3702 results about "Oil can" patented technology

The invention discloses a dispersed transformer cooling system and method, and relates to the technical field of transformers, integration supporting rods are mounted on the inner side of a transformer integration box through fixing bolts, a treatment transformer box is welded to the top ends of the two integration supporting rods, a hollow supporting rod is clamped to the inner side of the treatment transformer box, and a transformer core is mounted at the top end of the hollow supporting rod; the device effectively solves the problems that in the prior art, due to the fact that oil cannot circulate, heat is concentrated at the position of a transformer core, the internal temperature cannot be homogenized, only external air cooling treatment is conducted, the heat removal efficiency is poor, meanwhile, oil overflow and oil liquid level control are utilized, and the heat removal efficiency is poor. And the heat exchange area is increased, and the influence of oil on the operation environment and the operation stability is avoided, so that the heat exchange area is increased, the heat exchange speed is increased, the overall temperature is balanced, and stable operation treatment of the transformer is realized.

The invention provides an intelligent suspension conveying device, one support is provided with a lubricating assembly used for automatically spraying lubricating oil to conveying equipment, the lubricating assembly is provided with an anti-dripping assembly used for automatic wiping after the lubricating oil is sprayed, and the intelligent suspension conveying device relates to the technical field of intelligent suspension equipment. According to the intelligent suspension conveying equipment, the lubricating assembly is arranged below the intelligent suspension conveying equipment, the function of regularly and automatically spraying lubricating oil to transmission equipment of the intelligent suspension conveying equipment is achieved, and the convenience and efficiency of equipment lubricating are improved. After spraying, redundant lubricating oil can fall into the oil receiving box to be effectively collected, random dripping of the lubricating oil is avoided, and therefore the working environment is kept clean and tidy. In the spraying process, the transmission equipment does not stop and continuously rotates, in the rotating process, the anti-dripping assembly can wipe redundant lubricating oil on the transmission equipment, the risk that residual oil on the transmission equipment drips to the ground is thoroughly eliminated, and the cleanliness and safety of the equipment are further improved.

The invention relates to the technical field of tool magazines, and discloses a tool pouch turnover device of a chain belt type tool magazine, which comprises a frame body, a driving chain belt is arranged in the frame body, a plurality of swing plates are equidistantly arranged on the driving chain belt, one end of each swing plate is fixedly connected with a tool pouch, and the other end of each swing plate is provided with a tool reversing wheel. A tool reversing air cylinder is arranged outside the driving chain belt, a tool reversing block is fixedly connected to the telescopic end of the tool reversing air cylinder, a storage box is arranged on one side of the tool reversing air cylinder, lubricating oil is stored in the storage box, an oil squeezing box is arranged between the storage box and the tool reversing air cylinder, and a connecting pipe is communicated between the top end of the oil squeezing box and the bottom end of the storage box. According to the device, lubricating oil can be automatically sprayed to the tool reversing wheel clamped in the tool reversing block, the tool reversing wheel and the inner wall of the tool reversing block are lubricated, the lubricating oil does not need to be manually smeared, the friction force between the tool reversing wheel and the tool reversing block is greatly reduced, and clamping or abnormal sound is avoided.

The invention discloses a bearing lubricating oil chamber structure for a double suction pump, relates to the field of pumps, and abandons the situation that a traditional exhaust valve releases oil mist pressure, blades rotate to form a right high-pressure area when a customized bearing rotates, the bottom end of the customized bearing is locally immersed in oil, oil is uniformly carried during rotation and heat is increased, and air in a lubricating chamber is injected into an oil can through the pressure difference of the two sides of the blades; compared with a traditional mode, the lubricating device has the advantages that the uniformity is higher, repeated friction and atomization of the oil can be avoided, the oil enters the oil can along with airflow along with continuous adding of the oil in the lubricating chamber and rising of the liquid level, and the lubricating effect is better. And the oil is cooled and circulated in the return pipe after being filtered by the kettle cover, so that the oil can be continuously and circularly filtered, the reliability of the oil is ensured, the cooled oil can lubricate the bearing and take away heat, long-time high-speed use is met, the oil loss is small, the operation environment of the bearing is stable, and the overall maintenance period is greatly prolonged.

The invention belongs to the technical field of automobile shock absorber electromagnetic valves, and particularly relates to a hydraulic shock absorber electromagnetic valve for vehicle testing, which controls whether a liquid inlet hole is directly communicated with a main liquid cavity or not through an elastic valve plate, and controls whether the main liquid cavity is communicated with a liquid outlet hole or not through a pressurizing seat. The pressure of oil entering the liquid inlet must overcome the tension of the elastic valve block, the supporting force of the elastic supporting piece can push the elastic valve block and the pressurizing base to move in the direction away from the main valve body, then the oil can flow back to the shock absorber through the liquid outlet hole, and the resistance borne by the oil in the electromagnetic valve is increased. And large damping force is provided for the vibration damper. By arranging the pressurizing cavity, when the electromagnetic coil is powered on, the pilot valve element blocks the overflow hole, oil in the overflow hole applies pressure to the pressurizing base, the oil does not easily push away the pressurizing base and the elastic valve block in the direction away from the main valve body, and oil resistance is further increased. The electromagnetic valve consumes less electric energy, and the vehicle research and development test efficiency is improved.

The invention relates to the technical field of quenching, in particular to a high-toughness steel wire production quenching furnace and a quenching process thereof. The quenching furnace comprises a furnace body, a heating chamber and a cooling chamber are arranged in the furnace body, a blocking mechanism is arranged between the cooling chamber and the heating chamber, a conveying mechanism is arranged in the cooling chamber, a mounting frame is arranged at the bottom of the cooling chamber, and a quenching oil tank used for storing quenching oil is arranged in the mounting frame. A stirring mechanism and a reciprocating mechanism are arranged in the quenching oil tank; oil in the quenching oil tank flows through up-down reciprocating motion of the pressing plate, temperature layering of the upper layer and the lower layer of the oil is broken, heat exchange is promoted, the temperature of the oil is more uniform, when the pressing plate reciprocates up and down and ascends, the through holes are opened, the oil in the upper layer can smoothly pass through, and when the pressing plate descends, the through holes are closed. Therefore, the speed of oil in the lower layer flowing to the upper layer in the oil tank is increased, convection of oil in the quenching oil tank is more sufficient, and the temperature difference between the upper layer and the lower layer is further reduced.

The invention discloses an axial ring lower lubricating structure and an aero-engine with the axial ring lower lubricating structure. The axial ring lower lubricating structure comprises a switching oil distribution device, a connecting bearing arranged on the outer circle of the switching oil distribution device and a plurality of oil supply nozzles. The first end of the switching oil distribution device is provided with an oil distribution cavity, the spline section behind the first end of the switching oil distribution device is provided with an inner spline, and an inclined oil conveying channel set and an axial oil conveying channel set are further arranged in the spline section. The oil supply nozzles are used for spraying lubricating oil into the oil distribution cavities, and the oil distribution cavities are used for distributing the lubricating oil so that the lubricating oil can correspondingly enter the oblique oil conveying channel set and the axial oil conveying channel set under the rotating centrifugal effect, and the lubricating oil in the oblique oil conveying channel set can continue to enter the connecting bearing for lubrication under the rotating centrifugal effect. And lubricating oil in the axial oil conveying channel group continues to enter the inner spline for lubrication under the rotating centrifugal effect. According to the structure, the whole lubricating oil system is compact in flow path structure, high in reliability, high in lubricating efficiency and high in function integration degree, and the lubricating and cooling problems of high-DN-value bearings and splines of aero-engines are effectively solved.

The frequency converter shell stamping device particularly relates to the technical field of frequency converter production and comprises a machine shell, a plurality of machine legs are fixedly connected to the lower end of the machine shell, a containing plate is fixedly connected to the inner surface of the machine shell, an upper die is fixedly installed at the lower end of a hydraulic cylinder, and a conveying and oil spraying assembly is arranged on the inner surface of the machine shell. A cooling supporting assembly is arranged on the inner surface of the lower mold and the inner surface of the upper mold. According to the frequency converter shell stamping device, by arranging the oil spraying mechanism, lubricating oil is sprayed to the upper die and the lower die, meanwhile, an aluminum alloy plate in the moving process can be sprayed, friction can be effectively reduced, abrasion between the dies and materials in the stamping process is reduced, the service life of the dies is prolonged, and meanwhile, the production efficiency is improved. And the lubricating oil can improve the stability in the stamping process, reduce the risks of material deformation, wrinkles and cracks, and ensure the surface quality and dimensional precision of the aluminum alloy plate.

The utility model discloses polishing equipment facilitating oil-water separation, and belongs to the technical field of polishing equipment. The polishing equipment comprises a base, an X-axis tray extending in the transverse direction is arranged on the base, a Y-axis tray can be installed on the X-axis tray in a sliding mode in the transverse direction, a workbench can be installed on the Y-axis tray in a sliding mode in the longitudinal direction, and a polishing clamp assembly station is arranged on the workbench; cross beams which are parallel to the X-axis tray and are distributed at intervals in the longitudinal direction are arranged on the base and located on one side of the X-axis tray, the cross beams are used for assembling grinding disc assemblies, the area, located between the cross beams and the X-axis tray, of the upper surface of the base is sunken downwards to form a conical water receiving disc, and the X-axis tray and the Y-axis tray are sunken downwards to form conical oil collecting grooves. Polishing liquid falling in the polishing process is collected through the water pan, lubricating oil is collected through the oil collecting groove, and therefore the polishing liquid and the lubricating oil can be effectively prevented from being mixed together, and pollution of the polishing liquid and corrosion of a machine table are avoided.

The invention relates to the technical field of gear shaft machining equipment, and discloses new energy direct drive motor gear shaft machining equipment and a machining technology.The new energy direct drive motor gear shaft machining equipment comprises a quenching pool and a lifting frame, the lifting frame is located above the quenching pool, and the quenching pool is filled with quenching oil; the bearing frame and the gear shaft body are driven by the driving assembly to rotate in the quenching oil in a reciprocating mode, the tearing effect of inertia force on a covering film on the surface of the gear shaft body is further enhanced through the rotation, more importantly, in the rotating process, the contact state of the surface of the gear shaft body and the quenching oil can be continuously changed, and the gear shaft body is prevented from being damaged. The gear shaft body is alternately exposed in the high-temperature oil area and the low-temperature oil area, and the alternate exposure mode can always ensure that the workpiece gear shaft body can be in contact with low-temperature quenching oil, so that the problem that the temperature of the quenching oil rises due to long-time contact with a high-temperature workpiece is effectively avoided, and a good quenching effect is ensured.

The invention discloses a synchronous lamination injection mold, and relates to the technical field of injection molds, the synchronous lamination injection mold comprises a fixed mold seat plate, the right side of the fixed mold seat plate is sequentially provided with two first cushion blocks, a fixed mold plate, a first mold cavity, a second mold cavity, a movable mold plate, two second cushion blocks and a movable mold seat plate; according to the device, the corrosion degree and the damage degree between the mold opening rack and the mold splitting gear can be observed in real time by controlling the CCD camera to be started at first, so that timely alarm and maintenance are facilitated, and then the inner push plug can be driven to push lubricating oil by controlling the oil conveying air cylinder to be started; at the moment, the liquid conveying pipe can convey the lubricating oil to the joint of the mold opening rack and the mold splitting gear in multiple directions, so that the lubricating oil can be uniformly conveyed to the surface of the moving mold opening structure, and the surfaces of the rack and the gear are always in an optimal lubricating state by accurately controlling the conveying amount of the lubricating oil; and the fluency of the left and right double-layer templates during mold opening is effectively improved.

The present invention discloses an on-line gas monitoring device for transformer oil, which relates to the field of gas monitoring in transformer oil and includes a transformer body, a pump, an oil inlet pipe, a fixed box and an oil return pipe. An electric telescopic rod is fixed on the upper end face of the transformer body. This on-line gas monitoring device for transformer oil adopts a negative pressure suction structure, which can quickly precipitate the dissolved gas in the isolation oil. With the function of a laser chromatograph, the precipitated gas can be detected and analyzed to determine whether there is a fault in the transformer. Specifically, the oil can enter the fixed box through the pump and the oil return pipe. With the cooperation of the electric telescopic rod, the fixed rod, the U-shaped block, the piston and the fixed cavity, the gas in the oil in the fixed box can be quickly precipitated. After the air extraction is completed, when the piston returns to its original position, with the cooperation of the partition plate, the first spring, the fixed plate and the sealing head, the gas in the fixed cavity can enter the laser chromatograph, thus realizing the detection and analysis of the gas.

