CN208902552U - A kind of magnetic conductive metal material cold-heat fatigue tester - Google Patents

Abstract

The utility model discloses a kind of magnetic conductive metal material cold-heat fatigue testers, including rack, cylinder, movable type is loaded platform, constant-temperature spray device, induction heating system, Machinery Control System and integrated control system, the integrated control system includes PID and DSP digital signal integrated control center, A/D converter and infrared radiation thermometer, the Machinery Control System includes metering instrument, timer and solenoid valve, the induction heating system includes three-phase bridge rectifier circuit, A.C. contactor, IGBT full bridge inverter, isolating transformer and heating inductor, the present apparatus can be heated quickly and automatic imitation spraying cooling, accurately, full-automatic control, which realizes, carries out quickly magnetic conductive metal material cold-heat fatigue behaviour, accurately test, the stability of testing inspection data, the defects of reliability is difficult to ensure , while energy conservation, environmental protection.Accurate, efficient, practical means are provided for material property detection and the exploitation of new material.

Description

A kind of magnetic conductive metal material cold-heat fatigue tester

Technical field

The utility model relates to metal material performance detection apparatus field, specifically a kind of magnetic conductive metal material cold-heat is tired Labor testing machine.

Background technique

At present both at home and abroad for the standardized experimental rig of material cold-heat fatigue property test not yet, do not have in the market yet There is mature general standardized fatigue behaviour detection testing machine.Domestic and international some material development mechanisms and scientific research institutions exist When detecting the thermal fatigue test performance of material, some easy, nonstandardized technique dedicated units are made, often to complete some spies Determine the cold-heat fatigue property detection of material.General common heating method mainly has following a few classes: flame heating, salt bath heating, Electric heating stove heating, current electrifying heating, electromagnetic induction heating etc..After sample is heated to specific temperature in heating device, use Cooling water is cooled down, and is then reheated with heating device, then is cooled down, and such iterative cycles are completed to material cold-heat fatigability The detection of energy；Frequently with cyclic test is manually carried out between heating device and cooling water, so large labor intensity, some also dirts Environment is contaminated, test energy consumption is very high, and the time of test is longer, and test temperature and time control precision are poor, tests by artificial Factor is affected, and test error is big, and the dispersibility of test result is big.The stability of testing inspection data, reliability are all difficult to Guarantee.

Utility model content

The purpose of this utility model is to provide a kind of magnetic conductive metal material cold-heat fatigue testers, to solve above-mentioned back The problem of being proposed in scape technology.

To achieve the above object, the utility model provides the following technical solutions:

A kind of magnetic conductive metal material cold-heat fatigue tester, including rack are equipped with cylinder in the rack, cylinder Telescopic rod end is equipped with movable type and is loaded platform, and movable type, which is loaded on platform to be loaded, test specimen, and test specimen is located in rack Top is equipped with constant-temperature spray device, and induction heating system is equipped in rack, Machinery Control System sum aggregate is also equipped in rack At control system, the integrated control system includes PID and DSP digital signal integrated control center, A/D converter and infrared survey Wen Yi, the PID and DSP digital signal integrated control center, A/D converter and infrared radiation thermometer are connected, PID and DSP number Signal integrated control center is electrically connected with Machinery Control System and induction heating system respectively, and the Machinery Control System includes meter Secondary instrument, timer and solenoid valve, the metering instrument, timer are electrically connected with the solenoid valve respectively, and solenoid valve is electrically connected with cylinder, institute Induction heating system is stated to include three-phase bridge rectifier circuit, A.C. contactor, IGBT full bridge inverter, isolating transformer and add Thermal sensor, the three-phase bridge rectifier circuit input terminal connect to power supply, and three-phase bridge rectifier circuit output end connects with exchanging The input terminal of tentaculum connects, and the output end of A.C. contactor is connect with the input terminal of IGBT full bridge inverter, and IGBT full-bridge is inverse The output end on power transformation road and the input terminal of isolating transformer connect, and the output end of isolating transformer is connect with heating inductor, institute Stating heating inductor is cylinder inductor, and cylinder inductor includes cylinder induction coil, extension tube and mounting plate, the cylinder induction Circle is formed by first party copper pipe coiling multi-turn, and the first party copper pipe both ends of the cylinder induction coil are fixedly connected to extension tube, Two extension tube end welding are respectively and fixedly provided with water swivel.

As a further solution of the present invention: the size of the first party copper pipe is 10mm × 12mm, coiling circle number It is three, is 60mm or 100mm around loop diameter, the first party copper pipe surface is coated with multilayer glass adhesive tape.

As a further solution of the present invention: the size of second party copper pipe is made of second party copper pipe for the extension tube For 10mm × 20mm, the fixed form of extension tube and cylinder induction coil is welding.

As a further solution of the present invention: being welded with mounting plate, mounting plate in two extension tubes On offer waist through hole.

As a further solution of the present invention: the movable type is loaded, platform is connect with housing slide, and movable type is loaded Platform is connect by bolt with telescopic rod.

As a further solution of the present invention: the heating inductor is plane mosquito-repellent incense inductor, the plane mosquito Fragrant inductor includes mosquito-repellent incense induction coil, the second extension tube and the second mounting plate, the mosquito-repellent incense induction coil by third party's copper pipe disk around It forms and is in mosquito-repellent incense shape, the both ends of mosquito-repellent incense induction coil are fixedly connected to the second extension tube, and second extension tube is by four directions Copper pipe is made, and the second mounting plate is welded in two second extension tubes, and two second extension tube ends are welded and fixed There is water swivel.

As a further solution of the present invention: the fixed form at the both ends of the mosquito-repellent incense induction coil and the second extension tube For welding, the size of cubic copper pipe is 10mm × 15mm, equidistantly offers multiple mounting holes side by side on the second mounting plate.

As a further solution of the present invention: the heating inductor is planar square inductor, the plane side Shape inductor includes rectangular induction coil, third extension tube and third mounting plate, and the rectangular induction coil is tortuous by the 5th side's copper pipe It is coiled to form, multiple magnetizers is set with side by side outside the 5th side's copper pipe of rectangular induction coil, to enhance magnetic field, rectangular induction The both ends of circle are fixedly connected to third extension tube, and third extension tube is made of the 6th side's copper pipe, in two third extension tubes It is welded with third mounting plate, two thirds extend tube ends and are welded with-water swivel, in two third extension tubes Water swivel is welded in piece its top sidewall.

As a further solution of the present invention: the third extension tube and the fixed form of rectangular induction coil are weldering It connects, equidistantly offers multiple second mounting holes on third mounting plate side by side.

It is sprayed compared with prior art, the utility model has the beneficial effects that the present apparatus can be heated quickly with automatic imitation Cooling, accurate, full-automatic control, which realizes, fast and accurately surveys magnetic conductive metal material cold-heat fatigue behaviour Examination.Existing some devices are efficiently solved in the test of metal material cold-heat fatigue property, the time of test is longer, test temperature Degree and time control precision are poor, and test is affected by artificial factor, and test error is big, and the dispersibility of test result is big. The defects of stability of testing inspection data, reliability is difficult to ensure, while energy conservation, environmental protection.For material property detection and green wood The exploitation of material provides accurate, efficient, practical means.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of magnetic conductive metal material cold-heat fatigue tester.

Fig. 2 is the schematic diagram of magnetic conductive metal material cold-heat fatigue tester.

Fig. 3 is the structural schematic diagram of cylinder inductor in magnetic conductive metal material cold-heat fatigue tester.

Fig. 4 is the top view of Fig. 3.

Fig. 5 is the structural schematic diagram of plane mosquito-repellent incense inductor in magnetic conductive metal material cold-heat fatigue tester.

Fig. 6 is the structural schematic diagram of planar square inductor in magnetic conductive metal material cold-heat fatigue tester.

Fig. 7 is the top view of Fig. 6.

In figure: 1-PID and DSP digital signal integrated control center, 2- metering device, 3- timer, 4- solenoid valve, 5- gas Cylinder, 6- telescopic rod, 7- constant-temperature spray device, 8- test specimen, 9- movable type be loaded platform, 10- three-phase bridge rectifier circuit, 11- hand over Flow contactor, 12-IGBT full bridge inverter, 13- isolating transformer, 14- heating inductor, 15- infrared radiation thermometer, 16-A/D Converter, 17- Machinery Control System, 18- rack, 19- induction heating system, 20- cylinder induction coil, 21- extension tube, 22- peace Loading board, 23- mosquito-repellent incense induction coil, the second extension tube of 24-, the second mounting plate of 25-, the rectangular induction coil of 26-, 27- third extension tube, 28- third mounting plate.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1

Please refer to Fig. 1~4, in the utility model embodiment, a kind of magnetic conductive metal material cold-heat fatigue tester, including Rack 18, is equipped with cylinder 5 in the rack 18, and 6 end of telescopic rod of cylinder 5 is equipped with movable type and is loaded platform 9, movable type dress Chuck 9 is slidably connected with rack 18, and the movable type platform 9 that is loaded is connect by bolt with telescopic rod 6, and movable type is loaded on platform 9 and is loaded There is test specimen 8, is located above test specimen 8 in rack 18 and constant-temperature spray device 7 is installed, induction heating is installed in rack 18 System 19, the effect of induction heating system 19 are heated to test specimen, and cylinder 5 drives laboratory sample by telescopic rod 6 Heated in heating station, cooled down in cooling station, the cooling water of constant-temperature spray device 7 be it is normally opened and independent, Spraying cooling water tank is equipped with constant temperature refrigeration equipment, and it is cold generally to actually use operating condition setting spray according to the metal material of fatigue test But water temperature and spraying cooling time in identical spray flow, constant water temperature, under identical cooling time, make laboratory sample It is cooled to the test temperature of requirement；Machinery Control System 17 and integrated control system, the integrated control are also equipped in rack 18 System processed includes PID and DSP digital signal integrated control center 1, A/D converter 16 and infrared radiation thermometer 15, the PID with DSP digital signal integrated control center 1, A/D converter 16 and infrared radiation thermometer 15 are connected, PID and the integrated control of DSP digital signal Center 1 processed is electrically connected with Machinery Control System 17 and induction heating system 19 respectively, and the Machinery Control System 17 includes metering Instrument 2, timer 3 and solenoid valve 4, the metering instrument 2, timer 3 are electrically connected with solenoid valve 4 respectively, 5 electricity of solenoid valve 4 and cylinder Connection, timer 3 convert instructions into electric signal control the opening of solenoid valve 4, closed action, drive to realize to cylinder 5 Laboratory sample 8 reaches heating station or cooling station and realizes the accurate control of heating time and cooling time, and solenoid valve 4 is each As soon as cylinder is instructed to carry out a heating and cooling circulation, metering device 2 completes the cumulative of a test cycle number, when circulation time It counts to up to after the global cycle test number (TN) of integrated control center setting, control centre can instruct induction heating system 19 and mechanical control System 17 processed is wholly off, and test is completed；The induction heating system 19 includes three-phase bridge rectifier circuit 10, A.C. contactor 11, IGBT full bridge inverter 12, isolating transformer 13 and heating inductor 14,10 input terminal of three-phase bridge rectifier circuit It connects to power supply, 10 output end of three-phase bridge rectifier circuit is connect with the input terminal of A.C. contactor 11, A.C. contactor 11 Output end is connect with the input terminal of IGBT full bridge inverter 12, the output end and isolating transformer of IGBT full bridge inverter 12 13 input terminal connection, the output end of isolating transformer 13 are connect with heating inductor 14, and the heating inductor 14 is cylinder Inductor, cylinder inductor include cylinder induction coil 20, extension tube 21 and mounting plate 22, and the cylinder induction coil 20 is by first party Copper pipe coiling multi-turn forms, and the size of the first party copper pipe is 10mm × 12mm, and coiling circle number is preferably three, is around loop diameter 60mm, the first party copper pipe surface are coated with multilayer glass adhesive tape, and the first party copper pipe both ends of the cylinder induction coil 20 are equal It is fixedly connected with extension tube 21, extension tube 21 is 10mm × 20mm by the size that second party copper pipe is made in second party copper pipe, is extended The fixed form of pipe 21 and cylinder induction coil 20 is preferably welded, and is welded with mounting plate 22 in two extension tubes 21, is pacified Waist through hole is offered in loading board 22, two 21 ends of extension tube, which are welded, is respectively and fixedly provided with 4-16 water swivel, in two extension tubes 21 Its top sidewall on be welded with 4-12 water swivel, so that recirculated cooling water is passed through by water swivel, to heating inductor 14 Ontology cools down, and improves service efficiency and service life, and the industrial-frequency alternating current stream is whole by three-phase bridge rectifier circuit 10 Stream is then height by 12 inversion of IGBT full bridge inverter to be connected to inverter circuit by A.C. contactor 11 after direct current Frequency alternating voltage export be to isolating transformer 13 one " exchange-DC-AC " transition process, rectification and inversion adopt It is filtered with bulky capacitor, industrial-frequency alternating current is circulated and is melted into 1KHz -20KHz electric current of intermediate frequency, high pressure is become to the low pressure of isolation, and Impedance matching is carried out, flows through powerful high-frequency current in heating inductor 14 when heating, in tested magnetic conductive metal material Expect to generate induced current in laboratory sample 8, therefore test specimen 8 is heated rapidly；The infrared radiation thermometer 15 is installed on heating 14 lower section of inductor, the temperature-measuring range of infrared radiation thermometer 15 are 0 DEG C~1000 DEG C, and infrared radiation thermometer 15 is according to the temperature detected 4~20mA current signal is exported, transmits signals back to PID and DSP digital signal integrated control center 1 through A/D converter 16, Realize the data communication of test specimen temperature and heating system.

Embodiment 2

Referring to Fig. 5, the present embodiment difference from example 1 is that, the heating inductor 14 be plane mosquito-repellent incense Inductor, the plane mosquito-repellent incense inductor include mosquito-repellent incense induction coil 23, the second extension tube 24 and the second mounting plate 25, the mosquito-repellent incense Induction coil 23 is coiled to form by third party's copper pipe and in mosquito-repellent incense shape, and the both ends of mosquito-repellent incense induction coil 23 are fixedly connected to the second extension The fixed form of pipe 24, the both ends of mosquito-repellent incense induction coil 23 and the second extension tube 24 is preferably welded, second extension tube 24 by The cubic copper pipe is made, and the size of cubic copper pipe is 10mm × 15mm, and the is welded in two second extension tubes 24 Two mounting plates 25 equidistantly offer multiple mounting holes on second mounting plate 25 side by side, and two second extension tube, 24 ends are welded It is fixed with 4-16 water swivel, recirculated cooling water is passed through by water swivel, 14 ontology of heating inductor is cooled down, raising makes With efficiency and service life.

Embodiment 3

Please refer to Fig. 6-7, the present embodiment and embodiment 1 and embodiment 2 the difference is that, the heating inductor 14 For planar square inductor, the planar square inductor includes rectangular induction coil 26, third extension tube 27 and third mounting plate 28, the rectangular induction coil 26 is coiled to form by the 5th side's copper pipe complications, outside the 5th side's copper pipe of rectangular induction coil 26 side by side Multiple magnetizers 29 are set with, to enhance magnetic field, the both ends of rectangular induction coil 26 are fixedly connected to third extension tube 27, the Three extension tubes 27 and the fixed form of rectangular induction coil 26 are preferably welded, and third extension tube 27 is made of the 6th side's copper pipe, and two It is welded with third mounting plate 28 in root third extension tube 27, equidistantly offers multiple second side by side on third mounting plate 28 Mounting hole, two 27 ends of third extension tube are welded with 4-16 water swivel, one in two third extension tubes 27 its It is welded with 4-12 water swivel in top sidewall, recirculated cooling water is passed through by water swivel, 14 ontology of heating inductor is cooled down Cooling improves service efficiency and service life.

There are four types of basic operation control models for the PID and the tool of DSP digital signal integrated control center 1: constant current is run, Output-constant operation, temperature-constant operation, process operation.

1, constant current is run

That is constant output current operational mode, settable output current target value, the upper raising speed of runing time and electric current Rate, after setting target current value, regardless of load changes, device remains that electric current is constant, and output power is with load Change and changes.

2, output-constant operation

That is constant output operational mode, settable output power target value, the upper raising speed of runing time and power Rate, after setting fixed output power target value, when load changes, the size of device automatic adjustment output electric current exports to meet Power it is constant.

3, temperature-constant operation

It is heated to keep the operational mode of certain time after set temperature, when settable holding temperature target value and heat preservation Between, in such a mode, device can carry out constant temperature closed-loop control by built-in PID, output power be automatically adjusted, according to setting Heating rate heating, after linearly reaching temperature target, length is kept the temperature automatically according to set time.Make the test sample of detection Product 8 maintain invariable in target temperature value certain time.

4, process is run

Process runs control model, and editable program realizes complicated multistage control technique.The most editables of device And 16 processes are saved, each process can add 32 programmable process sections, and each process section can be from customized five Kind operational mode: constant current operation, output-constant operation, temperature-constant operation, circular flow are out of service, wherein can set in circular flow Determine the fatigue test total degree of sample progress, it is out of service in can set fatigue test total degree after the completion of, execute stopping automatically Shutdown movement, the full-automatic complete cyclic test for completing a tired test block of realization device.

The working principle of the utility model is: when the utility model is used, in PID and the integrated control of DSP digital signal After the heart 1 sets test parameters starting, induction heating system 19 and Electro Mechanical System 22 is instructed to execute, induction heating system 19, electric current, power, time, cycle-index, temperature signal etc. are executed parameter reality by Electro Mechanical System 22, infrared radiation thermometer 15 When synchronous feedback PID and DSP digital signal integrated control center 1, each list is coordinated at PID and DSP digital signal integrated control center 1 Metasystem is carried out fatigue test by the accurate automatic cycle of program of setting, and test specimen 8 is heated to after temperature requirement by journey Sequence normally opened constant-temperature spray device 7 is moved to by cylinder 5 in the following, as required the time cooled down, complete a cool-hot fatigue circulation Afterwards, the tired note of metering instrument adds 1 time, and signal is fed back to PID and DSP digital signal integrated control center 1, initially enters next " heating-cooling " circulation, after the cumulative total degree of metering instrument reaches the fatigue test total degree of control centre's setting, mould out of service Block executes automatically stops shutdown movement, and the complete cool-hot fatigue cyclic test of a sample is completed.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (9)

1. a kind of magnetic conductive metal material cold-heat fatigue tester, including rack (18), which is characterized in that in the rack (18) It is equipped with cylinder (5), telescopic rod (6) end of cylinder (5) is equipped with movable type and is loaded platform (9), and movable type is loaded on platform (9) and fills Card has test specimen (8), is located above test specimen (8) in rack (18) and is equipped with constant-temperature spray device (7), peace in rack (18) Equipped with induction heating system (19), Machinery Control System (17) and integrated control system, the collection are also equipped in rack (18) It include PID and DSP digital signal integrated control center (1), A/D converter (16) and infrared radiation thermometer (15) at control system, The PID connects with DSP digital signal integrated control center (1), A/D converter (16) and infrared radiation thermometer (15), PID with DSP digital signal integrated control center (1) is electrically connected with Machinery Control System (17) and induction heating system (19) respectively, described Machinery Control System (17) includes metering instrument (2), timer (3) and solenoid valve (4), the metering instrument (2), timer (3) point It is not electrically connected with solenoid valve (4), solenoid valve (4) is electrically connected with cylinder (5), and the induction heating system (19) includes three-phase bridge Rectification circuit (10), A.C. contactor (11), IGBT full bridge inverter (12), isolating transformer (13) and heating inductor (14), three-phase bridge rectifier circuit (10) input terminal connects to power supply, three-phase bridge rectifier circuit (10) output end and friendship Flow the input terminal connection of contactor (11), the output end of A.C. contactor (11) and the input terminal of IGBT full bridge inverter (12) Connection, the output end of IGBT full bridge inverter (12) are connect with the input terminal of isolating transformer (13), isolating transformer (13) Output end connect with heating inductor (14), the heating inductor (14) be cylinder inductor, cylinder inductor include circle Column induction coil (20), extension tube (21) and mounting plate (22), the cylinder induction coil (20) by first party copper pipe coiling multi-turn and At the first party copper pipe both ends of the cylinder induction coil (20) are fixedly connected to extension tube (21), two extension tube (21) ends Portion's welding is respectively and fixedly provided with water swivel.

2. magnetic conductive metal material cold-heat fatigue tester according to claim 1, which is characterized in that the first party copper The size of pipe is 10mm × 12mm, and it is 60mm or 100mm, the first party copper pipe surface packet around loop diameter that coiling circle number, which is three, It is covered with multilayer glass adhesive tape.

3. magnetic conductive metal material cold-heat fatigue tester according to claim 1, which is characterized in that the extension tube It (21) is 10mm × 20mm by the size that second party copper pipe is made in second party copper pipe, extension tube (21) and cylinder induction coil (20) Fixed form is welding.

4. magnetic conductive metal material cold-heat fatigue tester according to claim 2, which is characterized in that two extensions It is welded with mounting plate (22) on pipe (21), mounting plate offers waist through hole on (22).

5. magnetic conductive metal material cold-heat fatigue tester according to claim 3, which is characterized in that the mobile dress Chuck (9) is slidably connected with rack (18), movable type be loaded platform (9) connect with telescopic rod (6) by bolt.

6. magnetic conductive metal material cold-heat fatigue tester according to claim 1, which is characterized in that the heat induced Device (14) be plane mosquito-repellent incense inductor, the plane mosquito-repellent incense inductor include mosquito-repellent incense induction coil (23), the second extension tube (24) and Second mounting plate (25), the mosquito-repellent incense induction coil (23) are coiled to form by third party's copper pipe and in mosquito-repellent incense shape, mosquito-repellent incense induction coils (23) both ends are fixedly connected to the second extension tube (24), and second extension tube (24) is made of cubic copper pipe, and two It is welded in second extension tube (24) the second mounting plate (25), two second extension tube (24) ends are welded with Water swivel.

7. magnetic conductive metal material cold-heat fatigue tester according to claim 6, which is characterized in that the mosquito-repellent incense induction The fixed form at the both ends and the second extension tube (24) of enclosing (23) is welding, and the size of cubic copper pipe is 10mm × 15mm, the Multiple mounting holes are equidistantly offered on two mounting plates (25) side by side.

8. magnetic conductive metal material cold-heat fatigue tester according to claim 1, which is characterized in that the heat induced Device (14) be planar square inductor, the planar square inductor include rectangular induction coil (26), third extension tube (27) and Third mounting plate (28), the rectangular induction coil (26) are coiled to form by the 5th side's copper pipe complications, and the of rectangular induction coil (26) It is set with multiple magnetizers (29) side by side outside five side's copper pipes, to enhance magnetic field, the both ends of rectangular induction coil (26) are fixed It is connected with third extension tube (27), third extension tube (27) is made of the 6th side's copper pipe, welds on two third extension tubes (27) It connects and is fixed with third mounting plate (28), two third extension tube (27) ends are welded with water swivel, and two thirds extend Water swivel is welded in its top sidewall in pipe (27).

9. magnetic conductive metal material cold-heat fatigue tester according to claim 8, which is characterized in that the third extends The fixed form for managing (27) and rectangular induction coil (26) is welding, equidistantly offers multiple second side by side on third mounting plate (28) Mounting hole.