A high temperature screw drill transmission device

Abstract

The invention discloses a high-temperature screw drill transmission device, which relates to the technical field of screw drills, and comprises a first casing and a drill monitoring system, wherein the inner wall of the first casing is provided with a spiral groove, a rotor is installed inside the first casing, a second casing is installed on the top surface of the first casing, a guide plate is installed on the inner wall of the second casing, the top surface of the guide plate forms an anti-drop contact surface, a guide groove is provided on the outer surface of the rotor, and a limiting hole is provided on the top surface of the rotor; when mud enters the first casing, the outer surface of the mud will contact the guide groove provided on the outer surface of the rotor, thereby further converting the rotating mud flow rate and pressure into mechanical energy through the guide groove, thereby improving the transmission efficiency, thereby compensating for the fact that the anti-drop device of the high-temperature screw drill transmission device in the prior art only has a single anti-drop function and cannot better convert the mud flow rate and pressure into mechanical energy.

Description

Technical Field

[0001] The invention relates to the technical field of screw drill tools, and in particular to a high-temperature screw drill tool transmission device. Background Art

[0002] Screw drill is a kind of drilling equipment widely used in the fields of oil, natural gas, minerals, etc. Its basic principle is to transmit the rotational power to the drill bit through the rotation of the screw, so as to effectively drill holes in the formation. The main components of the drill include the screw part, connector and drill bit, which are usually made of high-strength alloy steel materials to improve their wear resistance and pressure resistance. Screw drill has high drilling efficiency and stability, and is especially suitable for drilling operations in deep wells, complex formations and alternating soft and hard layers. Its design adopts a spiral feeding method, and the drill bit is pushed into the ground through the rotation of the screw to achieve higher drilling speed and efficiency.

[0003] The screw drill transmission device of the prior art generally converts the pressure and flow rate of the mud into mechanical energy, and the threaded grooves on the outer surface of the rotor contact the flowing mud, so that the flowing mud drives the rotor to rotate on the inner wall of the stator, and then drives the universal shaft and the transmission shaft to rotate, so that the drill bit installed at one end of the transmission shaft can be continuously rotated for geological exploration activities. However, since the screw drill of the prior art generally has an anti-drop structure, and the anti-drop structure of the prior art can only play a single anti-drop function when the drill is broken, it is impossible to better convert the flow rate and pressure of the mud into mechanical energy, and the only way is to further increase the length of the rotor to improve the transmission efficiency;

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to: when the mud enters the first casing, the outer surface of the mud will contact the guide groove opened on the outer surface of the rotor, so that the rotating mud flow rate and pressure can be further converted into mechanical energy through the guide groove, thereby improving the transmission efficiency, thereby compensating for the problem that the anti-drop device of the high-temperature screw drilling tool transmission device in the prior art only has a single anti-drop function and cannot better convert the mud flow rate and pressure into mechanical energy.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a high-temperature screw drill transmission device, comprising a first casing and a drill monitoring system, the inner wall of the casing is provided with a spiral groove, a rotor is installed inside the first casing, a second casing is installed on the top surface of the first casing, a guide plate is installed on the inner wall of the second casing, the top surface of the guide plate forms an anti-drop contact surface, a guide groove is provided on the outer surface of the rotor, a limiting hole is provided on the top surface of the rotor, an anti-drop rod is installed on the inner wall of the limiting hole, a damping rod is installed on the bottom surface of the anti-drop rod, an efficiency groove is provided on the outer surface of the anti-drop rod, an anti-drop block is installed on the top surface of the anti-drop rod, a safety plate is installed on the outer surface of the rotor, a damping assembly is installed on the inner wall of the rotor, and a transmission assembly is installed on the bottom surface of the first casing.

[0007] Furthermore, the outer surface of the first sleeve is rotatably connected to the inner wall of the second sleeve via a thread, the top surface of the shock-absorbing rod is fixedly connected to the bottom surface of the anti-drop rod, and the safety plates are four annular arrays equidistantly distributed on the outer surface of the rotor, and the top surface of the shock-absorbing rod and the bottom surface of the safety plate are in contact with each other.

[0008] Furthermore, there are a plurality of guide plates, which are equidistantly distributed in a circular array on the inner wall of the second sleeve, and flow grooves are formed between the guide plates. The top surface of the anti-drop contact surface is in active contact with the bottom surface of the anti-drop block, and one end of the shock-absorbing rod extends to the inner wall of the limiting hole, and the outer surface of the shock-absorbing rod is in sliding contact with the inner wall of the limiting hole.

[0009] Furthermore, the shock-absorbing assembly includes an installation groove, a damper is installed on the inner wall of the installation groove, a movable groove is opened on the outer surface of the shock-absorbing rod, a pressure plate is installed on the top surface of the damper, a shock-absorbing spring is installed on the bottom surface of the pressure plate, a limiting groove is opened on the inner wall of the rotor, and the installation groove is opened on the inner surface of the shock-absorbing rod.

[0010] Furthermore, there are four movable grooves, which are equidistantly distributed in a circular array on the outer surface of the shock-absorbing rod, the top surface of the damper is fixedly connected to the bottom surface of the pressure plate, the top surface of the shock-absorbing spring is in movable contact with the bottom surface of the pressure plate, the bottom surface of the shock-absorbing spring is in movable contact with the bottom surface of the limiting groove, the outer surface of the pressure plate is in sliding contact with the limiting groove, and the inner wall of the pressure plate is in sliding contact with the inner wall of the movable groove.

[0011] Furthermore, the transmission assembly includes a third sleeve, a universal shaft is installed at the bottom end of the third sleeve, a fourth sleeve is installed on the bottom end surface of the third sleeve, a bearing is installed on the inner wall of the fourth sleeve, a transmission shaft is installed on the inner wall of the bearing, and the third sleeve is installed on the bottom end surface of the first sleeve.

[0012] Furthermore, one end of the third sleeve is rotatably connected to the inner wall of the first sleeve via a thread, the other end of the third sleeve is rotatably connected to one end of the fourth sleeve via a thread, and one end of the universal shaft is fixedly connected to one end of the transmission shaft via a thread.

[0013] Furthermore, there are a plurality of bearings, which are evenly distributed in a linear array on the inner wall of the fourth sleeve, the outer surfaces of a plurality of bearings are fixedly connected to the inner wall of the fourth sleeve, and the inner walls of a plurality of bearings are movably and rotatably connected to the inner wall of the transmission shaft.

[0014] Furthermore, the drilling tool monitoring system includes a model building unit, a data collection unit, a state evaluation unit, and an alarm unit;

[0015] The model building unit is used to obtain historical data of screw drill tools in the field of exploration and mining, wherein the historical data of screw drill tools include historical operation data of screw drill tools and historical fracture records of screw drill tools, and create a screw historical data sample set by analyzing and processing the historical operation data and historical fracture records, and create a screw fracture prediction model based on the historical data sample set, wherein the historical data of screw drill tools include rotation speed, temperature, pressure, and operation time, and the historical fracture records of screw drill tools include fracture time.

[0016] The data collection unit is used to obtain the real-time data of the currently used screw through the pressure sensor, temperature sensor, and photoelectric sensor. The real-time data of the screw includes the real-time speed Lm, the real-time temperature Rm, the real-time pressure Zm, and the real-time running time Hm, and sends it to the state evaluation unit;

[0017] The state evaluation unit is used to obtain the real-time data of the screw and analyze and process it, obtain the real-time evaluation coefficient of the screw by calculation and import the real-time evaluation coefficient of the screw into the service life prediction model, output the estimated fracture time, judge the estimated fracture time according to the preset maintenance cycle to generate a disconnection warning signal and send it to the alarm unit;

[0018] The alarm unit is used to obtain and process fracture warning signals and control the remote alarm system to issue alarm prompts to the staff.

[0019] Furthermore, the specific process of generating a fracture warning signal is as follows:

[0020] S1: Obtain historical data of screw drilling tools from the network database, average several groups of speed L, temperature R, pressure Z, and running time H to obtain the average speed Lq, average temperature Rq, average pressure Zq, and average running time Hq;

[0021] S2: Calculate the screw operation evaluation coefficient Wi according to the following formula: , where wl represents the weight value of the average speed, wr represents the weight value of the average temperature, wz represents the weight value of the average pressure, and wh represents the weight value of the average running time;

[0022] S3: Establish a two-dimensional coordinate system with the screw drill's historical screw usage time T as the horizontal coordinate and the screw operation evaluation coefficient Wi as the vertical coordinate. Mark the screw operation evaluation coefficient Wi one by one on the two-dimensional coordinate system to obtain operation coefficient points. Connect several operation coefficient points through a smooth curve to obtain an operation fluctuation curve.

[0023] S4: Obtain several groups of fracture time D and mark them one by one on the standard two-dimensional coordinate system. If there is no fracture, no mark will be made. The maximum and minimum values ​​of the fracture time D are taken as the fracture period Dh (T1, T2);

[0024] S5: Obtain a sample set of historical data and establish a service life prediction model through a machine learning algorithm;

[0025] S6: Obtain the real-time data of the screw and calculate the real-time evaluation coefficient Wz of the screw: , where wl also represents the weight value of the real-time speed, wr also represents the weight value of the real-time temperature, wz also represents the weight value of the real-time pressure, wh also represents the weight value of the real-time running time, Lm represents the real-time speed, Rm represents the real-time temperature, Zm represents the real-time pressure, and Hm represents the real-time running time;

[0026] S7: Import the screw real-time evaluation coefficient Wz into the service life prediction model, output the estimated fracture time, and judge the estimated fracture time according to the preset maintenance cycle. If the estimated fracture time is greater than or equal to the maintenance cycle, no signal is generated;

[0027] If the estimated fracture time is less than the maintenance period, a fracture warning signal is generated.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] The high-temperature screw drill transmission device, when the mud enters the first casing, the outer surface of the mud will contact the guide groove opened on the outer surface of the rotor, thereby further converting the rotating mud flow rate and pressure into mechanical energy through the guide groove, thereby improving the transmission efficiency, thereby compensating for the fact that the anti-drop device of the high-temperature screw drill transmission device in the prior art only has a single anti-drop function and cannot better convert the mud flow rate and pressure into mechanical energy.

[0030] The high-temperature screw drill transmission device will squeeze the shock-absorbing spring through the pressure plate when the rotor slides downward. At this time, the shock-absorbing spring will absorb part of the vibration force, thereby preventing the screw drill from being severely impacted when it falls and causing secondary damage. The bottom surface of the pressure plate is fixedly connected to the top surface of the damper, so when the screw drill breaks, the damper will further absorb the aftershock of the shock-absorbing spring, thereby achieving a buffering effect and reducing secondary damage when the screw drill breaks. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The overall external structure schematic diagram of the present invention is shown;

[0032] Figure 2 The overall internal structure schematic diagram of the present invention is shown;

[0033] Figure 3 A schematic diagram of the internal structure of the first sleeve of the present invention is shown;

[0034] Figure 4 A schematic diagram of the rotor structure of the present invention is shown;

[0035] Figure 5 A schematic diagram of the internal structure of the transmission assembly of the present invention is shown;

[0036] Figure 6 A schematic diagram of the internal structure of the rotor of the present invention is shown;

[0037] Figure 7 A schematic diagram of the structure of the shock absorbing rod of the present invention is shown;

[0038] Figure 8 A schematic diagram of the internal structure of the shock absorbing rod of the present invention is shown;

[0039] Fig. 9 A schematic diagram of the internal structure of the rotor of the present invention is shown;

[0040] Fig.10 The present invention shows Figure 3 A schematic diagram of the structure enlargement in the middle;

[0041] Fig.11 The flowchart of the drilling tool monitoring system of the present invention is shown.

[0042] Legend: 1. First sleeve; 2. Spiral groove; 3. Rotor; 4. Second sleeve; 5. Guide vane; 6. Anti-drop contact surface; 7. Guide groove; 8. Limit hole; 9. Anti-drop rod; 10. Shock-absorbing rod; 11. Efficiency groove; 12. Anti-drop block; 13. Safety plate; 14. Mounting groove; 15. Damper; 16. Moving groove; 17. Pressure plate; 18. Shock-absorbing spring; 19. Limit groove; 20. Third sleeve; 21. Universal joint; 22. Fourth sleeve; 23. Bearing; 24. Drive shaft; 25. Flow groove. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0044] like Figure 1-10 As shown, a high-temperature screw drill transmission device includes a first casing 1 and a drilling tool monitoring system, a spiral groove 2 is provided on the inner wall of the first casing 1, a rotor 3 is installed inside the first casing 1, a second casing 4 is installed on the top surface of the first casing 1, a guide plate 5 is installed on the inner wall of the second casing 4, and an anti-drop contact surface 6 is formed on the top surface of the guide plate 5, a guide groove 7 is provided on the outer surface of the rotor 3, a limiting hole 8 is provided on the top surface of the rotor 3, an anti-drop rod 9 is installed on the inner wall of the limiting hole 8, a damping rod 10 is installed on the bottom surface of the anti-drop rod 9, an efficiency groove 11 is provided on the outer surface of the anti-drop rod 9, an anti-drop block 12 is installed on the top surface of the anti-drop rod 9, a safety plate 13 is installed on the outer surface of the rotor 3, a damping assembly is installed on the inner wall of the rotor 3, and a transmission assembly is installed on the bottom surface of the first casing 1.

[0045] The outer surface of the first sleeve 1 is rotatably connected to the inner wall of the second sleeve 4 through a threaded connection, the top surface of the shock-absorbing rod 10 is fixedly connected to the bottom surface of the anti-drop rod 9, and the safety plate 13 is four circular arrays equidistantly distributed on the outer surface of the rotor 3, and the top surface of the shock-absorbing rod 10 and the bottom surface of the safety plate 13 are in contact with each other.

[0046] There are a plurality of guide vanes 5, which are equidistantly distributed in a circular array on the inner wall of the second sleeve 4, and a flow groove 25 is formed between the guide vanes 5. The top surface of the anti-drop contact surface 6 is in active contact with the bottom surface of the anti-drop block 12. One end of the shock-absorbing rod 10 extends to the inner wall of the limiting hole 8, and the outer surface of the shock-absorbing rod 10 is in sliding contact with the inner wall of the limiting hole 8.

[0047] The shock-absorbing assembly includes a mounting groove 14, a damper 15 is installed on the inner wall of the mounting groove 14, a movable groove 16 is opened on the outer surface of the shock-absorbing rod 10, a pressure plate 17 is installed on the top surface of the damper 15, a shock-absorbing spring 18 is installed on the bottom surface of the pressure plate 17, a limiting groove 19 is opened on the inner wall of the rotor 3, and the mounting groove 14 is opened on the inner surface of the shock-absorbing rod 10.

[0048] There are four movable grooves 16, which are equidistantly distributed in a circular array on the outer surface of the shock-absorbing rod 10. The top surface of the damper 15 is fixedly connected to the bottom surface of the pressure plate 17, the top surface of the shock-absorbing spring 18 is in movable contact with the bottom surface of the pressure plate 17, the bottom surface of the shock-absorbing spring 18 is in movable contact with the bottom surface of the limit groove 19, the outer surface of the pressure plate 17 is in sliding contact with the limit groove 19, and the inner wall of the pressure plate 17 is in sliding contact with the inner wall of the movable groove 16.

[0049] The transmission assembly includes a third sleeve 20, a universal shaft 21 is installed at the bottom end of the third sleeve 20, a fourth sleeve 22 is installed on the bottom end surface of the third sleeve 20, a bearing 23 is installed on the inner wall of the fourth sleeve 22, a transmission shaft 24 is installed on the inner wall of the bearing 23, and the third sleeve 20 is installed on the bottom end surface of the first sleeve 1.

[0050] One end of the third sleeve 20 is rotatably connected to the inner wall of the first sleeve 1 through a thread, the other end of the third sleeve 20 is rotatably connected to one end of the fourth sleeve 22 through a thread, and one end of the universal shaft 21 is fixedly connected to one end of the transmission shaft 24 through a thread.

[0051] There are a plurality of bearings 23 equidistantly distributed in a linear array on the inner wall of the fourth sleeve 22 , the outer surfaces of a plurality of bearings 23 are fixedly connected to the inner wall of the fourth sleeve 22 , and the inner walls of a plurality of bearings 23 are movably and rotatably connected to the inner wall of the transmission shaft 24 .

[0052] Usage process: when it is necessary to use a high-temperature screw drill transmission device, the top surface of the second casing 4 is connected to the drill string. When the connection is completed, the length of the drill string is increased to extend the screw drill into the ground. When the screw drill is used, mud is input into the screw drill. When the mud is input into the drill string, the mud will flow into the second casing 4 and contact the top of the anti-drop block 12. At this time, the mud will flow into the gap between the anti-drop block 12 and the second casing 4, and move to one side surface of the anti-drop rod 9. The mud will have a certain pressure when it is input into the drill string, so when the mud flows to one side surface of the anti-drop rod 9, the high-pressure mud will contact the anti-drop block 12. The efficiency grooves 11 opened on the outer surface of the anti-drop rod 9 are in contact with each other, and the efficiency groove 11 is spiral, so when high-pressure mud flows through, the anti-drop rod 9 and the efficiency groove 11 will convert the hydraulic energy of the mud into mechanical energy, so that the anti-drop rod 9 drives the rotor 3 to rotate on the inner wall of the first casing 1, and the anti-drop rod 9 will stir the mud when the inner wall of the second casing 4 rotates, so that the input mud rotates and moves downward. When the mud moves to the end of the second casing 4, the rotating downward mud will contact the guide vane 5, and the guide vane 5 is arranged in a ring on the inner wall of the second casing 4, and a flow groove 25 is formed between the guide vanes 5, so when rotating When the downward mud moves along the inside of the second casing 4, the mud will flow through the flow groove 25 and flow into the inside of the first casing 1, and the diameter of the guide vane 5 distributed in an annular shape is smaller than that of the second casing 4, so the flow velocity of the mud increases when it flows to one side surface of the guide vane 5, and the momentum also increases accordingly, which will cause the mud to be subjected to greater pressure when passing through the guide vane 5, thereby increasing the flow force, thereby causing the mud to generate a higher pressure when it is extruded, and the mud in contact with the flow groove 25 will be rotated and input into the inner wall of the first casing 1 due to the guidance of the flow groove 25 when being extruded. When the mud enters the first casing 1, the outer surface of the mud will contact the outer surface of the rotor 3 The guide grooves 7 are in contact with each other, so that the rotating mud flow rate and pressure are further converted into mechanical energy through the guide grooves 7, thereby improving the transmission efficiency. The rotor 3 is connected to the universal shaft 21. When the rotor 3 rotates on the inner wall of the first casing 1, the rotor 3 will drive the universal shaft 21 to rotate on the inner wall of the third casing 20, and then drive the drill rod and the drill bit to rotate for exploration through the rotating universal shaft 21 and the transmission shaft 24. The outer surface of the transmission shaft 24 is movably connected to the outer surface of the bearing 23. Therefore, when the transmission shaft 24 rotates, the bearing 23 will provide a stable rotational force for the transmission shaft 24 on the inner wall of the fourth casing 22 to realize the transmission function.

[0053] When the screw drill tool suddenly breaks, the rotor 3 and the anti-drop rod 9 will fall downward, and the top surface of the anti-drop rod 9 is equipped with an anti-drop block 12. At this time, the anti-drop block 12 will move downward with the anti-drop rod 9. During the falling process, the bottom surface of the anti-drop block 12 will contact the anti-drop contact surface 6 formed on the top surface of the guide plate 5, and the circular anti-drop contact surface 6 formed by the circular guide plate 5 will block the anti-drop block 12 from continuing to fall, thereby preventing the rotor 3 and the lower part of the screw drill tool from continuing to fall through the anti-drop block 12. At the moment when the bottom surface of the anti-drop block 12 contacts the anti-drop contact surface 6, due to the falling of the drilling tool, the anti-drop block 12 will collide with the anti-drop contact surface 6, and the rotor 3 will be subjected to violent vibration. When the vibration is too large, the safety plate 13 installed on the top surface of the rotor 3 will break, and the anti-drop rod 9 will lose the obstruction of the safety plate 13, thereby driving the shock-absorbing rod 10 to slide from the inner wall of the limiting hole 8 The anti-drop rod 9 and the shock absorbing rod 10 will not continue to fall because they are blocked by the anti-drop block 12, and the rotor 3 will continue to slide downward because of the breakage of the safety plate 13. The inner wall of the rotor 3 is provided with a limiting groove 19, so when the rotor 3 continues to fall, the limiting groove 19 will squeeze the pressure plate 17, and the bottom end of the pressure plate 17 and the top surface of the shock absorbing spring 18 are in contact with each other. Therefore, when the rotor 3 slides downward, the shock absorbing spring 18 will be squeezed through the pressure plate 17. At this time, the shock absorbing spring 18 will absorb part of the vibration force, thereby preventing the screw drill from being severely hit when it falls and causing secondary damage. The bottom end surface of the pressure plate 17 is fixedly connected to the top surface of the damper 15, so when the screw drill is broken, the damper 15 will further absorb the aftershock of the shock absorbing spring 18, thereby achieving a buffering effect and reducing secondary damage when the screw drill is broken. Example 2

[0054] like Figure 4 As shown, a high-temperature screw drill transmission device includes a first casing 1 and a drill monitoring system, wherein the drill monitoring system includes a model building unit, a data collection unit, a state evaluation unit, and an alarm unit;

[0055] The model building unit is used to obtain historical data of screw drill tools in the field of exploration and mining, wherein the historical data of screw drill tools include historical operation data of screw drill tools and historical fracture records of screw drill tools, and create a screw historical data sample set by analyzing and processing the historical operation data and historical fracture records, and create a screw fracture prediction model based on the historical data sample set, wherein the historical data of screw drill tools include rotation speed, temperature, pressure, and operation time, and the historical fracture records of screw drill tools include fracture time.

[0056] The data collection unit is used to obtain the real-time data of the currently used screw through the pressure sensor, temperature sensor, and photoelectric sensor. The real-time data of the screw includes the real-time speed Lm, the real-time temperature Rm, the real-time pressure Zm, and the real-time running time Hm, and sends it to the state evaluation unit;

[0057] The state evaluation unit is used to obtain the real-time data of the screw and analyze and process it, obtain the real-time evaluation coefficient of the screw by calculation and import the real-time evaluation coefficient of the screw into the service life prediction model, output the estimated fracture time, judge the estimated fracture time according to the preset maintenance cycle to generate a disconnection warning signal and send it to the alarm unit;

[0058] The alarm unit is used to obtain and process fracture warning signals and control the remote alarm system to issue alarm prompts to the staff.

[0059] The specific process of generating fracture warning signals is as follows:

[0060] S1: Obtain historical data of screw drilling tools from the network database, average several groups of speed L, temperature R, pressure Z, and running time H to obtain the average speed Lq, average temperature Rq, average pressure Zq, and average running time Hq;

[0061] S2: Calculate the screw operation evaluation coefficient Wi according to the following formula: , where wl represents the weight value of the average speed, wr represents the weight value of the average temperature, wz represents the weight value of the average pressure, and wh represents the weight value of the average running time;

[0062] S3: Establish a two-dimensional coordinate system with the screw drill's historical screw usage time T as the horizontal coordinate and the screw operation evaluation coefficient Wi as the vertical coordinate. Mark the screw operation evaluation coefficient Wi one by one on the two-dimensional coordinate system to obtain operation coefficient points. Connect several operation coefficient points through a smooth curve to obtain an operation fluctuation curve.

[0063] S4: Obtain several groups of fracture time D and mark them one by one on the standard two-dimensional coordinate system. If there is no fracture, no mark will be made. The maximum and minimum values ​​of the fracture time D are taken as the fracture period Dh (T1, T2);

[0064] S5: Obtain a sample set of historical data and establish a service life prediction model through a machine learning algorithm;

[0065] S6: Obtain the real-time data of the screw and calculate the real-time evaluation coefficient Wz of the screw: , where wl also represents the weight value of the real-time speed, wr also represents the weight value of the real-time temperature, wz also represents the weight value of the real-time pressure, wh also represents the weight value of the real-time running time, Lm represents the real-time speed, Rm represents the real-time temperature, Zm represents the real-time pressure, and Hm represents the real-time running time;

[0066] S7: Import the screw real-time evaluation coefficient Wz into the service life prediction model, output the estimated fracture time, and judge the estimated fracture time according to the preset maintenance cycle. If the estimated fracture time is greater than or equal to the maintenance cycle, no signal is generated;

[0067] If the estimated fracture time is less than the maintenance period, a fracture warning signal is generated.

