Coal mine soil sample mechanical sampling equipment

Abstract

The invention relates to the technical field of soil sample collection, in particular to coal mine soil sample mechanical sampling equipment which comprises a driving mechanism. The device further comprises a sampling mechanism and a storage mechanism, and the sampling mechanism and the storage mechanism are both installed on the driving mechanism. The driving mechanism provides power for the sampling mechanism, the sampling mechanism samples soil, and the storage mechanism stores the collected soil sample; the driving mechanism is installed on the working vehicle, the sampling position is adjusted through the working vehicle, then the driving mechanism operates to provide power for the sampling mechanism, the sampling mechanism drills holes to collect soil samples, the collected soil samples are discharged into the storage mechanism to be stored, and therefore the practicability of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil sample collection, in particular to a coal mine soil sample mechanical sampling device. BACKGROUND

[0002] Coal mine soil sampling is generally performed by detecting carbon, hydrogen, sulfur and other coal characteristic elements and organic matter content, combined with remote sensing geological survey data, to indirectly infer the distribution range and coal quality characteristics of underground coal seams. In the sampling process, soil is sampled by a coal field geological exploration sampling device disclosed in the patent with publication number CN110726582B and a portable sampling device for coal mine exploration disclosed in the patent with publication number CN109596387B.

[0003] However, it is found in use that the existing sampling device has a relatively complex structure, is not convenient to combine with a working vehicle, and the collected soil is not convenient to store. In addition, during the sampling process, the soil at some positions is relatively loose, which causes the soil at the top of the hole to easily collapse, causing the mixing of deep soil and surface soil, affecting the judgment of the work personnel on the soil sample, and resulting in poor practicality. Therefore, there is an urgent need for a coal mine soil sample mechanical sampling device to improve the above problems. SUMMARY

[0004] To solve the above technical problems, the present application provides a coal mine soil sample mechanical sampling device, which installs a driving mechanism on a working vehicle, adjusts the sampling position through the working vehicle, then drives the sampling mechanism through the driving mechanism to provide power for the sampling mechanism, so that the sampling mechanism drills holes to collect soil samples, and the collected soil samples are discharged into the storage mechanism for storage, thereby improving the practicality of the device.

[0005] The coal mine soil sample mechanical sampling device of the present application comprises a driving mechanism, a sampling mechanism and a storage mechanism, and the sampling mechanism and the storage mechanism are installed on the driving mechanism. The driving mechanism provides power for the sampling mechanism, the sampling mechanism samples soil, and the storage mechanism stores the collected soil samples. The driving mechanism is installed on the working vehicle, the sampling position is adjusted through the working vehicle, then the driving mechanism drives the sampling mechanism to provide power, so that the sampling mechanism drills holes to collect soil samples, and the collected soil samples are discharged into the storage mechanism for storage, thereby improving the practicality of the device.

[0006] Preferably, the driving mechanism comprises a frame, a hydraulic cylinder one, a lifting platform, a driving motor one, a bevel gear one, a bevel gear two, a guide cylinder and a transmission mechanism, the lifting platform is installed on the frame through the hydraulic cylinder one, the driving motor one is installed on the lifting platform, the bevel gear one is installed on the output shaft of the driving motor one, the transmission mechanism is installed on the lifting platform, the bevel gear two is installed on the transmission mechanism, and the bevel gear two is in meshing connection with the bevel gear one, and the guide cylinder is installed on the frame and located below the transmission mechanism; the sampling mechanism moves upward or downward by stretching or shrinking of the hydraulic cylinder one, and the sampling mechanism operates by opening the driving motor one, meshing transmission of the bevel gear one and the bevel gear two, transmission of the transmission mechanism and then driving.

[0007] Preferably, the transmission mechanism comprises a rotating shaft, a polygonal shaft, a polygonal shaft sleeve and a spring, the rotating shaft is rotatably installed on the lifting platform, the polygonal shaft is installed at the bottom of the rotating shaft, the polygonal shaft sleeve is slidably installed on the polygonal shaft, one end of the spring is rotatably installed at the bottom of the lifting platform, and the other end of the spring is rotatably installed at the bottom of the polygonal shaft sleeve, and the bevel gear two is installed at the top of the rotating shaft; the sampling mechanism is connected with the polygonal shaft sleeve by pushing the polygonal shaft sleeve upward to make the spring contract.

