Lifting hook spacing adjusting device for four-rope RTG

Abstract

The utility model discloses a lifting hook spacing adjusting device for a four-rope RTG, which comprises a crane supporting mechanism, a moving mechanism, a hoisting mechanism and a spacing adjusting mechanism, the moving mechanism is arranged at the top of the crane supporting mechanism, the hoisting mechanism is arranged at the bottom end of a moving block in the moving mechanism, and the spacing adjusting mechanism is arranged at the bottom end of the moving block. The distance adjusting mechanism is arranged at the bottom end of the lifting mechanism and comprises a driving assembly, a fixing frame and a lifting hook, the top end of the fixing frame and the lifting mechanism are fixedly installed, the driving assembly is arranged on the lower portion of the interior of the fixing frame in a sliding mode, and the top end of the lifting hook and the bottom face of a fixing plate are fixedly installed through a steel wire rope. According to the novel lifting hook, the stabilizing assemblies are symmetrically arranged on the two sides of the fixing plate, the lifting hook fixed at the bottom end of the fixing plate through the steel wire rope is clamped and fixed through the stabilizing assemblies when the distance is adjusted, and therefore it is guaranteed that the lifting hook is prevented from shaking when the distance is adjusted, and a worker can use the lifting hook conveniently.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, specifically to a hook spacing adjustment device for a four-rope RTG. Background Technology

[0002] RTG, rubber tire gantry crane, is a type of crane generally used for transferring containers in port yards.

[0003] Four-rope RTG refers to a fully automatic four-rope tire-mounted crane, a specialized crane designed for container yards. It is a dedicated machine for transferring containers in port yards. It is suitable not only for container terminal yards but also for dedicated container yards, for loading and unloading standard containers.

[0004] However, in the existing technology, the hook spacing in a four-rope RTG cannot be adjusted. At the same time, when adjusting the hook spacing, the hooks shake violently. After the adjustment is completed, the worker has to wait for the hook shaking amplitude to decrease before it can be used, which affects the work efficiency. Therefore, a hook spacing adjustment device for a four-rope RTG is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a hook spacing adjustment device for a four-rope RTG. By symmetrically arranging stabilizing components on both sides of the fixed plate, the hooks fixed to the bottom of the fixed plate by steel wire ropes are clamped and fixed by the stabilizing components when adjusting the spacing, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hook spacing adjustment device for a four-rope RTG includes a crane support mechanism, a moving mechanism, a lifting mechanism, and a spacing adjustment mechanism. The moving mechanism is located at the top of the crane support mechanism, the lifting mechanism is located at the bottom of a moving block inside the moving mechanism, and the spacing adjustment mechanism is located at the bottom of the lifting mechanism.

[0008] The spacing adjustment mechanism includes a drive assembly, a fixed frame, and a hook. The top of the fixed frame is fixedly installed with the lifting mechanism. The drive assembly is slidably disposed inside the lower part of the fixed frame. The top of the hook is fixedly installed with the bottom surface of the fixed plate via a steel wire rope. The fixed plate is fixedly installed with the drive assembly.

[0009] The fixing plate is also provided with stabilizing components on both sides for fixing the hook.

[0010] Preferably, the stabilizing component includes a side top plate, which is respectively disposed above the side wall of the fixed plate. The bottom surface of each side top plate is provided with a telescopic rod, and the working end of the telescopic rod is fixedly installed to the lower side plate.

[0011] The two sets of lower side plates are also provided with clamping modules for fixing the hooks on their opposite side walls.

[0012] Preferably, the clamping module includes a push rod, and a side frame is provided below the opposing side walls of the two sets of lower side plates. The inner side wall of the side frame is fixedly installed with the push rod, and the working end of the push rod passes through the side wall of the lower side plate and is fixedly installed with the clamping block. The opposing side walls of the two sets of clamping blocks respectively abut against the outer arc surface of the hook.

[0013] Preferably, the two side walls of the fixing plate are respectively provided with sliding grooves, and protrusions are provided on the upper side walls of the two sets of lower side plates facing each other, and the protrusions are slidably connected to the inner wall of the sliding groove.

