Explosion-proof type three-phase asynchronous motor used for coal cutter cutting part
A shearer cutting part, three-phase asynchronous technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve problems such as explosion, achieve the effect of easy installation, guarantee explosion-proof requirements, and excellent explosion-proof effect
Inactive Publication Date: 2015-12-09
HUNAN AGRICULTURAL UNIV
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Problems solved by technology
However, this casing is not sealed, and the surrounding explosive gas mixture can enter the motor through the gaps between the joints of the various parts of the casing. When it comes into contact with ignition sources such as sparks, arcs, and dangerous high temperatures in the casing, explosions may occur
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[0031] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0032] Figure 1-3 It is a structural schematic diagram of an embodiment of the present invention, which includes a base 1, a junction box 2, a front cover 11, a rear cover 12, a rotating shaft 13, a rotor 14, a stator 15, a first cylindrical roller bearing 16, a deep groove Ball bearing 17, second cylindrical roller bearing 18, ground bar 20, partition plate 21, first cavity 22, second cavity 23, isolating reversing switch 24, terminal post 25, control terminal 26, cable pressing plate 27 , large cover plate 28, small cover plate 29.
[0033] The flameproof three-phase asynchronous motor for the cutting part of the shearer includes a machine base 1 and a junction box 2, the junction box 2 is arranged at the bottom of the machine base 1, and th...
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The invention relates to an explosion-proof type three-phase asynchronous motor used for a coal cutter cutting part. The explosion-proof type three-phase asynchronous motor comprises a motor base and a junction box. The junction box is arranged on the motor base, and the junction box and the motor base are integrally formed. A separating plate is arranged in the middle of the junction box. The separating plate and the junction box are integrally formed. The junction box is divided into a first cavity and a second cavity by the separating plate. The bottom end of the first cavity is provided with a large cover plate for sealing. The bottom end of the second cavity is provided with a small cover plate for sealing. The first cavity is internally provided with an isolation commutation switch. The separating plate is provided with connecting posts and control connecting terminals. The external side of the second cavity is provided with a large pressing disc. The top part of the second cavity is provided with a grounding bar. The motor base and the junction box are integrally welded together. A rotating shaft, rotor and a stator are arranged in the motor base. The isolation commutation switch is arranged in the first cavity of the junction box. A cable pressing plate is arranged at the side surface of the second cavity so that the size of the whole motor is enabled to be small and the structure is compact by the separated arrangement, electromagnetic interference can be effectively shielded and the explosion-proof effect is excellent.
Description
technical field [0001] The invention relates to a flameproof three-phase asynchronous motor for the cutting part of a coal mining machine. Background technique [0002] The main power source of the working part of the shearer is the motor, and its power supply comes from the generator of the shearer itself or an external power supply. The assembled shearer is a remote-controlled unmanned device that can mine coal deep into the mine. It is a modern coal mining machine. For the current equipment, the drive motor is the key technology of the whole machine as its independent design; the motor is installed on the main engine, and can rotate around its own cantilever under the control of the main engine hydraulic system, thereby adjusting the working angle of the shearer; the motor drives the power through the The output of the main shaft drives the coal mining reducer installed on itself. During the operation of the motor, due to the high power of the motor and the poor working c...
Claims
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IPC IPC(8): H02K5/22H02K5/173
Inventor 丁会张苏陈力航
Owner HUNAN AGRICULTURAL UNIV