CN203894110U - Simple-shear test fixture applicable to detection on self characteristics of coaxial cable - Google Patents
Simple-shear test fixture applicable to detection on self characteristics of coaxial cable Download PDFInfo
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- CN203894110U CN203894110U CN201420328323.9U CN201420328323U CN203894110U CN 203894110 U CN203894110 U CN 203894110U CN 201420328323 U CN201420328323 U CN 201420328323U CN 203894110 U CN203894110 U CN 203894110U
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Abstract
The utility model discloses a simple-shear test fixture applicable to detection on self characteristics of a coaxial cable. The simple-shear test fixture comprises two shear fixtures which are arranged in a central symmetry manner and are connected, wherein a cable hole is formed in the middle of each shear fixture, a rubber washer is arranged on the inner wall of the cable hole, a shear piece is arranged on the shear fixture and on the cable hole, the shear pieces of the two shear fixtures which are arranged in a central symmetry manner are mutually attached, a connecting handle connected with an adjustable joint is arranged on each shear fixture, and a connecting hole which can be connected with a fixed end of a universal testing machine is formed in the adjustable joint. The simple-shear test fixture solves the problems that the common shear fixture is complicated to install, the cable is easy to damage and slide, the common shear fixture is only applicable to one cable and the like, and is simple to operate, strong in simulation performance, and capable of enabling testing results to be close to practices, and the development of the fixture can promote the development of the coaxial cable on aspects of human life, engineering applications and the like.
Description
Technical field
The utility model relates to a kind of simple shear test fixture that concentric cable self-characteristic detects that is applicable to, and belongs to cable self-characteristic and detects clamp technology field.
Background technology
At present, concentric cable has the advantages such as antijamming capability is strong, advantages of good shielding performance, transmission data stabilization, has been widely used in the government utilities such as equipment supporter line, closed-circuit television, community antenna system.Fast development along with human society engineering construction, concentric cable is by time domain reflection technology (Time Domain Reflectometry, abbreviation TDR) be also widely used in the monitoring of safety and environmental change, early than the damage that is applied to telephone wire the forties in 20th century, detect, from then on the damage that is widely applied cable itself detects, the monitoring of rock, mine surface and slope displacement, the aspects such as deformation monitoring of the member (as pipeline) of the monitoring of water constituent and electric conductivity thereof and the similar concentric cable of part.The application of concentric cable has become a part indispensable in civilization of human society process of construction, and the detection of cable self-characteristic also becomes one of test item that must carry out in its application process.
Shear test is a kind of important method of concentric cable Characteristics Detection, few for the shearing clamp of concentric cable shear property exploitation at present, though also mention in the literature, but be essentially double shear fixture, exist complexity, the slip of cable easy damaged are installed, be only applicable to a kind of cable, so existing cable self-characteristic detection fixture is still perfect not.
Utility model content
The purpose of this utility model is: provide a kind of simple in structure, practical, simple to operate, simulation is strong, stringency of test is high, a kind of simple shear test fixture that is applicable to the detection of concentric cable self-characteristic that application for concentric cable at aspects such as daily life and engineering constructions is significant, to overcome the deficiencies in the prior art.
The utility model is constructed as follows: a kind of simple shear test fixture that is applicable to the detection of concentric cable self-characteristic, simple shear test fixture is connected to form by the shearing clamp of two Central Symmetry settings, middle part at shearing clamp is provided with cable aperture, on the inwall of the hole of cable aperture, be provided with rubber sheet gasket, on shearing clamp and in a side of cable aperture, be provided with shearing sheet, shearing sheet on the shearing clamp of two Central Symmetry settings is close to mutually, on shearing clamp, be provided with the connection handle that can be connected with adjustable connector, on adjustable connector, be provided with the connecting hole that can be connected with universal testing machine stiff end.
Described shearing clamp is connected to form by set bolt by two fixture blocks, is provided with the adjusting bolt that can regulate cable aperture aperture between two fixture blocks.
Shear sheet and be bolted on shearing clamp by shearing sheet, shear sheet and connected to form by upper section and lower section, between upper section and lower section, form shearing perforation.
Connection handle is T font.
On adjustable connector, be provided with the link slot that can wrap up connection handle termination.
Cable aperture on the shearing clamp of two Central Symmetry settings is on same level straight line.
Simple shear fixture of the present utility model, having solved common shearing clamp installs complexity, the slip of cable easy damaged, is only applicable to the problems such as a kind of cable, and simple to operate, simulation is strong, test findings is drawn close to actual, the exploitation of this fixture is by the development that promotes concentric cable at aspects such as people's life and engineering application, and the utility model obtained experimental result precision is high, and the application for concentric cable at aspects such as daily life and engineering constructions is significant.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the three-dimensional structure schematic diagram of shearing clamp;
Fig. 3 is the structural representation of two fixture blocks;
Fig. 4 is for shearing the structural representation of sheet;
Description of reference numerals: 1-shearing clamp, 2-cable aperture, 3-rubber sheet gasket, 4-shears sheet, 5-adjustable connector, 6-connection handle, 7-connecting hole, 8-fixture block, 9-adjusting bolt, 10-shears sheet bolt, the upper section of 11-, cuts into slices under 12-, 13-shearing perforation, 14-link slot, 15-set bolt.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Enforcement of the present utility model: a kind of simple shear test fixture that is applicable to the detection of concentric cable self-characteristic, simple shear test fixture is connected to form by the shearing clamp 1 of two Central Symmetry settings, at the middle part of shearing clamp 1, be provided with cable aperture 2, on the inwall of the hole of cable aperture 2, be provided with rubber sheet gasket 3, on shearing clamp 1 and in a side of cable aperture 2, be provided with and shear sheet 4, shearing sheet 4 on the shearing clamp 1 of two Central Symmetry settings is close to mutually, on shearing clamp 1, be provided with the connection handle 6 that can be connected with adjustable connector 5, on adjustable connector 5, be provided with the connecting hole 7 that can be connected with universal testing machine stiff end.
Described shearing clamp 1 is connected to form by set bolt 15 by two fixture blocks 8, is provided with the adjusting bolt 9 that can regulate cable aperture 2 apertures between two fixture blocks 8.
Shear sheet 4 and be fixed on shearing clamp 1 by shearing sheet bolt 10, shear sheet 4 and connected to form by upper section 11 and lower section 12, between upper section 11 and lower section 12, form shearing perforation 13.
Connection handle 6 is T font.
On adjustable connector 5, be provided with the link slot 14 that can wrap up connection handle 6 terminations.
Cable aperture 2 on the shearing clamp 1 of two Central Symmetry settings is on same level straight line.
If Fig. 1 is to as shown in Fig. 4, simple shear test fixture is upper and lower two parts symmetric design, the upper and lower changing of the relative positions under loading environment and reach shear effect.In order to see the inner structure of shearing clamp 1 clearly, two fixture block 8 inside of shearing clamp 1 are separately put outwardly, as seen from Figure 3, two fixture blocks 8 are spliced to form cable aperture 2, on cable aperture 2 walls, be pasted with rubber sheet gasket 3, two fixture blocks 8 are fixed by set bolt 15, by adjusting bolt 9, regulate cable aperture 2 apertures, shear the concrete formation of sheet 4 as shown in Figure 4, shear sheet 4 and connect to form and form shearing perforation 13 by upper section 11 and lower section 12, can there is according to different concentric cable diameter configurations the shearing sheet 4 of different pore size shearing perforation 13.
During work, by shearing clamp 1 and shear sheet 4 and be divided into two splicing members and assemble, to facilitate the installation of concentric cable, for being suitable for the concentric cable of different-diameter, configure respectively the shearing sheet 4 that shearing perforation 13 apertures match with it in addition.Before installing cables, first 1 liang of splicing member of shearing clamp separately, select the shearing sheet 4 in coupling aperture by shearing sheet bolt 10, to be individually fixed in the shearing position of 1 liang of splicing member of shearing clamp simultaneously.Due to concentric cable easy damaged, and easily slide in process of the test, and damage and slip are on test findings impact greatly, for preventing cable fault and slip, at the interior stickup rubber sheet gasket 3 of cable aperture 2, concentric cable to be sheared is placed in half of cable aperture 2, merge splicing member, first by adjusting bolt 9, position, then tighten set bolt 15.Connection handle 6 is placed in the link slot 14 of adjustable connector 5 and connects.Repeat above step, assemble another shearing clamp 1, two shearing clamps are centrosymmetric and put and agree with completely, shear position and be close to, in case stretch in shear history.One end connecting hole 7 is connected in to universal testing machine stiff end, regulate universal testing machine movable end, other end connecting hole 7 is connected thereon, and regulate and two shearing clamps are just strained and cable is not sheared, finally start universal testing machine, make the upper and lower changing of the relative positions of two shearing clamps and shear.
The utility model is simple, and applicability is wide, is specially adapted to the detection of concentric cable shear property, and obtained experimental result precision is high, and simulation is strong, and the application for concentric cable at aspects such as daily life and engineering constructions is significant.
Claims (6)
1. one kind is applicable to the simple shear test fixture that concentric cable self-characteristic detects, it is characterized in that: the shearing clamp (1) that simple shear test fixture is arranged by two Central Symmetries connects to form, at the middle part of shearing clamp (1), be provided with cable aperture (2), on the hole inwall of cable aperture (2), be provided with rubber sheet gasket (3), upper and be provided with and shear sheet (4) in a side of cable aperture (2) at shearing clamp (1), shearing sheet (4) on the shearing clamp (1) of two Central Symmetry settings is close to mutually, on shearing clamp (1), be provided with the connection handle (6) that can be connected with adjustable connector (5), on adjustable connector (5), be provided with the connecting hole (7) that can be connected with universal testing machine stiff end.
2. be according to claim 1ly applicable to the simple shear test fixture that concentric cable self-characteristic detects, it is characterized in that: described shearing clamp (1) is connected to form by set bolt (15) by two fixture blocks (8), between two fixture blocks (8), be provided with the adjusting bolt (9) that can regulate cable aperture (2) aperture.
3. be according to claim 1ly applicable to the simple shear test fixture that concentric cable self-characteristic detects, it is characterized in that: shear sheet (4) and be fixed on shearing clamp (1) by shearing sheet bolt (10), shear sheet (4) and connected to form by upper section (11) and lower section (12), between upper section (11) and lower section (12), form shearing perforation (13).
4. the simple shear test fixture that is applicable to the detection of concentric cable self-characteristic according to claim 1, is characterized in that: connection handle (6) is T font.
5. the simple shear test fixture that is applicable to the detection of concentric cable self-characteristic according to claim 1, is characterized in that: on adjustable connector (5), be provided with the link slot (14) that can wrap up connection handle (6) termination.
6. the simple shear test fixture that is applicable to the detection of concentric cable self-characteristic according to claim 1, is characterized in that: the cable aperture (2) on the shearing clamp (1) of two Central Symmetry settings is on same level straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328323.9U CN203894110U (en) | 2014-06-19 | 2014-06-19 | Simple-shear test fixture applicable to detection on self characteristics of coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420328323.9U CN203894110U (en) | 2014-06-19 | 2014-06-19 | Simple-shear test fixture applicable to detection on self characteristics of coaxial cable |
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| Publication Number | Publication Date |
|---|---|
| CN203894110U true CN203894110U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420328323.9U Active CN203894110U (en) | 2014-06-19 | 2014-06-19 | Simple-shear test fixture applicable to detection on self characteristics of coaxial cable |
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| CN (1) | CN203894110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990810A (en) * | 2015-07-03 | 2015-10-21 | 河南机电高等专科学校 | Connector shear strength testing device |
| CN105910898A (en) * | 2016-06-30 | 2016-08-31 | 新兴铸管股份有限公司 | Clamp used for shearing test of welding material and application method of clamp |
| CN106596292A (en) * | 2016-12-14 | 2017-04-26 | 哈尔滨工业大学 | Interlayer direct shearing testing device for pavement material |
-
2014
- 2014-06-19 CN CN201420328323.9U patent/CN203894110U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990810A (en) * | 2015-07-03 | 2015-10-21 | 河南机电高等专科学校 | Connector shear strength testing device |
| CN105910898A (en) * | 2016-06-30 | 2016-08-31 | 新兴铸管股份有限公司 | Clamp used for shearing test of welding material and application method of clamp |
| CN105910898B (en) * | 2016-06-30 | 2019-04-09 | 新兴铸管股份有限公司 | A kind of application method of the fixture for welding material shearing test |
| CN106596292A (en) * | 2016-12-14 | 2017-04-26 | 哈尔滨工业大学 | Interlayer direct shearing testing device for pavement material |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |