CN215720724U - Main and auxiliary box transmission and vehicle - Google Patents
Main and auxiliary box transmission and vehicle Download PDFInfo
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- CN215720724U CN215720724U CN202122366391.7U CN202122366391U CN215720724U CN 215720724 U CN215720724 U CN 215720724U CN 202122366391 U CN202122366391 U CN 202122366391U CN 215720724 U CN215720724 U CN 215720724U
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Abstract
The utility model belongs to the technical field of automobile transmission, and provides a main box and auxiliary box transmission and a vehicle. The main and auxiliary transmission of the present invention includes: the main gearbox comprises an input shaft assembly, an output shaft assembly and a gear shifting mechanism, wherein the input shaft assembly is used for transmitting the power of a vehicle power device to the output shaft assembly, and the gear shifting mechanism is used for shifting gears of the main gearbox; the auxiliary gearbox is in transmission connection with the output shaft assembly through a clutch device, and the clutch device is used for switching on or switching off power transmission between the auxiliary gearbox and the output shaft assembly; when the output shaft assembly and the auxiliary gearbox are in a disconnected state, the power output by the output shaft assembly is output to the transmission shaft, and when the output shaft assembly and the auxiliary gearbox are in a connected state, the power output by the output shaft assembly is output to the transmission shaft after being decelerated by the auxiliary gearbox. The vehicle of the utility model includes the aforementioned main-sub transmission. The utility model can be suitable for vehicle types with different torque requirements.
Description
Technical Field
The utility model belongs to the technical field of automobile transmission, and particularly relates to a transmission of a main box and an auxiliary box and a vehicle.
Background
With the popularization of automobiles in life, automobiles become an indispensable important tool in people's traveling and work. The automobile transmission is an important part for realizing the power transmission function of the automobile, the power generated by the automobile power device is transmitted to the transmission shaft after being reduced by the transmission, but the output torques required by automobiles with different purposes are different, such as a small torque and a high rotating speed required by a household vehicle and a small car, and a large torque and a low rotating speed required by heavy-duty trucks, commercial vehicles, passenger cars and the like. At present, a speed reducer adopts a form of a gearbox, although different torque outputs can be obtained by utilizing a gear shifting mechanism, the range of the torque outputs is limited, and the speed reducer cannot be matched with different types of vehicle models.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a transmission with a main box and an auxiliary box and a vehicle, which are used for solving the technical problem that the existing transmission cannot be matched with vehicle types with different torque requirements.
The technical scheme adopted by the utility model is as follows:
in a first aspect, the present invention provides a transmission of a main-auxiliary transmission, comprising:
the main gearbox transmission comprises an input shaft assembly, an output shaft assembly and a gear shifting mechanism, wherein the input shaft assembly is used for transmitting the power of a vehicle power device to the output shaft assembly, and the gear shifting mechanism is used for shifting gears of the main gearbox;
the auxiliary gearbox is in transmission connection with the output shaft assembly through a clutch device, and the clutch device is used for switching on or switching off power transmission between the auxiliary gearbox and the output shaft assembly;
when the output shaft assembly and the auxiliary gearbox are in a disconnected state, the power output by the output shaft assembly is output to the transmission shaft, and when the output shaft assembly and the auxiliary gearbox are in a connected state, the power output by the output shaft assembly is output to the transmission shaft after being decelerated by the auxiliary gearbox.
Preferably, the auxiliary gearbox comprises an auxiliary box input shaft, an auxiliary box input gear, an auxiliary box output shaft and an auxiliary box output gear, the auxiliary box input shaft drives the auxiliary box input gear to rotate, the auxiliary box input gear is meshed with the auxiliary box output gear, and the auxiliary box output gear drives the auxiliary box output shaft to rotate.
Preferably, the sub-tank input gear and the sub-tank input shaft are of an integrated structure, and the sub-tank output gear and the sub-tank output shaft are of an integrated structure.
Preferably, the auxiliary box input gear is fixedly connected with the auxiliary box input shaft, and the auxiliary box output gear is fixedly connected with the auxiliary box output shaft.
Preferably, a key groove is formed in the auxiliary box input shaft, and the auxiliary box input shaft is connected with the clutch device through the key groove.
Preferably, two ends of the auxiliary box input shaft are provided with ball bearings, and the auxiliary box input shaft is rotatably connected with the box body of the auxiliary gearbox through the ball bearings.
Preferably, two ends of the auxiliary box output shaft are provided with conical bearings, the directions of conical surfaces of the conical bearings at the two ends are opposite, and the auxiliary box output shaft is rotatably connected with the box body of the auxiliary gearbox through the conical bearings.
Preferably, the input shaft assembly is provided with an input shaft, a first-gear input gear, a second-gear input gear, a third-gear input gear and a fourth-gear input gear, the first-gear input gear, the third-gear input gear, the fourth-gear input gear and the second-gear input gear are sequentially arranged along the axial direction of the input shaft, the output shaft assembly is provided with an output shaft, a first-gear output gear meshed with the first-gear input gear, a second-gear output gear meshed with the second-gear input gear, a third-gear output gear meshed with the third-gear input gear and a fourth-gear output gear meshed with the fourth-gear input gear;
preferably, the shift mechanism includes a first synchronizer provided on the input shaft and a second synchronizer provided on the output shaft, the first synchronizer being configured to rotate the input shaft of the transmission in synchronization with the second-speed input gear or the fourth-speed input gear, and the second synchronizer being configured to rotate the output shaft of the transmission in synchronization with the first-speed output gear or the third-speed output gear.
In a second aspect, the present invention provides a vehicle including the main-auxiliary transmission of the first aspect.
Has the advantages that: the main and auxiliary box transmissions and the vehicle can provide two output modes with different torques, and the two output modes can be selected by the clutch state of the clutch device. One is that the power of the automobile power device is transmitted to the main gear box, and the power is directly transmitted to the transmission shaft of the automobile after being decelerated by the main gear box. The other power of the automobile power device is transmitted to the main gearbox, is transmitted to the auxiliary gearbox through the clutch device after being decelerated by the main gearbox, and is further decelerated and torque-increased by the auxiliary gearbox and then output to a transmission shaft of the automobile. The utility model can be applied to vehicles with different torque requirements because the output of two different torques can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.
FIG. 1 is a schematic representation of the transmission of the main and auxiliary transmission of the present invention;
FIG. 2 is a schematic illustration of the transmission principle of the main transmission of the present invention;
FIG. 3 is a schematic structural view of a rangebox input shaft assembly of the present invention;
FIG. 4 is a schematic structural view of an output shaft assembly of the rangebox of the present invention;
FIG. 5 is a schematic illustration of the drive scheme of the main transmission of the main and auxiliary transmission of the present invention;
FIG. 6 is a schematic structural view of the input shaft assembly of the main transmission of the present invention;
FIG. 7 is a schematic diagram of an output shaft assembly of the rangebox of the present invention;
description of reference numerals:
the transmission comprises a sub-transmission input 100, a sub-transmission input shaft 110, a sub-transmission input gear 120, a sub-transmission output shaft 130, a sub-transmission output gear 140, a ball bearing 150, a tapered bearing 160, a main transmission 200, a power device 300, a first synchronizer 2, a second synchronizer 4, an input shaft assembly 80, a first-gear input gear 81, a second-gear input gear 82, a third-gear input gear 83, a fourth-gear input gear 84, an input shaft 85, a second bearing 86, a fourth bearing 87, an output shaft assembly 90, a first-gear output gear 91, a second-gear output gear 92, a third-gear output gear 93, a fourth-gear output gear 94, an output shaft 95, a first bearing 96 and a third bearing 97.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments of the present invention and the various features of the embodiments may be combined with each other within the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a main-auxiliary transmission including a main transmission case 200 and an auxiliary transmission case 100, the auxiliary transmission case 100 being located at one side in the axial direction of the main transmission case 200. The main transmission 200 and the auxiliary transmission 100 can achieve outputs of different torques and rotation speeds.
