CN105136578B - A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence - Google Patents
A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence Download PDFInfo
- Publication number
- CN105136578B CN105136578B CN201510607538.3A CN201510607538A CN105136578B CN 105136578 B CN105136578 B CN 105136578B CN 201510607538 A CN201510607538 A CN 201510607538A CN 105136578 B CN105136578 B CN 105136578B
- Authority
- CN
- China
- Prior art keywords
- inertia force
- transfer beam
- achievable
- tension test
- drop impact
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence, belong to technical field of test equipment, including drop hammer tester, beam type power transmission direction switching mechanism, spacing framework and test specimen connector.For the present invention by transfer beam device, the vertical impact load that will can drop hammer is converted into horizontal stretch load, eliminates drop hammer tester tup vertically inertia stress effect caused by impact；Experimental rig structure simple structure simultaneously, overall collapse phenomenon is not susceptible to, processing and manufacturing is simple and easy to control, and passes through the accurate Control experiment test specimen stretcher strain of spacing framework energy, guarantee test safety；By adjusting sample dimensions and dropping hammer energy, strain rate can be loaded with Adjustment Tests, can simulate engineering structure material be hit load when strain rate effect and dynamic mechanical.
Description
Technical field
The invention belongs to technical field of test equipment, more particularly to a kind of achievable drop impact for eliminating inertia force influence
Tension test transfer beam device.
Background technology
At present, carrying out the equipment of structure shock resistance tension test can mainly divide according to the scope of material loading strain rate
For two kinds, correspond respectively to use when the Hopkinson bar experimental rig and the medium speed's impact that use during high strain-rate drops hammer
Percussion mechanism, and using quick loading actuator during low velocity impact.Low speed during substantial amounts of example belongs in Practical Project
Impact process, the experiment for problems, drop impact device are a kind of simple, reliable loading devices.
In the existing vertical tensile impact conversion equipment that drops hammer, drop hammer and fallen vertically along guide rail, vertical impact test pedestal
The test specimen of upper fixation, so as to study dynamic mechanical of the test specimen under impact load.But due to depositing for drop impact inertia force
, be placed in drop hammer in force snesor will measure inertia force simultaneously, so as to influence reasonable evaluation structure component impact resistance.And
And vertical tensile impact conversion device structure complexity, experiment sample dimensions are limited, and can not carry out large scale experiment.Dropped hammer existing
In impact tension test truss conversion equipment, drop hammer and fallen vertically along guide rail, vertical shock block, pass through truss conversion equipment
The vertical impact load to drop hammer is converted into horizontal stretch load, so as to eliminate inertia force influence, but because panel point constructs
Itself lateral rigidity of complexity, particularly truss is small, is easily caused truss and destruction of a node or overall collapse destruction occurs, has influence on experiment
The stability and accuracy of data.Meanwhile existing apparatus does not have stopping means, accurate loading can not be realized, has influence on device
Applicability.
The content of the invention
It is not easy rationally to quantify inertia force and test specimen chi when measuring load for the existing vertical tensile impact conversion equipment that drops hammer
The problem of very little limited and existing drop impact tension test truss conversion equipment joint structure complexity and small lateral rigidity, the present invention
Aim to provide a kind of new achievable drop impact tension test transfer beam device for eliminating inertia force influence, the experimental rig
It can be achieved to eliminate influence of the inertia force to result of the test, horizontal stretch experiment, same fashionable dress carried out under vertical Impact Load
Put simple structure and be not susceptible to lateral bucking phenomenon, processing and manufacturing is simple and easy to control, and can accurately control examination by spacing framework
Test specimen stretcher strain is tested, guarantee test safety is convenient to carry out the design and manufacture of experimental rig, and can more really simulate reality
Dynamic mechanical of the various types of materials under Impact Load in structure.
To achieve the above object, the technical solution adopted in the present invention is that the achievable elimination inertia force influence falls
Hammering blow tension test transfer beam device, including drop hammer tester, beam type power transmission direction switching mechanism, spacing framework and test specimen
Connector；
The drop hammer tester includes more guide rails, the positioning fixture being fixed on more guide rails, is hooked on positioning fixture
On hammer body；
The beam type power transmission direction switching mechanism is made up of two " L " ellbeams and the vertical columns of both sides with fixed diagonal brace,
" L " ellbeam includes two horizontal transfer beams, two vertical transfer beams, node end plate, joint lug plate, node bearing pin, roller bearing,
Vertical transfer beam bottom sets positioning screw, and wedge-shaped bloom, voussoir axle are set among horizontal transfer beam, and " L " ellbeam passes through flat board
Hinge is fixed on vertical columns, fixes on diagonal brace；
The spacing framework is located at below wedge-shaped bloom, including box beam, frame column, framework diagonal brace；
The test specimen connector includes end plate, otic placode, sensor, test specimen, bearing pin.
Further explanation is made to the present invention below.
The every horizontal transfer beam is integrally formed or by being welded into one with a vertical transfer beam respectively.
Further, the horizontal transfer beam medial end is equipped with two pieces of joint lug plates, and each roller bearing is led to respectively
Cross bearing pin and joint lug plate is fastened in horizontal transfer beam, wedge-shaped bloom is placed among two roller bearings and formed vertically
Moveable hinge.
Further, the horizontal transfer beam outboard end is equipped with one piece of node end plate, and every piece of node end plate is connected with
Two pieces of joint lug plates, node bearing pin are each passed through joint lug plate and are connected to form flat board hinge with joint lug plate.
Further, the box beam is embedded with three with frame column and framework diagonal brace by being welded into one, box beam
Individual linear bearing, voussoir axle are inserted vertically into linear bearing.
Above-mentioned horizontal transfer beam is preferably two, and vertical transfer beam is preferably two, and vertical columns are preferably two, fixed
Diagonal brace is preferably two, and frame column is preferably two, and framework diagonal brace is preferably two.
By said mechanism device, " L " ellbeam forms flat board hinge by joint lug plate and node bearing pin and is fixed on
Column is determined with fixing on diagonal brace.Wedge-shaped bloom in the middle part of beam type power transmission direction switching mechanism is vertically placed on shape among two bearings
Into moveable hinge.When drop hammer wedge-shaped bloom of the tup action in the middle part of beam type power transmission direction switching mechanism when, wedge-shaped bloom band moving axis
Holding makes " L " ellbeam that the unitary rotation using flat board hinge as pivot occur, and leads to the vertical impulsive force of hammer body in rotation process
Cross " L " ellbeam and pass to test specimen connector, that is, realize horizontal stretch experiment of the test specimen under vertical Impact Load, simultaneously
Because sensor is located on test specimen connector so as to eliminate the influence of drop impact inertia force.Wedge-shaped bloom along linear bearing to
Collided after lower translation certain distance with spacing framework and stop continuing to move, so as to realize the mesh of Control experiment load and displacement
's.
Compared with prior art, the beneficial effects of the invention are as follows：The achievable drop impact tension test of the present invention, and eliminate
In test existing inertia force influence, it can really simulate stress feelings of the practical structures component under Impact Load
Condition, while experimental rig structure simple structure, overall collapse phenomenon is not susceptible to, processing and manufacturing is simple and easy to control, reliable and stable.
The present invention is further elaborated with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention；
Fig. 2 is the structural representation (facing) of beam type power transmission direction switching mechanism of the present invention；
Fig. 3 is the structural representation (vertical view) of beam type power transmission direction switching mechanism of the present invention；
Fig. 4 is the structural representation of spacing framework of the present invention；
Fig. 5 is the structural representation of test specimen connector of the present invention；
Fig. 6 is the structural representation of wedge-shaped bloom of the present invention.
In figure：
1,2- drops hammer guide rail, 3- positioning fixtures, 4- hammer bodies,
5- wedge shape blooms, 6,7,8,9,25,26,27,28,29,30,31,32- joint lug plates,
10,11,33,34- node bearing pins, 12,13- roller bearings, 14,15,16- voussoir axles,
17,18- horizontal transfer beams, 19,20- vertical transfer beams, 21,22,23,24- positioning screws,
35,36,37,38- node end plates, 39,40- vertical columns, 41,42- fix diagonal brace,
43- box beams, 44,45- framework diagonal braces, 46,47- frame columns,
48- test specimens, 49,50,59,60,63,64- end plates, 51,52,53,54,57,58- otic placodes,
55,56- bearing pins, 61,62- sensors.
Embodiment
A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence is by drop hammer tester, beam
Formula power transmission direction switching mechanism, spacing framework and test specimen connector composition, referring to Fig. 1.Drop hammer tester as shown in figure 1, its by
Guide rail 1,2, positioning fixture 3, hammer body 4 form.Positioning fixture 3 is fixed on guide rail 1 and 2, and hammer body 4 is hooked on positioning fixture 3.
Beam type power transmission direction switching mechanism as shown in Figures 2 and 3, its by wedge-shaped 5,12 pieces of otic placodes 6 of bloom, 7,8,9,25,26,27,
28th, 29,30,31,32, four 10,11,33,34, two roller bearings 12 of root node bearing pin, 13, three voussoir axles 14,15,16,
Two horizontal transfer beams 17,18, two vertical transfer beams 19,20, four positioning screws 21,22,23,24, four pieces of node end plates
35th, 36,37,38, two vertical columns 39,40, two fixed diagonal braces 41,42 combine.Horizontal transfer beam 17,18 respectively with
A piece vertical transfer beam 19,20 is integrally formed or by being welded into one.Horizontal transfer beam 17,18 ends are welded with two pieces
Otic placode 6,7,8,9, each roller bearing 12,13 are fastened on level by bearing pin 10,11 and joint lug plate 6,7,8,9 respectively
In transfer beam 17,18, wedge-shaped bloom 5 be placed on vertically among two roller bearings 12,13 formed moveable hinges and allowing have it is certain
Rotate and translate.Horizontal transfer beam 17,18 other ends are welded with one piece of node end plate 35,36, and every piece of node end plate 35,36 connects
There are two pieces of joint lug plates 25,26,27,28, node bearing pin 33,34 is each passed through joint lug plate 25,26,27,28 and joint lug plate
29th, 30,31,32 it is connected to form flat board hinge.Spacing framework as shown in figure 4, its by box beam 43, frame column 46,47, framework diagonal brace
44th, 45 composition.Box beam 43 is with frame column 46,47 and framework diagonal brace 44,45 by being welded into one.Test specimen connector is as schemed
Shown in 5, it is by six pieces of end plates 49,50,59,60,63,64, six pieces of otic placodes 51,52,53,54,57,58, sensor 61,62, pin
Axle 55,56, test specimen 48 form.Otic placode 51,52,53,54,57,58 is connected with end plate 49,50,59,60 respectively by welding, is passed
Sensor 61,62 both ends are connected with end plate 59,60,63,64 respectively by bolt, and the both ends of test specimen 48 pass through welding and end plate 63,64
It is connected.
Claims (9)
1. a kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence, it is characterized in that, including fall
Hammer testing machine, beam type power transmission direction switching mechanism, spacing framework and test specimen connector into shape；
The drop hammer tester includes two guide rails (1,2), the positioning fixture (3) being fixed on two guide rails (1,2), is hooked on
Hammer body (4) on positioning fixture (3)；
The beam type power transmission direction switching mechanism is made up of two " L " ellbeams and the vertical columns of both sides with fixed diagonal brace, " L " shape
Beam includes two horizontal transfer beams (17,18), two vertical transfer beams (19,20), node end plate (35,36,37,38), node
Otic placode (6,7,8,9,25,26,27,28,29,30,31,32), node bearing pin (10,11,33,34), roller bearing (12,13),
Vertical transfer beam bottom sets positioning screw (21,22,23,24), and wedge-shaped bloom (5), voussoir axle are set among horizontal transfer beam
(14,15,16), " L " ellbeam are fixed on vertical columns (39,40) by flat board hinge, fixed on diagonal brace (41,42)；
The spacing framework is located at below wedge-shaped bloom (5), including box beam (43), frame column (46,47), framework diagonal brace (44,
45)；
The test specimen connector includes end plate (49,50,59,60,63,64), otic placode (51,52,53,54,57,58), sensor
(61,62), test specimen (48), bearing pin (55,56).
2. the achievable drop impact tension test transfer beam device for eliminating inertia force influence according to claim 1,
It is characterized in that the every horizontal transfer beam (17,18) is integrally formed or passed through with a vertical transfer beam (19,20) respectively
It is welded into one.
3. the achievable drop impact tension test transfer beam device for eliminating inertia force influence according to claim 1,
It is characterized in that horizontal transfer beam (the 17,18) medial end is equipped with two pieces of joint lug plates (6,7,8,9), each roller shaft
(12,13) are held to be fastened in horizontal transfer beam (17,18) by bearing pin (10,11) and joint lug plate (6,7,8,9) respectively,
Wedge-shaped bloom (5) is placed among two roller bearings (12,13) vertically forms moveable hinge.
4. the achievable drop impact tension test transfer beam device for eliminating inertia force influence according to claim 1,
It is characterized in that horizontal transfer beam (the 17,18) outboard end is equipped with one piece of node end plate (35,36), every piece of node end plate
(35,36) are connected with two pieces of joint lug plates (25,26,27,28), node bearing pin (33,34) be each passed through joint lug plate (25,26,
27th, flat board hinge 28) is connected to form with joint lug plate (29,30,31,32).
5. the achievable drop impact tension test transfer beam device for eliminating inertia force influence according to claim 1,
It is characterized in that the box beam (43) and frame column (46,47) and framework diagonal brace (44,45) are by being welded into one.
6. the drop impact tension test beam type of the achievable elimination inertia force influence according to one of Claims 1 to 5 turns
Changing device, it is characterized in that, the box beam (43) is embedded with three linear bearings, and voussoir axle (14,15,16) is inserted vertically into straight line
In bearing.
7. the drop impact tension test beam type of the achievable elimination inertia force influence according to one of Claims 1 to 5 turns
Changing device, it is characterized in that, the horizontal transfer beam (17,18) and vertical transfer beam (19,20) they are two.
8. the drop impact tension test beam type of the achievable elimination inertia force influence according to one of Claims 1 to 5 turns
Changing device, it is characterized in that, the vertical columns (39,40) and fixed diagonal brace (41,42) they are two.
9. the drop impact tension test beam type of the achievable elimination inertia force influence according to one of Claims 1 to 5 turns
Changing device, it is characterized in that, the frame column (46,47) and framework diagonal brace (44,45) they are two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607538.3A CN105136578B (en) | 2015-09-22 | 2015-09-22 | A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607538.3A CN105136578B (en) | 2015-09-22 | 2015-09-22 | A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105136578A CN105136578A (en) | 2015-12-09 |
| CN105136578B true CN105136578B (en) | 2018-01-02 |
Family
ID=54722008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510607538.3A Expired - Fee Related CN105136578B (en) | 2015-09-22 | 2015-09-22 | A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105136578B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784509A (en) * | 2016-03-10 | 2016-07-20 | 长江大学 | Drop-hammer impact loading system |
| CN109708865B (en) * | 2019-01-29 | 2024-01-30 | 杭州邦威机电控制工程有限公司 | A test support for column beam node is experimental |
| CN110618027A (en) * | 2019-11-10 | 2019-12-27 | 大连理工大学 | Novel wedge cantilever beam loading device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5677494A (en) * | 1996-03-05 | 1997-10-14 | Mcdonnell Douglas Corporation | Method for high strain-rate testing of specimens |
| CN102279127A (en) * | 2011-07-05 | 2011-12-14 | 湖南大学 | Conversion device capable of realizing drop hammer tensile impact test |
| CN202372417U (en) * | 2011-12-21 | 2012-08-08 | 西安科技大学 | Road material strength parameter tester based on live load |
| CN104198308A (en) * | 2014-09-15 | 2014-12-10 | 辽宁工程技术大学 | Stretching and pressing integrated impact test machine |
| CN204374012U (en) * | 2015-01-29 | 2015-06-03 | 湖南大学 | A kind of drop impact tension test truss conversion equipment realizing elimination inertia force influence |
| CN204988885U (en) * | 2015-09-22 | 2016-01-20 | 湖南大学 | Can realize eliminating hammer impact tensile test beam type conversion equipment that falls of inertial force influence |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3395021B2 (en) * | 1994-03-29 | 2003-04-07 | 株式会社上島製作所 | Low tensile stress test equipment |
| JP2011149696A (en) * | 2008-05-09 | 2011-08-04 | Kokusai Keisokki Kk | Impact testing device |
-
2015
- 2015-09-22 CN CN201510607538.3A patent/CN105136578B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5677494A (en) * | 1996-03-05 | 1997-10-14 | Mcdonnell Douglas Corporation | Method for high strain-rate testing of specimens |
| CN102279127A (en) * | 2011-07-05 | 2011-12-14 | 湖南大学 | Conversion device capable of realizing drop hammer tensile impact test |
| CN202372417U (en) * | 2011-12-21 | 2012-08-08 | 西安科技大学 | Road material strength parameter tester based on live load |
| CN104198308A (en) * | 2014-09-15 | 2014-12-10 | 辽宁工程技术大学 | Stretching and pressing integrated impact test machine |
| CN204374012U (en) * | 2015-01-29 | 2015-06-03 | 湖南大学 | A kind of drop impact tension test truss conversion equipment realizing elimination inertia force influence |
| CN204988885U (en) * | 2015-09-22 | 2016-01-20 | 湖南大学 | Can realize eliminating hammer impact tensile test beam type conversion equipment that falls of inertial force influence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105136578A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105136578B (en) | A kind of achievable drop impact tension test transfer beam device for eliminating inertia force influence | |
| CN102645380B (en) | Structural timber bend strength tester and structural timber bend strength test method | |
| CN104931366A (en) | Fretting fatigue testing method allowing contact load to be adjusted in real time and testing machine adopting fretting fatigue testing method | |
| CN104269088B (en) | Mechanical experimental device and method for conducting experiment by applying same | |
| La Poutré et al. | Out-of-plane stability of roller bent steel arches—An experimental investigation | |
| CN104749047B (en) | A kind of flexural member Mechanics Performance Testing device and its application method | |
| CN103163016A (en) | Auxiliary device for carrying out axial tension test on quasi brittle materials | |
| CN101251468A (en) | Loading equipment for corrosion test of concrete sample with stress action | |
| CN104535288A (en) | Wind tunnel experiment device for testing bridge aerodynamic parameters under skew wind action | |
| CN107161825A (en) | A kind of elevator door instantaneous kinetic energy measurement apparatus | |
| CN108195680A (en) | A kind of experimental rig for applying different constraints to native unit | |
| CN107179242B (en) | A kind of manual simplified true triaxil tester | |
| CN110186746B (en) | Structure test loading device and test method for keeping lateral direction and axial direction vertical | |
| CN207937290U (en) | A kind of mechanical shock test's platform | |
| CN204374012U (en) | A kind of drop impact tension test truss conversion equipment realizing elimination inertia force influence | |
| CN101881716B (en) | Quantitative tension and compression testing device | |
| CN102183413A (en) | Filament fiber loading and measuring device under Raman environment | |
| CN209215110U (en) | A kind of experimental rig of the uniaxial tensile test suitable for viscoelastic material | |
| CN204988885U (en) | Can realize eliminating hammer impact tensile test beam type conversion equipment that falls of inertial force influence | |
| CN110658078A (en) | Biaxial load adjustable tensile creep testing device and method | |
| RU2292030C1 (en) | Device for testing specimen made of shape memory material | |
| CN113776958B (en) | Roller bending device for bending test | |
| Roiko et al. | Measurement of small cracks initiating from inclusions, Focused Ion Beam notches and drilled holes | |
| CN201965060U (en) | Filament fiber loading and measuring device under Raman environment | |
| CN109085064A (en) | A kind of equipment for detecting the deformation of steel ball resistance to stress |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20180922 |