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Cantilever part with mounting plate for mechanical experiment

A technology for mechanical experiments and mounting boards, which is applied to educational appliances, teaching models, instruments, etc., can solve the problems of inconvenient movement of cantilever beams, and achieve the effect of stable boundary conditions and elimination of deformation

Inactive Publication Date: 2008-07-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a cantilever beam component with a mounting plate for mechanical experiments, which solves the problem that the cantilever beam is inconvenient to move

Method used

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  • Cantilever part with mounting plate for mechanical experiment
  • Cantilever part with mounting plate for mechanical experiment
  • Cantilever part with mounting plate for mechanical experiment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0005] Implementation mode one: (see figure 1 ) This embodiment consists of a beam 1 and a mounting plate 2, the axis of the beam 1 is perpendicular to the surface of the mounting plate 2, and the right end of the beam 1 is welded together with the middle part of the surface of the mounting plate 2; the beam 1 is an equal section Beam, its cross-sectional shape is rectangular, the board shape of mounting plate 2 is square, has four mounting through holes 2-1 on the plate face of mounting plate 2, and the shape of mounting through hole 2-1 is circular, four The installation through-holes 2-1 are evenly distributed on the circumference concentric with the center of the cross-section of the beam 1.

specific Embodiment approach 2

[0006] Specific implementation mode two: (see figure 2 ) The difference between this embodiment and the specific embodiment one is that the beam 1 is a hollow tube type equal-section beam, and its cross-sectional shape is elliptical; the shape of the mounting plate 2 is circular, and the mounting plate The shape of the hole 2-1 is an arc groove shape, and four arc groove-shaped installation through holes 2-1 are evenly distributed on the circumference concentric with the center of the cross section of the beam 1. Other compositions and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0007] Specific implementation mode three: (see image 3 ) The difference between this embodiment and specific embodiments 1 and 2 is that the beam 1 is a variable-section beam, and the mounting plate 2 has eight installation through holes 2-1 evenly distributed across the beam 1 On a circle concentric with the center of the section. Other compositions and connections are the same as those in Embodiments 1 and 2.

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PUM

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Abstract

The invention is a cantilever component with an installation board for mechanical experiment. The invention solves the problem of a cantilever being inconvenient to move. The invention is composed of a beam and an installation board, where one end of the beam is fixed with the installation board, the axis of the beam is vertical to the surface of the installation board, the installation board is made with installing through holes (round or circular-grooved); the invention is connected with a wall or base with enough quality by fastening pieces passing through the installing through holes, which composes a fixed or movable cantilever component. The number of the installing through holes is determined by the need and they are distributed on one circumference so as to adjust the installing direction of the invention relative to the wall or base. Because the size and quality of the installation board are not large, it is convenient to design, manufacture and sell in batches. The mechanical parameters of the invention (inherent frequency and vibrating type of horizontal vibration, etc) can not change with the installation and adjustment.

Description

Technical field: [0001] The invention relates to a cantilever beam component used in mechanical experiments. Background technique: [0002] The cantilever beam is an experimental device for mechanics teaching and scientific research. At present, the cantilever beam that people are familiar with is that one end of the beam is directly inserted into the wall and fixed to form a fixed end constraint, and an immovable cantilever beam is obtained ("Theoretical Mechanics (Fourth Edition)" edited by the Theoretical Mechanics Teaching and Research Office of Harbin Institute of Technology Higher Education Publishing House, November 1981); the beam can also be directly welded or pressed on a base with a larger mass with a pressure plate to form a movable cantilever beam. These cantilever beams have the problem of being inconvenient to move: the cantilever beam fixed at one end on the wall cannot be moved, and the cantilever beam fixed on a large mass base is also inconvenient to move...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/08
Inventor 陈明赵树山严勇
Owner HARBIN INST OF TECH