A device for measuring the density of a plug and a method for measuring the density of a plug having a simulated borehole function

Abstract

The application discloses a kind of stop density measuring device with analog blasthole function and its measuring method, including support component, the support component is used to support circumferential transposition component and linear drive component, the circumferential transposition component is used to adjust the position of lateral circumferential bottom support component so that bottom support component is located directly below linear drive component, the bottom support component is used to carry and connect air pressure measuring component;The application realizes the function of selecting corresponding size of bottom support component, air pressure measuring component and pressing component according to demand to simulate corresponding size of blasthole, also realizes the function of quick assembly of air pressure measuring component, also has the function of simulating blasthole internal environment, also realizes the function of automatic quick quantization measurement of blasthole stop density and pressure relationship, guarantees the accuracy of measurement result, also provides scientific basis for subsequent fine step blasting, is suitable for being widely promoted and used.

Description

Technical Field

[0001] This invention relates to the field of open-pit mine bench blasting technology, and in particular to a plugging density measuring device and method with a simulated blast hole function. Background Technology

[0002] In open-pit mine bench blasting operations, the role of packing is to enhance the blasting effect by improving the utilization rate of blasting energy. Because packing improves the utilization rate of blasting energy, the amount of explosives used can be appropriately reduced to achieve the same blasting effect, thus lowering blasting costs. The quality of packing directly affects blasting efficiency and safety, especially the density of the packing material, which determines the sealing effect on blasting gases.

[0003] Currently, the assessment of packing quality before blasting largely relies on visual inspection and experience, resulting in highly subjective assessments and a lack of quantitative standards. This leads to a lack of precise measurement of packing quality before blasting, requiring more explosives to achieve the same blasting effect. This not only increases the amount of explosives used but also seriously affects blasting efficiency and safety. Therefore, it is necessary to design a packing density measurement device and method that can simulate blast hole function. Summary of the Invention

[0004] The main objective of this invention is to address the current practice of relying heavily on visual inspection and experience to assess the quality of plugging before blasting. This leads to subjective results and a lack of quantitative standards, resulting in inaccurate measurement of plugging quality before blasting. Consequently, more explosives are needed to achieve the same blasting effect, increasing explosive usage and severely impacting blasting efficiency and safety. This invention provides a plugging density measuring device and method that simulates boreholes. It allows for the selection of appropriately sized base support components, air pressure measuring components, and pressure components to simulate boreholes of corresponding sizes. It also enables rapid assembly of the air pressure measuring components, simulates the internal environment of boreholes, and provides automated and rapid quantitative measurement of the relationship between borehole plugging density and pressure. This ensures the accuracy of the measurement results and provides a scientific basis for subsequent refined step blasting.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A device for measuring the density of blast hole blockage with simulated borehole function includes a support assembly for supporting a circumferential positioning assembly and a linear drive assembly. The circumferential positioning assembly is used to adjust the position of a bottom support assembly laterally so that the bottom support assembly is directly below the linear drive assembly. The bottom support assembly is used to support and connect an air pressure measuring assembly, which is used to simulate the corresponding borehole environment to measure the pressure value after borehole blockage, thereby obtaining borehole blockage density data. The linear drive assembly is used to linearly drive a downward pressure assembly to move longitudinally linearly, thereby applying pressure to the interior of the air pressure measuring assembly.

[0007] The aforementioned plugging density measuring device with simulated blast hole function includes a support plate, a support column on the outer wall of the bottom surface of the support plate, a groove on the outer wall of the support plate, and a limit hole on the inner wall of the top surface of the groove.

[0008] The aforementioned device for measuring the blockage density of a simulated borehole includes a servo motor in its circumferential positioning component. The servo motor is detachably connected to the inner wall of the bottom surface of the groove. The output shaft of the servo motor is connected to one end of a rotating shaft, and the other end of the rotating shaft is detachably connected to a rotating plate.

[0009] The aforementioned plugging density measuring device with simulated blast hole function includes a base plate as the base support assembly. The base plate is detachably connected to the upper surface of the rotating plate, wherein the upper surface of the base plate is provided with a first threaded groove.

[0010] The aforementioned plugging density measuring device with simulated blast hole function includes an electric hydraulic cylinder, which is detachably connected to the inner wall of the top surface of the groove. One end of the hydraulic telescopic rod is slidably connected to the inner wall of the electric hydraulic cylinder, and the other end of the hydraulic telescopic rod is detachably connected to a pressure plate. A limit rod is detachably connected to the upper surface of the pressure plate, and the outer wall of the limit rod is slidably connected to the inner wall of the limit hole.

