318 results about "Gear oil" patented technology

The invention relates to the technical field of intelligent oil injection control, in particular to a limited slip differential gear oil performance directional optimization method and system.The limited slip differential gear oil performance directional optimization method comprises the following steps that the temperature rise rate is collected through a temperature sensor to calculate the gear shaft elongation, and a meshing clearance trend vector is generated by combining differential temperature time sequence analysis; the stability correction is calculated by fusing oil film thickness data, the injection angle compensation driving servo motor is solved based on vector projection, the adhesion factor index is constructed by coupling the oil injection feedback and the oil film difference, the oil product meeting the tension condition is switched when the limit is exceeded, and the lubrication recovery performance is evaluated. According to the method, gear shaft temperature rise and differential mechanism temperature gradient data are collected in real time, meshing clearance accurate prediction is achieved by combining expansion coefficient analysis, stability judgment is improved by fusing oil film thickness data, jet precision is optimized based on a vector projection dynamic compensation jet angle, and an adhesion factor index containing a phase difference is constructed to achieve lubrication attenuation early warning. And oil products are accurately switched by dynamically matching tension and viscosity threshold values, so that friction loss is reduced.

The invention relates to the technical field of design of an air suction prevention scheme for a hydraulic rocker gear oil cooling circulating pump of a coal mining machine, in particular to an air suction prevention method for the hydraulic rocker gear oil cooling circulating pump of the coal mining machine and the coal mining machine. Aiming at the problem of air suction damage of a circulating pump caused by change of the inclination angle of the rocker arm, oil suction ports are formed in the lowest liquid level positions of the positive and negative inclination angles of the rocker arm respectively, the inclination angles are monitored in real time through an angle sensor, and an electric control box controls an electric proportional reversing valve to act according to inclination angle signals and drives a hydraulic control reversing valve to be switched to a corresponding working position. And the gear oil circulating pump is always communicated with the current lowest liquid level oil suction port. According to the scheme, the pumping air corrosion risk is thoroughly eliminated, the service life of the pump body and the gear set is prolonged, and meanwhile system energy consumption is reduced. According to the preferable scheme, the filter and the cooler are integrated to form a closed-loop purification cooling loop, and the cleanliness and the thermal stability of the oil are further guaranteed. According to the invention, the adaptability defect of the fixed oil suction port under the dynamic dip angle working condition is overcome, and reliable guarantee is provided for high-load continuous operation of the coal mining machine.

Provided herein are processes for recycling hydrocarbons in a used high performance lubricant such as wind turbine gear oil. In the present process and methodologies, the used high performance lubricant is not mixed with another type of used oil. The used high performance oil is contacted with a solvent in an extraction process. Contaminates are extracted and circular hydrocarbons are formed. Solvent can be recovered, and the circular hydrocarbon combined with a high performance base stock for use as a high performance lubricant in a mechanical system.

The present invention relates to the field of lubricating oil technology, and in particular to a gear oil composition that can be used in a gearbox of a wind turbine generator set. The gear oil composition comprises: a low-viscosity poly-α-olefin and a high-viscosity synthetic ester; the weight ratio of the low-viscosity poly-α-olefin to the high-viscosity synthetic ester is 1:2 to 4.5; the kinematic viscosity of the low-viscosity poly-α-olefin at 100°C is 2 to 4.5 mm 2 / s; the high viscosity synthetic ester has a kinematic viscosity of 500 to 1500 mm at 40°C 2 The gear oil composition of the present invention has good biodegradability and sealing material compatibility, excellent hydrolysis resistance, low-temperature fluidity, extreme pressure and anti-wear properties, good oxidation stability, corrosion and rust resistance, and demulsification properties, can meet the performance requirements of wind power gearboxes, and is environmentally friendly.

