Intelligent electromagnetic compaction degree measuring cutting ring and use method

Abstract

The invention discloses an intelligent electromagnetic compaction degree measuring cutting ring and a using method, and particularly relates to the field of road engineering, the intelligent electromagnetic compaction degree measuring cutting ring comprises a fixing frame, the right side of the top of the fixing frame is fixedly connected with a supporting frame, the bottom of the supporting frame is provided with a soil sampling mechanism, and the soil sampling mechanism comprises a soil sampling air cylinder fixedly connected to the bottom of the supporting frame. Downward movement of the cutting ring body is achieved through the movable air cylinder so that soil sampling operation can be completed, then the carrying mechanism drives the weighing device to move rightwards, in the process, weighing of the weighing mechanism on a wet soil sample is completed, and then the carrying mechanism drives the wet soil sample to move rightwards into the drying device to be dried. After drying, the carrying mechanism drives the dry soil sample to the position above the weighing device, the weighing device carries out secondary weighing, obtained data is calculated and processed through a computer, then compaction degree data of the soil sample is obtained, the effects of cutting ring soil taking, weighing and drying mechanization are achieved, and the detection efficiency of the soil sample is improved.

Description

Technical Field

[0001] This invention relates to the field of road engineering technology, specifically to an intelligent electromagnetic compaction degree measuring ring cutter and its usage method. Background Technology

[0002] In road engineering, civil engineering, and geotechnical engineering construction, the compaction degree of filling materials such as subgrade and base course is one of the core indicators for measuring project quality, directly affecting the load-bearing capacity, stability, and service life of structures. Insufficient compaction degree can easily lead to pavement settlement, cracking, water seepage, and other defects. Therefore, accurate and efficient on-site testing of compaction quality is necessary during construction.

[0003] Currently, the classic method for compaction testing is the ring sampler method. Its core principle is to obtain an undisturbed soil sample of known volume using a ring sampler, measure the wet and dry densities of the soil sample, and compare these with the maximum dry density obtained from a standard indoor compaction test to calculate the compaction degree. This method is widely used for compaction testing of fine-grained soils such as cohesive soils and silts due to its intuitive principle and reliable results. However, the traditional ring sampler method has significant technical limitations.

[0004] Traditional ring compaction testing requires manual on-site soil sampling and sealing, followed by weighing, drying for over 12 hours, secondary weighing, and manual calculation in the laboratory. This lengthy process lacks timely feedback of test results and hinders rapid on-site adjustments to compaction operations, severely impacting construction progress and quality control efficiency. Therefore, this paper presents an intelligent electromagnetic compaction testing ring compactor and its application method to address the problems described in the background section. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent electromagnetic compaction test ring and its usage method, which achieves the mechanization of soil sampling, weighing, and drying, thereby improving the efficiency of soil sample testing.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A smart electromagnetic compaction degree measuring ring cutter and its usage method include a fixed frame, a support frame fixedly connected to the top right side of the fixed frame, a soil sampling mechanism at the bottom of the support frame, the soil sampling mechanism including a soil sampling cylinder fixedly connected to the bottom of the support frame, the output end of the soil sampling cylinder being fixedly connected to an mounting frame via a mounting component, and the ring cutter body fixedly connected to the bottom of the mounting frame; a drying device is fixedly installed on the right side of the support frame, and a weighing device is provided on the left side inside the support frame, with a movable weighing tray placed at the weighing end of the weighing device.

[0008] As a further embodiment of the present invention: a sealing plate is slidably connected inside the ring cutter body, a sliding plate that can move up and down is fixedly connected to the top of the sealing plate, the sliding plate extends upward and is slidably connected to the top of the ring cutter body, a blocking plate is fixedly connected to the outside of the sliding plate, a supporting spring is fixedly connected to the bottom of the blocking plate, and the bottom of the supporting spring is fixedly connected to the top of the ring cutter body; a contact roller is fixedly installed on the top of the sliding plate.

[0009] As a further aspect of the present invention, the sealing plate is made of high-temperature resistant PTFE material.

[0010] As a further embodiment of the present invention: the conveying mechanism includes a slide rail fixedly connected to the front and rear sides inside the support frame, a movable plate slidably connected to the inner sides of the two slide rails, the top of the movable plate being fixedly connected to the weighing device, a movable cylinder being fixedly installed on the left side inside the fixed frame, and the output end of the movable cylinder being fixedly connected to the movable plate; the weighing device is electrically connected to a computer, and the control unit built into the computer is electrically connected to the drying device via a Bluetooth device.

[0011] As a further embodiment of the present invention: a movable box is fixedly connected to the left side of the movable plate. The movable box is hollow inside and open at the top. Threaded rods are rotatably connected to both the left and right sides of the movable box. A translation block is threadedly connected to the outer side of the threaded rod. A sliding box is slidably connected to the top of the translation block. A horizontal block is fixedly connected to the top of the sliding box. A U-shaped support plate is fixedly connected to the right side of the horizontal block. A motor is fixedly connected to the left side of the movable box. The output end of the motor is fixedly connected to the threaded rod.

[0012] As a further embodiment of the present invention: a second slide rail is fixedly connected to the inner bottom of the movable box, and the second slide rail is slidably connected to the translation block.

[0013] As a further embodiment of the present invention: guide grooves are respectively provided on the front and rear sides of the movable box. The guide groove is composed of two horizontal grooves and an inclined groove connecting the two horizontal grooves, wherein the left horizontal groove is lower than the right horizontal groove; a guide roller is rotatably connected inside the guide groove, and a rolling rod is rotatably connected to the inner side of the guide roller. The inner side of the rolling rod is rotatably connected to the sliding box.

[0014] As a further embodiment of the present invention: an L-shaped rod is fixedly connected to the top of the horizontal block, the L-shaped rod includes a horizontal plate and a vertical plate, and a triangular plate is fixedly connected to the right side of the horizontal plate. The triangular plate is an isosceles triangle and corresponds to the empty space of the mounting frame.

[0015] As a further embodiment of the present invention: the top of the U-shaped tray is rotatably connected to a rotating rod that runs through the upper and lower sides of the U-shaped tray, and a scraper is fixedly connected to the outer side of the rotating rod. The scraper is made of high-temperature resistant stainless steel. A gear is fixedly connected to the bottom of the rotating rod. Connecting plates are fixedly connected to the top of the front and rear sides of the interior of the movable box, and a set of toothed plates is fixedly connected to the inner side of each of the two connecting plates. The front and rear sets of toothed plates are staggered.

[0016] This invention also provides a method for using a compaction degree measuring ring cutter, comprising the following steps:

[0017] S1. Move the device to the work area, select a flat ground for placement, and fix the corners of the fixing frame to the ground with bolts so that the bottom of the ring cutter body is accurately aligned with the soil extraction area.

[0018] S2. Start the soil sampling cylinder. Its output end drives the mounting frame and the ring cutter body to move vertically downward. Under the driving force of the cylinder, the ring cutter body cuts into the target soil layer until it is completely embedded in the ground. After the soil sampling is completed, control the output end of the soil sampling cylinder to retract, drive the ring cutter body to move vertically upward to the initial position, and the wet soil sample is trapped inside the ring cutter body by the sealing plate, thus completing the soil sampling.

[0019] S3. Next, the weighing device weighs the wet soil sample, deducts the tare weight of the tray, and obtains the weight of the wet soil sample. The data is fed back to the computer and stored in real time.

[0020] S4. Next, the conveying mechanism moves the wet soil sample into the drying device, and then the drying device dries the wet soil sample.

[0021] S5. After drying, the dry soil sample is transported back to the weighing device by the conveying mechanism. The weighing device weighs the dry soil sample and feeds the data back to the computer. The computer processes the obtained weight data of the wet and dry soil samples and the volume of the ring cutter body to obtain the compaction data.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This intelligent electromagnetic compaction test ring cutter and its usage method involve moving the ring cutter body downwards via a moving cylinder to complete the soil sampling operation. Then, a transport mechanism drives the weighing device to the right, during which the wet soil sample is weighed. The wet soil sample is then moved to the right by the transport mechanism into a drying device for drying. After drying, the transport mechanism moves the dry soil sample to the top of the weighing device for a second weighing. The obtained data is calculated and processed by a computer to obtain the compaction data of the soil sample. This achieves the mechanization of ring cutter soil sampling, weighing, and drying, improving the efficiency of soil sample testing.

