CN102645677B - Wriggle-free compound pendulum consisting of metal ring and strip clamp slot - Google Patents
Wriggle-free compound pendulum consisting of metal ring and strip clamp slot Download PDFInfo
- Publication number
- CN102645677B CN102645677B CN201210146835.9A CN201210146835A CN102645677B CN 102645677 B CN102645677 B CN 102645677B CN 201210146835 A CN201210146835 A CN 201210146835A CN 102645677 B CN102645677 B CN 102645677B
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- compound pendulum
- annulus
- stainless steel
- pendulum
- oscillating bar
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Abstract
A wriggle-free compound pendulum consisting of a metal ring and a strip clamp slot relates to the compound pendulum field and in particular relates to the manufacture of an oscillating bar of a wriggle-free compound pendulum used in an experiment for testing acceleration of gravity with the compound pendulum. Most of the oscillating bars of the compound pendulums and pendants are in line contact, thus twist easily occurs; and in a certain patent, blade contact is adopted, but the pendant and the oscillating bar are poor in durability. In order to overcome the defect that the common compound pendulum is easy to twist and blade contact causes damage easily, the oscillating bar of the compound pendulum is formed by connecting metal rings in the invention. Rings which have 10mm diameters and are made of stainless steel or high-hardness aluminum alloy are drawn close with the head and tail so as to form the oscillating bar of the compound pendulum; the two sides of the rings are clamped through clamp slots made of stainless steel or high-hardness aluminum alloy, and then the rings are fixed in the clamp slots through point welding; the pendent of the compound pendulum is a cylinder which has a 3mm diameter and is made of stainless steel or high-hardness aluminum alloy; the oscillating bar of the compound pendulum can be effectively avoided to twist through point welding; and point contact is adopted instead of blade contact, thus improving the durability of the oscillating bar and the pendent of the compound pendulum.
Description
Technical field
The present invention relates to physical pendulum field, the fork of the twistless compound pendulum particularly using in the acceleration test of physical pendulum measuring gravity is made.
Background technology
Most of physical pendulum forks are that line contacts with suspension member, and out-of-level due to suspension member causes physical pendulum fork easily to occur twisting, regulate the time that the level of suspension member need to be longer; Have patent to adopt edge of a knife contact, the edge of a knife is a contact, can effectively avoid twisting, but the sharper more points of proximity contact of the edge of a knife, sharper, the edge of a knife will damage suspension member, and the edge of a knife itself also can wear and tear gradually, makes the poor durability of suspension member and fork.
Summary of the invention
For overcome common physical pendulum easily twisting contact flimsy deficiency with the edge of a knife, the present invention adopts the metal ring physical pendulum fork that is formed by connecting.
The technical scheme that the present invention solves its technical matters employing is: the metal ring head and the tail of use external diameter 10mm, internal diameter 6mm are drawn close and formed physical pendulum fork, annulus xsect is the circle of a diameter 2mm, material is stainless steel or the aluminium alloy that hardness is larger, block annulus on annulus both sides by the draw-in groove of stainless steel or high hardness aluminium alloy, the draw-in groove on both sides has equidistant diameter 2mm through hole, its distance is the external diameter 10mm of annulus, makes annulus be welded in the draw-in groove of the right and left at lead to the hole site by direct welding.The suspension member of physical pendulum is stainless steel or the high hardness aluminium alloy right cylinder of diameter 3mm.
The invention has the beneficial effects as follows: physical pendulum fork has been realized a little and having been contacted with suspension member, can effectively avoid the twisting of physical pendulum fork; Point contact is not edge of a knife contact, and contact point is not sharp, and pressure can be realized retroaction by small deformation, thereby ensures the peaceful coexistence of fork and suspension member, improves the durability of physical pendulum fork and suspension member.
Brief description of the drawings
Fig. 1 is physical pendulum fork schematic diagram.
Wherein, 1, physical pendulum fork, 2, metal ring, 3, through hole.
Embodiment
There are two draw-in grooves, draw-in groove width 3mm, cell body degree of depth 2mm, draw-in groove has equidistant through hole 3, and the diameter of through hole is 2mm, and in the middle of left and right directions through hole is positioned at draw-in groove, the distance between through hole is 10mm.
The fork 1 of physical pendulum is made up of the metal ring of 99 diameter 10mm, metal ring adopts the aluminium alloy of stainless steel or high rigidity, annulus xsect is the circle of diameter 2mm, for ensureing the symmetry of physical pendulum fork, use draw-in groove to block 99 annulus, ensure all close contacts of all annulus, between all annulus, the line of contact point is all crossed the center of circle of each annulus, the draw-in groove of the right and left has equidistant through hole 3, can see metal ring at lead to the hole site, make metal ring be welded in the draw-in groove of the right and left by direct welding at lead to the hole site, the fork of physical pendulum completes.
The suspension member of physical pendulum is stainless steel or the high hardness aluminium alloy right cylinder of diameter 3mm.
Claims (1)
1. the twistless compound pendulum of metal ring and strip-shaped clamp groove composition, comprise fork and suspension member, it is characterized in that: the metal ring head and the tail of use external diameter 10mm, internal diameter 6mm are drawn close and formed physical pendulum fork, and annulus xsect is the circle of a diameter 2mm, and material is stainless steel or the aluminium alloy that hardness is larger; Block annulus on annulus both sides by the draw-in groove of stainless steel or high hardness aluminium alloy, all annulus all between close contact, all annulus the line of contact point all cross the center of circle of each annulus, the draw-in groove on both sides has equidistant diameter 2mm through hole, its distance is the external diameter 10mm of annulus, makes annulus be welded in the draw-in groove of the right and left at lead to the hole site by direct welding; The suspension member of physical pendulum is stainless steel or the high hardness aluminium alloy right cylinder of diameter 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146835.9A CN102645677B (en) | 2012-05-14 | 2012-05-14 | Wriggle-free compound pendulum consisting of metal ring and strip clamp slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146835.9A CN102645677B (en) | 2012-05-14 | 2012-05-14 | Wriggle-free compound pendulum consisting of metal ring and strip clamp slot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102645677A CN102645677A (en) | 2012-08-22 |
| CN102645677B true CN102645677B (en) | 2014-09-03 |
Family
ID=46658612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210146835.9A Expired - Fee Related CN102645677B (en) | 2012-05-14 | 2012-05-14 | Wriggle-free compound pendulum consisting of metal ring and strip clamp slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102645677B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819978B (en) * | 2012-09-03 | 2014-04-09 | 四川大学 | No-twist compound pendulum consisting of oscillating bar and cylindrical pendant in ring connection |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100492442C (en) * | 2006-11-01 | 2009-05-27 | 四川大学 | Twistless compound pendulum rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011054047A1 (en) * | 2009-11-04 | 2011-05-12 | John Mcmurray Clark | A compound motion structure |
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2012
- 2012-05-14 CN CN201210146835.9A patent/CN102645677B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100492442C (en) * | 2006-11-01 | 2009-05-27 | 四川大学 | Twistless compound pendulum rod |
Non-Patent Citations (2)
| Title |
|---|
| J—LD23型复摆实验的改进;代伟;《计量与测试技术》;20071231;第34卷(第12期);9-11 * |
| 代伟.J—LD23型复摆实验的改进.《计量与测试技术》.2007,第34卷(第12期), |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102645677A (en) | 2012-08-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |