Four-stage transmission speed reducer

Abstract

The utility model provides a four-stage transmission speed reducer, belongs to the technical field of speed reducers, and solves the problems that the whole speed reducer needs to be rotated when a motor is detected and maintained at different angles due to the fact that the speed reducer is large and heavy, and the motor is inconvenient to detect and maintain. The four-stage transmission speed reducer comprises a motor, a cover plate is fixed to the motor, a rotating shell is fixed to the cover plate, a rotating ring is rotationally connected to the rotating shell, a flange plate is fixed to the rotating ring, a plurality of threaded holes are formed in the flange plate and the rotating shell, the flange plate is connected with the threaded holes in the rotating shell through screws, and a shell is fixed to the flange plate. A speed reducing plate is fixedly connected to the upper end of the shell, a first speed reducing mechanism is arranged on the motor, a second speed reducing mechanism is arranged on the first speed reducing mechanism, and a third speed reducing mechanism is arranged on the second speed reducing mechanism. The speed reducer has the advantage that the whole speed reducer does not need to be rotated when the motor is detected and maintained at different angles.

Description

Technical Field

[0001] The utility model belongs to the technical field of speed reducers, and relates to a four-stage transmission speed reducer, in particular to a four-stage transmission speed reducer. Background Art

[0002] A speed reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid housing, and 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 torques between a prime mover and a working machine or an actuator, and is widely used in modern machinery.

[0003] In the existing speed reducer, there is a motor. Since the speed reducer is relatively large and heavy, when detecting and repairing the motor at different angles, the entire speed reducer needs to be rotated, which is inconvenient for detecting and repairing the motor. Summary of the Utility Model

[0004] The purpose of the utility model is to address the above problems in the existing technology and propose a four-stage transmission speed reducer. The technical problem to be solved by this utility model is: how to achieve that when detecting and repairing the motor at different angles, the entire speed reducer does not need to be rotated.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] A four-stage transmission speed reducer includes a motor, a cover plate is fixed on the motor, a rotating shell is fixed on the cover plate, a rotating ring is rotatably connected to the rotating shell, a flange is fixed on the rotating ring, a plurality of threaded holes are opened on both the flange and the rotating shell, and the threaded holes on the flange and the rotating shell are connected by screws. An outer shell is fixed on the flange, a support assembly is arranged between the outer shell and the rotating shell, a speed reduction plate is fixed on the upper end of the outer shell, a first speed reduction mechanism is arranged on the motor, a second speed reduction mechanism is arranged on the first speed reduction mechanism, a third speed reduction mechanism is arranged on the second speed reduction mechanism, and a fourth speed reduction mechanism is arranged between the third speed reduction mechanism and the speed reduction plate.

[0007] The working principle of the utility model is: start the motor, drive the first speed reduction mechanism to move, the first speed reduction mechanism drives the second speed reduction mechanism to move, the second speed reduction mechanism drives the third speed reduction mechanism to move, and the third speed reduction mechanism drives the fourth speed reduction mechanism to move, realizing four-stage speed reduction of the speed output by the output shaft of the motor, so that the final speed is transmitted to the speed reduction plate. When it is necessary to detect and repair the motor, rotate the rotating shell to drive the motor to rotate, but it will not drive the entire speed reducer to rotate, which is convenient for detecting and repairing the motor.

[0008] The support assembly includes a clamping groove opened on the inner wall of the outer shell, a notch is opened on the outer wall of the rotating shell, and the clamping groove and the notch are connected by two bearings I.

[0009] With the above structure, by installing Bearing 1, the friction generated by the rotation between the rotating shell and the outer shell is reduced, and the outer shell is supported.

[0010] The first reduction mechanism includes Pinion 1 fixed to the end of the motor output shaft. The end of the motor output shaft is rotatably connected to Carrier Plate 1. Two Shafts 1 are fixed to the lower end of Carrier Plate 1. Shaft 1 is connected to Gear 1 through Bearing 2. Gear 1 is meshed with Pinion 1.

[0011] With the above structure, by installing Gear 1 and Pinion 1, starting the motor to drive Pinion 1 to rotate, Pinion 1 drives two Gears 1 to rotate, and Gear 1 drives Carrier Plate 1 to rotate, achieving primary reduction.

[0012] The second reduction mechanism includes Rotating Column 1 fixed to the upper end of Carrier Plate 1. Pinion 2 is fixed to Rotating Column 1. Rotating Column 1 is rotatably connected to Carrier Plate 2. Two Shafts 2 are fixed to the lower end of Carrier Plate 2. Shaft 2 is connected to Gear 2 through Bearing 3. Gear 2 is meshed with Pinion 2.

[0013] With the above structure, by installing Gear 2 and Pinion 2, Carrier Plate 1 drives Pinion 2 to rotate, Pinion 2 drives two Gears 2 to rotate, and Gear 2 drives Carrier Plate 2 to rotate, achieving secondary reduction.

[0014] The third reduction mechanism includes Rotating Column 2 fixed to the upper end of Carrier Plate 2. Pinion 3 is fixed to Rotating Column 2. Rotating Column 2 is rotatably connected to Carrier Plate 3. Three Shafts 3 are fixed to the lower end of Carrier Plate 3. Shaft 3 is connected to Gear 3 through Bearing 4. Gear 3 is meshed with Pinion 3.

[0015] With the above structure, by installing Gear 3 and Pinion 3, Carrier Plate 3 drives Pinion 3 to rotate, Pinion 3 drives three Gears 3 to rotate, and Gear 3 drives Carrier Plate 3 to rotate, achieving tertiary reduction.

[0016] The fourth reduction mechanism includes Rotating Column 3 fixed to Carrier Plate 3. Pinion 4 is fixed to Rotating Column 3. Four Shafts 4 are rotatably connected to the reduction plate. Gear 4 is fixed to Shaft 4. Gear 4 is meshed with Pinion 3.

[0017] With the above structure, by installing Pinion 4 and Gear 4, Carrier Plate 3 drives Pinion 4 to rotate, Pinion 4 drives Gear 4 to rotate, and Gear 4 drives Shaft 4 to rotate, achieving quaternary reduction.

[0018] A gear ring is fixed to the inner wall of the housing, and the gear ring is meshed and connected to the first large gear, the second large gear, and the third large gear respectively.

[0019] With the above structure, by installing the gear ring, the first large gear, the second large gear, the third large gear, and the fourth large gear are limited.

[0020] Compared with the prior art, the four-stage transmission speed reducer of the present invention has the following advantages:

[0021] 1. Start the motor to drive the first reduction mechanism to move. The first reduction mechanism drives the second reduction mechanism to move. The second reduction mechanism drives the third reduction mechanism to move. The third reduction mechanism drives the fourth reduction mechanism to move, realizing four-stage reduction of the rotational speed output by the output shaft of the motor, so that the final rotational speed is transmitted to the reduction disk. When the motor needs to be inspected and repaired, by rotating the rotating shell to drive the motor to rotate, but not driving the entire speed reducer to rotate, which is convenient for inspecting and repairing the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 is a sectional view of the present invention.

[0024] Figure 3 is an exploded view of the reduction mechanism in the present invention.

[0025] Figure 4 is another exploded view of the reduction mechanism in the present invention.

[0026] In the figure, 1. Motor; 2. Cover plate; 3. Rotating shell; 4. Rotating ring; 5. Reduction plate; 6. First bearing; 7. First small gear; 8. First bearing plate; 9. Two first rotating shafts; 10. First large gear; 11. Second bearing; 12. First rotating column; 13. Second small gear; 14. Second bearing plate; 15. Second rotating shaft; 16. Second large gear; 17. Second rotating column; 18. Third small gear; 19. Third bearing plate; 20. Third rotating shaft; 21. Third large gear; 22. Third rotating column; 23. Fourth small gear; 24. Fourth rotating shaft; 25. Fourth large gear; 26. Gear ring; 27. Third bearing; 28. Housing; 29. Fifth bearing; 30. Flange. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following are specific embodiments of the present invention in combination with the drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0028] As Figures 1 - 4As shown in the figure, this four-stage transmission reducer includes a motor 1. A cover plate 2 is fixed on the motor 1. A rotating shell 3 is fixed on the cover plate 2. A flange 30 is fixed on a rotating ring 4. A plurality of threaded holes are provided on both the flange 30 and the rotating shell 3. The threaded holes on the flange 30 and the rotating shell 3 are connected by screws. A housing 28 is fixed on the flange 30. A support assembly is arranged between the housing 28 and the rotating shell 3. A speed reduction plate 5 is fixed at the upper end of the housing 28. A first speed reduction mechanism is arranged on the motor 1. A second speed reduction mechanism is arranged on the first speed reduction mechanism. A third speed reduction mechanism is arranged on the second speed reduction mechanism. A fourth speed reduction mechanism is arranged between the third speed reduction mechanism and the speed reduction plate 5.

[0029] Start the motor 1 to drive the first speed reduction mechanism to move. The first speed reduction mechanism drives the second speed reduction mechanism to move. The second speed reduction mechanism drives the third speed reduction mechanism to move. The third speed reduction mechanism drives the fourth speed reduction mechanism to move, realizing four-stage speed reduction of the rotational speed output by the output shaft of the motor 1, so that the final rotational speed is transmitted to the speed reduction plate. When it is necessary to detect and repair the motor 1, rotate the rotating shell 3 to drive the motor 1 to rotate, but it will not drive the entire reducer to rotate, which is convenient for detecting and repairing the motor 1.

[0030] The support assembly includes a clamping groove opened on the inner wall of the housing 28. A notch is opened on the outer wall of the rotating shell 3. The clamping groove and the notch are connected by two bearings I 6.

[0031] With the above structure, by installing the bearings I 6, the friction generated by the rotation between the rotating shell 3 and the housing 28 is reduced, and the housing 28 is supported.

[0032] The first speed reduction mechanism includes a pinion I 7 fixed at the output shaft end of the motor 1. A bearing plate I 8 is rotatably connected to the output shaft end of the motor 1. Two rotating shafts I 9 are fixed at the lower end of the bearing plate I 8. The rotating shafts are connected to a gear I 10 through bearings II 11. The gear I 10 is meshed and connected with the pinion I 7.

[0033] With the above structure, by installing the gear I 10 and the pinion I 7, start the motor 1 to drive the pinion I 7 to rotate. The pinion I 7 drives the two gears I 10 to rotate. The gear I 10 drives the bearing plate I 8 to rotate, realizing primary speed reduction.

[0034] The second speed reduction mechanism includes a rotating column I 12 fixed at the upper end of the bearing plate I 8. A pinion II 13 is fixed on the rotating column I 12. A bearing plate II 14 is rotatably connected to the rotating column I 12. Two rotating shafts II 15 are fixed at the lower end of the bearing plate II 14. The rotating shafts II 15 are connected to a gear II 16 through bearings III 27. The gear II 16 is meshed and connected with the pinion II 13.

[0035] With the above structure, by installing the large gear II 16 and the small gear II 13, the carrier plate I 8 drives the small gear II 13 to rotate. The small gear II 13 drives the two large gears II 16 to rotate, and the large gears II 16 drive the carrier plate II 14 to rotate, achieving two-stage deceleration.

[0036] The third deceleration mechanism includes a rotating column II 17 fixed to the upper end of the carrier plate II 14. A small gear III 18 is fixed on the rotating column II 17. A carrier plate III 19 is rotatably connected to the rotating column II 17. Three rotating shafts III 20 are fixed to the lower end of the carrier plate III 19. The rotating shafts III 20 are connected to a large gear III 21 through bearings IV, and the large gear III 21 is meshed and connected with the small gear III 18.

[0037] With the above structure, by installing the large gear III 21 and the small gear III 18, the carrier plate III 19 drives the small gear III 18 to rotate. The small gear III 18 drives the three large gears III 21 to rotate, and the large gears III 21 drive the carrier plate III 19 to rotate, achieving three-stage deceleration.

[0038] The fourth deceleration mechanism includes a rotating column III 22 fixed to the carrier plate III 19. A small gear IV 23 is fixed on the rotating column III 22. Four rotating shafts IV 24 are rotatably connected to the deceleration plate 5. Large gears IV 25 are fixed on the rotating shafts IV 24, and the large gears IV 25 are meshed and connected with the small gear III 18.

[0039] With the above structure, by installing the small gear IV 23 and the large gears IV 25, the carrier plate III 19 drives the small gear IV 23 to rotate. The small gear IV 23 drives the large gears IV 25 to rotate, and the large gears IV 25 drive the rotating shafts IV 24 to rotate, achieving four-stage deceleration.

[0040] A gear ring 26 is fixed to the inner wall of the outer shell 28. The gear ring 26 is meshed and connected with the large gear I 10, the large gears II 16, the large gears III 21, and the large gears IV 25 respectively.

[0041] With the above structure, by installing the gear ring 26, the large gear I 10, the large gears II 16, the large gears III 21, and the large gears IV 25 are limited.

[0042] The working principle of the present utility model: Start the motor 1 to drive the first deceleration mechanism to move. The first deceleration mechanism drives the second deceleration mechanism to move. The second deceleration mechanism drives the third deceleration mechanism to move. The third deceleration mechanism drives the fourth deceleration mechanism to move, achieving four-stage deceleration of the rotational speed output by the output shaft of the motor 1, so that the final rotational speed is transmitted to the rotating shaft IV 25. When the motor 1 needs to be inspected and repaired, by rotating the rotating shell 3 to drive the motor 1 to rotate, but it will not drive the entire speed reducer to rotate, which is convenient for inspecting and repairing the motor 1.

[0043] In summary, through the rotating shell, when inspecting and repairing the motor at different angles, the function of not rotating the entire speed reducer is achieved.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A four-stage transmission speed reducer, comprising a motor (1), characterized in that, A cover plate (2) is fixed on the motor (1), a rotating shell (3) is fixed on the cover plate (2), a rotating ring (4) is rotatably connected to the rotating shell (3), a flange plate (30) is fixed on the rotating ring (4), a plurality of threaded holes are formed in both the flange plate (30) and the rotating shell (3), and the threaded holes in the flange plate (30) and the rotating shell (3) are connected by screws. An outer shell (28) is fixed on the flange plate (30), a support assembly is arranged between the outer shell (28) and the rotating shell (3), a speed reduction plate (5) is fixed at the upper end of the outer shell (28), a first speed reduction mechanism is arranged on the motor, a second speed reduction mechanism is arranged on the first speed reduction mechanism, a third speed reduction mechanism is arranged on the second speed reduction mechanism, and a fourth speed reduction mechanism is arranged between the third speed reduction mechanism and the speed reduction plate (5).

2. The four-stage transmission speed reducer according to claim 1, characterized in that The support assembly includes a card slot formed in the inner wall of the outer shell (28), a notch is formed in the outer wall of the rotating shell (3), and the card slot and the notch are connected by two first bearings (6).

3. A four-stage transmission speed reducer according to claim 1, characterized in that, The first speed reduction mechanism includes a first small gear (7) fixed at the output shaft end of the motor (1), a first bearing plate (8) is rotatably connected to the output shaft end of the motor (1), two first rotating shafts (9) are fixed at the lower end of the first bearing plate (8), a first large gear (10) is connected to the first rotating shafts (9) through second bearings (11), and the first large gear (10) is meshed with the first small gear (7).

4. A four-stage transmission speed reducer according to claim 3, characterized in that, The second speed reduction mechanism includes a first rotating column (12) fixed at the upper end of the first bearing plate (8), a second small gear (13) is fixed on the first rotating column (12), a second bearing plate (14) is rotatably connected to the first rotating column (12), two second rotating shafts (15) are fixed at the lower end of the second bearing plate (14), a second large gear (16) is connected to the second rotating shafts (15) through third bearings (27), and the second large gear (16) is meshed with the second small gear (13).

5. A four-stage transmission speed reducer according to claim 4, characterized in that, The third speed reduction mechanism includes a second rotating column (17) fixed at the upper end of the second bearing plate (14), a third small gear (18) is fixed on the second rotating column (17), a third bearing plate (19) is rotatably connected to the second rotating column (17), three third rotating shafts (20) are fixed at the lower end of the third bearing plate (19), a third large gear (21) is connected to the third rotating shafts (20) through fourth bearings, and the third large gear (21) is meshed with the third small gear (18).

6. The four-stage transmission speed reducer according to claim 5, characterized in that, The fourth speed reduction mechanism includes a third rotating column (22) fixed on the third bearing plate (19), a fourth small gear (23) is fixed on the third rotating column (22), four fourth rotating shafts (24) are rotatably connected to the speed reduction plate (5), a fourth large gear (25) is fixed on the fourth rotating shafts (24), and the fourth large gear (25) is meshed with the third small gear (18).

7. A four-stage transmission reducer according to claim 1, characterized in that, A gear ring (26) is fixed on the inner wall of the outer shell (28), and the gear ring (26) is meshed with the first large gear (10), the second large gear (16), and the third large gear (21) respectively.

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