CN115163808B

CN115163808B - Water-cooling planetary reducer

Info

Publication number: CN115163808B
Application number: CN202211081652.3A
Authority: CN
Inventors: 杨超; 于海生; 王晨彬
Original assignee: Changzhou Mandolin Precision Machinery Technology Co ltd
Current assignee: Changzhou Mandolin Precision Machinery Technology Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-11-22
Anticipated expiration: 2042-09-06
Also published as: CN115163808A

Abstract

The invention relates to the technical field of planetary speed reducers, in particular to a water-cooling planetary speed reducer, which comprises: planetary reducer, pressure reduction diffuser and supercharger and be used for communicateing the honeycomb duct of pressure reduction diffuser and supercharger, pressure reduction diffuser and supercharger fixed mounting respectively in planetary reducer's the left and right sides, planetary reducer includes reduction gear machine case, end cover, input key shaft and output shaft dish, and one side fixed mounting of end cover has the outer ring gear that is located reduction gear machine incasement side. According to the invention, the input end and the output end of the planetary reducer are respectively provided with the pressure reduction diffuser and the mechanical supercharger, the rotor is driven to do low-speed eccentric motion relative to the fixed scroll blades by utilizing the large torque and the low rotating speed of the output end, so that the pressure and the temperature of oil liquid and mixed gas are increased, the heat is dissipated, the oil liquid and working components in the planetary reducer are quickly reduced in pressure and temperature through the high-speed work of the pressure reduction diffuser, and then the oil liquid and the working components are quickly and efficiently cooled, and the cooling effect is improved.

Description

Water-cooling planetary reducer

Technical Field

The invention relates to the technical field of planetary speed reducers, in particular to a water-cooling planetary speed reducer.

Background

The planetary gear reducer has the advantages of small volume, high transmission efficiency, wide reduction range, high precision and the like, is widely applied to transmission systems such as servo motors, stepping motors, direct current motors and the like, and is mainly used for reducing the rotating speed, increasing the torque and reducing the rotational inertia ratio of a load to the motor on the premise of ensuring the precision transmission. The rated input rotation speed of the planetary reducer can reach 18000rpm (the larger the reducer is, the smaller the rated input rotation speed is), the working temperature is about-25 ℃ to 100 ℃, and the working temperature can be changed by changing the lubricating grease. The temperature of the planetary reducer can be gradually increased in the working process, so that the viscosity of grease is reduced, an oil film is thinned, friction heating is generated between a disc and a tile, the surface of the tile is burnt, and larger loss is caused.

At present, the planet speed reducer is cooled by the following methods: 1, adding enough lubricating oil according to the lubricating oil or lubricating grease grade recommended by the specification and the specified oil level; 2, normal work of the lubricating oil pump and smooth oil circuit are ensured; 3, replacing a tumbler bearing of the robot speed reducer, and strengthening ventilation, such as cooling by adopting a large exhaust fan and reducing the ambient temperature; the former two ways can increase the use cost, and the overheating problem cannot be avoided; the latter method needs to continuously radiate the environment, has high cost and poor applicability, and the above various methods cannot realize the rapid and efficient cooling of the planetary reducer, and have certain defects. In view of the above, the present invention is to provide a water-cooled planetary reduction gear, which is improved to solve the problems of the prior art, and to achieve the purpose of solving the problems and improving the practical value by the technology.

Disclosure of Invention

The present invention has been made to solve one of the technical problems occurring in the prior art or the related art.

Therefore, the technical scheme adopted by the invention is as follows: water-cooled planetary reducer includes: the planetary speed reducer comprises a speed reducer case, an end cover, an input key shaft and an output shaft disc, wherein an outer gear ring positioned on the inner side of the speed reducer case is fixedly arranged on one side of the end cover, and a flange rotating disc penetrating to the outer side of the speed reducer case is arranged on one side of the output shaft disc;

the mechanical supercharger comprises a fixed partition disc, a sealing guide ring, a heat dissipation disc, an output shaft lever, a rotor and an eccentric guide disc, wherein a key tooth sleeve is rotatably installed on one side of the heat dissipation disc, the output shaft lever is fixedly installed on one side of the key tooth sleeve, the other end of the output shaft lever penetrates through the fixed partition disc and is fixedly connected with the surface of an output shaft disc, the rotor comprises a rotary disc and a movable vortex blade fixed on one side of the rotary disc, a fixed vortex blade is fixedly installed on one side of the heat dissipation disc, the rotary disc is rotatably sleeved on the inner side of the eccentric guide disc and is non-concentrically arranged with the eccentric guide disc, a shaft passing hole sleeved on the outer side of the fixed vortex blade is formed in the surface of the rotary disc, a plurality of linkage rods fixedly connected with the surface of the eccentric guide disc are arranged on the inner side of the fixed partition disc in a rotating mode and on the periphery of the flange rotary disc, and a liquid guide ring cover sleeved on the outer side of the key tooth sleeve is fixedly installed on one side of the heat dissipation disc;

the pressure reducing diffuser comprises a pressure reducing box, a cold guide disc, an impeller and a shaft rod fixedly sleeved on the inner side of the impeller, the impeller is rotatably installed on the inner sides of the pressure reducing box and the cold guide disc, and one end of the shaft rod is fixedly connected with the end part of the input key shaft.

The present invention in a preferred example may be further configured to: the surface of the pressure reduction box is provided with a liquid discharge pipe and a liquid inlet pipe which are symmetrical about the origin of the circle center of the pressure reduction box, one end of the liquid discharge pipe is communicated with the inner side of the planetary speed reducer, the other end of the liquid inlet pipe is communicated with the inner side of the liquid guide ring cover through a guide pipe, the surface of the sealing guide ring is provided with an inlet communicated with the inner cavity of the planetary speed reducer, and cooling oil is filled in the planetary speed reducer, the pressure reduction diffuser and the inner side of the mechanical supercharger.

The present invention in a preferred example may be further configured to: the key tooth sleeve is rotatably sleeved on one side of the liquid guide ring cover and is positioned on the same axis with the output shaft rod, the eccentric guide disc, the output shaft disc and the input key shaft, the diameter of the through shaft hole is larger than that of the output shaft rod, and the fixed vortex blade and the movable vortex blade are the same in structure size.

The present invention in a preferred example may be further configured to: the surface of the output shaft disc is rotatably provided with a plurality of planetary transmission teeth, the outer sides of the planetary transmission teeth are in transmission engagement with the inner side of the outer gear ring, and the input key shaft is provided with a transmission tooth key in transmission engagement with the surface of the planetary transmission teeth.

The present invention in a preferred example may be further configured to: the heat dissipation disc and the cold guide disc are of metal plate-shaped structures, a plurality of heat dissipation fins distributed densely are arranged on the surfaces of the heat dissipation disc and the cold guide disc, the partition disc and the pressure reduction box are made of nonmetal heat insulation materials, one side of the cold guide disc is fixedly adhered to the surface of the end cover, and the heat dissipation fins on the surface of the cold guide disc are embedded in the surface of the end cover.

The present invention in a preferred example may be further configured to: the quantity of gangbar is a plurality of and is the circumference and distributes in the periphery of output shaft dish, the other end of gangbar is connected with the perpendicular surface of eccentric guide disc, the outside and the inboard of eccentric guide disc all are equipped with a plurality of balls, eccentric guide disc arranges and rotates with the output shaft dish with one heart and installs in one side of fixed disk, the periphery and the inboard ball looks butt of eccentric guide disc of carousel.

The invention in a preferred example may be further configured to: decide the vortex leaf and move the vortex leaf and all be located the inboard of sealed guide ring, decide the vortex leaf and move the surface of vortex leaf and all be equipped with sealed the pad, decide the sealed pad of vortex leaf one side and the surperficial slip butt of carousel, move the sealed pad of vortex leaf one side and the inboard slip butt of heat dissipation dish.

The present invention in a preferred example may be further configured to: the surface of honeycomb duct is equipped with the check valve, the pipe diameter of fluid-discharge tube is greater than the pipe diameter of feed liquor pipe, the impeller is turbine structure.

The beneficial effects obtained by the invention are as follows:

1. according to the invention, the input end and the output end of the planetary reducer are respectively provided with the pressure reduction diffuser and the mechanical supercharger, the output end is used for driving the rotor to do low-speed eccentric motion relative to the fixed scroll blade, the output end is used for boosting and heating the oil liquid and the mixed gas, the heat is dissipated, the high-speed operation of the pressure reduction diffuser is used for rapidly reducing the pressure and the temperature, the planetary reducer is introduced, the oil liquid and the working assembly in the planetary reducer are rapidly and efficiently cooled, and the cooling effect is improved.

2. According to the invention, by adopting a mechanical pressurization mode, the mechanical supercharger is utilized to simulate the scroll compressor to pressurize oil-liquid mixed gas in the planetary reducer and realize rapid cooling of oil after the pressure of the oil is reduced by the pressure reduction diffuser, so that the active cooling is realized by adopting an inverse Carnot circulation mode, and the cooling effect is more obvious compared with the traditional passive heat dissipation or air cooling mode.

3. In the invention, the rotation speed ratio at two ends of the planetary reducer is adopted to independently drive the pressure reduction diffuser and the mechanical supercharger, and the pressure reduction diffuser and the mechanical supercharger have a certain rotation speed difference, so that the compression ratio is larger, and the pressure increase and decrease effect is more obvious.

Drawings

FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;

FIG. 2 is a schematic view of a pressure reducing diffuser and supercharger of one embodiment of the present invention;

FIG. 3 is an exploded view of a planetary reducer according to an embodiment of the present invention;

FIG. 4 is an exploded view of a pressure reducing diffuser according to one embodiment of the present invention;

FIG. 5 is an exploded view of a supercharger according to an embodiment of the present invention;

FIG. 6 is a schematic view of a rotor mounting structure according to an embodiment of the present invention;

FIG. 7 is a schematic view of the rotor and non-orbiting scroll configuration of one embodiment of the present invention.

Reference numerals:

100. a planetary reducer; 110. a reduction case; 120. an end cap; 130. an input key shaft; 140. an output shaft disc; 121. an outer ring gear; 141. a flange turntable; 142. a planetary gear; 143. a linkage rod;

200. a pressure reducing diffuser; 210. a blood pressure reduction box; 220. a cold guiding plate; 230. an impeller; 240. a shaft lever; 211. a liquid discharge pipe; 212. a liquid inlet pipe;

300. a mechanical supercharger; 310. a fixed partition plate; 320. a seal guide ring; 330. a heat dissipation plate; 340. an output shaft; 350. a rotor; 360. an eccentric guide disc; 370. a fixed vortex blade; 321. an inlet port; 331. a key gear sleeve; 332. a liquid guide ring cover; 351. a turntable; 352. a movable vortex blade; 353. a shaft passing hole;

400. a flow guide pipe; 410. a one-way valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

The following describes a water-cooled planetary reducer provided by some embodiments of the present invention with reference to the drawings.

Referring to fig. 1 to 7, the water-cooled planetary reducer according to the present invention includes: the planetary speed reducer 100, the pressure reducing diffuser 200, the supercharger 300 and the guide pipe 400 for communicating the pressure reducing diffuser 200 and the supercharger 300, wherein the pressure reducing diffuser 200 and the supercharger 300 are respectively and fixedly installed at the left side and the right side of the planetary speed reducer 100, the planetary speed reducer 100 comprises a speed reducing case 110, an end cover 120, an input key shaft 130 and an output shaft disc 140, an outer gear ring 121 positioned at the inner side of the speed reducing case 110 is fixedly installed at one side of the end cover 120, and a flange rotating disc 141 penetrating to the outer side of the speed reducing case 110 is arranged at one side of the output shaft disc 140;

the mechanical supercharger 300 comprises a fixed partition disc 310, a sealing guide ring 320, a heat dissipation disc 330, an output shaft lever 340, a rotor 350 and an eccentric guide disc 360, wherein a key tooth sleeve 331 is rotatably installed on one side of the heat dissipation disc 330, the output shaft lever 340 is fixedly installed on one side of the key tooth sleeve 331, the other end of the output shaft lever 340 penetrates through the fixed partition disc 310 and is fixedly connected with the surface of an output shaft disc 140, the rotor 350 comprises a rotary disc 351 and a movable vortex blade 352 fixed on one side of the rotary disc 351, a fixed vortex blade 370 is fixedly installed on one side of the heat dissipation disc 330, the rotary disc 351 is rotatably sleeved on the inner side of the eccentric guide disc 360 and is non-concentrically arranged with the eccentric guide disc 360, a through shaft hole 353 sleeved on the outer side of the fixed vortex blade 370 is formed in the surface of the rotary disc 351, a flange rotary disc 141 is rotatably installed on the inner side of the fixed partition disc 310 and is provided with a plurality of linkage rods 143 fixedly connected with the surface of the eccentric guide disc 360 at the periphery, and a liquid guide ring cover 332 sleeved on the outer side of the key tooth sleeve is fixedly installed on one side of the heat dissipation disc 330; the pressure reducing diffuser 200 includes a pressure reducing box 210, a cold guiding disk 220, an impeller 230, and a shaft 240 fixedly secured to an inner side of the impeller 230, the impeller 230 is rotatably mounted to inner sides of the pressure reducing box 210 and the cold guiding disk 220, and one end of the shaft 240 is fixedly connected to an end of the input key shaft 130.

In this embodiment, the surface of the depressurization box 210 is provided with a liquid discharge pipe 211 and a liquid inlet pipe 212 which are symmetrical with respect to the origin of the center of the depressurization box 210, one end of the liquid discharge pipe 211 is communicated with the inside of the planetary reducer 100, the other end of the liquid inlet pipe 212 is communicated with the inside of the liquid guide ring cover 332 through the liquid guide pipe 400, the surface of the seal guide ring 320 is provided with an inlet 321 communicated with the inner cavity of the planetary reducer 100, and the insides of the planetary reducer 100, the depressurization diffuser 200 and the mechanical supercharger 300 are filled with cooling oil.

Specifically, the pressurization and depressurization of liquid are performed through the circulation flow of the cooling oil-liquid mixed gas in the planetary reducer 100, the depressurization diffuser 200 and the mechanical supercharger 300, the mixed gas of oil and gas in the planetary reducer 100 is introduced through the introduction port 321 during the operation of the mechanical supercharger 300, the pressurization of the oil-liquid mixed gas is performed, the heat of the pressurized oil-liquid mixed gas is dissipated through the heat dissipation disc 330, the oil-liquid mixed gas enters the depressurization diffuser 200 through the liquid guide ring cover 332 and the guide pipe 400 through conduction and is depressurized, and then enters the planetary reducer 100 again through the liquid discharge pipe 211, the circulation flow of the oil-gas mixed liquid is realized, and the temperature of the oil is reduced by depressurization to perform cooling treatment on the planetary reducer 100.

In this embodiment, the spline sleeve 331 is rotatably sleeved on one side of the liquid guiding ring cover 332 and is located on the same axis with the output shaft 340, the eccentric guide disc 360, the output shaft disc 140 and the input spline shaft 130, the diameter of the through-shaft hole 353 is larger than that of the output shaft 340, and the fixed scroll blades 370 and the movable scroll blades 352 have the same structure size.

Specifically, the driving force of the output shaft disk 140 is directly transmitted to the key gear sleeve 331 for output by using the connection of the key gear sleeve 331, the output shaft rod 340 and the output shaft disk 140, one end of the input key shaft 130 is connected with an external motor structure, the speed reduction is realized by the planetary transmission between the input key shaft 130 and the output shaft disk 140, and the mechanical supercharger 300 is additionally arranged at the low-speed output end of the planetary speed reducer 100, so that the input of large-torque kinetic energy is facilitated to compress liquid flow.

In this embodiment, the output shaft disk 140 is provided with a plurality of planetary gears 142 rotatably mounted on the surface thereof, the outer sides of the planetary gears 142 are in driving engagement with the inner side of the outer ring gear 121, and the input key shaft 130 is provided with a driving splines which are in driving engagement with the surfaces of the planetary gears 142.

Specifically, the basic structure of the planetary speed reducer is formed by the transmission combination among the input key shaft 130, the output shaft disc 140 and the planetary transmission teeth 142, so that the rotation speed is reduced, the torque is increased, the rotational inertia ratio of the load/motor is reduced, and the rotation speed difference is formed between the rotor 350 and the impeller 230, thereby improving the compression ratio of the supercharger 300, the pressure reduction effect of the pressure reduction diffuser 200, and the temperature reduction effect of the liquid flow.

In this embodiment, the heat dissipation plate 330 and the cold guiding plate 220 are metal plate-shaped structures, and the surfaces thereof are provided with a plurality of heat dissipation fins distributed densely, the partition plate 310 and the decompression box 210 are non-metal heat insulation members, one side of the cold guiding plate 220 is adhered and fixed to the surface of the end cap 120, and the heat dissipation fins on the surface of the cold guiding plate 220 are embedded and mounted on the surface of the end cap 120.

Specifically, the oil gas mixture heats up after the internal mechanical pressurization of the mechanical supercharger 300, a large amount of heat is released to the air through the heat dissipation disc 330, the temperature of the pressurized oil gas mixture is rapidly reduced after the internal depressurization of the pressure reduction diffuser 200, the planetary speed reducer 100 is cooled through the heat conduction between the end cover 120 and the cold guide disc 220, and the cooled oil enters the planetary speed reducer 100 and is cooled down to the internal structure of the planetary speed reducer 100.

In this embodiment, the number of the linkage rods 143 is several, and the linkage rods 143 are circumferentially distributed on the periphery of the output shaft disc 140, the other end of the linkage rods 143 is vertically connected with the surface of the eccentric guide disc 360, the outer side and the inner side of the eccentric guide disc 360 are both provided with a plurality of balls, the eccentric guide disc 360 and the output shaft disc 140 are concentrically arranged and rotatably installed on one side of the fixed partition disc 310, and the periphery of the rotating disc 351 is abutted to the balls on the inner side of the eccentric guide disc 360.

Further, the fixed scroll blades 370 and the movable scroll blades 352 are both positioned inside the seal guide ring 320, and the seal pads are provided on the surfaces of the fixed scroll blades 370 and the movable scroll blades 352, the seal pad on the fixed scroll blade 370 side slidably abuts against the surface of the rotating disk 351, and the seal pad on the movable scroll blade 352 side slidably abuts against the inside of the heat dissipation disk 330.

Specifically, a scroll compressor structure is formed by combining a stationary fixed scroll blade 370 and an eccentrically moving movable scroll blade 352, the pressure of the gas in the oil-liquid mixed gas is increased by reducing the volume of the gas in the oil-liquid mixed gas, the gas in the oil-liquid mixed gas is compressed by the change of the volume, and the volume of the compressor is changed by driving the movable scroll blade 352 to eccentrically move through a speed reduction output shaft of the planetary reducer 100, so that the purposes of air suction, compression and exhaust are achieved.

In this embodiment, the surface of the flow guiding pipe 400 is provided with a one-way valve 410, the pipe diameter of the liquid discharging pipe 211 is larger than that of the liquid inlet pipe 212, and the impeller 230 is of a turbine structure.

Specifically, the one-way valve 410 is used for realizing the one-way circulation of liquid flow from the liquid guide ring cover 332 to the liquid inlet pipe 212, and the pressure of the oil-liquid mixed gas in the pressure reduction diffuser 200 is released instantly, so that the temperature of the oil is rapidly reduced and the oil flows into the planetary speed reducer 100 through the liquid inlet pipe 212.

The working principle and the using process of the invention are as follows:

when the water-cooled planetary reducer is used, one end of the shaft lever 240 is connected with the driving structure, one end of the key gear sleeve 331 is connected with the driven structure, the shaft lever 240 and the input key shaft 130 are driven by the external driving structure to synchronously rotate, and planetary reduction transmission is carried out through meshing transmission of the output shaft disc 140, the planetary transmission teeth 142, the outer gear ring 121 and the input key shaft 130, so that the output shaft disc 140 carries out low-speed large-torque rotation, the output shaft lever 340 and the eccentric guide disc 360 are synchronously driven to move, and the output of the rotational driving force is carried out through sleeving of the key gear sleeve 331 and the output shaft lever 340, so that the speed reduction function is realized; meanwhile, the eccentric guide disc 360 rotates to drive the inner rotor 350 to perform eccentric rotation movement, the movable scroll blade 352 and the fixed scroll blade 370 move relatively to each other to form a scroll compressor structure, oil and gas in the planetary speed reducer 100 are introduced from the inlet 321, the pressure is increased by reducing the gas volume of the oil gas mixture, the gas compression of the oil gas mixture is realized by means of the change of the volume, the movable scroll blade 352 is driven to perform eccentric movement by the deceleration output shaft of the planetary speed reducer 100 to change the volume of the compressor, so that the purposes of air suction, compression and exhaust are achieved, the hydraulic force and the temperature of the oil gas mixture are rapidly increased in the compression, the temperature is diffused out of the outer environment of the mechanical supercharger 300 through the radiating disc 330, the high-pressure oil gas mixture is unidirectionally introduced into the pressure reducing diffuser 200 through the liquid guide ring cover 332, the guide pipe 400 and the one-way valve 410, the oil gas mixture is instantly reduced by the rotation pressure of the impeller 230 after entering the pressure reducing diffuser 200, the reverse Carnot cycle mode is adopted to actively reduce the temperature, the liquid flow after the temperature again flows back into the planetary speed reducer 100, and the working devices in the planetary speed reducer 100 are conducted and reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. Water-cooling planetary reducer, its characterized in that includes: the pressure reducing device comprises a planetary speed reducer (100), a pressure reducing diffuser (200), a mechanical supercharger (300) and a guide pipe (400) used for communicating the pressure reducing diffuser (200) and the mechanical supercharger (300), wherein the pressure reducing diffuser (200) and the mechanical supercharger (300) are respectively and fixedly arranged on the left side and the right side of the planetary speed reducer (100), the planetary speed reducer (100) comprises a speed reducing case (110), an end cover (120), an input key shaft (130) and an output shaft disc (140), an outer gear ring (121) located on the inner side of the speed reducing case (110) is fixedly arranged on one side of the end cover (120), and a flange rotary disc (141) penetrating to the outer side of the speed reducing case (110) is arranged on one side of the output shaft disc (140);

the mechanical supercharger (300) comprises a fixed partition disc (310), a sealing guide ring (320), a heat dissipation disc (330), an output shaft rod (340), a rotor (350) and an eccentric guide disc (360), wherein a key tooth sleeve (331) is rotatably installed on one side of the heat dissipation disc (330), the output shaft rod (340) is fixedly installed on one side of the key tooth sleeve (331), the other end of the output shaft rod (340) penetrates through the fixed partition disc (310) and is fixedly connected with the surface of the output shaft disc (140), the rotor (350) comprises a rotary disc (351) and a movable vortex blade (352) fixed on one side of the rotary disc (351), a fixed vortex blade (370) is fixedly installed on one side of the heat dissipation disc (330), the rotary disc (351) is rotatably sleeved on the inner side of the eccentric guide disc (360) and the rotary disc (351) is non-concentrically arranged with the eccentric guide disc (360), a through vortex shaft hole (353) sleeved on the outer side of the fixed vortex blade (370) is formed in the surface of the rotary disc (351), the flange rotary disc (141) is rotatably installed on the inner side of the fixed partition disc (310), a plurality of heat dissipation disc (360) is arranged on the periphery of the outer side of the fixed partition disc (143), and a plurality of key tooth sleeve (332) fixedly connected with the outer side of the heat dissipation guide disc (360) is arranged on the fixed partition disc (332);

the pressure reducing diffuser (200) comprises a pressure reducing box (210), a cold guide disc (220), an impeller (230) and a shaft lever (240) fixedly sleeved on the inner side of the impeller (230), the impeller (230) is rotatably installed on the inner sides of the pressure reducing box (210) and the cold guide disc (220), and one end of the shaft lever (240) is fixedly connected with the end part of the input key shaft (130);

the surface of the pressure reduction box (210) is provided with a liquid discharge pipe (211) and a liquid inlet pipe (212) which are symmetrical about the origin of the circle center of the pressure reduction box (210), one end of the liquid discharge pipe (211) is communicated with the inner side of the planetary speed reducer (100), the other end of the liquid inlet pipe (212) is communicated with the inner side of the liquid guide ring cover (332) through a guide pipe (400), the surface of the sealing guide ring (320) is provided with an inlet (321) communicated with the inner cavity of the planetary speed reducer (100), and cooling oil liquid is filled in the inner sides of the planetary speed reducer (100), the pressure reduction diffuser (200) and the mechanical supercharger (300);

the one-way valve (410) is used for realizing the one-way circulation of liquid flow from the liquid guide ring cover (332) to the liquid inlet pipe (212).

2. The water-cooling planetary reducer of claim 1, wherein the key gear sleeve (331) is rotatably sleeved on one side of the liquid guide ring cover (332) and is located on the same axis line with the output shaft rod (340), the eccentric guide disc (360), the output shaft disc (140) and the input key shaft (130), the diameter of the shaft passing hole (353) is larger than that of the output shaft rod (340), and the fixed scroll blade (370) and the movable scroll blade (352) are identical in structure size.

3. The water-cooled planetary reducer according to claim 1, wherein a plurality of planetary gears (142) are rotatably mounted on the surface of the output shaft disc (140), the outer sides of the planetary gears (142) are in transmission engagement with the inner side of the outer gear ring (121), and the input key shaft (130) is provided with a transmission gear key in transmission engagement with the surface of the planetary gears (142).

4. The water-cooled planetary reducer of claim 1, wherein the heat dissipation disc (330) and the cold guide disc (220) are of a metal plate-shaped structure, the surfaces of the heat dissipation disc (330) and the cold guide disc (220) are provided with a plurality of heat dissipation fins which are densely distributed, the partition disc (310) and the pressure reduction box (210) are made of non-metal heat insulation materials, one side of the cold guide disc (220) is fixedly adhered to the surface of the end cover (120), and the heat dissipation fins on the surface of the cold guide disc (220) are embedded in the surface of the end cover (120).

5. The water-cooled planetary reducer of claim 1, wherein the number of the linkage rods (143) is several, and the linkage rods are circumferentially distributed on the periphery of the output shaft disc (140), the other end of the linkage rods (143) is vertically connected with the surface of the eccentric guide disc (360), the outer side and the inner side of the eccentric guide disc (360) are both provided with a plurality of balls, the eccentric guide disc (360) and the output shaft disc (140) are concentrically arranged and rotatably installed on one side of the fixed partition disc (310), and the periphery of the rotating disc (351) abuts against the balls on the inner side of the eccentric guide disc (360).

6. The water-cooled planetary reducer according to claim 1, wherein the fixed scroll blade (370) and the movable scroll blade (352) are both located inside the seal guide ring (320), a seal gasket is provided on each of the surfaces of the fixed scroll blade (370) and the movable scroll blade (352), the seal gasket on the fixed scroll blade (370) side is in sliding contact with the surface of the rotating disk (351), and the seal gasket on the movable scroll blade (352) side is in sliding contact with the inside of the heat dissipation disk (330).

7. The water-cooled planetary reducer according to claim 1, wherein the surface of the draft tube (400) is provided with a one-way valve (410), the pipe diameter of the drain pipe (211) is larger than that of the liquid inlet pipe (212), and the impeller (230) is of a turbine structure.