CN201843924U - Protecting device of permanent magnetic power-fail brake - Google Patents
Protecting device of permanent magnetic power-fail brake Download PDFInfo
- Publication number
- CN201843924U CN201843924U CN2010205896338U CN201020589633U CN201843924U CN 201843924 U CN201843924 U CN 201843924U CN 2010205896338 U CN2010205896338 U CN 2010205896338U CN 201020589633 U CN201020589633 U CN 201020589633U CN 201843924 U CN201843924 U CN 201843924U
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- China
- Prior art keywords
- brake
- temperature sensor
- temperature transducer
- electromagnetic brake
- normally closed
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Abstract
The utility model relates to a protecting device of a permanent magnetic power-fail brake, which comprises a temperature sensor, wherein the temperature sensor is of a normally-closed temperature sensor (2), the normally-closed temperature sensor (2) is serially connected with a reed pipe (1), an external connection end of the normally-closed temperature sensor (2) and the reed pipe (1) is respectively accessed to a signal input end of a controller. The utility model adopts a way that the reed pipe and the temperature sensor are connected with a program logic control (PLC) or a relay after being serially connected with each other, and the reed pipe and the temperature sensor are installed on the outer wall of an electric motor brake shell, so the electrification and the temperature status of the electric brake can be timely sensed, the reaction speed is fast, the braked equipment can be cooperatively operated with an electromagnetic brake, the electromagnetic brake is ensured to safely and efficiently brake the braked equipment during the application process, the abnormal abrasion of brake elements can be avoided, and the service life and the safety reliability of the electromagnetic brake can be improved.
Description
Technical field
The utility model relates to a kind of brake protection device, relates in particular to a kind of permanent magnetism power-off brake protective gear.
Background technique
Break is the mechanical parts that make the movement parts in the machinery stop or slowing down, utilize electromagnetic effect to realize the break of braking, be divided into various ways such as electromagnetic whirlpool brake and electromagnet-friction formula break, the permanent magnetism power-off brake is a kind of in the electromagnet-friction formula break, the action of permanent magnetism power-off brake is the dead electricity braking, energising is thrown off, special machines such as at present main and frequency conversion serial motors are supporting, now be widely used in the machineries such as metallurgy, building, chemical industry, food, lathe, stage, elevator, steamer, packing, realize stopping safety brake during outage fast.The performance of used friction material (brake component) directly influences braking process on the break; and the principal element that influences its performance is operating temperature and temperature rise speed; in the prior art; friction caused temperature sharply to raise and damages when electromotor brake was braked lock uint and do not opened fully in the motor rotation process; lack the corresponding protection device; electromotor brake motor under the situation that does not have energising also may rotate; this moment, motor can't be braked; as Chinese patent publication number: CN1486921 disclosed day: on April 7th, 2004; denomination of invention " electro-magnetic braking device and lifter abnormal detection device " is in order to get rid of the influence that lift is provided with the temperature in place; detect the unusual of electromagnetic brake accurately; the temperature transducer of instrumentation electromagnetic braking actuator temperature is set; the 1st temperature when instrumentation is attracted corresponding to braking releasing instruction armature respectively; with the 2nd preceding temperature that resets corresponding to braking maneuver instruction armature; relatively the 1st temperature and the 2nd temperature are when comparative result is that specified value is judged as electromagnetic brake when above and blocks; it is unusual that braking takes place.Can detect the abnormal state of electromagnetic brake accurately.But this device can only detect the abnormal state after the electromagnetic brake action, state in the time of can't detecting electromagnetic brake and begin to move, when electromagnetic brake has just begun to open or opening action when lagging behind, if braked part turns round prior to electromagnetic brake, then can produce strong friction with the braking member of electromagnetic brake, cause electromagnetic brake to reduce working life, even braking failure or damage, thereby Security and the reliability that electromagnetic brake uses influenced.
Summary of the invention
The purpose of this utility model is to lack effective protective gear at existing electromagnetic brake; electromotor brake is insufficient defective and the deficiency that causes wearing and tearing easily of folding in use; permanent magnetism power-off brake protective gear a kind of simple in structure, cheap, safe and reliable is provided.
For achieving the above object; technical solution of the present utility model is: permanent magnetism power-off brake protective gear; comprise temperature transducer; described temperature transducer is the Normally closed type temperature transducer; Normally closed type temperature transducer and dry reed-pipe are in series, and the external connection end of Normally closed type temperature transducer and dry reed-pipe is the signal input part of access controller respectively.
Described controller is PLC controller or relay.
The break-off signal setting value of described Normally closed type temperature transducer is more than or equal to 80 ℃.
The beneficial effects of the utility model are:
The utility model adopt dry reed-pipe and temperature transducer be in series the back and be braked the mode that device controller such as PLC or relay are connected, dry reed-pipe and temperature transducer are installed on the outer wall of electromagnetic brake coil, and in time whether the perception electromagnetic brake switches on and temperature regime.
2. dry reed-pipe is provided with the make-and-break signal that can in time detect and transmit the electromagnetic brake coil, make the concerted action of the equipment of being braked and electromagnetic brake energy, the assurance electromagnetic brake is in use braked being braked equipment safely and effectively, avoid the heel and toe wear of braking member, improve the working life and the safety reliability of electromagnetic brake.
3. the utility model is simple in structure, cheap for manufacturing cost, easy for installation, speed of response is fast, the automaticity height can be supporting with special machines such as frequency conversion serial motors, is suitable for various types of electromagnetism power-off brakes and uses, and can be widely used in having a extensive future in the machineries such as metallurgy, building, chemical industry, food, lathe, stage, elevator, steamer, packing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic representation of PLC controller put in circuit of the present utility model.
Fig. 3 is the schematic representation of relay put in circuit of the present utility model.
Among the figure: dry reed-pipe 1, Normally closed type temperature transducer 2 is braked equipment 3, electromagnetic brake 4, coil 5, PLC controller 6, relay 7.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail:
Referring to Fig. 1 to Fig. 3; permanent magnetism power-off brake protective gear of the present utility model; comprise temperature transducer; described temperature transducer is a Normally closed type temperature transducer 2; Normally closed type temperature transducer 2 is in series with dry reed-pipe 1, and the external connection end of Normally closed type temperature transducer 2 and dry reed-pipe 1 is the signal input part of access controller respectively.
Described controller is PLC controller 6 or relay 7.
The break-off signal setting value of described Normally closed type temperature transducer 2 is more than or equal to 80 ℃.
Dry reed-pipe 1 all is attached on the solenoid housing outer wall of electromagnetic brake 4 with Normally closed type temperature transducer 2, the effect of dry reed-pipe 1 is: after electromotor brake 4 energisings, the reed of dry reed-pipe 1 inside adhesive and conducting under the effect of electromagnetic field, when electromagnetic brake 4 does not have energising or sudden power, there is not an electromagnetic field near the dry reed-pipe 1, make the reed of dry reed-pipe 1 inside separate rapidly, circuit disconnects, break-make that like this can control circuit.
Normally closed type temperature transducer 2 is used for the heating temperature of perception electromagnetic brake 4, and when the temperature of electromagnetic brake 4 was lower than 80 degrees centigrade, the normally-closed contact in the Normally closed type temperature transducer 2 was in closed state; When the temperature of electromotor brake 4 reached 80 degrees centigrade, the normally closed electric shock of Normally closed type temperature transducer 2 inside disconnected, and cuts off circuit.
Referring to Fig. 2, be connected after the guide line of PLC controller 6 and dry reed- pipe 1 and 2 series connection of Normally closed type temperature transducer, PLC controller 6 be braked equipment 3 and link to each other, can control being braked equipment 3, be braked equipment 3 and can be motor, PLC controller 6 also is connected with coil 5.Being braked equipment 3 control requirements is not very high occasion, can substitute PLC controllers 6 with relay 7 yet.Coil 5 electromagnetic brake 4 after energising could be removed being braked the braking of equipment 3; this just need guarantee that coil 5 is in the energising working state when being braked equipment 3 and rotating; when being braked equipment 3 for motor; the braking lock uint that just needs to guarantee motor electromagnetic brake 4 when rotating is in the state of opening fully; and it is too high that the temperature of electromagnetic brake 4 is unlikely to, and temperature is too high represents that then potential safety hazard has appearred unusually or existed in the work of electromagnetic brake 4.
