CN1421620A - Shrink fit fixing method - Google Patents
Shrink fit fixing method Download PDFInfo
- Publication number
- CN1421620A CN1421620A CN 02154320 CN02154320A CN1421620A CN 1421620 A CN1421620 A CN 1421620A CN 02154320 CN02154320 CN 02154320 CN 02154320 A CN02154320 A CN 02154320A CN 1421620 A CN1421620 A CN 1421620A
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- China
- Prior art keywords
- interference fit
- fixation method
- axis
- shaped component
- fixed component
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
- B23P11/027—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold for mounting tools in tool holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invnetion easily and accurately carries out shrink fit and fixing of a shaft like member 4 and a fixed member 7 by a simple procedure. In a shrink fit process of the shaft like member 4 and an attaching hole 7c of the fixed member 7, by precedently applying a solid lubricant to at least one of a shrink fit face of the shaft like member 4 or a shrink fit face of the attaching hole 7c of the fixed member 7, favorable mutual sliding is provided between the shrink fit face of a shaft like member 4 side and the shrink fit face of an attaching hole 7c side of the fixed member 7 by a lubricating function of the solid lubricant, and conventional transfer or the like due to galling is favorably prevented.
Description
Technical field
The present invention relates to have the axis-shaped component of interference fit tolerance of regulation and the interference fit fixation method that mounting hole is forced intercalation.
Background technique
In general employed diversified device, adopt widely for forcing intercalation in perforation is formed on the mounting hole of fixed component side, with described axis-shaped component, to be fixed on the interference fit fixation method of fixed component side under the suitable interference fit tolerance axis-shaped component of axle etc.For example, be used for the motor of rotating driving device, in the mounting hole that on the rotating member that the light component output by aluminium etc. constitutes, forms, the output shaft utilization of the motor that will be made of the rigid member of stainless steel material etc. is pressed into or the interference fit operation of hot jacket etc. is carried out intercalation and fixed, and described two members can be fixed between mutually securely.
But, described being pressed into or hot jacket, owing to carry out in that the interference fit face of two members is made under the state that crimping is slided on one side forcibly on one side between mutually, so present not good slip state because of the degree of interference fit tolerance and the combination of material etc. make both sides' interference fit face of force inserting when logical between mutually sometimes, produce sticking moving (Japanese: the moving) phenomenon that causes because of biting etc., often hinder the fixed precision in the interference fit operation.For example, the installation squareness that exists the described relatively fixed component of axis-shaped component produces deviation, or because the situation that the temperature variation after the assembling etc. such as change at the fixed precision of described installation squareness etc.
The sticking phenomenon of moving of material in such interference fit operation, the occasion of motor as described often produces when the soft material combination of hard material that makes stainless steel material etc. and aluminium etc. especially significantly.
Therefore, the objective of the invention is to, provide and utilize simple and cheap step and can be easily and carry out the interference fit fixation method of the interference fit operation of axis-shaped component and fixed component accurately.
The summary of invention
In order to solve described problem, in interference fit fixation method of the present invention, when carrying out the interference fit operation, at least one side's side of the interference fit face of the mounting hole side of the interference fit face of axis-shaped component side and fixed component, applying solid oiling agent in advance.
Employing has the interference fit fixation method of this spline structure, when carrying out the interference fit operation, the interference fit face of the interference fit face of axis-shaped component side and the mounting hole side of fixed component, because the lubrication of solid lubricant and sliding well mutually, just can prevent well because of such sticking phenomenon of moving that causes of biting in the past.
In addition, adopt interference fit fixation method of the present invention, because described interference fit operation is to be pressed into or the hot jacket operation, these are pressed into or each operation of hot jacket, can not produce stickingly phenomenon such as to move and can be carried out well.
In addition, adopt interference fit fixation method of the present invention, described solid lubricant, the body of powder of reason graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE) constitutes, so utilize these each solid lubricants just can prevent phenomenons such as sticking in the interference fit operation moves well.
