Overturning mechanism for main beam of crane

Abstract

The utility model belongs to the field of cranes, particularly relates to a crane main beam turnover mechanism, and aims to solve the problem that crane main beams on the two sides need to be rotated respectively in the prior art, so that the crane main beam turnover mechanism is easy to desynchronize. The number of the supporting seats is four, and the four supporting seats are connected to the top of the base through bolts; the four crane main beam overturning assemblies comprise supporting barrels, six electric push cylinders and six clamping plates, the surfaces of the supporting barrels are rotationally connected with the interiors of the supporting seats in a sleeving mode, the power mechanism can synchronously drive the four supporting barrels to rotate through transmission of the structure, and the four supporting barrels can synchronously rotate through transmission of the structure; the four supporting cylinders are arranged on the two sides of the surface of the crane main beam in a sleeving mode correspondingly, so that the supporting cylinders can drive the left part and the right part of the crane main beam to stably and synchronously rotate, the difference of the rotating speeds of the supporting cylinders is avoided, and the situation that welding parts are torn due to the different rotating speeds can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to a crane main beam tilting mechanism. Background Technology

[0002] In the process of manufacturing the main beam of a crane, in order to ensure the quality of the weld, the main beam of the crane needs to be flipped multiple times so that the position to be welded is in the flat welding position. A crane main beam flipping mechanism is required. Chinese patent document with publication number CN118479357A discloses a crane large main beam flipping mechanism.

[0003] However, the above technical solution requires rotating the main beams of the crane on both sides separately before welding can be carried out. Such transmission can easily lead to the two main beams of the crane being out of sync, affecting the stability of the welding of the main beams of the crane. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing technologies require rotating the main beams of cranes on both sides separately, which can easily lead to asynchronous operation. Therefore, this invention proposes a crane main beam tilting mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A crane main beam tilting mechanism, including

[0007] Base;

[0008] The support base has four supports, which are bolted to the top of the base.

[0009] The crane main beam tilting assembly has four components, including a support cylinder, an electric push cylinder, and a clamping plate. The surface of the support cylinder is rotatably connected to the inside of the support seat. There are six electric push cylinders and six clamping plates. The surfaces of the six electric push cylinders are bolted to the six holes of the support cylinder, and the output end of the electric push cylinder is bolted to the surface of the clamping plate.

[0010] The flipping assembly has four components, including a large rotating wheel, a transmission belt, a small rotating wheel, a transmission gear, and a gear ring. The inside of the large rotating wheel is connected to the inside of the transmission belt, the top of the inside of the transmission belt is connected to the inside of the small rotating wheel, the shaft of the small rotating wheel is connected to the left side of the transmission gear, and the gear ring is opened on the surface of the support cylinder. The teeth of the transmission gear mesh with the teeth of the gear ring.

[0011] The power mechanism is connected to four large rotating wheels. Through the transmission of the structure, the power mechanism can synchronously drive the four support cylinders to rotate. The four support cylinders are respectively fitted on both sides of the surface of the crane main beam. In this way, the support cylinders can drive the left and right parts of the crane main beam to rotate stably and synchronously, avoiding differences in the rotation speed of the support cylinders and preventing the welded parts from tearing due to different rotation speeds.

[0012] In a preferred embodiment of this utility model, the power mechanism includes an electric cylinder, a slide bar, a hinge rod, and a transmission assembly. The output end of the electric cylinder is bolted to the top end of the slide bar, the bottom end of the slide bar is hinged to the top end of the hinge rod, the hinge rod is hinged to the transmission assembly, the power supply to the electric cylinder is turned on, the electric cylinder is controlled by a controller, the electric cylinder can drive the slide bar to move upward, the slide bar can drive the hinge rod to move upward, and the hinge rod can drive the transmission assembly to rotate.

[0013] In a preferred embodiment of this utility model, the transmission assembly includes a transmission frame and a rotating shaft. The bottom end of the hinge rod is hinged to a hole in the transmission frame. The end of the transmission frame away from the hinge rod is keyed to the right end of the rotating shaft. The axles of the four large rotating wheels are keyed to the surface of the rotating shaft. The hinge rod can drive the transmission frame to rotate upward, the transmission frame can drive the rotating shaft to rotate, and the rotating shaft can drive the four large rotating wheels to rotate.

[0014] In a preferred embodiment of this utility model, the surface of the electric cylinder is bolted to the support seat on the right side, the surface of the slide bar is slidably connected to the support seat on the right side, the rotating shaft is rotatably sleeved with the four support seats, the electric cylinder is fixed by the support seats, ensuring that the electric cylinder can smoothly drive the slide bar to move, the slide bar is slidably set with the support seats through the slide rail to guide the slide bar, and the rotating shaft is rotatably set with the support seats through the bearing.

[0015] As a preferred embodiment of this utility model, a collection frame is placed at the middle of the top of the base. The collection frame is located at the bottom of the rotating shaft. The collection frame can collect the debris that falls during the welding process, making it convenient to clean up the debris later.

[0016] In a preferred embodiment of this utility model, the shaft of the large rotating wheel is rotatably connected to the left side of the support base, and the shaft of the transmission gear is rotatably connected to the left side of the support base. The large rotating wheel is rotatably connected to the support base via bearings to ensure the smooth rotation of the large rotating wheel, and the transmission gear is rotatably connected to the support base via bearings to ensure the smooth rotation of the transmission gear.

[0017] Beneficial effects:

[0018] 1. The power mechanism can drive four large rotating wheels to rotate, the large rotating wheels can drive the transmission belt to rotate, the transmission belt can drive the small rotating wheel to rotate, the small rotating wheel can drive the transmission gear to rotate, the transmission gear can drive the gear ring to rotate, and the four gear rings can drive the four support cylinders to rotate synchronously.

[0019] 2. The electric cylinder can drive the slide bar to move, the slide bar can drive the hinge rod to move, the hinge rod can drive the transmission frame to rotate, the transmission frame can drive the rotating shaft to rotate, and the rotating shaft can drive the four large rotating wheels to rotate, which facilitates the synchronous transmission of the structure.

[0020] In this invention, the power mechanism can synchronously drive the four support cylinders to rotate through the transmission of the structure. The four support cylinders are respectively sleeved on both sides of the surface of the crane main beam. In this way, the support cylinders can drive the two parts of the crane main beam to rotate stably and synchronously, avoiding differences in the rotation speed of the support cylinders and preventing the welded parts from tearing due to different rotation speeds. Attached Figure Description

[0021] Figure 1 This is a perspective view of the entire utility model;

[0022] Figure 2 This is a perspective view of the power mechanism of this utility model;

[0023] Figure 3 This is a perspective view of the support cylinder of this utility model;

[0024] Figure 4 This is a perspective view of the support base of this utility model.

[0025] In the diagram: 1. Base; 2. Support seat; 3. Support cylinder; 4. Electric pusher cylinder; 5. Clamping plate; 6. Electric cylinder; 7. Slide bar; 8. Hinge rod; 9. Transmission frame; 10. Rotating shaft; 11. Large rotating wheel; 12. Transmission belt; 13. Small rotating wheel; 14. Transmission gear; 15. Gear ring; 16. Collection frame. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Reference Figures 1-4 A crane main beam tilting mechanism, comprising

[0029] Base 1;

[0030] Support base 2, four support bases 2 are provided, and the four support bases 2 are bolted to the top of the base 1;

[0031] The crane main beam tilting assembly has four components, including a support cylinder 3, an electric push cylinder 4, and a clamping plate 5. The surface of the support cylinder 3 is rotatably connected to the inside of the support base 2. There are six electric push cylinders 4 and six clamping plates 5. The surfaces of the six electric push cylinders 4 are bolted to the six holes of the support cylinder 3, and the output end of the electric push cylinder 4 is bolted to the surface of the clamping plate 5.

[0032] The flipping assembly has four components, including a large rotating wheel 11, a transmission belt 12, a small rotating wheel 13, a transmission gear 14, and a gear ring 15. The inside of the large rotating wheel 11 is connected to the inside of the transmission belt 12, the top of the inside of the transmission belt 12 is connected to the inside of the small rotating wheel 13, the shaft of the small rotating wheel 13 is connected to the left side of the transmission gear 14, and the gear ring 15 is formed on the surface of the support cylinder 3. The teeth of the transmission gear 14 mesh with the teeth of the gear ring 15.

[0033] The power mechanism is connected to four large rotating wheels 11.

[0034] With the above structure, the power mechanism can drive the four support cylinders 3 to rotate synchronously through the transmission of the structure. The four support cylinders 3 are respectively sleeved on both sides of the surface of the crane main beam. In this way, the support cylinders 3 can drive the left and right parts of the crane main beam to rotate stably and synchronously, avoiding the difference in rotation speed of the support cylinders 3, and avoiding the tearing of the welded parts due to the difference in rotation speed.

[0035] Please see Figure 2 The power mechanism includes an electric cylinder 6, a slide bar 7, a hinge rod 8, and a transmission assembly. The output end of the electric cylinder 6 is bolted to the top end of the slide bar 7, the bottom end of the slide bar 7 is hinged to the top end of the hinge rod 8, and the hinge rod 8 is hinged to the transmission assembly. When the power supply to the electric cylinder 6 is turned on, the electric cylinder 6 is controlled by a controller. The electric cylinder 6 can drive the slide bar 7 to move upward, the slide bar 7 can drive the hinge rod 8 to move upward, and the hinge rod 8 can drive the transmission assembly to rotate.

[0036] Please see Figure 2 The transmission assembly includes a transmission frame 9 and a rotating shaft 10. The bottom end of the hinge rod 8 is hinged to the hole of the transmission frame 9. The end of the transmission frame 9 away from the hinge rod 8 is keyed to the right end of the rotating shaft 10. The axis of each of the four large rotating wheels 11 is keyed to the surface of the rotating shaft 10. The hinge rod 8 can drive the transmission frame 9 to rotate upward, the transmission frame 9 can drive the rotating shaft 10 to rotate, and the rotating shaft 10 can drive the four large rotating wheels 11 to rotate.

[0037] Please see Figure 1The surface of the electric cylinder 6 is bolted to the support seat 2 on the right side, and the surface of the slide bar 7 is slidably connected to the support seat 2 on the right side. The rotating shaft 10 is rotatably sleeved with the four support seats 2. The electric cylinder 6 is fixed by the support seats 2 to ensure that the electric cylinder 6 can smoothly drive the slide bar 7 to move. The slide bar 7 is slidably set with the support seat 2 through the slide rail to guide the slide bar 7. The rotating shaft 10 is rotatably set with the support seat 2 through the bearing.

[0038] Please see Figure 1 A collection frame 16 is placed at the middle of the top of the base 1. The collection frame 16 is located at the bottom of the rotating shaft 10. The collection frame 16 can collect the debris that falls during the welding process, making it convenient to clean up the debris later.

[0039] Please see Figure 4 The large rotating wheel 11 is rotatably connected to the left side of the support base 2 at its axis, and the transmission gear 14 is rotatably connected to the left side of the support base 2 at its axis. The large rotating wheel 11 is rotatably connected to the support base 2 through bearings to ensure the smooth rotation of the large rotating wheel 11. The transmission gear 14 is rotatably connected to the support base 2 through bearings to ensure the smooth rotation of the transmission gear 14.

[0040] Example 2

[0041] The difference between this embodiment and Embodiment 1 is that the electric cylinder 6, slide bar 7, hinge rod 8, and transmission frame 9 are replaced with a power motor, a worm gear with a worm wheel surface meshing with the output end of the power motor, and the worm wheel is connected to the rotating shaft 10. The worm wheel can drive the rotating shaft 10 to rotate. However, to drive the rotating shaft 10 to rotate, a large resistance is required. The power motor has a large pressure. Therefore, this application preferably uses the electric cylinder 6, slide bar 7, hinge rod 8, and transmission frame 9.

[0042] It should be noted that the specific models of electric push cylinder 4 and electric cylinder 6 used should be selected by those skilled in the art, and the electric push cylinder 4 and electric cylinder 6 mentioned above are all existing technologies, which will not be elaborated on in this solution.

[0043] The working principle of this utility model is as follows: Two crane main beams to be welded are inserted into the support cylinders 3 on both sides of the top of the base 1. Each crane main beam is supported by two support cylinders 3. The power supply of the electric push cylinder 4 is turned on, and the electric push cylinder 4 can drive the clamping plate 5 to clamp and fix the crane main beam, fixing the crane main beam inside the support cylinder 3. After the connection between the two crane main beams is welded on one side, the power supply of the electric cylinder 6 is turned on. The electric cylinder 6 is controlled by a controller. The electric cylinder 6 can drive the slide bar 7 to move upward, the slide bar 7 can drive the hinge rod 8 to move upward, the hinge rod 8 can drive the transmission frame 9 to rotate upward, and the transmission frame 9 can... The rotating shaft 10 drives the four large rotating wheels 11 to rotate, which in turn drives the transmission belt 12 to rotate. The transmission belt 12 drives the small rotating wheel 13 to rotate. The size of the large rotating wheels 11 and the small rotating wheel 13 can accelerate the small rotating wheel 13. The small rotating wheel 13 can drive the transmission gear 14 to rotate, which in turn drives the gear ring 15 to rotate. The four gear rings 15 can drive the four support cylinders 3 to rotate synchronously. The four support cylinders 3 can drive the two parts of the crane main beam to rotate stably and synchronously, avoiding differences in the rotation of the support cylinders 3, and ensuring the welding quality and stability of the crane main beam.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crane main beam tilting mechanism, characterized in that, include Base (1); Support base (2), four support bases (2) are provided, and the four support bases (2) are bolted to the top of the base (1); The crane main beam tilting assembly has four components. The crane main beam tilting assembly includes a support cylinder (3), an electric push cylinder (4), and a clamping plate (5). The surface of the support cylinder (3) is rotated and sleeved with the inside of the support seat (2). The electric push cylinder (4) and the clamping plate (5) each have six components. The surfaces of the six electric push cylinders (4) are bolted to the six holes of the support cylinder (3), and the output end of the electric push cylinder (4) is bolted to the surface of the clamping plate (5). The flipping assembly has four components, including a large rotating wheel (11), a transmission belt (12), a small rotating wheel (13), a transmission gear (14), and a gear ring (15). The interior of the large rotating wheel (11) is connected to the inner side of the transmission belt (12), the top of the interior of the transmission belt (12) is connected to the inner side of the small rotating wheel (13), the shaft of the small rotating wheel (13) is connected to the left side of the transmission gear (14), and the gear ring (15) is opened on the surface of the support cylinder (3). The teeth of the transmission gear (14) mesh with the teeth of the gear ring (15). The power mechanism is connected to four large rotating wheels (11).

2. The crane main beam tilting mechanism according to claim 1, characterized in that, The power mechanism includes an electric cylinder (6), a slide bar (7), a hinge rod (8), and a transmission assembly. The output end of the electric cylinder (6) is bolted to the top end of the slide bar (7), the bottom end of the slide bar (7) is hinged to the top end of the hinge rod (8), and the hinge rod (8) is hinged to the transmission assembly.

3. The crane main beam tilting mechanism according to claim 2, characterized in that, The transmission assembly includes a transmission frame (9) and a rotating shaft (10). The bottom end of the hinge rod (8) is hinged to the hole of the transmission frame (9). The end of the transmission frame (9) away from the hinge rod (8) is keyed to the right end of the rotating shaft (10). The center of the four large rotating wheels (11) is keyed to the surface of the rotating shaft (10).

4. A crane main beam tilting mechanism according to claim 2, characterized in that, The surface of the electric cylinder (6) is bolted to the support seat (2) on the right side, the surface of the slide bar (7) is slidably connected to the support seat (2) on the right side, and the rotating shaft (10) is rotatably sleeved with the four support seats (2).

5. A crane main beam tilting mechanism according to claim 3, characterized in that, A collection frame (16) is placed at the middle of the top of the base (1), and the collection frame (16) is located at the bottom of the rotating shaft (10).

6. A crane main beam tilting mechanism according to claim 1, characterized in that, The axis of the large rotating wheel (11) is rotatably connected to the left side of the support base (2), and the axis of the transmission gear (14) is rotatably connected to the left side of the support base (2).

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