CN218594121U - Driving drive system and engineering work vehicle - Google Patents
Driving drive system and engineering work vehicle Download PDFInfo
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- CN218594121U CN218594121U CN202223137264.0U CN202223137264U CN218594121U CN 218594121 U CN218594121 U CN 218594121U CN 202223137264 U CN202223137264 U CN 202223137264U CN 218594121 U CN218594121 U CN 218594121U
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Abstract
The utility model belongs to the technical field of engineering machinery, in particular to a driving system and an engineering operation vehicle, wherein the driving system comprises a power input component, a first transmission shaft and a transmission gear set, the power input component comprises a first motor and a second motor, and the output power of the first motor is greater than that of the second motor; two ends of the first transmission shaft are respectively connected with the second motor and the power output part; the transmission gear set is arranged on the first transmission shaft and comprises a plurality of gears which are sequentially meshed with each other, and the number of teeth of the gear connected with the first motor is smaller than that of the gear connected with the second motor. The utility model discloses the power source of the operating condition of going of actuating system and the operating condition of going of transition is distinguished, designs respectively and actual power demand assorted motor drive scheme, has effectively utilized the high-efficient work interval of first motor and second motor, has reduced meaningless energy loss, has promoted economic nature and duration.
Description
Technical Field
The utility model belongs to the technical field of engineering machine tool, especially, relate to a driving system and engineering work vehicle travel.
Background
The engineering operation vehicle needs to be equipped with a driving system, the existing driving system uses a parallel driving mode of double high-speed motors with speed reducers, and the two high-speed motors are connected in parallel to drive two pairs of speed reduction gears with the same speed ratio, so that the power output drive axle has the same output power under various working conditions. Taking the road washing and sweeping vehicle as an example, when the road washing and sweeping vehicle carries out slower washing and sweeping operation, the driving system that traveles is in low-speed low-torque working condition, and two high-speed motors work simultaneously, and the torque output is half of the demand torque, leads to the inefficiency interval that high-speed motor's efficiency is in, and operating efficiency is extremely low, and the high-efficient area of two high-speed motors can not be utilized, has increased meaningless energy loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a driving system and engineering work vehicle travel, aim at solving the low and serious technical problem of energy loss of high speed motor's among the prior art operating efficiency.
In order to achieve the above object, the present invention provides a driving system for traveling, wherein the driving system for traveling includes:
the power input assembly comprises a first motor and a second motor, and the output power of the first motor is greater than that of the second motor;
the two ends of the first transmission shaft are respectively connected with the second motor and the power output piece; and
and the transmission gear set is arranged on the first transmission shaft and comprises a plurality of gears which are sequentially meshed with each other, and the number of teeth of the gear connected with the first motor is less than that of the gear connected with the second motor.
The embodiment of the utility model provides an in, drive gear group is including the first gear and the second gear of meshing in proper order, and the actuating system that traveles still includes the second transmission shaft that first motor and first gear are connected respectively at both ends, and the second gear is installed on first transmission shaft.
In the embodiment of the present invention, the operating speed ratio of the first gear to the second gear is 3.53:1.
the embodiment of the utility model provides an in, be equipped with first clutch on the first transmission shaft, and be located between second motor and the second gear, be equipped with the second clutch on the second transmission shaft.
In an embodiment of the present invention, the first transmission shaft and the power take-off member are connected by a flange.
The embodiment of the present invention provides a maximum torque of the first motor is greater than a maximum torque of the second motor, and the maximum torque of the first motor is smaller than 1300Nm, and the maximum torque of the second motor is smaller than 800Nm.
The embodiment of the utility model provides an in, the maximum rotational speed of first motor is greater than the maximum rotational speed of second motor, and the maximum rotational speed of first motor is less than 10000rpm, and the maximum rotational speed of second motor is less than 1500rpm.
In an embodiment of the present invention, there is provided an engineering work vehicle including the driving system as described above.
The embodiment of the utility model provides an in, the actuating system that traveles still includes the central controller who is connected with the equal electricity of first motor and second motor, and the central controller is used for torque output value and the rotational speed output value according to the first motor of the state control of traveling of engineering work vehicle and second motor.
The embodiment of the utility model provides an in, power take off is the transaxle, and the transaxle is used for transmitting power to each wheel of engineering work vehicle to can realize the differential rotation between a plurality of wheels.
Through the technical scheme, the embodiment of the utility model provides a driving system that traveles has following beneficial effect:
the utility model distinguishes the power sources of the operation running working condition and the transition running working condition of the running driving system, and respectively designs the motor driving scheme matched with the actual power demand, when the operation running working condition is met, the running driving system is in a low-speed low-torque working range, and at the moment, a second motor with low power is used, and the power is directly driven to output to a power output part; when the driving system runs in a transition running working condition, the running driving system needs to provide large rotating speed and torque, and at the moment, the first motor with high power is used for reducing the speed and increasing the torque of power through the transmission gear set and outputting the power to the power output part. The utility model discloses effectively solved the low and serious technical problem of energy loss of operating efficiency of high-speed motor among the prior art, effectively utilized the high-efficient work interval of first motor and second motor, reduced meaningless energy loss, promoted economic nature and duration.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention, but do not constitute a limitation of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a travel drive system according to an embodiment of the present invention.
Description of the reference numerals
| Reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
32 | |
| 20 | Second |
71 | |
| 31 | |
72 | |
| 52 | |
40 | Power take-off |
| 51 | |
60 | Flange |
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.
The driving system is used for driving the engineering operation vehicle to run, and the running working conditions of the engineering operation vehicle are generally divided into two types, namely, operation running working conditions and transition running working conditions. Taking a road sweeper as an example, when the road sweeper is in an operation running working condition, the road sweeper needs to simultaneously carry out road sweeping operation and running in a low-speed state, the speed of the road sweeper in the state is generally maintained between 10 and 25km/h, and a driving motor is in a low-speed low-torque working interval; when the road cleaning vehicle is in the working condition of traveling in a transition, the road cleaning vehicle needs to go to the next working place quickly to work, and not only needs higher traveling speed, but also needs to meet the requirements of the traveling road conditions such as climbing, so that the traveling driving system needs to provide large rotating speed and torque, and the driving motor can be in a working interval with high speed and high torque at the moment.
When current actuating system that traveles was in the operation operating mode, driving motor was in low-speed low moment of torsion inefficiency work interval, and the high-efficient district of motor fails to obtain utilizing, to this problem, the utility model provides an actuating system that traveles.
The following describes a travel drive system according to the present invention with reference to the drawings.
As shown in fig. 1, in an embodiment of the present invention, a driving system is provided, wherein the driving system includes a power input assembly, a first transmission shaft 31 and a transmission gear set, the power input assembly includes a first motor 10 and a second motor 20, and the output power of the first motor 10 is greater than the output power of the second motor 20; the two ends of the first transmission shaft 31 are respectively connected with the second motor 20 and the power output part 40; the transmission gear set is installed on the first transmission shaft 31 and includes a plurality of gears sequentially engaged with each other, and the number of teeth of the gear connected to the first motor 10 is smaller than the number of teeth of the gear connected to the second motor 20.
The first transmission shaft 31 is used for transmitting the power of the second motor 20 to the power output member 40, meanwhile, the first motor 10 is in transmission connection with the second motor 20 through the transmission gear set, and the number of teeth of the gear connected with the first motor 10 is smaller than that of the gear connected with the second motor 20, so that the transmission gear set actually achieves the effects of reducing the rotating speed and increasing the rotating torque of the first motor 10, and the torque obtained by the power output member 40 when the first motor 10 supplies energy and outputs energy is effectively increased.
And simultaneously, the technical scheme of the utility model the operation of the actuating system that will go driving is gone the operating mode and is gone the power source of operating mode and transition and distinguish, design respectively with actual power demand assorted motor drive scheme. Specifically, when the driving system is in the working driving condition, the second motor 20 with lower power starts to output power, the first motor 10 with higher power does not start to work, at this time, the second motor 20 is used as a sole power source to drive the power output part 40 alone, the transmission gear does not perform operations of speed reduction and torque increase, and the power output part 40 is directly driven by the second motor 20 to meet the working requirement; when the driving system is in a transition driving working condition, the first motor 10 with larger power starts to output power, the second motor 20 with smaller power does not start to work, at the moment, the first motor 10 is used as a sole power source to drive the power output part 40 independently, the power output by the first motor 10 is subjected to speed reduction and torque increase through a transmission gear and then is output to the power output part 40, and the power requirement of the transition driving working condition can be met through the first motor 10 subjected to speed reduction and torque increase.
The utility model discloses a matching of first motor 10 of control and second motor 20 is used, the operation is gone the operating mode and is used the low-power second motor 20 of low-speed little moment of torsion, directly drive output power to power take off 40, use the first motor 10 of high-speed big moment of torsion high power during the operating mode of going of transition, through drive gear group with power speed reduction increase turn round and export to power take off 40, improve the energy availability factor of the actuating system that traveles, effectively reduced meaningless energy loss, economy and duration have been promoted.
Preferably, the number of the gears in the transmission gear set is two, as shown in fig. 1, the transmission gear set includes a first gear 51 and a second gear 52 which are engaged in sequence, the driving drive system further includes a second transmission shaft 32 whose two ends are respectively connected to the first motor 10 and the first gear 51, the second gear 52 is installed on the first transmission shaft 31, and the power of the first motor 10 is transmitted to the power output member 40 through the second transmission shaft 32, the first gear 51, the second gear 52 and the first transmission shaft 31 in sequence. Since the first gear 51 is engaged with the second gear 52, and the number of teeth of the first gear 51 is smaller than that of the second gear 52, the transmission gear set can reduce the speed and increase the torque of the fixed power when transmitting the power of the first motor 10.
However, the scope of the present invention is not limited to this, and the transmission gear set for reducing speed and increasing torque may include gears of other numbers, and it is only necessary that the number of teeth of the gear connected to the first motor 10 is smaller than the number of teeth of the gear connected to the second motor 20.
The first transmission shaft 31 is provided with a first clutch 71 and is positioned between the second motor 20 and the second gear 52, and the second transmission shaft 32 is provided with a second clutch 72. The utility model discloses a control first clutch 71 and second clutch 72 come the power of adjustment first motor 10 and second motor 20 to insert and break off. When the running driving system is in the working running working condition, the first clutch 71 is closed, the second clutch 72 is opened, and the second motor 20 drives the power output part 40 alone; when the driving system is in the transition driving condition, the first clutch 71 is opened, the second clutch 72 is closed, and the first motor 10 alone drives the power output member 40.
Preferably, first transmission shaft 31 is connected with power take off 40 through flange 60, uses flange 60 to connect and has good simple operation nature to the junction can bear great pressure, has guaranteed the transmission stability between first transmission shaft 31 and the power take off 40, but the utility model discloses an application scope is not limited to this, can also be other transmission connected modes such as spline connection.
In an embodiment of the present invention, the engineering work vehicle based on 18 tons weight performs calculation design of each parameter, specifically, the performance of the first motor 10 and the deceleration degree of the transmission gear set are calculated and designed according to the required maximum climbing gradient and the maximum vehicle speed requirement of the transition driving condition; the performance of the second motor 20 is calculated and designed according to the parameters of the running speed, the road gradient and the like of the operation running condition.
Wherein the maximum torque of the first motor 10 is greater than the maximum torque of the second motor 20, and the maximum torque of the first motor 10 is less than 1300Nm, and the maximum torque of the second motor 20 is less than 800Nm; the maximum rotating speed of the first motor 10 is greater than the maximum rotating speed of the second motor 20, the maximum rotating speed of the first motor 10 is less than 10000rpm, the maximum rotating speed of the second motor 20 is less than 1500rpm, and the operating rotating speed ratio of the first gear 51 to the second gear 52 is 3.53:1.
the utility model discloses the content of protecting is not limited to the concrete performance index that the engineering work vehicle based on 18 tons of weight designed more than, and the core content of protecting is for the performance of calculating second motor 20 according to the demand of operation operating mode, and the parameter of motor A's performance and drive gear group is calculated according to the demand of transition operating mode.
It should be noted that the scheme with the structure similar to the scheme is adopted, and different motor performances and transmission gear set parameters obtained by other tonnage engineering operation vehicles or other operation requirements are within the protection range of the scheme.
In an embodiment of the present invention, there is further provided an engineering work vehicle, which includes the above-mentioned driving system for driving, and has the advantages of all the above-mentioned embodiments because the engineering work vehicle adopts all the above-mentioned embodiments of the driving system for driving.
The driving system further comprises a central controller electrically connected with the first motor 10 and the second motor 20, wherein the central controller is used for controlling the torque output value and the rotating speed output value of the first motor 10 and the second motor 20 according to the driving state of the engineering operation vehicle, the physical characteristic that the rotating speed is in inverse proportion to the torque when the power of the electric machine is unchanged is utilized, the torque output value is properly increased when the slope of the road surface is high, and the rotating speed output value is properly increased when the slope of the road surface is low, so that the operating efficiency of the first motor 10 and the operating efficiency of the second motor 20 can be further increased, and the high-efficiency interval of the first motor 10 and the high-efficiency interval of the second motor 20 are fully utilized.
In the embodiment of the present invention, the power take-off 40 is a drive axle, the drive axle is a mechanism for transmitting the rotation speed and the torque to the wheels at the end of the transmission system, and the drive axle can not only bear various stresses acting between the road surface and the frame or the vehicle body, but also can be used for realizing the differential rotation between a plurality of wheels.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A travel drive system for driving a work vehicle to travel, characterized by comprising:
the power input assembly comprises a first motor (10) and a second motor (20), and the output power of the first motor (10) is larger than that of the second motor (20);
a first transmission shaft (31) with two ends respectively connected with the second motor (20) and the power output part (40); and
and the transmission gear set is arranged on the first transmission shaft (31) and comprises a plurality of gears which are sequentially meshed with each other, and the number of teeth of the gear connected with the first motor (10) is less than that of the gear connected with the second motor (20).
2. Travel drive system according to claim 1, characterized in that said transmission gear set comprises a first gear (51) and a second gear (52) meshing in sequence, said travel drive system further comprising a second transmission shaft (32) connected at both ends to said first electric motor (10) and said first gear (51), respectively, said second gear (52) being mounted on said first transmission shaft (31).
3. Travel drive system according to claim 2, characterized in that the ratio of the operating speeds of the first gear (51) and the second gear (52) is 3.53:1.
4. travel drive system according to claim 2, characterized in that a first clutch (71) is provided on the first transmission shaft (31) and between the second electric machine (20) and the second gear wheel (52), and a second clutch (72) is provided on the second transmission shaft (32).
5. Travel drive system according to claim 2, characterized in that the first transmission shaft (31) is connected with the power take-off (40) by a flange (60).
6. The travel drive system according to any one of claims 1 to 5, characterized in that the maximum torque of the first electric motor (10) is greater than the maximum torque of the second electric motor (20), and the maximum torque of the first electric motor (10) is less than 1300Nm, and the maximum torque of the second electric motor (20) is less than 800Nm.
7. The running drive according to any one of claims 1 to 5, characterized in that the maximum rotational speed of the first electric machine (10) is greater than the maximum rotational speed of the second electric machine (20), and the maximum rotational speed of the first electric machine (10) is less than 10000rpm, and the maximum rotational speed of the second electric machine (20) is less than 1500rpm.
8. A work vehicle, characterized in that it comprises a travel drive system according to any one of claims 1-7.
9. The work vehicle according to claim 8, characterized in that the driving drive system further comprises a central controller electrically connected to both the first electric machine (10) and the second electric machine (20), the central controller being adapted to control the torque output value and the rotational speed output value of the first electric machine (10) and the second electric machine (20) in dependence of the driving state of the work vehicle.
10. Work vehicle according to claim 8, characterized in that the power take-off (40) is a drive axle for transmitting power to the respective wheels of the work vehicle and enabling differential rotation between a plurality of the wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223137264.0U CN218594121U (en) | 2022-11-24 | 2022-11-24 | Driving drive system and engineering work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223137264.0U CN218594121U (en) | 2022-11-24 | 2022-11-24 | Driving drive system and engineering work vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218594121U true CN218594121U (en) | 2023-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223137264.0U Active CN218594121U (en) | 2022-11-24 | 2022-11-24 | Driving drive system and engineering work vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN218594121U (en) |
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2022
- 2022-11-24 CN CN202223137264.0U patent/CN218594121U/en active Active
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