CN104458441A - Anti-bending detection device for reinforcing steel bar - Google Patents
Anti-bending detection device for reinforcing steel bar Download PDFInfo
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- CN104458441A CN104458441A CN201410759512.6A CN201410759512A CN104458441A CN 104458441 A CN104458441 A CN 104458441A CN 201410759512 A CN201410759512 A CN 201410759512A CN 104458441 A CN104458441 A CN 104458441A
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- reinforcing bar
- index dial
- worktable
- steel bar
- reinforcing steel
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Abstract
The invention discloses an anti-bending detection device for a reinforcing steel bar. The device comprises a worktable, wherein two reinforcing steel bar positioning rollers and an index dial are arranged at one end of the worktable; the index dial is arranged between the two reinforcing steel bar positioning rollers and is provided with calibrations; a driving device which is provided with a hydraulic rod is arranged at the other end of the worktable, the hydraulic rod is pointed to the partbetweenthe two reinforcing steel bar positioning rollers and is vertical to the connecting line direction of the two reinforcing steel bar positioning rollers, and a hook for hooking the reinforcing steel bar is arranged at the free end of the hydraulic rod; a position sensor, a force sensor and a controller are further arranged at the other end of the worktable; the controller is connected with the position sensor and the force sensorrespectively, the position sensor is connected with the index dial and the force sensor is connected with the driving device. The anti-bending detection device for the reinforcing steel bar disclosed by the invention is high in test precision, accurate and reliable in test result and good in safety performance and meanwhile is simple and reasonable.
Description
Technical field
The present invention relates to building materials detection field, particularly a kind of reinforcing bar bending resistance pick-up unit.
Background technology
Anti-bending strength is one of leading indicator of steel bar quality, for this reason, detects at some reinforcing bar production units, reinforcing bar applying unit, reinforcing bar the beam test that unit etc. all will carry out reinforcing bar.Existing a kind of reinforcing bar beam test instrument comprises chamber, and the one end in chamber is provided with two reinforcing bar registration rollers, is provided with index dial, index dial has groove between two reinforcing bar registration rollers.The other end in chamber is provided with telescopic drive, and telescopic drive has driving stem, and driving stem is vertical with the line direction of two reinforcing bar registration rollers, and driving stem points between two reinforcing bar registration rollers.During above-mentioned reinforcing bar beam test instrument test, reinforcing bar sample is placed on the side of two reinforcing bar registration rollers towards telescopic drive, open telescopic drive, the end of the driving stem of telescopic drive withstands on reinforcing bar sample, make bar bending arrive certain degree, estimated roughly the anti-bending strength of reinforcing bar sample by the scale size read on index dial.
Above-mentioned reinforcing bar beam test instrument is in process of the test, what adopt is the force way that the end of the driving stem of telescopic drive withstands on reinforcing bar sample, because most reinforcing bar sample is columniform, in the process of top pressing reinforcing sample, easily get off from landing reinforcing bar sample in the top of driving stem, therefore the degree of crook of reinforcing bar sample is difficult to control in operation, often easily makes reinforcing bar sample curved transitions or bending not in place, affect test findings, and security performance reduces greatly.Simultaneously, above-mentioned reinforcing bar beam test instrument is the anti-bending strength drawing reinforcing bar sample by directly reading index dial numerical values recited, due to reinforcing bar sample be bent after the top of its bend be not necessarily in the home position place of index dial, cause reading numerical values to there is error, experimental result out of true.Further, above-mentioned reinforcing bar beam test instrument is not owing to having special power size sniffer, and when reinforcing bar sample bends to certain degree, its stressed size is just by rough estimation, and this just exists larger experimental error, and accuracy is difficult to hold.
Summary of the invention
The object of the present invention is to provide a kind of reinforcing bar bending resistance pick-up unit, easily control the flexibility of reinforcing bar sample in the operation of this reinforcing bar bending resistance pick-up unit, testing result accuracy is reliable.
Technical scheme of the present invention: a kind of reinforcing bar bending resistance pick-up unit, comprise worktable, described worktable one end is provided with two reinforcing bar registration rollers and index dial, described index dial is between two reinforcing bar registration rollers, index dial has groove, the other end of described worktable is provided with drive unit, described drive unit has hydraulic stem, described hydraulic stem points between two reinforcing bar registration rollers, direction is vertical with the line direction of two reinforcing bar registration rollers, the free end of hydraulic stem is provided with the hook for catching on reinforcing bar, the other end of described worktable is also provided with position transducer and force snesor and controller, wherein, controller respectively with described position transducer, force snesor connects, described position transducer is connected with described index dial, described force snesor is connected with described drive unit.
Aforesaid reinforcing bar bending resistance pick-up unit, described index dial is circular or semicircle, and described groove is circular radial direction, and the central point of index dial is positioned on the axis at hydraulic stem place.
Aforesaid reinforcing bar bending resistance pick-up unit, described index dial is positioned at described central point and is provided with projection for limiting reinforcing bar sample displacement.
Compared with prior art, reinforcing bar bending resistance pick-up unit of the present invention arranges hook due to the free end of hydraulic stem, by the mode of tension and compression, reinforcing bar sample is bent, the phenomenon that hydraulic stem gets off from landing reinforcing bar sample would not be occurred, while improving test degree of accuracy, substantially increase security performance.Simultaneously, because the central spot of index dial is on the axis at hydraulic stem place, reinforcing bar sample is by after stretch bending, when the tip contact of bend is to when being positioned at central spot protruding of index dial, position transducer detects this position, controller accessory drive quits work, now force snesor detects pulling force size and is shown by this pulling force, the anti-bending strength of reinforcing bar sample is drawn by the reinforcing bar sample flexibility size proportionate relationship therebetween that pulling force size and index dial show, the experimental data drawn like this is accurate, and test findings accurately and reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of reinforcing bar bending resistance pick-up unit of the present invention;
Fig. 2 is that reinforcing bar sample is by the structural representation after stretch bending.
Being labeled as in accompanying drawing:
1-worktable, 2-reinforcing bar registration roller, 3-drive unit, 4-hydraulic stem, 5-index dial, 6-groove, 7-reinforcing bar, 8-position transducer, 9-force snesor, 10 hooks, 11-is protruding, 12-controller.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.At this, illustrative examples of the present invention and explanation for explaining the present invention, but can not think limitation of the invention.
Embodiment.Reinforcing bar bending resistance pick-up unit, its structural drawing is as shown in Fig. 1 Fig. 2, and wherein, Fig. 1 is the structural representation of reinforcing bar bending resistance pick-up unit of the present invention; Fig. 2 is that reinforcing bar sample is by the structural representation after stretch bending, with reference to Fig. 1 or Fig. 2, this reinforcing bar bending resistance pick-up unit comprises worktable 1, and worktable 1 one end is provided with two reinforcing bar registration rollers 2 and index dial 5, index dial 5, between two reinforcing bar registration rollers 2, index dial 5 has groove 6.
The other end of worktable 1 is provided with drive unit 3, drive unit 3 has hydraulic stem 4, hydraulic stem 4 points between two reinforcing bar registration rollers 2, and direction is vertical with the line direction of two reinforcing bar registration rollers 2, and the free end of hydraulic stem 4 is provided with hook 10, this hook 10 is for catching on reinforcing bar 7, when carrying out reinforcing bar beam test, hook 10 catches on reinforcing bar 7, and drive unit 3 drives hydraulic stem 4 to shrink, reinforcing bar 7 is pulled to buckle, as shown in Figure 2.
In the present embodiment, the other end of worktable 1 is also provided with position transducer 8 and force snesor 9, and wherein, position transducer 8 is connected with index dial 5 and drive unit respectively, and force snesor 9 is connected with drive unit 3.
The other end of worktable 1 is also provided with a controller 12, and this controller 12 is connected with position transducer 8 and force snesor 9 respectively, for the duty of control position sensor 8 and force snesor 9.
In the present embodiment, index dial 5 is circular or semicircle, and groove 6 is circular radial direction, and the central point of index dial 5 is positioned on the axis at hydraulic stem 4 place.Certainly, according to actual conditions, described index dial 5 can also be made into other shape, here will not enumerate.
In order to position transducer 8 accurately can detect the position of reinforcing bar 7, index dial 5 is positioned at described central point and is provided with projection 11 for limiting reinforcing bar sample displacement.
The above-mentioned reinforcing bar bending resistance pick-up unit course of work is such, first reinforcing bar 7 to be measured is placed on two reinforcing bar registration rollers 2, the hook 10 of hydraulic stem is caught on reinforcing bar 7, by the mode of tension and compression, reinforcing bar sample is bent, the phenomenon that the mode that the mode of this tension and compression makes reinforcing bar sample bend there will not be hydraulic stem to get off from landing reinforcing bar sample, not only improve test degree of accuracy, also substantially increase security performance.Now drive unit 3 is started working, hydraulic stem 4 is driven to shrink, reinforcing bar 7 is pulled to buckle, until become curved after the tip contact of bend of reinforcing bar to protruding 11, now position transducer 8 detects this position, controller 12 accessory drive 3 quits work, now force snesor 9 detects pulling force size and is shown by this pulling force, this pulling force is labeled as F, the reinforcing bar sample flexibility now index dial shown is N, the anti-bending strength of reinforcing bar sample is drawn by calculating F and N proportionate relationship therebetween
In sum, reinforcing bar bending resistance pick-up unit of the present invention arranges hook due to the free end of hydraulic stem, by the mode of tension and compression, reinforcing bar sample is bent, the phenomenon that hydraulic stem gets off from landing reinforcing bar sample would not be occurred, while improving test degree of accuracy, substantially increase security performance.Simultaneously, because the central spot of index dial is on the axis at hydraulic stem place, reinforcing bar sample is by after stretch bending, when the tip contact of bend is to when being positioned at central spot protruding of index dial, position transducer detects this position, controller accessory drive quits work, now force snesor detects pulling force size and is shown by this pulling force, the anti-bending strength of reinforcing bar sample is drawn by the reinforcing bar sample flexibility size proportionate relationship therebetween that pulling force size and index dial show, draw accurate experimental data, test findings accurately and reliably.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a reinforcing bar bending resistance pick-up unit, it is characterized in that, comprise worktable (1), described worktable (1) one end is provided with two reinforcing bar registration rollers (2) and index dial (5), described index dial (5) is positioned between two reinforcing bar registration rollers (2), index dial (5) has groove (6), the other end of described worktable (1) is provided with drive unit (3), described drive unit (3) has hydraulic stem (4), described hydraulic stem (4) points between two reinforcing bar registration rollers (2), direction is vertical with the line direction of two reinforcing bar registration rollers (2), the free end of hydraulic stem (4) is provided with the hook (10) for catching on reinforcing bar (7), the other end of described worktable (1) is also provided with position transducer (8) and force snesor (9) and controller (12), wherein, controller (12) respectively with described position transducer (8), force snesor (9) connects, described position transducer (8) is connected with described index dial (5), described force snesor (9) is connected with described drive unit (3).
2. according to the reinforcing bar bending resistance pick-up unit described in claim 1, it is characterized in that, described index dial (5) is circular or semicircle, and described groove (6) is circular radial direction, and the central point of index dial (5) is positioned on the axis at hydraulic stem (4) place.
3. reinforcing bar bending resistance pick-up unit according to claim 1 and 2, is characterized in that, described index dial (5) is positioned at described central point and is provided with projection (11) for limiting reinforcing bar sample displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759512.6A CN104458441A (en) | 2014-12-12 | 2014-12-12 | Anti-bending detection device for reinforcing steel bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759512.6A CN104458441A (en) | 2014-12-12 | 2014-12-12 | Anti-bending detection device for reinforcing steel bar |
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| CN104458441A true CN104458441A (en) | 2015-03-25 |
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| CN201410759512.6A Pending CN104458441A (en) | 2014-12-12 | 2014-12-12 | Anti-bending detection device for reinforcing steel bar |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769406A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of reinforcing steel bar bending tester |
| CN108548773A (en) * | 2018-03-30 | 2018-09-18 | 河海大学 | Detect the auxiliary device and its application method of reinforcing bar stainless property under by curved state |
| CN110553926A (en) * | 2019-09-16 | 2019-12-10 | 哈尔滨工业大学 | Bending creep testing device of fiber reinforced composite rod |
| CN115078124A (en) * | 2022-07-22 | 2022-09-20 | 安徽建筑大学 | Reinforcing bar bending resistance detection device |
| CN117589595A (en) * | 2024-01-19 | 2024-02-23 | 资阳建工建筑有限公司 | Building engineering reinforcing bar intensity detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769406A (en) * | 2016-12-14 | 2017-05-31 | 四川德胜集团钒钛有限公司 | A kind of reinforcing steel bar bending tester |
| CN108548773A (en) * | 2018-03-30 | 2018-09-18 | 河海大学 | Detect the auxiliary device and its application method of reinforcing bar stainless property under by curved state |
| CN110553926A (en) * | 2019-09-16 | 2019-12-10 | 哈尔滨工业大学 | Bending creep testing device of fiber reinforced composite rod |
| CN115078124A (en) * | 2022-07-22 | 2022-09-20 | 安徽建筑大学 | Reinforcing bar bending resistance detection device |
| CN115078124B (en) * | 2022-07-22 | 2023-01-10 | 安徽建筑大学 | Reinforcing bar bending resistance detection device |
| CN117589595A (en) * | 2024-01-19 | 2024-02-23 | 资阳建工建筑有限公司 | Building engineering reinforcing bar intensity detector |
| CN117589595B (en) * | 2024-01-19 | 2024-03-19 | 资阳建工建筑有限公司 | Building engineering reinforcing bar intensity detector |
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Application publication date: 20150325 |
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