The utility model discloses an automatic gear oiling machine, and belongs to the technical field of gear machining equipment. The gear oiling device structurally comprises a feeding frame, a discharging frame and a gear oiling set, an automatic gear oiling technology is adopted, a gear to be machined is placed in the gear oiling set, automatic limiting-oiling operation is carried out on the gear, labor loss of workers is effectively reduced, the gear oiling work efficiency is improved, and the gear oiling device is suitable for large-scale production. And meanwhile, the oil dripping quantity of the gear can be more uniform, and the situation that the oil dripping quantity of the gear is not uniform is avoided.

The utility model relates to the technical field of gear oil pumps, and discloses an anti-abrasion device of a gear oil pump, which comprises a lower pump body, an upper pump body is adjacently arranged above the lower pump body, a driven gear is rotatably connected inside the upper pump body, a motor is fixedly connected to one side of the outer wall of the lower pump body, a driving gear is fixedly connected to the output end of the motor, and the driving gear is fixedly connected to the other side of the outer wall of the lower pump body. The driving gear is in meshed connection with the driven gear, a plurality of tooth ends are fixedly connected to one side of the outer wall of the driving gear and one side of the outer wall of the driven gear, an oil outlet groove is formed in the driven gear, the upper end of the oil outlet groove is close to the tooth ends, and the lower end of the oil outlet groove is large and the upper end of the oil outlet groove is small. The oil storage tank is used for storing lubricating oil. According to the gear, the oil outlet groove, the oil inlet groove and the oil storage groove are matched with one another, so that lubricating oil enters the space between the two tooth ends, the effect that the gear always keeps lubricating during rotation is achieved under the action of the wear-resistant material, and the wear resistance is improved.

The utility model relates to the field of gear oil pump manufacturing, in particular to punching equipment for gear oil pump manufacturing, which comprises a workbench, two clamping assemblies are symmetrically arranged on the workbench, a sliding plate is arranged between the two clamping assemblies, first horizontal gears are arranged at two ends of the sliding plate, a transmission assembly is arranged between the two first horizontal gears, and a second horizontal gear is arranged between the two first horizontal gears. The sliding plate, the transmission rod, the first horizontal gear, the rack, the second horizontal gear and other components are arranged, and the transmission rod component, the first bevel gear component and the second bevel gear component are matched with one another in the working process; the two first horizontal gears on the sliding plate rotate in the same direction, the two racks move relatively through mutual cooperation between the rack component and the second horizontal gear component, the two clamping assemblies can synchronously clamp different positions of a part by controlling the sliding plate to move, and the stability in the working process is improved.

The application provides a floor grinding machine gear box guide plate structure parameter optimization design method, which is used for determining the optimal values of three radial clearances between the guide plate and the gear tooth top. Firstly, a parameterized gear box model containing clearance as a variable is constructed, and a gear oil stirring loss theoretical model is established based on the boundary layer theory and the fluid resistance theory; taking the maximum lubrication efficiency as the target and the oil stirring power loss not exceeding the set threshold as the constraint condition, a central composite design method is used to select representative sample points in the design space; through computational fluid dynamics simulation, a moving particle semi-implicit method is used for splash lubrication transient analysis to obtain performance data of each point; based on the simulation data, a high-precision proxy model is constructed; finally, under the condition of meeting the oil stirring power loss constraint condition, the maximum lubrication efficiency is taken as the target for optimization solving to obtain the optimal clearance combination. The method realizes the quantitative design from parameters to performance, and effectively replaces the traditional trial and error method.

The utility model discloses a sealing structure of a steering gear oil cylinder, which belongs to the technical field of sealing of steering gear oil cylinders and comprises a shaft steel wire baffle ring, an oil cylinder oil seal iron sleeve, a sealing rubber ring, a supporting sleeve, a high-pressure framework oil seal, a rack assembly and a steering gear assembly. The device is novel in design and ingenious, the annular groove is formed in the inner wall of the steering engine in advance, then a spring steel structure is adopted to be connected with the annular groove in a clamped mode, and therefore the aluminum blocking structure at the end of the steering engine oil cylinder shell is effectively locked, meanwhile, the high-pressure oil seal is additionally arranged on the other side of the blocking structure, and the sealing effect is good. The outer wall of the blocking structure is sleeved with the two sets of sealing rubber rings to enhance the sealing effect on oil, the two sets of sealing rubber rings and the high-pressure oil seal can achieve the purposes of shock absorption and noise reduction, the oil sealing performance of the steering engine oil cylinder shell is improved, the machining difficulty of the steering engine shell is reduced, the production and installation efficiency is improved, and the service life of the steering engine oil cylinder shell is prolonged. Therefore, the purpose of prolonging the service life of the steering engine can be achieved.

The application provides an extreme pressure anti-wear agent, a preparation method thereof and heavy load vehicle gear oil, and belongs to the technical field of extreme pressure anti-wear additives. The application provides an extreme pressure anti-wear agent with a chemical structure shown in formula I or formula II. Through molecular design, the prepared extreme pressure anti-wear agent has excellent high-temperature oxidation resistance, can reduce the friction coefficient of the surface of a friction pair, and in the friction process, nitrogen elements and boron elements in the borate ester diffuse from the friction surface to the matrix to form a permeation layer, improve the wear resistance of the surface of the material, play an extreme pressure anti-wear role, make the heavy load vehicle gear oil have better load-carrying capacity and extreme pressure resistance, and thus play an energy-saving and consumption-reducing role.

The utility model relates to an oil baffle cover structure for a commercial drive axle, and belongs to the technical field of automobiles. The axle comprises an axle housing capable of containing gear oil, a driven gear and a pair of bearing seats are arranged in the axle housing, and the driven gear is located between the pair of bearing seats. An oil blocking cover is fixedly arranged in the axle housing and located on one side of the rotating direction of the driven gear, the rotating direction of the driven gear corresponds to the advancing direction of an automobile, and a certain gap is formed between the inner wall of the oil blocking cover and the edge of the peripheral side of the driven gear. When the driven gear rotates, the oil blocking cover prevents the driven gear from carrying excessive gear oil. According to the drive axle, the gear oil quantity carried by the driven gear can be effectively reduced, the oil stirring power of the driven gear is reduced, then power loss is reduced, meanwhile, the oil blocking cover can reduce splashing of redundant oil liquid, the blocked gear oil is guided to the position close to the driven gear to lubricate moving parts, and the requirement for lubrication in the drive axle is met; the oil blocking cover is simple in structure and low in manufacturing cost.

The utility model discloses a gear oil pump which comprises a driving gear. A driven shaft coaxially penetrates through the driving gear, the lower end of the driven shaft is fixedly connected with the driving gear, the upper end of the driven shaft is connected with the driving shaft through an overload protection structure, and the overload protection structure comprises a variable-diameter protruding part coaxially fixed to the driven shaft and a variable-diameter containing part coaxially arranged outside the variable-diameter protruding part in a sleeving mode; a driving shaft is coaxially fixed at the upper end of the variable-diameter accommodating part and is connected with a driving device; when the friction force between the variable-diameter containing part and the variable-diameter protruding part is large enough to drive the driven shaft to rotate, the variable-diameter containing part is fixedly connected with the variable-diameter protruding part, and when the friction force between the variable-diameter containing part and the variable-diameter protruding part is not large enough to drive the driven shaft to rotate, the variable-diameter containing part is rotationally connected with the variable-diameter protruding part; when the driving gear cannot rotate relatively or is difficult to rotate, the driving gear is rotationally connected with the driving device, so that the driving device rotates without load.

The invention relates to the technical field of speed reducers, and provides a novel cutting speed reducer lubricating system which comprises a cutting speed reducer and further comprises an internal lubricating hole path and an external pipeline device, and the internal lubricating hole path comprises a forced lubricating hole path; the forced lubrication hole path comprises a middle machine body oil pool, a filter, an oil pump oil inlet pipe, a gear oil pump, an oil pump oil outlet pipe, a machine body oil supply hole, a machine frame oil supply hole, a machine frame oil return hole, a machine body oil return hole and a lubricating oil output point position. The problem that the gear and the bearing are not fully lubricated and cooled due to damage of the gear oil pump and unreasonable design of internal pipelines can be solved, the reliability of key parts such as the gear and the bearing of the speed reducer is effectively improved, and therefore it is guaranteed that the cutting speed reducer can efficiently operate for a long time.

The invention discloses a magnetic gear motor system for a deep-sea robot and a use method of the magnetic gear motor system, and belongs to the technical field of robots. The transmission mechanism comprises two sets of power assemblies which are symmetrically arranged, a magnetic gear transmission assembly and a speed reducer assembly, the magnetic gear transmission assembly adopts a radially-arranged magnetic adjusting ring output scheme, and an air gap between an outer rotor and a machine shell is eliminated so as to reduce the machining difficulty. The switching assembly drives the motors and the inner rotors of the two subsystems to synchronously and reversely move, non-contact gear shifting with the high / low transmission ratio is achieved, and mechanical abrasion is avoided. The independent oil way system prevents metal chips of the speed reducer from polluting a magnetic gear oil way. Differential rotation or reverse rotation of the two motors is controlled, differential operation of the output end is achieved so as to reduce the turning radius or turn around in situ, and a mechanical differential mechanism is omitted. The invention has the advantages of high torque output, wear-free gear shifting and high reliability, and is suitable for deep sea heavy load operation.

The utility model discloses a self-lubricating sealing support mechanism, which comprises a transmission sealing sleeve, a support sleeve, a sealing cover, a bearing, a first sealing ring and a second sealing ring, the support sleeve and the sealing cover are respectively sleeved outside a transmission shaft and are detachably connected together, the transmission sealing sleeve is sleeved between the transmission shaft and the support sleeve, and the bearing is arranged on the support sleeve. The transmission sealing sleeve, the supporting sleeve and the sealing cover jointly limit the bearing arranged outside the transmission shaft in a sleeving mode, the bearing is communicated to an oil cavity of the gear oil tank, the first sealing ring is sealed between the transmission shaft and the transmission sealing sleeve, the second sealing ring is sealed between the transmission sealing sleeve and the supporting sleeve, the bearing does not need to be lubricated manually at regular intervals, and the working efficiency is improved. And self-lubrication of the bearing can be realized.

The utility model discloses a wear -resisting alloy gear oil pump relates to gear pump technical field, including oil pump subassembly, and oil pump subassembly includes pump body, end cover, input rod, driving gear and driven gear, and driving gear and driven gear are rotationally installed in the pump body, the utility model discloses a spiral wear -resisting groove is arranged on the tooth top circle surface of gear, and the wear -resisting groove is filled with molybdenum disulfide grease, can form good lubricating effect on the contact surface of gear and other components, reduce friction and abrasion, reduce the metal scrap of abrasion simultaneously, avoid the damage of scrap to other components, in addition, wear -resisting bushing is arranged in the position corresponding to the gear outer circle of the inner wall of pump body, and wear -resisting bushing is made of high -hardness ceramic material, and the surface of side plate and gear end face contact is plated with a layer of hard alloy coating, further improved the wear resistance between each component of gear oil pump, prolonged the service life of whole gear oil pump.

The invention relates to the technical field of equipment control, in particular to a filtering device for filtering oil sludge in gear oil and a control method. A data acquisition module acquires and preprocesses pressure, flow and temperature data to generate a multi-dimensional data flow; the digital twin module drives a hybrid virtual model based on the data stream and outputs a system state estimation value; the parameter optimization module executes multi-objective optimization calculation to generate pressure and flow set values, and iteratively corrects the pressure and flow set values through virtual verification; the learning adaptation module constructs a knowledge base and adapts a new working condition by using a meta-learning algorithm; and the execution control module converts the optimized set value into a control instruction and feeds back an execution deviation. And each module forms a multi-level feedback closed loop and an updating path through a data quality evaluation result, optimization set value virtual verification, execution deviation and an adaptation rule, so that accurate cooperative control of filtering pressure and flow is realized, and the oil sludge removal thoroughness and the filtering efficiency are effectively improved.

This application relates to the field of gear oil pump technology and discloses a gear oil pump device, including a gear oil pump, a water-cooled base fixedly installed at the bottom of the gear oil pump, a liquid storage chamber opened in the water-cooled base, a base fixedly installed at the bottom of the water-cooled base, a liquid storage tank fixedly installed on the right side of the base and the right side of the water-cooled base, a heat dissipation box fixedly installed on the top of the liquid storage tank, and a first mounting plate fixedly installed on the inner wall of the top and bottom of the heat dissipation box. This application has the following advantages and effects: by providing a first heat dissipation mechanism, the gear oil pump can be cooled by air; by providing a second heat dissipation mechanism, air can be blown into the liquid storage tank through ventilation holes, accelerating the airflow on the surface of the coolant. The heat dissipation holes form a thermal convection channel, efficiently removing the heat absorbed by the coolant, thereby accelerating the cooling of the coolant and improving the water cooling effect.

The invention relates to lubricating oil for an electric drive axle of a commercial vehicle and a preparation method thereof, and belongs to the technical field of lubricating oil. The lubricating oil for the electric drive bridge comprises the following components in parts by weight: 85-95 parts of base oil, 2-10 parts of a composite additive, 2-8 parts of a viscosity index improver and 0.1-0.5 part of an electric drive oil reinforcing agent, the base oil is a combination of coal-to-liquid and poly-alpha-olefin; the total amount of the components is 100 parts. The invention also provides a preparation method of the lubricating oil for driving the axle. By optimizing a lubricating formula, the problems of high rotating speed, high load, large torque and multi-working-condition operation of an electric drive axle are solved in a targeted manner, and compared with traditional GL-5 gear oil, transmission efficiency can be remarkably improved, the service life of parts can be prolonged, electrical safety can be guaranteed, and the lubricating oil is a key guarantee for reliable operation of an electric drive axle system.

1. Name of the product in this design: Gear oil filling and recycling trolley. 2. Purpose of this design: for gear oil filling and recycling. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention provides a transverse shaft type cutting mechanism and a transverse shaft type heading machine, and belongs to the field of tunnel construction equipment. The transverse shaft type cutting mechanism comprises a speed reducer, a cutting head and a spraying flow distribution mechanism, a flow distribution channel is arranged in the spraying flow distribution mechanism, an overflow cavity is arranged in the transverse shaft type cutting mechanism, and a sealing sleeve is installed between the cutting head and an end cover of the speed reducer in a sealing mode. A dynamic sealing structure is arranged between the speed reducer end cover and the outer peripheral surface of a water inlet seat fixed on a rotating shaft of the speed reducer in the spray flow distribution mechanism; and an overflow water channel which is communicated with an overflow cavity and is used for leading leaked water to the outer surface of the transverse shaft type cutting mechanism is arranged in the transverse shaft type cutting mechanism. The horizontal shaft type heading machine comprises the horizontal shaft type cutting mechanism. On the basis of an existing cutting mechanism capable of spraying directionally, internal leaked water can be discharged to the outer surface in time by improving the structure, gear oil and bearing lubricating oil are prevented from being polluted by leaked water, and field personnel can obtain water leakage information as soon as possible.

This invention relates to the field of speed reducer technology and provides a novel lubrication system for a cutting speed reducer. The system includes a cutting speed reducer, internal lubrication channels, and external piping. The internal lubrication channels include a forced lubrication channel, comprising a central oil sump, a filter, an oil pump inlet pipe, a gear oil pump, an oil pump outlet pipe, oil supply holes for the machine body, oil supply holes for the frame, oil return holes for the frame, oil return holes for the machine body, and a lubricating oil output point. This invention solves the problems of insufficient lubrication and cooling of gears and bearings caused by gear oil pump damage and unreasonable internal piping design, effectively improving the reliability of key components such as gears and bearings in the speed reducer, thereby ensuring that the cutting speed reducer can operate efficiently for extended periods.

The invention discloses an extreme pressure anti-wear gear oil composite additive and a processing method thereof, and relates to the technical field of gear oil composite additives, and the extreme pressure anti-wear gear oil composite additive comprises the following components: 15-25% of sulfurized isobutylene, 10-20% of zinc dialkyl dithiophosphate, 8-15% of polyisobutylene succinimide, 5-12% of mahogany petroleum sulfonate, 5-12% of 2, 3, 5-trimethyl-1, 3-pentanediol monoisobutyrate, 5-12% of 2, 3, 5-trimethyl-1, 3- According to the invention, through scientific compounding of core functional components, synergistic interaction of extreme pressure and anti-wear performance is realized, the defect that performance of a single additive is poor is effectively overcome, the anti-wear performance of the lubricating oil is greatly improved, the service life of the lubricating oil is prolonged, and the service life of the lubricating oil is prolonged. The product can be precisely adapted to different application scenes such as heavy-load engineering machinery, high-speed precise gear transmission systems and mining machinery, can form a stable lubricating protective film under harsh working conditions, resists the failure problems such as abrasion, scratch and sintering of a gear contact surface, is high in adaptability, does not need to additionally adjust a formula according to the working conditions, and is low in cost. The lubricating protection requirements of various gear transmission devices can be met, and the application range is wide.

The invention relates to the field of lubricating oil, in particular to a nonferrous metal-friendly gear oil composition as well as a preparation method and application thereof. The gear oil composition comprises the following components in parts by weight: 100 parts of wind power gear oil and 0.5-2 parts of ammonium phosphate, wherein the wind power gear oil contains alkyl polysulfide with medium and low activity, and the content of trivalent sulfur of the alkyl polysulfide is 50-100%. The wind power gear oil composition provided by the invention is excellent in performance, the compatibility of an oil product and a sliding bearing, especially a copper part, can be improved to a greater extent, and the metal corrosion with a fan gear box is reduced; the wind power gear oil composition provided by the invention has the advantages of simple components, easily available raw materials, simple preparation method and wide large-scale application prospect, and can meet the requirements of customers on extreme pressure wear resistance of wind power gear oil.

The present invention relates to a liquid detection indicator, configured to provide a visual and / or tangible indication if liquid such as water leaks into a cavity / space. The liquid soluble element can be made to withstand oil, but dissolve completely or partly in water, thereby allowing the liquid detection indicator to be installed either in a dry void, or in a void filled completely or partly with oil such as lubrication / gear oil, this so that if water enters said dry void, or if an amount of water ingress to said oil filled void exceeds a certain value, the liquid soluble element will dissolve partly or complete to release a mechanism allowing for a visual and / or tangible signal, e.g. release plunger.

This utility model relates to a single-side plate gear oil pump with a shared oil outlet, belonging to the field of gear oil pump technology. It includes a front pump body and a rear pump body, with an intermediate body fixedly disposed between them. A front pump drive gear and a front pump driven gear are rotatably disposed inside the front pump body, and a rear pump drive gear and a rear pump driven gear are rotatably disposed inside the rear pump body. A side plate is disposed inside both the front and rear pump bodies. The side plate inside the front pump body is located on the side of the front pump drive gear and the front pump driven gear away from the intermediate body, and the side plate inside the rear pump body is located on the side of the rear pump drive gear and the rear pump driven gear away from the intermediate body. An oil inlet is disposed on one side of the front pump body, and an oil inlet and an oil outlet are disposed on each side of the rear pump body. This design solves the problems of numerous parts and pipelines in traditional gear pumps.

The utility model discloses a main speed reducer with an oil baffle plate structure, a drive axle and a crane. The main speed reducer comprises a driving bevel gear, a driven bevel gear and an oil baffle plate, the driving bevel gear and the driven bevel gear are rotationally supported in the axle housing after being meshed with each other; the oil baffle plate is fixed together with the axle housing, wraps the lower parts of the driving bevel gear and the driven bevel gear and is used for blocking most or all gear oil on the outer side of the oil baffle plate; the oil baffle plate is in clearance fit with the driving bevel gear and the driven bevel gear and does not interfere with rotation of the driving bevel gear and the driven bevel gear. According to the main speed reducer with the oil baffle plate structure, the oil baffle plates are arranged around the driving bevel gear and the driven bevel gear, the oil stirring loss of a drive axle can be effectively reduced through experimental verification, and the transmission efficiency of the drive axle is improved.

The utility model relates to lubricating oil fine filter equipment technical field especially based on lubricating oil pollution degree's gear box on -line fine filter equipment, including filter jar, the top of filter jar is provided with the jar cover, the top edge department of jar cover is provided with the pressure gauge, the top middle department of jar cover is provided with the manual pressure discharge mouth, the inside installation of filter jar has the filter core, the left upper side of filter jar is provided with first connecting pipeline, the outer end of first connecting pipeline is provided with the gear box, the bottom of filter jar is provided with the oil pollution monitor, the downside of filter jar front is provided with the oil pump, is provided with second connecting pipeline between the oil pump and gear box, the right lower side of filter jar is provided with the oil drain pipe, installs solenoid valve on the oil drain pipe, sum up the design to be from, thereby can effectively improve the gear oil cleanliness under the condition of not influencing main oil way lubrication, realizes oil high -efficient recycling, finally reaches the purpose that prolongs equipment life.

The application discloses a magnetic gear motor system for a deep-sea robot and a use method thereof, and belongs to the technical field of robots. The transmission mechanism comprises two sets of power assemblies, a magnetic gear transmission assembly and a speed reducer assembly which are symmetrically arranged, wherein the magnetic gear transmission assembly adopts a radial arrangement of a magnetic adjusting ring output scheme, and the air gap between an outer rotor and a shell is eliminated to reduce the machining difficulty. By switching the assembly to drive the motors of the two sets of subsystems and synchronously moving the inner rotors in the reverse direction, non-contact gear shifting of high / low transmission ratio is realized, and mechanical wear is avoided. An independent oil path system prevents the metal chips of the speed reducer from polluting the magnetic gear oil path. By controlling the differential speed or reverse rotation of the two motors, differential speed operation of the output end is realized to reduce the turning radius or make a U-turn in place, and a mechanical differential is omitted. The application has high torque output, non-wear gear shifting and high reliability, and is suitable for deep-sea heavy-load operation.

The utility model discloses a multistage filtering device for gear oil, which relates to the technical field of gear oil, and comprises a box body, a stirring shaft and a filtering frame, a motor is fixedly arranged at the top of the box body, the output end of the motor extends into the box body and is fixedly provided with the stirring shaft, flow guide blocks are fixedly arranged on both sides in the box body, and the filtering frame is fixedly arranged on the box body. A switch valve is fixedly installed between the two flow guide blocks, a plurality of first flow guide plates are fixedly installed on one side of the interior of the box body, a plurality of second flow guide plates are fixedly installed on the other side of the interior of the box body, and the second flow guide plates are located at the bottoms of the first flow guide plates correspondingly; and fixing columns are fixedly mounted at the bottoms of the multiple first flow guide plates. According to the gear oil multi-stage filtering device, water in gear oil can be evaporated, particles in the gear oil can be filtered, the filtered particles can be cleaned in time, the filtering frame is prevented from being blocked, and the practicability of the gear oil multi-stage filtering device is improved.