CN103256376B - bearing fixing structure - Google Patents
bearing fixing structure Download PDFInfo
- Publication number
- CN103256376B CN103256376B CN201310035145.0A CN201310035145A CN103256376B CN 103256376 B CN103256376 B CN 103256376B CN 201310035145 A CN201310035145 A CN 201310035145A CN 103256376 B CN103256376 B CN 103256376B
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- CN
- China
- Prior art keywords
- plane
- outer ring
- bolt
- fixed part
- rotation
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a kind of bearing fixing structure, utilize the fixed part that is fixed on housing by a bolt, can not make bolt occur lax, can stop outer ring rotation. Bearing fixing structure possesses the 1st plane (3) on outer ring (2), has the fixed part (5) of flexure plane (9) and the bolt (7) for fixing fixed part (5). Flexure plane (9) is according to direction of rotation and different positions contacts and stop the rotation of outer ring (2) with the 1st plane (3). The direction that now imposes on the contact load of fixed part (5) becomes by the direction of the central axis of bolt (7) or fixed part (5) is applied to the direction of the torque of the fastening direction of bolt (7).
Description
Technical field
The present invention relates to the bearing fixing structure of the outer ring rotation for stoping bearing.
Background technology
In the past, be fixed in housing for the outer ring of the bearing that supports the rotating shaft in speed changer by following manner: profitPush described outer ring by push part, and utilize bolt this push part to be anchored on to the housing of speed changer. For example, existIn speed changer described in patent documentation 1, utilize the end face of push part pushing outer ring, and utilize two bolts that this is pushed awayPressure part is fixed on housing
On the other hand, in patent documentation 2, describe the bearing that has such speed changer to use: bearing is being fixed on to speed changeWhen the housing of device, make the otch and the protrusions snap that is arranged at housing of the outer ring that is arranged at bearing. Like this, can preventThe rotation of the rotating shaft that support along with bearing outer ring and rotating.
Patent documentation 1: TOHKEMY 2010-96337 communique
Patent documentation 2: TOHKEMY 2005-133869 communique
, according to the speed changer of patent documentation 1, in the case of being fixed wtih the fastening force of bolt of outer ring dies down,There is following situation according to the environment for use of bearing: outer ring rotates in housing, thereby make housing wearing and tearing. If outer ringRotation, the part that is supporting outer ring is worn and torn, and there is skew or vibration in rotating shaft, thereby likely rotates on axleThe unfavorable condition such as gear breakage.
On the other hand, according to the bearing of patent documentation 2, although the situation that does not exist outer ring to rotate, owing to not havingHave and take the countermeasure that stops outer ring to be moved vertically, therefore outer ring likely departs from from housing. Therefore, can consider byCombined outer ring rotation and the disengaging both of these case of preventing of technology of patent documentation 1 and patent documentation 2. , asFruit utilizes two bolts that the push part of outer ring is fixed on to housing as patent documentation 1, need to be in housing reallyProtect corresponding space.
Therefore, it is also conceivable that and utilize a bolt that fixed part is fixed on to housing, and utilize this fixed part to stopThe rotation of outer ring, and then prevent the disengaging of bearing. , utilizing bolt that fixed part is anchored on to housingIn situation, cause the easily lax such problem of bolt thereby exist fixed part easily to rotate.
Summary of the invention
The object of the invention is to, in view of the problem of described prior art, provide a kind of bearing fixing structure, its utilizationBe fixed on the fixed part of housing by a bolt, can not make bolt occur lax, can stop outer ring rotation.
Bearing fixing structure of the present invention is characterised in that, described bearing fixing structure possesses: the 1st plane, its settingIn the outer ring of bearing, described bearing radially supports rotating shaft in housing, described the 1st plane and thisThe axis of bearing is parallel and towards radial outside; Fixed part, it has the flexure plane of facing with described the 1st plane;And bolt, it screws togather along the direction parallel with described axis, thus described fixed part is fixed on described housing, instituteState flexure plane bending and opposed with described the 1st plane in the mode that is centered close to described bolt side of the curvature of each several part,
Described flexure plane is configured to: the in the situation that of wanting to a direction or other direction rotation in described outer ring, described curvedCurved surface is in the different parts corresponding with this direction of rotation and described the 1st plane contact and stop this rotation, no matter describedFlexure plane which position and described the 1st plane contact in the situation that, imposes on the contact load of described fixed partDirection all becomes by the direction of the central axis of described bolt or this fixed part is applied to the fastening direction of this boltThe direction of torque.
According to the present invention, the impact of the rotation due to direction of axial rotary or other direction make outer ring want toIn the situation of direction or other direction rotation, this rotation fixed part stops. Now, put on fixed partThe direction of contact load be the direction of the central axis by bolt or the torque that applies the fastening direction of boltDirection. Therefore, can utilize fixed part to stop reliably the rotation of outer ring, and can prevent that bolt is lax.
In the present invention, also can possess: the 2nd plane, it is arranged at described outer ring, and hangs down with described the 1st planeDirectly adjacency; With the 3rd plane, it is arranged at described fixed part, with described flexure plane adjacency, and with the described the 2ndPlane is faced. Thus, can utilize the 3rd plane of fixed part to stop outer ring vertically to fixed part side shifting.
In the present invention, can also be that described outer ring is embedded in the recess arranging at described housing, thereby is fixed inThis housing, described the 3rd this outer ring of plane limit departs from from this recess.
In addition, in the present invention, also can rotation stopping parts be set at described housing, described rotation stopping parts are usedIn stoping described fixed part to exceed predetermined scope rotation along the fastening direction of described bolt. Thus, can be by rotationStop parts for the location in the time utilizing bolt that fixed part is mounted to housing.
Brief description of the drawings
Fig. 1 is the cutaway view that the bearing fixing structure of an embodiment of the invention is shown.
Fig. 2 is illustrated in the key diagram that fixed part in the bearing fixing structure of Fig. 1 stops the situation of outer ring rotation.
Fig. 3 is illustrated in the explanation that fixed part in the bearing fixing structure of Fig. 1 stops another situation of outer ring rotationFigure.
Fig. 4 is illustrated in the bearing fixing structure of Fig. 1 to be fixed portion with the attitude of flexure plane and the 1st plane contactThe key diagram of the situation of the installation of part.
Fig. 5 is illustrated in the bearing fixing structure of Fig. 1, to adopt rotation stopping parts to position while install solidThe key diagram of the situation of limiting-members.
Label declaration
1: bearing; 2: outer ring; 3: the 1 planes; 4: the 2 planes; 5: fixed part; 6: housing; 7:Bolt; 8: rotating shaft; 9: flexure plane; 10: the 3 planes; 13: recess; 14: rotation stopping parts.
Detailed description of the invention
Below, adopt accompanying drawing to describe embodiments of the present invention. As shown in Figure 1, the bearing of embodiment is solidFixed structure possesses: the 1st plane 3 and the 2nd plane 4, and they are arranged at the outer ring 2 of bearing 1; Fixed part 5,It is for stoping rotation and the disengaging of outer ring 2; And bolt 7, it is fixed on fixed part 5 housing of speed changer6。
Bearing 1 is the needle bearing at a distolateral radially supporting rotating shaft 8 of rotating shaft 8, and this rotating shaft 8 is at shellThe interior transferring power of body 6. The axis of the 1st plane 3 and bearing 1 is parallel and towards radial outside. The 2nd plane 4 andVertically adjacency of 1 plane 3, and distolateral towards another of rotating shaft 8.
Fixed part 5 possesses: flexure plane 9, and itself and the 1st plane 3 are faced; With the 3rd plane 10, itself and flexure plane9 adjacency vertically, and face with the 2nd plane 4. Bolt 7 screws togather along the direction parallel with the axis of bearing 1,Thereby fixed part 5 is fixed on to housing 6. Flexure plane 9 is positioned at the mode of bolt 7 sides with the center of curvature of each several partBending, and opposed with the 1st plane 3.
In addition, as described later, flexure plane 9 is configured to: want to the rotation of a direction or other direction in outer ring 2In situation, flexure plane 9 contacts with the 1st plane 3 at the different parts corresponding with this direction of rotation and stops this rotation,And the in the situation that of no matter contact with the 1st plane 3 at which position at flexure plane 9, the 1st plane 3 imposes on fixingThe direction of the contact load of parts 5 all becomes by the direction of the central axis of bolt 7 or to fixed part 5 and applies spiral shellThe direction of the torque of the fastening direction of bolt 7.
Bearing 1 possesses the roller 11 of needle-like and keeps the keeper 12 of roller 11. Roller 11 is in rotating shaft 8 endsPeriphery and outer ring 2 between roll.
Outer ring 2 is embedded in the recess 13 arranging at housing 6, thereby is fixed in housing 6. The 3rd plane 10 is limitOuter ring 2 processed departs from from recess 13. Be provided with rotation stopping parts 14(with reference to Fig. 2 at housing 6), this rotation stopping portionPart 14 is for stoping fixed part 5 to exceed predetermined scope rotation along the fastening direction (clockwise) of bolt 7.
Fig. 2 illustrates the feelings that fixed part 5 stops outer ring 2 to rotate under the state of observing from the head side of bolt 7Condition. Outer ring 2 is supported by the recess 13 of housing 6 as described above, but has the situation that creep (creep) occurs,Described creep refer to outer ring 2 be subject to rotating shaft 8 rotation impact and rotate. Because this rotation can produce and housing 6Recess 13 between friction and make recess 13 produce wearing and tearing, or the dust producing because of wearing and tearing becomes in bearing 1 differentNormal heating or the reason of vibration, therefore need to stop this rotation.
Figure 2 illustrates when this rotation in the time that the counter clockwise direction (Y1 direction) in the face of accompanying drawing is rotated is wanted in outer ring 2Situation about being prevented from. In this case, in the time that outer ring 2 rotates to position shown in Fig. 2, the 1st plane 3 is with curvedCurved surface 9 contacts at contact position P1, thereby has stoped further rotation.
Now, fixed part 5 is subject to the contact load of A direction via flexure plane 9. This direction is by bolt 7Central axis direction or fixed part 5 is applied to the side of the torque of the fastening direction (clockwise) of bolt 7To. Therefore,, due to contact load, can there is not fixed part 5 and cause bolt 7 lax around counterclockwise rotationSituation.
On the other hand, figure 3 illustrates this rotation in the time that (Y2 direction) rotation is wanted clockwise in outer ring 2Situation about being prevented from. In this case, in the time that outer ring 2 rotates to position shown in Fig. 3, the 1st plane 3 is with curvedCurved surface 9 contacts at contact position P2, thereby has stoped further rotation.
Now, fixed part 5 is subject to the contact load from the B direction of the 1st plane 3 via flexure plane 9. ShouldDirection is by the direction of the central axis of bolt 7 or fixed part 5 is applied to the turning of fastening direction of bolt 7The direction of square. Therefore, in this case, due to contact load, can there is not fixed part 5 around counterclockwise side yetCause to rotation the situation that bolt 7 is lax.
Like this, the in the situation that of no matter wanting to which direction rotation in outer ring 2, this rotation is all because outer ring 2 is with solidThe contact of limiting-members 5 and being prevented from, and, do not exist and make the contact load of the direction that bolt 7 is lax be applied to solidThe situation of limiting-members 5. But, the fixed part 5 when contact and the 1st plane 3 the two contact position according to outsideEnclose the direction of 2 wishs rotations and difference. That is, no matter in the situation that being which direction of rotation, above-mentioned contact positionP1 and P2 are in a side contrary with the direction of rotation (Y1 or Y2 direction) of the 1st plane 3 and flexure plane 9Position.
And, during the rotation of outer ring 2 is prevented from as described above, even if outer ring 2 is subject to towards from housing 6The power of the direction that departs from of recess 13, outer ring 2 towards the movement of this direction also can by with the 2nd plane 4 opposed3 planes 10 stop, and therefore do not have the possibility of outer ring 2 along the direction displacement departing from from recess 13.
In the time utilizing bolt 7 that fixed part 5 is installed on to housing 6, fixed part 5 due to the composition surface of bolt 7Between frictional force and around fastening direction (clockwise) rotation of bolt 7. Therefore, as shown in Figure 4, the 1st plane3 contact at the contact position P3 corresponding with the position of outer ring 2 now with flexure plane 9, enter with such postureThe installation of row fixed part 5.
Or, also can be in the time of fastening bolt 7 as shown in Figure 5, by make fixed part 5 rotations to rotationStop parts 14 contacts that fixed part 5 is positioned to installation site. In this case, the shape of flexure plane 9Set in the following manner with size: fixed part 5 is being installed under the state of this installation site, outside making to stopThe direction of contact load when circle 2 rotation becomes as described above by the direction of the central axis of bolt 7 or to solidLimiting-members 5 applies the direction of the torque of the fastening direction of bolt 7.
And the flexure plane 9 that produces the contact load of such direction for example can obtain in the following manner: curved surfaceThe center of curvature is from flexure plane 9 sides of Fig. 2 towards the central shaft of bolt 7 and be positioned at than the keep left position of side of this central shaftPut, form flexure plane 9 with such curved surface.
As described above, according to present embodiment, only by the 1st plane 3 and the 2nd plane 4 are set in outer ring 2And utilize bolt 7 that fixed part 5 is anchored on to housing 6, just can utilize the effect of the 1st plane 3 and flexure plane 9Stop outer ring 2 to a direction and other direction rotation.
In addition, now, because the direction of contact load producing is the direction of the central axis by bolt 7 or isFixed part 5 is applied to the direction of the torque of the fastening direction of bolt 7, therefore can prevent that bolt 7 from occurring lax.And, utilize the effect of the 2nd plane 4 and the 3rd plane 10, can prevent the recess 13 of outer ring 2 from housing 6Depart from.
And the present invention is not limited to above-mentioned embodiment. For example, applying bearing of the present invention can be also toolThere is the bearing of inner ring. In addition, bearing is not limited to needle bearing, can be also ball bearing etc. In addition, bolt also canTo be percussive bolt (knockbolt).
Claims (4)
1. a bearing fixing structure, is characterized in that,
Described bearing fixing structure possesses:
The 1st plane, it is arranged at the outer ring of bearing, and described bearing radially props up rotating shaft in housingHold, the axis of described the 1st plane and this bearing is parallel and towards radial outside;
Fixed part, it has the flexure plane of facing with described the 1st plane; And
Bolt, it screws togather along the direction parallel with described axis, thereby described fixed part is fixed on to described housing,
Described flexure plane is with the mode bending that is centered close to described bolt side of the curvature of each several part, and with the described the 1stPlane is opposed,
Described flexure plane is configured to: the in the situation that of wanting to a direction or other direction rotation in described outer ring, described curvedCurved surface is in the different parts corresponding with this direction of rotation and described the 1st plane contact and stop this rotation, no matter describedFlexure plane which position and described the 1st plane contact in the situation that, imposes on the contact load of described fixed partDirection all becomes the direction that this fixed part is applied to the torque of the fastening direction of this bolt.
2. bearing fixing structure according to claim 1, wherein,
Described bearing fixing structure possesses:
The 2nd plane, it is arranged at described outer ring, and with vertically adjacency of described the 1st plane; With
The 3rd plane, it is arranged at described fixed part, with described flexure plane adjacency, and in the face of described the 2nd plane.
3. bearing fixing structure according to claim 2, wherein,
Described outer ring is embedded in the recess arranging at described housing, thereby is fixed in this housing,
Described the 3rd this outer ring of plane limit departs from from this recess.
4. according to the bearing fixing structure described in any one in claim 1～3, wherein,
Be provided with rotation stopping parts at described housing, described rotation stopping parts are used for stoping described fixed part along instituteThe fastening direction of stating bolt exceedes predetermined scope rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-030442 | 2012-02-15 | ||
| JP2012030442A JP5877084B2 (en) | 2012-02-15 | 2012-02-15 | Bearing fixing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256376A CN103256376A (en) | 2013-08-21 |
| CN103256376B true CN103256376B (en) | 2016-05-11 |
Family
ID=48960495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310035145.0A Active CN103256376B (en) | 2012-02-15 | 2013-01-30 | bearing fixing structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5877084B2 (en) |
| CN (1) | CN103256376B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL406855A1 (en) * | 2014-01-15 | 2015-07-20 | General Electric Company | An unit immobilizing a bearing and method for assembling it |
| JP2017141852A (en) * | 2016-02-08 | 2017-08-17 | 本田技研工業株式会社 | Bearing structure |
| FR3054623B1 (en) * | 2016-07-28 | 2019-05-10 | Ntn-Snr Roulements | MOUNTING A BEARING BEARING IN A HOUSING OF A CARTER |
| US11105375B2 (en) * | 2020-01-09 | 2021-08-31 | Caterpillar Inc. | Retention system for bearing member |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201125966Y (en) * | 2007-12-12 | 2008-10-01 | 余战方 | External fixing type bearing and bearing support structure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05248444A (en) * | 1992-03-06 | 1993-09-24 | Mitsubishi Electric Corp | Bearing device |
| JPH0654912U (en) * | 1993-01-12 | 1994-07-26 | ダイハツ工業株式会社 | Speedometer sleeve mounting structure |
| US5482384A (en) * | 1995-04-18 | 1996-01-09 | Magnetek, Inc. | Anti-wallowing rotor mounting system |
| JP3993674B2 (en) * | 1997-12-01 | 2007-10-17 | ヤンマー株式会社 | Noise reduction mechanism for internal combustion engines |
| US6129455A (en) * | 1998-11-10 | 2000-10-10 | Ford Motor Company | Bearing assembly |
| JP2005133869A (en) * | 2003-10-31 | 2005-05-26 | Nsk Ltd | Tapered roller bearing for transmission |
| JP4415709B2 (en) * | 2004-03-11 | 2010-02-17 | 日本精工株式会社 | Toroidal continuously variable transmission |
| JP2007092863A (en) * | 2005-09-28 | 2007-04-12 | Jtekt Corp | Bearing device |
| JP4877044B2 (en) * | 2007-04-25 | 2012-02-15 | 日本精工株式会社 | Bearing device and method for assembling bearing device |
| JP5274198B2 (en) * | 2008-10-20 | 2013-08-28 | アイシン・エィ・ダブリュ株式会社 | Belt type continuously variable transmission |
-
2012
- 2012-02-15 JP JP2012030442A patent/JP5877084B2/en active Active
-
2013
- 2013-01-30 CN CN201310035145.0A patent/CN103256376B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201125966Y (en) * | 2007-12-12 | 2008-10-01 | 余战方 | External fixing type bearing and bearing support structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5877084B2 (en) | 2016-03-02 |
| JP2013167286A (en) | 2013-08-29 |
| CN103256376A (en) | 2013-08-21 |
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