CN202182853U

CN202182853U - Qualitative torsion tester

Info

Publication number: CN202182853U
Application number: CN2011202299838U
Authority: CN
Inventors: 张恒硕; 江连桂
Original assignee: China Steel Corp
Current assignee: China Steel Corp
Priority date: 2011-07-01
Filing date: 2011-07-01
Publication date: 2012-04-04
Anticipated expiration: 2021-07-01

Abstract

A qualitative torsion tester is suitable for stretching equipment and used for measuring the torsional force of an object to be tested. The stretching equipment comprises a base and a force application end. The qualitative torsion tester comprises a main body arranged on the base, a fixed seat arranged on the main body, a main rotating part rotationally arranged on the main body, a connecting piece arranged at the force application end of a top seat and a transmission part arranged between the connecting piece and the main rotating part in a connecting manner. The to-be-tested object is arranged between the fixed seat and the main rotating part, the transmission part is pulled by the connecting piece to drive the main rotating part to rotate, the stretching equipment is utilized to drive the main rotating part to enable the to-be-tested object fixed on the main rotating part to turn, and the torsional characteristic curve is acquired through strength and displacement data acquired by the stretching equipment.

Description

Torsion qualitative test device

Technical field

The utility model relates to a kind of torsion qualitative test device, particularly relates to a kind of torsional test being used in the torsion qualitative test device on the stretcher.

Background technology

In general, if will understand material can be damaged under which kind of condition, topmost index is exactly to understand the intensity of material.Wherein tension test is one of method of knowing the strength of materials.

So-called tension test mainly is the test piece of test specimen to be measured being processed into certain specification; Place in the cupping machine, two ends impose pulling force, till destroying; According to test findings, can determine elastic limit, yield point, yield strength, tensile strength, length growth rate and the reduction of area etc. of material.

Yet along with the lifting of industrial technology, hand tool miscellaneous has been widely used in all trades and professions; In every case bottle opener series products, driving axle center product or spanner series products etc. often all have the demand of torsion characteristic, in order to the otherness between its product and his the factory's product relatively; Or provide female factory product that its foundries of judge is produced on antitorque characteristic, whether to satisfy the demand of formulating; Therefore, if will measure the torsion characteristic of object, do not apply use just have the board of tension test merely.

The utility model content

Therefore, the purpose of the utility model is promptly providing a kind of torsion qualitative test device in order to the torque curve that measures determinand.

So the utility model torsion qualitative test device is applicable to stretcher; In order to measure the torsion of determinand; This stretcher comprises base, upright is located on this base and the extensible member of telescopic action, and is connected with on this extensible member and driven and the footstock of the displacement of going up and down by this extensible member, and this footstock comprises the force side; This torsion qualitative test device comprises: body, basal wall, holder, main tumbler, nested base, web member, and driving member.This body is arranged on the base of this stretcher.This basal wall is stretched out by this body.This holder is arranged on this basal wall and is parallel with this body, and this holder supplies an end of this determinand to fix, and this body, this basal wall match with this holder and define the ccontaining accommodation space of this determinand of confession.This main tumbler has the axle center, and is located in rotationally on this body.This nested base is arranged on the axle center of this main tumbler and supplies the other end fit of this determinand, and this nested base can rotate together with this main tumbler.This web member is arranged on the force side of this footstock.This driving member connects this web member and this main tumbler; The force side that this extensible member drives this footstock moves up; And strength is passed to this web member via this force side, this driving member receives this web member pulling and drives this main tumbler to rotate, to measure the torsion of this determinand.

The effect of the utility model: through torsional test is used on the cupping machine; Utilize this cupping machine to drive this main tumbler; The torsion coupon that is fixed in this main tumbler axle center is produced reverse, strength and displacement data through this cupping machine feedback is obtained obtain torsion characteristic curve; And see through and to install easily, the torsion characteristic of metal material, tubing or the steel of heterogeneity of all kinds also can be provided.

Description of drawings

Fig. 1 is the stereographic map of first preferred embodiment of the utility model torsion qualitative test device;

Fig. 2 is a user mode figure, explains that the preferred embodiment is installed in the aspect on the cupping machine;

Fig. 3 is a stereographic map, and the torsion coupon that the preferred embodiment adopts is described;

Fig. 4 is a synoptic diagram, explain the preferred embodiment in use make dynamic spline;

Fig. 5 is a curve map, explains that this cupping machine measures the strength of gained and the relation of displacement; And

Fig. 6 is the stereographic map of second preferred embodiment of the utility model torsion qualitative test device.

Embodiment

About the aforementioned of the utility model and other technology contents, characteristics and effect, in two DETAILED DESCRIPTION OF THE PREFERRED of following cooperation, can clearly appear with reference to accompanying drawing.

Before the utility model is described in detail, be noted that in following description similar elements is to represent with identical numbering.

Consult Fig. 1 and Fig. 2; First preferred embodiment of the utility model torsion qualitative test device 3 is applicable to stretcher 1, in order to measuring the torsion of determinand 2, special instruction be; This stretcher 1 is a cupping machine 1; This cupping machine 1 comprises base 11, upright is located on this base 11 and the extensible member 12 of telescopic action, and is connected with on this extensible member 12 and driven and the footstock 13 of the displacement of going up and down by this extensible member 12, and these footstock 13 bottom surfaces are provided with force side 131.This torsion qualitative test device 3 comprises body 31, holder 32, main tumbler 33, nested base 34, web member 35, driving member 36, and auxilliary tumbler 37.

This body 31 is arranged on the base 11 of this stretcher 1; And this body 31 has upstanding wall 311, by the horizontally extending roof of these upstanding wall 311 apical margins 312, by the horizontally extending diapire 313 of these upstanding wall 311 root edges, and this holder 32 is arranged on this diapire 313 and is parallel separately with this upstanding wall 311, in addition; This main tumbler 33 is arranged on this upstanding wall 311 rotationally; And this determinand 2 is to be arranged at removably between this holder 32 and this main tumbler 33, and in addition, this main tumbler 33 has axle center 331; And this nested base 34 is arranged on the axle center 331 of this main tumbler 33, and supplies this sheathed location of determinand 2 one ends.In addition; This web member 35 is arranged on the force side 131 of this footstock 13; And this driving member 36 is connected with between this web member 35 and this main tumbler 33, and the force side 131 that drives this footstock 13 through this extensible member 12 moves up, and then sees through this main tumbler 33 rotations of these driving member 36 drives of these web member 35 pullings; So that this determinand 2 produces twisting action; And this driving member 36 comprises stressed section 361 that is connected with this web member 35, be looped around these main tumbler 33 outer peripheral edges around section 362, and connect this stressed section 361 with should be around the linkage section 363 of section 362.In addition; Should be arranged on rotationally on this upstanding wall 311 by auxilliary tumbler 37; Should auxilliary tumbler 37 outer peripheral edges be connected, use so that stressed section 361 of this driving member 36 and this nested base 34 that is positioned on this main tumbler 33 are positioned at the pulling force ordinate with the linkage section 363 of this driving member 36.

The main tumbler 33 of in the present embodiment this describes with the gear form with this auxilliary tumbler 37; This driving member 36 then is the rigid link chain form; Be meshing with each other through this rigid link chain and said toothed disc, and receive these web member 35 pullings and drive said toothed disc to rotate.In addition, in the present embodiment this determinand 2 is a torsion coupon 2.

Consult Fig. 3, be the torsion coupon 2 that the utility model torsion qualitative test device 3 is adopted, this torsion coupon 2 has two canned paragraphs 21; And the arc section 22 of the said canned paragraph 21 of connection, definition is the round B (shown in imaginary line among Fig. 3) of part arc length with the circular arc of this arc section 22, and supposes that this arc length is A; And the folded angle in the center of circle of this arc length A and this circle B is the δ angle, and when healing when big in the δ angle, arc length A is bigger; The volume of this torsion coupon 2 is bigger, and the torque value that measures out is also bigger; On the contrary, when the δ angle more hour, arc length A is littler, the torque value that measures out is also little, therefore under the different tests condition during comparison torsion characteristic, torsion coupon 2 sizes that must adopt same specification compare.

Consult Fig. 2 and Fig. 4; In the use, be earlier an end of this torsion coupon 2 to be set on this holder 32, the other end with this torsion coupon 2 is linked in this nested base 34 again; The force side 131 that then utilizes this extensible member 12 to drive this footstock 13 moves up; And strength is passed to this web member 35 via this force side 131, then receive these web member 35 pullings and drive should main tumbler 33 rotations for this driving member 36, and then can measure the torsion characteristic of this torsion coupon 2.In addition; Consult Fig. 5; Be strength-displacement curve that this cupping machine 1 is measured, it is that the SAE9254 coupon of HRC49 is tested that present embodiment mainly adopts heat treatment hardness, and test condition is adopted 0.1 ~ 0.5mm/s speed for this cupping machine 1 this torsion qualitative test device 3 is stretched; By knowing among the figure; The curve repeatability that measures gained is quite high, and can carry out the comparison of torsion curve on qualitative to different rigidity intensity steel, with as the exploitation material of this torsion coupon 2 and the relatively assessment of material torsion characteristic after Different Heat Treatment Conditions.

In addition, consult Fig. 4, suppose that main tumbler 33 effective radiuses are R, device travel is S, F _sThe loading that is applied during for this stretcher 1 stroke S, then torsion coupon 2 torsional moment of being born is F _sR, the windup-degree θ of torsion coupon 2 then can calculate through stretcher 1 stroke S, get θ=180S/ π R.

Thus, the utility model torsion qualitative test device 3 has the advantage of the following stated when reality is used:

(1) can measure the torque curve of determinand 2:

Through this torsion qualitative test device 3 is installed on this cupping machine 1; Utilize the traction of this cupping machine 1 to drive said tumbler 33,37; Make and be fixed on this main tumbler 33 and carry out circular motion with torsion coupon 2 on this holder 32 along with this main tumbler 33 and reverse; Therefore, can see through strength and the displacement that 1 measurement of this cupping machine obtains, the torque curve of this torsion coupon 2 that converts.

(2) can carry out the comparison of torsion curve on qualitative to different high strength steels:

The curve repeatability that measures gained through this cupping machine 1 is quite high; Therefore can carry out the comparison of torsion curve on qualitative to different rigidity intensity steel, with as the exploitation material of this torsion coupon 2 and the relatively assessment of material torsion characteristic after Different Heat Treatment Conditions.

Consult Fig. 6; Second preferred embodiment for the utility model torsion qualitative test device 3; This preferred embodiment is roughly the same with this first preferred embodiment, and difference is this main tumbler 33 and should auxilliary tumbler 37 was to adopt the runner form, and this driving member 36 is a rigidity cable wire form; Not only can reach the effect identical thus with first preferred embodiment; And the acting force that more can guarantee 37 of the main tumblers of this driving member 36 and this 33, auxilliary tumbler occurs in the tangent to periphery direction, and then can simplify the conversion of torque curve, makes strength-displacement curve can directly convert torsional moment-torsion angle curve into.

In sum, through torsional test is used on the cupping machine 1, utilize this cupping machine 1 to drive this main tumbler 33; The torsion coupon 2 that is fixed in these main tumbler 33 axle center 331 is produced to be reversed; Strength and displacement data through this cupping machine 1 feedback is obtained obtain torsion characteristic curve, and see through and should install easily; The torsion characteristic of metal material, tubing or the steel of heterogeneity of all kinds also can be provided; And utilize the collocation of runner and rigidity cable wire, can guarantee that more the acting force of 37 of the main tumblers of this driving member 36 and this 33, auxilliary tumbler occurs in the tangent to periphery direction, and then can simplify the conversion of torque curve; Make strength-displacement curve can directly convert torsional moment-torsion angle curve into, therefore can reach the purpose of the utility model really.

Content described in the preceding text is merely the preferred embodiment of the utility model; Can not limit the scope that the utility model is implemented with this; Promptly, all fall in the scope that the utility model patent contains so long as the simple equivalent of doing according to the utility model claims and novel description changes and modifies.

The main element symbol description:

1 stretcher (cupping machine)

11 bases

12 extensible members

13 footstocks

131 force sides

2 determinands (torsion coupon)

21 canned paragraphs

22 arc sections

3 torsion qualitative test devices

31 bodies

311 upstanding walls

312 roofs

313 diapires

32 holders

33 main tumblers

331 axle center

34 nested bases

35 web members

36 driving members

361 stressed sections

362 around section

363 linkage sections

37 auxilliary tumblers

Claims

1. torsion qualitative test device; Be applicable to stretcher; In order to measuring the torsion of determinand, this stretcher comprises base, uprightly is located on this base and the extensible member of telescopic action, and is connected with on this extensible member and driven and the footstock of the displacement of going up and down by this extensible member; This footstock bottom surface is provided with the force side, and this torsion qualitative test device comprises:

Body is arranged on the base of this stretcher, and this body has upstanding wall, by the horizontally extending roof of this upstanding wall apical margin, by the horizontally extending diapire of this upstanding wall root edge;

Holder is arranged on this diapire and parallel separately with this upstanding wall;

Main tumbler is arranged on this upstanding wall rotationally, and this determinand is to be arranged at removably between this holder and this main tumbler;

Web member is arranged on the force side of this footstock; And

Driving member is connected with between this web member and this main tumbler, and the force side that drives this footstock through this extensible member moves up, and then sees through this main tumbler rotation of this driving member drive of this web member pulling, so that this determinand produces twisting action.

2. torsion qualitative test device according to claim 1; Wherein, This driving member comprises stressed section that is connected with this web member; Be looped around these main tumbler outer peripheral edges around section, and connect this stressed section with should around section linkage section, this torsion qualitative test device also comprises the auxilliary tumbler that is arranged on rotationally on this upstanding wall; Should auxilliary tumbler outer peripheral edges be connected with the linkage section of this driving member, usefulness is so that stressed section of this driving member is positioned at the pulling force ordinate with this nested base that is positioned on this main tumbler.

3. torsion qualitative test device according to claim 1 and 2, wherein this main tumbler has the axle center, and this torsion qualitative test device also comprises the nested base on the axle center that is arranged on this driving link, and this nested base supplies this sheathed location of determinand one end.

4. torsion qualitative test device according to claim 1 and 2, wherein, this main tumbler be the gear form with assisting tumbler, this driving member then is the rigid link chain form.

5. torsion qualitative test device according to claim 1 and 2, wherein, this main tumbler be the runner form with assisting tumbler, this driving member is a rigidity cable wire form.