CN110444231B - Magnetic resistance magnetic head of separated magnetic head structure - Google Patents
Magnetic resistance magnetic head of separated magnetic head structure Download PDFInfo
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- CN110444231B CN110444231B CN201910780402.0A CN201910780402A CN110444231B CN 110444231 B CN110444231 B CN 110444231B CN 201910780402 A CN201910780402 A CN 201910780402A CN 110444231 B CN110444231 B CN 110444231B
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- magnetic head
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- head
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
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- Manufacturing & Machinery (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
The invention relates to the technical field of a magnetic resistance magnetic head, and discloses a magnetic resistance magnetic head with a separated magnetic head structure, which comprises a main rotating shaft, wherein the outer side of the main rotating shaft is connected with a plurality of magnetic disks, the upper surface and the lower surface of each magnetic disk are connected with a working magnetic head, the upper end of each working magnetic head is connected with a magnetic head arm, the other end of each magnetic head arm is connected with a magnetic head frame, the side surface of each working magnetic head is connected with a scraping blade, the inside of each scraping blade is connected with a gear, the lower end of each gear is connected with a. Through the magnetic head arm rotating a certain angle along with the magnetic head rotating shaft, the metal ball on the magnetic head arm slides at the arc-shaped resistor, the driving gear of the driving device rotates a certain angle, the driving gear is meshed with the tooth row, and the working magnetic head is matched with the sliding groove through the arc-shaped key and moves relatively to the working magnetic head.
Description
Technical Field
The invention relates to the technical field of a magnetic head, in particular to a magnetic head with a separated magnetic head structure.
Background
Magnetoresistive head technology MR, short for magnetoresistive head. The MR technology can record data at a higher actual recording density, thereby increasing the capacity of the hard disk and improving the data throughput. The operating principle of the magnetoresistive head is based on the magnetoresistive effect, which is centered on a small piece of metallic material whose resistance varies with the magnetic field, although at a rate of less than 2%, because the magnetoresistive element is connected to a very sensitive amplifier, the small resistance variation can be detected. The MR technology can increase the capacity of the hard disk by more than 40 percent, thereby greatly improving the throughput rate of the magnetic resistance magnetic head and reducing the volume of the hard disk.
The magnetic head is used in cooperation with the magnetic grid ruler and used for reading information stored on the magnetic grid ruler, but due to the requirement of information reading, a larger and variable gap is not allowed between the magnetic head and the magnetic grid ruler, so that the surfaces of the magnetic head and the magnetic grid ruler are fragile and easy to damage, when the magnetic head and the magnetic grid ruler move relatively, impurities easily scratch the surfaces of the magnetic head and the magnetic grid ruler, and the existing scratch prevention device is small in cleaning range or large in cleaning range but large in size and easy to collide with other devices.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the magnetic resistance magnetic head with the separated magnetic head structure, which has the advantages of preventing the magnetic head and the magnetic grid ruler from being scratched, having a large cleaning range and being capable of being automatically adjusted, and solves the problems that the magnetic head and the magnetic grid ruler are scratched by impurities in the existing magnetic head equipment and have low practical effect.
(II) technical scheme
In order to achieve the purposes of preventing the magnetic head and the magnetic grid ruler from being scratched, having a large cleaning range and being capable of being automatically adjusted, the invention provides the following technical scheme: the utility model provides a magnetic resistance magnetic head of disconnect-type magnetic head structure, including main pivot, a plurality of discs of outside fixed connection of main pivot, the disc is provided with the sector in the region that is close to main pivot, the upper and lower surface sliding connection of disc has the work magnetic head, the upper end fixedly connected with head arm of work magnetic head, the other end fixedly connected with head frame of head arm, the inside rotation of head frame is connected with the magnetic head pivot, the side sliding connection of work magnetic head has the doctor-bar, the inside meshing of doctor-bar is connected with the gear, the fixedly connected with support of the lower extreme of gear, the work magnetic head has arc resistance in one side sliding connection who is.
Preferably, one side of the working magnetic head, which slides in the scraping blade, is fixedly connected with an arc key, and the arc key ensures that the scraping blade slides stably in the working magnetic head.
Preferably, a metal ball is fixedly connected to one side of the magnetic head arm close to the magnetic disk, slides on the arc-shaped resistor, and changes the angle through the magnetic head rotating shaft to indirectly change the arc-shaped resistor, so that the driving gear of the driving device is controlled to rotate.
Preferably, a rectangular groove is formed in the scraping blade, the tooth row is fixedly connected to the inner surface of the rectangular groove in the scraping blade, and a sliding groove is formed in the scraping blade and on one side, sliding with the working magnetic head, of the scraping blade.
Preferably, the head arms are at the left and right ends of the wiper when the working head is at the critical position on the disk.
Preferably, the rows and gears have matching teeth to reduce wear and transmission vibrations.
Preferably, the arc resistor is in the shape of a circular magnetic head spindle, so that the rotation angle of the magnetic head spindle changes in proportion to the resistance of the arc resistor.
Preferably, a gap is left between the working head and the magnetic disk.
(III) advantageous effects
Compared with the prior art, the invention provides a magnetic resistance magnetic head with a separated magnetic head structure, which has the following beneficial effects:
the magnetoresistive head of the separated magnetic head structure moves to a proper distance on a magnetic disk through a magnetic head rotating shaft, at the moment, a magnetic head arm rotates with the magnetic head rotating shaft by a certain angle, a metal ball on the magnetic head arm slides on an arc-shaped resistor, the known maximum rotating angle of a working magnetic head on the magnetic disk is &, and the angle of the arc-shaped resistor is equal to the maximum rotating angle, so the rotating angle of the magnetic head rotating shaft is equal to the sliding angle of the metal ball on the arc-shaped resistor, the driving gear can rotate by a certain angle through a driving device according to the resistance change of the arc-shaped resistor, the driving gear is meshed with a tooth row and moves relative to the working magnetic head through the matching of an arc-shaped key and a sliding groove, on one hand, the working magnetic head is ensured not to be scratched, on the other hand, when the working magnetic head is in a critical zone of the magnetic disk, a scraping blade is abutted against, the magnetic head is easy to collide when working in the critical area of the magnetic disk, and the cleaning range is large, so that the problems that the magnetic head and the magnetic grid ruler are scratched due to impurities in the existing magnetic head equipment and the practical effect is low are solved.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
FIG. 3 is a top view of an associated structure for a working head of the present invention;
FIG. 4 is a sectional view of a wiper blade according to the present invention in a front view;
FIG. 5 is a cross-sectional side view of an operative magnetic head configuration of the present invention;
FIG. 6 is a diagram of a process of operating a magnetic head at critical locations in accordance with the present invention
FIG. 7 is a schematic diagram showing the relationship between the magnetic head arm and the arc-shaped resistor according to the present invention
FIG. 8 is a schematic front view of a head arm according to the present invention.
In the figure: 1 main rotating shaft, 2 magnetic disks, 3 sectors, 4 working magnetic heads, 401 arc keys, 5 magnetic head arms, 501 metal balls, 6 magnetic head frames, 7 magnetic head rotating shafts, 8 scraping blades, 801 rectangular grooves, 802 tooth rows, 803 sliding grooves, 9 gears, 10 supports and 11 arc resistors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-8, a magnetoresistive head with a split head structure includes a main shaft 1, a plurality of magnetic disks 2 fixedly connected to an outer side of the main shaft 1, sectors 3 disposed in regions of the magnetic disks 2 close to the main shaft 1, working heads 4 slidably connected to upper and lower surfaces of the magnetic disks 2, an arc key 401 fixedly connected to a side of the working heads 4 sliding in a wiper 8, and the arc key 401 ensures that the wiper 8 slides stably in the working heads 4. The upper end of the working magnetic head 4 is fixedly connected with a magnetic head arm 5, the other end of the magnetic head arm 5 is fixedly connected with a magnetic head frame 6, the inside of the magnetic head frame 6 is rotatably connected with a magnetic head rotating shaft 7, the side surface of the working magnetic head 4 is slidably connected with a scraping blade 8, a rectangular groove 801 is formed in the scraping blade 8, a tooth row 802 is fixedly connected in the scraping blade 8 and on the inner surface of the rectangular groove 801, a sliding groove 803 is formed in the scraping blade 8 and on one side, on which the working magnetic head 4 slides, and when the working magnetic head 4 is at the critical position of the magnetic disk 2, the magnetic head arm 5 is respectively at the left end and.
The wiper blade 8 has a toothed wheel 9 in engagement with the inside, and the row 802 and the toothed wheel 9 have corresponding teeth, so that wear and transmission vibrations are reduced. The lower end of the gear 9 is fixedly connected with a bracket 10, the working magnetic head 4 is connected with an arc-shaped resistor 11 in a sliding way at one side close to the magnetic disc 2, the magnetic head arm 5 is connected with a metal ball 501 at one side close to the magnetic disc 2, the metal ball 501 slides on the arc-shaped resistor 11, the angle is changed through the magnetic head rotating shaft 7 to indirectly change the arc-shaped resistor 11, thereby controlling the driving gear 9 to rotate, the shape of the arc-shaped resistor 11 is the arc-shaped resistor with the magnetic head rotating shaft 7 as a circle, thus, the rotation angle of the magnetic head rotating shaft 7 is changed in proportion to the resistance of the arc-shaped resistor 11, the shape of the arc-shaped resistor 11 is the arc-shaped resistor with the circular magnetic head rotating shaft 7, thus, the rotation angle of the magnetic head rotating shaft 7 is changed in proportion to the resistance of the arc resistor 11, and when the magnetic head 4 is operated at the critical position of the magnetic disk 2, the metal balls 501 are respectively at the leftmost end and the rightmost end of the arc resistor 11.
The working principle is as follows: in the magnetoresistive head of the separated type magnetic head structure, as shown in fig. 4, in order to prevent the working magnetic head 4 from being scratched, a wiper 8 is provided at an outer side of the working magnetic head 4, the wiper 8 wipes off dust and other solid particles on the magnetic disk 2, when in operation, the magnetic head spindle 7 moves to a proper distance on the magnetic disk 2 according to the selection of a reading speed, and at this time, the magnetic head arm 5 rotates at a certain angle along with the magnetic head spindle 7, the metal ball 501 on the magnetic head arm 5 slides on the arc-shaped resistor 11, and it is known that the maximum rotation angle &ofthe working magnetic head 4 on the magnetic disk 2, the angle of the arc-shaped resistor 11 is & equal to the maximum rotation angle, so that the rotation angle of the magnetic head spindle 7 is equal to the sliding angle of the metal ball 501 on the arc-shaped resistor 11, and the driving gear 9 can rotate at a certain angle, through the matching of the arc-shaped key 401 and the sliding groove 803 and the relative movement of the working magnetic head 4, when the working magnetic head 4 is at the outermost end of the magnetic disk 2, the scraping blade 8 is attached to one end of the working magnetic head 4 at the outer side of the magnetic disk 2, when the working magnetic head 4 is at the innermost end of the magnetic disk 2, the scraping blade 8 is attached to one end of the working magnetic head 4 at the inner side of the magnetic disk 2, and by the structure, on one hand, the working magnetic head 4 is not scratched, on the other hand, when the working magnetic head 4 is at the critical area of the magnetic disk 2, the scraping blade 8 abuts against one side of the working magnetic head 4, and the scraping blade 8 is aligned with one side of the magnetic head arm 5, so that the phenomenon that the scraping blade 8 protrudes too much.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A magnetoresistive head of a split head configuration, comprising a main spindle (1), characterized in that: the magnetic disc type magnetic head comprises a main rotating shaft (1), a magnetic disc (2) is fixedly connected to the outer side of the main rotating shaft (1), sectors (3) are arranged in the region, close to the main rotating shaft (1), of the magnetic disc (2), working magnetic heads (4) are connected to the upper surface and the lower surface of the magnetic disc (2) in a sliding mode, a magnetic head arm (5) is fixedly connected to the outer side of the working magnetic heads (4), a magnetic head frame (6) is fixedly connected to the left end of the magnetic head arm (5), a magnetic head rotating shaft (7) is rotatably connected to the inner portion of the magnetic head frame (6), scraping blades (8) are slidably connected to the side faces of the working magnetic heads (4), gears (9) are meshed with the inner portions of the scraping blades (8), a support (10) is fixedly;
an arc-shaped key (401) is fixedly connected to one side, sliding in the scraping blade (8), of the working magnetic head (4);
a rectangular groove (801) is formed in the scraping blade (8), a tooth row (802) is fixedly connected to the inner surface of the rectangular groove (801) in the scraping blade (8), and teeth corresponding to the gear (9) are arranged on the tooth row (802); a sliding groove (803) for accommodating an arc key is formed in the scraping blade (8) and on one side, which slides with the working magnetic head (4); the magnetic head arm (5) is fixedly connected with a metal ball (501) which slides on an arc-shaped resistor at one side close to the magnetic disk (2);
the arc-shaped resistor (11) is an arc-shaped resistor with a round magnetic head rotating shaft (7); and the scraper also comprises a driving device, and the driving device can drive the gear to rotate for a certain angle according to the change of the arc resistance.
2. A magnetoresistive head of a split head architecture as claimed in claim 1, wherein: when the working magnetic head (4) is at the critical position of the magnetic disk (2), the magnetic head arms (5) are respectively arranged at the left end and the right end of the scraping blade (8).
3. A magnetoresistive head of a split head architecture as claimed in claim 1, wherein: and a gap is reserved between the working magnetic head (4) and the magnetic disk (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780402.0A CN110444231B (en) | 2019-08-22 | 2019-08-22 | Magnetic resistance magnetic head of separated magnetic head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780402.0A CN110444231B (en) | 2019-08-22 | 2019-08-22 | Magnetic resistance magnetic head of separated magnetic head structure |
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| Publication Number | Publication Date |
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| CN110444231A CN110444231A (en) | 2019-11-12 |
| CN110444231B true CN110444231B (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910780402.0A Active CN110444231B (en) | 2019-08-22 | 2019-08-22 | Magnetic resistance magnetic head of separated magnetic head structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111863037B (en) * | 2020-07-28 | 2021-08-10 | 洛阳师范学院 | Computer cavity device for avoiding impact sound caused by abnormality during displacement |
Citations (5)
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|---|---|---|---|---|
| CN1115068A (en) * | 1994-04-01 | 1996-01-17 | 国际商业机器公司 | Actuator and file level initialization of magnetor esistive transducers |
| CN1841508A (en) * | 2005-03-30 | 2006-10-04 | 富士通株式会社 | Head stack assembly, its manufacturing method, and magnetic disc drive having the same |
| CN203456092U (en) * | 2013-08-16 | 2014-02-26 | 北京凯润达精密仪器有限公司 | Magnetic head scraping blade apparatus |
| CN204018254U (en) * | 2014-06-17 | 2014-12-17 | 北京凯润达精密仪器有限公司 | Magnetic railings ruler device magnetic head protecting jacket structure |
| CN206528405U (en) * | 2016-10-10 | 2017-09-29 | 安徽工程大学机电学院 | Exterior mirror for vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04325977A (en) * | 1991-04-25 | 1992-11-16 | Alps Electric Co Ltd | Floating magnetic head |
| JP3532112B2 (en) * | 1999-02-15 | 2004-05-31 | 松下電器産業株式会社 | Fixed magnetic recording device |
| US20030074784A1 (en) * | 1999-10-29 | 2003-04-24 | Yoshiyuki Konishi | Method of forming protective film on magnetic head |
| JP4408334B2 (en) * | 2001-03-08 | 2010-02-03 | 株式会社日立グローバルストレージテクノロジーズ | Polishing device for magnetic head element |
| JP4926738B2 (en) * | 2007-02-02 | 2012-05-09 | 昭和電工株式会社 | Magnetic recording medium inspection apparatus and magnetic recording medium inspection method |
| US20140177102A1 (en) * | 2012-12-21 | 2014-06-26 | Seagate Technology Llc | Multi-reader method and apparatus |
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2019
- 2019-08-22 CN CN201910780402.0A patent/CN110444231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115068A (en) * | 1994-04-01 | 1996-01-17 | 国际商业机器公司 | Actuator and file level initialization of magnetor esistive transducers |
| CN1841508A (en) * | 2005-03-30 | 2006-10-04 | 富士通株式会社 | Head stack assembly, its manufacturing method, and magnetic disc drive having the same |
| CN203456092U (en) * | 2013-08-16 | 2014-02-26 | 北京凯润达精密仪器有限公司 | Magnetic head scraping blade apparatus |
| CN204018254U (en) * | 2014-06-17 | 2014-12-17 | 北京凯润达精密仪器有限公司 | Magnetic railings ruler device magnetic head protecting jacket structure |
| CN206528405U (en) * | 2016-10-10 | 2017-09-29 | 安徽工程大学机电学院 | Exterior mirror for vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 防尘罩式轮位传感器表面铁粉清理装置的设计;张书和;《铁道运营技术》;20130725;全文 * |
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| CN110444231A (en) | 2019-11-12 |
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Effective date of registration: 20201201 Address after: No. 188, Shengxing Road, Wangdian Town, Xiuzhou District, Jiaxing City, Zhejiang Province Applicant after: SUNYA OPTOELECTRONIC Co.,Ltd. Address before: Room 503, No. 677, Enbo Avenue, Fuchun street, Fuyang District, Hangzhou City, Zhejiang Province (trusteeship 111) Applicant before: Hangzhou Qinyu Intelligent Technology Co.,Ltd. |
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