CN2080174U - Three shaft high speed shearing impact testing device - Google Patents
Three shaft high speed shearing impact testing device Download PDFInfo
- Publication number
- CN2080174U CN2080174U CN 90221128 CN90221128U CN2080174U CN 2080174 U CN2080174 U CN 2080174U CN 90221128 CN90221128 CN 90221128 CN 90221128 U CN90221128 U CN 90221128U CN 2080174 U CN2080174 U CN 2080174U
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- China
- Prior art keywords
- sealing shroud
- test specimen
- cylinder body
- impact
- high pressure
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model is characterized in that in the axial compressive force system of traditional uniaxial high speed shearing impact testing device, on the track of a force in stick 4 and a force out stick 6, a high pressure cylinder 5 which is used to store a testing piece 8 and apply measurement of pressure (sigma-[2]= sigma-[3]) to the testing piece 8 is provided. The device improved can make an axial impact loading testing to the testing piece in the condition of side pressure (sigma-[2 sigma-3]). The testing is more near a practical situation that material is acted by impact stress field under the state of ambient pressure. Dependable basis is provided for dynamic response study and practice of material damage.
Description
The utility model relates to a kind of axial impact load testing machine that the dynamic load characteristic of rock or other material is studied.
Before this, Chinese scholars adopts single shaft high speed impact (shearing) testing machine that can't apply side pressure to test specimen to the dynamic load The Characteristic Study of rock or other material (as metal, bone class, compound substance etc.) always.In fact, shock stress field such as for example be subjected to that at rock materials such as explosion, Drilling and metal parts, bone class are sheared do the time spent, be to be in to be subjected under the confined pressure state.So, data that obtain from uniaxial impact (shearing) testing machine and actually differ far away, approximate composition is more, can't make that people provide more approaching with actual engineering, data to be to instruct engineering practice more accurately and reliably.
The purpose of this utility model is intended to according to the problems referred to above existing single shaft high speed shear impact testing machine be improved, to obtain a kind ofly at test specimen side pressure (σ being arranged
2=σ
3) time carry out three high speed shear impact test apparatus that axial impact loads so that test more approaches the be hit actual conditions of stress field effect of material under the confined pressure state.
For achieving the above object, the utility model to mainly by air bubble, impact rod, emission (big gun) pipe, force feeding rod, uniaxial impact test unit that exert oneself rod and low pressure (LP) cylinder are formed improves: on the force feeding rod of the axle pressure system of installing and the track between the rod of exerting oneself, be provided with and be used for the seasoning test specimen and apply side pressure (σ to it
2=σ
3) high pressure cylinder.
Compared with prior art, because the utility model has added high pressure cylinder in original device, make that the device after improving can be to test specimen at side pressure (σ
2=σ
3) carry out the axial impact load test under the condition, thereby make test more approach under the confined pressure state, the be hit actual conditions of stress field effect of material, for providing foundation accurately and reliably to later analysis and judgement, design and construction in the research of the dynamic response of material damage and the practice.
Fig. 1 is three high speed shear impact test apparatus synoptic diagram.
Fig. 2 is an impulse test high pressure cylinder diagrammatic cross-section.
Fig. 3 is a shear test high pressure cylinder diagrammatic cross-section.
Below in conjunction with drawings and Examples the utility model is done further more detailed description: as shown in Figure 1, the utility model by air bubble 1, impact rod 2, emission (big gun) pipe 3, force feeding rod 4, high pressure cylinder 5, exert oneself rod 6 and low pressure (LP) cylinder 7 form.It is in the axle pressure system of traditional uniaxial impact test unit, on the force feeding rod 4 and the track of rod between 6 of exerting oneself, is provided with and is used for the seasoning test specimen and applies side pressure (σ to it
2=σ
3) high pressure cylinder 5.
Shown in Fig. 2,3, high pressure cylinder 5 mainly is made up of cylinder body 9, elastic seal cartridge 11, orienting sleeve 14, end cap 15 and elastic fulcrum bar 16 and impact bar sleeve pipe 17.Cylinder body 9 has the garden cylindrical cavity of a both ends open, and its axis and assembly axis are to the pressure system dead in line, and there is highly pressurised liquid manhole appendix 18 at cylinder body 9 middle parts; Elastic seal cartridge 11 is the garden tubular sleeve, can make by rubber, the oriented flange that turns up in its two ends, the flange external diameter is identical with the cylinder body cavity diameter, and the internal diameter of sealing shroud 11 is identical with test specimen 8 diameters, and its length is greater than test specimen length but less than the cylinder body cavity length, during test, test specimen 8 is placed on the middle part of sealing shroud 11, sealing shroud 11 is placed cylinder body cavity middle part again, the outer wall of sealing shroud 11 and its two ends flange are inboard to form the airtight annular space of a storage high pressure liquid with the cylinder body cavity wall; Orienting sleeve 14 is for there being the step Cylinder of center pit, two orienting sleeves 14 are placed near the two ends of sealing shroud 11, the garden external diameter of its less Cylinder in the cylinder body cavity is identical with the cylinder body cavity diameter, its center pit garden internal diameter is identical with the internal diameter of sealing shroud 11, its part outside cylinder body 9 cavitys cooperates fixing with end cap 15, orienting sleeve 14 is used to keep elastic fulcrum bar 16, impact bar 13 and shears pipe 12 and move on the direction of propagation of impulsive force, also can locate sealing shroud 11 simultaneously and sealing function is arranged, because on the inside and outside garden of orienting sleeve 14, be equipped with O-ring seals 18; The diameter of garden cylindricality elastic fulcrum bar 16 is identical with sealing shroud 11 internal diameters, and its length is to get final product from the about test specimen length outside high pressure cylinder of test specimen end face in the high pressure cylinder; Impact bar sleeve pipe 17 internal diameters are identical with impact bar 13 diameters, and its external diameter is identical with sealing shroud 11 internal diameters, and its length is to slightly for getting final product outside the high pressure cylinder from the test specimen end face.During impulse test, the elastic fulcrum bar 16 that the two ends of the test specimen 8 in the sealing shroud 11 are passed from orienting sleeve 14 withstands, and elastic fulcrum bar 16 is to adopt for convenience of the loading and unloading of test specimen; During shear test, shearing pipe 12 that the two ends of test specimen 8 are passed from orienting sleeve 14 and impact bar 13 and the impact bar sleeve pipe 17 that is enclosed within on the impact bar 13 withstand, the effect of impact bar sleeve pipe 17 is in order to increase the diameter of impact bar 13, so that high pressure cylinder 5 needn't be complicated, and structural symmetry.Take away high pressure cylinder 5 and change the long rod 6 of exerting oneself, can carry out the uniaxial impact test.This device rate of strain can surpass 10
4S
-1
Claims (2)
1, a kind of three high speed shear are dashed by test unit, comprise air bubble 1, impact rod 2, emission (big gun) pipe 3, force feeding rod 4, exert oneself rod 6 and low pressure (LP) cylinder 7, it is characterized in that it also comprises being used for seasoning test specimen 8 and applying side pressure (σ to it of being provided with on the force feeding rod 4 of the axle pressure system of device and the track of exerting oneself between excellent 6
2=σ
3) high pressure cylinder 5.
2, according to the test unit described in the claim 1, it is characterized in that wherein said high pressure cylinder 5 is by cylinder body 9, elastic seal cartridge 11, orienting sleeve 14, end cap 15 and elastic fulcrum bar 16 and impact bar sleeve pipe 17 are formed, cylinder body 9 has the garden cylindrical cavity of a both ends open, sealing shroud 11 is the garden tubular sleeve, the oriented flange that turns up in its two ends, the flange external diameter is identical with the cylinder body cavity diameter, the internal diameter of sealing shroud 11 is identical with test specimen 8 diameters, its length is greater than test specimen 8 length but less than the cylinder body cavity length, during use, test specimen 8 is placed on the middle part of sealing shroud 11, again sealing shroud 11 is placed cylinder body cavity middle part, the airtight annular space that the outer wall of sealing shroud 11 and its flange inboard, two ends and cylinder body 9 cavitys form a storage high pressure liquid, two orienting sleeves 14 are placed near the two ends of sealing shroud 11, its