An anchor chain lifter and method of use thereof

Abstract

The application provides an anchor chain lifter and a use method thereof, and relates to the field of ship anchor chains. The anchor chain lifter comprises two reinforcing tables arranged in an upper and lower mode, both of which are fixedly installed on a ship deck, a cross driving assembly fixedly installed on the upper reinforcing table, an anchor chain orientation detection assembly installed on the bottom surface of the lower reinforcing table, and an anchor storage assembly. Two anchor chain holes are arranged on the reinforcing tables and penetrate the reinforcing tables downward. The anchor chain lifter and the use method thereof can longitudinally wind the anchor chain and downwardly transmit the anchor chain under the limited area through the cross driving assembly, the winding strength is sufficient, and the problem of falling off basically does not occur. The anchor chain orientation detection assembly is arranged, so that the medium-sized ships without automatic anchor lifting can be smoothly lifted according to simple observation. The anchor storage assembly is arranged, so that the probability of the reverse pulling of the anchor chain is greatly reduced when the brake fails.

Description

Technical Field

[0001] The present invention relates to the field of ship anchor chains, in particular to an anchor chain hoist and a use method thereof. Background Art

[0002] Anchor chains are made up of many linked links and are categorized as either gusseted or non-gusseted, depending on whether or not there are intermediate links. Anchor chains can be manufactured by forging, casting, and welding. Marine anchor chains are composed of several "sections," each 25.0 to 27.5 meters long, connected by links or shackles. After the anchor is hoisted, the anchor chain is stored in the chain locker at the bow. Anchor chain specifications are calculated according to shipbuilding standards. The anchor chain connects the anchor to the hull, transmitting and buffering external forces acting on the ship.

[0003] Anchor chain hoist, also known as windlass, is a mechanical device installed on a ship for collecting and releasing anchors. Typically, an anchor chain hoist consists of a frame, an anchor chain pulley, a motor, a brake device, and a reduction assembly. The reduction assembly is mounted on the frame and has an input shaft and an output shaft. The anchor chain pulley and brake device are both mounted on the output shaft. The brake device is used to brake the anchor chain pulley. The input shaft of the reduction assembly is in driving connection with the output shaft of the motor, so that the power output by the motor can be transmitted to the anchor chain pulley through the reduction assembly to achieve the operation of collecting and releasing the anchor chain.

[0004] However, some of the current anchor chain hoists have the following problems:

[0005] 1. The anchoring and anchoring technology of large ships is basically mature. Because large ships have advantageous locations for installing anchor winches, they can use large machinery to winch the anchor chain. Small ships can basically use simple cables to tie to shore piles. However, medium-sized ships do not have a favorable environment for placing large winches, and they need to use heavy anchor chains. Therefore, most of them cannot store more anchor chains, resulting in a shallow anchoring depth.

[0006] Second, when the anchor chain is dropped, part of it is basically flat on the seabed. Therefore, when weighing anchor, large ships can know the status of the anchor chain at this time based on computing power, and can automatically set sail based on feedback, so that the anchor chain is gradually kept vertical, which is more conducive to weighing anchor. Medium-sized ships, on the other hand, often need the captain's experience to judge the position of the anchor chain, and then repeatedly confirm the direction of the anchor chain by starting the engine to weigh anchor. This method is slow and increases fuel consumption. Summary of the Invention

[0007] In view of the deficiencies in the prior art, the present invention provides an anchor chain hoist and a method of using the same, which solve the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anchor chain hoist includes two upper and lower reinforcement platforms, both of which are fixedly installed on the hull deck, including a cross drive assembly fixedly installed on the upper reinforcement platform, an anchor chain orientation detection assembly and an anchor storage assembly installed on the bottom surface of the lower reinforcement platform.

[0009] The reinforcement platform is provided with two anchor chain holes, which pass through the reinforcement platform downward.

[0010] The cross drive assembly includes two symmetrically distributed first drive wheels, a second drive wheel perpendicular to the axis of the two first drive wheels, and a reduction drive machine. The first drive wheel and the second drive wheel are both rotatably connected to the reinforcement platform. The reduction drive machine is used to drive the first drive wheel and the two first drive wheels to rotate relative to each other and the second drive wheel to rotate. The outer rings of the first drive wheel and the second drive wheel are each provided with a circle of chain grooves. The chain grooves of the two first drive wheels are arranged corresponding to each other. The two first drive wheels are located on both sides of one of the anchor chain holes. The chain grooves of the two first drive wheels correspond to the middle position of the anchor chain hole, and the chain grooves of the second drive wheel correspond to the two anchor chain holes respectively.

[0011] Preferably, the anchor chain orientation detection assembly includes an anchor tube and a hydraulic cylinder, a bracket is provided on one side of the anchor chain hole corresponding to the first driving wheel, the bracket is fixed to the bottom surface of the reinforcement platform below, a rotating shaft is fixedly installed on one side of the upper end of the anchor tube, the rotating shaft is rotatably connected to the bracket, and push rods are fixedly installed on both sides of the rotating shaft. A push pin is fixedly installed on the outer side of the end of the push rod away from the rotating shaft, and two hydraulic cylinders are provided, the fixed ends of which are hinged to the bottom surface of the reinforcement platform below, and the movable ends of which are fixedly installed with a C-type clamp. When the anchor tube is perpendicular to the reinforcement platform, the anchor tube is concentric with the anchor chain hole, the push rod with the push pin is against the C-type clamp, and the hydraulic cylinder is in a retracted state.

[0012] Preferably, gear rings are fixedly mounted on both sides of the outer rings of the first drive wheel and the second drive wheel, the gear rings mounted on the first drive wheel and the second drive wheel are respectively arranged concentrically with their own main shafts, the gear rings of the two first drive wheels are meshed with each other, the reduction drive machines are provided with two, any one of the reduction drive machines is provided with two output shafts, pinions are fixedly mounted on the two output shafts, the pinion on one of the output shafts of the reduction drive machine is meshed with the gear ring on the outside of one of the first drive wheels, and the pinion on the other output shaft of the reduction drive machine is meshed with the gear ring on the outside of the second drive wheel.

[0013] Preferably, two load-bearing frames A are provided on the outer side of the first driving wheel, the first driving wheel is installed on the upper end of the two load-bearing frames A, and its main shaft is rotatably connected to the load-bearing frames A. Two load-bearing frames B are provided on the outer side of the second driving wheel, the second driving wheel is installed on the upper end of the load-bearing frames B, and its main shaft is rotatably connected to the load-bearing frames B, and the reduction drive motor is fixed on the load-bearing frames B.

[0014] Preferably, a placement groove is provided on one side of the upper end of the anchor pipe, the placement groove is located on the side of the anchor pipe in the direction of extension and rotation of the hydraulic cylinder, and a drag reduction ring is fixedly installed on the bottom of the anchor pipe.

[0015] Preferably, a motor is installed at the hinge between the hydraulic cylinder and the reinforcement platform to change the angle between the hydraulic cylinder and the reinforcement platform.

[0016] Preferably, the anchor storage assembly includes an anchor guide tube, which is fixed to the bottom surface of the lower reinforcement platform and is located at the bottom of the anchor chain hole corresponding to the second driving wheel.

[0017] Preferably, a chain washing water pipe is installed on the anchor guide pipe.

[0018] A method for using an anchor chain hoist comprises the following steps:

[0019] S1: First, start the two reduction drive motors to rotate the first drive wheel and the second drive wheel. The two first drive wheels can jointly clamp an anchor chain to lift it, and the second drive wheel then cooperates to guide the anchor chain downward, forming a three-point anchoring.

[0020] S2: The anchor chain is pulled along the anchor pipe by the first driving wheel and the second driving wheel. When the anchor chain runs to the non-vertical part, the angle of the anchor pipe will change.

[0021] S3: According to the change in the angle between the anchor pipe and the reinforcement platform, control the operation of the ship engine to move the ship forward, and then constantly observe the angle of the anchor pipe.

[0022] S4: Determine the remaining length based on the number of sections of the anchor chain pulled out, and continue to keep the anchor pipe vertical. At this time, it can be basically determined that the anchor chain at the bottom of the riverbed has been pulled to a vertical state.

[0023] S5: Then, when the anchor pipe is in a vertical state, continue to move the vessel forward to push the anchor claw out from the seabed.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The anchor chain hoist and its use method are provided with a cross drive assembly. When winding the anchor chain, two mutually driving first drive wheels can longitudinally clamp the anchor chain for lifting, and another second drive wheel performs a second transmission lifting from above. In a limited area, the anchor chain can be longitudinally wound and transmitted downward with sufficient winding force. Under the premise of providing two sets of reduction drive machines, the anchor chain can be lifted. Since the first drive wheel is in a clamping shape and the second drive wheel has a sufficient wrap angle, the anchor chain will not slip. When a brake is installed, the problem of falling off will basically not occur.

[0026] 2. The anchor chain hoist and the method of using the same, by providing an anchor chain orientation detection component, the anchor chain is pulled along the anchor pipe by the first drive wheel and the second drive wheel. When the anchor chain runs to a non-vertical portion, the angle of the anchor pipe changes. According to the angle change between the anchor pipe and the reinforcement platform, the ship's engine is controlled to operate to move the ship forward. Then, the angle of the anchor pipe is constantly observed, and the remaining length is determined according to the number of sections of the pulled-out anchor chain. The anchor pipe is kept vertical. At this point, it can be basically determined that the anchor chain at the bottom of the riverbed has been pulled to a vertical state. Then, when the anchor pipe is in a vertical state, the ship is continued to move forward, and the anchor claw can be pushed out from the seabed. Therefore, medium-sized ships that are not equipped with automatic anchoring can complete smooth anchoring by simple observation.

[0027] 3. The anchor chain hoist and its use method are provided with an anchor storage assembly, which is arranged below the deck and guided to the other side. Therefore, when the anchor chain is lifted to a certain extent, due to the balanced gravity, it is difficult for the anchor chain in the anchor storage assembly to be pulled out by gravity at one end in the water. Therefore, when the brake fails, the probability of the anchor chain being pulled back is greatly reduced.

[0028] 4. The anchor chain hoist and its use method are provided with an anchor pipe and a hydraulic cylinder. The hydraulic cylinder can push the anchor pipe and change the angle of the anchor pipe. When the anchor chain is fully retracted, the hydraulic cylinder makes the anchor pipe horizontal, which can suspend the anchor claw, thereby reducing the risk of the anchor chain being corroded by seawater. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 A top view of the structure of the present invention;

[0031] Figure 3 It is a front view of the structure of the present invention;

[0032] Figure 4 It is a side view of the structure of the present invention;

[0033] Figure 5 This is a structural diagram of the cross drive assembly of the present invention;

[0034] Figure 6 It is a partial structural diagram of the cross drive assembly of the present invention;

[0035] Figure 7 This is a structural diagram of the anchor chain position detection assembly of the present invention;

[0036] Figure 8 This is a structural diagram of the other side of the anchor chain orientation detection assembly of the present invention;

[0037] Figure 9 This is a partial structural diagram of the anchor chain orientation detection component of the present invention.

[0038] In the figure: 1. Reinforcement platform; 2. Cross drive assembly; 201. First drive wheel; 202. Second drive wheel; 203. Speed ​​reduction drive; 204. Chain groove; 205. Ring gear; 206. Pinion; 207. Load-bearing frame A; 208. Load-bearing frame B; 3. Anchor chain position detection assembly; 301. Anchor guide pipe; 302. Hydraulic cylinder; 303. Bracket; 304. Rotating shaft; 305. Push rod; 306. Push pin; 307. C-type clamp; 308. Placement groove; 309. Drag reduction ring; 4. Anchor storage assembly; 401. Anchor guide pipe; 5. Anchor chain hole; 6. Motor; 7. Chain washing water pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0043] like Figures 1-9As shown, an anchor chain hoist comprises two upper and lower reinforcement platforms 1, both fixedly mounted on the ship's deck. The hoist includes a cross drive assembly 2 fixedly mounted on the upper reinforcement platform 1, an anchor chain position detection assembly 3 mounted on the bottom surface of the lower reinforcement platform 1, and an anchor storage assembly 4. Each reinforcement platform 1 is provided with two anchor chain holes 5, extending downward through the reinforcement platform 1. The cross drive assembly 2 includes two symmetrically distributed first drive wheels 201, a second drive wheel 202 perpendicular to the axis of the two first drive wheels 201, and a reduction drive machine 203. The first drive wheel 201 and the second drive wheel 202 are both rotatably connected to the reinforcement platform 1. The reduction drive machine 203 is used to drive the first drive wheel 201 and the two first drive wheels 201 to rotate relative to each other and the second drive wheel 202 to rotate. The outer rings of the first drive wheel 201 and the second drive wheel 202 are each provided with a circle of chain grooves 204. The chain grooves 204 of the two first drive wheels 201 are arranged corresponding to each other. The two first drive wheels 201 are located on both sides of one of the anchor holes 5. The chain grooves 204 of the two first drive wheels 201 correspond to the middle position of the anchor hole 5, and the chain grooves 204 of the second drive wheel 202 correspond to the two anchor holes 5 respectively.

[0044] A groove for passing the anchor chain is cut into the hull deck at the location where the reinforcement platform 1 is installed, and the deck at this location can directly reach the water surface. The reinforcement platform 1 is fixed to the deck with multiple sets of stud bolts. It is necessary to ensure a sufficiently strong connection force so that the anchor chain hole 5 on the reinforcement platform 1 can pass through the deck.

[0045] A three-phase electric motor can be used inside the reduction drive 203, and the drive can be achieved by using a multi-stage reducer or a worm gear reducer. When the anchor chain is heavy enough, a hydraulic drive can also be used as a power output. Its main purpose is to drive the first drive wheel 201 and the second drive wheel 202 to rotate through the output shaft.

[0046] The chain groove 204 matches the shape of the anchor chain and is divided into two interconnected arrays of horizontal and vertical specifications. The anchor chain can be stuck out of the chain groove 204 when being pulled, and the chain grooves 204 of the two first driving wheels 201 can together be stuck into a complete anchor chain.

[0047] The anchor chain orientation detection assembly 3 includes an anchor pipe 301 and a hydraulic cylinder 302. A bracket 303 is provided on one side of the anchor chain hole 5 corresponding to the first driving wheel 201, and the bracket 303 is fixed to the bottom surface of the reinforcement platform 1 below. A rotating shaft 304 is fixedly installed on one side of the upper end of the anchor pipe 301, and the rotating shaft 304 is rotatably connected to the bracket 303. A push rod 305 is fixedly installed on both sides of the rotating shaft 304. A push pin 306 is fixedly installed on the outer side of the end of the push rod 305 away from the rotating shaft 304. There are two hydraulic cylinders 302, whose fixed ends are hinged to the bottom surface of the reinforcement platform 1 below, and whose movable ends are fixedly installed with a C-type clamp 307. When the anchor pipe 301 is perpendicular to the reinforcement platform 1, the anchor pipe 301 is concentric with the anchor chain hole 5, and the push rod 305 with the push pin 306 is against the C-type clamp 307. At this time, the hydraulic cylinder 302 is in a retracted state.

[0048] The anchor chain passes through the anchor pipe 301, and the hydraulic cylinder 302 is connected to the hydraulic system of the ship itself. The device itself can also be equipped with a hydraulic system to use a hydraulic motor instead of the reduction drive machine 203. The inner ring of the C-type clamp 307 connected to the hydraulic cylinder 302 is provided with grease or graphite gasket, which can also reduce the friction between the two when pushing the ejector pin 306 to avoid the influence of seawater corrosion.

[0049] Gear rings 205 are fixedly mounted on both sides of the outer rings of the first drive wheel 201 and the second drive wheel 202. The gear rings 205 mounted on the first drive wheel 201 and the second drive wheel 202 are respectively arranged concentrically with their own main shafts. The gear rings 205 of the two first drive wheels 201 are meshed with each other. There are two reduction drive machines 203. Any reduction drive machine 203 is provided with two output shafts. Pinions 206 are fixedly mounted on the two output shafts. The pinion 206 on one of the output shafts of the reduction drive machine 203 is meshed with the gear ring 205 on the outside of one of the first drive wheels 201, and the pinion 206 on the other output shaft of the reduction drive machine 203 is meshed with the gear ring 205 on the outside of the second drive wheel 202.

[0050] The two first drive wheels 201 always rotate synchronously. When one first drive wheel 201 is driven, the other will also follow. When the two first drive wheels 201 are driven at a synchronous speed, the anchor chain can be pulled synchronously, greatly reducing the risk of the anchor chain falling off. The small gear 206 can further amplify the torque when engaging the large gear. A rain cover is also fixed to the outside of the first drive wheel 201. The rain cover also serves to support the axle of the small gear 206 and protect the first drive wheel 201. It also protects the crew from damage caused by the fluctuations of the first drive wheel 201 and the anchor chain.

[0051] Two load-bearing frames A207 are provided on the outside of the first driving wheel 201. The first driving wheel 201 is installed on the upper ends of the two load-bearing frames A207, and its main shaft is rotatably connected to the load-bearing frames A207. Two load-bearing frames B208 are provided on the outside of the second driving wheel 202. The second driving wheel 202 is installed on the upper ends of the load-bearing frames B208, and its main shaft is rotatably connected to the load-bearing frames B208. The reduction drive motor 203 is fixed on the load-bearing frames B208.

[0052] The two first driving wheels 201 and the second driving wheel 202 are in a three-point traction state, which can longitudinally pull and change the angle of the anchor chain. It can operate in an extremely small installation environment and is not inferior to the traditional inclined anchor chain tractor.

[0053] A placement groove 308 is provided on one side of the upper end of the anchor pipe 301 . The placement groove 308 is located on the side of the anchor pipe 301 in the direction of extension and rotation by the hydraulic cylinder 302 . A drag reduction ring 309 is fixedly installed on the bottom of the anchor pipe 301 .

[0054] The drag reducing ring 309 can prevent the anchor chain from being blocked by the bottom of the anchor pipe 301 when the anchor chain is stretched, thereby reducing the resistance of the anchor chain when it moves. The placement groove 308 can allow the anchor chain to pass smoothly when the anchor pipe 301 is tilted, thereby reducing friction during operation.

[0055] A motor 6 is installed at the hinge between the hydraulic cylinder 302 and the reinforcement platform 1 for changing the angle between the hydraulic cylinder 302 and the reinforcement platform 1 .

[0056] The motor 6 here can also use the above-mentioned hydraulic system and be replaced by a hydraulic motor. However, a large torque is not required to drive the hydraulic cylinder 302 to change the angle, and the motor 6 can be used to change the angle of the hydraulic cylinder 302.

[0057] The anchor storage assembly 4 includes an anchor guide tube 401 , which is fixed to the bottom surface of the lower reinforcement platform 1 and is located at the bottom of the anchor chain hole 5 corresponding to the second driving wheel 202 .

[0058] The anchor guide pipe 401 is used to receive the anchor chain after being wound. In the actual installation environment, the anchor guide pipe 401 should be installed in the cabin below the deck. A container for storing the anchor chain can be installed at its lower part, or the anchor chain can be stored directly in the cabin. The anchor guide pipe 401 can be used as a corner, and the guide equipment can be installed later. The length or bending state of the anchor guide pipe 401 can be customized according to actual needs.

[0059] A chain washing water pipe 7 is installed on the anchor pipe 301.

[0060] The chain-washing water pipe 7 replaces the washer on the traditional ship and is directly installed in the chain-washing water pipe 7 , without the need to set an anchor pipe on the hull.

[0061] A method for using an anchor chain hoist comprises the following steps:

[0062] S1: First, the two reduction drive motors 203 are started to rotate the first drive wheel 201 and the second drive wheel 202. The two first drive wheels 201 can jointly clamp an anchor chain to lift it, and the second drive wheel 202 cooperates to guide the anchor chain downward, forming a three-point anchoring method;

[0063] S2: The anchor chain is pulled along the anchor pipe 301 by the first driving wheel 201 and the second driving wheel 202. When the anchor chain runs to the non-vertical part, the angle of the anchor pipe 301 changes.

[0064] S3: According to the change in the angle between the anchor pipe 301 and the reinforcement platform 1, the ship engine is controlled to move forward, and the angle of the anchor pipe 301 is constantly observed;

[0065] S4: Determine the remaining length based on the number of anchor chain sections pulled out, and continue to keep the anchor pipe 301 vertical. At this point, it can be basically determined that the anchor chain at the bottom of the riverbed has been pulled to a vertical state;

[0066] S5: Then, when the anchor pipe 301 is in a vertical state, the vessel is continued to move forward to push the anchor claw out from the seabed.

[0067] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0068] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0069] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anchor chain hoist, characterized by: The invention comprises two upper and lower reinforcement platforms (1), both of which are fixedly mounted on the hull deck, and comprises a cross drive assembly (2) fixedly mounted on the upper reinforcement platform (1), an anchor chain orientation detection assembly (3) and an anchor storage assembly (4) mounted on the bottom surface of the lower reinforcement platform (1); The reinforcement platform (1) is provided with two anchor chain holes (5), and the anchor chain holes (5) pass through the reinforcement platform (1) downward; The cross drive assembly (2) comprises a reduction drive machine (203), two symmetrically distributed first drive wheels (201), and a second drive wheel (202) perpendicular to the axis of the two first drive wheels (201). The first drive wheel (201) and the second drive wheel (202) are both rotatably connected to the reinforcement platform (1). The reduction drive machine (203) is used to drive the two first drive wheels (201) to rotate relative to each other and the second drive wheel (202) to rotate. The outer rings of the first drive wheel (201) and the second drive wheel (202) are each provided with a circle of chain grooves (204). The chain grooves (204) of the two first drive wheels (201) are arranged corresponding to each other. The two first drive wheels (201) are located on both sides of one of the anchor chain holes (5). The chain grooves (204) of the two first drive wheels (201) correspond to the middle position of the anchor chain hole (5), and the chain grooves (204) of the second drive wheel (202) correspond to the two anchor chain holes (5). The anchor chain orientation detection assembly (3) comprises an anchor pipe (301) and a hydraulic cylinder (302). A bracket (303) is provided on one side of the anchor chain hole (5) corresponding to the first driving wheel (201). The bracket (303) is fixed to the bottom surface of the reinforcement platform (1) below. A rotating shaft (304) is fixedly installed on one side of the upper end of the anchor pipe (301). The rotating shaft (304) is rotatably connected to the bracket (303). A push rod (305) is fixedly installed on both sides of the rotating shaft (304) on the bracket (303). A push pin (306) is fixedly installed on the outer side of the end of the push rod (305) away from the rotating shaft (304). There are two hydraulic cylinders (302), whose fixed ends are hinged to the bottom surface of the reinforcement platform (1) below, and whose movable ends are fixedly installed with C-type clamps (307). When the anchor guide tube (301) is vertical to the reinforcement platform (1), the anchor guide tube (301) is concentric with the anchor chain hole (5), and the push rod (305) with the push pin (306) is against the C-type clamp (307). At this time, the hydraulic cylinder (302) is in a retracted state; the anchor storage assembly (4) includes an anchor guide tube (401), which is fixed to the bottom surface of the reinforcement platform (1) below and is located at the bottom of the anchor chain hole (5) corresponding to the second driving wheel (202).

2. The anchor chain hoist according to claim 1, characterized in that: Gear rings (205) are fixedly mounted on both sides of the outer rings of the first drive wheel (201) and the second drive wheel (202). The gear rings (205) mounted on the first drive wheel (201) and the second drive wheel (202) are respectively arranged concentrically with their own main shafts. The gear rings (205) of the two first drive wheels (201) mesh with each other. The reduction drive machine (203) is provided with two, and any reduction drive machine (203) is provided with two output shafts. Pinions (206) are fixedly mounted on both output shafts. The pinion (206) on one of the output shafts of the reduction drive machine (203) meshes with the gear ring (205) on the outside of one of the first drive wheels (201), and the pinion (206) on the other output shaft of the reduction drive machine (203) meshes with the gear ring (205) on the outside of the second drive wheel (202).

3. The anchor chain hoist according to claim 2, characterized in that: Two load-bearing frames A (207) are provided on the outer side of each of the first driving wheels (201). The first driving wheel (201) is mounted on the upper ends of the two load-bearing frames A (207), and its main shaft is rotatably connected to the load-bearing frames A (207). Two load-bearing frames B (208) are provided on the outer side of the second driving wheel (202). The second driving wheel (202) is mounted on the upper ends of the load-bearing frames B (208), and its main shaft is rotatably connected to the load-bearing frames B (208). The reduction drive motor (203) is fixed on the load-bearing frames B (208).

4. The anchor chain hoist according to claim 3, characterized in that: A placement groove (308) is provided on one side of the upper end of the anchor pipe (301). The placement groove (308) is located on the side of the anchor pipe (301) in the direction of extension and rotation by the hydraulic cylinder (302). A drag reduction ring (309) is fixedly installed on the bottom of the anchor pipe (301).

5. The anchor chain hoist according to claim 4, characterized in that: A motor (6) is installed at the hinge between the hydraulic cylinder (302) and the reinforcement platform (1) for changing the angle between the hydraulic cylinder (302) and the reinforcement platform (1).

6. The anchor chain hoist according to claim 5, characterized in that: A chain washing water pipe (7) is installed on the anchor guide pipe (301).

7. A method for using the anchor chain hoist according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: First, two reduction drive motors (203) are started to rotate the first drive wheel (201) and the second drive wheel (202). The two first drive wheels (201) can jointly clamp an anchor chain to lift it, and the second drive wheel (202) then cooperates to guide the anchor chain downward, forming a three-point anchoring method; S2: the anchor chain is pulled along the anchor pipe (301) by the first driving wheel (201) and the second driving wheel (202). When the anchor chain runs to the non-vertical part, the angle of the anchor pipe (301) changes; S3: According to the change in the angle between the anchor pipe (301) and the reinforcement platform (1), the ship engine is controlled to operate so as to move the ship forward, and the angle of the anchor pipe (301) is constantly observed; S4: judging the remaining length based on the number of sections of the anchor chain pulled out, and continuing to keep the anchor pipe (301) vertical. At this point, it can be basically determined that the anchor chain at the bottom of the riverbed has been pulled to a vertical state; S5: Then, when the anchor pipe (301) is in a vertical state, the vessel is continued to move forward to push the anchor claw out from the seabed.

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