[0008] Preferably, the sampling mechanism comprises a drill rod, a drill bit, a blocking mechanism, a limiting mechanism and an ejection mechanism, the drill rod is installed on the polygonal shaft sleeve, the drill bit is installed at the bottom of the drill rod and located in the guide cylinder, the blocking mechanism is installed on the drill rod, and the limiting mechanism and the ejection mechanism are both installed on the frame; the drill rod is driven to rotate by the operation of the driving motor one, so that the drill bit digs a hole at a specified position and transports the dug soil upward, while the hole wall is supported by the blocking mechanism to reduce the collapse of the hole wall, when the drill bit digs enough soil, the drill rod is extended, the lifting platform is lifted, the drill bit is lifted, and the soil is taken out of the hole, the ejected soil is discharged into the storage mechanism through the ejection mechanism, then the drill rod is fixed through the limiting mechanism, so as to separate the drill rod from the polygonal shaft sleeve and adjust the length of the drill rod.

[0009] Preferably, the blocking mechanism comprises an exhaust pump, a gas conveying pipe, a rotary connecting pipe, an electric control pressure relief valve, a plurality of support rings, a plurality of rotating rings and a plurality of air bags, the middle part of the drill pipe, the polygonal shaft, the rotating shaft and the bevel gear two are provided with gas conveying passages, and the gas conveying passages in the polygonal shaft, the rotating shaft and the bevel gear two are communicated, the exhaust pump is installed on the lifting platform, one end of the gas conveying pipe is installed on the exhaust port of the exhaust pump, the rotary connecting pipe is installed on the top of the rotating shaft, the electric control pressure relief valve is installed on the rotary connecting pipe, the plurality of support rings are installed on the drill pipe, the plurality of rotating rings are rotatably installed on the plurality of support rings, the plurality of air bags are respectively sleeved on the plurality of rotating rings, and the air bags are communicated with the support rings through the rotating rings, and the plurality of support rings are communicated with the gas conveying passages in the drill pipe; the exhaust pump is operated to make the air pass through the exhaust pump, the gas conveying pipe, the rotary connecting pipe, the rotating shaft, the polygonal shaft, the polygonal shaft sleeve, the drill pipe, the support ring and the rotating ring in sequence, so that the air enters the air bag, the air bag is expanded to support the hole wall, and during the rising of the drill pipe, the mixed soil of the falling soil and the excavated soil is reduced by the expanded air bag.

[0010] Preferably, the discharging mechanism comprises a plurality of transmission shafts, two conveying belts and two driving motors, the plurality of transmission shafts are rotatably installed on the rack, the two conveying belts are sleeved on the plurality of transmission shafts, and the two conveying belts are located above the guide cylinder, a plurality of soil discharging plates are arranged on the two conveying belts, and the two driving motors are fixedly installed on the rack and provide power for the two soil discharging plates; after the excavated soil is lifted to the top of the guide cylinder through the gas conveying passage, the two driving motors are turned on, the two conveying belts are driven through the plurality of transmission shafts, and the soil is pushed into the storage mechanism through the plurality of soil discharging plates.

[0011] Preferably, the limiting mechanism comprises two supports, two hydraulic cylinders and two clamping jaws, the two supports are installed on the rack, the two hydraulic cylinders are installed on the two supports, and the two clamping jaws are installed on one end of the two hydraulic cylinders; when the length of the drill pipe is adjusted, the two clamping jaws are tightened around the top of the drill pipe by the extension of the two hydraulic cylinders to limit the drill pipe.

[0012] Preferably, the drill pipe is composed of a plurality of connecting rods, the top of the plurality of connecting rods is provided with a threaded column, the bottom of the plurality of connecting rods is provided with a threaded hole, and the plurality of connecting rods are provided with polygonal supports; the drill pipe is composed of a plurality of connecting rods, which facilitates the adjustment of the length of the drill pipe by reducing or increasing the number of connecting rods, and the stability of the equipment is ensured by tightening the polygonal supports on the connecting rods with the two clamping jaws when the number of connecting rods is reduced or increased.

[0013] Preferably, the storage mechanism comprises a fixed frame, a plurality of soil sample cylinders, a plurality of sealing covers, a gear ring, a third driving motor and a gear, the fixed frame is rotatably installed on the guide cylinder, the plurality of soil sample cylinders are clamped on the fixed frame, the plurality of sealing covers are respectively covered on the top of the plurality of soil sample cylinders, the gear ring is sleeved on the fixed frame, the third driving motor is fixedly installed on the guide cylinder, the gear is installed on the output shaft of the third driving motor, and the gear is in meshing connection with the gear ring; the sealing covers on the top of the soil sample cylinders at the soil discharging direction of the two conveying belts are removed, so that the soil enters the soil sample cylinders, after the soil sample cylinders are filled, the third driving motor is turned on, the fixed frame is driven to rotate through the meshing transmission of the gear and the gear ring, and the soil sample cylinders at the soil discharging direction of the two conveying belts are replaced and moved to the top of the sealing covers at the soil discharging direction of the two conveying belts, and the sealing covers are also removed, so that the soil sample cylinders filled with soil are tightly covered by the sealing covers.

[0014] Preferably, the side end of the soil sample cylinder is provided with a baffle, and the baffle is in sliding connection with the soil sample cylinder; when the staff detects the soil in the soil sample cylinder, the baffle is removed from the soil sample cylinder by sliding, so that the staff can take out the soil at different positions in the soil sample cylinder.

[0015] Compared with the prior art, the present application has the following advantages: 1. The sampling mechanism and the storage mechanism are matched, the convenience of sampling and collecting loose soil is improved, and the staff can distinguish different depths of soil through the loading and taking of the soil by the plurality of soil sample cylinders; 2. The support and block of the annular air bag reduce the mixing of soil at different depths; 3. The structure is simple, convenient to carry, can be installed on a working vehicle or a support frame, and has strong applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the first axonometric structure schematic diagram of the present application; Figure 2 is the first axonometric structure schematic diagram of the present application; Figure 1 Figure 3 is the second axonometric structure schematic diagram of the present application; Figure 4 is the second axonometric structure schematic diagram of the present application; Figure 2 Figure 5 is the third axonometric structure schematic diagram of the present application; Figure 6 is the front view structure schematic diagram of the present application; Figure 7 is the front view structure schematic diagram of the present application; Figure 6 is the front view structure schematic diagram of the present application; Figure 8 is the left view sectional structure schematic diagram of the present application;​​ Figure 9 This is the invention Figure 8 A schematic diagram of the enlarged structure of part D in the diagram; Figure 10 This is a front view structural schematic diagram of the connecting rod of the present invention.

