Hydraulic chain controller for large container ship

Abstract

The utility model relates to the field of large ships, and provides a hydraulic chain controller for a large container ship. The body comprises a pair of supporting plates, the pair of supporting plates are fixedly welded to a deck of the container ship, a cable lifter is rotationally supported between the pair of supporting plates through a rotating shaft, a knife switch is installed between the tops of the pair of supporting plates, one end of the knife switch is hinged to one side of the top of each supporting plate through a pin shaft, and the other end of the knife switch is hinged to the other side of the top of each supporting plate through a pin shaft. The end, hinged to the supporting plate, of the knife switch is connected with a balance weight device, the balance weight device comprises a balance weight rod, and a hydraulic telescopic cylinder is installed between the balance weight rod and the body. The hydraulic station is controlled through the operating rod in the control box, jacking and recycling of the oil cylinder are achieved, so that opening and closing of the knife switch are achieved, a sailor does not need to operate the knife switch body, and the safety in the ship operation process is improved. According to the technical scheme, the structure is simple, manufacturing cost is low, and operation is labor-saving and convenient.

Description

Technical Field

[0001] This utility model relates to the field of large ships, specifically to a hydraulic chain stopper for large container ships. Background Technology

[0002] With the increasing size of ships, the corresponding equipment has also grown in size, and the selection of anchor chains determines the size of the chain catchers. Existing chain catchers rely on manual operation by crew members using a lever to open and close. Large chain catchers have large and heavy levers, requiring significant strength from crew members to operate. Although the levers have counterweights, it is difficult to control the force manually during operation. When the lever is operated to a certain point, the torque on both sides of the shaft changes, causing the counterweight side to accelerate downwards. Combined with the significant impact of the anchor chain, this makes operation extremely inconvenient and increases the risk of injury from over-leveraging. Summary of the Invention

[0003] In order to meet the matching requirements of chain stoppers for large container ships and solve the problems of difficult operation and safety hazards of existing chain stoppers, this utility model provides a hydraulic chain stopper for large container ships.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A hydraulic chain stop for large container ships includes a main body, which comprises a pair of support plates fixedly welded to the deck of the container ship. An anchor chain wheel is rotatably supported between the pair of support plates via a pivot. The outer circumference of the anchor chain wheel has a chain groove that mates with the anchor chain. A chuck is installed between the tops of the pair of support plates. One end of the chuck is hinged to one side of the top of the pair of support plates via a pin. When the chuck is closed, the chuck and the anchor chain wheel limit the anchor chain. The other end of the chuck is connected to the other side of the top of the pair of support plates via a limiting pin. A counterweight device is connected to the hinged end of the chuck to the support plates. The counterweight device includes a counterweight rod, which is integral with the chuck or fixedly welded to it. The counterweight rod and the chuck form an obtuse angle and are inclined upwards. A counterweight barrel is fixedly installed at the end of the counterweight rod, and the counterweight barrel contains counterweights. A hydraulic telescopic cylinder is installed between the counterweight rod and the main body. The hydraulic telescopic cylinder is connected to a hydraulic station and a control box.

[0006] Furthermore, the rotating shaft is fixedly installed on the main body, the anchor chain wheel is clearance-fitted with the rotating shaft, and oil holes are respectively provided on both end faces of the rotating shaft to connect the mating surfaces of the rotating shaft and the anchor chain wheel.

[0007] Furthermore, the guillotine includes a pair of parallel blades, which are connected as a whole by a connector, and the pair of blades are correspondingly engaged with a pair of support plates.

[0008] Furthermore, the guillotine is connected to a pair of parallel counterweights, each counterweight being connected to a hydraulic telescopic cylinder.

[0009] Furthermore, an upper mounting base is installed on the counterweight rod, and a lower support base is installed on the support plate. The two ends of the hydraulic telescopic cylinder are respectively connected to the upper and lower support bases by bolts.

[0010] Furthermore, a limit rod is installed on the outside of the counterweight barrel. The limit rod is parallel to the axis of the counterweight barrel. When the guillotine rotates, the limit rod is limited by the limit boss on the main body.

[0011] Furthermore, a support base is welded and installed on the top of a pair of support plates of the main body near the counterweight rod, and each support base is equipped with an anchor chain hook.

[0012] Furthermore, the anchor chain hook includes an upper screw, a lower screw, and a threaded sleeve. The upper screw and the lower screw are respectively threadedly connected to the threaded sleeve. The end of the upper screw is rotatably mounted on the support base by a bolt. The end of the lower screw is provided with a U-shaped connecting part or a hook, and the U-shaped connecting part is equipped with a threaded pin.

