Crane convenient to move

Abstract

The utility model discloses a crane convenient to move, and relates to the technical field of cranes. The trolley comprises supporting legs, a movable bottom plate is fixedly connected to the bottoms of the supporting legs, a girder is fixedly connected to the tops of the supporting legs, a trolley running assembly is arranged at the top of the girder, a hook is arranged at the bottom of the trolley running assembly, and the trolley running assembly comprises a running box arranged on one side of the girder. And the movable toothed plate is fixedly connected to the top of the girder. The safety and the stability of the crane are remarkably improved through the mechanical and electromagnetic double-locking design. The first hydraulic cylinder pushes the locking toothed plate to be meshed with the movable toothed plate to form rigid mechanical locking; meanwhile, after being electrified, the electromagnetic plate generates magnetic attraction force with the supporting wheel made of the magnetic conductive material and the speed reducing plate, and electromagnetic locking is formed. The double locking mechanism effectively avoids the problem of slippage of traditional pure mechanical friction locking under load vibration or gust interference.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, and in particular relates to a crane that is easy to move. Background Technology

[0002] A crane is a piece of engineering machinery used for vertically lifting and horizontally moving heavy objects. Its core function is to achieve precise positioning and transfer of loads through mechanisms such as hooks and wire ropes. Easily movable cranes are usually equipped with adjustable outriggers and mobile chassis to adapt to the flexible operation needs of complex sites such as shipyards and construction sites, and must have both high mobility and operational stability.

[0003] The trolley traveling mechanism of traditional mobile cranes has the following defects: existing locking mechanisms mostly use pure mechanical friction fixation, which is prone to slippage under load vibration or gusts of wind, posing a safety hazard. Moreover, mechanical friction fixation makes it difficult to align the lifting equipment. Therefore, we provide a crane that is easy to move to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a crane that is easy to move. By cooperating with the trolley running component and the locking component, it solves the problem in the existing crane technology where the locking mechanism mostly adopts pure mechanical friction fixation, which is prone to slippage under load vibration or gust of wind, posing a safety hazard.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to a mobile crane, comprising outriggers, a movable base plate fixedly connected to the bottom of the outriggers, a main beam fixedly connected to the top of the outriggers, a trolley running assembly on the top of the main beam, a hook at the bottom of the trolley running assembly, the trolley running assembly including a running box on one side of the main beam, a movable toothed plate fixedly connected to the top of the main beam, a drive gear meshing with the top of the movable toothed plate, and a support wheel movably connected to one side of the running box via a bearing, and a locking assembly on one side of the running box, the locking assembly including a locking toothed plate on one side of the running box, a speed reduction plate on one side of the running box, and an electromagnetic plate fixedly connected to one side of the speed reduction plate.

[0007] The present invention is further configured such that there are two legs and two main beams, and the two legs are fixedly connected by a connecting beam.

[0008] The present invention is further configured such that a movable groove adapted to the support wheel is provided on the top of the main beam, and the main beam, the support wheel and the speed reducer are all made of magnetic material.

[0009] The present invention is further configured such that an inlet / outlet slot adapted to the locking tooth plate is provided inside the running box, and a first hydraulic cylinder is fixedly connected inside the inlet / outlet slot, and the output end of the first hydraulic cylinder is fixedly connected to the locking tooth plate.

[0010] The present invention is further configured such that an extension plate is fixedly connected to the side of the locking tooth plate near the running box, and there are two extension plates, with a second hydraulic cylinder fixedly connected between the two extension plates.

[0011] The present invention is further configured such that the second hydraulic cylinder is a double-headed hydraulic cylinder, and a connecting plate is fixedly connected to the output end of the second hydraulic cylinder.

[0012] The present invention is further configured such that the electromagnetic plate has a deceleration groove adapted to the support wheel on the side near the support wheel, and a drive motor is fixedly connected inside the running box, and the output shaft of the drive motor is fixedly connected to the drive gear.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model significantly improves the safety and stability of the crane through a dual locking design combining mechanical and electromagnetic mechanisms. A first hydraulic cylinder pushes the locking toothed plate to engage with the moving toothed plate, forming a rigid mechanical lock. Simultaneously, when the electromagnetic plate is energized, it generates magnetic attraction with the magnetically conductive support wheel and reduction gear, forming an electromagnetic lock. This dual locking mechanism effectively avoids the slippage problem of traditional purely mechanical friction locking under load vibration or gusts of wind.

[0015] 2. This utility model achieves smooth linear movement of the trolley by employing a design where a drive gear meshes with a moving toothed plate, combined with the rolling support of support wheels within the moving slide groove. The support wheels distribute the weight of the trolley, reducing wear on the drive gear and moving toothed plate, and extending the equipment's lifespan. Simultaneously, the drive motor, through gear transmission, ensures precise hook positioning, solving the positioning difficulties of traditional cranes and improving operational efficiency and precision.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A perspective view of a crane that is easy to move.

[0019] Figure 2 This is a perspective view of the trolley running components of a crane that is easy to move.

[0020] Figure 3 A perspective view of a locking assembly in a mobile crane.

[0021] Figure 4 This is a perspective view of a locking tooth plate in a mobile crane.

[0022] Figure 5 This is a perspective view of a speed reducer and electromagnetic plate in a mobile crane.

[0023] In the attached diagram: 1. Outrigger; 2. Movable base plate; 3. Main beam; 4. Hook; 5. Running box; 6. Movable gear plate; 7. Drive gear; 8. Support wheel; 9. Locking gear plate; 10. Speed ​​reducer; 11. Electromagnetic plate; 12. Movable slide; 13. Inlet / outlet through slot; 14. First hydraulic cylinder; 15. Extension plate; 16. Second hydraulic cylinder; 17. Connecting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figures 1-5 This utility model relates to a mobile crane, comprising outriggers 1, a movable base plate 2 fixedly connected to the bottom of outriggers 1, a main beam 3 fixedly connected to the top of outriggers 1, a trolley running assembly mounted on the top of the main beam 3, and a hook 4 mounted on the bottom of the trolley running assembly. The trolley running assembly includes a running box 5 mounted on one side of the main beam 3, a movable toothed plate 6 fixedly connected to the top of the main beam 3, a drive gear 7 meshing with the top of the movable toothed plate 6, and a support wheel 8 movably connected to one side of the running box 5 via a bearing. Through the trolley running assembly, the drive motor drives the drive gear 7 to roll along the movable toothed plate 6 fixed to the top of the main beam 3, achieving linear movement of the running box 5 and ensuring the hook accurately reaches the target position. The support wheel 8 provides support for the weight of the trolley running assembly. To provide support and reduce the wear rate between the drive gear 7 and the moving gear plate 6, a locking assembly is provided on one side of the running box 5. The locking assembly includes a locking gear plate 9, a reduction plate 10, and an electromagnetic plate 11 fixedly connected to one side of the reduction plate 10. Through the setting of the locking assembly, the first hydraulic cylinder 14 pushes the locking gear plate 9 to mesh with the moving gear plate 6, forming a mechanical rigid lock. The second hydraulic cylinder 16 links the reduction plate 10 through the extension plate 15, pushing the reduction plate 10 to move towards the support wheel 8, and frictionally locking the support wheel 8. When the electromagnetic plate 11 is energized, it generates magnetic attraction. At this time, the electromagnetic plate 11, the reduction plate 10, and the support wheel 8 form a magnetic attraction lock, forming a "mechanical + electromagnetic" double fixation.

[0027] Example 2

[0028] Please see Figures 1-5 Based on Embodiment 1, there are two support legs 1 and two main beams 3. The two support legs 1 are fixedly connected by a connecting beam. The connecting beam is used to fix the two support legs 1 together. The top of the main beam 3 has a sliding groove 12 adapted to the support wheel 8. The main beam 3, support wheel 8 and speed reducer 10 are all made of magnetic material. The sliding groove 12 is used to limit the support wheel 8 to slide in a straight line. The inside of the running box 5 has an inlet / outlet slot 13 adapted to the locking tooth plate 9. A first hydraulic cylinder 14 is fixedly connected inside the inlet / outlet slot 13. The output end of the first hydraulic cylinder 14 is fixedly connected to the locking tooth plate 9. Through the inlet / outlet slot 13, the locking tooth plate 9 can be retracted into the running box 5 during the movement of the running box 5. The first hydraulic cylinder 14 is used to push the locking tooth plate. 9. The locking gear plate 9 is fixedly connected to an extension plate 15 near the running box 5. There are two extension plates 15, and a second hydraulic cylinder 16 is fixedly connected between the two extension plates 15. The extension plates 15 and the second hydraulic cylinder 16 are used to push the reduction plate 10 to move. The second hydraulic cylinder 16 is a double-headed hydraulic cylinder. A connecting plate 17 is fixedly connected to the output end of the second hydraulic cylinder 16. The bottom of the connecting plate 17 is fixedly connected to the top of the reduction plate 10. The connecting plate 17 is used to fix the reduction plate 10 and the second hydraulic cylinder 16. The electromagnetic plate 11 has a reduction groove adapted to the support wheel 8 near the support wheel 8. A drive motor is fixedly connected inside the running box 5. The output shaft of the drive motor is fixedly connected to the drive gear 7. The drive motor is used to drive the drive gear 7 to rotate.

[0029] The working principle of this utility model is as follows: When it is necessary to lift an object, the crane is pushed to the designated position, the hook 4 is placed downwards on the top of the object, and after the hook 4 lifts the object, the drive motor drives the drive gear 7 to rotate. The drive gear 7 moves on the surface of the moving tooth plate 6, and the drive gear 7 drives the running box 5 to move along the beam 3, thereby moving the object.

[0030] When the object is moved to the desired placement position, the drive motor stops. Then, the first hydraulic cylinder 14 moves the locking tooth plate 9 out of the inlet / outlet slot 13. The locking tooth plate 9 engages with the moving tooth plate 6 to perform the first locking. During the movement of the locking tooth plate 9, the deceleration plate 10 moves towards the support wheel 8. The deceleration plate 10 contacts the support wheel 8. After the locking tooth plate 9 engages with the moving tooth plate 6, the electromagnetic plate 11 contacts the support wheel 8. After the electromagnetic plate 11 is energized, it magnetically attracts and fixes itself to the deceleration plate 10 and the support wheel 8. The running box 5 is then locked. At this time, the hook 4 moves the object downwards and places the object.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mobile crane, comprising outriggers (1), characterized in that: The bottom of the support leg (1) is fixedly connected to a movable base plate (2), the top of the support leg (1) is fixedly connected to a beam (3), the top of the beam (3) is provided with a trolley running component, and the bottom of the trolley running component is provided with a hook (4). The trolley running assembly includes a running box (5) disposed on one side of the main beam (3), a movable toothed plate (6) fixedly connected to the top of the main beam (3), a drive gear (7) meshing with the top of the movable toothed plate (6), and a support wheel (8) movably connected to one side of the running box (5) via a bearing. A locking assembly is provided on one side of the running box (5). The locking assembly includes a locking tooth plate (9) provided on one side of the running box (5), a speed reduction plate (10) provided on one side of the running box (5), and an electromagnetic plate (11) fixedly connected to one side of the speed reduction plate (10).

2. The easily movable crane according to claim 1, characterized in that: The number of the support legs (1) and the main beam (3) are both two, and the two support legs (1) are fixedly connected by a connecting beam.

3. A mobile crane according to claim 1, characterized in that: The top of the main beam (3) is provided with a movable groove (12) that is compatible with the support wheel (8). The main beam (3), the support wheel (8) and the speed reducer (10) are all made of magnetic material.

4. A mobile crane according to claim 1, characterized in that: The operating box (5) has an inlet / outlet slot (13) that is compatible with the locking tooth plate (9). A first hydraulic cylinder (14) is fixedly connected inside the inlet / outlet slot (13), and the output end of the first hydraulic cylinder (14) is fixedly connected to the locking tooth plate (9).

5. A mobile crane according to claim 1, characterized in that: The locking tooth plate (9) is fixedly connected to an extension plate (15) on the side near the running box (5). There are two extension plates (15), and a second hydraulic cylinder (16) is fixedly connected between the two extension plates (15).

6. A mobile crane according to claim 5, characterized in that: The second hydraulic cylinder (16) is a double-headed hydraulic cylinder, and a connecting plate (17) is fixedly connected to the output end of the second hydraulic cylinder (16).

7. A mobile crane according to claim 1, characterized in that: The electromagnetic plate (11) has a deceleration groove that matches the support wheel (8) on the side near the support wheel (8). The running box (5) has a drive motor fixedly connected inside, and the output shaft of the drive motor is fixedly connected to the drive gear (7).

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