Working procedure of the present utility model is as follows, when electromagnetic brake 4 is started working, its coil 5 is switched on simultaneously, with electromagnetic actuation, when the magnetic field that coil 5 forms is magnetized the reed in the dry reed-pipe 1, the contact of reed will induce opposite polarity magnetic pole, because pole polarity attracts each other mutually on the contrary, when the magnetic force that attracts surpasses the drag of reed, just adhesive of contact separately, dry reed-pipe 1 conducting forms the loop of conducting in the lump with the Normally closed type temperature transducer 2 of connecting, controller output Continuity signal to being braked equipment 3 is braked equipment 3 as motor rotation so that start.When magnet spool 5 is not switched on or is not formed the normal magnetic field, reed in the dry reed-pipe 1 separately disconnects the loop of Normally closed type temperature transducer 2, to controller output cut-off signal, at this moment, controller can be controlled the equipment of being braked 3 and do not start as motor or delay startup.After the coil course of normal operation of electromagnetic brake 4, dry reed-pipe 1 and Normally closed type temperature transducer 2 all are on state, when coil 5 temperature of electromagnetic brake 4 raise and when reaching certain value, Normally closed type temperature transducer 2 disconnects, send cut-off signal to controller, at this moment, controller can in time disconnect the power supply of equipment of being braked 3 and electromagnetic brake 4, and can guarantee that electromagnetic brake 4 in use brakes being braked equipment 3 safely and effectively.The utility model is mainly used in the electromagnetism power-off brake, and is installed on the outer wall of electromagnetism power-off brake solenoid housing.
Claims (3)
1. permanent magnetism power-off brake protective gear; comprise temperature transducer; it is characterized in that: described temperature transducer is Normally closed type temperature transducer (2); Normally closed type temperature transducer (2) is in series with dry reed-pipe (1), and the external connection end of Normally closed type temperature transducer (2) and dry reed-pipe (1) is the signal input part of access controller respectively.
2. permanent magnetism power-off brake protective gear according to claim 1 is characterized in that: described controller is PLC controller (5) or relay (6).
3. permanent magnetism power-off brake protective gear according to claim 1 is characterized in that: the break-off signal setting value of described Normally closed type temperature transducer (2) is more than or equal to 80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205896338U CN201843924U (en) | 2010-11-03 | 2010-11-03 | Protecting device of permanent magnetic power-fail brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205896338U CN201843924U (en) | 2010-11-03 | 2010-11-03 | Protecting device of permanent magnetic power-fail brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843924U true CN201843924U (en) | 2011-05-25 |
Family
ID=44038816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205896338U Expired - Lifetime CN201843924U (en) | 2010-11-03 | 2010-11-03 | Protecting device of permanent magnetic power-fail brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786582A (en) * | 2012-10-29 | 2014-05-14 | 安海燕 | Driving method of power-off braking speed-down motor for electric mountain-climbing track car |
| CN113931955A (en) * | 2021-10-09 | 2022-01-14 | 杭州杰牌传动科技有限公司 | Brake motor protector with multiple safety protection functions and implementation method |
-
2010
- 2010-11-03 CN CN2010205896338U patent/CN201843924U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786582A (en) * | 2012-10-29 | 2014-05-14 | 安海燕 | Driving method of power-off braking speed-down motor for electric mountain-climbing track car |
| CN113931955A (en) * | 2021-10-09 | 2022-01-14 | 杭州杰牌传动科技有限公司 | Brake motor protector with multiple safety protection functions and implementation method |
| CN113931955B (en) * | 2021-10-09 | 2024-01-05 | 杭州杰牌传动科技有限公司 | Brake motor protector with multiple safety protection functions and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |