Impact test device for alloy teeth of roller bit

Abstract

The invention relates to a roller bit alloy tooth impact test device, and relates to the technical field of roller bits, the roller bit alloy tooth impact test device comprises a rack and a mounting block arranged on the rack in a lifting manner, a roller is rotatably mounted on the mounting block, and the rotation axis of the roller is obliquely arranged along the height direction of the rack; the rack is provided with a lifting piece for driving the mounting block to lift and a rotating piece for driving the cone to rotate, and the rack is also provided with a positioning assembly for positioning the alloy teeth on the cone and an impact assembly for performing an impact test on the alloy teeth. The impact test device has the effects of simulating the impact force borne by the alloy tooth under the actual working condition, improving the accuracy and reliability of the test result and improving the efficiency of the impact test at the same time.

Description

Technical Field

[0001] This application relates to the technical field of roller bits, and in particular to an impact test device for roller bit alloy teeth. Background Art

[0002] A roller bit is a widely used drilling bit. By applying a rotational torque and an axial static pressure to the bit body, the bit body rotates and drives the roller to rotate. Multiple alloy teeth are embedded on the roller, and the multiple alloy teeth are evenly arranged along the conical surface of the roller to form multiple rows of tooth rings, so that the alloy teeth on the roller alternately contact the bottom of the well and press into the formation, realizing the crushing of the formation by the alloy teeth in forms such as chiseling, shearing, and scraping.

[0003] To ensure that the alloy teeth can withstand sufficient impact during the drilling process without fracture or severe wear, reduce the risk of roller bit failure, and reduce the trial-and-error cost in the actual drilling process, a drop hammer impact test device is often used to conduct an impact test on the alloy teeth to evaluate the impact performance of the alloy teeth. During the test, technicians fix the alloy tooth sample on the drop hammer impact test device, raise the heavy hammer to a set height, apply an impact load to the alloy teeth through the freely falling heavy hammer, and then technicians evaluate the impact performance of the alloy teeth by observing the wear, cracks, or fractures of the alloy teeth. Technicians adjust the mass and height of the heavy hammer to simulate the change in the impact force on the alloy teeth when the alloy teeth break different material formations; At the same time, a Chinese patent document with a publication number of CN222049508U discloses an impact test device for roller bit alloy teeth, including a base, a guide cylinder fixed on the base, and an impact rod that freely falls coaxially in the guide cylinder. A first alloy tooth fixing block is installed on the base, and a second alloy tooth fixing block is fixed by threading at the bottom of the impact rod. Technicians can replace the first alloy tooth fixing block and the second alloy tooth fixing block to adjust the fixing angle of the alloy teeth, and then technicians lift the impact rod to a set height and make the impact rod freely fall to simulate the axial impact force of alloy teeth along the axis of the bit body at different inclination angles.

[0004] In view of the above related technologies, when the alloy teeth break the bottom formation of the well, due to the rotational torque and axial static pressure applied to the bit body, the alloy teeth are not only subjected to an axial impact force along the axis of the bit body, but also due to the rotation of the roller, the alloy teeth are subjected to an impact force along the tangential direction of the roller rotation. It is not easy to simulate the tangential impact force received by the alloy teeth through the existing technology, and it is not easy to comprehensively evaluate the impact performance of the alloy teeth, reducing the reliability of the test results; during the test, in order to make the inclination angle of the alloy teeth consistent with the actual arrangement on the roller to improve the accuracy of the impact test, technicians need to adjust the angle and fix each alloy tooth at different positions one by one, resulting in low test efficiency, so there is room for improvement. Summary of the Invention

[0005] In order to simulate the impact force received by the alloy teeth under the actual working conditions, improve the accuracy and reliability of the test results, and at the same time improve the efficiency of the impact test, the present application provides an impact test device for the alloy teeth of a roller bit.

[0006] The impact test device for the alloy teeth of a roller bit provided by the present application adopts the following technical solutions: An impact test device for the alloy teeth of a roller bit includes a frame and a mounting block that is vertically arranged on the frame. A roller bit is rotatably mounted on the mounting block, and the rotation axis of the roller bit is inclined along the height direction of the frame. The frame is provided with a lifting member for driving the mounting block to lift and a rotary member for driving the roller bit to rotate. The frame is also provided with a positioning assembly for positioning the position of the alloy teeth on the roller bit and an impact assembly for performing an impact test on the alloy teeth; The positioning assembly includes a movable block that is slidably arranged on the frame. A positioning block is rotatably arranged on the movable block. A positioning rod is slidably arranged on the positioning block. The positioning rod includes two oppositely arranged abutting rods. One end of the abutting rod is hemispherical and is movably abutted against the side wall of the alloy tooth. When the abutting rod is separated from the alloy tooth, the hemispherical ends of the two abutting rods are movably abutted against each other. The frame is provided with a video monitoring module for monitoring the abutting rod and the alloy tooth and an adjusting member for driving the abutting rods to slide close to / away from each other. The frame is also provided with a driving member for driving the movable block to slide and driving the positioning block to rotate; The impact assembly includes an impact block that is slidably arranged on the movable block. The side wall of the impact block close to the alloy tooth is arc-shaped, and the arc side of the impact block is movably abutted against the alloy tooth. The movable block is provided with a tightening member for applying an adjustable torque to the impact block. The tightening member, the adjusting member, the rotary member, the driving member, and the lifting member are all electrically connected to the video monitoring module.

[0007] By adopting the above technical solutions, when an impact test needs to be performed on the alloy teeth, the technician rotatably mounts the roller bit on the mounting block, and then the technician starts the device. The driving member drives the movable block to slide until the video monitoring module monitors that the positioning block is directly below one row of alloy teeth on the roller bit. At this time, the adjusting member always makes the two groups of abutting rods slide close to each other and keeps the hemispherical ends of the two abutting rods in each group abutted against each other. This is the initial state of the abutting rods.

[0008] Then the rotating part drives the roller bit to rotate slowly until a carbide tooth directly above the abutting rod is corresponding to the abutting rod monitored by the video monitoring module. Then the video monitoring module controls the lifting part to drive the mounting block and the roller bit to descend, so that the side wall of the corresponding carbide tooth abuts tightly against the hemispherical end of the abutting rod, and drives the two abutting rods to slide away from each other. At the same time, the video monitoring module controls the driving part to work, drives the movable block to slide and drives the positioning block to rotate, and makes the sliding distances of the two oppositely arranged abutting rods keep consistent until the sliding distances of the two abutting rods no longer change. At this time, the impact block corresponds to the carbide tooth, and the sliding direction of the abutting rod is perpendicular to the inclination angle direction of the corresponding carbide tooth.

[0009] Since the size of the abutting rod is small and it is not easy to install a displacement sensor, the video monitoring module provided at this time is convenient for monitoring the sliding distances of the two abutting rods. At the same time, through the rotation angle of the positioning block, the inclination angle of the carbide tooth can be obtained. By analyzing the movement trajectory of the abutting rod by the video monitoring module, the distance between the top end of the carbide tooth and the impact block can be obtained, realizing the positioning of a row of carbide teeth. At this time, it is the positioning state of the abutting rod. By repeating the above steps, the positioning of multiple rows of carbide teeth is realized.

[0010] Then, multiple rows of carbide teeth are repositioned in sequence. And after each positioning is completed, the video monitoring module drives the abutting part to work, applies a moment to the impact block and drives the impact block to slide close to the carbide tooth. At the same time, the adjusting part makes the two abutting rods slide away from each other, so that the abutting rods do not easily hinder the sliding of the impact block, and the arc side of the impact block abuts tightly against the carbide tooth, thereby simulating the axial static pressure received by the carbide tooth. Then the rotating part drives the roller bit to rotate, so that the rotation speed of the roller bit is in the rotation speed range under the actual working condition, and multiple carbide teeth in a row sequentially impact the arc side of the impact block, so that the impact block is subjected to a reverse impact force and slides in the direction away from the carbide tooth, realizing the simulation of the tangential impact force received by the carbide tooth when breaking the formation, improving the accuracy and reliability of the impact test results. At the same time, by adjusting the magnitude of the moment applied to the impact block by the abutting part, the impact force of different formations on the carbide tooth can be simulated, which is convenient for carrying out impact tests on carbide teeth with different specification parameters.

[0011] At the same time, since the impact forces received by each row of carbide teeth under the actual working condition are not the same, at this time, by analyzing the position information of the lifting height of the roller bit, the inclination angle of the carbide tooth, and the distance between the top end of the carbide tooth and the impact block when positioning multiple rows of carbide teeth, the sequence of contact between each row of carbide teeth and the formation under the actual working condition is obtained, and the magnitude of the moment applied to the carbide tooth by the abutting part is adjusted according to the sequence of contact between each row of carbide teeth and the formation, so as to truly reflect the different stress conditions of the carbide tooth under the actual working condition, and improve the accuracy and reliability of the impact test results.

[0012] After the impact test on a row of alloy teeth is completed, the abutting member separates the impact block from the alloy teeth. Then, the rotating member drives the cone bit to slowly rotate. The surface of the alloy teeth is imaged by the video monitoring module, and it is determined whether there are deformations, cracks or fractures on the surface of the alloy teeth, improving the efficiency of the impact test.

[0013] Optionally, there are multiple groups of the positioning rods. The multiple groups of positioning rods are arranged at equal intervals along the height direction of the positioning block. An amplifying member for amplifying the sliding distance of the positioning rod is arranged on the positioning block.

[0014] By adopting the above technical solution, when positioning the alloy teeth, the lifting member drives the cone bit to descend, the driving member drives the movable block to slide and drives the positioning block to rotate, so that the side wall of the alloy teeth abuts against the hemispherical ends of multiple groups of positioning rods in sequence, and drives two abutting rods arranged oppositely to slide away from each other until the sliding distances of the two abutting rods in each group are the same and the sliding distances of multiple groups of positioning rods no longer change, realizing the positioning of the alloy teeth.

[0015] Then the video monitoring module drives the cone bit to continue to slowly rotate, separating the corresponding alloy teeth from the abutting rods. At this time, under the action of the adjusting member, the abutting rods slide to the initial state. Then, another adjacent alloy tooth rotates to abut against the hemispherical end of the abutting rods, driving the two abutting rods to slide away from each other and gradually slide closer to each other until the abutting rods are separated from the alloy teeth. At this time, the abutting rods slide to the initial state again.

[0016] As the cone bit rotates one circle, at this time, the first alloy tooth rotates to correspond to the abutting rods again. Through the number of times the abutting rods intermittently slide closer to / away from each other, the number of alloy teeth in a row can be determined. The video monitoring module collects the sliding distance data of the abutting rods, realizing the recording of the shape data of the alloy teeth one by one after the impact test, and analyzing and judging whether there are deviations in the inclination angles of multiple alloy teeth inlaid in the same row, realizing the detection of the inlay accuracy of the alloy teeth. At the same time, the arranged amplifying member amplifies the sliding distance of the abutting rods, improving the accuracy of the video monitoring module, reducing the requirement for the accuracy of the video monitoring module, and reducing the equipment cost.

[0017] When there are inclination angle deviations in some alloy teeth, it is easy to cause some alloy teeth to bear excessive stress, resulting in excessive damage or fracture of the alloy teeth and reducing the accuracy of the impact test results. At this time, the technician needs to remove the unqualified cone bit and test the next cone bit.

[0018] When the inclination angles of the alloy teeth are the same, the video monitoring module drives the abutting member and the rotating member to work, and an impact test is carried out on the alloy teeth.

[0019] After the impact test is completed, the pressing member separates the impact block from the alloy tooth. Then, the rotating member drives the cone bit to slowly rotate, and the surface of the alloy tooth is imaged by the video monitoring module to determine whether there are obvious cracks or fractures on the surface of the alloy tooth.

[0020] Meanwhile, the adjusting member drives the abutting rod to slide, so that the abutting rod presses against the alloy tooth, and thus the abutting rod slides in the direction close to / away from the alloy tooth along with the movement of the alloy tooth. At the same time, the video monitoring module collects the sliding distance data of the abutting rod, and realizes the recording of the shape data of the alloy tooth one by one after the impact test. At this time, the video monitoring module analyzes the shape data of the alloy tooth before and after the impact test, and can judge the wear or deformation condition of the alloy tooth.

[0021] Optionally, the amplifying member includes a sliding gear rotatably arranged on the abutting rod. A damping is provided at the rotating shaft of the sliding gear. A sliding rack is slidably arranged on the positioning block. A fixed rack is also provided on the positioning block. The sliding rack and the fixed rack are both engaged with the sliding gear, and the sliding rack and the fixed rack are respectively located on opposite sides of the sliding gear. One end of the sliding rack protrudes from the side wall of the positioning block movably.

