CN111627644B - Bearing roller demagnetizer and method for demagnetizing by using same - Google Patents
Bearing roller demagnetizer and method for demagnetizing by using same Download PDFInfo
- Publication number
- CN111627644B CN111627644B CN202010413230.6A CN202010413230A CN111627644B CN 111627644 B CN111627644 B CN 111627644B CN 202010413230 A CN202010413230 A CN 202010413230A CN 111627644 B CN111627644 B CN 111627644B
- Authority
- CN
- China
- Prior art keywords
- demagnetization
- channel
- demagnetizing
- roller
- motor
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
Abstract
The invention discloses a bearing roller demagnetizing device and a method for demagnetizing by using the same, wherein the device comprises a motor, a speed regulator, a demagnetizing channel and a demagnetizing mechanism; the two ends of a cylindrical demagnetization channel are respectively provided with a feed inlet and a discharge outlet, a spiral blade shaft is rotationally connected in the demagnetization channel, spiral blades are uniformly distributed on the spiral blade shaft, a space between two adjacent spiral blades only receives a single roller each time so that the rollers are separated from each other, the spiral blade shaft is connected with a motor through a belt, and the motor is electrically connected with a speed regulator; the demagnetization mechanism comprises three magnetic poles and a magnetic strip, and the three magnetic poles are all sleeved with coils. The roller enters the demagnetization channel and then overturns and advances to a demagnetization area in a non-contact state under the action of the helical blade shaft, the roller can eliminate the residual magnetism of the demagnetized roller after being impacted by an alternating magnetic field in the demagnetization area, the demagnetization effect is good, the rollers are not interfered with each other and are not scratched, and the qualified rate of the roller finished product is high.
Description
Technical Field
The invention relates to the technical field of demagnetization of bearing rollers, in particular to a bearing roller demagnetization device and a method for demagnetization by using the device.
Background
Grinding of the ball base surface of a bearing roller is an important production link in the production and processing process of a roller bearing, grinding of the ball base surface of the roller is carried out in the state of being adsorbed by a strong magnetic disc, the roller is magnetized during grinding, and after the ball base surface of the roller is processed, the residual magnetism of the roller is far larger than 10mT, and the residual magnetism can cause the edges of two ends of the roller to adsorb a lot of grinding powder. In this case, the detection of the dimensional accuracy of the roller and the processing in the next step are directly affected, and the accuracy and the service life of the roller bearing are further affected.
In the past, a flat demagnetizer or a gantry demagnetizer is used for demagnetizing the rollers. These demagnetizers are not suitable for practical production needs. Such as: the flat demagnetizer demagnetization needs to put the roller flat one by one, rolls the demagnetization on the demagnetizer plane repeatedly, and the process is loaded down with trivial details, and intensity of labour is big, wastes time and energy, and this type of demagnetization equipment all is difficult to make the roller once demagnetize and reaches technical standard, and work efficiency is low. When the gantry demagnetizer is demagnetized, the rollers collide and rub with each other under the action of magnetic field force, so that the surfaces of the rollers are scratched and chamfered, and defective products or waste products are caused. After the grinding of the ball base surface of the roller is finished, the demagnetization devices need to perform demagnetization once again, so that the labor cost is increased.
Disclosure of Invention
In view of the above, the present invention provides a bearing roller demagnetizing device and a method for demagnetizing by using the device, in which each single-grain roller participating in grinding of a spherical base surface is separated from and rolled forward in a magnetic field, and undergoes a demagnetization process under the action of a demagnetizing mechanism to reach a technical standard, and collision and friction between the roller and the roller can be avoided.
The technical scheme adopted by the invention to solve the technical problems is as follows:
a bearing roller demagnetizer comprises a motor, a speed regulator, a demagnetizing channel and a demagnetizing mechanism positioned below the demagnetizing channel; the two ends of a cylindrical demagnetization channel are respectively provided with a feed inlet and a discharge outlet, a spiral blade shaft is rotationally connected in the demagnetization channel, spiral blades capable of pushing rollers arranged in the demagnetization channel to turn and advance are uniformly distributed on the spiral blade shaft, a space between two adjacent spiral blades only receives a single roller each time so that the rollers are mutually separated, the spiral blade shaft is connected with a motor through a belt, and the motor is electrically connected with a speed regulator; demagnetization mechanism is used for forming the demagnetization region in its demagnetization passageway department that corresponds, demagnetization mechanism includes three magnetic pole and a magnetic stripe, and the below of demagnetization passageway is located along the extending direction interval of demagnetization passageway to three magnetic pole, and the one end of three magnetic pole extends to the position that closes on the demagnetization device bottom, and the other end all is connected with the magnetic stripe, all overlaps on the three magnetic pole to be equipped with the coil.
Furthermore, the material of the helical blade shaft is 304 nonmagnetic steel.
Further, the demagnetization mechanism is arranged in the support box, and the support box is fixedly connected with the demagnetization channel.
A bearing roller demagnetization method comprises the following steps:
1) the ground roller to be demagnetized is put into a demagnetization channel of a demagnetization device one by one from a feed inlet, the demagnetization device comprises a demagnetization channel, two ends of which are respectively provided with the feed inlet and a discharge outlet, and also comprises a helical blade shaft, a motor and a speed regulator, wherein the helical blade shaft is arranged in the demagnetization channel and is rotationally connected with the demagnetization channel, the motor drives the helical blade shaft to rotate, the speed regulator is electrically connected with the motor, and helical blades are uniformly distributed on the helical blade shaft; opening a speed regulator and a motor, wherein the motor drives a spiral blade shaft to rotate, and the rotating speed of the motor is regulated through the speed regulator, so that the rotating speed of the motor is matched with the falling speed of a single roller to be demagnetized, and each roller falling into a demagnetization channel is separated by a spiral blade at a corresponding position;
2) the magnetic field demagnetizing device comprises a spiral blade shaft, rollers falling into a demagnetizing channel and a magnetic strip, wherein the rollers roll to move forward in a non-contact state under the action of the spiral blade and enter a demagnetizing area at the bottom of the demagnetizing channel, the demagnetizing area is formed by a demagnetizing mechanism positioned below the demagnetizing channel in the demagnetizing device, the demagnetizing mechanism comprises three magnetic poles and a magnetic strip, the three magnetic poles are arranged below the demagnetizing channel at intervals along the extending direction of the demagnetizing channel, one ends of the three magnetic poles extend to positions close to the bottom of the demagnetizing device, the other ends of the three magnetic poles are connected with the magnetic strip, and the three magnetic poles are all sleeved with coils; the position on the demagnetization channel that three magnetic pole corresponds is strong magnetic position, and the space between two adjacent strong magnetic positions on the demagnetization channel is weak magnetic position, and a plurality of strong magnetic positions and weak magnetic position cross arrangement form the demagnetization region, and the roller that treats that gets into the demagnetization region accomplishes the demagnetization under the impact of alternating magnetic field in the demagnetization region to leave from the discharge gate of demagnetization channel, accomplish the demagnetization process promptly.
Furthermore, the demagnetizing device can be directly connected with a roller ball base surface grinding machine in a line, so that the ground rollers to be demagnetized directly fall into a demagnetizing channel one by one through a feed port, and the rotating speed of the motor is adjusted through a speed regulator, so that the rotating speed of the motor is matched with the grinding speed of a single roller to be demagnetized.
Furthermore, the roller is made of bearing steel and has a specific gravity of 7.81g/cm3The shape is cylindrical or conical.
Has the advantages that:
as described above, the bearing roller demagnetizing device and the method for demagnetizing by using the same according to the present invention have the following beneficial effects:
1. the demagnetizing device comprises a demagnetizing channel internally provided with a spiral blade shaft and a demagnetizing mechanism positioned below the demagnetizing channel, wherein rollers enter the demagnetizing channel from a feed inlet and turn over and advance to a demagnetizing region in a mutually non-contact state under the action of the spiral blade shaft, and the rollers in the demagnetizing region can eliminate the residual magnetism of the demagnetized rollers through the impact of an alternating magnetic field, so that the demagnetizing effect is good; the running speed of the motor is adjusted to be matched with the falling speed of the roller, so that each roller falling into the demagnetization channel can be separated by two adjacent spiral blades back and forth, the two adjacent spiral blades are not interfered with each other, the roller is not scratched, is not damaged by collision, is not magnetized mutually, and the qualified rate of finished rollers is high.
2. The demagnetizing device can be connected with the roller ball base surface grinding machine to work together, and the roller to be demagnetized after grinding directly enters a demagnetizing channel of the demagnetizing device to be demagnetized automatically, so that the process flow is saved, the labor force of operators is reduced, and the working efficiency is improved.
3. The bearing roller demagnetization method can effectively prevent the roller from being scratched and knocked and damaged by chamfering, reduces complicated procedures, improves the working efficiency and improves the roller demagnetization qualification rate.
The present invention will be described in further detail with reference to the drawings and specific examples.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a demagnetizing device in the present invention.
The device comprises a graphic mark 1, a demagnetization channel 2, a feed inlet 3, a speed regulator 4, a motor 5, a belt 6, a bearing 7, a roller 8, a discharge outlet 9, a spiral blade shaft 10, a coil 11, a magnetic pole 12 and a magnetic strip.
Detailed Description
The invention provides a bearing roller 7 demagnetization device and a method for carrying out demagnetization by using the device, which enable the grinded rollers 7 to roll in a demagnetization channel 1 in a non-contact state, magnetic domains in the rollers 7 are disturbed under the impact of an alternating magnetic field with changing intensity for three times, and the magnetism is attenuated in the process of gradually leaving the magnetic field, so that the purpose that the residual magnetism of the rollers 7 after one demagnetization meets the technical standard is achieved.
A bearing roller demagnetizer, please refer to fig. 1, the device includes motor 4, speed regulator 3, demagnetization channel 1 and demagnetizing mechanism located under demagnetization channel 1, both ends of cylindrical demagnetization channel 1 are equipped with feed inlet 2 and discharge outlet 8 respectively, the demagnetization channel 1 is connected with spiral blade shaft 9 in rotation, the spiral blade shaft 9 is connected with motor 4 through belt 5, motor 4 is connected with speed regulator 3 electrically; helical blades capable of pushing the rollers 7 arranged in the demagnetization channel 1 to turn forward are uniformly distributed on the helical blade shaft 9, a space between adjacent helical blades only receives a single roller 7 each time so that the rollers 7 are separated from each other, each single roller 7 is separated from each other by the helical blade in the demagnetization channel 1, namely, a means is adopted to avoid mutual friction collision and mutual magnetization between the rollers 7 and the rollers 7 in the demagnetization process, and the rotation of the helical blades is utilized to enable the adjacent rollers 7 to move forward in the whole demagnetization working interval in a relatively isolated state. Demagnetization mechanism is used for forming the demagnetization region in its demagnetization passageway 1 department that corresponds, and demagnetization mechanism includes three magnetic pole 11 and a magnetic stripe 12, and the below of demagnetization passageway 1 is located along the extending direction interval of demagnetization passageway 1 to three magnetic pole 11, and the one end of three magnetic pole 11 extends to the position that closes on the demagnetization device bottom, and the other end all is connected with magnetic stripe 12, all overlaps on the three magnetic pole 11 to be equipped with coil 10. In detail, in the whole demagnetization process from the time when the roller 7 falls into the demagnetization channel 1 to the time when the roller 7 leaves the discharge hole 8 of the demagnetization channel 1, when the helical blade drives the roller 7 to move forward through a demagnetization area, the helical blade shovels the roller 7 forward like a rotating small shovel, so that the roller 7 passes through three magnetic pole 11 end surface areas, namely three areas with the strongest magnetic field intensity, directional magnetic domains in the roller 7 are disturbed after the roller 7 is impacted by the three alternating magnetic fields, then the roller 7 gradually leaves the alternating magnetic field from the discharge hole 8, and the alternating demagnetization process of the roller 7 is completed.
