Speed reducer with high sealing performance

Abstract

The utility model discloses a high-sealing-performance speed reducer, and belongs to the technical field of speed reducers. The device mainly comprises a vertical body, the vertical body is of a hollow cavity structure, a reduction gearbox cover is arranged outside a cavity, a first O-shaped ring is arranged between the reduction gearbox cover and the vertical body, an output oil seal is arranged on one side of the vertical body, an output bearing is arranged on one side of the interior of the vertical body, and a second O-shaped ring is arranged on the other side of the interior of the vertical body. An output shaft key and an output shaft are arranged on the output bearing, and the output shaft key is arranged on the outer side of the output shaft. According to the speed reducer with the high sealing performance, the first retaining ring, the second retaining ring and the third retaining ring are arranged on the vertical body, a gear bearing in the vertical body is sealed, and the input oil seal is fixed to the outer side of the first retaining ring all the time through the wave spring, so that the sealing performance of the interior of the vertical body is high; when the bearing in the vertical body rotates, the situation that sealing is not tight due to the fact that the bearing is communicated with the outside is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of speed reducers, in particular to a high-sealing-performance speed reducer. BACKGROUND

[0002] A speed reducer is an independent component composed of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, commonly used as a speed reduction transmission device between a prime mover and a working machine. The application of the speed reducer can be seen from the transmission of large power to small load and precise angle transmission, and the speed reducer has the functions of speed reduction and torque increase in industrial applications.

[0003] At present, when the speed reducer is used, the cover plate position is directly sealed by using a rubber ring, but since the bearing is in a rotating state, the lubricating oil in the bearing leaks outward or the external pollutants are brought into the bearing, resulting in insufficient lubrication and accelerated wear.

[0004] Therefore, it is necessary to provide a high-sealing-performance speed reducer to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background technology of the concept of the application, and therefore, it can contain information that does not constitute prior art. CONTENT OF THE UTILITY MODEL

[0006] Based on the above problems existing in the prior art, the application aims to solve the problem of providing a high-sealing-performance speed reducer, which seals the gear bearing inside the vertical body by setting a first clasp ring, a second clasp ring and a third clasp ring on the vertical body, and always fixes the input oil seal outside the first clasp ring by the wave spring, so that the sealing performance of the vertical body is high, and the bearing inside the vertical body is not connected with the outside when rotating, so as to avoid the problem of poor sealing.

[0007] The technical scheme adopted by the application to solve the technical problem is: a high-sealing-performance speed reducer, comprising:

[0008] A vertical body, which is a hollow cavity structure, a speed reducer cover is arranged outside the cavity, a first O-ring is arranged between the speed reducer cover and the vertical body, an output oil seal is arranged on one side of the vertical body, an output bearing is arranged on one side of the vertical body, an output shaft key and an output shaft are arranged on the output bearing, the output shaft key is arranged on the outside of the output shaft, a key is further arranged on the output shaft, and three large gears are connected to the outer end of the output shaft, a first clasp ring is arranged on the outside of the three large gears, and a needle bearing is arranged on the outside of the first clasp ring.

[0009] Further, the vertical body is internally provided with a first three-section tooth bearing and a first two-section tooth bearing on both sides, respectively, the first three-section tooth bearing is provided with a three-section pinion shaft, the three-section pinion shaft is provided with a three-section pinion shaft key and a two-section gear, and the three-section pinion shaft key is arranged inside the two-section gear, the two-section gear is externally provided with a second clasp, the second clasp is externally provided with a second three-section tooth bearing, the first two-section tooth bearing is provided with a two-section pinion shaft, and the two-section pinion shaft is provided with a two-section pinion shaft key and a one-section gear, and the two-section pinion shaft key is arranged inside the one-section gear, the one-section gear is externally provided with a third clasp, and the third clasp is externally provided with a second two-section tooth bearing.

[0010] Further, the two-section gear and the one-section gear are respectively arranged on both sides of the three-section gear, and the two-section gear and the one-section gear are respectively engaged with the three-section gear.

[0011] Further, the outer end of the reduction gearbox cover is provided with an input oil seal, the inner end of the reduction gearbox cover is provided with a positioning pin and a second O-ring, the outer side of the reduction gearbox cover is provided with an internal hexagonal screw, and the outer side of the input oil seal is provided with a wave spring, and the outer end of the wave spring is provided with a first motor bearing.

[0012] Further, the first motor bearing is internally provided with a motor gear shaft, the motor gear shaft is externally provided with a motor rotor, and the end of the motor rotor away from the motor gear shaft is provided with a second motor bearing, the outer side of the second motor bearing is provided with a waterproof motor rear cover, the waterproof motor rear cover and the reduction gearbox cover are provided with a stator coil assembly, and the outer end of the stator coil assembly is connected with a cable, and the stator coil assembly is further provided with a coil screw rod, and the coil screw rod extends outwardly through the waterproof motor rear cover.

[0013] The application has the following beneficial effects: the high-sealing-speed reducer provided by the application seals the gear bearings in the vertical body by arranging the first clasp, the second clasp and the third clasp on the vertical body, and the wave spring always fixes the input oil seal on the outer side of the first clasp, so that the sealing performance of the vertical body is high, and the bearings in the vertical body will not be connected with the outside world during rotation, so as to avoid the problem of poor sealing.

[0014] In addition to the purposes, features and advantages described above, the application has other purposes, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings accompanying the specification of the application form a part of the application and serve to provide further understanding of the application, the illustrative embodiments of the application and their descriptions serve to explain the application, and do not constitute improper limitations on the application.

[0016] In the attached diagram:

[0017] Fig. 1 This is a schematic diagram of the overall structure of a high-sealing speed reducer according to this application;

[0018] Fig. 2 This is an exploded view of a high-sealing speed reducer according to this application.

[0019] The following are the labeling elements in the figure:

[0020] 1. Vertical body; 2. Gearbox cover; 3. First O-ring; 4. Output oil seal; 5. Output bearing; 6. Output shaft key; 7. Output shaft; 8. Key; 9. Three-stage large gear; 10. First retaining ring; 11. Needle bearing; 12. First three-stage gear bearing; 13. Three-stage small gear shaft; 14. Three-stage small gear shaft key; 15. Second-stage large gear; 16. Second retaining ring; 17. Second three-stage gear bearing; 18. First two-stage gear bearing; 19. Second small gear... 20. Gear shaft; 21. Key to the second small gear shaft; 22. First large gear; 23. Third retaining ring; 24. Second second gear bearing; 25. Input oil seal; 26. Locating pin; 27. Second O-ring; 28. Socket head screw; 29. ​​Wave spring; 30. First motor bearing; 31. Motor gear shaft; 32. Motor rotor; 33. Second motor bearing; 34. Stator coil assembly; 35. Cable; 36. Waterproof motor back cover; 37. Coil screw. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] like Figs. 1-2 As shown, this application provides a high-sealing speed reducer, comprising:

[0024] The vertical body 1 is a cavity structure with hollow inside, a reduction gearbox cover 2 is arranged outside the cavity, a first O-ring 3 is arranged between the vertical body 1 and the reduction gearbox cover 2, a power output oil seal 4 is arranged on one side of the vertical body 1, a power output bearing 5 is arranged on one side inside the vertical body 1, a power output shaft key 6 and a power output shaft 7 are arranged on the power output bearing 5, the power output shaft key 6 is arranged outside the power output shaft 7, a key 8 is further arranged on the power output shaft 7, three-stage large gears 9 are connected to the outer end of the power output shaft 7, a first clasp ring 10 is arranged outside the three-stage large gears 9, and a needle bearing 11 is arranged outside the first clasp ring 10.

