An automatic all-in-one machine for soil sample compaction and demoulding for direct measurement of water content

Abstract

The present invention discloses an automatic all-in-one soil sample compaction and demolding machine for directly measuring water content, comprising a support seat, a compaction instrument, a compaction cylinder, a manipulator, a soil adding device, a weighing device, a water content measuring device and a signal acquisition and control device, wherein the compaction instrument, the compaction cylinder, the manipulator, the soil adding device, the weighing device, the water content measuring device and the signal acquisition and control device are all integrated in the cavity of the support seat, the compaction instrument is assembled on the top of the back plate of the support seat, the compaction cylinder is correspondingly assembled on the lower part of the compaction instrument, a synchronous belt slide rail is arranged on the inner side wall of the back plate of the support seat, the manipulator is assembled on the synchronous belt slide rail and can move on the synchronous belt slide rail, and the beneficial effects are as follows: no manual operation is required throughout the process, soil sample compaction can be achieved, the hammer head is automatically cleaned during the compaction process, demolding is automatically performed after compaction, demolding is automatically performed after demolding, and water content is automatically measured after weighing, the overall device has a high degree of automation, and the error of manual operation is reduced.

Description

Technical Field

[0001] The invention relates to an automatic integrated soil sample compaction and demoulding machine, in particular to an automatic integrated soil sample compaction and demoulding machine which can directly measure the water content. Background Art

[0002] At present, the weight and moisture content of disturbed soil are measured by compaction, and the maximum dry density corresponding to the optimal moisture content is finally calculated, which has guiding significance for the adjustment of the physical properties of fill soil at the construction site.

[0003] The existing compaction and demoulding of disturbed soil are separate. After the soil is mixed with water, soil is added to the compaction cylinder of the compaction instrument for compaction. After five times, the treated compaction cylinder is placed on the demoulding instrument for demoulding, and then weighed. After weighing, small soil blocks are placed in an aluminum box for drying and the moisture content is measured. The above-mentioned entire test process is cumbersome, time-consuming and labor-intensive, with many steps, especially at the construction site, where timely data support cannot be obtained. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of existing soil compaction instruments in use, such as cumbersome operation, time-consuming and labor-intensive, multiple process steps, and failure to obtain timely data support at the construction site, and to provide an automatic all-in-one soil compaction and demoulding machine for directly measuring the moisture content.

[0005] The automatic soil sample compaction and demolding machine for directly measuring the moisture content provided by the present invention comprises a support seat, a compaction instrument, a compaction cylinder, a manipulator, a soil adding device, a weighing device, a moisture content measuring device and a signal acquisition and control device, wherein the compaction instrument, the compaction cylinder, the manipulator, the soil adding device, the weighing device, the moisture content measuring device and the signal acquisition and control device are all integrated in the cavity of the support seat, the compaction instrument is assembled on the top of the back plate of the support seat, the compaction cylinder is correspondingly assembled on the lower part of the compaction instrument, a synchronous belt slide rail is arranged on the inner side wall of the back plate of the support seat, the manipulator is assembled on the synchronous belt slide rail and can move on the synchronous belt slide rail, and the manipulator can move the protruding part of the top of the compaction cylinder during the movement of the manipulator The soil sample is taken away and transported to the designated location, the soil adding device is arranged on one side of the compaction cylinder, the discharge port of the soil adding device is arranged corresponding to the upper port of the compaction cylinder, the soil sample in the soil adding device can be sent into the compaction cylinder through the discharge port, the moisture content measuring device is assembled on the inner wall of the end plate on one side of the support seat, the moisture content measuring device and the compaction cylinder are arranged opposite to each other, the weighing device is arranged between the compaction cylinder and the moisture content measuring device, the compaction instrument, the compaction cylinder, the manipulator, the soil adding device, the weighing device and the moisture content measuring device are all connected with the signal acquisition and control device, and the signal acquisition and control device controls the operation of the compaction instrument, the compaction cylinder, the manipulator, the soil adding device and the moisture content measuring device according to the collected data signal.

[0006] A brush is arranged at the bottom of the compactor against the hammer head, and the soil sample remaining on the hammer head can be cleaned by the brush.

[0007] A first gear is sleeved on the compaction cylinder, and the first gear is meshed with the second gear on the output shaft of the first motor. The first motor drives the second gear to rotate the compaction cylinder through the first gear. The first motor is connected to the signal acquisition and control device, and the signal acquisition and control device controls the first motor and the compaction instrument to run synchronously. A movable plate is arranged in the inner cavity of the compaction cylinder, and the movable plate is assembled on the top of the first hydraulic rod. The movable plate can move up and down in the inner cavity of the compaction cylinder under the action of the first hydraulic rod. A first displacement sensor is arranged on the first hydraulic rod, and the first displacement sensor is connected to the signal acquisition and control device. The signal acquisition and control device controls the operation of the first hydraulic rod through the transmission data of the first displacement sensor.

[0008] The synchronous belt slide is connected to a second motor, and the second motor drives the synchronous belt slide to drive the manipulator to move along the synchronous belt slide. The manipulator is a semi-cylindrical structure, and a scraper is provided on the bottom plate of the manipulator. A rotating motor is connected to the side wall of the manipulator, and the rotating motor can drive the manipulator to rotate. During the movement of the manipulator, the soil sample protruding from the top of the compaction cylinder can be brought into the weighing device through the cutting of the scraper, and the soil sample can be rotated and flipped to be placed on the weighing device. The second motor and the rotating motor are both connected to the signal acquisition and control device and controlled by the signal acquisition and control device.