[0022] By adopting the above technical solution, when the abutting rod slides, the abutting rod drives the sliding gear to slide synchronously, so that the fixed rack drives the sliding gear to rotate. At this time, the sliding gear slides and drives the sliding rack to slide. At the same time, the sliding gear rotates and drives the sliding rack to slide, thereby increasing the sliding distance of the sliding rack and improving the accuracy of the video monitoring module in monitoring the sliding distance of the sliding rack.

[0023] At the same time, since a damping is provided at the rotating shaft of the sliding gear, the abutting rod is not likely to jump accidentally and is not likely to interfere with the video monitoring module, improving the accuracy of the video monitoring module in monitoring.

[0024] Optionally, the pressing member includes a sliding rod provided on the impact block. The sliding rod is located on the side of the impact block away from its arc end. The sliding rod penetrates through the movable block slidably. The cross section of the sliding rod is polygonal. A first permanent magnet is provided at one end of the sliding rod away from the impact block. A first electromagnet is provided on the movable block. The first electromagnet is located between the movable block and the first permanent magnet. A first elastic member for moving the impact block towards the first electromagnet is provided on the movable block. The first electromagnet is electrically connected to the video monitoring module.

[0025] By adopting the above technical solution, when performing an impact test on the alloy teeth, the video monitoring module emits corresponding electrical signals and energizes the first electromagnet, causing the first electromagnet to attract the first permanent magnet, driving the first permanent magnet to move towards the first electromagnet, making the impact block slide close to and press against the alloy teeth. At this time, there is a gap between the first electromagnet and the first permanent magnet, and this gap is equal to the difference between the initial gap between the first electromagnet and the first permanent magnet and the distance measured between the top of the alloy teeth and the impact block during positioning. The video monitoring module adjusts the magnitude of the power supply to the first electromagnet through the gap between the first electromagnet and the first permanent magnet, reducing the influence of this gap on the magnetic force, thereby realizing the adjustment and correction of the torque applied to the impact block and improving the accuracy of torque control.

[0026] After the impact test is completed, the first electromagnet is powered off. At this time, under the action of the first elastic member, the impact block moves towards the first electromagnet, separating the impact block from the alloy teeth.

[0027] Optionally, the pressing member further includes an ear plate provided on the sliding rod. The ear plate is located between the movable block and the first permanent magnet. The end of the sliding rod away from the impact block is provided with a thread, and a pressing nut is coaxially threaded on the sliding rod. The side walls of the first permanent magnet and the pressing nut close to each other and the side walls of the first permanent magnet and the ear plate close to each other are in movable contact. Buffer pads are provided between the first permanent magnet and the pressing nut and between the first permanent magnet and the ear plate.

[0028] By adopting the above technical solution, during the impact test, through the provided buffer pads, the impact on the first permanent magnet is reduced, the risk of the first permanent magnet being impacted and causing a decrease in magnetic force is reduced, the stability of the magnetic force between the first electromagnet and the first permanent magnet when the first electromagnet is energized is improved, the stability of the torque applied to the impact block is improved, and further the accuracy of the impact test structure is improved.

[0029] After a long-term impact test, the first permanent magnet is prone to a decrease in magnetic force due to surface aging and long-term impact. At this time, the technician can disassemble and detect the first permanent magnet by rotating the pressing nut, which is convenient for the technician to magnetize or replace the first permanent magnet.

[0030] Optionally, the adjusting member includes a second permanent magnet provided on one side of the abutting rod close to the hemispherical end. A second electromagnet is provided on the side wall of the positioning block close to the second permanent magnet. There are multiple second electromagnets, and the multiple second electromagnets correspond to the multiple second permanent magnets one by one. The second electromagnet is magnetically connected to the second permanent magnet. A second elastic member for pressing the hemispherical end of the abutting rod against the side wall of the alloy teeth is provided on the positioning block. The second electromagnet is electrically connected to the video monitoring module.

[0031] By adopting the above technical solution, the video monitoring module emits corresponding electrical signals, and sequentially energizes the second electromagnet and the first electromagnet, so that the second permanent magnet moves closer to the second electromagnet, thereby making the second permanent magnet fit with the second electromagnet, and making the hemispherical end of the abutting rod slide away from the alloy tooth, further making it difficult for the abutting rod to block the sliding of the impact block, and realizing the automatic control of the sliding of the abutting rod to avoid the sliding of the impact block.

[0032] After the impact test is completed, the second electromagnet is powered off, so that the abutting rod slides towards the alloy tooth under the action of the second elastic member, and the hemispherical end of the abutting rod abuts against the side wall of the alloy side, facilitating the positioning of the abutting rod for the next time.

[0033] Optionally, a rotating shaft is rotatably arranged on the mounting block, and the cone bit is coaxially and detachably fixed on the rotating shaft. The rotating member includes a rotating worm wheel coaxially arranged on the rotating shaft. A rotating worm is rotatably arranged on the mounting block. The rotating worm wheel meshes with the rotating worm. A first power member for driving the rotating worm to rotate is further arranged on the mounting block, and the first power member is electrically connected to the video monitoring module.

[0034] By adopting the above technical solution, when it is necessary to drive the cone bit to rotate, the video monitoring module drives the first power member to work, and drives the rotating worm to rotate, thereby driving the rotating worm wheel and the rotating shaft to rotate, realizing the rotation of the cone bit. And when performing an impact test on the alloy tooth, the rotational torque applied to the cone bit is increased through the transmission of the rotating worm and the rotating worm wheel.

[0035] When the alloy tooth rotates to correspond to the abutting rod, the first power member stops working. At this time, due to the self-locking of the worm and worm wheel, the alloy tooth is not easy to rotate, facilitating the subsequent positioning of the alloy tooth; Optionally, the abutting rod includes a hemispherical portion and a connecting rod portion. A threaded hole is formed in the side wall of the connecting rod portion close to the hemispherical portion. A threaded rod is arranged on the hemispherical portion. The threaded rod is threadedly matched with the threaded hole, and the hemispherical portion is made of wear-resistant material.

[0036] By adopting the above technical solution, after a long-term impact test, the hemispherical portion is easily worn, causing an error in the monitoring of the sliding distance of the abutting rod by the video monitoring module and reducing the accuracy of positioning the alloy tooth. At this time, through bolt connection, it is convenient for technicians to regularly disassemble and replace the hemispherical portion, and the hemispherical portion is made of wear-resistant material, improving the service life of the hemispherical portion and reducing the frequency of regular maintenance.

[0037] In summary, the present application includes at least one of the following beneficial technical effects: 1. Before the impact test, the multi-row alloy teeth are positioned by the positioning component so that the positioning blocks correspond to the alloy teeth. At this time, the impact block is located directly below the alloy teeth. Then, the pressing member applies a moment to the impact block and makes the arc side of the impact block abut against the alloy teeth, thereby simulating the axial static pressure received by the alloy teeth. Then, the rotating member drives the cone bit to rotate, so that the rotation speed of the cone bit is within the rotation speed range under the actual working conditions, and the multiple alloy teeth in a row sequentially impact the arc side of the impact block, so that the impact block slides away from the alloy teeth under the reverse impact force, realizing the simulation of the tangential impact force received by the alloy teeth when breaking the formation, improving the accuracy and reliability of the impact test results, and improving the efficiency of the impact test; 2. Through the provided positioning rods, during positioning, the cone bit descends to make the alloy teeth sequentially abut against multiple groups of positioning rods, causing the two abutting rods in each group to slide away from each other. At the same time, the driving member drives the movable block to slide and the positioning block to rotate, so that the sliding distances of the two abutting rods in each group are always the same until multiple groups of positioning rods no longer slide. Then, the rotating member drives the cone bit to rotate, so that the multiple alloy teeth in a row sequentially abut against and drive the positioning rods to slide reciprocally. By analyzing the sliding distances of the positioning rods, the sliding distances of the movable blocks, and the rotation angles of the positioning blocks, the inclination angles of each row of alloy teeth and the distances from the tops of the alloy teeth to the impact block can be obtained, and the sequence of contact between each row of alloy teeth and the formation under the actual working conditions can be obtained. Furthermore, during the impact test, the magnitude of the moment applied by the pressing member to the alloy teeth is adjusted to truly reflect the different force conditions of the alloy teeth under the actual working conditions, improving the accuracy and reliability of the impact test results; 3. When positioning the alloy teeth, the video monitoring module collects the sliding distance data of the abutting rods, realizes the recording of the shape data of the alloy teeth one by one after the impact test, and analyzes and judges whether there are deviations in the inclination angles of the multiple alloy teeth in the same row, realizing the detection of the embedding accuracy of the alloy teeth. And when there are inclination angle deviations in the alloy teeth, the technician needs to remove the unqualified cone bit and test the next cone bit, reducing the risk of some alloy teeth being damaged or fractured due to excessive stress caused by the embedding accuracy, and improving the representativeness of the detection results; 4. After the impact test is completed, the rotating member drives the cone bit to rotate slowly, and the video monitoring module collects images of the surfaces of the alloy teeth one by one to judge whether there are obvious cracks or fractures on the surfaces of the alloy teeth. Since it is not easy to detect the subtle deformation of the alloy teeth through the video detection module, at this time, the video monitoring module collects the sliding distance data of the abutting rods, realizes the recording of the shape data of the alloy teeth one by one after the impact test. At this time, the video monitoring module analyzes the shape data of the alloy teeth before and after the impact test, and can judge the wear or deformation conditions of the alloy teeth, realizing the rapid evaluation of the impact test results and improving the efficiency of the impact test; 5. By setting an enlarging member to enlarge the sliding distance of the abutting rod, the accuracy of the video monitoring module is improved, the requirement for the accuracy of the video monitoring module is reduced, and the equipment cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a schematic diagram of the connection structure of the movable block, the positioning block and the video monitoring module; Figure 3 is Figure 2 a partial enlarged schematic diagram of part A in Figure 4 is a schematic diagram of the connection structure of the sliding gear, the sliding rack and the fixed rack; Figure 5 is a schematic diagram of the connection structure of the impact block, the first electromagnet and the first permanent magnet.

[0039] Reference numerals: 1, frame; 11, lifting member; 2, mounting block; 21, rotating shaft; 3, slewing member; 31, slewing worm gear; 32, slewing worm; 33, first power member; 4, positioning assembly; 41, movable block; 42, positioning block; 43, abutting rod; 431, hemispherical portion; 432, connecting rod portion; 433, threaded rod; 44, video monitoring module; 441, industrial camera; 442, controller; 45, adjusting member; 451, second permanent magnet; 452, second electromagnet; 453, second elastic member; 46, driving member; 461, lead screw nut; 462, driving lead screw; 463, second power member; 464, third power member; 47, enlarging member; 471, sliding gear; 472, sliding rack; 473, fixed rack; 474, identification block; 5, impact assembly; 51, impact block; 52, sliding rod; 53, abutting member; 531, first permanent magnet; 532, first electromagnet; 533, first elastic member; 534, ear plate; 535, abutting nut; 536, buffer pad; 6, cone bit; 7, alloy tooth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The following further describes the present application in detail with reference to the attached Figures 1-5 drawings.

[0041] An embodiment of the present application discloses an impact test device for alloy teeth of a cone bit. Refer to Figure 1 and Figure 2, a rock bit alloy tooth impact test device includes a frame 1 and a mounting block 2 that is vertically connected to the frame 1. A rotating shaft 21 is rotatably connected to the mounting block 2. One end of the rotating shaft 21 extends obliquely downward along the width direction of the frame 1. The rock bit 6 is coaxially and detachably fixed to the rotating shaft 21. A lifting member 11 for driving the mounting block 2 to lift is provided on the frame 1. In this application, the lifting member 11 is a hydraulic push rod. A positioning assembly 4 for positioning the position of the alloy teeth 7 on the rock bit 6 is also provided on the frame 1.

[0042] To drive the rotation of the rotating shaft 21, a slewing member 3 is provided on the frame 1. Refer to Figure 2 , the slewing member 3 includes a slewing worm gear 31 coaxially fixed to one end of the rotating shaft 21. A slewing worm 32 is rotatably connected to the mounting block 2. The slewing worm gear 31 meshes with the slewing worm 32. A first power member 33 for driving the slewing worm 32 to rotate is fixed to the mounting block 2. In this application, the first power member 33 is a slewing motor.

