Intelligent bridge load detection device and method

Abstract

The invention discloses an intelligent bridge load detection device and method.The intelligent bridge load detection device comprises a base, a sliding groove frame and a toothed frame box, the sliding groove frame is arranged at the top of the base, and the toothed frame box is transversely arranged at the top of the sliding groove frame in a sliding mode. According to the intelligent bridge load detection device and method, the pre-centering debugging mechanism, the centering prompting mechanism and the fitting detection mechanism are arranged among the base, the sliding groove frame and the toothed frame box, so that when the device carries out fitting detection on a bridge girder, the fitting detection can be carried out through cooperation of the pre-centering debugging mechanism, the centering prompting mechanism and the fitting detection mechanism; and when the two strain sensors are synchronously attached to the two sides of the main beam for detection, the vibration pickups are synchronously driven to be attached to the bottom of the main beam for detection, so that the use convenience of the device is improved, the centering debugging time is shortened, and the overall detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge detection, and in particular to an intelligent bridge load detection device and method. Background Art

[0002] A bridge is generally composed of an upper structure, a lower structure, supports and ancillary structures. Bridges play a vital role in transportation. Bridges are generally built on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. Bridges need to be load tested during their construction and use to ensure their safe use.

[0003] At present, bridges are usually inspected using bridge inspection devices. Since the currently used bridge inspection devices are cumbersome to operate and cannot quickly adjust the position of the strain sensor, the strain sensor cannot quickly fit with the outer wall of the bridge. In order to avoid the above problems, an intelligent bridge load detection device and method are proposed to solve the existing problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an intelligent bridge load detection device and method, which solves the problem that the bridge detection device is inconvenient to quickly adjust the position of the strain sensor, resulting in cumbersome operation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent bridge load detection device, comprising a base, a slide slot frame and a toothed frame box, the slide slot frame is arranged at the top of the base, the toothed frame box is laterally slidably arranged at the top of the slide slot frame, both sides of the top of the base are fixedly connected with a first electric telescopic rod, the top of the extended end of the first electric telescopic rod is fixedly connected to the side of the slide slot frame through a bracket, the front and rear sides of the top of the toothed frame box are rotatably provided with guide rollers, and a number of guide rollers are equidistantly arranged, a fitting detection mechanism is arranged on the toothed frame box, a pre-centering debugging mechanism is arranged between the fitting detection mechanism and the toothed frame box, and a centering prompt mechanism is jointly arranged on the pre-centering debugging mechanism and the toothed frame box.

[0006] Preferably, the fitting detection mechanism includes a servo motor, which is fixedly arranged on one side of the toothed frame box through a bracket, and the output shaft of the servo motor is fixedly connected to a bidirectional threaded rod through a coupling, and one end of the bidirectional threaded rod passes through the toothed frame box and extends to the outside of the toothed frame box, and both sides of the surface of the bidirectional threaded rod and located inside the toothed frame box are threadedly connected with internal thread groove inclined plates, one side of the internal thread groove inclined plate is provided with a strain sensor through a slot, a T-shaped column is vertically slidably arranged inside the toothed frame box, a vibration pickup is installed on the top of the T-shaped column through a slot, an extrusion groove matched with the T-shaped column is provided on one side of the internal thread groove inclined plate, a PLC controller is installed on the top of the base, and a roller matched with the T-shaped column is rotatably arranged between the front and rear sides of the inner cavity of the extrusion groove.

[0007] Preferably, the pre-centering and debugging mechanism includes a threaded centering rod, two of which are provided, and the two threaded centering rods are rotatably arranged on both sides of the toothed frame box through brackets, and the threads of the two threaded centering rods are arranged in opposite directions, the surface of the threaded centering rod is threadedly connected with a threaded sleeve, the top of the threaded sleeve is fixedly connected with a centering long rod, the surface of the threaded centering rod and both sides of the surface of the bidirectional threaded rod are fixedly connected with pulleys, and a belt is connected for transmission between the two pulleys on the same side.

[0008] Preferably, the centering reminder mechanism includes an installation groove, two of which are provided, and the two installation grooves are respectively opened on the opposite sides of the two centering long rods, and a control button is fixedly connected to the inside of the installation groove, and centering reminders used in conjunction with the control button are installed on both sides of the front side of the toothed frame box.

[0009] Preferably, the bottom of the slide frame is fixedly connected to the second electric telescopic rod through a bracket, the top of the extended end of the second electric telescopic rod is fixedly connected to a U-shaped frame, one side of the inner cavity of the U-shaped frame is rotatably connected to a threaded rod through a bearing, and one end of the threaded rod extends to the outside of the U-shaped frame, and the surface of the threaded rod is threadedly connected to a toothed plate with a handle used in conjunction with a toothed frame box.

[0010] Preferably, a limiting sliding rod is fixedly connected between the two sides of the inner cavity of the U-shaped frame, and a sliding hole slidably matched with the limiting sliding rod is opened on one side of the shank tooth plate.

[0011] Preferably, both sides of the rear side of the toothed frame box are fixedly connected to a limiting long rod, the surface of the limiting long rod is slidably connected to a limiting slip ring with a handle, and the front side of the limiting slip ring with a handle on the same side is fixedly connected to the rear side of the threaded sleeve.

[0012] Preferably, both sides of the top of the base are threadedly connected with threaded fastening pins through threaded grooves, and one end of the threaded fastening pin extends to the bottom of the base, and the end of the threaded fastening pin extending to the bottom of the base is rotatably connected to a pad through a bearing.

[0013] The present invention also discloses an intelligent bridge load detection method, which specifically comprises the following steps:

[0014] S1. Roughly align and select the detection position: Use the moving device to make the internal thread groove inclined plates on both sides of the top of the device relatively evenly distributed on the inclined surfaces on both sides of the main beam, then start the first electric telescopic rod to make the slide frame and the toothed frame box rise, and the toothed frame box rises synchronously to drive the guide roller to rise until the top of the guide roller fits the bottom surface of the main beam;

[0015] S2. Automatic centering pre-control: The servo motor is started in forward rotation, and the servo motor starts to drive the bidirectional threaded rod to rotate. The two internal thread groove inclined plates on the surface of the bidirectional threaded rod respectively carry the strain sensors and move synchronously to both sides. The rotation of the bidirectional threaded rod is synchronously driven by the transmission of the pulley and the belt to drive the threaded centering rod to rotate. When the two threaded centering rods rotate, the two threaded sleeves on the surfaces of the two threaded centering rods respectively carry the centering long rods to fit the inclined surfaces on both sides of the main beam synchronously. When one side of the centering long rod is in contact with the inclined surface of the main beam in advance, the centering long rod is pushed by the stress at the extension end, causing the toothed frame box to move horizontally as a whole, and the centering position is continuously and automatically corrected until the two centering long rods are synchronously fitted to the inclined surface of the main beam;

[0016] S3. Alignment completion prompt: When the alignment long rod fits with the side wall of the main beam, the alignment long rod will also synchronously drive the control button to be pressed and fitted with the side wall of the main beam, causing the control button to be stressed. When the control button is stressed, the corresponding alignment indicator emits sound and light prompts. When both alignment indicators emit sound and light prompts, alignment is completed.

[0017] S4. Centering and fitting detection: After the debugging of the above-mentioned two centering long rods for the centering detection position is completed, the operator then starts the second electric telescopic rod, and lifts the shank tooth plate through the extended end of the second electric telescopic rod, so that the shank tooth plate and the tooth block at the bottom of the toothed frame box are fitted and limited, and then the servo motor is reversed and started. When the servo motor reverses and drives the two-way threaded rod to rotate, the corresponding two internal thread groove inclined plates will synchronously fit to the inclined surfaces on both sides of the main beam, and the two centering long rods will synchronously move to both sides and gradually separate from the fitting relationship with the main beam. When the internal thread groove inclined plates move, they will simultaneously drive the rollers to move. The movement of the rollers will squeeze and lift the T-columns in the toothed frame box, so that the internal thread groove inclined plates carrying the strain sensor can fit the side walls of the main beam, and can also synchronously drive the T-columns to fit the vibration pickup with the bottom of the main beam. The strain sensor and the vibration pickup are electrically connected to the PLC controller through the data line, and the values ​​detected by the strain sensor and the vibration pickup are displayed by the PLC controller.

[0018] Preferably, a rectangular groove slidably matched with the T-shaped column is opened at the center of the top of the toothed frame box in S4, and rectangular long grooves slidably matched with the internal thread groove inclined plate are respectively opened on both sides of the top of the toothed frame box.

[0019] Beneficial Effects

[0020] The present invention provides an intelligent bridge load detection device and method. Compared with the existing technology, it has the following beneficial effects:

[0021] (1) The intelligent bridge load detection device and method, by setting a pre-centering debugging mechanism, a centering prompting mechanism and a fitting detection mechanism between the base, the slide frame and the toothed frame box, can make the device easy to pre-center and prompt the centering completion of the two strain sensors with both sides of the main beam through the coordinated cooperation of the pre-centering debugging mechanism, the centering prompting mechanism and the fitting detection mechanism when performing the fitting detection on the bridge main beam, and when the two strain sensors are synchronously fitted with both sides of the main beam, the vibration pickup is synchronously driven to fit the bottom of the main beam, thereby improving the convenience of the device, reducing the time of manual centering and debugging, and improving the overall detection efficiency.

[0022] (2) The intelligent bridge load detection device and method, by setting a shank tooth plate inside the slide frame and setting a threaded rod between the U-shaped frame and the shank tooth plate, makes it easy for the shank tooth plate to rise and fit with the tooth block at the bottom of the tooth frame box, forming a stable limit and convenient lateral adjustment of the fitting position, thereby improving the flexibility of use.

[0023] (3) The intelligent bridge load detection device and method, by threading a threaded fastening pin on the top of the base and rotatably setting a pad at the bottom of the threaded fastening pin, makes it easy for the entire device to drive the pad to fit hard with the ground through the threaded fastening pin, thereby improving the overall stability of the device.

[0024] (4) The intelligent bridge load detection device and method, by arranging a roller on the inner wall of the extrusion groove, enables the roller to replace the extrusion groove to roll and extrude the T-column when the extrusion groove and the T-column are extruded and lifted, thereby further reducing the extrusion and lifting resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 It is a cross-sectional view of the toothed frame box structure of the present invention;

[0027] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0028] Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0029] Figure 5 It is an expanded view of the slideway frame and the toothed frame box structure of the present invention;

[0030] Figure 6 It is an expanded view of the slideway frame and the toothed frame box structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the pre-centering and debugging mechanism structure of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the bonding detection mechanism of the present invention;

[0033] Fig. 9 A cross-sectional view of the internal thread groove inclined plate structure of the present invention;

[0034] Fig.10 This is a schematic diagram of the operation of the pre-centering debugging mechanism of the present invention;

[0035] Fig.11 It is a schematic diagram of the operation of the bonding detection mechanism of the present invention.

[0036] In the figure: 1, base; 2, slide frame; 3, toothed frame box; 4, guide roller; 5, fitting detection mechanism; 501, servo motor; 502, bidirectional threaded rod; 503, internal thread groove inclined plate; 504, strain sensor; 505, T-type column; 506, vibration pickup; 507, extrusion slot; 508, PLC controller; 509, roller; 6, pre-centering debugging mechanism; 601, thread centering rod; 602, thread sleeve; 60 3. Centering rod; 604. Pulley; 605. Belt; 7. Centering reminder mechanism; 701. Mounting slot; 702. Control button; 703. Centering reminder; 8. First electric telescopic rod; 9. Second electric telescopic rod; 10. U-shaped frame; 11. Threaded rod; 12. Toothed plate with handle; 13. Limiting slide rod; 14. Sliding hole; 15. Limiting rod; 16. Limiting slip ring with handle; 17. Threaded fastening pin; 18. Pad. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0038] See also Figure 1-11The present invention provides a technical solution: an intelligent bridge load detection device, comprising a base 1, a slide frame 2 and a toothed frame box 3, the slide frame 2 is arranged on the top of the base 1, the toothed frame box 3 is arranged on the top of the slide frame 2 for transverse sliding, both sides of the top of the base 1 are fixedly connected with a first electric telescopic rod 8, the top of the extended end of the first electric telescopic rod 8 is fixedly connected with the side of the slide frame 2 through a bracket, the front and rear sides of the top of the toothed frame box 3 are rotatably provided with guide rollers 4, and the guide rollers 4 are equidistantly provided, and the bottom of the slide frame 2 A second electric telescopic rod 9 is fixedly connected to the bracket, and a U-shaped frame 10 is fixedly connected to the top of the extended end of the second electric telescopic rod 9. A threaded rod 11 is rotatably connected to one side of the inner cavity of the U-shaped frame 10 through a bearing, and one end of the threaded rod 11 extends to the outside of the U-shaped frame 10. A toothed plate 12 with a handle that is used in conjunction with the toothed frame box 3 is threadedly connected to the surface of the threaded rod 11. A limiting slide rod 13 is fixedly connected between the two sides of the inner cavity of the U-shaped frame 10, and a sliding hole 14 that is slidably matched with the limiting slide rod 13 is opened on one side of the toothed plate 12 with a handle.