The main transmission case 200 comprises an input shaft assembly 80, an output shaft assembly 90 and a gear shifting mechanism, wherein the input shaft assembly 80 is used for transmitting the power of the vehicle power device 300 to the output shaft assembly 90, and the gear shifting mechanism is used for shifting gears of the main transmission case 200;
wherein the input shaft assembly 80 and the output shaft assembly 90 cooperate to use transmission power, in this embodiment, the power at the input end of the main transmission box 200 is reduced by the cooperation of the input shaft assembly 80 and the output shaft assembly 90 and then is output from the output end. In addition, the main transmission box 200 of the present embodiment can set a plurality of gears with different transmission ratios, and realize the switching of the plurality of gears by using the gear shifting mechanism.
The auxiliary gearbox 100 is in transmission connection with the output shaft assembly 90 through a clutch device, and the clutch device is used for switching on or switching off power transmission between the auxiliary gearbox 100 and the output shaft assembly 90; a key groove is formed in the auxiliary box input shaft 110, and the auxiliary box input shaft 110 is connected with the clutch device through the key groove. The clutch device may be a clutch. One end of the clutch is in transmission connection with the output shaft of the main transmission case 200, and the other end is connected with the output shaft of the auxiliary transmission case 100 through a spline.
As shown in fig. 2, the range box 100 includes a range box input shaft 110, a range box input gear 120, a range box output shaft 130, and a range box output gear 140, wherein during transmission, the range box input shaft 110 drives the range box input gear 120 to rotate, the range box input gear 120 is engaged with the range box output gear 140, and the range box output gear 140 drives the range box output shaft 130 to rotate.
During the transmission, the sub-tank input gear 120 and the sub-tank input shaft 110 rotate synchronously, and the sub-tank output gear 140 and the sub-tank output shaft 130 rotate synchronously. In this regard, the present embodiment provides two ways to achieve the synchronous rotation of the sub-tank input gear 120 and the sub-tank input shaft 110, and the synchronous rotation of the sub-tank output gear 140 and the sub-tank output shaft 130.
In one embodiment, the sub-tank input gear 120 and the sub-tank input shaft 110 are integrally formed, and the sub-tank output gear 140 and the sub-tank output shaft 130 are integrally formed. This arrangement forms the sub-tank input gear 120 directly on the sub-tank input shaft 110 and the sub-tank output gear 140 directly on the sub-tank output shaft 130.
Alternatively, the sub-tank input gear 120 is fixedly connected to the sub-tank input shaft 110, and the sub-tank output gear 140 is fixedly connected to the sub-tank output shaft 130. The fixed connection can be realized by adopting a key or a spline connection.
As shown in fig. 3, the sub-tank input shaft 110 is installed in a sub-tank, ball bearings 150 are provided at both ends of the sub-tank input shaft 110, and the sub-tank input shaft 110 is rotatably connected to the casing of the sub-transmission 100 through the ball bearings 150.
As shown in fig. 4, the sub-box output shaft 130 is installed in a sub-box, tapered bearings 160 are provided at both ends of the sub-box output shaft 130, the sub-box output shaft 130 is rotatably connected to the box body of the sub-transmission 100 through the tapered bearings 160, and the tapered surfaces of the tapered bearings 160 at both ends are opposite in direction. After the conical bearing 160 is adopted, the auxiliary box output shaft 130 can bear axial impact brought by load, and the conical surfaces at the two ends are arranged in opposite directions, so that the conical bearing 160 can bear bidirectional axial impact.
When the output shaft assembly 90 and the counter gearbox 100 are in a disconnected state, the power output by the output shaft assembly 90 is output to the transmission shaft, and when the output shaft assembly 90 and the counter gearbox 100 are in a connected state, the power output by the output shaft assembly 90 is output to the transmission shaft after being decelerated by the counter gearbox 100.
The transmission of this embodiment provides two output modes, one is that the power of the automobile power device 300 is transmitted to the main transmission box 200, and the power is directly transmitted to the transmission shaft of the automobile after being decelerated by the main transmission box 200. The other is that the power of the automobile power device 300 is firstly transmitted to the main gearbox 200, is transmitted to the auxiliary gearbox 100 through the clutch device after being reduced by the main gearbox 200, and is further reduced and torque-increased by the gearbox and then is output to the transmission shaft of the automobile. When the first transmission mode is adopted, the output shaft of the main transmission box 200 is in transmission connection with the transmission shaft of the vehicle. When the second transmission mode is adopted, the output shaft 130 of the auxiliary box is in transmission connection with the transmission shaft.
The first transmission mode has the advantages that the output rotating speed is high, the torque is small, and the first transmission mode can be matched with vehicle types such as household vehicles and cars. The second transmission mode is low in output rotating speed after twice speed reduction through the main gearbox 200 and the auxiliary gearbox 100, and large in torque, so that the second transmission mode can be matched with heavy-duty truck, commercial vehicle, passenger car, electric vehicle and other vehicle types. The two modes can be selected by the clutch state of the clutch device. Because the main gearbox 200 can output various transmission ratios by using the gear shifting mechanism, and the connection mode that the main gearbox 200 and the auxiliary gearbox 100 can be separated from each other is adopted in the embodiment, various transmission ratios can be flexibly configured, and various transmission ratio outputs can be realized.
In the present embodiment, power generated by the power plant of the vehicle is transmitted to the input shaft assembly 80, and the power is transmitted from the input shaft assembly 80 to the output shaft assembly 90 by the cooperative use of the input shaft assembly 80 and the output shaft assembly 90. Finally, the output shaft assembly 90 transmits the power to the transmission shaft. The power device of the vehicle includes, but is not limited to, an engine and a motor.
As shown in fig. 6, the input shaft assembly 80 includes an input shaft 85, a first-gear input gear 81, a second-gear input gear, a third-gear input gear 83, and a fourth-gear input gear, wherein the first-gear input gear 81, the third-gear input gear, the fourth-gear input gear 84, and the second-gear input gear are sequentially arranged along an axial direction of the input shaft 85;
the transmission of the present embodiment further includes input shaft bearings disposed at both ends of the input shaft 85, the input shaft bearings are in interference fit with the input shaft, and the outer diameter of the input shaft 85 is fitted to the case to support the input shaft assembly 80.
The output shaft assembly 90 is provided with an output shaft 95, a first-gear output gear 91 meshed with the first-gear input gear 81, a second-gear output gear meshed with the second-gear input gear 82, a third-gear output gear meshed with the third-gear input gear 83, and a fourth-gear output gear meshed with the fourth-gear input gear 84;
the transmission of this embodiment also includes output shaft bearing, output shaft bearing arranges at output shaft 95 both ends and output shaft 95 interference fit, and the effect that the external diameter cooperation box played support to output shaft assembly 90.
The output shaft 95 may be connected to an output shaft of the engine or the motor through a coupling, a spline, or the like, so that the power of the engine or the motor may be transmitted to the output shaft 95. The output shaft 95 can be connected with the transmission shaft in a transmission manner through a coupling, a flange plate, a spline and the like, and the power of the output shaft 95 can be transmitted to the transmission shaft.
In this embodiment, the transmission can be switched between four different gears, namely, a first gear, a second gear, a third gear and a fourth gear, and the gears on the output shaft 95 for implementing the four gears are respectively corresponding to the first-gear input gear 81, the second-gear input gear, the third-gear input gear 83 and the fourth-gear input gear. The gears on the output shaft 95 for realizing the four gears are respectively corresponding to the first-gear output gear 91, the second-gear output gear 92, the third-gear output gear and the fourth-gear output gear 94. Wherein the gears of the same gear on the output shaft 95 and the output shaft 95 mesh with each other.
In this embodiment, the input gears of the four gears are arranged in the axial direction of the output shaft 95 in the following order: a first-gear input gear 81, a third-gear input gear, a fourth-gear input gear 84, and a second-gear input gear. The output gears of the four gears are sequentially arranged along the axial direction of the output shaft 95 in the following order: a first-gear output gear 91, a third-gear output gear 93, a fourth-gear output gear, and a second-gear output gear 92. The arrangement mode of the gears is not arranged according to the sequence of the first gear, the second gear, the third gear and the fourth gear which are sequentially shifted, but the mode of alternatively arranging the gears is adopted, wherein the first gear and the second gear are separated by the third gear, the third gear and the fourth gear are separated by the second gear, and the third gear and the fourth gear are arranged in the middle of the shafting. The present embodiment utilizes a shift mechanism to shift gears of the transmission. Because be separated between one keeping off and the two grades, consequently the engage gear of a fender and the engage gear of two grades can go on respectively, can not disturb and influence each other, makes the travelling comfort of engaging gear obtain promoting. Similarly, the two gears and the three gears can be respectively engaged, so that the mutual interference and influence can be avoided, and the engaging comfort is improved.
In the present embodiment, the shift mechanism includes a first synchronizer 2 and a second synchronizer 4, the first synchronizer 2 is provided on an output shaft 95, the second synchronizer 4 is provided on the output shaft 95, the first synchronizer 2 is used for synchronously rotating the output shaft 95 of the transmission with the two-gear input gear 82 or the four-gear input gear 84, and the second synchronizer 4 is used for synchronously rotating the output shaft 95 of the transmission with the first-gear output gear 91 or the three-gear output gear 93.
In the present embodiment, the first synchronizer 2 and the second synchronizer 4 are provided on different shafts, and the first synchronizer 2 and the second synchronizer 4 are arranged in a staggered manner, so that the two synchronizers do not interfere with each other when shifting gears. Because the first gear and the second gear are arranged in a staggered mode, the second synchronizer 4 is used when the first gear is engaged, and the first synchronizer 2 is used when the second gear is engaged, the first gear and the second gear can be engaged respectively and do not interfere with each other. Because the second gear and the third gear are arranged in a staggered mode, the first synchronizer 2 is used when the second gear is engaged, and the second synchronizer 4 is used when the third gear is engaged, the second gear and the third gear can be engaged respectively and do not interfere with each other. Since the second synchronizer 4 is used when the third gear is engaged and the first synchronizer 2 is used when the fourth gear is engaged, the third gear and the fourth gear can be engaged respectively without interference. In this embodiment, the arrangement mode of the gear arrangement and the synchronizer is adopted, so that two adjacent gears respectively adopt different synchronizers when engaging the gears step by step, and the engaging processes of the gears are not affected by each other.
In the present embodiment, the first synchronizer 2 is located between the second-gear input gear 82 and the fourth-gear input gear, so that the component of the first synchronizer 2 for engaging gear can be engaged with the second-gear input gear when moving to one side along the axial direction, and can be engaged with the fourth-gear input gear when moving to the other side along the axial direction, thereby being very convenient for engaging in both the second gear and the fourth gear. The distance that the part engaging gear has to be moved is also relatively short.
In this embodiment, the second-gear input gear is rotationally connected to the output shaft 95, the fourth-gear input gear is rotationally connected to the output shaft 95, the first synchronizer 2 is in synchronous transmission connection with the output shaft 95, when the first synchronizer 2 is in a state of being combined with the second-gear input gear, power of the output shaft 95 is transmitted to the second-gear input gear through the first synchronizer 2, and when the first synchronizer 2 is in a state of being combined with the fourth-gear input gear, power of the output shaft 95 is transmitted to the fourth-gear input gear through the first synchronizer 2.
The synchronous drive connection is a connection mode that allows the first synchronizer 2 and the output shaft 95 to rotate synchronously.
The second-gear input gear is rotationally connected with the output shaft 95, and the fourth-gear input gear is rotationally connected with the output shaft 95, that is, the second-gear is connected with the output shaft 95 and then can rotate relative to the output shaft 95, and the fourth-gear is connected with the output shaft 95 and then can rotate relative to the output shaft 95. The second-gear input gear and the fourth-gear input gear may be freely sleeved on the output shaft 95 so that the second-gear input gear and the fourth-gear input gear may rotate relative to the output shaft 95.
The input shaft assembly 80 of the present embodiment further includes a second bearing 86 and a fourth bearing 87, the second bearing 86 is disposed on the output shaft 95, the second gear input gear is rotationally connected to the output shaft 95 through the second bearing 86, the fourth bearing 87 is disposed on the output shaft 95, and the fourth gear input gear is rotationally connected to the output shaft 95 through the fourth bearing 87. Wherein the second bearing 86 and the fourth bearing 87 are preferably needle bearings. Of course, other types of bearings may be used in other embodiments, and are not limited thereto.
Wherein the first synchronizer 2 can be in synchronous transmission connection with the output shaft 95 through a spline. For example, a spline is provided on the outer diameter of the output shaft 95, a key groove matched with the spline is provided on the inner wall of the first synchronizer 2, the spline on the output shaft 95 is inserted into the key groove of the first synchronizer 2 along the axial direction, so that the first synchronizer 2 is connected with the output shaft 95, and the first synchronizer 2 can synchronously rotate with the output shaft 95 by the matching of the spline and the key groove.
Since the first synchronizer 2 and the output shaft 95 rotate synchronously, after the first synchronizer 2 is combined with the second-gear input gear, the second-gear input gear rotates synchronously with the first synchronizer 2 under the driving of the first synchronizer 2. When the first synchronizer 2 is combined with the fourth-gear input gear, the fourth-gear input gear is driven by the first synchronizer 2 to synchronously rotate with the first synchronizer 2.
As shown in fig. 5 and 7, in the present embodiment, the first-speed output gear is rotationally coupled to the output shaft 95, the third-speed output gear 93 is rotationally coupled to the output shaft 95, the second synchronizer 4 is synchronously coupled to the output shaft 95, when the second synchronizer 4 is engaged with the first-speed output gear, the power of the first-speed output gear is transmitted to the output shaft 95 through the second synchronizer 4, and when the second synchronizer 4 is engaged with the third-speed output gear 93, the power of the third-speed output gear 93 is transmitted to the output shaft 95 through the second synchronizer 4.
The synchronous drive connection is a connection mode that allows the second synchronizer 4 and the output shaft 95 to rotate synchronously. The first-gear output gear is rotationally connected with the output shaft 95, and the third-gear output gear 93 is rotationally connected with the output shaft 95, that is, the first-gear is connected with the output shaft 95 and then can rotate relative to the output shaft 95, and the third-gear is connected with the output shaft 95 and then can rotate relative to the output shaft 95. The first and third output gears 93 may be freely fitted on the output shaft 95 so that the first and third output gears 93 may rotate relative to the output shaft 95.
As shown in fig. 5 and 7, the output shaft assembly 90 of the present embodiment further includes a first bearing 96 and a third bearing 97, the first bearing 96 is disposed on the output shaft 95, the first-gear output gear is rotatably connected to the output shaft 95 through the first bearing 96, the third bearing 97 is disposed on the output shaft 95, and the third-gear output gear 93 is rotatably connected to the output shaft 95 through the third bearing 97. Wherein the first bearing 96 and the third bearing 97 are preferably needle bearings. Of course, other types of bearings may be used in other embodiments, and are not limited thereto.
When arranging through above design shafting, will keep off with three with four and arrange in the centre, two keep off and arrange in both sides and be favorable to the spatial arrangement of kingpin to reduce other parts, will be used for arranging the demand that can greatly reduced synchronizer ability on output shaft 95 with the synchronizer that keeps off and four keep off the combination, reduce the synchronizer cost.
Wherein the second synchronizer 4 can be in synchronous drive connection with the output shaft 95 via splines. For example, a spline is provided on the outer diameter of the output shaft 95, a key groove matched with the spline is provided on the inner wall of the first synchronizer 2, the spline on the output shaft 95 is inserted into the key groove of the first synchronizer 2 in the axial direction, so that the second synchronizer 4 is connected with the output shaft 95, and the second synchronizer 4 can rotate synchronously with the output shaft 95 by the matching of the spline and the key groove.
Since the second synchronizer 4 rotates synchronously with the output shaft 95, after the second synchronizer 4 is combined with the third-gear output gear 93, the third-gear output gear 93 rotates synchronously with the second synchronizer 4 under the driving of the second synchronizer 4. When the second synchronizer 4 is combined with the fourth-gear input gear, the fourth-gear input gear is driven by the second synchronizer 4 to synchronously rotate with the second synchronizer 4.
As shown in fig. 7, in the present embodiment, the second synchronizer 4 is located between the first-gear output gear 91 and the third-gear output gear 93, so that the component of the second synchronizer 4 for engaging gear can be engaged with the first-gear output gear 91 when moving to one side in the axial direction, and can be engaged with the third-gear output gear 93 when moving to the other side in the axial direction, and therefore, it is very convenient to engage the first gear or the third gear, and the distance that the component for engaging gear needs to move when moving is relatively short.
One of the first-gear input gear and the third-gear input gear may be connected to the output shaft 95 by a spline and rotate synchronously with the output shaft 95, and the second-gear output gear 92 and the fourth-gear output gear 94 may be connected to the output shaft 95 by a spline and rotate synchronously with the output shaft 95.
The method for performing shift control using the transmission of the present embodiment is:
controlling the first synchronizer 2 to be in a state of being separated from both the fourth-gear input gear and the second-gear input gear, and simultaneously controlling the second synchronizer 4 to be in a state of being combined with the first-gear output gear and separated from the third-gear output gear 93, and switching the gear of the gearbox to the first gear;
controlling the first synchronizer 2 to be in a state of being combined with the second-gear input gear and separated from the fourth-gear input gear, and simultaneously controlling the second synchronizer 4 to be in a state of being separated from both the first-gear output gear and the third-gear output gear 93, and switching the gear of the gearbox to the second gear;
controlling the first synchronizer 2 to be in a state of being separated from both the fourth-gear input gear and the second-gear input gear, and simultaneously controlling the second synchronizer 4 to be in a state of being combined with the third-gear output gear 93 and separated from the first-gear output gear, and switching the gear of the gearbox to the third gear;
the first synchronizer 2 is controlled to be in a state of being combined with the fourth-gear input gear and separated from the second-gear input gear, and simultaneously the second synchronizer 4 is controlled to be in a state of being separated from both the first-gear output gear and the third-gear output gear 93, and the gear of the gearbox is switched to the fourth gear.
The specific operation process is as follows:
when the first gear is engaged, the second synchronizer 4 is engaged to the left, the first gear output gear is connected with the output shaft 95, the power is transmitted to the output shaft 95 through the spline, and the output shaft 95 is transmitted to the first gear output gear on the output shaft 95 through the first gear input gear on the output shaft 95. The first gear output gear transmits power to the output shaft 95, and transmits power to the transmission shaft through a spline on the output shaft 95;
when the second gear is hung, the first synchronizer 2 is hung to the right, the second gear input gear is connected with the output shaft 95, power is transmitted to the output shaft 95 through a spline, the output shaft 95 is transmitted to the second gear input gear through the spline connection, the second gear input gear transmits the power to the second gear output gear 92, the second gear output gear 92 is transmitted to the output shaft 95 through the spline, and the second gear output shaft 95 is transmitted to the transmission shaft through the spline;
when the third gear is engaged, the second synchronizer 4 is engaged to the right, the third-gear output gear 93 is connected with the output shaft 95, power is transmitted to the output shaft 95 through the spline, the output shaft 95 is transmitted to the third-gear output gear 93 through the third-gear input gear, the third-gear output gear 93 is transmitted to the output shaft 95, and power is transmitted to the transmission shaft through the spline on the output shaft 95.
When the fourth gear is engaged, the first synchronizer 2 is engaged leftward, the fourth input gear is connected with the output shaft 95, power is transmitted to the output shaft 95 through a spline, the output shaft 95 is transmitted to the fourth input gear through spline connection, the fourth input gear is transmitted to the fourth output gear on the output shaft 95, and the output shaft 95 is transmitted to the transmission shaft through a spline.
Example 2
The present embodiment provides a vehicle including the transmission of the main and auxiliary tanks according to the first aspect, and the vehicle of the present embodiment may be a conventional fuel vehicle such as a gasoline vehicle, a diesel vehicle, or the like, or may be a new energy vehicle. The new energy vehicles include, but are not limited to, pure electric (BEV/EV), hybrid electric (HEV, PHEV, and REEV), Fuel Cell Electric (FCEV), and solar cell electric (pv) vehicles.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A main-auxiliary box transmission is characterized by comprising:
the main gearbox comprises an input shaft assembly, an output shaft assembly and a gear shifting mechanism, wherein the input shaft assembly is used for transmitting the power of a vehicle power device to the output shaft assembly, and the gear shifting mechanism is used for shifting gears of the main gearbox;
the auxiliary gearbox is in transmission connection with the output shaft assembly through a clutch device, and the clutch device is used for switching on or switching off power transmission between the auxiliary gearbox and the output shaft assembly;
when the output shaft assembly and the auxiliary gearbox are in a disconnected state, the power output by the output shaft assembly is output to the transmission shaft, and when the output shaft assembly and the auxiliary gearbox are in a connected state, the power output by the output shaft assembly is output to the transmission shaft after being decelerated by the auxiliary gearbox.
2. The primary-secondary case transmission of claim 1, wherein the secondary transmission includes a secondary case input shaft that rotates the secondary case input gear, a secondary case output shaft that meshes with the secondary case output gear, and a secondary case output gear that rotates the secondary case output shaft.
3. The main-auxiliary case transmission of claim 2, wherein the auxiliary case input gear and the auxiliary case input shaft are of an integral construction, and the auxiliary case output gear and the auxiliary case output shaft are of an integral construction.
4. The primary-secondary case transmission of claim 2, wherein the secondary case input gear is fixedly connected to the secondary case input shaft and the secondary case output gear is fixedly connected to the secondary case output shaft.
5. The transmission of claim 2, wherein the range input shaft is splined and the range input shaft is coupled to the clutching device by a keyway.
6. A transmission as claimed in claim 2, wherein the secondary box input shaft is provided with ball bearings at both ends, the secondary box input shaft being rotationally connected to the casing of the secondary transmission by means of ball bearings.
7. The transmission of claim 2, wherein tapered bearings are provided at opposite ends of the output shaft, and the tapered surfaces of the tapered bearings at the opposite ends are opposite, and the output shaft is rotatably connected to the casing of the sub transmission case by the tapered bearings.
8. The transmission according to any one of claims 1 to 7, wherein the input shaft assembly is provided with an input shaft, a first-speed input gear, a second-speed input gear, a third-speed input gear, and a fourth-speed input gear, the first-speed input gear, the third-speed input gear, the fourth-speed input gear, and the second-speed input gear being arranged in this order in an axial direction of the input shaft, and the output shaft assembly is provided with an output shaft, a first-speed output gear that meshes with the first-speed input gear, a second-speed output gear that meshes with the second-speed input gear, a third-speed output gear that meshes with the third-speed input gear, and a fourth-speed output gear that meshes with the fourth-speed input gear.
9. The main-auxiliary box transmission of claim 8, wherein the shift mechanism includes a first synchronizer provided on the input shaft and a second synchronizer provided on the output shaft, the first synchronizer being for synchronizing rotation of the input shaft of the transmission with the two-speed input gear or the four-speed input gear, the second synchronizer being for synchronizing rotation of the output shaft of the transmission with the one-speed output gear or the three-speed output gear.
10. A vehicle characterized by comprising the main-auxiliary transmission of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122366391.7U CN215720724U (en) | 2021-09-28 | 2021-09-28 | Main and auxiliary box transmission and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122366391.7U CN215720724U (en) | 2021-09-28 | 2021-09-28 | Main and auxiliary box transmission and vehicle |
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| CN215720724U true CN215720724U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949708A (en) * | 2022-12-28 | 2023-04-11 | 江苏新能源汽车研究院有限公司 | Three-gear speed change system and driving system of heavy new energy automobile and working method of three-gear speed change system |
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2021
- 2021-09-28 CN CN202122366391.7U patent/CN215720724U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949708A (en) * | 2022-12-28 | 2023-04-11 | 江苏新能源汽车研究院有限公司 | Three-gear speed change system and driving system of heavy new energy automobile and working method of three-gear speed change system |
| CN115949708B (en) * | 2022-12-28 | 2023-10-03 | 江苏新能源汽车研究院有限公司 | Three-gear speed change system and driving system of heavy new energy automobile and working method of three-gear speed change system and driving system |
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