CN212643514U - Parking mechanism for vehicle transmission and vehicle transmission - Google Patents
Parking mechanism for vehicle transmission and vehicle transmission Download PDFInfo
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- CN212643514U CN212643514U CN202020516446.0U CN202020516446U CN212643514U CN 212643514 U CN212643514 U CN 212643514U CN 202020516446 U CN202020516446 U CN 202020516446U CN 212643514 U CN212643514 U CN 212643514U
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- pawl
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Abstract
The utility model discloses a parking mechanism and vehicle transmission for vehicle transmission, include: the gear shifting mechanism comprises a ratchet wheel, a pawl matched with the ratchet wheel, a push rod assembly and a gear shifting shaft; the ratchet wheel is used for being assembled on a rotating shaft of the transmission; one end of the pawl is mounted on a pawl pin, and two ends of the pawl pin are used for being fixed on a shell of the transmission; the push rod assembly is provided with a gear shifting sleeve, and the gear shifting sleeve is in contact with the back face of the pawl; the gear shifting shaft is used for pushing the push rod assembly to move in a preset direction to drive the gear shifting sleeve and the pawl to rotate relatively, and the pawl is used for locking the rotating shaft through meshing with the ratchet wheel. Adopt the utility model discloses a parking mechanism for vehicle transmission, simple structure, more compact and size are miniaturized, satisfy the demand in design space.
Description
Technical Field
The utility model relates to a vehicle parking safety technical field especially relates to a parking mechanism and vehicle transmission for vehicle transmission.
Background
With the development level of vehicle automation and electromotion becoming higher and higher, the requirements of customers on the safety of vehicle parking are gradually improved. The traditional manual car stopping method mainly completes the parking by locking the car through a brake disc, but the car still runs the risk of sliding when the car is parked on a slope in the mode. With the rapid development of the automatic transmission and the reduction gearbox of the new energy vehicle, parking (P gear) gradually enters the visual field of customers. The P gear is a special neutral gear which achieves the purpose of fixing the vehicle by mechanically locking the output shaft part of the speed changer or the reduction gearbox, and the P gear has the function of braking after parking, preventing the vehicle from moving and achieving the purpose of parking.
At present, the technical development of the automatic transmission and the reduction gearbox is more skillful, the requirements on the space compactness and the cost of the transmission and the reduction gearbox are higher and higher, and the structure of the P-gear mechanism of the mainstream automatic transmission and the reduction gearbox in the current automobile market is more complex, the manufacture is difficult, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that simplify the parking mechanism's of vehicle transmission structure, make its structure compacter and size miniaturization, satisfy the demand in design space.
In order to solve the above technical problem, a first aspect of the present invention provides a parking mechanism for a vehicle transmission, including: the gear shifting mechanism comprises a ratchet wheel, a pawl matched with the ratchet wheel, a push rod assembly and a gear shifting shaft;
the ratchet wheel is used for being assembled on a rotating shaft of the transmission;
one end of the pawl is mounted on a pawl pin, and two ends of the pawl pin are used for being fixed on a shell of the transmission;
the push rod assembly is provided with a gear shifting sleeve, and the gear shifting sleeve is in contact with the back face of the pawl;
the gear shifting shaft is used for pushing the push rod assembly to move in a preset direction to drive the gear shifting sleeve and the pawl to rotate relatively, and the pawl is used for locking the rotating shaft through meshing with the ratchet wheel.
The push rod assembly comprises a push rod and a gear shifting plate;
one end of the push rod is arranged on the baffle;
the shift plate is mounted on the shift shaft; the gear shifting plate is pushed by the gear shifting shaft to move so as to drive the push rod to move in the preset direction.
Wherein the gear shifting shaft is provided with a finger convex part; the gear shifting baffle is provided with a gear shifting shaft hole;
the gear shifting baffle is sleeved on the gear shifting shaft through the gear shifting shaft hole;
the finger-shaped part is used for pushing the gear shifting plate to move.
The bottom of the baffle is provided with a parking gear groove and a non-parking gear groove; the parking mechanism further comprises a locking support;
the locking support is matched with the parking gear groove and the non-parking gear groove and used for locking the baffle changing plate.
The parking mechanism further comprises a sleeve rotating shaft; the shifting sleeve comprises a hollow cylinder with a convex part and a clapboard with a kidney-shaped hole;
two ends of the sleeve rotating shaft are fixed on a shell of the transmission;
the hollow cylinder is sleeved on the sleeve rotating shaft, and the convex part is contacted with the back of the pawl;
the baffle passes through waist shape hole cover on the push rod, and be located between the first shaft shoulder and the second shaft shoulder of push rod.
The push rod assembly further comprises a return spring and a spring cushion block;
the spring cushion block is sleeved on the push rod;
one end of the partition plate is in contact with the second shaft shoulder, and the other end of the partition plate is in contact with the spring cushion block;
the return spring is sleeved on the push rod and is positioned between the spring cushion block and the first shaft shoulder.
Wherein the parking mechanism further comprises a guide plate;
the guide plate is provided with a limiting hole;
the other end of the push rod penetrates through the limiting hole.
The pawl pin is provided with a pawl return spring;
the pawl return spring is used for resetting the pawl.
The periphery of the ratchet wheel is of a structure with grooves uniformly distributed in the circumferential direction; the inner hole of the ratchet wheel is in a spline structure.
A second aspect of the present invention provides a vehicle transmission, including: the parking mechanism for the vehicle transmission described above.
Adopt above-mentioned technical scheme, a parking mechanism and vehicle transmission for vehicle transmission have following beneficial effect:
1) the parking mechanism for the vehicle transmission provided by the utility model has the advantages of simple structure, compactness and small size, meets the requirement of design space, and has enough strength and durability;
2) the transverse space of the transmission can be fully utilized by adopting the push rod assembly, the axial space of the transmission increased due to arrangement of the parking mechanism is reduced, and the push rod assembly is not provided with a cam structure, so that the machining process is reduced, and the cost is saved;
3) the push rod assembly is provided with a gear shifting sleeve, transverse force is converted into force in a rotating direction, so that the purpose of parking or parking releasing is achieved, and meanwhile, a hollow cylinder of the gear shifting sleeve is sleeved on a sleeve rotating shaft, so that the gear shifting sleeve has enough stability and can bear larger torque;
4) the push rod assembly comprises a change baffle which is of a plate-type stamping structure, so that the manufacturing cost is low;
5) the main parts of the parking mechanism can be formed by forging and stamping processes, so that the processing and manufacturing cost is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic structural diagram of a locking parking gear of a parking mechanism for a vehicle transmission according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a push rod assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a shift plate of a push rod assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a shift shaft according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a shift sleeve of a push rod assembly according to an embodiment of the present invention;
fig. 6 is a structural diagram of a locking non-parking gear of a parking mechanism for a vehicle transmission according to an embodiment of the present invention.
Wherein, the corresponding reference numbers in the figures are: 10-a push rod; 11-a first shoulder; 12-a second shoulder; 13-a return spring; 14-a spring washer; 15-a shift sleeve; 151-hollow cylinder; 152-a separator; 153-a boss; 154-kidney shaped hole; 16-changing a baffle plate; 160-push rod mounting holes; 161-shift shaft hole; 162-parking gear slot; 163-non-park gear slot;
2-a guide plate; 21-a guide plate mounting hole; 22-a limiting hole; 3-a shift shaft; 31-a finger-raised portion; 4-locking the support; 5-sleeve rotating shaft; 6-ratchet wheel; 7-a pawl; 71-a pawl pin; 72-pawl return spring; 73-detent bump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. It is to be understood that the described embodiment is merely one embodiment of the invention and is not intended to be a complete embodiment. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
As shown in FIG. 1, the parking mechanism for the vehicle transmission comprises a ratchet wheel 6, a pawl 7 matched with the ratchet wheel 6, a push rod assembly and a gear shifting shaft 3;
the ratchet wheel 6 is used for being assembled on a rotating shaft of the transmission, wherein the periphery of the ratchet wheel 6 is of a circumferentially and uniformly distributed slotted structure, an inner hole of the ratchet wheel 6 is of a spline structure, the ratchet wheel 6 can be pressed on the rotating shaft of the transmission through interference fit, and the rotating shaft can be an input shaft, an output shaft or an intermediate shaft of the transmission;
one end of the pawl 7 is mounted on a pawl pin 71, and two ends of the pawl pin 71 are used for being fixed on a shell of the transmission, wherein the pawl pin 71 is a cylindrical optical axis; specifically, the pawl 7 can rotate around the pawl pin 71 and is matched with the ratchet 6 to achieve the purpose of parking or releasing parking;
the push rod assembly is provided with a gear shifting sleeve 15, and the gear shifting sleeve 15 is in contact with the back surface of the pawl 7;
the gear shifting shaft 3 is used for pushing the push rod assembly to move in a preset direction, so that the gear shifting sleeve 15 and the pawl 7 are driven to rotate relatively, and the pawl 7 is used for locking the rotating shaft through being meshed with the ratchet 6.
The parking mechanism for the vehicle transmission has the advantages of simple structure, compactness and small size, meets the requirement of design space, and also has sufficient strength and durability.
As shown in fig. 1 to 4, the tappet assembly includes a tappet 10 and a shift plate 16; one end of the push rod 10 is arranged on the baffle plate 16; specifically, the shift plate 16 is riveted to one end of the push rod 10 through a push rod mounting hole 160 of the shift plate 16. It should be noted that one end of the push rod 10 may be movably riveted with the changing plate 16, or one end of the push rod 10 may be fixedly riveted with the changing plate 16. In this embodiment, the push rod 10 is mainly used for transmitting a shifting force and pushing the shifting sleeve 15 to shift gears, i.e. a parking gear or a non-parking gear; the push rod 10 can fully utilize the transverse space of the transmission, the axial space of the transmission increased due to arrangement of the parking mechanism is reduced, the push rod assembly is not provided with a cam structure, the machining process is reduced, and the cost is saved. In addition, the baffle 16 is a stamping plate, and a plate-type stamping structure is adopted, so that the processing and manufacturing cost is greatly reduced.
Further, the shift gate 16 is mounted on the shift shaft 3; the shift plate 16 is configured to move under the pushing of the shift shaft 3, and drives the push rod 10 to move in the preset direction, where the preset direction may be an axial direction of the push rod 10. In the present embodiment, the shift shaft 3 functions to transmit torque and rotational speed.
Further, the shift plate 16 is provided with a shift shaft hole 161; the shift shaft 3 is provided with a finger 31. The shift plate 16 is sleeved on the shift shaft 3 through a shift shaft hole 161; the finger 31 is used for pushing the shift plate 16 to move.
Specifically, the shift plate 16 and the shift shaft 3 are installed in a clearance fit manner, the power source of the shift shaft 3 may be a shift motor, such as a cable shift motor, the shift shaft 3 and the shift motor may be connected by an external spline and an internal spline, or the joint of the shift shaft 3 and the shift motor is made into a half-crescent type and then connected with the shift motor, and the shift shaft 3 is driven by the shift motor to move, so that the finger protrusion 31 moves into the shift shaft hole 161 or moves out of the shift shaft hole 161, thereby pushing the shift plate 16 to move.
Further, a parking gear groove 162 and a non-parking gear groove 163 are formed in the bottom of the shift plate 16; the parking mechanism further comprises a locking support 4;
the locking support 4 is matched with the parking gear groove 162 and the non-parking gear groove 163 and used for locking the shift plate 16, wherein the locking support 4 is of a spring locking structure and is installed on a shell of the transmission and used for locking gears, such as a locking parking gear or a locking non-parking gear.
Specifically, when the finger 31 of the shift shaft 3 moves into the shift shaft hole 161 of the shift gate 16, the finger 31 pushes the shift gate 16 to move so that the top of the lock bracket 4 is received in the parking shift groove 162, thereby locking the parking mechanism in the parking shift position; when the finger 31 of the shift shaft 3 moves out of the shift shaft hole 161 of the shift gate 16, the finger 31 pushes the shift gate 16 to move so that the top of the lock bracket 4 is received in the non-parking shift groove 163, thereby locking the parking mechanism in the non-parking shift position.
As shown in fig. 1, 2, 5 and 6, the parking mechanism further includes a sleeve rotating shaft 5; the shifting sleeve 15 comprises a hollow cylindrical body 151 with a boss 153 and a spacer 152 with a kidney-shaped hole 154;
the two ends of the sleeve rotating shaft 5 are fixed on the shell of the transmission and are used for providing rotating support for the gear shifting sleeve 15, wherein the sleeve rotating shaft 5 can be a hollow shaft, so that the weight of the parking mechanism is reduced conveniently; in other embodiments, the sleeve rotating shaft 5 may also be a solid shaft, and the weight of the parking mechanism is reduced by reducing the shaft diameter of the solid shaft;
the hollow cylinder 151 is sleeved on the sleeve rotating shaft 5, and the convex part 153 is contacted with the back of the pawl 7;
the baffle 152 passes through waist shape hole 154 cover is in on the push rod 10, and be located between the first shoulder 11 and the second shoulder 12 of push rod 10, wherein the baffle 152 can rotate around sleeve pivot 5 under the promotion of first shoulder 11 or second shoulder 12, and then drives pawl 7 and rotate, converts the power of advancing of push rod 10 into the revolving force of sleeve 15 of shifting, can make full use of the horizontal space of derailleur, and wherein, push rod 10, first shoulder 11 and second shoulder 12 can integrated into one piece.
Specifically, when parking is required, the shift plate 16 is pushed by the shift shaft 3 to move, the push rod 10 is driven to move in a preset direction, for example, the axial direction from the other end to one end of the push rod 10, and the partition plate 152 is driven to rotate around the sleeve rotating shaft 5, the boss 153 slides along the back surface of the pawl 7, so that the pawl 7 is driven to rotate around the pawl pin 71, the boss 153 pushes against the pawl boss 73 on the back surface of the pawl 7, the pawl 7 is engaged with the ratchet 6, and the rotating shaft of the transmission is locked; when the parking needs to be released, the shift plate 16 is pushed by the shift shaft 3 to move, the push rod 10 is driven to move in the reverse direction of the preset direction, for example, the axial direction from one end of the push rod 10 to the other end, and the partition plate 152 is driven to rotate around the sleeve rotating shaft 5, the boss 153 slides along the back surface of the pawl 7, the pawl 7 rotates around the pawl pin 71 in the reverse direction, so that the boss 153 leaves the pawl boss 73, the pawl 7 is separated from the ratchet 6, and the rotating shaft of the transmission is released from locking.
Thereby shift sleeve 15 converts horizontal power into the power of direction of rotation and reaches the purpose of parking or removing the parking among the above-mentioned scheme, simultaneously, overlaps hollow cylinder 151 of shift sleeve 15 on sleeve pivot 5, makes shift sleeve 15 have sufficient stability and can bear great moment.
As shown in fig. 1, 2 and 6, the push rod assembly further includes a return spring 13 and a spring pad 14;
the spring cushion block 14 is sleeved on the push rod 10, wherein the spring cushion block 14 can be selected from standard cushion blocks, so that the cost is reduced;
one end of the partition plate 152 is in contact with the second shaft shoulder 12, the other end of the partition plate 152 is in contact with the spring cushion block 14, the partition plate 152 and the spring cushion block 14 move synchronously, and the spring cushion block 14 plays a role in limiting and supporting the return spring 13;
the return spring 13 is sleeved on the push rod 10 and located between the spring cushion block 14 and the first shaft shoulder 11, wherein one end of the return spring 13 is limited by the first shaft shoulder 11, and the other end of the return spring is limited by the spring cushion block 14, so that the gear shifting and buffering effects are achieved.
Specifically, when parking is required, the shift plate 16 is pushed by the shift shaft 3 to move, the push rod 10 is driven to move in the preset direction, the return spring 13 on the push rod 10 is compressed, the spring cushion block 14 is pushed after the compression is a certain amount, the partition plate 152 of the shift sleeve 15 is driven to rotate around the sleeve rotating shaft 5, the boss 153 slides along the back surface of the pawl 7, the pawl 7 is driven to rotate around the pawl pin 71, the boss 153 pushes against the pawl boss 73, the pawl 7 is meshed with the ratchet 6, and the rotating shaft of the transmission is locked; when parking needs to be released, the shift plate 16 is pushed by the shift shaft 3 to move, the push rod 10 is driven to move in the direction opposite to the preset direction, the second shoulder 12 on the push rod 10 pushes the partition plate 152 to rotate around the sleeve rotating shaft 5, the spring cushion block 14 is further pushed to move to press against the return spring 13 on the push rod 10, the boss 153 slides along the back of the pawl 7, the pawl 7 rotates around the pawl pin 71 in the opposite direction, the boss 153 is separated from the pawl boss 73, the pawl 7 is separated from the ratchet 6, and the rotating shaft of the transmission is released from being locked.
As shown in fig. 1 and 6, the parking mechanism further includes a guide plate 2;
a limiting hole 22 is formed in the guide plate 2;
the other end of the push rod 10 passes through the limiting hole 22 and can move along the limiting hole 22, wherein the limiting hole 22 plays a role in limiting and guiding the push rod 10.
Specifically, the guide plate 2 is installed on the housing of the transmission through the guide plate installation hole 21, it should be noted that the guide plate 2 can be fixed on the housing of the transmission by passing a bolt through the guide plate installation hole 21, the guide plate is a sheet metal part, and the guide plate is formed by forging and stamping processes, so that the processing and manufacturing cost is greatly reduced.
As shown in fig. 1 and 6, a pawl return spring 72 is arranged on the pawl pin 71, wherein the pawl return spring 72 is of a torsion spring structure, one end of the pawl return spring 72 is mounted on the housing of the transmission, and the other end of the pawl return spring is clamped on the inner side of the pawl 7;
the pawl return spring 72 is used for returning the pawl 7, and specifically, when the boss 153 of the shift sleeve 15 pushes against the pawl boss 73, the pawl return spring 72 is deformed under force; when the boss 153 of the shift sleeve 15 is separated from the pawl boss 73, the pawl return spring 72 is restored to its original state by the elastic deformation force, and the pawl 7 is restored, that is, the pawl 7 is rotated in the reverse direction around the pawl pin 71, so that the pawl 7 is separated from the ratchet 6.
A vehicle transmission comprises a parking mechanism for a vehicle transmission as described above.
The parking mechanism is simple in structure, more compact and miniaturized in size, meets the requirement of design space, and has enough strength and durability; the transverse space of the transmission can be fully utilized by adopting the push rod assembly, the axial space of the transmission increased due to arrangement of the parking mechanism is reduced, and the push rod assembly is not provided with a cam structure, so that the machining process is reduced, and the cost is saved; and the push rod assembly is provided with a gear shifting sleeve, so that the transverse force is converted into the force in the rotating direction, and the aim of parking or parking releasing is fulfilled.
Description of the working principle:
when the vehicle runs normally, the transmission is in a non-parking gear (namely, a P gear) gear, the finger-projecting part 31 of the shift shaft 3 is positioned outside the shift shaft hole, the top of the locking support 4 is accommodated in the non-parking shift groove 163, the projection 153 on the shift sleeve 15 is in contact with the smooth part of the back of the pawl 7, the pawl 7 and the ratchet 6 are in a separated meshing state, and the vehicle can freely run;
as shown in fig. 1, after the vehicle is parked and the parking brake is needed, the shift handle or the knob is placed in the parking gear, the shift power source receives the control signal and then drives the shift shaft 3 to rotate, the shift plate 16 is pushed to move, the top of the locking support 4 is accommodated in the parking shift groove 162 at the moment, and then the push rod 10 is driven to move in the preset direction, so that the return spring 13 is compressed, the spring cushion block 14 is pushed after the compression reaches a certain deformation amount, the shift sleeve 15 is driven to rotate around the sleeve rotating shaft 5, the protruding portion 153 is pushed to abut against the protruding portion 73 of the pawl, and then the pawl 7 is meshed with the ratchet wheel, the rotating shaft of the transmission is locked, and the parking purpose is achieved.
As shown in fig. 6, when the parking needs to be released, the shift lever or the knob is switched from the parking gear to the non-parking gear, the power source receives the control signal and then drives the shift shaft 3 to rotate in the opposite direction, the shift plate 16 is pushed to move, at this time, the top of the locking support 4 is accommodated in the non-parking shift groove 163, and further the push rod 10 is driven to move in the opposite direction of the preset direction, so that the second shoulder 12 pushes the shift sleeve 15 to rotate, the spring cushion block 14 is driven to move and depress the return spring 13, the boss 153 is separated from the pawl boss 73, the pawl 7 returns to the original position, the locking of the pawl 7 is released, the pawl 7 is separated from the ratchet 6, and the purpose of releasing the parking state is achieved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A parking mechanism for a vehicle transmission, characterized by: comprises a ratchet wheel (6), a pawl (7) matched with the ratchet wheel (6), a push rod assembly and a gear shifting shaft (3);
the ratchet wheel (6) is used for being assembled on a rotating shaft of the transmission;
one end of the pawl (7) is mounted on a pawl pin (71), and two ends of the pawl pin (71) are used for being fixed on a shell of the transmission;
the push rod assembly is provided with a gear shifting sleeve (15), and the gear shifting sleeve (15) is in contact with the back surface of the pawl (7);
the gear shifting shaft (3) is used for pushing the push rod assembly to move in a preset direction to drive the gear shifting sleeve (15) and the pawl (7) to rotate relatively, and the pawl (7) is used for locking the rotating shaft through being meshed with the ratchet wheel (6).
2. The parking mechanism for a vehicle transmission according to claim 1, characterized in that: the push rod assembly comprises a push rod (10) and a gear shifting plate (16);
one end of the push rod (10) is arranged on the baffle plate (16);
the shift gate (16) is mounted on the shift shaft (3); the gear shifting plate (16) is pushed by the gear shifting shaft (3) to move so as to drive the push rod (10) to move in the preset direction.
3. The parking mechanism for a vehicle transmission according to claim 2, characterized in that: the gear shifting shaft (3) is provided with a finger-convex part (31); the shift plate (16) is provided with a shift shaft hole (161);
the shift plate (16) is sleeved on the shift shaft (3) through the shift shaft hole (161);
the finger-shaped part (31) is used for pushing the switching baffle plate (16) to move.
4. The parking mechanism for a vehicle transmission according to claim 3, characterized in that: the bottom of the baffle plate (16) is provided with a parking gear groove (162) and a non-parking gear groove (163); the parking mechanism further comprises a locking support (4);
the locking support (4) is matched with the parking gear groove (162) and the non-parking gear groove (163) and used for locking the shifting plate (16).
5. The parking mechanism for a vehicle transmission according to claim 2, characterized in that: the parking mechanism further comprises a sleeve rotating shaft (5); the shift sleeve (15) comprises a hollow cylinder (151) with a boss (153) and a spacer (152) with a kidney-shaped hole (154);
two ends of the sleeve rotating shaft (5) are fixed on a shell of the transmission;
the hollow cylinder (151) is sleeved on the sleeve rotating shaft (5), and the convex part (153) is contacted with the back of the pawl (7);
the partition plate (152) is sleeved on the push rod (10) through the waist-shaped hole (154) and is positioned between the first shaft shoulder (11) and the second shaft shoulder (12) of the push rod (10).
6. The parking mechanism for a vehicle transmission according to claim 5, characterized in that: the push rod assembly further comprises a return spring (13) and a spring cushion block (14);
the spring cushion block (14) is sleeved on the push rod (10);
one end of the partition plate (152) is in contact with the second shaft shoulder (12), and the other end of the partition plate (152) is in contact with the spring cushion block (14);
the return spring (13) is sleeved on the push rod (10) and is located between the spring cushion block (14) and the first shaft shoulder (11).
7. The parking mechanism for a vehicle transmission according to claim 2, characterized in that: the parking mechanism further comprises a guide plate (2);
a limiting hole (22) is formed in the guide plate (2);
the other end of the push rod (10) penetrates through the limiting hole (22).
8. The parking mechanism for a vehicle transmission according to claim 1, characterized in that: a pawl return spring (72) is arranged on the pawl pin (71);
the pawl return spring (72) is used for resetting the pawl (7).
9. The parking mechanism for a vehicle transmission according to claim 1, characterized in that: the periphery of the ratchet wheel (6) is of a structure with grooves uniformly distributed in the circumferential direction; the inner hole of the ratchet wheel (6) is of a spline structure.
10. A vehicle transmission characterized by: comprising a parking mechanism for a vehicle transmission according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020516446.0U CN212643514U (en) | 2020-04-09 | 2020-04-09 | Parking mechanism for vehicle transmission and vehicle transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020516446.0U CN212643514U (en) | 2020-04-09 | 2020-04-09 | Parking mechanism for vehicle transmission and vehicle transmission |
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| Publication Number | Publication Date |
|---|---|
| CN212643514U true CN212643514U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020516446.0U Active CN212643514U (en) | 2020-04-09 | 2020-04-09 | Parking mechanism for vehicle transmission and vehicle transmission |
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| CN (1) | CN212643514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685543A (en) * | 2021-08-31 | 2021-11-23 | 六安江淮永达机械制造有限公司 | Integrated parking system |
-
2020
- 2020-04-09 CN CN202020516446.0U patent/CN212643514U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685543A (en) * | 2021-08-31 | 2021-11-23 | 六安江淮永达机械制造有限公司 | Integrated parking system |
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