[0011] The aforementioned plugging density measuring device with simulated blast hole function includes a pressure component comprising a connecting plate, which is detachably connected to the outer wall of the bottom surface of the pressure plate, wherein a solid column is provided on the outer wall of the bottom surface of the connecting plate.

[0012] The aforementioned plugging density measuring device with simulated borehole function includes an air pressure measuring component comprising a first cylinder, a sandwich cylinder, a second cylinder, and a third cylinder. The inner sidewall of the first cylinder is provided with a second threaded groove, and the inner sidewall of the second threaded groove is threadedly connected to the inner sidewall of the first threaded groove. The inner sidewall of the first cylinder is provided with a support ring, and the outer sidewall of the first cylinder is provided with a side groove, and the inner sidewall of the side groove is provided with a first thread.

[0013] The inner wall of the sandwich cylinder is provided with a simulated groove for the inner wall of a blast hole, and the outer wall of the sandwich cylinder is wedge-fitted with the inner wall of the first cylinder, wherein the sandwich cylinder can be limited by the support ring to the inner wall of the first cylinder.

[0014] The inner wall of the second cylinder is provided with a clamping groove, and the inner wall of the clamping groove is provided with a third threaded groove. The inner wall of the third threaded groove is threadedly connected to the outer wall of the first threaded line. The inner wall of the clamping groove is engaged with the outer wall of the sandwich cylinder. The inner wall of the second cylinder is provided with a first limiting groove. The inner wall of the first limiting groove is provided with a fourth threaded groove. The inner wall of the bottom surface of the first limiting groove is provided with a slot. The inner wall of the slot is provided with an insertion rod. The outer wall of the insertion rod is engaged with the inner wall of the insertion hole. The insertion hole is opened on the upper surface of the block. The outer wall of the block is engaged with the inner wall of the slot. There are two blocks. The outer wall of the two blocks that are close to each other is provided with a connecting shaft. The connecting shafts are connected by a cloth belt. The upper surface of the cloth belt is provided with a pressure sensor.

[0015] The outer wall of the third cylinder is provided with a second limiting groove, and the inner wall of the second limiting groove is provided with a second thread, wherein the second thread is threadedly connected to the inner wall of the fourth thread groove.

[0016] In the aforementioned plugging density measuring device with simulated borehole function, the outer wall of the solid column and the inner wall of the third cylinder are interlocked.

[0017] The aforementioned plugging density measuring device with simulated blast hole function has two bottom support components, and the two bottom support components are symmetrically distributed on the upper surface of the rotating plate.

[0018] A method for measuring the plugging density of a device with simulated borehole function includes the following steps:

[0019] Step 1: Select and connect the bottom support assembly and the pressure assembly as needed. Select the appropriate size bottom support assembly and air pressure measurement assembly according to the size of the simulated blast hole, and make a detachable connection between the base plate and the rotating plate. Then, select the appropriate size pressure assembly according to the size of the bottom support assembly, and make a detachable connection between the connecting plate and the pressure plate.

[0020] Step two: Assemble the air pressure measurement component. The specific steps are as follows:

[0021] S1. Move the first cylinder and align the first threaded groove with the second threaded groove. Then rotate the first cylinder and, under the action of the threaded connection between the first threaded groove and the second threaded groove, the first cylinder and the base plate can be detachably connected.

[0022] S2. Select a sandwich cylinder with a simulated groove for the inner wall of the simulated borehole according to the roughness of the simulated borehole inner wall. Then move the sandwich cylinder and wedge the outer wall of the sandwich cylinder with the inner wall of the first cylinder so that the outer wall of the bottom surface of the sandwich cylinder can be attached to the upper surface of the support plate, and thus the sandwich cylinder is placed inside the first cylinder.

[0023] S3. Move the second cylinder and align the clamping groove with the side groove. Then rotate the second cylinder and, under the action of the threaded connection between the third threaded groove and the first thread, the second cylinder and the first cylinder can be detachably connected. At the same time, under the action of the clamping groove, the core cylinder can be limited to the middle position between the support ring and the clamping groove.

[0024] S4. Move the card block and align the insertion hole with the insertion rod, then press the card block down along the inner wall of the slot so that the card block can be connected to the second cylinder under the action of the insertion rod and the insertion hole, thereby limiting the pressure sensor inside the second cylinder.

[0025] S5. Move the third cylinder and align the second limiting groove with the first limiting groove. Then rotate the third cylinder and, under the action of the threaded connection between the second thread and the fourth thread groove, the third cylinder and the second cylinder can be detachably connected, so that the clamping block can be clamped inside the second cylinder.

[0026] Step 3: Circular rotation and positioning. The filling material is filled into the sandwich cylinder. Then, the servo motor drives the rotating shaft to rotate, which in turn drives the rotating plate to rotate. This causes the bottom support assembly and the air pressure measurement assembly to rotate circumferentially to the position directly below the solid column. At the same time, under the action of the two bottom support assemblies set on the upper surface of the rotating plate, the blockage density can be measured while the filling material is loaded and unloaded and the air pressure measurement assembly is disassembled and replaced.

[0027] Step four, linear movement and pressing: the hydraulic telescopic rod is driven by the operation of the electric hydraulic cylinder to extend and slide, thereby driving the pressure plate to move linearly, which in turn drives the solid column to slide into the third cylinder. This allows the filling material to be pressed. At the same time, the pressure sensor can measure the pressure data of the filling material in a timely manner and output, display and record it.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. First, select and connect the base support assembly and the pressure assembly as needed. Then, select the appropriate size base support assembly and air pressure measurement assembly according to the size of the simulated blast hole, and make a detachable connection between the base plate and the rotating plate. Next, select the appropriate size pressure assembly according to the size of the base support assembly, and make a detachable connection between the connecting plate and the pressure plate. This effectively realizes the function of the device to simulate blast holes of the corresponding size by selecting the appropriate size base support assembly, air pressure measurement assembly and pressure assembly as needed. Moreover, the disassembly and assembly of each component of the device are relatively convenient. The device has a simple structure and strong applicability.

[0030] 2. First, move the first cylinder and align the first threaded groove with the second threaded groove. Then, rotate the first cylinder, and the threaded connection between the first and second threaded grooves allows for a detachable connection between the first cylinder and the base plate. Next, select a sandwich cylinder with simulated borehole inner wall grooves of corresponding roughness according to the roughness of the simulated borehole inner wall. Move the sandwich cylinder and wedge its outer wall with the inner wall of the first cylinder, thus fitting the outer wall of the bottom surface of the sandwich cylinder against the upper surface of the support plate, thereby placing the sandwich cylinder inside the first cylinder. Then, move the second cylinder and align the clamping groove with the side groove. Rotate the second cylinder, and the threaded connection between the third threaded groove and the first threaded line allows for a detachable connection between the second cylinder and the first cylinder. At the same time, the clamping groove limits the position of the sandwich cylinder. The device is positioned between the support ring and the clamping groove. The locking block is then moved to align the insertion hole with the insertion rod. The locking block is then pressed down along the inner wall of the groove, connecting it to the second cylinder through the wedge-like action of the insertion rod and insertion hole. This confines the pressure sensor inside the second cylinder. Finally, the third cylinder is moved to align the second limiting groove with the first limiting groove. The third cylinder is then rotated, and through the threaded connection between the second thread and the fourth thread groove, a detachable connection is established between the third cylinder and the second cylinder. This clamps the locking block inside the second cylinder, effectively enabling the device to quickly assemble the air pressure measurement component. The assembled air pressure measurement component exhibits high stability and also simulates the internal environment of a borehole, resulting in more accurate subsequent plugging density measurement data.

[0031] 3. The packing material is filled into the sandwich cylinder, and then the servo motor drives the rotating shaft to rotate, which in turn drives the rotating plate to rotate. This causes the bottom support assembly and the air pressure measuring assembly to rotate circumferentially to a position directly below the solid column. At the same time, under the action of the two bottom support assemblies set on the upper surface of the rotating plate, the packing material is loaded and unloaded, and the air pressure measuring assembly is disassembled and replaced. Then, the electric hydraulic cylinder drives the hydraulic telescopic rod to extend and slide, which drives the pressure plate to move linearly, and then drives the solid column to slide into the third cylinder. This allows the packing material to be pressed. At the same time, the pressure sensor can measure the pressure data of the packing material in a timely manner, and output, display and record it. This device effectively realizes the function of rapid quantitative measurement of the relationship between the packing density and pressure of the blast hole, and the entire measurement process is fully automated. This not only ensures the accuracy of the measurement results, but also improves the measurement efficiency. It provides a reference for improving the packing quality in subsequent bench blasting and provides a scientific basis for subsequent refined bench blasting. The device has a simple structure and good measurement effect. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the support component and the circumferential repositioning component of the present invention;

[0034] Figure 3 This is a schematic diagram of the linear drive component and the pressure-down component of the present invention;

[0035] Figure 4 This is a schematic diagram of the air pressure measurement component structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the second cylindrical structure of the present invention.

[0037] In the diagram: 1. Support assembly; 101. Support plate; 102. Support column; 103. Groove; 104. Limiting hole; 2. Circumferential positioning assembly; 201. Servo motor; 202. Rotating shaft; 203. Rotating plate; 3. Bottom support assembly; 301. Bottom plate; 302. First threaded groove; 4. Linear drive assembly; 401. Electric hydraulic cylinder; 402. Hydraulic telescopic rod; 403. Pressure plate; 404. Limiting rod; 5. Downward pressing assembly; 501. Connecting plate; 502. Solid column; 6. Air pressure measurement assembly; 601. First cylinder; 602. Support ring ; 603, Second threaded groove; 604, Side groove; 605, First threaded line; 606, Sandwich cylinder; 607, Simulation groove on the inner wall of the borehole; 608, Second cylinder; 609, Clamping groove; 6010, Third threaded groove; 6011, Locking block; 6012, Insertion hole; 6013, Third cylinder; 6014, Second limiting groove; 6015, Second threaded line; 6016, First limiting groove; 6017, Locking groove; 6018, Insert rod; 6019, Fourth threaded groove; 6020, Connecting shaft; 6021, Fabric tape; 6022, Pressure sensor. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figure 1-5 As shown, a device and method for measuring the plugging density of a borehole with simulated borehole function is disclosed. The device includes a support assembly 1, which supports a circumferential positioning assembly 2 and a linear drive assembly 4. The circumferential positioning assembly 2 adjusts the position of a bottom support assembly 3 laterally, positioning it directly below the linear drive assembly 4. The bottom support assembly 3 supports and connects to an air pressure measurement assembly 6, which simulates the corresponding borehole environment to measure the pressure value after plugging, thereby obtaining borehole plugging density data. The linear drive assembly 4 linearly drives a downward pressure assembly 5 to move longitudinally, applying pressure to the interior of the air pressure measurement assembly 6. This invention achieves rapid quantitative measurement of the relationship between borehole plugging density and pressure, and the entire measurement process is fully automated. This not only ensures the accuracy of the measurement results but also improves measurement efficiency, providing a reference for improving the filling quality during bench blasting and a scientific basis for subsequent refined bench blasting. The device has a simple structure and good measurement effect.

[0040] Specifically, the support assembly 1 includes a support plate 101, a support column 102 is provided on the outer wall of the bottom surface of the support plate 101, and a groove 103 is provided on the outer wall of the support plate 101. A limiting hole 104 is provided on the inner wall of the top surface of the groove 103. The stability of the linear movement of the pressure plate 403 and the solid column 502 is ensured by the sliding action of the limiting rod 404 along the limiting hole 104.

[0041] Specifically, the circumferential positioning component 2 includes a servo motor 201, which is detachably connected to the inner wall of the bottom surface of the groove 103. The output shaft of the servo motor 201 is connected to one end of a rotating shaft 202, and the other end of the rotating shaft 202 is detachably connected to a rotating plate 203. The servo motor 201 drives the rotating shaft 202 to rotate, thereby driving the rotating plate 203 to rotate, which in turn drives the bottom support component 3 and the air pressure measuring component 6 to rotate circumferentially to a position directly below the solid column 502.

[0042] Specifically, the base support assembly 3 includes a base plate 301, which is detachably connected to the upper surface of the rotating plate 203. The upper surface of the base plate 301 is provided with a first threaded groove 302. By selecting a base support assembly 3 and an air pressure measuring assembly 6 of the appropriate size according to the size of the simulated gun hole and detachably connecting the base plate 301 and the rotating plate 203, the base support assembly 3 and the circumferential positioning assembly 2 can be detachably connected.

[0043] Specifically, the linear drive assembly 4 includes an electric hydraulic cylinder 401, which is detachably connected to the inner wall of the top surface of the groove 103. One end of a hydraulic telescopic rod 402 is slidably connected to the inner wall of the electric hydraulic cylinder 401, and the other end of the hydraulic telescopic rod 402 is detachably connected to a pressure plate 403. A limit rod 404 is detachably connected to the upper surface of the pressure plate 403, and the outer wall of the limit rod 404 is slidably connected to the inner wall of the limit hole 104. By operating the electric hydraulic cylinder 401, the hydraulic telescopic rod 402 is driven to extend and slide, thereby driving the pressure plate 403 to move linearly, which in turn drives the solid column 502 to slide into the third cylinder 6013. This allows the filling material to be pressed. At the same time, the pressure sensor 6022 can measure the pressure data borne by the filling material in a timely manner and output, display, and record it.

[0044] Specifically, the pressing component 5 includes a connecting plate 501, which is detachably connected to the outer wall of the bottom surface of the pressure plate 403. A solid column 502 is provided on the outer wall of the bottom surface of the connecting plate 501. By selecting a pressing component 5 of the appropriate size according to the size of the bottom support component 3 and detachably connecting the connecting plate 501 and the pressure plate 403, the pressing component 5 can be detachably connected to the linear drive component 4.

[0045] Specifically, the air pressure measurement assembly 6 includes a first cylinder 601, a sandwich cylinder 606, a second cylinder 608, and a third cylinder 6013. The inner wall of the first cylinder 601 has a second threaded groove 603, and the inner wall of the second threaded groove 603 is threadedly connected to the inner wall of the first threaded groove 602. The inner wall of the first cylinder 601 is provided with a support ring 602, and the outer wall of the first cylinder 601 has a side groove 604, and the inner wall of the side groove 604 has a first thread 605. The inner wall of the sandwich cylinder 606 has a simulated borehole inner wall groove 607, and the outer wall of the sandwich cylinder 608 is threadedly connected to the inner wall of the first cylinder 601. The inner walls of the cylinder 601 are wedged together, wherein the sandwich cylinder 606 can be limited by the support ring 602 to the inner wall of the first cylinder 601; the inner wall of the second cylinder 608 is provided with a clamping groove 609, and the inner wall of the clamping groove 609 is provided with a third threaded groove 6010, and the inner wall of the third threaded groove 6010 is threadedly connected to the outer wall of the first thread 605, wherein the inner wall of the clamping groove 609 and the outer wall of the sandwich cylinder 606 are wedged together; the inner wall of the second cylinder 608 is provided with a first limiting groove 6016, and the inner wall of the first limiting groove 6016 is provided with a fourth threaded groove 6019, and the first limiting groove 601... A slot 6017 is formed on the inner wall of the bottom surface of the 6th component. A rod 6018 is provided on the inner side wall of the slot 6017. The outer side wall of the rod 6018 engages with the inner side wall of the insertion hole 6012. The insertion hole 6012 is located on the upper surface of the locking block 6011. The outer side wall of the locking block 6011 engages with the inner side wall of the slot 6017. There are two locking blocks 6011, and a connecting shaft 6020 is provided on the outer wall of the side of the two locking blocks 6011 that are close to each other. The connecting shafts 6020 are connected by a cloth tape 6021, and a pressure sensor 6022 is provided on the upper surface of the cloth tape 6021. The outer side wall of the third cylinder 6013 is provided with a second limiting groove 6014, and the inner side wall of the second limiting groove 6014 is provided with a second thread 6015. The second thread 6015 is threadedly connected to the inner side wall of the fourth thread groove 6019. By moving the third cylinder 6013 and aligning the second limiting groove 6014 with the first limiting groove 6016, and then rotating the third cylinder 6013, the third cylinder 6013 and the second cylinder 608 can be detachably connected under the action of the threaded connection between the second thread 6015 and the fourth thread groove 6019, thereby clamping the locking block 6011 inside the second cylinder 608.

[0046] Specifically, the outer wall of the solid column 502 and the inner wall of the third cylinder 6013 are interlocked, and the interlocking of the outer wall of the solid column 502 and the inner wall of the third cylinder 6013 enables the density measurement of the filling material.

[0047] Specifically, there are two bottom support components 3, and the two bottom support components 3 are symmetrically distributed on the upper surface of the rotating plate 203. Under the action of the two bottom support components 3 provided on the upper surface of the rotating plate 203, the blockage density can be measured at the same time, and the filling material can be loaded and unloaded, and the air pressure measurement component 6 can be disassembled and replaced.

[0048] A method for measuring the plugging density of a device with simulated borehole function includes the following steps:

[0049] Step 1: Select and connect the bottom support assembly 3 and the pressure assembly 5 as needed. Select the bottom support assembly 3 and the air pressure measuring assembly 6 of the corresponding size according to the size of the simulated blast hole, and make a detachable connection between the bottom plate 301 and the rotating plate 203. Then, select the pressure assembly 5 of the corresponding size according to the size of the bottom support assembly 3, and make a detachable connection between the connecting plate 501 and the pressure plate 403. Thus, the present invention has the function of simulating a blast hole of the corresponding size by selecting the bottom support assembly 3, the air pressure measuring assembly 6 and the pressure assembly 5 of the corresponding size as needed, and the disassembly and assembly of each component of the device is also relatively convenient.

[0050] Step 2: Assemble the air pressure measurement component 6. The specific steps are as follows:

[0051] S1. Move the first cylinder 601 and align the first threaded groove 302 with the second threaded groove 603. Then rotate the first cylinder 601 and, under the effect of the threaded connection between the first threaded groove 302 and the second threaded groove 603, the first cylinder 601 and the base plate 301 can be detachably connected, so that the present invention has the function of detachably connecting the first cylinder 601 and the base plate 301.

[0052] S2. Select a sandwich cylinder 606 with a simulated borehole inner wall groove 607 of corresponding roughness according to the roughness of the simulated borehole inner wall. Then move the sandwich cylinder 606 and wedge the outer wall of the sandwich cylinder 606 with the inner wall of the first cylinder 601 so that the bottom outer wall of the sandwich cylinder 606 can be attached to the upper surface of the support plate 101, thereby placing the sandwich cylinder 606 inside the first cylinder 601. Thus, the present invention has the function of placing the sandwich cylinder 606 inside the first cylinder 601.

[0053] S3. Move the second cylinder 608 and align the clamping groove 609 with the side groove 604. Then rotate the second cylinder 608 and, under the action of the threaded connection between the third threaded groove 6010 and the first thread 605, the second cylinder 608 and the first cylinder 601 can be detachably connected. At the same time, under the action of the clamping groove 609, the core cylinder 606 can be limited to the middle position between the support ring 602 and the clamping groove 609, so that the present invention has the function of detachably connecting the second cylinder 608 and the first cylinder 601.

[0054] S4. Move the locking block 6011 and align the insertion hole 6012 with the insertion rod 6018. Then, press the locking block 6011 down along the inner wall of the slot 6017 so that the locking block 6011 can be connected to the second cylinder 608 under the action of the insertion rod 6018 and the insertion hole 6012 engaging with each other. This will limit the pressure sensor 6022 inside the second cylinder 608, thus enabling the present invention to limit the pressure sensor 6022 inside the second cylinder 608.

[0055] S5. Move the third cylinder 6013 and align the second limiting groove 6014 with the first limiting groove 6016. Then rotate the third cylinder 6013 and, under the action of the threaded connection between the second thread 6015 and the fourth thread groove 6019, the third cylinder 6013 and the second cylinder 608 can be detachably connected, thereby clamping the locking block 6011 inside the second cylinder 608. Thus, the present invention has the function of detachably connecting the third cylinder 6013 and the second cylinder 608.

[0056] Step 3: Circular rotation and positioning. The filling material is filled into the sandwich cylinder 606. Then, the servo motor 201 drives the rotating shaft 202 to rotate, which in turn drives the rotating plate 203 to rotate. This, in turn, drives the bottom support assembly 3 and the air pressure measuring assembly 6 to rotate circumferentially to a position directly below the solid column 502. At the same time, under the action of the two bottom support assemblies 3 set on the upper surface of the rotating plate 203, the blockage density can be measured while the filling material is loaded and unloaded and the air pressure measuring assembly 6 is disassembled and replaced. Thus, the present invention has the function of driving the bottom support assembly 3 and the air pressure measuring assembly 6 to rotate circumferentially to a position directly below the solid column 502.

[0057] Step four, linear movement and pressing: the electric hydraulic cylinder 401 drives the hydraulic telescopic rod 402 to extend and slide, thereby driving the pressure plate 403 to move linearly, which in turn drives the solid column 502 to slide into the third cylinder 6013. This allows the filling material to be pressed. At the same time, the pressure sensor 6022 can measure the pressure data borne by the filling material in a timely manner and output, display and record it. Thus, the present invention has the function of automated and rapid quantitative measurement of the relationship between the density of the blast hole plug and the pressure.

[0058] The electronic components used in this invention are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A plugging density measuring device with simulated borehole function, comprising a support assembly (1), characterized in that: The support component (1) is used to support the circumferential positioning component (2) and the linear drive component (4). The circumferential positioning component (2) is used to adjust the position of the bottom support component (3) in a horizontal circumferential direction so that the bottom support component (3) is located directly below the linear drive component (4). The bottom support component (3) is used to support and connect the air pressure measurement component (6). The air pressure measurement component (6) is used to simulate the corresponding borehole environment to measure the pressure value after the borehole is blocked, thereby obtaining the borehole blockage density data. The linear drive assembly (4) is used to linearly drive the pressure-down assembly (5) to move longitudinally linearly, thereby applying pressure to the inside of the air pressure measurement assembly (6) by the pressure-down assembly (5); The air pressure measurement assembly (6) includes a first cylinder (601), a sandwich cylinder (606), a second cylinder (608), and a third cylinder (6013). The inner wall of the first cylinder (601) is provided with a second threaded groove (603), and the inner wall of the second threaded groove (603) is threadedly connected to the inner wall of the first threaded groove (302). The inner wall of the first cylinder (601) is provided with a support ring (602), and the outer wall of the first cylinder (601) is provided with a side groove (604), and the inner wall of the side groove (604) is provided with a first thread (605). The inner wall of the sandwich cylinder (606) is provided with a simulated groove (607) for the inner wall of the blast hole. The outer wall of the sandwich cylinder (606) is wedged with the inner wall of the first cylinder (601). The sandwich cylinder (606) can be limited by the support ring (602) to the inner wall of the first cylinder (601). The inner wall of the second cylinder (608) is provided with a clamping groove (609), and the inner wall of the clamping groove (609) is provided with a third threaded groove (6010). The inner wall of the third threaded groove (6010) is threadedly connected to the outer wall of the first thread (605). The inner wall of the clamping groove (609) is wedged into the outer wall of the sandwich cylinder (606). The inner wall of the second cylinder (608) is provided with a first limiting groove (6016), and the inner wall of the first limiting groove (6016) is provided with a fourth threaded groove (6019). The inner wall of the bottom surface of the first limiting groove (6016) is provided with a retaining groove (6017). A plug rod (6018) is provided on the inner side wall of the 6017. The outer side wall of the plug rod (6018) is engaged with the inner side wall of the plug hole (6012). The plug hole (6012) is opened on the upper surface of the card block (6011). The outer side wall of the card block (6011) is engaged with the inner side wall of the card groove (6017). There are two card blocks (6011). A connecting shaft (6020) is provided on the outer side wall of the two card blocks (6011) that are close to each other. The connecting shafts (6020) are connected by a cloth tape (6021). A pressure sensor (6022) is provided on the upper surface of the cloth tape (6021). The outer side wall of the third cylinder (6013) is provided with a second limiting groove (6014), and the inner side wall of the second limiting groove (6014) is provided with a second thread (6015), wherein the second thread (6015) is threadedly connected to the inner side wall of the fourth thread groove (6019).

2. The plugging density measuring device with simulated borehole function according to claim 1, characterized in that: The support assembly (1) includes a support plate (101), a support column (102) is provided on the outer wall of the bottom surface of the support plate (101), and a groove (103) is provided on the outer wall of the support plate (101), wherein a limit hole (104) is provided on the inner wall of the top surface of the groove (103).

3. The plugging density measuring device with simulated borehole function according to claim 2, characterized in that: The circumferential positioning component (2) includes a servo motor (201), which is detachably connected to the inner wall of the bottom surface of the groove (103). The output shaft of the servo motor (201) is connected to one end of a rotating shaft (202), and the other end of the rotating shaft (202) is detachably connected to a rotating plate (203).

4. The plugging density measuring device with simulated borehole function according to claim 3, characterized in that: The bottom support assembly (3) includes a bottom plate (301), which is detachably connected to the upper surface of the rotating plate (203), wherein the upper surface of the bottom plate (301) is provided with a first threaded groove (302).

5. The plugging density measuring device with simulated borehole function according to claim 4, characterized in that: The linear drive assembly (4) includes an electric hydraulic cylinder (401), which is detachably connected to the inner wall of the top surface of the groove (103). One end of a hydraulic telescopic rod (402) is slidably connected to the inner wall of the electric hydraulic cylinder (401), and the other end of the hydraulic telescopic rod (402) is detachably connected to a pressure plate (403). The upper surface of the pressure plate (403) is detachably connected to a limiting rod (404), and the outer wall of the limiting rod (404) is slidably connected to the inner wall of the limiting hole (104).

6. The plugging density measuring device with simulated borehole function according to claim 5, characterized in that: The pressing assembly (5) includes a connecting plate (501), which is detachably connected to the outer wall of the bottom surface of the pressure plate (403), wherein a solid column (502) is provided on the outer wall of the bottom surface of the connecting plate (501).

7. The plugging density measuring device with simulated borehole function according to claim 6, characterized in that: The outer wall of the solid column (502) and the inner wall of the third cylinder (6013) are interlocked.

8. The plugging density measuring device with simulated borehole function according to claim 7, characterized in that: The number of the bottom support components (3) is two, and the two bottom support components (3) are symmetrically distributed on the upper surface of the rotating plate (203).

9. A measurement method for a plugging density measuring device with simulated borehole function as described in claim 8, characterized in that, Includes the following steps: Step 1: Select and connect the bottom support assembly (3) and the pressure assembly (5) as needed. Select the bottom support assembly (3) and the air pressure measurement assembly (6) of the appropriate size according to the size of the simulated blast hole. Make a detachable connection between the bottom plate (301) and the rotating plate (203). Then select the pressure assembly (5) of the appropriate size according to the size of the bottom support assembly (3) and make a detachable connection between the connecting plate (501) and the pressure plate (403). Step 2: Assemble the air pressure measurement component (6). The specific steps are as follows: S1. Move the first cylinder (601) and align the first threaded groove (302) with the second threaded groove (603). Then rotate the first cylinder (601) and, under the action of the threaded connection between the first threaded groove (302) and the second threaded groove (603), the first cylinder (601) and the base plate (301) can be detachably connected. S2. Select a sandwich cylinder (606) with a simulated borehole inner wall groove (607) of corresponding roughness according to the roughness of the simulated borehole inner wall. Then move the sandwich cylinder (606) and wedge the outer wall of the sandwich cylinder (606) with the inner wall of the first cylinder (601) so that the outer wall of the bottom surface of the sandwich cylinder (606) can be attached to the upper surface of the support plate (101), and thus the sandwich cylinder (606) is placed inside the first cylinder (601). S3. Move the second cylinder (608) and align the clamping groove (609) with the side groove (604). Then rotate the second cylinder (608) and, under the action of the threaded connection between the third threaded groove (6010) and the first thread (605), the second cylinder (608) and the first cylinder (601) can be detachably connected. At the same time, under the action of the clamping groove (609), the core cylinder (606) can be limited to the middle position between the support ring (602) and the clamping groove (609). S4. Move the locking block (6011) and align the insertion hole (6012) with the insertion rod (6018). Then, press the locking block (6011) down along the inner wall of the slot (6017) so that the locking block (6011) can be connected to the second cylinder (608) under the action of the insertion rod (6018) and the insertion hole (6012) engaging with each other, thereby limiting the pressure sensor (6022) inside the second cylinder (608). S5. Move the third cylinder (6013) and align the second limiting groove (6014) with the first limiting groove (6016). Then rotate the third cylinder (6013) and, under the action of the threaded connection between the second thread (6015) and the fourth thread groove (6019), the third cylinder (6013) and the second cylinder (608) can be detachably connected, so that the clamping block (6011) can be clamped inside the second cylinder (608). Step 3: Circular rotation and positioning. The filling material is filled into the sandwich cylinder (606). Then, the servo motor (201) drives the rotating shaft (202) to rotate, which in turn drives the rotating plate (203) to rotate. This drives the bottom support assembly (3) and the air pressure measurement assembly (6) to rotate to the position directly below the solid column (502). At the same time, under the action of the two bottom support assemblies (3) set on the upper surface of the rotating plate (203), the filling material can be loaded and unloaded and the air pressure measurement assembly (6) can be disassembled and replaced at the same time. Step four, linear movement and pressing: the electric hydraulic cylinder (401) drives the hydraulic telescopic rod (402) to extend and slide, thereby driving the pressure plate (403) to move linearly, which in turn drives the solid column (502) to slide into the third cylinder (6013). This allows the filling material to be pressed. At the same time, the pressure sensor (6022) can measure the pressure data of the filling material in a timely manner and output, display and record it.

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