Output assembly of a planetary gear reduction mechanism of a micromotor

Abstract

The utility model provides a kind of output assembly of micro motor planetary gear reduction mechanism belongs to output assembly technical field, including first mounting frame, two groups of planetary gear assemblies are arranged in first mounting frame, two groups of planetary gear assemblies all include internal gear, sun gear is arranged in the center of internal gear, three groups of planetary gears are arranged between sun gear and internal gear, planetary carrier is arranged in one side of three groups of planetary gears, planetary carrier is rotatably connected with three groups of planetary gears, second mounting frame is arranged in the side of first mounting frame, dial is arranged in second mounting frame, one end of one group of planetary carrier is movably provided with output shaft, through hole is opened in second mounting frame corresponding output shaft, output shaft is arranged in through hole.The device is realized multistage reduction by two groups of planetary gear assemblies, improves output torque, and realizes speed ratio switching by dial and output shaft cooperation, solve the problem that traditional output assembly does not have the ability of flexible switching speed ratio in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of output component technology, and more specifically, it relates to an output component of a micro motor planetary gear reduction mechanism. Background Technology

[0002] In the field of precision machinery driven by micro motors, planetary gear reduction mechanisms are often used for power transmission and speed regulation. In practical applications, in order to meet the power requirements under different working conditions, the reduction mechanism often needs to adjust the output speed and torque. However, the output components of traditional micro motor planetary gear reduction mechanisms do not have the ability to flexibly switch speed ratios. As a result, during operation, the equipment may experience power mismatch because it cannot adjust the speed according to load changes. When a larger torque output is required, the traditional mechanism, due to its fixed number of reduction stages, is prone to insufficient output torque under a single reduction action. This not only affects the normal operation of the equipment and reduces work efficiency, but also causes the equipment to overload due to insufficient power, increasing the probability of failure and thus increasing the maintenance cost and usage risk of the equipment. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an output component for a micro motor planetary gear reduction mechanism. This solves the technical problem that the output component of a traditional micro motor planetary gear reduction mechanism lacks the ability to flexibly switch speed ratios and suffers from insufficient output torque when greater torque output is required.

[0004] The purpose and function of the output component of the micro motor planetary gear reduction mechanism of this utility model are achieved by the following specific technical means: An output component of a micro motor planetary gear reduction mechanism includes a first mounting frame; The first mounting frame is provided with two sets of planetary gear assemblies. Both sets of planetary gear assemblies include an internal gear. A sun gear is provided at the center of the internal gear. Three sets of planetary gears are provided between the sun gear and the internal gear. A planet carrier is provided on one side of each of the three sets of planetary gears. One side of the planet carrier is rotatably connected to the three sets of planetary gears. A second mounting frame is provided on one side of the first mounting frame, and a dial is provided inside the second mounting frame. One end of one of the planetary carriers is movably provided with an output shaft. The second mounting frame has a mounting through hole corresponding to the output shaft, and the output shaft passes through the mounting through hole.

[0005] According to a preferred embodiment, a first drive shaft and a second drive shaft are respectively provided on one side of the two sets of planetary carriers. The first drive shaft is rotatably connected to the sun gear in the other set of planetary gear assemblies. The second drive shaft has a through hole corresponding to the first drive shaft, and the first drive shaft passes through the through hole.

[0006] According to a preferred embodiment, a first gear is provided at one end of the first drive shaft, a second gear is sleeved at one end of the second drive shaft, a groove is provided at one end of the output shaft corresponding to the first drive shaft and the second drive shaft, a first limiting groove is provided in the groove corresponding to the first gear, and a second limiting groove is provided at one end of the groove corresponding to the second gear.

[0007] According to a preferred embodiment, a compression plate is sleeved on one side of the second transmission shaft. Each of the three sets of planetary gears is provided with a limit rod at one end of the compression plate. Each of the three sets of limit rods is sleeved with a return spring. One set of planetary carriers is provided with a limit groove on one side of the three sets of planetary gears. The three sets of limit rods are respectively inserted into the three sets of limit grooves.

[0008] According to a preferred embodiment, one end of the output shaft contacts the compression plate, and a ball bearing is provided between the dial and the output shaft; The second mounting frame is provided with guide limiting grooves on both sides, and each side of the dial is provided with a lever corresponding to the two sets of guide limiting grooves. The lever is slidably disposed in the guide limiting groove.

[0009] According to a preferred embodiment, a connecting hole is provided on one side of the first mounting frame, and a connecting shaft is provided in the connecting hole. One end of the connecting shaft passes through one of the sun gears. The sun gear meshes with one side of the three planet gears, and one side of each of the three planet gears meshes with the internal gear.

[0010] According to a preferred embodiment, both the first mounting frame and the second mounting frame are provided with connecting protrusions on one side, and multiple sets of bolt holes are provided on one side of both sets of connecting protrusions.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses two sets of planetary gear assemblies, allowing the user to control the engagement of one end of the output shaft with the gear on the first or second transmission shaft through the cooperation of the dial, lever and guide limiting groove, thereby achieving the switching of speed ratio. This allows the user to flexibly adjust the output speed according to the actual working conditions, improving the flexibility of the device and solving the problem that the output components of traditional micro motor planetary gear reduction mechanisms do not have the ability to flexibly switch speed ratios in the prior art.

[0012] 2. By setting up two sets of planetary gear assemblies and connecting shafts, users can achieve multi-stage reduction transmission, which improves the reduction efficiency of the device. After the power is transmitted through the meshing of the sun gear, planet gears and internal gears, users can reduce the output shaft to obtain greater torque through the reduction of the two sets of planetary gear assemblies, so as to meet the power output requirements under higher loads. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the planetary gear assembly and the first mounting frame after disassembly in this utility model; Figure 4 yes Figure 3 A magnified structural diagram of region a.

[0014] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. First mounting frame; 12. Internal gear; 13. Sun gear; 14. Planet gear; 15. Planet carrier; 16. Second mounting frame; 17. Dial; 18. Output shaft; 19. First drive shaft; 21. Second drive shaft; 22. First gear; 23. Second gear; 24. Compression plate; 25. Limiting rod; 26. Return spring; 27. Connecting shaft; 28. Ball bearing; 29. ​​Lever; 31. Connecting protrusion. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example:

[0016] like Figures 1 to 3 As shown, this utility model provides an output component of a micro motor planetary gear reduction mechanism, including a first mounting frame 11. Two sets of planetary gear assemblies are arranged in the first mounting frame 11. Both sets of planetary gear assemblies include an internal gear 12. A sun gear 13 is installed at the center of the internal gear 12. Three sets of planetary gears 14 are distributed between the sun gear 13 and the internal gear 12. A planet carrier 15 is provided on the same side of the three sets of planetary gears 14. The planet carrier 15 and the three sets of planetary gears 14 are rotatably connected, so that the planetary gears 14 can rotate around their own axis and move together with the planet carrier 15. A second mounting frame 16 is mounted on one side of the first mounting frame 11. A dial 17 is provided inside the second mounting frame 16. One end of a set of planetary carriers 15 is movably connected to the output shaft 18. A through hole is provided on the second mounting frame 16 at a position corresponding to the output shaft 18. The output shaft 18 passes through the through hole, and power can be transmitted outward through this through hole.

[0017] like Figure 3 and Figure 4 As shown, a first drive shaft 19 and a second drive shaft 21 are respectively mounted on one side of the two sets of planetary carriers 15. The first drive shaft 19 is connected to the sun gear 13 in the other set of planetary gear assembly and can drive it to rotate, and further reduce speed and increase torque. A through hole is opened on the second drive shaft 21 at the position corresponding to the first drive shaft 19. The first drive shaft 19 passes through the through hole, so that the power transmission of the two sets of planetary gear assemblies can cooperate with each other.

[0018] A first gear 22 is installed at one end of the first drive shaft 19, and a second gear 23 is fitted at one end of the second drive shaft 21. A groove is provided at one end of the output shaft 18 at a position corresponding to the first drive shaft 19 and the second drive shaft 21. A first limiting groove is provided in the groove at a position corresponding to the first gear 22, and a second limiting groove is provided at one end of the groove at a position corresponding to the second gear 23. When the first gear 22 meshes with the first limiting groove or the second gear 23 meshes with the second limiting groove, different speeds can be transmitted to meet the power output requirements under different working conditions.

[0019] like Figure 4 As shown, a compression plate 24 is fitted on one side of the second transmission shaft 21. Limiting rods 25 are mounted on the ends of the compression plate 24 corresponding to the three sets of planetary gears 14. Each of the three sets of limiting rods 25 is fitted with a return spring 26. A limiting groove is opened on one side of the planetary carrier 15 corresponding to the three sets of planetary gears 14. The three sets of limiting rods 25 are inserted into the three limiting grooves respectively. The movement of the limiting rods 25 within the limiting grooves can limit the position of the compression plate 24. The return spring 26 can cause the compression plate 24 to return to its initial position after being compressed and moved. One end of the output shaft 18 contacts the compression plate 24. A ball bearing 28 is installed between the dial 17 and the output shaft 18. The ball bearing 28 can reduce the friction between the dial 17 and the output shaft 18, making their relative movement smoother. like Figure 3As shown, the second mounting frame 16 has guide limiting grooves on both sides. The dial 17 is equipped with levers 29 on both sides corresponding to the two sets of guide limiting grooves. The levers 29 slide in the guide limiting grooves. The guide limiting grooves can provide a path for the movement of the levers 29 and limit their movement direction. By moving the levers 29 to slide in the guide limiting grooves, the dial 17 can be driven to control the output shaft 18 and other components, so that the output shaft 18 can mesh with the first gear 22 or the second gear 23.

[0020] The first mounting frame 11 has a connecting hole on one side, and a connecting shaft 27 is installed in the connecting hole. One end of the connecting shaft 27 passes through one of the sun gears 13. The sun gear 13 meshes with one side of the three planet gears 14. One side of each of the three planet gears 14 meshes with the internal gear 12. The connecting shaft 27 can transmit external power to the sun gear 13. Then, through the meshing of the sun gear 13 with the planet gears 14 and the planet gears 14 with the internal gear 12, the power is transmitted and the speed is reduced. The first mounting frame 11 and the second mounting frame 16 are provided with connecting protrusions 31 on one side. Multiple bolt holes are opened on one side of the two sets of connecting protrusions 31. The first mounting frame 11 and the second mounting frame 16 can be connected to other equipment or structures through the bolt holes, which enhances the stability of the output component after installation and ensures that it will not easily shift during operation.

