Hoisting structure for double-portal crane

Abstract

The utility model discloses a hoisting structure for a double-portal crane, and relates to the technical field of hoisting structures for cranes, in particular to the hoisting structure for the double-portal crane, which comprises a supporting bottom plate, a supporting frame and a cross beam, a connecting plate is fixedly mounted on the supporting frame, and a driving motor is fixedly mounted on the side surface of the cross beam. A mounting groove and a sliding groove are formed in the top of the cross beam, a shaft sleeve is fixedly mounted on the inner side wall of the mounting groove, a threaded rod is rotationally connected to the shaft sleeve, a moving block is in threaded connection to the threaded rod, a mounting plate is fixedly mounted on the top of the moving block, a sliding block is fixedly connected to the bottom of the mounting plate, and a material collecting mechanism is arranged on the sliding block; a lifting box is fixedly connected to the bottom of the moving block, a partition plate is fixedly installed in the lifting box, a lifting mechanism is arranged in the lifting box, a hoisting mechanism is arranged at the bottom of the lifting box, and by arranging a balance plate and an electric telescopic rod, the stability in the hoisting process can be guaranteed to a great extent; and by arranging the cleaning mechanism, sundries in the sliding groove can be removed.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting structures for cranes, in particular to a hoisting structure for double-door cranes. Background Art

[0002] Gantry crane is a variation of bridge crane, also called gantry crane. It is mainly used for loading and unloading of outdoor cargo yards, material yards and bulk cargo. Gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility, and is widely used in port cargo yards. Its metal structure is like a door-shaped frame, with two legs installed under the load-bearing main beam, which can walk directly on the track on the ground, and the two ends of the main beam can have outward cantilever beams. Due to the large size of gantry crane, the operation space is large.

[0003] A balancing hanging structure of a gantry crane disclosed in Chinese utility model patent CN217458496U has the advantages of being compact and ensuring smooth movement, but it still has disadvantages: first, when the balancing hanging structure of the gantry crane is moving, it is easy for stones and other debris to remain in the track, which may cause the crane to shift during movement during actual use, and may easily cause safety hazards; second, the balancing hanging structure of the gantry crane adopts a single set of hooks for lifting and hoisting, which may shake left and right and front and back during movement during actual use. When encountering some objects that are not suitable for shaking, it will not be stable to use and may easily cause problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a lifting structure for a double-door crane, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a lifting structure for a double-gantry crane, comprising a supporting base plate, a supporting frame and a crossbeam, the supporting frame is fixedly provided with a connecting plate, the side of the supporting frame is fixedly provided with a side ladder, the side of the crossbeam is fixedly provided with a driving motor, the top of the crossbeam is provided with a mounting groove and a sliding groove, the inner side wall of the mounting groove is fixedly provided with a shaft sleeve, a threaded rod is rotatably connected to the shaft sleeve, a moving block is threadedly connected to the threaded rod, a mounting plate is fixedly provided on the top of the moving block, a sliding block is fixedly connected to the bottom of the mounting plate, a connecting rod is fixedly connected to the side of the sliding block, a scraper is fixedly connected to the end of the connecting rod, a feeding port is provided on the inner bottom of the sliding groove, a material receiving mechanism is provided at the bottom of the crossbeam, a lifting box is fixedly connected to the bottom of the moving block, a partition is fixedly provided inside the lifting box, a lifting mechanism is provided inside the lifting box, and a lifting mechanism is provided at the bottom of the lifting box.

[0008] Optionally, the support base plate and the support frame are both symmetrically arranged on the left and right sides, the support frame is fixedly installed on the top of the support base plate, and the side ladder is fixedly installed on the left and right side surfaces of the support frame.

[0009] Optionally, the sliding grooves are two front and rear sliding grooves symmetrically opened on the front and rear sides of the mounting groove, the length of the sliding groove is smaller than the length of the mounting groove, and the sliding block is slidably connected inside the sliding groove.

[0010] Optionally, the connecting rod and the scraper are symmetrically arranged on the left and right, the feed opening is opened at the ends of both ends of the sliding groove, the scraper is arc-shaped, and the diameter of the scraper is larger than the diameter of the feed opening.

