CN107859740A - P keeps off parking mechanism and vehicle - Google Patents

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 pivotally mounted within the housing and spaced from the parking gear in the non-parking state; the stop block is fixedly connected with the shell and is positioned on one side of the pawl, which is far away from the parking gear; the pull rod assembly is positioned between the pawl and the stop block; the actuating mechanism is connected with the pull rod assembly through the cam plate 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; wherein one of the cam plate and the pawl is provided with a limit pin, the other one is provided with a limit groove, and the limit pin extends into the limit groove to limit the rotation of the pawl in a non-parking state. The P-gear parking mechanism has good stability of gear engagement and parking, has high structural reliability, and can prevent mistaken gear engagement when a vehicle jolts by designing a locking structure.

Description

P keeps off halting mechanism and vehicle

Technical field

The invention belongs to technical field of vehicle manufacture, keeps off halting mechanism in particular to a kind of P and is stayed with P gears The vehicle of mechanism of car.

Background technology

P keep off parking lock device under stationary vehicle or lower-speed state can safe parking, prevent vehicle from coming down.Related skill The P gear general parts of parking device in art disperse, and occupancy shell space is larger, and the P gear parking devices in correlation technique Ratchet is typically resisted by torsion spring, prevents that ratchet is fallen into the teeth groove of parking gear in vehicle traveling, but the moment of torsion that torsion spring provides It is limited, it is not avoided that vehicle makes ratchet fall into teeth groove under the road conditions of severe jolt still, causes vehicle moment locking, endanger Danger.

The content of the invention

It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes a kind of P gears Halting mechanism, the P gears halting mechanism can prevent from occurring to put into gear by mistake when vehicle from jolting.

P gear halting mechanisms according to embodiments of the present invention include：Housing；Parking gear；Ratchet, the ratchet is pivotly It is installed in the housing, and is spaced apart under non-parked state with the parking gear；Block, the block and the housing It is fixedly connected, and deviates from the side of the parking gear positioned at the ratchet；Rod assembly, the rod assembly are located at the spine Between pawl and the block；Executing agency, the executing agency is connected by lobe plate with the rod assembly, so that the drawing Bar assembly is suitable to only support the block and the ratchet to promote the pawl rotation to parking gear described in locking；It is wherein described One in lobe plate and the ratchet is provided with spacer pin, and another is provided with stopper slot, described spacing under non-parked state Pin stretches into the stopper slot to limit the pawl rotation.

P gear halting mechanisms according to embodiments of the present invention, the limitation moved by block to rod assembly and guiding, P gears The parking stability of putting into gear of halting mechanism is good, and the structural reliability of P gear halting mechanisms is high, and by latch design structure, can be with Prevent from occurring to put into gear by mistake when vehicle from jolting.

P according to an embodiment of the invention keeps off halting mechanism, and the stopper slot includes locking section and free segment, stayed non- Under car state, the spacer pin stretches into the locking section and is bonded with the perisporium of the locking section, when departing from non-parked state, The spacer pin turns to the free segment, and is spaced apart with the perisporium of the free segment.

P according to an embodiment of the invention keeps off halting mechanism, and the locking section is semicircle, and the free segment is arc Shape.

P according to an embodiment of the invention keeps off halting mechanism, and the stopper slot is through-hole type or blind-hole type.

P according to an embodiment of the invention keeps off halting mechanism, and rotation direction of the stopper slot along the lobe plate is prolonged Stretch.

P according to an embodiment of the invention keeps off halting mechanism, at least part of the lobe plate with the ratchet extremely Small part is stacked in the axial direction of the drive shaft, and the spacer pin is located at the side of the direction ratchet of the lobe plate, The stopper slot is located at the ratchet.

P according to an embodiment of the invention keeps off halting mechanism, in addition to：Leaf spring, the leaf spring are fixed with the housing Connection, and the leaf spring is provided with roller, the periphery of the lobe plate is along provided with the parking lock groove for being suitable to coordinate with the roller With non-parking lock groove.

P according to an embodiment of the invention keeps off halting mechanism, and the periphery edge of the lobe plate includes arc section, and the center of circle On the pivot center of the lobe plate, the parking lock groove and the non-parking lock groove are V-arrangement.

P according to an embodiment of the invention keeps off halting mechanism, in addition to：Drive shaft, the drive shaft and the execution Mechanism power coupling connection, the lobe plate are fixedly connected with the drive shaft.

P according to an embodiment of the invention keeps off halting mechanism, in addition to：Torsion spring, the torsion spring set pivot located at ratchet Axle, the positive stop end of the torsion spring compress the drive shaft, and the effect end elasticity of the torsion spring compresses the ratchet, so that the spine 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 ratchet is located at the drive shaft and the pull bar is total Between.

P according to an embodiment of the invention keeps off halting mechanism, and the rod assembly includes：Pull bar, the pull bar and institute Lobe plate is stated to be connected；Closing piece, the closing piece are slidably mounted on the pull bar；Elastic component, the elastic component elastic connection Between the pull bar and the closing piece.

P according to an embodiment of the invention keeps off halting mechanism, and the closing piece includes cylindrical section, the first circle being sequentially connected Platform section, the second round platform section, the taper of the first round platform section are more than the taper of the second round platform section.

P according to an embodiment of the invention keeps off halting mechanism, and the ratchet has ratchet working face, the ratchet work Face includes the non-parking confined planes of ratchet and ratchet parking confined planes, the non-parking confined planes of ratchet to the parking gear away from With a distance from less than the ratchet 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 more than the block parking confined planes to the parking gear distance；The closing piece be located at the ratchet working face with Between the block working face, under non-parked state, the cylindrical section is located at the ratchet parking confined planes and the block Between parking confined planes, the second round platform section be located at the non-parking confined planes of the ratchet and the non-parking confined planes of the block it Between, under parked state, the second round platform section is between the ratchet parking confined planes and the block parking confined planes To promote the pawl rotation to parking gear described in locking.

P according to an embodiment of the invention keeps off halting mechanism, and the ratchet working face includes ratchet transition face, the spine Pawl transition face is connected between the non-parking confined planes of the ratchet and the ratchet parking confined planes, the ratchet transition face and institute The angle of the non-parking confined planes of ratchet and the ratchet 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 angles of the block transition face and the non-parking confined planes of the block and the block parking confined planes between Between 100 ° -160 °.

The invention also provides a kind of vehicle, has any described P gear halting mechanisms as described above.

The vehicle and above-mentioned P gear halting mechanisms are same relative to Dominant Facies possessed by prior art, no longer superfluous herein State.

The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.

Brief description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Substantially and it is readily appreciated that, wherein：

Fig. 1 is the structural representation of P gear halting mechanisms according to embodiments of the present invention in non-parked state；

Fig. 2 is the structural representation of P gear halting mechanisms according to embodiments of the present invention in pre- parked state；

Fig. 3 is the structural representation of P gear halting mechanisms according to embodiments of the present invention in parked state；

Fig. 4 is the partial enlarged drawing at A in Fig. 3；

Fig. 5 is lobe plate according to embodiments of the present invention and the structural representation of drive shaft；

Fig. 6 is the structural representation of rod assembly according to embodiments of the present invention；

Fig. 7 is the structural representation of pull bar according to embodiments of the present invention and end face limited block.

Reference：

Parking gear 1, lock groove 14,

Ratchet 2, the non-parking confined planes 21 of ratchet, ratchet transition face 22, ratchet parking confined planes 23, locking tooth 24 are spacing Groove 25, locking section 25a, free segment 25b, ratchet pivotal axis 26,

Torsion 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 groove 62, non-parking lock groove 63, spacer pin 64,

Pull bar 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 round platform section 82, the second round platform section 83,

Leaf spring 9, roller 91.

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, is only used 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 " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".The present invention's In description, unless otherwise indicated, " multiple " are meant that two or more.

In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.

P according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 7 and keeps off halting mechanism, and the P gears of the embodiment of the present invention are stayed Mechanism of car both can apply to pure electric automobile decelerator, can apply to fuel vehicle automatic transmission again.

Embodiment 1

As shown in Figure 1-Figure 3, P gears halting mechanism according to an embodiment of the invention includes：Housing (not shown), Parking gear 1, ratchet 2, block 4, executing agency 51 and rod assembly.

Wherein, housing 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, and parking gear 1 can have lock groove 14, when parking gear 1 is locked When only, you can cut-out power output, realize that P keeps off parking.

Ratchet 2 may be pivotally mounted in housing, and ratchet 2 can may be pivotally mounted to shell by ratchet pivotal axis 26 Body, ratchet pivotal axis 26 can be fixedly connected with the casing, and ratchet 2 is set in outside ratchet pivotal axis 26 by through hole, and and ratchet The gap of pivotal axis 26 coordinates, and ratchet 2 can be long strip-board shape.

Ratchet 2 and 1 substantially coplanar setting of parking gear, or the folder between the axis of the normal of ratchet 2 and parking gear 1 10 ° of angle ＜, ratchet 2 have locking tooth 24, a laterally closer parking gear 1 towards parking gear 1 of the locking tooth 24 from ratchet 2 Direction protrusion, when ratchet 2 turns to locking tooth 24 around ratchet pivotal axis 26 is caught in lock groove 14, you can locking parking gear 1, realize that P keeps off parking.

Ratchet 2 is spaced apart with parking gear 1 under non-parked state, and ratchet 2 does not interfere the rotation of parking gear 1.P gears are stayed Mechanism of car can also include：Return unit, return unit are connected with ratchet 2, so that ratchet 2 is spaced apart with parking gear 1 under normal conditions. For example return unit can include torsion spring 3, torsion spring 3 is sheathed on ratchet pivotal axis 26, and the positive stop end of torsion spring 3 compresses drive shaft 52, turns round The effect end elasticity of spring 3 compresses ratchet 2.

Block 4 is fixedly connected with the casing, and block 4 is located at the side that ratchet 2 deviates from parking gear 1, that is to say, that ratchet 2 between block 4 and parking gear 1, and block 4 is spaced apart with ratchet 2.

Between ratchet 2 and block 4, rod assembly is used to promote ratchet 2 to rotate around ratchet pivotal axis 26 rod assembly, Block 4 is used to limiting rod assembly to move towards away from the direction of ratchet 2, and by rod assembly be clamped in ratchet 2 and block 4 it Between, so, the kinetic stability of rod assembly is higher, and ratchet 2 can also play certain guiding with block 4 to rod assembly Effect.

Executing agency 51 puts into gear driving force for input, and executing agency 51 is connected with rod assembly, and executing agency 51 can be with Rod assembly is set to move predetermined stroke, executing agency 51 can be electrodynamic type or hand, be electrodynamic type in executing agency 51 When can realize that automatic parking or unblock, such as executing agency 51 include motor；When executing agency 51 is hand, Ke Yitong Hand engaging gear parking or unblock are crossed, for example executing agency 51 is stay-supported or the formula of pull bar 7.

Input parking operation, executing agency 51 drives rod assembly, rod assembly be suitable to only baffle 4 to promote ratchet 2 Locking parking gear 1 is turned to, the direction of motion of rod assembly is vertical with the pivot axis of ratchet 2, the motion rail of rod assembly Mark, ratchet 2 movement locus can be vertical with the axis of parking gear 1.

P gear halting mechanisms according to embodiments of the present invention, the limitation moved by block 4 to rod assembly and guiding, P gears The parking stability of putting into gear of halting mechanism is good, and the structural reliability of P gear halting mechanisms is high, and the movement locus baseset of movement parts In on one face, the volume of mechanism can be reduced.

Embodiment 2

As shown in Figure 1-Figure 3, P gears halting mechanism according to an embodiment of the invention includes：Housing (not shown), Parking gear 1, ratchet 2, block 4, executing agency 51 and rod assembly.

Wherein, housing 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 out, you can cut-out power output.

Ratchet 2 may be pivotally mounted in housing, and ratchet 2 can may be pivotally mounted to shell by ratchet pivotal axis 26 Body, ratchet pivotal axis 26 can be fixedly connected with the casing, and ratchet 2 is set in outside ratchet pivotal axis 26 by through hole, and ratchet 2 with The gap of ratchet pivotal axis 26 coordinates, and ratchet 2 can be long strip-board shape.

Ratchet 2 and 1 substantially coplanar setting of parking gear, or the folder between the axis of the normal of ratchet 2 and parking gear 1 10 ° of angle ＜, ratchet 2 have locking tooth 24, a laterally closer parking gear 1 towards parking gear 1 of the locking tooth 24 from ratchet 2 Direction protrusion, when ratchet 2 turns to locking tooth 24 around ratchet pivotal axis 26 is caught in the lock groove 14 of parking gear 1, you can Locking parking gear 1, realize that P keeps off parking.

Ratchet 2 is spaced apart with parking gear 1 under non-parked state, and ratchet 2 does not interfere the rotation of parking gear 1.P gears are stayed Mechanism of car can also include：Return unit, return unit are connected with ratchet 2, so that ratchet 2 is spaced apart with parking gear 1 under normal conditions. For example return unit can include torsion spring 3, torsion spring 3 is sheathed on ratchet pivotal axis 26, and the positive stop end of torsion spring 3 compresses drive shaft 52, turns round The effect end elasticity of spring 3 compresses ratchet 2.

Block 4 is fixedly connected with the casing, and block 4 is located at the side that ratchet 2 deviates from parking gear 1, that is to say, that ratchet 2 between block 4 and parking gear 1, and block 4 is spaced apart with ratchet 2.

Ratchet 2 has ratchet working face away from the side of parking gear 1, and ratchet working face can be to stay deviating from for ratchet 2 The part side edge of the side of skiving wheel 1.Block 4 has block working face, and block working face is located at ratchet 2 away from parking gear 1 Side, for example groove is dug on the block 4 of bulk, a part of of a side wall of groove can form block working face, groove Bottom wall can play spacing effect to rod assembly, particularly limit axial direction of the closing piece 8 of rod assembly along parking gear 1 Rock.

