Combined measuring device and method for measuring fluidity of granular grouting material slurry

Abstract

The present invention discloses a combined measuring device and method for the fluidity of a granular grouting material slurry, the combined measuring device comprises: a fluidity test disc, used for placing the grouting material slurry to be measured; a truncated cone mold, the truncated cone mold has an inner cavity that passes through from top to bottom, and the truncated cone mold is used to quantitatively place the grouting material slurry to be measured on the fluidity test disc; a lifting device, the lifting device is used to clamp and lift the truncated cone mold; a jumping table driving device, the jumping table driving device is connected to the bottom of the fluidity test disc, and is used to drive the fluidity test disc to jump up and down; a test result collection and processing device, which is used to collect and process the test results. The combined measuring device can perform disc method measurement or jumping table method measurement according to the consistency of the grouting material slurry through a set of devices, has a wide range of applicable consistency, high accuracy and precision of the test results, and is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of grouting material performance measurement, and in particular to a combined measurement device and a measurement method for the fluidity of a granular grouting material slurry. Background Art

[0002] Grouting technology has been widely used in engineering for more than 100 years, and a wide variety of grouting materials have been formed. For solution-type chemical grouting materials, they can generally be tested with reference to conventional physical and chemical performance test methods and test methods in the petrochemical industry, and can basically meet the needs of grouting projects. However, the performance tests of the most widely used cement-based, clay and other granular grouting materials are mostly borrowed from the test means and methods of civil engineering materials, drilling mud, and geotechnical testing, and a unified method for the performance test of granular grouting materials has not been formed. The test results are often difficult to meet the needs of grouting projects.

[0003] The fluidity of granular grouting slurry is a measure of the fluidity of grouting materials, and also reflects the compatibility of cement-based materials with admixtures. It is one of the key control factors for slurry pumping and diffusion performance in the injected body. At present, the main methods for testing the fluidity of granular grouting materials include the net slurry fluidity method (disc method) (GB / T8077-2012 "Concrete admixture homogeneity test method", SL 62-2014 "Technical specification for cement grouting construction of hydraulic structures"), the jumping table method (GB / T 2419-2005 "Determination method of fluidity of cement mortar") and the Marshall cylinder method (JC / T 1083-2008 "Cement and water reducing agent compatibility test method"), etc.

[0004] The disc method and the jumping table method measure the fluidity by measuring the average diffusion distance of the material being tested on the disc, and the Marshall cylinder method measures the fluidity by the time required for the material being tested to fill a 200ml capacity cylinder. However, given that the Marshall cylinder method has many influencing factors (the verticality of the cylinder, observation of the capacity cylinder, time recording, and the need for 2-3 testers), and has a great impact on the fluidity measurement, it is more difficult to accurately control the measurement of granular grouting material slurry with low consistency. Therefore, the disc method and the jumping table method are mainly used for the fluidity test of granular grouting slurry materials.

[0005] The net slurry fluidity method (disc method) is widely used, but it is only applicable to slurries with moderate consistency. It is not applicable to slurries with high consistency due to the size of the disc, and it is not applicable to slurries with low consistency due to poor fluidity. At present, the jumping table method is used to test the fluidity of slurries with low consistency. Therefore, the test devices used for the fluidity test of slurries of similar granular grouting materials with different ratios (different ratios have different consistencies) are also different, which is inconvenient to operate during the specific test process.

[0006] The disc method is applicable to a small range of slurry consistency and has low accuracy (the truncated cone mold will shake when scraped flat, the bottom will leak slurry, and the horizontality of the circular plate is difficult to ensure). It is generally operated purely manually, and subjective factors (the speed of manually lifting the truncated cone mold, the verticality of the lifting process, the lifting height, and comparing the maximum vertical distance with a ruler) have a great impact on the measurement results. The jump table method mostly uses semi-automatic testing and is suitable for slurry materials with lower consistency. Similarly, subjective factors (shaking of the jump table test mold, uniformity of vibration, manual lifting speed of the truncated mold, lifting verticality, and comparing the maximum vertical distance with a ruler) produce large errors in the measurement results. The aforementioned problems make it difficult to guarantee the accuracy, repeatability, and precision of the fluidity measurement test results.

[0007] Therefore, it is necessary to develop a device and method for measuring the fluidity of granular grouting material slurry with a wide range of slurry consistency applications, convenient operation, and high measurement accuracy and precision. Summary of the invention

[0008] The main purpose of the present invention is to provide a combined measuring device and method for the fluidity of granular grouting material slurry. The measuring device and method are suitable for granular grouting materials with a wider consistency range, are easy to operate, and have high measuring accuracy and precision.

[0009] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a combined measuring device for the fluidity of a granular grouting material slurry is provided, the combined measuring device comprising: a fluidity test disc for placing the grouting material slurry to be measured; a truncated cone mold, the truncated cone mold having an inner cavity that passes through from top to bottom, the truncated cone mold being used to quantitatively place the grouting material slurry to be measured on the fluidity test disc; a lifting device, the lifting device being used to clamp and lift the truncated cone mold; a jumping table driving device, the jumping table driving device being connected to the bottom of the fluidity test disc, and being used to drive the fluidity test disc to jump up and down; and a test result acquisition and processing device, being used to acquire and process the test results.

[0010] Furthermore, the truncated cone mold includes: a mold body, which has an inner cavity that passes through from top to bottom, and the upper diameter of the inner cavity is smaller than the lower diameter; a scraping and slurry retention platform, which is arranged on the top of the mold body and extends horizontally outward along the top of the mold body; a truncated mold pressure platform, which is arranged on the outside of the mold body and is located below the scraping and slurry retention platform, and the mold body forms a clamping part for the lifting device to clamp the mold body between the scraping and slurry retention platform and the truncated mold pressure platform; an elastic rubber gasket is adhered to the bottom of the mold body; a temperature sensing probe is arranged on the mold body and is used to detect the temperature of the grouting material slurry to be measured in the mold body.

[0011] Furthermore, the lifting device includes: a lifting vertical shaft; a mechanical clamping arm, one end of which is equipped with a clamping finger for clamping the truncated cone mold, and the other end of the mechanical clamping arm is rotatably mounted on the lifting vertical shaft; a lifting motor, which is connected to the lifting vertical shaft and is used to drive the lifting vertical shaft to rise or fall.

[0012] Furthermore, the jumping table driving device includes: a jumping table base, which is arranged below the fluidity test disc, and the jumping table base is provided with a hollow sleeve extending upward; a jumping vertical shaft, which is installed in the jumping table base, and the upper end of the jumping vertical shaft extends from the hollow sleeve and is connected to the bottom of the fluidity test disc; a jumping table motor, a transmission gear is installed on the output shaft of the jumping table motor, the lower end of the jumping vertical shaft is located above the transmission gear and contacts with the transmission gear, and the jumping table motor is used to drive the jumping vertical shaft to drive the fluidity test disc to jump up and down.

[0013] Furthermore, the convex teeth of the transmission gear are elliptical, and the lower end of the vertical jumping shaft is a sphere.

[0014] Furthermore, the combined measuring device also includes: a supporting outer cylinder, the lower end of which is connected to the jump table base through a plurality of adjusting screws, the upper end of which is in contact with the bottom of the fluidity test disc but not fixedly connected, and a disc level is provided at the center of the fluidity test disc.

[0015] Furthermore, a slurry prevention baffle is provided on the outer periphery of the fluidity test disc, a waste slurry collection port is provided on the slurry prevention baffle, and a plurality of micro-pressure nozzles are provided on the side of the slurry prevention baffle opposite to the waste slurry collection port, and the micro-pressure nozzles are connected to the cleaning water supply device through a water supply pipe.

[0016] Furthermore, the test result acquisition and processing device includes: a camera bracket, which extends above the fluidity test disc; a camera, which is installed on the camera bracket and located directly above the fluidity test disc; and a processing computer, to which the camera is connected via a USB data cable.

[0017] According to another aspect of the present invention, a method for measuring the fluidity of a granular grouting material slurry is provided, which is measured using the above-mentioned combined measuring device. The method comprises the following steps:

[0018] S1. Adjust the fluidity test disc to a horizontal state, clamp the truncated cone mold by a lifting device and place the truncated cone mold in the center of the fluidity test disc with a slight pressure;

[0019] S2, pour the grouting material slurry to be measured into the inner cavity of the truncated cone mold and fill it up, and scrape off the excess slurry;

[0020] S3. Lift the truncated cone mold by the lifting device and rotate it to a position that does not affect the test result collection and processing device, and start the test result collection and processing device to collect and process the test results.

[0021] According to another aspect of the present invention, a method for measuring the fluidity of a granular grouting material slurry is provided, which is measured using the above-mentioned combined measuring device. The method comprises the following steps:

[0022] S1. Adjust the fluidity test disc to a horizontal state, clamp the truncated cone mold by a lifting device and place the truncated cone mold in the center of the fluidity test disc with a slight pressure;

[0023] S2, pour the grouting material slurry to be measured into the inner cavity of the truncated cone mold and fill it up, and scrape off the excess slurry;

[0024] S3. Lift the truncated cone mold through the lifting device and rotate it to a position that does not affect the test result collection and processing device, start the jumping table driving device and the test result collection and processing device, the jumping table driving device stops after jumping for a cycle, and the test result collection and processing device collects and processes the test results.

[0025] By applying the technical solution of the present invention, a set of devices can be used to perform disc method or jumping table method measurement according to the consistency of the grouting material slurry. When the consistency of the granular grouting material slurry to be measured is moderate, the disc method can be used for measurement, and the jumping table driving device does not work at this time; when the consistency of the granular grouting material slurry to be measured is small, the jumping table driving device is turned on and the jumping table method measurement is performed. The combined measurement device is suitable for granular grouting material slurries with different consistency ranges, and is particularly suitable for the measurement of the fluidity of similar granular grouting material slurries with different proportions. In addition, the combined measurement device lifts the truncated cone mold through the lifting device, drives the fluidity test disc to jump up and down through the jumping table driving device, and collects the test results through the test result collection and processing device, thereby avoiding the influence of subjective factors of human operation on the fluidity measurement results as much as possible, and the accuracy and precision of the test results are higher, and the test operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 Schematic diagram of the overall structure of the combined determination device according to an embodiment of the present invention.

[0028] Figure 2 It is a schematic structural diagram of a truncated cone mold in a combined measuring device according to an embodiment of the present invention.

[0029] Figure 3 for Figure 2 Section view of the middle AA plane.

[0030] Figure 4 It is a schematic structural diagram of a lifting device in a combined measuring device according to an embodiment of the present invention.

[0031] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0032] Figure 6 It is a schematic structural diagram of the connection between the lifting motor and the lifting vertical shaft in the combined measuring device according to an embodiment of the present invention.

[0033] Figure 7 It is a schematic structural diagram of the connection between the vertical lifting shaft and the mechanical clamping arm in the combined measuring device according to an embodiment of the present invention.

[0034] Figure 8 It is a schematic diagram of the structure of the table jumping driving device in the combined measurement device according to an embodiment of the present invention.

[0035] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle.

[0036] Fig.10 It is a partial enlarged view of the contact area between the transmission gear and the beating vertical shaft in the combined measuring device according to the embodiment of the present invention.

[0037] Fig.11 It is a schematic structural diagram of a fluidity test disc and a supporting outer cylinder in a combined measuring device according to an embodiment of the present invention.

[0038] Fig.12 It is a schematic diagram of the structure of the fluidity test disc in the combined determination device according to an embodiment of the present invention.

[0039] Fig.13 It is a schematic diagram of the structure of the test result acquisition and processing device in the combined determination device according to an embodiment of the present invention.

[0040] The above drawings include the following reference numerals:

[0041] 10. Fluidity test disc; 11. Disc level; 12. Slurry baffle; 13. Waste slurry collection port; 14. Micro-pressure nozzle; 15. Water supply pipe; 20. Truncated cone mold; 21. Mold body; 22. Slurry scraping and slurry retention table; 23. Cutting mold pressure table; 24. Elastic rubber gasket; 25. Temperature sensor; 30. Lifting device; 31. Lifting vertical axis; 32. Mechanical clamping arm; 33. Lifting motor; 40. Jump table drive device; 41. Jump table base; 42. Jumping vertical axis; 43. Jump table motor machine; 50, test result acquisition and processing device; 51, camera bracket; 52, camera; 53, processing computer; 54, USB data cable; 60, supporting outer cylinder; 61, adjusting screw; 70, device chassis; 80, waste liquid bucket; 90, control console; 311, cylindrical slot; 312, positioning bolt; 313, rack; 321, clamping finger; 322, cylindrical insert; 323, positioning groove; 331, driving gear; 411, hollow sleeve; 431, transmission gear. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner in conjunction with the accompanying drawings and preferred embodiments below, but the protection scope of the present invention is not limited to the following specific embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0043] Unless otherwise defined, all professional terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The words "one" or "an" and the like used in the patent application specification and claims of the present invention do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0044] See also Figures 1 to 13, a combined measuring device for the fluidity of a granular grouting material slurry according to an embodiment of the present invention, the combined measuring device mainly comprises: a fluidity test disc 10, a truncated cone mold 20, a lifting device 30, a jumping table driving device 40, a test result acquisition and processing device 50 and a device chassis 70. Among them, the fluidity test disc 10 is used to place the grouting material slurry to be measured; the truncated cone mold 20 has an inner cavity that runs through from top to bottom, and the truncated cone mold 20 is used to quantitatively place the grouting material slurry to be measured on the fluidity test disc 10; the lifting device 30 is used to clamp and lift the truncated cone mold 20, and can clamp the truncated cone mold 20 for horizontal rotation, so as to obtain the test results; the jumping table driving device 40 is connected to the bottom of the fluidity test disc 10, and is used to drive the fluidity test disc 10 to jump up and down; the test result acquisition and processing device 50 is used to collect the test results and process the test results.

[0045] The above-mentioned combined measuring device can perform disc method measurement or jumping table method measurement according to the consistency of the grouting material slurry through a set of devices. When the consistency of the granular grouting material slurry to be measured is moderate, the disc method can be used for measurement, and the jumping table driving device 40 does not work at this time; when the consistency of the granular grouting material slurry to be measured is small, the jumping table driving device 40 is turned on and the jumping table method measurement is performed. The combined measuring device is suitable for granular grouting material slurry with a wider consistency range, and is particularly suitable for the measurement of the fluidity of the same granular grouting material slurry with different proportions. In addition, the combined measuring device lifts the truncated cone mold 20 through the lifting device 30, drives the fluidity test disc 10 to jump up and down through the jumping table driving device 40, and collects the test results through the test result collection and processing device 50, thereby avoiding the influence of subjective factors of human operation on the fluidity measurement results as much as possible, and the accuracy and precision of the test results are higher, and the test operation is also more convenient.

[0046] Specifically, see Figure 2 and Figure 3 In this embodiment, the truncated cone mold 20 includes: a mold body 21, a slurry scraping and slurry retention platform 22, a truncated mold pressure platform 23, an elastic rubber gasket 24 and a temperature sensing probe 25. Among them, the mold body 21 has an inner cavity that runs through from top to bottom, and the upper diameter of the inner cavity is smaller than the lower diameter; the slurry scraping and slurry retention platform 22 is arranged at the top of the mold body 21 and extends horizontally outward along the top of the mold body 21; the truncated mold pressure platform 23 is arranged on the outside of the mold body 21 and is located below the slurry scraping and slurry retention platform 22, and the mold body 21 forms a clamping part for the lifting device 30 to clamp the mold body 21 between the slurry scraping and slurry retention platform 22 and the truncated mold pressure platform 23; the elastic rubber gasket 24 is attached to the bottom of the mold body 21; the temperature sensing probe 25 is arranged on the mold body 21, and is used to detect the temperature of the grouting material slurry to be measured in the mold body 21.

[0047] The truncated cone mold 20 is made of a metal material with a smooth inner wall and no joints, and is coated with an anti-corrosion layer. The inner diameter of the upper opening of the inner cavity is 36mm, the inner diameter of the lower opening is 64mm, the height is 60mm, and the wall thickness is 2mm. It is mainly used to hold slurry during fluidity testing. By setting a slurry scraping and slurry retention platform 22, it is ensured that the slurry does not splash onto the fluidity test disc 10 during the slurry scraping operation, and the conventional die-cutting slurry scraping operation is prevented from contaminating the fluidity test disc 10, causing the die-cutting to move and leak slurry, thereby affecting the test results. The width of the slurry scraping and slurry retention platform 22 is 30mm-50mm. By setting a cut-mold pressure platform 23 below the scraping and slurry retention platform 22, a clamping portion for the lifting device 30 to clamp the mold body 21 is formed between the scraping and slurry retention platform 22 and the cut-mold pressure platform 23, which is convenient for the lifting device 30 to clamp the mold body 21. The cut-mold pressure platform 23 can also be slightly pressed downward by the lifting device 30 to keep the bottom of the truncated cone mold 20 in close contact with the fluidity test disc 10, thereby avoiding leakage of slurry at the bottom of the truncated cone mold 20. Further, by pasting an elastic rubber gasket 24 on the bottom of the mold body 21, the micro-pressure transmitted by the cut-mold pressure platform 23 acts on the elastic rubber gasket 24, so that the truncated cone mold 20 and the fluidity test disc 10 are in closer contact, further avoiding leakage of slurry and water during the process of pouring slurry into the truncated cone mold 20, and ensuring that there is no shaking during the scraping process. The elastic rubber gasket 24 is a rubber ring with a thickness of about 1 mm, and the inner side wall of the elastic rubber gasket 24 is aligned with the lower opening of the inner cavity of the mold body 21. By setting a temperature probe 25 on the mold body 21, the slurry temperature is measured during the fluidity test, which is convenient for studying the influence of temperature on the fluidity of the slurry. In addition, a temperature display can be set on the mold body 21 and connected to the temperature probe 25 to display the temperature of the slurry in real time.

[0048] See also Figure 1 as well as Figures 4 to 7 In this embodiment, the lifting device 30 mainly includes: a lifting vertical shaft 31, a mechanical clamping arm 32 and a lifting motor 33. The lifting vertical shaft 31 is vertically mounted on the device chassis 70 so as to be able to be raised and lowered; a clamping finger 321 for clamping the truncated cone mold 20 is mounted at one end of the mechanical clamping arm 32, and the other end of the mechanical clamping arm 32 is rotatably mounted on the upper end of the lifting vertical shaft 31. The lifting motor 33 is connected to the lifting vertical shaft 31 and is used to drive the lifting vertical shaft 31 to rise or fall.

[0049] Specifically, see Figures 4 to 7A cylindrical core 322 is provided at one end of the mechanical clamp arm 32 away from the clamp finger 321, and a cylindrical slot 311 matching the cylindrical core 322 is provided at the upper end of the lifting vertical shaft 31, and the cylindrical core 322 is movably inserted in the cylindrical slot 311. A positioning groove 323 is provided on the cylindrical core 322 along its circumference, and a positioning bolt 312 matching the positioning groove 323 is penetrated on the side wall of the cylindrical slot 311, and the positioning bolt 312 is threadedly connected with the side wall of the cylindrical slot 311. When the mechanical clamp arm 32 needs to be rotated, the positioning bolt 312 is loosened, the mechanical clamp arm 32 is rotated to a suitable angle, and then the positioning bolt 312 is tightened so that the positioning bolt 312 extends into the positioning groove 323 to clamp and fix the mechanical clamp arm 32. A driving gear 331 is installed on the rotating shaft of the lifting motor 33, and a rack 313 is arranged on the lifting vertical shaft 31. The lifting motor 33 is meshed with the rack 313 through the driving gear 331. The lifting vertical shaft 31 is driven to rise or fall by the forward and reverse rotation of the lifting motor 33.

[0050] The lifting motor 33 adopts a controllable speed stepping motor. Since the lifting load is small, a low-power motor that ensures the test function can be used to save electricity. The uniform lifting speed of the lifting motor 33 is controlled at 5mm / s-20mm / s. In this way, the uncertainty of the lifting speed of manual operation can be avoided. The lifting height range of the lifting vertical axis 31 is 100mm-200mm. In this way, the uncertainty of the lifting direction of manual operation can be avoided. The protruding end of the positioning bolt 312 adopts a round wheel switch that is convenient for quick switching, which is conducive to the mechanical clamping arm 32 to vertically lift the predetermined height, and then use the positioning bolt 312 to control the horizontal rotation and position fixation of the mechanical clamping arm 32, and rotate the mechanical clamping arm 32 to remove the truncated cone mold 20, which is conducive to the test result collection and processing device 50 to collect the test results. The mechanical clamp arm 32 adopts a semicircular clamp finger 321 that is like a hand. The clamping surface of the clamp finger 321 is flat and smooth, and has good contact with the bottom surface of the scraping and slurry retention table 22 and the top surface of the truncated mold pressure table 23 in the truncated cone mold 20, and it is easy for the truncated cone mold 20 to be separated from the mechanical clamp arm 32.

[0051] See also Figure 1 and Figure 8In this embodiment, the jumping table driving device 40 includes: a jumping table base 41, a jumping vertical shaft 42 and a jumping table motor 43. The jumping table base 41 is arranged below the fluidity test disc 10, and a hollow sleeve 411 extending upward is arranged on the jumping table base 41; the jumping vertical shaft 42 is installed in the jumping table base 41, and the upper end of the jumping vertical shaft 42 extends from the hollow sleeve 411 and is connected to the bottom of the fluidity test disc 10; a transmission gear 431 is installed on the output shaft of the jumping table motor 43, and the lower end of the jumping vertical shaft 42 is located above the transmission gear 431 and contacts the transmission gear 431, and the jumping table motor 43 is used to drive the jumping vertical shaft 42 to drive the fluidity test disc 10 to jump up and down. The jumping table base 41 and the jumping table motor 43 are both arranged on the device chassis 70.

[0052] The jumping table motor 43 can provide 1 vertical vibration per second, with a vibration amplitude of 10mm±1mm, a vibration weight of 2.5kg, 25 vibrations in 25s±1s, and 25 vibrations in one cycle. After one vibration cycle, the jumping table motor 43 automatically stops. The jumping table motor 43 drives the transmission gear 431 so that the jumping vertical shaft 42 and the fluidity test disc 10 work together according to the rated jumping frequency. For further information, see Figure 8 The convex teeth of the transmission gear 431 are elliptical, and the lower end of the vertical axis 42 is a sphere. The contact and activity process between the vertical axis 42 and the transmission gear 431 can be made smoother.

[0053] See also Figure 1 , Figure 8 and Fig. 9 In this embodiment, the combined measuring device further comprises a supporting outer cylinder 60, the lower end of which is connected to the jump table base 41 through a plurality of adjusting screws 61, and the upper end of which is in contact with the bottom of the fluidity test disc 10 but not fixed. A disc leveler 11 is provided at the center of the fluidity test disc 10.

[0054] The supporting outer cylinder 60 is used to support the fluidity test disc 10, and the supporting outer cylinder 60 is installed on the jumping table base 41 through a plurality of adjusting screws 61. When in use, the horizontality of the supporting outer cylinder 60 can be adjusted by adjusting the screws 61, and the supporting outer cylinder 60 drives the fluidity test disc 10 to perform fine adjustment of the horizontality, and the disc leveler 11 is observed by adjusting the screws 61 to ensure that the fluidity test disc 10 is in a horizontal position.

[0055] See also Figure 1 , Fig.11 and Fig.12In this embodiment, a slurry-proof baffle 12 is provided on the periphery of the fluidity test disc 10, a waste slurry collection port 13 is provided on the slurry-proof baffle 12, and a plurality of micro-pressure nozzles 14 are provided on the side of the slurry-proof baffle 12 opposite to the waste slurry collection port 13, and the micro-pressure nozzles 14 are connected to a cleaning water supply device (not shown in the figure) through a water supply pipe 15. A threaded docking circular hole is provided at the bottom center of the fluidity test disc 10, and docking with the jumping vertical shaft 42.

[0056] The fluidity test disc 10 is made of white organic glass to ensure a white imaging background, which is conducive to the imaging recognition processing of the test result acquisition and processing device 50. The radius of the fluidity test disc 10 is 250mm, and the thickness is based on the rigidity that can ensure the fluidity test disc 10 has the accuracy of the test results. The center of the circle is marked with mutually perpendicular red cross wires with lengths of 5cm and 10cm, which are used for image ratio acquisition and proofreading before the test. A small disc level 11 is embedded in the center of the fluidity test disc 10 to measure whether the fluidity test disc 10 is placed horizontally. The anti-slurry baffle 12 is made of organic glass with a height of 50mm-100mm to ensure that the slurry flushed by the micro-pressure nozzle 14 does not splash out. The width of the anti-slurry baffle 12 is 2mm-5mm. A waste slurry collection port 13 is provided on the anti-slurry baffle 12 of the fluidity test disc 10, and a plurality of micro-pressure nozzles 14 are provided on the side opposite to the waste slurry collection port 13. The plurality of micro-pressure nozzles 14 are arranged in a semicircular shape with equal spacing along the anti-slurry baffle 12. The number of micro-pressure nozzles 14 ensures that the flushing covers the radius of 240 mm of the fluidity test disc 10. The micro-pressure nozzles 14 are connected to the centralized water supply by the water supply pipe 15, and can be connected to the indoor faucet through a conversion joint. The water pressure can be adjusted according to the faucet valve to control the flushing pressure. The test efficiency is improved through convenient and fast flushing and cleaning, and waste liquid collection. A waste liquid bucket 80 is provided below the waste slurry collection port 13 to collect waste liquid.

[0057] In this embodiment, the device chassis 70 is a circular steel plate with moderate thickness and reserved triangular bolt holes, which can be firmly connected to the concrete base or test bench by bolts. At the same time, in order to facilitate the test operation control, a control console 90 is also provided on the device chassis 70, and the lifting motor 33 and the table jumping motor 43 are both connected to the control console 90.

[0058] See also Figure 1 and Fig.13 In this embodiment, the test result acquisition and processing device 50 includes: a camera bracket 51, a camera 52, a processing computer 53 and a USB data line 54. The camera bracket 51 extends above the fluidity test disc 10; the camera 52 is mounted on the camera bracket 51 and is located directly above the fluidity test disc 10; the camera 52 is connected to the processing computer 53 via the USB data line 54.

[0059] The test result acquisition and processing device 50 uses a processing computer 53 with image recognition and processing functions to connect a camera 52 fixed on a camera bracket 51 through a USB data line 54 to perform image acquisition and processing. The camera 52 can set the photo acquisition time through the processing computer 53. The photos taken by the camera 52 are transmitted to the processing computer 53 through the USB data line 54, and the data recognition and recording of the test results are performed through graphic size analysis, thereby avoiding the errors caused by subjective judgment of the maximum diameter position and reading in the vertical direction during manual measurement, ensuring the accuracy of the test results, and the analysis speed is fast and efficient.

[0060] The method of using the combined determination device of this embodiment is as follows:

[0061] The combined measuring device can be used to measure the fluidity of granular grouting material slurries with small and large consistency. When the fluidity of the grouting material to be measured is slightly larger, the disc method is used for measurement, and the specific steps are as follows:

[0062] Step 1: Check the device and confirm that each component is in normal working condition;

[0063] Step 2: Observe the disc leveler 11 on the fluidity test disc 10 by adjusting the adjustment screw 61 to ensure that the fluidity test disc 10 is in a horizontal state, and analyze whether the imaging parameters of the camera 52 are accurate through the pre-imaging of the red cross hair;

[0064] Step 3, preparing the slurry according to the required slurry ratio, and preparing the slurry sample;

[0065] Step 4, open the micro-pressure nozzle 14 to clean the fluidity test disc 10, gently wipe and wet the fluidity test disc 10, and at the same time place the clean and wet truncated cone mold 20 on the mechanical clamp arm 32, rotate the mechanical clamp arm 32 and tighten the mechanical clamp arm rotation switch 34 to ensure that the center of the truncated cone mold 20 is directly opposite to the center position of the red cross wire of the fluidity test disc 10, and start the lifting motor 33 to lower the truncated cone mold 20 to apply a slight pressure and place it in the center position of the fluidity test disc 10;

[0066] Step 5: Pour the prepared granular grouting material slurry into the truncated cone mold 20 and fill it up. Use a scraper to gently scrape off the excess slurry on the scraping and slurry retention table 22 to prevent the slurry from spilling on the fluidity test disc 10. Meanwhile, observe and record whether there is water seepage or slurry leakage at the bottom of the truncated cone mold 20.

[0067] Step 6: Turn on the lifting motor 33 to lift the truncated cone mold 20 and turn on the camera 52 at the same time, and rotate the mechanical clamping arm 32 to a position that does not affect the normal shooting of the camera 52. When the lifting motor 33 is turned on, set the camera 52 to automatically take pictures for 30 seconds and transmit them to the processing computer 53 for image data processing and recording;

[0068] Step 7: After the test is completed, according to the consistency of the waste slurry retained on the fluidity test disc 10, the valve of the micro-pressure nozzle 14 is opened and adjusted to control the appropriate flushing pressure, and the waste liquid is collected in the waste liquid barrel 80 for centralized treatment; the truncated cone mold 20 is cleaned, and the fluidity test disc 10 is wiped with a slightly moist sponge to ensure that the fluidity test disc 10 is clean and moistened;

[0069] Step 8. Repeat the above steps 3 to 7 to conduct repeated tests or other proportioned granular grouting material slurry fluidity tests.

[0070] When the fluidity of the grouting material to be tested is small, the jumping table method is used for measurement. The specific steps are as follows:

[0071] Step 1: Check the device and confirm that each component is in normal working condition; start the jump table drive device 40, and it will automatically stop after one cycle of empty jump;

[0072] Step 2: Observe the disc leveler 11 on the fluidity test disc 10 by adjusting the adjustment screw 61 to ensure that the fluidity test disc 10 is in a horizontal state, and analyze whether the imaging parameters of the camera 52 are accurate through the pre-imaging of the red cross hair;

[0073] Step 3, preparing the slurry according to the required slurry ratio, and preparing the slurry sample;

[0074] Step 4, open the micro-pressure nozzle 14 to clean the fluidity test disc 10, gently wipe and wet the fluidity test disc 10, and at the same time place the clean and wet truncated cone mold 20 on the mechanical clamp arm 32, rotate the mechanical clamp arm 32 and tighten the mechanical clamp arm rotation switch 34 to ensure that the center of the truncated cone mold 20 is directly opposite to the center position of the red cross wire of the fluidity test disc 10, and start the lifting motor 33 to lower the truncated cone mold 20 to apply a slight pressure and place it in the center position of the fluidity test disc 10;

[0075] Step 5: Pour the prepared granular grouting material slurry into the truncated cone mold 20 and fill it up. Use a scraper to gently scrape off the excess slurry on the scraping and slurry retention table 22 to prevent the slurry from spilling on the fluidity test disc 10. Meanwhile, observe and record whether there is water seepage or slurry leakage at the bottom of the truncated cone mold 20.

[0076] Step 6: Turn on the lifting motor 33 to lift the truncated cone mold 20, and rotate the mechanical clamping arm 32 to a position that does not affect the normal shooting position of the camera 52. At the same time, turn on the jumping table drive device 40 and the camera 52. After jumping for a cycle, it automatically stops. The camera 52 immediately takes an image and transmits it to the processing computer 53 for data processing and recording.

[0077] Step 7: After the test is completed, according to the consistency of the waste slurry retained on the fluidity test disc 10, the valve of the micro-pressure nozzle 14 is opened and adjusted to control the appropriate flushing pressure, and the waste liquid is collected in the waste liquid barrel 80 for centralized treatment; the truncated cone mold 20 is cleaned, and the fluidity test disc 10 is wiped with a slightly moist sponge to ensure that the fluidity test disc 10 is clean and moistened;

[0078] Step 8. Repeat the above steps 3 to 7 to conduct repeated tests or other proportioned granular grouting material slurry fluidity tests.

[0079] The above two determination methods can be used to determine the fluidity by arbitrarily selecting the disk method or the jumping table method according to the different slurry consistencies of the granular grouting material.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined measuring device for the fluidity of a granular grouting material slurry, characterized in that: The combined assay device comprises: A fluidity test disc (10) for placing the grouting material slurry to be tested; A truncated cone mold (20), the truncated cone mold (20) having an inner cavity that passes through from top to bottom, and the truncated cone mold (20) is used to quantitatively place a grouting material slurry to be tested on the fluidity test disc (10); A lifting device (30), the lifting device (30) is used to clamp and lift the truncated cone mold (20), the lifting device (30) comprising: a lifting vertical shaft (31); a mechanical clamping arm (32), one end of the mechanical clamping arm (32) is equipped with a clamping finger (321) for clamping the truncated cone mold (20), and the other end of the mechanical clamping arm (32) is rotatably mounted on the lifting vertical shaft (31); a lifting motor (33), the lifting motor (33) is connected to the lifting vertical shaft (31) and is used to drive the lifting vertical shaft (31) to rise or fall; A jumping table driving device (40), the jumping table driving device (40) being connected to the bottom of the fluidity test disc (10) and used for driving the fluidity test disc (10) to jump up and down, the jumping table driving device (40) comprising: a jumping table base (41) arranged below the fluidity test disc (10), the jumping table base (41) being provided with a hollow sleeve (411) extending upward; and a jumping vertical shaft (42) installed in the jumping table base (41), the jumping vertical shaft (42) being arranged ... The upper end of the jumping table motor (42) extends from the hollow sleeve (411) and is connected to the bottom of the fluidity test disc (10); a jumping table motor (43), a transmission gear (431) is installed on the output shaft of the jumping table motor (43), the lower end of the jumping vertical shaft (42) is located above the transmission gear (431) and is in contact with the transmission gear (431), and the jumping table motor (43) is used to drive the jumping vertical shaft (42) to drive the fluidity test disc (10) to jump up and down; The test result collection and processing device (50) is used to collect the test results and process the test results.

2. The combined measuring device for the fluidity of granular grouting material slurry according to claim 1, characterized in that: The truncated cone mold (20) comprises: A mold body (21) having an inner cavity that passes through the inner cavity from top to bottom, and the upper diameter of the inner cavity is smaller than the lower diameter; A slurry scraping and slurry retention platform (22) is arranged on the top of the mold body (21) and extends horizontally outward along the top of the mold body (21); The cut-off mold pressure platform (23) is arranged outside the mold body (21) and below the slurry scraping and slurry retention platform (22); the mold body (21) forms a clamping portion between the slurry scraping and slurry retention platform (22) and the cut-off mold pressure platform (23) for the lifting device (30) to clamp the mold body (21); An elastic rubber gasket (24) is adhered to the bottom of the mold body (21); The temperature sensing probe (25) is arranged on the mold body (21) and is used to detect the temperature of the grouting material slurry to be measured in the mold body (21).

3. The combined measuring device for the fluidity of granular grouting material slurry according to claim 1, characterized in that: The convex teeth of the transmission gear (431) are elliptical, and the lower end of the jumping vertical shaft (42) is a spherical body.

4. The combined measuring device for the fluidity of granular grouting material slurry according to claim 1, characterized in that: The combined assay device further comprises: A supporting outer cylinder (60), the lower end of which is connected to the jumping table base (41) via a plurality of adjusting screws (61), the upper end of which is in contact with the bottom of the fluidity test disc (10) but not fixedly connected, and a disc leveler (11) is provided at the center of the fluidity test disc (10).

5. The combined measuring device for the fluidity of granular grouting material slurry according to claim 1, characterized in that: An anti-slurry baffle (12) is provided on the outer periphery of the fluidity test disc (10), a waste slurry collection port (13) is provided on the anti-slurry baffle (12), a plurality of micro-pressure nozzles (14) are provided on a side of the anti-slurry baffle (12) opposite to the waste slurry collection port (13), and the micro-pressure nozzles (14) are connected to a cleaning water supply device via a water supply pipe (15).

6. The combined measuring device for the fluidity of granular grouting material slurry according to claim 1, characterized in that: The test result collection and processing device (50) comprises: A camera bracket (51), the camera bracket (51) extending above the fluidity test disc (10); A camera (52) is mounted on the camera support (51) and is located directly above the fluidity test disc (10); A processing computer (53), wherein the camera (52) is connected to the processing computer (53) via a USB data cable (54).

7. A method for determining the fluidity of a granular grouting material slurry, characterized in that: The combined assay device according to any one of claims 1 to 6 is used for the assay, wherein the assay method comprises the following steps: S1, adjusting the fluidity test disc (10) to a horizontal state, clamping the truncated cone mold (20) by the lifting device (30) and placing the truncated cone mold (20) at the center of the fluidity test disc (10) with a slight pressure; S2, pouring the grouting material slurry to be measured into the inner cavity of the truncated cone mold (20) to fill it, and scraping off the excess slurry; S3, lifting the truncated cone mold (20) by means of the lifting device (30), and rotating it to a position where it does not affect the test result collection and processing device (50) collecting the test results, and starting the test result collection and processing device (50) to collect and process the test results.

8. A method for determining the fluidity of a granular grouting material slurry, characterized in that: The combined assay device according to any one of claims 1 to 6 is used for the assay, wherein the assay method comprises the following steps: S1, adjusting the fluidity test disc (10) to a horizontal state, clamping the truncated cone mold (20) by the lifting device (30) and placing the truncated cone mold (20) at the center of the fluidity test disc (10) with a slight pressure; S2, pouring the grouting material slurry to be measured into the inner cavity of the truncated cone mold (20) to fill it, and scraping off the excess slurry; S3, lift the truncated cone mold (20) by the lifting device (30) and rotate it to a position that does not affect the test result collection and processing device (50) to collect the test results, start the jumping table driving device (40) and the test result collection and processing device (50), the jumping table driving device (40) stops after jumping for a cycle, and the test result collection and processing device (50) collects and processes the test results.

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