garden external diameter in the cylinder body cavity is identical with the cylinder body cavity diameter, its center pit garden internal diameter is identical with the internal diameter of sealing shroud 11, during impulse test, the elastic fulcrum bar 16 that the two ends of the test specimen 8 in the sealing shroud 11 are passed from orienting sleeve 14 withstands, during shear test, shearing pipe 12 that the two ends of test specimen 8 are passed from orienting sleeve 14 and impact bar 13 and the impact sleeve pipe 17 that is enclosed within on the impact bar 13 withstand, garden cylindricality elastic fulcrum bar diameter is identical with sealing shroud 11 internal diameters, its length is from the multispecimen length outside high pressure cylinder of test specimen end face in the high pressure cylinder, impact bar sleeve pipe 17 internal diameters are identical with impact bar 13 diameters, its external diameter is identical with sealing shroud 11 internal diameters, and its length is to slightly for outside the high pressure cylinder from the test specimen end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221128 CN2080174U (en) | 1990-09-28 | 1990-09-28 | Three shaft high speed shearing impact testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221128 CN2080174U (en) | 1990-09-28 | 1990-09-28 | Three shaft high speed shearing impact testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2080174U true CN2080174U (en) | 1991-07-03 |
Family
ID=4899370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90221128 Withdrawn CN2080174U (en) | 1990-09-28 | 1990-09-28 | Three shaft high speed shearing impact testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2080174U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706409B (en) * | 2009-11-04 | 2012-05-23 | 大连交通大学 | Loading device and loading mode for use in measurement of hydrogen diffusion in stress field |
| CN102680338A (en) * | 2012-05-10 | 2012-09-19 | 宁波大学 | Impact expansion loop experiment device and method based on Hopkinson pressure rod |
| CN103278404A (en) * | 2013-05-20 | 2013-09-04 | 洛阳理工学院 | Testing device and method for simulating deep rock mass impact failure |
| CN103454164A (en) * | 2013-09-13 | 2013-12-18 | 安徽理工大学 | Multi-field coupled coal rock impact loading experimental device and method |
| CN103698201A (en) * | 2013-12-24 | 2014-04-02 | 大连理工大学 | Rail type movable triaxial apparatus |
| CN104677754A (en) * | 2015-03-12 | 2015-06-03 | 北京科技大学 | Material rotation and impact response characteristic test system |
| CN103471942B (en) * | 2013-09-18 | 2015-07-01 | 山东科技大学 | Uniaxial impact ground pressure simulation test system and application method of impact ground pressure uniaxial simulation test system |
| CN109506864A (en) * | 2018-12-12 | 2019-03-22 | 上海卫星装备研究所 | Spacecraft shock environment analogue means |
| CN110296904A (en) * | 2019-07-03 | 2019-10-01 | 太原理工大学 | Three axis loading device of servo and method under a kind of coal and rock percussion |
-
1990
- 1990-09-28 CN CN 90221128 patent/CN2080174U/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706409B (en) * | 2009-11-04 | 2012-05-23 | 大连交通大学 | Loading device and loading mode for use in measurement of hydrogen diffusion in stress field |
| CN102680338A (en) * | 2012-05-10 | 2012-09-19 | 宁波大学 | Impact expansion loop experiment device and method based on Hopkinson pressure rod |
| CN102680338B (en) * | 2012-05-10 | 2014-03-26 | 宁波大学 | Impact expansion loop experiment device and method based on Hopkinson pressure rod |
| CN103278404B (en) * | 2013-05-20 | 2015-06-03 | 洛阳理工学院 | Testing device and method for simulating deep rock mass impact failure |
| CN103278404A (en) * | 2013-05-20 | 2013-09-04 | 洛阳理工学院 | Testing device and method for simulating deep rock mass impact failure |
| CN103454164B (en) * | 2013-09-13 | 2016-02-03 | 安徽理工大学 | Multi-scenarios method coal petrography impact loading experiment device and experimental technique |
| CN103454164A (en) * | 2013-09-13 | 2013-12-18 | 安徽理工大学 | Multi-field coupled coal rock impact loading experimental device and method |
| CN103471942B (en) * | 2013-09-18 | 2015-07-01 | 山东科技大学 | Uniaxial impact ground pressure simulation test system and application method of impact ground pressure uniaxial simulation test system |
| CN103698201A (en) * | 2013-12-24 | 2014-04-02 | 大连理工大学 | Rail type movable triaxial apparatus |
| CN104677754A (en) * | 2015-03-12 | 2015-06-03 | 北京科技大学 | Material rotation and impact response characteristic test system |
| CN104677754B (en) * | 2015-03-12 | 2018-03-27 | 北京科技大学 | A kind of material rotary impact response characteristic test system |
| CN109506864A (en) * | 2018-12-12 | 2019-03-22 | 上海卫星装备研究所 | Spacecraft shock environment analogue means |
| CN110296904A (en) * | 2019-07-03 | 2019-10-01 | 太原理工大学 | Three axis loading device of servo and method under a kind of coal and rock percussion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |