CN202229974U - Device for testing the tangential rigidity of bonding surface - Google Patents
Device for testing the tangential rigidity of bonding surface Download PDFInfo
- Publication number
- CN202229974U CN202229974U CN2011203262741U CN201120326274U CN202229974U CN 202229974 U CN202229974 U CN 202229974U CN 2011203262741 U CN2011203262741 U CN 2011203262741U CN 201120326274 U CN201120326274 U CN 201120326274U CN 202229974 U CN202229974 U CN 202229974U
- Authority
- CN
- China
- Prior art keywords
- tangential
- faying face
- test specimen
- experiment
- testing
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A device for testing the tangential rigidity of a bonding surface belongs to the field of mechanical design and manufacture. The device comprises an experiment loading device (1) and a tangential experimental component, wherein, an upper test piece (7) is butted with a lower test piece (6), leaving a gap at the interface; pressure plates (3 and 11) are respectively arranged on two surfaces perpendicular to the butted surface of the test pieces, and are fixedly connected through two high-strength bolts (9 and 10), so as to form the tangential experimental component; the high-strength bolts (9 and 10) are symmetric about the interface gap of the upper and lower test pieces; brackets (8 and 5) are distributed on the two sides of the interface gap so as to install an eddy current displacement sensor (4); and a force sensor (14) measuring loading force signals and the eddy current displacement sensor (4) measuring the tangential displacement variation of the bonding surface are connected to a signal acquisition system. Therefore, the device has the advantages of simple machining, convenience in clamping and installation, strong universality, easiness in controlling parameter, and the like.
Description
Technical field
The utility model discloses a kind of device of testing faying face tangential stiffness characteristics, belong to Machine Design and manufacturing field.
Background technology
Lathe and all kinds of machinery are all combined by specific requirement by various parts, and the surface that is in contact with one another between spare part, the parts is called as " faying face ".The a large amount of existence of faying face in physical construction, thus make physical construction or system no longer have continuity, and then caused the complex nature of the problem.Faying face exists contact stiffness and contact damping; Many researchs show; The contact stiffness of faying face accounts for 60%～80% of lathe global stiffness in the lathe, and faying face place contact damping accounts for more than 90% of lathe total damping, and occurring on the lathe that vibration problem has more than 60% is to be derived from faying face.Therefore the joint portion problem is an important foundation problem of research mechanical system; Moving towards complete machine by the single-piece analysis and analyze key issue to be solved and stiffness characteristics experimental study and modeling are mechanical kineticss, also is the important evidence of guaranteeing that lathe complete machine characteristic forecast model is whether correct.
The factor that influences the faying face stiffness characteristics is a lot, and very complicated, and these factors mainly contain:
(1) faying face material (comprising material, hardness etc.);
(2) job operation of faying face (common method: car, mill, dig, grind, scrape etc.);
(3) crudy of faying face (comprising surfaceness, percent ripple, flatness);
(4) the medium situation of faying face (comprise the dry-mate connection face, oily faying face is arranged);
(5) normal plane of faying face is pressed (abbreviation face pressure);
(6) the relative displacement character between faying face (normal direction displacement, tangential displacement, corner);
(7) function of faying face (fixed combinating surface, motion faying face etc.);
(8) structure type at faying face place and size etc.
So numerous influence factors; In addition they to influence rule varied again; And some factor is influential again each other, thereby can't directly confirm their size that influences rule and influence degree with the method that theory is resolved, and must solve through the method for experimental study.
The utility model content
In view of These characteristics, and on the basis of summing up forefathers' research, this Design of device is followed following principle of design.
1. the each point precompression evenly distributes on the maintenance joint portion, and can reach the face pressure scope of actual joint portion in the physical construction, and is easy to control and adjustment.
2. keep up and down in the test specimen test process with one heart, and how much axle center and centre-point load power are at same straight line.
3. for the ease of each the basic influence factor that influences the joint portion stiffness characteristics is studied, should guarantee that test specimen is easy to change, be easy to the location.
4. reduce the number of the physical quantity of measuring as far as possible, adopt directly as far as possible and measure, reduce indirectly and measure.
5. guarantee the joint portion stiffness characteristics is separated from the characteristic of experimental provision system.
With going up according to this principle; The apparatus and method of the test faying face tangential stiffness characteristics that the utility model design one cover is complete; Its basic goal just is and will obtains the tangential stiffness characteristics parameter of faying face various combination conditions (being various basic influence factor) under through experiment, and studies the relation between they and each basic influence factor through finishing analysis.The final physical construction CAE model of giving provides the faying face stiffness characteristics parameter with versatility that is similar to the part material constant, and can provide actual resolved for use easily.
For realizing above-mentioned purpose, the utility model has been taked following technical scheme:
A kind of device of testing faying face tangential stiffness characteristics, it mainly is made up of experiment charger that has force transducer 14 1 and tangential experiment package; It is characterized in that; Last test specimen 7 and following test specimen 6 butt joints; Its interface leaves the slit, and pressing plate 3 is positioned over two surfaces perpendicular with the test specimen interface respectively with pressing plate 11, is connected fixing with 10 through two high-strength bolts 9; Constitute the tangential experiment package, and high- strength bolt 9 and 10 is about upper and lower test specimen interface slit symmetry; The both sides in interface slit are furnished with support 8,5 so that eddy current displacement sensor 4 to be installed; The tangential experiment package is installed through hydraulic pressure dop 2 and 12 on the experiment charger 1; Load when testing charger 1, hydraulic stem 13 retractions are measured the force transducer 14 of loading force signal and the displacement variable eddy current displacement sensor 4 of measurement faying face tangential and are connected into signal acquiring system.
Slit between last test specimen 7 and the following test specimen 6 is 2mm.
High- strength bolt 9,10 is implanted foil gauge vertically, and its output terminal connects an electric bridge, inserts signal acquiring system through dynamic strain indicator, finally obtains normal plane pressure value.
The eddy current displacement sensor 4 of measuring the axial displacement at faying face place is distributed in the both sides of experiment package, along the axis symmetry.
The utility model discloses a kind of device of testing faying face tangential stiffness characteristics, have advantages such as machining is simple, the convenience that is installed, device highly versatile, the easy control of parameter.Solved the difficult problem that tangential faying face stiffness characteristics is difficult to test, significant to the optimization of the digital mockup that promotes large-scale high-accuracy physical construction such as lathe.
Description of drawings
Fig. 1 is the Experimental equipment of the utility model test faying face tangential stiffness characteristics.
Fig. 2 is the front view of the tangential experiment package of the utility model test faying face tangential stiffness characteristics.
Fig. 3 is the vertical view of the tangential experiment package of the utility model test faying face tangential stiffness characteristics.
Fig. 4 is the upper bracket front view that two eddy current displacement sensors are installed.
Fig. 5 is the upper bracket vertical view that two eddy current displacement sensors are installed.
Fig. 6 is the lower carriage front view that two eddy current displacement sensors are installed.
Fig. 7 is the lower carriage vertical view that two eddy current displacement sensors are installed.
Fig. 8 is the last test specimen of tangential experiment package.
Fig. 9 is the following test specimen of tangential experiment package.
Figure 10 is the pressing plate of tangential experiment package.
Figure 11 is the schematic diagram of the utility model test faying face tangential stiffness characteristics.
Among the figure: 1, experiment charger, 2, the hydraulic pressure dop, 3, pressing plate, 4, eddy current displacement sensor, 5, support; 6, following test specimen, 7, go up test specimen, 8, support, 9, high-strength bolt, 10, high-strength bolt; 11, pressing plate, 12, the hydraulic pressure dop, 13, hydraulic stem, 14, force transducer.
Embodiment
Below in conjunction with principle of work and structure accompanying drawing to the utility model further explain.
Fig. 1 is the Experimental equipment of test faying face tangential stiffness characteristics, and it mainly is made up of experiment charger that has force transducer 14 1 and tangential experiment package; It is characterized in that; Last test specimen 7 and following test specimen 6 butt joints; Its interface leaves the slit, and pressing plate 3 is positioned over two surfaces perpendicular with the test specimen interface respectively with pressing plate 11, is connected fixing with 10 through two high-strength bolts 9; Constitute the tangential experiment package, and high- strength bolt 9 and 10 is about upper and lower test specimen interface slit symmetry; The both sides in interface slit are furnished with support 8,5 so that eddy current displacement sensor 4 to be installed; The tangential experiment package is installed through hydraulic pressure dop 2 and 12 on the experiment charger 1; When experiment charger 1 loads, measure the force transducer 14 of loading force signal and the displacement variable eddy current displacement sensor 4 of measurement faying face tangential and connect into signal acquiring system.
Fig. 2 is the front view of the tangential experiment package of test faying face tangential stiffness characteristics, by last test specimen 7, test specimen 6, pressing plate 11, pressing plate 3 and two high- strength bolts 9 and 10 are formed down.Changing its normal plane through the pretightning force of regulating bolt presses.High- strength bolt 9 and 10 is implanted foil gauge vertically, and its output terminal connects an electric bridge, through dynamic strain indicator and signal acquiring system, finally can obtain normal plane pressure value accurately.
Fig. 3 is the vertical view of tangential experiment package, by figure can be clear and definite see that pressing plate and test specimen are with wide.
Fig. 4～Fig. 7 is for installing the support figure of eddy current displacement sensor, and this structure promptly can not interfere with the faying face characteristic of being surveyed, and can accurately locate again.
Fig. 8～Figure 10 is respectively upper and lower test specimen and pressing plate, and when the butt joint of two test specimen circular hole ends, interface stays the gap of 2mm, homonymy threaded hole pitch of holes should with the pressing plate equal in length.
Figure 11 tests the schematic diagram of faying face tangential stiffness characteristics, when the experiment charger loads a tangential pulling force that at the uniform velocity changes slowly to the tangential experiment package that has eddy current displacement sensor, can obtain corresponding tangential displacement.Handle the curve map that can obtain tangential pulling force-tangential displacement by force transducer 14 and eddy current displacement sensor 4 through signal acquiring systems, then to its differentiate get final product the curve map of tangential rigidity-tangential pulling force or tangential rigidity-tangential displacement.
The factor that influences faying face tangential rigidity a lot (medium between the area of faying face, roughness, the faying face, normal plane are pressed size etc.); Can keep under the constant situation of other condition; Change a certain factor, inquire into and study the relation between itself and the faying face tangential rigidity.
Claims (4)
1. device of testing faying face tangential stiffness characteristics, it mainly is made up of experiment charger (1) that has force transducer (14) and tangential experiment package; It is characterized in that; Last test specimen (7) and following test specimen (6) butt joint; Its interface leaves the slit, and pressing plate (3) and pressing plate (11) are positioned over two surfaces perpendicular with the test specimen interface respectively, is connected fixing with (10) through two high-strength bolts (9); Constitute the tangential experiment package, and high-strength bolt (9) is symmetrical about upper and lower test specimen interface slit with (10); The both sides in interface slit are furnished with support (8), and (5) are to install eddy current displacement sensor (4); The tangential experiment package is installed through hydraulic pressure dop (2) and (12) on the experiment charger (1); When experiment charger (1) loads, measure the force transducer (14) of loading force signal and the displacement variable eddy current displacement sensor (4) of measurement faying face tangential and connect into signal acquiring system.
2. a kind of device of testing faying face tangential stiffness characteristics according to claim 1 is characterized in that: the slit of going up between test specimen (7) and the following test specimen (6) is 2mm.
3. a kind of device of testing faying face tangential stiffness characteristics according to claim 1; It is characterized in that: high-strength bolt (9,10) is implanted foil gauge vertically; Its output terminal connects an electric bridge, inserts signal acquiring system through dynamic strain indicator, finally obtains normal plane pressure value.
4. a kind of device of testing faying face tangential stiffness characteristics according to claim 1 is characterized in that, the eddy current displacement sensor (4) of measuring the axial displacement at faying face place is distributed in the both sides of experiment package, along the axis symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203262741U CN202229974U (en) | 2011-09-01 | 2011-09-01 | Device for testing the tangential rigidity of bonding surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203262741U CN202229974U (en) | 2011-09-01 | 2011-09-01 | Device for testing the tangential rigidity of bonding surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229974U true CN202229974U (en) | 2012-05-23 |
Family
ID=46080558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203262741U Withdrawn - After Issue CN202229974U (en) | 2011-09-01 | 2011-09-01 | Device for testing the tangential rigidity of bonding surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229974U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393330A (en) * | 2011-09-01 | 2012-03-28 | 北京工业大学 | Device for testing tangential stiffness property of joint surface |
| CN104122085A (en) * | 2014-08-15 | 2014-10-29 | 上海理工大学 | Loading experiment device for ball rolling combined surface supporting dynamic loading |
| CN112161765A (en) * | 2020-09-01 | 2021-01-01 | 大连理工大学 | Contact interface tangential rigidity testing device under cyclic load based on piezoelectric actuator |
-
2011
- 2011-09-01 CN CN2011203262741U patent/CN202229974U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393330A (en) * | 2011-09-01 | 2012-03-28 | 北京工业大学 | Device for testing tangential stiffness property of joint surface |
| CN102393330B (en) * | 2011-09-01 | 2013-10-16 | 北京工业大学 | Device for testing tangential stiffness property of joint surface |
| CN104122085A (en) * | 2014-08-15 | 2014-10-29 | 上海理工大学 | Loading experiment device for ball rolling combined surface supporting dynamic loading |
| CN104122085B (en) * | 2014-08-15 | 2017-01-11 | 上海理工大学 | Loading experiment device for ball rolling combined surface supporting dynamic loading |
| CN112161765A (en) * | 2020-09-01 | 2021-01-01 | 大连理工大学 | Contact interface tangential rigidity testing device under cyclic load based on piezoelectric actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102393330B (en) | Device for testing tangential stiffness property of joint surface | |
| CN201314882Y (en) | Pressure-bearing testing device for eccentric compression reinforced concrete columns | |
| CN104849151B (en) | A kind of portable plate being suitable for free detrusion folds ring boxshear apparatus | |
| CN101561339B (en) | System for dynamically detecting stiffness parameters of closed-loop diagonal-bracing type vehicle bogies | |
| CN101865783B (en) | Bogie performance parameter combined test stand of rail vehicle | |
| CN103217278B (en) | A kind of method of testing high-strength bolt faying face normal direction static characteristics | |
| CN205426517U (en) | Lathe main shaft comprehensive properties detection / monitoring testing system | |
| CN103776685A (en) | Static force load testing device for concrete beam | |
| CN101793574B (en) | Piezoelectric type six-dimensional force sensor with adjustable load sharing ratio and test method thereof | |
| CN103234741A (en) | Device and method for testing tangential static characteristics of single-bolt combined face | |
| CN103913385A (en) | Comprehensive experiment table for measuring normal and tangential contact rigidity of mechanical junction surface | |
| CN202229974U (en) | Device for testing the tangential rigidity of bonding surface | |
| CN101972948A (en) | Test device for thermal error of machine tool spindle under simulated work load condition | |
| CN103217287A (en) | Device and method for testing static and dynamic characteristics of rolling support straight feed system | |
| CN202814614U (en) | Clamping force detection tool for railway vehicle braking clamp | |
| CN203785964U (en) | Digital portable press | |
| CN201249198Y (en) | Work roll axial force measuring device in flat rolling mill | |
| CN203798563U (en) | Assembly structure of test system for journal bearing | |
| CN203811459U (en) | Static load test device for concrete beam | |
| CN201436575U (en) | Multi-dimensional force sensor based suspension characteristic testbed | |
| CN102589865A (en) | Normal stiffness and hysteresis characteristic test experimental device for double-bolt joint surface | |
| CN203053421U (en) | Bearing bush wall thickness automation measurement apparatus | |
| CN103592069B (en) | Rail vehicle braking clamp clamping force detects frock and detection method | |
| CN102507248B (en) | Method for testing whether bridge bearing has void | |
| CN108760108A (en) | Crane wheel pressure detection method based on stress survey technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20131016 |
|
| RGAV | Abandon patent right to avoid regrant |