CN106100457A

CN106100457A - Capacity brake control method

Info

Publication number: CN106100457A
Application number: CN201610501451.2A
Authority: CN
Inventors: 冼毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2016-11-09

Abstract

The invention discloses a kind of capacity brake control method, relate to electrical equipment manufacturing technology field；During starting, press start button, first contactor control circuit obtains electric, first catalyst controls electric motor starting and runs, time relay control circuit obtains the electric coil adhesive making the time relay simultaneously, the time delay of the time relay in the second contactor control circuit disconnects normally open contact Guan Bi, is that the second catalyst obtains electricity and prepares；When work to be left the motor off, press stop button, first contactor control circuit dead electricity, the normally closed interlock Guan Bi of the first catalyst in the second contactor control circuit makes the coil of the second catalyst obtain electricity adhesive simultaneously, the main contact Guan Bi of the second catalyst in braking circuit, braking circuit accesses the stator winding of motor, and motor is braked, until stall.The present invention can solve frequently to brake and make mechanical braking shortened equipment life, the problem that entreprise cost is high.

Description

Capacity brake control method

Technical field

The present invention relates to electrical equipment manufacturing technology field；A kind of capacity brake applying to motor braking controls Method.

Background technology

Motor is indispensable parts in commercial production, and a lot of equipment will lean on driven by motor could run, very Many occasions need motor to brake rapidly, and present motor braking method is a lot, and such as electromagnetic brake is exactly a kind of conventional motor Braking method, and some are started, brakes frequently for motor, braking can make mechanical braking shortened equipment life frequently, So that the production cost of enterprise increases.

Summary of the invention

It is an object of the invention to provide a kind of capacity brake control method, it can solve frequently to brake and make mechanical braking set The standby lost of life, the problem that entreprise cost is high.

In order to solve the problems referred to above, the technical solution used in the present invention is: this capacity brake control method, uses electric capacity Brake control realizes, and described capacity brake controls device and includes control chamber, is provided with open circuit in the case of described control chamber Device, fuse, the first catalyst, the second catalyst, thermorelay, the time relay, electric capacity, resistance and the first resistance；Described The chamber door of control chamber is provided with stop button and start button；Described fuse, stop button, start button, the second catalyst, First catalyst and thermorelay series connection form the first contactor control circuit, described first catalyst shape in parallel with start button Become the first catalyst holding circuit, described fuse, the time relay, the first catalyst, the second catalyst and thermorelay string Connection forms the second contactor control circuit, and described fuse, the first catalyst and time relay series connection form the time relay Control circuit, electric capacity formation in parallel with a resistor parallel circuit, described parallel circuit has three groups and connects into triangle, and described second Catalyst is connected formation braking circuit with the described parallel circuit connecting into triangle, and described braking circuit goes out with motor stator Line end connects；

Its implementation is: during starting, presses described start button, and described first contactor control circuit obtains electric, described first Catalyst controls electric motor starting and runs, and the most described time relay control circuit obtains the electric coil making the described time relay and inhales Closing, the time delay of the described time relay in described second contactor control circuit disconnects normally open contact Guan Bi, for described second Catalyst obtains electricity and prepares；When work to be left the motor off, press described stop button, described first contactor control circuit Dead electricity, the normally closed interlock Guan Bi of described first catalyst in the most described second contactor control circuit makes described second contact The coil of device obtains electricity adhesive, the main contact Guan Bi of described second catalyst in braking circuit, and described braking circuit is accessed electricity The stator winding of machine, motor is braked, until stall.

In technique scheme, more specifically scheme is it may also is that described second catalyst and the institute being connected into triangle State to connect between the line of parallel circuit and have the first resistance.

Owing to have employed technique scheme, the present invention compared with prior art, has the beneficial effect that due to this Bright is the leading-out terminal access braking circuit at motor stator, and its braking is circuit rather than mechanical braking, so frequently braking not The lost of life of braking circuit can be caused.

Accompanying drawing explanation

Fig. 1 is the control chamber front view of the present invention.

Fig. 2 is the principle schematic of the present invention.

Detailed description of the invention

The invention will be further described with embodiment below in conjunction with the accompanying drawings:

Capacity brake control method shown in Fig. 1 and Fig. 2, uses capacity brake to control device and realizes, and capacity brake controls dress Put and include control chamber, be provided with in the case of control chamber circuit breaker Q F, fuse FU, the first catalyst KM1, the second catalyst KM2, Thermorelay FR, time relay KT, electric capacity C, resistance R2 and the first resistance R1；The chamber door of control chamber is provided with stop button SB1 and start button SB2；Fuse FU, stop button SB1, start button SB2, the second catalyst KM2, the first catalyst KM1 Forming the first contactor control circuit with thermorelay FR series connection, the first catalyst KM1 is in parallel with start button SB2 forms first Catalyst holding circuit, fuse FU, time relay KT, the first catalyst KM1, the second catalyst KM2 and thermorelay FR Series connection formation the second contactor control circuit, fuse FU, the first catalyst KM1 and time relay KT series connection formation time continue Electrical apparatus control circuit, electric capacity C formation in parallel with resistance R2 parallel circuit, parallel circuit has three groups and connects into triangle, and second Catalyst KM2 is connected formation braking circuit, braking circuit and the leading-out terminal of motor stator with the parallel circuit connecting into triangle Connect；It is connected between second catalyst KM2 and the line of the parallel circuit being connected into triangle and has the first resistance R1.First resistance R1 For regulation resistance, its effect is the size of regulating brake force square, and resistance R2 is discharge resistance.

During starting, pressing start button SB2, the first contactor control circuit obtains electric, and the first catalyst KM1 controls motor to be risen Dynamic operation, time relay control circuit obtains the electric coil adhesive making time relay KT, the second contactor control circuit simultaneously In the time delay of time relay KT disconnect normally open contact Guan Bi, be that the second catalyst KM2 obtains electricity and prepares；When motor to be made stops When only working, press stop button SB1, the first contactor control circuit dead electricity, simultaneously in the second contactor control circuit The normally closed interlock Guan Bi of one catalyst KM1 makes the coil of the second catalyst KM2 obtain electricity adhesive, the second catalyst in braking circuit The main contact Guan Bi of KM2, accesses the stator winding of motor by braking circuit, and motor is braked, until stall.

The parallel circuit of electric capacity C formation in parallel with resistance R2 has three groups, can be connected into triangle or star, go out with motor stator Line end forms closed-loop path, and when the motor deenergization run, the remanent magnetism cutting stator winding in rotor produces sensing Electromotive force, and charge to electric capacity, its charging current forms exciting current in the stator windings, sets up a magnetic field, this magnetic field Interact with rotor remanent magnetism, produce a braking moment opposite to the direction of rotation, make the rapid stall of motor, complete system Dynamic.

Claims

1. a capacity brake control method, uses capacity brake to control device and realizes, and described capacity brake controls device bag Include control chamber, chopper (QF), fuse (FU), the first catalyst (KM1), the second contact are installed in the case of described control chamber Device (KM2), thermorelay (FR), the time relay (KT), electric capacity (C), resistance (R2) and the first resistance (R1)；Described control chamber Chamber door stop button (SB1) and start button (SB2) are installed；Described fuse (FU), stop button (SB1), startup are pressed Button (SB2), the second catalyst (KM2), the first catalyst (KM1) and thermorelay (FR) series connection form the first catalyst and control electricity Road, described first catalyst (KM1) formation in parallel with start button (SB2) the first catalyst holding circuit, described fuse (FU), the time relay (KT), the first catalyst (KM1), the second catalyst (KM2) and thermorelay (FR) series connection formation second Contactor control circuit, described fuse (FU), the first catalyst (KM1) and the time relay (KT) series connection form time relay Device control circuit, it is characterised in that: electric capacity (C) formation in parallel with resistance (R2) parallel circuit, described parallel circuit has three groups also Connecting into triangle, described second catalyst (KM2) is connected formation braking circuit with the described parallel circuit connecting into triangle, Described braking circuit is connected with the leading-out terminal of motor stator；

Its implementation is: during starting, presses described start button (SB2), and described first contactor control circuit obtains electric, described First catalyst (KM1) controls electric motor starting and runs, and the most described time relay control circuit obtains and electric makes described time relay The coil adhesive of device (KT), the time delay of the described time relay (KT) in described second contactor control circuit disconnects normally opened touching Head Guan Bi, obtains electricity for described second catalyst (KM2) and prepares；When work to be left the motor off, press described stop button (SB1), described first contactor control circuit dead electricity, described first catalyst in the most described second contactor control circuit (KM1) normally closed interlock Guan Bi makes the coil of described second catalyst (KM2) obtain electricity adhesive, described the in described braking circuit The main contact Guan Bi of two catalysts (KM2), accesses the stator winding of motor by described braking circuit, and motor is braked, until stopping Turn.

Capacity brake control method the most according to claim 1, it is characterised in that: described second catalyst (KM2) with connect Connect between the line of the described parallel circuit of triangularity and have the first resistance (R1).