Novel hatch cover hydraulic opening and closing device

Abstract

The utility model discloses a novel hatch cover hydraulic opening and closing device, which relates to the technical field of shipbuilding and comprises transmission equipment, a brake device and a hydraulic system. The transmission equipment comprises a driving chain wheel and a driven roller which are respectively arranged at two ends of a ship cabin opening, one end of a hatch cover plate above the ship cabin opening is connected with a round-link chain, and the round-link chain is meshed with the driving chain wheel; the other end of the hatch cover plate is connected with a traction rope, and the free end of the round-link chain is connected with the free end of the traction rope; the hydraulic system comprises a hydraulic motor and a hydraulic oil pump; the hydraulic motor is in transmission connection with the driving chain wheel; the hydraulic oil pump is connected with the hydraulic motor through an oil path; hydraulic locks are arranged on an input pipeline and an output pipeline of the hydraulic motor; the brake device comprises a brake band arranged on the driven roller and a brake oil cylinder in transmission connection with the brake band; the brake oil cylinder is further connected with the hydraulic motor through an oil way. The hatch cover plate solves the technical problem that a hatch cover plate in the prior art cannot be fixed at any position.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a novel hatch cover hydraulic opening and closing device. Background Art

[0002] Currently, many ships are responsible for the important task of transporting goods, equipment, and materials. The loading capacity of the ships is the key to determining the amount of material transported. When loading and unloading at the dock, whether the hatch cover opening and closing device can be opened or closed quickly is a key factor affecting whether the loading can be completed smoothly.

[0003] The existing technology drives the hatch cover to open and close through a motor. For the hatch cover opening and closing control, the oil motor drives the wire rope wheel, and the wire rope wheel drives the wire rope to realize the opening and closing control of the hatch cover. However, this transmission method is easy to slip between the wire rope and the wire rope wheel, and the transmission process causes serious wear on the wire rope, which reduces the life of the system. In addition, the hatch cover cannot be fixed at any position and does not have locking performance. Utility Model Content

[0004] The purpose of the utility model is to provide a novel hatch cover hydraulic opening and closing device in order to solve at least one of the above technical problems.

[0005] In the first aspect, the embodiment of the utility model provides a new type of hatch cover hydraulic opening and closing device, which is applied to the hatch cover plate above the ship's hatch; a guide rail is arranged above the ship's hatch, and the hatch cover plate can be slidably arranged on the guide rail; the new type of hatch cover hydraulic opening and closing device includes: a transmission device, a brake device and a hydraulic system; wherein, the transmission device includes a driving sprocket and a driven roller respectively arranged at both ends of the ship's hatch, one end of the hatch cover plate above the ship's hatch is connected to a round link chain, and the round link chain is meshed with the driving sprocket; the other end of the hatch cover plate is connected to A traction rope is connected, and the free end of the circular chain and the free end of the traction rope are connected together after passing through the active sprocket and the driven roller respectively; the hydraulic system includes a hydraulic motor and a hydraulic oil pump; the hydraulic motor is transmission-connected to the active sprocket, and the hydraulic oil pump is connected to the hydraulic motor through an oil circuit; hydraulic locks are provided on the input and output pipelines of the hydraulic motor; the brake device includes a brake belt arranged on the driven roller and a brake cylinder transmission-connected to the brake belt; the brake cylinder is also connected to the hydraulic motor through an oil circuit.

[0006] Furthermore, the traction rope comprises a steel wire rope.

[0007] Furthermore, a chain guide cylinder is sleeved on the round-link chain.

[0008] Further, the hydraulic system further includes: a pressure relay, a reversing valve, a relief valve, a stop valve, a throttle valve, and a fuel tank; wherein, the fuel tank is connected to the inlet pipeline of the hydraulic oil pump, the pressure relay is arranged between the fuel tank and the hydraulic oil pump, the outlet pipeline of the hydraulic oil pump is respectively connected to the hydraulic motor and the braking device, and the reversing valve, the throttle valve, and the stop valve are arranged on the outlet pipeline; a return pipeline is further connected between the outlet pipeline and the fuel tank, and the relief valve is arranged on the return pipeline.

[0009] Further, an oil suction coarse filter is further arranged on the inlet pipeline of the hydraulic oil pump, and an oil return fine filter is further arranged on the return pipeline; check valves are connected in parallel on the sides of the oil suction coarse filter and the oil return fine filter.

[0010] Further, the reversing valve includes a first reversing valve and a second reversing valve connected in parallel.

[0011] Further, the first reversing valve includes a three-position four-way electro-hydraulic reversing valve; the second reversing valve includes a three-position four-way manual reversing valve.

[0012] Further, the braking device further includes an emergency braking handwheel, a lever, a spring, a piston, and a piston rod; wherein, the spring and the piston are both arranged in the brake cylinder, the emergency braking handwheel is connected to the top end of the piston, the bottom end of the piston is connected to the piston rod, the piston rod passes through the bottom of the brake cylinder and is movably connected to the long end of the lever, and the short end of the lever is connected to the brake band.

[0013] Further, a control device is further included, and the control device includes a ship's cab control button and a ship's foredeck console.

[0014] The utility model provides a new type of hatch cover hydraulic opening and closing device, which realizes the rapid automatic opening or closing of the hatch cover based on hydraulic transmission technology and chain drive technology. The hatch cover can be locked at any position through the braking device, preventing the situation that the hatch cover sways back and forth under complex conditions and affecting the loading and unloading operation, effectively improving the opening and closing efficiency of the hatch cover of the transport ship, and alleviating the technical problem that the hatch cover in the prior art cannot be fixed at any position. Description of the Drawings

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Schematic diagram of a new type of hatch hydraulic opening and closing device provided by an embodiment of the present utility model;

[0017] Figure 2 Schematic diagram of a structural model of a ring chain meshing with a driving sprocket provided by an embodiment of the present utility model;

[0018] Figure 3 Schematic diagram of a braking device provided by an embodiment of the present utility model.

[0019] In the figure: 1, fuel tank; 2, suction coarse filter; 3, return fine filter; 4, check valve; 5, pressure relay; 6, stop valve; 7, hydraulic oil pump; 8, overflow valve; 9, first reversing valve; 10, second reversing valve; 11, throttle valve; 12, hydraulic lock; 13, braking device; 14, hydraulic motor; 15, driving sprocket; 16, chain guide cylinder; 17, ring chain; 18, hatch cover plate; 19, driven roller; 20, guide rail; 21, emergency braking handwheel; 22, braking oil cylinder; 23, spring; 24, piston; 25, piston rod; 26, oil pipe joint; 27, lever; 28, brake band; 29, towing rope. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Figure 1 is a schematic diagram of a new type of hatch hydraulic opening and closing device provided by an embodiment of the present utility model. This device is applied to the hatch cover plate 18 above the ship's hatch; a guide rail 20 is provided above the ship's hatch, and the hatch cover plate 18 is slidably arranged on the guide rail 20. Specifically, as Figure 1 shown, a new type of hatch hydraulic opening and closing device provided by an embodiment of the present utility model includes: a transmission device, a braking device 13, and a hydraulic system.

[0022] Specifically, the transmission device includes a driving sprocket 15 and a driven roller 19 respectively arranged at both ends of the ship's hatch, and one end of the hatch cover plate 18 above the ship's hatch is connected with a ring chain 17.

[0023] Figure 2 is a schematic diagram of a structural model of a ring chain meshing with a driving sprocket provided by an embodiment of the present utility model. As Figure 2 shown, the ring chain 17 meshes with the driving sprocket 15.

[0024] Specifically, as Figure 1 shown, a towing rope 29 is connected to the other end of the hatch cover 18, and the free ends of the endless chain 17 and the towing rope 29 are respectively passed through the driving sprocket 15 and the driven roller 19 and then connected together.

[0025] Preferably, the towing rope 29 includes a steel wire rope.

[0026] Specifically, as Figure 1 shown, a guide chain cylinder 16 is also sleeved on the endless chain 17 for protecting the endless chain 17.

[0027] Specifically, the hydraulic system includes a hydraulic motor 14 and a hydraulic oil pump 7; the hydraulic motor 14 is in transmission connection with the driving sprocket 15, and the hydraulic oil pump 7 is connected to the hydraulic motor 14 through an oil circuit; a hydraulic lock 12 is provided on the input and output pipelines of the hydraulic motor 14.

[0028] Preferably, as Figure 1 shown, the hydraulic lock 12 is a two-way hydraulic lock.

[0029] In the embodiment of the present utility model, the driving sprocket 15 is driven to rotate by the hydraulic motor 14, the driving sprocket 15 is engaged with the endless chain 17 for transmission, the hatch cover 18 is towed to move, and the driven roller 19 rolls with the steel wire rope to reduce frictional loss, assisting the driving sprocket 15 to complete the opening and closing of the hatch cover 18.

[0030] Specifically, as Figure 1 shown, the hydraulic system further includes: a pressure relay 5, a reversing valve, a relief valve 8, a stop valve 6, a throttle valve 11 and an oil tank 1.

[0031] Specifically, the oil tank 1 is connected to the inlet pipeline of the hydraulic oil pump 7, the pressure relay 5 is arranged between the oil tank 1 and the hydraulic oil pump 7, the outlet pipeline of the hydraulic oil pump 7 is respectively connected to the hydraulic motor 14 and the braking device 13, and a reversing valve, a throttle valve 11 and a stop valve 6 are provided on the outlet pipeline;

[0032] A return oil pipeline is also connected between the outlet pipeline and the oil tank 1, and a relief valve 8 is provided on the return oil pipeline.

[0033] Specifically, as Figure 1 shown, an oil suction coarse filter 2 is further provided on the inlet pipeline of the hydraulic oil pump 7, and a return oil fine filter 3 is further provided on the return oil pipeline; check valves 4 are connected in parallel on the sides of the oil suction coarse filter 2 and the return oil fine filter 3.

[0034] Preferably, as Figure 1 shown, the reversing valve includes a first reversing valve 9 and a second reversing valve 10 connected in parallel.

[0035] Preferably, the first reversing valve 9 comprises a three-position four-way electro-hydraulic reversing valve; and the second reversing valve 10 comprises a three-position four-way manual reversing valve.

[0036] In the embodiment of the utility model, the hydraulic oil pump 7 is mainly used to establish oil pressure and transport the hydraulic oil in the oil tank 1 to the entire pipeline system; the hydraulic motor 14 mainly provides power for opening and closing the hatch cover 18; the function of the reversing valve connected to the hydraulic oil pump 7 is to open and close the hatch cover 18 by changing the flow direction of the oil, and the function of the reversing valve connected to the brake device 13 is to determine the locking and releasing operation of the brake device 13 by changing the flow direction of the oil; adding a bidirectional hydraulic lock to the input and output pipelines of the hydraulic motor 14 can realize the locking of the hydraulic motor 14 at any position.

[0037] Figure 3 1 is a schematic diagram of a brake device according to an embodiment of the present utility model. Figure 3 As shown, the brake device 13 includes a brake belt 28 disposed on the driven roller 19 and a brake oil cylinder 22 that is transmission-connected to the brake belt 28. Specifically, the brake oil cylinder 22 is also connected to the hydraulic motor 14 through an oil circuit.

[0038] Specifically, Figure 3 As shown, the brake device 13 also includes an emergency brake handwheel 21 , a lever 27 , a spring 23 , a piston 24 and a piston rod 25 .

[0039] Among them, the spring 23 and the piston 24 are both arranged in the brake cylinder 22, the emergency brake handwheel 21 is connected to the top end of the piston 24, the bottom end of the piston 24 is connected to the piston rod 25, the piston rod 25 passes through the bottom of the brake cylinder 22 and is movably connected to the long end of the lever 27, and the short end of the lever 27 is connected to the brake belt 28.

[0040] like Figure 3 As shown, an oil pipe joint 26 is provided at the bottom end of the brake oil cylinder 22 , and the oil pipe joint 26 is connected to the oil outlet pipeline of the hydraulic oil pump 7 .

[0041] Specifically, when high-pressure hydraulic fluid is not introduced into the brake cylinder 22, under the elastic force of the spring 23, the piston 24 presses against the piston rod 25 and moves downward. The long end of the lever 27 moves downward under the downward thrust of the piston rod 25, and the short end of the lever 27 moves to the right, locking the brake band 28. At this time, the driven roller 19 cannot rotate, and the brake is in the normal braking state. When high-pressure hydraulic fluid is injected into the brake cylinder 22, the piston 24 and the piston rod 25 move upward under the action of the hydraulic pressure, compressing the spring 23. The long end of the lever 27 moves upward under the pulling force of the piston rod 25, and the short end of the lever 27 moves to the left, releasing the brake band 28. At this time, the driven roller 19 can rotate together with the driving sprocket 15 during the opening and closing operation of the hatch cover 18. In an emergency, the brake device 13 can be released by rotating the emergency brake handwheel 21.

[0042] Preferably, a new type of hatch hydraulic opening and closing device provided by an embodiment of the present invention further includes a control device, and the control device includes a control button in the ship's cab and a control console on the ship's foredeck.

[0043] Specifically, in the cab, there are a hatch cover opening button and a hatch cover closing button for controlling the motor, and a brake release button and a brake locking button for controlling the brake; on the foredeck, the control motor handle has three gears: opening, closing, and stopping, and the control brake handle has three gears: releasing, locking, and stopping.

