Detachable telescopic tail suspension connecting rod

Abstract

The utility model relates to the field of maritime work platform product manufacturing structures, in particular to a detachable telescopic tail crane connecting rod which comprises a first connecting rod and a second connecting rod, and one side of the second connecting rod is sleeved with the first connecting rod. The connecting hole is formed in the first end plate of the first connecting rod and used for being connected with an end bolt of a lifting reduction gearbox, a new lifting fulcrum is provided through the extending side of the second connecting rod, and therefore the number of lifting belts can be increased, and the installation efficiency is greatly improved; according to the utility model, the second straight pipe can partially extend out of the first straight pipe to increase the length of the structure, and can also retract into the first straight pipe to reduce the length of the structure, so that the problem that the hoisting point of the equipment body cannot meet the whole hoisting process under the limited space is solved, and the structure is prevented from colliding with a pile leg structure under the limited condition through the telescopic mode; and the construction difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of manufacturing structures of offshore platform products, in particular to a detachable telescopic tail suspension connecting rod. Background Art

[0002] In the manufacturing process of pile-type offshore platform products, the pile leg lifting is a large-scale high-precision component, and its production and installation requirements are particularly strict, and the installation of the lifting reducer is also an important link. Because the lifting reducer is usually an irregular device weighing more than 10 tons, it is necessary to translate most of the equipment body into the shaft hole of the lifting frame through lifting, and the lifting points of the equipment body are difficult to meet the entire lifting process, and it is difficult to ensure that it is smoothly lifted into the installation position. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a detachable telescopic tail lifting connecting rod to solve the problem that the lifting points of the existing lifting reducer box equipment body are difficult to meet the entire lifting process and it is difficult to ensure that it is smoothly lifted into the installation position.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a detachable telescopic tail hanging connecting rod is used to assist the installation of the lifting reduction box into the shaft hole of the lifting frame, and the lifting frame is arranged close to the pile leg, and its innovation lies in: comprising a first connecting rod and a second connecting rod, and one side of the second connecting rod is sleeved in the first connecting rod;

[0005] The first connecting rod comprises a first straight tube, a first end plate and an auxiliary connecting plate, the first straight tube is arranged horizontally, the first end plate is vertically fixed to an end of the first straight tube away from the second connecting rod, a plurality of the auxiliary connecting plates are laid at equal intervals on the outer circumference of the first straight tube, and the auxiliary connecting plate is fixedly connected to the first end plate, and a connecting hole is also provided in the middle of the first end plate for connecting with the end bolt of the lifting reduction box;

[0006] The second connecting rod includes a second straight tube and a second end plate. The second straight tube is horizontally arranged. The second end plate is vertically fixed to an end of the second straight tube away from the first connecting rod. The outer diameter of the second straight tube is not greater than the inner diameter of the first straight tube.

[0007] Furthermore, the auxiliary connecting plate includes a main body, a side of the main body connected to the first end plate is a first vertical plane, a side away from the first end plate is a second vertical plane, a side of the main body connected to the outer wall of the first straight tube is a first horizontal plane, a side close to the inner wall of the axial hole of the lifting frame is a second horizontal plane, and there is an arc transition between the second horizontal plane and the second vertical plane.

[0008] Furthermore, an auxiliary hole is provided on a side of the auxiliary connecting plate which is away from and lower than the first end plate.

[0009] Furthermore, a first screw hole is formed on a side of the first straight tube away from the first end plate, a second screw hole is formed on the second straight tube below the first screw hole, and a third screw hole is formed on the second straight tube near the second end plate;

[0010] A screw passes through the first screw hole and the second screw hole in sequence and then extends into the second straight tube cavity to achieve the connection between the first connecting rod and the second connecting rod. At this time, the second connecting rod partially extends out of the first connecting rod, and the length of the structure is the maximum;

[0011] A screw passes through the first screw hole and the second screw hole in sequence and then extends into the inner cavity of the second straight tube to achieve the connection between the first connecting rod and the second connecting rod. At this time, the second straight tube is completely extended into the first straight tube, and the length of the structure is the smallest at this time.

[0012] The advantages of the utility model are:

[0013] 1) A connecting hole is provided on the first end plate of the first connecting rod of the utility model, which is used to connect with the end bolt of the lifting reduction box, and a new lifting fulcrum is provided by using the extended side of the second connecting rod, so that a lifting belt can be added, which greatly improves the installation efficiency;

[0014] 2) In the utility model, the second straight tube can partially extend out of the first straight tube to increase the length of the structure, and can also be retracted into the first straight tube to reduce the length of the structure, thereby overcoming the difficulty that the equipment body lifting point cannot meet the requirements of the entire lifting process under limited space. The telescopic method also avoids the collision between the structure and the pile leg structure under extreme conditions, thereby reducing the difficulty of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a cross-sectional view of the utility model.

[0017] Figure 2 This is a schematic diagram of the first connecting rod of the utility model.

[0018] Figure 3 It is a schematic diagram of the second connecting rod of the utility model.

[0019] Figure 4 The workflow of the utility model Figure 1 .

[0020] Figure 5 The workflow of the utility model Figure 2 .

[0021] Figure 6 The workflow of the utility model Figure 3 .

[0022] Figure 7 The workflow of the utility model Figure 4 . DETAILED DESCRIPTION

[0023] like Figures 1 to 3 The detachable telescopic tail hanging connecting rod shown is used to assist the installation of the lifting reduction box 3 into the shaft hole of the lifting frame 2. The lifting frame 2 is arranged close to the pile leg 1, and the minimum limit distance between the end of the lifting reduction box 3 and the pile leg 1 is 495mm. In this embodiment, the length of the connecting rod after extension needs to be determined according to the minimum gap with the pile leg 1 tube.

[0024] The detachable telescopic tail suspension connecting rod 4 comprises a first connecting rod and a second connecting rod, and one side of the second connecting rod is sleeved in the first connecting rod. Since the connecting rod needs to be manually loaded and unloaded, the weight should not be too heavy, therefore, the weight of the first connecting rod or the second connecting rod is set not to exceed 30kg.

[0025] The outer diameter of this structure needs to be determined according to the size of the eyebolt hole at the rear of the lifting reduction box 3. In this embodiment, the outer diameter and length of the first straight pipe 41 and the second straight pipe 46 are φ168*12cm and φ140*12cm respectively.

[0026] The first connecting rod includes a first straight tube 41, a first end plate 42 and an auxiliary connecting plate 43. The first straight tube 41 is horizontally arranged, and the first end plate 42 is vertically fixed on one end of the first straight tube 41 away from the second connecting rod. A plurality of auxiliary connecting plates 43 are laid at equal intervals on the outer circumference of the first straight tube 41, and the auxiliary connecting plates 43 are fixedly connected to the first end plate 42. A connecting hole 44 is also provided in the middle of the first end plate 42 for disassembling and assembling the lifting eye bolt at the end of the reduction box 3. A new lifting fulcrum is provided by using the extended side of the second connecting rod, so that a lifting strap can be added, which greatly improves the installation efficiency.

[0027] The second connecting rod includes a second straight tube 46 and a second end plate 47 . The second straight tube 46 is horizontally arranged. The second end plate 47 is vertically fixed at one end of the second straight tube 46 away from the first connecting rod. The outer diameter of the second straight tube 46 is not greater than the inner diameter of the first straight tube 41 .

[0028] The auxiliary connecting plate 43 includes a main body, a side of the main body connected to the first end plate 42 is a first vertical plane, a side away from the first end plate 42 is a second vertical plane, a side connected to the outer wall of the first straight tube 41 is a first horizontal plane, a side close to the inner wall of the axial hole of the lifting frame 2 is a second horizontal plane, and there is an arc transition between the second horizontal plane and the second vertical plane.

[0029] An auxiliary hole is provided on the auxiliary connecting plate 43 on a side away from and lower than the first end plate 42 , and a chain can be installed on the auxiliary hole to assist in hoisting and lifting the reduction box 3 .

[0030] A first screw hole 45 is defined on one side of the first straight tube 41 away from the first end plate 42 , a second screw hole 48 is defined on the second straight tube 46 below the first screw hole 45 , and a third screw hole 49 is defined on the second straight tube 46 near the second end plate 47 .

[0031] A screw passes through the first screw hole 45 and the second screw hole 48 in sequence and then extends into the inner cavity of the second straight tube 46 to achieve the connection between the first connecting rod and the second connecting rod. At this time, the second connecting rod partially extends out of the first connecting rod, and the overall length of the structure is maximized.

[0032] A screw passes through the first screw hole 45 and the second screw hole 48 in sequence and then extends into the inner cavity of the second straight tube 46 to realize the connection between the first connecting rod and the second connecting rod. At this time, the second straight tube 46 is completely extended into the first straight tube 41. At this time, the overall length of the present structure is at least 485 mm, which overcomes the difficulty that the equipment body lifting point cannot meet the entire lifting process due to limited space. The telescopic method also avoids the collision between the present structure and the pile leg 1 structure under extreme conditions, reducing the construction difficulty.

[0033] Working principle of this patent:

[0034] like Figure 4-7 As shown, the pile leg 1, the lifting frame 2, and the lifting reduction box 3 are arranged in sequence. The lifting reduction box 3 is first hoisted by the first crane, and the end eye bolt of the lifting reduction box 3 is aligned with the axial hole of the lifting frame 2. The detachable telescopic tail lifting connecting rod 4 is installed at the end eye bolt position of the reduction box through the connecting hole 44 of the first end plate 42, and a screw is used to pass through the first screw hole 45 and the second screw hole 48 in sequence and then extend into the inner cavity of the second straight tube 46 to realize the connection between the first connecting rod and the second connecting rod, and the screw is an anti-drop screw and does not need to be tightened. At this time, the overall length of the structure is the largest, and the first crane is used to move the lifting reduction box 3 toward the lifting frame 2 to the detachable telescopic tail The extended side of the lifting link 4 extends out a lifting reduction box 3, and then a second crane is added to the second link and hoisted on the second link. The two cranes jointly lift the lifting reduction box 3 and extend it into the lifting frame 2 until the detachable telescopic tail lifting link 4 is close to the pile leg 1 and stops. A sling is added to the first link, and the sling is also installed on the second crane. The two cranes continue to be used to jointly lift the lifting reduction box 3 and extend it into the lifting frame 2 until the first end plate 42 is close to the pile leg 1 and stops. The sling on the second link is removed, and the second link is retracted to the first link. The two cranes continue to be used to jointly lift the lifting reduction box 3 and extend it into the lifting frame 2 and stop after it is in place, and then subsequent dismantling operations are carried out.

[0035] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A detachable telescopic tail suspension connecting rod, used to assist the installation of a lifting reduction box into the shaft hole of a lifting frame, and the lifting frame is arranged close to the pile legs, characterized in that: It comprises a first connecting rod and a second connecting rod, and one side of the second connecting rod is sleeved in the first connecting rod; The first connecting rod comprises a first straight tube, a first end plate and an auxiliary connecting plate, the first straight tube is arranged horizontally, the first end plate is vertically fixed to an end of the first straight tube away from the second connecting rod, a plurality of the auxiliary connecting plates are laid at equal intervals on the outer circumference of the first straight tube, and the auxiliary connecting plates are fixedly connected to the first end plate, and a connecting hole is also provided in the middle of the first end plate; The second connecting rod includes a second straight tube and a second end plate. The second straight tube is horizontally arranged. The second end plate is vertically fixed to an end of the second straight tube away from the first connecting rod. The outer diameter of the second straight tube is not greater than the inner diameter of the first straight tube.

2. The detachable telescopic tail suspension connecting rod according to claim 1, characterized in that: The auxiliary connecting plate includes a main body, a side of the main body connected to the first end plate is a first vertical plane, a side away from the first end plate is a second vertical plane, a side of the main body connected to the outer wall of the first straight tube is a first horizontal plane, a side close to the inner wall of the axial hole of the lifting frame is a second horizontal plane, and there is an arc transition between the second horizontal plane and the second vertical plane.

3. The detachable telescopic tail suspension connecting rod according to claim 1, characterized in that: An auxiliary hole is provided on a side of the auxiliary connecting plate which is away from and lower than the first end plate.

4. The detachable telescopic tail suspension connecting rod according to claim 1, characterized in that: A first screw hole is formed on a side of the first straight tube away from the first end plate, a second screw hole is formed on the second straight tube below the first screw hole, and a third screw hole is formed on the second straight tube near the second end plate; A screw passes through the first screw hole and the second screw hole in sequence and then extends into the second straight tube cavity to achieve the connection between the first connecting rod and the second connecting rod. At this time, the second connecting rod partially extends out of the first connecting rod, and the length of the structure is the maximum; A screw passes through the first screw hole and the second screw hole in sequence and then extends into the inner cavity of the second straight tube to achieve the connection between the first connecting rod and the second connecting rod. At this time, the second straight tube is completely extended into the first straight tube, and the length of the structure is the smallest at this time.

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