A roadbed compaction detection device and its use method

Abstract

The present invention relates to the technical field of highway roadbed detection, and in particular to a highway roadbed compaction detection device and a method for using the same; the device comprises a base, wherein the base comprises an L-shaped base frame and an aggregate bottom box, wherein the L-shaped base frame is a metal frame, and the aggregate bottom box is arranged on the inner side of a horizontal frame at the bottom end of the L-shaped base frame. The device controls the downward movement of a drilling column through a lifting component, passes through through-channels of upper and lower bottom walls of the aggregate bottom box and drills into the top surface of the roadbed to complete the drilling of a test hole, and after completion, controls the upward movement of the drilling column. When passing through the aggregate bottom box and moving upward, a synchronous driving frame and a rotating shaft are driven to rotate by a driving motor, thereby driving two sweeping soft brushes to sweep in opposite directions on both sides of the drilling column, sweeping residual soil sticking to the drilling column and dropping it into the aggregate bottom box, and reducing the deviation of soil weight when the soil is subsequently collected and weighed.

Description

Technical Field

[0001] The present invention relates to the technical field of highway subgrade detection, and in particular to a highway subgrade compaction detection device and a use method thereof. Background Art

[0002] The compaction of a highway subgrade is one of the key indicators for detecting construction quality during highway construction. The commonly used method is the sand filling method, which is to use soil-taking tools such as a barrel cutter to make a test hole, take out the base soil in the test hole, and then fill the test hole with measuring sand. Finally, the compaction of the roadbed is calculated based on the volume of the test sand and the weight of the taken out base soil.

[0003] This sand filling method requires drilling a test hole and taking out the base soil in the test hole. Generally, the base soil of the roadbed is very compact. Traditional drum cutters need to use external force to squeeze into the roadbed. At the same time, the base soil is easy to fall when taking it out. At the same time, the base soil at the bottom of the test hole is easy to remain. It is not suitable for precise soil extraction per unit volume and lacks accuracy.

[0004] In addition, soil can also be taken through a drilling rig. Since the working method of the drilling rig is to drill holes to take soil, a compact roadbed can also quickly drill a cylindrical hole. At the same time, the drilled soil can be quickly collected and weighed with high accuracy.

[0005] This drilling method of soil extraction is to drill into the roadbed through a rotating drill string. Most of the time, a collection box will be set at the position of the drill string drilling hole to help the base soil rotated out by the drill string enter the collection box. This method can quickly collect the base soil, but because the drill string rotates the base soil, the base soil is often in a loose state when it is taken out. At the same time, it is affected by the rotary blades of the drill string, and a part of the base soil will remain on the rotary blades, affecting the final weight of the base soil, thereby affecting the conversion of the test sand volume and the base soil weight. At the same time, a part of the loose soil will remain in the test hole. Since test sand needs to be poured into the test hole to obtain the volume, and loose soil occupies a larger volume than compact soil, when the test sand fills the test hole, the actual volume obtained will be smaller, which will also affect the conversion of the test sand volume and the base soil weight, and finally lead to a deviation in the obtained roadbed compaction degree. Summary of the invention

[0006] The purpose of the present invention is to provide a highway roadbed compaction detection device and a method of using the same, so as to solve the problem that during the process of drilling and taking soil by a drilling rig, a part of the base soil will remain in the drill hole and on the rotary vane. The loose base soil remaining in the drill hole will cause the volume of the test sand to be reduced, and the base soil remaining on the rotary vane will affect the final weight of the base soil, which will eventually affect the conversion of the test sand volume and the base soil weight, resulting in the problem of roadbed compaction deviation.

[0007] In order to achieve the above-mentioned object, the present invention provides a highway roadbed compaction detection device and a method for using the same, including a base, the base including an L-shaped base frame and an aggregate bottom box, the L-shaped base frame is a metal frame, and the aggregate bottom box is arranged inside a horizontal frame at the bottom end of the L-shaped base frame;

[0008] A drilling rig soil taking mechanism, the drilling rig soil taking mechanism comprising a lifting assembly and a drilling assembly, the lifting assembly being arranged on a vertical frame of an L-shaped base frame, the drilling assembly being arranged at a lifting end of the lifting assembly, the drilling assembly comprising a drilling swivel, vertical through passages being provided on the upper and lower bottom walls of the aggregate bottom box, and the drilling swivel facing the through passage of the aggregate bottom box;

[0009] A sticky soil sweeping mechanism, which is arranged on the aggregate bottom box and acts on the drilling rotary column. The sticky soil sweeping mechanism includes a synchronous driving member and a bidirectional sweeping assembly. The synchronous driving member is arranged on the top of the aggregate bottom box. The bidirectional sweeping assembly is rotatably mounted on the inner side of the aggregate bottom box and is located at the edges of both sides of the through channel.

[0010] A test hole compaction mechanism, the test hole compaction mechanism includes a mobile control component and a hole bottom compaction component, the mobile control component is arranged on one side of the aggregate bottom box close to the vertical frame of the L-shaped base frame, the hole bottom compaction component is arranged on the mobile end of the mobile control component, and the end point of the moving path of the hole bottom compaction component is located directly above the channel through the bottom wall of the aggregate bottom box.

[0011] As a further improvement of the present technical solution, the bidirectional sweeping assembly includes a rotating shaft and a sweeping soft brush. The rotating shafts are grouped together in two and are rotatably installed on the top surface of the aggregate bottom box in the vertical direction. The two rotating shafts are distributed on both sides of the through-channel on the top wall of the aggregate bottom box. The sweeping soft brush is arranged on an axis body of the rotating shaft located on the inner side of the aggregate bottom box, and the rotation range of the two sweeping soft brushes overlaps in the through-channel of the aggregate bottom box.

[0012] As a further improvement of the present technical solution, the synchronous drive component includes a drive motor and a synchronous drive frame, the drive motor is arranged on the top wall of the aggregate bottom box, the synchronous drive frame is arranged on the top wall of the aggregate bottom box, and one end of the synchronous drive frame is connected to the output end of the drive motor, and the other end is connected to the rotating shaft located on the outer side of the aggregate bottom box.

[0013] As a further improvement of the present technical solution, the synchronous drive frame includes a bearing seat, a driving shaft, a linkage shaft and a linkage gear group. The bearing seats are arranged in three groups on the top wall of the aggregate bottom box. The driving shaft is arranged on one of the groups of bearing seats, and the driving shaft is connected to the output end of the driving motor. The linkage shafts are arranged in parallel on the other two groups of bearing seats in a group of two, and one end of the two linkage shafts is close to the driving shaft body, and the other end is close to the two rotating shaft ends respectively. The linkage gear group is arranged between the linkage shaft and the driving shaft body, and the linkage gear group is also arranged between the linkage shaft and the rotating shaft end.

[0014] As a further improvement of the present technical solution, the mobile control assembly includes a control push rod, a guide rail and a sliding table. The control push rod is horizontally arranged outside the side wall of the aggregate bottom box, the guide rail is arranged below the top wall of the aggregate bottom box, the sliding table is slidably installed on the inner side of the guide rail, the hole bottom compaction assembly is arranged below the sliding table, and the push rod part of the control push rod movably passes through the side wall of the aggregate bottom box and is connected to the sliding table.

[0015] As a further improvement of the present technical solution, long guide grooves are provided on both side walls of the guide rail, and a pad is provided on the side of the long guide groove away from the control push rod, and a horizontal positioning rod is provided on the sliding platform, and the positioning rod passes through the long guide grooves on both side walls of the guide rail in the horizontal direction.

[0016] As a further improvement of the present technical solution, the hole bottom compaction assembly includes a locking member, a driving push rod and a compaction circular plate, the locking member is arranged at the bottom end of the sliding table, the driving push rod is vertically arranged below the locking member, and the output end of the driving push rod is vertically facing downward, and the compaction circular plate is arranged on the output end of the driving push rod.

[0017] As a further improvement of the present technical solution, a positioning ring block is provided at the edge of the through channel of the bottom wall of the aggregate bottom box, the positioning ring block is located on the side of the through channel away from the control push rod, and the positioning ring block is located on the moving path of the compacting circular plate, and a shielding ring plate for shielding soil is provided on the side of the through channel of the bottom wall of the aggregate bottom box away from the positioning ring block, and the top surface of the shielding ring plate and the bottom surface of the compacting circular plate are in the same plane.

[0018] The second object of the present invention is to provide a method for using a highway subgrade compaction detection device, comprising any one of the above-mentioned highway subgrade compaction detection devices, including the following method steps:

[0019] S1. First, move the entire base to stay on the roadbed, so that the aggregate bottom box is in contact with the surface of the roadbed. At this time, start the drilling rig assembly to drive the drilling swivel to rotate, and then control the drilling rig assembly to move up and down on the vertical frame of the L-shaped base frame through the lifting assembly. The drilling swivel will pass through the through-channels of the upper and lower bottom walls of the aggregate bottom box and finally rotate into the ground. When the drilling swivel is drilling a hole, the soil brought out by the rotary blades of the drilling swivel will enter the inside of the aggregate bottom box. After the test hole is drilled, the soil remains in the aggregate bottom box. At this time, the drilling rig assembly is controlled to move up through the lifting assembly, so that the drilling swivel first passes through the through-channel of the bottom wall of the aggregate bottom box and moves up, and the drilling swivel stays in the aggregate bottom box;

[0020] S2, start the driving motor, and drive the driving shaft to rotate through the driving motor, thereby driving the two linked shafts to rotate synchronously through the linked gear set, and the two linked shafts can drive the two rotating shafts to rotate synchronously on the top wall of the aggregate bottom box. At this time, the sweeping soft brushes on the two rotating shafts rotate synchronously, and the two sweeping soft brushes rotate on both sides of the through-channel on the top wall of the aggregate bottom box. The drilling rig assembly is controlled to move upward through the lifting assembly, so that the drilling rig column passes through the through-channel on the bottom wall and the top wall of the aggregate bottom box and moves upward. The drilling rig contaminated with soil continues to move upward, and when passing through the through-channel on the top wall of the aggregate bottom box, sweeping and brushing are completed between the two rotating sweeping soft brushes, and the soil contaminated by the drilling rig column is swept down and falls into the aggregate bottom box. The drilling rig that has completed sweeping and brushing will eventually move to the top of the aggregate bottom box and stop;

[0021] S3, start the control push rod to push the sliding table and the hole bottom compaction assembly to move along the guide track. After moving, the compaction circular plate finally stays above the through-channel and the test hole of the bottom wall of the aggregate bottom box under the action of the pads of the guide long groove on the side wall of the guide track and the positioning ring block;

[0022] S4, start the driving push rod to push the compaction circular plate through the bottom wall of the aggregate bottom box and into the test hole. The compaction circular plate moves downward in the test hole to compact the loose soil remaining in the test hole and reduce the space occupied by the residual soil. After the compaction is completed, the compaction circular plate is reset, and then the control push rod is used to control the sliding table and the hole bottom compaction assembly to reset along the guide track;

[0023] S5. Move the entire foundation to expose the drilled test hole, pour test sand into the test hole, calculate the volume of the test sand, open the aggregate bottom box, collect the soil in the aggregate bottom box and weigh it. The compaction degree of the roadbed can be calculated by converting the volume of the test sand and the weight of the soil.

[0024] Compared with the prior art, the present invention provides a highway roadbed compaction detection device and a method for using the same, which have the following beneficial effects:

[0025] The present invention controls the downward movement of the drilling rotary column through the lifting component, passes through the through channels of the upper and lower bottom walls of the aggregate bottom box and drills into the top surface of the roadbed to complete the drilling of the test hole. After completion, the drilling rotary column is controlled to move upward. When moving upward through the aggregate bottom box, the synchronous driving frame and the rotating shaft are driven to rotate by the driving motor, thereby driving two sweeping soft brushes to form a sweeping movement in opposite directions on both sides of the drilling rotary column, sweeping off the residual soil sticking to the drilling rotary column and dropping it into the aggregate bottom box, reducing the deviation of the soil weight when the soil is collected and weighed later.

[0026] In addition, the push rod can be controlled to push the sliding table and the hole bottom compaction assembly to slide on the guide track, so that the compaction circular plate is facing the aggregate bottom box through the channel and the test hole, and then the driving push rod is used to push the compaction circular plate down into the test hole to compact the loose soil remaining in the test hole, reducing the space occupied by the residual soil, making it easier to obtain a more accurate volume of test sand when the test sand is poured in later. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0029] Figure 3 This is a schematic diagram of the overall structure of the drilling rig soil taking mechanism after being separated from the present invention;

[0030] Figure 4 It is a schematic diagram of the structural distribution of the aggregate bottom box, the sticky soil sweeping mechanism and the test hole compaction mechanism of the present invention;

[0031] Figure 5 A schematic diagram of the structural distribution of the aggregate bottom box, the sticky soil sweeping mechanism and the test hole compaction mechanism from another perspective of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure after the aggregate bottom box, the sticky soil sweeping mechanism and the test hole compacting mechanism are separated in the present invention;

[0033] Figure 7 It is a side sectional view of the overall structure of the present invention;

[0034] Figure 8 It is a front cross-sectional view of the overall structure of the present invention.

[0035] In the figure: 1. L-shaped basic frame; 2. aggregate bottom box; 3. lifting assembly; 4. drilling rig assembly; 41. drilling swivel column; 5. synchronous drive member; 51. drive motor; 52. synchronous drive frame; 521. bearing seat; 522. drive shaft; 523. linkage shaft; 524. linkage gear set; 6. two-way sweeping assembly; 61. rotating shaft; 62. sweeping soft brush; 7. moving control assembly; 71. control push rod; 72. guide rail; 73. sliding table; 8. bottom compacting assembly; 81. locking member; 82. drive push rod; 83. compacting circular plate; 9. positioning ring block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Reference Figure 1-8 , a highway roadbed compaction detection device, in order to collect the loose soil contaminated on the drill hole structure, reduce the deviation of soil weight, and compact the loose soil remaining in the test hole at the same time, reduce the volume deviation when the test sand is poured into the test hole, and ensure the accuracy of the subsequent soil weight and test sand volume conversion of the roadbed compaction. Here, it is set up including a base, a drilling rig soil taking mechanism, a sticky soil sweeping mechanism and a test hole compaction mechanism. The base includes an L-shaped base frame 1 and an aggregate bottom box 2. The L-shaped base frame 1 is a metal frame. Side wheels for tilting and moving are arranged on one side of the L-shaped base frame 1, and handrails are arranged at the end of the L-shaped base frame 1 for controlling the inclination of the L-shaped base frame 1 and moving through the side wheels. The aggregate bottom box 2 is arranged on the inside of the horizontal frame at the bottom end of the L-shaped base frame 1;

[0038] The drilling rig soil taking mechanism includes a lifting assembly 3 and a drilling assembly 4. The lifting assembly 3 is arranged on the vertical frame of the L-shaped base frame 1. The lifting assembly 3 is a lifting structure driven by a cylinder, which will not be described in detail here. The drilling rig assembly 4 is arranged at the lifting end of the lifting assembly 3. The drilling rig assembly 4 includes a drilling screw 41. The drilling rig assembly 4 is a device that drives the drilling screw 41 to rotate by a motor. Vertical through-channels are opened on the upper and lower bottom walls of the aggregate bottom box 2, and the drilling screw 41 is directly opposite to the through-channel of the aggregate bottom box 2;

[0039] The sticky soil sweeping mechanism is arranged on the aggregate bottom box 2 and acts on the drilling screw 41. The sticky soil sweeping mechanism includes a synchronous driving member 5 and a bidirectional sweeping assembly 6. The synchronous driving member 5 is arranged on the top of the aggregate bottom box 2. The bidirectional sweeping assembly 6 is rotatably installed on the inner side of the aggregate bottom box 2 and is located at the edges of both sides of the through channel.

[0040] The test hole compaction mechanism includes a mobile control component 7 and a hole bottom compaction component 8. The mobile control component 7 is arranged on one side of the aggregate bottom box 2 close to the vertical frame of the L-shaped base frame 1. The hole bottom compaction component 8 is arranged on the moving end of the mobile control component 7, and the end point of the moving path of the hole bottom compaction component 8 is located directly above the channel through the bottom wall of the aggregate bottom box 2.

[0041] The two-way sweeping assembly 6 includes a rotating shaft 61 and a sweeping soft brush 62. The two rotating shafts 61 form a group and are rotatably mounted on the top surface of the aggregate bottom box 2 in the vertical direction. The two rotating shafts 61 are distributed on both sides of the through-channel on the top wall of the aggregate bottom box 2. The sweeping soft brush 62 is arranged on the shaft body of the rotating shaft 61 located on the inner side of the aggregate bottom box 2, and the rotation range of the two sweeping soft brushes 62 overlaps in the through-channel of the aggregate bottom box 2. Figure 5 As shown, the sweeping soft brushes 62 on the two rotating shafts 61 overlap in the through-channel, so that when the drilling column 41 moves upward in the through-channel after the drilling is completed, the sweeping soft brushes 62 can perform bidirectional sweeping on both sides of the drilling column 41, thereby sweeping the soil contaminated on the drilling column 41 back into the aggregate bottom box 2, preventing the drilling column 41 from taking away part of the soil, resulting in a smaller weight of the finally collected soil.

[0042] The synchronous drive component 5 includes a drive motor 51 and a synchronous drive frame 52. The drive motor 51 is arranged on the top wall of the aggregate bottom box 2. The synchronous drive frame 52 is arranged on the top wall of the aggregate bottom box 2. One end of the synchronous drive frame 52 is connected to the output end of the drive motor 51, and the other end is connected to the rotating shaft 61 located on the outer shaft body of the aggregate bottom box 2.

[0043] The synchronous drive frame 52 includes a bearing seat 521, a driving shaft 522, a linkage shaft 523 and a linkage gear set 524. The bearing seat 521 is provided with three groups on the top wall of the aggregate bottom box 2. The driving shaft 522 is provided on one group of bearing seats 521, and the driving shaft 522 is connected to the output end of the driving motor 51. The linkage shafts 523 are arranged in parallel on the other two groups of bearing seats 521 in a group, and one end of the two linkage shafts 523 is close to the shaft body of the driving shaft 522, and the other end is close to the shaft body of the driving shaft 522. At the ends of the two rotating shafts 61, the linkage gear set 524 is arranged between the linkage rotating shaft 523 and the drive rotating shaft 522, and the linkage gear set 524 is also arranged between the linkage rotating shaft 523 and the end of the rotating shaft 61, so that the driving motor 51 can drive the drive rotating shaft 522 to rotate, thereby driving the two linkage rotating shafts 523 to rotate synchronously through the linkage gear set 524, and the two linkage rotating shafts 523 can drive the two rotating shafts 61 to rotate, so that the two rotating shafts 61 maintain a synchronous rotation state.

