CN217761986U - Pure electric heavy truck gearbox with rear power takeoff - Google Patents

Abstract

The utility model discloses a electricelectric moves gearbox for heavy truck with rearmounted power takeoff, include: the power take-off device comprises a driving motor, an input shaft, a power take-off, an intermediate shaft, an output shaft and a shell; the input shaft, the intermediate shaft and the output shaft are respectively supported on a shell through bearings, the input shaft is located at one end of the shell, the output shaft is located at the other end of the shell, the intermediate shaft is located between the input shaft and the output shaft, the left end of the input shaft is connected with the driving motor, and the right end of the input shaft is connected with the power takeoff; the input and output different shafts are arranged, the power takeoff is arranged at the rear, the axial structure of the gearbox can be effectively shortened, the whole vehicle structure arrangement is more benefited, the used first gear, the second gear, the third gear, the fourth gear and the fifth gear are all in a helical gear structure, the meshing performance is good, the transmission is stable, the bearing capacity is strong, the structure is more compact than a straight gear, and the size is smaller.

Description

Pure electric heavy truck gearbox with rear power takeoff

Technical Field

The utility model relates to an electric automobile transmission technical field, concretely relates to electricelectric moves gearbox for heavy truck with rearmounted power takeoff.

Background

Environmental protection and energy conservation are important development directions facing the world in the twenty-first century, so that in the automobile industry, new energy automobiles adopting unconventional fuels as power sources gradually rush into the automobile market, a plurality of policies are issued by the country to encourage the development of the new energy automobile industry, and more truck enterprises have launched pure electric heavy truck products in recent years, domestic and international markets and the like.

Reference CN210799914U provides a reduction gearbox structure with a power takeoff. However, the comparison file adopts the coaxial arrangement of input and output, and the power takeoff is installed laterally, so that the problem that the power takeoff is not arranged in enough space due to the fact that the size of the gearbox is too large, and the structural arrangement of the gearbox on the whole vehicle is not facilitated is not solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a electricelectric moves gearbox for heavy truck with rearmounted power takeoff to solve the coaxial arrangement of input and output, the power takeoff is too big and leads to the power takeoff not to have sufficient spatial arrangement for the side installation gearbox volume, and then is unfavorable for the gearbox structural arrangement problem on whole car.

The utility model provides a electricelectric moves gearbox for heavy truck with rearmounted power takeoff, include: the power take-off device comprises a driving motor, an input shaft, a power take-off, an intermediate shaft, an output shaft and a shell;

the input shaft, the intermediate shaft and the output shaft are respectively supported on a shell through bearings, the input shaft is located at one end of the shell, the output shaft is located at the other end of the shell, the intermediate shaft is located between the input shaft and the output shaft, the input shaft, the intermediate shaft and the output shaft are parallel and vertical, the left end of the input shaft is connected with the driving motor, and the right end of the input shaft is connected with the power takeoff.

Further, be equipped with gearshift on the input shaft, gearshift includes: the gear shifting device comprises a gear shifting sleeve, a first gear and a third gear, wherein the first gear is arranged on one side of the gear shifting sleeve, the third gear is arranged on the other side of the gear shifting sleeve, and the first gear and the third gear are rotatably arranged on an input shaft.

Furthermore, a second gear and a fourth gear are arranged on the intermediate shaft, the third gear is meshed with the fourth gear, the first gear is meshed with the second gear, the second gear and the fourth gear are fixedly arranged on the intermediate shaft, and the second gear, the fourth gear and the intermediate shaft synchronously rotate.

Furthermore, a fifth gear is arranged on the output shaft, the fifth gear is fixedly installed on the output shaft, the fifth gear and the output shaft synchronously rotate, the fourth gear is meshed with the fifth gear, and the right end of the output shaft is connected with the bridge.

Further, the first gear, the second gear, the third gear, the fourth gear and the fifth gear all adopt helical gear structures.

The utility model discloses the beneficial effect who produces as follows: the utility model provides a pure electric heavy truck gearbox with a rear power takeoff, which is driven by a motor and can effectively utilize the speed characteristic and the high-efficiency operation area of the driving motor; the input and output different shafts are arranged, the power takeoff is arranged at the rear, the axial structure of the gearbox can be effectively shortened, the whole vehicle structure arrangement is more benefited, the used first gear, the second gear, the third gear, the fourth gear and the fifth gear are all in a helical gear structure, the meshing performance is good, the transmission is stable, the bearing capacity is strong, the structure is more compact than a straight gear, and the size is smaller.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a transmission case for a pure electric heavy truck with a rear power takeoff provided by the utility model.

Illustration of the drawings: 1-driving motor, 2-input shaft, 3-third gear, 4-shifting gear sleeve, 5-first gear, 6-power takeoff, 7-intermediate shaft, 8-second gear, 9-bridge, 10-output shaft, 11-shell, 12-fifth gear, 13-fourth gear and 14-shifting mechanism.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, and in the drawings, the thicknesses of layers and regions are exaggerated for clarity and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1, the present invention provides a transmission for a pure electric heavy truck with a rear power takeoff, including: the device comprises a driving motor 1, an input shaft 2, a power takeoff 6, an intermediate shaft 7, an output shaft 10 and a shell 11;

wherein, input shaft 2 the jackshaft 7 output shaft 10 supports on casing 11 through the bearing respectively, input shaft 2 is located the one end position of casing 11, output shaft 10 is located the other end position of casing 11, jackshaft 7 is located input shaft 2 with the intermediate position of output shaft 10, input shaft 2 the jackshaft 7 output shaft 10 is parallel and upright, the left end of input shaft 2 with driving motor 1 is connected, input shaft 2 right-hand member with power takeoff 6 is connected, and the different axle of input output arranges, and the power takeoff rear-mounted can effectively shorten the axial structure of gearbox, more is of value to whole car structural arrangement.

Specifically, be equipped with gearshift 14 on input shaft 2, gearshift 14 includes: the gearbox comprises a gear shifting sleeve 4, a first gear 5 and a third gear 3, wherein the first gear 5 is arranged on one side of the gear shifting sleeve 4, the third gear 3 is arranged on the other side of the gear shifting sleeve 4, the first gear 5 and the third gear 3 are rotatably arranged on the input shaft 2, and the gear shifting mechanism 14 can enable the gearbox to be lifted from first gear to second gear.

Specifically, the intermediate shaft 7 is provided with a second gear 8 and a fourth gear 13, the third gear 3 is engaged with the fourth gear 13, the first gear 5 is engaged with the second gear 8, the second gear 8 and the fourth gear 13 are fixedly arranged on the intermediate shaft 7, and the second gear 8, the fourth gear 13 and the intermediate shaft 7 rotate synchronously.

Specifically, a fifth gear 12 is arranged on the output shaft 10, the fifth gear 12 is fixedly mounted on the output shaft 10, the fifth gear 12 and the output shaft 10 rotate synchronously, the fourth gear 13 is engaged with the fifth gear 12, and the right end of the output shaft 10 is connected with the bridge 9.

Specifically, the first gear 5, the second gear 8, the third gear 3, the fourth gear 13 and the fifth gear 12 all adopt a helical gear structure, so that the meshing performance is good, the transmission is stable, the bearing capacity is strong, the structure is more compact than a straight gear, and the volume is smaller.

The utility model provides a pair of electricelectric moves gearbox for heavily blocking with rearmounted power takeoff, theory of operation: when the vehicle starts, the gear shifting mechanism is controlled to enable the gear shifting sleeve 4 to be combined with the combined teeth connected with the third gear 3 on the input shaft 2 to form a first gear. The power transmission path at this time is: the drive motor 1 → the input shaft 2 → the shift sleeve 4 → the third gear 3 → the fourth gear 13 → the fifth gear 12 → the output shaft 10 → the bridge 9; the power transmission path of the power takeoff is as follows: drive motor 1 → input shaft 2 → power take-off 6. In the process, as the driving motor has continuous power output, the input shaft connected with the driving motor keeps continuous operation, and the power takeoff is connected with the right end of the input shaft, so that the power takeoff can have power output when the vehicle is stopped.

As the vehicle speed increases, the transmission is shifted from first gear to second gear. The process is as follows:

the whole vehicle control system sends out a command that the gearbox is lifted from a first gear to a second gear, the driving motor keeps a driving mode, and after the torque of the driving motor is reduced until the torque is reduced to 0, the gear shifting gear sleeve 4 is separated from the combined teeth connected with the third gear 3 on the input shaft 2; then, the speed of the driving motor is adjusted to enable the rotating speed of the gear shifting sleeve 4 to be consistent with the rotating speed of the first gear 5, and then the gear shifting mechanism enables the gear shifting sleeve 4 to be combined with the combined teeth connected with the first gear 5 to form two gears. During the period, the driving motor is continuously driven, the vehicle still has continuous power output, the gear shifting smoothness is improved, and the driver does not feel power interruption.

The second-gear power transmission path of the gearbox is as follows: the drive motor 1 → the input shaft 2 → the shift sleeve 4 → the first gear 5 → the second gear 8 → the fourth gear 13 → the fifth gear 12 → the output shaft 10 → the bridge 9; the power transmission path of the power takeoff is as follows: drive motor 1 → input shaft 2 → power take-off 6.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that, for example, embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A pure electric gearbox for heavy truck with a rear power takeoff is characterized by comprising: the device comprises a driving motor (1), an input shaft (2), a power takeoff (6), an intermediate shaft (7), an output shaft (10) and a shell (11);

the input shaft (2), jackshaft (7), output shaft (10) support on casing (11) through the bearing respectively, input shaft (2) are located the one end position of casing (11), output shaft (10) are located the other end position of casing (11), jackshaft (7) are located input shaft (2) with the intermediate position of output shaft (10), input shaft (2), jackshaft (7) output shaft (10) are parallel and upright, the left end of input shaft (2) with driving motor (1) is connected, input shaft (2) right-hand member with power takeoff (6) are connected.

2. A purely electric heavy truck gearbox with rear power take-off according to claim 1, characterized in that a gear shift mechanism (14) is provided on the input shaft (2), said gear shift mechanism (14) comprising: the gear shifting device comprises a gear shifting sleeve (4), a first gear (5) and a third gear (3), wherein the first gear (5) is arranged on one side of the gear shifting sleeve (4), the third gear (3) is arranged on the other side of the gear shifting sleeve (4), and the first gear (5) and the third gear (3) are rotatably arranged on an input shaft (2).

3. The pure electric heavy truck gearbox with the rear power takeoff device as recited in claim 2, characterized in that a second gear (8) and a fourth gear (13) are arranged on the intermediate shaft (7), the third gear (3) is meshed with the fourth gear (13), the first gear (5) is meshed with the second gear (8), the second gear (8) and the fourth gear (13) are fixedly arranged on the intermediate shaft (7), and the second gear (8) and the fourth gear (13) rotate synchronously with the intermediate shaft (7).

4. A purely electric gearbox for heavy trucks with rear-mounted power take-off according to claim 3, characterised in that said output shaft (10) is provided with a fifth gear wheel (12), said fifth gear wheel (12) being fixedly mounted on said output shaft (10), said fifth gear wheel (12) rotating synchronously with said output shaft (10), a fourth gear wheel (13) meshing with said fifth gear wheel (12), the right end of the output shaft (10) being connected to the bridge (9).

5. The gearbox with the rear power takeoff for the full electric heavy truck as claimed in claim 4, characterized in that the first gear (5), the second gear (8), the third gear (3), the fourth gear (13) and the fifth gear (12) are all of helical gear structures.

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