Suspension beam for electromagnetic suspension beam crane

Abstract

The utility model discloses a suspension beam for an electromagnetic suspension beam crane, and relates to the technical field of electromagnetic suspension beam cranes. The side surface of the suspension beam is provided with a chute which is arranged along the axial direction of the suspension beam and penetrates through the suspension beam; a plurality of sliding blocks which are sequentially arranged at intervals in the axial direction of the suspension beam and a driving mechanism for driving the sliding blocks to synchronously move are arranged in the sliding grooves, and hanging rings connected with the electromagnetic chucks are arranged on the two sides of the sliding blocks exposed through groove openings of the sliding grooves; when the electromagnetic chuck device is used for adsorbing and lifting objects with different sizes, the overall length of the plurality of electromagnetic chucks can be adaptively adjusted according to the sizes of the objects, so that the plurality of electromagnetic chucks can be used for adsorbing and lifting the objects, and powerful support is provided for the efficient and stable lifting operation of the electromagnetic suspended beam crane.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic hanging beam cranes, in particular to a suspension beam for an electromagnetic hanging beam crane. Background Art

[0002] China's steel industry is an important pillar industry of the national economy, playing an important role in economic construction, social development, fiscal revenue, national defense construction and stable employment, and making important contributions to ensuring the sound and rapid development of the national economy; in order to meet the daily lifting operations of steel plates, the application of electromagnetic hanging beam cranes is becoming more and more extensive. An electromagnetic hanging beam crane is a device that uses an electromagnetic chuck or an electromagnet to lift and suspend heavy objects, and it is extremely convenient and efficient for the adsorption and lifting operations of steel plates.

[0003] However, during the magnetic adsorption and lifting operation of the current electromagnetic hanging beam crane, since the installation positions of multiple electromagnetic chucks at the lower part of its suspension beam are fixed, it can only meet the magnetic adsorption and lifting operations of some steel plates with compatible sizes. If the size of the steel plate is too large and far exceeds the length of the suspension beam, the electromagnetic chuck can only suck the local part of the steel plate. If the size of the steel plate is too small, the electromagnetic chucks on both sides cannot suck the steel plate smoothly. Whether it is the local adsorption of the electromagnetic chuck or the adsorption of some electromagnetic chucks, it will affect the firmness and stability during the adsorption and lifting process of the steel plate, and have an adverse impact on the safety of the adsorption and lifting of the steel plate. Summary of the Utility Model

[0004] In order to overcome the deficiencies in the background art, the utility model discloses a suspension beam for an electromagnetic hanging beam crane. When the utility model adsorbs and lifts objects of different sizes, it can adaptively adjust the overall length of multiple electromagnetic chucks according to the size specifications of the objects, so that multiple electromagnetic chucks can all perform adsorption and lifting operations on the objects, providing strong support for the efficient and stable lifting operation of the electromagnetic hanging beam crane.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A suspension beam for an electromagnetic hanging beam crane, comprising a suspension beam. Several lifting lugs connected to the hoisting mechanism of the crane are evenly distributed on the upper part of the suspension beam. Several electromagnetic suction cups are provided on the lower part of the suspension beam. A chute is provided on the side surface of the suspension beam, which is arranged along the axial direction of the suspension beam and penetrates the suspension beam. Several sliding blocks arranged at intervals in an orderly manner along the axial direction of the suspension beam, and a driving mechanism for driving the several sliding blocks to move synchronously are respectively arranged in the chute. The driving mechanism includes a bidirectional lead screw, a support block and a driving motor. The support block and the driving motor are respectively arranged at both ends inside the chute. The several sliding blocks are located between the support block and the driving motor. One end of the bidirectional lead screw is rotatably connected to the support block, and the other end is in transmission connection with the output end of the driving motor. The bidirectional lead screw sequentially penetrates the several sliding blocks and is in threaded cooperation with the sliding blocks. Hoisting rings for connecting with the electromagnetic suction cups are provided on both sides of the sliding block exposed through the chute opening.

[0007] Further, the height of the sliding block is adapted to the height of the chute.

[0008] Further, a limiting convex rib arranged along the axial direction of the chute is provided on the inner bottom surface of the chute, and a limiting groove adapted to the limiting convex rib and having an open structure at both ends is provided on the lower surface of the sliding block.

[0009] Further, several U-shaped limiting plates attached to the lower surface of the suspension beam and detachably connected to the several sliding blocks are provided on the lower part of the suspension beam.

[0010] Further, mounting holes A are provided on both sides of the sliding block exposed through the chute opening, mounting holes B corresponding to the mounting holes A are provided on both side plates of the U-shaped limiting plate, and bolts are provided in the corresponding mounting holes A and mounting holes B.

[0011] Further, a support plate that is rotationally matched with the bidirectional lead screw and used to support the bidirectional lead screw is provided between adjacent sliding blocks.

[0012] Further, the distance between the support plate and the adjacent sliding block is not less than the sliding distance of the sliding block.

[0013] Further, a bearing is provided in the middle of the support plate. The bidirectional lead screw penetrates the inner ring of the bearing and is in interference fit with the inner ring of the bearing. No thread is provided on the rod body of the bidirectional lead screw in contact with the inner ring of the bearing.

[0014] Further, touch switches for controlling the driving motor are provided on both side surfaces of the sliding block facing both ends of the chute.

[0015] Further, a wire ring for limiting and blocking the wires of the electromagnetic suction cup is provided on one side of the sliding block exposed through the chute opening.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] By means of driving several sliding blocks to move through a bidirectional lead screw, the sliding blocks at both ends of the bidirectional lead screw can move synchronously towards or away from each other, so as to realize the adjustment of the overall axial length of several sliding blocks, providing strong support for the subsequent adsorption and lifting operations of plates of different specifications;

[0018] By setting a limiting convex rib and a U-shaped limiting plate, the stability of the sliding block during the sliding adjustment process can be greatly improved, thus providing strong guarantee for the subsequent adsorption and lifting operations of the electromagnetic chuck;

[0019] By setting a support plate, the screw can be firmly and stably supported horizontally, thus providing strong support for the subsequent driving and adjustment of the sliding block;

[0020] By setting a touch switch, during the sliding adjustment of the electromagnetic chuck, the driving motor is controlled to stop by the touch of the touch switch and the support plate, so as to avoid the collision between the sliding block and the end of the sliding groove;

[0021] By setting a wire loop, since the electromagnetic chuck can be slidably adjusted, the wire connecting the electromagnetic chuck must necessarily meet the length of its moving distance. The wire of the electromagnetic chuck is limited and blocked by the wire loop to prevent the wire from fluttering or falling to the bottom of the electromagnetic chuck and affecting the subsequent adsorption operation;

[0022] When the utility model adsorbs and lifts objects of different sizes, the overall length of multiple electromagnetic chucks can be adaptively adjusted according to the size specifications of the objects to be lifted, so that multiple electromagnetic chucks can all perform adsorption and lifting operations on the objects to be lifted, providing strong support for the efficient and stable lifting operations of the electromagnetic hanging beam crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the utility model;

[0024] Figure 2 is a structural schematic diagram of the suspension beam of the utility model;

[0025] Figure 3 is a structural schematic diagram of the sliding block of the utility model;

[0026] Figure 4 is a structural schematic diagram of the support plate of the utility model.

[0027] In the figure: 1, support block; 2, lifting lug; 3, suspension beam; 4, sliding block; 5, sliding groove; 6, support plate; 7, bidirectional lead screw; 8, electromagnetic chuck; 9, driving motor; 10, limiting convex rib; 11, touch switch; 12, wire loop; 13, lifting ring; 14, screw hole; 15, mounting hole A; 16, limiting groove; 17, U-shaped limiting plate; 18, mounting hole B; 19, bolt; 20, bearing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solution of the present utility model will be described below in conjunction with the accompanying drawings in the embodiments of the present utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, they only correspond to the accompanying drawings of the present utility model. For the convenience of describing the present utility model, it does not indicate or imply that the device or element referred to must have a specific orientation.

[0029] Please refer to the attached Figures 1-4 of the specification. The present utility model provides a technical solution:

[0030] Embodiment 1. A suspension beam for an electromagnetic hanging beam crane includes a suspension beam 3. Several lifting lugs 2 connected to the hoisting mechanism of the crane are evenly distributed on the upper part of the suspension beam 3. Several electromagnetic suction cups 8 are provided on the lower part of the suspension beam 3. The existing electromagnetic suction cups 8 are fixedly installed at equal intervals on the lower part of the suspension beam 3, and the electromagnetic suction cups 8 cannot be moved and adjusted. When dealing with some lifting objects whose size specifications are much larger than the length of the suspension beam 3, several electromagnetic suction cups 8 can only adsorb part of the lifting object. If dealing with some lifting objects whose size specifications are smaller than the length of the suspension beam 3, only the electromagnetic suction cup 8 in the middle can adsorb the lifting object, and the electromagnetic suction cups 8 on both sides exceed the lifting object and cannot be adsorbed. In either case, it will have an adverse impact on the safety of magnetic adsorption lifting.

[0031] In order to realize the movement and adjustment of multiple electromagnetic suction cups 8, a chute 5 is provided on the side of the suspension beam 3 along the axial direction of the suspension beam 3 and runs through the suspension beam 3. Several sliding blocks 4 arranged at intervals in an orderly manner along the axial direction of the suspension beam 3 and a driving mechanism for driving the synchronous movement of several sliding blocks 4 are respectively provided in the chute 5. The driving mechanism includes a bidirectional lead screw 7, a support block 1, and a driving motor 9. The support block 1 and the driving motor 9 are respectively arranged at both ends inside the chute 5. Several sliding blocks 4 are located between the support block 1 and the driving motor 9. One end of the bidirectional lead screw 7 is rotatably connected to the support block 1, and the other end is in transmission connection with the output end of the driving motor 9. A screw hole 14 penetrating the sliding block 4 and corresponding to the bidirectional lead screw 7 is provided on one side of the sliding block 4 facing the end of the chute 5. The bidirectional lead screw 7 passes through several sliding blocks 4 in sequence through the screw hole 14 on the sliding block 4 and is in threaded cooperation with the sliding block 4. Hoisting rings 13 for connecting with the electromagnetic suction cups 8 are provided on both sides of the sliding block 4 exposed through the notch of the chute 5.

[0032] Several electromagnetic chucks 8 are symmetrically arranged at equal intervals. For example, if the number of electromagnetic chucks 8 is four, then the two electromagnetic chucks 8 on the left are threadedly connected to the left rod body of the bidirectional lead screw 7, and the two electromagnetic chucks 8 on the right are threadedly connected to the right rod body of the bidirectional lead screw 7. When the drive motor 9 drives the bidirectional lead screw 7 to rotate, the left and right electric chucks 8 move synchronously in the same direction or in opposite directions. The distance between the left and right electromagnetic chucks 8 remains unchanged, and only the distance between the two electromagnetic chucks 8 in the middle is reduced or increased. By using the drive of the bidirectional lead screw 7, the overall length of several electromagnetic chucks 8 can be adjusted to meet the adsorption and lifting operations of lifting objects of different size specifications.

[0033] In Embodiment 2, in order to ensure that the slider 4 can maintain horizontal stability during the process of driving the slider 4 by the bidirectional lead screw 7, and further provide strong support for the adsorption operation of the lower electromagnetic chuck 8, the height of the slider 4 is adapted to the height of the chute 5. The upper and lower surfaces of the slider 4 are respectively in contact with the upper and lower surfaces of the chute 5. A limiting convex rib 10 arranged along the axial direction of the chute 5 is provided on the inner bottom surface of the chute 5, and a limiting groove 16 that is adapted to the limiting convex rib 10 and has an open structure at both ends is provided on the lower surface of the slider 4. By using the cooperation of the limiting convex rib 10 and the limiting groove 16, the horizontal stability of the slider 4 during the sliding process in the chute 5 can be effectively ensured;

[0034] To further improve the horizontal stability of the slider 4, several U-shaped limiting plates 17 that are attached to the lower surface of the suspension beam 3 and are detachably connected to several sliders 4 are provided under the suspension beam 3. Specifically, mounting holes A15 are provided on both sides of the slider 4 exposed through the notch of the chute 5, and mounting holes B18 corresponding to the mounting holes A15 are provided on both side plates of the U-shaped limiting plate 17. Bolts 19 are provided in the corresponding mounting holes A15 and mounting holes B18.

[0035] In the third embodiment, the two ends of the bidirectional screw rod 7 are connected to the support block 1 and the driving motor 9 respectively. Although the upper and lower surfaces of the sliding block 4 are in contact with the upper and lower surfaces of the slide groove 5, a certain gap must be left to ensure the sliding of the sliding block 4. The bidirectional screw rod 7 is easily offset by force during the movement of the driving sliding block 4, and in severe cases, the driving motor 9 will be damaged. In order to improve the stability of the bidirectional screw rod 7 and ensure its horizontal stability, a support plate 6 that is rotatably matched with the bidirectional screw rod 7 and is used to support the bidirectional screw rod 7 is provided between adjacent sliding blocks 4. The support plate A bearing 20 is provided in the middle of 6, and the bidirectional screw rod 7 passes through the inner ring of the bearing 20 and has an interference fit with the inner ring of the bearing 20. No threads are provided on the rod body of the bidirectional screw rod 7 that contacts the inner ring of the bearing 20. In order to prevent the sliding block 4 from colliding with the support plate 6 during movement, the spacing between the support plate 6 and the adjacent sliding block 4 is not less than the sliding distance of the sliding block 4. This ensures that even if the outermost sliding block 4 moves to the end of the bidirectional screw rod 7, or the two middle sliding blocks 4 move to the closest spacing, the sliding block 4 will only just contact the support plate 6, and will not apply force to the support plate 6.

[0036] Embodiment 4: In order to prevent the sliding block 4 from accidentally colliding and rubbing with the support plate 6 or the end of the slide groove 5 due to the driving motor 9 continuing to work after the sliding block 4 moves to the maximum sliding distance, the support plate 6 between adjacent sliding blocks 4 is set in the middle position between the two, and the two side surfaces of the sliding block 4 facing the two ends of the slide groove 5 are provided with touch switches 11 for controlling the driving motor 9. When the sliding block 4 moves to the maximum active distance, the touch switch 11 on the side of the sliding block 4 just conflicts with the support plate 6. The touch switch 11 is touched and sends a control signal to control the driving motor 9 to stop, thereby avoiding excessive movement of the sliding block 4.

[0037] In the fifth embodiment, since the electromagnetic suction cup 8 is movable, the length of the wire for supplying power to the electromagnetic suction cup 8 must be adapted to the range of movement of the electromagnetic suction cup 8. In order to prevent the long wire from floating around during the lifting operation, or partially falling to the bottom of the electromagnetic suction cup 8 and affecting the subsequent adsorption operation, a wire ring 12 for limiting the wire of the electromagnetic suction cup 8 is provided on one side of the sliding block 4 exposed through the notch of the slide groove 5.

[0038] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A suspension beam for an electromagnetic suspension beam crane, comprising a suspension beam (3), a plurality of lifting eyes (2) connected to a lifting mechanism of the crane evenly distributed on the upper portion of the suspension beam (3), a plurality of electromagnetic suction cups (8) provided on the lower portion of the suspension beam (3), characterized in that: A slide groove (5) is provided on the side of the suspension beam (3) and is arranged along the axial direction of the suspension beam (3) and passes through the suspension beam (3); a limit ridge (10) is provided on the inner bottom surface of the slide groove (5) and is arranged along the axial direction of the slide groove (5); a plurality of sliding blocks (4) are arranged in an orderly manner along the axial direction of the suspension beam (3) at intervals in the slide groove (5); and a driving mechanism for driving the plurality of sliding blocks (4) to move synchronously is provided; a limit groove (16) is provided on the lower surface of the sliding block (4) and is matched with the limit ridge (10) and has an open structure at both ends; the driving mechanism comprises a bidirectional screw rod (7), a support block (1) and a drive motor (9); the support block (1) and the drive motor (9) are respectively The plurality of sliding blocks (4) are respectively arranged at the two ends inside the slide groove (5), and the plurality of sliding blocks (4) are located between the support block (1) and the drive motor (9). One end of the bidirectional screw rod (7) is rotationally connected to the support block (1), and the other end is transmission-connected to the output end of the drive motor (9). The bidirectional screw rod (7) sequentially passes through the plurality of sliding blocks (4) and is threadedly matched with the sliding blocks (4). Both sides of the sliding blocks (4) exposed through the notch of the slide groove (5) are provided with hanging rings (13) for connecting with the electromagnetic suction cup (8). The lower part of the suspension beam (3) is provided with a plurality of U-shaped limit plates (17) attached to the lower surface of the suspension beam (3) and detachably connected to the plurality of sliding blocks (4).

2. The suspension beam for an electromagnetic suspension beam crane according to claim 1, characterized in that: The height of the sliding block (4) matches the height of the sliding groove (5).

3. The suspension beam for an electromagnetic suspension beam crane according to claim 1, characterized in that: Both sides of the sliding block (4) exposed through the notch of the slide groove (5) are provided with mounting holes A (15), and both side plates of the U-shaped limiting plate (17) are provided with mounting holes B (18) corresponding to the mounting holes A (15), and bolts (19) are provided in the corresponding mounting holes A (15) and mounting holes B (18).

4. The suspension beam for an electromagnetic suspension beam crane according to claim 1, characterized in that: A support plate (6) is provided between adjacent sliding blocks (4) and is rotatably matched with the bidirectional screw rod (7) and is used to support the bidirectional screw rod (7).

5. The suspension beam for an electromagnetic suspension beam crane according to claim 4, characterized in that: The distance between the support plate (6) and the adjacent sliding block (4) is not less than the sliding distance of the sliding block (4).

6. The suspension beam for an electromagnetic suspension beam crane according to claim 5, characterized in that: A bearing (20) is provided in the middle of the support plate (6); the bidirectional screw rod (7) passes through the inner ring of the bearing (20) and is interference fit with the inner ring of the bearing (20); and no thread is provided on the rod body of the bidirectional screw rod (7) in contact with the inner ring of the bearing (20).

7. The suspension beam for an electromagnetic suspension beam crane according to claim 4, characterized in that: Touch switches (11) for controlling the drive motor (9) are provided on both side surfaces of the sliding block (4) facing the two ends of the sliding groove (5).

8. The suspension beam for an electromagnetic suspension beam crane according to claim 1, characterized in that: A wire ring (12) for limiting and blocking the wire of the electromagnetic suction cup (8) is provided on one side of the sliding block (4) exposed through the notch of the sliding groove (5).

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