CN204283529U - A kind of OCV Oil Control Valve of adopting guiding structure - Google Patents
A kind of OCV Oil Control Valve of adopting guiding structure Download PDFInfo
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- CN204283529U CN204283529U CN201420700818.XU CN201420700818U CN204283529U CN 204283529 U CN204283529 U CN 204283529U CN 201420700818 U CN201420700818 U CN 201420700818U CN 204283529 U CN204283529 U CN 204283529U
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- ball
- control valve
- guide
- oil control
- magnetic core
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Abstract
The utility model provides a kind of OCV Oil Control Valve of adopting guiding structure, comprise spool (20), pole shoe (6), core axis (8), magnetic core (14) and electric solenoid pipe assembly (12), between rear yoke cover (10) on magnetic core (14) and electric solenoid pipe assembly (12), guide sleeve (13) is set, core axis (8) is fixedly connected with magnetic core (14), between core axis (8) and pole shoe (6), the guide structure being with ball (19) is set, and form sliding friction between magnetic core (14) one end and guide sleeve (13), the other end is by forming rolling friction between core axis (8) and ball (19).Adopt the utility model the stressed strong point of magnetic core can be shifted at ball place, reduce spool to the torque arm length of the active force of core axis, make to be positioned at the radial load that magnetic core on the right side of ball and guide sleeve bear to reduce, effectively alleviate the wearing and tearing of magnetic core and guide sleeve, make be able to effective raising the working life of OCV Oil Control Valve.
Description
Technical field
The utility model relates to OCV Oil Control Valve technical field, especially relates to the OCV Oil Control Valve of a kind of adopting guiding structure for variable valve timing system of engine.
Background technique
Variable Valve Time obtains and applies more and more widely on new automobile motor, and it can promote power, the moment of torsion of motor, reduces oil consumption and exhaust emissions.OCV Oil Control Valve is the vitals in Variable Valve Time, and the control signal that it sends according to engine control system switches the oil passageway towards cam phaser and controls oil flow rate, thus reaches the object accurately controlling cam phaser corner.
The motion of the magnetic core in existing part OCV Oil Control Valve relies on guide sleeve to support completely, the front and back ends of magnetic core is all supported on guide sleeve, sliding friction is all born in the front end and back end of magnetic core, guide sleeve, the OCV Oil Control Valve of this support guide structure in the course of the work, spring wherein, the inclination of spool, and the disalignment of magnetic core and core axis, all the increase of radial load suffered by magnetic core will be caused, cause the wearing and tearing between guide sleeve and magnetic core to aggravate, the working life of OCV Oil Control Valve is reduced.
Model utility content
The technical problems to be solved in the utility model is: for prior art Problems existing, a kind of OCV Oil Control Valve of adopting guiding structure is provided, the radial load that reduction magnetic core, guide sleeve bear, alleviates the wearing and tearing of magnetic core and guide sleeve, improves the working life of OCV Oil Control Valve.
The technical problems to be solved in the utility model realizes by the following technical solutions: a kind of OCV Oil Control Valve of adopting guiding structure, comprise spool, pole shoe, core axis, magnetic core and electric solenoid pipe assembly, between described magnetic core and electric solenoid pipe assembly, guide sleeve is set, described core axis is fixedly connected with magnetic core, the guide structure being with ball is set between described core axis and pole shoe, and forming sliding friction between described magnetic core one end and guide sleeve, the other end is by forming rolling friction between core axis and ball.
Preferably, the first guide bearing that described guide structure is made up of bearing outside and ball, described bearing outside is fixedly connected with pole shoe one end, inside bearing outside, offer guide groove, and described ball to be arranged in guide groove and can along guide groove axial rolling.
Preferably, endoporus is offered in described pole shoe one end, and the bearing outside of described first guide bearing forms interference fit with the endoporus of pole shoe one end and is fixedly connected with.
Preferably, described guide structure to be coordinated with pole shoe by ball to form, and some guiding grooves offered by described pole shoe, and being provided with in described guiding groove can along the ball of guiding groove axial rolling.
Preferably, described some guiding grooves distribute equably along place pole shoe tail end circumference.
Preferably, described guide structure also comprises the ball spider matched with ball, and described ball spider is spaced apart in the circumferential direction by ball.
Preferably, described guide structure is made up of ball and annular shaft bolster, and described bearing bracket stand main body offers some guide grooves, and described ball to be arranged in guide groove and can along guide groove axial rolling, and described bearing bracket stand is fixedly connected in core axis.
Preferably, described bearing bracket stand main body one end several L shape claws protruding, core axis offers annular groove, and the annular groove in described claw and core axis connects and fixes.
Preferably, several L shape dog rings bearing bracket stand main body circumferences described are uniformly distributed.
Preferably, described core axis in axial direction offers draining through hole, contact end face at spool with core axis and offer drain pan, described drain pan and draining through hole UNICOM.
Compared with prior art, the beneficial effects of the utility model are: owing to being provided with the guide structure of band ball between core axis and pole shoe, make to form sliding friction between magnetic core one end and guide sleeve, the other end is then by forming rolling friction between core axis and ball, reduce the rubbing surface of guide sleeve, the fretting wear of guide sleeve is alleviated; Meanwhile, owing to being rolling friction between core axis and ball, friction factor is little, is conducive to alleviating the magnetic core of core axis rear end and the wearing and tearing of guide sleeve; In addition, after adopting guide structure of the present utility model, the torque arm length of spool to the active force of core axis can be reduced, make to be positioned at the radial load that magnetic core on the right side of ball and guide sleeve bear effectively to reduce, the wearing and tearing of further reduction magnetic core and guide sleeve, enable extend the working life of OCV Oil Control Valve.
Accompanying drawing explanation
Fig. 1 is the sectional view (embodiment 1) of the OCV Oil Control Valve of a kind of adopting guiding structure of the utility model.
Fig. 2 is the plan view of the first guide bearing in Fig. 1.
Fig. 3 is the left view of the first guide bearing in Fig. 1.
Fig. 4 is the sectional view of the first guide bearing in Fig. 1.
Fig. 5 is the sectional view (embodiment 2) of the OCV Oil Control Valve of a kind of adopting guiding structure of the utility model.
Fig. 6 is the sectional view of the guide structure be made up of pole shoe and ball in Fig. 5.
Fig. 7 is the left view of the guide structure be made up of pole shoe and ball in Fig. 5.
Fig. 8 is the sectional view (embodiment 3) of the OCV Oil Control Valve of a kind of adopting guiding structure of the utility model.
Fig. 9 is the sectional view of the guide structure be made up of the second guide bearing and ball in Fig. 8.
Figure 10 is the plan view of the second guide bearing in Fig. 9.
Figure 11 is the left view of the second guide bearing in Fig. 9.
Mark in figure: 1-spring seat, 2-valve pocket, 3-filter screen, 4-first seal ring, 5-pad, 6-pole shoe, 7-second seal ring, 8-core axis, 9-valve shell, yoke cover after 10-, 11-skeleton, 12-electric solenoid pipe assembly, 13-guide sleeve, 14-magnetic core, 15-counterbore, 16-oil drainage hole, 17-elastic washer, 18-first guide bearing, 19-ball, 20-spool, 21-one-way valve, 22-spring, 23-bearing outside, 24-ball spider, 25-guide groove, 26-guiding groove, 27-bearing bracket stand, 28-claw, 29-draining through hole, 30-convex shoulder, 201-drain pan.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, the utility model is described in detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
The OCV Oil Control Valve of a kind of adopting guiding structure as shown in Figure 1, mainly comprise spring seat 1, valve pocket 2, pole shoe 6, core axis 8, valve shell 9, electric solenoid pipe assembly 12, magnetic core 14 and spool 20 and one-way valve 21, electric solenoid pipe assembly 12 wherein comprises skeleton 11 and rear yoke cover 10, described spring seat 1 is fixedly connected with valve pocket 2 one end, valve pocket 2 the other end is fixedly connected with valve shell 9, described spool 20 is arranged in valve pocket 2 inner chamber, arranges spring 22 between spool 20 and spring seat 1; The T-shaped structure of described pole shoe 6, its larger end and electric solenoid pipe assembly 12 are fixedly connected on the inner chamber two ends of valve shell 9 respectively, and being provided with elastic washer 17 between skeleton 11 on the larger end of pole shoe 6 and electric solenoid pipe assembly 12, the Main Function of described elastic washer 17 prevents electric solenoid pipe assembly 12 from loosening.Described valve pocket 2 one end near the larger end of pole shoe 6, and is provided with the first seal ring 4 and seals between valve pocket 2 and pole shoe 6.Described magnetic core 14 is positioned at electric solenoid pipe assembly 12, rear yoke on magnetic core 14 and electric solenoid pipe assembly 12 overlaps the guide sleeve 13 being provided with thin-walled cup-shaped between 10, the opening end of described guide sleeve 13 and being comparatively tightly connected by the second seal ring 7 between small end of pole shoe 6.Be provided with the endoporus of installation first guide bearing 18 in pole shoe 6 one end near valve pocket 2, described first guide bearing 18 presses fit in the endoporus on pole shoe 6 fixing by interference fit, this structure can make the overall structure of OCV Oil Control Valve compacter.Described first guide bearing 18 as shown in Figure 2, Figure 3, Figure 4, comprise bearing outside 23 and ball 19, described bearing outside 23 is fixed with the endoporus interference fit of pole shoe 6 one end near valve pocket 2, U-shaped guide groove 25 is offered inside bearing outside 23, described ball 19 to be arranged in guide groove 25 and can along guide groove 25 axial rolling, and its axial rolling stroke is the axial length of guide groove 25.Described ball 19 adopts steel ball, both can ensure its rolling compressive strength, also can reduce its user cost.
Described core axis 8 rear end is fixedly connected with by interference fit with between magnetic core 14 inner chamber, core axis 8 and magnetic core 14 is linked into an integrated entity, and is synchronized with the movement.In OCV Oil Control Valve working procedure, the oil gas conveniently in magnetic core 14 inner chamber is discharged, and described core axis 8 axial direction offers the counterbore 15 communicated with magnetic core 14 inner chamber, described core axis 8 offers the oil drainage hole 16 communicated with counterbore 15 in the radial direction.Described magnetic core 14 is supported on guide sleeve 13, passes through core axis 8 front support on the ball 19 of the first guide bearing 18 simultaneously.When so just making magnetic core 14 move axially under the driving of electromagnetic force and spring force, magnetic core 14 relies on guide sleeve 13 to support, leading also and between guide sleeve 13 forms sliding friction, meanwhile, core axis 8 front end relies on ball 19 to support, leads and and form rolling friction between ball 19.In order to make core axis 8 and magnetic core 14 connecting body uniform force in movement process, prevent play, increase the stationarity of motion, the quantity of ball 19 suitably can be increased in the first guide bearing 18, and by annular ball spider 24, ball 19 is separated equably along ball spider 24 circumferencial direction, as shown in Figure 3, Figure 4.
When spool 20 is subject to the thrust that spring 22 acts on to the back-end, spool 20 promotes core axis 8 and drives magnetic core 14 to move to the back-end, magnetic core 14 rear end is supported by guide sleeve 13, magnetic core 14 front end is supported on the ball 19 of the first guide bearing 18 by core axis 8, this support, it is rolling friction between core axis 8 and ball 19 that guide structure makes to be formed between magnetic core 14 and guide sleeve 13 one end, one end is the sliding friction between magnetic core 14 and guide sleeve 13, due between core axis 8 and ball 19 for rolling friction, its friction factor is less than sliding friction, by improving frictional fit, reduce the rubbing surface between magnetic core entirety and guide sleeve 13, therefore, alleviate the fretting wear of magnetic core 14 and guide sleeve 13, simultaneously, owing to there is the gap allowing spool 20 to move between spool 20 and valve pocket 2, the installation of spring 22 also may be tilted, the radial load that this just may cause magnetic core 14 to bear in movement process increases, and adopt above-mentioned support, after guide structure, can by the stressed strong point transfer of magnetic core 14 at ball 19 place, reduce the torque arm length of the active force of spool 20 pairs of core axis 8, according to lever principle, be positioned at the radial load that magnetic core on the right side of ball 19 14 and guide sleeve 13 bear just effectively to be reduced, thus reduce further the wearing and tearing of magnetic core 14 and guide sleeve 13, improve the working life of OCV Oil Control Valve.
Embodiment 2
As different from Example 1, cancel the bearing outside 23 of the first guide bearing 18, ball 19 is directly arranged in pole shoe 6.Specifically, as shown in Figure 6, Figure 7, offer some along pole shoe 6 tail end guiding groove 26 circumferentially at the relatively large end of pole shoe 6, be provided with in guiding groove 26 and along the ball 19 of guiding groove 26 axial rolling, and the axial motion stroke of ball 19 can be limited by guiding groove 26 bottom plane and pole shoe 6 tail end end face riveting.Described magnetic core 14 is supported on guide sleeve 13, passes through core axis 8 front support on ball 19 simultaneously.When so just making magnetic core 14 move axially under the driving of electromagnetic force and spring force, magnetic core 14 relies on guide sleeve 13 to support, leading also and between guide sleeve 13 forms sliding friction, simultaneously, core axis 8 front end relies on ball 19 to support, leading also and between ball 19 forms rolling friction, also forms rolling friction between ball 19 and pole shoe 6.Other structures are with embodiment 1.
In order to make core axis 8 and magnetic core 14 connecting body uniform force in movement process, prevent play, increase the stationarity of motion, guiding groove 26 can be arranged equably along pole shoe 6 tail end circumference, and by annular ball spider 24, ball 10 is separated equably along ball spider 24 circumferencial direction, as shown in Figure 6, Figure 7.
Embodiment 3
With the above embodiments 1, embodiment 2 unlike, as shown in Figure 8, Figure 9, second guide bearing is set between core axis 8 and guide sleeve 13, described guide sleeve 13 opening end extends to the outside of the larger end of pole shoe 6, the structure of described second guide bearing as shown in Figure 10, Figure 11, comprise bearing bracket stand 27 and ball 19, described bearing bracket stand 27 main body ringwise, it is offered some guide grooves 25, the equally distributed L shape claw 28 of bearing bracket stand 27 one end several annulate shaft bolster 27 main body circumferences protruding, even to ensure the axially loaded of bearing bracket stand 27.Described ball 19 to be arranged in guide groove 25 and can along guide groove 25 axial rolling, and its axial rolling stroke is the axial length of guide groove 25.Described core axis 8 offers annular groove, and, described second guide bearing one end is connected and fixed by claw 28 and the annular groove in core axis 8, and the other end is close to the convex shoulder 30 in core axis 8, and ball 19 wherein respectively and core axis 8, form rolling friction between guide sleeve 13.Oil gas conveniently in magnetic core 14 inner chamber is discharged, and described core axis 8 axial direction offers draining through hole 29, contacts end face offer drain pan 201 at spool 20 with core axis 8, described drain pan 201 and draining through hole 29 UNICOM.Other structures are with the above embodiments 1.
OCV Oil Control Valve of the present utility model is as the vitals in Variable Valve Time, the control signal that it sends according to engine control system switches the oil passageway towards cam phaser and controls oil flow rate, thus reaches the object accurately controlling cam phaser corner.In order to prevent the impurity ingress engine oil control valve of OCV Oil Control Valve outside inner, valve pocket 2 arranging the oil gas of filter screen 3 to ingress engine oil control valve and filters.Valve pocket 2 also connects one-way valve 21, the oil leakage of OCV Oil Control Valve inside can be stoped by one-way valve 21.For ease of the installation of OCV Oil Control Valve, the valve shell 9 of OCV Oil Control Valve is fixedly connected with the pad 5 of perforate.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. the OCV Oil Control Valve of an adopting guiding structure, comprise spool (20), pole shoe (6), core axis (8), magnetic core (14) and electric solenoid pipe assembly (12), guide sleeve (13) is set between described magnetic core (14) and electric solenoid pipe assembly (12), described core axis (8) is fixedly connected with magnetic core (14), it is characterized in that: between described core axis (8) and pole shoe (6), be provided with the guide structure being with ball (19), and form sliding friction between described magnetic core (14) one end and guide sleeve (13), the other end is by forming rolling friction between core axis (8) and ball (19).
2. the OCV Oil Control Valve of adopting guiding structure according to claim 1, it is characterized in that: the first guide bearing (18) that described guide structure is made up of bearing outside (23) and ball (19), described bearing outside (23) is fixedly connected with pole shoe (6) one end, offer guide groove (25) in bearing outside (23) inner side, described ball (19) to be arranged in guide groove (25) and can along guide groove (25) axial rolling.
3. the OCV Oil Control Valve of adopting guiding structure according to claim 2, it is characterized in that: endoporus is offered in described pole shoe (6) one end, the bearing outside (23) of described first guide bearing (18) forms interference fit with the endoporus of pole shoe (6) one end and is fixedly connected with.
4. the OCV Oil Control Valve of adopting guiding structure according to claim 1, it is characterized in that: described guide structure to be coordinated with pole shoe (6) by ball (19) to form, described pole shoe (6) is offered some guiding grooves (26), and being provided with in described guiding groove (26) can along the ball (19) of guiding groove (26) axial rolling.
5. the OCV Oil Control Valve of adopting guiding structure according to claim 4, is characterized in that: described some guiding grooves (26) distribute equably along place pole shoe (6) tail end circumference.
6. the OCV Oil Control Valve of the adopting guiding structure according to claim 2 or 4, it is characterized in that: described guide structure also comprises the ball spider (24) matched with ball (19), described ball spider (24) is by spaced apart in the circumferential direction for ball (19).
7. the OCV Oil Control Valve of adopting guiding structure according to claim 1, it is characterized in that: described guide structure is made up of ball (19) and annular shaft bolster (27), described bearing bracket stand (27) main body is offered some guide grooves (25), described ball (19) to be arranged in guide groove (25) and can along guide groove (25) axial rolling, and described bearing bracket stand (27) is fixedly connected in core axis (8).
8. the OCV Oil Control Valve of adopting guiding structure according to claim 7, it is characterized in that: described bearing bracket stand (27) main body one end several L shape claws (28) protruding, core axis (8) offers annular groove, and described claw (28) connects and fixes with the annular groove in core axis (8).
9. the OCV Oil Control Valve of adopting guiding structure according to claim 8, is characterized in that: several L shape claw (28) annulate shaft bolster (27) main body circumferences described are uniformly distributed.
10. the OCV Oil Control Valve of the adopting guiding structure according to any one of claim 7-9, it is characterized in that: described core axis (8) in axial direction offers draining through hole (29), contact end face at spool (20) with core axis (8) and offer drain pan (201), described drain pan (201) and draining through hole (29) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700818.XU CN204283529U (en) | 2014-11-20 | 2014-11-20 | A kind of OCV Oil Control Valve of adopting guiding structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700818.XU CN204283529U (en) | 2014-11-20 | 2014-11-20 | A kind of OCV Oil Control Valve of adopting guiding structure |
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| CN204283529U true CN204283529U (en) | 2015-04-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454061A (en) * | 2014-11-20 | 2015-03-25 | 绵阳富临精工机械股份有限公司 | Engine oil control valve with guiding structure |
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2014
- 2014-11-20 CN CN201420700818.XU patent/CN204283529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454061A (en) * | 2014-11-20 | 2015-03-25 | 绵阳富临精工机械股份有限公司 | Engine oil control valve with guiding structure |
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