A new type of traction mechanism gantry crane

Abstract

A novel gantry crane with a traction mechanism is disclosed to address the issue of high cost. It comprises a main beam and a trolley. The main beam is equipped with a first traction guide pulley block, a second traction guide pulley block, and a traction winch. The traction winch is wound with a first traction wire rope, which is fixedly connected to the left end of the trolley via the first traction guide pulley block. A second traction wire rope is fixedly connected to the right end of the trolley and wound around the traction winch via the second traction guide pulley block. The first and second traction wire ropes are wound in opposite directions. The main beam is equipped with a lifting guide pulley block and a lifting winch. Lifting pulley blocks are rotatably connected to the front and rear ends of the lifting device. The lifting winch is wound with two lifting wire ropes, which pass through the lifting guide pulley block, the first guide pulley block, the second guide pulley block, the first lifting pulley block, the lifting pulley block, and the second lifting pulley block, respectively. The right end of each lifting wire rope is fixed to the right end of the main beam.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, and in particular relates to a new type of gantry crane with a traction mechanism. Background Technology

[0002] A gantry crane is a variation of a bridge crane, named for its gate-like structure. Its main characteristic is a bridge frame (main beam) supported on ground rails by two outriggers, forming a portal through which vehicles, trains, or other equipment can pass freely. It is typically used in open-air locations such as freight yards, storage yards, ports, power plants, and shipyards for loading, unloading, handling, and installation of large objects.

[0003] Gantry cranes consist of a main structure, trolley and trolley traveling mechanism, etc. The existing trolley is equipped with hoisting mechanism, traveling mechanism and machine frame, etc. The trolley structure is complex, large in size and heavy, which increases the overall operating cost of the machine and the overall investment in application. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the existing technology, the purpose of this utility model is to provide a new type of gantry crane with a traction mechanism to solve the problem of high cost.

[0005] The technical solution to the technical problem is as follows: It includes a main beam, on which a trolley moves left and right; a first traction guide pulley group is rotatably connected to the left end of the main beam, and a second traction guide pulley group is rotatably connected to the right end of the main beam; a traction winch is installed at the left end of the main beam; a first traction steel wire rope is wound around the traction winch; the first traction steel wire rope is fixedly connected to the left end of the trolley via the first traction guide pulley group; a second traction steel wire rope is fixedly connected to the right end of the trolley; the second traction steel wire rope is wound around the traction winch via the second traction guide pulley group; the first traction steel wire rope and the second traction steel wire rope are wound in opposite directions. The left end of the main beam is rotatably connected to a hoisting guide pulley group symmetrically positioned before and after the first traction guide pulley group. A hoisting winch is installed on the main beam below the traction winch. A support frame is fixed at the upper end of the main beam, and the first and second guide pulley groups corresponding to the hoisting guide pulley groups are rotatably connected to the support frame. The front and rear ends of the trolley are respectively equipped with the first and second hoisting pulley groups. A lifting device is provided below the trolley, and the front and rear ends of the lifting device are rotatably connected to the lifting pulley groups. The hoisting winch is wound with two hoisting wire ropes, which pass through the hoisting guide pulley group, the first guide pulley group, the second guide pulley group, the first hoisting pulley group, the lifting pulley group, and the second hoisting pulley group, respectively. The right end of the hoisting wire rope is fixed to the right end of the main beam.

[0006] Preferably, a first base is fixed to the left end of the main beam, and the traction winch is installed on the first base.

[0007] Preferably, a second base is fixed to the left end of the main beam, and the hoisting winch is installed on the second base.

[0008] Preferably, a first traction roller is installed on the main beam, and the first traction roller adjusts the first traction wire rope.

[0009] Preferably, multiple second traction rollers are installed on the main beam, and the multiple second traction rollers work together to adjust the second traction wire rope.

[0010] Preferably, the main beam is equipped with multiple lifting rollers, which together adjust the lifting wire rope.

[0011] This utility model has the following advantages over traditional equipment: it has a clever structure, with both the traction winch and the hoisting winch installed on the main beam, which reduces the load on the trolley, making the trolley structure simple and compact, occupying little space, achieving low headroom operation, and greatly reducing the operating cost of the trolley, making maintenance convenient and economically efficient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front view of this utility model; Figure 2 yes Figure 1 A magnified schematic diagram of a portion of the image; Figure 3 This is a schematic diagram of the top view of this utility model; Figure 4 yes Figure 3 A magnified schematic diagram of a portion of the image; Figure 5 This is a schematic diagram of the left view of this utility model.

