Crane for circular orbit

Abstract

The utility model discloses a crane for a circular track, which comprises two end beams, two main beams arranged between the two end beams, a track arranged on the two main beams, a crane carriage arranged on the track, and the crane carriage moving along the track; mounting frames are fixedly connected to the bottoms of the two ends of each end beam respectively, walking wheels are rotationally connected to the mounting frames, a driving motor is mounted on one mounting frame, the intersection point of the axes of rotating shafts of the two walking wheels arranged in a diagonal mode is the circle center of the circle center rail, and the rotating direction of the walking wheels is the same as the tangential direction of the circular rail; according to the utility model, a double-girder structure is adopted, and the hoisting trolley is arranged on the girders, so that the hoisting capacity of the crane is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting machinery, in particular to a circular track crane. Background Art

[0002] Bridge cranes are typically used for lifting operations in large factories. These cranes offer a wide operating range and lifting capacity within the factory. However, in some workspaces with limited space and high lifting frequency, conventional bridge cranes are not suitable. Therefore, a type of crane that utilizes a circular track has emerged. Its operating range is limited to the area within the circular track, offering flexible operation and agile movements. However, existing cranes for circular tracks all utilize suspended electric hoists, resulting in limited lifting capacity. Utility Model Content

[0003] The utility model aims to provide a circular track crane, which adopts a double-main-beam structure and is provided with a lifting trolley on the main beam, thereby greatly improving the lifting capacity of the crane.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a circular track crane, comprising two end beams, two main beams installed between the two end beams, tracks provided on the two main beams, a lifting trolley provided on the tracks, and the lifting trolley moves along the tracks; the bottom of each end beam is fixedly connected to a mounting frame, the mounting frame is rotatably connected to a running wheel, one of the mounting frames is equipped with a drive motor, the intersection of the axis of the rotating shafts of the two running wheels arranged diagonally is the center of the circular track, and the rotation direction of the running wheel is the same as the tangent direction of the circular track.

[0005] Optionally, a mounting plate is provided between the end beam and the mounting frame, four fixing holes are provided on the top of the mounting frame, angle adjustment holes matching the fixing holes are provided on the mounting plate, and the mounting frame is locked and fixed to the mounting plate by bolts and nuts.

[0006] Optionally, a connecting hole is provided on the mounting plate, and a strip-shaped width adjustment hole matching the connecting hole is provided at the bottom of the end beam. The mounting plate is locked and fixed to the end beam by bolts and nuts.

[0007] Optionally, each end beam has a mounting frame on which a drive motor is mounted. The corresponding running wheel is called a driving wheel, and the other running wheel is called a driven wheel. The two driving wheels are arranged diagonally, and the two driven wheels are arranged diagonally.

[0008] The circular track crane of the utility model has the following advantages:

[0009] (1) The driving motor can drive the end beam to move along the circular track, thereby realizing the rotation of the main beam and adjusting the lifting route. The lifting trolley is then used to drive the spreader to move, completing the linear transportation of objects and improving work efficiency.

[0010] (2) The angle adjustment holes on the mounting plate can fine-tune the installation angle of the travel wheels so that they better coincide with the tangent direction of the circular track. The width adjustment holes on the mounting plate can fine-tune the spacing between the travel wheels so that they better match the circular track, avoiding errors in the production, assembly, and matching processes, which may cause the end beam to be unable to move along the circular track and the lifting equipment to be unable to operate normally.

[0011] (3) The driving wheels arranged diagonally can provide more balanced power to the end beam, avoiding the crane from getting stuck or tipping due to uneven power, and improving the stability of the crane operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0014] Figure 3 It is a top view of the present utility model.

[0015] Figure 4 It is a schematic diagram of the coordination between the fixing hole and the angle adjustment hole.

[0016] Figure 5 It is a schematic diagram of the coordination between the connecting hole and the width adjustment hole. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-Figure 5As shown, a circular track crane comprises two end beams 1, two main beams 2 are mounted between the two end beams 1, tracks 3 are provided on the two main beams 2, and a hoisting trolley 4 is provided on the tracks 3, and the hoisting trolley 4 moves along the tracks 3. The bottom of each end beam 1 is fixedly connected to a mounting frame 6 through a mounting plate 5, and a running wheel 7 is rotatably connected to the mounting frame 6. A driving motor 8 is installed on one mounting frame 6, and the corresponding running wheel 7 is called a driving wheel, and the running wheel 7 on the other mounting frame 6 is called a driven wheel. The two driving wheels are arranged diagonally, and the two driven wheels are arranged diagonally. The intersection of the rotating shaft axes of the two diagonally arranged running wheels 7 is the center of the circular track 3. The rotation direction of the running wheel 7 is the same as the tangent direction of the circular track 13. The driving motor 8 can drive the end beam 1 to move along the circular track 13, and the end beam 1 can drive the main beam 2 to rotate, thereby adjusting the lifting route. The driving wheels arranged diagonally can provide more balanced power to the end beam 1, thereby preventing the crane from getting stuck or tipping over due to uneven power, and improving the stability of the crane operation.

[0019] Four fixing holes 9 are provided on the top of the mounting frame 6, and angle adjustment holes 10 matching the fixing holes 9 are provided on the mounting plate 5. The mounting frame 6 is locked and fixed to the mounting plate 5 by bolts and nuts. By adjusting the matching positions of the fixing holes 9 and the angle adjustment holes 10, the installation angle of the traveling wheel 7 can be fine-tuned so that the traveling wheel 7 is better aligned with the tangent direction of the circular track 13, thereby ensuring the smooth movement of the end beam 1 and avoiding jamming that affects the normal operation of the crane.

[0020] The mounting plate 5 is provided with a connection hole 11, and the bottom of the end beam 1 is provided with a strip-shaped width adjustment hole 12 that matches the connection hole 11. The opening direction of the width adjustment hole 12 is the same as the setting direction of the end beam 1. The mounting plate 5 is locked and fixed to the end beam 1 with bolts and nuts. Because the circular track 13 is relatively special, in order to ensure the normal operation of the crane, the four running wheels 7 must be precisely matched with the circular track 13. However, during the production and assembly processes, errors are inevitable, which may cause the running wheels 7 to not properly land on the circular track 13. In this case, the width between the running wheels 7 can be fine-tuned by adjusting the matching position of the connection hole 11 and the width adjustment hole 12 so that the running wheels 7 can adapt to the circular track 13.

[0021] By cooperating with the width adjustment hole 12 and the connection hole 11, the width between the running wheels 7 can be adjusted so that the running wheels 7 can match the circular track 13 more accurately, and the crane will not be unusable due to assembly errors. By cooperating with the angle adjustment hole 10 and the fixing hole 9, the installation angle of the running wheels 7 can be adjusted so that the running wheels 7 can better coincide with the tangent direction of the circular track 13, so that the crane can operate smoothly. The range covered by the circular track 13 is the operating range of the crane. The end beam 1 is driven by the drive motor 8 to move along the circular track 13, and the end beam 1 drives the main beam 2 to rotate so that the direction of the main beam 2 is the same as the shortest route for lifting. In this way, the lifting trolley 4 can carry objects along a straight line, thereby improving the lifting capacity and lifting efficiency of the crane.

[0022] The embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A circular track crane, characterized in that: It includes two end beams, two main beams are installed between the two end beams, tracks are provided on the two main beams, and a lifting trolley is provided on the track, and the lifting trolley moves along the track; the bottom of each end beam is fixedly connected to a mounting frame, and the mounting frame is rotatably connected to a running wheel, and a driving motor is installed on one of the mounting frames. The intersection of the axis of the rotating shafts of the two running wheels arranged diagonally is the center of the circular track, and the rotation direction of the running wheel is the same as the tangent direction of the circular track.

2. The circular track crane according to claim 1, wherein: A mounting plate is provided between the end beam and the mounting frame. Four fixing holes are provided on the top of the mounting frame. Angle adjustment holes matching the fixing holes are provided on the mounting plate. The mounting frame is locked and fixed to the mounting plate by bolts and nuts.

3. The circular track crane according to claim 2, wherein: A connecting hole is opened on the mounting plate, and a strip-shaped width adjustment hole matching the connecting hole is opened on the bottom of the end beam. The mounting plate is locked and fixed to the end beam by bolts and nuts.

4. The circular track crane according to claim 1, wherein: Each end beam has a mounting frame on which a drive motor is mounted. The corresponding travel wheel is called a driving wheel, and the other travel wheel is called a driven wheel. The two driving wheels are arranged diagonally, and the two driven wheels are arranged diagonally.

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