[0024] 2. Regarding the intelligent electromagnetic compaction measuring ring cutter and its usage: When the guide roller initially rolls along the left side of the guide groove, it drives the horizontal block, L-shaped rod, and triangular plate to move to the right. The right-side inclined surface of the right-moving triangular plate contacts the contact roller. The downward force generated by this contact causes the contact roller, sliding plate, and sealing plate to move downwards synchronously. The support spring is compressed, causing the sealing plate to gradually move downwards. The soil sample is discharged uniformly from the ring cutter body, preventing spillage or breakage due to excessively rapid discharge. This achieves the effect of uniform soil sample discharge.

[0025] 3. During the soil discharge process, the swaying motion of the scraper can evenly push the soil sample piled in the middle of the weighing tray to the surrounding areas, making the soil sample thickness uniform (thickness difference ≤1mm), ensuring uniform heating during subsequent drying, and avoiding moisture content measurement errors caused by local undried areas. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of an intelligent electromagnetic compaction degree measuring ring cutter;

[0027] Figure 2 A schematic cross-sectional view of the overall structure of an intelligent electromagnetic compaction degree measuring ring cutter;

[0028] Figure 3 A schematic cross-sectional view of the soil sampling mechanism in an intelligent electromagnetic compaction measurement ring cutter.

[0029] Figure 4 This is a schematic diagram of the transport mechanism in an intelligent electromagnetic compaction measuring ring cutter.

[0030] Figure 5 This is a schematic diagram of another structure of the transport mechanism in an intelligent electromagnetic compaction measuring ring cutter.

[0031] Figure 6 A schematic cross-sectional view of the transport mechanism in an intelligent electromagnetic compaction degree measuring ring cutter.

[0032] Figure 7 This is a schematic diagram of the process for using an intelligent electromagnetic compaction degree measuring ring cutter.

[0033] In the diagram: 10. Fixed frame; 11. Support frame; 12. ; 20. Soil-taking mechanism; 201. Soil-taking cylinder; 202. Mounting frame; 203. Ring cutter body; 204. Sealing plate; 205. Sliding plate; 206. Support spring; 207. Contact roller; 30. Transport mechanism; 301. Slide rail one; 302. Moving plate; 303. Moving cylinder; 304. Moving box; 305. Threaded rod; 306. Electric Machine; 307, translation block; 308, sliding box; 309, horizontal block; 310, U-shaped tray; 311, guide groove; 312, rolling rod; 313, guide roller; 314, slide rail II; 315, L-shaped rod; 316, triangular plate; 317, rotating rod; 318, scraper; 319, gear; 320, toothed plate; 40, weighing device; 41, weighing tray; 50, drying device; 60, computer. Detailed Implementation

[0034] like Figures 1 to 7 As shown, an intelligent electromagnetic compaction degree measuring ring cutter and its usage method include a fixed frame 10, a support frame 11 fixedly connected to the top right side of the fixed frame 10, a soil sampling mechanism 20 provided at the bottom of the support frame 11, the soil sampling mechanism 20 including a soil sampling cylinder 201 fixedly connected to the bottom of the support frame 11, the output end of the soil sampling cylinder 201 being fixedly connected to an installation frame 202 via an installation component, and a ring cutter body 203 fixedly connected to the bottom of the installation frame 202.

[0035] Specifically, a sealing plate 204 is slidably connected inside the ring cutter body 203. The sealing plate 204 is made of high-temperature resistant PTFE (Teflon) material. A sliding plate 205 that can move up and down is fixedly connected to the top of the sealing plate 204. The sliding plate 205 extends upward and is slidably connected to the top of the ring cutter body 203. A blocking plate is fixedly connected to the outside of the sliding plate 205. A support spring 206 is fixedly connected to the bottom of the blocking plate. The bottom of the support spring 206 is fixedly connected to the top of the ring cutter body 203. A contact roller 207 is fixedly installed on the top of the sliding plate 205.

[0036] In use, the entire frame is first moved to the work area and placed securely. The corners of the frame are then fixed to the ground with bolts, and the bottom of the cutter body 203 is aligned with the soil sampling area. When sampling, the soil sampling cylinder 201 is started by an external power supply. The output end of the soil sampling cylinder 201 drives the cutter body 203 to move downward. Driven by the soil sampling cylinder 201, the cutter body 203 is inserted into the target area and is completely embedded in the ground. After the soil sample from the target area enters the cutter body 203, the output end of the soil sampling cylinder 201 is retracted, driving the cutter body 203 to move back to its original position. The wet soil sample is trapped inside the cutter body 203, thus achieving the effect of mechanized sampling by the cutter body 203.

[0037] refer to Figures 1-6 A drying device 50 is fixedly installed on the right side of the support frame 11. A conveying mechanism 30 is provided inside the support frame 11. The conveying mechanism 30 includes slide rails 301 fixedly connected to the front and rear sides inside the support frame 11. A moving plate 302 is slidably connected to the inner side of the two slide rails 301. A weighing device 40 is fixedly installed on the top of the moving plate 302. A weighing tray 41 is placed on the weighing end of the weighing device 40. A moving cylinder 303 is fixedly installed on the left side inside the fixed frame 10. The output end of the moving cylinder 303 is fixedly connected to the moving plate 302. The weighing device 40 is electrically connected to a computer 60. The control unit built into the computer 60 is electrically connected to the drying device 50 via a Bluetooth device.

[0038] After the ring cutter body 203 has finished sampling, the moving cylinder 303 is started by an external power supply. The output end of the moving cylinder 303 extends, driving the moving plate 302 and the weighing device 40 to move to the right until the weighing device 40 moves directly below the ring cutter body 203. Then, the soil discharge operation begins. The downward-moving sliding plate 205 drives the sealing plate 204 to gradually move downward, so that the soil sample inside the ring cutter body 203 is gradually discharged from the ring cutter body 203. The discharged soil sample falls into the middle position inside the weighing tray 41. After the soil discharge is completed, the weighing device 40 records the weight of the wet soil sample and feeds the weight data back to the computer 60. The built-in storage unit of the computer 60 stores the weight data of the wet soil sample.

[0039] Furthermore, a movable box 304 is fixedly connected to the left side of the movable plate 302. The movable box 304 is hollow inside and open at the top. Threaded rods 305 are rotatably connected to both the left and right sides inside the movable box 304. A translation block 307 is threadedly connected to the outer side of the threaded rod 305. A sliding box 308 is slidably connected to the top of the translation block 307. A horizontal block 309 is fixedly connected to the top of the sliding box 308. A U-shaped support plate 310 is fixedly connected to the right side of the horizontal block 309. A motor 306 is fixedly connected to the left side of the movable box 304. The output end of the motor 306 is fixedly connected to the threaded rod 305.

[0040] Preferably, a slide rail 314 is fixedly connected to the inner bottom of the movable box 304, and the slide rail 314 is slidably connected to the translation block 307, thereby achieving the effect of guiding the translation block 307 when it moves.

[0041] Furthermore, guide grooves 311 are respectively provided on the front and rear sides of the movable box 304. The guide groove 311 is composed of two horizontal grooves and an inclined groove connecting the two horizontal grooves, wherein the left horizontal groove is lower than the right horizontal groove. A guide roller 313 is rotatably connected inside the guide groove 311. A rolling rod 312 is rotatably connected to the inner side of the guide roller 313. The inner side of the rolling rod 312 is rotatably connected to the sliding box 308.

[0042] The weighing tray 41 adopts a "double-layer composite structure": the outer layer is a 304 stainless steel tray (to support soil samples, with rolled edges on the top to prevent spillage), and the inner layer is a high resistivity heat-resistant alloy lining (closely attached to the inner wall of the outer layer, serving as the core for electromagnetic induction heating). The bottom of the tray is equipped with an anti-slip positioning groove, which is precisely matched with the weighing end of the weighing device 40.

[0043] The drying device 50 is a sealed cavity structure with an embedded annular electromagnetic induction heating coil on the inner wall of the cavity. The coil is connected to a high-frequency inverter drive circuit, which can generate a high-frequency alternating magnetic field of 20-100kHz. The drying cavity is equipped with a positioning step that matches the weighing tray 41 to ensure that the inner alloy liner and the heating coil are precisely aligned (spacing ≤2mm) after the tray is placed in, thus ensuring heating efficiency. The cavity is also equipped with a built-in temperature sensor and a weight sensor to monitor the soil sample temperature (controlled at 105-110℃) and weight changes in real time, providing data support for constant weight determination.

[0044] In the initial state, the translation block 307 is attached to the inner left side wall of the moving box 304, and the guide roller 313 is located in the left transverse groove of the guide groove 311. After the wet soil sample is weighed, the motor 306 is started by an external power supply. The output end of the motor 306 drives the threaded rod 305 to rotate, which in turn drives the translation block 307, the sliding box 308, the transverse block 309, and the U-shaped support plate 310 to move to the right. The movement path of the sliding box 308 is constrained by the guide groove 311: when the guide roller 313 rolls along the left transverse groove of the guide groove 311, the sliding box 308 moves horizontally, moving the U-shaped support plate 310 below the weighing tray 41; when the guide roller 313 rolls along the inclined groove of the guide groove 311, the sliding box 308 moves upward on the basis of horizontal movement. Under the superposition of the two movements, the sliding box 308, the transverse block 309, and the U-shaped support plate 310 are tilted and lifted, so that the U-shaped support plate 310 supports the two hanging ears of the weighing tray 41. The soil sample is separated from the weighing device 40. Then, the guide roller 313 rolls along the right-side transverse groove, driving the U-shaped support plate 310 to lift the weighing tray 41 and move it horizontally to the right until the U-shaped support plate sends the weighing tray 41 into the drying device 50. Next, the drying device 50 is started via an external power supply, and the drying device 50 dries the soil sample (drying temperature controlled at 105-110℃ until the soil sample reaches constant weight). After drying, the output end of the motor 306 drives the threaded rod 305 to reverse, thereby driving the U-shaped support plate 310 and the weighing tray 41 to move to the left and return to their original positions. The U-shaped support plate 310 places the weighing tray 41 on the weighing end of the weighing device 40, separates from the weighing tray 41, and returns to its initial position. Simultaneously, the weighing device 40 weighs the dried soil sample and feeds the data back to the computer 60. The computer 60 records the weight of the dry soil sample and performs calculations based on the dry and wet soil sample weights to determine the compaction degree.

[0045] The specific intelligent computing and evaluation engine is as follows:

[0046] Calculate the wet density ρw: ρw = mass of wet soil / volume of the cutter ring (the volume of the cutter ring is the standard value, such as 200cm³);

[0047] Calculate the dry density ρd: ρd = ρw / (1 + moisture content ω) or ρd = dry soil mass / ring cutter volume (verify the two calculation methods to ensure accurate results);

[0048] Calculate the moisture content ω: ω = (Wet soil mass - Dry soil mass) / Dry soil mass × 100%;

[0049] Calculate the compaction degree K: K = (ρd / ρdmax) × 100% (where ρdmax is the maximum dry density of the soil sample under standard indoor compaction).

[0050] Automatic evaluation: The computer 60 automatically judges the measurement result as "qualified" or "unqualified" based on the compaction standard preset by the user or specified in the specification (such as ≥96% is qualified), and highlights it with color (green indicates qualified, red indicates unqualified);

[0051] Data management, report generation and export module: Stores all historical inspection records, supports querying by project name, inspection time, station number and other conditions, can generate standard format inspection reports with one click, and supports exporting in PDF, Excel and other formats.

[0052] Furthermore, an L-shaped rod 315 is fixedly connected to the top of the horizontal block 309. The L-shaped rod 315 includes a horizontal plate and a vertical plate. A triangular plate 316 is fixedly connected to the right side of the horizontal plate. The triangular plate 316 is an isosceles triangle and corresponds to the gap in the mounting frame 202.

[0053] When the guide roller 313 initially rolls along the left transverse groove of the guide groove 311, it will drive the transverse block 309, L-shaped rod 315 and triangular plate 316 to move to the right. The right inclined surface of the right triangular plate 316, which moves to the right, contacts the contact roller 207. The downward force generated by the contact causes the contact roller 207, sliding plate 205 and sealing plate 204 to move downward synchronously. The support spring 206 is compressed, which causes the sealing plate 204 to gradually move downward. The soil sample is discharged from the ring cutter body 203 at a uniform speed, avoiding the soil sample from spilling or breaking due to excessive discharge.

[0054] Furthermore, the top of the U-shaped tray 310 is rotatably connected to a rotating rod 317 that passes through the upper and lower sides of the U-shaped tray 310. A scraper 318 is fixedly connected to the outer side of the rotating rod 317. The scraper 318 is made of high-temperature resistant stainless steel, and the gap between the bottom of the scraper and the inner wall of the weighing tray 41 is 0.3-0.5mm. A gear 319 is fixedly connected to the bottom of the rotating rod 317. Connecting plates are fixedly connected to the top of the front and rear sides of the interior of the movable box 304. A set of toothed plates 320 is fixedly connected to the inner side of each of the two connecting plates, wherein the front and rear sets of toothed plates 320 are staggered.

[0055] When the guide roller 313 rolls along the left transverse groove of the guide groove 311, while the triangular plate 316 moves to discharge soil, it will drive the U-shaped support plate 310 to move to the right, thereby driving the gear 319 to roll along the surface of the toothed plate 320: when the gear 319 rolls along the surface of the front toothed plate 320, it will drive the gear 319 to rotate clockwise; when the gear 319 rolls along the surface of the rear toothed plate 320, it will drive the gear 319 to rotate counterclockwise; due to the staggered arrangement of the front and rear toothed plates 320, the gear 319 will perform a reciprocating swaying motion, which will drive the scraper 318 to sway synchronously and slowly through the rotating rod 317; during the soil discharge process, the swaying motion of the scraper 318 can push the soil sample piled in the middle of the weighing tray 41 to the surrounding area evenly, so that the soil sample thickness is consistent (thickness difference ≤1mm), ensuring uniform heating during subsequent drying and avoiding moisture content measurement errors caused by local undried areas.

[0056] This invention also proposes a method for using a compaction degree measuring ring cutter, comprising the following steps:

[0057] S1. Move the device to the work area, select a flat ground for placement, and fix the corners of the fixing frame 10 to the ground with bolts to prevent the equipment from shaking during operation; adjust the position of the device so that the bottom of the ring cutter body 203 is accurately aligned with the soil extraction area, and clean the surface of the soil extraction area of ​​loose soil, gravel and other debris.

[0058] S2. Start the soil sampling cylinder 201. Its output end drives the mounting frame 202 and the ring cutter body 203 to move vertically downward. Under the driving force of the cylinder, the ring cutter body 203 cuts into the target soil layer until it is completely embedded in the ground. After the soil sampling is completed, control the output end of the soil sampling cylinder 201 to retract, and drive the ring cutter body 203 to move vertically upward to the initial position. The wet soil sample is intercepted by the sealing plate 204 inside the ring cutter body 203, and the soil sampling is completed.

[0059] S3. Next, the weighing device 40 weighs the wet soil sample, deducts the tare weight of the tray, and obtains the weight of the wet soil sample. The data is fed back to the computer 60 in real time and stored.

[0060] S4. Next, the conveying mechanism 30 moves the wet soil sample into the drying device 50, and then the drying device 50 dries the wet soil sample.

[0061] S5. After drying, the dry soil sample is moved to the weighing device 40 by the conveying mechanism 30. The weighing device weighs the dry soil sample and feeds the data back to the computer 60. The computer 60 processes the obtained weight data of the wet soil sample and the dry soil sample, as well as the volume of the ring cutter body 203, to obtain the compaction data.

[0062] 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 claimed invention.

Claims

1. A smart electromagnetic compaction degree measuring ring cutter, characterized in that, The system includes a fixed frame (10), a support frame (11) is fixedly connected to the top right side of the fixed frame (10), a soil sampling mechanism (20) is provided at the bottom of the support frame (11), the soil sampling mechanism (20) includes a soil sampling cylinder (201) fixedly connected to the bottom of the support frame (11), the output end of the soil sampling cylinder (201) is fixedly connected to an installation frame (202) through an installation component, and a ring cutter body (203) is fixedly connected to the bottom of the installation frame (202); a drying device (50) is fixedly installed on the right side of the support frame (11), and a weighing device (40) is provided on the left side inside the support frame (11), and a movable weighing tray (41) is placed at the weighing end of the weighing device (40).

2. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 1, characterized in that, A sealing plate (204) is slidably connected inside the ring cutter body (203). A sliding plate (205) that can move up and down is fixedly connected to the top of the sealing plate (204). The sliding plate (205) extends upward and is slidably connected to the top of the ring cutter body (203). A blocking plate is fixedly connected to the outside of the sliding plate (205). A support spring (206) is fixedly connected to the bottom of the blocking plate. The bottom of the support spring (206) is fixedly connected to the top of the ring cutter body (203). A contact roller (207) is fixedly installed on the top of the sliding plate (205).

3. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 2, characterized in that, The sealing plate (204) is made of high-temperature resistant PTFE material.

4. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 3, characterized in that, The conveying mechanism (30) includes a slide rail (301) fixedly connected to the front and rear sides inside the support frame (11). The inner sides of the two slide rails (301) are slidably connected to a moving plate (302). The top of the moving plate (302) is fixedly connected to the weighing device (40). A moving cylinder (303) is fixedly installed on the left side inside the fixed frame (10). The output end of the moving cylinder (303) is fixedly connected to the moving plate (302). The weighing device (40) is electrically connected to a computer (60). The control unit built into the computer (60) is electrically connected to the drying device (50) via a Bluetooth device.

5. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 4, characterized in that, A movable box (304) is fixedly connected to the left side of the movable plate (302). The movable box (304) is hollow inside and open at the top. Threaded rods (305) are rotatably connected to the left and right sides of the movable box (304). A translation block (307) is threadedly connected to the outer side of the threaded rod (305). A sliding box (308) is slidably connected to the top of the translation block (307). A horizontal block (309) is fixedly connected to the top of the sliding box (308). A U-shaped support plate (310) is fixedly connected to the right side of the horizontal block (309). A motor (306) is fixedly connected to the left side of the movable box (304). The output end of the motor (306) is fixedly connected to the threaded rod (305).

6. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 5, characterized in that, The inner bottom of the movable box (304) is fixedly connected to a slide rail two (314), and the slide rail two (314) is slidably connected to the translation block (307).

7. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 6, characterized in that, The movable box (304) has guide grooves (311) on its front and rear sides respectively. The guide groove (311) is composed of two horizontal grooves and an inclined groove connecting the two horizontal grooves, wherein the left horizontal groove is lower than the right horizontal groove. The guide groove (311) is connected to a guide roller (313) inside. The guide roller (313) is rotatably connected to a rolling rod (312) on its inner side. The inner side of the rolling rod (312) is rotatably connected to the sliding box (308).

8. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 7, characterized in that, The top of the horizontal block (309) is fixedly connected to an L-shaped rod (315), which includes a horizontal plate and a vertical plate. A triangular plate (316) is fixedly connected to the right side of the horizontal plate. The triangular plate (316) is an isosceles triangle and corresponds to the gap in the mounting frame (202).

9. The intelligent electromagnetic compaction degree measuring ring cutter according to claim 8, characterized in that, The top of the U-shaped support plate (310) is rotatably connected to a rotating rod (317) that runs through the upper and lower sides of the U-shaped support plate (310). A scraper (318) is fixedly connected to the outside of the rotating rod (317). The scraper (318) is made of high-temperature resistant stainless steel. A gear (319) is fixedly connected to the bottom of the rotating rod (317). Connecting plates are fixedly connected to the top of the front and rear sides of the interior of the movable box (304). A set of toothed plates (320) is fixedly connected to the inner side of the two connecting plates. The front and rear sets of toothed plates (320) are staggered.

10. A method for using a compaction degree measuring ring cutter, characterized in that, Includes the following steps: S1. Move the device to the work area, select a flat ground to place it, and fix the corners of the fixing frame (10) to the ground with bolts so that the bottom of the ring cutter body (203) is accurately aligned with the soil extraction area. S2. Start the soil sampling cylinder (201). Its output end drives the mounting frame (202) and the ring cutter body (203) to move vertically downward. The ring cutter body (203) cuts into the target soil layer under the driving force of the cylinder until it is completely embedded in the ground. After the soil sampling is completed, control the output end of the soil sampling cylinder (201) to retract, and drive the ring cutter body (203) to move vertically upward to the initial position. The wet soil sample is intercepted inside the ring cutter body (203) by the sealing plate (204), and the soil sampling is completed. S3. Next, the weighing device (40) weighs the wet soil sample, deducts the tare weight of the tray, and obtains the weight of the wet soil sample. The data is fed back to the computer (60) in real time and stored. S4. Then the conveying mechanism (30) moves the wet soil sample into the drying device (50), and the drying device (50) dries the wet soil sample. S5. After drying, the dry soil sample is moved to the weighing device (40) by the conveying mechanism (30). The weighing device weighs the dry soil sample and feeds the data back to the computer (60). The computer (60) processes the obtained weight data of the wet soil sample and the dry soil sample and the volume of the ring cutter body (203) to obtain the compaction data.

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