CN200996920Y

CN200996920Y - Stress deformation measuring equipment of hard brittle material

Info

Publication number: CN200996920Y
Application number: CN 200720066592
Authority: CN
Inventors: 叶路章
Original assignee: SHANGHAI SANS MEASURING INSTRUMENT MANUFACTURING Co Ltd
Current assignee: MTS Industry System (China) Co., Ltd.
Priority date: 2007-01-23
Filing date: 2007-01-23
Publication date: 2007-12-26
Anticipated expiration: 2017-01-23

Abstract

A brittle material stress deformation measuring apparatus is provided, which comprises a test bench, upper and lower blades, a counterweight, and a dial gauge; the brittle material stress deformation measuring apparatus is characterized in: the measuring apparatus further comprises a support arranged on top surface of the test sample, and the support is a cubic cavity; both sides of the support are fixed above the lower blade on the test bench; a gauge head fixed via a pin shaft is arranged on the rear panel of the support; a clamp that is used to fix the dial gauge is fixed on the front panel of the support; the telescopic pole of the dial gauge contacts with one end of the gauge head, and the counterweight is arranged on the other end of the gauge head; the counterweight is located at outer side of the test bench.

Description

A kind of hard brittle material stress deformation measurement mechanism

Technical field

The utility model relates to a kind of hard brittle material stress deformation measurement mechanism.

Background technology

In relevant testing machine relevant criterion, the requirement of measuring the material bending plastic deformation ability is arranged.Present structure is: the electrode sample places on twice edges of a knife, clock gauge is fixed on the work examination platform, this structure is limit owing to the rigidity of clamp body own, it will be out of shape being subjected to external force to do the time spent, even microdeformation also exists, and electrode class hard brittle material when reaching break limit its distortion still very little.Obviously, this scheme is measured by gauge head together with the distortion of anchor clamps, and can be regarded as the distortion of sample mistakenly, so measured value is not very accurate, it is worthwhile so unreliable.

Summary of the invention

Technical problem to be solved in the utility model is: at problems of the prior art, propose a kind of hard brittle material stress deformation measurement mechanism that improves testing precision.

The utility model is achieved in that

A kind of hard brittle material stress deformation measurement mechanism comprises work examination platform, the upper and lower edge of a knife, counterweight, clock gauge and the supporting that places the sample upper surface, and described supporting is the cube cavity; The two sides of described supporting lay respectively at the described edge of a knife top down that is fixed on the work examination platform; Described supporting rear panel is provided with by the fixing gauge head of bearing pin; The front panel of described supporting is provided with the clamp body of fixing described clock gauge, and the expansion link of described clock gauge contacts with a top of described gauge head, and the other end of described gauge head is provided with counterweight, and described counterweight is positioned at the outside of described work examination platform.

The two sides of described supporting respectively with the described down edge of a knife at grade.

Described gauge head is positioned on the longitudinal centre line of described sample.

The longitudinal centre line of described sample is consistent with the line of symmetry of the described upper and lower edge of a knife.

The beneficial effects of the utility model: because clock gauge separates with work examination platform, being about to the distortion of clamp body and the distortion of sample separates fully, the shown numerical value of clock gauge only reflects the deflection of sample, therefore ignore the distortion of clamp body in the test process, only measure the distortion of sample, thereby improve measuring accuracy greatly, make test result accurately and reliably.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the left side structural representation among the utility model Fig. 1.

Among the figure: 5 times edges of a knife of 1 clock gauge, 2 gauge head 3 counterweights, 4 work examination platforms, 6 clamp bodies, 7 supportings, 8 samples

9 bearing pins, 10 expansion links.

Embodiment

Referring to accompanying

drawing

1,2, the work examination platform 4 of hard brittle material stress deformation measurement mechanism is provided with a pair of edge of a knife 5 down, supporting 7 is sleeved on the sample 8, the front panel of supporting 7 is provided with clamp body 6, clock gauge 1 is fixed on the clamp body 6 by transition piece, be connected with gauge head 2 by bearing pin 9 on the rear panel of supporting 7, one top of gauge head 2 contacts with the expansion link 10 of clock gauge 1, the other end stretches out the edge of work examination platform 4, and hang with counterweight 3, gauge head 2 is positioned on the longitudinal centre line of sample 8, and the longitudinal center of sample 8 matches with the line of symmetry of the following edge of a knife 5.Supporting 7 two sides respectively with the following edge of a knife 5 at grade.

Mounting means is: sample 8 is placed on twice edges of a knife 5, on sample 8, install the supporting 7 that has clamp body 6, gauge head 2, clock gauge 1 and counterweight 3 again, need only during installation counterweight 3 is suspended on the hook of gauge head 2, counterweight will self-poise clamp body 6 eccentric load, make clamp body 6 maintenance levels always, can guarantee that like this institute's measured value is the maximum deformation value of sample forever.

Claims

1, a kind of hard brittle material stress deformation measurement mechanism comprises work examination platform, the upper and lower edge of a knife, counterweight and clock gauge, and it is characterized in that: also comprise the supporting that places the sample upper surface, described supporting is the cube cavity; The two sides of described supporting lay respectively at the described edge of a knife top down that is fixed on the work examination platform; Described supporting rear panel is provided with by the fixing gauge head of bearing pin; The front panel of described supporting is provided with the clamp body of fixing described clock gauge, and the expansion link of described clock gauge contacts with a top of described gauge head, and the other end of described gauge head is provided with counterweight, and described counterweight is positioned at the outside of described work examination platform.

2, hard brittle material stress deformation measurement mechanism according to claim 1 is characterized in that: the two sides of described supporting respectively with the described down edge of a knife at grade.

3, hard brittle material stress deformation measurement mechanism according to claim 1 and 2, it is characterized in that: described gauge head is positioned on the longitudinal centre line of described sample.

4, hard brittle material stress deformation measurement mechanism according to claim 3, it is characterized in that: the longitudinal centre line of described sample is consistent with the line of symmetry of the described upper and lower edge of a knife.