CN108999760B - Wind turbine twist cable saddle device - Google Patents

Abstract

The invention relates to a fan cable twisting saddle device which comprises a central protection cylinder, saddle hangers, supporting rods, split cable clamp blocks, bolt pairs and supporting seats, wherein a plurality of saddle hangers are welded on the central protection cylinder and uniformly distributed along the outer wall of the lower part of the central protection cylinder by 360 degrees, the upper ends of the supporting rods corresponding to the saddle hangers are welded at the lower end of the central protection cylinder and uniformly distributed by 360 degrees, and the lower ends of the supporting rods are welded on the supporting seats; the side surface of the central protection cylinder and the side surface of the supporting seat are fixedly connected with a split type cable clamp splice through bolt pairs respectively corresponding to each supporting rod. The device can avoid the problems of abrasion between twisted cables, overlarge local twisted cable stress and the like.

Description

Wind turbine twist cable saddle device

Technical field

The present invention relates to a wind turbine, in particular to an electrical wiring device for a wind turbine.

Background technique

At present, similar products of electrical wiring devices for wind turbines usually adopt the structure shown in Figure 1. This structure uses an integral cable splint to gather multiple groups of "pin" shaped twisted cables into bundles and lay them in a falling water bend shape. When the wind turbine twisted cable system twists, adjacent groups of "pin" shaped twisted cables will rub against each other. Risk of wear and tear on the cables. At the same time, due to the large overall diameter of the cable bundle, there is a large difference in the length of the inner and outer cables of the integrated water bend. After the water bend structure is twisted, the inner cables will be tight and the outer cables will be loose, causing excessive load on the local cables. , leading to major safety hazards such as damage to power cables.

At present, wind turbine twisted cable wear is the most common cable damage problem in the wind power industry. For the twisted cable saddle installation link, there is an urgent need to design a new wind turbine twisted cable saddle structure based on actual working conditions.

Contents of the invention

The purpose of the present invention is to solve the problem of frequent cable wear caused by twisted cable saddle devices in the wind power industry, and to provide a wind turbine twisted cable saddle device that can avoid wear between twisted cables and excessive stress on local twisted cables. Big questions.

In order to achieve the above object, the technical solution of the present invention is: a wind turbine twisted cable saddle device, including a central protective tube, a saddle hanger, a support rod, a split cable clamp block, a bolt pair, a support seat, and multiple saddle hangers welded On the central protective tube, and evenly distributed at 360° along the outer wall of the lower part of the central protective tube, the upper ends of multiple support rods corresponding to the multiple saddle hangers are welded to the lower end of the central protective tube, and evenly distributed at 360°, with multiple supports The lower end of the rod is welded to the support base; a split cable clamp block is fixedly connected to each support rod through a pair of bolts on the side of the central protective tube and the side of the support base.

The saddle hanger is composed of a circular saddle bucket and a rear support plate. The circular saddle bucket has a cable tie fixing hole for cable binding. The rear support plate is welded to the central protective tube, and the saddle hanger 2 is at an angle to the side wall of the central protective tube.

The eight cable groups are respectively hung on their corresponding saddle hangers through the corresponding bolt pairs on the side of the central protective tube and the side of the support base, so that the twisting and rising movements of the cable groups are completely independent of each other, and there is no mutual interaction between adjacent cable groups. contact, effectively avoiding wear between cables.

The beneficial effects of the present invention are:

1) The twisting motion of each group of twisted cables is completely independent, and there is no mutual contact between adjacent cable groups, which can effectively avoid wear and tear between cables;

2) All parts of the twisted cable that undergo relative motion adopt a completely symmetrical structural design. When the twisted cable system is running, all cables move in the same stroke, which can effectively avoid the problem of excessive local cable load caused by eccentric load in the system.

Description of the drawings

Figure 1 is a schematic diagram of the electrical wiring device of an existing wind turbine;

Figure 2 is a schematic structural diagram of the wind turbine twisted cable saddle device of the present invention;

Figure 3 is a schematic diagram of the saddle hanger structure;

Figure 4 is a schematic diagram of eight saddle hangers welded on the central protective tube;

Figure 5 is a schematic diagram of eight support rods welded on the central protective cylinder;

Figure 6 is a schematic diagram of the split clamping block connected to the bracket using a bolt set;

Figure 7 is a schematic diagram of eight sets of saddle brackets evenly distributed at 360°;

Figure 8 is a schematic diagram of the best state of the wind turbine twisting cable saddle device during its overall working process.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and examples.

As shown in Figures 2 to 8, the wind turbine twisted cable saddle device of the present invention includes a central protective tube 1, a saddle hanger 2, a support rod 3, a split cable clamp block 4, a pair of bolts 5, and a support base 6.

Eight saddle hangers 2 are welded on the central protective tube 1 and are evenly distributed at 360° along the lower outer wall of the central protective tube 1 (see Figures 2, 4, 7). The upper ends of the eight support rods 3 are welded to the lower end of the central protective tube 1 and are evenly distributed at 360° (see Figure 2). The lower ends of the eight support rods 3 are welded to the support base 6. A split cable clamp block 4 is fixedly connected to the side of the central protective tube 1 and the side of the support base 6 corresponding to each support rod 3 through a pair of bolts 5 (see Figure 6).

As shown in Figure 3, the saddle hanger 2 is composed of a circular saddle barrel 2-1 and a rear support plate 2-2. The circular saddle barrel 2-1 is provided with a cable tie fixing hole 2-3 for cable binding. , the rear support plate 2-2 is welded to the central protective tube 1, and the saddle hanger 2 forms an angle A with the side wall of the central protective tube 1.

The eight sets of saddle hangers are evenly distributed at 360°. The twisting and rising movements between the cable sets are completely independent of each other. There is no mutual contact between adjacent cable sets, which can effectively avoid wear and tear between cables.

The best state during the overall working process of the wind turbine twist cable saddle device of the present invention is shown in Figure 8. When all parts of the twisted cable that undergo relative motion adopt a completely symmetrical structural design, all cables move in the same stroke when the twisted cable system is running, which can effectively avoid the problem of excessive local cable load caused by eccentric load in the system.

Claims (2)

1. A wind turbine cable twisting saddle device, including a central protective tube, a saddle hanger, a support rod, a split cable clamp block, a bolt pair, and a support base. It is characterized in that: the central protective tube is a right prism, and each of the A saddle hanger is welded to the side, and the saddle hanger is at an angle with the side wall of the central protective tube. The saddle hanger is evenly distributed at 360° along the lower outer wall of the central protective tube, corresponding to multiple saddle hangers. The upper ends of multiple support rods are welded to the lower end of the central protective tube, and are evenly distributed at 360°. The lower ends of multiple support rods are welded to the support base; the sides of the central protective tube and the side of the support base correspond to each support rod and are fixedly connected through bolt pairs. There is a split cable clamp block, and the eight cable groups are hung on their corresponding saddle hangers through the corresponding bolt pairs on the side of the central protective tube and the side of the support seat, so that the cable groups can twist and rise. The movements are completely independent of each other, and there is no mutual contact between adjacent cable groups, effectively avoiding wear and tear between cables. 2. The wind turbine cable twisting saddle device according to claim 1, characterized in that: the saddle hanger is composed of a circular saddle bucket and a rear support plate, and the circular saddle bucket is provided with a cable tie fixing hole. For cable binding, the rear support plate is welded to the central protective barrel.