Wriggle-free compound pendulum consisting of metal ring and strip clamp slot

A technology of metal rings and bar cards, which is applied in the field of compound pendulum, can solve the problems of complex pendulum pendulum easy to twist, knife edge damage, long time, etc., and achieve the effect of improving durability and avoiding twisting

Inactive Publication Date: 2012-08-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the pendant pendant is in line contact with the pendant. Due to the unevenness of the pendant, the pendant pendant is prone to twisting, and it takes a long time to adjust the level of the pendant. There are patents that use knife-edge contact. The knife-ed

Method used

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  • Wriggle-free compound pendulum consisting of metal ring and strip clamp slot
  • Wriggle-free compound pendulum consisting of metal ring and strip clamp slot

Examples

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Embodiment Construction

[0008] There are two card slots, the width of the card slot is 3mm, and the depth of the slot body is 2mm. The card slot has through holes 3 at equal distances. The diameter of the through hole is 2mm. The through hole is located in the middle of the card slot in the left and right directions. The distance between the through holes is 10mm.

[0009] The swing rod 1 of the complex pendulum is composed of 99 metal rings with a diameter of 10mm. The metal rings are made of stainless steel or high-hardness aluminum alloy. The cross section of the ring is a circle with a diameter of 2mm. Clamp 99 rings with card slots to ensure that all rings are in close contact, and the connection lines of the contact points between all rings pass through the center of each ring, and the card slots on the left and right sides have equidistant through holes 3 , the metal ring can be seen at the position of the through hole, and the metal ring is welded in the card slots on the left and right sides...

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PUM

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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 [0001] The invention relates to the field of compound pendulums, in particular to the manufacture of swing rods for non-twisting compound pendulums used in the experiment of measuring the acceleration of gravity with compound pendulums. Background technique [0002] Most of the pendant pendant is in line contact with the pendant. Due to the unevenness of the pendant, the pendant pendant is prone to twisting, and it takes a long time to adjust the level of the pendant. There are patents that use knife-edge contact. The knife-edge is point contact, which can Effectively avoid twisting, but the sharper the knife edge is, the closer it is to point contact, and the sharper the knife edge will damage the pendant, and the knife edge itself will gradually wear out, making the pendant and the swing bar less durable. Contents of the invention [0003] In order to overcome the deficiencies of the ordinary compound pendulum being easy to twist and the knife-edge contac...

Claims

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Application Information

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IPC IPC(8): G01V7/12
Inventor 穆万军胡再国
Owner SICHUAN UNIV
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