CN210153203U - Mechanical parking mechanism of automatic gearbox - Google Patents
Mechanical parking mechanism of automatic gearbox Download PDFInfo
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- CN210153203U CN210153203U CN201920380766.5U CN201920380766U CN210153203U CN 210153203 U CN210153203 U CN 210153203U CN 201920380766 U CN201920380766 U CN 201920380766U CN 210153203 U CN210153203 U CN 210153203U
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- parking
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Abstract
The utility model provides a mechanical parking mechanism of an automatic gearbox, which comprises a parking ratchet wheel, a parking pawl, a pawl return spring and an actuating device, the auto-lock leaf spring, guider, the parking rocking arm, drive cam and zip rocker, guider arranges the top of parking pawl in, it has the one end slope certain angle who makes the movable rod cover of device to put the movable rod in and puts guider in, the other end that makes the movable rod is fixed in the upper end of parking rocking arm, the top at guider is fixed to the one end of auto-lock leaf spring, the other pot head of auto-lock leaf spring is in a spacing logical inslot at parking rocking arm top, install on the supporting seat drive cam's bottom, the gearbox box is passed on drive cam's top, the top at drive cam is fixed to the one end of zip rocker, the other end of zip rocker is connected with acting as go-between of corresponding gear shift handle, the rolling device of parking rocking arm clamps in drive cam's guide slot and. The utility model discloses simple structure, the function is reliable, and is with low costs.
Description
Technical Field
The utility model relates to a parking mechanism, in particular to automatic transmission mechanical type parking mechanism.
Background
In order to prevent the automobile from sliding unexpectedly when the automobile is parked, a parking brake safety mechanism needs to be designed for the automobile. The parking brake form adopted at present is mechanical parking brake, motor parking brake or hydraulic parking brake, wherein the motor parking brake cost is higher, the requirement on a control system is higher, the hydraulic parking brake is easily influenced by a hydraulic system, and a manual emergency unlocking device is required to be added. The mechanical parking is complex in arrangement, but reliable in function and low in cost, and the mechanical parking is directly connected with the control handle through the inhaul cable mechanism, so that parking and unlocking can be performed according to the intention of a driver at any time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, reliable, the lower automatic transmission mechanical type parking mechanism of cost of function.
The method is realized by the following scheme:
a mechanical parking mechanism of an automatic gearbox comprises a parking ratchet wheel, a parking pawl, a pawl return spring, an actuating device, a self-locking plate spring, a guide device and a parking rocker arm, wherein one end of the parking pawl is fixed on a gearbox body through a first fixing device, the parking pawl can rotate around the first fixing device, a claw head at the other end of the parking pawl is opposite to the parking ratchet wheel and is matched and meshed with the parking ratchet wheel, the center of the pawl return spring is fixed on the first fixing device, one end of the pawl return spring is clamped on the parking pawl, the other end of the pawl return spring is fixed on the gearbox body, the guide device is of an inverted groove-shaped structure, the guide device is fixed on the gearbox body and is arranged above the parking pawl, two limiting through grooves are formed in the top of the parking rocker arm, and a protruding part is arranged at the, the lower end of the parking rocker arm is mounted on a second fixing device and can rotate around the second fixing device, the second fixing device is fixed on a gearbox box body, the actuating device comprises an actuating rod, an actuating block and an actuating spring, the actuating block is sleeved at one end of the actuating rod, an inclined actuating surface is arranged at the bottom of the actuating block, the actuating spring is sleeved at the other end of the actuating rod, the actuating spring abuts against the actuating block, one end, sleeved with the actuating block, of the actuating rod is arranged in the guide device in an inclined mode at a certain angle, the actuating surface of the actuating block is in contact with the inclined inner side surface of the top of a claw head of a parking pawl, the other end of the actuating rod is fixed at the upper end of the parking rocker arm, the actuating device can move in the guide device, one end of the self-locking plate spring is fixed at the top of the guide device, the other end of the self-locking plate spring is sleeved in a limiting through The parking device comprises a parking rocker arm, a gear shifting handle and a driving cam, and is characterized by further comprising a driving cam and a zipper rocker, wherein a spiral guide groove is formed in the outer side surface of the driving cam, the bottom end of the driving cam is installed on a supporting seat, the top end of the driving cam penetrates through a gearbox box body, the driving cam is rotatable, one end of the zipper rocker is fixed to the top of the driving cam, the other end of the zipper rocker is connected with a pull wire of the corresponding gear shifting handle, a rolling device is arranged at one outward end of a protruding portion of the parking rocker arm, the rolling device is clamped in the guide groove of the driving cam, and the rolling. The molded lines between the two limiting through grooves at the top of the parking rocker arm are excessive, so that the self-locking plate spring is ensured to smoothly slide between the two limiting through grooves to realize locking and unlocking of the parking mechanism.
Further, the rolling device includes a connecting pin provided on an outward-facing end of the protruding portion and a drum that is fitted over the connecting pin and is rotatable around the connecting pin.
Further, the bottom end of the driving cam is provided with a supporting pin, and the driving cam is installed on the supporting seat through the supporting pin.
Furthermore, a first pressing device is sleeved on the position, located between the box body and the zipper rocker, of the top end of the driving cam in a matched mode, the first pressing device is fixed on the box body, and a sealing device is arranged between the first pressing device and the driving cam. The first pressing device is used for limiting and pressing the driving cam.
Furthermore, the gearbox further comprises a second pressing device, wherein the second pressing device is fixed on the gearbox body and presses one end, far away from the gearbox body, of the first fixing device and one end, far away from the gearbox body, of the second fixing device respectively.
Furthermore, a pulling lock pin is arranged at the other end of the pulling lock rocker and is connected with a pulling wire of the corresponding gear shifting handle.
The utility model discloses an automatic gearbox mechanical type parking mechanism, simple structure, the function is reliable, the cost is lower, it is rotatory to drive the cable rocker through the stay wire of shift handle, thereby drive the drive cam and rotate, the rotation of drive cam makes the rolling device of parking rocking arm roll along the guide slot of drive cam, thereby make the parking rocking arm rotate, the rotation of parking rocking arm drives and actuates the device and removes, make the actuating block of actuating the device push down the parking pawl or loosen the parking pawl, simultaneously the auto-lock leaf spring removes to another spacing logical groove from a spacing logical groove of parking rocking arm, finally realize parking or unblock; the utility model discloses an automatic transmission mechanical type parking mechanism can realize parking and unblock, the function is reliable according to driver's intention at any time.
Drawings
FIG. 1 is a schematic structural diagram of a mechanical parking mechanism of an automatic transmission in embodiment 1;
FIG. 2 is a schematic structural view of a parking rocker arm in embodiment 1;
FIG. 3 is a schematic structural view of an actuator according to embodiment 1;
fig. 4 is a schematic structural view of the driving boss in embodiment 1.
Detailed Description
The embodiment is only for illustrating one implementation of the present invention, and is not to be taken as a limiting illustration of the protection scope of the present invention.
Example 1
A mechanical parking mechanism of an automatic gearbox is disclosed, as shown in figure 1, and comprises a parking ratchet wheel (the parking ratchet wheel is not shown in the figure), a parking pawl 1, a pawl return spring 2, an actuating device 3, a self-locking plate spring 4, a guide device 5, a parking rocker arm 6, a driving cam 7, a zipper rocker 8 and a second pressing device 9, wherein one end of the parking pawl 1 is fixed on a gearbox body through a first fixing pin 10, the parking pawl 1 can rotate around the first fixing pin 10, a claw head at the other end of the parking pawl 1 is oppositely arranged with the parking ratchet wheel and is mutually matched and meshed with the parking ratchet wheel, the center of the pawl return spring 2 is fixed on the first fixing pin 10, one end of the pawl return spring 2 is clamped on the parking pawl 1, the other end of the pawl return spring 2 is fixed on the gearbox body, the guide device 5 is of an inverted groove-shaped structure, the guide device 5 is fixed, as shown in fig. 2, two limiting through grooves 61 are disposed at the top of the parking rocker arm 6, the two limiting through grooves 61 are separated by a certain distance and have a certain height difference, the two limiting through grooves 61 are crossed by a molded line, a protruding portion 62 is disposed at the lower end of the parking rocker arm 6, a rolling device 63 is disposed at an outward end of the protruding portion 62, the rolling device 63 includes a connecting pin 631 and a roller 632, the connecting pin 63 is disposed at an outward end of the protruding portion 62, the roller 632 is sleeved on the connecting pin 631 and can rotate around the connecting pin 631, the lower end of the parking rocker arm 6 is mounted on a second fixing pin 11 and the parking rocker arm 6 can rotate around the second fixing pin 11, the second fixing pin 11 is fixed on the gearbox casing, a second pressing device 9 is fixed on the gearbox casing and the second pressing device 9 presses one ends of the first fixing pin 10 and the second fixing pin 11 away from the gearbox, as shown in fig. 3, the actuating device 3 includes an actuating rod 31, an actuating block 32 and an actuating spring 33, the actuating block 32 is sleeved on one end of the actuating rod 31, the bottom of the actuating block 32 is provided with an inclined actuating surface 321, the actuating spring 33 is sleeved on the other end of the actuating rod 31 and the actuating spring 33 abuts against the actuating block 32, one end of the actuating rod 31 sleeved on the actuating block 32 is arranged in the guiding device 5 with a certain inclination angle, the actuating surface 321 of the actuating block 32 is contacted with the inclined inner side surface of the top of the claw of the parking pawl 1, the other end of the actuating rod 31 is fixed on the upper end of the parking rocker arm 6, the actuating device 3 can move in the guiding device 5, one end of the self-locking plate spring 4 is fixed on the top of the guiding device 5, the other end of the self-locking plate spring 4 is sleeved in a limiting through groove 61 on the top of, as shown in fig. 4, a spiral guide groove 71 is provided on an outer side surface of the driving cam 7, a support pin 72 is provided at a bottom end of the driving cam 7, the driving cam 7 is mounted on the support base 12 through the support pin 72, a top end of the driving cam 7 passes through a transmission case 13 (the transmission case is only partially illustrated in the figure), the driving cam 7 is rotatable, one end of a zipper rocker 8 is fixed at a top portion of the driving cam 7 through a nut 14, a pull lock pin 81 is provided at the other end of the zipper rocker 8, the zipper pin 81 is connected with a pull wire of a corresponding shift handle, a first pressing device 15 is sleeved at a position between the case 13 and the zipper rocker 8 at a top end of the driving cam 7, the first pressing device 15 is fixed on the case 13, a sealing device (the sealing device is not illustrated) is provided between the first pressing device 15 and the driving cam 7, a rolling device 63 of the parking rocker 6 is clamped in the guide groove 71 of the driving cam 7 The groove 71 rolls.
When needs carry out the unblock operation, the driver operates the handle of shifting, act as go-between through the handle of shifting and stimulate cable rocker anticlockwise rotation, thereby drive cam anticlockwise rotation, along drive cam's rotation, the rolling device of parking rocking arm rolls from last down along drive cam's guide slot, thereby make the parking rocking arm rotate around second fixed pin clockwise, the parking rocking arm pivoted drives the actuating rod that actuates the device and moves right simultaneously, this moment under the effort of actuating the rod, it breaks away from the parking pawl to actuate the piece, the power elimination that the piece was used in the parking pawl is used in, the parking pawl leaves the tooth's socket of parking ratchet under pawl return spring's effect this moment, spacing logical inslot that the spacing logical groove of rolling to the left end of auto-lock leaf spring from the parking rocking arm right-hand member unlocks spacing this moment.
When the parking locking operation needs to be executed, a driver operates the gear shifting handle, the pull wire of the gear shifting handle pulls the inhaul cable rocker to rotate clockwise, so that the driving cam is driven to rotate clockwise, along with the rotation of the driving cam, the rolling device of the parking rocker rolls along the guide groove of the driving cam from bottom to top, so that the parking rocker rotates anticlockwise around the second fixing pin, the parking rocker rotates and simultaneously drives the actuating rod of the actuating device to move leftwards, at the moment, under the action force of the actuating rod, the actuating surface of the actuating block pushes the parking pawl to rotate, when the claw head of the parking pawl faces the tooth socket of the parking ratchet wheel, the bottom of the actuating block is in contact with the top surface of the claw head of the parking pawl to generate self-locking force, the parking pawl overcomes the action force of the pawl return spring under the action of the actuating block and is clamped into the tooth socket of the parking ratchet wheel, at the moment, the self, thereby completing the parking of the whole vehicle.
Claims (6)
1. A mechanical parking mechanism of an automatic gearbox comprises a parking ratchet wheel, a parking pawl, a pawl return spring, an actuating device, a self-locking plate spring, a guide device and a parking rocker arm, wherein one end of the parking pawl is fixed on a gearbox body through a first fixing device, the parking pawl can rotate around the first fixing device, a claw head at the other end of the parking pawl is opposite to the parking ratchet wheel and is matched and meshed with the parking ratchet wheel, the center of the pawl return spring is fixed on the first fixing device, one end of the pawl return spring is clamped on the parking pawl, the other end of the pawl return spring is fixed on the gearbox body, the guide device is of an inverted groove-shaped structure, the guide device is fixed on the gearbox body and is arranged above the parking pawl, two limiting through grooves are formed in the top of the parking rocker arm, and a protruding part is arranged at the, the lower end of the parking rocker arm is mounted on a second fixing device and can rotate around the second fixing device, the second fixing device is fixed on a gearbox box body, the actuating device comprises an actuating rod, an actuating block and an actuating spring, the actuating block is sleeved at one end of the actuating rod, an inclined actuating surface is arranged at the bottom of the actuating block, the actuating spring is sleeved at the other end of the actuating rod, the actuating spring abuts against the actuating block, one end, sleeved with the actuating block, of the actuating rod is arranged in the guide device in an inclined mode at a certain angle, the actuating surface of the actuating block is in contact with the inclined inner side surface of the top of a claw head of a parking pawl, the other end of the actuating rod is fixed at the upper end of the parking rocker arm, the actuating device can move in the guide device, one end of the self-locking plate spring is fixed at the top of the guide device, the other end of the self-locking plate spring is sleeved in a limiting through Scrolling, characterized by: the gear shifting device is characterized by further comprising a driving cam and a zipper rocker, wherein a spiral guide groove is formed in the outer side face of the driving cam, the bottom end of the driving cam is installed on the supporting seat, the top end of the driving cam penetrates through the gearbox box body, the driving cam is rotatable, one end of the zipper rocker is fixed to the top of the driving cam, the other end of the zipper rocker is connected with a pull wire of a corresponding gear shifting handle, a rolling device is arranged at one outward end of the protruding portion of the parking rocker, the rolling device is clamped in the guide groove of the driving cam, and the rolling device can roll along the guide groove.
2. The automatic transmission mechanical park mechanism of claim 1, wherein: the rolling device comprises a connecting pin and a roller, the connecting pin is arranged at one outward end of the protruding part, the roller is sleeved on the connecting pin, and the roller can rotate around the connecting pin.
3. The automatic transmission mechanical park mechanism of claim 2, wherein: the bottom of drive cam is provided with the support pin, the drive cam passes through the support pin and installs on the supporting seat.
4. The automatic transmission mechanical park mechanism of claim 1, wherein: the zipper is characterized in that a first pressing device is sleeved on the position, located between the box body and the zipper rocker, of the top end of the driving cam in a matched mode, the first pressing device is fixed on the box body, and a sealing device is arranged between the first pressing device and the driving cam.
5. The automatic transmission mechanical park mechanism of claim 1, wherein: the gearbox casing pressing device further comprises a second pressing device, the second pressing device is fixed on the gearbox casing, and the second pressing device presses one ends, far away from the gearbox casing, of the first fixing device and one ends, far away from the gearbox casing, of the second fixing device respectively.
6. The automatic transmission mechanical parking mechanism according to any one of claims 1 to 5, characterized in that: and the other end of the zipper rocker is provided with a zipper pin, and the zipper pin is connected with a corresponding pull wire of the gear shifting handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380766.5U CN210153203U (en) | 2019-03-25 | 2019-03-25 | Mechanical parking mechanism of automatic gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380766.5U CN210153203U (en) | 2019-03-25 | 2019-03-25 | Mechanical parking mechanism of automatic gearbox |
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| Publication Number | Publication Date |
|---|---|
| CN210153203U true CN210153203U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920380766.5U Active CN210153203U (en) | 2019-03-25 | 2019-03-25 | Mechanical parking mechanism of automatic gearbox |
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| CN (1) | CN210153203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442086A (en) * | 2020-03-30 | 2020-07-24 | 北京汽车股份有限公司 | Parking mechanism and vehicle with same |
-
2019
- 2019-03-25 CN CN201920380766.5U patent/CN210153203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442086A (en) * | 2020-03-30 | 2020-07-24 | 北京汽车股份有限公司 | Parking mechanism and vehicle with same |
| CN111442086B (en) * | 2020-03-30 | 2022-04-29 | 北京汽车股份有限公司 | Parking mechanism and vehicle with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220908 Address after: No.16 Gongxin Avenue, industrial park, Yifeng County, Yichun City, Jiangxi Province Patentee after: Jiangxi Dingsheng New Material Technology Co.,Ltd. Address before: 528000 601-604 room, block A, 1 floor, 131 Ji Hua Xi Road, Chancheng District, Foshan, Guangdong. Patentee before: CORUN HYBRID POWER TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |