Coring device for geological engineering exploration

Abstract

The utility model provides a coring device for geological engineering exploration, which relates to the technical field of geological exploration soil sampling and comprises a support and a sampling barrel, a lifting frame rotatably connected with the top end of the sampling barrel is penetratingly arranged on the upper surface of the support, and a mounting frame is fixedly connected onto the lifting frame. By arranging the motor, the driving chain wheel, the driven chain wheel, the gearbox, the outer chain wheel, the transmission chain wheel, the screw rod and the lifting frame, the sampling barrel can be driven to rotate by utilizing the motor, and meanwhile, under the matching action of the driving chain wheel and the driven chain wheel, the rotation of an input shaft of the gearbox is realized; through the speed changing effect of the gearbox, the outer chain wheel drives the transmission chain wheel to rotate, then the screw rotates to drive the lifting frame to descend, pressure is applied to the top end of the sampling barrel in the rotating state, and it is guaranteed that the sampling barrel can descend smoothly.

Description

Technical Field

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

[0002] When military wheeled vehicles travel on soft ground, the tires compact the soil on the ground surface and push the soil at the front wheel rim, which creates compaction resistance and bulldozing resistance. Therefore, it is necessary to survey the geology of the route in advance.

[0003] Therefore, a switch welding fixing tool in the prior art has a publication number of CN213916847U. When in use, the support assembly is pressed onto the rock formation, and the conical tip at the lower end of the sliding shaft is pressed onto the rock formation. The coring assembly will fall due to gravity, causing the lower end of the cutting barrel to be pressed toward the rock formation. When coring the rock formation, it is necessary to press the top block to allow the lower end of the sliding shaft to drill into the rock formation. When drilling the rock formation, the driving motor is started to drive the active pulley to pull the transmission belt to drive the driven pulley to rotate, thereby driving the rotating tube inside it to rotate. The rotation of the rotating tube will drive the cutting barrel inside it to rotate, and the lower end of the cutting barrel is pressed toward the rock formation by gravity to realize the coring operation.

[0004] However, the cutting barrel only relies on gravity to perform coring. When the underground rock is hard, the end of the cutting barrel may slip on the rock surface, causing the coring work to be unsmooth. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a coring device for geological engineering exploration.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coring device for geological engineering exploration, including a bracket and a sampling barrel, a lifting frame rotatably connected to the top of the sampling barrel is arranged on the upper surface of the bracket, a mounting frame is fixedly connected to the lifting frame, a motor for driving the sampling barrel to rotate is fixedly connected to the mounting frame, and a gearbox is also fixedly connected to the mounting frame, a driven sprocket and a driving sprocket are respectively fixedly connected to the input shaft of the gearbox and the main shaft of the motor, and an outer sprocket and a transmission sprocket are respectively arranged on the output shaft of the gearbox and the center of the upper surface of the bracket, the driven sprocket and the driving sprocket as well as the outer sprocket and the transmission sprocket are all driven by chains, and a screw rod threadedly penetrating the lifting frame is fixedly connected to the top of the transmission sprocket.

[0007] Preferably, the top edge of the sampling tube is provided with an annular protrusion, the annular protrusion of the sampling tube is clamped on the bottom end of the lifting frame, and a pressure sensor is provided between the protrusion and the lifting frame.

[0008] Preferably, the driven sprocket end surface is fixedly connected with a clamping ring clamped in the mounting frame, and the outer sprocket end surface is rotatably connected to the upper surface of the bracket.

[0009] Preferably, a plurality of hydraulic rods distributed in a circular array are fixedly connected around the bottom edge of the bracket.

[0010] Preferably, a plurality of electric telescopic rods distributed in a circular array are fixedly connected to the top edge of the inner wall of the sampling barrel, a lifting ring is fixedly connected to the telescopic end of the electric telescopic rod, a plurality of plug-ins for separating samples are arranged on the bottom edge of the lifting ring, and a guide frame for guiding the oblique insertion of the plug-ins is fixedly connected to the bottom edge of the inner wall of the sampling barrel.

[0011] Preferably, the plug-in unit is formed by hingedly connecting a plurality of Z-shaped blocks, and the block at one end of the plug-in unit is fixedly connected to the lifting ring, and the block at the other end of the plug-in unit is slidably connected to the inner wall of the guide frame.

[0012] Preferably, of two adjacent building blocks, the building block close to the bottom of the sampling tube swings toward the center line of the sampling tube.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by arranging a motor, a driving sprocket, a driven sprocket, a gearbox, an outer sprocket, a transmission sprocket, a screw and a lifting frame, the motor can be used to drive the sampling tube to rotate. At the same time, under the cooperation of the driving sprocket and the driven sprocket, the gearbox input shaft can rotate. Through the speed change of the gearbox, the outer sprocket drives the transmission sprocket to rotate, and then the screw rotates to drive the lifting frame to descend, and pressure is applied to the top of the rotating sampling tube to ensure that the sampling tube can descend smoothly.

[0015] 2. In the utility model, the electric telescopic rod is extended to enable the lifting ring to drive the plug-in to pass through the guide frame and be inserted into the soil in an oblique manner, while the plug-in that exceeds the guide frame cannot swing downward, thereby supporting the sample inside the sampling tube and preventing the sample in the sampling tube from slipping during the rising process of the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a coring device for geological engineering exploration is proposed for the utility model;

[0017] Figure 2 The utility model proposes a coring device for geological engineering exploration Figure 1 A schematic cross-sectional structure diagram of ;

[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0020] Legend: 1. Sampling tube; 2. Bracket; 3. Hydraulic rod; 4. Lifting frame; 5. Outer sprocket; 6. Screw rod; 7. Block; 8. Mounting frame; 9. Motor; 10. Driving sprocket; 11. Driven sprocket; 12. Gearbox; 13. Pressure sensor; 14. Retaining ring; 15. Drive sprocket; 16. Guide frame; 17. Electric telescopic rod; 18. Lifting ring. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] like Figure 1-4 As shown, a coring device for geological engineering exploration includes a bracket 2 and a sampling tube 1, a lifting frame 4 rotatably connected to the top of the sampling tube 1 is arranged on the upper surface of the bracket 2, a mounting frame 8 is fixedly connected to the lifting frame 4, a motor 9 for driving the sampling tube 1 to rotate is fixedly connected to the mounting frame 8, and a gearbox 12 is also fixedly connected to the mounting frame 8, a driven sprocket 11 and a driving sprocket 10 are fixedly connected to the input shaft of the gearbox 12 and the main shaft of the motor 9, and an outer sprocket 5 and a transmission sprocket 15 are respectively arranged on the output shaft of the gearbox 12 and the center of the upper surface of the bracket 2, the driven sprocket 11 and the driving sprocket 10 as well as the outer sprocket 5 and the transmission sprocket 15 are all driven by chains, and a screw 6 threadedly penetrating the lifting frame 4 is fixedly connected to the top of the transmission sprocket 15.

[0024] In this plan:

[0025] When the motor 9 drives the sampling tube 1 to rotate relative to the lifting frame 4, it will also drive the driving sprocket 10 to rotate. Under the auxiliary effect of the chain, the driven sprocket 11 drives the input shaft of the gearbox 12 to rotate. After the deceleration effect of the gearbox 12, the output shaft of the gearbox 12 drives the outer sprocket 5 to rotate at a speed lower than that of the sampling tube 1, and then the transmission sprocket 15 drives the screw 6 to rotate. The screw 6 is connected to the lifting frame 4 by thread, so that the lifting frame 4 drives the sampling tube 1 to descend, that is, while the motor 9 drives the sampling tube 1 to rotate, it can apply a downward force to the sampling tube 1, ensuring that the sampling tube 1 is not affected by the hardness of the soil at the sampling location;

[0026] Specifically, when the rotation speed of the screw 6 increases, the descending speed of the lifting frame 4 will increase. Because of the reaction force of the soil on the sampling tube 1, the pressure applied by the lifting frame 4 to the sampling tube 1 will increase.

[0027] like Figure 2 and Figure 3 As shown: the top edge of the sampling tube 1 is provided with an annular protrusion, the annular protrusion of the sampling tube 1 is clamped on the bottom end of the lifting frame 4, and a pressure sensor 13 is provided between the protrusion and the lifting frame 4. Specifically, the pressure sensor 13 can detect the reaction force of the soil or rock on the sampling tube 1 in real time during the descent of the sampling tube 1, and according to the size of the reaction force, control the speed ratio of the gearbox 12 to adjust the downward pressure on the sampling tube 1.

[0028] The end face of the driven sprocket 11 is fixedly connected with a retaining ring 14 which is clamped in the mounting frame 8, and the end face of the outer sprocket 5 is rotatably connected to the upper surface of the bracket 2. Specifically, the provided retaining ring 14 ensures the stability of the driven sprocket 11 during rotation. Similarly, the bracket 2 can ensure the stability of the outer sprocket 5 during rotation.

[0029] A plurality of hydraulic rods 3 distributed in a circular array are fixedly connected around the bottom edge of the bracket 2. Specifically, the hydraulic rods 3 can be extended and retracted to support the sides of the bracket 2.

[0030] like Figure 2 and Figure 4 As shown: a plurality of electric telescopic rods 17 distributed in a circular array are fixedly connected to the top edge of the inner wall of the sampling tube 1, a lifting ring 18 is fixedly connected to the telescopic end of the electric telescopic rod 17, a plurality of plug-ins for separating samples are arranged on the bottom edge of the lifting ring 18, and a guide frame 16 for guiding the oblique insertion of the plug-ins is fixedly connected to the bottom edge of the inner wall of the sampling tube 1.

[0031] The plug-in unit is formed by hingedly connecting a plurality of Z-shaped blocks 7 , and the block 7 at one end of the plug-in unit is fixedly connected to the lifting ring 18 , and the block 7 at the other end of the plug-in unit is slidably connected to the inner wall of the guide frame 16 .

[0032] Of the two adjacent blocks 7 , the block 7 close to the bottom of the sampling tube 1 swings toward the center line of the sampling tube 1 .

[0033] In this plan:

[0034] After the coring is completed, the electric telescopic rod 17 is extended to realize the lifting ring 18 to drive the plug-in to pass through the guide frame 16. When the plug-in passes through the guide frame 16, the block 7 on the plug-in will swing toward the center line of the sampling tube 1 and be inserted into the soil in an oblique manner. The plug-in that exceeds the guide frame 16, such as Figure 4 The shape shown prevents the block 7 from swinging downward, thereby supporting the sample inside the sampling tube 1 and preventing the sample inside the sampling tube 1 from sliding off.

[0035] Working principle: The bracket 2 is installed at the sampling location by telescoping the hydraulic rod 3, and the motor 9 drives the sampling tube 1 to rotate, and at the same time drives the driving sprocket 10 to rotate. Under the auxiliary action of the chain, the driven sprocket 11 drives the input shaft of the gearbox 12 to rotate, and the outer sprocket 5 is rotated through the deceleration effect of the gearbox 12, and then the transmission sprocket 15 drives the screw 6 to rotate, so that the lifting frame 4 drives the sampling tube 1 to descend, and exerts a downward force on the sampling tube 1. According to the reading measured by the pressure sensor 13, the speed ratio of the gearbox 12 is controlled by the control means of the prior art, so that when the soil is relatively hard, the downward pressure on the sampling tube 1 is increased, and when the soil is soft, the downward pressure on the sampling tube 1 is reduced.

[0036] The wiring diagram of the hydraulic rod 3, the motor 9, the gearbox 12, the electric telescopic rod 17 and the pressure sensor 13 in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the hydraulic rod 3, the motor 9, the gearbox 12, the electric telescopic rod 17 and the pressure sensor 13 are not explained in detail.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A coring device for geological engineering exploration, comprising a support (2) and a sampling tube (1), characterized in that: The upper surface of the support (2) is penetrated by a lifting frame (4) rotatably connected to the top of the sampling tube (1), the lifting frame (4) is fixedly connected to a mounting frame (8), the mounting frame (8) is fixedly connected to a motor (9) for driving the sampling tube (1) to rotate, and the mounting frame (8) is also fixedly connected to a gearbox (12), the input shaft of the gearbox (12) and the main shaft of the motor (9) are respectively fixedly connected with a driven sprocket (11) and a driving sprocket (10), and the output shaft of the gearbox (12) and the center of the upper surface of the support (2) are respectively provided with an outer sprocket (5) and a transmission sprocket (15), the driven sprocket (11) and the driving sprocket (10) as well as the outer sprocket (5) and the transmission sprocket (15) are all driven by chains, and the top of the transmission sprocket (15) is fixedly connected with a screw rod (6) threadedly penetrating the lifting frame (4).

2. The coring device for geological engineering exploration according to claim 1, characterized in that: The top edge of the sampling tube (1) is provided with an annular protrusion, the annular protrusion of the sampling tube (1) is clamped on the bottom end of the lifting frame (4), and a pressure sensor (13) is provided between the protrusion and the lifting frame (4).

3. The coring device for geological engineering exploration according to claim 1, characterized in that: The end surface of the driven sprocket (11) is fixedly connected to a clamping ring (14) clamped in the mounting frame (8), and the end surface of the outer sprocket (5) is rotatably connected to the upper surface of the bracket (2).

4. The coring device for geological engineering exploration according to claim 1, characterized in that: A plurality of hydraulic rods (3) distributed in a circular array are fixedly connected around the bottom edge of the bracket (2).

5. The coring device for geological engineering exploration according to claim 1, characterized in that: A plurality of electric telescopic rods (17) distributed in a circular array are fixedly connected to the top edge of the inner wall of the sampling tube (1), a lifting ring (18) is fixedly connected to the telescopic end of the electric telescopic rod (17), a plurality of plug-ins for separating samples are arranged on the bottom edge of the lifting ring (18), and a guide frame (16) for guiding the oblique insertion of the plug-ins is fixedly connected to the bottom edge of the inner wall of the sampling tube (1).

6. The coring device for geological engineering exploration according to claim 5, characterized in that: The plug-in unit is formed by hingedly connecting a plurality of Z-shaped blocks (7), wherein the block (7) at one end of the plug-in unit is fixedly connected to a lifting ring (18), and the block (7) at the other end of the plug-in unit is slidably connected to the inner wall of a guide frame (16).

7. The coring device for geological engineering exploration according to claim 6, characterized in that: Of the two adjacent building blocks (7), the building block (7) close to the bottom of the sampling tube (1) swings toward the center line of the sampling tube (1).

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