[0025] The vertical body 1 and the reduction gearbox cover 2 are sealed by the first O-ring 3, and the power output shaft 7 can drive the three-stage large gears 9 to rotate through the power output shaft key 6, and the outer end of the three-stage large gears 9 is sealed by the first clasp ring 10.

[0026] First three-stage gear bearings 12 and first two-stage gear bearings 18 are arranged on both sides inside the vertical body 1, three-stage small gear shafts 13 are arranged on the first three-stage gear bearings 12, three-stage small gear shaft keys 14 and two-stage large gears 15 are arranged on the three-stage small gear shafts 13, the three-stage small gear shaft keys 14 are arranged inside the two-stage large gears 15, second clasp rings 16 are arranged outside the two-stage large gears 15, second three-stage gear bearings 17 are arranged outside the second clasp rings 16, two-stage small gear shafts 19 are arranged on the first two-stage gear bearings 18, two-stage small gear shaft keys 20 and one-stage large gears 21 are arranged on the two-stage small gear shafts 19, the two-stage small gear shaft keys 20 are arranged inside the one-stage large gears 21, third clasp rings 22 are arranged outside the one-stage large gears 21, and second two-stage gear bearings 23 are arranged outside the third clasp rings 22.

[0027] The diameter of the three-stage large gears 9 is greater than the diameter of the two-stage large gears 15, and the diameter of the two-stage large gears 15 is greater than the diameter of the one-stage large gears 21.

[0028] The two-stage large gears 15 and the one-stage large gears 21 are respectively located on both sides of the three-stage large gears 9, and the two-stage large gears 15 and the one-stage large gears 21 are respectively engaged with the three-stage large gears 9.

[0029] When the three-stage large gears 9 rotate, the three-stage large gears 9 can drive the two-stage large gears 15 and the one-stage large gears 21 to rotate.

[0030] An input oil seal 24 is arranged at the outer end of the reduction gearbox cover 2, a positioning pin 25 and a second O-ring 26 are arranged at the inner end of the reduction gearbox cover 2, internal hexagonal screws 27 are arranged on the outer side of the reduction gearbox cover 2, wave springs 28 are arranged outside the input oil seal 24, and first motor bearings 29 are arranged at the outer end of the wave springs 28.

[0031] The wave springs 28 can always exert an inward thrust on the input oil seal 24.

[0032] The inside of the first motor bearing 29 is provided with a motor pinion shaft 30, the outside of the motor pinion shaft 30 is provided with a motor rotor 31, and the end of the motor rotor 31 away from the motor pinion shaft 30 is provided with a second motor bearing 32, the outside of the second motor bearing 32 is provided with a waterproof motor rear cover 35, the waterproof motor rear cover 35 and the reduction box cover 2 are provided with a stator coil assembly 33, the outer end of the stator coil assembly 33 is connected with a cable 34, and the stator coil assembly 33 is further provided with a coil screw 36, which extends outwardly through the waterproof motor rear cover 35.

[0033] Working principle: when the speed reducer is in use, the input oil seal 24 is always inside the first retaining ring 10 due to the wave spring 28 always exerting a pushing force on the input oil seal 24, so that the external contaminants cannot enter the inside of the first retaining ring 10 from the position of the input oil seal 24, and the output oil seal 4 is located on the other side of the vertical body 1, so that the input oil seal 24 and the output oil seal 4 always seal the vertical body 1, at the same time, the first retaining ring 10, the second retaining ring 16 and the third retaining ring 22 always seal the needle bearing 11, the second three-section tooth bearing 17 and the second two-section tooth bearing 23 respectively, so that the bearings are always in a sealed and isolated state with the inside of the vertical body 1 during rotation, further increasing the sealing performance.

[0034] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-sealability speed reducer characterized by, The utility model relates to a vertical body (1) is internally hollow cavity structure, is provided with the reduction gearbox cover (2) outside the cavity, the first O type ring (3) is arranged in the vertical body (1) middle with vertical body (1), and the power take-off oil seal (4) is arranged in one side of vertical body (1), the power take-off bearing (5) is arranged in one side inside vertical body (1), the power take-off bearing (5) is provided with the power take-off shaft key (6) and power take-off shaft (7) on, the power take-off shaft key (6) is arranged in the outside of power take-off shaft (7), the key (8) is also provided with on power take-off shaft (7), and the outer end of power take-off shaft (7) is connected with three section big gear (9), the first snap ring (10) is arranged in the outside of three section big gear (9), and the needle bearing (11) is arranged on the outside of first snap ring (10). The utility model relates to a vertical body (1) is internally hollow cavity structure, is provided with the reduction gearbox cover (2) outside the cavity, the first O type ring (3) is arranged in the vertical body (1) middle with vertical body (1), and the power take-off oil seal (4) is arranged in one side of vertical body (1), the power take-off bearing (5) is arranged in one side inside vertical body (1), the power take-off bearing (5) is provided with the power take-off shaft key (6) and power take-off shaft (7) on, the power take-off shaft key (6) is arranged in the outside of power take-off shaft (7), the key (8) is also provided with on power take-off shaft (7), and the outer end of power take-off shaft (7) is connected with three section big gear (9), the first snap ring (10) is arranged in the outside of three section big gear (9), and the needle bearing (11) is arranged on the outside of first snap ring (10).

2. A high-sealability speed reducer according to claim 1, characterized by The utility model relates to a vertical body (1) is internally hollow cavity structure, is provided with the reduction gearbox cover (2) outside the cavity, the first O type ring (3) is arranged in the vertical body (1) middle with vertical body (1), and the power take-off oil seal (4) is arranged in one side of vertical body (1), the power take-off bearing (5) is arranged in one side inside vertical body (1), the power take-off bearing (5) is provided with the power take-off shaft key (6) and power take-off shaft (7) on, the power take-off shaft key (6) is arranged in the outside of power take-off shaft (7), the key (8) is also provided with on power take-off shaft (7), and the outer end of power take-off shaft (7) is connected with three section big gear (9), the first snap ring (10) is arranged in the outside of three section big gear (9), and the needle bearing (11) is arranged on the outside of first snap ring (10).

3. A high containment speed reducer as set forth in claim 2 wherein, The utility model relates to a vertical body (1) is internally hollow cavity structure, is provided with the reduction gearbox cover (2) outside the cavity, the first O type ring (3) is arranged in the vertical body (1) middle with vertical body (1), and the power take-off oil seal (4) is arranged in one side of vertical body (1), the power take-off bearing (5) is arranged in one side inside vertical body (1), the power take-off bearing (5) is provided with the power take-off shaft key (6) and power take-off shaft (7) on, the power take-off shaft key (6) is arranged in the outside of power take-off shaft (7), the key (8) is also provided with on power take-off shaft (7), and the outer end of power take-off shaft (7) is connected with three section big gear (9), the first snap ring (10) is arranged in the outside of three section big gear (9), and the needle bearing (11) is arranged on the outside of first snap ring (10).

4. The high containment speed reducer of claim 1, wherein, ​ 5. A high containment speed reducer as set forth in claim 4 wherein, The inside of the first motor bearing (29) is provided with a motor gear shaft (30), the outside of the motor gear shaft (30) is provided with a motor rotating embryo (31), and the end of the motor rotating embryo (31) away from the motor gear shaft (30) is provided with a second motor bearing (32), the outside of the second motor bearing (32) is provided with a waterproof motor rear cover (35), a stator coil assembly (33) is arranged between the waterproof motor rear cover (35) and the reduction gearbox cover (2), and the outer end of the stator coil assembly (33) is connected with a cable (34), and the stator coil assembly (33) is also provided with a coil screw rod (36), which extends outwardly through the waterproof motor rear cover (35).

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