Noise reduction type planetary gear speed reduction structure

Abstract

The utility model discloses a noise reduction type planetary gear speed reduction structure which comprises a speed reduction box, end plates arranged at the two ends of the speed reduction box and a motor arranged on the outer side of one end plate, a sun gear, a gear ring and a planetary gear are arranged on the inner side of the speed reduction box, and the sun gear is located in the center of the gear ring and connected with the motor through an input shaft. The planetary gear is located between the sun gear and the gear ring and meshed with the sun gear and the gear ring, a planet carrier is arranged at one end of the planetary gear, and an output shaft extending to the outer side of the end plate is arranged at the end, away from the planetary gear, of the planet carrier. The device further comprises a continuous lubricating mechanism. According to the noise reduction type planetary gear speed reduction structure, through mutual cooperation of the first bevel gear, the second bevel gear, the rotating shaft, the cam, the connecting rod, the push-pull rod, the oil injection box, the oil storage box, the spray pipe, the push plate and the leakage opening, internal gears and the like can be continuously lubricated during work, the noise reduction type planetary gear speed reduction structure is in linkage with the output shaft, and the collision noise between the gears can be reduced during use.

Description

Technical Field

[0001] The utility model relates to the field of planetary gear reduction boxes, in particular to a noise-reducing planetary gear reduction structure. Background Art

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

[0003] At present, planetary gear reducers are widely used due to their high precision and strong stability. Planetary gear reducers are generally composed of a housing, a motor, a sun gear, a gear ring, a planetary gear, a planetary carrier, an input shaft, an output shaft, etc. Due to the large number of gears, noise is easily generated during use. The existing technology generally reduces noise by setting a sound insulation board or adding lubricating oil. The former has a poor noise reduction effect and affects heat dissipation, and the latter cannot continuously add lubricating oil during use, which is inconvenient to use.

[0004] Therefore, it is necessary to propose a noise-reducing planetary gear reduction structure to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a noise-reducing planetary gear reduction structure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A noise reduction type planetary gear reduction structure, comprising a reduction box, end plates arranged at both ends of the reduction box, and a motor arranged outside one of the end plates, a sun gear, a ring gear, and planetary gears are arranged inside the reduction box, the sun gear is located at the center of the ring gear and is connected to the motor through an input shaft, the planetary gears are located between the sun gear and the ring gear and mesh with the sun gear and the ring gear, a planet carrier is arranged at one end of the planetary gear, and an output shaft extending to the outside of the end plate is arranged at the end of the planet carrier away from the planetary gear;

[0008] It also includes a continuous lubrication mechanism, which includes a first bevel gear arranged at the outer end of the output shaft, the upper end of the first bevel gear is meshed with a second bevel gear, the upper end of the second bevel gear is provided with a rotating shaft, the upper end of the rotating shaft is provided with a cam, one end of the cam is movably provided with a connecting rod, the top of the reduction gear box is provided with an oil filling box, the top of the oil filling box is provided with an oil storage box, the inner side of the oil filling box is movably provided with a push plate, one side of the push plate is provided with a push-pull rod, and the lower end of one side of the oil filling box is provided with a nozzle.

[0009] Preferably, a shell is provided at one end of the reduction box close to the output shaft, the rotating shaft is rotatably connected to the upper end of the shell, and the cam is located at the top of the shell; the output shaft extends to the outside of the shell.

[0010] Preferably, one end of the push-pull rod away from the push plate extends to the outside of the oil filling box and is movably connected to one end of the connecting rod away from the cam, so that the rotation of the cam drives the push-pull rod to move back and forth through the connecting rod.

[0011] Preferably, the nozzle is connected to the oil filling box, and one end of the nozzle away from the oil filling box extends to the inner side of the reduction gearbox and corresponds to the meshing position of the ring gear and the planetary gear; the oil filling box is connected to the oil storage box through a leak.

[0012] Preferably, it also includes a heat dissipation structure, which includes fan blades arranged on the input shaft, exhaust ports are evenly arranged on the periphery of the end plate close to the motor, through holes are evenly arranged on the periphery of the end plate close to the output shaft, and air inlets are evenly arranged on the periphery of the end of the shell.

[0013] Preferably, a filter is provided on the inner side of the air inlet.

[0014] Preferably, a baffle is provided on the inner side of the exhaust port, and pins are provided on both sides of the upper end of the baffle, and the baffle is rotatably connected to the inner side of the exhaust port through the pins.

[0015] Preferably, an air guide cover corresponding to the motor is arranged on the outer periphery of the end plate close to the motor, and the air guide cover is conical, and the length of the air guide cover is smaller than the length of the motor.

[0016] Beneficial Effects

[0017] Compared with the prior art, the utility model provides a noise-reducing planetary gear reduction structure, which has the following beneficial effects:

[0018] 1. The noise-reducing planetary gear reduction structure can continuously lubricate the gear ring, planetary gear, sun gear, etc. during operation through the cooperation of the first bevel gear, the second bevel gear, the rotating shaft, the cam, the connecting rod, the push-pull rod, the oil filling box, the oil storage box, the nozzle, the push plate, and the leakage port. It is linked with the output shaft to reduce the collision noise between the gears during use, increase the service life of the gears, and isolate and absorb the sound of the lubricating oil, thereby reducing noise to the greatest extent from the source.

[0019] 2. The noise-reducing planetary gear reduction structure is linked to the input shaft through the fan blades, and the air inlet, exhaust port and through-hole settings can be used for continuous ventilation and heat dissipation during operation, thereby increasing the service life. The filter can prevent dust from entering, and the baffle is movably connected to the inner side of the exhaust port through a pin shaft. It is blown open by air pressure when in use, and automatically falls down to cover the exhaust port when not in use, thereby preventing dust from entering when not in use. The wind guide cover can guide the exhaust gas so that the gas passes through the outside of the motor, thereby dissipating heat for the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model in which the housing and the reduction box are separated;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model after the reduction box is removed;

[0023] Figure 4 This utility model Figure 3 A structural diagram from another perspective of the basis;

[0024] Figure 5 It is a schematic cross-sectional structure diagram of the oil filling box and the oil storage box of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the baffle of the utility model.

[0026] In the figure: 1. reduction box; 2. motor; 3. end plate; 4. sun gear; 5. ring gear; 6. planetary gear; 7. planetary carrier; 8. output shaft; 9. input shaft; 10. housing; 11. cam; 12. oil filling box; 13. oil storage box; 14. first bevel gear; 15. second bevel gear; 16. leakage port; 17. rotating shaft; 18. connecting rod; 19. push-pull rod; 20. nozzle; 21. push plate; 22. air inlet; 23. filter; 24. through hole; 25. exhaust port; 26. baffle; 27. air guide cover; 28. fan blade; 29. ​​pin shaft. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] Example

[0029] like Figure 1-Figure 6As shown, in this embodiment, a noise reduction type planetary gear reduction structure includes a reduction box 1, end plates 3 arranged at both ends of the reduction box 1, and a motor 2 arranged on the outside of one of the end plates 3. A sun gear 4, a ring gear 5, and a planetary gear 6 are arranged on the inner side of the reduction box 1. The sun gear 4 is located at the center of the ring gear 5 and is connected to the motor 2 through an input shaft 9. The planetary gear 6 is located between the sun gear 4 and the ring gear 5 and meshes with the sun gear 4 and the ring gear 5. A planet carrier 7 is arranged at one end of the planetary gear 6, and an output shaft 8 extending to the outside of the end plate 3 is arranged at the end of the planetary carrier 7 away from the planetary gear 6.

[0030] Furthermore, it also includes a continuous lubrication mechanism, which includes a first bevel gear 14 arranged at the outer end of the output shaft 8, the upper end of the first bevel gear 14 is meshed with a second bevel gear 15, the upper end of the second bevel gear 15 is provided with a rotating shaft 17, the upper end of the rotating shaft 17 is provided with a cam 11, the end of the reduction box 1 close to the output shaft 8 is provided with a housing 10, the rotating shaft 17 is rotatably connected to the upper end of the housing 10, the cam 11 is located at the top of the housing 10, the output shaft 8 extends to the outside of the housing 10, one end of the cam 11 is movably provided with a connecting rod 18, the top of the reduction box 1 is provided with an oil filling box 12, and the top of the oil filling box 12 is provided with The oil storage box 13, the oil filling box 12 is connected with the oil storage box 13 through the leak 16, the inner side of the oil filling box 12 is movably provided with a push plate 21, and one side of the push plate 21 is provided with a push-pull rod 19, and one end of the push-pull rod 19 away from the push plate 21 extends to the outer side of the oil filling box 12 and is movably connected with one end of the connecting rod 18 away from the cam 11, so that the cam 11 rotates through the connecting rod 18 to drive the push-pull rod 19 to move back and forth, and a nozzle 20 is provided at the lower end of one side of the oil filling box 12, and the nozzle 20 is connected with the oil filling box 12, and one end of the nozzle 20 away from the oil filling box 12 extends to the inner side of the reduction box 1 and corresponds to the meshing position of the ring gear 5 and the planetary gear 6;

[0031] As an embodiment, it also includes a heat dissipation structure, which includes fan blades 28 arranged on the input shaft 9, exhaust ports 25 are evenly arranged on the periphery of the end plate 3 close to the motor 2, baffles 26 are arranged on the inner side of the exhaust port 25, pins 29 are arranged on both sides of the upper end of the baffle 26, and the baffle 26 is rotatably connected to the inner side of the exhaust port 25 through the pins 29, through holes 24 are evenly arranged on the periphery of the end plate 3 close to the output shaft 8, air inlets 22 are evenly arranged on the periphery of the end of the shell 10, and a filter 23 is arranged on the inner side of the air inlet 22.

[0032] Furthermore, an air guide cover 27 corresponding to the motor 2 is provided on the outer periphery of the end plate 3 close to the motor 2 , and the air guide cover 27 is conical, and the length of the air guide cover 27 is less than the length of the motor 2 .

[0033] Working principle: when in use, the lubricating oil is stored in the oil storage box 13. When working, the motor 2 drives the sun gear 4 to rotate through the input shaft 9, and the sun gear 4 drives the planetary gear 6 to rotate. Under the action of the ring gear 5, the planetary gear 6 revolves around the sun gear 4, and then the planetary carrier 7 rotates at a speed less than the input shaft 9, and then the output shaft 8 rotates and outputs. During this period, the output shaft 8 drives the second bevel gear 15 to rotate through the first bevel gear 14, and the second bevel gear 15 drives the cam 11 to rotate through the rotating shaft 17, and then the connecting rod 18 drives the push-pull rod 19 to move back and forth, and the push-pull rod 19 drives the push plate 21 to move back and forth on the inner side of the oil filling box 12. The lubricating oil in the oil storage box 13 enters the oil filling box 12 through the leakage 16, so it is continuously pushed into the nozzle 20 by the push plate 21, and lubricates the internal gears through the nozzle 20, thereby achieving noise reduction;

[0034] In addition, during operation, the input shaft 9 drives the fan blades 28 to rotate, forming a negative pressure inside, and the external gas enters the shell 10 through the air inlet 22, and then enters the reduction box 1 through the through hole 24. After that, the baffle 26 is blown open, and the gas is discharged through the exhaust port 25, thereby achieving ventilation and heat dissipation. The exhausted gas passes through the motor 2 under the action of the wind guide cover 27, and the heat dissipation of the motor 2 is achieved by the way. After the end, the baffle 26 falls down automatically to cover the exhaust port 25.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A noise reduction type planetary gear reduction structure, comprising a reduction box (1), end plates (3) arranged at both ends of the reduction box (1), and a motor (2) arranged outside one of the end plates (3); a sun gear (4), a ring gear (5), and a planetary gear (6) are arranged inside the reduction box (1); the sun gear (4) is located at the center of the ring gear (5) and is connected to the motor (2) via an input shaft (9); the planetary gear (6) is located between the sun gear (4) and the ring gear (5) and is meshed with the sun gear (4) and the ring gear (5); a planetary carrier (7) is arranged at one end of the planetary gear (6); and an output shaft (8) extending to the outside of the end plate (3) is arranged at the end of the planetary carrier (7) away from the planetary gear (6); Features: The invention also comprises a continuous lubrication mechanism, which comprises a first bevel gear (14) arranged at the outer end of the output shaft (8), the upper end of the first bevel gear (14) is meshed with a second bevel gear (15), the upper end of the second bevel gear (15) is provided with a rotating shaft (17), the upper end of the rotating shaft (17) is provided with a cam (11), one end of the cam (11) is movably provided with a connecting rod (18), the top of the reduction gear box (1) is provided with an oil filling box (12), the top of the oil filling box (12) is provided with an oil storage box (13), the inner side of the oil filling box (12) is movably provided with a push plate (21), one side of the push plate (21) is provided with a push-pull rod (19), and the lower end of one side of the oil filling box (12) is provided with a nozzle (20).

2. A noise reduction planetary gear reduction structure according to claim 1, characterized in that: A housing (10) is provided at one end of the reduction box (1) close to the output shaft (8); the rotating shaft (17) is rotatably connected to the upper end of the housing (10); the cam (11) is located at the top of the housing (10); and the output shaft (8) extends to the outside of the housing (10).

3. A noise reduction planetary gear reduction structure according to claim 2, characterized in that: The end of the push-pull rod (19) away from the push plate (21) extends to the outside of the oil filling box (12) and is movably connected to the end of the connecting rod (18) away from the cam (11), so that the cam (11) rotates through the connecting rod (18) to drive the push-pull rod (19) to move back and forth.

4. A noise reduction planetary gear reduction structure according to claim 3, characterized in that: The nozzle (20) is connected to the oil filling box (12), and one end of the nozzle (20) away from the oil filling box (12) extends to the inner side of the reduction box (1) and corresponds to the meshing position of the ring gear (5) and the planetary gear (6); the oil filling box (12) is connected to the oil storage box (13) through the leakage port (16).

5. The noise reduction planetary gear reduction structure according to claim 2, characterized in that: The invention also comprises a heat dissipation structure, wherein the heat dissipation structure comprises a fan blade (28) arranged on the input shaft (9), exhaust ports (25) are evenly arranged on the periphery of the end plate (3) close to the motor (2), through holes (24) are evenly arranged on the periphery of the end plate (3) close to the output shaft (8), and air inlets (22) are evenly arranged on the periphery of the end of the housing (10).

6. A noise reduction planetary gear reduction structure according to claim 5, characterized in that: A filter screen (23) is arranged inside the air inlet (22).

7. The noise reduction planetary gear reduction structure according to claim 5, characterized in that: A baffle (26) is arranged on the inner side of the exhaust port (25), and pin shafts (29) are arranged on both sides of the upper end of the baffle (26). The baffle (26) is rotatably connected to the inner side of the exhaust port (25) via the pin shafts (29).

8. The noise reduction planetary gear reduction structure according to claim 5, characterized in that: An air guide cover (27) corresponding to the motor (2) is arranged on the outer periphery of the end plate (3) close to the motor (2), and the air guide cover (27) is conical, and the length of the air guide cover (27) is less than the length of the motor (2).

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