CN2750311Y

CN2750311Y - Hanging type clamp for high temperature endurance test

Info

Publication number: CN2750311Y
Application number: CN 200420070662
Authority: CN
Inventors: 陈志仁; 牛昌安; 杨金荣
Original assignee: Shenyang Liming Aero Engine Group Co Ltd
Current assignee: Shenyang Liming Aero Engine Group Co Ltd
Priority date: 2004-09-17
Filing date: 2004-09-17
Publication date: 2006-01-04
Anticipated expiration: 2014-09-17

Abstract

The utility model relates to a hanging type clamp for a high temperature endurance test, which belongs to the technical field of devices for testing the pulling force of metallic high temperature material. The clamp is composed of an upper fixed seat, a lower fixed seat, an upper clamp body (1), a lower clamp body (3) and a testing sample (2), wherein the upper clamp body (1) is composed of a connecting piece (4), a base (6) and a circular table (5), and the structure of the lower clamp body (3) is the same as the structure of the upper clamp body (1). The testing sample (2) is composed of a circular pull rod (9), an upper position table (7) and a lower position table (8). The outer surface of the connecting piece (4) forms an external screw thread. The front end of a bottom base (6) of the upper clamp body is provided with a square bar-shaped groove. The axial center of the bottom base (6) is provided with a circular hole. The square bar-shaped groove is communicated with the circular hole. A square hole is arranged on the square bar-shaped groove. The bottom base (6) is connected with the connecting piece (4) into an integrative structure through the circular table (5). The clamping has the advantages that the clamping is convenient, the concentricity is ensured and the disengagement and adhesion between the testing sample and the clamp and the oxidation phenomenon of the clamp are overcome.

Description

The hanging anchor clamps of stress-rupture tester

Technical field

The utility model belongs to a kind of metal material high temperature device for testing tensile force, is applicable to metal material under the hot operation condition, uses in the test of tensile fatigue intensity and quiet pulling strengrth in the duration running.

Background technology

At present, the cupping machine of test metal material tensile fatigue intensity under the hot operation condition, in aviation, boats and ships, electric power, metallurgical, industries such as scientific research institute are widely used, when this cupping machine is done the tension test of metal material, still adopt old-fashioned screw connection structure, tested sample is threaded with the testing machine pull bar, its screw connection structure is simple, tested sample and testing machine pull bar are connected firmly, but the screw connection structure of tested sample and testing machine pull bar has weak point, when tensile fatigue intensity of carrying out metal material and quiet tensile strength test, tested sample anchor clamps threaded portion is when high temperature works long hours, sintering and high-temperature oxydation phenomenon easily take place in the anchor clamps of tested sample, cause tested sample and anchor clamps to thread off, adhesion and clamping overlong time problem, tested sample are connected with anchor clamps uses screw connection structure, is threaded when in poor shape, need clamping tested sample again after threading off, wasted the man power and material.

Summary of the invention

In order to solve the problem of above-mentioned existence, the utility model provides a kind of stress-rupture tester hanging anchor clamps, the top and bottom of tested sample are hung in the upper and lower clamp body base of tension tester, and the realization tested sample is fixedlyed connected with the clamp body of tension tester

The realization the technical solution of the utility model is as follows:

The hanging anchor clamps of stress-rupture tester are by upper fixed seat, lower fixed seat, last clamp body, lower clamp body and tested sample are formed, last clamp body is by web member, base and round platform constitute, the structure of lower clamp body is identical with last clamp body structure, tested sample is by the circle pull bar, upper and the next composition, upper is circular with the next structure, last clamp body one end is a web member, the web member outside is an external thread, the other end of last clamp body is a base, understructure is cylindrical or square, have square rectangular groove at the base front end, the axial centre of base is drilled with circular hole, square rectangular groove and circular hole have square opening for communicating above square rectangular groove, base is by round platform and the web member structure that is connected in one.

Advantage of the present utility model: convenient mounting and clamping, guarantee concentricity, overcome tested sample and clamp body dropout, adhesion and clamp body oxidative phenomena, improve the clamping apparatus utilization factor, saved the man power and material, reduce experimentation cost.

Description of drawings

Fig. 1 is the hanging clamp structure figure of stress-rupture tester;

Fig. 2 is the last clamp body structural drawing of the hanging anchor clamps of stress-rupture tester;

Fig. 3 is the last clamp body B-B cut-open view of the hanging anchor clamps of stress-rupture tester;

Fig. 4 is the hanging anchor clamps tested sample of a stress-rupture tester structural drawing;

Fig. 5 is the lower clamp body structure figure of the hanging anchor clamps of stress-rupture tester.

Among the figure: clamp body on 1,2 tested sample, 3 lower clamp bodies, 4 web members, 5 round platforms, 6 bases, 7 upper, 8 the next, 9 circle pull bars.

Embodiment

Now in conjunction with the accompanying drawings the utility model is described in further detail;

By shown in Figure 1; The hanging anchor clamps of stress-rupture tester are by upper fixed seat, lower fixed seat, last clamp body 1, lower clamp body 3 and tested sample 2 are formed, last clamp body 1 is by web member 4, base 6 and round platform 5 constitute, the structure of lower clamp body 3 is identical with last clamp body 1 structure, the upper fixed seat internal thread that screws into tension tester of last clamp body 1 web member 4 matches, the internal thread that screws into the testing machine lower fixed seat of lower clamp body 3 web members 4 matches, upper fixed seat is connected with the pull bar of testing machine respectively with lower fixed seat, and upper fixed seat and lower fixed seat are the existing fixed part of tension tester.

By Fig. 2, shown in Figure 3; Web member 4 outsides of last clamp body 1 are external thread, base 6 structures are cylindrical or square, have square rectangular groove at base 6 front ends, the axial centre of base 6 is drilled with circular hole, square rectangular groove and circular hole are for communicating, above square rectangular groove, have square opening, base 6 is by round platform 5 and web member 4 structure that is connected in one, the material of last clamp body 1 and lower clamp body 3 adopts high temperature heat-resisting material K403, test temperature is brought up to 1100 ℃ by original 900 ℃, has enlarged the scope of test temperature.

By shown in Figure 4; The structural drawing of tested sample 2, tested sample 2 by the circle pull bar 9, upper 7 and the next 8 constitute, the middle part of tested sample 2 is circle pull bar 9, one end of tested sample is upper 7, the other end of tested sample is the next 8, upper 7 and the next 8 structure are circular, and tested sample 2 structures are centrosymmetric structure.

By shown in Figure 5; The structure of lower clamp body 3 is identical with last clamp body 1 structure, and lower clamp body 3 is made of web member 4, base 6 and round platform 5,

When the hanging anchor clamps of stress-rupture tester use, the internal thread that screws into the testing machine upper fixed seat that at first will go up the web member 4 of clamp body 1 matches, in like manner, the internal thread that screws into the testing machine lower fixed seat with the web member 4 of lower clamp body 3 matches again, upper fixed seat is connected with the tension tester pull bar respectively with lower fixed seat, the base 6 of last clamp body 1 is by round platform 5 and web member 4 structure that is connected in one, adjust the height of clamp body 1 and lower clamp body 3 on the tension tester then, highly for putting into the height of tested sample 2, tested sample as shown in Figure 4 for clamp body 1 and lower clamp body 3 in the adjustment; Upper the 7 square rectangular groove by last clamp body 1 of the upper end of tested sample 2 put in the base 6 of clamp body 1, upper 7 of tested sample 2 upper ends is stuck in the circular hole of base 6, with the next the 8 square rectangular groove by lower clamp body 3 of tested sample 2 lower ends being put in the base 6 of lower clamp body 3 with quadrat method, the next 8 of tested sample lower end is stuck in base 6 circular holes of lower clamp body 3, tested sample 2 axial centre become concentric position in last clamp body 1 and lower clamp body 3, after inspection finishes, begin to do tensile test.

Claims

1, the hanging anchor clamps of a kind of stress-rupture tester are by upper fixed seat, lower fixed seat, last clamp body (1), lower clamp body (3) and tested sample (2) are formed, it is characterized in that clamp body (1) is by web member (4), base (6) and round platform (5) constitute, the structure of lower clamp body (3) is identical with last clamp body (1) structure, tested sample (2) is by circle pull bar (9), upper (7) and the next (8) are formed, last clamp body (1) one end is web member (4), web member (4) outside is an external thread, last clamp body (1) other end is base (6), have square rectangular groove at base (6) front end, the axial centre of base (6) is drilled with circular hole, square rectangular groove and circular hole are for communicating, have square opening above square rectangular groove, base (6) is by round platform (5) and web member (4) structure that is connected in one.

2, according to the hanging anchor clamps of the described stress-rupture tester of claim 1, the structure that it is characterized in that described base (6) is cylindrical or square.

3,, it is characterized in that described upper (7) and the next (8) structure are cylindrical according to the hanging anchor clamps of the described stress-rupture tester of claim 1.

4,, it is characterized in that the described material of going up clamp body (1) and lower clamp body (3) all adopts high temperature heat-resisting material K403 according to claim 1 or the hanging anchor clamps of 2 described stress-rupture testers.