An automatic anchoring device for a port machine boom

Abstract

The utility model discloses an automatic anchoring device for port machine big arm relates to port machinery safety equipment technical field, including cylindrical base and be used for installing big arm's slewing table, and the slewing table outside fixedly equipped with the outer gear ring at cylindrical base place, and three locking assemblies that are annular equiangular distribution are fixedly installed on the outer wall of cylindrical base, and the locking assembly contains branch board, shaft cylinder, extension spring, cylinder head, insert block, guide rod, bottom plate and drive motor and baffle, and the insert block adapts the tooth gap between outer gear ring tooth, and the guide rod moves with cylinder head synchronization, and the baffle can rotate and block the bottom plate under the drive of drive motor. When slewing table rotates, the insert block is extruded and retracts by tooth, when slewing table stops, the insert block is automatically embedded tooth gap, and the baffle blocks the bottom plate by starting drive motor, and slewing table can be locked. The device adopts pure mechanical automatic adaptation structure, and need not electric control sensor, and environmental adaptability is strong, and anchoring is stable, and convenient operation, and adapts the port machine of gantry crane with slewing table, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of port machinery safety equipment technology, specifically an automatic anchoring device for the boom of a port machinery. Background Technology

[0002] In port operations, port cranes with slewing platforms (such as gantry cranes and tire-mounted cranes) are the core equipment for loading, unloading, and transferring cargo. Their booms need to rotate around a cylindrical base via the slewing platform to adjust the operating radius. When the port crane is stopped, under maintenance, or encountering strong winds, the rotation of the slewing platform needs to be restricted by anchoring devices to prevent the boom from swinging unexpectedly due to external forces such as wind and inertia, thus avoiding equipment collision damage or safety accidents. Therefore, anchoring devices are an indispensable safety protection component for port cranes.

[0003] Currently, the commonly used anchoring technologies in the port machinery field have significant shortcomings: One type is the electronically controlled sensor-based anchoring device, which relies on angle sensors and encoders to detect the position of the turntable and uses a controller to drive an electric or hydraulic mechanism to complete the locking. Although it has a certain degree of automation, the harsh environment of ports with high humidity, high salt spray, and high dust levels can easily lead to sensor corrosion and signal interference. In addition, it relies on electric and hydraulic systems, and is prone to failure in the event of power outages or hydraulic failures. Furthermore, the maintenance cost of electronic components is high and the failure rate is high. The other type is the purely manual mechanical anchoring device, which locks the turntable by manually inserting and removing pins into the gap of the gear ring. This has low operational efficiency, especially in emergency scenarios with strong winds. Manually aligning the pins with the gap of the gear ring is time-consuming, and high-altitude operations pose safety risks. If the pins are not fully inserted, the anchoring may fail.

[0004] Therefore, those skilled in the art have provided an automatic anchoring device for port machinery booms to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide an automatic anchoring device for the boom of a port machinery, so as to solve the problems mentioned in the background art.

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

[0007] An automatic anchoring device for a port machinery boom includes a cylindrical base and a turntable for mounting the boom. An external toothed ring is fixedly fitted on the outer side of the turntable near the cylindrical base. Three locking components are fixedly installed on the outer wall of the cylindrical base near the turntable, arranged in a ring at equal angles. Each locking component includes a support plate fixedly welded to the outer wall of the cylindrical base. A shaft is fixedly installed at the upper end of the support plate, and the end of the shaft near the cylindrical base is the front end face.

[0008] As a further embodiment of this utility model: the front end face of the shaft cylinder is provided with an inner cavity, the inner cavity is provided with a telescopic spring, and the front end of the telescopic spring is provided with a cylindrical head.

[0009] As a further embodiment of this utility model: the front end of the cylindrical head extends into an inner cavity and is fixedly connected with an insert block that matches the tooth gap of the external tooth ring.

[0010] As a further improvement of this utility model: the rear end face of the shaft cylinder is provided with a through hole extending into the inner cavity, and a guide rod is fixedly connected to the rear end face of the cylindrical head.

[0011] As a further embodiment of this utility model: the outer diameter of the guide rod is adapted to the through hole and one end extends through the through hole to the rear end face of the shaft cylinder, and the extended end of the guide rod is fixedly connected to a base plate.

[0012] As a further embodiment of this utility model: a drive motor is fixedly installed at the lower end of the support plate, and a rectangular baffle is fixedly installed on the output shaft of the drive motor, with the baffle initially facing downwards.

[0013] As a further improvement of this utility model, the baffle can be rotated to abut against the side of the bottom plate away from the shaft cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting three locking components arranged in a ring at equal angles on the outer wall of the cylindrical base, can simultaneously lock the turntable from multiple points in the circumferential direction. Combined with the precise fit between the external toothed ring and the insert block, it forms a "multi-directional rigid limiting" structure. Compared to single-point locking, multi-point locking can disperse the external forces such as wind and inertia borne by the turntable, avoiding excessive local stress that could lead to anchoring failure. It significantly improves wind torque resistance and can stably resist the unexpected swing of the boom in strong winds at ports, ensuring the safety of equipment and personnel.

[0016] 2. The core of the device relies on the elastic drive of the telescopic spring and the physical limitation of the mechanical structure to achieve anchoring, eliminating the need for sensors, electronic control modules, and other components susceptible to environmental influences. In the harsh environment of ports with high humidity, high salt spray, and high dust levels, there are no issues such as corrosion of electronic components or signal interference. Furthermore, all components are made of rigid metal, making the structure wear-resistant and anti-aging, resulting in a failure rate far lower than that of electrically controlled anchoring devices, significantly extending service life and reducing equipment maintenance costs.

[0017] 3. During the rotation of the rotary table, the external toothed ring teeth can automatically press the insert block to achieve extension and retraction without the need for manual position adjustment; when the rotary table stops, the insert block can automatically engage with the tooth gap under the action of the extension spring, and locking can be completed simply by starting the drive motor to rotate the baffle, without the need for complicated position calibration or manual insertion and removal operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic anchoring device for a port machinery boom.

[0019] Figure 2 This is a top view of an automatic anchoring device for a port machinery boom.

[0020] Figure 3 This is a side view of an automatic anchoring device for a port machinery boom.

[0021] Figure 4 This is a schematic diagram of the internal structure of the shaft cylinder in an automatic anchoring device for a port machinery boom.

[0022] In the diagram: 1. Cylindrical base; 2. Rotary table; 3. External gear ring; 4. Locking assembly; 5. Support plate; 6. Shaft cylinder; 7. Inner cavity; 8. Through hole; 9. Guide rod; 10. Base plate; 11. Telescopic spring; 12. Cylindrical head; 13. Insert block; 14. Drive motor; 15. Baffle. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-4 This embodiment provides an automatic anchoring device for a port machinery boom, including a cylindrical base 1 and a turntable 2 for mounting the boom. An external toothed ring 3 is fixedly sleeved on the outer side of the turntable 2 near the cylindrical base 1. Three locking components 4 are fixedly installed on the outer wall of the cylindrical base 1 near the turntable 2. The three locking components 4 are distributed in a ring at equal angles and can lock simultaneously from multiple directions, improving anchoring stability.

[0025] The locking assembly 4 includes a support plate 5, which is fixedly welded to the outer wall of the cylindrical base 1, providing stable support for the overall structure. A shaft cylinder 6 is fixedly installed at the upper end of the support plate 5. The end of the shaft cylinder 6 closest to the cylindrical base 1 is the front end face. An inner cavity 7 is opened on the front end face of the shaft cylinder 6. A telescopic spring 11 is installed in the inner cavity 7. A cylindrical head 12 is provided at the front end of the telescopic spring 11. The front end of the cylindrical head 12 extends out of the inner cavity 7 and is fixedly connected to an insert block 13. The insert block 13 is adapted to the tooth gap of the outer toothed ring 3 and can be precisely inserted between the teeth to achieve initial positioning.

[0026] The rear end face of the shaft cylinder 6 has a through hole 8 extending into the inner cavity 7. A guide rod 9 is fixedly connected to the rear end face of the cylindrical head 12. The outer diameter of the guide rod 9 is adapted to the through hole 8, and one end extends through the through hole 8 to the rear end face of the shaft cylinder 6. The extended end of the guide rod 9 is fixedly connected to the base plate 10. The guide rod 9 can move synchronously with the cylindrical head 12. When the cylindrical head 12 retracts into the inner cavity 7, it drives the base plate 10 to move away from the shaft cylinder 6. Through the cooperation of the guide rod 9 and the through hole 8, the movement direction of the cylindrical head 12 and the insert block 13 can be kept stable to avoid deviation.

[0027] A drive motor 14 is fixedly installed at the lower end of the support plate 5. A rectangular baffle 15 is fixedly installed on the output shaft of the drive motor 14. The baffle 15 initially faces downward and does not affect the normal movement of the base plate 10. When anchoring, the baffle 15 can rotate 180 degrees upward under the drive of the drive motor 14. After rotation, it can abut against the side of the base plate 10 away from the shaft cylinder 6, thereby restricting the movement of the guide rod 9 and the cylindrical head 12.

[0028] When the rotary table 2 drives the boom to rotate, the external gear ring 3 rotates synchronously with the rotary table 2. The teeth of the external gear ring 3 continuously contact and compress the insert block 13. After the insert block 13 is subjected to force, it drives the cylindrical head 12 to compress the telescopic spring 11, causing the cylindrical head 12 to retract into the inner cavity 7 of the shaft cylinder 6. At the same time, the guide rod 9 moves backward with the cylindrical head 12, driving the base plate 10 to move away from the shaft cylinder 6. When the insert block 13 rotates between the two teeth of the external gear ring 3, the telescopic spring 11 loses its compressive force and rebounds, pushing the cylindrical head 12 forward, causing the insert block 13 to reset and insert between the two teeth. During this process, the guide rod 9 and the base plate 10 also move forward synchronously with the cylindrical head 12. This cycle continues, and the insert block 13 is continuously pushed backward and reset as the rotary table 2 rotates, achieving back-and-forth extension and retraction.

[0029] When the turntable 2 stops rotating, the insert block 13 is positioned between the two teeth of the outer toothed ring 3 under the action of the telescopic spring 11. If anchoring is required at this time, the drive motor 14 is started, and the drive motor 14 drives the baffle 15 to rotate upward 180 degrees. After rotation, the baffle 15 abuts against the side of the base plate 10 away from the shaft cylinder 6, restricting the base plate 10 from moving backward. In turn, the guide rod 9 restricts the cylindrical head 12 and the insert block 13 from retracting backward, so that the insert block 13 is stably locked between the two teeth and cannot move due to the pressure of the teeth, thereby achieving the locking of the turntable 2 and completing the automatic anchoring of the port machinery boom.

[0030] When unlocking, the drive motor 14 drives the baffle 15 to rotate 180 degrees in the opposite direction, so that the baffle 15 returns to its initial downward position, releasing the obstruction to the base plate 10. The insert block 13 returns to its retractable state, and the turntable 2 can rotate freely again.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic anchoring device for a port machinery boom, comprising a cylindrical base (1) and a turntable (2) for mounting the boom, characterized in that, An external toothed ring (3) is fixedly fitted on the outer side of the rotary table (2) near the cylindrical base (1). Three locking components (4) are fixedly installed on the outer wall of the cylindrical base (1) near the rotary table (2) in a ring shape at equal angles. The locking components (4) include a support plate (5) fixedly welded to the outer wall of the cylindrical base (1). A shaft cylinder (6) is fixedly installed on the upper end of the support plate (5). The end of the shaft cylinder (6) near the cylindrical base (1) is the front end face.

2. The automatic anchoring device for a port machinery boom according to claim 1, characterized in that, The front end face of the shaft cylinder (6) is provided with an inner cavity (7), and a telescopic spring (11) is provided in the inner cavity (7). The front end of the telescopic spring (11) is provided with a cylindrical head (12).

3. An automatic anchoring device for a port machinery boom according to claim 2, characterized in that, The cylindrical head (12) extends into an inner cavity (7) and is fixedly connected to an insert (13) that matches the tooth gap of the outer toothed ring (3).

4. An automatic anchoring device for a port machinery boom according to claim 3, characterized in that, The rear end face of the shaft cylinder (6) is provided with a through hole (8) that extends into the inner cavity (7), and the rear end face of the cylindrical head (12) is fixedly connected with a guide rod (9).

5. An automatic anchoring device for a port machinery boom according to claim 4, characterized in that, The outer diameter of the guide rod (9) is adapted to the through hole (8) and one end extends through the through hole (8) to the rear end face of the shaft cylinder (6). The extended end of the guide rod (9) is fixedly connected to the base plate (10).

6. An automatic anchoring device for a port machinery boom according to claim 1, characterized in that, A drive motor (14) is fixedly installed at the lower end of the support plate (5), and a rectangular baffle (15) is fixedly installed on the output shaft of the drive motor (14). The baffle (15) is initially facing downward.

7. An automatic anchoring device for a port machinery boom according to claim 6, characterized in that, After the baffle (15) is rotated 180 degrees, it can abut against the side of the bottom plate (10) away from the shaft cylinder (6).

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