Combined tool for replacing direct-current grounding electrode line suspension string
A DC grounding and combination tool technology, applied in the direction of overhead line/cable equipment, etc., can solve the problems of loosening and poor stability of the clamping nut connecting screw, and achieve the effect of firm connection, improved stability and stable connection
Pending Publication Date: 2021-02-26
STATE GRID HUBEI ELECTRIC POWER CO LTD MAINTENANCE CO +2
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problem that in the prior art, the clamp body, the base and the clamping plate are connected together by connecting screw rods and compression nuts. After long-term use, the clamping nuts will loosen with the connecting screw rods. Due to the problem of poor stability, a combined tool for replacing the dangling string of the DC grounding electrode line is proposed
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0021] refer to Figure 1-3 , a combination tool for replacing the hanging string of a DC grounding electrode line, including a fixture main body 1, a hanging point angle steel 8 and a splint 7, the bottom end of the hanging point angle steel 8 is attached to the splint 7, and two hanging strings are hung The point angle steel 8 is directly lowered and clamped with a base 2, and a first sliding cavity 24 is provided in the clamp main body 1, and a first spring 21, a first sliding block 22 and a first clamping rod 23 are arranged in the first sliding cavity 24. A clamping rod 23 is interference fit with the first sliding block 22, the first spring 21 is sleeved on the...
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The invention discloses a combined tool for replacing a DC grounding electrode line suspension string, and the combined tool comprises a clamp main body, suspension string hanging point angle irons, and a clamping plate, the bottom ends of the suspension string hanging point angle irons are attached to the clamping plate, two suspension string hanging point angle irons are vertically clamped witha pedestal, and the clamp main body is provided with a first sliding cavity; and a first spring, a first sliding block and a first clamping rod are arranged in the first sliding cavity. By arranging the first clamping rod, the second clamping rod and the stabilizing column, under the elastic action of the first spring, the first clamping rod is clamped into the second clamping groove, and under the elastic action of the second spring, the second clamping rod is clamped into the third clamping groove, so that the stabilizing column can be firmly clamped into the top clamping groove and the bottom clamping groove; therefore, the clamp body, the base and the clamping plates are connected more firmly, and dismounting is more convenient.
Description
technical field [0001] The invention relates to the technical field of high-voltage direct current transmission, in particular to a combined tool for replacing a hanging string of a direct current ground electrode line. Background technique [0002] High-voltage direct current transmission is a high-power long-distance direct current transmission that utilizes the advantages of stable direct current with no inductive reactance, capacitive reactance does not work, and no synchronization problems. The power transmission process is direct current, which is often used in submarine cable power transmission and the connection between asynchronously operating AC systems. [0003] Publication number CN209434754U discloses a combined tool for replacing the hanging string of the DC grounding electrode line, including a fixture main body, a screw hole on the bottom surface of the fixture, a screw hole on the side wall of the fixture, a base, a screw hole on the base, a connecting screw...
Claims
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IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 董晓虎姚京松吴军程绳杜勇范杨侯新文张楚谦金哲辛巍
Owner STATE GRID HUBEI ELECTRIC POWER CO LTD MAINTENANCE CO