CN206095475U - Foil gage installation device who uses in engineering - Google Patents

Foil gage installation device who uses in engineering Download PDF

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Publication number
CN206095475U
CN206095475U CN201621159762.7U CN201621159762U CN206095475U CN 206095475 U CN206095475 U CN 206095475U CN 201621159762 U CN201621159762 U CN 201621159762U CN 206095475 U CN206095475 U CN 206095475U
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China
Prior art keywords
temperature
foil gauge
sleeve
measured
test specimen
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CN201621159762.7U
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Chinese (zh)
Inventor
张宏志
葛兵
沈洪森
陆建宇
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Daqing Petroleum Administration Bureau
China National Petroleum Corp
Daqing Oilfield Construction Group Co Ltd
Original Assignee
Daqing Petroleum Administration Bureau
China National Petroleum Corp
Daqing Oilfield Construction Group Co Ltd
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Priority to CN201621159762.7U priority Critical patent/CN206095475U/en
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Abstract

The utility model discloses a foil gage installation device who uses in engineering relates to the installation device field of measuring technology component, include: elasticity surface pressure counts (A), the test piece that awaits measuring (B) and constant temperature heating device (C), it splices ultra -low temperature foil gage (D) to await measuring one side of test piece (B), welding mode that the opposite side of test piece (B) of awaiting measuring passes through undercurrent spot welding with constant temperature heating device (C) connects, constant temperature heating device (C) connect with elasticity surface pressure counts (A) electric connection, (A) the crimping of elasticity surface pressure meter is in ultra -low temperature foil gage (D) another on the surface, the utility model discloses can guarantee the solidifying pressure and the curing temperature of the installation of ultra -low temperature foil gage to make each item performance index such as resistance value, temperature self compensating coefficient and temperature compensating precision of ultra -low temperature foil gage satisfy the operation requirement and not meet with damaging.

Description

A kind of strain piece mounting device applied in engineering
Technical field
This utility model is related to the erecting device field of measuring technology element, the strain applied in specifically a kind of engineering Piece mounting device.
Background technology
There presently does not exist the substantial of maturation and strain piece mounting device with regard to ultralow temperature.Common room temperature foil gauge peace Dress technique only need at normal temperatures carry out finger and press i.e. curable bonding without the need for heating, and the installation of ultralow temperature foil gauge must be adopted With ultralow temperature special adhesive and the harsh technical requirements of its solidifying pressure, solidification temperature must are fulfilled for, using common room temperature The installation method of foil gauge can not complete the installation of ultralow temperature foil gauge, and laboratory needle is using folder to the way that small specimen is adopted Tool(Ensure solidifying pressure)Clamping posts the test specimen of foil gauge and is put in baking oven(Keep constant curing temperature)Insulation can be completed The installation of ultralow temperature foil gauge, but to can not be applied to component to be measured relatively large compared with complex engineering practical application for this mode In.
Profile is more complicated, volume to need the component for measuring ultralow temperature strain often to face for some on field engineering More huge problem, simple fixture and baking oven can not complete the installation of ultralow temperature foil gauge in laboratory.Ultralow temperature is strained Piece is frequently used in the important test in some important engineering fields with the price of the technology content, test performance and costliness of its essence point Technically, ultralow temperature strain gauge adhesion technique directly determines the quality of foil gauge test performance again, is also directly to determine that strain is surveyed One of key factor of examination success or not.Therefore it is the bonding process and protection question of solution ultralow temperature foil gauge, it is ensured that ultralow Warm foil gauge measurement is accurate, sensitivity is high, it is considered to which technique for sticking wants easy to operate low cost, and ensures that ultralow temperature foil gauge is pacified The solidifying pressure and solidification temperature of dress, so that the resistance value of ultralow temperature foil gauge, temperature self-compensation coefficient and temperature-compensating The property indices such as precision meet use requirement and are not subjected to damage, also in the urgent need to developing a set of very reliable engineering On ultralow temperature foil gauge mounting system device.
The content of the invention
In view of this, this utility model provides the strain piece mounting device applied in a kind of engineering, and can guarantee that ultralow temperature Foil gauge install solidifying pressure and solidification temperature so that the resistance value of ultralow temperature foil gauge, temperature self-compensation coefficient and The property indices such as temperature-compensating precision meet use requirement in engineering and are not damaged.
The strain piece mounting device applied in a kind of engineering includes:
Elastic surface piezometer, test specimen to be measured and constant temperature heating device, it is characterised in that the side glue of the test specimen to be measured Ultralow temperature foil gauge is connect, the opposite side of the test specimen to be measured passes through the welding manner and the constant temperature heating device of small current spot welding Connection, the constant temperature heating device is electrically connected with the elastic surface piezometer, and the elastic surface piezometer is crimped on institute State on the upper surface of ultralow temperature foil gauge;
The elastic surface piezometer, for controlling the solidifying pressure when ultralow temperature foil gauge is installed, and feedback is treated The heating-up temperature of test block is to the constant temperature heating device;
The constant temperature heating device, it is constant for heating-up temperature when controlling the ultralow temperature foil gauge installation;
Wherein, the small current size of the welding manner of the small current spot welding is 25~35 times of core diameter;It is described super Low temperature foil gauge is -100 DEG C of foil gauges used below.
Preferably, the strain piece mounting device applied in a kind of described engineering also includes installs fixture, the installation folder The band steel circle with opening, is connected to form closed loop circle at the opening of the band steel circle with U-shaped band steel groove on tool, and 2 closed loop circles lead to Cross reinforcing rod to link into an integrated entity;The constant temperature heating device is arranged in the U-shaped band steel groove of the installs fixture.
Preferably, the side of the test specimen to be measured is glued with the ultralow temperature foil gauge using ultralow temperature bonded adhesives, Poly tetrafluoroethylene is coated with another surface of the ultralow temperature foil gauge, the elastic surface piezometer is crimped on described On the surface of poly tetrafluoroethylene;
Wherein, the ultralow temperature bonded adhesives is resistance to less than -100 DEG C of bonded adhesives.
Preferably, the elastic surface piezometer includes:Foil gauge pressure applies meter and temperature probe pressure applies meter;
The foil gauge pressure applies meter, for controlling the solidifying pressure when ultralow temperature foil gauge is installed;
The temperature probe pressure applies meter, for feeding back the heating-up temperature of test specimen to be measured to the constant temperature heating device;
It is 50~70mm that wherein foil gauge pressure applies meter with the centre distance of temperature probe pressure applying meter.
Preferably, the constant temperature heating device includes:Thermostat, described thermostat one end connects with thermostat temperature probe Connect, the other end of the thermostat is connected with heating rod, the heating rod is supported and fixed in heat sink by implant, described Heat sink is fixed on the test specimen to be measured by installs fixture;
Wherein, the implant is glass silk flosssilk wadding.
Preferably, the foil gauge pressure applies have nut, the weldering that described nut one end passes through small current spot welding on meter The mode of connecing is connected on shield, and the nut is threadedly coupled with jackscrew, and the jackscrew passes through the shield, and the jackscrew outside is logical Cross the connection of socket mode and sleeve, the sleeve outside is connected by way of socket with spring, one end of the sleeve and answer Become the connection of piece jacking block, the upper and lower ends that the other end of the sleeve has outwardly cylinder shoulder, the spring withstand on respectively set On the cylinder shoulder and foil gauge jacking block of cylinder;The foil gauge jacking block is crimped on the surface of ultralow temperature foil gauge;
Wherein, the small current size of the welding manner of the small current spot welding is 25~35 times of core diameter.