[0068] The size of the interval and threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technical personnel in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0069] The above formulas are all dimensionless and numerical calculations. The formula is a formula obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formula are set by technicians in this field according to actual conditions.

[0070] In the two embodiments provided in the present application, it should be understood that the disclosed devices and systems can be implemented in other ways; for example, the device embodiments described above are only schematic, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed; another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, the indirect coupling or communication connection of devices or modules can be electrical, mechanical or other forms;

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-temperature screw drill transmission device, comprising a first casing (1) and a drill monitoring system, wherein the inner wall of the first casing (1) is provided with a spiral groove (2), characterized in that: A rotor (3) is installed inside the first sleeve (1); a second sleeve (4) is installed on the top surface of the first sleeve (1); a guide plate (5) is installed on the inner wall of the second sleeve (4); the top surface of the guide plate (5) forms an anti-drop contact surface (6); a guide groove (7) is provided on the outer surface of the rotor (3); a limit hole (8) is provided on the top surface of the rotor (3); an anti-drop rod (9) is installed on the inner wall of the limit hole (8); a damping rod (10) is installed on the bottom surface of the anti-drop rod (9); an efficiency groove (11) is provided on the outer surface of the anti-drop rod (9); an anti-drop block (12) is installed on the top surface of the anti-drop rod (9); a safety plate (13) is installed on the outer surface of the rotor (3); a damping assembly is installed on the inner wall of the rotor (3); and a transmission assembly is installed on the bottom surface of the first sleeve (1); The outer surface of the first sleeve (1) is rotatably connected to the inner wall of the second sleeve (4) via a thread, the top surface of the shock absorbing rod (10) is fixedly connected to the bottom surface of the anti-drop rod (9), the safety plates (13) are four annular arrays equidistantly distributed on the outer surface of the rotor (3), and the top surface of the shock absorbing rod (10) and the bottom surface of the safety plates (13) are in contact with each other; There are a plurality of guide plates (5), which are equidistantly distributed in a circular array on the inner wall of the second sleeve (4), a flow groove (25) is formed between the guide plates (5), the top surface of the anti-drop contact surface (6) is in active contact with the bottom surface of the anti-drop block (12), one end of the damping rod (10) extends to the inner wall of the limiting hole (8), and the outer surface of the damping rod (10) is in sliding contact with the inner wall of the limiting hole (8); The shock absorbing assembly comprises a mounting groove (14), a damper (15) is mounted on the inner wall of the mounting groove (14), a movable groove (16) is provided on the outer surface of the shock absorbing rod (10), a pressure plate (17) is mounted on the top surface of the damper (15), a shock absorbing spring (18) is mounted on the bottom surface of the pressure plate (17), a limiting groove (19) is provided on the inner wall of the rotor (3), and the mounting groove (14) is provided on the inner surface of the shock absorbing rod (10).

2. The high temperature screw drill transmission device according to claim 1, characterized in that: There are four movable grooves (16), and the four movable grooves (16) are equidistantly distributed in a circular array on the outer surface of the shock absorbing rod (10); the top surface of the damper (15) is fixedly connected to the bottom surface of the pressure plate (17); the top surface of the shock absorbing spring (18) is in movable contact with the bottom surface of the pressure plate (17); the bottom surface of the shock absorbing spring (18) is in movable contact with the bottom surface of the limiting groove (19); the outer surface of the pressure plate (17) is in sliding contact with the limiting groove (19); and the inner wall of the pressure plate (17) is in sliding contact with the inner wall of the movable groove (16).

3. The high temperature screw drill transmission device according to claim 1, characterized in that: The transmission assembly comprises a third sleeve (20), a universal shaft (21) being mounted on the bottom end of the third sleeve (20), a fourth sleeve (22) being mounted on the bottom surface of the third sleeve (20), a bearing (23) being mounted on the inner wall of the fourth sleeve (22), a transmission shaft (24) being mounted on the inner wall of the bearing (23), and the third sleeve (20) being mounted on the bottom surface of the first sleeve (1).

4. The high temperature screw drill transmission device according to claim 3, characterized in that: One end of the third sleeve (20) is movably and rotatably connected to the inner wall of the first sleeve (1) via a thread, the other end of the third sleeve (20) is movably and rotatably connected to one end of the fourth sleeve (22) via a thread, and one end of the universal shaft (21) is fixedly connected to one end of the transmission shaft (24) via a thread.

5. The high temperature screw drill transmission device according to claim 3, characterized in that: There are a plurality of bearings (23), and the plurality of bearings (23) are distributed in a linear array at equal intervals on the inner wall of the fourth sleeve (22); the outer surfaces of the plurality of bearings (23) are fixedly connected to the inner wall of the fourth sleeve (22); and the inner walls of the plurality of bearings (23) are movably and rotatably connected to the inner wall of the transmission shaft (24).

6. The high temperature screw drill transmission device according to claim 1, characterized in that: The drilling tool monitoring system includes a model building unit, a data collection unit, a state evaluation unit, and an alarm unit; The model building unit is used to obtain historical data of screw drill tools in the field of exploration and mining, wherein the historical data of screw drill tools include historical operation data of screw drill tools and historical fracture records of screw drill tools, and create a screw historical data sample set by analyzing and processing the historical operation data and the historical fracture records, and create a screw fracture prediction model based on the historical data sample set, wherein the historical data of screw drill tools include rotation speed, temperature, pressure, and operation time, and the historical fracture records of screw drill tools include fracture time; The data collection unit is used to obtain the real-time data of the currently used screw through the pressure sensor, temperature sensor, and photoelectric sensor. The real-time data of the screw includes the real-time speed Lm, the real-time temperature Rm, the real-time pressure Zm, and the real-time running time Hm, and sends it to the state evaluation unit; The state evaluation unit is used to obtain the real-time data of the screw and analyze and process it, obtain the real-time evaluation coefficient of the screw by calculation and import the real-time evaluation coefficient of the screw into the service life prediction model, output the estimated fracture time, judge the estimated fracture time according to the preset maintenance cycle to generate a disconnection warning signal and send it to the alarm unit; The alarm unit is used to obtain and process fracture warning signals and control the remote alarm system to issue alarm prompts to the staff.

7. The high temperature screw drill transmission device according to claim 6, characterized in that: The specific process of generating fracture warning signals is as follows: S1: Obtain historical data of screw drilling tools from the network database, average several groups of speed L, temperature R, pressure Z, and running time H to obtain the average speed Lq, average temperature Rq, average pressure Zq, and average running time Hq; S2: Calculate the screw operation evaluation coefficient Wi according to the following formula: , where wl represents the weight value of the average speed, wr represents the weight value of the average temperature, wz represents the weight value of the average pressure, and wh represents the weight value of the average running time; S3: Establish a two-dimensional coordinate system with the screw drill's historical screw usage time T as the horizontal coordinate and the screw operation evaluation coefficient Wi as the vertical coordinate. Mark the screw operation evaluation coefficient Wi one by one on the two-dimensional coordinate system to obtain operation coefficient points. Connect several operation coefficient points through a smooth curve to obtain an operation fluctuation curve. S4: Obtain several groups of fracture time D and mark them one by one on the standard two-dimensional coordinate system. If there is no fracture, no mark will be made. The maximum and minimum values ​​of the fracture time D are taken as the fracture period Dh (T1, T2); S5: Obtain a sample set of historical data and establish a service life prediction model through a machine learning algorithm; S6: Obtain the real-time data of the screw and calculate the real-time evaluation coefficient Wz of the screw: , where wl also represents the weight value of the real-time speed, wr also represents the weight value of the real-time temperature, wz also represents the weight value of the real-time pressure, wh also represents the weight value of the real-time running time, Lm represents the real-time speed, Rm represents the real-time temperature, Zm represents the real-time pressure, and Hm represents the real-time running time; S7: Import the screw real-time evaluation coefficient Wz into the service life prediction model, output the estimated fracture time, and judge the estimated fracture time according to the preset maintenance cycle. If the estimated fracture time is greater than or equal to the maintenance cycle, no signal is generated; If the estimated fracture time is less than the maintenance period, a fracture warning signal is generated.

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