[0039] Among them, in order to facilitate the overall stability of the stabilizing device, both sides of the top of the base 1 are threadedly connected with threaded fastening pins 17 through threaded grooves, and one end of the threaded fastening pin 17 extends to the bottom of the base 1, and the end of the threaded fastening pin 17 extending to the bottom of the base 1 is rotatably connected to a pad 18 through a bearing.

[0040] As a preferred embodiment: In order to facilitate the strain sensor 504 and the T-column 505 to synchronously perform fitting detection with the side wall and the bottom surface of the main beam, a fitting detection mechanism 5 is arranged on the toothed frame box 3, and the fitting detection mechanism 5 includes a servo motor 501, and the servo motor 501 is fixedly arranged on one side of the toothed frame box 3 through a bracket, and the output shaft of the servo motor 501 is fixedly connected with a bidirectional threaded rod 502 through a coupling, and one end of the bidirectional threaded rod 502 passes through the toothed frame box 3 and extends to the outside of the toothed frame box 3, and both sides of the surface of the bidirectional threaded rod 502 and located inside the toothed frame box 3 are threadedly connected with an internal thread groove inclined plate 503, and the internal thread groove inclined plate 503 is threadedly connected with the internal thread groove inclined plate 503. A strain sensor 504 is installed on one side of the grooved inclined plate 503 through a slot, a T-shaped column 505 is vertically slidably arranged inside the toothed frame box 3, a vibration pickup 506 is installed on the top of the T-shaped column 505 through a slot, and the model of the vibration pickup 506 is YD-104, an extrusion groove 507 for use with the T-shaped column 505 is opened on one side of the internal threaded groove inclined plate 503, a PLC controller 508 is installed on the top of the base 1, and the model of the PLC controller 508 may be BR010-11T8X, and a roller 509 for use with the T-shaped column 505 is rotatably arranged between the front and rear sides of the inner cavity of the extrusion groove 507.

[0041] As a preferred embodiment: in order to facilitate automatic centering and debugging of the detection position, a pre-centering and debugging mechanism 6 is arranged between the fitting detection mechanism 5 and the toothed frame box 3, and the pre-centering and debugging mechanism 6 includes a threaded centering rod 601, and two threaded centering rods 601 are arranged, and the two threaded centering rods 601 are respectively rotatably arranged on both sides of the toothed frame box 3 through a bracket, and the threads of the two threaded centering rods 601 are arranged in reverse, and the surface of the threaded centering rod 601 is threadedly connected with a threaded sleeve 602, and the top of the threaded sleeve 602 is fixedly connected with a centering long rod 603, and the surface of the threaded centering rod 601 and the two sides of the surface of the bidirectional threaded rod 502 are fixedly connected with pulleys 604, and a belt 605 is connected between the two pulleys 604 on the same side;

[0042] As a detailed explanation: both sides of the rear side of the toothed frame box 3 are fixedly connected to the limiting long rod 15, the surface of the limiting long rod 15 is slidably connected to the limiting slip ring 16 with a handle, and the front side of the limiting slip ring 16 with a handle on the same side is fixedly connected to the rear side of the threaded sleeve 602.

[0043] As a preferred embodiment: In order to facilitate active prompts of changes in the centering adjustment process, a centering prompt mechanism 7 is commonly provided on the pre-centering debugging mechanism 6 and the toothed frame box 3, and the centering prompt mechanism 7 includes an installation groove 701, two installation grooves 701 are provided, and the two installation grooves 701 are respectively opened on the opposite sides of the two centering long rods 603, and a control button 702 is fixedly connected inside the installation groove 701, and both sides of the front side of the toothed frame box 3 are installed with centering prompters 703 used in conjunction with the control button 702.

[0044] The present invention also discloses an intelligent bridge load detection method, which specifically comprises the following steps:

[0045] S1. Roughly align and select the detection position: through the moving device, the internal thread groove inclined plates 503 on both sides of the top of the device are relatively evenly distributed on the inclined surfaces on both sides of the main beam, and then the first electric telescopic rod 8 is started to make the slide frame 2 and the toothed frame box 3 rise. The toothed frame box 3 rises synchronously and drives the guide roller 4 to rise until the top of the guide roller 4 is in contact with the bottom surface of the main beam;

[0046] S2, automatic centering pre-control: the servo motor 501 is started in forward rotation, and the servo motor 501 starts to drive the bidirectional threaded rod 502 to rotate. The bidirectional threaded rod 502 rotates, and the two internal thread groove inclined plates 503 on its surface respectively carry the strain sensor 504 to move synchronously to both sides. The bidirectional threaded rod 502 rotates synchronously with the transmission of the pulley 604 and the belt 605 to drive the threaded centering rod 601 to rotate. When the two threaded centering rods 601 rotate, the two threaded sleeves 602 on the surfaces of the two threaded centering rods 601 respectively carry the centering long rod 603 to synchronously fit the inclined surfaces on both sides of the main beam. When the centering long rod 603 on one side is in contact with the inclined surface of the main beam in advance, the centering long rod 603 is pushed by the stress of the extended end, so that the toothed frame box 3 is moved horizontally as a whole, and the centering position is continuously and automatically corrected until the two centering long rods 603 are synchronously fitted to the inclined surface of the main beam;

[0047] S3, centering completion prompt: When the centering long rod 603 fits with the side wall of the main beam, the centering long rod 603 will also synchronously drive the control button 702 to be pressed and fit with the side wall of the main beam, so that the control button 702 is stressed. When the control button 702 is stressed, the corresponding centering indicator 703 emits sound and light prompts. When both centering indicators 703 emit sound and light prompts, the centering is completed.

[0048] S4, centering and fitting detection: after the debugging of the centering detection position of the above-mentioned two centering long rods 603 is completed, the operator then starts the second electric telescopic rod 9, and lifts the shank tooth plate 12 through the extended end of the second electric telescopic rod 9, so that the shank tooth plate 12 and the tooth block at the bottom of the toothed frame box 3 are fitted and limited, and then the servo motor 501 is reversed and started. When the servo motor 501 reverses and drives the two-way threaded rod 502 to rotate, the corresponding two internal thread groove inclined plates 503 will synchronously fit to the inclined surfaces on both sides of the main beam, and the two centering long rods 603 will synchronously disperse and move to both sides, gradually and synchronously break away from the fitting relationship with the main beam, and the internal thread groove inclined plates 503 will synchronously drive the rollers 509 to move when they move. The movement of shaft 509 will squeeze and lift the T-column 505 in the toothed frame box 3, causing the internal thread groove inclined plate 503 to carry the strain sensor 504 to fit the side wall of the main beam. It can also synchronously drive the T-column 505 to fit the vibration pickup 506 to the bottom of the main beam. The strain sensor 504 and the vibration pickup 506 are electrically connected to the PLC controller 508 through a data cable, and the values ​​detected by the strain sensor 504 and the vibration pickup 506 are displayed by the PLC controller 508. A rectangular groove that slidably matches the T-column 505 is provided at the center of the top of the toothed frame box 3, and rectangular long grooves that slidably match the internal thread groove inclined plate 503 are respectively provided on both sides of the top of the toothed frame box 3.

Claims

1. An intelligent bridge load detection device, comprising a base (1), a chute frame (2) and a toothed frame box (3), wherein the chute frame (2) is arranged on the top of the base (1), and the toothed frame box (3) is arranged on the top of the chute frame (2) in a transverse sliding manner, characterized in that: Both sides of the top of the base (1) are fixedly connected with a first electric telescopic rod (8), the top of the extended end of the first electric telescopic rod (8) is fixedly connected to the side of the slide groove frame (2) through a bracket, the front and rear sides of the top of the toothed frame box (3) are rotatably provided with guide rollers (4), and a plurality of guide rollers (4) are equidistantly provided, a fitting detection mechanism (5) is provided on the toothed frame box (3), a pre-centering debugging mechanism (6) is provided between the fitting detection mechanism (5) and the toothed frame box (3), and a centering prompt mechanism (7) is provided on the pre-centering debugging mechanism (6) and the toothed frame box (3).

2. The intelligent bridge load detection device according to claim 1 is characterized in that: The fitting detection mechanism (5) comprises a servo motor (501), the servo motor (501) is fixedly arranged on one side of the toothed frame box (3) through a bracket, the output shaft of the servo motor (501) is fixedly connected to a bidirectional threaded rod (502) through a coupling, and one end of the bidirectional threaded rod (502) passes through the toothed frame box (3) and extends to the outside of the toothed frame box (3), both sides of the surface of the bidirectional threaded rod (502) and located inside the toothed frame box (3) are threadedly connected to an internal thread groove inclined plate (503), and one side of the internal thread groove inclined plate (503) A strain sensor (504) is installed through a slot, a T-shaped column (505) is vertically slidably arranged inside the toothed frame box (3), a vibration pickup (506) is installed on the top of the T-shaped column (505) through a slot, an extrusion groove (507) matched with the T-shaped column (505) is opened on one side of the internal thread groove inclined plate (503), a PLC controller (508) is installed on the top of the base (1), and a roller (509) matched with the T-shaped column (505) is rotatably arranged between the front and rear sides of the inner cavity of the extrusion groove (507).

3. The intelligent bridge load detection device according to claim 1 is characterized in that: The pre-centering and debugging mechanism (6) comprises a threaded centering rod (601), two threaded centering rods (601) are provided, the two threaded centering rods (601) are rotatably arranged on both sides of the toothed frame box (3) through a bracket, and the threads of the two threaded centering rods (601) are arranged in opposite directions, the surface of the threaded centering rod (601) is threadedly connected with a threaded sleeve (602), the top of the threaded sleeve (602) is fixedly connected with a centering long rod (603), the surface of the threaded centering rod (601) and the two sides of the surface of the bidirectional threaded rod (502) are fixedly connected with pulleys (604), and a belt (605) is connected between the two pulleys (604) on the same side for transmission.

4. The intelligent bridge load detection device according to claim 1 is characterized in that: The centering prompt mechanism (7) comprises a mounting groove (701), two mounting grooves (701) are provided, and the two mounting grooves (701) are respectively opened on opposite sides of two centering long rods (603), a control button (702) is fixedly connected inside the mounting groove (701), and centering prompters (703) used in conjunction with the control button (702) are installed on both sides of the front side of the toothed frame box (3).

5. The intelligent bridge load detection device according to claim 1 is characterized in that: The bottom of the slide frame (2) is fixedly connected to a second electric telescopic rod (9) via a bracket, the top of the extended end of the second electric telescopic rod (9) is fixedly connected to a U-shaped frame (10), one side of the inner cavity of the U-shaped frame (10) is rotatably connected to a threaded rod (11) via a bearing, and one end of the threaded rod (11) extends to the outside of the U-shaped frame (10), and the surface of the threaded rod (11) is threadedly connected to a toothed plate (12) with a handle used in conjunction with the toothed frame box (3).

6. The intelligent bridge load detection device according to claim 5 is characterized in that: A limiting slide bar (13) is fixedly connected between the two sides of the inner cavity of the U-shaped frame (10), and a sliding hole (14) slidably matched with the limiting slide bar (13) is opened on one side of the shank tooth plate (12).

7. The intelligent bridge load detection device according to claim 3 is characterized by: Both sides of the rear side of the toothed frame box (3) are fixedly connected to a limit long rod (15), the surface of the limit long rod (15) is slidably connected to a handle limit slip ring (16), and the front side of the handle limit slip ring (16) on the same side is fixedly connected to the rear side of the threaded sleeve (602).

8. The intelligent bridge load detection device according to claim 1 is characterized in that: Both sides of the top of the base (1) are threadedly connected with a threaded fastening pin (17) through a threaded groove, and one end of the threaded fastening pin (17) extends to the bottom of the base (1), and the end of the threaded fastening pin (17) extending to the bottom of the base (1) is rotatably connected to a pad (18) through a bearing.

9. An intelligent bridge load detection method, characterized in that: The specific steps include: S1. The detection position is roughly aligned and selected: the internal thread groove inclined plates (503) on both sides of the top of the device are caused to be relatively evenly distributed on the inclined surfaces on both sides of the main beam by using a moving device, and then the first electric telescopic rod (8) is started to cause the slide frame (2) and the toothed frame box (3) to rise, and the toothed frame box (3) rises synchronously with the guide roller (4) until the top of the guide roller (4) is in contact with the bottom surface of the main beam; S2, automatic centering pre-control: the servo motor (501) is started in forward rotation, and the servo motor (501) starts to drive the bidirectional threaded rod (502) to rotate. The bidirectional threaded rod (502) rotates two internal thread groove inclined plates (503) on its surface to carry the strain sensor (504) and move synchronously to both sides. The bidirectional threaded rod (502) rotates synchronously with the transmission of the pulley (604) and the belt (605) to drive the threaded centering rod (601) to rotate. When the two threaded centering rods (601) rotate, the two threaded sleeves (602) on the surfaces of the two threaded centering rods (601) respectively carry the centering long rods (603) to synchronously fit the inclined surfaces on both sides of the main beam. When one side of the centering long rod (603) is in contact with the inclined surface of the main beam in advance, the centering long rod (603) is pushed by the stress of the extended end, so that the toothed frame box (3) is moved horizontally as a whole, and the centering position is continuously and automatically corrected until the two centering long rods (603) are synchronously fitted to the inclined surface of the main beam. S3, centering completion prompt: when the centering long rod (603) fits with the side wall of the main beam, the centering long rod (603) will also synchronously drive the control button (702) to be pressed and fit with the side wall of the main beam, so that the control button (702) is subjected to force, and the centering indicator (703) corresponding to the control button (702) emits sound and light prompts. When both centering indicators (703) emit sound and light prompts, the centering is completed; S4, centering fit detection: After the above two centering rods (603) are debugged for the centering detection position, the operator then starts the second electric telescopic rod (9), and lifts the shank tooth plate (12) through the extension end of the second electric telescopic rod (9), so that the shank tooth plate (12) and the tooth block at the bottom of the toothed frame box (3) are fit and limited, and then the servo motor (501) is reversed and started. When the servo motor (501) reverses and drives the bidirectional threaded rod (502) to rotate, the corresponding two internal thread groove inclined plates (503) will synchronously fit to the inclined surfaces on both sides of the main beam, and the two centering rods (603) will synchronously disperse and move to both sides, and gradually and synchronously separate from the main beam. The internal thread groove inclined plate (503) is in a disengagement relationship. When the internal thread groove inclined plate (503) moves, the roller (509) is synchronously driven to move. The movement of the roller (509) will squeeze and lift the T-shaped column (505) in the toothed frame box (3), so that the internal thread groove inclined plate (503) carries the strain sensor (504) to fit the side wall of the main beam. It can also synchronously drive the T-shaped column (505) to fit the vibration pickup (506) to the bottom of the main beam. The strain sensor (504) and the vibration pickup (506) are both electrically connected to the PLC controller (508) through a data line, and the values ​​detected by the strain sensor (504) and the vibration pickup (506) are displayed by the PLC controller (508).

10. An intelligent bridge load detection method according to claim 9, characterized in that: A rectangular groove slidably matched with the T-shaped column (505) is provided at the center of the top of the toothed frame box (3) in S4, and rectangular long grooves slidably matched with the internal thread groove inclined plate (503) are respectively provided on both sides of the top of the toothed frame box (3).

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