Rail-mounted container crane stabilizer

Abstract

The utility model relates to container hoisting technical field provides a track type container crane anti -rolling mechanism, including the trolley that moves along the crane track direction and is used for fixing the container top's lifting appliance, the lifting appliance includes two extension to the container top and the symmetrical setting lifting plate, the bottom of trolley is equipped with the anti -rolling frame that can lift, the both sides of anti -rolling frame are equipped with the support leg that extends downward to the symmetry, the distance between two support leg outer walls is adapted the distance between two lifting plate top of lifting appliance. The utility model overcomes the insufficient of prior art, and the design is reasonable, and the structure is compact, when the container swings, the anti -rolling frame drives the hemisphere, the spheroid and the rotation axis rotation, will not forcibly lock the movement, effectively reduced the stress that lifting appliance bore, and under the action of first support groove, second support groove and spring, can reduce the container swing amplitude, and the multi -site synergies to realize nimble anti -rolling operation.

Description

Technical Field

[0001] This utility model relates to the field of container hoisting technology, specifically to a rail-mounted container crane anti-sway mechanism. Background Technology

[0002] In container lifting operations, significant swaying often occurs due to factors such as wind force and the crane's inertia. Currently, common container torque anti-sway devices require components such as anti-sway torque motors, brakes, drums, sprockets and chains, and one-way clutches. These devices employ passive anti-sway control, and issues such as brake wear, chain breakage, and one-way clutch wear are common problems. This not only increases the difficulty and risk of lifting operations but may also damage containers, lifting equipment, and the crane itself, affecting logistics efficiency and safety. Therefore, we propose a rail-mounted container crane anti-sway mechanism. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a sway reduction mechanism for a rail-mounted container crane, thereby solving the aforementioned problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rail-mounted container crane anti-sway mechanism, comprising a trolley that moves along the crane rail and a spreader for fixing the top of the container. The spreader includes two symmetrically arranged lifting plates extending above the container. The bottom of the trolley is provided with a liftable anti-sway frame. The two sides of the anti-sway frame are symmetrically provided with downwardly extending support legs. The distance between the outer walls of the two support legs is adapted to the distance between the two lifting plates at the top of the spreader, so as to achieve the contact between the inner walls of the two lifting plates and the two support legs.

[0005] Furthermore, the top of the rocker arm is provided with a hemisphere, the upper part of the rocker arm is provided with a limiting frame, and the bottom of the limiting frame is provided with a first support groove, the lower opening of the first support groove abutting against the upper surface of the hemisphere.

[0006] Furthermore, the top of the limiting frame is connected to the bracket of the trolley via symmetrically arranged cylinders, and the top of the hemisphere is provided with a sphere, the bottom of which slides within the upper opening of the first support groove.

[0007] Furthermore, the top of the sphere is provided with a slanted rod, the top of the slanted rod is provided with an eccentric arm, the side of the eccentric arm away from the slanted rod is connected to a rotating shaft, the axis of the rotating shaft passes through the center of the hemispherical surface, and the outer wall of the rotating shaft is provided with a connecting plate, and a spring is connected between the connecting plate and the limiting frame.

[0008] Furthermore, a second support groove is provided inside the limiting frame, and the lower opening of the second support groove is slidably connected to the upper surface of the sphere.

[0009] Furthermore, the limiting frame is provided with a third support groove and a fourth support groove. The rotating shaft passes through the third support groove and the fourth support groove and forms a rotating connection. The diameter of the connecting plate is larger than the inner diameter of the third support groove, and the connecting plate is located above the third support groove.

[0010] Furthermore, the upper and lower openings of the first support groove are both rounded.

[0011] Furthermore, the lower opening of the second support groove is rounded, and its interior has an inverted conical groove structure.

[0012] This utility model provides a sway reduction mechanism for a rail-mounted container crane. It has the following beneficial effects:

[0013] When the container sways, the anti-sway frame drives the hemisphere, sphere and rotating shaft to rotate, without forcibly locking the movement, effectively reducing the stress on the spreader. Under the action of the first support groove, the second support groove and the spring, the sway amplitude of the container can be reduced. The coordinated action of multiple parts can achieve flexible anti-sway operation. Moreover, the active anti-sway method can effectively reduce the wear of the anti-sway device and increase the service life of the anti-sway device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a left-side plan view of the overall structure of this utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the anti-sway mechanism of this utility model;

[0017] Figure 4 This utility model Figure 3 Structural sectional view;

[0018] Figure 5 This is a three-dimensional schematic diagram of the spherical structure of this utility model;

[0019] Figure 6 This is a three-dimensional schematic diagram of the limiting frame structure of this utility model.

[0020] In the diagram: 1. Trolley; 2. Lifting device; 3. Anti-sway frame; 31. Support leg; 321. Hemisphere; 322. Sphere; 323. Diagonal bar; 33. Eccentric arm; 34. Rotating shaft; 35. Connecting plate; 36. Spring; 4. Limiting frame; 41. First support groove; 42. Second support groove; 43. Third support groove; 44. Fourth support groove; 5. Cylinder. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] See attached document Figure 1-6 A sway-reducing mechanism for a rail-mounted container crane includes a trolley 1 that moves along the crane rail and a spreader 2 for fixing the top of the container. To ensure stability during container lifting, the spreader 2 includes two symmetrically arranged lifting plates extending above the container, so that the container is subjected to uniform force during lifting. Variable frequency servo motors are symmetrically arranged on the top of the trolley 1. The servo motors are connected to the lifting plates on the top of the spreader 2 via multiple pulley blocks and wire ropes. The specific connection method is prior art and will not be described in detail in this application. The bottom of the trolley 1 is equipped with... The system includes a height-adjustable anti-sway frame 3 with symmetrical downward-extending support legs 31 on both sides. The distance between the outer walls of the two support legs 31 is adapted to the distance between the two lifting plates at the top of the spreader 2, so that the two support legs 31 abut against the inner walls of the two lifting plates to actively reduce the sway of the container. Before lifting, the anti-sway frame 3 is controlled to move downward so that the two support legs 31 are inserted between the two lifting plates, forming a limit on the spreader 2 to prevent the container from swaying significantly during the lifting process, thereby improving the safety of the lifting operation.

[0023] In this embodiment, the anti-sway frame 3 has a hemisphere 321 at the top and a limiting frame 4 above it. The bottom of the limiting frame 4 has a first support groove 41. The lower opening of the first support groove 41 abuts against the upper surface of the hemisphere 321. When the container swings during hoisting, the anti-sway frame 3 will cause the hemisphere 321 to swing, without forcibly locking the movement of the container. This can effectively reduce the stress borne by the spreader 2. When the container swings during hoisting, the hemisphere 321 will rotate within the lower opening of the first support groove 41. The friction between the hemisphere 321 and the lower opening of the first support groove 41 can reduce the swing amplitude of the container, thereby avoiding excessive swing amplitude during container hoisting and improving the safety of hoisting.

[0024] In this embodiment, the top of the limiting frame 4 is connected to the bracket of the trolley 1 through symmetrically arranged cylinders 5. The top of the hemisphere 321 is provided with a ball 322. The bottom of the ball 322 slides in the upper opening of the first support groove 41. When the container is hoisted and swung, the bottom of the ball 322 rubs against the upper opening of the first support groove 41, which can further reduce the swing amplitude. The cylinder 5 can drive the limiting frame 4 to move up and down, and further drive the ball 322, hemisphere 321 and anti-sway frame 3 to move up and down, so as to facilitate the movement of the two support legs 31 between the two hanging plates.

[0025] In this embodiment, the top of the sphere 322 is provided with a diagonal bar 323, and the top of the diagonal bar 323 is provided with an eccentric arm 33. The side of the eccentric arm 33 away from the diagonal bar 323 is connected to a rotating shaft 34. The axis of the rotating shaft 34 passes through the center of the hemisphere 321, and the outer wall of the rotating shaft 34 is provided with a connecting plate 35. A spring 36 is connected between the connecting plate 35 and the limiting frame 4. When the container is hoisted and shakes, the anti-sway frame 3 will swing to a certain extent. At this time, the eccentric arm 33 and the rotating shaft 34 convert the swing rotation into the rotational motion of the rotating shaft 34. At this time, the spring 36 will twist to a certain extent to play a role in buffering and resetting, so that the anti-sway frame 3 and the container can quickly return to a stable state, further reducing the shaking of the container. Moreover, the active anti-swaying of the container by the twisting of the spring 36 can effectively reduce the wear of the anti-sway device and increase the service life of the anti-sway device.

[0026] In this embodiment, a second support groove 42 is provided in the limiting frame 4. The lower opening of the second support groove 42 is slidably connected to the upper surface of the ball 322. The second support groove 42 provides additional support and limiting function for the ball 322. Together with the first support groove 41, it ensures the stability of the ball 322 during movement. When the container shakes, the ball 322 slides in the second support groove 42 and provides friction to each other to reduce the shaking amplitude of the container.

[0027] In this embodiment, the limiting frame 4 is further provided with a third support groove 43 and a fourth support groove 44. The rotating shaft 34 passes through the third support groove 43 and the fourth support groove 44 and forms a rotating connection, which allows the rotating shaft 34 to rotate freely while being restricted by the limiting frame 4 to ensure the stability of the rotation. The diameter of the connecting plate 35 is larger than the inner diameter of the third support groove 43, and the connecting plate 35 is located above the third support groove 43. The spring 36 is connected above the connecting plate 35 to ensure the reliability of the entire anti-sway mechanism.

[0028] In this embodiment, the upper and lower openings of the first support groove 41 are rounded to reduce friction and wear between the hemisphere 321 and the first support groove 41, and extend the service life of the anti-sway mechanism. The lower opening of the second support groove 42 is rounded to reduce friction and wear between the sphere 322 and the first and second support grooves 41 and 42. The second support groove 42 is an inverted conical groove, which can prevent friction between the inclined rod 323 and the second support groove 42.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rail-mounted container crane anti-sway mechanism, comprising a trolley (1) moving along the direction of the crane rail and a spreader (2) for fixing the top of the container, characterized in that: The spreader (2) includes two symmetrically arranged lifting plates extending above the container. The bottom of the trolley (1) is provided with a liftable anti-sway frame (3). The two sides of the anti-sway frame (3) are symmetrically provided with downwardly extending support legs (31). The distance between the outer walls of the two support legs (31) is adapted to the distance between the two lifting plates at the top of the spreader (2) so as to achieve the contact between the two support legs (31) and the inner walls of the two lifting plates.

2. The anti-sway mechanism for a rail-mounted container crane as described in claim 1, characterized in that: The top of the anti-sway frame (3) is provided with a hemisphere (321), and a limiting frame (4) is provided above the anti-sway frame (3). The bottom of the limiting frame (4) is provided with a first support groove (41), and the lower opening of the first support groove (41) abuts against the upper surface of the hemisphere (321).

3. The anti-sway mechanism for a rail-mounted container crane as described in claim 2, characterized in that: The top of the limiting frame (4) is connected to the bracket of the trolley (1) through symmetrically arranged cylinders (5). The top of the hemisphere (321) is provided with a sphere (322), and the bottom of the sphere (322) slides in the upper opening of the first support groove (41).

4. The anti-sway mechanism for a rail-mounted container crane as described in claim 3, characterized in that: The top of the sphere (322) is provided with a slanted rod (323), the top of the slanted rod (323) is provided with an eccentric arm (33), the side of the eccentric arm (33) away from the slanted rod (323) is connected to a rotating shaft (34), the axis of the rotating shaft (34) passes through the center of the hemisphere (321), and the outer wall of the rotating shaft (34) is provided with a connecting plate (35), and a spring (36) is connected between the connecting plate (35) and the limiting frame (4).

5. The anti-sway mechanism for a rail-mounted container crane as described in claim 4, characterized in that: The limiting frame (4) has a second support groove (42) inside, and the lower opening of the second support groove (42) is slidably connected to the upper surface of the sphere (322).

6. A rail-mounted container crane anti-sway mechanism as described in claim 4 or 5, characterized in that: The limiting frame (4) is also provided with a third support groove (43) and a fourth support groove (44). The rotating shaft (34) passes through the third support groove (43) and the fourth support groove (44) and forms a rotating connection. The diameter of the connecting plate (35) is larger than the inner diameter of the third support groove (43), and the connecting plate (35) is located above the third support groove (43).

7. The anti-sway mechanism for a rail-mounted container crane as described in claim 3, characterized in that: The upper and lower openings of the first support groove (41) are rounded.

8. The anti-sway mechanism for a rail-mounted container crane as described in claim 5, characterized in that: The lower opening of the second support groove (42) is rounded, and its interior has an inverted conical groove structure.

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