CN216566571U - Sewage recovery device of surface water-spraying grinding equipment for bearing machining - Google Patents
Sewage recovery device of surface water-spraying grinding equipment for bearing machining Download PDFInfo
- Publication number
- CN216566571U CN216566571U CN202122781355.7U CN202122781355U CN216566571U CN 216566571 U CN216566571 U CN 216566571U CN 202122781355 U CN202122781355 U CN 202122781355U CN 216566571 U CN216566571 U CN 216566571U
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- Prior art keywords
- coagulation
- sewage
- water
- grinding equipment
- wall
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- Expired - Fee Related
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- 239000010865 sewage Substances 0.000 title claims abstract description 60
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 238000003754 machining Methods 0.000 title claims description 8
- 238000005507 spraying Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 3
- 239000002352 surface water Substances 0.000 claims abstract description 3
- 230000015271 coagulation Effects 0.000 claims description 91
- 238000005345 coagulation Methods 0.000 claims description 91
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 28
- 229910052742 iron Inorganic materials 0.000 abstract description 14
- 238000001179 sorption measurement Methods 0.000 description 7
- OKTJSMMVPCPJKN-NJFSPNSNSA-N Carbon-14 Chemical class [14C] OKTJSMMVPCPJKN-NJFSPNSNSA-N 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses a sewage recovery device of surface water-spraying grinding equipment for bearing processing, which belongs to the technical field of sewage recovery and comprises a chip removal device, wherein the front surface of the chip removal device is communicated with the back surface of a limiting water pipe, and the back surface of the chip removal device is communicated with one end of the front surface of a water inlet pipe. This sewage recovery unit of surface water spray grinding equipment for bearing processing, through removing the bits device with sewage from the inlet tube discharge, open motor and electromagnetic plate, because the electromagnetic plate is hung on the couple, the change of electromagnetic plate has been made things convenient for and has been supplemented the electric quantity, the motor passes through the stirring leaf and drives sewage rotation, because the rotation of sewage, iron fillings in the sewage outwards separate out in rotating, because the setting of electromagnetic plate, the iron fillings that separate out in the sewage are adsorbed on the electromagnetic plate, after the sewage that has handled reachd spacing hole, sewage flows in through spacing water pipe and gathers in the heavy device, because the setting in spacing hole, avoided sewage to get into except that the phenomenon that the bits device takes place the overfilling.
Description
Technical Field
The utility model belongs to the technical field of sewage recovery, and particularly relates to a sewage recovery device of surface water-jet grinding equipment for bearing processing.
Background
The bearing is an important part in the modern mechanical equipment, the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the motion process and ensure the rotation precision of the mechanical rotating body, the bearing can be divided into two categories of a rolling bearing and a sliding bearing according to the difference of the friction properties of moving elements, the rolling bearing generally consists of an outer ring, an inner ring, a rolling body and a retainer, the rolling bearing is divided into two categories of a ball bearing and a roller bearing according to the shape of the rolling body, and in the grinding processing of the bearing, grinding fluid needs to be added to prevent materials from deforming and burning, and the service life of a grinding wheel is prolonged. A large amount of metal sweeps can be followed grinding fluid and discharged together among the current bearing abrasive machining, and the metal sweeps can be mixed together with grinding fluid, leads to being difficult to reuse, with iron adsorption device direct mount inside the device among the existing equipment, and magnetism weakens when iron adsorption is more, and adsorption quality will descend, is difficult to ensure iron fillings efficiency of deposiing simultaneously.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome the defects of the prior art, the utility model provides a sewage recovery device of surface water-spraying grinding equipment for bearing processing, which solves the problems that metal scraps can be mixed with grinding fluid to cause difficulty in recycling, a scrap iron adsorption device is directly arranged in the device, and when the scrap iron adsorption is more, the magnetism is weakened, and the adsorption quality is reduced.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a bearing processing is with sewage recovery unit of surface water spray grinding equipment, includes and removes the bits device, the back that removes the bits device is linked together with the positive one end of inlet tube, the right flank that removes the bits device is articulated mutually through removing bits department round pin axle and the lower surface that removes the bits upper cover plate, the left surface that removes the bits device is linked together with the right flank of blow off pipe, the surface of blow off pipe is provided with the blowdown switch, the front that removes the bits device is linked together with the back of spacing water pipe, the front of spacing water pipe is linked together through the back of coagulating inlet and coagulating device.
As a further scheme of the utility model: the left surface of the coagulation device is communicated with the right side surface of the coagulation object discharge pipe, the outer surface of the coagulation object discharge pipe is provided with a coagulation object switch, the front surface of the coagulation device is communicated with the back surface of a recycling outlet, the inner wall of the coagulation device is provided with activated carbon, the outer surface of the activated carbon is provided with a plurality of filtering holes, the right side surface of the coagulation device is hinged to the lower surface of a coagulation upper cover plate through a coagulation position pin shaft, and the left side surface of the coagulation upper cover plate is provided with a coagulation agent feeding port.
As a further scheme of the utility model: remove the front of bits device and seted up spacing hole, the right flank that removes bits device inner wall is provided with two couples respectively, the upper surface of couple inner wall and the upper surface looks overlap joint of electromagnetic plate inner wall, the left surface of electromagnetic plate is provided with prevents the fence that falls, a plurality of hole that leaks has been seted up to the left surface that prevents the fence that falls, the lower surface that removes bits device inner wall is provided with the stirring leaf, the inner wall of stirring leaf and the top fixed connection of transmission shaft, the bottom of transmission shaft is articulated with the inner wall of motor.
As a further scheme of the utility model: the upper surface of the coagulation upper cover plate is fixedly connected with the lower surface of the coagulation agent control box, and a handle is arranged on the upper surface of the coagulation upper cover plate.
As a further scheme of the utility model: the upper surface of the chip removing upper cover plate is provided with a handle, and the left side surface of the chip removing device is provided with a plurality of heat dissipation holes.
As a further scheme of the utility model: the upper surface of active carbon and fixing device's lower fixed surface is connected, fixing device's lower surface and the last fixed surface of fine filter screen are connected, fixing device's lower surface and the last fixed surface of coarse filter screen are connected.
(III) advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
1. the sewage recovery device of the surface water-spraying grinding equipment for bearing processing comprises a motor, an electromagnetic plate, a stirring blade, a limiting water pipe, a collecting pipe, a dust collecting, the replacement and the electricity supplement of the electromagnetic plate are facilitated, and the problem that the magnetic property of the magnet is weakened and the adsorption quality is reduced is solved;
2. the sewage recovery device of the surface water-spraying grinding equipment for bearing processing is characterized in that a coagulation agent control box is opened, sewage flows into a coagulation device, then the coagulation agent control box begins to put coagulation agent into the coagulation device through a coagulation agent putting opening, due to the arrangement of a coagulation agent controller, the coagulation agent can be accurately put into the coagulation device without causing the phenomenon of too much or insufficient putting, the workload of workers is also reduced, small particle substances in the sewage begin to precipitate under the action of the coagulation agent and then gather on the lower surface of the inner wall of the coagulation device, the precipitated sewage is filtered to form large particle nonmetallic substances through a coarse filter screen, due to the arrangement of a coarse filter screen, various nonmetallic large particles in the filtered sewage are filtered, the large particle nonmetallic substances in the fine filter screen are filtered, due to the arrangement of a fine filter screen, the sewage is filtered more finely, the fishy smell in the filtered sewage is removed through the activated carbon, the treated sewage flows out through the recovery outlet, and harmful gases in the sewage are removed due to the arrangement of the activated carbon, so that the possible harm to workers is reduced;
3. the sewage recovery device of the surface water-spraying grinding equipment for bearing processing is characterized in that a motor is turned off, an electromagnetic plate is taken out from the upper surface of a hook, the electromagnetic plate is turned off, scrap iron drops off from the outer surface of the electromagnetic plate at times without the action of magnetic force, the electromagnetic plate can be detached and taken out, the workload of scrap iron cleaning is reduced, a pollution discharge switch is turned on, the interior of a scrap removing device is washed by clean water and flows out from a pollution discharge pipe, the workload of the scrap removing device during cleaning is reduced due to the arrangement of the pollution discharge pipe, a fixing device is taken out from a coagulation device, a coarse filter screen and a fine filter screen are detached and are washed by clean water and then are installed back to the fixing device, the coarse filter screen and the fine filter screen can be detached, the waste of materials is reduced, the coarse filter screen and the fine filter screen can be repeatedly used, a coagulation switch is turned on, the inner wall of the coagulation device is washed by clean water, and clean water carries stains to flow out from a coagulation material discharge pipe, due to the arrangement of the coagulation object discharge pipe, the workload of cleaning the coagulation device is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic three-dimensional cross-sectional structure of the chip removing device of the present invention;
FIG. 3 is a schematic three-dimensional structure of a poly-countersunk upper cover plate according to the present invention;
FIG. 4 is a schematic three-dimensional structure of the fixing device of the present invention;
in the figure: 1 scraps removing device, 2 water inlet pipes, 3 scraps removing upper cover plates, 4 scraps removing position pin shafts, 5 sewage discharge switches, 6 sewage discharge pipes, 7 heat dissipation holes, 8 coagulation object switches, 9 coagulation object discharge pipes, 10 coagulation devices, 11 coagulation inlets, 12 recovery outlets, 13 coagulation position pin shafts, 14 activated carbon, 15 coagulation agent feeding ports, 16 coagulation upper cover plates, 17 hooks, 18 electromagnetic plates, 19 limiting holes, 20 anti-falling barriers, 21 transmission shafts, 22 stirring blades, 23 motors, 24 coagulation agent control boxes, 25 limiting water pipes, 26 fine filter screens, 27 coarse filter screens and 28 fixing devices.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 4, the present invention provides a technical solution: a sewage recovery device of surface water-spraying grinding equipment for bearing processing comprises a scrap removing device 1, wherein the back surface of the scrap removing device 1 is communicated with one front end of a water inlet pipe 2, the right side surface of the scrap removing device 1 is hinged with the lower surface of a scrap removing upper cover plate 3 through a scrap removing position pin shaft 4, due to the arrangement of the scrap removing upper cover plate 3, the phenomenon that sewage splashes out to pollute the environment when the scrap removing device 1 operates is avoided, the left side surface of the scrap removing device 1 is communicated with the right side surface of a sewage discharge pipe 6, the outer surface of the sewage discharge pipe 6 is provided with a sewage discharge switch 5, due to the arrangement of the sewage discharge switch 5, the cleaning of the scrap removing device 1 is convenient and quick, the front surface of the scrap removing device 1 is communicated with the back surface of a limiting water pipe 25, the front surface of the limiting water pipe 25 is communicated with the back surface of a coagulation device 10 through a coagulation inlet 11, and due to the arrangement of the limiting pipe, the sewage for separating scrap iron can conveniently enter the coagulation device 10, the upper surface of the upper chip removing cover plate 3 is provided with a handle, the left side surface of the chip removing device 1 is provided with a plurality of heat dissipation holes 7, and the temperature of the lower surface of the chip removing device 1 is reduced due to the heat dissipation holes 7, so that the motor 23 is always in a normal-temperature working environment.
Specifically, as shown in fig. 1, the left side surface of the coagulation device 10 is communicated with the right side surface of the coagulation object discharge pipe 9, the coagulation object switch 8 is arranged on the outer surface of the coagulation object discharge pipe 9, the coagulation object switch 8 is arranged, so that the coagulation device 10 is more convenient and quicker to clean, the front surface of the coagulation device 10 is communicated with the back surface of the recovery outlet 12, the inner wall of the coagulation device 10 is provided with activated carbon 14, the outer surface of the activated carbon 14 is provided with a plurality of filtering holes, the activated carbon 14 is more effective in adsorbing harmful substances in sewage due to the arrangement of the filtering holes, the right side surface of the coagulation device 10 is hinged with the lower surface of a coagulation upper cover plate 16 through a coagulation place pin 13, due to the arrangement of the coagulation upper cover plate 16, harmful gas is prevented from overflowing the coagulation device 10, the left side surface of the coagulation upper cover plate 16 is provided with a coagulation agent feeding port 15, due to the arrangement of the coagulation agent feeding port 15, the coagulation agent is more convenient to put in.
