CN105136345A - Hand-held stress detector and detection method - Google Patents
Hand-held stress detector and detection method Download PDFInfo
- Publication number
- CN105136345A CN105136345A CN201510518005.8A CN201510518005A CN105136345A CN 105136345 A CN105136345 A CN 105136345A CN 201510518005 A CN201510518005 A CN 201510518005A CN 105136345 A CN105136345 A CN 105136345A
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- Prior art keywords
- stress mornitoring
- hand
- component
- foil gauge
- stress
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Abstract
The invention discloses a hand-held stress detector and a detection method. The hand-held stress detector consists of a pressurization device, a stress detection member, a data processing device, a early warning device, a semi-closed housing and a power supply device; the pressurization device utilizes a motor to drive a piston push rod to push a piston block to provide a hydraulic high pressure, enables a strain gag in the stress detection member to be in cooperation with deformation of a structure zone to be detected to obtain a corresponding simulation signal, and obtains a strain value of the zone to be detected through the data processing device. The early warning device displays the obtained strain value and produces alarms if the strain value exceeds a threshold value set by the system. The hand-held stress detector disclosed by the invention realizes efficient fast detection of stress/strain, saves usage of the strain, and greatly improves the efficiency of the structure daily detection and maintenance.
Description
Technical field
The present invention relates to stress mornitoring equipment technical field, be specifically related to a kind of hand-held tension gauge and detection method thereof.
Background technology
In use, because load action can produce distortion, component inside stress can further develop structural member.Use for many years after, for ensure safety in production or in order to solution structure safety, the degree of reliability, often need being out of shape and stress mornitoring with structural elements, main Detection of content is the stress monitoring of key position, the deformation monitoring etc. of key position.
Along with developing rapidly of domestic construction industry, buildings, especially the routine testing of important building more and more comes into one's own with safeguarding.Current existing structural stress detection method has certain limitation, and as equipment is valuable, test period is long, needs to use a large amount of foil gauge, and range of application is narrow.Therefore develop economy, efficiently structural damage investigation equipment and there is very real engineering significance.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of hand-held tension gauge and detection method thereof, it needs to use a large amount of foil gauges for current structure detection method, test period is long and propose, above-mentioned deficiency can be overcome while guarantee accuracy of detection, substantially increase building structure inspection efficiency and the range of stress.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of hand-held stress mornitoring instrument, comprises semiclosed shell, pressue device, data processing equipment, prior-warning device, electric supply installation and stress mornitoring component; Described semiclosed shell is gun shaped, and pressue device, stress mornitoring component and semiclosed shell the first half are coaxially arranged; The control system of pressue device is connected with the switch structure be arranged on semiclosed shell by data line, and data processing equipment and prior-warning device are arranged on semiclosed shell the latter half, and are connected by data line; Described electric supply installation comprises battery pack and AC power; Described pressue device comprises piston block, piston rod, motor, chamber, driving-belt, and described piston rod one end and piston block form integral rigidity and be connected, and the other end is connected with motor by driving-belt, and motor is connected with electric supply installation by electric wire; Piston block and chamber inner wall fit tightly, and are marked with hydraulic oil in chamber; Described stress mornitoring component is fixed on semiclosed case nose, and stress mornitoring component comprises foil gauge, rubber sheet gasket and rubber ring; Foil gauge is bonded and fixed on rubber sheet gasket, the outer rim of rubber ring banding rubber sheet gasket, and rubber sheet gasket is connected with the opening end of semiclosed shell is airtight by rubber ring; Foil gauge is connected with data processing equipment by data line; Described data processing equipment comprises data collector and microprocessor; Described prior-warning device is connected with microprocessor, and prior-warning device comprises display screen, warning lamp and jingle bell.
Described chamber outer wall is provided with oil hole, and oil hole, by rubber plug jam-pack, can change the hydraulic oil in chamber by oil hole.Described microprocessor is arm embedded microprocessor.
Apply the method that hand-held stress mornitoring instrument carries out stress mornitoring, comprise the steps:
Step one, carries out pre-service to the surface of detected structural member;
Step 2, is adjacent on the surface of detected structural member by the foil gauge of hand-held stress mornitoring instrument, the test frequency of setting hand-held stress mornitoring instrument, sensitivity, alarm threshold value parameter, and debugging all parts is until the signal stabilization of detecting instrument reception is correct;
Step 3, presses the switch be arranged on semiclosed shell, opens motor, drives piston rod to promote piston block in chamber indoor sport, apply pressure, be pressed on by stress mornitoring component on the surface of detected structural member to hydraulic oil by travelling belt;
Step 4, measures the stress/strain value of detected structural member, store survey data, and to be shown by display screen, complete every testing; Make the foil gauge in stress mornitoring component and structural region to be measured be out of shape deformation to coordinate mutually, thus obtain corresponding simulating signal, the simulating signal that foil gauge transmits by data collector is converted to digital signal, and transmits this digital signal to microprocessor, and shows on a display screen;
Step 5, detects complete, stops motor by switch.
Compared with prior art, the invention has the beneficial effects as follows:
1, easy and simple to handle, need not paste foil gauge, test speed is fast.
2, foil gauge can repeatedly use, and reduces expenses; Applied widely, the stress/strain that can be applicable to various structure detects.
3, meet structure detection accuracy requirement, and promptly can give testing result; Staff's structural stress can be reminded in time whether to meet the demands.
4, the design of hand-held is more adapted to operating personnel's use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is stress mornitoring component schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
The present invention includes stress mornitoring component 1, oil hole 2, push rod 3, motor 4, semiclosed shell 5, chamber 6, piston 7, electric supply installation 8, prior-warning device 9, alarm 10, data processing equipment 11, foil gauge 12, rubber ring 13, rubber sheet gasket 14 and switch 15.
As shown in Figure 1, 2, this hand-held stress mornitoring instrument comprises pressue device, stress mornitoring component, data processing equipment, prior-warning device, semiclosed shell, electric supply installation.
Described pressue device comprises piston block 7, piston rod 3, motor 4, chamber 6, oil hole 2, driving-belt, hydraulic oil.Piston rod 3 one end forms integral rigidity with piston block 7 and is connected, and the other end is connected with motor 4 by driving-belt.Piston block 7 and chamber 6 inwall fit tightly, and make chamber form confined space; Chamber outer wall has an oil hole 2, and oil hole 2 is by rubber plug jam-pack, and be marked with a certain amount of hydraulic oil in chamber 6, hydraulic oil can be changed by oil hole 2; Described motor is connected with electric supply installation 8 by electric wire.Namely press motor switch drives piston rod to promote piston block in chamber indoor sport by travelling belt, applies pressure, be pressed on test specimen by stress mornitoring component to hydraulic oil.
Described stress mornitoring component 1 is fixed on semiclosed shell 5 front end, and described stress mornitoring component 1 comprises foil gauge 12, rubber sheet gasket 14 and rubber ring 13; Foil gauge 12 is bonded and fixed on rubber sheet gasket 14, the outer rim of rubber ring 13 banding rubber sheet gasket 14, and rubber sheet gasket 14 is connected with the opening end of semiclosed shell is airtight by rubber ring 13; In addition, foil gauge 12 is connected with data line, and data line is connected with data processing equipment 11 by the hole on semiclosed shell, is tightly connected between data line and hole.
Described semiclosed shell 5 is gun shaped structure; Described pressue device, stress mornitoring component and semiclosed shell the first half are coaxially arranged; The control system of pressue device is connected by the switching member of circuit with semiclosed shell 5 the latter half, and data processing equipment and prior-warning device are arranged on semiclosed shell the latter half, and are connected by data line.
Described data processing equipment comprises data collector, arm9 embedded microprocessor; The simulating signal that foil gauge transmits by described data collector is converted to digital signal, and transmits this digital signal to arm9 embedding microprocessor; Described arm9 microprocessor has database and software systems.The data obtained by data collector can obtain the corresponding strain value of test specimen after software systems process, and the strain value data of gained can store in a database.
Described prior-warning device 10 is connected with arm9 microprocessor, belongs to its peripherals, comprises display screen, warning lamp and jingle bell.Described prior-warning device 10 directly can show processing by data processing equipment 11 strain value obtained on a display screen, and prior-warning device 10 can arrange alarm threshold value, if survey strain and exceed this value and can triggered alarm and jingle bell report to the police.
Described electric supply installation 8 comprises battery pack and AC power, and AC power can be charge in batteries and powers for instrument, when extraneous interrupt suddenly without power supply or extraneous power supply time, accumulator can be instrument and provides power supply, ensures that instrument normally works.
Detection method of the present invention comprises the steps:
Step one, carries out pre-service to the surface of detected structural member;
Step 2, the foil gauge 12 of hand-held stress mornitoring instrument is adjacent on the surface of detected structural member, the test frequency of setting hand-held stress mornitoring instrument, sensitivity, alarm threshold value parameter, debugging all parts is until the signal stabilization of detecting instrument reception is correct;
Step 3, presses the switch be arranged on semiclosed shell 5, opens motor 4, drives piston rod 3 to promote piston block 7 move in chamber 6, apply pressure, be pressed on by stress mornitoring component on the surface of detected structural member to hydraulic oil by travelling belt;
Step 4, measures the stress/strain value of detected structural member, store survey data, and to be shown by display screen, complete every testing; Make the foil gauge in stress mornitoring component and structural region to be measured be out of shape deformation to coordinate mutually, thus obtain corresponding simulating signal, the simulating signal that foil gauge transmits by data collector 11 is converted to digital signal, and transmits this digital signal to microprocessor, and shows on a display screen;
Step 5, detects complete, stops motor 4 by switch.
The present invention utilizes motor 4 to drive piston push rod 3 to promote piston block 7 and provides hydraulic high-pressure, make the foil gauge 12 in stress mornitoring component 1 and structural region to be measured be out of shape deformation to coordinate mutually, thus obtain corresponding simulating signal, and obtain the strain numerical value in region to be measured by data processing equipment.Easy and simple to handle, foil gauge need not be pasted, test speed is fast, foil gauge can repeatedly use, and reduces expenses, applied widely, the stress/strain that can be applicable to various structure detects, meet structure detection accuracy requirement, and promptly can give testing result, substantially increase building structure inspection efficiency and the range of stress.
The undeclared part related in the present invention is same as the prior art or adopt prior art to be realized.
Claims (5)
1. a hand-held stress mornitoring instrument, is characterized in that, comprises semiclosed shell, pressue device, data processing equipment, prior-warning device, electric supply installation and stress mornitoring component;
Described semiclosed shell is gun shaped, and pressue device, stress mornitoring component and semiclosed shell the first half are coaxially arranged; The control system of pressue device is connected with the switch structure be arranged on semiclosed shell by data line, and data processing equipment and prior-warning device are arranged on semiclosed shell the latter half, and are connected by data line;
Described electric supply installation comprises battery pack and AC power;
Described pressue device comprises piston block, piston rod, motor, chamber, driving-belt, and described piston rod one end and piston block form integral rigidity and be connected, and the other end is connected with motor by driving-belt, and motor is connected with electric supply installation by electric wire; Piston block and chamber inner wall fit tightly, and are marked with hydraulic oil in chamber;
Described stress mornitoring component is fixed on semiclosed case nose, and stress mornitoring component comprises foil gauge, rubber sheet gasket and rubber ring; Foil gauge is bonded and fixed on rubber sheet gasket, the outer rim of rubber ring banding rubber sheet gasket, and rubber sheet gasket is connected with the opening end of semiclosed shell is airtight by rubber ring; Foil gauge is connected with data processing equipment by data line;
Described data processing equipment comprises data collector and microprocessor;
Described prior-warning device is connected with microprocessor, and prior-warning device comprises display screen, warning lamp and jingle bell.
2. a kind of hand-held stress mornitoring instrument according to claim, it is characterized in that, described chamber outer wall is provided with oil hole, and oil hole, by rubber plug jam-pack, can change the hydraulic oil in chamber by oil hole.
3. a kind of hand-held stress mornitoring instrument according to claim, it is characterized in that, described microprocessor is arm embedded microprocessor.
4. a stress mornitoring method, is characterized in that, utilizes hand-held stress mornitoring instrument to detect, and described hand-held stress mornitoring instrument comprises semiclosed shell, pressue device, data processing equipment, prior-warning device, electric supply installation and stress mornitoring component;
Stress mornitoring component and semiclosed shell the first half coaxially arranged; The control system of pressue device is connected with the switch be arranged on semiclosed shell by data line, and data processing equipment and prior-warning device are arranged on semiclosed shell the latter half, and are connected by data line;
Described electric supply installation comprises battery pack and AC power;
Described pressue device comprises piston block, piston rod, motor, chamber, driving-belt, and described piston rod one end and piston block form integral rigidity and be connected, and the other end is connected with motor by driving-belt, and motor is connected with electric supply installation by electric wire; Piston block and chamber inner wall fit tightly, and are marked with hydraulic oil in chamber;
Described stress mornitoring component is fixed on semiclosed case nose, and stress mornitoring component comprises foil gauge, rubber sheet gasket and rubber ring; Foil gauge is bonded and fixed on rubber sheet gasket, the outer rim of rubber ring banding rubber sheet gasket, and rubber sheet gasket is connected with the opening end of semiclosed shell is airtight by rubber ring; Foil gauge is connected with data processing equipment by data line;
Described data processing equipment comprises data collector and microprocessor;
Detection method comprises the steps:
Step one, carries out pre-service to the surface of detected structural member;
Step 2, is adjacent on the surface of detected structural member by the foil gauge of hand-held stress mornitoring instrument, the test frequency of setting hand-held stress mornitoring instrument, sensitivity, alarm threshold value parameter, and debugging all parts is until the signal stabilization of detecting instrument reception is correct;
Step 3, presses the switch be arranged on semiclosed shell, opens motor, drives piston rod to promote piston block in chamber indoor sport, apply pressure, be pressed on by stress mornitoring component on the surface of detected structural member to hydraulic oil by travelling belt;
Step 4, measures the ess-strain value of detected structural member, store survey data, and to be shown by display screen, complete every testing; Make the foil gauge in stress mornitoring component and structural region to be measured be out of shape deformation to coordinate mutually, thus obtain corresponding simulating signal, the simulating signal that foil gauge transmits by data collector is converted to digital signal, and transmits this digital signal to microprocessor, and shows on a display screen;
Step 5, detects complete, stops motor by switch.
5. stress mornitoring method according to claim 4, is characterized in that, described semiclosed shell is gun shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518005.8A CN105136345A (en) | 2015-08-21 | 2015-08-21 | Hand-held stress detector and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518005.8A CN105136345A (en) | 2015-08-21 | 2015-08-21 | Hand-held stress detector and detection method |
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| Publication Number | Publication Date |
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| CN105136345A true CN105136345A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510518005.8A Withdrawn CN105136345A (en) | 2015-08-21 | 2015-08-21 | Hand-held stress detector and detection method |
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| CN (1) | CN105136345A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378044Y (en) * | 2009-04-02 | 2010-01-06 | 河海大学 | Horizontal displacement monitor |
| US20100077867A1 (en) * | 2008-09-30 | 2010-04-01 | Gm Global Technology Operations, Inc. | Phalange tactile load cell |
| CN102435405A (en) * | 2011-11-29 | 2012-05-02 | 河海大学 | Specimen stress testing method and stress stethoscope thereof |
| CN102549376A (en) * | 2009-08-17 | 2012-07-04 | 欧洲宇航防务集团Eads法国公司 | Strain gauge, and system for spatially locating such gauges |
| CN103743501A (en) * | 2014-01-17 | 2014-04-23 | 新疆大学 | Portable pneumatic pulse ground stress in-situ tester |
| CN203758657U (en) * | 2014-02-28 | 2014-08-06 | 西安微纳传感器研究所有限公司 | Dynamometer |
-
2015
- 2015-08-21 CN CN201510518005.8A patent/CN105136345A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100077867A1 (en) * | 2008-09-30 | 2010-04-01 | Gm Global Technology Operations, Inc. | Phalange tactile load cell |
| CN201378044Y (en) * | 2009-04-02 | 2010-01-06 | 河海大学 | Horizontal displacement monitor |
| CN102549376A (en) * | 2009-08-17 | 2012-07-04 | 欧洲宇航防务集团Eads法国公司 | Strain gauge, and system for spatially locating such gauges |
| CN102435405A (en) * | 2011-11-29 | 2012-05-02 | 河海大学 | Specimen stress testing method and stress stethoscope thereof |
| CN103743501A (en) * | 2014-01-17 | 2014-04-23 | 新疆大学 | Portable pneumatic pulse ground stress in-situ tester |
| CN203758657U (en) * | 2014-02-28 | 2014-08-06 | 西安微纳传感器研究所有限公司 | Dynamometer |
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Application publication date: 20151209 |