Multi-stage planetary reducer gear transmission device

Abstract

The utility model belongs to the technical field of speed reducers, and discloses a multistage planetary reducer gear transmission device which comprises a shell, an input shaft, an output shaft, a gear transmission mechanism, a lubricating assembly and a heat dissipation assembly, the lubricating assembly comprises a driving wheel, a fixing shaft, a driven wheel and a mounting shaft, and a piston pipe is vertically arranged in the shell; the bottom of the piston pipe communicates with a first connecting pipe and a second connecting pipe, the first connecting pipe is connected with a first one-way valve, the second connecting pipe is connected with a second one-way valve, a piston block is slidably arranged in the piston pipe, a connecting rod is arranged between the mounting shaft and the piston block, a plurality of oil outlet pipes are arranged in the shell, and the second one-way valve communicates with a conveying pipe. The conveying pipe communicates with the oil outlet pipes. When the input shaft rotates, the driving wheel, the driven wheel and the mounting shaft are driven to rotate, the connecting rod is driven to move, the piston block reciprocates up and down, lubricating oil is pushed into the second connecting pipe, the second one-way valve and the conveying pipe, and then the lubricating oil is sprayed out of the oil outlet pipe to the gear transmission mechanism.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a multi-stage planetary speed reducer gear transmission device. Background Technology

[0002] A multi-stage planetary gear reducer is a speed reduction device composed of multiple planetary gears, a sun gear, and an internal gear. Its working principle is to achieve speed reduction through the rotation of the planetary gears. When the sun gear rotates, the planetary gears rotate around the central axis of the sun gear, and the internal gears mounted on the planetary gears also rotate accordingly, thus achieving the speed reduction effect.

[0003] Currently, existing gear reducers typically use grease lubrication, which involves applying grease to the surfaces of gears and bearings to reduce friction and wear. However, gear reducers generate high temperatures during operation, causing the grease to gradually deteriorate. Deteriorated grease loses its original lubricating properties and fails to form an effective oil film on the friction surfaces of gears and bearings, leading to direct contact between the friction pairs and exacerbating wear. As wear intensifies, frictional resistance further increases, and the generated heat also increases. This not only accelerates the deterioration process of the grease but also speeds up its failure, creating a vicious cycle. Prolonged exposure to this condition significantly reduces the transmission efficiency of the gear reducer, increases noise and vibration, and ultimately severely impacts its service life and operational reliability. Utility Model Content

[0004] To solve the above problems, this utility model provides a multi-stage planetary reducer gear transmission device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a multi-stage planetary reducer gear transmission device, comprising a housing, an input shaft and an output shaft rotatably mounted on the housing, and a gear transmission mechanism disposed within the housing. A lubrication assembly is also disposed within the housing. The lubrication assembly includes a driving wheel fixedly sleeved on the shaft of the input shaft located within the housing. A fixed shaft is horizontally disposed within the housing, and a driven wheel is rotatably sleeved on the fixed shaft. The driving wheel and the driven wheel mesh. A mounting shaft is disposed near the edge of one side of the driven wheel. The bottom of the housing is vertically... The housing is equipped with a piston tube, the bottom of which is connected to a first connecting pipe and a second connecting pipe. A first one-way valve is connected to the first connecting pipe, and a second one-way valve is connected to the second connecting pipe. A piston block is vertically slidably arranged inside the piston tube. A connecting rod is arranged between the mounting shaft and the piston block. The upper end of the connecting rod is rotatably connected to the mounting shaft, and the lower end is rotatably connected to the top of the piston block. Several oil outlet pipes are arranged inside the housing. A delivery pipe is connected to the second one-way valve. The delivery pipe is connected to the several oil outlet pipes. A heat dissipation component is also provided on the housing to dissipate heat from the housing.

[0006] By adopting the above technical solution, a drive wheel, piston tube, connecting rod, oil outlet pipe, and heat dissipation assembly are provided, and the housing is filled with lubricating oil. When the input shaft rotates, it drives the drive wheel to rotate, which in turn drives the driven wheel to rotate. When the driven wheel rotates, the mounting shaft rotates around the fixed shaft axis, driving the connecting rod to move, causing the piston block to move up and down reciprocally. When the piston block rises, a negative pressure is formed, allowing lubricating oil to enter the piston tube through the first connecting pipe and the first one-way valve. Subsequently, the piston block descends, pushing the lubricating oil in the piston tube into the second connecting pipe, the second one-way valve, and the delivery pipe. Then, it is sprayed out from the oil outlet pipe onto the gear transmission mechanism, ensuring that the lubricating oil can form an effective oil film on the friction surface of the gear transmission mechanism. At the same time, the heat dissipation assembly dissipates heat from the housing, preventing the temperature of the gear transmission mechanism and lubricating oil inside the housing from becoming too high, extending the service life of the reducer and ensuring its operational reliability.

[0007] Furthermore, the heat dissipation assembly includes a mounting bracket disposed on the top of the housing, a rotating shaft rotatably mounted on the mounting bracket, a first synchronous pulley fixedly mounted on the upper end of the rotating shaft and a fan disposed on the lower end, a mounting base disposed inside the housing, a rotating shaft rotatably mounted on the mounting base, the upper end of the rotating shaft passing through the housing and disposed on a second synchronous pulley, and the lower end disposed on a first bevel gear, the second synchronous pulley and the first synchronous pulley being connected by a synchronous belt, and the input shaft being located on the second bevel gear on the shaft body inside the housing, the second bevel gear meshing with the first bevel gear.

[0008] By adopting the above technical solution, a mounting bracket, a first synchronous pulley, a rotating shaft, and a second synchronous pulley are set up. When the input shaft rotates, it drives the second bevel gear to rotate, thereby causing the first bevel gear, the rotating shaft, and the second synchronous pulley to rotate. Since the second synchronous pulley and the first synchronous pulley are connected by a synchronous belt, the rotation of the first synchronous pulley drives the rotating shaft and the fan to rotate, blowing air onto the housing and carrying away the heat of the housing.

[0009] Furthermore, a number of heat sinks are spaced apart on the top of the housing.

[0010] Furthermore, a heat dissipation pipe is provided on the top of the housing. The end of the heat dissipation pipe is connected to the delivery pipe, and the body of the pipe is connected to several oil outlet pipes. The heat dissipation pipe is in a continuous S-shape.

[0011] By adopting the above technical solution, the fan can dissipate heat from the heat sink while blowing air to cool the heat pipe, thereby reducing the temperature of the lubricating oil inside the heat pipe.

[0012] Furthermore, the heat pipe is connected to several heat sinks.

[0013] Furthermore, the mounting frame includes four support rods arranged in a rectangular array. The top of the four support rods is provided with a top plate, and an opening is provided in the middle of the top plate. An installation tube is provided on the top surface of the top plate at the opening. A fixed plate in the shape of a cross is provided on the top of the installation tube. The rotating shaft is rotatably mounted on the fixed plate and is arranged concentrically with the installation tube.

[0014] Furthermore, a filter head is provided on the first one-way valve.

[0015] By adopting the above technical solution, a filter head is installed on the first one-way valve to filter the lubricating oil entering the first connecting pipe, so as to prevent metal powder in the lubricating oil from entering the piston tube and oil outlet pipe through the first connecting pipe and clogging the oil outlet pipe.

[0016] In summary, this utility model has the following beneficial effects: It includes a drive wheel, piston tube, connecting rod, oil outlet pipe, and heat dissipation assembly, with the housing filled with lubricating oil. When the input shaft rotates, it drives the drive wheel to rotate, which in turn drives the driven wheel to rotate. When the driven wheel rotates, the mounting shaft rotates around the fixed shaft axis, driving the connecting rod to move, causing the piston block to move up and down reciprocally. When the piston block rises, a negative pressure is created, allowing lubricating oil to enter the piston tube through the first connecting pipe and the first one-way valve. Subsequently, the piston block descends, pushing the lubricating oil in the piston tube into the second connecting pipe, the second one-way valve, and the delivery pipe. The lubricating oil is then sprayed out from the oil outlet pipe onto the gear transmission mechanism, ensuring that the lubricating oil can form an effective oil film on the friction surface of the gear transmission mechanism. Simultaneously, the heat dissipation assembly dissipates heat from the housing, preventing the temperature of the gear transmission mechanism and lubricating oil inside the housing from becoming too high, extending the service life of the reducer and ensuring its operational reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the shell in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the drive wheel and piston tube in an embodiment of this utility model.

[0021] In the diagram: 10. Housing; 11. Input shaft; 12. Output shaft; 13. Gear transmission mechanism; 20. Lubrication assembly; 21. Driving wheel; 22. Fixed shaft; 23. Driven wheel; 24. Mounting shaft; 25. Piston tube; 251. First connecting pipe; 252. Second connecting pipe; 253. First check valve; 254. Second check valve; 255. Filter head; 26. Piston block; 27. Connecting rod; 28. Oil outlet pipe; 29. ​​Delivery pipe; 30. Heat dissipation assembly; 31. Mounting bracket; 32. Rotating shaft; 321. First synchronous pulley; 322. Fan; 33. Mounting base; 34. Rotating shaft; 341. Second synchronous pulley; 342. First bevel gear; 343. Second bevel gear; 344. Synchronous belt; 35. Heat sink; 36. Heat dissipation pipe; 311. Support rod; 312. Top plate; 313. Mounting pipe; 314. Fixing plate. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] like Figure 1-4 As shown in the illustration, this application discloses a multi-stage planetary reducer gear transmission device, including a housing 10, a lubrication assembly 20, and a heat dissipation assembly 30. An input shaft 11 and an output shaft 12 are rotatably mounted on the housing 10. A gear transmission mechanism 13 is disposed within the housing 10, with the input shaft 11 and output shaft 12 respectively connected to different gears in the gear transmission mechanism 13. The lubrication assembly 20 is disposed within the housing 10 and is used to lubricate the gear transmission mechanism 13. The heat dissipation assembly 30 is disposed on the housing 10, and the heat generated during the operation of the gear transmission mechanism 13 is transferred to the housing 10, whereby the heat dissipation assembly 30 dissipates heat from the housing 10.

[0024] Specifically, the lubrication assembly 20 includes a driving wheel 21, a fixed shaft 22, a driven wheel 23, and a piston tube 25. The driving wheel 21 is fixedly sleeved on the shaft of the input shaft 11 located inside the housing 10. The fixed shaft 22 is horizontally arranged inside the housing 10. The driven wheel 23 is rotatably sleeved on the fixed shaft 22, and the driving wheel 21 meshes with the driven wheel 23. This causes the driving wheel 21 to rotate when the input shaft 11 rotates, thereby causing the driven wheel 23 to rotate. A mounting shaft 24 is located near the edge of the driven wheel 23. A piston tube 25 is vertically positioned at the bottom of the housing 10. A first connecting pipe 251 and a second connecting pipe 252 are connected to the bottom of the piston tube 25. A first one-way valve 253 is connected to the first connecting pipe 251, allowing only external liquid to enter the piston tube 25. A second one-way valve 254 is connected to the second connecting pipe 252, allowing only liquid to flow out of the piston tube 25. A piston block 26 is vertically slidably positioned inside the piston tube 25. A connecting rod 27 is positioned between the mounting shaft 24 and the piston block 26, with its upper end rotatably connected to the mounting shaft 24 and its lower end rotatably connected to the top of the piston block 26. Several oil outlet pipes 28 are located inside the housing 10, facing the gears in the gear transmission mechanism 13. A delivery pipe 29 is connected to the second one-way valve 254, and the delivery pipe 29 is connected to the several oil outlet pipes 28. The housing 10 is filled with lubricating oil. When the driven wheel 23 rotates, the mounting shaft 24 rotates around the fixed shaft 22, driving the connecting rod 27 to move, causing the piston block 26 to move up and down reciprocally. When the piston block 26 rises, a negative pressure is formed in the piston tube 25, allowing the lubricating oil to enter the piston tube 25 through the first connecting pipe 251 and the first one-way valve 253. Subsequently, the piston block 26 descends, pushing the lubricating oil in the piston tube 25 into the second connecting pipe 252, the second one-way valve 254, and the delivery pipe 29, and then spraying it out from the oil outlet pipe 28 onto the gear transmission mechanism 13, ensuring that the lubricating oil can form an effective oil film on the friction surface of the gear transmission mechanism 13. At the same time, the heat dissipation component 30 dissipates heat from the housing 10, preventing the temperature of the gear transmission mechanism 13 and the lubricating oil inside the housing 10 from becoming too high, extending the service life of the reducer and ensuring its operational reliability.

[0025] As the gears in the gear transmission mechanism 13 are running, several gears will rub against each other and generate metal powder. The metal powder will eventually mix in the lubricating oil. A filter head 255 is provided on the first one-way valve 253 to filter the lubricating oil entering the first connecting pipe 251, so as to prevent the metal powder in the lubricating oil from entering the piston pipe 25 and the oil outlet pipe 28 through the first connecting pipe 251 and blocking the oil outlet pipe 28.

[0026] When set up, the heat dissipation assembly 30 includes a mounting bracket 31, a rotating shaft 32, and a fan 322. The mounting bracket 31 is set on the top of the housing 10. The rotating shaft 32 is vertically rotatably mounted on the mounting bracket 31. A first synchronous wheel 321 is fixedly sleeved on the upper end of the rotating shaft 32. The fan 322 is set on the lower end of the rotating shaft 32. When the fan 322 rotates, it blows air onto the housing 10 and carries away the heat of the housing 10. A mounting base 33 is provided inside the housing 10. A rotating shaft 34 is vertically rotatably mounted on the mounting base 33. The upper end of the rotating shaft 34 passes through the housing 10 and is provided with a second synchronous pulley 341, and the lower end is provided with a first bevel gear 342. The second synchronous pulley 341 and the first synchronous pulley 321 are connected by a synchronous belt 344. The second bevel gear 343 is located on the shaft of the input shaft 11 inside the housing 10. The second bevel gear 343 meshes with the first bevel gear 342. When the input shaft 11 rotates, it drives the second bevel gear 343 to rotate, thereby causing the first bevel gear 342, the rotating shaft 34, and the second synchronous pulley 341 to rotate. In turn, the rotation of the first synchronous pulley 321 drives the rotating shaft 32 and the fan 322 to rotate, blowing air onto the housing 10 and carrying away the heat of the housing 10. Several heat sinks 35 are provided at intervals on the top of the housing 10 to improve the heat dissipation effect of the housing 10.

[0027] The mounting bracket 31 includes support rods 311, mounting tubes 313, and fixing plates 314. The height of the support rods 311 is higher than the height of the heat sink 35. There are four support rods 311 arranged in a rectangular array. A top plate 312 is provided on the top of the four support rods 311. The upper end of the rotating shaft 34 passes through the housing 10 and then through the top plate 312. An opening is provided in the middle of the top plate 312. The mounting tube 313 is located on the top surface of the top plate 312 at the opening. The fixing plate 314 is located on the top of the mounting tube 313 and is cross-shaped. The rotating shaft 34 is rotatably mounted on the fixing plate 314 and is concentrically arranged with the mounting tube 313.

[0028] In a specific configuration, a heat dissipation pipe 36 is installed on the top of the housing 10. The end of the heat dissipation pipe 36 is connected to the delivery pipe 29, and the body of the pipe is connected to several oil outlet pipes 28. The heat dissipation pipe 36 is in a continuous S-shape, so that while the fan 322 blows air to dissipate heat from the heat sink 35, it can also dissipate heat from the heat dissipation pipe 36, thereby reducing the temperature of the lubricating oil inside the heat dissipation pipe 36. The heat dissipation pipe 36 is connected to several heat sinks 35 to enhance the heat dissipation effect of the heat dissipation pipe 36.

[0029] The operating principle of the multi-stage planetary reducer gear transmission device in this embodiment is as follows: The input shaft 11 rotates, driving the driving wheel 21 and the second bevel gear 343 to rotate. When the driven wheel 23 rotates, the mounting shaft 24 rotates around the axis of the fixed shaft 22, driving the connecting rod 27 to move, causing the piston block 26 to move up and down reciprocally. When the piston block 26 rises, a negative pressure is formed, causing lubricating oil to enter the piston tube 25 through the first connecting pipe 251 and the first one-way valve 253. Subsequently, the piston block 26 descends, pushing the lubricating oil in the piston tube 25 into the second connecting pipe 252, the second one-way valve 254, and the delivery pipe 29, and then spraying it out from the oil outlet pipe 28 onto the gear transmission mechanism 13. When the second bevel gear 343 rotates, it drives the first bevel gear 342, the rotating shaft 34, and the second synchronous wheel 341 to rotate, causing the first synchronous wheel 321 to rotate, driving the rotating shaft 32 and the fan 322 to rotate, blowing air to the housing 10 and the heat sink, carrying away the heat from the housing 10.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-stage planetary reducer gear transmission device, comprising a housing (10), an input shaft (11) and an output shaft (12) rotatably mounted on the housing (10), and a gear transmission mechanism (13) disposed within the housing (10), characterized in that: The housing (10) is further provided with a lubrication assembly (20). The lubrication assembly (20) includes a drive wheel (21) fixedly sleeved on the shaft of the input shaft (11) located inside the housing (10). A fixed shaft (22) is horizontally arranged inside the housing (10). A driven wheel (23) is rotatably sleeved on the fixed shaft (22). The drive wheel (21) meshes with the driven wheel (23). An installation shaft (24) is arranged near the edge of one side of the driven wheel (23). A piston tube (25) is vertically arranged at the bottom inside the housing (10). The bottom of the piston tube (25) is connected to a first connecting pipe (251) and a second connecting pipe (252). The first connecting pipe (251) is connected to... There is a first check valve (253), and a second check valve (254) is connected to the second connecting pipe (252). A piston block (26) is vertically slidably arranged inside the piston pipe (25). A connecting rod (27) is arranged between the mounting shaft (24) and the piston block (26). The upper end of the connecting rod (27) is rotatably connected to the mounting shaft (24), and the lower end is rotatably connected to the top of the piston block (26). A plurality of oil outlet pipes (28) are arranged inside the housing (10). A delivery pipe (29) is connected to the second check valve (254). The delivery pipe (29) is connected to the plurality of oil outlet pipes (28). A heat dissipation assembly (30) for dissipating heat from the housing (10) is also provided on the housing (10).

2. The multi-stage planetary reducer gear transmission device according to claim 1, characterized in that: The heat dissipation assembly (30) includes a mounting bracket (31) disposed on the top of the housing (10). A rotating shaft (32) is vertically rotatably disposed on the mounting bracket (31). A first synchronous pulley (321) is fixedly sleeved on the upper end of the rotating shaft (32), and a fan (322) is disposed on the lower end. A mounting base (33) is disposed inside the housing (10). A rotating shaft (34) is vertically rotatably disposed on the mounting base (33). The upper end of the rotating shaft (34) passes through the housing (10) and is disposed on a second synchronous pulley (341). A first bevel gear (342) is disposed on the lower end. The second synchronous pulley (341) and the first synchronous pulley (321) are connected by a synchronous belt (344). The input shaft (11) is located on the second bevel gear (343) on the shaft inside the housing (10). The second bevel gear (343) meshes with the first bevel gear (342).

3. The multi-stage planetary reducer gear transmission device according to claim 2, characterized in that: The top of the housing (10) is provided with a number of heat sinks (35) spaced apart.

4. The multi-stage planetary reducer gear transmission device according to claim 3, characterized in that: The top of the housing (10) is provided with a heat dissipation pipe (36), the end of the heat dissipation pipe (36) is connected to the delivery pipe (29), and the pipe body is connected to several oil outlet pipes (28). The heat dissipation pipe (36) is in a continuous S-shape.

5. The multi-stage planetary reducer gear transmission device according to claim 4, characterized in that: The heat pipe (36) is connected to several heat sinks (35).

6. The multi-stage planetary reducer gear transmission device according to claim 5, characterized in that: The mounting bracket (31) includes four support rods (311) arranged in a rectangular array. The top of the four support rods (311) is provided with a top plate (312). An opening is provided in the middle of the top plate (312). An installation tube (313) is provided on the top surface of the top plate (312) at the opening. A fixed plate (314) in the shape of a cross is provided on the top of the installation tube (313). The rotating shaft (34) is rotatably mounted on the fixed plate (314) and is concentrically arranged with the installation tube (313).

7. The multi-stage planetary reducer gear transmission device according to claim 1, characterized in that: The first check valve (253) is equipped with a filter head (255).

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