Mortar consistency measuring device and measuring method

Abstract

The invention relates to the technical field of building material quality detection, and discloses a mortar consistency measuring device and a mortar consistency measuring method. The invention aims to solve the technical problems that the mortar sample needs to be manually stirred and loaded in the prior art, the process is tedious and time-consuming, the mortar sample is possibly not compact enough due to the existence of air bubbles, and the consistency measurement accuracy is influenced. The device comprises a mortar stirring structure, a mortar outlet is formed in the bottom of the mortar stirring structure, multiple containers are connected below the mortar outlet, telescopic rods are arranged on the left sides of the containers, a fixed support is installed at the movable end of each telescopic rod, and a test cone is installed at the end of each fixed support through a limiting structure; a rotating disc is arranged below the container, and a vibration structure is installed below the rotating disc through a chassis. According to the invention, the efficiency and accuracy of mortar consistency determination are improved, the automation degree of the equipment is enhanced, and the overall performance of mortar consistency determination is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of building material quality detection, and in particular to a mortar consistency measuring device and a measuring method. Background Art

[0002] The construction environment of remote tunnels is complex, and the requirements for material quality are particularly strict. As a key material for tunnel lining, support and other structures, the consistency of mortar directly affects the construction quality and structural stability. Therefore, using a mortar consistency meter to accurately measure and control the consistency of mortar is an important means to ensure the quality of tunnel construction. The mortar consistency meter can quickly and accurately measure the consistency of mortar, provide data support for construction personnel, and help them adjust the mortar mix ratio and construction process according to actual conditions.

[0003] However, the construction environment of remote tunnels is often harsh, such as high temperature, high humidity, and dust. These environmental factors put forward higher requirements on the accuracy and stability of the mortar consistency meter, and its adaptability and durability need to be fully considered. Remote tunnels are inconvenient for transportation and equipment transportation, and the data processing and feedback mechanism are often not perfect. The mortar consistency data cannot be fed back to the construction personnel and quality control personnel in a timely and accurate manner, resulting in their inability to adjust the construction parameters and processes in a timely manner.

[0004] Therefore, it is necessary to design a portable and durable mortar consistency tester for remote tunnel construction conditions to solve the above problems.

[0005] The Chinese patent document in the prior art: 201910241716.3 discloses a mortar consistency density tester, including a base, a slide bar, a standard test cone, a mortar cup, a support frame and a digital display, wherein the slide bar is vertically arranged on the base, the mortar cup is arranged on the base, one end of the support frame is slidably arranged on the slide bar, and in this embodiment, one end of the support frame is sleeved on the slide bar and fixed by an adjusting bolt. The other end of the support frame is connected to a digital display, a cone rod is connected to the upper part of the standard test cone, the digital display is passed through the cone rod, the cone rod can slide vertically, the center line of the standard test cone is colinear with the center line of the mortar cup, and a scale is arranged on the standard test cone, and the scale matches the distance that the standard test cone descends in the mortar.

[0006] However, during the implementation of the above scheme, there are at least the following technical problems: the traditional mortar consistency measurement usually requires manual stirring, loading of mortar samples, and multiple measurements. The whole process is cumbersome and time-consuming. At the same time, the mortar sample may not be dense enough due to the presence of air bubbles, which affects the accuracy of the consistency measurement. Therefore, it is urgent to propose a mortar consistency measurement device and measurement method. Summary of the invention

[0007] In view of the above technical problems, the present disclosure provides a mortar consistency measuring device and method, which solves the technical problems in the prior art that manual stirring and loading of mortar samples are required, the process is cumbersome and time-consuming, and the mortar samples may not be dense enough due to the presence of air bubbles, affecting the accuracy of consistency measurement.

[0008] According to one aspect of the present disclosure, a portable mortar consistency measuring device is provided, including a mortar mixing structure, a mortar outlet is arranged at the bottom of the mortar mixing structure, a plurality of containers are received below the mortar outlet, a telescopic rod is arranged on the left side of the container, a fixed bracket is installed at the movable end of the telescopic rod, and a test cone is installed at the end of the fixed bracket via a limiting structure; a rotating disc is arranged below the container to drive containers at different positions to move to the mortar outlet, and a vibration structure is installed below the rotating disc via a chassis to tightly stack the mortar in the container.

[0009] In some embodiments of the present disclosure, the container is conical.

[0010] In some embodiments of the present disclosure, the limiting structure includes a braking screw.

[0011] In some embodiments of the present disclosure, the mortar mixing structure includes a mixing barrel, a mortar inlet is arranged above the mixing barrel, a mixing shaft is arranged through the middle part, a plurality of mixing paddles are installed around the outside of the mixing shaft, and the end is connected to a mixing chain through a mixing gear, and the other end of the mixing chain is connected to a mixing main gear, and the mixing main gear is installed with a power output shaft of a mixing motor.

[0012] In some embodiments of the present disclosure, a disc motor is installed on the rotating disc to drive its rotation, and a protrusion is provided under the rotating disc to engage with a disc track to enable the rotating disc to move along the track path.

[0013] In some embodiments of the present disclosure, the vibration structure includes a motor, a main gear is installed on the power output shaft of the motor, the main gear is transmitted to the slave gear through a rack, a rotating shaft is provided through the center of the slave gear, an eccentric wheel is installed on the outside of the rotating shaft, the outer surface of the eccentric wheel is in friction contact with a U-shaped part, and the U-shaped part is rotatably connected to the mounting plate under the chassis.

[0014] The bowl holder is detachably mounted in the container; the bowl holder comprises an inner bowl holder and an outer bowl holder which are concentrically mounted, and ventilation holes are arranged on the inner bowl holder and the outer bowl holder; a hook is arranged on the outer side of the bowl holder to hang rock blocks simulating surrounding rocks, so as to simulate the hardness of the rock layer.

[0015] A mortar consistency measuring method, applicable to the above-mentioned mortar consistency measuring device, comprises the following steps: S1: Mortar stirring: add mortar into the mixing barrel through the mortar inlet, and start the stirring motor until it reaches a uniform state; S2: Mortar discharge: open the mortar outlet to allow the mixed mortar to flow into the first container; start the disc motor to drive the rotating disc to rotate, and switch the next empty container to the bottom of the mortar outlet to continue filling; S3: Vibration compaction: Turn on the motor and make the container vibrate back and forth through the vibration structure, so that the mortar in the container becomes compact and free of bubbles; S4: Consistency test: Use the telescopic rod to adjust the height of the test cone, open the fixed bracket to a horizontal state, and fix the position with the brake screw; loosen the brake screw, slide the test cone downward until it touches the mortar surface, and record the scale value on the test cone; then loosen the test cone, and record the scale value on the test cone after 10 seconds; the difference between the two measured scale values ​​is the consistency value of the mortar; Repeat the above steps until all samples have completed the consistency test.

[0016] In some embodiments of the present disclosure, the vibration compaction in step S3 also includes the following steps: starting the motor, driving the slave gear to rotate through the cooperation of the main gear and the rack, thereby rotating the shaft, and rotating the eccentric wheel on the transmission shaft. During the rotation of the eccentric wheel, its outer surface contacts the U-shaped part, so that the U-shaped part drives the mounting plate to vibrate reciprocatingly.

[0017] The step S2 also includes disassembling the bowl tray: taking out the installed bowl tray in the container to test the setting time and material strength, simulating the hardness of the rock layer by hanging rocks simulating different surrounding rock conditions through hooks, and installing the next bowl tray in conjunction with the pressure fan, rotating the inner bowl tray and the outer bowl tray so that the ventilation holes thereon are staggered to achieve sealing of the bowl tray.

[0018] The beneficial effects of the present invention are: 1. The mortar mixing structure ensures that the mortar raw materials can be evenly mixed to avoid deviations in consistency test results caused by uneven mixing. Uniform mortar helps improve the consistency and accuracy of the test. Power is transmitted through gears and chains to ensure the continuity and stability of the mixing process. It helps to achieve efficient mixing, reduce mixing time, and improve work efficiency. The container makes it easy to quickly introduce the mixed mortar into the container, simplifying the operation process and reducing human errors in the mortar transfer process.

[0019] 2. The telescopic rod can flexibly adjust the height of the test cone, and the fixed bracket ensures that the test cone remains stable during the test, thereby improving the accuracy and consistency of the measurement. The position of the test cone is precisely controlled by the brake screw to ensure that the height of the test cone is consistent during each test, reducing the influence of human factors and improving the repeatability of the test results.

[0020] 3. The rotating disc automatically switches containers at different positions to the bottom of the mortar outlet, realizing automatic loading, reducing manual intervention, and improving work efficiency and convenience of operation. The disc track ensures that the rotating disc moves smoothly along the predetermined path, avoiding shaking or deviation during movement, and improving the stability and reliability of the equipment.

[0021] 4. The vibration structure makes the mortar compact, removes internal air bubbles, and improves the density of the mortar, thereby ensuring the accuracy of the consistency test. The power of the motor is transmitted to the shaft through the gear transmission system to ensure the stability and efficiency of the vibration process. The design of the eccentric wheel makes the vibration more uniform and controllable, which helps to evenly compact the mortar and improve the consistency of the test results. The U-shaped piece contacts the surface of the eccentric wheel, and drives the mounting plate under the chassis to vibrate through reciprocating vibration, thereby effectively compacting the mortar in the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a mortar consistency measuring device; Figure 2 It is a schematic diagram of another perspective of the mortar consistency measuring device; Figure 3 It is a structural schematic diagram of another perspective of the mortar consistency measuring device; Figure 4 It is a top view of the mortar consistency measuring device; Figure 5 for Figure 4 Sectional view of the middle AA plane; Figure 6 This is a schematic diagram of the bowl holder structure; Figure 7 for Figure 6 Middle BB plane section view; The names of the components in the figure are: 1. mortar mixing structure; 2. mortar outlet; 3. container; 4. telescopic rod; 5. fixed bracket; 6. limit structure; 7. test cone; 8. rotating disc; 9. chassis; 10. vibration structure; 11. mixing barrel; 12. mortar inlet; 13. mixing shaft; 14. mixing paddle; 15. mixing slave gear; 16. mixing chain; 17. mixing main gear; 18. mixing motor; 19. disc motor; 20. protrusion; 21. disc track; 22. motor; 23. main gear; 24. rack; 25. slave gear; 26. rotating shaft; 27. eccentric wheel; 28. U-shaped piece; 29. ​​mounting plate; 30. bowl support; 31. inner bowl support; 32. outer bowl support; 33. vent; 34. hook. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example 1

[0024] This example discloses a portable mortar consistency measuring device, see Figures 1 to 7 , including a mortar mixing structure 1, a mortar outlet 2 is arranged at the bottom of the mortar mixing structure 1, a plurality of containers 3 are received below the mortar outlet 2, a telescopic rod 4 is arranged on the left side of the container 3, a fixed bracket 5 is installed at the movable end of the telescopic rod 4, and a test cone 7 is installed at the end of the fixed bracket 5 through a limiting structure 6; a rotating disc 8 is arranged below the container 3 to drive the containers 3 at different positions to move to the mortar outlet 2, and a vibration structure 10 is installed below the rotating disc 8 through a chassis 9 to tightly stack the mortar in the container 3.

[0025] The container 3 is conical.

[0026] The limiting structure 6 includes a braking screw.

[0027] The mortar mixing structure 1 includes a mixing barrel 11, a mortar inlet 12 is arranged above the mixing barrel 11, a mixing shaft 13 is arranged through the middle, a plurality of mixing paddles 14 are installed around the outside of the mixing shaft 13, and the end is connected to a mixing chain 16 through a mixing slave gear 15, and the other end of the mixing chain 16 is connected to a mixing main gear 17, and the mixing main gear 17 is installed with a power output shaft of a mixing motor 18.

[0028] A disc motor 19 is installed on the rotating disc 8 to drive the rotating disc 8 to rotate. A protrusion 20 is arranged below the rotating disc 8 and a disc track 21 is installed to engage with the rotating disc 8 so as to move the rotating disc 8 along the track path.

[0029] The vibration structure 10 includes a motor 22, a main gear 23 is installed on the power output shaft of the motor 22, the main gear 23 is transmitted to the slave gear 25 through the rack 24, a rotating shaft 26 is provided through the center of the slave gear 25, an eccentric wheel 27 is installed outside the rotating shaft 26, the outer surface of the eccentric wheel 27 is in friction contact with a U-shaped part 28, and the U-shaped part 28 is rotatably connected to the mounting plate 29 below the chassis 9.

[0030] A bowl holder 30 is detachably installed in the container 3; the bowl holder 30 includes an inner bowl holder 31 and an outer bowl holder 32 which are concentrically mounted, and ventilation holes 33 are provided on the inner bowl holder 31 and the outer bowl holder 32; a hook 34 is provided on the outer side of the bowl holder 30 to hang rocks simulating surrounding rocks to simulate the hardness of the rock layer.

[0031] A mortar consistency measuring method, applicable to the above-mentioned mortar consistency measuring device, comprises the following steps: S1: Mortar stirring: add mortar into the mixing barrel through the mortar inlet, and start the stirring motor until it reaches a uniform state; S2: Mortar discharge: open the mortar outlet to allow the mixed mortar to flow into the first container; start the disc motor to drive the rotating disc to rotate, and switch the next empty container to the bottom of the mortar outlet to continue filling; S3: Vibration compaction: Turn on the motor and make the container vibrate back and forth through the vibration structure, so that the mortar in the container becomes compact and free of bubbles; S4: Consistency test: Use the telescopic rod to adjust the height of the test cone, open the fixed bracket to a horizontal state, and fix the position with the brake screw; loosen the brake screw, slide the test cone downward until it touches the mortar surface, and record the scale value on the test cone; then loosen the test cone, and record the scale value on the test cone after 10 seconds; the difference between the two measured scale values ​​is the consistency value of the mortar; Repeat the above steps until all samples have completed the consistency test.

[0032] The vibration compaction in step S3 also includes the following steps: starting the motor, driving the slave gear to rotate through the cooperation of the main gear and the rack, thereby rotating the shaft, and rotating the eccentric wheel on the transmission shaft. During the rotation of the eccentric wheel, its outer surface contacts the U-shaped part, so that the U-shaped part drives the mounting plate to vibrate reciprocatingly.

[0033] The step S2 also includes disassembling the bowl tray: taking out the installed bowl tray in the container to test the setting time and material strength, simulating the hardness of the rock layer by hanging rocks simulating different surrounding rock conditions through hooks, and installing the next bowl tray in conjunction with the pressure fan, rotating the inner bowl tray and the outer bowl tray so that the ventilation holes thereon are staggered to achieve sealing of the bowl tray.

[0034] Although some preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A mortar consistency measuring device, characterized in that: It comprises a mortar mixing structure, a mortar outlet is arranged at the bottom of the mortar mixing structure, a plurality of containers are received below the mortar outlet, a telescopic rod is arranged on the left side of the container, a fixed bracket is installed at the movable end of the telescopic rod, and a test cone is installed at the end of the fixed bracket through a limiting structure; a rotating disc is arranged below the container to drive containers at different positions to move to the mortar outlet, and a vibration structure is installed below the rotating disc through a chassis to tightly stack the mortar in the container.

2. The portable mortar consistency measuring device according to claim 1, characterized in that: The containing container is conical.

3. The portable mortar consistency measuring device according to claim 1, characterized in that: The limiting structure includes a braking screw.

4. The portable mortar consistency measuring device according to claim 1, characterized in that: The mortar mixing structure includes a mixing barrel, a mortar inlet is arranged above the mixing barrel, a mixing shaft is arranged through the middle part, a plurality of mixing paddles are installed around the outer side of the mixing shaft, and the end is connected to a mixing chain through a mixing gear. The other end of the mixing chain is connected to a mixing main gear, and the mixing main gear is installed with a power output shaft of a mixing motor.

5. The portable mortar consistency measuring device according to claim 1, characterized in that: A disc motor is installed on the rotating disc to drive the rotating disc to rotate. A protrusion is arranged below the rotating disc to engage with a disc track to enable the rotating disc to move along the track path.

6. The portable mortar consistency measuring device according to claim 1, characterized in that: The vibration structure includes a motor, a main gear is installed on the power output shaft of the motor, the main gear is transmitted to the slave gear through a rack, a rotating shaft is set through the center of the slave gear, an eccentric wheel is installed on the outside of the rotating shaft, the outer surface of the eccentric wheel is in friction contact with a U-shaped part, and the U-shaped part is rotatably connected to the mounting plate under the chassis.

7. The portable mortar consistency measuring device according to claim 1, characterized in that: The bowl holder is detachably mounted in the container; the bowl holder comprises an inner bowl holder and an outer bowl holder which are concentrically mounted, and ventilation holes are arranged on the inner bowl holder and the outer bowl holder; a hook is arranged on the outer side of the bowl holder to hang rock blocks simulating surrounding rocks, so as to simulate the hardness of the rock layer.

8. A method for measuring mortar consistency, applicable to the mortar consistency measuring device according to any one of claims 1 to 6, characterized in that: The steps include: S1: Mortar stirring: add mortar into the mixing barrel through the mortar inlet, and start the stirring motor until it reaches a uniform state; S2: mortar discharge: open the mortar outlet to allow the mixed mortar to flow into the first container; Start the disc motor to drive the rotating disc to rotate, and switch the next empty container to the bottom of the mortar outlet to continue filling; S3: Vibration compaction: Turn on the motor and make the container vibrate back and forth through the vibration structure, so that the mortar in the container becomes compact and free of bubbles; S4: Consistency test: Use the telescopic rod to adjust the height of the test cone, open the fixed bracket to a horizontal state, and fix the position with the brake screw; loosen the brake screw, slide the test cone downward until it touches the mortar surface, and record the scale value on the test cone; then loosen the test cone, and record the scale value on the test cone after 10 seconds; the difference between the two measured scale values ​​is the consistency value of the mortar; Repeat the above steps until all samples have completed the consistency test.

9. The portable mortar consistency determination method according to claim 8, characterized in that: The vibration compaction in step S3 also includes the following steps: starting the motor, driving the slave gear to rotate through the cooperation of the main gear and the rack, thereby rotating the shaft, and rotating the eccentric wheel on the transmission shaft. During the rotation of the eccentric wheel, its outer surface contacts the U-shaped part, so that the U-shaped part drives the mounting plate to vibrate reciprocatingly.

10. The portable mortar consistency measuring method according to claim 8, characterized in that: The step S2 also includes disassembling the bowl tray: taking out the installed bowl tray in the container to test the setting time and material strength, simulating the hardness of the rock layer by hanging rocks simulating different surrounding rock conditions through hooks, and installing the next bowl tray in conjunction with the pressure fan, rotating the inner bowl tray and the outer bowl tray so that the ventilation holes thereon are staggered to achieve sealing of the bowl tray.

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