Crushing device for underground water engineering sampling

Abstract

The invention relates to the technical field of crushing, in particular to a crushing device for underground water engineering sampling, which comprises a box body, and the box body is divided into a first cavity and a second cavity; a flow guide plate which is obliquely distributed and can deflect and rotate is further arranged in the first cavity; a first crushing body is welded and mounted at the bottom of the flow guide plate; a first driver is further arranged on one side of the flow guide plate; a fixing plate and a fine crushing structure are further arranged in the second cavity; the fine crushing structure comprises a moving arm, a base plate, a driving arm and a second crushing body; the movable arm is driven by the adjusting piece to move up and down in a reciprocating manner with variable amplitude; a plurality of annular third crushing bodies which are uniformly distributed are further arranged in the second crushing body; reverse finish machining crushing operation is performed between the outer side wall of the third crushing body and the second crushing body at a preset differential speed; according to the invention, the structural design is reasonable, a diversified efficient crushing operation mode of extrusion-hammering-differential grinding is adopted, the particle size requirement required by inspection, detection and analysis of a sampled material is effectively met, and the crushing efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of crushing technology, in particular to a crushing device for groundwater engineering sampling. Background Art

[0002] Groundwater engineering sampling is a crucial component of project quality control, crucial for ensuring project quality, improving construction efficiency, and reducing construction costs. It also aims to standardize on-site sampling in construction projects, ensuring the accuracy and reliability of sampling data, and providing strong assurance for project quality. Before testing and analysis, hard materials such as rock sampled in projects require crushing to achieve the required particle size. However, existing rock crushing equipment is relatively simple in structure and ineffective.

[0003] The query of the disclosed prior art "CN106733102B, a high-efficiency building stone crusher" records that "a rope puller is installed on the top of the stone crusher body, and the rope puller is bonded to the stone crusher body by strong glue, and an engine box and a start switch are installed at the bottom of the rope puller, and a rotating shaft and a transmission arm are provided at the bottom end of the engine box, and the engine box and the rotating shaft are movably connected through the transmission arm, and one end of the rotating shaft is provided with an anti-slip stone conveying plate and a fixed conveying plate card box, which improves the efficiency of stone crushing by the high-efficiency building stone crusher, has a high degree of automation, saves manpower, and more importantly, promotes the rapid development of high-efficiency building stone crushing. In the selection of daily stone crushers, we must also consider its final use. This crusher can divide the degree of stone crushing into several levels. For this reason, high-efficiency building stone crushers have future development prospects."

[0004] However, while the above-mentioned prior art stone crushers can achieve the purpose of grading the degree of stone crushing to a certain extent, their crushing structure is simple, the crushing method is relatively single, the crushing effect is poor, and resource utilization is not reasonable. In other words, it is impossible to achieve diversified and efficient stone crushing based on the rational use of a small space, and also to achieve fine stone material grinding processing, so as to effectively achieve the particle size requirements for sample material inspection, testing and analysis. Summary of the Invention

[0005] In order to solve the above-mentioned shortcomings and deficiencies in the use of existing stone crushing devices, the present invention provides a crushing device for groundwater engineering sampling with a reasonable structural design, a volume reduced by 30% compared with traditional crushing structures on the basis of the same crushing efficiency, a diversified and efficient crushing operation mode of extrusion-hammering-differential grinding, and effective achievement of the particle size requirements required for inspection, testing and analysis of sampled materials.

[0006] The present invention adopts the following technical solutions to achieve the above-mentioned purpose: A crushing device for groundwater engineering sampling, comprising a box body, which is vertically distributed, and the inner cavity of the box body is divided into a first cavity and a second cavity from top to bottom; a guide plate which is inclined and can be deflected and rotated is also provided in the first cavity, and a first crushing body is welded and installed at the bottom of the guide plate, and a crushing channel is formed between the first crushing body and the right side wall of the first cavity; a first drive is also provided on one side of the guide plate, so that the size of the crushing channel can be adjusted on the basis of driving the first crushing body to periodically squeeze stones; a fixed plate and a fine crushing structure installed on the fixed plate are also provided in the second cavity, and the fine crushing structure includes a moving arm, a base plate, a driving arm and a second crushing body; the moving arm is vertically distributed, and is connected to the fixed body through an adjusting member The plates are connected to drive the movable arm to move back and forth up and down with a variable amplitude; the base plate is horizontally distributed and fixedly installed at the lower end of the movable arm, the driving arm is rotatably arranged on the base plate, the second crushing body is a frustum-shaped structure, and is fixedly connected to the driving arm; the second crushing body is also provided with a plurality of evenly distributed and annular third crushing bodies, and the outer wall of the third crushing body is also an inclined surface; there is a height difference between the outer wall of the third crushing body and the outer wall of the second crushing body, and the two perform reverse finishing crushing operations at a preset differential speed, wherein the rotation speed of the second crushing body is greater than that of the third crushing body; a vertically distributed discharge channel is provided at the bottom end of the second cavity, and in the initial state, a plug is also adapted to be installed in the discharge channel.

[0007] In order to ensure the stability of the box operation and the smoothness of stone feeding, as an optimal technical solution: support legs are also provided at the bottom of the box; and a feeding hopper is connected to the left side of the box.

[0008] In order to ensure that the deflection and rotation of the guide plate drives the first crushing body to perform coarse crushing, a further preferred technical solution is that the guide plate and the side wall of the first chamber are rotationally connected via a fixed shaft.

[0009] In order to achieve high-frequency periodic reciprocating movement of the first crushing body and the purpose of squeezing and crushing large-size stones in the crushing channel, as an optimal technical solution: the first drive includes a rotating structure, wherein the rotating structure also includes a fixed seat, a first motor, a transmission member, a rotating shaft and a rotating disk; the fixed seat is horizontally distributed and arranged below the guide plate, and the cross-section of the fixed seat is a concave structure; the first motor is fixedly installed on the fixed seat through a bracket; the rotating shaft extends forward and backward and is rotatably installed on the fixed seat; the first motor drives the rotating shaft to rotate through the transmission member; the rotating disk is arranged on the rotating shaft, and is evenly distributed in multiple numbers, the rotating disk is an elliptical structure, and always keeps in contact with the first crushing body.

[0010] A further preferred technical solution: the transmission member includes a main gear and a sub-gear; the main gear is sleeved and installed on the output shaft of the first motor, and the sub-gear is sleeved and installed on the rotating shaft, and the main gear and the sub-gear are kept matched and installed.

[0011] In order to adjust the gap size of the crushing channel for coarse crushing of stones and meet the requirements of different crushing particle sizes of stones in the coarse crushing stage, a further preferred technical solution is: the first drive also includes a moving structure, wherein the moving structure includes side wing plates, guide rods, rotating screws, and a second motor; the side wing plates are distributed and installed in the first cavity in a front-back manner, and are located on the right side of the fixed seat and the left side of the crushing channel; the guide rods are two symmetrically distributed front-back, and one end is connected to the side wall of the first cavity and the other end is connected to the side wing plate; the rotating screw is distributed left and right and is located in the middle of the two guide rods, and the left end extends to the outside of the first cavity and the right end is connected to the side wing plate through a bearing; the second motor is arranged on the box through a bracket and is connected to the rotating screw; the fixed seat maintains a threaded connection with the rotating screw and a sliding connection with the guide rod.

[0012] In order to better realize the periodic up and down movement of the second crushing body and complete the hammering operation with variable amplitude at the same time, a further preferred technical solution is: the adjusting part includes an adjusting motor, a central shaft, and an adjusting disk; the adjusting motor is installed on the fixed plate through a bracket, one end of the central shaft is connected to the adjusting motor, and the other end is connected to the adjusting disk, and a limiting groove is also provided on the adjusting disk, and the shape of the limiting groove is either elliptical or cam-shaped; the top of the moving arm passes through the fixed plate, and a limiting block is also provided on one side of the moving arm, and the limiting block is kept matched with the limiting groove.

[0013] A further preferred technical solution: a rotating structure is provided on one side of the base plate, and the rotating structure includes a rotating motor, a main wheel, and a secondary wheel; the rotating motor is arranged on the base plate, the main wheel is sleeved and installed on the output shaft of the rotating motor, and the secondary wheel is sleeved and installed on the driving arm, and the main wheel and the secondary wheel are kept in meshing transmission.

[0014] In order to enhance the effect of fine sampling stone crushing and effectively meet the particle size requirements for sampling material inspection, testing and analysis, a further preferred technical solution is as follows: the third crushing bodies are three distributed at intervals up and down, and are all connected and fixed to the centrally distributed connecting shaft; the connecting shaft is coaxially arranged in the driving arm, and the top end is kept relatively rotatable and not relatively movable with the fixed plate through a keyway; at the same time, the connecting shaft and the driving arm are also kept relatively rotatable and not relatively movable.

[0015] A further preferred technical solution: the main wheel includes a first wheel and a second wheel; the first wheel and the secondary wheel maintain meshing transmission; a transmission shaft is also provided on one side of the base plate, a transmission wheel is provided on the transmission shaft, and a third wheel is also sleeved and installed on the connecting shaft; and the second wheel, the transmission wheel and the third wheel maintain meshing transmission; and the diameter of the first wheel is kept larger than the diameter of the secondary wheel; the diameter of the second wheel is smaller than the diameter of the first wheel, and the diameter of the second wheel is equal to the diameter of the transmission wheel and smaller than the diameter of the third wheel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the crushing device has a reasonable structural design and adopts a split combination structure. On the basis of the same crushing efficiency, the volume is reduced by 30% compared with the traditional crushing structure, which further improves the utilization rate of the crushing space; at the same time, the fixed seat, the first motor, the transmission part, the rotating shaft and the rotating disk and the first crushing body are adopted to realize the high-frequency extrusion and crushing operation of the larger particle size stone sampling material, which is the coarse crushing stage of the present invention; at the same time, the second crushing body and the third crushing body are further designed as an integrated structure, which optimizes the operation mode of the crushing body and realizes the reprocessing of the coarse crushed stone material; the present invention adopts the diversified and efficient crushing operation mode of extrusion-hammering-differential grinding, which effectively meets the particle size requirements for inspection, detection and analysis of the sampling material, and provides a strong foundation for the subsequent standardization of groundwater engineering sampling work to ensure the accuracy and reliability of the sampling data. It is highly practical and effectively avoids the phenomenon that the sampled stone is not crushed to the standard, which is not conducive to detection and analysis, and has a large market application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic structural diagram of the first crushing body of the present invention; Figure 4 This is a structural diagram of the first driver of the present invention; Figure 5 It is a three-dimensional diagram of the fine crushing structure of the present invention; Figure 6 It is a partial structural front view of the fine crushing structure of the present invention; Figure 7 It is a side view of the local structure of the fine crushing structure of the present invention; Figure 8 for Figure 2 A magnified view of the structure of part A; Figure 9 This is a state diagram of the crushing channel of the present invention becoming smaller; Figure 10 This is a state diagram of the crushing channel of the present invention becoming larger.

[0019] In the figure: 1. Box; 11. First chamber; 12. Second chamber; 13. Guide plate; 14. First crushing body; 15. Crushing channel; 16. Support leg; 17. Feed hopper; 18. Fixed shaft; 2. First drive; 21. Rotating structure; 211. Fixed seat; 212. First motor; 213. Transmission member; 214. Rotating shaft; 215. Rotating disk; 216. Main gear; 217. Sub-gear; 22. Moving structure; 221. Side wing plate; 222. Guide rod; 223. Rotating screw; 224. Second Motor; 3. Fixed plate; 4. Fine crushing structure; 41. Moving arm; 42. Base plate; 43. Driving arm; 44. Second crushing body; 5. Adjusting part; 51. Adjusting motor; 52. Center shaft; 53. Adjusting disk; 54. Limiting groove; 55. Limiting block; 6. Third crushing body; 7. Discharge channel; 71. Plug; 8. Rotating structure; 81. Rotating motor; 82. Main wheel; 821. First wheel; 822. Second wheel; 83. Auxiliary wheel; 84. Connecting shaft; 85. Transmission shaft; 86. Transmission wheel; 87. Third wheel. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that, in the specific embodiments of the present invention, terms such as "first" and "second" and other relational terms that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, terms such as "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the phrase "including one" or other defined elements that may appear does not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0022] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "provided with" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] Example 1: Figures 1 to 10 As shown: A crushing device for groundwater engineering sampling includes a box body 1, which is vertically distributed and can adopt a square cross-section structure. Support legs 16 are also provided at the bottom of the box body 1; the purpose of such a setting is to ensure the stability of the box body 1 during operation. Figure 2 As shown: the left side of the box body 1 is connected to the feed hopper 17, and the guide plate 13 is an inclined distribution structure with the left side higher and the right side lower. The purpose of this arrangement is to ensure the smooth feeding of stones and avoid splashing and hurting people when crushing stones. The inner cavity of the box body 1 is divided into a first cavity 11 and a second cavity 12 from top to bottom; specifically, the cross section of the first cavity 11 is square, and the cross section of the second cavity 12 is circular. In the first cavity 11, there is also an inclined distribution and deflectable rotation guide plate 13, specifically, as shown in FIG. Figure 3 As shown: the guide plate 13 and the side wall of the first cavity 11 are rotationally connected via a fixed shaft 18; the fixed shaft 18 and the guide plate 13 are fixed by welding. At the same time, in order to ensure the lubrication effect of the high-frequency deflection of the guide plate 13, a roller bearing can be arranged between the fixed shaft 18 and the side wall of the first cavity 11 to ensure the rotation effect.

[0024] Reference Figure 3 Structure shown: In this embodiment, the guide plate 13 serves as a carrier for the diversion and coarse crushing stages. At the same time, in order to ensure the orderly and stable transportation of stone materials, a guide bar can be set on the guide plate 13. The guide bars are multiple and evenly spaced, and a material conveying channel is formed between two adjacent guide bars. Figure 2 As shown, a first crushing body 14 is welded to the bottom of the guide plate 13, forming a crushing channel 15 between the first crushing body 14 and the right side wall of the first chamber 11. In a preferred embodiment, a particle protrusion can be provided on one side of the first crushing body 14, and the right side wall of the box body 1 corresponding to the first crushing body 14, as well as the first crushing body 14, are coated with a wear-resistant superhard coating, providing a strong foundation for subsequent stone extrusion and crushing.

[0025] like Figure 2As shown: In this embodiment, the guide plate 13 is further provided with a first drive 2 on one side, so that the size of the crushing channel 15 can be adjusted based on the periodic squeezing of the first crushing body 14. In a preferred embodiment, as Figure 4 As shown: the first drive 2 includes a rotating structure 21, wherein the rotating structure 21 also includes a fixed seat 211, a first motor 212, a transmission member 213, a rotating shaft 214 and a rotating disk 215. The fixed seat 211 is horizontally distributed below the guide plate 13, and the two are not in contact. The cross section of the fixed seat 211 is a concave structure; the first motor 212 is fixedly installed on the fixed seat 211 through a bracket; preferably, the first motor 212 can be a servo-controlled motor. The rotating shaft 214 extends forward and backward and is rotatably installed on the fixed seat 211; the first motor 212 drives the rotating shaft 214 to rotate through the transmission member 213; specifically, as shown Figure 4 As shown, the transmission member 213 includes a main gear 216 and a sub-gear 217. The main gear 216 is sleeved onto the output shaft of the first motor 212, and the sub-gear 217 is sleeved onto the rotating shaft 214, maintaining the mating of the main gear 216 and the sub-gear 217. Multiple, evenly distributed rotating discs 215 are mounted on the rotating shaft 214. Each rotating disc 215 has an elliptical structure and maintains constant contact with the first crushing body 14. In a preferred embodiment, multiple, evenly distributed rotating discs 215 on the rotating shaft 214 are maintained in close contact with the guide plate 13, thereby providing a sufficient and uniform crushing effect.

[0026] The specific operating principle of the coarse crushing stage of the sampled stone material is as follows: The first motor 212 is turned on, driving the main gear 216 to rotate synchronously. Due to the meshing transmission relationship between the main gear 216 and the sub-gear 217, the sub-gear 217 and the rotating shaft 214 begin to rotate as a whole. Consequently, the rotating disk 215 on the rotating shaft 214 also rotates synchronously with the rotating shaft 214. Due to the special structural design of the rotating disk 215, the circular motion of the rotating disk 215 drives the guide plate 13 and the first crushing body 14 to perform high-frequency periodic reciprocating movement. This changes the width of the crushing channel 15 to form a "jaw crusher"-like extrusion crushing structure, thus completing the coarse crushing of the sampled stone.

[0027] like Figure 4As shown in this embodiment, the first drive 2 also includes a movable structure 22, which includes side wing plates 221, guide rods 222, a rotating screw 223, and a second motor 224. The side wing plates 221 are mounted in a front-to-back manner and are located to the right of the fixed base 211 and to the left of the crushing channel 15. This arrangement provides a support base for the guide rods 222 and the rotating screw 223. The guide rods 222 are symmetrically distributed front-to-back, with the left end connected to the left side wall of the first chamber 11 and the right end connected to the side wing plates 221. The specific connection can be fixed by welding. The rotating screw 223 extends left-to-right and is located between the two guide rods 222. The left end extends to the outside of the first chamber 11 and the right end is connected to the side wing plates 221 via a bearing. The second motor 224 is mounted in the housing 1 via a bracket and is connected to the rotating screw 223. The second motor 224 also uses a servo control motor to facilitate precise control and adjustment of the distance. The fixing seat 211 maintains a threaded connection with the rotating screw 223 and a sliding connection with the guide rod 222 .

[0028] Specific working principle: When the width of the crushing channel 15 needs to be adjusted in the initial state, the application scenario is that different degrees of coarse crushing of particle sizes are required. The staff starts the second motor 224 to rotate forward, and the second motor 224 will drive the rotating screw 223 to rotate clockwise. Since a "screw nut" structure is formed between the rotating screw 223 and the fixed seat 211, and the sliding limit of the guide rod 222 is matched, the rotating screw 223 will drive the fixed seat 211 to move right, and the corresponding rotating disk 215 will deflect and move against the guide plate 13, and the width of the initial crushing channel 15 will gradually decrease. Figure 9 This state is mainly suitable for relatively small-sized stone sample materials in the coarse stage crushing operation. On the contrary, the second motor 224 reverses, which will drive the rotating screw 223 to rotate counterclockwise, and the corresponding rotating disk 215 will move left. Since the guide plate 13 and the rotating disk 215 are in surface contact, the width of the initial crushing channel 15 will gradually increase. Figure 10 This state is mainly suitable for the coarse stage crushing of relatively large stone sample materials.

[0029] like Figure 2 As shown: In this embodiment, a fixed plate 3 and a fine crushing structure 4 mounted on the fixed plate 3 are further provided in the second chamber 12. The fixed plate 3 is horizontally distributed and fixed to the side wall of the second chamber 12 on the left side by welding. A gap is left between the right side and the side wall of the second chamber 12 to facilitate the entry of stone materials into the second chamber 12 after the coarse crushing operation of the crushing channel 15. A mesh can be provided on the fixed plate 3 to discharge the crushed stones splashed into the second chamber during crushing. The bottom end of the second chamber 12 is a structure adapted to the second crushing body 44. For details, please refer to Figure 5The structure shown: The fine crushing structure 4 includes a moving arm 41, a base plate 42, a driving arm 43 and a second crushing body 44. The moving arm 41 is vertically distributed and connected to the fixed plate 3 through an adjusting member 5 to drive the moving arm 41 to move up and down with a variable amplitude. Specifically, Figure 7 As shown, the adjusting member 5 comprises an adjusting motor 51, a central shaft 52, and an adjusting disk 53. The adjusting motor 51 is mounted to the fixed plate 3 via a bracket and also utilizes a servo-controlled motor. One end of the central shaft 52 is connected to the adjusting motor 51, and the other end is connected to the adjusting disk 53. The adjusting disk 53 is also provided with a retaining groove 54, which can be elliptical or cam-shaped. This arrangement enables the movable arm 41 to periodically move up and down with variable amplitudes, based on the circular rotation of the adjusting disk 53. With the rotation of the high-frequency motor, the second crushing body 44 can perform a high-frequency hammering operation on the rock material entering the bottom of the second chamber 12. The top end of the movable arm 41 passes through the fixed plate 3, and a retaining block 55 is provided on one side of the movable arm 41, which is secured to the retaining groove 54. A sliding connection is maintained between the movable arm 41 and the fixed plate 3, providing a retaining guide. The base plate 42 is horizontally arranged and fixedly mounted at the lower end of the movable arm 41. The driving arm 43 is rotatably mounted on the base plate 42. The second crushing body 44 is a frustum-shaped structure and is fixedly connected to the driving arm 43. Particle protrusions may also be provided on the second crushing body 44. A wear-resistant superhard material coating is applied to the second crushing body 44, the third crushing body 6, and the bottom wall of the second chamber 12 to enhance the hammering and grinding effect on the rock sample material and extend the service life of the crushing body.

[0030] The specific hammering operation for rock material operates as follows: When a worker activates the adjustment motor 51, it drives the adjustment disk 53 via the central shaft 52 for synchronous rotation. The circular motion of the adjustment disk 53, coupled with the elliptical motion of the stopper 55 (this embodiment uses an elliptical stopper 54 as an example), is combined with the limiting and guiding action of the movable arm 41 and the fixed plate 3. Consequently, the elliptical motion of the stopper 55 drives the movable arm 41 and the second crushing body 44 to perform a high-frequency, periodic, and variable-amplitude up and down movement. This creates a high-frequency hammering operation on the rock material accumulated at the bottom of the second chamber 12, similar to a "garlic pounding in a grooved container," enhancing the fine rock crushing effect.

[0031] In this embodiment, in order to enhance the fine crushing effect of the sampled stone material and effectively achieve the particle size requirements for inspection, testing and analysis of the sampled materials in the groundwater project, a rotating structure 8 is also provided on one side of the base plate 42. The rotating structure 8 includes a rotating motor 81, a main wheel 82, and a secondary wheel 83. The rotating motor 81 is provided on the base plate 42 and is fixedly mounted on the base plate 42 via a bracket. The rotating motor 81 is a servo-controlled motor. The main wheel 82 is sleeved and mounted on the output shaft of the rotating motor 81. The secondary wheel 83 is sleeved and mounted on the drive arm 43, and the main wheel 82 and the secondary wheel 83 are kept in meshing transmission.

[0032] In a preferred embodiment, in the non-starting stage, a sufficiently large downward force is provided to the movable arm 41. Specifically, it is preferred to adopt a structure in which an electric push rod and a locking rod cooperate, a locking groove is synchronously opened on the movable arm 41, one side of the electric push rod is fixedly mounted on the fixed plate 3, and one end of the locking rod is connected and fixed to the electric push rod. In the initial state, the electric push rod is retracted, the locking rod has no interference with the movable arm 41, and the up and down movement of the movable arm 41 is not affected. When the second crushing body 44 starts to perform the grinding operation, the electric push rod is turned on to extend, and the locking rod is kept in the corresponding position to the locking groove, and is matched and installed to lock the position of the second crushing body 44, thereby ensuring the contact between the second crushing body 44 and the stone material and the crushing effect of extrusion and grinding.

[0033] Regarding the specific operating principle of stone material grinding: During simulation and experimental stages, our staff discovered that, since hammering is a high-frequency motion and grinding can be a low-speed rotation operation, the two can be operated alternately or simultaneously. In this embodiment, to balance the use of the crushing body and the hammering-grinding effect on the stone, staff recommend alternating operations. Initially, the second crushing body 44 descends to a low position, creating an impact with the stone material. Stone material is distributed on the bottom and sides of the second crushing body 44. Staff activate the rotating motor 81, which drives the main wheel 82 to rotate synchronously. The meshing transmission between the main wheel 82 and the secondary wheel 83 drives the secondary wheel 83, the drive arm 43, and the second crushing body 44 to rotate as a whole, achieving a deep and refined grinding and comminution effect on the stone material by the second crushing body 44. The present invention adopts a diversified and efficient crushing operation mode of extrusion-hammering-differential grinding, which effectively meets the particle size requirements for inspection, testing and analysis of sampling materials, provides a strong foundation for subsequent standardization of groundwater engineering sampling work, and ensures the accuracy and reliability of sampling data. It is highly practical and effectively avoids the phenomenon of sampling stones not being crushed to standard, which is not conducive to detection and analysis. It has great market application prospects.

[0034] like Figure 2As shown: In this embodiment, a vertically distributed discharge channel 7 is provided at the bottom end of the second cavity 12. In the initial state, a plug body 71 is also adapted to be installed in the discharge channel 7. The top end of the plug body 71 is flush with the bottom end of the second cavity 12 to ensure the hammering-grinding processing effect of the stone material. Specifically, the outer end of the plug body 71 can be connected and fixed to the box body 1 by bolts, and a rubber sealing ring is added to form a stable connection.

[0035] Example 2: Based on Example 1, Figure 2 、 Figure 5 and Figure 8 As shown: A crushing device for groundwater engineering sampling, further comprising: a plurality of evenly distributed and annular third crushing bodies 6 are provided in the second crushing body 44, and the third crushing bodies 6 are provided in the gaps between the protruding particles on the adjacent second crushing bodies 44. The purpose of such a setting is to provide a refined crushing purpose through deep grinding. The outer wall of the third crushing body 6 is also an inclined surface. There is a height difference between the outer wall of the third crushing body 6 and the outer wall of the second crushing body 44, and the two perform reverse finishing crushing operations at a preset differential speed. The purpose of such a setting is to improve the grinding and crushing effect of the stone crushing material. The rotation speed of the second crushing body 44 is greater than the rotation speed of the third crushing body 6; the purpose of such a setting is to form a reverse push for the material, reduce the phenomenon of material scattering after the rough crushing of the stone, and thus ensure the grinding effect of the material. In a preferred embodiment, the third crushing bodies 6 are three distributed at intervals in the upper and lower parts, and are all connected and fixed to the connecting shaft 84 provided in the center; specifically, this can be achieved by welding. The connecting shaft 84 is coaxially disposed within the driving arm 43, and its top end engages with the fixed plate 3 via a keyway to maintain relative rotation but not relative movement. The keyway also maintains relative rotation but not relative movement between the connecting shaft 84 and the driving arm 43. The length of the connecting shaft 84 is greater than the designed length of the driving arm 43.

[0036] like Figure 5 and Figure 6As shown in this embodiment, the main wheel 82 includes a first wheel 821 and a second wheel 822, wherein the first wheel 821 is meshed with the secondary wheel 83. The secondary wheel 83 is mounted on the drive arm 43, driving the drive arm 43 and the second crushing body 44 to rotate synchronously. A transmission shaft 85 is also provided on one side of the base plate 42, and the two are fixed by welding. A transmission wheel 86 is mounted on the transmission shaft 85, and a third wheel 87 is also mounted on the connecting shaft 84. The second wheel 822, the transmission wheel 86, and the third wheel 87 are meshed with each other. Specifically, the second wheel 822 drives the transmission wheel 86 to rotate, which in turn drives the third wheel 87 to rotate. The diameter of the first wheel 821 is maintained larger than that of the secondary wheel 83. This achieves an "accelerated" rotational speed of the secondary wheel 83 and the second crushing body 44. The diameter of the second wheel 822 is smaller than that of the first wheel 821. The diameter of the second wheel 822 is equal to the diameter of the transmission wheel 86 and smaller than the diameter of the third wheel 87. This reduces the rotational speed of the third wheel 87 and the third crushing body 6. This allows the second crushing body 44 to function as the primary grinding drive, while the third crushing body 6 functions as the secondary grinding drive, significantly improving the fine processing of stone materials.

[0037] Specific working principle: When the rotating motor 81 is activated, it drives the first wheel 821 and the second wheel 822 to rotate synchronously. Taking the clockwise rotation of the first and second wheels 821, 822 as an example, the first and second wheels 821, 822 have the same rotation speed. The clockwise rotation of the first wheel 821 drives the auxiliary wheel 83 to rotate counterclockwise. In other words, the rotation of the first wheel 821 drives the auxiliary wheel 83, the driving arm 43, and the second crushing body 44 to rotate counterclockwise, creating a crushing and grinding effect on the material. The clockwise rotation of the second wheel 822 drives the transmission wheel 86 to rotate counterclockwise. The counterclockwise rotation of the transmission wheel 86 drives the third wheel 87 to rotate clockwise. In other words, the second wheel 822 drives the third wheel 87, the connecting shaft 84, and the third crushing body 6 to rotate clockwise, creating a reverse crushing and grinding effect on the material. At the same time, due to the design of the gear size, the second crushing body 44 is controlled as the main drive for high-speed grinding, and the third crushing body 6 is controlled as the auxiliary drive for low-speed grinding in a differential operation mode of increase and decrease, which greatly improves the crushing effect of the sampled stones.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crushing device for groundwater engineering sampling, characterized by: The invention comprises a box body, which is vertically distributed, and the inner cavity of the box body is divided into a first cavity and a second cavity from top to bottom; a guide plate which is obliquely distributed and can be deflected and rotated is also provided in the first cavity, and a first crushing body is welded and installed at the bottom of the guide plate, and a crushing channel is formed between the first crushing body and the right side wall of the first cavity; a first drive is also provided on one side of the guide plate, so that the size of the crushing channel can be adjusted on the basis of driving the first crushing body to periodically squeeze the stones; a fixed plate and a fine crushing structure installed on the fixed plate are also provided in the second cavity, and the fine crushing structure includes a moving arm, a base plate, a driving arm and a second crushing body; the moving arm is vertically distributed and connected to the fixed plate by an adjusting member to drive the moving arm The movable arm moves back and forth up and down with a variable amplitude; the base plate is horizontally distributed and fixedly installed at the lower end of the movable arm, the driving arm is rotatably arranged on the base plate, the second crushing body is a frustum-shaped structure, and is fixedly connected to the driving arm; a plurality of evenly distributed and annular third crushing bodies are also provided in the second crushing body, and the outer wall of the third crushing body is also an inclined surface; there is a height difference between the outer wall of the third crushing body and the outer wall of the second crushing body, and the two perform reverse finishing crushing operations at a preset differential speed, wherein the rotation speed of the second crushing body is greater than that of the third crushing body; a vertically distributed discharge channel is provided at the bottom end of the second cavity, and in the initial state, a plug is also adapted to be installed in the discharge channel.

2. A groundwater engineering sampling crushing device according to claim 1, characterized in that: Support legs are also provided at the bottom of the box body; a feed hopper is connected and installed on the left side of the box body.

3. A groundwater engineering sampling crushing device according to claim 2, characterized in that: The guide plate is rotationally connected to the side wall of the first cavity via a fixed shaft.

4. A groundwater engineering sampling crushing device according to claim 1, characterized in that: The first drive includes a rotating structure, wherein the rotating structure also includes a fixed base, a first motor, a transmission member, a rotating shaft and a rotating disk; the fixed base is horizontally distributed and arranged below the deflector, and the cross-section of the fixed base is a concave structure; the first motor is fixedly mounted on the fixed base through a bracket; the rotating shaft extends forward and backward and is rotatably mounted on the fixed base; The first motor drives the rotating shaft to rotate through the transmission member; the rotating disks are arranged on the rotating shaft and are evenly distributed in a plurality of numbers. The rotating disks are of elliptical structure and are always kept in contact with the first crushing body.

5. A groundwater engineering sampling crushing device according to claim 4, characterized in that: The transmission member includes a main gear and a sub-gear; the main gear is sleeved and installed on the output shaft of the first motor, and the sub-gear is sleeved and installed on the rotating shaft, and the main gear and the sub-gear are kept matched and installed.

6. A groundwater engineering sampling crushing device according to claim 5, characterized in that: The first drive also includes a moving structure, wherein the moving structure includes side wing plates, guide rods, rotating screws, and a second motor; the side wing plates are distributed and installed in the first cavity in a front-back extending manner, and are located on the right side of the fixed seat and the left side of the crushing channel; the guide rods are two symmetrically distributed front-back, and one end is connected to the side wall of the first cavity and the other end is connected to the side wing plates; the rotating screw is distributed left and right and is located in the middle of the two guide rods, and the left end extends to the outside of the first cavity and the right end is connected to the side wing plates through a bearing; the second motor is arranged in the box through a bracket and is connected to the rotating screw; the fixed seat maintains a threaded connection with the rotating screw and a sliding connection with the guide rod.

7. A groundwater engineering sampling crushing device according to claim 1, characterized in that: The adjusting part includes an adjusting motor, a central shaft, and an adjusting disk; the adjusting motor is installed on a fixed plate through a bracket, one end of the central shaft is connected to the adjusting motor, and the other end is connected to the adjusting disk, and a limiting groove is also provided on the adjusting disk, and the shape of the limiting groove is either an elliptical shape or a cam shape; the top end of the movable arm passes through the fixed plate, and a limiting block is also provided on one side of the movable arm, and the limiting block is kept matched with the limiting groove and installed.

8. A groundwater engineering sampling crushing device according to claim 7, characterized in that: A rotating structure is provided on one side of the base plate, and the rotating structure includes a rotating motor, a main wheel, and a secondary wheel; the rotating motor is arranged on the base plate, the main wheel is sleeved and installed on the output shaft of the rotating motor, and the secondary wheel is sleeved and installed on the driving arm to keep the main wheel and the secondary wheel engaged for transmission.

9. A groundwater engineering sampling crushing device according to claim 8, characterized in that: The three third crushing bodies are distributed in an upper and lower interval, and are all connected and fixed to the connecting shaft distributed in the center; the connecting shaft is coaxially arranged in the driving arm, and the top end is matched with the fixed plate through a keyway to maintain relative rotation but not relative movement; at the same time, the connecting shaft and the driving arm can also maintain relative rotation but not relative movement.

10. A groundwater engineering sampling crushing device according to claim 9, characterized in that: The main wheel includes a first wheel and a second wheel; the first wheel and the secondary wheel maintain meshing transmission; a transmission shaft is also provided on one side of the base plate, a transmission wheel is provided on the transmission shaft, and a third wheel is also sleeved and installed on the connecting shaft; and the second wheel, the transmission wheel and the third wheel maintain meshing transmission; and the diameter of the first wheel is kept larger than the diameter of the secondary wheel; the diameter of the second wheel is smaller than the diameter of the first wheel, and the diameter of the second wheel is equal to the diameter of the transmission wheel and smaller than the diameter of the third wheel.

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