Inhaul cable support

Abstract

The utility model belongs to the technical field of engineering construction, and particularly relates to an inhaul cable support which is characterized in that a protective plate is arranged on one side plate face of a base plate used for being connected with a tower drum, the protective plate is a groove-shaped plate with the horizontal section contour being in an arc shape, a groove opening of the protective plate points to be away from the base plate, the groove length direction is vertically arranged, and a liner is laid on the inner wall of a groove cavity of the protective plate. And the outer wall surface of the protective plate is connected with the base plate through a supporting rib plate of which the plate surface is horizontally arranged. According to the stay cable steering device, the stay cable body can be steered while the stay cable body is stably and reliably supported and positioned.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering construction, and particularly relates to a cable bracket. Background Art

[0002] The lower part of the assembled steel-concrete wind turbine tower is a concrete tower. At present, the concrete tower is usually tensioned as a whole by using an external post-tensioning prestressing process to ensure the overall working performance between the concrete segments. The upper and lower ends of the prestressed tendons pass through the top and bottom pre-buried holes of the concrete tower and are anchored there. The concrete tower is usually in the shape of a hollow cylinder with a small top and a large bottom. When the lower anchor hole of the prestressed tendon is located outside the upper anchor hole, the prestressed tendon in the tensioned state may interfere with the tower body.

[0003] Chinese patent CN110259246A discloses an external cable structure system for a steel strand for a wind tower, wherein an isolation and anti-wear device is provided on the cable, and in the installed state, the isolation and anti-wear device is positioned at the corner structure of the tower top. Specifically, as shown in the drawings of the prior art specification, the tower top corner structure is a boss protruding from the tower barrel wall along its radial direction toward the inside of the barrel cavity, and the boss is usually formed integrally with the tower barrel wall, so that the position of the boss in the circumferential direction of the tower barrel cannot be adjusted after the tower barrel is assembled. However, due to problems such as construction errors, it is easy for the cable body and the receiving groove on the boss to be misaligned in the circumferential direction of the tower barrel, resulting in the tower top corner structure being unable to reliably cooperate with the cable body. The isolation and anti-wear device includes an anti-wear sleeve, an isolation sleeve and a heat shrink sleeve. The anti-wear sleeve made of wear-resistant and soft rubber material is sleeved on the outside of the cable. The isolation sleeve is arranged on several points of the outer circular steel strand and fixed by the heat shrink sleeve, which plays a role in positioning and preventing the anti-wear sleeve from falling off. The isolation and anti-wear device isolates the cable from the components arranged at the corner of the tower, thereby avoiding PE wear of the steel strand at the corner of the tower. However, the isolation and anti-wear device is difficult to replace after wear, which increases the difficulty of maintenance operations of the cable. Utility Model Content

[0004] The utility model aims to provide a cable bracket which can accommodate construction errors and ensure reliable steering of the cable.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a cable bracket, a guard plate is provided on one side plate surface of a base plate connected to the tower, the guard plate is a groove-shaped plate with a horizontal cross-sectional profile of an arc, the groove of the guard plate points away from the base plate and is arranged vertically in the groove length direction, a pad is applied on the inner wall of the groove cavity of the guard plate, and the outer wall surface of the guard plate is connected to the base plate by a supporting rib plate arranged horizontally on the plate surface.

[0006] Compared with the prior art, the utility model has the following technical effects: the fixed connection between the base plate and the concrete tower can realize the installation of the cable bracket, and the detachable arrangement of the two makes the installation position of the cable bracket adjustable, thereby ensuring the stable positioning and reliable support of the cable body by the guard plate, while also realizing the convenient disassembly and release of the cable body; the lining inside the guard plate can effectively protect the cable, making the outer sheath of the cable not easily worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The following is a brief description of the contents and symbols in the drawings of this specification:

[0008] Figure 1 is a schematic diagram of the use state of the embodiment;

[0009] Figure 2 is a bottom view schematic diagram of an embodiment;

[0010] Figure 3 It is a three-dimensional schematic diagram of an embodiment. DETAILED DESCRIPTION

[0011] The specific implementation of the utility model is further described in detail below through the description of embodiments in conjunction with the accompanying drawings.

[0012] The cable support comprises a vertically arranged base plate 10, a side plate surface of the base plate 10 is provided with a guard plate 20, the guard plate 20 is a groove plate with a horizontal cross-sectional profile of an arc, and the notch of the guard plate 20 points away from the base plate 10. Figure 1 , 2 As shown, the inner groove cavity of the guard plate 20 is used to accommodate the cable body. The displacement of the cable body accommodated in the guard plate 20 toward the bottom of the inner groove cavity of the guard plate 20 and the groove walls on both sides is restricted, but the cable body can be displaced from the notch of the guard plate 20 to the side away from the base plate 10 and escape from the inner groove cavity of the guard plate 20. In specific implementation, the base plate 10 is fixedly connected to the concrete tower to realize the installation of the cable bracket. At the same time, in order to maintain the separation posture of the cable body and the concrete tower, the base plate 10 and the guard plate 20 are arranged at intervals, and the two are connected by a support rib plate 40 arranged horizontally on the plate surface. The cable body is accommodated in the inner groove cavity of the guard plate to maintain the separation posture of the cable body and the concrete tower, and the cable body can be conveniently released from the cable bracket from the notch of the groove cavity, which is convenient for operators to perform maintenance and replacement operations on the cable.

[0013] Furthermore, a gasket 30 is applied on the inner wall of the groove of the guard plate 20 , and the concave wall of the gasket 30 abuts against the cable body, preventing the cable from shifting toward the substrate 10 while protecting the cable body from damage by the hard guard plate 20 .

[0014] In order to ensure a stable and reliable connection between the base plate 10 and the inner wall of the concrete tower, in this embodiment, the horizontal cross-sectional profile of the base plate 10 is an arc-shaped plate consistent with the inner wall of the concrete tower. In addition, the curvature of the guard plate 20 is greater than the curvature of the base plate 10, and the curvature centerline of the base plate 10 is located on the side where the notch of the guard plate 20 points to. Figure 2 As shown, the base plate 10 and the guard plate 20 are both bent upward, so that when in use, the notch of the guard plate 20 points to the opposite side of the installation position of the base plate 10, which is convenient for the separation and disassembly of the cable body. Under the action of gravity, the cable body is usually arranged vertically, so the center line of curvature of the guard plate 20 should be arranged vertically. On this basis, in order to facilitate the positioning and installation of the base plate 10 and the production of the cable bracket, the center line of curvature of the base plate 10 in this embodiment is parallel to the center line of curvature of the guard plate 20. In this way, when it is implemented, the notch of the guard plate 20 points to the core of the concrete tower, which can effectively limit the displacement of the cable body in the circumferential direction of the concrete tower and radially outward along the concrete tower, and only allow the cable body to move radially toward the side where the core is located along the concrete tower, so that it can ensure the reliability of the separation posture of the cable body and the concrete tower while facilitating the operator to release the cable from the cable bracket. In other embodiments, the base plate 10 may also be a flat plate or a plate-shaped plate; in order to avoid other components on the concrete tower, the center line of curvature of the base plate 10 may also be arranged at an angle with the center line of curvature of the guard plate 20 .

[0015] In this embodiment, the surface where the notch of the guard plate 20 is located is perpendicular to the substrate 10 and the same plane as the center line of curvature of the guard plate 20. Figure 2 As shown, the surface b where the notch of the guard plate 20 is located and the coplanar a where the curvature centerline of the base plate 10 and the guard plate 20 are perpendicular to each other and are arranged perpendicular to the paper surface. In this way, the notches on both sides of the guard plate 20 are arranged flush, and the limiting effect on the cable on both sides in the circumferential direction of the concrete tower is consistent. Further, R is the curvature radius of the guard plate 20. In order to prevent the cable from escaping from the inner groove cavity of the guard plate 20, the interval between the surface where the notch of the guard plate 20 is located and the curvature centerline of the guard plate 20 in this embodiment is less than 0.2R. As shown in the attached figure Figure 2 As shown, when the surface b where the notch of the guard plate 20 is located is below the center line of its curvature, the depth of the groove cavity of the inner groove of the guard plate 20 is relatively small, which will reduce its limiting effect on the cable body; when the surface b where the notch of the guard plate 20 is located is above the center line of its curvature, the depth of the groove cavity of the inner groove of the guard plate 20 is relatively large, and the notch is in a closed shape. Although the limiting effect on the cable body is enhanced, the difficulty of releasing the cable from the guard plate 20 is increased, affecting the convenience of cable maintenance operations. Therefore, in the preferred embodiment, the surface b where the notch of the guard plate 20 is located is arranged with a small interval from the center line of the curvature of the guard plate 20. In this embodiment, the surface b where the notch of the guard plate 20 is located is arranged flush with the center line of the curvature of the guard plate 20, so that the cross-section of the inner groove cavity of the guard plate 20 is semicircular, and the notch size is relatively large, which is convenient for the release of the cable. In this case, as shown in the attached Figure 2 As shown, the base plate 10 and the guard plate 20 are symmetrically arranged with the common plane a of the curvature center lines of the base plate 10 and the guard plate 20 as the symmetry plane, so that the left and right and the top and bottom of the cable bracket are symmetrically arranged respectively, and there is no need to distinguish the direction when using it, which is convenient for construction.

[0016] The pad 30 is in direct contact with the cable body. In the preferred embodiment, the pad 30 is made of non-metallic material with good wear resistance. After long-term use, the material of the pad 30 ages and needs to be replaced. Therefore, the pad 30 and the cable support body form a detachable fit. In this embodiment, the pad body of the pad 30 protrudes out of the groove cavity of the guard plate 20 and forms a detachable connection with the support rib plate 40. Figure 2 As shown, the plate body of the supporting rib plate 40 is flush with the notch of the guard plate 20, and a connecting seat 51 is fixedly arranged at the plate edge where the supporting rib plate 40 is flush with the notch of the guard plate 20, and a screw 52 passes through the hole on the gasket 30 and is threadedly connected with the connecting seat 51 to achieve fixed installation of the gasket 30. In other embodiments, the gasket 30 can also be connected to the supporting rib plate 40 by other mounting elements. It should be noted that the connecting element fixedly connected to the supporting rib plate 40 should avoid the notch of the guard plate 20 to avoid the connecting element blocking the notch of the guard plate 20, so that the notch of the inner groove cavity for accommodating the cable body is reduced, thereby interfering with the cable body, causing the outer sheath of the cable body to wear.

[0017] In order to avoid engraving the cable body on the upper edge or lower edge of the cable bracket, the present embodiment is as shown in the attached Figure 1 As shown in the figure, the upper and lower edges of the guard plate 20 are folded outward to form a flared portion 21, which can guide the cable body in transition, so that the cable body and the cable bracket can cooperate more smoothly. In order to further protect the cable body and reduce the risk of wear on the outer sheath of the cable, the pad 30 extends to the outside of the flared portion 21. In this embodiment, in order to ensure the supporting effect of the cable bracket, the guard plate 20 is supported by metal materials. At the same time, in order to prevent the metal guard plate 20 from damaging the outer sheath of the cable, as shown in the attached figure, Figure 1 As shown, the pad area of ​​the liner 30 is larger than the plate area of ​​the guard plate 20, and the liner 30 can isolate the cable body from the guard plate 20 to avoid direct contact between the two.

[0018] As attached Figure 2 As shown, in order to reliably connect the base plate 10 and the guard plate 20, the support rib plate 40 in this embodiment is formed by cutting the edge of a fan-shaped plate, and the outer plate edge of the support rib plate 40 matches the curvature of the base plate 10, and the inner plate edge matches the curvature of the guard plate 20.

[0019] In this embodiment, nuts or screw sleeves are pre-embedded on the wall of the concrete tower, holes for bolts to pass through are opened on the base plate 10, and the base plate 10 is threadedly connected to the tower. Figure 1 , 3As shown, the base plate 10 is a frame-type plate, and the outer plate edge of the supporting rib plate 40 is connected to the horizontal plate frame 10a. A horizontal waist-shaped hole 11 is provided on the horizontal plate frame 10a of the base plate 10, so that the installation position of the cable bracket in the circumferential direction of the tower can be adjusted without adding nuts or screw sleeves on the tower segment, so that the center of curvature of the guard plate 20 matches the actual extension path of the cable, so that the cable bracket can be conveniently adjusted in the horizontal direction during installation. Further, in order to facilitate the installation of the base plate 10, the horizontal waist-shaped hole 11 in this embodiment is located on the outside of the supporting rib plate 40, that is, the horizontal waist-shaped hole 11 is exposed and arranged on the outside of the supporting rib plate 40. In other embodiments, a vertical waist-shaped hole may also be provided on the vertical plate frame 10b of the base plate 10, so that the cable bracket can be conveniently adjusted in the vertical direction during installation.

Claims

1. A cable bracket, characterized in that: A guard plate (20) is provided on one side of a plate surface of a base plate (10) for connection with a tower, the guard plate (20) is a groove-shaped plate with a horizontal cross-sectional profile in the shape of an arc, the groove opening of the guard plate (20) points away from the base plate (10) and is arranged vertically in the groove length direction, a liner (30) is provided on the inner wall of the groove cavity of the guard plate (20), and the outer wall surface of the guard plate (20) is connected to the base plate (10) by a support rib plate (40) arranged horizontally on the plate surface.

2. The cable bracket according to claim 1, characterized in that: The base plate (10) is an arc-shaped plate with a curvature radius greater than that of the guard plate (20); the curvature center line of the base plate (10) is located on the side to which the notch of the guard plate (20) points; and the curvature center lines of the base plate (10) and the guard plate (20) are arranged in parallel.

3. The cable bracket according to claim 2, characterized in that: The surface where the notch of the guard plate (20) is located is perpendicular to the substrate (10) and is coplanar with the center line of curvature of the guard plate (20), and the interval between the surface where the notch of the guard plate (20) is located and the center line of curvature of the guard plate (20) is less than 0.2R, where R is the curvature radius of the guard plate (20).

4. The cable bracket according to claim 3, characterized in that: The base plate (10) and the guard plate (20) are arranged symmetrically with the common plane of the curvature center lines of the base plate (10) and the guard plate (20) as the symmetry plane; the surface where the notch of the guard plate (20) is located is arranged flush with the curvature center line of the guard plate (20).

5. The cable bracket according to claim 1, characterized in that: The pad body of the pad (30) protrudes out of the groove cavity of the guard plate (20) and forms a detachable connection with the supporting rib plate (40).

6. The cable bracket according to claim 5, characterized in that: The plate body of the supporting rib plate (40) is flush with the notch of the guard plate (20), and a connecting seat (51) is fixedly provided at the plate edge where the supporting rib plate (40) is flush with the notch of the guard plate (20), and the screw (52) passes through the hole on the gasket (30) and is threadedly connected to the connecting seat (51).

7. The cable bracket according to claim 1, characterized in that: The supporting rib plate (40) is formed by cutting the edges of a fan-shaped plate, and the outer plate edge of the supporting rib plate (40) matches the curvature of the base plate (10), and the inner plate edge matches the curvature of the guard plate (20).

8. The cable bracket according to claim 1, characterized in that: The base plate (10) is a frame-type plate, a horizontal plate frame (10a) of the base plate (10) is provided with a horizontal waist-shaped hole (11) or a vertical plate frame (10b) of the base plate (10) is provided with a vertical waist-shaped hole, and the outer plate edge of the supporting rib plate (40) is connected to the horizontal plate frame (10a).

9. The cable bracket according to claim 1, characterized in that: The upper plate edge or the lower plate edge of the guard plate (20) is folded outward to form a flared portion (21); and the pad body of the pad (30) extends to the outside of the flared portion (21).

Images