CN217976865U

CN217976865U - Filter for hydraulic system

Info

Publication number: CN217976865U
Application number: CN202222147452.5U
Authority: CN
Inventors: 谢峰; 乔文海; 肖湘宁; 李阿龙
Original assignee: Haifutaike Hydraulic Technology Shanghai Co ltd
Current assignee: Haifutaike Hydraulic Technology Shanghai Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-12-06
Anticipated expiration: 2032-08-15

Abstract

The utility model relates to a technical field of filter discloses a filter for hydraulic system, and it is including straining the shell, has seted up the cavity in straining the shell, installs the filter core in the cavity, and the filter core divide into feed liquor chamber and play liquid chamber with the cavity, strain and set up on the shell with go out the liquid hole that liquid chamber communicates, strain and still seted up a plurality of feed liquor holes on the shell, a plurality of feed liquor holes all are seted up with feed liquor chamber intercommunication, strain and to dismantle on the shell and be connected with the upper cover. This application has the effect that improves many pipelines and the convenience of feed liquor jogged joint.

Description

Filter for hydraulic system

Technical Field

The application relates to the technical field of filters, in particular to a filter for a hydraulic system.

Background

The filter is an indispensable device for the conveying pipeline, and is usually installed on pipeline equipment to filter the liquid in the pipeline.

In the related art, a filter comprises a filter shell, a filter cavity is formed in the filter shell, a filter element is fixedly installed in the filter cavity, an end cover shell is fixedly arranged on the filter shell, a liquid inlet hole and a liquid outlet hole are formed in the end cover shell, liquid flows into the filter cavity through the liquid inlet hole, and is discharged through the liquid outlet hole after being filtered by the filter element, so that the filtering work of the filter is completed.

In view of the above-mentioned related art, the inventor believes that only a single pipeline can be connected in the related art, and when a plurality of liquid inlet pipelines need to be connected, the plurality of pipelines need to be connected together to be uniformly connected with a single liquid inlet hole, so that the convenience of connecting the pipelines and the liquid inlet holes is seriously affected, and an improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to improve the convenience of many pipelines and feed liquor jogged joint, this application provides a filter for hydraulic system.

The application provides a filter for hydraulic system adopts following technical scheme:

the utility model provides a filter for hydraulic system, includes and strains the shell, strain and seted up the cavity in the shell, install the filter core in the cavity, the filter core will the cavity divide into feed liquor chamber and play liquid chamber, strain and set up on the shell with go out the liquid hole that liquid chamber communicates, strain and still seted up a plurality of feed liquor holes on the shell, it is a plurality of the feed liquor hole all with feed liquor chamber intercommunication is seted up, strain and to dismantle on the shell and be connected with the upper cover.

By adopting the technical scheme, when the filter works, the plurality of pipelines are communicated with the plurality of liquid inlet holes, liquid is input into the liquid inlet cavity, is filtered by the filter element, flows into the liquid outlet cavity and is finally discharged from the liquid outlet holes; by adopting the design, the plurality of pipelines are connected on the same filter, so that the liquid in the plurality of pipelines can be filtered, and the convenience of connecting the plurality of pipelines and the liquid inlet hole is improved.

Preferably, the downthehole control valve body that can dismantle of feed liquor is connected with, it slides the chamber to have seted up in the control valve body, it is provided with the switch board to slide the intracavity, set up the intercommunicating pore that is used for communicateing feed liquor chamber and the chamber that slides on the control valve body, be provided with in the control valve body and be used for the drive the switch board is closed the elastic component in chamber slides.

Through adopting above-mentioned technical scheme, when pipeline and feed liquor hole intercommunication, under the pressure of liquid, make the switch board to keeping away from the pipeline and remove to make liquid flow in the feed liquor chamber, when the feed liquor hole is not connected with the pipeline like this, be in the state of closing, make the filter can be applicable to the place of multiple different quantity pipelines better, improve the commonality of filter.

Preferably, both sides are provided with first mounting panel and second mounting panel respectively about the filter core, first spliced eye has been seted up on the first mounting panel, second spliced eye has been seted up on the second mounting panel, the upper cover is close to one side integrated into one piece of straining the shell have with first spliced eye grafting cooperation grafting piece, the cavity bottom be provided with second spliced eye grafting complex grafting ring, the grafting ring with go out the coaxial setting in liquid hole.

Through adopting above-mentioned technical scheme, use the grafting piece and first spliced eye cooperation, the cooperation of grafting ring and second spliced eye can be spacing to the filter core, improves the fixed stability of filter core.

Preferably, the plug ring is sleeved with a compression spring, one end of the compression spring is abutted to the bottom of the cavity, and the other end of the compression spring is abutted to the second mounting plate.

Through adopting above-mentioned technical scheme, use compression spring to make the filter core butt on the piece that inserts, avoid the filter core along its axial displacement, improve the stability of using the filter core.

Preferably, the upper cover is connected with a plug bolt in a threaded fit manner, the plug bolt is inserted into the liquid inlet cavity, and the plug bolt is detachably connected with a magnetic filter element.

Through adopting above-mentioned technical scheme, use the magnetic filter core can adsorb the magnetic particle thing in the liquid, play clear effect, reduce the filter pressure of lower part filter core simultaneously.

Preferably, one end of the inserting bolt close to the filter element is integrally formed with a threaded rod, the magnetic filter element is inserted into the threaded rod, and one end of the threaded rod far away from the inserting bolt is connected with a locking nut in a threaded fit mode.

Through adopting above-mentioned technical scheme, can make magnetic filter core realize dismantling, the installation and the dismantlement of the magnetic filter core of being convenient for more improve the convenience that magnetic filter core used.

Preferably, first mounting panel exposes in the area in the feed liquor intracavity is greater than the second mounting panel exposes in the area in the feed liquor intracavity, first mounting panel runs through the overflow hole of offering and being used for intercommunication feed liquor chamber and play sap cavity, the plug block butt is used for sealing on first mounting panel the overflow hole.

Through adopting the above technical scheme, when the filter core takes place to block up, the fluid pressure in the feed liquor intracavity acts on the surface of filter core, the pressure that liquid acted on the filter core is the same, filter core week side atress is even, because the area of force of first mounting panel is greater than the area of force of second mounting panel, can make the filter core produce the pressure of keeping away from the grafting piece, when pressure is greater than compression spring's elasticity, first mounting panel removes along keeping away from the grafting piece simultaneously with the filter core, thereby realize the intercommunication in feed liquor chamber and play liquid chamber through the overflow hole, reduce because the filter core blocks up and causes the too big condition of filter internal pressure to take place, the security that improves the filter and use.

Preferably, one side that the grafting piece is close to first mounting panel is provided with the sealing washer, the sealing washer is used for sealing the grafting piece with first mounting panel butt department.

Through adopting above-mentioned technical scheme, use the sealing washer can avoid when the filter core normally works, liquid is leaked by the emergence of plug block and first mounting panel butt, improves the stability of using the filter.

Preferably, one side of the insertion block, which is far away from the upper cover, is axially provided with a liquid discharge groove, the outer wall of the insertion block is provided with a liquid discharge hole communicated with the bottom of the liquid discharge groove, the bottom of the liquid discharge groove is abutted to an overflow plate, a check ring is clamped on the inner wall of the liquid discharge groove, an abutting spring is further arranged in the liquid discharge groove, two sides of the abutting spring are respectively abutted to two sides, which are close to each other, of the check ring and the overflow plate, and the outer wall of the liquid discharge groove is further provided with a flow groove for providing a liquid flow channel.

Through adopting above-mentioned technical scheme, when the filter core took place to block up, the pressure of liquid can act on the overflow plate, and when being used for the liquid pressure on the overflow plate to be greater than the elasticity of butt spring, the overflow plate slided along the direction of keeping away from the upper cover to make liquid flow out the liquid intracavity through the groove inflow that flows, avoid liquid to take place to block up in filter department, reduce because the filter core blocks up and causes the too big condition of filter internal pressure to take place, improve the security that the filter used.

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

the plurality of pipelines are communicated with the plurality of liquid inlet holes, are uniformly filtered by the filter element and are discharged from the liquid outlet holes, so that the liquid in the plurality of pipelines can be filtered, and the convenience of connecting the plurality of pipelines with the liquid inlet holes is improved;

the magnetic filter element is arranged in the liquid inlet cavity, so that magnetic particles in liquid can be adsorbed, a cleaning effect is achieved, and the filtering pressure of the lower filter element is reduced;

make the area that first mounting panel exposes in the feed liquor intracavity be greater than the area that the second mounting panel exposes in the feed liquor intracavity, when the filter core took place to block up, the fluid pressure in the feed liquor intracavity acts on the surface of filter core, because the pressure that liquid acted on the filter core is the same, filter core week side atress is even, the area of atress of first mounting panel is greater than the area of atress of second mounting panel, can make the filter core produce the pressure of keeping away from the grafting piece, when pressure is greater than compression spring's elasticity, first installation removes along keeping away from the grafting piece with the filter core simultaneously, thereby realize the direct intercommunication in feed liquor chamber and play liquid chamber through the overflow hole, reduce because the filter core blocks up the too big condition emergence of filter internal pressure that causes, the security of filter use improves.

Drawings

Fig. 1 is a schematic structural diagram of a filter for a hydraulic system according to embodiment 1 of the present application.

Fig. 2 is a sectional view of a filter for a hydraulic system according to embodiment 1 of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a partial sectional view of a filter for a hydraulic system according to embodiment 2 of the present application.

Fig. 5 is a partial sectional view of a filter for a hydraulic system according to embodiment 3 of the present application.

Reference numerals: 1. inserting bolts; 2. an upper cover; 3. a liquid inlet hole; 4. a filter shell; 5. reinforcing ribs; 6. a liquid outlet pipe; 7. a lock nut; 8. a first mounting plate; 9. a filter element; 10. a second mounting plate; 11. a compression spring; 12. a plug-in ring; 13. a liquid outlet hole; 14. a magnetic filter element; 15. an insertion block; 16. a cavity; 161. a liquid inlet cavity; 162. a liquid outlet cavity; 17. a communicating hole; 18. a sliding cavity; 19. a slide bar; 20. a switch plate; 21. a control valve body; 22. a threaded rod; 23. an overflow aperture; 24. a seal ring; 25. a drain hole; 26. a flow channel; 27. a retainer ring; 28. a liquid discharge tank; 29. an abutment spring; 30. an overflow plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a filter for a hydraulic system.

Example 1:

referring to fig. 1 and 2, a filter for hydraulic system, including straining shell 4, strain shell 4 and be cylindricly, strain the interior coaxial cavity 16 of having seted up of shell 4, cavity 16 is cylinder cavity 16, and it runs through one side and sets up, cavity 16 internal fixation has filter core 9, filter core 9 divide into feed liquor chamber 161 and play liquid chamber 162 with cavity 16, strain shell 4 bottom and set up the play liquid hole 13 with play liquid chamber 162 intercommunication, strain shell 4 bottom still be fixed with go out the drain pipe 6 of the coaxial setting of liquid chamber 162, be connected with a plurality of strengthening ribs 5 between drain pipe 6 and the strain shell 4. The side wall of the filter shell 4 is provided with two liquid inlet holes 3 communicated with the liquid inlet cavity 161, the two liquid inlet holes 3 are cylindrical holes, and the axes of the two liquid inlet holes 3 are in the same plane; the side of the filter shell 4 far away from the liquid outlet pipe 6 is connected with an upper cover 2 through a bolt, and the cavity 16 is closed through the upper cover 2.

By adopting the method, the two pipelines can be simultaneously connected with the two liquid inlet holes 3, so that the liquid in the plurality of pipelines can be filtered, and the convenience of connecting the plurality of pipelines with the liquid inlet holes 3 is improved.

Referring to fig. 2 and 3, the control valve body 21 is connected with in the screw-thread fit in the liquid inlet hole 3, the control valve body 21 is in a ring shape, a sliding cavity 18 communicated with the liquid inlet hole 3 is formed in the control valve body 21, a switch board 20 is connected in the sliding cavity 18 in a sliding manner, the switch board 20 is a cylindrical board and coaxially arranged with the control valve body 21, a sliding rod 19 is integrally formed at the bottom of the sliding cavity 18, the sliding rod 19 is cylindrical and coaxially arranged with the control valve body 21, the switch board 20 is arranged in the sliding rod 19 in a sliding manner, an elastic part for driving the switch board 20 to abut against the side wall of the sliding cavity 18 is arranged in the control valve body 21, the elastic part is a compression spring, the elastic part is sleeved on the sliding rod 19, and two ends of the elastic part abut against the bottom of the sliding groove and the switch board 20 respectively. The control valve body 21 is provided with a plurality of communication holes 17 for communicating the liquid inlet chamber 161 with the slide chamber 18.

When the pipeline is inserted into the insertion hole, the switch board 20 slides under the action of the pipeline, so that the sliding groove is communicated with the liquid inlet cavity 161, and liquid flows into the liquid inlet cavity 161. When only one pipeline is provided, the filter can still be used, the universality of the filter is greatly improved, and the convenience of using the filter is improved.

Refer to fig. 1 and fig. 2, both sides are pegged graft respectively about filter core 9 and are fixed with first mounting panel 8 and second mounting panel 10, first mounting panel 8 all is the ring form with second mounting panel 10, first mounting panel 8 runs through along the axial and has seted up first spliced eye, second mounting panel 10 runs through along the axial and has seted up the second spliced eye, one side integrated into one piece that upper cover 2 is close to filter shell 4 has and pegs graft complex grafting piece 15 with first spliced eye, grafting piece 15 cross-section is the T type, 16 bottoms of cavity are fixed with pegs graft complex grafting ring 12 with the second spliced eye, grafting ring 12 and the coaxial setting of play liquid hole 13, and it is unanimous with grafting ring 12 internal diameter to go out liquid hole 13 internal diameter, the cover is equipped with compression spring 11 on the grafting ring 12, compression spring 11 one end sets up with 16 bottoms butt in cavity, its other end butt is on second mounting panel 10.

By adopting the design, the first mounting plate 8 can be abutted against the insertion block 15 through the compression spring 11 and is matched with the second insertion hole through the first insertion ring 12, so that the filter element 9 is fixed, the filter element 9 can be more firmly fixed in the filter shell 4 by adopting the design, and the stability of using the filter element 9 is improved.

Referring to fig. 1 and 2, the upper cover 2 is connected with the plug bolt 1 in a thread fit manner, the plug bolt 1 is inserted into the liquid inlet cavity 161, the plug bolt 1 is close to the one end integrally formed threaded rod 22 of the filter element 9, the threaded rod 22 is connected with the plurality of magnetic filter elements 14 in a plug manner, the magnetic filter elements 14 are made of magnets, the magnetic filter elements 14 are circular, and one end of the threaded rod 22, far away from the plug bolt 1, is connected with the locking nut 7 in a thread fit manner.

By adopting the design, the magnetic filter element 14 can adsorb magnetic particles in liquid, so as to play a role in cleaning, reduce the filtering pressure of the lower filter element 9 and improve the filtering effect of the liquid.

The implementation principle of the embodiment 1 is as follows: when the liquid filter works, the two pipelines are communicated with the liquid inlet hole 3, liquid enters the liquid inlet cavity 161, firstly, the magnetic filter element 14 adsorbs magnetic particles, and the filter element 9 filters the liquid, so that the liquid flows into the liquid outlet cavity 162 and is discharged from the liquid outlet hole 13; by adopting the design, the filter can be simultaneously connected with two pipelines, so that the two pipelines can be simultaneously filtered, and the convenience of connecting a plurality of pipelines with the liquid inlet hole 3 is improved.

Example 2:

referring to fig. 4, a filter for a hydraulic system, the difference with embodiment 1 lies in that, the area that first mounting panel 8 exposes in feed liquor chamber 161 is greater than the area that second mounting panel 10 exposes in feed liquor chamber 161, overflow hole 23 has been seted up along its axis direction to first mounting panel 8, overflow hole 23 is used for intercommunication feed liquor chamber 161 and play liquid chamber 162, plug-in ring 12 butt joint is used for sealing overflow hole 23 on first mounting panel 8, one side that plug-in block 15 is close to first mounting panel 8 is fixed with sealing washer 24, sealing washer 24 adopts the rubber materials preparation, sealing washer 24 is used for sealed plug-in block 15 and first mounting panel 8 butt joint department, thereby reach the mesh of sealing overflow hole 23.

The implementation principle of the embodiment 2 is as follows: different from embodiment 1 in that, when the filter element 9 is blocked, the surface of the filter element 9 has larger liquid pressure, the liquid pressure on the surface of the filter element 9 is uniformly distributed, according to the mechanical analysis, the force bearing area of the first mounting plate 8 is larger than the force bearing area of the second mounting plate 10, so the pressure of the filter element 9 in the direction far away from the upper cover 2 is larger, when the pressure is larger than the elastic force of the compression spring 11, the filter element 9 can move in the direction far away from the upper cover 2, thereby the overflow hole 23 is opened, the liquid flows, the situation that the internal pressure of the filter is too large due to the blockage of the filter element 9 is reduced, and the use safety of the filter is improved.

Example 3:

referring to fig. 5, a filter for a hydraulic system is different from embodiment 1 in that a liquid discharge groove 28 is coaxially formed in one side, away from an upper cover 2, of an insertion block 15, a liquid discharge hole 25 communicated with the bottom of the liquid discharge groove 28 is radially formed in the outer wall of the insertion block 15 in a penetrating manner, an overflow plate 30 is abutted to the bottom of the liquid discharge groove 28, the overflow plate 30 is a cylindrical plate, a retainer ring 27 is clamped to the inner wall of the liquid discharge groove 28, the retainer ring 27 is a hole-use elastic retainer ring, an abutting spring 29 is further installed in the liquid discharge groove 28, two sides of the abutting spring 29 are respectively abutted to two sides, close to each other, of the retainer ring 27 and the overflow plate 30, and a flow channel groove for providing a liquid flow channel is further formed in the outer wall of the liquid discharge groove 28.

The implementation principle of the embodiment 3 is as follows: the difference from the embodiment 1 lies in that when the filter element 9 is blocked, the liquid acts on the overflow plate 30 through the liquid discharge hole 25, when the pressure of the liquid is larger than the elastic force of the abutting spring 29, the overflow plate 30 slides away from the upper cover 2, so that the liquid flows into the liquid outlet cavity 162 through the flow groove 26 and is finally discharged through the liquid outlet hole 13.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, 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

1. A filter for a hydraulic system, comprising: including straining shell (4), seted up cavity (16) in straining shell (4), install filter core (9) in cavity (16), filter core (9) will cavity (16) divide into feed liquor chamber (161) and play liquid chamber (162), strain and set up on shell (4) and go out liquid hole (13) with play liquid chamber (162) intercommunication, strain and still seted up a plurality of feed liquor holes (3) on shell (4), it is a plurality of feed liquor hole (3) all with feed liquor chamber (161) intercommunication is seted up, it is connected with upper cover (2) to strain to dismantle on shell (4).

2. A filter for a hydraulic system according to claim 1, wherein: can dismantle in feed liquor hole (3) and be connected with control valve body (21), it slides chamber (18) to have seted up in control valve body (21), it is provided with switch board (20) to slide in chamber (18) slides, offer on control valve body (21) and be used for intercommunication feed liquor chamber (161) and the intercommunicating pore (17) in chamber (18) that slides, be provided with in control valve body (21) and be used for the drive switch board (20) are closed the elastic component in chamber (18) slides.

3. A filter for a hydraulic system according to claim 1, wherein: the filter element is characterized in that a first mounting plate (8) and a second mounting plate (10) are respectively arranged on the upper side and the lower side of the filter element (9), a first inserting hole is formed in the first mounting plate (8), a second inserting hole is formed in the second mounting plate (10), an upper cover (2) is close to one side of the filter shell (4), and is integrally formed with an inserting block (15) which is inserted and matched with the first inserting hole in an inserting mode, an inserting ring (12) which is inserted and matched with the second inserting hole in an inserting mode is arranged at the bottom of the cavity (16), and the inserting ring (12) and the liquid outlet hole (13) are coaxially arranged.

4. A filter for a hydraulic system according to claim 3, wherein: the plug-in ring (12) is sleeved with a compression spring (11), one end of the compression spring (11) is abutted to the bottom of the cavity (16), and the other end of the compression spring is abutted to the second mounting plate (10).

5. A filter for a hydraulic system according to claim 1, wherein: the upper cover (2) is connected with a plug bolt (1) in a threaded fit manner, the plug bolt (1) is inserted into the liquid inlet cavity (161), and the plug bolt (1) is detachably connected with a magnetic filter element (14).

6. A filter for a hydraulic system according to claim 5, wherein: one end of the inserting bolt (1) close to the filter element (9) is integrally formed with a threaded rod (22), the magnetic filter element (14) is inserted into the threaded rod (22), and one end of the threaded rod (22) far away from the inserting bolt (1) is connected with a locking nut (7) in a threaded fit mode.

7. A filter for a hydraulic system according to claim 4, wherein: first mounting panel (8) expose in area in feed liquor chamber (161) is greater than second mounting panel (10) expose in area in feed liquor chamber (161), first mounting panel (8) run through offer be used for intercommunication feed liquor chamber (161) with go out overflow hole (23) of liquid chamber (162), plug-in block (15) butt is used for sealing on first mounting panel (8) overflow hole (23).

8. A filter for a hydraulic system according to claim 7, wherein: one side that grafting piece (15) are close to first mounting panel (8) is provided with sealing washer (24), sealing washer (24) are used for sealing grafting piece (15) with first mounting panel (8) butt department.

9. A filter for a hydraulic system according to claim 4, wherein: the liquid discharging device is characterized in that a liquid discharging groove (28) is axially formed in one side, away from the upper cover (2), of the inserting block (15), a liquid discharging hole (25) communicated with the bottom of the liquid discharging groove (28) is formed in the outer wall of the inserting block (15), an overflow plate (30) is arranged at the bottom of the liquid discharging groove (28) in an abutting mode, a retaining ring (27) is clamped on the inner wall of the liquid discharging groove (28), an abutting spring (29) is further arranged in the liquid discharging groove (28), two sides of the abutting spring (29) are respectively abutted to two sides, close to each other, of the retaining ring (27) and the overflow plate (30), and a flowing groove (26) used for providing a liquid flowing channel is further formed in the outer wall of the liquid discharging groove (28).