[0021] The specific usage and function of this embodiment are as follows: External power is transmitted to one set of sun gears 13 via connecting shaft 27. The rotation of the sun gears 13 drives the three sets of planet gears 14 meshing with them to rotate. While rotating around their own axes, the planet gears 14 roll along the inner side of the internal gear 12, thereby driving the planet carrier 15 to move, achieving first-stage reduction and increasing torque. The movement of the planet carrier 15 is transmitted to the sun gear 13 in another set of planetary gear assemblies via the first drive shaft 19, causing the sun gear 13 to rotate, which again drives the corresponding planet gears 14 and planet carrier 15 to move, completing second-stage reduction and further increasing torque. At this time, the power can be transmitted through the second drive shaft 21. When the output speed needs to be adjusted, the levers 29 on both sides of the dial 17 are moved. The levers 29 slide along the guide limiting groove of the second mounting frame 16, causing the dial 17 to move. The dial 17 pushes the output shaft 18 through the ball bearing 28. If the levers 29 are moved back, the output shaft 18 moves under the action of the compression plate 24 and the return spring 26, so that the first limiting slot in the groove meshes with the first gear 22 on the first transmission shaft 19. At this time, the output shaft 18 outputs power after the first stage of reduction. If the dial 17 is moved forward, the second limiting slot of the output shaft 18 meshes with the second gear 23 on the second transmission shaft 21, and the output shaft 18 outputs power after the second stage of reduction. Throughout the process, the limiting rod 25 moves within the limiting groove of the planetary carrier 15, restricting the position of the compression plate 24. When the lever 29 is reset, the return spring 26 drives the compression plate 24 and the output shaft 18 back to their respective positions. The bolt holes on the connecting protrusion 31 fix the first mounting frame 11 and the second mounting frame 16, ensuring that the assembly remains stable during power transmission. Through the cooperation of various components, the output assembly can flexibly output power at different speeds and torques according to actual needs, meeting the usage requirements of various working conditions.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. An output component of a micro motor planetary gear reduction mechanism, characterized in that: Includes a first mounting frame (11); The first mounting frame (11) is provided with two sets of planetary gear assemblies. Both sets of planetary gear assemblies include an internal gear (12). A sun gear (13) is provided at the center of the internal gear (12). Three sets of planetary gears (14) are provided between the sun gear (13) and the internal gear (12). A planet carrier (15) is provided on one side of each of the three sets of planetary gears (14). One side of the planet carrier (15) is rotatably connected to the three sets of planetary gears (14). A second mounting frame (16) is provided on one side of the first mounting frame (11). A dial (17) is provided inside the second mounting frame (16). An output shaft (18) is movably provided at one end of a set of planetary carriers (15). The second mounting frame (16) has a mounting through hole corresponding to the output shaft (18). The output shaft (18) passes through the mounting through hole.

2. The output component of a micro motor planetary gear reduction mechanism according to claim 1, characterized in that: The two sets of planetary carriers (15) are respectively provided with a first drive shaft (19) and a second drive shaft (21) on one side. The first drive shaft (19) is rotatably connected to the sun gear (13) in the other set of planetary gear assemblies. The second drive shaft (21) has a through hole corresponding to the first drive shaft (19), and the first drive shaft (19) passes through the through hole.

3. The output component of a micro motor planetary gear reduction mechanism according to claim 2, characterized in that: The first drive shaft (19) is provided with a first gear (22) at one end, and the second drive shaft (21) is provided with a second gear (23) at one end. The output shaft (18) has a groove at one end corresponding to the first drive shaft (19) and the second drive shaft (21). A first limiting slot is provided in the groove corresponding to the first gear (22), and a second limiting slot is provided on one side of the groove corresponding to the second gear (23).

4. The output component of a micro motor planetary gear reduction mechanism according to claim 3, characterized in that: A compression plate (24) is sleeved on one side of the second transmission shaft (21). The compression plate (24) is provided with a limit rod (25) at one end of each of the three sets of planetary gears (14). A reset spring (26) is sleeved on each of the three sets of limit rods (25). A limit groove is opened on one side of each of the three sets of planetary gears (14). The three sets of limit rods (25) are respectively inserted into the three sets of limit grooves.

5. The output component of a micro motor planetary gear reduction mechanism according to claim 4, characterized in that: One end of the output shaft (18) is in contact with the compression plate (24), and a ball bearing (28) is provided between the dial (17) and the output shaft (18). The second mounting frame (16) is provided with guide limiting grooves on both sides, and the dial (17) is provided with levers (29) on both sides corresponding to the two sets of guide limiting grooves. The levers (29) are slidably disposed in the guide limiting grooves.

6. The output component of a micro motor planetary gear reduction mechanism according to claim 1, characterized in that: The first mounting frame (11) has a connecting hole on one side, and a connecting shaft (27) is provided in the connecting hole. One end of the connecting shaft (27) passes through one of the sun gears (13). The sun gear (13) meshes with one side of the three planet gears (14), and one side of each of the three planet gears (14) meshes with the internal gear (12).

7. The output component of a micro motor planetary gear reduction mechanism according to claim 6, characterized in that: Both the first mounting frame (11) and the second mounting frame (16) have connecting protrusions (31) on one side, and multiple bolt holes are opened on one side of both sets of connecting protrusions (31).

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