Automatic cutting sampling device for raw soil sample box and use method thereof

Abstract

The invention discloses an automatic cutting and sampling device for a raw soil sample box and a use method thereof, comprising a push rod assembly, a clamping assembly, a transport guide rail, a sampling assembly, a cutting assembly and a control assembly, wherein the clamping assembly clamps the sample box, a toothed track is arranged on the upper end surface of the transport guide rail, a gear motor is fixed on the lower end surface of the clamping assembly, the gear motor cooperates with the toothed track, the push rod assembly is arranged on one side in the width direction of the transport guide rail, the sampling assembly is arranged on the other side in the width direction of the transport guide rail, and the cutting assembly is arranged between the transport guide rail and the sampling assembly, the centers of the push rod assembly and the sampling assembly are on the same straight line, and the push rod assembly and the sampling assembly are both perpendicular to the transport guide rail, the centers of the push rod assembly, the sampling assembly and the sample box are on the same plane, and the push rod assembly, the clamping assembly, the gear motor, the sampling assembly and the cutting assembly are electrically connected to the control assembly respectively.

Description

Technical Field

[0001] The invention belongs to the technical field of geological exploration and sampling equipment, and particularly relates to an automatic cutting sampling device for an original soil sample box and a use method thereof. Background Art

[0002] In the process of geotechnical engineering investigation, geotechnical experiment is the most effective testing method. The accuracy of the experimental results has an important impact on the safety and quality of the entire project. The quality of the test samples is the key factor of the geotechnical test results. The original process of geotechnical test is on-site sampling, laboratory sample preparation (making test samples), and laboratory testing. Sample preparation is to open the package after the soil sample is transported to the laboratory, take out the soil sample, and process the soil sample according to the specified shape to make it meet the further requirements of the post-test. The original state and authenticity of the soil sample must be guaranteed during the sample preparation process. At present, the alignment, clamping, opening, cutting, and transportation stages of the sample preparation process are all manual operations, and there is no assembly line, and the sample preparation efficiency is low. Among them, cutting sampling is the key and the core of the sample preparation process. Therefore, it is necessary to develop an automatic cutting and sampling device for the original soil sample preparation box. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an automatic cutting sampling device for a raw soil sample box and a method of use, thereby overcoming the problems existing in the prior art.

[0004] In order to solve the technical problem, the technical solution of the present invention is: an automatic cutting and sampling device for a raw soil sample box, comprising a push rod assembly, a clamping assembly, a transport rail, a sampling assembly, a cutting assembly and a control assembly, the clamping assembly clamps the sample box, the upper end surface of the transport rail is provided with a toothed track, the lower end surface of the clamping assembly is fixed with a gear motor, the gear motor cooperates with the toothed track, the push rod assembly is arranged on one side in the width direction of the transport rail, the sampling assembly is arranged on the other side in the width direction of the transport rail, and the cutting assembly is arranged between the transport rail and the sampling assembly, the centers of the push rod assembly and the sampling assembly are on the same straight line, and the push rod assembly and the sampling assembly are both perpendicular to the transport rail, the centers of the push rod assembly, the sampling assembly and the sample box are on the same plane, and the push rod assembly, the clamping assembly, the gear motor, the sampling assembly and the cutting assembly are electrically connected to the control assembly respectively.

[0005] Preferably, the push rod assembly includes a push rod motor, a push rod, a push rod disk and a fixed seat, the push rod motor is fixed on the fixed seat, the output end of the push rod motor is connected to the push rod through a gear converter, wherein the outer wall of the push rod close to one end of the push rod motor is provided with a thread, the other end of the push rod is connected to the push rod disk, wherein the diameter of the push rod disk is less than or equal to the end face diameter of the sample preparation box, the centers of the push rod motor, the push rod and the push rod disk are on the same straight line, wherein the push rod disk and the end face center of the sample preparation box are on the same straight line and parallel to each other, and the push rod motor is electrically connected to the control assembly.

[0006] Preferably, the sampling assembly includes a turntable, a turntable motor, a first working arm, a second working arm and a third working arm, the lower end of the turntable motor is vertically fixed on the turntable fixing seat, the upper end of the turntable motor is connected to the center of the turntable, the first working arm, the second working arm and the third working arm are respectively fixed on the turntable, wherein the angle between the first working arm and the second working arm is 90°, and the angle between the second working arm and the third working arm is 90°, and the turntable motor is electrically connected to the control assembly.

[0007] Preferably, the first working arm comprises an end face cutting tool, an end face cutting rod and an end face cutting rotating motor, wherein the end face cutting rotating motor is horizontally fixed on a turntable, the output end of the end face cutting rotating motor is connected to the end face cutting rod, and the other end of the end face cutting rod is connected to the end face cutting tool, wherein the diameter of the end face cutting tool is the same as the diameter of the end face of the sample preparation box, and the end face cutting tool and the center of the sample preparation box are on the same plane, the end face cutting tool is a straight blade or a bevel blade, and the end face cutting rotating motor is electrically connected to the control component.

[0008] Preferably, the second working arm comprises a sampling cutting tool, a sampling cutting rod and a sampling cutting rotating motor, wherein the sampling cutting rotating motor is horizontally fixed on a turntable, the output end of the sampling cutting rotating motor is connected to the sampling cutting rod, the other end of the sampling cutting rod is connected to the sampling cutting tool, the sampling cutting tool is selected from a ring tool or a ringless tool, and the sampling cutting tool and the center of the sample preparation box are in the same plane, the ring tool or the ringless tool has no blade at the center position, and blades are arranged around it, wherein the diameter of the ring tool or the ringless tool at the center position is 60 mm, and the sampling cutting rotating motor is electrically connected to the control component.

[0009] Preferably, the third working arm includes a sample ring, a sample rod and a sample rotation motor, wherein the sample rotation motor is horizontally fixed on the turntable, the output end of the sample rotation motor is connected to the sample rod, and the other end of the sample rod is connected to the sample ring, the diameter of the sample ring is 60 mm, and the sample ring and the center of the sample preparation box are in the same plane, and the sample rotation motor is electrically connected to the control component.

[0010] Preferably, the cutting assembly includes a cutter, a pneumatic pump and a door-type frame. The door-type frame is fixed between the transport rail and the sampling assembly. A pneumatic pump is arranged on the top of the door-type frame. The output end of the pneumatic pump is connected to the cutter. The plane where the cutter is located is parallel to the plane where the end face of the sample preparation box is located. The pneumatic pump is electrically connected to the control assembly.

[0011] Preferably, a first position sensor is provided at the center position of the lower end surface of the clamping assembly, and a second position sensor is provided on the transport rail connecting the centers of the push rod assembly and the sampling assembly. The first position sensor and the second position sensor are electrically connected to the control assembly respectively.

[0012] Preferably, the clamping assembly includes a base, an upper chuck, a clamping push rod and a push rod gear motor, the lower end of the clamping push rod is fixed to one side of the upper end surface of the base, one end of the upper chuck is provided with a mounting hole, wherein a push rod gear motor is fixed to one side of the mounting hole, the upper end of the clamping push rod passes through the mounting hole, wherein a toothed track is provided on the side of the clamping push rod close to the push rod gear motor, the push rod gear motor cooperates with the toothed track, the push rod gear motor is electrically connected to the control assembly, and the control assembly is a PLC control unit.

[0013] A method for using the automatic cutting sampling device of the original soil sample preparation box as described in any one of the above items comprises the following steps:

[0014] Step 1: The control component controls the clamping component to clamp the sample preparation box, and then the control component controls the gear motor to start, and the clamping component moves along the toothed track of the transport guide rail to the fixed position of the push rod component and the sampling component under the drive of the gear motor;

[0015] Step 2: When the clamping assembly reaches the fixed position of the push rod assembly and the sampling assembly, it stops so that the center of the push rod assembly and the sampling assembly is in the same straight line with the axial center of the sample preparation box;

[0016] Step 3: The control component controls the push rod component to push out the soil sample in the sample preparation box, and then the control component controls the sampling component to sample the pushed out soil sample;

[0017] Step 4: The control component controls the cutting component to cut and separate the soil sample sampled by the sampling component from the remaining soil sample in the sample preparation box.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The present invention provides a device and method that can realize automatic cutting and sampling of key actions such as end face soil removal, sample cutting, and ring sampling of a sample preparation box, thereby reducing manual intervention, realizing the automation of the original soil sample preparation process, and laying a good foundation for subsequent operations. Compared with manual sample preparation, the efficiency is increased by 100%, the labor intensity of the experimenters and environmental pollution are reduced, and the sample preparation efficiency of the original soil sample is greatly improved;

[0020] (2) A first position sensor is provided at the center position of the lower end surface of the base of the clamping assembly of the present invention, and a second position sensor is provided on the transport rail connecting the center of the push rod assembly and the sampling assembly. When the first position sensor at the lower end of the base moves to the second position sensor of the transport rail, it is triggered and the gear motor stops, so that the sample preparation box can be automatically moved to the center position of the push rod assembly and the sampling assembly, and the alignment accuracy is high;

[0021] (3) The push rod assembly of the present invention pushes the push rod disk through the push rod motor. The push rod disk and the end surface center of the sample preparation box are on the same straight line and parallel to each other. The diameter of the push rod disk is less than or equal to the end surface diameter of the sample preparation box. Therefore, the push rod assembly can quickly push out the soil sample in the sample preparation box. The soil sample is evenly stressed, which can improve the accuracy of the subsequent geotechnical experiment.

[0022] (4) The sampling assembly of the present invention includes three working arms, and the angle between the three working arms is 90°. The first working arm can cut the entire end face of the soil sample to achieve the effect of removing excess soil on the surface. The sampling cutting tool of the second working arm has no cutting blade in the middle collection range. During rotation, only the soil sample outside the collection range is cut and removed, and finally the cylindrical soil sample to be collected is exposed. The sample ring of the third working arm can be pushed into the cylindrical soil sample by the push rod motor, and then the cutting assembly falls to separate the soil sample and the sample ring. In this way, the middle soil sample can be quickly pressed into the sample ring. The soil sample pressed into the sample ring can reflect the real situation of the soil sample to the greatest extent, greatly improving the accuracy of the later geotechnical experiment.

[0023] (5) The clamping assembly of the present invention comprises a base, an upper clamping head, a clamping push rod and a push rod gear motor. The push rod gear motor drives the upper clamping head to move up and down along the toothed track on the clamping push rod, thereby clamping or releasing the sample box, thereby realizing automatic clamping of the sample box. A gear motor is arranged at the lower end of the base, and a toothed track is arranged on the upper end surface of the transport guide rail. The gear motor cooperates with the toothed track, and the gear motor can drive the base to the fixing position of the automatic cover removal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 , a schematic structural diagram of an automatic cutting sampling device for a raw soil sample box of the present invention;

[0025] Figure 2 , a schematic diagram of the structure of the clamping assembly of the automatic cutting sampling device of the raw soil sample box of the present invention.

[0026] Description of reference numerals:

[0027] 1. Push rod assembly, 2. Clamping assembly, 3. Transport rail, 4. Sampling assembly, 5. Cutting assembly, 6. Sample preparation box, 7. Gear motor, 8. First position sensor, 9. Second position sensor;

[0028] 1-1, push rod motor, 1-2, push rod, 1-3, push rod plate, 1-4, fixed seat;

[0029] 2-1, base, 2-2, upper chuck, 2-3, clamping push rod, 2-4, push rod gear motor;

[0030] 4-1, turntable, 4-2, turntable motor, 4-3, first working arm, 4-4, second working arm, 4-5, third working arm;

[0031] 4-3-1, end face cutting tool, 4-3-2, end face cutting rod, 4-3-3, end face cutting rotating motor;

[0032] 4-4-1, sampling and cutting tool, 4-4-2, sampling and cutting rod, 4-4-3, sampling and cutting rotating motor;

[0033] 4-5-1, sample ring, 4-5-2, sample rod, 4-5-3, sample rotation motor;

[0034] 5-1. Cutter, 5-2. Pneumatic pump, 5-3. Door frame. DETAILED DESCRIPTION

[0035] The specific implementation mode of the present invention is described below in conjunction with embodiments:

[0036] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0037] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0038] Example 1

[0039] like Figure 1As shown, the present invention discloses an automatic cutting and sampling device for a raw soil sample box, comprising a push rod assembly 1, a clamping assembly 2, a transport rail 3, a sampling assembly 4, a cutting assembly 5 and a control assembly. The clamping assembly 2 clamps the sample box 6, the upper end surface of the transport rail 3 is provided with a toothed track, the lower end surface of the clamping assembly 2 is fixed with a gear motor 7, the gear motor 7 cooperates with the toothed track, the push rod assembly 1 is arranged on one side of the transport rail 3 in the width direction, the sampling assembly 4 is arranged on the other side of the transport rail 3 in the width direction, and the cutting assembly 5 is arranged between the transport rail 3 and the sampling assembly 4, the centers of the push rod assembly 1 and the sampling assembly 4 are on the same straight line, and the push rod assembly 1 and the sampling assembly 4 are both perpendicular to the transport rail 3, the centers of the push rod assembly 1, the sampling assembly 4 and the sample box 6 are on the same plane, and the push rod assembly 1, the clamping assembly 2, the gear motor 7, the sampling assembly 4 and the cutting assembly 5 are electrically connected to the control assembly respectively.

[0040] The toothed track of the transport rail 3 is arranged along the length direction of the transport rail 3 .

[0041] Example 2

[0042] like Figure 1 As shown, the preferred push rod assembly 1 includes a push rod motor 1-1, a push rod 1-2, a push rod disk 1-3 and a fixed seat 1-4, the push rod motor 1-1 is fixed on the fixed seat 1-4, the output end of the push rod motor 1-1 is connected to the push rod 1-2 through a gear converter, wherein the outer wall of the push rod 1-2 close to one end of the push rod motor 1-1 is provided with a thread, the other end of the push rod 1-2 is connected to the push rod disk 1-3, wherein the diameter of the push rod disk 1-3 is less than or equal to the end face diameter of the sample preparation box 6, the centers of the push rod motor 1-1, the push rod 1-2 and the push rod disk 1-3 are on the same straight line, wherein the push rod disk 1-3 and the end face center of the sample preparation box 6 are on the same straight line and parallel to each other, and the push rod motor 1-1 is electrically connected to the control assembly.

[0043] The push rod disk 1 - 3 is provided with a push rod position sensor, and the position sensor is electrically connected to the control component.

[0044] Example 3

[0045] like Figure 1As shown, preferably, the sampling component 4 includes a turntable 4-1, a turntable motor 4-2, a first working arm 4-3, a second working arm 4-4 and a third working arm 4-5, the lower end of the turntable motor 4-2 is vertically fixed on the turntable fixing seat, the upper end of the turntable motor 4-2 is connected to the center of the turntable 4-1, the first working arm 4-3, the second working arm 4-4 and the third working arm 4-5 are respectively fixed on the turntable 4-1, wherein the angle between the first working arm 4-3 and the second working arm 4-4 is 90°, and the angle between the second working arm 4-4 and the third working arm 4-5 is 90°, and the turntable motor 4-2 is electrically connected to the control component.

[0046] Position sensors are arranged at the ends of the first working arm 4-3, the second working arm 4-4 and the third working arm 4-5, and the position sensors are electrically connected to the control assembly.

[0047] like Figure 1 As shown, preferably, the first working arm 4-3 includes an end face cutting tool 4-3-1, an end face cutting rod 4-3-2 and an end face cutting rotating motor 4-3-3, wherein the end face cutting rotating motor 4-3-3 is horizontally fixed on the turntable 4-1, the output end of the end face cutting rotating motor 4-3-3 is connected to the end face cutting rod 4-3-2, and the other end of the end face cutting rod 4-3-2 is connected to the end face cutting tool 4-3-1, wherein the diameter of the end face cutting tool 4-3-1 is the same as the end face diameter of the sample preparation box 6, and the end face cutting tool 4-3-1 and the center of the sample preparation box 6 are on the same plane, the end face cutting tool 4-3-1 is a straight blade or an oblique blade, and the end face cutting rotating motor 4-3-3 is electrically connected to the control component.

[0048] like Figure 1 As shown, preferably, the second working arm 4-4 comprises a sampling cutting tool 4-4-1, a sampling cutting rod 4-4-2 and a sampling cutting rotating motor 4-4-3, wherein the sampling cutting rotating motor 4-4-3 is horizontally fixed on the turntable 4-1, the output end of the sampling cutting rotating motor 4-4-3 is connected to the sampling cutting rod 4-4-2, and the other end of the sampling cutting rod 4-4-2 is connected to the sampling cutting tool 4-4-1, the sampling cutting tool 4-4-1 is selected from a ring tool or a ringless tool, and the sampling cutting tool 4-4-1 and the center of the sample preparation box 6 are in the same plane, the ring tool or the ringless tool has no blade at the center position, and blades are arranged around, wherein the diameter of the ring tool or the ringless tool at the center position is 60mm, and the sampling cutting rotating motor 4-4-3 is electrically connected to the control component.

[0049] The ring-shaped cutter has a ring in the middle and blades are arranged around the ring. The ringless cutter has no ring in the middle and blades are arranged around the ring.

[0050] like Figure 1As shown, preferably, the third working arm 4-5 includes a sample ring 4-5-1, a sample rod 4-5-2 and a sample rotation motor 4-5-3, wherein the sample rotation motor 4-5-3 is horizontally fixed on the turntable 4-1, the output end of the sample rotation motor 4-5-3 is connected to the sample rod 4-5-2, and the other end of the sample rod 4-5-2 is connected to the sample ring 4-5-1, the diameter of the sample ring 4-5-1 is 60 mm, and the sample ring 4-5-1 and the center of the sample preparation box 6 are in the same plane, and the sample rotation motor 4-5-3 is electrically connected to the control component.

[0051] Example 4

[0052] like Figure 1 As shown, preferably, the cutting assembly 5 includes a cutter 5-1, a pneumatic pump 5-2 and a door-type frame 5-3, the door-type frame 5-3 is fixed between the transport rail 3 and the sampling assembly 4, a pneumatic pump 5-2 is arranged on the top of the door-type frame 5-3, the output end of the pneumatic pump 5-2 is connected to the cutter 5-1, the plane where the cutter 5-1 is located is parallel to the plane where the end face of the sample preparation box 6 is located, and the pneumatic pump 5-2 is electrically connected to the control assembly.

[0053] Example 5

[0054] like Figure 1 As shown, preferably, a first position sensor 8 is provided at the center position of the lower end surface of the clamping assembly 2, and a second position sensor 9 is provided on the transport rail 3 connecting the centers of the push rod assembly 1 and the sampling assembly 4, and the first position sensor 8 and the second position sensor 9 are electrically connected to the control assembly respectively.

[0055] Example 6

[0056] like Figure 2 As shown, preferably, the clamping assembly 2 includes a base 2-1, an upper chuck 2-2, a clamping push rod 2-3 and a push rod gear motor 2-4, the lower end of the clamping push rod 2-3 is fixed to one side of the upper end surface of the base 2-1, one end of the upper chuck 2-2 is provided with a mounting hole, wherein a push rod gear motor 2-4 is fixed to one side of the mounting hole, the upper end of the clamping push rod 2-3 passes through the mounting hole, wherein a toothed track is provided on the side of the clamping push rod 2-3 close to the push rod gear motor 2-4, the push rod gear motor 2-4 cooperates with the toothed track, and the push rod gear motor 2-4 is electrically connected to the control assembly, and the control assembly is a PLC control unit.

[0057] like Figure 2 As shown, preferably, the lower end of the base 2-1 is a rectangular structure, and a U-shaped groove is provided in the middle position of the upper end of the base 2-1, wherein the U-shaped groove cooperates with the outer wall of the sample preparation box 6; the upper end of the upper chuck 2-2 is a rectangular structure, and a U-shaped groove is provided in the middle position of the lower end of the upper chuck 2-2, wherein the U-shaped groove cooperates with the outer wall of the sample preparation box 6.

[0058] Preferably, the control component is a PLC control unit.

[0059] A gear motor 7 is fixed to the lower end surface of the base 2 - 1 , wherein the number of gear motors 7 can be multiple.

[0060] The toothed track on the side of the clamping push rod 2 - 3 is arranged along the height direction of the clamping push rod 2 - 3 .

[0061] A first position sensor 8 is provided at the lower end of the center position of the U-shaped groove.

[0062] Example 7

[0063] Preferably, a method for using the automatic cutting sampling device of the original soil sample preparation box as described in any one of the above items comprises the following steps:

[0064] Step 1: The control component controls the clamping component 2 to clamp the sample preparation box 6, and then the control component controls the gear motor 7 to start, and the clamping component 2 is driven by the gear motor 7 to move along the toothed track of the transport guide rail 3 to the fixed position of the push rod component 1 and the sampling component 4;

[0065] Step 2: When the clamping assembly 2 reaches the fixed position of the push rod assembly 1 and the sampling assembly 4, it stops, so that the center of the push rod assembly 1 and the sampling assembly 4 is in the same straight line with the axial center of the sample preparation box 6;

[0066] Step 3: The control component controls the push rod component 1 to push out the soil sample in the sample preparation box 6, and then the control component controls the sampling component 4 to sample the pushed out soil sample;

[0067] Step 4: The control component controls the cutting component 5 to cut and separate the soil sample sampled by the sampling component 4 from the remaining soil sample in the sample preparation box 6 .

[0068] The working principle of the present invention is as follows:

[0069] The invention discloses a device for automatically performing end face soil excision, sampling cutting and sampling cutting on an original soil sample (referred to as original soil), realizing automatic cutting and sampling of original soil in a sample preparation box 6 during original soil sampling process, a clamping component 2 realizes clamping and fixing of the sample preparation box 6, and can be positioned at the midline position of a push rod component 1 and a sampling component 4 by moving forward and backward on a transport guide rail 3, a push rod 1-2 of the push rod component 1 is driven by a push rod motor 1-1, and realizes the overall pushing of the original soil sample in the sample preparation box 6 horizontally fixed by the clamping component 2 to protrude from the end face of the shell to a certain distance, the sampling component 4 is composed of a first working arm 4-3, a second working arm 4-4 and a third working arm 4-5 fixed on a turntable 4-1, and the working arm is selected by rotating the turntable 4-1 to realize end face cutting, sampling soil cutting and sampling ring filling processes, and a cutter 5-1 realizes end face cutting after the sampling component 4 performs the sample ring 4-5-1 filling process.

[0070] The method of use of the present invention is as follows:

[0071] Step 1: The control component controls the clamping component 2 to clamp the sample preparation box 6, and then the control component controls the gear motor 7 to start, and the clamping component 2 is driven by the gear motor 7 to move along the toothed track of the transport guide rail 3 to the fixed position of the push rod component 1 and the sampling component 4;

[0072] Step 2: When the first position sensor 8 and the second position sensor 9 at the lower end of the base 2-1 are triggered, the control component controls the gear motor 7 to stop, so that the center of the push rod assembly 1 and the sampling assembly 4 is in the same straight line with the axial center of the sample preparation box 6;

[0073] Step 3: The control component controls the push rod motor 1-1 to start, and the push rod plate 1-3 moves toward the soil sample under the drive of the push rod motor 1-1, and pushes the soil sample out at a set speed and distance. While the soil sample is being pushed out, the first working arm 4-3 rotates and cuts the end surface of the soil sample, cutting off the excess soil on the surface and making the end surface neat;

[0074] The push rod plate 1-3 is continuously driven by the push rod motor 1-1 to move toward the soil sample. While the soil sample is being pushed out, the second working arm 4-4 rotates and moves to cut the sampling area, cutting off the excess soil to leave a cylindrical soil sample.

[0075] The push rod plate 1-3 is continuously driven by the push rod motor 1-1 to move toward the soil sample, and the soil sample is pushed out and pressed into the sample ring 4-5-1 of the third working arm 4-5;

[0076] Step 4: The control component controls the cutter 5 - 1 of the cutting component 5 to fall, and separates the soil sample sampled by the sampling component 4 from the remaining soil sample in the sample preparation box 6 .

[0077] End face cutting

[0078] The turntable 4-1 is driven by the turntable motor 4-2 to rotate 90 degrees, and the first working arm 4-3 is selected to align with the center line of the original soil sample. The first working arm 4-3 is provided with an end face cutting rotating motor 4-3-3, so that the end face cutting tool 4-3-1 on the three-claw clamp at the front end of the working arm rotates at a uniform speed, wherein the end face cutting tool 4-3-1 can be straight blade or oblique blade, and the end face blade with a special structure can cut the entire end face of the soil sample when rotating, thereby achieving the effect of removing excess soil on the surface.

[0079] Sampling area cutting

[0080] The turntable 4-1 is driven by the turntable motor 4-2 to rotate 90 degrees, and the second working arm 4-4 is selected to align with the center line of the original soil sample. The second working arm 4-4 is provided with a sampling and cutting rotating motor 4-4-3, so that the sampling and cutting tool 4-4-1 on the three-claw clamp at the front end of the working arm rotates at a uniform speed. The sampling and cutting tool 4-4-1 is divided into a ringed or ringless tool. The sampling blade structure with a special structure is designed so that there is no cutting blade within the middle collection range of 60mm in diameter. During rotation, only the soil samples outside the collection range are cut and removed, and finally the cylindrical soil sample to be collected is exposed.

[0081] Sampling loop installation and cutting

[0082] The turntable 4-1 is driven by the turntable motor 4-2 to rotate 90°, the third working arm 4-5 is selected to align with the center line of the original soil sample, the push rod plate 1-3 is driven by the push rod motor 1-1 to press the soil sample into the sample ring 4-5-1 of the third working arm 4-5, and then the cutter 5-1 falls to separate the soil sample and the sample ring 4-5-1, the turntable 4-1 is driven by the turntable motor 4-2 to rotate 90° and stop, and finally the sample ring 4-5-1 is collected.

[0083] The control logic of the present invention is as follows: 1. The PLC control unit controls the forward and reverse rotation of the push rod motor 1-1, drives the push rod plate 1-3 to move forward and backward, pushes the soil sample forward in the sample preparation box 6, and rotates or stops the push rod motor 1-1 according to the control of the push rod position sensor.

[0084] 2. The PLC control unit controls the turntable motor 4-2 to rotate forward and reverse and make 90° steps. After each working arm reaches the position, the position sensor feeds back to the PLC for positioning braking.

[0085] 3. After the first working arm 4-3 is positioned, the PLC control unit controls the push rod motor 1-1 and the end face cutting rotation motor 4-3-3 to rotate simultaneously to perform end face soil cutting. After reaching the first push rod position sensor, the two motors stop working.

[0086] 4. After the second working arm 4-4 is positioned, the PLC control unit controls the push rod motor 1-1 and the sampling and cutting rotating motor 4-4-3 to rotate simultaneously to cut the soil in the sampling area. After reaching the second push rod position sensor, the two motors stop working.

[0087] 5. After the third working arm 4-5 is positioned, the PLC control unit controls the push rod motor 1-1 to rotate, presses the soil sample into the sample ring 4-5-1 of the third working arm 4-5, and stops the motor after reaching the third push rod position sensor.

[0088] 6. The third working arm 4-5 is positioned, the push rod motor 1-1 stops working, and the PLC control unit controls the cutter 5-1 to fall and cut the sample ring 4-5-1.

[0089] 7. After the cutter 5-1 is reset, the PLC control unit controls the turntable 4-1 to continue rotating 90° and then stop, and takes out the sample ring 4-5-1.

[0090] The present invention provides a device and method that can realize automatic cutting and sampling of key actions such as end face soil excision of a sample preparation box, sample cutting, and ring sampling, thereby reducing manual intervention, realizing automation of the original soil sample preparation process, and laying a good foundation for subsequent operations. Compared with manual sample preparation, the efficiency is increased by 100%, the labor intensity of experimenters and environmental pollution are reduced, and the sample preparation efficiency of original soil samples is greatly improved.

[0091] A first position sensor is arranged at the center position of the lower end surface of the base of the clamping assembly of the present invention, and a second position sensor is arranged on the transport rail of the center line of the push rod assembly and the sampling assembly. When the first position sensor at the lower end of the base moves to the second position sensor of the transport rail, it is triggered and the gear motor stops, so that the sample preparation box can be automatically moved to the center position of the push rod assembly and the sampling assembly, and the alignment accuracy is high.

[0092] The push rod assembly of the present invention pushes the push rod disk through the push rod motor. The push rod disk and the end surface center of the sample preparation box are on the same straight line and parallel to each other. The diameter of the push rod disk is less than or equal to the end surface diameter of the sample preparation box. Therefore, the push rod assembly can quickly push out the soil sample in the sample preparation box, and the soil sample is evenly stressed, which can improve the accuracy of subsequent geotechnical experiments.

[0093] The sampling assembly of the present invention comprises three working arms, and the angle between the three working arms is 90 degrees. The first working arm can cut the entire end face of the soil sample to achieve the effect of removing excess soil on the surface. There is no cutting blade in the middle collection range of the sampling cutting tool of the second working arm. During rotation, only the soil sample outside the collection range is cut and removed, and finally the cylindrical soil sample to be collected is exposed. The sample ring of the third working arm can be pushed by the push rod motor to be pressed into the cylindrical soil sample, and then the cutting assembly falls to separate the soil sample and the sample ring, so that the middle soil sample can be quickly pressed into the sample ring, and the soil sample pressed into the sample ring can reflect the real situation of the soil sample to the greatest extent, greatly improving the accuracy of the later geotechnical experiment.

[0094] The clamping assembly of the present invention comprises a base, an upper clamping head, a clamping push rod and a push rod gear motor. The push rod gear motor drives the upper clamping head to move up and down along a toothed track on the clamping push rod, thereby clamping or releasing a sample preparation box, thereby realizing automatic clamping of the sample preparation box. A gear motor is arranged at the lower end of the base, and a toothed track is arranged on the upper end surface of the transport guide rail. The gear motor cooperates with the toothed track, and the gear motor can drive the base to the fixing position of the automatic cover removal assembly.

[0095] The preferred embodiments of the present invention are described in detail, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0096] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. An automatic cutting and sampling device for a raw soil sample box, characterized in that: The invention comprises a push rod assembly (1), a clamping assembly (2), a transport rail (3), a sampling assembly (4), a cutting assembly (5) and a control assembly, wherein the clamping assembly (2) clamps a sample preparation box (6), the upper end surface of the transport rail (3) is provided with a toothed track, the lower end surface of the clamping assembly (2) is fixed with a gear motor (7), the gear motor (7) cooperates with the toothed track, the push rod assembly (1) is arranged on one side of the transport rail (3) in the width direction, the sampling assembly (4) is arranged on the other side of the transport rail (3) in the width direction, and The cutting assembly (5) is arranged between the transport rail (3) and the sampling assembly (4); the centers of the push rod assembly (1) and the sampling assembly (4) are on the same straight line, and the push rod assembly (1) and the sampling assembly (4) are perpendicular to the transport rail (3); the centers of the push rod assembly (1), the sampling assembly (4) and the sample preparation box (6) are on the same plane; and the push rod assembly (1), the clamping assembly (2), the gear motor (7), the sampling assembly (4) and the cutting assembly (5) are respectively electrically connected to the control assembly; The push rod assembly (1) comprises a push rod motor (1-1), a push rod (1-2), a push rod disk (1-3) and a fixed seat (1-4), wherein the push rod motor (1-1) is fixed on the fixed seat (1-4), and the output end of the push rod motor (1-1) is connected to the push rod (1-2) through a gear converter, wherein the outer wall of the push rod (1-2) close to one end of the push rod motor (1-1) is provided with a thread, and the other end of the push rod (1-2) is connected to the push rod disk (1-3), wherein the diameter of the push rod disk (1-3) is less than or equal to the end face diameter of the sample preparation box (6), the centers of the push rod motor (1-1), the push rod (1-2) and the push rod disk (1-3) are on the same straight line, wherein the centers of the push rod disk (1-3) and the end faces of the sample preparation box (6) are on the same straight line and are parallel to each other, and the push rod motor (1-1) is electrically connected to the control assembly; The sampling assembly (4) comprises a turntable (4-1), a turntable motor (4-2), a first working arm (4-3), a second working arm (4-4) and a third working arm (4-5); the lower end of the turntable motor (4-2) is vertically fixed on a turntable fixing seat; the upper end of the turntable motor (4-2) is connected to the center of the turntable (4-1); the first working arm (4-3), the second working arm (4-4) and the third working arm (4-5) are respectively fixed on the turntable (4-1); the angle between the first working arm (4-3) and the second working arm (4-4) is 90°, and the angle between the second working arm (4-4) and the third working arm (4-5) is 90°; and the turntable motor (4-2) is electrically connected to the control assembly; The cutting assembly (5) comprises a cutter (5-1), a pneumatic pump (5-2) and a door-type frame (5-3); the door-type frame (5-3) is fixed between the transport rail (3) and the sampling assembly (4); a pneumatic pump (5-2) is arranged on the top of the door-type frame (5-3); an output end of the pneumatic pump (5-2) is connected to the cutter (5-1); a plane where the cutter (5-1) is located is parallel to a plane where an end face of the sample preparation box (6) is located; and the pneumatic pump (5-2) is electrically connected to the control assembly.

2. The automatic cutting and sampling device for raw soil sample box according to claim 1 is characterized in that: The first working arm (4-3) comprises an end face cutting tool (4-3-1), an end face cutting rod (4-3-2) and an end face cutting rotating motor (4-3-3), wherein the end face cutting rotating motor (4-3-3) is horizontally fixed on the turntable (4-1), the output end of the end face cutting rotating motor (4-3-3) is connected to the end face cutting rod (4-3-2), and the other end of the end face cutting rod (4-3-2) is connected to the end face cutting tool (4-3-1), wherein the diameter of the end face cutting tool (4-3-1) is the same as the end face diameter of the sample preparation box (6), and the center of the end face cutting tool (4-3-1) and the sample preparation box (6) are on the same plane, the end face cutting tool (4-3-1) is a straight blade or an oblique blade, and the end face cutting rotating motor (4-3-3) is electrically connected to a control component.

3. The automatic cutting and sampling device for raw soil sample box according to claim 1 is characterized in that: The second working arm (4-4) comprises a sampling cutting tool (4-4-1), a sampling cutting rod (4-4-2) and a sampling cutting rotating motor (4-4-3), wherein the sampling cutting rotating motor (4-4-3) is horizontally fixed on the turntable (4-1), the output end of the sampling cutting rotating motor (4-4-3) is connected to the sampling cutting rod (4-4-2), and the other end of the sampling cutting rod (4-4-2) is connected to the sampling cutting tool (4-4-1), the sampling cutting tool (4-4-1) is selected from a ring-shaped tool or a ringless tool, and the sampling cutting tool (4-4-1) and the center of the sample preparation box (6) are on the same plane, the ring-shaped tool or the ringless tool has no blade at the center position, and blades are arranged around, wherein the diameter of the ring-shaped tool or the ringless tool at the center position is 60 mm, and the sampling cutting rotating motor (4-4-3) is electrically connected to the control component.

4. The automatic cutting and sampling device for raw soil sample box according to claim 1 is characterized in that: The third working arm (4-5) comprises a sample ring (4-5-1), a sample rod (4-5-2) and a sample rotating motor (4-5-3), wherein the sample rotating motor (4-5-3) is horizontally fixed on the turntable (4-1), an output end of the sample rotating motor (4-5-3) is connected to the sample rod (4-5-2), and the other end of the sample rod (4-5-2) is connected to the sample ring (4-5-1), the diameter of the sample ring (4-5-1) is 60 mm, and the sample ring (4-5-1) and the center of the sample preparation box (6) are on the same plane, and the sample rotating motor (4-5-3) is electrically connected to a control component.

5. The automatic cutting and sampling device for raw soil sample box according to claim 1 is characterized in that: A first position sensor (8) is arranged at the center position of the lower end surface of the clamping assembly (2), and a second position sensor (9) is arranged on the transport guide rail (3) connecting the centers of the push rod assembly (1) and the sampling assembly (4), and the first position sensor (8) and the second position sensor (9) are respectively electrically connected to the control assembly.

6. The automatic cutting and sampling device for raw soil sample box according to claim 1 is characterized in that: The clamping assembly (2) comprises a base (2-1), an upper clamp (2-2), a clamping push rod (2-3) and a push rod gear motor (2-4); the lower end of the clamping push rod (2-3) is fixed to one side of the upper end surface of the base (2-1); one end of the upper clamp (2-2) is provided with a mounting hole, wherein the push rod gear motor (2-4) is fixed to one side of the mounting hole; the upper end of the clamping push rod (2-3) passes through the mounting hole, wherein a toothed track is provided on the side of the clamping push rod (2-3) close to the push rod gear motor (2-4); the push rod gear motor (2-4) cooperates with the toothed track; the push rod gear motor (2-4) is electrically connected to a control assembly, and the control assembly is a PLC control unit.

7. A method for using the automatic cutting and sampling device for raw soil sample preparation box according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: The control component controls the clamping component (2) to clamp the sample preparation box (6), and then the control component controls the gear motor (7) to start, and the clamping component (2) is driven by the gear motor (7) to move along the toothed track of the transport guide rail (3) toward the fixed position of the push rod component (1) and the sampling component (4); Step 2: When the clamping assembly (2) reaches the fixed position of the push rod assembly (1) and the sampling assembly (4), the clamping assembly (2) stops, so that the center of the push rod assembly (1) and the sampling assembly (4) is in the same straight line with the axial center of the sample preparation box (6); Step 3: The control component controls the push rod component (1) to push out the soil sample in the sample preparation box (6), and then the control component controls the sampling component (4) to sample the pushed out soil sample; Step 4: The control component controls the cutting component (5) to cut and separate the soil sample sampled by the sampling component (4) from the remaining soil sample in the sample preparation box (6).

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