Double-worm-gear transmission mechanism of actuating mechanism

Abstract

The utility model relates to the technical field of mechanical transmission, in particular to a double worm and gear transmission mechanism of an actuating mechanism, which comprises a box body, a box cover is detachably fixed on the top surface of the box body, and a transmission component is arranged in the box body. The transmission assembly comprises two rotating columns rotationally connected with the inner wall of the left side of the box body, two worms of which rod bodies are coaxially fixed between the right side surface of the rotating column on the same side and the inner wall of the right side of the box body, and an input shaft which is coaxially fixed on the left side surface of one rotating column and is used for driving the two worms to rotate; and the two output shafts are rotationally connected with the inner walls of the front side and the rear side of the box body, penetrate through the surface of the front side of the box body and extend to the front side of the box body. By arranging the matching structure of the box body and the detachable box cover and the transmission assembly, the problems of serious abrasion, stress concentration, large transmission fluctuation, limited load capacity, inconvenience in equipment maintenance and the like caused by single-point stress in traditional single worm gear transmission are solved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, specifically to a double worm gear transmission mechanism for an actuator. Background Technology

[0002] In the field of mechanical transmission, worm gear transmission mechanisms are widely used in various mechanical equipment due to their advantages such as large transmission ratio, compact structure, smooth operation and self-locking.

[0003] However, traditional single worm gear transmission mechanisms have obvious defects. The single worm gear structure is in a single-point force state during operation. Under long-term operation, key components are prone to severe wear and stress concentration, which not only greatly shortens the service life of parts, but also leads to a reduction in transmission efficiency. At the same time, the transmission fluctuations caused by single-point overload seriously affect the stability and reliability of equipment operation, making it difficult to meet the requirements of high load and high precision working conditions.

[0004] Furthermore, the design of the housing and cover of traditional transmission mechanisms is not ideal, leading to numerous inconveniences in equipment maintenance. Poor sealing performance fails to effectively prevent the intrusion of external dust and impurities, resulting in contamination and wear of internal transmission components. The installation and removal of the cover are complex, lacking precise guidance and convenient auxiliary structures, increasing the difficulty of inspection and reducing maintenance efficiency. This, in turn, increases equipment maintenance costs and downtime. Therefore, we propose a dual worm gear transmission mechanism for the actuator. Utility Model Content

[0005] The purpose of this utility model is to provide a dual worm gear transmission mechanism for the actuator. By setting up a matching structure between the housing and the detachable cover, as well as transmission components, it solves the problems of severe wear, stress concentration, large transmission fluctuation, limited load capacity, and inconvenient equipment maintenance that exist in traditional single worm gear transmissions due to single-point force.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The actuator includes a dual worm gear transmission mechanism, comprising a housing with a detachable cover fixed to the top surface of the housing. Inside the housing is a transmission assembly, which includes two rotating columns rotatably connected to the left inner wall of the housing, two worms coaxially fixed between the right surface of the rotating columns and the right inner wall of the housing, an input shaft coaxially fixed to the left surface of one of the rotating columns and used to drive the two worms to rotate, and two output shafts rotatably connected to the front and rear inner walls of the housing. The output shafts penetrate the front surface of the housing and extend to the front of the housing, and a worm gear coaxially fixed to the outer circumference of the output shaft, meshing with the worm gear on the same side.

[0008] In a preferred embodiment, the transmission assembly further includes a rotating rod rotatably connected between the inner walls of the left and right sides of the housing, a connecting gear coaxially fixed on the outer wall of the rotating rod, and two drive gears located inside the housing and meshing with each other, wherein both drive gears mesh with the connecting gear.

[0009] In a preferred embodiment, the input shaft is located on the left side of the housing, and the transmission assembly further includes an L-shaped vertical plate fixed to the left surface of the housing, and the input shaft is rotatably connected to the vertical plate end of the vertical plate.

[0010] In a preferred embodiment, the two worm gears are installed inside the housing in a parallel arrangement from top to bottom, and the two turbines are installed inside the housing in a parallel arrangement from top to bottom, with the rotating rod located between the two worm gears.

[0011] These three settings transform the single-point force on the single worm gear into a two-point force, reducing wear and stress concentration, making the transmission system more stable, power transmission smoother, the input shaft more securely installed, ensuring the stability of power input, and making the transmission structure more compact and space-saving.

[0012] In a preferred embodiment, the size of the lid is adapted to the size of the box body, the box body is fixed to the top surface of the box body by a number of screws, and a sealing plate that fits tightly against the inner wall of the box body is fixed to the bottom surface of the lid.

[0013] In a preferred embodiment, two symmetrical handles are fixed on the top surface of the box lid, and the handles are U-shaped.

[0014] In a preferred embodiment, the top surface of the box is provided with a plurality of guide grooves, and the bottom surface of the box cover is fixed with a plurality of guide blocks that are slidably connected to the guide grooves on the same side of the top surface of the box.

[0015] In a preferred embodiment, the cross-sectional shape of the guide groove on the top surface of the box is I-shaped, and the shape of the guide block is I-shaped to match the shape of the guide groove on the top surface of the box.

[0016] These four features enhance the internal sealing of the enclosure, preventing dust and impurities from entering, making the handling and disassembly of the lid easier, and ensuring more precise and stable installation of the lid and enclosure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by setting up a transmission assembly including two rotating columns, two worm gears, two output shafts, and a turbine, disperses the single-point force of a single worm gear into two-point force. Simultaneously, it incorporates a rotating rod, connecting gear, and two meshing drive gears rotatably connected between the inner walls of the left and right sides of the housing. This reduces single-point wear and stress concentration, improves the overall efficiency of the transmission system, reduces transmission fluctuations caused by single-point overload, and makes operation smoother. Furthermore, the double worm gear transmission structure improves load capacity and torque output, and can also be used in equipment requiring synchronous rotation of two shafts, ensuring consistent action. This achieves the effects of improving equipment performance, expanding the application range of the equipment, and meeting the needs of various working conditions.

[0019] 2. This utility model, by setting up a housing and a detachable cover, and fixing a sealing plate that fits tightly against the inner wall of the housing on the bottom surface of the cover, and setting a guide groove on the top surface of the housing, and fixing a guide block that slides and connects to it on the bottom surface of the cover, achieves the stable installation of the transmission components inside the housing, and effectively prevents dust and impurities from entering, ensuring that the transmission components operate in a good environment. In addition, the U-shaped handle on the top surface of the cover facilitates handling and disassembly, making it easy to inspect, maintain and add lubricating oil to the internal transmission components, extending the service life of the equipment and reducing maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the box in this utility model;

[0022] Figure 3 This is a partial exploded view of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the transmission component in this utility model;

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Housing; 11. Housing cover; 12. Handle; 13. Guide block; 14. Sealing plate; 2. Transmission assembly; 21. Rotary column; 22. Worm gear; 23. Output shaft; 24. Turbine; 25. Input shaft; 26. Vertical plate; 27. Rotary rod; 28. Connecting gear; 29. ​​Drive gear. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] Please see Figures 1-2 , Figure 4 The present invention provides a technical solution: an actuator double worm gear transmission mechanism, including a housing 1, a housing cover 11 detachably fixed on the top surface of the housing 1, a transmission assembly 2 inside the housing 1, the transmission assembly 2 including two rotating columns 21 rotatably connected to the left inner wall of the housing 1, two worms 22 coaxially fixed between the right surface of the rotating column 21 on the same side and the right inner wall of the housing 1, an input shaft 25 coaxially fixed on the left surface of one of the rotating columns 21 and used to drive the two worms 22 to rotate, and two output shafts 23 rotatably connected to the inner walls of the front and rear sides of the housing 1, the output shafts 23 passing through the front surface of the housing 1 and extending to the front side of the housing 1, and a turbine 24 coaxially fixed on the outer circumferential wall of the output shaft 23 and meshing with the worm 22 on the same side;

[0028] By setting up two rotating columns 21, two worm gears 22, two output shafts 23 and a turbine 24 in the transmission assembly 2, the single-point force of the traditional single worm gear is transformed into a two-point force. This improvement effectively reduces the wear and stress concentration of key components, extends the service life of parts, and improves the overall stability and reliability of the transmission system.

[0029] The transmission assembly 2 also includes a rotating rod 27 rotatably connected between the inner walls of the left and right sides of the housing 1, a connecting gear 28 coaxially fixed on the outer circumference of the rotating rod 27, and two drive gears 29 located inside the housing 1 and meshing with each other, and both drive gears 29 meshing with the connecting gear 28.

[0030] By incorporating a rotating rod 27, a connecting gear 28, and two meshing drive gears 29 into the transmission assembly 2, the power transmission path is optimized. The meshing transmission between the gears makes the power transmission smoother and more fluid, reduces vibration and impact during transmission, and further enhances the stability and reliability of the transmission system.

[0031] The input shaft 25 is located on the left side of the housing 1. The transmission assembly 2 also includes an L-shaped vertical plate 26 fixed on the left surface of the housing 1, and the input shaft 25 is rotatably connected to the vertical end of the vertical plate 26.

[0032] The design of rotating the input shaft 25 with the L-shaped upright plate 26 provides a stable mounting support for the input shaft 25. The upright plate 26 can effectively limit the shaking of the input shaft 25, ensure the stability of the shaft position during power input, ensure stable and efficient power transmission to the transmission component 2, and maintain the normal operation of the system.

[0033] Two worm gears 22 are installed inside the housing 1 in a parallel arrangement from top to bottom, and two turbines 24 are installed inside the housing 1 in a parallel arrangement from top to bottom, with the rotating rod 27 located between the two worm gears 22.

[0034] By arranging the worm gear 22 and turbine gear 24 in parallel from top to bottom, with the rotating rod 27 located between the worm gear 22, the internal space of the housing 1 is fully utilized. This compact structural design reduces the overall volume of the transmission mechanism without reducing transmission performance, saves installation space, and makes the equipment layout more flexible.

[0035] In this embodiment, as Figures 1-3 As shown, the size of the lid 11 is adapted to the size of the body 1. The body 1 is fixed to the top surface of the body 1 by several screws, and a sealing plate 14 that fits tightly against the inner wall of the body 1 is fixed on the bottom surface of the lid 11.

[0036] The design of the detachable cover 11 on the top surface of the housing 1 simplifies the installation and disassembly of the transmission component 2. When the transmission component 2 malfunctions or requires maintenance, the cover 11 can be quickly opened, facilitating inspection, repair, and replacement of internal parts by maintenance personnel, effectively improving maintenance efficiency and reducing maintenance difficulty. The sealing plate 14 on the bottom surface of the cover 11 fits tightly against the inner wall of the housing 1, forming a good sealing structure that effectively prevents external dust and impurities from entering the housing 1, avoiding wear and contamination of the transmission component 2, ensuring that the transmission component 2 operates in a clean and healthy environment, and extending the service life of the equipment.

[0037] Two symmetrical handles 12 are fixed on the top surface of the box lid 11, and the handles 12 are U-shaped.

[0038] The U-shaped handle 12 on the top surface of the lid 11 provides a convenient point of leverage for operators. When moving or disassembling the lid 11, operators can easily grip the handle 12, making the operation process more labor-saving and convenient, improving work efficiency and reducing labor intensity.

[0039] The top surface of the box body 1 is provided with several guide grooves, and the bottom surface of the box cover 11 is fixed with several guide blocks 13 that are slidably connected to the guide grooves on the same side of the top surface of the box body 1.

[0040] The cross-sectional shape of the guide groove on the top surface of the housing 1 is I-shaped, and the shape of the guide block 13 is I-shaped to match the shape of the guide groove on the top surface of the housing 1.

[0041] The I-shaped guide groove on the top surface of the housing 1 is slidably connected to the I-shaped guide block 13 on the bottom surface of the cover 11. This provides precise guidance when installing the cover 11, ensuring that the cover 11 and the housing 1 are quickly and accurately aligned. It also enhances the stability of the connection and prevents the cover 11 from shifting or loosening during equipment operation.

[0042] In this embodiment, during actual use, power is transmitted through the input shaft 25, driving the rotating column 21 fixed coaxially with it to rotate, which in turn drives the two worm gears 22 coaxially with it to rotate synchronously. The worm gears 22 mesh with the turbine 24, transmitting power to the output shaft 23 to realize power output. In this process, the double worm gear structure disperses the single-point force into two-point force, reducing component wear and stress concentration, and improving transmission efficiency and stability.

[0043] The rotating rod 27, connecting gear 28, and two drive gears 29 in the transmission assembly 2 further optimize the power transmission path. The connecting gear 28 and the drive gears 29 mesh with each other, making the power transmission smoother, reducing vibration and impact, and ensuring stable operation of the system.

[0044] The input shaft 25 is rotatably connected to the L-shaped vertical plate 26 to obtain stable support, ensuring the stability of the shaft when power is input and avoiding shaking that affects the power transmission efficiency.

[0045] The cooperation between the housing 1 and the cover 11 provides a protective space for the transmission assembly 2. The sealing plate 14 on the bottom of the cover 11 fits against the inner wall of the housing 1 to prevent dust and impurities from entering. During handling or maintenance, the U-shaped handle 12 facilitates operation. The I-shaped guide groove cooperates with the guide block 13 to achieve quick and accurate installation of the cover 11, ensuring the overall sealing and structural stability of the housing 1.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An actuator with a double worm gear transmission mechanism, comprising a housing (1), characterized in that, The top surface of the housing (1) is detachably fixed with a cover (11). The housing (1) is equipped with a transmission assembly (2). The transmission assembly (2) includes two rotating columns (21) rotatably connected to the left inner wall of the housing (1), two worm gears (22) coaxially fixed between the right surface of the rotating column (21) on the same side and the right inner wall of the housing (1), an input shaft (25) coaxially fixed to the left surface of one of the rotating columns (21) and used to drive the two worm gears (22) to rotate, and two output shafts (23) rotatably connected to the inner walls of the front and rear sides of the housing (1). The output shafts (23) penetrate the front surface of the housing (1) and extend to the front side of the housing (1). A turbine (24) coaxially fixed to the outer circumference of the output shaft (23) meshes with the worm gear (22) on the same side.

2. The actuator double worm gear transmission mechanism according to claim 1, characterized in that: The transmission assembly (2) further includes a rotating rod (27) rotatably connected between the inner walls of the left and right sides of the housing (1), a connecting gear (28) coaxially fixed on the outer circumference of the rotating rod (27), and two drive gears (29) located inside the housing (1) and meshing with each other, and both drive gears (29) mesh with the connecting gears (28).

3. The actuator double worm gear transmission mechanism according to claim 2, characterized in that: The input shaft (25) is located on the left side of the housing (1). The transmission assembly (2) also includes an L-shaped vertical plate (26) fixed on the left side surface of the housing (1), and the input shaft (25) is rotatably connected to the vertical end of the vertical plate (26).

4. The actuator double worm gear transmission mechanism according to claim 3, characterized in that: The two worm gears (22) are installed inside the housing (1) in a parallel arrangement from top to bottom, and the two turbines (24) are installed inside the housing (1) in a parallel arrangement from top to bottom, with the rotating rod (27) located between the two worm gears (22).

5. The actuator double worm gear transmission mechanism according to claim 1, characterized in that: The size of the lid (11) is adapted to the size of the box body (1). The box body (1) is fixed to the top surface of the box body (1) by several screws, and a sealing plate (14) that fits tightly against the inner wall of the box body (1) is fixed on the bottom surface of the lid (11).

6. The actuator double worm gear transmission mechanism according to claim 5, characterized in that: Two symmetrical handles (12) are fixed on the top surface of the box cover (11), and the handles (12) are U-shaped.

7. The actuator double worm gear transmission mechanism according to claim 6, characterized in that: The top surface of the box (1) is provided with several guide grooves, and the bottom surface of the box cover (11) is fixed with several guide blocks (13) that are slidably connected to the guide grooves on the same side of the top surface of the box (1).

8. The actuator double worm gear transmission mechanism according to claim 7, characterized in that: The cross-sectional shape of the guide groove on the top surface of the box (1) is I-shaped, and the shape of the guide block (13) is I-shaped to match the shape of the guide groove on the top surface of the box (1).

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