Vessel stopper

Abstract

The application discloses a ship chain stopper, which comprises a support, a magnetic force damping assembly arranged at the bottom of the support, a chain hole longitudinally arranged through the magnetic force damping assembly, an electromagnet arranged in the inner cavity of the magnetic force damping assembly, a contact surface of the electromagnet being close to the magnetic force damping assembly and the anchor chain, a sprocket arranged at the inner side of the support, a transmission shaft horizontally arranged through the center of the sprocket, a groove arranged on the outer diameter surface of the sprocket, a brake disc arranged on the outer diameter of the transmission shaft, a brake arranged below the brake disc, and a first clamping block arranged below the sprocket. First, the sprocket is used for braking, then the first clamping block is used for braking the anchor chain, and during the braking process, the magnetic force damping assembly is always working, the anchor chain is braked by the strong magnetic force and the second clamping block, and the triple braking effect is achieved, so that the braking effect is better. During the braking process, the anchor chain is first decelerated, so that the chain stopper and the anchor chain are prevented from being damaged during emergency braking of the chain.

Description

Technical Field

[0001] This invention relates to the field of chain stopper technology, specifically to ship chain stoppers. Background Technology

[0002] A chain stopper, also known as a chain restraint or anchor chain stopper, is a specialized device used to restrain or clamp the anchor chain. It is fixed between the anchor winch and the anchor chain drum, separate from the anchor chain wheel, and bears the tension of the anchor and anchor chain during anchoring and mooring, preventing it from being transmitted to the anchor chain wheel. Commonly used types include screw chain stops, knife chain stops, tongue chain stops, cam chain stops, and roller knife chain stops. For example, application number CN202110936842.8 relates to the technical field of marine anchoring equipment and discloses a chain stopper for large ships. A rotating shaft with a toothed outer ring is movably sleeved between the inner sides of the top of the frame. A gate pin is fixedly installed in the middle section of the rotating shaft. A gate controller is fixedly installed on the outer side of the top of the frame at the same height as the rotating shaft. A transmission device is movably sleeved on the outer ring of the shaft inside the frame. A hydraulic plug is movably sleeved on the inner ring of the sealing bushing. A pressure spring is fixedly connected between the outer side of the hydraulic plug and the inner wall of the gate controller. Z-shaped hydraulic chambers are symmetrically opened in the middle of the inner walls on both sides of the frame, above and below the transmission device. A brake block is movably sleeved on the end of the hydraulic chamber near the roller. An adjustment chamber connecting one side and the middle of the hydraulic chamber is opened in the bottom position of the screw inside the frame. By cooperating with the structure inside the hydraulic chamber and the rotating shaft, the braking effect and safety of the chain stopper during braking are improved.

[0003] The aforementioned chain stopper for large ships uses a chuck to lower the ship's chain. However, during the lowering process, the combined force of the ship's forward momentum and the weight of the chain causes excessive gravity on the chuck and rollers. Prolonged use can damage the rotating shaft in the device, thereby reducing its service life.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a ship chain stopper to achieve a more practical purpose. Summary of the Invention

[0005] To address the problem of poor braking performance, this invention provides a ship chain stopper that reduces damage to both the chain stopper and the anchor chain itself.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ship chain stopper, comprising a bracket, a magnetic damping component at the bottom of the bracket, a chain hole longitudinally penetrating the magnetic damping component, the chain hole having the same shape as the anchor chain, an electromagnet embedded in the inner cavity of the magnetic damping component, the electromagnet being in close contact with the contact surface between the magnetic damping component and the anchor chain, a sprocket on the inner side of the bracket, a drive shaft transversely penetrating the center of the sprocket, a groove on the outer diameter surface of the sprocket, and anti-slip texture on the contact surface between the groove and the anchor chain, a brake disc on the outer diameter of the drive shaft, a brake brake below the brake disc, a first clamping block below the sprocket, a rack on the side end face of the first clamping block, a drive motor on one side of the rack, and a gear at the output end of the drive motor.

[0007] Furthermore, the magnetic damping assembly has a hydraulic telescopic rod on the side that contacts the anchor chain, and a spring is provided around the outer diameter of the hydraulic telescopic rod. A second clamping block is provided at one end of the hydraulic telescopic rod, and the side of the second clamping block that contacts the anchor chain has anti-slip texture. Multiple sets of hydraulic telescopic rods and springs are provided on the side of the second clamping block that is away from the anchor chain.

[0008] Furthermore, a speed reducer is provided inside the contact surface between the drive shaft and the bracket, and a bearing is provided on the contact surface between the drive shaft and the bracket. The sprocket and the drive shaft form a rotating structure with the bracket through the bearing.

[0009] Furthermore, the brake disc is disc-shaped, and the opening end of the brake is greater than the height of the brake disc. A micro motor is installed inside the brake, and the micro motor is fixedly connected to an internal threaded sleeve via a transmission belt. A threaded rod is installed inside the brake, and the threaded rod and the internal threaded sleeve form a threaded rotation structure. A sliding groove is provided at the lower end of the brake, and the brake forms a sliding structure through the sliding groove.

[0010] Furthermore, the rack and gear form a gear meshing structure, and one corner of the first clamping block is chamfered, and the side of the first clamping block that contacts the anchor chain is provided with anti-slip texture.

[0011] Furthermore, the tangent of the sprocket output anchor chain is in the same vertical plane as the chain hole that is longitudinally connected to the magnetic damping component, and the anchor chain passes through the chain hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: When braking the anchor chain, this device first brakes through the sprocket, and then brakes the anchor chain through the first clamping block. During the above braking process, the magnetic damping component always works, braking the anchor chain through strong magnetic force and the second clamping block. Through the triple braking effect, the braking effect is better. In addition, during the braking process, this device first decelerates the anchor chain, thereby preventing damage to the chain stopper and the anchor chain itself when the chain is braked urgently.

[0013] The magnetic damping component of this device generates a strong magnetic force through an electromagnet, which, through a hydraulic telescopic rod and a spring, brings the second clamping block closer to the anchor chain, thereby slowing down the anchor chain so that the aforementioned braking element can brake the anchor chain.

[0014] The sprocket of this device rotates as the anchor chain is lowered. When the anchor chain is braked, the sprocket is slowed down by a reducer, and the anchor chain is slowed down by the anti-slip texture on the sprocket, so that this device can slow down the anchor chain.

[0015] This device primarily brakes the anchor chain via a pair of first clamping blocks. A hydraulic telescopic rod moves the two sets of first clamping blocks in opposite directions, thereby clamping the anchor chain. Anti-slip textures are provided on the side of the first clamping block that contacts the anchor chain to facilitate braking. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the ship chain stopper of the present invention;

[0017] Figure 2 This is a side view of the ship chain stopper structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the magnetic damping component of the ship chain stopper of the present invention;

[0019] Figure 4 This is a front view schematic diagram of the magnetic damping component of the ship chain stopper of the present invention;

[0020] Figure 5 This is a schematic diagram of the second clamping block structure of the ship chain stopper of the present invention;

[0021] Figure 6 This is a front view schematic diagram of the ship chain stop brake of the present invention.

[0022] In the diagram: 1. Bracket; 2. Magnetic damping assembly; 200. Chain hole; 201. Electromagnet; 3. Sprocket; 301. Groove; 4. Drive shaft; 401. Brake disc; 402. Brake brake; 403. Micro motor; 404. Internal threaded sleeve; 405. Threaded rod; 406. Slide groove; 5. First clamping block; 6. Rack; 7. Drive motor; 8. Gear; 9. Hydraulic telescopic rod; 10. Spring; 11. Second clamping block; 12. Reducer. Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-6 The ship chain stopper of the present invention includes a bracket 1, a magnetic damping component 2 is provided at the bottom of the bracket 1, the magnetic damping component 2 is longitudinally provided with a chain hole 200, and the chain hole 200 is the same shape as the anchor chain, an electromagnet 201 is embedded in the inner cavity of the magnetic damping component 2, and the electromagnet 201 is in close contact with the contact surface between the magnetic damping component 2 and the anchor chain, and a hydraulic telescopic rod 9 is provided on the side of the magnetic damping component 2 that contacts the anchor chain, and a spring 10 is provided around the outer diameter of the hydraulic telescopic rod 9. The magnetic damping component 2 generates a strong magnetic force through the electromagnet 201, and through the hydraulic telescopic rod 9 and the spring 10, the second clamp 11 is brought closer to the anchor chain, thereby decelerating the anchor chain so that the above-mentioned braking element can brake the anchor chain.

[0025] One end of the hydraulic telescopic rod 9 is provided with a second clamping block 11, and the side of the second clamping block 11 that contacts the anchor chain is provided with anti-slip texture. The side of the second clamping block 11 away from the anchor chain is provided with multiple sets of hydraulic telescopic rods 9 and springs 10. The inner side of the bracket 1 is provided with a sprocket 3, and a drive shaft 4 is transversely arranged through the center of the sprocket 3. The outer diameter surface of the sprocket 3 is provided with a groove 301, and the contact surface between the groove 301 and the anchor chain is provided with anti-slip texture. The outer diameter of the drive shaft 4 is provided with a brake disc 401, and a brake 402 is provided below the brake disc 401. The brake disc 401 is disc-shaped, and the opening end of the brake 402 is large. At the height of the brake disc 401, a micro motor 403 is installed inside the brake 402, and the micro motor 403 is fixedly connected to an internal threaded sleeve 404 via a transmission belt. A threaded rod 405 is installed inside the brake 402, and the threaded rod 405 and the internal threaded sleeve 404 form a threaded rotation structure. A sliding groove 406 is provided at the lower end of the brake 402, and the brake 402 forms a sliding structure through the sliding groove 406. A first clamping block 5 is provided below the sprocket 3, and a rack 6 is provided on the side end face of the first clamping block 5. A drive motor 7 is provided on one side of the rack 6, and a gear 8 is provided at the output end of the drive motor 7.

[0026] A reducer 12 is installed inside the contact surface between the drive shaft 4 and the bracket 1, and a bearing is installed on the contact surface between the drive shaft 4 and the bracket 1. The sprocket 3 and the drive shaft 4 form a rotating structure with the bracket 1 through the bearing. The rack 6 and the gear 8 form a gear meshing structure. A chamfer is provided on one corner of the first clamping block 5. Anti-slip texture is provided on the side of the first clamping block 5 that contacts the anchor chain. The tangent of the anchor chain output by the sprocket 3 is on the same vertical plane as the chain hole 200 that is longitudinally inserted through the magnetic damping component 2. The anchor chain passes through the chain hole 200. The sprocket 3 will rotate as the anchor chain is lowered.

[0027] When braking the anchor chain, the sprocket 3 is slowed down by the reducer 12, and the anchor chain is further slowed down by the anti-slip texture on the sprocket 3. The anchor chain is braked by the first clamping blocks 5. The two sets of first clamping blocks 5 move in opposite directions by the hydraulic telescopic rod 9, thereby clamping the anchor chain by the first clamping blocks 5. The side of the first clamping block 5 that contacts the anchor chain is provided with anti-slip texture to brake the anchor chain. When braking the anchor chain, the sprocket 3 is braked first, and then the first clamping blocks 5 brake the anchor chain. During the above braking process, the magnetic damping component 2 is always working, and the anchor chain is braked by the strong magnetic force and the second clamping block 11. Through the triple braking effect, the braking effect is better. In addition, this device slows down the anchor chain first during the braking process, thereby preventing damage to the chain stopper and the anchor chain itself when the chain is braked in an emergency.

[0028] Working Principle: When using the ship's chain stopper, the device first brakes the anchor chain via the sprocket 3, and then via the first clamp 5. During this braking process, the magnetic damping component 2 remains operational, using strong magnetic force and the second clamp 11 to brake the anchor chain. This triple braking effect enhances the braking performance. Furthermore, during braking, the device first decelerates the anchor chain before braking it. The magnetic damping component 2 generates strong magnetic force through the electromagnet 201, which, through the hydraulic telescopic rod 9 and spring 10, causes the second clamp 11 to... The anchor chain is brought closer to the sprocket, thereby slowing it down so that the aforementioned braking element can brake it. The sprocket 3 rotates as the anchor chain is lowered. When braking the anchor chain, the sprocket 3 is slowed down by the reducer 12, and the anchor chain is slowed down by the anti-slip texture on the sprocket 3. The main braking of the anchor chain is achieved by the first clamping blocks 5. The hydraulic telescopic rod 9 moves the two sets of first clamping blocks 5 in opposite directions, thereby clamping the anchor chain. The side of the first clamping block 5 that contacts the anchor chain is provided with anti-slip texture to brake the anchor chain.

[0029] First, the chain is braked by the sprocket 3, and then the anchor chain is braked by the first clamp 5. During the above braking process, the magnetic damping component is always working, using strong magnetic force and the second clamp 11 to brake the anchor chain. Through the triple braking effect, the braking effect is better. In addition, during the braking process, this device first decelerates the anchor chain, thereby preventing damage to the chain stopper and anchor chain when the chain is braked in an emergency.

Claims

1. A ship chain stop, comprising a support (1), characterized in that, A magnetic damping assembly (2) is provided at the bottom of the bracket (1). A chain hole (200) is longitudinally provided through the magnetic damping assembly (2), and the chain hole (200) has the same shape as the anchor chain. An electromagnet (201) is embedded in the inner cavity of the magnetic damping assembly (2), and the electromagnet (201) is in close contact with the contact surface between the magnetic damping assembly (2) and the anchor chain. A sprocket (3) is provided on the inner side of the bracket (1), and a drive shaft (4) is transversely provided through the center of the sprocket (3). A groove (301) is provided on the outer diameter surface of the sprocket (3), and anti-slip texture is provided on the contact surface between the groove (301) and the anchor chain. The outer diameter of the drive shaft (4) is provided with... There is a brake disc (401), and a brake brake (402) is provided below the brake disc (401). A first clamping block (5) is provided below the sprocket (3), and a rack (6) is provided on the side end face of the first clamping block (5). A drive motor (7) is provided on one side of the rack (6), and a gear (8) is provided at the output end of the drive motor (7). A hydraulic telescopic rod (9) is provided on the side of the magnetic damping assembly (2) that contacts the anchor chain, and a spring (10) is provided around the outer diameter of the hydraulic telescopic rod (9). A second clamping block (11) is provided at one end of the hydraulic telescopic rod (9), and an anti-slip texture is provided on the side of the second clamping block (11) that contacts the anchor chain. The side of the two clamping blocks (11) away from the contact anchor chain is provided with multiple sets of hydraulic telescopic rods (9) and springs (10); a reducer (12) is provided inside the contact surface between the drive shaft (4) and the bracket (1), and a bearing is provided on the contact surface between the drive shaft (4) and the bracket (1). The sprocket (3) and the drive shaft (4) form a rotating structure with the bracket (1) through the bearing; the brake disc (401) is disc-shaped, and the opening end of the brake brake (402) is larger than the height of the brake disc (401). A micro motor (403) is provided inside the brake brake (402), and the micro motor (403) is fixedly connected to an internal threaded sleeve (404) through a transmission belt. The brake (402) is provided with a threaded rod (405) inside, and the threaded rod (405) and the inner threaded sleeve (404) form a threaded rotation structure. The lower end of the brake (402) is provided with a sliding groove (406), and the brake (402) forms a sliding structure through the sliding groove (406). The rack (6) and the gear (8) form a gear meshing structure, and one corner of the first clamping block (5) is provided with a chamfer. The side of the first clamping block (5) that contacts the anchor chain is provided with anti-slip texture. The tangent of the output anchor chain of the sprocket (3) is on the same vertical plane as the chain hole (200) that is longitudinally provided through the magnetic damping component (2), and the anchor chain passes through the chain hole (200).

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