CN105486262A - Method for detecting slippage of bolted plate - Google Patents
Method for detecting slippage of bolted plate Download PDFInfo
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- CN105486262A CN105486262A CN201510844284.7A CN201510844284A CN105486262A CN 105486262 A CN105486262 A CN 105486262A CN 201510844284 A CN201510844284 A CN 201510844284A CN 105486262 A CN105486262 A CN 105486262A
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- module
- pinplate
- slippage
- chip microcomputer
- slide block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The method for detecting slippage of a bolted plate comprises the following steps: a slippage detection device is fixed to the bolted plate; the bolted plate is fixed to a clamp II; a testing machine is started, and force is applied to the two ends of the bolted plate; when friction force between core plates reaches the largest static friction force, slippage occurs, and meanwhile, a slide module slides therewith to enable a displacement sensor module to detect a displacement signal immediately, and the slide module drives a probe piece; signals are converted into digital signals after being transmitted to a signal conversion device; then, the signals are transmitted to a single-chip microcomputer in the signal conversion device, and the single-chip microcomputer transmits the digital signals to a single-chip microcomputer in an automatic control device, and the single-chip microcomputer transmits the digital signals to a control module; the control module sends an instruction to the testing machine; and the testing machine stops applying force immediately, and test data is recorded. The method can detect slippage of the bolted plate in real time conveniently, is high in detection precision, fast in speed and high in reliability, and provides theoretical foundation for predicating safety performance of the bolted plate.
Description
Technical field
The present invention relates to gauge check technical field, be specifically related to a kind of method detecting pinplate slippage.
Background technology
High-strength bolt pinplate has and connects the features such as tight, stressed good, endurance, replaceable, installation be simple, therefore, is widely used in industry with the engineering structure such as covil construction, bridge construction.Because pinplate in use can be subject to extraneous pulling force, it can produce slippage relative to fixed head, thus the shearing force that the bolt that can be applied to gim peg fishplate bar is huge, bolt clippers can be cut off when shearing force arrives certain degree, thus cause the fixed sturcture between pinplate and fixed head to be destroyed, and then cause the generation of accident.At present, for the research about pinplate slippage, the subjective judgement of what the judgement of its result of study mainly relied on is experimenter, see testing machine back stitching as experimenter or hear " bang " a sound time, judge that pinplate there occurs slippage, but inevitably there is error in this detection method judged artificially, or even erroneous judgement.Therefore, seek a kind of method detecting pinplate more accurately, more scrupulously and there is great meaning.
Summary of the invention
The object of the present invention is to provide a kind of method detecting pinplate slippage, the method can detect pinplate fast and accurately and whether slippage occur when being subject to external force, thus for predicting that the security performance of pinplate provides theoretical foundation.
For achieving the above object, the method for this detection pinplate slippage, comprises the following steps:
A. be fixed on pinplate by slippage detecting device by fixture I, described pinplate is bolted by two pieces of central layers and two blocks of side plates to form; In the gap simultaneously making two panels probe tile extend between two pieces of central layers, because the gap between two pieces of central layers is less, now, the spring in displacement sensor module is in compressive state, and two panels probe tile is close on the adjacent two side of central layer due to the effect of the elastic restoring force of spring respectively;
B. pinplate is fixed on the fixture II on testing machine, and the two ends of pinplate are clamped;
C. starting characteristics test machine, start to apply pulling force to the two ends of pinplate, along with the increase of pulling force, friction force between central layer and side plate increases, when reaching maximum static friction force, and central layer generation slippage, now, under the elastic restoring force effect of spring, spring elongates also promotes slide block module and moves, and displacement sensor module detects displacement signal at once; Probe tile moves along with the movement of slide block module and continues to be close on the adjacent two side of central layer;
D. displacement sensor module passes through the data line outputting analog signal of its end in chromacoder, simulating signal is converted to digital signal by the high-precision adc data collecting card in chromacoder, and digital signal is transferred in the single-chip microcomputer in chromacoder again;
E. above-mentioned single-chip microcomputer can by digital data transmission on the single-chip microcomputer in automaton, this single-chip microcomputer again by digital data transmission to control module, control module sends instruction to testing machine, and testing machine stops force immediately, recording detection data.
Preferably, described slide block module is split-type structural, comprises slide block upper module and slide block lower module, together with described slide block upper module is bolted on slide block lower module.
Preferably, the model of described single-chip microcomputer is STM32, and the model of described high-precision adc data collecting card is ADS1256.
Compared with prior art, the present invention can detect the pinplate slippage of not easily measuring easily in real time, and by ADC signal converter, in real time the simulating signal of displacement sensor module is converted to digital signal, such that testing result precision is high, speed is fast, reliability is high; When pinplate occurs to slide, the present invention can make testing machine stop force immediately, recording detection data automatically, thus for predicting that the security performance of pinplate provides theoretical foundation, ensure life and the property safety of the people, there is good promotional value and social value.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of slippage detecting device in the present invention;
Fig. 2 is the structural representation of displacement sensor module in the present invention;
Fig. 3 is the structural representation of slide block upper module in the present invention;
Fig. 4 is the structural representation of slide block lower module in the present invention;
Fig. 5 is the structural representation of pinplate in the present invention;
Fig. 6 is working state schematic representation of the present invention;
Fig. 7 is the enlarged diagram that the present invention is arranged on pinplate;
In figure: 1, slippage detecting device, 2, chromacoder, 3, automaton, 4, probe module, 4-1 probe tile, 5, displacement sensor module, 5-1, jump ring, 5-2, spring, 5-3, contact circuit pipe, 5-4, guide rod, 6, slide block module, 7, rail module, 7-1, guide rail, 7-2, guide rail holder, 8, casing, 9, testing machine, 10, pinplate, 10-1, central layer, 10-2, side plate, 10-3, bolt, 11, fixture I, 12, fixture II.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 5 to Fig. 7, a kind of method detecting pinplate slippage, comprises the following steps:
A. be fixed on pinplate 10 by slippage detecting device 1 by fixture I 11, described pinplate 10 is formed by connecting by bolt 10-3 by two pieces of central layer 10-1 and two piece side plate 10-2; In the gap simultaneously making two panels probe tile 4-1 extend between two pieces of central layer 10-1, because the gap between two pieces of central layer 10-1 is less, now, spring 5-2 in displacement sensor module 5 is in compressive state, and two panels probe tile 4-1 is close on the adjacent two side of central layer 10-1 due to the effect of the elastic restoring force of spring 5-2 respectively;
B. pinplate 10 is fixed on the fixture II 12 on testing machine 9, and the two ends of pinplate 10 are clamped;
C. starting characteristics test machine 9, start to apply pulling force to the two ends of pinplate 10, along with the increase of pulling force, friction force between central layer 10-1 and side plate 10-2 increases, and when reaching maximum static friction force, slippage occurs central layer 10-1, now, under the elastic restoring force effect of spring 5-2, spring 5-2 extends and promotes slide block module 6 and moves, and displacement sensor module 5 detects displacement signal at once; Probe tile 4-1 moves along with the movement of slide block module 6 and continues to be close on the adjacent two side of central layer 10-1, thus stops spring 5-2 to extend further;
D. displacement sensor module 5 by the data line outputting analog signal of its end in chromacoder 2, simulating signal is converted to digital signal by the high-precision adc data collecting card in chromacoder 2, and digital signal is transferred in the single-chip microcomputer in chromacoder 2 again;
E. above-mentioned single-chip microcomputer can by digital data transmission on the single-chip microcomputer in automaton 3, this single-chip microcomputer again by digital data transmission to control module, control module sends instruction to testing machine 9, and testing machine 9 stops force immediately, recording detection data.
As shown in Fig. 1, Fig. 3, Fig. 4, in order to mount and dismount slide block module 6 more easily and make slide block module 6 fixed displacement sensor assembly 5 more easily, described slide block module 6 is split-type structural, comprise slide block upper module and slide block lower module, together with described slide block upper module is bolted on slide block lower module.
Better transmit data performance to obtain and reduce costs, the model of described single-chip microcomputer is STM32; In order to obtain better data transfer speeds, the model of described high-precision adc data collecting card is ADS1256.
As shown in Figures 1 to 4, the method of this detection pinplate slippage the detection system that is suitable for comprise slippage detecting device 1, chromacoder 2 and automaton 3, one end of described chromacoder 2 is connected with slippage detecting device 1, and the other end is connected with automaton 3; Described automaton 3 can control the size of testing machine 9 pairs of pinplate 10 acting forces;
The casing 8 that described slippage detecting device 1 comprises probe module 4, displacement sensor module 5, two pieces of slide block modules 6, rail module 7 and base plates are provided with through hole; Described probe module 4 is fixed on the lower end of slide block module 6 and passes perpendicularly through the base plate of casing 8; Described probe module 4 comprises at least two elongated high rigidity probe tile 4-1, cross-shaped arrangement between described probe tile 4-1;
Institute's displacement sensor modules 5 comprises jump ring 5-1, spring 5-2, contact circuit pipe 5-3 and guide rod 5-4, and described jump ring 5-1 is arranged on the two ends of guide rod 5-4; Described spring 5-2 is enclosed within guide rod 5-4, and the two ends of described spring 5-2 are separately fixed on jump ring 5-1; Described contact circuit pipe 5-3 one end is connected with guide rod 5-4, and the other end is connected with chromacoder 2;
Described slide block module 6 is provided with the hole that guide rod 5-4 and guide rail 7-1 is passed, described slide block module 6 is provided with the external diameter that the bore dia that guide rod 5-4 is passed is less than jump ring 5-1, described slide block module 6 is separately positioned on the two ends of guide rod 5-4, displacement sensor module 5 is used for be arranged on slippage detecting device 1 on the one hand, on the other hand because probe tile 4-1 moves with slide block module 6 and mobile, thus the axially-movable of spring 5-2 can be stoped further, when there is slippage in central layer 10-1, the distance of slippage is consistent with the distance that spring 5-2 extends, thus the slippage of central layer 10-1 accurately can be detected, described rail module 7 comprises guide rail 7-1 and guide rail holder 7-2, and described guide rail 7-1 runs through two pieces of slide block modules 6 and is fixed between guide rail holder 7-2, and guide rail 7-1 can control slide-action die block 6 and slide in same level, described guide rail holder 7-2 is fixed on casing 8,
Described chromacoder 2 comprises signal conversion module, and described signal conversion module comprises single-chip microcomputer and coupled high-precision adc data collecting card; Described high-precision adc data collecting card is transferred on single-chip microcomputer after the simulating signal that displacement sensor module 5 collects can being converted to digital signal;
Described automaton 3 comprises single-chip microcomputer and control module, and described control module is connected with testing machine 9 with single-chip microcomputer respectively.
Claims (3)
1. detect a method for pinplate slippage, it is characterized in that, comprise the following steps:
A. be fixed on pinplate (10) by slippage detecting device (1) by fixture I (11), described pinplate (10) is formed by connecting by bolt (10-3) by two pieces of central layers (10-1) and two pieces of side plates (10-2); In the gap simultaneously making two panels probe tile (4-1) extend between two pieces of central layers (10-1), because the gap between two pieces of central layers (10-1) is less, now, spring (5-2) in displacement sensor module (5) is in compressive state, and two panels probe tile (4-1) is close on the adjacent two side of central layer (10-1) due to the effect of the elastic restoring force of spring (5-2) respectively;
B. pinplate (10) is fixed on the fixture II (12) on testing machine (9), and the two ends of pinplate (10) are clamped;
C. starting characteristics test machine (9), start to apply pulling force to the two ends of pinplate (10), along with the increase of pulling force, friction force between central layer (10-1) and side plate (10-2) increases, when reaching maximum static friction force, there is slippage in central layer (10-1), now, under the elastic restoring force effect of spring (5-2), spring (5-2) extends and promotes slide block module (6) and moves, and displacement sensor module (5) detects displacement signal at once; Probe tile (4-1) moves along with the movement of slide block module (6) and continues to be close on the adjacent two side of central layer (10-1);
D. displacement sensor module (5) by the data line outputting analog signal of its end in chromacoder (2), simulating signal is converted to digital signal by the high-precision adc data collecting card in chromacoder (2), and digital signal is transferred in the single-chip microcomputer in chromacoder (2) again;
E. above-mentioned single-chip microcomputer can by digital data transmission on the single-chip microcomputer in automaton (3), this single-chip microcomputer again by digital data transmission to control module, control module sends instruction to testing machine (9), testing machine (9) stops force immediately, recording detection data.
2. a kind of method detecting pinplate slippage according to claim 1, it is characterized in that, described slide block module (6) is split-type structural, comprises slide block upper module and slide block lower module, together with described slide block upper module is bolted on slide block lower module.
3. a kind of method detecting pinplate slippage according to claim 1 and 2, it is characterized in that, the model of described single-chip microcomputer is STM32, and the model of described high-precision adc data collecting card is ADS1256.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844284.7A CN105486262B (en) | 2015-11-26 | 2015-11-26 | A kind of method for detecting pinplate sliding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844284.7A CN105486262B (en) | 2015-11-26 | 2015-11-26 | A kind of method for detecting pinplate sliding |
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| CN105486262A true CN105486262A (en) | 2016-04-13 |
| CN105486262B CN105486262B (en) | 2017-12-08 |
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| CN201510844284.7A Active CN105486262B (en) | 2015-11-26 | 2015-11-26 | A kind of method for detecting pinplate sliding |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891737A (en) * | 1994-09-26 | 1996-04-09 | Mitsubishi Denki Bill Techno Service Kk | Guide rail center deflection measuring jig and replacement of guide shoe |
| CN201527350U (en) * | 2009-11-10 | 2010-07-14 | 徐州市产品质量监督检验所 | Detector for slippage resistance testing of bolted plate |
| CN202175483U (en) * | 2011-06-23 | 2012-03-28 | 上海永大电梯设备有限公司 | Novel slippage detecting device |
| CN202676579U (en) * | 2012-07-20 | 2013-01-16 | 临沂市建设安全工程质量监督管理处 | Automatic clamping device of bolting plate anti-sliding test |
| CN204439519U (en) * | 2015-03-24 | 2015-07-01 | 葛洲坝集团试验检测有限公司 | The fastener that a kind of high strength exploitation rubbing surface resistant slide detects |
-
2015
- 2015-11-26 CN CN201510844284.7A patent/CN105486262B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891737A (en) * | 1994-09-26 | 1996-04-09 | Mitsubishi Denki Bill Techno Service Kk | Guide rail center deflection measuring jig and replacement of guide shoe |
| CN201527350U (en) * | 2009-11-10 | 2010-07-14 | 徐州市产品质量监督检验所 | Detector for slippage resistance testing of bolted plate |
| CN202175483U (en) * | 2011-06-23 | 2012-03-28 | 上海永大电梯设备有限公司 | Novel slippage detecting device |
| CN202676579U (en) * | 2012-07-20 | 2013-01-16 | 临沂市建设安全工程质量监督管理处 | Automatic clamping device of bolting plate anti-sliding test |
| CN204439519U (en) * | 2015-03-24 | 2015-07-01 | 葛洲坝集团试验检测有限公司 | The fastener that a kind of high strength exploitation rubbing surface resistant slide detects |
Non-Patent Citations (1)
| Title |
|---|
| 康杰 等: "用力传感器测量摩擦型高强螺栓的抗滑移系数", 《昆明理工大学学报（理工版）》 * |
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Inventor after: Wang Yong Inventor after: Ma Xiliang Inventor after: Xie Dong Inventor after: Zhou Yu Inventor after: Tian Peng Inventor after: Qiao Zhi Inventor after: Xu Wei Inventor after: Wu Wenhui Inventor after: Xu Hao Inventor before: Ma Xiliang Inventor before: Wang Yong Inventor before: Xie Dong Inventor before: Qiao Zhi Inventor before: Xu Wei Inventor before: Zhou Yu Inventor before: Wu Wenhui Inventor before: Xu Hao |
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