CN111307601A - HRB500E reinforcing bar yield strength's testing arrangement - Google Patents
HRB500E reinforcing bar yield strength's testing arrangement Download PDFInfo
- Publication number
- CN111307601A CN111307601A CN202010205121.5A CN202010205121A CN111307601A CN 111307601 A CN111307601 A CN 111307601A CN 202010205121 A CN202010205121 A CN 202010205121A CN 111307601 A CN111307601 A CN 111307601A
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- Prior art keywords
- plate
- steel bar
- yield strength
- supporting
- testing
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- 230000003014 reinforcing effect Effects 0.000 title description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008054 signal transmission Effects 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- 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
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
-
- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- 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)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a device for testing the yield strength of a steel bar, which comprises a base, a force measuring sensor, a supporting plate, a pressing plate and a force application plate, wherein a first supporting frame and a second supporting frame are welded at the upper part of the base; a fixed table is arranged at the upper part of the base, and a force transducer is arranged on the fixed table; the first support frame with all the bolt fastening has the fagging on the second support frame, and the upside of fagging is provided with the clamp plate rather than mutual correspondence, the removal of clamp plate is realized through the control of screw thread montant. When the force application plate applies yield pressure to the steel bar, the force measurement sensor transmits a signal of the stress on the steel bar to a computer end connected with the sensor, so that the working efficiency is improved while the measurement effect is ensured.
Description
Technical Field
The invention relates to the field of steel bar production, in particular to a device for testing yield strength of a steel bar.
Background
The reinforcing steel bar is steel for reinforced concrete and prestressed reinforced concrete, and the cross section of the reinforcing steel bar is circular or square with round corners. The types of the steel bars include plain round steel bars, ribbed steel bars and twisted steel bars. The reinforcing steel bar is an important structural part and is widely applied to the fields of mechanical production and manufacturing and buildings, so the quality of the reinforcing steel bar directly influences the personal safety of people.
HRB500 is one kind of twisted steel, is called four-grade twisted steel in the past, and is a high-strength steel used on high-rise buildings and super high-rise buildings at present. The operation of detecting the strength of the reinforcing steel bars can only be realized by complex test equipment in a professional laboratory. The cost of test equipment is higher to can only send the reinforcing bar sample to the laboratory and detect, can not lead to more inconvenience at reinforcing bar manufacturing enterprise or reinforcing bar user's direct detection in the place.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a device for testing the yield strength of a steel bar.
In order to achieve the purpose, the invention adopts the following technical scheme:
a testing device for yield strength of a steel bar comprises a base, a force measuring sensor, a supporting plate, a pressing plate and a force application plate, wherein a first supporting frame and a second supporting frame are welded at the upper part of the base, an installation plate is welded between the first supporting frame and the second supporting frame, a hydraulic push cylinder is arranged on the installation plate, and the bottom of the hydraulic push cylinder is connected to the force application plate;
a fixed table is arranged at the upper part of the base, and a force transducer is arranged on the fixed table;
the first support frame with all the bolt fastening has the fagging on the second support frame, and the upside of fagging is provided with the clamp plate rather than mutual correspondence, the removal of clamp plate is realized through the control of screw thread montant.
Preferably, the bottom welding of fagging has the bracing piece, and the bottom welding of bracing piece is in on the base.
Preferably, a connecting frame is fixed at one end of the supporting plate through a bolt, a threaded hole is formed in the connecting frame, a threaded rod is matched with the connecting frame in a spiral rotating mode, and the bottom of the threaded rod is welded on the pressing plate.
Preferably, the vertical section of the connecting frame is
And (4) shape.
Preferably, the upper surfaces of the bracing plate and the load cell are on the same horizontal plane.
Preferably, the model of the load cell is selected to be a load cell having a capacity of less than 200 KN.
The invention has the beneficial effects that:
1. according to the invention, the press plate and the supporting plate which can adjust the positions are mutually matched to fix the positions of the steel bars.
2. According to the force measuring sensor contacted with the steel bar, when the force applying plate applies the yield pressure to the steel bar, the force measuring sensor transmits a signal of force applied to the steel bar to the computer end connected with the sensor, so that the working efficiency is improved while the measuring effect is ensured.
Drawings
Fig. 1 is a schematic front view of a device for testing yield strength of a steel bar according to the present invention;
fig. 2 is a left side view structural diagram of a force application plate and a supporting plate of the device for testing the yield strength of a steel bar provided by the invention;
FIG. 3 is a schematic diagram of a right-view structure of a load cell and a second support frame of the device for testing yield strength of steel bars according to the present invention;
fig. 4 is a left side view structural diagram of a supporting plate and a threaded vertical rod of the device for testing the yield strength of the steel bar provided by the invention.
In the figure: the device comprises a base 1, a force measuring sensor 2, a connecting frame 3, a supporting rod 4, a supporting plate 5, a pressing plate 6, a threaded vertical rod 7, a first supporting frame 8, a mounting plate 9, a hydraulic pushing cylinder 10, a force applying plate 11, a fixing table 12 and a second supporting frame 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example (b): referring to fig. 1-4, a device for testing yield strength of a steel bar comprises a base 1, a force measuring sensor 2, a supporting plate 5, a pressing plate 6 and a force application plate 11, wherein a first supporting frame 8 and a second supporting frame 13 are welded on the upper portion of the base 1, a mounting plate 9 is welded between the first supporting frame 8 and the second supporting frame 13, a hydraulic push cylinder 10 is arranged on the mounting plate 9, and the bottom of the hydraulic push cylinder 10 is connected to the force application plate 11;
wherein, equal bolt fastening has fagging 5 on first support frame 8 and the second support frame 13, and the upside of fagging 5 is provided with the clamp plate 6 rather than mutual correspondence, and the removal of clamp plate 6 is realized through the control of screw thread montant 7, and the bottom welding of fagging 5 has bracing piece 4, and the bottom welding of bracing piece 4 is on base 1, and the one end bolt fastening of fagging 5 has link 3, and the vertical cross-section of link 3 is and is
The shape is that a threaded hole is formed in the connecting frame 3, a threaded rod is matched with the connecting frame in a spiral rotating mode, and the bottom of the threaded rod is welded on the pressing plate 6;
the upper portion of base 1 is provided with fixed station 12, and is provided with load cell 2 on the fixed station 12, and the upper surface of fagging 5 and load cell 2 is on same horizontal plane, and the model of load cell 2 selects for the sensor that load cell capacity is less than 200 KN.
Specifically, a steel bar to be subjected to yield strength test is transversely placed on the supporting plate 5, and the threaded vertical rod 7 is rotated, so that the threaded vertical rod 7 is spirally rotated along a threaded hole in the connecting frame 3, the pressing plate 6 is pushed to move in a downward direction and is contacted with the steel bar, the pressing plate 6 and the supporting plate 5 which can adjust positions are matched with each other, and the position of the steel bar is fixed;
after the position of the steel bar is fixed, the hydraulic push cylinder 10 is controlled to do stretching motion, the force application plate 11 is pushed to move downwards and contact with the steel bar, and then pressure is continuously applied to the steel bar, so that the steel bar is elastically deformed after being applied with pressure;
with force cell sensor 2 of reinforcing bar contact, when application of force board 11 exerted yield pressure to the reinforcing bar, force cell sensor 2 will be to the computer end that the sensor is connected of signal transmission of reinforcing bar atress, and the atress signal converts the computer after the signal of telecommunication into and shows on the computer again, accomplishes the yield strength test to the reinforcing bar, and yield test device simple structure convenient operation and practicality are strong, when guaranteeing measuring effect, have improved work efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A device for testing yield strength of a steel bar comprises a base (1), a force transducer (2), a supporting plate (5), a pressing plate (6) and a force application plate (11), and is characterized in that a first supporting frame (8) and a second supporting frame (13) are welded on the upper portion of the base (1), a mounting plate (9) is welded between the first supporting frame (8) and the second supporting frame (13), a hydraulic push cylinder (10) is arranged on the mounting plate (9), and the bottom of the hydraulic push cylinder (10) is connected to the force application plate (11);
a fixed table (12) is arranged at the upper part of the base (1), and a force measuring sensor (2) is arranged on the fixed table (12);
first support frame (8) with all the bolt fastening has backup pad (5) on second support frame (13), and the upside of backup pad (5) is provided with rather than clamp plate (6) that correspond each other, the removal of clamp plate (6) is realized through screw thread montant (7) control.
2. A device for testing the yield strength of a steel bar according to claim 1, wherein the supporting rod (4) is welded to the bottom of the supporting plate (5), and the bottom of the supporting rod (4) is welded to the base (1).
3. The device for testing the yield strength of the steel bar as claimed in claim 2, wherein one end of the supporting plate (5) is fixed with the connecting frame (3) through a bolt, the connecting frame (3) is provided with a threaded hole, the threaded hole is matched with a threaded rod in a spiral rotating mode, and the bottom of the threaded rod is welded on the pressing plate (6).
4. A device for testing the yield strength of a steel bar according to claim 3, wherein the vertical section of the connecting frame (3) is in the shape of a square
And (4) shape.
5. A device for testing the yield strength of a steel bar according to claim 1, wherein the upper surfaces of the bracing plate (5) and the load cell (2) are on the same horizontal plane.
6. A device for testing the yield strength of a steel reinforcement according to claim 1, characterized in that the load cell (2) is of a type selected to have a load cell capacity of less than 200 KN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205121.5A CN111307601A (en) | 2020-03-21 | 2020-03-21 | HRB500E reinforcing bar yield strength's testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205121.5A CN111307601A (en) | 2020-03-21 | 2020-03-21 | HRB500E reinforcing bar yield strength's testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111307601A true CN111307601A (en) | 2020-06-19 |
Family
ID=71151264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010205121.5A Pending CN111307601A (en) | 2020-03-21 | 2020-03-21 | HRB500E reinforcing bar yield strength's testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111307601A (en) |
-
2020
- 2020-03-21 CN CN202010205121.5A patent/CN111307601A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200619 |