Locking device of mine explosion-proof and intrinsically safe multi-circuit vacuum electromagnetic starter
A technology of electromagnetic starter and locking device, which is applied to circuits, electric switches, electrical components, etc., can solve the problems of live maintenance of starters, hidden dangers, high cost, etc. simple effect
Active Publication Date: 2016-03-09
TIANDI CHANGZHOU AUTOMATION +1
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Problems solved by technology
In order to prevent the possibility of opening the door for inspection and maintenance of the starter under the power-on state due to various reasons, the starter is usually equipped with a door-opening safety locking device. , That is to say, the door of the starter can also be opened when the power is on, which is easy to cause live maintenance of the starter, and in the explosive environment of the coal mine, such an operation will bring huge hidden dangers to safety
Moreover, the locking device of the current starter is usually a single locking device, which has a complex structure and high cost, and when more than one sub-chassis needs to be cascaded in the main box of the starter, the locking device usually cannot be connected or used. cascading is difficult
Method used
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Embodiment 1）
[0056] In this embodiment, when describing the orientation, use figure 1 The direction facing is the front in the description, with figure 1 The direction of the back is the back in the description, figure 1 The left-right direction of is still the left-right direction in the description, figure 1 The up and down direction of is still the up and down direction in the description.
[0057] See Figure 1 to Figure 5 , the locking device of the mining explosion-proof and intrinsically safe multi-circuit vacuum electromagnetic starter (hereinafter referred to as the starter) of this embodiment is mainly composed of a central locking device 1, an isolating switch locking device 2, a power supply locking device 3, a fast The door-opening locking device 4, the first locking bar 5, the first linkage 6, the driven gear 7, the second linkage 8, the second locking bar 9, the casing 100, and the quick-opening door 101 are composed. The quick-opening door 101 is installed on the box bo...
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The invention provides a locking device of a mining flameproof and intrinsically-safe multi-loop vacuum electromagnetic starter. The locking device includes a central locking device, a disconnecting switch locking device, a power source locking device, a quick operating valve locking device, a first locking bar, a first linkage device, a driven gear device, a second linkage device, a second locking bar, a box body and a quick operating valve; the central locking device is in transmission connection with one gear at one end of the first locking bar; the quick operating valve is in transmission connection with a gear of the second locking bar; and the first locking bar and the first linkage device are in transmission connection with the driven gear device. In locking, the disconnecting switch locking device and the power source locking device are in insertion connection with the first locking bar, and the second locking bar is in elastic connection with the second linkage device. In unlocking, neither the disconnecting switch locking device nor the power source locking device makes contact with the first locking bar. The locking device of the mining flameproof and intrinsically-safe multi-loop vacuum electromagnetic starter has the advantages of simple structure, low cost, greatly improved safety and convenience in cascade connection.
Description
technical field [0001] The invention relates to a safety protection mechanical device for mining equipment, in particular to a locking device for a mine explosion-proof and intrinsically safe multi-circuit vacuum electromagnetic starter. Background technique [0002] The safe starting of various motors in the underground coal mine operation site is a very important part of the safe production of coal mining enterprises. At present, the equipment used for starting motors in underground mines is mainly mine explosion-proof and intrinsically safe multi-circuit vacuum electromagnetic starter ( The following are referred to as the starter), and the starter must be opened for maintenance in a safe state, that is, in the case of a power failure. In order to prevent the possibility of opening the door for inspection and maintenance of the starter under the power-on state due to various reasons, the starter is usually equipped with a door-opening safety locking device. , That is to ...
Claims
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IPC IPC(8): H01H9/22
CPCH01H9/22H01H31/06
Inventor 谢伟贤黄小明史友仁潘黎明马海潇
Owner TIANDI CHANGZHOU AUTOMATION