CN109555948B - Three-dimensional rotating ball pair mechanism capable of realizing free adjustment - Google Patents
Three-dimensional rotating ball pair mechanism capable of realizing free adjustment Download PDFInfo
- Publication number
- CN109555948B CN109555948B CN201811539070.9A CN201811539070A CN109555948B CN 109555948 B CN109555948 B CN 109555948B CN 201811539070 A CN201811539070 A CN 201811539070A CN 109555948 B CN109555948 B CN 109555948B
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- China
- Prior art keywords
- ball pair
- pair body
- cylindrical
- sliding groove
- rod
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
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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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0604—Construction of the male part
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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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
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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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0685—Manufacture of ball-joints and parts thereof, e.g. assembly of ball-joints
- F16C11/069—Manufacture of ball-joints and parts thereof, e.g. assembly of ball-joints with at least one separate part to retain the ball member in the socket; Quick-release systems
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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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
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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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
- G03B17/561—Support related camera accessories
Abstract
The invention relates to a three-dimensional rotating ball pair mechanism capable of realizing free adjustment, which comprises a ball pair body and a base, wherein the bottom of the ball pair body is provided with a top, the top is in point contact with the base, the upper end of the ball pair body is provided with a connecting rod group, the connecting rod group comprises a vertical rod and a horizontal rod, the top end of the vertical rod is fixedly connected with the midpoint of the horizontal rod, one end of the vertical rod is positioned in the ball pair body and is collinear with the vertical central line of the ball pair body, the horizontal rod is positioned in the ball pair body, the outer wall surface of the lower side of the ball pair body is provided with a first sliding groove and a second sliding groove, the base is fixedly provided with two first cylindrical bolts and two second cylindrical bolts, one end of each first cylindrical bolt is positioned in the first sliding groove, and one end of each second cylindrical bolt is positioned in the second sliding groove. The mechanism has the advantages of simple structure, capability of effectively reducing the degree of freedom of the overall movement of the mechanism and reducing the uncertainty of the movement of the mechanism.
Description
Technical Field
The invention relates to a three-dimensional rotating ball pair mechanism capable of realizing free adjustment.
Background
Currently, a ball pair mechanism is an important structure for realizing a three-dimensional rotation function, however, most ball pair mechanisms have the problem that the degree of freedom and the movement direction are unbalanced, so that the mechanism movement is not coordinated, and the requirement of realizing continuous and rapid rotation and direction change cannot be met. The spherical pair structure widely applied to the tripod head structure of the photography has the most representative characteristic, and two structures capable of realizing three-dimensional rotation on a three-dimensional and spherical tripod head are taken as examples.
(1) Three-dimensional cloud platform.
The three-dimensional tripod head respectively adjusts the directions of the water surface and the pitching surface by two nodes of a handle around the cross direction. When the three-dimensional tripod head needs to continuously and rapidly rotate and change the direction, the degree of freedom is small due to too much constraint, so that the rotation is not flexible.
(2) Spherical cloud platform.
The spherical holder is adjusted in such a way that the spherical pair body can deflect freely within 360 degrees in the whole circumferential range, when the spherical holder needs to rotate continuously and rapidly to change the direction, the core structure for controlling the direction is a sphere, and a high pair structure is formed between the spherical pair body and the shell of the spherical pair body, so that the degree of freedom is high due to less constraint, and the spherical pair body does not have movement in a determined direction.
Disclosure of Invention
The invention provides a three-dimensional rotating ball pair mechanism capable of realizing free adjustment, aiming at solving the problem that the three-dimensional rotating mechanism has unbalance of the degree of freedom and the moving direction.
In order to realize the purpose, the invention adopts the technical scheme that: the three-dimensional rotating ball pair mechanism capable of achieving free adjustment comprises a ball pair body and a base, wherein a top is arranged at the bottom of the ball pair body and is in point contact with the base, a connecting rod group is installed at the upper end of the ball pair body and comprises a vertical rod and a horizontal rod, the top end of the vertical rod is fixedly connected with the middle point of the horizontal rod, one end of the vertical rod is located in the ball pair body and is collinear with the vertical central line of the ball pair body, the horizontal rod is located in the ball pair body, a first sliding groove and a second sliding groove are formed in the outer wall surface of the lower side of the ball pair body, two first cylindrical bolts and two second cylindrical bolts are fixedly installed on the base, one end of each first cylindrical bolt is located in the first sliding groove, and one end of each second cylindrical bolt is located in the second sliding groove.
In the above scheme, the axes of the two first cylindrical pins are collinear, and the axes of the two second cylindrical pins are collinear.
In the above scheme, the vertical rod and the horizontal rod are in clearance fit with the ball pair body.
In the above scheme, the projections of the horizontal rod, the first cylindrical bolt and the second cylindrical bolt on the vertical plane form a stable triangle.
In the scheme, the connecting clamp is installed at the other end of the vertical rod.
The invention has the beneficial effects that: (1) the three-dimensional rotating ball pair mechanism has a simple structure, and can reduce the degree of freedom of the overall movement of the mechanism and reduce the uncertainty of the movement of the mechanism on the premise of ensuring the three-dimensional rotating function. (2) The mechanism can be independently used as a movable component capable of realizing three-dimensional rotation, and can be matched with a motor and the like to be arranged at a position where three-dimensional rotation (such as a joint of a robot, a radar rotating joint and the like) is required to be realized.
Drawings
Fig. 1 is a schematic view of the internal structure assembly of the mechanism of the invention.
Fig. 2 is a left external view of the mechanism of the present invention.
In the figure: 1. a connecting clip; 2. a linkage; 2-1, vertical rods; 2-2, horizontal rods; 3. a ball body; 3-1, a first chute; 3-2, a second chute; 5. A base; 5-1, a first cylindrical bolt; 5-2, a second cylindrical bolt; 6. and (4) a tip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The three-dimensional structure schematic diagram of the mechanism related to the invention is shown in fig. 1 and fig. 2, and comprises a ball pair body 3 and a base 5, wherein the bottom of the ball pair body 3 is provided with a tip 6, the tip 6 is in point contact with the base 5, and the main body of the mechanism is a ball pair structure with the degree of freedom of 3 formed between the ball pair body 3 and the base 5. The ball pair body 3 is characterized in that a first sliding groove 3-1 and a second sliding groove 3-2 are formed in the outer wall surface of the lower side of the ball pair body 3, two first cylindrical bolts 5-1 and two second cylindrical bolts 5-2 are fixedly mounted on the base 5, one end of each first cylindrical bolt 5-1 is located in the first sliding groove 3-1, one end of each second cylindrical bolt 5-2 is located in the second sliding groove 3-2, the ball pair body 3 is connected with the base 5 through the first cylindrical bolts 5-1 and the second cylindrical bolts 5-2, the degree of freedom of a structure formed by the ball pair body 3, the first cylindrical bolts 5-1, the second cylindrical bolts 5-2 and the base 5 is reduced to 2, and the rotation of the ball pair body 3 around other shafts is restrained, so that the ball pair body 3 is enabled to only rotate around a vertical shaft. Simultaneously, the first half of this mechanism forms a degree of freedom for the revolute pair structure of 2 with the cooperation of "notch" shape linkage 2 and ball pair body 3, similar hinge effect to guarantee that this linkage 2 can only do the back and forth swing action in ball pair body 3.
Specifically, "the notch" shape linkage 2 links to each other with the foreign object through coupling clip 1, "the notch" shape linkage 2 includes vertical pole 2-1 and horizontal pole 2-2, vertical pole 2-1 with the mid point fixed connection of horizontal pole 2-2, vertical pole 2-1 one end is located in the ball pair body 3, and with the vertical central line collineation of ball pair body 3, horizontal pole 2-2 is located in the ball pair body 3, vertical pole 2-1 and horizontal pole 2-2 all with ball pair body 3 clearance fit, when needs take place to turn to the effect, external force transmits to "tie" shape linkage 2 through coupling clip 1 on, drives "the shape linkage 2 and does preceding back swing action at ball pair body 3, and the transmission of warp power simultaneously," the vertical axle "shape linkage 2 becomes the driving part by the follower, drives ball pair body 3 and realizes around 2-1's rotary motion in base 5, by means of the superposition effect of the forward and backward swinging action of the notch-shaped connecting rod group 2 and the rotating action of the ball pair body 3 around the vertical shaft 2-1, the mechanism connecting clamp 1 reaches an ideal action position, and the purpose of free adjustment is achieved. The first cylindrical bolt 5-1 and the second cylindrical bolt 5-2 limit the rotary motion of the ball pair body 3 around any other axis through the cooperation of the first sliding groove 3-1 and the second sliding groove 3-2 (see figure 2) arranged on the outer wall surface of the lower side of the ball pair body 3; the top 6 at the bottom of the ball pair body 3 enables the ball pair body 3 to have a gyro effect when doing rotary motion in the base 5, and can effectively ensure that the rotation axis of the ball pair body 3 is not easy to deviate from a vertical axis when doing rotary motion around the vertical axis.
FIG. 2 is a left side view of the mechanism of the present invention, wherein two parallel first sliding grooves 3-1 and second sliding grooves 3-2 are formed at the lower part of the ball pair body 3, so that the first cylindrical bolt 5-1 and the second cylindrical bolt 5-2 can move freely in the corresponding first sliding groove 3-1 and second sliding groove 3-2; a through hole is arranged at the upper part of the connecting rod group 2, so that the vertical rod 2-1 of the 'notch' shaped connecting rod group 2 can be arranged in the through hole and can flexibly move; the axes of the two first cylindrical pins 5-1 are collinear, the axes of the two second cylindrical pins 5-2 are collinear, and the projections of the horizontal rod 2-2, the first cylindrical pins 5-1 and the second cylindrical pins 5-2 on a vertical surface form a stable triangle, so that the stability of the structure is enhanced. The mechanism mainly realizes the free adjustment of the integral three-dimensional rotary motion of the mechanism by the back-and-forth swing of the 'notch' -shaped connecting rod group 2 in the ball pair body 3 and the combination of the 360-degree rotary motion of the ball pair body 3 around the vertical shaft in the base 5.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (3)
1. The three-dimensional rotating ball pair mechanism capable of realizing free adjustment is characterized by comprising a ball pair body (3) and a base (5), wherein a tip (6) is arranged at the bottom of the ball pair body (3), the tip (6) is in point contact with the base (5), a connecting rod set (2) is installed at the upper end of the ball pair body (3), the connecting rod set (2) comprises a vertical rod (2-1) and a horizontal rod (2-2), the top end of the vertical rod (2-1) is fixedly connected with the midpoint of the horizontal rod (2-2), one end of the vertical rod (2-1) is located in the ball pair body (3) and is collinear with the vertical central line of the ball pair body (3), the horizontal rod (2-2) is located in the ball pair body (3), a first sliding groove (3-1) and a second sliding groove (3-2) are arranged on the outer side wall of the lower side of the ball pair body (3), two first cylindrical bolts (5-1) and two second cylindrical bolts (5-2) are fixedly mounted on the base (5), one end of each first cylindrical bolt (5-1) is positioned in the first sliding groove (3-1), and one end of each second cylindrical bolt (5-2) is positioned in the second sliding groove (3-2);
the axes of the two first cylindrical pins (5-1) are collinear, and the axes of the two second cylindrical pins (5-2) are collinear; the projections of the horizontal rod (2-2), the first cylindrical bolt (5-1) and the second cylindrical bolt (5-2) on a vertical plane form a stable triangle.
2. The mechanism of the freely adjustable three-dimensional rotary ball pair is characterized in that the vertical rod (2-1) and the horizontal rod (2-2) are in clearance fit with the ball pair body (3).
3. The three-dimensional rotating ball pair mechanism capable of realizing free adjustment according to claim 1, characterized in that the other end of the vertical rod (2-1) is provided with a connecting clamp (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539070.9A CN109555948B (en) | 2018-12-17 | 2018-12-17 | Three-dimensional rotating ball pair mechanism capable of realizing free adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539070.9A CN109555948B (en) | 2018-12-17 | 2018-12-17 | Three-dimensional rotating ball pair mechanism capable of realizing free adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109555948A CN109555948A (en) | 2019-04-02 |
| CN109555948B true CN109555948B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539070.9A Active CN109555948B (en) | 2018-12-17 | 2018-12-17 | Three-dimensional rotating ball pair mechanism capable of realizing free adjustment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503463B (en) * | 2020-05-07 | 2021-10-08 | 深圳申鲲科技有限公司 | Fixing device for projector capable of automatically adjusting to be horizontal |
| CN116123414B (en) * | 2023-04-19 | 2023-06-23 | 滕州市测绘院 | Survey and drawing level instrument convenient to adjust |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6915996B2 (en) * | 2003-12-11 | 2005-07-12 | Chin-Chih Lin | Pivotal shaft assembly for plane displays |
| TW201144652A (en) * | 2010-06-11 | 2011-12-16 | Chin-Hui Liao | Universal holder |
| CN204358365U (en) * | 2014-12-30 | 2015-05-27 | 浙江大华技术股份有限公司 | A kind of camera mount |
| CN207673708U (en) * | 2017-12-16 | 2018-07-31 | 台州万洲机械有限公司 | A kind of ball stud |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020109053A1 (en) * | 2001-02-11 | 2002-08-15 | Lemieux Frank Robert | Nonslip surface for camera tripod panheads |
-
2018
- 2018-12-17 CN CN201811539070.9A patent/CN109555948B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6915996B2 (en) * | 2003-12-11 | 2005-07-12 | Chin-Chih Lin | Pivotal shaft assembly for plane displays |
| TW201144652A (en) * | 2010-06-11 | 2011-12-16 | Chin-Hui Liao | Universal holder |
| CN204358365U (en) * | 2014-12-30 | 2015-05-27 | 浙江大华技术股份有限公司 | A kind of camera mount |
| CN207673708U (en) * | 2017-12-16 | 2018-07-31 | 台州万洲机械有限公司 | A kind of ball stud |
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| Publication number | Publication date |
|---|---|
| CN109555948A (en) | 2019-04-02 |
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