A conductive rod installation device

Abstract

The invention discloses an installation device of conducting rods. The installation device is characterized in that a guiding body is provided with three supporting-point seats and adjusting rods hinged to the supporting-point seats; an adjusting rod group is bridged between the front and rear two adjacent supporting-point seats; each adjusting rod group consists of at least two pairs of adjusting rods which are uniformly distributed at intervals along the circumferential direction surrounding a central axis; each pair of adjusting rods consist of a long adjusting rod and a short adjusting rod, which have different lengths; the supporting seat at the frontmost side or the rearmost side in all the supporting-point seats is a fixed supporting-point seat which is fixedly arranged on or integrally arranged with the guiding body, and the other supporting-point seats are movable supporting-point seats assembled on the guiding body along the front-rear directions in a guiding manner; and blocking pieces are arranged on the guiding body. The installation device disclosed by the invention has the advantages that when the installation device is used, the positions of the blocking pieces are adjusted on the guiding body along the front-rear direction, and rollers are driven by the expanding-retracting movement of the inner ends of all pairs of adjusting rods to move radially along the positioning circumference, so that the installation device is applicable to the installation of the conducting rods in sleeves with different diameters.

Description

technical field [0001] The invention relates to the technical field of installation devices for conductive rods, and is especially suitable for the assembly process of high voltage, extra high voltage and ultra high voltage bushings. Background technique [0002] At present, as the voltage level of high-voltage electrical equipment increases, the creepage distance and insulation distance of the incoming and outgoing porcelain bushings (composite bushings) also increase, and the diameter and length of the corresponding porcelain bushings also increase. The diameter of the million-volt incoming and outgoing porcelain bushing is more than one meter, and the length is more than ten meters long. When the conductive rod is installed in the porcelain bushing of this length, there is a phenomenon that the conductive rod "bows its head". There are two general solutions: one method is to directly add a flexible material to the end of the conductive rod. The sheath is used to contact ...

AI Technical Summary

Problems solved by technology

When the conductive rod is installed in the porcelain bushing of this length, there is a phenomenon that the conductive rod "bows its head". There are two general solutions: one method is to directly add a flexible material to the end of the conductive rod. The sheath is used to contact the inner wall of the casing with the sheath. Although the structure of the sheath is simple in this method, there is a large friction between the sheath and the porcelain casing. When the sheath moves with the conductive rod, the conductive The end of the rod is often exposed from the sheath, so that the protection of the sheath to the conductive rod is not in place, so that the end of the conductive rod will directly contact the inner wall of the porcelain sleeve, and eventually cause the inner wall of the porcelain sleeve to be scratched; One method is to use a small pulley inside the bushing to hold the conductive rod to prevent the end of the conductive rod from colliding with the inner wall of the bushing. This method is simple, but when in use, the small pulley can only prevent the end of the conductive rod from colliding with the inner wall of the bushing. Bumping the inner wall of the porcelain bushing cannot help the centering and positioning of the conductive rod. In the subsequent assembly work, other means are needed to assist in the centering and positioning, which increases the labor intensity of the conductive rod assembly.

[0003] The Chinese utility model patent with the notification number CN202363840U discloses a guide car for GIS three-phase common box busbar conductive rod tooling. Through the coaxial connection of the connecting rod extending front and back, a conductor hole for the conductive rod to be installed is opened on the guide body and the positioning plate, and several small rollers are evenly distributed on the hole wall of the conductor hole. There are several large rollers on the outer circumference of the body, so that the guide body can slide coaxially into the inner hole of the bus barrel through the big rollers, so as to ensure that the conductor holes on the guide body and the positioning plate are opposite to the contact seats on the disc insulator on the bus barrel. However, with the continuous increase of the diameter of the bus barrel, the diameters of the guide body and the positioning plate on the corresponding guide car also need to be increased accordingly, so that the whole guide car becomes cumbersome, and the installation of conductive wires in the bus barrel is increased. Reduce the labor load and work difficulty of the pole and reduce the work effect

Images