CN215646638U - Band-type brake constant tension coil control device - Google Patents
Band-type brake constant tension coil control device Download PDFInfo
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- CN215646638U CN215646638U CN202122023640.2U CN202122023640U CN215646638U CN 215646638 U CN215646638 U CN 215646638U CN 202122023640 U CN202122023640 U CN 202122023640U CN 215646638 U CN215646638 U CN 215646638U
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Abstract
The utility model discloses a band-type brake constant tension coil control device, which belongs to the technical field of motor band-type brake control and solves the problems that a band-type brake coil has short service life and the band-type brake coil is always electrified and burnt when a motor stops running, and the like, and the technical scheme of the device comprises a three-phase power line, a circuit breaker, a band-type brake coil switching part, a band-type brake coil, a power module and a band-type brake control part, wherein the three-phase power line supplies power to the band-type brake coil through the circuit breaker and the band-type brake switching part, the three-phase power supply part also supplies power to the band-type brake control part through the power module, the band-type brake control part controls the on-off time of the band-type brake switching part, the band-type brake control part controls the band-type brake coil to lose power after receiving a starting signal, and controls the band-type brake coil to lose power after the power for a set time after receiving the stopping signal, thereby prolonging the service life of the band-type brake coil, the overall working reliability and safety effect are improved.
Description
Technical Field
The utility model relates to the field of motor control, in particular to a band-type brake constant tension coil control device.
Background
At present, a brake device is generally connected with a power supply on the control of a locomotive, when the brake device is powered on, the brake is not carried out, the brake is in a release state, and when the brake is needed, a coil of the brake device needs to be controlled to be powered on. However, it is known that, in the current circuit connection, the current circuit connection usually directly controls the power supply of the brake coil which is kept for a long time, so that the brake coil is overheated, and if the brake coil is overheated for a long time, the brake coil and the motor simultaneously act to a certain extent, and the motor is over-current, so that the damage to the equipment is very large. The operation control by the control device is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, at least solves the technical problems in the related technology to a certain extent, and provides a contracting brake constant tension coil control device which has the advantages of being capable of delaying power-on, avoiding long-time power-on of a contracting brake coil and prolonging the service life.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a constant tension coil controlling means of band-type brake, includes three-phase power cord, circuit breaker, band-type brake coil switch portion, band-type brake coil, power module, band-type brake control portion, the three-phase power cord supplies power for the band-type brake coil through a circuit breaker and band-type brake switch portion, three-phase power supply portion still supplies power for the band-type brake control portion through power module, and the break-make opportunity of band-type brake control portion control band-type brake switch portion, wherein, the band-type brake control portion is after receiving the enabling signal, and control band-type brake coil loses the electricity, and band-type brake control portion loses the electricity again after receiving the shut down signal, control band-type brake coil is got the electricity and is set for the time.
Through above-mentioned technical scheme, after obtaining the start signal, can let the band-type brake coil lose the electricity to stagger motor control, and when needing the brake, can not cause the malfunction yet or the spurious triggering, can keep the band-type brake coil to lose the electricity at once after the end time that gets electricity, avoid the band-type brake coil to get electricity for a long time, can effectively improve the operational reliability of locomotive braking in-process, and increase of service life.
Preferably, the band-type brake control part comprises a forward switch, a reverse switch, a forward relay, a reverse relay, a band-type brake relay, a first delay relay and a second delay relay, wherein the forward switch is connected with a coil of the forward relay, the reverse switch is connected with a coil of the reverse relay, and a normally closed switch of the forward relay, a normally closed switch of the reverse relay and a normally open switch of the first delay relay are connected in series to control the coil of the band-type brake relay to be electrified; after a normally open switch of the forward relay and a normally open switch of the reverse relay are connected in parallel, a coil of the first time delay relay is controlled through the normally open switch of the second time delay relay, and a coil of the second time delay relay is directly controlled. The second time delay relay is used for preventing frequent braking and contact competition in the star-delta starting circuit, and the first time delay relay only plays a role after the forward rotation switch or the reverse rotation switch is started for 1-2 seconds to start and completely switch the star-delta.
Through above-mentioned technical scheme, start signal is provided by corotation switch or reversal switch, when corotation switch or reversal switch triggered, makes corotation relay get electric or the reversal relay gets electric, and the normally closed switch disconnection that corresponds this moment, normally open switch is closed, thereby the band-type brake relay is in the power loss state, and the band-type brake coil loses the electricity promptly. Simultaneously the coil of second time delay relay gets electric, and its normally open switch time delay 1 second is closed, lets the coil of first time delay relay get electric after 1 second to this normally open switch of first time delay relay is closed after 1 second makes the band-type brake relay coil get electric, begins the band-type brake braking. When the positive and negative switch is released, the normally open switch of the second time delay relay is opened, the coil of the first time delay relay is powered off for 1 second, the band-type brake relay coil is started in the 1 second, namely, the band-type brake coil is powered off again after working for 1 second, and therefore the band-type brake coil is prevented from being overheated. The control utilizes one-section electrifying time delay, has the functions of protecting the band-type brake coil and preventing the switch contact of the relay from starting the motor under the misoperation, and can prolong the service life and increase the working reliability.
Preferably, the power supply module is used for converting 380V alternating current into 220V alternating current for output.
Through the technical scheme, the power supply module can be used for switching power supplies nearby, and 380V alternating current can be utilized more effectively.
Preferably, the band-type brake coil switch part is a normally open switch of a band-type brake relay.
Through the technical scheme, the band-type brake relay is used for controlling, and the work is stable and reliable.
Preferably, the normally open switch of the band-type brake relay is a two-way linkage switch and controls two lines of the band-type brake coil simultaneously.
Through above-mentioned technical scheme, further improve operational reliability, can break off the band-type brake coil completely, not only break off the return circuit, carry out the broken string isolation completely moreover.
Compared with the background technology, the technical effects of the utility model are mainly reflected in the following aspects:
1. the control and protection of the brake coil and the motor starting are completed by utilizing a circuit structure of power-on delay, the working reliability and safety are improved, and the service life can be prolonged;
2. the motor can be prevented from being started under the misoperation of the relay contact.
Drawings
FIG. 1 is a circuit for connecting a band-type brake coil according to an embodiment;
fig. 2 is a circuit diagram of the band-type brake control unit in the embodiment.
Reference numerals: 100. a three-phase power line; 200. a circuit breaker; 300. a band-type brake coil; 400. a power supply module; 501. a forward rotation switch; 502. a reverse switch; 503. a forward rotation relay; 504. a reverse relay; 505. a brake relay; 506. a first time delay relay; 507. and a second time delay relay.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
Example (b):
referring to fig. 1 and 2, the band-type brake constant tension coil control device includes a three-phase power line 100, a circuit breaker 200, a band-type brake coil switching unit, a band-type brake coil 300, a power module 400, and a band-type brake control unit. The power supply connected to the three-phase power line 100 is 380V alternating current. The circuit breaker 200 has two, QF0 and QF 1. The brake coil switch part is a normally open switch KM0-1 of the brake relay 505, and the coil of the brake relay 505 is KM 0. After passing through the power module 400, the three-phase power is converted into 220V ac power and has two power supply terminals, i.e., a live line L and a neutral line N.
The three-phase power line 100 supplies power to the band-type brake coil 300 through a breaker 200 and a band-type brake switch portion, the three-phase power supply portion also supplies power to the band-type brake control portion through a power module 400, and the band-type brake control portion controls the on-off time of the band-type brake switch portion. The band-type brake control part controls the band-type brake coil 300 to lose power after receiving the starting signal, and controls the band-type brake coil 300 to be powered on for a set time and then lose power after receiving the stopping signal.
As will be understood with continued reference to fig. 2, the brake control section includes a forward rotation switch 501, a reverse rotation switch 502, a forward rotation relay 503, a reverse rotation relay 504, a brake relay 505, a first delay relay 506, and a second delay relay 507. The forward rotation switch 501 and the reverse rotation switch 502 are both contact switches for jog control. The coil of the forward relay 503 is KA1, and has a normally open switch KA1-2 and a normally closed switch KA 1-1. Similarly, the coil of the reverse relay 504 is KA2, and the reverse relay is provided with a normally open switch KA2-2 and a normally closed switch KA 2-1. The coil of the brake relay 505 is KM0, and the normally open switch is KM0-1 in FIG. 1. The coil of the first time delay relay 506 is KT0, and the power-off time delay normally-open switch KT 0-1. The coil of the second time delay relay 507 is KT1, and the electrified time delay normally-open switch KT 1-1.
The forward switch 501 is connected with a coil of the forward relay 503, the reverse switch 502 is connected with a coil of the reverse relay 504, and a normally closed switch of the forward relay 503, a normally closed switch of the reverse relay 504 and a normally open switch of the first delay relay 506 are connected in series to control the coil of the internal contracting brake relay 505 to be electrified; after one normally open switch of the forward relay 503 and one normally open switch of the reverse relay 504 are connected in parallel, the coil of the first delay relay 506 is controlled by the normally open switch of the second delay relay 507, and the coil of the second delay relay 507 is directly controlled.
The power module 400 is used for converting 380V alternating current into 220V alternating current and outputting the alternating current. The power supply module can be used for switching power supplies nearby, and 380V alternating current can be used. The normally open switch of the brake relay 505 is a two-way linked switch and controls two lines of the brake coil 300 at the same time. The work reliability is further improved, the band-type brake coil 300 can be completely disconnected, a loop is disconnected, and disconnection isolation is completely carried out.
Description of the working process:
the starting signal is provided by the forward switch 501 or the reverse switch 502, when the forward switch 501 or the reverse switch 502 is triggered, the forward relay 503 is powered on or the reverse relay 504 is powered on, the corresponding normally closed switch is disconnected at the moment, the normally open switch is closed, and the brake relay 505 is in a power-off state, namely the brake coil 300 is powered off. Meanwhile, the coil of the second delay relay 507 is electrified, the normally open switch of the second delay relay is closed after 1 second, and the coil of the first delay relay 506 is electrified after 1 second, so that the normally open switch of the first delay relay 506 is closed after 1 second, the coil of the brake relay 505 is electrified, and the brake is started.
When the forward and reverse switch 502 is released, the normally open switch of the second delay relay 507 is opened, the coil of the first delay relay 506 is powered off for 1 second, the coil of the band-type brake relay 505 is started in the 1 second, namely, the band-type brake coil 300 is powered off again after working for 1 second, and therefore the band-type brake coil 300 is prevented from being overheated. The control utilizes one-section electrifying time delay, and has the functions of protecting the band-type brake coil 300 and preventing the switch contact of the relay from starting the motor under the misoperation, so that the service life can be prolonged, and the working reliability can be improved.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (5)
1. The utility model provides a band-type brake constant tension coil controlling means, includes three phase power line (100), circuit breaker (200), band-type brake coil switch portion, band-type brake coil (300), power module (400), band-type brake control portion, characterized by: the three-phase power cord (100) are supplied power for band-type brake coil (300) through a circuit breaker (200) and band-type brake switch portion, three-phase power portion still supplies power for band-type brake control portion through power module (400), and the break-make opportunity of band-type brake switch portion is controlled to band-type brake control portion, and wherein, band-type brake control portion is after receiving the enabling signal, and control band-type brake coil (300) lose the electricity again after receiving shut down signal, control band-type brake coil (300) the settlement time that gets electricity.
2. The band-type brake constant tension coil control device according to claim 1, wherein: the band-type brake control part comprises a forward switch (501), a reverse switch (502), a forward relay (503), a reverse relay (504), a band-type brake relay (505), a first delay relay (506) and a second delay relay (507), wherein the forward switch (501) is connected with a coil of the forward relay (503), the reverse switch (502) is connected with a coil of the reverse relay (504), and a normally closed switch of the forward relay (503), a normally closed switch of the reverse relay (504) and a normally open switch of the first delay relay (506) are connected in series to control the coil of the band-type brake relay (505) to be electrified; after a normally open switch of the forward relay (503) and a normally open switch of the reverse relay (504) are connected in parallel, a coil of the first delay relay (506) is controlled through the normally open switch of the second delay relay (507), and a coil of the second delay relay (507) is directly controlled.
3. The band-type brake constant tension coil control device according to claim 1, wherein: the power supply module (400) is used for converting 380V alternating current into 220V alternating current and outputting the alternating current.
4. The band-type brake constant tension coil control device according to claim 1, wherein: the band-type brake coil switch part is a normally open switch of a band-type brake relay (505).
5. The band-type brake constant tension coil control device according to claim 1, wherein: the normally open switch of the band-type brake relay (505) is a double-circuit linkage switch and controls two circuits of the band-type brake coil (300) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122023640.2U CN215646638U (en) | 2021-08-25 | 2021-08-25 | Band-type brake constant tension coil control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122023640.2U CN215646638U (en) | 2021-08-25 | 2021-08-25 | Band-type brake constant tension coil control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215646638U true CN215646638U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122023640.2U Active CN215646638U (en) | 2021-08-25 | 2021-08-25 | Band-type brake constant tension coil control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215646638U (en) |
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2021
- 2021-08-25 CN CN202122023640.2U patent/CN215646638U/en active Active
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