Stone crushing device for geological survey

Abstract

The utility model relates to the technical field of geological exploration, and discloses a stone crushing device for geological exploration, which comprises a mounting seat, a revolution assembly, an autorotation assembly and a transmission adjusting assembly, and the revolution assembly comprises a main shaft and a revolution disc which are fixedly arranged with each other; the autorotation assembly is mounted on the revolution assembly and rotates along with the revolution assembly, and comprises a crushing mechanism, and the crushing mechanism is rotationally arranged on a revolution disc; the transmission adjusting assembly can adjust the transmission ratio between the revolution assembly and the rotation assembly. According to the utility model, the revolution assembly drives the three groups of cutting drill bits to revolve around the central axis, meanwhile, the power of the main shaft is transmitted to the rotation driving mechanism to form the composite motion of revolution and rotation, and the transmission adjusting assembly can change the transmission ratio of revolution and rotation speed; the working mode of the device can be optimized according to parameters such as rock hardness and brittleness, and the device can adapt to rock layers with high hardness or complex structures so as to adapt to complex and changeable geological conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a gravel device for geological exploration. Background Art

[0002] During geological exploration, it is necessary to drill the rock formation to obtain geological samples and conduct subsequent analysis. As geological exploration work expands into deeper and more complex geological environments, higher requirements are put forward for the adaptability, crushing effect, and working efficiency of the gravel device.

[0003] In actual geological exploration operations, the properties of rocks vary greatly, and parameters such as the hardness and brittleness of rocks change significantly in different regions and at different depths. Traditional crushing devices adopt a fixed motion mode and rely only on a single rotation or impact method to crush rocks, making it difficult to flexibly adjust according to the hardness, structure, and other characteristics of rocks under different geological conditions. As a result, when facing rocks with high hardness or complex structures, the crushing efficiency is low. Therefore, in order to meet the exploration requirements under complex geological conditions, a gravel device for geological exploration is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that traditional crushing devices adopt a fixed motion mode and rely only on a single rotation or impact method to crush rocks, and cannot flexibly handle rocks with large property differences, resulting in low crushing efficiency. A gravel device for geological exploration is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A gravel device for geological exploration, comprising:

[0006] A mounting base; and

[0007] A revolution component, which includes a main shaft and a revolving turntable fixedly arranged with each other, and the main shaft and the revolving turntable are both rotatably connected within the mounting base;

[0008] A rotation component, which is installed on the revolution component and rotates together with the revolution component. It includes a rotation drive mechanism and a crushing mechanism. The crushing mechanism is arranged in an annular array of three groups with the axis of the revolving turntable as the center. The crushing mechanism is rotatably arranged on the revolving turntable. Each group of the crushing mechanism includes a cutting drill bit for crushing.

[0009] A transmission adjustment component, which includes a first adjustment structure and a second adjustment structure connected by a transmission belt. The first adjustment structure is connected to the revolution component, and the second adjustment structure is connected to the rotation component to drive the rotation component to rotate on the revolution component.

[0010] In this way, the revolving plate of the revolving component can drive the three groups of cutting bits to revolve, and the driving force of the revolving component can drive the three groups of cutting bits to rotate simultaneously through the transmission of the transmission adjustment component, converting the single driving force on the revolving component into the combined revolving and rotating motion of the three hollow shafts, which can quickly cut and break through the rock formation and improve the crushing efficiency during geological exploration.

[0011] Moreover, the transmission ratio can be adjusted between the first adjustment structure and the second adjustment structure, changing the transmission ratio between the revolving speed of the revolving component and the rotating speed of the rotating component. When facing a rock formation with obvious changes in parameters such as rock hardness and brittleness, the proportion of the rotating speed and revolving speed of the cutting bits can be adjusted to adapt to the changes in rock parameters, improving the adaptability of the device. When facing rocks with higher hardness or complex structures, the crushing efficiency of the device can be improved.

[0012] As a further description of the above technical solution:

[0013] The rotation driving mechanism includes a hollow shaft and a second gear that are coaxial and fixedly connected to each other. The hollow shaft rotates within the mounting seat and is sleeved outside the main shaft;

[0014] The second adjustment structure is arranged on the hollow shaft to drive the hollow shaft to rotate.

[0015] As a further description of the above technical solution:

[0016] The crushing mechanism further includes a first connecting shaft and a second connecting shaft that rotate on the revolving component. The first connecting shaft and the second connecting shaft are connected by a universal coupling. The cutting bit is fixed to one end of the first connecting shaft, and a third gear is fixedly connected to one end of the second connecting shaft. The third gear is meshed and connected to the second gear.

[0017] As a further description of the above technical solution:

[0018] The revolving component further includes a chassis fixedly connected to the revolving plate. A collection structure is fixedly arranged between the revolving plate and the chassis;

[0019] A bearing frame is fixed on the outer circumference of the chassis.

[0020] As a further description of the above technical solution:

[0021] The first connecting shaft is rotatably arranged on the bearing frame, and the second connecting shaft is rotatably arranged on the revolving plate.

[0022] As a further description of the above technical solution:

[0023] The first adjustment structure includes a second fixed conical disk fixed on the hollow shaft and a driving conical disk sliding on the hollow shaft. The first adjustment structure further includes a driving hydraulic cylinder provided with a driving part for driving the driving conical disk to move along the axial direction of the hollow shaft.

[0024] As a further description of the above technical solution:

[0025] The first adjustment structure includes a rotating shaft rotatably installed inside the mounting seat. The rotating shaft is fixedly provided with a first fixed conical disk and a tensioning conical disk capable of sliding along the rotating shaft.

[0026] The first adjustment structure further includes a pressing hydraulic cylinder provided with a pressing part for pushing the tensioning conical disk towards the first fixed conical disk.

[0027] The inner sides of the transmission belts are respectively installed between the tensioning conical disk and the first fixed conical disk, and between the second fixed conical disk and the driving conical disk for transmission between the rotating shaft and the first fixed conical disk.

[0028] As a further description of the above technical solution:

[0029] A fourth gear is fixedly provided on the rotating shaft, and a first gear is fixedly provided on the main shaft. The fourth gear is meshed and connected with the first gear.

[0030] As a further description of the above technical solution:

[0031] The collection structure includes a storage barrel fixed between the male turntable and the chassis. A closing plate is rotatably provided on the storage barrel. The closing plate can rotate within a range of sixty degrees in the vertical direction. The closing plate is connected to the storage barrel through a torsion spring.

[0032] The present utility model has the following beneficial effects:

[0033] 1. In the present utility model, the three cutting drills are driven by the revolution assembly to revolve around the central axis. At the same time, the power of the main shaft is transmitted to the self-rotation driving mechanism to realize the synchronous self-rotation of the cutting drills, forming a compound movement of revolution and self-rotation. Compared with the traditional single crushing method, it can cut and break different structural rock formations more quickly, effectively improving the crushing efficiency in geological exploration.

[0034] 2. In the present utility model, the transmission adjustment assembly can change the transmission ratio of the revolution and self-rotation speeds by changing the transmission radius, enabling the device to optimize the working mode according to parameters such as rock hardness and brittleness, adopting different self-rotation and revolution ratios for rocks with different hardnesses, and being able to adapt to rock layers with higher hardness or complex structures, thus adapting to complex and changeable geological conditions. Description of the Drawings

[0035] Figure 1 Structural schematic diagram of a gravel device for geological exploration proposed by the present utility model;

[0036] Figure 2 Internal structural schematic diagram of a gravel device for geological exploration proposed by the present utility model;

[0037] Figure 3 Structural schematic diagram of the revolution component;

[0038] Figure 4 Structural schematic diagram of the rotation component;

[0039] Figure 5 Structural schematic of the transmission adjustment component Figure 1 ;

[0040] Figure 6 Structural schematic of the transmission adjustment component Figure 2 ;

[0041] Figure 7 Partial structural schematic diagram of the transmission adjustment component;

[0042] Figure 8 Internal structural schematic diagram of the collection structure.

[0043] Legend description:

[0044] 1. Revolution component; 11. Main shaft; 12. Revolution disc; 13. Gear 1; 14. Chassis; 15. Bearing frame;

[0045] 2. Rotation component; 21. Rotation drive mechanism; 22. Crushing mechanism; 211. Hollow shaft; 212. Gear 2; 221. Cutting drill bit; 222. Connecting shaft 1; 223. Universal coupling; 224. Connecting shaft 2; 225. Gear 3;

[0046] 3. Transmission adjustment component; 31. First adjustment structure; 32. Second adjustment structure; 311. Fixed cone disc 1; 312. Tensioning cone disc; 313. Compression hydraulic cylinder; 314. Compression part; 315. Rotating shaft; 316. Gear 4; 321. Fixed cone disc 2; 322. Driving cone disc; 323. Driving hydraulic cylinder; 324. Driving part; 325. Telescopic head; 33. Transmission belt;

[0047] 4. Collection structure; 41. Storage barrel; 42. Closing plate; 43. Torsion spring; 421. Baffle part; 422. Weight increasing part; 5. Mounting seat. Specific implementation method

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] To solve the problem that traditional crushing devices cannot adjust crushing parameters according to rock properties, in the embodiments of this application, a gravel device for geological exploration is designed, which includes a mounting base 5, a revolution component 1, a rotation component 2, and a transmission adjustment component 3. The revolution component 1 includes a main shaft 11 and a revolving disk 12 that are fixedly arranged with each other. Both the main shaft 11 and the revolving disk 12 are rotatably connected within the mounting base 5.

[0050] The rotation component 2 is installed on the revolution component 1 and rotates together with the revolution component 1. It includes a rotation driving mechanism 21 and a crushing mechanism 22. The crushing mechanism 22 is arranged in an annular array of three groups with the axis of the revolving disk 12 as the center. The crushing mechanism 22 is rotatably arranged on the revolving disk 12. Each group of the crushing mechanism 22 includes a hollow shaft 211 for crushing.

[0051] The transmission adjustment component 3 includes a first adjustment structure 31 and a second adjustment structure 32 connected by a transmission belt 33. The first adjustment structure 31 is connected to the revolution component 1, and the second adjustment structure 32 is connected to the rotation component 2 to drive the rotation component 2 to rotate on the revolution component 1.

[0052] In this way, the revolving disk 12 of the revolution component 1 can drive the three groups of cutting bits 221 to revolve, and the driving force of the revolution component 1 can drive the three groups of cutting bits 221 to rotate simultaneously through the transmission of the transmission adjustment component 3, converting the single driving force on the revolution component 1 into the combined revolution and rotation motion of the three groups of hollow shafts 211, which can quickly cut and break the rock layer and improve the crushing efficiency during geological exploration.

[0053] Moreover, the transmission ratio between the first adjustment structure 31 and the second adjustment structure 32 can be adjusted to change the transmission ratio between the revolution speed of the revolution component 1 and the rotation speed of the rotation component 2. When facing a rock layer with obvious changes in parameters such as rock hardness and brittleness, the ratio of the rotation speed and revolution speed of the cutting bit 221 can be adjusted to adapt to the change of rock parameters, improving the adaptability of the device. When facing rocks with higher hardness or complex structures, the crushing efficiency of the device can be improved.

[0054] Refer to Figure 1 、 Figure 2 and Figure 4, a rotation assembly 2, which includes a rotation drive mechanism 21 and a crushing mechanism 22 connected to each other. The rotation drive mechanism 21 can drive the crushing mechanism 22 to rotate; when the revolution assembly 1 rotates, it drives the rotation drive mechanism 21 to rotate, and the rotation drive mechanism 21 drives the crushing mechanism 22 to rotate, which can convert the driving force of the revolution assembly 1 into the rotation of the rotation drive mechanism 21, so that while the revolution assembly 1 drives the rotation assembly 2 to revolve, the rotation drive mechanism 21 can rotate.

[0055] The crushing mechanism 22 refers to a mechanism that can damage the rock formation, and it includes at least a cutting drill bit 221. The rotation drive mechanism 21 refers to a mechanism that can drive the crushing mechanism 22 to rotate; in some embodiments;

[0056] The rotation drive mechanism 21 includes a hollow shaft 211 and a second gear 212 that are coaxially and fixedly connected to each other. The hollow shaft 211 rotates in the mounting seat 5 and is sleeved outside the main shaft 11; a second adjustment structure 32 is arranged on the hollow shaft 211 to drive the hollow shaft 211 to rotate; the crushing mechanism 22 further includes a first connecting shaft 222 and a second connecting shaft 224 that rotate on the revolution assembly 1. The first connecting shaft 222 and the second connecting shaft 224 are connected by a universal coupling 223. The cutting drill bit 221 is fixed to one end of the first connecting shaft 222, and a third gear 225 is fixedly connected to one end of the second connecting shaft 224. The third gear 225 is meshed with the second gear 212. The cutting drill bit 221 is inclined, and the cutting drill bit 221 has a crushing groove or crushing teeth (not shown).

[0057] When the hollow shaft 211 rotates, it drives the second gear 212 to rotate. The second gear 212 drives the second connecting shaft 224 to rotate through meshing with the third gear 225. The second connecting shaft 224 drives the first connecting shaft 222 to rotate through the universal coupling 223, thereby driving the cutting drill bit 221 to rotate.

[0058] Refer to Figures 5 - 7 , a transmission adjustment assembly 3, which includes a first adjustment structure 31 and a second adjustment structure 32 connected to each other. A first fixed cone disk 311 and a tensioning cone disk 312 capable of adjusting the distance are arranged on the first adjustment structure 31. A second fixed cone disk 321 and a driving cone disk 322 capable of adjusting the distance are arranged on the second adjustment structure 32. Furthermore, the driving wheel formed by the first fixed cone disk 311 and the tensioning cone disk 312 can change the transmission ratio relative to the driven wheel formed by the second fixed cone disk 321 and the driving cone disk 322;

[0059] In some embodiments, the first adjustment structure 31 includes a second fixed conical disk 321 fixed on the hollow shaft 211 and a driving conical disk 322 slidably disposed on the hollow shaft 211. The first adjustment structure 31 further includes a driving hydraulic cylinder 323, and a driving part 324 is arranged on the driving hydraulic cylinder 323. The driving part 324 is used to drive the driving conical disk 322 to move along the axial direction of the hollow shaft 211; the first adjustment structure 31 includes a rotating shaft 315 rotatably disposed inside the mounting seat 5, and a first fixed conical disk 311 fixedly arranged on the rotating shaft 315 and a tensioning conical disk 312 capable of sliding along the rotating shaft 315; the first adjustment structure 31 further includes a pressing hydraulic cylinder 313, and a pressing part 314 is arranged on the pressing hydraulic cylinder 313. The pressing part 314 is used to push the tensioning conical disk 312 towards the first fixed conical disk 311; the inner sides of the transmission belts 33 are respectively installed between the tensioning conical disk 312 and the first fixed conical disk 311, and between the second fixed conical disk 321 and the driving conical disk 322, for transmission between the rotating shaft 315 and the first fixed conical disk 311.

[0060] The driving part 324 is rotatably connected to the driving conical disk 322 through a telescopic telescopic head 325. Both the driving part 324 and the telescopic head 325 are outside the hollow shaft 211; the driving conical disk 322 is connected to the hollow shaft 211 by a key connection. The driving conical disk 322 can move along the axis on the hollow shaft 211. At the same time, when the driving conical disk 322 rotates, it can drive the hollow shaft 211 to rotate. The tensioning conical disk 312 and the rotating shaft 315 adopt the same connection method.

[0061] When the output end of the driving hydraulic cylinder 323 drives the driving conical disk 322 to change the distance from the second fixed conical disk 321, at the same time, the position of the transmission belt 33 changes. And because the pressing part 314 always applies pressure to the tensioning conical disk 312, the tensioning conical disk 312 and the first fixed conical disk 311 can always press the transmission belt 33 tightly, ensuring the transmission of the transmission belt 33. Furthermore, the transmission radius of the transmission wheel formed by the second fixed conical disk 321 relative to the transmission wheel formed by the first fixed conical disk 311 and the tensioning conical disk 312 is changed, realizing the change of the transmission ratio between the hollow shaft 211 and the rotating shaft 315;

[0062] Refer to Figures 1 - 7 , the revolution assembly 1 further includes a chassis 14 fixedly connected to the revolving disk 12. A collecting structure 4 is fixedly arranged between the revolving disk 12 and the chassis 14; a bearing frame 15 is fixed on the outer circumference of the chassis 14; a fourth gear 316 is fixedly arranged on the rotating shaft 315, and a first gear 13 is fixedly arranged on the main shaft 11. The fourth gear 316 is meshed with the first gear 13;

[0063] When the main shaft 11 rotates, on the one hand, it drives the revolution plate 12 to rotate, so that the three groups of cutting drill bits 221 revolve. At the same time, the main shaft 11 drives the gear 4 316 to rotate through the gear 1 13, and then drives the rotating shaft 315 to rotate. The rotation of the fixed cone disk 1 311 and the tensioning cone disk 312 drives the fixed cone disk 2 321 and the active cone disk 322 to rotate through the transmission belt 33, so that the hollow shaft 211 rotates. The hollow shaft 211 drives the crushing mechanism 22 to rotate through the meshing of the gear 2 212 and the gear 3 225, and then drives the cutting drill bit 221 to rotate.

[0064] At the same time, when the main shaft 11 rotates, the rotating shaft 315 is driven to rotate through the gear 13, the rotation direction of the rotating shaft 315 is opposite to that of the main shaft 11, the hollow shaft 211 and the rotating shaft 315 are transmitted through the transmission belt 33, the rotation direction of the fixed cone disk 1 311 is opposite to that of the main shaft 11, and the hollow shaft 211 and the connecting shaft 2 224 are meshed through the gear 212 and the connecting shaft 2 224, so that the connecting shaft 2 224 and the main shaft 11 The same rotation direction is the same, and then the cutting drill bit 221 can be the same as the rotation direction of the main shaft 11.

[0065] Reference Figure 8 The collecting structure 4 includes a storage barrel 41 fixed between the rotating disk 12 and the chassis 14 , and a closing plate 42 is rotatably provided on the storage barrel 41 . The closing plate 42 can rotate within a range of sixty degrees in the vertical direction, and the closing plate 42 is connected to the storage barrel 41 through a torsion spring 43 .

[0066] The closing plate 42 includes a baffle portion 421 and a weight-added portion 422 for counterweighting. The rotation angle of the closing plate 42 is sixty degrees, and it can rotate from a vertical state to thirty degrees from the horizontal. When the collecting structure 4 rotates along with the revolution assembly 1, the closing plate 42 rotates outward around the torsion spring 43 under the action of centrifugal force, and the crushed rock enters the storage barrel 41 from the bottom of the storage barrel 41. When the device stops rotating, under the elastic action of the torsion spring 43, the closing plate 42 rotates and contracts toward the inside of the storage barrel 41, thereby blocking the crushed rock inside the storage barrel 41.

[0067] In order to more clearly understand the working process of a rock crushing device for geological exploration in the embodiment of the present application, refer to Figures 1 - 8 , a specific embodiment is described below:

[0068] When the device starts, the main shaft 11 drives the male turntable 12 to rotate around the central axis, driving the three groups of cutting drills 221 to revolve synchronously; at the same time, the main shaft 11 drives the rotating shaft 315 to rotate in the opposite direction through the meshing of the first gear 13 and the fourth gear 316. The fixed cone disk one 311 on the rotating shaft 315 and the tensioning cone disk 312 transmit power to the fixed cone disk two 321 and the driving cone disk 322 on the hollow shaft 211 through the transmission belt 33; when the hollow shaft 211 rotates, the second gear 212 on its outer part meshes with the third gear 225 on the crushing mechanism 22, driving the connecting shaft two 224 to drive the cutting drill 221 to rotate self - rotatably through the universal coupling 223. The rotation direction of the cutting drill 221 is the same as the rotation direction of the main shaft 11, that is, the self - rotation direction of the cutting drill 221 is the same as the revolution direction, enhancing the cutting and crushing effect on the rock.

[0069] When dealing with different rock formations, the driving hydraulic cylinder 323 is driven to push the driving cone disk 322 to move axially along the hollow shaft 211, changing the contact radius between the transmission belt 33 and the two cone disks, thereby adjusting the transmission ratio between the hollow shaft 211 and the rotating shaft 315; at the same time, the revolution speed changes relatively because the rotation speed of the main shaft 11 remains unchanged. When the rock hardness is relatively high, the self - rotation speed is increased and the revolution speed is decreased to enhance the cutting efficiency, and at the same time, the damage of the rock to the device is reduced; on the contrary, the self - rotation speed is decreased to optimize the crushing efficiency.

[0070] When the male turntable 12 rotates, the closing plate 42 unfolds outward under the action of centrifugal force, and the crushed rock chips enter the storage barrel 41; when the machine stops, the torsion spring 43 drives the closing plate 42 to reset to close the barrel opening to prevent the debris from scattering.

