Ice drill coring equipment for exploration and working method thereof

Abstract

The invention discloses ice drill coring equipment for exploration and a working method thereof.The ice drill coring equipment comprises a crawler trolley, a lifting machine is installed on the crawler trolley, a coring mechanism is installed on the lifting machine, the coring mechanism comprises a fixed sleeve, the outer side of the fixed sleeve is sleeved with a coring barrel, and a limiting rod is embedded in the inner side wall of the coring barrel; a first mounting groove is formed in the inner side of the limiting rod, a limiting top block is mounted in the first mounting groove and hinged to the inner wall of the first mounting groove through a supporting rotating shaft, a limiting sliding groove is formed in the position, close to the lower end of the limiting top block, of the supporting rotating shaft and the position, close to the axis of the coring cylinder, of the surface of the side, close to the axis of the coring cylinder, of the limiting rod, and a limiting sliding plate is slidably embedded in the limiting sliding groove; and a limiting through hole is formed in the limiting sliding plate, and the limiting ejection block is limited through the limiting through hole and an inner cavity structure of the first mounting groove, so that the end part of the limiting ejection block is stably propped against the core bodies, and it is ensured that the core bodies are taken out to the ground as many as possible.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, in particular to an ice drill coring device for exploration and a working method thereof. Background Art

[0002] As the types of civil engineering continue to increase, it is usually necessary to explore and measure the basic geological layers, so it is necessary to drill and coring at different locations. When building a winter automobile test site, it is often necessary to build different types of ice and snow roads at different geological locations. Therefore, a device is needed that can not only coring at different geological layers, but also coring with an ice drill on the ice layer.

[0003] The application document with publication number CN106052653A discloses an automated ice breaking and flow measuring platform, including a trolley, on which a heat preservation device for placing a measuring device and a liftable ice drilling device are provided, and a leveling device is provided on the bottom surface of the trolley.

[0004] According to the above patents and prior art, the following questions are obtained: Problem 1: There are often cavities or water bodies under the geological layer. When the core material is located at the bottom of the formation, it is easy for the core barrel to not have enough time to limit the clamping when the side of the core material is separated from the geological layer, resulting in the core falling or being incomplete, making it difficult to obtain it on the ground for research; Problem 2: Since the materials in the geological layer are not necessarily very uniform, the coring barrel often experiences unavoidable vibration or shaking during the coring process, resulting in incomplete core structure and interference with subsequent research; Question 3: When obtaining ice cores, the ice layer is often very tightly condensed, and the drilling hole size is limited during the core drilling process, making it difficult to drill and cut the core simultaneously. As a result, the drilled ice core cannot be separated from the ice layer and removed, making it impossible to obtain the core, delaying subsequent research. Summary of the invention

[0005] The purpose of the present invention is to provide an ice drill coring device for exploration in order to address the above-mentioned problems and shortcomings, thereby improving the overall work efficiency.

[0006] The present invention solves at least one of the following technical problems: (1) The core barrel is not clamped in time, and the drilled core falls off or is incomplete; (2) The coring process often involves disturbances such as shaking, which results in incomplete core structures; (3) The ice layer is very tightly condensed, the drilling hole size is limited, and it is difficult to drill and cut the core simultaneously, resulting in the inability to separate and remove the drilled ice core from the ice layer.

[0007] The objective of the present invention can be achieved through the following technical scheme: an ice drill coring equipment for exploration, comprising a crawler trolley, a lift installed on the crawler trolley, a coring mechanism installed on the lift, the coring mechanism comprising a fixed sleeve, a coring barrel is sleeved on the outer side of the fixed sleeve, a limiting rod is embedded on the inner wall of the coring barrel, a first mounting groove is provided on the inner side of the limiting rod, a limiting top block is installed in the first mounting groove, the limiting top block is hinged to the inner wall of the first mounting groove through a supporting shaft, the supporting shaft is close to the lower end of the limiting top block, a limiting slide groove is provided on the surface of one side of the limiting rod close to the axis of the coring barrel, a limiting slide plate is slidably embedded in the limiting slide groove, and a limiting through hole is provided on the limiting slide plate.

[0008] As a further scheme of the invention, a plurality of limit rods are provided and are evenly distributed at equal angles, a plurality of first mounting grooves are provided and are evenly distributed at equal distances, the limit perforations correspond to the first mounting grooves one by one, a first motor is buried in the top of the fixed sleeve, the rotating shaft of the first motor is vertically downward, a lifting screw is installed at the lower end of the rotating shaft of the first motor, a lifting slider is provided on the threaded sleeve of the lifting screw, a lifting slot is provided on the side wall of the fixed sleeve, a support plate and a second motor are provided on the peripheral movable sleeve of the fixed sleeve, the second motor is below the support plate and fixedly connected thereto, a protrusion is provided on the side wall of the lifting slider and the protrusion passes through the lifting slot and is fixedly connected to the support plate, a transmission drum is installed on the outer periphery of the second motor, and the core taking drum is fixedly connected to the transmission drum.

[0009] As a further solution of the invention, a number of limit push rods are provided below the second motor and around the outer side of the fixed sleeve, and the telescopic ends of the limit push rods are jointly installed with a transmission ring plate, and a first bearing is installed at the lower part of the transmission ring plate. The outer ring of the first bearing is connected to each limit slide plate, and the top of the transmission drum is rotatably connected to the support plate through the second bearing.

[0010] As a further solution of the invention, a connecting block is installed at the lower end of the fixed sleeve, and a plurality of wedge blocks are fixedly connected to the outer periphery of the connecting block. A heating wire is buried in the wedge block, and the power supply line of the heating wire is buried in the side wall of the fixed sleeve.

[0011] As a further solution of the invention, the cross-section of the wedge block is a triangular structure, the lower surface of the wedge block and the lower surface of the connecting block are located in the same plane and remain horizontal, and the lower surface of the wedge block is provided with a plurality of connecting grooves arranged side by side.

[0012] As a further solution of the invention, a triangular guide block is installed on the upper part of the wedge block, and the triangular guide block is fixedly connected to the fixed sleeve. A second mounting groove is opened on the lower part of the side wall of the core taking cylinder, and a slitting knife is installed in the second mounting groove. One end of the slitting knife is elastically hinged to the second mounting groove through an elastic rotating shaft, and a shielding piece is installed on the outside of the second mounting groove and close to the other end of the slitting knife.

[0013] As a further solution of the invention, a spiral blade is arranged around the outer circumference of the core barrel.

[0014] As a further solution of the invention, a lower pressure plate is installed at the movable end of the elevator, and a number of transmission pressure rods connected end to end are provided between the lower pressure plate and the core taking mechanism. A limit plate is provided at the lower part of the elevator and directly below the lower pressure plate. The transmission pressure rod passes through the limit plate, and the outer periphery of the transmission pressure rod is in sliding contact with the limit plate.

[0015] As a further solution of the invention, a third motor is installed at the lower part of the lower pressure plate, and a transmission sleeve is installed at the lower end of the rotating shaft of the third motor and the lower end of each transmission pressure rod. A connecting transmission block is installed at the top of each transmission pressure rod and the top of the fixed sleeve, and the connecting transmission block is correspondingly clamped with the transmission sleeve.

[0016] A working method of an ice drill coring device for exploration comprises the following steps: Step 1: Move the elevator and the coring mechanism on the ice surface by means of a crawler trolley, then the elevator moves the coring mechanism downwards and rotates the ice layer to drill the core; Step 2: The transmission drum is rotated by the second motor to control the rotation speed of the coring drum, and the core body is obtained by rotating the coring drum; Step three: after the core body is separated from the ice layer, the limiting slide plate is moved downward to move the limiting perforation to one side of the limiting top block. Before the limiting perforation moves, the limiting top block maintains a tendency to rotate in the axial direction of the core barrel through the shape of the first mounting groove and the position of the supporting shaft. As the limiting perforation moves downward, the front end of the limiting top block rotates and passes through the limiting perforation and then abuts against the side surface of the core body. Then the limiting slide plate continues to move downward, and the limiting top block is limited by the limiting perforation and the inner cavity structure of the first mounting groove, so that the end of the limiting top block maintains a stable abutment with the core body. When the elevator moves the core taking mechanism upward, the limiting top block forms a clamping structure with the core body. When on the ground, the limiting slide plate is moved upward to block the opening of the first mounting groove through the inner wall of the limiting slide plate, and the limiting top block is reversely rotated and retracted into the first mounting groove, thereby keeping the inner wall of the core barrel unobstructed. Step 4: The lifting screw is rotated by the first motor to push the lifting slider up and down, thereby pressing the core barrel down through the support plate, and the core barrel is kept moving along the axial direction of the fixed sleeve during the coring process through the fixed sleeve, thereby further maintaining the optimal ice breaking rate. At the same time, the height of the obtained core body can be flexibly adjusted through the flexible adjustment of the lifting screw.

[0017] Beneficial effects of the present invention: (1) During the coring process, after the core is separated from the ice layer, the limiting slide plate is moved downward to move the limiting through hole to one side of the limiting top block. Before the limiting through hole is moved, the limiting top block maintains a tendency to rotate toward the axial direction of the coring barrel through the shape of the first mounting groove and the position of the supporting shaft. As the limiting through hole moves downward, the front end of the limiting top block rotates and passes through the limiting through hole and then abuts against the side of the core. Then the limiting slide plate continues to move downward, and the limiting top block is limited by the limiting through hole and the inner cavity structure of the first mounting groove, so that the end of the limiting top block maintains a stable abutment with the core. When the elevator moves the coring mechanism upward, the limiting top block forms a clamping structure with the core, thereby ensuring that as many cores as possible are taken out to the ground; (2) When working, the wedge block and the electric heating wire cooperate with the core barrel, and the heat of the electric heating wire is used to melt the top surface of the ice layer to be cored, so that the lower surface of the wedge block and the connecting block is embedded in the ice layer, and then the electric heating is stopped, so that the wedge block forms a limiting component to ensure the stable state of the fixed sleeve and improve the stability of the rotation process of the core barrel. When the core barrel stops rotating, the melted ice water refreezes with the coldness of the ice layer itself and is frozen and connected with the wedge block, thereby further making the acquisition of the core more secure, so as to facilitate the lifting and acquisition of the core. The retrieval process is simple and efficient. The connection complexity with the surface of the ice layer is increased by the connecting groove, so that the fixed sleeve is further tightly connected to the core through the wedge block; (3) During operation, the first bearing is used to avoid interference, and the limit slide plate rotates synchronously with the coring barrel. Through the up and down movement of the first bearing, each limit slide plate is adjusted to move up and down at the same time, so as to control the rotation and retraction of the limit top block. Through the synchronous operation of the limit push rod, the limit slide plate can be flexibly adjusted to ensure that the limit top block stably abuts against the side of the core body, and the inertia of the core body when being moved upward is further used to make the limit top block abut against the core body, thereby ensuring that the core body is fully taken out, and through the common abutment and limiting of the limit top block, the core body is prevented from hanging in the air below during coring, causing the core body to fall off, thereby ensuring the complete acquisition of the core body and preventing the core body from falling into a cavity, underground lake or other environment that is difficult to collect; (4) When moving, the slitting knife is first guided by the triangular guide block to prevent the slitting knife from being interfered with by the connecting block. When the coring work is completed, the coring barrel is rotated in the opposite direction but does not move downward. The tip of the slitting knife maintains pressure on the side of the core body under the action of the elastic shaft and generates a slitting force until the slitting knife completes the slitting and separation of the core body and the material layer, thereby increasing the speed of core acquisition and improving the integrity and aesthetics of the core body's appearance for subsequent research; (5) The spiral blade rotates synchronously with the coring barrel to promote the downward movement of the coring barrel for coring, and at the same time assists in discharging the generated debris to the ground or the support plate as it rotates. By continuously increasing the number of transmission pressure rods, a deeper core body can be obtained. The corresponding engagement of the transmission sleeve and the connecting transmission block shortens the time consumption for deep coring, and facilitates rapid assembly. When the connecting block and the wedge block abut against the upper end of the core body, the third motor rotates the transmission pressure rod, driving the fixed sleeve, the connecting block and the wedge block to rotate, and utilizing the wedge structure of the wedge block to push the debris on the top of the core body upward, so that the connecting block abuts against the main top of the core body, thereby eliminating the debris's obstruction to the acquisition of the core body, promoting the tightness of the connection to the core body, and improving the acquisition completeness of the core body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a side view of the overall structure of the present invention; Figure 2 A side view of the internal structure of the coring mechanism of the present invention; Figure 3 A partial side view of the internal structure of the coring mechanism of the present invention; Figure 4 It is a side view of the overall structure of the first mounting groove of the present invention; Figure 5 for Figure 2 A magnified schematic diagram of the middle A area; Figure 6 It is a side view of the overall structure of the wedge block of the present invention; Figure 7 A three-dimensional view of the overall structure of the wedge block of the present invention; Figure 8 A three-dimensional view of the second motor, the transmission drum and the second bearing connection structure of the present invention; Fig. 9 It is a three-dimensional view of the slitting knife of the present invention when it is guided by the triangular guide block; In the figure: 101, crawler trolley; 102, elevator; 103, coring mechanism; 201, fixed sleeve; 202, first motor; 203, lifting screw; 204, lifting slide; 205, lifting slide; 206, support plate; 207, second motor; 208, transmission drum; 209, coring drum; 210, limit rod; 211, first mounting groove; 212, limit top block; 213, support shaft; 214, limit slide; 215, limit slide plate; 216, limit wear hole; 217, transmission ring plate; 218, first bearing; 219, limit push rod; 220, second bearing; 301, connecting block; 302, wedge block; 303, connecting groove; 304, triangular guide block; 305, second mounting groove; 306, slitting knife; 307, elastic rotating shaft; 308, shielding piece; 309, spiral blade; 401, limit plate; 402, lower pressure plate; 403, third motor; 404, transmission sleeve; 405, transmission pressure rod; 406, connecting transmission block. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-7As shown: an ice drill coring device for exploration, including a crawler trolley 101, a lift 102 is installed on the crawler trolley 101, a coring mechanism 103 is installed on the lift 102, the coring mechanism 103 includes a fixed sleeve 201, a coring barrel 209 is sleeved on the outer side of the fixed sleeve 201, a limiting rod 210 is embedded on the inner side wall of the coring barrel 209, a first mounting groove 211 is provided on the inner side of the limiting rod 210, a limiting top block 212 is installed in the first mounting groove 211, the limiting top block 212 is hinged to the inner wall of the first mounting groove 211 through a supporting shaft 213, the supporting shaft 213 is close to the lower end of the limiting top block 212, and a limiting sliding surface is provided on the side surface of the limiting rod 210 close to the axis of the coring barrel 209 The limiting slide 214 is provided with a limiting slide plate 215 which is slidably embedded in the limiting slide 214, and the limiting slide plate 215 is provided with a limiting through hole 216; when the present embodiment is working, the coring mechanism 103 is used to take core samples in the roadbed of the ice and snow road to be constructed, so as to understand the roadbed information and provide the core body to be studied for various exploration and investigation research works. For example, in the construction of a winter performance test site for automobiles, it is often necessary to build a variety of ice and snow roads on the lake ice layer, and there are also some corresponding scientific investigations and studies, so it is necessary to take cores from the ice layer, which is mainly achieved by moving the elevator 102 and the coring mechanism 103 on the ice surface through the crawler trolley 101, and then the elevator 102 moves the coring mechanism 103 downward to perform rotary drilling on the ice layer to take the core body During drilling, the core is obtained by rotating the coring barrel 209. During the coring process, after the core is separated from the ice layer, the limiting slide plate 215 is moved downward to move the limiting through hole 216 to one side of the limiting top block 212. Before the limiting through hole 216 moves, the limiting top block 212 maintains a tendency to rotate toward the axial direction of the coring barrel 209 through the shape of the first mounting groove 211 and the position of the supporting shaft 213. As the limiting through hole 216 moves downward, the front end of the limiting top block 212 rotates and passes through the limiting through hole 216 and then abuts against the side surface of the core. Then the limiting slide plate 215 continues to move downward to limit the limiting top block 212 through the limiting through hole 216 and the inner cavity structure of the first mounting groove 211, so that the limiting top block 212 The end of the core body maintains a stable abutment with the core body. When the elevator 102 moves up the coring mechanism 103, the limiting top block 212 forms a clamping structure with the core body, thereby ensuring that as many core bodies as possible are taken out to the ground for research. When on the ground, the limiting slide plate 215 is moved upward to block the opening of the first mounting groove 211 through the inner wall of the limiting slide plate 215, and the limiting top block 212 is reversely rotated and retracted into the first mounting groove 211, thereby maintaining an unobstructed state of the inner wall of the coring barrel 209 to facilitate coring again. At the same time, the limiting top block 212 is used to abut and limit, so as to prevent the core body from hanging in the air below during coring and causing the core body to fall off, thereby ensuring the complete acquisition of the core body and preventing the core body from falling into a cavity, an underground lake, or other environment that is difficult to collect.

[0022] There are several limit rods 210 which are evenly distributed at equal angles, there are several first installation grooves 211 which are evenly distributed at equal distances, the limit through-holes 216 correspond to the first installation grooves 211 one by one, a first motor 202 is buried in the top of the fixed sleeve 201, the rotating shaft of the first motor 202 is vertically downward, a lifting screw 203 is installed at the lower end of the rotating shaft of the first motor 202, a lifting slider 205 is threadedly sleeved on the lifting screw 203, a lifting slot 204 is opened on the side wall of the fixed sleeve 201, a support plate 206 and a second motor 207 are movably sleeved on the periphery of the fixed sleeve 201, the second motor 207 is below the support plate 206 and fixedly connected thereto, a protrusion is provided on the side wall of the lifting slider 205, and the protrusion passes through the lifting slot 204 and is fixedly connected to the support plate 206, a transmission drum 208 is installed on the periphery of the second motor 207, and a coring drum 209 is fixedly connected to the transmission drum 208; When the present embodiment is working, the fixing sleeve 201 is used to keep the coring barrel 209 moving along the axial direction of the fixing sleeve 201 during the coring process, so as to ensure that the core body taken is in a standard cylindrical structure as much as possible, so as to ensure that the coring process is time-saving and labor-saving, avoid the coring process being time-consuming and labor-intensive due to shaking and deviation, and avoid irregular changes in the structure of the taken core body, so as to facilitate continuous, rapid, batch and complete acquisition of the core body; The transmission drum 208 is rotated by the second motor 207 to control the rotation speed of the core barrel 209, ensuring that the optimal ice-breaking rate is continuously maintained. The lifting screw 203 is rotated by the first motor 202 to push the lifting slider 205 up and down, thereby pressing the core barrel 209 down through the support plate 206 to further maintain the optimal ice-breaking rate. At the same time, the height of the obtained core can be flexibly adjusted through the flexible adjustment of the lifting screw 203.

[0023] A plurality of limit push rods 219 are provided below the second motor 207 and around the outer side of the fixed sleeve 201. The telescopic ends of the limit push rods 219 are jointly installed with a transmission ring plate 217. A first bearing 218 is installed at the lower part of the transmission ring plate 217. The outer ring of the first bearing 218 is connected to each limit slide plate 215. The top of the transmission drum 208 is rotatably connected to the support plate 206 through the second bearing 220. When this embodiment is working, the first bearing 218 is used to avoid interference with the limit slide 215 and the core barrel 209. Through the up and down movement of the first bearing 218, each limit slide 215 is adjusted to move up and down at the same time, so as to control the rotation and retraction of the limit top block 212. The limit push rod 219 runs synchronously, so that the limit slide 215 can be flexibly adjusted to ensure that the limit top block 212 is stably abutted against the side of the core body, and the inertia of the core body when being moved upward is used to further make the limit top block 212 abut against the core body, thereby ensuring that the core body is fully taken out.

[0024] A connecting block 301 is installed at the lower end of the fixed sleeve 201, and a plurality of wedge blocks 302 are fixedly connected to the outer periphery of the connecting block 301. A heating wire is embedded in the wedge block 302, and the power supply line of the heating wire is embedded in the side wall of the fixed sleeve 201; When the present embodiment is working, the wedge block 302 and the heating wire cooperate with the core barrel 209, and the heat of the heating wire is used to melt the top surface of the ice layer to be cored first, so that the lower surface of the wedge block 302 and the connecting block 301 are embedded in the ice layer, and then the electric heating is stopped, so that a limiting component is formed by the wedge block 302 to ensure the stable state of the fixed sleeve 201 and improve the stability of the rotation process of the core barrel 209. When the core barrel 209 stops rotating, the melted ice water refreezes with the coldness of the ice layer itself and is frozen and connected to the wedge block 302, thereby further making the acquisition of the core more secure, so as to facilitate the lifting and acquisition of the core, and the retrieval process is simple and efficient.

[0025] The cross section of the wedge block 302 is a triangular structure. The lower surface of the wedge block 302 and the lower surface of the connecting block 301 are located in the same plane and remain horizontal. The lower surface of the wedge block 302 is provided with a plurality of connecting grooves 303 arranged side by side. When this embodiment is working, the connection complexity with the ice layer surface is increased by connecting the groove 303, so that the fixed sleeve 201 is further tightly connected to the core through the wedge block 302, and it is mainly used to deal with the core material with a temperature below zero and a high water content.

[0026] A triangular guide block 304 is installed on the upper part of the wedge block 302, and the triangular guide block 304 is fixedly connected to the fixed sleeve 201. A second installation groove 305 is opened at the lower part of the side wall of the core-taking cylinder 209, and a slitting knife 306 is installed in the second installation groove 305. One end of the slitting knife 306 is elastically hinged to the second installation groove 305 through an elastic rotating shaft 307, and a shielding piece 308 is installed on the outer side of the second installation groove 305 and the other end close to the slitting knife 306; When this embodiment is working, the tip of the slitting knife 306 is always in a tendency to approach the fixed sleeve 201 through the elastic rotating shaft 307, and then it is first connected to the upper end of the core body through the wedge block 302 and the connecting block 301, and then the core taking cylinder 209 rotates and moves downward to perform the coring work. When moving, the slitting knife 306 is first guided by the triangular guide block 304 to prevent the slitting knife 306 from being interfered with by the connecting block 301. When the coring work is completed, the core taking cylinder 209 is rotated in the opposite direction but does not move downward. The tip of the slitting knife 306 maintains pressure on the side of the core body and generates a slitting force under the action of the elastic rotating shaft 307 until the slitting knife 306 completes the slitting and separation of the core body and the material layer, thereby increasing the speed of core acquisition and improving the integrity and aesthetics of the core body shape for subsequent research.

[0027] A spiral blade 309 is provided around the outer circumference of the core barrel 209; When this embodiment is working, the spiral blade 309 rotates synchronously with the coring barrel 209 to promote the downward movement of the coring barrel 209 to collect the core, and at the same time assists in continuously discharging the generated debris to the ground or the support plate 206 as it rotates, so as to avoid the debris interfering with the coring process and improve the integrity of the core structure.

[0028] A lower pressure plate 402 is installed at the moving end of the lift 102, and a plurality of transmission pressure rods 405 connected end to end are arranged between the lower pressure plate 402 and the coring mechanism 103. A limit plate 401 is arranged at the lower part of the lift 102 and directly below the lower pressure plate 402. The transmission pressure rod 405 penetrates the limit plate 401, and the outer periphery of the transmission pressure rod 405 is in sliding contact with the limit plate 401. When this embodiment is working, the number of transmission pressure rods 405 is continuously increased to obtain a deeper core body. When acquiring, the lower pressure plate 402 moves up and down reciprocatingly, and a new transmission pressure rod 405 is added after the previous transmission pressure rod 405 moves down, thereby obtaining a deeper core body acquisition capability.

[0029] A third motor 403 is installed at the lower part of the lower pressure plate 402, and a transmission sleeve 404 is installed at the lower end of the rotating shaft of the third motor 403 and the lower end of each transmission pressure rod 405, and a connecting transmission block 406 is installed at the top of each transmission pressure rod 405 and the top of the fixed sleeve 201, and the connecting transmission block 406 is correspondingly engaged with the transmission sleeve 404; When this embodiment is working, the corresponding clamping of the transmission sleeve 404 and the connecting transmission block 406 shortens the time spent on deep coring and facilitates quick assembly. When the connecting block 301 and the wedge block 302 abut against the upper end of the core body, the third motor 403 rotates the transmission pressure rod 405, driving the fixed sleeve 201, the connecting block 301 and the wedge block 302 to rotate, and the wedge structure of the wedge block 302 is used to push the debris on the top of the core body to move upward, so that the connecting block 301 abuts against the main body top of the core body, thereby eliminating the debris's obstruction to the acquisition of the core body and improving the acquisition integrity of the core body.

[0030] A working method of an ice drill coring device for exploration comprises the following steps: Step 1: The crawler trolley 101 moves the elevator 102 and the coring mechanism 103 on the ice surface, and then the elevator 102 moves the coring mechanism 103 downward to rotate and drill the ice layer to obtain the core; Step 2: When the connecting block 301 and the wedge block 302 are in contact with the upper end of the core body, the third motor 403 rotates the transmission pressure rod 405, driving the fixed sleeve 201, the connecting block 301 and the wedge block 302 to rotate, and the wedge structure of the wedge block 302 is used to push the debris on the top of the core body upward, so that the connecting block 301 is in contact with the top of the main body of the core body, and the wedge block 302 and the electric heating wire cooperate with the core barrel 209, and the heat of the electric heating wire is used to melt the top surface of the ice layer waiting for coring, so that the wedge block 302 and the connecting block The lower surface of the block 301 is embedded in the ice layer, and then the electric heating is stopped, so that a limiting component is formed by the wedge block 302 to ensure the stable state of the fixed sleeve 201. When the core barrel 209 stops rotating, the melted ice water refreezes with the coldness of the ice layer itself and is frozen and fixed with the wedge block 302. The connection with the surface of the ice layer is complicated by the connecting groove 303. The transmission drum 208 is rotated by the second motor 207 to control the rotation speed of the core barrel 209, and the core body is obtained by rotating the core barrel 209. Step 3: After the core is separated from the ice layer, the first bearing 218 is used to avoid interference with the limiting slide plate 215 and the core barrel 209. The first bearing 218 moves up and down, and each limiting slide plate 215 is adjusted to move up and down at the same time, and the limiting through hole 216 is moved to one side of the limiting top block 212. Before the limiting through hole 216 moves, the limiting top block 212 maintains a tendency to rotate toward the axial direction of the core barrel 209 through the shape of the first mounting groove 211 and the position of the supporting shaft 213. As the limiting through hole 216 moves downward, the front end of the limiting top block 212 rotates and passes through the limiting through hole 216. 6 Then it abuts against the side of the core body, and then the limiting slide 215 continues to move downward, and the limiting top block 212 is limited by the limiting through hole 216 and the inner cavity structure of the first installation groove 211, so that the end of the limiting top block 212 maintains a stable abutment with the core body. When the elevator 102 moves the coring mechanism 103 upward, the limiting top block 212 forms a clamping structure with the core body. When it is on the ground, the limiting slide 215 is moved upward to block the opening of the first installation groove 211 through the inner wall of the limiting slide 215, and the limiting top block 212 is reversely rotated and retracted into the first installation groove 211, thereby maintaining the unobstructed state of the inner wall of the core barrel 209; Step 4: The lifting screw 203 is rotated by the first motor 202 to push the lifting slider 205 up and down, thereby pressing the core barrel 209 down through the support plate 206, and the core barrel 209 is kept moving along the axial direction of the fixed sleeve 201 during the coring process through the fixed sleeve 201, so as to further maintain the best ice breaking rate. At the same time, the height of the obtained core body can be flexibly adjusted through the flexible adjustment of the lifting screw 203; when the acquisition is finished, the tip of the slitting knife 306 is always close to the fixed sleeve 201 through the elastic rotating shaft 307. , and then first connect it to the upper end of the core body through the wedge block 302 and the connecting block 301, and then the core-taking cylinder 209 rotates and moves downward to perform the coring work. When moving, the slitting knife 306 is first guided by the triangular guide block 304 to prevent the slitting knife 306 from being interfered with by the connecting block 301. When the coring work is completed, the core-taking cylinder 209 is rotated in the opposite direction but does not move downward. The tip of the slitting knife 306 maintains pressure on the side of the core body and generates a slitting force under the action of the elastic rotating shaft 307 until the slitting knife 306 completes the slitting and separation of the core body and the material layer.

[0031] When the present invention is in use, after the core is separated from the ice layer, the staff moves the limiting slide plate 215 downward to move the limiting perforation 216 to one side of the limiting top block 212. Before the limiting perforation 216 moves, the limiting top block 212 maintains a tendency to rotate toward the axial direction of the core barrel 209 through the shape of the first mounting groove 211 and the position of the supporting shaft 213. As the limiting perforation 216 moves downward, the front end of the limiting top block 212 rotates and passes through the limiting perforation 216 and then abuts against the side surface of the core. Then the limiting slide plate 215 continues to move downward, and the limiting top block 212 is limited by the inner cavity structure of the limiting perforation 216 and the first mounting groove 211, so that the end of the limiting top block 212 maintains a stable abutment with the core. When the elevator 102 moves the core removal mechanism 103 upward, the limiting top block 212 forms a clamping structure with the core, thereby ensuring that as many cores as possible are taken out to the ground. During operation, the wedge block 302 and the electric heating wire cooperate with the core barrel 209, and the heat of the electric heating wire is used to melt the top surface of the ice layer waiting for coring, so that the wedge block 302 and the lower surface of the connecting block 301 are embedded in the ice layer, and then the electric heating is stopped, so that the wedge block 302 forms a limiting component to ensure the stable state of the fixed sleeve 201 and improve the stability of the rotation process of the core barrel 209. When the core barrel 209 stops rotating, the melted ice water refreezes with the coldness of the ice layer itself and is frozen and connected with the wedge block 302, thereby further making the acquisition of the core more secure, so as to facilitate the lifting and acquisition of the core, and the taking and placing process is simple and efficient. The connection complexity with the surface of the ice layer is increased by the connecting groove 303, so that the fixed sleeve 201 is further closely connected to the core through the wedge block 302. During operation, the first bearing 218 is used to avoid interference with the limiting slide plate 215, which rotates synchronously with the coring barrel 209. The first bearing 218 moves up and down, and each limiting slide plate 215 is adjusted to move up and down at the same time, so as to control the rotation and retraction of the limiting top block 212. The limiting push rod 219 operates synchronously, so that the limiting slide plate 215 can be flexibly adjusted to ensure that the limiting top block 212 stably abuts against the side of the core body, and the inertia of the core body when being moved up is used to further abut the limiting top block 212 with the core body, so as to ensure that the core body is fully taken out, and the limiting top block 212 is used to prevent the core body from hanging in the air and falling off during coring, so as to ensure the complete acquisition of the core body and prevent the core body from falling into a cavity, an underground lake or other environment that is difficult to collect. When moving, the slitting knife 306 is first guided by the triangular guide block 304 to prevent the slitting knife 306 from being interfered by the connecting block 301. When the coring work is completed, the coring barrel 209 is rotated in the opposite direction but does not move downward. The tip of the slitting knife 306 maintains pressure on the side of the core body under the action of the elastic shaft 307 and generates a slitting force until the slitting knife 306 completes the slitting and separation of the core body and the material layer, thereby increasing the speed of obtaining the core body and improving the integrity and beauty of the core body appearance for subsequent research; The spiral blade 309 rotates synchronously with the coring barrel 209 to promote the downward movement of the coring barrel 209 for coring, and at the same time assists in discharging the generated debris to the ground or the support plate 206 as it rotates, and by continuously increasing the number of transmission pressure rods 405, a deeper core body is obtained, and the corresponding engagement of the transmission sleeve 404 and the connecting transmission block 406 shortens the time for deep coring, which facilitates rapid assembly, and when the connecting block 301 and the wedge block 302 abut against the upper end of the core body, the third motor 403 rotates the transmission pressure rod 405, driving the fixed sleeve 201, the connecting block 301 and the wedge block 302 to rotate, and the wedge structure of the wedge block 302 is used to push the debris on the top of the core body upward, so that the connecting block 301 abuts against the main body top of the core body, thereby eliminating the debris's obstruction to the acquisition of the core body, promoting the tightness of the connection to the core body, and improving the acquisition completeness of the core body.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An ice drill coring device for exploration, characterized in that: The invention comprises a crawler trolley (101), wherein a lift (102) is mounted on the crawler trolley (101), wherein a coring mechanism (103) is mounted on the lift (102), wherein the coring mechanism (103) comprises a fixed sleeve (201), wherein a coring tube (209) is sleeved on the outer side of the fixed sleeve (201), wherein a limiting rod (210) is embedded on the inner side wall of the coring tube (209), wherein a first mounting groove (211) is formed on the inner side of the limiting rod (210), and wherein the first mounting groove (211) is provided with a first mounting groove (211). 1) A limiting top block (212) is installed inside, the limiting top block (212) is hinged to the inner wall of the first installation groove (211) through a supporting shaft (213), the supporting shaft (213) is close to the lower end of the limiting top block (212), and a limiting slide groove (214) is provided on a side surface of the limiting rod (210) close to the axis of the core taking tube (209), a limiting slide plate (215) is slidably embedded in the limiting slide groove (214), and a limiting through hole (216) is provided on the limiting slide plate (215).

2. The ice drilling coring equipment for exploration according to claim 1, characterized in that: The limiting rods (210) are provided in a plurality and are evenly distributed at equal angles; the first mounting grooves (211) are provided in a plurality and are evenly distributed at equal distances; the limiting through holes (216) correspond to the first mounting grooves (211) in a one-to-one manner; a first motor (202) is embedded in the top of the fixed sleeve (201); the rotating shaft of the first motor (202) is vertically downward; a lifting screw (203) is installed at the lower end of the rotating shaft of the first motor (202); a lifting slider (205) is threadedly sleeved on the lifting screw (203); and the fixed sleeve A lifting slot (204) is provided on the side wall of (201); a support plate (206) and a second motor (207) are provided on the outer peripheral movable sleeve of the fixed sleeve (201); the second motor (207) is located below the support plate (206) and is fixedly connected thereto; a protrusion is provided on the side wall of the lifting slider (205) and the protrusion passes through the lifting slot (204) and is fixedly connected to the support plate (206); a transmission drum (208) is installed on the outer periphery of the second motor (207); and a core removal drum (209) is fixedly connected to the transmission drum (208).

3. The ice drilling coring equipment for exploration according to claim 2, characterized in that: A plurality of limit push rods (219) are provided below the second motor (207) and around the outer side of the fixed sleeve (201); the telescopic ends of the limit push rods (219) are jointly mounted with a transmission ring plate (217); a first bearing (218) is mounted at the lower part of the transmission ring plate (217); the outer ring of the first bearing (218) is connected to each limit slide plate (215); and the top of the transmission rotating cylinder (208) is rotatably connected to the support plate (206) via a second bearing (220).

4. The ice drilling coring equipment for exploration according to claim 2, characterized in that: A connecting block (301) is installed at the lower end of the fixed sleeve (201), a plurality of wedge-shaped blocks (302) are fixedly connected to the outer periphery of the connecting block (301), a heating wire is embedded in the wedge-shaped block (302), and a power supply line of the heating wire is embedded in the side wall of the fixed sleeve (201).

5. The ice drilling coring equipment for exploration according to claim 4, characterized in that: The cross section of the wedge block (302) is triangular in structure, the lower surface of the wedge block (302) and the lower surface of the connecting block (301) are located in the same plane and remain horizontal, and the lower surface of the wedge block (302) is provided with a plurality of connecting grooves (303) arranged side by side.

6. The ice drilling coring equipment for exploration according to claim 4, characterized in that: A triangular guide block (304) is installed on the upper part of the wedge block (302), and the triangular guide block (304) is fixedly connected to the fixed sleeve (201). A second installation groove (305) is opened at the lower part of the side wall of the core removal cylinder (209), and a slitting knife (306) is installed in the second installation groove (305). One end of the slitting knife (306) is elastically hinged to the second installation groove (305) through an elastic rotating shaft (307), and a shielding sheet (308) is installed on the outside of the second installation groove (305) and at the other end close to the slitting knife (306).

7. The ice drilling coring equipment for exploration according to claim 1, characterized in that: A spiral blade (309) is arranged around the outer circumference of the core removal barrel (209).

8. The ice drilling coring equipment for exploration according to claim 1, characterized in that: A lower pressure plate (402) is installed at the movable end of the elevator (102), and a plurality of transmission pressure rods (405) connected end to end are arranged between the lower pressure plate (402) and the coring mechanism (103). A limit plate (401) is arranged at the lower part of the elevator (102) and directly below the lower pressure plate (402), and the transmission pressure rod (405) passes through the limit plate (401), and the outer periphery of the transmission pressure rod (405) is in sliding contact with the limit plate (401).

9. The ice drilling coring equipment for exploration according to claim 8, characterized in that: A third motor (403) is installed at the lower part of the lower pressure plate (402); a transmission sleeve (404) is installed at the lower end of the rotating shaft of the third motor (403) and the lower end of each transmission pressure rod (405); a connecting transmission block (406) is installed at the top end of each transmission pressure rod (405) and the top end of the fixed sleeve (201); and the connecting transmission block (406) is correspondingly engaged with the transmission sleeve (404).

10. A working method of an ice drill coring device for exploration, applied to an ice drill coring device for exploration as claimed in any one of claims 3 to 9, characterized in that: The following steps are involved: Step 1: The lift (102) and the coring mechanism (103) are moved on the ice surface by means of a crawler trolley (101), and then the lift (102) moves the coring mechanism (103) downward to rotate and drill the ice layer to obtain a core body; Step 2: The transmission rotating drum (208) is rotated by the second motor (207), thereby controlling the rotation speed of the coring drum (209), and the core body is obtained by rotating the coring drum (209); Step 3: After the core is separated from the ice layer, the limiting slide plate (215) is moved downward, and the front end of the limiting top block (212) is rotated and passes through the limiting through hole (216) and then abuts against the side surface of the core to form a clamping structure for the core; when on the ground, the limiting slide plate (215) is moved upward, and the limiting top block (212) is reversely rotated and retracted into the first installation groove (211); Step 4: The lifting screw (203) is rotated by the first motor (202) to press down the core-taking barrel (209), thereby further maintaining the optimal ice-breaking rate. At the same time, the height of the obtained core can be flexibly adjusted by flexibly adjusting the lifting screw (203).

Images