CN111489767B - Hard disk inner magnetic disk driving device based on rotating centrifugal force - Google Patents
Hard disk inner magnetic disk driving device based on rotating centrifugal force Download PDFInfo
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- CN111489767B CN111489767B CN202010306687.7A CN202010306687A CN111489767B CN 111489767 B CN111489767 B CN 111489767B CN 202010306687 A CN202010306687 A CN 202010306687A CN 111489767 B CN111489767 B CN 111489767B
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- disk
- hard disk
- motor
- disc
- turntable
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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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
Abstract
The invention provides a magnetic disk driving device in a hard disk based on a rotating centrifugal force, and relates to the technical field of computer hard disks. This magnetic disc drive device in hard disk based on rotatory centrifugal force, which comprises a housin, the inside bottom fixed mounting of casing has the motor casing, the inside rotation of motor casing is connected with the pivot, the radiating groove has been seted up to the inside of motor casing, the groove of ventilating has been seted up between the inside radiating groove of motor casing, the bottom intercommunication in groove of ventilating has the air outlet. This magnetic disk drive device in hard disk based on rotatory centrifugal force can upwards lift the disc fast at the rotatory in-process of drive disc, has shortened the response time between disc and the magnetic head, has improved the speed of hard disk, can carry out effectual heat dissipation to driving motor, has avoided the epaxial heat conduction of motor pivot to disc department simultaneously, has reduced the temperature of the inside disc of hard disk during operation, has avoided the damage of disc, has improved the life of hard disk.
Description
Technical Field
The invention relates to the technical field of computer hard disks, in particular to a magnetic disk driving device in a hard disk based on a rotating centrifugal force.
Background
The hard disk of computer is a non-volatile memory based on hard rotating disk, and is the main storage equipment of computer, and is formed from magnetic head, disk, motor and main control chip, and its reading and writing mode adopts semi-random access, and can read data in the hard disk in any order, but the reading speeds of different positions are different.
In the process of data access of the hard disk, the motor is required to drive the disk to rotate at a high speed, so that buoyancy is generated to enable the disk to be in contact with the magnetic head, and a sector of data to be accessed is brought below the magnetic head, but the buoyancy is only used when the disk rotates, so that the response time of the disk and the magnetic head is prolonged, the speed of the hard disk is further reduced, the traditional disk is directly connected with a rotating shaft of the motor, the motor generates heat in the operation process, the rotating shaft and a bearing can generate heat by friction in the starting and stopping processes, the heat is easily conducted to the disk, the damage of the disk is easily caused, and the service life of the hard disk is reduced.
In order to solve the above problems, the inventors provide a magnetic disk driving device in a hard disk based on a rotational centrifugal force, which can rapidly lift up a disk in a process of driving the disk to rotate, shorten a response time between the disk and a magnetic head, increase a speed of the hard disk, effectively dissipate heat of a driving motor, simultaneously prevent heat on a rotating shaft of the motor from being conducted to the disk, reduce a temperature of an internal disk during operation of the hard disk, prevent the disk from being damaged, and prolong a service life of the hard disk.
Disclosure of Invention
In order to achieve the purpose, the invention is realized by the following technical scheme: a hard disk inner magnetic disk driving device based on rotary centrifugal force comprises a shell, a motor shell, a rotating shaft, a heat dissipation groove, a ventilation groove, an air outlet, a rotary disk, a sliding block, a spring, fan blades, a connecting rod, a sleeve, a lifting rod, a mounting seat, a transmission rod, a disk and a magnetic head.
