CN113607572A - Channel body shear strength mechanical test tool and application thereof - Google Patents
Channel body shear strength mechanical test tool and application thereof Download PDFInfo
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- CN113607572A CN113607572A CN202011575216.2A CN202011575216A CN113607572A CN 113607572 A CN113607572 A CN 113607572A CN 202011575216 A CN202011575216 A CN 202011575216A CN 113607572 A CN113607572 A CN 113607572A
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 238000010008 shearing Methods 0.000 claims abstract description 26
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of mechanical detection of channel bodies, and particularly discloses a mechanical test tool for the shear strength of a channel body. The test tool comprises a T-shaped main body part, a sliding guide bar fixed on the T-shaped main body part, and at least two anti-shearing clamping parts clamped on the T-shaped main body part and capable of freely sliding on the T-shaped main body part; the T-shaped main body part comprises a bottom plate and a vertical plate which are perpendicular to each other, the sliding guide strip is fixed on the bottom plate and is parallel to the vertical plate, the anti-shearing clamping part is provided with a slot for inserting the channel body to be detected, and the opening of the slot faces the vertical plate. The sliding guide strip is arranged on the bottom plate, and then at least two anti-shearing clamping pieces which can freely slide are clamped, so that the channel body to be detected can be inserted and fixed, and the channel body to be detected can be adapted to the channel bodies to be detected with different lengths through sliding. The test tool is matched with a static testing machine for use, and the T-shaped bolt is loaded downwards through the static testing machine, so that the mechanical property of the shear strength is obtained.
Description
Technical Field
The invention belongs to the technical field of mechanical detection of channel bodies, and particularly relates to a mechanical test tool for the shear strength of a channel body and application of the mechanical test tool in the mechanical test of the shear strength of the channel body.
Background
The channel is widely applied to industrial and civil buildings, in particular to the fields of railways, bridges and tunnels, nuclear power and the like. From the product angle definition, the channel body comprises steel groove and stock, and T type bolt passes through the nut to be fixed in the steel groove can. The channel is used as a standard part, has good mechanical property, and has higher adjustability because the T-shaped bolt can freely move in the channel of the steel groove, is time-saving and labor-saving in installation, lower in cost and strong in flexibility, is suitable for industrial and civil buildings of different types, and has the advantages of economy, convenience, safety and reliability particularly embodied in railway and subway engineering.
The usage of channel body is extensive, and mainly used bears the loading effect, receives environmental impact simultaneously, and multiple destruction form often appears, and T type bolt mainly bears the shearing force and transmits for the channel body in the use, can appear shearing the destruction during transshipping. Once the channel body is damaged, functional damage is often caused, and huge economic loss is generated, so that the detection of the shearing strength of the channel body is very necessary.
Although there is a testing tool for testing the shear strength of a channel body in the prior art, the testing tool generally uses two sets of fixing members to clamp the channel body for testing, and the length of the channel body adapted to the testing tool is determined by the inherent distance between the two sets of fixing members, and the testing tool has no adjustability and is limited in application.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a channel body shear strength mechanical test tool with a novel structure, which can be suitable for the shear strength tests of channel bodies with different lengths.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a mechanical test tool for shear strength of a channel body comprises a T-shaped main body part, a sliding guide bar fixed on the T-shaped main body part, and at least two anti-shear clamping parts clamped on the T-shaped main body part and the sliding guide bar and capable of freely sliding on the T-shaped main body part and the sliding guide bar; the T-shaped main body piece comprises a bottom plate and a vertical plate which are assembled in a mutually perpendicular mode, the sliding guide strip is fixed on the bottom plate and has the same length direction as the vertical plate, the anti-shearing clamping piece is provided with a slot used for inserting a channel body to be detected, and the opening of the slot faces the vertical plate.
Furthermore, the anti-shearing clamping piece is also provided with a first clamping groove used for being clamped on the vertical plate, a second clamping groove used for being clamped on the sliding guide strip, and a through hole which is positioned on the outer side wall of the anti-shearing clamping piece and used for fixing the channel body to be detected in the slot; the first clamping grooves and the second clamping grooves are arranged in a staggered mode in the height direction of the vertical plate.
Further, the openings of the first card slot and the second card slot face the bottom plate.
Further, the T-shaped main body piece also comprises a plurality of reinforcing ribs supported and arranged between the vertical plate and the bottom plate; wherein, the stiffening rib with the slip gib is located the both sides of riser.
Further, the number of the anti-shearing clamping pieces is two.
Further, the sliding guide strip is detachably fixed on the bottom plate.
Further, the bottom plate and the vertical plate are integrally formed.
The invention also aims to provide application of the channel body shear strength mechanical test tool, which is matched with a static tester for use; the application method comprises the following steps:
inserting the channel body to be detected into a slot in the channel body shear strength mechanical test tool, and fixing the channel body to be detected and the slot;
and carrying out downward shearing loading on the T-shaped bolt in the channel body to be detected by adopting the static testing machine, and obtaining the shearing strength mechanical property of the channel body to be detected.
The sliding guide strip is arranged on the bottom plate in the T-shaped main body, and then at least two anti-shearing clamping pieces which can freely slide are clamped and arranged by utilizing the combined action of the vertical plate and the sliding guide strip in the T-shaped main body, and the anti-shearing clamping pieces can be used for inserting and fixing the channel body to be detected and can be adapted to the channel bodies to be detected with different lengths through sliding. The channel body shear strength mechanical test tool can be matched with a static testing machine for use so as to test the shear strength mechanical property of the channel body to be detected, namely, the T-shaped bolt in the channel body to be detected is loaded downwards after the channel body to be detected is fixed, and the test method is simple.
Drawings
The above and other aspects, features and advantages of embodiments of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view of a channel body shear strength mechanical test fixture according to the present invention;
FIG. 2 is a perspective view of another angle of the channel body shear strength mechanical test fixture according to the present invention;
fig. 3 is a schematic structural diagram of the anti-shear clamping piece in the mechanical testing tool for the shear strength of the channel body according to the invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided to explain the principles of the invention and its practical application to thereby enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated. In the drawings, the shapes and sizes of elements may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or similar elements.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a list of items or devices is not necessarily limited to those elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such items or devices.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," and "clamped" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Based on the problem that the test device for testing the shearing strength of the channel body in the prior art can only test the channel body with a fixed length generally, so that the application range is limited, the inventor of the invention provides a test tool with a novel structure by improving the structure of the test tool, and the test tool can test the channel bodies with different lengths.
Referring to fig. 1 and 2, the mechanical test fixture for the shear strength of the channel body comprises a T-shaped main body 1, a sliding guide bar 2 fixed on the T-shaped main body 1, and at least two anti-shear clamping members 3 clamped on the T-shaped main body 1 and the sliding guide bar 2 and capable of freely sliding on the T-shaped main body 1 and the sliding guide bar 2.
Specifically, the T-shaped body 1 includes a bottom plate 11 and a vertical plate 12 assembled perpendicular to each other, and the slide guide 2 is fixed to the bottom plate 1 and has the same length direction as the vertical plate 12; that is, the riser 12 and the sliding guide 2 are fixedly arranged parallel to the base plate 11 and are at a distance from one another and not completely adjacent to one another.
Further, the sliding guide bar 2 is detachably fixed to the base plate 11, for example, the sliding guide bar 2 may be screwed to the base plate 11 by bolts.
As further shown in fig. 3, the anti-shear clamp 3 has a slot 31 for inserting a channel body (not shown) to be tested, with the opening of the slot 31 facing the riser 12. Thus, the slot 31 is closed by the vertical plate 12 to form a square hole, and the channel body to be detected can be inserted into at least two square holes to wait for detection.
Further, according to the orientation shown in fig. 1, the anti-shearing clamp 3 has a first engaging groove 32 at the top for engaging with the vertical plate 12, a second engaging groove 33 at the bottom for engaging with the sliding guide 2, the openings of the first engaging groove 32 and the second engaging groove 33 face the bottom plate 11, and the two engaging grooves 32, 33 are arranged in a staggered manner in the height direction of the vertical plate 12. That is to say, each anti-shearing clamping piece 3 is respectively "buckled" on riser 12 and sliding guide 2 through first draw-in groove 32 and second draw-in groove 33 that distribute at the both ends in the direction of height, is about to anti-shearing clamping piece 3 slidable ground has been settled on riser 12 and sliding guide 2 to because of there is certain distance between riser 12 and the sliding guide 2, first draw-in groove 32 and second draw-in groove 33 are also not relative from top to bottom.
In each shear-resistant clamp 3, a through hole 34 is further formed on a side wall of the corresponding position of the slot 31, i.e., on a side wall of the shear-resistant clamp 3. The through hole 34 is used for fixing the channel body of the channel body to be detected inserted into the slot 31.
Preferably, the T-shaped body 1 further comprises a plurality of reinforcing ribs 13 supported and disposed between the risers 12 and the bottom plate 11; these reinforcing ribs 13 are arranged on the rear side of the riser 12, i.e. on both sides of the riser 12 with the sliding guides 2. The arrangement of the reinforcing rib 13 can play a role in stabilizing a T-shaped structure formed by the vertical plate 12 and the bottom plate 11 so as to prevent the vertical plate 12 from deforming or even falling off in the process of carrying out the shear strength test of the channel body.
More preferably, the bottom plate 11 and the vertical plate 12 are integrally formed, which may also serve the purpose of further stabilizing the T-shaped structure formed by the two.
Generally speaking, the two ends of the channel body to be detected are respectively hung on the two slots 31 in the two anti-shearing clamping pieces 3, that is, the channel body between the two anti-shearing clamping pieces can be detected, and therefore, the anti-shearing clamping pieces 3 are preferably set to be two. Therefore, the distance between the two anti-shearing clamping pieces 3 is adjusted in a sliding mode, the shearing strength of the channel bodies with different lengths is detected, and the test tool is guaranteed to have a wider application range.
When the mechanical test tool for the shear strength of the channel body is used, the mechanical test tool can be matched with a static test machine for use, namely, the channel body to be detected is inserted into the slot 31 and fixed, and then the static test machine is adopted to carry out downward shear loading on the T-shaped bolt in the channel body to be detected, so that the mechanical property of the shear strength is obtained.
While the invention has been shown and described with reference to certain embodiments, those skilled in the art will understand that: various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. A mechanical test tool for shear strength of a channel body is characterized by comprising a T-shaped main body part, a sliding guide bar fixed on the T-shaped main body part, and at least two anti-shear clamping parts clamped on the T-shaped main body part and the sliding guide bar and capable of freely sliding on the T-shaped main body part and the sliding guide bar; the T-shaped main body piece comprises a bottom plate and a vertical plate which are assembled in a mutually perpendicular mode, the sliding guide strip is fixed on the bottom plate and has the same length direction as the vertical plate, the anti-shearing clamping piece is provided with a slot used for inserting a channel body to be detected, and the opening of the slot faces the vertical plate.
2. The mechanical test tool for the shear strength of the channel body according to claim 1, wherein the anti-shear clamping piece further comprises a first clamping groove used for being clamped on the vertical plate, a second clamping groove used for being clamped on the sliding guide strip, and a through hole which is located on the outer side wall of the anti-shear clamping piece and used for fixing the channel body to be detected in the slot; the first clamping grooves and the second clamping grooves are arranged in a staggered mode in the height direction of the vertical plate.
3. The channel body shear strength mechanical test tool of claim 2, wherein the openings of the first clamping groove and the second clamping groove face the bottom plate.
4. The mechanical test tool for the shear strength of the channel body according to any one of claims 1 to 3, wherein the T-shaped main body piece further comprises a plurality of reinforcing ribs supported and arranged between the vertical plate and the bottom plate; wherein, the stiffening rib with the slip gib is located the both sides of riser.
5. The mechanical test tool for the shear strength of the channel body according to claim 4, wherein the number of the anti-shear clamping pieces is two.
6. The mechanical test tool for shear strength of channel bodies according to claim 4, wherein the sliding guide bar is detachably fixed on the bottom plate.
7. The mechanical test tool for shear strength of channel bodies according to claim 4, wherein the bottom plate and the vertical plate are integrally formed.
8. The application of the mechanical test tool for the shear strength of the channel body according to any one of claims 1 to 7, wherein the mechanical test tool for the shear strength of the channel body is matched with a static tester for use; the application method comprises the following steps:
inserting the channel body to be detected into a slot in the channel body shear strength mechanical test tool, and fixing the channel body to be detected and the slot;
and carrying out downward shearing loading on the T-shaped bolt in the channel body to be detected by adopting the static testing machine, and obtaining the shearing strength mechanical property of the channel body to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575216.2A CN113607572A (en) | 2020-12-28 | 2020-12-28 | Channel body shear strength mechanical test tool and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011575216.2A CN113607572A (en) | 2020-12-28 | 2020-12-28 | Channel body shear strength mechanical test tool and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113607572A true CN113607572A (en) | 2021-11-05 |
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| CN202011575216.2A Pending CN113607572A (en) | 2020-12-28 | 2020-12-28 | Channel body shear strength mechanical test tool and application thereof |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121328A (en) * | 2001-10-10 | 2003-04-23 | Building Research Institute | Shearing testing fixture |
| CN104880365A (en) * | 2015-07-01 | 2015-09-02 | 中冶建工集团有限公司 | Reinforcing-steel-bar shearing resistance testing clamp |
| CN205786089U (en) * | 2016-05-11 | 2016-12-07 | 中国石油天然气集团公司 | A kind of corrosion resistant alloy the Shear Strength of Composite Materials test fixture |
| CN206095827U (en) * | 2016-10-25 | 2017-04-12 | 苏州达美特汽车测试技术有限公司 | High speed shearing test device |
| CN107631930A (en) * | 2017-09-28 | 2018-01-26 | 中国航发动力股份有限公司 | A kind of composite interlayer shearing test clamp |
| CN208171764U (en) * | 2018-05-22 | 2018-11-30 | 中铁检验认证中心 | A kind of pre-buried channel flow shearing test device |
| CN208171770U (en) * | 2018-04-13 | 2018-11-30 | 天能电池集团（安徽）有限公司 | A kind of plastic housing Detecting data |
| CN109443952A (en) * | 2018-12-07 | 2019-03-08 | 南京航空航天大学 | A kind of T connector shearing test device |
| CN110068513A (en) * | 2019-05-23 | 2019-07-30 | 江苏省建筑工程质量检测中心有限公司 | The multi-functional mechanical test tooling of pre-buried channel flow |
| CN110631927A (en) * | 2019-10-17 | 2019-12-31 | 上海工程技术大学 | Shear test simulation teaching device of concrete test block |
| CN210154952U (en) * | 2019-05-29 | 2020-03-17 | 中建八局轨道交通建设有限公司 | Shear test device for pre-buried channel on shield segment |
| CN210465163U (en) * | 2019-05-23 | 2020-05-05 | 江苏省建筑工程质量检测中心有限公司 | Multifunctional mechanical test tool for embedded channel |
| CN210626184U (en) * | 2019-09-27 | 2020-05-26 | 中宥(平原)科技有限公司 | Fixing jig for channel shearing force test |
-
2020
- 2020-12-28 CN CN202011575216.2A patent/CN113607572A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121328A (en) * | 2001-10-10 | 2003-04-23 | Building Research Institute | Shearing testing fixture |
| CN104880365A (en) * | 2015-07-01 | 2015-09-02 | 中冶建工集团有限公司 | Reinforcing-steel-bar shearing resistance testing clamp |
| CN205786089U (en) * | 2016-05-11 | 2016-12-07 | 中国石油天然气集团公司 | A kind of corrosion resistant alloy the Shear Strength of Composite Materials test fixture |
| CN206095827U (en) * | 2016-10-25 | 2017-04-12 | 苏州达美特汽车测试技术有限公司 | High speed shearing test device |
| CN107631930A (en) * | 2017-09-28 | 2018-01-26 | 中国航发动力股份有限公司 | A kind of composite interlayer shearing test clamp |
| CN208171770U (en) * | 2018-04-13 | 2018-11-30 | 天能电池集团（安徽）有限公司 | A kind of plastic housing Detecting data |
| CN208171764U (en) * | 2018-05-22 | 2018-11-30 | 中铁检验认证中心 | A kind of pre-buried channel flow shearing test device |
| CN109443952A (en) * | 2018-12-07 | 2019-03-08 | 南京航空航天大学 | A kind of T connector shearing test device |
| CN110068513A (en) * | 2019-05-23 | 2019-07-30 | 江苏省建筑工程质量检测中心有限公司 | The multi-functional mechanical test tooling of pre-buried channel flow |
| CN210465163U (en) * | 2019-05-23 | 2020-05-05 | 江苏省建筑工程质量检测中心有限公司 | Multifunctional mechanical test tool for embedded channel |
| CN210154952U (en) * | 2019-05-29 | 2020-03-17 | 中建八局轨道交通建设有限公司 | Shear test device for pre-buried channel on shield segment |
| CN210626184U (en) * | 2019-09-27 | 2020-05-26 | 中宥(平原)科技有限公司 | Fixing jig for channel shearing force test |
| CN110631927A (en) * | 2019-10-17 | 2019-12-31 | 上海工程技术大学 | Shear test simulation teaching device of concrete test block |
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