Anchor chain lifter and using method thereof

Abstract

The invention provides an anchor chain lifter and a using method thereof, and relates to the field of ship anchor chains. The anchor chain lifter comprises an upper reinforcing table and a lower reinforcing table, the upper reinforcing table and the lower reinforcing table are both fixedly installed on a ship body deck, the anchor chain lifter comprises a cross-shaped driving assembly fixedly installed on the upper reinforcing table, an anchor chain direction detection assembly installed on the bottom face of the lower reinforcing table and an anchor storage assembly, and two anchor chain holes are formed in each reinforcing table. The anchor chain hole downwards penetrates through the reinforcing table. According to the anchor chain lifter and the using method thereof, the cross-shaped driving assembly is arranged, the anchor chain can be longitudinally winched and downwards transmitted under the limited area, the winching force is enough, the falling-off problem is basically avoided, and the anchor chain direction detection assembly is arranged, so that a middle-sized ship without an automatic anchor weighing device can simply observe the anchor chain, and the anchor chain lifting device is convenient to use. And the anchor storage assembly is arranged, so that the probability that the anchor chain is reversely pulled when the brake fails is greatly reduced.

Description

Technical Field

[0001] The 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 links. Depending on whether there are stays in the middle of the links, they are divided into stay anchor chains and no stay anchor chains. Anchor chains can be made by forging, casting and welding. Marine anchor chains are made up of several "sections", each section is 25.0 to 27.5 meters long, and the sections are connected by links or shackles. After the anchor is hoisted, the anchor chain is stored in the anchor chain locker at the bow. The specifications of the anchor chain are calculated according to the ship construction standards. The anchor chain is a chain connecting the anchor and the hull, used to transmit and buffer the external forces on the ship.

[0003] The anchor chain hoist is also called the windlass. The windlass is a mechanical device installed on the ship for collecting and releasing the anchor. Usually the windlass includes a frame, a chain wheel, a motor, a brake device and a reduction assembly. The reduction assembly is arranged on the frame. The reduction assembly has an input shaft and an output shaft. The chain wheel and the brake device are both arranged on the output shaft. The brake device is used to brake the chain wheel. The input shaft of the reduction assembly is connected to the output shaft of the motor so that the power output by the motor can be transmitted to the chain wheel through the reduction assembly to realize the operation of collecting and releasing the anchor chain.

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

[0005] 1. The anchoring and anchoring technology of large ships is basically mature, because large ships have a favorable position to install anchor heaves, so large machinery can be used to winch the anchor chain, while small ships can basically use simple cables to tie to shore piles. However, only 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, making the anchoring depth shallow.

[0006] Second, when the anchor chain is dropped, part of it is basically flat on the seabed. Therefore, when raising the anchor, large ships can know the state 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 raising the anchor. Medium-sized ships often need the captain's experience to judge the position of the anchor chain, and then start the engine to repeatedly confirm the direction of the anchor chain to achieve the raising of the anchor. This method is slow and the fuel consumption will also increase. 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 position detection assembly installed on the bottom surface of the lower reinforcement platform, and an anchor storage assembly.

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

[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 table. 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, push rods are fixedly installed on both sides of the rotating shaft, and push pins are fixedly installed on the outer side of one end of the push rod away from the rotating shaft, 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 C-type clamps, 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 contracted state at this time.

[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 comprises 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 machines 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 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 changes.

[0021] S3: According to the change in the angle between the anchor pipe and the reinforcement platform, the ship engine is controlled to move forward, and the angle of the anchor pipe is constantly observed.

[0022] S4: Determine the remaining length according to the number of anchor chain sections 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, the vessel continues to move 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 the method of using the same are provided with a cross drive assembly. When winding up the anchor chain, two mutually transmitting first drive wheels can clamp the anchor chain longitudinally for lifting, and another second drive wheel performs a second transmission lifting at the top. The anchor chain can be longitudinally hoisted and transmitted downward in a limited area, and the hoisting force is sufficient. 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 state and the second drive wheel has a sufficient wrap angle, the anchor chain will not slip, and when the 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 setting an anchor chain orientation detection component, the anchor chain is pulled by the first driving wheel and the second driving wheel along the anchor pipe, when the anchor chain runs to the non-vertical part, the angle of the anchor pipe will change, according to the angle change between the anchor pipe and the reinforcement platform, the ship engine is controlled to operate, the ship moves forward, and then the angle of the anchor pipe is constantly observed, the remaining length is judged according to the number of sections of the pulled out anchor chain, and the anchor pipe is kept 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, and then when the anchor pipe is in a vertical state, the ship continues to move forward, the anchor claw can be pushed out from the seabed, so that medium-sized ships without automatic anchoring can complete smooth anchoring based on simple observation.

[0027] 3. The anchor chain hoist and the method of using the same are provided with an anchor storage assembly, which is arranged under 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 one end in the water to pull out the anchor chain in the anchor storage assembly due to gravity. Therefore, when the brake fails, the probability of reverse pulling of the anchor chain is greatly reduced.

[0028] 4. The anchor chain hoist and the method of using the same are provided with an anchor pipe and a hydraulic cylinder. The hydraulic cylinder can push the anchor pipe to change the angle of the anchor pipe. When the anchor chain is fully retracted, the hydraulic cylinder makes the anchor pipe rise horizontally, and the anchor claw can be suspended in the air, 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 It is 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 It 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 It 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 position detection assembly of the present invention;

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

[0038] In the figure: 1. reinforcement table; 2. cross drive assembly; 201. first drive wheel; 202. second drive wheel; 203. reduction drive machine; 204. chain groove; 205. gear ring; 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 the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work 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 clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. 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 Figure 1-Figure 9As shown, an anchor chain hoist comprises two upper and lower reinforcement platforms 1, both of which are fixedly mounted on the ship deck, and comprises a cross drive assembly 2 fixedly mounted on the upper reinforcement platform 1, an anchor chain position detection assembly 3 and an anchor storage assembly 4 mounted on the bottom surface of the lower reinforcement platform 1. Two anchor chain holes 5 are arranged on each reinforcement platform 1, and the anchor chain holes 5 penetrate the reinforcement platform 1 downward. 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 both 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 respectively.

[0044] A groove for passing the anchor chain is cut on the hull deck at the location where the reinforcement platform 1 is installed, and the deck at this location can reach the water surface directly downward. The reinforcement platform 1 is fixed to the deck with multiple sets of stud bolts, and a sufficiently strong connection force must be ensured 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 distributed in 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 be stuck together into a complete anchor chain.

[0047] The anchor chain orientation detection component 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. 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 a C-type clamp 307. When the anchor pipe 301 is vertical 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 contracted 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 another 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 push pin 306 to avoid the influence of seawater corrosion.

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

[0050] The two first drive wheels 201 always rotate synchronously. When one of the first drive wheels 201 is driven, the other one will also follow. When the two first drive wheels 201 are driven at a synchronous speed, the anchor chain can be pulled synchronously, and the risk of the anchor chain falling off can be greatly reduced. The small gear 206 can further amplify the torque when it is engaged with the large gear. In addition, a rain cover is fixed to the outside of the first drive wheel 201. The rain cover can also be used to set up the axle of the small gear 206, and can also be used to protect the first drive wheel 201, and can also play the role of protecting the crew again, avoiding damage from the first drive wheel 201 and the anchor chain fluctuation.

[0051] Two load-bearing frames A207 are provided on the outer side 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 outer side 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 traction and change the angle of the anchor chain. They can operate in a very small installation environment and are not inferior to traditional inclined anchor chain traction machines.

[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 extension and rotation direction of 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 to change 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. The motor 6 can be used to change the angle of the hydraulic cylinder 302.

[0057] The anchor storage assembly 4 comprises 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 tube 401 is used to receive the anchor chain after winding. In the actual installation environment, the anchor guide tube 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 tube 401 can be used as a corner, and the guiding equipment can be installed later. The length or bending state of the anchor guide tube 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, start the two reduction drive machines 203 to rotate the first drive wheel 201 and the second drive wheel 202. The two first drive wheels 201 can clamp an anchor chain together to lift it, and the second drive wheel 202 cooperates to guide the anchor chain downward, forming a three-point anchoring;

[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 operate so that the ship moves forward, and the angle of the anchor pipe 301 is constantly observed;

[0065] S4: judging the remaining length according to the number of sections of the anchor chain pulled out, and continuing to keep the anchor pipe 301 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;

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

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the 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 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.

[0069] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anchor chain hoist, characterized in that: The invention comprises two upper and lower reinforcement platforms (1), both of which are fixedly mounted on the ship deck, and comprises a cross drive assembly (2) fixedly mounted on the upper reinforcement platform (1), an anchor chain position 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) penetrate downward through the reinforcement platform (1); The cross drive assembly (2) comprises 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 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) respectively.

2. The anchor chain hoist according to claim 1, characterized in that: 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); and push rods (305) are fixedly installed on both sides of the rotating shaft (304) on the bracket (303); and the push rods (305) are fixedly installed on the two sides of the bracket (303). A push pin (306) is fixedly installed on the outer side of one end of (305) away from the rotating shaft (304). Two hydraulic cylinders (302) are provided, and the fixed ends thereof are hinged to the bottom surface of the reinforcement platform (1) below, and the movable ends thereof are fixedly installed with a C-shaped clamp (307). When the anchor pipe (301) is vertical 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-shaped clamp (307), and the hydraulic cylinder (302) is in a contracted state.

3. The anchor chain hoist according to claim 2, 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; two reduction drive machines (203) are provided; any one 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) meshes with the gear ring (205) outside 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) outside the second drive wheel (202).

4. The anchor chain hoist according to claim 3, 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 machine (203) is fixed on the load-bearing frames B (208).

5. The anchor chain hoist according to claim 2, characterized in that: A placement groove (308) is provided on one side of the upper end of the anchor pipe (301), and the placement groove (308) is located on the side of the anchor pipe (301) in the extension and rotation direction of the hydraulic cylinder (302), and a drag reduction ring (309) is fixedly installed on the bottom of the anchor pipe (301).

6. The anchor chain hoist according to claim 2, 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).

7. The anchor chain hoist according to claim 1, characterized in that: The anchor storage assembly (4) comprises 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).

8. The anchor chain hoist according to claim 2, characterized in that: A chain washing water pipe (7) is installed on the anchor guide pipe (301).

9. A method for using the anchor chain hoist according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, two reduction drive machines (203) are started to rotate the first drive wheel (201) and the second drive wheel (202), so that 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, so as to achieve a three-point anchoring; 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 according to the number of sections of the anchor chain pulled out, and continuing to keep the anchor pipe (301) 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; S5: Then, when the anchor pipe (301) is in a vertical state, the vessel continues to move forward to push the anchor claw out from the seabed.

Images