Marine hatch roller device and travelling gear with hatch roller device

Abstract

The application provides a hatch roller device for a ship and a travelling mechanism with the hatch roller device, wherein the hatch roller device for the ship comprises a box, a roller assembly and a connecting assembly, wherein the roller assembly is arranged in the box; wherein the connecting assembly is arranged in the box, and the box is connected to a portal frame through the connecting assembly, and an active gap is arranged between the connecting assembly and the portal frame to allow relative movement between the hatch roller device and the portal frame.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a marine hatch roller device and a traveling mechanism with a hatch roller device. Background Technology

[0002] The holds of cargo ships can be tens or even hundreds of meters long. The top of the holds is covered by multiple removable hatch covers. Sometimes, lifting these covers requires a mobile crane mechanism to hoist the covers and move them to the desired location. This crane mechanism is usually hydraulically driven, allowing it to move back and forth above the holds.

[0003] In existing technologies, the relative positions of the ship's hold and the crane mechanism are fixed. However, because the hold is a hollow structure, and the longitudinal cross-section of a cargo ship's hold is U-shaped, the forces generated around it vary with changes in load and draft. This causes the U-shaped hatch opening to deform. Furthermore, the ship's draft differs between empty and fully loaded conditions, affecting the shape of the hold. For example, when the ship's draft is shallow and the bottom is loaded with heavy cargo, the hold may open; conversely, when the ship's draft is deep, the hatch opening may contract inward, resulting in deformation. Since the crane mechanism is typically fitted to the hold, hatch deformation can obstruct the crane mechanism's movement, thus affecting the opening and closing of the hold. Summary of the Invention

[0004] A key advantage of the present invention is that it provides a marine hatch roller device and a traveling mechanism with hatch roller devices, wherein the traveling mechanism includes a mast and hatch roller devices disposed on both sides of the mast, wherein at least one of the hatch roller devices is provided with an adjustable gap from the mast so that the hatch roller device can move relative to the hatch as the hatch expands or contracts.

[0005] Another advantage of the present invention is that it provides a marine hatch roller device and a traveling mechanism with a hatch roller device, wherein the hatch roller device can swing left and right along the guide rail, while the position of the gantry can remain unchanged, which helps to maintain the stability of the traveling mechanism.

[0006] According to one aspect of the present invention, a marine hatch roller device of the present invention, capable of achieving the foregoing and other objects and advantages, is suitable for a traveling mechanism, wherein the traveling mechanism further includes a gantry, and the hatch roller device comprises:

[0007] Box;

[0008] Roller assembly, wherein the roller assembly is disposed in the housing; and

[0009] A connecting assembly, wherein the connecting assembly is disposed in the housing and the housing is connected to the mast via the connecting assembly, and an adjustable clearance is provided between the mast and the connecting assembly to allow relative movement between the hatch roller assembly and the mast.

[0010] According to one embodiment of the present invention, the connecting component is disposed on the side or above the housing.

[0011] According to one embodiment of the present invention, the connecting assembly includes a transmission connector and an auxiliary connector, wherein the transmission connector is driveably connected to the gantry, and the movable gap is formed between the transmission connector and the gantry support; the auxiliary connector is connected to the gantry for maintaining the hatch roller devices parallel to each other.

[0012] According to one embodiment of the present invention, the auxiliary connector is located above the transmission connector.

[0013] According to one embodiment of the present invention, the connecting assembly further includes a pin for connecting the transmission connector and the gantry support of the gantry.

[0014] According to one embodiment of the present invention, the transmission connector includes at least two connecting terminals, the width of the connecting terminals of the transmission connector being greater than the width of the first connecting unit of the gantry, so as to form the movable gap between the transmission connector and the first connecting unit.

[0015] According to one embodiment of the present invention, the auxiliary connector further includes at least one coupling unit and a slider unit, wherein the slider unit is slidable relative to the second connecting unit of the gantry column, and the slider unit is connected to the second connecting unit through the at least one coupling unit.

[0016] According to one embodiment of the present invention, the roller assembly includes a drive shaft and at least one roller unit disposed on the drive shaft, wherein the roller unit is coaxially disposed with the drive shaft.

[0017] According to one embodiment of the present invention, it further includes at least one drive mechanism, wherein the drive mechanism is driveably connected to the roller assembly and drives the roller assembly to rotate.

[0018] According to another aspect of this application, this application further provides a traveling mechanism, wherein the traveling mechanism is disposed on a ship's guide rail, the traveling mechanism comprising:

[0019] gantry; and

[0020] At least two hatch roller devices as described above, wherein the hatch roller devices are disposed on two opposite sides of the gantry, the gantry is supported by the hatch roller devices and can be driven to move along the guide rail by the roller support device, wherein at least one side of the hatch roller device forms an movable gap with the gantry so as to allow relative movement between the roller device and the gantry when the hatch coaming changes.

[0021] According to one embodiment of the present invention, the gantry includes four gantry supports, the hatch roller device is connected to the gantry supports, and the gantry support on one side of the gantry is movably connected to the roller device, while the gantry support on the other side of the gantry is fixedly connected to the roller.

[0022] According to one embodiment of the present invention, the gantry includes four gantry supports, the hatch roller device is connected to the gantry supports, and the gantry supports and the roller device are movably connected.

[0023] According to one embodiment of the present invention, the gantry support further includes a support body, a first connecting unit and a second connecting unit, wherein the first connecting unit and the second connecting unit are disposed on the side or below the support body.

[0024] According to another aspect of this application, this application further provides a ship, comprising:

[0025] hull;

[0026] The traveling mechanism as described above; and

[0027] A hatch cover, wherein the traveling mechanism is movably mounted on the track of the hull, the hatch cover is detachably mounted above the cabin of the hull, and the cabin can be lifted by the traveling mechanism.

[0028] The further objects and advantages of the invention will become fully apparent from the following description and accompanying drawings.

[0029] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description and accompanying drawings. Attached Figure Description

[0030] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the drawings, unless otherwise specified, the same reference numerals are used to denote the same parts. Wherein:

[0031] Figure 1 This is a structural schematic diagram of a marine crane mechanism according to a first preferred embodiment of the present invention.

[0032] Figure 2 This is a side view of the traveling mechanism according to the first preferred embodiment of the present invention.

[0033] Figure 3A This is a cross-sectional view of the traveling mechanism according to the first preferred embodiment of the present invention in the AA direction.

[0034] Figure 3B This is a cross-sectional view of the traveling mechanism according to the first preferred embodiment of the present invention in the BB direction.

[0035] Figures 4A to 4C This is a schematic diagram of the traveling mechanism according to the first preferred embodiment of the present invention when the hatch coaming retracts inward.

[0036] Figures 5A to 5C This is a schematic diagram of the traveling mechanism according to the first preferred embodiment of the present invention when the hatch coaming expands outward. Detailed Implementation

[0037] It should be noted that the embodiments shown in the accompanying drawings are merely examples used to specifically and vividly explain and illustrate the concept of the present invention. They are not necessarily drawn to scale in terms of size and structure, nor do they constitute a limitation on the concept of the present invention.

[0038] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the various accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0039] Refer to the accompanying drawings in this application specification. Figures 1 to 5C As shown, a marine hatch roller device and a traveling mechanism with hatch roller devices according to a first preferred embodiment of this application are described below. The traveling mechanism is disposed above the hull and is used to lift the hatch cover from the hull or lower the hatch cover to a corresponding position. The traveling mechanism includes a gantry 10 and at least two hatch roller devices 20 disposed on opposite sides of the gantry 10, wherein the hatch roller devices 20 are disposed below the gantry 10, and the gantry 10 is driven to move along the guide rail of the hatch cover by the hatch roller devices 20.

[0040] The at least two hatch roller devices 20 are slidably mounted on guide rails on opposite sides of the hatch cover. The hatch roller devices 20 can roll along the guide rails and drive the gantry 10 to move in a specific direction. The at least two hatch roller devices 20 are connected to the gantry 10 and support and drive the gantry 10 to move along the guide rails.

[0041] It should be noted that in this preferred embodiment of the application, the hatch coaming of the hull will tighten inward or expand outward due to differences in load and draft, i.e., the hatch coaming of the hull changes. To accommodate the changes in hatch coaming, a movable gap 101 is provided between at least one side of the hatch roller device 20 and the gantry 10. When the hatch coaming of the hull changes, the hatch roller device 20 can move synchronously with the track of the hull, and the movable gap 101 allows relative movement between the hatch roller device 20 and the gantry 10. In other words, when the hatch coaming of the cabin expands outward, and the hatch roller device 20 moves outward synchronously with the track of the cabin, the movable gap 101 between the hatch roller device 20 and the mast 10 allows the mast 10 to remain in a constant position; when the hatch coaming of the cabin contracts inward, and the hatch roller device 20 moves inward synchronously with the track of the cabin, the movable gap 101 between the hatch roller device 20 and the mast 10 allows the mast 10 to remain in a constant position. It is understood that the movable gap 101 between the mast 10 and the hatch roller device 20 is the gap in the width direction of the two hatch roller devices 20.

[0042] like Figures 1 to 3B As shown, in this preferred embodiment of the present application, the gantry 10 includes four gantry supports 11. Correspondingly, in this preferred embodiment of the present application, the number of hatch roller devices 20 is the same as the number of gantry supports 11, that is, the number of hatch roller devices 20 is also four. The hatch roller devices 20 are connected to the gantry supports 11, support the gantry supports 11, and drive the gantry supports to move along the track.

[0043] The hatch roller device 20 is disposed on the inner side, outer side, or below the gantry support 11, and the gantry support 11 is supported by the hatch roller device 20. It is understood that the relative position of the hatch roller device 20 and the gantry support 11 is merely an example and not a limitation.

[0044] In this preferred embodiment of the present application, a movable gap 101 is provided between the hatch roller device 20 located on one side of the gantry 10 and the gantry support 11 on that side, while the hatch roller device 20 on the other side of the gantry 10 is fixedly connected to the gantry support 11 on that other side, that is, the gantry support 11 on that other side can move synchronously with the hatch roller device 20. Optionally, in another optional embodiment of the present application, the movable gap 101 is provided between each of the four gantry supports 11 of the gantry 10 and the corresponding hatch roller device 20, so that when the hatch coaming of the hull changes, the movable gap 101 at the corresponding position allows the relative position of the gantry support 11 and the hatch roller device 20 to move.

[0045] In detail, the hatch roller device 20 includes a housing 21 on which at least one roller assembly 22 is disposed, and a connecting assembly 23 for connecting the gantry 10, wherein the at least one roller assembly 22 is pivotally disposed inside the housing 21. The at least one roller assembly 22 is disposed on the track in the cabin, and when the roller assembly 22 is driven to rotate, the roller assembly 22 can move along the track to move the gantry 10.

[0046] The connecting component 23 is disposed on the housing 21 and is fixedly connected to the housing 21. The housing 21 is connected to the gantry support 11 of the gantry 10 via the connecting component 23. The connecting component 23 is disposed on the side or top of the housing 21. Preferably, in this preferred embodiment of the present application, the connecting component 23 and the housing 21 are an integral structure. Optionally, in another alternative embodiment of the present application, the connecting component 23 is welded to one side of the housing 21.

[0047] The connecting assembly 23 includes a transmission connector 231 and an auxiliary connector 232. The transmission connector 231 is driveably connected to the gantry support 11 of the gantry 10, and the transmission connector 231 drives the gantry support 11 to move along the track direction. The auxiliary connector 232 is connected to the gantry support 11 and keeps the hatch roller device 20 parallel to the gantry support 11 of the gantry 10 to prevent the hatch roller device 20 and the gantry support 11 of the gantry 10 from deviating, which could cause the connecting assembly 23 to tear.

[0048] like Figures 1 to 3BAs shown, the gantry support 11 of the gantry 10 further includes a support body 111, a first connecting unit 112, and a second connecting unit 113, wherein the first connecting unit 112 and the second connecting unit 113 are disposed on the side or below the support body 111. The first connecting unit 112 is adapted to the transmission connector 231 of the connecting assembly 23, and the second connecting unit 113 is adapted to the auxiliary connector 232 of the connecting assembly 23.

