CN2236131Y - Deflexion testing instrument - Google Patents
Deflexion testing instrument Download PDFInfo
- Publication number
- CN2236131Y CN2236131Y CN 94231409 CN94231409U CN2236131Y CN 2236131 Y CN2236131 Y CN 2236131Y CN 94231409 CN94231409 CN 94231409 CN 94231409 U CN94231409 U CN 94231409U CN 2236131 Y CN2236131 Y CN 2236131Y
- Authority
- CN
- China
- Prior art keywords
- lever
- dial gauge
- utility
- model
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a testing instrument for flexibility test instrument of friable metallic materials. The utility model is composed of a lever 1, a lever supporting seat 2, a supporting rotating shaft 3, a spring 4, a dial gauge bracket 5, an integral fixed clip 9, fixed screws, bolts, etc.; the utility model is arranged on an upright post of a universal testing machine, a testing end of the lever is arranged on the lower end of an element to be tested, when the element to be tested generate deformation, the testing end moves downwards to a value display end of the lever and a dial gauge can display a flexibility value, and thus the purpose of testing the flexibility of the friable metallic materials is achieved. The utility model has the advantages of simple structure, convenient operation, high accuracy and high sensibility, and the utility model is suitable for the flexibility tests of various metallic materials.
Description
The utility model relates to the mechanically deform field tests, particularly relates to the tester that the brittle metal amount of deflection detects.
Amount of deflection is a toughness index in the hard brittle material beam test, particularly must accurately measure deflection value in the material scientific research.
In the material mechanical performance test experiments, the instrument of measuring axial deformation is a lot, relates to diastrophic instrument but seldom at present.ZL9227137.3 discloses a kind of deflection test instrument, measuring the concrete component amount of deflection uses, its principle is to utilize the bending deformation quantity of spring test concrete component, it is applicable to big part concrete component static deformation amount, the deformation under load under the duty, and the test of metal material performance is the performance of requirement test material itself, its precision prescribed height, bending deformation quantity under various load, particularly ultimate deformation amount, this tester is then inapplicable.
The utility model is exactly to provide a kind of tester that is used for laboratory measurement brittle metal material amount of deflection at the problems referred to above, and it utilizes lever principle, and the deflection under the various load conditions of test specimen is tested out by dial gauge.
The purpose of this utility model is to realize like this, its main member has: lever, lever support, the supporting rolling bearing, spring, the dial gauge carriage, overall fixed folder etc., the lever of tester is fixed in the rotating shaft of lever support by spring, the dial gauge carriage is fixed on tester lever support top by trip bolt, dial gauge is positioned in the circular hole folder of dial gauge carriage, clamp by trip bolt, the deflection test instrument is installed on the column of universal testing machine, by overall fixed folder and bolt, the lever test lead places the place, point of contact of the bottom load concentration point of test specimen, contacts with test specimen, and the lever value indication end contacts with the dial gauge reference test bar, spring makes lever keep balance, on lever support, during test, test block produces flexural deformation to its other end under loading by screw retention, be pressed onto the lever test lead, it is moved down, move thereby drive on the lever value indication end, at this moment dial gauge promptly shows the ratio value of amount of movement, ratio value be multiply by the ratio of lever, promptly is deflection value at that time.
The utility model is simple in structure, and is easy to make, uses flexibly accurately, it can put down in writing the deflection value of test specimen at any time, and measured value is not subjected to the deformation effect of instrument, and equipped electrical measurement dial gauge can write down the relation curve of amount of deflection and load, and its measuring accuracy can reach one of percentage millimeter.
Below in conjunction with accompanying drawing the utility model is described further.
Accompanying drawing is a structural representation of the present utility model.
Lever 1 is fixed on the supporting rotation axis 3 of lever support 2 by spring 4, the ratio of lever can be 1: 3～8, spring 4 other ends are fixed on the lever support 2 by screw 8, spring 4 makes lever keep equilibrium state, dial gauge carriage 5 is fixed on the upper end of lever support by trip bolt, dial gauge is installed in the circular hole folder 14 of dial gauge carriage 5, clamp with screw 7, during test, tester is fixed on the column of universal testing machine by overall fixed folder 9 and bolt 11, changes lever segment over to compression stroke, lever test lead 12 places the bottom of test specimen centre-point load to contact with the test specimen point of contact, lever value indication end 13 contacts with the dial gauge reference test bar, adjust the dial gauge reading, testing machine adds load, and test specimen produces distortion, compressing lever test lead 12 moves down, move on the lever value indication end 13, dial gauge rotates, and demonstrates the bending deformation quantity ratio value under load this moment, ratio according to lever multiplies each other, and promptly draws the deflection value of test specimen this moment.
Claims (1)
1, a kind of deflection test instrument, it is characterized in that it mainly is by lever (1), lever support (2), supporting shaft (3), spring (4), dial gauge carriage (5), overall fixed folder compositions such as (9), lever (1) is fixed on the supporting rotation axis (3) of lever support (2) by spring (4), dial gauge carriage (5) is fixed on the top of lever support (2) by trip bolt (6), dial gauge is positioned in the circular hole folder (14) of dial gauge carriage (5), clamp by trip bolt (7), the deflection test instrument is installed on the column of universal testing machine, fixing by overall fixed folder (9) and bolt (11), lever test lead (12) is measured in the bottom of test specimen centre-point load and is contacted with the test specimen point of contact, lever value indication end (13) contacts with the dial gauge reference test bar, spring (4) other end is positioned on the lever support (2) with screw (8), and spring (4) makes lever (1) keep balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231409 CN2236131Y (en) | 1994-12-03 | 1994-12-03 | Deflexion testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231409 CN2236131Y (en) | 1994-12-03 | 1994-12-03 | Deflexion testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2236131Y true CN2236131Y (en) | 1996-09-25 |
Family
ID=33843252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94231409 Expired - Fee Related CN2236131Y (en) | 1994-12-03 | 1994-12-03 | Deflexion testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2236131Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822824A (en) * | 2014-03-11 | 2014-05-28 | 河南科技大学 | Clamp for cylindrical metallographic sample |
| CN106769421A (en) * | 2017-03-08 | 2017-05-31 | 盐城工学院 | A kind of building materials performance aircraft |
| CN112198187A (en) * | 2020-10-20 | 2021-01-08 | 内蒙古科技大学 | Method for synchronously measuring radial strain based on longitudinal strain measurement thermal expansion instrument |
-
1994
- 1994-12-03 CN CN 94231409 patent/CN2236131Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822824A (en) * | 2014-03-11 | 2014-05-28 | 河南科技大学 | Clamp for cylindrical metallographic sample |
| CN103822824B (en) * | 2014-03-11 | 2016-08-24 | 河南科技大学 | Cylindricality metallographic specimen clamp |
| CN106769421A (en) * | 2017-03-08 | 2017-05-31 | 盐城工学院 | A kind of building materials performance aircraft |
| CN112198187A (en) * | 2020-10-20 | 2021-01-08 | 内蒙古科技大学 | Method for synchronously measuring radial strain based on longitudinal strain measurement thermal expansion instrument |
| CN112198187B (en) * | 2020-10-20 | 2024-02-02 | 内蒙古科技大学 | Method for synchronously measuring radial strain based on longitudinal strain measurement thermal expansion instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |