Combined stranding head structure

Abstract

The utility model discloses a combined type twisting head structure, which comprises a winch, a shaft sleeve part, a guide part and a telescopic sleeve, the shaft sleeve part is fixedly connected with the winch and is coaxially arranged with the winch; the end, away from the winch, of the shaft sleeve part is provided with a plurality of connecting sleeves different in length, and every two adjacent connecting sleeves are detachably connected through a fastener. The guide part is arranged to be of a hollow structure, is fixedly connected with the connecting sleeve on the outermost side through the telescopic sleeve and is used for the flat steel wire on the winch to penetrate out; wherein the length of the telescopic sleeve can be kept fixed. The utility model relates to the technical field of marine flexible hose armoring, and through the arrangement, the precise adjustment of the included angle can be completed in a coarse adjustment and fine adjustment mode, so that the spiral flat steel wires in different armoring process requirements are matched for application, and the purpose of high applicability is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of tubular component armoring, relates to a marine flexible hose tensile layer armoring technology, and specifically is a combined twisted head structure. Background Art

[0002] Marine pipelines can be primarily categorized into two types: steel pipes, which are made of metal, and flexible pipes, which are a composite of metal and polymer. Compared to steel pipes, flexible pipes offer advantages such as designability, flexibility, ease of laying, recyclability, greater economical development, and improved adaptability to marine environments.

[0003] Conventional flexible hoses are manufactured from multi-layer composite materials, primarily consisting of a thermoplastic polymer layer to ensure liquid-tightness, and flat steel wires wound in a helical structure to form a tensile layer for enhanced strength. This helical structure of the flat steel wires, forming the tensile layer, involves the use of a twisting head structure and pre-twisted flat steel wires to achieve this function.

[0004] At present, marine flexible hoses have different requirements for the tensile layer armoring process (i.e., the required range of tensile layer strength) for different application scenarios, which leads to different requirements for the pitch (i.e., lay length) of the flat steel wire. Among them, since the pitch of the flat steel wire is inversely proportional to the lay angle of the flat steel wire, that is, when the winding radius of the flat steel wire remains at a certain value, the larger the lay angle of the flat steel wire, the smaller the pitch of the winding. In order to ensure that the pre-twisted flat steel wire can be better fitted on the marine flexible hose after passing through the twisting head structure, that is, to prevent the occurrence of warping and the like, it is necessary to cooperate with a twisting head structure that can form an angle that matches the lay angle of the pre-twisted flat steel wire to complete the above functions.

[0005] Therefore, a combined twisting head structure is proposed here, which can adjust the angle formed by itself to match the twist angle formed by the pre-twisted flat steel wire in different tensile layer armoring processes, thereby ensuring the armor quality and achieving strong applicability. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a combined twisting head structure that can adjust the angle formed by itself to correspond to the application requirements of the twist angle of the pre-twisted flat steel wire in different tensile layer armoring processes, thereby ensuring the armor quality and achieving the purpose of strong applicability. The present invention is provided with a twisting head structure including a winch, a shaft sleeve portion with connecting sleeves of different lengths, a guide portion, and a telescopic sleeve. Since the connecting sleeves are detachably connected to each other and the telescopic sleeve can maintain a fixed length, the vertical distance between the guide portion and the winch can be coarsely adjusted and finely adjusted by combining connecting sleeves of different lengths and retracting the telescopic sleeve. Therefore, when the requirements of the tensile layer armoring process change, the angle of the twisting head structure can be accurately adjusted to match the twist angle formed by the pre-twisted flat steel wire in the process requirements through coarse adjustment and fine adjustment, so as to ensure the armor quality and achieve the purpose of strong applicability.

[0007] To achieve the above-mentioned object, the first aspect of the present invention provides a combined twisting head structure, comprising a capstan, a sleeve portion, a guide portion, and a telescopic sleeve;

[0008] The shaft sleeve is fixedly connected to the capstan and is coaxially arranged;

[0009] The end of the sleeve away from the winch has a plurality of connecting sleeves of different lengths, and two adjacent connecting sleeves are detachably connected by fasteners;

[0010] The guide portion is configured as a hollow structure and is fixedly connected to the outermost connecting sleeve via the telescopic sleeve, and is used for passing the flat steel wire on the winch;

[0011] The telescopic sleeve can maintain a fixed length.

[0012] Furthermore, the guide portion includes a fixed sleeve and a line dividing cone sleeve that are fixedly connected;

[0013] The outer wall of the line dividing cone sleeve is annularly provided with a plurality of elastic pins at equal intervals, and a gap is formed between two adjacent elastic pins for the flat steel wire to pass through.

[0014] Furthermore, the telescopic sleeve includes a first sleeve and a second sleeve that are slidably connected to each other;

[0015] The first sleeve and the second sleeve are fixedly connected to the fixing sleeve and the outermost connecting sleeve respectively.