[0049] like Figure 3B As shown, when the transmission connector 231 of the connecting assembly 23 is connected to the first connecting unit 112 of the gantry support 11, the movable gap 101 is formed between the transmission connector 231 and the first connecting unit 112. The width direction of the movable gap 101 is perpendicular to the axial direction of the track, so that when the roller assembly 20 moves with the track, the gantry support 11 of the gantry 10 can slide relative to the roller assembly 20 and maintain its position.

[0050] As an example, in this preferred embodiment of the present application, the transmission connector 231 of the connecting assembly 23 is connected to the first connecting unit 112 of the gantry support 11 by a plug-in connection. The connecting assembly 23 further includes a pin 233, through which the transmission connector 231 and the first connecting unit 112 are connected.

[0051] In detail, the transmission connector 231 includes at least two connecting terminals 2311, and the first connecting unit 112 includes at least one insert 1121, wherein the at least one insert 1121 is inserted opposite to the at least two connecting terminals 2311 of the transmission connector 231, and the at least two connecting terminals 2311 of the transmission connector 231 are connected to the insert 1121 of the first connecting unit 112 by the pin 233. Accordingly, in this preferred embodiment of the present application, the at least two connecting segments 2311 and the insert 1121 of the first connecting unit 112 are provided with insertion holes corresponding to the pin 233.

[0052] In this preferred embodiment of the present application, the width of the connecting terminal 2311 of the transmission connector 231 is greater than the width of the first connecting unit 112, so as to form the movable gap 101 between the transmission connector 231 and the first connecting unit 112. It is understood that, when the gantry position remains unchanged, when the hatch roller device 20 moves inward with the track, the movable gap 101 is formed on the inner side of the transmission connector 231; when the hatch roller device 20 moves outward with the track, the movable gap 101 is formed on the outer side of the transmission connector 232.

[0053] It is worth mentioning that, in this preferred embodiment of the present application, the movable gap 101 is formed between the at least two connecting terminals 2311 of the transmission connector 231 and the insert 1121 of the first connecting unit 112. The movable gap 101 is along the axial direction of the pin 233. When the hatch coaming of the cabin tightens or expands outwards, while the mast 10 remains stationary, the movable gap 101 located between the at least two connecting terminals 2311 and the insert 1121 of the first connecting unit 112 allows the hatch roller device 20 to move inwards or outwards along the track of the cabin.

[0054] It is worth mentioning that, in this preferred embodiment of the present application, the at least two connecting terminals 2311 of the transmission connector 231 and the insert 1121 of the first connecting unit 112 are perforated plates.

[0055] like Figure 3A As shown, the auxiliary connector 232 is connected to the second connecting unit 112 of the gantry support 11, and the auxiliary connector 232 maintains the relative position of the gantry support 11 and the hatch roller device 20. Preferably, in this preferred embodiment of the present application, the auxiliary connector 232 and the second connecting unit 112 are a sliding connection mechanism, wherein the auxiliary connector 232 and the second connecting unit 112 can slide relative to each other in a direction perpendicular to the track (i.e., the width direction of the hatch roller device 20).

[0056] The auxiliary connector 232 further includes at least one coupling unit 2321 and a slider unit 2322, wherein the slider unit 2322 is slidable relative to the second connecting unit 112 along the width direction of the hatch roller device 20, and is connected to the second connecting unit 112 via the at least one coupling unit 2321. Therefore, when the hatch roller device 20 moves along the track of the hull, the slider unit 2322 moves synchronously with the second connecting unit 112 under the action of the coupling unit 2321 to prevent the hatch roller device 20 from tipping over.

[0057] Accordingly, the second connecting unit 112 is a steel plate adapted to the slider unit 2322, and the slider unit 2322 and the second connecting unit 112 are slidably connected through the coupling unit 2321.

