CN201274170Y - Fixing construction for hard disc motor and disc, hard disc thereof - Google Patents
Fixing construction for hard disc motor and disc, hard disc thereof Download PDFInfo
- Publication number
- CN201274170Y CN201274170Y CNU2008202124437U CN200820212443U CN201274170Y CN 201274170 Y CN201274170 Y CN 201274170Y CN U2008202124437 U CNU2008202124437 U CN U2008202124437U CN 200820212443 U CN200820212443 U CN 200820212443U CN 201274170 Y CN201274170 Y CN 201274170Y
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- CN
- China
- Prior art keywords
- motor
- disc
- cylindrical motor
- briquetting
- pressing block
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a hard disk motor and diskette fixing structure which comprises a cylindrical motor, a diskette with the central hole sleeved with the cylindrical motor, and a pressing block used to press the diskette on the motor; the fixing structure is characterized in that the pressing block is circular and sleeved on he cylindrical motor; the pressing block and the cylindrical motor are in interference fit. The outer edge of the end face of the cylindrical motor which is sleeved on one end of the pressing block is provided with a chamfer angle. The fixing structure adopts the circular pressing block; the pressing block and the cylindrical motor are in interference fit, so as to press the diskette on the motor; therefore, the fixing structure has simple structure, saves parts and is applicable to automatic flow operation; the assembly precision of the circular pressing block and the central shaft of the cylindrical motor is high, which improves the balancing performance of the pressing block to the rotating central shaft, and reduces the vibration of hard disks.
Description
Technical field
The utility model relates to a kind of hard disk structure.
Background technology
As depicted in figs. 1 and 2, in the structure of hard disk, disc 2 and disc 4 need be fixed on the cylindrical motor 7.Existing technology is to use and is threaded, with screw 6 briquetting 5 is fastened on the cylindrical motor 7, and briquetting 5 fastening discs 4, thus disc 4 and disc 2 are fixed on the motor.The shortcoming of this structure is: use screw that briquetting is locked on the motor, structure is comparatively complicated, will use screw during installation, increases part, the threaded connection hole of also fragile screw and motor in dismounting.And, because that briquetting needed with motor in when assembling is strict concentric, have deviation to be easy to generate vibration slightly, and the briquetting of this structure when assembling and motor off-centre appears easily, strict to briquetting production technology and assembly technology.
Summary of the invention
The technical problems to be solved in the utility model overcomes above defective exactly, proposes the fixed sturcture of a kind of hard disk motor and disc, and it is simple in structure, is easy to install, and briquetting and motor assembling are accurately vibrated thereby can reduce disc.
Technical matters of the present utility model is solved by the following technical programs.
The fixed sturcture of this hard disk motor and disc, comprise that cylindrical motor, center pit are set in disc on the cylindrical motor, disc is pressed on briquetting on the motor, are characterized in that described briquetting is an annular, and be set on the cylindrical motor described briquetting and cylindrical motor interference fit.
Described disc comprises two at least, per two discs axially between be provided with the annular cushion block that is set on the motor.
Described cylindrical motor is provided with chamfering in the end face outer rim of an end of sheathed briquetting.
This hard disk that the utility model proposes comprises base; Be installed in head stack, magnetic patch assembly and cylindrical motor in the base; Center pit is set in the disc on the cylindrical motor; Disc is pressed on briquetting on the motor; Be characterized in that described briquetting is an annular, and be set on the cylindrical motor, described briquetting and cylindrical motor interference fit.
Described disc comprises two at least, per two discs axially between be provided with the annular cushion block that is set on the motor.
Described cylindrical motor is provided with chamfering in the end face outer rim of an end of sheathed briquetting.
Be compared with the prior art, the beneficial effect that the utlity model has has: adopt the annular briquetting, briquetting and cylindrical motor interference fit, thereby disc is pressed on the motor, has omitted the screw thread pore structure, simple in structure, easy to assembly, adapt to the robotization line production; The annular briquetting cooperates easily with the central shaft of cylindrical motor, and the assembly precision height has improved the balance quality of briquetting to rotary middle spindle, reduces the hard disk vibration.
Description of drawings
Fig. 1 is existing hard disk structure explosive view;
Fig. 2 is the fixed structure chart of existing disc and motor;
Fig. 3 is the structure explosive view of the utility model embodiment;
Fig. 4 is the disc of the utility model embodiment and the fixed structure chart of motor.
Embodiment
A kind of hard disk as shown in Figure 3 and Fig. 4, comprises base 1, head stack, magnetic patch assembly, cylindrical motor 7, first disc 4, second disc 2, cushion block 3, briquetting 5.
Head stack (not indicating), magnetic patch assembly (not indicating) and cylindrical motor 7 are installed on the base.The center pit of first disc 4, second disc 2 is enclosed within the external part of cylindrical motor 7, and motor 7 external parts are provided with installation step, determine the axial location of second disc 2.First disc 4, second disc 2 axially between be provided with annular cushion block 3, annular cushion block 3 is enclosed within on the cylindrical motor 7, determines the axially spaced-apart of 2 of first disc 4 and second discs.
Briquetting 5 is an annular, is set in the axle head of cylindrical motor 7, and compresses first disc 4.The inner ring diameter of briquetting 5 is less than the cylinder external diameter of cylindrical motor 7, and promptly briquetting 5 is an interference fit with cylindrical motor 7, and when work, briquetting 5 is fastened on the cylindrical motor 7, and compresses two discs like this.
During assembling, need add hot wafering 5, allow it expand, make the race diameter of the inner ring diameter of briquetting 5, then briquetting 5 is inserted in motor 7 outer rings and push down disc greater than cylindrical motor 7.After treating that briquetting 5 cooling is shunk, its inner ring diameter is less than the motor race diameter, thus banding motor and compress disc.For ease of briquetting 5 being installed and being used the specific purpose tool dismounting, be provided with chamfering at the end face of the external part of cylindrical motor 7.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. the fixed sturcture of hard disk motor and disc, comprise that cylindrical motor, center pit are set in disc on the cylindrical motor, disc is pressed on briquetting on the motor, it is characterized in that: described briquetting is an annular, and be set on the cylindrical motor described briquetting and cylindrical motor interference fit.
2. the fixed sturcture of hard disk motor as claimed in claim 1 and disc is characterized in that: described disc comprises two at least, per two discs axially between be provided with the annular cushion block that is set on the motor.
3. the fixed sturcture of hard disk motor as claimed in claim 1 and disc is characterized in that: described cylindrical motor is provided with chamfering in the end face outer rim of an end of sheathed briquetting.
4. a hard disk comprises base; Be installed in head stack, magnetic patch assembly and cylindrical motor in the base; Center pit is set in the disc on the cylindrical motor; Disc is pressed on briquetting on the motor; It is characterized in that: described briquetting is an annular, and is set on the cylindrical motor, described briquetting and cylindrical motor interference fit.
5. hard disk as claimed in claim 4 is characterized in that: described disc comprises two at least, per two discs axially between be provided with the annular cushion block that is set on the motor.
6. hard disk as claimed in claim 4 is characterized in that: described cylindrical motor is provided with chamfering in the end face outer rim of an end of sheathed briquetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202124437U CN201274170Y (en) | 2008-10-14 | 2008-10-14 | Fixing construction for hard disc motor and disc, hard disc thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202124437U CN201274170Y (en) | 2008-10-14 | 2008-10-14 | Fixing construction for hard disc motor and disc, hard disc thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274170Y true CN201274170Y (en) | 2009-07-15 |
Family
ID=40884513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202124437U Expired - Fee Related CN201274170Y (en) | 2008-10-14 | 2008-10-14 | Fixing construction for hard disc motor and disc, hard disc thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201274170Y (en) |
-
2008
- 2008-10-14 CN CNU2008202124437U patent/CN201274170Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20141014 |
|
| EXPY | Termination of patent right or utility model |