CN107916963A - The assemble method of camshaft phaser and camshaft phaser - Google Patents
The assemble method of camshaft phaser and camshaft phaser Download PDFInfo
- Publication number
- CN107916963A CN107916963A CN201711181155.XA CN201711181155A CN107916963A CN 107916963 A CN107916963 A CN 107916963A CN 201711181155 A CN201711181155 A CN 201711181155A CN 107916963 A CN107916963 A CN 107916963A
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- CN
- China
- Prior art keywords
- protecgulum
- rotor
- spring
- cap unit
- camshaft phaser
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The present invention provides the assemble method of camshaft phaser and camshaft phaser.The camshaft phaser includes cap unit, protecgulum, spring, rotor and stator, and cap unit includes spring retainer and spring cup, and spring wind is in spring retainer and is presented axially between spring cup and protecgulum, and protecgulum is installed to stator, stator surrounding rotor.Spring retainer and spring cup, which are presented, before cap unit is installed to protecgulum and rotor is structure as a whole, and the outside diameter of spring cup is more than the diameter of the centre bore of protecgulum.Spring retainer is substantially cup-shaped, formed with multiple cantilever beams on the perisporium of spring retainer, during cap unit is axially inserted into the centre bore and rotor of protecgulum, cantilever beam is subject to the pressure of the inner peripheral surface of the centre bore of protecgulum and elastic deformation, after cantilever beam passes through centre bore, cantilever beam sprung back and the step backstop formed by rotor and protecgulum, so as to carry out axial limiting to cap unit.
Description
Technical field
The present invention relates to camshaft phaser/variable cam timing (VCT) device.
Background technology
In camshaft phaser, in the design of integral cover unit, in camshaft phaser transport and the group of customer side
During dress, due to tension force and/or vibrations, cap unit may drop, this will cause the complaint of client, in some instances it may even be possible to can cause
Safety problem.Therefore locking functions are needed, to prevent cap unit from the risk that drops occur.
Known application number is 200880104149.7, the Chinese invention patent of Publication No. CN101835959A discloses.
During the patent discloses, as shown in Fig. 1 (Fig. 3 disclosed in the patent), multiple axial retention portions 102 are formed on cap unit 101.Should
Axial retention portion 102 is matched with the groove on rotor 103, realizes axial retention function.
The shortcomings that program be not easy to form (for example being formed by powdered metal process) including the groove on rotor 103, it is necessary to
Machining, reduces production efficiency, adds cost.
Known patent discloses DE102014221189A1.In the patent discloses, such as Fig. 2A and 2B (figures disclosed in the patent
5 and Fig. 7) shown in, multiple retainers 202 are formed in the bottom of ring 201, then ring 201 is placed in matched groove.Then clamp
Protecgulum 203, using the interference between retainer 202 and protecgulum 203, realizes axial retention function.
If the outside diameter of tops 204 of the shortcomings that program including ring 201 is more than the internal diameter of protecgulum 203, be not suitable for
Use this design.
Known patent discloses DE102011082590A1.In the patent discloses, if Fig. 3 A and Fig. 3 B are (disclosed in the patent
Fig. 3 and Fig. 2) shown in, Adapter component 302 is riveted in the bottom of cap unit 301, multiple axis are formed in the Adapter component 302
To retainer 303, meanwhile, form notch on protecgulum 304.After cap unit 301 being assembled by the notch of protecgulum 304, swivelling cover
Unit 301, using the interference between cap unit 301 and protecgulum 304, realizes axial retention function.
The shortcomings that program, the assembling process of cap unit 301 was complicated including needing new a structure and connection procedure.
The content of the invention
Cap unit drops in order to prevent, at the same simplify camshaft phaser production and assembling and propose the present invention.
The present invention provides a kind of camshaft phaser, it includes cap unit, protecgulum, spring, rotor and stator, the sheet
Member includes spring retainer and spring cup, and the spring wind is in the spring retainer and in the camshaft phaser
It is located axially between the spring cup and the protecgulum, the protecgulum is installed to the stator, and the track ring is around described turn
Son,
The protecgulum and the rotor foregoing description spring retainer are installed in the cap unit and the spring cup is in
Now it is structure as a whole, the outside diameter of the spring cup is more than the diameter of the centre bore of the protecgulum,
The spring retainer is substantially cup-shaped, formed with multiple cantilever beams on the perisporium of the spring retainer,
During centre bore and the rotor that the cap unit is axially inserted into the protecgulum described in, the cantilever beam is subject to
The pressure of the inner peripheral surface of the centre bore of the protecgulum and elastic deformation, it is described after the cantilever beam passes through the centre bore
Cantilever beam sprung back and the step backstop formed by the rotor and the protecgulum, so as to be carried out to the cap unit
Axial limiting.
In at least one embodiment, the root of the cantilever beam close to the spring retainer bottom wall with it is described
The perisporium connection of spring retainer, the radial outside and the spring cup of the top of the cantilever beam towards the spring retainer
Extension.
In at least one embodiment, the perisporium of the spring retainer is formed with partly surrounding opening for the cantilever beam
Mouthful.
In at least one embodiment, the cantilever is formed by carrying out punching press to the perisporium of the spring retainer
Beam.
In at least one embodiment, the rotor is provided with the first recess for accommodating the cantilever beam.
In at least one embodiment, the rotor is provided with the depression of the bottom for accommodating the spring retainer
Portion.
In at least one embodiment, the spring retainer is additionally provided with along the axially extending raised line, described
Raised line is engaged through the centre bore of the protecgulum with the second recess of the rotor, so as to prevent the cap unit relative to institute
State rotor rotation.
In at least one embodiment, the cap unit is stamped to form by single piece of sheet metal.
The present invention also provides a kind of assemble method of camshaft phaser according to the present invention, it includes the following steps：
Assemble the rotor, the stator, the protecgulum and the spring；And
The cap unit is axially inserted into the centre bore of the protecgulum and the rotor described in.
The present invention also provides a kind of assemble method of camshaft phaser according to the present invention, it includes the following steps：
Assemble the rotor, the stator, the protecgulum and the spring；And
The cap unit is axially inserted into the centre bore of the protecgulum and the rotor described in,
Wherein, before the cap unit is axially inserted into centre bore and the rotor of the protecgulum described in, make
The raised line of the spring retainer is aligned with the second recess of the rotor, after the cap unit is inserted into the rotor,
Second recess prevents the cap unit from being rotated relative to the rotor.In this embodiment, passed through in the cantilever beam
After the centre bore, without relative to spring retainer described in the protecgulum and the stator rotation.
In the present invention, interfered by the cantilever beam of cap unit and the inner peripheral of protecgulum to carry out axial limit to cap unit
Position.In this way, for physically, it reliably ensure that the axial limiting of cap unit, simple production process, easy to assembly, Ke Yiyou
Effect ground reduces production and assembly cost.
Brief description of the drawings
Fig. 1 is shown according to a kind of part-structure of the camshaft phaser of the prior art.
Fig. 2A and Fig. 2 B show the part-structure of the camshaft phaser according to another prior art.
Fig. 3 A and Fig. 3 B show the camshaft phaser according to another prior art.
Fig. 4 shows the axial, cross-sectional view of camshaft phaser according to embodiment of the present invention.
Fig. 5 shows the stereogram of the cap unit of the camshaft phaser in Fig. 4.
Fig. 6 shows the stereogram of the rotor of the camshaft phaser in Fig. 4.
Fig. 7 shows the stereogram of the protecgulum of the camshaft phaser in Fig. 4.
Description of reference numerals
101 cap units；102 axial retention portions；103 rotors；
201 rings；202 retainers；203 protecgulums；204 tops；
301 cap units；302 Adapter components；303 axial retention portions；304 protecgulums；
1 cap unit；11 spring retainers；11A bottom walls；11B perisporiums；12 spring cups；12A main bodys；12B edges；13 cantilevers
Beam；14 raised lines；15 openings；16 first spring peep holes；18 second spring peep holes；19 centre bores；2 protecgulums；21 centre bores；
21A small diameter portion inner peripheral surfaces；21B large-diameter portion inner peripheral surfaces；22 bolts hole；3 rotors；31 main bodys；32 centre bores；33 concave parts；33A is recessed
The bottom surface of concave portion；The side of 33B concave parts；The first recesses of 34A；The second recesses of 34B；35 protruded arms；4 springs；5 stators；6 chains
Wheel；7 bolts.
Embodiment
The illustrative embodiments of the present invention are described with reference to the accompanying drawings.It should be appreciated that these specific descriptions are only used for
How teaching those skilled in the art implement the present invention, rather than all feasible modes of the exhaustive present invention, without in
Limit the scope of the invention.
Illustrate the overall structure of the camshaft phaser of the present invention with reference first to Fig. 4.
The camshaft phaser of the present invention includes cap unit 1, protecgulum 2, rotor 3, spring 4, stator 5, sprocket wheel 6 and bolt 7.
Cap unit 1 includes spring retainer 11 and spring cup 12.Such as the spring 4 of scroll spring is wound in spring retainer 11 and in axis
It is limited on to A between spring cup 12 and protecgulum 2.One end of spring 4 can be installed to cap unit 1, and the other end of spring 4 can
To be installed to protecgulum 2.
Protecgulum 2 is connected by bolt 7 with stator 5 and sprocket wheel 6, so as to be relatively fixed with stator 5.The spring of cap unit 1 is protected
Holder 11 is engaged by raised line 14 described later and the rotor 3 with the radially inner side positioned at stator 5, and prevent cap unit 1 relative to
Rotor 3 rotates.As described further below, the cantilever beam 13 and the inner peripheral of protecgulum 2 that are formed on spring retainer 11 are interfered,
And axial limiting is carried out to cap unit 1, prevent cap unit 1 from dropping.
Referring to the structure of the cap unit 1 of Fig. 4 to Fig. 7 further explanation camshaft phasers, protecgulum 2 and rotor 3.
The spring retainer 11 and spring cup 12 of cap unit 1 can be integratedly stamped to form by metallic plate.It is however, of the invention
Not limited to this, for example, it is also possible to be separately formed spring retainer 11 and spring cup 12, then passes through the means such as riveting by the two
It is secured together.
As shown in Figure 5 clearly, the spring retainer 11 of cap unit 1 is generally cup-like and is limited by bottom wall 11A and perisporium 11B
It is fixed, it is allowed for the central bolt for being connected to camshaft to pass through formed with centre bore 19, centre bore 19 on bottom wall 11A.In week
Formed with two or more cantilever beams 13 and two or more raised lines 14 on wall 11B.Cantilever beam 13 and raised line 14 are preferably
Each along being arranged circumferentially for perisporium 11B, and cantilever beam 13 and the preferably alternate arrangement of raised line 14.
The root of cantilever beam 13 is connected to perisporium 11B close to bottom wall 11A, and the top of cantilever beam 13 is towards 12 He of spring cup
Radial outside protrudes.Formed with opening 15 around cantilever beam 13.During the face opening 15 observation, the opening is in substantially " recessed "
Shape.The elastic deformation of cantilever beam 13 is easy in the formation of opening 15.It can be, but not limited to by carrying out punching press to perisporium 11B come shape
Into cantilever beam 13.
The axial A of raised line 14 along spring retainer 11 extends to bottom wall 11A, and relative to the other parts of perisporium 11B
It is prominent to radial outside.It can be, but not limited to form raised line 14 by carrying out punching press to perisporium 11B.
The spring cup 12 of cap unit 1 is in be radially oriented the flange shape of outside extension from the cup-shaped opening of spring retainer 11.
The outside diameter of spring cup 12 is more than the internal diameter of the centre bore 21 of following protecgulums 2.Spring cup 12 includes flat main body 12A and from master
The edge 12B of the periphery bending of body 12A, so that edge 12B is substantially vertical with main body 12A and generally axially A extends.In main body
Multiple first spring peep holes 16 are evenly arranged in 12A, the first spring peep hole 16 may be used also in addition to for observing spring 4
For mitigating the weight of cap unit 1.Second spring peep hole 18 is also formed with the radially inner side of the first spring peep hole 16.
As shown in fig. 7, protecgulum 2 is discoideus, and including centre bore 21.Limit centre bore 21 inner peripheral surface include be used for
The small diameter portion inner peripheral surface 21A and the large-diameter portion inner circumferential for being passed through for the raised line 14 of cap unit 1 that the cantilever beam 13 of cap unit 1 coordinates
Face 21B.Small diameter portion inner peripheral surface 21A and large-diameter portion inner peripheral surface 21B is arc surface.Small diameter portion inner peripheral surface 21A and large-diameter portion inner circumferential
The circumferential lengths of face 21B are respectively greater than the circumferential lengths of cantilever beam 13 and raised line 14, so as to allow between cap unit 1 and protecgulum 2
Circumferentially rotating within the specific limits.Multiple bolts hole 22 are also formed with around centre bore 21, for 7 screw thread of bolt
Connection.
As shown in Figure 6 clearly, rotor 3 includes main body 31 and from the multiple protruded arm prominent to radial outside of main body 31
35.Protruded arm 35 is used to cooperatively form multiple liquid chambers with stator 5.Main body 31 is set formed with centre bore 32 around centre bore 32
It is useful for the concave part 33 of the bottom of the spring retainer 11 of installation cap unit 1.Concave part 33 is formed as circle and by bottom surface
33A and side 33B is limited.The side 33B of concave part 33 be provided be radially oriented the concave multiple first recess 34A in outside and
Multiple second recess 34B.First recess 34A is used to accommodate cantilever beam 13.Second recess 34B is used to engage with raised line 14, and prevents
Only cap unit 1 is rotated relative to rotor 3.Concave part 33, which is formed as its top side, has maximum outside diameter, in other words, concave part 33
The outside diameter of top side is greater than or equal to bottom side (bottom surface 33A sides) and the outside diameter in axial centre position.Similarly, the first recess
It is maximum in the top side of the first recess 34A and the second recess 34B that 34A and the second recess 34B is radially oriented the concave depth in outside,
In other words, the cup depth of the top side of the first recess 34A and the second recess 34B is greater than or equal to bottom side (bottom surface 33A sides)
With the cup depth in axial centre position.In this way, 33 and first recess 34A of concave part, the second recess 34B can easily but
It is not limited by and axial compacting is carried out to rotor 3 to be molded.
The installation process of the camshaft phaser of the present invention is described below.
When cap unit 1 is installed to protecgulum 2 and rotor 3, by cap unit 1, A is inserted into towards protecgulum 2 and rotor 3 vertically.
Since the outside diameter of cantilever beam 13 is more than the internal diameter of the small diameter portion inner peripheral surface 21A of protecgulum 2, in insertion process, cantilever beam 13 is in pressure
The lower elastic deformation of effect realizes press-in；After cantilever beam 13 crosses small diameter portion inner peripheral surface 21A, sprung back, and be inserted into
Into the first recess 34A of rotor 3.Utilize close cap unit 1 of the cantilever beam 13 near small diameter portion inner peripheral surface 21A with protecgulum 2
Bottom wall 11A surface formed interference to cap unit 1 carry out axial limiting, prevent cap unit 1 from dropping.It is believed that turning
3 the first recess 34A of son is formd to after sprung back with the corresponding position of protecgulum 2 (near small diameter portion inner peripheral surface 21A)
Cantilever beam 13 carry out axial stop step.
While cantilever beam 13 passes through the small diameter portion inner peripheral surface 21A of protecgulum 2, raised line 14 is passed through in the large-diameter portion of protecgulum 2
Side face 21B, and engaged with the second recess 34B of rotor 3.
It should be appreciated that position of the cantilever beam 13 on the axial A of cap unit 1 causes, in the bottom wall 11A of spring retainer 11
Against the concave part 33 of rotor 3 bottom surface 33A when, the top of cantilever beam 13 is than the bottom wall 11A's of the close cap unit 1 of protecgulum 2
Bottom wall 11A sides are leaned on surface, such protecgulum 2 without prejudice to cantilever beam 11 the sprung back for being radially oriented outside.Similarly, turn
First recess 34A of son 3 is again formed as without prejudice to 13 sprung back of cantilever beam.
The beneficial effect of the above embodiment of the present invention is described below.
1. in the present invention, pass through the bottom wall of the cantilever beam 13 of cap unit 1 and the close cap unit 1 of the inner peripheral of protecgulum 2
The Surface Interference of 11A to carry out axial limiting to cap unit 1, prevents cap unit 1 from dropping from protecgulum 2.In this way, for physically,
It reliably ensure that the axial limiting of cap unit 1.With not penetrating the perisporium 11B of spring retainer 11 for example on perisporium 11B
Form projection to compare, the formation of cantilever beam 13 is easier, and stop effect is more stable and reliable.
2. being pressed into using the elastic deformation realization of the cantilever beam 13 of cap unit 1 and spacing, deflection can be larger, is pressed at the same time
Power can reduce, and assembling is simple.For example, form interference with the bottom of the spring retainer 11 of cap unit 1 and the concave part 33 of rotor 3
Cooperation is compared, and the dimension precision requirement of cap unit 1 and rotor 3 is reduced, simple production process, and production cost is low.
3. the axial limiting function that cap unit 1 can be achieved in new parts and new process need not be increased, cost is reduced.
4. the inner peripheral backstop lid of protecgulum 2 (that is, is passed through by the cantilever beam 13 of cap unit 1 and the inner peripheral interference of protecgulum 2
The cantilever beam 13 of unit 1) to carry out axial limiting to cap unit 1, prevent cap unit 1 from dropping, assembling process is simple, it is only necessary to will
Cap unit 1 is axially forced in place, it is not necessary to process is adjusted such as rotation, i.e. passes through the center of protecgulum 2 in cantilever beam 13
After hole 21, without relative to 5 rotation spring retainer 11 (cap unit 1) of protecgulum 2 and stator.Meanwhile with for example shown in Fig. 1
Axial retention portion 102 can make the manufacture simplification of the concave part and recess to rotor, drop compared with the groove matching on rotor 103
Low production cost.
It should be appreciated that the above embodiment is only exemplary, the limitation present invention is not used in.Those skilled in the art can be with
Various variations and modifications are made to the above embodiment under the teachings of the present invention, without departing from the scope of the present invention.
Claims (10)
1. a kind of camshaft phaser, it includes cap unit, protecgulum, spring, rotor and stator, and the cap unit is protected including spring
Holder and spring cup, the spring wind are located axially at institute in the spring retainer and in the camshaft phaser
State between spring cup and the protecgulum, the protecgulum is installed to the stator, the track ring around the rotor,
It is characterized in that,
The protecgulum and the rotor foregoing description spring retainer are installed in the cap unit and the spring cup is rendered as
Integrative-structure, the outside diameter of the spring cup are more than the diameter of the centre bore of the protecgulum,
The spring retainer is substantially cup-shaped, formed with multiple cantilever beams on the perisporium of the spring retainer, by institute
During stating centre bore and the rotor that cap unit is axially inserted into the protecgulum described in, the cantilever beam is subject to described
The pressure of the inner peripheral surface of the centre bore of protecgulum and elastic deformation, after the cantilever beam passes through the centre bore, the cantilever
Beam sprung back and the step backstop formed by the rotor and the protecgulum, so as to be carried out to the cap unit axial
It is spacing.
2. camshaft phaser according to claim 1, it is characterised in that the root of the cantilever beam is close to the spring
It is connected with the perisporium of the spring retainer, the top of the cantilever beam is towards the spring retainer bottom wall of retainer
Radial outside and spring cup extension.
3. camshaft phaser according to claim 1, it is characterised in that the perisporium of the spring retainer is formed with portion
The opening of the cantilever beam is enclosed in subpackage.
4. camshaft phaser according to claim 1, it is characterised in that by the perisporium to the spring retainer into
Row punching press and form the cantilever beam.
5. camshaft phaser according to claim 1, it is characterised in that the rotor, which is provided with, accommodates the cantilever beam
The first recess.
6. camshaft phaser according to claim 1, it is characterised in that the rotor is provided with for accommodating the bullet
The concave part of the bottom of spring retainer.
7. camshaft phaser according to claim 1, it is characterised in that the spring retainer is additionally provided with along described
Axially extending raised line, the raised line is engaged through the centre bore of the protecgulum with the second recess of the rotor, so that anti-
Only the cap unit is rotated relative to the rotor.
8. camshaft phaser according to claim 1, it is characterised in that the cap unit by single piece of sheet metal punching press and
Into.
A kind of 9. assemble method of camshaft phaser according to any one of claim 1 to 8, it is characterised in that
Include the following steps：
Assemble the rotor, the stator, the protecgulum and the spring；And
The cap unit is axially inserted into the centre bore of the protecgulum and the rotor described in.
10. a kind of assemble method of camshaft phaser according to claim 7, it is characterised in that include the following steps：
Assemble the rotor, the stator, the protecgulum and the spring；And
The cap unit is axially inserted into the centre bore of the protecgulum and the rotor described in,
Wherein, before the cap unit is axially inserted into centre bore and the rotor of the protecgulum described in, make described
The raised line of spring retainer is aligned with the second recess of the rotor, described after the cap unit is inserted into the rotor
Second recess prevents the cap unit from being rotated relative to the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181155.XA CN107916963A (en) | 2017-11-23 | 2017-11-23 | The assemble method of camshaft phaser and camshaft phaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181155.XA CN107916963A (en) | 2017-11-23 | 2017-11-23 | The assemble method of camshaft phaser and camshaft phaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107916963A true CN107916963A (en) | 2018-04-17 |
Family
ID=61897760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711181155.XA Pending CN107916963A (en) | 2017-11-23 | 2017-11-23 | The assemble method of camshaft phaser and camshaft phaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107916963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102030A (en) * | 2018-10-25 | 2020-05-05 | 舍弗勒技术股份两合公司 | Camshaft phaser |
| CN112513431A (en) * | 2018-09-25 | 2021-03-16 | 舍弗勒技术股份两合公司 | Insert for camshaft phaser and camshaft phaser |
-
2017
- 2017-11-23 CN CN201711181155.XA patent/CN107916963A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112513431A (en) * | 2018-09-25 | 2021-03-16 | 舍弗勒技术股份两合公司 | Insert for camshaft phaser and camshaft phaser |
| CN112513431B (en) * | 2018-09-25 | 2022-11-15 | 舍弗勒技术股份两合公司 | Insert for camshaft phaser and camshaft phaser |
| US11542843B2 (en) | 2018-09-25 | 2023-01-03 | Schaeffler Technologies AG & Co. KG | Insertion piece for camshaft phaser and camshaft phaser |
| CN111102030A (en) * | 2018-10-25 | 2020-05-05 | 舍弗勒技术股份两合公司 | Camshaft phaser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180417 |
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| WD01 | Invention patent application deemed withdrawn after publication |