CN212780366U - Cement mortar fluidity tester - Google Patents

Abstract

The utility model relates to a cement mortar fluidity tester, which comprises a jump table, a truncated cone round die and a controller for controlling the operation of the jump table, wherein the jump table comprises a frame and a platform, the platform is positioned at the top of the frame, the frame is provided with a driving motor for driving the platform to vibrate in a reciprocating manner along the vertical direction, and the driving motor is connected with the controller; the truncated cone circle mould includes curved first circle template and curved second circle template, first circle template is the same with the size of second circle template, one side that first circle template and second circle template carried on the back mutually all is equipped with the mounting that makes first circle template and second circle template keep away from each other or be close to. This application is convenient for the separation of truncated cone circle mould and cement mortar, has the effect that improves the stability of test, can detect environmental parameter simultaneously, times the vibration time of platform, the record and the collection of the experimental data of being convenient for.

Description

Cement mortar fluidity tester

Technical Field

The application relates to the technical field of material fluidity test, in particular to a cement mortar fluidity tester.

Background

The cement mortar fluidity tester is also called as a cement fluidity electric jump table, is used for fluidity tests of a new standard GB/T2419-2005 'cement mortar fluidity testing method' released in 2005, is a uniquely specified instrument of the standard, and has the working preparation process as follows: the mixed mortar is quickly loaded into a test mould in two layers, the first layer is loaded to the position about 2/3 th of the truncated cone round mould, a knife is used for respectively dividing the mortar in two mutually vertical directions for 5 times, a tamper is used for uniformly tamping the mortar from the edge to the center for 15 times, then the second layer of mortar is loaded, the mortar is loaded to the position about 20mm higher than the truncated cone round mould, a knife is used for respectively dividing the mortar in two mutually vertical directions for 5 times, the tamper is used for uniformly tamping the mortar from the edge to the center for 10 times, after tamping, the mortar is slightly higher than the truncated cone round mould, the tamping depth is that the height of the mortar is firstly tamped to 1/2 th of the mortar, and the tamping of the second layer does not exceed the surface of the tamped bottom layer.

Chinese patent application publication No. CN105136612A discloses a cement mortar fluidity testing mold, which comprises a lower truncated cone circular mold, an upper truncated cone circular mold, a lower mold sleeve and an upper mold sleeve, wherein the lower truncated cone circular mold is clamped with the upper truncated cone circular mold to form a truncated cone circular mold, the lower mold sleeve is clamped with the upper mold sleeve, and the lower mold sleeve is clamped with the upper truncated cone circular mold.

But after cement mortar placed the completion, just need take off lower truncated cone circular mould from cement mortar, because lower truncated cone circular mould encircles on cement mortar, so at the removal in-process, lower truncated cone circular mould lower extreme still is in the state of encircling in cement mortar, and truncated cone circular mould rocks slightly like this and will use on cement mortar to make cement mortar take place to deform or even empty, the stability of test is low.

SUMMERY OF THE UTILITY MODEL

Lead to cement mortar to take place the problem that deformation influences test stability easily when taking off from cement mortar in order to improve the truncated cone circular mould, this application provides a cement mortar mobility apparatus.

The application provides a cement mortar fluidity apparatus adopts following technical scheme:

a cement mortar fluidity tester comprises a jump table, a truncated cone round die and a controller for controlling the jump table to operate, wherein the jump table comprises a rack and a platform, the platform is positioned at the top of the rack, a driving motor for driving the platform to vibrate in a reciprocating manner along the vertical direction is arranged on the rack, and the driving motor is connected with the controller; the truncated cone circle mould includes curved first circle template and curved second circle template, first circle template is the same with the size of second circle template, one side that first circle template and second circle template carried on the back mutually all is equipped with the mounting that makes first circle template and second circle template keep away from each other or be close to.

By adopting the technical scheme, when the fluidity of the cement mortar is tested, the fixing part is controlled to enable the first circular template and the second circular template to be abutted to form a truncated cone circular mold, the tested cement mortar is placed into the truncated cone circular mold and then is tamped, the fixing part is controlled to enable the first circular template and the second circular template to be separated, meanwhile, the driving motor is controlled to be started through the controller, the platform is driven to shake in a reciprocating mode for a fixed time along the vertical direction to enable the cement mortar to be spread out, and the fluidity of the cement mortar is measured on the platform; divide into first circle template and second circle template with the truncated cone circle mould to through the separation of two mounting control first circle template and second circle template, can not produce the effort to cement mortar when making first circle template and second circle template separation, reach the effect that improves the stability of test, be convenient for simultaneously the separation of truncated cone circle mould and cement mortar.

Preferably, the fixing part comprises an extension plate, a vertical plate and cylinders, one end of the extension plate is connected with the edge of the platform, the top of the other end of the extension plate is connected with the bottom of the vertical plate, the cylinders are arranged in the horizontal direction and connected with the vertical plate, the cylinders are connected with the controller, and piston rods of the cylinders of the two fixing parts penetrate through the vertical plate and are connected with the first circular template and the second circular template respectively.

Through adopting above-mentioned technical scheme, through the separation and the combination of first circle template of controller control and second circle template, promote the separation convenience of truncated cone circle mould and cement mortar, can not produce the effort to cement mortar when making first circle template and second circle template separation simultaneously, reach the effect that improves the stability of test.

Preferably, the top of the truncated cone circular die is connected with a die sleeve, and the die sleeve is cylindrical and the inner diameter of the die sleeve is reduced from top to bottom in sequence.

Through adopting above-mentioned technical scheme, the die sleeve can carry on spacingly to the cement mortar that surpasss the truncated cone circular mould, avoids surpassing the cement mortar of truncated cone circular mould and scatters on the platform, influences going on of follow-up experiment.

Preferably, the top of the truncated cone circular mold is provided with an annular clamping plate, and the bottom of the mold sleeve is provided with an annular clamping groove which is in clamping fit with the annular clamping plate.

Through adopting above-mentioned technical scheme, promote the stability that die sleeve and truncated cone circle mould are connected.

Preferably, be equipped with circular sleeve along vertical direction in the frame, sliding connection has the vibrations post in the circular sleeve, the top and the platform bottom fixed connection of vibrations post, driving motor's output shaft sets up and coaxial cover is equipped with the cam along the horizontal direction, the side top of cam and the bottom butt of vibrations post

Through adopting above-mentioned technical scheme, the controller control driving motor rotates the number of turns of predetermineeing for the number of times that the platform vibrates from top to bottom and corresponds makes the test experiment go on smoothly.

Preferably, the bottom of the vibration column is rotatably connected with a bearing, and the bottom of the bearing is abutted against the top of the side face of the cam.

Through adopting above-mentioned technical scheme, the bearing has effectively reduced vibrations post and cam butt pivoted wearing and tearing, lifting means's life.

Preferably, the controller is connected with a temperature and humidity sensor and a temperature and humidity display, and the temperature and humidity display is connected with the temperature and humidity sensor.

By adopting the technical scheme, the environmental parameters of a laboratory can be acquired during the experiment, so that the tester can conveniently record the environmental parameters, and meanwhile, the test experiment is avoided in places which do not conform to the experiment requirement environment.

Preferably, the controller is provided with a timing unit for counting the working time of the driving motor, and the controller is provided with a timing display connected with the timing unit.

Through adopting above-mentioned technical scheme, the timing unit can take notes the vibration time of platform, and the experimenter of being convenient for makes statistics of, reduces the degree of difficulty and the work load of experimenter operating instrument, reduces the experiment degree of difficulty and promotes the precision of experimental data.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the fluidity of the cement mortar is tested, the fixing part is controlled to enable the first circular template and the second circular template to be abutted to form a truncated cone circular mold, the tested cement mortar is placed into the truncated cone circular mold and then is tamped, the fixing part is controlled to enable the first circular template and the second circular template to be separated, meanwhile, the driving motor is controlled to be started through the controller, the platform is driven to shake for a fixed number of times in a reciprocating mode along the vertical direction, the cement mortar is spread out, and the fluidity of the cement mortar is measured by measuring the cement mortar on the platform; the truncated cone circular mold is divided into a first circular mold plate and a second circular mold plate, and the first circular mold plate and the second circular mold plate are controlled to be separated through two fixing pieces, so that acting force cannot be generated on cement mortar when the first circular mold plate and the second circular mold plate are separated, the effect of improving the stability of the test is achieved, and the separation of the truncated cone circular mold and the cement mortar is facilitated;

2. the cement mortar exceeding the truncated cone circular mould can be limited by arranging the mould sleeve, so that the cement mortar exceeding the truncated cone circular mould is prevented from scattering on the platform to influence the subsequent experiment;

3. the timing unit can show at the vibration time of record platform and through timing display, and the experimenter of being convenient for makes statistics of, reduces the degree of difficulty and the work load of experimenter operating instrument, reduces the experiment degree of difficulty and promotes the precision of experimental data.

Drawings

FIG. 1 is a schematic view of the overall structure of a cement mortar fluidity tester in the embodiment of the present application;

FIG. 2 is a schematic structural diagram of a diving table in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a truncated cone circular mold in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a die sleeve in an embodiment of the present application;

fig. 5 is a system block diagram of a cement mortar fluidity tester in the embodiment of the present application.

Description of reference numerals: 1. jumping over the table; 11. a frame; 12. a platform; 13. a circular sleeve; 14. vibrating the column; 15. a bearing; 16. a drive motor; 17. a cam; 2. a truncated cone circular die; 21. a first circular template; 211. clamping the convex block; 22. a second circular template; 221. clamping the groove; 23. an annular clamping plate; 24. an annular groove; 3. a fixing member; 31. an extension plate; 32. a vertical plate; 33. a cylinder; 4. a controller; 41. a temperature and humidity sensor; 42. a temperature and humidity display; 43. a timing unit; 44. a timing display; 5. die sleeve; 51. and an annular clamping groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses cement mortar fluidity apparatus. Referring to fig. 1, a cement mortar fluidity tester comprises a diving table 1, a truncated cone circular mold 2 and a controller 4 for controlling the operation of the diving table 1. When the fluidity of the cement mortar is tested, the truncated cone circular mould 2 is flatly placed on the diving table 1, the tested cement mortar is placed into the truncated cone circular mould 2 and then is tamped, and the controller 4 controls the start of the test to test the fluidity of the cement mortar.

Referring to fig. 1 and 2, the diving table 1 comprises a frame 11 and a platform 12, wherein the platform 12 is located at the top of the frame 11, a driving motor 16 for driving the platform 12 to vibrate back and forth in the vertical direction is arranged on the frame 11, and the driving motor 16 is connected with the controller 4. A circular sleeve 13 is arranged on the rack 11 along the vertical direction, a vibration column 14 is connected in the circular sleeve 13 in a sliding mode, the top of the vibration column 14 is fixedly connected with the bottom of the platform 12, and a bearing 15 is rotatably connected to the bottom of the vibration column 14. An output shaft of the driving motor 16 is arranged along the horizontal direction and coaxially sleeved with a cam 17, and the bottom of the bearing 15 is abutted to the top of the side face of the cam 17. The controller 4 controls the driving motor 16 to rotate for a preset number of turns, so that the platform 12 vibrates up and down for a corresponding number of times, and the test experiment is smoothly performed.

Referring to fig. 1 and 3, the truncated circular mold 2 is horizontally placed on the stage 12, and the truncated circular mold 2 includes a first circular mold plate 21 having an arc shape and a second circular mold plate 22 having an arc shape, and the first circular mold plate 21 and the second circular mold plate 22 have the same size. The both ends of first circle template 21 and second circle template 22 butt all are equipped with joint lug 211, and the both ends of second circle template 22 and first circle template 21 butt all are equipped with joint lug 211 joint complex joint recess 221, joint lug 211 and joint recess 221 promote the leakproofness of truncated cone circle mould 2 for cement mortar can be by better moulding.

Referring to fig. 1, the opposite sides of the first circular mold plate 21 and the second circular mold plate 22 are provided with fixing members 3 for making the first circular mold plate 21 and the second circular mold plate 22 far away from or close to each other. The fixing member 3 includes an extension plate 31, a vertical plate 32, and a cylinder 33, the extension plate 31 is disposed along the horizontal direction, and the vertical plate 32 is disposed along the vertical direction. One end of the extension plate 31 is connected with the edge of the platform 12, and the top of the other end is fixedly connected with the bottom of the vertical plate 32. The cylinder 33 is arranged along the horizontal direction and connected with the vertical plate 32, and the cylinder 33 is connected with the controller 4. Piston rods of the two air cylinders 33 penetrate through the vertical plate 32 and are respectively connected with the first circular template 21 and the second circular template 22. The separation and the combination of passing controller 4 control first circle template 21 and second circle template 22 promote the separation convenience of truncated cone circle mould 2 and cement mortar, can not produce the effort to cement mortar when making first circle template 21 and second circle template 22 separate simultaneously, reach the effect that improves the stability of test.

Referring to fig. 1 and 4, a die sleeve 5 is connected to the top of the truncated cone circular die 2, and the die sleeve 5 is cylindrical and has an inner diameter that decreases from top to bottom. The die sleeve 5 can limit cement mortar exceeding the truncated cone circular die 2, and the cement mortar exceeding the truncated cone circular die 2 is prevented from scattering on the platform 12 to influence the subsequent experiment. The top of the truncated cone circular die 2 is provided with an annular clamping plate 23, and the bottom of the die sleeve 5 is provided with an annular clamping groove 51 which is in clamping fit with the annular clamping plate 23. The top of the truncated cone circular die 2 is also provided with an annular groove 24 for accommodating the bottom of the die sleeve 5, and the bottom of the die sleeve 5 is inserted into the annular groove 24.

Referring to fig. 1 and 5, the controller 4 is connected to a temperature/humidity sensor 41 and a temperature/humidity display 42, and the temperature/humidity display 42 is connected to the temperature/humidity sensor 41. Can acquire the environmental parameter in laboratory and show through humiture display 42 when carrying out the experiment through temperature and humidity sensor 41, the tester of being convenient for takes notes, avoids simultaneously testing the experiment in the place that does not conform to under the experiment requirement environment. The controller 4 is provided with a timing unit 43 for counting the working time of the driving motor 16, the controller 4 is provided with a timing display 44, and the timing display 44 is connected with the timing unit 43. Need count and vibrations number of times comparative analysis to platform 12 vibration time when carrying out cement glue sand mobility test, timing unit 43 can record the vibration time of platform 12, and the experimenter of being convenient for makes statistics of, reduces the degree of difficulty and the work load of experimenter operating instrument, reduces the experiment degree of difficulty and promotes the precision of experimental data.

The implementation principle of the cement mortar fluidity tester in the embodiment of the application is as follows: when the fluidity of the cement mortar is tested, the controller 4 controls the piston rod of the air cylinder 33 to extend out to enable the first circular template 21 and the second circular template 22 to be abutted to form the truncated cone circular mold 2, after the tested cement mortar is placed into the truncated cone circular mold 2 and is tamped, the controller 4 controls the piston rod of the air cylinder 33 to contract to enable the first circular template 21 and the second circular template 22 to be separated, meanwhile, the controller 4 controls the driving motor 16 to be started, so that the platform 12 is driven to shake in a reciprocating mode for a fixed time along the vertical direction to enable the cement mortar to be spread out, and the fluidity of the cement mortar is measured on the platform 12; divide into first circular template 21 and second circular template 22 with truncated cone circular mould 2 to through the separation of two 3 control first circular template 21 of mounting and second circular template 22, can not produce the effort to cement mortar when making first circular template 21 and second circular template 22 separate, reach the effect that improves the stability of test, be convenient for simultaneously the separation of truncated cone circular mould 2 and cement mortar.

Through the vibration time of timing unit 43 record platform 12, the experimenter of being convenient for makes statistics of, reduces the degree of difficulty and the work load of experimenter operating instrument, reduces the experiment degree of difficulty and promotes the precision of experimental data.

And can acquire the environmental parameter of laboratory and show through humiture display 42 when carrying out the experiment through temperature and humidity sensor 41, the tester record of being convenient for avoids carrying out the test experiment in the place that does not conform to under the experiment requirement environment simultaneously.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a cement mortar fluidity apparatus which characterized in that: the multifunctional jumping table comprises a jumping table (1), a truncated cone round die (2) and a controller (4) used for controlling the jumping table (1) to operate, wherein the jumping table (1) comprises a rack (11) and a platform (12), the platform (12) is located at the top of the rack (11), a driving motor (16) used for driving the platform (12) to vibrate in a reciprocating mode in the vertical direction is arranged on the rack (11), and the driving motor (16) is connected with the controller (4); the truncated cone circular die (2) comprises an arc-shaped first circular die plate (21) and an arc-shaped second circular die plate (22), the first circular die plate (21) and the second circular die plate (22) are the same in size, and fixing pieces (3) enabling the first circular die plate (21) and the second circular die plate (22) to be far away from or close to each other are arranged on the opposite sides of the first circular die plate (21) and the second circular die plate (22).

2. The cement mortar fluidity tester according to claim 1, characterized in that: fixing piece (3) are including extending board (31), riser (32) and cylinder (33), extend board (31) one end and platform (12) border and be connected, and the top of the other end is linked with the bottom of riser (32), cylinder (33) set up and are connected with riser (32) along the horizontal direction, cylinder (33) are connected with controller (4), two the piston rod of cylinder (33) of fixing piece (3) all runs through riser (32) and is connected with first circle template (21) and second circle template (22) respectively.

3. The cement mortar fluidity tester according to claim 1, characterized in that: the top of the truncated cone circular die (2) is connected with a die sleeve (5), and the die sleeve (5) is cylindrical and the inner diameter of the die sleeve is reduced from top to bottom in sequence.

4. The cement mortar fluidity tester according to claim 3, characterized in that: the top of the truncated cone circular die (2) is provided with an annular clamping plate (23), and the bottom of the die sleeve (5) is provided with an annular clamping groove (51) which is matched with the annular clamping plate (23) in a clamping and embedding manner.

5. The cement mortar fluidity tester according to claim 1, characterized in that: frame (11) are gone up and are equipped with circular sleeve (13) along vertical direction, sliding connection has vibrations post (14) in circular sleeve (13), the top and platform (12) bottom fixed connection of vibrations post (14), the output shaft of driving motor (16) sets up and coaxial cover along the horizontal direction and is equipped with cam (17), the side top of cam (17) and the bottom butt of vibrations post (14).

6. The cement mortar fluidity tester according to claim 5, characterized in that: the bottom of the vibration column (14) is rotatably connected with a bearing (15), and the bottom of the bearing (15) is abutted against the top of the side face of the cam (17).

7. The cement mortar fluidity tester according to claim 1, characterized in that: the controller (4) is connected with a temperature and humidity sensor (41) and a temperature and humidity display (42), and the temperature and humidity display (42) is connected with the temperature and humidity sensor (41).

8. The cement mortar fluidity tester according to claim 1, characterized in that: be equipped with on controller (4) and be used for statistics driving motor (16) operating time's timing unit (43), be equipped with timing display (44) on controller (4), timing display (44) are connected with timing unit (43).

Images