by a left side
End 51, middle part 52 and right part 53 are formed, and the left part 51 that tail blocks up signal panels 5 is plugged into the afterbody of hollow mandrel 2, and
The endoporus that tail blocks up left part 51 and the hollow mandrel 2 of signal panels 5 is interference fitted, and the middle part 52 that tail blocks up signal panels 5 is in hexagon, tail
The right part 53 of stifled signal panels 5 is provided with multiple signal teeths of different sizes and teeth groove, such as so that peak is clockwise as an example, the
The angular range of one signal teeth is 90 ° ± 20 ' to 120 ° ± 20 ', and the angular range of secondary signal tooth is 180 ° ± 20 ' to 270 °
± 20 ', the angular range of the 3rd signal teeth is 300 ° ± 20 ' to 360 ° ± 20 '.The tail of the present embodiment blocks up the letter of the structure of signal panels 5
It is single, it is reasonable in design, the phase information of camshaft can be accurately transmitted, improves the stationarity of engine operating；In addition, the present embodiment
Tail block up signal panels 5 and use powder metallurgy, material property is good, it is not easy to wears, better assures that the steady of engine
Property.
As shown in Fig. 1,4, the utility model also includes the VVT terminations 1 for being arranged on the hollow leading section of mandrel 2, VVT terminations 1
It is made up of left part 11, middle part 12 and right part 13, the dowel hole 14 being connected with VVT is offered on the left side of VVT terminations 1
And the axial oilhole 111 of the surrounding of dowel hole 14 is circumferentially uniformly distributed in, offer annular on the left part 11 of VVT terminations 1
Oil groove 112, the equally distributed radial direction oil hole 113 of multiple circumferences, axial oilhole 111 and radially oil are offered in annular oil groove 112
Hole 113 corresponds connection, and during work, fluid first passes around annular groove 112 and flows into radial direction oil hole 113, then again by radially
Oilhole 113 flows into axial oilhole 111, finally flows into VVT；The right part 13 of VVT terminations 1 is plugged into the leading section of hollow mandrel 2
In, and the right part 13 of VVT terminations 1 is from left to right made up of optical axis 131 and splined shaft 132, optical axis 131 and hollow mandrel 2
Endoporus is interference fitted, splined shaft 132 and the spline fitted in the hollow endoporus of mandrel 2.
Because hollow mandrel 2 is tubular body, the weight of whole camshaft is alleviated, is reduced caused by engine work
Energy consumption；Meanwhile manufacture mandrel, cam separate machined, then assembled by way of interference fit, solve single material
Material is difficult to meet that valve actuating mechanism is required the difference of camshaft each several part simultaneously, meanwhile, also take into account the reasonable cloth of VVT oil circuits
Put, using the collective effect of oilhole and oil groove, ensure that VVT realizes normal function.
As shown in figure 4, the junction of the middle part 12 of VVT terminations 1 and left part 11 uses arc transition, in VVT terminations 1
The junction in portion 12 and right part 13 uses arc transition, can so increase the intensity of whole VVT terminations 1, improves VVT terminations
1 performance.
As shown in figure 1, the utility model also includes positioning sleeve 4, positioning sleeve 4 is arranged on the afterbody of hollow mandrel 2, and positions
It is interference fit between set 4 and hollow mandrel 2, is positioned such that set 4 coordinates with bearing cap, camshaft axial float can be limited.
It is last it should be noted that above example is only illustrating the technical solution of the utility model rather than restriction technologies
Scheme, although the utility model is described in detail with reference to preferred embodiment by applicant, one of ordinary skill in the art
It should be appreciated that the technical solution of the utility model is modified for those or equivalent substitution, without departing from the technical program
Objective and scope, it all should cover among right of the present utility model.
Claims (4)
1. a kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail, it is characterised in that including hollow core
Axle, the stifled signal panels of tail for being arranged on hollow mandrel afterbody and multiple cam sets on hollow mandrel, the axle of the mandrel
There are multiple axle journals upwards, the cam set is sequentially arranged at each axle journal, and two cams of cam set are separately mounted to
Close to the left and right sides of axle journal；The tail blocks up signal panels and is made up of left part, middle part and right part, and the tail blocks up a left side for signal panels
End is plugged into the afterbody of hollow mandrel, and the middle part that the tail blocks up signal panels is in hexagon, and the tail blocks up the right-hand member of signal panels
Portion is provided with multiple signal teeths of different sizes and teeth groove.
2. the stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail, its feature according to claim 1
It is, in addition to is arranged on the VVT terminations of hollow mandrel leading section, the VVT terminations is by left part, middle part and right part structure
Into offering the dowel hole that is connected with VVT on the left side of VVT terminations and circumferential be uniformly distributed in dowel hole surrounding
Axial oilhole, annular oil groove is offered on the left part of VVT terminations, multiple circumferences are offered in the annular oil groove and are uniformly distributed
Radial direction oil hole, the circumferential oilhole and radial direction oil hole are corresponded and connected；The right part of the VVT terminations is plugged into hollow core
In the leading section of axle, and the right part of VVT terminations is from left to right made up of optical axis and splined shaft, the optical axis and hollow mandrel
Endoporus is interference fitted, the splined shaft and the spline fitted in hollow mandrel endoporus.
3. a kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail according to claim 2, its
It is characterised by, the middle part of the VVT terminations and the junction of left part use arc transition；The middle part of the VVT terminations and the right side
The junction of end uses arc transition.
It is 4. a kind of with the stifled hollow combined type with integrated signal disk of powder metallurgy tail according to any one of claim 1-3
Camshaft, it is characterised in that also including positioning sleeve, the positioning sleeve is arranged on the afterbody of hollow mandrel, and positioning sleeve with it is hollow
Mandrel is interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720320470.5U CN206801635U (en) | 2017-03-29 | 2017-03-29 | A kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720320470.5U CN206801635U (en) | 2017-03-29 | 2017-03-29 | A kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail |
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| Publication Number | Publication Date |
|---|---|
| CN206801635U true CN206801635U (en) | 2017-12-26 |
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| CN201720320470.5U Active CN206801635U (en) | 2017-03-29 | 2017-03-29 | A kind of stifled hollow assembled camshaft with integrated signal disk of powder metallurgy tail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675010A (en) * | 2018-07-10 | 2018-10-19 | 广东宏工物料自动化系统有限公司 | Pendulum pin type broken arch feed supplementing device |
-
2017
- 2017-03-29 CN CN201720320470.5U patent/CN206801635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675010A (en) * | 2018-07-10 | 2018-10-19 | 广东宏工物料自动化系统有限公司 | Pendulum pin type broken arch feed supplementing device |
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