[0044] The mobile control component 7 includes a control push rod 71, a guide rail 72 and a sliding platform 73. The control push rod 71 is horizontally arranged outside the side wall of the aggregate bottom box 2, the guide rail 72 is arranged below the top wall of the aggregate bottom box 2, the sliding platform 73 is slidably installed on the inner side of the guide rail 72, and the bottom compaction component 8 is arranged below the sliding platform 73. The push rod part of the control push rod 71 movably passes through the side wall of the aggregate bottom box 2 and is connected to the sliding platform 73, so that the sliding platform 73 can be controlled by the control push rod 71 to slide on the guide rail 72, thereby driving the bottom compaction component 8 to move horizontally inside the aggregate bottom box 2.

[0045] A guide long groove is provided on both side walls of the guide rail 72, and a cushion block is provided on the side of the guide long groove away from the control push rod 71. A horizontal positioning rod is provided on the sliding platform 73, and the positioning rod horizontally penetrates the guide long groove on both side walls of the guide rail 72, so that when the control push rod 71 pushes the sliding platform 73 to slide in the guide rail 72, the positioning rod slides in the guide long groove, and when sliding to the maximum distance, the positioning rod squeezes the cushion block, such as Figure 6 As shown, at this time, the compacting end of the hole bottom compacting assembly 8 below the sliding platform 73 is facing the top of the through channel of the bottom wall of the aggregate bottom box 2.

[0046] The hole bottom compaction assembly 8 includes a locking member 81, a driving push rod 82 and a compaction circular plate 83. The locking member 81 is arranged at the bottom end of the sliding platform 73, the driving push rod 82 is arranged vertically below the locking member 81, and the output end of the driving push rod 82 is vertically downward, and the compaction circular plate 83 is arranged on the output end of the driving push rod 82. Figure 6 As shown, when the entire hole bottom compaction assembly 8 moves under the control of the movement control assembly 7, the compaction circular plate 83 will move and finally stop above the through-channel. As the drilling pedestal 41 passes through the through-channel and moves downward, a test hole is drilled on the roadbed below the through-channel. At this time, the compaction circular plate 83 will be located above the test hole. Starting the driving push rod 82 pushes the compaction circular plate 83 into the test hole and moves downward in the test hole, thereby compacting the loose soil remaining in the test hole and reducing the space occupied by the residual soil.

[0047] It should be clarified that the two sweeping soft brushes 62 rotate synchronously with the two rotating shafts 61 in the same direction of rotation, but because the through-channel is located between the two sweeping soft brushes 62, the two sweeping soft brushes 62 sweep in opposite directions relative to the through-channel. When the drilling rotary column 41 moves upward in the through-channel, it will be swept in opposite directions by the two sweeping soft brushes 62, so that the soil sticking on the drilling rotary column 41 can be swept more comprehensively. At the same time, since the sweeping direction is horizontal and the drilling rotary column 41 is located directly above the through-channel and the test hole on the bottom wall of the aggregate bottom box 2, there will be a certain shielding effect, and the swept soil will be scattered horizontally in the aggregate bottom box 2, and some of the swept soil may fall into the test hole, but these soils will be compacted by the compaction circular plate 83 together with the soil remaining in the test hole in the subsequent process, and will not affect the final result.

[0048] A positioning ring block 9 is provided at the edge of the through channel of the bottom wall of the aggregate bottom box 2. The positioning ring block 9 is located on the side of the through channel away from the control push rod 71, and the positioning ring block 9 is located on the moving path of the compacting circular plate 83. A shielding ring plate for shielding soil is provided on the side of the through channel of the bottom wall of the aggregate bottom box 2 away from the positioning ring block 9, and the top surface of the shielding ring plate and the bottom surface of the compacting circular plate 83 are in the same plane. The shielding ring plate can shield the soil rotated out by the drilling screw 41, allowing the soil to accumulate toward the side away from the compacting component 8 at the bottom of the hole, preventing the accumulated soil from affecting the forward movement of the compacting circular plate 83, and preventing the compacting circular plate 83 from pushing the accumulated soil into the test hole when moving forward. In addition, the soil accumulated on the other side of the aggregate bottom box 2 can be taken out more conveniently. Figure 6 and Figure 8 As shown, the positioning ring block 9 is higher than the shielding ring plate. When the control push rod 71 pushes the sliding platform 73 to slide along the guide track 72, driving the hole bottom compaction assembly 8 to approach the through-channel on the bottom wall of the aggregate bottom box 2, the compaction circular plate 83 will slide along the shielding ring plate to the positioning ring block 9. The positioning ring block 9 will play a role of intercepting and positioning, allowing the compaction circular plate 83 to stop above the through-channel, making it convenient for the subsequent compaction circular plate 83 to pass through the through-channel and move downward.

[0049] Working principle: first move the L-shaped base frame 1 so that the aggregate bottom box 2 stops in contact with the surface of the roadbed, then start the drilling rig assembly 4, drive the drilling screw 41 to rotate through the motor, and then control the drilling rig assembly 4 to move down along the vertical frame of the L-shaped base frame 1 through the lifting assembly 3, the drilling screw 41 will pass through the through-channels of the upper and lower bottom walls of the aggregate bottom box 2 and finally rotate into the ground. When the drilling screw 41 is drilling a hole, the soil brought out by the rotary blades of the drilling screw 41 will enter the aggregate bottom box 2. After drilling the test hole, the soil remains in the aggregate bottom box 2. At this time, start the drive motor 51, and drive the drive shaft through the drive motor 51 522 rotates, and the two linkage rotating shafts 523 are driven to rotate synchronously through the linkage gear set 524. The two linkage rotating shafts 523 can drive the two rotating shafts 61 to rotate synchronously on the top wall of the aggregate bottom box 2. At this time, the sweeping soft brushes 62 on the two rotating shafts 61 rotate on both sides of the through-channel on the top wall of the aggregate bottom box 2 respectively, and the drilling rig assembly 4 is controlled to move upward through the lifting assembly 3, so that the drilling rig column 41 contaminated with soil is swept between the two rotating sweeping soft brushes 62 during the upward movement, and the soil contaminated by the drilling rig column 41 is swept down and falls into the aggregate bottom box 2. The drilling rig column 41 that has completed the sweeping and brushing will be the most Finally, it moves to the top of the aggregate bottom box 2 and stops. At this time, the control push rod 71 is started to push the sliding table 73 and the hole bottom compaction assembly 8 to move along the guide track 72. When the positioning rod part of the sliding table 73 slides in the guide long groove of the guide track 72 and slides to the maximum distance, the positioning rod squeezes the pad. At the same time, when the compaction circular plate 83 moves and slides to the maximum distance, it will squeeze the positioning ring block 9. At this time, the compaction circular plate 83 stays just above the bottom wall of the aggregate bottom box 2 through the channel and the test hole. The driving push rod 82 is started to push the compaction circular plate 83 downward, and the compaction circular plate 83 will pass through the bottom wall of the aggregate bottom box 2 After penetrating the passage and entering the test hole, the compaction circular plate 83 continues to move downward in the test hole, and can compact the loose soil remaining in the test hole, thereby reducing the space occupied by the residual soil. After compaction is completed, the compaction circular plate 83 is controlled to reset, and then the control push rod 71 is used to control the sliding table 73 and the hole bottom compaction assembly 8 to reset along the guide track 72, and the entire base is moved to expose the drilled test hole, and test sand is poured into the test hole to obtain the volume of the test sand, and then the aggregate bottom box 2 is opened, the soil in the aggregate bottom box 2 is collected and weighed, and the roadbed compaction degree can be obtained by converting the volume of the test sand and the weight of the soil.

[0050] A method for detecting the compaction of a roadbed using a roadbed compaction detection device, the method steps are as follows:

[0051] S1, first move the entire base to stay on the roadbed, let the aggregate bottom box 2 fit the roadbed surface, then start the drilling rig assembly 4, drive the drilling screw 41 to rotate, and then control the drilling rig assembly 4 to move up and down on the vertical frame of the L-shaped base frame 1 through the lifting assembly 3, the drilling screw 41 will pass through the through-channels of the upper and lower bottom walls of the aggregate bottom box 2 and finally rotate into the ground, when the drilling screw 41 is drilling a hole, the soil brought out by the rotary blades of the drilling screw 41 will enter the aggregate bottom box 2, after the test hole is drilled, the soil remains in the aggregate bottom box 2, at this time, the drilling rig assembly 4 is controlled to move up through the lifting assembly 3, so that the drilling screw 41 first passes through the through-channel of the bottom wall of the aggregate bottom box 2 and moves up, and the drilling screw 41 stays in the aggregate bottom box 2;

[0052] S2, start the driving motor 51, and drive the driving shaft 522 to rotate through the driving motor 51, so as to drive the two linkage shafts 523 to rotate synchronously through the linkage gear set 524, and the two linkage shafts 523 can drive the two rotating shafts 61 to rotate synchronously on the top wall of the aggregate bottom box 2. At this time, the sweeping soft brushes 62 on the two rotating shafts 61 rotate synchronously, and the two sweeping soft brushes 62 rotate on both sides of the through-channel on the top wall of the aggregate bottom box 2. The drilling rig assembly 4 is controlled to move upward through the lifting assembly 3, so that the drilling column 41 passes through the through-channel on the bottom wall and the top wall of the aggregate bottom box 2 and moves upward. The drilling column 41 contaminated with soil continues to move upward, and when passing through the through-channel on the top wall of the aggregate bottom box 2, the sweeping is completed between the two rotating sweeping soft brushes 62, and the soil contaminated by the drilling column 41 is swept down and falls into the aggregate bottom box 2. The drilling column 41 that has completed the sweeping will eventually move to the top of the aggregate bottom box 2 and stop;

[0053] S3, start the control push rod 71, push the sliding table 73 and the hole bottom compaction assembly 8 to move along the guide track 72, and after moving, the compaction circular plate 83 finally stays above the bottom wall through-channel and the test hole of the aggregate bottom box 2 under the action of the pads of the guide long groove on the side wall of the guide track 72 and the positioning ring block 9;

[0054] S4, start the driving push rod 82 to push the compacting circular plate 83 through the bottom wall of the aggregate bottom box 2 and into the test hole. The compacting circular plate 83 moves downward in the test hole to compact the loose soil remaining in the test hole and reduce the space occupied by the residual soil. After the compaction is completed, the compacting circular plate 83 is reset, and then the control push rod 71 is used to control the sliding table 73 and the hole bottom compacting assembly 8 to reset along the guide track 72;

[0055] S5. Move the entire foundation seat to expose the drilled test hole, pour test sand into the test hole to obtain the volume of the test sand, then open the aggregate bottom box 2, collect the soil in the aggregate bottom box 2 and weigh it, and the roadbed compaction degree can be obtained by converting the test sand volume and soil weight.

[0056] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A roadbed compaction detection device, characterized in that: include: A base, the base comprising an L-shaped base frame (1) and a bottom aggregate box (2), the L-shaped base frame (1) being a metal frame, the bottom aggregate box (2) being arranged on the inner side of a horizontal frame body at the bottom end of the L-shaped base frame (1); A drilling rig soil taking mechanism, the drilling rig soil taking mechanism comprising a lifting assembly (3) and a drilling assembly (4), the lifting assembly (3) being arranged on a vertical frame body of an L-shaped base frame (1), the drilling assembly (4) being arranged at a lifting end of the lifting assembly (3), the drilling assembly (4) comprising a drilling screw (41), vertical through passages being provided on the upper and lower bottom walls of the aggregate bottom box (2), and the drilling screw (41) being directly opposite to the through passage of the aggregate bottom box (2); A sticky soil sweeping mechanism, the sticky soil sweeping mechanism being arranged on the aggregate bottom box (2) and acting on the drilling rotary column (41), the sticky soil sweeping mechanism comprising a synchronous driving member (5) and a bidirectional sweeping assembly (6), the synchronous driving member (5) being arranged on the top of the aggregate bottom box (2), the bidirectional sweeping assembly (6) being rotatably mounted on the inner side of the aggregate bottom box (2) and being located at the edges of both sides of the through-channel; A test hole compaction mechanism, the test hole compaction mechanism comprising a movement control component (7) and a hole bottom compaction component (8), the movement control component (7) being arranged on one side of the aggregate bottom box (2) close to the vertical frame of the L-shaped base frame (1), the hole bottom compaction component (8) being arranged on the moving end of the movement control component (7), and the end point of the movement path of the hole bottom compaction component (8) being located directly above the through-channel of the bottom wall of the aggregate bottom box (2).

2. A roadbed compaction detection device according to claim 1, characterized in that: The bidirectional sweeping assembly (6) comprises a rotating shaft (61) and a sweeping soft brush (62), wherein two rotating shafts (61) form a group and are mounted on the top surface of the aggregate bottom box (2) for vertical rotation, the two rotating shafts (61) are distributed on both sides of a through-channel on the top wall of the aggregate bottom box (2), the sweeping soft brush (62) is arranged on an axis of the rotating shaft (61) located on the inner side of the aggregate bottom box (2), and the rotation ranges of the two sweeping soft brushes (62) overlap in the through-channel of the aggregate bottom box (2).

3. A roadbed compaction detection device according to claim 2, characterized in that: The synchronous drive member (5) comprises a drive motor (51) and a synchronous drive frame (52), wherein the drive motor (51) is arranged on the top wall of the aggregate bottom box (2), and the synchronous drive frame (52) is arranged on the top wall of the aggregate bottom box (2), and one end of the synchronous drive frame (52) is connected to the output end of the drive motor (51), and the other end is connected to the rotating shaft (61) located on the outer shaft body of the aggregate bottom box (2).

4. A highway subgrade compaction detection device according to claim 3, characterized in that: The synchronous drive frame (52) comprises a bearing seat (521), a driving shaft (522), a linkage shaft (523) and a linkage gear set (524). The bearing seats (521) are arranged in three groups on the top wall of the aggregate bottom box (2). The driving shaft (522) is arranged on one of the bearing seats (521) and is connected to the output end of the driving motor (51). The linkage shafts (523) are arranged in parallel on the other two bearing seats (521) in a group of two. One end of the two linkage shafts (523) is close to the shaft body of the driving shaft (522) and the other end is close to the ends of the two rotating shafts (61). The linkage gear set (524) is arranged between the linkage shaft (523) and the shaft body of the driving shaft (522). The linkage gear set (524) is also arranged between the linkage shaft (523) and the end of the rotating shaft (61).

5. A highway subgrade compaction detection device according to claim 1, characterized in that: The movement control assembly (7) comprises a control push rod (71), a guide rail (72) and a sliding platform (73); the control push rod (71) is horizontally arranged outside the side wall of the aggregate bottom box (2); the guide rail (72) is arranged below the top wall of the aggregate bottom box (2); the sliding platform (73) is slidably mounted on the inner side of the guide rail (72); the hole bottom compaction assembly (8) is arranged below the sliding platform (73); and the push rod part of the control push rod (71) movably passes through the side wall of the aggregate bottom box (2) and is connected to the sliding platform (73).

6. A highway subgrade compaction detection device according to claim 5, characterized in that: The two side walls of the guide rail (72) are provided with long guide grooves, and a cushion block is provided on the side of the long guide groove away from the control push rod (71). The sliding platform (73) is provided with a horizontal positioning rod, and the positioning rod passes through the long guide grooves of the two side walls of the guide rail (72) in the horizontal direction.

7. A highway subgrade compaction detection device according to claim 5, characterized in that: The hole bottom compaction assembly (8) comprises a locking member (81), a driving push rod (82) and a compaction circular plate (83), wherein the locking member (81) is arranged at the bottom end of the sliding platform (73), the driving push rod (82) is arranged vertically below the locking member (81), and the output end of the driving push rod (82) is vertically downward, and the compaction circular plate (83) is arranged on the output end of the driving push rod (82).

8. A roadbed compaction detection device according to claim 7, characterized in that: A positioning ring block (9) is provided at the edge of the through-channel of the bottom wall of the aggregate bottom box (2); the positioning ring block (9) is located on a side of the through-channel away from the control push rod (71), and the positioning ring block (9) is located on the moving path of the compacting circular plate (83); a shielding ring plate for shielding soil is provided on a side of the through-channel of the bottom wall of the aggregate bottom box (2) away from the positioning ring block (9), and the top surface of the shielding ring plate and the bottom surface of the compacting circular plate (83) are in the same plane.

9. A method for using the highway subgrade compaction detection device according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: S1, first move the entire base to stay on the roadbed, so that the aggregate bottom box (2) is in contact with the surface of the roadbed, then start the drilling rig assembly (4), drive the drilling screw (41) to rotate, and then control the drilling rig assembly (4) to move up and down on the vertical frame of the L-shaped base frame (1) through the lifting assembly (3), the drilling screw (41) will pass through the through-channels of the upper and lower bottom walls of the aggregate bottom box (2) and finally rotate into the ground. When the drilling screw (41) is drilling a hole, the soil brought out by the rotary blades of the drilling screw (41) will enter the interior of the aggregate bottom box (2). After the test hole is drilled, the soil remains in the aggregate bottom box (2); S2, starting the driving motor (51), driving the driving shaft (522) to rotate through the driving motor (51), thereby driving the two linkage shafts (523) to rotate synchronously through the linkage gear set (524), and the two linkage shafts (523) can drive the two rotating shafts (61) to rotate synchronously on the top wall of the aggregate bottom box (2), at which time the sweeping soft brushes (62) on the two rotating shafts (61) rotate synchronously, and the two sweeping soft brushes (62) rotate on both sides of the channel penetrating the top wall of the aggregate bottom box (2), and the channel is The drilling rig assembly (4) is controlled to move upward by the lifting assembly (3), so that the drilling column (41) moves upward through the through-passages of the bottom wall and the top wall of the aggregate bottom box (2). The drilling column (41) contaminated with soil continues to move upward. When passing through the through-passage of the top wall of the aggregate bottom box (2), it is swept between two rotating sweeping soft brushes (62), and the soil contaminated by the drilling column (41) is swept down and falls into the aggregate bottom box (2). The drilling column (41) that has completed the sweeping will eventually move to the top of the aggregate bottom box (2) and stop. S3, start the control push rod (71), push the sliding table (73) and the hole bottom compaction assembly (8) to move along the guide track (72), and after the compaction circular plate (83) moves, it finally stays above the bottom wall through-channel and the test hole of the aggregate bottom box (2) under the action of the pads of the guide long groove on the side wall of the guide track (72) and the positioning ring block (9); S4, starting the driving push rod (82) to push the compacting circular plate (83) through the bottom wall of the aggregate bottom box (2) through the channel and into the test hole, the compacting circular plate (83) moves downward in the test hole, and can compact the loose soil remaining in the test hole, thereby reducing the space occupied by the residual soil. After the compaction is completed, the compacting circular plate (83) is reset, and then the control push rod (71) is used to control the sliding table (73) and the hole bottom compacting assembly (8) to reset along the guide track (72); S5. Move the entire foundation to expose the drilled test hole, pour test sand into the test hole, obtain the volume of the test sand, then open the aggregate bottom box (2), collect the soil in the aggregate bottom box (2) and weigh it. The compaction degree of the roadbed can be obtained by converting the volume of the test sand and the weight of the soil.

Images