CN105134757B - A kind of ball-joint device - Google Patents
A kind of ball-joint device Download PDFInfo
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- CN105134757B CN105134757B CN201510353480.4A CN201510353480A CN105134757B CN 105134757 B CN105134757 B CN 105134757B CN 201510353480 A CN201510353480 A CN 201510353480A CN 105134757 B CN105134757 B CN 105134757B
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- cambered surface
- ball
- fixed part
- joint portion
- radian
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Abstract
The present invention provides a kind of ball-joint device, including ball-joint portion and connecting portion, the ball-joint portion have the first spherical joint portion, and the first spherical joint portion has first surface；The connecting portion has the first carrier, the first fixed part, the first cambered surface and the second cambered surface, and first carrier coordinates so that the first spherical joint portion is rotationally arranged at the connecting portion with first fixed part；Wherein, when the first spherical joint portion is arranged at the connecting portion, first cambered surface is formed with the first surface respectively with second cambered surface interferes, and first cambered surface is not consistent with second cambered surface.Whereby, caused by part tolerance being overcome the problem of active force inequality.
Description
Technical field
The present invention relates to mechanical activity connection area, more particularly to a kind of attachment structure with ball-joint.
Background technology
Ball joint is typically made up of fixture, movable adjustment ring and adjustment screw at present, with the artificial of passive type
Manually adjusting screw forces tight mode to produce frictional force, to reach while 360 degree of ball joint rotates freely with fastening
Connection effect, to rotate and a certain state can be relatively fixed to.But said structure may have adjustment under long-time use
Screw worked itself loose move back and frictional force reduce the problem of, it is necessary to reuse manually repeat adjust, for need not change torsion device for
It is a kind of puzzlement.
Another ball joint structure without adjustment ring is then coordinated using carrier with fixed part by multiple connectors locks
Attached generation frictional force, wherein, the fixture has multiple abutting parts, and the abutting part has a cambered surface, each cambered surface uniformly or
It is symmetrically distributed on the circumference of fixture one, and each cambered surface abuts the surface of the ball joint, due to each cambered surface knot
Structure is identical, when perfect condition, according to the plurality of connector that locks clockwise or counter-clockwise, when the carrier and the fixed part are matched somebody with somebody
When closing locking, multiple cambered surfaces abut the surface of the ball joint, make the surface uniform force to realize fastening, so its friction
Power will be varied from according to accessory size difference, and fastening effect is bad, and this structure can not overcome part tolerance in the volume production stage
Variation causes the frictional force at product interference position to be not quite similar, local friction deficiency, or even the relative tilting in some parts.
Therefore, it is necessary to a kind of new ball-joint device is designed, to overcome drawbacks described above.
The content of the invention
It is an object of the invention to provide a kind of ball-joint device, active force caused by it can overcome part tolerance is uneven
The problem of.
To reach above-mentioned purpose, the invention provides a kind of ball-joint device, including ball-joint portion and connecting portion, the ball closes
Section portion has the first spherical joint portion, and the first spherical joint portion has first surface；The connecting portion has the first carrier, the
One fixed part, the first cambered surface and the second cambered surface, first carrier coordinate so that the first spherical knot with first fixed part
Conjunction portion is rotationally arranged at the connecting portion；Wherein, when the first spherical joint portion is arranged at the connecting portion, first cambered surface
Formed and interfered with the first surface respectively with second cambered surface, and first cambered surface is not consistent with second cambered surface.
Preferably, first cambered surface has the first radian, second cambered surface has the second radian, wherein, first cambered surface
With second cambered surface be not consistent for first radian and second radian it is unequal.
Preferably, the ball-joint device also includes the second connector, first radian is more than second radian, second company
Fitting is set adjacent to second cambered surface, to connect first carrier and first fixed part.
Preferably, first cambered surface have it is multiple, multiple first cambered surfaces uniformly or be symmetrically distributed in this first fix
Portion；Second cambered surface has multiple, and multiple second cambered surfaces uniformly or are symmetrically distributed in first fixed part.
Preferably, first cambered surface there are two respectively with second cambered surface, sequentially it is alternately distributed in first fixed part.
Preferably, the ball-joint portion also has head rod, first carrier has first through hole, when first ball
When shape joint portion is arranged at the connecting portion, the head rod is bearing on through the first through hole, the first spherical joint portion
At the first through hole.
Preferably, the ball-joint device also includes multiple first connectors, first carrier has multiple first connections
Hole, first fixed part have multiple second connecting holes, and the plurality of first connecting hole corresponds with the plurality of second connecting hole,
Wherein, the plurality of first connecting hole is connected with the plurality of second connecting hole by multiple first connectors, so that this first holds
Socket part coordinates with first fixed part to be fastened.
Preferably, the ball-joint device also includes chute, the chute is formed at adjacent first cambered surface and second cambered surface
Between.
Preferably, first fixed part has the first abutting part and the second abutting part, first cambered surface is located at this and first supported
Socket part, second cambered surface are located at second abutting part.
Preferably, first abutting part and or second abutting part there is cushion space.
Compared with prior art, ball-joint device provided by the invention, the first cambered surface and the second cambered surface and the first table are passed through
Face interference degrees are different, there is provided while stable frictional force, overcome the influence of the assembling tolerance of part on the whole, the company of holding
Stable fastening frictional force between fitting and ball-joint portion.
Brief description of the drawings
Fig. 1 is the structural blast schematic diagram of the ball-joint device of one embodiment of the invention；
Fig. 2 is the dimensional structure diagram of the ball-joint device of one embodiment of the invention；
Fig. 3 is the part that first fixed part of one embodiment of the invention and the first spherical joint portion produce one side structure of interference
Enlarged diagram；
Fig. 4 is cross-sectional views of the Fig. 2 along A-A directions；
Fig. 5 is cross-sectional views of the Fig. 2 along B-B directions.
Embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment detailed
It is described as follows.
Some vocabulary has been used among specification and claims to censure specific element.Have in art
Usual skill is, it is to be appreciated that manufacturer may call same element with different nouns.This specification and right will
Ask book not in a manner of the difference of title is used as and distinguishes element, but differentiation is used as with the difference of element functionally
Criterion.It is open term in the " comprising " of specification in the whole text and claim mentioned in, therefore should be construed to " including but
It is not limited to ".
Referring to figs. 1 to the structural representation for the ball-joint device for shown in Fig. 5, disclosing the embodiment of the present invention, ball-joint dress
Putting 100 includes ball-joint portion 1, connecting portion 2, the first connector 3, and the first connector 3 has multiple, multiple generals of first connectors 3
The connecting portion 2 is fixed in the ball-joint portion 1 so that ball-joint portion 1 can opposing connections 2 rotate to meet the tune of joint junction
Section needs.
Ball-joint portion 1 has the first spherical joint portion 11 and a head rod 12, and the first spherical joint portion 11 is fixed on the
One end of one connecting rod 12.First spherical joint portion 11 has first surface 111, and first surface 111 is interfered with shape with connecting portion 2
Into phase mutual friction, reach the effect of tightened relative.
Connecting portion 2 has the first carrier 21 and the first fixed part 22, the first fixed part 22 have the first abutting part 221 with
Second abutting part 222, the first carrier 21 can be fixedly connected with the first fixed part 22 by the first connector 3, and can form one
Accommodation space 212, to accommodate the first spherical joint portion 11, first carrier 21 coordinates with first fixed part 22 so that should
First spherical joint portion 11 is rotationally arranged in the connecting portion 2, so as to realize being rotatably connected for joint connecting portion.The
One abutting part 221 and the second abutting part 222 can abut with the first spherical joint portion 11 respectively mutually compresses power to be formed, when first
When spherical opposing connections 2 of joint portion 11 rotate, the first abutting part 221 and the second abutting part 222 can respectively with the first spherical knot
Conjunction portion 11 is abutted to form mutual frictional force.First abutting part 221 has the first cambered surface 2211, and the second abutting part 222 has the
Two cambered surfaces 2221, when ball-joint portion 1 is rotationally arranged at the accommodation space 212 of connecting portion 2, the first cambered surface 2211 and second
Cambered surface 2221 abuts with first surface 111 to form interference respectively, and the first cambered surface 2211 is not consistent with the second cambered surface 2221, and first
Cambered surface 2211 is different from the second cambered surface 2221 and the interference of the formation of first surface 111 with the interference degrees that first surface 111 is formed
Degree.In practical application, the first abutting part 221 and the second abutting part 222 can be made up of elastic material.
