CN107606145B - P keeps off parking mechanism and vehicle - Google Patents
P keeps off parking mechanism and vehicle Download PDFInfo
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- CN107606145B CN107606145B CN201710995863.0A CN201710995863A CN107606145B CN 107606145 B CN107606145 B CN 107606145B CN 201710995863 A CN201710995863 A CN 201710995863A CN 107606145 B CN107606145 B CN 107606145B
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Abstract
The invention discloses a P-gear parking mechanism and a vehicle, wherein the P-gear parking mechanism comprises: a housing; a parking gear; a pawl spaced from the parking gear in an out-of-park condition; the stop block is fixedly connected with the shell and is positioned on one side, away from the parking gear, of the pawl; the pull rod assembly is positioned between the pawl and the stop block; and the actuator is connected with the pull rod assembly through a driving shaft, and the pawl is pivotally arranged on the driving shaft, so that the pull rod assembly is suitable for abutting against the stop block and the pawl to push the pawl to rotate to lock the parking gear. The P-gear parking mechanism has the advantages of good stability of gear engagement and parking, high structural reliability, small number of parts and high assembly precision among the parts, so that the structure of the P-gear parking mechanism is more compact, the required space is small, and the optimization of the spatial arrangement of the whole vehicle is facilitated.
Description
Technical field
The invention belongs to technical field of vehicle manufacture, keep off halting mechanism in particular to a kind of P and there is P gear to stay
The vehicle of mechanism of car.
Background technique
P keep off parking lock device under stationary vehicle or lower-speed state can safe parking, prevent vehicle from coming down.Related skill
The general spare part dispersion of P gear parking device in art, occupancy shell space is larger, is unfavorable for P gear parking device on vehicle
Installation, the component number that P keeps off parking device is excessive, and the assembly difficulty of itself can be made big, and P gear in the related technology is stayed
Vehicle device is poor to the driving guiding performance of pawl, leads to the case where easily occurring not hanging gear, there are rooms for improvement.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of P gear
Halting mechanism, the P gear halting mechanism structural reliability is high, and component number is few.
P gear halting mechanism according to an embodiment of the present invention includes: shell；Parking gear；Pawl, the pawl is in non-parking
It is spaced apart under state with the parking gear；Block, the block are fixedly connected with the shell, and are located at the pawl and are deviated from
The side of the parking gear；Rod assembly, the rod assembly is between the pawl and the block；Executing agency,
The executing agency is connected by drive shaft with the rod assembly, and the pawl may be pivotally mounted to the drive shaft, with
It is suitable for the rod assembly only to the block and the pawl to push parking gear described in the pawl rotation to locking.
P according to an embodiment of the present invention keeps off halting mechanism, the limitation and guiding moved by block to rod assembly, P gear
The parking stability of putting into gear of halting mechanism is good, and the structural reliability that P keeps off halting mechanism is high, and the motion profile baseset of movement parts
In on one face, and component number is few, and the assembly precision between components is high, so that the structure of P gear halting mechanism is tighter
It gathers, required space is small, is conducive to the space layout for optimizing vehicle.
P according to an embodiment of the invention keeps off halting mechanism, the direction of motion of the rod assembly and the drive shaft
Axis it is vertical.
P according to an embodiment of the invention keeps off halting mechanism, the pawl be set in the drive shaft it is outer and with it is described
Drive shaft clearance fit.
P according to an embodiment of the invention keeps off halting mechanism, further includes: return unit, the return unit and the pawl
It is connected, so that the pawl is spaced apart with the parking gear under normal conditions.
P according to an embodiment of the invention keeps off halting mechanism, and the return unit includes torsional spring, and the torsion spring set is set to institute
Drive shaft is stated, the positive stop end of the torsional spring compresses the shell, and the effect end elasticity of the torsional spring compresses the pawl.
P according to an embodiment of the invention keeps off halting mechanism, and the drive shaft is parallel with the axis of the parking gear
Setting.
P according to an embodiment of the invention keeps off halting mechanism, further includes: drive shaft, the drive shaft and the execution
The connection of mechanism power coupling；Lobe plate, the lobe plate are fixedly connected with the drive shaft, the rod assembly and the cam
Plate is connected.
P according to an embodiment of the invention keeps off halting mechanism, further includes: leaf spring, the leaf spring are fixed with the shell
Connection, and the leaf spring is equipped with roller, the outer periphery of the lobe plate is equipped with the parking lock slot for being suitable for cooperating with the roller
With non-parking lock slot.
P according to an embodiment of the invention keeps off halting mechanism, and the outer periphery of the lobe plate includes arc section, and the center of circle
On the axis of the drive shaft.
P according to an embodiment of the invention keeps off halting mechanism, and the parking lock slot and the non-parking lock slot are equal
For V-arrangement.
P according to an embodiment of the invention keeps off halting mechanism, and the rod assembly includes: pull rod, the pull rod and institute
Lobe plate is stated to be connected；Closing piece, the closing piece are slidably mounted on the pull rod；Elastic component, the elastic component elastic connection
Between the pull rod and the closing piece.
P according to an embodiment of the invention keeps off halting mechanism, and the pull rod includes sequentially connected guide section, transition
Section, linkage section, the axis of the guide section is vertical with the pivot axis of the pawl, the axis of the linkage section and the guiding
The axis of section is vertical, and the elastic component is spring, and is sheathed on outside the guide section, is sheathed on institute to the closing piece clearance fit
Guide section is stated, the lobe plate is equipped with connecting hole, and the linkage section protrudes into the connecting hole.
P according to an embodiment of the invention keeps off halting mechanism, the pull rod further include: end face limited block, the end face
Limited block is located at one end far from the changeover portion of the guide section, and the end face limited block includes conical surface section and cylinder
One end of section, the separate closing piece of the bottom and cylinder section of the conical surface section is connected, the bottom of the conical surface section it is straight
The diameter of one end towards the end face limited block of diameter, the diameter of described one end of the cylinder section, the closing piece is identical.
P according to an embodiment of the invention keeps off halting mechanism, and the closing piece includes the cylindrical section being sequentially connected, the first circle
Platform section, the second rotary table section, the taper of the first rotary table section are greater than the taper of the second rotary table section.
P according to an embodiment of the invention keeps off halting mechanism, and the taper of the first rotary table section is a, second circle
The taper of platform section is b, is met: 1≤a≤1.8,0.1≤b≤0.2.
P according to an embodiment of the invention keeps off halting mechanism, and the pawl has pawl working face, the pawl work
Face includes the non-parking confined planes of pawl and pawl parking confined planes, the non-parking confined planes of pawl to the parking gear away from
From less than with a distance from the pawl parking confined planes to the parking gear；The block has block working face, the block
Working face includes the non-parking confined planes of block and block parking confined planes, the non-parking confined planes of block to the parking gear
Distance be greater than the block parking confined planes to the parking gear distance；The closing piece be located at the pawl working face with
Between the block working face, under non-parked state, the cylindrical section is located at the pawl parking confined planes and the block
Between parking confined planes, the second rotary table section be located at the non-parking confined planes of the pawl and the non-parking confined planes of the block it
Between, under parked state, the second rotary table section is between the pawl parking confined planes and the block parking confined planes
To push parking gear described in the pawl rotation to locking.
P according to an embodiment of the invention keeps off halting mechanism, and the pawl working face includes pawl transition face, the spine
Pawl transition face is connected between the non-parking confined planes of the pawl and the pawl parking confined planes, the pawl transition face and institute
The angle of the non-parking confined planes of pawl and the pawl parking confined planes is stated between 100 ° -160 °；The block work
Face includes block transition face, and the block transition face is connected to the non-parking confined planes of the block and the block parking confined planes
Between, the angle of the block transition face and the non-parking confined planes of the block and the block parking confined planes between
Between 100 ° -160 °.
P according to an embodiment of the invention keeps off halting mechanism, and the executing agency is electrodynamic type or hand.
The invention also provides a kind of vehicle, have as it is above-mentioned it is any as described in P gear halting mechanism.
Possessed advantage is identical compared with the existing technology with above-mentioned P gear halting mechanism for the vehicle, no longer superfluous herein
It states.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is structural schematic diagram of the P gear halting mechanism according to an embodiment of the present invention in non-parked state；
Fig. 2 is structural schematic diagram of the P gear halting mechanism according to an embodiment of the present invention in pre- parked state；
Fig. 3 is structural schematic diagram of the P gear halting mechanism according to an embodiment of the present invention in parked state；
Fig. 4 is the partial enlarged view in Fig. 3 at A；
Fig. 5 is the structural schematic diagram of lobe plate according to an embodiment of the present invention and drive shaft；
Fig. 6 is the structural schematic diagram of rod assembly according to an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of pull rod according to an embodiment of the present invention Yu end face limited block.
Appended drawing reference:
Parking gear 1, lock groove 14,
Pawl 2, the non-parking confined planes 21 of pawl, pawl transition face 22, pawl parking confined planes 23, locking tooth 24, pawl
Pivotal axis 26,
Torsional spring 3,
Block 4, the non-parking confined planes 41 of block, block transition face 42, block parking confined planes 43,
Executing agency 51, drive shaft 52,
Lobe plate 6, connecting hole 61, parking lock slot 62, non-parking lock slot 63,
Pull rod 7, guide section 71, changeover portion 72, linkage section 73, end face limited block 74, elastic component 75,
Closing piece 8, cylindrical section 81, the first rotary table section 82, the second rotary table section 83,
Leaf spring 9, roller 91.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
P gear halting mechanism according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 7, the P gear of the embodiment of the present invention is stayed
Mechanism of car not only can be applied to pure electric automobile retarder, but also can be applied to fuel vehicle automatic transmission.
As shown in Figure 1-Figure 3, P according to an embodiment of the invention gear halting mechanism include: shell (not shown),
Drive shaft 52, parking gear 1, pawl 2, block 4, executing agency 51 and rod assembly.
Wherein, shell can be connected with reduction case, and parking gear 1 is connected with the driving force assembly of vehicle, for example stays
Skiving wheel 1 can be fixedly connected with main reducing gear gear wheel, when parking gear 1 is locked up, i.e., cut-off power output.
As shown in Figure 1-Figure 3, pawl 2 may be pivotally mounted in shell, and pawl 2 may be pivotally mounted to drive shaft 52,
Pawl 2 is set in outside drive shaft 52 by through-hole, and pawl 2 and 52 clearance fit of drive shaft, and pawl 2 can be long strip-board shape.
Folder between the axis of the normal and parking gear 1 of pawl 2 and the substantially coplanar setting of parking gear 1 or pawl 2
10 ° of angle <, pawl 2 has locking tooth 24, a laterally closer parking gear 1 towards parking gear 1 of the locking tooth 24 from pawl 2
Direction protrusion, can locking when pawl 2, which turns to locking tooth 24 around drive shaft 52, is caught in the lock groove 14 of parking gear 1
Parking gear 1 realizes that P keeps off parking.
Pawl 2 is spaced apart with parking gear 1 under non-parked state, and pawl 2 does not interfere the rotation of parking gear 1.P gear
Halting mechanism can also include: return unit, and return unit is connected with pawl 2, so that pawl 2 is spaced with parking gear 1 under normal conditions
It opens.For example return unit may include torsional spring 3, torsional spring 3 is sheathed on drive shaft 52, and the positive stop end of torsional spring 3 compresses shell, torsional spring 3
Effect end elasticity compresses pawl 2.
Block 4 is fixedly connected with the casing, and block 4 is located at the side that pawl 2 deviates from parking gear 1, that is to say, that pawl
2 between block 4 and parking gear 1, and block 4 is spaced apart with pawl 2.
Rod assembly is between pawl 2 and block 4, and rod assembly is for pushing pawl 2 to rotate around drive shaft 52, block
4 move for limiting rod assembly towards the direction away from pawl 2, and rod assembly is clamped between pawl 2 and block 4, this
The kinetic stability of sample, rod assembly is higher, and pawl 2 and block 4 can also play certain guiding role to rod assembly.
Executing agency 51 is connected by drive shaft 52 with rod assembly for inputting driving force of putting into gear, executing agency 51, is driven
The input terminal of moving axis 52 is connect with the output end power coupling of executing agency 51, and the output end of drive shaft 52 can be with rod assembly
It is connected directly, the output end of drive shaft 52 can be indirectly connected with rod assembly.
Due to eliminating the independent pivotal axis of pawl 2, it is possible to reduce component number improves the assembly essence between components
Degree, so that the more compact structure of P gear halting mechanism, required space is small, is conducive to the space layout for optimizing vehicle.
Executing agency 51 can make drive shaft 52 rotate scheduled angle, so that rod assembly is made to move scheduled stroke,
Executing agency 51 can be electrodynamic type or hand, and automatic parking or unlock may be implemented when executing agency 51 is electrodynamic type,
For example executing agency 51 includes motor；When executing agency 51 is hand, can be executed by hand engaging gear parking or unlock
Mechanism 51 can be stay-supported or rod-pulling type.
Parking operation is inputted, executing agency 51 drives rod assembly, and rod assembly is suitable for stopping baffle 4 to push pawl 2
Locking parking gear 1 is turned to, the direction of motion of rod assembly is vertical with the axis of drive shaft 52, the movement rail of rod assembly
Mark, pawl 2 motion profile can be vertical with the axis of parking gear 1.
P according to an embodiment of the present invention keeps off halting mechanism, the limitation and guiding moved by block 4 to rod assembly, P
The parking stability of putting into gear for keeping off halting mechanism is good, and the structural reliability that P keeps off halting mechanism is high, and the motion profile of movement parts is basic
It concentrates on one face, and component number is few, the assembly precision between components is high, so that the structure of P gear halting mechanism is more
Compact, required space is small, is conducive to the space layout for optimizing vehicle.
In some preferred embodiments, with reference to Fig. 1-Fig. 3, axis, the axis of parking gear 1 of drive shaft 52 are parallel,
It is possible thereby to which executing agency 51 to be arranged in the side of retarder, P keeps off the compact-sized of halting mechanism, is conducive to optimize vehicle
Space layout.
As shown in Figure 1-Figure 3, it can also include: lobe plate 6, lobe plate 6 and the fixed company of drive shaft 52 that P, which keeps off halting mechanism,
It connecing, for example lobe plate 6 is set in outside drive shaft 52, and is weldingly connected with drive shaft 52, rod assembly is connected with lobe plate 6, than
If the pull rod 7 of rod assembly is connected with lobe plate 6, when drive shaft 52 rotates, lobe plate 6 is rotated with drive shaft 52, and is driven
Pull rod 7 moves.
As shown in Figure 1-Figure 3, it can also include: leaf spring 9 that P, which keeps off halting mechanism, and leaf spring 9 is fixedly connected with the casing, such as plate
Spring 9 can be fixedly connected with the casing by threaded fastener, and leaf spring 9 is equipped with roller 91, and roller 91 can be cylinder, lobe plate
6 outer periphery is equipped with parking lock slot 62 and non-parking lock slot 63, parking lock slot 62 and non-parking lock slot 63 be suitable for
Roller 91 cooperates.
Under non-parked state, roller 91 is contacted with non-parking lock slot 63, and elasticity compresses lobe plate 6, to drive
When axis 52 does not rotate, lobe plate 6 is locked at current location, so that P gear halting mechanism is maintained at P and keeps off position of putting into gear；It is needing to stay
Che Shi, lobe plate 6 rotate, and roller 91 is rolled along the edge of lobe plate 6, and when roller 91 rolls into parking lock slot 62, pawl 2 stops
To parking gear 1, and 91 elasticity of roller compresses lobe plate 6, with when drive shaft 52 does not rotate, by 6 locking of lobe plate.
Specifically, as shown in figure 5, parking lock slot 62 and non-parking lock slot 63 can be V-arrangement, such roller 91
It is more convenient to roll into and out, and the outer periphery of lobe plate 6 includes arc section, and the center of circle of the arc section is located at drive shaft 52
On axis, for example lobe plate 6 can be fanning strip.
In some preferred embodiments that the present invention invents, as shown in Fig. 1-Fig. 3 and Fig. 5, lobe plate 6 is at least partly
It is overlapped in the axial direction at least partially in drive shaft 52 of pawl 2, that is to say, that axial direction of the lobe plate 6 along drive shaft 52
Projection and pawl 2 along the axial projection of drive shaft 52 there is overlapping region.
In some preferred embodiments for inventing of the present invention, as shown in fig. 6, rod assembly include: pull rod 7, closing piece 8,
Elastic component 75.
Wherein, pull rod 7 is connected with executing agency 51, and specifically, pull rod 7 is connected with lobe plate 6, and closing piece 8 is slideably pacified
Loaded on pull rod 7,75 elastic connection of elastic component is between pull rod 7 and closing piece 8, and in a free state, elastic component 75 is precommpression
State, so that closing piece 8 is only against end.
As shown in Figure 6 and Figure 7, pull rod 7 includes sequentially connected guide section 71, changeover portion 72, linkage section 73, guide section 71
Axis it is vertical with the pivot axis of pawl 2, at least part of changeover portion 72 is arc, the axis and guiding of linkage section 73
The axis of section 71 is vertical, and elastic component 75 is spring, and elastic component 75 is sheathed on outside guide section 71, guide section 71 and 72 phase of changeover portion
One end even has fixed lobe, and the fixed lobe is only supported in one end of elastic component 75, and the other end of elastic component 75 only supports closing piece 8.
It is sheathed on to 8 clearance fit of closing piece guide section 71, lobe plate 6 is equipped with connecting hole, and linkage section 73 protrudes into connecting hole, even
Retention bead can be equipped with by connecing section 73, and retention bead can be two, axial and circumferential of two retention beads in linkage section 73
It is upper to be spaced apart, for limiting linkage section 73 when linkage section 73 protrudes into connecting hole, prevent pull rod 7 from deviating from from connecting hole.
Pull rod 7 can also include: end face limited block 74, and end face limited block 74 is located at the separate changeover portion 72 of guide section 71
One end end face limited block 74 and guide section 71 are weldingly connected after elastic component 75 and closing piece 8 are arranged guide section 71,
So that closing piece 8 and elastic component 75 are limited, and elastic component 75 is in precompressed state.
Specifically, as shown in Figure 6 and Figure 7, end face limited block 74 may include conical surface section and cylinder section, the bottom of conical surface section
It is connected with one end of the separate closing piece 8 of cylinder section, the court of the diameter of the bottom of conical surface section, the diameter of one end of cylinder section, closing piece 8
Diameter to one end of end face limited block 74 is identical.It thus it can be prevented that end face limited block 74 influences the work of closing piece 8.
As shown in fig. 6, closing piece 8 include be sequentially connected cylindrical section 81, the first rotary table section 82, the second rotary table section 83, first
The upper bottom of rotary table section 82 is connected with cylindrical section 81, and the bottom of the first rotary table section 82 is connected with the upper bottom of the second rotary table section 83, and the
Two rotary table sections 83, the first rotary table section 82, cylindrical section 81 are sequentially connected along the direction of motion of the rod assembly in parking.
With reference to Fig. 6, cylindrical section 81, the first rotary table section 82, the second rotary table section 83 axis be overlapped, the diameter of cylindrical section 81 with
The diameter at the upper bottom of the first rotary table section 82 is identical, the upper bottom of the diameter of the bottom of the first rotary table section 82 and the second rotary table section 83
Diameter is identical, and the taper of the first rotary table section 82 is greater than the taper of the second rotary table section 83, it is preferable that the taper of the first rotary table section 82 is
A, the taper of the second rotary table section 83 are b, are met: 1≤a≤1.8,0.1≤b≤0.2, specifically, a=1.45, b=0.15.
As shown in Figure 1-Figure 3, closing piece 8 is for pushing pawl 2 to rotate around pawl pivotal axis 26, and block 4 is for limiting closing piece 8
It moves, and closing piece 8 is clamped between pawl 2 and block 4, the kinetic stability of such closing piece 8 towards the direction away from pawl 2
It is higher, and pawl 2 and block 4 can also play certain guiding role to closing piece 8.
Parking operation is inputted, executing agency 51 drives pull rod 7, to drive closing piece 8 to stop baffle 4, spine by elastic component 75
Pawl 2, and under parked state, the second rotary table section 83 stop baffle 4, pawl 2 to push pawl 2 to turn to locking parking gear 1,
Wherein under non-parked state, cylindrical section 81 can be clamped in always between block 4 and pawl 2, to prevent stop block 4 and pawl 2
It only supports, the movement convenient for subsequent closing piece 8 relative to pawl 2 and block 4, the biggish first rotary table section 82 of taper is during parking
It can play guiding role, the lesser second rotary table section 83 of taper can play certain guiding role in parking process, and
Driving torque needed for can reduce unlock in unlocking process.
As Figure 1-Figure 4, pawl 2 has pawl working face away from the side of parking gear 1, and pawl working face can be
The part lateral edge away from 1 side of parking gear of pawl 2.Pawl working face includes the non-parking confined planes 21 of pawl and pawl parking
Confined planes 23, the distance of the non-parking confined planes 21 of pawl to parking gear 1 are less than pawl parking confined planes 23 and arrive parking gear 1
Distance.Pawl working face further includes pawl transition face 22, and pawl transition face 22 is connected to the non-parking confined planes 21 of pawl and spine
Between pawl parking confined planes 23, pawl transition face 22 and the angle of the non-parking confined planes 21 of pawl and pawl parking confined planes 23 are equal
Between 100 ° -160 °.
Block 4 has block working face, and block working face is located at the side that pawl 2 deviates from parking gear 1, such as block-like
Groove is dug on block 4, a part of of a side wall of groove can form block working face, and the bottom wall of groove can be total to pull rod
At limit is played the role of, the especially closing piece 8 of limitation rod assembly shakes along the axial direction of parking gear 1.Block work bread
The non-parking confined planes 41 of block and block parking confined planes 43 are included, the distance of the non-parking confined planes 41 of block to parking gear 1 is big
The distance of parking gear 1 is arrived in block parking confined planes 43.Block working face further includes block transition face 42, block transition face 42
It is connected between the non-parking confined planes 41 of block and block parking confined planes 43, block transition face 42 and the non-parking confined planes of block
41 and block parking confined planes 43 angle between 100 ° -160 °.
Closing piece 8 is between pawl working face and block working face, and under non-parked state, cylindrical section 81 is stayed positioned at pawl
Between vehicle confined planes 23 and block parking confined planes 43, the second rotary table section 83 is located at the non-parking confined planes 21 of pawl and block is non-stays
Between vehicle confined planes 41；Under parked state, the second rotary table section 83 is located at pawl parking confined planes 23 and block parking confined planes
To push pawl 2 to turn to locking parking gear 1 between 43.
By the block working face of above structure form and pawl working face, can the movement effectively to closing piece 8 formed
Guiding prevents occurring stuck failure during putting into gear.
1- Fig. 3 describes the working principle of P gear halting mechanism according to an embodiment of the present invention with reference to the accompanying drawings.
When vehicle is in normally travel state, as shown in Figure 1,91 elasticity of roller of leaf spring 9 is pressed on lobe plate 6
In non-parking lock slot 63, to prevent the rotation of lobe plate 6, the second rotary table section 83 of closing piece 8 is located at the non-parking limit of block of block 4
Between plane 41 and the non-parking contact surface of pawl 2, the locking tooth 24 of pawl 2 is in the position of the lock groove 14 far from parking gear 1
It sets.
When vehicle remains static or low-speed running state and when needing parking, executing agency 51 receives controller and issues
Parking instruction, and by drive shaft 52 drive lobe plate 6 overcome from leaf spring 9 compress non-parking lock slot 63 generate it is reversed
Torque rotates synchronously, and lobe plate 6 is by the 61 pushing drawing rod assembly of connecting hole that cooperate with pull rod 7, and then drive closing piece 8 and elasticity
Part 75 is moved to the direction of block parking confined planes 43, and P, which keeps off halting mechanism, at this time the possible state of following two.
State 1: if the lock groove 14 of parking gear 1 is located at 24 position of locking tooth of face pawl 2, due to rod assembly
On the initial elastic force of elasticity be greater than pawl 2 due to the resistance that the effect of torsional spring 3 is compressed to closing piece 8 and closing piece 8 is hindered to continue movement,
To which elastic component 75 just can smoothly push closing piece 8, the first rotary table section 82 and then promotion pawl 2 of closing piece 8 without second compression again
It is rotated to the direction close to lock groove 14, when the second rotary table section 83 of closing piece 8 moves to block parking confined planes 43 and pawl is stayed
When between vehicle confined planes 23, synchronously, the locking tooth 24 of pawl 2 is moved in the lock groove 14 of parking gear 1, synchronously, convex
The parking lock slot 62 of wheel plate 6 turns to 91 position of roller of leaf spring 9, and roller 91 is made to be pressed on the parking lock slot of lobe plate 6
62 bottoms, to make executing agency 51 (such as motor), lobe plate 6 is maintained at parking lock as shown in Figure 3 in the power-off state
Stop bit is set.
State 2: as shown in Fig. 2, if when 24 position of locking tooth of the non-face pawl 2 of lock groove 14 of parking gear 1, closing piece
8 the first rotary table section 82 equally pushes the locking tooth 24 of pawl 2 close to the gear tooth portions of parking gear 1, when the locking tooth of pawl 2
24 with after the tooth contact of parking gear 1, and pawl 2 just cannot continue to rotate, and the first rotary table section 82 and the pawl parking of closing piece 8 limit
Second rotary table section 83 of the rounded contact at 23 edge of plane, closing piece 8 just cannot continue to move, at this time since executing agency 51 does not turn
Specified angle is moved, lobe plate 6 will be driven to continue to rotate, elastic component 75 is gradually compressed, and turns to lobe plate 6 always
When the roller 91 of 62 bottom of parking lock slot and leaf spring 9 contacts, synchronously, executing agency 51 has gone to the angle of setting and has broken
Electricity, since the roller 91 of leaf spring 9 compresses torque caused by lobe plate 6 greater than elastic component 75 to the anti-of pull rod 7 and lobe plate 6
Action torque, so whole parking system remains to be maintained at pre- parked state as shown in Figure 2 after executing agency 51 powers off, by
It is in compressive state in elastic component 75, if landslide phenomenon occurs for vehicle, wheel will drive the rotation of parking gear 1, when parking gear 1
Lock groove 14 when turning to 24 position of locking tooth of face pawl 2, closing piece 8 will continue to push spine under the thrust of elastic component 75
Pawl 2 rotates and enters locking tooth 24 in lock groove 14, and P gear halting mechanism has just reached parked state as shown in Figure 3, thus
Guarantee that vehicle will not continue to come down over long distances.
When vehicle launch needs to unlock, after executing agency 51 receives the instruction of controller sending, lobe plate 6 is driven
It is rotated to the direction opposite with when parking, synchronously, lobe plate 6 drives pull rod 7 to move, and the end face limited block 74 of pull rod 7 pushes
Closing piece 8 withdraws the second rotary table section 83 between block parking confined planes 43 and pawl parking confined planes 23, due to the second rotary table section
83 wall surface has small angle, required driving torque when so as to reduce unlock, the locking tooth 24 of pawl 2 in torsional spring 3 or
Locking tooth 24 two locking tooths for making pawl 2 that there are the sides of angle to contact and generate of 14 two sides of lock groove and pawl 2
The lock groove 14 that parking gear 1 is left under the action of 24 component far from 1 lock groove 14 of parking gear, when lobe plate 6 continues to turn
It moves non-63 bottom of parking lock slot and when roller 91 of leaf spring 9 contacts stops operating, P gear halting mechanism returns to as shown in Figure 1
Non- parked state.
P according to an embodiment of the present invention keeps off halting mechanism, and structure is simple, and part shape is simple, parking high reliablity, and energy
The case where preventing vehicle pawl 2 in driving status from falling into the lock groove 14 of parking gear 1 and stopping vehicle false-lock.
The invention also discloses a kind of vehicles.
There is vehicle according to an embodiment of the present invention the P of any of the above-described kind of embodiment to keep off halting mechanism.It is real according to the present invention
Apply the vehicle parking high reliablity of example.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (17)
1. a kind of P keeps off halting mechanism characterized by comprising
Shell；
Parking gear；
Pawl, the pawl are spaced apart under non-parked state with the parking gear；
Block, the block are fixedly connected with the shell, and are located at the side that the pawl deviates from the parking gear；
Rod assembly, the rod assembly is between the pawl and the block；
Executing agency, the executing agency are connected by drive shaft with the rod assembly, and the pawl may be pivotally mounted to
The drive shaft, so that the rod assembly is suitable for only to the block and the pawl to push the pawl rotation to locking
The parking gear；
The pawl be set in the drive shaft it is outer and with the drive shaft clearance fit, the drive shaft and the parking gear
Axis be arranged in parallel.
2. P according to claim 1 keeps off halting mechanism, which is characterized in that the direction of motion of the rod assembly with it is described
The axis of drive shaft is vertical.
3. P according to claim 1 keeps off halting mechanism, which is characterized in that further include: return unit, the return unit and institute
It states pawl to be connected, so that the pawl is spaced apart with the parking gear under normal conditions.
4. P according to claim 3 keeps off halting mechanism, which is characterized in that the return unit includes torsional spring, the torsion spring set
Set on the drive shaft, the positive stop end of the torsional spring compresses the shell, and the effect end elasticity of the torsional spring compresses the pawl.
5. P described in any one of -4 keeps off halting mechanism according to claim 1, which is characterized in that further include:
Drive shaft, the drive shaft are connect with executing agency's power coupling；
Lobe plate, the lobe plate are fixedly connected with the drive shaft, and the rod assembly is connected with the lobe plate.
6. P according to claim 5 keeps off halting mechanism, which is characterized in that further include: leaf spring, the leaf spring and the shell
Body is fixedly connected, and the leaf spring is equipped with roller, and the outer periphery of the lobe plate is equipped with the parking for being suitable for cooperating with the roller
Lock groove and non-parking lock slot.
7. P according to claim 6 keeps off halting mechanism, which is characterized in that the outer periphery of the lobe plate includes arc section,
And the center of circle is located on the axis of the drive shaft.
8. P according to claim 6 keeps off halting mechanism, which is characterized in that the parking lock slot and the non-parking lock
Only slot is V-arrangement.
9. P according to claim 5 keeps off halting mechanism, which is characterized in that the rod assembly includes:
Pull rod, the pull rod are connected with the lobe plate；
Closing piece, the closing piece are slidably mounted on the pull rod；
Elastic component, the elastic component elastic connection is between the pull rod and the closing piece.
10. P according to claim 9 keeps off halting mechanism, which is characterized in that the pull rod includes sequentially connected guiding
Section, changeover portion, linkage section, the axis of the guide section is vertical with the pivot axis of the pawl, the axis of the linkage section with
The axis of the guide section is vertical, and the elastic component is spring, and is sheathed on outside the guide section, the closing piece clearance fit
It is sheathed on the guide section, the lobe plate is equipped with connecting hole, and the linkage section protrudes into the connecting hole.
11. P according to claim 10 keeps off halting mechanism, which is characterized in that the pull rod further include: end face limited block,
The end face limited block is located at one end far from the changeover portion of the guide section, and the end face limited block includes conical surface section
With cylinder section, the bottom of the conical surface section is connected with one end far from the closing piece of the cylinder section, under the conical surface section
The diameter of one end towards the end face limited block of the diameter at bottom, the diameter of described one end of the cylinder section, the closing piece
It is identical.
12. P according to claim 9 keeps off halting mechanism, which is characterized in that the closing piece includes the cylinder being sequentially connected
Section, the first rotary table section, the second rotary table section, the taper of the first rotary table section are greater than the taper of the second rotary table section.
13. P according to claim 12 keeps off halting mechanism, which is characterized in that the taper of the first rotary table section is a, institute
The taper for stating the second rotary table section is b, is met: 1≤a≤1.8,0.1≤b≤0.2.
14. P according to claim 12 keeps off halting mechanism, which is characterized in that the pawl has pawl working face, described
Pawl working face includes the non-parking confined planes of pawl and pawl parking confined planes, the non-parking confined planes of pawl to the parking
The distance of gear is less than the pawl parking confined planes to the distance of the parking gear；
The block has block working face, and the block working face includes the non-parking confined planes of block and block parking limit
Face, the distance of the non-parking confined planes of block to the parking gear are greater than the block parking confined planes to the park tooth
The distance of wheel；
The closing piece is between the pawl working face and the block working face, under non-parked state, the cylindrical section
Between the pawl parking confined planes and the block parking confined planes, the second rotary table section is located at that the pawl is non-stays
Between vehicle confined planes and the non-parking confined planes of the block, under parked state, the second rotary table section is located at the pawl and stays
To push parking gear described in the pawl rotation to locking between vehicle confined planes and the block parking confined planes.
15. P according to claim 14 keeps off halting mechanism, which is characterized in that the pawl working face includes pawl transition
Face, the pawl transition face are connected between the non-parking confined planes of the pawl and the pawl parking confined planes, the pawl
The angle of transition face and the non-parking confined planes of the pawl and the pawl parking confined planes is between 100 ° -160 °；
The block working face includes block transition face, and the block transition face is connected to the non-parking confined planes of the block and institute
It states between block parking confined planes, the block transition face and the non-parking confined planes of the block and the block parking confined planes
Angle between 100 ° -160 °.
16. P described in any one of -4 keeps off halting mechanism according to claim 1, which is characterized in that the executing agency is electronic
Formula or hand.
17. a kind of vehicle, which is characterized in that have the P as described in any one of claim 1-16 to keep off halting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995863.0A CN107606145B (en) | 2017-10-23 | 2017-10-23 | P keeps off parking mechanism and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995863.0A CN107606145B (en) | 2017-10-23 | 2017-10-23 | P keeps off parking mechanism and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606145A CN107606145A (en) | 2018-01-19 |
| CN107606145B true CN107606145B (en) | 2019-09-03 |
Family
ID=61080481
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710995863.0A Active CN107606145B (en) | 2017-10-23 | 2017-10-23 | P keeps off parking mechanism and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107606145B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667929A (en) * | 2019-01-30 | 2019-04-23 | 北京新能源汽车股份有限公司 | P keeps off parking mechanism and has its vehicle |
| CN110939732B (en) * | 2019-12-11 | 2021-12-17 | 义乌吉利自动变速器有限公司 | Common actuator of clutch and parking mechanism |
| JP2022116666A (en) * | 2021-01-29 | 2022-08-10 | 日本電産株式会社 | Parking mechanism and drive device |
| CN115046007B (en) * | 2022-06-17 | 2023-04-14 | 安徽江淮汽车集团股份有限公司 | Electronic parking mechanism of transmission |
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|---|---|
| CN107606145A (en) | 2018-01-19 |
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