CN209309301U - A kind of automobile transmission halting mechanism - Google Patents
A kind of automobile transmission halting mechanism Download PDFInfo
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- CN209309301U CN209309301U CN201821466915.1U CN201821466915U CN209309301U CN 209309301 U CN209309301 U CN 209309301U CN 201821466915 U CN201821466915 U CN 201821466915U CN 209309301 U CN209309301 U CN 209309301U
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Abstract
The utility model discloses a kind of automobile transmission halting mechanisms, it is related to automotive transmission technical field, including parking gear, park pawl, pin shaft, return pin, the first fixed pin, shaft, parking cam, torsion return spring, flexibly positioned seat, the first ball bearing, worm sector, worm screw, the second ball bearing and the second fixed pin；Worm screw is installed between first ball bearing and the second ball bearing, worm screw is used to receive the driving of parking driving motor, the utility model provides that a kind of compact-sized, high reduction ratio, torque increase capacity be big, precision is easy to guarantee and realize, in the application for realizing identical parking function demand, and the smaller driving motor of power can be used, be easily achieved finished vehicle electronic parking function (electronics P gear) demand.It is simplified since structure is opposite, number of parts is few, there is corresponding cost advantage.Replace worm couple and the adjustment of shaft simple designs by using parking swing arm, can also realize speed changer manual parking function.
Description
Technical field
The utility model relates to automotive transmission technical field, specifically a kind of automobile transmission halting mechanism.
Background technique
Firstly, being gradually widely used since Automotive parking mechanism is born from automatic gearbox, have become so far certainly
One of the mechanism of the auxiliary security parking of dynamic speed changer indispensability.It is applied to the halting mechanism of automatic transmission at present, it is various informative,
Mechanism design is universal complicated, and craftsmanship is poor, and therefore, the cost is relatively high, and precision and quality guarantees difficult.
Secondly, new-energy automobile, such as electric car mixes as the whole world steps up motor vehicle emission requirement and standard
The trend and mainstream of development of automobile will be become by closing power vehicle and intelligent automobile, and corresponding new-energy automobile speed changer will become
Develop in few gearization (such as two gear or one gear), light-weight, small in size and direction at low cost, for this purpose, meeting functional requirement
Under the premise of, need to simplify itself structure, space and weight as far as possible, each components multipotency as far as possible, it is highly integrated and from
Dynamicization.
Therefore need to design it is a be suitable for motor direct-drive it is automatic locking and unlock or by increase and decrease part answer
For manual locking or the vehicular transmission of unlock, it can need to realize electronics P gear or manually P gear according to vehicle.
Utility model content
The purpose of the utility model is to provide a kind of new-energy automobile speed changer or traditional vehicle automatic transmission parkings
Mechanism, design of part simplifies, is light-weight, is small in size, function is reliable, at low cost, to solve the problems, such as above-mentioned background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of automobile transmission halting mechanism, including parking gear, park pawl, pin shaft, return pin, the first fixation
Pin, shaft, parking cam, torsion return spring, flexibly positioned seat, the first ball bearing, worm sector, worm screw, the second ball bearing
With the second fixed pin；Worm screw is installed, worm screw is for receiving parking driving motor between first ball bearing and the second ball bearing
Driving, worm screw engages with worm sector, and worm sector is equipped with fixed pin holes, torsionspring work nest and auxiliary positioning slot,
Flexibly positioned seat is installed on shell and cooperates with the auxiliary positioning slot on worm sector；Worm sector is by the second fixed pin and turns
Axis connection, both ends of the shaft be respectively equipped with the first bearing diameter of axle and second bearing the diameter of axle, respectively with first axle bearing sleeve and second bearing
Clearance fit is covered, close-fitting is installed on shell respectively for first axle bearing sleeve and second bearing set, and shaft passes through the first fixed pin and stays
The connection of vehicle cam, while a torsion return spring with pretightning force, parking cam being installed between worm sector and parking cam
It is equipped with torsion return spring works hole, park pawl return guide hole, parking working profile；Parking cam is worked wide by parking
Face is engaged with park pawl working profile, while being installed on the return pin in park pawl and the park pawl on parking cam time
Position guide hole cooperation, parking cam empty set is on the park tooth and parking gear on the pin shaft for being fixedly installed in shell, park pawl
Tooth socket engagement, parking gear realizes variator gear and axis by splined hole and variator gear axis connection
The locking of system or unlock, sleeve mechanism are installed on the sealing after shell, mainly pass through the first oil sealing being mounted on shell and snail
Oil sealing diameter of axle cooperation on bar, the second oil sealing cooperate to realize with the shaft oil sealing diameter of axle.
The parking gear is equipped with tooth socket and use for parking lock as a further solution of the present invention,
In the splined hole for being mounted on transmission gear shaft.
The park pawl as a further solution of the present invention, is equipped with pin shaft hole for installing limit, work
Profile surface, the functional parts such as return pin hole and park tooth, the specific size at each position, size and profile surface shape can be according to actual uses
Occasion or needs are designed adjustment.
The return pin as a further solution of the present invention, the park pawl return guide hole with parking cam
Cooperation, size and length will be designed according to practical application or needs, when being mainly used for park pawl parking unlock
Return.
First fixed pin as a further solution of the present invention, size and length will be according to actually answering
It with occasion or needs to be designed, close-fitting is installed on the first fixed pin holes in shaft, for transmitting parking driving force, and passes through
Cooperate with the kidney slot on parking cam, to limit the slewing area of parking cam.
The pivot design has a flat for installing parking angular position as a further solution of the present invention,
Sensor, the first oil sealing diameter of axle cooperate with the second oil sealing for sealing, and the first bearing diameter of axle and first bearing cover clearance fit, the
The two bearing diameters of axle and second bearing set gap fit clearance cooperation, to ensure that shaft can be freely rotated and wearability, first is solid
Fixed pin hole installs the first fixed pin for close-fitting, and the second fixed pin holes install the second fixed pin, specific size specification for close-fitting
It can adjust according to the actual application.
The parking cam as a further solution of the present invention, design have the first mounting hole, and kidney slot is turned round
A spring works hole, parking working profile and park pawl return guide hole are gone back to, specific size and profile will be according to practical applications
Occasion needs to carry out appropriate adjustment.
The torsion return spring as a further solution of the present invention, in shaft, both ends are set empty set respectively
It can be adjusted according to the actual application in respect of work or fixed the first pin and the second pin, specific size specification.
The worm sector as a further solution of the present invention, design have worm-gear toothing, the second mounting hole, auxiliary
Help locating slot, torsionspring work nest and fixed pin holes, specific size, worm gear parameter and profile will according to practical application or
It needs to carry out appropriate adjustment.
The worm screw as a further solution of the present invention, design have a word square groove for receiving parking motor
Torque and revolving speed, the second oil sealing diameter of axle are used to seal, first diameter of axle is used to support, worm tooth is for driving worm sector, second
For supporting, specific size, worm screw parameter according to practical application or will need to carry out appropriate adjustment the diameter of axle.
The first axle bearing sleeve and second bearing set as a further solution of the present invention, are fixedly mounted on change
On fast device shell, with shaft clearance fit, first axle bearing sleeve and second bearing are arranged in respect of flange face, axial for rotating axis component
Limit.
Compared with prior art, the utility model has the beneficial effects that
1, this halting mechanism uses worm couple to carry out deceleration torque increase to parking driving motor, avoids using multiple groups
Gear pair deceleration torque increase, simplifies structure more, and material consumption is less；
2, worm couple is directly mounted at case of transmission, the space of speed changer can be made full use of, conveniently adapted to
Different vehicle mounting arrangements need, and compared with worm couple or gear pair are installed on the scheme of motor, reduce speed change
The plug-in quality of device assembly, keeps structure more compact；
3, shaft is installed on using parking cam, and drives the scheme of halting mechanism locking or unlock by shaft, tied
Structure is simple and compact, and part manufacturing precision is easy to guarantee and realize, parking lock or unlock are relatively reliable；
4, the utility model provides that a kind of compact-sized, high reduction ratio, torque increase capacity be big, precision is easy to guarantee and real
It is existing, in the application for realizing identical parking function demand, the smaller driving motor of power can be used, be easily achieved finished vehicle electronic and stay
Vehicle function (electronics P gear) demand.It is simplified since structure is opposite, number of parts is few, there is corresponding cost advantage.By using parking
Swing arm replaces worm couple and the adjustment of shaft simple designs, can also realize speed changer manual parking function.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model halting mechanism constructive embodiment 1；
Fig. 2 is the utility model halting mechanism unlocked state schematic diagram；
Fig. 3 is the utility model halting mechanism locking, and park pawl does not enter park tooth channel-shaped state schematic diagram；
Fig. 4 is the utility model halting mechanism locking, and park pawl has entered park tooth channel-shaped state schematic diagram；
Fig. 5 is parking gear main view in the utility model；
Fig. 6 is the cross-sectional view in the utility model in Fig. 5 along E-E line；
Fig. 7 is park pawl main view in the utility model；
Fig. 8 is the top view of Fig. 7 in the utility model；
Fig. 9 is the main view of pin shaft in the utility model；
Figure 10 is the left view of Fig. 9 in the utility model；
Figure 11 is the main view of return pin in the utility model；
Figure 12 is the left view of the utility model Figure 11；
Figure 13 is the main view of the first fixed pin 50 in the utility model；
Figure 14 is the left view of Figure 13 in the utility model；
Figure 15 is the main view of shaft in the utility model；
Figure 16 is the cross-sectional view along line A-A of Figure 15 in the utility model；
Figure 17 is the cross-sectional view along line B-B of Figure 15 in the utility model；
Figure 18 is the cross-sectional view along line C-C of Figure 15 in the utility model；
Figure 19 is the main view of parking cam in the utility model；
Figure 20 is the right view of Figure 19 in the utility model；
Figure 21 is the left view of Figure 19 in the utility model；
Figure 22 is the rearview of Figure 19 in the utility model；
Figure 23 is the main view that return spring is reversed in the utility model；
Figure 24 is the left view of Figure 23 in the utility model；
Figure 25 is the main view of worm sector in the utility model；
Figure 26 is the top view of Figure 25 in the utility model；
Figure 27 is the main view of worm screw in the utility model；
Figure 28 is the left view of Figure 27 in the utility model；
Figure 29 is the second fixed pin main view in the utility model；
Figure 30 is the left view of Figure 29 in the utility model；
Figure 31 is the main view of the first axle bearing sleeve in the utility model；
Figure 32 is the top view of Figure 31 in the utility model；
Figure 33 is the main view of the second bearing set in the utility model；
Figure 34 is the top view of Figure 33 in the utility model；
Figure 35 is the schematic diagram of the utility model halting mechanism constructive embodiment 2；
Figure 36 is the main view of worm sector A in the embodiments of the present invention 2；
Figure 37 is the top view of Figure 36 in the embodiments of the present invention 2；
Figure 38 is the schematic diagram of the expansion application structure of the utility model；
Figure 39 is the main view of shaft A in the expansion application structure of the utility model；
Figure 40 is the cross-sectional view along line D-D of Figure 39 in the expansion application structure of the utility model；
Figure 41 is the main view of worm sector B in the expansion application structure of the utility model；
Figure 42 is the top view of Figure 41 in the expansion application structure of the utility model；
Figure 43 is the top view of Fig. 1 in the utility model；
Figure 44 is the left view of Fig. 1 in the utility model；
Figure 45 is the top view of Figure 35 in the utility model；
Figure 46 is the left view of Figure 35 in the utility model；
Figure 47 is the top view of Figure 38 in the utility model；
Figure 48 is the left view of Figure 38 in the utility model.
Wherein: 10- parking gear；11- tooth socket；12- splined hole；20- park pawl；21- pin shaft hole；22- work is wide
Face；23- return pin hole；24- park tooth；30- pin shaft；40- return pin；The first fixed pin of 50-；60- shaft；61- flat；62-
The first oil sealing diameter of axle；63- first supports the diameter of axle；The second fixed pin holes of 64-；The first fixed pin holes of 65-；The second support shaft of 66-
Diameter；60a- shaft A；67- oil sealing diameter of axle A；68- flat A；69- screw hole A；70- parking cam；The first mounting hole of 71-；72- waist
Shape slot；73- reverses return spring works hole；74- parking working profile；75- park pawl return guide hole；80- reverses return bullet
Spring；The first pin of 81-；The second pin of 82-；The flexibly positioned seat of 90-；The first ball bearing of 100-；110- worm sector；111- snail
The gear teeth；The second mounting hole of 112-；113- auxiliary positioning slot；114- torsionspring work nest；115- fixed pin holes；110a- is fan-shaped
Worm gear A；110b- worm sector B；120- worm screw；Mono- word square groove of 121-；122- the second oil sealing diameter of axle；First diameter of axle of 123-；
124- worm tooth；Second diameter of axle of 125-；The second ball bearing of 130-；The first oil sealing of 140-；The second oil sealing of 150-；160- first axle
Bearing sleeve；The second fixed pin of 170-；180- second bearing set；The second oil sealing of 190- A.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1:
Picture 1-4, shown in 43 and 44, a kind of automobile transmission halting mechanism, including parking gear 10, park pawl
20, pin shaft 30, return pin 40, the first fixed pin 50, shaft 60, parking cam 70, torsion return spring 80, flexibly positioned seat
90, the first ball bearing 100, worm sector 110, worm screw 120, the second ball bearing 130 and the second fixed pin 170；First ball bearing
100 and second are equipped with worm screw 120 between ball bearing 130, and worm screw 120 is used to receive the driving of parking driving motor, worm screw 120 with
Worm sector 110 engages, and worm sector 110 is equipped with fixed pin holes 115, torsionspring work nest 114 and auxiliary positioning slot
113, flexibly positioned seat 90 is installed on shell and cooperates with the auxiliary positioning slot 113 on worm sector 110；Worm sector 110 is logical
It crosses the second fixed pin 170 to connect with shaft 60,60 both ends of shaft are respectively equipped with the first bearing diameter of axle 63 and the second bearing diameter of axle
66,180 clearance fits are covered with first axle bearing sleeve 160 and second bearing respectively, first axle bearing sleeve 160 and second bearing cover 180 points
Other close-fitting is installed on shell, and shaft 60 is connect by the first fixed pin 50 with parking cam 70, while in worm sector 110
The one torsion return spring 80 with pretightning force is installed between parking cam 70, parking cam 70 is equipped with torsion return spring work
Make hole 73, park pawl return guide hole 75, parking working profile 74；Parking cam 70 passes through parking working profile 74 and parking spine
Pawl working profile 22 engages, while the park pawl return on the return pin 40 being installed in park pawl 20 and parking cam 70
Guide hole 75 cooperates, and as shown in figs. 9-10,70 empty set of parking cam is on the pin shaft 30 for being fixedly installed in shell, park pawl 20
Park tooth 24 is engaged with the tooth socket 11 on parking gear 10, and parking gear 10 passes through splined hole 12 and variator gear shaft
Locking or the unlock of variator gear and shafting are realized in connection.
As seen in figs. 5-6, parking gear 10 is equipped with for the tooth socket 11 of parking lock and for being mounted on transmission tooth
The splined hole 12 of wheel shaft.
As Figure 7-8, park pawl 20 are equipped with pin shaft hole 21 for installing limit, working profile 22, return pin hole 23
And the equal functional parts of park tooth 24, the specific size at each position, size and profile surface shape can be according to actual use occasion or needs
It is designed adjustment.
As shown in figs. 10-11, return pin 40 cooperate with the park pawl return guide hole 75 of parking cam 70, size and
Length will be designed according to practical application or needs, be mainly used for return when park pawl parking unlock.
As illustrated in figs. 13-14, the first fixed pin 50, size and length according to practical application or will be set
Meter, close-fitting is installed on the first fixed pin holes 65 in shaft 60, for transmitting parking driving force, and by on parking cam 70
Kidney slot 72 cooperate, to limit the slewing area of parking cam.
As shown in figs. 16-18, the design of shaft 60 has a flat 61 for installing parking angular position sensor, the first oil sealing
The diameter of axle 62 cooperates with the second oil sealing 150 for sealing, the first bearing diameter of axle 63 and 160 clearance fit of first axle bearing sleeve, and second
It holds the diameter of axle 66 and second bearing and covers 180 clearance fit clearance fits, to ensure that shaft 60 can be freely rotated and wearability, first
Fixed pin holes 65 install the first fixed pin 50 for close-fitting, and the second fixed pin holes 64 install the second fixed pin 170, tool for close-fitting
Body dimensions can adjust according to the actual application.
As shown in figures 19-22, parking cam 70, design have the first mounting hole 71, and kidney slot 72 reverses return spring works
Hole 73, parking working profile 74 and park pawl return guide hole 75, specific size and profile will be according to practical application or need
Carry out appropriate adjustment.
As shown in figs. 23-24, return spring 80 is reversed, for empty set in shaft 60, both ends are respectively designed with work or fixation
First pin 81 and the second pin 82, specific size specification can adjust according to the actual application.
As shown by figures 25-26, worm sector 110, design have worm-gear toothing 111, the second mounting hole 112, auxiliary positioning slot
113, torsionspring work nest 114 and fixed pin holes 115, specific size, worm gear parameter and profile will be according to practical applications
Or it needs to carry out appropriate adjustment.
As shown in Figure 27-28, worm screw 120, design has a word square groove 121 for receiving parking Motor torque and revolving speed, the
The two oil sealing diameters of axle 122 are for sealing, first diameter of axle 123 is used to support, worm tooth 124 is for driving worm sector 110, the second axis
For supporting, specific size, worm screw parameter according to practical application or will need to carry out appropriate adjustment diameter 125.
As shown in Figure 31-32, first axle bearing sleeve 160 and second bearing set 180 are fixedly mounted on case of transmission, main
It is used to support shaft 60, with 60 clearance fit of shaft, first axle bearing sleeve 160 and 180 design of second bearing set have flange face, use
In 60 component axial limiting of shaft.
It, can be with power train in the gear shaft for the power train that parking gear 10 is fixedly mounted on speed changer by splined hole 12
Gear shaft synchronizes rotation, and by 24 cooperating of park tooth on tooth socket 11 and park pawl, i.e. indentation carries out locking biography
Dynamic system transfers to unlock power train；Park pawl 20 carries out position with 30 clearance fit of pin shaft by pin shaft hole 21 and fixes, and stays
Vehicle pawl 20 can only be rotated around pin shaft 30, and 30 both ends of pin shaft are fixedly mounted on the corresponding installation of case of transmission by interference fit
Hole；Working profile 22 in park pawl 20 is matched with the parking working profile 74 on parking cam 70, by parking cam 70
Rotation to drive park pawl 20 to swing up and down in limited range around pin shaft 30；Park pawl 20 is equipped with return pin hole
23, return pin hole 23 is fixed on by interference fit in 40 one end of return pin, and the park pawl on the other end and parking cam 70 is returned
Position guide hole 75 cooperates, and the slewing area of park pawl 20 is thus limited, and in mechanism unlock, by return pin 40 by parking
Pawl 20 lifts or transfers to from the tooth socket 11 of parking gear 10.
As illustrated in figs. 29-30, parking cam 70, the first mounting hole 71 cooperate with 60 small―gap suture of shaft, kidney slot 72 and the
Thus the cooperation of one fixed pin 50, the first fixed pin holes 65 that the first fixed pin 50 is installed in shaft 60 by interference fit are stayed
The circumferential direction of vehicle cam 70 and radially movable range are limited by kidney slot 72 and the first fixed pin 50；Worm sector 110 and shaft
60 small―gap sutures fit through fixed pin holes 115, the second fixed pin holes 64 and the second fixed pin 170 interference fit to realize fan-shaped snail
Wheel 110 is rigidly connected with shaft 60, is integrated；Worm sector 110 is inserted in front of shaft 60, must be inserted in torsion return bullet 80
Shaft 60 is placed between parking cam 70 and worm sector 110, after worm sector 110 and the installation of shaft 60 are fixed, must will be turned round
The first pin 81 and the second pin for going back to a bullet 80 are inserted into torsion return spring works hole 73 and torsionspring work nest respectively
In 114, then by shaft 60 first bearing the diameter of axle 63 with second support the diameter of axle 66 be installed on shell with interference fit respectively
First axle bearing sleeve 160 and second bearing cover 180 clearance fits be installed in speed changer；Wherein elastic reservation 90 is pacified by screw thread
The auxiliary positioning slot 113 of corresponding site and worm sector 110 that dress is fixed on case of transmission cooperates；Worm screw 120 passes through first
The diameter of axle 123 and the first ball bearing 100 and second diameter of axle 125 and the second ball bearing 130 are fixedly installed in the corresponding bearing hole of shell
In.
As known from the above, this halting mechanism is directly installed in gear box of automobile, using speed changer internal lubrication
Oil is lubricated, and to ensure that installation position seals, design has the second oil for being installed on the first oil sealing 140 of shell with worm screw 120
It seals the diameter of axle 122 to cooperate, the first oil sealing diameter of axle 62 of the second oil sealing 150 and shaft 60 that are installed on shell cooperates, to ensure to meet
The integral sealing requirement of automotive transmission.
For the locking and unlocking process of the utility model halting mechanism, detailed description are as follows: directly being connect by worm screw 120
By the revolving speed and torque of parking motor, slow down by worm sector 110 and torque increase, by the fixed pin on worm sector 110
Torque and corner are passed to the second fixed pin 170 being fixed in shaft 60 by hole 115, by be fixed in shaft 60
Torque and corner are passed to shaft 60 by two fixed pins 170, and torque and corner pass to by shaft 60 to be used for parking convex
First fixed pin 50 of 70 limit of wheel, passes to parking cam 70, parking cam 70 for rotation angle of torque by the first fixed pin 50
Locking power is converted by torque, while rotating an angle；Pass through 70 parking working profile 74 of parking cam and park pawl 20
The engagement press of working profile 22, passes to park pawl 20 for locking power, and park pawl 20 is around being fixed on 30 turns of pin shaft of shell
Parking gear 10 is moved and presses to, until the park tooth 24 of park pawl 20 is caught in the tooth socket 11 of parking gear 10 completely, elasticity is fixed
Position 90 steel ball of seat falls into the parking lock position of 110 auxiliary positioning slot 113 of worm sector, parking gear 10 by splined hole 12 with
Gear axis connection in the power train of automotive transmission, locking power and its reaction force will be in parking cam 70, shaft at this time
60 install with parking gear 10 on the shaft section of gear shaft, and so far, this halting mechanism is in machine without outer power drive
Tool self-locking state；Since the tooth socket 11 of parking gear 10 is limited, the park tooth 24 of park pawl 20 be also impossible to it is infinitely small,
Therefore during parking lock, there are the probability that the park tooth 24 of park pawl 20 can not be caught in 10 tooth socket 11 of parking gear, are
Avoid influence of this operating condition to parking lock functional effect, it is ensured that parking lock function is absolutely effectively and reliable, is fanning
It is equipped with torsion return spring 80 between shape worm gear 110 and parking cam 70 and carries out preload installation, when this halting mechanism is in lock
Only when working condition, if park pawl 20 is not caught in the tooth socket 11 of parking gear 10 but be stuck in the outside circle of parking gear
Place, then reversing return spring 80 and parking cam 70, there are corner displacements, and parking cam 70 will be applied by reversing return spring 80
Additional locking power, until the park tooth 24 of park pawl 20 is caught in (when vehicle moves or transmission system exists there are small
When gap) tooth socket 11 of parking gear 10, torsion return spring 80 returns installation original state, and parking lock is in place；From parking
Lockup state unlock, just with locking process on the contrary, parking motor inputs the revolving speed and torque opposite with parking lock to driving
Worm screw 120 drives worm sector 110 by worm screw 120, and worm sector 110 passes through 170 drive shaft 60 of the second fixed pin, shaft
60 drive parking cam 70 by the first fixed pin 50, and parking cam 70 is installed on by the driving of its park pawl return guide hole 75
Return pin 40 in park pawl 20 transfers to park pawl 20 from the tooth socket 11 of parking gear 10, while flexibly positioned seat
90 steel ball rises to the 113 parking unlocking position of auxiliary positioning slot of worm sector 110, realizes parking unlock.
It can be seen from the above, the utility model will be directly installed on inside gear box of automobile, with automotive transmission one
Change design, by worm and worm gear come torque increase of slowing down, without by multiple stage gear reduction, can select comparatively power compared with
The plug-in space of parking driving motor is greatly reduced in small parking driving motor, and control device is simplified, and parking movement passes
It is short to pass path, high efficient and reliable not only dexterously solves the problems, such as arrangement space, and the quantity of sleeve mechanism components is few,
Purchase cost is reduced simultaneously.
Fig. 1 is the structural schematic diagram of the utility model halting mechanism, illustrates this halting mechanism except case of transmission, parking
Outside motor and corner displacement sensor, all part relative positional relationships；Fig. 2 is that the utility model halting mechanism unlocked state is shown
It is intended to, illustrates parking gear 10 under the state, park pawl 20, return pin 40, the first fixed pin 50, parking cam 70, bullet
The relative positional relationship of property positioning seat 90, worm sector 110 and worm screw 120；Fig. 3 the utility model halting mechanism locking, parking
Pawl does not enter park tooth channel-shaped state schematic diagram, illustrates parking gear 10 under the state, park pawl 20, return pin 40, first
Fixed pin 50, parking cam 70, flexibly positioned seat 90, worm sector 110 and the relative positional relationship of worm screw 120；Fig. 4 is this reality
With novel parking mechanism locking, park pawl has entered park tooth channel-shaped state schematic diagram, illustrates parking gear 10 under the state, stays
Vehicle pawl 20, return pin 40, the first fixed pin 50, parking cam 70, flexibly positioned seat 90, worm sector 110 and worm screw 120
Relative positional relationship.
Embodiment 2:
As the optimization of the utility model, Figure 35, Figure 45, Figure 46 are the optimization structural schematic diagram of the utility model: this is excellent
Change scheme is the reverse drive latching characteristics based on worm-gears, when designing and manufacturing must for this two parts material therefor and
Coefficient of friction selects suitable lead angle, to realize worm-gears single-direction transmission, i.e., when worm screw 120 is active, can transmit and turn
Speed and torque, when worm sector 110 is active, mechanism is self-locking, does not transmit revolving speed and torque, therefore this prioritization scheme may reduce
Flexibly positioned seat 90, corresponding case of transmission can cancel the part-structure, and as shown in Figure 36-37, worm sector A110a is taken
The auxiliary positioning that disappears slot 113 can further simplify the number of parts of the utility model halting mechanism assembly in this way, further decrease
The cost of the utility model.
The functions expanding application of the utility model, Figure 38, Figure 47, Figure 48 are that the expansion application structure of the utility model is illustrated
Figure, this application scheme use purely mechanic application primarily directed to automotive transmission halting mechanism, the electricity suitable for electronics P gear
Electrical Control part moves to the application of vehicle shift control assembly or manual parking.As shown in Figure 38-42, cancellation worm screw 120,
The installation of first ball bearing 100, the second ball bearing 130 and the first oil sealing 140, worm sector B110b cancel 111 knot of worm-gear toothing
Structure, shaft A60a increase oil sealing diameter of axle A and the second oil sealing A190 and cooperate, and increase flat A68 for installing parking swing arm, increase
For fixing parking swing arm, parking swing arm is not included in the utility model screw hole A69, can be carried out according to the specific application occasions
Design or name.
For the first ball bearing 100, the second ball bearing 130, flexibly positioned seat 90, the first oil sealing 140, the second oil sealing 150
And second the not special statement of the utility model such as parts or functional part such as oil sealing A190 part, can be according to specific speed changer
The requirement of implementation carries out selection implementation with reference to the corresponding technical conditions of spare part in common use and standard.This halting mechanism is pacified
Dress is realized, must be supported according to halting mechanism or sealing position, correspondence design the mounting structure to match on case of transmission.
The revolving speed and torque for directly receiving parking motor by worm screw 120 slow down and torque increase by worm sector 110,
Torque and corner are passed to the second fixed pin 170 being fixed in shaft 60 by the fixed pin holes 115 on worm sector 110,
Torque and corner are passed into shaft 60 by the second fixed pin 170 being fixed in shaft 60, and pass through shaft 60 for torque
The first fixed pin 50 limited for parking cam 70 is passed to corner, is passed to rotation angle of torque by the first fixed pin 50
Parking cam 70, torque is converted locking power by parking cam 70, while rotating an angle；Pass through 70 parking work of parking cam
Make profile surface 74 and engage press with 20 working profile 22 of park pawl, locking power is passed into park pawl 20, park pawl 20 around
The pin shaft 30 for being fixed on shell rotates and presses to parking gear 10, until the park tooth 24 of park pawl 20 is caught in park tooth completely
The tooth socket 11 of wheel 10, flexibly positioned 90 steel ball of seat fall into the parking lock position of 110 auxiliary positioning slot 113 of worm sector, parking
Gear 10 is by the gear axis connection in the power train of splined hole 12 and automotive transmission, and locking power and its reaction force will at this time
On the shaft section that parking cam 70, shaft 60 and parking gear 10 install gear shaft, so far, this halting mechanism is without outer
In the case where power drive, it is in mechanical self-latching state；Since the tooth socket 11 of parking gear 10 is limited, park pawl 20 is stayed
Skiving 24 is also impossible to infinitely small, therefore during parking lock, there are the park tooths 24 of park pawl 20 can not be caught in parking
The probability of 10 tooth socket 11 of gear, to avoid influence of this operating condition to parking lock functional effect, it is ensured that parking lock function hundred
/ hundred is effectively and reliable, and torsion return spring 80 is equipped between worm sector 110 and parking cam 70 and carries out preload peace
Dress, when this halting mechanism is in locking working condition, if park pawl 20 be not caught in the tooth socket 11 of parking gear 10 but
It is stuck at the outside circle of parking gear, then reversing return spring 80 and parking cam 70, there are corner displacements, reverse return spring
80 will apply additional locking power to parking cam 70, until the park tooth 24 of park pawl 20 is caught in (when there are small for vehicle
Move or transmission system there are when gap) tooth socket 11 of parking gear 10, torsion return spring 80 returns installation original state,
Parking lock is in place；From parking lock states thereof, just with locking process on the contrary, the input of parking motor is opposite with parking lock
Revolving speed and torque to driving worm screw 120, by worm screw 120 drive worm sector 110, worm sector 110 pass through the second fixed pin
170 drive shafts 60, shaft 60 drive parking cam 70 by the first fixed pin 50, and parking cam 70 is returned by its park pawl
Position guide hole 75 drives the return pin 40 being installed in park pawl 20 to dial park pawl 20 from the tooth socket 11 of parking gear 10
Out, while the steel ball of flexibly positioned seat 90 rises to the 113 parking unlocking position of auxiliary positioning slot of worm sector 110, realizes
Parking unlock.
The utility model is based primarily upon the transmission principle and feature of worm-gears and cam mechanism, makes full use of worm screw snail
The big feature of the high reduction ratio of wheel set, torque increase, is organically combined with cam mechanism, by reasonable space layout, realizes this
Halting mechanism in locking working condition can mechanical self-latching, securely and reliably.Mechanism is opposite to be simplified, and number of parts is few, is occupied empty
Between it is small, it is at low cost, and lower-powered parking driving motor can be selected.
From the force analysis of this halting mechanism it is found that the basic load of parking lock operating condition is transmitted by parking gear 10
To park pawl 20, park pawl 20 passes to pin shaft 30, passes to case of transmission by pin shaft 30；Halting mechanism self-lock force is
Its sub-fraction component for bearing load, is decided by the oblique angle of 20 park tooth of park pawl, 24 two sides, which mainly passes through parking
Cam 70 passes to shaft 60, then passes to transmission case by first axle bearing sleeve 160 and second bearing set 180 by shaft 60
Body.When mechanism unlocks, as long as overcoming rubbing between 20 working profile 22 of 70 parking working profile 74 of parking cam and park pawl
Wipe power.By being analyzed above it is found that the final load-bearing part of the basic load of the utility model halting mechanism is case of transmission, satisfaction is stayed
Mechanism of car function and reliability design requirement.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is set
Set ", " connected " and " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or one
Ground connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.It is right
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of automobile transmission halting mechanism, including parking gear (10), park pawl (20), pin shaft (30), return pin
(40), the first fixed pin (50), shaft (60), parking cam (70), torsion return spring (80), flexibly positioned seat (90), the
One ball bearing (100), worm sector (110), worm screw (120), the second ball bearing (130) and the second fixed pin (170)；First ball
It being equipped between bearing (100) and the second ball bearing (130) worm screw (120), worm screw (120) engages connection with worm sector (110),
Fixed pin holes (115), torsionspring work nest (114) and auxiliary positioning slot (113) are provided on worm sector (110), it is special
Sign is that the flexibly positioned seat (90) is installed on shell and cooperates with the auxiliary positioning slot (113) on worm sector (110)
Connection；Worm sector (110) is connect by the second fixed pin (170) with shaft (60), and shaft (60) both ends are respectively equipped with first
Support the diameter of axle (63) and second bearing the diameter of axle (66), first bearing the diameter of axle (63) and second support the diameter of axle (66) respectively with first axle
Close-fitting is pacified respectively for bearing sleeve (160) and second bearing set (180) clearance fit, first axle bearing sleeve (160) and second bearing set (180)
Loaded on shell, shaft (60) is connect by the first fixed pin (50) with parking cam (70), and worm sector (110) and parking are convex
It takes turns and a torsion return spring (80) with pretightning force is installed between (70), parking cam (70) is equipped with torsion return spring works
Hole (73), park pawl return guide hole (75), parking working profile (74)；
The parking cam (70) engages connection with park pawl working profile (22) by parking working profile (74), is installed on
The park pawl return guide hole (75) on return pin (40) and parking cam (70) in park pawl (20) is cooperatively connected, parking
Park tooth (24) and parking gear of cam (70) empty set on the pin shaft (30) for being fixedly installed in shell, park pawl (20)
(10) tooth socket (11) on engages connection, and parking gear (10) passes through splined hole (12) and variator gear axis connection.
2. automobile transmission halting mechanism according to claim 1, which is characterized in that set on the parking gear (10)
Have for the tooth socket (11) of parking lock and the splined hole (12) for being mounted on transmission gear shaft.
3. automobile transmission halting mechanism according to claim 1 or 2, which is characterized in that the park pawl (20)
Equipped with pin shaft hole (21), working profile (22), return pin hole (23) and park tooth (24).
4. automobile transmission halting mechanism according to claim 3, which is characterized in that the return pin (40) and parking
The park pawl return guide hole (75) of cam (70) is cooperatively connected, and the first fixed pin (50) close-fitting is installed on the on shaft (60)
One fixed pin holes (65) are simultaneously cooperatively connected with the kidney slot (72) on parking cam (70).
5. automobile transmission halting mechanism according to claim 1, which is characterized in that be provided on the shaft (60)
For installing the flat (61) of parking angular position sensor, the first oil sealing diameter of axle (62) and the second oil sealing (150) sealing cooperate
Connection, the first bearing diameter of axle (63) and first axle bearing sleeve (160) clearance fit, the second bearing diameter of axle (66) and second bearing set
(180) clearance fit, the first fixed pin holes (65) close-fitting install the first fixed pin (50), the installation of the second fixed pin holes (64) close-fitting
Second fixed pin (170).
6. automobile transmission halting mechanism according to claim 1, which is characterized in that parking cam (70) setting
There are the first mounting hole (71), kidney slot (72), torsion return spring works hole (73), parking working profile (74) and park pawl
Return guide hole (75).
7. automobile transmission halting mechanism according to claim 1, which is characterized in that the torsion return spring (80)
Empty set is on shaft (60) and both ends are respectively arranged with the first pin (81) and the second pin (82).
8. automobile transmission halting mechanism described according to claim 1 or 2 or 5 or 6 or 7, which is characterized in that the sector
Worm gear (110) is provided with worm-gear toothing (111), the second mounting hole (112), auxiliary positioning slot (113), torsionspring work nest
(114) and fixed pin holes (115).
9. automobile transmission halting mechanism according to claim 1, which is characterized in that the worm screw (120) is provided with
For receiving a word square groove (121) of parking Motor torque and revolving speed, the second oil sealing diameter of axle (122), first diameter of axle (123), using
In worm tooth (124), second diameter of axle (125) of driving worm sector (110).
10. automobile transmission halting mechanism described according to claim 1 or 2 or 5 or 6 or 7 or 9, which is characterized in that described
First axle bearing sleeve (160) and second bearing set (180) are fixedly mounted on case of transmission, first axle bearing sleeve (160) and second
Bearing holder (housing, cover) (180) is provided with the flange face for shaft (60) axial limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466915.1U CN209309301U (en) | 2018-09-08 | 2018-09-08 | A kind of automobile transmission halting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821466915.1U CN209309301U (en) | 2018-09-08 | 2018-09-08 | A kind of automobile transmission halting mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209309301U true CN209309301U (en) | 2019-08-27 |
Family
ID=67668937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821466915.1U Active CN209309301U (en) | 2018-09-08 | 2018-09-08 | A kind of automobile transmission halting mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825775A (en) * | 2018-09-08 | 2018-11-16 | 赣州经纬科技股份有限公司 | A kind of automobile transmission halting mechanism |
| US11920678B1 (en) * | 2023-02-13 | 2024-03-05 | GM Global Technology Operations LLC | Parking pawl pin bore support |
-
2018
- 2018-09-08 CN CN201821466915.1U patent/CN209309301U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825775A (en) * | 2018-09-08 | 2018-11-16 | 赣州经纬科技股份有限公司 | A kind of automobile transmission halting mechanism |
| US11920678B1 (en) * | 2023-02-13 | 2024-03-05 | GM Global Technology Operations LLC | Parking pawl pin bore support |
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