Offshore wind cable lowering device

Abstract

The utility model belongs to the technical field of offshore wind power installation equipment, and particularly relates to an offshore wind cable lowering device which comprises a main body frame and a cable storage winding drum, one end of the cable storage winding drum is connected with a driving motor fixed with the main body frame, and the other end of the cable storage winding drum is connected with a driving shaft through a transmission assembly. A threaded rod and a limiting rod which are parallel to the driving shaft penetrate through the bottom of the main body frame, a shifting fork block penetrates through the threaded rod and the limiting rod, a driving wheel penetrates through the driving shaft, and a driven wheel vertically aligned with the driving wheel is detachably arranged at one end of the shifting fork block; by arranging the transmission assembly, a driving motor can be used for driving a driving shaft and a driving wheel to rotate, so that a dragging force is applied to a cable by utilizing mutual extrusion of the driving wheel and a driven wheel when the cable is put down, and further smooth putting down of the cable is ensured; therefore, the driving wheel can be driven to horizontally move, and the cable can be uniformly wound on the cable storage winding drum.

Description

TECHNICAL FIELD

[0001] The utility model belongs to offshore wind power installation equipment technical field, concretely relates to a kind of offshore wind cable lowering device. BACKGROUND

[0002] With the development of wind power industry, offshore wind power has become the development trend in the future, when laying wind power cable, it is necessary to connect one end of wind power cable to a wind turbine first, and then continue to sail to another wind turbine position, cut off the other end of wind power cable, and then connect two wind turbines in series.

[0003] After the existing wind power cable is lowered, it is dragged to another wind turbine position, which can easily cause damage to the subsequent wind power cable. Meanwhile, in the process of lowering the existing cable, only the gravity of the cable itself is relied on, which can cause the phenomenon of unsmooth lowering, dragging damage or cable slack on the cable storage reel, and manual arrangement or dragging is required, thereby affecting the lowering efficiency. Therefore, the utility model provides an offshore wind power cable lowering device. UTILITY MODEL CONTENTS

[0004] To solve the problems in the above background art, the utility model discloses an offshore wind power cable lowering device, which has the characteristics of high cable lowering efficiency and convenient cable recovery.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An offshore wind power cable lowering device includes a main body frame, a cable storage reel is rotatably arranged in the main body frame, the cable storage reel is uniformly wound with a cable, one end of the cable storage reel is connected with a driving motor fixedly connected with the main body frame, and the other end of the cable storage reel is connected with a driving shaft through a transmission assembly.

[0007] A threaded rod and a limiting rod parallel to the driving shaft are arranged through the bottom of the main body frame, a yoke block is connected to the threaded rod, the limiting rod is connected with the yoke block, a driving wheel is arranged on the driving shaft, and a driven wheel vertically aligned with the driving wheel is detachably installed on the yoke block.

[0008] As a preferred offshore wind power cable lowering device of the utility model, a fixing ear for fixing the end of the cable is arranged on the cable storage reel.

[0009] As a preferred offshore wind power cable lowering device of the utility model, the transmission assembly includes a belt pulley and a driven belt pulley, the belt pulley is connected with the other end of the cable storage reel, the driven belt pulley is connected with one end of the driving shaft, and the driving belt pulley and the driven belt pulley are driven by a belt.

[0010] As a kind of offshore wind cable device for putting down of the utility model, the one end of the fork block is penetrated through the driving shaft, and the driving wheel is located in the middle part of the one end of the fork block.

[0011] As a kind of offshore wind cable device for putting down of the utility model, sawtooth sleeve is equipped on the driving shaft, and sawtooth groove that is matched with the sawtooth sleeve is formed in the middle part of the driving wheel.

[0012] As a kind of offshore wind cable device for putting down of the utility model, the one end of the fork block and the threaded rod are connected, and the threaded hole that is engaged with the threaded rod is arranged, the fork block is screwed with the threaded rod through the threaded hole, and the one end of the threaded rod is equipped with rotating handle.

[0013] Compared with prior art, the utility model has the advantages that: the transmission assembly is arranged, the driving shaft and the driving wheel can be rotated by driving motor, so that the mutual extrusion of the driving wheel and the driven wheel is utilized to apply drag force to cable when cable is put down, so that the smooth putting down of cable is ensured, and the rotating of the threaded rod drives the horizontal movement of the fork block, so that the driving wheel can be driven to move horizontally, and the uniform winding of excess cable on the cable storage reel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0015] Figure 1 It is overall structure schematic diagram of the utility model;

[0016] Figure 2 It is another angle partial structure schematic diagram of the utility model;

[0017] Figure 3 It is sectional view of the utility model;

[0018] Figure 4 It is structure schematic diagram of transmission assembly in the utility model;

[0019] Figure 5 It is structure schematic diagram of driving wheel in the utility model.

[0020] In the drawing:1, main body frame;2, cable storage reel;3, driving motor;4, transmission assembly;401, driving pulley;402, driven pulley;403, belt;5, driving shaft;6, threaded rod;7, limiting rod;8, fork block;9, driving wheel;10, driven wheel;11, fixed lug;12, sawtooth sleeve;13, rotating handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] Example: Figures 1-3 As shown, an offshore wind power cable lowering device includes a main frame 1, a cable storage drum 2 is rotatably provided in the main frame 1, and a cable is evenly wound on the cable storage drum 2. One end of the cable storage drum 2 is connected to a drive motor 3 fixedly connected to the main frame 1, and the other end of the cable storage drum 2 is connected to a drive shaft 5 through a transmission assembly 4;

[0023] A threaded rod 6 and a limiting rod 7 are provided at the bottom of the main frame 1 and are parallel to the drive shaft 5. A shift fork block 8 is connected to the threaded rod 6. The limiting rod 7 is connected to the shift fork block 8. A drive wheel 9 is provided on the drive shaft 5. A driven wheel 10 is detachably mounted on the shift fork block 8 and is aligned vertically with the drive wheel 9.

[0024] The cable storage drum 2 is provided with a fixing ear 11 for fixing the end of the cable.

[0025] It should be noted that, in this embodiment, the cable is wound from the top of the cable storage drum 2, and the outer sides of the driving wheel 9 and the driven wheel 10 are provided with wire pressing grooves, and protective pads can be provided inside the wire pressing grooves of the driving wheel 9 and the driven wheel 10, or the driven wheel 10 is made of flexible material to prevent the cable from being squeezed and damaged.

[0026] It should be noted that, in this embodiment, the driven wheel 10 is detachably provided with bolts, so that the driven wheel 10 can be replaced according to the diameter of the cable, ensuring that the driving wheel 9 and the driven wheel 10 can extrude different cables.

[0027] In this embodiment, by setting up a transmission assembly 4, the drive motor 3 can be used to drive the drive shaft 5 and the drive wheel 9 to rotate, so that when the cable is lowered, the driving wheel 9 and the driven wheel 10 are squeezed together to apply a drag force to the cable, thereby ensuring the smooth lowering of the cable. At the same time, the rotation of the threaded rod 6 drives the fork block 8 to move horizontally, thereby driving the drive wheel 9 to move horizontally, thereby ensuring that the excess cable is evenly wound on the cable storage drum 2.

[0028] like Figure 4As shown, in an optional embodiment, the transmission assembly 4 includes a pulley 401 and a driven pulley 402, the pulley 401 is connected to the other end of the cable storage drum 2, the driven pulley 402 is connected to one end of the drive shaft 5, and the driving pulley 401 and the driven pulley 402 are driven by a belt 403.

[0029] In this embodiment, the drive motor 3 is started to drive the cable storage drum 2 to rotate. At the same time, the cable storage drum 2 uses the driving pulley 401 and the belt 403 to drive the driven pulley 402 to rotate. The driven pulley 402 drives the driving shaft 5 to rotate, and the driving shaft 5 drives the driving wheel 9 to rotate. This ensures that the cable storage drum 2 and the driving wheel 9 rotate synchronously. By adjusting the transmission ratio of the driving pulley 401 and the driven pulley 402, stable dragging of the cable can be achieved.

[0030] It should be noted that the outer diameter of the cable storage drum 2 is relatively large, and the reduction of the cable will not have much impact on the outer diameter of the cable storage drum 2, and the wire groove of the driving wheel 9 can be set to a smooth surface. In this way, when the cable is lowered and lowered on the cable storage drum 2 at a speed different from the dragging speed of the driving wheel 9, the cable can slip on the driving wheel 9, thereby preventing the cable from being damaged by dragging.

[0031] In an optional embodiment, one end of the fork block 8 passes through the drive shaft 5, and the drive wheel 9 is located in the middle of one end of the fork block 8. The fork block 8 can push the drive wheel 9 left and right, so that the drive wheel 9 can rotate while moving horizontally.

[0032] like Figure 5 As shown, in an optional embodiment, a serrated sleeve 12 is provided on the drive shaft 5, and a serrated groove cooperating with the serrated sleeve 12 is opened in the middle of the drive wheel 9, and an internal threaded hole engaged with the threaded rod 6 is provided at one end of the fork block 8 connected to the threaded rod 6, and the fork block 8 is threadedly engaged with the threaded rod 6 through the internal threaded hole, and a rotating handle 13 is provided at one end of the threaded rod 6.

[0033] In this embodiment, by rotating the handle 13 to rotate the threaded rod 6 in the forward and reverse directions, the fork block 8 can be driven to move back and forth on the threaded rod 6, thereby driving the driving wheel 9 to move back and forth, thereby ensuring the uniform lowering and recovery of the cable.

[0034] The working principle and use process of the utility model are as follows: the cable end is fixed on the fixing lug 11 on the cable storage reel 2, and the cable is wound along the rotation of the cable storage reel 2, and the other end of the cable passes between the driving wheel 9 and the driven wheel 10; when the cable needs to be lowered, the driving motor 3 is started to drive the cable storage reel 2 to rotate, meanwhile, the cable storage reel 2 drives the driving shaft 5 to rotate through the belt 403, the driving shaft 5 drives the driving wheel 9 to rotate, the driving wheel 9 and the driven wheel 10 extrude and drive the cable, thereby, the drag force is applied to the cable, the rotation handle 13 is rotated to rotate the screw rod 6 in the forward rotation and reverse rotation, the yoke block 8 is driven to reciprocate on the screw rod 6, thereby, the driving wheel 9 is driven to reciprocate, meanwhile, the transport ship drives the lowering device to move at a constant speed, thereby, the uniform lowering or recovery of the cable can be ensured; meanwhile, the driving wheel 9 applies resistance when the excess cable is recovered, thereby, the cable winding cannot be loosened.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A marine wind cable lowering device, comprising a main frame (1), characterized in that: a cable storage reel (2) is rotatably arranged in the main frame (1), the cable storage reel (2) is uniformly wound with a cable, one end of the cable storage reel (2) is connected with a driving motor (3) fixedly connected with the main frame (1), and the other end of the cable storage reel (2) is connected with a driving shaft (5) through a transmission assembly (4); a threaded rod (6) parallel to the driving shaft (5) and a limiting rod (7) are arranged through the bottom of the main frame (1), a yoke block (8) is connected on the threaded rod (6), the limiting rod (7) is connected with the yoke block (8), a driving wheel (9) is arranged on the driving shaft (5), and a driven wheel (10) vertically aligned with the driving wheel (9) is detachably installed on the yoke block (8).

2. A marine wind cable lowering device according to claim 1, characterised in that: A fixing lug (11) for fixing the end of the cable is arranged on the cable storage reel (2).

3. A marine wind cable lowering device according to claim 2, characterised in that: The transmission assembly (4) comprises a driving pulley (401) and a driven pulley (402), the driving pulley (401) is connected with the other end of the cable storage reel (2), the driven pulley (402) is connected with one end of the driving shaft (5), and the driving pulley (401) and the driven pulley (402) are driven by a belt (403).

4. A marine wind turbine cable lowering arrangement according to claim 3, characterised in that: One end of the yoke block (8) penetrates the driving shaft (5), and the driving wheel (9) is connected with one end of the yoke block (8).

5. A marine wind turbine cable lowering arrangement according to claim 4, characterised in that: A sawtooth sleeve (12) is arranged on the driving shaft (5), and a sawtooth groove is formed in the middle of the driving wheel (9) and matched with the sawtooth sleeve (12).

6. A marine wind turbine cable lowering arrangement according to claim 5, characterised in that: One end of the yoke block (8) connected with the threaded rod (6) is provided with an internal thread hole matched with the threaded rod (6), the yoke block (8) is threadedly matched with the threaded rod (6) through the internal thread hole, and one end of the threaded rod (6) is provided with a rotating handle (13).

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