A compact integrated drive structure for a small gearbox.

Abstract

This utility model relates to the field of geared motor technology, specifically a compact gearbox drive integrated structure, including a housing. A micro servo motor is fixed inside the housing. An output hole is provided on one side of the housing, and an output power shaft coaxially arranged inside the output hole is also provided. A transmission mechanism is provided inside the housing, through which the output shaft of the micro servo motor rotates. The transmission mechanism includes a worm gear and a first double gear. The output shaft of the micro servo motor is coaxially fixed with the worm gear, and the large gear of the first double gear is a worm wheel. A first rotating shaft is rotatably mounted inside the housing. This utility model consists of a micro servo motor and multiple double gears, arranged within the housing, resulting in a relatively flat overall structure and a compact design suitable for installation in confined spaces.

Description

Technical Field

[0001] This utility model relates to the field of geared motor technology, specifically to a compact gearbox drive integrated structure. Background Technology

[0002] A geared motor is an integrated unit of a speed reducer and a motor. This integrated unit is also commonly referred to as a geared motor or geared motor; it is usually assembled and supplied as a complete set with the motor by a specialized speed reducer manufacturer.

[0003] For some small machines that require the use of small motors to perform their work, the internal space of small machines is relatively small. Therefore, the small motor needs to ensure output torque while minimizing its overall size. Thus, a compact gearbox drive integrated structure is disclosed. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned in the background, the present invention provides a compact integrated structure for reducing gearbox drive.

[0005] This utility model overcomes the above technical problems by adopting the following technical solution:

[0006] A compact gearbox drive integrated structure includes a housing, inside which a micro servo motor is fixed. An output hole is provided on one side of the housing, and an output power shaft coaxially arranged inside the output hole is provided. A transmission mechanism is provided inside the housing, and the output shaft of the micro servo motor rotates the output power shaft through the transmission mechanism.

[0007] As a further embodiment of this utility model: the transmission mechanism includes a worm and a first double gear, the output shaft of the micro servo motor is coaxially fixed with the worm, the large gear of the first double gear is a worm wheel, a first rotating shaft is rotatably installed inside the housing, the first double gear is coaxially fixed with the first rotating shaft, and the large gear of the first double gear meshes with the worm.

[0008] As a further embodiment of this utility model: the transmission mechanism further includes a plurality of second double gears, a plurality of second rotating shafts are rotatably mounted inside the housing, the plurality of second double gears are laid out in the housing, the plurality of second double gears correspond one-to-one with the plurality of second rotating shafts, each second double gear is coaxially fixed with the corresponding second rotating shaft, the large gear of the second double gear adjacent to the first double gear meshes with the small gear of the first double gear, and the large and small gears of each adjacent second double gear mesh alternately.

[0009] As a further embodiment of this utility model: the transmission mechanism further includes an output gear, a rotating hole is provided on one side of the housing, a rotating column is rotatably installed inside the rotating hole, one end of the rotating column is coaxially fixed with the output gear, and the output gear meshes with the pinion of the adjacent second double gear, the output gear is coaxially arranged with the output power shaft and an adjustable clutch mechanism is provided between the two.

[0010] As a further embodiment of this utility model: the adjustable clutch mechanism includes a docking post, which is coaxially arranged with the output gear and the two are an integral structure. The output power shaft is sleeved on the docking post. A through hole is opened on the outer side of the docking post, which is coaxially arranged with it and passes through the output gear and the docking post. A plurality of sliding holes are opened on the outer circumferential wall of the docking post, all of which are connected to the through hole. A plurality of semi-circular slots are opened on the inner circumferential wall of the output power shaft. A first round-headed post is slidably arranged inside the sliding hole. An elastic structure is provided inside the through hole to push the first round head outward.

[0011] As a further embodiment of this utility model: the through hole of the docking post is connected to an adjusting threaded post by a thread, and the adjusting threaded post is conical at one end of the through hole, and the other end of the adjusting threaded post is provided with an internal hexagonal screw hole. A second round-headed post is slidably arranged inside the sliding hole. A tightening spring is arranged between the first round-headed post and the second round-headed post in the same sliding hole. The two ends of the tightening spring are in contact with the first round-headed post and the second round-headed post respectively. The tightening spring causes the round head of the second round-headed post to contact the conical head of the adjusting threaded post through a thrust.

[0012] By adopting the above structure, this utility model has the following advantages compared with the prior art:

[0013] Firstly, this utility model consists of a micro servo motor and multiple double gears. The micro servo motor and multiple double gears are laid out inside the housing, making the whole structure relatively flat and compact, which is suitable for installation in a small space.

[0014] Secondly, the output power shaft of this utility model is equipped with an adjustable clutch structure. When the output torque cannot drive the actuator, the adjustable clutch mechanism makes the output power shaft rotate relative to the internal double gear, so that the micro servo motor can work normally and avoid jamming and overload, thereby protecting the micro servo motor.

[0015] Thirdly, the clutch force of the adjustable clutch structure of this utility model can be adjusted, and the adjustable clutch structure is relatively compact, so as not to increase the overall size. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a first-view internal structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention from a second perspective.

[0019] Figure 4 This is a first-view three-dimensional structural diagram of the output gear of this utility model.

[0020] Figure 5 This is a two-dimensional structural diagram of the output gear of this utility model from a second perspective.

[0021] Figure 6 This is a first-view schematic diagram of the internal structure of the output gear of this utility model.

[0022] Figure 7 This is a schematic diagram of the internal structure of the output gear of this utility model from a second perspective.

[0023] In the diagram: 1. Housing; 2. Output power shaft; 3. Micro servo motor; 4. Worm gear; 5. First double gear; 6. Second double gear; 7. Output gear; 8. Rotating column; 9. Adjusting stud; 10. Connecting column; 11. First round head column; 12. Second round head column; 13. Tensioning spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-7 In this embodiment of the present invention, a compact gearbox drive integrated structure includes a housing 1. A micro servo motor 3 is fixed inside the housing 1. It should be noted that the specific model and specifications of the micro servo motor 3 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the field, so it will not be described in detail here. The power supply and principle of the micro servo motor 3 are clear to those skilled in the art, so they will not be described in detail here. An output hole is opened on one side of the housing 1. An output power shaft 2 is arranged coaxially with the output hole. A transmission mechanism is arranged inside the housing 1. The output shaft of the micro servo motor 3 causes the output power shaft 2 to rotate through the transmission mechanism.

[0026] Specifically, the transmission mechanism includes a worm gear 4 and a first double gear 5. The output shaft of the micro servo motor 3 is coaxially fixed with the worm gear 4. The large gear of the first double gear 5 is a worm wheel. A first rotating shaft is rotatably mounted inside the housing 1. The first double gear 5 is coaxially fixed with the first rotating shaft, and the large gear of the first double gear 5 meshes with the worm gear 4. The transmission mechanism also includes multiple second double gears 6. Multiple second rotating shafts are rotatably mounted inside the housing 1. The multiple second double gears 6 are spread out on the housing 1, and each of the multiple second double gears 6 corresponds one-to-one with the multiple second rotating shafts. The second double gear 6 is coaxially fixed with the corresponding second rotating shaft. The large gear of the second double gear 6 adjacent to the first double gear 5 meshes with the small gear of the first double gear 5. The large and small gears of each adjacent second double gear 6 mesh alternately. The transmission mechanism also includes an output gear 7. A rotating hole is opened on one side of the housing 1. A rotating column 8 is rotatably installed inside the rotating hole. One end of the rotating column 8 is coaxially fixed with the output gear 7. The output gear 7 meshes with the small gear of the second double gear 6 adjacent to it. The output gear 7 is coaxially arranged with the output power shaft 2 and an adjustable clutch mechanism is provided between the two.

