A shaft used between side plates, a closing half shaft and a circuit breaker with the closing half shaft
A closing half shaft and end shaft technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problem of inconvenient disassembly of the closing half shaft, and achieve the effect of shortening downtime, avoiding deformation, and improving maintenance efficiency.
Active Publication Date: 2018-04-13
CHINA TOBACCO HENAN IND
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Problems solved by technology
[0003] The purpose of the present invention is to provide a closing half shaft to solve the problem of inconvenient disassembly of the closing half shaft in the prior art; the purpose of the present invention is also to provide a shaft between side plates; the purpose of the present invention is also To provide a circuit breaker with the closing half shaft
Method used
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Embodiment Construction
[0024] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0025] The specific embodiment of closing semi-axis of the present invention, as Figure 1 to Figure 6 As shown, the closing half shaft is applied between the double baffles of the spring operating mechanism of the circuit breaker, and is used to trigger the energy storage of the closing spring. The left half-shaft body 1 and the right half-shaft body 2 that are set and can rotate synchronously along the axis, wherein the left half-shaft body 1 has a travel limit module 14, and the right half-shaft body 2 has a trigger module 22, and the closing The semi-shaft combines the original copper shaft and nylon assembly closing half shaft, which is divided into two stainless steel integrated half shafts with independent functional modules that can be connected in proportion. The left half-shaft body 1 and the right half-shaft body 2 are connected together thro...
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The invention relates to a shaft used among side plates, a closing half shaft and a breaker possessing the closing half shaft. The closing half shaft comprises a half shaft main body. The half shaft main body comprises a left half shaft main body and a right half shaft main body which are separately arranged on left and right sides. The left half shaft main body and the right half shaft main body are connected through a locking structure. One of the left half shaft main body and the right half shaft main body can be disengaged along a radial direction relative to the other one after the locking structure is unlocked. When the closing half shaft is dismounted and maintained, the locking structure only needs to be unlocked and then a portion which needs to be replaced is disengaged radially so that maintenance and replacing of the closing half shaft can be realized. And multi-person cooperation is not needed and one person can dismount different fault positions so that maintenance efficiency is greatly increased, fault shut down time is shortened and a deformation condition generated because force is forcibly applied on double baffle plates is avoided.
Description
technical field [0001] The invention relates to a shaft used between side plates, a closing half shaft and a circuit breaker with the closing half shaft. Background technique [0002] MA-40 series intelligent circuit breaker is suitable for power distribution network with AC 50Hz, rated voltage 380V / 400V, rated current 400A-3200A, used to distribute electric energy and protect lines and power supply equipment from overload, undervoltage, short circuit, single Hazards of faults such as phase-to-phase and ground faults. The closing half shaft is the main component of the leading actuator in the electric switching mechanism device. In practical applications, the trigger blocks at both ends of the closing half shaft will appear due to wear or extrusion. Aging, loosening, cracking and other phenomena. However, because the trigger device and the travel limit block at both ends of the closing half shaft are vulnerable parts, the failure rate is high, and the closing half shaft is ...
Claims
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IPC IPC(8): H01H71/10
CPCH01H71/10
Inventor 孙轶峰邱宗鹤谢滨唐克争赵振江马书和王志国吕保伟李建军吴建伟朱晓郧立献
Owner CHINA TOBACCO HENAN IND