Preferably, the first abutting part 221 has multiple, and multiple first abutting parts 221 uniformly or are symmetrically distributed in first
On first circumference C of fixed part 22；Second abutting part 222 also has multiple, and multiple second abutting parts 222 are also uniformly or symmetrical
It is distributed on first circumference C of the first fixed part 22；That is, first cambered surface 2211 there are multiple, multiple first cambered surfaces 2211
It is uniform or symmetrical along first circumference C；Second cambered surface 2221 have it is multiple, multiple second cambered surfaces 2221 along this first circle
All C are uniform or symmetrical.In the present embodiment, the first abutting part 221 and the second abutting part 222 have two respectively, sequentially
It is alternately distributed on first circumference C of the first fixed part 22, shape between the adjacent abutting part 222 of first abutting part 221 and second
Into there is chute 223, the sky of deformation is produced when compressing first surface 111 with the first abutting part 221 of offer and the second abutting part 222
Between.From the foregoing, it will be observed that the first cambered surface 2211 and the second cambered surface 2221 have two respectively, sequentially along first circle of the first fixed part 22
All C are alternately distributed.Whereby, it is uniformly distributed with power of the guarantee effect in first surface 111, avoids producing lateral deviation, cause fastening to be imitated
Fruit is bad.
Fig. 3 is referred to, extends the first cambered surface 2211 in foundation arc length L1 on first circumference C of the first fixed part 22,
To form the first free margins S1 of arc, the first cambered surface 2211 is a part for the first spherome surface on side with respect to arc length L1,
First spheroid has the first center of circle O1, and the first cambered surface 2211 has the first radian θ 1；In first circle of the first fixed part 22
Extend the second cambered surface 2221 according to arc length L2 on all C, the side with respect to arc length L2 is to form the second free margins S2 of arc, and the
Two cambered surfaces 2221 are a part for the second spherome surface, and second spheroid has the second center of circle O2, and the second cambered surface 2221 is with the
Two radian θ 2, arc length L2 are equal to arc length L1, or arc length L2 close with arc length L1；First cambered surface 2211 and the second arc
It is that first radian θ 1 and second radian θ 2 are unequal that face 2221, which is not consistent,.In the present embodiment, first radian θ 1 is the
For one free margins S1 with respect to the radian that the first center of circle O1 is formed, second radian θ 2 is the second free margins S2 with respect to the second center of circle O1 shapes
Into radian.
In the present embodiment, first radian θ 1 is more than second radian θ 2, and the ball-joint device 100 also includes second and connected
Fitting 4, the second connector 4 are set adjacent to first cambered surface 2211, to connect the first carrier 21 and the first fixed part 22.It is excellent
Choosing, there are multiple 3rd connecting holes 214 on the first carrier 21, there are multiple 4th connecting holes 224 on the first fixed part 22,
3rd connecting hole 214 is correspondingly arranged with the 4th connecting hole 224, is connected by the connecting hole 214 and the 4th of the second connector 4 connection the 3rd
Hole 224 is connect, so that the first carrier 21 is fastenedly connected with the first fixed part 22.Preferably, the 3rd connecting hole 214 is silk seat, the
Four connecting holes 224 are screw, and the second connector 4 is screw, with this fastening that cooperates.
In an embodiment, first spheroid has the first diameter R1, and second spheroid has Second bobbin diameter R2, and this first
Diameter R1 is less than Second bobbin diameter R2, first radian θ 1 that is, the first cambered surface 2211 curved surface radian, and second radian θ 2 is also
That is the curved surface radian of the second cambered surface 2211, first radian θ 1 are more than second radian θ 2, and whereby, the first cambered surface 2211 is in first
The interference degrees on surface 111 are more than the second cambered surface 2221 and the interference degrees of first surface 111.
Preferably, the first carrier 21 has first through hole 211 and multiple first connecting holes 213, and the first fixed part 22 has
There are multiple second connecting holes 223, the plurality of first connecting hole 213 is set in the plurality of second connecting hole 223 in one-to-one corresponding, its
In, the plurality of first connecting hole 213 is connected with the plurality of second connecting hole 223 by the plurality of first connector 3, so that first
The fixed part 22 of carrier 21 and first coordinates fastening.In the present embodiment, the first carrier 21 has four the first connecting holes
213, the first fixed part 22 is correspondingly arranged on four the second connecting holes 223, and every one first connecting hole 213 passes through one first connector
3 second connecting holes 223 corresponding with one, which coordinate, to be fixed；Preferably, the first connecting hole 214 is silk seat, and the second connecting hole 224 is spiral shell
Hole, the second connector 4 are screw, alternative with this fastening that cooperates, and the first connecting hole 214 is screw, the second connecting hole
224 be silk seat.This is only that one embodiment of the present invention is not limited thereto, and the first carrier 21 is consolidated with the first fixed part 22
Clamping or other modes can also be used by connecing mode.
Fig. 1 is referred to again, when assembling ball-joint device 100, first by the free end of the head rod 12 in ball-joint portion 1
Through first through hole 211, until the first spherical joint portion 11 is connected at first through hole 211, then the first fixed part 22 is relative
First carrier 21 is moved, and the first cambered surface 2211 first is formed with first surface 111 and compressed, and first abutting part 221 produces bullet
Property deformation, continue to move the first fixed part 22 relative to the first carrier 21, the second cambered surface 2221 and first surface 111 are formed and supported
Pressure, to provide a fastening pressure fixed, when the opposing connections 2 of ball-joint portion 1 rotate, there is provided a relatively-stationary friction
Power, now, the first spherical joint portion 11 are bearing at first through hole 211.Again will neighbouring second cambered surface by the first connector 3
2221 position is fixed, and circulates one week with this to be completely fixed.In this way, it can be provided by first fastening the position of the second cambered surface 2221
Fixed friction power to ensure the stabilization of structure, then overcome the assembling tolerance of part on the whole by fastening the first cambered surface 2211
Influence, keep fastening frictional force stable between connecting portion 2 and ball-joint portion 1, play a part of second consolidation to ensure structure
Stability.
Fig. 4 is referred to, the first abutting part 221 has cushion space 2222, when the first cambered surface 2211 is supported with first surface 111
When connecing, the first abutting part 221 can form an elastic deformation by cushion space 2222, further meet that more dimensional structures cause to rub
The problem of wiping power deficiency or interference.Fig. 5 is see also, the second abutting part 222 also has cushion space 2222, when the second cambered surface
2221 with first surface 111 formed interfere when, certain deformation can be produced by cushion space 2222, makes the second cambered surface 2221 right
The active force of first surface 111 is more uniform, avoids the occurrence of local pressure inequality.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only the example for implementing the present invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
In the range of the change and retouching made, belong to the scope of patent protection of the present invention.
Claims (9)
1. a kind of ball-joint device, including ball-joint portion and connecting portion, the ball-joint portion has the first spherical joint portion, its feature
It is,
The first spherical joint portion has first surface；
The connecting portion has the first carrier, the first fixed part, the first cambered surface and the second cambered surface, first carrier with this
One fixed part coordinates so that the first spherical joint portion is rotationally arranged at the connecting portion；
Wherein, when the first spherical joint portion is arranged at the connecting portion, first cambered surface and second cambered surface respectively with this
One surface forms interference, and first cambered surface is a part for the first spherome surface, and first spheroid has first center of circle, and this
One cambered surface has the first radian, and second cambered surface is a part for the second spherome surface, and second spheroid has second center of circle, should
Second cambered surface has the second radian, and first radian and second radian are unequal, and first cambered surface is formed with the first surface
Interference degrees be different from the interference degrees that second cambered surface and the first surface are formed, while to provide fixed friction power gram
Take the influence of the assembling tolerance of part.
2. ball-joint device as claimed in claim 1, it is characterised in that be also more than including the second connector, first radian
Second radian, second connector is set adjacent to second cambered surface, to connect first carrier and first fixed part.
3. ball-joint device as claimed in claim 1, it is characterised in that first cambered surface has multiple, multiple first arcs
Face is uniform or is symmetrically distributed in first fixed part；Second cambered surface has multiple, and multiple second cambered surfaces are uniform or right
Title is distributed in first fixed part.
4. ball-joint device as claimed in claim 3, it is characterised in that first cambered surface has two respectively with second cambered surface
It is individual, sequentially it is alternately distributed in first fixed part.
5. ball-joint device as claimed in claim 1, it is characterised in that the ball-joint portion also has head rod, and this
One carrier has first through hole, when the first spherical joint portion is arranged at the connecting portion, the head rod through this
First through hole, the first spherical joint portion are bearing at the first through hole.
6. ball-joint device as claimed in claim 1, it is characterised in that also including multiple first connectors, first undertaking
Portion has multiple first connecting holes, and first fixed part has multiple second connecting holes, the plurality of first connecting hole with it is the plurality of
Second connecting hole corresponds, wherein, the plurality of first connecting hole and the plurality of second connecting hole first are connected by multiple this
Part connects, and is fastened so that first carrier coordinates with first fixed part.
7. ball-joint device as claimed in claim 1, it is characterised in that also including chute, the chute be formed at it is adjacent this
Between one cambered surface and second cambered surface.
8. ball-joint device as claimed in claim 1, it is characterised in that first fixed part has the first abutting part and second
Abutting part, first cambered surface are located at first abutting part, and second cambered surface is located at second abutting part.
9. ball-joint device as claimed in claim 8, it is characterised in that first abutting part and/or second abutting part tool
There is cushion space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353480.4A CN105134757B (en) | 2015-06-24 | 2015-06-24 | A kind of ball-joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353480.4A CN105134757B (en) | 2015-06-24 | 2015-06-24 | A kind of ball-joint device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134757A CN105134757A (en) | 2015-12-09 |
| CN105134757B true CN105134757B (en) | 2017-12-29 |
Family
ID=54720251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510353480.4A Active CN105134757B (en) | 2015-06-24 | 2015-06-24 | A kind of ball-joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134757B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035965B (en) * | 2018-02-08 | 2023-09-26 | 哈尔滨工业大学深圳研究生院 | Rigid-flexible two-stage locking ball joint |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2838330A (en) * | 1954-12-15 | 1958-06-10 | Thompson Prod Inc | Self-righting ball joint assembly |
| DE10206622A1 (en) * | 2002-02-15 | 2003-08-28 | Zf Lemfoerder Metallwaren Ag | Method and a device for mounting ball joints with at least one connecting part |
| PL1662158T3 (en) * | 2004-11-25 | 2008-07-31 | Ind Auxiliar Alavesa S A Inauxa S A | Ball joint device |
| KR100951776B1 (en) * | 2007-12-14 | 2010-04-08 | 주식회사 센트랄 | Ball seat for ball joint, assembly system and method thereof |
| CN201190725Y (en) * | 2008-04-22 | 2009-02-04 | 金宝电子工业股份有限公司 | Composite structure for universal joint |
| CN102261372B (en) * | 2010-05-28 | 2014-03-26 | 鸿富锦精密工业（深圳）有限公司 | Bulb joint |
-
2015
- 2015-06-24 CN CN201510353480.4A patent/CN105134757B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105134757A (en) | 2015-12-09 |
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