Damping device and deep sounding device

Abstract

The application discloses a damping device and a deep earth exploration device. The deep earth exploration device comprises the damping device, a plurality of drill rods, an instrument cabin and a drill bit. The plurality of drill rods comprises a detection drill rod at a bottom end. The instrument cabin comprises a carrier and a detection assembly. The damping device comprises a shell, a first damping assembly and a second damping assembly. The shell is used for being sleeved in a steel sleeve of the detection drill rod and the outer periphery of a mandrel of the detection drill rod. At least part of the shell is movable relative to the detection drill rod to have a closed state and an open state. The first damping assembly comprises a first elastic piece and a second elastic piece which are sequentially and spacedly distributed on the side of the instrument cabin away from the drill bit in the up-down direction. The second damping assembly comprises a buffer piece used for filling the gap between the detection assembly and the carrier. The instrument cabin is bidirectionally damped in the axial direction of the drill rod through the first damping assembly. The impact vibration on the detection assembly is reduced through the second damping assembly, the structure of the detection assembly is protected, and the detection precision of the detection assembly is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep exploration, in particular to a damping device and a deep exploration device. BACKGROUND

[0002] The existing coal mine goaf exploration technology is divided into indirect method and direct method. The indirect method mainly includes gravity, magnetic, electric, seismic and other geophysical exploration methods; the direct method includes post-drilling detection, drilling-while-detecting and underground cavity scanning and other related technologies relying on geological drilling. In the field of deep exploration, measurement while drilling (MWD) and logging while drilling (LWD) are important components of international drilling high technology. The instrument is used in the drilling hole. With the increase of the drilling depth, the pressure in the drilling hole increases, which will produce pressure shock wave and impact force, so that the instrument cabin containing the detection assembly is damaged by the great pressure shock and impact force, and even the detection accuracy of the detection assembly is affected, thereby affecting the detection result. SUMMARY

[0003] The main purpose of the present application is to provide a damping device and a deep exploration device, which aims to solve the problem that the instrument cabin containing the detection assembly is damaged by the great pressure shock and impact force with the increase of the drilling depth in the deep exploration process, and affects the detection result.

[0004] To achieve the above-mentioned purpose, the damping device provided by the present application is used in the deep exploration device, the deep exploration device further comprises a plurality of drill rods, an instrument cabin and a drill bit, the plurality of drill rods are sequentially connected and arranged in the up-down direction, the plurality of drill rods comprise a detection drill rod located at the bottom end, an outer periphery of a core shaft of the detection drill rod is sleeved with the instrument cabin, and a lower end is connected with the drill bit, the instrument cabin comprises a carrier and a detection assembly contained in the carrier, and the damping device comprises:

[0005] A shell is used for sleeving in a steel sleeve of the detection drill rod, sleeving on an outer periphery of the core shaft of the detection drill rod, and being arranged on an upper side of the drill bit. At least part of the shell is movable relative to the detection drill rod, so as to have a closed state and an open state. When the shell is in the closed state, the shell is used for sleeving on an outer periphery of the instrument cabin, so that the instrument cabin is contained and closed inside the shell. When the shell is in the open state, at least the detection assembly of the instrument cabin is located outside the shell.

[0006] A first damping assembly comprises a first elastic member and a second elastic member, the first elastic member and the second elastic member are sequentially and spacedly distributed on a side of the instrument cabin away from the drill bit in the up-down direction.

[0007] A second damping assembly comprising a buffer member is arranged in the carrier of the instrument cabin and is used to fill the gap between the detection assembly and the carrier.

[0008] Optionally, the damping device further comprises a third damping assembly, the third damping assembly comprising a third elastic member, the third elastic member being arranged on the side of the instrument cabin close to the drill bit.

[0009] Optionally, the length of the first elastic member is greater than the length of the second elastic member.

[0010] Optionally, the buffer member comprises a rubber member.

[0011] Optionally, the housing comprises an upper protection tube and a lower protection tube, the upper protection tube being arranged in the steel sleeve, the lower protection tube being movable relative to the upper protection tube along the axial direction of the detection drill rod, when the housing is in the closed state, the upper protection tube and the lower protection tube enclose the instrument cabin, when the housing is in the open state, the upper protection tube and the lower protection tube are spaced apart along the axial direction of the detection drill rod, and the detection assembly of the instrument cabin is located between the upper protection tube and the lower protection tube.

[0012] Optionally, at least one driving motor and an upper thrust bearing are arranged in the upper protection tube and arranged around the outer periphery of the mandrel, the upper thrust bearing is located between the first elastic member and the second elastic member, is fixedly connected with the first elastic member, and is connected with the inner wall of the upper protection tube, the driving motor is drivingly connected with the upper thrust bearing to drive the upper thrust bearing to rotate around the axis of the detection drill rod and drive the mandrel to rotate;

[0013] The lower protection tube is provided with a lower thrust bearing, the lower thrust bearing is arranged around the outer periphery of the mandrel and is arranged at the lower end of the instrument cabin, and is threadedly connected with the lower protection tube, so that when the upper thrust bearing drives the mandrel to rotate, the lower thrust bearing is stressed to rotate the mandrel and drives the lower protection tube to move close to or away from the upper protection tube.

[0014] Optionally, the upper protection tube is slidingly connected with the mandrel, the upper protection tube is provided with a sliding block and a limiting block, the sliding block is arranged around the outer periphery of the driving motor to fix the driving motor, the limiting block is arranged above the sliding block, and the sliding block is slidable along the axial direction of the detection drill rod between the limiting block and the first elastic member; and / or,

[0015] The damping device further comprises a third damping assembly, the third damping assembly comprising a third elastic member, a connecting buffer member is connected to the side of the lower thrust bearing close to the drill bit, and the third elastic member is fixedly connected to the lower side of the connecting buffer member.

[0016] Optionally, the shock-absorbing device further comprises a first multi-stage sealing ring, which is sleeved on the outer periphery of the mandrel and located between the upper thrust bearing and the first elastic member; and / or,

[0017] The shock-absorbing device further comprises a second multi-stage sealing ring, which is sleeved on the outer periphery of the instrument cabin and located on the upper side of the lower thrust bearing.

[0018] Optionally, the outer periphery of the shell is provided with a wear-resistant sleeve.

[0019] The present application further provides a deep exploration device, comprising:

[0020] A plurality of drill rods are sequentially connected in the up-down direction, and the plurality of drill rods include an exploration drill rod located at the bottom end.

[0021] An instrument cabin is sleeved on the outer periphery of the exploration drill rod, and the instrument cabin comprises a carrier and an exploration assembly accommodated in the carrier.

[0022] A drill bit is provided at the lower end of the exploration drill rod; and

[0023] A shock-absorbing device comprises:

[0024] A shell is used for being sleeved on the outer periphery of the mandrel of the exploration drill rod and located on the upper side of the drill bit, and at least part of the shell is movable relative to the exploration drill rod to have a closed state and an open state, when the shell is in the closed state, the shell is used for being sleeved on the outer periphery of the instrument cabin, so that the instrument cabin is accommodated in the shell, and when the shell is in the open state, at least the exploration assembly of the instrument cabin is located outside the shell.

[0025] A first shock-absorbing assembly comprises a first elastic member and a second elastic member, which are sequentially and spacedly distributed on the side of the instrument cabin away from the drill bit in the up-down direction.

[0026] A second shock-absorbing assembly comprises a buffer member, which is used for being arranged in the carrier of the instrument cabin and used for filling the gap between the exploration assembly and the carrier.

[0027] The shock-absorbing device comprises a shell, a first shock-absorbing assembly and a second shock-absorbing assembly, the first shock-absorbing assembly comprises a first elastic member and a second elastic member, and the first elastic member and the second elastic member are distributed in the upper and lower direction in sequence and at intervals on the side of the instrument cabin away from the drill bit, that is, the first elastic member is arranged away from the instrument cabin relative to the second elastic member, thereby achieving bidirectional shock absorption of the instrument cabin in the axial direction of the drill pipe, that is, in the lowering process of the instrument cabin, that is, in the drilling process of the drill pipe, the impact shock of the instrument cabin caused by the impact force is reduced through the first elastic member, and in the lifting process of the instrument cabin, the impact shock of the instrument cabin caused by the impact force is reduced through the second elastic member, thereby protecting the structure of the instrument cabin; meanwhile, the second shock-absorbing assembly is filled in the gap between the detection assembly and the carrier, so that in the movement process of the instrument cabin, the impact shock of the detection assembly is reduced through the second shock-absorbing assembly, the structure of the detection assembly is protected, and the detection accuracy of the detection assembly is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0029] Figure 1 The structural schematic diagram of an embodiment of the deep earth detection device (when the shell of the shock-absorbing device is in a closed state);

[0030] Figure 2 The structural schematic diagram of the deep earth detection device (when the shell of the shock-absorbing device is in an open state); Figure 1 The structural schematic diagram of the deep earth detection device (when the shell of the shock-absorbing device is in an open state);

[0031] Figure 3 The structural schematic diagram of the deep earth detection device (when the shell of the shock-absorbing device is in an open state); Figure 1 The structural schematic diagram of the first elastic member of the shock-absorbing device of the deep earth detection device.

[0032] Explanation of reference numerals:

[0033]

[0034]

[0035] The implementation of the present application, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0037] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, motion condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0038] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0039] The existing coal mine goaf detection technology is divided into two categories: indirect method and direct method. The indirect method mainly includes gravity, magnetic, electric, seismic and other geophysical exploration methods; the direct method includes post-drilling detection, while-drilling detection, underground cavity scanning and other related technologies relying on geological drilling. In the field of deep exploration, measurement while drilling (MWD) and logging while drilling (LWD) are important components of international drilling high technology. The instrument is used in the borehole. As the drilling depth increases, the pressure in the borehole increases, which will produce pressure shock wave and impact force, so that the instrument cabin containing the detection assembly is damaged by the great pressure shock and impact force, and even the detection accuracy of the detection assembly is affected, thereby affecting the detection result.

[0040] In view of this, the present application provides a damping device 100 and a deep exploration device 1000, Figures 1 to 3 For an embodiment of the deep exploration device 1000 provided by the present application, please refer to Figure 1 and Figure 2The deep exploration device 1000 comprises a plurality of drill rods, an instrument cabin 300, a drill bit 400 and a damping device 100. The drill rods are sequentially connected in the up-down direction. The drill rods comprise a detection drill rod 200 at the bottom end. The outer periphery of the mandrel 210 of the detection drill rod 200 is sleeved with the instrument cabin 300, and the lower end is connected with the drill bit 400. The instrument cabin 300 comprises a carrier 310 and a detection assembly accommodated in the carrier 310. The main point of the present application is the design of the damping device 100, which will be described below in combination with specific drawings.

[0041] Please refer to Figure 1 and Figure 2 The damping device 100 comprises a shell 1, a first damping assembly 2 and a second damping assembly. The shell 1 is sleeved in the steel sleeve 220 of the detection drill rod 200 and around the outer periphery of the mandrel 210 of the detection drill rod 200, and is arranged on the upper side of the drill bit 400. At least part of the shell 1 is movable relative to the detection drill rod 200 to have a closed state and an open state. When the shell 1 is in the closed state, the shell 1 is sleeved around the outer periphery of the instrument cabin 300, so that the instrument cabin 300 is accommodated in the shell 1. When the shell 1 is in the open state, at least the detection assembly of the instrument cabin 300 is located outside the shell 1. The first damping assembly 2 comprises first and second elastic members 21 and 22. The first and second elastic members 21 and 22 are distributed in the up-down direction on the side of the instrument cabin 300 away from the drill bit 400. The second damping assembly is arranged in the carrier 310 of the instrument cabin 300 and is used to fill the gap between the detection assembly and the carrier 310.

[0042] In the technical scheme of the present application, the shock-absorbing device 100 comprises a shell 1, a first shock-absorbing assembly 2 and a second shock-absorbing assembly, the first shock-absorbing assembly 2 comprises a first elastic member 21 and a second elastic member 22, and the first elastic member 21 and the second elastic member 22 are distributed in the up-down direction in sequence and at intervals on the side of the instrument cabin 300 away from the drill bit 400, that is, the first elastic member 21 is arranged away from the instrument cabin 300 relative to the second elastic member 22, thereby realizing bidirectional shock absorption of the instrument cabin 300 in the axial direction of the drill pipe, that is, in the lowering process of the instrument cabin 300, that is, in the drilling process of the drill pipe, the impact shock of the instrument cabin 300 caused by the impact force can be reduced through the first elastic member 21, and in the lifting process of the instrument cabin 300, the impact shock of the instrument cabin 300 caused by the impact force can be reduced through the second elastic member 22, so as to protect the structure of the instrument cabin 300. At the same time, the second shock-absorbing assembly is filled in the gap between the detection assembly and the carrier 310, so that in the movement process of the instrument cabin 300, the impact shock of the detection assembly can be reduced through the second shock-absorbing assembly, the structure of the detection assembly is protected, and the detection accuracy of the detection assembly is ensured.

[0043] In addition, the shell 1 has a closed state and an open state. In the lowering process of the instrument cabin 300, the shell 1 is in the closed state (see Figure 1 ), at this time, the instrument cabin 300 is accommodated in the shell 1, the shell 1 transmits the drilling pressure and torque of the drill pipe to the drill bit 400, reduces the stress of the instrument cabin 300, protects the structure of the instrument cabin 300, reduces the influence of complex drilling conditions on the detection assembly, and ensures the detection accuracy of the detection assembly. When the instrument cabin 300 moves to the detection position, the shell 1 moves relative to the detection drill pipe 200 and is in the open state (see Figure 2 ), the instrument cabin 300 is exposed, and the detection assembly is facilitated to detect.

[0044] It should be noted that in the present application, the first elastic member 21 and the second elastic member 22 can be rubber pads or elastic members such as springs. Specifically, in an embodiment of the present application, the first elastic member 21 is a spring (see Figure 3 ), and the second elastic member 22 is a spring (the specific structure is the same as or similar to that of the first elastic structure), which has good elasticity and low cost.

[0045] Further, please refer to Figure 1 and Figure 2The shock-absorbing device 100 further comprises a third shock-absorbing assembly 3, which comprises a third elastic member 31 arranged on one side of the instrument cabin 300 close to the drill bit 400; in this way, by arranging the third elastic member 31 below the instrument cabin 300, the impact shock to the instrument cabin 300 during drilling can be further reduced, thereby further protecting the structure of the instrument cabin 300.

[0046] Further, the third elastic member 31 is a spring, which has good elasticity and low cost.

[0047] Since the impact force on the instrument cabin 300 during lowering is greater than the force during lifting, in an embodiment of the present application, the length of the first elastic member 21 is greater than the length of the second elastic member 22, i.e. the elastic force of the first elastic member 21 is greater than the elastic force of the second elastic member 22, so as to greatly reduce the impact shock to the instrument cabin 300 during drilling and protect the structure of the instrument cabin 300.

[0048] More specifically, in an embodiment of the present application, the length of the first elastic member 21 is 55 mm, and the length of the second elastic member 22 is 45 mm.

[0049] Specifically, the buffer member comprises a rubber member, such as a nitrile rubber seal, a silicone rubber seal, etc., which has good elasticity, weather resistance, corrosion resistance, etc., and low cost.

[0050] In the present application, at least part of the outer shell 1 is movable relative to the detection drill rod 200, which can be understood as that the entire outer shell 1 is movable relative to the detection drill rod 200, or part of the structure of the outer shell 1 is movable relative to the detection drill rod 200, and the other part of the structure of the outer shell 1 is fixed relative to the detection drill rod 200.

[0051] Of course, when the outer shell 1 is in the open state, at least the detection assembly of the instrument cabin 300 is located outside the outer shell 1, which can be understood as that when the outer shell 1 is in the open state, the entire instrument cabin 300 can be exposed outside the outer shell 1, or only part of the structure of the instrument cabin 300 is exposed outside the outer shell 1, i.e. only the part of the carrier 310 corresponding to the detection assembly is exposed outside the outer shell 1.

[0052] Specifically, please refer to Figure 1 and Figure 2, the shell 1 includes an upper protection tube 11 and a lower protection tube 12, the upper protection tube 11 is used to be sleeved in the steel casing 220, the lower protection tube 12 is movable along the axial direction of the detection drill rod 200 relative to the upper protection tube 11, when the shell 1 is in the closed state, the upper protection tube 11 and the lower protection tube 12 enclose the instrument cabin 300, when the shell 1 is in the open state, the upper protection tube 11 and the lower protection tube 12 are spaced along the axial direction of the detection drill rod 200, and the detection assembly of the instrument cabin 300 is located between the upper protection tube 11 and the lower protection tube 12. In this way, the closing and opening of the shell 1 are realized by the gathering and separation of the upper protection tube 11 and the lower protection tube 12, so as to meet the requirements of different use states of the instrument cabin 300, that is, to protect the structure of the instrument cabin 300 during drilling and to facilitate the use of the detection assembly during detection.

[0053] It should be noted that, in the present application, the gathering and separation of the upper protection tube 11 and the lower protection tube 12 can be realized by a motor-push rod driving assembly and the like.

[0054] Specifically, please refer to Figure 1 and Figure 2 In an embodiment of the present application, at least one driving motor and an upper thrust bearing 4 are arranged in the upper protection tube 11 and are used to be sleeved around the outer periphery of the mandrel 210, the upper thrust bearing 4 is located between the first elastic member 21 and the second elastic member 22, is fixedly connected with the first elastic member 21, and is connected with the inner wall of the upper protection tube 11, the driving motor is drivingly connected with the upper thrust bearing 4, so as to drive the upper thrust bearing 4 to rotate around the axis of the detection drill rod 200 and drive the mandrel 210 to rotate; a lower thrust bearing 5 is arranged in the lower protection tube 12 and is used to be sleeved around the outer periphery of the mandrel 210, and is arranged at the lower end of the instrument cabin 300 and is threadedly connected with the lower protection tube 12, so that when the mandrel 210 is driven to rotate by the upper thrust bearing 4, the lower thrust bearing 5 is forced to rotate with the mandrel 210 and drives the lower protection tube 12 to move close to or away from the upper protection tube 11. In this way, the gathering and separation of the upper protection tube 11 and the lower protection tube 12 are realized through the transmission connection among the driving motor, the upper thrust bearing 4 and the lower thrust bearing 5, and the above structure is not located in the detection range of the detection assembly, so as to ensure the detection accuracy of the detection assembly.

[0055] It should be noted that, in the present application, the number of driving motors is not limited, and can be one, two, three or the like, which can be set according to specific requirements. Specifically, in an embodiment of the present application, three driving motors are arranged.

[0056] Further, the upper protection pipe 11 is provided with a sliding block 6 sleeved on the outer periphery of the driving motor for fixing the driving motor to overcome the counter torque generated in the independent gyroscopic measurement process of the instrument cabin 300.

[0057] In the deep exploration process, the drill pipe will vibrate in the drilling or lifting process, and the mandrel 210 will also rotate, therefore, the upper protection pipe 11 is in sliding oil seal connection with the mandrel 210, so that the mandrel 210 can move up and down relative to the upper protection pipe 11, thereby ensuring the stability of the movement of the mandrel 210. More specifically, the upper protection pipe 11 and the mandrel 210 are connected through a TC skeleton oil seal. Further, the upper protection pipe 11 is provided with a limiting block 7 above the sliding block 6, and the sliding block 6 can slide in the axial direction of the exploration drill pipe 200 between the limiting block 7 and the first elastic member 21, that is, when the mandrel 210 moves up and down, it will drive the sliding block 6 to move, but through the limiting block 7 and the first elastic member 21, it can only move within a certain range, thereby limiting the movement range of the mandrel 210 and improving the stability of the movement.

[0058] Specifically, based on the above-mentioned "the damping device 100 further comprises a third damping assembly 3, the third damping assembly 3 comprises a third elastic member 31", in an embodiment, the lower thrust bearing 5 is connected with a connecting buffer 8 on one side close to the drill bit 400, and the third elastic member 31 is fixedly connected to the lower side of the connecting buffer 8. When the third elastic member 31 is compressed under stress, the stress of the lower thrust bearing 5 is reduced, thereby reducing the damage.

[0059] It should be noted that the above two technical features can be set alternatively or simultaneously, and the specific embodiments are described in detail in Figure 1 and Figure 2 In an embodiment of the present application, the above two technical features are set simultaneously, that is, the upper protection pipe 11 is in oil seal connection with the mandrel 210, the upper protection pipe 11 is provided with a sliding block 6 and a limiting block 7, the sliding block 6 is sleeved on the outer periphery of the driving motor for fixing the driving motor, the limiting block 7 is arranged above the sliding block 6, and the sliding block 6 can slide in the axial direction of the exploration drill pipe 200 between the limiting block 7 and the first elastic member 21, and the damping device 100 further comprises a third damping assembly 3, the third damping assembly 3 comprises a third elastic member 31, the lower thrust bearing 5 is connected with a connecting buffer 8 on one side close to the drill bit 400, and the third elastic member 31 is fixedly connected to the lower side of the connecting buffer 8.

[0060] Specifically, the shock-absorbing device 100 further comprises a first multi-stage sealing ring 9, which is sleeved on the outer periphery of the mandrel 210 and located between the upper thrust bearing 4 and the first elastic member 21, so as to further reduce the impact shock to the instrument cabin 300 during drilling.

[0061] Specifically, the shock-absorbing device 100 further comprises a second multi-stage sealing ring 10, which is sleeved on the outer periphery of the instrument cabin 300 and located on the upper side of the lower thrust bearing 5, so as to further reduce the impact shock to the instrument cabin 300 during the lifting of the instrument cabin 300.

[0062] It should be noted that the above two technical features can be set alternatively or simultaneously, and the specific embodiments are described in detail in Figure 1 and Figure 2 In an embodiment of the present application, the above two technical features are set simultaneously, that is, the shock-absorbing device 100 further comprises a first multi-stage sealing ring 9, which is sleeved on the outer periphery of the mandrel 210 and located between the upper thrust bearing 4 and the first elastic member 21; the shock-absorbing device 100 further comprises a second multi-stage sealing ring 10, which is sleeved on the outer periphery of the instrument cabin 300 and located on the upper side of the lower thrust bearing 5; so as to further reduce the shock and protect the structure of the instrument cabin 300 during deep exploration.

[0063] Specifically, please refer to Figure 1 and Figure 2 The outer periphery of the shell 1 is provided with a wear-resistant sleeve 13, so as to enhance the wear resistance of the shell 1. More specifically, the wear-resistant sleeve 13 is formed by coating a wear-resistant material on the outer peripheral wall of the shell 1. Further, based on the above-mentioned embodiment that "the shell 1 comprises an upper protection tube 11 and a lower protection tube 12, the upper protection tube 11 is sleeved in the steel casing 220, and the lower protection tube 12 is movable along the axial direction of the exploration drill rod 200 relative to the upper protection tube 11", the wear-resistant sleeve 13 comprises a first wear-resistant sleeve and a second wear-resistant sleeve, the first wear-resistant sleeve is arranged on the outer periphery of the upper protection tube 11, and the second wear-resistant sleeve is arranged on the outer periphery of the lower protection tube.

[0064] In the present application, a deep exploration device 1000 is also provided, please refer to Figure 1 and Figure 2The deep earth exploration device 1000 comprises a plurality of drill rods, an instrument cabin 300, a drill bit 400 and a damping device 100, the plurality of drill rods are sequentially connected in the up-down direction, the plurality of drill rods comprise a detection drill rod 200 at the bottom end, the instrument cabin 300 comprises a carrier 310 and a detection assembly accommodated in the carrier 310, and the drill bit 400 is arranged at the lower end of the detection drill rod 200.

[0065] It should be noted that the damping device 100 described above adopts the damping device 100 described above, that is, the deep earth exploration device 100 has all the technical features of all the embodiments of the damping device 100 described above, and thus has all the technical effects brought by all the technical features described above, which will not be repeated here.

[0066] Further, the plurality of drill rods comprise a cable passing drill rod, the upper end of the detection drill rod 200 is connected with the cable passing drill rod, the cable in the cable passing drill rod is electrically connected with an external terminal, and the core shaft 210 of the detection drill rod 200 is connected with the joint of the cable passing drill rod, so that the cable in the cable passing drill rod is electrically connected with the detection assembly in the instrument cabin 300.

[0067] Further, referring to Figure 1 and Figure 2 The detection assembly comprises a controller, a video sensor 320, a sonar sensor 330 and a three-dimensional laser radar sensor 340, the controller is electrically connected with an external terminal, the video sensor 320, the sonar sensor 330 and the three-dimensional laser radar sensor 340 are respectively electrically connected with the controller, so that the detection signals obtained by the video sensor 320, the sonar sensor 330 and the three-dimensional laser radar sensor 340 are transmitted to the controller and then transmitted to the external data processing platform to generate detection results.

[0068] More specifically, the external terminal comprises a computer.