[0014] Preferably, the two sets of lower side plates have opposite sidewalls located on the outer side of the push rod working end, and a storage groove is provided for storing the clamping block.

[0015] Preferably, the drive assembly includes a rotary motor, a first toothed rod, and a second toothed rod. The bottom surface of the fixed frame has a groove. The first toothed rod and the second toothed rod are rotatably disposed inside the groove. One end of the first toothed rod passes through the side wall of the fixed frame and is keyed to the output shaft of the rotary motor, which is fixedly installed on the side wall of the fixed frame. The adjacent ends of the first toothed rod and the second toothed rod are fixedly installed by a flange. The flange is installed on the side wall of the partition. The partition is fixedly installed in the middle of the inner wall of the groove. The outer arc surfaces of the first toothed rod and the second toothed rod are respectively threaded with movable plates.

[0016] Preferably, the inner walls of both sides of the groove are provided with limiting grooves, the two side walls of the movable plate are slidably connected to the inner walls of the limiting grooves, and the bottom surface of the movable plate is fixedly installed to the top surface of the fixed plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model features stabilizing components symmetrically arranged on both sides of a fixed plate. These stabilizing components clamp and fix the hook, which is secured to the bottom of the fixed plate by a steel wire rope, during the adjustment of the spacing. This ensures that the hook does not sway during the adjustment of the spacing, making it easier for workers to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2This is a schematic diagram of the spacing adjustment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the slide groove position structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the stabilizing component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the drive component structure of this utility model.

[0024] In the diagram: 1. Crane support mechanism; 2. Moving mechanism; 3. Lifting mechanism; 4. Spacing adjustment mechanism; 5. Fixed frame; 6. Drive assembly; 7. Stabilizing assembly; 8. Fixed plate; 9. Side top plate; 10. Telescopic rod; 11. Lower side plate; 12. Slide groove; 13. Protrusion; 14. Push rod; 15. Side frame; 16. Clamping block; 17. Wire rope; 18. Hook; 19. Storage slot; 20. Rotary motor; 21. Groove; 22. Partition plate; 23. First toothed rod; 24. Second toothed rod; 25. Moving plate; 26. Limiting groove. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 This utility model provides a technical solution:

[0027] A hook spacing adjustment device for a four-rope RTG includes a crane support mechanism 1, a moving mechanism 2, a lifting mechanism 3, and a spacing adjustment mechanism 4. The moving mechanism 2 is located on the top of the crane support mechanism 1, the lifting mechanism 3 is located at the bottom of the moving block inside the moving mechanism 2, and the spacing adjustment mechanism 4 is located at the bottom of the lifting mechanism 3.

[0028] The spacing adjustment mechanism 4 includes a drive assembly 6, a fixed frame 5, and a hook 18. The top of the fixed frame 5 is fixedly installed with the lifting mechanism 3. The drive assembly 6 is slidably disposed inside the lower part of the fixed frame 5. The top of the hook 18 is fixedly installed with the bottom surface of the fixed plate 8 via a steel wire rope 17. The fixed plate 8 is fixedly installed with the drive assembly 6.

[0029] The two sides of the fixing plate 8 are also provided with stabilizing components 7 for fixing the hook 18.

[0030] The drive component 6 is set to move the hooks 18 at the bottom of the fixed plate 8 to adjust the spacing between the hooks 18. At the same time, stabilizing components 7 are set on both sides of the fixed plate 8 to fix the hooks 18, so as to prevent the hooks 18 from shaking when adjusting the spacing, thus affecting the normal use of the hooks 18.

[0031] The stabilizing component includes a side top plate 9, which is respectively disposed above the side wall of the fixed plate 8. The bottom surface of each side top plate 9 is provided with a telescopic rod 10, and the working end of the telescopic rod 10 is fixedly installed to the lower side plate 11.

[0032] The two sets of lower side plates 11 are also provided with clamping modules for fixing the hooks 18 on their opposite side walls.

[0033] The clamping module includes a push rod 14. Side frames 15 are provided below the opposite side walls of the two sets of lower side plates 11. The inner side wall of the side frame 15 is fixedly installed with the push rod 14. The working end of the push rod 14 passes through the side wall of the lower side plate 11 and is fixedly installed with the clamping block 16. The opposite side walls of the two sets of clamping blocks 16 respectively abut against the outer arc surface of the hook 18.

[0034] By providing side top plates 9 on both sides of the fixed plate 8, and providing telescopic rods 10 on the bottom surface of each side top plate 9, the working ends of the telescopic rods 10 are fixedly installed with the lower side plate 11. The lower side wall of the lower side plate 11 is also provided with a clamping module for fixing the hook 18. When it is necessary to adjust the spacing of the hook 18, the lower side plate 11 is lowered by activating the telescopic rods 10, so that the clamping blocks 16 are lowered to both sides of the hook 18. Then, the push rod 14 is activated to push the clamping blocks 16 to clamp and fix the hook 18, thereby ensuring the stability of the hook 18.

[0035] The two side walls of the fixed plate 8 are respectively provided with sliding grooves 12, and the upper side walls of the two sets of lower side plates 11 are provided with protrusions 13, which are slidably connected to the inner wall of the sliding grooves 12.

[0036] Furthermore, sliding grooves 12 are provided on both sides of the fixed plate 8. The inner wall of the sliding groove 12 is slidably connected to the protrusions 13 provided on the opposite side walls of the two sets of lower side plates 11, so that the protrusions 13 can slide inside the sliding groove 12, thereby ensuring the stability of the lower side plate 11 when it is raised and lowered by the push of the telescopic rod 10.

[0037] The two sets of lower side plates 11 have opposite side walls on the outer side of the working end of the push rod 14, and storage slots 19 are also provided for storing the clamping block 16. In addition, storage slots 19 are provided on the outer side of the two sets of lower side plates 11 on the outer side of the working end of the push rod 14, so as to store the clamping block 16 through the storage slots 19, and avoid the clamping block 16 colliding with the fixed plate 8 when the telescopic rod 10 retracts and drives the lower side plate 11 to rise, which would cause damage to the equipment.

[0038] The drive assembly 6 includes a rotary motor 20, a first toothed rod 23, and a second toothed rod 24. A groove 21 is provided on the bottom surface of the fixed frame 5. The first toothed rod 23 and the second toothed rod 24 are rotatably disposed inside the groove 21. One end of the first toothed rod 23 passes through the side wall of the fixed frame 5 and is keyed to the output shaft of the rotary motor 20, which is fixedly installed on the side wall of the fixed frame 5. The ends of the first toothed rod 23 and the second toothed rod 24 that are close to each other are fixedly installed by a flange. The flange is installed on the side wall of the partition plate 22. The partition plate 22 is fixedly installed in the middle of the inner wall of the groove 21. The outer arc surfaces of the first toothed rod 23 and the second toothed rod 24 are respectively threaded with a movable plate 25.

[0039] Limiting grooves 26 are provided on both sides of the inner wall of the groove 21. The two side walls of the movable plate 25 are slidably connected to the inner wall of the limiting groove 26 respectively. The bottom surface of the movable plate 25 is fixedly installed to the top surface of the fixed plate 8 respectively.

[0040] Furthermore, a drive assembly 6 is provided at the bottom of the fixed frame 5. The first toothed bar 23 and the second toothed bar 24 are rotatably disposed inside the groove 21. The first toothed bar 23 and the second toothed bar 24 are fixedly installed by a flange. The outer arc surfaces of the first toothed bar 23 and the second toothed bar 24 are respectively threaded with a moving plate 25. The bottom end of the moving plate 25 is fixedly installed with the top surface of the fixed plate 8, so that the first toothed bar 23 and the second toothed bar 24 can be driven to rotate simultaneously by the rotary motor 20. The outer arc surfaces of the first toothed bar 23 and the second toothed bar 24 have opposite thread directions. In turn, the moving plate 25 drives the hook 18 at the bottom of the fixed plate 8 to adjust the spacing.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hook spacing adjustment device for a four-rope RTG, comprising a crane support mechanism (1), characterized in that: It also includes a moving mechanism (2), a lifting mechanism (3) and a distance adjusting mechanism (4), the moving mechanism (2) is arranged on the top of the crane supporting mechanism (1), the lifting mechanism (3) is arranged at the bottom end of the moving block inside the moving mechanism (2), and the distance adjusting mechanism (4) is arranged at the bottom end of the lifting mechanism (3); The distance adjusting mechanism (4) comprises a driving assembly (6), a fixed frame (5) and a lifting hook (18), the top end of the fixed frame (5) is fixedly installed with the lifting mechanism (3), the driving assembly (6) is slidably arranged below the inside of the fixed frame (5), the top end of the lifting hook (18) is fixedly installed with the bottom surface of the fixed plate (8) through the steel wire rope (17), and the fixed plate (8) is fixedly installed with the driving assembly (6) respectively. The two sides of the fixed plate (8) are also provided with a stable assembly (7) for fixing the lifting hook (18).

2. The hook spacing adjustment device for a four-rope RTG according to claim 1, characterized in that: The stable assembly comprises a side top plate (9), the side top plate (9) is arranged above the side wall of the fixed plate (8), the bottom surface of the side top plate (9) is provided with a telescopic rod (10), and the working end of the telescopic rod (10) is fixedly installed with a lower side plate (11). The opposite side walls of the two groups of lower side plates (11) are also respectively provided with a clamping module for fixing the lifting hook (18).

3. The hook spacing adjustment device for a four-rope RTG according to claim 2, characterized in that: The clamping module comprises a push rod (14), the side walls below the opposite side walls of the two groups of lower side plates (11) are provided with a side frame (15), the inner wall side wall of the side frame (15) is fixedly installed with the push rod (14), the working end of the push rod (14) penetrates the side wall of the lower side plate (11) and is fixedly installed with a clamping block (16), and the opposite side walls of the two groups of clamping blocks (16) respectively abut against the outer arc surfaces of the lifting hooks (18).

4. The hook spacing adjustment device for a four-rope RTG according to claim 3, characterized in that: The two sides of the fixed plate (8) are respectively provided with a sliding groove (12), the opposite side walls of the two groups of lower side plates (11) are respectively provided with a protruding block (13), and the protruding block (13) is slidably connected with the inner wall of the sliding groove (12).

5. The hook spacing adjustment device for a four-rope RTG according to claim 4, characterized in that: The opposite side walls of the two groups of lower side plates (11) are also respectively provided with a clamping module for fixing the lifting hook (18).

6. The hook spacing adjustment device for a four-rope RTG according to claim 1, characterized in that: The driving assembly (6) comprises a rotary motor (20), a first tooth bar (23) and a second tooth bar (24), the bottom surface of the fixed frame (5) is provided with a groove (21), the first tooth bar (23) and the second tooth bar (24) are rotatably arranged in the inside of the groove (21), one end of the first tooth bar (23) penetrates the side wall of the fixed frame (5) and is connected with the output shaft of the rotary motor (20) fixedly installed on the side wall of the fixed frame (5), the proximal ends of the first tooth bar (23) and the second tooth bar (24) are fixedly installed through a flange plate, the flange plate is installed on the side wall of a partition plate (22), the partition plate (22) is fixedly installed in the middle of the inner wall of the groove (21), and the outer arc surfaces of the first tooth bar (23) and the second tooth bar (24) are respectively threadedly sleeved with a moving plate (25).

7. The hook spacing adjustment device for a four-rope RTG according to claim 6, characterized in that: The two side inner walls of the groove (21) are provided with limiting grooves (26), the two side walls of the moving plate (25) are respectively in sliding connection with the inner walls of the limiting grooves (26), and the bottom surface of the moving plate (25) is fixedly installed with the top surface of the fixed plate (8).

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