In addition, adopt interference fit fixation method of the present invention, described axis-shaped component is the output shaft of motor, and, fixed component is to utilize the output shaft of described motor to be rotated the rotary hub of driving, owing on described wheel hub, maintain the deflection polygonal mirror that the deflection scanning that carries out optical information is used, thus in the polygonal mirror driving motor of light-deflection apparatus spool installation can carry out well.
On the other hand, adopt interference fit fixation method of the present invention, owing to use in stainless steel material, Cuprum alloy, the aluminum alloy any at the member of side's side of described axis-shaped component or fixed component, and, the opposing party's side member uses stainless steel material, so sticking in the interference fit operation can prevent from well to use these each members the time such as moves at phenomenon.
In addition, adopt interference fit fixation method of the present invention, as described interference fit operation, when adopting the hot jacket operation, owing to adopt graphite or molybdenum disulfide as described solid lubricant, so the temperature environment that can be produced when carrying out the hot jacket operation is corresponding, obtain the good lubrication that produces by graphite or molybdenum disulfide.
The simple declaration of accompanying drawing
Fig. 1 is the vertical profile explanatory drawing of the polygonal mirror driving motor configuration example of expression light-deflection apparatus of the present invention.
The working of an invention form
Below, with reference to the accompanying drawings example of the present invention is at length described.Before this, earlier the structure example of using the polygonal mirror drive unit in the light-deflection apparatus of the present invention is described.
As shown in Figure 1, on the substantial middle part of the motor base plate 1 of dual-purpose printed base plate, upright establish to be equipped with make general hollow bearing bracket 2 cylindraceous, at the private side of this bearing bracket 2 sintered-metal bearing 3 is installed.And, utilizing this sintered-metal bearing 3, the axle 4 that is formed by stainless steel material is being supported in rotation freely.
On the outer circumferential side wall of described bearing bracket 2, setting-in the stator core 5 that is made of duplexers such as electromagnetic steel plates, relatively the prominent utmost point of each of this stator core 5 portion stator coil 6 of reeling respectively.
In addition, from the output of the outstanding described axle 4 of described sintered-metal bearing 3 side direction diagram upper side, the rotary hub 7 that is formed by aluminum alloy is by being pressed into or the interference fit operation of hot jacket etc. is fixed on described 4.For this point, make as described later as major component of the present invention, on described axle 4,, be installed with and form the roughly rotor case 8 of dish type by described rotary hub 7.
On interior all sides of the wall 8a of the outer circumferential side of described rotor case 8, the rotor magnet 9 of ring-type is installed.The inner peripheral surface of this rotor magnet 9, the exterior edge face of the prominent utmost point of each of described relatively stator core 5 portion is configured at radial direction relatively approaching.
On the other hand, be set as at the core of described rotary hub 7 on the outer circumferential face of convex pillar part 7a of heavy wall shape, the deflection polygonal mirror 11 that the deflection scanning that carries out optical information is used is installed.The diagram lower end surface of this polygonal mirror, with convex pillar part 7a butt above the mirror mounting 7b of portion that radial direction foreign side forms side-prominently, utilize the fastening a plurality of pushing springs 12 of screw to fixing from the diagram upper side of convex pillar part 7a from described rotary hub 7 with axially pushing.
Here, such as described, described rotary hub 7 and axle 4 are fixed by the interference fit operation.That is to say, on the core of described rotary hub 7, connect in the mounting hole 7c that forms, with described axle 4 by being pressed into or the interference fit operation of hot jacket etc. is inserted logical fixing forcibly, but at this two member 7, during 4 interference fit operations between carrying out mutually, the interference fit face of the inner peripheral surface side in interference fit face on the outer circumferential face side of described axle 4 and mounting hole 7c at described rotary hub 7, slide because crimping is mutual on one side forcibly on one side under suitable interference fit tolerance mutually, if do not adopt certain countermeasure, might produce illustrated in the prior art produce sticking phenomenon such as move because of biting.
Therefore, in this example, because sliding over each other under such interference fit tolerance can be carried out well, in stage before carrying out the interference fit operation, in advance at least one side's side of the interference fit face of the inner peripheral surface side in the mounting hole 7c of the interference fit face of the outer circumferential face side of described axle 4 and rotary hub 7, applying solid oiling agent in advance.As solid lubricant at this moment, for example can use the body of powder of graphite or molybdenum disulfide or polytetrafluoroethylene (PTFE) etc., this body of powder utilizes methods such as spraying or hairbrush coating suitably to be coated with.
Adopt the interference fit fixation method in this such example, when carrying out the interference fit operation, the interference fit face of the interference fit face of axle 4 sides and the mounting hole 7c side of rotary hub 7, because of the lubrication of described solid lubricant is slided mutually well, can prevent well in the past because of biting phenomenons such as cause sticking moves, thereby can carry out the installation of the axle 4 in the polygonal mirror driving motor well.
In addition, in the interference fit fixation method of this example, the interference fit operation, owing to be to be pressed into or hot jacket, these are pressed into or each operation of hot jacket, can not produce sticking ground such as move can carry out well.
In addition, adopt the interference fit fixation method of this example, because solid lubricant is made of the body of powder of graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE), utilizes these each solid lubricants, just can prevent phenomenons such as sticking in described 4 interference fit operation moves well.
In addition, in the interference fit fixation method of described example, axle 4 as axis-shaped component is used stainless steel material, rotary hub 7 as fixed component is used lead alloys, in such hard material and soft material are made up, especially can obtain good result, even and adopt other materials of Cuprum alloy or aluminum alloy etc. as described axis-shaped component, and, when adopting other material of stainless steel material, also can obtain roughly same action effect as fixed component.
Especially, when adopting the hot jacket operation, corresponding with the temperature environment that when carrying out the hot jacket operation, produces as the interference fit operation if adopt graphite or molybdenum disulfide in advance, can obtain the good lubrication that produces by graphite or molybdenum disulfide.
More than, according to example specific description has been carried out in the invention that the present inventor made, but the invention is not restricted to described example, in the scope that does not break away from its aim, can carry out various distortion certainly.
For example, described each example applies the present invention to polygonal mirror driving motor and other motor, even for the interference fit operation of axis-shaped component in other varied devices and fixed component, can use the present invention too.
As mentioned above, shrink fit fixing method of the present invention is carrying out axis-shaped component and fixed component peace During the interference fit operation in dress hole, in the mistake of the installing hole of the interference fit face of axis-shaped component and fixed component Be full of at least one party's side in the mating surface, by applying solid lubricant in advance, utilize the profit of kollag Sliding effect makes the interference fit face of the interference fit face of described axis-shaped component side and fixed component installing hole side mutual Slide well mutually, just can prevent well in the past such because biting the phenomenons such as cause sticking moves. Therefore, Can utilize simple order, easily and the interference fit of carrying out accurately axis-shaped component and fixed component admittedly Fixed, can improve the fixing reliability of interference fit.
In addition, shrink fit fixing method of the present invention is because described interference fit operation is to be pressed into or heat Cover, these are pressed into or each operation of hot jacket, can not produce stickingly to carry out well with moving, are being pressed into or hot jacket Each worker give, can obtain well described effect.
In addition, shrink fit fixing method of the present invention is because described kollag is by graphite, two sulphur The body of powder of changing molybdenum, polytetrafluoroethylene (PTFE) (PTFE) consists of, so utilize these each kollag to prevent End the phenomenons such as sticking in the interference fit operation moves, can obtain well described effect.
In addition, shrink fit fixing method of the present invention, described axis-shaped component are the output shafts of motor, And fixed component is to utilize the output shaft of described motor to be rotated the rotary hub of driving, in institute State on the rotary hub, owing to keeping carrying out the deflection polygonal mirror that the deflection scanning of optical information is used, so can be good Carry out well the installation of the axle in the polygonal mirror drive motor of light-deflection apparatus, at this light-deflection apparatus The polygonal mirror drive motor in, can obtain well described effect.
In addition, shrink fit fixing method of the present invention is because for described axis-shaped component or fixed component The member of side's side, use in stainless steel material, copper alloy or the aluminium alloy any, and, For the member of the opposing party's side, use stainless steel material, so in the time of preventing from well using these each members The interference fit operation in the sticking phenomenon such as move, in these members, can obtain well described effect.
In addition, shrink fit fixing method of the present invention as described interference fit operation, is adopting heat Cover adopts graphite or molybdenum bisuphide as kollag during operation, and produces when carrying out the hot jacket operation The temperature environment correspondence owing to can obtain good lubrication by the generation of graphite or molybdenum bisuphide, especially It can obtain described effect reliably in the hot jacket operation.
Claims (6)
1. interference fit fixation method, by carrying out that axis-shaped component is forced to be intercalated in interference fit operation in the mounting hole of fixed component side of the interference fit tolerance with regulation, fix and described fixed component and axis-shaped component are carried out interference fit, it is characterized in that
When carrying out described interference fit operation, at least one side's side of the mounting hole side of the interference fit face of described axis-shaped component side and described fixed component, applying solid oiling agent in advance.
2. interference fit fixation method as claimed in claim 1 is characterized in that, described interference fit operation is to be pressed into or the hot jacket operation.
3. interference fit fixation method as claimed in claim 1 is characterized in that, described solid lubricant is made of the body of powder of graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE).
4. interference fit fixation method as claimed in claim 1 is characterized in that,
Described axis-shaped component is the output shaft of motor, and described fixed component is to utilize the output shaft of described motor to be rotated the rotary hub of driving,
On described rotary hub, keeping carrying out the deflection polygonal mirror that the deflection scanning of optical information is used.
5. interference fit fixation method as claimed in claim 1 is characterized in that,
For the member of side's side of described axis-shaped component or fixed component, use in stainless steel material, Cuprum alloy, the aluminum alloy any,
And,, use stainless steel material for the member of the opposing party's side.
6. interference fit fixation method as claimed in claim 1 is characterized in that, when adopting the hot jacket operation as described interference fit operation, adopts graphite or molybdenum disulfide as described solid lubricant.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001364216 | 2001-11-29 | ||
| JP2001364216A JP2003165032A (en) | 2001-11-29 | 2001-11-29 | Fixing method by shrink fit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1421620A true CN1421620A (en) | 2003-06-04 |
Family
ID=19174443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02154320 Pending CN1421620A (en) | 2001-11-29 | 2002-11-29 | Shrink fit fixing method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003165032A (en) |
| CN (1) | CN1421620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196750A (en) * | 2014-09-01 | 2014-12-10 | 青蛙泵业有限公司 | Deep-well pump rotor long shaft and machining process thereof |
| CN114603306A (en) * | 2022-03-31 | 2022-06-10 | 西安航空制动科技有限公司 | Aircraft wheel bearing outer ring assembling method and hub heating device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4577195B2 (en) * | 2005-11-29 | 2010-11-10 | 株式会社デンソー | magnetic switch |
| DE102011082611A1 (en) * | 2011-09-13 | 2013-03-14 | Franz Haimer Maschinenbau Kg | Induction coil unit |
-
2001
- 2001-11-29 JP JP2001364216A patent/JP2003165032A/en not_active Withdrawn
-
2002
- 2002-11-29 CN CN 02154320 patent/CN1421620A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196750A (en) * | 2014-09-01 | 2014-12-10 | 青蛙泵业有限公司 | Deep-well pump rotor long shaft and machining process thereof |
| CN114603306A (en) * | 2022-03-31 | 2022-06-10 | 西安航空制动科技有限公司 | Aircraft wheel bearing outer ring assembling method and hub heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003165032A (en) | 2003-06-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |