Node plate for space cable net structure, space cable net with cable convenient to change and cable change method

Abstract

The invention discloses a node plate for a space cable net structure. M through pin holes are evenly distributed in the surface of the mode plate and on the periphery around a center hole of the node plate. A set of centripetal joint bearings are arranged in each pin hole, and n through round holes for changing a cable are distributed on the periphery of the m pin holes in the surface of the node plate. Thread holes for fixing a temporal cable are arranged on the periphery of the node plate, m and n are integral numbers which are larger or equal to 2 and smaller or equal to 50. The node plate is round-disc-shaped or in the shaped of a flat cylinder with the cross section in the shape of a square, a hexagon and a polygon. A space cable net with a cable convenient to change comprises a cable and the node plate used for the space cable net structure used for connecting the cable. The cable is fixed on the node plate used for the space cable net structure through a pin shaft and the centripetal joint bearing and can rotate relative to a vertical direction and a horizontal direction of the node plate. The node plate for the space cable net structure and the space cable net with the cable convenient to change are compact in structure, safe, reliable, simple and convenient to manufacture, precise in positioning, light in weight, and meanwhile, the cable can be conveniently replaced.

Description

technical field [0001] The invention relates to a space cable net accessory and the space cable net thereof, in particular to a space cable net convenient for changing cables and a node plate for the space cable net structure thereof. Background technique [0002] In order to combine the space cables into a cable net, the usual practice is to weld the required number of lugs 7 around the cylinder 6 to form a columnar connection to the node plate 6 for the cables, and the cables 3 are respectively anchored to the lugs through the fork lugs 8 7, realize the connection between the cables (see Figure 6-Figure 7 ); Such a structure has the following deficiencies: [0003] 1) Heavy weight will increase the weight of the entire cable net structure, which is not conducive to the stress of the cables and reduces the safety factor of the cables; or in order to ensure the safety factor of the cables, the specification of the cables needs to be increased, thereby increasing the entire ...

AI Technical Summary

Problems solved by technology

[0003] 1) Heavy weight will increase the weight of the entire cable net structure, which is not conducive to the force of the cable and reduces the safety factor of the cable; or in order to ensure the safety factor of the cable, the specification of the cable needs to be increased, thereby increasing the entire cable net. manufacturing costs;

[0004] 2) Since the fork plate is connected to the cylinder through welding, it is difficult to guarantee the welding quality, which may easily cause safety hazards in the cable net structure, and at the same time, it is difficult to control the position accuracy between the lug plates;

[0005] 3) The angle between the ear plates cannot be adjusted, and the cable can only rotate in the vertical direction around the center hole 71 of the fork ear, and cannot achieve horizontal rotation;

[0006] 4) It is not easy to guarantee the accuracy of the center hole of the fork lug on the lug plate, and it cannot be used in projects with high installation requirements;

[0007] 5) There is no cable replacement device on the node, which is inconvenient for cable replacement during the cable network operation cycle

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