Fixing device for power cable of tower drum of wind turbine generator

Abstract

The utility model relates to a fixing device for a power cable of a tower drum of a wind turbine generator, the fixing device comprises a main body structure, a fixing assembly and a supporting seat, the fixing assembly comprises two clamping pieces, the two clamping pieces are connected to the main body structure through a transmission mechanism, and the transmission mechanism is used for driving the two clamping pieces to get close to each other or get away from each other in the first direction; the two clamping pieces are used for clamping the power cable, the supporting base is connected to the main body structure through the adjusting mechanism, the adjusting mechanism is used for driving the main body structure to move relative to the supporting base in the second direction, and the side, away from the main body structure, of the supporting base is connected to the inner side wall of the tower drum. According to the technical scheme, the position, relative to the supporting base, of the fixing assembly used for clamping the power cable can be adjusted, so that the situation that the cable or the connecting end of the cable is damaged due to the fact that the cable is excessively stretched is avoided, and collision between the power cable and the tower drum and collision between the power cables can also be effectively prevented.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wind turbine tower equipment, and in particular to a fixing device for a wind turbine tower power cable. Background Art

[0002] Wind turbine tower power cable is used to transmit the electricity generated by wind turbine to the bottom of the tower or outside. Therefore, a section of the cable from the nacelle to the tower hangs down from the center line of the tower. When the external wind is strong, the wind will cause the tower and the nacelle to jolt slightly, causing the cable to sway and easily collide with the tower or rotate continuously, damaging the cable.

[0003] In the related art, the fixing device of the power cable cannot be adjusted once it is fixed. Usually, the fixing device of the power cable is connected to the inner wall of the tower, and the power cable needs to be pulled from the center of the tower to the inner wall of the tower. However, the existing fixing device generally cannot adjust the position relative to the inner wall of the tower. If the tensile force on the cable is too large, it is easy to cause damage to the cable line or damage the connecting end of the cable. Utility Model Content

[0004] The purpose of the present disclosure is to provide a fixing device for a power cable of a wind turbine tower, which can adjust the position of a fixing component for clamping a power cable relative to a support seat to avoid excessive stretching of the power cable and damage to the power cable or the connecting end of the power cable, so as to at least partially solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a fixing device for a wind turbine tower power cable, comprising:

[0006] Main structure;

[0007] A fixing assembly, comprising two clamping members, the two clamping members are connected to the main structure through a transmission mechanism, the transmission mechanism is used to drive the two clamping members to move closer to or away from each other along a first direction, and the two clamping members are used to clamp the power cable;

[0008] The support seat is connected to the main structure through an adjustment mechanism, and the adjustment mechanism is used to drive the main structure to move along the second direction relative to the support seat. The side of the support seat away from the main structure is connected to the inner wall of the tower.

[0009] Optionally, the adjusting mechanism includes a first screw rod, a first slider and a second slider. The two ends of the first screw rod are respectively connected to the side wall surfaces on the opposite sides of the main body structure. The first screw rod includes a first external thread and a second external thread with opposite thread directions. The first slider is threadedly connected to the first external thread, and the second slider is threadedly connected to the second external thread. The support seat includes a chute, a slide bar arranged in the chute, and a third slider and a fourth slider slidably connected to the slide bar. The third slider and the fourth slider are arranged at intervals. The first slider is connected to the fourth slider through a first connecting rod, and the second slider is connected to the third slider through a second connecting rod, so that when the first screw rod is rotated, the first slider and the second slider can approach or separate from each other, and the third slider and the fourth slider can approach or separate from each other.

[0010] Optionally, the number of the support seats is two, and the two support seats are arranged at intervals.

[0011] Optionally, the main body structure includes a mounting groove. The transmission mechanism includes a second screw rod rotatably arranged in the mounting groove around its own central axis and a sliding component threadedly connected to the second screw rod. The fixing component is arranged on the sliding component.

[0012] Optionally, the sliding component includes two sliding seats. The second screw rod includes a third external thread and a fourth external thread with opposite thread directions. One of the sliding seats is threadedly connected to the third external thread, and the other sliding seat is threadedly connected to the fourth external thread. The two clamping members are respectively arranged on the two sliding seats.

[0013] Optionally, a limiting portion is arranged in the mounting groove, and the limiting portion is located between the two sliding seats.

[0014] Optionally, the main body structure further includes a guiding portion, and the sliding seat is movably connected to the guiding portion.

[0015] Optionally, the number of the guiding portions is two, and the two guiding portions are located on the opposite sides of the second screw rod. The sliding seat is movably connected to the two guiding portions.

[0016] Optionally, the sliding seat further includes a mounting portion, and the fixing component further includes a buffer member. The buffer member is arranged in the mounting portion, and the clamping member is connected to the buffer member.

[0017] Optionally, the buffer member includes a support rod arranged in the mounting portion and an elastic member sleeved on the support rod. The clamping member is movably connected to the support rod. One end of the elastic member is connected to the clamping member, and the other end is connected to the side wall surface of the mounting portion.

[0018] Through the above technical solution, a transmission mechanism is provided to control the two clamping members to approach or separate from each other in the first direction so as to be able to clamp and fix the power cable. In addition, an adjustment mechanism is provided to adjust the positions of the two clamping members relative to the support base in the second direction, so that the fixing assembly can be more flexibly assembled with the power cable, realizing the fixation of the power cable and avoiding damaging the power cable or the connecting end of the power cable due to excessive stretching of the power cable. In addition, the fixing device provided by the present disclosure has stronger operability, is more flexible in fixing the power cable, and can also effectively prevent collisions between the power cable and the tower barrel and between power cables.

[0019] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0021] Figure 1 is a schematic diagram of the overall structure of the fixing device provided in the exemplary embodiment of the present disclosure;

[0022] Figure 2 is a schematic diagram of the structure of the adjustment mechanism provided in the exemplary embodiment of the present disclosure;

[0023] Figure 3 is a schematic diagram of the structure of the buffer member provided in the exemplary embodiment of the present disclosure.

[0024] Description of the Reference Numerals in the Drawings

[0025] 1, main body structure; 110, installation groove; 120, limiting portion; 130, guiding portion;

[0026] 2, support base; 210, installation portion; 220, fourth slider; 230, third slider; 240, chute; 250, sliding rod;

[0027] 3, transmission mechanism; 310, sliding seat; 311, installation portion; 320, second screw;

[0028] 4, fixing assembly; 410, clamping member; 420, buffer member; 421, support rod; 422, elastic member;

[0029] 5, adjustment mechanism; 510, first screw; 520, first slider; 530, second slider; 540, second connecting rod; 550, first connecting rod. Specific Implementation

[0030] The following will describe in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0031] In the present disclosure, unless otherwise stated, "inner" and "outer" refer to the inside and outside of the contour of the corresponding component. In addition, the terms "first" and "second" used in the present disclosure are used to distinguish one element from another element, and do not have sequentiality and importance. In addition, when the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0032] According to Figures 1 to 3 As shown, an embodiment of the present disclosure provides a fixing device for a power cable of a wind turbine tower. The fixing device includes a main structure 1, a fixing component 4, and a support base 2. The fixing component 4 includes two clamping members 410. The two clamping members 410 are connected to the main structure 1 through a transmission mechanism 3. The transmission mechanism 3 is used to drive the two clamping members 410 to approach or move away from each other in the first direction X. The two clamping members 410 are used to clamp the power cable. The support base 2 is connected to the main structure 1 through an adjustment mechanism 5. The adjustment mechanism 5 is used to drive the main structure 1 to move relative to the support base 2 in the second direction Y. One side of the support base 2 facing away from the main structure 1 is connected to the inner side wall of the tower.

[0033] Through the above technical solution, the transmission mechanism 3 is provided to control the two clamping members 410 to approach or move away from each other in the first direction X so as to be able to clamp and fix the power cable. In addition, the adjustment mechanism 5 is provided to adjust the position of the two clamping members 410 relative to the support base 2 in the second direction Y, so that the fixing component 4 can be more flexibly assembled with the power cable, realizing the fixation of the power cable, and avoiding damaging the power cable or the connection end of the power cable due to excessive stretching of the power cable. In addition, the fixing device provided by the present disclosure has stronger operability, is more flexible in fixing the power cable, and can also effectively prevent collisions between the power cable and the tower, and between the power cables.

[0034] Specifically, when the fixing device is arranged on the tower, the second direction Y can be the approximate radial direction of the tower. Thus, by adjusting the position of the main body and the fixing component thereon relative to the support base in this second direction, it is possible to avoid damaging the power cable or the connection end of the power cable due to excessive stretching of the power cable. In addition, the first direction X can be perpendicular to the second direction Y.

[0035] It should be noted that when the two clamping members 410 act on the power cable together, the clamping member 410 can be configured as a C-shaped member. The two C-shaped members approach each other to jointly form a circular hole for accommodating the power cable, and the power cable is radially limited within the circular hole.

[0036] In some implementable ways, for example, with reference to Figure 2 As shown, the adjusting mechanism 5 may include a first screw rod 510, a first slider 520, and a second slider 530. The two ends of the first screw rod 510 are respectively connected to the side wall surfaces on the opposite sides of the main body structure 1. The first screw rod 510 includes a first external thread and a second external thread with opposite thread directions. The first slider 520 is threadedly connected to the first external thread, and the second slider 530 is threadedly connected to the second external thread. The support base 2 may include a chute 240, a slide bar 250 disposed in the chute 240, and a third slider 230 and a fourth slider 220 that are slidably connected to the slide bar 250. The third slider 230 and the fourth slider 220 are arranged at intervals. The first slider 520 is connected to the fourth slider 220 through a first connecting rod 550, and the second slider 530 is connected to the third slider 230 through a second connecting rod 540. So that when the first screw rod 510 is rotated, the first slider 520 and the second slider 530 can approach or move away from each other, and the third slider 230 and the fourth slider 220 can also approach or move away from each other. When it is necessary to adjust the height of the main body structure 1, rotate the first screw rod 510. The first slider 520 located on the first external thread and the second slider 530 located on the second external thread approach each other. The third slider 230 and the fourth slider 220 approach each other under the drive of the first connecting rod 550 and the second connecting rod 540, so that the included angle between the cross-arranged first connecting rod 550 and the second connecting rod 540 in the second direction Y continuously decreases. The main body structure 1 moves relative to the support base 2 in the second direction Y under the action of the forces of the first connecting rod 550 and the second connecting rod 540. Through the above-mentioned ball screw drive method, the transmission accuracy is higher and the bearing capacity is stronger. Among them, the cross-arranged first connecting rod 550 and the second connecting rod 540 can be hinged to improve the stability of the adjusting mechanism 5.

[0037] Optionally, for the convenience of controlling the rotation of the first screw rod 510, for example, the adjusting mechanism 5 may further include a motor. The output end of the motor is connected to the first screw rod 510 for driving the first screw rod 510 to rotate. The adjusting mechanism 5 may also include a rotating handle. The rotating handle is connected to the first screw rod 510 and is disposed outside the main body structure 1, so that an operator can adjust the height of the main body structure 1 by operating the rotating handle. The present disclosure is not limited to this, and those skilled in the art can make adaptive adjustments according to actual needs.

[0038] The structural limitation of the adjusting mechanism 5 in the present disclosure is only for the present disclosure. The structure of the adjusting mechanism 5 can be adaptively adjusted according to actual needs. For example, the adjusting mechanism 5 can directly adopt an electric push rod or a cylinder. The present disclosure does not make specific limitations on this, as long as the function of adjusting the height of the main body structure 1 can be achieved.

[0039] In some implementable ways, for example, referring to Figure 1 As shown, the main body structure 1 may include a mounting groove 110. The transmission mechanism 3 may include a second screw rod 320 rotatably disposed in the mounting groove 110 about its own central axis and a sliding assembly threadedly connected to the second screw rod 320. The fixing assembly 4 is disposed on the sliding assembly. When it is necessary to adjust the position of the fixing assembly 4 in the first direction X, only the second screw rod 320 needs to be rotated to drive the sliding assembly to move, which is more convenient, has higher transmission accuracy, and is more stable.

[0040] Among them, the sliding assembly may include two sliding seats 310. The second screw rod 320 may include a third external thread and a fourth external thread with opposite thread directions. One of the sliding seats 310 is threadedly connected to the third external thread, and the other sliding seat 310 is threadedly connected to the fourth external thread. Two clamping members 410 are respectively disposed on the two sliding seats 310. So that when the second screw rod 320 is rotated, the two clamping members 410 can approach or move away from each other under the drive of the two sliding seats 310.

[0041] Optionally, a limiting portion 120 may be provided in the mounting groove 110. The limiting portion 120 is located between the two sliding seats 310 to prevent the two sliding seats 310 from colliding when approaching each other, so as to enhance safety.

[0042] The structural limitation of the transmission mechanism in the present disclosure is only for the present disclosure. The structure of the transmission mechanism 3 can be adaptively adjusted according to actual needs. For example, the transmission mechanism 3 can also be configured as a worm and worm gear, and the present disclosure is not limited thereto.

[0043] Optionally, in order to facilitate the control of the rotation of the second screw rod 320, for example, the transmission mechanism 3 may further include a motor. The output end of the motor is connected to the second screw rod 320 for driving the second screw rod 320 to rotate. Or the transmission mechanism 3 may further include a rotating handle. The rotating handle is connected to the second screw rod 320 and disposed outside the main body structure 1 to control the second screw rod 320 by manually or using a rotating tool to operate the rotating handle.

[0044] In some implementable ways, for example, referring to Figure 1 As shown, the main body structure 1 may further include a guiding portion 130. The sliding seat 310 is movably connected to the guiding portion 130 to enhance the stability of the sliding seat 310 during movement and prevent the sliding seat 310 from shifting during movement.

[0045] Optionally, the number of the guiding portions 130 may be two. The two guiding portions 130 are located on opposite sides of the second screw 320, and the sliding seat 310 is movably connected to the two guiding portions 130. By providing two guiding portions 130, the stability of the movement of the sliding seat 310 can be further improved, making the movement of the sliding seat 310 smoother.

[0046] Among them, the guiding portion 130 may include a guide rail, and a sliding groove slidably engaged with the guide rail may be provided on the sliding seat 310. Alternatively, the guiding portion 130 may also include a guide rod, and a through hole slidably sleeved on the guide rod may be provided on the sliding seat 310. The present disclosure is not limited thereto.

[0047] In some implementable ways, for example, with reference to Figure 1 and Figure 3 as shown, the sliding seat 310 may further include a mounting portion 311, and the fixing assembly 4 may further include a buffer member 420. The buffer member 420 is disposed in the mounting portion 311, and the clamping member 410 is connected to the buffer member 420 so that the clamping member 410 can move along the first direction X through the buffer member 420, so as to play a buffering role when the power cable shakes, thereby improving the safety and reliability of the clamping member 410.

[0048] In some implementable ways, for example, with reference to Figure 3 as shown, the buffer member 420 may include a support rod 421 disposed in the mounting portion 210 and an elastic member 422 sleeved on the support rod 421. The clamping member 410 is movably connected to the support rod 421. One end of the elastic member 422 is connected to the clamping member 410, and the other end is connected to the side wall surface of the mounting portion 210. By providing the support rod 421 and the elastic member 422, the support rod 421 can play a guiding and protective role for the elastic member 422 when the elastic member 422 deforms, so as to enhance the reliability and stability of use. Among them, the elastic member 422 may be configured as a spring.

[0049] It can be understood that the buffer member 420 may also be only configured as a spring or a damper. The present disclosure does not make specific limitations in this regard, and those skilled in the art can make adaptive adjustments according to the actual needs.

[0050] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure. In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0051] In addition, any combination can be made among various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A fixing device for a wind turbine tower power cable, characterized in that: include: Main structure; A fixing assembly, comprising two clamping members, the two clamping members are connected to the main structure through a transmission mechanism, the transmission mechanism is used to drive the two clamping members to move closer to or away from each other along a first direction, and the two clamping members are used to clamp the power cable; The support seat is connected to the main structure through an adjustment mechanism, and the adjustment mechanism is used to drive the main structure to move along the second direction relative to the support seat. The side of the support seat away from the main structure is connected to the inner wall of the tower.

2. The fixing device for wind turbine tower power cable according to claim 1, characterized in that: The adjusting mechanism comprises a first screw, a first slider and a second slider, the two ends of the first screw are respectively connected to the side wall surfaces on the opposite sides of the main structure, the first screw comprises a first external thread and a second external thread with opposite thread rotation directions, the first slider is threadedly connected to the first external thread, and the second slider is threadedly connected to the second external thread; The support seat includes a slide groove, a slide rod arranged in the slide groove, and a third slider and a fourth slider slidably connected to the slide rod, the third slider and the fourth slider are arranged at intervals, the first slider is connected to the fourth slider through a first connecting rod, and the second slider is connected to the third slider through a second connecting rod, so that by rotating the first screw rod, the first slider and the second slider can approach or move away from each other, and the third slider and the fourth slider can approach or move away from each other.

3. The fixing device for wind turbine tower power cable according to claim 1, characterized in that: The number of the support seats is two, and the two support seats are arranged at intervals.

4. The fixing device for wind turbine tower power cable according to claim 1, characterized in that: The main structure comprises a mounting groove, the transmission mechanism comprises a second screw rod rotatably arranged in the mounting groove around its own central axis and a sliding component threadedly connected to the second screw rod, and the fixing component is arranged on the sliding component.

5. The fixing device for wind turbine tower power cable according to claim 4, characterized in that: The sliding assembly includes two sliding seats, the second screw includes a third external thread and a fourth external thread with opposite thread rotation directions, one of the sliding seats is threadedly connected to the third external thread, and the other sliding seat is threadedly connected to the fourth external thread, and the two clamping members are respectively arranged on the two sliding seats.

6. The fixing device for wind turbine tower power cable according to claim 5, characterized in that: A limiting portion is arranged in the installation groove, and the limiting portion is located between the two sliding seats.

7. The fixing device for wind turbine tower power cable according to claim 5, characterized in that: The main structure also includes a guide portion, and the sliding seat is movably connected to the guide portion.

8. The fixing device for wind turbine tower power cable according to claim 7, characterized in that: The number of the guide parts is two, the two guide parts are located on two opposite sides of the second screw rod, and the sliding seat is movably connected to the two guide parts.

9. The fixing device for wind turbine tower power cable according to claim 5, characterized in that: The sliding seat further includes a mounting portion, the fixing assembly further includes a buffer member, the buffer member is arranged in the mounting portion, and the clamping member is connected to the buffer member.

10. The fixing device for wind turbine tower power cable according to claim 9, characterized in that: The buffer member includes a support rod arranged in the mounting portion and an elastic member sleeved on the support rod, the clamping member is movably connected to the support rod, one end of the elastic member is connected to the clamping member, and the other end is connected to the side wall surface of the mounting portion.

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