Wherein, the material of the spiral blade shaft 9 is 304 non-magnetic steel.
In detail, the demagnetization mechanism is arranged in the support box, and the support box is fixedly connected with the demagnetization channel 1.
The method for demagnetizing the bearing roller by using the demagnetizing device comprises the following steps:
1) the ground roller 7 to be demagnetized is put into a demagnetization channel 1 of a demagnetization device one by one from a feed inlet 2, the demagnetization device comprises a demagnetization channel 1, two ends of which are respectively provided with the feed inlet 2 and a discharge outlet 8, and also comprises a spiral blade shaft 9 which is arranged in the demagnetization channel 1 and is rotationally connected with the demagnetization channel, a motor 4 driving the spiral blade shaft 9 to rotate and a speed regulator 3 electrically connected with the motor 4, wherein spiral blades are uniformly distributed on the spiral blade shaft 9; opening the speed regulator 3 and the motor 4, driving the spiral blade shaft 9 to rotate by the motor 4, adjusting the rotating speed of the motor 4 through the speed regulator 3, so that the rotating speed of the motor 4 is matched with the falling speed of a single roller 7 to be demagnetized, and further, isolating each roller 7 falling into the demagnetization channel 1 by the corresponding spiral blade; the matching relation between the feeding of the rollers 7 and the rotating speed of the helical blades can be controlled by adjusting the speed regulator 3, so that the rollers 7 which successively enter the demagnetization channel 1 are demagnetized under the state of being divided by the helical blades. The spiral blade not only plays a role of a propeller, but also can divide the roller 7 front and back, so that the roller 7 is prevented from being collided and damaged, the outer surface of the roller 7 is prevented from being scratched, the rollers 7 are prevented from being magnetized mutually, and the stirring rollers 7 are prevented from rolling and uniformly demagnetized;
2) along with the rotation of the spiral blade shaft 9, each roller 7 falling into the demagnetization channel 1 rolls forwards in a non-contact state under the action of the spiral blade and enters a demagnetization area at the bottom of the demagnetization channel 1, the demagnetization area is formed by a demagnetization mechanism positioned below the demagnetization channel 1 in a demagnetization device, the demagnetization mechanism comprises three magnetic poles 11 and a magnetic strip 12, the three magnetic poles 11 are arranged below the demagnetization channel 1 at intervals along the extension direction of the demagnetization channel 1, one end of each magnetic pole 11 extends to a position close to the bottom of the demagnetization device, the other end of each magnetic pole is connected with the magnetic strip 12, and the three magnetic poles 11 are all sleeved with coils 10; the position on the demagnetization channel 1 corresponding to the three magnetic poles 11 is a strong magnetic position, the space between two adjacent strong magnetic positions on the demagnetization channel 1 is a weak magnetic position, a plurality of strong magnetic positions and weak magnetic positions are arranged in a crossed manner to form a demagnetization area, a roller 7 to be demagnetized entering the demagnetization area is in the demagnetization area, the magnetic field intensity of an alternating magnetic field repeatedly changes from weak-strong-weak, the roller 7 is demagnetized under the magnetic field state until a discharge port 8 leaves, and the demagnetization process is finished.
It should be noted that the demagnetizing device can be directly connected with a ball-based surface grinding machine of the roller 7, so that the grinded roller 7 to be demagnetized directly falls into the demagnetizing channel 1 one by one through the feeding port 2, and the rotating speed of the motor 4 is adjusted through the speed regulator 3, so that the rotating speed of the motor 4 is matched with the grinding speed of a single roller 7 to be demagnetized.
Specifically, the roller 7 is made of bearing steel and has a specific gravity of 7.81g/cm3The shape is cylindrical or conical.
The bearing roller demagnetizing device and the method for demagnetizing by using the device provided by the invention are described in detail above, and the principle and the specific implementation mode of the invention are explained by applying specific examples, and the examples are only used to help understanding the method and the core idea of the invention. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the protective scope of the present invention to those skilled in the art.
Claims (5)
1. A bearing roller demagnetization method is characterized in that: the demagnetization method of the bearing roller comprises the following steps:
1) the ground roller to be demagnetized is put into a demagnetization channel of a demagnetization device one by one from a feed inlet, the demagnetization device comprises a demagnetization channel, two ends of which are respectively provided with the feed inlet and a discharge outlet, and also comprises a helical blade shaft, a motor and a speed regulator, wherein the helical blade shaft is arranged in the demagnetization channel and is rotationally connected with the demagnetization channel, the motor drives the helical blade shaft to rotate, the speed regulator is electrically connected with the motor, and helical blades are uniformly distributed on the helical blade shaft; opening a speed regulator and a motor, wherein the motor drives a spiral blade shaft to rotate, and the rotating speed of the motor is regulated through the speed regulator, so that the rotating speed of the motor is matched with the falling speed of a single roller to be demagnetized, and each roller to be demagnetized falling into a demagnetization channel is separated by a spiral blade at a corresponding part;
2) the magnetic field demagnetizing device comprises a spiral blade shaft, rollers falling into a demagnetizing channel and a magnetic strip, wherein the rollers roll to move forward in a non-contact state under the action of the spiral blade and enter a demagnetizing area at the bottom of the demagnetizing channel, the demagnetizing area is formed by a demagnetizing mechanism positioned below the demagnetizing channel in the demagnetizing device, the demagnetizing mechanism comprises three magnetic poles and a magnetic strip, the three magnetic poles are arranged below the demagnetizing channel at intervals along the extending direction of the demagnetizing channel, one ends of the three magnetic poles extend to positions close to the bottom of the demagnetizing device, the other ends of the three magnetic poles are connected with the magnetic strip, and the three magnetic poles are all sleeved with coils; the position on the demagnetization channel that three magnetic pole corresponds is strong magnetic position, and the space between two adjacent strong magnetic positions on the demagnetization channel is weak magnetic position, and a plurality of strong magnetic positions and weak magnetic position cross arrangement form the demagnetization region, and the roller that treats that gets into the demagnetization region accomplishes the demagnetization under the impact of alternating magnetic field in the demagnetization region to leave from the discharge gate of demagnetization channel, accomplish the demagnetization process promptly.
2. A bearing roller demagnetization method according to claim 1, wherein: the material of the helical blade shaft is 304 nonmagnetic steel.
3. A bearing roller demagnetization method according to claim 1, wherein: the demagnetization mechanism is arranged in the support box, and the support box is fixedly connected with the demagnetization channel.
4. A bearing roller demagnetization method according to claim 1, wherein: the demagnetizing device can be directly connected with a roller ball base surface grinding machine in an on-line mode, so that a roller to be demagnetized after being ground directly falls into a demagnetizing channel one by one through a feed port, and the rotating speed of the motor is adjusted through a speed regulator, so that the rotating speed of the motor is matched with the grinding speed of a single roller to be demagnetized.
5. A bearing roller demagnetization method according to claim 1, wherein: the roller is made of bearing steel, has a specific gravity of 7.81g/cm3, and is cylindrical or conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413230.6A CN111627644B (en) | 2020-05-15 | 2020-05-15 | Bearing roller demagnetizer and method for demagnetizing by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413230.6A CN111627644B (en) | 2020-05-15 | 2020-05-15 | Bearing roller demagnetizer and method for demagnetizing by using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111627644A CN111627644A (en) | 2020-09-04 |
| CN111627644B true CN111627644B (en) | 2021-11-30 |
Family
ID=72271885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010413230.6A Active CN111627644B (en) | 2020-05-15 | 2020-05-15 | Bearing roller demagnetizer and method for demagnetizing by using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111627644B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1081193A (en) * | 1965-05-19 | 1967-08-31 | J H Humphreys & Sons Ltd | Improvements in or relating to demagnetisers |
| CN2185264Y (en) * | 1993-05-31 | 1994-12-14 | 能源部电力环境保护研究所 | Electromagnetic magnetizer |
| CN101426664A (en) * | 2006-03-13 | 2009-05-06 | 磁转换技术全球控股有限公司 | Magnetic wheel |
| CN204018000U (en) * | 2014-08-08 | 2014-12-17 | 连云港博云机械有限公司 | A kind of powder dry-type magnetic extractor |
| CN105225790A (en) * | 2015-09-29 | 2016-01-06 | 洛阳轴研科技股份有限公司 | A kind of magnetic gap passage through type demagnetizer |
| CN210039824U (en) * | 2019-05-01 | 2020-02-07 | 苏州维恒轴承制造有限公司 | Demagnetizing device convenient to adjust and used for bearing machining |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205900229U (en) * | 2016-06-24 | 2017-01-18 | 新昌县新剡轴承有限公司 | Bearing demagnetization machine of intellectual detection system bearing surplus magnetic force |
| CN107424721B (en) * | 2017-09-22 | 2023-08-29 | 上海杰灵磁性器材有限公司 | Pipeline demagnetizing device based on permanent magnet structure and application thereof |
-
2020
- 2020-05-15 CN CN202010413230.6A patent/CN111627644B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1081193A (en) * | 1965-05-19 | 1967-08-31 | J H Humphreys & Sons Ltd | Improvements in or relating to demagnetisers |
| CN2185264Y (en) * | 1993-05-31 | 1994-12-14 | 能源部电力环境保护研究所 | Electromagnetic magnetizer |
| CN101426664A (en) * | 2006-03-13 | 2009-05-06 | 磁转换技术全球控股有限公司 | Magnetic wheel |
| CN204018000U (en) * | 2014-08-08 | 2014-12-17 | 连云港博云机械有限公司 | A kind of powder dry-type magnetic extractor |
| CN105225790A (en) * | 2015-09-29 | 2016-01-06 | 洛阳轴研科技股份有限公司 | A kind of magnetic gap passage through type demagnetizer |
| CN210039824U (en) * | 2019-05-01 | 2020-02-07 | 苏州维恒轴承制造有限公司 | Demagnetizing device convenient to adjust and used for bearing machining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111627644A (en) | 2020-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110014334B (en) | Roller continuous grinding device | |
| CN102275096B (en) | Controllable magnetorheological even polishing method and device for removal rate model | |
| CN203592360U (en) | Automatically feeding machine for centerless grinding machine | |
| CN201140349Y (en) | Tile shaped magnet automatic chamfer angle grinder | |
| CN111627644B (en) | Bearing roller demagnetizer and method for demagnetizing by using same | |
| CN105214818A (en) | Slag roller for machining grinding machine classification feeding device | |
| CN204724255U (en) | A kind of grinder | |
| CN203665262U (en) | Grinding mechanism of outer grooves of bearing outer rings | |
| US5797498A (en) | Magnetic separator and sweeping brush used therein | |
| CN106624818B (en) | A kind of four station numerically-controlled machine tools and processing method carrying out turnning and milling and grinding to ball valve body | |
| CN201439454U (en) | Ring automatic pusher | |
| CN104959894A (en) | Bearing cone outer groove grinder | |
| CN207155404U (en) | A kind of blade puts the first edge on a knife or a pair of scissors jaws equipment | |
| US1628618A (en) | Means for handling articles | |
| CN202122984U (en) | Electric stone grinding roll rice mill | |
| CN206795543U (en) | A kind of Texturing Surface of Roll surface polishing device | |
| CN204471165U (en) | With the magnetic core processing unit (plant) of cleaning mechanism | |
| CN209394481U (en) | Magnetically grinding disk and equipment for dome cone rolling surface of roller finishing | |
| CN211219944U (en) | Automatic feeding track of roll core rod numerically controlled grinder | |
| CN209394482U (en) | Magnetically grinding disk and equipment for the finishing of taper roller rolling surface | |
| CN104128853B (en) | Workpiece discharge device and can automatic discharging grinding machine | |
| CN207722952U (en) | Belt-type permanentmagnet separator | |
| CN211589744U (en) | Device for grinding and forming grinding wheel and flange grinding device | |
| CN215694750U (en) | Civil engineering construction waste treatment device | |
| CN108745636A (en) | Vertical band magnetic separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |