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CN-224224891-U - Four intermediate shaft power assembly for pure electric mine card

CN224224891UCN 224224891 UCN224224891 UCN 224224891UCN-224224891-U

Abstract

The utility model discloses a four-intermediate-shaft power assembly for a pure electric mining card, which comprises two high-speed small-torque permanent magnet motors and two high-speed asynchronous motors, wherein the two permanent magnet motors transmit torque and rotating speed to an input shaft through first-stage reduction gears I, the input shaft transmits power to an intermediate shaft I and the intermediate shaft II through intermediate shaft long meshing gears, the intermediate shaft I and the intermediate shaft II transmit power to an output shaft through first-stage gears/second-stage gears/third-stage gears/fourth-stage gears according to different speeds of a vehicle, the asynchronous motors transmit torque and rotating speed to the intermediate shaft III/intermediate shaft IV through first-stage reduction gears II/first-stage reduction gears III, and the intermediate shaft III/intermediate shaft IV transmits power to the output shaft through second-stage reduction gears II and second-stage reduction gears I. The utility model can realize uninterrupted power output and power output in different gear modes, and can solve the problems of high cost and the like of a high-power assembly.

Inventors

  • WANG RUINAN
  • WANG PENG
  • Shang Ruyue
  • ZHOU SIQUAN

Assignees

  • 陕西法士特齿轮有限责任公司

Dates

Publication Date
20260512
Application Date
20250613

Claims (7)

  1. 1. The four-intermediate-shaft power assembly for the pure electric mine truck is characterized by comprising two high-speed small-torque permanent magnet motors and two high-speed asynchronous motors; The two permanent magnet motors are respectively meshed with a first-stage reduction gear I (1) through a connected gear, the first-stage reduction gear I (1) is fixedly connected with an input shaft (2), the input shaft (2) is coaxially opposite to an output shaft (12), two sides of the input shaft (2) and the output shaft (12) are respectively provided with an intermediate shaft I (5) and an intermediate shaft II (11), a spline on the input shaft (2) is connected with an intermediate shaft long meshing gear (3) and is respectively meshed with a fourth-gear (4) on the intermediate shaft I (5) and the intermediate shaft II (11), a 3/4-gear sliding sleeve (6) is sequentially sleeved on the output shaft (12), a three-gear (26) of the spline is connected with the output shaft and is meshed with a three-gear (7) on the intermediate shaft I (5) and the intermediate shaft II (11), a two-gear (25) of the spline is connected with a two-gear (8) on the intermediate shaft I (5) and the intermediate shaft II (11), a 1/2-gear sliding sleeve (9) is sleeved on the spline, and the spline is connected with the output shaft I (5) and the first-gear (16) of the intermediate shaft I (11) are fixedly meshed with the speed reducer I; Two asynchronous motors are respectively meshed with a first-stage speed reduction gear II (14) and a first-stage speed reduction gear III (21) through connected gears, the first-stage speed reduction gear II (14) and the first-stage speed reduction gear III (21) are respectively fixedly connected with a middle shaft III (15) and a middle shaft IV (22), two-stage speed reduction gears II (23) are fixedly connected to the middle shaft III (15) and the middle shaft IV (22), and the two-stage speed reduction gears II (23) are meshed with two-stage speed reduction gears I (16).
  2. 2. The four-intermediate-shaft power assembly for the pure electric mining card according to claim 1, wherein the two permanent magnet motors transmit torque and rotation speed to an input shaft (2) through first-stage speed reduction gears I (1), the input shaft (2) transmits power to an intermediate shaft I (5) and an intermediate shaft II (11) through intermediate-shaft long-meshed gears (3), and the intermediate shaft I (5) and the intermediate shaft II (11) transmit power to an output shaft (12) through first-gear gears (10)/second-gear gears (8)/third-gear gears (7)/fourth-gear gears (4) through 1/2-gear sliding sleeves (9) or 3/4-gear sliding sleeves (6) according to different vehicle speeds.
  3. 3. The four-intermediate shaft power assembly for the pure electric mining card according to claim 1, wherein one asynchronous motor transmits torque and rotation speed to an intermediate shaft III (15) through a first-stage speed reduction gear II (14), the intermediate shaft III (15) transmits power to an output shaft (12) through a second-stage speed reduction gear II (23) and a second-stage speed reduction gear I (16), the other high-speed asynchronous motor transmits torque and rotation speed to an intermediate shaft IV (22) through a first-stage speed reduction gear III (21), and the intermediate shaft IV (22) transmits power to the output shaft (12) through the second-stage speed reduction gear II (23) and the second-stage speed reduction gear I (16).
  4. 4. The four-intermediate shaft power assembly for a pure electric mining card according to claim 1, wherein the two permanent magnet motors and the two asynchronous motors are respectively located at four corners of the transmission.
  5. 5. Four-intermediate shaft power assembly for a purely electric mining card according to claim 1, characterized in that the intermediate shaft I (5), the intermediate shaft II (11), the intermediate shaft III (15) and the intermediate shaft IV (22) are located in the four corner positions of the transmission, respectively.
  6. 6. The four-intermediate-shaft power assembly for the pure electric mining card according to claim 1, wherein the 1/2-gear sliding sleeve (9) can transmit torque and rotation speed to the output shaft (12) through a first-gear (10) or a second-gear (8) by pushing rightwards or leftwards, the 3/4-gear sliding sleeve (6) can transmit torque and rotation speed to the output shaft (12) through a third-gear (7) or a fourth-gear (4) by pushing rightwards or leftwards, and the switching of different gear modes is realized through the 1/2-gear sliding sleeve (9), the 3/4-gear sliding sleeve (6) and a motor control mode.
  7. 7. The four-intermediate-shaft power assembly for the pure electric mining card according to claim 1, wherein the two permanent magnet motors are used for reducing speed and increasing torque through a speed reducer and a four-gear box, the two asynchronous motors are directly connected with an output shaft (12) through two-stage speed reduction, and torque output is continuously carried out by the two asynchronous motors in the gear shifting process, so that the power output is not interrupted.

Description

Four intermediate shaft power assembly for pure electric mine card Technical Field The utility model belongs to the technical field of electric mine card power, and relates to a four-intermediate-shaft power assembly for a pure electric mine card. Background At present, most of electric mine truck power structures change an engine into a motor in the power form of a traditional fuel oil vehicle, and an automatic gear shifting mechanism mechanical transmission (AMT) with a small gear is selected, but one motor is used as a power source, power interruption is brought when the gear shifting is carried out, and the configuration can meet the operation scenes of small gradient and good road conditions. However, under the working condition that the requirements on the reliability and the comfort of the AMT gear shifting are relatively high, the development of a power structure form and a gear shifting method with uninterrupted AMT gear shifting power is required. And the existing motors are all in serial output by adopting a low-speed large-torque single motor or double motors, so that the cost of the motors is high, the power is limited, and the requirements of the mine cards on high power cannot be met. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide a four-intermediate-shaft power assembly for a pure electric mine truck, which solves the problems of power interruption, stopping after gear shifting failure on an AMT slope, gear shifting smoothness and the like in the gear shifting process of the AMT, adopts 2 high-speed permanent magnet motors, 2 high-speed asynchronous motors and 4 motor power superposition, solves the problem of low speed caused by insufficient mine truck power, improves the operation efficiency of the vehicle, and adopts 4 high-speed motors, thereby having low cost and solving the problem of high cost of a high-power assembly. In order to solve the technical problems, the utility model adopts the following technical scheme: A four-intermediate shaft power assembly for a pure electric mine card comprises two high-speed small-torque permanent magnet motors and two high-speed asynchronous motors; The two permanent magnet motors are respectively meshed with a first-stage speed reduction gear I through a connected gear, the first-stage speed reduction gear I is fixedly connected with an input shaft, the input shaft is coaxially opposite to an output shaft, and two sides of the input shaft and the output shaft are respectively provided with an intermediate shaft I and an intermediate shaft II; the spline on the input shaft is connected with a long intermediate shaft meshing gear and is respectively meshed with four-gear gears on the intermediate shaft I and the intermediate shaft II; the output shaft is sequentially sleeved with a 3/4-gear sliding sleeve, a spline connected with a three-gear of the output shaft and meshed with the three-gear gears on the intermediate shaft I and the intermediate shaft II, a spline connected with a two-gear of the output shaft and meshed with the two-gear gears on the intermediate shaft I and the intermediate shaft II, a 1/2-gear sliding sleeve is sleeved on the output shaft, a spline connected with a first-gear of the output shaft and meshed with the first-gear gears on the intermediate shaft I and the intermediate shaft II, and a two-stage reduction gear I and a transmission output flange are fixedly connected; Two asynchronous motors are respectively meshed with the first-stage reduction gear II and the first-stage reduction gear III through connected gears, the first-stage reduction gear II and the first-stage reduction gear III are respectively fixedly connected with the intermediate shaft III and the intermediate shaft IV, the intermediate shaft III and the intermediate shaft IV are respectively fixedly connected with the second-stage reduction gear II, and the two second-stage reduction gears II are meshed with the second-stage reduction gear I. The utility model also comprises the following technical characteristics: the two permanent magnet motors transmit torque and rotation speed to an input shaft through first-stage speed reduction gears I, the input shaft transmits power to a middle shaft I and a middle shaft II through middle shaft long meshing gears, and the middle shaft I and the middle shaft II transmit power to an output shaft through first-gear gears/second-gear gears/third-gear gears/fourth-gear gears according to different vehicle speeds through 1/2-gear sliding sleeves or 3/4-gear sliding sleeves. The high-speed asynchronous motor is used for transmitting torque and rotating speed to the intermediate shaft IV through the first-stage speed reduction gear II, the intermediate shaft III is used for transmitting power to the output shaft through the second-stage speed reduction gear II and the second-stage speed reduction gear I, the other high-speed asynchronous motor is used for transmitting