[0043] Refer to Figure 2 and Figure 3 , the positioning assembly 4 includes a movable block 41 slidably connected to the frame 1. The sliding direction of the movable block 41 is parallel to the length direction of the frame 1. The movable block 41 is located below the mounting block 2. A positioning block 42 is rotatably connected to the movable block 41. The rotation axis of the positioning block 42 is consistent with the width direction of the frame 1. A positioning rod is slidably connected to the positioning block 42. The sliding direction of the positioning rod is consistent with the sliding direction of the movable block 41. There are multiple groups of positioning rods, and the multiple groups of positioning rods are evenly spaced along the height direction of the positioning block 42. In this application, the positioning rods are set to five groups. In other embodiments, the positioning rods can also be three groups, four groups, eight groups, etc. As long as the layout method is consistent with this application. Each group of positioning rods includes two abutting rods 43 arranged oppositely. One end of the abutting rod 43 is hemispherical and is movably abutted against the side wall of the alloy tooth 7. And when the abutting rod 43 is separated from the alloy tooth 7, the hemispherical ends of the two abutting rods 43 are movably abutted. A video monitoring module 44 for monitoring the abutting rod 43 and the alloy tooth 7 is fixed to the movable block 41. The video monitoring module 44 includes two industrial cameras and a controller fixed to the movable block 41. The two industrial cameras are arranged oppositely along the width direction of the frame 1, and both industrial cameras are arranged facing the alloy tooth 7. The industrial cameras are electrically connected to the controller. The two industrial cameras are provided to facilitate the all-round monitoring of the surface quality of the alloy tooth 7.

[0044] To drive the sliding of the movable block 41 and the rotation of the positioning block 42, a driving member 46 is provided on the frame 1. Refer to Figure 2, the driving member 46 includes a lead screw nut 461 fixed to the movable block 41 and a driving lead screw 462 rotatably connected to the frame 1. The lead screw nut 461 is threadedly engaged with the driving lead screw 462. A second power member 463 and a third power member 464 are fixed to the frame 1. In this application, both the second power member 463 and the third power member 464 are driving motors. The output end of the second power member 463 is connected to the driving lead screw 462, and the output end of the third power member 464 is connected to the rotating shaft of the positioning block 42. In order to avoid the industrial camera for the third power member 464, a universal joint coupling is connected between the output end of the third power member 464 and the rotating shaft of the positioning block 42. The first power member 33, the second power member 463, the third power member 464, and the lifting member 11 are all electrically connected to the industrial camera.

[0045] In order to drive the abutting rods 43 to slide close to / away from each other, an adjusting member 45 is provided on the frame 1. Refer to Figure 2 and Figure 3 , the adjusting member 45 includes a second permanent magnet 451 fixed to the abutting rod 43. The second permanent magnet 451 is located on the side of the abutting rod 43 close to the hemispherical end. A second electromagnet 452 is fixed to the side wall of the positioning block 42 close to the second permanent magnet 451. There are ten second electromagnets 452, and the ten second electromagnets 452 correspond to the ten second permanent magnets 451 one by one. The second electromagnet 452 is magnetically connected to the second permanent magnet 451. A second elastic member 453 is provided on the positioning block 42 to make the hemispherical end of the abutting rod 43 abut against the side wall of the alloy tooth 7. In this application, the second elastic member 453 is a pressing spring. The second electromagnet 452 is electrically connected to the industrial camera.

[0046] When an impact test needs to be performed on the alloy teeth 7, the technician fixes the cone bit 6 to the rotating shaft 21, and then the technician starts the equipment. At this time, the second power member 463 drives the driving lead screw 462 to rotate, driving the lead screw nut 461 and the movable block 41 to slide along the width direction of the frame 1 until the industrial camera monitors that the positioning block 42 is directly below one row of alloy teeth 7 on the cone bit 6. At this time, the abutting rods 43 slide close to each other in pairs under the action of the second elastic member 453, and the hemispherical ends of each group of two abutting rods 43 are kept in abutment. This is the initial state of the abutting rods 43.

[0047] Meanwhile, the controller controls the second power component 463 to stop working, and controls the first power component 33 to drive the rotary worm 32 to rotate, thereby driving the rotary turbine and the cone bit 6 to rotate slowly until an alloy tooth 7 directly above the abutting rod 43 is monitored by the industrial camera and corresponds to the abutting rod 43. Then, the controller controls the lifting component 11 to drive the mounting block 2 and the cone bit 6 to descend, so that the side wall of the corresponding alloy tooth 7 abuts tightly against the hemispherical ends of the five groups of positioning rods in sequence, and drives the two oppositely arranged abutting rods 43 to slide away from each other. Meanwhile, the controller controls the second power component 463 and the third power component 464 to work, thereby driving the movable block 41 to slide and driving the positioning block 42 to rotate, and keeping the sliding distances of the two oppositely arranged abutting rods 43 consistent until the sliding distances of the two abutting rods 43 in each group are consistent and the sliding distances of the five groups of positioning rods no longer change, realizing the positioning of the alloy tooth 7. At this time, the impact block 51 corresponds to the alloy tooth 7, and the sliding direction of the abutting rod 43 is perpendicular to the inclination angle direction of the corresponding alloy tooth 7.

[0048] Then, the controller controls the first power component 33 to work, thereby driving the cone bit 6 to continue to rotate slowly, separating the corresponding alloy tooth 7 from the abutting rod 43. At this time, under the action of the second elastic component 453, the hemispherical side of the abutting rod 43 always abuts tightly against the alloy tooth 7. Then, another adjacent alloy tooth 7 rotates to abut tightly against the hemispherical end of the abutting rod 43, driving the two abutting rods 43 to slide away from each other and gradually slide closer to each other until the abutting rod 43 is separated from the alloy tooth 7. At this time, the abutting rod 43 slides back to the initial state again.

[0049] As the cone bit 6 rotates one circle, at this time, the first alloy tooth 7 rotates to correspond to the abutting rod 43 again. By the number of times the abutting rod 43 slides close to / away from intermittently, the number of alloy teeth 7 in a row can be determined. The industrial camera collects the sliding distance data of the abutting rod 43, realizes the recording of the shape data of the alloy tooth 7 one by one after the impact test, and analyzes and judges whether there are deviations in the inclination angles of multiple alloy teeth 7 in the same row, realizing the detection of the embedding accuracy of the alloy tooth 7. By repeating the above steps, the positioning of multiple rows of alloy teeth 7 can be realized.

[0050] When there are inclination angle deviations in some alloy teeth 7, it is easy for some alloy teeth 7 to bear excessive stress, causing excessive damage or fracture to the alloy teeth 7 and reducing the accuracy of the impact test results. At this time, the technician needs to remove the unqualified cone bit 6 and test the next cone bit 6.

[0051] When the inclination angles of the alloy teeth 7 are consistent, the controller drives the clamping component 53 and the rotating component 3 to work, and performs an impact test on the alloy teeth 7.

[0052] Furthermore, in order to magnify the sliding distance of the abutting rod 43 and improve the accuracy of industrial camera monitoring, a magnifying member 47 is provided on the positioning block 42. Refer to Figure 4 The magnifying member 47 includes a sliding gear 471 rotatably connected to the abutting rod 43. The rotation axis of the sliding gear 471 is arranged vertically and is perpendicular to the sliding direction of the abutting rod 43. A damping is provided at the rotating shaft of the sliding gear 471. A sliding rack 472 is slidably connected to the positioning block 42. The sliding direction of the sliding rack 472 is consistent with the sliding direction of the abutting rod 43. A fixed rack 473 is also fixed on the positioning block 42. Both the sliding rack 472 and the fixed rack 473 are engaged with the sliding gear 471, and the sliding rack 472 and the fixed rack 473 are respectively located on opposite sides of the sliding gear 471. One end of the sliding rack 472 protrudes from the side wall of the positioning block 42 movably.

[0053] A marking block 474 is fixed to the protruding end of the sliding rack 472. The surface of the marking block 474 is treated by frosting, blackening or sprayed with an anti-reflection coating, as long as it can reduce the reflectivity of the surface of the marking block 474, reducing the reflection of light by the marking block 474 during industrial camera sampling and improving the sampling accuracy of the industrial camera.

[0054] When the abutting rod 43 slides, the abutting rod 43 drives the sliding gear 471 to slide synchronously, causing the fixed rack 473 to drive the sliding gear 471 to rotate. At this time, the sliding gear 471 slides and drives the sliding rack 472 to slide. At the same time, the sliding gear 471 rotates and drives the sliding rack 472 to slide, thereby increasing the sliding distance of the sliding rack 472 and improving the accuracy of the industrial camera in monitoring the sliding distance of the sliding rack 472.

[0055] At the same time, since a damping is provided at the rotating shaft of the sliding gear 471, the abutting rod 43 is not prone to accidental jumping and is not likely to interfere with the industrial camera, improving the accuracy of industrial camera monitoring.

[0056] Furthermore, in order to reduce the detection error caused by the wear of the abutting rod 43, refer to Figure 4 The abutting rod 43 includes a hemispherical portion 431 and a connecting rod portion 432. A threaded hole is formed in the side wall of the connecting rod portion 432 close to the hemispherical portion 431. A threaded rod 433 is fixed on the hemispherical portion 431. The threaded rod 433 is threadedly adapted to the threaded hole, and the hemispherical portion 431 is made of a wear-resistant material. In this application, the material of the hemispherical portion 431 is set as tungsten carbide. In other embodiments, the material of the hemispherical portion 431 can also be set as tungsten steel, ceramic and other materials.

[0057] After a long-term impact test, the hemispherical part 431 is vulnerable to wear, which easily causes errors in the monitoring of the sliding distance of the industrial camera against the abutting rod 43 and reduces the accuracy of positioning the alloy tooth 7. At this time, through bolt connection, it is convenient for technicians to regularly disassemble and replace the hemispherical part 431. Moreover, the hemispherical part 431 is made of wear-resistant material, which improves the service life of the hemispherical part 431 and reduces the frequency of regular maintenance.

[0058] Further, in order to simulate the impact force received by the alloy tooth 7 under actual working conditions and conduct an impact test on the alloy tooth 7, an impact assembly 5 is provided on the frame 1. Refer to Figure 1 , the impact assembly 5 includes an impact block 51 slidably connected to the movable block 41. The sliding direction of the impact block 51 is consistent with the height direction of the frame 1. The side wall of the impact block 51 close to the alloy tooth 7 is arc-shaped, and the arc side of the impact block 51 is movably abutted against the alloy tooth 7. A sliding rod 52 is fixed on the impact block 51. The sliding rod 52 is located on the side of the impact block 51 away from its arc end. The sliding rod 52 is slidably arranged through the movable block 41. The cross section of the sliding rod 52 is polygonal. In this application, the cross section of the sliding rod 52 is set as a regular quadrilateral. In other embodiments, the cross section of the sliding rod 52 can also be set as a triangle, a hexagon or an octagon, as long as the sliding rod 52 is not prone to relative rotation when the sliding rod 52 slides.

[0059] A tightening member 53 for applying an adjustable torque to the impact block 51 is provided on the movable block 41. Refer to Figure 1 and Figure 5 , the tightening member 53 includes a first permanent magnet 531 detachably fixed to one end of the sliding rod 52 away from the impact block 51. A first electromagnet 532 is fixed to the bottom of the movable block 41. The first electromagnet 532 is located between the movable block 41 and the first permanent magnet 531. The sliding rod 52 is arranged through the first electromagnet 532. A first elastic member 533 for moving the impact block 51 in the direction close to the first electromagnet 532 is provided on the movable block 41. In this application, the first elastic member 533 is set as a return spring. The first electromagnet 532 is electrically connected to the industrial camera.

[0060] At the same time, the tightening member 53 further includes an ear plate 534 fixed on the sliding rod 52. The ear plate 534 is located between the movable block 41 and the first permanent magnet 531. A thread is provided at one end of the sliding rod 52 away from the impact block 51. A tightening nut 535 is threadedly connected to the sliding rod 52 coaxially. The side walls of the first permanent magnet 531 and the tightening nut 535 close to each other and the side walls of the first permanent magnet 531 and the ear plate 534 close to each other are movably abutted. Technicians can disassemble and detect the first permanent magnet 531 by rotating the tightening nut 535, which is convenient for technicians to magnetize or replace the first permanent magnet 531.

[0061] A buffer pad 536 is provided between the first permanent magnet 531 and the abutting nut 535, and also between the first permanent magnet 531 and the ear plate 534. In this application, the buffer pad 536 is made of polyurethane. In other embodiments, the buffer pad 536 can also be made of impact-resistant buffer materials such as foamed polypropylene or carbon fiber reinforced materials, reducing the impact on the first permanent magnet 531 during the impact test, reducing the risk of the reduction of the magnetic force caused by the impact on the first permanent magnet 531, improving the stability of the magnetic force between the first electromagnet 532 and the first permanent magnet 531 when the first electromagnet 532 is energized, improving the stability of the torque applied to the impact block 51, and further improving the accuracy of the impact test structure.

[0062] After positioning the multi-row alloy teeth 7, the controller sends an electrical signal and energizes the second electromagnet 452 and the first electromagnet 532 in sequence, causing the second permanent magnet 451 to move closer to the second electromagnet 452, so that the second permanent magnet 451 fits with the second electromagnet 452, and causing the hemispherical end of the abutting rod 43 to slide away from the alloy teeth 7, and further making it difficult for the abutting rod 43 to block the sliding of the impact block 51. Then, the first electromagnet 532 and the first permanent magnet 531 attract each other, driving the first permanent magnet 531 to move closer to the first electromagnet, making the impact block 51 slide closer to and abut against the alloy teeth 7, realizing the automatic control of the sliding of the abutting rod 43 to avoid the sliding of the impact block 51. At this time, there is a gap between the first electromagnet 532 and the first permanent magnet 531, and this gap is equal to the difference between the initial gap between the first electromagnet 532 and the first permanent magnet 531 and the distance measured between the top of the alloy teeth 7 and the impact block 51 during positioning. The controller adjusts the current magnitude passing through the first electromagnet 532 according to the gap between the first electromagnet 532 and the first permanent magnet 531, reducing the influence of this gap on the magnetic force, thereby realizing the adjustment and correction of the torque applied to the impact block 51, improving the accuracy of the torque control, and thus simulating the axial static pressure received by the alloy teeth 7.

[0063] At the same time, the controller analyzes the position information of the lifting height of the cone bit 6, the inclination angle of the alloy teeth 7, and the distance between the top of the alloy teeth 7 and the impact block 51 when positioning the alloy teeth 7, obtains the sequence of contact of each row of alloy teeth 7 with the formation under the actual working conditions, and adjusts the current magnitude passing through the first electromagnet 532 according to the sequence of contact of each row of alloy teeth 7 with the formation, realizing the adjustment of the torque magnitude applied by the alloy teeth 7, so as to truly reflect the different stress conditions of the alloy teeth 7 under the actual working conditions, and improving the accuracy and reliability of the impact test results.

[0064] Then, the first power component 33 drives the roller bit 6 to rotate, so that the rotation speed of the roller bit 6 is within the rotation speed range under the actual working conditions, and a plurality of alloy teeth 7 in a row sequentially impact the arc side of the impact block 51, so that the impact block 51 slides in a direction away from the alloy teeth 7 under the reverse impact force, realizing the tangential impact force received by the alloy teeth 7 when breaking the formation, and improving the accuracy and reliability of the impact test results.

[0065] After the impact test is completed, the controller powers off the first electromagnet 532 and the second electromagnet 452 in sequence. At this time, the impact block 51 slides in a direction away from the alloy teeth 7 under the action of the first elastic member 533 and separates from the alloy teeth 7. Then, the abutting rod 43 slides in a direction close to the alloy teeth 7 under the action of the second elastic member 453, and the abutting rod 43 abuts tightly against the alloy teeth 7. Then, the first power component 33 drives the roller bit 6 to rotate slowly, and an industrial camera is used to collect images of the surface of the alloy teeth 7 to judge whether there are obvious cracks or fractures on the surface of the alloy teeth 7.

[0066] At the same time, the abutting rod 43 slides in a direction close to / away from the alloy teeth 7 along with the movement of the alloy teeth 7. At the same time, the industrial camera collects the sliding distance data of the abutting rod 43, realizing the one-by-one recording of the shape data of the alloy teeth 7 after the impact test. At this time, the controller analyzes the shape data of the alloy teeth 7 before and after the impact test, and can judge the wear or deformation conditions of the alloy teeth 7.

[0067] The implementation principle of the roller bit alloy tooth impact test device according to the embodiment of the present application is as follows: when an impact test needs to be performed on the alloy teeth 7, the technical personnel fix the roller bit 6 on the rotating shaft 21, and then the technical personnel start the device. At this time, the second power component 463 drives the driving lead screw 462 to rotate, driving the lead screw nut 461 and the movable block 41 to slide along the width direction of the frame 1 until the industrial camera monitors that the positioning block 42 is directly below one row of alloy teeth 7 on the roller bit 6.

[0068] Then the controller controls the first power component 33 to drive the rotary worm 32 to rotate, driving the rotary turbine and the rotating shaft 21 to rotate, thereby driving the cone bit 6 to slowly rotate until an alloy tooth 7 directly above the abutting rod 43 is monitored by the industrial camera and corresponds to the abutting rod 43. Then the controller controls the lifting component 11 to drive the mounting block 2 and the cone bit 6 to descend, so that the side wall of the corresponding alloy tooth 7 abuts tightly against the hemispherical ends of the five groups of positioning rods in sequence, and drives the two relatively arranged abutting rods 43 to slide away from each other. At this time, the abutting rods 43 slide close to each other pairwise under the action of the second elastic member 453, and keep the hemispherical ends of two abutting rods 43 in each group abutted tightly. At the same time, the controller controls the second power component 463 and the third power component 464 to work, thereby driving the movable block 41 to slide and driving the positioning block 42 to rotate, and keeping the sliding distances of the two relatively arranged abutting rods 43 consistent until the sliding distances of the two abutting rods 43 in each group are consistent and the sliding distances of the five groups of positioning rods no longer change, realizing the positioning of the alloy tooth 7.

[0069] Then the controller controls the first power component 33 to work, thereby driving the cone bit 6 to continue to rotate slowly, separating the corresponding alloy tooth 7 from the abutting rod 43, and gradually sliding close to each other. As the cone bit 6 rotates one circle, at this time the first alloy tooth 7 rotates to correspond to the abutting rod 43 again. By the number of times the abutting rod 43 slides close to / away from intermittently, the number of alloy teeth 7 in a row can be determined. The industrial camera collects the sliding distance data of the abutting rod 43, realizes the recording of the shape data of the alloy tooth 7 one by one after the impact test, and analyzes and judges whether there is a deviation in the inclination angle of the embedding of multiple alloy teeth 7 in the same row, realizing the detection of the embedding accuracy of the alloy tooth 7. By repeating the above steps, the positioning of multiple rows of alloy teeth 7 can be realized.

[0070] When there is an inclination angle deviation in some alloy teeth 7, the technician removes the unqualified cone bit 6 and tests the next cone bit 6.

[0071] When the inclination angles of the alloy teeth 7 are the same, the controller sends an electric signal, and sequentially energizes the second electromagnet 452 and the first electromagnet 532, so that the second permanent magnet 451 moves closer to the second electromagnet 452, and the abutting rod 43 does not easily block the sliding of the impact block 51. Then the first electromagnet 532 and the first permanent magnet 531 attract each other, driving the first permanent magnet 531 to move in the direction close to the first electromagnet, making the impact block 51 slide close to and abut tightly against the alloy tooth 7. At the same time, according to the data information collected during the industrial camera positioning, the magnitude of the current passing through the first electromagnet 532 is adjusted to realize the adjustment of the torque applied to the alloy tooth 7, so as to truly reflect the different force conditions of the alloy tooth 7 under actual working conditions.

[0072] Then the controller controls the first power component 33 to rotate, realizing the rotation of the roller bit 6, and making the rotation speed of the roller bit 6 within the rotation speed range under the actual working conditions, and making the multiple alloy teeth 7 in a row sequentially impact the arc side of the impact block 51, so that the impact block 51 slides in the direction away from the alloy teeth 7 under the reverse impact force, realizing the impact test on a row of alloy teeth 7.

[0073] After the impact test is completed, the controller cuts off the power supply to the first electromagnet 532 and the second electromagnet 452 in sequence. At this time, the impact block 51 slides in the direction away from the alloy teeth 7 under the action of the first elastic member 533 and separates from the alloy teeth 7. Then the abutting rod 43 slides in the direction close to the alloy teeth 7 under the action of the second elastic member 453, and the abutting rod 43 abuts tightly against the alloy teeth 7. Then the first power component 33 drives the roller bit 6 to rotate slowly, and the surface of the alloy teeth 7 is imaged by an industrial camera to judge whether there are obvious cracks or fractures on the surface of the alloy teeth 7.

[0074] At the same time, the abutting rod 43 slides in the direction close to / away from the alloy teeth 7 along with the movement of the alloy teeth 7. At the same time, the industrial camera collects the sliding distance data of the abutting rod 43, realizing the recording of the shape data of the alloy teeth 7 one by one after the impact test. At this time, the controller analyzes the shape data of the alloy teeth 7 before and after the impact test, and can judge the wear condition or deformation condition of the alloy teeth 7.

[0075] By repeating the above steps, the impact test on multiple rows of alloy teeth 7 can be realized.

[0076] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A percussion test device for a cone bit alloy tooth, characterized in that: It includes a frame and a mounting block that is vertically arranged on the frame. The cone bit is rotatably mounted on the mounting block, and the rotation axis of the cone bit is inclined along the height direction of the frame. The frame is provided with a lifting member for driving the mounting block to lift and a rotary member for driving the cone bit to rotate. The frame is also provided with a positioning assembly for positioning the position of the alloy teeth on the cone bit and an impact assembly for performing an impact test on the alloy teeth; The positioning assembly includes a movable block slidably arranged on the frame. A positioning block is rotatably arranged on the movable block. A positioning rod is slidably arranged on the positioning block. The positioning rod includes two oppositely arranged abutting rods. One end of the abutting rod is hemispherical and is movably abutted against the side wall of the alloy tooth. And when the abutting rod is separated from the alloy tooth, the hemispherical ends of the two abutting rods are movably abutted against each other. The frame is provided with a video monitoring module for monitoring the abutting rod and the alloy tooth and an adjusting member for driving the abutting rod to slide closer to / away from. The frame is also provided with a driving member for driving the movable block to slide and driving the positioning block to rotate; The impact assembly includes an impact block slidably arranged on the movable block. The side wall of the impact block close to the alloy tooth is arc-shaped, and the arc side of the impact block is movably abutted against the alloy tooth. The movable block is provided with a tightening member for applying an adjustable torque to the impact block. The tightening member, the adjusting member, the rotary member, the driving member and the lifting member are all electrically connected to the video monitoring module.

2. The impact test device for the cone bit alloy teeth according to claim 1, wherein: There are multiple groups of the positioning rods, and the multiple groups of the positioning rods are arranged at equal intervals along the height direction of the positioning block. An amplifying member for amplifying the sliding distance of the positioning rod is arranged on the positioning block.

3. The impact test device for cone bit alloy teeth according to claim 2, characterized in that: The amplifying member includes a sliding gear rotatably arranged on the abutting rod. A damping is provided at the rotating shaft of the sliding gear. A sliding rack is slidably arranged on the positioning block. A fixed rack is also arranged on the positioning block. The sliding rack and the fixed rack are both engaged with the sliding gear, and the sliding rack and the fixed rack are respectively located on the opposite sides of the sliding gear. One end of the sliding rack protrudes from the side wall of the positioning block movably.

4. The impact test device for the cone bit alloy teeth according to claim 3, characterized in that: A sliding rod is arranged on the impact block. The sliding rod is located on the side of the impact block away from its arc end. The sliding rod slidably penetrates through the movable block. The cross section of the sliding rod is polygonal. The tightening member includes a first permanent magnet arranged at the end of the sliding rod away from the impact block. A first electromagnet is arranged on the movable block. The first electromagnet is located between the movable block and the first permanent magnet. A first elastic member for making the impact block move towards the direction close to the first electromagnet is arranged on the movable block. The first electromagnet is electrically connected to the video monitoring module.

5. The impact test device for the cone bit alloy teeth according to claim 4, wherein: The tightening member further includes an ear plate arranged on the sliding rod. The ear plate is located between the movable block and the first permanent magnet. A thread is provided at the end of the sliding rod away from the impact block. A tightening nut is coaxially threaded on the sliding rod. The side walls of the first permanent magnet and the tightening nut close to each other and the side walls of the first permanent magnet and the ear plate close to each other are movably abutted against each other. Buffer pads are arranged between the first permanent magnet and the tightening nut and between the first permanent magnet and the ear plate.

6. The impact test device for the cone bit alloy teeth according to claim 5, characterized in that: The adjusting member includes a second permanent magnet disposed on one side of the abutting rod close to the hemispherical end. A second electromagnet is provided on the side wall of the positioning block close to the second permanent magnet. There are multiple second electromagnets, and the multiple second electromagnets correspond to the multiple second permanent magnets one by one. The second electromagnet is magnetically connected to the second permanent magnet. A second elastic member for pressing the hemispherical end of the abutting rod against the side wall of the alloy tooth is provided on the positioning block. The second electromagnet is electrically connected to the video monitoring module.

7. The impact test device for cone bit alloy teeth according to claim 6, characterized in that: A rotating shaft is rotatably provided on the mounting block, and the cone gear is detachably and fixedly mounted on the rotating shaft coaxially. The rotating member includes a rotating worm wheel coaxially provided on the rotating shaft. A rotating worm is rotatably provided on the mounting block. The rotating worm wheel meshes with the rotating worm. A first power member for driving the rotation of the rotating worm is further provided on the mounting block. The first power member is electrically connected to the video monitoring module.

8. The impact test device for the cone bit alloy teeth according to claim 7, characterized in that: The abutting rod includes a hemispherical portion and a connecting rod portion. A threaded hole is formed in the side wall of the connecting rod portion close to the hemispherical portion. A threaded rod is provided on the hemispherical portion. The threaded rod is threadedly connected to the threaded hole, and the hemispherical portion is made of wear-resistant material.

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