CN109142105A - A kind of changing load shock peening experiment loading equipemtn - Google Patents
A kind of changing load shock peening experiment loading equipemtn Download PDFInfo
- Publication number
- CN109142105A CN109142105A CN201811181870.8A CN201811181870A CN109142105A CN 109142105 A CN109142105 A CN 109142105A CN 201811181870 A CN201811181870 A CN 201811181870A CN 109142105 A CN109142105 A CN 109142105A
- Authority
- CN
- China
- Prior art keywords
- impact bar
- impact
- spring
- bar
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011068 loading method Methods 0.000 title claims abstract description 40
- 230000035939 shock Effects 0.000 title claims abstract description 27
- 238000002474 experimental method Methods 0.000 title abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims abstract description 12
- 238000005381 potential energy Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 abstract description 27
- 238000012545 processing Methods 0.000 abstract description 7
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
Abstract
The present invention relates to material surface shock peening technical field of test equipment, loading equipemtn is tested more particularly to a kind of changing load shock peening, it includes rack and cam driving gear, rack connection has the impact bar being axially movable, impact bar couples with housing slide, spring is equipped between impact bar and rack, when impact bar is mobile, spring can be made to generate elastic potential energy, impact bar is equipped with regulating part, pass through the pretightning force of the adjustable spring of the regulating part, cam driving gear couples with impact bar, the axial movement of impact bar may be implemented by cam driving gear, impact bar, which also couples, impact assembly and sensor.The present invention has monnolithic case essence small compared with previous material impact strengthening device, it is convenient that careful processing is carried out to laboratory level material for test, there is the multistage regulative mode for shock loading and loading frequency simultaneously, the situation of change that can also realize simultaneous observation record running parameter, ensure that and strengthen the high-efficient homework of experiment in load impacting.
Description
Technical field
The present invention relates to material surface shock peening technical field of test equipment, and in particular to a kind of changing load impact is strong
Change experiment loading equipemtn.
Background technique
In recent years with the development of engineering technology, the performance of material is put forward new requirements, it is desirable that material is in addition to needing
There are certain stiffness and strength, at the same also need to improve by reasonable processing technology and its processing method material and its
The wearability and fatigue durability of processing component, so that the part center portion processed still has good toughness and intensity, it is right
Shock loading has good resistant function.
Material surface shock peening treatment process is complex, and technical process directly affects the residual of material near surface generation
The state that overbottom pressure stress and its stress field are distributed on the surface of the material.Therefore it needs to characterize material property by Experimental Study System and mention
Processing technology and its technological parameter requirement risen, makes material have the institutional framework of demand, and then it is hard to improve material surface
The performance of degree, yield strength and fatigue life, material obtain biggish improvement.
The research of material surface shock peening treatment process is mainly realized by experimental method, by test material
Using the processing of different technical parameters, with the physical characteristic of the variation characteristic of the substructure tissue of research material and material.For
This corresponding testing equipment comes into being, as to disclose one kind more for patent of invention that number of patent application is CN200810242905.4
Function flexibility composite material impact test apparatus；Number of patent application is that the patent of invention of CN201711396710.0 discloses one kind
Digitize fatigue impact test apparatus and test method.
Previous material impact strengthening device monnolithic case is larger, is difficult to carry out careful place for laboratory level material for test
Reason, while there is also certain deficiencies for the adjusting of shock loading and loading frequency.As shown in figure 5, material surface impact at present
Strengthen experiment load loading equipemtn be generally made of gravitational thrusts system and monitoring system, the load of test specimen mainly by according to
Moving parts by gravity inertial impact is completed, since loading system needs potential energy height larger, loading frequency also compared with
It is low, it is not able to satisfy impact force and flexibly changes, the requirement of high loading frequency.
Summary of the invention
The shortcomings that in order to overcome in the presence of the prior art, the present invention provide a kind of changing load shock peening experiment load
Equipment, the size and its loading frequency of shock loading needed for which can adjust according to parameter preset.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows:
A kind of changing load shock peening experiment loading equipemtn, including rack and cam driving gear, the rack connection has can
The impact bar of axial movement, impact bar couple with housing slide, and spring is equipped between the impact bar and rack, and impact bar is mobile
When, spring can be made to generate elastic potential energy, impact bar is equipped with regulating part, passes through the preload of the adjustable spring of the regulating part
Power, the cam driving gear couple with impact bar, and the axial movement of impact bar may be implemented by cam driving gear, described
Impact bar connection has impact assembly.
Preferably, the cam driving gear includes rocking bar, cam and motor, and the rocking bar and rack are hinged, rocking bar
Both ends couple with impact bar and cam respectively, and the motor is coupled by speed change gear with cam.
Preferably, the regulating part is nut, the nut and impact bar thread connection.
Preferably, the impact bar or impact assembly are equipped with sensor.
Preferably, the spring is set in outside impact bar, and the both ends of spring couple with rack and impact bar respectively, impact bar
It is equipped with the washer coupled with spring or protrusion.
Compared with prior art, the advantageous effect of present invention is that:
Device structure is simple, component compact layout, and manufacturing cost is low；Using manual vertical adjusting and fixed mechanism, greatly improve
The convenience of equipment installation, disassembly and operation；This equipment also has the control mode of a variety of shock loadings: one by adjusting manually
The pretightning force size of section loading spring is controlled, and two can also be controlled by replacing the gear drive ratio size of transmission system
System, three can adjust the revolving speed of motor directly also to realize the control of impact loading, to ensure that impact loading is a variety of strong
The high-precision of degree adjusts control；Another experiment percussion mechanism can increase checking device, in shock loading loading procedure, can observe in real time
The size of impact force and the variation of load frequency, so that relatively high required precision may be implemented in this equipment in production run.
Solve current material surface impacts strengthen experimental facilities volume it is excessive, structure is complicated, the weak problem of ability of regulation and control,
Realize the demand of the production run personnel changing load shock peening experiment loading equipemtn more powerful to function.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure；
Fig. 2 is perspective view of the invention；
Fig. 3 is rocker structure schematic diagram of the present invention；
Fig. 4 is the structural schematic diagram of cam of the present invention；
Fig. 5 is the structure chart of the prior art；
Wherein: 1 is rack, and 2 be impact bar, and 3 be regulating part, and 4 be spring, and 5 be washer, and 6 be rocking bar, and 7 be hoistable platform, and 8 are
Motor, 9 be sensor, and 10 be fixture, and 11 be impact head, and 12 be test specimen, and 13 be test specimen fixed station, and 14 be cam, and 15 be speed change
Device, 16 be pedestal, and 17 be control system, and 18 be control system route, and 19 be servo motor, and 20 be retarder, and 21 be reel,
22 be steel wire, and 23 be counterweight, and 24 be impact head, and 25 be guide rail, and 26 be test specimen, and 27 be fixture.
Specific embodiment
To keep the purpose, technical solution and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In drawings and examples, technical solution in the embodiment of the present invention more clearly described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figures 1 to 3, a kind of changing load shock peening experiment loading equipemtn includes rack 1 and cam driving gear,
The connection of rack 1 has the impact bar 2 being axially movable, and impact bar 2 is slidably connected with rack 1, and rack 1 is equipped with corresponding through-hole.
It is equipped with spring 4 between impact bar 2 and rack 1, when impact bar 2 is mobile, spring 4 can be made to generate elastic potential energy, set on impact bar 2
There is regulating part 3, by the pretightning force of the adjustable spring 4 of regulating part 3, cam driving gear couples with impact bar 2, by convex
The axial movement of impact bar 2 may be implemented in wheel drive unit, and the connection of impact bar 2 has impact assembly.
Specific: when equipment works, cam driving gear drives impact bar 2 to move upwards, and compressed spring 4 generates elasticity
Potential energy, impact bar 2 are axially moved under the elastic potential energy effect of spring 4, drive the impact assembly being coupled to test specimen
Material carries out impact operation.Impact strength suffered by material for test can be changed by regulating part 3.
