CN205792016U - A kind of DC. rolling-door machine - Google Patents
A kind of DC. rolling-door machine Download PDFInfo
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- CN205792016U CN205792016U CN201620464283.XU CN201620464283U CN205792016U CN 205792016 U CN205792016 U CN 205792016U CN 201620464283 U CN201620464283 U CN 201620464283U CN 205792016 U CN205792016 U CN 205792016U
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- direct current
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Abstract
This utility model relates to a kind of DC. rolling-door machine, and a kind of DC. rolling-door machine, including change speed gear box, direct current generator, back casing, rear shell cover and controller；Described change speed gear box front end is provided with mounting seat；It is provided with brake gear in described back casing；Described brake gear includes brake disc, brake electric magnetic coil, brake block, spring；Described brake electric magnetic coil is provided with parallel winding and series connection winding；Described controller is provided with relay J 1, relay J 2 and controls button；Described control button is provided with stop key, lifting key and decline key.This utility model energy saves energy, circuit structure are simple, working stability.
Description
Technical field
This utility model relates to rolling screen door technical field, particularly relates to a kind of DC. rolling-door machine.
Background technology
Rolling screen door lifting is driven by door roller, and rolling screen door lifting puts in place or midway stops, and not only door roller motor to shut down, and also to brake door roller, and otherwise due to the weight of rolling screen door self, rolling screen door can down be fallen.
Existing DC. rolling-door machine braking control device is mainly made up of brake disc, brake block, brake spring and solenoid (electric magnet), under door roller halted state, the thrust of spring promotes brake block and brake disc to be in close contact and brakes；During door roller work, solenoid energising attracts brake block, makes brake disc separate with brake block, is maintained to door roller and shuts down.Solenoid is general and door roller motor winding parallel, owing to the voltage at solenoid two ends is fixing,
Therefore, being no matter solenoid energising moment of being sucked away from brake block, or maintain brake block and the released state of brake disc, the size of current of solenoid is identical.Actually, before electric magnet is not operating, owing to iron core and the armature of electric magnet exist magnetic gap, the most also there is a certain distance, so the moment of electric magnet action needs bigger electric current, and after electric magnet Guan Bi, unshakable in one's determination and armature tightly combines, and does not has therebetween magnetic gap, forms closed magnetic circuit, magnetic flux increases, and maintains the electric current of electric magnet Guan Bi just can be greatly reduced.It is, solenoid energising is sucked away from the moment of brake block, it is desirable to there is bigger electromagnetic attraction, namely requires that solenoid has bigger electric current, and maintenance is sucked away from state and has only to less electric current.Therefore, the solenoid of existing Parallel Design wastes a part of electric energy, also results in solenoid excessive heating；Secondly, the control circuit of existing DC. rolling-door machine is typically provided 3-4 relay, its objective is to make motor can rotate forward, invert, and makes interlock between relay, it is ensured that relay will not misoperation, so make circuit structure become complexity, expense is the highest.
Utility model content
This utility model overcomes the deficiencies in the prior art, it is provided that a kind of energy saves energy, circuit structure are simple, the door roller of working stability.
This utility model is achieved through the following technical solutions:
A kind of DC. rolling-door machine, including change speed gear box, direct current generator, back casing, rear shell cover and controller；Described change speed gear box front end is provided with mounting seat；It is provided with brake gear in described back casing；Described brake gear includes the brake disc being fixed on unidirectional current arbor, be fixed on back casing brake electric magnetic coil, brake block, spring；Described brake block is located between brake disc and brake electric magnetic coil, and this brake block can axially move；Described spring is located between brake block and back casing, and pushes brake block to brake disc；Described brake electric magnetic coil is provided with parallel winding and series connection winding；Described controller is provided with relay J 1, relay J 2 and controls button；Described relay J 1 and relay J 2 are all located in rear shell cover；Described control button is provided with stop key, lifting key and decline key；One end of described lifting key and the coil of relay J 1, one end of normally-closed contact J21 of relay J 2 are connected in series；One end of described decline key and the coil of relay J 2, one end of normally-closed contact J11 of relay J 1 are connected in series；One end of the other end of described lifting key, the other end of decline key and stop key is connected with each other, and the other end of stop key connects the positive pole of DC source；The other end of described normally-closed contact J21 and the other end of normally-closed contact J11 are all connected with the negative pole of DC source；The normally opened contact J12 of described lifting key and relay J 1 is connected in parallel；The normally opened contact J22 of described decline key and relay J 2 is connected in parallel；The positive pole of the positive pole of described power supply, the normally opened contact J13 of relay J 1, series connection winding and direct current generator is connected in series；The negative pole of the negative pole of described power supply, the normally opened contact J14 of relay J 1 and direct current generator is connected in series；The negative pole of the positive pole of described power supply, the normally opened contact J23 of relay J 2 and direct current generator is connected in series；The positive pole of the negative pole of described power supply, the normally opened contact J24 of relay J 2, series connection winding and direct current generator is connected in series；It is connected in parallel with parallel winding after described series connection winding and direct current generator series connection.
During work, such as rolling screen door to be opened, then press lifting key, the coil energized action of relay J 1, normally opened contact J12, J13, J14 close, normally-closed contact J11 disconnects, series connection winding, parallel winding and the direct current generator of brake electric magnetic coil all electric, direct current generator rotate forward start, when direct current generator just starts, its winding starting current is bigger, the electric current of winding of now connecting is the biggest, produces bigger electromagnetic force, adds the electromagnetic force of parallel winding, making brake block overcome the thrust of spring to separate with brake disc, door roller drives rolling screen door to open；After direct current generator starts, the electric current of its winding reduces rapidly, the electric current of winding of now connecting is also corresponding to be reduced rapidly, its electromagnetic force produced reduces the most rapidly, but the not change of the electric current of parallel winding, its electromagnetic force produced also is not changed in, and the electromagnetic force of parallel winding continues to the released state of brake block and brake disc plus the electromagnetic force that series connection winding diminishes；Because normally-closed contact J11 disconnects, even if now pressing decline key, the coil of relay J 2 can not obtain electric, and relay J 2 will not occur misoperation；After pressing stop key, the coil losing electricity of relay J 1, contact J12, J13, J14 recovery is normally opened, and contact J11 recovers normally closed, and direct current generator dead electricity shuts down, brake electric magnetic coil dead electricity, and door roller, by brake block pushing and withstanding brake disc, is braked by spring.In like manner, during rolling screen door to be closed, after pressing decline key, relay J 2 energized action, normally opened contact J22, J23, J24 close, and normally-closed contact J21 disconnects, and brake disc separates with brake block, direct current generator inverts because of both positive and negative polarity conversion, rolling screen door declines, equally, even if now pressing lifting key, the coil of relay J 1 can not obtain electric, and relay J 1 will not occur misoperation.
Preferably, described DC source is 24V.24V is conventional unidirectional current.
Preferably, described change speed gear box side is provided with stop；Described stop is provided with the first travel switch and the second travel switch；Described first travel switch and the coils connected in series of relay J 1；Described second travel switch and the coils connected in series of relay J 2.Arrange stop to be automatically stopped for making rolling screen door be raised or lowered to predetermined stop position.
Preferably, the coil reverse parallel connection of described relay J 1 has diode.Anti-parallel diodes plays the effect of decrease uptake inverse electromotive force.
Preferably, the coil reverse parallel connection of described relay J 2 has diode.Anti-parallel diodes plays the effect of decrease uptake inverse electromotive force.
The beneficial effects of the utility model are: brake electric magnetic coil is divided into parallel winding and series connection winding, it is provided that bigger electromagnetic force when the direct current generator of door roller starts, door roller can correspondingly reduce again electromagnetic force and maintain brake disc and the released state of brake block after starting, thus reduce the maintenance work electric current of brake electric magnetic coil, saves energy；Door roller control circuit only arranges two relays and just can play interlocked use, make relay will not misoperation, simply, expense is relatively low for circuit structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of brake gear of the present utility model.
Fig. 3 is circuit diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus protection domain of the present utility model is made apparent clear and definite defining.
As shown in FIG. 1 to 3, embodiment of the present utility model, including change speed gear box 1, direct current generator 2, back casing 3, rear shell cover 4 and controller；Described change speed gear box 1 front end is provided with mounting seat 5；It is provided with brake gear in described back casing 3；Described brake gear includes the brake disc 7 being fixed on unidirectional current arbor 6, be fixed on back casing 3 brake electric magnetic coil 8, brake block 9, spring 10；Described brake block 9 is located between brake disc 7 and brake electric magnetic coil 8, and this brake block 9 can axially move；Described spring 10 is located between brake block 9 and back casing 3, and pushes brake block 9 to brake disc 7；Described brake electric magnetic coil 8 is provided with parallel winding 11 and series connection winding 12；Described controller is provided with relay J 1, relay J 2 and controls button 13；Described relay J 1 and relay J 2 are all located in rear shell cover 4；Described control button 13 is provided with stop key 14, lifting key 15 and declines key 16；The normally-closed contact J21 of one end of described lifting key 15 and the coil 17 of relay J 1, relay J 2 is connected in series；The normally-closed contact J11 of one end of described decline key 16 and the coil 18 of relay J 2, relay J 1 is connected in series；One end of the other end of described lifting key 15, the other end of decline key 16 and stop key 14 is connected with each other, and the other end of stop key connects the positive pole of DC source；The other end of described normally-closed contact J21 and the other end of normally-closed contact J11 are all connected with the negative pole of DC source；The normally opened contact J12 of described lifting key 15 and relay J 1 is connected in parallel；The normally opened contact J22 of described decline key 16 and relay J 2 is connected in parallel；The positive pole of the positive pole of described power supply, the normally opened contact J13 of relay J 1, series connection winding 12 and direct current generator 2 is connected in series；The negative pole of the negative pole of described DC source, the normally opened contact J14 of relay J 1 and direct current generator 2 is connected in series；The negative pole of the positive pole of described power supply, the normally opened contact J23 of relay J 2 and direct current generator 2 is connected in series；The positive pole of the negative pole of described power supply, the normally opened contact J24 of relay J 2, series connection winding 12 and direct current generator 2 is connected in series；It is connected in parallel with parallel winding 11 after described series connection winding 12 and direct current generator 2 series connection.
During work, such as rolling screen door to be opened, then press lifting key 15, coil 17 energized action of relay J 1, normally opened contact J12, J13, J14 closes, normally-closed contact J11 disconnects, the series connection winding 12 of brake electric magnetic coil 8, parallel winding 11 and direct current generator 2 all electric, direct current generator 2 rotates forward and starts, when direct current generator 2 just starts, its winding starting current is bigger, now the electric current of series connection winding 12 is the biggest, produce bigger electromagnetic force, electromagnetic force plus parallel winding 11, brake block 9 is made to overcome the thrust of spring 10 and brake disc 7 to separate, door roller drives rolling screen door to open；After direct current generator 2 starts, the electric current of its winding reduces rapidly, now the electric current of series connection winding 12 is also corresponding reduces rapidly, its electromagnetic force produced reduces the most rapidly, but the not change of the electric current of parallel winding 11, its electromagnetic force produced also is not changed in, and the electromagnetic force that the electromagnetic force of parallel winding 11 diminishes plus series connection winding 12 continues to brake block 9 and the released state of brake disc 7；Because normally-closed contact J11 disconnects, even if now pressing decline key 16, the coil 18 of relay J 2 can not obtain electric, and relay J 2 will not occur misoperation；After pressing stop key 14, coil 17 dead electricity of relay J 1, contact J12, J13, J14 recover normally opened, contact J11 recovers normally closed, and direct current generator 2 dead electricity shuts down, brake electric magnetic coil 8 dead electricity, door roller, by brake block 9 pushing and withstanding brake disc 7, is braked by spring 10.In like manner, during rolling screen door to be closed, after pressing decline key 16, relay J 2 energized action, normally opened contact J22, J23, J24 close, normally-closed contact J21 disconnects, and brake disc 7 and brake block 9 separate, and direct current generator 2 inverts because of both positive and negative polarity conversion, rolling screen door declines, equally, even if the coil 17 now pressing lifting key 15 relay J 1 can not obtain electric, relay J 1 will not occur misoperation.
Preferably, described DC source is 24V.24V is conventional unidirectional current.
Preferably, described change speed gear box 1 side is provided with stop 19；Described stop 19 is provided with the first travel switch 20 and the second travel switch 21；The coil 17 of described first travel switch 20 and relay J 1 is connected；The coil 18 of described second travel switch 21 and relay J 2 is connected.Arrange stop to be automatically stopped for making rolling screen door be raised or lowered to predetermined stop position.
Preferably, the coil reverse parallel connection of described relay J 1 has diode 22.Anti-parallel diodes plays the effect of decrease uptake inverse electromotive force.
Preferably, the coil reverse parallel connection of described relay J 2 has diode 23.Anti-parallel diodes plays the effect of decrease uptake inverse electromotive force.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is not limited thereto, any change expected without creative work or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.
Claims (5)
1. a DC. rolling-door machine, including change speed gear box, direct current generator, back casing, rear shell cover and controller；Described change speed gear box front end is provided with mounting seat；It is provided with brake gear in described back casing；Described brake gear includes the brake disc being fixed on unidirectional current arbor, be fixed on back casing brake electric magnetic coil, brake block, spring；Described brake block is located between brake disc and brake electric magnetic coil, and this brake block can axially move；Described spring is located between brake block and back casing, and pushes brake block to brake disc；It is characterized in that: described brake electric magnetic coil is provided with parallel winding and series connection winding；Described controller is provided with relay J 1, relay J 2 and controls button；Described relay J 1 and relay J 2 are all located in rear shell cover；Described control button is provided with stop key, lifting key and decline key；One end of described lifting key and the coil of relay J 1, one end of normally-closed contact J21 of relay J 2 are connected in series；One end of described decline key and the coil of relay J 2, one end of normally-closed contact J11 of relay J 1 are connected in series；One end of the other end of described lifting key, the other end of decline key and stop key is connected with each other, and the other end of stop key connects the positive pole of DC source；The other end of described normally-closed contact J21 and the other end of normally-closed contact J11 are all connected with the negative pole of DC source；The normally opened contact J12 of described lifting key and relay J 1 is connected in parallel；The normally opened contact J22 of described decline key and relay J 2 is connected in parallel；The positive pole of the positive pole of described power supply, the normally opened contact J13 of relay J 1, series connection winding and direct current generator is connected in series；The negative pole of the negative pole of described power supply, the normally opened contact J14 of relay J 1 and direct current generator is connected in series；The negative pole of the positive pole of described power supply, the normally opened contact J23 of relay J 2 and direct current generator is connected in series；The positive pole of the negative pole of described power supply, the normally opened contact J24 of relay J 2, series connection winding and direct current generator is connected in series；It is connected in parallel with parallel winding after described series connection winding and direct current generator series connection.
A kind of DC. rolling-door machine the most according to claim 1, it is characterised in that: described DC source is 24V.
A kind of DC. rolling-door machine the most according to claim 1, it is characterised in that: described change speed gear box side is provided with stop；Described stop is provided with the first travel switch and the second travel switch；Described first travel switch and the coils connected in series of relay J 1；Described second travel switch and the coils connected in series of relay J 2.
A kind of DC. rolling-door machine the most according to claim 1, it is characterised in that: the coil reverse parallel connection of described relay J 1 has diode.
A kind of DC. rolling-door machine the most according to claim 1, it is characterised in that: the coil reverse parallel connection of described relay J 2 has diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620464283.XU CN205792016U (en) | 2016-05-21 | 2016-05-21 | A kind of DC. rolling-door machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620464283.XU CN205792016U (en) | 2016-05-21 | 2016-05-21 | A kind of DC. rolling-door machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205792016U true CN205792016U (en) | 2016-12-07 |
Family
ID=58117695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620464283.XU Expired - Fee Related CN205792016U (en) | 2016-05-21 | 2016-05-21 | A kind of DC. rolling-door machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205792016U (en) |
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2016
- 2016-05-21 CN CN201620464283.XU patent/CN205792016U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170521 |