Digital rebound tester

A rebound hammer, digital technology, applied in the direction of testing material hardness, etc., can solve the problems affecting the measurement accuracy and error of the rebound value, achieve the effect of improving durability and service life, improving measurement accuracy, and eliminating measurement accuracy

Active Publication Date: 2010-11-17
舟山市博远科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the initial length L of the stretched spring may have errors due to the use or adjustment factors of the rebound hammer, which will affect the actual measurement accuracy of the rebound value

Method used

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Experimental program
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Embodiment Construction

[0037] 1. The digital rebound hammer in this example consists of two parts: the rebound hammer and the computer. The structure of the hammer hammer is as follows: figure 1 , 2 shown. There is a rebound hammer housing composed of a front end cover 2, a main body 7 and a rear end cover 12. A central guide rod 6 is installed on the axis in the housing, the rear end of the central guide rod is fixedly connected with the flange 9, and the flange is stuck on the flange guide rail 13 parallel to the axis on the housing main body with its upper notch. The front end of the center guide rod is coaxially inserted in the rear end hole of the ejection rod 1 through the buffer spring, and the front end of the ejection rod passes through the front end cover. The center guide rod is covered with a bounce hammer 8, and the bounce hammer front end is connected with the bounce extension spring seat 4 that is enclosed within the bounce lever through a bounce extension spring. Ring pressure sen...

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PUM

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Abstract

The invention provides a digital resiliometer which is provided with a resiliometer shell [2, 7] which is internally provided with a spring component which is provided with a pullback spring [5]; the front end of the pullback spring is arranged on a spring base [4] and the rear end thereof is connected with a spring hammer; the pullback spring is arranged at the front end of the resilliometer shell through the pullback spring; the pullback spring base and the resiliometer shell are connected with each other by a force sensor [3]. The digital resiliometer fully abandons a pointer system which is necessary for traditional resiliometer; compared with the prior art, the digital resiliometer simplifies the mechanical structure of the resiliometer, omits the point system which has most complicated mechanical structure in the resiliometer, completely eliminates the problems such as measurement precision, stability, and durability, etc. due to the pointer system, radiacally improves the measurement precision, stability, durability and service life of the digital resiliometer, effectively simplifies the production process and flows of the mechanical parts of the digital resiliometer, thus reducing the comprehensive production cost of the mechanical part of the digital resiliometer.

Description

technical field [0001] The invention relates to a digital hammer, which belongs to the technical field of testing the surface hardness characteristics of solid materials by measuring the rebound degree of impacting objects in physics. Background technique [0002] The existing digital rebound tester is as introduced in the Chinese invention patent ZL03103652.X "Concrete compressive strength tester by rebound method and its manufacturing method": "a tester for concrete compressive strength by rebound method, which is installed in the shell There is a bouncing hammer with a guide rod in the center. The front end of the bouncing hammer is connected with the front wall of the housing by a main spring. The outer diameter of the bouncing hammer has a step with a small rear and a large front. The rod is parallel to the guide rod of the vernier. The cursor is installed on the guide rod of the vernier. The pointer surface of the vernier is limited in the long hole parallel to the gui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/52
Inventor 诸华丰周岳年邱伟明
Owner 舟山市博远科技开发有限公司
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