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Twist-free compound pendulum with double rows of holes

A technology with double rows of holes and round holes, which is applied in the field of physical experiments and can solve the problems of poor contact durability of the knife edge

Inactive Publication Date: 2014-01-08
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of easy twisting in double cycloid contact and poor durability of knife-edge contact, the present invention adopts double-point contact between the pendulum rod and the hanging rod

Method used

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  • Twist-free compound pendulum with double rows of holes
  • Twist-free compound pendulum with double rows of holes
  • Twist-free compound pendulum with double rows of holes

Examples

Experimental program
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Embodiment Construction

[0010] Fork 1 is thicker iron metal or aluminum alloy with a hardness of 1mm, width 15mm, and length 500mm. Two rows of suspension holes 2 are symmetrically designed on the fork 1. The suspension holes are round holes with a diameter of 5mm and an interval of 10mm.

[0011] The hanging rod is composed of left and right hanging rods. The left hanging rod 3 is a harder iron or aluminum alloy empty pipe with an outer diameter of 4mm and an inner diameter of 3mm. The right hanging rod 5 is a harder iron or aluminum tube with an outer diameter close to 3mm. Alloy solid tube, the right hanging rod 5 can be embedded in the left hanging rod 3, and then drill four through holes with a diameter of 1mm, insert the swing rod 1 into the left hanging rod 3, insert the right hanging rod 5, and align the through holes , insert the latch 4 to fix the left and right hanging rods, and make the swing rod between the two latches.

[0012] Hanging bar is hung in the semicircular concave nest 6 of s...

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Abstract

The invention discloses a twist-free compound pendulum with double rows of holes and relates to the field of physical experiments, in particular to the twist-free compound pendulums. An oscillating bar and a hanging rod in the compound pendulum in the physics laboratory of college are generally in line contact and are frequently twisted. The oscillating bar and the hanging rod of an existing are in cutter point contact, and the major disadvantage is that the oscillating bar is poor in durability. The technical scheme of the twist-free compound pendulum is that two rows of hanging holes are symmetrically designed on the oscillating bar of the compound pendulum, and every time, two holes at the same height are inserted into the hanging rod, and then, the hanging rod is hung on a bracket for swinging. The twist-free compound pendulum with double rows of holes has the beneficial effect that due to the double-point touch rather than the line touch, the compound pendulum is free of twist.

Description

technical field [0001] The invention relates to the field of physical experiments, in particular to a twist-free compound pendulum. Background technique [0002] The pendulum and the hanging rod of the compound pendulum in the university physics laboratory are generally in line contact, and twisting often occurs due to the unevenness of the hanging rod. There is also a compound pendulum pendulum designed to form a knife edge through conical reaming, and the knife edge forms a point contact with the hanging rod. The main disadvantage is that to truly form a point contact, the knife edge should be very sharp. If the knife edge is very sharp, it will damage the hanging rod and the knife edge. By itself, the durability of the pendulum will be greatly affected. Contents of the invention [0003] In order to overcome the shortcoming that the complex cycloid contact is easy to twist and the durability of the knife-edge contact is poor, the present invention makes the swing rod a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/10
Inventor 胡再国饶大庆王维果
Owner SICHUAN UNIV
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