CN108278365A - Automatic transmission mechanical parking mechanism - Google Patents
Automatic transmission mechanical parking mechanism Download PDFInfo
- Publication number
- CN108278365A CN108278365A CN201810233013.1A CN201810233013A CN108278365A CN 108278365 A CN108278365 A CN 108278365A CN 201810233013 A CN201810233013 A CN 201810233013A CN 108278365 A CN108278365 A CN 108278365A
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- Prior art keywords
- parking
- pivoted arm
- push
- bogie
- pull rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 210000003781 tooth socket Anatomy 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 12
- 230000033001 locomotion Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims 1
- 238000005381 potential energy Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3408—Locking or disabling mechanisms the locking mechanism being moved by the final actuating mechanism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/38—Detents
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention relates to a kind of automatic transmission mechanical parking mechanisms,Including the circumferentially fixed parking ratchet wheel fastened in transmission shaft,One shift shaft of setting on mission case,Shift shaft one end connects firmly shift pivoted arm,The other end connects firmly a parking pivoted arm,Parking pivoted arm is L-shaped,Sector is arranged in the galianconism end of L-shaped parking pivoted arm,One elastic compression locking pin is set on mission case,The long arm end of L-shaped parking pivoted arm is hinged a parking push-pull rod,The elongated end of parking push-pull rod is inserted into the parking bogie that one is slidably matched with mission case,It is nested with a push rod compressed spring on elongated end in the one parking bogie of insertion,Push rod compressed spring one end is limited by the flange of the elongated end end of parking push-pull rod,The other end is limited by the end plate of parking bogie,The lower face of first roller and guide plate is in rolling contact,Second roller is in rolling contact with park pawl free end,It is corresponding with the free end of park pawl that mission case is equipped with a resetting apparatus.
Description
Technical field
The present invention relates to a kind of automotive transmissions, and in particular to a kind of automatic transmission mechanical parking mechanism.
Background technology
After a stoppage in order to ensure vehicle, be not in the dangerous situations such as to slide, slip by slope, need to be arranged in automatic transmission
Halting mechanism is engaged with tooth socket on parking ratchet wheel to limit transmission shaft in direction of rotation rotation come real by the blade tooth of park pawl
Existing stationary vehicle, so that it is guaranteed that the safety of car owner's life, property.Therefore halting mechanism is peace indispensable in automatic block vehicle
Full device.Referring to Fig. 6, currently, a kind of automatic transmission stopping mechanism used in the market, shift pivoted arm assembly is by shift pivoted arm
Seat and shift pivoted arm weld together composition and are fixed together with shifting shaft by rolling up pin, and parking braking spring lamination a6 is logical
It crosses fixing bolt and guide blot is fixed on mission case, component roller a6-1 is pressed on shift pivoted arm a3；Idler wheel pushes away
The component push rod a9-1 of bar assembly and the hole of shift pivoted arm coordinate, and parking guide plate is bolted on mission case,
This halting mechanism has a defect that：One, the position degree of the roller a6-1 of parking braking spring lamination a6 be difficult to ensure and
The bending angle of parking braking spring leaf is not easy to control, and part difficulty of processing is big, quality is difficult to control；And spring leaf spring force value
Decaying is very fast, and after moving repeatedly, spring force has larger reduction compared with initial value, seriously affects the shift-feel of vehicle.Two, it uses
Spring leaf carrys out each gear of locking, increases the arrangement space of entire halting mechanism, when with vehicle space layout, easily and vehicle
Related components interfere.
Invention content
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of automatic transmission mechanical parking mechanism, it
Structure size is small, control is simple, is designed and arranged convenient for halting mechanism, moreover it is possible to improve the comfort level for promoting parking operation.
The object of the present invention is achieved like this：A kind of automatic transmission mechanical parking mechanism, including it is circumferentially fixed
The parking ratchet wheel that transmission shaft is fastened, and the park pawl that is hinged on mission case, on mission case setting one change
Shaft is kept off, described shift shaft one end connects firmly shift pivoted arm, and the other end connects firmly a parking pivoted arm, and the parking pivoted arm is L-shaped, institute
State the galianconism end setting sector of L-shaped parking pivoted arm, the exterior arc surface of sector is arranged waveform tooth socket, on the mission case
The radial direction that the elastic compression locking pin that one is axially supported by compression helical spring corresponds to sector is set, for locking L-shaped parking
The long arm end of pivoted arm, the L-shaped parking pivoted arm is hinged a parking push-pull rod, and the elongated end of the parking push-pull rod is inserted into one and change
In the parking bogie of fast device box body-sliding cooperation, push rod compression bullet is nested on the elongated end in the one parking bogie of insertion
Spring, push rod compressed spring one end are limited by the flange of the elongated end end of parking push-pull rod, and the other end is by parking bogie
End plate limit, set on the parking bogie there are two roller, wherein the first roller be fixed on leading on mission case
It is in rolling contact to the lower face of plate, the second roller is in rolling contact with park pawl free end, and the mission case is equipped with one
Resetting apparatus is corresponding with the free end of park pawl.
The lower part of the free end of the park pawl is equipped with the blade tooth extended downwardly, and the top of the free end, which is equipped with, supplies first
Roller rolls drive the slope of the free end motion of park pawl, the low side of the slope to correspond to the hinged end of park pawl, institute
State slope include an initial ramp face, the transition bench stage, back segment slope, the initial ramp face by the transition bench stage to
Back segment slope rounding off.
The parking push-pull rod, which is located on the shaft on the outside of parking bogie, is arranged axial limiting protrusion.
The parking bogie includes a U-shaped left plate, and the flanging of the U-shaped left plate constitutes the end of parking bogie
Plate, two flanging of U-shaped left plate are fixedly connected with the side plate face of right plate, and an extending direction is arranged on the right plate
With the sliding strip-shaped hole of parking push-pull rod axis parallel, setting spacer pin slides with sliding strip-shaped hole and matches on mission case
It closes.
An open slot is arranged in the U-shaped left plate on the flanging of parking pivoted arm, and it is wear-resisting to match unification in the open slot
The annular groove of axle sleeve, the outer wall of the anti-wear sleeve is connected in open slot, endoporus and the parking push-pull rod of the anti-wear sleeve
It is slidably matched.
On the circumferentially fixed differential mechanism rotating shell in speed changer shafting of the parking ratchet wheel.
The resetting apparatus includes that a parking return spring pin, the parking return is arranged in the free end of the park pawl
Parking return spring, parking gasket are nested on spring catch.
The elastic compression locking pin includes steel ball seat, and one is supported in the steel ball seat and rotatably locks steel ball, described
One locking pin mount of setting in transmission case body, the axis hole that the locking pin mount setting one is radially extended along sector,
The steel ball seat is slidably fitted in axis hole, one compression helical spring of installation in the axis hole, and the two of the compression helical spring
End is born against in axis hole bottom and steel ball seat bottom.
Bending bar portion, the bending bar portion and parking is arranged in the overhanging end that parking bogie is stretched out outside the parking push-pull rod
The axial line of push-pull rod is vertical, and two convex blocks are integrally formed in the bending bar portion, and shaft is to be slidably matched between two convex block
The long arm end of section, the L-shaped parking pivoted arm is hinged by hinge hole and the section that is slidably matched.
Shift shaft one end setting outer end threaded portion, intermediate flat fixed part, the shift pivoted arm pass through fixing end
The mounting hole coincideing with intermediate flat fixed part being arranged is nested on intermediate flat fixed part, and the outer end threaded portion is with unification
Locking nut will connect firmly shift pivoted arm fastening.
Using the above scheme, one shift shaft of setting, described shift shaft one end connect firmly shift pivoted arm on mission case,
The other end connects firmly a parking pivoted arm, and the parking pivoted arm is L-shaped, and sector is arranged in the galianconism end of the L-shaped parking pivoted arm, fan-shaped
Waveform tooth socket is arranged in the exterior arc surface of tooth, and one is arranged on the mission case and is pressed by the elasticity that compression helical spring axially supports
Contracting locking pin corresponds to the radial direction of sector, and for locking L-shaped parking pivoted arm, the long arm end hinged one of the L-shaped parking pivoted arm is stayed
The elongated end of vehicle push-pull rod, the parking push-pull rod is inserted into the parking bogie that one is slidably matched with mission case, this is inserted
Enter and be nested with a push rod compressed spring on the elongated end in a parking bogie, push rod compressed spring one end is by parking push-pull rod
Elongated end end flange limit, the other end limits by the end plate of parking bogie, set on the parking bogie there are two
Roller, wherein the lower face of the first roller and the guide plate being fixed on mission case is in rolling contact, the second roller and parking
Pawl free end is in rolling contact, and it is corresponding with the free end of park pawl that the mission case is equipped with a resetting apparatus.Shift
Pivoted arm rotates, and realizes the rotation of shift shaft, and shift shaft rotation has driven the rotation of parking pivoted arm, when sector rotates gram
Take the locking power that elastic compression locking pin is applied to sector, elastic compression locking pin and waveform after the rotateing in place of shaft of shifting gears
Tooth socket fit in tooth socket fit makes parking pivoted arm to reliable, effective locking, avoids the hair for phenomenon of trip stopping to greatest extent
It is raw, while normal gear change operation is not interfered with again, gear change operation is convenient, laborsaving, rapid.Compare spring leaf, compresses spiral shell
The relationship for revolving acting force of the spring and displacement is very sensitive；Manufacture is easier；Structure is compact；Energy interest rate is high.It avoids
Spring leaf spring force degradation is very fast, and after moving repeatedly, spring force has larger reduction compared with initial value, seriously affects the shift of vehicle
The defects of feel, is conducive to the arrangement space for shortening halting mechanism, and structure is compacter, from the point of view of entire transmission assembly, drop
The low height of speed changer, improves flexibility of the speed changer in vehicle space layout.The rotation of parking pivoted arm long arm end is drawn
Parking push-pull rod is moved, parking push-pull rod is axially moved, and the flange of parking push-pull rod compresses push rod compressed spring, and push rod compresses bullet
Spring compresses afterwards by thrust parking bogie, and parking bogie passes to the first roller, the second roller, the second roller and parking spine
Pawl free end is in rolling contact, and drives the free end motion of park pawl, is rolling friction, machinery between the second roller and park pawl
Lose small, abrasion smaller, park pawl, parking push-pull rod service life, to extend the service life of entire halting mechanism.It adopts
It is also allowed for transmitting the larger driving force for driving the free end motion of park pawl with rolling friction, to increase for driving
The parking power of blade tooth and tooth socket fit improves parking reliability.When ratchet blade tooth acts on the tooth top of ratchet, push rod compresses bullet
One end stroke that spring acts on parking push-pull rod is hung with normal as when parking is kept off, and acts on the row of parking bogie one end
Journey is less than the stroke in the case of blade tooth is directly engaged with tooth socket on parking ratchet wheel, and push rod compressed spring internal reservoir is compared with blade tooth at this time
Excess resilient potential energy in the case of directly being engaged with tooth socket on parking ratchet wheel, after blade tooth cunning streaks ratchet top, extra elastic potential energy
Release drives the second roller to move forward, and then park pawl is driven to rotate, and blade tooth is made mutually to be nibbled with tooth socket on parking ratchet wheel
It closes, completes the locking of parking ratchet wheel.Push rod compressed spring, which is arranged, can absorb the vibrations of entire mechanism, moreover it is possible to make blade tooth and tooth socket
It is lasting to be bonded and then reduce noise, improve operating comfort.Described second be fixed under the guide plate on mission case
It holds guide face contacts and can be rolled along the guide surface of guide plate, guide plate is used for the anti-work that carrier roller is applied by park pawl
Firmly, roller laterally offset is prevented.After setting resetting apparatus can make the second roller withdraw park pawl, park pawl is made to rotate
Return simultaneously makes blade tooth be withdrawn from from the tooth socket being meshed.It using the present invention, reduces design difficulty and reduces parts, save
It is space, compact-sized.
The lower part of the free end of the park pawl is equipped with the blade tooth extended downwardly, and the top of the free end is equipped with for roller
The slope for driving the free end motion of park pawl is rolled, the low side of the slope corresponds to the hinged end of park pawl, described oblique
Slope surface includes an initial ramp face, transition bench stage, back segment slope, and the initial ramp face passes through transition bench stage section backward
Slope rounding off.Second roller rolls cooperation in slope can also play reinforcement effect, and gear shifting force can be made smaller, the second rolling
Son is not inserted into tooth socket, park pawl rotary resistance suffered when rotating in initial ramp face sliding phase, the blade tooth of park pawl
It is smaller, by be arranged the transition bench stage can in the case that parking bogie move small distance can make park pawl overcome compared with
In the case of the resistance in small turning circumference direction and make blade tooth that there is larger stroke；Second roller crosses the transition bench stage rear
When section slope sliding, the blade tooth of park pawl can generate larger locking power under smaller stroke in turning circumference direction,
The locking power is conducive to blade tooth and is inserted into tooth socket, since in a parking operation, the decrement of push rod compressed spring is certain, storage
Elastic potential energy it is certain, using this structure also can by more elastic potential energy distribute for blade tooth be inserted into tooth socket locking move
Make, improves the reliability of parking.
The parking push-pull rod, which is located on the shaft on the outside of parking bogie, is arranged axial limiting protrusion, and limit protrusion is arranged
It can be compressed to carrying out pre- push rod compressed spring, the push rod compressed spring after precommpression can be driven bigger in relatively short stroke
Axial thrust, the advantageous arrangement space for saving total.
The parking bogie includes a U-shaped left plate, and the flanging of the U-shaped left plate constitutes the end of parking bogie
Plate, two flanging of U-shaped left plate are fixedly connected with the side plate face of right plate, and an extending direction is arranged on the right plate
With the sliding strip-shaped hole of parking push-pull rod axis parallel, setting spacer pin slides with sliding strip-shaped hole and matches on mission case
It closes.
An open slot is arranged in the U-shaped left plate on the flanging of parking pivoted arm, and it is wear-resisting to match unification in the open slot
The annular groove of axle sleeve, the outer wall of the anti-wear sleeve is connected in open slot, endoporus and the parking push-pull rod of the anti-wear sleeve
It is slidably matched, easy to disassemble using the above structure, assembly, setting anti-wear sleeve can be to increasing to parking push-pull rod spindle guide to essence
Degree, while can also improve the service life of parking push-pull rod.
The circumferentially fixed differential mechanism rotating shell in speed changer shafting of the parking ratchet wheel, parking ratchet wheel are installed on differential
It on device shell, solves parking ratchet wheel and is installed on input shaft, slided on input shaft under operating mode mal-condition because stress is excessive
Turn, is loosened with parking ratchet wheel, the parking Problem of Failure be easy to causeing improves reliability.
The resetting apparatus includes that a parking return spring pin, the parking return is arranged in the free end of the park pawl
Parking return spring, parking gasket are nested on spring catch, parking gasket is supported on mission case, and park pawl swings compression
Return spring, stores elastic potential energy on return spring, and when reset, the elastic potential energy of return spring release storage makes park pawl answer
Position.
The elastic compression locking pin includes the locking pin mount being arranged in transmission case body, the locking pin installation
The axis hole that seat setting one is radially extended along sector, the axis hole is interior to install a compression helical spring, and the interior sliding of the axis hole is matched
Unify steel ball seat, the both ends of the compression helical spring are born against on axis hole bottom and steel ball seat bottom, the steel ball seat
Bearing one rotatably locks steel ball, and using this part difficulty of processing, small, quality facilitates control；Compression helical spring is transported repeatedly
Dynamic, its spring force is constant, ensure that the shift-feel of vehicle.
Bending bar portion, the bending bar portion and parking is arranged in the overhanging end that parking bogie is stretched out outside the parking push-pull rod
The axial line of push-pull rod is vertical, and two convex blocks are integrally formed in the bending bar portion, and shaft is to be slidably matched between two convex block
Section sets hinge hole with the long arm end of the L-shaped parking pivoted arm, and hinge hole coincide with shaft cross-sectional profiles at convex block, the L-shaped
The long arm end of parking pivoted arm is inserted in from bending one end of the rod, and is slidably matched with the section that is slidably matched, when assembly first by hinge hole with
It is axially pushed along bending bar portion after cross-sectional shape coincide at convex block, then rotates parking pivoted arm, assembly is completed, using above-mentioned knot
Structure can improve efficiency of assembling.
Using foregoing invention, its structure size is small, control is simple, is designed and arranged convenient for halting mechanism, moreover it is possible to carry
Rise the comfort level of parking operation.
The invention will be further described in the following with reference to the drawings and specific embodiments.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the B direction views in Fig. 1；
Fig. 3 is A-A sectional views in Fig. 2；
Fig. 4 is the structural schematic diagram of elastic compression locking pin；
Fig. 5 is parking ratchet wheel fixed structure schematic diagram；
Fig. 6 is the structural schematic diagram of existing halting mechanism.
