CN102072839A - Firefighting fusible alloy element strength performance test device - Google Patents
Firefighting fusible alloy element strength performance test device Download PDFInfo
- Publication number
- CN102072839A CN102072839A CN 201110053839 CN201110053839A CN102072839A CN 102072839 A CN102072839 A CN 102072839A CN 201110053839 CN201110053839 CN 201110053839 CN 201110053839 A CN201110053839 A CN 201110053839A CN 102072839 A CN102072839 A CN 102072839A
- Authority
- CN
- China
- Prior art keywords
- test
- load
- alloy element
- fusible alloy
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a firefighting fusible alloy element strength performance test device. A higher specified test load is generated by an unequal arm lever force transmitting system, the test load is transmitted to a tested firefighting fusible alloy element, the load force is measured by a load sensor, the load sensor outputs a voltage signal in proportion to the test load force, the voltage signal is transmitted to a digital display instrument to undergo A/D conversion, test load data is displayed, and the standard serial output interface of the digital display instrument is connected with an external computer to perform data processing; and the test device can accurately, stably and repeatedly transmit the test load to the tested firefighting fusible alloy element, keep the test force stable and constant in a preset time period, realize the test of any force in an environment meeting test requirements at anytime and anywhere, automatically record and store the time for breakage under stress of the alloy element, and automatically acquire and process test data, and the structure of the device is compact, the operation of the device is simple and convenient and the performance of the device is reliable.
Description
Technical field
The present invention relates to start automatically the fire product testing apparatus, particularly a kind of strength character test unit that is used for fire-fighting with fusible alloy element.
Background technology
Good fire-fighting fusible alloy element is to guarantee that terminal such as sprinkler tip fire extinguishing element starts in predetermined temperature range automatically; and by designing requirement sprinkling protection; realize the critical elements of reliable spraying fire-extinguishing agent work, it is most important with the performance and the quality of fusible alloy element to detect fire-fighting.
Facts have proved, the fire-fighting releasing mechanism of fusible alloy element as the fire-fighting fire extinguishing product, have action accurately, the reliability height, the response time is short, advantages such as environment-adapting ability is strong, so can fire hazard the big and intensity of a fire easily the occasion of expansion use, make a response rapidly at the fire initial stage guaranteeing, reach the control fire, fire extinguishing is to reduce economic loss and casualties.Therefore, fire-fighting is subjected to widespread use with fusible alloy element.
Fire-fighting is to need long duty test with the intensity permanance of fusible alloy element, and the mission life that the common expection of sprinkler tip of fusible alloy element is installed can reach 50 years even longer.How by the test of short period, scientifically test fusible alloy element intensity, effectively assess its mission life, the quality that offsets anti-sprinkler tip is significant, so the fusible alloy element strength test is the important technology index that detects its quality.
National standard GA863-2010 " fire-fighting with fusible alloy element general requirement " 3.3 clauses and 4.3 clauses with regard to separate provision performance requirement and the test method of fire-fighting with fusible alloy element.
Standard code: the method by the 4.3.1 regulation is tested, and the fusible alloy element that is used for sprinkler tip should be able to bear 15 times design maximum load 100 h; The fusible alloy element that is used for other fire plant should be able to bear 5 times design maximum load 150 h.Or all can satisfy the requirement of 3.3.2.
Carrying out test objective is in order to make fusible link behind the operating load that has born the long duration, still to be not easy to damage because of creep stress.
Existing fire-fighting adopts easy mechanical hook-up to cooperate manually-operated method with the performance requirement and the test of fusible alloy element usually, because technology content is not high, in official hour, be difficult to keep test force to stablize constant, test load can not be exactly, stably and can repeatedly be delivered to tested fire-fighting with on the fusible alloy element, therefore influence the accuracy of fire-fighting with fusible alloy element ionization meter data, existing equipment does not all reach automatic collection fully and handles test data, the requirement of the stressed rupture time of recording element automatically.。
At present, domestic do not have development as yet and use the report of fire-fighting with fusible alloy element strength character proving installation, and the research of present technique field on this project still is in blank.Therefore, in conjunction with the existing equipment manufacture level of China, the research and development degree of intelligence is higher, can gather, handle test data automatically, and compact conformation, fire-fighting easy and simple to handle, dependable performance is the actual needs of China's fire product performance test with fusible alloy element strength character proving installation.
Summary of the invention
The purpose of invention is exactly for overcoming the deficiencies in the prior art, at the needs of fire-fighting with the test of fusible alloy element strength character, a kind of technical scheme that the fire-fighting of higher automaticity is arranged with fusible alloy element strength character proving installation is provided, make proving installation be able to exactly, stably, can repeatedly test load be delivered to tested fire-fighting with on the fusible alloy element, in official hour, it is constant to keep this test force to stablize, at any time and any place, satisfying the arbitrary test force of reproduction under the environment of test request.Simultaneously, can write down the time of the stressed fracture of alloying element automatically,, finally determine the design maximum load of fusible link, i.e. design strength by the stress value of enough multiple spots and the data of stressed time.
The present invention realizes by such technical scheme: fire-fighting fusible alloy element strength test method, it is characterized in that: adopt multiplying lever mechanism to realize accurate mechanical load, produce bigger regulation test load by the multiplying lever actuating system, test load is delivered to tested fire-fighting fusible alloy element, measure loading force by load sensor, the voltage signal that load sensor output is directly proportional with test load power passes to read out instrument to carry out the A/D conversion and shows the test load data, is connected with the computing machine of outside by read out instrument standard serial output interface and carries out data processing; Described method comprises the steps:
Step 1, by read out instrument alarm set point control figure timer, read out instrument presets 2 time alarm set points, comprising: reach the alarm set point AL1 of regulation test duration and do not arrive the alarm set point AL2 of regulation test duration;
Fire-fighting comprises frame and actuating system with fusible alloy element strength test device, it is characterized in that, actuating system adopts the multiplying lever structure, and described actuating system is by force transferring lever, sliding weight, fulcrum cutter and add the load-carrying stone roller and constitute; Actuating system with frame as supporter, described fulcrum cutter is fixed on the top of frame, fulcrum cutter and force transferring lever are coupling, sliding weight places on the force transferring lever, the long arm of force end activity of force transferring lever articulates and adds the load-carrying stone roller, the short arm of force end activity of force transferring lever articulates the detected element erecting by overhang, the detected element erecting by overhang comprises suspension member, following suspension member two parts, detected element is connected in the middle of suspension member and the following suspension member, the below of following suspension member connects load sensor, the load sensor signal connects read out instrument, by read out instrument alarm set point control figure timer, the standard serial output interface by read out instrument is connected with outside computing machine.
Technical scheme of the present invention, make proving installation be able to exactly, stably, can repeatedly test load be delivered to tested fire-fighting with on the fusible alloy element, in official hour, it is constant to keep this test force to stablize, at any time and any place, satisfy the arbitrary test force of reproduction under the environment of test request, can write down and preserve simultaneously the time of the stressed fracture of alloying element automatically.Its degree of intelligence is higher, and can gather automatically, handle test data, and compact conformation, easy and simple to handle, dependable performance.
Description of drawings
Fig. 1, apparatus of the present invention structural representation.
Among the figure: 1. frame, 2. force transferring lever, 3. sliding weight, 4. fulcrum cutter; 5. add load-carrying stone roller, 6. suspension member on the detected element erecting by overhang 61., 62. times suspension members, 7. load sensor, 8. read out instrument, 9. digital timer, 10. detected element.
Embodiment
For a more clear understanding of the present invention, describe the present invention in conjunction with the accompanying drawings and embodiments in detail:
As shown in Figure 1, fire-fighting is characterized in that with fusible alloy element strength test device, including rack 1 and actuating system described actuating system adopts the multiplying lever structure, and described actuating system is by force transferring lever 2, sliding weight 3, fulcrum cutter 4 and add load-carrying stone roller 5 and constitute; Actuating system with described frame 1 as supporter, described fulcrum cutter 4 is fixed on the top of frame 1, fulcrum cutter 4 is coupling with force transferring lever 2, sliding weight 3 places on the force transferring lever 2, the long arm of force end activity of force transferring lever 2 articulates and adds load-carrying stone roller 5, the short arm of force end activity of force transferring lever 2 articulates detected element erecting by overhang 6, detected element erecting by overhang 6 comprises suspension member 61, following suspension member 62 two parts, detected element 10 is connected in the middle of suspension member 61 and the following suspension member 62, the below of following suspension member 62 connects load sensor 7, load sensor 7 signals connect read out instrument 8, by read out instrument 8 alarm set point control figure timers 9, the standard serial output interface by read out instrument 8 is connected with outside computing machine.
Adopt actuating system and realize accurate loading, realize the purpose of large-load force with less load with multiplying lever mechanism.
Mechanical load produces bigger specified load by lever system, acts on load sensor and realizes the electronics dynamometry.Dynamometry begins the back timer starts working, and at 100 hours, is interiorly broken with fusible alloy element when fire-fighting, digital displaying meter detects the unexpected variation of weight, send control signal, make timer stop timing, and the time when maintaining fire-fighting and being broken with fusible alloy element.
The loading of proving installation realizes that by adding the load-carrying stone roller and sliding weight two parts are formed load loads, and the power of loading is by multiplying lever, detected element, and erecting by overhang acts on the load sensor.
Detected element erecting by overhang 4 load fixtures are processed by high-carbon steel, are used to hang difform fire-fighting fusible alloy element.
Actuating system is made up of leverage, mechanical load assembly two parts.Counterweight stone roller and sliding weight are produced the pulling force of 50～1000N by the lever transmission of 8:1.Regulate counterweight stone roller weight and can produce 8 times final value of thrust, mobile sliding weight can load little value of thrust on lever.
The core of load sensor is a flexible member, posts the precision resister foil gauge in its stress deformation district, forms electric bridge, when sensor is subjected to load, will export the voltage signal that is directly proportional with loading force. the precision of load sensor reaches 0.02%.
Digital displaying meter adopts SMT surface mount solder technology, and A/D adopts quick high accuracy three integral principles, slewing rate 40 times/second, the inner number of divisions 30,000 has 2 definite value controls, and reserve the standard serial output interface, be connected with the computing machine of outside and carry out data processing.
Digital timer adopts 4 demonstrations, maximum demonstration 99 hours 59 minutes.Can preset 2 times, after timing arrives preset point, output signal, timer has the maintenance function, stops timing during power down, does not lose.3 external control switch amounts are arranged, be used for starting, reset, stop.
Compare with domestic and international same device, this device has adaptation standard extensively (as GB5135.1, GB5135.9, GB5135.12, GB5135.15, GA863 etc.), the test unit part is detachable, removable, and the test unit working stability is reliable, characteristics such as bulk testing precision height.
According to the above description, can realize the solution of the present invention in conjunction with art technology.
Claims (2)
1. fire-fighting is with fusible alloy element strength test method, it is characterized in that: adopt multiplying lever mechanism to realize accurate mechanical load, produce bigger regulation test load by the multiplying lever actuating system, test load is delivered to tested fire-fighting fusible alloy element, measure loading force by load sensor, the voltage signal that load sensor output is directly proportional with test load power passes to read out instrument to carry out the A/D conversion and shows the test load data, is connected with the computing machine of outside by read out instrument standard serial output interface and carries out data processing; Described method comprises the steps:
Step 1, by read out instrument alarm set point control figure timer, read out instrument presets 2 time alarm set points, comprising: reach the alarm set point AL1 of regulation test duration and do not arrive the alarm set point AL2 of regulation test duration;
Step 2, when carrying out dynamometer by digital timer, dynamometry begin the back timer start working; If regulation in the test duration tested fire-fighting do not broken with fusible alloy element, arrive regulation during the test duration, then read out instrument alarm set point AL1 action, the control figure timer stops timing, keeps the time this moment, until manually resetting; If regulation in the test duration tested fire-fighting broken with fusible alloy element, the loading force that load sensor is measured is undergone mutation, read out instrument is detected send control signal after the power value signal changes suddenly, alarm set point AL2 action, digital timer stops timing, time data when digital timer preservation element is broken is until manually resetting.
2. fire-fighting is with fusible alloy element strength test device, comprise frame (1) and actuating system, it is characterized in that actuating system adopts the multiplying lever structure, described actuating system is by force transferring lever (2), sliding weight (3), fulcrum cutter (4) and add load-carrying stone roller (5) formation; Actuating system with described frame (1) as supporter, described fulcrum cutter (4) is fixed on the top of frame (1), fulcrum cutter (4) is coupling with force transferring lever (2), sliding weight (3) places on the force transferring lever (2), the long arm of force end activity of force transferring lever (2) articulates and adds load-carrying stone roller (5), the short arm of force end activity of force transferring lever (2) articulates detected element erecting by overhang (6), detected element erecting by overhang (6) comprises suspension member (61), following suspension member (62) two parts, it is middle with following suspension member (62) that detected element (10) is connected suspension member (61), the below of following suspension member (62) connects load sensor (7), load sensor (7) signal connects read out instrument (8), by read out instrument (8) alarm set point control figure timer (9), the standard serial output interface by read out instrument (8) is connected with outside computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538398A CN102072839B (en) | 2011-03-07 | 2011-03-07 | Firefighting fusible alloy element strength performance test method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100538398A CN102072839B (en) | 2011-03-07 | 2011-03-07 | Firefighting fusible alloy element strength performance test method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102072839A true CN102072839A (en) | 2011-05-25 |
| CN102072839B CN102072839B (en) | 2012-05-23 |
Family
ID=44031468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100538398A Expired - Fee Related CN102072839B (en) | 2011-03-07 | 2011-03-07 | Firefighting fusible alloy element strength performance test method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102072839B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822825A (en) * | 2014-03-10 | 2014-05-28 | 北京科技大学 | Automatic timing device for constant load tensile testing equipment |
| CN104142234A (en) * | 2014-07-29 | 2014-11-12 | 常州常利来电子有限公司 | Drawing tester for safety lever |
| CN110567817A (en) * | 2019-08-30 | 2019-12-13 | 无锡英特派金属制品有限公司 | Test tool and method for platinum and platinum alloy under high-temperature condition |
| CN110890236A (en) * | 2019-12-02 | 2020-03-17 | 太原科技大学 | Controllable time delay trigger device of modularization |
| CN114112649A (en) * | 2021-12-24 | 2022-03-01 | 华北电力大学（保定） | Pure mechanical transverse load stress testing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204472A1 (en) * | 1982-02-09 | 1983-08-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Rotary bending machine |
| CN2042830U (en) * | 1988-10-19 | 1989-08-16 | 湘潭市包装机械厂 | Unloading measure device for cement warehouse |
| CN2109559U (en) * | 1992-02-12 | 1992-07-08 | 方桂祥 | Automatic weighing device |
| CN201945520U (en) * | 2011-03-07 | 2011-08-24 | 公安部天津消防研究所 | Strength performance test device of fusible alloy element for firefighting |
-
2011
- 2011-03-07 CN CN2011100538398A patent/CN102072839B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204472A1 (en) * | 1982-02-09 | 1983-08-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Rotary bending machine |
| CN2042830U (en) * | 1988-10-19 | 1989-08-16 | 湘潭市包装机械厂 | Unloading measure device for cement warehouse |
| CN2109559U (en) * | 1992-02-12 | 1992-07-08 | 方桂祥 | Automatic weighing device |
| CN201945520U (en) * | 2011-03-07 | 2011-08-24 | 公安部天津消防研究所 | Strength performance test device of fusible alloy element for firefighting |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822825A (en) * | 2014-03-10 | 2014-05-28 | 北京科技大学 | Automatic timing device for constant load tensile testing equipment |
| CN103822825B (en) * | 2014-03-10 | 2016-03-02 | 北京科技大学 | A kind of automatic timing unit of constant load tensile test equipment |
| CN104142234A (en) * | 2014-07-29 | 2014-11-12 | 常州常利来电子有限公司 | Drawing tester for safety lever |
| CN104142234B (en) * | 2014-07-29 | 2016-07-06 | 常州常利来电子有限公司 | Safety plate pull-out test instrument |
| CN110567817A (en) * | 2019-08-30 | 2019-12-13 | 无锡英特派金属制品有限公司 | Test tool and method for platinum and platinum alloy under high-temperature condition |
| CN110890236A (en) * | 2019-12-02 | 2020-03-17 | 太原科技大学 | Controllable time delay trigger device of modularization |
| CN114112649A (en) * | 2021-12-24 | 2022-03-01 | 华北电力大学（保定） | Pure mechanical transverse load stress testing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102072839B (en) | 2012-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102072839B (en) | Firefighting fusible alloy element strength performance test method and device | |
| CN201917614U (en) | Space ship-oriented explosive device testing device | |
| CN201945520U (en) | Strength performance test device of fusible alloy element for firefighting | |
| CN102866009A (en) | Intelligent rope breaking tester for safety lock | |
| CN212539365U (en) | Fire extinguisher alarm device that weighs | |
| CN111504388A (en) | Real-time load and displacement monitoring system and method for power station hanging device | |
| CN201738564U (en) | Axial over-loading alarming system for scaffold | |
| CN210570920U (en) | Online monitoring system for oil level of transformer | |
| CN203100908U (en) | An over-temperature alarm indicator of a connecting fitting | |
| CN200992453Y (en) | Mine-well lifter steel-wire tension and tension difference detection protection device | |
| CN102705011A (en) | Top layer pressure detection system for coal mine roadway | |
| CN113252222A (en) | System and method for field measurement and debugging of rigid suspension device of pressed element | |
| CN205352601U (en) | Bourdon tube pressure gauge , fire extinguisher pressure anomaly alarm and fire extinguisher management system | |
| CN103091182A (en) | Biaxial-creep-instrument-based acquisition and measurement system | |
| CN202362207U (en) | Force value monitoring device for mechanical long-time strength testing machine | |
| CN201273798Y (en) | Needle percussion cap sensitivity test instrument with photoelectric automatic measuring apparatus | |
| CN204286966U (en) | A kind of concrete springback real-time watch device comprising management integrating device | |
| CN211954257U (en) | Real-time load and displacement monitoring system for power station hanging device | |
| CN203037325U (en) | Divided high-temperature-resistant electronic scale | |
| CN202836950U (en) | Safety lock breaking rope intelligent test instrument | |
| CN110954413A (en) | Control device and control method of impact response spectrum test bed | |
| CN202255817U (en) | Impact performance test device for portable fire extinguisher | |
| CN101908259B (en) | Rod axial load overrun prewarning system and method | |
| CN219121304U (en) | Safety detector and online monitoring system for large-scale bolted storage tank | |
| CN210385738U (en) | Alloy batching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee after: TIANJIN FIRE Research Institute OF MEM Address before: No. 110 Wei Jinnan Road, Nankai District, Tianjin Patentee before: TIANJIN FIRE Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 |