Deviation rectifying mechanism of gantry crane

Abstract

The utility model relates to the field of gantry cranes, and discloses a deviation rectifying mechanism of a gantry crane, which comprises a support base for bottom support, the top end of the support base is fixedly connected with a plurality of limit switches, and the top end of the support base is fixedly connected with a return motor on the inner sides of the limit switches. The output end of the aligning motor is fixedly connected with a rotating sleeve, a rotating plate is arranged over the supporting base, a deviation rectifying notch is formed in the front side of the interior of the rotating plate, a deviation rectifying pull rod is inserted into the deviation rectifying notch in a penetrating mode, the top end of the rotating sleeve is fixedly connected with an overturning frame, and an adjusting limiting assembly is installed in the overturning frame. And a contact return assembly is installed at the bottom end of the overturning frame so that deviation can be corrected in time. According to the utility model, the deviation correction of the device for different limit angles is improved, the adjustment of the device for different cargoes is improved, and the transportation efficiency of the cargoes is ensured.

Description

Technical Field

[0001] This utility model relates to the field of gantry cranes, and more particularly to a correction mechanism for a gantry crane. Background Technology

[0002] A gantry crane is a large lifting device consisting of a portal frame (with outriggers on both sides) spanning the working area and a movable trolley. Its key feature is that it moves laterally by traveling along ground tracks with its outriggers, while the trolley moves longitudinally along the main beam. Combined with the lifting and lowering of the hook, it completes the transport of heavy objects in three-dimensional space. Commonly used in open-air locations such as ports, shipyards, and railway freight yards, it is suitable for lifting large cargo such as containers and steel, and boasts advantages such as large span, high load capacity, and wide operating range.

[0003] During the operation of a gantry crane, the center of gravity of the load may shift due to the weight of the object itself or the effect of wind, causing lateral force to cause the entire machine to shift. The correction mechanism limits this shift, but because the track and the goods are different, the limit angle for correction is different, and a single correction angle affects the efficiency of the goods operation. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a correction mechanism for a gantry crane, thereby improving the device's ability to adjust to different cargo.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A correction mechanism for a gantry crane includes a support base for bottom support. Multiple limit switches are fixedly connected to the top of the support base. A return motor is fixedly connected to the top of the support base inside the limit switches. A rotating sleeve is fixedly connected to the output end of the return motor. A rotating plate is positioned directly above the support base. A correction slot is formed on the front side of the interior of the rotating plate. A correction rod is inserted inside the correction slot. A flip frame is fixedly connected to the top of the rotating sleeve. An adjustable limit component is installed inside the flip frame to achieve correction limits at different angles. A contact return component is installed at the bottom of the flip frame to achieve timely correction of deviation.

[0007] Furthermore, the contact return assembly includes a return contact located on the outer side of the top of the return motor, and a correction contact is fixedly connected to the inner side of the top of the return motor. The correction contact and the return contact are located on the same circumferential arc. A positioning contact is fixedly connected to the bottom of the flip frame.

[0008] Furthermore, the adjustment and limiting assembly includes an adjustment rod that slides inside the flip frame. The inner side of the adjustment rod is rotatably connected to a limiting roller. The adjustment rod has multiple positioning slots evenly opened inside. The inner side of the limiting roller is respectively attached to the side of the rotating plate.

[0009] Furthermore, a positioning insertion post is inserted inside the flip frame, and the lower outer side of the positioning insertion post penetrates the inside of the positioning slot and is inserted inside the rotating sleeve.

[0010] Furthermore, a positioning support column is fixedly connected to the top center of the support base, and the top protrusion of the positioning support column is rotatably connected to the center of the rotating plate. A limit ring is fixedly connected to the outside of the positioning support column.

[0011] Furthermore, the bottom end of the positioning support column is fixedly connected with a through bolt, and the outside of the through bolt passes through the bottom end of the support base and is threadedly connected with a fixing nut.

[0012] Furthermore, the correction contact is electrically connected to the limit switch, and the return contact is electrically connected to the return motor.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the distance of the limiting roller is adjusted by extending and retracting the adjusting rod, so that when the rotating plate rotates, the flipping frame is driven to rotate. When the angle of the flipping frame rotation touches the limit position, the flipping angle of the rotating plate itself is further increased, which improves the device's correction for different limit angles, improves the device's adjustment for different goods, and ensures the efficiency of goods transportation. Attached Figure Description

[0015] Figure 1 This is an overall view of the correction mechanism for a gantry crane proposed in this utility model;

[0016] Figure 2 A diagram showing the positioning support column mechanism of the correction mechanism for a gantry crane proposed in this utility model;

[0017] Figure 3 This utility model provides an internal view of the flipping frame of a gantry crane's correction mechanism.

