CN111577886A - Novel electronic gear shifting execution structure - Google Patents
Novel electronic gear shifting execution structure Download PDFInfo
- Publication number
- CN111577886A CN111577886A CN202010483911.XA CN202010483911A CN111577886A CN 111577886 A CN111577886 A CN 111577886A CN 202010483911 A CN202010483911 A CN 202010483911A CN 111577886 A CN111577886 A CN 111577886A
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- Prior art keywords
- gear
- reduction gear
- level
- reduction
- stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/203—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with non-parallel axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H2061/2892—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted other gears, e.g. worm gears, for transmitting rotary motion to the output mechanism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
- F16H2061/326—Actuators for range selection, i.e. actuators for controlling the range selector or the manual range valve in the transmission
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention relates to the technical field of automotive electronic gear shifting actuators, in particular to a novel electronic gear shifting executing structure. 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 invention has the advantages that: 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
Technical Field
The invention relates to the technical field of automotive electronic gear shifting actuators, in particular to a novel electronic gear shifting executing structure.
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.
Disclosure of Invention
In order to solve the technical problems of high processing and manufacturing cost, low transmission efficiency and large volume and weight of the conventional electronic gear shifting execution structure, the invention provides a novel electronic gear shifting execution structure.
The technical scheme of the invention is 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 invention, the structure is novel, the design is ingenious, the gear can be produced by using an injection molding or die casting process mode, 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 view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic illustration of the construction of the speed reduction assembly of the present invention;
figure 4 is a schematic view of a portion of the construction of the speed reduction assembly of the present invention;
FIG. 5 is a schematic illustration of the construction of the speed reduction assembly of the present invention;
FIG. 6 is a schematic view of the DC motor and a primary reduction gear of the present invention;
FIG. 7 is a schematic view of the construction of the two stage reduction gear of the present invention;
FIG. 8 is a schematic view of the construction of the three stage reduction gear of the present invention;
fig. 9 is a schematic structural view of the shift shaft adapter of the present invention.
Detailed Description
The invention will be further explained with reference to the 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.
According to the invention, most of gears and motors are firstly assembled on the gear support 10 in a centralized manner to form a core component module, and then the component is installed in the lower shell 1 and the upper shell 2, so that the full automation of assembly is easily realized, and the whole speed reducing component is in a self-integrated modular design, so that when the surrounding environment of the automobile gearbox is changed, the component can be suitable for different automobile types and gearboxes only by changing the size and the shape of the lower shell 1 and the upper shell 2. 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 arranged 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, the gear part is formed by the outer ring and the lower part of the third-stage reduction gear 7, the gear part is formed by the upper part and the lower part of the fourth-stage reduction gear 8, the upper part and the lower part of the third-stage reduction gear 7 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, 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 invention has compact design and arrangement, realizes four-stage gear reduction in a tiny space, adopts a high-efficiency gear transmission mode, has the total efficiency of four-stage transmission reaching about 90 percent, can obtain larger torque output by using a motor with smaller torque, and does not need to adopt a motor with large torque in order to compress the design space by adopting low efficiency worm and gear transmission in the prior electronic gear shifting actuator.
All gears in the invention, including other parts of the execution structure, can be produced by a process mode of injection molding or die casting, without machining, which is beneficial to realizing a low-cost large-scale production mode, unlike the prior electronic gear shift actuator in the market which almost needs to use a machining process, and the gears can adopt high-strength high-temperature plastics as far as possible according to the requirement of matching environment to reduce the running noise and the manufacturing cost, or adopt high-strength zinc-aluminum alloy die casting to meet the requirement of large output torque of the electronic gear shift execution structure.
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 merely preferred examples of the present invention, and not restrictive, but rather, all the changes, substitutions, alterations and modifications that come within the spirit and scope of the invention as described above may be made by those skilled in the art, and all the changes, substitutions, alterations and modifications that fall within the scope of the appended claims should be construed as being included in the present invention.
Claims (8)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483911.XA CN111577886A (en) | 2020-06-01 | 2020-06-01 | Novel electronic gear shifting execution structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010483911.XA CN111577886A (en) | 2020-06-01 | 2020-06-01 | Novel electronic gear shifting execution structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111577886A true CN111577886A (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010483911.XA Pending CN111577886A (en) | 2020-06-01 | 2020-06-01 | Novel electronic gear shifting execution structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111577886A (en) |
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2020
- 2020-06-01 CN CN202010483911.XA patent/CN111577886A/en active Pending
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