[0027] As can be seen from the above connection relationship: the micro servo motor 3 causes the worm gear 4 to rotate through the output shaft. The worm gear 4 drives the large gear of the first double gear 5 to rotate the entire first double gear 5. The first double gear 5 drives the large gear on its adjacent second double gear 6 through its small gear, thereby achieving deceleration. Since the large and small gears of each adjacent second double gear 6 mesh alternately, and since the output gear 7 meshes with the small gear of its adjacent second double gear 6, the entire transmission mechanism achieves step-by-step deceleration.

[0028] Specifically, the adjustable clutch mechanism includes a docking post 10, which is coaxially arranged with the output gear 7 and the two are an integral structure. The output power shaft 2 is sleeved on the docking post 10. A through hole is opened on the outer side of the docking post 10, which is coaxially arranged with it and passes through the output gear 7 and the docking post 10. Multiple sliding holes are opened on the outer circumferential wall of the docking post 10, all of which are connected to the through hole. Multiple semi-circular slots are opened on the inner circumferential wall of the output power shaft 2. A first round head post 11 is slidably arranged inside the sliding hole. The through hole is provided with a mechanism that pushes the first round head outward. The elastic structure has an adjusting threaded post 9 connected to the through hole of the docking post 10 by a thread. The adjusting threaded post 9 is conical at one end of the through hole. The other end of the adjusting threaded post 9 is provided with an internal hexagonal screw hole. A second round head post 12 is slidably arranged inside the sliding hole. A clamping spring 13 is arranged between the first round head post 11 and the second round head post 12 in the same sliding hole. The two ends of the clamping spring 13 are in contact with the first round head post 11 and the second round head post 12 respectively. The clamping spring 13 pushes the round head of the second round head post 12 to contact the conical head of the adjusting threaded post 9.

[0029] As can be seen from the above connection relationship: by turning the adjusting stud 9 with the hexagon socket bolt, the adjusting stud 9 moves within the through hole, and the conical head of the adjusting stud 9 pushes the second round head post 12, thereby adjusting the position of the second round head post 12 within the sliding hole, thus adjusting the compression of the clamping spring 13, thereby changing the thrust of the clamping spring 13 on the first round head post 11, that is, changing the contact force between the first round head post 11 and the corresponding semi-circular hole groove; when the output torque cannot drive the actuator, the adjustable clutch mechanism causes the output power shaft 2 to rotate relative to the internal double gear, that is, the first round head post 11 is squeezed into the sliding hole, and the output power shaft 2 and the docking post 10 rotate relative to each other, so that the micro servo motor 3 can work normally, avoiding jamming and overload, thereby protecting the micro servo motor 3.

[0030] Working principle: By turning the adjusting stud 9 with the internal hex bolt, the adjusting stud 9 moves in the through hole. The conical head of the adjusting stud 9 pushes the second round head 12, thereby adjusting the position of the second round head 12 in the sliding hole, thereby adjusting the compression of the tightening spring 13, thereby changing the thrust of the tightening spring 13 on the first round head 11, that is, changing the contact force between the first round head 11 and the corresponding semi-circular groove.

[0031] Start the micro servo motor 3. The micro servo motor 3 causes the worm gear 4 to rotate through the output shaft. The worm gear 4 drives the large gear of the first double gear 5 to rotate the entire first double gear 5. The first double gear 5 drives the large gear on the adjacent second double gear 6 through the small gear on it, thereby achieving deceleration. Since the large and small gears of each adjacent second double gear 6 mesh alternately, and since the output gear 7 meshes with the small gear of the adjacent second double gear 6, the entire transmission mechanism achieves step-by-step deceleration.

[0032] When the output torque is insufficient to drive the actuator, the adjustable clutch mechanism causes the output power shaft 2 to rotate relative to the internal double gear. That is, the first round head column 11 is squeezed into the sliding hole, and the output power shaft 2 and the docking column 10 rotate relative to each other, so that the micro servo motor 3 can work normally and avoid jamming and overload, thereby protecting the micro servo motor 3.

[0033] In summary, it can be seen that it consists of a micro servo motor 3 and multiple double gears. The micro servo motor 3 and multiple double gears are laid out inside the housing 1, making the whole structure relatively flat and compact. This makes it suitable for installation in small spaces. At the same time, the adjustable clutch structure is also compact and will not increase the overall size.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A compact deceleration small gear box drive integrated structure comprising a housing (1), characterized in that, The housing (1) has a micro servo motor (3) fixed inside. An output hole is provided on one side of the housing (1). An output power shaft (2) is coaxially arranged inside the output hole. A transmission mechanism is provided inside the housing (1). The output shaft of the micro servo motor (3) rotates the output power shaft (2) through the transmission mechanism.

2. The compact gearbox drive integrated structure according to claim 1, characterized in that, The transmission mechanism includes a worm (4) and a first double gear (5). The output shaft of the micro servo motor (3) is coaxially fixed with the worm (4). The large gear of the first double gear (5) is a worm wheel. A first rotating shaft is rotatably installed inside the housing (1). The first double gear (5) is coaxially fixed with the first rotating shaft, and the large gear of the first double gear (5) meshes with the worm (4).

3. The compact reduction small gear box drive integrated structure according to claim 2, wherein, The transmission mechanism also includes a plurality of second double gears (6). A plurality of second rotating shafts are rotatably mounted inside the housing (1). The plurality of second double gears (6) are laid out on the housing (1). The plurality of second double gears (6) correspond one-to-one with the plurality of second rotating shafts. Each second double gear (6) is coaxially fixed with the corresponding second rotating shaft. The large gear of the second double gear (6) adjacent to the first double gear (5) meshes with the small gear of the first double gear (5). The large and small gears of each adjacent second double gear (6) mesh alternately.

4. The compact reduction small gear box drive integrated structure according to claim 3, wherein, The transmission mechanism also includes an output gear (7). A rotating hole is provided on one side of the housing (1). A rotating column (8) is rotatably installed inside the rotating hole. One end of the rotating column (8) is coaxially fixed with the output gear (7). The output gear (7) meshes with the pinion of the adjacent second double gear (6). The output gear (7) is coaxially arranged with the output power shaft (2) and an adjustable clutch mechanism is provided between them.

5. The compact reduction small gear box drive integrated structure according to claim 4, wherein, The adjustable clutch mechanism includes a docking post (10), which is coaxially arranged with the output gear (7) and the two are an integral structure. The output power shaft (2) is sleeved on the docking post (10). The outer side of the docking post (10) is provided with a through hole coaxially arranged with it, and the through hole passes through the output gear (7) and the docking post (10). The outer circumferential wall of the docking post (10) is provided with a plurality of sliding holes that are connected to the through hole. The inner circumferential wall of the output power shaft (2) is provided with a plurality of semi-circular slots. A first round head post (11) is slidably arranged inside the sliding hole. The through hole is provided with an elastic structure that pushes the first round head outward.

6. The compact reduction small gear box drive integrated structure according to claim 5, wherein, The through hole of the docking post (10) is connected to an adjusting threaded post by a thread, and the adjusting threaded post (9) is conical at one end of the through hole. The other end of the adjusting threaded post (9) is provided with an internal hexagonal screw hole. A second round head post (12) is slidably arranged inside the sliding hole. A tightening spring (13) is arranged between the first round head post (11) and the second round head post (12) in the same sliding hole. The two ends of the tightening spring (13) are in contact with the first round head post (11) and the second round head post (12) respectively. The tightening spring (13) pushes the round head of the second round head post (12) to contact the conical head of the adjusting threaded post (9).

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