Wherein:
a motor shell is fixedly arranged at the bottom end inside the shell, a rotating shaft is rotatably connected inside the motor shell, the interior of the motor shell is provided with heat dissipation grooves, ventilation grooves are arranged between the heat dissipation grooves in the motor shell, the bottom of the ventilation groove is communicated with an air outlet, the top end of the rotating shaft is fixedly provided with a turntable, the inside of the turntable is connected with a slide block in a sliding way, one side of the sliding block close to the center of the rotating disc is fixedly connected with a spring, the bottom end of the sliding block is fixedly provided with a fan blade, the top end of the sliding block is fixedly provided with a connecting rod, the top end of the center of the turntable is fixedly provided with a sleeve, the top of the sleeve is connected with a lifting rod in a sliding way, the top end of the lifting rod is fixedly provided with a mounting seat, the magnetic head is characterized in that a transmission rod is connected between the mounting seat and the connecting rod in a transmission manner, a disk is fixedly mounted on the periphery of the mounting seat, and a magnetic head is arranged at the top of the disk.
Preferably, the heat dissipation groove is communicated with the cavity where the rotating shaft is located, the heat dissipation groove and the ventilation groove are mutually crossed and evenly distributed in the motor casing, and therefore the contact area between the cavity in the rotating shaft and the inner wall of the motor casing is increased.
Preferably, the air outlet runs through the bottom plate of casing, just the bottom in ventilation groove all is linked together with the air outlet, the ventilation groove upwards extends to the top of motor casing, consequently, when the flabellum rotated, can make the air current pass downwards from the top in ventilation groove to finally flow out from the air outlet, and then increase the flow of motor casing surface air, dispel the heat to the motor casing.
Preferably, the quantity of slider is total eight, in the inside evenly distributed of carousel, and all through the inside of the spacing sliding connection of spring elasticity in the carousel, consequently, at the rotatory in-process of carousel, under the effect of centrifugal force, can drive slider extension spring to remove to the outside simultaneously.
Preferably, the fan blades are vertically distributed downwards at the bottom end of the rotating disc, and the direction of the fan blades is aligned with the axis line of the rotating disc, so that the fan blades can fan downwards above the motor shell in the rotating process.
Preferably, the bottom diameter grow of lifter, and spacing sliding connection is in telescopic inside, telescopic inside is filled with hydraulic oil for the lifter can carry out stable upper and lower slip in telescopic inside, and reduce thermal conduction between lifter and the sleeve.
Preferably, the two ends of the transmission rod are respectively rotatably connected with the bottom end of the mounting seat and the top end of the connecting rod, and the top end of the transmission rod inclines outwards, so that the mounting seat and the disk can be lifted upwards under the action of the transmission rod in the process that the sliding block drives the connecting rod to move outwards.
The invention provides a hard disk inner magnetic disk driving device based on a rotating centrifugal force. The method has the following beneficial effects:
1. this magnetic disk drive device in hard disk based on rotatory centrifugal force, through the carousel of pivot top fixed mounting to and the design of transfer line between inside connecting rod of carousel and the disk center mount pad, at the rotatory in-process of carousel drive mount pad and disk, utilize the inside slider of carousel to drive the outward shift of connecting rod under the effect of centrifugal force, can upwards lift mount pad and disk, and then shortened the response time between disk and the magnetic head, improved the speed of hard disk.
2. This magnetic disk drive device in hard disk based on rotatory centrifugal force utilizes the transfer line to drive the rotation of mount pad and disc through the carousel to and cup joint between lifter and the sleeve, can effectively avoid changeing epaxial heat conduction to mount pad and disc department, utilize the flabellum of carousel bottom simultaneously, the inside radiating groove and the ventilation slot of cooperation motor casing, can carry out effectual heat dissipation to driving motor, and then the temperature of inside disc when having reduced the hard disk operation, the damage of disc has been avoided, the life of hard disk has been improved.
Drawings
FIG. 1 is a cross-sectional view of a structure of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;
FIG. 3 is a cross-sectional view of the structure of FIG. 1 taken along line A-A thereof in accordance with the present invention;
FIG. 4 is a cross-sectional view of the structure of FIG. 1 at B-B in accordance with the present invention;
fig. 5 is a schematic structural view of the bottom of the turntable according to the present invention.
In the figure: 1. a housing; 2. a motor housing; 3. a rotating shaft; 4. a heat sink; 5. a ventilation slot; 6. an air outlet; 7. a turntable; 8. a slider; 9. a spring; 10. a fan blade; 11. a connecting rod; 12. a sleeve; 13. a lifting rod; 14. a mounting seat; 15. a transmission rod; 16. a disk; 17. a magnetic head is provided.
