CN109899378A - A kind of spherical hinge - Google Patents
A kind of spherical hinge Download PDFInfo
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- CN109899378A CN109899378A CN201910312773.6A CN201910312773A CN109899378A CN 109899378 A CN109899378 A CN 109899378A CN 201910312773 A CN201910312773 A CN 201910312773A CN 109899378 A CN109899378 A CN 109899378A
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- Prior art keywords
- axis
- ball
- ball head
- base
- bulb
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- 239000002184 metal Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 29
- 230000013011 mating Effects 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
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Abstract
本发明公开了一种球铰链，该球铰链包括：设置有球形槽的底座，与球形槽球面配合且能够绕第一轴线和第二轴线转动的球头，限制球头绕第三轴线旋转的限位结构；其中，第三轴线与球形槽深度方向的中心线共线，第一轴线、第二轴线和第三轴线两两垂直相交，且交点过球头的球心。上述球铰链实现了球头仅能绕第一轴线和第二轴线转动，其中，第一轴线和第二轴线垂直相交且交点过球头的球心，即实现了绕两个垂直相交的轴转动；同时，球头和底座的球形槽球面配合，二者的接触面积较大，较现有技术相比，有效提高了承载能力；同时，球头和球形槽的球面配合精度比十字运动副中两级轴的配合精度较高；上述球铰链的零件数量也较少，降低了成本。
The invention discloses a ball hinge, which comprises: a base provided with a spherical groove, a ball head that is spherically matched with the spherical groove and can rotate around a first axis and a second axis, and a ball head that restricts the rotation of the ball head around the third axis Limiting structure; wherein, the third axis is collinear with the center line in the depth direction of the spherical groove, the first axis, the second axis and the third axis are perpendicular to each other, and the intersection point passes through the ball center of the ball head. The above-mentioned ball hinge realizes that the ball head can only rotate around the first axis and the second axis, wherein the first axis and the second axis intersect vertically and the intersection point passes through the ball center of the ball head, that is, the rotation around two perpendicularly intersecting axes is realized. At the same time, the spherical surface of the ball head and the spherical groove of the base cooperate with each other, and the contact area of the two is larger, which effectively improves the bearing capacity compared with the existing technology; The matching accuracy of the two-stage shaft is high; the number of parts of the above-mentioned ball hinge is also small, which reduces the cost.
Description
Technical field
The present invention relates to kinematic pair technical fields, more specifically to a kind of spherical hinge.
Background technique
In mechanical equipment, generallys use cross kinematic pair and realize around two axis to intersect vertically rotations, still, cross movement
Secondary bearing capacity is poor；In addition, the cooperation precision of two-stage axis is lower in cross kinematic pair, number of parts is also more, causes into
This is higher.
It is rotated in conclusion how to realize around two axis to intersect vertically, is current this field skill to improve bearing capacity
Art personnel's urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of spherical hinges, realize and rotate around two axis to intersect vertically, to improve carrying energy
Power.
To achieve the goals above, the invention provides the following technical scheme:
A kind of spherical hinge, comprising: the pedestal of spherical groove is provided with, with spherical groove mating spherical surfaces and can be around first axle
The bulb of line and second axis rotation, limits the position limiting structure that the bulb is rotated around the third axis；
Wherein, the centerline collineation of the third axis and the spherical groove depth direction, the first axle, described
Two axis and the third axis intersect vertically two-by-two, and the centre of sphere of the excessively described bulb of intersection point.
Preferably, the position limiting structure includes: locating part, is set to the pedestal and for limiting the locating part around institute
State the limiting slot of third axis rotation；
Wherein, the bulb is rotatably arranged on the locating part or the bulb and the locating part stationary phase
Even, the limiting slot, which has, allows bit space around what the second axis rotated for the locating part, the first axle and described
The axis collinear of locating part.
Preferably, the two sides of the bulb are arranged in through the bulb or the locating part for the locating part.
Preferably, the end face of the locating part is spherical surface.
Preferably, the pedestal include at least two be fixedly linked divide seat, and be set in the position limiting structure described
Structure on pedestal divides seat to dock as described at least two.
Preferably, the interface of described point of seat is step surface.
Preferably, the pedestal is elastic base, and the pedestal is an integral structure.
Preferably, the bulb is provided with interconnecting piece far from one end of the pedestal, and the interconnecting piece is rotational symmetry shape
Structure.
Preferably, the pedestal is positive polygonized structure.
Preferably, the bulb is antifriction metal (AFM) part or the plastic part with self-lubrication, and the pedestal is antifriction metal (AFM)
Part or plastic part with self-lubrication.
In spherical hinge provided by the invention, the spherical groove mating spherical surfaces of bulb and pedestal enable bulb around first axle
Line and second axis rotation, while being rotated using position limiting structure limitation bulb around third axis, it ensure that bulb is only capable of around first
Axis and second axis rotation, wherein first axle, second axis and third axis intersect vertically two-by-two and intersection point crosses bulb
The centre of sphere rotates to realize around two axis to intersect vertically；Meanwhile the spherical groove mating spherical surfaces of bulb and pedestal, the two
Contact area is larger, is compared compared with the prior art using cross kinematic pair, effectively increases bearing capacity.
Meanwhile in spherical hinge provided by the invention, two in the mating spherical surfaces ratio of precision cross kinematic pair of bulb and spherical groove
The cooperation precision of grade axis is higher；Moreover, the number of parts of above-mentioned spherical hinge is also less, reduce costs.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of spherical hinge provided in an embodiment of the present invention；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the B-B direction cross-sectional view of Fig. 1；
Fig. 4 is the axonometric drawing of spherical hinge provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs 1-4, a kind of spherical hinge provided in an embodiment of the present invention characterized by comprising be provided with spherical groove
Pedestal limit bulb 1 around third with spherical groove mating spherical surfaces and the bulb 1 that can rotate around first axle and second axis
The position limiting structure of axis rotation；Wherein, the centerline collineation of third axis and spherical groove depth direction, first axle, the second axis
Line and third axis intersect vertically two-by-two, and intersection point crosses the centre of sphere of bulb 1.
Specifically, as shown in figure 4, straight line L1As first axle, straight line L2As second axis, straight line L3As third
Axis.
In spherical hinge provided in an embodiment of the present invention, the spherical groove mating spherical surfaces of bulb 1 and pedestal enable bulb 1
It rotates around first axle and second axis, while being rotated using position limiting structure limitation bulb 1 around third axis, ensure that bulb 1
It is only capable of rotating around first axle and second axis, wherein first axle, second axis and third axis intersect vertically and hand over two-by-two
The centre of sphere of bulb 1 was put, was rotated to realize around two axis to intersect vertically；Meanwhile the spherical groove spherical surface of bulb 1 and pedestal
Cooperation, the contact area of the two is larger, is compared compared with the prior art using cross kinematic pair, effectively increases bearing capacity.
Meanwhile in spherical hinge provided in an embodiment of the present invention, the mating spherical surfaces ratio of precision cross of bulb 1 and spherical groove is moved
The cooperation precision of two-stage axis is higher in pair；Moreover, the number of parts of above-mentioned spherical hinge is also less, reduce costs.
In above-mentioned spherical hinge, for the specific structure of position limiting structure, it is designed according to actual needs.Preferably, above-mentioned
Position limiting structure includes: locating part 4, is set to pedestal and for limiting the limiting slot 5 that locating part 4 is rotated around third axis；Wherein,
Bulb 1 is rotatably arranged on locating part 4 or bulb 1 is fixedly linked with locating part 4, limiting slot 5 have for locating part 4 around
Second axis rotation allows bit space, the axis collinear of first axle and locating part 4.
Certainly, also the position of interchangeable locating part 4 and limiting slot 5, i.e. locating part 4 are set on the base, and limiting slot 5 is arranged
On bulb 1, it is not limited to above-described embodiment.
When bulb 1 is rotatably arranged on locating part 4, the circular in cross-section of locating part 4 is preferably selected, to guarantee ball
First 1 rotates around first axle.
When bulb 1 and locating part 4 are fixedly linked, it can also be one that bulb 1 and locating part 4, which can be two individual components,
Body formula structure, it is not limited in the embodiment of the present invention.
In order to guarantee bulb 1 in the stability in first axle rotation process, above-mentioned locating part 4 runs through bulb 1, or limit
The two sides of bulb 1 are arranged in position part 4.
Certainly, the side that locating part 4 is only located at bulb 1 also may be selected, it is not limited to above-described embodiment.
It is rotated for the ease of bulb 1 around second axis, the end face of above-mentioned locating part 4 is spherical surface.Certainly, it also may be selected above-mentioned
The end face of locating part 4 is cambered surface or other faces, it is not limited to this.
In above-mentioned spherical hinge, the part-structure of position limiting structure is set on the base, and another part structure of position limiting structure is set
It sets on bulb 1.Therefore, the presence of position limiting structure will affect the assembly of pedestal and bulb 1, and assembly difficulty is caused to increase.In order to
Convenient for assembly, reduce assembly difficulty, above-mentioned pedestal include at least two be fixedly linked divide seat, and bottom is set in position limiting structure
Structure on seat is docked by least two points of seats.Specifically, when the limiting slot 5 in position limiting structure is set on the base,
Then limiting slot 5 is docked by least two points of seats.
For dividing the number of seat, can be selected according to actual needs.In order to reduce components, above-mentioned point of seat is preferentially selected
It is two, respectively first point of seat 2 and second point of seat 3, limiting slot 5 is docked by first point of seat 2 and second point of seat 3, such as Fig. 2
It is shown.
Specifically, first point of seat 2 and second point of seat 3 can be docked along second axis, as shown in figure 4, at this point, pedestal is by first
Plane determined by axis and third axis is divided into first point of seat 2 and second point of seat 3；First point of seat 2 and second point of seat 3 can also edges
Third axis docking, at this point, pedestal plane determined by first axle and second axis is divided into first point of seat 2 and second point of seat
3。
In above-mentioned pedestal, point seat also may be selected and docked along other directions, it is not limited to above-described embodiment.
For the ease of installation and removal, two points of adjacent seats are preferentially selected to be removably secured connected such as adjacent
Two points of seats be connected through a screw thread part realization be removably secured it is connected.
The interface of above-mentioned point of seat can be plane, cambered surface or step surface etc..Divide seat for the ease of docking, preferentially selects above-mentioned
The interface for dividing seat is step surface, as shown in Figure 3.
Reducing assembly difficulty can also realize by other means, for example, above-mentioned pedestal is elastic base, at this point, may be selected
Pedestal is an integral structure.
In above-mentioned spherical hinge, the needs of bulb 1 are connected with device engaged therewith, to realize transmission.Specifically, bulb 1 is remote
One end from pedestal is provided with interconnecting piece 11.For the ease of connecting and using, above-mentioned interconnecting piece 11 is rotational symmetry structure, such as
Regular polygon structure, hub-and-spoke configuration or gear shape structure etc..Specifically, when interconnecting piece 11 is in regular polygon, for example, interconnecting piece
11 in regular hexagon or octagon etc..In this way, it can be achieved that multi-angle is installed.
In above-mentioned spherical hinge, above-mentioned pedestal needs are fixed.Preferably, above-mentioned pedestal is positive polygonized structure, connection
Portion 11 is in regular quadrangle, regular pentagon, regular hexagon or octagon etc..In this way, it can be achieved that polygonal positioning or circumferencial direction
Upper porous positioning, to facilitate positioning.
For the material of above-mentioned bulb 1 and pedestal, can be selected according to actual needs.In order to improve service life, drop
Low rotary resistance, above-mentioned bulb 1 are antifriction metal (AFM) part or the plastic part with self-lubrication.Above-mentioned bulb 1 is oil containing powder smelting
Golden part.
Correspondingly, above-mentioned pedestal is antifriction metal (AFM) part or the plastic part with self-lubrication.Further, above-mentioned pedestal is
Oil containing powder metallurgy part.
Certainly, above-mentioned bulb 1 also may be selected and pedestal is other materials, it is not limited to above-described embodiment.
There are two freedom degrees for above-mentioned spherical hinge tool, specifically, can around first axle and the second axis rotation to intersect vertically
Suitable for any occasion for only needing above-mentioned two freedom degree, the embodiment of the present invention is to spherical hinge using without limitation.
The foregoing description of the disclosed embodiments can be realized those skilled in the art or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910312773.6A CN109899378A (en) | 2019-04-18 | 2019-04-18 | A kind of spherical hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910312773.6A CN109899378A (en) | 2019-04-18 | 2019-04-18 | A kind of spherical hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109899378A true CN109899378A (en) | 2019-06-18 |
Family
ID=66955023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910312773.6A Pending CN109899378A (en) | 2019-04-18 | 2019-04-18 | A kind of spherical hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109899378A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US700369A (en) * | 1901-07-29 | 1902-05-20 | Albert A Pixley | Universal joint. |
| US956912A (en) * | 1910-05-03 | Mechanical Devices Company | Flexible shaft-coupling. | |
| US1447934A (en) * | 1920-04-22 | 1923-03-06 | George W Neff | Universal joint |
| DE10352242A1 (en) * | 2002-11-21 | 2004-06-03 | Maegdefrau, Peter, Dipl.-Wirtsch.-Ing. (FH) | Shaft joint for transmission of rotation between elements of a model vehicle comprises a ball consisting of at least two sections with driving pins, and a socket consisting of at least two sections |
| EP2014940A1 (en) * | 2007-06-13 | 2009-01-14 | Lutz Karrenberg | Compact joint |
| CN210153083U (en) * | 2019-04-18 | 2020-03-17 | 北京因时机器人科技有限公司 | Ball hinge |
-
2019
- 2019-04-18 CN CN201910312773.6A patent/CN109899378A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US956912A (en) * | 1910-05-03 | Mechanical Devices Company | Flexible shaft-coupling. | |
| US700369A (en) * | 1901-07-29 | 1902-05-20 | Albert A Pixley | Universal joint. |
| US1447934A (en) * | 1920-04-22 | 1923-03-06 | George W Neff | Universal joint |
| DE10352242A1 (en) * | 2002-11-21 | 2004-06-03 | Maegdefrau, Peter, Dipl.-Wirtsch.-Ing. (FH) | Shaft joint for transmission of rotation between elements of a model vehicle comprises a ball consisting of at least two sections with driving pins, and a socket consisting of at least two sections |
| EP2014940A1 (en) * | 2007-06-13 | 2009-01-14 | Lutz Karrenberg | Compact joint |
| CN210153083U (en) * | 2019-04-18 | 2020-03-17 | 北京因时机器人科技有限公司 | Ball hinge |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |