RGV trolley loading platform for automatic centering transportation of prefabricated parts

Abstract

The invention relates to the technical field of material conveying, in particular to an RGV trolley carrying platform for automatic centering transportation of prefabricated parts, and aims to solve the problems that the prefabricated parts are difficult to transfer to correct positions and the working efficiency is low in a conventional transportation mode. The device comprises a moving platform and two sliding rail grooves which are symmetrically distributed and formed in the bottom of the moving platform. A ground rail is assembled in each sliding rail groove in a sliding mode. The positions of the two ground rails are relatively fixed, and a bearing table is fixedly arranged in the center of the top of the movable platform and used for bearing a prefabricated part; the walking unit is used for driving the moving platform to reciprocate on the two ground rails, and the walking unit is arranged in the moving platform; and the centering unit is used for adjusting the position of the prefabricated part on the bearing table, the centering unit is arranged in the bearing table, the movable platform can trigger the centering unit in the moving process, and the prefabricated part placed on the bearing table is centered and adjusted through the centering unit.

Description

Technical Field

[0001] The present invention relates to the technical field of material transportation, and in particular to a load platform of an RGV trolley for automatically centering and transporting precast components. Background Art

[0002] After the precast components are produced, they are transported to the construction site for installation. If there are quality defects such as dimensional deviations of the components, misalignments of the positions of reserved holes and embedded parts, it will cause difficulties in on-site installation, and additional personnel and time are required for on-site repair or returning to the factory for replacement of new components, increasing the construction cost and seriously affecting the installation quality and efficiency. According to field research, the average rework cost caused by precast component defects accounts for 5% of the total construction cost. Conducting quality inspections on all precast components before leaving the factory is an effective means to reduce and eliminate rework and repair during the on-site installation of precast components. Currently, for the quality inspection of precast components, workers place the precast components on the load platform of the RGV trolley through a lifting device, and transport the precast components to the three-dimensional scanning inspection station through the load platform of the RGV trolley. Since it is impossible to ensure that the precast components are at the center of the platform when placing the precast components on the platform through the lifting device, if the position of the precast components is severely offset, some corners of the precast components cannot be scanned and detected during quality inspection by the automatic scanning device, that is, scanning detection dead angles will occur. Therefore, manual assistance is often required for adjustment after hoisting, resulting in low work efficiency. Summary of the Invention

[0003] The present invention provides a load platform of an RGV trolley for automatically centering and transporting precast components to alleviate the problems that it is difficult to transfer precast components to the correct position and the operation efficiency is low in the conventional transportation method.

[0004] In order to alleviate the above technical problems, the technical solution provided by the present invention is as follows:

[0005] The present invention provides a load platform of an RGV trolley for automatically centering and transporting precast components, including a moving platform and two symmetrically distributed slide rail grooves opened at the bottom of the moving platform;

[0006] Each slide rail groove is also slidably equipped with a ground rail;

[0007] The positions of the two ground rails are relatively fixed, and a bearing platform is fixedly arranged at the center of the top of the moving platform, and the bearing platform is used for bearing precast components;

[0008] It further includes:

[0009] A walking unit for driving the moving platform to reciprocate on the two ground rails, and the walking unit is arranged inside the moving platform;

[0010] The centering unit is used to adjust the position of the prefabricated component on the bearing platform. The centering unit is arranged inside the bearing platform. The prefabricated component can be automatically adjusted to the center position of the bearing platform through the centering unit.

[0011] Furthermore,

[0012] The centering unit includes a rotating shaft rotatably mounted at the inner center of the mobile platform;

[0013] The top of the rotating shaft extends to the inside of the bearing platform;

[0014] A first gear is arranged inside the bearing platform, and the first gear is fixedly sleeved on the outer surface of the rotating shaft;

[0015] Two groups of first adjustment columns and second adjustment columns equidistantly distributed around the circumference are slidably mounted on the outer surface of the bearing platform;

[0016] A first rack is fixedly disposed on one end of the first adjustment column and the second adjustment column close to the rotating shaft respectively;

[0017] A plurality of first racks are meshed and assembled with the first gear.

[0018] Furthermore,

[0019] The number of the first adjustment columns and the number of the second adjustment columns are two each, and they are staggeredly distributed;

[0020] A toggle component is arranged at one end of each first adjusting column away from the rotating shaft, and a touch component is also arranged outside the rotating shaft.

[0021] Furthermore,

[0022] The toggle component includes a slide bar;

[0023] A sliding rod is axially slidably mounted in the first adjusting column and the second adjusting column respectively; an end of the sliding rod away from the rotating shaft is connected to the first adjusting column and the second adjusting column;

[0024] A blocking plate is fixedly arranged at one end of the slide rod, and a sliding disc is arranged at the other end;

[0025] The outer wall of the slide bar is sleeved with a third spring.

[0026] Furthermore,

[0027] The actuating parts include a transmission gear disc and a toothless gear disc;

[0028] The transmission gear disc is fixedly sleeved on the outer surface of the rotating shaft;

[0029] An arc groove is provided inside the transmission gear disc;

[0030] A positioning slider is slidably inserted in the arc groove, and a first spring is provided;

[0031] Both ends of the first spring are respectively abutted against the positioning slider and the arc-shaped groove;

[0032] The toothless sprocket is rotationally assembled inside the moving platform through a column;

[0033] A second worm gear is coaxially arranged above the toothless sprocket;

[0034] The second worm gear and the worm are in transmission assembly.

[0035] Furthermore,

[0036] The traveling unit includes a transmission shaft rotatably mounted inside the moving platform;

[0037] Two rollers are also sleeved on the outer surface of each transmission shaft;

[0038] The rollers extend out of the bottom of the moving platform and contact the ground;

[0039] A driving component for driving the transmission shaft is also arranged inside the moving platform. Furthermore,

[0040] The driving component includes a worm;

[0041] A first worm gear is fixedly sleeved on the outer surface of each transmission shaft;

[0042] The first worm gear and the worm are in transmission assembly;

[0043] A driving motor is fixedly arranged inside the moving platform;

[0044] The output end of the driving motor is fixedly assembled with the worm.

[0045] Furthermore,

[0046] The baffle includes a fixed plate and a movable plate;

[0047] A bolt is rotatably arranged inside the top of the fixed plate;

[0048] The movable plate is arranged on the outer surface of the bolt;

[0049] Second gears are fixedly sleeved on both ends of the bolt;

[0050] Second racks meshing with the second gears are slidably assembled at both ends of the fixed plate;

[0051] A first sealing cylinder is fixedly arranged inside the fixed plate;

[0052] A first piston disk is slidably assembled inside the first sealing cylinder;

[0053] A second spring is arranged at one end of the first piston disk close to the rotating shaft;

[0054] The other end of the first piston disc is fixed with a crank rod via a connecting rod;

[0055] The two ends of the curved rod are respectively fixedly connected to the two second racks.

[0056] Furthermore,

[0057] Also includes pneumatic components;

[0058] A pneumatic component is respectively arranged between each first sealing cylinder and the moving platform;

[0059] The pneumatic component includes a second sealing cylinder fixed inside the mobile platform;

[0060] A second piston disc is slidably mounted inside the second sealing cylinder;

[0061] A dome column that slides through the moving platform is fixedly arranged at the bottom of the second piston disc, and the top of the second sealing cylinder is connected to each first sealing cylinder through an air pipe;

[0062] A limit straight plate is arranged between the two slide rail grooves;

[0063] The limiting straight plate is used to push the dome column.

[0064] Furthermore,

[0065] The base of the dome column is semi-spherical;

[0066] Both ends of the limiting straight plate have inclined surfaces;

[0067] The butt joint between the air pipe and the first sealing cylinder is located at a side of the first piston disc away from the rotating shaft.

[0068] Compared with the prior art, the present invention has the following beneficial effects:

[0069] The present invention can enable the mobile platform to move back and forth on the ground rail through the walking unit, and carry and move the prefabricated components. During the movement of the mobile platform, the centering unit will be triggered, and the prefabricated components placed on the load-bearing platform will be centered and adjusted through the centering unit, thereby facilitating the effective detection operation of the subsequent scanning and detection station. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0071] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0072] Figure 2 Schematic diagram of the slide rail groove and ground rail structure of the present invention;

[0073] Figure 3 Schematic diagram of the internal structure of the carrier platform of the present invention;

[0074] Figure 4 Schematic diagram of the internal structure of the moving platform of the present invention;

[0075] Figure 5 Schematic diagram of the position distribution structure of the drive motor of the present invention;

[0076] Figure 6 Schematic diagram of the transmission gear disk and toothless gear disk of the present invention;

[0077] Figure 7 Schematic diagram of the fixed plate and movable plate of the present invention;

[0078] Figure 8 For the present invention Figure 7 Enlarged view at location A in;

[0079] Figure 9 Schematic diagram of the structure of the first sealing cylinder and the second sealing cylinder of the present invention.

[0080] Icon:

[0081] 1. Moving platform; 2. Slide rail groove; 3. Ground rail; 4. Carrier platform; 5. Rotating shaft; 6. First gear; 7. First adjusting column; 8. Second adjusting column; 9. First rack; 10. Housing; 11. Transmission shaft; 12. Roller; 13. Drive motor; 14. Worm; 15. First worm gear; 16. Transmission gear disk; 17. Toothless gear disk; 18. Second worm gear; 19. Positioning slider; 20. First spring; 21. Fixed plate; 22. Movable plate; 23. Plug pin; 24. Second gear; 25. Second rack; 26. Curved rod; 27. First sealing cylinder; 28. Link rod; 29. Second spring; 30. Air pipe; 31. Second sealing cylinder; 32. Second piston disk; 33. Dome column; 34. Slide disk; 35. Slide rod; 36. Third spring; 37. Limit straight plate; 38. First piston disk. Detailed implementation manners

[0082] As Figure 1-7 shown, this solution provides an automatic centering type precast component transportation RGV cart platform, including a moving platform 1 and two symmetrically distributed slide rail grooves 2 opened at the bottom of the moving platform 1;

[0083] Inside each slide rail groove 2, a ground rail 3 is also slidably assembled;

[0084] The positions of the two ground rails 3 are relatively fixed, and a bearing platform 4 is fixedly arranged at the top center of the mobile platform 1, and the bearing platform 4 is used to bear prefabricated components, and the prefabricated components are PC components, such as concrete wall panels, cement boards, etc.;

[0085] Also includes:

[0086] A walking unit, used to drive the mobile platform 1 to reciprocate on the two ground rails 3, and the walking unit is arranged inside the mobile platform 1;

[0087] The centering unit is used to adjust the position of the prefabricated component on the carrier platform 4. The centering unit is arranged inside the carrier platform 4. The prefabricated component can be automatically adjusted to the center position of the carrier platform through the centering unit.

[0088] Specifically, when the walking unit drives the mobile platform 1 to move, the centering unit elastically pushes the prefabricated component back and forth in the horizontal direction toward the center position of the mobile platform 1 to ensure that the prefabricated component is accurately centered.

[0089] Regarding the shape and structure of the centering unit, such as Figure 2 , 3 As shown:

[0090] The centering unit includes a rotating shaft 5 rotatably mounted at the inner center of the mobile platform 1;

[0091] The top of the rotating shaft 5 extends to the inside of the carrying platform 4;

[0092] A first gear 6 is disposed inside the carrier platform 4, and the first gear 6 is fixedly sleeved on the outer surface of the rotating shaft 5;

[0093] Two groups of first adjustment columns 7 and second adjustment columns 8 equidistantly distributed around the circumference are slidably mounted on the outer surface of the support platform 4;

[0094] A first rack 9 is fixedly disposed on one end of the first adjustment column 7 and the second adjustment column 8 close to the rotating shaft 5;

[0095] A plurality of first racks 9 are meshed and assembled with the first gear 6;

[0096] The number of the first adjustment columns 7 and the number of the second adjustment columns 8 are two each, and they are staggeredly distributed;

[0097] A toggle component is disposed at one end of each first adjustment column 7 away from the rotating shaft 5 , and a trigger component is also disposed outside the rotating shaft 5 .

[0098] Specifically, the first adjusting column 7 and the second adjusting column 8 are fixedly provided with a first rack 9 at one end close to the rotating shaft 5, and several first racks 9 are meshed with the first gear 6. The first racks 9 distributed on the first adjusting column 7 and the first racks 9 distributed on the second adjusting column 8 are distributed up and down. When the rotating shaft 5 rotates with the first gear 6, the meshing of the four first racks 9 with the first gear 6 can make the two groups of first adjusting columns 7 and second adjusting columns 8 move synchronously, so that the first adjusting columns 7 and the second adjusting columns 8 can simultaneously adjust the position of the prefabricated components placed on the supporting platform 4.

[0099] The toggle member includes a slide bar 35;

[0100] A slide rod 35 is axially slidably mounted in the first adjustment column 7 and the second adjustment column 8 respectively;

[0101] One end of the sliding rod 35 away from the rotating shaft 5 is connected in series with the first adjusting column 7 and the second adjusting column 8;

[0102] A blocking plate is fixedly provided at one end of the slide rod 35, and a slide plate 34 is provided at the other end;

[0103] A third spring 36 is sleeved on the outer wall of the sliding rod 35 .

[0104] Specifically, since the slide rod 35 can only slide axially, under the action of the third spring 36, the sliding plate 34 and the slide rod 35, the first adjustment column 7 and the second adjustment column 8 can elastically push the prefabricated component through the blocking plate to adjust the displacement.

[0105] Regarding the shape and structure of the touch parts, such as Figure 4-6 As shown:

[0106] The actuating components include a transmission toothed disc 16 and a toothless toothed disc 17;

[0107] The transmission gear disc 16 is fixedly sleeved on the outer surface of the rotating shaft 5;

[0108] An arc groove is provided inside the transmission gear disc 16, and the arc groove and the transmission gear disc 16 are concentrically distributed;

[0109] A positioning slider 19 is slidably inserted in the arc groove, and a first spring 20 is provided;

[0110] The two ends of the first spring 20 are respectively in contact with the positioning slider 19 and the arc groove;

[0111] The toothless toothed disc 17 is rotatably assembled inside the mobile platform 1 through a column;

[0112] Above the toothless gear disk 17, a second worm gear 18 is coaxially arranged. Above the toothless gear disk 17, a connecting column and a movable ratchet wheel are arranged. The connecting column is rotatably inserted inside the moving platform 1. The connecting column is fixedly connected to the toothless gear disk 17. The movable ratchet wheel is fixedly sleeved outside the connecting column. The second worm gear 18 is rotatably sleeved around the movable ratchet wheel. There are ratchet teeth grooves on the inner wall of the second worm gear 18, so that when the second worm gear 18 rotates in two directions, only the rotation in one direction can be limited by the ratchet teeth grooves and the movable ratchet wheel, driving the connecting column and the toothless gear disk 17 to rotate.

[0113] The second worm gear 18 and the worm 14 are in transmission assembly. When the driving motor 13 drives the roller 12 to move towards the scanning and detecting station, the rotation of the second worm gear 18 can drive the connecting column and the toothless gear disk 17 to rotate. When the driving motor 13 drives the roller 12 to move back from the scanning and detecting station, at this time, the second worm gear 18 cannot drive the connecting column and the toothless gear disk 17 to rotate. During the process of the second worm gear 18 driving the toothless gear disk 17 to rotate, it can touch the transmission gear disk 16 and the rotating shaft 5, so as to realize the synchronous driving of the first adjusting column 7 and the second adjusting column 8. When the toothless part of the toothless gear disk 17 contacts the transmission gear disk 16, because the transmission gear disk 16 is not restricted, under the action of the compressed first spring 20, it can make the transmission gear disk 16 drive the rotating shaft 5 to quickly elastically reset, that is, make the first adjusting column 7 and the second adjusting column 8 synchronously reset. By repeatedly driving the first adjusting column 7 and the second adjusting column 8 to move synchronously, the centering adjustment of the prefabricated component above the bearing platform 4 can be frequently carried out, that is, it can be ensured that when the moving platform 1 reaches the scanning and detecting station, the prefabricated component is in the centered position above the bearing platform 4.

[0114] Regarding the shape and structure of the walking unit, as Figure 1 、 2 shown:

[0115] The walking unit includes a transmission shaft 11 rotatably installed inside the moving platform 1;

[0116] Two rollers 12 are also sleeved on the outer surface of each transmission shaft 11;

[0117] The rollers 12 extend out of the bottom of the moving platform 1 and contact the ground;

[0118] A driving component for driving the transmission shaft 11 is also arranged inside the moving platform 1;

[0119] The driving component includes a worm 14;

[0120] A first worm gear 15 is fixedly sleeved on the outer surface of each transmission shaft 11;

[0121] The first worm gear 15 and the worm 14 are in transmission assembly;

[0122] Inside the mobile platform 1, a driving motor 13 is fixedly arranged.

[0123] The output end of the driving motor 13 is fixedly assembled with a worm 14.

[0124] Specifically, when the driving motor 13 drives the worm 14 to rotate, through the meshing of the worm 14 and the first worm gear 15, the transmission shaft 11 can drive the roller 12 to rotate. Since the roller 12 is in close contact with the ground, when the roller 12 runs, the mobile platform 1 can move on the two ground rails 3.

[0125] Regarding the specific structure of the baffle, as Figure 7 、 8 shown:

[0126] The baffle includes a fixed plate 21 and a movable plate 22. The movable plate 22 can maintain a vertically upward state in the use state, and can push the precast member when moving centripetally along with the first adjusting column 7 and the second adjusting column 8.

[0127] A bolt 23 is rotatably arranged inside the top of the fixed plate 21.

[0128] The movable plate 22 is arranged on the outer surface of the bolt 23, and the fixed plate 21 and the movable plate 22 are hinged and assembled.

[0129] Both ends of the bolt 23 are fixedly sleeved with second gears 24.

[0130] Both ends of the fixed plate 21 are slidably assembled with second racks 25 that mesh with the second gears 24. When the positions of the second racks 25 change, the movable plate 22 can be deflected through the bolt 23 and the second gears 24 at the same time.

[0131] A first sealing cylinder 27 is fixedly arranged inside the fixed plate 21.

[0132] A first piston disk 38 is slidably assembled inside the first sealing cylinder 27.

[0133] One end of the first piston disk 38 close to the rotating shaft 5 is provided with a second spring 29.

[0134] The other end of the first piston disk 38 is fixedly provided with a curved rod 26 through a connecting rod 28, and the connecting rod 28 slidably penetrates through the first sealing cylinder 27.

[0135] Both ends of the curved rod 26 are fixedly connected to the two second racks 25 respectively.

[0136] Regarding the shape and structure of the pneumatic component, as Figure 9 shown:

[0137] A pneumatic component is respectively arranged between each first sealing cylinder 27 and the moving platform 1. The pneumatic component can inflate the inside of the first sealing cylinder 27, causing the position of the first piston disk 38 to change and compressing the second spring 29. When the first piston disk 38 displaces, it can drive the two second racks 25 to displace simultaneously through the curved rod 26;

[0138] The pneumatic component includes a second sealing cylinder 31 fixed inside the moving platform 1;

[0139] A second piston disk 32 is slidably assembled inside the second sealing cylinder 31;

[0140] A dome column 33 is fixedly arranged at the bottom of the second piston disk 32 and slidably penetrates through the moving platform 1. And the top of the second sealing cylinder 31 is communicated with each first sealing cylinder 27 through an air pipe 30, and the air pipe 30 slidably penetrates through the moving platform 1;

[0141] A limiting straight plate 37 is arranged between the two slide rail grooves 2, and the position of the limiting straight plate 37 is relatively fixed;

[0142] The limiting straight plate 37 is used to push the dome column 33;

[0143] The bottom of the dome column 33 is semi-spherical;

[0144] Both ends of the limiting straight plate 37 have inclined surfaces;

[0145] The docking point of the air pipe 30 and the first sealing cylinder 27 is on the side of the first piston disk 38 away from the rotating shaft 5.

[0146] When the bottom of the dome column 33 is not pushed by the limiting straight plate 37, it extends. And during the movement of the moving platform 1 towards the scanning and detecting station, the bottom of the dome column 33 will touch the inclined surface at the end of the limiting straight plate 37. The limiting straight plate 37 will push the dome column 33 into the second sealing cylinder 31. At this time, the second piston disk 32 can convey the gas inside the second sealing cylinder 31 to the inside of the multiple first sealing cylinders 27 through the air pipe 30. The docking point of the air pipe 30 and the first sealing cylinder 27 is on the side of the first piston disk 38 away from the rotating shaft 5. When the pressurized gas enters the inside of the first sealing cylinder 27, it can push the first piston disk 38 and compress the second spring 29. At this time, the curved rod 26 can drive the second rack 25 to drive the second gear 24 to rotate, and deflect the movable plate 22 to the vertical state.

[0147] The working principle of this device is:

[0148] Both ends of the ground rail 3 are respectively distributed at the scanning and detecting station and the feeding station of the precast component. The limiting straight plate 37 is located between these two stations and its length is less than that of the ground rail 3. That is, when the moving platform 1 is at the feeding station and moves to the scanning and detecting station, since the limiting straight plate 37 has not yet pushed the dome column 33, the second spring 29 and the first piston disk 38 are in a normal state. At this time, the movable plate 22 and the fixed plate 21 are vertically distributed, not in a vertical state. In this state, the movable plate 22 will not block the feeding of the precast component and the scanning and detecting operation.

[0149] When the moving platform 1 moves the precast component towards the scanning and detecting station, the dome column 33 will move upward under the restriction of the limiting straight plate 37, injecting the air inside the second sealing cylinder 31 into the inside of the first sealing cylinder 27, and then it can drive the second rack 25 to move through the curved rod 26, deflecting the movable plate 22 to be vertically upward. Moreover, during the movement of the moving platform 1, it can also make the two groups of first adjusting columns 7 and second adjusting columns 8 move frequently and reciprocally, and push and adjust the precast component through the four movable plates 22, so that the precast component can be kept at the central position of the bearing table 4. That is, it can ensure that after the moving platform 1 moves to the scanning and detecting station, the placement position of the precast component is standard, enabling the three-dimensional scanning device to perform effective quality inspection and processing.

[0150] This solution has at least the following beneficial effects:

[0151] The load platform of the RGV vehicle for automatic centering transportation of precast components provided by the present invention greatly improves the efficiency and accuracy of precast components during production, quality inspection and installation. By setting up a walking unit and a centering unit, the platform realizes automatic centering adjustment and precise centering transportation of precast components without manual intervention, effectively solves the problem of position deviation existing in traditional transportation methods, avoids the scanning detection dead angle caused thereby, and ensures that the precast components are in the best position when reaching the three-dimensional scanning detection station. Specifically, when the moving platform moves on the ground rail, the centering unit can frequently and reciprocally push the precast component to adjust its position through a rotating shaft, a first gear, a first adjusting column, a second adjusting column and a series of mechanical linkage devices until it is accurately located at the center of the bearing platform. In addition, the walking unit drives the rollers to rotate by a driving motor, enabling the entire platform to move smoothly on the ground rail, and the pneumatic components further ensure that the movable plate can be vertically upward at the necessary moment, so as not to obstruct the feeding and scanning detection of the precast component. This design not only improves the quality inspection efficiency of precast components, reduces the additional repair costs caused by position deviation, but also significantly improves the automation level and work efficiency of the entire operation process, reduces the complexity and labor intensity of manual operation, and provides strong technical support for the whole process of precast components from production to on-site installation. At the same time, by reducing the rework phenomenon caused by defects of precast components, it indirectly promotes the improvement of project quality and construction progress, and has important economic and social benefits.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An RGV trolley loading platform for automatic centering transportation of prefabricated components, characterized by: It comprises a mobile platform (1) and two symmetrically distributed slide rail grooves (2) arranged at the bottom of the mobile platform (1); A ground rail (3) is also slidably mounted inside each of the slide rail grooves (2); The positions of the two ground rails (3) are relatively fixed, and a bearing platform (4) is fixedly arranged at the top center of the mobile platform (1), and the bearing platform (4) is used to bear the prefabricated components; Also includes: A walking unit, used for driving the mobile platform (1) to move back and forth on the two ground rails (3), the walking unit being arranged inside the mobile platform (1); A centering unit is used to adjust the position of the prefabricated component on the carrier platform (4); the centering unit is arranged inside the carrier platform (4); and the prefabricated component can be automatically adjusted to the center position of the carrier platform through the centering unit.

2. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 1 is characterized in that: The centering unit comprises a rotating shaft (5) rotatably mounted at the inner center of the mobile platform (1); The top of the rotating shaft (5) extends to the interior of the supporting platform (4); A first gear (6) is arranged inside the bearing platform (4), and the first gear (6) is fixedly sleeved on the outer surface of the rotating shaft (5); The outer surface of the bearing platform (4) is slidably mounted with two groups of first adjustment columns (7) and second adjustment columns (8) which are equidistantly distributed around the circumference; A first rack (9) is fixedly provided at one end of the first adjustment column (7) and the second adjustment column (8) close to the rotating shaft (5); A plurality of the first racks (9) are meshed and assembled with the first gear (6).

3. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 2 is characterized in that: The number of the first adjustment columns (7) and the number of the second adjustment columns (8) are two each, and they are staggeredly distributed; A shifting component is provided at one end of each first adjusting column (7) away from the rotating shaft (5), and a triggering component is also provided outside the rotating shaft (5).

4. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 3 is characterized in that: The toggle component comprises a slide rod (35); A sliding rod (35) is axially slidably mounted in each of the first adjustment column (7) and the second adjustment column (8); The first adjusting column (7) and the second adjusting column (8) are connected in series at one end of the sliding rod (35) away from the rotating shaft (5); A blocking plate is fixedly arranged at one end of the slide rod (35), and a slide plate (34) is arranged at the other end; The outer wall of the sliding rod (35) is sleeved with a third spring (36).

5. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 4 is characterized in that: The actuating component comprises a transmission toothed disc (16) and a toothless toothed disc (17); The transmission gear disc (16) is fixedly sleeved on the outer surface of the rotating shaft (5); The transmission gear disc (16) is provided with an arc groove inside; A positioning slide block (19) is slidably inserted in the arc-shaped groove, and a first spring (20) is provided; Two ends of the first spring (20) are respectively in contact with the positioning slider (19) and the arc-shaped groove; The toothless toothed disc (17) is rotatably mounted inside the mobile platform (1) via a column; A second worm gear (18) is coaxially arranged above the toothless gear disc (17); The second worm wheel (18) and the worm (14) are transmission assembled.

6. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 5 is characterized in that: The walking unit comprises a transmission shaft (11) rotatably mounted inside the mobile platform (1); The outer surface of each transmission shaft (11) is also provided with two rollers (12); The roller (12) extends out of the bottom of the mobile platform (1) and contacts the ground; A driving component for transmitting the transmission shaft (11) is also provided inside the mobile platform (1).

7. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 6 is characterized by: The driving component comprises a worm (14); A first worm gear (15) is fixedly mounted on the outer surface of each transmission shaft (11); The first worm wheel (15) is transmission-assembled with the worm (14); A driving motor (13) is fixedly arranged inside the mobile platform (1); The output end of the driving motor (13) is fixedly assembled with the worm (14).

8. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 7 is characterized in that: The blocking plate comprises a fixed plate (21) and a movable plate (22); A latch (23) is rotatably provided on the inner side of the top of the fixing plate (21); The movable plate (22) is arranged on the outer surface of the latch (23); Both ends of the latch pin (23) are fixedly sleeved with a second gear (24); Both ends of the fixed plate (21) are slidably equipped with second racks (25) meshing with the second gear (24); A first sealing cylinder (27) is fixedly disposed inside the fixing plate (21); A first piston disc (38) is slidably mounted inside the first sealing cylinder (27); A second spring (29) is provided at one end of the first piston disc (38) close to the rotating shaft (5); The other end of the first piston disc (38) is fixedly provided with a bent rod (26) via a connecting rod (28); The two ends of the curved rod (26) are respectively fixedly connected to the two second racks (25).

9. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 8 is characterized in that: Also includes pneumatic components; One of the pneumatic components is respectively arranged between each of the first sealing cylinders (27) and the moving platform (1); The pneumatic component comprises a second sealing cylinder (31) fixed inside the mobile platform (1); A second piston disc (32) is slidably mounted inside the second sealing cylinder (31); A dome column (33) is fixedly provided at the bottom of the second piston disc (32) and slides through the mobile platform (1), and the top of the second sealing cylinder (31) is connected to each of the first sealing cylinders (27) via an air pipe (30); A limiting straight plate (37) is provided between the two slide rail grooves (2); The limiting straight plate (37) is used to push the dome column (33).

10. The RGV trolley loading platform for automatic centering transportation of prefabricated components according to claim 9 is characterized in that: The bottom of the dome column (33) is in a semi-spherical shape; Both ends of the limiting straight plate (37) have inclined surfaces; The butt joint between the air pipe (30) and the first sealing cylinder (27) is located on the side of the first piston disc (38) away from the rotating shaft (5).

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