Crane box girder turnover device

Abstract

The utility model discloses a crane box girder turnover device which comprises a base, box bodies are fixedly installed on the two sides of the top of the base, a motor is fixedly installed at the position, close to the bottom of the box body, of the right side of the box body on the right side, a rotating shaft is fixedly installed at the output end of the motor, and a gear is fixedly installed outside the rotating shaft. The top of the gear is movably meshed with a gear ring, a rotating ring is fixedly installed on the inner side of the gear ring, a supporting table is arranged in the rotating ring, a hydraulic rod is fixedly installed in the middle of the bottom of the inner wall of the supporting table, a frame is fixedly installed at the top end of the hydraulic rod, and a roller is rotationally connected to the inner side of the frame through a bearing. Through the cooperation of the structures, the box girder can be directly overturned, so that the overturning efficiency of the box girder can be improved, and the overturning safety of the box girder can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane box girder processing, in particular to a crane box girder overturning device. Background Art

[0002] Gantry cranes can be divided into frame beams, box beams, and honeycomb beams according to the main beam structure. The box beam is welded into a box structure using steel plates, which has the characteristics of high safety and high rigidity. It is generally used for large and super-large tonnage gantry cranes. The box girder also has the disadvantages of high cost, heavy weight, poor wind resistance, etc. Since the box girder needs to be welded using steel plates, it needs to be flipped during the welding process. The existing publication number CN219603033U discloses a crane box girder flipping device. When flipping the box girder, there is no need for manpower to support the box girder to control the balance, which greatly saves manpower and effectively avoids the box girder slipping during flipping. At the same time, it increases the safety at work and can be operated by one person, which improves work efficiency, avoids direct contact lifting between the wire rope and the beam box, and reduces the deformation of the beam box. However, the flipping device needs to use external lifting equipment and wire ropes to lift and flip the crane box girder. This flipping method is relatively cumbersome to operate, and the flipping efficiency of the box girder is low. At the same time, the safety of the box girder flipping is poor, which brings certain adverse effects to actual use, so it needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to provide a crane box girder flipping device, which realizes direct flipping of the box girder, thereby improving the efficiency of box girder flipping and improving the safety of box girder flipping, bringing certain favorable effects on actual use and solving the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane box girder flipping device, comprising a base, a box body is fixedly installed on both sides of the top of the base, through holes are opened on the left and right sides of the box body, a motor is fixedly installed on the right side of the box body and close to its bottom, a rotating shaft is fixedly installed on the output end of the motor, the other end of the rotating shaft is rotatably connected to the inner wall of the box body through a bearing, a gear is fixedly installed on the outside of the rotating shaft and located inside the box body, a gear is movably meshed with a gear ring on the top of the gear, a rotating ring is fixedly installed on the inner side of the gear ring, a support platform is provided inside the rotating ring, a through groove is opened on the top of the support platform, a first hydraulic rod is fixedly installed in the middle of the bottom of the inner wall of the support platform, a frame is fixedly installed on the top of the first hydraulic rod, and a roller is rotatably connected to the inner side of the frame body through a bearing.

[0005] Preferably, a rotating groove is provided on the outside of the rotating ring and close to the right side thereof, a rotating sleeve is rotatably connected to the inner side of the rotating groove, and the rotating sleeve is fixedly connected to the inner wall of the box body through a connecting rod.

[0006] Preferably, a second hydraulic rod is fixedly mounted on both the front and rear sides of the inner wall of the rotating ring, and an L-shaped fixing plate is fixedly mounted on the other end of the second hydraulic rod.

[0007] Preferably, a damping shock absorber is fixedly mounted on the bottom of the support platform, and the bottom of the damping shock absorber is fixedly connected to the bottom of the inner wall of the rotating ring.

[0008] Preferably, sliders are fixedly installed on the front and rear sides of the frame, and sliding grooves are fixedly installed on the front and rear sides of the inner wall of the support platform, and the sliders are slidably connected and adapted to the sliding grooves.

[0009] Preferably, an anti-skid pad is fixedly installed on the top of the support platform, and the anti-skid pad is made of rubber.

[0010] Preferably, electric telescopic rods are fixedly installed on the front and rear sides of the bottom of the inner wall of the box, and a clamping block is fixedly installed on the top of the electric telescopic rod, and the clamping block and the gear ring are mutually clamped and adapted.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the motor can drive the rotating shaft to rotate when it is started, the rotating shaft can drive the gear to rotate, the gear can drive the gear ring to rotate, the gear ring can drive the rotating ring to rotate, the rotating ring can drive the support platform inside it to rotate, and the support platform can drive the box beam on its top to directly flip, thereby improving the efficiency of the box beam flipping and improving the safety of the box beam flipping. The first hydraulic rod can drive the frame to move when it is started, and the frame can drive the roller to move through the through groove to the outside of the shell, thereby facilitating the box beam to move on the support platform, and then facilitating the loading and unloading operations of the box beam. The electric telescopic rod can drive the clamping block and the gear ring to engage with each other, thereby limiting the gear ring, thereby limiting the box beam inside the rotating ring, and then facilitating the staff to fix the box beam at a suitable welding angle, greatly improving the quality of the box beam welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the shell of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the gear ring and the rotating sleeve of the utility model.

[0016] In the figure: 1. base; 2. box; 3. motor; 4. rotating shaft; 5. gear; 6. gear ring; 7. rotating ring; 8. support platform; 9. first hydraulic rod; 10. frame; 11. roller; 12. rotating sleeve; 13. second hydraulic rod; 14. L-shaped fixing plate; 15. damping shock absorber; 16. slider; 18. slide groove; 19. anti-slip pad; 20. electric telescopic rod; 21. block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example 1, please refer to Figures 1 to 4 The utility model provides a technical solution: a crane box beam flipping device, comprising a base 1, a box body 2 is fixedly installed on both sides of the top of the base 1, through holes are opened on the left and right sides of the box body 2, a motor 3 is fixedly installed on the right side of the right box body 2 and near its bottom, a rotating shaft 4 is fixedly installed on the output end of the motor 3, the other end of the rotating shaft 4 is rotatably connected to the inner wall of the box body 2 through a bearing, a gear 5 is fixedly installed outside the rotating shaft 4 and located inside the box body 2, a gear ring 6 is movably meshed on the top of the gear 5, a rotating ring 7 is fixedly installed on the inner side of the gear ring 6, a support platform 8 is provided inside the rotating ring 7, a through groove is opened on the top of the support platform 8, a first hydraulic rod 9 is fixedly installed in the middle of the bottom of the inner wall of the support platform 8, a frame 10 is fixedly installed on the top of the first hydraulic rod 9, and a roller 11 is rotatably connected to the inner side of the frame 10 through a bearing.

[0019] Furthermore, a rotating groove is provided on the outside of the rotating ring 7 and near its right side, and a rotating sleeve 12 is rotatably connected to the inner side of the rotating groove, and the rotating sleeve 12 is fixedly connected to the inner wall of the box body 2 through a connecting rod. Through the setting of the rotating groove and the rotating sleeve 12, the rotating ring 7 can rotate stably.

[0020] Furthermore, a second hydraulic rod 13 is fixedly installed on the front and rear sides of the inner wall of the rotating ring 7, and an L-shaped fixing plate 14 is fixedly installed on the other end of the second hydraulic rod 13. The second hydraulic rod 13 can drive the L-shaped plate to clamp and fix the box beam, thereby facilitating the subsequent flipping of the box beam.

[0021] Furthermore, a damping shock absorber 15 is fixedly installed at the bottom of the support platform 8, and the bottom of the damping shock absorber 15 is fixedly connected to the bottom of the inner wall of the rotating ring 7. The damping shock absorber 15 can play a buffering and protective role for the box beam on the top of the support platform 8.

[0022] Example 2, please refer to Figures 1 to 4 The difference between this embodiment and embodiment 1 is that: sliders 16 are fixedly installed on the front and rear sides of the frame 10, and slide grooves 18 are fixedly installed on the front and rear sides of the inner wall of the support platform 8. The sliders 16 are slidably connected and adapted to the slide grooves 18. The frame 10 can be stably lifted and lowered under the sliding action of the sliders 16 and the slide grooves 18. An anti-skid pad 19 is fixedly installed on the top of the support platform 8. The anti-skid pad 19 is made of rubber. The anti-skid pad 19 can increase the friction between the support platform 8 and the box beam, thereby further improving the stability of the box beam when it is flipped. Electric telescopic rods 20 are fixedly installed on the front and rear sides of the bottom of the inner wall of the box body 2. A clamping block 21 is fixedly installed on the top of the electric telescopic rod 20. The clamping block 21 is mutually engaged and adapted to the gear ring 6. The activation of the second hydraulic rod 13 can drive the clamping block 21 to engage with the gear ring 6, thereby limiting the gear ring 6.

[0023] Working principle: When the box girder flipping device of a crane is in use, the staff can place the box girder on the top of the support platform 8 through the through hole, and at the same time the staff can start the second hydraulic rod 13, the second hydraulic rod 13 can drive the L-shaped plate to clamp and fix the box girder, when the box girder needs to be flipped, the staff can start the motor 3, the motor 3 can drive the rotating shaft 4 to rotate, the rotating shaft 4 can drive the gear 5 to rotate, the gear 5 can drive the gear ring 6 to rotate, the gear ring 6 can drive the rotating ring 7 to rotate, the rotating ring 7 can drive the support platform 8 inside it to rotate, the support platform 8 can drive the box girder on its top to flip directly, thereby improving the efficiency of the box girder flipping, and It can also improve the safety of box girder flipping, and when the box girder needs to be loaded and unloaded, the staff can start the first hydraulic rod 9, the first hydraulic rod 9 can drive the frame 10 to move, the frame 10 can drive the roller 11 to pass through the through groove to move to the outside of the shell, so as to facilitate the movement of the box girder on the support platform 8, and then facilitate the loading and unloading operations of the box girder. When the box girder is welded, the staff can start the electric telescopic rod 20, the electric telescopic rod 20 can drive the clamping block 21 to engage with the gear ring 6, thereby limiting the gear ring 6, thereby limiting the box girder on the inner side of the rotating ring 7, and then facilitating the staff to fix the box girder at a suitable welding angle, greatly improving the quality of the box girder welding.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane box girder tilting device, comprising a base (1), characterized in that: A box body (2) is fixedly mounted on both sides of the top of the base (1), through holes are provided on the left and right sides of the box body (2), a motor (3) is fixedly mounted on the right side of the box body (2) and close to the bottom thereof, a rotating shaft (4) is fixedly mounted on the output end of the motor (3), the other end of the rotating shaft (4) is rotatably connected to the inner wall of the box body (2) through a bearing, a gear (5) is fixedly mounted outside the rotating shaft (4) and inside the box body (2), a gear ring (6) is movably meshed at the top of the gear (5), a rotating ring (7) is fixedly mounted on the inner side of the gear ring (6), a support platform (8) is provided inside the rotating ring (7), a through groove is provided on the top of the support platform (8), a first hydraulic rod (9) is fixedly mounted in the middle of the bottom of the inner wall of the support platform (8), a frame body (10) is fixedly mounted on the top of the first hydraulic rod (9), and a roller (11) is rotatably connected to the inner side of the frame body (10) through a bearing.

2. A crane box girder turning device according to claim 1, characterized in that: A rotating groove is provided on the outside of the rotating ring (7) and close to the right side thereof, and a rotating sleeve (12) is rotatably connected to the inside of the rotating groove, and the rotating sleeve (12) is fixedly connected to the inner wall of the box body (2) via a connecting rod.

3. The crane box girder turning device according to claim 1, characterized in that: A second hydraulic rod (13) is fixedly mounted on both front and rear sides of the inner wall of the rotating ring (7), and an L-shaped fixing plate (14) is fixedly mounted on the other end of the second hydraulic rod (13).

4. The crane box girder turning device according to claim 1, characterized in that: A damping shock absorber (15) is fixedly mounted on the bottom of the support platform (8), and the bottom of the damping shock absorber (15) is fixedly connected to the bottom of the inner wall of the rotating ring (7).

5. The crane box girder turning device according to claim 1, characterized in that: Slide blocks (16) are fixedly mounted on the front and rear sides of the frame (10), and slide grooves (18) are fixedly mounted on the front and rear sides of the inner wall of the support platform (8), and the slide blocks (16) are slidably connected and adapted to the slide grooves (18).

6. The crane box beam turning device according to claim 1, characterized in that: An anti-skid pad (19) is fixedly mounted on the top of the support platform (8), and the anti-skid pad (19) is made of rubber.

7. The crane box girder turning device according to claim 1, characterized in that: An electric telescopic rod (20) is fixedly mounted on the front and rear sides of the bottom of the inner wall of the box body (2), and a clamping block (21) is fixedly mounted on the top of the electric telescopic rod (20), and the clamping block (21) and the gear ring (6) are mutually clamped and adapted.

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