Cable back-twist wheel

Abstract

The utility model discloses a cable back-twist wheel which comprises a back-twist wheel, a hoisting support, a driving motor, a conveying chain and a rotating body mechanism, the hoisting support comprises a left hoisting support and a right hoisting support which are arranged on the two sides of the back-twist wheel respectively, the rotating body mechanism comprises a main shaft and a bearing, and the rotating body mechanism penetrates through the center of the back-twist wheel; the lifting support is of a triangular structure with a horizontal bottom edge, the bearing is erected in the bottom edge center of the lifting support, and the connecting line of the bearing and the bottom edge center of the lifting support penetrates through the center of the back-twist wheel. Lifting lugs are arranged at the end points of the two sides of the lifting support, and the driving motor is fixed to the bottom edge of the lifting support and located between the rotating body mechanism and the lifting lug on one side. According to the utility model, the driving motor and the rotating body mechanism are arranged on the hoisting bracket and the lifting lugs are additionally arranged, so that the transmission path is short, the operation shaking is reduced, the hoisting stability is improved, the possibility that the back-twist wheel falls off is reduced, the maintenance frequency in the cable back-twist process is reduced, and the cable laying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a cable untwisting wheel, belonging to the field of cable laying devices. Background Art

[0002] During the construction of offshore wind power projects, a large number of cables are required. During the laying process, cable unwinding and laying are necessary steps. During the cabling, stretching, and moving of the cable, huge internal torsional stresses are often generated, which can cause damage to the cable structure or a decline in performance. To eliminate or relieve this internal torsion, an untwisting wheel is needed before cable laying. The commonly used untwisting wheel structures currently generally have relatively serious shaking and are prone to falling off during hoisting. This problem leads to repeated hoisting of the untwisting wheel, seriously affecting the laying efficiency of submarine cables. Therefore, it is necessary to develop a cable untwisting wheel with better stability. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cable untwisting wheel to solve the technical problems in the above background.

[0004] The technical solution to achieve the purpose of the utility model is: a cable untwisting wheel, comprising an untwisting wheel, a hoisting bracket, a driving motor, a transmission chain, and a rotating body mechanism. The hoisting bracket includes a left hoisting bracket and a right hoisting bracket respectively arranged on both sides of the untwisting wheel. The rotating body mechanism includes a main shaft and bearings, which are arranged through the center of the untwisting wheel. The hoisting bracket is a triangular structure with a horizontal bottom edge. The bearings are arranged at the center of the bottom edge of the hoisting bracket, and the connection line between the bearings and the center of the bottom edge of the hoisting bracket passes through the center of the untwisting wheel. Hoisting lugs are arranged at both end points of the hoisting bracket, and the driving motor is fixed on the bottom edge of the hoisting bracket, located between the rotating body mechanism and one side of the hoisting lug.

[0005] In the utility model, both the driving motor and the rotating body mechanism are arranged on the hoisting bracket, with a small distance between them and a short transmission path, which can effectively reduce the shaking during the transmission process. The utility model also arranges hoisting lugs at both end points of the hoisting bracket to increase the number of hoisting points, thereby improving the hoisting stability, reducing the possibility of the untwisting wheel falling off, reducing the number of repairs during the cable untwisting process, and improving the cable laying efficiency.

[0006] Radial cross-shaped arranged brackets are provided inside the untwisting wheel. Circumferential support columns are arranged between the brackets, and an outer ring groove parallel to the untwisting wheel bracket is arranged on its outer ring.

[0007] The arrangement of the above brackets and support columns improves the structural stability of the untwisting wheel. The arrangement of the outer ring groove can limit the movement range of the cable and reduce the possibility of its shaking.

[0008] A driving wheel is provided at the output end of the driving motor; a roller bracket is fixedly installed at the center of the torque-removing wheel, and a driven wheel is fixedly installed on the roller bracket. The main shaft passes through the bearing, the roller bracket and the driven wheel; both the driving wheel and the driven wheel are engaged with the transmission chain.

[0009] With the above structure, the main shaft is connected to the torque-removing wheel through the roller bracket. There are two relatively stable contact points between the main shaft and the torque-removing wheel bracket, and its erection is more stable, and it is less likely to fall off compared with the scheme of setting the bearing on the torque-removing wheel.

