CN111537335A - Single-space universal testing machine - Google Patents
Single-space universal testing machine Download PDFInfo
- Publication number
- CN111537335A CN111537335A CN202010331831.2A CN202010331831A CN111537335A CN 111537335 A CN111537335 A CN 111537335A CN 202010331831 A CN202010331831 A CN 202010331831A CN 111537335 A CN111537335 A CN 111537335A
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 238000005303 weighing Methods 0.000 claims abstract description 34
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000009864 tensile test Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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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
- G01N3/02—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a single-space universal testing machine, which is technically characterized in that: including testing machine body, fixed jaw and removal keep silent, fixed jaw and remove and install the survey device between keeping silent, the survey device includes positioner and range finding sensor, install the encoder between crossbeam and the back timber, positioner sets up on fixed jaw, the solid setting of laser centering sensor is on removing jaw, positioner includes fixing base, weighing sensor, dish and support frame of weighing, the fixing base is installed on fixed jaw, weighing sensor installs on the fixing base, the dish of weighing sets up at the weighing sensor upside, the support frame is fixed on the dish of weighing, fixed jaw inner wall and removal keep the parallel and level with positioner and range finding sensor's last edge and lower edge respectively. According to the invention, the accurate jaw distance is directly positioned through the weighing sensor and the laser centering sensor, and the theoretical deviation of the test bar is measured.
Description
Technical Field
The invention relates to a single-space universal testing machine.
Background
The single-space universal testing machine is suitable for the tensile test of metal bars and plates, the tensile test of deformed steel bars, the tensile test of steel strands, the tensile test of high-strength and high-hardness metal materials and the compression test of metal and concrete. In metal bar's test process, need operate earlier that the crossbeam rises or descends and change the distance between two upper and lower jaws to metal bar's installation, and then the clamp of operation jaw tightly, and concrete experimental operation, and metal bar in the actual test process differs in size, and the distance of keeping silent through the naked eye observation comes the adjusting position, need carry out a lot of adjustments, and the distance that can make when installing between the jaw appears the deviation with the installation distance, causes experimental error. In addition, in the actual test, the metal bars are changed in the processes of production, transportation, cutting and the like, theoretical deviation occurs between the theoretical length and the theoretical weight of the metal bars, and in order to ensure the test accuracy, the measurement and calculation of the theoretical deviation value of the metal bars are an essential part of the test.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a single-space universal testing machine.
In order to achieve the purpose, the invention provides the following technical scheme:
a single-space universal testing machine comprises a testing machine body and a testing bar, wherein the testing machine body comprises a bottom plate, a guide pillar and a top beam, the testing machine body is provided with a cross beam, a lifting device, a pressure sensor, a fixed jaw and a movable jaw, the lower end of the lifting device is fixed on a bottom plate, the upper end of the lifting device is connected with the cross beam, the cross beam is sleeved on the guide pillar in a sliding fit manner, the pressure sensor is fixed on the bottom plate, two opposite jaws are respectively fixed on the lower side of the cross beam and the upper side of the pressure sensor, a measuring device is arranged between the fixed jaw and the movable jaw, the measuring device comprises a positioning device and a distance measuring sensor, the positioning device and the distance measuring sensor are respectively arranged on the fixed jaw and the movable jaw, the test bar is fixed on the positioning device, the other end of the test bar extends towards the direction of the distance measuring sensor, and an encoder is installed between the cross beam and the top beam.
Preferably, the inner wall of the fixed jaw and the inner wall of the movable jaw are flush with the upper edge and the lower edge of the positioning device and the ranging sensor respectively.
Through the technical scheme, the positioning device and the distance measuring sensor are arranged between the fixed jaw and the movable jaw and are parallel to the inner wall of the hydraulic jaw, so that the distance between the positioning device and the distance measuring sensor measured in the test operation process is the required mounting height of the test bar, the encoder records the required mounting height and the original height of the test, and the height is the 0 scale position in the test process, so that the mounting and measuring results of the test bar are more accurate.
Preferably, the positioning device is arranged on the fixed jaw, the distance measuring sensor is fixedly arranged on the movable jaw, the positioning device comprises a fixed seat, a weighing sensor, a weighing plate and a plurality of support frames, the fixed seat is arranged on the fixed jaw, the weighing sensor is arranged on the fixed seat, the weighing plate is arranged on the upper side of the weighing sensor, and the support frames are fixed on the weighing plate.
Through above-mentioned technical scheme, positioner sets up to weighing sensor to through bearing disc and support frame fixed test rod, can measure the theoretical offset value of experimental rod, realize the measurement and the record to theoretical offset value, make the test result more accurate.
Preferably, the support frame comprises a spring seat, a pressure spring, a sliding block and a limiting clamp, the spring seat is fixed on the weighing disc, a spring cylinder is arranged on the spring seat, the pressure spring and the sliding block are installed in the spring cylinder, and the limiting clamp is fixed on the sliding block.
Preferably, the supporting frames are circumferentially distributed on the weighing plate, one side of the limiting clamp, which is back to the sliding block, is arc-shaped, the limiting clamps jointly form a supporting groove for fixing the test bar, and the test bar is fixed in the supporting groove.
Preferably, a limiting groove is formed in the upper side of the spring seat and communicated with the spring barrel, a limiting block is arranged at a position, corresponding to the limiting groove, of the sliding block, and the limiting block is in sliding fit with the limiting groove.
Through above-mentioned technical scheme, the size of the support groove that the structure setting of support frame can be formed between a plurality of spring holder through the compression adjustment of spring to satisfy the support of the experimental rod of unidimensional not required.
Preferably, the distance measuring sensor is any one of a laser centering sensor and a magnetic sensor.
Preferably, the distance measuring sensor is a laser centering sensor.
Through the technical scheme, the laser centering sensor is selected as the distance measuring sensor, so that the measuring result is more accurate.
Preferably, the lifting device comprises two hydraulic oil cylinders which are symmetrically arranged, the lower ends of the two hydraulic oil cylinders are fixed on the bottom plate, and the upper ends of the two hydraulic oil cylinders are fixed on the cross beam.
Through the technical scheme, the hydraulic oil cylinder arranged on the base plate is adopted to replace the original lifting device arranged at the top, the oil cylinder upper position commonly used by the single-space testing machine is changed into the oil cylinder lower position, the gravity center of the equipment is greatly reduced, and the overall height is greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of a single-space universal tester of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural diagram of the present invention.
Reference numerals: 1. a base plate; 2. a top beam; 3. a guide post; 4. a cross beam; 5. a hydraulic cylinder; 6. a pressure sensor; 7. fixing the jaw; 8. moving the jaw; 9. laser centering the sensor; 10. a fixed seat; 11. a weighing sensor; 12. a weighing pan; 13. a support frame; 131. a spring seat; 132. a pressure spring; 133. a sliding block; 134. and a limiting clamp.
Detailed Description
A single space universal tester according to the present invention is further illustrated by the accompanying figures 1-3.
A single-space universal testing machine comprises a testing machine body, wherein the testing machine body comprises a bottom plate 1 and a top beam 2, guide pillars 3 are arranged between the bottom plate 1 and the top beam 2, four guide pillars 3 are optical axes of high-carbon steel surface hard chrome plating, the four optical axes are respectively arranged at four corners of the bottom plate 1 and the top beam 2, a cross beam 4, a lifting device, a pressure sensor 6, a fixed jaw 7 and a movable jaw 8 are arranged on the testing machine body, the pressure sensor 6 adopts a double-flange tension and compression two-way load sensor, the lifting device comprises two hydraulic oil cylinders 5 which are symmetrically arranged, the lower ends of the two hydraulic oil cylinders 5 are fixed on the bottom plate 1, the upper ends of the two hydraulic oil cylinders are fixed on the cross beam 4, guide holes are arranged at positions of the cross beam 4 corresponding to the four guide pillars 3, the guide holes are sleeved on the guide pillars 3, the cross beam 4 is, a measuring device is arranged between the fixed jaw 7 and the movable jaw 8, the measuring device comprises a positioning device and a distance measuring sensor, the distance measuring sensor is a laser centering sensor 9, the positioning device and the distance measuring sensor are respectively arranged on the fixed jaw 7 and the movable jaw 8, the inner wall of the fixed jaw 7 and the inner wall of the movable jaw 8 are respectively kept flush with the upper edge and the lower edge of the positioning device and the distance measuring sensor, the positioning device is arranged on the fixed jaw 7, the distance measuring sensor is fixedly arranged on the movable jaw 8, the positioning device comprises a fixed seat 10, a weighing sensor 11, a weighing disk 12 and a plurality of supporting frames 13, the fixed seat 10 is arranged on the fixed jaw 7, the weighing sensor 11 is arranged on the fixed seat 10, the weighing disk 12 is arranged on the upper side of the weighing sensor 11, and the supporting frames 13 are fixed on the weighing disk 12, the test bar is fixed on the positioning device, the other end of the test bar extends towards the direction of the distance measuring sensor, an encoder 14 is installed between the cross beam 4 and the top beam 2, the encoder 14 is a draw-out type photoelectric encoder 14, the bearing sensor, the laser centering sensor 9 and the pressure sensor 6 are all connected to the PLC, the test bar is prevented from being on the support frame 13 in the test process, the bearing sensor transmits the weight of the test bar and the height of the test bar to the PLC through the laser centering sensor 9, the PLC records and calculates a theoretical deviation value and directly uses the theoretical deviation value in a measurement result in a subsequent tensile test, and meanwhile, the installation position and the test initial position of the simulation test bar can be determined by setting the positions of the laser centering sensor 9 and the bottom of the bearing plate, namely the positions of two ends of the test bar, the PLC now records the height of the extraction photoelectric encoder 14 at this point and in the test as the "0" point at the time of the test.
Further, the supporting frame 13 comprises a spring seat 131, a pressure spring 132, a sliding block 133 and a limiting clamp 134, the spring seat 131 is fixed on the weighing tray 12, a spring barrel is arranged on the spring seat 131, the pressure spring 132 and the sliding block 133 are installed in the spring barrel, the limiting clamp 134 is fixed on the sliding block 133, the supporting frame 13 is circumferentially distributed on the weighing tray 12, one side of the limiting clamp 134, which faces away from the sliding block 133, is arc-shaped, the limiting clamp 134 jointly forms a supporting groove for fixing a test bar, the test bar is fixed in the supporting groove, a limiting groove is formed in the upper side of the spring seat 131 and communicated with the spring barrel, a limiting block is arranged at a position where the sliding block 133 corresponds to the limiting groove, and the limiting block is in sliding fit with the limiting groove.
In addition, the distance measuring sensor can also be a magnetic sensor.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The utility model provides a single space universal tester, includes testing machine body and experimental rod, and the testing machine body includes bottom plate, guide pillar and back timber, install crossbeam, elevating gear, pressure sensor, fixed jaw and removal jaw on the testing machine body, the crossbeam slides the cooperation cover and establishes on the guide pillar, and pressure sensor fixes on the bottom plate, and two subtend jaws are fixed respectively at crossbeam downside and pressure sensor upside, its characterized in that: fixed jaw and remove and install survey device between keeping silent, survey device includes positioner and range finding sensor, positioner and range finding sensor set up respectively keep silent at fixed jaw and remove and keep silent, fixing of experimental rod is on positioner, and the other end extends towards range finding sensor direction, install the encoder between crossbeam and the back timber.
2. The single-space universal tester of claim 1, wherein: and the inner wall of the fixed jaw and the inner wall of the movable jaw are respectively kept flush with the upper edge and the lower edge of the positioning device and the ranging sensor.
3. The single-space universal tester of claim 1, wherein: the positioning device is arranged on the fixed jaw, the distance measuring sensor is fixedly arranged on the movable jaw, the positioning device comprises a fixed seat, a weighing sensor, a weighing plate and a plurality of support frames, the fixed seat is arranged on the fixed jaw, the weighing sensor is arranged on the fixed seat, the weighing plate is arranged on the upper side of the weighing sensor, and the support frames are fixed on the weighing plate.
4. The single-space universal tester of claim 3, wherein: the support frame comprises a spring seat, a pressure spring, a sliding block and a limiting clamp, the spring seat is fixed on the weighing disc, a spring barrel is arranged on the spring seat, the pressure spring and the sliding block are installed in the spring barrel, and the limiting clamp is fixed on the sliding block.
5. The single-space universal tester of claim 4, wherein: the supporting frames are circumferentially distributed on the weighing plate, one side, back to the sliding block, of each limiting clamp is arc-shaped, the limiting clamps form a supporting groove for fixing the test bars together, and the test bars are fixed in the supporting groove.
6. The single-space universal tester of claim 5, wherein: the limiting groove is formed in the upper side of the spring seat and communicated with the spring barrel, a limiting block is arranged at the position, corresponding to the limiting groove, of the sliding block, and the limiting block is in sliding fit with the limiting groove.
7. The single-space universal tester of claim 1, wherein: the distance measuring sensor is any one of a laser centering sensor and a magnetic sensor.
