1151 results about "Oil filter" patented technology

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 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.

This invention discloses an oil-immersed transformer with an oil passage cleaning function, comprising a housing for mounting the core and windings, an oil conservator at the upper end of the housing, an oil pump on the side wall of the housing, a blockage-clearing filter assembly for unblocking and cleaning the oil passages on one side of the housing and the oil conservator, a conduit and a trigger assembly for circulating oil connecting the housing and the oil conservator, and a controller at the upper end of the housing. This invention has a simple structure and reasonable design. Firstly, by controlling the pipe diameter, larger winding insulation impurities cannot leave the oil conservator and housing during normal circulation. Then, by adjusting the transformer oil circulation path, the blocking winding insulation impurities are guided into the oil filter for filtration and removal. This avoids prolonged overload and damage to the oil pump or other circulation equipment, effectively extending the service life of the oil pump and circulation equipment and reducing maintenance costs.

The utility model provides a compressor structure. The compressor structure comprises a compressor shell, an oil groove, an oil gas barrel, a motor, a first mounting seat, at least one oil filter, a second mounting seat and at least one fine oil separator, the compressor shell is provided with a compression cavity. The compressor shell, the oil groove and the oil gas barrel are of an integrated casting forming structure. The motor and the first mounting base are arranged on the two opposite sides of the compressor shell correspondingly. The first mounting base is provided with an oil-gas flow channel, and the compression cavity communicates with the oil-gas barrel through the oil-gas flow channel. The oil filter is arranged on the first installation base and communicates with the compression cavity through the first installation base. And the second mounting seat is arranged on the oil gas barrel. And the oil fine separator is arranged on the second mounting seat and is communicated with the oil gas barrel through the second mounting seat. Therefore, the compressor structure provided by the utility model is beneficial to improving the oil gas separation effect.

The invention discloses a lubricating oil system of an aviation turboprop engine. The lubricating oil system comprises a lubricating oil supercharging device, an oil-gas separation device, a lubricating oil return device, a lubricating oil filtering device, a lubricating oil monitoring device and a connecting guide pipe communicating all the devices. The lubricating oil supercharging device comprises a main lubricating oil pump, an auxiliary lubricating oil pump and a torque measuring pump; the oil-gas separation device comprises a ventilation oil tank, an air separator and an oil mist separator; the lubricating oil return device comprises a lubricating oil tank, a lubricating oil radiator, a middle and rear bearing oil well pump, a transmission box oil well pump and a direct-current electric lubricating oil pump; the lubricating oil filtering device comprises a lubricating oil filter and a middle-rear bearing oil return filter; the lubricating oil monitoring device comprises a temperature metal chip annunciator and a magnetic chip detection annunciator. Appropriate lubricating oil pressure and oil quantity are provided, lubrication and heat dissipation of friction surfaces of parts in an engine are improved, and the use reliability of the engine is improved.

The invention belongs to the technical field of transmission cooling and lubricating, and relates to a transmission rear end forced lubricating and cooling system of a parallel hydrodynamic retarder and a transmission. Comprising a retarder support, a rear cover, an oil pump, a power takeoff side cover, a rear bearing cover, an oil pump diverter valve, a cooling lubricating oil way, an oil filtering plug screw and a net type oil filter. The oil pump diverter valve is used for being connected with an external heat exchanger, oil in an oil way is cooled, the temperature of lubricating oil is effectively reduced, and thermal safety of parts in the box body is guaranteed. Under the condition that other structures of the gearbox are not added, all-directional lubrication inside a rear-end transmission system is achieved, and the structural compactness and the space utilization rate are improved. Lubricating points of the lubricating system are comprehensively covered, oil duct connection of different shells is achieved through butt joint of the cross-joint-surface oil ducts, the lubricating system is compact in design, and the comprehensive performance, safety and reliability of a transmission system are improved in the aspects of heat dissipation, cooling, fatigue and efficiency of the system.

The invention discloses an engine oil filter with a spiral spoiler. The engine oil filter comprises a bottom shell, an outer cover is fixedly connected to the bottom shell, a liquid inlet and a liquid outlet are formed in the bottom shell, a check valve is arranged on the liquid inlet, a connecting cylinder is fixedly connected into the liquid outlet, a filter element structure is fixedly connected to the connecting cylinder, and a bypass valve is arranged on the filter element structure; the flow guide assembly comprises a first spiral spoiler, the first spiral spoiler is located between the filter element structure and the outer cover, the first spiral spoiler is rotationally connected to the annular base, the bypass valve is fixedly connected with the annular base through a connecting mechanism, a supporting mechanism is fixedly connected into the outer cover, and a stop mechanism is arranged between the supporting mechanism and the annular base. Impurities of engine oil can be prevented from being gathered at a certain position, the use of a filtering part is more balanced, the durability of the device is improved, meanwhile, oil liquid can flow along the spoiler during operation, and large particles generate centrifugal force, so that the oil liquid is thrown to the wall surface and flows to the bottom along the spoiler, and the blockage degree of the filter element is reduced.

The invention discloses a performance test method for high-precision filtered oil of steam turbine oil, and particularly relates to the technical field of lubricating oil testing, and the performance test method comprises the following steps: S1, constructing a closed-loop test system and preparing a reference oil sample, S2, injecting solid particles and soluble colloid pollutants in a programmed collaborative manner to simulate a dynamic pollution load, and S3, testing the performance of the high-precision filtered oil of the steam turbine oil. S3, multi-stage composite working condition circulation including high-temperature and high-flow, rapid cooling, pressure fluctuation and high-temperature and low-pressure stages is operated, and upstream and downstream particle distribution, moisture and pressure difference of filtered oil are monitored in real time; and S5, generating a comprehensive report containing the dynamic dust holding capacity, the efficiency curve, the performance influence coefficient and the simulated life. According to the invention, the comprehensive performance and long-term reliability of the filtered oil can be evaluated more truly and comprehensively.

The utility model provides an oil separator which comprises a barrel, an air inlet pipe, an air outlet pipe and an oil filter. The air inlet pipe is connected to the cylinder; the air outlet pipe is connected to the cylinder, one end of the air outlet pipe extends into the cylinder, and the other end of the air outlet pipe extends out of the cylinder. The oil filter is arranged at the end, located in the cylinder, of the gas outlet pipe and used for preventing oil from entering the gas outlet pipe and allowing gas to circulate. Through the structural design, according to the oil separator, oil liquid in gas is filtered out through the oil filter, the oil liquid in the gas is prevented from entering the gas outlet pipe, the separation effect of the oil separator can be optimized, and then the working efficiency of related equipment such as a condenser can be improved.

An integrated oil filtering and oil storage device and a fully automatic control method. The integrated oil filtering and oil storage device comprises a waste oil tank (400), a first clean oil tank (200), a second clean oil tank (300) and a vacuum oil filter (100), wherein the waste oil tank (400) is provided with a fourth liquid level switch (401) and a fifth liquid level switch (402), which are used for determining the liquid level in the waste oil tank (400) and controlling the start or stop of an oil replenishment process; the first clean oil tank (200) is provided with a first liquid level switch (201) and a second liquid level switch (202), which are used for determining the liquid level in the first clean oil tank (200) and controlling the start or stop of first oil filtering and oil injection processes; the second clean oil tank (300) is provided with an eighth liquid level switch (302) and a ninth liquid level switch (303), which are used for determining the liquid level of clean oil in the second clean oil tank (300) and controlling the start or stop of second oil filtering and oil injection processes. The device has the functions of oil filtering, waste oil storage and clean oil storage; and by means of the liquid level switches, a fully automatic control process is achieved without requiring manual operation, and the functions of automatic oil filtering, automatic clean oil storage and automatic waste oil storage can be achieved, thereby avoiding the risks of device malfunction and misoperation.

The utility model discloses off-line integrated filtering and purifying equipment, which relates to the technical field of oil product purifying equipment and comprises a vacuum filtering mechanism, a purifying and filtering mechanism, a vacuum tank, a vacuum pump, a condensing pipe assembly, an oil drain pump and a heating pipe assembly. An oil product enters the first heating pipe from the oil inlet pipe to be preheated and then enters the coarse filter, and the first heating pipe can effectively reduce the kinematic viscosity of the oil product, so that the oil product runs more smoothly after entering the coarse filter subsequently, and the oil product purification rate can be effectively increased; the oil product enters the second heating pipes to be heated after passing through the coarse filter and then is fed into the vacuum tank to be subjected to vacuum oil filtering treatment, and in the heating treatment process of the oil product through the multiple second heating pipes, contact between the oil product and the heating component is more uniform, so that the oil product is heated more uniformly; therefore, the temperature of the oil entering the vacuum tank is more uniform, and the vacuum oil filtering treatment effect of the oil is improved.

The invention discloses an electronic oil pump control method, an oil filtering device and an electric drive system, and relates to the technical field of electric drive systems.The electronic oil pump comprises a pump body, a motor and a motor controller, the motor controller is connected with the motor, the motor is connected with the pump body, an oil suction opening is formed in the pump body, and a filter screen structure is arranged at the oil suction opening; the filter screen structure corresponds to the oil suction port; the electronic oil pump control method comprises the steps that the detection current and the real-time rotating speed of an electronic oil pump are obtained; determining a reference current corresponding to the real-time rotating speed according to the real-time rotating speed and a preset relation table; and if the electronic oil pump rotates in the forward direction and the detection current exceeds the threshold value of the reference current, the motor controller sends a signal and controls the electronic oil pump to rotate in the reverse direction so as to clean impurities of the filter screen structure. The effects that the filter screen is automatically cleaned, and the phenomenon that the filter screen structure is blocked by impurities and consequently the oil pump is blocked is avoided are achieved.

The utility model relates to the technical field of engine oil filters, and discloses a long-life engine oil filter which comprises a shell mechanism, a sealing cover mechanism is fixedly arranged on the upper end face of the shell mechanism, a first clamping mechanism is fixedly arranged on the lower end face of the sealing cover mechanism, and a filter cartridge mechanism is fixedly arranged on the lower end face of the first clamping mechanism. A second clamping mechanism is fixedly arranged on the lower end surface of the filter cartridge mechanism, and filter paper is clamped between the first clamping mechanism and the second clamping mechanism. According to the filter, the upper end and the lower end of the filter paper can be clamped and fixed in the clamping grooves and are adhered by using an adhesive, so that the adhesion strength of the filter paper can be greatly improved, and the service life of the filter is prolonged; and the magnetic attraction block can attract and collect metal impurities in unfiltered engine oil into the storage groove to prevent the metal impurities from scouring the filter paper to cause breakage of the filter paper, so that the filtering efficiency of the filter is improved.

The present disclosure provides an engine oil cooling structure of an engine. In the engine oil cooling structure of an engine, the engine includes a crankcase, the crankcase is provided with an oil filter mounting chamber having a cylindrical shape, the cooling structure includes a water channel, a water inlet of the water channel communicates with a water pump, the crankcase is further provided with a main oil channel, the crankcase is further provided with a heat conducting thin wall, an inner cavity of the heat conducting thin wall form the oil filter mounting chamber, the oil filter mounting chamber communicates with the main oil channel, the water channel is arranged around an outer side wall of the heat conducting thin wall, and a water outlet of the water channel communicates with a cooling water channel arranged in the same direction as and adjacent to the main oil channel.

The utility model discloses an energy-saving high-speed press hydraulic system, and belongs to the technical field of hydraulic systems. Aiming at the problems of low punching speed and high energy consumption of a traditional press hydraulic system, the system provides an energy-saving and efficient scheme integrating servo motor driving, a bag type energy accumulator and multi-stage valve control. The core of the hydraulic system comprises a vertical pushing and lifting oil cylinder, a hydraulic oil pump driven by a servo motor, a Y-shaped meso-position function electro-hydraulic reversing valve, an H-shaped electromagnetic reversing valve, a bag type energy accumulator and an electric valve, wherein the bag type energy accumulator and the electric valve are connected through a bridge type oil pipe. According to the system, energy is stored in the piston rod recovery stage through the energy accumulator, oil is supplied cooperatively with the hydraulic pump during stamping, and high-flow output under low power is achieved. In addition, the safety and the stability of system operation are guaranteed through multi-stage safety valves, pressure sensors and oil filtering / cooling devices on the main oil pipe and the branch oil pipes. According to the design, the punching speed is remarkably increased, energy consumption is reduced, and the device is suitable for intermittent high-speed punching scenes and has high efficiency and energy saving performance.

The invention discloses a range hood for multi-stage separation of oil fume and an oil fume separation method thereof.The range hood for multi-stage separation of oil fume comprises an exhaust fume collecting hood, an oil fume channel, a fan assembly and a fume outlet which are sequentially communicated from bottom to top, and an oil fume filtering device is arranged in the oil fume channel; the oil fume filtering device comprises a hollow oil collecting rod and an oil baffle plate with a cambered surface structure, wherein a plurality of inclined holes which are spirally and upwards arranged are formed in the oil collecting rod; one end of each oil baffle plate with a downward cambered surface is embedded into the inclined hole to be fixed, and the angle formed by each oil baffle plate and the oil collecting rod is ensured to be greater than 90 degrees; an oil filter screen is arranged between every two adjacent oil baffle plates for connection; the bottom of the oil collecting rod is movably connected with an oil receiving cup; during working, oil fume enters the oil fume channel through the fume collecting hood, escaped oil molecules are intercepted from bottom to top with the oil baffle plates and the oil filter screens, and the oil molecules attached to the oil baffle plates and the oil filter screens slide into the cavity of the oil collecting rod through the inclined holes along the oil baffle plates and finally flow into the oil receiving cup.

The utility model relates to a lubricating oil filter bypass sensor tester, which comprises a box body, an operation panel is arranged on the box body, a power supply, a test adapter, a temperature unit and a pressure unit are arranged in the box body, the operation panel is provided with a test interface, a temperature regulation panel and a pressure regulation knob, the temperature unit comprises a temperature platform, and the pressure unit comprises a gas source and a temperature platform. The test interface is arranged at the bottom of the box body, the test adapter is fixedly arranged above the test interface and is respectively connected with the power supply and the temperature regulation panel, the air source is fixed at the bottom of the box body and is respectively connected with the test adapter and the pressure regulation knob, and an input port of the test adapter is arranged in the test interface and is connected with a to-be-tested lubricating oil filter bypass sensor through the test interface; the temperature adjusting panel is used for setting the temperature of the temperature platform, the pressure adjusting knob is used for adjusting the output pressure of the air source, the output pressure is presented in the form of a portable function test box, the actual working temperature and the environment pressure of the sensor can be accurately simulated, and the test safety and accuracy are improved.

The invention discloses a vacuum oil filter, and relates to the field of oil filters, the vacuum oil filter comprises a coarse filter barrel, and a filter plate I and a filter plate II which are symmetrically and movably arranged at the upper end in the coarse filter barrel, and the opposite side surfaces of the filter plate I and the filter plate II are both provided with scraping mechanisms; a transmission mechanism driving the scraping mechanism to operate penetrates through the middle of the scraping mechanism, and a motor providing driving force for the transmission mechanism is fixedly arranged at the top end of the transmission mechanism. A first rotating shaft is driven by a motor to rotate, a first sliding block and a second sliding block are driven to slide along a first guide groove and a second guide groove correspondingly, and a second sliding rod generates axial reciprocating motion and intermittent rotation; the scraping rod and the scraping block rotate to scrape oil sludge on the surfaces of the first filtering plate and the second filtering plate, impurities are sucked into the filtering box through a negative pressure channel formed by the fixing block, the cavity in the side wall of the scraping rod, the hose and the inner cavity of the roller, automatic cleaning and impurity transferring of the filtering plates are achieved, and blocking is effectively prevented.

This utility model discloses an oil filter for chemical production, comprising two filter canisters. A fine filter screen and a coarse filter screen are fixedly installed in the inner cavity of each filter canister. A piston is movably connected to the lower part of the inner cavity of each filter canister. A cylinder is installed through the top of each filter canister, and a connecting rod is fixedly installed at the movable end of the cylinder. Both the fine and coarse filter screens have insertion holes corresponding to the connecting rod, which is inserted into these holes. A liquid injection valve is connected to the lower side wall of the filter canister corresponding to the coarse filter screen, and a liquid drain valve is connected to the upper side wall of the filter canister corresponding to the fine filter screen. A lower ventilation hole is provided at the bottom of each filter canister. A connecting pipe is provided between the two filter canisters. The input end of the connecting pipe is connected to the upper side wall of the filter canister corresponding to the coarse filter screen, and the output end of the connecting pipe is connected to the lower side wall of the filter canister corresponding to the fine filter screen. This utility model relates to the technical field of oil filters. This oil filter filters oil from bottom to top, preventing oil residue from remaining on the fine and coarse filter screens and avoiding the problem of frequent cleaning or replacement due to filter screen clogging.

The invention discloses an island and platform all-in-one machine and a control method thereof, and belongs to the technical field of kitchen appliances. The island platform all-in-one machine comprises a dynamic oil screen assembly and a control assembly, the dynamic oil screen assembly is arranged in a machine shell and comprises a first motor, a rotary filter screen connected with the output end of the first motor and a detection unit arranged on the rotary filter screen, and the rotary filter screen is rotationally arranged below an air inlet; liquid in the oil fume can be thrown out by centrifugal motion of the rotary filter screen, so that oil stain accumulation is reduced, the oil fume filtering efficiency is improved, and the detection unit is used for detecting the oil fume concentration; the first motor and the detection unit are both connected with the control assembly, so that the first motor can adjust the rotation speed of the rotary filter screen according to the oil fume concentration, the oil fume filtering effect is dynamically adjusted to adapt to different oil fume working conditions, oil fume filtering efficiency can be improved while oil contamination accumulation is reduced, and the use experience of a user is improved.

A watercraft oil-siphoning device is provided. The device is comprised of a collection attachment that mimics the form and function of an oil filter. The attachment interfaces with the oil filter mounting area using a threaded fastener for a secure connection. A second end of the attachment includes a fastener that accommodates various tubing connectors. Tubing attaches to this fastener through compatible connectors, allowing flexibility in connector types and incorporating a one-way valve to prevent backflow during oil removal. The tubing's other end connects to a cap using a fastener, with the cap sealingly engaging with a container to collect the siphoned oil. The container, made of materials like HDPE or stainless steel, includes a handle for easy handling. The method of use involves sequentially connecting the device components and activating the watercraft to siphon oil through the system for clean and efficient collection.

The utility model discloses an adsorption type oil filter which comprises a main body mechanism and a cooling mechanism, the main body mechanism comprises a barrel body, a guide piece mounted on the inner wall of the barrel body, a plurality of magnetic bars fixed on the inner top wall of the barrel body and extending into the guide piece, a pretreatment shell fixed on one side of the barrel body, a coarse filter screen fixed on the inner wall of the pretreatment shell, and an oil inlet pipe mounted on one side of the pretreatment shell and communicated with an inner cavity of the pretreatment shell; the first connecting pipe is connected with the top end of the pretreatment shell and an inner cavity of the barrel, the second shell is installed on the other side of the barrel, the adsorption medium layer is arranged in an inner cavity of the second shell, the barrel is used for installing other assemblies, and the guiding piece comprises partition plates symmetrically fixed to the inner wall of the barrel and a plurality of sleeves arranged in an annular array and connected with the opposite partition plates; the adsorption type oil filter has the advantages of being good in oil filtering effect and high in practicability.

The utility model discloses a magnetic oil filter which comprises a shell, a filter cover mechanism forming an assembly type cover body structure, a pre-screening mechanism used for pre-screening magnetic oil and a filter element mechanism used for forming a double-filtering structure, and the upper end of the shell is provided with an opening structure. The filter cover mechanism is assembled at an opening in the upper end of the shell, the pre-screening mechanism is arranged on the inner side of the filter cover mechanism, and the filter element mechanism is arranged in the shell. The filter is convenient to disassemble, assemble and maintain while the filter element is replaced, the pre-screening mechanism is arranged, metal impurities in oil entering the filter can be preliminarily pre-screened, abrasion and blockage of the filter element caused by accumulation of the metal impurities are avoided, the service life of the filter element is prolonged, and the service cycle of the filter element is prolonged; the magnetic oil can be doubly filtered, the impurity removal rate is high, and the filtering effect is good.

The utility model relates to the technical field of filtering equipment, in particular to snakegourd rapeseed oil filtering equipment which comprises a base, at least one filtering frame is connected to the base in a sliding mode, a filtering net is connected to the lower end of the filtering frame in a sliding and inserted mode, the filtering net and the filtering frame are fixed through a positioning assembly, and a driving assembly is arranged on the rear side of the base. The filter frame is assembled by the aid of the clamping component, multiple filtering effects are achieved, a user can freely increase or decrease filtering levels according to needs by the aid of design flexibility of the clamping component, and the filter frame can be conveniently detached only by opening the clamping component in maintenance and cleaning links. And the screen can be taken out by unlocking the positioning assembly, so that the cleaning convenience is improved.

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device for ship operation, which comprises a cavity, an oil filtering assembly is movably mounted in the cavity, the oil filtering assembly comprises a sliding frame, a conical filter screen and a buoy, the sliding frame and the buoy are both slidably mounted in the cavity, and the conical filter screen is movably mounted in the cavity. And a rotating shaft is rotationally mounted in the cavity. In the sewage treatment process, the conical filter screen continuously performs alternate operation of forward filtration and reverse washing, the service life of the conical filter screen is prolonged, the sewage treatment efficiency and stability are improved, oil particles are guided to float upwards through the spiral strip, the oil particle collection efficiency is effectively improved, the coalescence effect is enhanced, and the oil particles can be recycled. Through extrusion of the first included angle, continuous and efficient discharge of oil particles is achieved, the situation that the separation effect is affected by local accumulated oil is avoided, the oil particle separation efficiency is further improved, meanwhile, the risk of blockage caused by accumulation of the oil particles on the inner side of the first included angle is avoided, and the stability of sewage treatment is ensured.

An oil filtering assembly and a cooking appliance. The oil filtering assembly comprises an oil filter (20) and a filtering member (10) removably placed above the oil filter (20), the filtering member (10) comprising a first oil filtering screen (11) and a handle (12) attached to the first oil filtering screen (11), the oil filter (20) comprising a second oil filtering screen (21), wherein the first oil filtering screen (11) is capable of being disposed to cover the second oil filtering screen (21) from above to form a two-stage oil filtering structure. The cooking appliance comprises an inner pot (2) for containing food to be cooked, an oil collecting tray (3) removably placed under the inner pot (2), and the oil filtering assembly.

The utility model discloses a gravity settlement multistage filter equipment, including first oil tank, second oil tank and third oil tank, the first oil tank is installed in the top of second oil tank, the second oil tank is installed in the top of third oil tank, the bottom of first oil tank, second oil tank and third oil tank are communicated with the oil pit, the filter mechanism is installed in the oil pit inside, the utility model has the advantages that convenient maintenance, solved the hydraulic oil filter equipment in the process of using, the filter material inside filter equipment is inconvenient to maintain replacement, is difficult to apply convenient and reliability demand high scene, and maintenance difficulty is higher, increased technical staff work load's problem.

The utility model belongs to the technical field of filters, and particularly relates to a novel candle filter which comprises a rack and a filter cartridge arranged on the rack, an electric control cover plate is arranged below the filter cartridge, an oil inlet pipe is arranged at the lower part of the side of the filter cartridge, a candle type filter mechanism is arranged in the filter cartridge, the candle type filter mechanism comprises a plurality of filter pieces uniformly arranged in the filter cartridge, an annular connecting pipe is arranged above the plurality of filter pieces, and a shunt pipe is arranged on the annular connecting pipe; a cylinder cover is arranged above the filter cylinder, a motor is arranged on the cylinder cover, the output end of the motor is connected with a cleaning mechanism, two connectors are arranged at the outer end of the flow dividing pipe, the transverse connector is an oil discharging port, the vertical connector is an air pipe port, the filter piece comprises an inner cavity pipe connected with the annular connecting pipe, and an outer cavity pipe is arranged outside the inner cavity pipe. The lower part of the inner cavity pipe is not in contact with the outer cavity pipe, and a plurality of oil filtering holes are uniformly and circumferentially formed in the side wall of the outer cavity pipe, so that a filter cake layer on the filter element can be effectively cleaned.

The utility model discloses an oil coating device for rust prevention of motor accessories, which relates to the technical field of rust prevention tools of motor accessories and comprises an oil storage tank, a conveying pipe is obliquely arranged on one side of the top of the oil storage tank, and an oil coating assembly is arranged in the conveying pipe; through rotation cooperation of the rotating shaft and the spiral blade, the motor accessory can be automatically pushed to move in the conveying pipe and be immersed in oil; through the cooperation of the spiral blade and the circular through hole, the oil immersion of the motor accessory is more sufficient, and it is ensured that the oil cannot rise along with the spiral blade; redundant anti-rust oil is further filtered through the cooperation of the oil storage box and the oil filter box, and a filter screen on the bottom surface of the oil filter box can filter some fine impurities, so that the cleanliness of the anti-rust oil is ensured, and the anti-rust oil is convenient to recycle; the oil filtering box is matched with the protruding block, the oil filtering box can abut against the outer walls of the two sides of the oil storage tank conveniently, when the oil filtering box needs to be cleaned or accessories need to be taken out, the accessories can be taken out easily through the bent-pipe-shaped handle, and the operation simplicity and convenience of equipment are improved.

A pure pneumatic high-precision oil filtering device comprises an equipment shell, a control assembly, a diaphragm pump, a filtering assembly and a connecting assembly. The equipment shell comprises a fixed frame and a side plate. The control assembly comprises a pneumatic three-way ball valve and a pneumatic ball valve. And the filtering assembly comprises a pre-filter and an oil removal filter. The connecting assembly comprises a first oil inlet pipe, a second oil inlet pipe, a first oil conveying pipe, a second oil conveying pipe, a backflow pipe, a first oil outlet pipe, a second oil outlet pipe and a liquid outlet pipe. Compared with the prior art, the pre-filter is arranged to primarily filter the filtrate, large-particle impurities in the filtrate are filtered, the service life of the decolorizing and filtering equipment is prolonged, and the filter residue cleaning frequency is increased. Meanwhile, the return pipe is arranged, so that filtrate filtered by the oil removal filter can be circularly filtered for multiple times, and a pneumatic ball valve and a pneumatic three-way ball valve are used for controlling, so that a user can control the filtering times in real time according to the actual decoloration effect of the filtrate.