Marine cargo transfer winch arrangement

Abstract

This utility model relates to the field of cargo transfer winch technology and discloses a marine cargo transfer winch device, including: a winch and a base. The winch is disposed on the top of the base, and a worm gear is connected to the bottom of the base. A support seat is rotatably connected to the bottom of the worm gear, and a worm is disposed on the top of the support seat. A transmission mechanism is disposed outside the worm, and the transmission mechanism includes a geared motor. The output end of the geared motor is connected to a drive shaft, which is inserted into the inside of the worm. A chuck is sleeved on the outside of the drive shaft. A cylinder is disposed on the top of the support seat, and a locking block is connected to the output end of the cylinder. This marine cargo transfer winch device, combined with the self-locking function of the worm and worm gear, forms a double locking structure, which can firmly fix the position of the drive shaft, worm, and worm gear, preventing slight displacement of the base caused by ship swaying or changes in cargo weight, and improving the stability and reliability of the winch transmission process.

Description

Technical Field

[0001] This utility model relates to the field of cargo transfer winch technology, specifically a marine cargo transfer winch device. Background Technology

[0002] Marine cargo handling winches are key devices in ship cargo handling operations. They are widely used in scenarios such as loading and unloading cargo and transferring cargo to different locations. Their core function is to adjust the output direction of the winch to achieve precise transmission and transfer of cargo. They are important equipment to ensure the efficient operation of ship cargo handling.

[0003] Existing marine cargo transfer winches have transmission structures with orientation adjustment capabilities, but their transmission ratio characteristics are not optimized enough, making it difficult to accurately control the output orientation of the winch and failing to meet the precise directional control requirements of different transmission positions during operation. Their locking mechanisms mostly employ a single design, and even those with self-locking or mechanical locking functions suffer from insufficient locking reliability. After the equipment stops adjusting, the base is prone to accidental rotation under external forces. Furthermore, under conditions of ship swaying or changes in cargo weight, the positions of the drive shaft, worm gear, and worm wheel are prone to slight displacement, affecting the safety and stability of the equipment's operation and making it difficult to ensure smooth and reliable operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a marine cargo transfer winch device to solve the technical problems mentioned above, such as insufficiently optimized transmission ratio characteristics, difficulty in accurately controlling the output orientation of the winch, and inability to adapt to the precise directional control requirements of transmission at different positions during operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a marine cargo handling winch device, comprising: a winch and a base, the winch being disposed on the top of the base, a worm gear being connected to the bottom of the base, a support seat being rotatably connected to the bottom of the worm gear, a worm being disposed on the top of the support seat, a transmission mechanism being disposed outside the worm, the transmission mechanism including a geared motor, a drive shaft being connected to the output end of the geared motor, the drive shaft being inserted into the inside of the worm, a chuck being sleeved on the outside of the drive shaft, a cylinder being disposed on the top of the support seat, a locking block being connected to the output end of the cylinder, and a locking groove adapted to the locking block being opened on the outside of the chuck.

[0006] After the geared motor starts, it drives the worm to rotate via the transmission shaft. The worm meshes with the worm wheel for transmission. Due to the large transmission ratio of the worm gear drive, the worm needs to rotate many times to drive the worm wheel to rotate a small angle, thus achieving precise directional adjustment. The worm gear drive also has a self-locking characteristic; when the worm stops rotating, the worm wheel will remain in a fixed position to prevent the base from rotating accidentally due to external forces, improving equipment safety.

[0007] When the winch drives the goods and the output direction of the winch needs to be adjusted, the geared motor is started to drive the worm gear to rotate, which in turn drives the worm wheel to rotate the base and the winch. The cylinder is started to drive the locking block to insert into the chuck, thereby locking the position of the drive shaft and the geared motor, thus improving the stability of the winch during transmission.

[0008] When adjusting the output position of the winch, first start the geared motor. The motor's output shaft drives the transmission shaft to rotate, which in turn drives the worm gear to rotate. The helical teeth of the worm gear push the tooth surface of the worm wheel, causing the worm wheel to rotate around its axis. This, in turn, causes the base and winch, which are fixedly connected to it, to rotate together, thus achieving position adjustment. After adjusting to the desired position, start the cylinder. The cylinder piston rod extends, causing the locking block to precisely insert into the chuck's slot, forming a mechanical lock. At this point, the transmission shaft cannot rotate, the worm gear is fixed, and the worm wheel cannot rotate, thus firmly locking the position of the base and winch.

