CN205262878U - Bending test machine in concrete material high temperature - Google Patents
Bending test machine in concrete material high temperature Download PDFInfo
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- CN205262878U CN205262878U CN201521067426.5U CN201521067426U CN205262878U CN 205262878 U CN205262878 U CN 205262878U CN 201521067426 U CN201521067426 U CN 201521067426U CN 205262878 U CN205262878 U CN 205262878U
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Abstract
The utility model provides a bending test machine in concrete material high temperature, including being used for the loading device who exerts pressure to the concrete sample, the displacement collection system who is used for heating the intensification equipment of concrete sample and is used for measuring the concrete sample deflection. The utility model discloses bending test machine in concrete material high temperature, with concrete test's intensification equipment with loading device ingenious combination be in the same place, and be aided with displacement collection system, the combined test system that can be used to bending test in the concrete sample high temperature has been formed, the intensification is cooperateed with with the loading, the loading and the synchronization of measurationing, the true environment of concrete in can simulated fire hazard high temperature, bending property through this bending test machine in concrete material high temperature carries out among test result that concrete material test reach and the fire accident and high temperature concrete actual is very close, high temperature and fire proof for research concrete material can provide the guarantee.
Description
Technical field
The utility model relates to a kind of concrete material testing machine for mechanical properties, especially a kind of testing machine for the material at high temperature rupture strengths such as normal concrete, fiber concrete, regeneration concrete, high-strength concrete and bent toughness.
Background technology
Concrete is the widest, the maximum construction material of consumption of purposes in engineering construction. In recent years, along with concrete material high-rise, towering, greatly across etc. the going deep into of particular service requirement and harsh and unforgiving environments application, concrete material high temperature fire resistance is proposed to new requirement, be badly in need of the high temperature fire resistance of corresponding high-temperature test facility with research and development concrete material. The temperature elevation system of existing concrete hot bend test equipment separates often with loading system, Bending Concrete performance test in proper high temperature can not be carried out, Bending Concrete performance test in Bending Concrete performance test after high temperature and approximate high temperature can only be carried out. After high temperature, Bending Concrete performance test is that concrete material is put in heating device and is heated, and reaches after desired value and stops heating, after concrete material is cooling, on loading equipemtn, loads. In approximate high temperature, Bending Concrete performance test is that concrete temperature in heating device reaches after desired value, will be put on Apparatus for Bending at low-temp and load in the concrete material of the condition of high temperature immediately with instruments such as special high temperature-resistant pliers. In practical application, find, no matter be bend test after high temperature, or bend test in approximate high temperature, in the concrete high temperature of gained, in bend test result and high temperature of fire, the bending property of concrete reality all has larger difference.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Utility model content
Technical staff, through long research of technique, finds to produce the reason of the problems referred to above finally. concrete hot bend test result is with the reason that the bending property of concrete reality in high temperature of fire differs greatly: in concrete high temperature, the temperature elevation system of bend test equipment separates with loading system, can not realize and heating up and working in coordination with of loading, when loading the temperature of concrete sample always in various degree lower than heating time target temperature, concrete sample is in temperature-fall period, outside cooling is fast, internal cooling is slow, thereby produce thermal stress gradient, cause the stress damage of concrete material, and then make concrete actual flexion performance in obtained experimental result and high temperature of fire produce difference. for Bending Concrete performance test after high temperature, when loading, the temperature of concrete sample has been down to normal temperature, and thermal stress damage is very obvious. for Bending Concrete performance test in approximate high temperature, although concrete sample loads after taking out from heating device immediately, temperature declines less, but the environment temperature during due to loading is far below the temperature in heating device, the thermal stress gradient of concrete sample is larger, and thermal stress damage is very important equally. in addition, in the process of research and development, technical staff also runs into a technical problem, and the displacement meter that measures concrete deformation amount is put into heating device and can be burned.
In addition, according to the existing relevant test methods standards and norms of China, concrete material performance (for example, compression strength) be to determine according to the result of the test of lower 3 concrete samples of the same terms, therefore, must solve 3 problems that identical concrete sample heats up and loads under same high temperature environment.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: Apparatus for Bending at low-temp in concrete material high temperature, comprises loading equipemtn for concrete sample is exerted pressure, for heating the heating device of concrete sample and for measuring the displacement acquisition device of concrete sample bending deformation quantity;
Described loading equipemtn comprises base, be fixed on the column on this base, be located at the crossbeam that moves up and down and locate on described column and along described column, be fixed on the top board of crossbeam bottom, be fixed on the high temperature resistant seaming chuck of top board bottom, be located at the lower platen on described base, be located at the high temperature resistant push-down head on described lower platen, be located at high temperature resistant cushion block on described push-down head and for described lower platen being applied to the upwards loading power source of active force, the lower end of described high temperature resistant seaming chuck two strip convex parts for being exerted pressure downwards in concrete sample middle part that be arranged in parallel, the upper end of described high temperature resistant cushion block two strip convex parts for upwards being exerted pressure in concrete sample both ends that be arranged in parallel, strip convex part on strip convex part on described high temperature resistant seaming chuck and described high temperature resistant cushion block be arranged in parallel and is jointly formed for concrete sample to apply four fulcrums of active force,
Described heating device comprises high temperature furnace bracing frame, is located at the high temperature furnace on this high temperature furnace bracing frame and is located at the heater in high temperature furnace, described high temperature furnace is between described top board and described lower platen, the top board of described high temperature furnace arranges the upper perforation that penetrates high temperature furnace inside for described high temperature resistant seaming chuck downwards, the base plate of described high temperature furnace arranges the lower perforation that upwards penetrates high temperature furnace inside for described high temperature resistant push-down head, and described upper perforation and described lower perforation in the vertical direction are just to arranging;
Described displacement acquisition device comprises three displacement meters being located on described high temperature resistant seaming chuck, gather the displacement meter collecting cassette of the information of three described displacement meters, two end guide rod structures and middle part guide rod structure, the centre bore of the described high temperature resistant seaming chuck that the high temperature resistant guide rod in the vertical direction of described middle part guide rod structure slides through gos deep in high temperature furnace, described in two, the high temperature resistant guide rod of end guide rod structure gos deep into downwards in high temperature furnace from the both sides of described high temperature resistant seaming chuck respectively, high temperature furnace top is provided with the pilot hole passing for each described high temperature resistant guide rod, be located at the described displacement meter of high temperature resistant seaming chuck both sides and corresponding described end guide rod structure top interference fit for measuring the deflection at concrete sample two ends, be located at described displacement meter on described top board and the guide rod structure top interference fit of described middle part for measuring the deflection at concrete sample middle part.
Preferably, described high temperature resistant seaming chuck comprises the seaming chuck bearing being fixedly arranged on described top board and is fixedly arranged on the seaming chuck body on described seaming chuck bearing, described high temperature resistant push-down head comprises the push-down head bearing being fixedly arranged on described lower platen and is fixedly arranged on the push-down head body on described push-down head bearing, and corresponding described strip convex part is positioned on described seaming chuck body.
Preferably, described column top is provided with screw thread, and the two ends on described crossbeam are rotated and are provided with nut, and described crossbeam is provided with the motor for driving nut rotation described in two, and described crossbeam is by realizing and move up and down and locate with the threaded engagement of described column.
Preferably, described heating device also comprises temperature control system and be located at the temperature sensor in described high temperature furnace, and described heater is Elema, and described temperature control system is connected with described temperature sensor sampling, and described temperature control system is electrically connected with described Elema.
Preferably, described end guide rod structure comprises on the bottom surface of being located at described seaming chuck bearing and has the spring base of stage clip and the described high temperature resistant guide rod of described stage clip bottom is located at top, the outside of described spring base is in axial direction provided with guide slit, the upper end of described high temperature resistant guide rod arranges horizontal pressing plate, described horizontal pressing plate slide be plugged in guide slit and this horizontal pressing plate for the detection portion top interference fit of corresponding described displacement meter, described in two high temperature resistant guide rod respectively with high temperature resistant push-down head on described strip convex part just to arranging; Described middle part guide rod structure comprises the lever being rotatably connected on described high temperature resistant seaming chuck, described high temperature resistant guide rod and the extension spring of being located at lever inner end, the upper/lower terminal of described extension spring is individually fixed on lever outer end and described top board, the detection portion top interference fit of described lever outer end and corresponding described displacement meter.
Preferably, also comprise that thrust unit comprises on the plate inner surface of being located at described high temperature furnace and with the vertically disposed high temperature resistant guide rail of fire door, sliding is inserted in the catch bar on high temperature furnace sidewall and drives the reciprocating power source of described catch bar, the bottom of described high temperature resistant cushion block is provided with the chute being slidably matched with described high temperature resistant guide rail, and described catch bar is used for promoting described high temperature resistant cushion block and slides on described high temperature resistant slide rail.
Preferably, described power source comprises electric machine support and is located at the motor on electric machine support, described electric machine support comprises two horizontally disposed leading screws that are arranged at described high temperature furnace rear side, and motor drives and is connected with the screw on described leading screw, the other rule that is provided with of leading screw.
Preferably, also comprise computer, described computer is connected with described displacement meter collecting cassette information for gathering the displacement signal of displacement meter collecting cassette, and described computer and testing machine control box control connection are to apply to described lower platen the load signal that active force upwards acceptance test machine control box feed back by testing machine control box controlled loading power source.
The relative prior art of the utility model has substantive distinguishing features and progress, specifically, Apparatus for Bending at low-temp in concrete material high temperature, by the heating device of concrete test with loading equipemtn is ingenious combines, and be aided with displacement acquisition device, form the comprehensive test system that can be used for bend test in concrete sample high temperature, high temperature furnace is located between top board and lower platen by high temperature furnace bracing frame, on being provided with on high temperature furnace, lower perforation and pilot hole etc., make high temperature resistant on, push-down head and high temperature resistant guide rod energy deep enough high temperature furnace inside, realize and having heated up and synchronizeing of loading, concrete true environment in simulated fire high temperature truly, measure respectively the length travel amount of concrete sample two fulcrums and central spot, solved well the problem that can not use displacement meter to measure concrete sample distortion in hot environment, the bending property of carrying out concrete reality in result of the test that in concrete material high temperature, bend test draws and high temperature of fire by Apparatus for Bending at low-temp in this concrete material high temperature is very approaching, for high temperature and the fire resistance of research concrete material provide guarantee.
Further, column top is provided with screw thread, and crossbeam is by realizing and move up and down and locate with the threaded engagement of column, simple in structure, very easy to use.
Further, heating device also comprises temperature control system and is located at the temperature sensor in high temperature furnace, design temperature automatically maintenance design temperature according to demand.
Further, thrust unit, high temperature resistant cushion block in high temperature furnace can be moved forward and backward, thereby reach once the object that heats up, successively 3 concrete sample high temperature is loaded, met the requirement of 3 test specimens of 1 group of bend test that specify in mechanical performance of concrete test method standard.
Further, guide rod structure is converted into the movement of high temperature resistant guide rod the movement of displacement meter detection portion dexterously, and displacement meter can be located at outside high temperature furnace, prevents that displacement meter is subject to high temperature damage or be subject to temperatures involved and affect certainty of measurement.
Further, power source comprises electric machine support and is located at the motor on electric machine support, electric machine support comprises two horizontally disposed leading screws that are arranged at described high temperature furnace rear side, motor drives and is connected with the screw on described leading screw, motor is mobile very convenient on leading screw, the other rule, the distance moving for monitoring motor and catch bar of being provided with of leading screw.
Further, computer is connected with displacement meter collecting cassette information for gathering the displacement signal of displacement meter collecting cassette, and computer and testing machine control box control connection are to apply to lower platen the load signal that active force upwards acceptance test machine control box feed back by testing machine control box controlled loading power source.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of Apparatus for Bending at low-temp in high temperature in the utility model embodiment.
Fig. 2 is the side-looking structural representation of Apparatus for Bending at low-temp in high temperature in the utility model embodiment.
Fig. 3 is the enlarged drawing at Figure 1A place.
Detailed description of the invention
Below by detailed description of the invention, the technical solution of the utility model is described in further detail.
Apparatus for Bending at low-temp in concrete material high temperature, as shown in FIG. 1 to 3, comprise loading equipemtn for concrete sample is exerted pressure, for heating the heating device of concrete sample, for measuring the displacement acquisition device of concrete sample deflection and for promoting the thrust unit of concrete sample to the motion of fire door direction, loading equipemtn comprises base 6, be fixed on the column 7 on this base 6, be located at the crossbeam 9 that moves up and down and locate on column 7 and along column 7, be fixed on the top board 10 of crossbeam bottom, be fixed on the high temperature resistant seaming chuck of top board bottom, be located at the lower platen 11 on base 6, be located at the high temperature resistant push-down head on lower platen 11, be located at high temperature resistant cushion block 18 on described push-down head and for lower platen 11 being applied to the upwards loading power source of active force, the lower end of high temperature resistant seaming chuck two strip convex parts 32 for being exerted pressure downwards in concrete sample middle part that be arranged in parallel, the upper end of high temperature resistant cushion block 18 two strip convex parts 21 for upwards being exerted pressure in concrete sample both ends that be arranged in parallel, strip convex part 21 on strip convex part 32 and high temperature resistant cushion block 18 on high temperature resistant seaming chuck be arranged in parallel and is jointly formed for concrete sample 20 to apply four fulcrums of active force, column 7 upper ends are connected to increase stability by cross bar 8,1 column 7 tops are provided with screw thread, two ends on crossbeam 9 are rotated and are provided with nut (not shown), crossbeam 9 is provided with the motor (not shown) for driving nut rotation described in two, and crossbeam 9 is by realizing and move up and down and locate with the threaded engagement of column 7. high temperature resistant seaming chuck comprises the seaming chuck bearing 16 being fixedly arranged on top board 10 and is fixedly arranged on the seaming chuck body 14 on seaming chuck bearing 16, high temperature resistant push-down head comprises the push-down head bearing 17 that is fixedly arranged on lower platen 11, is fixedly arranged on the push-down head body 15 on push-down head bearing 17, strip convex part lays respectively on seaming chuck body 14 and high temperature resistant cushion block 18, high temperature resistant seaming chuck and high temperature resistant push-down head are made by silicon nitride combined silicon carbide material, have the excellent properties such as high rigidity, high strength, high temperature resistant and high temperature creep-resisting, heating device comprises high temperature furnace bracing frame 2, be located at high temperature furnace 1 on this high temperature furnace bracing frame 2, be located at heater, the temperature control system 5 in high temperature furnace and be located at the temperature sensor 4 in high temperature furnace, heater is Elema, in the present embodiment, be specially U-shaped Elema 3, temperature control system 5 is connected with temperature sensor 4 samplings, temperature control system 5 is electrically connected with U-shaped Elema, temperature sensor 4 is corundum thermocouple, the front end of high temperature furnace body of heater has fire door 28, be used for taking, putting concrete sample 20, fire door has 2 small sircle holes, observes situation in stove during for heating and test. high temperature furnace 1 is between top board 10 and lower platen 17, the top board of high temperature furnace arranges the upper perforation that penetrates high temperature furnace inside for high temperature resistant seaming chuck downwards, the base plate of high temperature furnace arranges the lower perforation that upwards penetrates high temperature furnace inside for high temperature resistant push-down head, and upper perforation and lower perforation in the vertical direction are just to arranging, displacement acquisition device comprises three displacement meters being located on high temperature resistant seaming chuck, gather the displacement meter collecting cassette 23 of the information of three displacement meters, two end guide rod structures and middle part guide rod structure, the centre bore of the high temperature resistant seaming chuck that high temperature resistant guide rod 35 in the vertical directions of middle part guide rod structure slide through gos deep in high temperature furnace 1, the high temperature resistant guide rod 24 of two end guide rod structures gos deep into downwards in high temperature furnace 1 from the both sides of high temperature resistant seaming chuck respectively, high temperature furnace top is provided with for each high temperature resistant guide rod 24, 35 pilot holes that pass, the displacement meter 22 of being located at high temperature resistant seaming chuck both sides with corresponding end guide rod structure top interference fit for measuring the deflection at concrete sample two ends, be located at displacement meter on top board 10 33 with middle part guide rod structure top interference fit for measuring the deflection at concrete sample middle part. end guide rod structure comprises being located at and comprises on the bottom surface of being located at seaming chuck bearing 16 and have the spring base 30 of stage clip 29 and the high temperature resistant guide rod 24 of stage clip bottom is located at top, the outside of spring base 30 is in axial direction provided with guide slit, two high temperature resistant guide rods 24 respectively with high temperature resistant push-down head on strip convex part just to arrange, the upper end of high temperature resistant guide rod 24 arranges horizontal pressing plate 31, laterally pressing plate 31 slide be plugged in guide slit and this horizontal pressing plate 31 for the detection portion top interference fit of corresponding displacement meter 22, concrete, displacement meter is located on the sidewall of seaming chuck bearing 16 both sides, middle part guide rod structure comprises the lever 34 being rotatably connected on high temperature resistant seaming chuck, the high temperature resistant guide rod 35 of being located at lever inner end and extension spring 36, the upper/lower terminal of extension spring 36 is individually fixed on lever outer end and top board 10, the detection portion top interference fit of lever outer end and corresponding displacement meter 33, displacement meter 22 is grating displacement meter. thrust unit comprise on the plate inner surface of being located at high temperature furnace 1 and with the vertically disposed high temperature resistant guide rail 19 of fire door 28, slip is inserted in the catch bar 25 on high temperature furnace sidewall and drives the reciprocating power source of catch bar 25, the bottom of high temperature resistant cushion block 18 is provided with the chute being slidably matched with high temperature resistant guide rail 19, catch bar is used for promoting high temperature resistant cushion block 18 and slides on high temperature resistant slide rail 19, power source comprises electric machine support 27 and is located at the motor 26 on electric machine support 27, electric machine support comprises two horizontally disposed leading screws that are arranged at high temperature furnace rear side, motor drives and is connected with the screw on described leading screw, the other rule that is provided with of leading screw. computer is connected the displacement signal for gathering displacement meter collecting cassette with displacement meter collecting cassette information, computer 13 is with testing machine control box 12 control connections to apply to lower platen 17 the load signal that active force upwards acceptance test machine control box 12 feed back by testing machine control box 12 controlled loading power sources, and loading power source is hydraulic cylinder.
Apparatus for Bending at low-temp in the concrete material high temperature of the present embodiment, by the heating device of concrete test with loading equipemtn is ingenious combines, and be aided with displacement acquisition device, form the comprehensive test system that can be used for bend test in concrete sample high temperature, high temperature furnace is located between top board and lower platen by high temperature furnace bracing frame, on being provided with on high temperature furnace, lower perforation and pilot hole, make high temperature resistant on, push-down head and high temperature resistant guide rod energy deep enough high temperature furnace inside, realize and having heated up and synchronizeing of loading, concrete true environment in can simulation high temperature of fire, the bending property of carrying out concrete reality in result of the test that in concrete material high temperature, bend test draws and high temperature of fire by Apparatus for Bending at low-temp in this concrete material high temperature is very approaching, for high temperature and the fire resistance of research concrete material provide guarantee. column top is provided with screw thread, and crossbeam is by realizing and move up and down and locate with the threaded engagement of column, simple in structure, very easy to use. heating device also comprises temperature control system and is located at the temperature sensor in high temperature furnace, design temperature automatically maintenance design temperature according to demand. thrust unit, high temperature resistant cushion block in high temperature furnace can be moved forward and backward, thereby reach the object so that 3 concrete sample high temperature are loaded successively that once heats up, met the requirement of 3 test specimens of 1 group of bend test that specify in mechanical performance of concrete test method standard. guide rod structure is converted into the movement of high temperature resistant guide rod the movement of displacement meter detection portion dexterously, and displacement meter can be located at outside high temperature furnace, prevents that displacement meter is subject to high temperature damage or be subject to temperatures involved and affect certainty of measurement. power source comprises electric machine support and is located at the motor on electric machine support, electric machine support comprises two horizontally disposed leading screws that are arranged at described high temperature furnace rear side, motor drives and is connected with the screw on described leading screw, motor is mobile very convenient on leading screw, the other rule, the distance moving for monitoring motor and catch bar of being provided with of leading screw. computer is connected with displacement meter collecting cassette information for gathering the displacement signal of displacement meter collecting cassette, and computer and testing machine control box control connection are to apply to lower platen the load signal that active force upwards acceptance test machine control box feed back by testing machine control box controlled loading power source.
In other embodiments, different from above-described embodiment is, crossbeam can also be fixed by jackscrew, high temperature resistant seaming chuck and high temperature resistant push-down head column integrative-structure, end guide rod structure be high temperature resistant guide rod and now the detection portion of the displacement meter of high temperature resistant seaming chuck both sides directly connect high temperature resistant guide rod; In other embodiments, different from above-described embodiment, power source can also be electric pushrod or pneumatic cylinder etc.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement detailed description of the invention of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (8)
1. Apparatus for Bending at low-temp in concrete material high temperature, is characterized in that: comprise loading equipemtn for concrete sample is exerted pressure, for heating the heating device of concrete sample and for measuring the displacement acquisition device of concrete sample bending deformation quantity;
Described loading equipemtn comprises base, be fixed on the column on this base, be located at the crossbeam that moves up and down and locate on described column and along described column, be fixed on the top board of crossbeam bottom, be fixed on the high temperature resistant seaming chuck of top board bottom, be located at the lower platen on described base, be located at the high temperature resistant push-down head on described lower platen, be located at high temperature resistant cushion block on described push-down head and for described lower platen being applied to the upwards loading power source of active force, the lower end of described high temperature resistant seaming chuck two strip convex parts for being exerted pressure downwards in concrete sample middle part that be arranged in parallel, the upper end of described high temperature resistant cushion block two strip convex parts for upwards being exerted pressure in concrete sample both ends that be arranged in parallel, strip convex part on strip convex part on described high temperature resistant seaming chuck and described high temperature resistant cushion block be arranged in parallel and is jointly formed for concrete sample to apply four fulcrums of active force,
Described heating device comprises high temperature furnace bracing frame, is located at the high temperature furnace on this high temperature furnace bracing frame and is located at the heater in high temperature furnace, described high temperature furnace is between described top board and described lower platen, the top board of described high temperature furnace arranges the upper perforation that penetrates high temperature furnace inside for described high temperature resistant seaming chuck downwards, the base plate of described high temperature furnace arranges the lower perforation that upwards penetrates high temperature furnace inside for described high temperature resistant push-down head, and described upper perforation and described lower perforation in the vertical direction are just to arranging;
Described displacement acquisition device comprises three displacement meters being located on described high temperature resistant seaming chuck, gather the displacement meter collecting cassette of the information of three described displacement meters, two end guide rod structures and middle part guide rod structure, the centre bore of the described high temperature resistant seaming chuck that the high temperature resistant guide rod in the vertical direction of described middle part guide rod structure slides through gos deep in high temperature furnace, described in two, the high temperature resistant guide rod of end guide rod structure gos deep into downwards in high temperature furnace from the both sides of described high temperature resistant seaming chuck respectively, high temperature furnace top is provided with the pilot hole passing for each described high temperature resistant guide rod, be located at the described displacement meter of high temperature resistant seaming chuck both sides and corresponding described end guide rod structure top interference fit for measuring the deflection at concrete sample two ends, be located at described displacement meter on described top board and the guide rod structure top interference fit of described middle part for measuring the deflection at concrete sample middle part.
2. Apparatus for Bending at low-temp in concrete material high temperature according to claim 1, it is characterized in that: described high temperature resistant seaming chuck comprises the seaming chuck bearing being fixedly arranged on described top board and is fixedly arranged on the seaming chuck body on described seaming chuck bearing, described high temperature resistant push-down head comprises the push-down head bearing being fixedly arranged on described lower platen and is fixedly arranged on the push-down head body on described push-down head bearing, and corresponding described strip convex part is positioned on described seaming chuck body.
3. Apparatus for Bending at low-temp in concrete material high temperature according to claim 1, it is characterized in that: described column top is provided with screw thread, two ends on described crossbeam are rotated and are provided with nut, described crossbeam is provided with the motor for driving nut rotation described in two, and described crossbeam is by realizing and move up and down and locate with the threaded engagement of described column.
4. Apparatus for Bending at low-temp in concrete material high temperature according to claim 1, it is characterized in that: described heating device also comprises temperature control system and is located at the temperature sensor in described high temperature furnace, described heater is Elema, described temperature control system is connected with described temperature sensor sampling, and described temperature control system is electrically connected with described Elema.
5. Apparatus for Bending at low-temp in concrete material high temperature according to claim 1, it is characterized in that: described end guide rod structure comprises on the bottom surface of being located at described seaming chuck bearing and has the spring base of stage clip and the described high temperature resistant guide rod of described stage clip bottom is located at top, the outside of described spring base is in axial direction provided with guide slit, the upper end of described high temperature resistant guide rod arranges horizontal pressing plate, described horizontal pressing plate slide be plugged in guide slit and this horizontal pressing plate for the detection portion top interference fit of corresponding described displacement meter, described in two high temperature resistant guide rod respectively with high temperature resistant push-down head on described strip convex part just to arrange, described middle part guide rod structure comprises the lever being rotatably connected on described high temperature resistant seaming chuck, described high temperature resistant guide rod and the extension spring of being located at lever inner end, the upper/lower terminal of described extension spring is individually fixed on lever outer end and described top board, the detection portion top interference fit of described lever outer end and corresponding described displacement meter.
6. Apparatus for Bending at low-temp in concrete material high temperature according to claim 1, it is characterized in that: also comprise that thrust unit comprises on the plate inner surface of being located at described high temperature furnace and with the vertically disposed high temperature resistant guide rail of fire door, sliding is inserted in the catch bar on high temperature furnace sidewall and drives the reciprocating power source of described catch bar, the bottom of described high temperature resistant cushion block is provided with the chute being slidably matched with described high temperature resistant guide rail, and described catch bar is used for promoting described high temperature resistant cushion block and slides on described high temperature resistant slide rail.
7. Apparatus for Bending at low-temp in concrete material high temperature according to claim 6, it is characterized in that: described power source comprises electric machine support and is located at the motor on electric machine support, described electric machine support comprises two horizontally disposed leading screws that are arranged at described high temperature furnace rear side, motor drives and is connected with the screw on described leading screw, the other rule that is provided with of leading screw.
8. Apparatus for Bending at low-temp in concrete material high temperature according to claim 7, it is characterized in that: also comprise computer, described computer is connected with described displacement meter collecting cassette information for gathering the displacement signal of displacement meter collecting cassette, and described computer and testing machine control box control connection are to apply to described lower platen the load signal that active force upwards acceptance test machine control box feed back by testing machine control box controlled loading power source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521067426.5U CN205262878U (en) | 2015-12-21 | 2015-12-21 | Bending test machine in concrete material high temperature |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521067426.5U CN205262878U (en) | 2015-12-21 | 2015-12-21 | Bending test machine in concrete material high temperature |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547856A (en) * | 2015-12-21 | 2016-05-04 | 郑州大学 | Concrete material high temperature bending test machine and high temperature bending test method |
| CN109520821A (en) * | 2018-12-14 | 2019-03-26 | 南京工程学院 | A kind of steel and concrete structure test specimen Special bending, scissor test loading device and its loading method |
| CN112326457A (en) * | 2020-11-23 | 2021-02-05 | 海隆石油产品技术服务（上海）有限公司 | Coating bending test device |
-
2015
- 2015-12-21 CN CN201521067426.5U patent/CN205262878U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547856A (en) * | 2015-12-21 | 2016-05-04 | 郑州大学 | Concrete material high temperature bending test machine and high temperature bending test method |
| CN105547856B (en) * | 2015-12-21 | 2018-08-24 | 河南工程学院 | Bend test method in Apparatus for Bending at low-temp and high temperature in concrete material high temperature |
| CN109520821A (en) * | 2018-12-14 | 2019-03-26 | 南京工程学院 | A kind of steel and concrete structure test specimen Special bending, scissor test loading device and its loading method |
| CN109520821B (en) * | 2018-12-14 | 2024-02-09 | 南京工程学院 | Special bending and shearing test loading device and loading method for steel-concrete structure test piece |
| CN112326457A (en) * | 2020-11-23 | 2021-02-05 | 海隆石油产品技术服务（上海）有限公司 | Coating bending test device |
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