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A kind of impact rebound tester

A tester and scale technology, applied in the direction of testing material hardness, etc., can solve the problems of easy sliding of the pointer, inconvenient reading, easy failure of the locking mechanism, etc., and achieve the effect of convenient zeroing and long service life

Active Publication Date: 2017-08-11
HITACHI ELEVATOR CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanism has the following deficiencies: the pointer is easy to slide when the pendulum strikes two or three times, the locking mechanism is prone to failure under multiple strikes, and because it reads upwards in the circumferential direction, it is not very convenient to read

Method used

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  • A kind of impact rebound tester

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Embodiment

[0021] Such as figure 1 As shown, a kind of impact rebound tester comprises: support 10, scale 9 and pendulum 1; Described support 10 is arranged perpendicular to the horizontal plane and can be installed and fixed by the base 11 below; Described scale 9 is provided with Non-uniformly distributed scales, the scale 9 is horizontally arranged on the support 10, and the scale 9 is also provided with a pointer 8 slidingly connected thereto, and there is a certain friction between the pointer 8 and the scale 9 Coefficient, one end of the scale 9 is also placed with a passive magnet 4, the passive magnet 4 and the pointer 8 are connected by a flexible wire 7; the pendulum 1 includes a hammer head and a connecting rod, and one end of the connecting rod It is hinged with the bracket 10, and the hinge point between the pendulum 1 and the bracket 10 is located above the end of the scale 9 where the passive magnet 4 is placed, and the swing plane of the pendulum 1 is aligned with the sca...

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Abstract

The invention discloses an impact resilience tester, comprising: a bracket, a scale and a pendulum; the scale is horizontally arranged on the bracket, and a pointer slidingly connected thereto is arranged on the scale, There is a certain coefficient of friction between the pointer and the scale, and a passive magnet is placed on one end of the scale, and the passive magnet is connected to the pointer by a flexible wire; one end of the pendulum is connected to the bracket Hinged, and the hinge point of the pendulum and the bracket is located above the end of the scale where the passive magnet is placed, the swing plane of the pendulum is on the same plane as the scale, and the pendulum is also An active magnet corresponding to the position of the passive magnet is provided. The impact rebound tester provided by the invention has the advantages of convenient pointer reset to zero without swinging; the magnet adsorption device has a long service life and no relative friction;

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for detecting the rebound rate of rubber, and it can also be used to detect other materials with rebound properties. Background technique [0002] The rubber impact rebound test instrument is a widely used instrument for testing the rebound rate of rubber. In the existing structure, after the pendulum hits the test object, it swings back at high speed, and the locking mechanism drives the pointer to swing. When the swing is the largest, the pointer is fixed and will not follow the pendulum. impact. This mechanism has the following disadvantages: the pointer is easy to slide when the pendulum strikes two or three times, the locking mechanism is prone to failure under multiple strikes, and because the reading is upward in the circumferential direction, the reading is not very convenient. Contents of the invention [0003] The purpose of the present invention is to overco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/52
Inventor 刘清鲁
Owner HITACHI ELEVATOR CHINA
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