Soil testing process pulverizer

Abstract

This invention provides a soil crushing device for soil testing and processing, including a base, a guide assembly and a first drive assembly on the base. The first drive assembly drives a crushing shell containing soil to move horizontally along the guide assembly. Inside the crushing shell is a crushing section for crushing the soil. The top of the crushing section is connected to a second drive assembly via a transmission assembly. The second drive assembly drives the crushing section to rotate synchronously during its downward movement, ensuring that the crushing section does not contact the bottom or sidewall of the crushing shell's inner cavity when it reaches its lowest position. At the bottom of the crushing shell is a collection shell for receiving the crushed soil particles, distributed along the movement trajectory of the crushing shell. During operation, the first drive assembly moves the crushing shell horizontally to shake and loosen the soil. The second drive assembly, by adjusting the thickness of the crushing chamber and coordinating with rotational compression, performs flexible and uniform crushing of the air-dried soil, maintaining the integrity of the soil particle structure while avoiding excessive compaction.

Description

Technical Field

[0001] This invention relates to the field of soil testing, specifically to a pulverizing device for soil testing and processing. Background Technology

[0002] Soil testing is a fundamental task in agricultural production, ecological environment assessment, and land quality management. By analyzing soil nutrients, physicochemical properties, and pollution indicators, it provides important information for fertilization decisions, farmland quality evaluation, and environmental remediation. Before conducting soil testing, the collected soil samples typically undergo standardized pretreatment to ensure the accuracy and representativeness of the test results.

[0003] In existing soil testing procedures, collected soil samples often need to be air-dried first to eliminate the interference of moisture on the test results. However, due to moisture evaporation, air-dried soil tends to form clumps of varying sizes, which is detrimental to subsequent sampling, sieving, and physicochemical analysis. Therefore, after air-drying, the soil usually needs to be properly broken up to transform it from clumps into relatively uniform particles.

[0004] However, soil testing places high demands on the crushing method used in the pretreatment process. The purpose of crushing is to loosen clumps and improve sample homogeneity, not to excessively crush or grind soil particles into powder. If the compressive or shearing forces applied during crushing are too great, it can easily damage the original particle structure and particle size distribution of the soil, thereby affecting the accuracy of the soil's physicochemical properties, reducing the reliability of test results, and even causing irreversible interference to some test indicators.

[0005] Existing soil crushing or pulverizing equipment mostly uses rigid compaction, high-force shearing, or high-speed grinding to process materials. Their structure and working principle are more inclined to completely crush or refine materials. When applied to the pretreatment of air-dried soil, problems such as difficulty in controlling crushing intensity, localized stress concentration, and excessive crushing or pulverization of soil particles are prone to occur. It is difficult to meet the requirements of "fully loosening soil clumps" and "maintaining the integrity of soil particle structure".

[0006] Therefore, how to implement a controlled, gentle, and adjustable crushing method for air-dried soil during the pretreatment process for soil testing, so that the soil can be effectively broken down into particles while avoiding excessive damage to the soil particles, has become a technical problem that urgently needs to be solved in the existing technology. Summary of the Invention

[0007] In order to solve the problem that in the existing soil testing pretreatment, when air-dried soil is crushed, the soil particles are easily over-crushed due to uncontrollable crushing intensity, making it difficult to balance the loosening of clumps and the preservation of particle structure, the present invention provides a crushing device for soil testing treatment.

[0008] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides a crushing device for soil testing and processing, including a base, a guide component and a first drive component are provided on the base, the first drive component drives a crushing shell containing soil to slide on the guide component, the crushing shell is provided with a crushing part that can crush soil, and the top of the crushing part is connected to a second drive component through a transmission component. The second drive assembly drives the crushing part to move downward through the transmission assembly, and the crushing part also rotates synchronously during the downward movement, and the crushing part at the lowest position does not contact the bottom side wall of the inner cavity of the crushing shell. The bottom of the crushing shell is provided with an aggregate shell for receiving crushed soil particles, and the aggregate shell is distributed along the movement trajectory of the crushing shell. The bottom region of the crushing shell is a spherical structure, and the crushing end face of the crushing part is also a spherical structure. The inner wall of the crushing shell and the crushing end face together form a spherical crushing cavity.

[0009] The center of the spherical structure of the fractured shell and the center of the spherical fracture end face of the fractured part are on the same vertical straight line.

[0010] After the air-dried soil to be tested is poured into the crushing shell through an open structure at the top, the first and second drive components are activated to work together. The first drive component drives the crushing shell to move horizontally, causing relative displacement between the inner wall of the crushing shell and the soil inside. This creates a continuous shaking and loosening effect on the soil inside the shell, gradually breaking down the originally clumped air-dried soil and transforming it into a granular structure.

[0011] Simultaneously, as the second drive component moves the crushing section vertically downwards, it also causes the crushing section to rotate synchronously. By changing the vertical position of the crushing section, the thickness of the crushing cavity formed between the crushing end face and the crushing shell is adjusted, thereby applying a gradual and flexible compression force to the soil under different gap conditions. During its downward movement, the crushing section continuously changes its stress position with the soil through rotation, avoiding long-term concentrated pressure on local areas.

[0012] Furthermore, when the crushing section moves down to its lowest working position, its crushing end face does not contact the bottom or sidewall of the crushing shell's inner cavity. Structurally, this avoids creating rigid compaction or forced grinding conditions, thus preventing excessive crushing or pulverization of soil particles. As a result, the air-dried soil undergoes crushing under the combined action of multiple dimensions, including horizontal shaking, vertical gap compression, and rotational dispersion. This achieves gentle and uniform crushing of the air-dried soil, ensuring effective disintegration of soil clumps while maximizing the preservation of the original structural characteristics of the soil particles.

[0013] In this technical solution, the guiding component includes a guide rail, and at least one connector is slidably connected to the guide rail. One end of the connector is fixed to the outer wall of the crushing shell, and the other end is slidably connected to the guide rail. The guide rail is fixed to the base.

[0014] The first drive component drives the crushed shell to move along the guide rail.

[0015] In this technical solution, the connecting component includes a guide slider, which is slidably connected to the guide rail. One end of the connecting plate is fixed to the surface of the guide slider, and the other end of the connecting plate is fixed to the outer wall of the crushing shell. The guide rail has a ring structure, and the portion of the guide slider located within the inner cavity of the guide rail has a fan-shaped structure.

[0016] The first drive component moves the crushing shell, and the guide slider connected to the crushing shell slides on the guide rail of the annular structure. Through the sliding connection between the guide slider and the guide rail, the movement of the crushing shell is guided and supported.

[0017] The aggregate shell has a ring structure and is fixed to the base by rods.

[0018] The crushed soil particles flow out from the discharge shell, which moves synchronously with the crushing shell, and fall into the annular collection shell. A discharge port can be opened on the bottom side wall of the collection shell.

[0019] In this technical solution, the first drive component includes a drive motor, which is fixed on the base, and a second drive shaft is fixed on the output end of the drive motor. The second drive shaft has a "Z" shaped structure, and the end of the second drive shaft is fixed to an eccentric position on one side of the bottom of the crushed shell.

[0020] The drive motor drives the crushing shell to move eccentrically in a circular trajectory via the second drive rod.

[0021] In this technical solution, a discharge channel is provided at the center of the bottom side wall of the crushing shell, and the discharge channel is covered with a rigid filter screen. A discharge shell is fixed at the periphery of the discharge channel, and the discharge shell is a tubular structure.

[0022] Soil that meets the particle size requirements is filtered through a filter screen and then enters the aggregate shell.

[0023] The end of the second drive shaft is fixed to the outer wall of the crushing shell on one side of the discharge shell.

[0024] The drive motor drives the crushing shell to rotate eccentrically in a circular trajectory via the drive shaft. The rotating crushing shell slides on the guide rail via the guide slider, and the guide rail has a ring structure.

[0025] In this technical solution, the second driving component includes a driving element, which is mounted on the crushing shell. The telescopic end at the bottom of the driving element is connected to the crushing part through a transmission component. The driving element drives the transmission component and the crushing part to move down synchronously. During the downward movement, the transmission component drives the crushing part to rotate.

[0026] The driving component is one of an electric push rod, a pneumatic push rod, or a hydraulic push rod. The extension and retraction of the driving component drives the crushing part to move back and forth vertically.

[0027] In this technical solution, the crushing part includes crushing balls, which are connected to the transmission assembly via a synchronizing rod at their top; The crushing ball has a hollow structure, and a buffer airbag is fixedly fitted onto the surface of the crushing ball. The buffer airbag has a spherical structure.

[0028] In this technical solution, the drive component is fixed to the outer wall of the crushing shell by the first mounting bracket, and the first drive shaft connected to the telescopic end of the drive component is fixed vertically to the top of the transmission assembly. The bottom of the transmission assembly is fixedly connected to the synchronous rod at the top of the crushing ball.

[0029] In this technical solution, the transmission assembly includes a bearing vertical shaft, the top of which is rotatably connected to a first coupling shaft via a connecting unit, and the first coupling shaft is fixedly connected to a first drive shaft; The bottom end of the supporting vertical shaft is fixed to the top of the synchronizing rod by an extension rod. A transmission unit is also provided on the surface of the supporting vertical shaft. The transmission unit includes a driving component and a driven component. The driven component is set on the supporting shaft and mounted on the crushing shell.

[0030] The driving component is fixed in position, and the driven component moves down synchronously with the crushing section. The moving driven component slides on the driving component, thereby driving the bearing vertical shaft to rotate.

[0031] When the driving component moves the crushing part up and down, it drives the crushing part to rotate through the transmission assembly.

[0032] In this technical solution, the connecting unit includes a rotating ring, which is sleeved and fixed on the surface of the bearing vertical shaft. An outer shell is sleeved on the outside of the rotating ring, and the outer shell is fixed to the surface of the first connecting shaft by multiple connecting rods. The rotating ring rotates inside the outer shell, and a coil spring is sleeved on the surface of the vertical shaft. The two ends of the coil spring are fixed to the vertical shaft and the outer shell or the first connecting shaft, respectively.

[0033] The rotation of the vertical axis is achieved by the rotation of the rotating ring inside the outer shell.

[0034] In this technical solution, the driven component includes a bearing plate, which is sleeved and fixed on the bearing vertical shaft. Two guide plates arranged in a centrally symmetrical manner are fixedly installed at the bottom of the bearing plate, and the guide plates have a spiral structure. The driving component includes two fixed rods, which are located below two guide plates respectively. A limit ball is fixed to the top of the fixed rod, and the limit ball can overlap with the downward-moving guide plate. The guide bar is fixed to the bottom side wall of the support plate by multiple support rods.

[0035] As the vertical support shaft and the breaking ball move downwards synchronously, the guide plate, which is fixedly connected to the vertical support shaft, also moves downwards synchronously. The bottom outer wall of the moving guide plate first contacts the limiting ball, and the spiral inclined surface on the guide plate pushes it to rotate, thereby causing the vertical support shaft to rotate. The rotating ring on the vertical support shaft rotates inside the outer shell. At this time, the coil spring deforms, continuing to carry the elastic potential energy required for the vertical support shaft to reverse and reset.

[0036] When the supporting vertical shaft and the crushing part move upward, the supporting vertical shaft rotates in the opposite direction under the action of the coil spring, thus completing the reset.

[0037] In this technical solution, the bottom of the fixing rod is fixed to the mounting ring, the mounting ring is sleeved on the outside of the bearing vertical shaft and is coaxial with the bearing vertical shaft, and the mounting ring is fixed to the crushing shell by the second mounting bracket.

[0038] The mounting ring does not contact the bearing vertical shaft, and its position remains fixed relative to the bearing vertical shaft. It is used to mount the drive component.

[0039] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0040] The positive and progressive effects of this invention are as follows: By introducing the air-dried soil sample into the crushing shell through the open structure at the top of the crushing shell, and simultaneously activating the first and second drive components, this device can perform coordinated and controllable gentle crushing of the soil in multiple directions and multiple action dimensions. Specifically, the first drive component drives the crushing shell to move back and forth or offset in the horizontal direction, causing relative displacement between the inner wall of the crushing shell and the soil. This creates a shaking and loosening effect on the accumulated air-dried soil, causing the originally clumped soil to naturally break down into smaller particles, rather than relying on high-intensity compression or shearing.

[0041] Simultaneously, as the second drive component moves the crushing section vertically downwards, it causes the crushing section to rotate synchronously, thereby continuously changing the relative posture and force position between the crushing section and the crushing shell during the downward movement. On the one hand, by adjusting the position of the crushing section in the vertical direction, the thickness of the crushing cavity formed between the crushing end face and the inner wall of the crushing shell can be changed, allowing the soil to be subjected to gradual and progressive compression and dispersion under different gap conditions. On the other hand, the rotational motion causes the point of action of the crushing end face on the soil to continuously change, avoiding long-term concentrated pressure in local areas, thereby significantly reducing the risk of damage to soil particles.

[0042] Furthermore, when the crushing section moves down to its lowest working position, its crushing end face does not make rigid contact with the bottom or side wall of the crushing shell cavity, avoiding rigid crushing or grinding conditions and structurally preventing excessive crushing or pulverization of soil particles. Thus, the soil is primarily crushed through a combination of "shaking and loosening – gap compression – rotational dispersion".

[0043] Through the coordinated operation of the above-mentioned structure and driving method, this device can carry out a flexible and uniform crushing process on air-dried soil in multiple dimensions such as horizontal disturbance, vertical gap adjustment and rotational dispersion. While ensuring the effective disintegration of soil blocks, it can maintain the original particle size structure and representativeness of soil particles to the greatest extent. It is particularly suitable for soil pretreatment scenarios and can effectively improve the accuracy and reliability of subsequent test results. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure viewed from below; Figure 3 For the present invention Figure 1 A top-view structural diagram; Figure 4 This is a schematic diagram of the connection structure of the crushing shell and the second drive assembly and transmission assembly on top of the crushing shell according to the present invention. Figure 5 For the present invention Figure 4 A structural diagram from another perspective; Figure 6 For the present invention Figure 4 A top-view structural diagram; Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure at point AA; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point I; Figure 9 This is a schematic diagram of the planar structure of the transmission component of the present invention; Figure 10 This is a three-dimensional structural schematic diagram of the transmission component of the present invention; Figure 11 For the present invention Figure 7 A magnified schematic diagram of the structure at point J.

[0045] Explanation of reference numerals in the attached figures 1. Base; 2. Guide assembly; 21. Guide rail; 22. Guide slider; 3. Crushing shell; 31. Discharge shell; 32. Filter screen; 4. Collection shell; 5. Drive component; 51. First mounting bracket; 52. First drive shaft; 6. Transmission assembly; 61. Bearing vertical shaft; 611. Extension rod; 62. First coupling; 63. Rotating ring; 64. Outer shell; 65. Connecting rod; 66. Bearing plate; 67. Guide strip; 671. Bearing rod; 68. Fixing rod; 681. Limiting ball; 69. Mounting ring; 691. Second mounting bracket; 7. Breaking ball; 71. Synchronizing rod; 72. Buffer airbag; 8. Drive motor; 81. Second drive shaft. Detailed Implementation

[0046] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0047] like Figure 1 and Figure 2 As shown, the soil testing and processing crushing device includes a base 1, a guide component 2 and a first drive component are provided on the base 1, the first drive component drives the crushing shell 3 containing soil to slide on the guide component 2, the crushing shell 3 is provided with a crushing part that can crush soil inside, and the top of the crushing part is connected to the second drive component through the transmission component 6. The second drive assembly drives the crushing part to move downward through the transmission assembly 6, and the crushing part also rotates synchronously during the downward movement, and the crushing part at the lowest position does not contact the bottom side wall of the inner cavity of the crushing shell 3. The bottom of the crushing shell 3 is provided with an aggregate shell 4 for receiving crushed soil particles, and the aggregate shell 4 is distributed along the moving trajectory of the crushing shell 3. The bottom area of ​​the crushing shell 3 is a spherical structure, and the crushing end face of the crushing part is also a spherical structure. The inner wall of the crushing shell 3 and the crushing end face together form a spherical crushing cavity.

[0048] The center of the spherical structure of the broken shell 3 and the center of the spherical broken end face of the broken part are on the same vertical straight line.

[0049] The air-dried soil to be tested is poured into the crushing shell 3 through the open structure at the top of the crushing shell 3. Then, the first drive component and the second drive component are activated. The first drive component drives the crushing shell 3 to move horizontally, thereby shaking the soil on the inner wall of the crushing shell 3 and changing it into particles. The second drive component drives the crushing part to rotate during the downward movement, thereby adjusting the vertical position of the crushing part and changing the thickness of the crushing cavity between the crushing end face and the crushing shell 3, which compresses the soil. Since the crushing part at the lowest position does not contact the bottom side wall of the inner cavity of the crushing shell 3, it will not excessively crush the soil and avoid damaging the soil particles. Thus, the air-dried soil is gently crushed in several dimensions.

[0050] like Figure 1 As shown, the guide assembly 2 includes a guide rail 21, and at least one connector is slidably connected to the guide rail 21. One end of the connector is fixed to the outer wall of the crushing shell 3, and the other end is slidably connected to the guide rail 21. The guide rail 21 is fixed on the base 1.

[0051] The first drive component drives the broken shell 3 to move along the guide rail 21.

[0052] Specifically, the connector includes a guide slider 22, which is slidably connected to the guide rail 21. One end of the connecting plate is fixed to the surface of the guide slider 22, and the other end of the connecting plate is fixed to the outer wall of the crushed shell 3. The guide rail 21 has a ring structure, and the portion of the guide slider 22 located within the inner cavity of the guide rail 21 has a fan-shaped structure.

[0053] The first drive component drives the crushed shell 3 to move. The guide slider 22 connected to the crushed shell 3 slides on the guide rail 21 of the annular structure. Through the sliding connection between the guide slider 22 and the guide rail 21, the movement of the crushed shell 3 is guided and supported.

[0054] The collection shell 4 has a ring structure and is fixed to the base 1 by rods.

[0055] The crushed soil particles flow out from the discharge shell 31, which moves synchronously with the crushing shell 3, and fall into the annular collection shell 4. The bottom side wall of the collection shell 4 can be provided with a discharge port.

[0056] like Figure 5 As shown, the first drive assembly includes a drive motor 8, which is fixed on the base 1. A second drive shaft 81 is fixed on the output end of the drive motor 8. The second drive shaft 81 has a "Z" shaped structure, and the end of the second drive shaft 81 is fixed to an eccentric position on one side of the bottom of the crushing shell 3.

[0057] The drive motor 8 drives the crushing shell 3 to move eccentrically in a circular trajectory via the second drive rod.

[0058] The bottom side wall of the crushing shell 3 is provided with a discharge channel, and the discharge channel is covered with a rigid filter screen 32. The discharge shell 31 is fixed around the discharge channel and the discharge shell 31 is a tubular structure.

[0059] Soil that meets the particle size requirements is filtered through filter screen 32 and then enters the aggregate shell 4.

[0060] The end of the second drive shaft 81 is fixed to the outer wall of the crushing shell 3 on one side of the discharge shell 31.

[0061] The drive motor 8 drives the crushing shell 3 to rotate eccentrically in a circular trajectory via the drive shaft. The rotating crushing shell 3 slides on the guide rail 21 via the guide slider 22. The guide rail 21 has a ring structure.

[0062] like Figure 4 As shown, the second drive assembly includes a drive component 5, which is mounted on the crushing shell 3. The telescopic end at the bottom of the drive component 5 is connected to the crushing part via a transmission assembly 6. The drive component 5 drives the transmission assembly 6 and the crushing part to move down synchronously. During the downward movement, the transmission assembly 6 drives the crushing part to rotate.

[0063] The driving component 5 is one of an electric push rod, a pneumatic push rod, and a hydraulic push rod. The extension and retraction of the driving component 5 drives the crushing part to move back and forth vertically.

[0064] The crushing section includes crushing balls 7, which are connected to the transmission assembly 6 via a synchronizing rod 71 at their top; The crushing ball 7 has a hollow structure, and a buffer airbag 72 is fixedly fitted onto the surface of the crushing ball 7. The buffer airbag 72 has a spherical structure.

[0065] Specifically, the drive component 5 is fixed to the outer wall of the crushing shell 3 by the first mounting bracket 51, and the first drive shaft 52 connected to the telescopic end of the drive component 5 is fixed vertically to the top of the transmission assembly 6. The bottom of the transmission assembly 6 is fixedly connected to the synchronizing rod 71 at the top of the crushing ball 7.

[0066] like Figures 9-11 As shown, the transmission assembly 6 includes a supporting vertical shaft 61, the top of which is rotatably connected to a first connecting shaft 62 via a connecting unit, and the first connecting shaft 62 is fixedly connected to a first drive shaft 52. The bottom end of the bearing vertical shaft 61 is fixed to the top of the synchronizing rod 71 by the extension rod 611. The surface of the bearing vertical shaft 61 is also provided with a transmission unit, which includes a driving component 5 and a driven component. The driven component is set on the bearing shaft and is installed on the crushing shell 3.

[0067] The driving component 5 is fixed in position, and the driven component moves down synchronously with the crushing part. The moving driven component slides on the driving component 5, thereby driving the bearing vertical shaft 61 to rotate.

[0068] When the drive component 5 drives the crushing part to rise and fall, it drives the crushing part to rotate through the transmission component 6.

[0069] The connecting unit includes a rotating ring 63, which is sleeved and fixed on the surface of the bearing vertical shaft 61. An outer shell 64 is sleeved on the outside of the rotating ring 63, and the outer shell 64 is fixed on the surface of the first connecting shaft 62 by multiple connecting rods 65. The rotating ring 63 rotates inside the outer shell 64. A coil spring is sleeved on the surface of the bearing vertical shaft 61, and the two ends of the coil spring are respectively fixed to the bearing vertical shaft 61 and the outer shell 64 or the first connecting shaft 62.

[0070] The rotation of the vertical axis 61 is achieved by the rotation of the rotating ring 63 inside the outer shell 64.

[0071] The driven component includes a bearing plate 66, which is sleeved and fixed on the bearing vertical shaft 61. Two guide plates 67 arranged in a centrally symmetrical manner are fixedly installed at the bottom of the bearing plate 66. The guide plates 67 have a spiral structure. The driving component 5 includes two fixing rods 68, which are located below the two guide plates 67 respectively. The top of the fixing rods 68 is fixed with a limiting ball 681, and the limiting ball 681 can overlap with the downward-moving guide plate 67. The guide plate 67 is fixed to the bottom side wall of the bearing plate 66 by multiple bearing rods 671.

[0072] When the supporting vertical shaft 61 and the breaking ball 7 move downwards synchronously, the guide plate 67, which is fixedly connected to the supporting vertical shaft 61, also moves downwards synchronously. The bottom outer wall of the moving guide plate 67 first contacts the limiting ball 681, and the spiral inclined surface on the guide plate 67 pushes it to rotate, thereby causing the supporting vertical shaft 61 to rotate. The rotating ring 63 on the supporting vertical shaft 61 rotates inside the outer shell 64. At this time, the coil spring deforms, continuing to carry the elastic potential energy required for the supporting vertical shaft 61 to reverse and reset.

[0073] When the bearing vertical shaft 61 and the crushing part move upward, the bearing vertical shaft 61 rotates in the opposite direction under the action of the coil spring, thus completing the reset.

[0074] The bottom of the fixing rod 68 is fixed on the mounting ring 69. The mounting ring 69 is sleeved on the outside of the bearing vertical shaft 61 and is coaxial with the bearing vertical shaft 61. The mounting ring 69 is fixed on the crushing shell 3 by the second mounting bracket 691.

[0075] The mounting ring 69 does not contact the bearing vertical shaft 61, and its position is fixed relative to the bearing vertical shaft 61. It is used to mount the drive component 5.

[0076] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A pulverizing device for soil testing and treatment, comprising a base (1), wherein a guide assembly (2) and a first drive assembly are disposed on the base (1), characterized in that: The first drive assembly drives the soil-filled crushing shell (3) to slide on the guide assembly (2). The crushing shell (3) has a crushing part that can crush soil inside. The top of the crushing part is connected to the second drive assembly through the transmission assembly (6). The second drive assembly drives the crushing part to move down through the transmission assembly (6), and the crushing part also rotates synchronously during the downward movement, and the crushing part at the lowest position does not contact the bottom side wall of the inner cavity of the crushing shell (3); The bottom of the crushing shell (3) is provided with an aggregate shell (4) for receiving crushed soil particles, and the aggregate shell (4) is distributed along the movement trajectory of the crushing shell (3). The bottom area of ​​the crushing shell (3) is a spherical structure, and the crushing end face of the crushing part is also a spherical structure. The inner wall of the crushing shell (3) and the crushing end face together form a spherical crushing cavity.

2. The pulverizing device for soil testing and treatment as described in claim 1, characterized in that: The guide assembly (2) includes a guide rail (21), on which at least one connector is slidably connected. One end of the connector is fixed to the outer wall of the broken shell (3), and the other end is slidably connected to the guide rail (21). The guide rail (21) is fixed on the base (1); The connector includes a guide slider (22), which is slidably connected to the guide rail (21). One end of the connecting plate is fixed to the surface of the guide slider (22), and the other end of the connecting plate is fixed to the outer wall of the broken shell (3). The guide rail (21) has a ring structure, and the part of the guide slider (22) located in the inner cavity of the guide rail (21) has a fan-shaped structure.

3. The pulverizing device for soil testing and treatment as described in claim 1, characterized in that: The first drive assembly includes a drive motor (8), which is fixed on the base (1), and a second drive shaft (81) is fixed on the output end of the drive motor (8). The second drive shaft (81) has a "Z" shaped structure, and the end of the second drive shaft (81) is fixed to an eccentric position on one side of the bottom of the crushed shell (3).

4. The pulverizing device for soil testing and treatment as described in claim 3, characterized in that: The bottom side wall of the crushing shell (3) is provided with a discharge channel, and the discharge channel is covered with a filter screen (32). The discharge shell (31) is fixed around the discharge channel and the discharge shell (31) is a tubular structure.

5. The pulverizing device for soil testing and treatment as described in claim 1, characterized in that: The second drive assembly includes a drive member (5), which is mounted on the crushing shell (3). The telescopic end of the bottom of the drive member (5) is connected to the crushing part through a transmission assembly (6). The drive member (5) drives the transmission assembly (6) and the crushing part to move down synchronously. The transmission assembly (6) drives the crushing part to rotate during the downward movement.

6. The pulverizing device for soil testing and treatment as described in claim 1, characterized in that: The crushing section includes a crushing ball (7), which is connected to the transmission assembly (6) via a synchronizing rod (71) at its top; The crushing ball (7) has a hollow structure, and a buffer airbag (72) is fixedly attached to the surface of the crushing ball (7). The buffer airbag (72) has a spherical structure.

7. The pulverizing device for soil testing and treatment as described in claim 5, characterized in that: The drive component (5) is fixed to the outer wall of the crushing shell (3) by the first mounting bracket (51), and the first drive shaft (52) connected to the telescopic end of the drive component (5) is fixed vertically to the top of the transmission assembly (6). The bottom of the transmission assembly (6) is fixedly connected to the synchronizing rod (71) at the top of the crushing ball (7).

8. The pulverizing device for soil testing and treatment as described in claim 5, characterized in that: The transmission assembly (6) includes a bearing vertical shaft (61), the top of which is rotatably connected to a first connecting shaft (62) via a connecting unit, and the first connecting shaft (62) is fixedly connected to a first drive shaft (52). The bottom end of the bearing vertical shaft (61) is fixed to the top of the synchronizing rod (71) by an extension rod (611). The surface of the bearing vertical shaft (61) is also provided with a transmission unit, which includes a driving member (5) and a driven member. The driven member is set on the bearing shaft and installed on the crushing shell (3).

9. The pulverizing device for soil testing and treatment as described in claim 8, characterized in that: The connecting unit includes a rotating ring (63), which is sleeved and fixed on the surface of the bearing vertical shaft (61). An outer shell (64) is sleeved on the outside of the rotating ring (63), and the outer shell (64) is fixed on the surface of the first connecting shaft (62) by multiple connecting rods (65). The rotating ring (63) rotates inside the outer shell (64), and a coil spring is sleeved on the surface of the bearing vertical shaft (61). The two ends of the coil spring are respectively fixed on the bearing vertical shaft (61) and the outer shell (64) or the first connecting shaft (62).

10. The pulverizing device for soil testing and treatment as described in claim 9, characterized in that: The driven component includes a bearing plate (66), which is sleeved and fixed on the bearing vertical shaft (61). Two guide plates (67) arranged in a centrally symmetrical manner are fixedly installed at the bottom of the bearing plate (66). The guide plates (67) have a spiral structure. The driving component (5) includes two fixing rods (68), which are located below the two guide plates (67) respectively. A limiting ball (681) is fixed at the top of the fixing rod (68), and the limiting ball (681) can overlap with the downward-moving guide plate (67). The guide bar (67) is fixed to the bottom side wall of the bearing plate (66) by a plurality of bearing rods (671); The bottom of the fixing rod (68) is fixed on the mounting ring (69). The mounting ring (69) is sleeved on the outside of the bearing vertical shaft (61) and is coaxial with the bearing vertical shaft (61). The mounting ring (69) is fixed on the broken shell (3) by the second mounting bracket (691).

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