Liquid cargo tank half-cabin hoisting and positioning tool

Abstract

The utility model provides a kind of liquid cargo tank half cabin hoisting positioning tool, comprising: upper clamping plate;Lower clamping plate, the upper clamping plate and the lower clamping plate are oppositely arranged, and one end of the upper clamping plate and one end of the lower clamping plate are aligned;Connecting plate, two ends of the connecting plate are connected with the two end portions of the upper clamping plate and the lower clamping plate aligned respectively, the upper clamping plate, the lower clamping plate and the connecting plate enclose a recess, and the recess is used to accommodate vertical support structure bottom plate;Relying on board, it is vertically arranged with the lower clamping plate, one end of the relying on board is connected with the side of the lower clamping plate away from the upper clamping plate, and the relying on board is used to be connected with oil pump. The positioning tool can solve the technical problem of difficult positioning in the front-rear direction of the half cabin without the anti-tilting support structure.

Description

Technical Field

[0001] This utility model relates to the field of liquid cargo tank hoisting, and in particular to a hoisting and positioning tool for a half-tank of liquid cargo. Background Technology

[0002] Very large, fully refrigerated LPG carriers typically have a cargo capacity of 60,000 m³. 3 In summary, due to the large size and heavy weight of the Type A cargo tanks of ultra-large fully refrigerated LPG carriers, there are certain requirements for the lifting load and lifting conditions of the cranes when hoisting them into the tanks for positioning and installation. In order to compensate for the deficiencies in the lifting load and lifting conditions of the cranes, the Type A cargo tanks can be divided into two semi-cargo tanks, one in front and one behind, for hoisting.

[0003] The typical positioning scheme for hoisting the fore and aft halves of a Type A cargo tank is as follows: Lateral positioning (controlling longitudinal centerline deviation) utilizes the tank's bottom anti-roll bearing structure. During positioning, oil pumps are installed within the bottom anti-roll bearings at both ends of the halves, and the lateral positioning is achieved by adjusting the pump stroke. Fore-and-aft positioning (controlling lateral centerline deviation) utilizes anti-tipping bearing structures. During positioning, oil pumps are installed within the anti-tipping bearings on both sides of the cargo tank, and the fore-and-aft positioning is achieved by adjusting the pump stroke.

[0004] Because the anti-roll support structure of the Type A liquid cargo tank is only arranged on one side of the front or rear half of the tank, and the other half of the tank does not have an anti-roll support structure, the anti-roll support structure cannot be used for positioning in the forward and backward directions, which makes it difficult to position the half of the tank without an anti-roll support structure in the forward and backward directions. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a lifting and positioning tool for a half-tank of a liquid cargo tank, which can solve the problem of difficult positioning of the half-tank in the forward and backward directions without anti-tipping support structure in related technologies.

[0006] To achieve the above and other related objectives, this utility model provides a lifting and positioning fixture for a half-tank of a liquid cargo tank, including: an upper clamping plate;

[0007] The lower card plate is provided, and the upper card plate and the lower card plate are disposed opposite to each other, with one end of the upper card plate and one end of the lower card plate aligned.

[0008] A connecting plate, the two ends of which are respectively connected to the two ends aligned with the upper clamping plate and the lower clamping plate, the upper clamping plate, the lower clamping plate and the connecting plate forming a groove, the groove being used to accommodate the bottom plate of the vertical support structure;

[0009] A backing plate is set perpendicular to the lower clamping plate, and one end of the backing plate is connected to the side of the lower clamping plate opposite to the upper clamping plate. The backing plate is used to connect to the oil pump.

[0010] Preferably, the length of the upper card plate is shorter than that of the lower card plate.

[0011] Preferably, the distance between the upper plate and the lower plate is configured to be greater than the thickness of the bottom plate of the vertical support structure.

[0012] Preferably, the length of the abutment is configured to be less than the distance between the bottom plate of the vertical support structure and the bottom plate of the cargo hold.

[0013] Preferably, the positioning fixture further includes a reinforcing plate, which is connected to the side of the backing plate away from the connecting plate. The reinforcing plate extends along the backing plate and one end of the reinforcing plate is connected to the lower clamping plate.

[0014] Preferably, there are multiple reinforcing plates, which are spaced apart and arranged in parallel.

[0015] Preferably, the positioning fixture further includes a positioning plate, which is connected to the side of the lower clamping plate facing the upper clamping plate, and the positioning plate is disposed relative to the connecting plate.

[0016] As described above, the liquid cargo tank half-tank hoisting and positioning fixture of this utility model has the following beneficial effects: the positioning fixture has a simple structural design and is easy to operate during construction. The positioning fixture utilizes the vertical support structure arranged at the bottom of the half-tank of the Type A liquid cargo tank to position the half-tank in the front and rear directions. This overcomes the technical problem of difficulty in positioning the half-tank in the front and rear directions due to insufficient crane resources when using the front and rear half-tank hoisting and positioning scheme, which results in the lack of anti-tilting support structure. This shortens the half-tank positioning time and improves production efficiency. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic of the positioning fixture of this utility model.

[0018] Figure 2 This is a front view schematic diagram of the positioning tooling of this utility model in use.

[0019] Figure 3 The diagram shown is a top view of the positioning fixture of this utility model in use.

[0020] Figure 4 The diagram shown is a positioning fixture schematic diagram of another embodiment of this utility model.

[0021] Component designation explanation

[0022] 1. Upper clamping plate; 2. Lower clamping plate; 3. Connecting plate; 4. Backing plate; 5. Reinforcing plate; 6. Positioning plate; 10. Vertical support structure bottom plate; 20. Cargo hold bottom plate; 30. Vertical support structure web plate; 40. Oil pump. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0024] Please see Figures 1 to 4 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] Please see Figure 1 and Figure 2 This embodiment provides a positioning fixture for lifting half of a liquid cargo tank, which is mainly applicable to half of a type A liquid cargo tank. The positioning fixture includes an upper clamping plate 1, a lower clamping plate 2, a connecting plate 3, a backing plate 4, and a reinforcing plate 5. The upper clamping plate 1 and the lower clamping plate 2 are horizontally arranged and spaced apart vertically. One end of the upper clamping plate 1 and one end of the lower clamping plate 2 are aligned, meaning that one end face of the upper clamping plate 1 and one end face of the lower clamping plate 2 are on the same plane. The connecting plate 3 is vertically arranged, and its upper and lower ends are connected to the aligned ends of the upper clamping plate 1 and the lower clamping plate 2, respectively. In this configuration, the upper clamping plate 1, the connecting plate 3, and the lower clamping plate 2 form a groove structure, which is used to accommodate the bottom plate 10 of the vertical support structure on the liquid cargo tank.

[0026] The back plate 4 is set perpendicular to the lower card plate 2. The top of the back plate 4 is connected to the side of the lower card plate 2 away from the upper card plate 1, and the back plate 4 is located on the side of the lower card plate 2 away from the connecting plate 3.

[0027] The reinforcing plate 5 is vertically arranged and connected to the side of the back plate 4 away from the connecting plate 3. The top of the reinforcing plate 5 is connected to the lower clamping plate 2. For example, there are two reinforcing plates 5, both of which are vertically arranged and parallel to each other. Both reinforcing plates 5 are connected to the side of the back plate 4 away from the connecting plate 3, and the top of both reinforcing plates 5 is connected to the lower clamping plate 2. The reinforcing plates 5 serve to increase the connection strength of the back plate 4.

[0028] Please see Figure 2 and Figure 3 During the implementation of the positioning fixture, when the half-tank of the liquid cargo tank is hoisted into the cargo tank and the bottom plate 10 of the vertical support structure of the liquid cargo tank is close to the bottom plate 20 of the cargo tank, the groove structure of the positioning fixture is pre-clamped into the bottom plate 10 of the vertical support structure. The upper clamping plate 1 and the lower clamping plate 2 are firmly fixed to the bottom plate 10 of the vertical support structure through the connecting plate 3. Then, the oil pump 40 is inserted between the abutment plate 4 and the web plate 30 of the vertical support structure. The output end of the oil pump 40 is connected to the abutment plate 4. At this time, the positioning construction of the half-tank of the liquid cargo tank in the forward and backward direction can be completed by adjusting the stroke of the oil pump 40, so that the forward and backward positioning of the half-tank of the liquid cargo tank meets the accuracy requirements.

