Anti-fracture reinforcing structure for output shaft of speed reducer

Abstract

The utility model relates to the technical field of speed reducers, and discloses a speed reducer output shaft anti-fracture reinforcing structure which comprises an output shaft body, a key groove is formed in the output shaft body, a shaft key is connected to the inner wall of the key groove in a sliding mode, and a clamping groove is fixedly connected to the interior of the output shaft body. A gasket is fixedly connected to the outer wall of the output shaft body, a first bolt is in threaded connection with the interior of the gasket, a reinforcing shaft sleeve is in threaded connection with the outer wall of the first bolt, an outer ring is slidably connected to the outer wall of a supporting ring, and a protection assembly is arranged on the outer wall of the outer ring and used for protecting internal elements. According to the output shaft, the key groove is formed in the output shaft body, the effect of stably transmitting torque can be achieved, the bearing capacity of the shaft can be increased and friction force can be reduced by arranging the needle bearing on the output shaft body, meanwhile, the effect of reducing the friction force can be achieved by arranging the reinforcing shaft sleeve, and then the effect of effectively preventing the output shaft body from being broken is achieved.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a reinforced structure for preventing breakage of the output shaft of a speed reducer. Background Technology

[0002] A speed reducer (also known as a gearbox or reducer) is a device that reduces input speed and increases output torque through a mechanical transmission system. Its main function is to convert the high-speed drive of a motor into a low-speed output with higher torque, thereby achieving more stable and efficient power transmission. The output shaft of a speed reducer is a crucial component, responsible for outputting the low-speed, high-torque power transmitted through gears to external equipment. It is typically connected to the internal gear system of the speed reducer, transmitting the reduced power to the mechanical load or equipment through rotation. The design and load-bearing capacity of the output shaft directly affect the performance and application of the speed reducer. When the load on the speed reducer exceeds its design capacity, the stress on the output bearing becomes excessive, potentially leading to plastic deformation or fracture. Therefore, a fracture-resistant reinforcement structure for the output shaft is needed; this structure is typically used to prevent the output shaft from breaking.

[0003] In existing technologies, the output shaft structure is usually directly and simply connected to the transmission device, which may lead to excessive friction or load-bearing capacity, causing the output shaft to break. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a fracture-resistant reinforced structure for the output shaft of a speed reducer, aiming to solve the problem that the output shaft may break due to excessive friction or load in the existing technology where the output shaft structure is usually directly and simply connected to the transmission device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fracture-resistant reinforced structure for the output shaft of a speed reducer includes an output shaft body. The output shaft body has a keyway inside, with a key slidably connected to the inner wall of the keyway. A retaining groove is fixedly connected inside the output shaft body. A washer is fixedly connected to the outer wall of the output shaft body. A first bolt is threaded into the inner wall of the washer. A reinforcing bushing is threaded into the outer wall of the first bolt. A second bolt is threaded into the inner wall of the reinforcing bushing. An arc-shaped washer is fixedly connected to the outer wall of the second bolt. The outer wall of the arc-shaped washer is slidably connected to the outer wall of the output shaft body. An inner ring is fixedly connected to the outer wall of the output shaft body. A needle roller is provided on the outer wall of the inner ring. A support ring is provided inside the needle roller. An outer ring is slidably connected to the outer wall of the support ring. A protective component is provided on the outer wall of the outer ring to protect internal components.

[0007] Preferably, the protective component includes a protective cover, the interior of which is slidably connected to the outer wall of the outer ring, and a protective shell is fixedly connected to the outer wall of the protective cover.

[0008] Preferably, a motor is fixedly connected inside the protective shell, and an input shaft is fixedly provided at the output end of the motor.

[0009] Preferably, an arc-shaped plate is fixedly connected to the outer wall of the input shaft, and a connecting shaft is rotatably connected to the inside of the arc-shaped plate.

[0010] Preferably, a first gear is fixedly connected to the outer wall of the connecting shaft, and a toothed ring is meshed with the tooth end of the first gear. The outer wall of the toothed ring is fixedly connected to the inside of the protective shell.

[0011] Preferably, the teeth of the first gear are meshed with a second gear, and a connecting column is fixedly connected to the outer wall of the second gear. The outer wall of the connecting column is rotatably connected to the inside of the protective cover.

[0012] Preferably, a positioning post is fixedly connected to the outer wall of the connecting post, and the outer wall of the positioning post is slidably connected to the inside of the output shaft body.

[0013] Preferably, one end of a strong spring is fixedly connected inside the connecting column, and the other end of the strong spring is fixedly connected to a locking block, the outer wall of the locking block being slidably connected to the inner wall of the locking groove.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting keyways at both ends of the outer wall of the output shaft body, the effect of stable torque transmission can be achieved. By setting needle roller bearings on the outer wall of the output shaft body, the bearing capacity of the shaft can be increased and the friction can be reduced. At the same time, setting reinforced bushings can further reduce the friction, thereby effectively preventing the output shaft body from breaking.

[0016] 2. In this utility model, the input shaft is driven to rotate by starting the motor, which in turn drives the arc plate to rotate, and at the same time drives the first gear and the second gear to rotate, which in turn drives the connecting column to rotate, and at the same time drives the output shaft body to rotate. By setting the positioning column, the concentricity can be adjusted, thereby improving the structural load-bearing capacity and transmission efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the anti-fracture reinforcement structure for the output shaft of the reducer proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the key of the anti-fracture reinforcement structure for the output shaft of the reducer proposed in this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the reinforced bushing of the anti-fracture reinforcement structure for the output shaft of the reducer proposed in this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the protective shell of the speed reducer output shaft anti-fracture reinforcement structure proposed in this utility model;

[0021] Figure 5 This is a partial structural diagram of the motor for the anti-fracture reinforcement structure of the reducer output shaft proposed in this utility model;

[0022] Figure 6 This is a cross-sectional view of the internal structure of the connecting column of the anti-fracture reinforcement structure for the output shaft of the speed reducer proposed in this utility model.

[0023] Legend:

[0024] 1. Output shaft body; 2. Keyway; 3. Shaft key; 4. Washer; 5. Reinforcing bushing; 6. First bolt; 7. Second bolt; 8. Slot; 9. Inner ring; 10. Support ring; 11. Needle roller; 12. Outer ring; 13. Protective shell; 14. Motor; 15. Input shaft; 16. Arc plate; 17. Connecting shaft; 18. First gear; 19. Gear ring; 20. Second gear; 21. Connecting column; 22. Strong spring; 23. Locking block; 24. Positioning column; 25. Arc washer; 26. Protective cover. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figures 1-3This utility model provides an embodiment of a speed reducer output shaft anti-breakage reinforcement structure, including an output shaft body 1, a keyway 2 inside the output shaft body 1, a key 3 slidably connected to the inner wall of the keyway 2, a retaining groove 8 fixedly connected inside the output shaft body 1, a washer 4 fixedly connected to the outer wall of the output shaft body 1, a first bolt 6 threadedly connected inside the washer 4, a reinforcing bushing 5 threadedly connected to the outer wall of the first bolt 6, a second bolt 7 threadedly connected inside the reinforcing bushing 5, an arc-shaped washer 25 fixedly connected to the outer wall of the second bolt 7, the outer wall of the arc-shaped washer 25 slidably connected to the outer wall of the output shaft body 1, an inner ring 9 fixedly connected to the outer wall of the output shaft body 1, a needle roller 11 provided on the outer wall of the inner ring 9, a support ring 10 provided inside the needle roller 11, an outer ring 12 slidably connected to the outer wall of the support ring 10, and a protective component provided on the outer wall of the outer ring 12 for protecting internal components.

[0027] Specifically, the keyway 2 inside the output shaft body 1 is used to install the shaft key 3, which transmits torque, allowing power to be effectively and stably transmitted from the output shaft body 1 of the reducer to the working parts. The output shaft body 1 is provided with a retaining groove 8, which is used to install the output shaft body 1. The output shaft body 1 fixes the washer 4, which is used to install the reinforcing bushing 5. By rotating the first bolt 6 and the second bolt 7, the reinforcing bushing 5 is connected, which in turn drives the arc-shaped washer 25 to squeeze the output shaft body 1, thereby fixing the reinforcing bushing 5. The reinforcing bushing 5 reduces wear and provides isolation and protection, which can reduce the possibility of the output shaft body 1 breaking. By setting a bearing on the outer wall of the output shaft body 1, the inner ring 9 rotates to drive the needle roller 11 to slide, and the outer ring 12 drives the support ring 10 to rotate, thereby supporting the load and reducing friction, further enhancing the anti-breakage effect of the output shaft.

[0028] Reference Figure 4 and Figure 5 The protective assembly includes a protective cover 26, the inside of which is slidably connected to the outer wall of the outer ring 12. A protective shell 13 is fixedly connected to the outer wall of the protective cover 26. A motor 14 is fixedly connected inside the protective shell 13. An input shaft 15 is fixedly installed at the output end of the motor 14. An arc-shaped plate 16 is fixedly connected to the outer wall of the input shaft 15. A connecting shaft 17 is rotatably connected inside the arc-shaped plate 16. A first gear 18 is fixedly connected to the outer wall of the connecting shaft 17. A gear ring 19 is meshed with the tooth end of the first gear 18. The outer wall of the gear ring 19 is fixedly connected to the inside of the protective shell 13. A second gear 20 is meshed with the tooth end of the first gear 18. A connecting post 21 is fixedly connected to the outer wall of the second gear 20. The outer wall of the connecting post 21 is rotatably connected to the inside of the protective cover 26.

[0029] Specifically, the protective cover 26 secures the protective shell 13, which in turn secures the motor 14. The motor 14 drives the input shaft 15 to rotate, which in turn drives the arc plate 16 to rotate. The arc plate 16 then drives the connecting shaft 17 to revolve, which in turn drives the first gear 18 to rotate. The gear ring 19 engages with the first gear 18, which in turn drives the second gear 20 to rotate, achieving a speed reduction effect. The second gear 20 then drives the connecting column 21 to rotate, which in turn drives the output shaft body 1 to rotate, thereby improving transmission efficiency and load-bearing capacity.

[0030] Reference Figure 6 A positioning post 24 is fixedly connected to the outer wall of the connecting post 21. The outer wall of the positioning post 24 is slidably connected to the inside of the output shaft body 1. One end of a strong spring 22 is fixedly connected to the inside of the connecting post 21. The other end of the strong spring 22 is fixedly connected to a locking block 23. The outer wall of the locking block 23 is slidably connected to the inner wall of the slot 8.

[0031] Specifically, the connecting column 21 fixes the positioning column 24, and the positioning column 24 accurately adjusts the concentricity to ensure that the output shaft body 1 and the transmission mechanism are on the same center, avoiding deviation that could cause the output shaft body 1 to break. The connecting column 21 is equipped with a strong spring 22, which has a strong elasticity that rebounds the locking block 23, allowing the locking block 23 to slide inside the output shaft body 1, thereby achieving quick installation of the output shaft body 1.

[0032] Working principle: When the reinforcing structure is needed, it is first installed on the output shaft body 1. The reinforcing sleeve 5 slides on the outer wall of the output shaft body 1. The washer 4 and the reinforcing sleeve 5 are connected by rotating the first bolt 6. The arc-shaped washer 25 is pressed and fixed to the output shaft body 1 by rotating the second bolt 7. Installing the reinforcing sleeve 5 on the outer wall of the output shaft body 1 can reduce the wear of the output shaft body 1, thereby effectively reducing the possibility of breakage. The shaft key 3 is installed on the inner wall of the keyway 2 to transmit torque and allow power to be transmitted effectively. When the output shaft body 1 needs to be installed on the reducer, the positioning column 24 and the connecting column 21 slide inside the output shaft body 1, thereby causing the locking block 23 to slide on the inner wall of the slot 8. At the same time, the rebound action of the strong spring 22 achieves the fixation of the output shaft. The main body 1 serves a quick installation function. By setting a bearing on the outer wall of the output shaft body 1, the output shaft body 1 drives the inner ring 9 to rotate, which in turn drives the support ring 10 to slide inside the outer ring 12, and at the same time drives the needle roller 11 to rotate. This can reduce friction and support the load, further reducing the possibility of the output shaft body 1 breaking. When the output shaft body 1 needs to be driven to work, the motor 14 inside the protective shell 13 is started to drive the input shaft 15 to rotate, which in turn drives the arc plate 16 to rotate, and at the same time drives the connecting shaft 17 and the first gear 18 to rotate. Through the meshing of the gear ring 19 with the first gear 18, the second gear 20 can be driven to rotate, which in turn drives the connecting column 21 to rotate inside the protective cover 26, thus providing power to the output shaft body 1 and driving the output shaft body 1 to rotate, thereby improving the transmission efficiency and load-bearing capacity.

[0033] This structure not only reduces friction and enhances the resistance to breakage at the output end, but also improves transmission efficiency and load-bearing capacity.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fracture-resistant reinforced structure for the output shaft of a speed reducer, comprising an output shaft body (1), characterized in that: The output shaft body (1) has a keyway (2) inside, and a key (3) is slidably connected to the inner wall of the keyway (2). A slot (8) is fixedly connected inside the output shaft body (1). A washer (4) is fixedly connected to the outer wall of the output shaft body (1). A first bolt (6) is threaded inside the washer (4). A reinforcing bushing (5) is threaded to the outer wall of the first bolt (6). A second bolt (7) is threaded inside the reinforcing bushing (5). An arc-shaped gasket (25) is fixedly connected to the outer wall of the output shaft body (1). The outer wall of the arc-shaped gasket (25) is slidably connected to the outer wall of the output shaft body (1). An inner ring (9) is fixedly connected to the outer wall of the output shaft body (1). A needle roller (11) is provided on the outer wall of the inner ring (9). A support ring (10) is provided inside the needle roller (11). An outer ring (12) is slidably connected to the outer wall of the support ring (10). A protective component is provided on the outer wall of the outer ring (12). The protective component is used to protect the internal components.

2. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 1, characterized in that: The protective component includes a protective cover (26), the interior of which is slidably connected to the outer wall of the outer ring (12), and a protective shell (13) is fixedly connected to the outer wall of the protective cover (26).

3. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 2, characterized in that: A motor (14) is fixedly connected inside the protective shell (13), and an input shaft (15) is fixedly provided at the output end of the motor (14).

4. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 3, characterized in that: An arc-shaped plate (16) is fixedly connected to the outer wall of the input shaft (15), and a connecting shaft (17) is rotatably connected inside the arc-shaped plate (16).

5. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 4, characterized in that: The outer wall of the connecting shaft (17) is fixedly connected to a first gear (18), and the tooth end of the first gear (18) is meshed with a toothed ring (19). The outer wall of the toothed ring (19) is fixedly connected to the inside of the protective shell (13).

6. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 5, characterized in that: The tooth end of the first gear (18) is meshed with the second gear (20), and the outer wall of the second gear (20) is fixedly connected to the connecting column (21), and the outer wall of the connecting column (21) is rotatably connected to the inside of the protective cover (26).

7. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 6, characterized in that: The outer wall of the connecting column (21) is fixedly connected to the positioning column (24), and the outer wall of the positioning column (24) is slidably connected to the inside of the output shaft body (1).

8. The anti-fracture reinforcement structure for the output shaft of the reducer according to claim 6, characterized in that: One end of a powerful spring (22) is fixedly connected inside the connecting column (21), and the other end of the powerful spring (22) is fixedly connected to a locking block (23). The outer wall of the locking block (23) is slidably connected to the inner wall of the slot (8).

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