Integrated driving assembly

Abstract

The utility model discloses an integrated driving assembly, which comprises an outer shell, an inner shell and an inner shell, the driving motor group is fixedly mounted in the mounting cavity and is provided with two output shafts which are coaxial and are arranged away from each other; the two speed reducing mechanisms are arranged in the mounting cavity in a mirror image mode, and the input end of each speed reducing mechanism is in shaft connection with one output shaft; one end of each connecting shaft is in shaft connection with the output end of the corresponding speed reducing mechanism, and the other end of each connecting shaft is used for outputting circumferential driving force outwards. According to the technical scheme, the overall structure of the driving assembly can be more compact and simple, a motor does not need to be mounted outside, transmission is achieved through a gear set, transmission energy consumption is lower, and assembling, packaging and transportation are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of drive mechanisms, and particularly relates to an integrated drive assembly. Background Art

[0002] A drive assembly refers to a drive assembly including a drive motor, a reduction mechanism, a transmission mechanism, and a transmission shaft. Taking a ride-on mower as an example, it is usually designed to transmit the output shaft of the drive motor to the reduction mechanism through multiple gear sets, and then the reduction mechanism is further connected to the transmission shaft through the transmission mechanism. Moreover, multiple components are all independent components, and are installed by designing installation positions on the mower body or by externally mounting the drive motor on the reduction mechanism. This design inevitably makes the overall structure relatively bulky, and it is not convenient for assembly, packaging, and transportation. At the same time, the transmission energy consumption between the motor and the reduction mechanism is relatively high. Summary of the Utility Model

[0003] In view of the above problems existing in the prior art, the present invention provides an integrated drive assembly, aiming to make the overall structure of the drive assembly more compact and concise, without externally mounting a motor and transmitting power through a gear set, with lower transmission energy consumption, and being more convenient for assembly, packaging, and transportation, so as to overcome at least one of the above technical defects.

[0004] The specific technical solutions are as follows:

[0005] An integrated drive assembly, comprising:

[0006] An outer housing, which internally forms an installation cavity;

[0007] A drive motor group, fixedly installed in the installation cavity and having two output shafts that are coaxial and arranged in opposite directions;

[0008] Two reduction mechanisms, mirror-image arranged in the installation cavity, and the input end of each reduction mechanism is respectively axially connected to an output shaft;

[0009] Two connecting shafts, one end of which is respectively axially connected to the output end of a reduction mechanism, and the other end is used to output circumferential driving force outward.

[0010] Preferably, the drive motor group includes two motors that are mirror-image and coaxially arranged, and the output shafts of the two motors are respectively axially connected to the input end of a reduction mechanism. The power input lines of the two motors also respectively extend out of the outer housing.

[0011] Preferably, the drive motor group includes a double-headed motor, and the two output shafts of the double-headed motor are respectively axially connected to the input end of a reduction mechanism.

[0012] Preferably, the speed reduction mechanism includes a first-stage planetary gear speed reduction mechanism, and the sun gear of the first-stage planetary gear speed reduction mechanism serves as the power input end and is axially connected to the output shaft of the drive motor set, and the planet carrier of the first-stage planetary gear speed reduction mechanism serves as the power output end.

[0013] Preferably, the speed reduction mechanism further includes a second-stage planetary gear speed reduction mechanism, and the planet carrier of the second-stage planetary gear speed reduction mechanism serves as the power input end and is axially connected to the planet carrier of the first-stage planetary gear speed reduction mechanism, and the sun gear of the second-stage planetary gear speed reduction mechanism serves as the power output end and is axially connected to the connecting shaft.

[0014] Preferably, the two output shafts of the drive motor set, the first-stage planetary gear speed reduction mechanism, the second-stage planetary gear speed reduction mechanism, and the two connecting shafts are all arranged coaxially.

[0015] Preferably, at the ends of the two connecting shafts facing away from each other, a hub flange fixing plate is respectively axially connected, for connecting with the external hub flange.

[0016] Preferably, the outer housing includes a main housing and side housings detachably installed on the left and right sides of the main housing, and the main housing and the two side housings jointly enclose an installation cavity.

[0017] Preferably, the drive motor set is accommodated in the main housing, and the mounting end cover of the drive motor set is fixedly installed on the end face of the side housing facing the main housing by fasteners.

[0018] Preferably, the two speed reduction mechanisms are respectively accommodated in the two side housings, and at least part of the two connecting shafts extends into the side housings and is axially connected to the output ends of the speed reduction mechanisms.

[0019] The beneficial effects of the above technical solutions are as follows:

[0020] The integrated drive assembly includes an outer housing, a drive motor set, two speed reduction mechanisms, and two connecting shafts. The drive motor set and the speed reduction mechanisms are both arranged in the outer housing, and power is output outward by the two connecting shafts, making the overall structure of the drive assembly more compact and concise. There is no need to externally mount a motor and transmit power through a gear set, resulting in lower transmission energy consumption, and more convenient assembly, packaging, and transportation. Description of the Drawings

[0021] Figure 1 is a perspective view of the integrated drive assembly of the present utility model;

[0022] Figure 2 is a perspective view of the integrated drive assembly of the present utility model with the outer housing removed;

[0023] Figure 3 is an exploded view of one side component of the integrated drive assembly of the present utility model;

[0024] Figure 4Explosion view of one side component of the integrated drive assembly of the present utility model from another perspective;

[0025] Figure 5 Explosion view of the first planetary gear reduction mechanism in the integrated drive assembly of the present utility model. Detailed implementation manner

[0026] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following embodiments will specifically describe the present utility model in conjunction with the accompanying drawings.

[0027] Refer to Figures 1 to 5 As shown in

[0028] The outer housing 1, which internally forms an installation cavity;

[0029] The drive motor set 2, fixedly installed in the installation cavity and having two output shafts 22 that are coaxial and arranged in opposite directions;

[0030] Two reduction mechanisms 3, mirror - arranged in the installation cavity, and the input end of each reduction mechanism 3 is respectively axially connected to an output shaft 22;

[0031] Two connecting shafts 4, one end of which is respectively axially connected to the output end of a reduction mechanism 3, and the other end is used to output circumferential driving force outward.

[0032] Based on the above - mentioned technical solution, the integrated drive assembly includes the outer housing 1, the drive motor set 2, two reduction mechanisms 3 and two connecting shafts 4. The drive motor set 2 and the reduction mechanisms 3 are both arranged inside the outer housing 1, and power is output outward by the two connecting shafts 4, making the overall structure of the drive assembly more compact and concise. There is no need to externally mount a motor and transmit power through a gear set, resulting in lower transmission energy consumption, and more convenient assembly, packaging and transportation.

[0033] In a preferred implementation manner, specifically as Figures 2 to 4 shown in

[0034] the drive motor set 2 includes two motors that are mirror - arranged and coaxial, and the output shafts 22 of the two motors are respectively axially connected to the input end of a reduction mechanism 3, and the power input lines 21 of the two motors also respectively extend out of the outer housing 1.

[0035] In a preferred embodiment, the speed reduction mechanism 3 includes a first-stage planetary gear speed reduction mechanism 31. The sun gear of the first-stage planetary gear speed reduction mechanism 31 serves as the power input end and is axially connected to the output shaft 22 of the drive motor set 2, and the planet carrier of the first-stage planetary gear speed reduction mechanism 31 serves as the power output end. Further, the speed reduction mechanism 3 further includes a second-stage planetary gear speed reduction mechanism 32. The planet carrier of the second-stage planetary gear speed reduction mechanism 32 serves as the power input end and is axially connected to the planet carrier of the first-stage planetary gear speed reduction mechanism 31, and the sun gear of the second-stage planetary gear speed reduction mechanism 32 serves as the power output end and is axially connected to the connecting shaft 4.

[0036] As a further preferred embodiment, the two output shafts 22 of the drive motor set 2, the first-stage planetary gear speed reduction mechanism 31, the second-stage planetary gear speed reduction mechanism 32, and the two connecting shafts 4 are all arranged coaxially, which can reduce power loss.

[0037] As a further preferred embodiment, at the ends of the two connecting shafts 4 facing away from each other, a hub flange fixing plate 5 is respectively axially connected, which is used to connect with an external hub flange, so as to output driving force to the external hub. Further, the outer housing 1 includes a main housing 11 and side housings 12 detachably installed on the left and right sides of the main housing 11, and the main housing 11 and the two side housings 12 jointly enclose an installation cavity. Further, the drive motor set 2 is accommodated in the main housing 11, and the mounting end cover of the drive motor set 2 is fixedly installed on the end face of the side housing 12 facing the main housing 11 by fasteners. Further, the two speed reduction mechanisms 3 are respectively accommodated in the two side housings 12, and at least part of the two connecting shafts 4 extends into the side housings 12 and is axially connected to the output ends of the speed reduction mechanisms 3.

[0038] In addition, the power output end of the above-mentioned second-stage planetary gear speed reduction mechanism 32 also serves as the output end of the speed reduction mechanism 3. And the integrated drive assembly in this solution is mainly applied to a riding lawn mower, but obviously it can be adapted to other devices that require power output, and is not limited thereto. And at least one bearing is sleeved on the part of the connecting shaft 4 extending into the side housing 12 to serve as a support structure. At the same time, as shown in Figure 5 In the figure, the planetary gear speed reduction mechanism 3 adopted in this solution is a planetary gear structure of an existing model. Taking the first-stage planetary gear speed reduction mechanism 31 as an example, it includes an outer gear ring 34, a planet carrier 36, planetary gears 35 and a sun gear 33 assembled into one body. Its operation logic follows the conventional logic in this field, so it is omitted here.

[0039] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. An integrated drive assembly, characterized in that: include: An outer shell (1) has a mounting cavity formed inside; A driving motor group (2) is fixedly mounted in the mounting cavity and has two coaxial output shafts (22) that are arranged in opposite directions; Two speed reduction mechanisms (3) are arranged in mirror image in the installation cavity, and the input end of each speed reduction mechanism (3) is axially connected to one of the output shafts (22); Two connecting shafts (4) have one end connected to an output end of the speed reduction mechanism (3) and the other end used to output circumferential driving force outward.

2. The integrated drive assembly according to claim 1, characterized in that: The driving motor group (2) comprises two motors that are mirror-imaged and coaxially arranged, and the output shafts (22) of the two motors are respectively connected to the input end of one of the reduction mechanisms (3), and the power input lines (21) of the two motors also extend outward from the outer shell (1).

3. The integrated drive assembly according to claim 1, characterized in that: The driving motor group (2) comprises a double-headed motor, and the two output shafts of the double-headed motor are respectively connected to the input end of one of the speed reduction mechanisms (3).

4. The integrated drive assembly according to claim 2 or 3, characterized in that: The reduction mechanism (3) comprises a first-stage planetary gear reduction mechanism (31), wherein the sun gear of the first-stage planetary gear reduction mechanism (31) serves as a power input end and is axially connected to the output shaft (22) of the drive motor group (2), and the planet carrier of the first-stage planetary gear reduction mechanism (31) serves as a power output end.

5. The integrated drive assembly according to claim 4, characterized in that: The reduction mechanism (3) further comprises a secondary planetary gear reduction mechanism (32), wherein the planet carrier of the secondary planetary gear reduction mechanism (32) serves as a power input end and is axially connected to the planet carrier of the primary planetary gear reduction mechanism (31), and the sun gear of the secondary planetary gear reduction mechanism (32) serves as a power output end and is axially connected to the connecting shaft (4).

6. The integrated drive assembly according to claim 5, characterized in that: The two output shafts (22) of the drive motor group (2), the first-stage planetary gear reduction mechanism (31), the second-stage planetary gear reduction mechanism (32), and the two connecting shafts (4) are all coaxially arranged.

7. The integrated drive assembly according to claim 6, characterized in that: One end of the two connecting shafts (4) which are separated from each other is axially connected to a hub flange fixing plate (5) for connecting with an external hub flange.

8. The integrated drive assembly according to claim 1, characterized in that: The outer shell (1) comprises a main shell (11) and side shells (12) detachably mounted on the left and right sides of the main shell (11), and the main shell (11) and the side shells (12) together enclose the installation cavity.

9. The integrated drive assembly according to claim 8, characterized in that: The drive motor group (2) is accommodated in the main housing (11), and the mounting end cover of the drive motor group (2) is fixed to the end surface of the side housing (12) facing the main housing (11) by fasteners.

10. The integrated drive assembly according to claim 9, characterized in that: The two speed reduction mechanisms (3) are respectively accommodated in the two side housings (12), and the two connecting shafts (4) at least partially extend into the side housings (12) and are axially connected to the output ends of the speed reduction mechanisms (3).

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