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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the magnetic disk drive device in the hard disk based on the rotating centrifugal force is as follows:
referring to fig. 1-5, an internal magnetic disk driving device for a hard disk based on a rotational centrifugal force includes a housing 1, a motor case 2, a rotating shaft 3, a heat dissipating slot 4, a ventilating slot 5, an air outlet 6, a rotating disk 7, a slider 8, a spring 9, fan blades 10, a connecting rod 11, a sleeve 12, a lifting rod 13, a mounting seat 14, a transmission rod 15, a disk 16, and a magnetic head 17.
Wherein:
a motor shell 2 is fixedly arranged at the bottom end inside a shell 1, a rotating shaft 3 is rotatably connected inside the motor shell 2, heat dissipation grooves 4 are formed inside the motor shell 2, the heat dissipation grooves 4 are communicated with a cavity where the rotating shaft 3 is located, the heat dissipation grooves 4 and ventilation grooves 5 are mutually crossed and uniformly distributed inside the motor shell 2 so as to increase the contact area between the cavity inside the rotating shaft 3 and the inner wall of the motor shell 2, ventilation grooves 5 are formed between the heat dissipation grooves 4 inside the motor shell 2, the bottom of the ventilation grooves 5 is communicated with an air outlet 6, the air outlet 6 penetrates through a bottom plate of the shell 1, the bottom ends of the ventilation grooves 5 are communicated with the air outlet 6, and the ventilation grooves 5 extend upwards to the top end of the motor shell 2, so that when a fan blade 10 rotates, air can pass downwards from the top of the ventilation grooves 5 and finally flow out from the air outlet 6, and further increase the flow of the air on the surface of the motor shell 2, the motor shell 2 is cooled, the top end of the rotating shaft 3 is fixedly provided with a rotating disc 7, the inside of the rotating disc 7 is connected with eight sliding blocks 8 in a sliding manner, the eight sliding blocks 8 are uniformly distributed in the rotating disc 7 and are all connected in the rotating disc 7 in an elastic limiting and sliding manner through springs 9, therefore, in the rotating process of the rotating disc 7, the sliding blocks 8 can be simultaneously driven to stretch springs 9 to move outwards under the action of centrifugal force, the springs 9 are fixedly connected to one side of the sliding blocks 8 close to the center of the rotating disc 7, the bottom ends of the sliding blocks 8 are fixedly provided with fan blades 10, the fan blades 10 are vertically distributed downwards at the bottom end of the rotating disc 7 and are aligned with the axial lead of the rotating disc 7, therefore, in the rotating process of the fan blades 10, the fan blades can be fanned downwards above the motor shell 2, the rotating disc 7 utilizes a transmission rod 15 to drive the mounting base 14 and a disc 16 to rotate, and the lifting rod 13 is sleeved with the sleeve 12, can effectively avoid the heat conduction in the pivot 3 to mount pad 14 and 16 departments of disk, utilize the flabellum 10 of carousel 7 bottom simultaneously, cooperate the inside radiating groove 4 of motor casing 2 and ventilation slot 5, can carry out effectual heat dissipation to driving motor, and then reduced the temperature of inside disk 16 when the hard disk operation, avoid the damage of disk 16, improve the life of hard disk.