The utility model discloses a hydraulic control valve which comprises a valve body, an oil pump and a conversion check valve. A gear shifting oil cavity is formed in the valve body, a slidable gear shifting piston is installed in the gear shifting oil cavity, and the moving positions of the gear shifting piston comprise the low-speed gear position and the high-speed gear position. Working oil passing through the low-gear oil inlet can apply pressure to one end of the gear shifting piston, and the engine can apply pressure to the other end of the gear shifting piston through the oil pump. The shift piston is controlled to move through pressure at two ends of the shift piston; when the gear shifting piston is kept at the high-gear position, working oil can enter the high-gear oil inlet of the gearbox only through the high-gear oil outlet by switching the check valve. By means of the arrangement, the defects of an original hydraulic downshift control mechanism are overcome, interlocking of gears and the rotating speed of an engine is achieved, and it is guaranteed that the gear shifting process is stable and smooth, and continuous power output is achieved.

The utility model provides an automatic oil coating device for the spinning process of automobile wheels, which comprises a box body, an oil spraying plate and a tall stand, the box body is fixed on the tall stand, one side surface of the box body is an open surface, the bottom surface of the box body is provided with an oil discharge port, the bottom surface in the box body is provided with a support column for fixing the oil spraying plate above the oil discharge port, and the oil spraying plate is fixed on the support column. The bottom face of the oil injection plate is fixed to the supporting column, a plurality of nozzles communicated with an oil cavity in the oil injection plate are evenly distributed on the upper surface of the oil injection plate, and an oil injection pipe communicated with the oil cavity is arranged on the bottom face of the oil injection plate and extends out of the box body. An oil discharge pipe is connected to the oil discharge outlet and located below the box body. The device has the beneficial effects that lubricating oil can be sprayed on the contact surface of the wheel and the mold in advance, so that an oil film is attached to the surface, and the adhesion of the wheel and the mold is prevented; the device has the advantages of simple structure, convenience in use, low processing cost, high efficiency and the like.

The utility model discloses an automobile windscreen wiper output shaft detection mechanism which comprises a positioning plate, a first positioning disc is fixedly installed on one side of the top end of the positioning plate, a second positioning disc is fixedly installed on the top end of the first positioning disc, and a fixing lining is fixedly installed in the positioning plate. According to the automobile windscreen wiper output shaft detection mechanism of the utility model, the parts are circular parts, only the cylindrical grinding is needed to match the clearance, the flat grinding is needed to match the sliding surface to ensure the luminosity and the sliding flexibility, the grinding by a bench worker is not needed during the final assembly, the whole processing technology is very simple, the production efficiency is high, and the cost is low. The cost is low; a closed ring is formed between the positioning discs, lubricating oil can be added without flowing out, rustiness between parts is avoided, and smooth sliding is guaranteed; the detection mechanism is high in applicability and low in cost, is used in a production field, and has a great reference value in the aspect of detection and popularization of output shafts of other front and back scraping products.

The invention relates to an oil-soluble viscosity reducer composition and a preparation method and application thereof.The oil-soluble viscosity reducer composition is formed by compounding alkyl pyridine and coker diesel oil and can rapidly permeate into thick oil, the viscosity of the thick oil is greatly reduced, and the fluidity of the thick oil is improved. When the oil-soluble viscosity reducer is used in heavy oil reservoir exploitation, storage and transportation processes, the use amount of thin oil for blending heavy oil with thin oil can be saved, the cost of the oil-soluble viscosity reducer is reduced, efficient exploitation, gathering and transportation of the heavy oil reservoir are guaranteed, cost-reducing and efficiency-increasing exploitation of the heavy oil reservoir is realized, and high-added-value comprehensive utilization of coker diesel oil is facilitated.

The invention discloses a stator structure of a motor and the motor, and relates to the technical field of motors, the stator structure of the motor comprises a stator iron core, the stator iron core is annular, a plurality of cooling oil channels are formed in the stator iron core, the plurality of cooling oil channels are sequentially arranged at intervals along the circumferential direction of the stator iron core, the cooling oil channels comprise yoke part oil channels and tooth part oil channels, and the yoke part oil channels are communicated with the tooth part oil channels. The yoke part oil ducts and the tooth part oil ducts extend in the axial direction of the stator iron core, the yoke part oil ducts and the tooth part oil ducts are arranged in the radial direction of the stator iron core, the yoke part oil ducts and the tooth part oil ducts are communicated, and the oil inlet and the oil outlet of the same cooling oil duct are located at the same end of the stator iron core in the axial direction of the stator iron core. According to the stator structure, the cooling oil can directly cool the yoke part and the tooth part of the stator core, the heat dissipation capability of the stator core can be improved, the stator core can be cooled uniformly, the heat dissipation efficiency of the stator core can be improved, the cooling effect of the stator core can be improved, and the working efficiency of a motor can be improved.

The invention relates to a tool changing spindle with a lubricating, cooling and self-supplying structure, which comprises a tool changing spindle main body and an oil return shell mounted at the top of the tool changing spindle main body, a rotating shaft is rotatably mounted in the tool changing spindle main body through a first bearing, and a cooling cavity is formed in the side wall of the tool changing spindle main body; a self-lubricating unit is arranged in the tool changing main shaft main body; according to the tool changing spindle, the rotating shaft is linked with the self-lubricating unit, lubricating oil is promoted to conduct self-circulation supply type flowing lubricating treatment in the tool changing spindle body, internal particle impurities are intercepted and cleaned, and the cleanliness of the lubricating oil is guaranteed so that the efficient lubricating effect can be achieved; and the cutting fluid is discharged through pressurization of the cutting fluid in the cooling cavity and the cooling seat, so that not only can the tool changing main shaft main body be subjected to comprehensive wrapping type cooling treatment, but also heat carried in the circulating flowing lubricating oil can be subjected to heat exchange cooling treatment, and then the effect of combining efficient and comprehensive lubricating and cooling is achieved.

The present invention discloses an intelligent multi-parameter oil quality monitoring device, comprising: a housing with a detection end and an output end at both ends, a resonant cavity and a detection cavity are arranged inside the housing, a particle detection channel and an oil port are provided on the housing; a monitoring component, including a sensing circuit module, a tuning fork resonance sensor, a temperature sensor and a microfluidic chip, the tuning fork resonance sensor includes a quartz tuning fork, the microfluidic chip includes a capacitor, and the capacitor includes electrode plates. This intelligent multi-parameter oil quality monitoring device integrates the temperature sensor, the tuning fork resonance sensor and the microfluidic chip inside the housing. By installing the housing on the oil pipe, multiple parameters such as the viscosity, dielectric constant, temperature, abrasive particle size, density, etc. in the oil can be monitored simultaneously, so as to accurately judge the oil quality, avoid false alarms, and perform data transmission through the sensing circuit module, with high integration, small volume and strong anti-interference ability.

The utility model provides a multi-stage oil cylinder which comprises an outer cylinder barrel and an end cover, and the end cover is provided with a rodless cavity oil inlet channel and a rod cavity oil inlet channel. The outer cylinder barrel is provided with an external oil pipe, one end of the external oil pipe communicates with the rod cavity oil inlet channel, and the other end of the external oil pipe communicates with a rod end inner cavity of the outer cylinder barrel. At least two stages of telescopic assemblies are arranged in the outer cylinder barrel, each telescopic assembly comprises a piston and an inner cylinder barrel, and one end of each inner cylinder barrel is connected with the upper-stage piston; the upper-stage piston is provided with a rodless cavity oil passing channel which is used for communicating rodless cavities between two adjacent stages of pistons; the upper-stage piston is further provided with an oil passing piece with a first rod cavity oil passing channel and a built-in oil pipe, one end of the built-in oil pipe is communicated with the oil passing piece, and the other end of the built-in oil pipe penetrates through the lower-stage piston; one end of the next-stage built-in oil pipe sleeves the other end of the previous-stage built-in oil pipe, and a gap is formed between the next-stage built-in oil pipe and the previous-stage built- The first rod cavity oil passing channel of each stage is communicated with the rod cavity of the corresponding stage; oil can be prevented from entering from the piston rod head.

The invention discloses a high-performance sealing mechanism and sealing method for an oil cylinder of a hydraulic excavator, and relates to the technical field of oil cylinder machining. According to the high-performance sealing mechanism for the oil cylinder of the hydraulic excavator, through the linkage design of the annular bearing plate and the driving rod, the contact pressure between the sealing piece and the inner wall of the cylinder barrel is automatically adjusted and strengthened through the hydraulic oil pressure, and when the hydraulic oil pressure rises, the annular bearing plate pushes the driving rod; the top plate tightly abuts against the reinforcing sealing piece, the self-adaptive effect that the larger the pressure is, the stronger the sealing performance is is achieved, and therefore the good sealing effect can be kept in the environment that the pressure of the oil cylinder changes rapidly. The two sides of the piston body are each provided with a structure for self-adaptively changing the contact pressure between the reinforcing sealing piece and the inner wall of the oil cylinder according to the hydraulic oil pressure change, so that the hydraulic oil can achieve the effect of enhancing the sealing performance through hydraulic oil power in any direction. The combined design of the basic sealing piece and the reinforced sealing piece forms a double-sealing barrier.

The invention relates to a hydraulic valve, particularly provides a hydraulic valve assembly, and aims to solve or relieve the problem of pressure difference between an oil inlet cavity and an oil outlet cavity of a hydraulic valve under a part of working conditions in the prior art. In order to achieve the purpose, the hydraulic valve assembly comprises a main valve body, a main valve element assembly, a control oil cylinder, a control piston and a guide assembly, and the main valve body comprises a main oil hole and a main valve element hole; the main valve element assembly is inserted into the main valve element hole, and the main valve element assembly and the main valve element hole form a valve line sealing structure. The control oil cylinder is positioned above the main valve body; the control piston is installed in the main valve element assembly and extends into the control oil cylinder together with the main valve element assembly. The guide assembly is arranged above the control oil cylinder and used for controlling the movement direction of the main valve element assembly to form different working states. All the parts are matched with one another so that external high-pressure oil can be used for pushing the control piston to open the main valve element assembly. Under the condition that the technical scheme is adopted, the residual pressure difference is eliminated through verification of a test bed.

The application relates to the technical field of metal stamping equipment, in particular to a stamping equipment for automobile metal parts, which comprises an upper die, a lower die, an oil injection hole and a material discharging hole, the upper die can move along the vertical direction, the upper die comprises an upper draw die and an upper flanging die, and the upper flanging die is slidably arranged outside the upper draw die. The lower edge of the upper draw die, the upper edge of the lower draw die, the lower edge of the inner side of the upper flanging die and the upper edge of the inner side of the lower flanging die are provided with chamfers, so that the cavity area is formed above and below the flanging position of the blank, more lubricating oil can be accommodated above and below the flanging area of the blank, and then more lubricating oil is sprayed to the flanging position of the blank in the cavity area through the oil injection assembly, so that the friction heat generated in the flanging process of the blank can be fully absorbed by the lubricating oil.

The invention relates to the technical field of pipe bending machines, and discloses petroleum pipeline thick-wall hot pipe bending equipment with a medium-frequency induction heating device. The petroleum pipeline thick-wall hot pipe bending equipment comprises a core rod body, the core rod body comprises a guide rod connected with a rack and a guide column arranged at the tail end of the guide rod, and the tail end of the guide column is provided with at least two supporting joints which are in spherical hinge joint; elastic edges are arranged on the edges of the supporting joints and filled with hydraulic oil. According to the device, through coaxial and synchronous rotation matching of the wheel die and the clamping die, the guiding and limiting effects of the guiding die and the internal supporting design of the core rod body, a cooperative machining mechanism of external fixing, external guiding and internal supporting is formed, and the problems of axial displacement and radial deviation in the bending process of the thick-wall petroleum pipeline are effectively avoided. In the core supporting structure, multiple sets of supporting joints capable of flexibly rotating can be attached to the inner wall in a self-adaptive mode along with the bending radian of the pipeline, and a dynamic supporting system composed of elastic edges and hydraulic oil can dynamically adjust the supporting force according to the bending angle.

The utility model discloses a squeezing device for feed grade duck oil production and processing, and relates to the field of duck oil processing, the squeezing device comprises a base, the upper end of the base is fixedly connected with an arc-shaped plate, the lower end of the arc-shaped plate is provided with a hydraulic rod, the lower end of the hydraulic rod is fixedly connected with a connecting block, and the lower end of the connecting block is fixedly connected with a fixed seat; a sliding block is arranged in the fixed seat; the pressing device has the advantages that the spring, the sliding block and the clamping rod are matched with the mounting rod and the clamping hole in the mounting rod, so that the pressing plate can be quickly assembled and disassembled, the pressing plate can be replaced when being damaged, the downtime of equipment is shortened, and meanwhile, the overall pressing efficiency is also improved; according to the device, the position of a filter screen can be adjusted through a moving block, a guide block, a motor, a lead screw and other assemblies, then disintegrating slag in a filter box can be fished out, the cleaning difficulty of workers is reduced, meanwhile, duck fat can be filtered again through the filter screen, and the squeezing quality is further improved.

The invention discloses a multi-sensor fusion transformer insulating oil aging degree evaluation method. The method comprises the following steps: establishing an insulating oil aging degree comprehensive experiment platform; the method comprises the following steps: testing different aging degrees of transformer insulating oil through an insulating oil aging degree comprehensive experiment platform, and obtaining dielectric constants, pH values and light transmittance of the insulating oil under different aging degrees through multiple sensors; determining the weights of the dielectric constant, the pH value and the light transmittance by adopting an entropy method; and evaluating the aging degree of the transformer insulating oil based on the dielectric constant, the pH value, the light transmittance data and the weight thereof. According to the invention, a plurality of sensors are adopted to collect data and fuse the data, so that the aging degree of the transformer insulating oil can be accurately evaluated.

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 provides a high-speed gear box capable of cooling quickly, which relates to the field of high-speed gear boxes, and comprises a box body assembly, the box body assembly comprises a lower shell, an upper shell and an oil injection port, the lower shell and the upper shell are combined to provide protection for a gear set, and the oil injection port is used for adding lubricating oil. A cooling assembly is arranged on the back face of the box body assembly and comprises a frame, a finned tube radiator and a fan, the finned tube radiator is used for cooling lubricating oil, and the fan is used for cooling the finned tube radiator; the cooling assembly, the circulating assembly and the filtering assembly are arranged, the lubricating oil can be filtered and cooled, the filtering assembly is used for filtering the lubricating oil, so that the finned tube radiator can be prevented from being blocked by oil sludge, and the lubricating oil can be cooled by the finned tube radiator; and the fan can cool the finned tube radiator, so that the cooling effect of the high-speed gearbox can be improved.

The invention provides a circuit breaker hydraulic mechanism fault detection device, and relates to the field of circuit breaker fault detection.The circuit breaker hydraulic mechanism fault detection device comprises a shell, the bottom of the shell is provided with a detection cavity, the top of the shell is provided with an installation cavity, and one side of the shell is provided with an oil inlet and an oil outlet which are communicated with the detection cavity; a partition plate is arranged in the middle of the mounting cavity, a first sleeve is rotationally mounted between the partition plate and the inner wall of the top side of the mounting cavity, and a plurality of spiral grooves are formed in the bottom of the first sleeve; through the arrangement of the first sleeve, the spiral groove, the rotating shaft, the detection plate, a pressure spring, a pressure sensor and other structures, the resistance borne by the detection plate when the detection plate rotates in hydraulic oil can be monitored in real time, so that the viscosity of the hydraulic oil is detected, the hydraulic oil is conveniently replaced in time when the viscosity of the hydraulic oil is too high, and the working efficiency is improved. And the conditions of serious efficiency loss, hydraulic mechanism faults and the like caused by over-high viscosity of the hydraulic oil are prevented.

The invention relates to the field of metal pressure machining, in particular to metal part machining cold heading forming equipment and a forming process thereof.The cold heading forming equipment comprises a cold heading machine body, a fixed die, a movable die, a supporting sleeve and an elastic film, and the fixed die and the movable die are arranged on the cold heading machine body in a face-to-face mode; the supporting sleeve is coaxially arranged at the end, close to the movable mold, of the fixed mold, the elastic film is coaxially arranged on the inner side of the supporting sleeve, the elastic film has elasticity and is in a tensioned conical barrel shape initially, the small end of the elastic film is connected with the fixed mold, and the large end of the elastic film is connected with the supporting sleeve so as to define an oil storage cavity with the supporting sleeve and the fixed mold. During forming, cooling lubricating oil in the oil storage cavity is extruded into the cavities of the fixed mold and the movable mold to provide lubricating cooling, after forming, the movable mold is far away from the fixed mold, negative pressure is formed between the movable mold and the fixed mold, and the cooling lubricating oil in the cavities is sucked out; extrusion lubrication and replacement of cooling lubricating oil can be completed once in each cold heading process, and the lubrication effect is improved.