[0018] Figure 4 A diagram of the return motor mechanism of the correction mechanism of a gantry crane proposed in this utility model;

[0019] Figure 5 The bottom view of the flipping frame of the correction mechanism for a gantry crane proposed in this utility model.

[0020] Legend:

[0021] 1. Support base; 2. Rotating plate; 3. Correction rod; 4. Correction slot; 5. Limiting roller; 6. Adjusting rod; 7. Flip frame; 8. Return contact; 9. Limiting ring; 10. Positioning support column; 11. Return motor; 12. Limit switch; 13. Positioning insertion column; 14. Fixing nut; 15. Insert bolt; 16. Rotating sleeve; 17. Positioning contact; 18. Positioning slot; 19. Correction contact. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3 This utility model provides an embodiment of a gantry crane's correction mechanism, comprising a support base 1 for bottom support, a plurality of limit switches 12 fixedly connected to the top of the support base 1, a return motor 11 fixedly connected to the top of the support base 1 inside the limit switches 12, a rotating sleeve 16 fixedly connected to the output end of the return motor 11, a rotating plate 2 disposed directly above the support base 1, a correction slot 4 opened on the front side of the interior of the rotating plate 2, a correction tie rod 3 inserted inside the correction slot 4, a flip frame 7 fixedly connected to the top of the rotating sleeve 16, an adjusting limit component installed inside the flip frame 7 for achieving correction limit at different angles, a contact return component installed at the bottom of the flip frame 7 for timely correction of offset, and the adjusting limit component includes... The system includes an adjusting rod 6 that slides inside the flip frame 7. Each adjusting rod 6 has a limiting roller 5 rotatably connected to its inner side. The adjusting rod 6 has multiple positioning slots 18 evenly distributed inside. The inner sides of the limiting rollers 5 are respectively attached to the sides of the rotating plate 2. A positioning insertion post 13 is inserted inside the flip frame 7. The lower outer side of the positioning insertion post 13 passes through the inside of the positioning slot 18 and is inserted into the inside of the rotating sleeve 16. A positioning support post 10 is fixedly connected to the top center of the support base 1. The top protrusion of the positioning support post 10 is rotatably connected to the center of the rotating plate 2. A limiting ring 9 is fixedly connected to the outside of the positioning support post 10. An insertion bolt 15 is fixedly connected to the bottom end of the positioning support post 10. The outside of the insertion bolt 15 passes through the bottom end of the support base 1 and is threaded with a fixing nut 14.

[0024] When lifting and transporting goods of different weights, the length of the adjusting rod 6 needs to be adjusted according to the weight of the goods: First, pull out the positioning insertion post 13 upward so that the adjusting rod 6 can slide inward; after the length is determined, pass the positioning insertion post 13 through the slot in the middle of the flipping frame 7 and insert it into the positioning slot 18 of the rotating sleeve 16 to fix the length of the adjusting rod 6. The extension of the adjusting rod 6 will increase the limit rotation angle of the rotating plate 2. When the crane deviates, the deviation force will be transmitted to the correction tie rod 3, which will drive the rotating plate 2 to rotate. At this time, the diagonal limit rollers 5 will contact the side of the rotating plate 2 and push the flipping frame 7 to rotate, thereby dynamically adapting to the load changes of different goods and ensuring the stability and efficiency of the transportation process.

[0025] Reference Figure 4 and Figure 5 The return contact assembly includes a return contact 8 located on the outer side of the top of the return motor 11, and a correction contact 19 fixedly connected to the inner side of the top of the return motor 11. The correction contact 19 and the return contact 8 are located on the same circumferential arc. The bottom of the flip frame 7 is fixedly connected to a positioning contact 17. The correction contact 19 is electrically connected to the limit switch 12, and the return contact 8 is electrically connected to the return motor 11.

[0026] When the positioning contact 17 at the bottom of the flip frame 7 contacts the correction contact 19 during rotation, the limit switch 12 detects that the rotating plate 2 has reached the maximum deflection angle, and then triggers the return motor 11 to start. The motor drives the rotating sleeve 16 to rotate in the opposite direction, and applies inward pressing force to the rotating plate 2 through the limit roller 5, causing it to return to the center. When the positioning contact 17 contacts the return contact 8, the system automatically cuts off the power to the return motor 11, completes the precise reset of the rotating plate 2, and ensures that the crane returns to a balanced state.

[0027] Working principle: When lifting and transporting a batch of goods of different weights, the length of the adjusting rod 6 is adjusted according to the weight of the goods. At this time, the positioning insertion post 13 is pulled out to the upward side, thereby sliding the adjusting rod 6 inward. After determining the length, the positioning insertion post 13 is inserted into the rotating sleeve 16 through the slot in the middle of the flip frame 7 and through the positioning slot 18, thereby limiting the length of the adjusting rod 6. When the length of the adjusting rod 6 increases, the limit angle of rotation of the rotating plate 2 increases. When the crane deviates, the force generated by the deviation is transmitted to the correction tie rod 3, which deviates from the original position. As the rotating plate 2 rotates, the diagonal limiting rollers 5 simultaneously contact the side of the rotating plate 2, causing the flipping frame 7 to rotate. When the positioning contact 17 at the bottom of the flipping frame 7 rotates in a circular motion, and the bottom of the positioning contact 17 contacts the correction contact 19, the limit switch 12 detects that the limit angle has been reached and sends a signal to the return motor 11, thereby turning the rotating sleeve 16 in the opposite direction. The limiting rollers 5 exert an inward squeezing force on the rotating plate 2. When the positioning contact 17 contacts the return contact 8, the rotation of the return motor 11 stops, and the deflection angle of the rotating plate 2 is returned to the correct position.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A correction mechanism for a gantry crane, characterized in that, The system includes a support base (1) for bottom support, with multiple limit switches (12) fixedly connected to the top of the support base (1). A return motor (11) is fixedly connected to the top of the support base (1) inside the limit switches (12). A rotating sleeve (16) is fixedly connected to the output end of the return motor (11). A rotating plate (2) is provided directly above the support base (1). A correction slot (4) is provided on the front side of the interior of the rotating plate (2). A correction pull rod (3) is inserted inside the correction slot (4). A flip frame (7) is fixedly connected to the top of the rotating sleeve (16). An adjustment limit component is installed inside the flip frame (7) to achieve correction limit at different angles. A contact return component is installed at the bottom of the flip frame (7) to achieve timely correction of the offset.

2. The correction mechanism for a gantry crane according to claim 1, characterized in that: The contact return assembly includes a return contact (8) located on the outer side of the top of the return motor (11). The inner side of the top of the return motor (11) is fixedly connected to a correction contact (19). The correction contact (19) and the return contact (8) are located on the same circumferential arc. The bottom end of the flip frame (7) is fixedly connected to a positioning contact (17).

3. The correction mechanism for a gantry crane according to claim 1, characterized in that: The adjustment and limiting assembly includes an adjustment rod (6) that slides inside the flip frame (7). The inner side of the adjustment rod (6) is rotatably connected to a limiting roller (5). The adjustment rod (6) has a plurality of positioning slots (18) evenly opened inside. The inner side of the limiting roller (5) is respectively attached to the side of the rotating plate (2).

4. The correction mechanism for a gantry crane according to claim 1, characterized in that: The interior of the flip frame (7) is interspersed with a positioning insertion post (13), the lower outer side of which penetrates the interior of the positioning slot (18) and is inserted into the interior of the rotating sleeve (16).

5. The correction mechanism for a gantry crane according to claim 1, characterized in that: A positioning support column (10) is fixedly connected to the top center of the support base (1). The top protrusion of the positioning support column (10) is rotatably connected to the center of the rotating plate (2). A limit ring (9) is fixedly connected to the outside of the positioning support column (10).

6. The correction mechanism for a gantry crane according to claim 5, characterized in that: The bottom end of the positioning support column (10) is fixedly connected with a through bolt (15), and the outside of the through bolt (15) passes through the bottom end of the support base (1) and is threadedly connected with a fixing nut (14).

7. The correction mechanism for a gantry crane according to claim 2, characterized in that: The correction contact (19) is electrically connected to the limit switch (12), and the return contact (8) is electrically connected to the return motor (11).

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