CN2157924Y

CN2157924Y - Controlling cabinet for elevator in mine

Info

Publication number: CN2157924Y
Application number: CN 93217341
Authority: CN
Inventors: 许登举
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-02
Filing date: 1993-07-02
Publication date: 1994-03-02
Anticipated expiration: 2003-07-02

Abstract

The utility model relates to a controlling cabinet for an elevator in mine, which adopts a low pressure vacuum contactor. The utility model completes the control of the overall process velocity of the elevator through the cut grafting of a control circuit to resistors connected with an electric machine rotor of a main circuit. The utility model is provided with an overvoltage absorbing apparatus. The entire circuits are all arranged in a cabinet body. The front and back of the cabinet body are both provided with a door with an observation window. So the cabinet body not only can be dustproof but also is convenient to observe and repair. The utility model is free from the effect of various factors. The utility model has the advantages of good performance, small noise, good insulativity and low failure rate. The utility model is an ideal control apparatus for mine elevation.

Description

Controlling cabinet for elevator in mine

The utility model relates to a kind of control housing that is used for controlling the mine hoist rotating speed, particularly a kind of mine hoist rotor magnetic force station control housing.

The control mechanism that is commonly used to control the mine hoist rotating speed mostly adopts motor rotor of hoist magnetic force station control panel, the unshielded shell of this control panel, its structure is to carry out the acceleration and deceleration control that cut-grafting resistance is finished gig by air type low pressure CJ12 type contactless switch, because the gig starting is frequent, big and the influence that is subjected to various factors in the air of load, cause the wearing and tearing of air type probe of contactor, bad contact, make to melting welding, its poor insulativity, and many suitable continuous work of contactless switchs, noise is big, accident rate height, not easy-maintaining.

The purpose of this utility model is to provide a kind of performance good, and noise is little, and fault rate is low, the mine hoist control housing of being convenient to keep in repair.

The utility model entire circuit all is arranged in the control housing cabinet for achieving the above object, be provided with the door that has observation window before and after the cabinet, adopt 3 grades of low-voltage vacuum contactless switchs of 5-10 platform, by control loop the resistance that is connected in the major loop on the rotor is carried out cut-grafting, finish gig overall process speed control, be in parallel behind 5-10 metal film resistor of correspondence serial connection respectively on three of rotor pig-tail wires in the major loop, cross-over connection has the low-voltage vacuum contactless switch often to open main contact between the line of each resistance and the line, thereby constitute the rotating speed handoff leg that is connected in series mutually with the corresponding 5-10 level of control loop, be connected with an over voltage absorption plant with three lead-in wires of rotor bonded assembly major loop mouth, to prevent the vacuum contactor switching surge, damage the rotor insulation.

The utility model is owing to adopt the low-voltage vacuum contactless switch to carry out cut-grafting resistance, finish the gig Whole Process Control and have the over voltage absorption plant, make this control housing not influenced by the air various factors, performance is good, and noise is little, good insulating, fault rate is low, again owing to the employing cabinet type structure, so, not only dustproof, and be convenient to observe and maintenance.

In conjunction with the accompanying drawings the utility model is described in detail below by embodiment:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model control loop electrical schematic diagram.

Fig. 3 is the utility model major loop electrical schematic diagram.

Among Fig. 1, components and parts such as vacuum contactor, surge absorber are installed on the interior control panel (1) of cabinet, and the control housing front and rear portions is provided with door (2), and each door (2) is provided with observation window (3).This control housing adopts 8 vacuum contactors to constitute 8 grades of rotating speed controls.8 vacuum contactor coil 1JC among Fig. 2,2JC, 3JC, 4JC, 5JC, 6JC, 7JC, 8JC is connected to the mouth of respectively controlling the branch road rectifier, power connection V0 after each rectifier one end parallel connection, the rectifier D1 other end is connected with the master controller circuit system in the minimum speed control branch road, all the other control branch road rectifier D2, D3, D4, D5, D6, D7, D8 often opens secondary contact 1JC-1 with low one-level rotating speed repeat circuit respectively, 2JC-1,3JC-1,4JC-1,5JC-1,6JC-1,7JC-1 serial connection back is connected with the corresponding circuit system of master controller.8 resistance 1R1-8R1 of each branch road in Fig. 3 major loop, 1R2-8R2,1R3-8R3 serial connection back one end is in parallel, other end a, b, 3 of c can be connected with three pig-tail wires of rotor respectively as mouth, mouth a, b, 3 of c are connected with a surge absorber DSA, and corresponding every grade of resistance 1R1-1R3 between line and the line, 2R1-2R3,3R1-3R3,4R1-4R3,5R1-5R3,6R1-6R3,7R1-7R3,8R1-8R3 cross-over connection respectively has one group of vacuum contactor often to open main contact 1JC1-1JC3,2JC1-2JC3,3JC1-3JC3,4JC1-4JC3,5JC1-5JC3,6JC1-6JC3,7JC1-7JC3,8JC1-8JC3 constitutes 8 grades of rotating speed handoff leg.

During real work, the major loop energized, gig work, when needing to quicken, operation master controller circuit system, can make vacuum contactor relay coil 1JC in 8 speed handoff leg of control loop successively, 2JC ... 8JC connects, when 1JC connects in the secondary handoff leg 1JC often open the secondary contact closure, vacuum contactor is often opened main contact 1JC1 in the major loop, 1JC2, the closed rotor of 1JC3 loop is excision one-level resistance 1R1 in the major loop, 1R2,1R3, when relay coil 2JC connects, in like manner can make and excise one-level resistance 2R1 in the rotor loop again, 2R2,2R3 ... connect until the 8JC coil, resistance complete resection in the rotor loop, motor is full speed operation, thereby reaches excision and insert resistance in the rotor loop, changes the rotating speed of gig.

Claims

1, a kind of mine hoist control housing, constitute by major loop and control loop, three of rotor pig-tail wires (a) in the major loop, (b), (c) be in parallel behind 5-10 resistance of corresponding respectively serial connection on, it is characterized in that control loop adopts 3 grades of low-voltage vacuum contactless switchs of 5-10 platform that major loop is controlled, in the major loop between the line of each resistance and the line cross-over connection have the low-voltage vacuum contactless switch often to open main contact, constitute the rotating speed handoff leg that is connected in series mutually with the corresponding 5-10 level of control loop, be connected with an over voltage absorption plant (DSA) with three pig-tail wire bonded assemblys of rotor major loop mouth, and entire circuit all is arranged on the interior control panel (1) of control housing cabinet, before the control housing, the rear portion is provided with door (2), and door is provided with observation window (3).