[0058] It is understood that in this preferred embodiment of the present application, the auxiliary connector 232 and the second connecting unit 112 of the gantry support 11 are slidably connected. The auxiliary connector 232 and the second connecting unit 112 keep the hatch roller device 20 and the gantry support 11 on the same plane or parallel to each other, so as to avoid excessive force on the pin 233 of the connecting assembly 23.

[0059] like Figures 4A to 4C As shown, when the hatch coaming of the cabin contracts, the track of the cabin moves inward. At this time, the track drives the hatch roller device 20 to move slightly in sync. The auxiliary connector 232 of the connecting assembly 23 slides relative to the second connecting unit 112 of the corresponding gantry support 11. That is, the slider unit 2322 moves outward relative to the gantry support 11 in sync with the gantry support 11. As the hatch roller device 20 deviates with the track, the transmission connector 231 moves towards the inside of the cabin. At this time, the movable gap 101 is formed on the inside between the first connecting units 111.

[0060] like Figures 5A to 5CAs shown, when the hatch coaming of the cabin expands outward, the track of the cabin moves outward. At this time, the track drives the hatch roller device 20 to move slightly in sync. The auxiliary connector 232 of the connecting assembly 23 slides relative to the second connecting unit 112 of the corresponding gantry support 11. That is, the slider unit 2322 moves in sync with the gantry support 11 and moves inward relative to the hatch roller device 20. As the hatch roller device 20 deviates with the track, the transmission connector 231 moves towards the outside of the cabin. At this time, the movable gap 101 is formed on the outside between the first connecting units 111.

[0061] Preferably, the transmission connector 231 and the auxiliary connector 232 of the connecting assembly 23 are an integral structure. Optionally, in another alternative embodiment of this application, the transmission connector 231 and the auxiliary connector 232 are separate structures.

[0062] In this preferred embodiment of the present application, the connecting component 23 is located on the side of the housing 21. Preferably, the transmission connector 231 is located below the auxiliary connector 232, that is, the transmission connector 231 and the auxiliary connector 232 are in an upper-lower structure, which helps to maintain the stability and balance of the hatch roller device 20 and the gantry 10. In another optional embodiment of the present application, the transmission connector 231 and the auxiliary connector 232 are in a lower-middle structure, that is, the transmission connector 231 is located on the outer or inner side of the auxiliary connector 232.

[0063] More preferably, in this preferred embodiment of the present application, the height of the transmission connector 231 is approximately the same as the height of the central axis of the roller assembly 22, so that the roller assembly 22 drives the gantry 10 to move through the transmission connector 231. The auxiliary connector 232 is located above the transmission connector 231, and the auxiliary connector 232 corrects the relative position of the main structure of the hatch roller device 20 and the gantry 10 by sliding, preventing the hatch roller device 20 from shifting.

[0064] like Figures 1 to 3B As shown, the roller assembly 22 of the hatch roller device 20 includes a drive shaft 221 and at least one roller unit 222 disposed on the drive shaft 221, wherein the roller unit 222 is coaxially disposed with the drive shaft 221. The roller unit 222 of the roller assembly 22 has a track groove 2220, wherein the track groove 2220 of the roller unit 222 is adapted to the track of the cabin.

[0065] The hatch roller device 20 further includes at least one drive mechanism 24, wherein the drive mechanism 24 is driveably connected to the roller assembly 22 and drives the roller assembly 22 to rotate. As an example, in this preferred embodiment of the present application, the drive mechanism 24 is connected to the roller assembly 22 by means of chain drive or belt drive.

[0066] Accordingly, the drive mechanism 24 further includes a drive motor 241 and a transmission assembly 242 connected to the drive motor 241, wherein the transmission assembly 242 is connected to the transmission shaft 221 of the roller assembly 22, and the drive motor 241 drives the transmission shaft 221 of the roller assembly 212 to rotate through the transmission assembly 242.

[0067] The drive motor 241 is fixedly mounted on the housing 21. Correspondingly, the drive mechanism 24 further includes a motor mounting bracket 243, wherein the motor mounting bracket 243 is fixed above the housing 21, and the drive motor 241 is fixed above the housing by the motor mounting bracket 243.

[0068] The transmission component 242 of the drive mechanism 24 is implemented as a chain drive mechanism, a gear drive mechanism, or a belt drive mechanism. In this preferred embodiment of the application, the specific type of the transmission component 242 of the drive mechanism 24 is not limited herein.

[0069] Referring to another aspect of this application, this application further provides a ship, wherein the ship includes a hull, a traveling mechanism disposed on the hull, and a hatch, wherein the hatch is detachably disposed above a cabin of the hull, and the traveling mechanism is used to lift the hatch off the cabin or to lift the hatch to a specific position within the cabin. It is worth noting that the traveling mechanism is the same as that described in the preferred embodiment above, and will not be repeated here.

[0070] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A hatch roller arrangement for a ship, suitable for a travelling gear, wherein the travelling gear further comprises a portal, characterised in that, The hatch roller device comprises: a box body; a roller assembly, wherein the roller assembly is arranged in the box body; and a connecting assembly, wherein the connecting assembly is arranged in the box body, and the box body is connected to the portal frame through the connecting assembly, wherein the connecting assembly comprises a transmission connecting member and an auxiliary connecting member, the transmission connecting member is in transmission connection with a portal frame pillar of the portal frame, an active gap is provided between the portal frame and the connecting assembly to allow relative movement between the hatch roller device and the portal frame when the hatch perimeter of the ship changes; the auxiliary connecting member is connected with the portal frame pillar, and is used for keeping the hatch roller device parallel to the portal frame pillar.

2. The hatch roller device according to claim 1, wherein the connecting assembly is arranged on the side or above the box body.

3. The hatch roller device according to claim 1, wherein the auxiliary connecting member is located above the transmission connecting member, the connecting assembly further comprises a latch for connecting the transmission connecting member and the portal frame pillar of the portal frame, wherein the portal frame pillar comprises a first connecting unit and a second connecting unit, the transmission connecting member comprises at least two connecting terminals, and the width of the connecting terminals of the transmission connecting member is greater than the width of the first connecting unit of the portal frame, so as to form the active gap between the transmission connecting member and the first connecting unit.

4. The hatch roller device according to claim 3, wherein the auxiliary connecting member further comprises at least one shaft connecting unit and a sliding block unit, wherein the sliding block unit is relatively slidable with the second connecting unit of the portal frame pillar, and the sliding block unit is connected with the second connecting unit through the at least one shaft connecting unit, wherein the roller assembly comprises a transmission shaft and at least one roller unit arranged on the transmission shaft, wherein the roller unit is coaxially arranged with the transmission shaft, and the hatch roller device further comprises at least one driving mechanism, wherein the driving mechanism is in transmission connection with the roller assembly, and the roller assembly is driven to rotate by the driving mechanism.

5. A trolley, wherein said trolley is arranged on a guide rail of a vessel, characterized in that The travelling mechanism comprises: a portal frame; and at least two hatch roller devices according to any one of claims 1 to 4, wherein the hatch roller devices are arranged on two opposite sides of the portal frame, the portal frame is supported by the hatch roller devices, and the portal frame can be driven to move along the guide rail by the roller support device, wherein an active gap is formed between at least one of the hatch roller devices and the portal frame, so as to allow relative movement between the roller device and the portal frame when the hatch perimeter changes.

6. The travelling mechanism according to claim 5, wherein the portal frame comprises four portal frame pillars, the hatch roller devices are connected with the portal frame pillars, and the portal frame pillars on one side of the portal frame are in active connection with the roller devices, and the portal frame pillars on the other side of the portal frame are in fixed connection with the rollers.

7. The travelling mechanism according to claim 5, wherein the portal frame comprises four portal frame pillars, the hatch roller devices are connected with the portal frame pillars, and the portal frame pillars are in active connection with the roller devices.

8. A vessel characterised in that The travelling mechanism comprises: a ship body; The travelling mechanism as claimed in any one of claims 5 to 7; and A hatch cover, wherein the travelling mechanism is movably arranged on a rail of the hull, the hatch cover is detachably arranged above a cabin of the hull, and the hatch cover is hoisted to the cabin by the travelling mechanism.

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