Bridge crane with anti-swinging spreader

Abstract

The utility model provides a kind of crane that prevents sling inclination, including crane main body, and sling is hung on the hook below crane main body;The sling has a hanger, the inside of the hanger is slidably provided with crossbeam, the inside of the hanger is provided with the adjusting drive component of driving the crossbeam to slide in the inside of the hanger, the bottom of both ends of the crossbeam is fixedly provided with hanger plate, the hanger is provided with the locking mechanism for locking or releasing between the hanger and the crossbeam;The hanger is hung with suspender;In the utility model, after lifting the thing to be hung to a certain height, if the gravity center of the thing to be hung is not aligned with the hook directly below, cause sling partial load inclination, at this time, the crossbeam is moved relative to the hanger to the higher end of crossbeam by adjusting drive component, the position of the gravity center of the thing to be hung relative to the hook is adjusted, until the crossbeam restores level, avoid sling long-term inclination, ensure its safe operation.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, specifically relating to a bridge crane that prevents the lifting device from tilting. Background Technology

[0002] When using a bridge crane to lift objects, the center of gravity of the object must be aligned directly below the hook. For regular and uniform objects, the center of gravity can be determined as the center of gravity. However, when lifting irregular or uneven objects, it is difficult to align the center of gravity directly below the hook, causing the lifting equipment to tilt due to uneven loading. Long-term tilting of the lifting equipment will cause the horizontal displacement of the main beam to exceed the tolerance, accelerate the fatigue of the metal structure, and even lead to derailment accidents.

[0003] Therefore, it is necessary to design a bridge crane that can adjust the center of gravity of the suspended load to prevent the lifting device from tilting for a long time, in order to solve the current technical problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bridge crane that can adjust the center of gravity of the suspended load to prevent the lifting device from tilting over a long period of time.

[0005] The technical solution of this utility model is as follows: a bridge crane for preventing the lifting device from tilting, comprising a crane body, a lifting device being hung on a hook below the crane body; the lifting device having a frame, a crossbeam being slidably arranged inside the frame, an adjusting drive component being provided inside the frame to drive the crossbeam to slide within the frame, lifting plates being fixedly arranged at the bottom of both ends of the crossbeam, a locking mechanism being provided on the frame for locking or releasing the frame from the crossbeam; and a lifting rod being hung on the hook.

[0006] Furthermore, the locking mechanism has a locking frame that is slidably mounted on the hanger in a vertical direction. The top inner side of the locking frame corresponds to the top of the crossbeam. The bottom inner side of the locking frame is provided with a locking plate that corresponds to the bottom of the crossbeam. The bottom outer side of the locking frame is fixedly provided with a locking drive component that drives the locking plate to move up and down.

[0007] Furthermore, the hanger has two parallel side plates, and the side plates are provided with sliding grooves corresponding to the upper and lower ends of the locking frame. The inner sides of the locking frame are in sliding contact with the outer sides of the side plates respectively.

[0008] Furthermore, the locking drive component is a hydraulic cylinder.

[0009] Furthermore, the hanger has two side plates, and two connecting plates are fixedly arranged between the two side plates. The adjustment drive component is a double piston rod hydraulic cylinder. The two ends of the piston rod of the adjustment drive component are respectively fixedly connected to the two connecting plates. The ends of the two piston rods of the adjustment drive component are each fixedly provided with a support plate, and the support plate is fixedly connected to the top of the crossbeam.

[0010] Furthermore, an upper sliding roller and a lower sliding roller are rotatably arranged between the two side plates, the upper sliding roller corresponding to the top of the crossbeam and the lower sliding roller corresponding to the bottom of the crossbeam.

[0011] Furthermore, a reinforcing plate is fixedly provided between the side of the support plate opposite to the adjusting drive component and the crossbeam.

[0012] Furthermore, the crossbeam is an I-beam, and ribs are evenly distributed on the crossbeam.

[0013] The beneficial effects of this utility model are:

[0014] (1) In this utility model, after the object is lifted to a certain height, if the center of gravity of the object is not aligned with the hook directly below, causing the lifting device to tilt due to uneven load, the drive component is adjusted to drive the crossbeam to move relative to the higher end of the crossbeam, thereby adjusting the position of the center of gravity of the object relative to the hook until the crossbeam returns to horizontal, thus avoiding long-term tilting of the lifting device and ensuring its safe operation.

[0015] (2) Before the adjustment drive component drives the crossbeam to move relative to the hanger for adjustment, the locking mechanism releases the crossbeam from the hanger. When the crossbeam returns to horizontal, the locking mechanism locks the crossbeam from the hanger, improving the stability of the connection between the hanger and the crossbeam. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the bridge crane with anti-tilting lifting device in this utility model.

[0017] Figure 2 This is one of the structural schematic diagrams of the anti-tilting lifting device for bridge cranes in this utility model.

[0018] Figure 3 This is the second structural schematic diagram of the anti-tilting lifting device for bridge cranes in this utility model.

[0019] Figure 4 This is a partial structural diagram of the anti-tilting lifting device for bridge cranes in this utility model. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0021] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 4 As shown, the anti-tilting bridge crane includes a crane body 20, with a lifting device 10 mounted on a hook 30 below the crane body 20. The lifting device 10 has a frame, with a crossbeam 1 slidably arranged inside the frame 2. An adjusting drive component 5 is installed inside the frame 2 to drive the crossbeam 1 to slide within the frame 2. Hanging plates 4 are fixedly installed at the bottom of both ends of the crossbeam 1. A locking mechanism 7 is provided on the frame 1 for locking or releasing the frame 2 and the crossbeam 1. A lifting rod 3 is mounted on the hook 30. In this embodiment, after the load is lifted to a certain height, if the lifting device tilts... If the center of gravity of the load is not aligned directly below the hook, causing the lifting device to tilt due to uneven load, the drive component 5 is adjusted to move the crossbeam 1 relative to the lifting frame 2 towards the higher end of the crossbeam 1, adjusting the position of the center of gravity of the load relative to the hook 30 until the crossbeam 1 returns to horizontal, preventing the lifting device 10 from tilting for a long time and ensuring its safe operation. Before the drive component 5 moves the crossbeam 1 relative to the lifting frame 2 for adjustment, the locking mechanism 7 releases the crossbeam 1 from the lifting frame 2. After the crossbeam 1 returns to horizontal, the locking mechanism 7 locks the crossbeam 1 from the lifting frame 2, improving the stability of the connection between the lifting frame 2 and the crossbeam 1.

[0023] In some embodiments, the locking mechanism 7 has a locking frame 71 that is slidably disposed on the hanger 2 in a vertical direction. The top inner side of the locking frame 71 corresponds to the top of the crossbeam 1, and the bottom inner side of the locking frame 71 is provided with a locking plate 72 that corresponds to the bottom of the crossbeam 1. The bottom outer side of the locking frame 71 is fixedly provided with a locking drive component 73 that drives the locking plate 72 to move up and down. Before the adjustment drive component 5 drives the crossbeam 1 to move relative to the hanger 2 for adjustment, the locking drive component 73 drives the locking plate 72 to move down, and the locking frame 71 can slide on the crossbeam 1 and slide to adjust the crossbeam 1 in the hanger 2. When the crossbeam 1 returns to horizontal, the locking drive component 73 drives the locking plate 72 to move up, and the locking plate 72 abuts against the bottom of the crossbeam 1. The locking plate 72 and the locking frame 71 cooperate to clamp and fix the crossbeam 1 on the upper and lower sides, locking the hanger 2 and the crossbeam 1, thereby improving the stability of the connection between the hanger 2 and the crossbeam 1.

[0024] In some embodiments, the hanger 2 has two parallel side plates 21, and the side plates 21 are provided with sliding grooves 25 corresponding to the upper and lower ends of the locking frame 71. The sliding grooves 25 provide a space for the locking frame 71 to move during the process of the locking mechanism 7 changing from the locked state to the released state. The inner sides of the locking frame 71 slide in contact with the outer side of the side plate 21 respectively.

[0025] In some embodiments, the locking drive component 73 is a hydraulic cylinder. By controlling the extension and retraction of the piston rod of the hydraulic cylinder 73, the locking plate 72 is driven to move up and down, thereby realizing the locking mechanism 7 locking or releasing the crossbeam 1 and the hanger 2.

[0026] In some embodiments, the hanger 2 has two side plates 21, and two connecting plates 24 are fixedly arranged between the two side plates 21. The adjustment drive component 5 is a double piston rod hydraulic cylinder. The two ends of the piston rod of the adjustment drive component 5 are fixedly connected to the two connecting plates 24 respectively. The ends of the two piston rods of the adjustment drive component 5 are fixedly provided with support plates 6, and the support plates 6 are fixedly connected to the top of the crossbeam 1. The ends of the two piston rods of the double piston rod hydraulic cylinder can move synchronously and in the same direction. The ends of the two piston rods of the double piston rod hydraulic cylinder are fixedly connected to the crossbeam 1 through the support plates 6, which can drive the crossbeam 1 to move inside the hanger 2.

[0027] In some embodiments, an upper sliding roller 23 and a lower sliding roller 22 are rotatably arranged between the two side plates 21. The upper sliding roller 23 corresponds to the top of the crossbeam 1, and the lower sliding roller 22 corresponds to the bottom of the crossbeam 1. The sliding connection between the hanger 2 and the crossbeam 1 is achieved by the upper sliding roller 23 and the lower sliding roller 22, which can reduce the friction between the hanger 2 and the crossbeam 1 during the tilting and leveling process.

[0028] In some embodiments, a reinforcing plate 61 is fixedly provided between the side of the support plate 6 away from the adjustment drive component 5 and the crossbeam 1. The reinforcing plate 61 can improve the connection strength between the support plate 6 and the crossbeam 1.

[0029] In some embodiments, the crossbeam 1 is an I-beam, and ribs 11 are evenly provided on the crossbeam 1.

[0030] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0031] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bridge crane with anti-tilting features for the lifting device, characterized in that: The system includes a crane body, with a lifting device mounted on a hook below the crane body; the lifting device has a frame, with a crossbeam slidably arranged inside the frame, and an adjusting drive component inside the frame to drive the crossbeam to slide within the frame; hanging plates are fixedly installed at the bottom of both ends of the crossbeam; the frame is equipped with a locking mechanism for locking or releasing the frame from the crossbeam; and a lifting rod is mounted on the hook.

2. The bridge crane with anti-tilting lifting device according to claim 1, characterized in that: The locking mechanism has a locking frame that is slidably mounted on the hanger in a vertical direction. The top inner side of the locking frame corresponds to the top of the crossbeam. The bottom inner side of the locking frame is provided with a locking plate that corresponds to the bottom of the crossbeam. The bottom outer side of the locking frame is fixedly provided with a locking drive component that drives the locking plate to move up and down.

3. The anti-tilting bridge crane according to claim 2, characterized in that: The hanger has two parallel side plates, and the side plates are provided with sliding grooves corresponding to the upper and lower ends of the locking frame. The inner sides of the locking frame are in sliding contact with the outer sides of the side plates respectively.

4. The anti-tilting bridge crane according to claim 2, characterized in that: The locking drive component is a hydraulic cylinder.

5. The bridge crane with anti-tilting lifting device according to claim 1, characterized in that: The hanger has two side plates, and two connecting plates are fixedly arranged between the two side plates. The adjustment drive component is a double piston rod hydraulic cylinder. The two ends of the piston rod of the adjustment drive component are fixedly connected to the two connecting plates respectively. The ends of the two piston rods of the adjustment drive component are fixedly provided with support plates, and the support plates are fixedly connected to the top of the crossbeam.

6. The anti-tilting bridge crane according to claim 5, characterized in that: An upper sliding roller and a lower sliding roller are rotatably arranged between the two side plates. The upper sliding roller corresponds to the top of the crossbeam, and the lower sliding roller corresponds to the bottom of the crossbeam.

7. The anti-tilting bridge crane according to claim 5, characterized in that: A reinforcing plate is fixedly installed between the side of the support plate opposite to the adjustment drive component and the crossbeam.

8. The bridge crane with anti-tilting lifting device according to claim 1, characterized in that: The crossbeam is an I-beam, and ribs are evenly distributed on the crossbeam.

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