[0013] Reference numerals: 1. Main beam; 2. Trolley; 3. First traction guide pulley block; 4. Second traction guide pulley block; 5. Traction winch; 6. First traction wire rope; 7. Second traction wire rope; 8. Lifting guide pulley block; 9. Lifting winch; 10. Support frame; 11. First guide pulley block; 12. Second guide pulley block; 13. First lifting pulley block; 14. Second lifting pulley block; 15. Lifting device; 16. Lifting pulley block; 17. Lifting wire rope; 18. First traction idler; 19. Second traction idler; 20. Lifting idler. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0015] Depend on Figures 1 to 5A novel gantry crane with a traction mechanism is provided, comprising a main beam 1, a trolley 2 that moves left and right on the main beam 1, a first traction guide pulley group 3 rotatably connected to the left end of the main beam 1, a second traction guide pulley group 4 rotatably connected to the right end of the main beam 1, a traction winch 5 installed on the left end of the main beam 1, a first traction wire rope 6 wound on the traction winch 5, the first traction wire rope 6 being fixedly connected to the left end of the trolley 2 via the first traction guide pulley group 3, a second traction wire rope 7 being fixedly connected to the right end of the trolley 2, the second traction wire rope 7 being wound on the traction winch 5 via the second traction guide pulley group 4, and the first traction wire rope 6 and the second traction wire rope 7 being wound in opposite directions; The left end of the main beam 1 is rotatably connected to a lifting guide pulley group 8 symmetrically arranged with respect to the first traction guide pulley group 3. The main beam 1 is equipped with a lifting winch 9 located below the traction winch 5. A support frame 10 is fixed at the upper end of the main beam 1. The support frame 10 is rotatably connected to a first guide pulley group 11 and a second guide pulley group 12 corresponding to the lifting guide pulley group 8. The front and rear ends of the trolley 2 are respectively provided with a first lifting pulley group 13 and a second lifting pulley group 14. A lifting device 15 is provided below the trolley 2. The front and rear ends of the lifting device 15 are rotatably connected to a lifting pulley group 16. The lifting winch 9 is wound with two lifting wire ropes 17. The lifting wire ropes 17 pass through the lifting guide pulley group 8, the first guide pulley group 11, the second guide pulley group 12, the first lifting pulley group 13, the lifting pulley group 16, and the second lifting pulley group 14. The right end of the lifting wire rope 17 is fixed to the right end of the main beam 1.

[0016] The left end of the main beam 1 is fixed with a first base, and the traction winch 5 is installed on the first base.

[0017] The left end of the main beam 1 is fixed with a second base, and the hoisting winch 9 is installed on the second base.

[0018] To ensure the stability of the first traction wire rope 6, a first traction roller 18 is installed on the main beam 1. The first traction roller 18 adjusts the first traction wire rope 6.

[0019] To ensure the stability of the second traction wire rope 7, multiple second traction rollers 19 are installed on the main beam 1, and the multiple second traction rollers 19 work together to adjust the second traction wire rope 7.

[0020] To ensure the stability of the lifting wire rope 17, the main beam 1 is equipped with multiple lifting rollers 20, which together adjust the lifting wire rope 17.

[0021] In use, to ensure the stability of the trolley 2's left and right movement, the first traction guide pulley group 3 and the second traction guide pulley group 4 are both located in the middle position of the main beam 1 in the front-back direction. When the trolley 2 needs to move on the main beam 1, the traction winch 5 is started. Taking the forward rotation of the traction winch 5 as an example, the first traction steel wire rope 6 and the second traction steel wire rope 7 are wound in opposite directions on the traction winch 5. The traction winch 5 releases the first traction steel wire rope 6, and at the same time, the traction winch 5 retracts the second traction steel wire rope 7. Then, the second traction steel wire rope 7 drives the trolley 2 to move to the right on the main beam 1. When the traction winch 5 reverses, the traction winch 5 retracts the first traction steel wire rope 6, and at the same time, the traction winch 5 releases the second traction steel wire rope 7. Then, the first traction steel wire rope 6 drives the trolley 2 to move to the left on the main beam 1.

[0022] When the lifting device 15 needs to be raised or lowered, the hoisting winch 9 is started. The hoisting winch 9 has two hoisting wire ropes 17 wound around it, with both ropes having the same winding direction and specifications. When the hoisting winch 9 retracts the hoisting wire ropes 17, the ropes slide to the left. The hoisting wire ropes 17 pass through the hoisting guide pulley block 8, the first guide pulley block 11, the second guide pulley block 12, the first hoisting pulley block 13, the lifting pulley block 16, and the second hoisting pulley block 14, thus raising the hoisting device. The rightmost end of the wire rope 17 is fixedly connected to the right end of the main beam 1. Therefore, the lifting wire rope 17 drives the lifting pulley block 16 to move upward. When the two lifting wire ropes 17 are pulled together at the same time, the lifting pulley blocks 16 on both sides of the lifting device 15 move upward at the same time, thereby ensuring that the lifting device 15 moves upward smoothly. Similarly, when the lifting winch 9 releases the lifting wire rope 17, the lifting wire rope 17 slides to the right, and the lifting pulley block 16 and the lifting device 15 move downward, effectively adjusting the overall lifting and lowering movement of the lifting device 15.

[0023] This utility model adopts a brand-new layout of traction wire rope and hoisting wire rope 17. The traction winch 5 and hoisting winch 9 are all installed on the left side of the main beam 1, which reduces the load on the trolley 2, reduces the wear of the trolley 2 when running on the main beam 1, extends the service life of the trolley 2, and reduces the height of the trolley 2, realizing true low headroom operation of the crane, which is safe and reliable.

[0024] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A new type of draw mechanism gantry crane, comprising a main beam (1), a trolley (2) moving left and right on the main beam (1), characterized in that, The left end of the main beam (1) is rotatably connected to the first traction guide pulley group (3), the right end of the main beam (1) is rotatably connected to the second traction guide pulley group (4), the left end of the main beam (1) is equipped with a traction winch (5), the traction winch (5) is wound with the first traction wire rope (6), the first traction wire rope (6) is fixedly connected to the left end of the trolley (2) via the first traction guide pulley group (3), the right end of the trolley (2) is fixedly connected to the second traction wire rope (7), the second traction wire rope (7) is wound on the traction winch (5) via the second traction guide pulley group (4), and the first traction wire rope (6) and the second traction wire rope (7) are wound in opposite directions; The left end of the main beam (1) is rotatably connected to a lifting guide pulley group (8) symmetrical to the first traction guide pulley group (3). The main beam (1) is equipped with a lifting winch (9) located below the traction winch (5). The upper end of the main beam (1) is fixed with a support frame (10). The support frame (10) is rotatably connected to a first guide pulley group (11) and a second guide pulley group (12) corresponding to the lifting guide pulley group (8). The trolley (2) is provided with a first lifting pulley group (13) and a second lifting pulley group at its front and rear ends, respectively. (14) A lifting device (15) is provided below the trolley (2). The lifting device (15) is rotatably connected to the front and rear ends of the lifting pulley group (16). The lifting winch (9) is wound with two lifting wire ropes (17). The lifting wire ropes (17) pass through the lifting guide pulley group (8), the first guide pulley group (11), the second guide pulley group (12), the first lifting pulley group (13), the lifting pulley group (16), and the second lifting pulley group (14). The right end of the lifting wire rope (17) is fixed to the right end of the main beam (1).

2. A new type of draw mechanism gantry crane according to claim 1, characterized in that, The left end of the main beam (1) is fixed with a first base, and the traction winch (5) is installed on the first base.

3. A novel gantry crane with a traction mechanism according to claim 1, characterized in that, The left end of the main beam (1) is fixed with a second base, and the hoisting winch (9) is installed on the second base.

4. A novel gantry crane with a traction mechanism according to claim 1, characterized in that, The main beam (1) is equipped with a first traction roller (18), which adjusts the first traction wire rope (6).

5. A novel gantry crane with a traction mechanism according to claim 1, characterized in that, Multiple second traction rollers (19) are installed on the main beam (1), and the multiple second traction rollers (19) work together to adjust the second traction wire rope (7).

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