An intelligent automated bridge grab crane

Abstract

The present invention relates to the technical field of crane control, and specifically discloses an intelligent automated bridge grab crane. The carrier plate is connected to the hoisting assembly through the second steel wire rope, and a tension sensor for detecting the pulled weight is provided on the first steel wire rope; a first rotating plate and a second rotating plate respectively cooperating with the first grab and the second grab are rotatably provided on the carrier plate, and scraping assemblies are respectively provided on the first grab and the second grab. A second sensor is provided at the upper end of the first grab. When the first grab and the second grab are opened and the first rotating plate corresponds to the second sensor, the scraping assembly can clean the fastening surfaces of the first grab and the second grab as well as the first rotating plate and the second rotating plate. As the first grab and the second grab continue to open, the first rotating plate and the second rotating plate can rotate upward simultaneously; a first sensor is provided at the lower end of the carrier plate, and the first sensor is used to detect the height of the carrier plate from the ground when the first grab and the second grab are fully opened. The present invention is beneficial to avoiding the collision of the grab with the ground and facilitating the cleaning of the grab.

Description

Technical Field

[0001] The invention relates to the technical field of crane control, and in particular to an intelligent automated bridge grab crane. Background Art

[0002] Grab cranes are widely used in ports and docks, mainly for loading and unloading bulk cargoes such as coal, ore, sand, grain, etc. Their powerful grabbing ability and high operating efficiency can greatly improve the throughput and operating efficiency of ports.

[0003] The Chinese patent with the announcement number CN115724344B discloses a weighing device for a garbage grab crane, including a bridge crane, a balance seat for accelerating stability is provided below the bridge crane, and a steel wire rope for moving up and down is provided between the bridge crane and the balance seat, a water inlet pipe communicating with the inner cavity of the balance seat is provided in the middle of the upper end of the balance seat, the interior of the balance seat is filled with water, and the balance seat is provided with a moving groove in the middle of the inner side wall except the inner cavity top wall and the inner cavity bottom wall, and the inside of the four moving grooves is provided with A movable plate, a sealing pad is provided at one end of the four movable plates that are close to each other, a spring is commonly provided between one end of the four movable plates that are far away from each other and the inner side wall of the movable groove, connecting columns are provided at the four corners of the bottom of the balancing seat, and a weighing seat is commonly provided at the lower part of the four connecting columns, and a sponge pad, a U-shaped floor scale and a support plate located therebetween are provided in the inner cavity of the weighing seat, a transfer column is provided in the middle part of the lower end of the support plate, the lower end of the transfer column passes through the bottom wall of the weighing seat and is provided with a control mechanism, and a grab body is provided at the lower part of the control mechanism.

[0004] In the above technical solution, by setting structures such as connecting blocks, connecting columns and metal rods, the water source in the balance seat can flow normally in the balance seat in the first stage. By setting grooves and nozzles, the movable plate and the sealing gasket will be pushed into the groove by the grinding rod in the second stage, thereby connecting with the inner cavity of the balance seat, so that water can be sprinkled along the drainage groove and the nozzle to the grab body for preliminary cleaning. However, this method requires the use of additional water resources, is relatively cumbersome to operate, and it is difficult to use the characteristics of the grab itself to achieve cleaning, and it is difficult to avoid the collision of the grab with the ground. Summary of the invention

[0005] The present invention provides an intelligent automatic bridge grab bucket crane, aiming to solve the problems in the related art that it is difficult to avoid collision between the grab bucket and the ground and it is difficult to clean the grab bucket conveniently.

[0006] An intelligent automated bridge grab crane, comprising a movable main beam, a lifting assembly arranged on the main beam and capable of moving, and a grabbing assembly arranged below the lifting assembly. The grabbing assembly includes a base frame connected to the lifting assembly through a first steel wire rope, a carrier plate slidably connected to the base frame, and a first grab and a second grab rotatably arranged on the carrier plate. The first grab and the second grab are respectively connected to the base frame through connecting arms. The carrier plate is connected to the lifting assembly through a second steel wire rope. A tension sensor for detecting the pulled weight is arranged on the first steel wire rope; a first rotating plate and a second rotating plate respectively cooperating with the first grab and the second grab are rotatably arranged on the carrier plate. When the first rotating plate rotates, the second rotating plate can rotate simultaneously. Scraping assemblies are respectively arranged on the first grab and the second grab. A second sensor is arranged at the upper end of the first grab. When the first grab and the second grab are opened and the first rotating plate corresponds to the second sensor, the scraping assemblies can clean the fastening surfaces of the first grab and the second grab and the first rotating plate and the second rotating plate. As the first grab and the second grab continue to open, the first rotating plate and the second rotating plate can rotate upward simultaneously; a first sensor is arranged at the lower end of the carrier plate. The first sensor is used for detecting the height of the carrier plate from the ground when the first grab and the second grab are fully opened.

[0007] Preferably, a shaft rod is fixedly arranged on the carrier plate. The first rotating plate and the second rotating plate are respectively rotatably connected to the shaft rod. A first rod is slidably arranged on the first rotating plate through a first elastic member. A top rod cooperating with the first rod is arranged on the second grab. When the first rod abuts against the top rod, the first rotating plate and the second rotating plate can rotate upward simultaneously.

[0008] Preferably, a first ring rotatably cooperating with the shaft rod is arranged on the first rotating plate, a second ring rotatably cooperating with the shaft rod is arranged on the second rotating plate. The second ring is connected to the shaft rod through a second elastic member. The first ring is cooperated with the second ring through a gear assembly.

[0009] Preferably, the gear assembly includes a first bevel gear coaxially and fixedly connected to the first ring, a second bevel gear coaxially and fixedly connected to the second ring, and a third bevel gear rotatably connected to the carrier plate. The third bevel gear meshes with the first bevel gear and the second bevel gear simultaneously.

[0010] Preferably, a sliding hole cooperating with the first rod is formed in the carrier plate along the length extension direction of the shaft rod. A second rod is slidably arranged in the sliding hole through a third elastic member.

[0011] Preferably, an arc-shaped portion one is arranged at one end of the first rod close to the sliding hole, an arc-shaped portion two is arranged at one end of the second rod far from the first rod. A guiding surface and a holding surface cooperating with the arc-shaped portion two are arranged on the top rod.

[0012] Preferably, the scraping assembly includes a sliding seat slidably connected to the first grab, a driving member for controlling the movement of the sliding seat, and a first scraping plate connected to the sliding seat through a fourth elastic member. The first scraping plate is used for scraping the materials on the fastening surface of the first grab.

[0013] Preferably, a shaking member is slidably provided on the upper edge of the grab bucket I perpendicular to the moving direction of the sliding seat through an elastic member V. The shaking member includes a mating rod and a linkage rod. A swing rod is rotatably provided on the sliding seat through an elastic member VI, and a stopper block cooperating with the swing rod is fixedly provided on the sliding seat.

[0014] Preferably, when the sliding seat moves downward, the swing rod abuts against the stopper block, and the swing rod can abut against the linkage rod, so that the mating rod disengages from the abutment with the scraper I. When the sliding seat moves upward, the swing rod disengages from the abutment with the stopper block, and the linkage rod abuts against the swing rod, so that the mating rod extends out of the engaging surface of the grab bucket I.

[0015] Preferably, when the rotating plate I rotates, it can contact the inner wall of the grab bucket I. There is a baffle I on the grab bucket I that cooperates with the rotating plate I. When the rotating plate II rotates, it can contact the inner wall of the grab bucket II. There is a baffle II on the grab bucket II that cooperates with the rotating plate II.

[0016] With the above technical solutions, the beneficial effects of the present invention are as follows: During the process of the grab bucket I and the grab bucket II grabbing materials, the steel wire rope I and the steel wire rope II are remotely controlled so that the carrier plate moves downward relative to the base frame, and the grab bucket I and the grab bucket II gradually open. The rotating plate I scrapes off the materials remaining on the inner wall of the grab bucket I, and the rotating plate II scrapes off the materials remaining on the inner wall of the grab bucket II. When the side surface of the rotating plate I is flush with the engaging surface of the grab bucket I, the side surface of the rotating plate II is flush with the engaging surface of the grab bucket II. At this time, the rotating plate I corresponds to the sensor II, and the sensor II feeds back a signal to the remote control system, so that the scraper II and the scraper I move downward in sequence, thereby being able to scrape off the remaining materials on the side surface of the rotating plate I, the engaging surface of the grab bucket I, the side surface of the rotating plate II, and the engaging surface of the grab bucket II. Then, the scraper II and the scraper I move upward in sequence to reset. During the upward movement of the scraper II and the scraper I, the scraper II and the scraper I can reciprocally shake, thereby shaking off the remaining materials on the scraper II and the scraper I to facilitate the scraper II and the scraper I to maintain a clean state. When the scraper II and the scraper I are reset, as the carrier plate continues to move downward relative to the base frame, when the holding surface abuts against the rod II, the rotating plate I and the rotating plate II can rotate upward simultaneously. At this time, the carrier plate is remotely controlled to move upward relative to the base frame, so that the grab bucket I and the grab bucket II gradually close to grab the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the grab bucket I and the grab bucket II of the present invention.

[0019] Figure 3 It is a schematic diagram of the cooperation among the grab bucket I, the grab bucket II, the sliding seat, and the scraper I of the present invention.

[0020] Figure 4 It is a cross-sectional view of the grab bucket I and the grab bucket II of the present invention when they are completely closed.

[0021] Figure 5 This is a cross-sectional view of the grab bucket 1 and grab bucket 2 of the present invention when they are opened and the rotating plate 1 corresponds to the sensor 2.

[0022] Figure 6 This is a cross-sectional view of the grab bucket 1 and grab bucket 2 of the present invention when they are opened and the rotating plates 1 and 2 rotate upward.

[0023] Figure 7 This is a schematic structural view of the grab bucket 1 and grab bucket 2 of the present invention.

[0024] Figure 8 This is a schematic view of the cooperation of the rotating plate 1, rotating plate 2 and the carrier plate of the present invention.

[0025] Figure 9 This is a schematic view of the cooperation of the rotating plate 1, rotating plate 2 and the shaft rod of the present invention.

[0026] Figure 10 This is a cross-sectional view of the rotating plate 1, rotating plate 2, the carrier plate and the shaft rod of the present invention.

[0027] Figure 11 This is a schematic view of the cooperation of the sliding seat, the scraping plate 1, the cooperating rod, the linkage rod and the swing rod of the present invention.

[0028] Reference numerals: 10, main beam; 11, wire rope 1; 111, tension sensor; 12, wire rope 2; 20, hoisting assembly; 30, base frame; 31, carrier plate; 310, sensor 1; 311, shaft rod; 312, bevel gear 3; 313, sliding hole; 314, elastic member 3; 315, rod 2; 32, grab bucket 1; 320, baffle 1; 321, sensor 2; 33, grab bucket 2; 330, baffle 2; 331, ejector rod; 3311, guiding surface; 3312, holding surface; 34, connecting arm; 35, rotating plate 1; 351, ring 1; 352, rod 1; 353, bevel gear 1; 354, elastic member 1; 36, rotating plate 2; 361, ring 2; 362, elastic member 2; 363, bevel gear 2; 41, sliding seat; 42, driving member; 43, scraping plate 1; 44, elastic member 5; 45, cooperating rod; 46, linkage rod; 47, swing rod; 48, stop block. Detailed Description of the Invention

[0029] The following describes in detail the embodiments of the present invention, and the examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] As Figures 1 - 5As shown in the figure, an intelligent automated bridge grab crane includes a movable main beam 10, a hoisting assembly 20 disposed on the main beam 10 and capable of moving, and a grabbing assembly disposed below the hoisting assembly 20. The grabbing assembly includes a base frame 30 connected to the hoisting assembly 20 through a first steel wire rope 11, a carrier plate 31 slidably connected to the base frame 30, and a first grab 32 and a second grab 33 rotatably disposed on the carrier plate 31. The first grab 32 and the second grab 33 are respectively rotatably connected to the base frame 30 through connecting arms 34. The carrier plate 31 is connected to the hoisting assembly 20 through a second steel wire rope 12. A tension sensor 111 for detecting the pulled weight is provided on the first steel wire rope 11. A first sensor 310 is provided at the lower end of the carrier plate 31. The first sensor 310 is used to detect the height of the carrier plate 31 from the ground when the first grab 32 and the second grab 33 are fully opened, and can feedback to the remote control system to avoid sudden collisions between the first grab 32 and the second grab 33 and the ground.

[0031] As Figures 6 - 10 shown in the figure, a shaft rod 311 is fixedly provided on the carrier plate 31. A first rotating plate 35 and a second rotating plate 36 respectively cooperating with the first grab 32 and the second grab 33 are rotatably provided on the shaft rod 311. The first grab 32 has an arc surface one cooperating with the first rotating plate 35, and the second grab 33 has an arc surface two cooperating with the second rotating plate 36. When the first rotating plate 35 rotates, it can contact the inner wall of the first grab 32, and when the second rotating plate 36 rotates, it can contact the inner wall of the second grab 33. The first grab 32 has a first baffle 320 cooperating with the first rotating plate 35, and the second grab 33 has a second baffle 330 cooperating with the second rotating plate 36. The first rotating plate 35 has a first ring 351 rotatably cooperating with the shaft rod 311, and the second rotating plate 36 has a second ring 361 rotatably cooperating with the shaft rod 311. The second ring 361 is connected to the shaft rod 311 through an elastic member two 362. The elastic member two 362 is specifically a torsion spring. The first ring 351 cooperates with the second ring 361 through a gear assembly. The gear assembly includes a first bevel gear 353 coaxially and fixedly connected to the first ring 351, a second bevel gear 363 coaxially and fixedly connected to the second ring 361, and a third bevel gear 312 rotatably connected to the carrier plate 31. The third bevel gear 312 meshes with both the first bevel gear 353 and the second bevel gear 363. Therefore, when the first rotating plate 35 rotates, the second rotating plate 36 can rotate simultaneously.

[0032] A rod 352 is slidably provided on the ring 351 through an elastic member 354. The elastic member 354 is a spring. A sliding hole 313 matching with the rod 352 is formed in the carrier plate 31 along the length extension direction of the shaft rod 311. A rod 315 is slidably provided in the sliding hole 313 through an elastic member 314. The elastic member 314 is specifically a spring. The grab 33 is provided with a ejector rod 331 matching with the rod 315. One end of the rod 352 close to the sliding hole 313 has a first arc portion. One end of the rod 315 away from the rod 352 has a second arc portion. The ejector rod 331 is provided with a guiding surface 3311 and a holding surface 3312 matching with the second arc portion. In the initial state, the grab 32 and the grab 33 are in a fully closed state. At this time, the rotating plate 35 abuts against the baffle 320, and the rotating plate 36 abuts against the baffle 330. The elastic member 362 is in a state of storing energy. The rod 352 is located in the sliding hole 313. One end of the rod 315 away from the rod 352 extends out of the carrier plate 31. During the downward movement of the carrier plate 31 relative to the base frame 30, the grab 32 and the grab 33 are gradually opened, and the ejector rod 331 gradually approaches the rod 315. When the guiding surface 3311 abuts against the second arc portion, the rod 315 gradually moves into the sliding hole 313 and abuts against the rod 352. During this process, the elastic member 314 is compressed. When the holding surface 3312 abuts against the rod 315, the first arc portion moves to the edge of the sliding hole 313. At this time, under the action of the elastic member 362, the rotating plate 35 and the rotating plate 36 can rotate upward simultaneously. During the upward movement of the carrier plate 31 relative to the base frame 30, the grab 32 and the grab 33 are gradually closed. During this process, the baffle 320 can abut against the rotating plate 35, and the baffle 330 can abut against the rotating plate 36. When the grab 32 and the grab 33 are fully closed, the rod 352 is reset to the initial state again.

[0033] Such as Figures 1 - 7 And Figure 11As shown in the figure, scraping components are respectively provided on the first grab bucket 32 and the second grab bucket 33. The scraping component includes a sliding seat 41 slidably connected to the first grab bucket 32, a driving member 42 for controlling the movement of the sliding seat 41, and a first scraping plate 43 connected to the sliding seat 41 through a fourth elastic member. The fourth elastic member is specifically a spring. The driving member 42 can be an electric push rod or a hydraulic cylinder. The first scraping plate 43 is used to scrape the materials on the engaging surface of the first grab bucket 32 and the first rotating plate 35. A shaking member is slidably provided on the first grab bucket 32 along the direction perpendicular to the movement of the sliding seat 41 through a fifth elastic member 44. The fifth elastic member 44 is specifically a spring. The shaking member includes a matching rod 45 and a linkage rod 46. The matching rod 45 has a plurality of protruding portions. A swinging rod 47 is rotatably provided on the sliding seat 41 through a sixth elastic member. The sixth elastic member is specifically a torsion spring. A stopper 48 cooperating with the swinging rod 47 is fixedly provided on the sliding seat 41. It should be noted that the elastic coefficient of the fifth elastic member 44 is greater than that of the sixth elastic member. When the sliding seat 41 moves downward, the swinging rod 47 abuts against the stopper 48, and the swinging rod 47 can abut against the linkage rod 46 so that the matching rod 45 is disengaged from abutting against the first scraping plate 43. When the sliding seat 41 moves upward, the swinging rod 47 is disengaged from abutting against the stopper 48, and the linkage rod 46 abuts against the swinging rod 47 so that the matching rod 45 extends out of the engaging surface of the first grab bucket 32. Thus, with the cooperation of the protruding portions and the fourth elastic member, when the first scraping plate 43 moves upward, the first scraping plate 43 can reciprocate and shake.

[0034] It should be noted that the scraping component on the second grab bucket 33 has the same structure as the scraping component on the first grab bucket 32. In the initial state, the second scraping plate on the second grab bucket 33 is located above the first scraping plate 43.

[0035] A second sensor 321 is provided at the upper end of the first grab bucket 32. When the first grab bucket 32 and the second grab bucket 33 are opened and the first rotating plate 35 corresponds to the second sensor 321, the scraping component can clean the engaging surfaces of the first grab bucket 32 and the second grab bucket 33, as well as the first rotating plate 35 and the second rotating plate 36.

[0036] Specific working principle: Refer to Figures 1 - 11, during the process of the grab bucket one 32 and the grab bucket two 33 grabbing materials, remotely control the wire rope one 11 and the wire rope two 12 so that the carrier plate 31 moves downward relative to the base frame 30, the grab bucket one 32 and the grab bucket two 33 gradually open, the rotating plate one 35 scrapes off the materials remaining on the inner wall of the grab bucket one 32, and the rotating plate two 36 scrapes off the materials remaining on the inner wall of the grab bucket two 33. When the side surface of the rotating plate one 35 is flush with the fastening surface of the grab bucket one 32, the side surface of the rotating plate two 36 is flush with the fastening surface of the grab bucket two 33. At this time, the rotating plate one 35 corresponds to the sensor two 321, and the sensor two 321 feeds back a signal to the remote control system so that the scraper two and the scraper one 43 move downward in sequence, so as to be able to scrape off the remaining materials on the side surface of the rotating plate one 35, the fastening surface of the grab bucket one 32, the side surface of the rotating plate two 36, and the fastening surface of the grab bucket two 33. Then the scraper two and the scraper one 43 move upward in sequence to reset. During the upward movement of the scraper two and the scraper one 43, the scraper two and the scraper one 43 can reciprocate and vibrate, and then shake off the remaining materials on the scraper two and the scraper one 43, so as to facilitate the scraper two and the scraper one 43 to maintain a clean state. When the scraper two and the scraper one 43 are reset, as the carrier plate 31 continues to move downward relative to the base frame 30, when the holding surface 3312 abuts against the rod two 315, the rotating plate one 35 and the rotating plate two 36 can rotate upward simultaneously. At this time, remotely control the carrier plate 31 to move upward relative to the base frame 30 so that the grab bucket one 32 and the grab bucket two 33 gradually close to grab the materials. During this process, the baffle one 320 can abut against the rotating plate one 35, and the baffle two 330 can abut against the rotating plate two 36. When the grab bucket one 32 and the grab bucket two 33 are completely closed, the rod one 352 resets to the initial state again.

[0037] It should be noted that in this embodiment, the rotating plate one 35 and the rotating plate two 36 are respectively U-shaped. In order to reduce the scattering of the powdery materials in the grab bucket one 32 and the grab bucket two 33 when the grab bucket one 32 and the grab bucket two 33 are completely closed, the U-shaped openings of the rotating plate one 35 and the rotating plate two 36 can be closed.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An intelligent automatic bridge grab crane, comprising a movable main beam, a lifting assembly disposed on the main beam and capable of movement, and a grab assembly disposed below the lifting assembly, characterized in that: The grab assembly includes a base frame connected to the lifting assembly through a steel wire rope 1, a carrier plate slidably connected to the base frame, and a grab bucket 1 and a grab bucket 2 rotatably arranged on the carrier plate, wherein the grab bucket 1 and the grab bucket 2 are respectively connected to the base frame through a connecting arm, the carrier plate is connected to the lifting assembly through a steel wire rope 2, and a tension sensor for detecting the pulled weight is arranged on the steel wire rope 1; A rotating plate 1 and a rotating plate 2 are rotatably provided on the carrier plate, and the rotating plate 1 and the rotating plate 2 are respectively matched with the grab bucket 1 and the grab bucket 2. When the rotating plate 1 rotates, the rotating plate 2 can rotate simultaneously. The grab bucket 1 and the grab bucket 2 are respectively provided with a scraping assembly. A sensor 2 is provided at the upper end of the grab bucket 1. When the grab bucket 1 and the grab bucket 2 are opened and the rotating plate 1 corresponds to the sensor 2, the scraping assembly can clean the buckling surface of the grab bucket 1 and the grab bucket 2 and the rotating plate 1 and the rotating plate 2. As the grab bucket 1 and the grab bucket 2 continue to open, the rotating plate 1 and the rotating plate 2 can rotate upward simultaneously. A sensor 1 is provided at the lower end of the carrier plate, and the sensor 1 is used to detect the height of the carrier plate from the ground when the grab bucket 1 and the grab bucket 2 are fully opened; The scraping assembly includes a slide seat slidably connected to the grab bucket 1, a driving member controlling the movement of the slide seat, and a scraper plate 1 connected to the slide seat via an elastic member 4, wherein the scraper plate 1 is used to scrape the material on the engaging surface of the grab bucket 1; The grab bucket is provided with a shaking piece on the upper side perpendicular to the direction of movement of the slide seat through the elastic piece 5, and the shaking piece includes a matching rod and a connecting rod. A swing rod is provided on the slide seat through the elastic piece 6, and a stopper matching the swing rod is fixed on the slide seat. When the slide moves downward, the swing rod abuts against the block, and the swing rod can abut against the connecting rod, so that the matching rod and the scraper are separated from the abutment; when the slide moves upward, the swing rod is separated from the abutment with the block, and the connecting rod abuts against the swing rod, so that the matching rod extends out of the buckling surface of the grab bucket.

2. The intelligent automatic bridge grab crane according to claim 1, characterized in that: A shaft rod is fixed on the carrier plate, and rotating plate 1 and rotating plate 2 are respectively connected to the shaft rod for rotation. Rod 1 is slidably provided on rotating plate 1 through elastic member 1, and grab bucket 2 is provided with a push rod matched with rod 1. When rod 1 and push rod are stopped, rotating plate 1 and rotating plate 2 can rotate upward at the same time.

3. The intelligent automatic bridge grab crane according to claim 2, characterized in that: The rotating plate 1 is provided with a ring 1 which is rotatably matched with the shaft rod, the rotating plate 2 is provided with a ring 2 which is rotatably matched with the shaft rod, the ring 2 is connected to the shaft rod through the elastic member 2, and the ring 1 is matched with the ring 2 through the gear assembly.

4. The intelligent automatic bridge grab crane according to claim 3, characterized in that: The gear assembly includes a bevel gear 1 coaxially fixedly connected to the ring, a bevel gear 2 coaxially fixedly connected to the ring, and a bevel gear 3 rotatably connected to the carrier plate. The bevel gear 3 is meshed with the bevel gear 1 and the bevel gear 2 at the same time.

5. The intelligent automatic bridge grab crane according to claim 2, characterized in that: A sliding hole matched with the rod 1 is provided in the carrier plate along the extension direction of the shaft rod, and the rod 2 is slidably arranged in the sliding hole through the elastic member 3.

6. The intelligent automatic bridge grab crane according to claim 5, characterized in that: The end of the rod one close to the sliding hole has an arc-shaped portion one, the end of the rod two away from the rod one has an arc-shaped portion two, and the top rod has a guiding surface and a retaining surface matched with the arc-shaped portion two.

7. An intelligent automatic bridge grab crane according to any one of claims 1-6, characterized in that: When the rotating plate 1 rotates, it can contact the inner wall of the grab bucket 1, and the grab bucket 1 has a baffle 1 that matches the rotating plate 1. When the rotating plate 2 rotates, it can contact the inner wall of the grab bucket 2, and the grab bucket 2 has a baffle 2 that matches the rotating plate 2.

Images