[0069] The above description is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made under the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A shock absorbing device for a geophysical prospecting device, the geophysical prospecting device further comprising a plurality of drill pipes, an instrument pod, and a drill bit, the plurality of drill pipes being sequentially connected in a vertical direction, the plurality of drill pipes including a prospecting drill pipe at a bottom end, a core shaft of the prospecting drill pipe having an outer periphery on which the instrument pod is fitted, and a lower end of the prospecting drill pipe being connected to the drill bit, the instrument pod including a carrier and a prospecting assembly housed in the carrier, characterized in that, The shock-absorbing device comprises: a shell, which is sleeved in a steel sleeve of the detection drill rod, sleeved on an outer periphery of a mandrel of the detection drill rod, and arranged on an upper side of the drill bit, at least part of the shell being movable relative to the detection drill rod to have a closed state and an open state, when the shell is in the closed state, the shell is used for sleeving an outer periphery of the instrument cabin, so that the instrument cabin is accommodated in the shell, when the shell is in the open state, at least a detection assembly of the instrument cabin is located outside the shell; a first shock-absorbing assembly, which comprises a first elastic member and a second elastic member, the first elastic member and the second elastic member being spaced apart in sequence along a vertical direction on a side of the instrument cabin away from the drill bit; a second shock-absorbing assembly, which comprises a buffer member, which is arranged in a carrier of the instrument cabin and is used for filling a gap between the detection assembly and the carrier; the shell comprises an upper protection tube and a lower protection tube, the upper protection tube is sleeved in the steel sleeve, the lower protection tube is movable relative to the upper protection tube along an axial direction of the detection drill rod, when the shell is in the closed state, the upper protection tube and the lower protection tube enclose the instrument cabin, when the shell is in the open state, the upper protection tube and the lower protection tube are spaced apart along the axial direction of the detection drill rod, and the detection assembly of the instrument cabin is located between the upper protection tube and the lower protection tube; at least one driving motor and an upper thrust bearing are arranged in the upper protection tube and are sleeved on an outer periphery of the mandrel, the upper thrust bearing is located between the first elastic member and the second elastic member, is fixedly connected with the first elastic member, and is connected with an inner wall of the upper protection tube, the driving motor is drivingly connected with the upper thrust bearing to drive the upper thrust bearing to rotate around an axis of the detection drill rod and drive the mandrel to rotate; a lower thrust bearing is arranged in the lower protection tube, the lower thrust bearing is sleeved on the outer periphery of the mandrel and is arranged at a lower end of the instrument cabin, and is threadedly connected with the lower protection tube, so that when the upper thrust bearing drives the mandrel to rotate, the lower thrust bearing is stressed by the mandrel to rotate and drives the lower protection tube to move close to or away from the upper protection tube.

2. The shock absorbing device of claim 1, wherein The shock-absorbing device further comprises a third shock-absorbing assembly, the third shock-absorbing assembly comprises a third elastic member, and the third elastic member is arranged on a side of the instrument cabin close to the drill bit.

3. The shock absorbing device of claim 1, wherein The length of the first elastic member is greater than the length of the second elastic member.

4. The shock absorbing device of claim 1, wherein The buffer member comprises a rubber member.

5. The shock absorbing device of claim 1, wherein The upper protection tube is slidingly connected with the mandrel, the upper protection tube is provided with a sliding block and a limiting block, the sliding block is sleeved on an outer periphery of the driving motor to fix the driving motor, the limiting block is arranged above the sliding block, and the sliding block is slidable along the axial direction of the detection drill rod between the limiting block and the first elastic member; and / or, The shock-absorbing device further comprises a third shock-absorbing component, which comprises a third elastic member, and a connecting buffer member connected to one side of the lower thrust bearing close to the drill bit, and the third elastic member is fixedly connected to the lower side of the connecting buffer member.

6. The shock absorbing device of claim 1, wherein The shock-absorbing device further comprises a first multi-stage sealing ring, which is sleeved on the outer periphery of the mandrel and located between the upper thrust bearing and the first elastic member; and / or, The shock-absorbing device further comprises a second multi-stage sealing ring, which is sleeved on the outer periphery of the instrument cabin and located on the upper side of the lower thrust bearing.

7. The shock absorbing device of claim 1, wherein The outer periphery of the shell is provided with a wear-resistant sleeve.

8. A deep sounding device, characterized in that The shock-absorbing device comprises: a plurality of drill pipes connected in sequence in the up-down direction, wherein the plurality of drill pipes comprises a detection drill pipe located at the bottom end; an instrument cabin sleeved on the outer periphery of the detection drill pipe, which comprises a carrier and a detection component accommodated in the carrier; a drill bit provided at the lower end of the detection drill pipe; and The shock-absorbing device according to any one of claims 1-7.

Images