[0071] Finally, it should be noted that the above - mentioned are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gravel device for geological exploration, characterized in that, Comprising: Mounting base (5); And Revolving component (1), which includes a main shaft (11) and a revolving turntable (12) fixedly arranged with each other, and both the main shaft (11) and the revolving turntable (12) rotate within the mounting base (5); Rotating component (2), the rotating component (2) is installed on the revolving component (1) and rotates together with the revolving component (1), and it includes a rotation driving mechanism (21) and a crushing mechanism (22). The crushing mechanism (22) is arranged in an annular array of three groups with the axis of the revolving turntable (12) as the center. The crushing mechanism (22) is rotatably arranged on the revolving turntable (12). Each group of the crushing mechanism (22) includes a cutting drill bit (221) for crushing; Transmission adjustment component (3), which includes a first adjustment structure (31) and a second adjustment structure (32) connected by a transmission belt (33). The first adjustment structure (31) is connected to the revolving component (1), and the second adjustment structure (32) is connected to the rotating component (2) to drive the rotating component (2) to rotate on the revolving component (1).

2. The gravel device for geological exploration according to claim 1, characterized in that, The rotation driving mechanism (21) includes a hollow shaft (211) and a second gear (212) that are coaxial and fixedly arranged with each other. The hollow shaft (211) rotates within the mounting base (5) and is sleeved outside the main shaft (11); The second adjustment structure (32) is arranged on the hollow shaft (211) to drive the hollow shaft (211) to rotate.

3. The gravel device for geological exploration according to claim 2, wherein The crushing mechanism (22) further includes a first connecting shaft (222) and a second connecting shaft (224) that rotate on the revolving component (1). The first connecting shaft (222) and the second connecting shaft (224) are connected by a universal coupling (223). The cutting drill bit (221) is fixed to one end of the first connecting shaft (222). One end of the second connecting shaft (224) is fixedly connected with a third gear (225), and the third gear (225) is meshed and connected with the second gear (212).

4. The gravel device for geological exploration according to claim 3, characterized in that, The revolving component (1) further includes a chassis (14) fixedly connected to the revolving turntable (12). A collecting structure (4) is fixedly arranged between the revolving turntable (12) and the chassis (14); A bearing frame (15) is fixed on the outer circumference of the chassis (14).

5. The gravel device for geological exploration according to claim 4, characterized in that, The first connecting shaft (222) is rotatably arranged on the bearing frame (15), and the second connecting shaft (224) is rotatably arranged on the revolving turntable (12).

6. The gravel device for geological exploration according to claim 5, wherein, The first adjustment structure (31) includes a second fixed cone disk (321) fixed on the hollow shaft (211) and a driving cone disk (322) sliding on the hollow shaft (211). The first adjustment structure (31) further includes a driving hydraulic cylinder (323). A driving part (324) is arranged on the driving hydraulic cylinder (323), and the driving part (324) is used to drive the driving cone disk (322) to move along the axial direction of the hollow shaft (211).

7. The gravel device for geological exploration according to claim 6, characterized in that, The first adjustment structure (31) includes a rotating shaft (315) rotating inside the mounting base (5). A first fixed cone disk (311) is fixedly arranged on the rotating shaft (315), and a tensioning cone disk (312) that can slide along the rotating shaft (315); The first adjusting structure (31) further includes a pressing hydraulic cylinder (313), and a pressing portion (314) is provided on the pressing hydraulic cylinder (313), and the pressing portion (314) is used to push the tensioning cone disk (312) to move towards the fixed cone disk one (311); The inner side of the transmission belt (33) is installed between the tensioning cone disk (312) and the fixed cone disk one (311) and between the fixed cone disk two (321) and the driving cone disk (322), and is used for transmission between the rotating shaft (315) and the fixed cone disk one (311).

8. The gravel device for geological exploration according to claim 7, characterized in that, A fourth gear (316) is fixedly arranged on the rotating shaft (315), a first gear (13) is fixedly arranged on the main shaft (11), and the fourth gear (316) is meshed and connected with the first gear (13).

9. The gravel device for geological exploration according to claim 8, characterized in that, The collecting structure (4) includes a storage barrel (41) fixed between the male turntable (12) and the chassis (14), a closing plate (42) is rotatably arranged on the storage barrel (41), the closing plate (42) can rotate within a range of sixty degrees in the vertical direction, and the closing plate (42) is connected with the storage barrel (41) through a torsion spring (43).

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