CN2275294Y

CN2275294Y - Power control cabinet for mine movable excavation equipment

Info

Publication number: CN2275294Y
Application number: CN 96218640
Authority: CN
Inventors: 於世荣; 黄纯智; 熊德华; 刘从伦; 游志全; 魏云豹
Original assignee: ELECTRIC FACTORY GUIZHOU POLYTECHMIC COLLEGE
Current assignee: ELECTRIC FACTORY GUIZHOU POLYTECHMIC COLLEGE
Priority date: 1996-08-12
Filing date: 1996-08-12
Publication date: 1998-02-25
Anticipated expiration: 2006-08-12

Abstract

The utility model relates to a power control cabinet for mine movable excavation equipment namely KCDG-81 type power control cabinet for mine movable excavation equipment, and is mainly composed of a box body (3), an inner box (9), an inner box soleplate (34), a pulling and prying support frame (9), etc. The utility model incomes line from alongside and is provided with an antidrip arrangement for stripping flat (32). A fusion type knife switch is installed on the inner box soleplate to enhance the safety of the equipment. Meanwhile, the utility model has the advantages of favorable anticreep function, one machine with multiple functions, convenient and agile operation and movement, and a power control cabinet for mine movable excavation equipment of superpower practicability.

Description

Mining mobile extractive equipment electrical power control cabinet

Mining mobile extractive equipment electrical power control cabinet, promptly the mining mobile extractive equipment electrical power control cabinet of KCDG-81 type is mining GENERAL TYPE electric equipment.

Existing mining mobile extractive equipment electrical power control cabinet, TORO-400E power supply box for example, its inlet wire cable is to be introduced by the window at casing top, underworkings or chamber top board drip or trickle very easily enters power supply box and jeopardizes in-box electric appliance and normally move from the casing top window; The casing of existing power supply box is to be supported on one four foot support, and in the use, it is very inconvenient to move on rough roadway floor; The main circuit of existing power supply box has only automatic air-break switch, does not have obvious breakpoint, lacks fail safe when operation and repair apparatus; The dropout power supply of the automatic air-break switch of existing power supply box is adjusted to being only applicable to the electric LHD power supply, and purposes is single; The earth leakage protective of existing power supply box is inoperative to the electric LHD of separate unit operation; Its demonstration that monitors earth system fault and normal operation places interior case, and the personnel that are awkward observe, and therefore in use limitation is big, and poor to the adaptive capacity of environment, purposes is single, is easy to generate security incident.

At the above-mentioned shortcoming that prior art exists, the purpose of this utility model is to provide a kind of mining mobile extractive equipment electrical power control cabinet, i.e. the mining mobile extractive equipment electrical power control cabinet of KCDG-81 type.Can effectively prevent to drip or trickle enters casing, whole cabinet under the support of dragging sled conveniently moving freely, the Fuse Type switch has obvious breakpoint, has the creepage protection function of single device operation, has strengthened fail safe.The utility model different overload current values more than two of can also adjusting can realize a tractor serves several purposes respectively as mining mobile extractive equipment electrical power control cabinet more than two, and are easy to operate, advantage such as safe and reliable.

The utility model is by outer case [3], internal box [19], interior box plate [34] and drag that sled [9] etc. is several mostly to be constituted.Its concrete structure contrast accompanying drawing describes: Fig. 1 be the utility model appearance structure schematic diagram, and the supporting mechanism of casing among the figure [3] is for prizing support [9] with dragging of fixedlying connected at the bottom of the case; Top, casing left side is provided with inlet wire cable [1], and the antidrip plate washer [32] of inlet wire cable [1] top is welded on the casing [3]; Label [2] is equipped with in casing cabinet door [5] top, and cabinet door [5] is connected with hinge [6] with casing [3]; The cabinet door handle [4] of switch door is equipped with at middle part, cabinet door [5] left side; Cable plug [7] is equipped with in the bottom half center, and outlet cable [8] is connected on the plug [7].Fig. 2 is when opening outer bin door [5]; the schematic diagram of chamber door in it; starting indicator light [10] is housed on the interior chamber door [18]; starting button [11]; stop indicator light [12] and stop button [13]; earth leakage protective device label [14], disconnected ground protection block label [15], overload selector switch [17] and interior door handle [16].Fig. 3 when opening interior chamber door [18] in box plate electric elements scheme of installation; on interior box plate [34]; Fuse Type knife switch [20] is installed; vacuum contactor [21]; current transformer [22] and two above thermal relays [23] are formed overload protection device; high-frenquency current blocking device [24] also is installed simultaneously; control transformer [25]; fuse [26], [27]; earth leakage protective device [28], disconnected ground protection block [29], filter joint [31]; for making things convenient for circuit to connect, be provided with wire casing [30] in the centre of interior box plate [34].Fig. 4 is the utility model schematic block circuit diagram, when the 1000V of neutral point insulating electric power system power supply through long cable section of ingoing line [1] when sending into control cubicle, after Fuse Type knife switch [20] closes a floodgate, press the button [11], control circuit [33] is connected, vacuum contactor [21] closure then, the 1000V power supply powers to the load through cable plug [7].When short circuit, overload, decompression occurring, when cable leakage and cable ground wire disconnection fault, the loop of control circuit [33] disconnects, and causes vacuum contactor [21] to disconnect, and then stops to power to the load.

Compared with the prior art; the utility model provides a kind of KCDG-81 type mining mobile extractive equipment electrical power control cabinet; it has not only overcome the prior art inlet wire and has leaked; potential safety hazards such as single device earth leakage protective is inoperative; also overcome shortcomings such as observing operation and mobile inconvenience simultaneously; form overload protection device owing to adopt instrument transformer and two above relays; make the utility model can be used for two or more different extractive equipments; overcome the single shortcoming of prior art purposes; make advantage with a tractor serves several purposes; enlarge the scope of application, improved the practicality of such electric equipment greatly; fail safe and reliability.

Description of drawings and embodiment:

Fig. 1 is an appearance structure schematic diagram of the present utility model;

Fig. 2 is a chamber door schematic diagram in the utility model;

Fig. 3 is a box plate electric elements scheme of installation in the utility model;

Fig. 4 is the utility model schematic block circuit diagram.Among the figure:

1--inlet wire cable; The 2--label;

The 3--outer case; 4--cabinet door handle;

5--cabinet door; The 6--hinge;

7--cable plug 8--outlet cable;

9--drags the sled support; 10--starts indicator light;

The 11--starting button; 12--stops indicator light;

The 13--stop button; 14--earth leakage protective device label;

The 15--ground protection block label that breaks; Chamber door handle in the 16--;

17--overload selector switch; Chamber door in the 18--;

The 19--internal box; 20--Fuse Type knife switch;

The 21--vacuum contactor; The 22--current transformer;

The 23--thermal relay; The 24--high-frenquency current blocking device;

The 25--control transformer; The 26--fuse;

27--fuse 28--earth leakage protective device;

The 29--ground protection block that breaks; The 30--wire casing;

The 31--filter joint; 32--antidrip plate washer;

The 33--control circuit; Box plate in the 34--.

Claims

1. mining mobile extractive equipment electrical power control cabinet, it is characterized in that: by outer case [3], interior case [19], interior box plate [34] and drag sled support [9] to form, at the bottom of the case of its outer case [3] with drag the sled support [9] for fixedlying connected, inlet wire cable [1] is located at casing [3] left surface top, and antidrip plate washer [32] is positioned at inlet wire cable [1] top, and is welded on the casing [3]; Starting indicator light [10] is installed on the interior chamber door [18], and starting button [11] stops indicator light [12] and stop button [13], earth leakage protective device label [14] and disconnected ground protection block label [15] and overload selector switch [17]; Fuse Type knife switch [20] is installed on the interior box plate [34], and two above thermal relays [23] summation current transformers [22] are formed overload protection device.