CN216478190U - Integrated oil filter - Google Patents

Abstract

The utility model belongs to the technical field of the hydraulic oil system washes and specifically relates to an integration oil filter is related to, its including carry out the filterable oil tank of first time fluid and feed through in the confession oil return system of oil tank, supply oil return system including connect in the oil tank is used for extracting hydraulic oil and erodees the fuel feeding mechanism of hydraulic oil system pipeline and connect in the oil tank is used for carrying out filterable oil return mechanism of second time to fluid, fuel feeding mechanism one end communicates in the oil-out of hydraulic oil system pipeline, oil return mechanism one end communicates in the oil return opening of hydraulic oil system. This application has the effect of washing that improves hydraulic oil system, reduces the effect to the pipeline damage of hydraulic oil system.

Description

Integrated oil filter

Technical Field

The application relates to the field of hydraulic oil system flushing, in particular to an integrated oil filter.

Background

In the analysis of hydraulic system faults, most faults are caused by oil contamination. The hydraulic system goes through a series of processes such as pre-installation, disassembly, transportation, storage, installation, welding and the like, and the pipelines can not avoid the existence of impurities, so the hydraulic system must be washed.

At present, generally select chemical cleaning system for use to wash when washing, chemical cleaning system includes circulation case, scavenging pump and washing pipeline, and during the washing, chemical cleaning agent has the scavenging pump self-cleaning pipeline to impress in the middle of the hydraulic oil system pipeline, and chemical cleaning agent cleans hydraulic oil system pipeline, and the circulation case once filters fluid to reach clear purpose.

In view of the above-mentioned related arts, the inventor believes that the chemical agent may cause secondary pollution to the hydraulic oil system pipes and may even corrode the hydraulic oil system pipes.

SUMMERY OF THE UTILITY MODEL

In order to improve the washing effect to hydraulic oil system, reduce the damage to hydraulic oil system pipeline, this application provides an integration oil filter.

The application provides an integration oil filter adopts following technical scheme:

the utility model provides an integrated oil filter, including carry out the filterable oil tank of first time fluid with communicate in the confession oil return system of oil tank, supply oil return system including connect in the oil tank is used for extracting hydraulic oil and erodees the fuel feeding mechanism of hydraulic oil system pipeline and connect in the oil tank is used for carrying out filterable oil return mechanism of second time to fluid, fuel feeding mechanism one end communicates in the oil-out of hydraulic oil system pipeline, oil return mechanism one end communicates in the oil return opening of hydraulic oil system.

Through adopting above-mentioned technical scheme, fuel feeding mechanism extracts the fluid of hydraulic oil system, and fuel feeding mechanism provides power to the washing of hydraulic oil system pipeline, fuel feeding mechanism sends into oil inside the back of oil tank with fluid, fluid is at the inside deposit that stews of oil tank, the oil tank filters for the first time to fluid, it filters for the second time to have filtered once fluid and get into in the oil return mechanism, after having advanced twice filtration, impress in the hydraulic oil system pipeline with the oil-out of fluid through oil return mechanism, fluid is after twice filtration, the cleaning quality of fluid has been improved, clean hydraulic oil system pipeline through fluid, compare in chemical reagent, use fluid to produce the possibility of damage to the hydraulic oil system when having reduced clean.

Optionally, the oil supply mechanism includes an oil supply pipeline through which oil supply liquid passes and a power part connected to the oil supply pipeline and used for providing power for oil flow, one end of the oil supply pipeline is connected to an oil outlet of a hydraulic oil system pipeline, and the other end of the oil supply pipeline is communicated with the oil tank.

Through adopting above-mentioned technical scheme, after starting power spare, fluid can get into the inside coarse filtration that carries out of oil tank through supplying oil pipe way from hydraulic oil system pipeline, gets rid of partial impurity, and power spare can provide faster velocity of flow to fluid, improves filterable speed and clean effect.

Optionally, the oil tank is provided with oil feed portion, oil return portion and fixed connection in the sieve of oil tank lateral wall, oil feed portion with oil return portion passes through the sieve is separated, a plurality of sieve meshes have been seted up on the sieve surface.

Through adopting above-mentioned technical scheme, fluid gets into the oil tank, and fluid lets in oil return portion through the sieve from oil feed portion, and the sieve mesh carries out first screening to the impurity in the fluid, reduces the possibility that impurity got into oil return portion, and after the sediment of stewing, partial impurity in the middle of the fluid deposits, and fluid flows out the oil tank from oil return portion.

Optionally, the oil return mechanism comprises an oil return pipeline and a filter box connected to the oil return pipeline and used for secondary filtering, one end of the oil return pipeline is communicated with the bottom of the oil return portion, and the other end of the oil return pipeline is connected to an oil return port of a hydraulic oil system pipeline.

Through adopting above-mentioned technical scheme, fluid gets into the rose box, and the rose box carries out the second filtration to fluid, and the rose box can strengthen the filter effect of fluid, then during fluid flowed into oil return pipeline from the rose box, finally flowed into hydraulic oil system pipeline by oil return pipeline, and the fluid after the filtration at last washes hydraulic oil system pipeline, has improved the clean effect of washing.

Optionally, the oil return pipeline is provided with at least two oil return branches, the number of the filter boxes is at least two, and the filter boxes are communicated with the oil return branches.

Through adopting above-mentioned technical scheme, the user can open the quantity of rose box according to the actual work situation when using rose box to filter fluid, and when a rose box damaged, the filter work can be carried out equally to other rose boxes to ensure filtering, going on smoothly of cleaning work.

Optionally, the oil return mechanism still including connect in return oil pipe line is convenient for examine oily sample portion of examining, examine sample portion and external intercommunication, examine sample portion than the rose box is closer to return oil pipe line's oil-out.

By adopting the technical scheme, after the sample detection part is opened, the filtered oil flows out from the end part of the sample detection part, the quality of the oil is detected, the filtered oil is input into a hydraulic oil system pipeline after being qualified, the filtering is finished, the unqualified oil can be introduced into an oil supply pipeline again, the secondary filtering is carried out, and the cleanliness of the hydraulic oil system pipeline reaches the requirement until the oil quality is qualified.

Optionally, a pressure switch for sensing the pressure inside the filter box is connected inside the filter box, and the power part is communicated with the pressure switch.

Through adopting above-mentioned technical scheme, when the inside jam that takes place of rose box, when pressure switch detected rose box internal pressure grow to the specified value, pressure switch control power spare stop work, supply oil return system stop work this moment, then dredge the rose box, guarantee work safety, improve filterable cleanliness.

Optionally, supply the oil return system still including connect in supply the oil pipe way to be used for adjusting supply the pressure regulating subassembly of oil pressure of oil pipe way, the pressure regulating subassembly is compared the power part is closer to supply the oil inlet of oil pipe way, the pressure regulating subassembly include the pressure regulating pipeline with connect in air-vent valve in the pressure regulating pipeline, pressure regulating pipeline one end communicate in supply the oil inlet of oil pipe way, the other end of pressure regulating pipeline communicate in return the oil-out of oil pipe way.

Through adopting above-mentioned technical scheme, when filtering operation began, the adjustable oil pressure power size that supplies in the oil pipe way of pressure regulating subassembly, when pressure was too big, opened the air-vent valve, fluid passes through the pressure regulating pipeline and gets into back the oil pipe way, with too much fluid once more from returning the oil pipe way and discharging into the hydraulic oil system pipeline, supply oil pipe way's oil pressure to diminish, ensure work safety, and adjustable optimum washing oil pressure improves the cleaning performance.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the oil tank and the oil supply and return system, oil is allowed to stand and precipitate in the oil tank, the oil tank filters the oil for the first time, the once filtered oil enters the oil return mechanism for the second filtration, and the oil is filtered twice, so that the cleaning quality of the oil is improved; the oil supply mechanism is used for extracting oil of the hydraulic oil system, the oil supply mechanism is used for providing power for flushing a pipeline of the hydraulic oil system, the oil is pressed into the pipeline of the hydraulic oil system through an oil outlet of the oil return mechanism, the oil filtered twice is used for cleaning the pipeline of the hydraulic oil system, and compared with a chemical reagent, the possibility of damage to the hydraulic oil system during cleaning is reduced by using the oil;

2. this application is through setting up the pressure regulating subassembly for when filtering work began, the adjustable oil pressure power size of supplying in the oil pipe way of pressure regulating subassembly ensures work safety, and adjustable optimum washing oil pressure improves the cleaning performance.

Drawings

FIG. 1 is a schematic structural diagram of an integrated oil filter in an embodiment of the present application;

FIG. 2 is a schematic structural view of an integrated oil filter with a part of a tank shell cut away according to an embodiment of the application;

fig. 3 is a schematic structural view of the filter box after a part of the structure is cut away.

Description of reference numerals: 1. an oil tank; 11. an oil inlet part; 111. an oil inlet cylinder; 12. an oil return section; 121. an oil return cylinder; 13. a sieve plate; 131. screening holes; 2. a base plate; 3. a supply and return oil system; 31. an oil supply mechanism; 311. an oil supply line; 3111. an oil supply branch; 312. a power member; 313. an oil inlet butterfly valve; 32. an oil return mechanism; 321. an oil return line; 3211. an oil return branch; 322. a filter box; 3221. a filter inlet; 3222. a filter outlet; 3223. a filter element; 3224. a pressure switch; 323. a flow rate valve; 324. a sample detection part; 3241. a sample detection branch; 3242. a sample detection valve; 325. a flow measurement assembly; 3251. a flow measuring branch; 3252. a flow measuring stop valve; 3253. a flow measurement pressure gauge; 33. a pressure balancing mechanism; 331. a voltage regulating component; 3311. a pressure regulating pipeline; 3312. a pressure regulating valve; 332. a pressure measuring assembly; 3321. a pressure measuring pipeline; 3322. a pressure measuring stop valve; 3323. and a pressure measuring gauge.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses integration oil filter. Referring to fig. 1 and 2, an integrated oil filter comprises an oil tank 1 for stabilizing the ground, a bottom plate 2 fixedly connected to the ground, and an oil supply and return system 3 fixedly connected above the bottom plate 2, wherein the bottom plate 2 is located on one side of an oil inlet of the oil tank 1, the oil supply and return system 3 comprises an oil supply mechanism 31 communicated with the oil tank 1 for supplying oil to the interior of the oil tank 1 and an oil return mechanism 32 communicated with the oil tank 1 for guiding out oil in the oil tank 1, one end of the oil supply mechanism 31 is communicated with an oil outlet of a hydraulic oil system pipeline, one end of the oil return mechanism 32 is communicated with an oil inlet of the hydraulic oil system pipeline, the oil supply mechanism 31 extracts oil in the hydraulic oil system, the oil supply mechanism 31 provides power for flushing of the hydraulic oil system pipeline, after the oil supply mechanism 31 supplies the oil into the oil tank 1, the oil is stood and precipitated in the interior of the oil tank 1, the oil tank 1 performs first filtration on the oil, the once filtered oil enters the oil return mechanism 32 for second filtration, after the oil is filtered twice, the oil is pressed into a hydraulic oil system pipeline through an oil outlet of the oil return mechanism 32, the oil is filtered twice, the cleaning quality of the oil is improved, the hydraulic oil system pipeline is cleaned through the oil, and the possibility of damage to a hydraulic oil system during cleaning is reduced.

Referring to fig. 1 and 2, a sieve plate 13 is arranged in the center of the inside of an oil tank 1, the circumferential side wall of the sieve plate 13 is fixedly connected to the inner wall of the oil tank 1, a plurality of sieve holes 131 are uniformly distributed on the surface of the sieve plate 13, the sieve plate 13 divides the oil tank 1 into an oil inlet portion 11 and an oil return portion 12, an oil inlet cylinder 111 is arranged on the side wall of the oil inlet portion 11, an oil return cylinder 121 is arranged on the side wall of the oil return portion 12, the oil inlet cylinder 111 and the oil return cylinder 121 are respectively located at the bottoms of the two opposite sides of the oil tank 1, the number of the oil return cylinders 121 is one, the number of the oil inlet cylinders 111 is at least two, and the number of the oil inlet cylinders 111 is two in the embodiment of the application. Fluid gets into oil tank 1 from oil feed section of thick bamboo 111, and fluid lets in oil return portion 12 through sieve 13 from oil feed portion 11, and sieve mesh 131 carries out the primary screening to the impurity in the fluid, reduces the possibility that impurity got into oil return portion 12, through the sediment of stewing, and partial impurity in the middle of the fluid deposits, and fluid flows out oil tank 1 from oil return section of thick bamboo 121.

Referring to fig. 1 and 2, the oil supply mechanism 31 includes an oil supply pipeline 311 connected to the oil tank 1 and a power component 312 communicated with the oil supply pipeline 311, one end of the oil supply pipeline 311 is connected to an oil outlet of a hydraulic oil system pipeline, the other end of the oil supply pipeline 311 is provided with at least two oil supply branches 3111, the number of the oil supply branches 3111 is equal to the number of the oil inlet cylinders 111, in the embodiment of the present application, the number of the oil supply branches 3111 is two, and the two oil supply branches 3111 are respectively communicated with the two oil inlet cylinders 111; the power parts 312 are fixedly connected to the upper surface of the bottom plate 2, the power parts 312 are communicated with the oil supply branch 3111, the number of the power parts 312 is at least two, the number of the power parts 312 is two in the embodiment of the present invention, the two power parts 312 are respectively communicated with the two oil supply branches 3111, the power parts 312 can adopt a rotor pump suitable for pumping viscous liquid, such as a gear pump, a screw pump or a flexible vane pump, etc., the power parts 312 adopt a large-flow screw pump in the embodiment of the present invention, and a better flushing effect is achieved on a hydraulic oil system pipeline needing to be flushed. After the screw pump is started, oil can enter the oil tank 1 from a hydraulic oil system pipeline through the oil supply pipeline 311 to be roughly filtered, partial impurities are removed, the two oil supply branch pipelines 3111 are arranged, and the screw pump can provide faster flow speed for the oil, so that the filtering speed and the cleaning effect are improved.

Referring to fig. 1 and 2, the oil supply mechanism 31 further includes a plurality of oil inlet butterfly valves 313, in the embodiment of the present application, the number of the oil inlet butterfly valves 313 is five, one of the oil inlet butterfly valves 313 is located at an oil inlet of the oil supply pipeline 311 to control the overall oil inlet amount and oil pressure in the oil supply pipeline 311, and two ends of the screw pump are both communicated with one oil inlet butterfly valve 313. When oil is fed, the speed of the oil entering the oil tank 1 can be controlled by opening and closing the oil feeding butterfly valve 313, the screw pump is protected, the oil feeding butterfly valve 313 at the front end of the screw pump plays a role in limiting the flow, and the oil feeding butterfly valve 313 at the rear end of the screw pump plays a role in limiting the pressure. When the screw pump is started, the oil inlet butterfly valves 313 at the two ends of the screw pump are closed firstly, after the screw pump is started, the oil inlet butterfly valve 313 at the front end of the screw pump is opened slowly, and after the screw pump is normally pressurized, the oil inlet butterfly valve 313 at the rear end of the screw pump is opened slowly until the screw pump is opened completely.

Referring to fig. 1 and 3, the oil return mechanism 32 includes an oil return pipeline 321 communicated with the oil return cylinder 121 and a filter tank 322 communicated with the oil return pipeline 321, one end of the oil return pipeline 321 is communicated with the oil return cylinder 121, the other end of the oil return pipeline 321 is communicated with an oil inlet of a hydraulic oil system pipeline, the oil return pipeline 321 is provided with at least two oil return branches 3211, in the embodiment of the present application, the number of the oil return branches 3211 is two, and the oil flows after passing through the end portions of the two oil return branches 3211, the filter tank 322 is fixedly connected to the upper surface of the base plate 2, the number of the filter tank 322 is at least two, in the embodiment of the present application, the number of the oil return branches 3211 is equal to the number of the filter tank 322, and the two filter tanks 322 are respectively communicated with the two oil return branches 3211, so that when a user filters the oil tank 322, the number of the filter tanks 322 can be opened according to an actual working condition, and when one filter tank 322 is damaged, the other filter tank 322 may also perform a filtering operation to ensure smooth filtering and cleaning operations.

Referring to fig. 1 and 3, a filter inlet 3221 and a filter outlet 3222 through which oil passes are disposed on a circumferential side wall of the filter tank 322, the filter inlet 3221 and the filter outlet 3222 are both communicated with the oil return branch 3211, the filter inlet 3221 is located above the filter outlet 3222, a plurality of filter elements 3223 for filtering oil are connected to the top of the filter tank 322 in a threaded manner, in this embodiment, the number of the filter elements 3223 is three, a pressure switch 3224 is disposed on an inner wall of the filter tank 322, the pressure switch 3224 is opposite to the filter outlet 3222, a control system of the screw pump is connected to the pressure switch 3224, the oil enters the filter tank 322 from the filter inlet 3221 at the top, the oil is filtered for the second time through the filter elements 3223, the three filter elements 3223 can enhance a filtering effect of the oil, the oil flows into the return branch from the filter outlet 3222, and finally flows into the hydraulic oil return line 321, and the filtered oil flushes a pipeline of the hydraulic oil system, the cleaning effect of the washing is improved.

When the pressure switch 3224 detects that the pressure at the filter outlet 3222 increases to a predetermined value, the filter tank 322 is blocked, the filter element 3223 needs to be replaced in time, and at this time, the pressure switch 3224 controls the screw pump to stop working, so that the oil supply and return system 3 stops working, then the top of the filter tank 322 is detached, the filter element 3223 is replaced, the working safety is ensured, and the oil filtering effect is improved.

Referring to fig. 1 and 2, the oil return mechanism 32 further includes a plurality of flow rate valves 323, in the embodiment of the present invention, the number of the flow rate valves 323 is five, one of the flow rate valves 323 is located at an oil outlet of the oil return pipeline 321 to control the oil output and the oil pressure of the whole oil return pipeline 321, and maintain a relatively good flow rate of the oil, so as to perform a relatively good cleaning effect on the hydraulic oil system pipeline, and both ends of the filter box 322 are communicated with one flow rate valve 323. When oil enters the filter tank 322, the speed of the oil entering the filter tank 322 can be controlled by opening and closing the flow rate valve 323, the filter tank 322 is protected, when the filter tank 322 is started, the flow rate valves 323 at the two ends of the filter tank 322 are firstly closed, after the filter tank 322 is started, the flow rate valve 323 at the front end of the filter tank 322 is slowly opened, and after the filter tank 322 normally works, the flow rate valve 323 at the rear end of the filter tank 322 is slowly opened until all the oil is opened.

Referring to fig. 1 and 2, the oil return mechanism 32 further includes a sample detection portion 324, the sample detection portion 324 includes a sample detection branch 3241 communicated with one oil return branch 3211 and a sample detection valve 3242 connected to the sample detection branch 3241, the sample detection valve 3242 is close to an end of the sample detection branch 3241, the oil passes through the sample detection portion 324 after being filtered by the filter box 322, the sample detection valve 3242 is opened, the filtered oil flows out from the end of the sample detection branch 3241, then the sample detection valve 3242 is closed, at this time, the quality of the oil is detected, the filtered oil is input into a hydraulic oil system pipeline after being qualified, the filtering is finished, the oil can be introduced into the oil supply pipeline 311 again after being unqualified, the oil is filtered and cleaned again until the quality of the oil is qualified, and the cleanliness of the hydraulic oil system pipeline reaches the requirement.

Referring to fig. 1 and 2, the oil return mechanism 32 further includes a flow measurement component 325 communicated with the main line of the oil return pipeline 321, the flow measurement component 325 is closer to the oil outlet of the oil return pipeline 321 than the filter box 322, the flow measurement component 325 includes a flow measurement branch 3251 communicated with the oil return pipeline 321, a flow measurement stop valve 3252 and a flow measurement pressure gauge 3253 both communicated with the flow measurement branch 3251, the flow measurement stop valve 3252 is communicated with the flow measurement branch 3251, the flow measurement pressure gauge 3253 is communicated with the end portion of the flow measurement branch 3251, the flow measurement stop valve 3252 protects the flow measurement pressure gauge 3253, reduces the possibility that the oil directly impacts the flow measurement pressure gauge 3253, suitably prolongs the service life of the flow measurement pressure gauge 3253, the flow measurement component 325 can detect the pressure of the oil return pipeline 321, the flow measurement stop valve 3252 is opened during detection, the oil enters the flow measurement branch 3251 from the return branch to the flow measurement pressure gauge 3253, and the open and close state of the flow rate valve 323 is adjusted according to the numerical indication of the flow measurement pressure gauge 3253, until the reading of the flow measurement pressure gauge 3253 shows normal, so as to flush the hydraulic oil system pipeline normally, and then the flow measurement stop valve 3252 is closed.

Referring to fig. 1 and 2, the oil supply and return system 3 further includes a pressure-balancing mechanism 33, the pressure-balancing mechanism 33 includes a pressure-regulating component 331 and a pressure-measuring component 332, the pressure-regulating component 331 includes a pressure-regulating pipeline 3311 communicated between the oil supply pipeline 311 and the oil return pipeline 321 and a pressure-regulating valve 3312 communicated in the pressure-regulating pipeline 3311, one end of the pressure-regulating pipeline 3311 is communicated with the oil supply pipeline 311, the other end of the pressure-regulating pipeline 3311 is communicated with the oil return pipeline 321, and two ends of the pressure-regulating pipeline 3311 are respectively close to an oil inlet of the oil supply pipeline 311 and an oil outlet of the oil return pipeline 321, when the filtering operation starts, the pressure-regulating component 331 can regulate the pressure of the oil in the oil supply pipeline 311, when the pressure is too high, the pressure-regulating valve 2 is opened, the oil enters the oil return pipeline 321 through the pressure-regulating pipeline 3311, the too much oil is discharged into the hydraulic oil system pipeline from the oil return pipeline 321 again, the oil pressure of the oil supply pipeline 311 is reduced, and the operation safety is ensured, and the most suitable flushing oil pressure can be adjusted, and the cleaning effect is improved.

Referring to fig. 1 and 2, the pressure measuring module 332 includes a pressure measuring pipeline 3321 connected to the trunk line of the oil supply pipeline 311, a pressure measuring stop valve 3322 and a pressure measuring pressure gauge 3323 both connected to the pressure measuring pipeline 3321, an oil inlet of the pressure measuring pipeline 3321 is closer to an oil inlet of the oil supply pipeline 311 than an oil inlet of the pressure regulating pipeline 3311, the pressure measuring stop valve 3322 is connected to the pressure measuring pipeline 3321, the pressure measuring pressure gauge 3323 is far away from one end of the pressure measuring pipeline 3321 at which the oil inlet is located, the pressure measuring stop valve 3322 protects the pressure measuring pressure gauge 3323, reduces the possibility that oil always impacts the pressure measuring pressure gauge 3323, and properly prolongs the service life of the pressure measuring pressure gauge 3323.

The pressure measuring component 332 can detect the pressure of the oil supply pipeline 311, open the pressure measuring stop valve 3322, allow oil to enter the pressure measuring pipeline 3321 from the oil supply pipeline 311 to reach the pressure measuring pressure gauge 3323, adjust the opening and closing state of the pressure measuring stop valve 3322 through the indication of the pressure measuring pressure gauge 3323, allow the oil to enter the oil return pipeline 321 through the pressure adjusting pipeline 3311, discharge excessive oil from the oil return pipeline 321, reduce the oil pressure of the oil supply pipeline 311 until the indication of the pressure measuring pressure gauge 3323 displays a normal range, and then close the pressure measuring stop valve 3322 and the pressure measuring stop valve 3322.

The implementation principle of an integration oil filter of the embodiment of the application is as follows: when the hydraulic oil pump starts to work, the oil supply pipeline 311 and the oil return pipeline 321 are communicated with a hydraulic oil system pipeline, then the oil inlet butterfly valves 313 at two ends of the screw pump are closed, the flow rate valves 323 at two ends of the filter box 322 are closed, then the screw pump is started, the oil inlet butterfly valve 313 at the front end of the screw pump is opened slowly, then the oil inlet butterfly valve 313 close to an oil inlet of the oil supply pipeline 311 and the pressure measuring stop valve 3322 are opened, the pressure measuring pressure gauge 3323 displays the oil pressure, if the oil pressure is large, the pressure measuring stop valve 3322 and the flow rate valve 323 close to an oil outlet of the oil return pipeline 321 can be opened, so that part of oil flows out of the oil return pipeline 321 through the pressure regulating pipeline 3311, the opening and closing angle of the oil inlet butterfly valve 313 is reduced, and the display number of the pressure measuring pressure gauge 3323 is within a normal range. After the screw pump is normally pressurized, the oil inlet butterfly valve 313 at the rear end of the screw pump is slowly opened until the screw pump is completely opened.

Fluid gets into oil tank 1, and fluid passes through sieve 13, filters for the first time, and fluid after the standing, opens rose box 322, slowly opens the velocity of flow valve 323 of rose box 322 front end, and fluid advances from the top and strains mouthful 3221 and get into rose box 322, and fluid carries out the second time to fluid when filter element 3223, then fluid flows into the backward flow branch road from going out strain mouthful 3222, slowly opens the velocity of flow valve 323 of rose box 322 rear end, opens up to whole.

At this time, the flow measurement stop valve 3252 is opened, the oil enters the flow measurement branch 3251 from the return branch to reach the position of the flow measurement pressure gauge 3253, the flow measurement pressure gauge 3253 displays the oil pressure, the opening and closing state of the flow rate valve 323 close to the oil outlet of the oil return pipeline 321 is adjusted until the indication number of the flow measurement pressure gauge 3253 is displayed normally, and then the flow measurement stop valve 3252 is closed.

Fluid filters back through filter box 322 and passes through and examine a kind portion 324, can open and examine a kind valve 3242, and fluid self-checking branch 3241's after the filtration tip flows out, later closes and examines kind valve 3242, detects the quality of fluid this moment, will filter after qualified fluid input hydraulic oil system pipeline in, stop filtering, unqualifiedly can let in fluid oil supply pipe 311 once more, filter once more, and is qualified until fluid quality.

When the pressure switch 3224 detects that the pressure at the filter outlet 3222 increases to a predetermined value, the pressure switch 3224 controls the screw pump to stop working, at this time, the oil supply and return system 3 stops working, and then the user removes the top of the filter tank 322 and replaces the filter element 3223.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. An integrated oil filter is characterized in that: including carrying out filterable oil tank (1) of first time fluid and communicate in the confession oil return system (3) of oil tank (1), confession oil return system (3) including connect in oil tank (1) is used for extracting hydraulic oil and erodees oil supply mechanism (31) of hydraulic oil system pipeline and connect in oil tank (1) is used for carrying out filterable oil return mechanism (32) of second time to fluid, oil supply mechanism (31) one end communicates in the oil-out of hydraulic oil system pipeline, oil return mechanism (32) one end communicates in the oil return opening of hydraulic oil system.

2. An integrated oil filter according to claim 1, characterised in that: the oil supply mechanism (31) comprises an oil supply pipeline (311) through which oil supply liquid passes and a power part (312) connected to the oil supply pipeline (311) and used for providing power for oil liquid flowing, one end of the oil supply pipeline (311) is connected to an oil outlet of a hydraulic oil system pipeline, and the other end of the oil supply pipeline (311) is communicated with the oil tank (1).

3. An integrated oil filter according to claim 2, characterised in that: oil tank (1) is provided with oil feed portion (11), oil return portion (12) and fixed connection in sieve (13) of oil tank (1) lateral wall, oil feed portion (11) with oil return portion (12) pass through sieve (13) are separated, a plurality of sieve meshes (131) have been seted up on sieve (13) surface.

4. An integrated oil filter according to claim 3, characterised in that: oil return mechanism (32) are including returning oil pipe way (321) and connecting in returning oil pipe way (321) and be used for the filterable rose box (322) of second time going on, return oil pipe way (321) one end communicate in oil return portion (12) bottom, the other end that returns oil pipe way (321) is connected in the oil return mouth of hydraulic oil system pipeline.

5. An integrated oil filter according to claim 4 wherein: the oil return pipeline (321) is provided with at least two oil return branches (3211), the number of the filter boxes (322) is at least two, and the filter boxes (322) are communicated with the oil return branches (3211).

6. An integrated oil filter according to claim 5, characterised in that: oil return mechanism (32) still including connect in oil return pipeline (321) are convenient for examine oily sample portion (324) of examining, examine sample portion (324) and external intercommunication, examine sample portion (324) than rose box (322) are more close to oil-out of oil return pipeline (321).

7. An integrated oil filter according to claim 6, characterised in that: a pressure switch (3224) used for sensing the pressure inside the filter tank (322) is connected inside the filter tank (322), and the power part (312) is communicated with the pressure switch (3224).

8. An integrated oil filter according to claim 7, characterised in that: supply oil return system (3) still including connect in supply oil pipe way (311) to be used for adjusting pressure regulating subassembly (331) of supply oil pipe way (311) oil pressure, pressure regulating subassembly (331) compare power part (312) are closer to supply the oil inlet of oil pipe way (311), pressure regulating subassembly (331) including pressure regulating pipeline (3311) with connect in air-vent valve (3312) in pressure regulating pipeline (3311), pressure regulating pipeline (3311) one end communicate in supply the oil inlet of oil pipe way (311), the other end of pressure regulating pipeline (3311) communicate in the oil-out of oil return pipeline (321).

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