Preferably, the temperature probe pressure applies have nut on meter, and described nut one end is by small current spot welding Welding manner is connected on shield, and the nut is threadedly coupled with jackscrew, and the jackscrew passes through the shield, outside the jackscrew Side by way of socket with the connection of sleeve, the sleeve outside is connected by way of socket with spring, one end of the sleeve It is connected with probe jacking block, the upper and lower ends that the sleeve other end has outwardly cylinder shoulder, the spring withstand on respectively sleeve Cylinder shoulder and probe jacking block on;The probe jacking block has groove, and probe jacking block is crimped onto the constant temperature and adds by the groove On the thermostat temperature probe of thermal;
Wherein, the small current size of the welding manner of the small current spot welding is 25~35 times of core diameter.
Preferably, the foil gauge pressure applies meter and applies the adjustable solid of 0.03~0.3MPa to ultralow temperature foil gauge surface Change pressure.
Preferably, the temperature probe pressure apply meter and control ultralow temperature foil gauge to carry out the solidification temperature of heated at constant temperature be 120~185 DEG C, solidify afterwards temperature is 165 DEG C;
Wherein, the solidification temperature is the temperature that test specimen to be measured is heated to reach for the first time, and the solidify afterwards temperature is solidification After temperature is maintained 2 hours, the secondary heating-up temperature of test specimen to be measured.
This utility model has the advantages that:
This utility model has the advantages that design is simple, sensitivity is high, with low cost, it is high to make simple, safe and practical property, Simultaneously elastic surface piezometer of the present utility model and constant temperature heating device can regulate and control to ensure consolidating for ultralow temperature foil gauge installation Change pressure and solidification temperature, so that the resistance value of ultralow temperature foil gauge, temperature self-compensation coefficient and temperature-compensating precision etc. Property indices meet use requirement and are not subjected to damage.
Description of the drawings
By the description below with reference to accompanying drawing to this utility model embodiment, of the present utility model above-mentioned and other mesh , feature and advantage it is apparent, in legend:
Fig. 1 is the ultralow temperature strain piece mounting device structural representation of the plane test specimen to be measured of this utility model embodiment;
Fig. 2 is the manometric structural representation of elastic surface of this utility model embodiment;
Fig. 3 is the structural representation of the constant temperature heating device of this utility model embodiment;
Fig. 4 is the block diagram of the heating process of this utility model embodiment;
Fig. 5 is that the structural diagrams of the on-plane surface foil gauge jacking block of another embodiment of this utility model are intended to;
Fig. 6 is that the installs fixture structural diagrams of the on-plane surface test specimen to be measured of another embodiment of this utility model are intended to;
Fig. 7 is that the ultralow temperature strain piece mounting device structure of the on-plane surface test specimen to be measured of another embodiment of this utility model is shown It is intended to.
Specific embodiment
This utility model is described below based on example, but what deserves to be explained is, this utility model is not limited to These embodiments.Below to detailed description of the present utility model in, it is detailed to describe some specific detail sections.However, For the part without detailed description, those skilled in the art are also appreciated that completely this utility model.
Additionally, it should be understood by one skilled in the art that the accompanying drawing for being provided is simply to illustrate mesh of the present utility model , feature and advantage, accompanying drawing is not to be actually drawn to scale.
Meanwhile, unless the context clearly requires otherwise, " including ", "comprising" otherwise in entire disclosure and claims etc. Similar word should be construed to the implication for including rather than exclusive or exhaustive implication;That is, being " including but not limited to " Implication.
It is pointed out that ultralow temperature foil gauge described in the utility model is -100 DEG C of foil gauges used below.
Fig. 1 is the ultralow temperature strain piece mounting device structural representation of the plane test specimen to be measured of this utility model embodiment. As shown in figure 1, the strain piece mounting device applied in a kind of engineering, including elastic surface piezometer A, test specimen B to be measured and constant temperature Heater C.Elastic surface piezometer A is installed in the side spot welding of test specimen B to be measured, 0.1~0.3MPa is applied to foil gauge Solidifying pressure;The opposite side of test specimen B to be measured is by the welding manner of small current spot welding by constant temperature heating device C and test specimen to be measured B is closely joined together;Ultralow temperature foil gauge D is crimped on test specimen B outer surfaces to be measured by elastic surface piezometer A, and constant temperature adds Thermal C carries out heated at constant temperature to ultralow temperature foil gauge D so that temperature reaches 165 DEG C of 135 DEG C of solidification temperature and solidify afterwards temperature. Wherein, the structure and principle of elastic surface piezometer A and constant temperature heating device C is described in detail in figs. 2 and 3, and welding is adopted With the welding rod of 2.5mm, it is 62A~87A that the size of current of the welding manner of small current spot welding is.
Fig. 2 is the manometric structural representation of elastic surface of this utility model embodiment.As shown in Fig. 2 elastic surface Piezometer includes that foil gauge pressure applies meter A1 and temperature probe pressure applies meter A2, and foil gauge pressure applies meter A1 and visits with thermometric It is 60mm that head pressure applies the distance of meter A2.
Wherein, foil gauge pressure applies meter A1 includes nut 1, shield 2, spring 3, sleeve 4, foil gauge jacking block 5 and jackscrew 6;Nut 1 is connected on shield 2 by the welding manner of small current spot welding, and jackscrew passes through the shield, and jackscrew outside is by set The connection of mode and sleeve is connect, sleeve outside is connected by way of socket with spring, and spring and sleeve one end are arranged on foil gauge On jacking block 5, the sleeve other end has an outwardly cylinder shoulder, the cylinder shoulder on the other end top of the other end spring of spring 3 to sleeve 4, Foil gauge jacking block 5 is crimped on the surface of ultralow temperature foil gauge D;
Further, the manometric shield 2 of elastic surface is connected to by the welding manner of small current spot welding before installing The assembling that foil gauge pressure applies meter A1 is completed in surface of test piece to be measured;
Wherein, welding adopts the welding rod of 2.5mm, and it is 62A~87A that the size of current of the welding manner of small current spot welding is.
Wherein, temperature probe pressure applies meter A2 includes nut 1, shield 2, spring 3, sleeve 4, jackscrew 6, probe jacking block 7; Nut 1 is connected on shield 2 by the welding manner of small current spot welding, and jackscrew 6 is connected with nut 1 by screw thread, sleeve 4 It is connected on jackscrew 6 by socket mode, jackscrew 6 passes through the connection on the outside of the shield, jackscrew by way of socket with sleeve, The outside of sleeve 4 is connected by way of socket with spring, and spring and sleeve one end are arranged on probe jacking block 7, sleeve other end tool It is outwardly convex go out a shoulder, the cylinder shoulder on the other end top of the other end spring of spring 3 to sleeve 4, the probe jacking block 7 is crimped onto perseverance On warm device temperature probe 8;Probe jacking block 7 has groove, and probe jacking block 7 is crimped onto thermostat temperature probe 8 by the groove On;
Further, the manometric shield 2 of elastic surface is connected to by the welding manner of small current spot welding before installing The assembling that temperature probe pressure applies meter A2 is completed in surface of test piece to be measured;
Wherein, using the welding rod of 2.5mm, it is 62A~87A that the size of current of the welding manner of small current spot welding is.
Further, in fig. 2 the manometric operation principle of elastic surface is as follows:By recklessly can theorem calculate bullet The precession 1.5cm of jackscrew 6 of property front pressure ga ge(Namely spring deflection is 1.5cm)When, sleeve 4 is by the pressure transmission of jackscrew 6 To spring 3, spring 3 is again by spring force(About 0.2MPa)Flexibility be applied to foil gauge jacking block 5 so as to be delivered to scribble ultralow temperature glue Connect glue and be coated with the ultralow temperature foil gauge surface of poly tetrafluoroethylene, add so as to reach the flexible constant of ultralow temperature foil gauge Pressure 0.0.3MPa~0.3MPa technological requirements;Thermostat temperature probe 8 is the temperature for detecting ultralow temperature foil gauge D, is detected Temperature be transferred to thermostat 11(Fig. 4)Middle control heating-up temperature is constant.
Further, above-mentioned welding manner do not allow test specimen B surface to be measured have compared with deformation, welding capacity crosses conference pair Test specimen B to be measured produces impact, and using the welding rod of 2.5mm, it is 62A~87A that the size of current of the welding manner of small current spot welding is.
Fig. 3 is the structural representation of the constant temperature heating device of this utility model embodiment;Constant temperature heating device C concrete structures It is made up of thermostat 11, power line 12, test specimen B to be measured, heat sink 14, implant 15, heating rod 16 and installs fixture 17;Assembling Process:Thermostat 11 is connected on power supply by one end by power line 12, and power supply is powered to thermostat 11, and controls heating rod 16 heating-up temperature, the other end of thermostat 11 is connected with the thermostat temperature probe 8 in Fig. 2;Implant 15 is by heating rod 16 Support is fixed in heat sink 14, and heat sink 14 is tightly fixed to be bonded with ultralow temperature foil gauge D and to be measured by installs fixture 17 On test specimen B, wherein implant 15 is glass silk flosssilk wadding.
Fig. 4 is the block diagram of the heating process of this utility model embodiment.When constant temperature heating device works, thermostat thermometric Probe 8 measures the controller a of the temperature data Real-time Feedback to thermostat 11 of test specimen B to be measured, and then controller a adjusts heating The electrical power of rod 16 makes heating-up temperature remain at the temperature value with setting(135 DEG C and 165 DEG C), reach ultralow temperature foil gauge 135 DEG C of constant curing temperature and the mounting process of 165 DEG C of solidify afterwards temperature require.
Further, the stickup of low temperature foil gauge must use low temperature special type bonding agent, and the solidification of this bonding agent needs Heating reaches 135 DEG C of certain solidification temperature and keeps rising again afterwards for 2 hours high-temperature and reach 165 DEG C of solidify afterwards temperature and keeps 2 little When again Slow cooling reach and be fully cured.
Fig. 5 is that the structural diagrams of the on-plane surface foil gauge jacking block of another embodiment of this utility model are intended to, and Fig. 5 gives three Foil gauge jacking block is planted, is respectively 60 foil gauge jacking block X, 159 foil gauge jacking block Y, 426 foil gauge jacking block Z.Below in conjunction with Fig. 1 Illustrate with the label of Fig. 2, when using, the He of foil gauge jacking block 5 is pressed in by the pressure of spring 3 of elastic surface piezometer A On probe jacking block 7, so that foil gauge jacking block 5 and probe jacking block 7 can closely be fitted in test specimen B external surface of structural member to be measured On, and can play a part of to transmit solidifying pressure and effect well.
Fig. 6 is that the installs fixture structural diagrams of the on-plane surface test specimen to be measured of another embodiment of this utility model are intended to, and is installed Fixture E includes band steel circle E1, U-shaped band steel groove E2 and reinforcing rod E3;It is connected to be formed with U-shaped band steel groove E2 at the opening of band steel circle E1 Closed loop circle, 2 closed loop circles are linked into an integrated entity by 3 reinforcing rod E3;Constant temperature heating device C is arranged on the U of installs fixture E In type band steel groove E2.
Further, for the pipe under test of different tube diameters(That is test specimen B to be measured in Fig. 1)Upper ultralow temperature foil gauge D(Fig. 1 In)Installation, installs fixture E is carried out into Seriation Design can be on the pipeline of different size to meet constant temperature heating device C It is suitable for and requires;For the ultralow temperature foil gauge D of pipeline(In Fig. 1)Install, heating inside it must make perseverance using installs fixture E The effect that warm heater C is fixed wherein and can well heated.Constant temperature heating device C is loaded into the draw-in groove of Pipe installing fixture E It is interior, position to be installed in pipeline is then pushed, constant temperature heating device C is brought into close contact good so as to reach with inner-walls of duct during heating Heats.
Fig. 7 is that the ultralow temperature strain piece mounting device structure of the on-plane surface test specimen to be measured of another embodiment of this utility model is shown It is intended to, and illustrates with reference to the label in Fig. 1, Fig. 2 and Fig. 6, for the concrete assembling that the ultralow temperature foil gauge D of pipeline is installed Process description is as follows:Must fix constant temperature heating device C using installs fixture E in the inside heating of pipeline wherein simultaneously can be good The effect of heating.Constant temperature heating device C is loaded in the U-shaped band steel groove E2 of Pipe installing fixture E, is then pushed in pipeline and is waited to pacify Holding position, constant temperature heating device C is brought into close contact so as to reach good heats with inner-walls of duct during heating;By elastic table The pressure of spring 3 of surface pressure meter A is pressed on foil gauge jacking block 5 and probe jacking block 7, so that foil gauge jacking block 5 and probe jacking block 7 Can closely be fitted on test specimen B external surface of structural member to be measured, and can play a part of to transmit solidifying pressure and effect well.
Embodiment described above is only to express embodiment of the present utility model, and its description is more concrete and detailed, but and Therefore the restriction to utility model patent scope can not be interpreted as.It should be pointed out that to one of ordinary skill in the art For, on the premise of without departing from this utility model, some deformations, equal replacement can also be made, improved etc., these are belonged to Protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be defined by claims.

Claims (7)

1. the strain piece mounting device applied in a kind of engineering, including:Elastic surface piezometer(A), test specimen to be measured(B)And constant temperature Heater(C), it is characterised in that the test specimen to be measured(B)Side be glued ultralow temperature foil gauge(D), the test specimen to be measured (B)Opposite side by the welding manner of small current spot welding and the constant temperature heating device(C)Connection, the constant temperature heating device (C)With the elastic surface piezometer(A)It is electrically connected with, the elastic surface piezometer(A)It is crimped on the ultralow temperature strain Piece(D)Upper surface on;
The elastic surface piezometer(A), for controlling the ultralow temperature foil gauge(D)Solidifying pressure during installation, and feed back Test specimen to be measured(B)Heating-up temperature to the constant temperature heating device(C);
The constant temperature heating device(C), for controlling the ultralow temperature foil gauge(D)Heating-up temperature during installation is constant;
Wherein, the small current size of the welding manner of the small current spot welding is 25~35 times of core diameter;The ultralow temperature Foil gauge(D)For -100 DEG C of foil gauges used below.
2. the strain piece mounting device applied in a kind of engineering according to claim 1, it is characterised in that also include:
Installs fixture(E), the installs fixture(E)The upper band steel circle with opening(E1), the band steel circle(E1)Opening at With U-shaped band steel groove(E2)Connection forms closed loop circle, and 2 closed loop circles pass through reinforcing rod(E3)Link into an integrated entity;The heated at constant temperature Device(C)Installed in the installs fixture(E)U-shaped band steel groove(E2)It is interior.
3. the strain piece mounting device applied in a kind of engineering according to claim 1, it is characterised in that described to be tested Part(B)Side and the ultralow temperature foil gauge(D)It is glued using ultralow temperature bonded adhesives, the ultralow temperature foil gauge(D) Another surface on be coated with poly tetrafluoroethylene, the elastic surface piezometer(A)It is crimped on the poly tetrafluoroethylene Surface on;
Wherein, the ultralow temperature bonded adhesives is resistance to less than -100 DEG C of bonded adhesives.
4. the strain piece mounting device applied in a kind of engineering according to claim 1, it is characterised in that the elastic table Surface pressure meter(A)Including:Foil gauge pressure applies meter(A1)Apply to count with temperature probe pressure(A2);
The foil gauge pressure applies meter(A1), for controlling the ultralow temperature foil gauge(D)Solidifying pressure during installation, to super Low temperature foil gauge(D)Surface applies the adjustable solidifying pressure of 0.03~0.3MPa;
The temperature probe pressure applies meter(A2), for feeding back test specimen to be measured(B)Heating-up temperature fill to the heated at constant temperature Put(C), control ultralow temperature foil gauge(D)The solidification temperature for carrying out heated at constant temperature is 120~185 DEG C, and solidify afterwards temperature is 165 ℃;
Wherein, foil gauge pressure applies meter(A1)Apply to count with temperature probe pressure(A2)Centre distance be 50~70mm;
Wherein, the solidification temperature is test specimen to be measured(B)The temperature for reaching is heated to for the first time, and the solidify afterwards temperature is solidification temperature After degree is maintained 2 hours, test specimen to be measured(B)Secondary heating-up temperature.
5. the strain piece mounting device applied in a kind of engineering according to claim 1, it is characterised in that the constant temperature adds Thermal(C)Including:Thermostat(11), the thermostat(11)One end and thermostat temperature probe(8)Connection, the thermostat (11)The other end and heating rod(16)Connection, the heating rod(16)By implant(15)It is supported and fixed on heat sink(14) In, the heat sink(14)By installs fixture(17)It is fixed on the test specimen to be measured(B)On;
Wherein, the implant(15)For glass silk flosssilk wadding.
6. the strain piece mounting device applied in a kind of engineering according to claim 4, it is characterised in that the foil gauge Pressure applies meter(A1)It is upper that there is nut(1), the nut(1)One end is connected to shield by the welding manner of small current spot welding (2)On, the nut(1)With jackscrew(6)Threaded connection, the jackscrew(6)Through the shield(2), the jackscrew(6)Outside By way of socket and sleeve(4)Connection, the sleeve(4)Outside is by way of socket and spring(3)Connection, the sleeve (4)One end and foil gauge jacking block(5)Connection, the sleeve(4)The other end there is outwardly cylinder shoulder, spring(3)'s Upper and lower ends withstand on respectively sleeve(4)Cylinder shoulder and foil gauge jacking block(5)On;The foil gauge jacking block(5)It is crimped on ultralow temperature Foil gauge(D)Surface;
Wherein, the small current size of the welding manner of the small current spot welding is 25~35 times of core diameter.
7. the strain piece mounting device applied in a kind of engineering according to claim 4, it is characterised in that the thermometric is visited Head pressure applies meter(A2)It is upper that there is nut(1), the nut(1)One end is connected to shield by the welding manner of small current spot welding Cover(2)On, the nut(1)With jackscrew(6)Threaded connection, the jackscrew(6)Through the shield(2), the jackscrew(6)Outward Side is by way of socket and sleeve(4)Connection, the sleeve(4)Outside is by way of socket and spring(3)Connection, the set Cylinder(4)One end with probe jacking block(7)Connection, the sleeve(4)The other end has outwardly cylinder shoulder, spring(3)It is upper and lower Two ends withstand on respectively sleeve(4)Cylinder shoulder and probe jacking block(7)On;The probe jacking block(7)With groove, jacking block of popping one's head in(7) The constant temperature heating device is crimped onto by the groove(C)Thermostat temperature probe(8)On;
Wherein, the small current size of the welding manner of the small current spot welding is 25~35 times of core diameter.
CN201621159762.7U 2016-10-25 2016-10-25 Foil gage installation device who uses in engineering Active CN206095475U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107747580A (en) * 2017-08-22 2018-03-02 东莞市蓉工自动化科技有限公司 A kind of full-automatic loading machine of the foil gauge of terminal
CN109163962A (en) * 2018-08-24 2019-01-08 中国飞机强度研究所 It is a kind of to paste foil gauge to the preforming device of testpieces and its application method
CN111473723A (en) * 2020-04-30 2020-07-31 中国航发沈阳发动机研究所 Strain gauge program-controlled heating and pressurizing device with complex profile self-adaptability

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107747580A (en) * 2017-08-22 2018-03-02 东莞市蓉工自动化科技有限公司 A kind of full-automatic loading machine of the foil gauge of terminal
CN109163962A (en) * 2018-08-24 2019-01-08 中国飞机强度研究所 It is a kind of to paste foil gauge to the preforming device of testpieces and its application method
CN111473723A (en) * 2020-04-30 2020-07-31 中国航发沈阳发动机研究所 Strain gauge program-controlled heating and pressurizing device with complex profile self-adaptability

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