In attached drawing, 1 is left plate, and 2 be shift shaft, and 4 be parking push-pull rod, and 6 be parking gasket, and 7 is convex for axial limiting
It rises, 8 be parking bogie, and 9 be right plate, and 10 be parking return spring, and 11 be slope, and 12 be compression helical spring, and 33 are
Push rod compressed spring, 13 be locking pin mount, and 14 be locking steel ball, and 15 be parking pivoted arm, and 18 be shift pivoted arm, and 21 be wear-resisting
Axle sleeve, 22 be steel ball seat, and 24 be galianconism end, and 26 be guide plate, and 27 be elastic compression locking pin, and 28 be parking return spring pin,
29 be waveform tooth socket, and 4e is convex block, and 30 be mission case, and 31 be parking ratchet wheel, and 32 be spacer pin, and 11a is initial ramp face,
11b is the transition bench stage, and 11c is back segment slope, and 2c is outer end threaded portion, and 2d is intermediate flat fixed part, and 4a is flange,
4b is bending bar portion, and 8a is the first roller, and 8b is the second roller, and a is park pawl, and b is open slot, and c is sliding strip-shaped hole.
Specific implementation mode
With reference to attached drawing, specific embodiments of the present invention are will be described in.
Referring to Fig. 1 to Fig. 5, a kind of embodiment of automatic transmission mechanical parking mechanism, automatic transmission is mechanically stayed
Mechanism of car, including the circumferentially fixed parking ratchet wheel 31 fastened in transmission shaft, and the parking that is hinged on mission case 30
Pawl a, automatic transmission mechanical parking mechanism, including the circumferentially fixed parking ratchet wheel 31 fastened in transmission shaft, and hinge
The park pawl a being connected on mission case 30.Preferably, the circumferentially fixed difference in speed changer shafting of the parking ratchet wheel 31
Fast device rotates shell 34, and parking ratchet wheel 31 is installed on differential casing, solves parking ratchet wheel 31 and be installed on input shaft,
It trackslips on input shaft because stress is excessive under operating mode mal-condition, is loosened with parking ratchet wheel 31, the parking failure be easy to causeing
Problem improves reliability.The lower part of the free end of the park pawl a is equipped with the blade tooth extended downwardly.Mission case 30
One shift shaft 2 of upper setting, 2 one end of shift shaft setting outer end threaded portion 2c, intermediate flat fixed part 2d, a shift turn
The mounting hole coincideing with intermediate flat fixed part 2d that arm 18 is arranged by fixing end is nested on intermediate flat fixed part, described
Outer end threaded portion 2c will connect firmly shift pivoted arm 18 with unification locking nut and fasten, and realize that the shift shaft 2 removably connects firmly.
2 other end of shift shaft connects firmly a parking pivoted arm 15, and the parking pivoted arm 15 is L-shaped, the L-shaped parking pivoted arm 15 it is short
Sector is arranged in arm end 24, and waveform tooth socket 29 is arranged in the exterior arc surface of sector, and setting one is by pressing on the mission case 30
The elastic compression locking pin 27 that contracting helical spring axially supports corresponds to the radial direction of sector, for locking L-shaped parking pivoted arm 15.Institute
It includes the locking pin mount 13 being arranged in mission case 30, the locking pin mount 13 to state elastic compression locking pin 27
One axis hole radially extended along sector is set, a compression helical spring 12 is installed in the axis hole, slides and matches in the axis hole
Unify steel ball seat 22, the both ends of the compression helical spring 12 are born against in 22 bottom of axis hole bottom and steel ball seat, the steel
Bearing one rotatably locks steel ball 14 on ball seat 22, and using this part difficulty of processing, small, quality facilitates control；Compress spiral
Spring 12 moves repeatedly, its spring force is constant, ensure that the shift-feel of vehicle.The long arm end of the L-shaped parking pivoted arm 15 is hinged
The elongated end of one parking push-pull rod 4, the parking push-pull rod 4 is inserted into a parking bogie being slidably matched with mission case 30
In 8, the parking bogie 8 includes a U-shaped left plate 1, and the flanging of the U-shaped left plate 1 constitutes the end of parking bogie 8
Plate, 1 liang of flanging of the U-shaped left plate are fixedly connected with the side plate face of right plate 9, and one is arranged on the right plate 9 and extends
The sliding strip-shaped hole c in direction and 4 axis parallel of parking push-pull rod, setting spacer pin 32 and sliding bar shaped on mission case 30
Hole c slide cooperation.Preferably, an open slot b, the opening is arranged in the U-shaped left plate 1 on the flanging of parking pivoted arm 15
It is connected in open slot b with unification anti-wear sleeve 21, the annular groove of the outer wall of the anti-wear sleeve 21 in slot b, the wear-resisting shaft
The endoporus of set 21 is slidably matched with parking push-pull rod 4, and easy to disassemble using the above structure, assembly, setting anti-wear sleeve 21 can
To increasing to 4 direction of axis line guiding accuracy of parking push-pull rod, while it can also improve the service life of parking push-pull rod 4.It is preferred that
Ground, the parking push-pull rod 4 stretch out overhanging end setting bending the bar portion 4b, the bending bar portion 4b of parking bogie 8 and stay outside
The axial line of vehicle push-pull rod 4 is vertical, and shaft is between two convex block 4e, the two convex blocks 4e are integrally formed on the bending bar portion 4b
Be slidably matched section, and hinge hole, hinge hole and shaft cross-sectional profiles at convex block 4e are set with the long arm end of the L-shaped parking pivoted arm 15
It coincide, the long arm end of the L-shaped parking pivoted arm 15 is inserted in from the one end bending bar portion 4b, and is slidably matched with the section that is slidably matched, dress
Timing axially pushes after first cross-sectional shape at hinge hole and convex block 4e coincide along bending bar portion 4b, then rotates parking pivoted arm
15, assembly is completed, production cost can be saved using the above structure, moreover it is possible to improve efficiency of assembling.Parking push-pull rod 4 is inserted into one and stays
A push rod compressed spring 33 is nested on elongated end in vehicle bogie 8, described 33 one end of push rod compressed spring is by parking push-pull rod 4
Elongated end end flange 4a limit, the other end limits by the end plate of parking bogie 8, and the parking bogie 8 is equipped with
Two rollers, wherein the lower face of the first roller 8a and the guide plate 26 being fixed on mission case 30 are in rolling contact, second
The free ends roller 8b and park pawl a are in rolling contact.The top of the free ends the park pawl a can be arranged to drive for roller rolls
The slope 11 of the slope 11 of the free end motions of park pawl a, the free ends the second roller 8b and park pawl a is in rolling contact,
The low side of the slope 11 corresponds to the hinged end of park pawl a.Preferably, the slope 11 include an initial ramp face 11a,
Transition bench stage 11b, back segment slope 11c, the initial ramp face 11a are by transition bench stage 11b to back segment slope 11c
Rounding off.Second roller 8b rolls cooperation in slope 11 can also play reinforcement effect, gear shifting force can be made smaller, the second roller
8b is not inserted into tooth socket, rotation suffered when rotating park pawl a in initial ramp face 11a sliding phases, the blade tooth of park pawl a
Resistance is smaller, can make parking spine in the movement small distance of parking bogie 8 by the way that transition bench stage 11b is arranged
Pawl a overcomes in the case of the resistance in smaller turning circumference direction and blade tooth is made to have larger stroke；Second roller 8b was crossed
Step section 11b is crossed when back segment slope 11c is slided, the blade tooth of park pawl a can be under smaller stroke in turning circumference side
To larger locking power is generated, which is conducive to blade tooth and is inserted into tooth socket, since in a parking operation, push rod compresses bullet
The decrement of spring 33 is certain, and the elastic potential energy of storage is certain, can also distribute more elastic potential energy and be used for using this structure
Blade tooth is inserted into the locking action of tooth socket, improves the reliability of parking.The mission case 30 is equipped with a resetting apparatus and stays
The free end of vehicle pawl a corresponds to.The resetting apparatus includes that a parking return spring pin is arranged in the free end of the park pawl a
28, parking return spring 10, parking gasket 6 are nested on the parking return spring pin 28, and parking gasket 6 is supported on transmission case
On body 30, park pawl a swings compression retracteding position spring, stores elastic potential energy on return spring, when reset, return spring release storage
The elastic potential energy deposited makes park pawl a reset.Preferably, the parking push-pull rod 4 is located on the shaft in 8 outside of parking bogie
Axial limiting protrusion 7 is set, and setting limit protrusion can be compressed to carrying out pre- push rod compressed spring 33, the push rod pressure after precommpression
Contracting spring 33 can be driven the axial thrust of bigger in relatively short stroke, the advantageous arrangement space for saving total.
When carrying out parking using the above scheme, shift pivoted arm rotation realizes the rotation of shift shaft, shift shaft rotation
Driving the rotation of parking pivoted arm 15, sector overcomes elastic compression locking pin 27 to be applied to the locking power of sector when rotating,
Elastic compression locking pin 27 is used for parking pivoted arm 15 to reliable, effective locking after shift the rotateing in place of shaft.Parking turns
The rotation of 15 long arm end of arm has pulled parking push-pull rod 4, parking push-pull rod 4 to be axially moved, the flange 4a pressures of parking push-pull rod 4
Contracting push rod compressed spring 33, push rod compressed spring 33 are compressed afterwards by thrust parking bogie 8, and parking bogie 8 passes to the
One roller 8a, the second free ends roller 8b, the second roller 8b and park pawl a are in rolling contact, and the free ends park pawl a is driven to be transported
Dynamic, blade tooth is directly engaged with tooth socket on parking ratchet wheel 31.When ratchet blade tooth acts on the tooth top of ratchet, push rod compressed spring 33
One end stroke for acting on parking push-pull rod 4 is hung with normal as when parking is kept off, and acts on the row of 8 one end of parking bogie
Journey be less than blade tooth directly engaged with tooth socket on parking ratchet wheel 31 in the case of stroke, at this time 33 internal reservoir of push rod compressed spring compared with
Excess resilient potential energy in the case of blade tooth is directly engaged with tooth socket on parking ratchet wheel 31, after blade tooth cunning streaks ratchet top, extra bullet
Property potential energy release, drive the second roller 8b to move forward, and then park pawl a is driven to rotate, make blade tooth on parking ratchet wheel 31
Tooth socket is intermeshed, and completes the locking of parking ratchet wheel 31.It using the present invention, reduces design difficulty and reduces parts, save
About space, compact-sized.
Using foregoing invention, its structure size is small, control is simple, is designed and arranged convenient for halting mechanism, moreover it is possible to carry
Rise the comfort level of parking operation.
Claims (10)
1. a kind of automatic transmission mechanical parking mechanism, including the circumferentially fixed parking ratchet wheel fastened in transmission shaft（31）,
And it is hinged on mission case（30）On park pawl（a）, it is characterised in that：Mission case（30）One shift of upper setting
Shaft（2）, the shift shaft（2）One end connects firmly shift pivoted arm（18）, the other end connects firmly a parking pivoted arm（15）, the parking
Pivoted arm（15）It is L-shaped, the L-shaped parking pivoted arm（15）Galianconism end（24）Sector, the exterior arc surface setting of sector are set
Waveform tooth socket（29）, the mission case（30）The elastic compression locking pin that upper setting one is axially supported by compression helical spring
（27）The radial direction of corresponding sector, for locking L-shaped parking pivoted arm（15）, the L-shaped parking pivoted arm（15）Long arm end it is hinged
One parking push-pull rod（4）, the parking push-pull rod（4）Elongated end be inserted into one and mission case（30）The parking being slidably matched
Bogie（8）In, the one parking bogie of insertion（8）In elongated end on be nested with a push rod compressed spring（33）, the push rod
Compressed spring（33）One end is by parking push-pull rod（4）Elongated end end flange（4a）Limit, the other end is by parking bogie
（8）End plate limit, the parking bogie（8）On set there are two roller, wherein the first roller（8a）Be fixed on speed changer
Babinet（30）On guide plate（26）Lower face be in rolling contact, the second roller（8b）With park pawl（a）Free end rolls and connects
It touches, the mission case（30）It is equipped with a resetting apparatus and park pawl（a）Free end correspond to.
2. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The park pawl（a）
The lower part of free end be equipped with the blade tooth that extends downwardly, the top of the free end, which is equipped with, supplies the first roller（8a）Rolling drives parking
Pawl（a）The slope of free end motion（11）, the slope（11）Low side correspond to park pawl（a）Hinged end, it is described
Slope（11）Including an initial ramp face（11a）, the transition bench stage（11b）, back segment slope（11c）, the initial ramp
Face（11a）Pass through the transition bench stage（11b）To back segment slope（11c）Rounding off.
3. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The parking push-pull rod
（4）Positioned at parking bogie（8）Axial limiting protrusion is set on the shaft in outside（7）.
4. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The parking bogie
（8）Including a U-shaped left plate（1）, the U-shaped left plate（1）Flanging constitute parking bogie（8）End plate, the U-shaped is left
Side plate（1）Two flangings are and right plate（9）Side plate face be fixedly connected, the right plate（9）One extending direction of upper setting with
Parking push-pull rod（4）The sliding strip-shaped hole of axis parallel（c）, mission case（30）Upper setting spacer pin（32）With slider bar
Shape hole（c）It is slidably matched.
5. automatic transmission mechanical parking according to claim 4 mechanism, it is characterised in that：The U-shaped left plate（1）
Close to parking pivoted arm（15）Flanging on an open slot is set（b）, the open slot（b）It is interior to match unification anti-wear sleeve（21）, institute
State anti-wear sleeve（21）The annular groove of outer wall be connected to open slot（b）It is interior, the anti-wear sleeve（21）Endoporus pushed away with parking
Pull rod（4）It is slidably matched.
6. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The parking ratchet wheel（31）
The circumferentially fixed differential mechanism rotating shell in speed changer shafting（34）On.
7. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The resetting apparatus includes
The park pawl（a）Free end be arranged a parking return spring pin（28）, the parking return spring pin（28）On be nested with
Parking return spring（10）, parking gasket（6）.
8. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The elastic compression locking
Pin（27）Including steel ball seat（22）, the steel ball seat（22）Upper bearing one rotatably locks steel ball（14）, the transmission case
Body（30）One locking pin mount of interior setting（13）, the locking pin mount（13）One axis radially extended along sector is set
Hole, the steel ball seat（22）It is slidably fitted in axis hole, a compression helical spring is installed in the axis hole（12）, the compression spiral shell
Revolve spring（12）Both ends bear against in axis hole bottom and steel ball seat（22）Bottom.
9. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The parking push-pull rod
（4）Outer stretching parking bogie（8）Overhanging end be arranged bending bar portion（4b）, the bending bar portion（4b）With parking push-pull rod
（4）Axial line it is vertical, the bending bar portion（4b）Two convex blocks of upper integrated molding（4e）, two convex block（4e）Between shaft be
Be slidably matched section, the L-shaped parking pivoted arm（15）Long arm end it is hinged by hinge hole and the section that is slidably matched.
10. automatic transmission mechanical parking according to claim 1 mechanism, it is characterised in that：The shift shaft（2）
Outer end threaded portion is arranged in one end（2c）, intermediate flat fixed part（2d）, the shift pivoted arm（18）By fixing end be arranged with
Intermediate flat fixed part（2d）Identical mounting hole is nested in intermediate flat fixed part（2d）On, the outer end threaded portion（2c）Match
Unification locking nut will connect firmly shift pivoted arm（18）Fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233013.1A CN108278365A (en) | 2018-03-21 | 2018-03-21 | Automatic transmission mechanical parking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233013.1A CN108278365A (en) | 2018-03-21 | 2018-03-21 | Automatic transmission mechanical parking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108278365A true CN108278365A (en) | 2018-07-13 |
Family
ID=62810207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810233013.1A Pending CN108278365A (en) | 2018-03-21 | 2018-03-21 | Automatic transmission mechanical parking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278365A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022641A (en) * | 2020-01-03 | 2020-04-17 | 万向集团公司 | Parking mechanism for transmission and parking method thereof |
| WO2020086984A1 (en) * | 2018-10-25 | 2020-04-30 | Linamar Corporation | Park lock roller assembly |
| CN111623117A (en) * | 2020-07-08 | 2020-09-04 | 浙江双菱亿鑫动力科技有限公司 | Integrated parking system |
| US11371608B2 (en) | 2019-06-03 | 2022-06-28 | Volvo Car Corporation | Park lock arrangement |
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| WO2020086984A1 (en) * | 2018-10-25 | 2020-04-30 | Linamar Corporation | Park lock roller assembly |
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