CN207145379U - A kind of filter of hydraulic power unit - Google Patents

Abstract

The utility model discloses a kind of filter of hydraulic power unit, including drain line, end cap, the filter mechanism for being filtered to fluid is provided with drain line, screen pack that filter mechanism includes being arranged on the one end of drain line away from oil drum and being wrapped in the filtering cover in end cap, be arranged on filtering cover the week side of boss inwall, it is opened in the oil leaking hole of filtering cover the week side of boss, the circumferentially rotating of end cap is connected on drain line and the week side of boss offers oil guiding hole for being used cooperatively with oil leaking hole.The utility model has advantages below and effect：This programme utilizes new mechanical structure, and when end cap being turned into oil guiding hole being overlapped with the position of oil leaking hole, fluid aerial drainage can go out out of oil guiding hole and oil leaking hole；Fluid is filtered using screen pack simultaneously, now most of impurity in fluid can be filtered, and the fluid that aerial drainage is gone out out of oil guiding hole can be added in oil drum again, finally realize the recycling of fluid, the number for buying new fluid is reduced, reduces the consumption of fund.

Description

A kind of filter of hydraulic power unit

Technical field

Technical field of hydraulic equipment is the utility model is related to, more particularly to a kind of filter of hydraulic power unit.

Background technology

Hydraulic station is also known as hydraulic power unit, the rotation of motor driven oil pump, and pump is bought oil after oil suction from fuel tank, mechanical energy is converted For the pressure energy of hydraulic oil, hydraulic oil passes through integrated package（Or valve group is closed）After direction, pressure, Flow-rate adjustment being realized by hydraulic valve Be transferred to through external pipeline in the oil cylinder or oil motor of hydraulic machinery, so as to control the conversion in hydraulic motor direction, strength it is big Small and speed speed, various hydraulic machineries are promoted to do work.

At present, Publication No. CN203321945U, the day for announcing disclose a kind of hydraulic pressure for Chinese patent on December 4th, 2013 Pumping plant, including motor and oil drum, motor and oil drum are linked together, and the Oil pump flange body of the junction of motor and oil drum is provided with Integrated valve block, integrated valve block are provided with two groups of oil-outs, solenoid directional control valve and the flow divider-combiner that two oil-outs are one group, oil Pump communicates with solenoid directional control valve, and another branch directly gangs up another group of oil-out.

This kind of hydraulic power unit after the pressure oil of oil pump exceedes the pressure of setting, open, and allows pressure oil to be back to by overflow valve Oil drum, there can be impurity in the fluid after multiple backflow in oil drum, therefore need to replace the fluid in oil drum, now utilize Fuel outlet, open can be in fuel feeding bucket after the end cap on fuel outlet old fluid spill out, new fluid is then passed through into oiling Mouth is added in oil drum；And need to buy new fluid when changing fluid, add the consumption of fund.

Utility model content

The purpose of this utility model is to provide a kind of filter of hydraulic power unit, can be to the old oil gone out out of oil drum Liquid is compared effective filtering to reach the effect of recycling fluid.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of mistake of hydraulic power unit Filter device, including drain line positioned at oil drum lower end, be arranged on the drain line away from the end cap on oil drum one end, it is described to drain the oil The filter mechanism for being filtered to fluid is provided with pipe, the filter mechanism includes being arranged on the drain line away from oil Bucket one end on and be wrapped in the end cap filtering cover, be arranged on the filtering cover the week side of boss inwall screen pack, open up In the oil leaking hole of the filtering cover the week side of boss, the circumferentially rotating of the end cap is connected on the drain line and the week side of boss is offered and is used for The oil guiding hole being used cooperatively with the oil leaking hole.

By using such scheme, when oil drum needs to drain the oil, circumferentially rotated and be connected on drain line using end cap, operated Personnel can circumferentially rotate end cap；Wherein using the oil leaking hole opened up on the oil guiding hole and filtering cover opened up on end cap, work as operation When end cap is turned to oil guiding hole and overlapped with the position of oil leaking hole by personnel, now drain line can be opened, the fluid in oil drum Aerial drainage it can be gone out out of oil guiding hole and oil leaking hole；Simultaneously using the screen pack being arranged on filtering cover inwall, out of oil leaking hole The fluid that aerial drainage is gone out just needs the filtration by screen pack, and now most of impurity in fluid can be by screen pack mistake Filter, the fluid that aerial drainage is gone out out of oil guiding hole can be added in oil drum again after collecting, final that fluid can be achieved Recycling, reduce the number for buying new fluid, reduce the consumption of fund；And when oil drum needs to refuel, operating personnel Same rotary end cover so that the oil leak hole site on the oil guiding hole and filtering cover on end cap is non-interference, now drain line State in sealing.

It is of the present utility model to be further arranged to：Restraining position ring block, the drain line are set on the week side of boss inwall of the end cap The week side of boss outer wall on offer for the spacing ring insertion stopper slot.

By using such scheme, using the spacing ring set on the week side of boss inwall of end cap, and on drain line the week side of boss outer wall The stopper slot opened up, now spacing ring can be embedded in stopper slot, and spacing ring can rotate in stopper slot inner circumferential, finally End cap is realized to circumferentially rotate and is connected on drain line using spacing ring；Spacing ring is also carried out to the axial location of end cap simultaneously It is spacing, avoid end cap from being come off from drain line, when needing oil leaking hole to be overlapped with the position of oil guiding hole so as to aerial drainage fluid, behaviour Make the position that circumferentially rotates end cap i.e. adjustable oil guiding hole of the personnel along end cap so that oil guiding hole overlaps with oil leaking hole.

It is of the present utility model to be further arranged to：The spacing ring is made up of quality of rubber materials, and the outer wall of the spacing ring supports Tightly on the inwall of the stopper slot.

By using such scheme, when end cap is embedded in stopper slot using spacing ring so that end cap circumferentially rotates connection When on drain line, it is pushed against using the outer wall of spacing ring on the inwall of stopper slot, and spacing ring is quality of rubber materials, due to rubber Coefficient of friction it is larger, therefore after spacing ring is pushed against in stopper slot, between spacing ring and stopper slot mutually motion when friction Power will be bigger, and these frictional force are damping force when may make up rotary end cover so that operating personnel in rotary end cover more Add steady；Simultaneously when end cap turns to oil leaking hole and overlapped with Oil Guide hole site for aerial drainage fluid, end cap using spacing ring and Frictional force between stopper slot so that end cap can reduce oil guiding hole and oil leaking hole in aerial drainage fluid with more stable fixation Between the possibility that shifts of position；Wherein because the spacing ring of quality of rubber materials is soft, when operating personnel are needed end When disassembling, operating personnel only need to apply the pulling force for being directed away from drain line side on end cap lid, and spacing ring can be Deformed upon in the presence of pulling force, the spacing ring after deformation can depart from out of stopper slot, finally end cap is detachably connected On drain line.

It is of the present utility model to be further arranged to：The week side of boss of the filtering cover is fixed with connection ring, the connection ring it is outer Connection external screw thread is provided with wall, is provided with the inwall of the drain line for the company for the connection external screw thread threaded connection Connect internal thread.

By using such scheme, after the fluid in oil drum go out out of oil guiding hole by aerial drainage, the impurity in fluid is It can be fallen by filter screen filtration, now these impurity will be deposited in filtering cover, the connection ring fixed using filtering cover the week side of boss, and Connection external screw thread on connection ring outer wall is threaded in the connection internal thread drained the oil on inside pipe wall；When need clear up filtering cover During interior impurity, operating personnel apply the pulling force for being directed away from drain line side first on end cap so that end cap is from drain line On disassemble, then only need rotate filtering cover so that connection external screw thread spiral shell out of connection on drain line in connection ring Back-out in line and, filtering cover can now be disassembled from drain line, facilitate operating personnel to enter the impurity in filtering cover Row cleaning.

It is of the present utility model to be further arranged to：It is provided with the filtering cover described for the screen pack to be pushed against Ring spring on the week side of boss inwall of filtering cover.

, will using ring spring when screen pack is placed on the week side of boss inwall of filtering cover by using such scheme Screen pack is pushed against on the week side of boss inwall of filtering cover, and now screen pack can be fitted on the inwall of filtering cover, reduce fluid from Direct aerial drainage is gone out in gap between screen pack and filtering cover, can finally increase the filtering to fluid of being gone out out of oil leaking hole Effect.

It is of the present utility model to be further arranged to：It is fixed with the week side of boss inwall of the end cap for being pushed against the filtering Sealing rubber pad on cover outer wall.

By using such scheme, due to that may have gap between end cap and filtering cover, when end cap turns to oil guiding hole With the position of oil leaking hole it is non-interference when, the gap internal leakage that fluid will be between end cap and filtering cover is gone out；Now utilize Sealing rubber pad on end cap the week side of boss inwall, and sealing rubber pad is pushed against on the outer wall of filtering cover, now sealing rubber pad is The gap between end cap and filtering cover can be eliminated, so as to reduce the possibility that fluid is gone out from gap internal leakage.

It is of the present utility model to be further arranged to：The oil leaking hole is provided with multiple and uniform along the week side of boss of the filtering cover It is spaced apart.

By using such scheme, multiple and along filtering cover the week side of boss uniform intervals are set to be distributed using by oil leaking hole, with The oil guiding hole that oil leaking hole is used cooperatively just has multiple, and now drain line can be added by multiple oil leaking hole aerial drainage fluid The efficiency of aerial drainage fluid and filtering fluid.

It is of the present utility model to be further arranged to：The more the week side of boss uniform intervals along the end cap are offered on the end cap The anti-slip tank of distribution.

By using such scheme, when operating personnel are held, and rotary end cover is being needed on end cap, it is opened in using more Anti-slip tank on end cap, the facies palmaris of palm can be embedded in anti-slip tank, and now anti-slip tank can play anti-skidding effect, reduced The phenomenon skidded during operating personnel's rotary end cover.

In summary, the utility model has the advantages that：

1. when oil drum needs to drain the oil, operating personnel's rotary end cover, using on the oil guiding hole and filtering cover opened up on end cap The oil leaking hole opened up, when end cap is turned to oil guiding hole by operating personnel to be overlapped with the position of oil leaking hole, now drain line It is opened, the fluid in oil drum aerial drainage can go out out of oil guiding hole and oil leaking hole；Utilize and be arranged on filtering cover inwall simultaneously Screen pack, the fluid that aerial drainage is gone out out of oil leaking hole just needs the filtration by screen pack, now the big portion in fluid Impurity is divided to be fallen by filter screen filtration, the fluid that aerial drainage is gone out out of oil guiding hole can be added to oil drum again after collecting It is interior, the final recycling that fluid can be achieved, the number for buying new fluid is reduced, reduces the consumption of fund.

2. when needing to clear up in filtering cover the impurity accumulated, apply first on end cap and be directed away from drain line side Pulling force so that end cap disassembles from drain line, is threaded in and puts followed by the connection external screw thread on connection ring outer wall In connection internal thread on tube inner wall, under filtering cover can be dismantled from drain line after now operating personnel's rotation filtering cover Come, facilitate operating personnel to clear up the impurity in filtering cover.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model structure sectional view.

In figure：1st, drain line；11st, internal thread is connected；12nd, stopper slot；2nd, end cap；21st, oil guiding hole；22nd, spacing ring；23、 Sealing rubber pad；24th, anti-slip tank；3rd, filter mechanism；31st, filtering cover；311st, connection ring；312nd, external screw thread is connected；32nd, filter Net；33rd, oil leaking hole；4th, ring spring.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

A kind of filter of hydraulic power unit, reference picture 1, the filter of this kind of hydraulic power unit include being located at oil drum lower end The place and drain line 1 being integrally disposed upon on oil drum, wherein drain line 1 extend along vertically downward direction；Drain line 1 is away from oil drum Filter mechanism 3 is connected with one end（Reference picture 2）, filter mechanism 3 to the fluid that aerial drainage is gone out out of drain line 1 for carrying out Filter, so that the fluid after filtering can be re-injected into oil drum, reaches the effect of recycling.

Reference picture 2, filter mechanism 3 include filtering cover 31, screen pack 32, oil leaking hole 33；The section of wherein filtering cover 31 is in " Qian " font and it is located at the one end of drain line 1 away from oil drum, while the week side of boss of filtering cover 31 has been wholely set connection ring 311, even Connect the central axis of the central axis of ring 311 and filtering cover 31 on the same line；And the company of offering on the outer wall of connection ring 311 External screw thread 312 is connect, while offers what is be threadedly coupled for connection external screw thread 312 on inwall of the drain line 1 away from oil drum one end Connect internal thread 11；Now being detachably connected between drain line 1 can be achieved in filtering cover 31.

Reference picture 2, screen pack 32 is in a ring and for being fitted in the week side of boss inwall of filtering cover 31, wherein this kind of screen pack 32 be fiber glass filtering net, and fiber glass filtering net is made up of the continuous monofilament glass fibre of high intensity, in incremental structure, caught It is good to catch rate height, coating cloud isolation effect, preferably fluid can be filtered；Simultaneously annular elastomeric has been embedded in positioned at filtering cover 31 Spring 4, the outer wall of ring spring 4 are pushed against on screen pack 32, can be now pushed against screen pack 32 in the week side of boss of filtering cover 31 On wall, reduce the possibility that gap is produced between screen pack 32 and the inwall of filtering cover 31.

Reference picture 2, oil leaking hole 33 is opened in the week side of boss of filtering cover 31, and oil leaking hole 33 itself is rounded, wherein oil leaking hole 33 have the week side of boss that three and uniform intervals are distributed in filtering cover 31（Reference picture 1）；The fluid that aerial drainage is gone out out of drain line 1 exists After the filtering of screen pack 32, you can aerial drainage is gone out out of oil leaking hole 33, can finally complete the filtering to fluid.

Reference picture 2, the end cap 2 for being wrapped on filtering cover 31 is provided with the one end of drain line 1 away from oil drum, The section of end cap 2 is equally in " Qian " font；Glue bonding restraining position ring block 22, spacing ring 22 are used wherein on the week side of boss inwall of end cap 2 It is made up of quality of rubber materials and the center of circle of spacing ring 22 is on the central axis of end cap 2；Opened up simultaneously on the week side of boss outer wall of drain line 1 Limited location groove 12, stopper slot 12 is in a ring and the center of circle is on the central axis of drain line 1；End cap 2 is embedded in using spacing ring 22 In stopper slot 12, and the outer wall of spacing ring 22 is pushed against on the inwall of stopper slot 12, you can realize end cap 2 circumferentially rotate connection and Axial limiting is on drain line 1.

Reference picture 1, radius and oil leaking hole 33 radius identical, three oil guiding holes 21 are offered on the week side of boss outer wall of end cap 2, Three oil guiding holes 21 are used to be used cooperatively with three oil leaking holes 33, after end cap 2, which turns to oil leaking hole 33, to be overlapped with oil guiding hole 21, Fluid can go out from oil guiding hole 21 and aerial drainage in oil leaking hole 33.

Reference picture 2, also there is sealing rubber pad 23 with glue bonding on the week side of boss inwall of end cap 2, when end cap 2 is wrapped in filtering After on lid 31, sealing rubber pad 23 can be pushed against on the outer wall of filtering cover 31；More are wherein further opened with the outer wall of end cap 2 Anti-slip tank 24（Reference picture 1）, and the week side of boss uniform intervals distribution of the more anti-slip tanks 24 along end cap 2.

Principle：Reference picture 2, when oil drum needs to drain the oil, operating personnel's rotary end cover 2, when end cap 2 turns to oil guiding hole 21 After being overlapped with the position of oil leaking hole 33, drain line 1 can communicate with the external world, and drain line 1 can be opened, and the fluid in oil drum is Aerial drainage it can be gone out out of oil guiding hole 21 and oil leaking hole 33；Simultaneously using the screen pack 32 being arranged on the inwall of filtering cover 31, from leakage The fluid that aerial drainage is gone out in oilhole 33 just needs the filtration by screen pack 32, now most of impurity in fluid Filtered out by screen pack 32, the fluid that aerial drainage is gone out out of oil guiding hole 21 can be added in oil drum again after collecting, most The recycling of fluid can be achieved eventually, reduce the number for buying new fluid, reduce the consumption of fund.

Reference picture 2, wherein after the fluid whole aerial drainage in oil drum, operating personnel just need to clear up in filtering cover 31 Impurity, now operating personnel apply the pulling force for being directed away from the side of drain line 1 first on end cap 2, now spacing ring 22 produces After raw deformation, spacing ring 22 can depart from out of stopper slot 12, so that end cap 2 disassembles from drain line 1；Then behaviour Make personnel and rotate filtering cover 31, after filtering cover 31 is screwed down from drain line 1, you can the impurity in processing filtering cover 31.

Reference picture 2, when oil drum needs to refuel, operating personnel rotate filtering cover 31 first so that the company on filtering cover 31 Connect ring 311 to be threaded on drain line 1, so as to complete the installation of filtering cover 31；Then apply on end cap 2 towards drain line The thrust of 1 side, elastic deformation is produced after now spacing ring 22 is pushed against on the outer wall of drain line 1, when spacing ring 22 is moved to limit Behind the position of position groove 12, spacing ring 22 is embedded in stopper slot 12 after elastic recovery can occur, so as to complete the peace of end cap 2 Dress；Last rotary end cover 2 so that the oil guiding hole 21 on end cap 2 and the position of oil leaking hole 33 on filtering cover 31 are non-interference, now Drain line 1 is the state that can be at sealing, and fluid can be added in oil drum by operating personnel.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (8)

1. a kind of filter of hydraulic power unit, including the drain line positioned at oil drum lower end（1）, be arranged on the drain line（1） Away from the end cap on oil drum one end（2）, it is characterised in that：The drain line（1）On be provided with for being filtered to fluid Filter mechanism（3）, the filter mechanism（3）Including being arranged on the drain line（1）On one end away from oil drum and it is wrapped in institute State end cap（2）Interior filtering cover（31）, be arranged on the filtering cover（31）Screen pack on the week side of boss inwall（32）, be opened in it is described Filtering cover（31）The oil leaking hole of the week side of boss（33）, the end cap（2）Circumferentially rotate and be connected to the drain line（1）Upper and the week side of boss is opened Provided with for the oil leaking hole（33）The oil guiding hole being used cooperatively（21）.

A kind of 2. filter of hydraulic power unit according to claim 1, it is characterised in that：The end cap（2）The week side of boss Restraining position ring block is set on inwall（22）, the drain line（1）The week side of boss outer wall on offer for the spacing ring（22）Embedded Stopper slot（12）.

A kind of 3. filter of hydraulic power unit according to claim 2, it is characterised in that：The spacing ring（22）By rubber Glue material texture is into the spacing ring（22）Outer wall be pushed against the stopper slot（12）Inwall on.

A kind of 4. filter of hydraulic power unit according to claim 1, it is characterised in that：The filtering cover（31）Week Side is fixed with connection ring（311）, the connection ring（311）Outer wall on be provided with connection external screw thread（312）, the drain line （1）Inwall on be provided with for supply the connection external screw thread（312）The connection internal thread of threaded connection（11）.

A kind of 5. filter of hydraulic power unit according to claim 1, it is characterised in that：The filtering cover（31）Inside set It is equipped with and is used for the screen pack（32）It is pushed against the filtering cover（31）The week side of boss inwall on ring spring（4）.

A kind of 6. filter of hydraulic power unit according to claim 1, it is characterised in that：The end cap（2）The week side of boss It is fixed with inwall for being pushed against the filtering cover（31）Sealing rubber pad on outer wall（23）.

A kind of 7. filter of hydraulic power unit according to claim 1, it is characterised in that：The oil leaking hole（33）Set Have multiple and along the filtering cover（31）The week side of boss uniform intervals distribution.

A kind of 8. filter of hydraulic power unit according to claim 1, it is characterised in that：The end cap（2）On open up There are more along the end cap（2）The week side of boss uniform intervals distribution anti-slip tank（24）.