Cam driving gear includes rocking bar 6, cam 14 and motor 8, and rocking bar 6 and rack 1 are hinged, the both ends difference of rocking bar 6
With 14 contact connection of impact bar 2 and cam, motor 8 is coupled by speed change gear 15 with cam 14.When motor 8 rotates, pass through
Speed change gear 15 is rotated with moving cam 14, and rocking bar 6 and cam 14 are contact connection, and the rotation of cam 14 drives rocking bar 6 to make thick stick
Bar movement, and then worked with certain continuous compressed spring 4 of frequency.It is specific: 8 output shaft of motor and speed change gear 15
Input shaft connection, the output shaft of speed change gear 15 couple with cam 14.
Regulating part 3 can be nut, nut and 2 thread connection of impact bar.When turning nut, thus it is possible to vary spring 4
Collapsing length, when spring 4 is in more relaxed state, the elastic potential energy of spring 4 reduces, it acts on the work on impact bar 2
Firmly reduce, so that impact strength suffered by material for test weakens；When spring 4 is when in a compressed state, the elastic potential of spring 4
It can increase, it acts on the increase of the active force on impact bar 2, so that impact strength suffered by material for test enhances.
After adjusting the pretightning force of spring by regulating part 3, it will lead to impact bar 2 and move up or move down, at this point, actuated by cams
Cam 14 in device cannot contact very well with rocking bar 6, there is situations such as interval between the two.Therefore, actuated by cams when work
Device, which is located at, to be had on height-adjustable hoistable platform 7, the lifting of the shell and hoistable platform 7 of motor 8 and speed change gear 15
Portion is fixedly connected, and after the height of cam driving gear can be adjusted according to initial tension of spring, feeds back to 6 end of rocking bar and cam 14
The size in gap is adjusted.Guarantee the close contact between cam 14 and rocking bar 6, reduces drive gap.
Meanwhile when cam 14 during exercise, under the action of the spring, rocking bar 6 is contacted with cam 14 always, convex in order to prevent
The resistance caused by 6 end of rocking bar in the folding process of impact bar 2 of wheel 14 avoids the interference that process is generated to impact force, convex
The contour structures of wheel 14 as shown in 4 figures, can effectively avoid cause resistance to moving down for impact bar 2 in this way using incomplete form.
Impact assembly uses structure in the prior art, is made of fixture 10 and impact head 11, fixture 10 and punching
It taps the head 11 connections.Fixture 10 can be coupled using screw thread, the locking modes such as tapered sleeve or welding with impact bar 2.
Impact bar 2 or impact assembly are equipped with sensor 9.It can be acquired and be sensed by control system 17 in the equipment course of work
Data in device 9, and then the size of impact loading and loading frequency carry out records of values and storage, in favor of later experiments number
According to analysis processing.
Sensor 9 uses the element in existing, and specific setting is adjusted correspondingly according to this programme, and the adjustment
It would be obvious to one skilled in the art, therefore briefly explain herein, piezoelectric force transducer can be used, lead to
Data collecting card is crossed to acquire signal to characterize the size of impact force and frequency information, while the monitoring operation window of foundation can be passed through
Cause for gossip shows record and the processing of data information.
Spring 4 is set in outside impact bar 2, and the both ends of spring 4 couple with rack 1 and impact bar 2 respectively, solid on impact bar 2
Surely there are the washer 5 coupled with spring 4 or protrusion.One end of rocking bar 6 couples with gasket 5 or projection contacts.
Loading equipemtn main working process: right by adjusting nut 3 after understanding the shock loading demand that test specimen is loaded
Spring 4 applies pretightning force.Test specimen fixed station 13 selects general clamping device to be clamped fixation to test specimen 12, while cooperating difference
The metal gasket of thickness adjusts the height between test specimen 12 and impact head 11.
When motor 8 rotates, rotated by speed change gear 15 with moving cam 14, impact bar 2 is by gasket 5 in rocking bar 6
Spring 4 is further compressed under effect, makes it have certain load distance.When cam 14 is transported from maximum lift to minimum lift
When dynamic variation, impact bar 2 moves downward under the action of spring 4, generates shock loading to test specimen 12, the size of shock loading can
By adjusting the adjustment of nut 3, shock loading frequency can be realized by adjusting the revolving speed of speed change gear 14 and motor 8.Equipment work
The data in sensor 9 can be acquired during work by control system 17, the size and loading frequency of impact loading are counted
Value record and storage, in favor of later experiments Data Analysis Services.
