Hoisting system for stern of oiling ship

Abstract

The utility model discloses a hoisting system for the stern of an oiling ship, the hoisting system comprises a hoisting piece, a driving piece and a locking piece, after a cargo hose to be hoisted is connected through a hoisting part and hoisted to a certain height, the driving piece drives the hoisting piece to rotate relative to the oiling ship, and the locking piece is locked on the hoisting piece. The lifting part is arranged on the lifting part and drives the cargo hose to be lifted to the target position, in the process of operating the lifting part, the lifting part is limited to the current position through the locking state of the locking part, in the state, the driving part avoids limiting the relative position of the lifting part by keeping the acting force, and the locking part can be kept in the locking state after being switched to different lengths. Therefore, the lifting piece is kept relatively stable at different positions, the reliability of the lifting piece is greatly improved, meanwhile, the driving piece only outputs pulling force or traction force to the lifting piece unilaterally in the process of driving the lifting piece to rotate, and the reliability of the lifting system and the operation safety are further improved in the working condition of repeatedly lifting a cargo hose.

Description

Technical Field

[0001] The present application relates to the technical field of a lifting system for an oil and chemical ship, and in particular to a lifting system for the stern of an oil and chemical ship. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present disclosure. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present disclosure.

[0003] The cargo hose filling stations of oil and chemical ships are usually distributed on the left and right sides of the ship. The lifting operation of the cargo hose at the filling station can be conventionally achieved by a long-arm full-swing crane located between the two filling stations. As the filling function of the cargo hose of oil and chemical ships has been continuously explored in recent years, the ship user has added the requirement to set up a cargo hose filling station at the stern. Due to the space limitations around the cargo hose filling station at the stern of the oil and chemical ship, the lifting of its cargo hose adopts a compact reversible gantry hanger. The gantry just covers the width of the stern filling station. The hand hoist on the gantry crossbeam is located just above the hose interface of the filling station. The gantry realizes the movement of the gantry crossbeam to the inside and outside of the ship through the hydraulic cylinders on the two side legs, thereby facilitating the lifting of the hose. According to the conventional design of the reversible gantry hanger, the inclination angle of the gantry can be locked by the two-way balance valves on the hydraulic cylinders on both sides, but in actual use, the hydraulic system is prone to oil leakage and the inclination angle is not firmly locked, which seriously affects the reliability and safety of the gantry. Utility Model Content

[0004] In view of the defects existing in the prior art, the present application provides a lifting system for the stern of an oil and gas vessel to solve the problem of poor reliability of the lifting frame in the prior art during repeated operations.

[0005] The above-mentioned purpose of the present application is mainly achieved through the following technical solutions:

[0006] A lifting system for the stern of an oil and chemical ship, the lifting system comprising:

[0007] A lifting member, the lifting member is rotatably arranged on the oil and chemical ship, and the lifting member is provided with a lifting part for lifting the cargo hose, so that when the lifting member is rotated to different positions, the lifting part drives the cargo hose to move to different positions;

[0008] A driving member, the driving member is connected between the lifting member and the oil and chemical vessel and is used to drive the lifting member to reciprocate;

[0009] A locking member is connected between the lifting member and the oil and chemical vessel, the locking member has a locking state for limiting the rotation of the lifting member, and the locking member can be switched to different lengths.

[0010] In an optional embodiment, the locking member includes a first connecting portion and a second connecting portion, the lifting member is fixedly connected to one of the first connecting portion and the second connecting portion, the oil and chemical ship is fixedly connected to the other, and a detachably connected locking portion is provided between the first connecting portion and the second connecting portion to put the locking member in a locked state.

[0011] In an optional embodiment, a plurality of first locking holes are provided on the first connecting part, a second locking hole is provided on the second connecting part, and the distances from the first locking holes and the second locking holes to the rotation center of the lifting member are the same, so that when the second locking hole coincides with different first locking holes, the locking member switches to different lengths.

[0012] In an optional embodiment, the locking portion adopts a bolt assembly, which is used to simultaneously penetrate the first locking hole and the second locking hole, and then limit the locking portion from axially disengaging through a threaded connection.

[0013] In an optional embodiment, the extension direction of the center line of the locking portion is parallel to the rotation direction of the lifting member.

[0014] In an optional embodiment, the first connecting portion and the second connecting portion are respectively configured to be arc-shaped.

[0015] In an optional embodiment, the first connecting portion is provided with side panels disposed on both sides of the second connecting portion.

[0016] In an optional embodiment, the second connecting portion includes two ear plates arranged in parallel, and a positioning block fixedly connected between the two ear plates, and the locking portion is detachably connected to the positioning block.

[0017] In an optional embodiment, the lifting member is connected to the oil-chemical vessel via a base, and both ends of the lifting member are rotatably connected to the base, and the driving member is connected between the lifting member and the base.

[0018] In an optional embodiment, the lifting portion is rotatably connected to the lifting member.

[0019] Compared with the prior art, the advantages of this application are:

[0020] The lifting system in the present application includes a lifting member, a driving member and a locking member. The lifting member is rotatably arranged on the oil and chemical ship. The lifting member is provided with a lifting part for lifting the cargo hose, so that when the lifting member is rotated to different positions, the lifting part drives the cargo hose to move to different positions. The driving member is connected between the lifting member and the oil and chemical ship, and is used to drive the lifting member to rotate back and forth. The locking member is connected between the lifting member and the oil and chemical ship, and the locking member has a locking state that limits the rotation of the lifting member, and the locking member can be switched to different lengths. In actual operation, the cargo hose to be lifted is connected through the lifting part, and after being lifted to a certain height, the lifting part is driven The moving part drives the lifting part to rotate relative to the oil and chemical ship, and drives the cargo hose to be lifted to the target position. During the operation of the lifting part, the lifting part is restricted to the current position by the locking state of the locking part. In this state, the driving part avoids limiting the relative position of the lifting part by maintaining the force, and the locking part can be switched to different lengths and then remain in the locked state, so that the lifting part remains relatively stable at different positions, greatly improving the reliability of the lifting part. At the same time, the driving part only unilaterally outputs a pulling force or traction force on the lifting part during the process of driving the lifting part to rotate, further improving the reliability of the lifting system and improving the safety of the operation in the condition of repeatedly lifting the cargo hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A structural schematic diagram of a lifting system is provided for an embodiment of the present application;

[0023] Figure 2 A structural schematic diagram of a locking member is provided for an embodiment of the present application;

[0024] Figure 3 A partial cross-sectional view of a locking member is provided for an embodiment of the present application;

[0025] In the figure: 100, lifting member; 101, lifting part; 201, driving member; 300, locking member; 301, locking part; 401, first connecting part; 402, first locking hole; 403, side plate; 501, second connecting part; 502, second locking hole; 503, ear plate; 504, positioning block; 601, base. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structural and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments described herein.

[0027] Figure 1 A structural schematic diagram of a lifting system is provided for an embodiment of the present application. Figure 2 A structural schematic diagram of the locking member 300 is provided for the embodiment of the present application. Figure 3 A partial cross-sectional view of the locking member 300 is provided for the embodiment of the present application.

[0028] like Figure 1 As shown, a lifting system for the stern of an oil and gas vessel comprises a lifting member 100, a driving member 201 and a locking member 300, wherein:

[0029] The lifting member 100 is rotatably arranged on the oil and chemical ship. A lifting part 101 for lifting the cargo hose is provided on the lifting member 100, so that when the lifting member 100 is rotated to different positions, the lifting part 101 drives the cargo hose to move to different positions. The lifting member 100 is rotated relative to the oil and chemical ship. When the lifting member 100 is rotated to different positions, the cargo hose lifted by the corresponding lifting part 101 is also synchronously moved to different positions to complete the transfer operation of the cargo hose on the oil and chemical ship.

[0030] The driving member 201 is connected between the lifting member 100 and the oil and chemical ship, and is used to drive the lifting member 100 to rotate reciprocally. The driving member 201 is connected between the lifting member 100 and the oil and chemical ship, connects and drives the lifting member 100 to rotate reciprocally in the rotation direction, so that the lifting part 101 on the lifting member 100 reciprocates on the working path. When the driving member 201 drives the lifting member 100, the lifting member 100 reciprocates within the rotation angle range. That is to say, when the lifting member 100 is driven to an extreme angle, it is driven by the driving member 201 to rotate in the opposite direction to another extreme angle. When the lifting member 100 rotates from one extreme angle to another extreme angle, the output driving force of the driving member 201 is unidirectional and stable, maintaining a continuous and stable thrust or pull.

