Explosion-proof junction box for mining conveyer belt driving device

Abstract

The invention discloses an explosion-proof junction box for a mining conveyer belt driving device. The explosion-proof junction box comprises a junction box, a wiring cavity, a phase line inserted rod component, a four-way phase line connecting component and a cover plate, wherein a wiring hole is formed in the side face of the junction box; the wiring cavity is inserted into the wiring hole, is communicated with an inner cavity of the junction box and is connected with the junction box through a fixing ring; the phase line inserted rod component is arranged in the wiring cavity; the four-way phase line connecting component is connected with the phase line inserted rod; the cover plate is arranged on the side face of the junction box. According to the explosion-proof junction box for the mining conveyer belt driving device, due to adoption of a copper cable, on the one hand, the original wiring board is abandoned, and the original connecting mode of directly stretching the cable into the junction box is avoided, so that direct cable connection is convenient and intuitive; on the other hand, because the cable is not required to directly stretch into the junction box, the whole junction box becomes a black box, the junction box is not required to be repeatedly opened or closed for wiring, and the sealing property and the safety of the junction box are guaranteed.

Description

technical field [0001] The invention relates to the technical field of cable lead-in of electrical equipment, in particular to a flameproof junction box for a mining conveyor belt driving device. Background technique [0002] Belt conveyor is the abbreviation of belt conveyor. The belt conveyor uses the continuous or intermittent movement of the conveyor belt to transport various items of different weights. It can not only transport various bulk materials, but also transport various cartons, packaging bags, etc. Large cargo, versatile. [0003] When the belt conveyor is used in a coal mine, a special junction box is required. Because there is gas everywhere in the coal mine, the equipment used is required to have an explosion-proof function. These explosion-proof requirements are reflected in many parts of the junction box. On the other hand, the need to ensure the explosion-proof gap between the terminal and the shell is one of them. In the past, the integral casting meth...

AI Technical Summary

Problems solved by technology

In the past, the integral casting method was often used, that is, the epoxy resin was poured into the mold after fixing the required terminals and fixing sleeves with the mold to form a whole. The disadvantage of this method is that it is easy to crack under the action of external force. The quality is often difficult to guarantee, the flameproof surface will be damaged during processing, the processing technology is complicated, and it is inconvenient to operate

In addition, the original junction box is to connect the cables directly into the connection cavity, and connect the cables through the terminal board in the junction box. The cable connection of this traditional connection method is very weak, and often affects the connection with the connection due to the loose connection. normal operation of connected devices

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