[0009] A soil adding trough is arranged on the top of the soil adding device, and a weight scale is arranged on the bottom of the soil adding trough. The weight scale is connected to the signal acquisition and control device, and the weight scale can transmit the weight data of the soil sample in the soil adding trough to the signal acquisition and control device in real time. A discharge port is opened on the side wall of the soil adding trough corresponding to the upper port of the compaction cylinder, and a retaining plate is arranged at the discharge port. A rack is mounted on the retaining plate, and the rack is meshed with the third gear. The third gear is connected to the third motor. The third motor drives the retaining plate to move up and down through the third gear and the rack. The third motor is connected to the signal acquisition and control device and is controlled by the signal acquisition and control device.

[0010] The water content measuring device includes a baffle, a probe and a second hydraulic rod, wherein the baffle is fixed on the inner wall of the side plate of the support seat through two upper and lower support rods, the baffle is arranged corresponding to the weighing device, a through hole is arranged on the baffle, and the probe can penetrate through the through hole on the baffle into the soil sample on the weighing device, the probe is connected to the second hydraulic rod, and the probe moves back and forth under the control of the second hydraulic rod, the second hydraulic rod is fixed on the inner wall of the side plate of the support seat between the two support rods, and the second hydraulic rod is equipped with a second displacement sensor, the probe, the second hydraulic rod and the second displacement sensor are all connected to the signal acquisition and control device, the probe and the second displacement sensor can transmit the collected data to the signal acquisition and control device in real time, and the signal acquisition and control device controls the operation of the second hydraulic rod according to the collected data.

[0011] A conveyor belt is arranged at the lower part of the baffle, and the soil sample scraped off by the probe through the through hole of the baffle will fall onto the conveyor belt. The conveyor belt is connected to a fourth motor, which drives the conveyor belt to run. The fourth motor is connected to the signal acquisition and control device and is controlled by the signal acquisition and control device.

[0012] The signal acquisition and control device includes a power supply module, a signal acquisition module, a host computer, a compaction instrument controller, a first motor controller, a first hydraulic rod controller, a second motor controller, a rotating motor controller, a third motor controller, a second hydraulic rod controller, a fourth motor controller and an encoder, wherein the power supply module is connected with the signal acquisition module, the host computer, the compaction instrument controller, the first motor controller, the first hydraulic rod controller, the second motor controller, the rotating motor controller, the third motor controller, the second hydraulic rod controller, the fourth motor controller and the encoder, the power supply module provides power for the entire device, the signal acquisition module is connected with the host computer, the signal acquisition module can transmit the collected data to the host computer in real time, and the host computer is respectively connected with the compaction instrument controller, the first motor controller, the first hydraulic rod controller, the second motor controller, the rotating motor controller, the third motor controller, the second hydraulic rod controller, the fourth motor controller and the encoder. The motor controller, the third motor controller, the second hydraulic rod controller and the fourth motor controller are connected and control the operation of the compaction instrument controller, the first motor controller, the first hydraulic rod controller, the second motor controller, the rotating motor controller, the third motor controller, the second hydraulic rod controller and the fourth motor controller. The encoders are respectively embedded in the first motor, the second motor, the rotating motor, the third motor and the fourth motor. The encoders are connected to the signal acquisition module. The encoder can transmit the collected data to the signal acquisition module in real time. The signal acquisition module is also respectively connected to the compaction instrument, the first displacement sensor, the weight scale in the soil adding trough, the weighing device, the probe and the second displacement sensor. The signal acquisition module can collect the transmission data of the compaction instrument, the first displacement sensor, the weight scale in the soil adding trough, the weighing device, the probe and the second displacement sensor in real time.

[0013] The compactor controller is connected to the compactor and controls the operation of the compactor, the first motor controller is connected to the first motor and controls the operation of the first motor, the first hydraulic rod controller is connected to the first hydraulic rod and controls the operation of the first hydraulic rod, the second motor controller is connected to the second motor and controls the operation of the second motor, the rotating motor controller is connected to the rotating motor and controls the operation of the rotating motor, the third motor controller is connected to the third motor and controls the operation of the third motor, the second hydraulic rod controller is connected to the second hydraulic rod and controls the operation of the second hydraulic rod, and the fourth motor controller is connected to the fourth motor and controls the operation of the fourth motor.

[0014] The above-mentioned compaction instrument, first motor, first hydraulic rod, second motor, rotating motor, third motor, second hydraulic rod, fourth motor, first displacement sensor, weight scale, weighing device, probe, second displacement sensor, power supply module, signal acquisition module, host computer, compaction instrument controller, first motor controller, first hydraulic rod controller, second motor controller, rotating motor controller, third motor controller, second hydraulic rod controller, fourth motor controller and encoder are all assemblies of existing equipment, so the specific models and specifications are not repeated.

[0015] Working principle of the present invention:

[0016] When the automatic soil sample compaction and demoulding integrated machine for directly measuring the moisture content provided by the present invention is used, soil prepared with water is first added to the soil adding trough on the top of the soil adding device, and then the power module is turned on to power the whole system, and the motion position parameters of each part are set in the upper computer.

[0017] First, the host computer sends a signal to the third motor controller to drive the third motor to rotate, thereby driving the retaining plate on the soil adding trough to move downward. Since the soil adding trough is designed with an inclined angle, the soil in the soil adding trough will enter the compaction cylinder along the discharge port under the action of gravity. During the whole process, the movement information of the third motor is collected by the encoder and uploaded to the signal acquisition module in real time and then uploaded to the host computer. The host computer can calculate the downward distance of the retaining plate. When the set downward distance is reached, the host computer sends a signal to the third motor controller to drive the third motor to stop rotating, and the weight scale in the soil adding trough It communicates with the signal acquisition module in real time. The weight of the soil adding trough is collected by the signal acquisition module in real time and uploaded to the host computer. After calculation by the host computer, when the amount of added soil reaches the set value, the host computer sends a signal to the third motor controller. The third motor controller drives the third motor to reverse and drive the retaining plate upward. The signal acquisition module collects the movement information of the third motor and uploads it to the host computer. After calculation by the host computer, when the set amount of the retaining plate upward is reached, the host computer sends a signal to the third motor controller. The third motor controller controls the third motor to stop rotating and stop adding soil, and the soil adding is completed at one time.

[0018] After adding the set amount of soil sample into the compaction cylinder, the host computer sends a command to the compaction instrument controller and the first motor controller to drive the compaction instrument to start compaction and the compaction cylinder to start rotating synchronously. A brush is provided near the hammer head at the bottom of the compaction instrument. The bristles of the brush interfere with the hammer head, which can realize the self-cleaning of the hammer head during each compaction. The compaction hammer moves up and down for compaction, and the compaction cylinder also rotates synchronously, ensuring the uniformity of the compaction of the soil sample. The compaction times of the compaction instrument are collected by the signal acquisition module and uploaded to the host computer. When the set compaction times are reached, the host computer sends a command to the compaction instrument controller to control the compaction instrument to stop working, and the compaction is completed once. At the same time, the host computer sends a signal to the third motor controller to add soil again and compact. This process is repeated until the requirements in the compaction specification are met, and the compaction is completed. The compaction instrument and the compaction cylinder run synchronously, both controlled by the host computer. After compaction is completed, the host computer sends a signal to the first hydraulic rod controller to control the first hydraulic rod to move upward to lift the moving plate at the bottom of the compaction cylinder. The first displacement sensor obtains the movement displacement of the first hydraulic rod and uploads it to the signal acquisition module. The signal acquisition module uploads the obtained displacement data to the host computer. When the upward stroke of the first hydraulic rod reaches the set value for scraping loose soil, the host computer sends a signal to the first hydraulic rod controller to control the first hydraulic rod to stop working. At the same time, the host computer sends a signal to the second motor controller to control the second motor to drive the synchronous belt slide to drive the manipulator to move in the direction of the compaction cylinder to scrape off the loose soil. The movement information of the second motor is collected by the encoder and transmitted to the signal acquisition module and uploaded to the host computer. The host computer calculates the distance moved by the manipulator. When the set value is reached, the host computer sends a signal to the second motor controller to control the second motor to reverse and drive the manipulator to quickly return to the initial position. At this time, the host computer sends a signal to the first hydraulic rod controller to control the first hydraulic rod to continue to move upward to eject the prepared soil sample. When the soil sample is completely ejected, the host computer will receive the signal from the first displacement sensor. When the displacement collected by the sensor reaches the set value, the host computer sends a signal to the first hydraulic rod controller to control the first hydraulic rod to stop working. At the same time, the host computer sends a signal to the second motor controller to control the second motor to work. The second motor drives the synchronous belt slide to drive the manipulator to move in the direction of the weighing device. When the manipulator moves to the top of the weighing device, the host computer sends a signal to the second motor controller to control the second motor to stop working. At this time, the host computer sends a signal to the rotating motor controller to control the rotating motor to drive the manipulator to rotate. When the manipulator rotates 90°, the soil sample falls into the weighing device. The bottom surface of the weighing device is designed with a groove. When the soil sample falls on the weighing device, the soil sample will be limited to prevent it from falling. Then the host computer sends a signal to the rotating motor controller to control the rotating motor to stop working. After a pause of 2s, the host computer sends a signal to the rotating motor controller to control the rotating motor to stop rotating in the opposite direction and returning to the initial position. At this time, the host computer sends a signal to the second motor controller to control the second motor to work, driving the manipulator on the synchronous belt slide to return and return to the initial position.

[0019] The weighing device weighs the soil sample, and the weight of the soil sample is collected by the signal acquisition module and uploaded to the host computer. After the weighing is completed, the host computer sends a signal to the second hydraulic rod controller to control the second hydraulic rod to move toward the weighing device against the probe in the water content measuring device. The second displacement sensor collects the movement information of the second hydraulic rod to the signal acquisition module and uploads it to the host computer. When the displacement collected by the second displacement sensor reaches the set value, the host computer sends a signal to the second hydraulic rod controller to control the second hydraulic rod to stop moving. At this time, the probe in the water content measuring device has entered the predetermined position of the soil sample to measure the water content. The water content of the soil sample is collected by the signal acquisition module and uploaded to the host computer. After the measurement is completed, the host computer sends a signal to the second hydraulic rod controller to control the return of the second hydraulic rod. When the probe passes through the through hole on the baffle, the baffle will scrape off the soil residue on the probe and drop it on the conveyor belt. The second hydraulic rod stops moving when it returns to the initial position. At this time, the host computer sends a signal to the fourth motor controller to control the movement of the fourth motor to transport the waste soil sample on the conveyor belt away from the overall device. After the compaction and demoulding measurement of a soil sample is completed, the host computer stores the data for subsequent analysis.

[0020] Beneficial effects of the present invention:

[0021] The automatic integrated soil sample compaction and demoulding machine for directly measuring the moisture content provided by the present invention does not require manual operation throughout the process, can realize soil sample compaction, automatically clean the hammer head during the compaction process, automatically demould after compaction, automatically weigh after demoulding, and automatically measure the moisture content after weighing. The overall device has a high degree of automation, reducing errors in manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the automatic integrated soil sample compaction and demoulding machine described in the present invention.

[0023] Figure 2 This is the front view of the automatic integrated soil sample compaction and demoulding machine of the present invention without the soil adding device.

[0024] Figure 3 It is a schematic diagram of the compaction cylinder structure of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the robot described in the present invention.

[0026] Figure 5 The figure is a schematic diagram of the internal structure of the soil adding device described in the present invention.

[0027] Figure 6 This is a structural block diagram of the signal acquisition and control device described in the present invention.

[0028] The annotations in the above figure are as follows:

[0029] 1. Support seat 2. Compactor 3. Compactor 4. Manipulator 5. Soil adding device 6. Weighing device 7. Water content measuring device 8. Signal acquisition and control device 9. Synchronous belt slide rail 10. Discharge port 11. Brush 12. First gear 13. First motor 14. Second gear 15. Moving plate 16. First hydraulic rod 17. First displacement sensor 18. Second motor 19. Scraper 20. Rotating motor 21. Soil adding trough 22. Weight scale 23. Retaining plate 24. Rack 25. Third gear 26. Third motor 27. Baffle 28. Probe 29. Second hydraulic rod 30. Second displacement sensor 31. Conveyor belt 32. Fourth motor 33. Power module 34. Signal acquisition module 35. Host computer 36. Compactor controller 37. First motor controller 38. First hydraulic rod controller 39. Second motor controller 40. Rotating motor controller 41. Third motor controller 42. Second hydraulic rod controller 43. Fourth motor controller 44. Encoder. DETAILED DESCRIPTION

[0030] See also Figures 1 to 6 As shown:

[0031] The soil sample compaction and demolding automatic integrated machine for directly measuring the moisture content provided by the present invention comprises a support seat 1, a compaction instrument 2, a compaction cylinder 3, a manipulator 4, a soil adding device 5, a weighing device 6, a moisture content measuring device 7 and a signal acquisition and control device 8, wherein the compaction instrument 2, the compaction cylinder 3, the manipulator 4, the soil adding device 5, the weighing device 6, the moisture content measuring device 7 and the signal acquisition and control device 8 are all integrated in the cavity of the support seat 1, the compaction instrument 2 is assembled on the top of the back plate of the support seat 1, the compaction cylinder 3 is correspondingly assembled on the lower part of the compaction instrument 2, a synchronous belt slide rail 9 is arranged on the inner side wall of the back plate of the support seat 1, the manipulator 4 is assembled on the synchronous belt slide rail 9 and can move on the synchronous belt slide rail 9, and the manipulator 4 can push the soil protruding from the top of the compaction cylinder 3 during the movement. The sample is taken away and transported to the designated position, the soil adding device 5 is arranged on one side of the compaction cylinder 3, the discharge port 10 of the soil adding device 5 is arranged corresponding to the upper port of the compaction cylinder 3, the soil sample in the soil adding device 5 can be sent into the compaction cylinder 3 through the discharge port 10, the moisture content measuring device 7 is assembled on the inner wall of the end plate on one side of the support seat 1, the moisture content measuring device 7 is arranged opposite to the compaction cylinder 3, the weighing device 6 is arranged between the compaction cylinder 3 and the moisture content measuring device 7, the compaction instrument 2, the compaction cylinder 3, the manipulator 4, the soil adding device 5, the weighing device 6 and the moisture content measuring device 7 are all connected with the signal acquisition and control device 8, and the signal acquisition and control device 8 controls the operation of the compaction instrument 2, the compaction cylinder 3, the manipulator 4, the soil adding device 5 and the moisture content measuring device 7 according to the collected data signal.

[0032] A brush 11 is provided at the bottom of the compactor 2 against the hammer head, and the brush 11 can be used to clean the soil sample remaining on the hammer head.

[0033] A first gear 12 is sleeved on the compaction cylinder 3, and the first gear 12 is meshed with a second gear 14 on the output shaft of the first motor 13. The first motor 13 drives the second gear 14 to rotate the compaction cylinder 3 through the first gear 12. The first motor 13 is connected to the signal acquisition and control device 8, and the signal acquisition and control device 8 controls the first motor 13 and the compaction instrument 2 to run synchronously. A movable plate 15 is arranged in the inner cavity of the compaction cylinder 3, and the movable plate 15 is assembled on the top of the first hydraulic rod 16. The movable plate 15 can move up and down in the inner cavity of the compaction cylinder 3 under the action of the first hydraulic rod 16. A first displacement sensor 17 is arranged on the first hydraulic rod 16, and the first displacement sensor 17 is connected to the signal acquisition and control device 8. The signal acquisition and control device 8 controls the operation of the first hydraulic rod 16 through the transmission data of the first displacement sensor 17.

[0034] The synchronous belt slide 9 is connected to a second motor 18, and the second motor 18 drives the synchronous belt slide 9 to drive the manipulator 4 to move along the synchronous belt slide 9. The manipulator 4 is a semi-cylindrical structure, and a scraper 19 is provided on the bottom plate of the manipulator 4. A rotating motor 20 is connected to the side wall of the manipulator 4, and the rotating motor 20 can drive the manipulator 4 to rotate. During the movement, the manipulator 4 can bring the soil sample protruding from the top of the compaction cylinder 3 into the weighing device 6 through the cutting of the scraper 19 and rotate and flip it to put the soil sample onto the weighing device 6. The second motor 18 and the rotating motor 20 are both connected to the signal acquisition and control device 8 and controlled by the signal acquisition and control device 8.

[0035] A soil adding trough 21 is arranged on the top of the soil adding device 5, and a weight scale 22 is arranged on the bottom of the soil adding trough 21. The weight scale 22 is connected to the signal acquisition and control device 8. The weight scale 22 can transmit the soil sample weight data in the soil adding trough 21 to the signal acquisition and control device 8 in real time. A discharge port 10 is opened on the side wall of the upper port of the soil adding trough 21 corresponding to the compaction cylinder 3, and a retaining plate 23 is arranged at the discharge port 10. A rack 24 is assembled on the retaining plate 23, and the rack 24 is meshed with the third gear 25. The third gear 25 is connected to the third motor 26. The third motor 26 drives the retaining plate 23 to move up and down through the third gear 25 and the rack 24. The third motor 26 is connected to the signal acquisition and control device 8 and is controlled by the signal acquisition and control device 8.

[0036] The moisture content measuring device 7 includes a baffle 27, a probe 28 and a second hydraulic rod 29, wherein the baffle 27 is fixed to the inner wall of the side plate of the support seat 1 through two upper and lower support rods, the baffle pair 27 is set to the weighing device 6, the baffle 27 is provided with a through hole, the probe 28 can penetrate through the through hole on the baffle 27 into the soil sample on the weighing device 6, the probe 28 is connected to the second hydraulic rod 29, the probe 27 moves back and forth under the control of the second hydraulic rod 29, the second hydraulic rod 29 is fixed on the inner wall of the side plate of the support seat 1 between the two support rods, the second hydraulic rod 29 is equipped with a second displacement sensor 30, the probe 28, the second hydraulic rod 29 and the second displacement sensor 30 are all connected to the signal acquisition and control device 8, the probe 28 and the second displacement sensor 30 can transmit the collected data to the signal acquisition and control device 8 in real time, and the signal acquisition and control device 8 controls the operation of the second hydraulic rod 29 according to the collected data.

[0037] A conveyor belt 31 is provided at the lower part of the baffle 27. The soil sample scraped off by the probe 28 through the through hole of the baffle 27 will fall onto the conveyor belt 31. The conveyor belt 31 is connected to a fourth motor 32. The fourth motor 32 drives the conveyor belt 31 to run. The fourth motor 32 is connected to the signal acquisition and control device 8 and is controlled by the signal acquisition and control device 8.

[0038] The signal acquisition and control device 8 includes a power supply module 33, a signal acquisition module 34, a host computer 35, a compaction instrument controller 36, a first motor controller 37, a first hydraulic rod controller 38, a second motor controller 39, a rotating motor controller 40, a third motor controller 41, a second hydraulic rod controller 42, a fourth motor controller 43 and an encoder 44, wherein the power supply module 33 is connected to the signal acquisition module 34, the host computer 35, the compaction instrument controller 36, the first motor controller 37, the first hydraulic rod controller 38, the second motor controller 39, the rotating motor controller 40, the third motor controller 41, the second hydraulic rod controller 42, the fourth motor controller 43 and the encoder 44, the power supply module 33 provides power for the entire device, the signal acquisition module 34 is connected to the host computer 35, the signal acquisition module 34 can transmit the collected data to the host computer 35 in real time, and the host computer 35 is respectively connected to the compaction instrument controller 36, the first motor controller 37, the first hydraulic rod controller 38, the second motor controller 39, the rotating motor controller 40, the third motor controller 41, the second hydraulic rod controller 42, the fourth motor controller 43 and the encoder 44 The controller 40, the third motor controller 41, the second hydraulic rod controller 42 and the fourth motor controller 43 are connected and control the operation of the compaction instrument controller 36, the first motor controller 37, the first hydraulic rod controller 38, the second motor controller 39, the rotating motor controller 40, the third motor controller 41, the second hydraulic rod controller 42 and the fourth motor controller 43. The encoder 44 is respectively embedded in the first motor 13, the second motor 18, the rotating motor 20, the third motor 26 and the fourth motor 32. The encoder 44 is connected to the signal acquisition module 34. The encoder 44 can transmit the collected data to the signal acquisition module 34 in real time. The signal acquisition module 34 is also respectively connected to the compaction instrument 2, the first displacement sensor 17, the weight scale 22 in the soil feeding trough 21, the weighing device 6, the probe 28 and the second displacement sensor 30. The signal acquisition module 34 can collect the transmission data of the compaction instrument 2, the first displacement sensor 17, the weight scale 22 in the soil feeding trough 21, the weighing device 6, the probe 28 and the second displacement sensor 30 in real time.

[0039] The compactor controller 36 is connected to the compactor 2 and controls the operation of the compactor 2, the first motor controller 37 is connected to the first motor 13 and controls the operation of the first motor 13, the first hydraulic rod controller 38 is connected to the first hydraulic rod 16 and controls the operation of the first hydraulic rod 16, the second motor controller 39 is connected to the second motor 18 and controls the operation of the second motor 18, the rotating motor controller 40 is connected to the rotating motor 20 and controls the operation of the rotating motor 20, the third motor controller 41 is connected to the third motor 26 and controls the operation of the third motor 26, the second hydraulic rod controller 42 is connected to the second hydraulic rod 29 and controls the operation of the second hydraulic rod 29, and the fourth motor controller 43 is connected to the fourth motor 32 and controls the operation of the fourth motor 32.

[0040] The above-mentioned compaction instrument 2, first motor 13, first hydraulic rod 16, second motor 18, rotating motor 20, third motor 26, second hydraulic rod 29, fourth motor 32, first displacement sensor 17, weight scale 22, weighing device 6, probe 28, second displacement sensor 30, power supply module 33, signal acquisition module 34, host computer 35, compaction instrument controller 36, first motor controller 37, first hydraulic rod controller 38, second motor controller 39, rotating motor controller 40, third motor controller 41, second hydraulic rod controller 42, fourth motor controller 43 and encoder 44 are all assemblies of existing equipment, so the specific models and specifications are not repeated.

[0041] Working principle of the present invention:

[0042] When in use, the automatic soil sample compaction and demoulding machine for directly measuring the moisture content provided by the present invention first adds soil prepared with water into the soil adding trough 21 at the top of the soil adding device 5, then turns on the power module 33, powers on the entire system, and sets the movement position parameters of each part in the host computer 35.

[0043] First, the host computer 35 sends a signal to the third motor controller 41 to drive the third motor 26 to rotate, thereby driving the retaining plate 23 on the soil adding trough 21 to move downward. Since the soil adding trough 21 is designed with an inclined angle, the soil in the soil adding trough 21 will enter the compaction cylinder 3 along the discharge port 10 under the action of gravity. During the whole process, the movement information of the third motor 26 is collected by the encoder 44, and uploaded to the signal acquisition module 34 in real time and then uploaded to the host computer 35. The host computer 35 can calculate the downward distance of the retaining plate 23. When the set downward distance is reached, the host computer 35 sends a signal to the third motor controller 41 to drive the third motor 26 to stop rotating, and the weight scale 22 in the soil adding trough 21 Communicate with the signal acquisition module 34 in real time, the weight of the soil adding trough 21 is collected by the signal acquisition module 34 in real time and uploaded to the host computer 35. After calculation by the host computer 35, when the amount of added soil reaches the set value, the host computer 35 sends a signal to the third motor controller 41, and the third motor controller 41 drives the third motor 26 to reverse and drive the retaining plate 23 upward. The signal acquisition module 34 collects the movement information of the third motor 26 and uploads it to the host computer 35. After calculation by the host computer 35, when the set amount of upward movement of the retaining plate 23 is reached, the host computer 35 sends a signal to the third motor controller 41, and the third motor controller 41 controls the third motor 26 to stop rotating and stop adding soil, and the soil adding is completed once.

[0044] After the set amount of soil sample is added to the compaction tube 3, the host computer 35 sends an instruction to the compaction instrument controller 36 and the first motor controller 37 to drive the compaction instrument 2 to start compaction and the compaction tube 3 to start synchronous rotation. A brush 11 is arranged near the hammer head at the bottom of the compaction instrument 2. The hair of the brush 11 interferes with the hammer head, which can realize the self-cleaning of the hammer head during each compaction. The compaction hammer moves up and down to compact, and the compaction tube 3 also rotates synchronously, ensuring the uniformity of the compaction of the soil sample. The compaction times of the compaction instrument 2 are collected by the signal acquisition module 34 and uploaded to the host computer 35. When the set compaction times are reached, the host computer 35 sends an instruction to the compaction instrument controller 36 to control the compaction instrument 2 to stop working, and the compaction is completed once. At the same time, the host computer 35 sends a signal to the third motor controller 41 to add soil again and compact, and this process is repeated until the requirements in the compaction specification are met, and the compaction is completed. The compaction instrument 2 and the compaction tube 3 run synchronously, both controlled by the host computer 35.After compaction is completed, the host computer 35 sends a signal to the first hydraulic rod controller 38 to control the first hydraulic rod 16 to move upward to lift the movable plate 15 at the bottom of the compaction cylinder 3. The first displacement sensor 17 obtains the movement displacement of the first hydraulic rod 16 and uploads it to the signal acquisition module 34. The signal acquisition module 34 uploads the obtained displacement data to the host computer 35. When the upward stroke of the first hydraulic rod 16 reaches the scraping loose soil setting value, the host computer 35 sends a signal to the first hydraulic rod controller 38 to control the first hydraulic rod 16 to stop working. At the same time, the host computer 35 sends a signal to the second motor controller 39 to control the second motor 18 to drive the same The step-belt slide rail 9 drives the manipulator 4 to move in the direction of the compaction cylinder 3 to scrape off the loose soil. The motion information of the second motor 18 is collected by the encoder 44 and transmitted to the signal acquisition module 34 and uploaded to the host computer 35. The host computer 35 calculates the movement distance of the manipulator 4. When the set value is reached, the host computer 35 sends a signal to the second motor controller 39 to control the second motor 18 to reverse and drive the manipulator 4 to quickly return to the initial position. At this time, the host computer 35 sends a signal to the first hydraulic rod controller 38 to control the first hydraulic rod 16 to continue to move upward to eject the prepared soil sample. When the soil sample is completely ejected, the host computer 35 will receive the first When the displacement collected by the displacement sensor 17 reaches the set value, the host computer 35 sends a signal to the first hydraulic rod controller 38 to control the first hydraulic rod 16 to stop working. At the same time, the host computer 35 sends a signal to the second motor controller 39 to control the second motor 18 to work. The second motor 18 drives the synchronous belt slide 9 to drive the manipulator 4 to move in the direction of the weighing device 6. When the manipulator 4 moves to the top of the weighing device 6, the host computer 35 sends a signal to the second motor controller 39 to control the second motor 18 to stop working. At this time, the host computer 35 sends a signal to the rotation motor controller 40 to control the rotation motor 20 to drive the manipulator 4 to rotate. When the manipulator 4 rotates 90°, the soil sample falls into the weighing device 6. The bottom surface of the weighing device 6 is designed with a groove. When the soil sample falls on the weighing device 6, the soil sample will be limited to prevent it from falling. Then the upper computer 35 sends a signal to the rotating motor controller 40 to control the rotating motor 20 to stop working. After a pause of 2s, the upper computer 35 sends a signal to the rotating motor controller 40 to control the rotating motor 20 to rotate in the opposite direction and stop moving when returning to the initial position. At this time, the upper computer 35 sends a signal to the second motor controller 39 to control the second motor 18 to work, driving the manipulator 4 on the synchronous belt slide rail 9 to return to the initial position.

[0045] The weighing device 6 weighs the soil sample, and the weight of the soil sample is collected by the signal acquisition module 34 and uploaded to the host computer 35. After the weighing is completed, the host computer 35 sends a signal to the second hydraulic rod controller 42 to control the second hydraulic rod 29 to move toward the weighing device 6 against the probe 28 in the water content measuring device 7. The second displacement sensor 30 collects the movement information of the second hydraulic rod 29 to the signal acquisition module 34 and uploads it to the host computer 35. When the displacement collected by the second displacement sensor 30 reaches the set value, the host computer 35 sends a signal to the second hydraulic rod controller 42 to control the second hydraulic rod 29 to stop moving. At this time, the probe 28 in the water content measuring device 7 has entered the predetermined position of the soil sample. The moisture content of the soil sample is measured at the position. The moisture content of the soil sample is collected by the signal acquisition module 34 and uploaded to the host computer 35. After the measurement is completed, the host computer 35 sends a signal to the second hydraulic rod controller 42 to control the return of the second hydraulic rod 29. When the probe 28 passes through the through hole on the baffle 27, the baffle 27 will scrape off the soil residue on the probe 28 and drop it on the conveyor belt 31. The second hydraulic rod 29 stops moving when it returns to the initial position. At this time, the host computer 35 sends a signal to the fourth motor controller 43 to control the movement of the fourth motor 32 to transport the waste soil sample on the conveyor belt 31 away from the overall device. After the compaction and demoulding measurement of a soil sample is completed, the host computer 35 stores the data for subsequent analysis.

Claims

1. An automatic integrated soil sample compaction and demoulding machine for directly measuring water content, comprising a support seat, a compaction instrument, a compaction cylinder, a manipulator, a soil adding device, a weighing device, a water content measuring device and a signal acquisition and control device, wherein the compaction instrument, the compaction cylinder, the manipulator, the soil adding device, the weighing device, the water content measuring device and the signal acquisition and control device are all integrated in the cavity of the support seat, the compaction instrument is assembled on the top of the back plate of the support seat, the compaction cylinder is correspondingly assembled on the lower part of the compaction instrument, a synchronous belt slide is arranged on the inner side wall of the back plate of the support seat, the manipulator is assembled on the synchronous belt slide and can move on the synchronous belt slide, and the soil sample protruding from the top of the compaction cylinder can be brought into contact with the soil sample during the movement of the manipulator The soil adding device is arranged on one side of the compaction cylinder, and the discharge port of the soil adding device is arranged corresponding to the upper port of the compaction cylinder. The soil sample in the soil adding device can be fed into the compaction cylinder through the discharge port. The moisture content measuring device is assembled on the inner wall of the end plate on one side of the support seat. The moisture content measuring device is arranged opposite to the compaction cylinder. The weighing device is arranged between the compaction cylinder and the moisture content measuring device. The compaction instrument, the compaction cylinder, the manipulator, the soil adding device, the weighing device and the moisture content measuring device are all connected to the signal acquisition and control device. The signal acquisition and control device controls the operation of the compaction instrument, the compaction cylinder, the manipulator, the soil adding device and the moisture content measuring device according to the collected data signal. The device is characterized in that: The compaction cylinder is sleeved with a first gear, the first gear is meshed with the second gear on the output shaft of the first motor, the first motor drives the second gear to drive the compaction cylinder to rotate through the first gear, the first motor is connected to the signal acquisition and control device, the signal acquisition and control device controls the first motor and the compaction instrument to run synchronously, a movable plate is arranged in the inner cavity of the compaction cylinder, the movable plate is assembled on the top of the first hydraulic rod, the movable plate can move up and down in the inner cavity of the compaction cylinder under the action of the first hydraulic rod, a first displacement sensor is arranged on the first hydraulic rod, the first displacement sensor is connected to the signal acquisition and control device, the signal acquisition and control device is connected through The transmission data of the first displacement sensor controls the operation of the first hydraulic rod; the synchronous belt slide is connected to the second motor, the second motor drives the synchronous belt slide to drive the manipulator to move along the synchronous belt slide, the manipulator is a semi-cylindrical structure, a scraper is provided on the bottom plate of the manipulator, a rotating motor is connected to the side wall of the manipulator, the rotating motor can drive the manipulator to rotate, during the movement of the manipulator, the soil sample protruding from the top of the compaction cylinder can be brought into the weighing device through the cutting of the scraper and the soil sample can be rotated and flipped to be placed on the weighing device, the second motor and the rotating motor are both connected to the signal acquisition and control device and controlled by the signal acquisition and control device.

2. The automatic integrated soil sample compaction and demoulding machine for directly measuring water content according to claim 1, characterized in that: The bottom of the compactor is provided with a brush at a position against the hammer head, and the soil sample remaining on the hammer head can be cleaned by the brush.

3. The automatic integrated soil sample compaction and demoulding machine for directly measuring the moisture content according to claim 1, characterized in that: A soil adding trough is arranged on the top of the soil adding device, and a weight scale is arranged on the bottom of the soil adding trough. The weight scale is connected to the signal acquisition and control device. The weight scale can transmit the weight data of the soil sample in the soil adding trough to the signal acquisition and control device in real time. A discharge port is opened on the side wall of the soil adding trough corresponding to the upper port of the compaction cylinder, and a retaining plate is arranged at the discharge port. A rack is mounted on the retaining plate, and the rack is meshed with the third gear. The third gear is connected to the third motor. The third motor drives the retaining plate to move up and down through the third gear and the rack. The third motor is connected to the signal acquisition and control device and is controlled by the signal acquisition and control device.

4. The automatic integrated soil sample compaction and demoulding machine for directly measuring water content according to claim 1, characterized in that: The moisture content measuring device includes a baffle, a probe and a second hydraulic rod, wherein the baffle is fixed to the inner wall of the side plate of the support seat through two upper and lower support rods, the baffle is arranged corresponding to the weighing device, a through hole is arranged on the baffle, the probe can penetrate through the through hole on the baffle into the soil sample on the weighing device, the probe is connected to the second hydraulic rod, the probe moves back and forth under the control of the second hydraulic rod, the second hydraulic rod is fixed on the inner wall of the side plate of the support seat between the two support rods, the second hydraulic rod is equipped with a second displacement sensor, the probe, the second hydraulic rod and the second displacement sensor are all connected to the signal acquisition and control device, the probe and the second displacement sensor can transmit the collected data to the signal acquisition and control device in real time, and the signal acquisition and control device controls the operation of the second hydraulic rod according to the collected data.

5. The automatic integrated soil sample compaction and demoulding machine for directly measuring water content according to claim 4, characterized in that: A conveyor belt is arranged at the lower part of the baffle, and the soil sample scraped off by the probe through the through hole of the baffle will fall onto the conveyor belt. The conveyor belt is connected to a fourth motor, which drives the conveyor belt to run. The fourth motor is connected to the signal acquisition and control device and is controlled by the signal acquisition and control device.

6. The automatic integrated soil sample compaction and demoulding machine for directly measuring water content according to claim 1, 3, 4 or 5, characterized in that: The signal acquisition and control device includes a power supply module, a signal acquisition module, a host computer, a compaction instrument controller, a first motor controller, a first hydraulic rod controller, a second motor controller, a rotating motor controller, a third motor controller, a second hydraulic rod controller, a fourth motor controller and an encoder, wherein the power supply module is connected to the signal acquisition module, the host computer, the compaction instrument controller, the first motor controller, the first hydraulic rod controller, the second motor controller, the rotating motor controller, the third motor controller, the second hydraulic rod controller, the fourth motor controller and the encoder, the power supply module provides power for the entire device, the signal acquisition module is connected to the host computer, the signal acquisition module can transmit the collected data to the host computer in real time, and the host computer is respectively connected to the compaction instrument controller, the first motor controller, the first hydraulic rod controller, the second motor controller, the rotating motor controller, the third motor controller, the second hydraulic rod controller, the fourth motor controller and the encoder. The driving motor controller, the third motor controller, the second hydraulic rod controller and the fourth motor controller are connected and control the operation of the compaction instrument controller, the first motor controller, the first hydraulic rod controller, the second motor controller, the rotating motor controller, the third motor controller, the second hydraulic rod controller and the fourth motor controller. The encoders are respectively embedded in the first motor, the second motor, the rotating motor, the third motor and the fourth motor. The encoders are connected to the signal acquisition module. The encoder can transmit the collected data to the signal acquisition module in real time. The signal acquisition module is also respectively connected to the compaction instrument, the first displacement sensor, the weight scale in the soil adding trough, the weighing device, the probe and the second displacement sensor. The signal acquisition module can collect the transmission data of the compaction instrument, the first displacement sensor, the weight scale in the soil adding trough, the weighing device, the probe and the second displacement sensor in real time.

7. The automatic integrated soil sample compaction and demoulding machine for directly measuring water content according to claim 6, characterized in that: The compactor controller is connected to the compactor and controls the operation of the compactor, the first motor controller is connected to the first motor and controls the operation of the first motor, the first hydraulic rod controller is connected to the first hydraulic rod and controls the operation of the first hydraulic rod, the second motor controller is connected to the second motor and controls the operation of the second motor, the rotating motor controller is connected to the rotating motor and controls the operation of the rotating motor, the third motor controller is connected to the third motor and controls the operation of the third motor, the second hydraulic rod controller is connected to the second hydraulic rod and controls the operation of the second hydraulic rod, and the fourth motor controller is connected to the fourth motor and controls the operation of the fourth motor.

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