[0031] The driving member 201 may adopt a hydraulic jacking mechanism or a pneumatic jacking mechanism to drive the reciprocating motion of the lifting member 100 .

[0032] like Figure 1As shown, the locking member 300 is connected between the lifting member 100 and the oil and chemical vessel. The locking member 300 has a locking state for limiting the rotation of the lifting member 100, and the locking member 300 can be switched to different lengths. After the locking member 300 is switched to different lengths, the locking state can be opened to keep the current relative position of the lifting member 100 fixed, limiting the lifting member 100 from continuing to rotate. The locking member 300 is connected between the lifting member 100 and the oil and chemical vessel. When the length of the locking member 300 changes, the inclination angle of the lifting member 100 on the oil and chemical vessel also changes accordingly. When the locking member 300 is in the locked state, the driving member 201 can stop the driving operation to avoid unnecessary driving force output.

[0033] like Figure 1 As shown, in an optional embodiment, the working principle of the lifting system in the present application is: the lifting system includes a lifting member 100, a driving member 201 and a locking member 300, the lifting member 100 is rotatably arranged on the oil and chemical ship, and the lifting member 100 is provided with a lifting part 101 for lifting the cargo hose, so that when the lifting member 100 is rotated to different positions, the lifting part 101 drives the cargo hose to move to different positions, the driving member 201 is connected between the lifting member 100 and the oil and chemical ship, and is used to drive the lifting member 100 to rotate back and forth, the locking member 300 is connected between the lifting member 100 and the oil and chemical ship, the locking member 300 has a locking state that limits the rotation of the lifting member 100, and the locking member 300 can be switched to different lengths. In actual operation, the cargo hose to be lifted is moved by the lifting part 101 is connected and lifted to a certain height, the driving member 201 drives the lifting member 100 to rotate relative to the oil and chemical ship, and drives the cargo hose to be lifted to the target position. In the process of operating the lifting part 101, the lifting member 100 is restricted to the current position by the locking state of the locking member 300. In this state, the driving member 201 avoids limiting the relative position of the lifting member 100 by maintaining the force, and the locking member 300 can be switched to different lengths and then remain in the locked state, so that the lifting member 100 remains relatively stable at different positions, greatly improving the reliability of the lifting member 100. At the same time, the driving member 201 only unilaterally outputs the pulling force or traction force on the lifting member 100 during the process of driving the lifting member 100 to rotate, further improving the reliability of the lifting system and improving the operation safety in the working condition of repeatedly lifting the cargo hose.

[0034] like Figure 2As shown, in an optional embodiment, the locking member 300 includes a first connecting portion 401 and a second connecting portion 501, the lifting member 100 is fixedly connected to one of the first connecting portion 401 and the second connecting portion 501, the oil and chemical ship is fixedly connected to the other, and a detachably connected locking portion 301 is provided between the first connecting portion 401 and the second connecting portion 501 to put the locking member 300 in a locked state.

[0035] The lifting member 100 and the oil and chemical vessel are fixedly connected by the first connecting part 401 and the second connecting part 501 respectively. For the convenience of explanation, the first connecting part 401 is used to connect the lifting member 100, and the second connecting part 501 is used to connect the oil and chemical vessel. The method of connecting the first connecting part 401 to the oil and chemical vessel and the second connecting part 501 to the lifting member 100 will not be repeated.

[0036] like Figure 1 , Figure 2 As shown, when the lifting member 100 rotates, the relative positions of the first connection part 401 and the second connection part 501 change, thereby changing the length of the locking member 300. After the position of the first connection part 401 changes relative to the second connection part 501, the first connection part 401 and the second connection part 501 can be connected and constrained by the detachable locking part 301 to keep the locking member 300 in a locked state.

[0037] like Figure 1 , Figure 2 As shown, in an optional embodiment, a plurality of first locking holes 402 are provided on the first connecting portion 401, a second locking hole 502 is provided on the second connecting portion 501, and the distances between the first locking hole 402 and the second locking hole 502 and the rotation center of the lifting member 100 are the same, so that when the second locking hole 502 coincides with different first locking holes 402, the locking member 300 switches to different lengths.

[0038] like Figure 1 , Figure 2 and Figure 3As shown, when the lifting member 100 rotates, the relative positions of the first connection part 401 and the second connection part 501 change, thereby changing the length of the locking member 300. After the first connection part 401 changes position relative to the second connection part 501, since the distances between the first locking hole 402 and the second locking hole 502 and the rotation center of the lifting member 100 are the same, the second locking hole 502 on the second connection part 501 corresponds to the different first locking holes 402 on the first connection part 401. At this time, the locking part 301 can pass through the overlapping first locking hole 402 and the second locking hole 502, thereby maintaining this state, and the first connection part 401 and the second connection part 501 cannot be relatively displaced, so as to maintain the pulling constraint at different lengths and avoid the rotational displacement of the lifting member 100.

[0039] The setting of multiple first locking holes 402 can be correspondingly set at different working positions of the lifting member 100. That is to say, at the target working position of the lifting member 100, there is a corresponding first locking hole 402 and a second locking hole 502 arranged overlapping to reduce the operating difficulty of the locking member 300 in the locked state.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, the locking portion 301 adopts a bolt assembly to simultaneously penetrate the first locking hole 402 and the second locking hole 502 and then limit the locking portion 301 from axially coming out through a threaded connection.

[0041] After the bolt assembly passes through the first locking hole 402 and the second locking hole 502 , the first connecting portion 401 and the second connecting portion 501 are clamped by threaded connection, thereby avoiding axial displacement of the entire locking portion 301 , preventing loosening, and improving reliability.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, in an optional embodiment, the extension direction of the center line of the locking portion 301 is parallel to the rotation direction of the lifting member 100 .

[0043] The extension direction of the center line of the locking part 301 is parallel to the rotation direction of the lifting member 100. On the one hand, it is convenient for the operator to operate. On the other hand, it transfers the displacement pressure of the lifting member 100 to the shear force on the locking part 301, thereby improving the reliability of the first connection part 401 and the second connection as a whole supporting the lifting member 100 and avoiding the locking part 301 from being bent and deformed under pressure.

[0044] like Figure 2As shown, in an optional embodiment, the first connection portion 401 and the second connection portion 501 are respectively set to be arc-shaped, so as to adapt to the change of rotation angle during the rotation of the lifting member 100, and improve the coverage reliability between the first locking hole 402 and the second locking hole 502 between the first connection portion 401 and the second connection portion 501.

[0045] In an optional embodiment, the first connection portion 401 is provided with side panels 403 disposed on both sides of the second connection portion 501 .

[0046] The overall structural strength of the first connection part 401 is improved, and two side plates 403 are disposed on both sides of the second connection part 501 to keep the relative position of the first connection part 401 and the second connection part 501 reliable when they are relatively displaced.

[0047] The first locking holes 402 are arranged on the side plates 403 , and the locking portion 301 needs to penetrate through the first locking holes 402 opposite to each other on the two side plates 403 at the same time to maintain the connection stability of the locking portion 301 .

[0048] like Figure 2 and Figure 3 As shown, in an optional embodiment, the second connecting portion 501 includes two parallelly arranged ear plates 503 and a positioning block 504 fixedly connected between the two ear plates 503, and the locking portion 301 is detachably connected to the positioning block 504.

[0049] The ear plate 503 supports the positioning block 504, improves the stability of the supporting block, and allows the positioning block 504 to extend between the two side plates 403, and the second locking hole 502 is located on the positioning block 504. The locking portion 301 can penetrate the positioning block 504 to complete the disassembly connection, maintain the structural stability of the second locking hole 502 on the positioning block 504, and avoid the second locking hole 502 from being torn and deformed.

[0050] In an optional embodiment, the lifting member 100 is connected to the oil and chemical vessel through a base 601 , and both ends of the lifting member 100 are rotatably connected to the base 601 , and the driving member 201 is connected between the lifting member 100 and the base 601 .

[0051] In an optional embodiment, the lifting portion 101 is rotatably connected to the lifting member 100, so as to adapt to the rotation angle of the lifting member 100 through relative rotation between the lifting portion 101 and the lifting member 100, and always maintain the stability of the cargo hose during dynamic lifting.

[0052] It should be understood that the terms first, second, etc. are only used to distinguish descriptions and should not be understood as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, the first unit may be referred to as the second unit, and similarly, the second unit may be referred to as the first unit without departing from the scope of the exemplary embodiments of the present utility model.

[0053] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0054] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside", etc. indicate orientations or positional relationships that are customarily placed when the disclosed product is used, or are orientations or positional relationships that are customarily understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The terms used herein are only used to describe specific embodiments and are not intended to limit the exemplary embodiments of the utility model. As used herein, the singular forms "one", "an", and "the" are intended to include plural forms unless the context clearly indicates the opposite meaning. It should also be understood that the terms "include", "comprise", "include", and / or "comprising" when used herein specify the existence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the existence or increase of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0057] Specific details are provided in the following description to facilitate a complete understanding of the exemplary embodiments. However, it should be understood by those of ordinary skill in the art that the exemplary embodiments may be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid making the exemplary embodiments unclear.

[0058] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

[0059] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field.

Claims

1. A lifting system for the stern of an oil-fired ship, characterized in that: The lifting system comprises: A lifting member, the lifting member is rotatably arranged on the oil and chemical ship, and the lifting member is provided with a lifting part for lifting the cargo hose, so that when the lifting member is rotated to different positions, the lifting part drives the cargo hose to move to different positions; A driving member, the driving member is connected between the lifting member and the oil and chemical vessel and is used to drive the lifting member to reciprocate; A locking member is connected between the lifting member and the oil and chemical vessel, the locking member has a locking state for limiting the rotation of the lifting member, and the locking member can be switched to different lengths.

2. The lifting system for the stern of an oil-fired vessel as claimed in claim 1, characterized in that: The locking member includes a first connecting part and a second connecting part, the lifting member is fixedly connected to one of the first connecting part and the second connecting part, the oil and chemical ship is fixedly connected to the other, and a detachably connected locking part is provided between the first connecting part and the second connecting part to put the locking member in a locked state.

3. The lifting system for the stern of an oil-fired ship as claimed in claim 2, characterized in that: The first connecting part is provided with a plurality of first locking holes, the second connecting part is provided with a second locking hole, and the distances from the first locking holes and the second locking holes to the rotation center of the lifting member are the same, so that when the second locking hole coincides with different first locking holes, the locking member switches to different lengths.

4. The lifting system for the stern of an oil-fired vessel as claimed in claim 3, characterized in that: The locking portion adopts a bolt assembly, which is used to simultaneously penetrate the first locking hole and the second locking hole, and then limit the locking portion from escaping in the axial direction through threaded connection.

5. The lifting system for the stern of an oil-fired ship as claimed in claim 4, characterized in that: The extension direction of the center line of the locking portion is parallel to the rotation direction of the lifting member.

6. The lifting system for the stern of an oil-fired ship as claimed in claim 2, characterized in that: The first connection portion and the second connection portion are respectively configured in arc shapes.

7. The lifting system for the stern of an oil-fired ship as claimed in claim 6, characterized in that: The first connecting portion is provided with side plates which are arranged on both sides of the second connecting portion.

8. The lifting system for the stern of an oil-fired ship as claimed in claim 6, characterized in that: The second connecting portion includes two ear plates arranged in parallel, and a positioning block fixedly connected between the two ear plates, and the locking portion is detachably connected to the positioning block.

9. The lifting system for the stern of an oil-fired vessel as claimed in claim 1, characterized in that: The lifting members are connected to the oil-chemical ship through bases respectively, and both ends of the lifting members are rotatably connected to the bases, and the driving member is connected between the lifting members and the bases.

10. The lifting system for the stern of an oil-fired vessel as claimed in claim 1, characterized in that: The lifting part is rotatably connected to the lifting member.

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