[0011] Optionally, the material receiving mechanism includes an installation box, a pull-out drawer and a handle, the installation box is fixedly installed at the bottom of the beam, the pull-out drawer is slidably connected to the inside of the installation box, the handle is fixedly installed on the front of the pull-out drawer, and the installation box is located directly below the discharge port.

[0012] Optionally, the partition is two pieces fixedly mounted on the inner wall of the lifting box, and the lifting mechanism includes a rotating motor, a rotating shaft, a reel roller and a wire rope. The rotating motor is fixedly mounted on the side of the partition, the rotating shaft is rotatably connected between the two partitions, the reel roller is fixedly mounted on the outside of the rotating shaft, the wire rope is rotatably connected to the reel roller, and the output end of the rotating motor is fixedly connected to the end of the rotating shaft.

[0013] Optionally, the lifting mechanism includes an electric telescopic rod, a balance plate, a lifting rod and a hook, the electric telescopic rod is two on the left and right and is symmetrically fixedly installed at the bottom of the lifting box, the balance plate is fixedly connected to the bottom end of the wire rope, the balance plate is slidably connected to the electric telescopic rod, the lifting rod is fixedly connected to the bottom of the balance plate, and the hook is fixedly installed on the bottom end of the lifting rod.

[0014] (III) Beneficial effects

[0015] The utility model provides a lifting structure for a double-door crane, which has the following beneficial effects:

[0016] 1. The lifting structure for the double-gantry crane has the effect of avoiding shaking during lifting by setting a balance plate. By coordinating the rotating motor and the reel roller, the lifting mechanism at the bottom can be stretched upward during use, thereby achieving a balanced lifting effect and achieving the purpose of improving the stability of use.

[0017] 2. The lifting structure of the double-gantry crane has the effect of facilitating the cleaning of the installation box through the setting of the side ladder. Through the coordinated setting of the connecting rod and the scraper, the sundries and pebbles on the road can be cleared during the movement, thereby achieving the effect of smooth movement and achieving the purpose of improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0022] Figure 5 It is a schematic diagram of the structure of the hook mechanism of the utility model.

[0023] In the figure: 1. Support base plate; 2. Support frame; 3. Connecting plate; 4. Crossbeam; 5. Side ladder; 6. Drive motor; 7. Mounting groove; 8. Bushing; 9. Threaded rod; 10. Moving block; 11. Mounting plate; 12. Sliding groove; 13. Sliding block; 14. Connecting rod; 15. Scraper; 16. Feeding port; 17. Mounting box; 18. Drawer; 19. Handle; 20. Lifting box; 21. Partition; 22. Rotating motor; 23. Rotating shaft; 24. Reel roller; 25. Wire rope; 26. Electric telescopic rod; 27. Balance board; 28. Lifting rod; 29. ​​Hook. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Embodiment 1:

[0026] See also Figures 1 to 5The utility model provides a technical solution: a lifting structure for a double-door crane, including a supporting base plate 1, a supporting frame 2 and a crossbeam 4, a connecting plate 3 is fixedly installed on the supporting frame 2, a side ladder 5 is fixedly installed on the side of the supporting frame 2, the supporting base plate 1 and the supporting frame 2 are both symmetrically arranged on the left and right, the supporting frame 2 is fixedly installed on the top of the supporting base plate 1, and the side ladder 5 is fixedly installed on the left and right side surfaces of the supporting frame 2, the arrangement of the side ladder 5 makes it more convenient to clean the installation box 17, and it is also convenient to overhaul other mechanisms, a driving motor 6 is fixedly installed on the side of the crossbeam 4, and the crossbeam 4 The top of the mounting groove 7 and the sliding groove 12 are provided. The sliding groove 12 is symmetrically provided on the front and rear sides of the mounting groove 7. The length of the sliding groove 12 is less than the length of the mounting groove 7. The sliding block 13 is slidably connected to the inside of the sliding groove 12. The setting of the sliding groove 12 and the sliding block 13 makes it more stable when moving. A shaft sleeve 8 is fixedly installed on the inner side wall of the mounting groove 7. A threaded rod 9 is rotatably connected to the shaft sleeve 8. A moving block 10 is threadedly connected to the threaded rod 9. A mounting plate 11 is fixedly installed on the top of the moving block 10. The sliding block 13 is fixedly connected to the bottom of the mounting plate 11. The moving block The bottom of the lifting box 10 is fixedly connected with a lifting box 20, and a partition 21 is fixedly installed inside the lifting box 20. A lifting mechanism is arranged inside the lifting box 20. The partition 21 is two pieces fixedly installed on the inner wall of the lifting box 20. The lifting mechanism includes a rotating motor 22, a rotating shaft 23, a reel roller 24 and a wire rope 25. The rotating motor 22 is fixedly installed on the side of the partition 21, and the rotating shaft 23 is rotatably connected between the two partitions 21. The reel roller 24 is fixedly installed on the outside of the rotating shaft 23, and the wire rope 25 is rotatably connected to the reel roller 24. The output end of the rotating motor 22 is connected to the end of the rotating shaft 23. Fixedly connected, a lifting mechanism is provided at the bottom of the lifting box 20, and the lifting mechanism includes an electric telescopic rod 26, a balance plate 27, a lifting rod 28 and a hook 29. The electric telescopic rod 26 is two on the left and right and is symmetrically fixedly installed at the bottom of the lifting box 20, the balance plate 27 is fixedly connected to the bottom end of the wire rope 25, the balance plate 27 is slidably connected to the electric telescopic rod 26, the lifting rod 28 is fixedly connected to the bottom of the balance plate 27, and the hook 29 is fixedly installed on the bottom end of the lifting rod 28. The setting of the lifting mechanism makes the lifting more stable, reduces the shaking during the movement, and is safer.

[0027] When using the lifting structure of the double-gantry crane, first start the rotating motor 22 to drive the rotating shaft 23 and the reel roller 24 to rotate, release the wire rope 25, so that the balance plate 27 and the hook 29 move downward, and when the height is appropriate, stop moving, hang the object on the hook 29, and then lift the hook 29 upward to lift the object. The electric telescopic rod 26 can extend when the balance plate 27 moves downward and shorten when it rises, ensuring that the position of the balance plate 27 can be located. Then start the driving motor 6 to drive the threaded rod 9 to rotate, thereby prompting the moving block 10 to move left and right on the threaded rod 9. At the same time, the sliding block 13 will also slide inside the sliding groove 12. After reaching the specified position, the rotating motor 22 can be driven to put down the hoisted objects. The setting of the balance plate 27 and the electric telescopic rod 26 can effectively reduce the shaking during the lifting and moving process, which is very convenient to use and simple to operate.

[0028] Embodiment 2:

[0029] See also Figures 1 to 5 The utility model provides a technical solution: a lifting structure for a double-door crane, a side of a sliding block 13 is fixedly connected with a connecting rod 14, an end of the connecting rod 14 is fixedly connected with a scraper 15, a feeding port 16 is provided on the inner bottom of the sliding groove 12, the connecting rod 14 and the scraper 15 are symmetrically arranged on the left and right, the feeding port 16 is provided at the end of both ends of the sliding groove 12, the scraper 15 is arc-shaped, the diameter of the scraper 15 is larger than the diameter of the feeding port 16, and the scraper 15 cooperates with the setting of the feeding port 16 to slide the sliding block 13 during movement. The pebbles and other debris inside the groove 12 are cleaned up to ensure the smooth movement. A material collecting mechanism is provided at the bottom of the beam 4, and the material collecting mechanism includes an installation box 17, a pull-out drawer 18 and a handle 19. The installation box 17 is fixedly installed at the bottom of the beam 4, and the pull-out drawer 18 is slidably connected to the inside of the installation box 17. The handle 19 is fixedly installed on the front of the pull-out drawer 18. The installation box 17 is located directly below the discharge port 16. The setting of the material collecting mechanism can collect the debris cleaned out from the inside of the sliding groove 12, which is convenient for subsequent processing.

