CN212407536U

CN212407536U - Novel electronic gear shifting execution structure

Info

Publication number: CN212407536U
Application number: CN202020974209.9U
Authority: CN
Inventors: 王永强
Original assignee: Ningbo Zhenglang Auto Parts Co ltd
Current assignee: Ningbo Zhenglang Auto Parts Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-01-26
Anticipated expiration: 2030-06-01

Abstract

The utility model relates to an automotive electronics executor technical field that shifts specifically is a novel electron execution structure that shifts. The utility model provides a novel electron execution structure of shifting, including casing and last casing down, be equipped with control circuit board and speed reduction subassembly down between casing and the last casing, speed reduction subassembly includes DC motor, one-level reduction gear, second grade reduction gear, tertiary reduction gear, level four reduction gear and gear shifting shaft adaptor, one-level reduction gear is connected with DC motor, second grade reduction gear and one-level reduction gear meshing, tertiary reduction gear and second grade reduction gear meshing, level four reduction gear and tertiary reduction gear meshing, gear shifting shaft adaptor and level four reduction gear meshing, reach the purpose of enlargiing DC motor torque through level four gear reduction, drive gearbox shifts. The utility model discloses an useful part: the structure design is compact, the volume is small, the number of parts is small, the weight of the product is light, and the cost is low.

Description

Novel electronic gear shifting execution structure

Technical Field

The utility model relates to an automotive electronics executor technical field that shifts specifically is a novel electron execution structure that shifts.

Background

Due to the demands of space saving, weight reduction, driving comfort improvement and artificial intelligence driving, more and more vehicles use a full electronic gear shifting system to replace a traditional mechanical gear shifting system. The system mainly comprises an electronic gear shifter, a gearbox control module and an electronic gear shifting execution structure.

At present, a gear shifting execution structure used in an automobile electronic gear shifting mechanism mostly adopts a machined metal gear, so that the parts are high in machining and manufacturing cost, large in number of parts and high in assembly difficulty, and low-cost mass production is not facilitated; in order to increase the reduction ratio and increase the output torque, a worm gear and a worm are used for reducing the speed in many designs, so that the transmission efficiency is reduced, and a high-power motor or even double motors are used; most actuators are bulky and heavy, requiring additional metal mounting brackets for securing and mounting.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned current electron and shift and carry out structure processing manufacturing cost height, transmission efficiency hangs down, the big technical problem of volume and weight, the utility model provides a novel electron shifts and carries out structure.

The technical scheme of the utility model as follows:

the utility model provides a novel electron execution structure of shifting, including casing and last casing down, be equipped with control circuit board and speed reduction subassembly down between casing and the last casing, speed reduction subassembly includes DC motor, one-level reduction gear, second grade reduction gear, tertiary reduction gear, level four reduction gear and gear shifting shaft adaptor, one-level reduction gear is connected with DC motor, second grade reduction gear and one-level reduction gear meshing, tertiary reduction gear and second grade reduction gear meshing, level four reduction gear and tertiary reduction gear meshing, gear shifting shaft adaptor and level four reduction gear meshing, reach the purpose of enlargiing DC motor torque through level four gear reduction, drive gearbox shifts.

The speed reducing assembly comprises a gear support, the direct current motor is connected with the gear support, the second-stage speed reducing gear is movably connected with the gear support through a gear shaft, the third-stage speed reducing gear and the fourth-stage speed reducing gear are movably connected with the gear support, and the gear shifting shaft adapter is movably installed between the lower shell and the upper shell.

The side face of the gear support is provided with a gear shaft, the second-stage reduction gear is sleeved on the gear shaft, the outer ring of the second-stage reduction gear and the inner ring of the second-stage reduction gear form a gear part, the gear part of the outer ring is meshed with the first-stage reduction gear, and the gear part of the inner ring is meshed with the third-stage reduction gear.

The gear part of the inner ring of the secondary reduction gear is designed into helical teeth, and the gear part at the upper part of the tertiary reduction gear meshed with the secondary reduction gear is designed into helical teeth.

The gear support is provided with a mounting position for mounting a third-level reduction gear and a fourth-level reduction gear, and the middle parts of the third-level reduction gear and the fourth-level reduction gear are mounted in the mounting position.

Tertiary reduction gear and level four reduction gear pass through gear bush and magnet support movable mounting in the installation position, and the gear bush sets up between tertiary reduction gear and level four reduction gear and installation position, and gear bush and magnet support pass through buckle structure and tertiary reduction gear and level four reduction gear be connected.

The lower shell and the upper shell are provided with rotating shaft mounting holes, one end of the gear shifting shaft adapter is protruded to form a rotating shaft, and the rotating shaft is inserted into the rotating shaft mounting holes.

Gear parts are formed on the upper portion and the lower portion of the third-level reduction gear, gear parts are formed on the upper portion and the lower portion of the fourth-level reduction gear, a gear part is formed at one end of the gear shifting shaft adapter, the upper gear part of the third-level reduction gear is meshed with the second-level reduction gear, the lower gear part of the third-level reduction gear is meshed with the lower gear part of the fourth-level reduction gear, and the upper gear part of the fourth-level reduction gear is.

By using the technical scheme of the utility model, the structure is novel, the design is ingenious, the gear can be produced by the process mode of injection molding or die casting, the mechanical processing is not needed, and the low-cost large-scale production mode is favorably realized; the core component adopts a modular design, can be suitable for different automobile surrounding environments, and has low repeated development rate; four-stage gear reduction is adopted, and a worm gear is not arranged, so that the transmission efficiency and the performance are greatly improved; the structure design is compact, the volume is small, the number of parts is small, the weight of the product is light, and the cost is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a schematic structural view of the speed reduction assembly of the present invention;

fig. 4 is a schematic view of a part of the structure of the speed reducing assembly of the present invention;

figure 5 is a schematic structural view of the speed reduction assembly of the present invention;

fig. 6 is a schematic structural view of the dc motor and the primary reduction gear of the present invention;

fig. 7 is a schematic structural view of the two-stage reduction gear of the present invention;

fig. 8 is a schematic structural view of the three-stage reduction gear of the present invention;

fig. 9 is a schematic structural view of the shift shaft adaptor of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The novel electronic gear shifting execution structure shown in fig. 1-9 comprises a lower shell 1 and an upper shell 2, wherein a control circuit board 3 and a speed reduction assembly are arranged between the lower shell 1 and the upper shell 2, the speed reduction assembly comprises a gear bracket 10, a direct current motor 4, a first-stage reduction gear 5, a second-stage reduction gear 6, a third-stage reduction gear 7, a fourth-stage reduction gear 8 and a gear shifting shaft adaptor 9, the direct current motor 4 is fixedly arranged in the motor bracket on the side surface of the gear bracket 10, the second-stage reduction gear 6 is movably connected with the gear bracket 10 through a gear shaft, the side surface of the gear bracket 10 is provided with a gear shaft, the second-stage reduction gear 6 is sleeved on the gear shaft, the second-stage reduction gear 6 can smoothly rotate on the gear shaft, the third-stage reduction gear 7 and the fourth-stage reduction gear 8 are movably connected with the gear bracket 10, the gear bracket 10, the middle parts of a third-level reduction gear 7 and a fourth-level reduction gear 8 are arranged in an installation position 14, the third-level reduction gear 7 and the fourth-level reduction gear 8 are movably arranged in the installation position 14 through a gear bush 11 and a magnet support 12, the gear bush 11 is arranged between the third-level reduction gear 7 and the fourth-level reduction gear 8 and the installation position 14, the gear bush 11 is sleeved outside the third-level reduction gear 7 and the fourth-level reduction gear 8, the gear bush 11 and the magnet support 12 are connected with the third-level reduction gear 7 and the fourth-level reduction gear 8 through a buckle structure, the whole gear bush 11 is in a circular ring shape, one end of the gear bush 11 is provided with 3 clamping heads which are uniformly distributed, the middle part of one end of the third-level reduction gear 7 and the fourth-level reduction gear 8 is provided with a clamping groove which is matched with the clamping heads, the gear bush 11 is sleeved outside the third-level reduction gear 7 and the, one end of a magnet support 12 is provided with 3 chucks which are uniformly distributed, the edge of one end of a third-level reduction gear 7 and a fourth-level reduction gear 8 is provided with a clamping groove which is matched with the chucks, the chucks of the magnet support 12 are clamped into the clamping groove at the edge for fixing, the main body of the magnet support 12 outwards supports and fixes the chucks of a gear bush 11 to prevent the chucks of the gear bush 11 from falling off due to retraction, a gear shift shaft adapter 9 is movably arranged between a lower shell 1 and an upper shell 2, a rotating shaft mounting hole 13 is arranged on the lower shell 1 and the upper shell 2, the upper end and the lower end of one end of the gear shift shaft adapter 9 protrude to form a rotating shaft, the rotating shaft is inserted into the rotating shaft mounting hole 13, the gear shift shaft adapter 9 is movably arranged between the lower shell 1 and the upper shell 2, the gear shift shaft adapter 9 rotates in the transverse direction by taking the rotating shaft as the center, the reduction assembly is assembled into a, the lower shell 1 is also provided with a mounting opening for fixed connection. The gear bush 11 is made of a wear-resistant material having a self-lubricating property, reducing friction and improving durability. The buckle type assembly is simple and easy, and automatic line assembly is easy to realize.

The utility model relates to a concentrate most gears and motor and assemble earlier on gear support 10, form a core subassembly module, pack this subassembly into down casing 1 and last casing 2 again, realize the full automatization of assembly very easily like this, and because whole speed reduction subassembly is a modular design from an organic whole, when motor transmission's all ring edge borders changes, only need change down casing 1 and last casing 2's size and shape, this subassembly just can be applicable to different motorcycle types and gearbox. A plurality of existing electronic gear shifting actuators are all formed by adopting a single gear or a gear pair to be scattered in a shell one by one in a loose mode, so that the requirement on the manufacturing precision of the shell is high, the assembly process is complex, and when the design of the shell changes every time, the characteristics of the mechanism are possibly influenced, and the electronic gear shifting actuators need to be tested and verified again, so that the electronic gear shifting actuators do not accord with the modularized design characteristics.

The first-stage reduction gear 5 is connected with the direct current motor 4, the first-stage reduction gear 5 is fixedly installed on a rotor of the direct current motor 4, the direct current motor 4 is transversely arranged, the first-stage reduction gear 5 is longitudinally arranged, the second-stage reduction gear 6 is longitudinally arranged, a gear part is formed by the outer ring and the inner ring of the second-stage reduction gear 6, a gear part is formed by the upper part and the lower part of the third-stage reduction gear 7, and a gear part is formed by the upper part and the lower part of the fourth-stage reduction gear 8. in the utility model, the upper part and the lower part are defined by the installation orientation of the third-stage reduction gear 7 and the fourth-stage reduction gear 8, the gear part on the upper part of the third-stage reduction gear 7 is meshed with the gear part on the inner ring of the second-stage reduction gear 6, the gear part, an arc gear part is formed at one end of the gear shifting shaft adapter part 9, the gear part at the upper part of the four-stage reduction gear 8 is meshed with the gear part of the gear shifting shaft adapter part 9, the purpose of amplifying the torque of the direct current motor 4 is achieved through the speed reduction of the four-stage gear, and the gearbox is driven to shift.

The utility model relates to an arrange the compactness, realized level four gear reduction in minimum space, all adopt efficient gear drive mode moreover, level four driven total efficiency can reach about 90%, can obtain great moment of torsion output with the motor of less moment of torsion, and unlike current electron shift actuator for compression design space, adopted the worm gear transmission of inefficiency, had to adopt the motor of big moment of torsion.

The utility model provides a whole gears, including other parts of execution structure, all can produce with the technology mode of moulding plastics or die-casting, need not to carry out machining, be favorable to realizing low-cost large-scale production mode, need not to use machining process almost all unlike the gear of the executor of shifting of current electron on the existing market, and the gear can be according to the needs of matching the environment, adopt high strength high temperature plastics as far as, with reduce running noise and cost of manufacture, perhaps adopt the zinc-aluminium alloy die-casting of high strength, with the requirement that satisfies the electronic execution structure big output torque of shifting.

During the use, control circuit board 3 receives the signal of shifting that the electron selector sent, and DC motor 4 moves, drives one-level reduction gear 5 and rotates, amplifies DC motor 4's moment of torsion through four-stage gear transmission, then accomplishes the action of shifting through the pivot drive gearbox of selector shaft adaptor 9 one end.

It should be understood that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the art can add, subtract, replace, change or modify the above-mentioned embodiments within the spirit and principle of the present invention, and all such additions, substitutions, changes or modifications should fall within the scope of the appended claims.

Claims

1. A novel electronic gear shifting execution structure comprises a lower shell (1) and an upper shell (2), and is characterized in that: be equipped with control circuit board (3) and speed reduction subassembly down between casing (1) and last casing (2), speed reduction subassembly includes DC motor (4), one-level reduction gear (5), second grade reduction gear (6), tertiary reduction gear (7), level four reduction gear (8) and selector shaft adaptor (9), one-level reduction gear (5) are connected with DC motor (4), second grade reduction gear (6) and one-level reduction gear (5) meshing, tertiary reduction gear (7) and second grade reduction gear (6) meshing, level four reduction gear (8) and tertiary reduction gear (7) meshing, selector shaft adaptor (9) and level four reduction gear (8) meshing, reach the purpose of enlargiing DC motor (4) torque through level four gear reduction, the drive gearbox shifts.

2. The novel electronic shift actuation structure according to claim 1, characterized in that: the speed reducing assembly comprises a gear support (10), a direct current motor (4) is connected with the gear support (10), a second-stage speed reducing gear (6) is movably connected with the gear support (10) through a gear shaft, a third-stage speed reducing gear (7) and a fourth-stage speed reducing gear (8) are movably connected with the gear support (10), and a gear shifting shaft adapter (9) is movably installed between the lower shell (1) and the upper shell (2).

3. The novel electronic shift actuation structure according to claim 2, characterized in that: the side face of the gear support (10) is provided with a gear shaft, the second-stage reduction gear (6) is sleeved on the gear shaft, the outer ring and the inner ring of the second-stage reduction gear (6) form a gear part, the outer ring gear part is meshed with the first-stage reduction gear (5), and the inner ring gear part is meshed with the third-stage reduction gear (7).

4. The novel electronic shift actuation structure according to claim 3, characterized in that: the gear part of the inner ring of the secondary reduction gear (6) is designed into helical teeth, and the gear part of the upper part of the tertiary reduction gear (7) meshed with the secondary reduction gear is designed into helical teeth.

5. The novel electronic shift actuation structure according to claim 2, characterized in that: the gear support (10) is provided with a mounting position (14) for mounting the three-stage reduction gear (7) and the four-stage reduction gear (8), and the middle parts of the three-stage reduction gear (7) and the four-stage reduction gear (8) are mounted in the mounting position (14).

6. The novel electronic shift actuation structure according to claim 5, characterized in that: the three-stage reduction gear (7) and the four-stage reduction gear (8) are movably mounted in a mounting position (14) through a gear bush (11) and a magnet support (12), the gear bush (11) is arranged between the three-stage reduction gear (7) and the four-stage reduction gear (8) and the mounting position (14), and the gear bush (11) and the magnet support (12) are connected with the three-stage reduction gear (7) and the four-stage reduction gear (8) through a buckling structure.

7. The novel electronic shift actuation structure according to claim 2, characterized in that: the gear shifting shaft is characterized in that a rotating shaft mounting hole (13) is formed in the lower shell (1) and the upper shell (2), one end of the gear shifting shaft adapter (9) protrudes to form a rotating shaft, and the rotating shaft is inserted into the rotating shaft mounting hole (13).

8. The novel electronic shift actuation structure according to claim 1, characterized in that: gear parts are formed on the upper part and the lower part of the three-level reduction gear (7), gear parts are formed on the upper part and the lower part of the four-level reduction gear (8), a gear part is formed at one end of the gear shifting shaft adapter (9), the upper gear part of the three-level reduction gear (7) is meshed with the second-level reduction gear (6), the lower gear part of the three-level reduction gear (7) is meshed with the lower gear part of the four-level reduction gear (8), and the upper gear part of the four-level reduction gear (8) is meshed with the gear part of the gear.