2259 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 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 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.

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 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 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.

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 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 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 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.

An air dryer cartridge including a desiccant container and a desiccant contained in the desiccant container is provided. The desiccant container includes a wall forming an oil filter receptacle recessed into the desiccant container. The air dryer cartridge includes an insertion opening for insertion of at least a portion of an oil filter into the oil filter receptacle.

The utility model discloses an oil filter for hydraulic oil circulation, and relates to the technical field of hydraulic systems. The device comprises a filter shell, a sealing cover and a ventilation cleaning frame, a filter element is clamped and fixed to the center in the filter shell, the sealing cover is clamped and fixed to the top of the filter shell, a liquid pump penetrates and is clamped to the center of the top of the sealing cover, an oil pumping pipe penetrates and is clamped to one end of the peripheral face of the liquid pump, and a semiconductor refrigeration assembly and a heating pipe are clamped and fixed to the peripheral face of the oil pumping pipe; a ventilation cleaning frame sleeves the peripheral surface of the filter element, a ventilation pipe and a lifting cylinder are arranged at the top of the ventilation cleaning frame, and an air pump penetrates through and is clamped to the top of the peripheral surface of the ventilation pipe. By arranging the filter shell, the sealing cover and the ventilation cleaning frame, the problems that the filter screen is abraded due to long-time friction between the scraper blade and the filter screen, a large amount of impurities in hydraulic oil can be separated out within different temperature ranges, and the filtering effect on the hydraulic oil within a fixed temperature range is poor are solved.

The invention provides a cooling and lubricating system, a vehicle and a control method of the cooling and lubricating system. The system comprises an oil pan and a conveying pipeline, and the inlet end of the conveying pipeline communicates with the oil pan; the power element, the filtering element, the driving element, the heat exchange element and the speed reduction element are sequentially arranged on the conveying pipeline in the conveying direction of lubricating oil. The outlet end of the conveying pipeline communicates with the oil pan. The temperature detection part is arranged between the filtering element and the driving element so as to detect the real-time temperature of the lubricating oil filtered by the filtering element; and the controller is connected with the temperature detection part so as to control at least one of the rotating speed of the power element, the rotating speed of the driving element, the rotating speed of the speed reduction element and the heat exchange efficiency of the driving element according to the real-time temperature. And the size is huge.

A hydraulic oil source system and a hydraulic oil filtering method belong to the technical field of hydraulic oil sources, the hydraulic oil source comprises a hydraulic oil source and a working system, the hydraulic oil source comprises an oil tank, an oil supply mechanism and a return oil filtering mechanism, a partition plate is fixedly arranged in the oil tank and divides the interior of the oil tank into a clean oil cavity and a dirty oil cavity, and the clean oil cavity is connected with the working system through the oil supply mechanism; the dirty oil cavity is connected with the clean oil cavity through the oil return filtering mechanism, the dirty oil cavity is connected with the working system through the oil return pipeline, the clean oil cavity and the dirty oil cavity in the oil tank are isolated, pollutants in the dirty oil cavity are effectively isolated, it is guaranteed that hydraulic oil in the clean oil cavity is always in high cleanliness, and the abrasion rate of an oil supply pump set and the blocking rate of a valve set are reduced.

The present invention provides an integrated device for solid-liquid and oil-water separation of kitchen waste, belonging to the technical field of kitchen waste treatment. The device includes a pretreatment filter screen, a solid-liquid separation filling area, a solid-liquid separation oil filtering area, a solid-liquid separation cleaning area, an oil pump, a shallow pond separation area, a bubble oil removal area, an oil tank and a water tank. The pretreatment filter screen is arranged at the front end of the device, and the solid-liquid separation filling area is arranged behind it. The solid-liquid separation oil filtering area and the solid-liquid separation cleaning area are sequentially arranged behind the solid-liquid separation filling area. The solid-liquid separation oil filtering area is connected to the shallow pond separation area through an oil pump. The bubble oil removal area is arranged behind the shallow pond separation area, and the oil tank and the water tank are connected behind the bubble oil removal area. The device separates and processes the solid-liquid mixture by using the three-way rotation centrifugal method at the source of kitchen waste, and performs multi-stage separation treatment on the oil-water mixture by applying the shallow pond theory, realizing the recycling of kitchen waste and avoiding environmental pollution caused by oil-water leakage during transportation.

The utility model relates to a pulse type oil filter which comprises a machine shell, a filter element and a shell cover, an upper supporting plate is installed at the upper end of the filter element, an annular groove is formed in the shell cover, a plurality of oil inlet channels communicated with the annular groove are formed in the bottom of the shell cover, and adjusting valves are arranged in the oil inlet channels. Magnet blocks used for driving the adjusting valves are fixedly installed on the upper supporting plate and correspond to the adjusting valves in a one-to-one mode, and the adjusting valves are located under the oil inlet channel. According to the pulse type engine oil filter, the adjusting valve is arranged in the oil inlet channel, the adjusting valve is driven by matching with the magnet block arranged on the filter element, the flow / flow speed of engine oil flowing into the machine shell through the oil inlet channel can be dynamically adjusted, and therefore the filter element can keep up-down pulse type movement for a long time in the machine shell; therefore, large-scale impurity enrichment at a certain position of the filter element is effectively avoided, and the magnet block can also adsorb a part of iron-containing impurities; finally, the effects of effectively prolonging the service life of the filter element and reducing the replacement frequency of the filter element are achieved.

The invention belongs to the technology of aircraft hydraulic systems, and relates to a hydraulic retracting and releasing device for an aircraft sled. Comprising a hydraulic oil tank, a hydraulic pump, a one-way valve, a hydraulic oil filter, a two-position three-way electromagnetic valve, a pressure sensor, a pressure regulating valve, a three-position four-way electromagnetic valve, a front sleigh throttle valve, a left sleigh throttle valve, a right sleigh throttle valve, a front sleigh actuating cylinder, a left sleigh actuating cylinder and a right sleigh actuating cylinder. And the sleigh can be retracted and released. When the airplane lands on the ice and snow covered pavement, the sleigh is put down, and the airplane lands through the sleigh. When the airplane lands on hard road surfaces such as sand and stones, the sled is folded, and the airplane lands through airplane wheel tires. A simulation model of the sled retracting and releasing system is established in simulation software, a curve of displacement and time is obtained according to loads in different flight states, the flow range of the adjustable throttling valve is determined, the range of the through-flow area of the throttling valve is calculated according to a small hole throttling formula, and the range of the through-flow area serves as the flow adjusting requirement of the adjustable throttling valve.

The invention discloses a filtering and residue removing device for edible oil production in the technical field of edible oil production, the filtering and residue removing device comprises an oil filtering box and a collecting box, the middle part of the oil filtering box is provided with a rotating filter plate, an inner blocking structure and an outer blocking structure, and the top of the rotating filter plate is provided with a push plate, a driving assembly, a transmission assembly, a filter pressing wheel and a scraping plate; according to the oil filtering device disclosed by the invention, oil liquid is primarily filtered by rotating the filtering plate, and is secondarily filtered by the filtering bag, so that the filtering effect and the oil liquid quality are improved; the rotary filter plate rotates relative to the oil inlet pipe through the rotary assembly, so that excessive filter residues at the same position are prevented from being accumulated; filter residues on a rotary filter plate and in a filter bag are fully extruded and filtered through a filter pressing wheel and an extrusion assembly respectively, so that oil waste is reduced; and the two push plates move outwards through the driving assembly and the transmission assembly, and the cleaned filter residues enter the discharging groove, so that the filter residues are cleaned more quickly and conveniently.

The invention relates to the technical field of double-diaphragm hydraulic valves, in particular to a double-diaphragm hydraulic valve. A double-diaphragm hydraulic valve comprises a main valve shell and a side valve shell which are connected with each other, the main valve shell is communicated with an oil inlet pipe, an oil filter generation mechanism is installed on the inner top of the main valve shell, the oil filter generation mechanism is in transmission connection with an oil filter table capable of moving up and down in a reciprocating mode, a rotatable rotary sealing barrel shell and a rotatable mandrel, and the rotary sealing barrel shell is rotatably connected with the oil filter table. The mandrel is rotationally connected with the rotary sealing barrel shell, the rotary sealing barrel shell is communicated with an oil guide pipe, an oil filter element is rotationally installed at the eccentric position of the bottom face of the rotary sealing barrel shell, and the top end of the oil filter element is rotationally communicated with the oil guide pipe. The double-diaphragm hydraulic valve has the beneficial effects that when the double-diaphragm hydraulic valve is used, filtering operation of impurities in a hydraulic medium can be synchronously achieved, and when the double-diaphragm hydraulic valve filters the impurities in the hydraulic medium, the oil pressure of the hydraulic medium in the hydraulic valve can be improved through reciprocating deformation extrusion, and the filtering efficiency of the hydraulic medium is improved.

The utility model discloses an oil filter inner chassis punching forming device which comprises a workbench, the rear side of the top of the workbench is fixedly connected with a connecting block, and the front side of the connecting block is fixedly provided with a punching machine. According to the oil filter inner base plate punching device, the oil filter inner base plate is placed on the top of the supporting ring, then the rotating disc, the connecting rod and the rotating rod are used in cooperation, the sliding L-shaped plate clamps and fixes the outer side of the oil filter inner base plate, and then the porous punch can punch the oil filter inner base plate; the inner chassis of the oil filter can be clamped in the punching process by adopting a rotary inner support clamping structure and multi-hole punching, so that the multi-hole punching is performed on the inner chassis of the oil filter, the time is saved, the clamping and fixing are performed, the accuracy is improved, the danger caused by manual supporting and fixing is avoided, and the production efficiency is improved. Therefore, the purpose of improving the quality and the efficiency of the inner chassis of the oil filter during processing is achieved.