CN2646694Y

CN2646694Y - Impact test equipment

Info

Publication number: CN2646694Y
Application number: CN 03208626
Authority: CN
Inventors: 王文志; 邓国欣
Original assignee: Prodisc Technology Inc
Current assignee: Prodisc Technology Inc
Priority date: 2003-08-29
Filing date: 2003-08-29
Publication date: 2004-10-06
Anticipated expiration: 2013-08-29

Abstract

The utility model relates to an impact testing device, which is applicable to test a testing object. The utility model comprises an impact unit, a position unit and a holding unit; wherein the impact unit has an impact component, a pole component and a fixing component; the pole component is made of a flexional elastoplastic material; the two ends of the pole component are respectively connected to the impact component and the fixing component; the position unit is arranged opposite to the pole component and is provided with a plurality of anchor points; one end of the pole component is fixed on a fixing end, whereas the other end is able to move along the anchor points; and the holding unit is applicable to fix a testing abject.

Description

Impact test apparatus

Technical field

The utility model relates to a kind of mechanical test device, especially in regard to a kind of impact test apparatus.

Prior art

The normal article that use in the daily life, the situation that regular meeting causes because of improper use or fatigue loading destroying takes place, so the measuring mechanical property of article material is one of basic demand of production; Common measuring mechanical property has tension test and hardness test or the like, but tension test and hardness test are envelope test, and therefore, when being subjected to very big loading impact suddenly as if material, then the ability of material impact opposing can't be judged by static test.Under this kind percussive action, the character that material destroys easily is called fragility (brittleness), and its survivable character is called toughness (toughness).Generally speaking, when applying external force when impacting a test piece, the energy that the test piece impact fracture is required can be tried to achieve the impact value of test piece divided by the former effective basal area of test piece barbed portion, and the standard step of doing this impact value test promptly is called impulse test.

Please refer to shown in Figure 1ly, existing test apparatus 1 is to utilize the pendulum 11 with known weight to rise to a certain height, and then pendulum 11 can have a potential energy, after it discharges, collide disconnected determinand 2, the energy of some is absorbed by determinand, and a part of energy conversion becomes potential energy to be formed up to another height; But because during pendulum 11 swing, and after pendulum 11 impacted disconnected determinand 2, determinand 2 flew out and supports platform 12, all can accidentally injure the tester; In addition, must impact determinand 2 preceding height by record pendulum 11, impact the height that is risen in disconnected determinand 2 backs with pendulum 11, and obtain the impact value of determinand 2 via computing.

As mentioned above, how to provide a kind of operation simple and easy, do not need just can directly judge the impact value of determinand via computing, and the impact test apparatus of safe operation process, one of important topic of current industrial community just.

The utility model content

Because above-mentioned problem, the purpose of this utility model is for providing a kind of impact test apparatus that does not need just can directly judge via computing the impact value and the safe operation process of determinand.

For reaching above-mentioned purpose, according to the impact test apparatus of the utility model, comprise one impact assembly, certain hyte part and is seized assembly on both sides by the arms.In the utility model, impact assembly and have an impact portion, a bar portion and a fixed part, impact portion and fixed part are connected with respectively in the two ends of bar portion, and bar portion is made of flexible elastic plastic material, and impact portion is relative with determinand and establish; Positioning component is relative with bar portion and establish, and has a plurality of anchor points; One end of bar portion is fixed in stiff end, and the other end can move along anchor point; Seize assembly system on both sides by the arms in order to fixing determinand.

From the above, according to impact test apparatus of the present utility model, its bar portion is flexible elastic plastic material, with the angle of the bar portion bending critical impulse value as determinand, so do not need just can obtain via computing the standard of determinand impact failure; And impact test apparatus of the present utility model has the assembly of seizing on both sides by the arms, and it is determinand fixedly, accidentally injures the tester to avoid determinand to splash, and real is the simple and easy impact test apparatus of safety again of a kind of operating process.

The accompanying drawing simple declaration

Fig. 1 is a synoptic diagram, shows the synoptic diagram of existing impact test apparatus;

Fig. 2 is a synoptic diagram, shows the synoptic diagram according to the impact test apparatus of the utility model preferred embodiment;

Fig. 3 A and 3B are synoptic diagram, show the synoptic diagram of testing according to the impact test apparatus of the utility model preferred embodiment; And

Fig. 4 is a synoptic diagram, shows the synoptic diagram according to the impact test apparatus of another preferred embodiment of the utility model.

Embodiment

Hereinafter with reference to correlative type, the impact test apparatus according to the utility model preferred embodiment is described, wherein identical assembly will be illustrated with identical reference marks.

Please refer to shown in Figure 2, according to the impact test apparatus 3 of the utility model preferred embodiment comprise one impact assembly 31, certain hyte part 32, is seized assembly 33, a workbench 34, a slideway 35 and a determinand 2 on both sides by the arms.

Impact assembly 31 and have an impact portion 311, a bar portion 312 and a fixed part 313.

In the present embodiment, impact portion 311 is a removable position, is connected with the end in bar portion 312, in order to impacting a determinand 2, and relative with determinand 2 and be provided with; Fixed part 313 is arranged on the workbench 34, and is fixed in the other end of bar portion 312.

Bar portion 312 is a flexible elastic plastic material, when the stress that acts on bar portion 312 arrives the preceding linear elasticity district that has of yield stress (yield stress), and bar portion still need follow Hooke's law in this linear elasticity district, but after stress surpassed yield stress, bar portion just can do plastic yield under constant stress; Be subjected to form permanent plastic deformation after the stress bending for fear of bar portion, it is very important that stress is remained in the linear elasticity scope.The relation of the application safety factor and yield stress (allowable stress=yield stress/factor of safety) promptly can be the selected suitable elastic plastic material of bar portion.

Positioning component 32 is arranged at a side of bar portion 312, and it comprises a plurality of anchor points 321 and an Access Division 322.

In the present embodiment, anchor point 321 more can mark the numerical value of each angle of bend of bar portion along the track setting of bar portion 312 bendings on each anchor point 321; Access Division 322 is in order to be positioned at bar portion 312 angle that desire is impacted, and in the present embodiment, Access Division 322 is a pin.

Seize assembly 33 on both sides by the arms in order to seize determinand 2 on both sides by the arms; Seize assembly 33 on both sides by the arms and link with slideway 35, and slideway 35 is arranged on the workbench 34, therefore, seizing assembly 33 on both sides by the arms can relatively move with fixed part 313.

For content of the present utility model is more readily understood, below with reference to Fig. 3 A and 3B, an example develops simultaneously, with the step that explanation utilizes the impact test apparatus 3 of the utility model preferred embodiment to test a determinand 2, it is arranged on the examination criteria of the critical impulse value of the determinand 2 of seizing assembly 33 on both sides by the arms as determinand 2 brittle ruptures with one.

As shown in Figure 3A, the determinand 2 that the impact test apparatus 3 of the utility model preferred embodiment is tested is a discs 21, and wherein discs comprises an opening 211 and a cd side 212; Note that impact test apparatus 3 also can carry out impulse test at other determinand, for example determinand also can be metal, plastics or concrete material test piece.

At first, suitable impact portion is changed at the position of selected desire test, and for example: desire is tested perforate 211, promptly selects the hammer body of tack, desires test light card 212, then selects the cone of tip.Discs 21 is seized on both sides by the arms in seizing assembly 33 on both sides by the arms, and move along slideway 35 and to seize assembly 33 on both sides by the arms, arrive the position that discs 21 desires are impacted until impact portion 311.

Please refer to Fig. 3 B, bar portion 312 is bent to the angle that desire is impacted, simultaneously anchor point 321 is inserted in Access Division 322 angle that desire is impacted is fixed in bar portion 312, read bar portion 312 angle of bend that anchor point 321 is marked simultaneously, after ready, Access Division 322 is extracted out from anchor point 321, bar portion 312 just can follow Hooke's law to recover its original shape, therefore, impact portion 311 just can be impacted the position that discs 21 desires are impacted.

At last, the destructiveness of discs 21 after the angle of bend of bar portion 312 and its impact is done record, and repeat above-mentioned steps, seek out the critical impulse value that causes discs 21 brittle ruptures with different angles.

Please refer to Fig. 4, it shows the impact test apparatus of another preferred embodiment of the utility model.

The impact test apparatus 4 of another preferred embodiment of the utility model comprises an impact assembly 41, necessarily hyte part 42, is seized assembly 43, a workbench 44, a slideway 45 and a determinand 2 on both sides by the arms.

Wherein impact assembly 41, seize assembly 43 on both sides by the arms, workbench 44 and slideway 5 all with above-mentioned impact assembly 31, to seize assembly 33, workbench 34 and slideway 35 on both sides by the arms identical, seldom give unnecessary details at this.

Characteristic according to the impact test apparatus 4 of another preferred embodiment of the utility model is its positioning component 42, and the Access Division 422 in the positioning component 42 is a plurality of trips, and has a control module 423 to cooperate its starts; Its start principle is identical with automatic opening and closing umbrella in the daily life.

At first, bar portion 412 is bent to the angle that desire is impacted, and the angle that desire is impacted is fixed in bar portion 412 with Access Division 422, press control module 423, each Access Division 422 all can be packed up to each anchor point 421, and makes bar portion 412 follow Hooke's law to recover its original shape, and impacts determinand 2.

In sum, because of being a kind of, do not need just can obtain the standard of its impact failure via computing with the test stone of the crooked pairing angle of bend of bar portion as judgement disc brittle rupture according to impact test apparatus of the present utility model; And it has the assembly of seizing on both sides by the arms, and determinand is fixed, and after impacting determinand, determinand is difficult for flying out and injures the tester, is a kind of simple to operate and safe impact test apparatus.

The above only is for example, but not is restriction.Anyly do not break away from spirit of the present utility model and category, and, all should be contained in the scope of claim its equivalent modifications of carrying out or change.

Claims

1, a kind of impact test apparatus in order to test a determinand, is characterized in that comprising:

One impacts assembly, and it has an impact portion, a bar portion and a fixed part, and these bar portion two ends are connected with this impact portion and this fixed part respectively, and this bar portion is made of elastic plastic material, and this bar portion is flexible, and this impact portion is relative with this determinand and establish;

Certain hyte part, it is relative with this bar portion and establish, and has a plurality of anchor points, and an end of this bar portion is fixed in stiff end, and the other end of this bar portion is removable along such anchor point; And

One seizes assembly on both sides by the arms, and it is in order to fix this determinand.

2, impact test apparatus as claimed in claim 1 is characterized in that also comprising:

One workbench, it carries this seizes assembly and this fixed part on both sides by the arms.

3, impact test apparatus as claimed in claim 2, it is relative with this fixed part removable that wherein this seizes assembly on both sides by the arms.

4, impact test apparatus as claimed in claim 1, wherein the flexure operation of this bar portion meets Hooke's law.

5, impact test apparatus as claimed in claim 1, wherein each anchor point comprises an Access Division in order to this bar portion of holding.

6, impact test apparatus as claimed in claim 1, wherein this impact portion is a cone.

7, impact test apparatus as claimed in claim 1, wherein this impact portion is a hammer body.

8, impact test apparatus as claimed in claim 1, wherein this determinand is a discs.

9, impact test apparatus as claimed in claim 8, wherein this impact portion is impacted a side of the cd side of this discs.

10, impact test apparatus as claimed in claim 8, wherein this impact portion is impacted a perforate of this discs.