A gear reducer output shaft assembly mechanism

Abstract

This invention discloses an output shaft assembly mechanism for a speed reducer, including a worktable, a first support platform connected to the worktable, an output shaft rotation mechanism above the first support platform, a key mounting mechanism on one side of the output shaft rotation mechanism, a second support platform below the key mounting mechanism, a worm gear fixing mechanism on the side of the key mounting mechanism away from the output shaft rotation mechanism, a third support platform below the worm gear fixing mechanism, a worm gear rotation mechanism on one side of the worm gear fixing mechanism, a fourth support platform below the worm gear rotation mechanism, an output shaft transfer mechanism below the third support platform, and a bearing mounting mechanism on one side of the output shaft transfer mechanism. The bearing mounting mechanism is bolted to the worktable. This invention has a reasonable structure and automates the assembly of the shaft, bearing, and worm gear through the cooperation between the various mechanisms, solving the problems of time-consuming, labor-intensive, and inefficient manual assembly.

Description

Technical Field

[0001] This invention relates to the field of output shaft assembly technology, and in particular to an output shaft assembly mechanism for a speed reducer. Background Technology

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

[0003] During the assembly of the reducer, one step requires installing a flat key into the keyway on the output shaft, then installing the worm gear on the output shaft, connecting the worm gear and the output shaft via the flat key, and finally installing bearings on both ends of the worm gear. Currently, these steps require manual installation. First, a hammer is used to drive the flat key into the keyway, then a press is used to install one bearing on the output shaft, and then the output shaft is flipped over and a press is used to press the worm gear and another bearing onto the output shaft. This assembly method is time-consuming, labor-intensive, and has low production efficiency. To address these problems, a solution is proposed below. Summary of the Invention

[0004] The purpose of this invention is to provide an output shaft assembly mechanism for a speed reducer, thereby solving the problems mentioned in the background art.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A reducer output shaft assembly mechanism includes a worktable, a first support platform bolted to the worktable, an output shaft rotation mechanism disposed above the first support platform, a key mounting mechanism disposed on one side of the output shaft rotation mechanism, a second support platform connected below the key mounting mechanism, the second support platform and the worktable being bolted together, a worm gear fixing mechanism disposed on the side of the key mounting mechanism away from the output shaft rotation mechanism, a third support platform disposed below the worm gear fixing mechanism, the third support platform and the worktable being bolted together, a worm gear rotation mechanism disposed on one side of the worm gear fixing mechanism, a fourth support platform disposed below the worm gear rotation mechanism, the fourth support platform and the worktable being bolted together, an output shaft transfer mechanism disposed below the third support platform, a bearing mounting mechanism disposed on one side of the output shaft transfer mechanism, the bearing mounting mechanism and the worktable being bolted together.

[0006] Using the above technical solution, the output shaft rotation mechanism rotates the keyway end of the output shaft to the top and pushes the output shaft below the flat key mounting mechanism. The flat key mounting mechanism installs the flat key into the keyway of the output shaft. The worm gear fixing mechanism is used to place the worm gear and uses the worm gear rotation mechanism to rotate the keyway end of the worm gear to the top. Then, the output shaft rotation mechanism pushes the output shaft into the worm gear, so that the output shaft and the worm gear are connected by the flat key. The output shaft transfer mechanism transfers the output shaft that has been fitted to the worm gear to the bearing mounting mechanism. The bearing mounting mechanism installs two bearings at both ends of the worm gear, completing the installation process.

[0007] Preferably, the output shaft rotation mechanism includes an output shaft discharge box, a first cylinder, and a first motor. A fifth support platform is provided below the output shaft discharge box. The fifth support platform is bolted to the worktable. The first cylinder is bolted to the first support platform. The end of the first cylinder is bolted to the first motor. A locking block is fixedly connected to the output end of the first motor. A support plate is provided below the locking block. The support plate is fixedly connected to the first support platform. The support plate and the output shaft discharge box are connected via a guide rail. A first sensor is bolted to the top of the support plate. The first sensor is electrically connected to the first motor.

[0008] Using the above technical solution, the output shaft discharge box is used to push the output shaft. The output shaft rolls down from the guide rail onto the support plate. The locking block at the end of the first motor, in cooperation with the fourth cylinder and the rotating rod, pushes the output shaft into the locking slot of the locking block and locks the output shaft. The first sensor above the support plate detects the position of the keyway and drives the first motor to rotate the locking block. The locking block drives the output shaft to rotate, rotating the side with the keyway to the top. The first cylinder pushes the first motor, and the first motor pushes the locking block and the output shaft to move on the support plate.

[0009] Preferably, the key mounting mechanism includes a key box, a second cylinder and a third cylinder. The second cylinder and the key box are both bolted to the second support platform. The third cylinder is bolted to one side of the key box. A keyway is fixedly connected to one side of the second support platform. The third cylinder is located above the support plate.

[0010] Using the above technical solution, the key box contains a key, and the key box has an opening at the bottom, allowing the key to fall freely onto the second side and the platform. When the output shaft moves below the key mounting mechanism, the second cylinder pushes the key at the bottom of the key box out onto the keyway. The key falls from the end of the keyway into the keyway of the output shaft below. The third cylinder is then activated to press the key firmly into the keyway.

[0011] Preferably, the worm gear fixing mechanism includes a worm gear vibrating disk and a first fixing block. The worm gear vibrating disk and the first fixing block are bolted to a third support platform. Two first guide rods are bolted between the worm gear vibrating disk and the first fixing block. An L-shaped telescopic rod is bolted to one side of the first fixing block. A second sensor is connected to the end of the L-shaped telescopic rod.

[0012] Using the above technical solution, the worm gear rolls down from inside the worm gear vibrating plate along the first guide rod onto the first fixed block. The first fixed block is U-shaped and lower in the middle than at both ends, so that the first fixed block can hold half of the worm gear. The second sensor above the L-shaped telescopic rod can sense the position of the keyway on the inner ring of the worm gear. In the natural state, the second sensor is at its lowest position. When the L-shaped telescopic rod is subjected to force, it can drive the second sensor to move upward.

[0013] Preferably, the worm gear rotation mechanism includes a second motor and a fourth cylinder. The fourth cylinder and the fourth support platform are bolted together. The end of the fourth cylinder is connected to the second motor. The second motor and the second sensor are electrically connected. A rotating rod is fixedly connected to the output end of the second motor.

[0014] Using the above technical solution, the fourth cylinder drives the second motor and the rotating rod to move towards the first fixed rod. The rotating rod passes through the inner ring of the worm gear. The second sensor controls the second motor to rotate, which in turn drives the rotating rod to rotate. The rotating rod then drives the worm gear to rotate, rotating the keyway on the inner ring of the worm gear to the top. The rotating rod continues to move laterally until it abuts one end of the output shaft, pushing the output shaft into the slot of the locking block. With the locking block in place, the output shaft is fixed between the rotating rod and the locking block. Then, the first and fourth cylinders work together to move the output shaft into the inner ring of the worm gear, so that the upper part of the flat key enters the keyway on the inner ring of the worm gear, completing the assembly of the output shaft and the worm gear.

[0015] Preferably, the output shaft transfer mechanism includes a fifth cylinder, a sixth cylinder, and a push rod. The fifth cylinder is bolted to the worktable, the end of the fifth cylinder is connected to the sixth cylinder, the end of the sixth cylinder is connected to the push rod, and the end of the push rod is U-shaped.

[0016] Using the above technical solution, the fifth cylinder pushes the sixth cylinder and push rod upward, causing the push rod to support the output shaft at both ends and detach from the first fixed block. The sixth cylinder pushes the push rod and worm gear to move laterally away from the first fixed block. The end of the push rod is U-shaped to facilitate lifting the output shaft.

[0017] Preferably, the bearing mounting mechanism includes a seventh cylinder and a second fixing block. The second fixing block is located on one side of the third support platform and is bolted to the worktable. The second fixing block and the third support platform are connected by a second guide rod. The seventh cylinder is located on both sides of the second fixing block. A bearing vibrating plate is provided on one side of the seventh cylinder and is bolted to the worktable. A moving block is connected to the end of the second cylinder. A bearing groove is opened at the end of the moving block, and the moving block is hollow.

[0018] Using the above technical solution, the output shaft transfer mechanism moves the output shaft to the second guide rod, and the output shaft rolls down the second guide rod onto the second fixed block. The second fixed block has the same structure as the first fixed block. Two seventh cylinders are arranged on both sides of the second fixed block. The end of the seventh cylinder is connected to a moving block. A bearing vibrating plate is arranged on one side of the moving block. The bearing rolls down from the bearing vibrating plate into the bearing groove at the end of the moving block. Then, the seventh cylinder drives the moving block and the bearing to move towards the second fixed block, and installs the bearing at both ends of the worm gear, completing the entire assembly.

