CN117433890A - Detection device for detecting stress strain of lead - Google Patents
Detection device for detecting stress strain of lead Download PDFInfo
- Publication number
- CN117433890A CN117433890A CN202311162155.0A CN202311162155A CN117433890A CN 117433890 A CN117433890 A CN 117433890A CN 202311162155 A CN202311162155 A CN 202311162155A CN 117433890 A CN117433890 A CN 117433890A
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- wire
- extensometer
- detecting
- strain
- rod
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- G01N3/02—Details
-
- 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
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a detection device for detecting stress strain of a wire, which belongs to the field of test devices and solves the problems of high detection difficulty and poor accuracy of the existing detection test scheme. The invention is mainly used for making the test of the wire simpler and faster.
Description
[ field of technology ]
The invention discloses a detection device for detecting stress strain of a wire, and belongs to the technical field of detection devices.
[ background Art ]
The stress strain and elastic modulus test of the lead is a traditional test item, and the traditional test method has the characteristics of multiple devices, multiple links and non-continuity, is high in test difficulty and is difficult to control in test quality.
[ invention ]
The invention aims to solve the problems of high detection difficulty and poor accuracy of the existing detection test scheme, and provides a detection device for detecting the stress strain of a wire, so that the wire test is simpler and faster.
The technical problems are solved, and the invention adopts the following technical scheme:
the utility model provides a detection device for detecting wire stress strain, includes electron extensometer, the anchor clamps of centre gripping wire tip, drives anchor clamps along wire axial displacement's pulling force machine and is used for placing the regulation seat of wire, adjusts the seat and is equipped with the first regulating part that is used for changing the regulation seat height and supplies the second regulating part of regulation seat horizontal migration, adjust the seat including detecting the platform and being in the brace table at detecting the platform both ends, electron extensometer is equipped with two connecting pieces that are used for connecting the wire, and electron extensometer is in between detecting platform and the brace table with the connecting piece after the wire is connected.
The beneficial effects of the invention are as follows:
the detection device comprises the electronic extensometer, the clamp, the tension machine and the adjusting seat, wherein the adjusting seat can control the height of the adjusting seat through the first adjusting piece, so that the whole wire is kept as horizontal as possible before being stretched, deviation of a detection result caused by bending of the wire is avoided, and the detection precision of the device can be effectively improved.
In addition, the adjusting seat comprises a detection table and a supporting table, and after the electronic extensometer is connected with the lead, the connecting piece is positioned between the detection table and the supporting table, so that the lead can be prevented from being lifted at the connecting position due to the contact of the connecting piece and the adjusting seat, the lead can be kept horizontal as much as possible, and the detection precision of the invention is improved.
Secondly, when the detection device is used, the wire is placed on the adjusting seat, the clamps clamp the two ends of the wire, so that damage to the wire caused by the clamps can be effectively reduced, the height of the wire is adjusted by the adjusting seat before detection, the wire is kept as horizontal as possible before being stretched, then the electronic extensometer is connected with the wire, and the two clamps are controlled to be far away from each other through the pulling machine during detection, so that the wire is stretched, the electronic extensometer can directly detect the deformation data of the wire in the stretching process.
Preferably, the wire is provided with two fastening chucks, the distance between the two fastening chucks is smaller than the distance between the two supporting tables and is larger than the length of the detection table, and the connecting piece is connected with the fastening chucks so that the electronic extensometer is fixed on the wire. By adopting the technical scheme, the fastening chuck can sufficiently press all single wires in the wire, so that the relative displacement of the single wires in the wire can be effectively avoided, and the detection precision of the invention is improved; in addition, the fastening chuck can provide a reliable installation position for the electronic extensometer, so that the electronic extensometer is more firmly and reliably installed, and the possibility of position deviation of the electronic extensometer caused by stretching of a wire is reduced.
Preferably, a supporting rod is arranged between the electronic extensometer and the connecting piece, and the electronic extensometer is arranged right above one of the connecting pieces. By adopting the technical scheme, the supporting rod can fix the electronic extensometer and the connecting piece, so that the electronic extensometer is fixed more firmly and reliably.
Preferably, an anti-tilting rod is arranged on the connecting piece right below the electronic extensometer, and the anti-tilting rod clamps the electronic extensometer.
Preferably, the connecting piece comprises a fixed chuck and a movable chuck, the fixed chuck is fixedly connected with the supporting rod, and the movable chuck is detachably connected with the fixed chuck.
Preferably, the adjusting seat comprises a mounting groove for placing the lead and a base, the first adjusting piece is arranged on the upper side of the base, the top end of the first adjusting piece is connected with the mounting groove, and the first adjusting piece is used for controlling the lifting of the mounting groove.
Preferably, the first adjusting piece comprises a fixed rod fixed on the base and a movable rod in threaded connection with the fixed rod, the fixed rod is provided with a threaded hole for the movable rod to extend into, and the surface of the movable rod is provided with external threads.
Preferably, the detection device further comprises an outer shell, the electronic extensometer, the clamp, the pulling machine and the adjusting seat are all arranged in the outer shell, the adjusting seat comprises a base, the second adjusting piece is a roller arranged on the base, the shell is provided with sliding grooves distributed along the length direction of the adjusting seat, and the base is in sliding connection with the shell through the roller.
Other features and advantages of the present invention will be disclosed in the following detailed description of the invention and the accompanying drawings.
[ description of the drawings ]
The invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a detecting device for detecting stress strain of a wire according to the present invention;
FIG. 2 is a front view of a device for detecting wire stress strain according to the present invention;
fig. 3 is a schematic structural view of a detecting table and an electronic extensometer in a detecting device for detecting stress strain of a wire according to the present invention.
Reference numerals: 1 fixture, 2 pulling machine, 3 adjusting seat, 31 supporting bench, 32 detecting bench, 321 mounting groove, 322 base, 323 second adjusting piece, 324 first adjusting piece, 4 electronic extensometer, 41 connecting piece, 411 fixed chuck, 412 movable chuck, 42 supporting rod, 43 anti-tilting rod.
[ detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 3, the present embodiment shows a detecting device for detecting stress strain of a wire, comprising an electronic extensometer 4, a clamp 1 for clamping an end portion of the wire, a pulling machine 2 for driving the clamp 1 to move along an axial direction of the wire, and an adjusting seat 3 for placing the wire, wherein the adjusting seat 3 is provided with a first adjusting member 324 for changing the height of the adjusting seat 3 and a second adjusting member 323 for horizontally moving the adjusting seat 3, the adjusting seat 3 comprises a detecting table 32 and supporting tables 31 at two ends of the detecting table 32, the electronic extensometer 4 is provided with two connecting members 41 for connecting the wire, and the connecting members 41 are located between the detecting table 32 and the supporting tables 31 after the electronic extensometer 4 is connected with the wire.
In this embodiment, detection device includes electron extensometer 4, anchor clamps 1, pulling force machine 2 and adjusts seat 3, adjusts seat 3 and can control the height of adjusting seat 3 through first regulating part 324, and then makes the whole as far as possible that keeps the level before being stretched, avoids leading to the testing result to have the deviation because of the wire bending, can effectively improve the detection precision of this embodiment.
In addition, the adjusting seat 3 comprises a detecting table 32 and a supporting table 31, after the electronic extensometer 4 is connected with the wires, the connecting piece 41 is positioned between the detecting table 32 and the supporting table 31, so that the wires can be prevented from being lifted at the connecting position due to the contact of the connecting piece 41 and the adjusting seat 3, the wires can be kept as horizontal as possible, and the detecting precision of the embodiment is improved.
Secondly detection device is when using, on the adjusting seat 3 of placing the wire, clamp 1 carries out the centre gripping to the both ends of wire, can effectively reduce the damage that clamp 1 produced the wire, highly adjust the wire through adjusting seat 3 before detecting, make the wire keep the level as far as before being stretched, afterwards be connected electron extensometer 4 with the wire, keep away from each other through pulling force machine 2 control two clamp 1 during the detection, thereby realize the drawing to the wire, the wire can directly detect the data that the wire warp by electron extensometer 4 in the tensile in-process, this embodiment can be through simple swift operation, realize the high accuracy detection to the wire, the test degree of difficulty of wire has effectively been reduced.
In this embodiment detection device still includes outer casing, and electron extensometer 4, anchor clamps 1, pulling force machine 2 and regulation seat 3 all are in outer casing, are equipped with the cover on the outer casing, and the cover can form to the wire and cover, and detection device is when the operation, and the cover can prevent effectively that the wire from jumping out outer casing after being broken, can improve detection device's security.
In this embodiment, the adjusting seat 3 includes a mounting groove 321 for placing a wire and a base 322, a first adjusting member 324 is disposed on the upper side of the base 322, and the top end of the first adjusting member 324 is connected with the mounting groove 321, the first adjusting member 324 is used for controlling the lifting of the mounting groove 321, the first adjusting member 324 includes a fixed rod fixed on the base 322 and a movable rod in threaded connection with the fixed rod, the fixed rod is provided with a threaded hole into which the movable rod extends, and the surface of the movable rod is provided with external threads; the second adjusting member 323 is a roller disposed on the base 322, a sliding groove distributed along the length direction of the adjusting seat 3 is disposed on the casing, and the base 322 is slidably connected with the casing through the roller.
In this embodiment, two fastening chucks are mounted on the wire, the distance between the two fastening chucks is smaller than the distance between the two supporting tables 31 and is larger than the length of the detecting table 32, the connecting piece 41 is connected with the fastening chucks to fix the electronic extensometer 4 on the wire, and the fastening chucks can apply enough pressure to all single wires inside the wire, so that the relative displacement of the single wires inside the wire can be effectively avoided, and the detecting precision of this embodiment is improved; in addition, the fastening chuck can provide a reliable installation position for the electronic extensometer 4, so that the electronic extensometer 4 is more firmly and reliably installed, and the possibility of position deviation of the electronic extensometer 4 caused by stretching of a wire is reduced.
In this embodiment, a support rod 42 is disposed between the electronic extensometer 4 and the connecting piece 41, the electronic extensometer 4 is located right above one of the connecting pieces 41, and the support rod 42 can fix the electronic extensometer 4 and the connecting piece 41, so that the electronic extensometer 4 is fixed more firmly and reliably; in addition, an anti-tilting rod 43 is arranged on the connecting piece 41 right below the electronic extensometer 4, the anti-tilting rod 43 clamps the electronic extensometer 4, the connecting piece 41 comprises a fixed chuck 411 and a movable chuck 412, the fixed chuck 411 is fixedly connected with the supporting rod 42, and the movable chuck 412 is detachably connected with the fixed chuck 411.
In the embodiment, a sample of the wire is manufactured before use, the length of the wire is not less than 10 meters, and protective layers are arranged at two ends of the wire, and it is required to say that if the wire is an aluminum stranded wire, an adhesive tape is wound at the end of the wire so as to prevent the wire from stranding; if the wire is a steel strand, the end part of the wire is crimped with a steel anchor or a wedge-shaped alloy end is poured; and then two fastening chucks are arranged in the middle of the wire, the distance between the two fastening chucks is 1 meter, and the fastening chucks can effectively prevent the single wire inside the wire from generating relative displacement.
The wire after sample preparation is placed in the mounting groove 321 of the adjusting seat 3, two ends of the wire are clamped by the clamp 1, the adjusting seat 3 is controlled to lift by the first adjusting piece 324 of the adjusting seat 3, so that the hanging height of the wire is smaller than 10mm, namely, the whole wire is kept as horizontal as possible before stretching, then the electronic extensometer 4 is mounted, and the connecting piece 41 is connected with the fastening clamp by the cooperation of the fixed clamp 411 and the movable clamp 412, so that the connection between the electronic extensometer 4 and the wire is realized.
During the test, the tension machine 2 controls the clamp 1 to straighten the wire with a wire breaking force of 2%, then a strain gauge is installed, the tension of the clamp 1 is continuously increased, the strain gauge records data along with the change of the tension, a strain degree is obtained at intervals of 2.5% breaking force, when the applied force reaches 30% breaking force, the tension machine 2 keeps the tension of the clamp 1 unchanged and lasts for 0.5 hour, during the test, data is removed at 5 minutes, 10 minutes, 15 minutes and 30 minutes, and then the tension machine 2 is unloaded to the breaking force of 2% of initial load; the tensile machine 2 then applies a load to 50%, 70% and 80% of the breaking force, respectively, and holds for 1 hour at the corresponding load, and reads the data at 5 minutes, 10 minutes, 15 minutes, 30 minutes, 45 minutes and 60 minutes. Finally, the tensile machine 2 evenly increases the load until the lead is broken, and the time required for the load to reach 30% of breaking force is not less than 1 minute and not more than 2 minutes.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (8)
1. A detection device for detecting stress strain of a wire, characterized in that: including electron extensometer, the anchor clamps of centre gripping wire tip, drive anchor clamps along wire axial displacement's pulling force machine and be used for placing the regulation seat of wire, the regulation seat is equipped with the first regulating part that is used for changing the regulation seat height and supplies the second regulating part of regulation seat horizontal migration, the regulation seat includes the test table and is in the brace table at test table both ends, and the electron extensometer is equipped with two connecting pieces that are used for connecting the wire, and the electron extensometer is in between test table and the brace table with the connecting piece after the wire is connected.
2. A detection apparatus for detecting wire stress-strain as in claim 1, wherein: the wire is provided with two fastening chucks, the distance between the two fastening chucks is smaller than the distance between the two supporting tables and is larger than the length of the detection table, and the connecting piece is connected with the fastening chucks so that the electronic extensometer is fixed on the wire.
3. A detection apparatus for detecting wire stress-strain as in claim 1, wherein: a supporting rod is arranged between the electronic extensometer and the connecting piece, and the electronic extensometer is arranged right above one of the connecting pieces.
4. A detection apparatus for detecting wire stress-strain according to claim 3, wherein: and an anti-tilting rod is arranged on a connecting piece right below the electronic extensometer, and the anti-tilting rod clamps the electronic extensometer.
5. A detection apparatus for detecting wire stress-strain according to claim 3, wherein: the connecting piece comprises a fixed chuck and a movable chuck, the fixed chuck is fixedly connected with the supporting rod, and the movable chuck is detachably connected with the fixed chuck.
6. A detection apparatus for detecting wire stress-strain as in claim 1, wherein: the adjusting seat comprises an installing groove for placing a wire and a base, the first adjusting piece is arranged on the upper side of the base, the top end of the first adjusting piece is connected with the installing groove, and the first adjusting piece is used for controlling the lifting of the installing groove.
7. A sensing device for sensing wire stress-strain as in claim 6 wherein: the first adjusting piece comprises a fixed rod fixed on the base and a movable rod in threaded connection with the fixed rod, the fixed rod is provided with a threaded hole into which the movable rod extends, and the surface of the movable rod is provided with external threads.
8. A detection apparatus for detecting wire stress-strain as in claim 1, wherein: the detection device further comprises an outer shell, the electronic extensometer, the clamp, the tension machine and the adjusting seat are all arranged in the outer shell, the adjusting seat comprises a base, the second adjusting piece is a roller arranged on the base, the shell is provided with sliding grooves distributed along the length direction of the adjusting seat, and the base is in sliding connection with the shell through the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311162155.0A CN117433890A (en) | 2023-09-08 | 2023-09-08 | Detection device for detecting stress strain of lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311162155.0A CN117433890A (en) | 2023-09-08 | 2023-09-08 | Detection device for detecting stress strain of lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117433890A true CN117433890A (en) | 2024-01-23 |
Family
ID=89556008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311162155.0A Pending CN117433890A (en) | 2023-09-08 | 2023-09-08 | Detection device for detecting stress strain of lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117433890A (en) |
-
2023
- 2023-09-08 CN CN202311162155.0A patent/CN117433890A/en active Pending
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