CN115875347B - Fluid filter equipment of electrohydraulic servo valve - Google Patents
Fluid filter equipment of electrohydraulic servo valve Download PDFInfo
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- CN115875347B CN115875347B CN202310128775.6A CN202310128775A CN115875347B CN 115875347 B CN115875347 B CN 115875347B CN 202310128775 A CN202310128775 A CN 202310128775A CN 115875347 B CN115875347 B CN 115875347B
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Abstract
The invention discloses an oil filtering device of an electrohydraulic servo valve, which relates to the technical field of oil filtering devices and comprises an oil tank, a high-pressure pipe, a valve type filter, an electrohydraulic servo valve body, a filtering mechanism and a mounting mechanism. The invention has the functions of effectively filtering oil, cleaning filtered impurities, rapidly installing the high-pressure pipe and ensuring good connection tightness of the high-pressure pipe.
Description
Technical Field
The invention belongs to the technical field of oil filtering devices, and particularly relates to an oil filtering device of an electrohydraulic servo valve.
Background
The electrohydraulic servo valve is one of key elements in electrohydraulic servo control, is a hydraulic control valve for correspondingly regulating flow and pressure after receiving an electric signal, has the advantages of quick response, high precision, long service life and the like, and is widely applied to the fields of chemical industry, metallurgy, aviation and the like.
The Chinese patent publication No. CN110529447A discloses an oil filtering device of an electrohydraulic servo valve, which comprises an oil tank and the electrohydraulic servo valve positioned at one side of the oil tank, wherein one side of the oil tank is fixedly connected with one end of a high-pressure pipe, the other end of the high-pressure pipe is fixedly provided with a valve filter, the valve filter is fixedly connected with the electrohydraulic servo valve, one side of the oil tank is fixedly provided with a recovery tank, one side inner wall of the recovery tank is provided with a communication hole, the communication hole is communicated with the oil tank, and one side inner wall of the recovery tank is fixedly provided with one end of a connecting pipe; according to the invention, through the reciprocating movement of the filter screen and the recovery frame, the filter screen and the recovery frame can be prevented from being blocked, the recovery frame is convenient to disassemble and assemble, and sundries can be intensively recovered and cleaned through the recovery frame.
However, there is also certain not enough in the fluid filter equipment of current electrohydraulic servo valve, at first, though adopt the filter screen to carry out impurity filtering to fluid in current electrohydraulic servo valve's fluid filter equipment, owing to its articulated seat's setting, lead to the whole leakproofness of oil tank poor, do not have good filter mechanism, lead to the filtering effect of fluid weak, secondly, current electrohydraulic servo valve's fluid filter equipment does not also have good installation mechanism, is inconvenient for people to carrying out leakproofness installation use between high-pressure pipe and the valve filter.
Disclosure of Invention
The invention aims to provide an oil filtering device of an electrohydraulic servo valve, which aims to solve the problems that the oil tank in the background art is poor in overall tightness and inconvenient to install between a high-pressure pipe and a valve type filter.
The invention provides the following technical scheme:
the utility model provides an fluid filter equipment of electrohydraulic servo valve, includes oil tank, high-pressure pipe, valve formula filter, electrohydraulic servo valve body, fixedly connected with high-pressure pipe in the oil tank, the outside of high-pressure pipe has slided and has cup jointed valve formula filter, is provided with electrohydraulic servo valve body on the valve formula filter, is provided with filtering mechanism on the oil tank, is provided with installation mechanism on high-pressure pipe and the valve formula filter jointly.
Preferably, the filtering mechanism comprises a fixed cylinder, the fixed cylinder is fixedly arranged on the oil tank, a rotating rod is arranged in the fixed cylinder through a bearing, an elastic belt is arranged on the rotating rod, the other end of the elastic belt is adhered to the fixed cylinder, a sealing disc is fixedly connected to the rotating rod and is in contact with the oil tank, an elastic plug is fixedly connected to the sealing disc and is in sliding connection with the oil tank, and a liquid inlet on the oil tank can be sealed through the arrangement of the elastic plug, the sealing disc and the like.
Preferably, fixedly connected with fixed plate in the oil tank, fixedly connected with filter screen in the fixed plate, fixedly mounted has the motor on the oil tank, the output shaft and the oil tank of motor rotate to be connected, the output shaft fixedly connected with threaded rod of motor, threaded rod and oil tank rotate to be connected, threaded rod's outside is connected with the movable plate through the threaded connection, fixedly connected with guide arm in the oil tank, guide arm and movable plate sliding connection, sliding connection has the square pole in the movable plate, bonding has elastic component one on the square pole, elastic component one's the other end bonds with the movable plate, fixedly connected with scraper blade on the square pole, scraper blade and fixed plate sliding connection through the setting of motor, threaded rod, guide arm isotructure, can promote the scraper blade to remove, and then clear up the impurity that adheres to on the filter screen.
Preferably, the oil tank is contacted with a sealing plate, a sealing block is fixedly connected to the sealing plate, the sealing block is in sliding connection with the oil tank, a collecting seat is fixedly connected to the oil tank, the collecting seat is in contact with the sealing plate, a traction plate is fixedly connected to the sealing plate, the traction plate is in sliding connection with the collecting seat, a positioning hole is formed in the collecting seat, an air cylinder is fixedly installed on the collecting seat, the telescopic end of the air cylinder is in sliding connection with the collecting seat, the telescopic end of the air cylinder is fixedly connected with a sliding rod in the traction plate, a pressing plate is in sliding connection with the sliding rod in the sliding sleeve, a first spring is arranged on the outer side of the sliding rod, a positioning block is fixedly connected to the pressing plate, and the positioning block is in sliding connection with the positioning hole and can be opened and closed through the arrangement of the air cylinder, the traction plate and other structures.
Preferably, two positioning holes are formed, the two positioning holes are uniformly distributed on the collecting seat, and the positioning holes are arranged so as to be convenient to be matched with the positioning blocks for clamping.
Preferably, one end of the first spring is welded with the pressing plate, the other end of the first spring is welded with the traction plate, and the traction plate can be connected for use through the arrangement of the first spring.
Preferably, the installation mechanism comprises an installation cylinder, the installation cylinder is fixedly installed on the valve type filter, the installation cylinder is slidably connected with an inserting rod, the inserting rod is slidably connected with the valve type filter, the inserting rod is slidably connected with the high-pressure pipe, a guide plate is fixedly connected in the installation cylinder and slidably connected with the inserting rod, an elastic piece II is adhered to the guide plate, the other end of the elastic piece II is adhered to the inserting rod, and the high-pressure pipe can be spliced and limited through the arrangement of the inserting rod, the elastic piece and the like.
Preferably, the valve type filter is internally and fixedly connected with sealing ring, the high-pressure pipe is contacted with four sealing sheets, the four sealing sheets are contacted with each other, the sealing sheets are contacted with the sealing ring, the sealing sheets are fixedly connected with connecting rods, the connecting rods are in sliding connection with the high-pressure pipe, guide balls are fixedly connected with the connecting rods, the guide balls are in sliding connection with the high-pressure pipe, the second springs are welded on the guide balls, the other ends of the second springs are welded with the high-pressure pipe, and the installation tightness of the high-pressure pipe can be ensured through the arrangement of the sealing sheets, the sealing ring and the like.
The invention relates to an oil filtering device of an electrohydraulic servo valve, which has the characteristics of effectively filtering oil, cleaning filtered impurities, rapidly installing a high-pressure pipe and ensuring good connection tightness of the high-pressure pipe, and has the following beneficial effects compared with the traditional oil filtering device of the electrohydraulic servo valve in specific use:
firstly, through setting up filtering mechanism, fixed cylinder, dwang, elastic belt, sealing disk, elasticity end cap, fixed plate, filter screen, motor, threaded rod, movable plate, guide arm, square pole, elastic component one, the scraper blade, the closing plate, the sealing block, collect seat, haulage plate isotructure, under the cooperation of structures such as sealing disk, elasticity end cap, elastic belt, can seal the oil inlet of oil tank, under the effect of filter screen, can filter oil, start motor drive threaded rod and rotate, can promote the scraper blade to slide along the filter screen surface, clear up the impurity of adhering to on the filter screen, under the effect of structures such as cylinder, the haulage plate, the locating hole, can open the closing plate, and then promote the impurity, the clearance of people of being convenient for is used.
Secondly, through setting up the structure such as installation mechanism, installation section of thick bamboo, inserted bar, baffle, elastic component two, sealing washer, connecting rod, ball guide, under the effect of structures such as inserted bar, elastic component, can peg graft spacingly to the high-pressure tube, the quick installation of people of being convenient for uses to under the cooperation of structures such as sealing washer, can carry out the leakproofness to the high-pressure tube, in order to guarantee the installation sealed effect of high-pressure tube.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of FIG. 1 of the present invention;
FIG. 3 is an enlarged view of FIG. 2A in accordance with the present invention;
FIG. 4 is an enlarged view of FIG. 2B in accordance with the present invention;
FIG. 5 is an enlarged view of FIG. 2 at C in accordance with the present invention;
FIG. 6 is an enlarged view of the mounting mechanism of FIG. 2 in accordance with the present invention;
FIG. 7 is an enlarged view of FIG. 6 at D in accordance with the present invention;
fig. 8 is a side view of the seal ring of fig. 7 in accordance with the present invention.
In the figure: 1. an oil tank; 2. a high pressure pipe; 3. a valve filter; 4. an electrohydraulic servo valve body; 5. a filtering mechanism; 6. a mounting mechanism; 51. a fixed cylinder; 52. a rotating lever; 53. an elastic belt; 54. a sealing plate; 55. an elastic plug; 56. a fixing plate; 57. a filter screen; 58. a motor; 59. a threaded rod; 591. a moving plate; 592. a guide rod; 593. square rods; 594. an elastic piece I; 595. a scraper; 596. a sealing plate; 597. a sealing block; 101. a collection seat; 598. a traction plate; 599. positioning holes; 5991. a cylinder; 5992. a slide bar; 5993. a pressing plate; 5994. a first spring; 5995. a positioning block; 61. a mounting cylinder; 62. a rod; 63. a guide plate; 64. an elastic piece II; 65. a seal ring; 66. a sealing sheet; 67. a connecting rod; 68. guiding a ball; 69. and a second spring.
Description of the embodiments
As shown in fig. 1-8, the following technical scheme is adopted in the specific embodiment:
examples
The utility model provides an fluid filter equipment of electrohydraulic servo valve, includes oil tank 1, high-pressure pipe 2, valve formula filter 3, electrohydraulic servo valve body 4, and 1 internal fixation of oil tank has high-pressure pipe 2, and valve formula filter 3 has been cup jointed in the outside slip of high-pressure pipe 2, is provided with electrohydraulic servo valve body 4 on the valve formula filter 3, is provided with filtering mechanism 5 on the oil tank 1, is provided with installation mechanism 6 jointly on high-pressure pipe 2 and the valve formula filter 3.
The filtering mechanism 5 comprises a fixed cylinder 51, the fixed cylinder 51 is fixedly arranged on the oil tank 1, a rotating rod 52 is arranged in the fixed cylinder 51 through a bearing, an elastic belt 53 is arranged on the rotating rod 52, the other end of the elastic belt 53 is adhered to the fixed cylinder 51, a sealing disc 54 is fixedly connected to the rotating rod 52, the sealing disc 54 is in contact with the oil tank 1, an elastic plug 55 is fixedly connected to the sealing disc 54, the elastic plug 55 is in sliding connection with the oil tank 1, and a liquid inlet on the oil tank 1 can be sealed through the arrangement of the elastic plug 55, the sealing disc 54 and the like.
Wherein, fixedly connected with fixed plate 56 in the oil tank 1, fixed connection has filter screen 57 in the fixed plate 56, fixed mounting has motor 58 on the oil tank 1, the output shaft and the oil tank 1 rotation of motor 58 are connected, the output shaft fixedly connected with threaded rod 59 of motor 58, threaded rod 59 and oil tank 1 rotate to be connected, the outside of threaded rod 59 has movable plate 591 through threaded connection, fixedly connected with guide arm 592 in the oil tank 1, guide arm 592 and movable plate 591 sliding connection, sliding connection has square pole 593 in the movable plate 591, bonding has elastic component one 594 on the square pole 593, the other end and the movable plate 591 bonding of elastic component one 594, fixedly connected with scraper blade 595 on the square pole 593, scraper blade 595 and fixed plate 56 sliding connection can promote scraper blade 595 to remove, and then clear up the impurity that adheres to on the filter screen 57 through the setting of structures such as motor 58, threaded rod 59, guide arm 592.
Wherein, the contact has closing plate 596 on the oil tank 1, fixedly connected with sealing block 597 on the closing plate 596, sealing block 597 and oil tank 1 sliding connection, fixedly connected with collection seat 101 on the oil tank 1, collect seat 101 and closing plate 596 contact, fixedly connected with pulling plate 598 on the closing plate 596, pulling plate 598 and collection seat 101 sliding connection, set up locating hole 599 in the collection seat 101, fixedly mounted has cylinder 5991 on the collection seat 101, the flexible end and the collection seat 101 sliding connection of cylinder 5991, the flexible end and the pulling plate 598 fixed connection of cylinder 5991, fixedly connected with slide bar 5992 in the pulling plate 598, the outside sliding sleeve of slide bar 5992 has clamp plate 5993, clamp plate 5993 and pulling plate 598 sliding connection, the outside of slide bar 5992 is provided with first spring 5994, fixedly connected with locating piece 5995 on the clamp plate 5993, locating piece 5995 and locating hole 599 sliding connection, through the setting up of cylinder 5991, pulling plate 598 isotructure, can open and close the closing plate 596 and use.
Wherein, the locating hole 599 is provided with two, and two locating holes 599 evenly distributed on collecting seat 101, through the setting of locating hole 599, the cooperation locating piece 5995 of being convenient for carries out the joint and uses.
One end of the first spring 5994 is welded with the pressing plate 5993, the other end of the first spring 5994 is welded with the traction plate 598, and the traction plate 598 can be connected for use through the arrangement of the first spring 5994.
The installation mechanism 6 comprises an installation cylinder 61, the installation cylinder 61 is fixedly installed on the valve type filter 3, an inserting rod 62 is slidably connected in the installation cylinder 61, the inserting rod 62 is slidably connected with the valve type filter 3, the inserting rod 62 is slidably connected with the high-pressure pipe 2, a guide plate 63 is fixedly connected in the installation cylinder 61, the guide plate 63 is slidably connected with the inserting rod 62, an elastic piece II 64 is adhered to the guide plate 63, the other end of the elastic piece II 64 is adhered to the inserting rod 62, and the high-pressure pipe 2 can be inserted and limited through the arrangement of the structures of the inserting rod 62, the elastic piece II 64 and the like.
The valve type filter 3 is fixedly connected with a sealing ring 65, four sealing sheets 66 are contacted with the high-pressure pipe 2, the four sealing sheets 66 are contacted with each other, the sealing sheets 66 are contacted with the sealing ring 65, a connecting rod 67 is fixedly connected with the sealing sheets 66, the connecting rod 67 is in sliding connection with the high-pressure pipe 2, a guide ball 68 is fixedly connected with the connecting rod 67, the guide ball 68 is in sliding connection with the high-pressure pipe 2, a second spring 69 is welded on the guide ball 68, the other end of the second spring 69 is welded with the high-pressure pipe 2, and the installation tightness of the high-pressure pipe 2 can be ensured through the arrangement of the sealing sheets 66, the sealing ring 65 and other structures.
The use state of the invention is as follows: when the valve type filter is used, the inserted link 62 can be pulled to move in a direction away from the mounting cylinder 61, so that the inserted link 62 slides along the surface of the guide plate 63, the elastic piece II 64 is stressed and deformed, then the valve type filter 3 is pushed to be sleeved on the high-pressure pipe 2, the inserted link 62 is released, the elastic piece II 64 is restored and deformed, the inserted link 62 is pushed to be inserted into the high-pressure pipe 2, the high-pressure pipe 2 and the valve type filter 3 are rapidly mounted and used, in the process, the sealing ring 65 presses the sealing piece 66, the sealing piece 66 is stressed and slides along the inner wall of the sealing ring 65, the connecting rod 67 is pushed to move, the guide ball 68 is pushed to slide along the inner wall of the high-pressure pipe 2, the second spring 69 is stressed and deformed, finally the sealing piece 66 is contacted with the surface of the high-pressure pipe 2, and the four sealing pieces 66 are contacted with each other, so that the mounting tightness between the high-pressure pipe 2 and the valve type filter 3 is ensured under the action of the sealing ring 65 and the sealing piece 66;
then, the sealing disc 54 is pushed to rotate so as to drive the rotating rod 52 to rotate, the elastic belt 53 is stressed and deformed, in the process, the elastic plug 55 is driven to move by the stress of the sealing disc 54, the elastic plug 55 is deformed under the extrusion action of an oil inlet on the oil tank 1, finally, the oil can be poured into the oil tank 1 through the oil inlet, impurities in the oil can be filtered out under the action of the filter screen 57, when the impurities attached to the filter screen 57 are more, the air cylinder 5991 is started to drive the traction plate 598 to move so as to drive the sealing plate 596 to move, the sealing block 597 is driven to separate from the oil tank 1, the slag outlet on the oil tank 1 is opened, in the process, the positioning hole 599 is stressed and extruded with the positioning block 5995, the positioning block 5995 is stressed and drives the pressing plate 5993 to slide along the surface of the sliding rod 5992, the first spring 5994 is stressed and deformed, finally, the positioning block 5995 is separated from the positioning hole 599, the positioning block 5995 slides along the inner wall of the collecting seat 101 under the action of the force, and when the positioning block 5995 slides into the next positioning hole 599 on the collecting seat 101, the positioning block 599 is pushed by the first spring 5994 to restore the positioning block 596, and the positioning block 596 is accurately inserted into the positioning block 596 to control the positioning plate 596;
the starting motor 58 drives the threaded rod 59 to rotate, under the relation of threaded connection, so as to push the movable plate 591 to move, and the movable plate 591 is stressed to slide along the surface of the guide rod 592, and then the movement stability of the movable plate 591 is guaranteed, the movable plate 591 is stressed to drive the square rod 593 to move so as to drive the scraper 595 to slide along the surface of the fixed plate 56, and then the scraper 595 slides along the surface of the filter screen 57, impurities attached to the filter screen 57 are cleaned, and when the square rod 593 is stressed to move, the elastic piece 594 can be pushed to deform, the scraper 595 can be pushed to be always in contact with the filter screen 57 under the deformation action of the elastic piece 594, the problem that the filter screen 57 is difficult to clean after the scraper 595 is worn is avoided, and under the sliding action of the scraper 595, the impurities can be pushed out of the oil tank 1 so that the impurities fall into the collecting seat 101, and the cleaning of subsequent operators is convenient.
Claims (2)
1. The utility model provides an fluid filter equipment of electrohydraulic servo valve, includes oil tank (1), high-pressure pipe (2), valve formula filter (3), electrohydraulic servo valve body (4), its characterized in that: the high-pressure pipe (2) is fixedly connected in the oil tank (1), the valve type filter (3) is sleeved on the outer side of the high-pressure pipe (2) in a sliding manner, the electrohydraulic servo valve body (4) is arranged on the valve type filter (3), the filtering mechanism (5) is arranged on the oil tank (1), and the mounting mechanism (6) is jointly arranged on the high-pressure pipe (2) and the valve type filter (3);
the filtering mechanism (5) comprises a fixed cylinder (51), a rotating rod (52), an elastic belt (53), a sealing disc (54), an elastic plug (55), a fixed plate (56), a filter screen (57), a motor (58), a threaded rod (59), a moving plate (591), a guide rod (592), a square rod (593), an elastic piece I (594), a scraping plate (595), a sealing plate (596), a sealing block (597), a collecting seat (101), a traction plate (598), a positioning hole (599), a cylinder (5991), a sliding rod (5992), a pressing plate (5993), a first spring (5994) and a positioning block (5995), wherein the fixed cylinder (51) is fixedly connected to the oil tank (1), the rotating rod (52) is installed in the fixed cylinder (51) through a bearing, the elastic belt (53) is arranged on the rotating rod (52), the other end of the elastic belt (53) is adhered to the fixed cylinder (51), the sealing disc (54) is fixedly connected to the rotating rod (52), the sealing disc (54) is contacted with the oil tank (1), the elastic plug (55) is fixedly connected to the elastic plug (55) in a sliding mode;
the oil tank is characterized in that a sealing plate (596) is contacted with the oil tank (1), a sealing block (597) is fixedly connected to the sealing plate (596), the sealing block (597) is connected with the oil tank (1) in a sliding mode, a collecting seat (101) is fixedly connected to the oil tank (1), the collecting seat (101) is contacted with the sealing plate (596), a traction plate (598) is fixedly connected to the sealing plate (596), the traction plate (598) is connected with the collecting seat (101) in a sliding mode, a positioning hole (599) is formed in the collecting seat (101), an air cylinder (5991) is fixedly installed on the collecting seat (101), the telescopic end of the air cylinder (5991) is connected with the collecting seat (101) in a sliding mode, a sliding rod (5992) is fixedly connected to the telescopic end of the air cylinder (5991), a pressing plate (5993) is sleeved on the outer side of the sliding rod (5992) in a sliding mode, the pressing plate (5993) is connected with the traction plate (598) in a sliding mode, and a first spring (5994) is arranged on the outer side of the sliding plate (5992), and the positioning block (5995) is fixedly connected with the positioning block (5995) in a sliding mode.
Two positioning holes (599) are formed, and the two positioning holes (599) are uniformly distributed on the collecting seat (101);
one end of the first spring (5994) is welded with the pressing plate (5993), and the other end of the first spring (5994) is welded with the traction plate (598);
the mounting mechanism (6) comprises a mounting cylinder (61), a plug rod (62), a guide plate (63), a second elastic piece (64), a sealing ring (65), a sealing sheet (66), a connecting rod (67), a guide ball (68) and a second spring (69), wherein the mounting cylinder (61) is fixedly connected to the valve type filter (3), the plug rod (62) is slidably connected to the mounting cylinder (61), the plug rod (62) is slidably connected with the valve type filter (3), the guide plate (63) is fixedly connected to the inside of the mounting cylinder (61) and is slidably connected with the plug rod (62), the second elastic piece (64) is adhered to the guide plate (63), and the other end of the second elastic piece (64) is adhered to the plug rod (62);
valve formula filter (3) internal fixation has sealing washer (65), the contact has four sealing sheets (66) on high-pressure pipe (2), four sealing sheets (66) contact each other, sealing sheet (66) contact with sealing washer (65), fixedly connected with connecting rod (67) on sealing sheet (66), connecting rod (67) and high-pressure pipe (2) sliding connection, fixedly connected with ball guide (68) on connecting rod (67), ball guide (68) and high-pressure pipe (2) sliding connection, the welding has second spring (69) on ball guide (68), the other end and the high-pressure pipe (2) welding of second spring (69).
2. The oil filtering device of an electrohydraulic servo valve according to claim 1, wherein: fixedly connected with fixed plate (56) in oil tank (1), fixedly connected with filter screen (57) in fixed plate (56), fixedly mounted has motor (58) on oil tank (1), the output shaft and the oil tank (1) of motor (58) rotate to be connected, the output shaft fixedly connected with threaded rod (59) of motor (58), threaded rod (59) rotate with oil tank (1) to be connected, the outside of threaded rod (59) is through threaded connection movable plate (591), fixedly connected with guide arm (592) in oil tank (1), guide arm (592) and movable plate (591) sliding connection, movable plate (591) sliding connection has square rod (593), bonding has elastic component one (594) on square rod (593), the other end and the movable plate (591) of elastic component one (594) bond, fixedly connected with scraper blade (595) on square rod (593) and fixed plate (56) sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310128775.6A CN115875347B (en) | 2023-02-17 | 2023-02-17 | Fluid filter equipment of electrohydraulic servo valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310128775.6A CN115875347B (en) | 2023-02-17 | 2023-02-17 | Fluid filter equipment of electrohydraulic servo valve |
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| CN115875347A CN115875347A (en) | 2023-03-31 |
| CN115875347B true CN115875347B (en) | 2023-05-12 |
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| CN202310128775.6A Active CN115875347B (en) | 2023-02-17 | 2023-02-17 | Fluid filter equipment of electrohydraulic servo valve |
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| CN117128216B (en) * | 2023-10-27 | 2023-12-19 | 广州唯友斯工程机械配件有限公司 | Waste oil recovery device of port portal crane rotating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377938A (en) * | 2016-11-26 | 2017-02-08 | 南京途酷信息科技有限公司 | Waste liquid filtering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB640727A (en) * | 1947-08-21 | 1950-07-26 | Brockhouse Engineering Southpo | Improvements in or relating to hydraulic transmission apparatus |
| CN104454692A (en) * | 2014-11-27 | 2015-03-25 | 贵州精立航太科技有限公司 | Hydraulic system for thread roller |
| CN106075972A (en) * | 2016-07-29 | 2016-11-09 | 天津市欣跃涂料有限公司 | A kind of defecator |
| DE102017109924B4 (en) * | 2017-05-09 | 2023-04-06 | Argo-Hytos Group Ag | Filter system and method for filtering liquid |
| CN108704371A (en) * | 2018-05-30 | 2018-10-26 | 章帆 | A kind of water conservancy irrigation filter |
| CN108953303A (en) * | 2018-09-04 | 2018-12-07 | 新乡思诚净化设备有限公司 | The coarse-fine integrated filter of hydraulic station |
| CN110529447B (en) * | 2019-09-06 | 2021-05-11 | 烟台中宇航空液压有限公司 | Oil filter of electrohydraulic servo valve |
| CN114225498A (en) * | 2021-12-22 | 2022-03-25 | 宿州市耶伊勒精密机械有限公司 | Impurity filtering device for oil tank of numerical control machine tool |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377938A (en) * | 2016-11-26 | 2017-02-08 | 南京途酷信息科技有限公司 | Waste liquid filtering device |
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