CN106641242A - Hydraulic parking push rod assembly, automatic transmission and automobile - Google Patents
Hydraulic parking push rod assembly, automatic transmission and automobile Download PDFInfo
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- CN106641242A CN106641242A CN201510725857.4A CN201510725857A CN106641242A CN 106641242 A CN106641242 A CN 106641242A CN 201510725857 A CN201510725857 A CN 201510725857A CN 106641242 A CN106641242 A CN 106641242A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 210000002445 nipple Anatomy 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 description 37
- 239000010720 hydraulic oil Substances 0.000 description 16
- 230000007704 transition Effects 0.000 description 13
- 230000033001 locomotion Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 208000035126 Facies Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3483—Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
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Abstract
The invention provides a hydraulic parking push rod assembly, an automatic transmission and an automobile and aims to enable the hydraulic parking push rod assembly to be convenient to mount. The hydraulic parking push rod assembly comprises a hydraulic cylinder with a first oil hole and a second oil hole; a piston body and a hydraulic joint are arranged in the hydraulic cylinder, so that the hydraulic cylinder is divided into a first sealing chamber and a second sealing chamber which are correspondingly communicated with the first oil hole and the second hole; the second sealing chamber is communicated with a joint chamber of the hydraulic joint; one end of a piston rod of the piston body stretches out of the cylinder top or the cylinder bottom; a parking cam is arranged at one end of the piston rod of the piston body; the hydraulic joint is clamped with the piston rod or separated from the piston rod according to a size relationship between the oil pressure of the first sealing chamber and the total oil pressure of the second sealing chamber and the joint chamber, so that non-parking and parking are achieved. According to the hydraulic parking push rod assembly, the piston body and a hydraulic structure in the hydraulic cylinder are linearly distributed along a direction from the cylinder top to the cylinder bottom, so that the radial size of the hydraulic parking push rod assembly is reduced, thus ensuring that the hydraulic parking push rod assembly is convenient to mount. The hydraulic parking push rod assembly is used in the field of automobiles.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of hydraulic pressure parking push rod assembly, automatic transmission
And automobile.
Background technology
Automatic transmission is a kind of automobile variable speed that can change automatically gear ratio in vehicle travel process
Device.In order to ensure safety of the automobile in taxiing procedures, a set of parking can be installed in automatic transmission typically
Mechanism, to ensure that automobile timeless in the least can be parked on certain position even abrupt slope.
At present, common halting mechanism be hydraulic pressure halting mechanism, including hydraulic pressure parking push rod assembly, parking arm and
The parking gear being set on input shaft；The structure of hydraulic pressure parking push rod assembly is as shown in figure 1, which mainly wraps
The parking piston 3 for including hydraulic cylinder 1 and being located in hydraulic cylinder 1, parking piston 3 are connected on pull bar 2,
And pull bar 2 is stretched out one end of hydraulic cylinder and is arranged with the parking cam 4 for being contacted with parking arm；Hydraulic cylinder 1
On offer for installing the through hole of piston lock pin 50, locking hole, lock piston are provided with parking piston 3
Shotpin 50 is subject to be located at the magnet control outside hydraulic cylinder 1.
When automobile is in parked state, electric magnet no power, piston lock pin 50 are caused in being stuck in locking hole
Parking piston is not along the axial movement of hydraulic cylinder 1, it is ensured that parking cam 4 and parking arm contact, by parking
Arm makes parking gear stop transmission, so as to interrupt the transmission of the power in automatic transmission, it is ensured that automobile can be grown
Phase is in parked state；And when automobile will release parked state, by being powered to electric magnet 6, make electromagnetism
Piston lock pin 50 is pushed by ferrum 6, makes hydraulic oil promote parking piston 3 to stay to hydraulic pressure as is shown in fig. 1
The left side movement of car push rod assembly, so that parking cam 4 is disengaged with parking arm, parking gear does not have
The compacting of parking arm and drive drive axis, enable automatic transmission enter action edge transmission, release automobile
Parked state.
Although above-mentioned hydraulic pressure halting mechanism can be good at realizing the parking function of automobile, due to this liquid
In the hydraulic pressure parking push rod assembly of pressure halting mechanism, piston lock pin 50, electric magnet 6 and parking piston 3 are not
Can be same axially mounted so that the arrangement dispersion of piston lock pin 50, electric magnet 6 and parking piston 3, lead
Cause the radial dimension of hydraulic cylinder excessive, be not easy to assembling.
The content of the invention
In view of this, it is contemplated that proposing a kind of hydraulic pressure parking push rod assembly, to reduce the radial direction of hydraulic cylinder
Size, is easily installed hydraulic pressure parking push rod assembly.
To reach above-mentioned purpose, the technical scheme is that what is be achieved in that：
A kind of hydraulic pressure parking push rod assembly, including the hydraulic cylinder for offering the first oilhole and the second oilhole, along institute
The cylinder top of hydraulic cylinder is stated to the direction of the cylinder bottom of the hydraulic cylinder, in the hydraulic cylinder, piston body is sequentially provided with,
And the hydraulic joint with the inner wall sealing of the hydraulic cylinder, the piston body is located at can be with the hydraulic joint
In engaging and detached piston rod, joint cavity in the hydraulic joint, is carried；Institute is located in the hydraulic cylinder
State part between cylinder top and the piston body and form first annular seal space body, the first annular seal space body with it is described
First oilhole is connected, and the part being located between the piston body and the hydraulic joint in the hydraulic cylinder is formed
Second seal cavity, second seal cavity are connected with second oilhole, second seal cavity with
The joint cavity connection；Stretch out the cylinder top or the cylinder bottom, the piston rod in one end of the piston rod
The one end for stretching out the cylinder top or the cylinder bottom is provided with parking cam；Wherein,
During non-parking, the oil pressure of the first annular seal space body is more than second seal cavity and the joint cavity
Total oil pressure of body, the hydraulic joint are engaged with the piston rod；During parking, the first annular seal space body
Oil pressure is less than total oil pressure of second seal cavity and the joint cavity, the hydraulic joint and the work
Stopper rod is separated.
Preferably, the hydraulic joint includes outer lock sleeve and the interior lock sleeve being located in the outer lock sleeve,
The outer wall of the outer lock sleeve and the piston cylinder inner wall sealing；The outer lock sleeve and the interior lock sleeve it
Between space form coupling cavity, the interior lock sleeve has been internally formed nipple cavity, the nipple
Cavity constitutes the joint cavity with the coupling cavity；First is provided with second seal cavity elastic
Part, one end of first elastic component are connected with the piston body, the other end of first elastic component and institute
Hydraulic cylinder connection is stated, the outer lock sleeve is connected by the second elastic component with the interior lock sleeve, the external lock
Only cover and be connected by the 3rd elastic component with the cylinder bottom；
The outer lock sleeve face relative with the interior lock sleeve is provided with projection, and the interior locking puts and opens up
There is locking via, in the locking via, be provided with the locking ball that can be moved in the locking via, it is described
The lock groove that can coordinate with the locking ball is offered on piston rod；
During non-parking, the locking ball is pressed in the lock groove by the projection；
During parking, the locking ball deviates from the lock groove by the locking via.
Preferably, raised being respectively provided on two sides with can aid in the locking ball to enter and deviate from the lock
The only secondary surface of groove.
Preferably, the piston rod be provided with respectively with second seal cavity and the company of the joint cavity
Logical diversion cavity.
Preferably, the hydraulic cylinder includes that dividing plate, the dividing plate are located at the piston in being located at the hydraulic cylinder
Part between body and the hydraulic joint, the dividing plate are connected by first elastic component with the piston body
Connect；The inner piston rod via for the 4th oilhole being offered on the dividing plate and being passed through for the piston rod, described
Second seal cavity is connected by four oilholes with the joint cavity.
Preferably, when the piston rod stretches out the one end on the cylinder top and is provided with parking cam, the parking cam
It is connected by the 4th elastic component with the cylinder top, the other end of the piston rod is located at the piston body and described
Between hydraulic joint.
Preferably, one end that the piston rod is located between the piston body and the hydraulic joint is machined with work
Stopper rod chamfering.
Preferably, when the piston rod stretches out one end of the cylinder bottom and is provided with parking cam, the parking cam
It is connected by the 4th elastic component with one end that the piston rod stretches out the cylinder bottom, the other end of the piston rod
It is connected on the piston body.
Relative to prior art, hydraulic pressure parking push rod assembly of the present invention has the advantage that：
In the hydraulic pressure parking push rod assembly that the present invention is provided, piston body and hydraulic joint are in hydraulic cylinder along hydraulic pressure
The cylinder top of cylinder is set gradually to the direction of the cylinder bottom of hydraulic cylinder, and the inner wall sealing of hydraulic joint and hydraulic cylinder,
First annular seal space body is the part being located in hydraulic cylinder between the cylinder top of hydraulic cylinder and piston body, the second annular seal space
Body is the part being located in hydraulic cylinder between piston body and hydraulic joint, and the joint cavity carried with hydraulic joint
Body is connected；Therefore, the present invention provide hydraulic pressure parking push rod assembly can by limit the second seal cavity with
Total oil pressure of joint cavity, the relation with the oil pressure of first annular seal space body make piston body drive piston rod in liquid
Move between the cylinder top of cylinder pressure and the cylinder bottom of hydraulic cylinder.When parking is not needed, it is possible to by control first
The oil pressure of seal cavity is more than total oil pressure of second seal cavity and joint cavity, makes hydraulic joint and work
Stopper rod engages, so that it is guaranteed that the parking cam for being located at one end that piston rod stretches out cylinder top or cylinder bottom is taken off with parking arm
From making automobile be in non-parked state；And when needing parking, it is little by the oil pressure for controlling first annular seal space body
In the second seal cavity and total oil pressure of joint cavity, hydraulic joint is made to separate with piston rod, so that it is guaranteed that setting
The parking cam and parking arm contact of one end of cylinder top or cylinder bottom are stretched out in piston rod, makes automobile be in parking shape
State.
By above-mentioned analysis, the hydraulic pressure parking push rod assembly that the present invention is provided makes work by hydraulic control
The one end of stopper rod with lock groove forms the joint similar to hydraulic quick coupling principle to hydraulic joint；Wherein,
The one end of piston rod with lock groove is considered as famale connector, and hydraulic joint is considered as famale connector, it is also possible to
Say the famale connector that hydraulic joint is hydraulic quick coupling；During work, by the oil pressure for controlling first annular seal space body
With second seal cavity and the magnitude relationship of total oil pressure of joint cavity, piston rod and hydraulic joint card are made
Close or separate, realize the non-parking of automobile and the conversion of parked state, without the cooperation of electric magnet, simplify
The structure of hydraulic pressure parking push rod assembly.It is additionally, since piston body and hydraulic joint to arrive along the cylinder top of hydraulic cylinder
The cylinder bottom of hydraulic cylinder is arranged in hydraulic cylinder, i.e., piston body and hydraulic joint are on the axis of hydraulic cylinder, are subtracted
Little radial dimension of the hydraulic pressure parking push rod assembly in hydraulic cylinder, makes piston body and hydraulic joint be integrated into hydraulic pressure
In cylinder, it is ensured that hydraulic pressure parking push rod assembly is easy for installation.
Another object of the present invention is to propose a kind of automatic transmission, existed with reducing hydraulic pressure parking push rod assembly
The radial dimension of hydraulic cylinder, is easily installed hydraulic pressure parking push rod assembly.To reach above-mentioned purpose, the present invention
Technical scheme be realized in：
A kind of automatic transmission, the automatic transmission are provided with the hydraulic pressure as described in above-mentioned technical scheme and stay
Car push rod assembly.
Relative to prior art, automatic transmission of the present invention has following advantage：
The automatic transmission is had relative to prior art with the hydraulic pressure parking push rod assembly of above-mentioned technical proposal
Some Dominant Facies are same, will not be described here.
Another object of the present invention is to a kind of automobile is proposed, to reduce hydraulic pressure parking push rod assembly in hydraulic cylinder
Radial dimension, be easily installed hydraulic pressure parking push rod assembly.To reach above-mentioned purpose, the technology of the present invention
What scheme was realized in：
A kind of automobile, the automobile are provided with the automatic transmission as described in above-mentioned technical scheme.
Relative to prior art, variator of the present invention has the advantage that：
The automobile and the automobile of above-mentioned technical proposal had the advantage that identical, the here relative to prior art
Repeat no more.
Description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In accompanying drawing
In：
Fig. 1 is the structural representation of existing hydraulic pressure parking push rod assembly；
Fig. 2 is that the first concrete structure of the first hydraulic pressure parking push rod assembly provided in an embodiment of the present invention shows
It is intended to；
Fig. 3 is the structural representation of piston rod in Fig. 2；
Fig. 4 is that second concrete structure of the first hydraulic pressure parking push rod assembly provided in an embodiment of the present invention shows
It is intended to；
Fig. 5 is the structural representation of hydraulic cylinder in the first hydraulic pressure parking push rod assembly provided in an embodiment of the present invention
Figure；
Fig. 6 is that the structure of the first hydraulic pressure parking push rod assembly China and foreign countries lock sleeve provided in an embodiment of the present invention is shown
It is intended to；
Fig. 7 is that the structure of interior lock sleeve in the first hydraulic pressure parking push rod assembly provided in an embodiment of the present invention is shown
It is intended to；
Fig. 8 is hydraulic joint and piston in the first hydraulic pressure parking push rod assembly provided in an embodiment of the present invention
Relative motion relation figure of the bar when non-parked state is to parked state；
Fig. 9 is hydraulic joint and piston in the first hydraulic pressure parking push rod assembly provided in an embodiment of the present invention
Relative motion relation figure of the bar when parked state is to non-parked state；
Figure 10 is the first concrete structure of second hydraulic pressure parking push rod assembly provided in an embodiment of the present invention
Schematic diagram；
Figure 11 is second concrete structure of second hydraulic pressure parking push rod assembly provided in an embodiment of the present invention
Schematic diagram；
Figure 12 is that the structure of hydraulic cylinder in second hydraulic pressure parking push rod assembly provided in an embodiment of the present invention is shown
It is intended to；
Figure 13 is the structural representation of piston rod in Figure 11；
Description of reference numerals：
1- hydraulic cylinders, 101- first annular seal space bodies, the second seal cavities of 102-；
The first oilholes of 11-, the second oilholes of 12-, the 3rd oilholes of 13-；
The 4th oilholes of 14-, 15- inner piston rod vias, the outer inner piston rod vias of 16-；
2- pull bars, 3- parking pistons, 30- piston bodies；
31- piston rods, 310- lock grooves, first bodies of rod of 311-；
Second bodies of rod of 312-, 313- piston rod chamferings, 4- parking cams；
5- hydraulic joints, 50- piston lock pins, 500- joint cavitys；
The outer lock sleeves of 51-, 510- are raised, 511- coupling cavitys；
512- secondary surfaces, lock sleeve in 52-, 520- locking vias；
521- nipple cavitys, 53- locking balls, 6- electric magnet；
The 4th elastic components of 7-, the first elastic components of 8-, the second elastic components of 91-；
The 3rd elastic components of 92-.
Specific embodiment
It should be noted that the embodiment and the feature in embodiment in the case where not conflicting, in the present invention
Can be mutually combined.
Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
Refer to Fig. 2 and Fig. 4, and Figure 10 and Figure 11, hydraulic pressure parking push rod provided in an embodiment of the present invention
Assembly includes：The hydraulic cylinder 1 of the first oilhole 11 and the second oilhole 12 is offered, along the cylinder top of hydraulic cylinder 1
To the direction of the cylinder bottom of hydraulic cylinder, piston body 30 and close with the inwall of hydraulic cylinder 1 in hydraulic cylinder 1, is sequentially provided with
The hydraulic joint 5 of envelope, piston body 30 be located at can with hydraulic joint 5 engage and detached piston rod 31 on；
Joint cavity 500 is carried in hydraulic joint 5；The part being located in hydraulic cylinder 1 between cylinder top and piston body 30
First annular seal space body 101 is formed, first annular seal space body 101 is connected with the first oilhole 11,1 middle position of hydraulic cylinder
Part between piston body 30 and hydraulic joint 5 forms the second seal cavity 102, the second seal cavity 102
Connect with the second oilhole 12, the second seal cavity 102 is connected with joint cavity 500；The one of piston rod 31
Cylinder top or cylinder bottom are stretched out in end, and piston rod 31 stretches out cylinder top or one end of cylinder bottom is provided with parking cam 4；Wherein,
During non-parking, the oil pressure of first annular seal space body 101 is more than the second seal cavity 102 and joint cavity 500
Total oil pressure, hydraulic joint 5 engaged with piston rod 31；During parking, the oil pressure of first annular seal space body 101 is little
In the second seal cavity 102 and total oil pressure of joint cavity 500, hydraulic joint 5 is separated with piston rod 31.
During running car, when parking is not needed, hydraulic oil is passed through in first annular seal space body 101, so as to
The oil pressure of control first annular seal space body 101 is more than total oil pressure of the second seal cavity 102 and joint cavity 500,
Make piston body 30 drive piston rod 31 to move to 5 place direction of hydraulic joint, make to be located at piston rod 31 and stretch out
The parking cam 4 of one end of cylinder top or cylinder bottom is separated with parking arm, when hydraulic joint 5 is engaged with piston rod 31
When, can be achieved with the locking of piston rod 31.When parking is needed, liquid is passed through in the second seal cavity 102
Force feed, makes hydraulic oil that joint cavity 500 is entered from the second seal cavity 102, so as to control the first sealing
The oil pressure of cavity 101 is less than total oil pressure of the second seal cavity 102 and joint cavity 500, makes piston body 30
Drive hydraulic stem 31 to move to cylinder top place direction, hydraulic joint 5 is separated with piston rod 31, make piston
Bar 31 is unlocked, the promotion of hydraulic oil of the piston body 30 in the second seal cavity 102 and joint cavity 500
Under, drive piston rod 31 to move to cylinder top place direction, so that being located at piston rod stretches out cylinder top or cylinder bottom
The parking cam 4 and parking arm contact of one end, realizes parking.
The parking state of the hydraulic pressure parking push rod assembly provided by above-described embodiment and the mutual mistake of non-parked state
Ferryman makees process description and understands, piston body 30 and hydraulic joint 5 are in hydraulic cylinder 1 along the cylinder top of hydraulic cylinder 1
Direction to the cylinder bottom of hydraulic cylinder 1 sets gradually, and the inner wall sealing of hydraulic joint 5 and hydraulic cylinder 1, the
One seal cavity 101 is the part being located in hydraulic cylinder 1 between the cylinder top of hydraulic cylinder 1 and piston body 30, the
Two seal cavities 102 are the parts being located in hydraulic cylinder 1 between piston body 30 and hydraulic joint 5, and and liquid
The joint cavity 500 that crimp head 5 is carried is connected；Therefore, the hydraulic pressure parking push rod assembly that the present embodiment is provided
Can pass through to limit total oil pressure of the second seal cavity 102 and joint cavity 500, with first annular seal space body 101
Oil pressure relation, the cylinder for making piston body 30 drive piston rod 31 in the cylinder top of hydraulic cylinder 1 and hydraulic cylinder 1
Move between bottom.When should not parking when, it is possible to by controlling the oil pressure of first annular seal space body 101 more than the
Total oil pressure of two seal cavities 102 and joint cavity 500, makes hydraulic joint 5 engage with piston rod 31, real
Existing piston rod locking, so that it is guaranteed that be located at piston rod 1 stretch out cylinder top or cylinder bottom one end parking cam 4 with
Parking arm departs from, and makes automobile be in non-parked state；And when needing parking, by controlling first annular seal space body
101 oil pressure is less than total oil pressure of the second seal cavity 102 and joint cavity 500, make hydraulic joint 5 with
Piston rod 31 is separated, and unlocks piston rod, so that it is guaranteed that being located at that piston rod 31 stretches out cylinder top or cylinder bottom
Parking cam 4 and the parking arm contact at end, makes automobile be in parked state.
And according to above-mentioned analysis, the hydraulic pressure parking push rod assembly that the present embodiment is provided passes through hydraulic control,
The one end of piston rod 31 with lock groove 310 is made to form similar to hydraulic quick coupling principle to hydraulic joint 5
Joint；Wherein, the one end of piston rod with lock groove is considered as famale connector, and hydraulic joint is considered as
Famale connector, it may also be said to famale connector of the hydraulic joint for hydraulic quick coupling；During work, by control first
The magnitude relationship of total oil pressure of the oil pressure of seal cavity 101 and the second seal cavity 102 and joint cavity 500,
Piston rod 31 is engaged or is separated with hydraulic joint 5, realize the non-parking of automobile and the conversion of parked state, and
The cooperation of electric magnet is not needed, the structure of hydraulic pressure parking push rod assembly is simplified.It is additionally, since piston body 30
It is arranged in hydraulic cylinder 1 along the cylinder top of hydraulic cylinder 1 to the cylinder bottom of hydraulic cylinder 1 with hydraulic joint 5, i.e. piston
Body 30 and hydraulic joint 5 are in the axial direction of hydraulic cylinder 1, reduce hydraulic pressure parking push rod assembly in hydraulic cylinder
1 radial dimension, makes piston body and hydraulic joint be integrated in hydraulic cylinder so that hydraulic pressure parking push rod assembly
It is easy for installation.
It should be noted that when in Fig. 2, Fig. 4, Figure 10 and Figure 11, dotted arrow is parking, first is close
The flow direction of hydraulic oil in envelope cavity 101 and the second seal cavity 102, when solid arrow is non-parking, first
The flow direction of hydraulic oil in seal cavity 101 and the second seal cavity 102；Be additionally, since hydraulic joint 5 with
The inner wall sealing of hydraulic cylinder 1, the joint cavity 500 in hydraulic joint 5 are connected with the second seal cavity 102 again
It is logical, therefore, first annular seal space body 101, and formed by the second seal cavity 102 and joint cavity 500
Locking cavity be variable seal cavity.
In addition, though after piston rod 31 is unlocked, in the second seal cavity 102 and lock chamber 500
Hydraulic oil can promote piston body 30 to drive the movement of 31 cylinder top place direction of piston rod, so as to be located at piston rod
Parking cam 4 on 31 one end for stretching out cylinder top or cylinder bottom can realize parking with parking arm contact；But
Hydraulic oil promotes the effect of piston body 30 limited, in order that piston body 30 can drive piston rod 31 as early as possible
To cylinder top place direction move, so as to make parking cam 4 as early as possible with parking arm contact, realize quick parking；
The first elastic component 8 is provided with limiting the second seal cavity 5 in above-described embodiment；Wherein, the first elastic component 8
One end be connected with piston body 31, the other end is connected with hydraulic cylinder 1.
And in order to more preferably install the first elastic component 8, connect with hydraulic pressure positioned at piston body 30 in hydraulic cylinder 1
Part between 5 is provided with dividing plate, and dividing plate is connected by the first elastic component 8 with piston body 30, is opened on dividing plate
It is provided with the inner piston rod via 15 passed through for piston rod 31.As dividing plate passes through the first elastic component 8 with piston body
Elastic connection, after piston rod 31 is unlocked, the elastic force of the first elastic component 8 can promote 30 band of piston body
Piston bar 31 is moved to cylinder top place direction.And, in order that the second seal cavity 102 and joint cavity
500 realize connection, in dividing plate in addition to opening up inner piston rod via 15, have also opened up the 4th oilhole 14,
To connect the second seal cavity 102 with joint cavity 500 by the 4th oilhole 14, it is being passed through hydraulic oil
Can enter in joint cavity 500 during the second seal cavity 102.
Please continue to refer to Fig. 2 and Fig. 4, and Figure 10 and Figure 11,5 phase of hydraulic joint in above-described embodiment
When the internal lock in the male contact of hydraulic quick coupling, specifically including outer lock sleeve 51 and be located in outer lock sleeve 1
52 are covered only, the outer wall of outer lock sleeve 51 is connected with the inner wall sealing of hydraulic cylinder 1；Outer lock sleeve 51 and internal lock
Only the space between set 52 forms coupling cavity 511, and interior lock sleeve 52 is internally formed nipple cavity 521,
Nipple cavity 521 constitutes joint cavity 500 with coupling cavity 511；Set in second seal cavity 102
The one end for having the first elastic component 8, the first elastic component 8 is connected with piston body 30, the first elastic component 8 it is another
End is connected with hydraulic cylinder 1, and outer lock sleeve 51 is connected by the second elastic component 91 with interior lock sleeve 52, external lock
Only set 51 is connected by the second elastic component 92 with cylinder bottom；Refer to Fig. 6, outer lock sleeve 51 and interior lock sleeve
52 relative faces are provided with raised 510, refer to Fig. 7, locking via 520 is offered on interior lock sleeve 52,
Being provided with locking via 520 can be along the locking ball 53 of the axial movement of locking via 520, piston rod 31
On offer can with locking ball 53 coordinate lock groove 310, refer to Fig. 8, during non-parking, locking ball
53 are pressed in lock groove 310 by raised 510；Fig. 9 is referred to, during parking, locking ball 53 passes through locking mistake
Deviate from lock groove 310 in hole 520.
In above-described embodiment, either piston rod 31 stretches out cylinder top and still stretches out one end of cylinder bottom to be provided with parking convex
Wheel 4, its operation principle is as shown in Figure 8 and Figure 9.Below refer to Fig. 8 and Fig. 9, to above-mentioned enforcement
The operation principle of the hydraulic pressure parking push rod assembly that example is provided is described.
In non-parking, locking ball 53 is in lock position, i.e. locking ball 53 with projection 510 in liquid to automobile
The radially position correspondence of cylinder pressure 1；Illustrate in other words, locking ball 53 is pressed in lock groove 310 by raised 510
Face (convenient being referred to as raised top surface to be described below) contact with locking ball 53；When parking is needed, please
Refering to Fig. 8, hydraulic oil is passed through using the second oilhole 12 in the second seal cavity 102, makes the second annular seal space
Oil pressure of the total oil pressure of body 102 and joint cavity 500 more than first annular seal space body 101, due to during non-parking,
Piston rod 31 is locked, therefore, joint cavity 500 is entered by the hydraulic oil that the second seal cavity 102 is passed through
Afterwards, drive outer lock sleeve 51 to overcome the elastic force of the 3rd elastic component 92, move to cylinder bottom place direction；And by
When non-parking, locking ball 53 is pressed in lock groove 310 (see Fig. 8 A) by raised 510, now interior lock sleeve
52 is irremovable；Therefore, when outer lock sleeve 51 is moved to cylinder top place direction, outer lock sleeve 51
On projection 510 can with locking via 520 on interior lock sleeve 52 in locking ball 53 relative position occur
Change, so that raised 510 cannot continue locking ball 53 is pressed in lock groove 310, such piston rod
310 would not be locked and can move, and locking ball 53 can then move to raised 510 near piston body 30
Side (refers to Fig. 8 B).Further, since total oil pressure of the second seal cavity 102 and joint cavity 500
More than piston body 30 and outer lock sleeve 51 are located in the oil pressure of first annular seal space body 101, and hydraulic cylinder 1
Part passes through 8 elastic connection of parking spring with piston body 30, therefore, piston body 30 is in the first elastic component 8
And second seal cavity 102 and joint cavity 500 total oil pressure promotion under, piston rod 31 can be driven
Quickly move to cylinder top place direction, so that the parking that piston rod 31 is stretched out on one end of cylinder top or cylinder bottom is convex
Wheel 4 and parking arm contact, realize parking.
And, during piston body 30 can drive piston rod 31 to move to cylinder top place direction, by
Constantly increase in the cumulative volume of the second seal cavity 102 and joint cavity 500, the 3rd elastic component 92 is by certainly
Body promotes outer lock sleeve 51 to drive locking ball 53 to be returned to lock position because of the restoring force produced by compression.
When parking is not needed, Fig. 9 is referred to, led to in first annular seal space body 101 using the first oilhole 11
Enter hydraulic oil, oil pressure is made more than the second seal cavity 102 and total oil pressure of joint cavity 500, with first
The oil pressure of seal cavity 101 is increasing, and piston body 31 is with piston rod 31 to 5 side of place of hydraulic joint
It is mobile to (could also say that cylinder bottom place direction), make that piston rod 31 stretches out cylinder top or one end of cylinder bottom is provided with
Parking cam 4 separate with parking arm；When piston rod 31 moves to lock position, touch and raised position
Corresponding locking ball 53 is put, piston rod 31 can promote locking ball 53 to drive interior lock sleeve 52 to overcome first
The elastic force of elastic component 91, moves to cylinder bottom place direction, and such locking ball 53 is just pushed to cylinder by piston rod 31
Move (see Fig. 9 B) in bottom place direction；And due to locking ball 53 can along the axial movement of locking via 520,
Locking ball 53 is promoted to move to cylinder bottom place direction in piston rod 31, and the position of locking ball 53 and projection 510
Put when staggering, without raised 510 on the inwall of outer lock sleeve 51, locking ball 53 just can be along locking via
Move in 520 outside lock sleeve, 52 place direction；It is when locking ball 53 is fully located at locking via 520, living
Although stopper rod 31 is still moved to cylinder bottom place direction, which can not drive locking ball 53 and interior lock sleeve 52
Move to cylinder bottom place direction.
And as piston rod 31 no longer drives interior lock sleeve 52 to move to cylinder bottom place direction；Therefore, second
Using itself, because the restoring force produced by compression can just be promoted, interior lock sleeve 52 drives locking ball 53 to elastic component 91
(could also say that to raised 510 and be located at a cylinder top side shifting farther out) to the movement of cylinder top place direction, so that
Locking ball is returned to lock position；When locking ball moves to raised 510 apart from cylinder top side farther out, quilt
Raised 310 side is stopped and cannot advance, but as interior lock sleeve 52 does not also drive locking ball 53
It is returned to lock position；Therefore, locking ball 53 can be slided into along raised 310 side and be held on piston rod 31
If lock groove 310 in, now interior lock sleeve 52 drives locking ball 53 just be returned to lock position,
I.e. raised top surface position corresponding with 53 position of locking ball (see Fig. 9 A).
As locking ball is returned to lock position under the drive of interior lock sleeve 52, interior lock sleeve 53 will not be again
Locking ball 53 is driven to move to cylinder top place direction, so that locking ball lock piston bar 31, piston rod 31
After being locked out, just non-parked state can be kept.
It should be noted that piston rod 31 promotes locking ball 53 to drive interior lock sleeve 52 to overcome the first elastic component
91 elastic force, when moving to cylinder bottom place direction, outer lock sleeve 51 is between outer lock sleeve 51 and cylinder bottom
In the presence of 3rd elastic component 92, remains stationary is motionless.And, piston rod 31 is driven in promotion locking ball 53
Interior lock sleeve 52 overcomes the elastic force of the first elastic component 91, during moving to cylinder bottom place direction, can be right
Locking ball 53 applies a power upwards, and outwards 51 place direction of lock sleeve is moved faster to enable locking ball
It is dynamic.
It should be noted that can be seen that by the operation principle description of above-mentioned hydraulic pressure parking push rod assembly
When non-parked state is to parked state transition, locking ball 53 enter lock groove 310 in, and parked state to
During non-parked state transition, locking ball is deviate from from lock groove 310, the projection on outer lock sleeve 51
510 side；It can be seen that, in mutual transient process of the non-parked state with parked state, locking ball 53 exists
The position radially of hydraulic cylinder 1 is variable.
And, the locking degree of piston rod 31 in the hydraulic pressure parking push rod assembly that above-described embodiment is provided can be with
Limited by the quantity of regulation locking ball 53.Certainly due to locking ball 53 and lock groove 310 be it is corresponding,
After the quantity adjustment of locking ball, the quantity of lock groove 310 is also required to be adjusted correspondingly.Preferably,
Can by locking ball 53 being arranged circumferentially on interior lock sleeve 52 along interior lock sleeve 52, and correspondence position certainty
Open up and 520 corresponding locking via 520 of locking ball.
In order to improve parked state to the speed of non-parked state transition, it is right to set about in terms of following two
The hydraulic pressure parking push rod assembly that above-described embodiment is provided is optimized.
On the one hand, diameter of the hole depth of the locking via 520 in above-described embodiment less than locking ball 53, so
When parked state is to non-parked state transition, piston rod 31 runs to interior locking lock set and stops 53 institute of ball in place
When putting, could contact with locking ball 53, otherwise locking ball 53 can be fully located in locking via 520, it is living
Stopper rod 31 cannot be contacted with locking ball 53, so as to realize non-parking.And, locking via 520
Hole depth with raised 510 height sum more than or equal to locking ball 53 diameter, so in parked state to non-
During parked state transition, locking ball 53 is applied after a power upwards by piston rod 31, and locking ball 53 is along lock
Only 520 outside lock sleeve of via, 51 place direction movement, ability locking ball 53 are fully located at locking via 520,
Although ensureing that piston rod 31 is still moved to cylinder bottom place direction, which can not drive locking ball 53 and internal lock
Only set 52 is moved to cylinder bottom place direction, so that the second elastic component 91 can be using itself because produced by compression
Restoring force make interior lock sleeve 53 drive locking ball 53 to move to 30 place direction of piston body, so as to realize staying
Car state smoothly transits to non-parked state.
On the other hand, piston rod 31 is less with the radius that locking ball 53 touches place at first, and piston rod
31 be provided with lock groove 310 position radius it is larger, and the different portion of the two different radiis on piston rod 31
Divide and connected by intermediate incline (secondary surface 512 i.e. above)；So when locking ball 53 and intermediate incline connect
After touch, intermediate incline can apply a power to locking ball 53, and this power can be divided into cylinder bottom place direction
Power and make the power that locking ball 53 moved along 520 outside lock sleeve of locking via, 51 place direction, so as to carry
The speed that smoothly transits of the high parked state to non-parked state.
In addition, in order to avoid parked state to non-parked state transition, and non-parked state is to parked state
To the abrasion caused by locking ball 53 during transition；Fig. 6 is referred to, and energy is respectively provided with raised 510 both sides
Locking ball 53 is enough aided in enter and deviate from the secondary surface 512 of lock groove 310.Or by projection 510
Structure is optimized, and makes projection itself have the function of secondary surface 512.For example, it is convex in above-described embodiment
Play 510 faces relative with the inwall of outer lock sleeve 51 and be defined as raised bottom surface, raised 510 by locking ball 53
Face in press-in lock groove 310 is defined as raised top surface, and the area of raised top surface less than the face of raised bottom surface
Product；As locking ball 53 is pressed into the face in lock groove 310 by raised top surface, the relatively raised bottom surface phase of its area
To less, therefore, raised 510 this structure can improve the contact that locking ball 53 is contacted with projection top surface
The pressure born by face unit area, so as to preferably locking ball 53 is pressed onto in lock groove 310.
In addition, raised top surface can be connected by inclined-plane lock sleeve inclined-plane 512 with raised bottom surface, thus can
The face on a similar slope is formed, is enable locking ball 53 convenient along slope entrance or is deviate from lock groove 310,
Locking ball 53 is made to roll to raised 510 side along lock sleeve inclined-plane 512 from lock groove 310, or from projection
During 510 side enters lock groove 310, it is to avoid suffer excessive wear.And, lock groove 310
Inwall can also be cambered surface, the notch area of lock groove 310 is larger, and bottom land area is less, to be formed
The smooth bowl structure that is open is similar to, to reduce when locking ball 53 passes in and out lock groove 310, lock groove
Resistance of 310 inwall to locking ball 310, further reduces parked state and non-parked state alternation procedure
In abrasion that locking ball 53 is caused.
It should be noted that in order that hydraulic oil more can be quickly entered by the second seal cavity 102
In joint cavity 500, realize the quick parking of profit, be provided with piston rod 31 respectively with the second seal cavity
102 with the diversion cavity for connecting of joint cavity 500.So it is being passed through to the second cavity using the second oilhole 12
During hydraulic oil, hydraulic oil can also utilize the diversion cavity of piston rod 31 to enter in joint cavity 500, make hydraulic pressure
Oil is more quickly full of the second seal cavity 102 and joint cavity 500.
It should be noted that in the hydraulic pressure parking push rod assembly that provides of above-described embodiment, either parking cam
4 is to be located at one end that piston rod 31 stretches out cylinder top or cylinder bottom, its operation principle all same.But, outer locking
The shape of set 51, interior lock sleeve 52 and piston rod 31 is necessarily different.For apparent explanation
Parking cam 4 on piston rod 31 is located at piston rod 31 and stretches out cylinder top or stretch out above-mentioned reality during one end of cylinder bottom
The difference of the hydraulic pressure parking push rod assembly structure of example offer is applied, below in conjunction with accompanying drawing by the liquid of above-described embodiment
Pressure parking push rod assembly is divided into two kinds of situations and is described in detail.
The first situation：Fig. 2 and Fig. 4 is referred to, piston rod 31 stretches out the one end on cylinder top and is provided with parking cam
When 4, parking cam 4 is connected by the 4th elastic component 7 with cylinder top, and the other end of piston rod 31 is located at piston
Between body 30 and hydraulic joint 1.In this case, Fig. 5 is referred to, the cylinder bottom of hydraulic cylinder 1 offers energy
Piston rod 31 is enough made to pass the outer piston bar via 16 on cylinder top；Fig. 6 is referred to, outer lock sleeve 51 is one
Cavity body structure with opening；Fig. 7 is referred to, the 3rd oilhole 13 is offered on interior lock sleeve 52, so
Can guarantee that nipple cavity 521 is connected with coupling cavity 511.
The structure of the piston rod 31 in above-described embodiment also as shown in figures 2 or 4, is specifically included and is connected to work
First body of rod 311 of 30 one side of cock body, and second body of rod 312 of piston body another side is connected to, second
The body of rod 312 stretches out cylinder top by outer piston bar via 16, and parking cam 4 is located at second body of rod 312
Stretch out the one end on cylinder top；Lock groove 310 is opened up on first body of rod 311, first body of rod 311 stretches to interior locking
Cover 52 one end and be machined with piston rod chamfering 313.
In transition of the parked state to non-parked state, first body of rod 311 after locking ball is touched,
One body of rod 311 is stretched to the piston rod chamfering 313 of 52 one end of interior lock sleeve and is contacted with locking ball, gives locking ball
53 apply a power, and this power can be divided into the power to cylinder bottom place direction and make locking ball 53 along locking mistake
The power of 520 outside lock sleeve of hole, 51 place direction movement.Therefore, interior lock sleeve is stretched in first body of rod 311
52 one end machining piston bar chamferings 313 can accelerate parked state to the transition of non-parked state.
In order to further speed up parked state to the transition of non-parked state, can also be by lock groove 310
It is closer from piston rod chamfering 313 that position on one body of rod 311 is arranged, so in locking ball 53 along locking
520 outside lock sleeve of via, 51 place direction, moves to locking ball 53 and is fully located at locking via 520
During state, although as piston rod 31 is still moved to cylinder bottom place direction, and piston rod 31 can not drive
Locking ball 53 and interior lock sleeve 52 are moved to cylinder bottom place direction, therefore, lock groove 310 and locking ball 53
Can be engaged in most short distance, parked state is improved to non-parked state transition speed so as to reach
Purpose.
It should be noted that referring to Fig. 3, piston rod 31 can be solid construction as shown in Figure 2,
It can be class hollow-core construction as shown in Figure 4.When piston rod 31 is hollow-core construction, the sky of piston rod 31
Center portion divides which equivalent to the diversion cavity that above-described embodiment is mentioned；It is that class is empty specific to the piston rod 31 shown in Fig. 3
During core structure, as lock groove 310 is arranged on first body of rod 311, therefore, diversion cavity is opened in the first bar
On body 311, to realize that diversion cavity connects the second seal cavity 102 and joint cavity 500.
Second situation：Refer to Figure 10 and Figure 11, piston rod 31 stretches out one end of cylinder bottom, and to be provided with parking convex
When taking turns 4, one end that parking cam 4 stretches out cylinder bottom with piston rod 31 is connected by the 4th elastic component 7, piston
The other end of bar 31 is connected on piston body 30.In this case, Figure 13, the cylinder of hydraulic cylinder 1 are referred to
Bottom is provided with outer piston bar via 16, and piston rod 31 must pass through interior lock sleeve 52 and outer lock sleeve 51
Outer piston bar via 16 from cylinder bottom stretches out.Although and the concrete structure of piston rod 31 still includes first
The body of rod 311 and second body of rod 312, but one end of first body of rod 311 is connected on piston body 30, the other end
It is connected with one end of second body of rod 312, the other end of second body of rod 312 passes through interior lock sleeve 52 and external lock
Only set 51 is stretched out from the outer piston bar via 16 of cylinder bottom, and parking cam 4 is located at second body of rod 312 and stretches out cylinder
The one end at bottom, offers lock groove 310 on first body of rod 311.
In addition, in order to improve parked state to the speed of non-parked state transition, by limiting first body of rod 311
Radius be more than second body of rod 312, and first body of rod 311 and second body of rod have cambic inclined-plane, should
The principle on inclined-plane is as the first situation, it is possible to increase speed of the parked state to non-parked state transition.
It should be noted that piston rod 31 can be shown in class hollow-core construction as shown in Figure 10 or Figure 11
Solid construction；And when the mechanism hollow using class as shown in Figure 10 of piston rod 31, the sky in piston rod 31
The diversion cavity that center portion point is mentioned equivalent to above-described embodiment；It is that class is empty specific to the piston rod 31 shown in Figure 13
During core structure, due to opening up lock groove 310 on first body of rod 311, therefore, diversion cavity is opened in piston rod 31
First body of rod 311 on, during so that first body of rod 311 moving to interior lock sleeve 52, by hydraulic oil by leading
The nipple cavity 521 that stream chamber is poured in interior lock sleeve 52.
It should be noted that in above-mentioned two situations, parking cam 4 is either elastic by the 4th with cylinder top
Part 7 connects, or the one end for stretching out cylinder bottom with piston body is connected by the 4th elastic component 7, and which is from power
Learn angle to set out, so that parking cam 4 is when with parking arm contact, 4 applying power of parking cam can be given,
Ensure that parking cam 4 keeps contacting with parking arm, enable parking cam 4 by parking arm to parking gear
Pressure, so as to ensure that parking gear can not be rotated, maintains parked state.
In addition, the first elastic component 8, the second elastic component 91, the 3rd elastic component 92 in above-described embodiment,
The range of choice of four elastic components is wider, can be common spring, or other bullets that can realize
Property part, will not be described here.
The embodiment of the present invention additionally provides a kind of automatic transmission, and the automatic transmission is provided with such as above-mentioned technology
The hydraulic pressure parking push rod assembly that scheme is mentioned.
Relative to prior art, automatic transmission provided in an embodiment of the present invention has following advantage：
The hydraulic pressure parking push rod assembly that the automatic transmission is mentioned with above-mentioned technical proposal is relative to prior art institute
Have the advantage that identical, will not be described here.
The embodiment of the present invention additionally provides a kind of automobile, and automobile is provided with the hydraulic pressure mentioned such as above-mentioned technical scheme
Parking push rod assembly.
Relative to prior art, automobile provided in an embodiment of the present invention has the advantage that：
The automobile is had relative to prior art with the hydraulic pressure parking push rod assembly that above-mentioned technical proposal is mentioned
Dominant Facies are same, will not be described here.
Presently preferred embodiments of the present invention is the foregoing is only, it is not to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in this
Within bright protection domain.
Claims (10)
1. a kind of hydraulic pressure parking push rod assembly, it is characterised in that including offering the first oilhole (11) and
The hydraulic cylinder (1) of two oilholes (12), along the cylinder top of the hydraulic cylinder (1) to the hydraulic cylinder (1)
The direction of cylinder bottom, be sequentially provided with the hydraulic cylinder (1) piston body (30) and with the hydraulic cylinder (1)
Inner wall sealing connection hydraulic joint (5), the piston body (30) is located at can be with the hydraulic joint
(5), in engaging and detached piston rod (31), in the hydraulic joint (5), carry joint cavity (500)；
The part being located in the hydraulic cylinder (1) between the cylinder top and the piston body (30) forms first and seals
Cavity (101), the first annular seal space body (101) are connected with first oilhole (11), the hydraulic pressure
It is close that the part being located in cylinder (1) between the piston body (30) and the hydraulic joint (5) forms second
Envelope cavity (102), second seal cavity (102) connected with second oilhole (12), and described the
Two seal cavities (102) are connected with the joint cavity (500)；The piston rod (31) is stretched out described
One end of cylinder top or the cylinder bottom is provided with parking cam (4)；Wherein,
During non-parking, the oil pressure of the first annular seal space body (101) is more than second seal cavity (102)
With total oil pressure of the joint cavity (500), the hydraulic joint (5) and the piston rod (31) card
Close；During parking, the oil pressure of the first annular seal space body (101) is less than second seal cavity (102)
With total oil pressure of the joint cavity (500), the hydraulic joint (5) and the piston rod (31) point
From.
2. hydraulic pressure parking push rod assembly according to claim 1, it is characterised in that the hydraulic joint
(5) including outer lock sleeve (51) and the interior lock sleeve (52) being located in the outer lock sleeve (51), institute
State the outer wall of outer lock sleeve (51) and the inner wall sealing of the hydraulic cylinder (1)；The outer lock sleeve (51)
Coupling cavity (511), the interior lock sleeve (52) are formed with the space between the interior lock sleeve (52)
It has been internally formed nipple cavity (521), the nipple cavity (521) and the coupling cavity (511)
Constitute the joint cavity (500)；The first elastic component (8) is provided with second seal cavity (102),
One end of first elastic component (8) is connected with the piston body (30), first elastic component (8)
The other end be connected with the hydraulic cylinder (1), the outer lock sleeve (51) and the interior lock sleeve (52)
Connected by the second elastic component (91), the outer lock sleeve (51) passes through the 3rd bullet with the cylinder bottom
Property part (92) connection；
The outer lock sleeve (51) face relative with the interior lock sleeve (52) is provided with raised (510),
Offer on the interior lock sleeve (52) in locking via (520), the locking via (520) and be provided with energy
Enough locking balls (53) moved in the locking via (520), offer on the piston rod (31)
The lock groove (310) that can coordinate with the locking ball (53)；
During non-parking, the locking ball (53) is pressed in the lock groove (310) by the projection (510)
It is interior；
During parking, the locking ball (53) deviates from the lock groove (310) by the locking via (520).
3. hydraulic pressure parking push rod assembly according to claim 2, it is characterised in that the projection (510)
Be respectively provided on two sides with the locking ball (53) can be aided in enter and deviate from the auxiliary of the lock groove (310)
Principal surface (512).
4. hydraulic pressure parking push rod assembly according to claim 1, it is characterised in that the piston rod (31)
It is provided with the water conservancy diversion respectively with the connection of second seal cavity (102) and the joint cavity (500)
Chamber.
5. hydraulic pressure parking push rod assembly according to claim 1, it is characterised in that the hydraulic cylinder (1)
Including dividing plate, the dividing plate is located at the piston body (30) and the hydraulic pressure in being located at the hydraulic cylinder (1)
Part between joint (5), the dividing plate is with the piston body (30) by first elastic component (8)
Connection；The inner carrier for the 4th oilhole (14) being offered on the dividing plate and being passed through for the piston rod (31)
Bar via (15), the 4th oilhole (14) is by second seal cavity (102) and the joint cavity
Body (500) is connected.
6. the hydraulic pressure parking push rod assembly according to any one of Claims 1 to 5, it is characterised in that institute
When stating piston rod (31) and stretching out the one end on the cylinder top and be provided with parking cam (4), the parking cam (4)
It is connected by the 4th elastic component (7) with the cylinder top, the other end of the piston rod (31) is located at the work
Between cock body (30) and the hydraulic joint (1).
7. hydraulic pressure parking push rod assembly according to claim 6, it is characterised in that the piston rod (31)
One end between the piston body (30) and the hydraulic joint (1) is machined with piston rod chamfering (313).
8. the hydraulic pressure parking push rod assembly according to any one of Claims 1 to 5, it is characterised in that institute
When stating piston rod (31) and stretching out one end of the cylinder bottom and be provided with parking cam (4), the parking cam (4)
The one end for stretching out the cylinder bottom with the piston rod (31) is connected by the 4th elastic component (7), the piston
The other end of bar (31) is connected on the piston body (30).
9. a kind of automatic transmission, it is characterised in that the automatic transmission is provided with such as claim 1-8
Any one of hydraulic pressure parking push rod assembly.
10. a kind of automobile, it is characterised in that the automobile is provided with and as claimed in claim 9 becomes automatically
Fast device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725857.4A CN106641242B (en) | 2015-10-30 | 2015-10-30 | A kind of hydraulic parking push rod assembly, automatic transmission and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725857.4A CN106641242B (en) | 2015-10-30 | 2015-10-30 | A kind of hydraulic parking push rod assembly, automatic transmission and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106641242A true CN106641242A (en) | 2017-05-10 |
| CN106641242B CN106641242B (en) | 2018-12-11 |
Family
ID=58830567
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510725857.4A Active CN106641242B (en) | 2015-10-30 | 2015-10-30 | A kind of hydraulic parking push rod assembly, automatic transmission and automobile |
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| CN108799490A (en) * | 2018-07-19 | 2018-11-13 | 中国第汽车股份有限公司 | A kind of automatic transmission is with being mechanically integrated formula hydraulic pressure halting mechanism and its parking method |
| CN110107686A (en) * | 2019-05-30 | 2019-08-09 | 杰锋汽车动力***股份有限公司 | A kind of gearbox parking locking mechanism |
| CN110360316A (en) * | 2018-04-11 | 2019-10-22 | 上海汽车集团股份有限公司 | A kind of gearbox and its automatic parking executive device |
| CN110469668A (en) * | 2018-05-09 | 2019-11-19 | Fte汽车有限责任公司 | For activating the parking lock module of the parking lock in motor vehicles |
| WO2020057685A1 (en) * | 2018-09-21 | 2020-03-26 | Schaeffler Technologies AG & Co. KG | Park lock actuator arrangement |
| EP3734122A1 (en) * | 2019-04-30 | 2020-11-04 | SVM Schultz Verwaltungs-GmbH & Co. KG | Locking unit and method |
| CN113944668A (en) * | 2021-11-03 | 2022-01-18 | 山推工程机械股份有限公司 | Pilot control system |
| WO2022078478A1 (en) * | 2020-10-15 | 2022-04-21 | 中国第一汽车股份有限公司 | Hydraulic control system for automatic transmission |
| WO2022126606A1 (en) * | 2020-12-18 | 2022-06-23 | Fte Automotive (Taicang) Co., Ltd. | A parking lock system and a motor vehicle and/or an electric vehicle including such parking lock system |
| CN115234651A (en) * | 2022-06-30 | 2022-10-25 | 中国第一汽车股份有限公司 | Parking mechanism and automatic transmission with same |
| WO2022247297A1 (en) * | 2021-05-25 | 2022-12-01 | 上海纳铁福传动***有限公司 | Parking executing mechanism |
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| WO2022126606A1 (en) * | 2020-12-18 | 2022-06-23 | Fte Automotive (Taicang) Co., Ltd. | A parking lock system and a motor vehicle and/or an electric vehicle including such parking lock system |
| WO2022247297A1 (en) * | 2021-05-25 | 2022-12-01 | 上海纳铁福传动***有限公司 | Parking executing mechanism |
| CN113944668A (en) * | 2021-11-03 | 2022-01-18 | 山推工程机械股份有限公司 | Pilot control system |
| CN115234651A (en) * | 2022-06-30 | 2022-10-25 | 中国第一汽车股份有限公司 | Parking mechanism and automatic transmission with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106641242B (en) | 2018-12-11 |
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Effective date of registration: 20191113 Address after: 071000 No.75, Dongsheng Road, Lianchi District, Baoding City, Hebei Province Patentee after: Beehive transmission technology Hebei Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
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