Test specimen 12 in the present invention can also be with certain size required standard test specimen, at this point it is possible to be carried by impact
The shock loading that lotus component is formed studies the impact fatigue characteristic of measured material, while can be to loaded load and loading frequency
It is adjusted setting.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (5)
1. a kind of changing load shock peening tests loading equipemtn, it is characterised in that: including rack (1) and cam driving gear,
Rack (1) connection has the impact bar (2) being axially movable, and impact bar (2) is slidably connected with rack (1), the impact bar
(2) spring (4) are equipped between rack (1), when impact bar (2) is mobile, spring (4) can be made to generate elastic potential energy, impact bar
(2) regulating part (3) are equipped with, by the pretightning force of regulating part (3) the adjustable spring (4), the cam driving gear with
Impact bar (2) connection, the axial movement of impact bar (2) may be implemented by cam driving gear, and impact bar (2) connection has
Impact assembly.
2. a kind of changing load shock peening according to claim 1 tests loading equipemtn, it is characterised in that: the cam
Driving device includes rocking bar (6), cam (14) and motor (8), the rocking bar (6) and rack (1) hingedly, the both ends of rocking bar (6)
Couple respectively with impact bar (2) and cam (14), the motor (8) is coupled by speed change gear (15) with cam (14).
3. a kind of changing load shock peening according to claim 1 tests loading equipemtn, it is characterised in that: the adjusting
Part (3) is nut, the nut and impact bar (2) thread connection.
4. a kind of changing load shock peening according to claim 1 tests loading equipemtn, it is characterised in that: the impact
Bar (2) or impact assembly are equipped with sensor (9).
5. a kind of changing load shock peening according to claim 1 tests loading equipemtn, it is characterised in that: the spring
(4) it is set in impact bar (2) outside, the both ends of spring (4) couple with rack (1) and impact bar (2) respectively, and impact bar is set on (2)
There are the washer (5) coupled with spring (4) or protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181870.8A CN109142105A (en) | 2018-10-11 | 2018-10-11 | A kind of changing load shock peening experiment loading equipemtn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181870.8A CN109142105A (en) | 2018-10-11 | 2018-10-11 | A kind of changing load shock peening experiment loading equipemtn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109142105A true CN109142105A (en) | 2019-01-04 |
Family
ID=64811560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811181870.8A Pending CN109142105A (en) | 2018-10-11 | 2018-10-11 | A kind of changing load shock peening experiment loading equipemtn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142105A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696353A (en) * | 2019-01-30 | 2019-04-30 | 河北科技大学 | A kind of product design strength of materials test device |
| CN110231226A (en) * | 2019-05-21 | 2019-09-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of dynamic compressive test method of rubber seal under electric field action |
| CN110398336A (en) * | 2019-07-30 | 2019-11-01 | 燕山大学 | Sewing-machine foot high-frequency percussion fatigue tester |
| CN112129659A (en) * | 2020-09-24 | 2020-12-25 | 华东理工大学 | Portable dynamic indentation testing device and testing method thereof |
| CN112763303A (en) * | 2020-12-14 | 2021-05-07 | 山东大学 | Full-strain-rate dynamic and static combined loading multifunctional rock mechanical test system and method |
| CN113237624A (en) * | 2021-04-29 | 2021-08-10 | 清华大学 | Impact fatigue test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5696312A (en) * | 1995-11-13 | 1997-12-09 | Brigham Young University | Accelerated impact testing apparatus |
| KR20070097257A (en) * | 2006-03-29 | 2007-10-04 | 금호타이어 주식회사 | Tire sidewall impact test machine |
| US20100018296A1 (en) * | 2006-06-06 | 2010-01-28 | Zacny Kris A | Penetrometer with light-weight, electronically-controlled hammering module |
| CN106066290A (en) * | 2016-05-26 | 2016-11-02 | 湘潭大学 | A kind of coating failure assay device considered under load impacting and thermal shock common loop effect |
| CN208872610U (en) * | 2018-10-11 | 2019-05-17 | 太原科技大学 | A kind of changing load shock peening experiment loading equipemtn |
-
2018
- 2018-10-11 CN CN201811181870.8A patent/CN109142105A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5696312A (en) * | 1995-11-13 | 1997-12-09 | Brigham Young University | Accelerated impact testing apparatus |
| KR20070097257A (en) * | 2006-03-29 | 2007-10-04 | 금호타이어 주식회사 | Tire sidewall impact test machine |
| US20100018296A1 (en) * | 2006-06-06 | 2010-01-28 | Zacny Kris A | Penetrometer with light-weight, electronically-controlled hammering module |
| CN106066290A (en) * | 2016-05-26 | 2016-11-02 | 湘潭大学 | A kind of coating failure assay device considered under load impacting and thermal shock common loop effect |
| CN208872610U (en) * | 2018-10-11 | 2019-05-17 | 太原科技大学 | A kind of changing load shock peening experiment loading equipemtn |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696353A (en) * | 2019-01-30 | 2019-04-30 | 河北科技大学 | A kind of product design strength of materials test device |
| CN109696353B (en) * | 2019-01-30 | 2021-03-12 | 河北科技大学 | Material strength testing device for product design |
| CN110231226A (en) * | 2019-05-21 | 2019-09-13 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of dynamic compressive test method of rubber seal under electric field action |
| CN110398336A (en) * | 2019-07-30 | 2019-11-01 | 燕山大学 | Sewing-machine foot high-frequency percussion fatigue tester |
| CN110398336B (en) * | 2019-07-30 | 2023-02-28 | 燕山大学 | Sewing machine presser foot high-frequency impact fatigue testing machine |
| CN112129659A (en) * | 2020-09-24 | 2020-12-25 | 华东理工大学 | Portable dynamic indentation testing device and testing method thereof |
| CN112129659B (en) * | 2020-09-24 | 2022-01-21 | 华东理工大学 | Portable dynamic indentation testing device and testing method thereof |
| CN112763303A (en) * | 2020-12-14 | 2021-05-07 | 山东大学 | Full-strain-rate dynamic and static combined loading multifunctional rock mechanical test system and method |
| CN113237624A (en) * | 2021-04-29 | 2021-08-10 | 清华大学 | Impact fatigue test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109142105A (en) | A kind of changing load shock peening experiment loading equipemtn | |
| CN105891036B (en) | A kind of sliding compound friction abrasion test device of punching and its method | |
| CN107179183B (en) | Flexural pivot three-dimensional loading fatigue test device | |
| CN208872610U (en) | A kind of changing load shock peening experiment loading equipemtn | |
| CN106990007B (en) | Method and device for testing relation between residual stress of material and surface hardness | |
| JPH1164166A (en) | Apparatus for testing dampening force of vibration damper | |
| CN208334100U (en) | A kind of bending fatigue test device of sheet metal specimens | |
| CN109540521A (en) | A kind of ball bearing abrasion original reason test platform | |
| CN110411874B (en) | Spring fatigue detection device and detection method | |
| CN116337669A (en) | Friction and wear testing machine | |
| CN115356225A (en) | Hardness on-line detection device and detection method thereof | |
| CN106989886A (en) | A kind of mechanical structure collision performance simulation experiment platform | |
| CN109655357A (en) | A kind of stamping device detecting lathe casting quality | |
| CN103776711A (en) | Guide rail abrasion precision test bed | |
| CN206281725U (en) | A kind of spring fatigue tester | |
| CN107192612A (en) | A kind of tension-torsion fatigue test board | |
| DE102011002262B4 (en) | Measuring head for a coordinate measuring machine | |
| CN217484008U (en) | Bending-twisting micro-motion damage test device based on lead screw displacement control | |
| CN208872609U (en) | A kind of digitized materials surface impacts reinforcing experiment test device | |
| CN114088553B (en) | Large-tonnage inhaul cable test device | |
| CN109142104B (en) | Digital material surface impact strengthening experiment testing device | |
| CN211292372U (en) | Automatic pressure testing device | |
| CN209542327U (en) | A kind of stamping device detecting lathe casting quality | |
| CN210719649U (en) | Automobile plate spring endurance test device | |
| CN207601914U (en) | A kind of cash box positioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |