Novel motor connecting structure of rotary speed reducer

Abstract

The utility model discloses a novel motor connecting structure of a rotary speed reducer. An inner gear is fixedly connected in a mounting shell, and a plurality of planetary gears are arranged in an inner ring of the inner gear and are respectively meshed with the inner gear; the central outer gear is arranged in the center of the inner ring of the inner gear, is meshed with each planetary gear at the same time, and is fixedly connected to the first transmission shaft; a worm of the rotary speed reducer is fixedly connected with the tail end of the first transmission shaft; an output shaft of the driving motor is parallel to the first transmission shaft and is in transmission connection with the first transmission shaft through a gear. The connecting structure can realize the conversion of the connecting direction of the driving motor and the rotary speed reducer, and has the characteristics of stable transmission, strong torque transmission capability, low failure rate and the like.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducer technology, specifically relating to a novel motor connection structure for a rotary speed reducer. Background Technology

[0002] In the field of photovoltaic regulation, when a rotary reducer is used to adjust the tracking angle of a solar photovoltaic panel, after the central shaft 501 of the rotary reducer is fixedly connected to the rotating shaft of the solar photovoltaic panel, the worm of the conventional rotary reducer is coaxially connected to the output shaft of the drive motor. The excessively long body of the drive motor will hinder the rotation of the solar photovoltaic panel and limit the rotation adjustment range of the solar photovoltaic panel.

[0003] In the prior art, referring to Chinese Patent Application No. 202320174544.4, a rotary reducer with a rotating mechanism is disclosed. This reduces the driving direction by "connecting a bevel gear set to a worm gear and changing the driving direction through the bevel gear set." That is, the bevel gear set changes the connection direction between the drive motor and the rotary reducer, preventing the drive motor from obstructing the rotation of the solar photovoltaic panel. However, relying solely on a single bevel gear set for transmission results in a small contact area and high contact stress between the two bevel gears. When transmitting large torques, the bevel gears are prone to wear, leading to increased vibration and unstable transmission.

[0004] Therefore, there is an urgent need for another type of motor connection structure for rotary reducers to improve the above-mentioned defects. Utility Model Content

[0005] Based on the content in the background art, this utility model provides another solution to realize the change of connection direction between the drive motor and the rotary reducer, which has the characteristics of stable transmission, strong torque transmission capability and low failure rate.

[0006] A novel motor connection structure for a rotary reducer is disclosed, comprising an internal gear, a mounting housing, planetary gears, a central external gear, a first transmission shaft, a rotary reducer, and a drive motor;

[0007] The internal gear is installed inside the mounting housing, and multiple planetary gears are arranged in the inner ring of the internal gear and mesh with it respectively. The central external gear is located at the center of the inner ring of the internal gear and meshes with each planetary gear simultaneously. In this embodiment, a total of four planetary gears are arranged around the central external gear, which is fixedly connected to the first transmission shaft. The worm of the rotary reducer is fixedly connected to the end of the first transmission shaft. In this way, both the planetary gears and the central external gear are arranged in the inner ring of the internal gear, which can save installation space, shorten the center distance, and have a shorter angular distance. Moreover, the torque is shared by multiple planetary gears, and their "hugging" meshing with the internal gear can reduce contact stress by increasing the contact area, reducing wear and improving torque transmission capacity. Compared with the transmission method of two bevel gears, this transmission is more stable, reduces the load on the central external gear, significantly improves the impact resistance at this point, and has a lower failure rate.

[0008] The output shaft of the drive motor is arranged parallel to the first transmission shaft, and the output shaft of the drive motor and the first transmission shaft are connected by a multi-stage gear transmission.

[0009] Furthermore, the novel motor connection structure of the rotary reducer also includes a first transmission gear, a second transmission shaft, a second transmission gear, a speed regulating gear, a third transmission shaft, a third transmission gear, and a fourth transmission gear;

[0010] The first transmission gear is fixedly connected to the first transmission shaft. The second and third transmission shafts are rotatably connected to the mounting housing through bearings. The second and third transmission shafts are parallel to the first transmission shaft and the output shaft of the drive motor. The second transmission shaft is fixedly connected to the second transmission gear and the speed regulating gear. The third transmission shaft is fixedly connected to the third transmission gear. The fourth transmission gear is fixedly connected to the output shaft of the drive motor.

[0011] The fourth transmission gear meshes with the third transmission gear, enabling the output shaft of the drive motor to drive the third transmission shaft to rotate. The third transmission gear also meshes with the speed regulating gear, enabling the third transmission shaft to drive the second transmission shaft to rotate. The second transmission gear meshes with the first transmission gear, enabling the second transmission shaft to drive the first transmission shaft to rotate. In this way, the output shaft of the drive motor and the first transmission shaft are connected through a multi-stage gear transmission, which in turn drives the worm gear of the rotary reducer to rotate. This multi-stage transmission connection allows the drive motor to extend its position further, further avoiding obstructing the rotation of the solar photovoltaic panel and enabling the solar photovoltaic panel to have a larger rotation adjustment range.

[0012] Preferably, a first bushing is fixedly connected to the end of the first drive shaft, and a flat key is fixedly connected to the outer wall of the first bushing; a second bushing is fixedly connected to the end of the worm of the rotary reducer, and a keyway is provided on the inner wall of the second bushing.

[0013] When the second bushing can be fitted onto the first bushing, the flat key of the first bushing can be located in the keyway of the second bushing; this achieves a fixed transmission connection between the first drive shaft and the worm gear of the rotary reducer, allowing for rapid assembly between them.

[0014] Through the above technical solutions, this utility model has at least the following beneficial effects:

[0015] The novel motor connection structure of the rotary reducer described in this application also has a 90° rotation angle, which can change the connection direction between the rotary reducer and the drive motor, thereby changing the setting position of the traditional drive motor so that it will not obstruct the rotation of the solar photovoltaic panel, increasing the rotation adjustment range of the solar photovoltaic panel, and thus more effectively tracking and collecting solar energy.

[0016] Compared to the prior art described in the background section, the connection structure of this application, in the internal gear section, has both planetary gears and central external gears located within the inner ring of the internal gear, which saves installation space, shortens the center distance, and has a shorter angular distance. Furthermore, the torque is shared by multiple planetary gears, and their "hugging" meshing with the internal gear can reduce contact stress by increasing the contact area, reducing wear and improving torque transmission capacity. Compared to the transmission method of two bevel gears, this transmission is more stable, reduces the load on the central external gear, significantly improves the impact resistance at this point, and has a lower failure rate.

[0017] In a further embodiment, the multi-stage transmission connection between the output shaft of the drive motor and the first transmission shaft allows the drive motor to be positioned further away, further preventing it from obstructing the rotation of the solar photovoltaic panel and enabling the solar photovoltaic panel to have a larger range of rotational adjustment. Attached Figure Description

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of this utility model in a schematic manner. Therefore, they only show the components related to this utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of the novel motor connection structure of the rotary reducer described in the embodiments of this application;

[0020] Figure 2 This is a partial disassembly and partial sectional view of the novel motor connection structure of the rotary reducer described in the embodiments of this application;

[0021] Figure 3 This is a partial internal view of the novel motor connection structure of the rotary reducer described in the embodiments of this application. Detailed Implementation

[0022] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships are for illustrative purposes only and should not be construed as limiting this patent. If terms such as "first" and "second" are used for descriptive purposes only, they should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of the stated features. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] refer to Figures 1 to 3 A novel motor connection structure for a rotary reducer includes an internal gear 1, a mounting housing 2, a planetary gear 3, a central external gear 4, a first transmission shaft 11, a rotary reducer 5, and a drive motor 6.

[0025] The internal gear 1 is installed inside the mounting housing 2. Multiple planetary gears 3 are arranged in the inner ring of the internal gear 1 and mesh with the internal gear 1 respectively. The central external gear 4 is arranged at the center of the inner ring of the internal gear 1 and meshes with each planetary gear 3 simultaneously. In this embodiment, a total of four planetary gears 3 are arranged around the central external gear 4, and the central external gear 4 is fixedly connected to the first transmission shaft 11. The worm 502 of the rotary reducer 5 is fixedly connected to the end of the first transmission shaft 11. In this way, the planetary gears 3 and the central external gear 4 are both arranged in the inner ring of the internal gear 1, which can save installation space, shorten the center distance, and have a shorter angular distance. Moreover, the torque is shared by multiple planetary gears 3. Their "hugging" meshing with the internal gear 1 can reduce contact stress by increasing the contact area, reduce wear, and improve torque transmission capacity. Compared with the transmission method of two bevel gears, this transmission is more stable, can reduce the load on the central external gear 4, significantly improve the impact resistance at this point, and have a lower failure rate.

[0026] The output shaft of the drive motor 6 is arranged parallel to the first transmission shaft 11, and the output shaft of the drive motor 6 is connected to the first transmission shaft 11 through a multi-stage gear transmission, as detailed below:

[0027] refer to Figure 3 The novel motor connection structure of the rotary reducer also includes a first transmission gear 21, a second transmission shaft 12, a second transmission gear 22, a speed regulating gear 9, a third transmission shaft 13, a third transmission gear 23, and a fourth transmission gear 24.

[0028] The first transmission gear 21 is fixedly connected to the first transmission shaft 11. The second transmission shaft 12 and the third transmission shaft 13 are rotatably connected to the mounting housing 2 through bearings. Of course, the second transmission shaft 12 and the third transmission shaft 13 are arranged parallel to the first transmission shaft 11 and the output shaft of the drive motor 6. The second transmission shaft 12 is fixedly connected to the second transmission gear 22 and the speed regulating gear 9. The third transmission shaft 13 is fixedly connected to the third transmission gear 23. The fourth transmission gear 24 is fixedly connected to the output shaft of the drive motor 6.

[0029] The fourth transmission gear 24 meshes with the third transmission gear 23, enabling the output shaft of the drive motor 6 to drive the third transmission shaft 13 to rotate. The third transmission gear 23 also meshes with the speed regulating gear 9, enabling the third transmission shaft 13 to drive the second transmission shaft 12 to rotate. The second transmission gear 22 meshes with the first transmission gear 21, enabling the second transmission shaft 12 to drive the first transmission shaft 11 to rotate. In this way, the output shaft of the drive motor 6 and the first transmission shaft 11 are connected through a multi-stage gear transmission, which in turn drives the worm gear 502 of the rotary reducer 5 to rotate. This multi-stage transmission connection allows the position of the drive motor 6 to extend further, further avoiding its obstruction of the rotation of the solar photovoltaic panel, and enabling the solar photovoltaic panel to have a larger rotation adjustment range.

[0030] In this specific embodiment, reference is made to Figure 2 A first bushing 7 is fixedly connected to the end of the first drive shaft 11, and a flat key 701 is fixedly connected to the outer wall of the first bushing 7; a second bushing 8 is fixedly connected to the end of the worm 502 of the rotary reducer 5, and a keyway 801 is provided on the inner wall of the second bushing 8.

[0031] When the second bushing 8 is fitted onto the first bushing 7, the flat key 701 of the first bushing 7 can be located within the keyway 801 of the second bushing 8; thus, a fixed transmission connection is achieved between the first drive shaft 11 and the worm gear 502 of the rotary reducer 5, allowing for rapid assembly between them.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Based on the present utility model and the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel motor connection structure for a rotary reducer, characterized in that: It includes an internal gear (1), a mounting housing (2), a planetary gear (3), a central external gear (4), a first transmission shaft (11), a rotary reducer (5), and a drive motor (6); The internal gear (1) is installed inside the mounting housing (2), and multiple planetary gears (3) are arranged in the inner ring of the internal gear (1) and mesh with the internal gear (1) respectively; the central external gear (4) is arranged at the center of the inner ring of the internal gear (1) and meshes with each planetary gear (3) at the same time; the central external gear (4) is fixedly connected to the first transmission shaft (11); the worm (502) of the rotary reducer (5) is fixedly connected to the end of the first transmission shaft (11); The output shaft of the drive motor (6) is arranged parallel to the first transmission shaft (11), and the output shaft of the drive motor (6) is connected to the first transmission shaft (11) through a multi-stage gear transmission.

2. The novel motor connection structure for a rotary reducer according to claim 1, characterized in that: It also includes a first transmission gear (21), a second transmission shaft (12), a second transmission gear (22), a speed regulating gear (9), a third transmission shaft (13), a third transmission gear (23), and a fourth transmission gear (24); The first transmission gear (21) is fixedly connected to the first transmission shaft (11), the second transmission shaft (12) and the third transmission shaft (13) are rotatably connected to the mounting housing (2), the second transmission shaft (12) is fixedly connected to the second transmission gear (22) and the speed regulating gear (9), the third transmission shaft (13) is fixedly connected to the third transmission gear (23), and the fourth transmission gear (24) is fixedly connected to the output shaft of the drive motor (6); The fourth transmission gear (24) meshes with the third transmission gear (23), the third transmission gear (23) meshes with the speed regulating gear (9), and the second transmission gear (22) meshes with the first transmission gear (21).

3. A novel motor connection structure for a rotary reducer according to claim 1 or 2, characterized in that: A first bushing (7) is fixedly connected to the end of the first drive shaft (11), and a flat key (701) is fixedly connected to the outer wall of the first bushing (7); a second bushing (8) is fixedly connected to the end of the worm (502) of the rotary reducer (5), and a keyway (801) is provided on the inner wall of the second bushing (8); The second bushing (8) can be fitted onto the first bushing (7), and the flat key (701) of the first bushing (7) can be located in the keyway (801) of the second bushing (8).

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