[0009] The starting cylinder drives the locking block to insert into the chuck, thereby locking the position of the drive shaft and the geared motor, improving the stability of the winch during transmission.

[0010] The cylinder's locking mechanism employs a rigid mechanical connection, ensuring high locking precision and effectively preventing minor displacement of the base caused by ship swaying or changes in cargo weight. This dual-locking structure, with worm gear self-locking and cylinder mechanical locking, enhances the winch's stability and reliability during transmission, making it particularly suitable for the precise positioning requirements of ships operating in windy and wavy environments.

[0011] Preferably, the winch is provided with a steel cable recovery mechanism on its exterior, and the steel cable recovery mechanism is provided with a guide frame on its exterior, with holes on the exterior of the guide frame that are adapted to the steel cable.

[0012] The cable retrieval mechanism is used to automatically retrieve slack cables when the winch stops operating, preventing the cables from swinging or tangling when the ship is rocking. The holes in the guide frame guide the cables, ensuring they always enter and exit the winch along a predetermined path, reducing cable wear, extending service life, and improving the stability of cargo lifting.

[0013] Preferably, the winch is externally provided with a drive mechanism and a control module, and the control module is electrically connected to the drive mechanism and the geared motor.

[0014] The control module uses a programmable logic controller (PLC) or a dedicated control circuit, which can precisely coordinate the lifting and lowering movements of the winch with the rotation adjustment of the base. When it is necessary to change the direction of cargo hoisting, the control module first pauses the operation of the winch, then starts the geared motor to adjust the orientation, locks it after adjustment, and then resumes the operation of the winch, realizing intelligent and precise operation.

[0015] Preferably, spherical bearings are fitted on both outer sides of the drive shaft, and the outer sides of the spherical bearings are connected to the top of the support base via brackets.

[0016] Spherical bearings can adapt to the rotation of the drive shaft at different angles, reducing transmission resistance and improving transmission efficiency. At the same time, spherical bearings have a self-aligning function, which can compensate for installation errors and minor deformations generated during operation, ensuring that the worm and worm wheel always maintain a good meshing state, reducing wear and extending the service life of the equipment.

[0017] Preferably, the top of the support base is provided with a frame, and the top of the frame is connected to the geared motor through a rubber pad.

[0018] The frame provides stable support for the geared motor, while the rubber pads play a role in shock absorption and noise reduction, reducing the transmission of vibrations generated during motor operation to the support base and hull structure, reducing operating noise, improving operator comfort, and protecting the equipment from vibration damage.

[0019] Preferably, the bottom of the cylinder is bolted to a limiting seat, and the outside of the limiting seat is connected to the top of the support seat through a shock-absorbing pad.

[0020] The limit seat ensures the cylinder is installed in the correct position, preventing displacement during operation. The shock-absorbing pad further reduces the impact and vibration generated during cylinder operation, protecting the support structure and improving the stability and reliability of the locking mechanism.

[0021] Compared with the prior art, this utility model provides a marine cargo transfer winch device, which has the following beneficial effects: This marine cargo transfer winch utilizes the high transmission ratio of a worm gear to precisely adjust the winch's output orientation, meeting the need for accurate directional control during operation and enabling transmission work at different positions. The self-locking characteristic of the worm gear drive fixes the worm gear position after adjustment stops, preventing accidental rotation of the base due to external forces and effectively improving safety during operation. A mechanical lock is formed by the cooperation of a cylinder-driven locking block and a chuck slot, combined with the worm gear's self-locking function, creating a double-locking structure that firmly secures the positions of the drive shaft, worm, and worm gear. This prevents minor displacement of the base caused by ship swaying or changes in cargo weight, improving the stability and reliability of the winch's transmission process. Attached Figure Description

[0022] Figure 1 This is a front view of the present utility model; Figure 2 This is a schematic diagram of the top of the support base of this utility model; Figure 3 This is an external schematic diagram of the transmission mechanism of this utility model.

[0023] In the diagram: 1. Winch; 11. Cable retrieval mechanism; 12. Drive mechanism; 2. Base; 3. Support seat; 4. Worm gear; 5. Worm; 6. Transmission mechanism; 61. Gear motor; 62. Frame; 63. Drive shaft; 64. Spherical bearing; 65. Chuck; 66. Locking block; 67. Limit seat; 68. Cylinder. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 as well as Figure 3 A marine cargo handling winch includes: a winch 1 and a base 2. The winch 1 is located on top of the base 2. A worm gear 4 is connected to the bottom of the base 2. A support base 3 is rotatably connected to the bottom of the worm gear 4. A worm 5 is located on top of the support base 3. A transmission mechanism 6 is located outside the worm 5. The transmission mechanism 6 includes a geared motor 61. A transmission shaft 63 is connected to the output end of the geared motor 61. The transmission shaft 63 is inserted into the inside of the worm 5. A chuck 65 is sleeved on the outside of the transmission shaft 63. A cylinder 68 is located on top of the support base 3. A locking block 66 is connected to the output end of the cylinder 68. A locking groove adapted to the locking block 66 is opened on the outside of the chuck 65.

[0026] After the geared motor 61 starts, it drives the worm 5 to rotate via the transmission shaft 63. The worm 5 meshes with the worm wheel 4 for transmission. Due to the large transmission ratio of the worm 5 and worm wheel 4, the worm 5 needs to rotate multiple times to drive the worm wheel 4 to rotate by a small angle, thus achieving precise directional adjustment. The worm 5 and worm wheel 4 transmission also has a self-locking characteristic. When the worm 5 stops rotating, the worm wheel 4 will remain in a fixed position to prevent the base 2 from rotating accidentally due to external forces, thereby improving equipment safety.

[0027] When the winch 1 drives the goods and the output position of the winch 1 needs to be adjusted, the geared motor 61 is started to drive the worm gear 5 to rotate, which in turn drives the worm wheel 4 to rotate the base 2 and the winch 1. The cylinder 68 is started to drive the locking block 66 to insert into the chuck 65, thereby locking the position of the transmission shaft 63 and locking the geared motor 61, thus improving the stability of the winch 1 during transmission.

[0028] When the output orientation of winch 1 needs to be adjusted, first start the geared motor 61. The motor output shaft drives the transmission shaft 63 to rotate, which in turn drives the worm 5 to rotate. The helical teeth of the worm 5 push the tooth surface of the worm wheel 4, causing the worm wheel 4 to rotate around its axis, thereby driving the base 2 and winch 1, which are fixedly connected to it, to rotate together, thus achieving orientation adjustment. After adjusting to the desired position, start the cylinder 68. The piston rod of the cylinder 68 extends, driving the locking block 66 to precisely insert into the slot of the chuck 65, forming a mechanical lock. At this time, the transmission shaft 63 cannot rotate, the worm 5 is fixed, and the worm wheel 4 cannot rotate, thus firmly locking the orientation of the base 2 and winch 1.

[0029] The starting cylinder 68 drives the locking block 66 to insert into the chuck 65, thereby locking the position of the drive shaft 63 and locking the geared motor 61, thus improving the stability of the winch 1 during transmission.

[0030] The locking mechanism of cylinder 68 employs a rigid mechanical connection, ensuring high locking precision and effectively preventing minor displacement of the base 2 caused by ship swaying or changes in cargo weight. This dual-locking structure, with the worm gear 5 and worm wheel 4 self-locking and cylinder 68 mechanically locking, enhances the stability and reliability of the winch 1 during transmission, making it particularly suitable for the precise positioning requirements of ships operating in windy and wavey environments.

[0031] The winch 1 is equipped with a steel cable retrieval mechanism 11. The steel cable retrieval mechanism 11 is equipped with a guide frame. The guide frame has holes that are compatible with the steel cable. The steel cable retrieval mechanism 11 is composed of a linear movement module, which is used to drive the retrieved steel cable to be evenly distributed on the outside of the winch 1.

[0032] The cable retrieval mechanism 11 is used to automatically retrieve slack cables when the winch 1 stops working, preventing the cables from swinging or tangling when the ship is rocking. The holes on the guide frame guide the cables, ensuring that the cables always enter and exit the winch 1 along a predetermined path, reducing cable wear, extending service life, and improving the stability of the cargo lifting process.

[0033] The winch 1 is externally equipped with a drive mechanism 12 and a control module, and the control module is electrically connected to the drive mechanism 12 and the geared motor 61.

[0034] The control module uses a programmable logic controller (PLC) or a dedicated control circuit, which can precisely coordinate the lifting and lowering movements of the winch 1 with the rotation adjustment of the base 2. When it is necessary to change the direction of cargo hoisting, the control module first pauses the operation of the winch 1, then starts the geared motor 61 to adjust the orientation. After the adjustment is completed, it is locked, and then the operation of the winch 1 is resumed, realizing intelligent and precise operation.

[0035] Both sides of the drive shaft 63 are fitted with spherical bearings 64, and the outside of the spherical bearings 64 is connected to the top of the support base 3 through a bracket.

[0036] The spherical bearing 64 can adapt to the rotation of the drive shaft 63 at different angles, reducing transmission resistance and improving transmission efficiency. At the same time, the spherical bearing 64 has an automatic self-aligning function, which can compensate for installation errors and minor deformations generated during operation, ensuring that the worm 5 and worm wheel 4 always maintain a good meshing state, reducing wear and extending the service life of the equipment.

[0037] A frame 62 is mounted on the top of the support base 3, and the top of the frame 62 is connected to the geared motor 61 via a rubber pad.

[0038] The frame 62 provides stable support for the geared motor 61, while the rubber pads play a role in shock absorption and noise reduction, reducing the transmission of vibrations generated during motor operation to the support base 3 and the hull structure, reducing working noise, improving operator comfort, and protecting the equipment from vibration damage.

[0039] The bottom of cylinder 68 is bolted to limit seat 67, and the outside of limit seat 67 is connected to the top of support seat 3 through shock-absorbing pad.

[0040] The limit seat 67 ensures the accurate installation position of the cylinder 68 and prevents the cylinder 68 from shifting during operation. The shock-absorbing pad further reduces the impact and vibration generated when the cylinder 68 is activated, protects the support seat 3 structure, and improves the stability and reliability of the locking mechanism.

[0041] 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 process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marine cargo transfer winch device, comprising: A winch (1) and a base (2), wherein the winch (1) is located on the top of the base (2), characterized in that: a worm gear (4) is connected to the bottom of the base (2), a support seat (3) is rotatably connected to the bottom of the worm gear (4), a worm (5) is provided on the top of the support seat (3), a transmission mechanism (6) is provided on the outside of the worm (5), the transmission mechanism (6) includes a geared motor (61), a transmission shaft (63) is connected to the output end of the geared motor (61), the transmission shaft (63) is inserted into the inside of the worm (5), a chuck (65) is sleeved on the outside of the transmission shaft (63), a cylinder (68) is provided on the top of the support seat (3), a locking block (66) is connected to the output end of the cylinder (68), and a locking groove adapted to the locking block (66) is opened on the outside of the chuck (65).

2. The marine cargo transfer winch equipment according to claim 1, characterized in that: The winch (1) is provided with a steel cable retrieval mechanism (11) on its exterior. The steel cable retrieval mechanism (11) is provided with a guide frame on its exterior. The guide frame has holes on its exterior that are compatible with the steel cable.

3. The marine cargo transfer winch equipment according to claim 1, characterized in that: The winch (1) is provided with a drive mechanism (12) on its exterior and a control module on its exterior. The control module is electrically connected to the drive mechanism (12) and the geared motor (61).

4. A marine cargo transfer winch device according to claim 1, characterized in that: Both sides of the transmission shaft (63) are fitted with spherical bearings (64), and the outside of the spherical bearings (64) is connected to the top of the support seat (3) through a bracket.

5. A marine cargo transfer winch device according to claim 1, characterized in that: The top of the support base (3) is provided with a frame (62), and the top of the frame (62) is connected to the geared motor (61) through a rubber pad.

6. A marine cargo transfer winch device according to claim 1, characterized in that: The bottom of the cylinder (68) is connected to a limiting seat (67) by bolts, and the outside of the limiting seat (67) is connected to the top of the support seat (3) by a shock-absorbing pad.

Images