CN117054252B - Tensile test device with scald-proof protection and sample collection function after fracture - Google Patents
Tensile test device with scald-proof protection and sample collection function after fracture Download PDFInfo
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- CN117054252B CN117054252B CN202311307707.2A CN202311307707A CN117054252B CN 117054252 B CN117054252 B CN 117054252B CN 202311307707 A CN202311307707 A CN 202311307707A CN 117054252 B CN117054252 B CN 117054252B
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- 238000009864 tensile test Methods 0.000 title claims abstract description 32
- 206010053615 Thermal burn Diseases 0.000 title claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 238000012360 testing method Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
Classifications
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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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
- G01N3/02—Details
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to a tensile test device with anti-scalding protection and post-fracture sample collection functions, which belongs to the technical field of material mechanical property test, wherein the tensile test device is provided with a funnel-shaped detachable sample collection device and consists of two symmetrical semi-funnel-shaped structures; the semi-funnel structure consists of a side wall, a lower wall, an upper wall and two identical trapezoid plane steel plates, wherein a curved edge arc at the lower end of the lower wall is welded with a curved edge Bian Yuanhu at the bottom end of the side wall, a curved edge arc at the lower end of the upper wall is welded with a curved edge arc at the top end of the side wall, the two trapezoid plane steel plates are bilaterally symmetrical, the upper bottom of the trapezoid plane steel plate is welded with the short side of the lower wall, the lower bottom is welded with the short side of the upper wall, and one end of the trapezoid plane steel plate is welded with a bus of the side wall; a pull ring is welded in the middle of the outer wall of the upper wall, the two half funnel structures are combined, the joint of one side of the two upper walls is connected by a spring hinge, and the joint of the other side is locked by a spring buckle; the stretching test device hoops are clamped at the root of the lower pull rod of the stretching test machine. The device has reasonable structure, convenient disassembly and assembly and simple use.
Description
Technical Field
The invention belongs to the technical field of mechanical property testing of materials, and particularly relates to a tensile test device with anti-scalding protection and post-fracture sample collection functions.
Background
The tensile test is one of the most commonly used detection means in the mechanical property test of materials, and the commonly used samples for the tensile test are a threaded sample and a shoulder sample, and clamps of the two samples are required to connect threads with a pull rod of a testing machine. Because the sample loading and unloading of the threaded sample is troublesome, the threaded part can be screwed in and out of the clamp only by rotating the sample round by round, so that a tester may drop the sample carelessly in the sample unloading process after the sample is pulled out, the sample collides with a device component below the clamp, and the sample can bounce, fall to the ground and roll, which makes the sample difficult to find or even lose. The high-temperature tensile test heated by the high-temperature furnace has the temperature of the broken sample up to hundreds of degrees celsius or even thousands of degrees celsius, and if the suddenly dropped sample bounces onto the body of the tester, the tester can be scalded. If it falls onto the cable or wire of the tester, the test equipment will be burned out. While the shoulder sample is easy to load and unload, the shoulder sample is easy to fall off the clamp under the huge vibration when the shoulder sample breaks off, and the sample is difficult to find and lose. In the high-temperature test using the high-temperature furnace for heating, the broken shoulder sample can fall in the high-temperature furnace chamber, if the shoulder sample falls at the joint of the bottom of the furnace chamber, when a tester opens the furnace, the high-temperature sample at hundreds of degrees centigrade or even thousands of degrees centigrade can suddenly fall out, and great potential safety hazards are brought to the tester and equipment. In addition, when the clamp is replaced in the high-temperature tensile test, the test personnel need to rotate out the screw thread connected with the pull rod round by round, and if the clamp with the high temperature of hundreds of ℃ drops accidentally, personal injury and equipment damage are likely to be caused. In fact, during the work of a large population of tensile testing personnel, the sample is difficult to find, lost, or carelessly scalded by the dropped sample or the clamp occurs.
Disclosure of Invention
The purpose of the invention is that: in order to avoid the falling of the broken test sample in the tensile test and difficult searching and losing, and especially to ensure the safety of high-temperature tensile test personnel and equipment, a broken test sample collecting device which can be used for the tensile test is needed, and the burn-in protection can be provided for the test personnel and equipment in the high-temperature furnace heating test.
In order to achieve the above object, the present invention provides a tensile test apparatus having an anti-burn protection and a post-fracture sample collection function.
The technical scheme of the invention is as follows:
the tensile test device is provided with a funnel-shaped detachable sample collection device, and the sample collection device consists of two symmetrical semi-funnel-shaped structures;
the semi-funnel structure consists of a side wall, a lower wall, an upper wall and two identical trapezoid plane steel plates, wherein the side wall is a sector steel plate when being unfolded, the lower wall and the upper wall are rectangular steel plates when being unfolded, the length of the long side of the lower wall steel plate is smaller than that of the long side of the upper wall steel plate, and the length of the short side of the lower wall steel plate is smaller than that of the short side of the upper wall steel plate;
the long side of the rectangular steel plate of the lower wall is bent to form a curve Bian Yuanhu L1, the bottom end of the side wall is bent to form a curve Bian Yuanhu L2, and the lengths and the curvature radiuses of L1 and L2 are the same; the long side of the upper wall rectangular steel plate is bent to form a curve Bian Yuanhu L3, and the top end of the side wall is bent to form a curve Bian Yuanhu L4, wherein the lengths and the curvature radiuses of L3 and L4 are the same; the trapezoid plane steel plate is isosceles trapezoid, and the waist length is the same as the length of the side wall bus;
the curved edge arc at the lower end of the lower wall is welded with the curved edge at the bottom end of the side wall, so that the curved edge arc at the upper end of the lower wall is positioned in the surrounding space of the side wall; the curved edge arc at the lower end of the upper wall and the curved edge arc at the top end of the side wall are welded together; the two trapezoid plane steel plates are symmetrically arranged left and right, the upper bottom of the trapezoid plane steel plate is welded with the short side of the lower wall, the lower bottom is welded with the short side of the upper wall, and one end of the trapezoid plane steel plate is welded with a side wall bus;
a pull ring is welded in the middle of the outer wall of the upper wall, the two half funnel-shaped structures are combined, the joints of one side of the two upper walls are connected by a spring hinge, and the joints of the other side of the two upper walls are locked by a spring buckle;
the sample collection device hoops clamp the root of the pull rod under the tensile test device.
Further, the curvature radius of the L1 is the same as the curvature radius of the root of the pull rod under the tensile test device.
Further, the maximum diameter of the sample collection device is larger than the hearth diameter of the high-temperature furnace of the tensile test device.
Further, the inner wall of the side wall and the upper edge of the trapezoid plane steel plate are provided with downward inclination angles.
The beneficial effects of the invention are as follows:
1. the device integrates the functions of collecting the samples after the tensile test is broken and protecting the high-temperature furnace from scalding by heating test personnel and equipment, and has the advantages of reasonable structure, convenience in disassembly and assembly, simplicity in use and the like.
2. The device can be flexibly assembled and disassembled on the pull-down rod, samples can be firstly installed during each test, then the device is installed, the operation of a tester in installing the samples is not hindered, the device can be quickly taken down after the test, the operation of disassembling the samples is not hindered, each semi-funnel-shaped part of the device is surrounded by the inner bottom surface and the side surface in a seamless connection mode, the dropped samples can not leak out when the device is taken down, and the shape design is also convenient for dumping the samples collected at the bottom of the device.
Drawings
Fig. 1 is a front view of a semi-funnel structure.
Fig. 2 is a front view of the sample collection device.
Fig. 3 is a top view of the sample collection device.
FIG. 4 is a schematic view of a sample collection device mounted on the lower draw bar root of a tensile testing machine.
Reference numerals: 1. the side wall, 2, the lower wall, 3, the upper wall, 4, trapezoidal plane steel plate, 6, pull ring, 7, spring hinge, 8, spring buckle, 9, lower pull rod, 10, high temperature furnace.
Detailed Description
The present invention is further specifically illustrated by examples, and is not intended to limit the scope of the invention. The materials referred to in the specific examples are commercial products, commercially available, unless specifically indicated.
Example 1
As shown in fig. 1, a tensile test device with anti-scalding protection and post-fracture sample collection functions is provided with a funnel-shaped detachable sample collection device, wherein the sample collection device consists of two symmetrical semi-funnel structures;
the semi-funnel structure consists of a side wall 1, a lower wall 2, an upper wall 3 and two identical trapezoid plane steel plates 4, wherein the side wall 1 is a sector steel plate when unfolded, the lower wall 2 and the upper wall 3 are rectangular steel plates when unfolded, the length of the long side of the lower wall 2 steel plate is smaller than that of the long side of the upper wall 3 steel plate, and the length of the short side of the lower wall 2 steel plate is smaller than that of the short side of the upper wall 3 steel plate;
the long side of the rectangular steel plate of the lower wall 2 is bent to form a curve Bian Yuanhu L1, and the bottom end of the side wall 1 is bent to form a curve Bian Yuanhu L2, wherein the lengths and the curvature radiuses of L1 and L2 are the same; the long side of the rectangular steel plate of the upper wall 3 is bent to form a curve Bian Yuanhu L3, and the top end of the side wall 1 is bent to form a curve Bian Yuanhu L4, wherein the lengths and the curvature radiuses of L3 and L4 are the same; the trapezoid plane steel plate 4 is isosceles trapezoid, and the waist length is the same as the bus length of the side wall 1;
the curved edge arc at the lower end of the lower wall 2 is welded with the curved edge at the bottom end of the side wall 1, so that the curved edge arc at the upper end of the lower wall 2 is positioned in the surrounding space of the side wall 1; the curved edge arc at the lower end of the upper wall 3 and the curved edge arc at the top end of the side wall 1 are welded together; the two trapezoid plane steel plates 4 are symmetrically arranged left and right, the upper bottom of the trapezoid plane steel plates 4 is welded with the short sides of the lower wall 2, the lower bottom is welded with the short sides of the upper wall 3, and one end of the trapezoid plane steel plates are welded with the bus of the side wall 1;
a pull ring 6 is welded in the middle of the outer wall of the upper wall 3, the two half funnel structures are combined, the joints of one side of the two upper walls 3 are connected by a spring hinge 7, and the joints of the other side of the two upper walls 3 are locked by a spring buckle 8;
as shown in fig. 2 and 3, the curvature radius of the L1 is the same as the curvature radius of the root of the pull-down rod 9 of the tensile test device, and the sample collection device is clamped to the root of the pull-down rod 9 of the tensile test device.
As shown in fig. 4, when the device is installed, the pull ring 6 is firstly grasped by hands to open two symmetrical semi-funnel structures to two sides, the two symmetrical semi-funnel structures are hooped and clamped on the pull-down rod 9 under the action of restoring force of the spring hinge 7, and after the two symmetrical semi-funnel structures are combined, the two symmetrical semi-funnel structures are locked by the spring fastener 8.
The maximum diameter of the specimen collection device is larger than the hearth diameter of the tensile test device high temperature furnace 10 in order to collect the specimen or jig that falls downward.
The inner wall of the side wall 1 and the upper edge of the trapezoid plane steel plate 4 are provided with downward inclination angles, so that a falling sample or clamp cannot rebound outwards after being bumped, and only can fall to the bottom of the funnel-shaped collecting device in a downward sliding manner, thereby playing a role in high-temperature scalding prevention protection for test personnel and equipment.
The invention is not a matter of the known technology.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (4)
1. Tensile test device with scald protection and sample collection function after breaking, its characterized in that: the tensile test device is provided with a funnel-shaped detachable sample collection device, and the sample collection device consists of two symmetrical semi-funnel-shaped structures;
the semi-funnel structure consists of a side wall (1), a lower wall (2), an upper wall (3) and two identical trapezoid plane steel plates (4), wherein the side wall (1) is a sector steel plate when unfolded, the lower wall (2) and the upper wall (3) are rectangular steel plates when unfolded, the length of the long side of the steel plate of the lower wall (2) is smaller than that of the long side of the steel plate of the upper wall (3), and the length of the short side of the steel plate of the lower wall (2) is smaller than that of the short side of the steel plate of the upper wall (3);
the long side of the rectangular steel plate of the lower wall (2) is bent to form a curve Bian Yuanhu L1, the bottom end of the side wall (1) is bent to form a curve Bian Yuanhu L2, and the lengths and the curvature radiuses of the L1 and the L2 are the same; the long side of the rectangular steel plate of the upper wall (3) is bent to form a curve Bian Yuanhu L3, and the top end of the side wall (1) is bent to form a curve Bian Yuanhu L4, wherein the lengths and the curvature radiuses of the L3 and the L4 are the same; the trapezoid plane steel plate (4) is isosceles trapezoid, and the waist length is the same as the bus length of the side wall (1);
the curved edge circular arc at the lower end of the lower wall (2) is welded with the curved edge Bian Yuanhu at the bottom end of the side wall (1), so that the curved edge circular arc at the upper end of the lower wall (2) is positioned in the surrounding space of the side wall (1); the curved edge arc at the lower end of the upper wall (3) and the curved edge arc at the top end of the side wall (1) are welded together; the two trapezoid plane steel plates (4) are symmetrically arranged left and right, the upper bottom of the trapezoid plane steel plates (4) is welded with the short sides of the lower wall (2), the lower bottom is welded with the short sides of the upper wall (3), and one end of the trapezoid plane steel plates are welded with the bus of the side wall (1);
a pull ring (6) is welded in the middle of the outer wall of the upper wall (3), the two half funnel structures are combined, the joints of one side of the two upper walls (3) are connected by a spring hinge (7), and the joints of the other side of the two upper walls (3) are locked by a spring buckle (8);
the sample collection device is clamped at the root of a pull rod (9) of the tensile test device.
2. The tensile test device with burn-out protection and post-failure sample collection function according to claim 1, wherein: the curvature radius of the L1 is the same as the curvature radius of the root of a pull-down rod (9) of the tensile test device.
3. The tensile test device with burn-out protection and post-failure sample collection function according to claim 1, wherein: the maximum diameter of the sample collection device is larger than the hearth diameter of a high-temperature furnace (10) of the tensile test device.
4. The tensile test device with burn-out protection and post-failure sample collection function according to claim 1, wherein: the inner wall of the side wall (1) and the upper edge of the trapezoid plane steel plate (4) are provided with downward inclination angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311307707.2A CN117054252B (en) | 2023-10-11 | 2023-10-11 | Tensile test device with scald-proof protection and sample collection function after fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311307707.2A CN117054252B (en) | 2023-10-11 | 2023-10-11 | Tensile test device with scald-proof protection and sample collection function after fracture |
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| Publication Number | Publication Date |
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| CN117054252A CN117054252A (en) | 2023-11-14 |
| CN117054252B true CN117054252B (en) | 2023-12-12 |
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