Portal crane with anti-swing structure

Abstract

The utility model discloses a portal crane with an anti-swing structure, and mainly relates to a portal crane. Comprising two supports, the upper ends of the two supports are fixedly connected with a cross beam, the surface of the cross beam is provided with a lifting device, the surface of the lifting device is provided with a hook lock, the surface of the cross beam is provided with an adjusting structure, the adjusting structure comprises a movable frame, the movable frame is slidably connected with the cross beam, and the inner wall of the movable frame is rotatably connected with a plurality of pulleys; the arc surfaces of the pulleys are slidably connected with the cross beam, two supporting pipes are fixedly connected to the two sides of the movable frame, adjusting rods are in threaded connection with the inner walls of the two supporting pipes, positioning plates are rotatably connected to the lower ends of the adjusting rods, and limiting rods are fixedly connected to the upper surfaces of the positioning plates. The lifting appliance has the advantages that the two positioning plates are operated to abut against the upper surface of a lifted object, the lifted object is limited through the positioning plates, the lifted object can be effectively prevented from swinging, operation is easy and convenient, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a gantry crane with an anti-swing structure. Background Technique

[0002] A gantry crane, also known as a gantry hoist, is a lifting equipment suitable for loading and unloading heavy objects such as materials and machines indoors and outdoors. It consists of a large gantry frame, a trolley, and a lifting mechanism.

[0003] In the prior art, when using a gantry crane to lift a heavy object, the crane as a whole is controlled to move above the heavy object, and then the hook lock of the crane is controlled to lower to the upper surface of the heavy object. The hook lock is operated to connect the heavy object, and then the crane is controlled to retract the hook lock to lift the heavy object. However, the following problems will occur in this operation. When the lifting device uses the hook lock to lift the heavy object and move it, the heavy object is prone to swing under the action of inertia. When the swing amplitude is large, it will cause danger. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages that the heavy object to be lifted is prone to swing during the movement process and has low safety in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A gantry crane with an anti-swing structure includes two brackets. The upper ends of the two brackets are fixedly connected with a cross beam. A lifting device is installed on the surface of the cross beam. A hook lock is installed on the surface of the lifting device. An adjusting structure is arranged on the surface of the cross beam. The adjusting structure includes a moving frame. The moving frame is slidably connected with the cross beam. A plurality of pulleys are rotatably connected to the inner wall of the moving frame. The arc surfaces of the plurality of pulleys are slidably connected with the cross beam. Two support pipes are fixedly connected to both sides of the moving frame. Adjusting rods are threadedly connected to the inner walls of the two support pipes. The lower ends of the adjusting rods are rotatably connected with positioning plates. A limiting rod is fixedly connected to the upper surface of the positioning plate. The arc surface of the limiting rod is slidably connected with a straight rectal tube.

[0006] The effect achieved by the above components is that the positioning plate is used to limit the lifted object, which can effectively prevent the lifted object from swinging, is simple and convenient to operate, and has high safety.

[0007] Preferably, a plurality of cushion plates are fixedly connected to the inner wall of the moving frame at positions corresponding to the lifting device. The cross section of the cushion plate is rectangular.

[0008] The effect achieved by the above components is that the lifting device drives the moving frame to move along the cross beam. The cushion plate is used to protect between the moving frame and the lifting device, reducing damage.

[0009] Preferably, a ring is fixedly connected to the arc surface of the adjusting rod, and a number of round holes are formed in the arc surface of the ring. A handle rod is slidably connected to the inner wall of one of the round holes.

[0010] The effect achieved by the above components is that operating the handle rod drives the ring to rotate, and the ring drives the adjusting rod to rotate, facilitating the user to rotate the adjusting rod.

[0011] Preferably, an anti-slip sleeve is fixedly connected to the arc surface of the handle rod, and a number of anti-slip lines are formed in the arc surface of the anti-slip sleeve.

[0012] The effect achieved by the above components is that the friction of the arc surface of the handle rod is increased through the anti-slip sleeve, facilitating the user to rotate the handle rod.

[0013] Preferably, an auxiliary structure is provided on the surface of the positioning plate. The auxiliary structure includes a number of auxiliary frames, and the number of auxiliary frames is fixedly connected to the positioning plate. An auxiliary rod is slidably connected to the inner wall of the auxiliary frame. A screw rod is threadedly inserted into one side of the auxiliary frame away from the positioning plate, and the lower end of the auxiliary rod is rotatably connected to a bottom plate.

[0014] The effect achieved by the above components is that when hoisting an item with an uneven surface, operating the auxiliary rod to extend out of the auxiliary frame, and using the auxiliary rod to abut against the surface of the item, so that the positioning plate fits more fully with the item, and further making the limiting effect of the positioning plate better.

[0015] Preferably, an anti-slip groove is formed on one side of the auxiliary rod close to the screw rod, and a number of anti-slip protrusions are fixedly connected to the inner wall of the anti-slip groove.

[0016] The effect achieved by the above components is that the friction between the auxiliary rod and the screw rod is increased through the anti-slip groove, making the limiting effect of the screw rod on the auxiliary rod better.

[0017] Preferably, a soft pad is fixedly connected to the lower surface of the bottom plate, and the soft pad is a rubber pad.

[0018] The effect achieved by the above components is that the wear caused to the item by the bottom plate when contacting the hoisted item is reduced through the soft pad.

[0019] In summary, the beneficial effects of the present utility model are as follows:

[0020] In this utility model, when using a gantry crane to lift a heavy object, the whole crane is controlled to move above the heavy object, then the hook lock of the crane is controlled to lower to the upper surface of the heavy object, the hook lock is operated to connect the heavy object, and then the crane is controlled to retract the hook lock to lift the heavy object. However, the following problems will occur in this operation. When the lifting device uses the hook lock to lift the heavy object and move it, the heavy object is prone to swing under the action of inertia. When the swing amplitude is large, it will cause danger. By setting an adjustment structure, operating the two positioning plates to abut against the upper surface of the lifted item, and using the positioning plates to limit the lifted item, it can effectively prevent the lifted item from swinging, with simple and convenient operation and high safety.

[0021] When lifting a heavy object with an irregular upper surface, the positioning plates do not fit well with the heavy object, and the limiting effect is poor. By setting an auxiliary structure, when lifting an item with an uneven surface, operate the auxiliary rod to extend out of the auxiliary frame, and use the auxiliary rod to abut against the surface of the item, so that the positioning plates fit better with the item, and thus the limiting effect of the positioning plates is better. Brief Description of the Drawings

[0022] Att Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0023] Att Figure 2 is the structure schematic diagram of the adjustment structure of the present utility model;

[0024] Att Figure 3 is the partial structure schematic diagram of the adjustment structure of the present utility model;

[0025] Att Figure 4 is the structure schematic diagram of the auxiliary structure of the present utility model.

[0026] Reference numerals shown in the drawings: 1, support; 2, crossbeam; 3, lifting device; 4, hook lock; 5, adjustment structure; 501, moving frame; 502, pulley; 503, backing plate; 504, support tube; 505, adjusting rod; 506, positioning plate; 507, limiting rod; 508, ring; 509, handlebar; 510, anti-slip sleeve; 6, auxiliary structure; 61, auxiliary frame; 62, auxiliary rod; 63, screw; 64, bottom plate; 65, soft pad; 66, anti-slip groove. Detailed Embodiments

[0027] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0028] Refer to Figure 1As shown in the figure, the utility model provides a technical solution: a gantry crane with an anti-swing structure, which includes two brackets 1. The upper ends of the two brackets 1 are fixedly connected with a cross beam 2. A lifting device 3 is installed on the surface of the cross beam 2. A hook lock 4 is installed on the surface of the lifting device 3. An adjusting structure 5 is provided on the surface of the cross beam 2, and an auxiliary structure 6 is provided on the surface of the positioning plate 506.

[0029] The following specifically describes the specific settings and functions of its adjusting structure 5 and auxiliary structure 6.

[0030] Refer to Figure 2 、 Figure 3 As shown in the figure, in this implementation: The adjusting structure 5 includes a moving frame 501. The moving frame 501 is slidably connected to the cross beam 2. A number of pulleys 502 are rotatably connected to the inner wall of the moving frame 501. The arc surfaces of the number of pulleys 502 are slidably connected to the cross beam 2. Two support pipes 504 are fixedly connected to both sides of the moving frame 501. Adjusting rods 505 are threadedly connected to the inner walls of the two support pipes 504. The lower ends of the adjusting rods 505 are rotatably connected to a positioning plate 506. A limiting rod 507 is fixedly connected to the upper surface of the positioning plate 506. The arc surface of the limiting rod 507 is slidably connected to the rectal tube. Operate the two positioning plates 506 to abut against the upper surface of the hoisted item. Use the positioning plate 506 to limit the hoisted item, which can effectively prevent the hoisted item from swinging. The operation is simple and convenient, and the safety is high. A number of cushion plates 503 are fixedly connected to the inner wall of the moving frame 501 at the position corresponding to the lifting device 3. The cross section of the cushion plate 503 is rectangular. The lifting device 3 drives the moving frame 501 to move along the cross beam 2. Use the cushion plate 503 to protect between the moving frame 501 and the lifting device 3 to reduce damage. A ring 508 is fixedly connected to the arc surface of the adjusting rod 505. A number of round holes are opened on the arc surface of the ring 508. A handle rod 509 is slidably connected to the inner wall of one of the round holes. Operate the handle rod 509 to drive the ring 508 to rotate, and the ring 508 drives the adjusting rod 505 to rotate, which is convenient for the user to rotate the adjusting rod 505. An anti-slip sleeve 510 is fixedly connected to the arc surface of the handle rod 509. A number of anti-slip lines are opened on the arc surface of the anti-slip sleeve 510. Increase the friction of the arc surface of the handle rod 509 through the anti-slip sleeve 510, which is convenient for the user to rotate the handle rod 509.

[0031] Refer to Figure 4As shown in the figure, in this embodiment: The auxiliary structure 6 includes a plurality of auxiliary frames 61. The plurality of auxiliary frames 61 are fixedly connected to the positioning plate 506. An auxiliary rod 62 is slidably connected to the inner wall of the auxiliary frame 61. A screw rod 63 is threadedly inserted into one side of the auxiliary frame 61 away from the positioning plate 506. The lower end of the auxiliary rod 62 is rotatably connected to a bottom plate 64. When hoisting an item with an uneven surface, operate the auxiliary rod 62 to extend out of the auxiliary frame 61, and use the auxiliary rod 62 to abut against the surface of the item, so that the positioning plate 506 fits more fully with the item, and thus the limiting effect of the positioning plate 506 is better. An anti-slip groove 66 is formed on one side of the auxiliary rod 62 close to the screw rod 63. A plurality of anti-slip protrusions are fixedly connected to the inner wall of the anti-slip groove 66. The friction between the auxiliary rod 62 and the screw rod 63 is increased through the anti-slip groove 66, so that the limiting effect of the screw rod 63 on the auxiliary rod 62 is better. A soft pad 65 is fixedly connected to the lower surface of the bottom plate 64. The soft pad 65 is a rubber pad. The soft pad 65 is used to reduce the abrasion caused to the item when the bottom plate 64 contacts the hoisted item.

[0032] Detailed description of the usage method: By setting the adjusting structure 5, rotate the adjusting rod 505. The adjusting rod 505 moves downward along the support tube 504 by means of the thread. The adjusting rod 505 drives the positioning plate 506 to move downward. During this process, the limiting rod 507 always slides along the support tube 504. Continue to rotate the adjusting rod 505 until the positioning plate 506 abuts against the upper surface of the hoisted item. Similarly, adjust the other positioning plate 506. When the hoisting device 3 moves along the cross beam 2, the hoisting device 3 pushes the moving frame 501 to move along the cross beam 2. The pulley 502 on the moving frame 501 slides along the cross beam 2, keeping the positioning plate 506 always located on the upper surface of the hoisted item to limit the hoisted item. Among them, the hoisting device 3 drives the moving frame 501 to move along the cross beam 2, and the cushion plate 503 is used to protect between the moving frame 501 and the hoisting device 3 to reduce damage. The operating handle 509 drives the ring 508 to rotate, and the ring 508 drives the adjusting rod 505 to rotate, which is convenient for the user to rotate the adjusting rod 505. The friction of the arc surface of the handle 509 is increased through the anti-slip sleeve 510, which is convenient for the user to rotate the handle 509.

[0033] By setting the auxiliary structure 6, observe the position where the positioning plate 506 does not fit fully with the upper surface of the hoisted item, and rotate the screw rod 63 at the corresponding position. The screw rod 63 moves away from the auxiliary rod 62 along the auxiliary frame 61 by means of the thread, and move the auxiliary rod 62 downward. The auxiliary rod 62 drives the bottom plate 64 to extend towards the surface of the hoisted item. The bottom plate 64 rotates until it fits the surface of the hoisted item, and then rotate the screw rod 63 in the reverse direction. The screw rod 63 moves in the direction close to the auxiliary rod 62 by means of the thread until the screw rod 63 squeezes and limits the auxiliary rod 62. Among them, the friction between the auxiliary rod 62 and the screw rod 63 is increased through the anti-slip groove 66, so that the limiting effect of the screw rod 63 on the auxiliary rod 62 is better. The abrasion caused to the item when the bottom plate 64 contacts the hoisted item is reduced through the soft pad 65.

Claims

1. A gantry crane with an anti-swing structure, comprising two brackets (1), characterized in that: The upper ends of the two brackets (1) are fixedly connected with a crossbeam (2), a lifting device (3) is installed on the surface of the crossbeam (2), a hook lock (4) is installed on the surface of the lifting device (3), an adjustment structure (5) is provided on the surface of the crossbeam (2), and the adjustment structure (5) includes a moving frame (501), the moving frame (501) is slidably connected to the crossbeam (2), and the inner wall of the moving frame (501) is rotatably connected with a plurality of pulleys (502), and the plurality of pulleys (502) are connected to the inner wall of the moving frame (501). The arc surface of the pulley (502) is slidably connected to the crossbeam (2), and two support tubes (504) are fixedly connected to the two sides of the movable frame (501). The inner walls of the two support tubes (504) are threadedly connected with adjustment rods (505), and the lower end of the adjustment rod (505) is rotatably connected to a positioning plate (506). The upper surface of the positioning plate (506) is fixedly connected to a limiting rod (507), and the arc surface of the limiting rod (507) is slidably connected to the rectal tube.

2. A gantry crane with an anti-swing structure according to claim 1, characterized in that: A plurality of pads (503) are fixedly connected to the inner wall of the movable frame (501) at a position corresponding to the lifting device (3), and the cross section of the pads (503) is rectangular.

3. The gantry crane with an anti-swing structure according to claim 1, characterized in that: The arc surface of the adjusting rod (505) is fixedly connected to a circular ring (508), and the arc surface of the circular ring (508) is provided with a plurality of circular holes, wherein the inner wall of one of the circular holes is slidably connected to a handle bar (509).

4. The gantry crane with an anti-swing structure according to claim 3, characterized in that: The arc surface of the handlebar (509) is fixedly connected with an anti-skid sleeve (510), and the arc surface of the anti-skid sleeve (510) is provided with a plurality of anti-skid grooves.

5. The gantry crane with an anti-swing structure according to claim 1, characterized in that: An auxiliary structure (6) is provided on the surface of the positioning plate (506), and the auxiliary structure (6) includes a plurality of auxiliary frames (61). The plurality of auxiliary frames (61) are fixedly connected to the positioning plate (506), and an auxiliary rod (62) is slidably connected to the inner wall of the auxiliary frame (61). A screw rod (63) is threadedly inserted on the side of the auxiliary frame (61) away from the positioning plate (506), and the lower end of the auxiliary rod (62) is rotatably connected to a bottom plate (64).

6. The gantry crane with an anti-swing structure according to claim 5, characterized in that: An anti-skid groove (66) is provided on one side of the auxiliary rod (62) close to the screw rod (63), and a plurality of anti-skid protrusions are fixedly connected to the inner wall of the anti-skid groove (66).

7. The gantry crane with an anti-swing structure according to claim 5, characterized in that: A soft pad (65) is fixedly connected to the lower surface of the bottom plate (64), and the soft pad (65) is a rubber pad.

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