CN212360752U - Parking locking mechanism of electric drive type transmission - Google Patents
Parking locking mechanism of electric drive type transmission Download PDFInfo
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- CN212360752U CN212360752U CN202020486169.3U CN202020486169U CN212360752U CN 212360752 U CN212360752 U CN 212360752U CN 202020486169 U CN202020486169 U CN 202020486169U CN 212360752 U CN212360752 U CN 212360752U
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- trapezoidal screw
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Abstract
The utility model discloses an electrically-driven transmission parking locking mechanism, which comprises a parking pawl arranged in a gearbox box body through a pawl pin shaft pivot, wherein the other end of the parking pawl is provided with an execution block, the parking pawl is also provided with a reset spring, and the other end of the reset spring is connected with a pawl pin shaft; a trapezoidal screw is arranged in the gearbox, and one end of the trapezoidal screw is connected with the electric drive component; the trapezoidal screw rod is also provided with a threaded sleeve which is in screw rod transmission with the trapezoidal screw rod, the threaded sleeve is fixedly provided with an actuating component, and the actuating component can apply pressing force to the actuating block to enable the actuating block to be clamped on the parking ratchet wheel which is meshed with the actuating block. The beneficial effects of the utility model are mainly embodied in that: the trapezoidal screw and the threaded sleeve are utilized to convert the rotary motion of the motor shaft of the parking motor into linear motion, so that the stroke of the actuating assembly is accurately controlled; in addition, the radial occupied space of the locking mechanism can be reduced by only adopting one trapezoidal screw rod, and the integral layout in the gearbox box body is convenient.
Description
Technical Field
The utility model relates to an automotive transmission technical field particularly, especially relates to an electricity drive formula derailleur parking locking mechanism.
Background
The automobile industry is rapidly developed, the requirements of people on safety and functions are more and more diversified, vehicles equipped with parking systems are gradually increased, the parking systems are mainly divided into manual parking systems and electronic parking systems, the manual parking systems need larger locking force when parking, and the control difficulty is increased when going up and down the slope, the network connection with the whole vehicle is not available, the complex control can not be realized, the electronic parking systems on the market are gradually increased, as in the cn201721433733.x parking mechanism and vehicle, using a motor in conjunction with a parking system, when the parking motor rotates, the actuating mechanism is driven to act, the locking and unlocking of the parking system are realized, however, the parking actuator of this type mostly realizes the parking action through rotation, the stroke is relatively small, the control precision is insufficient, when the parking motor is in an unlocking or locking position, the parking motor may move when external force is applied to the parking motor, and safety accidents are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide an electricity drive formula derailleur parking locking mechanism.
The purpose of the utility model is realized through the following technical scheme:
the parking locking mechanism of the electrically-driven transmission comprises a parking pawl which is arranged in a gearbox box body through a pawl pin shaft pivot, wherein an execution block which is integrally formed with the parking pawl is arranged at the other end of the parking pawl, a reset spring is also arranged on the parking pawl, and the other end of the reset spring is connected with the pawl pin shaft; the gearbox is internally provided with only one trapezoidal screw, and one end of the trapezoidal screw is connected with an electric drive component which is coaxially arranged with the trapezoidal screw; the trapezoidal screw is further provided with a screw sleeve which is in screw rod transmission with the trapezoidal screw, an actuating component with a central axis coaxial with the central axis of the trapezoidal screw is fixedly arranged on the screw sleeve, and the actuating component can apply pressing force to the actuating block, so that the actuating block is clamped on a parking ratchet wheel meshed with the actuating block.
Preferably, the actuating assembly comprises a driving rod which is fixedly arranged on the screw sleeve and coaxial with the trapezoidal screw rod, a limiting lug and a fixed pier head are fixedly arranged on the driving rod, a driving block and an actuating spring which are sleeved on the driving rod are further arranged between the limiting lug and the fixed pier head, one end of the actuating spring is tightly attached to the limiting lug, and the other end of the actuating spring is fixedly connected with the driving block; the driving surface of the driving block can be tightly attached to the execution block.
Preferably, a guide block is fixedly arranged on the gearbox body through a pin, and an arc-shaped guide groove or a square-shaped guide groove is formed in the guide block and used for limiting and guiding the upper part of the driving block.
Preferably, the electric drive assembly comprises a parking motor arranged in the gearbox box, and a motor shaft of the parking motor is in transmission connection with the trapezoidal screw through a gear pair.
Preferably, the trapezoidal screw is sleeved with a deep groove ball bearing fixedly connected with the gearbox body, one end side face of the deep groove ball bearing is tightly attached to the parking motor, and the other end side face of the deep groove ball bearing is tightly attached to a clamp spring on the trapezoidal screw in a sleeved mode.
Preferably, a limiting block is fixedly arranged on the threaded sleeve, a first limiting groove and a second limiting groove are formed in the limiting block, and a sliding surface is further arranged between the first limiting groove and the second limiting groove; the gearbox body is further fixedly provided with a positioning seat, and the positioning seat can slide on the sliding surface and is clamped in the first limiting groove and the second limiting groove.
Preferably, the screw sleeve is further provided with a bolt hole, and a locking bolt locks the position sensor on the bolt hole.
The beneficial effects of the utility model are mainly embodied in that:
1. the parking motor has a simple structure, and the rotary motion of a motor shaft of the parking motor is converted into linear motion by utilizing the trapezoidal screw and the threaded sleeve, so that the stroke of the actuating assembly is accurately controlled; in addition, the radial occupied space of the locking mechanism can be reduced by only adopting one trapezoidal screw rod, so that the overall layout in the gearbox box body is facilitated;
2. the position sensor monitors in real time during the P-gear shifting process, closed-loop accurate control is performed, and the safety and the stability of parking are improved;
3. the design is ingenious, and the occupied space is small; compared with a mechanical P-gear mechanism, the electric drive type P-gear mechanism is more compact in layout, simpler in part structure and smaller in occupied space. The parking motor can be intelligently controlled, and parking and unlocking can be carried out at any time according to the intention of a driver;
4. security policy protection and intelligent control; compared with a mechanical P-gear mechanism, the electrically-driven P-gear mechanism carries out safety strategy protection, error operation is not needed to be worried about, and the electric-driven P-gear mechanism can be controlled to be higher than a certain vehicle speed and cannot park;
5. the utility is better, and the function is more reliable; compared with a hydraulic P-gear mechanism, the power source of the electric drive type P-gear mechanism is an independent weak current system, is better in functionality than a strong current system, is not easy to lose electricity, is not influenced by a hydraulic system, does not have the congenital defect of hydraulic parking, can perform P parking and P releasing operation according to the intention of a driver at any time, and is more reliable in function.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the structure of the utility model is shown schematically;
FIG. 2: the structure schematic diagram of the middle screw sleeve and the actuating component of the utility model;
FIG. 3: the utility model discloses well electric drive assembly's structural schematic.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, the utility model discloses an electricity drive formula derailleur parking locking mechanism, include parking pawl 1 through 11 pivots of pawl round pin axle setting in the gearbox box, parking pawl 1's the other end is equipped with execution piece 12 rather than integrated into one piece, still establish an inherent reset spring 13 on the parking pawl 1, reset spring 13's the other end with pawl round pin axle 11 is connected, is used for with parking pawl 1 resets.
The design points of the utility model lie in: the transmission is internally provided with only one trapezoidal screw 2, the trapezoidal screw 2 is further provided with a threaded sleeve 4 which is in screw rod transmission with the trapezoidal screw, the threaded sleeve 4 is fixedly provided with an actuating component 5 with a central axis coaxial with the central axis of the trapezoidal screw 2, and the actuating component 5 can apply pressing force to the actuating block 12 to clamp the actuating block 12 on a parking ratchet wheel meshed with the actuating block. The parking motor has the advantages that the structure is ingenious, the rotating motion of the motor shaft of the parking motor is converted into linear motion by the aid of the trapezoidal screw and the threaded sleeve, and accordingly the stroke of the actuating assembly is accurately controlled. Compared with the prior art, the precision adjustment in the prior art is controlled by the rotation angle of the parking axle, so that the precision adjustment is not necessarily accurate enough. In addition, the radial occupied space of the locking mechanism can be reduced by only adopting one trapezoidal screw rod, and the integral layout in the gearbox box body is convenient.
Specifically, the actuating assembly 5 comprises a driving rod 51 fixedly arranged on the threaded sleeve 4 and coaxial with the trapezoidal screw 2, a limiting lug 52 and a fixed lug 53 are fixedly arranged on the driving rod 51, a driving block 54 and an actuating spring 55 are further arranged between the limiting lug 52 and the fixed lug 53 and sleeved on the driving rod 51, one end of the actuating spring 55 is tightly attached to the limiting lug 52, the other end of the actuating spring is fixedly connected to the driving block 54, and a driving surface 56 of the driving block 54 can be tightly attached to the actuating block 12. Compared with the prior art, the utility model discloses a drive block 54 presses execution piece 12 for in execution piece 12 card to the parking ratchet wheel, realize the parking, it is reliable to connect between this structure, thereby improves whole parking locking mechanism's brake performance.
Further, a guide block 58 is fixedly arranged on the gearbox body through a pin 57, and an arc-shaped guide groove or a square-shaped guide groove is formed in the guide block 58 and used for limiting and guiding the upper portion of the driving block 54. The arc-shaped guide groove or the square guide groove on the guide block 58 is designed, so that the wear resistance is better, and the self-locking safety is more reliable.
The utility model discloses in, a stopper 41 has set firmly on the swivel nut 4, be equipped with first spacing groove 42 and second spacing groove 43 on the stopper 41, still be equipped with the planing surface 44 between first spacing groove 42 and the second spacing groove 43. A positioning seat 45 is further fixedly arranged on the gearbox body, and the positioning seat 45 can slide on the sliding surface 44 and is clamped in the first limiting groove 42 and the second limiting groove 43. The first limiting groove 42 and the second limiting groove 43 are arranged to limit the movement of the threaded sleeve 4 when the movement is abnormal, so that the parking function is prevented from being failed.
Furthermore, a bolt hole 47 is formed in the screw sleeve 4, and a locking bolt 48 locks the position sensor 46 on the bolt hole 47. The position sensor 46 can monitor the screw sleeve 4 in real time, and perform closed-loop accurate control, so that the parking safety and stability are improved.
The utility model discloses an another design point lies in: the one end of trapezoidal screw 2 is connected in rather than coaxial electric drive subassembly 3 that sets up, electric drive subassembly 3 is including setting up the parking motor 31 in the gearbox box, the motor shaft of parking motor 31 pass through the gear pair with trapezoidal screw 2 transmission is connected, and this transmission connection structure is prior art, therefore does not do too much and describe here. The trapezoidal screw rod 2 is sleeved with a deep groove ball bearing 32 fixedly connected with the gearbox body, one end side face of the deep groove ball bearing 32 is tightly attached to the parking motor 31, and the other end side face of the deep groove ball bearing is tightly attached to a clamp spring 33 on the trapezoidal screw rod 2.
In the embodiment, the structure is compact, the design is ingenious, and the occupied space is small. Compared with a mechanical P-gear mechanism, the electric drive type P-gear mechanism is more compact in layout, simpler in part structure and smaller in occupied space. The parking motor can be intelligently controlled, and parking and unlocking can be carried out at any time according to the intention of a driver. And (4) safety policy protection and intelligent control. Compared with a mechanical P-gear mechanism, the electrically-driven P-gear mechanism carries out safety strategy protection, error operation is not needed to be worried about, and the electric-driven P-gear mechanism can be controlled to be larger than a certain vehicle speed and cannot park. The utility is better, and the function is more reliable. Compared with a hydraulic P-gear mechanism, the power source of the electric drive type P-gear mechanism is an independent weak current system, is better in functionality than a strong current system, is not easy to lose electricity, is not influenced by a hydraulic system, does not have the congenital defect of hydraulic parking, can perform P parking and P releasing operation according to the intention of a driver at any time, and is more reliable in function.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The parking locking mechanism of the electric drive type transmission comprises a parking pawl (1) which is arranged in a gearbox box body through a pawl pin shaft (11) in a pivot mode, wherein an execution block (12) which is integrally formed with the parking pawl (1) is arranged at the other end of the parking pawl (1), a reset spring (13) is further arranged on the parking pawl (1), and the other end of the reset spring (13) is connected with the pawl pin shaft (11); the method is characterized in that: the gearbox is internally provided with only one trapezoidal screw (2), and one end of the trapezoidal screw (2) is connected with an electric drive component (3) which is coaxially arranged with the trapezoidal screw; the trapezoidal screw (2) is further provided with a screw sleeve (4) which is in screw rod transmission with the trapezoidal screw, an actuating component (5) with a central axis coaxial with the central axis of the trapezoidal screw (2) is fixedly arranged on the screw sleeve (4), and the actuating component (5) can apply pressing force to the actuating block (12) to enable the actuating block (12) to be clamped on a parking ratchet wheel meshed with the actuating block.
2. The electrically driven transmission park lock mechanism of claim 1, wherein: the actuating assembly (5) comprises a driving rod (51) which is fixedly arranged on the threaded sleeve (4) and coaxial with the trapezoidal screw rod (2), a limiting lug (52) and a fixed pier head (53) are fixedly arranged on the driving rod (51), a driving block (54) and an actuating spring (55) which are sleeved on the driving rod (51) are further arranged between the limiting lug (52) and the fixed pier head (53), one end of the actuating spring (55) is tightly attached to the limiting lug (52), and the other end of the actuating spring is fixedly connected with the driving block (54); the drive surface (56) of the drive block (54) can be in close contact with the actuator block (12).
3. The electrically driven transmission park lock mechanism of claim 2, wherein: the gearbox body is further fixedly provided with a guide block (58) through a pin (57), and the guide block (58) is provided with an arc-shaped guide groove or a square-shaped guide groove for limiting and guiding the upper part of the driving block (54).
4. The electrically driven transmission park lock mechanism of claim 1, wherein: the electric drive assembly (3) comprises a parking motor (31) arranged in the gearbox box body, and a motor shaft of the parking motor (31) is in transmission connection with the trapezoidal screw rod (2) through a gear pair.
5. The electrically driven transmission park lock mechanism of claim 4, wherein: the cover is equipped with on trapezoidal screw rod (2) with deep groove ball bearing (32) of gearbox box rigid coupling, the one end side of deep groove ball bearing (32) with parking motor (31) are hugged closely, and the other end side is established with the cover and is established jump ring (33) on trapezoidal screw rod (2) are hugged closely.
6. The electrically driven transmission park lock mechanism of claim 4, wherein: a limiting block (41) is fixedly arranged on the threaded sleeve (4), a first limiting groove (42) and a second limiting groove (43) are formed in the limiting block (41), and a sliding surface (44) is arranged between the first limiting groove (42) and the second limiting groove (43); the gearbox body is further fixedly provided with a positioning seat (45), and the positioning seat (45) can slide on the sliding surface (44) and is clamped in the first limiting groove (42) and the second limiting groove (43).
7. The electrically-driven transmission parking lock mechanism according to any one of claims 1 to 6, characterized in that: the threaded sleeve (4) is further provided with a bolt hole (47), and a locking bolt (48) locks the position sensor (46) on the bolt hole (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020486169.3U CN212360752U (en) | 2020-04-07 | 2020-04-07 | Parking locking mechanism of electric drive type transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020486169.3U CN212360752U (en) | 2020-04-07 | 2020-04-07 | Parking locking mechanism of electric drive type transmission |
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| Publication Number | Publication Date |
|---|---|
| CN212360752U true CN212360752U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020486169.3U Active CN212360752U (en) | 2020-04-07 | 2020-04-07 | Parking locking mechanism of electric drive type transmission |
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| CN (1) | CN212360752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685542A (en) * | 2021-08-27 | 2021-11-23 | 坤泰车辆系统（常州）有限公司 | Hydraulic drive parking locking mechanism, parking system and gearbox |
-
2020
- 2020-04-07 CN CN202020486169.3U patent/CN212360752U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685542A (en) * | 2021-08-27 | 2021-11-23 | 坤泰车辆系统（常州）有限公司 | Hydraulic drive parking locking mechanism, parking system and gearbox |
| CN113685542B (en) * | 2021-08-27 | 2023-01-31 | 坤泰车辆系统（常州）有限公司 | Hydraulic drive parking locking mechanism, parking system and gearbox |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.368 Longjin Road, Changzhou City, Jiangsu Province 213000 Patentee after: Kuntai vehicle system (Changzhou) Co.,Ltd. Address before: No.368 Longjin Road, Changzhou City, Jiangsu Province 213000 Patentee before: KUNTYE VEHICLE SYSTEM (CHANGZHOU) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |