High voltage circuit breaker energy storage spring disassembly tool
A high-voltage circuit breaker and energy storage spring technology, which is applied in the field of high-voltage circuit breaker energy storage spring disassembly tools, can solve the problems of low efficiency and high work intensity, and achieve the effects of low cost, reduced work intensity, and easy portability
Inactive Publication Date: 2016-03-02
STATE GRID CORP OF CHINA +1
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Problems solved by technology
However, if you want to take out the energy storage spring safely, you need to stretch the spring at least 2-3cm, and you need to use about 1500N of force, which is equivalent to lifting a heavy object of 300 catties. The work intensity is high and the efficiency is low. Therefore, how to quickly, safely and at low cost Removing the stored energy spring is the key to replace the circuit breaker
Method used
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Embodiment
[0046] Example: such as figure 1 As shown in the figure, the disassembly tool for the energy storage spring of a high-voltage circuit breaker, the disassembly tool includes a support base, and the support base is provided with an energy storage spring lifting device.
[0047] The support seat includes a hollow sleeve 7 and an arc-shaped base plate 8 fixed on the lower end of the sleeve 7 .
[0048] The energy storage spring lifting device is inserted into the bushing 7 .
[0049] The casing 7 has an inner diameter of 18 mm, an outer diameter of 28 mm, the same length as the thread height of the screw rod 5, and the material is No. 55 steel with a density of about 7.85 g / cubic centimeter. The steel pipe link required for production weighs up to 0.75kg, has high hardness, strong wear resistance, and is not easily deformed after repeated use. The material is relatively common and the cost is low.
[0050] Such as figure 2 and image 3 As shown, the energy storage spring lift...
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The invention discloses a high-voltage circuit-breaker energy storage spring disassembling tool, which is characterized in that the disassembling tool comprises a support seat, wherein an energy storage spring lifting device is arranged on the support seat. Due to the adoption of the technical scheme, the high-voltage circuit-breaker energy storage spring disassembling tool has the characteristics that the safety factors are high, no potential safety hazard exists in an operation process; the disassembling tool is simple to manufacture and assemble, and is convenient to carry; an energy storage spring can be stretched naturally and stably, so that the stability is better, the phenomenon of uneven stressing is avoided, and the spring cannot be damaged; and the working intensity is reduced, the operation time is shortened, and the working efficiency is improved.
Description
technical field [0001] The invention relates to a tool for a substation, in particular to a tool for disassembling and assembling an energy storage spring of a high-voltage circuit breaker. Background technique [0002] During the operation of the substation, it is often encountered that the circuit breaker cannot be opened and closed normally due to the burnout of the closing coil, and even the line is powered off for maintenance, especially for the ZN21A-12 type circuit breaker. The working process for replacing this type of circuit breaker is: remove Switch housing, remove energy storage spring, replace closing coil, install energy storage spring, install switch housing. [0003] Through the test, the time-consuming statistics of each link of the maintenance operation of replacing the closing coil were made, and the summary is shown in Table 1. [0004] Table I [0005] [0006] It can be seen from Table 1 that in the maintenance operation of ZN21A-12 circuit breaker...
Claims
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IPC IPC(8): B25B27/30
Inventor 刘全崔超周轮赵继城史新海郭红军王雪梅刘静李红磊王韦杰
Owner STATE GRID CORP OF CHINA