A four-way vehicle track impact force testing device

Abstract

The present invention relates to the technical field of impact testing devices, and particularly to a four-way vehicle track impact force testing device. At both ends of the top side of the base, sliding seats are respectively installed. An installation frame is installed on the sliding seat, and a bridge bank plate is installed on the installation frame. A pier installation plate is installed in the middle of the base. The ends of a two-span four-lane bridge model are connected to the bridge bank plate, and the piers at the bottom of the two-span four-lane bridge model are installed on the pier installation plate. The impact mechanism moves on the pier installation plate, facilitating subsequent impact testing on piers at different positions. The lifting frame rises and falls to adjust the height of the slideway rod, which is used for impact testing on points at different heights of the pier. The turntable rotates, facilitating adjustment of the angle of the slideway rod, and facilitating simulation of impact testing on the pier at different angles. After the adjustment is completed, the guide rod extends and retracts in the slideway rod to realize the guidance of the moving path of the impact ball, ensuring that the impact ball smoothly impacts the pier, and thus realizing the impact force testing at any point.

Description

Technical Field

[0001] The present invention relates to the technical field of impact testing devices, and particularly to a four-way vehicle track impact force testing device. Background Art

[0002] When conducting impact force tests on a two-span four-lane bridge model, at different water levels, the impact points between the ship and the bridge pier are different, and the impact angles are different. At the same time, the tonnage and traveling speed of the ship are also different. The existing impact force testing devices have single testing conditions, which leads to limitations in the test results. Summary of the Invention

[0003] The problem solved by the present invention is to provide a four-way vehicle track impact force testing device, which solves the technical problem that when conducting impact force tests on a two-span four-lane bridge model, at different water levels, the impact points between the ship and the bridge pier are different, and the impact angles are different. At the same time, the tonnage and traveling speed of the ship are also different. The existing impact force testing devices have single testing conditions, which leads to limitations in the test results.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A four-way vehicle track impact force testing device includes a base. At both ends of the top side of the base, sliding seats are respectively installed. An installation frame is installed on the sliding seat, and a bridge bank plate is installed on the installation frame. A bridge pier installation plate is installed in the middle of the base. The ends of the two-span four-lane bridge model are connected to the bridge bank plate, and the bridge piers at the bottom of the two-span four-lane bridge model are installed on the bridge pier installation plate. An impact mechanism is slidably installed on the side wall of the bridge pier installation plate, and a testing mechanism is installed on the side wall of the base;

[0006] The impact mechanism includes a slider. A lifting frame is installed on the slider, and a turntable is rotatably installed on the lifting frame. A fixing plate is fixedly installed on the turntable, and a sliding plate is slidably installed on the turntable. Slideway rods are installed on both the fixing plate and the sliding plate, and a guiding rod is telescopically installed at the end of the slideway rod. An installation inclined arm parallel to the slideway rod is installed on the turntable. A translation seat is slidably installed on the installation inclined arm. The translation seat is connected to an impact ball on the slideway rod through a connecting wire;

[0007] The testing mechanism includes an ultrasonic detection probe for internal flaw detection of the two-span four-lane bridge model.

[0008] Preferably, a slide rail is provided on the top side of the base, and the sliding seat moves along the slide rail. A bolt is threadedly installed on the sliding seat, and the bottom end of the bolt contacts the slide rail;

[0009] A first pneumatic cylinder is installed at the center of the top side of the base, and the telescopic end of the first pneumatic cylinder is connected to the pier mounting plate. Guide rods are installed around the bottom side of the pier mounting plate, and guide sleeves slidably sleeved with the guide rods are installed around the top side of the base.

[0010] Preferably, a first motor is installed at the end of the pier mounting plate, and a first threaded rod threadedly connected to the slider is installed at the output end of the first motor.

[0011] Preferably, a second pneumatic cylinder is installed at the bottom side of the slider, and the telescopic end of the second pneumatic cylinder is connected to the lifting frame;

[0012] A second motor is installed inside the lifting frame, and the output end of the second motor is connected to the turntable.

[0013] Preferably, first shaft seats are symmetrically installed on the turntable, and a bidirectional threaded rod and a slide rod passing through the fixed plate and the slide plate are installed between the two first shaft seats. The bidirectional threaded rod is threadedly connected to the slide plate. A third motor is installed on one of the first shaft seats and is connected to the bidirectional threaded rod.

[0014] Preferably, a rod groove is provided inside the slideway rod. A second threaded rod and a support rod are installed inside the rod groove. The guide rod is threadedly connected to the second threaded rod and is slidably connected to the support rod. A motor is installed on the slideway rod, and the output end of the motor is connected to the second threaded rod.

[0015] Preferably, a fourth motor is installed at the top end of the installation inclined arm, and a third threaded rod threadedly connected to the translation seat is installed at the output end of the fourth motor.

[0016] Preferably, a storage groove is provided on the translation seat. A fifth motor is installed at the end of the translation seat, and a wire roller is installed inside the storage groove at the output end of the fifth motor. A connecting wire is wound around the wire roller. Second shaft seats are symmetrically installed on the translation seat. A sixth motor is installed on one of the second shaft seats, and the output end of the sixth motor is connected to the T-shaped stop arm.

[0017] Preferably, the testing mechanism further includes an electric slide rail. An electric slider is slidably installed on the electric slide rail. A vertical frame is vertically installed on the electric slider. A seventh motor is installed at the top end of the vertical frame, and a fourth threaded rod is installed at the output end of the seventh motor. The fourth threaded rod is threadedly connected to a horizontally arranged lifting frame. An eighth motor is installed at the end of the lifting frame, and the output end of the eighth motor is connected to a fifth threaded rod. The fifth threaded rod is threadedly connected to a translation frame. A ninth motor is installed at the end of the translation frame, and a sixth threaded rod is installed at the output end of the ninth motor. The sixth threaded rod is threadedly connected to the detection movable seat.

[0018] Preferably, a bottom groove is formed at the bottom end of the detection movable seat, a tenth motor is installed on the side wall of the detection movable seat, a rotating shaft is installed at the output end of the tenth motor, and an ultrasonic detection probe is installed on the rotating shaft.

[0019] The beneficial effects of the present invention are as follows: The impact mechanism moves on the pier mounting plate, facilitating subsequent impact tests on piers at different positions. The lifting frame rises and falls to adjust the height of the slide bar, which is used for impact tests on points at different heights of the pier. The turntable rotates, facilitating the adjustment of the angle of the slide bar, and facilitating the simulation of impact tests on the pier at different angles. After the adjustment is completed, the guide rod extends and retracts in the slide bar to realize the guidance of the moving path of the impact ball, ensuring that the impact ball smoothly impacts the pier, and thus realizing the impact force test at any point;

[0020] The translation seat moves along the installation inclined arm to adjust the height of the translation seat and the impact ball. At the same time, the impact ball connected by the connecting wire is convenient to replace, and according to the size of the replaced impact ball, the distance between the two slide bars is adjusted. When performing the impact force test, the impact force and impact speed are adjusted;

[0021] Before the impact, the wire roller rotates to wind and pull the connecting wire to recover the impact ball. At the same time, the T-shaped retaining arm rotates to block the impact ball. During the impact, the wire roller rotates to release the connecting wire, and then the T-shaped retaining arm rotates upward to separate from the impact ball, realizing the automatic retraction and release of the impact ball, which is convenient for performing multiple impact force tests when unattended;

[0022] The multi-directional adjustment of the ultrasonic detection probe is realized through the test mechanism. During the flaw detection, it is ensured that the ultrasonic detection probe translates along the top side of the bridge and rises and falls along the pier. The detection angle is adjusted by rotating the ultrasonic detection probe, and thus the comprehensive flaw detection of the bridge and the pier is realized. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a side view of the overall structure of the present invention;

[0025] Figure 3 It is a first schematic diagram of the impact mechanism of the present invention;

[0026] Figure 4 It is a second schematic diagram of the impact mechanism of the present invention;

[0027] Figure 5 It is a partial cross-sectional view of the slide bar of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the test mechanism of the present invention;

[0029] Figure 7 This is the side view of the test mechanism of the present invention.

[0030] Reference numerals:

[0031] 1. Base; 2. Slide rail; 3. Slide seat; 4. Mounting bracket; 5. Bridge bank plate; 6. First pneumatic cylinder; 7. Pier mounting plate; 8. Guide rod; 9. Guide sleeve; 10. Impact mechanism; 11. Test mechanism; 12. First motor; 13. First threaded rod; 14. Slide block; 15. Second pneumatic cylinder; 16. Lifting frame; 17. Second motor; 18. Turntable; 19. First shaft seat; 20. Third motor; 21. Bi-directional threaded rod; 22. Slide rod; 23. Fixed plate; 24. Slide plate; 25. Slideway rod; 26. Guide rod; 27. Rod groove; 28. Motor; 29. Second threaded rod; 30. Support rod; 31. Mounting inclined arm; 32. Third threaded rod; 33. Fourth motor; 34. Translation seat; 35. Storage groove; 36. Wire roller; 37. Connecting wire; 38. Impact ball; 39. Fifth motor; 40. Second shaft seat; 41. Sixth motor; 42. T-shaped stop arm; 43. Electric slide rail; 44. Electric slide block; 45. Vertical frame; 46. Fourth threaded rod; 47. Seventh motor; 48. Lifting frame; 49. Eighth motor; 50. Fifth threaded rod; 51. Translation frame; 52. Ninth motor; 53. Sixth threaded rod; 54. Detection movable seat; 55. Bottom groove; 56. Tenth motor; 57. Rotating shaft; 58. Ultrasonic detection probe. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] The following gives specific embodiments.

[0034] See Figures 1 to 7, A four-way vehicle track impact force testing device, including a base 1. At both ends of the top side of the base 1, sliding seats 3 are respectively installed. An installation frame 4 is installed on the sliding seat 3, and a bridge bank plate 5 is installed on the installation frame 4. A pier installation plate 7 is installed in the middle of the base 1. The ends of the two-span four-lane bridge model are connected to the bridge bank plate 5, and the piers at the bottom of the two-span four-lane bridge model are installed on the pier installation plate 7. An impact mechanism 10 is slidably installed on the side wall of the pier installation plate 7. A testing mechanism 11 is installed on the side wall of the base 1. A slide rail 2 is arranged on the top side of the base 1, and the sliding seat 3 moves along the slide rail 2. A bolt is threadedly installed on the sliding seat 3, and the bottom end of the bolt contacts the slide rail 2. A first air cylinder 6 is installed at the center of the top side of the base 1, and the telescopic end of the first air cylinder 6 is connected to the pier installation plate 7. Guide rods 8 are installed around the bottom side of the pier installation plate 7, and guide sleeves 9 slidably sleeved with the guide rods 8 are installed around the top side of the base 1. The two-span four-lane bridge is scaled down proportionally to make a model. Loosen the bolt, slide the sliding seat 3 on the slide rail 2 to ensure that the distance between the two bridge bank plates 5 is adapted to the length of the two-span four-lane bridge model. Drive the pier installation plate 7 to rise and fall through the first air cylinder 6 to accommodate the piers of the two-span four-lane bridge model, and then install the two-span four-lane bridge model on the device. According to the test requirements, connect impact balls 38 of different masses with connecting wires 37;

[0035] The impact mechanism 10 includes a slider 14, on which a lifting frame 16 is installed. A turntable 18 is rotatably installed on the lifting frame 16. A fixed plate 23 is fixedly installed on the turntable 18, and a sliding plate 24 is slidably installed on the turntable 18. Slideway rods 25 are installed on both the fixed plate 23 and the sliding plate 24, and a guide rod 26 is telescopically installed at the end of the slideway rod 25. An installation inclined arm 31 parallel to the slideway rod 25 is installed on the turntable 18. A translation seat 34 is slidably installed on the installation inclined arm 31. The translation seat 34 is connected to an impact ball 38 on the slideway rod 25 through a connecting wire 37. At the end of the pier installation plate 7, a first motor 12 is installed. The output end of the first motor 12 is installed with a first threaded rod 13 threadedly connected to the slider 14. A second air cylinder 15 is installed on the bottom side of the slider 14, and the telescopic end of the second air cylinder 15 is connected to the lifting frame 16. A second motor 17 is installed inside the lifting frame 16, and the output end of the second motor 17 is connected to the turntable 18. First shaft seats 19 are symmetrically installed on the turntable 18, and a bidirectional threaded rod 21 and a slide rod 22 passing through the fixed plate 23 and the sliding plate 24 are installed between the two first shaft seats 19. The bidirectional threaded rod 21 is threadedly connected to the sliding plate 24. A third motor 20 is installed on one of the first shaft seats 19, and the third motor 20 is connected to the bidirectional threaded rod 21. A rod groove 27 is formed inside the slideway rod 25. A second threaded rod 29 and a support rod 30 are installed inside the rod groove 27. The guide rod 26 is threadedly connected to the second threaded rod 29 and is slidably connected to the support rod 30. A motor 28 is installed on the slideway rod 25, and the output end of the motor 28 is connected to the second threaded rod 29. At the top end of the installation inclined arm 31, a fourth motor 33 is installed, and the output end of the fourth motor 33 is installed with a third threaded rod 32 threadedly connected to the translation seat 34. A storage groove 35 is formed on the translation seat 34. A fifth motor 39 is installed at the end of the translation seat 34, and the output end of the fifth motor 39 is located inside the storage groove 35 and is installed with a wire reel 36. The connecting wire 37 is wound around the wire reel 36. Second shaft seats 40 are symmetrically installed on the translation seat 34. A sixth motor 41 is installed on one of the second shaft seats 40, and the output end of the sixth motor 41 is connected to a T-shaped stop arm 42. The translation seat 34 moves along the installation inclined arm 31 to adjust the height of the translation seat 34 and the impact ball 38. At the same time, the impact ball 38 connected by the connecting wire 37 is convenient to replace, and the distance between the two slideway rods 25 is adjusted according to the size of the replaced impact ball 38. When performing the impact force test, the impact force and the impact speed are adjusted. By the operation of the first motor 12, the first threaded rod 13 is driven to rotate, and then the slider 14 connected by the thread is driven to move to adjust the position of the impact mechanism 10. The lifting frame 16 is driven to lift by the second air cylinder 15 to adjust the height of the slideway rod 25. The turntable 18 is driven to rotate by the second motor 17, and then the angle of the slideway rod 25 is adjusted. The second threaded rod 29 is driven to rotate by the motor 28, and then the guide rod 26 connected by the thread moves along the support rod 30 in the rod groove 27 until the end of the guide rod 26 approaches the pier impact point.The fourth motor 33 operates to drive the third threaded rod 32 to rotate, thereby driving the translation seat 34 connected by threads to move along the mounting inclined arm 31 to adjust the height of the translation seat 34. Then, the fifth motor 39 drives the wire roller 36 to rotate to wind and pull the connecting wire 37, causing the impact ball 38 to move upward on the slideway rod 25. The sixth motor 41 operates to drive the T-shaped blocking arm 42 to rotate to block the impact ball 38. The impact mechanism 10 moves on the pier mounting plate 7, facilitating subsequent impact tests on piers at different positions. The lifting frame 16 lifts to adjust the height of the slideway rod 25 for impact tests on points at different heights of the pier. The turntable 18 rotates to facilitate adjusting the angle of the slideway rod 25 for simulating impact tests on the pier at different angles. After the adjustment is completed, the guide rod 26 extends and retracts within the slideway rod 25 to guide the movement path of the impact ball 38, ensuring that the impact ball 38 smoothly impacts the pier, thereby realizing the impact force test at any point. During the impact, at this time, the wire roller 36 rotates to release the connecting wire 37, and then the T-shaped blocking arm 42 rotates upward to separate from the impact ball 38. At this time, the impact ball 38 moves along the slideway rod 25 and the guide rod 26 to impact the pier. After the impact is completed, the wire roller 36 rotates to wind and pull the connecting wire 37 to pull the impact ball 38 for recovery, realizing the automatic retraction and extension of the impact ball 38, facilitating multiple impact force tests when unattended.

[0036] The testing mechanism 11 includes an ultrasonic testing probe 58 for internal flaw detection of a two-span four-lane bridge model. The testing mechanism 11 further includes an electric slide rail 43. An electric slider 44 is slidably mounted on the electric slide rail 43. A vertical frame 45 is vertically mounted on the electric slider 44. A seventh motor 47 is mounted at the top of the vertical frame 45. The output end of the seventh motor 47 is provided with a fourth threaded rod 46. The fourth threaded rod 46 is threadedly connected to a horizontally arranged lifting frame 48. An eighth motor 49 is mounted at the end of the lifting frame 48. The output end of the eighth motor 49 is connected to a fifth threaded rod 50. The fifth threaded rod 50 is threadedly connected to a translation frame 51. A ninth motor 52 is mounted at the end of the translation frame 51. The output end of the ninth motor 52 is provided with a sixth threaded rod 53. The sixth threaded rod 53 is threadedly connected to a detection movable seat 54. A bottom groove 55 is formed at the bottom end of the detection movable seat 54. A tenth motor 56 is mounted on the side wall of the detection movable seat 54. The output end of the tenth motor 56 is provided with a rotating shaft 57. The ultrasonic testing probe 58 is mounted on the rotating shaft 57. By driving the fifth threaded rod 50 to rotate through the eighth motor 49, the translation frame 51 connected by threads is driven to move, so that before flaw detection, the translation frame 51 can be moved to the top side and the bottom side of the bridge of the two-span four-lane bridge model. And after flaw detection, the translation frame 51 is moved to overlap with the lifting frame 48. By operating the seventh motor 47 to drive the fourth threaded rod 46 to rotate, the lifting frame 48 connected by threads is driven to lift, and the height of the lifting frame 48 is adjusted. By moving the electric slider 44 along the electric slide rail 43, it is convenient to move the ultrasonic testing probe 58 in the X-axis direction of the two-span four-lane bridge model. By driving the sixth threaded rod 53 to rotate through the ninth motor 52, the detection movable seat 54 connected by threads is driven to move, so that it is convenient to move the ultrasonic testing probe 58 in the Y-axis direction of the two-span four-lane bridge model. By driving the rotating shaft 57 to rotate through the tenth motor 56, the detection angle of the ultrasonic testing probe 58 is adjusted. When the ultrasonic testing probe 58 faces downward, flaw detection of the bridge part of the two-span four-lane bridge model is realized. When the ultrasonic testing probe 58 faces horizontally, flaw detection of the pier part of the two-span four-lane bridge model is realized. Through the testing mechanism 11, multi-directional adjustment of the ultrasonic testing probe 58 is realized. During flaw detection, it is ensured that the ultrasonic testing probe 58 translates along the top side of the bridge and lifts along the pier. By rotating the ultrasonic testing probe 58 to adjust the detection angle, comprehensive flaw detection of the bridge and the pier is realized.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A four-way vehicle track impact force testing device, characterized in that: The invention comprises a base (1), wherein two ends of the top side of the base (1) are respectively installed with slides (3), a slide rail (2) is arranged on the top side of the base (1), and the slide (3) moves along the slide rail (2), a mounting frame (4) is installed on the slide (3), and a bridge bank (5) is installed on the mounting frame (4), a pier mounting plate (7) is installed in the middle of the base (1), wherein the end of a two-span four-lane bridge model is connected to the bridge bank (5), and the piers at the bottom of the two-span four-lane bridge model are installed on the pier mounting plate (7), an impact mechanism (10) is slidably installed on the side wall of the pier mounting plate (7), and a testing mechanism (11) is installed on the side wall of the base (1); The impact mechanism (10) comprises a slider (14), a lifting frame (16) is installed on the slider (14), and a turntable (18) is rotatably installed on the lifting frame (16), a first motor (12) is installed at the end of the pier mounting plate (7), a first threaded rod (13) threadedly connected to the slider (14) is installed at the output end of the first motor (12), a second pneumatic cylinder (15) is installed on the bottom side of the slider (14), the telescopic end of the second pneumatic cylinder (15) is connected to the lifting frame (16), a second motor (17) is installed in the lifting frame (16), and the output of the second motor (17) is connected to the lifting frame (16). The output end is connected to a turntable (18), a fixed plate (23) is fixedly mounted on the turntable (18), and a slide plate (24) is slidably mounted on the turntable (18), a slide rod (25) is mounted on both the fixed plate (23) and the slide plate (24), and a guide rod (26) is telescopically mounted on the end of the slide rod (25), a mounting oblique arm (31) parallel to the slide rod (25) is mounted on the turntable (18), a translation seat (34) is slidably mounted on the mounting oblique arm (31), and the translation seat (34) is connected to an impact ball (38) on the slide rod (25) via a connecting wire (37); The testing mechanism (11) comprises an ultrasonic detection probe (58) for internal flaw detection of a two-span four-lane bridge model. The testing mechanism (11) also comprises an electric slide rail (43), an electric slider (44) is slidably mounted on the electric slide rail (43), a vertical frame (45) is vertically mounted on the electric slider (44), a seventh motor (47) is mounted on the top of the vertical frame (45), and a fourth threaded rod (46) is mounted on the output end of the seventh motor (47), and the fourth threaded rod ( 46) is threadedly connected to a horizontally arranged lifting frame (48), an eighth motor (49) is installed at the end of the lifting frame (48), the output end of the eighth motor (49) is connected to a fifth threaded rod (50), the fifth threaded rod (50) is threadedly connected to a translation frame (51), a ninth motor (52) is installed at the end of the translation frame (51), a sixth threaded rod (53) is installed at the output end of the ninth motor (52), and the sixth threaded rod (53) is threadedly connected to a detection movable seat (54).

2. A four-way vehicle track impact force testing device according to claim 1, characterized in that: A bolt is threadedly mounted on the slide seat (3), and the bottom end of the bolt is in contact with the slide rail (2); A first pneumatic cylinder (6) is installed at the center of the top side of the base (1), and the telescopic end of the first pneumatic cylinder (6) is connected to the pier mounting plate (7), guide rods (8) are installed around the bottom side of the pier mounting plate (7), and guide sleeves (9) that are slidably mounted on the guide rods (8) are installed around the top side of the base (1).

3. A four-way vehicle track impact force testing device according to claim 2, characterized in that: The turntable (18) is symmetrically mounted with first shaft seats (19), and a bidirectional threaded rod (21) and a slide rod (22) penetrating a fixed plate (23) and a slide plate (24) are mounted between the two first shaft seats (19), and the bidirectional threaded rod (21) and the slide plate (24) are threadedly connected, and a third motor (20) is mounted on one of the first shaft seats (19), and the third motor (20) is connected to the bidirectional threaded rod (21).

4. A four-way vehicle track impact force testing device according to claim 3, characterized in that: The slide rod (25) is provided with a rod groove (27), a second threaded rod (29) and a support rod (30) are installed in the rod groove (27), the guide rod (26) is threadedly connected to the second threaded rod (29), and the guide rod (26) is slidably connected to the support rod (30), a motor (28) is installed on the slide rod (25), and an output end of the motor (28) is connected to the second threaded rod (29).

5. A four-way vehicle track impact force testing device according to claim 4, characterized in that: A fourth motor (33) is installed at the top end of the installation oblique arm (31), and a third threaded rod (32) threadedly connected to the translation seat (34) is installed at the output end of the fourth motor (33).

6. A four-way vehicle track impact force testing device according to claim 5, characterized in that: The translation seat (34) is provided with a receiving groove (35), a fifth motor (39) is installed at the end of the translation seat (34), and a wire roller (36) is installed in the receiving groove (35) at the output end of the fifth motor (39), a connecting wire (37) is wound on the wire roller (36), and second shaft seats (40) are symmetrically installed on the translation seat (34), a sixth motor (41) is installed on one of the second shaft seats (40), and the output end of the sixth motor (41) is connected to the T-shaped barrier arm (42).

7. A four-way vehicle track impact force testing device according to claim 6, characterized in that: A bottom groove (55) is provided at the bottom end of the detection movable seat (54), a tenth motor (56) is installed on the side wall of the detection movable seat (54), a rotating shaft (57) is installed at the output end of the tenth motor (56), and an ultrasonic detection probe (58) is installed on the rotating shaft (57).

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