8. The single-space universal tester of claim 7, wherein: the distance measuring sensor is a laser centering sensor.
9. The single-space universal tester of claim 1, wherein: the lifting device comprises two hydraulic oil cylinders which are symmetrically arranged, the lower ends of the two hydraulic oil cylinders are fixed on the bottom plate, and the upper ends of the two hydraulic oil cylinders are fixed on the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331831.2A CN111537335B (en) | 2020-04-24 | 2020-04-24 | Single-space universal testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010331831.2A CN111537335B (en) | 2020-04-24 | 2020-04-24 | Single-space universal testing machine |
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| Publication Number | Publication Date |
|---|---|
| CN111537335A true CN111537335A (en) | 2020-08-14 |
| CN111537335B CN111537335B (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010331831.2A Active CN111537335B (en) | 2020-04-24 | 2020-04-24 | Single-space universal testing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362465A (en) * | 2021-01-14 | 2021-02-12 | 南京研华智能科技有限公司 | Jaw device suitable for tensile testing machine |
| CN113188932A (en) * | 2021-05-11 | 2021-07-30 | 济南三勤测试技术有限公司 | Fatigue test system host |
| CN113188933A (en) * | 2021-05-11 | 2021-07-30 | 济南三勤测试技术有限公司 | Fatigue test system |
| CN114323224A (en) * | 2020-09-29 | 2022-04-12 | 上海梅山钢铁股份有限公司 | Method for improving stability of panel of truck scale |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110137847A (en) * | 2010-06-18 | 2011-12-26 | 현대중공업 주식회사 | Photovoltaic module strength measuring device using universal testing machine |
| JP2016205824A (en) * | 2015-04-15 | 2016-12-08 | 株式会社島津製作所 | Material testing machine |
| CN109443925A (en) * | 2018-12-14 | 2019-03-08 | 南京玻璃纤维研究设计院有限公司 | A kind of test device of fibre single thread tensile modulus of elasticity |
| CN209690080U (en) * | 2019-03-13 | 2019-11-26 | 绍兴市容纳测控技术有限公司 | A kind of modified reinforcing steel bar bending tester |
| TWM591617U (en) * | 2019-10-29 | 2020-03-01 | 鴻寶興業有限公司 | Cold Shrink Film Detector |
| CN212110892U (en) * | 2020-04-24 | 2020-12-08 | 绍兴市容纳测控技术有限公司 | Single-space universal testing machine |
-
2020
- 2020-04-24 CN CN202010331831.2A patent/CN111537335B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110137847A (en) * | 2010-06-18 | 2011-12-26 | 현대중공업 주식회사 | Photovoltaic module strength measuring device using universal testing machine |
| JP2016205824A (en) * | 2015-04-15 | 2016-12-08 | 株式会社島津製作所 | Material testing machine |
| CN109443925A (en) * | 2018-12-14 | 2019-03-08 | 南京玻璃纤维研究设计院有限公司 | A kind of test device of fibre single thread tensile modulus of elasticity |
| CN209690080U (en) * | 2019-03-13 | 2019-11-26 | 绍兴市容纳测控技术有限公司 | A kind of modified reinforcing steel bar bending tester |
| TWM591617U (en) * | 2019-10-29 | 2020-03-01 | 鴻寶興業有限公司 | Cold Shrink Film Detector |
| CN212110892U (en) * | 2020-04-24 | 2020-12-08 | 绍兴市容纳测控技术有限公司 | Single-space universal testing machine |
Non-Patent Citations (1)
| Title |
|---|
| 李曼;苏俊;李觉非;: "新型矿用圆环链静拉伸试验自动检测装置", 煤炭技术, no. 12, 10 December 2015 (2015-12-10) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323224A (en) * | 2020-09-29 | 2022-04-12 | 上海梅山钢铁股份有限公司 | Method for improving stability of panel of truck scale |
| CN114323224B (en) * | 2020-09-29 | 2024-05-10 | 上海梅山钢铁股份有限公司 | Method for improving stability of automobile balance panel |
| CN112362465A (en) * | 2021-01-14 | 2021-02-12 | 南京研华智能科技有限公司 | Jaw device suitable for tensile testing machine |
| CN113188932A (en) * | 2021-05-11 | 2021-07-30 | 济南三勤测试技术有限公司 | Fatigue test system host |
| CN113188933A (en) * | 2021-05-11 | 2021-07-30 | 济南三勤测试技术有限公司 | Fatigue test system |
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| Publication number | Publication date |
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| CN111537335B (en) | 2024-08-09 |
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