Reduction gearbox with bidirectional output

Abstract

The utility model relates to the technical field of reduction gearboxes, in particular to a bidirectional output reduction gearbox which comprises a gearbox and two output boxes, the two output boxes are fixedly connected to the two ends of the gearbox respectively, a conversion shaft is rotationally installed on the side wall of the gearbox, and output shafts are rotationally installed at the ends of the two output boxes respectively. A first bevel gear is fixedly connected to the side wall, located in the gearbox, of the conversion shaft, two symmetrical first-stage gear speed reduction assemblies are rotationally installed in the gearbox, second-stage gear speed reduction assemblies are rotationally installed between the two output boxes and the two ends of the gearbox, and the two first-stage gear speed reduction assemblies are in meshing transmission with the first bevel gear. The first-stage gear reduction assembly and the second-stage gear reduction assembly which are independent and symmetrical are driven through the conversion shaft, the output shafts at the two ends of the reduction gearbox rotate synchronously, two sets of equipment can be driven at the same time without an external transmission mechanism, the installation space is saved, adaptability is high, and the structure is compact.

Description

A bidirectional output gearbox Technical Field

[0001] This utility model relates to the field of gearboxes, specifically a bidirectional output gearbox. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine, and plays a role in matching speed and transmitting torque between the prime mover and the working machine or actuator.

[0003] Traditional gearboxes typically employ a single output shaft design, which cannot drive two devices simultaneously. This results in low transmission efficiency and poor adaptability. If two devices need to be driven, an additional coupling is required, leading to an uncompact gearbox structure and increased size. Therefore, a bidirectional output gearbox is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a bidirectional output gearbox to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A bidirectional output reduction gearbox includes a gearbox and two output boxes. The two output boxes are respectively fixed to both ends of the gearbox. A conversion shaft is rotatably mounted on the side wall of the gearbox, and an output shaft is rotatably mounted on the end of each of the two output boxes.

[0007] The conversion shaft is fixedly connected to the side wall of the gearbox with a helical gear 1. Two sets of mutually symmetrical first-stage gear reduction assemblies are rotatably installed inside the gearbox. Two-stage gear reduction assemblies are rotatably installed between the two output boxes and both ends of the gearbox. Both sets of first-stage gear reduction assemblies mesh with the helical gear 1 for transmission. The two sets of first-stage gear reduction assemblies mesh with the two sets of second-stage gear reduction assemblies respectively. Both output shafts are fixedly connected to the side wall of the output box with a large gear 2. The two sets of large gear 2 mesh with the two sets of second-stage gear reduction assemblies respectively.

[0008] Preferably, the gearbox has a bracket fixedly connected inside, and the first-stage gear reduction assembly includes a shaft, which is rotatably mounted on the bracket. Helical gear 2 and pinion 1 are fixedly connected to both ends of the shaft, respectively. Helical gear 2 meshes with helical gear 1 for transmission, and pinion 1 is rotatably mounted to the inner wall of the gearbox and meshes with the second-stage gear reduction assembly for transmission.

[0009] Preferably, the secondary gear reduction assembly includes a large gear 1, a small gear 2 fixedly connected to the large gear 1 via a shaft, the large gear 1 being rotatably mounted on the inner wall of the gearbox and meshing with the small gear 1 for transmission, and the small gear 2 being rotatably mounted on the inner wall of the output box and meshing with the large gear 2 for transmission.

[0010] Preferably, both the gearbox and the output box have slots at their upper ends, with a sealing plate one blocking the slot of the gearbox and a sealing plate two blocking the slot of the output box.

[0011] Preferably, a screw is threaded between the sealing plate and the gearbox, a pressure plate is rotatably mounted on the upper end of the screw, the end of the pressure plate is pressed against the upper end of the sealing plate, and a screw is threaded between the end of the pressure plate and the sealing plate.

[0012] Preferably, cooling fins are fixedly connected to both the side of the gearbox and the side of the output box. A bushing one is fixedly connected to the side of the gearbox, and a bushing two is fixedly connected to the end of the output box. The conversion shaft and the output shaft rotate within bushing one and bushing two, respectively.

[0013] The beneficial effects of this utility model are:

[0014] This invention drives two independent and symmetrical first-stage and second-stage gear reduction assemblies via a conversion shaft. The output shafts at both ends of the reduction gearbox rotate synchronously, allowing two sets of equipment to be driven simultaneously without an external transmission mechanism. This saves installation space, has strong adaptability, and a compact structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a structural schematic diagram of the present invention with the sealing plate 1 and sealing plate 2 removed;

[0018] Figure 3 is a schematic diagram of the internal structure of this utility model;

[0019] Figure 4 is a schematic diagram of the internal gear set structure of this utility model;

[0020] The attached figures are labeled as follows:

[0021] 1. Gearbox; 2. Output box; 3. Heat sink fins; 4. Sealing plate one; 5. Sealing plate two; 6. Shift shaft; 7. Output shaft; 8. Retaining ring; 9. Bushing one; 10. Bushing two; 11. Helical gear one; 12. Helical gear two; 13. Bracket; 14. Shaft body; 15. Pinion one; 16. Large gear one; 17. Pinion two; 18. Large gear two; 19. Pressure plate; 20. Screw one; 21. Nut; 22. Groove. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] A bidirectional output gearbox, as shown in Figures 1-4, is formed by assembling a set of gearboxes 1 and two sets of output boxes 2. The adjacent gearboxes are connected by a fixing ring 8. The three parts can be disassembled. The output shaft 7 of the motor that needs to be decelerated is connected to the conversion shaft 6, and the output shaft 7 is connected to the device to be driven.

[0024] The rotation of the conversion shaft 6 causes the helical gear 11 to drive the first-stage gear reduction assembly to rotate, which in turn drives the second-stage gear reduction assembly to rotate. The second-stage gear reduction assembly then drives the large gear 18 to rotate, causing the output shaft 7 to rotate. The rotation of the conversion shaft 6 drives the two sets of output shafts 7 to rotate, giving this gearbox the ability to output in both directions. It can simultaneously drive two sets of equipment without the need for external couplings or other structures. The structure is compact, saves installation space, and has strong adaptability.

[0025] As shown in Figures 1-4, bracket 13 supports shaft 14. Helical gear 11 drives helical gear 2 to rotate. Helical gear 2 12 drives pinion 15 to rotate through shaft 14. Since the diameter of helical gear 2 12 is larger than the diameter of helical gear 11, the number of rotations of helical gear 11 is greater than the number of rotations of helical gear 2 12. The number of rotations of pinion 15 is the same as the number of rotations of helical gear 2 12.

[0026] A shaft is fixedly connected between the large gear 16 and the small gear 17. The shaft rotates between the gearbox 1 and the output box 2. The small gear 15 and the large gear 16 are always meshed. The small gear 15 drives the large gear 16 to rotate, the large gear 16 drives the small gear 17 to rotate, and the small gear 17 drives the large gear 18 to rotate, thereby driving the output shaft 7 to rotate.

[0027] The diameter of the large gear 16 is larger than the diameter of the small gear 15, and also larger than the diameter of the small gear 17. The number of rotations of the small gear 15 is greater than the number of rotations of the large gear 16. The number of rotations of the large gear 16 is the same as the number of rotations of the small gear 17. The diameter of the large gear 18 is greater than the diameter of the small gear 17. The number of rotations of the small gear 17 is greater than the number of rotations of the large gear 18. Therefore, the rotational speed of the conversion shaft 6 is reduced by the first-stage gear reduction assembly and the second-stage gear reduction assembly, which reduces the rotational speed of the output shaft 7.

[0028] As shown in Figures 1-3, the slot 22 facilitates the inspection and maintenance of parts inside the gearbox 1 or output box 2. The sealing plate 1 4 and sealing plate 2 5 seal the slot 22 to prevent dust or rainwater from entering the gearbox 1 or output box 2.

[0029] The bottom of screw 20 is threaded to gearbox 1 and also to sealing plate 4, thus fixing sealing plate 4 and gearbox 1. The side of screw 20 is threaded to nut 21, which can press sealing plate 4. Pressure plate 19 presses sealing plate 5. Tightening screw 2 makes screw 2 threaded to sealing plate 2 5 and output box 2. Pressure plate 19 increases the installation firmness between gearbox 1 and output box 2.

[0030] As shown in Figures 1-4, the heat dissipation fins 3 increase the heat dissipation efficiency of the surfaces of the gearbox 1 and the output box 2, and the bushings 9 and 10 reduce the wear of the conversion shaft 6 and the output shaft 7.

[0031] The working principle of the bidirectional output gearbox provided by this utility model is as follows:

[0032] In use, the conversion shaft 6 is connected to the motor. When the conversion shaft 6 rotates, the helical gear 11 drives the first-stage gear reduction assembly to rotate, the first-stage gear reduction assembly drives the second-stage gear reduction assembly to rotate, and the second-stage gear reduction assembly drives the large gear 18 to rotate, causing the output shaft 7 to rotate. The first-stage and second-stage gear reduction assemblies work together to reduce the output speed of the motor, providing bidirectional output capability. It can drive two sets of equipment to operate simultaneously without the need for external couplings or other structures. The structure is compact, saves installation space, and has strong adaptability.

[0033] 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 illustrative of the principles of this 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.

Claims

1. A bidirectional output gearbox, characterized in that, The system includes a gearbox (1) and two output boxes (2). The two output boxes (2) are fixedly connected to both ends of the gearbox (1). A conversion shaft (6) is rotatably installed on the side wall of the gearbox (1). An output shaft (7) is rotatably installed at the end of each of the two output boxes (2). A helical gear (11) is fixedly connected to the side wall of the conversion shaft (6) inside the gearbox (1). Two sets of mutually symmetrical first-stage gear reduction assemblies are rotatably installed inside the gearbox (1). A second-stage gear reduction assembly is rotatably installed between the two output boxes (2) and both ends of the gearbox (1). Both sets of first-stage gear reduction assemblies mesh with the helical gear (11) and mesh with the two sets of second-stage gear reduction assemblies respectively. A large gear (18) is fixedly connected to the side wall of each of the two output shafts (7) inside the output box (2). Both sets of large gears (18) mesh with the two sets of second-stage gear reduction assemblies respectively.

2. The bidirectional output gearbox according to claim 1, characterized in that, The gearbox (1) is internally fixed with a bracket (13). The first-stage gear reduction assembly includes a shaft (14), which is rotatably mounted on the bracket (13). Helical gear 2 (12) and pinion 1 (15) are fixedly connected to both ends of the shaft (14). Helical gear 2 (12) meshes with helical gear 1 (11) for transmission. Pinion 1 (15) is rotatably mounted on the inner wall of the gearbox (1) and meshes with the second-stage gear reduction assembly for transmission.

3. The bidirectional output gearbox according to claim 2, characterized in that, The secondary gear reduction assembly includes a large gear (16), a small gear (17) fixedly connected to the large gear (16) via a shaft, the large gear (16) is rotatably mounted on the inner wall of the gearbox (1), and the large gear (16) meshes with the small gear (15) for transmission, the small gear (17) is rotatably mounted on the inner wall of the output box (2), and the small gear (17) meshes with the large gear (18) for transmission.

4. The bidirectional output gearbox according to claim 1, characterized in that, The gearbox (1) and the output box (2) are both provided with slots (22) at their upper ends. A sealing plate (4) is provided on the slot (22) of the gearbox (1), and a sealing plate (5) is provided on the slot (22) of the output box (2).

5. A bidirectional output gearbox according to claim 4, characterized in that, A screw (20) is threaded between the sealing plate (4) and the gearbox (1). A pressure plate (19) is rotatably mounted on the upper end of the screw (20). The end of the pressure plate (19) is pressed against the upper end of the sealing plate (5), and a screw (2) is threaded between the end of the pressure plate (19) and the sealing plate (5).

6. The bidirectional output gearbox according to claim 1, characterized in that, Heat dissipation fins (3) are fixedly connected to the side of the gearbox (1) and the side of the output box (2). A bushing one (9) is fixedly connected to the side of the gearbox (1), and a bushing two (10) is fixedly connected to the end of the output box (2). The conversion shaft (6) and the output shaft (7) rotate within bushing one (9) and bushing two (10) respectively.

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