A dual-motor electric drive axle

Abstract

The utility model discloses a dual-motor electric drive axle, comprising a left drive axle, a right drive axle, a half shaft one and a half shaft two, wherein the half shaft one is rotatably mounted inside the left drive axle, and the half shaft two is rotatably mounted inside the right drive axle, and a double-drive assembly is arranged on the left drive axle and the right drive axle, which can perform single and double drives on the electric drive axle, and the double-drive assembly comprises a motor one and a motor two, wherein the motor one is mounted on the upper end of the left drive axle, and the motor two is mounted on the upper end of the right drive axle, and relates to the technical field of automobiles: by setting the connecting shaft in the electric drive axle to be slidable, the electric drive axle can be driven by two groups of motors at the same time, and the gear can also be pushed by a connecting frame to slide the connecting shaft, so that the gear position is offset, and one motor is used for driving, so that the single and double motors can be automatically controlled and adjusted for use, electric energy can be saved, and the driving force of the electric drive axle can be improved.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to a dual-motor electric drive bridge. Background Art

[0002] A search of the patent office database for publication number CN203611712U revealed that the rear axle of an electric vehicle with dual motor drive is driven by dual motors, which significantly increases the output power and torque compared to a single motor drive. This can meet the output requirements in special use cases such as loading and going uphill, making the motor less susceptible to damage under high-power and high-torque output conditions, thereby increasing and improving the output characteristics of the motor. The two motors are arranged on one side of the middle of the rear axle, and dual motor drive can be achieved even when the total length of the rear axle is limited. However, when the electric drive axle is in use, the two motors must work at the same time, which cannot meet the requirements for automatic control and adjustment of single and dual motors.

[0003] Therefore, it is necessary to invent a dual-motor electric drive axle. Summary of the invention

[0004] The purpose of the utility model is to provide a dual-motor electric drive axle to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A dual-motor electric drive axle comprises a left drive axle, a right drive axle, a half-shaft one and a half-shaft two, wherein the half-shaft one is rotatably mounted inside the left drive axle, and the half-shaft two is rotatably mounted inside the right drive axle, and dual drive components are provided on the left drive axle and the right drive axle, which can perform single and dual drive on the electric drive axle.

[0007] In a preferred embodiment of the present invention, the dual drive assembly includes motor 1 and motor 2, wherein motor 1 is installed at the upper end of the left drive axle, and motor 2 is installed at the upper end of the right drive axle.

[0008] In a preferred implementation manner of the utility model, gear one is installed at the output end of the motor one, and gear two is installed at the output end of the motor two.

[0009] In a preferred embodiment of the utility model, a first installation groove is provided inside the first half shaft, a second installation groove is provided inside the second half shaft, and a connecting shaft is slidably installed inside the first installation groove and the second installation groove.

[0010] In a preferred embodiment of the present utility model, gear three and gear four are respectively installed on the outer wall of the connecting shaft, the gear three is meshedly connected to the gear one, and the gear four is meshedly connected to the gear two.

[0011] In a preferred embodiment of the utility model, a limiting ring 1 is installed on the left end of the gear 3, and a limiting ring 2 is installed on the right end of the gear 4. A connecting frame is slidably connected to the limiting ring 1 and the limiting ring 2.

[0012] In a preferred embodiment of the present invention, a slider 1 and a slider 2 are respectively installed on the upper end of the connecting frame, the slider 1 is slidably connected in a limiting ring 1, the slider 2 is slidably connected in a limiting ring 2, and a connecting block 1 and a connecting block 2 are respectively installed on the lower end of the connecting frame.

[0013] In a preferred embodiment of the utility model, a hydraulic rod 1 is installed at the lower end of the left drive axle, and the output end of the hydraulic rod 1 is connected to a connecting block 1. A hydraulic rod 2 is installed at the lower end of the right drive axle, and the output end of the hydraulic rod 2 is connected to a connecting block 2.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. Beneficial Effects

[0015] By setting the connecting shaft in the electric drive axle to be slidable, the electric drive axle can be driven by two sets of motors at the same time, or the gears can be pushed by the connecting frame to slide the connecting shaft and shift the gear position, and one motor can be used for driving, so that the single and double motors can be automatically controlled and adjusted, which can save electricity and improve the driving force of the electric drive axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural diagram of a dual-motor electric drive axle;

[0018] Figure 2 This is a schematic diagram of the installation of gear three and gear four in a dual-motor electric drive axle;

[0019] Figure 3 It is a left view of gear three in a dual-motor electric drive axle;

[0020] Figure 4 The figure is a schematic diagram of a connecting frame in a dual-motor electric drive axle.

[0021] In the figure: left drive axle 1, right drive axle 11, half shaft 1 12, half shaft 2 13, dual drive assembly 2, motor 1 21, motor 2 211, gear 1 22, gear 2 221, mounting slot 1 23, mounting slot 2 231, connecting shaft 24, gear 3 25, gear 4 251, hydraulic rod 1 26, hydraulic rod 2 261, connecting frame 27, connecting block 1 271, connecting block 2 272, slider 1 273, slider 2 274, limiting ring 1 28, limiting ring 2 281. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] like Figure 1-Figure 4 ,

[0024] It includes a left drive axle 1, a right drive axle 11, a half shaft 12 and a half shaft 2 13. The half shaft 12 is rotatably mounted inside the left drive axle 1, and the half shaft 2 13 is rotatably mounted inside the right drive axle 11. The left drive axle 1 and the right drive axle 11 are provided with a dual drive assembly 2, which can perform single and dual drive on the electric drive axle.

[0025] The dual drive assembly 2 includes a motor 1 21 and a motor 211. The motor 1 21 is installed at the upper end of the left drive bridge 1. The motor 1 21 is used to drive the gear 1 22 to rotate. The motor 2 211 is installed at the upper end of the right drive bridge 11. The motor 2 211 is used to drive the gear 2 221 to rotate. The output end of the motor 1 21 is installed with a gear 1 22. The gear 1 22 can drive the gear 3 25 to rotate. The output end of the motor 2 211 is installed with a gear 221. The gear 2 221 can drive the gear 4 251 to rotate. The interior of the half shaft 12 is provided with a mounting groove 1 23. The interior of the mounting groove 1 23 is used for sliding connection with the left end of the connecting shaft 24. The interior of the half shaft 2 13 is provided with a mounting groove 231. The mounting groove The interior of the second 231 is used for sliding connection to the right end of the connecting shaft 24, and the connecting shaft 24 is slidably installed in the interior of the mounting groove 1 23 and the mounting groove 231. The connecting shaft 24 is used to support and install the gear three 25 and the gear four 251, and the connecting shaft 24 rotates to drive the half shaft 12 and the half shaft 2 13 to rotate. The outer wall of the connecting shaft 24 is respectively installed with the gear three 25 and the gear four 251. The rotation of the gear three 25 and the gear four 251 drives the connecting shaft 24 to rotate. The gear three 25 and the gear four 251 can rotate at the same time or be used separately. The gear three 25 is meshed and connected to the gear one 22, and the gear four 251 is meshed and connected to the gear two 221. A limiting ring is installed on the left end of the gear three 25 The limiting ring 1 28 rotates to limit the sliding of the slider 1 273. The right end of the gear 4 251 is equipped with a limiting ring 281. The limiting ring 281 rotates to limit the sliding of the slider 274. The limiting ring 1 28 and the limiting ring 281 are slidably connected with a connecting frame 27. The connecting frame 27 is used to support and install the slider 1 273 and the slider 2 274. The upper end of the connecting frame 27 is respectively equipped with a slider 1 273 and a slider 2 274. When the limiting ring 1 28 and the limiting ring 281 rotate, the slider 1 273 and the slider 2 274 can be limitedly rotated. The slider 1 273 is slidably connected in the limiting ring 1 28, and the slider 2 274 is slidably connected to the limiting ring 281. In the embodiment, the lower end of the connecting frame 27 is respectively installed with a connecting block 1 271 and a connecting block 2 272, the connecting block 1 271 is used to connect the hydraulic rod 1 26, the connecting block 2 272 is used to connect the hydraulic rod 2 261, the lower end of the left driving axle 1 is installed with a hydraulic rod 1 26, the output end of the hydraulic rod 1 26 is connected to the connecting block 1 271, the lower end of the right driving axle 11 is installed with a hydraulic rod 2 261, the output end of the hydraulic rod 2 261 is connected to the connecting block 2 272, the connecting frame 27 is driven to slide by the hydraulic rod 1 26 and the hydraulic rod 2 261, the sliding of the connecting frame 27 pushes the gear 3 25 and the gear 4 251, thereby pushing the connecting shaft 24 to slide in the half shaft 12 and the half shaft 2 13;

[0026] The motor 1 21 drives the gear 1 22 to rotate, the gear 1 22 drives the gear 3 25 to rotate, the motor 2 211 drives the gear 2 221 to rotate, the gear 2 221 drives the gear 4 251 to rotate, the gear 3 25 and the gear 4 251 rotate to drive the connecting shaft 24 to rotate, the gear 3 25 and the gear 4 251 can rotate at the same time or can be used separately, the connecting shaft 24 drives the half shaft 12 and the half shaft 2 13 to rotate, when the limit ring 1 28 and the limit ring 2 281 rotate, the slider 1 2 73 and slider 274 can be limitedly rotated, and the connecting frame 27 is driven to slide by the hydraulic rod 1 26 and the hydraulic rod 2 261. The sliding of the connecting frame 27 pushes the gear 3 25 and the gear 4 251, thereby pushing the connecting shaft 24 to slide in the half shaft 12 and the half shaft 2 13, so that the gear 3 25 is disengaged from the gear 1 22, and the gear 4 251 is disengaged from the gear 2 221. The gear 3 25 and the gear 4 251 can also rotate at the same time, and drive the electric drive axle at the same time, and can also use a single motor to drive the electric drive axle.

[0027] The working principle of the utility model is as follows: the half shaft 12 is rotatably mounted inside the left drive axle 1, the half shaft 2 13 is rotatably mounted inside the right drive axle 11, the motor 1 21 is mounted on the upper end of the left drive axle 1, the motor 2 211 is mounted on the upper end of the right drive axle 11, the output end of the motor 1 21 is mounted with a gear 1 22, the output end of the motor 2 211 is mounted with a gear 2 221, the interior of the half shaft 12 is provided with a mounting groove 1 23, the interior of the half shaft 2 13 is provided with a mounting groove 231, the interior of the mounting groove 1 23 and the mounting groove 231 is slidably mounted with a connecting shaft 24, and the outer wall of the connecting shaft 24 is respectively provided with gears 3 25 and gear 4 251, gear 3 25 meshes with gear 1 22, gear 4 251 meshes with gear 2 221, a limiting ring 1 28 is installed on the left end of gear 3 25, and a limiting ring 281 is installed on the right end of gear 4 251. A connecting frame 27 is slidably connected on the limiting ring 1 28 and the limiting ring 2 281, and a slider 1 273 and a slider 2 274 are respectively installed on the upper end of the connecting frame 27. The slider 1 273 is slidably connected in the limiting ring 1 28, and the slider 2 274 is slidably connected in the limiting ring 2 281. The lower end of the connecting frame 27 is respectively installed with a connecting block 1 271 and a connecting block 2 272, and the left drive axle 1 A hydraulic rod 1 26 is installed at the lower end, and the output end of the hydraulic rod 1 26 is connected to a connecting block 1 271. A hydraulic rod 2 261 is installed at the lower end of the right drive axle 11, and the output end of the hydraulic rod 2 261 is connected to a connecting block 2 272. The motor 1 21 drives the gear 1 22 to rotate, and the gear 1 22 drives the gear 3 25 to rotate. The motor 211 drives the gear 2 221 to rotate, and the gear 2 221 drives the gear 4 251 to rotate. The gear 3 25 and the gear 4 251 rotate to drive the connecting shaft 24 to rotate. The gear 3 25 and the gear 4 251 can rotate at the same time or be used separately. The connecting shaft 24 drives the half shaft When the half shaft 12 and the half shaft 2 13 rotate, the limit ring 1 28 and the limit ring 281 rotate, the slider 1 273 and the slider 2 274 can be limited and rotated, and the hydraulic rod 1 26 and the hydraulic rod 2 261 drive the connecting frame 27 to slide, and the sliding of the connecting frame 27 pushes the gear 3 25 and the gear 4 251, thereby pushing the connecting shaft 24 to slide in the half shaft 12 and the half shaft 2 13, so that the gear 3 25 is disengaged from the gear 1 22, and the gear 4 251 is disengaged from the gear 2 221. The gear 3 25 and the gear 4 251 can also rotate at the same time, and the electric drive axle is driven at the same time, and the electric drive axle can also be driven by a single motor.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dual-motor electric drive axle, comprising a left drive axle (1), a right drive axle (11), a first half-shaft (12) and a second half-shaft (13), wherein the first half-shaft (12) is rotatably mounted inside the left drive axle (1), and the second half-shaft (13) is rotatably mounted inside the right drive axle (11), characterized in that: The left drive axle (1) and the right drive axle (11) are provided with dual drive components (2) which can perform single and dual drive on the electric drive axle.

2. The dual-motor electric drive axle according to claim 1, characterized in that: The dual drive assembly (2) comprises a motor 1 (21) and a motor 2 (211), wherein the motor 1 (21) is mounted on the upper end of the left drive axle (1), and the motor 2 (211) is mounted on the upper end of the right drive axle (11).

3. The dual-motor electric drive axle according to claim 2, characterized in that: The output end of the motor one (21) is mounted with a gear one (22), and the output end of the motor two (211) is mounted with a gear two (221).

4. The dual-motor electric drive axle according to claim 2, characterized in that: The interior of the half shaft one (12) is provided with a mounting groove one (23), the interior of the half shaft two (13) is provided with a mounting groove two (231), and the interiors of the mounting groove one (23) and the mounting groove two (231) are slidably mounted with a connecting shaft (24).

5. The dual-motor electric drive axle according to claim 4, characterized in that: Gear three (25) and gear four (251) are respectively mounted on the outer wall of the connecting shaft (24); gear three (25) is meshedly connected to gear one (22); and gear four (251) is meshedly connected to gear two (221).

6. The dual-motor electric drive axle according to claim 5, characterized in that: A limit ring 1 (28) is installed at the left end of the gear 3 (25), and a limit ring 2 (281) is installed at the right end of the gear 4 (251). A connecting frame (27) is slidably connected to the limit ring 1 (28) and the limit ring 2 (281).

7. The dual-motor electric drive axle according to claim 6, characterized in that: A slider 1 (273) and a slider 2 (274) are respectively mounted on the upper end of the connecting frame (27); the slider 1 (273) is slidably connected in a limiting ring 1 (28); the slider 2 (274) is slidably connected in a limiting ring 2 (281); and a connecting block 1 (271) and a connecting block 2 (272) are respectively mounted on the lower end of the connecting frame (27).

8. The dual-motor electric drive axle according to claim 1, characterized in that: A hydraulic rod 1 (26) is installed at the lower end of the left drive axle (1), and the output end of the hydraulic rod 1 (26) is connected to a connecting block 1 (271). A hydraulic rod 2 (261) is installed at the lower end of the right drive axle (11), and the output end of the hydraulic rod 2 (261) is connected to a connecting block 2 (272).

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