Auxiliary trolley device for trolley opening-and-closing primary phasing

Abstract

The invention discloses an auxiliary trolley device for trolley opening-and-closing primary phasing. The auxiliary trolley device for trolley opening-and-closing primary phasing comprises a frame body, a safety protective door and shifting forks, wherein one end of the safety protective door which is retractable is hinged to the frame body, a left sliding block and a right sliding block are symmetrically installed on the frame body through sliding rails, traveling idler wheels are installed on the left sliding block and the right sliding block, the number of the shifting forks is two, the left shifting fork and the right shifting fork are used for stirring an insulating baffle door-opening linkage mechanism, and are correspondingly installed above the front end of the side face of the left sliding block and the front end of the side face of the right sliding block respectively, the left sliding block and the right sliding block are connected with a telescopic mechanism arranged on the frame body, and a telescopic locating mechanism of the left sliding block and the right sliding block are arranged on the frame body. According to the auxiliary trolley device for trolley opening-and-closing primary phasing, due to the fact that the situation that an insulating baffle is opened reliably, rapidly and safely, and can be kept can be ensured, only two persons are needed to accomplish phasing operation, manpower is saved, and working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of electric maintenance tools, and in particular relates to a primary phasing auxiliary device for a trolley switch. Background technique [0002] In the power system, the four elements of the grid connection of two power supply systems are the same phase sequence, the same voltage level, the same phase and the same frequency of the two power supply grids, so the primary phase sequence of the grid must be detected before grid connection; as my country With the continuous development of the regional economy, the demand for power supply continues to increase. Users often use multi-circuit or double-circuit power supply. If a power supply circuit fails, the power will be delivered to the user through other ring network points. Before this, it is necessary to check whether the phase sequence is Correct; in addition, after the line is overhauled or rectified, before resuming operation, it is also necessary to check...

AI Technical Summary

Problems solved by technology

For fixed (middle-mounted) switchgear, the phasing instrument can be directly exposed to the bare parts of the upper and lower charged bodies of the switch during phasing, and the operation is very simple; for trolley-type switches, the static contact is provided by an insulating barrier. The panel is closed, the insulating baffle is difficult to open and fix, and the phasing operation will be very difficult. When phasing, first pull the trolley switch to its inspection position in the switch cabinet, and then two workers use the insulating operating rod to align the switch. The left and right door opening linkage mechanism of the insulating baffle in the cabinet is controlled to open and hold the insulating baffle, and then two other staff members perform related phasing operations. The entire phasing work requires the participation of 4 staff members at the same time. There is too much manpower. When two workers use the insulating operating rod to open the insulating baffle, the force direction and size of the two are difficult to be consistent, resulting in difficulty in opening the insulating baffle, incomplete opening or tilting, making the work efficiency low, and there are problems. big security risk

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