Double power take-off device and control method thereof

Abstract

The invention belongs to the field of transmission, and discloses a double power take-off device and a control method thereof.The device comprises a motor, the output end of the motor is connected with an input shaft, and the input shaft is provided with a first input shaft gear, a second input shaft gear and a third input shaft gear which are rigidly connected; the two sides of the first input shaft gear are meshed with a first gear and a fourth gear respectively, the first gear is meshed with a second gear, the first gear and the second gear act on a first output flange in a two-stage speed reduction mode, the fourth gear acts on a second output flange in a one-stage speed reduction mode, and the first output flange and the second output flange are opposite in rotation direction. The input end of the motor is connected with the motor controller; two rotating speed outputs in different rotating directions can be achieved, the working requirements of pumps in different rotating directions can be met, gears of two speed ratios are arranged on each output power path, output power is accurately adjusted according to the actual requirements of different hydraulic pumps, and the working efficiency and stability are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transmission and relates to a double-torque device and a control method thereof. BACKGROUND

[0002] In recent years, the market penetration rate of new energy pure electric loaders has shown a trend of continuous increase. Compared with traditional fuel loaders, new energy pure electric loaders have many advantages such as zero emission, low noise, low operating cost and so on. More and more engineering construction projects tend to choose new energy pure electric loaders to meet environmental protection requirements and reduce operating costs.

[0003] In the traditional system, there is a large energy loss in the flow process of hydraulic oil, such as along the way pressure loss, local pressure loss, etc., which reduces the transmission efficiency. At the same time, the control mode of the traditional hydraulic system is relatively simple, and it is difficult to realize accurate flow and pressure control, which leads to the fact that the energy output by the hydraulic pump cannot be fully utilized under some load conditions, further increasing the energy consumption.

[0004] In addition, a design method of connecting multiple hydraulic pumps in series with one power source is usually adopted. Although it simplifies the structure of the system to a certain extent, it will affect each other, leading to unstable pressure and flow of the system. When one of the hydraulic pumps fails, it may affect the normal operation of the entire system, reducing reliability and maintainability. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a double-torque device and a control method thereof, which adopts double-output power to realize the output of two different rotational speed outputs of different directions, and meets the needs of different hydraulic pumps.

[0006] In order to achieve the above purpose, the application adopts the following technical solutions:

[0007] The application provides a double-torque device, which comprises a motor, the output end of the motor is connected with an input shaft, a first input shaft gear, a second input shaft gear and a third input shaft gear are arranged on the input shaft and are rigidly connected, the first input shaft gear is toothed with a first gear and a fourth gear on both sides respectively, the first gear is toothed with a second gear, the first gear and the second gear are used for two-stage speed reduction on a first output flange, the fourth gear is used for one-stage speed reduction on a second output flange, the rotation directions of the first output flange and the second output flange are opposite, and the first output flange and the second output flange are used for connecting hydraulic pump loads, and the input end of the motor is connected with a motor controller.

[0008] Further, the first gear sleeve is arranged at one end of the first intermediate shaft, a third gear is arranged at the other end of the first intermediate shaft, the first gear, the first intermediate shaft and the third gear are rigidly connected, the third gear, the second input shaft gear and the first output shaft constant gear are in gear engagement, the first output shaft constant gear is rigidly connected with the second sliding sleeve combined gear and is floating on the first output shaft.

[0009] Further, the second gear sleeve is arranged at one end of the second intermediate shaft, a first sliding sleeve combined gear is arranged at the other end of the second intermediate shaft, the second gear, the second intermediate shaft and the first sliding sleeve combined gear are rigidly connected, the input end of the first output flange is connected with the first output shaft, and the first output shaft is rigidly connected with the C1 sliding sleeve spline.

[0010] Further, the C1 sliding sleeve is arranged on the C1 sliding sleeve spline and moves axially.

[0011] Further, the fourth gear sleeve is arranged at one end of the third intermediate shaft, a third sliding sleeve combined gear is arranged at the other end of the third intermediate shaft, the fourth gear, the third intermediate shaft and the third sliding sleeve combined gear are rigidly connected.

[0012] Further, the C2 sliding sleeve is arranged on the C2 sliding sleeve spline and moves axially.

[0013] Further, the third input shaft gear is rigidly connected with the second output shaft constant gear, the second output shaft constant gear and the fourth sliding sleeve combined gear are rigidly connected and are floating on the second output shaft.

[0014] The application also provides a control method of the double power take-off device, based on the double power take-off device, comprising the following steps: collecting the load request signal of the first output flange, obtaining the first target speed M N1 of the motor

[0015] Collecting the load request signal of the second output flange, obtaining the second target speed M N2 of the motor

[0016] Comparing the first target speed M N1 of the motor with the second target speed M N2 of the motor, taking the smaller value as the target speed of the motor; inputting the target speed of the motor into the motor controller to drive the motor.

[0017] Further, the first target speed M N1 of the motor includes a first target first gear speed and a first target second gear speed.

[0018] The first target first gear speed is PTO N1 × i c11

[0019] The first target two-gear rotating speed is: PTO N1 ×i c12

[0020] The first target two-gear rotating speed is: PTO N1 is a first output flange rotating speed target value, i c11 is a total speed ratio of a transmission path from the motor to the first output flange when the C1 sliding sleeve is in the first gear position, i c12 is a total speed ratio of a transmission path from the motor to the first output flange when the C1 sliding sleeve is in the second gear position;

[0021] The second target rotating speed M N1 comprises a second target first-gear rotating speed and a second target second-gear rotating speed;

[0022] The second target first-gear rotating speed is: PTO N2 ×i c21

[0023] The second target two-gear rotating speed is: PTO N2 ×i c22

[0024] The second target two-gear rotating speed is: PTO N2 is a second output flange rotating speed target value, i c21 is a total speed ratio of a transmission path from the motor to the second output flange when the C2 sliding sleeve is in the first gear position, i c22 is a total speed ratio of a transmission path from the motor to the second output flange when the C2 sliding sleeve is in the second gear position.

[0025] Compared with the prior art, the application has the following beneficial technical effects:

[0026] The double-power-taking device can realize rotating speed output of two different rotating directions, can meet the working requirements of different rotating pumps, does not need to additionally increase a complex rotating conversion device, adopts the double-output design, can significantly reduce the suspension weight and the elongation length caused by the series connection of multiple hydraulic pumps, and can accurately adjust the output power according to the actual requirements of different hydraulic pumps, and improve the working efficiency and stability.

[0027] The double-power-taking device adopts a high-speed and small-torque motor, a gear box is used for gear transmission, high-speed rotating motion output by the motor is subjected to speed reduction processing, the torque is multiplied, the torque finally output after the conversion of the gear box can easily meet the working requirements of various high loads and high precision. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic view of the double-power-taking device.

[0029] Figure 2 Figure 1 is a transmission route map of a dual power take-off device working mode 0 in an embodiment of the present application;

[0030] Figure 3 Figure 2 is a transmission route map of a dual power take-off device working mode 1 in an embodiment of the present application;

[0031] Figure 4 Figure 3 is a transmission route map of a dual power take-off device working mode 2 in an embodiment of the present application;

[0032] Figure 5 Figure 4 is a transmission route map of a dual power take-off device working mode 3 in an embodiment of the present application;

[0033] Figure 6 Figure 5 is a transmission route map of a dual power take-off device working mode 4 in an embodiment of the present application;

[0034] Figure 7 Figure 6 is a transmission route map of a dual power take-off device working mode 5 in an embodiment of the present application;

[0035] Figure 8 Figure 7 is a transmission route map of a dual power take-off device working mode 6 in an embodiment of the present application;

[0036] Figure 9 Figure 8 is a transmission route map of a dual power take-off device working mode 7 in an embodiment of the present application;

[0037] Figure 10 Figure 9 is a transmission route map of a dual power take-off device working mode 8 in an embodiment of the present application.

[0038] Reference signs:

[0039] 1 - motor; 2 - first gear; 3 - first intermediate shaft; 4 - second gear; 5 - second intermediate shaft; 6 - first sliding sleeve engaging tooth; 7 - C1 sliding sleeve spline; 8 - C1 sliding sleeve; 9 - second sliding sleeve engaging tooth; 10 - first output shaft constant tooth engaging gear; 11 - first output shaft; 12 - first output flange; 13 - third gear; 14 - second input shaft gear; 15 - third input shaft gear; 16 - second output shaft; 17 - second output flange; 18 - second output shaft constant tooth engaging gear; 19 - fourth sliding sleeve engaging tooth; 20 - C2 sliding sleeve spline; 21 - C2 sliding sleeve; 22 - third sliding sleeve engaging tooth; 23 - third intermediate shaft; 24 - fourth gear; 25 - first input shaft gear; 26 - input shaft; 27 - motor controller. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0041] Example 1

[0042] The present invention provides a dual power take-off device, such as Figure 1 As shown, it includes: a motor 1, the output end of the motor 1 is connected to the input shaft 26, and the input shaft 26 is provided with a rigidly connected first input shaft gear 25, a second input shaft gear 14, and a third input shaft gear 15. The first input shaft gear 25 is respectively meshed with the first gear 2 and the fourth gear 24 on both sides, and the first gear 2 is meshed with the second gear 4. The first output flange 12 is acted on by the first gear 2 and the second gear 4 through the secondary reduction, and the second output flange 17 is acted on by the first reduction of the fourth gear 24. The first output flange 12 and the second output flange 17 have opposite rotation directions and are both used to connect to the hydraulic pump load. The input end of the motor 1 is connected to the motor controller 27.

[0043] Specifically, the input end of the motor 1 is connected to the motor controller 27, the first output flange load request sensor and the second output flange load request sensor respectively input electrical signals to the vehicle controller through wires, and the vehicle controller inputs electrical signals to the motor controller 27 through wires. The motor controller 27 is connected to the motor 1 through a high-voltage copper wire and outputs high voltage and current to the motor 1.

[0044] The output end of motor 1 is connected to input shaft 26, which is rigidly connected to the first input shaft gear 25, the second input shaft gear 14, and the third input shaft gear 15, respectively. These gears are mounted sequentially from left to right. First input shaft gear 25 meshes with first gear 2 and fourth gear 24, respectively. First gear 2 meshes with second gear 4. First gear 2 is rigidly connected to third gear 13 via first intermediate shaft 3. Third gear 13 meshes with second input shaft gear 14 and first output shaft constant gear 10. First output shaft constant gear 10 is rigidly connected to second sleeve coupling gear 9 and floats on first output shaft 11. The input end of first output shaft 11 is connected to C1 sleeve spline 7, onto which C1 sleeve 8 is mounted. Second gear 4 is mounted on the input end of second intermediate shaft 5, and the output end of second intermediate shaft 5 is connected to first sleeve coupling gear 6.

[0045] Fourth gear 24 is installed on the input end of third intermediate shaft 23, the output end is connected with third sliding sleeve combined gear 22, and fourth gear 24, third intermediate shaft 23 and third sliding sleeve combined gear 22 are rigidly connected. Third input shaft gear 15 is rigidly connected with second output shaft common gear 18, second output shaft common gear 18 is rigidly connected with fourth sliding sleeve combined gear 19, and the fourth sliding sleeve combined gear 19 is floating on second output shaft 16. The input end of second output flange 17 is connected with second output shaft 16, and second output shaft 16 is rigidly connected with C2 sliding sleeve spline 20. C2 sliding sleeve 21 is sleeved on C2 sliding sleeve spline 20 and moves axially.

[0046] By means of the double output, the suspension weight and the elongation length of the series multiple hydraulic pumps can be significantly reduced, the vibration and noise problems of the hydraulic pumps are reduced, and the requirements of the two hydraulic pumps for opposite rotating directions are met.

[0047] Embodiment 2

[0048] The double power taking device has eight working modes, as shown in Table 1, wherein when C1 sliding sleeve 8 and C2 sliding sleeve are not working, as shown in Table 1. Figure 2

[0049] Table 1

[0050] Mode of operation C1 slide C2 slide 0 Empty Empty 1 Left Left 2 Right Left 3 Left Right 4 Right Right 5 Empty Right 6 Empty Left 7 Right Empty 8 Left Empty

[0051] The first working mode is as shown in Table 1, C1 sliding sleeve 8 moves to the left, and C2 sliding sleeve moves to the left. Figure 3

[0052] Specifically, motor 1 drives first input shaft gear 26 to rotate through input shaft 26, and first input shaft gear 26 is in mesh with first gear 2 and fourth gear 24 during rotation. First gear 2 is in mesh with second gear 4. The power is transmitted to first sliding sleeve combined gear 6 to rotate through second intermediate shaft 5, and acts on C1 sliding sleeve spline 7. The power is further transmitted through first output shaft 11 and acts on first output flange 12.

[0053] First input shaft gear 26 is in mesh with fourth gear 24 during rotation. Fourth gear 24 drives third sliding sleeve combined gear 22 to rotate through the transmission of intermediate shaft 23, and then transmits the power to C2 sliding sleeve spline 20. The power acts on second output flange 17 through second output shaft 16.

[0054] Embodiment 3

[0055] The second working mode of the double power taking device is as shown in Table 1, C1 sliding sleeve 8 moves to the right, and C2 sliding sleeve moves to the left. Figure 4

[0056] ​​​Specifically: motor 1 through the input shaft 26 force first input shaft gear 26 rotation, first input shaft gear 26 in the rotation process with the first gear 2 and the fourth gear 24 intermeshing.

[0057] The first gear 2 in the rotation process makes the third gear 13 rotate in the same direction, and in the rotation process, the third gear 13 is engaged with the first output shaft constant gear 10, and the power is transmitted to the C1 slide sleeve spline 7, and is acted on the first output flange 12 through the first output shaft 11.

[0058] The first input shaft gear 26 is engaged with the fourth gear 24 in the rotation process. The fourth gear 24 drives the third slide sleeve combination gear 22 to rotate by the transmission of the intermediate shaft 23, and then transmits power to the C2 slide sleeve spline 20, and the power is acted on the second output flange 17 through the second output shaft 16.

[0059] Example 4

[0060] The present application is a double power taking device, the third working mode, as shown in the figure, C1 slide sleeve 8 to the left, C2 slide sleeve to the right. Figure 5

[0061] Specifically: motor 1 through the input shaft 26 force first input shaft gear 26 rotation, first input shaft gear 26 in the rotation process with the first gear 2 and the fourth gear 24 intermeshing.

[0062] The first input shaft gear 26 makes the third input shaft gear 15 rotate in the same direction in the rotation process. In the rotation process, the third input shaft gear 15 is engaged with the second output shaft constant gear 18, and the power is transmitted to the C2 slide sleeve spline 20, and is acted on the second output flange 17 through the second output shaft 16.

[0063] Example 5

[0064] The present application is a double power taking device, the fourth working mode, as shown in the figure, C1 slide sleeve 8 to the right, C2 slide sleeve to the right. Figure 6

[0065] Specifically: motor 1 through the input shaft 26 force first input shaft gear 26 rotation, first input shaft gear 26 in the rotation process with the first gear 2 and the fourth gear 24 intermeshing.

[0066] ​​The first gear 2 rotates the third gear 13 in the same direction in the rotation process, and the third gear 13 is in mesh with the first output shaft constant gear 10 in the rotation process, so as to transmit power to the C1 slide sleeve spline 7, and the first output shaft 11 acts on the first output flange 12.

[0067] The first input shaft gear 26 rotates the third input shaft gear 15 in the same direction in the rotation process. In the rotation process, the third input shaft gear 15 is in mesh with the second output shaft constant gear 18, so as to transmit power to the C2 slide sleeve spline 20, and the second output shaft 16 acts on the second output flange 17.

[0068] Example 6

[0069] The fifth working mode of the double power taking device is shown in the figure, and the C2 slide sleeve moves to the right. Figure 7

[0070] Specifically, the motor 1 rotates the first input shaft gear 26 through the input shaft 26, and the first input shaft gear 26 is in mesh with the fourth gear 24 in the rotation process. The fourth gear 24 drives the third slide sleeve combination gear 22 to rotate by the transmission of the intermediate shaft 23, and then transmits power to the C2 slide sleeve spline 20, and the power acts on the second output flange 17 through the second output shaft 16.

[0071] Example 7

[0072] The sixth working mode of the double power taking device is shown in the figure, and the C2 slide sleeve moves to the left. Figure 8

[0073] Specifically, the motor 1 rotates the first input shaft gear 26 through the input shaft 26, and the first input shaft gear 26 is in mesh with the fourth gear 24 in the rotation process. The fourth gear 24 drives the third slide sleeve combination gear 22 to rotate by the transmission of the intermediate shaft 23, and then transmits power to the C2 slide sleeve spline 20, and the power acts on the second output flange 17 through the second output shaft 16.

[0074] Example 8

[0075] The seventh working mode of the double power taking device is shown in the figure, and the C1 slide sleeve moves to the right. Figure 9

[0076] Specifically, the motor 1 rotates the first input shaft gear 26 through the input shaft 26, and the first input shaft gear 26 is in mesh with the fourth gear 24 in the rotation process. The fourth gear 24 drives the third slide sleeve combination gear 22 to rotate by the transmission of the intermediate shaft 23, and then transmits power to the C2 slide sleeve spline 20, and the power acts on the second output flange 17 through the second output shaft 16.

[0077] Example 9 ​​​

[0078] The eighth working mode of the dual power take-off device is shown in the figure, the C1 sliding sleeve moves to the left. Figure 10

[0079] Specifically, the motor 1 forces the first input shaft gear 26 to rotate through the input shaft 26, and the first input shaft gear 26 is in meshing rotation with the first gear 2 and the fourth gear 24. The first gear 2 is in meshing rotation with the second gear 4. The power is transmitted to the first sliding sleeve combination gear 6 through the second intermediate shaft 5 to rotate and act on the C1 sliding sleeve spline 7, and the power is further transmitted through the first output shaft 11 to act on the first output flange 12.

[0080] Embodiment 10

[0081] The control method of the dual power take-off device comprises the following steps: the motor 1 is connected with a motor controller 27 at the input end, the first output flange load request sensor and the second output flange load request sensor respectively input electric signals to the vehicle controller through wires, the vehicle controller inputs electric signals to the motor controller 27 through wires, the motor controller 27 is connected with the motor 1 through high-voltage copper wires, and outputs high voltage and current to the motor 1. The load request signal of the first output flange 12 is collected through the first output flange load request sensor, and the load request signal of the second output flange 17 is collected through the second output flange load request sensor.

[0082] The load request signal of the first output flange 12 is collected, and the first target speed M N1 of the motor is obtained.The load request signal of the second output flange 17 is collected, and the second target speed M N2 of the motor is obtained. The first target speed M N1 of the motor is compared with the second target speed M N2 of the motor, and the smaller value is taken as the target speed of the motor. The target speed of the motor is input to the motor controller 27 to drive the motor 1.

[0083] The first target speed M N1 includes a first target first gear speed and a first target second gear speed.

[0084] The first target first gear speed is: PTO N1 × i c11

[0085] The first target second gear speed is: PTO N1 × i c12

[0086] Wherein, PTO N1 is the target value of the first output flange speed, i c11 is the total speed ratio of the transmission path from the motor to the first output flange when the C1 sliding sleeve is in the first gear position, ic12 the total speed ratio of the transmission path from the motor to the first output flange when the C1 sleeve is in the second gear position;

[0087] the second target one-gear speed is M N1 comprising a second target one-gear speed and a second target two-gear speed;

[0088] the second target one-gear speed is M N2 x i c21

[0089] the first target two-gear speed is M N2 x i c22

[0090] wherein M N2 is a target value of the second output flange speed, i c21 is the total speed ratio of the transmission path from the motor to the second output flange when the C2 sleeve is in the first gear position, i c22 is the total speed ratio of the transmission path from the motor to the second output flange when the C2 sleeve is in the second gear position.

[0091] In summary, after the input speed and torque of the motor 1, the motor 1 is transmitted through two transmission paths, each transmission path has a sleeve, the two speed ratios of the transmission path can be switched, and the power can be cut off in the neutral gear, the two output shafts can rotate at the same time and in opposite directions; only one rotation can be achieved, and the other output shaft is in a disconnected state with the motor 1, and no power is output.

[0092] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the application described herein can be implemented in other than the order illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, processes, methods, systems, products, or devices that include a series of steps or units do not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

Claims

1. A dual power take-off device, characterized by: The invention comprises a motor (1), wherein the output end of the motor (1) is connected to an input shaft (26), and a first input shaft gear (25), a second input shaft gear (14), and a third input shaft gear (15) are provided on the input shaft (26) in a rigid connection. The first input shaft gear (25) is meshed with a first gear (2) and a fourth gear (24) on both sides, and the first gear (2) is meshed with the second gear (4). The first output flange (12) is acted on by a two-stage reduction through the first gear (2) and the second gear (4), and the second output flange (17) is acted on by a one-stage reduction through the fourth gear (24). The first output flange (12) and the second output flange (17) rotate in opposite directions and are both used to connect to a hydraulic pump load. The input end of the motor (1) is connected to a motor controller (27).

2. The dual power take-off device according to claim 1, characterized in that: The first gear (2) is sleeved on one end of the first intermediate shaft (3), and the third gear (13) is installed on the other end of the first intermediate shaft (3). The first gear (2), the first intermediate shaft (3), and the third gear (13) are rigidly connected. The third gear (13), the second input shaft gear (14), and the first output shaft constant gear (10) are meshed. The first output shaft constant gear (10) is rigidly connected to the second sliding sleeve combined tooth (9) and floats on the first output shaft (11).

3. The dual power take-off device according to claim 1, characterized in that: The second gear (4) is sleeved on one end of the second intermediate shaft (5), and the other end of the second intermediate shaft (5) is installed with a first sliding sleeve coupling tooth (6). The second gear (4), the second intermediate shaft (5), and the first sliding sleeve coupling tooth (6) are rigidly connected. The input end of the first output flange (12) is connected to the first output shaft (11), and is rigidly connected to the C1 sliding sleeve spline (7) through the first output shaft (11).

4. The dual power take-off device according to claim 3, characterized in that: The C1 sliding sleeve spline (7) is sleeved with a C1 sliding sleeve (8); The C1 sliding sleeve (8) is sleeved on the C1 sliding sleeve spline (7) and moves axially.

5. The dual power take-off device according to claim 1, characterized in that: The fourth gear (24) is sleeved on one end of the third intermediate shaft (23), and the other end of the third intermediate shaft (23) is installed with a third sliding sleeve combined tooth (22). The fourth gear (24), the third intermediate shaft (23), and the third sliding sleeve combined tooth (22) are rigidly connected.

6. The dual power take-off device according to claim 1, characterized in that: The input end of the second output flange (17) is connected to the second output shaft (16), and is rigidly connected to the C2 sliding sleeve spline (20) via the second output shaft (16).

7. The dual power take-off device according to claim 6, characterized in that: The C2 sliding sleeve spline (20) is sleeved with a C2 sliding sleeve (21); The C2 sliding sleeve (21) is sleeved on the C2 sliding sleeve spline (20) and moves axially.

8. The dual power take-off device according to claim 1, characterized in that: The third input shaft gear (15) is rigidly connected to the second output shaft constant gear (18); The second output shaft constant gear (18) and the fourth sliding sleeve combined gear (19) are rigidly connected and float on the second output shaft (16).

9. A control method for a dual power take-off device, based on the dual power take-off device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Collect the load request signal of the first output flange (12) to obtain the first target speed M of the motor N1 ; Collect the load request signal of the second output flange (17) to obtain the second target speed M of the motor N2 ; The first target speed of the motor M N1 and the second target speed M of the motor N2 Compare and take the smaller value as the motor target speed; The motor target speed is input to the motor controller (27) to drive the motor (1).

10. The control method of the dual power take-off device according to claim 9, characterized in that: The first target speed M N1 including a first target first gear speed and a first target second gear speed; The first target first gear speed is: PTO N1 ×i c11 The first target second gear speed is: PTO N1 ×i c12 Among them, PTO N1 is the target value of the first output flange speed, i c11 is the total speed ratio of the transmission path from the motor to the first output flange when the C1 sleeve is in the first gear position, i c12 is the total speed ratio of the transmission path from the motor to the first output flange when the C1 sleeve is in the second gear position; The second target speed M N1 including a second target first gear speed and a second target second gear speed; The second target first gear speed is: PTO N2 ×i c21 The first target second gear speed is: PTO N2 ×i c22 Among them, PTO N2 is the target value of the second output flange speed, i c21 is the total speed ratio of the transmission path from the motor to the second output flange when the C2 sleeve is in the first gear position, i c22 It is the total speed ratio of the transmission path from the motor to the second output flange when the C2 sleeve is in the second gear position.

Images