CN102108817B - Simple hooke hinge - Google Patents
Simple hooke hinge Download PDFInfo
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- CN102108817B CN102108817B CN201110040186XA CN201110040186A CN102108817B CN 102108817 B CN102108817 B CN 102108817B CN 201110040186X A CN201110040186X A CN 201110040186XA CN 201110040186 A CN201110040186 A CN 201110040186A CN 102108817 B CN102108817 B CN 102108817B
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- steel ball
- shaped hinge
- support arm
- circular
- screw
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
A simple Hooke hinge comprises two U-shaped hinge seats, four set screws, four supporting arms, a steel ball and four pressing rings, wherein two ends of each U-shaped hinge seat are provided with opposite and coaxial circular through holes, a screw hole is formed in the position perpendicular to the circular through holes, one end of each supporting arm is a cylinder, the other end of each supporting arm is provided with a circular concave hole, the cylinders of the four supporting arms are respectively embedded in the circular through holes of the two U-shaped hinge seats, and the steel ball is embedded in the circular concave holes of the four supporting arms; the fastening screw is screwed into the screw hole of the U-shaped hinge seat and is matched with the pressing ring to fix the supporting arm, so that the supporting arm and the steel ball form a flexible rotating whole taking the steel ball as a rotating center. The invention has the advantages of simple structure, convenient processing and assembly, no transmission clearance, larger rotation angle, higher rotation precision and three rotational degrees of freedom. Is particularly suitable for multi-degree-of-freedom parallel positioning platforms.
Description
Technical field
The hook hinge that the present invention relates to, particularly a kind of Simple hook hinge, be applicable to the multi-freedom parallel connection locating platform.
Background technology
Hook hinge is used for the transmission of motion process diaxon power, and has certain supporting role.Its structure adopts cross axle usually, and four ends of cross axle are installed rolling bearing, by the gland on hinge seat, eliminate bearing axial clearance, and its structure as shown in Figure 2.At present precision optical machinery field, particularly multi-freedom parallel connection locating platform, need that precision is high, rotating range large, the hook hinge of compact conformation.Existing multiple hook hinge, have the back shaft of a cross axle or similar cross mostly on structure, its complex structural designs, process more difficult, operation is many, has caused the reduction of precision and the increase of cost; Adopt bearing to be used for rotating, can not eliminate the radial clearance in transmission, or cause the decentraction of center of rotation, cause the reduction of hook hinge precision; And the most part of these structures is more, requires machining accuracy high, causes size larger, and cost is high, so can not calculate very desirable hook hinge.In addition, existing hook hinge all only has two rotary freedoms, the requirement of three rotary freedoms that the cradle head that also needs a supplementary rotary freedom could meet locating platform in parallel is required.
Summary of the invention
For complexity, the physical dimension of the drawback that solves above-mentioned existing hook hinge, processing and manufacturing is large and the high in cost of production problem, the invention provides a kind of Simple hook hinge, this hinge has three rotary freedoms, and common hinge and other one dimension rotary bodies of having avoided only having two rotary freedoms form the rotation decentraction problem that produces after three degree of freedom jointly.
Technical solution of the present invention is as follows:
A kind of Simple hook hinge, characteristics are that its formation comprises two U-shaped hinge seats, four holding screws, four support arms, a steel ball and four trim rings, the two ends of described U-shaped hinge seat are provided with relative and coaxial manhole, perpendicular to this manhole, screw is arranged, one end of described support arm is cylinder, the other end has a circular shrinkage hole, the cylinder of described four support arms bank respectively is combined in the manhole of described two U-shaped hinge seats, and described steel ball is embedded in the circular shrinkage hole of described four support arms; Described holding screw be screwed in the screw of described U-shaped hinge seat and coordinate trim ring with fixing described support arm, making described support arm and described steel ball form the integral body of rotation flexibly take steel ball as center of rotation.
Described steel ball adopts the higher standard steel ball of precision, and its diameter is greater than the diameter of the circular shrinkage hole of support arm.
The axis of one end cylinder of described support arm and the axis of other end circular shrinkage hole are on the same straight line.
After assembling was completed, described two U-shaped hinge seats formed rigid unitary with two support arms respectively, and rigid unitary is rotated as the center of rotation gapless around straight line, the straight-line pass steel ball centre of sphere.The rotation of two rigid unitary is independently, can reach three rotary freedoms, and center of rotation meets at a bit, and this point is the steel ball centre of sphere.
Technique effect of the present invention is as follows:
1, Simple hook hinge of the present invention, structurally adopt the higher standard steel ball of precision as center of rotation, do not need to process cross axle; Only need to be processed with the U-shaped hinge seat of relative and coaxial manhole, coaxial cylinder and the support arm of circular shrinkage hole, solved precision and Cost Problems that processing produces;
2, the present invention is simple and compact for structure, and required part seldom, needs the complex parts of processing to adopt standard component, rotates gapless, and it is easy to assembly easy to make, and range of movement is larger and precision is higher, has three rotary freedoms.
3, Simple hook hinge of the present invention, when two hinge seats are connected with other mechanisms, just can realize the rotation of three degree of freedom, be suitable for very much the cradle head of multivariant locating platform in parallel, for the wider multidimensional of the high accuracy of this type of platform, regulate assurance is provided.
Description of drawings
Fig. 1 is frame for movement schematic diagram of the present invention, and front view, right view and top plan view are arranged respectively
Fig. 2 is existing conventional hinge arrangement figure, only has two rotary freedoms
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing, but should not limit the scope of the invention with this.
a kind of Simple hook hinge, concrete structure is referring to Fig. 1, as seen from the figure, hook hinge of the present invention, form and comprise lower U-shaped hinge seat 1, upper U-shaped hinge seat 5, four holding screws 2, four support arms 3, a steel ball 4 and four trim rings 6, the two ends of described lower U-shaped hinge seat 1 are provided with relative and coaxial manhole, perpendicular to this manhole, screw is arranged, the two ends of described upper U-shaped hinge seat 5 are provided with the relative manhole in center, perpendicular to this manhole, screw is arranged, described support arm 3 one ends are cylinder, the other end has a circular shrinkage hole, the face of cylinder of described support arm 3 bank respectively is combined in the manhole of described lower U-shaped hinge seat 1 and in the manhole of upper U-shaped hinge seat 5, described steel ball 4 is embedded in the circular shrinkage hole of described four support arms 3, described holding screw 2 be screwed in the screw of described up and down U-shaped hinge seat and coordinate trim ring 6 with fixing described support arm 3, making described support arm 3 and described steel ball 4 form the rotation flexibly take steel ball 4 as center of rotation whole.
One end cylindrical fit of described support arm 3 is in the manhole of U-shaped hinge seat 1 and 5, and gap, interference fits all can; One miniature circular shrinkage pool is arranged in its other end structure, this circular shrinkage hole diameter is less than the diameter of steel ball 4, steel ball 4 is partially submerged in circular shrinkage hole, the contact surface of circular shrinkage hole and steel ball is processed or is squeezed into spherical better by steel ball 4, like this sphere-contact is changed in common line contact, significantly improved supporting capacity.Holding screw 2 is used for tightening and reinforces support arm and its be connected in the end on U-shaped hinge seat 1 and the U-shaped both sides of being connected, screw screw and can eliminate hole axle fit clearance between hinge seat and support arm; Unclamp holding screw 2, can regulate the position of steel ball 4 on two manhole central line of hinge seat, make steel ball be in the central point of structure; Screw trim ring 6 and eliminate the joint gap of support arm 3 and steel ball 4.After assembling was completed, up and down U-shaped hinge seat formed rigid unitary with two support arms respectively, take the steel ball centre of sphere as center of rotation, rotates.
The present invention when practical application, adjusts the parameter such as fit on body diameter, circular shrinkage hole diameter, steel ball size of support arm 3, as required to reach better result of use.Overall structure of the present invention is simple, handling ease, precision is high, cost is low, and slewing area is large, in the precision optical machinery field, has high promotion and use value.
Claims (3)
1. Simple hook hinge, be characterised in that its formation comprises two U-shaped hinge seats, four holding screws, four support arms, a steel ball and four trim rings, the two ends of described U-shaped hinge seat are provided with relative and coaxial manhole, perpendicular to this manhole, screw is arranged, described support arm one end is cylinder, the other end has a circular shrinkage hole, the cylinder of described four support arms bank respectively is combined in the manhole of described two U-shaped hinge seats, and described steel ball is embedded in the circular shrinkage hole of described four support arms; Described holding screw is screwed in the screw of described U-shaped hinge seat and coordinates trim ring with fixing described support arm, make described support arm and described steel ball form the integral body of rotation flexibly take steel ball as center of rotation.
2. a kind of Simple hook hinge according to claim 1, is characterized in that described steel ball adopts the higher standard steel ball of precision, and its diameter is greater than the diameter of the circular shrinkage hole of described support arm.
3. Simple hook hinge according to claim 1, is characterized in that the axis of the axis of an end cylinder of support arm and other end circular shrinkage hole is on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040186XA CN102108817B (en) | 2011-02-18 | 2011-02-18 | Simple hooke hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040186XA CN102108817B (en) | 2011-02-18 | 2011-02-18 | Simple hooke hinge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102108817A CN102108817A (en) | 2011-06-29 |
| CN102108817B true CN102108817B (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110040186XA Expired - Fee Related CN102108817B (en) | 2011-02-18 | 2011-02-18 | Simple hooke hinge |
Country Status (1)
| Country | Link |
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| CN (1) | CN102108817B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664329A (en) * | 2019-01-24 | 2019-04-23 | 中国科学院长春光学精密机械与物理研究所 | A kind of compact high rigidity Hooke's hinge |
| CN110206428B (en) * | 2019-06-05 | 2020-07-24 | 中国科学院长春光学精密机械与物理研究所 | Non-coplanar hinge of pivot and have robot of this hinge |
| CN111270936A (en) * | 2020-01-20 | 2020-06-12 | 中建材创新科技研究院有限公司 | Door body mounting structure of desiccator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511344A (en) * | 1982-10-22 | 1985-04-16 | Uni-Cardan Aktiengesellschaft | Cardan joint |
| CN101770727A (en) * | 2010-01-06 | 2010-07-07 | 华安 | Globe bracket |
-
2011
- 2011-02-18 CN CN201110040186XA patent/CN102108817B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511344A (en) * | 1982-10-22 | 1985-04-16 | Uni-Cardan Aktiengesellschaft | Cardan joint |
| CN101770727A (en) * | 2010-01-06 | 2010-07-07 | 华安 | Globe bracket |
Non-Patent Citations (2)
| Title |
|---|
| 附图1，2. |
| 附图14，15. |
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| Publication number | Publication date |
|---|---|
| CN102108817A (en) | 2011-06-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |