Roadbed compactness scanning detection device and use method

Abstract

The invention relates to the technical field of roadbed compactness detection, in particular to a roadbed compactness scanning detection device and a use method.The roadbed compactness scanning detection device comprises a base, a soil taking mechanism and a scanning assembly, the soil taking mechanism is installed on the base and used for collecting roadbed soil, and the scanning assembly is installed on the inner side of the base and used for scanning and detecting a soil sample taken out by the soil taking mechanism; the soil sampling mechanism comprises a supporting plate, a drilling assembly and a pushing assembly, the supporting plate is arranged above the base, and the drilling assembly is arranged between the base and the supporting plate and used for sampling soil and then pushing out the soil. The sampling mode of rotating the drill cylinder downwards generally has low disturbance to soil, damage to the soil structure is avoided, the original state of the soil can be reflected more truly, accurate data are provided for roadbed compactness detection, the sampling depth and mode can be adjusted according to the type and compactness of the soil, and the sampling accuracy is improved. The device is suitable for various different soil properties, and wide adaptability of the device is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of subgrade compaction degree detection, and particularly relates to a subgrade compaction degree scanning detection device and a using method thereof. Background Art

[0002] As an important transportation infrastructure, the quality of the subgrade of a railway is directly related to the safety and comfort of railway operation. The hardness of the subgrade is one of the key indicators for measuring the quality of the subgrade. During railway construction, it is necessary to detect the soil hardness of the newly laid subgrade to ensure that it meets the design standards. In addition, although some existing subgrade detection devices have improved the soil sampling efficiency to a certain extent, they have problems such as complex structure, high cost, and poor mobility, and cannot meet the needs of various industries for soil research and detection, and it is difficult to perform real-time scanning detection on the sampled soil samples, affecting subsequent detection results. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a subgrade compaction degree scanning detection device and a using method thereof, which solve the problems of complex structure, high cost, and poor mobility in the prior art when detecting the subgrade compaction degree, thus affecting the detection efficiency.

[0004] To solve the above technical problems, the present invention provides the following technical solutions:

[0005] A subgrade compaction degree scanning detection device includes a base, a soil sampling mechanism, and a scanning assembly. The soil sampling mechanism is installed on the base and is used for collecting subgrade soil. The scanning assembly is installed inside the base and is used for scanning and detecting the soil sample taken out by the soil sampling mechanism. The soil sampling mechanism includes a support plate, a drilling assembly, and a pushing assembly. The support plate is arranged above the base. The drilling assembly is arranged between the base and the support plate and is used for first taking soil and then pushing the soil out. The pushing assembly is arranged on the top of the base and is used to drive the drilling assembly to move up and down. The drilling assembly includes a movable frame, a drill barrel, a piston disc, a driving member, and a transmission member. The movable frame is arranged at the bottom of the support plate. The drill barrel is rotatably installed at the bottom of the movable frame through a bearing, and the transmission member is installed on the top of the movable frame and is used to drive the drill barrel to rotate. The movable piston slides inside the drill barrel, and the driving member is arranged on the movable frame and is used to push the movable piston to slide up and down inside the drill barrel.

[0006] As a further optimized solution of the present invention, the transmission member includes a servo motor fixedly installed on the movable frame. The output shaft of the servo motor penetrates the movable frame and is provided with a synchronous belt through synchronous wheel transmission. One end of the synchronous belt is in transmission connection with the drill barrel through a synchronous wheel.

[0007] As a further optimized solution of the present invention, the driving member includes an electric cylinder 1 fixedly installed on the movable frame. The bottom end of the output shaft of the electric cylinder 1 is fixedly provided with a movable connecting rod fixed to the piston disc.

[0008] A subgrade compaction degree scanning detection device according to claim 1, characterized in that: a steel blade is detachably provided at the bottom end of the drill cylinder.

[0009] As a further optimized solution of the present invention, the pushing component includes a plurality of limiting vertical rails arranged in a circumferential array, a movable seat slidably arranged on each of the plurality of limiting vertical rails, and a slide rail motor fixedly installed on the limiting vertical rails. The slide rail motor drives the movable seat to move up and down on the limiting vertical rails, and each of the plurality of movable seats is fixed to the movable frame.

[0010] As a further optimized solution of the present invention, a first connecting block fixed to the support seat is fixed at the top end of the limiting vertical rail, and a second connecting block fixed to the base is fixed at the bottom end of the limiting vertical rail.

[0011] As a further optimized solution of the present invention, the scanning component includes a connecting plate fixedly embedded in the inner wall of the base. A vision module for photographing and acquiring soil surface image information is fixedly arranged on the connecting plate, and gratings for scanning the soil surface or detecting soil height changes are respectively fixedly installed at both ends of the connecting plate.

[0012] As a further optimized solution of the present invention, a soil shoveling component for shoveling and collecting soil is further arranged on one side inside the base. The soil shoveling component includes an electric cylinder two fixedly embedded in the inner wall of the base. A shovel is fixedly installed on the output shaft of the electric cylinder two, and one end of the shovel is set as an arc surface.

[0013] The using method of the subgrade compaction degree scanning detection device includes the following steps:

[0014] S1: First, place the detection device on the subgrade surface, and then start the servo motor. The output shaft of the servo motor drives the synchronous belt to rotate through the synchronous pulley, and the synchronous belt drives the drill cylinder to rotate through the synchronous pulley at one end thereof;

[0015] S2: At the same time, start three slide rail motors. The three slide rail motors respectively drive the three movable seats to move downward. The three movable seats respectively slide downward on the corresponding three limiting vertical rails. The three movable seats simultaneously drive the movable frame in the middle to move downward, and the movable frame drives the drill cylinder rotating at its bottom to drill downward into the subgrade soil;

[0016] S3: During the process of sampling subgrade soil, the vision module and the grating are used to detect the process of collecting soil in real time, and the compaction condition of the soil can be fed back in real time;

[0017] S4: After the soil is taken, the drill cylinder is pulled out of the subgrade, and then the electric cylinder one is started. The output shaft of the electric cylinder one pushes the piston disk downward through the movable connecting rod, and the piston disk can push out the soil sample in the drill cylinder;

[0018] S5: After the soil sample comes out of the drill cylinder, the second electric cylinder is started simultaneously. The output shaft of the second electric cylinder pushes the shovel to move. The shovel shovels out some samples to be detected from the excavated soil. By driving the shovel to reciprocate and extend by the second electric cylinder, multiple samples to be detected can be taken.

[0019] With the above technical solution, the present invention provides a subgrade compaction degree scanning detection device and a usage method. Compared with the prior art, it has at least the following beneficial effects:

[0020] 1. The present invention collects subgrade soil through the soil sampling mechanism and detects it through the scanning component. By pushing the drill cylinder downward and keeping the drill cylinder rotating, the sample of subgrade soil can be obtained deeply and accurately, avoiding the deviation that may be brought by manual sampling. At the same time, the sampling method of rotating the drill cylinder downward usually has a lower disturbance to the soil, avoiding the destruction of the soil structure, so as to be able to more truly reflect the original state of the soil, provide accurate data for subgrade compaction degree detection, and can adjust the sampling depth and method according to the type and compactness of the soil, being applicable to various different soil types, ensuring the wide adaptability of the device.

[0021] 2. The present invention samples through the downward rotating drill cylinder. After taking out the soil sample, the driving part is used to push the movable plug to move downward in the drill cylinder, and the taken-out soil sample is pushed out of the drill cylinder, so as to quickly and efficiently obtain the soil sample, shortening the detection time. At the same time, compared with other traditional sampling methods, it reduces the need for on-site manual operation and improves the detection efficiency.

[0022] 3. The present invention sets the visual module and grating of the scanning component to detect the process of collecting soil in real time, can give real-time feedback on the compaction situation of the soil, realize high-precision detection of the soil surface and compaction degree, can find subtle compaction unevenness or unqualified areas, and ensure the quality of the subgrade. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the schematic embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the bottom perspective structural schematic diagram of the present invention;

[0026] Figure 3 is the partial structural schematic diagram of the soil sampling mechanism of the present invention;

[0027] Figure 4Schematic structural diagram of the driving component of the present invention;

[0028] Figure 5 Schematic structural diagram of the scanning component of the present invention;

[0029] Figure 6 Schematic structural diagram of the soil-shoveling component of the present invention.

[0030] In the figure: 1. Base;

[0031] 2. Soil-taking mechanism; 21. Support plate;

[0032] 22. Drilling component; 221. Movable frame; 222. Drilling barrel; 223. Piston disc; 224. Steel blade;

[0033] 225. Driving part; 2251. Electric cylinder 1; 2252. Movable connecting rod;

[0034] 226. Transmission part; 2261. Servo motor; 2262. Synchronous belt;

[0035] 23. Driving component; 231. Limit vertical rail; 232. Movable seat; 233. Slide rail motor; 234. Connecting block 1; 235. Connecting block 2;

[0036] 3. Scanning component; 31. Connecting plate; 32. Vision module; 33. Grating;

[0037] 4. Soil-shoveling component; 41. Electric cylinder 2; 42. Shovel. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] First embodiment

[0040] By accurately evaluating the compactness of subgrade soil to ensure that the subgrade construction quality meets the design requirements. Since some traditional subgrade detection devices have problems such as complex structure, high cost, and poor mobility, which affect the efficiency of subgrade compactness detection. In order to quickly and efficiently obtain soil samples and shorten the detection time, as Figure 1 - Figure 3 and Figure 6As shown in the figure, this embodiment provides a subgrade compaction degree scanning detection device, which is composed of a base 1, a soil sampling mechanism 2 and a scanning component 3. The base 1 is set as a frame body with an opening facing down at the bottom. The soil sampling mechanism 2 is installed on the base 1 and is used to collect subgrade soil, and can obtain soil samples of the subgrade deeply and accurately. The scanning component 3 is installed inside the base 1 and is used to scan and detect the soil samples taken out by the soil sampling mechanism 2, and can feedback the compaction situation of the soil in real time, so as to realize high-precision detection of the soil surface and compaction degree.

[0041] The soil sampling mechanism 2 includes a support plate 21, a drilling component 22 and a pushing component 23. The support plate 21 is arranged above the base 1. The drilling component 22 is arranged between the base 1 and the support plate 21, and is used to take soil first and then push out the soil. The support plate 21 is fixedly connected to the base 1 through the limiting vertical rail 231 of the pushing component 23 to ensure the stability of the overall structure. Among them, the drilling component 22 includes a movable frame 221, a drill barrel 222, a piston disk 223, a driving part 225 and a transmission part 226. The movable frame 221 is arranged at the bottom of the support plate 21. The bottom end of the drill barrel 222 is fixedly provided with steel blades 224 through a plurality of bolts, which ensures that the drill barrel 222 can be quickly and stably inserted into the subgrade soil during the downward rotation process, and the steel blades 224 can also be disassembled and replaced when damaged. The drill barrel 222 is rotatably installed at the bottom of the movable frame 221 through a bearing, and the transmission part 226 is installed at the top of the movable frame 221 and is used to drive the drill barrel 222 to rotate. The movable piston is slidably arranged inside the drill barrel 222. The driving part 225 is arranged on the movable frame 221 and is used to push the movable piston to slide up and down in the drill barrel 222, so as to quickly take out the soil sample in the drill barrel 222 and reduce the need for on-site manual operation.

[0042] The transmission part 226 includes a servo motor 2261 fixedly installed on the movable frame 221. The output shaft of the servo motor 2261 penetrates the movable frame 221 and is provided with a synchronous belt 2262 through synchronous pulley transmission. One end of the synchronous belt 2262 is transmissionally arranged with the drill barrel 222 through a synchronous pulley. When the servo motor 2261 is started, the output shaft of the servo motor 2261 drives the drill barrel 222 to rotate through the synchronous belt 2262. The driving part 225 includes an electric cylinder 1 2251 fixedly installed on the movable frame 221. The bottom end of the output shaft of the electric cylinder 1 2251 is fixedly provided with a movable connecting rod 2252 fixed to the piston disk 223. When the electric cylinder 1 2251 is started, the output shaft of the electric cylinder 1 2251 pushes the piston disk 223 downward through the movable connecting rod 2252, and the piston disk 223 can push out the soil sample in the drill barrel 222, so as to quickly and efficiently obtain the soil sample and shorten the detection time.

[0043] The scanning assembly 3 includes a connecting plate 31 fixedly embedded in the inner wall of the base 1. A vision module 32 for photographing and acquiring image information of the soil surface is fixedly arranged on the connecting plate 31. Gratings 33 for scanning the soil surface or detecting changes in soil height are respectively fixedly installed at both ends of the connecting plate 31. During the process of taking soil, the vision module 32 and the gratings 33 are used to detect the process of collecting soil in real time, and the compaction condition of the soil can be fed back in real time, realizing high-precision detection of the soil surface and compaction degree.

[0044] Second Embodiment

[0045] To ensure the stable downward insertion of the drill cylinder 222 into the soil of the roadbed and improve the stability of drilling the soil of the roadbed, as Figure 2 and Figure 4 shown, the pushing assembly 23 of this embodiment is arranged on the top of the base 1 to drive the drilling assembly 22 to move up and down. The specific implementation method is that the pushing assembly 23 includes three limit vertical rails 231 arranged in a circumferential array, movable seats 232 respectively slidably arranged on the three limit vertical rails 231, and slide rail motors 233 fixedly installed on the limit vertical rails 231. The slide rail motors 233 drive the movable seats 232 to move up and down on the limit vertical rails 231, and the three movable seats 232 are all fixed to the movable frame 221. A connecting block one 234 fixed to the support seat is fixed at the top end of the limit vertical rail 231, and a connecting block two 235 fixed to the base 1 is fixed at the bottom end of the limit vertical rail 231. The limit vertical rail 231 is used to connect the base 1 and the support seat and provide a certain supporting effect for the support seat.

[0046] During the process of drilling the soil of the roadbed, start the three slide rail motors 233 at the same time, drive the three movable seats 232 to slide downward on the corresponding three limit vertical rails 231 respectively, thereby driving the movable frame 221 to move downward. The movable frame 221 drives the rotating drill cylinder 222 to drill downward into the soil of the roadbed for soil sampling.

[0047] Third Embodiment

[0048] To make subsequent detection more convenient and improve detection efficiency, as Figure 5 shown, a soil shoveling assembly 4 for shoveling and collecting soil is further arranged on one side inside the base 1 in this embodiment. The specific implementation method is that the soil shoveling assembly 4 includes an electric cylinder two 41 fixedly embedded in the inner wall of the base 1. A shovel 42 is fixedly installed on the output shaft of the electric cylinder two 41. One end of the shovel 42 is set as an arc surface. By starting the electric cylinder two 41, the output shaft of the electric cylinder two 41 pushes the shovel 42 to move, shoveling out part of the samples to be detected from the taken soil. The electric cylinder two 41 reciprocates telescopically, and multiple samples to be detected can be taken, avoiding the cumbersome and error of the traditional manual detection method, and saving a large amount of time and labor costs.

[0049] The structure of the present invention is simple and reasonable. While driving the drill barrel 222 to rotate by the pushing component 23 and the transmission part 226, the drill barrel 222 is pushed downward into the roadbed to collect soil for detection. After the soil is collected, the driving part 225 is used to push out the soil sample in the drill barrel 222, and then the shoveling component 4 shovels out the sample to be detected from the collected soil. At the same time, the scanning component 3 detects the process of collecting soil in real time, which not only reduces the cost of the detection device but also improves the detection efficiency.

[0050] The using method of the roadbed compaction degree scanning detection device is as follows. First, place the device on the surface of the roadbed, then start the servo motor 2261. The output shaft of the servo motor 2261 drives the synchronous belt 2262 to operate through the synchronous pulley. The synchronous belt 2262 drives the drill barrel 222 to rotate through the synchronous pulley at one end. At the same time, start the three slide rail motors 233. The three slide rail motors 233 respectively drive the three movable seats 232 to move downward. The three movable seats 232 slide downward on the corresponding three limiting vertical rails 231 respectively. The three movable seats 232 drive the movable frame 221 in the middle to move downward at the same time. The movable frame 221 drives the drill barrel 222 rotating at its bottom to drill downward into the roadbed soil for soil sampling of the roadbed. At the same time, the visual module 32 and the grating 33 are used to detect the process of collecting soil in real time, and the compaction condition of the soil can be fed back in real time.

[0051] After the soil is collected, the drill barrel 222 is pulled out of the roadbed, and then the first electric cylinder 2251 is started. The output shaft of the first electric cylinder 2251 pushes the piston disk 223 downward through the movable connecting rod 2252. The piston disk 223 can push out the soil sample in the drill barrel 222. After the soil sample comes out of the drill barrel 222, the second electric cylinder 41 is started at the same time. The output shaft of the second electric cylinder 41 drives the shovel 42 to move. The shovel 42 shovels out some samples to be detected from the collected soil. By driving the shovel 42 to reciprocate and stretch by the second electric cylinder 41, multiple samples to be detected can be collected.

[0052] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roadbed compaction scanning detection device, characterized in that: The invention comprises a base (1), a soil collecting mechanism (2) and a scanning assembly (3); the soil collecting mechanism (2) is mounted on the base (1) and is used to collect roadbed soil; the scanning assembly (3) is mounted on the inner side of the base (1) and is used to scan and detect soil samples collected by the soil collecting mechanism (2); The soil taking mechanism (2) comprises a support plate (21), a drilling assembly (22) and a pushing assembly (23); the support plate (21) is arranged above the base (1); the drilling assembly (22) is arranged between the base (1) and the support plate (21) and is used to first take soil and then push the soil out; the pushing assembly (23) is arranged on the top of the base (1) and is used to drive the drilling assembly (22) to move up and down; The drilling assembly (22) comprises a movable frame (221), a drill tube (222), a piston plate (223), a driving member (225) and a transmission member (226); the movable frame (221) is arranged at the bottom of the support plate (21); the drill tube (222) is mounted at the bottom of the movable frame (221) by means of the rotation of a bearing; the transmission member (226) is mounted at the top of the movable frame (221) for driving the drill tube (222) to rotate; the movable plug is slidably arranged on the inner side of the drill tube (222); and the driving member (225) is arranged on the movable frame (221) for pushing the movable plug to slide up and down in the drill tube (222).

2. A roadbed compaction scanning detection device according to claim 1, characterized in that: The transmission member (226) comprises a servo motor (2261) fixedly mounted on the movable frame (221); an output shaft of the servo motor (2261) penetrates the movable frame (221) and is driven by a synchronous belt (2262) through a synchronous wheel; one end of the synchronous belt (2262) is driven by the drill tube (222) through the synchronous wheel.

3. A roadbed compaction scanning detection device according to claim 1, characterized in that: The driving member (225) comprises an electric cylinder 1 (2251) fixedly mounted on the movable frame (221), and a movable connecting rod (2252) fixed to the piston plate (223) is fixedly arranged at the bottom end of the output shaft of the electric cylinder 1 (2251).

4. A roadbed compaction scanning detection device according to claim 1, characterized in that: A steel blade (224) is detachably provided at the bottom end of the drill tube (222).

5. The roadbed compaction scanning detection device according to claim 1, characterized in that: The pushing assembly (23) comprises a plurality of position-limiting vertical rails (231) arranged in a circumferential array, movable seats (232) respectively slidably arranged on the plurality of position-limiting vertical rails (231), and a slide rail motor (233) fixedly mounted on the position-limiting vertical rails (231); the slide rail motor (233) drives the movable seat (232) to move up and down on the position-limiting vertical rails (231), and the plurality of movable seats (232) are all fixed on the movable frame (221).

6. A roadbed compaction scanning and detection device according to claim 5, characterized in that: A first connecting block (234) fixed to the support seat is fixed to the top end of the position-limiting vertical rail (231), and a second connecting block (235) fixed to the base (1) is fixed to the bottom end of the position-limiting vertical rail (231).

7. A roadbed compaction scanning and detection device according to claim 1, characterized in that: The scanning assembly (3) comprises a connecting plate (31) fixedly embedded on the inner wall of the base (1), a visual module (32) for photographing and acquiring soil surface image information being fixedly arranged on the connecting plate (31), and gratings (33) for scanning the soil surface or detecting soil height changes being fixedly mounted at both ends of the connecting plate (31).

8. A roadbed compaction scanning and detection device according to claim 1, characterized in that: A shovel assembly (4) for shoveling and collecting soil is also provided on one side of the interior of the base (1). The shovel assembly (4) comprises an electric cylinder (41) fixedly embedded on the inner wall of the base (1). A shovel (42) is fixedly mounted on the output shaft of the electric cylinder (41). One end of the shovel (42) is arranged as an arc surface.

9. A method for using the roadbed compaction scanning detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, the detection device is placed on the roadbed surface, and then the servo motor is started. The output shaft of the servo motor drives the synchronous belt to rotate through the synchronous wheel, and the synchronous belt drives the drill tube to rotate through the synchronous wheel at one end; S2: start three slide rail motors at the same time, the three slide rail motors drive the three movable seats to move downward respectively, the three movable seats slide downward on the corresponding three limit vertical rails respectively, the three movable seats drive the middle movable frame to move downward at the same time, and the movable frame drives the drill tube rotating at the bottom to drill downward into the roadbed soil; S3: During the roadbed soil sampling process, the visual module and grating are used to detect the soil collection process in real time, and the soil compaction condition can be fed back in real time; S4: After the soil sampling is completed, the drill tube is pulled out from the roadbed, and then the electric cylinder 1 is started. The output shaft of the electric cylinder 1 pushes the piston plate downward through the movable connecting rod, and the piston plate can push out the soil sample in the drill tube; S5: After the soil sample comes out of the drill tube, the electric cylinder 2 is started at the same time. The output shaft of the electric cylinder 2 pushes the shovel to move. The shovel shovels out part of the sample to be tested from the collected soil. The electric cylinder 2 drives the shovel to reciprocate and extend, so that multiple samples to be tested can be taken.

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