Mutual inductor disassembly-assembly bracket in switch cabinet
A technology for transformers and switch cabinets, which is applied in the field of disassembling and assembling brackets, can solve the problems of high work intensity, damage to equipment, and small space, and achieve the effects of ensuring safety and reliability, reducing work intensity and improving work efficiency.
Inactive Publication Date: 2012-03-21
STATE GRID ANHUI ELECTRIC POWER CO LTD ANQING POWER SUPPLY CO +1
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Problems solved by technology
[0003] There are three relatively large hidden dangers in the above operation process: 1. Due to the small space and many operators, the work intensity is high and the efficiency is low
2. Manpower is required to lift heavy and heavy equipment, which is easy to fall, so there is a greater chance of injuring people and equipment, and there is a certain safety risk
3. The construction process is relatively rough
Method used
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Embodiment
[0020] Example: Combined Figure 1-3 , the transformer disassembly bracket in the switch cabinet of this embodiment includes:
[0021] A height-adjustable base 1, the load-bearing sleeve 2 is detachably connected to the base 1 by means of bolts at the bottom of the flange, and a centripetal thrust sliding bearing 3 is arranged on the top of the load-bearing sleeve. A rotatable mating nut 4 is arranged on the bearing, and the mating nut is supported and rotated by a sliding bearing to reduce friction.
[0022] A trapezoidal screw threaded screw 5 matched with the mating nut is set, the top of the screw is detachably connected with a supporting plate 6 with a flange and bolts, and the lower part of the screw is integrally connected with a guide sleeve 7, in order to realize the guide sleeve The cylinder can only be raised and lowered in the load-bearing sleeve without rotation. Four guide bolts 11 extending radially toward the inner cavity of the load-bearing sleeve are arrange...
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The invention discloses a mutual inductor disassembly-assembly bracket in a switch cabinet, which comprises a height-adjustable base, an involution nut and a trapezoidal-thread screw rod, wherein a load-bearing sleeve is connected to the base in an assembly and disassembly mode; the top of the load-bearing sleeve is provided with a centripetal thrust sliding bearing; the involution nut is arranged on the sliding bearing; the trapezoidal-thread screw rod cooperates with the involution nut; the top of the screw rod is connected with a supporting plate in an assembly and disassembly mode; the lower part of the screw rod is connected with a guide sleeve in an integral mode; and a position limiting structure, which enables the guide sleeve to only rise or fall but not rotate in the load-bearing sleeve, is arranged between the guide sleeve and the load-bearing sleeve. The bracket has the functions of lifting, supporting and adjustment of horizontal surface position; and one person can use the bracket to lift, disassemble and assemble the mutual inductor.
Description
Technical field: [0001] The invention relates to a lifting tool, in particular to a dismounting bracket used for lifting and supporting operations during installation and disassembly of transformers (voltage and current) in a closed switch cabinet. Background technique: [0002] Closed switchgear is more and more widely used in 35kV and 10kV voltage levels. The high-voltage part of the switchgear includes switches and operating mechanisms, switches, busbars, transformers, cable heads, baffles and protective devices. In a relatively narrow space, the transformer is dry type, weighing about 180kg, fixed in the switch cabinet, 120-140cm above the ground. When disassembling and installing the transformer during power outage maintenance, 2-3 people are required to lean over and squeeze into the cabinet for operation. [0003] There are three relatively large hidden dangers in the above-mentioned operation process: 1, because the space is narrow and small, there are many operator...
Claims
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IPC IPC(8): H02B3/00
Inventor 王振华周晨李友平翁晓军程军
Owner STATE GRID ANHUI ELECTRIC POWER CO LTD ANQING POWER SUPPLY CO