[0019] Beneficial effects: This device has a simple structure. The output shaft is rotated to the upper position by the output shaft rotation mechanism, and the keyway side of the worm gear is rotated to the upper position by the worm gear rotation mechanism. Then, the first and fourth cylinders drive the output shaft to move. During the movement, the flat key installation mechanism installs the flat key into the keyway. Then, the output shaft and worm gear are assembled. Finally, the output shaft transfer mechanism moves the output shaft to the bearing installation mechanism, and the bearings are installed on both sides of the worm gear by the bearing installation mechanism. By utilizing the cooperation between the various mechanisms, the assembly is automated, and the production efficiency is improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a schematic diagram illustrating the structure of the output shaft rotation mechanism in an embodiment. Figure 3 This is a schematic diagram illustrating the structure of the flat key mounting mechanism in an embodiment. Figure 4 This is a schematic diagram illustrating the structure of the worm gear fixing mechanism in an embodiment. Figure 5 This is a schematic diagram illustrating the structure of the worm gear rotation mechanism in an embodiment. Figure 6 This is a schematic diagram illustrating the structure of the output shaft transfer mechanism in an embodiment. Figure 7 This is a schematic diagram illustrating the structure of the bearing mounting mechanism as an example.

[0021] Reference numerals: 1. Workbench; 2. First support platform; 3. Output shaft rotation mechanism; 4. Key mounting mechanism; 5. Second support platform; 6. Worm gear fixing mechanism; 7. Third support platform; 8. Worm gear rotation mechanism; 9. Fourth support platform; 10. Output shaft transfer mechanism; 11. Bearing mounting mechanism; 12. Output shaft discharge box; 13. First cylinder; 14. First motor; 15. Fifth support platform; 16. Clamping block; 17. Support plate; 18. Guide rail; 19. First sensor; 2 0. Keyway box; 21. Second cylinder; 22. Third cylinder; 23. Keyway groove; 24. Worm gear vibratory plate; 25. First fixed block; 26. First guide rod; 27. L-shaped telescopic rod; 28. Second sensor; 29. ​​Second motor; 30. Fourth cylinder; 31. Rotating rod; 32. Fifth cylinder; 33. Sixth cylinder; 34. Push rod; 35. Seventh cylinder; 36. Second fixed block; 37. Second guide rod; 38. Bearing vibratory plate; 39. Moving block; 40. Bearing groove. Detailed Implementation

[0022] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of the present invention should be considered within the protection scope of the present invention. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the protection scope of the present invention.

[0023] See Figure 1 and Figure 2 As shown, a reducer output shaft assembly mechanism includes a worktable 1, a first support platform 2 bolted to the worktable 1, and an output shaft rotation mechanism 3 mounted above the first support platform 2. The first support platform 2 raises the height of the output shaft rotation mechanism 3 to facilitate its operation. The output shaft rotation mechanism 3 includes an output shaft discharge box 12, a first cylinder 13, and a first motor 14. A fifth support platform 15 is mounted below the output shaft discharge box 12. The output shaft discharge box 12 is used to stack output shafts. A support plate 17 is fixedly connected to one side of the first support platform 2. The support plate 17 and the output shaft discharge box 12 are connected by a guide rail 18. The output shaft can roll down onto the support plate 17 on the guide rail 18. The first cylinder 13 and the first support platform 2 are bolted together. The first motor 14 is bolted to the end of the first cylinder 13. The first cylinder 13 can push the first motor 14 to move. The output end of the first motor 14 is fixedly connected to the locking block 16, which can lock one end of the output shaft. The first sensor 19 is bolted to the top of the support plate 17. The first sensor 19 and the first motor 14 are electrically connected. The first sensor 19 can sense the position of the keyway on the output shaft and control the first motor 14 to drive the output shaft to rotate the keyway to the top.

[0024] See Figure 1 and Figure 4As shown, a worm gear fixing mechanism 6 is provided at one end of the worktable 1 away from the output shaft rotation mechanism 3. The worm gear fixing mechanism 6 includes a worm gear vibrating disk 24 and a first fixing block 25. The worm gear vibrating disk 24 and the first fixing block 25 are bolted to the third support platform 7. Two first guide rods 26 are bolted between the worm gear vibrating disk 24 and the first fixing block 25. The worm gear vibrating disk 24 causes the worm gear to output vertically onto the first guide rods 26 and then roll onto the first fixing block 25. See Figure 1 , Figure 2 and Figure 5 As shown, the worm gear fixing mechanism 6 is installed on the side away from the output shaft rotating mechanism 3. The worm gear rotating mechanism 8 includes a second motor 29 and a fourth cylinder 30. The end of the fourth cylinder 30 is connected to the second motor 29. The fourth cylinder 30 can push the second motor 29 to move laterally. A rotating rod 31 is fixedly connected to the output end of the second motor 29. The rotating rod 31 moves with the second motor 29 and passes through the inner ring of the worm gear on the first fixed block 25. An L-shaped extension is bolted to one side of the first fixed block 25. The telescopic rod 27 has a second sensor 28 connected to its end. The second motor 29 is electrically connected to the second sensor 28. The second sensor senses the position of the keyway in the inner ring of the worm gear and controls the start and stop of the second motor 29, driving the rotating rod 31 and the worm gear to rotate the keyway in the inner ring of the worm gear to the top. Then the fourth cylinder 30 continues to push the rotating rod 31, so that the rotating rod 31 cooperates with the locking block 16 to lock the output shaft between the two. The first cylinder 13 and the fourth cylinder 30 cooperate to drive the output shaft to move on the support plate 17.

[0025] See Figure 1 and Figure 3 As shown, a key mounting mechanism 4 is provided on one side of the output shaft rotation mechanism 3. The key mounting mechanism 4 includes a key box 20, a second cylinder 21, and a third cylinder 22. The key box 20 is used to mount the key. The third cylinder 22 is bolted to one side of the key box 20 and is located above the support plate 17. A keyway 23 is fixedly connected to one side of the second support platform 5. When the output shaft moves below the third cylinder 22, the second cylinder 21 pushes the key to the end of the keyway 23, so that the key falls into the keyway on the output shaft. The third cylinder 22 presses down to fix the key in the keyway. Then, the first cylinder 13 and the fourth cylinder 30 continue to drive the output shaft to move, so that the output shaft passes through the inner ring of the worm gear, realizing the assembly of the output shaft and the worm gear.

[0026] See Figure 1 , Figure 4 and Figure 6As shown, an output shaft transfer mechanism 10 is provided below the third support platform 7. The output shaft transfer mechanism 10 consists of a fifth cylinder 32, a sixth cylinder 33, and a push rod 34. The fifth cylinder 32 is bolted to the worktable 1. The end of the fifth cylinder 32 is connected to the sixth cylinder 33, and the end of the sixth cylinder 33 is connected to the push rod 34. The fifth cylinder 32 pushes the sixth cylinder 33 and the push rod 34 upward, causing the push rod 34 to lift the output shaft away from the first fixed block 25. When the output shaft is separated from the first fixed block 25, it hits the second sensor 28, which can drive the L-shaped telescopic rod 27 to extend, preventing the second sensor 28 from blocking the output shaft. Subsequently, the sixth cylinder 33 pushes the push rod 34 to move laterally, moving the output shaft away from the first fixed block 25. The fifth cylinder 32 then drives the push rod 34 and the sixth cylinder 33 downward again, causing the output shaft to fall onto the second guide rod 37 between the third support platform 7 and the second fixed block 36.

[0027] See Figure 1 and Figure 7 As shown, a bearing mounting mechanism 11 is provided on one side of the output shaft transfer mechanism 10. The bearing mounting mechanism 11 includes a seventh cylinder 35 and a second fixing block 36. The second fixing block 36 is located on one side of the third support platform 7. The second fixing block 36 is used to hold the output shaft that has been installed with the worm gear. The output shaft rolls down from the second guide rod 37 onto the second fixing block 36. The seventh cylinder 35 is located on both sides of the second fixing block 36. A bearing vibrating plate 38 is provided on one side of the seventh cylinder 35. A moving block 39 is connected to the end of the seventh cylinder 35. A bearing groove 40 is opened at the end of the moving block 39. The bearing is output from the bearing vibrating plate 38 into the bearing groove 40 at the end of the moving block 39. Then, the seventh cylinder 35 drives the moving block 39 and the bearing to move towards the output shaft. The moving block 39 is hollow to facilitate the output shaft to pass through the bearing. The seventh cylinder 35 installs the bearing on both sides of the worm gear, completing the installation.