The top end of the sliding block 8 is fixedly provided with a connecting rod 11, the top end of the center of the rotating disc 7 is fixedly provided with a sleeve 12, the top of the sleeve 12 is connected with a lifting rod 13 in a sliding manner, the diameter of the bottom end of the lifting rod 13 is increased, the lifting rod is connected inside the sleeve 12 in a limiting sliding manner, hydraulic oil is filled inside the sleeve 12, the lifting rod 13 can slide up and down stably inside the sleeve 12, the heat conduction between the lifting rod 13 and the sleeve 12 is reduced, the top end of the lifting rod 13 is fixedly provided with a mounting seat 14, a transmission rod 15 is connected between the mounting seat 14 and the connecting rod 11 in a transmission manner, two ends of the transmission rod 15 are respectively connected with the bottom end of the mounting seat 14 and the top end of the connecting rod 11 in a rotating manner, and the top end of the transmission rod 15 inclines outwards, therefore, in the process that the sliding block 8 drives the connecting rod 11 to move outwards, the mounting seat 14 and the disc 16 can be lifted upwards through the action of the transmission rod 15, the periphery of the mounting seat 14 is fixedly provided with a disk 16, the top of the disk 16 is provided with a magnetic head 17, the turntable 7 is fixedly arranged at the top end of the rotating shaft 3, and the design of a transmission rod 15 between the connecting rod 11 inside the turntable 7 and the central mounting seat 14 of the disk 16 is adopted, in the process that the turntable 7 drives the mounting seat 14 and the disk 16 to rotate, the slider 8 inside the turntable 7 is utilized to drive the connecting rod 11 to move outwards under the action of centrifugal force, the mounting seat 14 and the disk 16 can be lifted upwards, the response time between the disk 16 and the magnetic head 17 is further shortened, and the speed of a hard disk is improved.
When the hard disk drive is used, when the hard disk drive needs to be driven, the rotating shaft 3 of the motor drives the rotating disk 7 to rotate, in the rotating process of the rotating disk 7, the transmission rod 15 in transmission connection between the connecting rod 11 at the top of the rotating disk 7 and the mounting seat 14 can drive the mounting seat 14 and the disk 16 to rotate, so as to drive the hard disk, while the rotating disk 7 rotates, the sliding block 8 in the rotating disk 7 can pull the spring 9 to move outwards under the action of centrifugal force, so as to drive the connecting rod 11 at the top end to move outwards, in the moving process of the connecting rod 11 to move outwards, the mounting seat 14 and the disk 16 can be lifted upwards under the action of the transmission rod 15, so that the disk 16 is in contact with the magnetic head 17, so that the magnetic head 17 floats above the disk 16, so as to realize the access to data, and in the rotating process of driving the disk 16, the rotating shaft 3 can not be in direct contact with the mounting base 14 and the disk 16, the lifting rod 13 and the sleeve 12 can be kept relatively still, meanwhile, hydraulic oil is utilized to reduce heat conduction between the sleeve 12 and the lifting rod 13, heat generated by the rotating shaft 3 can not be conducted to the mounting base 14 and the disk 16, in the process that the rotating disk 7 drives the fan blades 10 to rotate, air can be blown downwards above the motor shell 2, the ventilating slot 5 can generate downward air flow, the heat generated during rotation of the motor can be better taken away by matching with the design of the heat dissipation slot 4 in the motor shell 2, and heat dissipation of the hard disk drive motor is improved.
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 (1)
1. The utility model provides a magnetic disk drive device in hard disk based on rotatory centrifugal force, includes casing (1), its characterized in that: the motor casing is characterized in that a motor casing (2) is fixedly mounted at the bottom inside the casing (1), a rotating shaft (3) is rotatably connected inside the motor casing (2), heat radiating grooves (4) are formed inside the motor casing (2), ventilating grooves (5) are formed between the heat radiating grooves (4) inside the motor casing (2), air outlets (6) are communicated with the bottom of the ventilating grooves (5), a rotary table (7) is fixedly mounted at the top end of the rotating shaft (3), a sliding block (8) is slidably connected inside the rotary table (7), a spring (9) is fixedly connected to one side, close to the center of the rotary table (7), of the sliding block (8), fan blades (10) are fixedly mounted at the bottom end of the sliding block (8), a connecting rod (11) is fixedly mounted at the top end of the sliding block (8), a sleeve (12) is fixedly mounted at the top end of the center of the rotary table (7), and a lifting rod (13) is slidably connected to the top of the sleeve (12), a mounting seat (14) is fixedly mounted at the top end of the lifting rod (13), a transmission rod (15) is connected between the mounting seat (14) and the connecting rod (11) in a transmission manner, a disc (16) is fixedly mounted on the periphery of the mounting seat (14), and a magnetic head (17) is arranged at the top of the disc (16);
the heat dissipation grooves (4) are communicated with a cavity where the rotating shaft (3) is located, and the heat dissipation grooves (4) and the ventilation grooves (5) are mutually crossed and uniformly distributed in the motor shell (2);
the air outlet (6) penetrates through the bottom plate of the shell (1), the bottom ends of the ventilation grooves (5) are communicated with the air outlet (6), and the ventilation grooves (5) extend upwards to the top end of the motor shell (2);
the number of the sliding blocks (8) is eight, the sliding blocks are uniformly distributed in the turntable (7), and the sliding blocks are elastically limited and slidably connected in the turntable (7) through springs (9);
the fan blades (10) are vertically distributed downwards at the bottom end of the rotary table (7), and the direction of the fan blades is aligned with the axial lead of the rotary table (7);
the diameter of the bottom end of the lifting rod (13) is increased, the lifting rod is connected to the inside of the sleeve (12) in a limiting sliding mode, and hydraulic oil is filled in the sleeve (12);
two ends of the transmission rod (15) are respectively rotatably connected with the bottom end of the mounting seat (14) and the top end of the connecting rod (11), and the top end of the transmission rod (15) inclines outwards;
when a hard disk is required to be driven, a rotating shaft (3) of a motor is used for driving a turntable (7) to rotate, in the rotating process of the turntable (7), a transmission rod (15) in transmission connection between a connecting rod (11) at the top of the turntable (7) and an installation seat (14) is used for driving the installation seat (14) and a disk (16) to rotate, so that the hard disk is driven, in the rotating process of the turntable (7), a sliding block (8) in the turntable (7) can stretch a spring (9) to move outwards under the action of centrifugal force, so that the connecting rod (11) at the top end is driven to move outwards, in the moving process of the connecting rod (11) to move outwards, the installation seat (14) and the disk (16) can be lifted upwards through the action of the transmission rod (15), so that the disk (16) is contacted with a magnetic head (17), and the magnetic head (17) floats above the disk (16), the data access is realized, in the process of driving a disk (16) to rotate, a rotating shaft (3) cannot be in direct contact with an installation seat (14) and the disk (16), a lifting rod (13) and a sleeve (12) can be kept relatively static, meanwhile, hydraulic oil is utilized to reduce heat conduction between the sleeve (12) and the lifting rod (13), so that heat generated by the rotating shaft (3) cannot be conducted to the installation seat (14) and the disk (16), and in the process of driving fan blades (10) to rotate by a turntable (7), air can be blown downwards from the upper part of a motor shell (2), so that a ventilation groove (5) generates downward air flow, and the heat generated in the rotation of the motor can be better taken away by matching with the design of a heat dissipation groove (4) in the motor shell (2), so that the heat dissipation of a hard disk drive motor is improved.
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| CN202010306687.7A CN111489767B (en) | 2020-04-17 | 2020-04-17 | Hard disk inner magnetic disk driving device based on rotating centrifugal force |
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| CN202010306687.7A CN111489767B (en) | 2020-04-17 | 2020-04-17 | Hard disk inner magnetic disk driving device based on rotating centrifugal force |
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| CN111489767B true CN111489767B (en) | 2021-08-17 |
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| CN112543975A (en) * | 2020-11-17 | 2021-03-23 | 杭州育锦科技有限公司 | Energy-saving and environment-friendly hard disk reinforcing device capable of reducing speed and preventing vibration friction damage |
| CN112697642A (en) * | 2020-12-05 | 2021-04-23 | 合肥市公路桥梁工程有限责任公司 | Highway construction slurry proportion detection device and method convenient to adjust |
| CN113436651B (en) * | 2021-07-08 | 2022-12-30 | 深圳市世野科技有限公司 | Safety protection device for disk reading equipment |
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| CN111489767A (en) | 2020-08-04 |
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