[0044] Before use, first select whether to control in the cab or on the foredeck according to the actual needs at that time, and then start the hydraulic pump station. When in use, first release the brake using the brake device, then open the hatch cover to any required position, and then lock the brake using the brake device. In this way, loading and unloading operations can be carried out with confidence. In the case where problems with the equipment cannot be troubleshot immediately, the stop valve can be opened to open and close the hatch cover manually to ensure that the task can be completed smoothly.

[0045] As can be seen from the above description, an embodiment of the present invention provides a new type of hatch hydraulic opening and closing device, which has the following technical effects compared with the prior art:

[0046] 1) The difficulty of retrofitting the ship in the present invention is relatively small, and the practical feasibility of engineering implementation is relatively high;

[0047] 2) The present invention makes less modification to the hull and has less impact on the existing performance of the ship;

[0048] 3) The device provided by the present invention is simple to operate and has a relatively high transmission efficiency;

[0049] 4) The device provided by the present invention has relatively high reliability and strong safety;

[0050] 5) The device provided by the present utility model retains the manual opening and closing method, with relatively high redundancy.

[0051] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new type of hydraulic opening and closing device for a hatch cover, characterized in that, The hatch cover plate is applied to the hatch opening of a ship; a guide rail is arranged above the hatch opening of the ship, and the hatch cover plate can be slidably arranged on the guide rail; the new hatch cover hydraulic opening and closing device includes: a transmission device, a brake device and a hydraulic system; wherein, The transmission device comprises a driving sprocket and a driven roller respectively disposed at both ends of the ship's hatchway, one end of the hatch cover plate above the ship's hatchway is connected to a round link chain, the round link chain is meshed with the driving sprocket; the other end of the hatch cover plate is connected to a traction rope, the free end of the round link chain and the free end of the traction rope are respectively passed through the driving sprocket and the driven roller and then connected together; The hydraulic system comprises a hydraulic motor and a hydraulic oil pump; the hydraulic motor is connected to the driving sprocket by transmission, and the hydraulic oil pump is connected to the hydraulic motor through an oil circuit; a hydraulic lock is provided on the input and output pipelines of the hydraulic motor; The brake device comprises a brake belt arranged on the driven roller and a brake oil cylinder drivingly connected to the brake belt; the brake oil cylinder is also connected to the hydraulic motor through an oil circuit.

2. The novel hatch hydraulic opening and closing device according to claim 1, characterized in that: The traction rope comprises a steel wire rope.

3. The novel hatch hydraulic opening and closing device according to claim 1, characterized in that: A chain guide cylinder is also sleeved on the round-ring chain.

4. The novel hatch hydraulic opening and closing device according to claim 1, characterized in that: The hydraulic system also includes: a pressure relay, a reversing valve, a relief valve, a stop valve, a throttle valve and an oil tank; wherein, The oil tank is connected to the oil inlet pipeline of the hydraulic oil pump, the pressure relay is arranged between the oil tank and the hydraulic oil pump, the oil outlet pipeline of the hydraulic oil pump is connected to the hydraulic motor and the brake device respectively, and the reversing valve, the throttle valve and the stop valve are arranged on the oil outlet pipeline; An oil return pipeline is also connected between the oil outlet pipeline and the oil tank, and the overflow valve is arranged on the oil return pipeline.

5. The novel hatch hydraulic opening and closing device according to claim 4, wherein: The oil inlet pipeline of the hydraulic oil pump is also provided with an oil suction coarse filter, and the oil return pipeline is also provided with an oil return fine filter; The sides of the oil suction coarse filter and the oil return fine filter are both connected in parallel with one-way valves.

6. The novel hatch hydraulic opening and closing device according to claim 4, characterized in that: The reversing valve includes a first reversing valve and a second reversing valve connected in parallel.

7. The novel hatch hydraulic opening and closing device according to claim 6, characterized in that: The first reversing valve comprises a three-position four-way electro-hydraulic reversing valve; the second reversing valve comprises a three-position four-way manual reversing valve.

8. The novel hatch hydraulic opening and closing device according to claim 1, characterized in that: The brake device also includes an emergency brake hand wheel, a lever, a spring, a piston and a piston rod; wherein, The spring and the piston are both arranged in the brake cylinder, the emergency brake handwheel is connected to the top end of the piston, the bottom end of the piston is connected to the piston rod, the piston rod passes through the bottom of the brake cylinder and is movably connected to the long end of the lever, and the short end of the lever is connected to the brake belt.

9. The novel hatch hydraulic opening and closing device according to claim 1, characterized in that: It also includes operating equipment, which includes control buttons in the ship's cabin and a control console on the front deck of the ship.

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