[0030] When using the lifting structure of the double-gantry crane, when the driving motor 6 is started to prompt the moving block 10 to drive the mounting plate 11 to move, the mounting plate 11 will slide inside the sliding groove 12 through the sliding block 13 at the bottom. On the one hand, it can ensure the stable shape during movement, and on the other hand, when the sliding block 13 moves, it will drive the scraper 15 to move through the connecting rod 14. The arc-shaped scraper 15 will clean the sliding block 13 on the way forward, ensuring that the movement is not affected by debris. Finally, the debris inside the sliding groove 12 will be pushed to the discharge port 16 with the movement of the scraper 15 to discharge the sliding groove 12, and finally sink into the drawer 18 inside the installation box 17. If too much debris is accumulated, the side ladder 5 can be climbed up to pull the handle 19 to pull out the drawer 18 for cleaning the inside. It is very convenient to use and has high practicality.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting structure for a double-gantry crane, comprising a supporting base plate (1), a supporting frame (2) and a crossbeam (4), characterized in that: A connecting plate (3) is fixedly mounted on the support frame (2), a side ladder (5) is fixedly mounted on the side of the support frame (2), a driving motor (6) is fixedly mounted on the side of the crossbeam (4), a mounting groove (7) and a sliding groove (12) are provided on the top of the crossbeam (4), a shaft sleeve (8) is fixedly mounted on the inner side wall of the mounting groove (7), a threaded rod (9) is rotatably connected to the shaft sleeve (8), a moving block (10) is threadedly connected to the threaded rod (9), a mounting plate (11) is fixedly mounted on the top of the moving block (10), and the mounting plate (11) The bottom of the sliding block (13) is fixedly connected to a sliding block (13), the side of the sliding block (13) is fixedly connected to a connecting rod (14), the end of the connecting rod (14) is fixedly connected to a scraper (15), the inner bottom of the sliding groove (12) is provided with a discharge port (16), the bottom of the cross beam (4) is provided with a material receiving mechanism, the bottom of the moving block (10) is fixedly connected to a lifting box (20), the interior of the lifting box (20) is fixedly installed with a partition (21), the interior of the lifting box (20) is provided with a lifting mechanism, and the bottom of the lifting box (20) is provided with a lifting mechanism.

2. A lifting structure for a double-gantry crane according to claim 1, characterized in that: The support base plate (1) and the support frame (2) are both symmetrically arranged on the left and right sides; the support frame (2) is fixedly mounted on the top of the support base plate (1); and the side ladder (5) is fixedly mounted on both left and right side surfaces of the support frame (2).

3. A lifting structure for a double-gantry crane according to claim 1, characterized in that: The sliding grooves (12) are two symmetrically arranged on the front and rear sides of the mounting groove (7), the length of the sliding groove (12) is smaller than the length of the mounting groove (7), and the sliding block (13) is slidably connected inside the sliding groove (12).

4. A lifting structure for a double-gantry crane according to claim 1, characterized in that: The connecting rod (14) and the scraper (15) are symmetrically arranged on the left and right sides, the feed opening (16) is opened at the ends of both ends of the sliding groove (12), the scraper (15) is arc-shaped, and the diameter of the scraper (15) is larger than the diameter of the feed opening (16).

5. A lifting structure for a double-gantry crane according to claim 1, characterized in that: The material receiving mechanism comprises an installation box (17), a drawer (18) and a handle (19); the installation box (17) is fixedly installed at the bottom of the cross beam (4); the drawer (18) is slidably connected to the inside of the installation box (17); the handle (19) is fixedly installed on the front of the drawer (18); and the installation box (17) is located directly below the material discharge port (16).

6. A lifting structure for a double-gantry crane according to claim 1, characterized in that: The partition (21) is composed of two pieces fixedly mounted on the inner wall of the lifting box (20); the lifting mechanism comprises a rotating motor (22), a rotating shaft (23), a reel roller (24) and a steel wire rope (25); the rotating motor (22) is fixedly mounted on the side of the partition (21); the rotating shaft (23) is rotatably connected between the two partitions (21); the reel roller (24) is fixedly mounted on the outside of the rotating shaft (23); the steel wire rope (25) is rotatably connected to the reel roller (24); and the output end of the rotating motor (22) is fixedly connected to the end of the rotating shaft (23).

7. A lifting structure for a double-gantry crane according to claim 1, characterized in that: The lifting mechanism includes an electric telescopic rod (26), a balance plate (27), a lifting rod (28) and a hook (29), wherein the electric telescopic rod (26) is composed of two left and right ones symmetrically fixedly mounted at the bottom of the lifting box (20), the balance plate (27) is fixedly connected to the bottom end of the steel wire rope (25), the balance plate (27) is slidably connected to the electric telescopic rod (26), the lifting rod (28) is fixedly connected to the bottom of the balance plate (27), and the hook (29) is fixedly mounted on the bottom end of the lifting rod (28).

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