CN111811928A - High-low temperature tensile test machine - Google Patents
High-low temperature tensile test machine Download PDFInfo
- Publication number
- CN111811928A CN111811928A CN202010896767.2A CN202010896767A CN111811928A CN 111811928 A CN111811928 A CN 111811928A CN 202010896767 A CN202010896767 A CN 202010896767A CN 111811928 A CN111811928 A CN 111811928A
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- temperature
- pull rod
- temperature change
- low temperature
- testing machine
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- 238000009864 tensile test Methods 0.000 title claims description 26
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 15
- 230000000704 physical effect Effects 0.000 description 5
- 230000002337 anti-port Effects 0.000 description 2
- 230000036314 physical performance Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006698 induction Effects 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
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- G01N3/02—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
- G01N3/08—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
Abstract
The invention relates to the technical field of tension testing equipment, in particular to a high-low temperature tension testing machine which comprises a temperature change box, an upper pull rod arranged on the temperature change box, a lower pull rod movably penetrating through the temperature change box and a sealing ring, wherein the temperature change box is provided with a through hole, the lower pull rod enters the temperature change box through the through hole, the sealing ring is used for sealing a gap between the lower pull rod and the through hole, and a heating device is arranged inside the lower pull rod. According to the high-low temperature tension testing machine, the sealing ring is arranged between the lower pull rod and the temperature change box, so that the lower pull rod can smoothly penetrate through the temperature change box, the temperature change box is relatively sealed, the heating device is arranged in the lower pull rod, the temperature of the lower pull rod can be increased, a refrigerator condensed on the surface of the lower pull rod can be dissolved, the pull rod and a box body are prevented from being fixed, and the accurate performance of a tension test at high temperature and low temperature is ensured.
Description
Technical Field
The invention relates to the technical field of tensile testing equipment, in particular to a high-low temperature tensile testing machine.
Background
The tensile testing machine is a mechanical stress testing machine for testing mechanical properties of materials such as static load, tension, compression, bending, shearing, peeling and the like, is suitable for testing various physical and mechanical properties of materials such as plastic plates, pipes, profiled bars, plastic films, rubber, wires, cables and the like, is developed for materials, is indispensable detection equipment for physical property tests, teaching research, quality control and the like, a source peak tensile machine clamp is used as an important component of an instrument, different materials need different clamps, and the tensile testing machine is also an important factor for testing whether the test can be carried out smoothly and testing result accuracy is high.
The influence of the temperature change on the test piece is very serious, so that the high-low temperature tensile testing machine is indispensable equipment for detecting the temperature influence, but the situation that the pull rod is frozen easily occurs in the existing high-low temperature tensile testing machine under the low-temperature situation, so that the pull rod and the box body are fixed together, and the tensile data test cannot be carried out, so that a technical scheme for solving the technical problem is needed urgently.
Disclosure of Invention
The invention aims to provide a high-low temperature tension tester aiming at the defects in the prior art, wherein a sealing ring is arranged between a lower pull rod and a temperature change box, so that the lower pull rod can smoothly penetrate through the temperature change box, the relative sealing of the temperature change box is ensured, a heating device is arranged in the lower pull rod, the temperature of the lower pull rod can be increased, a refrigerator condensed on the surface of the lower pull rod can be dissolved, the fixation of the pull rod and a box body is avoided, and the accurate performance of the tension test at high temperature and low temperature is ensured.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a high low temperature tensile test machine, includes the temperature change case, sets up in the last pull rod of temperature change case, and the activity is worn to locate the lower link of temperature change case and is set up in the sealing washer of temperature change case, the temperature change case is provided with the through-hole, and the lower link gets into the temperature change case through the through-hole, and the sealing washer is used for sealing the clearance between lower link and the through-hole, and the inside heating device that is provided with of lower link.
The high-low temperature tensile testing machine is further provided with a bottom gasket and an upper cover, the bottom gasket is used for bearing a sealing ring, the upper cover is used for covering and fixing the sealing ring, the sealing ring is located between the upper cover and the bottom gasket, and the upper cover is detachably connected with the bottom gasket.
The high-low temperature tensile testing machine is characterized in that the high-low temperature tensile testing machine is further provided with a driving device for driving the lower pull rod to move in the vertical direction, the driving device comprises a fixed support arranged on the temperature change box, a driving motor arranged on the fixed support, a transmission screw connected with an output shaft of the driving motor and a sliding block arranged on the fixed support in a sliding mode, the transmission screw is in threaded connection with the sliding block, the transmission screw is arranged on the fixed support in a rotating mode, the driving motor drives the transmission screw to rotate around the shaft, and the sliding block is fixedly connected with the lower pull rod.
The temperature change box is provided with a constant-temperature constant-humidity sealing door for opening or closing an inner cavity of the temperature change box, and the constant-temperature constant-humidity sealing door is provided with an observation window.
The top of the temperature change box is provided with a tension sensing device used for sensing tension borne by the upper pull rod, the tension sensing device comprises a sensing support and an inductor, the sensing support is fixedly arranged at the top of the temperature change box, one end of the upper pull rod is connected with the sensing support through the inductor, and the other end of the upper pull rod stretches into the temperature change box and is arranged opposite to the lower pull rod.
The high-low temperature tensile testing machine further comprises a temperature adjusting device for adjusting the temperature of the temperature transformer box, and the temperature adjusting device comprises an air heater for increasing the temperature in the temperature transformer box and a condensing device for reducing the temperature in the temperature transformer box.
The invention has the beneficial effects that: according to the high-low temperature tension testing machine, the sealing ring is arranged between the lower pull rod and the temperature change box, so that the lower pull rod can smoothly penetrate through the temperature change box, the temperature change box is relatively sealed, the heating device is arranged in the lower pull rod, the temperature of the lower pull rod can be increased, a refrigerator condensed on the surface of the lower pull rod can be dissolved, the pull rod and a box body are prevented from being fixed, and the accurate performance of the tension testing at high temperature and low temperature is ensured.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an assembly view of the lower link, the packing and the driving device of the present invention.
Fig. 3 is an assembly view of the lower tie rod, seal ring and drive assembly of the present invention from another perspective.
Fig. 4 is an exploded view of the seal ring, base gasket and upper cover of the present invention.
The reference numerals include: 1. a temperature change box; 12. a constant temperature and humidity sealing door; 121. an observation window; 2. an upper pull rod; 3. a lower pull rod; 31. a heating device; 4. a seal ring; 5. a bottom gasket; 6. an upper cover; 7. a drive device; 71. fixing a bracket; 72. A drive motor; 73. a drive screw; 74. a slider; 8. a tension sensing device; 81. an induction support; 82. an inductor; 9. a temperature adjustment device; 91. an air heater; 92. a condensing unit.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, 2 and 3, the high and low temperature tensile testing machine of the present embodiment includes a temperature-variable box 1, an upper pull rod 2 disposed in the temperature-variable box 1, a lower pull rod 3 movably disposed in the temperature-variable box 1, and a sealing ring 4 disposed in the temperature-variable box 1, wherein the temperature-variable box 1 is provided with a through hole, the lower pull rod 3 enters the temperature-variable box 1 through the through hole, the sealing ring 4 is used for sealing a gap between the lower pull rod 3 and the through hole, and a heating device 31 is disposed inside the lower pull rod 3.
According to the high-low temperature tension testing machine, the sealing ring 4 is arranged between the lower pull rod 3 and the temperature change box 1, so that the air tightness of the temperature change box 1 is guaranteed, external water vapor is prevented from entering the temperature change box 1, meanwhile, the lower pull rod 3 can smoothly penetrate through the temperature change box 1, the heating device 31 is arranged in the lower pull rod 3, the temperature of the lower pull rod 3 can be increased, frost condensed on the surface of the lower pull rod 3 due to low temperature can be quickly dissolved, the pull rod is prevented from being fixed with a box body, and the accurate performance of tension testing at low temperature is guaranteed. Preferably, sealing washer 4 is silica gel sealing washer 4, and the material is soft, and can be applicable to in sealed temperature change case 1. The upper pull rod 2 is arranged opposite to the lower pull rod 3, and the upper pull rod 2 is positioned above the lower pull rod 3.
As shown in fig. 1 and 4, the high and low temperature tensile testing machine of this embodiment is further provided with a bottom gasket 5 and an upper cover 6, the bottom gasket 5 is used for bearing the sealing ring 4, the upper cover 6 is used for covering and fixing the sealing ring 4, the sealing ring 4 is located between the bottom gasket 5 and the upper cover 6, and the upper cover 6 is detachably connected with the bottom gasket 5. Bottom gasket 5 and 1 fixed connection of temperature change case, bottom gasket 5 sets up in the through-hole, and sealing washer 4 sets up in bottom gasket 5 upper end, and upper cover 6 sets up in sealing washer 4 upper end and can dismantle with bottom gasket 5 and be connected, and upper cover 6 and bottom gasket 5 can wrap up sealing washer 4, avoid sealing washer 4 directly to expose in the air, increase sealing washer 4's life, and guaranteed sealing washer 4's stability, avoid sealing washer 4 to break away from the through-hole to it can the steady job to have guaranteed sealing washer 4.
As shown in fig. 1, fig. 2 and fig. 3, the high and low temperature tensile testing machine of the present embodiment further includes a driving device 7 for driving the lower pull rod 3 to move along the vertical direction, the driving device 7 includes a fixing bracket 71 disposed on the temperature-variable box 1, a driving motor 72 disposed on the fixing bracket 71, a transmission screw 73 connected to an output shaft of the driving motor 72, and a sliding block 74 slidably disposed on the fixing bracket 71, the transmission screw 73 is in threaded connection with the sliding block 74, the transmission screw 73 is rotatably disposed on the fixing bracket 71, the driving motor 72 drives the transmission screw 73 to rotate from the axis, and the sliding block 74 is fixedly connected with the lower pull rod 3. The driving device 7 of this embodiment moves the slide block 74 via the drive screw 73, thereby moving the lower link 3 in the vertical direction. The during operation, driving motor 72 starts and drives drive screw 73 and rotates, drive screw 73 slides along drive screw's pivot axis through external screw thread drive sliding block 74, thereby make lower pull rod 3 reciprocate along fixed bolster 71, driving motor 72 can forward rotation and antiport, when driving motor 72 forward rotation, sliding block 74 rebound, lower pull rod 3 upwards stretches into temperature change case 1, when driving motor 72 antiport, sliding block 74 rebound, lower pull rod 3 removes towards the direction that stretches out temperature change case 1, thereby carry out the tensile test to the material that awaits measuring.
As shown in fig. 1, the temperature-variable box 1 of the present embodiment is provided with a constant temperature and humidity sealing door 12 for opening or closing an inner cavity of the temperature-variable box 1, and the constant temperature and humidity sealing door 12 is provided with an observation window 121. Constant temperature and humidity sealing door 12 can seal temperature change case 1, and the interior environmental treatment of incasement is invariable state when guaranteeing the test ensures that temperature and humidity are invariable, improves the test accuracy. Meanwhile, the constant temperature and humidity sealing door 12 is provided with an observation window 121, so that the condition in the temperature change box 1 can be observed, and the smooth test is ensured.
As shown in fig. 1, a tension sensing device 8 for sensing tension borne by the upper pull rod 2 is disposed at the top of the temperature change box 1 in this embodiment, the tension sensing device 8 includes a sensing bracket 81 and an inductor 82, the sensing bracket 81 is fixedly disposed at the top of the temperature change box 1, one end of the upper pull rod 2 is connected with the sensing bracket 81 through the inductor 82, and the other end of the upper pull rod 2 extends into the temperature change box 1 and is disposed opposite to the lower pull rod 3. The tension sensing device 8 can sense the maximum tension which can be borne by the material to be tested in the process of being stretched to be broken, so that the physical performance parameters of the material to be tested can be obtained. The upper pull rod 2 and the lower pull rod 3 are on the same straight line, and when a material to be tested is clamped between the upper pull rod 2 and the lower pull rod 3, the material to be tested is stretched into a straight line, so that component forces in different directions are avoided, and physical performance parameters of the material to be tested are accurately obtained.
As shown in fig. 1, the high and low temperature tensile testing machine of the present embodiment further includes a temperature adjusting device 9 for adjusting the temperature of the temperature-variable box 1, the temperature adjusting device 9 includes an air heater 91 for increasing the temperature in the temperature-variable box 1 and a condensing device 92 for reducing the temperature in the temperature-variable box 1, and both the air heater 91 and the condensing device 92 are disposed in the temperature-variable box 1. When the physical property of the material is tested in a high-temperature environment, the air heater 91 heats the air in the temperature change box 1 until the temperature reaches a set value, so that the physical property of the material at a preset high temperature is tested; when the physical property of the material is tested in a low-temperature environment, the condensing device 92 cools the air in the temperature change tank 1, so that the environment in the temperature change tank 1 is reduced to a set value, and the physical property of the material at a preset low temperature is tested.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a high low temperature tensile test machine which characterized in that: including the temperature change case, set up in the last pull rod of temperature change case, the activity wear to locate the lower link of temperature change case and set up in the sealing washer of temperature change case, the temperature change case is provided with the through-hole, and the lower link gets into the temperature change case through the through-hole, and the sealing washer is used for sealing the clearance between lower link and the through-hole, and the inside heating device that is provided with of lower link.
2. The high and low temperature tensile testing machine of claim 1, wherein: the high-low temperature tensile force testing machine is further provided with a bottom gasket and an upper cover, the bottom gasket is used for bearing the sealing ring, the upper cover is used for covering and fixing the sealing ring, the sealing ring is located between the upper cover and the bottom gasket, and the upper cover is detachably connected with the bottom gasket.
3. The high and low temperature tensile testing machine of claim 1, wherein: the high-low temperature tensile testing machine further comprises a driving device for driving the lower pull rod to move in the vertical direction, the driving device comprises a fixed support arranged on the temperature change box, a driving motor arranged on the fixed support, a transmission screw connected with an output shaft of the driving motor and a sliding block arranged on the fixed support in a sliding mode, the transmission screw is in threaded connection with the sliding block, the transmission screw is arranged on the fixed support in a rotating mode, the driving motor drives the transmission screw to rotate around the shaft, and the sliding block is fixedly connected with the lower pull rod.
4. The high and low temperature tensile testing machine of claim 1, wherein: the temperature becomes the case and is provided with the constant temperature and humidity sealing door that is used for opening or closing the inner chamber of temperature change case, and constant temperature and humidity sealing door is provided with the observation window.
5. The high and low temperature tensile testing machine of claim 1, wherein: the top of the temperature change box is provided with a tension sensing device used for sensing tension borne by the upper pull rod, the tension sensing device comprises a sensing support and an inductor, the sensing support is fixedly arranged at the top of the temperature change box, one end of the upper pull rod is connected with the sensing support through the inductor, and the other end of the upper pull rod extends into the temperature change box and is arranged opposite to the lower pull rod.
6. The high and low temperature tensile testing machine of claim 1, wherein: the high-low temperature tensile testing machine further comprises a temperature adjusting device for adjusting the temperature of the temperature change box, and the temperature adjusting device comprises an air heater for increasing the temperature in the temperature change box and a condensing device for reducing the temperature in the temperature change box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896767.2A CN111811928A (en) | 2020-08-31 | 2020-08-31 | High-low temperature tensile test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896767.2A CN111811928A (en) | 2020-08-31 | 2020-08-31 | High-low temperature tensile test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111811928A true CN111811928A (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010896767.2A Pending CN111811928A (en) | 2020-08-31 | 2020-08-31 | High-low temperature tensile test machine |
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| Country | Link |
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| CN (1) | CN111811928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791032A (en) * | 2021-09-08 | 2021-12-14 | 营口理工学院 | Physical parameter testing device and method |
| CN113884390A (en) * | 2021-03-11 | 2022-01-04 | 四川大学 | High-temperature tensile test cabin for armored cable of heat insulation test bed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156933A (en) * | 2002-11-05 | 2004-06-03 | Toyo Seiki Seisakusho:Kk | Automatic tension testing machine with constant temperature bath |
| CN203849116U (en) * | 2014-04-17 | 2014-09-24 | 东莞市众志检测仪器有限公司 | High- and low-temperature tensile testing machine |
| CN205593856U (en) * | 2016-04-26 | 2016-09-21 | 东莞市威邦仪器设备有限公司 | High - and low -temperature tensile testing machine |
| CN110726623A (en) * | 2019-10-29 | 2020-01-24 | 深圳市建研检测有限公司 | Sealant high-temperature tensile test device |
| CN210037557U (en) * | 2019-03-07 | 2020-02-07 | 广州碧然环保有限公司 | Device for testing adhesive force of anti-icing coating |
-
2020
- 2020-08-31 CN CN202010896767.2A patent/CN111811928A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004156933A (en) * | 2002-11-05 | 2004-06-03 | Toyo Seiki Seisakusho:Kk | Automatic tension testing machine with constant temperature bath |
| CN203849116U (en) * | 2014-04-17 | 2014-09-24 | 东莞市众志检测仪器有限公司 | High- and low-temperature tensile testing machine |
| CN205593856U (en) * | 2016-04-26 | 2016-09-21 | 东莞市威邦仪器设备有限公司 | High - and low -temperature tensile testing machine |
| CN210037557U (en) * | 2019-03-07 | 2020-02-07 | 广州碧然环保有限公司 | Device for testing adhesive force of anti-icing coating |
| CN110726623A (en) * | 2019-10-29 | 2020-01-24 | 深圳市建研检测有限公司 | Sealant high-temperature tensile test device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884390A (en) * | 2021-03-11 | 2022-01-04 | 四川大学 | High-temperature tensile test cabin for armored cable of heat insulation test bed |
| CN113884390B (en) * | 2021-03-11 | 2023-04-25 | 四川大学 | High-temperature tensile test cabin for armor cable of heat preservation test stand |
| CN113791032A (en) * | 2021-09-08 | 2021-12-14 | 营口理工学院 | Physical parameter testing device and method |
| CN113791032B (en) * | 2021-09-08 | 2023-09-01 | 营口理工学院 | Physical parameter testing device and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |
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| RJ01 | Rejection of invention patent application after publication |