CN211778779U - Two-gear speed change mechanism of electric vehicle - Google Patents
Two-gear speed change mechanism of electric vehicle Download PDFInfo
- Publication number
- CN211778779U CN211778779U CN201921380788.8U CN201921380788U CN211778779U CN 211778779 U CN211778779 U CN 211778779U CN 201921380788 U CN201921380788 U CN 201921380788U CN 211778779 U CN211778779 U CN 211778779U
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- gear
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- driven
- output shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000009194 climbing Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 108090000565 Capsid Proteins Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/10—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses an electric motor car keeps off speed change mechanism two, including output shaft (1) and input shaft (5), keep off on input shaft (5) drive tooth (10) and keep off driven tooth (11) meshing one, keep off driven tooth (11) and install on output shaft (1) through one-way clutch (12), keep off driven tooth (11) side and have one to keep off and combine tooth (9), keep off through gear sleeve (7) control one and combine tooth (9) and gear hub (8) whether transmission shifts, gear hub (8) are installed on output shaft (1) of shifting. The mechanism can increase the climbing capability of the vehicle, improve the driving mileage of the vehicle, shorten the power interruption time by 50 percent during gear shifting, improve the gear shifting quality and improve the performance of the whole vehicle.
Description
Technical Field
The invention relates to a two-gear speed change mechanism for an electric vehicle, which is used for a pure electric vehicle and a hybrid electric vehicle.
Background
At present, most pure electric passenger vehicles and light logistics vehicles at home and abroad use mechanical reducers with fixed transmission ratios, the transmission mode has simple structure and low cost, but the vehicles need to run on different roads and under different load conditions at any time, the driving motors can be frequently driven to work under the condition of low efficiency due to the fixed speed ratio, the endurance mileage of the vehicles is adversely affected, a small number of pure electric vehicles adopt transmissions, but the pure electric vehicles have the defects of power interruption, gear shifting quality and the like, and the pure electric vehicles are not popularized yet.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the two-gear speed change mechanism for the electric vehicle is provided for various different vehicle types using a mechanical speed reducer with a fixed transmission ratio. The overrunning characteristic of the one-way clutch is utilized to realize automatic separation and engagement, so that the gear shifting quality is improved, and fifty percent of power interruption time can be reduced, thereby providing hardware support for improving the dynamic property of the whole vehicle and prolonging the cruising ability.
The invention adopts the following technical scheme:
the utility model provides an electric motor car keeps off speed change mechanism two, includes output shaft and input shaft, keeps off the meshing of initiative tooth and one fender driven tooth on the input shaft, and one keeps off driven tooth and installs on the output shaft through one-way clutch, and one keeps off driven flank and has one to keep off and combine the tooth, and whether keep off through the gear cover control of shifting and combine the tooth and shift the tooth hub and whether transmit, the tooth hub of shifting is installed on the output shaft.
The suit keeps off driven tooth on the output shaft, keeps off driven tooth and the epaxial two of input and keeps off the initiative tooth meshing, and two driven flank have two to keep off and combine the tooth, and through the gear sleeve control that shifts two keep off and combine the tooth and shift the tooth hub and whether transmit.
The main speed reduction driving teeth on the output shaft are meshed with the main speed reduction driven teeth of the differential assembly.
The first gear driven teeth and the second gear driven teeth are respectively positioned on two sides of the gear shifting gear hub, the first gear driven teeth are sleeved on the output shaft in a hollow mode, the second gear driven teeth are installed on the outer ring of the one-way clutch, and the inner ring of the one-way clutch is installed on the output shaft.
The first gear driven tooth and the second gear driven tooth are respectively provided with a step on the side surface close to the gear shifting gear hub and are respectively used for fixedly mounting a first gear combination tooth and a second gear combination tooth.
When the gear shifting gear sleeve is positioned in the middle position, the gear shifting gear hub has no transmission relation with the first-gear driven gear and the second-gear driven gear; when the gear shifting gear sleeve is shifted to the left side, the left side of the gear shifting gear sleeve is meshed with a first gear combining tooth of a first gear driven tooth, and the right side of the gear shifting gear sleeve is meshed with a gear shifting gear hub; when the gear shifting gear sleeve is shifted to the right side, the right side of the gear shifting gear sleeve is meshed with the second gear combination teeth of the second gear driven teeth, and the left side of the gear shifting gear sleeve is meshed with the gear shifting gear hub.
The structure is installed between procapsid and back casing, installs electric gear shift mechanism and keeps off a position sensor on the back casing.
The transmission is used for the electric vehicle.
The invention has the beneficial effects that:
brief introduction to Shift Process
The vehicle shifts two gears from the first gear shown in figure 2 during running, the invention does not need the gear-off process any more, and the gear can be engaged only by reducing the torque and regulating the speed of the motor, so the power interruption time is reduced by 50 percent.
When the vehicle shifts from the second gear shown in figure 3 to the first gear in the running process, the invention can realize gear shifting only by lowering the torque of the motor and disengaging the gear, and moving the gear shifting gear sleeve 7 from the left position shown in figure 3 to the middle position shown in figure 2, so that the power interruption time can be reduced by 50 percent.
The invention can increase the climbing capability of the vehicle, improve the driving mileage of the vehicle, shorten the power interruption time by 50 percent during gear shifting, improve the gear shifting quality and improve the performance of the whole vehicle, has positive significance for the popularization of new energy vehicles, and is worthy of popularization and application.
Drawings
Fig. 1 is a schematic view of a two-speed transmission mechanism.
Fig. 2 is a schematic diagram of a two-speed transmission mechanism in one gear position.
FIG. 3 is a schematic diagram of the two speed shift mechanism in a reverse position.
Fig. 4 is a schematic overall appearance diagram of the transmission.
Detailed Description
The first embodiment is as follows: the embodiment is a speed change mechanism capable of realizing first-gear transmission and reverse gear transmission, and comprises an output shaft 1 and an input shaft 5, wherein a first-gear driving tooth 10 on the input shaft 5 is meshed with a first-gear driven tooth 11, the first-gear driven tooth 11 is installed on the output shaft 1 through a one-way clutch 12, a first-gear combining tooth 9 is arranged on the side surface of the first-gear driven tooth 11, the first-gear combining tooth 9 and a gear shifting gear hub 8 are controlled to be in transmission or not through a gear shifting gear sleeve 7, and the gear shifting gear hub 8 is installed on the output shaft 1.
When the gear shift sleeve 7 is only engaged with the gear shift hub 8, the output torque of the driving motor is transmitted to the differential assembly 15 through the input shaft 5, the input shaft one-gear driving teeth 10, the output shaft one-gear driven teeth 11, the one-way clutch 12, the one-way clutch inner ring 13, the output shaft 1, the main speed reduction driving teeth 2 and the main speed reduction driven teeth 14.
When the gear shifting sleeve 7 is located at the right position, the output torque of the driving motor is transmitted to the differential assembly 15 through the input shaft 5, the input shaft first-gear driving teeth 10, the output shaft first-gear driven teeth 11, the first-gear engaging teeth 9, the gear shifting sleeve 7, the gear shifting hub 8, the output shaft 1, the main speed reduction driving teeth 2 and the main speed reduction driven teeth 14, which is also a first-gear transmission condition, but the driving motor can transmit forward and reverse rotation at the moment, so that the driving motor can realize reverse gear transmission at the position.
Example two: the embodiment is a two-gear speed change mechanism for an electric vehicle or a hybrid electric vehicle, and the two-gear speed change mechanism is provided with a first-gear, a second-gear and a reverse gear transmission structure.
The input shaft 5 is provided with a first gear driving tooth 10 and a second gear driving tooth 4. The output shaft 1 is provided with a first-gear driven gear 11, a second-gear driven gear 3, a gear shifting hub 8 and a main speed reduction driving gear 2. The gear shifting gear hub 8 is fixedly arranged on the output shaft 1, the main speed reduction driving gear 2 is fixedly connected to the output shaft 1, the second gear driven gear 3 is sleeved on the output shaft 1 in an empty mode, the inner ring of the first gear driven gear 11 is connected with the outer ring of the one-way clutch 12, and the inner ring 13 of the one-way clutch is fixedly arranged on the output shaft 1. A step is arranged between the inner ring and the outer ring of the first-gear driven gear 11 and the second-gear driven gear 3, the steps are close to the gear shifting hub 8, a first-gear combining gear 9 is mounted on the step on the inner side of the first-gear driven gear 11, and a second-gear combining gear 6 is mounted on the step on the inner side of the second-gear driven gear 3. Two keep off combination tooth 6, one keep off combination tooth 9 and the tooth hub 8 three external diameter of shifting the same, the cover has the tooth cover 7 of shifting on the tooth hub 8 of shifting.
The first-gear driving tooth 10 is meshed with the first-gear driven tooth 11, the first-gear driven tooth 11 is installed on the output shaft 1 through the one-way clutch 12, whether the first-gear combination tooth 9 and the shifting gear hub 8 are in transmission or not is controlled through the shifting gear sleeve 7, and the shifting gear hub 8 is installed on the output shaft 1. Two keep off driven tooth 3 and the meshing of two fender driving tooth 6 on the input shaft 5, two keep off driven tooth 3 side and have two to keep off and combine tooth 6, through gear shifting tooth cover 7 control two keep off and combine tooth 6 and gear shifting tooth hub 8 and whether transmit.
The main reducing driving teeth 2 on the output shaft 1 are meshed with the main reducing driven teeth 14 of the differential assembly 15.
The structure is mounted between a front housing 18 and a rear housing 19, with the rear housing 19 having the electric shift mechanism 16 and the gear sensor 17 mounted thereon.
As shown in fig. 2: when the gear shift sleeve 7 is in the intermediate position, the output torque of the driving motor is transmitted to the differential assembly 15 through the input shaft 5, the input shaft first gear driving teeth 10, the output shaft first gear driven teeth 11, the one-way clutch 12, the one-way clutch inner ring 13, the output shaft 1, the main speed reduction driving teeth 2 and the main speed reduction driven teeth 14, which is a first gear transmission condition, and is particularly pointed out here: because the one-way clutch can not be in reverse transmission, the gear shifting gear sleeve 7 can not be in reverse transmission at the position to realize reverse gear.
When the gear shifting sleeve 7 is positioned at the left side, the output torque of the driving motor is transmitted to the differential assembly 15 through the input shaft 5, the input shaft secondary driving tooth 4, the output shaft secondary driven tooth 3, the secondary engaging tooth 6, the gear shifting sleeve 7, the gear shifting hub 8, the output shaft 1, the main speed reduction driving tooth 2 and the main speed reduction driven tooth 14, and the two-gear transmission condition is that the driving motor can drive in forward and reverse rotation.
As shown in fig. 3: when the gear shifting sleeve 7 is located at the right position, the output torque of the driving motor is transmitted to the differential assembly 15 through the input shaft 5, the input shaft first-gear driving teeth 10, the output shaft first-gear driven teeth 11, the first-gear engaging teeth 9, the gear shifting sleeve 7, the gear shifting hub 8, the output shaft 1, the main speed reduction driving teeth 2 and the main speed reduction driven teeth 14, which is also a first-gear transmission condition, but the driving motor can transmit forward and reverse rotation at the moment, so that the driving motor can realize reverse gear transmission at the position.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. The utility model provides an electric motor car two keeps off speed change mechanism, includes output shaft (1) and input shaft (5), its characterized in that: a first-gear driving tooth (10) and a first-gear driven tooth (11) on an input shaft (5) are meshed, the first-gear driven tooth (11) is installed on an output shaft (1) through a one-way clutch (12), a first-gear combining tooth (9) is arranged on the side face of the first-gear driven tooth (11), whether the first-gear combining tooth (9) and a gear shifting hub (8) are in transmission or not is controlled through a gear shifting gear sleeve (7), and the gear shifting hub (8) is installed on the output shaft (1).
2. The two-gear speed change mechanism of the electric vehicle as claimed in claim 1, wherein the output shaft (1) is sleeved with two-gear driven teeth (3), the two-gear driven teeth (3) are meshed with two-gear driving teeth (4) on the input shaft (5), two-gear engaging teeth (6) are arranged on the side surfaces of the two-gear driven teeth (3), and whether the two-gear engaging teeth (6) and the gear shift hub (8) are driven or not is controlled through a gear shift sleeve (7).
3. The two-gear speed change mechanism of the electric vehicle is characterized in that a main speed reduction driving tooth (2) on the output shaft (1) is meshed with a main speed reduction driven tooth (14) of a differential assembly (15).
4. The two-gear speed change mechanism of the electric vehicle is characterized in that a first-gear driven tooth (11) and a second-gear driven tooth (3) are respectively positioned at two sides of a gear shift gear hub (8), the first-gear driven tooth (11) is sleeved on an output shaft (1) in an empty mode, the second-gear driven tooth (3) is installed on an outer ring of a one-way clutch (12), and an inner ring of the one-way clutch (12) is installed on the output shaft (1).
5. The two-gear speed change mechanism of the electric vehicle as claimed in claim 4, wherein when the gear shift sleeve (7) is located at the middle position, the gear shift hub (8) has no transmission relation with the first-gear driven gear (11) and the second-gear driven gear (3); when the gear shifting gear sleeve (7) is shifted to the left side, the left side of the gear shifting gear sleeve (7) is meshed with a first-gear combination tooth (9) of a first-gear driven tooth (11), and the right side of the gear shifting gear sleeve (7) is meshed with a gear shifting gear hub (8); when the gear shifting gear sleeve (7) is shifted to the right side, the right side of the gear shifting gear sleeve (7) is meshed with the second gear combined tooth (6) of the second gear driven tooth (3), and the left side of the gear shifting gear sleeve (7) is meshed with the gear shifting gear hub (8).
6. The two-gear speed change mechanism of the electric vehicle as claimed in claim 2, wherein the first gear driven tooth (11) and the second gear driven tooth (3) have a step on the side surface thereof which is close to the gear shift hub (8) for fixedly mounting the first gear engaging tooth (9) and the second gear engaging tooth (6), respectively.
7. The electric vehicle two-gear speed change mechanism according to any one of claims 1 to 6, wherein the electric vehicle two-gear speed change mechanism is mounted between a front housing (18) and a rear housing (19), and the rear housing (19) is provided with an electric gear shift mechanism (16) and a gear sensor (17).
8. The two-speed transmission mechanism of an electric vehicle as claimed in any one of claims 1 to 6, wherein the transmission is used for an electric vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380788.8U CN211778779U (en) | 2019-08-23 | 2019-08-23 | Two-gear speed change mechanism of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380788.8U CN211778779U (en) | 2019-08-23 | 2019-08-23 | Two-gear speed change mechanism of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211778779U true CN211778779U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921380788.8U Active CN211778779U (en) | 2019-08-23 | 2019-08-23 | Two-gear speed change mechanism of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211778779U (en) |
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2019
- 2019-08-23 CN CN201921380788.8U patent/CN211778779U/en active Active
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