[0016] Furthermore, the telescopic sleeve further includes a telescopic driving member;

[0017] An annular skirt is provided at one end of the first sleeve away from the second sleeve;

[0018] The telescopic driving member is arranged in an annular shape and equidistantly on the outer wall of the second sleeve, and the output end is fixedly connected to the annular skirt.

[0019] Furthermore, the telescopic driving member is configured as a micro oil cylinder.

[0020] Furthermore, a plurality of reinforcing connectors connected to the outer wall of the sleeve portion are provided on one side of the winch;

[0021] A triangular support structure is formed between the reinforcing connector, the shaft sleeve portion and the winch.

[0022] Furthermore, the reinforcing connector is configured as a rigging, and the rigging is equidistantly arranged in a ring shape with the center of the winch as the rotation center.

[0023] Furthermore, the fastener is configured as a bolt.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] By setting up a twisted head structure including a winch, a shaft sleeve portion with connecting sleeves of different lengths, a guide portion and a telescopic sleeve, and since the connecting sleeves are detachably connected to each other and the telescopic sleeve can maintain a fixed length, the coarse adjustment and fine adjustment of the vertical distance between the guide portion and the winch can be completed respectively through the combination of connecting sleeves of different lengths and the extension and contraction of the telescopic sleeve. Therefore, when the requirements of the tensile layer armoring process change, the operator can quickly and accurately adjust the angle of the twisted head structure to match the twist angle corresponding to the flat steel wire in the process requirements through coarse adjustment and fine adjustment, so as to ensure the armoring effect and achieve the purpose of strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of the combined twisting head structure of the utility model;

[0028] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3For this utility model Figure 1 Enlarged view of point B in the middle;

[0030] Figure 4 It is a structural schematic diagram of the shaft sleeve part, the guide part and the telescopic sleeve in the combined twisting head structure of the utility model.

[0031] Figure Number:

[0032] 1. Winch; 2. Shaft sleeve; 21. Connecting sleeve; 3. Guide; 31. Fixed sleeve; 32. Branch cone sleeve; 4. Telescopic sleeve; 41. First sleeve; 42. Second sleeve; 43. Telescopic drive member; 5. Reinforced connector. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1 to 4 As shown, an embodiment of the first aspect of the present invention provides a combined twisting head structure, including a capstan 1, a shaft sleeve portion 2, a guide portion 3 and a telescopic sleeve 4.

[0035] It should be noted that one end of the flat steel wire passes through the capstan 1 and the guide portion 3 in sequence, that is, the angle of the device is Figure 1 As shown in the figure, the angle a can be adjusted by changing the relative distance between the guide portion 3 and the capstan 1. When the angle a is adjusted to match the lay angle of the pre-twisted flat steel wire in the tensile layer armoring process, the fitting effect between the flat steel wire and the winding core can be effectively guaranteed during the armoring process, that is, the occurrence of warping and the like can be effectively avoided, thereby achieving the purpose of improving the armoring quality.

[0036] Moreover, through the adjustable setting of the angle a, it can effectively adapt to the application requirements of pre-twisted flat steel wire in different tensile layer armoring processes, thereby achieving the purpose of strong applicability.

[0037] In this embodiment, the structure is further limited to facilitate rapid adjustment of the angle a, as shown below: the shaft sleeve portion 2 is fixedly connected to the winch 1 and is coaxially arranged.

[0038] The end of the sleeve portion 2 away from the winch 1 has a plurality of connecting sleeves 21 of different lengths, and two adjacent connecting sleeves 21 are detachably connected via fasteners.

[0039] In one example, the fastener is configured as a bolt to facilitate detachable connection by an operator.

[0040] Furthermore, the guide portion 3 is configured as a hollow structure and is fixedly connected to the outermost connecting sleeve 21, which is used to pass the flat steel wire from the capstan 1. Therefore, the operator can adjust the relative distance between the guide portion 3 and the capstan 1 by changing the number or combination of connecting sleeves 21, thereby adjusting the angle of the flat twisting head structure to match the lay angle of the pre-twisted flat steel wire in the armoring process, thereby improving the armoring effect.

[0041] Furthermore, the guide portion 3 and the outermost connecting sleeve 21 are connected via the telescopic sleeve 4, which maintains a fixed length. This means that by adding a telescopic sleeve 4 between the guide portion 3 and the outermost connecting sleeve 21, fine adjustment can be performed, further improving the accuracy of angle adjustment of the twisting head structure and ensuring the proper winding of the flat steel wire around the winding core during subsequent operations.

[0042] The device is provided with a twisted head structure including a winch 1, a sleeve portion 2 with connecting sleeves 21 of different lengths, a guide portion 3 and a telescopic sleeve 4. Since the connecting sleeves 21 are detachably connected to each other and the telescopic sleeve 4 can maintain a fixed length, the vertical distance between the guide portion 3 and the winch 1 can be coarsely adjusted and finely adjusted by combining connecting sleeves 21 of different lengths and extending and retracting the telescopic sleeve 4. Therefore, when the requirements of the tensile layer armoring process change, the operator can quickly and accurately adjust the angle of the twisted head structure to match the twist angle corresponding to the flat steel wire in the process requirements through coarse adjustment and fine adjustment, so as to ensure the armoring effect and achieve the purpose of strong applicability.

[0043] In this embodiment, a specific guide portion 3 is provided for passing the flat steel wire.

[0044] Specifically, the guide part 3 includes a fixedly connected fixing sleeve 31 and a dividing cone sleeve 32. The outer wall of the dividing cone sleeve 32 is annular and has multiple elastic pins (not numbered in the figure) equidistantly arranged. A gap is formed between two adjacent elastic pins for the flat steel wire to pass through, which is used to limit and separate the flat steel wire.

[0045] In a further embodiment, a specific telescopic sleeve 4 is also provided to facilitate rapid locking after telescoping.

[0046] Specifically, the telescopic sleeve 4 includes a first sleeve 41 and a second sleeve 42 that are slidably plugged into each other.

[0047] The first sleeve 41 and the second sleeve 42 are fixedly connected to the fixing sleeve 31 and the outermost connecting sleeve 21 respectively.

[0048] The telescopic sleeve 4 further includes a telescopic driving member 43 .

[0049] An annular skirt is provided at one end of the first sleeve 41 away from the second sleeve 42. The telescopic drive member 43 is annularly arranged at equal intervals on the outer wall of the second sleeve 42, with its output end fixedly connected to the annular skirt. This allows the telescopic drive member 43 to push the first sleeve 41 to move, achieving precise adjustment between the guide portion 3 and the capstan 1.

[0050] In this embodiment, the telescopic driving member 43 is configured as a micro oil cylinder.

[0051] In other embodiments, in order to improve the connection strength between the winch 1 and the shaft sleeve 2, a reinforcing connection member 5 is further provided.

[0052] Specifically, a plurality of reinforcing connectors 5 connected to the outer wall of the sleeve portion 2 are provided on one side of the winch 1 .

[0053] The reinforcing connector 5, the shaft sleeve portion 2 and the winch 1 form a triangular support structure, thereby effectively improving the overall strength of the device.

[0054] The reinforcing connector 5 is configured as a rigging, and the rigging is equidistantly arranged in a ring shape with the center of the circle of the winch 1 as the rotation center.

[0055] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A combined twisted head structure, characterized in that: It comprises a winch (1), a shaft sleeve portion (2), a guide portion (3) and a telescopic sleeve (4); The shaft sleeve portion (2) is fixedly connected to the winch (1) and is coaxially arranged; The end of the shaft sleeve portion (2) away from the winch (1) has a plurality of connecting sleeves (21) of different lengths, and two adjacent connecting sleeves (21) are detachably connected via fasteners; The guide portion (3) is configured as a hollow structure and is fixedly connected to the outermost connecting sleeve (21) via the telescopic sleeve (4) and is used for passing the flat steel wire on the winch (1); The telescopic sleeve (4) is capable of maintaining a fixed length.

2. The combined twisting head structure according to claim 1, characterized in that: The guide portion (3) comprises a fixed sleeve (31) and a line dividing cone sleeve (32) that are fixedly connected; The outer wall of the line dividing cone sleeve (32) is annularly provided with a plurality of elastic pins at equal intervals, and a gap for the flat steel wire to pass through is formed between two adjacent elastic pins.

3. The combined twisting head structure according to claim 2, characterized in that: The telescopic sleeve (4) comprises a first sleeve (41) and a second sleeve (42) which are slidably plugged into each other; The first sleeve (41) and the second sleeve (42) are fixedly connected to the fixing sleeve (31) and the outermost connecting sleeve (21), respectively.

4. The combined twisting head structure according to claim 3, characterized in that: The telescopic sleeve (4) further includes a telescopic driving member (43); An annular skirt is provided at one end of the first sleeve (41) away from the second sleeve (42); The telescopic driving member (43) is arranged in an annular shape and equidistantly on the outer wall of the second sleeve (42), and the output end is fixedly connected to the annular skirt.

5. The combined twisting head structure according to claim 4, characterized in that: The telescopic driving member (43) is configured as a micro oil cylinder.

6. The combined twisting head structure according to claim 1, characterized in that: A plurality of reinforcing connectors (5) connected to the outer wall of the shaft sleeve portion (2) are provided on one side of the winch (1); A triangular support structure is formed between the reinforcing connecting piece (5), the shaft sleeve portion (2), and the winch (1).

7. The combined twisting head structure according to claim 6, characterized in that: The reinforcing connecting member (5) is configured as a rigging, and the rigging is arranged in a circular shape with equal distances, with the center of the circle of the winch (1) as the rotation center.

8. The combined twisting head structure according to claim 1, characterized in that: The fastener is configured as a bolt.

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