1087 results about "Oil cooling" patented technology

The joint module comprises a motor and a harmonic reducer, the motor comprises a shell, a stator assembly and a rotor assembly, the shell comprises an outer shell and an inner oil cavity, a first oil port and a second oil port are formed in the two ends of the inner oil cavity respectively, the stator assembly is fixed to the inner side of the inner oil cavity, and the rotor assembly is fixed to the outer side of the inner oil cavity. The rotor assembly comprises a rotating shaft and a rotor hub arranged on the rotating shaft, the rotor hub comprises an inner shell and an outer shell, the inner shell and the outer shell are fixed through a connecting piece, an oil stirring channel is formed, the harmonic reducer comprises a wave generator, a flexible gear, a supporting bearing outer ring and a supporting bearing inner ring, and the rotating shaft is connected with the wave generator. The wave generator drives the flexible gear to deform, the flexible gear is fixed to the rear end cover, the outer ring of the supporting bearing is fixed to the rear end cover, and a gear ring is arranged on the inner wall of the inner ring of the supporting bearing and is in staggered tooth transmission with the flexible gear. Oil liquid is in direct contact with a stator heating source, the stator heat dissipation efficiency is improved, the rotor hub drives the oil liquid to flow, and the heat exchange efficiency is improved.

The invention relates to an aircraft electric drive oil cooling structure which comprises an outer rotor assembly, a stator assembly, a controller assembly, an oil pump and a heat dissipation assembly, the stator assembly comprises a stator shell and a winding, a sealing cover is further fixed to the outer side of the winding, and a cooling cavity is formed between the sealing cover and the stator shell; a bottom plate is further arranged at the bottom of the stator shell, the controller assembly is fixed in a mounting cavity formed by the bottom plate and the stator shell and comprises a circuit board and a cooling plate which are close to each other, the circuit board is connected with the winding, an oil duct A is further arranged on the bottom plate, an oil inlet pipe and an oil outlet pipe are arranged on the cooling plate, and an oil duct B communicated with a cooling cavity is further arranged on the bottom plate; the heat dissipation assembly comprises a heat dissipation fin set and a fan assembly, the heat dissipation fin set and the oil pump are both fixed to the lower portion of the bottom plate, heat dissipation fins form a ring and are arranged outside the oil pump in a surrounding mode, the heat dissipation fin set, the oil pump and the bottom plate are communicated with one another, and the fan assembly is fixed to the lower portion of the heat dissipation fin set. Efficient, light-weight, high-integration-level and reliable heat dissipation of the electric drive of the aircraft is achieved.

The invention provides a power transformer electromagnetic loss control method and device in an intelligent power grid environment, and relates to the field of intelligent power grids, and the method comprises the steps: carrying out the cooling demand prediction of a transformer according to a predicted power load sequence and a space temperature sequence, and outputting a predicted cooling load sequence; and with meeting of the predicted cooling load sequence as a constraint and minimization of energy consumption and oil temperature fluctuation as optimization targets, cooling parameters of the forced oil cooling device are optimized, an optimal cooling parameter sequence is output, and the forced oil cooling device is controlled to dissipate heat of the transformer. The method aims to solve the technical problems that a traditional control method lacks cooling strategy dynamic adjustment capacity, temperature rise abnormity is prone to occurring in a high-load or high-temperature environment, transformer iron core loss and winding loss are remarkably increased, and electromagnetic loss is high, accurate and efficient cooling control can be achieved, the electromagnetic loss is effectively reduced, and the service life of a transformer is prolonged. And the operation efficiency and stability of the transformer are improved.

The invention relates to the technical field of motorized spindles, in particular to an intelligent monitoring, regulating and controlling system and a control method of a motorized spindle. A first front-end displacement sensor and a second front-end displacement sensor are used for detecting the displacement amount of a front-end bearing in the X direction and the Y direction respectively, and a first rear-end displacement sensor is used for detecting the displacement amount of a rear-end bearing in the Z direction; when the displacement of the front-end bearing in the X direction and the Y direction or the displacement of the rear-end bearing in the Z direction exceeds a set threshold value, the signal acquisition control system controls the piezoelectric ceramic sensor to act so as to adjust the pre-tightening force of the motorized spindle, and when the temperature detected by the temperature sensor exceeds the set threshold value, the water cooling system is started for cooling, and when the temperature still exceeds the set threshold value, the motor is started. According to the electric spindle cooling system, accurate control over the cooling effect of the electric spindle is achieved through combination of water cooling and oil cooling.

The invention relates to the technical field of transformer heat dissipation, in particular to an oil cooling radiator for a transformer, which comprises a shell, an oil conservator, a telescopic driving piece, cooling fins and the like, electrical elements are arranged in the shell; an oil conservator used for stabilizing the oil pressure in the shell is arranged on the shell; the oil conservator is communicated with the interior of the shell; a plurality of telescopic driving pieces are arranged on the shell; the telescopic ends of every two telescopic driving pieces which are opposite in the front-back direction are jointly and fixedly connected with a plurality of cooling fins used for conducting heat dissipation on insulating oil. The cooling fins are made of heat conduction materials. And each radiating fin is of a hollow structure. The oil leakage part of the welding seam of the cooling fin is blocked through the rubber scraping strip and the blocking plate, insulating oil is prevented from continuously leaking, the insulation performance of electrical components in the transformer is prevented from being reduced, faults such as short circuit and discharge caused by insufficient insulation strength are reduced, and meanwhile it is avoided that follow-up maintenance work is affected by insulating oil leakage.

The invention relates to the technical field of motor cooling, in particular to an oil-water composite cooling motor heat dissipation structure and a heat dissipation method thereof.The oil-water composite cooling motor heat dissipation structure comprises a machine shell, a stator iron core, a winding and a rotor are arranged in the machine shell, and a hollow shaft is inserted into the rotor in a penetrating mode. Water flows through the S-shaped water channel on the casing, the casing and the stator core are cooled when the water passes, most heat is taken away, and basic temperature control is maintained; cooling oil is guided into the first oil cooling channel, the second oil cooling channel and the third oil cooling channel through the oil inlets, it is guaranteed that all positions of the stator can make synchronous contact with heat dissipation oil in the first oil cooling channel, particularly, effective heat dissipation is conducted on a stator iron core, the oil enters an oil injection ring, and the cooling effect is improved. According to the utility model, oil is sprayed to a stator winding at 360 degrees circumferentially, heat dissipation is enhanced, the other two oil cooling channels guide oil to a bearing and a rotor respectively, a plurality of heating parts can be considered, a specific oil way is designed to directly cool the heating parts, the lubricating and heat dissipation efficiency is improved, and high-speed operation of the motor is realized.

The present invention discloses a mechanical engineering reducer with an oil cooling assembly and a control method thereof, comprising a cooling box and a reducer fixedly mounted on the top of the cooling box, a motor fixedly mounted on the top of the cooling box near one side of the reducer, a coupling fixedly connected between the motor and the reducer, an oil pump fixedly mounted on the top of the reducer, a liquid inlet of the oil pump fixedly connected to a liquid inlet pipe extending into the interior of the reducer, a liquid outlet fixedly connected to a liquid outlet pipe, a purifier connected to the liquid outlet pipe, an S-shaped heat exchange tube fixedly connected to one end of the liquid outlet pipe, an air cooling fin assembly for cooling the S-shaped heat exchange tube provided inside the cooling box, and fan assemblies provided on both sides of the air cooling fin assembly. The present invention relates to the field of reducer cooling technology, and the mechanical engineering reducer with an oil cooling assembly and a control method thereof solve the problem that the existing heat dissipation device of the reducer has certain limitations and an unsatisfactory heat dissipation effect.

The utility model relates to an oil way system, a cascade unit, energy-saving equipment and refrigeration equipment, the oil way system comprises a first heat exchanger, a first oil tank and a second oil tank, a first channel and a second channel are arranged in the first heat exchanger, and heat exchange can be conducted between the first channel and the second channel; two ends of the first oil tank are respectively communicated with the first channel to form a first circulating oil path; the two ends of the second oil tank communicate with the second channel to form a second circulating oil way. According to the oil way system, when the oil temperature in the first oil tank and the oil temperature in the second oil tank have a large temperature difference, the oil temperature of one oil tank is too low, and the oil temperature of the other oil tank is too high or too high, heat exchange between the two circulating oil ways can be achieved through the first heat exchanger; and therefore, the conditions of too low oil temperature and too high oil temperature are relieved synchronously, and normal operation of an oil way can be guaranteed. No extra heating assembly or oil cooling assembly is needed, and the power consumption and the manufacturing cost of the oil way system can be obviously reduced.

The invention discloses a long-service-life composite heat treatment method for a harmonic reducer flexible gear made of an SNCM439 material, belongs to the technical field of long-service-life manufacturing of harmonic reducers, and solves the problem that the service life of the harmonic reducer flexible gear is short. According to the method, a flexible gear made of an SNCM439 material is subjected to a composite heat treatment method of secondary normalizing, quenching, deep cooling and tempering, and the specific process method is as follows: the primary normalizing temperature is 870-890 DEG C, the heat preservation time is 50-70 minutes, and air cooling is performed; the secondary normalizing temperature is 850-870 DEG C, the heat preservation time is 50-70 min, and air cooling is carried out; the quenching temperature is 830-850 DEG C, the heat preservation time is 50-70 min, and oil cooling is conducted; the subzero treatment temperature is-70 DEG C to-90 DEG C, and the heat preservation time is 110-120 min; the tempering temperature is 490-510 DEG C, and the heat preservation time is 120-140 minutes.

The invention relates to an electronic oil pump control method and system of a vehicle oil cooling electric drive system. The electronic oil pump control method of the vehicle oil cooling and electric driving system comprises the following steps that at least two operation parameters of the vehicle oil cooling and electric driving system are obtained, and the operation parameters comprise a temperature parameter and a parameter related to a load; comprehensively determining the required flow of the electronic oil pump based on the at least two operation parameters; inquiring pre-stored flow and rotating speed MAP data according to the required flow to obtain a corresponding target rotating speed of the electronic oil pump; based on the target rotating speed, the control current of the electronic oil pump is adjusted to control the actual rotating speed of the electronic oil pump, and then the required flow is provided; the electronic oil pump control method of the vehicle oil-cooling electric drive system can solve the problem that the electronic oil pump control strategy of a heavy truck electric drive system is not fine, and is high in efficiency.

The invention provides a high-speed oil-cooled flat wire motor stator oil path structure design method, which comprises the following steps of: sequentially establishing a structure model, a loss model and a thermal analysis model of a high-speed flat wire motor based on the thoughts of a thermal network method and a finite element method; determining an optimal design scheme of the motor oil cooling system by gradually simulating and calculating temperature rise conditions of important positions in the motor when different spraying ring structures and iron core oil path layout are selected, and finally constructing a test motor entity according to the optimal design scheme determined by simulation and carrying out a bench test to verify the reasonability of the scheme. Therefore, an accurate and efficient oil cooling system design theory suitable for the flat wire winding permanent magnet driving motor is formed.

The application discloses a motor oil cooling system and a motor oil cooling method. The motor oil cooling system comprises an oil cooling shell assembly, a stator assembly arranged in the oil cooling shell assembly, and a rotor assembly arranged in the stator assembly and rotationally connected with the stator assembly through a bearing. An end cover assembly is arranged at the right end of the oil cooling shell assembly. A shell oil passage is arranged between the oil cooling shell assembly, the stator assembly and the end cover assembly. A rotor oil passage is arranged in the rotor assembly. A shell oil inlet channel and a shell oil return channel are arranged on the oil cooling shell assembly and are communicated with the shell oil passage. A rotor oil inlet channel is arranged on the rotor assembly and is communicated with the rotor oil passage. The rotor oil passage is communicated with the shell oil return channel. The motor can be efficiently and sufficiently cooled by simultaneously cooling the stator core, the stator winding, the rotor core, the bearing and other heating parts, and the motor has better process performance and cost advantage.

This application relates to a performance test system and method for a self-circulating steam compressor. Specifically, the system includes a steam input system, a steam compression system, a buffer and storage system, a steam recovery system, and an intelligent control system, as well as an optional steam compressor makeup water system, a condensate recovery system, and an internal oil cooling system. The self-circulating steam compressor performance test system described herein only requires a small amount of external steam to be input at the initial startup stage. After reaching a stable state, it can achieve full self-circulation operation. This reduces steam consumption, improves the overall economy and energy utilization rate of the system, and has strong operating reliability.

The invention relates to the field of hydraulic oil cooling, in particular to a hydraulic oil cooler which comprises a tank body, a hydraulic oil inlet, a hydraulic oil outlet, a cooling liquid inlet and a cooling liquid outlet are formed in the tank body, two partition plates are fixedly arranged in the tank body, and a hydraulic oil storage area communicated with the hydraulic oil inlet and the hydraulic oil outlet is arranged between the two partition plates. Cooling liquid flowing areas communicated with the cooling liquid inlet and the cooling liquid outlet are arranged between the two partition plates and the tank body respectively, two cooling assemblies are arranged in the hydraulic oil storage area, a rotating shaft is arranged between the two cooling assemblies, and paddles are arranged on the rotating shaft. Kinetic energy of hydraulic oil is effectively absorbed through rotation of the paddles, the shaking amplitude of the hydraulic oil is reduced, along with rotation of the rotating shaft, the driving assembly drives the cooling pipes to reciprocate, the contact positions between the cooling pipes and the hydraulic oil are changed, the cooling effect is improved, and the cooling effect is improved. And the heat exchange efficiency is improved.

The embodiment of the invention provides a bidirectional double-layer oil cooling driving motor, a power assembly and an electric vehicle, and a stator iron core of a stator comprises a first iron core, a second iron core and a third iron core. The distance between each first-layer axial flow channel of the first iron core and a center hole of the stator iron core is larger than the distance between each second-layer axial flow channel and a center hole of one first iron core, the second iron core comprises a plurality of sets of bidirectional radial flow channels, and the radial flow channels in each set of bidirectional radial flow channels comprise a plurality of first radial flow channels and a plurality of second radial flow channels. The flow direction of the cooling oil in each first radial flow channel is opposite to that of the cooling oil in each second radial flow channel; each first radial flow channel is used for communicating with one first-layer axial flow channel and one second-layer axial flow channel, and each second radial flow channel is used for communicating with the other second-layer axial flow channel and one or more oil injection flow channels. The stator can realize oil cooling at the two ends without increasing the oil quantity, and the problems of small oil quantity, low oil pressure and difficult spraying are avoided.

The invention belongs to the technical field of titanium and titanium alloy machining, and relates to a Ti65 alloy large-specification bar capable of improving the flaw detection level and a forging technology of the Ti65 alloy large-specification bar. The forging technology comprises the following steps that a Ti65 cast ingot is heated to 1150-1200 DEG C, and air cooling is conducted after one-heating-time, one-upsetting-one-drawing cogging is conducted; the blank is heated to a beta-phase region, and air cooling is conducted after one-heating-time one-upsetting-one-drawing forging is conducted; the blank is heated to an alpha + beta phase region for heat preservation and then is subjected to oil cooling; the blank is heated to an alpha + beta phase region to be subjected to one-heating-number two-upsetting and two-drawing forging, and then air cooling is conducted; the blank is heated to a beta-phase region for heat preservation and then is subjected to oil cooling; the blank is heated to an alpha + beta phase region to be subjected to four to six heating times, one-upsetting and one-drawing forging, and then air cooling is conducted; and heating the blank to an alpha + beta phase region for forming. The Ti65 alloy bar with the diameter of 300-450 mm prepared by the process has a uniform equiaxed structure and a good flaw detection level, and the clutter level of manual semi-sonic path distance flaw detection by adopting a flat-bottomed hole with the diameter of phi 1.2 in the diameter direction is lower than-9 db.

The invention discloses a processing technology of a high-hardness wear-resistant steel guide rail, relates to the technical field of alloy tool steel heat treatment, and aims to solve the problems of insufficient wear resistance, large heat treatment deformation, high cracking risk and non-uniform cooling in the production process of the high-hardness wear-resistant steel guide rail in the prior art. The invention provides a high-hardness wear-resistant steel guide rail prepared from 9Mn2CrWV steel, and a processing technology comprising preheating, austenitizing treatment, oil cooling (including heat straightening), primary tempering, deep cooling, secondary tempering and post-treatment. According to the process, by strictly controlling the temperature, the time and the medium of each stage, the hardness, the wear resistance and the structure uniformity of the guide rail are effectively improved, meanwhile, the risks of deformation and cracking are remarkably reduced, and green and environment-friendly production is achieved.

The utility model discloses an inner cooling oil chamber, oil cooling piston and engine, including: inner cooling oil chamber body, including oil chamber body lower part and oil chamber body upper part, oil chamber body upper part at least includes first vortex area and second vortex area, first vortex area is closer to piston center than second vortex area, and the first vortex area is closer to piston center than second vortex area. The second vortex region is closer to the piston ring groove than the first vortex region. Engine oil is sprayed into the oil inlet channel through an engine oil pump and enters the inner cooling oil cavity body through the oil inlet channel. Along with rapid and high-frequency up-and-down movement of the piston, engine oil continuously collides with the upper wall face and the lower wall face of the inner cooling oil cavity body under the action of inertia force, part of the engine oil impacts the first vortex area to form a first vortex, and part of the engine oil impacts the second vortex area to form a second vortex. The contact area of engine oil and the inner cooling oil cavity body is increased, the flowing speed of the engine oil in the vortex area is higher, a better cooling effect is generated, the temperature of a piston can be more effectively reduced, and the phenomenon that the engine oil in the inner cooling oil cavity is coked is reduced.

The invention discloses a method for improving impact toughness of aluminum-containing ultrahigh-strength steel. The method comprises the following steps: forging an aluminum-containing ultrahigh-strength steel cast ingot; carrying out two-stage hot rolling on the forged ultrahigh-strength steel, and carrying out water cooling treatment after hot rolling; the hot-rolled ultrahigh-strength steel is annealed at the annealing temperature of 800 + / -50 DEG C, heat preservation is conducted for a period of time, furnace cooling is conducted to 600 + / -50 DEG C, and discharging and air cooling are conducted; the ultrahigh-strength steel is subjected to solid solution and aging treatment, the solid solution process comprises the steps that a heat treatment furnace is heated to 950-1000 DEG C for charging, heat preservation is conducted for 30-40 min, then oil cooling is conducted, the aging process comprises the steps that heat preservation is conducted for 55-65 min at the temperature of 500-550 DEG C, and then air cooling is conducted. The technology is scientific and reasonable, the toughness of the aluminum-containing ultrahigh-strength steel is greatly improved while the strength of the ultrahigh-strength steel is guaranteed through the combination of two-stage rolling and the reasonable heat treatment technology, and therefore the service safety of the aluminum-containing ultrahigh-strength steel is improved.

The utility model discloses a heat dissipation structure for an oil cooling loop on the surface of a stator core of an oil cooling motor, which belongs to the technical field of oil cooling motors and comprises an end face punching sheet, a middle punching sheet B is welded on the upper end face of the end face punching sheet, and a plurality of groups of middle punching sheets A are welded on the upper end face of the middle punching sheet B. According to the utility model, through the arrangement of the middle punching sheet A, the middle punching sheet B and the end surface punching sheets, the three groups of punching sheets are welded into the motor stator iron core, and the corresponding oil passing grooves are arranged on the outer surfaces of the three groups of punching sheets, so that cooling oil can be fully contacted with a motor stator, and the cooling effect is improved. According to the utility model, the middle punching sheet A and the middle punching sheet B are welded and fixed in a staggered manner, so that the sprayed cooling oil can cover the surface of the stator in a Z shape in a large range, the contact area between the cooling oil and the stator is increased, and the heat dissipation efficiency of the stator is further improved.

The utility model relates to the technical field of oil cooling motor structures capable of rapidly reducing oil temperature, and discloses an oil cooling motor structure capable of rapidly reducing oil temperature, which comprises a bottom plate and a motor main body, a rapid oil temperature reducing assembly is arranged at the top of the bottom plate, and the rapid oil temperature reducing assembly comprises an oil pump, a circulating pump, a fan frame and radiating fins. The oil pump is connected with an oil tank through an input pipe, the oil pump is connected with a cooling oil disc through an output pipe, and through the arrangement of the rapid oil temperature reducing assembly, a worker starts the oil pump, pumps cooling oil from the oil tank and injects the cooling oil into the cooling oil disc, the cooling oil disc is attached to the outer wall of the motor body, operation heat is absorbed, the motor is prevented from being overheated, and stable operation is guaranteed; the circulating pump pumps out hot oil from the cooling oil tray and feeds the hot oil into the heat dissipation pipe, the heat dissipation fins on the heat dissipation pipe increase the heat dissipation area and cooperate with the fan in the fan frame to accelerate heat dissipation, the cooled oil returns to the oil tank through the return pipe, efficient circulation of the cooling oil is achieved, and the motor is continuously cooled.

The invention provides a new energy automobile driving motor stator oil cooling structure, and relates to the technical field of new energy automobile driving motors. An oil cooling heat dissipation part is mounted at the front end of the outer part of the connecting mounting part; a driving control part is mounted at the top of the connecting mounting part and is used for rotating the oil cooling heat dissipation part; a movable positioning part is mounted on the connecting and mounting part and is used for positioning the connecting and mounting part; two groups of anti-loose limiting parts are mounted on the connecting and mounting part and are used for ensuring the stability of the connecting and mounting part during use; when the circulating pump works, cooling oil between the two corresponding rectangular separation strips can be completely discharged basically, and it is guaranteed that the cooling oil in the motor shell can be fully circulated; the problem that the suction position of cooling oil cannot be accurately controlled during cooling oil circulation due to the lack of a cooling oil separation structure generally is solved.

A lubricating oil pipeline forming a U-shaped channel and a refrigerant containing cavity surrounding the pipeline are arranged in a box body, a refrigerant inlet is formed in the bottom of the refrigerant containing cavity, and a refrigerant outlet is formed in the top of the refrigerant containing cavity. A refrigerant inlet and an oil inlet section of the U-shaped channel are arranged on the same side, and a refrigerant outlet and an oil outlet section of the U-shaped channel are arranged on the same side, so that a heat exchange mode that refrigerants and lubricating oil flow reversely in a high-temperature area and flow downstream in a low-temperature area is formed; heat exchange fins are arranged on the outer wall of the U-shaped channel in the circumferential direction. A porous ceramic area used for adsorbing bubbles can be arranged on the inner side wall of the box body. Through countercurrent flow heat exchange of the U-shaped pipeline, the heat exchange efficiency is improved, the temperature of lubricating oil can be stably controlled to be smaller than or equal to 40 DEG C, the problem of lubrication failure caused by too high oil temperature of the disc separator is solved, and therefore the reliability of the disc separator under long-term high-load operation and the service life of a bearing are guaranteed.

The invention provides a composite immersed cooling liquid as well as a preparation method and application thereof. Comprising a dispersion phase, a continuous phase, an emulsifier and an additive, the dispersion phase is fluorine cooling liquid, the continuous phase is oil cooling liquid, the emulsifier is one or more compounded nonionic surfactants, and the HLB value of the emulsifier is 4-9 or 10-18; according to the composite immersed cooling liquid disclosed by the invention, the advantages of high heat conductivity of the oil phase and high safety (non-combustibility and high dielectric strength) of the fluorine phase are ingeniously combined, and 1 + 1gt is realized; 2, the effect is achieved; the oil phase with high cost performance is used for replacing most expensive fluorine phases, and the overall material cost is reduced by 40%-60% compared with that of pure fluorine cooling liquid; the nano-scale microemulsion is formed through the specific emulsifier, the fundamental problem that a traditional mixed solution is inevitably layered is solved, and the shelf life is long; the cooling liquid disclosed by the invention has good material compatibility, and the problem that a pure fluorine liquid swells some sealing materials is avoided.

The invention relates to the technical field of motors, and discloses a multi-layer winding structure of a high-power-density flat wire oil-cooled motor, which comprises a rotating shaft, a rotor core, a stator core, a winding component and a motor shell which are concentrically sleeved from inside to outside, and is characterized in that the winding component comprises a plurality of winding bodies which are arrayed and nested in the stator core; the front and rear ends of the winding component are respectively provided with a welding end winding and a hairpin end winding. According to the multi-layer winding structure of the high-power-density flat wire oil-cooled motor, a multifunctional winding cooling structure is formed by the first cross flow groove, the second cross flow groove, the two cooling flow guide assemblies and the plurality of annular cooling grooves; after being combined with a flat wire oil cooling motor formed by a rotating shaft, a rotor iron core, a stator iron core, a winding part and a motor shell and a circulating pump transmission module for use, cooling oil can be guided and conveyed to cover most structures of the winding part in a plurality of annular cooling grooves; and the two cooling diversion assemblies comprehensively spray and cool the structures at the two ends of the winding component in a rotary output mode.

The invention relates to the technical field of metal heat treatment, in particular to a silicon alloy steel bearing ring high-temperature salt bath quenching process for a high-temperature load environment, which comprises the following steps: S1, carrying out surface sand blasting treatment on a silicon alloy steel bearing ring; s2, stepped heating-heat preservation-cooling treatment is carried out, and the uniformly austenitized ferrule is obtained; s3, the uniformly austenitized ferrule is immersed in a composite salt bath; s4, staged cooling treatment of an air cooling stage and an oil cooling stage is conducted in sequence; s5, the martensite matrix ferrule is subjected to subzero treatment and staged heating; and S6, multi-stage tempering treatment with different temperature gradients is conducted, and the final high-temperature bearing ring is obtained. Through the combined process of stepped austenitizing, composite salt bath ultrasonic quenching, graded cooling, deep cooling and multi-stage tempering, homogenization and stabilization of the structure of the bearing ring are achieved, and the dimensional stability and the tempering resistance of the bearing ring in the high-temperature load environment are improved.

The utility model discloses a high-power motor structure with multiple cooling modes for an aerocar. The high-power motor structure comprises a motor and a cooling system, the motor comprises a stator assembly, a rotor assembly and a supporting assembly. The stator assembly and the rotor assembly are rotationally connected through the supporting assembly. The stator iron core is fixed on the outer peripheral surface of the stator bracket in a surrounding manner; the winding is wound in a tooth groove of the stator iron core; the permanent magnets are sequentially and fixedly arranged on the inner wall of the rotor shell; the upper end cover and the lower end cover are respectively fixed at the upper and lower ends of the rotor shell; in the supporting assembly, a hole is formed in the middle of a stator support, a rotating shaft penetrates through the hole and is rotationally connected with an inner bearing of the stator support, the upper end of the rotating shaft is fixedly connected with an upper end cover through a coupling flange, and the lower end is rotationally connected with the stator support through an end cover bearing. The motor dissipates heat through three cooling modes of a water cooling structure, an oil cooling structure and an air cooling structure. According to the utility model, three cooling modes of air cooling, water cooling and oil cooling are integrated, so that the temperature rise of the motor is greatly reduced, and the motor can output higher power.

The invention relates to a self-circulation running water vapor compressor performance test system and test method. Specifically, the system comprises a steam input system, a steam pressurization system, a buffer and storage system, a steam recovery system, an intelligent control system, an optional steam compressor water replenishing system, an optional condensate water recovery system and an optional internal oil cooling system. According to the self-circulation running water vapor compressor performance testing system, only a small amount of external steam needs to be input in the initial starting stage, and after the stable state is achieved, complete self-circulation running can be achieved. The steam consumption is reduced, the overall economical efficiency and the energy utilization rate of the system are improved, and the operation reliability is high.

The utility model relates to the field of conducting rings, in particular to a conducting ring for an oil cooling shaft, which comprises a conducting ring casting, the conducting ring casting is of an annular structure, the inner wall of the conducting ring casting is fixedly connected with a mounting ring, carbon fiber yarns which are arranged at equal intervals are mounted on the mounting ring, and shaft static electricity is transmitted to the conducting ring casting through the carbon fiber yarns. According to the utility model, shaft static electricity generated by the motor rotating shaft is transmitted to the conductive ring casting by using the carbon fiber yarns and is further transmitted to the motor shell, so that the shaft static electricity is effectively prevented from being accumulated on a bearing or other conductive parts, the risks of local overheating and bearing abrasion are reduced, the operation reliability of the motor is remarkably improved, and the service life of the motor is remarkably prolonged. Through the arrangement of the rubber oil baffle plate, not only is excessive engine oil prevented from being in contact with the carbon fiber yarns, but also the rubber oil baffle plate is convenient to replace and clean through the detachable locking nut and positioning block structure, and the maintenance cost and time are reduced.

The utility model discloses an air-cooled engine body which comprises a base and a box body, the bottom face of the base extends downwards to form an air guide plate installation hole, the air guide plate installation hole is used for installing an air guide plate, the lower end of the air guide plate installation hole extends to the position below the base, and the base and the air guide plate form a cooling air channel. According to the engine base, the problems that an existing engine base is low in heat dissipation efficiency and affects engine oil cooling are solved, the air guide plate installation hole is formed in the base in a downward extending mode, the air guide plate is fixed to the lower end of the air guide plate installation hole, the air guide plate is fixed to the lower end of the air guide plate installation hole, and the air guide plate is fixed to the lower end of the air guide plate installation hole. A cooling air channel is formed between the base and the air deflector, airflow is introduced into the cooling air channel through the lower ventilation holes, the heat dissipation capacity of the base is improved, and the cooling speed of engine oil in the engine body is increased.