Ratchet working face is oppositely arranged with block working face, rod assembly be located at ratchet working face and block working face it Between, rod assembly is used to promote ratchet 2 to rotate around ratchet pivotal axis 26, and block working face deviates from spine for limiting rod assembly court The direction motion of pawl working face, and rod assembly is clamped between ratchet working face and block working face, so, rod assembly Kinetic stability it is higher, and ratchet working face and block working face can also play certain guide effect to rod assembly.

Executing agency 51 puts into gear driving force for input, and executing agency 51 is connected with rod assembly, and executing agency 51 can be with Rod assembly is set to move predetermined stroke, executing agency 51 can be electrodynamic type or hand, be electrodynamic type in executing agency 51 When can realize that automatic parking or unblock, such as executing agency 51 include motor；When executing agency 51 is hand, Ke Yitong Hand engaging gear parking or unblock are crossed, executing agency 51 can be stay-supported or rod-pulling type.

Parking operation is inputted, executing agency 51 drives rod assembly, and rod assembly is suitable to only baffle working face and ratchet For working face to promote ratchet 2 to turn to locking parking gear 1, the direction of motion of rod assembly is vertical with the pivot axis of ratchet 2, The movement locus of rod assembly, the movement locus of ratchet 2 can be vertical with the axis of parking gear 1.

P gears halting mechanism according to embodiments of the present invention, by block working face, ratchet working face to the limit of rod assembly With being oriented to, the kinetic stability of rod assembly is good for position, and P gear halting mechanisms put into gear that parking stability is good, reliability is high, and move In the movement locus baseset of part on one face, the volume of mechanism can be reduced.

Embodiment 3

As shown in Figure 1-Figure 3, P gears halting mechanism according to an embodiment of the invention includes：Housing (not shown), Parking gear 1, ratchet 2, block 4, executing agency 51 and rod assembly.

Wherein, housing 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 out, you can cut-out power output.

Ratchet 2 may be pivotally mounted in housing, and ratchet 2 can may be pivotally mounted to shell by ratchet pivotal axis 26 Body, ratchet pivotal axis 26 can be fixedly connected with the casing, and ratchet 2 is set in outside ratchet pivotal axis 26 by through hole, and ratchet 2 with The gap of ratchet pivotal axis 26 coordinates, and ratchet 2 can be long strip-board shape.

Ratchet 2 and 1 substantially coplanar setting of parking gear, or the folder between the axis of the normal of ratchet 2 and parking gear 1 10 ° of angle ＜, ratchet 2 have locking tooth 24, a laterally closer parking gear 1 towards parking gear 1 of the locking tooth 24 from ratchet 2 Direction protrusion, when ratchet 2 turns to locking tooth 24 around ratchet pivotal axis 26 is caught in the lock groove 14 of parking gear 1, you can Locking parking gear 1, realize that P keeps off parking.

Ratchet 2 is spaced apart with parking gear 1 under non-parked state, and ratchet 2 does not interfere the rotation of parking gear 1.P gears are stayed Mechanism of car can also include：Return unit, return unit are connected with ratchet 2, so that ratchet 2 is spaced apart with parking gear 1 under normal conditions. For example return unit can include torsion spring 3, torsion spring 3 is sheathed on ratchet pivotal axis 26, and the positive stop end of torsion spring 3 compresses drive shaft 52, turns round The effect end elasticity of spring 3 compresses ratchet 2.

Block 4 is fixedly connected with the casing, and block 4 is located at the side that ratchet 2 deviates from parking gear 1, that is to say, that ratchet 2 between block 4 and parking gear 1, and block 4 is spaced apart with ratchet 2.

Between ratchet 2 and block 4, rod assembly is used to promote ratchet 2 to rotate around ratchet pivotal axis 26 rod assembly, Block 4 is used to limiting rod assembly to move towards away from the direction of ratchet 2, and by rod assembly be clamped in ratchet 2 and block 4 it Between, so, the kinetic stability of rod assembly is higher, and ratchet 2 can also play certain guiding with block 4 to rod assembly Effect.

Executing agency 51 is put into gear driving force for input, and executing agency 51 is connected by drive shaft 52 with rod assembly, is driven The input of moving axis 52 is connected 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 joined directly together, the output end of drive shaft 52 can be indirectly connected with rod assembly.

Executing agency 51 can make drive shaft 52 rotate predetermined angle, so that rod assembly moves predetermined stroke, Executing agency 51 can be electrodynamic type or hand, and automatic parking or unblock can be realized when executing agency 51 is electrodynamic type, For example executing agency 51 includes motor；When executing agency 51 is hand, can manually put into gear parking or unblock, perform Mechanism 51 can be stay-supported or rod-pulling type.

Input parking operation, executing agency 51 drives rod assembly, rod assembly be suitable to only baffle 4 to promote ratchet 2 Locking parking gear 1 is turned to, the direction of motion of rod assembly is vertical with the pivot axis of ratchet 2, the motion rail of rod assembly Mark, ratchet 2 movement locus can be vertical with the axis of parking gear 1.

As shown in Figure 1-Figure 3, for ratchet 2 between drive shaft 52 and rod assembly, the structure of such P gears halting mechanism is tight Gather, the installing space of occupancy is small.

P gear halting mechanisms according to embodiments of the present invention, the limitation moved by block 4 to rod assembly and guiding, P gears The parking stability of putting into gear of halting mechanism is good, and the structural reliability of P gear halting mechanisms is high, and the movement locus baseset of movement parts In on one face, ratchet 2 between drive shaft 52 and rod assembly, P keep off halting mechanism compact-sized, the installation of occupancy Space is small.

Embodiment 4

As shown in Figure 1-Figure 3, P gears halting mechanism according to an embodiment of the invention includes：Housing (not shown), Parking gear 1, ratchet 2, block 4, executing agency 51 and rod assembly.

Wherein, housing 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 out, you can cut-out power output.

Ratchet 2 may be pivotally mounted in housing, and ratchet 2 can may be pivotally mounted to shell by ratchet pivotal axis 26 Body, ratchet pivotal axis 26 can be fixedly connected with the casing, and ratchet 2 is set in outside ratchet pivotal axis 26 by through hole, and ratchet 2 with The gap of ratchet pivotal axis 26 coordinates, and ratchet 2 can be long strip-board shape.

Ratchet 2 and 1 substantially coplanar setting of parking gear, or the folder between the axis of the normal of ratchet 2 and parking gear 1 Angle is less than 10 °, and ratchet 2 has locking tooth 24, a laterally closer park tooth towards parking gear 1 of the locking tooth 24 from ratchet 2 The direction protrusion of wheel 1, when ratchet 2 turns to locking tooth 24 around ratchet pivotal axis 26 is caught in the lock groove 14 of parking gear 1, i.e., Can locking parking gear 1, realize P keep off parking.

Ratchet 2 is spaced apart with parking gear 1 under non-parked state, and ratchet 2 does not interfere the rotation of parking gear 1.P gears are stayed Mechanism of car can also include：Return unit, return unit are connected with ratchet 2, so that ratchet 2 is spaced apart with parking gear 1 under normal conditions. For example return unit can include torsion spring 3, torsion spring 3 is sheathed on ratchet pivotal axis 26, and the positive stop end of torsion spring 3 compresses drive shaft 52, turns round The effect end elasticity of spring 3 compresses ratchet 2.

Block 4 is fixedly connected with the casing, and block 4 is located at the side that ratchet 2 deviates from parking gear 1, that is to say, that ratchet 2 between block 4 and parking gear 1, and block 4 is spaced apart with ratchet 2.

Between ratchet 2 and block 4, rod assembly is used to promote ratchet 2 to rotate around ratchet pivotal axis 26 rod assembly, Block 4 is used to limiting rod assembly to move towards away from the direction of ratchet 2, and by rod assembly be clamped in ratchet 2 and block 4 it Between, so, the kinetic stability of rod assembly is higher, and ratchet 2 can also play certain guiding with block 4 to rod assembly Effect.

Executing agency 51 is put into gear driving force for input, and executing agency 51 is connected by lobe plate 6 with rod assembly, cam Plate 6 can be with generally fan.Executing agency 51 can make lobe plate 6 rotate predetermined angle, so that rod assembly motion is pre- Fixed stroke.

Executing agency 51 is electrodynamic type or hand, and automatic parking or solution can be realized when executing agency 51 is electrodynamic type Lock, for example when executing agency 51 can be motor, when executing agency 51 is hand, can manually put into gear parking or solution Lock, executing agency 51 can be stay-supported or rod-pulling type.

Input parking operation, executing agency 51 drives rod assembly, rod assembly be suitable to only baffle 4 to promote ratchet 2 Locking parking gear 1 is turned to, the direction of motion of rod assembly is vertical with the pivot axis of ratchet 2, the motion rail of rod assembly Mark, ratchet 2 movement locus can be vertical with the axis of parking gear 1.

As shown in Fig. 1-Fig. 3 and Fig. 5, one in lobe plate 6 and ratchet 2 is provided with spacer pin 64, lobe plate 6 and ratchet Another in 2 is provided with stopper slot 25, and under non-parked state, spacer pin 64 stretches into stopper slot 25 and rotated with limiting ratchet 2.

It is understood that under non-parked state, spacer pin 64 stretches into stopper slot 25 so that ratchet 2 is locked by lobe plate 6 Extremely, when lobe plate 6 does not turn, ratchet 2 can not rotate, it is possible thereby to effectively prevent the lock of vehicle ratchet 2 under road conditions of jolting Only tooth 24 falls into the lock groove 14 of parking gear 1, will not occur to put into gear by mistake；When needing parking to put into gear, lobe plate 6 rotates, limit Position pin 64 is relatively rotated with stopper slot 25 so that ratchet 2 is unlocked, and is not influenceed normal parking and is put into gear.

P gear halting mechanisms according to embodiments of the present invention, the limitation moved by block 4 to rod assembly and guiding, P gears The parking stability of putting into gear of halting mechanism is good, and the structural reliability of P gear halting mechanisms is high, and by latch design structure, can be with Prevent from occurring to put into gear by mistake when vehicle from jolting.

Embodiment 5

As shown in Figure 1-Figure 3, P gears halting mechanism according to an embodiment of the invention includes：Housing (not shown), Parking gear 1, ratchet 2, block 4, executing agency 51 and rod assembly.

Wherein, housing 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 out, you can cut-out power output.

Ratchet 2 may be pivotally mounted in housing, and ratchet 2 can may be pivotally mounted to shell by ratchet pivotal axis 26 Body, ratchet pivotal axis 26 can be fixedly connected with the casing, and ratchet 2 is set in outside ratchet pivotal axis 26 by through hole, and ratchet 2 with The gap of ratchet pivotal axis 26 coordinates, and ratchet 2 can be long strip-board shape.

Ratchet 2 and 1 substantially coplanar setting of parking gear, or the folder between the axis of the normal of ratchet 2 and parking gear 1 10 ° of angle ＜, ratchet 2 have locking tooth 24, a laterally closer parking gear 1 towards parking gear 1 of the locking tooth 24 from ratchet 2 Direction protrusion, when ratchet 2 turns to locking tooth 24 around ratchet pivotal axis 26 is caught in the lock groove 14 of parking gear 1, you can Locking parking gear 1, realize that P keeps off parking.

Ratchet 2 is spaced apart with parking gear 1 under non-parked state, and ratchet 2 does not interfere the rotation of parking gear 1.P gears are stayed Mechanism of car can also include：Return unit, return unit are connected with ratchet 2, so that ratchet 2 is spaced apart with parking gear 1 under normal conditions. For example return unit can include torsion spring 3, torsion spring 3 is sheathed on ratchet pivotal axis 26, and the positive stop end of torsion spring 3 compresses drive shaft 52, turns round The effect end elasticity of spring 3 compresses ratchet 2.

Block 4 is fixedly connected with the casing, and block 4 is located at the side that ratchet 2 deviates from parking gear 1, that is to say, that ratchet 2 between block 4 and parking gear 1, and block 4 is spaced apart with ratchet 2.

Between ratchet 2 and block 4, rod assembly is used to promote ratchet 2 to rotate around ratchet pivotal axis 26 rod assembly, Block 4 is used to limiting rod assembly to move towards away from the direction of ratchet 2, and by rod assembly be clamped in ratchet 2 and block 4 it Between, so, the kinetic stability of rod assembly is higher, and ratchet 2 can also play certain guiding with block 4 to rod assembly Effect.

Executing agency 51 is put into gear driving force for input, and executing agency 51 is connected by drive shaft 52 with rod assembly, is driven The input of moving axis 52 is connected 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 joined directly together, the output end of drive shaft 52 can be indirectly connected with rod assembly.

Executing agency 51 can make drive shaft 52 rotate predetermined angle, so that rod assembly moves predetermined stroke, Executing agency 51 can be electrodynamic type or hand, and automatic parking or unblock can be realized when executing agency 51 is electrodynamic type, For example executing agency 51 includes motor；When executing agency 51 is hand, can manually put into gear parking or unblock, perform Mechanism 51 can be stay-supported or rod-pulling type.

As shown in Figure 1-Figure 3, the diameter parallel of drive shaft 52 and parking gear 1 is set, it is possible thereby to by executing agency 51 The side of decelerator is arranged in, is advantageous to optimize the space arrangement of vehicle.

Input parking operation, executing agency 51 drives rod assembly, rod assembly be suitable to only baffle 4 to promote ratchet 2 Locking parking gear 1 is turned to, the direction of motion of rod assembly is vertical with the pivot axis of ratchet 2, the motion rail of rod assembly Mark, ratchet 2 movement locus can be vertical with the axis of parking gear 1.

P gear halting mechanisms according to embodiments of the present invention, the limitation moved by block 4 to rod assembly and guiding, P gears The parking stability of putting into gear of halting mechanism is good, and the structural reliability of P gear halting mechanisms is high, and the movement locus baseset of movement parts In on one face, the diameter parallel of drive shaft 52 and parking gear 1 is set, P gear halting mechanisms it is compact-sized, be advantageous to excellent Change the space arrangement of vehicle.

Embodiment 6

As shown in Figure 1-Figure 3, P gears halting mechanism according to an embodiment of the invention includes：Housing (not shown), Parking gear 1, ratchet 2, block 4, executing agency 51 and rod assembly.

Wherein, housing 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 out, you can cut-out power output.

Ratchet 2 may be pivotally mounted in housing, and ratchet 2 can may be pivotally mounted to shell by ratchet pivotal axis 26 Body, ratchet pivotal axis 26 can be fixedly connected with the casing, and ratchet 2 is set in outside ratchet pivotal axis 26 by through hole, and ratchet 2 with The gap of ratchet pivotal axis 26 coordinates, and ratchet 2 can be long strip-board shape.

Ratchet 2 and 1 substantially coplanar setting of parking gear, or the folder between the axis of the normal of ratchet 2 and parking gear 1 10 ° of angle ＜, ratchet 2 have locking tooth 24, a laterally closer parking gear 1 towards parking gear 1 of the locking tooth 24 from ratchet 2 Direction protrusion, when ratchet 2 turns to locking tooth 24 around ratchet pivotal axis 26 is caught in the lock groove 14 of parking gear 1, you can Locking parking gear 1, realize that P keeps off parking.

Ratchet 2 is spaced apart with parking gear 1 under non-parked state, and ratchet 2 does not interfere the rotation of parking gear 1.P gears are stayed Mechanism of car can also include：Return unit, return unit are connected with ratchet 2, so that ratchet 2 is spaced apart with parking gear 1 under normal conditions. For example return unit can include torsion spring 3, torsion spring 3 is sheathed on ratchet pivotal axis 26, and the positive stop end of torsion spring 3 compresses drive shaft 52, turns round The effect end elasticity of spring 3 compresses ratchet 2.

Block 4 is fixedly connected with the casing, and block 4 is located at the side that ratchet 2 deviates from parking gear 1, that is to say, that ratchet 2 between block 4 and parking gear 1, and block 4 is spaced apart with ratchet 2.

Rod assembly is between ratchet 2 and block 4, as shown in fig. 6, rod assembly includes pull bar 7, closing piece 8 and elasticity Part 75, closing piece 8 are slidably mounted on pull bar 7, and the elastic connection of elastic component 75 is between pull bar 7 and closing piece 8.

Closing piece 8 include be sequentially connected cylindrical section 81, the first round platform section 82, the second round platform section 83, the first round platform section 82 Upper bottom is connected with cylindrical section 81, and the bottom of the first round platform section 82 is connected with the upper bottom of the second round platform section 83, and the second round platform section 83, First round platform section 82, cylindrical section 81 are sequentially connected along the direction of motion of the rod assembly in parking.

With reference to figure 6, cylindrical section 81, the first round platform section 82, the axis of the second round platform section 83 overlap, the diameter of cylindrical section 81 with The diameter at the upper bottom of the first round platform section 82 is identical, and the diameter of the bottom of the first round platform section 82 is straight with the upper bottom of the second round platform section 83 Footpath is identical, and the taper of the first round platform section 82 is more than the taper of the second round platform section 83.

As shown in Figure 1-Figure 3, closing piece 8 is used to promote ratchet 2 to rotate around ratchet pivotal axis 26, and block 4 is used to limit closing piece 8 Moved towards away from the direction of ratchet 2, and closing piece 8 is clamped between ratchet 2 and block 4, the kinetic stability of such closing piece 8 is more Height, and ratchet 2 can also play certain guide effect with block 4 to closing piece 8.

Executing agency 51 puts into gear driving force for input, and executing agency 51 is connected with pull bar 7, and executing agency 51 can drive Pull bar 7 moves predetermined stroke, and pull bar 7 drives closing piece 8 to move by elastic component 75, the direction of motion of pull bar 7 and the pivot of ratchet 2 Shaft axis are vertical, and the movement locus of rod assembly, the movement locus of ratchet 2 can be vertical with the axis of parking gear 1.

Parking operation is inputted, executing agency 51 drives pull bar 7, to drive closing piece 8 to stop baffle 4, spine by elastic component 75 Pawl 2, and under parked state, the second round platform section 83 stops baffle 4, ratchet 2 to promote ratchet 2 to turn to locking parking gear 1, Wherein under non-parked state, closing piece 8 can be clamped between block 4 and ratchet 2 always, stop to prevent stop block 4 and ratchet 2 Support, be easy to movement of the follow-up closing piece 8 relative to ratchet 2 and block 4, the first larger round platform section 82 of taper can during parking To play guide effect, the less second round platform section 83 of taper can play certain guide effect in parking process, and solve The driving torque needed for unblock can be reduced during lock.

Executing agency 51 is electrodynamic type or hand, and automatic parking or solution can be realized when executing agency 51 is electrodynamic type Lock, for example when executing agency 51 can be motor, when executing agency 51 is hand, can manually put into gear parking or solution Lock, executing agency 51 can be stay-supported or the formula of pull bar 7.

P gear halting mechanisms according to embodiments of the present invention, the limitation moved by block 4 to rod assembly and guiding, with And the closing piece 8 of design said structure form, the parking stability of putting into gear of P gear halting mechanisms is good, convenient for unlocking, P gear halting mechanisms Structural reliability it is high, and in the movement locus baseset of movement parts on one face, P gear halting mechanisms it is compact-sized, account for Installing space is small.

In the description of this specification, specific features, structure, material or the feature of description can in any one or Combined in an appropriate manner in multiple embodiments or example, for example the technical characteristic of above-described embodiment 1- embodiments 6 is not being runed counter to In the case of, it can be mutually combined to obtain new embodiment, the mode of combination is not limited to the technical characteristic of two embodiments Combination, can also be the common combination of the technical characteristic of multiple embodiments.

Further, above-described embodiment 1- embodiments 6 can further include following technical characteristics.

As shown in Figure 1-Figure 3, P keeps off halting mechanism and can also included：Drive shaft 52, drive shaft 52 and the power of executing agency 51 It is of coupled connections, for example when executing agency 51 is electric motor type, drive shaft 52 can be connected with motor shaft by shaft coupling, or drive Moving axis 52 can be connected with motor shaft by spline structure.

In some preferred embodiments, with reference to figure 1- Fig. 3, the axis of drive shaft 52, the axis of parking gear 1, ratchet 2 Pivot axis it is parallel, it is possible thereby to executing agency 51 to be arranged in the side of decelerator, P gear halting mechanisms it is compact-sized, Be advantageous to optimize the space arrangement of vehicle.

In some preferred embodiments, with reference to figure 1- Fig. 3, ratchet 2 is between drive shaft 52 and rod assembly, so P keeps off the compact-sized of halting mechanism, and the installing space of occupancy is small.

As shown in Figure 1-Figure 3, P keeps off halting mechanism and can also included：Lobe plate 6, lobe plate 6 is fixed with drive shaft 52 to be connected Connect, for example lobe plate 6 is set in outside drive shaft 52, and be weldingly connected with drive shaft 52, rod assembly is connected with lobe plate 6, than Pull bar 7 such as rod assembly is connected with lobe plate 6, and when drive shaft 52 rotates, lobe plate 6 rotates with drive shaft 52, and drives Pull bar 7 moves.

As shown in Figure 1-Figure 3, P keeps off halting mechanism and can also included：Leaf spring 9, 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 provided with roller 91, and roller 91 can be cylindrical, lobe plate 6 periphery along being provided with parking lock groove 62 and non-parking lock groove 63, parking lock groove 62 and non-parking lock groove 63 suitable for Roller 91 coordinates.

Under non-parked state, roller 91 contacts with non-parking lock groove 63, and elasticity compresses lobe plate 6, to drive When axle 52 does not rotate, lobe plate 6 is locked at current location, P gear halting mechanisms is maintained at P and keeps off position of putting into gear；Needing to stay Che Shi, lobe plate 6 rotate, and edge of the roller 91 along lobe plate 6 rolls, and when roller 91 rolls into parking lock groove 62, ratchet 2 stops To parking gear 1, and the elasticity of roller 91 compresses lobe plate 6, with when drive shaft 52 does not rotate, by the locking of lobe plate 6.

Specifically, as shown in figure 5, parking lock groove 62 and non-parking lock groove 63 can be V-arrangement, such roller 91 rolls Enter and roll out and more facilitate, the periphery edge of lobe plate 6 includes arc section, and the center of circle of the arc section is located at the axle of drive shaft 52 On line, for example lobe plate 6 can be fanning strip.

In some preferred embodiments of the present invention, as shown in Fig. 1-Fig. 3 and Fig. 5, at least part of lobe plate 6 and spine Overlapped in the axial direction at least partially in drive shaft 52 of pawl 2, that is to say, that axial throwing of the lobe plate 6 along drive shaft 52 Shadow has overlapping region with ratchet 2 along the axial projection of drive shaft 52.

One in lobe plate 6 and ratchet 2 is provided with spacer pin 64, and another in lobe plate 6 and ratchet 2 is provided with spacing Groove 25, stopper slot 25 are through-hole type or blind-hole type.For example the side towards ratchet 2 of lobe plate 6 is provided with the protrusion of ratchet 2 Spacer pin 64, ratchet 2 are provided with the unlimited stopper slot 25 of lobe plate 6；Or the side towards lobe plate 6 of ratchet 2 is provided with The spacer pin 64 protruded towards lobe plate 6, lobe plate 6 are provided with the unlimited stopper slot 25 of ratchet 2.

Under non-parked state, spacer pin 64 stretches into stopper slot 25 and rotated with limiting ratchet 2, and stopper slot 25 is along lobe plate 6 Rotation direction extension.

It is understood that under non-parked state, spacer pin 64 stretches into stopper slot 25 so that ratchet 2 is locked by lobe plate 6 Extremely, when lobe plate 6 does not turn, ratchet 2 can not rotate, it is possible thereby to effectively prevent the locking of vehicle ratchet 2 under road conditions of jolting Tooth 24 falls into the lock groove 14 of parking gear 1, will not occur to put into gear by mistake；When needing parking to put into gear, lobe plate 6 rotates, spacing Pin 64 relatively rotates with stopper slot 25 so that ratchet 2 is unlocked, and does not influence normal parking and puts into gear.

Specifically, it is spacing under non-parked state as shown in figure 5, stopper slot 25 includes locking section 25a and free segment 25b Pin 64 stretches into locking section 25a and is bonded with locking section 25a perisporium, and when departing from non-parked state, spacer pin 64 turns to certainly It is spaced apart by section 25b, and with free segment 25b perisporium, spacer pin 64 is cylinder, and locking section 25a is semicircle, with preferably Locking spacer pin 64, free segment 25b is arc, and locking section 25a diameter side is connected with free segment 25b, so in lobe plate 6 During rotation, can easily it unlock.

Thus, by designing above-mentioned locking structure, can effectively prevent from occurring to put into gear by mistake when vehicle from jolting, and do not increase by zero Part count.

In some preferred embodiments of the present invention, as shown in fig. 6, rod assembly includes：Pull bar 7, closing piece 8, elasticity Part 75.

Wherein, pull bar 7 is connected with executing agency 51, and specifically, pull bar 7 is connected with lobe plate 6, and closing piece 8 is slideably pacified Loaded on pull bar 7, the elastic connection of elastic component 75 is between pull bar 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 bar 7 includes guide section 71, changeover portion 72, the linkage section 73 being sequentially connected with, guide section 71 Axis it is vertical with the pivot axis of ratchet 2, at least a portion of changeover portion 72 is arc, the axis and guide section of linkage section 73 71 axis is vertical, and elastic component 75 is spring, and elastic component 75 is sheathed on outside guide section 71, and guide section 71 is connected with changeover portion 72 One end there is fixed lobe, the fixed lobe is only supported in one end of elastic component 75, and the other end of elastic component 75, which stops, supports closing piece 8.

The gap of closing piece 8 is ordinatedly sheathed on guide section 71, and lobe plate 6 is provided with connecting hole, and linkage section 73 stretches into connecting hole, even Spacing preiection can be provided with by connecing section 73, and spacing preiection can be two, axial and circumferential of two spacing preiections in linkage section 73 It is upper to be spaced apart, for limiting linkage section 73 when linkage section 73 stretches into connecting hole, prevent pull bar 7 from deviating from from connecting hole.

Pull bar 7 can also include：End face limited block 74, end face limited block 74 are located at the remote changeover portion 72 of guide section 71 One end, after elastic component 75 and closing piece 8 are arranged into guide section 71, end face limited block 74 and guide section 71 are weldingly connected, made Obtain closing piece 8 and elastic component 75 is limited, and elastic component 75 is in precompressed state.

Specifically, as shown in Figure 6 and Figure 7, end face limited block 74 can include conical surface section and cylinder section, the bottom of conical surface section It is connected with one end of the remote closing piece 8 of cylinder section, the diameter of the bottom of conical surface section, the diameter of one end of cylinder section, the court of 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 round platform section 82, the second round platform section 83, first The upper bottom of round platform section 82 is connected with cylindrical section 81, and the bottom of the first round platform section 82 is connected with the upper bottom of the second round platform section 83, and the Two round platform sections 83, the first round platform section 82, cylindrical section 81 are sequentially connected along the direction of motion of the rod assembly in parking.

With reference to figure 6, cylindrical section 81, the first round platform section 82, the axis of the second round platform section 83 overlap, the diameter of cylindrical section 81 with The diameter at the upper bottom of the first round platform section 82 is identical, and the diameter of the bottom of the first round platform section 82 is straight with the upper bottom of the second round platform section 83 Footpath is identical, and the taper of the first round platform section 82 is more than the taper of the second round platform section 83, it is preferable that and the taper of the first round platform section 82 is a, The taper of second round platform section 83 is b, is 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 used to promote ratchet 2 to rotate around ratchet pivotal axis 26, and block 4 is used to limit closing piece 8 Moved towards away from the direction of ratchet 2, and closing piece 8 is clamped between ratchet 2 and block 4, the kinetic stability of such closing piece 8 is more Height, and ratchet 2 can also play certain guide effect with block 4 to closing piece 8.

Parking operation is inputted, executing agency 51 drives pull bar 7, to drive closing piece 8 to stop baffle 4, spine by elastic component 75 Pawl 2, and under parked state, the second round platform section 83 stops baffle 4, ratchet 2 to promote ratchet 2 to turn to locking parking gear 1, Wherein under non-parked state, cylindrical section 81 can be clamped between block 4 and ratchet 2 always, to prevent stop block 4 and ratchet 2 Only support, be easy to movement of the follow-up closing piece 8 relative to ratchet 2 and block 4, the first larger round platform section 82 of taper is during parking It can play guide effect, the less second round platform section 83 of taper can play certain guide effect in parking process, and The driving torque needed for unblock can be reduced in releasing process.

As Figure 1-Figure 4, ratchet 2 has ratchet working face away from the side of parking gear 1, and ratchet working face can be Ratchet 2 away from the part side edge of the side of parking gear 1.Ratchet working face includes the non-parking confined planes 21 of ratchet and ratchet parking Confined planes 23, the distance of the non-parking confined planes 21 of ratchet to parking gear 1 are less than ratchet parking confined planes 23 to parking gear 1 Distance.Ratchet working face also includes ratchet transition face 22, and ratchet transition face 22 is connected to the non-parking confined planes 21 of ratchet and ratchet Between parking confined planes 23, the angle of the parking confined planes 21 non-with ratchet of ratchet transition face 22 and ratchet parking confined planes 23 is situated between Between 100 ° -160 °.

Block 4 has a block working face, and block working face is located at the side that ratchet 2 deviates from parking gear 1, such as block 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 bar Into spacing effect is played, particularly limit axial direction of the closing piece 8 of rod assembly along parking gear 1 and rock.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 also 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 ratchet working face and block working face, and under non-parked state, cylindrical section 81 is stayed positioned at ratchet Between car confined planes 23 and block parking confined planes 43, the second round platform section 83 is located at the non-parking confined planes 21 of ratchet and block is non-stays Between car confined planes 41；Under parked state, the second round platform section 83 is located at ratchet parking confined planes 23 and block parking confined planes To promote ratchet 2 to turn to locking parking gear 1 between 43.

Formed by the block working face and ratchet working face, motion that can be effectively to closing piece 8 of said structure form It is oriented to, prevents occurring stuck failure during putting into gear.

1- Fig. 3 describes the operation principle of P gear halting mechanisms according to embodiments of the present invention with reference to the accompanying drawings.

When vehicle is in normally travel state, as shown in figure 1, the elasticity of roller 91 of leaf spring 9 is pressed on the non-of lobe plate 6 In parking lock groove 63, rotated with preventing lobe plate 6, the non-parking of block that the second round platform section 83 of closing piece 8 is located at block 4 is spacing Between face 41 and the non-parking contact surface of ratchet 2, the locking tooth 24 of ratchet 2 is in the position of the lock groove 14 away from parking gear 1, Spacer pin 64 is located at the locking section 25a of lock groove 14, and the locking tooth 24 that can resist ratchet 2 falls into the lock groove 14 of parking gear 1 It is interior, prevent vehicle false-lock under jounce condition from stopping.

When vehicle remains static or low-speed running state and when needing parking, executing agency 51 receives controller and sent Parking instruction, and drive lobe plate 6 to overcome by drive shaft 52 and compressed from leaf spring 9 caused by non-parking lock groove 63 reversely Moment of torsion synchronous axial system, now spacer pin 64 take the lead in leaving the locking section 25a of lock groove 14, lobe plate 6 with pull bar 7 by coordinating The pushing drawing rod assembly of connecting hole 61, and then drive the direction of closing piece 8 and elastic component 75 to block parking confined planes 43 to move, now P gear halting mechanisms have following two possible states.

State 1：If the lock groove 14 of parking gear 1 is located at 24 position of locking tooth of face ratchet 2, due to rod assembly On the initial elastic force of elasticity be more than ratchet 2 due to the resistance that the effect of torsion spring 3 compresses to closing piece 8 and hinders closing piece 8 to continue motion, So as to which elastic component 75 just can smoothly promote closing piece 8, the first round platform section 82 and then promotion ratchet 2 of closing piece 8 without second compression again Rotated to close to the direction of lock groove 14, when the second round platform section 83 of closing piece 8 moves to block parking confined planes 43 and ratchet is stayed When between car confined planes 23, synchronously, the locking tooth 24 of ratchet 2 is moved in the lock groove 14 of parking gear 1, synchronously, convex The parking lock groove 62 of wheel plate 6 turns to the position of roller 91 of leaf spring 9, roller 91 is pressed on the parking lock groove of lobe plate 6 62 bottoms, so that lobe plate 6 is maintained at parking lock as shown in Figure 3 in the power-off state for executing agency 51 (such as motor) Position.

State 2：If as shown in Fig. 2 during 24 position of locking tooth of the non-face ratchet 2 of the lock groove 14 of parking gear 1, closing piece 8 the first round platform section 82 equally promotes the locking tooth 24 of ratchet 2 close to the gear tooth portions of parking gear 1, when the locking tooth of ratchet 2 24 with after the tooth contact of parking gear 1, ratchet 2 just can not be rotated further, the first round platform section 82 and the ratchet parking of closing piece 8 limit The rounded contact at the edge of plane 23, the second round platform section 83 of closing piece 8 just can not continue to move, now because executing agency 51 does not turn The angle specified is moved, lobe plate 6 will be driven to be rotated further, elastic component 75 is gradually compressed, and turns to lobe plate 6 always When the bottom of parking lock groove 62 contacts with the roller 91 of leaf spring 9, synchronously, executing agency 51 has gone to the angle of setting and broken Electricity, because the roller 91 of leaf spring 9 compresses moment of torsion caused by lobe plate 6 more than elastic component 75 to pull bar 7 and the anti-work of lobe plate 6 With moment of torsion, so whole parking system remains to be maintained at pre- parked state as shown in Figure 2 after executing agency 51 powers off, due to bullet Property part 75 be in compressive state, if vehicle occur landslide phenomenon, wheel can drive parking gear 1 to rotate, when the lock of parking gear 1 When only groove 14 turns to 24 position of locking tooth of face ratchet 2, closing piece 8 may proceed to promote ratchet 2 under the thrust of elastic component 75 Rotate and locking tooth 24 is entered in lock groove 14, P gear halting mechanisms have just reached parked state as shown in Figure 3, so as to protect Card vehicle will not continue to come down over long distances.

It should be noted that in said system running, spacer pin 64 just begins after departing from the locking section 25a of stopper slot 25 Eventually in stopper slot 25 free segment 25b in, without with the peripheral collision of stopper slot 25, do not interfere with the motion of ratchet 2.

When vehicle launch need unblock when, after executing agency 51 receives the instruction that controller is sent, drive lobe plate 6 to The direction opposite with during parking rotates, and synchronously, lobe plate 6 drives pull bar 7 to move, and the end face limited block 74 of pull bar 7 promotes lock Block 8, the second round platform section 83 is set to withdraw between block parking confined planes 43 and ratchet parking confined planes 23, due to the second round platform section 83 Wall have small angle, required driving torque during so as to reduce unblock, the locking tooth 24 of ratchet 2 is in torsion spring 3 or lock Only the locking tooth of the two sides of groove 14 and ratchet 2 24 two have angle contacts side surfaces and the caused locking tooth 24 for making ratchet 2 The lock groove 14 of parking gear 1 is left in the presence of component away from the lock groove 14 of parking gear 1, when lobe plate 6 is rotated further Stopped operating when being contacted to the non-bottom of parking lock groove 63 with the roller 91 of leaf spring 9, spacer pin 64 synchronously moves to stopper slot 25 locking section 25a, the position of locking pawl 2, ensure that the locking tooth 24 of vehicle ratchet 2 under severe turbulence road conditions also will not It is strayed into the lock groove 14 of parking gear 1, P gear halting mechanisms return to non-parked state as shown in Figure 1.

P gear halting mechanisms according to embodiments of the present invention, simple in construction, part shape is simple, and parking reliability is high, and energy The situation for preventing vehicle ratchet 2 in transport condition from falling into the lock groove 14 of parking gear 1 and stopping vehicle false-lock occurs.

The invention also discloses a kind of vehicle.

Vehicle according to embodiments of the present invention has the P gear halting mechanisms of any of the above-described kind of embodiment.According to of the invention real The vehicle parking reliability for applying example is high.

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 to combine specific features, the knot that the embodiment or example describe Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description Point can combine in an appropriate manner in any one or more embodiments or example.

Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this The scope of invention is limited by claim and its equivalent.

Claims (16)

1. a kind of P keeps off halting mechanism, it is characterised in that including：

Housing；

Parking gear；

Ratchet, the ratchet may be pivotally mounted in the housing, and under non-parked state with the parking gear interval Open；

Block, the block are fixedly connected with the housing, and deviate from the side of the parking gear positioned at the ratchet；

Rod assembly, the rod assembly is between the ratchet and the block；

Executing agency, the executing agency are connected by lobe plate with the rod assembly, so that the rod assembly is suitable to only To the block and the ratchet to promote the pawl rotation to parking gear described in locking；Wherein

One in the lobe plate and the ratchet is provided with spacer pin, and another is provided with stopper slot, under non-parked state, The spacer pin stretches into the stopper slot to limit the pawl rotation.

2. P according to claim 1 keeps off halting mechanism, it is characterised in that the stopper slot includes locking section and free segment, Under non-parked state, the spacer pin stretches into the locking section and is bonded with the perisporium of the locking section, is departing from non-parking During state, the spacer pin turns to the free segment, and is spaced apart with the perisporium of the free segment.

3. P according to claim 2 keeps off halting mechanism, it is characterised in that the locking section is semicircle, the free segment For arc.

4. P according to claim 1 keeps off halting mechanism, it is characterised in that the stopper slot is through-hole type or blind-hole type.

5. P according to claim 1 keeps off halting mechanism, it is characterised in that rotation of the stopper slot along the lobe plate Direction extends.

6. P according to claim 1 keeps off halting mechanism, it is characterised in that at least part of the lobe plate and the spine It is stacked in the axial direction at least partially in the drive shaft of pawl, the spacer pin is located at the direction ratchet of the lobe plate Side, the stopper slot are located at the ratchet.

7. the P gear halting mechanisms according to any one of claim 1-6, it is characterised in that also include：Leaf spring, the plate Spring is fixedly connected with the housing, and the leaf spring is provided with roller, and the periphery of the lobe plate is suitable to and the roller along being provided with The parking lock groove of cooperation and non-parking lock groove.

8. P according to claim 7 keeps off halting mechanism, it is characterised in that the periphery edge of the lobe plate includes arc section, And the center of circle is located on the pivot center of the lobe plate, the parking lock groove and the non-parking lock groove are V-arrangement.

9. the P gear halting mechanisms according to any one of claim 1-6, it is characterised in that also include：Drive shaft, it is described Drive shaft is connected with executing agency's power coupling, and the lobe plate is fixedly connected with the drive shaft.

10. P according to claim 9 keeps off halting mechanism, it is characterised in that also includes：Torsion spring, the torsion spring set are located at spine Pawl pivot rotating shaft, the positive stop end of the torsion spring compress the drive shaft, and the effect end elasticity of the torsion spring compresses the ratchet, so that The ratchet is spaced apart with the parking gear under normal conditions.

11. P according to claim 10 keeps off halting mechanism, it is characterised in that the ratchet is located at the drive shaft and institute State between rod assembly.

12. the P gear halting mechanisms according to any one of claim 1-6, it is characterised in that the rod assembly includes：

Pull bar, the pull bar are connected with the lobe plate；

Closing piece, the closing piece are slidably mounted on the pull bar；

Elastic component, the elastic component elastic connection is between the pull bar and the closing piece.

13. P according to claim 12 keeps off halting mechanism, it is characterised in that the closing piece includes the cylinder being sequentially connected Section, the first round platform section, the second round platform section, the taper of the first round platform section are more than the taper of the second round platform section.

14. P according to claim 13 keeps off halting mechanism, it is characterised in that the ratchet has ratchet working face, described Ratchet working face includes the non-parking confined planes of ratchet and ratchet parking confined planes, the non-parking confined planes of ratchet to the parking The distance of gear is less than the ratchet 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 is spacing Face, the distance of the non-parking confined planes of block to the parking gear are more than the block parking confined planes to the park tooth The distance of wheel；

The closing piece is between the ratchet working face and the block working face, under non-parked state, the cylindrical section Between the ratchet parking confined planes and the block parking confined planes, the second round platform section is stayed positioned at the ratchet is non- Between car confined planes and the non-parking confined planes of the block, under parked state, the second round platform section is located at the ratchet and stayed To promote the pawl rotation to parking gear described in locking between car confined planes and the block parking confined planes.

15. P according to claim 14 keeps off halting mechanism, it is characterised in that the ratchet working face includes ratchet transition Face, the ratchet transition face are connected between the non-parking confined planes of the ratchet and the ratchet parking confined planes, the ratchet Transition face and the angle of the non-parking confined planes of the ratchet and the ratchet parking confined planes are 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 Between stating 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. a kind of vehicle, it is characterised in that there is the P gear halting mechanisms as any one of claim 1-15.