Cable mounting and fixing device and method for wind power generation tower

Abstract

The invention discloses a cable mounting and fixing device for a wind power generation tower in the technical field of wind power generation, which comprises a traction disc, an upper cylinder is connected below the traction disc, mounting assemblies are arranged at two ends of the upper cylinder, a lead-in rod is arranged between the two mounting assemblies, and the lead-in rod can be inserted between cable reels. A traction assembly is arranged below the leading-in rod, the traction assembly can pull a cable reel on the leading-in rod to rotate and can conduct partitioned traction on multiple sets of cables, the installation assembly comprises a connecting frame, the lower end of the connecting frame is connected with the leading-in rod, the upper end of the connecting frame is connected with an upper air cylinder, and the lower end of the connecting frame is connected with a movable block through a telescopic rod; according to the cable traction device, the two sides of a traction cable are supported through the connecting frame and the pulley pieces, the cable is prevented from making contact with the interior of a power generation tower, the possibility of abrasion to the cable is reduced, dislocation, intertwining and the like of the cable are avoided, and efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation technology, in particular to a cable installation fixing device and method for a wind power generation tower. BACKGROUND

[0002] When the wind power generation equipment is assembled, the cable needs to be pulled from the bottom to the top of the wind power generation tower. The existing cable pulling equipment mostly needs manual fish arm instruments to cooperate, and the cable is pulled from the bottom to the top of the power generation tower through the arm.

[0003] Since the bottom of the cable is often connected with electrical equipment, the arm is bent to move the cable reel, and the cable position and pulling force during the pulling process need to be adjusted several times to avoid the cable connection at the bottom being broken during the pulling process of the arm. Since the cable is routed from the inside of the power generation tower, too fast pulling speed can cause large friction between the cable and the inner wall of the power generation tower, and even cause damage to the cable. Slow pulling and timely adjustment of the cable position to ensure the safety of the cable during the pulling process will affect the efficiency of the cable installation and the installation progress of the entire power generation equipment. SUMMARY

[0004] The technical problem of the present application is to provide a cable installation fixing device and method for a wind power generation tower, which supports on both sides of the pulled cable through a connecting frame and a pulley piece, avoids contact between the cable and the inside of the power generation tower, reduces the possibility of wear and tear on the cable, and the connecting frame is symmetrically supported on the inner wall of the power generation tower, which can increase the balance during the equipment pulling process, avoid cable misalignment and entanglement, and improve efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a cable installation fixing device for a wind power generation tower, comprising a traction disc, an upper air cylinder connected below the traction disc, an installation assembly provided at both ends of the upper air cylinder, a lead-in rod provided between the two installation assemblies, the lead-in rod being capable of being inserted between the cable reels, a pulling assembly provided below the lead-in rod, the pulling assembly being capable of pulling the cable reels on the lead-in rod to rotate and capable of performing multi-group cable partition pulling, and the installation assembly comprising:

[0006] a connecting frame, the lower end of the connecting frame being connected with the lead-in rod, the upper end of the connecting frame being connected with the upper air cylinder, and the lower end of the connecting frame being connected with a movable block through an extension rod;

[0007] a pulley piece, the pulley piece being provided with two groups, the two groups of pulley pieces being connected at the lower end of the connecting frame through a diamond ring, the movable block being capable of being sleeved into the diamond ring, and the pulley piece being capable of being symmetrically supported on the inner wall of the wind power generation tower.

[0008] As a further scheme of the present application, the connecting frame comprises a movable frame, the lower end of the movable frame is fixedly installed with an inner extension frame and a telescopic rod, the inner extension frame is located at the inner side and the lower end is fixedly connected with one end of the lead-in rod, the telescopic rod is composed of a threaded rod and a threaded sleeve, and the lower end of the inner extension frame is fixedly installed with a lower air cylinder.

[0009] As a further scheme of the present application, the moving part comprises a curved disc, a plurality of groups of casters are fixedly installed on the outer side of the curved disc, the plurality of groups of casters are arranged in a circumferential array and are equidistantly distributed on the edge of the curved disc, a connecting steel pipe is fixedly installed on the inner side of the curved disc, and the upper end of the connecting steel pipe is fixedly connected with the rhombic ring.

[0010] As a further scheme of the present application, the pulling assembly comprises two groups of U-shaped frames and two groups of clamping rods, the horizontal section of the U-shaped frame is located at the upper end, the vertical sections on both sides are located at the lower end and are slidably connected with the horizontal section, an inner air cylinder is arranged between the two groups of vertical sections of the two groups of U-shaped frames, and the upper end of the U-shaped frame is fixedly connected with the free end of the lower air cylinder.

[0011] As a further scheme of the present application, the clamping rod is fixedly connected between the two groups of U-shaped frames, the inner air cylinder can be contracted to enable the two groups of clamping rods to approach each other, a plurality of groups of limiting stop pieces are slidably connected on the clamping rod, the limiting stop piece is composed of two groups of limiting rings and a movable plate, the limiting ring is welded from a rectangular ring at the upper end and a circular ring at the lower end, the circular ring at the lower end can be slidably connected on the surface of the clamping rod, the movable plate can pass through the rectangular ring at the upper end, the two groups of limiting rings are connected in series through the movable plate to form a limiting stop piece, and the two groups of limiting rings are respectively sleeved on the clamping rods on both sides.

[0012] As a further scheme of the present application, a cross frame is arranged at the middle position of the traction disc, mounting frames are symmetrically installed on the lower surface of the traction disc, the lower end of the mounting frame is fixedly connected with the upper air cylinder, an air pump is fixedly installed in the mounting frame, a connecting hose is arranged between the air pump and the upper air cylinder, and the air pump can input gas into the upper air cylinder through the connecting hose.

[0013] As a further scheme of the present application, the lead-in rod comprises a left connecting rod and a right connecting rod, a threaded cavity is arranged in the left connecting rod, a threaded column matched with the threaded cavity is arranged on the right connecting rod, and the left connecting rod and the right connecting rod are respectively clamped with the inner extension frame.

[0014] A cable installation and fixing method of a wind power tower, and the specific steps of the cable installation and fixing method are as follows:

[0015] Step one: the left connecting rod and the right connecting rod are led in from both sides of the cable disc, so that the cable disc is sleeved in the lead-in rod;

[0016] Step two: the two ends of the lead-in rod are respectively fixedly connected with the two inner extension frames, so that the lead-in rod is between the two groups of connecting frames, and the lower end of the cable is passed between the clamping rods;

[0017] Step three: the traction rope of the boom is fixedly connected with the cross frame on the traction disc;

[0018] Step four: the device is sent into the inside of the power tower, the distance between the two connecting frames is adjusted through the upper air cylinder, so that the casters abut against the inner wall of the power tower;

[0019] Step five: the boom pulls the traction disc to move upwards, so that the casters rotate and slide upwards along the inner wall of the power tower;

[0020] Step six: the lower air cylinder continuously extends upwards and downwards during the upward movement, so that the clamping rods move upwards and downwards, and the clamping rods pull the cable downwards.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. In the present application, the connecting frames are on the two sides of the cable disc during the pulling process, which serves as a protective effect on the cable to reduce the possibility of friction inside the wind power tower during the pulling process. The pulley components at the lower end of the connecting frames symmetrically abut against the inside of the wind power tower during the pulling process, so that the pulley components rotate along the inside of the wind power tower during the pulling process. Due to the supporting effect of the pulley components on the wind power tower, the shaking of the cable disc during the pulling process is reduced, so that the cable disc is in a relatively vertical upward path, thereby reducing the entanglement and friction of the cable during the pulling process, and ensuring the safety of the cable during the pulling process.

[0023] 2. In the present application, the pulling assembly is below the lead-in rod. During the upward movement of the cable disc along with the traction disc, the cable disc generates a dragging force on the lower end of the cable, and the pulling assembly pulls the cable disc downwards to rotate, so that the cable disc always maintains a uniform unwinding progress during the upward movement, thereby leaving enough freedom between the cable disc and the bottom cable connection end, avoiding the bottom cable from being disconnected from the connector due to the rapid upward movement of the cable disc and the generation of a large dragging force, thereby ensuring that the upward movement of the cable is not interrupted by the bottom connection and increasing the installation efficiency of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0026] Figure 2 This is a schematic diagram of the limiting stop in this invention;

[0027] Figure 3 This is a schematic diagram of the curved disk structure in this invention;

[0028] Figure 4 This is a cross-sectional view of the guide rod in this invention;

[0029] Figure 5 This is a flowchart illustrating the operation of the present invention.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Traction disc; 2. Cross; 3. Mounting bracket; 4. Upper cylinder; 5. Movable frame; 6. Inner extension frame; 7. Guide rod; 701. Left connecting rod; 702. Right connecting rod; 8. Telescopic rod; 801. Movable block; 9. Curved disc; 10. Casters; 11. Lower cylinder; 12. U-shaped frame; 13. Clamping rod; 14. Limit stop; 15. Connecting steel pipe; 16. Diamond ring; 17. Movable plate; 18. Limit ring; 19. Inner cylinder. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-5 This invention provides a technical solution: a cable installation and fixing device for a wind power generation tower, including a traction disc 1, an upper cylinder 4 connected below the traction disc 1, installation components at both ends of the upper cylinder 4, a guide rod 7 between the two sets of installation components, the guide rod 7 being able to be inserted between the cable reels, and a pulling component below the guide rod 7, the pulling component being able to pull the cable reels on the guide rod 7 to rotate and being able to pull multiple sets of cables in sections. The installation components include:

[0034] The connecting frame has its lower end connected to the guide rod 7 and its upper end connected to the upper cylinder 4. The lower end of the connecting frame is connected to the movable block 801 via the telescopic rod 8.

[0035] The pulley system consists of two sets, both of which are connected to the lower end of the connecting frame via diamond rings 16. The movable block 801 can be fitted into the diamond rings 16, and the pulley system can be symmetrically supported on the inner wall of the wind power tower.

[0036] In operation, the traction disc 1 is connected with the crane arm, the connecting frame is symmetrically arranged on both sides of the traction disc 1, the cable disc is fixed between the connecting frames through the lead-in rod 7, the crane arm is moved upward by pulling the traction disc 1, so as to drive the cable disc to move upward, so as to pull the cable from the bottom to the top of the wind power tower, and the connecting frame is arranged on both sides of the cable disc during the pulling process, so as to play a protective role on the cable, so as to reduce the possibility of friction of the cable in the wind power tower during the pulling process, and the pulley part at the lower end of the connecting frame is symmetrically arranged in the wind power tower during the pulling process, so that the pulley part rotates along the wind power tower during the pulling process, and the support of the pulley part on the wind power tower can reduce the shaking of the cable disc during the pulling process, so that the cable disc is in a relatively vertical upward path, so as to reduce the entanglement and friction of the cable during the pulling process, and the safety of the cable during the pulling process is ensured. The traction assembly in the application is arranged below the lead-in rod 7, and the cable disc generates a dragging force on the lower end of the cable during the upward movement of the cable disc along with the traction disc 1, and the traction assembly pulls the cable disc downward, so that the cable disc always maintains uniform unwinding progress during the upward movement, so as to leave enough freedom between the cable disc and the connecting end of the bottom cable, so as to avoid that the bottom cable is disconnected from the connector due to the too fast upward movement of the cable disc and generates a large dragging force, so as to ensure that the upward movement of the cable is not interrupted by the bottom connection and stops, and the installation efficiency of the cable is improved.

[0037] As a further scheme of the application, the connecting frame comprises the movable frame 5, the lower end of the movable frame 5 is fixedly provided with the inner extension frame 6 and the telescopic rod 8, the inner extension frame 6 is arranged inwardly and the lower end is fixedly connected with one end of the lead-in rod 7, the telescopic rod 8 is composed of a threaded rod and a threaded sleeve, and the lower end of the inner extension frame 6 is fixedly provided with the lower air cylinder 11.

[0038] In operation, the upper air cylinder 4 in the application is provided with the movable frame 5 at both ends, the inner extension frame 6 is inwardly extended and connected with the lead-in rod 7, the telescopic rod 8 is outwardly extended and connected with the pulley part, the inner extension frame 6 and the telescopic rod 8 maintain a certain distance, so as to avoid that the cable is entangled with the pulley part during the upward movement, the threaded sleeve of the telescopic rod 8 is rotationally connected with the movable frame 5 and is threadedly connected with the threaded rod, the distance between the lower end of the telescopic rod 8 and the movable frame 5 can be adjusted by rotating the threaded sleeve, so as to adjust the height of the pulley part, in addition, the upper air cylinder 4 can be elongated to both sides, so as to adjust the distance between the two movable frames 5, so as to adjust the horizontal distance between the two pulley parts, so that the equipment can be used for the installation of wind power tower cables with different diameters.

[0039] As a further scheme of the application, the pulley part comprises the curved disc 9, a plurality of casters 10 are fixedly arranged on the outer side of the curved disc 9, the plurality of casters 10 are arranged in a circumferential array and are equidistantly distributed on the edge of the curved disc 9, a connecting steel pipe 15 is fixedly arranged on the inner side of the curved disc 9, and the upper end of the connecting steel pipe 15 is fixedly connected with the diamond ring 16.

[0040] In operation, the curved disc 9 and the caster 10 form a pulley assembly, the curved disc 9 is inwardly curved so that it can better fit the inner wall of the cylindrical power tower, the curved disc 9 relative to the horizontal disc can increase the contact area between the caster 10 and the power tower, thereby increasing the stability of the caster when sliding on the surface of the power tower, the diamond ring 16 and the movable block 801 are not connected, first, the movable frame 5 and the curved disc 9 have a certain degree of freedom, which reduces the possibility of force damage, and the diamond ring 16 can move upward synchronously with the upward movement of the movable block 801, but is not fixedly connected or slidingly connected, which can reduce the mutual friction between the two, thereby prolonging the service life of the equipment.

[0041] As a further scheme of the present application, the pulling assembly includes two groups of U-shaped frames 12 and two groups of clamping rods 13, the horizontal section of the U-shaped frame 12 is at the upper end, the vertical sections on both sides are at the lower end and are slidingly connected with the horizontal section, and the two groups of vertical sections of the two groups of U-shaped frames 12 are provided with an inner cylinder 19, and the upper end of the U-shaped frame 12 is fixedly connected with the free end of the lower cylinder 11.

[0042] In operation, the two vertical sections of the U-shaped frame 12 are supported by the inner cylinder 19, when the inner cylinder is in a natural state, the two groups of clamping rods 13 are in contact with each other, and when the inner cylinder 19 is elongated, the two groups of clamping rods 13 are away from each other.

[0043] As a further scheme of the present application, the clamping rod 13 is fixedly connected between the two groups of U-shaped frames 12, the inner cylinder 19 can make the two groups of clamping rods 13 close to each other, a plurality of limiting stop pieces 14 are slidingly connected on the clamping rod 13, the limiting stop piece 14 is composed of two groups of limiting rings 18 and a movable plate 17, the limiting ring 18 is welded from a rectangular ring at the upper end and a circular ring at the lower end, the circular ring at the lower end is slidingly connected on the surface of the clamping rod 13, and the movable plate 17 can pass through the rectangular ring at the upper end, the two groups of limiting rings 18 are connected in series through the movable plate 17 to form the limiting stop piece 14, and the two groups of limiting rings 18 are respectively sleeved on the clamping rods 13 on both sides.

[0044] In operation, the U-shaped frame 12 moves up and down under the action of the lower cylinder 11, thereby driving the clamping rod 13 on the U-shaped frame 12 to move up and down, the clamping rod 13 moves through the cables between the two groups of clamping rods 13 to pull the cable reel downward to rotate, thereby making the cable reel pay out downward (when the lower cylinder 11 drives the clamping rod 13 to move downward, the inner cylinder 19 contracts to clamp the cable, and when the lower cylinder 11 drives the clamping rod 13 to move upward, the inner cylinder 19 elongates to make the clamping rods 13 away from each other without clamping the cable), and the limiting stop piece 14 can serve as a partition plate, so that the equipment can simultaneously perform the pulling work of multiple groups of cables, and the cables will not interfere with each other.

[0045] As a further scheme of the present application, the middle position of the traction disc 1 is provided with a cross 2, the lower surface of the traction disc 1 is symmetrically provided with a mounting frame 3, the lower end of the mounting frame 3 is fixedly connected with an upper air cylinder 4, an air pump is fixedly installed in the mounting frame 3, and a connecting hose is arranged between the air pump and the upper air cylinder 4, and the air pump can input gas into the upper air cylinder 4 through the connecting hose.

[0046] In operation, the air pump inputs gas into the upper air cylinder 4 through the connecting hose, and the gas input makes the upper air cylinder 4 elongate towards both ends.

[0047] As a further scheme of the present application, the lead-in rod 7 comprises a left connecting rod 701 and a right connecting rod 702, the left connecting rod 701 is provided with a threaded cavity, the right connecting rod 702 is provided with a threaded column matched with the threaded cavity, and the left connecting rod 701 and the right connecting rod 702 are respectively clamped with the inner extension frame 6.

[0048] In operation, the lead-in rod 7 can be split from both sides, so that the cable disc can be quickly mounted and dismounted with the equipment.

[0049] A cable mounting and fixing method of a wind power tower, and the specific steps of the cable mounting and fixing method are as follows:

[0050] Step one: the left connecting rod 701 and the right connecting rod 702 are led in from both sides of the cable disc, so that the cable disc is lashed in the lead-in rod 7;

[0051] Step two: the two ends of the lead-in rod 7 are respectively fixedly clamped with the inner extension frames 6 on both sides, so that the lead-in rod 7 is between the two groups of connecting frames, and the lower end of the cable is passed between the clamping rods 13;

[0052] Step three: the traction cable of the crane arm is fixedly connected with the cross 2 on the traction disc 1;

[0053] Step four: the equipment is sent into the inside of the power tower, the distance between the connecting frames on both sides is adjusted through the upper air cylinder 4, so that the casters 10 abut against the inner wall of the power tower;

[0054] Step five: the traction disc 1 is pulled up by the crane arm, so that the casters 10 rotate and slide upwards along the inner wall of the power tower;

[0055] Step six: the lower air cylinder 11 continuously stretches up and down during the upward movement, so as to drive the clamping rods 13 to move up and down, and the clamping rods 13 pull the cable downwards.

[0056] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A cable installation and fixing device for a wind power generation tower, comprising a traction plate (1), characterized in that: The traction disc (1) is connected to an upper cylinder (4) below it. Both ends of the upper cylinder (4) are equipped with mounting components. An guide rod (7) is provided between the two sets of mounting components. The guide rod (7) can be inserted between cable reels. A pulling component is provided below the guide rod (7). The pulling component can pull the cable reels on the guide rod (7) to rotate and can perform multi-section cable pulling. The mounting components include: The connecting frame has its lower end connected to the guide rod (7) and its upper end connected to the upper cylinder (4). The lower end of the connecting frame is connected to a movable block (801) via a telescopic rod (8). The pulley assembly is provided in two sets. Both sets of the pulley assembly are connected to the lower end of the connecting frame through a diamond ring (16). The movable block (801) can be fitted into the diamond ring (16). The pulley assembly can be symmetrically supported on the inner wall of the wind power tower.

2. The cable installation and fixing device for a wind power generation tower according to claim 1, characterized in that: The connecting frame includes a movable frame (5), and an inner extension frame (6) and a telescopic rod (8) are fixedly installed at the lower end of the movable frame (5). The inner extension frame (6) is located on the inner side and its lower end is fixedly connected to one end of the guide rod (7). The telescopic rod (8) is composed of a threaded rod and a threaded sleeve. A lower cylinder (11) is fixedly installed at the lower end of the inner extension frame (6).

3. The cable installation and fixing device for a wind power generation tower according to claim 2, characterized in that: The pulley component includes a curved disc (9), on the outer side of which multiple sets of casters (10) are fixedly installed. The multiple sets of casters (10) are arranged in a circumferential array and are equidistantly distributed on the edge of the curved disc (9). A connecting steel pipe (15) is fixedly installed on the inner side of the curved disc (9), and the upper end of the connecting steel pipe (15) is fixedly connected to the diamond ring (16).

4. The cable installation and fixing device for a wind power generation tower according to claim 2, characterized in that: The traction assembly includes two sets of U-shaped frames (12) and two sets of clamping rods (13). The horizontal section of the U-shaped frame (12) is at the upper end, and the vertical sections on both sides are at the lower end and are slidably connected to the horizontal section. An inner cylinder (19) is provided between the two sets of vertical sections of the two sets of U-shaped frames (12). The upper end of the U-shaped frame (12) is fixedly connected to the free end of the lower cylinder (11).

5. The cable installation and fixing device for a wind power generation tower according to claim 4, characterized in that: The clamping rod (13) is fixedly connected between two sets of U-shaped frames (12). The retraction of the inner cylinder (19) can bring the two sets of clamping rods (13) closer to each other. Multiple sets of limiting stops (14) are slidably connected on the clamping rod (13). The limiting stop (14) is composed of two sets of limiting rings (18) and a movable plate (17). The limiting ring (18) is welded together with a rectangular ring at the upper end and a circular ring at the lower end. The circular ring at the lower end can be slidably connected to the surface of the clamping rod (13). The movable plate (17) can pass through the rectangular ring at the upper end. The two sets of limiting rings (18) are connected in series through the movable plate (17) to form the limiting stop (14), and the two sets of limiting rings (18) are respectively sleeved on the clamping rods (13) on both sides.

6. The cable installation and fixing device for a wind power generation tower according to claim 1, characterized in that: A cross (2) is provided in the middle of the traction disc (1). Mounting brackets (3) are symmetrically installed on the lower surface of the traction disc (1). The lower end of the mounting bracket (3) is fixedly connected to the upper cylinder (4). An air pump is fixedly installed inside the mounting bracket (3). A connecting hose is provided between the air pump and the upper cylinder (4). The air pump can input gas into the upper cylinder (4) through the connecting hose.

7. The cable installation and fixing device for a wind power generation tower according to claim 2, characterized in that: The guide rod (7) includes a left connecting rod (701) and a right connecting rod (702). The left connecting rod (701) has a threaded cavity, and the right connecting rod (702) has a threaded post that matches the threaded cavity. The left connecting rod (701) and the right connecting rod (702) are respectively engaged with the inner extension frame (6).

8. A method for installing and fixing cables on a wind power generation tower, applicable to the cable installation and fixing device for a wind power generation tower as described in any one of claims 1-7, characterized in that: The specific steps for installing and securing this cable are as follows: Step 1: The left connecting rod (701) and the right connecting rod (702) are introduced from both sides of the cable reel so that the cable reel is fitted inside the introducing rod (7); Step 2: Fix the two ends of the guide rod (7) to the inner extension frame (6) on both sides respectively, so that the guide rod (7) is between the two sets of connecting frames, and pass the lower end of the cable through the clamping rod (13); Step 3: Securely connect the boom's traction cable to the cross (2) on the traction disc (1); Step 4: Send the equipment into the generator tower and adjust the distance between the connecting frames on both sides by using the upper cylinder (4) so ​​that the casters (10) abut against the inner wall of the generator tower; Step 5: The boom pulls the traction disc (1) upward, causing the caster (10) to rotate and slide upward along the inner wall of the power generation tower; Step 6: During the upward movement, the lower cylinder (11) continuously extends and retracts, thereby driving the clamping rod (13) to move up and down, so that the clamping rod (13) pulls the cable downward.

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