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Electric cabinet of coal mining machine and coal mining machine with same

A kind of electromechanical and box technology, which is applied in the direction of substation/switchgear board/panel/desk, earthwork drilling, slitting machinery, etc. It can solve the problems of unavoidable ablation and achieve the effect of avoiding ablation

Inactive Publication Date: 2010-10-27
SANY HEAVY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this can reduce the induction arc between the contact points, it still cannot avoid the ablation effect of the arc flame on the electrical components around the disconnector

Method used

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  • Electric cabinet of coal mining machine and coal mining machine with same
  • Electric cabinet of coal mining machine and coal mining machine with same
  • Electric cabinet of coal mining machine and coal mining machine with same

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Experimental program
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Effect test

Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention.

[0027] Please refer to figure 1 , figure 2 and image 3 , figure 1 It is a schematic structural diagram of an electrical control box for a shearer provided by an embodiment of the present invention, in which the electrical components in the electrical control box of a shearer are shown with double-dotted lines; figure 2 yes figure 1 The enlarged view of part I-I in the middle shows the connection structure between the upper end of the protective fire-resistant plate and the box; image 3 yes figure 1 The enlarged view of part II-II in the middle shows the connection structure between the lower end of the protective refractory board and the box body.

[0028] The electrical control box of the coal shearer pro...

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Abstract

The invention discloses an electric cabinet of a coal mining machine and a coal mining machine comprising the same. The electric cabinet of the coal mining machine comprises a cabinet body and at least two electric elements positioned in the cabinet body, wherein at least one of the electric elements is an isolation switch, and a protective fireproof plate fixed with the cabinet body is arranged between the isolation switch and the other electric elements. In the optimal technical scheme, one side of the protective fireproof plate, which is close to the isolation switch, is provided with an insulated protective film. The protective fireproof plate can prohibit arc flame generated by the contact point of the isolation switch from being diffused towards the other electric elements, so that the ablation action of the arc flame to the other electric elements can be avoided; in the optimal technical scheme, the insulated protective film and the protective fireproof plate are combined; on one hand, the condition that the protective fireproof plate is broken down by electric arcs can be avoided; on the other hand, the condition that the other electric elements are ablated by the arc flame can be avoided; and therefore, the working reliability of the electric cabinet of the coal mining machine is enhanced, and the working life of the electric cabinet of the coal mining machine is prolonged.

Description

technical field [0001] The invention relates to a shearer technology, in particular to an electrical control box for a shearer, and also to a shearer with the electrical control box for a coal shearer. Background technique [0002] A coal shearer generally includes a cutting mechanism, a traction mechanism, electrical control equipment, an electric motor and a hydraulic system. Among them, the electrical control equipment is used to control and coordinate the actions between the various parts of the shearer, and is an important part of the shearer. Electrical control equipment generally includes a variety of electrical components, such as: converters, leakage detectors, gas detectors, gas alarms, humidity temperature sensors, angle sensors and voice alarms, etc. In view of the harsh working environment of the shearer, electrical control equipment is often integrated into multiple box structures to form an electrical control box for the shearer. [0003] When the coal shear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/04E21C35/00
Inventor 王文广刘文东刘磊张祚明申磊
Owner SANY HEAVY EQUIP
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