CN113041705A - Filtering component of electric hydrostatic actuator system - Google Patents
Filtering component of electric hydrostatic actuator system Download PDFInfo
- Publication number
- CN113041705A CN113041705A CN202110267696.4A CN202110267696A CN113041705A CN 113041705 A CN113041705 A CN 113041705A CN 202110267696 A CN202110267696 A CN 202110267696A CN 113041705 A CN113041705 A CN 113041705A
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- China
- Prior art keywords
- box body
- bevel gear
- filter screen
- actuator system
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001914 filtration Methods 0.000 title claims abstract description 14
- 230000002706 hydrostatic effect Effects 0.000 title abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 244000309464 bull Species 0.000 claims 4
- 239000011148 porous material Substances 0.000 claims 2
- 239000003921 oil Substances 0.000 description 28
- 239000010720 hydraulic oil Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a filter assembly of an electric hydrostatic actuator system, which comprises a box body, wherein a fine filter screen movably connected with the inner wall of the box body is arranged in the box body, a motor and a rotating shaft are arranged on one side of the box body, the rotating shaft extends into the box body and is provided with a cam, the cam is movably connected with the bottom of the fine filter screen, a movable cavity is arranged on the inner wall of the box body, a first bevel gear is sleeved on the rotating shaft, a second bevel gear is meshed with one side of the first bevel gear, a rotating rod connected with a bearing of the inner wall of the movable cavity is arranged at one end of the second bevel gear, a cooling mechanism is arranged on one side of the rotating rod, a fourth bevel gear is arranged on the rotating rod, a third bevel gear is meshed with one side of the fourth bevel gear, a cooling box is arranged on one side close to the movable cavity in the box body, a fan is arranged at one end of the third bevel gear, the fan is, thereby improving the filtering efficiency of the device.
Description
Technical Field
The invention relates to the technical field of actuating systems, in particular to a filtering component of an electric hydrostatic actuator system.
Background
The electro-hydrostatic actuator is an integrated hydraulic system, integrates and miniaturizes a motor, a hydraulic pump, an oil tank, an actuator, a detection element, a controller and the like, so that the novel integrated actuation system is small in size, light in weight and high in performance, can realize all functions of a traditional hydraulic system, overcomes some inherent defects of the traditional hydraulic system, and has great theoretical significance and practical value. The quick-plug and quick-use electric actuator has a unique quick-plug and quick-use function, and is simple and convenient to install, namely, an oil cylinder is installed, then a cable is connected to a power supply and a controller, and the electric hydrostatic actuator can work. The hydraulic oil filter device has the advantages that the pollution caused by complicated pipe arrangement, liquid filling, debugging and system installation processes of the traditional hydraulic system is avoided, the service life of a hydraulic element is damaged due to the pollution, a hydraulic oil cylinder is required to be used in an electric hydrostatic actuator, a filter assembly is required to be used in a stamping oil tank connected with the hydraulic oil cylinder to filter hydraulic oil returning in the oil tank in the use process, and then the repeated use of the hydraulic oil is ensured;
the filter assembly in the existing electric hydrostatic actuator only carries out filtering treatment on hydraulic oil through the filter screen, and the hydraulic oil cannot be cooled and treated in the use process, and meanwhile, the filter assembly is used for filtering through the self weight of the hydraulic oil, so that the filter effect is poor, the speed is slow, and the integral use of the electric hydrostatic actuator is influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the filter assembly of the electric hydrostatic actuator system, which can drive the cam and the cooling mechanism to work simultaneously through the motor, and can drive the filter screen to vibrate while cooling the hydraulic oil, so that the filtering efficiency of the device is improved.
In order to solve the technical problems, the invention provides the following technical scheme: a filter assembly of an electric hydrostatic actuator system comprises a box body, wherein an oil inlet is arranged above the box body, an oil outlet is arranged at the bottom of the box body, a fine filter screen is arranged inside the box body, two ends of the fine filter screen are movably connected with the inner wall of the box body, a motor is arranged at one side of the box body, a rotating shaft is arranged at the output end of the motor and extends into the box body, a cam is arranged at one end of the rotating shaft extending into the box body, the cam is movably connected with the bottom of the fine filter screen, a movable cavity is arranged on the inner wall of the box body, a first bevel gear is sleeved on one section of the rotating shaft positioned inside the movable cavity, a second bevel gear is meshed with one side of the first bevel gear, a rotating rod is arranged at one end of the second bevel gear, the bottom of the rotating rod is connected with an inner wall bearing of the movable cavity, the cooling mechanism comprises a fourth bevel gear fixed on the rotating rod, a third bevel gear is meshed with one side of the fourth bevel gear, a cooling box is arranged on one side, close to the movable cavity, of the interior of the box body, a fan is arranged at one end of the third bevel gear and located inside the cooling box, and a convection mechanism is arranged on one side of the fan.
As a preferable technical scheme, two sides of the fine filter screen are provided with sliding mechanisms, each sliding mechanism comprises a sliding groove located on the inner wall of the box body, a limiting groove is formed in the inner side of each sliding groove, limiting blocks are fixed to two sides of the fine filter screen, the limiting blocks are located in the limiting grooves and slide, and two ends of the fine filter screen are located in the sliding grooves and slide.
As a preferable technical scheme of the invention, a coarse filter screen is arranged above the fine filter screen, two ends of the coarse filter screen are fixed on the inner walls of two sides of the box body by fixing blocks, and the diameter of filter holes on the coarse filter screen is twice that of the filter holes on the fine filter screen.
As a preferred technical scheme of the present invention, a fixing seat is disposed outside the motor, the fixing seat is fixedly connected to an outer wall of the box body, fixing rods are disposed inside the fixing seat, a plurality of groups of fixing rods are uniformly distributed around the outside of the motor, and the motor is fixed in the fixing seat through the plurality of groups of fixing rods.
As a preferable technical scheme of the invention, the fans are provided with a plurality of groups and are connected with the rotating rods, and the plurality of groups of fans are positioned in the cooling box.
As a preferred technical scheme of the invention, the convection mechanism comprises an air outlet hole positioned on the cooling box, the air outlet hole is positioned on one side of the cooling box, which is connected with the inner wall of the box body, convection holes and ventilation holes are respectively arranged on two sides of the movable cavity, the ventilation holes correspond to the air outlet holes one by one, and the convection holes are communicated with the outside of the box body.
As a preferred technical solution of the present invention, the motor is a micro motor.
As a preferred technical scheme of the invention, the oil inlet is provided with an oil inlet pipe, the bottom of the oil inlet pipe is connected with the inside of the box body, and the oil outlet is connected with an oil outlet pipe.
As a preferred technical scheme of the invention, the joints of the oil inlet pipe and the oil outlet pipe and the box body are respectively provided with a sealing ring, and the sealing rings are made of nitrile rubber.
As a preferred technical scheme of the invention, the fixed blocks at the two ends of the coarse filter screen are movably clamped with the coarse filter screen.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. when the device is used, the motor is started to drive the rotating shaft to rotate, so that the cam is driven to rotate, the fine filter screen above the cam can reciprocate up and down, the filtering effect of the device is improved, meanwhile, the first bevel gear on the rotating shaft rotates to drive the second bevel gear meshed with the first bevel gear to rotate, the rotating rod and the fourth bevel gear on the rotating rod rotate, the third bevel gear meshed with the third bevel gear rotates to drive the fan on the third bevel gear to rotate, the cooling treatment of the hydraulic oil in the device is realized, the cooling mechanism can be used for cooling the hydraulic oil and vibrating the fine filter screen through the motor, and the filtering efficiency of the device is improved;
2. the sliding mechanism is arranged, when the device is used, the rotation of the cam drives the fine filter screen to reciprocate up and down in the sliding groove, the limiting groove and the limiting block are arranged to limit the two ends of the fine filter screen, the two ends of the fine filter screen are prevented from slipping off the inner wall of the box body in the sliding process, and the stability of the device is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of the invention at B of FIG. 1;
FIG. 4 is an enlarged view of FIG. 1 at C;
wherein: 1. a box body; 2. an oil inlet; 3. an oil outlet; 4. coarse filtration; 5. a fine filter screen; 6. a cam; 7. a motor; 8. a fixed seat; 9. a movable cavity; 10. a cooling tank; 11. a chute; 12. a limiting groove; 13. a limiting block; 14. a rotating shaft; 15. a second bevel gear; 16. a first bevel gear; 17. a rotating rod; 18. a convection hole; 19. a fan; 20. an air outlet; 21. a fourth bevel gear; 22. a third bevel gear; 23. a vent hole.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in fig. 1, 3 and 4, the invention provides a filter assembly of an electric hydrostatic actuator system, which comprises a box body 1, an oil inlet 2 is arranged above the box body 1, an oil outlet 3 is arranged at the bottom of the box body 1, a fine filter screen 5 is arranged inside the box body 1, two ends of the fine filter screen 5 are movably connected with the inner wall of the box body 1, a motor 7 is arranged at one side of the box body 1, a rotating shaft 14 is arranged at the output end of the motor 7, the rotating shaft 14 extends into the box body 1, a cam 6 is arranged at one end of the rotating shaft 14 extending into the box body 1, the cam 6 is movably connected with the bottom of the fine filter screen 5, a movable cavity 9 is arranged on the inner wall of the box body 1, a first bevel gear 16 is sleeved on a section of the rotating shaft 14 located inside the movable cavity 9, a second bevel gear 15 is meshed with one side of the first bevel gear 16, a rotating rod 17 is arranged at, the bottom of the rotating rod 17 is connected with an inner wall bearing of the movable cavity 9, one side of the rotating rod 17 is provided with a cooling mechanism, the cooling mechanism comprises a fourth bevel gear 21 fixed on the rotating rod 17, one side of the fourth bevel gear 21 is meshed with a third bevel gear 22, one side of the interior of the box body 1 close to the movable cavity 9 is provided with a cooling box 10, one end of the third bevel gear 22 is provided with a fan 19, the fan 19 is located in the cooling box 10, and one side of the fan 19 is provided with a convection mechanism;
when the device is used, the rotating shaft 14 is driven to rotate through the starting motor 7, the cam 6 is driven to rotate, so that the fine filter screen 5 above the cam 6 can move up and down in a reciprocating mode, the filtering effect of the device is improved, meanwhile, the first bevel gear 16 on the rotating shaft 14 rotates to drive the second bevel gear 15 meshed with the first bevel gear to rotate, the fourth bevel gears 21 on the rotating rod 17 and the rotating rod 17 are made to rotate, the third bevel gear 22 meshed with the third bevel gear is made to rotate, the fan 19 on the third bevel gear 22 is driven to rotate, cooling treatment of hydraulic oil inside the device is achieved, cooling of the hydraulic oil by the cooling mechanism and vibration of the fine filter screen 5 can be achieved through the motor 7, and the filtering efficiency of the device is improved.
In another embodiment, as shown in fig. 1 and 2, the invention discloses that sliding mechanisms are arranged on two sides of a fine filter screen 5, each sliding mechanism comprises a sliding groove 11 located on the inner wall of a box body 1, a limiting groove 12 is arranged on the inner side of each sliding groove 11, limiting blocks 13 are fixed on two sides of the fine filter screen 5, each limiting block 13 is located in each limiting groove 12 and slides, and two ends of the fine filter screen 5 are located in the sliding grooves 11 and slide;
when using this device, the rotation through cam 6 has driven thin filter screen 5 and has carried out up-and-down motion in spout 11, can carry out spacingly to the both ends of thin filter screen 5 through setting up spacing groove 12 and stopper 13, prevents that the both ends of thin filter screen 5 from slipping between gliding in-process and the inner wall of box 1, has improved the inside stability of device.
In another embodiment, as shown in fig. 1, the invention discloses that a coarse filter screen 4 is arranged above a fine filter screen 5, two ends of the coarse filter screen 4 are fixed on the inner walls of two sides of a box body 1 by fixing blocks, and the diameter of filter holes on the coarse filter screen 4 is twice that of the filter holes on the fine filter screen 5;
the working principle and the beneficial effect of the technical characteristics are realized.
In another embodiment, as shown in fig. 1, the invention discloses that a fixing seat 8 is arranged outside a motor 7, the fixing seat 8 is fixedly connected with the outer wall of a box body 1, fixing rods are arranged inside the fixing seat 8, a plurality of groups of fixing rods are arranged and uniformly distributed around the outside of the motor 7, and the motor 7 is fixed in the fixing seat 8 through the plurality of groups of fixing rods; can fix motor 7 through setting up fixing base 8 and multiunit dead lever, and then can improve motor 7's stability, prevent that motor 7 from rocking at the during operation and causing the device unstable.
In another embodiment, as shown in fig. 1, the present invention discloses that a plurality of sets of fans 19 are provided and are connected to the rotating rod 17, and the plurality of sets of fans 19 are located inside the cooling box 10; the cooling effect of the cooling mechanism on the hydraulic oil inside the device can be improved by arranging a plurality of groups of fans 19.
In another embodiment, as shown in fig. 1 and 4, the invention discloses that the convection mechanism comprises an air outlet 20 located on the cooling box 10, the air outlet 20 is located on one side of the cooling box 10 connected with the inner wall of the box body 1, two sides of the movable cavity 9 are respectively provided with a convection hole 18 and a vent hole 23, the vent holes 23 are in one-to-one correspondence with the air outlet 20, and the convection hole 18 is communicated with the outside of the box body 1; when the device is used, the air outlet hole 20 on the cooling box 10, the convection holes 18 on two sides of the movable cavity 9 and the ventilation holes 23 are matched to provide an air convection environment for the fan 19, so that the service life of the fan 19 is prolonged.
In another embodiment, as shown in fig. 1, the present invention discloses that the motor 7 is a micro motor; the micro motor is adopted to drive the rotating shaft 14 to rotate, so that the whole size of the device can be reduced, and the device is convenient to install.
In another embodiment, as shown in fig. 1, the invention discloses that an oil inlet pipe is arranged on an oil inlet 2, the bottom of the oil inlet pipe is connected with the inside of a box body 1, and an oil outlet pipe is connected to an oil outlet 3; the device is convenient to install through setting the oil inlet pipe and the oil outlet pipe.
In another embodiment, as shown in fig. 1, the invention discloses that the joints of the oil inlet pipe and the oil outlet pipe and the tank body 1 are both provided with sealing rings, and the sealing rings are made of nitrile rubber; the sealing ring can prevent the leakage of the oil inlet pipe and the oil outlet pipe at the installation position, and further improves the sealing property of the device.
In another embodiment, as shown in fig. 1, the present invention discloses that the fixing blocks at both ends of the coarse strainer 4 are movably clamped with the coarse strainer 4; the coarse strainer 4 can be conveniently mounted and dismounted by movably clamping the two ends of the coarse strainer 4 with the fixing blocks.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A filter assembly of an electro-hydrostatic actuator system, comprising a housing (1), characterized in that: an oil inlet (2) is arranged above the box body (1), an oil outlet (3) is arranged at the bottom of the box body (1), a fine filter screen (5) is arranged inside the box body (1), two ends of the fine filter screen (5) are movably connected with the inner wall of the box body (1), a motor (7) is arranged on one side of the box body (1), a rotating shaft (14) is arranged at the output end of the motor (7), the rotating shaft (14) extends into the box body (1), a cam (6) is arranged at one end of the rotating shaft (14) extending into the box body (1), the cam (6) is movably connected with the bottom of the fine filter screen (5), a movable cavity (9) is arranged on the inner wall of the box body (1), a first bevel gear (16) is sleeved on one section of the rotating shaft (14) positioned inside the movable cavity (9), and a second bevel gear (15) is meshed with one side of the first bevel gear (16), the one end of second bevel gear (15) is equipped with bull stick (17), the bottom and the inner wall bearing in activity chamber (9) of bull stick (17) are connected, one side of bull stick (17) is equipped with cooling body, cooling body is including fixing fourth bevel gear (21) on bull stick (17), the meshing of one side of fourth bevel gear (21) is equipped with third bevel gear (22), one side that box (1) inside is close to activity chamber (9) is equipped with cooler bin (10), the one end of third bevel gear (22) is equipped with fan (19), fan (19) are located cooler bin (10) inside, one side of fan (19) is equipped with convection current mechanism.
2. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: the both sides of thin filter screen (5) are equipped with slide mechanism, slide mechanism is including spout (11) that are located box (1) inner wall, the inboard of spout (11) is equipped with spacing groove (12), the both sides of thin filter screen (5) all are fixed with stopper (13), stopper (13) are located spacing groove (12) inside and slide, the both ends of thin filter screen (5) are located spout (11) inside and slide.
3. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: the top of fine filter screen (5) is equipped with coarse filter screen (4), the both ends of coarse filter screen (4) are fixed on the both sides inner wall of box (1) by the fixed block, the diameter of the filtration pore on coarse filter screen (4) is the twice of the filtration pore on fine filter screen (5).
4. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: the outside of motor (7) is equipped with fixing base (8), fixed connection between the outer wall of fixing base (8) and box (1), the inside of fixing base (8) is equipped with the dead lever, the dead lever is equipped with multiunit and evenly distributed around the outside of motor (7), motor (7) are fixed in fixing base (8) through the multiunit dead lever.
5. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: the fan (19) is provided with a plurality of groups and is connected with the rotating rod (17), and the plurality of groups of fans (19) are all located inside the cooling box (10).
6. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: convection current mechanism is including exhaust vent (20) that are located on cooler bin (10), exhaust vent (20) are located one side of the inner wall of connecting box (1) on cooler bin (10), the both sides in activity chamber (9) are equipped with convection hole (18) and ventilation hole (23) respectively, ventilation hole (23) and exhaust vent (20) one-to-one, convection hole (18) are linked together with the outside of box (1).
7. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: the motor (7) is a micro motor.
8. The filter assembly of an electro-hydrostatic actuator system of claim 1, wherein: the oil inlet (2) is provided with an oil inlet pipe, the bottom of the oil inlet pipe is connected with the inside of the box body (1), and the oil outlet (3) is connected with an oil outlet pipe.
9. The filter assembly of an electro-hydrostatic actuator system of claim 8, wherein: the oil inlet pipe and the oil outlet pipe are both provided with sealing rings at the joint of the oil inlet pipe and the oil outlet pipe and the box body (1), and the sealing rings are made of nitrile rubber.
10. The filter assembly of the electro-hydrostatic actuator system of claim 3, wherein: the fixed blocks at the two ends of the coarse strainer (4) are movably clamped with the coarse strainer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267696.4A CN113041705A (en) | 2021-03-12 | 2021-03-12 | Filtering component of electric hydrostatic actuator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267696.4A CN113041705A (en) | 2021-03-12 | 2021-03-12 | Filtering component of electric hydrostatic actuator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113041705A true CN113041705A (en) | 2021-06-29 |
Family
ID=76511630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110267696.4A Pending CN113041705A (en) | 2021-03-12 | 2021-03-12 | Filtering component of electric hydrostatic actuator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113041705A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150041414A1 (en) * | 2013-08-09 | 2015-02-12 | Ledwell & Son Enterprises, Inc. | Hydraulic fluid cooler and filter |
| CN206295655U (en) * | 2016-12-15 | 2017-07-04 | 重庆瑞恩涂料有限公司 | A kind of coating filters cooling device |
| CN208474920U (en) * | 2018-07-02 | 2019-02-05 | 天津泰卓科技有限公司 | A kind of lubricant oil cooling apparatus |
| CN210024647U (en) * | 2019-03-21 | 2020-02-07 | 东莞市曼欧实业投资有限公司 | Metal processing coolant liquid recovery unit |
| CN212069526U (en) * | 2020-01-24 | 2020-12-04 | 葛立志 | New material is raw materials filter equipment for synthesis |
| CN212512287U (en) * | 2020-06-12 | 2021-02-09 | 苏州凯捷塑料有限公司 | Dehumidification equipment is used in plastic pellet processing |
-
2021
- 2021-03-12 CN CN202110267696.4A patent/CN113041705A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150041414A1 (en) * | 2013-08-09 | 2015-02-12 | Ledwell & Son Enterprises, Inc. | Hydraulic fluid cooler and filter |
| CN206295655U (en) * | 2016-12-15 | 2017-07-04 | 重庆瑞恩涂料有限公司 | A kind of coating filters cooling device |
| CN208474920U (en) * | 2018-07-02 | 2019-02-05 | 天津泰卓科技有限公司 | A kind of lubricant oil cooling apparatus |
| CN210024647U (en) * | 2019-03-21 | 2020-02-07 | 东莞市曼欧实业投资有限公司 | Metal processing coolant liquid recovery unit |
| CN212069526U (en) * | 2020-01-24 | 2020-12-04 | 葛立志 | New material is raw materials filter equipment for synthesis |
| CN212512287U (en) * | 2020-06-12 | 2021-02-09 | 苏州凯捷塑料有限公司 | Dehumidification equipment is used in plastic pellet processing |
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Application publication date: 20210629 |
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| RJ01 | Rejection of invention patent application after publication |