Claims

1. An output shaft assembly mechanism for a speed reducer comprising a worktable (1), characterized in that, A first support platform (2) is bolted to the workbench (1). An output shaft rotation mechanism (3) is provided above the first support platform (2). A flat key mounting mechanism (4) is provided on one side of the output shaft rotation mechanism (3). A second support platform (5) is connected below the flat key mounting mechanism (4). The second support platform (5) is bolted to the workbench (1). A worm gear fixing mechanism (6) is provided on the side of the flat key mounting mechanism (4) away from the output shaft rotation mechanism (3). A third support is provided below the worm gear fixing mechanism (6). The third support platform (7) is bolted to the worktable (1). A worm gear rotating mechanism (8) is provided on one side of the worm gear fixing mechanism (6). A fourth support platform (9) is provided below the worm gear rotating mechanism (8). The fourth support platform (9) is bolted to the worktable (1). An output shaft transfer mechanism (10) is provided below the third support platform (7). A bearing mounting mechanism (11) is provided on one side of the output shaft transfer mechanism (10). The bearing mounting mechanism (11) is bolted to the worktable (1). The output shaft rotation mechanism (3) includes an output shaft discharge box (12), a first cylinder (13), and a first motor (14). A fifth support platform (15) is provided below the output shaft discharge box (12). The fifth support platform (15) is bolted to the worktable (1). The first cylinder (13) is bolted to the first support platform (2). The end of the first cylinder (13) is bolted to the first motor (14). A locking block (16) is fixedly connected to the output end of the first motor (14). A support plate (17) is provided below the locking block (16). The support plate (17) is fixedly connected to the first support platform (2). The support plate (17) and the output shaft discharge box (12) are connected through a guide rail (18). A first sensor (19) is bolted to the top of the support plate (17). The first sensor (19) is electrically connected to the first motor (14).

2. The output shaft assembly mechanism for a speed reducer according to claim 1, characterized by The key mounting mechanism (4) includes a key box (20), a second cylinder (21) and a third cylinder (22). The second cylinder (21) and the key box (20) are both bolted to the second support platform (5). The third cylinder (22) is bolted to one side of the key box (20). A keyway (23) is fixedly connected to one side of the second support platform (5). The third cylinder (22) is located above the support plate (17).

3. The output shaft assembly mechanism for a speed reducer according to claim 1, wherein The worm gear fixing mechanism (6) includes a worm gear vibrating disk (24) and a first fixing block (25). The worm gear vibrating disk (24) and the first fixing block (25) are bolted to a third support platform (7). Two first guide rods (26) are bolted between the worm gear vibrating disk (24) and the first fixing block (25). An L-shaped telescopic rod (27) is bolted to one side of the first fixing block (25). A second sensor (28) is connected to the end of the L-shaped telescopic rod (27).

4. The output shaft assembly mechanism for a speed reducer according to claim 1, characterized in that, The worm gear rotating mechanism (8) includes a second motor (29) and a fourth cylinder (30). The fourth cylinder (30) and the fourth support platform (9) are bolted together. The end of the fourth cylinder (30) is connected to the second motor (29). The second motor (29) and the second sensor (28) are electrically connected. A rotating rod (31) is fixedly connected to the output end of the second motor (29).

5. The output shaft assembly mechanism for a speed reducer according to claim 1, characterized in that, The output shaft transfer mechanism (10) includes a fifth cylinder (32), a sixth cylinder (33) and a push rod (34). The fifth cylinder (32) is bolted to the worktable (1). The end of the fifth cylinder (32) is connected to the sixth cylinder (33). The end of the sixth cylinder (33) is connected to the push rod (34). The end of the push rod (34) is U-shaped.

6. The output shaft assembly mechanism for a speed reducer according to claim 2, characterized in that, The bearing mounting mechanism (11) includes a seventh cylinder (35) and a second fixing block (36). The second fixing block (36) is located on one side of the third support platform (7). The second fixing block (36) is bolted to the worktable (1). The second fixing block (36) and the third support platform (7) are connected by a second guide rod (37). The seventh cylinder (35) is located on both sides of the second fixing block (36). A bearing vibrating plate (38) is provided on one side of the seventh cylinder (35). The bearing vibrating plate (38) is bolted to the worktable (1). A moving block (39) is connected to the end of the second cylinder (21). A bearing groove (40) is opened at the end of the moving block (39). The moving block (39) is hollow.

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