CN103954502A - Fatigue test loading mechanism with tensile pressing cushion - Google Patents
Fatigue test loading mechanism with tensile pressing cushion Download PDFInfo
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- CN103954502A CN103954502A CN201410172262.6A CN201410172262A CN103954502A CN 103954502 A CN103954502 A CN 103954502A CN 201410172262 A CN201410172262 A CN 201410172262A CN 103954502 A CN103954502 A CN 103954502A
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Abstract
The invention belongs to the field of fatigue test loading, and relates to a fatigue test loading mechanism with a tensile pressing cushion. The tensile pressing cushion of the loading mechanism consists of an adhesive tape, a clamp, an aluminum rod and a rubber block, wherein the adhesive tape is formed by sewing flax canvas and comprises four parts including covering cloth, filling cloth, bottom cloth and reinforced cloth. According to the mechanism, the breakthrough that the bidirectional load is finished through mounting on one single side of a test piece is realized, the adhesion quantity of the adhesive tape, the machining and mounting quantity of levers, and the mounting quantity of test loading equipment can be reduced to be half in the previous test, and therefore, the test tool cost, the tool mounting amount and the maintenance cost are greatly reduced, the working efficiency is improved, and the interference problem caused by test restriction points is avoided; moreover, the loading mechanism with the tensile pressing cushion has a compact spatial structure without any gap, and rapid conversion is realized during reversing loading, so that the test loading frequency is increased and the test efficiency is improved.
Description
Technical field
The invention belongs to torture test load domains, relate to a kind of Fatigue Testing Loads tension and compression pad load maintainer.
Background technology
Testpieces is carried out to torture test, and load great majority are bidirectional load (to pulling force and the pressure in the same direction of testpieces).In the past, torture test bidirectional load will carry out the loading on direction of pull respectively on two loading surfaces of testpieces, concrete grammar is difference glue strap on two loading surfaces of test specimen, adopt lever system to load testpieces, the quantity that rubberized tape is pasted in this case, load lever quantity and loading equipemtn and must prepare two covers simultaneously, making to test preparatory stage frock installation doubles, this mounting means also needs to leave the reverse impact that loading equipemtn produces in loading procedure of avoiding commutating of enough gaps, this gap directly affects the frequency that test loads, reduced test efficiency, if also there is obligatory point in torture test, between constraint frock and loading lever, also also can produce the problem of interference.This torture test load maintainer loading equipemtn is many, and the frock installation of test preparatory stage is large, and maintenance cost is high, and the stickup quantity of rubberized tape is many, inefficiency.
Summary of the invention
Technical matters to be solved by this invention is: a kind of Fatigue Testing Loads load maintainer is provided, thoroughly relieving fatigue test is many because biaxial loadings produces loading equipemtn, and the installation of test preparatory stage is large, and maintenance cost is high, the stickup quantity of rubberized tape is many, the problems such as inefficiency.
Technical solution of the present invention is, the tension and compression pad of load maintainer is by rubberized tape, fixture, aluminium bar and block rubber form, rubberized tape is made and is formed by linen canvas, rubberized tape is divided into cover cloth, shield, base fabric and reinforcement cloth four parts, cover cloth base and base fabric are sewed up, the pulling force that the stitch length on cover cloth base can be born is greater than 4 times of institute's bearing load pulling force, cover cloth is wrapped on the aluminium bar that diameter is 20mm, the distance of aluminium bar centre distance base fabric is 50mm, after cover cloth parcel aluminium bar, sew up, stitch length 20mm, the cover width of cloth is identical with the length of aluminium bar, strengthen the outside that cloth is sewn to cover cloth, the base of shield is sewn on the base fabric of cover cloth one side, the stitch length on the base of shield is according to 4 times of settings of institute's bearing load pulling force, the base of shield is sewed up with cover cloth after shape equilateral triangle on base fabric with cover cloth, on base fabric, be symmetrical arranged two rubberized tapes, distance between aluminium bar on two rubberized tapes is 60mm, block rubber is placed on two base fabrics between rubberized tape, the shape of block rubber and fixture and rubberized tape and the formed shape of base fabric are identical, fixture is comprised of base plate and riser, base plate is placed on block rubber, on riser, have and rubberized tape on diameter and two holes adapting of the distance between two aluminium bars, riser is installed in the middle of rubberized tape, aluminium bar connects into integral body through rubberized tape and hole corresponding to fixture by load maintainer.The length of aluminium bar and diameter are definite according to the size of tested load, and load is large, and aluminium bar length is long, diameter is large.Block rubber is by fixture and rubberized tape and the formed space of base fabric is filled up and gapless.
The advantage that the present invention has and beneficial effect,
The present invention has realized the breakthrough at the one-sided installation bidirectional load of testpieces, rubberized tape is pasted to quantity, lever processing and installation quantity, tested half that loading equipemtn installation quantity reduces to test in the past, greatly reduce test tool cost, frock installation and maintenance cost, improved work efficiency, avoided the interference problem producing because of test obligatory point, and tension and compression pad load maintainer space structure is compact, there is not gap, in commutation, can change fast in loading procedure, thus the raising test efficiency that improved test loading frequency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is rubberized tape structural representation of the present invention;
Fig. 3 is clamp structure schematic diagram of the present invention;
Fig. 4 is aluminium rod structure schematic diagram of the present invention;
Fig. 5 is block rubber structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated.
The tension and compression pad of load maintainer is as shown in Figure 1 by rubberized tape 1, fixture 2, aluminium bar 3 and block rubber 4 form, rubberized tape 1 is made and is formed by linen canvas, rubberized tape 1 is divided into cover cloth 5 as shown in Figure 2, shield 6, base fabric 7 and reinforcement cloth 8 four parts, cover cloth 5 bases and base fabric 7 are sewed up, the pulling force that the stitch length on cover cloth 5 bases can be born is greater than 4 times of institute's bearing load pulling force, cover cloth 5 is wrapped on the aluminium bar 3 that diameter is 20mm, the distance of aluminium bar 3 centre distance base fabrics 7 is 50mm, the rear stitching of cover cloth 5 parcel aluminium bar 3, stitch length 20mm, the width of cover cloth 5 is identical with the length of aluminium bar 3, strengthen the outside that cloth 8 is sewn to cover cloth 5, its effect is the pulling force of strengthening rubberized tape carrying, improve rubberized tape safety coefficient, the base of shield 6 is sewn on the base fabric 7 of cover cloth 5 one sides, the stitch length on the base of shield 6 is according to 4 times of settings of institute's bearing load pulling force, the base of shield 6 is sewed up with cover cloth 5 after forming equilateral triangle with cover cloth 5 on base fabric 7, forming equilateral triangle space is in order to increase the contact area between rubberized tape and bottom 7, thereby the conduction of exerting all one's strength is more even, on base fabric 7, be symmetrical arranged two rubberized tapes, distance between aluminium bar 3 on two rubberized tapes is 60mm, block rubber 4 is placed on two base fabrics 7 between rubberized tape, the shape of block rubber 4 is identical with rubberized tape and the formed shape of base fabric 7 with fixture 2, fixture 2 is comprised of base plate and riser, base plate is placed on block rubber 4, on riser, have and rubberized tape on diameter and two holes adapting of the distance between two aluminium bars, riser is installed in the middle of rubberized tape, aluminium bar 3 connects into integral body through the hole of rubberized tape 1 and fixture 2 correspondences by load maintainer.The length of aluminium bar and diameter are definite according to the size of tested load, and load is large, and aluminium bar length is long, diameter is large.Block rubber is by fixture and rubberized tape and the formed space of base fabric is filled up and gapless.
Tension and compression pad adopts and draws, presses to the mentality of designing that load is separately transmitted, and pulls to load and is delivered on testpieces by rubberized tape 1, aluminium bar 3 and the fixture 2 linking into an integrated entity, and presses to load and by block rubber 4 and fixture 2, transmits.
Through being carried out to tension test, tension and compression pad obtains following data:
| Aluminium bar length | Maneuvering load | Failing load | Safety coefficient |
| 100mm | 1500N | 6830N | 4.55 |
Claims (3)
1. a Fatigue Testing Loads tension and compression pad load maintainer, it is characterized in that, the tension and compression pad of load maintainer is by rubberized tape, fixture, aluminium bar and block rubber form, rubberized tape is made and is formed by linen canvas, rubberized tape is divided into cover cloth, shield, base fabric and reinforcement cloth four parts, cover cloth base and base fabric are sewed up, the pulling force that the stitch length on cover cloth base can be born is greater than 4 times of institute's bearing load pulling force, cover cloth is wrapped on the aluminium bar that diameter is 20mm, the distance of aluminium bar centre distance base fabric is 50mm, after cover cloth parcel aluminium bar, sew up, stitch length 20mm, the cover width of cloth is identical with the length of aluminium bar, strengthen the outside that cloth is sewn to cover cloth, the base of shield is sewn on the base fabric of cover cloth one side, the stitch length on the base of shield is according to 4 times of settings of institute's bearing load pulling force, the base of shield is sewed up with cover cloth after shape equilateral triangle on base fabric with cover cloth, on base fabric, be symmetrical arranged two rubberized tapes, distance between aluminium bar on two rubberized tapes is 60mm, block rubber is placed on two base fabrics between rubberized tape, the shape of block rubber and fixture and rubberized tape and the formed shape of base fabric are identical, fixture is comprised of base plate and riser, base plate is placed on block rubber, on riser, have and rubberized tape on diameter and two holes adapting of the distance between two aluminium bars, riser is installed in the middle of rubberized tape, aluminium bar connects into integral body through rubberized tape and hole corresponding to fixture by load maintainer.
2. a kind of Fatigue Testing Loads tension and compression pad load maintainer according to claim 1, is characterized in that, the length of described aluminium bar and diameter determine according to the size of tested load, and when load is large, the length of aluminium bar is long, diameter increases.
3. a kind of Fatigue Testing Loads tension and compression pad load maintainer according to claim 1, is characterized in that, described block rubber is by fixture and rubberized tape and the formed space of base fabric is filled up and gapless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172262.6A CN103954502A (en) | 2014-04-25 | 2014-04-25 | Fatigue test loading mechanism with tensile pressing cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172262.6A CN103954502A (en) | 2014-04-25 | 2014-04-25 | Fatigue test loading mechanism with tensile pressing cushion |
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| Publication Number | Publication Date |
|---|---|
| CN103954502A true CN103954502A (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410172262.6A Pending CN103954502A (en) | 2014-04-25 | 2014-04-25 | Fatigue test loading mechanism with tensile pressing cushion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849031A (en) * | 2015-04-27 | 2015-08-19 | 江西洪都航空工业集团有限责任公司 | Bidirectional loading module |
| CN109238739A (en) * | 2018-08-24 | 2019-01-18 | 中国飞机强度研究所 | A kind of tension and compression pad method of attaching for aircraft structure strength test |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1779433A (en) * | 2004-11-23 | 2006-05-31 | 西南交通大学 | Curling preventor of axial compression fatigue experiment |
| US20070098835A1 (en) * | 2003-12-11 | 2007-05-03 | Airbus | Device for sheet material corrugation |
| CN201575950U (en) * | 2009-12-14 | 2010-09-08 | 中国飞机强度研究所 | Tension and compression pad-lever loading device |
| CN102128726A (en) * | 2010-12-14 | 2011-07-20 | 中国飞机强度研究所 | Method for bonding adhesive tape |
| CN202030005U (en) * | 2011-03-21 | 2011-11-09 | 哈尔滨飞机工业集团有限责任公司 | Pulling and pressing two-way loading block |
| CN202147846U (en) * | 2011-07-08 | 2012-02-22 | 中国飞机强度研究所 | Vacuum suction plate test loading system |
| CN103630442A (en) * | 2013-12-04 | 2014-03-12 | 中国飞机强度研究所 | Aircraft structural strength test loading level |
-
2014
- 2014-04-25 CN CN201410172262.6A patent/CN103954502A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070098835A1 (en) * | 2003-12-11 | 2007-05-03 | Airbus | Device for sheet material corrugation |
| CN1779433A (en) * | 2004-11-23 | 2006-05-31 | 西南交通大学 | Curling preventor of axial compression fatigue experiment |
| CN201575950U (en) * | 2009-12-14 | 2010-09-08 | 中国飞机强度研究所 | Tension and compression pad-lever loading device |
| CN102128726A (en) * | 2010-12-14 | 2011-07-20 | 中国飞机强度研究所 | Method for bonding adhesive tape |
| CN202030005U (en) * | 2011-03-21 | 2011-11-09 | 哈尔滨飞机工业集团有限责任公司 | Pulling and pressing two-way loading block |
| CN202147846U (en) * | 2011-07-08 | 2012-02-22 | 中国飞机强度研究所 | Vacuum suction plate test loading system |
| CN103630442A (en) * | 2013-12-04 | 2014-03-12 | 中国飞机强度研究所 | Aircraft structural strength test loading level |
Non-Patent Citations (3)
| Title |
|---|
| 刘冰 等: "某型飞机升降舵静强度试验研究", 《工程与试验》 * |
| 吕毅 等: "空天飞机全C/SiC复合材料机身襟翼的静力试验研究与实效分析", 《飞机设计》 * |
| 王逾涯 等: "飞机结构静强度与疲劳试验双向加载技术研究", 《试验室研究与探索》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849031A (en) * | 2015-04-27 | 2015-08-19 | 江西洪都航空工业集团有限责任公司 | Bidirectional loading module |
| CN109238739A (en) * | 2018-08-24 | 2019-01-18 | 中国飞机强度研究所 | A kind of tension and compression pad method of attaching for aircraft structure strength test |
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Application publication date: 20140730 |