Specifically, as shown in fig. 2, the front surface of the scrap removing device 1 is provided with a limiting hole 19, the right side surface of the inner wall of the scrap removing device 1 is respectively provided with two hooks 17, due to the arrangement of the hooks 17, the picking and placing operation of the electromagnetic plate 18 is facilitated, the upper surface of the inner wall of the hook 17 is overlapped with the upper surface of the inner wall of the electromagnetic plate 18, the left side surface of the electromagnetic plate 18 is provided with an anti-falling fence 20, due to the arrangement of the anti-falling fence 20, scrap iron is prevented from sliding down in the scrap removing device 1, the left side surface of the anti-falling fence 20 is provided with a plurality of water leakage holes, due to the arrangement of the water leakage holes, the sewage is prevented from being taken out of the scrap removing device 1 when the electromagnetic plate 18 is taken out, the lower surface of the inner wall of the scrap removing device 1 is provided with stirring blades 22, the inner wall of the stirring blades 22 is fixedly connected with the top end of the transmission shaft 21, due to the arrangement of the stirring blades 22, the sewage generates rotational kinetic energy, the bottom end of the transmission shaft 21 is hinged with the inner wall of the motor 23, due to the arrangement of the motor 23, a large amount of rotational kinetic energy is provided to the agitating blade 22.
Specifically, as shown in fig. 3, the upper surface of the coagulation upper cover plate 16 is fixedly connected with the lower surface of the coagulation agent control box 24, and the upper surface of the coagulation upper cover plate 16 is provided with a handle, so that the coagulation upper cover plate 16 can be opened and closed conveniently due to the arrangement of the handle.
Specifically, as shown in fig. 4, the upper surface of the activated carbon 14 is fixedly connected with the lower surface of the fixing device 28, the lower surface of the fixing device 28 is fixedly connected with the upper surface of the fine filter screen 26, and the lower surface of the fixing device 28 is fixedly connected with the upper surface of the coarse filter screen 27, so that the taking and placing work of the coarse filter screen 27 and the fine filter screen 26 is facilitated due to the arrangement of the fixing device 28.
The working principle of the utility model is as follows:
s1, when the device is used, sewage is discharged into the scrap removing device 1 from the water inlet pipe 2, the motor 23 and the electromagnetic plate 18 are started, the electromagnetic plate 18 is hung on the upper surface of the hook 17, the motor 23 drives the stirring blade 22 to rotate through the transmission pin, the stirring blade 22 drives the sewage to rotate, scrap iron in the sewage deviates outwards in the rotation process, the scrap iron is adsorbed on the outer surface of the electromagnetic plate 18 under the magnetic force action of the electromagnetic plate 18, and the sewage flows into the coagulation device 10 through the limiting water pipe 25 after the treated sewage reaches the limiting hole 19;
s2, when the system is in operation, the coagulation agent control box 24 is opened, after sewage flows into the coagulation device 10, the coagulation agent control box 24 starts to put a coagulation agent into the coagulation device 10 through the coagulation agent putting opening 15, small particulate matters in the sewage start to precipitate under the action of the coagulation agent and then gather on the lower surface of the inner wall of the coagulation device 10, the precipitated sewage passes through the coarse filter screen 27 to filter large particulate nonmetallic matters, the large particulate nonmetallic matters are filtered, then middle particulate nonmetallic matters are filtered through the fine filter screen 26, the filtered sewage removes fishy smell in the sewage through the activated carbon 14, and the treated sewage flows out through the recovery outlet 12;
s3, after the operation is finished, the motor 23 is turned off, the electromagnetic plate 18 is taken out from the upper surface of the hook 17, the electromagnetic plate 18 is turned off, scrap iron falls off the outer surface of the electromagnetic plate 18 in a twinkling without the action of magnetic force, the pollution discharge switch 5 is turned on, the interior of the scrap removing device 1 is washed by clear water and flows out from the pollution discharge pipe 6, the fixing device 28 is taken out from the coagulation device 10, the coarse filter screen 27 and the fine filter screen 26 are detached and washed by the clear water and then are installed back on the fixing device 28, the coagulation switch 8 is turned on, the inner wall of the coagulation device 10 is washed by the clear water, and the clear water carries the dirt to flow out from the coagulation object discharge pipe 9.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides a bearing processing is with sewage recovery unit of surface water spray grinding equipment, includes except that bits device (1), its characterized in that: the back of the scrap removing device (1) is communicated with one end of the front of the water inlet pipe (2), the right side face of the scrap removing device (1) is hinged with the lower surface of the scrap removing upper cover plate (3) through a scrap removing pin shaft (4), the left side face of the scrap removing device (1) is communicated with the right side face of a sewage discharge pipe (6), a sewage discharge switch (5) is arranged on the outer surface of the sewage discharge pipe (6), the front of the scrap removing device (1) is communicated with the back of a limiting water pipe (25), and the front of the limiting water pipe (25) is communicated with the back of a coagulation device (10) through a coagulation inlet (11);
remove the right flank of bits device (1) inner wall and be provided with two couples (17) respectively, the upper surface of couple (17) inner wall and the upper surface looks overlap joint of electromagnetic plate (18) inner wall, the left surface of electromagnetic plate (18) is provided with prevents fence (20), a plurality of hole that leaks has been seted up to the left surface of preventing fence (20) that falls, the lower surface that removes bits device (1) inner wall is provided with stirring leaf (22), the top fixed connection of the inner wall of stirring leaf (22) and transmission shaft (21), the bottom of transmission shaft (21) is articulated with the inner wall of motor (23).
2. The sewage recovery device of the surface water-jet grinding equipment for bearing machining according to claim 1, characterized in that: the left surface of coagulation device (10) is linked together with the right flank of coagulation thing delivery pipe (9), the surface of coagulation thing delivery pipe (9) is provided with coagulation thing switch (8), the front of coagulation device (10) is linked together with the back of retrieving export (12), the inner wall of coagulation device (10) is provided with active carbon (14), a plurality of filtration hole has been seted up to the surface of active carbon (14), the right flank of coagulation device (10) is articulated mutually through the lower surface of coagulation department round pin axle (13) and coagulation upper cover plate (16), the left surface of coagulation upper cover plate (16) has been seted up and has been coagulated the agent and has been put in mouth (15).
3. The sewage recovery device of the surface water-jet grinding equipment for bearing machining according to claim 1, characterized in that: the front surface of the scrap removing device (1) is provided with a limiting hole (19).
4. The sewage recovery device of the surface water-jet grinding equipment for bearing machining according to claim 2, characterized in that: the upper surface of the coagulation upper cover plate (16) is fixedly connected with the lower surface of the coagulation agent control box (24), and a handle is arranged on the upper surface of the coagulation upper cover plate (16).
5. The sewage recovery device of the surface water-jet grinding equipment for bearing machining according to claim 1, characterized in that: the upper surface of the chip removing upper cover plate (3) is provided with a handle, and the left side surface of the chip removing device (1) is provided with a plurality of heat dissipation holes (7).
6. The sewage recovery device of the surface water-jet grinding equipment for bearing machining according to claim 2, characterized in that: the upper surface of active carbon (14) and fixing device (28)'s lower fixed surface is connected, the lower surface of fixing device (28) and the upper fixed surface of fine screen (26) are connected, the lower surface of fixing device (28) and the upper fixed surface of coarse screen (27) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122781355.7U CN216566571U (en) | 2021-11-15 | 2021-11-15 | Sewage recovery device of surface water-spraying grinding equipment for bearing machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122781355.7U CN216566571U (en) | 2021-11-15 | 2021-11-15 | Sewage recovery device of surface water-spraying grinding equipment for bearing machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216566571U true CN216566571U (en) | 2022-05-20 |
Family
ID=81592652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122781355.7U Expired - Fee Related CN216566571U (en) | 2021-11-15 | 2021-11-15 | Sewage recovery device of surface water-spraying grinding equipment for bearing machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216566571U (en) |
-
2021
- 2021-11-15 CN CN202122781355.7U patent/CN216566571U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220520 |