CN110185718A - Installs fixture and installation method - Google Patents
Installs fixture and installation method Download PDFInfo
- Publication number
- CN110185718A CN110185718A CN201910131096.8A CN201910131096A CN110185718A CN 110185718 A CN110185718 A CN 110185718A CN 201910131096 A CN201910131096 A CN 201910131096A CN 110185718 A CN110185718 A CN 110185718A
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- China
- Prior art keywords
- bearing unit
- rolling element
- peripheral surface
- rolling
- installs fixture
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Classifications
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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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
Abstract
The present invention provides a kind of installs fixture and installation method.Installs fixture is used to for inner ring component being held in separating gap and coaxial the peripheral side that section is circular axis.Installs fixture has: bearing unit, and the cricoid retainer for having the multiple rolling elements being in rolling contact with the outer peripheral surface of axis and keeping multiple rolling elements, the rolling element is made of roller or multiple rows of ball；And guidance cylinder, the inner peripheral surface for being in rolling contact rolling element and the guidance cylinder with the outside for being nested in multiple rolling elements, and at least part of inner ring component is guided and this is made to be inserted into the inner circumferential side of the guidance cylinder at least partially.
Description
What it is by the Japanese patent application 2018-029255 proposed on 2 22nd, 2018 includes specification, attached drawing and abstract
Disclosure inside is fully incorporated in this as reference.
Technical field
The present invention relates to for two components are separated into gap and remain coaxial installs fixture and use the installation
The installation method that fixture carries out.
Background technique
In one-way clutch, when relative to cycle component and when inner ring component is rotated to a direction, the fasteners such as voussoir
It is engaging-in to be rotated integrally in cycle component and inner ring component, cycle component with inner ring component.The state is " lock state ".Relative to
This, when relative to cycle component and inner ring component to other direction rotate when, it is described it is engaging-in be released from, relative to cycle component
The idle running of inner ring component.The state is " free state ".In order to function one-way clutch and cycle component and inner ring in this way
Component needs to configure as coaxial.There is the knot of rolling bearing for this purpose, using and being situated between cycle component and inner ring component
Structure (for example, referring to Japanese Unexamined Patent Publication 2006-322597 bulletin).
According to the difference for the equipment for using one-way clutch exist as in the case illustrated in figure 10: cycle component 91 with it is interior
Be not situated between directly the feelings for having rolling bearing and above-mentioned cycle component 91 being made to be configured to coaxial with inner ring component 92 between circle component 92
Condition.In equipment shown in Fig. 10, cycle component 91 is supported on via the rolling bearing 99 being made up of cage roller from radially inner side
Axis 90.In contrast, gap e is arranged in inner ring component 92 between axis 90, pass through fixed hand at the position P1 of axial side
Section (for example, weld etc.) and it is fixed with axis 90.The structure is to for example install different types of inner ring to unitized axis 90
Component 92.
Cylindric inner ring component 92 is fixed on axis 90 at the position P1 of axial side.At this time, it may be necessary to by inner ring component
92 and axis 90 in the state of separating gap e and remain coaxial, carry out based on for example welding etc. fixation.
Accordingly it is contemplated that using the method for fixture 95 shown in Figure 11.The fixture 95 is arranged in the peripheral side of axis 90
Cylindric component.The fixture 95 has path inner peripheral surface 96 and major diameter inner peripheral surface 97.The periphery of path inner peripheral surface 96 and axis 90
Face 93 is slightly larger compared to internal diameter.The internal diameter compared with the outer peripheral surface 94 of inner ring component 92 of major diameter inner peripheral surface 97 is slightly larger.Path inner peripheral surface 96
Coaxial is accurately manufactured into major diameter inner peripheral surface 97.Axis 90 and inner ring component 92 is set to be located at the inner circumferential side of the fixture 95.By
This, can remain coaxial with separating gap e for axis 90 and inner ring component 92.In the state of the holding, for example, by weldering
Tap into the fixation of row axis 90 Yu inner ring component 92.That is, the state of the holding maintains until welding and completing.
However, the path inner peripheral surface 96 of fixture 95 and the gap f1 of the outer peripheral surface 93 of axis 90 are small.Also, work as the big of fixture 95
Gap f2 hours of the outer peripheral surface 94 of diameter inner peripheral surface 97 and inner ring component 92, it is difficult to carry out the operation to the nested fixture 95 of axis 90.
And, it is difficult to carry out the operation that inner ring component 92 is inserted between fixture 95 and axis 90.Even if being mounted in the peripheral side of axis 90
Fixture 95, due to gap f1, fixture 95 can also be tilted relative to axis 90.When even if such fixture 95 is slightly tilted, by inner ring structure
Part 92 can also become more difficult to the operation being inserted between fixture 95 and axis 90.In order to make it possible that above-mentioned operation (is held
Easily), as long as increasing described gap f1, f2.However, in this case, the concentricity of axis 90 and inner ring component 92 declines.
In addition, two components are separated gap e as the relationship of the axis 90 and inner ring component 92 and are become concentric
The structure configured to shape not only exists in the slewing shown in Fig. 10 with one-way clutch, in other equipment
In the presence of.
Summary of the invention
Have one of the objects of the present invention is to provide one kind in order to be separated two components and remain coaxial with gap
And the installs fixture of the new technological means used and the installation method for using the fixture to carry out.
For cylindrical member to be held in the peripheral side that section is circular inner member with separating gap and coaxial
Be characterized in that in the structure of the installs fixture of one embodiment of the present invention, the installs fixture has: bearing unit, have with
The cricoid retainer of multiple rolling elements and the multiple rolling elements of holding that the outer peripheral surface of the inner member is in rolling contact, it is described
Rolling element is made of roller or multiple rows of ball；And guidance cylinder, there is the outside for being nested in multiple rolling elements and make the rolling
The inner peripheral surface that kinetoplast and the guidance cylinder are in rolling contact, and at least part of the cylindrical member is guided and makes this extremely
Few a part is inserted into the inner circumferential side of the guidance cylinder.
Detailed description of the invention
Before address aftermentioned feature of the invention and advantage by the explanation of following specific embodiment and referring to attached drawing
And define, wherein identical label indicates identical component.
Fig. 1 is the cross-sectional view of the slewing of the one-way clutch comprising being assembled using installs fixture of the invention.
Fig. 2 is the cross-sectional view for illustrating installs fixture.
Fig. 3 is the cross-sectional view of bearing unit.
Fig. 4 is the cross-sectional view for indicating the variation of bearing unit.
Fig. 5 is the cross-sectional view for illustrating the variation of installs fixture.
Fig. 6 is the explanatory diagram for having used the installation method of installs fixture.
Fig. 7 is the explanatory diagram for having used the installation method of installs fixture.
Fig. 8 is the cross-sectional view of the variation of the installs fixture of explanatory diagram 2.
Fig. 9 is the cross-sectional view for illustrating the installs fixture of other modes.
Figure 10 is the cross-sectional view of the slewing comprising one-way clutch.
Figure 11 is the cross-sectional view for illustrating previous fixture.
Specific embodiment
Fig. 1 is the cross-sectional view of the slewing of the one-way clutch 10 comprising being assembled using installs fixture of the invention.It should
Slewing has axis 7, rolling bearing 8 and one-way clutch 10.Axis 7 is rotated around central axis C.One-way clutch 10 has voussoir
11, retainer 12, spring 13, cycle component 14 and inner ring component 15.Retainer 12 is cricoid component, keeps multiple voussoirs
11.Spring 13 in order to by each voussoir 11 maintenance exert a force at defined posture.
Inner ring component 15 is cylindric component, and outer peripheral surface 27 is contacted with voussoir 11.Inner ring component 15 is in axial side
Fixed part 16 at be fixed on a part 17 of axis 7.Along week between the inner peripheral surface 28 of inner ring component 15 and the outer peripheral surface 29 of axis 7
To being formed with gap e.Gap e is circumferentially constant.That is, axis 7 and inner ring component 15 separate gap e and connect as coaxial
Knot.By the above, inner ring component 15 is arranged centered on the central axis C of axis 7.The fixed part 16 and axis 7 of inner ring component 15
A part 17 fixed for example, by welding etc., fixed part 16 is integrally formed with a part of 17.In addition, fixed part 16 and one
The fixation for dividing 17 can be other means.For example, welding can be replaced and be bolt fastening or bonding.
Cycle component 14 has outer cylinder portion 18, annular portion 19 and inner cylindrical section 20.Outer cylinder portion 18 has cylindrical shape.
The inner circumferential face contact of voussoir 11 and outer cylinder portion 18.Annular portion 19 has annulus shape.Axis of the annular portion 19 from outer cylinder portion 18
To end be inwardly just extended to diameter.Inner cylindrical section 20 has cylindrical shape.Radial direction of the inner cylindrical section 20 from annular portion 19
The end of inside axially extends setting.
Rolling bearing 8 is provided between axis 7 and inner cylindrical section 20.Rolling bearing 8 is made of cage roller.That is, rolling bearing 8
The cricoid holding for (roller being needle roller in legend) 21 by multiple rollers and being kept these circumferentially spaced compartment of terrain of roller 21
Frame 22 is constituted.By the above, cycle component 14 is arranged centered on central axis C.
In the one-way clutch 10 of structure more than having, when inner ring component 15 and axis 7 relative to cycle component 14
When rotating together to a direction, voussoir 11 is engaging-in in cycle component 14 and inner ring component 15, cycle component 14 and inner ring component 15
It rotates integrally and (is unable to relative rotation).The state is " lock state ".In contrast, when the inner ring structure relative to cycle component 14
Part 15 to other direction rotate when, it is described it is engaging-in be released from, relative to cycle component 14 inner ring component 15 idle running (can be opposite
Rotation).The state is " free state ".In addition, in one-way clutch 10, it is engaging-in to cycle component 14 and inner ring component 15
Component (fastener) can be the component other than voussoir 11.
In slewing shown in Fig. 1, cycle component 14 is supported on axis 7 from radially inner side via rolling bearing 8.Relatively
In this, inner ring component 15 is not directly supported on axis 7 by bearing etc..That is, gap is arranged between axis 7 in inner ring component 15
E, the position P1 in axial side are fixed with axis 7 by (fixing means) such as welding.The structure in order to unitized axis 7 pacify
Fill different types of inner ring component 15.
Position P1 of the cylindric inner ring component 15 in axial side is fixed on axis 7.However, at this time, it may be necessary to by inner ring
Component 15 is welded remain coaxial with axis 7 with separating gap e in the state of.That is, the state of the holding is maintained to welding
Until connecing completion.Therefore, using installs fixture 30 shown in Fig. 2.
Fig. 2 is the cross-sectional view for illustrating installs fixture 30.The installs fixture 30 is for by inner ring component (cylindrical member) 15
It is maintained at the fixture for the peripheral side that section is circular axis (inner member) 7 with separating gap e and coaxial.In addition, axis 7 can be with
It is solid, or hollow.Installs fixture 30 has bearing unit 31 and guidance cylinder 32.Bearing unit 31 has multiple rollings
Kinetoplast 33 and the cricoid retainer 34 for keeping these rolling elements 33.The rolling element 33 of present embodiment is the roller of cylindrical shape
(needle roller).Bearing unit 31 is made of (using as rolling bearing) cage roller.Retainer 34 keep each rolling element 33 with
The outer peripheral surface 29 of axis 7 is in rolling contact.
The rolling element 33 and retainer 34 of present embodiment are to be by the structure member used as rolling bearing conversion
The structure of fixture.Retainer 34 has the first annular portion 35, the second annular portion 36 and multiple column portions 37.First annular portion 35 is set
It sets in the axial side of rolling element 33.The axial other side of rolling element 33 is arranged in second annular portion 36.Column portion 37 is round by first
Ring portion 35 and the second annular portion 36 link.Fig. 3 is the cross-sectional view of bearing unit 31.In Fig. 2 and Fig. 3, the first annular portion 35 with
Become the pocket hole 38 of receiving rolling element 33 between second annular portion 36 and between column portion 37,37 adjacent in the circumferential.In pocket hole
Minim gap is provided between 38 and rolling element 33.Therefore, posture can be altered slightly in the range of pocket hole 38 in rolling element 33.
Multiple positions circumferentially are arranged in rolling element 33.In the mode of Fig. 3, do not keep rolling in whole pocket holes 38
Body 33 and a part (being three pocket holes 38 in legend) in whole pocket holes 38 keeps rolling element 33.Rolling element 33 needs
Three or more are set as, as shown in figure 3, these rolling elements 33 circumferentially equably configure.In this way, rolling element 33 is circumferentially with equalization
The mode of configuration is set at least three positions.In addition it is also possible to as shown in figure 4, accommodate rolling element 33 in whole pocket holes 38.
In Fig. 3, in cricoid retainer 12, the part (pocket hole 38) of rolling element 33 will be kept to be known as " maintaining part
24 ", there will be no the part of rolling element 33 (pocket holes 38) to be known as " non-maintaining part 23 ".The retainer 12 of Fig. 3, which circumferentially has, to be protected
Hold portion 24 and non-maintaining part 23.Maintaining part 24 is to constitute the range in the pocket hole 38 for keeping rolling element 33.The week of one maintaining part 24
It is defined as keeping the circumferential lengths in the pocket hole 38 of rolling element 33 to length.In the mode of Fig. 3, three maintaining parts 24 are circumferentially
Equably configure.Non- maintaining part 23 is to constitute the range in the pocket hole 38 for not keeping rolling element 33.The circumferential direction of one non-maintaining part 23
Length is defined as not keeping the circumferential lengths in the pocket hole 38 of rolling element 33.In the retainer 12 of present embodiment, circumferentially
Multiple pocket holes 38 are set, and the shape in each pocket hole 38 is identical.In the example in figure 3, the number of maintaining part 24 is " 3 ", in contrast,
The number of non-maintaining part 23 is " 9 ".Therefore, the summation of the circumferential lengths of maintaining part 24 is more total than the circumferential lengths of non-maintaining part 23
With it is short.
Rolling element 33 can also be illustrated in figure 5 multiple rows of ball other than the roller (needle roller) of cylindrical shape.That is, will
The group of circumferentially arranged multiple balls 33 configures two groups along axial direction side by side.Multiple balls 33 that each row's (each group) includes according to
It respectively arranges and is kept by the circumferentially spaced compartment of terrain of retainer 34.
Guidance cylinder 32 is cylindric component.Guidance cylinder 32 is longer than bearing unit 31 in the axial direction.Guide cylinder
The 32 plate thickness length more axial than it is small (thin), and for example, several millimeters.Guide cylinder 32 axial side (being right side in Fig. 2)
Inner peripheral surface 40 with guidance, in the inner peripheral surface 39 of the axial other side (being left side in Fig. 2) with rolling element 33.It rolls
The inner peripheral surface 39 of body 33 is nested with outside (radial outside) of multiple rolling elements 33 and makes these rolling elements 33 and the rolling
The barrel surface that the inner peripheral surface 39 of body 33 is in rolling contact.The inner peripheral surface 40 of guidance is a part for guiding inner ring component 15
15a and the barrel surface inserted it into.The inner peripheral surface 40 of guidance can compared with the outer peripheral surface 27 of inner ring component 15 diameter it is slightly larger,
Can also compared with the outer peripheral surface 27 of inner ring component 15 diameter it is identical.In the present embodiment, the inner peripheral surface 39 of rolling element 33
It is identical as the internal diameter of inner peripheral surface 40 of guidance, moreover, their roundness is high-precision.The internal diameter of inner peripheral surface 39 (40) and more
The external diameter of a circle of a rolling element 33 is identical.It guides cylinder 32 that there is the inner peripheral surface 39,40 of high dimensional accuracy, is made repeatedly
With.Therefore, it is manufactured by being difficult to generate the hard material (steel) of scar or abrasion.Specifically, guidance cylinder 32 is bearing
Steel.
The diameter D1 of rolling element 33 can be slightly larger than the radius R1 of the outer peripheral surface 27 of inner ring component 15 and the outer peripheral surface 29 of axis 7
Radius R2 difference (R1-R2).In the case where diameter D1 is slightly larger than poor (R1-R2), diameter D1 and poor (R1-R2)
Difference maximum value be 0.01 millimeter.In addition, diameter D1 can be identical as poor (R1-R2).In this way, the diameter of rolling element 33
D1 is substantially equal to the difference (D1 ≈ R1-R2) of the radius R2 of the radius R1 of the outer peripheral surface 27 of inner ring component 15 and the outer peripheral surface 29 of axis 7.
With this configuration, inner peripheral surface 40 (39) and inner ring component 15 that the guidance cylinder 32 in the outside of multiple rolling elements 33 has are nested in
Outer peripheral surface 27 compared to will not radially become smaller.It can obtain guiding for a part of 15a to inner ring component 15 as a result,
(guiding) and the inner peripheral surface 40 of guidance inserted it into.
In the present embodiment, the diameter D1 of rolling element 33 be equal to the radius R3 of inner peripheral surface 39 that guidance cylinder 32 has with
The difference (R3-R2) of the radius R2 of the outer peripheral surface 29 of axis 7.That is, rolling element 33 is radially with zero clearance between guidance 32 He of cylinder
Between axis 7.Alternatively, the diameter D1 of rolling element 33 can be slightly larger than poor (R3-R2).That is, rolling element 33 can be radially
As negative clearance between guidance cylinder 32 and axis 7.In the case where diameter D1 is slightly larger than poor (R3-R2), diameter
The maximum value of the difference of D1 and poor (R3-R2) is 0.01 millimeter.31 rigidity of bearing unit being made up of cage roller is relatively low.So
And by being set as negative clearance or zero clearance as described above, it can ensure that the rigidity of bearing unit 31.
Illustrate using the installs fixture 30 for having the structure, for inner ring component 15 (cylindrical member) to be controlled gap e
And coaxial be installed on section be circular axis (inner member) 7 peripheral side method.Here, explanation uses shown in Fig. 2
Mode installs fixture 30 the case where, but also become phase Tongfang using the case where installs fixture of mode shown in fig. 5 30
Method.
As shown in fig. 6, keeping axis 7 close to each other along axial direction with bearing unit 31, bearing unit 31 is nested in the periphery of axis 7
Side.The nested movement is carried out while making axis 7 with 31 relative rotation of bearing unit.Carry out relative rotation in this way, one
While being in rolling contact the rolling element 33 of bearing unit 31 and the outer peripheral surface 29 of axis 7, bearing unit 31 is nested in the outer of axis 7 on one side
Side.The friction that contact between bearing unit 31 and axis 7 generates becomes rolling friction, therefore resistance becomes smaller.Bearing is single as a result,
Member 31 is easy to be installed on axis 7.Moreover, because the resistance between bearing unit 31 and axis 7 reduces, therefore the decomposition after operation
Also it becomes easy.
When installing bearing unit 31 to axis 7, in the opposite side (being right side in Fig. 6) of axis 7, inner ring structure can be become
The state of axis 7 is embedded in outside a part of 15a of part 15.But in this state, axis 7 and inner ring component 15 are eccentric (as coaxial
Shape).
As shown in fig. 7, the outside that cylinder 32 will be guided to be nested in multiple rolling elements 33 that bearing unit 31 has.Make on one side
Bearing unit 31 carries out the nested movement with guidance 32 relative rotation of cylinder on one side.Relative rotation and rolling element 33 in this way
It is in rolling contact with the inner peripheral surface 39 of guidance cylinder 32.Therefore, guidance cylinder 32 is easy to be installed on bearing unit 31.That is, bearing is single
The friction that contact between member 31 and guidance cylinder 32 generates becomes rolling friction, therefore resistance reduces, and operation becomes easy.And
And since resistance is small, the decomposition after operation is also become easy.In addition, that cylinder 32 will be guided to bearing unit 31
Outside nesting while, or after outside from cylinder 32 to bearing unit 31 that will guide is nested, insertion inner ring component 15
A part of 15a.Specifically, a part of 15a of inner ring component 15 is guided (guiding) by the inner peripheral surface 40 of guidance cylinder 32
And it is inserted in the cricoid space K formed between guidance cylinder 32 and axis 7.
As a result, as shown in Fig. 2, become inner ring component 15 separate gap e (gap e is circumferentially constant) and coaxial protect
It is held in the state of the peripheral side of axis 7.Guidance cylinder 32 is in rolling contact by inner circumferential surface 39 and the rolling element 33 of bearing unit 31
And it can be rotated around central axis C.Therefore, when to a part of 15a of cricoid space K insertion inner ring component 15, preferably on one side
Make that cylinder 32 is guided to carry out on one side relative to the rotation of inner ring component 15.The operation being inserted into as a result, becomes easy.
The rolling element 33 that bearing unit 31 has is made of roller (or multiple rows of ball as shown in Figure 5).Therefore, it is supporting
Outside unit 31 in the state of axis 7, it is able to suppress inclination of the guidance cylinder 32 relative to axis 7.Therefore, axis 7 and guidance cylinder
32 accurately become coaxial.Inner ring component 15 to above-mentioned axis 7 and is guided into the cricoid space K between cylinder 32 as a result,
The operation of (referring to Fig. 7) insertion is compared with the past to be become easy.
It is provided between the pocket hole 38 (referring to Fig. 3, Fig. 4) for the retainer 34 that bearing unit 31 has and each rolling element 33
Minim gap.Posture can be altered slightly in the range of pocket hole 38 in rolling element 33 as a result,.Therefore, bearing unit is being used
In 31 each operation (Fig. 6 and Fig. 7), each rolling element 33 can rotate (on one side certainly with slightly changing posture in pocket hole 38
Turn to revolve on one side).Each operation becomes easy (resistance is small and smooth) as a result,.
Rolling element 33 is made of the roller (needle roller) of cylindrical shape, has convex shape in its outer peripheral surface.Thus, for example
(referring to Fig. 6) is able to suppress mutual interference (jam) when making bearing unit 31 be embedded in axis 7 from the end of axis 7, and operation becomes
It must be easy.
As previously discussed, the installs fixture 30 of present embodiment has bearing unit 31 and guidance cylinder 32.Bearing unit
31 have the multiple rolling elements 33 being in rolling contact with the outer peripheral surface 29 of axis 7 and keep the cricoid retainer of these rolling elements 33
34, which is made of roller (or multiple rows of ball).Guide cylinder 32 that there is inner peripheral surface 39, inner peripheral surface 40.Inner peripheral surface 39
It is nested in the outside of multiple rolling elements 33 and is in rolling contact these rolling elements 33 with the inner peripheral surface 39.Inner peripheral surface 40 is to inner ring structure
At least part 15a of part 15 is guided and the inner circumferential side that makes at least part 15a be inserted into the guidance cylinder 32.According to
Bearing unit 31 is nested in the state (referring to Fig. 6) of the peripheral side of axis 7, as shown in fig. 7, cylinder will be guided by the installs fixture 30
Body 32 is nested in the outside of the rolling element 33 of the bearing unit 31.Also, according to the installs fixture 30, for inner ring component 15
At least part 15a is guided and at least part 15a is inserted in the ring-type formed between guidance cylinder 32 and axis 7
Space K.As a result, become by inner ring component 15 separate gap e and coaxial be held in axis 7 peripheral side state
(referring to Fig. 2, Fig. 5).
In this case (referring to Fig. 2), each rolling element 33, which has, (substantially) is equal to the outer of inner ring component 15
The diameter D1 of the difference (R1-R2) of the radius R2 of the outer peripheral surface 29 of the radius R1 and axis 7 of circumferential surface 27.Therefore, when along guidance cylinder
When inner ring component 15 is axially guided and is inserted by the inner peripheral surface 40 of 32 guidance having, can further increase axis 7 with it is interior
Enclose the concentricity of component 15.
In the bearing unit 31 of present embodiment, each rolling element 33 is with negative clearance or zero clearance between guidance 32 He of cylinder
Between axis 7.31 rigidity of bearing unit being made of cage roller is relatively low, but becomes negative clearance or zero clearance as described above.As a result,
It can ensure that the rigidity of bearing unit 31.As a result, in the state of guiding cylinder 32 to be embedded in axis 7 outside across bearing unit 31, suppression
System guidance cylinder 32 is improved relative to the inclined function of axis 7.
As shown in figure 3, rolling element 33 is circumferentially set at least three in a manner of equivalent arrangements in bearing unit 31
Position.Retainer 34 circumferentially has the maintaining part 24 for keeping rolling element 33 and the non-maintaining part 23 there is no rolling element 33.It protects
The summation for holding the circumferential lengths in portion 24 is shorter than the summation of the circumferential lengths of non-maintaining part 23.That is, not in the whole of retainer 34
Pocket hole 38 keeps rolling element 33.Therefore, the part of the diameter positioned at non-maintaining part 23 in guidance cylinder 32 outward, although edge
Radial small (several microns), but it is easy to happen flexible deformation.Therefore, will guide cylinder 32 to the outer of bearing unit 31
When side is installed, moreover, guiding and inserting it into the inner circumferential side of guidance cylinder 32 in a part of 15a for inner ring component 15
When, there are its operations to become the case where being more easier.In addition, even if flexible deformation occurs because of external force for guidance cylinder 32, if
Its external force is released, then guides cylinder 32 also to revert to positive round by elastic recovering force.
By the above, according to the installs fixture 30, the inner ring component 15 compared with the past that can easily become is separated
Gap e and coaxial it is held in the state of the peripheral side of axis 7.As through Fig. 1 explanation, as long as in axis 7 and inner ring component
The state of the coaxial is maintained between 15 before welding is completed.
Fig. 8 is the cross-sectional view of the variation of the installs fixture 30 of explanatory diagram 2.The installs fixture of the installs fixture 30 and Fig. 2
30 compare, different on the point for having two bearing units.That is, the installs fixture 30 of Fig. 8 in addition to have the first bearing unit 31,
It guides except cylinder 32, is also equipped with the second bearing unit 41.The side of the structure and Fig. 2 of first bearing unit 31 and guidance cylinder 32
Formula is identical, omits the description.But the diameter D1 of the rolling element 33 about the first bearing unit 31, the internal diameter for guiding cylinder 32, have
When it is different from the mode of Fig. 2.Second bearing unit 41 has multiple rolling elements 43 and keeps the cricoid guarantor of these rolling elements 43
Hold frame 44.Rolling element 43 is the roller (needle roller) of cylindrical shape.It or can be multiple rows of ball.About the second bearing unit 41
It is made of (being used as rolling bearing) cage roller.Each rolling element 43 and inner ring component 15 (a part that retainer 44 is kept
The inner peripheral surface 40 of the guidance of outer peripheral surface 27 and guidance cylinder 32 15a) is in rolling contact.
In the case where installs fixture 30, inner ring component 15 is guided and is inserted it into guidance cylinder 32
Pre-set second bearing unit 41 in inside and axis 7 between the cricoid space that is formed.As long as at this point, making inner ring component 15
With 41 relative rotation of the second bearing unit.It inserts it into as a result, being guided for inner ring component 15 in the ring
In the operation in the space of shape, it is not sliding contact and becomes and be in rolling contact, therefore the operation becomes to be more easier.
Fig. 9 is the cross-sectional view for illustrating the installs fixture of other modes.The installs fixture 60 is for will be by cylindrical member structure
At cycle component 58 be maintained at separating gap e and coaxial shell (outer member) 56 inner circumferential side fixture.Shell 56
It is circular inner peripheral surface 57 with the section centered on central axis C.Cycle component 58 is separated as by installs fixture 60
Gap e and coaxial it is held in the state of the inner peripheral surface 57.
Installs fixture 60 has bearing unit 61 and cylindric guidance cylinder 62.Bearing unit 61 has and shell 56
The cricoid retainer 64 of multiple rolling elements 63 and the multiple rolling elements 63 of holding that inner peripheral surface 57 is in rolling contact.It is same with the mode
Sample, rolling element 63 are made of the roller of cylindrical shape, but may be multiple rows of ball (referring to Fig. 5).Bearing unit 61 and Fig. 2's
Bearing unit 31 is different compared to diameter sometimes, but structure is identical.Guide cylinder 62 that there is 69 He of outer peripheral surface of rolling element 63
The outer peripheral surface 70 of guidance.The outer peripheral surface 69 of rolling element 63 is nested in the inside (radially inner side) of multiple rolling elements 63 and makes to roll
Kinetoplast 63 and the outer peripheral surface 69 of the rolling element 63 are in rolling contact.The outer peripheral surface 70 of guidance guides cycle component 58
And make the peripheral side that guidance cylinder 62 is embedded in outside it.
It is used to for cycle component 58 being installed in shell 56 with separating gap e and coaxial using the installs fixture 60
The method of side is as described below.Firstly, make shell 56 and 61 relative rotation of bearing unit on one side, it is on one side that bearing unit 61 is nested
In the inner circumferential side of shell 56.Next, making bearing unit 61 and guidance 62 relative rotation of cylinder on one side, cylinder 62 will be guided on one side
It is nested in the inside of the rolling element 63 of bearing unit 61.Simultaneously with the operation, or after the operation, for cycle component
58 guide and are inserted in the cricoid space formed between guidance cylinder 62 and shell 56.It is carried out to cycle component 58
When guiding and being inserted into, preferably carried out while making cycle component 58 with guidance 62 relative rotation of cylinder.
According to this method, become by cycle component 58 separate gap e (gap e is circumferentially constant) and coaxial keep
State in the inner circumferential side of shell 56.It is in rolling contact the rolling element 63 of bearing unit 61 with shell 56, it on one side will bearing
Unit 61 is nested in the inner circumferential side of shell 56.Therefore, bearing unit 61 is easy to be installed on shell 56.Cylinder 62 will guided nested
At the inside of the bearing unit 61, rolling element 63 and the outer peripheral surface 69 of guidance cylinder 62 are in rolling contact.Therefore, cylinder 62 is guided
It is easy to be installed on bearing unit 61.Rolling element 63 is made of roller (or multiple rows of ball), therefore is able to suppress guidance 62 phase of cylinder
Inclination for shell 56.Therefore, shell 56 and guidance cylinder 62 accurately become coaxial.As a result, by cycle component 58
It is become easy to the operation for being formed in shell 56 and the cricoid space between cylinder 62 being guided to be inserted into is compared with the past.
The installs fixture 60 of Fig. 9 also has following each structure.Rolling element 63 has the inner peripheral surface for being substantially equal to shell 56
The difference (R5-R4) (or poor more slightly larger or equal than this) of the radius R4 of the inner peripheral surface 59 of 57 radius R5 and cycle component 58 it is straight
Diameter D2.Rolling element 63 is radially with negative clearance or zero clearance between guidance cylinder 62 and shell 56.Therefore, by cage roller structure
At bearing unit 61 rigidity it is relatively low.However, can ensure that bearing unit by being set as negative clearance or zero clearance as described above
61 rigidity.
Installs fixture 60 can have the structure illustrated by Fig. 3.That is, rolling element 63 is circumferentially in a manner of equivalent arrangements
It is set at least three positions.Retainer 64 circumferentially has the maintaining part 24 for keeping rolling element 63 and there is no rolling elements 63
Non- maintaining part 23.The summation of the circumferential lengths of maintaining part 24 is shorter than the summation of the circumferential lengths of non-maintaining part 23.
It is compared with the past easily to become cycle component 58 according to the installs fixture 60 by the above
Separate gap e and coaxial be held in shell 56 inner circumferential side state.For example, shell 56 and cycle component 58 is untouched
In the case where fixedly maintaining the state to be fixed, as long as maintaining the coaxial using the installs fixture 60 into
The operation of the row fixation.
Same as the installs fixture 30 of Fig. 8, the variation of the installs fixture 60 as Fig. 9 can make the second bearing unit
Between guidance cylinder 62 and cycle component 58.
Embodiment of disclosure illustrates on whole points without being restricted.Interest field of the invention does not limit
It is set to above-mentioned embodiment, whole changes in the range that the structure including recording with the range of claims is equal.?
In Fig. 3, the number of rolling element 33 (63) is set as three, but also can be set to five etc., number can change.Using described
The equipment of the installs fixture assembling of each mode can be the equipment other than the slewing with one-way clutch shown in FIG. 1.
According to the present invention, it is compared with the past be able to easily form for by cylindrical member separate gap and coaxial keep
State in the peripheral side (inner circumferential side) of inner member (outer member).
Claims (7)
1. a kind of installs fixture is circular inner member for cylindrical member to be held in section with separating gap and coaxial
Peripheral side, wherein the installs fixture includes:
Bearing unit has the multiple rolling elements being in rolling contact with the outer peripheral surface of the inner member and keeps multiple rolling elements
Cricoid retainer, the rolling element is made of roller or multiple rows of ball；And
Cylinder is guided, there is the outside for being nested in multiple rolling elements and be in rolling contact the rolling element and the guidance cylinder
Inner peripheral surface, and at least part of the cylindrical member is guided and this is made to be inserted into the guidance cylinder at least partially
Inner circumferential side.
2. installs fixture according to claim 1, wherein
The rolling element has the radius for the outer peripheral surface for being substantially equal to the cylindrical member and the outer peripheral surface of the inner member
The diameter of the difference of radius.
3. installs fixture according to claim 1, wherein
The rolling element is with negative clearance or zero clearance between the guidance cylinder and the inner member.
4. installs fixture described in any one of claim 1 to 3, wherein
The rolling element is circumferentially set at least three positions in a manner of equivalent arrangements,
The retainer circumferentially has the maintaining part for keeping the rolling element and the non-maintaining part there is no the rolling element,
The summation of the circumferential lengths of the maintaining part is shorter than the summation of the circumferential lengths of the non-maintaining part.
5. a kind of method for installation, for using the installs fixture described in any one of claims 1 to 33 and by institute
It states cylindrical member be installed on the peripheral side that section is the circular inner member with separating gap and coaxial, wherein
Make the inner member and the bearing unit relative rotation on one side, the bearing unit is nested in the inner member on one side
Peripheral side,
Make the bearing unit and the guidance cylinder relative rotation on one side, the guidance cylinder is nested in the bearing unit on one side
The rolling element outside, and at least part of the cylindrical member is guided and is inserted in this at least partially
The cricoid space formed between the guidance cylinder and the inner member.
6. a kind of installs fixture, for cylindrical member to be held in the inner circumferential side of outer member with separating gap and coaxial,
In, the installs fixture includes:
Bearing unit has the multiple rolling elements being in rolling contact with the inner peripheral surface of the outer member and keeps multiple rolling elements
Cricoid retainer, the rolling element is made of roller or multiple rows of ball；And
Cylinder is guided, there is the inside for being nested in multiple rolling elements and be in rolling contact the rolling element and the guidance cylinder
Outer peripheral surface, and at least part of the cylindrical member is guided and is made outside at least part embedded in the guidance cylinder
Peripheral side.
7. a kind of method for installation, for using the installs fixture as claimed in claim 6 and by the cylindrical member
It is installed on the inner circumferential side of the outer member with separating gap and coaxial, wherein
Make the outer member and the bearing unit relative rotation on one side, the bearing unit is embedded in the outer member on one side
Inner circumferential side,
Make the bearing unit and the guidance cylinder relative rotation on one side, the guidance cylinder is nested in the bearing unit on one side
The rolling element inside, and at least part of the cylindrical member is guided and is inserted in this at least partially
The cricoid space formed between the guidance cylinder and the outer member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018029255A JP6950571B2 (en) | 2018-02-22 | 2018-02-22 | Mounting jig and mounting method |
| JP2018-029255 | 2018-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110185718A true CN110185718A (en) | 2019-08-30 |
| CN110185718B CN110185718B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910131096.8A Active CN110185718B (en) | 2018-02-22 | 2019-02-21 | Mounting jig and mounting method |
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| Country | Link |
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| JP (1) | JP6950571B2 (en) |
| CN (1) | CN110185718B (en) |
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| JPH1199483A (en) * | 1997-09-30 | 1999-04-13 | Toshiba Corp | Positioning jig |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2019143736A (en) | 2019-08-29 |
| CN110185718B (en) | 2022-02-18 |
| JP6950571B2 (en) | 2021-10-13 |
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