CN107559419A - Halting mechanism - Google Patents
Halting mechanism Download PDFInfo
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- CN107559419A CN107559419A CN201710765658.5A CN201710765658A CN107559419A CN 107559419 A CN107559419 A CN 107559419A CN 201710765658 A CN201710765658 A CN 201710765658A CN 107559419 A CN107559419 A CN 107559419A
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- Prior art keywords
- parking
- swing arm
- rack
- gear
- halting mechanism
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Abstract
The invention discloses a kind of halting mechanism.The halting mechanism includes：Housing；Parking gear, the parking gear have the parking gear gear teeth；Parking swing arm, the parking swing arm are rotatably arranged on the housing around parking arm shaft；Parking rack, the parking rack is arranged in the parking swing arm and rotated with the parking swing arm with closer or far from the parking gear, the parking rack can move relative to the parking swing arm along the length direction of the parking rack, it is provided with the parking rack and is arranged for the parking rack gear teeth with the parking gear gear teeth meshing, multiple parking rack gear teeth along the length direction.According to the halting mechanism of the present invention, utilize the parking gear gear teeth, the parking rack gear teeth, solve the problems, such as the interference of tooth of parking rack and parking gear during parking, while using the removable dynamic characteristic of parking rack, further optimize the interference of tooth problem of parking rack and parking gear.
Description
Technical field
The present invention relates to automotive field, in particular to a kind of halting mechanism.
Background technology
At present, automatic parking mechanism is had been equipped with various, most representational structure is ratchet spine bar cone pulley type.Its
Parking principle is that spine bar is swung, and single ratchet of spine bar enters in ratchet teeth groove, and then cone pulley, which chokes i.e. locked spine bar, makes ratchet card
Firmly ratchet can not rotate, and reach the purpose of parking.But there is problems with this structure：Ratchet easily occurs not to tooth with ratchet
Phenomenon, it cannot ensure that ratchet accurately enters teeth groove during parking.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem of the prior art to a certain extent.Therefore, this hair
It is bright to propose a kind of halting mechanism, it can improve not to tooth phenomenon.
Halting mechanism according to embodiments of the present invention includes：Housing；Parking gear, the parking gear have parking gear
The gear teeth；Parking swing arm, the parking swing arm are rotatably arranged on the housing around parking arm shaft；Parking rack, it is described
Parking rack is arranged in the parking swing arm and rotated with the parking swing arm with closer or far from the parking gear, described
Parking rack can move relative to the parking swing arm along the length direction of the parking rack, is provided with the parking rack
For the parking rack gear teeth with the parking gear gear teeth meshing, multiple parking rack gear teeth are arranged along the length direction
Row.
Halting mechanism according to embodiments of the present invention, using the parking gear gear teeth, the parking rack gear teeth, solves parking
The interference of tooth problem of parking rack and parking gear in journey, while utilize the removable dynamic characteristic of parking rack, further optimization
The interference of tooth problem of parking rack and parking gear.
According to some embodiments of the present invention, the parking rack includes：Rack body and it is connected with the rack body
Sliding part, the sliding part is slidably disposed in the parking swing arm along the length direction.
Specifically, chute is provided with the parking swing arm, the chute extends along the length direction, the sliding part
It is arranged in the chute.
Alternatively, connecting portion is provided between the sliding part and the rack body so that the sliding part and the tooth
Bar body is abreast spaced apart.
Specifically, the parking swing arm includes：Swing arm body and swing arm sprue, the remote parking swing arm of the chute
The open at one end of axle, the swing arm sprue closure is at the open end of the chute.
According to some embodiments of the present invention, the parking swing arm has drive end and sliding end, and the drive end is suitable to
Driven by drive device, the sliding end is suitable to slide on slide on the housing.
Further, be provided with slip curved surface on the slide, the slip curved surface be using the parking arm shaft in
One section of arc surface of mandrel line.
Alternatively, the drive end of the parking swing arm is provided with driving groove, and the drive end is located at the parking swing arm
Upper end, the sliding end is located at the lower end of the parking swing arm, the middle part of parking swing arm described in the parking swing arm axis connection
Region.
According to some embodiments of the present invention, the parking swing arm has drive end and sliding end, and the drive end is suitable to
Driven by drive device, the sliding end is suitable to slide on slide on the housing, and it is bent that slip is provided with the slide
Face, it is described to slide one section of arc surface that curved surface is the axis centered on the parking arm shaft；
The parking swing arm includes：Swing arm body and swing arm sprue, the one of the remote parking arm shaft of the chute
End is opened wide, and the swing arm sprue closure is at the open end of the chute；
The swing arm sprue has sliding-type face, and the sliding-type face is bonded with the slip curved surface face face.
Alternatively, the crest top land of the parking rack gear teeth is the arc of evagination.
Brief description of the drawings
Fig. 1 is the schematic diagram of halting mechanism；
Fig. 2 is the schematic diagram of parking rack and the partial enlarged drawing of parking swing arm；
Fig. 3 is the schematic diagram of drive device；
Fig. 4 is the schematic diagram of the first stage of parking braking；
Fig. 5 is the schematic diagram of the second stage of parking braking；
Fig. 6 is the schematic diagram of the phase III of parking braking；
Fig. 7 is parking gear and the excessive path of contact schematic diagram of parking rack centre-to-centre spacing；
Fig. 8 is the schematic diagram of the fourth stage of parking braking；
Fig. 9 is the schematic diagram in the 5th stage of parking braking；
Figure 10 is the schematic diagram of unblock；
Figure 11 is the schematic diagram that unblock is completed.
Reference：
Halting mechanism 100, housing 1, slide 11, slide curved surface 111, briquetting 12, parking gear 2, the parking gear gear teeth 21,
Parking swing arm 3, chute 31, swing arm body 32, swing arm sprue 33, sliding-type face 331, sprue projection 332, driving groove 34, stay
Skiving bar 4, the parking rack gear teeth 41, rack body 42, sliding part 43, energy absorption device 5, the first spring 51, second spring 52, drive
Dynamic device 6, screw rod 61, the first screw thread 611, the second screw thread 612, boss 613, the first nut 62, the second nut 63, motor
64th, proximity Hall switch 68, locking be in place suddenly in place for ear pin 65, unblock detection plate 66, locking detection plate 67, unblock in place in place
That proximity switch 69, parking arm shaft 7, flat key 8, fixed cover 9, mounting bracket 20.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention,
" multiple " are meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate with one another；Can be joined directly together, can also be indirectly connected by intermediary, can
To be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Halting mechanism 100 according to embodiments of the present invention is described in detail with reference to Fig. 1-Figure 11.
Shown in reference picture 1, halting mechanism 100 according to embodiments of the present invention can include housing 1, parking gear 2, parking
Swing arm 3, parking rack 4, energy absorption device 5 and drive device 6.
With reference to shown in Fig. 2, parking gear 2 has the parking gear gear teeth 21, and alternatively, the tooth form of the parking gear gear teeth 21 is
Involute.Parking gear 2 and wheel link, parking gear 2 by it is locked when, wheel also will realize parking mesh by indirectly locked
's.
In a particular embodiment, parking arm shaft 7 is fixed with the phase of housing 1, and parking swing arm 3 is rotatable around parking arm shaft 7
Ground is arranged on housing 1.
Parking rack 4 is arranged in parking swing arm 3, and parking rack 4 can be rotated with parking swing arm 3 with closer or far from
Parking gear 2, by taking the left side parking swing arm 3 in Fig. 1 as an example, when left side parking swing arm 3 rotates counterclockwise, parking rack 4 leans on
Nearly parking gear 2, when left side parking swing arm 3 rotates clockwise, parking rack 4 is away from parking gear 2.
Parking rack 4 can move relative to parking swing arm 3 along the length direction of parking rack 4, as shown by the arrows in Figure 2 side
To thus advantageously accounting for the interference problem of parking rack 4 and parking gear 2.Preferably, parking rack 4 is standard tooth form angle
Rack, the parking rack gear teeth 41 for being engaged with the parking gear gear teeth 21 are provided with parking rack 4, in other words, per phase
Formed with a teeth groove between adjacent two parking gear gear teeth 21, during parking, the parking rack gear teeth 41 are adapted to fit in the teeth groove
It is interior, to limit the rotation of parking gear 2, complete parking operation.
When the tooth top of the parking rack gear teeth 41 is relative with the tooth top of the parking gear gear teeth 21, because parking rack 4 can edge
Its length direction is moved, and the parking rack gear teeth 41 can thus coordinated in the teeth groove of parking gear 2, to solve parking rack
The gear teeth 41 are with parking gear teeth groove not to tooth problem.
Further, multiple parking rack gear teeth 41 arrange along its length, the orientation and parking that parking rack 4 is taken turns
The nodel line of rack 4 is parallel.
In a particular embodiment, the tooth top of the parking rack gear teeth 41, the tooth top of the parking gear gear teeth 21 can be made to
Roundlet arcuation, rather than traditional planar structure, such as the crest top land of the parking rack gear teeth 41 are the arc of evagination, so, i.e.,
Make after the peak contact of the tooth top and the parking gear gear teeth 21 of the parking rack gear teeth 41, the parking rack gear teeth 41 and parking gear
The gear teeth 21 can also slide, the phenomenon without tooth top tooth occurs.
In other words, when parking gear 2 rotates to any angle, all without generation when parking rack 4 engages with parking gear 2
The phenomenon of tooth top tooth, during efficiently solving parking, the interference problem of parking rack 4 and parking gear 2.
In addition, slidable form is designed to by parking rack 4, even if the tooth top of the parking rack gear teeth 41, park tooth
It is relative to take turns the tooth top of the gear teeth 21, the parking gear gear teeth 21 and parking ratchet wheel can also be made by the movement of itself of parking rack 4
Tooth 41 engages, so as to further solve the interference problem of parking rack 4 and parking gear 2.In other words, the parking rack gear teeth 41
The engagement of the process approximation rack and pinion of parking gear teeth groove is slipped into, during gear teeth slip teeth groove and into engagement, is stayed
Chute 31 of the skiving bar 4 along parking swing arm 3 slides, as shown in arrow in Fig. 2.This sliding action is further solved not to tooth
Problem, realize the automatic to groove of the parking rack gear teeth 41 and parking gear teeth groove.
In brief, by the way that the tooth top of the parking gear gear teeth 21, the parking rack gear teeth 41 is designed into roundlet arcuation, solve
Determine the interference of tooth problem of parking rack 4 and parking gear 2 during parking, while utilized the removable spy of parking rack 4
Property, further optimize the interference of tooth problem of parking rack 4 and parking gear 2.
In some embodiments of the invention, parking rack 4, parking swing arm 3 and parking arm shaft 7 are multiple and one by one
Corresponding, multiple parking racks 4 are along the circumferentially distributed of parking gear 2.So, by setting multigroup parking rack 4 and parking to put
Arm 3, parking rack 4 can be made preferably to engage locking with parking gear 2, while parking power will also be shared jointly by multigroup, prevent
Only single group stress is excessive and damage, so as to improve parking stability.
Such as in the example of fig. 1, parking rack 4, parking swing arm 3 and parking arm shaft 7 are two and corresponded,
Relative to the mirror-image arrangement of parking gear 2, two parking racks 4 are opened point along the circumferentially-spaced of parking gear 2 for two parking swing arms 3
Cloth.Thus, be advantageous to save cost, and structure is relatively easy, arrangement is convenient.
Although it is pointed out that two mirror-image arrangements of parking swing arm 3, the design model of parking swing arm 3 not makes two
Individual parking rack 4 is just symmetrical, and it is that two parking racks 4 are avoided from design while are engaged with parking gear 2 that it, which is acted on, but this hair
Bright not limited to this.
In some preferred embodiments of the present invention, using multiple parking racks 4 and them are allowed to enter engagement shape in turn
State, it is possible thereby to ensure that at least one parking rack 4 can engage with parking gear 2 at once during braking, be advantageous to raising and stay
The reliability of car, so as to obtain preferable parking effect.This asymmetric mesh form design, also helps reduction halting mechanism
100 overall dimensions.
Multiple parking racks 4 are set, coupling mechanism force when can improve parking between parking rack 4 and parking gear 2, so as to
Obtain more preferable parking effect.In addition, multiple parking racks 4 engage with parking gear 2 in turn, the reliable of parking can be improved
Property, so as to obtain more preferable parking lock effect.
Energy absorption device 5 coordinates with parking rack 4, and energy absorption device 5 can be used for absorbing in the parking gear gear teeth 21 and park tooth
Impact energy in the engagement process of the bar gear teeth 41.Energy absorption device 5 can be arranged on the length direction of parking rack 4.Parking
Cheng Zhong, when the tooth top of the parking gear gear teeth 21 is relative with the tooth top of the parking rack gear teeth 41 and causes parking rack 4 along from height
When spending direction movement, energy absorption device 5 can absorb a part of impact energy, so as to advantageously reduce noise, improve vehicle
Energy-absorbing, noise reduction, protecting against shock performance, and then be advantageous to be lifted the NVH performances of vehicle.
Drive device 6 is arranged for driving multiple synchronization actions of parking swing arm 3.So as to ensure that multiple parking racks 4 are taken turns
Stream engages with parking gear 2, to improve the reliability of parking, and then obtains more preferable parking lock effect.Below by taking Fig. 1 as an example
Sketch the motion process of halting mechanism 100：
When drive device 6 drives parking swing arm 3, towards when being swung close to the direction of parking gear 2, parking rack 4 will be with parking
Gear 2 engages, to realize parking, when drive device 6 drives parking swing arm 3 to be swung towards the direction away from parking gear 2, and parking
Rack 4 will separate with parking gear 2, to realize the unblock of vehicle.
Halting mechanism 100 according to embodiments of the present invention, by improving the parking gear gear teeth 21 and the parking rack gear teeth 41
Tooth top structure, and using the removable dynamic characteristic of parking rack 4, can solve the problem that the interference of tooth of parking rack 4 and parking gear 2
Problem, while by setting energy absorption device 5, and can is absorbed in the parking gear gear teeth 21 and the engagement process of the parking rack gear teeth 41
Impact energy, vehicle is obtained preferable parking effect, be advantageous to be lifted the security performance and Consumer's Experience of vehicle.In addition, set
Multiple parking racks 4 are put, parking coupling mechanism force can be improved, multiple parking racks 4 are engaged with parking gear 2, can improved in turn
The reliability of parking, so as to obtain more preferable parking lock effect.
Parking rack 4 and parking gear 2 is described in detail with reference to Fig. 1-Fig. 2.
Specifically, as Figure 1-Figure 2, parking rack 4 can include rack body 42 and sliding part 43, parking ratchet wheel
Tooth 41 is arranged on rack body 42, and the crest top land of the parking rack gear teeth 41 can be the arc of evagination, sliding part 43 and rack
Body 42 is connected, and sliding part 43 is slidably disposed in parking swing arm 3 along its length.
Further, chute 31 is provided with parking swing arm 3, chute 31 extends along its length, and sliding part 43 is arranged on
In chute 31, sliding part 43 can slide along the length direction of chute 31, and chute 31 can be that the motion of sliding part 43 plays guiding work
With.
Connecting portion is provided between sliding part 43 and rack body 42, connecting portion can make sliding part 43 and rack body 42
Abreast it is spaced apart.
Specifically, parking swing arm 3 can include swing arm body 32 and swing arm sprue 33, the remote parking arm shaft of chute 31
7 open at one end (such as lower end in Fig. 1), swing arm sprue 33 is blocked at the open end of chute 31, thus in chute 31
A closed area is formed, sliding part 43 is slidably disposed in the closed area.
In some embodiments of the invention, parking swing arm 3 has drive end (upper end in such as Fig. 1) and sliding end is (such as
Lower end in Fig. 1), drive end is suitable to be driven by drive device 6, and the drive end of parking swing arm 3 is provided with driving groove 34, driving
End connects the central region of parking swing arm 3 positioned at the upper end of parking swing arm 3, parking arm shaft 7, and sliding end is located at parking swing arm 3
Lower end, sliding end is suitable to slide on slide 11 on housing 1, slide 11 can be the rotation of parking swing arm 3 rise it is spacing, lead
To effect.
Further, it is provided with slide 11 and slides curved surface 111, it is the axle centered on parking arm shaft 7 to slide curved surface 111
One section of arc surface of line.Swing arm sprue 33 has sliding-type face 331, and sliding-type face 331 is bonded with sliding the face face of curved surface 111.Change
Yan Zhi, sliding-type face 331 is equal with the radius of curvature for sliding curved surface 111, thereby guarantees that, sliding-type face 331 is with sliding curved surface 111
When facet face be bonded.
In some preferred embodiments of the present invention, energy absorption device 5 can be set on halting mechanism 100, with lifting
The NVH performances of vehicle, certainly in some optional embodiments, energy absorption device 5 can also be not provided with.With reference to Fig. 1-Fig. 2
Energy absorption device 5 is described in detail.
Specifically, energy absorption device 5 can include spring assembly, and spring assembly moves in parking rack 4 relative to parking swing arm 3
When by elastic deformation with apparatus with shock absorbing.
Further, spring assembly can include the first spring 51 and second spring 52, the first spring 51 and second spring
52 are separately positioned on the both ends of parking rack 4.In Fig. 1 specific example, the first spring 51 is arranged on the upper of parking rack 4
End, second spring 52 are arranged on the lower end of parking rack 4.When the sliding part 43 of parking rack 4 is along 31 upward sliding of chute, the
One spring 51 is compressed, and second spring 52 is gradually in locking state, when the sliding part 43 of parking rack 4 is along chute 31 to downslide
When dynamic, second spring 52 is compressed, and the first spring 51 is gradually in locking state.
The both ends of parking rack 4 are respectively provided with spring, and spring assembly also has in addition to it can absorb the impact energy of both direction
The standby function of making the self-return of parking rack 4, in other words, when promoting the power of parking rack 4 to disappear, parking rack 4 is first
In the presence of spring 51 and second spring 52, the centre position of chute 31 will be automatically returned to.Parking rack 4 and parking swing arm 3
Partial enlarged drawing is as shown in Figure 2.
Specifically, the first spring 51 and second spring 52 are located at the both ends of the sliding part 43 of parking rack 4 respectively.Wherein
One spring 51 is located between the upper end of sliding part 43 and the inner roof wall of chute 31, and second spring 52 is located at the lower end of sliding part 43
Between swing arm sprue 33.
Specifically, there is sprue projection 332, as shown in Fig. 2 sprue projection 332 extend into chute on swing arm sprue 33
31 open end, second spring 52 are located between lower end and the sprue projection 332 of sliding part 43.The external diameter of sprue projection 332 can
With equal with the internal diameter of chute 31, in order to which swing arm sprue 33 and swing arm body 32 preferably assemble.
Alternatively, the first spring 51 is identical with the construction of second spring 52, thus, it is possible to ensure when parking rack 4 is with staying
When skiving wheel 2 does not engage, in parking rack 4 in the presence of the first spring 51 and second spring 52, chute 31 can be automatically returned to
Centre position.
In some unshowned embodiments, chute 31 is closed chute 31, and sliding part 43 is in chute 31 by chute
31 points are the first oil pocket independent of each other and the second oil pocket, and the first oil pocket and the second oil pocket pass through the oil that is arranged on sliding part 43
Liquid intercommunicating pore is connected.Fluid intercommunicating pore can be structured as damping hole.When the sliding part 43 of parking rack 4 slides along chute 31
When, fluid is compressed with apparatus with shock absorbing, so as to play a part of energy-absorbing, noise reduction, protecting against shock.In addition, when parking rack 4 with
When parking gear 2 does not engage, under the fluid effect in the first oil pocket and the second oil pocket, parking rack 4 can return to chute 31
Centre position.
Two parking racks 4 are described in detail with reference to Fig. 1.
In the embodiment in figure 1, parking rack 4 is two, and two parking racks 4 are relatively distributed in parking gear 2
Both sides.
Further, the crest top land of the parking rack gear teeth 41 on one of parking rack 4 and the parking gear gear teeth 21
Crest top land it is relative, the teeth groove phase of the crest top land and parking gear 2 of the parking rack gear teeth 41 on another parking rack 4
It is right.
It can be seen that, using two parking racks 4 and them are allowed to enter engagement, right side parking rack in turn by Fig. 1
If the tooth top of the gear teeth 41 is in contact with the tooth top of the parking gear gear teeth 21, the tooth top and park tooth of the left side parking rack gear teeth 41
The teeth groove of wheel 2 is just relative, it is possible thereby to ensure that at least one parking rack 4 can be nibbled with parking gear 2 at once during braking
Close, be advantageous to improve the reliability of parking, so as to obtain preferable parking effect.
Drive device 6 is described in detail with reference to Fig. 1-Fig. 3.
Specifically, as shown in Figure 1, Figure 3, drive device 6 can include screw rod 61, the first nut 62 and the second nut 63,
The hand of spiral opposite the first screw thread 611 and the second screw thread 612, the first nut 62 and the first screw thread 611 are provided with screw rod 61
Connection, the second nut 63 is connected with the second screw thread 612, the first nut 62 and the second nut 63 it is in the same direction when screw rod 61 rotates (to
Close to mutual direction) it is synchronized or mobile at the same speed backwards to (to direction away from each other), wherein the first nut 62 and the second nut
63 is corresponding with two parking swing arms 3, it is possible thereby to drive two parking swing arms 3 simultaneously to the side closer or far from parking gear 2
To swing.Such as in certain embodiments, when screw rod 61 rotates forward, the first nut 62 and the second nut 63 are synchronized mobile backwards,
Two parking swing arms 3 are swung to close to the direction of parking gear 2.When screw rod 61 inverts, the first nut 62 and the second nut 63
Moved at the same speed to close to mutual direction, two parking swing arms 3 are swung to the direction away from parking gear 2.
First screw thread 611 and the second screw thread 612 are oppositely oriented, thereby ensure that when screw rod 61 rotates, the first nut 62
The direction of motion with the second nut 63 is on the contrary, ensure that two parking swing arms 3 can be simultaneously close to each other or simultaneously away from that
This, and then ensure that two parking racks 4 can be simultaneously close to parking gear 2 or simultaneously away from parking gear 2.
When screw rod 61 rotates, left side parking swing arm 3 is promoted to move by the first nut 62, the second nut 63 promotes right side to stay
Car swing arm 3 is moved, and the direction of motion of left and right two parking swing arms 3 is on the contrary, to ensure two parking racks 4 simultaneously close to parking
Gear 2 or simultaneously away from parking gear 2.
Further, drive device 6 can also include motor 64, and motor 64 is connected with screw rod 61, driving electricity
Machine 64 rotates for drive screw 61.In a particular embodiment, motor 64 is worm gear reducer motor.
Shown in reference picture 1, drive device 6 can also include flat key 8, fixed cover 9 and mounting bracket 20, wherein right side flat key 8
For connecting screw 61 and fixed cover 9, left side flat key 8 is used for the output shaft and fixed cover 9 for connecting motor 64, it is possible thereby to
The power of motor 64 is transferred to screw rod 61.Motor 64 is fixed on mounting bracket 20.
In certain embodiments, drive device 6 can also use gear reduction, differential gear transmission reducing gear etc., with
Halting mechanism 100 is facilitated to use.
Shown in reference picture 3, ear pin 65, parking swing arm are respectively and fixedly provided with each in the first nut 62 and the second nut 63
Driving groove 34 is provided with 3 upper surface, and drives groove 34 to be open upwards, driving groove 34 is strip groove, ear pin 65
In the driving groove 34, be achieved in being pivotally connected for the first nut 62 and left side parking swing arm 3, the second nut 63 with it is right
Side parking swing arm 3 is pivotally connected.
Alternatively, boss 613 is provided with screw rod 61, boss 613 between the first screw thread 611 and the second screw thread 612,
And the diameter of boss 613 is more than the diameter of screw rod 61.Briquetting 12 is provided with housing 1, holding tank, boss are provided with briquetting 12
613 are rotationally clamped by holding tank and are moved axially with limiting screw rod 61, and thus, in addition to lubrication gap, screw rod 61 can only
Rotate and can not move axially.Specifically, briquetting 12 can be utilized and is bolted on housing 1.
The specific example of reference picture 1, when vehicle is braked, two parking racks 4 can all be engaged with parking gear 2, and the gear teeth are nibbled
The radial load of conjunction translates into moment of torsion, parking swing arm 3 after respectively being conducted again on two parking racks 4 to two parking swing arms 3
Moment of torsion it is reverse by parking arm shaft 7, after then the moment of torsion is applied on the ear pin 65 of the first nut 62 and the second nut 63
It is changed into power again.The power acted on ear pin 65 can be decomposed into along the axial force of the axis direction of screw rod 61 and along the diameter of screw rod 61
The radial load in direction.But the axial force of the first nut 62 and the second nut 63 cancels each other, raising screw thread pair is thereby assisted in
Intensity, in other words, can equally meet requirement from the less nut of weight, thus be advantageous to halting mechanism 100
Light-weight design.Meanwhile be the power for bending screw rod 61 along 61 diametric radial load of screw rod, this power acts on the first spiral shell
The nut 63 of mother 62 and second, that is, be dispersed in the both sides of boss 613, be favorably improved the rigidity of screw thread pair.
When arranging halting mechanism 100, to make the direction of the tangential force that parking rack 4 engages with parking gear 2 through staying
The axis of car arm shaft 7, thus the torque around parking arm shaft 7 will not be produced, thus, the tangential force of a parking rack 4 turns
It is changed into the radial load to parking arm shaft 7, the tangential force of another parking rack 4 is acted on housing 1 by swing arm sprue 33,
As shown in Figure 2.
In some embodiments of the invention, unblock detection plate 66 in place, the second nut 63 are provided with the first nut 62
On be provided with locking detection plate 67 in place, be fixed with housing 1 with unlock in place detection plate 66 coordinate unblock Hall connects in place
Nearly switch 68 and with the locking locking that detection plate 67 coordinates in place proximity Hall switch 69 in place.Unblock in place detection plate 66 with
Proximity Hall switch 68 coordinates in place for unblock, whether in place can detect unblock.Detection plate 67 and locking be in place suddenly in place for locking
You coordinate proximity switch 69, whether in place can detect locking.
The operation principle of halting mechanism 100 is described in detail with reference to Fig. 1, Fig. 4-Figure 11：
(1) non-on-position
Non- on-position is as shown in figure 1, two parking racks 4 are locked into position suddenly away from parking gear 2, the reconciliation of the first nut 62
The distance of your proximity switch 68 is standard value, and the magnetic flux for now unlocking proximity Hall switch 68 in place is also standard value, program
Unblock can be detected in place.Screw rod 61 has auto-lock function, and the first nut 62 and the second nut 63 will not automatic movings.It is anti-
Only occur surprisingly, can be by the displacement of Programmable detection magnetic flux change the first nut 62 of monitoring and the second nut 63, can also
Mechanical positioner is installed additional between swing arm sprue 33 and housing 1, to improve the reliability of halting mechanism 100.Once solved preceding
After the completion of lock, parking rack 4 has automatically returned to the centre position of chute 31 in the presence of the first spring 51, second spring 52,
Parking rack 4 is away from parking gear 2, and parking gear 2 is although operate, but not interfered with parking rack 4.It is now
Vehicle is travelled in bumpy road, parking rack 4 under gravity can pressuring spring component produce vibration, but spring assembly is firm
Spend larger, therefore the vibration of parking rack 4 can not be arrived by visual observations.
(2) first stage of parking braking --- hollow travel stage
The first stage of parking braking is the addendum line and park tooth that parking rack 4 is moved to by released state (see Fig. 4)
The outside circle of wheel 2 is tangent.After parking instruction is connected to, motor 64 drives screw rod 61 to rotate, the first nut 62 and the second spiral shell
Mother 63 moves to the direction away from boss 613 simultaneously.In the process, unblock in place detection plate 66 simultaneously away from unblock in place suddenly
That proximity switch 68, the detectable magnetic flux for unlocking proximity Hall switch 68 in place of program diminish rapidly, but still greater than locking
The magnetic flux of proximity Hall switch 69 in place.First nut 62, the ear pin 65 of the second nut 63 drive two parking swing arms 3 respectively
Rotated around respective parking arm shaft 7, the parking rack 4 in parking swing arm 3 moves closer to parking gear 2, when halting mechanism 100
Work after a period of time, the addendum line of parking rack 4 and the outside circle of parking gear 2 are tangent.So far, the parking rack gear teeth 41 also not with
The parking gear gear teeth 21 are in contact, and are the hollow travel stages of halting mechanism 100.During this period of time, the drive system of vehicle
It is stopped, vehicle gradually slows down, but whether vehicle immobilization not can determine that.Compared with traditional cone pulley parking system, this hair
The idle stroke scope of bright halting mechanism 100 is more random, and design space is larger.
(3) second stage of parking braking-addendum circle arc contact slide stage
After continuously work is tangent to the addendum line of parking rack 4 and the outside circle of parking gear 2 for halting mechanism 100, enter immediately
Enter to second stage, i.e. addendum circle arc and contact, push and slide rather than engage, as shown in Figure 5.Due to by the tooth of parking rack 4
The tooth top of top and parking gear 2 is made to small arc-shaped, and this circular arc is smoothly connected with the left and right flank of tooth, and without singular point, (it is designed
It is proprietary technology with technique), when the peak contact of the tooth top and static parking rack 4 of the parking gear 2 of motion (see Fig. 5
Shown in the upper right corner), the tooth top of parking gear 2 forces in the tooth top of parking rack 4 at once, makes parking rack 4 along itself nodel line
Motion, but the first spring 51 or second spring 52 can prevent motion of the parking rack 4 along chute 31.During beginning, due to vehicle
The inertia of motion is larger, and the elastic force of spring assembly is insufficient to allow parking rack 4 to stop, so parking rack 4 can still move.Due to
Parking rack 4 is only contacted with parking gear 2 in tip portion, and parking rack 4, which is parked after gear 2 promotes slip a bit of, just to be taken off
Resilience occurs from contact.
So that right side parking rack 4 is first contacted with parking gear 2, contacted after left side parking rack 4 with parking gear 2 as an example,
When second stage starts, the tooth top of the parking rack 4 also not no peak contact with parking gear 2 on the left of Fig. 5, with braking
The progress of journey, after parking gear 2 rotates to an angle again, the tooth top of left side parking rack 4 just can be with the tooth of parking gear 2
Top contact, when right side parking rack 4 is also underway, the tooth top and parking gear 2 and park tooth of left side parking rack 4 are taken turns to again
The peak contact of wheel 2, snubber contact impacts in turn for they.At present due to entering only at tooth top or exiting engagement, and entrance or
Exit that comparison is frequent, single parking rack 4 have reciprocating motion (because the registration of engagement is less than 1 and resilience), similar to chain
Loosen the jump tooth with sprocket wheel.And two parking racks 4 will reduce the stroke of resilience, because parking swing arm 3 is continuously swung, stay
Skiving bar 4 is also radially towards the central slide of parking gear 2, so this process will not be very long.In this stage, solution is locked into
Position detection plate 66 constantly away from unblock proximity Hall switch 68 in place, and locking in place detection plate 67 constantly close to locking in place suddenly
That proximity switch 69.Detect and compare the magnetic flux of unblock proximity Hall switch 68 and locking proximity Hall switch 69 in place in place
Understand, the magnetic flux ratio of the unblock magnetic flux of proximity Hall switch 68 and locking proximity Hall switch 69 in place in place will be by big
It is transitioned into equal to 1, then is transitioned into less than 1 in 1.
It is pointed out that when unblock, detection plate 66 is more than locking away from the distance for unlocking proximity Hall switch 68 in place in place
In place detection plate 67 away from locking in place proximity Hall switch 69 apart from when, proximity Hall switch 68 and locking be in place in place for unblock
The magnetic flux ratio of proximity Hall switch 69 is more than 1.
When unblock in place detection plate 66 away from unblock in place the distance of proximity Hall switch 68 and locking in place detection plate 67 away from
When the distance of locking proximity Hall switch 69 in place is equal, Hall is approached and opened in place for proximity Hall switch 68 and locking in place for unblock
The magnetic flux ratio for closing 69 is equal to 1.
When unblock, detection plate 66 is less than locking detection plate 67 in place away from the distance for unlocking proximity Hall switch 68 in place in place
Away from locking in place proximity Hall switch 69 apart from when, unblock proximity Hall switch 68 and locking proximity Hall switch in place in place
69 magnetic flux ratio is less than 1.
(4) phase III of parking braking-parking gear gear teeth 21 start to engage and radially slided with the parking rack gear teeth 41
The dynamic stage
The beginning flag of phase III is that the parking rack gear teeth 41 all engage shape with the parking gear gear teeth 21 into initial
State, now the normal of the teeth outline of the parking rack gear teeth 41 and the basic circle of parking gear 2 start tangent (see shown in Fig. 6 and Fig. 7), stay
The meshing point of skiving wheel 2 and parking rack 4 is on this tangent line.Only from engagement, parking gear 2 promotes parking rack 4
Rectilinear movement.Although the parking gear gear teeth 21 and the parking rack gear teeth 41 are " real " engagements, due to just initially entering
The operating center distance of engagement, parking gear 2 and parking rack 4 is much larger than reference center distance, therefore the starting point engaged extremely terminates
The distance of point is much smaller than base pitch, namely registration is much smaller than 1, it is impossible to realizes continuous engagement, the i.e. rectilinear movement of parking rack 4
Can not be continuous, slippage phenomenon is still present.Now because parking swing arm 3 is constantly moved, parking swing arm 3 is to the center of parking gear 2
Swing make parking rack 4 be directly toward parking gear 2 to slide, thus, the engagement of parking gear 2 and parking rack 4 is increasingly
Deeply, the centre-to-centre spacing of parking gear 2 and parking rack 4 is close constantly to standard value, when centre-to-centre spacing difference is less than 0.5439m (by figure
Show that parameter calculates) when, the reciprocating motion (i.e. resilience) of parking rack 4 will disappear.In this stage, detection plate 66 in place are unlocked
Dissociation is locked into a proximity Hall switch 68 increasingly far, and locking in place from locking, get over detection plate 67 in place by proximity Hall switch 69
Come it is nearer, by Fig. 6 it can be seen that.Now, the magnetic flux of locking proximity Hall switch 69 in place should be near the mark value.
(5) nodel line of the reference circle and parking rack 4 of fourth stage-parking gear 2 of parking braking is tangent
The phase III engaged and radially slided carries out to a certain extent, just coming another significant key point, i.e. parking
The theory state that gear 2 engages with parking rack 4.If in the sometime vehicle immobilization of phase III, parking gear 2 drives
The motion that parking rack 4 moves linearly stops, and parking swing arm 3 does not stop towards the swing in the axle center of parking gear 2, until in
The reference circle of the nodel line of skiving bar 4 and parking gear 2 is tangent, as shown in Figure 8.Because the theory state of gear engagement is zero-clearance
, therefore when the nodel line of parking rack 4 and the tangent reference circle of parking gear 2, their between cog is zero-clearance.This moment, stay
Car swing arm 3 can not move again.That is, it is mark that parking swing arm 3 stops that the nodel line of zero-clearance and reference circle are tangent.If car
Do not stop, although parking swing arm 3 have been moved to make the reference circle of the nodel line of parking rack 4 and parking gear 2 tangent and from
Body stops, and parking gear 2 is still to rotate until car stops, or parking gear 2 will promote parking rack 4 to move linearly, until
Second spring 52 is compressed to most short by parking rack 4, could stop car.The stopping of vehicle and initial velocity, transmission internal resistance, road
Face situation, wind direction etc. are relevant, no matter but whether stop, parking swing arm 3 will move to the nodel line of parking rack 4 always with staying
Just stop when the reference circle of skiving wheel 2 is tangent.Thus can be in demarcation with the nodel line of parking rack 4 and parking gear 2
Reference circle is tangent to be defined, and by locking now, the distance of proximity Hall switch 69 is set as marking detection plate 67 in place with locking in place
Quasi- value, and magnetic flux now is also standard value.
(6) the 5th stage-parking gear 2 of parking braking engages real zero-clearance with parking rack 4
Because error all be present in the manufacture of any machine components, therefore in order to which the halting mechanism 100 of the present invention can be by reality
Border is applied, and parking rack 4 and the real zero-clearance state of parking gear 2 are discussed herein.Parking rack 4 be rack, its space width with
Transverse tooth thickness phase etc. is the nodel line position of parking rack 4.Size between the nodel line of parking rack 4, the gear teeth and teeth groove has certain system
Make error.Parking gear 2 is gear, and its foozle value is relevant with precision, cost.In actual production process, parking gear 2
Foozle according to 8 class precisions, its unilateral tooth thickness error 0.05mm causes 2 times of centre-to-centre spacing displacement (30 ° of profile angles).
The foozle of parking rack 4 and parking gear 2 to when enter parking phase III and fourth stage have an impact, it is most substantive
Influence final be embodied in locking detection plate 67 and the locking distance of proximity Hall switch 69 and the magnetic detected in place in place
Flux.Because 8 influences of the class precision horizontal centring heart away from displacement are little, only motor 64 need to be allowed to run to parking in parking
Rack 4 and 2 can very close to each other of parking gear.It is defined in assembling and demarcation by two states, specifically, parked state
When, parking rack 4 and parking gear 2 are (see Fig. 9) very close to each other, locking detection plate 67 and locking proximity Hall switch in place in place
69 distance is standard value, and magnetic flux is also standard value；During released state, parking rack 4 is maximum with the gap of parking gear 2,
Detection plate 66 and the distance for unlocking proximity Hall switch 68 in place are standard value in place for unblock, and magnetic flux is also standard value.
(7) unlock
Should first it be unlocked before vehicle launch.After unlock instruction is connected to, motor 64 is with oppositely oriented during parking, parking
The direction of motion of swing arm 3 is as shown by the arrows in Figure 10.After the disengaging parking gear 2 of parking rack 4 is remote enough, parking rack 4 exists
In being returned automatically in the presence of spring assembly.Motor 64 finally makes two parking racks 4 work as unblock away from parking gear 2
When detection plate 66 and the distance of unblock proximity Hall switch 68 in place are standard value in place (now magnetic flux is also standard value), journey
Sequence can detect unblock in place.State after the completion of unblock is shown in Figure 11.
(8) slope road parking
When vehicle is parked in slope Lu Shanghou, the trend that vehicle You Yanpo roads glide by driver.Ratchet is used for traditional
The vehicle of spine bar cone pulley structure parking, on slope road during parking, the power for preventing vehicle from being glided along slope road is finally applied on cone pulley.Make
After completing parking on slope road with the vehicle of the halting mechanism 100 of the present invention, also vehicle is allowed to be glided along slope road, its scope to glide
Pass through the control when designing spring.The maximum of downslide is embodied in the anglec of rotation of parking gear 2.The power of downslide is stayed by one
Skiving bar 4 is finally applied in parking swing arm 3, is ultimately applied to by another parking rack 4 on housing 1.
It is pointed out that parking gear 2 and parking rack 4 engage and parking swing arm 3 towards parking gear 2
Swing all can promote parking rack 4 to be moved along a straight line along chute 31, and the linear motion of parking rack 4 all can compression spring assembly.
Alternatively, housing 1 is the separate housing 1 of halting mechanism 100, or housing 1 is the housing 1 of the speed changer of vehicle,
Or fixed seat or fixed block on the housing 1 that housing 1 is the speed changer for being fixedly connected on vehicle.
The halting mechanism 100 of the present invention may apply on vehicle.Alternatively, parking gear 2 is fixed on the transmission of vehicle
On the input shaft or jackshaft of system.Alternatively, vehicle is pure electric vehicle.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the feature for combining the embodiment or example description
It is contained at least one embodiment or example of the present invention.In this manual, need not to the schematic representation of above-mentioned term
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.In addition, those skilled in the art can illustrate this
Different embodiments or example described in book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
- A kind of 1. halting mechanism, it is characterised in that including：Housing；Parking gear, the parking gear have the parking gear gear teeth；Parking swing arm, the parking swing arm are rotatably arranged on the housing around parking arm shaft；Parking rack, the parking rack be arranged in the parking swing arm and with the parking swing arm rotate with closer or far from The parking gear, the parking rack can move relative to the parking swing arm along the length direction of the parking rack, institute State the parking rack gear teeth being provided with parking rack for the parking gear gear teeth meshing, multiple parking ratchet wheels Tooth arranges along the length direction.
- 2. halting mechanism according to claim 1, it is characterised in that the parking rack includes：Rack body and the sliding part being connected with the rack body, the sliding part are mounted slidably along the length direction In the parking swing arm.
- 3. halting mechanism according to claim 2, it is characterised in that chute, the cunning are provided with the parking swing arm Groove extends along the length direction, and the sliding part is arranged in the chute.
- 4. halting mechanism according to claim 2, it is characterised in that set between the sliding part and the rack body There is connecting portion so that the sliding part is abreast spaced apart with the rack body.
- 5. halting mechanism according to claim 3, it is characterised in that the parking swing arm includes：Swing arm body and swing arm Sprue, the open at one end of the remote parking arm shaft of the chute, swing arm sprue closure the opening wide in the chute At end.
- 6. halting mechanism according to claim 1, it is characterised in that the parking swing arm has drive end and sliding end, The drive end is suitable to be driven by drive device, and the sliding end is suitable to slide on slide on the housing.
- 7. halting mechanism according to claim 6, it is characterised in that slip curved surface, the cunning are provided with the slide Moving surface is one section of arc surface of the axis centered on the parking arm shaft.
- 8. halting mechanism according to claim 6, it is characterised in that it is recessed that the drive end of the parking swing arm is provided with driving Groove, the drive end are located at the upper end of the parking swing arm, and the sliding end is located at the lower end of the parking swing arm, the parking The central region of parking swing arm described in swing arm axis connection.
- 9. halting mechanism according to claim 1, it is characterised in thatThe parking swing arm has drive end and sliding end, and the drive end is suitable to be driven by drive device, and the sliding end is fitted Slided on slide on the housing, slip curved surface is provided with the slide, the slip curved surface is with the parking One section of arc surface of axis centered on arm shaft；The parking swing arm includes：Swing arm body and swing arm sprue, one end of the remote parking arm shaft of the chute open Open, the swing arm sprue closure is at the open end of the chute；The swing arm sprue has sliding-type face, and the sliding-type face is bonded with the slip curved surface face face.
- 10. halting mechanism according to claim 1, it is characterised in that the crest top land of the parking rack gear teeth is evagination Arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765658.5A CN107559419B (en) | 2017-08-30 | 2017-08-30 | Halting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765658.5A CN107559419B (en) | 2017-08-30 | 2017-08-30 | Halting mechanism |
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| CN107559419A true CN107559419A (en) | 2018-01-09 |
| CN107559419B CN107559419B (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710765658.5A Active CN107559419B (en) | 2017-08-30 | 2017-08-30 | Halting mechanism |
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| US5269195A (en) * | 1991-10-22 | 1993-12-14 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Vehicle park lock mechanism |
| JPH1194080A (en) * | 1997-09-19 | 1999-04-09 | Aichi Mach Ind Co Ltd | Parking mechanism of automatic transmission |
| JPH1194081A (en) * | 1997-09-19 | 1999-04-09 | Aichi Mach Ind Co Ltd | Parking mechanism of automatic transmission |
| CN102168755A (en) * | 2011-03-30 | 2011-08-31 | 李金东 | Electronic control P step mechanism for electric vehicle |
| CN202200065U (en) * | 2011-07-29 | 2012-04-25 | 河南宇建矿业技术有限公司 | Axial self-centering clamp |
| CN104006157A (en) * | 2014-05-30 | 2014-08-27 | 长城汽车股份有限公司 | Parking mechanism of automobile transmission |
| CN204075035U (en) * | 2014-08-14 | 2015-01-07 | 黄山盛锐重工机械有限公司 | A kind of lock of the parking for cold headers transmission mechanism |
| CN204852313U (en) * | 2015-08-21 | 2015-12-09 | 上海三立汇众汽车零部件有限公司 | Two pressure formula P shelves parking devices |
| CN105252306A (en) * | 2015-11-03 | 2016-01-20 | 张家港市紫东机械科技有限公司 | Spherical workpiece clamping mechanism |
| CN105798651A (en) * | 2015-10-27 | 2016-07-27 | 济南大学 | Automatic aligning clamp of drilling machine |
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2017
- 2017-08-30 CN CN201710765658.5A patent/CN107559419B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269195A (en) * | 1991-10-22 | 1993-12-14 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Vehicle park lock mechanism |
| JPH1194080A (en) * | 1997-09-19 | 1999-04-09 | Aichi Mach Ind Co Ltd | Parking mechanism of automatic transmission |
| JPH1194081A (en) * | 1997-09-19 | 1999-04-09 | Aichi Mach Ind Co Ltd | Parking mechanism of automatic transmission |
| CN102168755A (en) * | 2011-03-30 | 2011-08-31 | 李金东 | Electronic control P step mechanism for electric vehicle |
| CN202200065U (en) * | 2011-07-29 | 2012-04-25 | 河南宇建矿业技术有限公司 | Axial self-centering clamp |
| CN104006157A (en) * | 2014-05-30 | 2014-08-27 | 长城汽车股份有限公司 | Parking mechanism of automobile transmission |
| CN204075035U (en) * | 2014-08-14 | 2015-01-07 | 黄山盛锐重工机械有限公司 | A kind of lock of the parking for cold headers transmission mechanism |
| CN204852313U (en) * | 2015-08-21 | 2015-12-09 | 上海三立汇众汽车零部件有限公司 | Two pressure formula P shelves parking devices |
| CN105798651A (en) * | 2015-10-27 | 2016-07-27 | 济南大学 | Automatic aligning clamp of drilling machine |
| CN105252306A (en) * | 2015-11-03 | 2016-01-20 | 张家港市紫东机械科技有限公司 | Spherical workpiece clamping mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107559419B (en) | 2019-07-09 |
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