[0017] The attached diagram shows the following components: 1. Frame; 2. Hydraulic cylinder 1; 3. Lifting platform; 4. Drive motor 1; 5. Bevel gear 1; 6. Bevel gear 2; 7. Rotating shaft; 8. Polygonal shaft; 9. Polygonal bushing; 10. Spring; 11. Drill rod; 12. Drill bit; 13. Guide cylinder; 14. Exhaust pump; 15. Air supply pipe; 16. Rotary connecting pipe; 17. Electrically controlled pressure relief valve; 18. Support ring; 19. Rotating ring; 20. Airbag; 21. Air supply passage; 22. Drive shaft; 23. Conveyor belt; 24. Soil discharge plate; 25. Drive motor 2; 26. Support; 27. Hydraulic cylinder 2; 28. Gripper; 29. ​​Connecting rod; 30. Polygonal support; 31. Fixing frame; 32. Soil sample cylinder; 33. Sealing cover; 34. Gear ring; 35. Drive motor 3; 36. Gear; 37. Baffle. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0019] Example 1: As Figures 1 to 10 As shown, a mechanical sampling device for coal mine soil samples includes a drive mechanism; it also includes a sampling mechanism and a storage mechanism, both of which are mounted on the drive mechanism. The driving mechanism provides power to the sampling mechanism, which takes soil samples, and the storage mechanism stores the collected soil samples. The drive mechanism includes a frame 1, a hydraulic cylinder 2, a lifting platform 3, a drive motor 4, a bevel gear 5, a bevel gear 6, a guide cylinder 13, and a transmission mechanism. The lifting platform 3 is mounted on the frame 1 via the hydraulic cylinder 2. The drive motor 4 is mounted on the lifting platform 3. The bevel gear 5 is mounted on the output shaft of the drive motor 4. The transmission mechanism is mounted on the lifting platform 3. The bevel gear 6 is mounted on the transmission mechanism, and the bevel gear 6 and the bevel gear 5 are meshed. The guide cylinder 13 is mounted on the frame 1 and is located below the transmission mechanism. The transmission mechanism comprises a rotating shaft 7, a polygonal shaft 8, a polygonal shaft sleeve 9 and a spring 10, the rotating shaft 7 is rotatably installed on the lifting platform 3, the polygonal shaft 8 is installed at the bottom of the rotating shaft 7, the polygonal shaft sleeve 9 is slidably installed on the polygonal shaft 8, one end of the spring 10 is rotatably installed at the bottom of the lifting platform 3, the other end of the spring 10 is rotatably installed at the bottom of the polygonal shaft sleeve 9, and the bevel gear II 5 is installed at the top of the rotating shaft 7; The sampling mechanism comprises a drill rod 11, a drill bit 12, a blocking mechanism, a limiting mechanism and an ejection mechanism, the drill rod 11 is installed on the polygonal shaft sleeve 9, the drill bit 12 is installed at the bottom of the drill rod 11, and the drill rod 11 and the drill bit 12 are located in the guide cylinder 13, the blocking mechanism is installed on the drill rod 11, and the limiting mechanism and the ejection mechanism are both installed on the rack 1; The blocking mechanism comprises an exhaust pump 14, a gas conveying pipe 15, a rotary connecting pipe 16, an electrically-controlled pressure relief valve 17, a plurality of support rings 18, a plurality of rotating rings 19 and a plurality of air bags 20, the middle parts of the drill rod 11, the polygonal shaft 8, the rotating shaft 7 and the bevel gear II 6 are provided with gas conveying passages 21, the gas conveying passages 21 in the polygonal shaft 8, the rotating shaft 7 and the bevel gear II 6 are communicated, the exhaust pump 14 is installed on the lifting platform 3, one end of the gas conveying pipe 15 is installed on the exhaust port of the exhaust pump 14, the rotary connecting pipe 16 is installed at the top of the rotating shaft 7, the electrically-controlled pressure relief valve 17 is installed on the rotary connecting pipe 16, the plurality of support rings 18 are all installed on the drill rod 11, the plurality of rotating rings 19 are rotatably installed on the plurality of support rings 18 respectively, the plurality of air bags 20 are sleeved on the plurality of rotating rings 19 respectively, and the air bags 20 are communicated with the support rings 18 through the rotating rings 19, and the plurality of support rings 18 are all communicated with the gas conveying passages 21 in the drill rod 11; The ejection mechanism comprises a plurality of transmission shafts 22, two sets of conveying belts 23 and two sets of drive motors II 25, the plurality of transmission shafts 22 are all rotatably installed on the rack 1, the two sets of conveying belts 23 are sleeved on the plurality of transmission shafts 22 respectively, and the two sets of conveying belts 23 are all located above the guide cylinder 13, the two sets of conveying belts 23 are all provided with a plurality of soil discharge plates 24, and the two sets of drive motors II 25 are both fixedly installed on the rack 1, and the two sets of drive motors II 25 provide power for the two sets of soil discharge plates 24 respectively; The limiting mechanism comprises two sets of supports 26, two sets of hydraulic cylinders II 27 and two sets of clamping jaws 28, the two sets of supports 26 are both installed on the rack 1, the two sets of hydraulic cylinders II 27 are respectively installed on the two sets of supports 26, and the two sets of clamping jaws 28 are respectively installed on one end of the two sets of hydraulic cylinders II 27; The drill rod 11 is composed of a plurality of connecting rods 29, the top of the plurality of connecting rods 29 is provided with a threaded column, the bottom of the plurality of connecting rods 29 is provided with a threaded hole, and the plurality of connecting rods 29 are all provided with polygonal supports 30; The rack 1 is installed on the working vehicle, the rack 1 is moved to the designated position by the working vehicle, the height of the guide cylinder 13 is adjusted to make the guide cylinder 13 close to the ground, or the guide cylinder 13 is close to the ground, then the rack 1 is fixed on the support frame to keep the stability of the rack 1, then the drill rod 11 drives the drill bit 12 to rotate by opening the driving motor 4, engaging the bevel gear 5 and the bevel gear 6, and then driving through the rotating shaft 7, the multi-edge shaft 8 and the multi-edge shaft sleeve 9, then the drill rod 11 moves downward by the contraction of the hydraulic cylinder 1, and a hole is drilled on the ground by the drill bit 12, after the hydraulic cylinder 1 is contracted to the limit, the hydraulic cylinder 1 is extended to reset, then the two groups of clamping jaws 28 tightly hold the top of the drill rod 11 by the extension of the two groups of hydraulic cylinders 2, the drill rod 11 is limited, then the new connecting rod 29 is added on the drill rod 11, then the top of the new connecting rod 29 is connected with the multi-edge shaft sleeve 9 by pushing the multi-edge shaft sleeve 9 upward to make the spring 10 contract, then the above steps are repeated to continue to drill and sample, and the air is made to pass through the exhaust pump 14, the gas pipe 15, the rotary connecting pipe 16, the rotating shaft 7, the multi-edge shaft 8, the multi-edge shaft sleeve 9, the drill rod 11, the support ring 18 and the rotating ring 19 in sequence by the operation of the exhaust pump 14, so that the air enters the air bag 20, the hole wall is supported by the expansion of the air bag 20, and the mixture of the falling soil and the excavated soil at the bottom is reduced during the upward movement of the drill rod 11 by the expansion of the air bag 20, then the soil sample is collected, the drill bit 12 lifts the newly excavated soil upward by the extension of the hydraulic cylinder 1 and the removal of the added connecting rods 29 one by one, the collapsed soil is supported by the expansion of the air bag 20, and the two groups of conveying belts 23 are operated by the reverse operation of the two groups of driving motors 25, the transmission of the multiple groups of transmission shafts 22, so that the soil is discharged by the multiple groups of soil discharge plates 24, until the newly excavated soil is lifted to the top of the guide cylinder 13 by the drill bit 12, the two groups of conveying belts 23 are operated by the forward operation of the two groups of driving motors 25, the transmission of the multiple groups of transmission shafts 22, so that the soil is discharged by the multiple groups of soil discharge plates 24, thereby improving the practicability of the equipment.

[0020] Embodiment 2: A coal mine soil sample mechanical sampling device, further comprising: The storage mechanism comprises a fixed frame 31, a plurality of soil sample cylinders 32, a plurality of sealing covers 33, a tooth ring 34, a driving motor 35 and a gear 36, the fixed frame 31 is rotatably installed on the guide cylinder 13, the plurality of soil sample cylinders 32 are clamped on the fixed frame 31, the plurality of sealing covers 33 are respectively covered on the top of the plurality of soil sample cylinders 32, the tooth ring 34 is sleeved on the fixed frame 31, the driving motor 35 is fixedly installed on the guide cylinder 13, and the gear 36 is installed on the output shaft of the driving motor 35, and the gear 36 is in meshing connection with the tooth ring 34; The side end of the soil sample cylinder 32 is provided with a baffle 37, and the baffle 37 is in sliding connection with the soil sample cylinder 32; The frame 1 is installed on the working vehicle, the frame 1 is moved to the designated position through the working vehicle, the height of the guide cylinder 13 is adjusted to make the guide cylinder 13 close to the ground, or the guide cylinder 13 is close to the ground, then the frame 1 is fixed on the support frame, the stability of the frame 1 is kept, then the driving motor one 4 is turned on, the driving motor one 4 is driven through the meshing transmission of the bevel gear one 5 and the bevel gear two 6, then the drill rod 11 is driven to rotate through the transmission of the rotating shaft 7, the multi-edge shaft 8 and the multi-edge shaft sleeve 9, then the drill rod 11 is driven to move downward through the contraction of the hydraulic cylinder one 2, the hole is drilled on the ground through the drill bit 12, after the hydraulic cylinder one 2 is contracted to the limit, the hydraulic cylinder one 2 is extended to reset, then the two groups of hydraulic cylinder two 27 are extended, the two groups of clamping jaws 28 are used to hold the top of the drill rod 11, the drill rod 11 is limited, then the new connecting rod 29 is added on the drill rod 11, then the multi-edge shaft sleeve 9 is pushed upward, the spring 10 is contracted, the top of the new connecting rod 29 is connected with the multi-edge shaft sleeve 9, then the above steps are repeated to continue to drill and sample, and during the sampling process, the exhaust pump 14 is operated, air is sequentially passed through the exhaust pump 14, the air pipe 15, the rotary connecting pipe 16, the rotating shaft 7, the multi-edge shaft 8, the multi-edge shaft sleeve 9, the drill rod 11, the support ring 18 and the rotating ring 19, and then the air is introduced into the air bag 20, the hole wall is supported through the expansion of the air bag 20, and during the upward movement of the drill rod 11, the mixture of the falling soil and the excavated soil at the bottom is reduced through the expansion of the air bag 20, then when the soil sample is collected, the hydraulic cylinder one 2 is extended, and the added connecting rod 29 is taken down one by one, the drill bit 12 is lifted upward to the newly excavated soil, the collapsed soil is supported through the expansion of the air bag 20, and the two groups of driving motor two 25 are operated in reverse, the two groups of conveying belts 23 are driven to move through the transmission of the multiple groups of transmission shafts 22, the soil is discharged through the multiple groups of soil discharge plates 24, until the drill bit 12 lifts the newly excavated soil to the top of the guide cylinder 13, the two groups of driving motor two 25 are operated in the forward direction, the two groups of conveying belts 23 are driven to move through the transmission of the multiple groups of transmission shafts 22, and the soil is pushed into the soil sample cylinder 32 through the multiple groups of soil discharge plates 24, after the soil sample cylinder 32 is filled, the driving motor three 35 is turned on, the driving motor three 35 is driven to rotate through the meshing transmission of the gear 36 and the gear ring 34, the fixed frame 31 is driven to rotate, the soil sample cylinder 32 at the soil discharge direction of the two groups of conveying belts 23 is replaced, the sealing cover 33 at the top of the soil sample cylinder 32 is also taken down, the soil sample cylinder 32 filled with soil is tightly covered by the sealing cover 33, and when the soil in the soil sample cylinder 32 is detected by the staff, the baffle 37 is taken down from the soil sample cylinder 32 through the sliding baffle 37, the soil in the soil sample cylinder 32 at different positions is taken out, and the practicability of the equipment is improved.

[0021] The main functions realized by the present application are: 1. The sampling mechanism and the storage mechanism are combined to improve the convenience of sampling and collecting loose soil, and the soil is loaded and unloaded through multiple soil sample cylinders, so that the staff can distinguish the soil at different depths. 2. Support and block with ring-shaped air bag, reduce mixing of different depth of soil; 3. Simple structure, convenient to carry, can be used on working vehicle or support frame, strong applicability.

[0022] The installation mode, connection mode or setting mode of the coal mine soil sample mechanical sampling equipment are common mechanical modes, as long as the beneficial effects can be achieved, and implementation can be carried out; the working vehicle is a forklift; the bottom in the multi-edge shaft sleeve 9 is circular and is provided with internal threads; the soil discharge plate 24 is made of rubber material; the hydraulic cylinder one 2, the driving motor one 4, the exhaust pump 14, the electric control pressure relief valve 17, the driving motor two 25, the hydraulic cylinder two 27 and the driving motor three 35 of the coal mine soil sample mechanical sampling equipment are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0023] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A coal mine soil sampling mechanical sampling device, comprising a driving mechanism; characterized in that, The sampling mechanism and the storage mechanism are both mounted on the driving mechanism; The driving mechanism provides power for the sampling mechanism, and the sampling mechanism samples the soil, and the storage mechanism stores the collected soil samples.

2. A coal mine soil sampling apparatus as claimed in claim 1, wherein, The driving mechanism comprises a rack (1), a hydraulic cylinder (2), a lifting platform (3), a driving motor (4), a bevel gear (5), a bevel gear (6), a guide cylinder (13) and a transmission mechanism, the lifting platform (3) is installed on the rack (1) through the hydraulic cylinder (2), the driving motor (4) is installed on the lifting platform (3), the bevel gear (5) is installed on the output shaft of the driving motor (4), the transmission mechanism is installed on the lifting platform (3), the bevel gear (6) is installed on the transmission mechanism, and the bevel gear (6) is in meshing connection with the bevel gear (5), and the guide cylinder (13) is installed on the rack (1) and located below the transmission mechanism.

3. A coal mine soil sampling apparatus as claimed in claim 2, wherein, The transmission mechanism comprises a rotating shaft (7), a polygonal shaft (8), a polygonal shaft sleeve (9) and a spring (10), the rotating shaft (7) is rotatably installed on the lifting platform (3), the polygonal shaft (8) is installed at the bottom of the rotating shaft (7), the polygonal shaft sleeve (9) is slidably installed on the polygonal shaft (8), one end of the spring (10) is rotatably installed at the bottom of the lifting platform (3), and the other end of the spring (10) is rotatably installed at the bottom of the polygonal shaft sleeve (9), and the bevel gear (6) is installed at the top of the rotating shaft (7).

4. A coal mine soil sampling apparatus as claimed in claim 3, wherein, The sampling mechanism comprises a drill rod (11), a drill bit (12), a blocking mechanism, a limiting mechanism and an ejection mechanism, the drill rod (11) is installed on the polygonal shaft sleeve (9), the drill bit (12) is installed at the bottom of the drill rod (11), and the drill rod (11) and the drill bit (12) are located in the guide cylinder (13), the blocking mechanism is installed on the drill rod (11), and the limiting mechanism and the ejection mechanism are both installed on the rack (1).

5. A coal mine soil sampling apparatus as claimed in claim 4, wherein, The blocking mechanism comprises an exhaust pump (14), a gas conveying pipe (15), a rotary connecting pipe (16), an electric control pressure relief valve (17), a plurality of support rings (18), a plurality of rotating rings (19) and a plurality of air bags (20), the middle parts of the drill rod (11), the polygonal shaft (8), the rotating shaft (7) and the bevel gear (6) are provided with gas conveying passages (21), the gas conveying passages (21) in the polygonal shaft (8), the rotating shaft (7) and the bevel gear (6) are communicated, the exhaust pump (14) is installed on the lifting platform (3), one end of the gas conveying pipe (15) is installed on the exhaust port of the exhaust pump (14), the rotary connecting pipe (16) is installed at the top of the rotating shaft (7), the electric control pressure relief valve (17) is installed on the rotary connecting pipe (16), the plurality of support rings (18) are all installed on the drill rod (11), the plurality of rotating rings (19) are rotatably installed on the plurality of support rings (18) respectively, the plurality of air bags (20) are sleeved on the plurality of rotating rings (19) respectively, the air bags (20) are communicated with the support rings (18) through the rotating rings (19), and the plurality of support rings (18) are all communicated with the gas conveying passages (21) in the drill rod (11).

6. A coal mine soil sampling apparatus as claimed in claim 4, wherein, The discharging mechanism comprises multiple groups of transmission shafts (22), two groups of conveying belts (23) and two groups of driving motors two (25), the multiple groups of transmission shafts (22) are rotatably installed on the rack (1), the two groups of conveying belts (23) are sleeved on the multiple groups of transmission shafts (22) respectively, and the two groups of conveying belts (23) are located above the guide cylinder (13), the multiple groups of conveying belts (23) are provided with multiple groups of soil discharge plates (24), and the two groups of driving motors two (25) are fixedly installed on the rack (1) and provide power for the two groups of soil discharge plates (24) respectively.

7. A coal mine soil sampling apparatus as claimed in claim 4, wherein, The limiting mechanism comprises two groups of supports (26), two groups of hydraulic cylinders two (27) and two groups of clamping jaws (28), the two groups of supports (26) are installed on the rack (1), the two groups of hydraulic cylinders two (27) are installed on the two groups of supports (26) respectively, and the two groups of clamping jaws (28) are installed on one end of the two groups of hydraulic cylinders two (27) respectively.

8. A coal mine soil sampling apparatus as claimed in claim 4, wherein, The drill rod (11) is composed of multiple groups of connecting rods (29), the top of the multiple groups of connecting rods (29) is provided with a threaded column, the bottom of the multiple groups of connecting rods (29) is provided with a threaded hole, and the multiple groups of connecting rods (29) are provided with multiple side supports (30).

9. A coal mine soil sampling apparatus as claimed in claim 2, wherein, The storage mechanism comprises a fixing frame (31), multiple groups of soil sample cylinders (32), multiple groups of sealing covers (33), a gear ring (34), a driving motor three (35) and a gear (36), the fixing frame (31) is rotatably installed on the guide cylinder (13), the multiple groups of soil sample cylinders (32) are clamped on the fixing frame (31), the multiple groups of sealing covers (33) are respectively covered on the top of the multiple groups of soil sample cylinders (32), the gear ring (34) is sleeved on the fixing frame (31), the driving motor three (35) is fixedly installed on the guide cylinder (13), the gear (36) is installed on the output shaft of the driving motor three (35), and the gear (36) is in meshing connection with the gear ring (34).

10. A coal mine soil sampling apparatus as claimed in claim 9, wherein, The side end of the soil sample cylinder (32) is provided with a baffle (37), and the baffle (37) is in sliding connection with the soil sample cylinder (32).

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