Sheath type spacer ring for wind power cable

Abstract

The utility model discloses a sheath type spacer ring for a wind power cable. The sheath type spacer ring comprises a group of sheaths, 2N plum blossom petals, two fixed steel rings and two connecting plates, n is greater than or equal to 4; the 2N plum blossom petals are spliced to form two plum blossom plates, and the two plum blossom plates are arranged in parallel up and down; the center of the plum blossom plate is of a circular structure formed by splicing arcs of the inner surfaces of N plum blossom petals, and the upper surface and the lower surface of the plum blossom plate are each provided with a circle of groove used for installing and fixing the steel ring and the connecting plate; a plurality of connecting rod through holes are formed in the groove; the tops of a plurality of connecting rods penetrate through the connecting rod through holes in the upper plum-blossom-shaped disc in a one-to-one correspondence manner, and the bottoms of the connecting rods penetrate through the connecting rod through holes in the lower plum-blossom-shaped disc in a one-to-one correspondence manner and then are locked and fixed through nuts; the sheath is formed by combining a left semicircular cylinder and a right semicircular cylinder. The requirements for molds and equipment are low, the cost is reduced, it can be guaranteed that the plum disc is high in rigidity and convenient to install, and meanwhile the requirement that one spacer ring structure can be used in various specifications of cable environments is met.

Description

Technical Field

[0001] The utility model relates to a twisted cable protection device, in particular to a sheath type spacer ring for a wind power cable. Background Art

[0002] At present, the cable fixing structure of similar products of twist cable protection device is to divide the plum blossom petals into several pieces, and then splice the plum blossom petals into a whole, and the plum blossom petals are connected by two buckles. After the structure is assembled, the plum blossom disk is not rigid enough and the plum blossom petals are easily damaged. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model patent provides a sheath-type spacer ring for wind power cables, which can not only reduce the cost by requiring low molds and equipment, but also ensure the strong rigidity of the plum blossom disk and easy installation. At the same time, it also satisfies the requirement that a spacer ring structure can be used in various cable environments.

[0004] The technical solution of the utility model is: a sheath type spacer ring for wind power cable, comprising a set of sheaths, 2N plum petals, 2 fixed steel rings and 2 connecting plates; N is greater than or equal to 4;

[0005] The inner surface of each plum blossom petal is arc-shaped, and the outer surface is concave inward to form a V-shaped cable installation groove; 2N plum blossom petals are spliced ​​to form two plum blossom disks, and the two plum blossom disks are placed parallel to each other, one above and one below;

[0006] The center of the plum blossom disk is a circular structure formed by splicing the arcs of the inner surfaces of N plum blossom petals. The upper and lower surfaces of the plum blossom disk are both provided with a circle of grooves for installing and fixing the steel ring and the connecting plate; a plurality of connecting rod through holes are opened in the grooves;

[0007] The fixed steel ring is an arc structure with a central angle greater than 180 degrees, and the connecting plate is an arc structure with a central angle less than 180 degrees. After a fixed steel ring and a connecting plate are spliced ​​together, they can be embedded in the groove on the upper surface of the upper plum blossom disk, and after another fixed steel ring and another connecting plate are spliced ​​together, they can be embedded in the groove on the lower surface of the lower plum blossom disk; and through holes are also opened on the fixed steel ring and the connecting plate at positions corresponding to the connecting rod through holes;

[0008] The tops of the multiple connecting rods are passed through the connecting rod through holes on the upper plum blossom disk and the corresponding through holes on the fixed steel ring or the connecting plate, and the bottoms are passed through the connecting rod through holes on the lower plum blossom disk and the corresponding through holes on the fixed steel ring or the connecting plate, and then are locked and fixed by nuts;

[0009] The left and right sides of each plum petal are concave with semicircular grooves along the horizontal axis direction. After adjacent plum petals are spliced, the two connected semicircular grooves in the adjacent plum petals are spliced ​​into a circular through hole as a bolt through hole;

[0010] The sleeve is composed of two left and right semicircular cylinders. Waist-shaped holes are opened at the top and bottom of the sleeve corresponding to the bolt through holes. After multiple bolts pass through the bolt through holes and the corresponding waist-shaped holes one by one, they are locked and fixed by nuts.

[0011] Furthermore, V-shaped bushings of different specifications are included, and the V-shaped bushings can be correspondingly embedded and fixed in the V-shaped cable installation groove, so as to limit and fix cables of different specifications.

[0012] Furthermore, it comprises a rubber ring, which is formed by splicing two symmetrical left and right semicircular rings and is fixed to the inner surface of the circular structure at the center of the plum blossom disk.

[0013] Furthermore, a concave hook groove is provided on one side of the plum petals, and a protruding hook is provided on the other side; adjacent plum petals are connected and fixed by matching the hook and the hook groove.

[0014] Furthermore, the inner surface of the sheath body is provided with multiple circles of reinforcing ribs from top to bottom.

[0015] Furthermore, a plurality of ventilation holes are provided on the sheath body between adjacent reinforcing ribs.

[0016] The beneficial effects of the utility model are:

[0017] 1. This spacer ring can effectively solve the problem of dividing a large spacer ring into small pieces for manufacturing.

[0018] 2. This spacer ring can effectively solve the rigidity and strength problems after small pieces of plum petals are assembled.

[0019] 3. This spacer ring can be used in a variety of occasions by using a set of molds through the bushing.

[0020] 4. This anti-twist spacer adopts assembly method, which is convenient and flexible to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the sheath type spacer ring structure for wind power cables;

[0022] Figure 2 This is a cross-sectional view of a sheathed spacer ring for wind power cables;

[0023] Figure 3 It is a side view of a sheathed spacer ring for wind power cables;

[0024] Figure 4 It is a top view of a sheathed spacer ring for wind power cables;

[0025] Figure 5 This is a cross-sectional view of a sheathed spacer ring for wind power cables;

[0026] Figure 6It is a schematic diagram of the bushing structure;

[0027] Figure 7 This is a schematic diagram of the structure of plum petals;

[0028] Figure 8 This is a schematic diagram of the structure of plum petals;

[0029] Fig. 9 It is a schematic diagram of the fixed steel ring structure;

[0030] Fig.10 Schematic diagram of the connecting plate structure.

[0031] In the figure: 1 is a sheath, 2 is a plum petal, 3 is a bushing, 4 is a fixed steel ring, 5 is a connecting plate, 6 is a connecting rod, 7 is a rubber ring, 8 is a hook, 9 is a bolt, 10 is a connecting rod through hole, 11 is a reinforcing rib, 12 is a hook groove, 13 is a vent hole, and 14 is a groove. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings.

[0033] like Figure 1-5 As shown, a sheath type spacer ring for wind power cable includes a set of sheaths 1, 24 as shown in Figure 7 , 8 The plum petals shown are 2 and 2 as Fig. 9 The fixed steel ring 4 and 2 as shown Fig.10 The connecting plate 5 shown in the figure, the different specifications of the connecting plate 5, Figure 6 The V-shaped bushing 3 shown. Preferably, a concave hook groove 12 is provided on one side of the plum petal 2, and a protruding hook 8 is provided on the other side. Adjacent plum petals 2 are connected and fixed by matching the hook 8 and the hook groove 12.

[0034] The inner surface of each plum blossom petal 2 is arc-shaped, and the outer surface is concave toward the inside to form a V-shaped cable installation groove. After the 24 plum blossom petals 2 are spliced ​​together, two plum blossom plates are formed, and the two plum blossom plates are placed in parallel one above the other.

[0035] The center of the plum blossom disk is a circular structure formed by arc-shaped splicing of the inner surfaces of 12 plum blossom petals 2. The upper and lower surfaces of the plum blossom disk are both provided with a circle of grooves 14 for mounting and fixing the steel ring 4 and the connecting plate 5. A plurality of connecting rod through holes 10 are provided in the grooves 14.

[0036] The fixed steel ring 4 is an arc structure with a central angle greater than 180 degrees, and the connecting plate 5 is an arc structure with a central angle less than 180 degrees. After a fixed steel ring 4 and a connecting plate 5 are spliced, they can be embedded in the groove 14 on the upper surface of the upper plum blossom disk, and after another fixed steel ring 4 and another connecting plate 5 are spliced, they can be embedded in the groove 14 on the lower surface of the lower plum blossom disk. Through holes are also opened on the fixed steel ring 4 and the connecting plate 5 at positions corresponding to the connecting rod through holes 10.

[0037] The tops of the multiple connecting rods 6 pass through the connecting rod through holes 10 on the upper plum blossom disk and the corresponding through holes on the fixed steel ring 4 or the connecting plate 5, and the bottoms pass through the connecting rod through holes 10 on the lower plum blossom disk and the corresponding through holes on the fixed steel ring 4 or the connecting plate 5, and are then locked and fixed by nuts.

[0038] The left and right sides of each plum petal 2 are sunken with semicircular grooves along the horizontal axis direction. After adjacent plum petals 2 are spliced ​​together, the two connected semicircular grooves in the adjacent plum petals 2 are spliced ​​into a circular through hole as a bolt through hole.

[0039] The sheath 1 is composed of two semicircular cylinders on the left and right. The top and bottom of the sheath 1 are provided with waist-shaped holes at positions corresponding to the bolt through holes. After a plurality of bolts 9 are passed through the bolt through holes and the corresponding waist-shaped holes one by one, they are locked and fixed by nuts. Preferably, the inner surface of the sheath 1 body is provided with a plurality of circles of reinforcing ribs 11 from top to bottom to increase the strength of the sheath. A plurality of vent holes 13 are provided on the sheath body between adjacent reinforcing ribs 11.

[0040] The V-shaped bushing 3 can be correspondingly embedded and fixed in the V-shaped cable installation groove, so as to limit and fix cables of different specifications.

[0041] Preferably, the sheath type spacer ring for wind power cable further comprises a rubber ring 7, which is formed by splicing two symmetrical left and right semicircular rings and is fixed to the inner surface of the circular structure at the center of the plum blossom disk.

[0042] The feature of the spacer ring in this embodiment is that the plum blossom petal structure is simple, the connection adopts a steel ring and a connecting plate structure, has good rigidity, is easy to thread the center hole, and is convenient for on-site installation. The plum blossom petals are small pieces, and finally assembled into a plum blossom disk. There are grooves on the top and bottom of the plum blossom petals. This structure is assembled with the fixed steel ring to ensure that the fixed steel ring is stuck in the plum blossom petal groove. In the workshop, the plum blossom petals are fixed into one with the fixed steel ring, leaving a piece of plum petals unassembled. During on-site construction, the cable is inserted into the center and then the separate plum petals are assembled and fixed on the connecting plate. Then the cable is loaded into the plum blossom petal groove, and finally the sheath is assembled. This structure ensures that the plum blossom disk is strong and durable, easy to assemble on site, low manufacturing cost, and low requirements for molds and equipment. The bushing is a multifunctional structure. Cables of different specifications are stuck in the plum blossom groove, so that cable bundles of various specifications can be used, greatly reducing manufacturing costs.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sheathed spacer ring for a wind power cable, characterized in that: It comprises a set of sheaths (1), 2N plum petals (2), two fixing steel rings (4) and two connecting plates (5); N is greater than or equal to 4; The inner surface of each plum blossom petal (2) is arc-shaped, and the outer surface is concave inward to form a V-shaped cable installation groove; 2N plum blossom petals (2) are spliced ​​to form two plum blossom disks, and the two plum blossom disks are placed in parallel, one above and one below; The center of the plum blossom disk is a circular structure formed by arc-shaped splicing of the inner surfaces of N plum blossom petals (2), and the upper surface and the lower surface of the plum blossom disk are both provided with a circle of grooves (14) for mounting and fixing the steel ring (4) and the connecting plate (5); a plurality of connecting rod through holes (10) are provided in the grooves (14); The fixed steel ring (4) is an arc structure with a central angle greater than 180 degrees, and the connecting plate (5) is an arc structure with a central angle less than 180 degrees. After being spliced, one fixed steel ring (4) and one connecting plate (5) can be embedded in a groove (14) on the upper surface of the upper plum blossom disk, and after being spliced, another fixed steel ring (4) and another connecting plate (5) can be embedded in a groove (14) on the lower surface of the lower plum blossom disk; and through holes are also provided on the fixed steel ring (4) and the connecting plate (5) at positions corresponding to the connecting rod through holes (10); The tops of the plurality of connecting rods (6) are passed through the connecting rod through holes (10) on the upper plum blossom disk and the corresponding through holes on the fixed steel ring (4) or the connecting plate (5) in a one-to-one correspondence manner, and the bottoms are passed through the connecting rod through holes (10) on the lower plum blossom disk and the corresponding through holes on the fixed steel ring (4) or the connecting plate (5) in a one-to-one correspondence manner, and then are locked and fixed by nuts; Each plum petal (2) has a semicircular groove recessed along the horizontal axis on both sides thereof. After adjacent plum petals (2) are spliced ​​together, two connected semicircular grooves in adjacent plum petals (2) are spliced ​​together to form a circular through hole as a bolt through hole. The sleeve (1) is composed of two left and right semicircular cylinders. The top of the sleeve (1) and the bottom of the sleeve (1) are both provided with waist-shaped holes at positions corresponding to the bolt through holes. After a plurality of bolts (9) are passed through the bolt through holes and the corresponding waist-shaped holes one by one, they are locked and fixed by nuts.

2. A sheathed spacer ring for a wind power cable according to claim 1, characterized in that: It comprises V-shaped bushings (3) of different specifications, and the V-shaped bushings (3) can be correspondingly embedded and fixed in the V-shaped cable installation groove, so as to limit and fix cables of different specifications.

3. The sheathed spacer ring for wind power cable according to claim 1, characterized in that: It comprises a rubber ring (7), which is formed by splicing two symmetrical left and right semicircular rings and is fixed to the inner surface of the circular structure at the center of the plum blossom disk.

4. The sheathed spacer ring for wind power cable according to claim 1, characterized in that: One side of the plum petal (2) is provided with a recessed hook groove (12), and the other side is provided with a protruding hook (8); adjacent plum petals (2) are connected and fixed by matching the hook (8) and the hook groove (12).

5. The sheathed spacer ring for wind power cable according to claim 1, characterized in that: The inner surface of the main body of the sheath (1) is provided with a plurality of circles of reinforcing ribs (11) from top to bottom.

6. A sheathed spacer ring for a wind power cable according to claim 5, characterized in that: A plurality of ventilation holes (13) are provided on the sheath body between adjacent reinforcing ribs (11).

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