High polymer slurry viscosity detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a high polymer slurry viscosity detection device which comprises a shell, a rotating shaft is arranged on the shell in a penetrating manner, a motor for driving the rotating shaft to rotate is arranged in the shell, and a rotor coaxial with the rotating shaft is mounted at the outer end of the rotating shaft. The rotating shaft is provided with a torque detection device used for detecting the torque, the shell is provided with a laser range finder, the shell is internally provided with a displacement device used for driving the rotor to move, and the shell is provided with a control display panel. The torque detection device, the laser range finder and the displacement device are electrically connected with the control display panel; and the depth of the rotor extending into the slurry is kept consistent through the laser range finder, so that the measured value is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and particularly relates to a viscosity detection device for polymer slurries. Background Art

[0002] In recent years, the two-component polyurethane polymer grouting material with self-expansion characteristics and its high-pressure injection technology have developed very rapidly internationally and become one of the more active development directions in the field of chemical grouting. Currently, it has been widely used in the prevention and control of rock mass water disasters. The principle is to inject the two-component polymer material into the rock mass fissures and utilize the characteristics that the polymer material rapidly expands and solidifies after a chemical reaction to achieve the purpose of filling voids, blocking leakage channels, and preventing water disasters; the viscosity of the expansive polymer slurry, as a key rheological characteristic parameter, is of great significance for polymer grouting construction. It will affect the fluidity, adhesiveness, and compactness of the slurry, and further affect the repair effect and engineering quality; accurately measuring the viscosity change of the expansive polymer slurry and mastering its viscosity change law can provide support and guidance for the engineering application of polymer grouting; currently, the commonly used viscometer is a digital rotational viscometer, which cannot automatically control the depth of the rotor in the slurry. As the chemical reaction progresses, the volume of the expansive polymer slurry continuously expands and rises in the container. If the rotor still remains in the original position at this time, there will be a large error in the measured viscosity value.

[0003] A solution depth detection mechanism for a high-temperature viscometer with the publication number of CN218098756U discloses a crucible support plate. A caliper is connected to the crucible support plate, a digital vernier is connected to the caliper, the digital vernier is connected to a sensor support, a force-sensitive sensor is installed on the sensor support, a docking rod is connected to the bottom end of the force-sensitive sensor, an S-shaped hook is connected to the bottom end of the docking rod, and a rotating rod is connected to the bottom end of the S-shaped hook. The rotating rod penetrates downward through the crucible support plate and is connected to the rotor; although the disclosed structure has a rotor that can float up and down for more accurate detection, it is not convenient to operate, and the control of the detection depth is not very stable. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: when detecting the viscosity of a polymer, the detection rotor cannot move up and down, and the depth of penetration cannot be accurately controlled.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] First, a device for detecting the viscosity of a polymer slurry is provided, including a housing. A rotating shaft passes through the housing, and a motor for driving the rotation of the rotating shaft is arranged inside the housing. A coaxial rotor is installed at the outer end of the rotating shaft. A torque detection device for detecting the magnitude of torque is arranged on the rotating shaft. A laser rangefinder is arranged on the housing, and a displacement device for driving the movement of the rotor is arranged inside the housing. A control display panel is arranged on the housing. The torque detection device, the laser rangefinder, and the displacement device are electrically connected to the control display panel.

[0007] Further, the torque detection device includes two disks arranged in parallel. An elastic hairspring is arranged between the disks, and a sensor for detecting the offset is arranged between the disks. When the torque received by the rotating shaft becomes larger, the offset between the two disks will become larger at this time. The offset can be detected by the sensor, and the magnitude of the torque received by the rotating shaft can be obtained through analysis and calculation, and then the viscosity of the slurry can be obtained.

[0008] Further, the rotating shaft is coaxially arranged with the disk. By coaxially arranging the disk and the rotating shaft, the stability of the device during use can be ensured.

[0009] Further, the displacement device includes an electric telescopic rod, and an electric telescopic rod is arranged between the motor and the rotating shaft. The telescopic movement of the electric telescopic rod can drive the movement of the rotating shaft, thereby changing the depth of the rotor extending into the slurry.

[0010] Further, a linear bearing is arranged between the rotating shaft and the housing. The use of the linear bearing can ensure that the rotating shaft moves more stably.

[0011] Further, a mark flush with the liquid level of the slurry is arranged on the rotor. The use of the mark can ensure that the depth of the rotor extending into the slurry remains consistent.

[0012] Further, a support rod is installed on the housing, and several uniformly distributed support feet are installed at the bottom of the support rod.

[0013] Further, the connection between the rotor and the rotating shaft is detachable. Different models of rotors can be replaced according to needs, so that the device can adapt to more different models of slurries.

[0014] When the rotor does not extend deep into the slurry, the torque exerted on the rotating shaft and the rotor can be ignored. When the rotor extends into the slurry, since the slurry has a certain viscosity, the rotor will be subjected to resistance from the slurry when rotating, which increases the torque on the rotating shaft. At this time, the torque detection device measures the magnitude of the torque on the rotating shaft. Through data analysis and calculation, the resistance of the slurry to the rotor can be obtained, and then the viscosity of the slurry can be determined. The greater the viscosity of the slurry, the greater the torque on the rotating shaft, and vice versa.

[0015] The utility model has the following beneficial effects: The utility model can obtain the change of the slurry liquid level height in real time through a laser rangefinder, convert the change of the slurry height into an electrical signal and feedback it to the electric telescopic rod, control the automatic rise or fall of the rotor, and ensure that the slurry liquid level is always at the marked position of the rotor during the measurement process, improving the accuracy of the viscosity detection of the slurry by this device; moreover, this device has a simple structure, is easy to operate, and the detection results are accurate, making it suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 is the structural schematic diagram of this embodiment;

[0018] Figure 2 is the sectional view of this embodiment;

[0019] Figure 3 is the internal structural schematic diagram of the housing of this embodiment;

[0020] Figure 4 is the structural schematic diagram of the rotor of this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to better explain the present utility model for easy understanding, the following will describe the present utility model in detail through specific embodiments with reference to the drawings.

[0022] It should be noted that all the directional indications in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0023] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The present utility model provides a device for detecting the viscosity of a polymer slurry, as Figure 1 and Figure 2 shown, which includes a housing 10. A rotating shaft 20 is rotatably installed in the housing 10, and a motor 21 for driving the rotation of the rotating shaft 20 is installed in the housing 10. One end of the rotating shaft 20 passes through the bottom of the housing 10 to form an outer end, and a coaxial rotor 22 is provided at the outer end of the rotating shaft 20. The rotor 22 extends into the slurry to be detected. When the motor 21 operates, the rotor 22 is driven to rotate through the rotating shaft 20. In this embodiment, a torque detection device is provided on the rotating shaft 20 to detect the magnitude of the torque received by the rotating shaft 20.

[0026] Specifically, when the rotor 22 does not extend into the slurry, the torque received by the rotating shaft 20 and the rotor 22 during rotation can be ignored. When the rotor 22 extends into the slurry, since the slurry has a certain viscosity, the rotor 22 is subject to resistance from the slurry during rotation at this time, thereby increasing the torque received by the rotating shaft 20 during rotation. At this time, the torque detection device detects the magnitude of the torque received by the rotating shaft 20. Through data analysis and calculation, the magnitude of the resistance of the slurry to the rotor 22 can be obtained, and then the viscosity of the slurry can be obtained. The greater the viscosity of the slurry, the greater the torque received by the rotating shaft, and vice versa, the smaller the torque received.

[0027] As Figure 2 and Figure 3As shown, the torque detection device includes a hairspring 23 and two relatively arranged discs 24. In this embodiment, two discs 24 are arranged in parallel on the rotating shaft 20, and the two discs 24 are connected by a hairspring 23. The discs 24 are coaxially arranged with the rotating shaft 20. When the rotating shaft 20 rotates, it first drives the disc 24 near the motor 21 to rotate, and then drives the other disc 24 to rotate through the hairspring 23. When the other disc 24 rotates, it drives the remaining part of the rotating shaft 24 and the rotor 22 to rotate. When the rotor 22 does not extend into the slurry, the deformation of the hairspring 23 can be ignored at this time. After the rotor 22 extends into the slurry, due to a certain resistance, the hairspring 23 will have a certain deformation at this time, and the two discs 24 will be misaligned. An angular displacement sensor 25 is arranged between the discs 24 to detect the amount of the offset angle between the two discs 24, so as to obtain the torque magnitude received by the rotating shaft 20, and further calculate the viscosity magnitude of the slurry. The angular displacement sensor 25 can detect the offset amount between the two discs. The larger the offset amount between the two discs, the greater the torque received, and the greater the viscosity of the slurry. On the contrary, the viscosity of the slurry is smaller.

[0028] In order to ensure that the depth of the rotor 22 extending into the slurry remains consistent, an electric telescopic rod 26 is arranged between the motor 21 and the rotating shaft 20. The telescopic movement of the electric telescopic rod 26 can drive the rotating shaft 20 to move. A linear bearing 27 is arranged between the rotating shaft 20 and the housing 10 to ensure that the electric telescopic rod 26 drives the rotating shaft 20 to move more stably. At the same time, a laser rangefinder 28 is arranged on the housing 10. The laser rangefinder 28 is used to detect the distance to the slurry surface. After knowing the distance to the slurry surface, the telescopic movement of the electric telescopic rod 26 at this time can ensure that the depth of the rotor 22 extending into the slurry is certain.

[0029] A control display panel is arranged on the housing 10. The motor 21, the angular displacement sensor 25 and the laser rangefinder 28 are electrically connected to the control display panel. By operating the control display panel, the device can be operated to detect the viscosity of the slurry, and the detected result can be displayed, which is convenient for subsequent work.

[0030] As Figure 4 shown, a mark 29 is arranged on the rotor 22, and the mark 29 is always flush with the slurry surface.

[0031] As Figure 1 and Figure 2As shown, in order to stably place the device, a base is provided on the outer shell 10. The base includes a support rod 11, and several evenly distributed support feet 12 are provided at the bottom of the support rod 11. Through the support feet 12, the outer shell 10 can be stably supported, facilitating the placement of the device at the slurry discharging location to measure the viscosity of the slurry. At the same time, the rotating shaft 20 and the rotor 22 are detachably connected, facilitating the selection of different models of rotors 22 according to different slurries.

[0032] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.

Claims

1. A polymer slurry viscosity detection device, characterized in that: The invention comprises a housing (10), a rotating shaft (20) passing through the housing (10), a motor (21) for driving the rotating shaft (20) to rotate being arranged inside the housing (10), a coaxial rotor (22) being mounted on the outer end of the rotating shaft (20), a torque detection device for detecting the magnitude of torque being arranged on the rotating shaft (20), a laser rangefinder (28) being arranged on the housing (10), a displacement device for driving the rotor (22) to move being arranged inside the housing (10), a control display panel being arranged on the housing (10), and the torque detection device, the laser rangefinder (28) and the displacement device being electrically connected to the control display panel.

2. A polymer slurry viscosity detection device according to claim 1, characterized in that: The torque detection device comprises two circular discs (24) arranged in parallel, an elastic hairspring (23) is arranged between the circular discs (24), and an angular displacement sensor (25) for detecting an offset is arranged between the circular discs (24).

3. A polymer slurry viscosity detection device according to claim 2, characterized in that: The rotating shaft (20) and the disc (24) are coaxially arranged.

4. A polymer slurry viscosity detection device according to claim 1, characterized in that: The displacement device comprises an electric telescopic rod (26), and the electric telescopic rod (26) is arranged between the motor (21) and the rotating shaft (20).

5. A polymer slurry viscosity detection device according to claim 1, characterized in that: A linear bearing (27) is provided between the rotating shaft (20) and the housing (10).

6. A polymer slurry viscosity detection device according to claim 1, characterized in that: The rotor (22) is provided with a mark (29) flush with the slurry liquid surface.

7. A polymer slurry viscosity detection device according to claim 1, characterized in that: A support rod (11) is installed on the housing (10), and a plurality of evenly distributed support feet (12) are installed at the bottom of the support rod (11).

8. A polymer slurry viscosity detection device according to claim 1, characterized in that: The rotor (22) and the rotating shaft (20) are detachably connected.

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