Novel stabilizing device for container spreader

Abstract

The utility model relates to the technical field of container hoisting machinery, and provides a novel stabilizing device for a container spreader, which comprises four sets of stabilizing winding drums, a stabilizing steel wire rope is wound on the outer wall of each set of stabilizing winding drum, and the ends, far away from the stabilizing winding drums, of the four sets of stabilizing steel wire ropes are connected to the same container spreader. The four sets of stabilization winding drums are in a V shape in one direction and are in an X shape in the other direction. The anti-rolling device overcomes the defects in the prior art, is reasonable in design and compact in structure, can realize soft anti-rolling, replaces the anti-rolling scheme that a traditional anti-rolling device adopts a brake to brake a brake disc, can collect torques generated by shaking of a lifting appliance at different speeds of a crane in real time, outputs matched reverse torques, and improves the stability of the lifting appliance. The impact is small, and the anti-swing effect is good. Compared with a traditional torque motor stabilization device, the torque motor stabilization device is simple in structure, few in parts, low in manufacturing cost and high in reliability.

Description

Technical Field

[0001] This utility model relates to the field of container crane machinery technology, specifically to a novel container spreader anti-sway device. Background Technology

[0002] With the booming development of the container shipping industry, the container throughput of major ports and terminals has been increasing year by year. As a result, the requirements for the loading and unloading efficiency of container cranes are getting higher and higher, which leads to the increasing operating speed of container cranes. The higher operating speed causes the container spreader suspended by the wire rope to swing significantly when the crane starts and brakes. This swinging not only creates a safety hazard of collision, but also seriously affects the efficiency of loading and unloading operations.

[0003] Traditional solutions involve equipping anti-sway devices with torque motors. However, these devices rely on brake discs to physically prevent swaying, leading to severe wear on components, high failure rates, and ineffective sway reduction. Therefore, we propose a novel anti-sway device for container spreaders. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a novel container spreader anti-sway device to solve the above-mentioned problems in the prior art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel container spreader anti-sway device, comprising four sets of anti-sway drums, each set of anti-sway drums having an anti-sway wire rope wound around its outer wall, the ends of the four sets of anti-sway wire ropes away from the anti-sway drums being connected to the same container spreader, the four sets of anti-sway drums forming a V shape in one direction and an X shape in another direction.

[0008] Furthermore, a drive shaft is provided on one side of the anti-sway drum, and a power device that can drive it to rotate is provided on one side of the drive shaft.

[0009] Furthermore, the power unit is a three-in-one device that integrates a motor, a reducer, and a brake.

[0010] Furthermore, a torque sensor connected to the drive shaft is provided on one side of the power unit to collect the torque value transmitted to the anti-sway drum through the anti-sway wire rope when the container spreader swings.

[0011] Furthermore, the anti-sway drum is mounted on the main support via bearings, and the main support is provided with several blocking bars equidistant from the outer wall of the anti-sway drum.

[0012] Furthermore, the outer wall of the anti-sway drum is provided with a spiral rope groove.

[0013] (III) Beneficial Effects

[0014] This utility model provides a novel container spreader anti-sway device. It has the following beneficial effects:

[0015] 1. The anti-sway device in this application can achieve soft anti-sway, replacing the traditional anti-sway device that uses a brake disc. It can collect the torque generated by the swaying of the lifting device at different speeds of the crane in real time and output a matching reverse torque, resulting in less impact and better anti-sway effect.

[0016] 2. Compared with traditional torque motor anti-sway devices, this application has a simple structure, fewer parts, lower cost, and higher reliability. Attached Figure Description

[0017] Figure 1 These are the three views of this utility model;

[0018] Figure 2 This is a partial view of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the structure of this utility model.

[0020] In the diagram: 1. Power unit; 2. Anti-sway drum; 3. Main support frame; 4. Anti-sway wire rope; 5. Bearing; 6. Drive shaft; 7. Torque sensor; 8. Container spreader. 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 1-3 A novel container spreader anti-sway device includes four anti-sway drums 2, each with an anti-sway wire rope 4 wound around its outer wall. The ends of the four anti-sway wire ropes 4 away from the anti-sway drums 2 are all connected to the same container spreader 8. The four anti-sway drums 2 are V-shaped in one direction and X-shaped in another direction.

[0023] The movement of a container crane, in terms of a plane, is divided into two directions: the X-axis and the Y-axis. When the container crane makes horizontal movement along the X-axis or Y-axis, or when it starts and brakes, the container spreader 8 suspended by the lifting wire rope will swing in the X-axis or Y-axis direction. When the container spreader 8 swings, it will pull the anti-sway wire rope 4, causing the wire rope to bear force. This force will be transmitted to the anti-sway drum 2 through the wire rope, thereby generating torque.

[0024] In this embodiment, a drive shaft 6 is provided on one side of the anti-sway drum 2, and a power device 1 that can drive the drive shaft 6 to rotate is provided on one side of the drive shaft 6. The power device 1 provides a reverse torque force to the drive shaft 6 in order to resist the swaying torque.

[0025] In this embodiment, the power unit 1 is a three-in-one device that integrates a motor, a reducer, and a brake, which facilitates the output of torque in the opposite direction.

[0026] In this embodiment, a torque sensor 7 connected to the drive shaft 6 is provided on one side of the power unit 1. This sensor is used to collect the torque value transmitted to the anti-sway drum 2 through the anti-sway wire rope 4 when the container spreader 8 swings. The magnitude of this torque is different during startup and braking at different speeds. The torque sensor 7 is a dynamic torque sensor that can collect the dynamic value of this torque in real time and feed it back to the driver of the electrical control system. Through PLC frequency conversion control, the three-in-one power unit 1 is matched to output a slightly larger directional torque to accurately control and resist the swing torque, thereby reducing the swing amplitude of the spreader.

[0027] In this embodiment, the anti-sway drum 2 is mounted on the main support 3 via bearing 5. The main support 3 is provided with several blocking bars that are equidistant from the outer wall of the anti-sway drum 2 to prevent the anti-sway wire rope 4 from jumping out of the anti-sway drum 2 when the anti-sway drum 2 changes direction quickly.

[0028] In this embodiment, the outer wall of the anti-sway drum 2 is provided with a spiral rope groove, so that the anti-sway wire rope 4 is arranged in an orderly manner along the spiral trajectory during the winding and unwinding process, which reduces the wear of the anti-sway wire rope 4 and avoids rope tangling and rope biting.

[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 novel container spreader anti-sway device, characterized in that: It includes four sets of anti-sway drums, each of which has an anti-sway wire rope wound around its outer wall. The ends of the four anti-sway wire ropes away from the anti-sway drums are all connected to the same container spreader. The four sets of anti-sway drums are V-shaped in one direction and X-shaped in another direction.

2. The novel container spreader anti-sway device as described in claim 1, characterized in that: The anti-sway drum has a drive shaft on one side, and a power device that can drive it to rotate is provided on the other side of the drive shaft.

3. The novel container spreader anti-sway device as described in claim 2, characterized in that: The power unit is a three-in-one device that integrates a motor, a reducer, and a brake.

4. A novel container spreader anti-sway device as described in claim 2 or 3, characterized in that: A torque sensor connected to the drive shaft is provided on one side of the power unit to collect the torque value transmitted to the anti-sway drum through the anti-sway wire rope when the container spreader swings.

5. A novel container spreader anti-sway device as described in claim 1, characterized in that: The anti-sway drum is mounted on the main support via bearings, and the main support is provided with several blocking bars equidistant from the outer wall of the anti-sway drum.

6. A novel container spreader anti-sway device as described in claim 1, characterized in that: The outer wall of the anti-sway drum is provided with a spiral rope groove.

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