Lightweight anti-wear pre-twisted suspension clamp

Abstract

The invention relates to the technical field of electric power fittings, and discloses a lightweight anti-wear pre-twisted suspension clamp which comprises a pre-twisted wire wrapping a cable, an end cover and a bracket, the end cover and the bracket wrap the pre-twisted wire, and the end cover and the bracket are distributed up and down and connected through a bolt; the preformed armor rod is wrapped by a rotating sleeve, sliding grooves used for rotation of the rotating sleeve are formed in the end cover and the bracket, a U-shaped corner bracket is installed at the top end of the end cover, and a supporting frame is hinged to the U-shaped corner bracket. The arrangement of the rotating sleeve effectively reduces the friction force between the pre-twisted wire and the end cover and the bracket when the cable swings, reduces the wear degree of parts, prolongs the overall service life of the suspension clamp, and reduces the replacement frequency of equipment; through the design of the cylindrical sliding grooves in the end cover and the bracket, the rotating sleeve rolls smoothly and is limited from sliding, the stability of the rotating sleeve in work is guaranteed, the suspension clamp can play a role stably, and the cable is not affected when releasing torque.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power fittings, and particularly to a lightweight and wear-resistant preformed suspension clamp. Background Art

[0002] In the power transmission system, the suspension clamp is a key component for supporting and fixing the cables in the overhead transmission line, and its performance directly affects the stability and safety of power transmission. Many problems that need to be solved urgently have emerged in the long-term actual use of traditional suspension clamps.

[0003] From the perspective of installation and maintenance, the structural design of traditional suspension clamps makes the installation and disassembly process extremely cumbersome. When maintaining and overhauling the internal preformed strands and cables, a large amount of time and manpower are often required, resulting in a long downtime, seriously affecting the continuity and working efficiency of power transmission, and at the same time increasing the maintenance cost.

[0004] When facing a complex natural environment, traditional suspension clamps are insufficient in coping ability. The cables swing frequently under the action of external forces such as wind, and large frictional forces will be generated between the preformed strands and the end covers and brackets of the suspension clamps. This continuous friction will not only accelerate the wear of the components, reduce the service life of the suspension clamps, increase the equipment replacement frequency, but also may cause component damage, thereby triggering power transmission failures and threatening the safe and stable operation of the power grid.

[0005] Moreover, the installation flexibility of traditional suspension clamps is poor. In different installation environments, such as mountainous areas with complex terrains and coastal areas with harsh climate conditions, it is difficult to make flexible adjustments according to actual needs, which to a certain extent limits its application range and cannot well meet the diverse needs of transmission line construction.

[0006] In view of these problems existing in the actual application of traditional suspension clamps, it is urgent to develop a new type of suspension clamp that can overcome the above defects. The lightweight and wear-resistant preformed suspension clamp emerges under such a background, aiming to improve the comprehensive performance of the suspension clamp and ensure the safety and efficiency of power transmission. Summary of the Invention

[0007] In view of the above deficiencies existing in the prior art, the present invention provides a lightweight and wear-resistant preformed suspension clamp.

[0008] The present invention provides the following technical solution: A lightweight and wear-resistant preformed suspension clamp, including preformed strands wrapped around the cable and end covers and brackets wrapped around the preformed strands, the end covers and brackets are distributed up and down and are connected by bolts;

[0009] The preformed wire is wrapped with a rotating sleeve, and the inner parts of the end cover and the bracket are provided with sliding grooves for the rotation of the rotating sleeve. The top end of the end cover is installed with a U-shaped angle bracket, and a support bracket is hinged on the U-shaped angle bracket.

[0010] Preferably, both ends of the bracket are designed to be bent downward, and the curved surfaces at both ends of the bracket support the cable wrapped by the preformed wire.

[0011] Preferably, the sliding grooves inside the end cover and the bracket are designed in a cylindrical shape. The rotating sleeve rolls in the sliding grooves of the end cover and the bracket and is restricted from sliding in the sliding grooves.

[0012] Preferably, the rotating sleeve includes two detachable semi-cylindrical sleeves. The preformed wire is wrapped by the two semi-cylindrical sleeves and fastened by screws. Curved surface grooves are provided on the outer sides of both semi-cylindrical sleeves. A curved surface plate is installed inside the rectangular groove, and a number of groups of rollable balls are provided on the curved surface plate. The balls roll along the sliding grooves inside the end cover and the bracket.

[0013] Preferably, elastic layers are provided inside the two semi-cylindrical sleeves, and the two semi-cylindrical sleeves clamp the preformed wire through the elastic layers.

[0014] Preferably, a number of groups of notches for the rolling of the balls are provided on the curved surface plate, and the balls extend out from the notches of the curved surface plate and slide on the inner walls of the sliding grooves of the end cover and the bracket.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The setting of the rotating sleeve effectively reduces the friction between the preformed wire and the end cover and the bracket when the cable swings, reduces the wear degree of the components, extends the overall service life of the suspension clamp, and reduces the equipment replacement frequency. The cylindrical sliding groove design inside the end cover and the bracket enables the rotating sleeve to roll smoothly and restricts its sliding, ensuring the stability of the rotating sleeve during operation, and further ensuring that the suspension clamp can play a stable role without being affected when the cable releases torque.

[0017] (2) The curved surface plate with balls is installed in the curved surface groove on the outer side of the semi-cylindrical sleeve. The balls further reduce the friction between the rotating sleeve and the sliding groove, make the rotating sleeve rotate more flexibly, effectively reduce the wear degree, and improve the smoothness of the equipment operation.

[0018] (3) Both ends of the bracket are bent downward, and its curved surface fits the shape of the cable, providing stable support, preventing the cable from wearing against the bracket due to gravity or external force, ensuring the safety of the cable during suspension, and reducing the risk of cable failure. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Internal structure schematic diagram;

[0021] Figure 3 Schematic diagram of the rotating sleeve structure of the present invention.

[0022] In the figure: 1, bracket; 2, end cover; 4, U-shaped angle bracket; 5, support frame; 6, preformed strand; 7, rotating sleeve; 71, semi-circular sleeve; 72, curved surface groove; 73, curved panel; 74, ball. Specific embodiments

[0023] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. To keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known components are omitted in the present disclosure to avoid unnecessarily obscuring the concepts of the present invention.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 , a lightweight and wear-resistant preformed suspension clamp, including a preformed strand 6 wrapped around the cable and an end cover 2 and a bracket 1 wrapped around the preformed strand 6. The end cover 2 and the bracket 1 are distributed vertically and connected by bolts. By means of bolt connection, the installation and disassembly of the end cover 2 and the bracket 1 are facilitated, and the maintenance and repair of the internal preformed strand 6 and the cable are convenient.

[0025] A rotating sleeve 7 is wrapped around the preformed strand 6, and a chute for the rotation of the rotating sleeve 7 is provided inside the end cover 2 and the bracket 1. The setting of the rotating sleeve 7 can effectively reduce the friction between the preformed strand 6 and the end cover 2 and the bracket 1 when the cable swings under the action of external forces such as wind, thereby reducing wear and extending the service life of the suspension clamp. A U-shaped angle bracket 4 is installed at the top of the end cover 2, and a support frame 5 is hinged to the U-shaped angle bracket 4. The support frame 5 can be adjusted according to actual installation requirements to adapt to different installation environments, enhancing the flexibility and stability of the installation of the suspension clamp.

[0026] Both ends of the bracket 1 are designed to bend downward, and the curved surfaces at both ends of the bracket 1 support the cable wrapped by the preformed strand 6. This design can better fit the shape of the cable, provide stable support, prevent the cable from wearing against the bracket 1 due to gravity or other external forces, and ensure the safety of the cable during suspension.

[0027] The chute inside the end cover 2 and the bracket 1 is designed in a cylindrical shape. The rotating sleeve 7 rolls inside the chute of the end cover 2 and the bracket 1, and the sliding of the rotating sleeve 7 inside the chute is restricted. The cylindrical chute design makes the rolling of the rotating sleeve 7 smoother, while restricting its sliding, ensuring the stability of the rotating sleeve 7 during operation, and further ensuring that the suspension clamp can stably play its role. When the cable releases torque, the rotating sleeve 7 is driven by the cable to rotate inside the chute of the end cover 2 and the bracket 1, without affecting the torque release.

[0028] The rotating sleeve 7 includes two detachable semi-circular sleeves 71. The preformed strand 6 is wrapped by the two semi-circular sleeves 71 and fastened by screws. This detachable design facilitates the installation and replacement of the rotating sleeve 7. When the rotating sleeve 7 is worn or damaged, it can be quickly repaired or replaced, improving the maintenance efficiency. Moreover, curved surface grooves 72 are provided on the outer sides of the two semi-circular sleeves 71. A curved panel 73 is installed inside the rectangular groove 72, and a number of groups of rollable balls 74 are provided on the curved panel 73, and the balls 74 roll along the chute inside the end cover 2 and the bracket 1. The setting of the balls 74 further reduces the friction between the rotating sleeve 7 and the chute of the end cover 2 and the bracket 1, making the rotation of the rotating sleeve 7 more flexible and effectively reducing the degree of wear.

[0029] Elastic layers are provided inside the two semi-circular sleeves 71, and the two semi-circular sleeves 71 clamp the preformed strand 6 through the elastic layers. The existence of the elastic layers enables the semi-circular sleeves 71 to better adapt to the shape of the preformed strand 6, while providing a certain buffering effect to avoid damaging the preformed strand 6 during installation or use.

[0030] A number of groups of notches for the rolling of the balls 74 are provided on the curved panel 73, and the balls 74 extend from the notches of the curved panel 73 and slide on the inner wall of the chute of the end cover 2 and the bracket 1. This structural design ensures that the balls 74 can roll stably on the curved panel 73, while having good contact with the inner wall of the chute of the end cover 2 and the bracket 1, realizing smooth rolling friction, so as to achieve the purpose of reducing wear.

[0031] Working principle: When installing this lightweight anti-wear preformed suspension clamp, first tightly wrap the preformed wire 6 around the cable, then clamp two semi-circular sleeves 71 on the preformed wire 6 through the elastic layer and fasten them with screws. Next, place the preformed wire 6 with the installed rotating sleeve 7 on the bracket 1, so that the curved surfaces at both ends of the bracket 1 support the cable, and then install the end cover 2 on the bracket 1 and firmly connect the end cover 2 and the bracket 1 through bolts. At this time, the rotating sleeve 7 is located in the chute inside the end cover 2 and the bracket 1. When the cable swings under the action of external forces such as wind, the rotating sleeve 7 will roll in the chute, and the ball 74 will roll on the curved panel 73 and slide along the inner wall of the chute at the same time, thereby effectively reducing the friction between the preformed wire 6 and the end cover 2 and the bracket 1, and realizing the anti-wear function. At the same time, the support frame 5 hinged on the U-shaped angle bracket 4 can adjust the angle according to the actual situation to provide stable support for the suspension clamp.

[0032] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A lightweight, wear-resistant, pre-twisted suspension clamp, characterized in that: It comprises a pre-twisted wire (6) wrapped on the cable, and an end cover (2) and a bracket (1) wrapped on the pre-twisted wire (6), wherein the end cover (2) and the bracket (1) are arranged vertically and connected by bolts; The pre-twisted wire (6) is wrapped with a rotating sleeve (7), the end cover (2) and the bracket (1) are provided with a slide groove for rotating the rotating sleeve (7), the top end of the end cover (2) is installed with a U-shaped angle frame (4), and the U-shaped angle frame (4) is hinged with a support frame (5).

2. A lightweight, wear-resistant, pre-twisted suspension clamp according to claim 1, characterized in that: The two ends of the bracket (1) are designed to be bent downward, and the curved surfaces at the two ends of the bracket (1) support the cable wrapped with the pre-twisted wire (6).

3. A lightweight, wear-resistant, pre-twisted suspension clamp according to claim 1, characterized in that: The slide grooves inside the end cover (2) and the bracket (1) are designed to be cylindrical, and the rotating sleeve (7) rolls in the slide grooves of the end cover (2) and the bracket (1), and limits the sliding of the rotating sleeve (7) in the slide grooves.

4. A lightweight, wear-resistant, pre-twisted suspension clamp according to claim 1, characterized in that: The rotating sleeve (7) comprises two detachable semicircular sleeves (71), which are wrapped around the pre-twisted wire (6) and fastened by screws. The outer sides of the two semicircular sleeves (71) are each provided with a curved groove (72). A curved plate (73) is installed inside the rectangular groove (72). The curved plate (73) is provided with a plurality of groups of rolling balls (74). The balls (74) roll along the slide grooves inside the end cover (2) and the bracket (1).

5. A lightweight, wear-resistant, pre-twisted suspension clamp according to claim 4, characterized in that: An elastic layer is provided inside the two semicircular sleeves (71), and the two semicircular sleeves (71) clamp the pre-twisted wire (6) through the elastic layer.

6. A lightweight, wear-resistant, pre-twisted suspension clamp according to claim 4, characterized in that: The curved plate (73) is provided with a plurality of groups of notches for the rolling of the balls (74), and the balls (74) extend from the notches of the curved plate (73) and slide on the inner walls of the slide grooves of the end cover (2) and the bracket (1).

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