Waterproof steering engine

Abstract

The waterproof steering engine comprises a shell, a transmission box is fixedly arranged on the upper end face of the shell, a reduction gear set is arranged in the transmission box, a buckle cover is movably arranged at the upper end of the transmission box, a connecting shaft is rotationally arranged on the buckle cover, and the connecting shaft and the buckle cover are rotationally installed through a sealing bearing. The bottom of the connecting shaft is connected with the reduction gear set, a conical block is arranged at the bottom of the buckle cover, a conical groove is correspondingly formed in the inner wall of the transmission box, the conical block is located in the conical groove, and the outer wall of the conical block is in close contact with the inner wall of the conical groove, so that the conical block is arranged at the bottom of the buckle cover, and the conical groove is formed in the transmission box; when the buckle cover is installed at the upper end of the transmission case, the outer wall of the conical block can be tightly attached to the inner wall of the conical groove along with tightening of the compression nut, so that the sealing performance of the connecting position is improved, and the good waterproof effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, and more specifically, to a waterproof servo motor. Background Technology

[0002] A servo motor is a position (angle) servo drive suitable for control systems that require continuous angle changes and the ability to maintain them. It is generally assembled from a motor, a reduction gear set, and an output shaft. Its working principle is that the receiver sends a signal to the servo motor, which is then driven by an IC on the circuit board to start rotating. The servo motor force is transmitted to the swing arm through the reduction gear. At the same time, a position detector sends back a signal to determine whether the positioning has been reached. This type of servo motor has been widely used in the field of high-end remote control toys and industrial automation, such as airplane, car and ship models, and remote control robots.

[0003] However, the existing servo motors have poor waterproof performance, with most having no waterproof function at all. Even those servo motors that do have waterproof function only have simple waterproof treatment, and water leakage is inevitable after long-term use.

[0004] Furthermore, the reduction gear set is usually located inside the servo motor, and it inevitably needs to be lubricated after long-term use. However, ordinary servos generally do not have a lubrication structure, and the cover needs to be frequently disassembled, which makes the rubber gaskets prone to wear and affects the waterproof performance. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a waterproof servo to solve the technical problem mentioned in the background art that the existing servos have poor waterproof performance, most of which have no waterproof function at all, and even those servos that have waterproof function have only done simple waterproof treatment, and water leakage is inevitable after long-term use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterproof servo motor, comprising a housing, a transmission box fixedly mounted on the upper end face of the housing, a reduction gear set inside the transmission box, a cover movably mounted on the upper end of the transmission box, a connecting shaft rotatably mounted on the cover, the connecting shaft and the cover being rotatably mounted using a sealed bearing, the bottom of the connecting shaft being connected to the reduction gear set, a conical block being provided at the bottom of the cover, a conical groove being correspondingly opened on the inner wall of the transmission box, the conical block being located inside the conical groove, and its outer wall being in close contact with the inner wall of the conical groove, threaded posts being fixedly mounted on the upper end face of the transmission box at each of the four corners, the cover being movably mounted to the threaded posts, a clamping nut being provided on each threaded post, the clamping nut being threadedly connected to the threaded post, and an oil injection tank being fixedly mounted on the inner wall of the transmission box on one side of the reduction gear set.

[0009] The present invention is further configured such that an oil injector is provided on the outer wall of the oil injection tank, an oil outlet pipe is provided on the outer wall of the housing at the bottom, the other end of the oil outlet pipe is connected to the interior of the oil injection tank, a micro pump is provided on the oil outlet pipe, and an oil leakage hole is provided on the inner wall of the transmission box at the bottom to facilitate lubrication of the reduction gear set.

[0010] The present invention is further provided that the interior of the housing is provided with a filter screen, which is located at the lower end of the oil leakage hole, so as to facilitate the filtration of impurities in the lubricating oil.

[0011] The present invention is further configured such that an external plate is fixedly provided on both sides of the housing, and a strip hole is provided on each of the external plates. A connecting screw is movably provided inside each strip hole, and the lower end of the connecting screw passes through the strip hole and is provided with a connecting nut, so as to facilitate the fixed installation of the device with an external support.

[0012] The present invention is further provided with a wave washer at the connection position of the connecting screw, the connecting nut and the outer plate, which can increase the firmness of the connecting screw during installation and prevent loosening.

[0013] The present invention is further provided with an oil drain pipe on the outer wall of the housing at the lower end, and an oil filling pipe on the upper end of the oil drain pipe on the outer wall of the housing. Both the oil drain pipe and the oil filling pipe are provided with valves to facilitate the replacement of the lubricating oil inside the housing.

[0014] The present invention is further provided with an observation window on the outer wall of the housing to facilitate the viewing of the remaining amount of lubricating oil.

[0015] The present invention is further provided with a rubber gasket at the connection position between the cover and the transmission box, which facilitates the increase of the sealing between the transmission box and the cover.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a waterproof servo motor, which has the following advantages:

[0018] 1. By setting up a transmission box, a cover, a conical block, and a clamping nut, and by setting a conical block at the bottom of the cover and a conical groove on the transmission box, when the cover is installed on the upper end of the transmission box, the outer wall of the conical block can fit tightly against the inner wall of the conical groove as the clamping nut is tightened, thereby increasing the sealing of the connection point and achieving a good waterproof effect. In addition, a rubber gasket is also set at the connection point to further enhance the sealing of the connection point and facilitate use.

[0019] 2. By setting up an oil injection tank, oil injector, and micro pump, users can add liquid lubricating oil to the housing through the oil filling pipe. During lubrication, the micro pump can be controlled to allow the oil to enter the oil injection tank through the oil outlet pipe and be sprayed out from the oil injector to lubricate the reduction gear set. Excess lubricating oil will return to the housing through the oil leakage hole for subsequent use. In addition, by setting up a filter screen, impurities in the lubricating oil can be filtered to prevent them from clogging the oil injector and facilitate recycling.

[0020] 3. By incorporating slotted holes, connecting screws, connecting nuts, and wave washers, users can connect the servo to an external bracket using the connecting screws and nuts. The slotted holes also allow for fine-tuning of the mounting position, increasing the servo's installation flexibility. Furthermore, the wave washers enhance the stability of the connecting screws during installation, preventing loosening and facilitating use. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of a waterproof servo motor in its unused state;

[0022] Figure 2 This is an overall cross-sectional view of a waterproof servo motor;

[0023] Figure 3 A schematic diagram showing the locations of the transmission box, observation window, oil drain pipe, and oil filler pipe on the housing;

[0024] Figure 4 Exploded view of the installation of connecting screws, connecting nuts, and corrugated washers;

[0025] Figure 5 This is a schematic diagram showing the positions of the reduction gear set, fuel injection tank, and fuel injector inside the transmission box.

[0026] In the diagram: 1. Housing; 2. Transmission box; 3. Reduction gear set; 4. Cover; 5. Connecting shaft; 6. Conical block; 7. Conical groove; 8. Threaded column; 9. Compression nut; 10. Injector box; 11. Injector head; 12. Oil outlet pipe; 13. Micro pump; 14. Oil leakage hole; 15. Filter screen; 16. External plate; 17. Strip hole; 18. Connecting screw; 19. Connecting nut; 20. Wave washer; 21. Oil drain pipe; 22. Oil filling pipe; 23. Valve; 24. Observation window; 25. Rubber gasket. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A waterproof servo motor includes a housing 1, a transmission box 2 fixedly mounted on the upper end face of the housing 1, a reduction gear set 3 inside the transmission box 2, a cover 4 movably mounted on the upper end of the transmission box 2, a connecting shaft 5 rotatably mounted on the cover 4, the connecting shaft 5 and the cover 4 being rotatably mounted by a sealed bearing, the bottom of the connecting shaft 5 being connected to the reduction gear set 3, a conical block 6 being provided at the bottom of the cover 4, a conical groove 7 being correspondingly opened on the inner wall of the transmission box 2, the conical block 6 being located inside the conical groove 7, and its outer wall being in close contact with the inner wall of the conical groove 7, threaded posts 8 being fixedly mounted on the upper end face of the transmission box 2 at each of the four corners, the cover 4 being movably mounted to the threaded posts 8, a clamping nut 9 being provided on each threaded post 8, the clamping nut 9 being threadedly connected to the threaded post 8, an oil injection tank 10 being fixedly mounted on the inner wall of the transmission box 2 on one side of the reduction gear set 3, an observation window 24 being provided on the outer wall of the housing 1, and a rubber gasket 25 being provided at the connection position between the cover 4 and the transmission box 2.

[0031] In this embodiment, an injection head 11 is provided on the outer wall of the injection tank 10, and an oil outlet pipe 12 is provided on the outer wall of the housing 1 at the bottom. The other end of the oil outlet pipe 12 is connected to the interior of the injection tank 10. A micro pump 13 is provided on the oil outlet pipe 12. An oil leakage hole 14 is provided on the inner wall of the transmission box 2 at the bottom. A filter screen 15 is provided inside the housing 1, and the filter screen 15 is located at the lower end of the oil leakage hole 14.

[0032] More specifically, by setting a conical block 6 at the bottom of the cover 4 and a conical groove 7 on the transmission box 2, when the cover 4 is installed on the upper end of the transmission box 2, the outer wall of the conical block 6 can fit tightly against the inner wall of the conical groove 7 as the clamping nut 9 is tightened, thereby increasing the sealing of the connection position and achieving a good waterproof effect. In addition, a rubber gasket 25 is also set at the connection position to further enhance the sealing of the connection position and facilitate use. Users can also pre-add liquid lubricating oil to the housing 1 through the oil filling pipe 22. During lubrication, the micro pump 13 can be controlled to make it enter the oil injection tank 10 through the oil outlet pipe 12 and spray it out from the oil nozzle 11 to lubricate the reduction gear set 3. Excess lubricating oil will re-enter the housing 1 through the oil leakage hole 14 for subsequent use. In addition, by setting a filter screen 15, impurities in the lubricating oil can be filtered to prevent them from clogging the oil nozzle 11 and facilitate recycling.

[0033] Please see Figure 1 , Figure 2 and Figure 4 As an implementation method for fine-tuning the installation position of the servo motor: an external plate 16 is fixedly provided on both sides of the housing 1. A strip hole 17 is provided on the external plate 16. A connecting screw 18 is movably provided inside the strip hole 17. The lower end of the connecting screw 18 passes through the strip hole 17 and is provided with a connecting nut 19. A wave washer 20 is provided at the connection position between the connecting screw 18, the connecting nut 19 and the external plate 16.

[0034] Specifically, users can connect the servo to the external bracket using the connecting screw 18 and connecting nut 19. The mounting position of the device can also be fine-tuned through the strip hole 17, increasing the flexibility of the servo during installation. Furthermore, by setting the wave washer 20, the stability of the connecting screw 18 during installation can be increased, preventing loosening and facilitating use.

[0035] Please refer to Figure 3 As a further embodiment of adding liquid lubricating oil to the housing 1: an oil drain pipe 21 is provided on the outer wall of the housing 1 at the lower end, and an oil filling pipe 22 is provided at the upper end of the oil drain pipe 21 at the outer wall of the housing 1. Both the oil drain pipe 21 and the oil filling pipe 22 are provided with valves 23.

[0036] Specifically, users can periodically replace the lubricating oil inside the housing 1 by opening valve 23, which is convenient for long-term use.

[0037] In summary, when using the overall equipment: the user can connect the servo to the external bracket using the connecting screws 18 and connecting nuts 19, and can also fine-tune the installation position of the device through the slot 17, increasing the flexibility of the servo during installation. Furthermore, by setting the wave washer 20, the pre-tightening force of the connecting screws 18 during installation can be increased, preventing loosening and facilitating use. During lubrication, the micro pump 13 can be controlled to allow the oil to enter the oil injection tank 10 through the oil outlet pipe 12 and be sprayed out from the oil nozzle 11 to lubricate the reduction gear set 3. Excess lubricating oil will be re-entered through the oil leakage hole 14. The lubricating oil is inserted into the housing 1 for easy subsequent use. The filter screen 15 can filter impurities in the lubricating oil to prevent clogging of the oil injector 11 and facilitate recycling. The tapered block 6 is set at the bottom of the cover 4 and the tapered groove 7 is set on the transmission box 2. When the cover 4 is installed on the upper end of the transmission box 2, the outer wall of the tapered block 6 can fit tightly against the inner wall of the tapered groove 7 as the clamping nut 9 is tightened, which increases the sealing of the connection and achieves a good waterproof effect. The rubber gasket 25 is also set at the connection position to further enhance the sealing of the connection position and make the waterproof effect even better.

[0038] The motors mentioned above are all controlled by controllers or drivers. Since the controllers and matching equipment are common devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof servo motor, comprising a housing (1), characterized in that: A transmission box (2) is fixedly provided on the upper end face of the housing (1). A reduction gear set (3) is provided inside the transmission box (2). A cover (4) is movably provided on the upper end of the transmission box (2). A connecting shaft (5) is rotatably provided on the cover (4). The connecting shaft (5) and the cover (4) are rotatably installed by a sealed bearing. The bottom of the connecting shaft (5) is connected to the reduction gear set (3). A conical block (6) is provided at the bottom of the cover (4). A conical groove is correspondingly opened on the inner wall of the transmission box (2). 7) The conical block (6) is located inside the conical groove (7), and its outer wall is in close contact with the inner wall of the conical groove (7). The upper end face of the transmission box (2) is fixedly provided with threaded columns (8) at the four corners. The buckle cover (4) is movably installed with the threaded column (8). The threaded column (8) is provided with a clamping nut (9). The clamping nut (9) is threadedly connected to the threaded column (8). The inner wall of the transmission box (2) is fixedly provided with an oil injection box (10) on one side of the reduction gear set (3).

2. The waterproof servo motor according to claim 1, characterized in that: The outer wall of the fuel injection tank (10) is provided with a fuel injector (11), the outer wall of the housing (1) and the bottom are provided with an oil outlet pipe (12), the other end of the oil outlet pipe (12) is connected to the interior of the fuel injection tank (10), the oil outlet pipe (12) is provided with a micro pump (13), and the inner wall of the transmission box (2) and the bottom are provided with an oil leakage hole (14).

3. A waterproof servo motor according to claim 2, characterized in that: The housing (1) is provided with a filter screen (15) inside, and the filter screen (15) is located at the lower end of the oil leakage hole (14).

4. A waterproof servo motor according to claim 1, characterized in that: Both sides of the housing (1) are fixed with an outer plate (16), and each outer plate (16) has a strip hole (17). A connecting screw (18) is movably installed inside each strip hole (17). The lower end of the connecting screw (18) passes through the strip hole (17) and is provided with a connecting nut (19).

5. A waterproof servo motor according to claim 4, characterized in that: A wave washer (20) is provided at the connection position between the connecting screw (18), the connecting nut (19) and the outer plate (16).

6. A waterproof servo motor according to claim 1, characterized in that: An oil drain pipe (21) is provided on the outer wall of the housing (1) at the lower end, and an oil filling pipe (22) is provided on the upper end of the oil drain pipe (21) at the outer wall of the housing (1). Both the oil drain pipe (21) and the oil filling pipe (22) are provided with valves (23).

7. A waterproof servo motor according to claim 1, characterized in that: An observation window (24) is provided on the outer wall of the housing (1).

8. A waterproof servo motor according to claim 1, characterized in that: A rubber pad (25) is provided at the connection position between the cover (4) and the transmission box (2).

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