CN206592166U - The support base and variable air valve lift range mechanism of variable air valve lift range mechanism - Google Patents
The support base and variable air valve lift range mechanism of variable air valve lift range mechanism Download PDFInfo
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- CN206592166U CN206592166U CN201720188543.XU CN201720188543U CN206592166U CN 206592166 U CN206592166 U CN 206592166U CN 201720188543 U CN201720188543 U CN 201720188543U CN 206592166 U CN206592166 U CN 206592166U
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Abstract
The utility model discloses a kind of support base of variable air valve lift range mechanism and variable air valve lift range mechanism, the support base of the variable air valve lift range mechanism, the support base has：Eccentric shaft supported hole for setting-up eccentricity axle, the camshaft support hole for installing camshaft, the fixed support supporting surface for mounting and fixing bracket and the first mounting hole through the support base, the second mounting hole and the 3rd mounting hole, first mounting hole, second mounting hole and the 3rd mounting hole are used to the support base being arranged on the cylinder cap of engine, and the camshaft is arranged on the support base by second mounting hole, the fixed support is arranged on the fixed support supporting surface by the 3rd mounting hole.The support base of the variable air valve lift range mechanism of the utility model embodiment, can provide the support of variable air valve lift range mechanism and spacing, and the distribution of force everywhere of support base is balanced, and compact conformation occupies little space, and manufacturing cost is low.
Description
Technical field
The utility model is related to a kind of support base of variable air valve lift range mechanism and the changeable air valve liter with the support base
Journey mechanism.
Background technology
The bearing structure of conventional engines variable air valve lift range mechanism is to be based on making monoblock type carrying machine on the basis of cylinder cap
Structure, variable air valve lift range mechanism is mounted above, and is made the whole height of engine and is increased, at the same also increase engine with it is whole
The difficulty that car is carried, extra increased bearing structure also add the total quality of engine, can neither meet the light of engine
Quantify to require, can not make full use of the space in engine cylinder cover again, the machining accuracy of traditional bearing structure to each contact surface
It is required that higher, complex process, high processing costs, while there is bearing structure and cylinder cap and cylinder head in engine operation process
The risk of the junction permeability of cover, traditional bearing structure causes variable air valve lift range mechanism due to the presence of processing dimension tolerance
The problem of there is each cylinder uniformity difference of valve stroke in implementation process.
Utility model content
In view of this, the utility model be directed to a kind of support base of variable air valve lift range mechanism with
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of support base of variable air valve lift range mechanism, the support base has：Eccentric shaft branch for setting-up eccentricity axle
Support hole, the camshaft support hole for installing camshaft, the fixed support supporting surface for mounting and fixing bracket and through institute
State the first mounting hole, the second mounting hole and the 3rd mounting hole of support base, first mounting hole, second mounting hole and institute
The 3rd mounting hole is stated to be used to the support base being arranged on the cylinder cap of engine, and the camshaft is pacified by described second
Fill hole to be arranged on the support base, the fixed support is arranged on the fixed support supporting surface by the 3rd mounting hole
On.
Further, the end face of the direction of the support base cylinder cap, which is provided with, is suitable to connect with the passage that oils of the cylinder cap
The logical oil groove that oils, the oil groove that oils is connected with second mounting hole and the 3rd mounting hole.
Further, the oil groove that oils, second mounting hole and the 3rd mounting hole are sequentially arranged, and described
Current limliting oil groove is provided between two mounting holes and the 3rd mounting hole.
Further, second mounting hole is connected with the camshaft support hole.
Further, the camshaft support hole is located at the end face away from the cylinder cap of the support base, the support
The end face away from the cylinder cap of seat is provided with breach, and second mounting hole is connected with the camshaft support hole by the breach
It is logical.
Further, the end face of the direction of the support base cylinder cap is provided with dowel hole, first mounting hole
There is positioning sleeve hole towards one end of the cylinder cap.
Further, the perisporium of the eccentric shaft supported hole is provided with bearing shell positioning hole.
Further, the end face in the camshaft support hole is provided with thrust surface.
Further, the support base also has fixed support confined planes, the fixed support confined planes and the fixation
Support supporting surface is vertical.
Relative to prior art, the support base of variable air valve lift range mechanism described in the utility model has the advantage that：
1) according to the support base of the variable air valve lift range mechanism of the utility model embodiment, lift range variable can be provided
The support of mechanism and spacing, and the distribution of force everywhere of support base is balanced, compact conformation occupies little space, and manufacturing cost is low.
Another object of the present utility model is to propose a kind of variable air valve lift range mechanism, with any described as described above
Support base.
The variable air valve lift range mechanism had the advantage that with above-mentioned support base relative to prior art it is identical, herein
Repeat no more.
Brief description of the drawings
Constitute a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 and Fig. 2 is the structural representation of the support base described in the utility model embodiment；
Fig. 3 is the structural representation of the variable air valve lift range mechanism described in the utility model embodiment；
Fig. 4 is the profile of the oil leab of the variable air valve lift range mechanism described in the utility model embodiment.
Description of reference numerals：
Variable air valve lift range mechanism 100,
Camshaft 1, support base 2, eccentric shaft 3, roll wheel assembly 4, roller rocker arms 5, middle swing arm 6, outside adjusting screw 7,
Middle swing arm bearing pin 8, inner side adjusting screw 9, fixed support 10, back-moving spring 11, valve 12, positioning sleeve 13, alignment pin 14 is convex
Wheel shaft tegillum 15, cylinder cap 16, oil passage 16a,
First mounting hole 21a, the second mounting hole 21b, the 3rd mounting hole 21c, camshaft tegillum bolt hole 21d,
Dowel hole 22a, positioning sleeve hole 22b,
Eccentric shaft supported hole 23, bearing shell positioning hole 23a,
Camshaft support hole 24, thrust surface 24a,
Fixed support supporting surface 25a, fixed support confined planes 25b,
Oil oil groove 26a, current limliting oil groove 26b, breach 26c,
First bolt 27a, the second bolt 27b, the 3rd bolt 27c, the 4th bolt 27d.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 3, variable air valve lift range mechanism 100 can include camshaft 1, support base 2, eccentric shaft 3, roll wheel assembly
4th, roller rocker arms 5, middle swing arm 6, outside adjusting screw 7, middle swing arm bearing pin 8, inner side adjusting screw 9, fixed support 10, multiple
Position spring 11, valve 12, positioning sleeve 13, alignment pin 14, camshaft tegillum 15, cylinder cap 16 and eccentric axial brake device.Variable gas
Door lift mechanisms 100 can be continuous variable valve lift mechanism.
Camshaft 1, eccentric shaft 3 are installed on support base 2 with fixed support 10, and camshaft 1 can freely revolve with eccentric shaft 3
Turn, support base 2 is arranged on cylinder cap 16.
Camshaft 1 is connected with the bent axle of engine, such as can be connected by Chain conveyer, the rotation driving roller of camshaft 1
Component 4, back-moving spring 11 is in close contact the roller of middle swing arm 6 and roll wheel assembly 4, during roll wheel assembly 4 is delivered to motion
Between swing arm 6, middle swing arm 6 drives roller rocker arms 5, and then opens or closes valve 12.
Eccentric axial brake device is connected with the power coupling of eccentric shaft 3, to control eccentric shaft 3 to do two clockwise or counterclockwise
The rotation in direction, eccentric axial brake device can be controlled motor, and the output shaft of controlled motor could be arranged to worm screw, eccentric shaft
3 can be fixedly connected with turbine, and worm screw engages with turbine, so that controlled motor is connected with the power coupling of eccentric shaft 3.
When eccentric shaft 3 rotates, the drive roller group part 4 of eccentric wheel 3, the roller for changing roll wheel assembly 4 with middle swing arm 6 is contacted
Point, so as to adjust the duration of valve stroke and valve opening.
Middle swing arm 6 is arranged on fixed support by middle swing arm bearing pin 8, outside adjusting screw 7 and inner side regulation spiral shell
Nail 9 can fix the position that also can adjust middle swing arm bearing pin 8, can be changed by rotating outside adjusting screw 7 or inner side adjusting screw 9
The position of swing arm bearing pin 8 in the middle of becoming, so as to adjust the pivot of middle swing arm 6.Each fixed support 10 can be equipped with two
Middle swing arm 6, fixed support 6 is on support base 2.
Support base 2 according to the utility model embodiment is described below.
As Figure 1-Figure 2, support base 2 has：Eccentric shaft supported hole 23, camshaft support hole 24, fixed support support
Face 25, the first mounting hole 21a, the second mounting hole 21b and the 3rd mounting hole 21c.
Wherein, eccentric shaft supported hole 23 is used for setting-up eccentricity axle 3, such as eccentric shaft 3 can be supported on bias by bearing
On axle supported hole 23, eccentric shaft supported hole 23 can be semicircle, can have on cylinder cap 16 corresponding with eccentric shaft supported hole 23
Semicircle orifice, eccentric shaft supported hole 23 can be located at the end face towards cylinder cap 16 of support base 2.
As shown in Figure 2 and Figure 4, bearing shell positioning hole 23a, bearing shell positioning hole can be provided with the perisporium of eccentric shaft supported hole 23
23a is used for the bearing shell of positioning eccentric shaft 3, and eccentric shaft 3 can be supported in bearing shell positioning hole 23a by needle bearing and bearing shell.
Camshaft support hole 24 is used to install camshaft 1, and the axle journal of camshaft 1 can be directly supported at camshaft support hole
On 24, the end face in camshaft support hole 24 is provided with thrust surface 24a, and the protrusion end face at the two ends of the axle journal of camshaft 1 can be by two
Individual thrust surface 24a clampings, so that the axial limiting of camshaft 1 is realized, and it is simple in construction, without extra spacing part.
First mounting hole 21a, the second mounting hole 21b and the 3rd mounting hole 21c run through support base 2, as shown in figure 4, branch
Support seat 2 can pass through the fastener through the first mounting hole 21a, the second mounting hole 21b and the 3rd mounting hole 21c and the phase of cylinder cap 16
Even.First mounting hole 21a, the second mounting hole 21b and the 3rd mounting hole 21c, which are spaced apart, to be set, and the mode that multiple spot is fixed causes branch
Support the stress of seat 2 transmission span small, uniform force.
As shown in figure 4, camshaft 1 is arranged on support base 2 by the second mounting hole 21b, such as the camshaft of camshaft 1
Tegillum 15 can be arranged on support base 2 by the second mounting hole 21b, and the second mounting hole 21b can neighbouring camshaft support hole
24 are set.Second mounting hole 21b is simultaneously for connecting three parts：Camshaft tegillum 15, support base 2 and cylinder cap 16, second
Mounting hole 21b utilization rate is high, it is possible to reduce total amount of parts, simplifies the structure of support base 2.
As shown in figure 4, fixed support 10 is arranged on fixed support supporting surface 25 by the 3rd mounting hole 21c, the 3rd peace
The one end for filling hole 21c is opened wide at fixed support supporting surface 25, and fixed support 10 is used to install variable air valve lift range mechanism 100
Middle swing arm 6.3rd mounting hole 21c is simultaneously for connecting three parts：Fixed support 10, support base 2 and cylinder cap 16, the 3rd
Mounting hole 21c utilization rate is high, it is possible to reduce total amount of parts, simplifies the structure of support base 2.
Specifically, as shown in figure 4, the first mounting hole 21a, the second mounting hole 21b and the 3rd mounting hole 21c can be light
Hole, the first bolt 27a is threadedly coupled through the first mounting hole 21a and with cylinder cap 16, and it is small that the second bolt 27b sequentially passes through camshaft
The mounting hole 21b of lid 15 and second is simultaneously threadedly coupled with cylinder cap 16, and the 3rd bolt 27c sequentially passes through the installation of fixed support 10 and the 3rd
Hole 21c is simultaneously threadedly coupled with cylinder cap 16, and camshaft tegillum bolt hole 21d is also provided with support base 2, and the 4th bolt 27d is passed through
Wear camshaft tegillum 15 and be threadedly coupled with camshaft tegillum bolt hole 21d, the second bolt 27b and camshaft tegillum bolt hole
21d is respectively provided at the both sides in camshaft support hole 24.
According to the support base 2 of the variable air valve lift range mechanism 100 of the utility model embodiment, changeable air valve liter can be provided
The support of journey mechanism 100 and spacing, and the distribution of force everywhere of support base 2 is balanced, compact conformation occupies little space, and manufactures
Cost is low.
According to the variable air valve lift range mechanism 100 of the utility model embodiment, support is firm, compact conformation, space-consuming
Small, manufacturing cost is low.
In some preferred embodiments of the present utility model, as shown in Figure 2 and Figure 4, support base 2 towards cylinder cap 16
End face, which can be provided with dowel hole 22a, cylinder cap 16, also is provided with the corresponding hole for being used to install alignment pin, the first mounting hole 21a
One end towards cylinder cap 16 have also be provided with positioning sleeve hole 22b, cylinder cap 16 it is corresponding be used to the hole of positioning sleeve be installed, it is and fixed
The hydraulic oil pump seat of the cylinder cap 16 of position set, alignment pin and this engine, positioning sleeve, the alignment pin of the first support base 2 are general, not volume
Outer increase part category, support base 2 can lean on positioning sleeve, alignment pin to be accurately positioned.
As shown in figure 1, fixed support supporting surface 25 can be located at the end face away from cylinder cap 16 of support base 2, support base 2 is also
With fixed support confined planes 25b, fixed support confined planes 25b can be vertical with fixed support supporting surface 25, fixed support limit
Plane 25b can be two.So, support base 2 can provide planar support and spacing for fixed support 10.
In some preferred embodiments of the present utility model, as shown in Figure 2 and Figure 4, support base 2 towards cylinder cap 16
End face is provided with the oil groove 26a that oils for being suitable to connect with the passage 16a that oils of cylinder cap 16, and oil oil groove 26a and the second mounting hole 21b
Connected with the 3rd mounting hole 21c.
Second mounting hole 21b is connected with camshaft support hole 24, and such second mounting hole 21b can be used as the logical of lubricating oil
Road is with the axle journal of camshaft lubrication 1, and camshaft support hole 24 is located at the end face away from cylinder cap 16 of support base 2, such as Fig. 1 and Fig. 4
Shown, the end face away from cylinder cap 16 of support base 2 passes through provided with breach 26c, the second mounting hole 21b and camshaft support hole 24 to be lacked
Mouth 26c connections.
3rd mounting hole 21c can as middle swing arm 6 grease channel, and connect with the oil duct on fixed support 10
It is logical.
As shown in Fig. 2 the oil groove 26a that oils, the second mounting hole 21b and the 3rd mounting hole 21c are sequentially arranged, and second installs
Current limliting oil groove 26b is provided between hole 21b and the 3rd mounting hole 21c.
Lubricating oil can enter the oil groove 26a that oils of support base 2 by the upper oil hole and the passage 16a that oils of cylinder cap 16, point
For two-way, the axle journal of camshaft 1 is lubricated by the second mounting hole 21b all the way, another road passes through current limliting oil groove 26b and the 3rd
Mounting hole 21c enters the oil duct of fixed support 10, and middle swing arm is lubricated.Current limliting oil groove 26b controls dredge oil amount, reduction
Influence to oil pressure.
The arrangement of this oil circuit, can take full advantage of bolt through-hole, and whole oil duct is that machine adds except current limliting oil groove 26b
Outside work, remaining is entirely casting, can be effectively reduced the cost of support base 2.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of support base (2) of variable air valve lift range mechanism (100), it is characterised in that the support base (2) has：For
The eccentric shaft supported hole (23) of setting-up eccentricity axle (3), the camshaft support hole (24) for installing camshaft (1), for installing
The fixed support supporting surface (25) of fixed support (10) and the first mounting hole (21a) through the support base (2), the second peace
Fill hole (21b) and the 3rd mounting hole (21c), first mounting hole (21a), second mounting hole (21b) and the described 3rd
Mounting hole (21c) is used to the support base (2) being arranged on the cylinder cap (16) of engine, and the camshaft (1) passes through
Second mounting hole (21b) is arranged on the support base (2), and the fixed support (10) passes through the 3rd mounting hole
(21c) is arranged on the fixed support supporting surface (25).
2. the support base (2) of variable air valve lift range mechanism (100) according to claim 1, it is characterised in that the support
The end face of the direction cylinder cap (16) of seat (2), which is provided with, to be suitable to and oiling that the passage that oils (16a) of the cylinder cap (16) is connected
Oil groove (26a), the oil groove that oils (26a) connects with second mounting hole (21b) and the 3rd mounting hole (21c).
3. the support base (2) of variable air valve lift range mechanism (100) according to claim 2, it is characterised in that described to oil
Oil groove (26a), second mounting hole (21b) and the 3rd mounting hole (21c) are sequentially arranged, and second mounting hole
Current limliting oil groove (26b) is provided between (21b) and the 3rd mounting hole (21c).
4. the support base (2) of variable air valve lift range mechanism (100) according to claim 2, it is characterised in that described second
Mounting hole (21b) is connected with the camshaft support hole (24).
5. the support base (2) of variable air valve lift range mechanism (100) according to claim 4, it is characterised in that the cam
Axle supported hole (24) is located at the end face away from the cylinder cap (16) of the support base (2), and deviating from for the support base (2) is described
The end face of cylinder cap (16) is provided with breach (26c), and second mounting hole (21b) is with the camshaft support hole (24) by described
Breach (26c) is connected.
6. the support base (2) of variable air valve lift range mechanism (100) according to claim 1, it is characterised in that the support
The end face of the direction cylinder cap (16) of seat (2) is provided with dowel hole (22a), described in the direction of first mounting hole (21a)
One end of cylinder cap (16) has positioning sleeve hole (22b).
7. the support base (2) of variable air valve lift range mechanism (100) according to claim 1, it is characterised in that the bias
The perisporium of axle supported hole (23) is provided with bearing shell positioning hole (23a).
8. the support base (2) of variable air valve lift range mechanism (100) according to claim 1, it is characterised in that the cam
The end face of axle supported hole (24) is provided with thrust surface (24a).
9. the support base (2) of variable air valve lift range mechanism (100) according to claim 1, it is characterised in that the support
Seat (2) also has fixed support confined planes (25b), the fixed support confined planes (25b) and the fixed support supporting surface
(25) it is vertical.
10. a kind of variable air valve lift range mechanism (100), it is characterised in that with branch as claimed in any one of claims 1-9 wherein
Support seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188543.XU CN206592166U (en) | 2017-02-28 | 2017-02-28 | The support base and variable air valve lift range mechanism of variable air valve lift range mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188543.XU CN206592166U (en) | 2017-02-28 | 2017-02-28 | The support base and variable air valve lift range mechanism of variable air valve lift range mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN206592166U true CN206592166U (en) | 2017-10-27 |
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ID=60126173
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720188543.XU Active CN206592166U (en) | 2017-02-28 | 2017-02-28 | The support base and variable air valve lift range mechanism of variable air valve lift range mechanism |
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| CN (1) | CN206592166U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139797A (en) * | 2018-09-29 | 2019-01-04 | 东风汽车集团有限公司 | A kind of three cylinder gasoline engine balance shaft mechanisms |
| CN113236395A (en) * | 2021-05-19 | 2021-08-10 | 重庆长安汽车股份有限公司 | Actuator mounting structure of variable valve lift system |
-
2017
- 2017-02-28 CN CN201720188543.XU patent/CN206592166U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139797A (en) * | 2018-09-29 | 2019-01-04 | 东风汽车集团有限公司 | A kind of three cylinder gasoline engine balance shaft mechanisms |
| CN113236395A (en) * | 2021-05-19 | 2021-08-10 | 重庆长安汽车股份有限公司 | Actuator mounting structure of variable valve lift system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200103 Address after: 212200 No. 868, Hong Xing Road, Yangzhong Economic Development Zone, Zhenjiang, Jiangsu Patentee after: Honeycomb power system (Jiangsu) Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
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| TR01 | Transfer of patent right |