[0029] In this embodiment, the length of the upper clamping plate 1 is less than the length of the lower clamping plate 2. This arrangement makes it easier for the vertical support structure base plate 10 to be inserted into or pulled out of the groove.

[0030] To facilitate the insertion of the vertical support structure base plate 10 into the groove, the distance between the upper clamping plate 1 and the lower clamping plate 2 is greater than the thickness of the vertical support structure base plate 10.

[0031] To facilitate the installation of positioning fixtures, the length of the support plate 4 is less than the distance between the bottom plate 10 of the vertical support structure of the liquid cargo tank and the bottom plate 20 of the cargo tank.

[0032] Please see Figure 4 In other embodiments, the positioning fixture also includes a positioning plate 6, which is connected to the side of the lower clamping plate 2 facing the upper clamping plate 1. The positioning plate 6 and the connecting plate 3 are arranged opposite to each other. When the bottom plate 10 of the vertical support structure is inserted between the upper clamping plate 1 and the lower clamping plate 2, the positioning plate 6 and the connecting plate 3 abut against the two sides of the bottom plate 10 of the vertical support structure, respectively. At this time, by adjusting the output end of the oil pump 40, the positioning fixture can move back and forth with the output end of the oil pump 40, so that the front and rear positioning of the liquid cargo tank half-tank meets the accuracy requirements.

[0033] The positioning fixture of this utility model has a simple structural design and is easy to operate during construction. This positioning fixture cleverly utilizes the vertical support structure arranged at the bottom of each half-tank of a Type A liquid cargo tank to position the half-tank in the forward and backward directions. This overcomes the technical difficulty of forward and backward positioning of the half-tank without anti-tilting supports due to insufficient crane resources in the lifting and positioning of Type A liquid cargo tanks, which often results in difficulties in positioning the half-tank without anti-tilting supports. This shortens the half-tank positioning time and improves production efficiency. Therefore, this utility model effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0034] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A lifting and positioning fixture for a half-tank of a liquid cargo tank, characterized in that, include: Upper card board; The lower card plate is provided, and the upper card plate and the lower card plate are disposed opposite to each other, with one end of the upper card plate and one end of the lower card plate aligned. A connecting plate, the two ends of which are respectively connected to the two ends aligned with the upper clamping plate and the lower clamping plate, the upper clamping plate, the lower clamping plate and the connecting plate forming a groove, the groove being used to accommodate the bottom plate of the vertical support structure; A backing plate is set perpendicular to the lower clamping plate, and one end of the backing plate is connected to the side of the lower clamping plate opposite to the upper clamping plate. The backing plate is used to connect to the oil pump.

2. The lifting and positioning fixture for a half-tank of liquid cargo as described in claim 1, characterized in that: The length of the upper card plate is less than that of the lower card plate.

3. The lifting and positioning fixture for a half-tank of liquid cargo as described in claim 1, characterized in that: The distance between the upper and lower clamping plates is configured to be greater than the thickness of the bottom plate of the vertical support structure.

4. The lifting and positioning fixture for a half-tank of liquid cargo as described in claim 1, characterized in that: The length of the abutment is configured to be less than the distance between the bottom plate of the vertical support structure and the bottom plate of the cargo hold.

5. The lifting and positioning fixture for a half-tank of liquid cargo as described in claim 1, characterized in that: The positioning fixture also includes a reinforcing plate, which is connected to the side of the backing plate away from the connecting plate. The reinforcing plate extends along the backing plate and one end of the reinforcing plate is connected to the lower clamping plate.

6. The lifting and positioning fixture for a half-tank of liquid cargo as described in claim 5, characterized in that: The number of reinforcing plates is multiple, and the multiple reinforcing plates are spaced apart and arranged in parallel.

7. The lifting and positioning fixture for a half-tank of liquid cargo as described in claim 1, characterized in that: The positioning fixture also includes a positioning plate, which is connected to the side of the lower clamping plate facing the upper clamping plate, and the positioning plate is positioned relative to the connecting plate.

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