CN115598012A - Intelligent measuring device and method for setting time of cement-based material - Google Patents
Intelligent measuring device and method for setting time of cement-based material Download PDFInfo
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- CN115598012A CN115598012A CN202211274606.5A CN202211274606A CN115598012A CN 115598012 A CN115598012 A CN 115598012A CN 202211274606 A CN202211274606 A CN 202211274606A CN 115598012 A CN115598012 A CN 115598012A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Abstract
The invention discloses an intelligent measuring device and method for setting time of cement-based materials, wherein the device comprises: a sample container for carrying a cement-based material; the test needle turntable is arranged above the sample container and is connected with a first driving motor; the electric lifting rod is eccentrically arranged on the test needle turntable; the test needle is arranged at the end part of the electric lifting rod and is pressed down along with the extension of the electric lifting rod, and a test needle pressure sensor is arranged on the test needle and is used for detecting the pressure born by the test needle when the test needle penetrates into the cement-based material; the intelligent control terminal, the input at intelligent control terminal with the output of examination needle pressure sensor is connected, the first output at intelligent control terminal with first driving motor is connected.
Description
Technical Field
The application relates to the technical field of construction machinery, in particular to an intelligent determination device and method for setting time of cement-based materials.
Background
The cement-based material is prepared by mixing inorganic cementing material, fine aggregate and water in proportion, and is commonly used for various masonry and plastering projects and the like. The setting time is measured by the setting speed and the setting time expressed by the penetration resistance, the control of the setting time of the material in the building construction process is particularly important, and the control of the setting time of the material can better control the setting time and the matching proportion of the material in the construction process, thereby ensuring the construction quality and improving the construction progress in the construction process.
The condensation time measuring instrument is a necessary testing instrument for industries such as building research units, building material production, detection and the like. The cement-based material setting time measuring device has different types in the current market, but most cement-based materials setting time measuring devices are traditional cement-based materials setting time measuring instruments, and the cement-based material setting time measuring device is characterized in that in the using process, a detector continuously measures and reads a force value displayed by an instrument dial pointer through manpower, and the penetration resistance value of a material is calculated, so that the setting time of the material is determined.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the measuring method calculates the penetration resistance through the human eye reading dial plate, and has larger error. The penetration resistance value needs to be measured and calculated manually frequently and uninterruptedly, the cycle of measuring the condensation time for one time is as long as tens of hours, the manual measurement of the condensation time wastes time and labor, and the error rate is high; in addition, the traditional coagulation time measuring instrument generally controls the pricking depth and pricking strength through manpower, the pricking measuring result has large errors, and inevitable errors still exist in repeated measurement. The measurement process has many data and long period, the error of only manual measurement is large, and the labor cost and the energy are consumed.
Disclosure of Invention
The embodiment of the application aims to provide an intelligent determination device and method for setting time of a cement-based material, so as to solve the problem that the setting time of the cement-based material cannot be intelligently determined in the related technology; when the penetration resistance is measured, due to the fact that the size of the sample is condensed and shrunk, the liquid level is lowered, the penetration depth can not be controlled to be consistent, and the effectiveness of experimental data can not be guaranteed; the binding position can not be automatically changed, repeated measurement of one position is avoided, and the accuracy of experimental data can not be ensured; the technical problem that all data values in the measurement process can not be intelligently recorded once is solved, the automatic determination of the setting time of a plurality of groups of cement-based material samples is realized, the error is reduced, the energy consumption of experimenters is reduced, and the test efficiency is greatly improved.
According to a first aspect of the embodiments of the present application, there is provided an intelligent determination device for setting time of cement-based materials, comprising:
a sample container for carrying a cement-based material;
the test needle rotary table is arranged above the sample container and is connected with a first driving motor;
the electric lifting rod is eccentrically arranged on the test needle turntable and is connected with an external power supply;
the test needle is arranged at the end part of the electric lifting rod and descends along with the downward pressing of the electric lifting rod, and a pressure sensor is arranged on the test needle and used for detecting the pressure born by the test needle when the test needle penetrates into the cement-based material;
the intelligent control terminal, the input at intelligent control terminal with pressure sensor's output is connected, the first output at intelligent control terminal with first driving motor is connected.
Further, still include the support, the support includes base, two stands and two-layer crossbeam, the one end of stand is installed on the base, the crossbeam is all installed between the stand, the sample container sets up on the base, wherein the supporting on the first crossbeam a driving motor, the supporting on the second crossbeam the test needle carousel.
Furthermore, the middle part of the second cross beam is cut off, grooves are respectively arranged inwards on the two cut-off surfaces, the test needle turntable is supported on the second cross beam through the two grooves, and steel balls are arranged at the joint of the support and the turntable, so that the rotation of the turntable is not influenced while the support is guaranteed. .
The pressure display instrument is connected with the output end of the pressure sensor and used for displaying the change condition of the pressure borne by the test needle in the process of penetrating into the cement-based material.
The electric lifting rod is arranged on the rotating track, and the lower part of the electric lifting rod penetrates through the rotating track to be convenient for connecting the test needles; the sliding structure driving motor is connected through a gear of the gear connecting rod and rotates to further drive the rotating crawler to rotate, and the electric lifting rod translates along the radius direction of the test needle turntable.
And the input end of the printer is connected with the third output end of the intelligent regulation and control terminal and is used for printing the data stored in the test by the intelligent regulation and control terminal.
Furthermore, the sample container is a sample turntable, a plurality of grooves for bearing the cement-based material are formed in the sample turntable, the sample turntable is connected with a second driving motor, and a second output end of the intelligent control terminal is connected with the second driving motor.
Furthermore, the test needle turntable is connected with the first driving motor through a transmission rod.
According to a second aspect of the embodiments of the present application, there is provided a method for intelligently measuring the setting time of a cement-based material, which is applied to the apparatus for intelligently measuring the setting time of a cement-based material according to the first aspect, and includes:
s11: adding a newly mixed cement-based material sample into a sample container;
s12: the intelligent control terminal controls the electric lifting rod to descend, firstly, the measurement stopping force of the intelligent control terminal is edited according to the sample, the intelligent control terminal controls the electric lifting rod to descend at a constant speed of 5-8mm per second until the bottom of the test needle contacts the liquid level of the sample, when the monitoring pressure of an accurate pressure sensor at the top end of the test needle is greater than 0, the electric lifting rod stops moving, and the test needle position is taken as a measurement starting position; the intelligent control terminal controls the electric lifting rod to be inserted to a standard depth at a speed of 10-15mm per second and then rises until the test needle completely leaves the original position of the liquid level, receives a pressure signal transmitted by a pressure sensor, and records the maximum resistance value of the pressure sensor in the insertion process as single measurement data;
s13: the intelligent control terminal controls the first driving motor to control the test needle turntable to rotate 15-30 degrees after 30 minutes through the transmission rod, and the step S12 is repeated;
s14: repeating the step S13, when the test needle turntable rotates 360 degrees, the intelligent control terminal controls the sliding structure to enable the electric lifting rod to slide 0.5-1.0cm towards the center direction of the test needle turntable, and repeating the steps S12-S13;
s15: when the maximum resistance value measured after the test needle is inserted exceeds a preset value, the intelligent control terminal controls the first driving motor to stop working and controls the electric lifting rod to stop working and recover to the state before working.
According to a third aspect of the embodiments of the present application, there is provided an intelligent method for measuring setting time of a cement-based material, which is applied to an intelligent device for measuring setting time of a cement-based material in which a sample container is a sample turntable, the method comprising:
s21: adding a sample with a standard volume into each standard test mold, and sequentially placing the standard test molds into grooves of a sample turntable, wherein the sample in each standard test mold is newly mixed same or different cement-based materials;
s22: the intelligent control terminal controls the electric lifting rod to descend, firstly, the measurement stopping force of the intelligent control terminal is edited according to the sample, the intelligent control terminal controls the electric lifting rod to descend at a constant speed of 5-8mm per second until the bottom of the test needle contacts the liquid level of the sample, when the monitoring pressure of an accurate pressure sensor at the top end of the test needle is greater than 0, the electric lifting rod stops moving, and the test needle position is taken as a measurement starting position; the intelligent control terminal controls the electric lifting rod to be inserted to a standard depth at a speed of 10-15mm per second, then the electric lifting rod is lifted to return to a position where the test needle completely leaves the liquid level, the intelligent control terminal receives a pressure signal transmitted by a pressure sensor, and the maximum resistance value of the pressure sensor in the insertion process is recorded as single measurement data;
s23: starting a second driving motor, enabling the sample turntable to rotate a second group of samples to a test needle pricking position, and repeating the step S22 to finish pricking;
s24: after the single measurement of all the samples is finished, the intelligent control terminal controls the first driving motor to control the test needle turntable to rotate 15-30 degrees after 30 minutes through the transmission rod, and the steps S22 and S23 are repeated;
s25: repeating the step S24, when the test needle turntable rotates 360 degrees, the intelligent control terminal controls the sliding structure to enable the electric lifting rod to slide 0.5-1.0cm towards the center direction of the test needle turntable, and repeating the steps S22-S24;
s26: when the maximum resistance value measured after the test needle is inserted exceeds a preset value, the intelligent control terminal controls the first driving motor and the second driving motor to stop working, and controls the electric lifting rod to stop working and recover the state before working.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the embodiment, the intelligent control terminal is used for controlling the electric lifting rod to move downwards initially and slowly in the application (1), the test needle pressure sensor on the test needle transmits a pressure signal when contacting with the surface of a test sample, the intelligent control terminal receives the pressure signal and controls the electric lifting rod to stop moving downwards, the electric lifting rod controls the pointer to rapidly move downwards at the same time, the test needle rapidly rises when reaching the standard depth of downward movement, the measurement pressure sensor at the bottom of each test sample slot in the test sample turntable records the maximum value of single downward movement, and data are transmitted to the intelligent control terminal for recording, so that the depth and the speed of each inserted test sample are consistent under the condition that the liquid level of the materials with the same volume are different due to contraction of the bleeding volume in the measurement process, the setting time of the intelligent control cement-based materials is achieved, and the accuracy is improved. (2) The first driving motor is controlled through the intelligent control terminal to enable the test needle turntable to rotate by a certain angle, and the sliding structure is controlled to enable the electric lifting rod to slide towards the center direction of the test needle turntable, so that the test needle pricking positions at different moments are changed, the pricking positions are not repeated at each time, and the real effectiveness of measured data is guaranteed. (3) The pressure sensor under the sample container is used for recording and transmitting data, the data of the pressure sensor is received through the intelligent control terminal, reading recording is not needed, errors of manual reading are avoided, and experiment efficiency is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic diagram illustrating an intelligent determination of setting time of a cement-based material, according to an exemplary embodiment.
Fig. 2 is a schematic diagram of a test needle dial shown in accordance with an exemplary embodiment.
Fig. 3 is a schematic view of a test pin structure sliding device according to an exemplary embodiment.
FIG. 4 is a schematic diagram of a sample carousel configuration shown in accordance with an exemplary embodiment.
Description of the reference numerals:
1. a base; 2. a column; 3. a pressure display instrument; 4. an intelligent control terminal; 5. a printer; 6. a sample turntable; 7. a second drive motor; 8. a sliding structure; 8-1, gear connecting rods; 8-2, driving a motor by a sliding structure; 8-3, rotating the crawler; 9. a second cross member; 10. a test needle turntable; 11. an electric lifting rod; 12. testing needles; 13. a needle test pressure sensor; 14. a first cross member; 15. a first drive motor; 16. a transmission rod; 17. a pressure sensor is measured.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at" \8230; "or" when 8230; \8230; "or" in response to a determination ", depending on the context.
Fig. 1 is a schematic diagram of an intelligent measuring device for setting time of cement-based materials according to an exemplary embodiment, as shown in fig. 1, the device may include a sample container for carrying cement-based materials, a test needle turntable 10, an electric lifting rod 11, a test needle 12, and an intelligent control terminal 4, wherein the test needle turntable 10 is disposed above the sample container, and the test needle turntable 10 is connected to a first driving motor 15; the electric lifting rod 11 is eccentrically arranged on the test needle turntable 10, and the electric lifting rod 11 realizes telescopic action by depending on the structure of the electric lifting rod; the test needle 12 is installed at the end of the electric lifting rod 11 and descends along with the extension of the electric lifting rod 11, the test needle 12 is provided with a test needle pressure sensor 13, the test needle pressure sensor 13 receives and transmits a pressure signal when contacting the surface of a sample, the intelligent control terminal 4 receives the pressure signal, the electric lifting rod 11 is controlled to stop moving downwards, the pointer is marked to start measuring the position, and meanwhile the pointer controlled by the electric lifting rod 11 can be rapidly pulled down and lifted to return. And the purpose of controlling the consistent pricking depth by changing the liquid level position of the sample material with the same volume due to different bleeding conditions due to time lapse is realized, and the accuracy of test data is ensured. A measurement pressure sensor 17 is arranged in each groove for placing a sample container of the sample turntable 6, and the measurement pressure sensor 17 detects the penetration resistance of the cement-based material when the test needle 12 is inserted downwards and transmits the penetration resistance to the intelligent control terminal 4 for recording and storing; the input end of the intelligent control terminal 4 is connected with the output end of the pressure measuring sensor 17, and the first output end of the intelligent control terminal 4 is connected with the first driving motor 15.
Preferably, the measuring pressure sensor 17 is a piezoelectric pressure sensor. The measurement of dynamic stress is facilitated.
According to the embodiment, this application (1) is pricked with intelligent regulation and control terminal 4 control electric lift pole 11, test needle pressure sensor 13 on test needle 12 transmits pressure signal when contacting the sample surface, intelligent regulation and control terminal 4 receives pressure signal, make control electric lift pole 11 make and stop moving down, the mark pointer begins measuring position, make electric lift pole 11 control pointer can prick down fast, with the degree of depth and the speed unanimity of pricking the sample at every turn of assurance, the inconsistent problem of the degree of depth of pricking is led to the liquid level change because the volume shrink that the condensation takes place to the same volume material has been avoided. The functions of intelligently controlling the setting time of the cement-based material and improving the accuracy are achieved; (2) The first driving motor 15 is controlled through the intelligent control terminal 4, so that the test needle turntable 10 rotates for a certain angle, the pressing position of the electric lifting rod 11 is changed, and the pressing position of the test needle 12 is changed. (3) The pressure measuring sensor 17 under the sample container records and transmits data, the data of the pressure measuring sensor 17 are received through the intelligent control terminal 4, reading recording is not needed, and errors of manual reading are avoided.
Preferably, the test needle pressure sensor 13 is a strain gauge pressure sensor. The strain type pressure sensor has the advantages of high measurement precision and sensitivity and strong adaptability, can accurately and quickly stop the electric lifting rod 11 from descending in the early stage of cement-based material strength forming, and can also keep the working effect of high precision when frequently contacting slurry.
Referring to fig. 2, a sliding structure 8 exists in the test needle turntable 10, the electric lifting rod 11 is arranged on the sliding structure 8, the intelligent control terminal 4 controls the sliding structure driving motor 8-2, and the sliding structure 8 is driven to slide towards the center of the test needle turntable 10 after the test needle turntable 10 finishes 360-degree rotation, so that the test needles 12 are punched at different times, the punching positions are not repeated at each time, and the validity of measured data is ensured.
Referring to fig. 3, after the test needle 12 finishes one-time insertion, the second driving motor 7 is controlled by the intelligent control terminal 4 to rotate once, so that the next group of samples is located below the test needle 12 to wait for testing, thereby realizing measurement of multiple groups of samples.
Referring to fig. 4, the test needle pressure sensor 13 is arranged at the top of the test needle 12, and as the test needle 12 continuously descends, when the test needle pressure sensor 13 touches the surface of the sample, a pressure signal is generated and transmitted to the intelligent control terminal 4, and the intelligent control terminal 4 receives a feedback pressure signal to control the electric lifting rod 11 to stop descending. The setting of the test needle pressure sensor 13 can realize the intelligent regulation and control of the downward penetration depth of the test needle 12 to keep consistent, and the accuracy of the experiment is improved.
The intelligent regulation and control terminal 4 in this embodiment may adopt an intelligent feedback recorder product of OHR-F101R-a-2-a-1, but is not limited thereto.
Specifically, still include the support, the support includes base 1, two stands 2 and two-layer crossbeam, the one end of stand 2 is installed on the base 1, the crossbeam is all installed between the stand 2, the sample container sets up on the base 1, wherein support on the first crossbeam 14 first driving motor 15, support on the second crossbeam 9 test needle carousel 10.
Specifically, the middle of the second beam 9 is cut off, two cut-off surfaces are respectively provided with a groove inwards, and the test needle rotary table 10 is supported on the second beam 9 through the two grooves. The arrangement of the groove enables the test needle turntable 10 to rotate, the downward pricking position is changed, the measurement of different positions of a sample is realized, and the experiment accuracy is improved.
Specifically, the tester further comprises a pressure display instrument 3, wherein the input end of the pressure display instrument 3 is connected with the output end of the measurement pressure sensor 17 and is used for displaying the pressure, measured by the measurement pressure sensor 17, on the bottom of the sample when the test needle 12 penetrates into the cement-based material.
In a specific embodiment, the pressure display instrument 3 is installed on the base 1, the sample turntable 6 is arranged on the pressure display instrument 3, and the measurement pressure sensor 17 is arranged on the sample turntable 6, so as to realize measurement of penetration resistance during the downward pricking.
Specifically, the device can further comprise a sliding structure 8, wherein the sliding structure 8 is arranged on the test needle turntable 10 and comprises a gear connecting rod 8-1, a sliding structure driving motor 8-2 and a rotating crawler 8-3, the electric lifting rod 11 is arranged on the rotating crawler 8-3, and the lower part of the electric lifting rod 11 penetrates through the rotating crawler 8-3 so as to be convenient for connecting a test needle 12; the sliding structure driving motor 8-2 is connected with a gear through a gear connecting rod 8-1 and rotates to drive the rotating crawler 8-3 to rotate, and the sliding structure driving motor is used for achieving translation of the electric lifting rod 11 along the radius direction of the test needle rotating disc 10, so that the downward pricking position of the test needle 12 is changed.
Specifically, the intelligent control system further comprises a printer 5, wherein an input end of the printer 5 is connected with a third output end of the intelligent control terminal 4, and the printer is used for printing data stored in the test by the intelligent control terminal 4. When the multi-group samples are measured simultaneously, the data reports of the multi-group samples can be intelligently output, and the follow-up testers can conveniently analyze and compare the data.
Specifically, be provided with a plurality of on the sample carousel 6 be used for bear the weight of cement-based material's recess, sample carousel 6 is connected with second driving motor 7, the second output of intelligent control terminal 4 with second driving motor 7 is connected.
In this embodiment, the second driving motor 7 is as shown in fig. 3. The sample turntable 6 is arranged on the second driving motor 7 to realize the rotation of the sample turntable 6. The second driving motor 7 is arranged to rotate the sample turntable 6, so that the pricking measurement of the same sample at different positions is realized, and the accuracy of the experiment is improved.
In this embodiment, the intelligent control terminal 4 controls the second driving motor 7 to rotate the sample turntable 6 to the next sample during single measurement. When the sample turntable 6 rotates for 360 degrees, the intelligent control terminal 4 controls the first driving motor 15 to drive the test needle turntable 10 to rotate for 13-15 degrees, so that the test result is prevented from deviating at the same position of the repeatedly measured sample, and the effectiveness of the test result is ensured. After the test needle turntable 10 rotates 360 degrees, the intelligent control terminal 4 controls the sliding structure driving motor 8-2 to change the position of the electric lifting rod 11, so that the pricking position of the test needle 12 is changed.
In the specific implementation, the device size of the sample turntable 6 and the test needle turntable 10 can be flexibly adjusted according to the required quantity of the measurement groups. This setting is conventional in the art and will not be described in detail herein.
Specifically, as shown in fig. 4, the test needle rotary table 10 is connected to the first drive motor 15 through a transmission rod 16. When the intelligent control terminal 4 controls the first driving motor 15 to operate, the first driving motor 15 rotates the test needle turntable 10 through the transmission rod 16, so as to change the pricking position.
The application also provides an intelligent determination method of the setting time of the cement-based material, which is applied to the intelligent determination device of the setting time of the cement-based material and can comprise the following steps:
s11: adding a newly mixed cement-based material sample into a sample container;
s12: the intelligent control terminal 4 controls the electric lifting rod 11 to descend, firstly, the measurement termination force of the intelligent control terminal is edited according to the sample, the intelligent control terminal 4 controls the electric lifting rod 11 to descend at a constant speed of 5-8mm per second until the bottom of the test needle 12 contacts the liquid level of the sample, when the monitoring pressure of an accurate pressure sensor at the top end of the test needle 12 is greater than 0, the electric lifting rod 11 stops moving, and at the moment, the position of the test needle 12 serves as a measurement starting position; the intelligent control terminal 4 controls the electric lifting rod 11 to be inserted to a standard depth at a speed of 10-15mm per second, and then raises the electric lifting rod until the test needle 12 completely leaves the liquid level, the intelligent control terminal 4 receives a pressure signal transmitted by a pressure sensor, and the maximum resistance value of the pressure sensor in the insertion process is recorded as single measurement data;
s13: the intelligent control terminal 4 controls the first driving motor 15 to control the test needle turntable 10 to rotate 15-30 degrees after 30 minutes through the transmission rod 16, and the step S12 is repeated;
s14: repeating the step S13, when the test needle turntable 10 finishes rotating for 360 degrees, the intelligent control terminal 4 controls the sliding structure 8 to enable the electric lifting rod 11 to slide for 0.5-1.0cm towards the center direction of the test needle turntable 10, and repeating the steps S12-S13;
s15: when the maximum resistance value measured after the test needle 12 is inserted exceeds the preset value, the intelligent control terminal 4 controls the first driving motor 15 to stop working, and controls the electric lifting rod 11 to stop working and recover the state before working.
Preferably, the intelligent determination method for the setting time of the cement-based material, which is applied to the intelligent determination device for the setting time of the cement-based material with the sample container being the sample turntable 6, may include:
s21: respectively adding samples with different mix proportions and a preset volume which are newly mixed into a standard test mold, and sequentially placing the standard test mold into a groove of a sample turntable 6;
s22: the intelligent control terminal 4 controls the electric lifting rod 11 to descend, firstly, the measurement time of the intelligent control terminal is edited according to actual materials, the intelligent control terminal 4 controls the electric lifting rod 11 to slowly descend at a speed of 5-8mm per second until the bottom of the test needle 12 contacts the liquid level of a sample, the intelligent control terminal 4 controls the electric lifting rod 11 to quickly descend at a speed of 10-15mm per second, and when the intelligent control terminal 4 receives a pressure signal transmitted by the test needle pressure sensor 13, the electric lifting rod 11 is immediately controlled to stop descending and ascend at a constant speed. A pressure measuring sensor 17 arranged at the bottom of the groove of the sample turntable 6 measures a pressure signal, and transmits the pressure signal to the intelligent control terminal 4 to record the maximum resistance value of the pressure sensor in the binding process;
s23: starting a second driving motor 7, enabling the sample turntable 6 to rotate a second group of samples to the pricking position of the test needles 12, and repeating the step S22 to finish pricking;
s24: after the single measurement of all the samples is completed, the intelligent control terminal 4 controls the first driving motor 15 to control the test needle turntable 10 to rotate for 15-30 degrees after 30 minutes through the transmission rod 16, and the steps S22 and S23 are repeated;
s25: repeating the step S24, when the test needle turntable 10 finishes rotating for 360 degrees, the intelligent control terminal 4 controls the sliding structure 8 to enable the electric lifting rod 11 to slide for 0.5-1.0cm towards the center direction of the test needle turntable 10, and repeating the steps S22-S24;
s26: when the maximum resistance value measured after the test needle 12 is inserted exceeds the preset value, the intelligent control terminal 4 controls the first driving motor 15 and the second driving motor 7 to stop working, and controls the electric lifting rod 11 to stop working and recover to the state before working.
It should be noted that, the specific implementation of the two methods for intelligently measuring the setting time of the cement-based material are described in the specific implementation section of the apparatus for intelligently measuring the setting time of the cement-based material, and are not described herein again.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.
Claims (10)
1. An intelligent measuring device for setting time of cement-based materials, characterized by comprising:
a sample container for carrying a cement-based material;
the test needle turntable is arranged above the sample container and is connected with a first driving motor;
the electric lifting rod is eccentrically arranged on the test needle turntable and is connected with an external power supply;
the test needle is arranged at the end part of the electric lifting rod and descends along with the downward pressing of the electric lifting rod, and a pressure sensor is arranged on the test needle and used for detecting the pressure born by the test needle when the test needle penetrates into the cement-based material;
the intelligent control terminal, the input at intelligent control terminal with pressure sensor's output is connected, the first output at intelligent control terminal with first driving motor is connected.
2. The device of claim 1, further comprising a support, wherein the support comprises a base, two columns and two layers of beams, one end of each column is mounted on the base, the beams are mounted between the columns, the sample container is arranged on the base, the first driving motor is supported on a first beam, and the test needle turntable is supported on a second beam.
3. The device of claim 2, wherein the middle of the second beam is cut off, two cut-off surfaces are respectively provided with a groove inwards, the test needle turntable is supported on the second beam through the two grooves, and a steel ball is arranged at the joint of the support and the turntable, so that the rotation of the turntable is not influenced while the support is ensured.
4. The apparatus of claim 1, further comprising a pressure display, wherein an input end of the pressure display is connected to an output end of the pressure sensor, and is used for displaying the change of the pressure applied during the penetration of the test needle into the cement-based material.
5. The device of claim 1, further comprising a sliding structure, wherein the sliding structure is arranged on the test needle turntable and comprises a gear connecting rod, a sliding structure driving motor and a rotating crawler, the electric lifting rod is arranged on the rotating crawler, and the lower part of the electric lifting rod penetrates through the rotating crawler to be convenient for connecting the test needle; the sliding structure driving motor is connected with the gear through the gear connecting rod and rotates to further drive the rotating crawler to rotate, and the electric lifting rod is used for achieving translation along the radius direction of the test needle rotating disc.
6. The device of claim 1, further comprising a printer, wherein an input end of the printer is connected to a third output end of the intelligent control terminal, and the printer is used for printing data stored in the test by the intelligent control terminal.
7. The device according to claim 1, wherein the sample container is a sample turntable, a plurality of grooves for bearing the cement-based material are arranged on the sample turntable, the sample turntable is connected with a second driving motor, and a second output end of the intelligent control terminal is connected with the second driving motor.
8. The device according to claim 1, wherein the test needle turntable is connected with the first driving motor through a transmission rod.
9. An intelligent method for measuring setting time of cement-based materials, which is applied to the intelligent device for measuring setting time of cement-based materials as claimed in any one of claims 1-8, and comprises the following steps:
s11: adding a newly mixed cement-based material sample into a sample container;
s12: the intelligent control terminal controls the electric lifting rod to descend, firstly, the measurement stopping force of the intelligent control terminal is edited according to the sample, the intelligent control terminal controls the electric lifting rod to descend at a constant speed of 5-8mm per second until the bottom of the test needle contacts the liquid level of the sample, when the monitoring pressure of an accurate pressure sensor at the top end of the test needle is greater than 0, the electric lifting rod stops moving, and the test needle position is taken as a measurement starting position; the intelligent control terminal controls the electric lifting rod to be inserted to a standard depth at a speed of 10-15mm per second and then rises until the test needle completely leaves the original position of the liquid level, receives a pressure signal transmitted by a pressure sensor, and records the maximum resistance value of the pressure sensor in the insertion process as single measurement data;
s13: the intelligent control terminal controls the first driving motor to control the test needle turntable to rotate 15-30 degrees after 30 minutes through the transmission rod, and the step S12 is repeated;
s14: repeating the step S13, when the test needle turntable rotates 360 degrees, the intelligent control terminal controls the sliding structure to enable the electric lifting rod to slide 0.5-1.0cm towards the center direction of the test needle turntable, and repeating the steps S12-S13;
s15: when the maximum resistance value measured after the test needle is pricked exceeds a preset value, the intelligent control terminal controls the first driving motor to stop working, and controls the electric lifting rod to stop working and recover to the state before working.
10. An intelligent method for measuring setting time of cement-based materials, which is applied to the intelligent device for measuring setting time of cement-based materials according to claim 7, comprising:
s21: adding a sample with a standard volume into each standard test mold, and sequentially placing the standard test molds into grooves of a sample turntable, wherein the sample in each standard test mold is newly mixed same or different cement-based materials;
s22: the intelligent control terminal controls an electric lifting rod to descend, firstly, the end measuring force of the intelligent control terminal is edited according to the sample, the intelligent control terminal controls the electric lifting rod to descend to the bottom of the test needle at a constant speed of 5-8mm per second until the bottom of the test needle contacts the liquid level of the sample, when the monitoring pressure of an accurate pressure sensor at the top end of the test needle is larger than 0, the electric lifting rod stops moving, and the test needle position is used as a measuring initial position; the intelligent control terminal controls the electric lifting rod to be inserted to a standard depth at a speed of 10-15mm per second, then the electric lifting rod is lifted to return to a position where the test needle completely leaves the liquid level, the intelligent control terminal receives a pressure signal transmitted by a pressure sensor, and the maximum resistance value of the pressure sensor in the insertion process is recorded as single measurement data;
s23: starting a second driving motor to enable the sample turntable to rotate a second group of samples to the test needle pricking position, and repeating the step S22 to finish pricking;
s24: after the single measurement of all the samples is finished, the intelligent control terminal controls the first driving motor to control the test needle turntable to rotate 15-30 degrees after 30 minutes through the transmission rod, and the steps S22 and S23 are repeated;
s25: repeating the step S24, when the test needle turntable rotates 360 degrees, the intelligent control terminal controls the sliding structure to enable the electric lifting rod to slide 0.5-1.0cm towards the center direction of the test needle turntable, and repeating the steps S22-S24;
s26: when the maximum resistance value measured after the test needle is pricked exceeds a preset value, the intelligent control terminal controls the first driving motor and the second driving motor to stop working, and controls the electric lifting rod to stop working and recover to the state before working.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211274606.5A CN115598012A (en) | 2022-10-18 | 2022-10-18 | Intelligent measuring device and method for setting time of cement-based material |
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| CN202211274606.5A CN115598012A (en) | 2022-10-18 | 2022-10-18 | Intelligent measuring device and method for setting time of cement-based material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117706071A (en) * | 2024-02-06 | 2024-03-15 | 四川省公路规划勘察设计研究院有限公司 | Cement setting time tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117706071A (en) * | 2024-02-06 | 2024-03-15 | 四川省公路规划勘察设计研究院有限公司 | Cement setting time tester |
| CN117706071B (en) * | 2024-02-06 | 2024-05-03 | 四川省公路规划勘察设计研究院有限公司 | Cement setting time tester |
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