3426 results about "Oil filter" patented technology

The invention discloses a hydroelectric oil filter fault diagnosis system and method based on blind source separation, and relates to the technical field of fault diagnosis, and the system comprises a data acquisition module, a self-adaptive preprocessing module, a diagnosis engine module, a digital twin model library and an application module. The data acquisition module synchronously acquires multi-source heterogeneous observation signals; the self-adaptive preprocessing module carries out preprocessing by adopting self-adaptive variational mode decomposition based on an intelligent optimization algorithm; the diagnosis engine module comprises a multi-physical-quantity deep fusion unit, a dynamic source number estimation unit and an online blind source separation unit, the multi-physical-quantity deep fusion unit performs deep fusion on heterogeneous data through a physical information self-encoder to generate a high-dimensional feature matrix, and the dynamic source number estimation unit adopts a three-layer layered structure to perform online estimation on the number of source signals; an independent component analysis algorithm driven by the running state of the on-line blind source separation unit; and a complete diagnosis process is realized. The problem that a traditional method is low in diagnosis precision under strong noise, multi-source coupling and dynamic working conditions is solved.

The invention relates to the technical field of oil filter control, in particular to an oil filter digital intelligent control system based on sensors, which comprises a fusion monitoring unit, an oil temperature control unit and a feedback regulation unit. The oil temperature control unit calculates the optimal heating rate and the target temperature range through a self-adaptive algorithm according to the environment and the initial temperature of oil, compares the optimal heating rate and the target temperature range with the actual oil temperature in the heating process, adjusts the heating power through pulse heating according to the result, judges the working load according to the specific heat capacity of oil and adjusts the frequency of a vacuum pump. And the feedback regulation unit evaluates the system stability based on the target operation frequency and the heating power of the vacuum pump, generates an optimization strategy and feeds back the optimization strategy to the oil temperature control unit, so that accurate oil temperature control is realized, the equipment stability and the energy utilization efficiency are improved, and efficient operation of the oil filter is guaranteed.

The invention discloses an intelligent operation and maintenance system, method and equipment for steam turbine lubricating oil and a storage medium, and relates to the technical field of industrial digital intelligent operation and maintenance. Zero loss and low delay of data are guaranteed through the data transmission module, and the data fault problem of traditional manual meter reading is solved; static parameters are converted into dynamic trend, residual life and abnormal early warning through a hybrid model of a visual cloud operation and maintenance module, and intelligent conversion from data to decision is realized; and the oil filtering execution module automatically responds to the instruction to complete closed-loop treatment from polluted oil liquid to clean oil liquid without manual intervention, so that real-time monitoring and intelligent analysis of the running state of the steam turbine are realized, an oil filtering system is automatically started when a set threshold value is reached, the oil liquid is ensured to be in a normal state, the maintenance cost is reduced, and the operation and maintenance efficiency is improved.

The utility model relates to the technical field of oil filtering, and discloses an oil filtering structure of an oil filter, which comprises an oil filtering tank, the bottom of the oil filtering tank is fixedly connected with a support column, one side of the oil filtering tank, which is opposite to the support column, is communicated with an oil inlet, the inner wall of the oil filtering tank is fixedly connected with a baffle ring, the baffle ring is provided with a butt joint groove, and the butt joint groove is communicated with the oil inlet. A conical plate is fixedly connected to the inner wall of the baffle ring, a plurality of first filtering holes are formed in the conical plate, and a motor is fixedly connected to the position of a center shaft of the side, away from the supporting column, of the oil filtering tank. Oil liquid is filtered through the first filtering holes in the conical plate, due to the fact that the conical plate is conical, large-particle impurities left above the conical plate can slide down along the conical plate and finally fall above the baffle ring, meanwhile, the motor operates to drive the rotating rod to rotate, the rotating rod can drive the cleaning brush to rotate along the top of the conical plate, and the cleaning brush can clean the oil liquid. The surface of the conical plate can be effectively cleaned, and some impurities are prevented from being clamped in the first filtering holes to influence the filtering speed.

The invention relates to the technical field of oil filters, in particular to a digital control oil filter. The filter press comprises a filter barrel and a filter pressing assembly. According to the device, in the process that the stirring barrel rotates in the first filtering cavity to drive the stirring rod to stir oil plants to accelerate exhaust of the oil plants, the stirring barrel drives the filter pressing plate to do up-down reciprocating motion in the second filtering cavity through the inner thread sleeve at the same time, when the filter pressing plate moves downwards, the oil channel is blocked and closed, and the filter pressing plate can compress the oil plants in the second filtering cavity; the piston shaft moves downwards in the suction pipe, so that the inner volume of the suction pipe is increased to form negative pressure, the oil in the negative pressure cavity is adsorbed, passes through the one-way valve and then enters the suction pipe to be temporarily stored, when the filter pressing plate moves upwards, the oil channel is smooth, and the oil temporarily stored in the suction pipe falls into the second filter cavity through the oil channel; therefore, the oil in the negative pressure cavity is introduced into the second filtering cavity, the oil in the second filtering cavity is compressed, and the oil filtering effect can be improved.

The invention belongs to the technical field of oil filter detection, and particularly relates to a sealing performance detection alarm device for oil filter production, which comprises a detection base, and the upper end surface of the detection base is fixedly connected with a support frame and two support bottom plates; the adjustable fixing assembly comprises a linear guide rail fixedly connected to the upper end face of the supporting bottom plate. According to the invention, oil filters of different specifications and types can be fully positioned and fixed, the positioning and fixing universality of the oil filter sealing performance detection device is improved, the sealing performance detection alarm operation of the oil filter can be facilitated, the device is suitable for the oil filters of different specifications and types, the detection universality of the device is effectively improved, and the detection efficiency is improved. And meanwhile, secondary synchronous detection of the oil filter is realized by utilizing the ultrasonic monitoring plate, so that the sealing detection of the oil filter can be mutually complemented and verified, and the accuracy and reliability of the sealing detection of the oil filter are ensured.

The present invention discloses an improved structure of an oil channel of an oil filter base assembly in a vehicle, including an oil filter base, where a lower portion of the oil filter base is provided with an oil inlet, an oil outlet, and an oil return port, an end portion of the oil filter base is provided with an antifreeze solution water inlet, a bottom portion is provided with a first water outlet and a second water outlet that are communicated with the antifreeze solution water inlet, a filter cartridge and a bypass valve are mounted in one end of the oil filter base, a filter cover is connected to an end portion of one end, close to the bypass valve, of the oil filter base, an oil cooler is mounted on an upper portion of one end, away from the filter cartridge, of the oil filter base.

Disclosed is an oil filter base assembly, including an oil filter base, where the oil filter base has one side connected to a first cooler arranged and the other side connected to a second cooler arranged; With the arrangement of the first cooler and the second cooler on the oil filter base, a medium may pass through the two coolers and be cooled simultaneously by the two coolers, thereby improving the cooling effect of the oil filter base assembly. Therefore, the present invention is worthy of popularization and application.

The invention relates to the technical field of engine oil filters, in particular to a multistage filtering engine oil filter which comprises a shell, a filter paper frame is coaxially arranged in the shell, the surface of the filter paper frame is coaxially sleeved with a rough filtering inner sleeve, and the surface of the rough filtering inner sleeve is movably sleeved with a rough filtering outer sleeve capable of moving up and down. First filter holes for rough filtration are uniformly distributed in the surfaces of the rough filtration inner sleeve and the rough filtration outer sleeve, the rough filtration outer sleeve moves up and down to enable the first filter holes in the rough filtration outer sleeve and the first filter holes in the rough filtration inner sleeve to be in a staggered closed state, a lower opening is formed in the lower end of the shell, and a collecting cover is coaxially mounted at the lower end of the shell; the invention aims to solve the problem that after the bypass valve of the engine oil filter is opened, impurities attached to filter paper are easily separated from the filter paper and flow to the positions of all oil-consuming parts of an engine through the bypass valve along with engine oil.

An oil drain pan with an improved pour spout that allows for proper transfer of liquid from the drain pan into other containers. The provided oil drain pan further provides an improved oil filter holder that allows complete drainage of oil from an oil filter with reduced or eliminated spillage and with reduced or eliminated manual intervention to allow complete drainage of the filter.

The comprehensive cleaning equipment for the oil filter comprises a cleaning pool, a plurality of cleaning bins capable of allowing the filter to be placed therein are arranged in the cleaning pool in a matrix mode, and a dynamic cleaning mechanism is arranged in each cleaning bin. The dynamic cleaning mechanism comprises a rotary supporting assembly used for containing the filter and a flushing assembly used for cleaning the filter, in the working state, the rotary supporting assembly is matched with the flushing assembly to drive the filter to rotate, and the flushing assembly is provided with a water spraying channel arranged in the tangential direction of the surface of the filter. High-pressure water flow is guided to act on the surface of the filter in the tangential direction through the water spraying channel, cleaning liquid in the cleaning bin is promoted to form a rotational flow state, the filter rotates on the rotary supporting assembly, comprehensive cleaning is guaranteed, and deep dirt is removed through centrifugal force.

The utility model provides a combined hydraulic valve of a high-lift system. The combined hydraulic valve is composed of an electric connector unit, a shell assembly unit, a pilot control unit and a main valve unit. Wherein an oil filter assembly is arranged at an oil inlet of the pilot control unit; according to the pilot control unit of the combined hydraulic valve, the oil filter assembly is arranged at the oil inlet, foreign matter can be prevented from entering an inner cavity of the pilot valve, and therefore abnormal opening or closing of the pilot valve is avoided; the guide rod and the guide sleeve of the main valve unit are sealed in a sliding ring combination mode, oil leakage is avoided, therefore, the fit clearance of the main valve unit can be properly increased, after the fit clearance is increased, the situation that normal reversing action cannot be achieved due to valve clamping stagnation caused by oil pollution can be avoided, and the anti-pollution capacity of a product is improved.

The invention belongs to the technical field of hydraulic systems, and discloses a drive-by-wire full-hydraulic system and method and a steering method. Wherein the drive-by-wire full-hydraulic system comprises an integrated control valve module, the integrated control valve module is connected with a hydraulic oil tank, an oil filter and an electric control full-hydraulic steering gear module, the electric control full-hydraulic steering gear module is connected with a control module and a wheel angle sensor, and the hydraulic oil tank is sequentially connected with an electronic oil pump and the oil filter; according to the system, hydraulic oil leakage can be effectively prevented, the safety risk is remarkably reduced, natural resources and the ecological environment are protected, consistency and synchronization of actual steering and steering required by control are achieved, steering controllability is improved, and system safety is further improved.

The invention provides a neon removal system for producing high-purity helium, and particularly relates to the technical field of gas purification, and the neon removal system for producing the high-purity helium comprises a circulation unit and a purification unit, wherein the circulating unit comprises a compressor, an oil filtering device, a first heat exchanger, a second heat exchanger, a first adsorber group, a third heat exchanger, an expansion machine and a fourth heat exchanger; the circulating unit further comprises a liquid nitrogen source, a pipeline of the liquid nitrogen source is connected with one inlet of the second heat exchanger, and the liquid nitrogen source is connected to the outside from an outlet of the second heat exchanger; the purification unit comprises a first heat exchanger, a second heat exchanger, a third heat exchanger and a second adsorber group, through pre-cooling of the liquid nitrogen source and expansion of the expansion machine, the raw material helium is cooled to 20 K, then freezing condensation separation is conducted through the second adsorber group in the 20 K temperature zone, and high-purity helium which is lower in neon content and meets the requirement can be obtained.

The invention discloses a hydraulic hoist for a miter gate, which belongs to the field of hydraulic engineering and comprises an oil cylinder, a guide rod is fixedly connected to one side of the oil cylinder, a second connecting sleeve is fixedly connected to one side of the guide rod, a piston rod is slidably connected to the other side of the oil cylinder, and a first connecting sleeve is fixedly connected to one side of the piston rod. The side, away from the first connecting sleeve, of the piston rod is connected with an extrusion assembly, and the outer surface of the oil cylinder is fixedly connected with an oil liquid filtering assembly. The extrusion ring can extrude the rubber stress ring to slightly expand, so that the edge of the piston is expanded, the outer surface of the piston is tightly attached to the interior of the oil cylinder, the sealing performance of the piston is guaranteed, and the situation that oil liquid leaks and influences the pressure of the hydraulic hoist due to gaps caused by abrasion of the piston is avoided; the situation that chippings and particles generated by abrasion of the piston are possibly embedded into the sealing piece, and new scratches are generated on the piston is prevented.

The invention discloses a double-loop defoaming type oil return filter, and relates to the technical field of oil return filters, the double-loop defoaming type oil return filter comprises a treatment tank, a third channel pipe and a fourth channel pipe, the third channel pipe and the fourth channel pipe are communicated with one side of the treatment tank, and ports of the third channel pipe and the fourth channel pipe are jointly communicated with a double-loop oil inlet pipe; the first channel pipe and the second channel pipe are arranged on the other side of the treatment tank. When the piston module telescopically moves, the third channel pipe, the fourth channel pipe, the second channel pipe and the first channel pipe are switched and opened under the action of the first one-way valve plate, and the circulation paths of the double-loop oil inlet pipe and the double-loop oil outlet pipe are correspondingly switched; meanwhile, the working states of the filtering assemblies in the third channel pipe, the fourth channel pipe, the second channel pipe and the first channel pipe are switched, so that the efficient filtering process is realized.

The utility model discloses a motorcycle engine crankshaft box body with an oil separation chamber, which comprises a crankshaft box body formed by connecting a left crankshaft box body and a right crankshaft box body, crankshaft mounting holes and balance shaft mounting holes are arranged on the left crankshaft box body and the right crankshaft box body, and the crankshaft mounting holes and the balance shaft mounting holes are distributed in a pairwise corresponding mode. An oil collecting chamber is arranged at the lower end in the crankcase body, and the balance shaft mounting hole is arranged close to the maximum oil liquid level position of the oil collecting chamber; the bottom of the oil collection chamber is provided with an oil separation chamber which is arranged close to the balance shaft mounting hole, the upper end of the oil separation chamber is close to the maximum oil liquid height of the oil collection chamber, and one side, far away from the balance shaft mounting hole, of the oil separation chamber is provided with an oil inlet hole; an engine oil filter screen is arranged in the oil separation cavity, and an oil guide channel with one end communicated with the oil separation cavity and the other end communicated with an oil inlet of the engine oil pump is arranged on the side of the oil separation cavity.

The invention discloses a skid-mounted reinjection water oil-water separation treatment device, and belongs to the technical field of water treatment, the skid-mounted reinjection water oil-water separation treatment device comprises a cover plate, a separation bin, a feeding pipe, a centrifugal grinding bin, a grinding layer and a grinding gap; the mounting base is fixedly connected to the inner cavity wall of the separation bin, and a hydrophilic oleophobic filter plate is fixedly connected to an opening part of the upper side of the mounting base. Oil-water mixed liquid fed into the centrifugal grinding bin is thrown out of the discharging port under the action of centrifugal force and thrown to the surface of the grinding layer, then the oil-water mixed liquid enters the grinding gap, and along with rotation of the centrifugal grinding bin, the centrifugal grinding bin and the grinding layer jointly grind the oil-water mixed liquid entering the grinding gap; the demulsification efficiency is improved, in addition, the demulsified oil-water mixed liquid is not prone to agglomerate again after being ground and demulsified, in addition, due to the arrangement of the hydrophilic and oleophobic filter plate, water can penetrate through the hydrophilic and oleophobic filter plate, oil is reserved on the surface of the hydrophilic and oleophobic filter plate, and the oil-water separation effect is achieved.

A compressor assembly includes a motor which drives one or more compressor rotors having an oil circulation system including an oil reservoir, an oil cooler and an oil filter, an oil-pump for circulating oil from the oil reservoir to components to be cooled and / or lubricated and back to the oil reservoir wherein the motor has a motor jacket with channels extending in axial directions parallel to the axial direction of a motor shaft in which oil of the oil circulation system circulates.

The invention belongs to the technical field of aircraft hydraulic pipeline pressure pulsation and vibration suppression design, and particularly relates to an aircraft hydraulic pipeline pressure pulsation and vibration suppression system and a design method thereof.The aircraft hydraulic pipeline pressure pulsation and vibration suppression system comprises a vibration absorber, a pressure accumulator, a rubber single-hole pipe clamp and a metal single-hole pipe clamp; the vibration absorber, the pressure accumulator, the rubber single-hole pipe clamp and the metal single-hole pipe clamp are arranged on the hydraulic pipeline, and the rubber single-hole pipe clamp and the metal single-hole pipe clamp are connected to the machine body structure through the pipeline support. An inlet of the hydraulic pipeline is connected with an outlet of the hydraulic pump, and an outlet of the hydraulic pipeline is connected with an inlet of the hydraulic load. The vibration absorber is arranged at an inlet of the hydraulic pipeline, close to an outlet of the hydraulic pump and located on the upstream of the one-way oil supply valve, and the pressure accumulator is arranged between the high-pressure oil filter and the hydraulic load; a plurality of rubber single-hole pipe clamps and a plurality of metal single-hole pipe clamps are distributed on the hydraulic pipeline.

The utility model relates to the technical field of engine oil filter elements, in particular to a filter element drawing tool, which comprises a supporting platform, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism, a drawing mechanism and a drawing mechanism, and is characterized in that the supporting platform is arranged on a step of a filter element cavity; the hand wheel is arranged on the cross rod, and a hand rod of the hand wheel penetrates through the through hole; the positioning drag hook is arranged at the end, away from the transverse rod, of the hand rod, and a bent part is arranged at the bottom end; wherein the hand lever moves in the vertical direction; and the bent part is used for penetrating through a connecting hole in the filter element. According to the utility model, the filter element drawing tool is used, so that the replacement of the filter element is simpler and quicker, and the working efficiency is improved; the firm connection of the positioning drag hook and the filter element ensures the stability and safety in the dismounting process, and reduces the occurrence of accidents; the stability of the supporting platform ensures that the tool does not shake or slide during working, and the accuracy and reliability of operation are improved; and the rotating operation of the hand wheel enables the disassembly to be more labor-saving, and the labor intensity of operators is reduced.

The utility model provides a coating wastewater filtering device and belongs to the technical field of coating wastewater treatment. Comprising a tank body, a cover body is installed at the upper end of the tank body through bolts, a supporting base is welded to the lower end of the tank body, a water inlet pipe is arranged above the right side of the outer end of the tank body, an oil discharging pipe is arranged above the rear side of the outer end of the tank body, a discharging pipe is arranged below the water inlet pipe, and a collecting assembly is connected to the rear end of the oil discharging pipe through a flange. Through the arrangement of the tank body, the cover body and the collecting assembly, the whole working process can be carried out in a sealing structure during wastewater treatment, chemical pungent smell cannot be emitted, the body health of operators is ensured, and the working efficiency is improved. And paint oil, particles and water flow in the wastewater are separated through the oil filtering baffle and the particle baffle inside, the paint oil, the particles and the water flow are directly and completely separated from one another, the situation that the filtered wastewater is directly discharged does not exist, and the wastewater treatment efficiency is improved.

A two-stage backwashing catalytic slurry oil filtering system comprises a filter, a backwashing gas pipeline and a deslagging pipeline, the deslagging pipeline is provided with a first-stage deslagging circulating pipeline and a second-stage deslagging pipeline, the filter is provided with an upper shell, a lower shell and a metal filter element, the upper shell is communicated with the backwashing gas pipeline, the metal filter element is arranged in the lower shell, and the backwashing gas pipeline is communicated with the metal filter element. A baffle is longitudinally separated in the lower shell, an isolation groove for storing clean slurry oil is defined between the baffle and the lower shell, the isolation groove is communicated with a first-stage deslagging circulating pipeline, the first-stage deslagging circulating pipeline is connected back to the filter and is used for washing a filter cake and / or a component, and the bottom of the lower shell is communicated with a second-stage deslagging pipeline. The first-stage backwashing deslagging liquid returns to the filter for recovery, and the second-stage backwashing deslagging liquid generates a filter volume deslagging liquid, so that the loss amount of the two-stage backwashing backwashing liquid is 50% lower than the filter volume, and compared with a conventional backwashing mode, the oil slurry loss amount and the backwashing liquid deslagging amount are reduced by more than 50%.

The invention discloses a flow-choking impact-resistant defoaming type return oil filter, and relates to the technical field of hydraulic filters, the flow-choking impact-resistant defoaming type return oil filter comprises a filter shell, an oil inlet and an oil outlet, the oil inlet and the oil outlet are formed in the two ends of the filter shell, and a cavity communicated with the oil inlet and the oil outlet is formed in the filter shell; and the connecting column is fixedly connected to the interior of the cavity, the outer wall of the connecting column is fixedly connected with a spiral track, and the spiral track is arranged on one side of the oil inlet. By arranging the switching filtering mechanism, impurities in backflow hydraulic oil are filtered out through the filtering plate, a filtering channel can be switched through the switching filtering mechanism after a period of time, then the backflow hydraulic oil can be intermittently filtered through the filtering box, and the situation that the filtering plate is blocked due to the fact that the impurities are accumulated on the filtering plate is avoided; therefore, the hydraulic oil filtering efficiency is improved, and the overall practicability of the device is improved.

The utility model relates to a hydraulic oil filtering device, which belongs to the technical field of filters and comprises a case, a filter screen cylinder and a driving mechanism, and a limit ring is fixed on the inner bottom surface of the case; the filter screen cylinder is arranged in the case in the height direction of the case, the bottom end of the filter screen cylinder is rotationally connected into the limiting ring through a bearing, and a plurality of connecting frames are fixed in the filter screen cylinder at intervals; the driving mechanism comprises a motor and a driving rod; the motor is fixed on the top surface of the case; the driving rod is arranged in the machine box and fixed to the multiple connecting frames, and the top end of the driving rod is in transmission connection with an output shaft of the motor through a coupler. The motor is used for driving the filter screen cylinder to rotate through the driving rod and the connecting frames, and as the top opening end of the filter screen cylinder is positioned below the dirty oil inlet hole, centrifugal force can be generated in the filter screen cylinder when the filter screen cylinder rotates, so that the speed of hydraulic oil passing through meshes of the filter screen cylinder is increased, and the filtering time of the hydraulic oil is shortened; the filtering efficiency of hydraulic oil is improved.

The invention belongs to the technical field of lubricating oil filtering, and discloses a lubricating oil filtering system based on machine learning. Comprising a data acquisition and processing module used for acquiring lubricating oil sample data and working condition environment data corresponding to the lubricating oil sample data, and preprocessing the lubricating oil sample data to obtain sample feature data; the component identification module is used for inputting the sample feature data into a pre-constructed improved deep belief network model to obtain a dependent acyclic graph; the evaluation module is used for acquiring a preliminary degradation trend sequence in the t period of time in the future based on the working condition environment data and the dependency acyclic graph; and the decision module is used for outputting a filtering decision by utilizing an attention fusion algorithm based on the preliminary degradation trend sequence, and sending the filtering decision to a filtering control terminal, so that the utilization rate of equipment is greatly improved, the maintenance cost is reduced, and the stability and the safety of production are ensured.

The oil filter cleanliness detection device comprises an oil pan, an oil filter is fixedly installed on the left side of the oil pan, a main pressure cavity is formed in the left side of the oil pan and located on the right side of the oil filter, a steel plate is fixedly installed on the upper side of the oil pan, and a paper pad is arranged between the oil pan and the steel plate. An oil filter valve body is fixedly installed on the upper side of the steel plate, an oil filter valve element is slidably connected into the oil filter valve body, a pressure detection hole is formed in the upper side of the oil filter valve body, a pressure switch is fixedly installed on the upper side of the pressure detection hole, a spring is fixedly installed on the right side of the oil filter valve element, and an oil filter aluminum pad is fixedly installed on the right side of the oil filter valve body. The left side of the oil filter aluminum pad clings to one end of the spring away from the oil filter valve core. By means of the mode, the oil filter valve element can be pushed to move through the oil pressure difference, an oil way can be in the on-off state, the oil pressure is detected only through the pressure switch, an additional sensor is not needed, and the cleanliness of the automatic gearbox oil filter is judged.

The utility model relates to an oil circulation mechanism of a gearbox running-in workbench, which comprises a shell, a polluted oil tank, a transition oil tank and a clean oil tank are sequentially arranged in the shell from right to left, and one side of the polluted oil tank and one side of the transition oil tank are connected with a dirty oil filtering assembly; and the running-in stations are symmetrically arranged on the two sides of the shell, two sets of running-in stations are arranged on each side, and each set of running-in stations comprises an operation panel, a circulating oil port connected with the gearbox and a circulating filtering assembly used for filtering oil liquid. The utility model relates to the technical field of gearbox running-in workbenches. According to the oil circulating mechanism of the gearbox running-in workbench, through the arrangement of the dirty oil filtering assembly and the circulating filtering assembly, dirty oil in a gearbox can be filtered in the gearbox running-in period, the oil is synchronously filtered in the gearbox running-in working period, the shutdown oil changing time is saved, the service life of the oil is prolonged, and the working efficiency is improved. The abrasion of equipment parts is reduced, the non-planned downtime of the equipment is shortened, and the oil pollution treatment cost is reduced.

The invention relates to the field of filtering devices, in particular to a hydraulic oil filter element which comprises a shell, a liquid inlet is formed in one side of the shell, a liquid outlet is formed in the bottom wall of the shell, a cylindrical filter element body located above the liquid outlet is installed on the inner side of the bottom wall of the shell, and a connecting column coaxial with the filter element body is fixedly installed on the inner side of the top wall of the shell. A supporting seat for pressing the filter element body downwards is fixedly mounted at the lower end of the connecting column; the outer side of the connecting column is rotatably provided with a sleeve which is coaxially arranged, the outer side of the sleeve is slidably provided with a mounting plate in the axial direction of the sleeve, the mounting plate is fixedly provided with a brush plate, the brush plate is provided with bristles used for cleaning the outer wall of the filter element body, and the shell is provided with a driving device used for driving the sleeve to rotate; the bristles on the brush plate rotate around the filter element body in the circumferential direction and move in a reciprocating mode in the axial direction of the filter element body at the same time, and therefore impurities attached to the outer wall of the filter element body are more efficiently swept away.

A diesel oil filter comprises a shell, a filter seat is arranged on the shell, an oil inlet hole and an oil outlet hole are formed in the filter seat, a filter layer is arranged in the shell, the filter layer comprises a filter element assembly, the filter element assembly comprises an upper end cover and a lower end cover, a cylindrical filter element is coaxially arranged between the upper end cover and the lower end cover, a center pipe is arranged in an inner cavity of the cylindrical filter element, and the center pipe is arranged in the inner cavity of the cylindrical filter element. An oil outlet channel is arranged in the upper end cover; as shown in the figure, a water absorption layer is arranged in the central pipe, and the outer side of the filter element assembly is communicated with the oil inlet hole; or the outer side of the cylindrical filter element is sleeved with a water absorption layer. The water absorption layer is used for absorbing water in diesel oil, so that a water level monitoring element and a water drainage element of the diesel oil filter are omitted, the structure is simplified, the occupied space of the filter is reduced, potential fault points are reduced, the overall reliability of the filter is improved, the filter is more convenient and rapid to install and maintain, and the service life of the filter is prolonged. And the daily drainage maintenance, water level detection and drainage element maintenance cost is saved.