CN216374177U - Electrically driven vehicle and 4-gear transmission structure of integrated input shaft thereof - Google Patents
Electrically driven vehicle and 4-gear transmission structure of integrated input shaft thereof Download PDFInfo
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- CN216374177U CN216374177U CN202123187228.0U CN202123187228U CN216374177U CN 216374177 U CN216374177 U CN 216374177U CN 202123187228 U CN202123187228 U CN 202123187228U CN 216374177 U CN216374177 U CN 216374177U
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Abstract
The utility model discloses a 4-gear transmission structure of an integrated input shaft, which has smaller volume compared with the traditional central driving structure, is integrated with an axle without a transmission shaft, has less gear pairs of an electric driving structure, has higher transmission efficiency compared with the traditional scheme, and occupies small longitudinal space; the gear-shifting mechanism is different from the traditional gear-shifting mode, the gear-shifting mechanism is combined with a sleeve to shift gears, the gear-shifting mechanism is simpler to control, and the transmission is prevented from being scrapped due to the fact that the transmission is engaged into a double gear due to misoperation or structural failure; the main motor power that drives of in-process of shifting is interrupted, is driven the motor by assisting and provides auxiliary power, reduces to be frustrated and promotes the travelling comfort, and main motor that drives when needs big moment of torsion and the auxiliary motor that drives work simultaneously, promotes power. In addition, the input shaft has good integral structure rigidity, the shaft is not easy to deform and shift gears, and the gear is not easy to disengage in the driving process. The utility model also discloses an electrically driven vehicle.
Description
Technical Field
The utility model relates to the technical field of vehicle engineering, in particular to an electrically driven vehicle and a 4-gear transmission structure of an integrated input shaft of the electrically driven vehicle.
Background
In a vehicle structure, a transmission system is an important component distribution, and a power source drives a wheel pair to rotate through transmission of a gearbox.
At present, increasingly higher requirements are put on gearboxes, including: such as volume, transmission efficiency, ease of control, etc.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a 4-speed transmission structure of a unitary input shaft.
In order to achieve the purpose, the utility model provides the following technical scheme:
a 4-speed transmission structure of an integrated input shaft, comprising: the gear shifting mechanism comprises a first input shaft, a second input shaft, a gear shifting gear pair, a gear shifting mechanism and a differential assembly;
the shift gear pair includes: the first gear, the second gear, the third gear, the fourth gear and the planet row;
the first end of the first input shaft is used for connecting a first power source, and the second end of the first input shaft is fixedly connected with the first gear; the first gear is meshed with the second gear, the second gear is coaxially connected with the third gear, and the third gear is meshed with the fourth gear; the first gear and the fourth gear are both sleeved on the second input shaft in a hollow manner, and a sun gear of the planet row is fixedly connected to the second input shaft;
the shift mechanism includes: the gear box comprises a first gear sleeve, a second gear sleeve, a first spline, a second spline, a third spline and a connecting point;
the first spline is fixedly connected to the first gear, the second spline is fixedly connected to the fourth gear, and the first gear sleeve axially and slidably arranged on the second input shaft can be matched with the first spline or the second spline; the third spline is fixedly connected to the second input shaft, the connection point is fixedly connected to the first power source shell, the second gear sleeve is axially and slidably arranged on the gear ring of the planet row, and the second gear sleeve can be matched with the third spline or the connection point;
the differential assembly is fixedly connected with a tenth gear, and a planet carrier of the planet row transmits power to the tenth gear.
Preferably, the first gear is sleeved on one end of the second input shaft, and the third spline is fixed to the other end of the second input shaft.
Preferably, the first gear and the fourth gear are respectively mounted to the second input shaft by needle bearings.
Preferably, the second input shaft is of a unitary construction.
Preferably, the planet carrier meshes with the tenth gear.
Preferably, the method further comprises the following steps: a third shaft and a ninth gear;
the third shaft is used for connecting a second power source;
the ninth gear is fixedly connected to the third shaft, and the planet carrier, the ninth gear and the tenth gear are meshed in sequence.
Preferably, the method further comprises the following steps: the first and second power sources;
the first power source and the second power source are both motors.
Preferably, the method further comprises the following steps: an axle housing;
the second input shaft, the gear shifting gear pair, the gear shifting mechanism and the differential assembly are all located in the axle housing;
the first end of first input shaft is located be used for connecting outside the axle housing first power supply, the second end of first input shaft is located in the axle housing.
Preferably, the method further comprises the following steps: an output half shaft;
the first end of output semi-axis with the transmission of differential mechanism assembly is connected, the second end of output semi-axis is located outside the axle housing.
An electrically driven vehicle comprises a gearbox which adopts a 4-gear gearbox transmission structure of an integrated input shaft as described above.
According to the technical scheme, the 4-gear gearbox transmission structure of the integrated input shaft is smaller than a traditional central driving volume, and the transmission efficiency of the gear shifting gear pair is higher than that of the traditional scheme; compared with the traditional gear selecting and shifting mode, the gear shifting mechanism has the advantages that the gear shifting is realized in a gear sleeve combination mode, the gear shifting mechanism is simpler to control, and the transmission is prevented from being scrapped due to the fact that the transmission is engaged into a double gear due to misoperation or structural faults; a plurality of structures are arranged on the second input shaft to form an integral structure, and the coaxial arrangement occupies small longitudinal space.
The utility model also provides an electrically driven vehicle, which has corresponding beneficial effects due to the adoption of the 4-gear transmission structure of the integrated input shaft, and specific reference can be made to the foregoing description, so that the detailed description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a 4-speed transmission structure of an integrated input shaft according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a 4-speed gearbox transmission structure of an integrated input shaft in a second embodiment of the utility model.
Wherein S11 is a first input shaft, S12 is a second input shaft, S20 is a second shaft, S30 is a third shaft, and S40 is an output half shaft;
z1 is a first gear, Z2 is a second gear, Z3 is a third gear, Z4 is a fourth gear, K is a planetary row, Z5 is a sun gear, Z6 is a planetary gear, Z7 is a ring gear, Z8 is a planet carrier, Z9 is a ninth gear, and Z10 is a tenth gear;
c1 is a first spline, C2 is a second spline, C3 is a third spline, and B1 is a connecting point;
1 is a first gear sleeve, 2 is a second gear sleeve, and 3 is a differential assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the utility model provides a 4-gear transmission structure of an integrated input shaft, which comprises: a first input shaft S11, a second input shaft S12, a shift gear pair, a shift mechanism, and a differential assembly 3; the structure of which can be seen in fig. 1 and 2;
wherein, the gear pair of shifting includes: a first gear Z1, a second gear Z2, a third gear Z3, a fourth gear Z4 and a planet row K;
the first end of the first input shaft S11 is used for connecting a first power source, and the second end is fixedly connected with the first gear Z1; the first gear Z1 meshes with the second gear Z2, the second gear Z2 and the third gear Z3 are connected by a second shaft S20, and the third gear Z3 meshes with the fourth gear Z4; the first gear Z1 and the fourth gear Z4 are both sleeved on the second input shaft S12, and the sun gear Z5 of the planet row K is fixedly connected with the second input shaft S12;
the gear shift mechanism includes: a first gear sleeve 1, a second gear sleeve 2, a first spline C1, a second spline C2, a third spline C3 and a connection point B1;
the first spline C1 is fixedly connected with the first gear Z1, the second spline C2 is fixedly connected with the fourth gear Z4, and the first gear sleeve 1 axially, slidably and fixedly connected to the second input shaft S12 can be matched with the first spline C1 or the second spline C2;
the third spline C3 is fixedly connected to the second input shaft S12, the connection point B1 is fixedly connected to the first power source housing, the second sleeve gear 2 is axially slidably arranged on the ring gear Z7 of the planet row K, and the second sleeve gear 2 can be matched with the third spline C3 or the connection point B1;
the differential assembly 3 is fixedly connected with a tenth gear Z10, and a planet carrier Z8 of the planet row K transmits power to the tenth gear Z10.
According to the technical scheme, the transmission structure of the 4-gear gearbox with the integrated input shaft provided by the embodiment of the utility model is smaller than the traditional central driving volume, and the transmission efficiency of few gear shifting gear pairs is higher than that of the traditional scheme; compared with the traditional gear selecting and shifting mode, the gear shifting mechanism has the advantages that the gear shifting is realized in a gear sleeve combination mode, the gear shifting mechanism is simpler to control, and the transmission is prevented from being scrapped due to the fact that the transmission is engaged into a double gear due to misoperation or structural faults; providing a plurality of structures to the second input shaft S12 forms a unitary structure, the coaxial arrangement taking up little longitudinal space.
As shown in fig. 1 and 2, the first gear Z1 is hollow around one end of the second input shaft S12, and the third spline C3 is fixed to the other end of the second input shaft S12. So set up for gear shifting gear pair concentrates on arranging, and differential assembly 3 is transmitted to by the centre of whole structure to power, with satisfy specific space demand. The first power source is arranged in front of the gear shift gear pair, and the forward arrangement mode can simplify the structures of the first power source and the gear shift gear pair and simplify the assembly operation of the first power source and the gear shift gear pair.
Preferably, the first gear Z1 and the fourth gear Z4 are respectively mounted on the second input shaft S12 through needle bearings, which can meet the requirements of operational stability, reliability and service life of the gears during operation and prevent large radial run-out.
Specifically, second input shaft S12 formula structure as an organic whole, rigidity is good, and the axle is difficult to warp, shifts easily, and it is difficult for out of gear to go the in-process.
In the first embodiment provided by the scheme, the planet carrier Z8 is directly meshed with the tenth gear Z10, the structure of the planet carrier can be shown in fig. 1, and the transmission path is simple.
In a second embodiment provided by the present disclosure, the method further includes: a third shaft S30 and a ninth gear Z9, the structure of which can be seen with reference to fig. 1;
wherein the third shaft S30 is used to connect to a second power source;
the ninth gear Z9 is fixed to the third shaft S30, and the carrier Z8, the ninth gear Z9, and the tenth gear Z10 mesh in this order. When the power of the first power source is interrupted in the gear shifting process, the second power source can provide auxiliary power, the pause and the pause are reduced, the comfort is improved, and the first power source and the second power source work simultaneously when large torque is needed, so that the power is improved.
The embodiment of the utility model provides a 4-gear transmission structure of an integrated input shaft, which further comprises: a first power source and a second power source;
the first power source and the second power source are both motors. The scheme can be embodied as a 4-gear gearbox based on motor drive. The arrangement close to the rear-stage output end needs a motor with larger torque, the number of parts for power to pass through is small, the efficiency is high, and the gear shifting speed regulation of the main drive motor to the gear to be shifted is not influenced (in order to enable the sliding sleeve and the gear to reach the same rotating speed).
The embodiment of the utility model provides a 4-gear transmission structure of an integrated input shaft, which further comprises: an axle housing (not shown);
the second input shaft S12, the shifting gear pair, the shifting mechanism and the differential assembly 3 are all positioned in the axle housing;
a first end of the first input shaft S11 is located outside the axle housing for connection to a first power source, and a second end of the first input shaft S11 is located inside the axle housing. The transmission shaft in the prior art is omitted, the first power source is directly and fixedly connected with the input shaft (the first input shaft S11) of the drive axle, and therefore transmission of power is directly carried out, the power transmission distance is shortened, the whole vehicle mass is reduced, and the space in the vehicle is increased.
The embodiment of the utility model provides a 4-gear transmission structure of an integrated input shaft, which further comprises: output half shaft S40; the structure of which can be seen in fig. 1 and 2;
the first end of the output half shaft S40 is in transmission connection with the differential assembly 3, and the second end of the output half shaft S40 is located outside the axle housing.
TABLE 1
The first embodiment has the following gears as shown in the table, wherein the power transmission route of the first embodiment is as follows: the first gear sleeve 1 is connected with a fourth gear Z4, and the second gear sleeve 2 is connected with a connection point B1; the power of the first power source is transmitted to the differential assembly 3 through a first gear Z1, a second gear Z2, a third gear Z3, a fourth gear Z4, a second input shaft S12, a sun gear Z5, a planet gear Z6, a planet carrier Z8 and a tenth gear Z10 in sequence and acts on an output half shaft S40;
the power transmission route of the gear 2 is as follows: the first gear sleeve 1 is connected with a first gear Z1, and the second gear sleeve 2 is connected with a connection point B1; the power of the first power source is transmitted to the differential assembly 3 through the first gear Z1, the second input shaft S12, the sun gear Z5, the planet gear Z6, the planet carrier Z8 and the tenth gear Z10 in sequence and is acted on the output half shaft S40;
the power transmission route of the gear 3 is as follows: the first gear sleeve 1 is connected with a fourth gear Z4, and the second gear sleeve 2 is connected with a second input shaft S12, namely, a sun gear Z5 and a gear ring Z7 are connected by a third spline C3; the power of the first power source is transmitted to the differential assembly 3 through a first gear Z1, a second gear Z2, a third gear Z3, a fourth gear Z4, a second input shaft S12, a planet carrier Z8 and a tenth gear Z10 in sequence and is acted on an output half shaft S40;
the power transmission route of the gear 4 is as follows: the first gear sleeve 1 is connected with a first gear Z1, and the second gear sleeve 2 is connected with a second input shaft S12, namely, a sun gear Z5 and a gear ring Z7 are connected by a third spline C3; the power of the first power source is transmitted to the differential assembly 3 through the first gear Z1, the second input shaft S12, the carrier Z8, and the tenth gear Z10 in this order, and is applied to the output half shaft S40.
For each gear of the second embodiment, reference may be made to the first embodiment, and details are not described herein.
The embodiment of the utility model also provides an electrically driven vehicle which comprises a gearbox, wherein the gearbox adopts a 4-gear gearbox transmission structure of the integrated input shaft. In the electrically driven vehicle in this scheme, because the above-mentioned 4 grades of gearbox transmission structure is adopted, it also has corresponding beneficial effect, can specifically refer to the foregoing description, and no longer describe herein.
In summary, the embodiment of the utility model discloses a transmission structure of a 4-gear gearbox with an integrated input shaft, which has smaller volume compared with the traditional central driving structure, is integrated with an axle without a transmission shaft, has fewer gear pairs in an electric driving structure, has higher transmission efficiency than the traditional scheme, and occupies small longitudinal space; the gear-shifting mechanism is different from the traditional gear-shifting mode, the gear-shifting mechanism is combined with a sleeve to shift gears, the gear-shifting mechanism is simpler to control, and the transmission is prevented from being scrapped due to the fact that the transmission is engaged into a double gear due to misoperation or structural failure; the main motor power that drives of in-process of shifting is interrupted, is driven the motor by assisting and provides auxiliary power, reduces to be frustrated and promotes the travelling comfort, and main motor that drives when needs big moment of torsion and the auxiliary motor that drives work simultaneously, promotes power. In addition, the input shaft has good integral structure rigidity, the shaft is not easy to deform and shift gears, and the gear is not easy to disengage in the driving process. The auxiliary drive motor is placed at the front stage close to the input shaft, and the motor can be made smaller due to the larger speed ratio of the gear, so that the space is saved; the arrangement close to the rear-stage output end needs a motor with larger torque, the number of parts for power to pass through is small, the efficiency is high, and the gear shifting speed regulation of the main drive motor to the gear to be shifted is not influenced (in order to enable the sliding sleeve and the gear to reach the same rotating speed). The embodiment of the utility model also discloses an electrically driven vehicle applying the 4-gear gearbox transmission structure.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A4-gear transmission structure of an integrated input shaft is characterized by comprising: a first input shaft (S11), a second input shaft (S12), a shifting gear pair, a shifting mechanism and a differential assembly (3);
the shift gear pair includes: a first gear (Z1), a second gear (Z2), a third gear (Z3), a fourth gear (Z4) and a planetary row (K);
the first end of the first input shaft (S11) is used for connecting a first power source, and the second end of the first input shaft is fixedly connected with the first gear (Z1); the first gear (Z1) is meshed with the second gear (Z2), the second gear (Z2) and the third gear (Z3) are coaxially connected, and the third gear (Z3) is meshed with the fourth gear (Z4); the first gear (Z1) and the fourth gear (Z4) are both hollow and sleeved on the second input shaft (S12), and the sun gear (Z5) of the planetary row (K) is fixedly connected with the second input shaft (S12);
the shift mechanism includes: the gear box comprises a first gear sleeve (1), a second gear sleeve (2), a first spline (C1), a second spline (C2), a third spline (C3) and a connecting point (B1);
the first spline (C1) is fixedly connected to the first gear (Z1), the second spline (C2) is fixedly connected to the fourth gear (Z4), and the first gear sleeve (1) axially and slidably arranged on the second input shaft (S12) can be matched with the first spline (C1) or the second spline (C2); the third spline (C3) is fixedly connected to the second input shaft (S12), the connection point (B1) is fixedly connected to a first power source housing, the second gear sleeve (2) is axially slidably arranged on a ring gear (Z7) of the planet row (K), and the second gear sleeve (2) can be matched with the third spline (C3) or the connection point (B1);
the differential assembly (3) is fixedly connected with a tenth gear (Z10), and a planet carrier (Z8) of the planet row (K) transmits power to the tenth gear (Z10).
2. The 4-speed transmission structure of a unitary input shaft according to claim 1, characterized in that the first gear (Z1) is hollow at one end of the second input shaft (S12), and the third spline (C3) is fixed at the other end of the second input shaft (S12).
3. The 4-speed transmission structure of an integrated input shaft according to claim 1, wherein the first gear (Z1) and the fourth gear (Z4) are respectively mounted to the second input shaft (S12) through needle bearings.
4. The 4-speed transmission structure of a unitary input shaft according to claim 1, wherein the second input shaft (S12) is a unitary structure.
5. The 4-speed gearbox transmission structure of an integrated input shaft according to claim 1, characterized in that the planet carrier (Z8) is meshed with the tenth gear (Z10).
6. The 4-speed transmission structure of an integrated input shaft according to claim 1, further comprising: a third shaft (S30) and a ninth gear (Z9);
the third shaft (S30) is used for connecting a second power source;
the ninth gear (Z9) is fixed to the third shaft (S30), and the carrier (Z8), the ninth gear (Z9), and the tenth gear (Z10) are engaged in this order.
7. The 4-speed transmission structure of an integrated input shaft according to claim 6, further comprising: the first and second power sources;
the first power source and the second power source are both motors.
8. The 4-speed transmission structure of an integrated input shaft according to claim 1, further comprising: an axle housing;
the second input shaft (S12), the pair of shift gears, the shift mechanism and the differential assembly (3) are all located within the axle housing;
the first end of the first input shaft (S11) is located outside the axle housing for connection to the first power source, and the second end of the first input shaft (S11) is located inside the axle housing.
9. The 4-speed transmission structure of an integrated input shaft according to claim 8, further comprising: an output half shaft (S40);
the first end of the output half shaft (S40) is in transmission connection with the differential assembly (3), and the second end of the output half shaft (S40) is located outside the axle housing.
10. An electrically driven vehicle comprising a gearbox, characterized in that the gearbox adopts a 4-speed gearbox transmission configuration of an integral input shaft according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123187228.0U CN216374177U (en) | 2021-12-17 | 2021-12-17 | Electrically driven vehicle and 4-gear transmission structure of integrated input shaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123187228.0U CN216374177U (en) | 2021-12-17 | 2021-12-17 | Electrically driven vehicle and 4-gear transmission structure of integrated input shaft thereof |
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| Publication Number | Publication Date |
|---|---|
| CN216374177U true CN216374177U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123187228.0U Active CN216374177U (en) | 2021-12-17 | 2021-12-17 | Electrically driven vehicle and 4-gear transmission structure of integrated input shaft thereof |
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| CN (1) | CN216374177U (en) |
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- 2021-12-17 CN CN202123187228.0U patent/CN216374177U/en active Active
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