[0010] The radius of the driving wheel is smaller than that of the driven wheel, and the bearing is a deep groove ball bearing. Among them, using a small wheel to drive a large wheel can obtain a larger torque under the same driving force condition, and using a deep groove ball bearing can enable the main shaft to obtain a larger load capacity, thereby increasing its cable carrying capacity and performing more stably when dealing with large-diameter cables.

[0011] The torque-removing wheel is prepared by an integral casting process, and its surface is treated with anti-corrosion paint spraying to obtain greater mechanical strength and better corrosion resistance, and to improve the service life.

[0012] The driving wheel and the driven wheel are located in the same plane, and their offset error is less than 2 / 1000 of their center distance, thereby further reducing the shaking and improving the cable-carrying stability.

[0013] Adopting the above technical solution, the utility model has the following beneficial effects:

[0014] (1) The utility model adopts the method of setting both the driving motor and the rotating body mechanism on the lifting bracket to shorten the transmission path and setting lifting lugs at both end points of the lifting bracket to increase the number of lifting points, so as to reduce shaking and improve the lifting stability, thereby reducing the possibility of the torque-removing wheel falling off, reducing the number of repairs during the cable torque-removing process, and improving the cable laying efficiency.

[0015] (2) Inside the torque-removing wheel of the utility model, there are radially arranged cross-shaped brackets, circumferential support columns are arranged between the brackets, and an outer ring groove parallel to the outer ring of the torque-removing wheel bracket is arranged on its outer ring, effectively improving the structural stability and operating stability of the torque-removing wheel.

[0016] (3) The utility model effectively increases the contact points between the main shaft and the support structure by mounting the main shaft on the torque-removing wheel bracket, and it is less likely to fall off compared with the scheme of setting the bearing on the torque-removing wheel.

[0017] (4) The utility model uses a small wheel to drive a large wheel and a deep groove ball bearing, and can obtain a larger torque under the same energy consumption, and the main bearing has a stronger load capacity and performs more stably when dealing with large-diameter cables.

[0018] (5) The untwisting wheel of the present utility model is prepared by an integral casting process, and its surface is treated with anti-corrosion paint spraying, which can obtain greater mechanical strength and better corrosion resistance, and improve the service life.

[0019] (6) The driving wheel and the driven wheel of the present utility model are located in the same plane, and their offset error is less than 2 / 1000 of their center distance, which can further reduce the shaking and improve the cable-carrying stability. Description of the Drawings

[0020] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments and in conjunction with the drawings, where

[0021] Figure 1 is a schematic structural diagram of the present utility model.

[0022] Figure 2 is a schematic cross-sectional view of the present utility model.

[0023] Figure 3 is a schematic diagram showing the relationship between the driving motor and the rotating body mechanism of the present utility model.

[0024] Figure 4 is a schematic diagram showing the arrangement of the driving wheel and the driven wheel of the present utility model.

[0025] Figure 5 is a schematic diagram showing the arrangement of the main shaft and the bearing of the present utility model.

[0026] The reference numerals in the drawings are:

[0027] Untwisting wheel 1, outer ring notch 11, roller bracket 12, driven wheel 13, lifting bracket 2, lifting lug 21, driving motor 3, driving wheel 31, conveyor chain 4, rotating body mechanism 5, main shaft 51, bearing 52. Specific Embodiments

[0028] In order to better understand the above technical solutions, the following will detail the above technical solutions in conjunction with the drawings of the specification and specific embodiments.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0031] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0033] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" 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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. The present utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0034] See Figures 1 to 5 , a cable untwisting wheel, comprising an untwisting wheel 1, a lifting bracket 2, a driving motor 3, a conveyor chain 4 and a rotating body mechanism 5. The lifting bracket 2 includes a left lifting bracket and a right lifting bracket respectively arranged on both sides of the untwisting wheel. The rotating body mechanism 5 includes a main shaft 51 and a bearing 52, which is arranged through the center of the untwisting wheel 1. The lifting bracket 2 is a triangular structure with a horizontal bottom edge. The bearing 52 is mounted at the center of the bottom edge of the lifting bracket 2, and the connecting line between the bearing 52 and the center of the bottom edge of the lifting bracket 2 passes through the center of the untwisting wheel 1. Lifting lugs 21 are arranged at both ends of the two sides of the lifting bracket 2. The driving motor 3 is fixed on the bottom edge of the lifting bracket 2, between the rotating body mechanism 5 and one side of the lifting lug 21.

[0035] A driving motor 3 is provided with a driving wheel 31 at its output end; a roller bracket 11 is fixedly installed at the center of the untwisting wheel 1, and a driven wheel 13 is fixedly installed on the roller bracket 11. The main shaft 51 passes through the bearing 52, the roller bracket 12 and the driven wheel 13; both the driving wheel 31 and the driven wheel 13 are engaged with the transmission chain 4.

[0036] During use, the hanging rope is connected to the lifting lug 21, then the cable is sleeved on the untwisting wheel 1, the driving motor 3 is started, the driving wheel 31 drives the driven wheel 13 through the transmission chain 4, the roller bracket 11 rotates, and the untwisting wheel 1 is driven by the rolling bracket 11 to twist, thereby driving the cable to perform the untwisting operation.

[0037] In the above structure, the driving motor 3 is fixed to the lifting bracket 2 by bolts. Bearing seats are respectively fixed at the center positions of the bottom edges of the left lifting bracket and the right lifting bracket. The bearing 52 passes through the bearing seat for fixation. A bearing limit sleeve is arranged between the bearing 52 and the roller bracket 11, and the axial limit of the bearing is fixed by a retaining ring.

[0038] The untwisting wheel 1 is internally provided with radially arranged cross-shaped brackets. Circumferential support columns are arranged between the brackets, and an outer groove 11 parallel to the outer ring of the untwisting wheel bracket is arranged on its outer ring.

[0039] The radius of the driving wheel 31 is smaller than the radius of the driven wheel 13, and the bearing 52 is a deep groove ball bearing.

[0040] The untwisting wheel 1 is prepared by an integral casting process, and its surface is treated with anti-corrosion paint spraying.

[0041] The driving wheel 31 and the driven wheel 13 are located in the same plane, and their offset error is less than 2 / 1000 of their center distance.

[0042] The above specific embodiments have further elaborated the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cable untwisting wheel, characterized in that: It includes a torque-removing wheel (1), a hoisting bracket (2), a driving motor (3), a conveyor chain (4) and a rotating body mechanism (5). The hoisting bracket (2) includes a left hoisting bracket and a right hoisting bracket respectively arranged on both sides of the torque-removing wheel. The rotating body mechanism (5) includes a main shaft (51) and a bearing (52), which is arranged through the center of the torque-removing wheel (1). The hoisting bracket (2) is a triangular structure with a horizontal bottom edge. The bearing (52) is mounted on the center of the bottom edge of the hoisting bracket (2), and the connection line between the bearing (52) and the center of the bottom edge of the hoisting bracket (2) passes through the center of the torque-removing wheel (1). Hoisting lugs (21) are arranged at both end points of the hoisting bracket (2). The driving motor (3) is fixed on the bottom edge of the hoisting bracket (2), between the rotating body mechanism (5) and one hoisting lug (21).

2. The cable untwisting wheel according to claim 1, characterized in that: Radial cross-shaped arranged brackets are provided inside the torque-removing wheel (1). Circumferential support columns are arranged between the brackets, and an outer ring groove (11) parallel to the bracket of the torque-removing wheel is provided on its outer ring.

3. A cable untwisting wheel according to claim 1, characterized in that: A driving wheel (31) is provided at the output end of the driving motor (3). A roller bracket (12) is fixedly installed at the center of the torque-removing wheel (1), and a driven wheel (13) is fixedly installed on the roller bracket (12). The main shaft (51) passes through the bearing (52), the roller bracket (12) and the driven wheel (13). Both the driving wheel (31) and the driven wheel (13) are engaged with the conveyor chain (4).

4. A cable untwisting wheel according to claim 3, characterized in that: The radius of the driving wheel (31) is smaller than the radius of the driven wheel (13), and the bearing (52) is a deep groove ball bearing.

5. A cable untwisting wheel according to claim 1, characterized in that: The torque-removing wheel (1) is prepared by an integral casting process, and its surface is treated with anti-corrosion paint spraying.

6. The cable untwisting wheel according to claim 3, wherein: The driving wheel (31) and the driven wheel (13) are located in the same plane, and their offset error is less than 2 / 1000 of their center distance.

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