[0013] Furthermore, a connecting rod is installed between the pair of anchor chain hooks, the connecting rod passing through the chain hole of the anchor chain, and both ends of the connecting rod being connected to threaded pins respectively.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are as follows: The hydraulic station is controlled by the operating lever inside the control box, enabling the lifting and retraction of the cylinder, thereby opening and closing the gate. This eliminates the need for crew operation of the gate itself, improving safety during ship operation. The counterweight structure design reduces the power required for opening the gate, facilitating its opening. Furthermore, the installation of a pair of anchor chain hooks provides limiting support for the anchor chain when the gate is closed, reducing the impact of anchor chain swaying on the gate. This technical solution has a simple structure, low manufacturing cost, and is labor-saving and convenient to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Body, 2. Anchor chain wheel, 3. Knife gate, 4. Connecting plate, 5. Rotating shaft, 6. Oil hole, 7. Tilting shaft, 8. Limit pin, 9. Counterweight rod, 10. Counterweight barrel, 11. Limit rod, 12. Hydraulic telescopic cylinder, 13. Hydraulic station, 14. Control box, 15. Support base, 16. Anchor chain hook, 161. Upper screw, 162. Lower screw, 163. Threaded sleeve, 164. U-shaped connecting part. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0019] like Figure 1-2 As shown, a hydraulic chain catcher for large container ships includes a body 1, an anchor chain wheel 2 installed inside the body, and a guillotine 3 installed on top of the body 1. The anchor chain is guided and extended by the anchor chain wheel 2. When the guillotine 3 is closed, the gap between the guillotine 3 and the chain groove on the outer surface of the anchor chain wheel 2 is less than the minimum passage size of the anchor chain, thus locking the anchor chain.

[0020] The main body 1 consists of a pair of support plates. The bottom surfaces of the support plates are fixedly welded to the deck of the container ship. The sides of the support plates are reinforced to the deck by welding with ribs. The top and lower middle parts of the two support plates are connected and reinforced by connecting plates 4. A rotating shaft 5 is fixedly installed between the pair of support plates, and the anchor chain wheel 2 is supported by rotating the shaft 5. The two ends of the rotating shaft 5 extend out of the outside of the support plates and are fixed by a threaded structure. The anchor chain wheel 2 is clearance-fitted with the rotating shaft. The two end faces of the rotating shaft are respectively provided with oil holes 6 connecting the mating surfaces of the rotating shaft and the anchor chain wheel. Lubricating oil is injected through the oil holes 6 to lubricate the inner hole of the anchor chain wheel 2 and the outer circular surface of the rotating shaft 5, thereby reducing friction.

[0021] The gate 3 is installed between the tops of a pair of support plates, directly above the anchor chain wheel 2. The gate 3 includes a pair of parallel blades connected as a whole by a connector. A tilting shaft 7 is installed on the top of the pair of support plates near the anchor chain output. The pair of parallel blades of the gate 3 rotate around the tilting shaft 7 to open and close the gate. When the gate is closed, the other end of the gate is limited by a limiting pin 8 at the top of the pair of support plates, maintaining the gate in a closed state. A counterweight device is connected to the hinged end of the gate 3 to the support plates. The counterweight device and the gate are distributed on both sides of the tilting shaft 7. The counterweight device includes a pair of counterweight rods 9, which are integral with the gate 3 or fixedly welded to it. The counterweight rods 9 and the gate 3 form an obtuse angle and tilt upwards. A counterweight barrel 10 is fixedly installed at the end of the pair of counterweight rods 9. An injection port is provided on one side of the counterweight barrel 10, which contains counterweights. The counterweight device serves to reduce the power required to open the switch using the lever principle, preventing the switch from becoming stuck and difficult to open when the switch is jammed with the anchor chain. A limit rod 11 is installed on the outside of the counterweight barrel 10. The limit rod 11 is parallel to the axis of the counterweight barrel 10. When the switch 3 rotates, the limit rod 11 engages with the limit boss on the main body 1 to prevent the counterweight barrel 10 from colliding with the main body and causing damage.

[0022] To enable remote opening or closing of the switch, a hydraulic telescopic cylinder 12 is installed between the counterweight rod 9 and the main body. Each counterweight rod 9 has an upper mounting base, and each support plate has a lower support base. The two ends of the hydraulic telescopic cylinder 12 are connected to the upper and lower support bases respectively via bolts. The hydraulic telescopic cylinder 12 is connected to a hydraulic power unit 13, which in turn is connected to a control box 14. Operation of the control box 14 controls the extension and retraction of the hydraulic telescopic cylinder 12, thereby achieving the closing and opening of the switch 3.

[0023] Support seats 15 are welded and installed on the top of a pair of support plates of the main body 1, near the counterweight rod. Anchor chain hooks 16 are installed on the sides of each support seat 15. The anchor chain hook includes an upper screw 161, a lower screw 162, and a threaded sleeve 163. The upper screw 161 and the lower screw 162 are threadedly connected to the threaded sleeve 163. The length of the hook can be adjusted by rotating the threaded sleeve 163. The end of the upper screw 161 is rotatably installed on the support seat 15 by bolts. The end of the lower screw 162 is provided with a U-shaped connecting part 164 or a hook. A threaded pin is installed at the opening of the U-shaped connecting part. A connecting rod or wire rope is installed between a pair of anchor chain hooks. The connecting rod passes through the chain hole of the anchor chain, and the two ends of the connecting rod are connected to the threaded pins respectively to achieve limiting support for the anchor chain in the closed state and reduce its swaying in the free state.

Claims

1. A hydraulic chain catcher for large container ships, comprising a body, the body including a pair of support plates, the pair of support plates being fixedly welded to the deck of the container ship, an anchor chain wheel being rotatably supported between the pair of support plates via a rotating shaft, the outer circumference of the anchor chain wheel being provided with a chain groove that mates with the anchor chain; a guillotine is installed between the tops of the pair of support plates, characterized in that, One end of the guillotine is hinged to one side of the top of a pair of support plates via a pin. When the guillotine is closed, the guillotine and the anchor chain wheel limit the anchor chain. The other end of the guillotine is connected to the other side of the top of the pair of support plates via a limiting pin. A counterweight device is connected to the hinged end of the guillotine and the support plates. The counterweight device includes a counterweight rod, which is integral with the guillotine or fixedly welded to the guillotine. The counterweight rod forms an obtuse angle with the guillotine and is inclined upwards. A counterweight bucket is fixedly installed at the end of the counterweight rod, and the counterweight bucket contains a counterweight. A hydraulic telescopic cylinder is installed between the counterweight rod and the main body. The hydraulic telescopic cylinder is connected to a hydraulic station and a control box.

2. The hydraulic chain catcher for large container ships according to claim 1, characterized in that, The rotating shaft is fixedly installed on the main body, and the anchor chain wheel is clearance-fitted with the rotating shaft. Oil holes are provided on both ends of the rotating shaft to connect the mating surfaces of the rotating shaft and the anchor chain wheel.

3. The hydraulic chain stopper for large container ships according to claim 1, characterized in that, The guillotine includes a pair of parallel blades, which are connected as a whole by a connector, and the pair of blades are correspondingly engaged by a pair of support plates.

4. The hydraulic chain stopper for large container ships according to claim 3, characterized in that, The guillotine is connected to a pair of parallel counterweights, and each counterweight is connected to a hydraulic telescopic cylinder.

5. The hydraulic chain stopper for large container ships according to claim 4, characterized in that, The counterweight rod is equipped with an upper mounting base, and the support plate is equipped with a lower support base. The two ends of the hydraulic telescopic cylinder are respectively connected to the upper and lower support bases by bolts.

6. The hydraulic chain stopper for large container ships according to claim 1, characterized in that, A limit rod is installed on the outside of the counterweight barrel. The limit rod is parallel to the axis of the counterweight barrel. When the guillotine is rotated, the limit rod is limited by the limit boss on the main body.

7. The hydraulic chain stopper for large container ships according to claim 1, characterized in that, Support seats are welded and installed on the top of a pair of support plates of the main body near the counterweight rod, and each support seat is equipped with an anchor chain hook.

8. The hydraulic chain stopper for large container ships according to claim 7, characterized in that, The anchor chain hook includes an upper screw, a lower screw, and a threaded sleeve. The upper screw and the lower screw are respectively threaded to the threaded sleeve. The end of the upper screw is rotatably mounted on the support base by a bolt. The end of the lower screw is provided with a U-shaped connecting part or a hook, and the U-shaped connecting part is equipped with a threaded pin.

9. The hydraulic chain stopper for large container ships according to claim 8, characterized in that, A connecting rod is installed between the pair of anchor chain hooks, the connecting rod passing through the chain hole of the anchor chain, and the two ends of the connecting rod being connected to threaded pins respectively.

Images