CN205064160U - Agricultural machinery starting protection control system - Google Patents
Agricultural machinery starting protection control system Download PDFInfo
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- CN205064160U CN205064160U CN201520816635.9U CN201520816635U CN205064160U CN 205064160 U CN205064160 U CN 205064160U CN 201520816635 U CN201520816635 U CN 201520816635U CN 205064160 U CN205064160 U CN 205064160U
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- protection circuit
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Abstract
Agricultural machinery starting protection control system, including ignition key switch, an electric generator, the battery, the time delay starter, electromagnetism starting switch and motor, the time delay starter is by the time -delayed protection circuit that has time delay function more than two sections, starting protection circuit and electronic switch constitute, the time -delayed protection circuit is connected with ignition key switch, the starting protection circuit is connected with the neutral point electric output end of generator, electronic switch and time -delayed protection circuit, the starting protection circuit, the DC 12V24V end of battery, electromagnetism starting switch's control end is connected. Utilize the utility model discloses, the key switch that can avoid igniteing contact can not in time be broken off and cause that the motor starts for a long time, the long -time big current discharge of battery, and frequent the start -up causes motor, battery overheated in can avoiding in short -term, can avoid the normal back of engine start, and ignition key switch is by maloperation actuating motor once more.
Description
Technical field
The utility model relates to a kind of farm machinery starting protection control system.
Background technique
Current agricultural machinery is if rotary cultivator is in the process started, generally control starting relay by ignition key switch, carry out actuating motor (or claiming Starter) by starting relay control electromagnetic starting switch again and drive motor and generator, or directly directly controlling electromagnetic starting switch with ignition key switch carrys out actuating motor, the operating current of actuating motor is maximum reaches 200A, when ignition key switch clamping stagnation does not reset, or ignition key switch contact adhesion, or operator presses ignition key switch for a long time, starting relay cannot be disconnected in time, motor, storage battery will pass to big current for a long time, long-time sustained overload work, can cause reduce or cause it to damage their working life.
Motor wants the control time from starting to normal operation, needs during this period of time to control, in about 6 seconds, if overtime, may shorten motor and the life of storage battery or damage them.
CN204480962U discloses a kind of automobile delayed startup relay and protects for automobile starting, this protected-type only has one section of delay protection, start-up time delay can be controlled and be no more than set time, but may occur on agricultural machinery, situation about starting again or is repeatedly continued immediately after once only having one section of delayed startup motor unsuccessful, front and back time start not free restriction, in short time, repeatedly actuating motor can make storage battery repeatedly heavy-current discharge, repeatedly make ignition key switch, starting relay (or electromagnetic starting switch) transships break-make, minimizing their working life can be made.
After motor normally starts, likely there is misoperation ignition key switch in agricultural machinery, again the situation of actuating motor, causes starting mechanism to damage.
Therefore, a kind of new Protection control system of market demand and method protect agricultural machinery to start.
Model utility content
Technical problem to be solved in the utility model is; a kind of agricultural machinery starting protection control system is provided; this system is after each first paragraph delayed startup protection; must time delay a period of time could open ignition key switch again again; limit the time lag of twice actuating motor; avoid frequent starting in short-term to cause motor, storage battery overheated, reach the object of protection motor and storage battery.
The utility model solves the technological scheme that its technical problem adopts: agricultural machinery starting protection control system, comprise ignition key switch, generator, storage battery, delayed startup device, electromagnetic starting switch and motor, described delayed startup device is by the delay protection circuit with more than two sections delay functions, starting protection circuit and electronic switch composition, described delay protection circuit is connected with ignition key switch, described starting protection circuit is connected with the neutral point electrical signal of generator, described electronic switch and delay protection circuit, starting protection circuit, the DC12V/24V end of storage battery, the control end of electromagnetic starting switch connects, described electromagnetic starting switch and storage battery, motor connects.
Further; the delay protection circuit of delayed startup device is the delay protection circuit with two sections of delay functions; by resistance R1, R2, R3; electric capacity C1, C2; chip U1 forms; wherein; resistance R1 and electric capacity C1 determines first paragraph delay duration, and resistance R2 and electric capacity C2 determines second segment delay duration, after the P2 pin input igniting actuating signal of chip U1; the P6 pin of chip U1 exports control signal; control electronic switch is connected, after first paragraph time delay terminates, when namely second segment time delay starts; the P6 pin of closing chip U1 exports control signal, controls electronic switch and disconnects.
Further; the starting protection circuit of delayed startup device is by diode D1; resistance R4, R5; chip U2 forms; after the neutral point electrical signal voltage of the generator inputted by diode D1 is greater than the voltage arranged by resistance R4, R5; the P5 pin of chip U2 exports control signal, controls electronic switch and disconnects.
The method utilizing described system to carry out the control of agricultural machinery starting protection is: between ignition key switch and electromagnetic starting switch, adopt 1 delayed startup device, this delayed startup device is by the delay protection circuit with more than two sections delay functions, starting protection circuit and electronic switch composition, wherein, delay protection circuit is connected with ignition key switch, starting protection circuit is connected with the neutral point electrical signal of generator, electronic switch and delay protection circuit, starting protection circuit, the DC12V/24V end of storage battery, the control end of electromagnetic starting switch connects, electromagnetic starting switch and storage battery, motor connects,
Delayed startup device receives the actuating signal of ignition key switch, namely first paragraph clocking capability is started, send control voltage to electromagnetic starting switch simultaneously, actuating motor, after first paragraph time delay, as motor does not start, ignition key switch clamping stagnation does not reset, delayed startup device is by positive closing start-up performance, ignition key switch loses start-up performance, and simultaneously delayed startup device starts second segment timing delay function, in the meantime can not ato unit, after second segment delay time arrives, can again start;
After engine start is normal, starting protection circuit receives generator neutral point voltage signal, and control electronic switch and disconnect, ignition key switch loses start-up performance, can avoid misoperation.
The utility model ignition key switch controls delayed startup device, and inrush current is little, not easily occurs contact sintering adhesion situation; Starting relay is cancelled and uses the electronic switch be built in delayed startup device instead, contactless, without starting relay contact sintering situation.
Utilize the utility model; ignition key switch contact can be avoided not disconnect in time cause motor to start for a long time, the long-time heavy-current discharge of storage battery; frequent starting in short-term can be avoided to cause motor, storage battery overheated; after engine start can be avoided normal; ignition key switch is misused actuating motor again, reaches protection motor and storage battery object.
The utility model is applicable to the starting protection of farm machinery, is also applicable to same other machinery protection required.
Accompanying drawing explanation
Fig. 1 is the control block diagram of the agricultural machinery starting protection control system embodiment of the utility model;
Fig. 2 is the delay protection circuit figure of delayed startup device embodiment illustrated in fig. 1;
Fig. 3 is the starting protection circuit diagram of delayed startup device embodiment illustrated in fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to Fig. 1, the agricultural machinery starting protection control system of the present embodiment, comprises ignition key switch 1, generator 2, storage battery 3, delayed startup device 4, electromagnetic starting switch 5 and motor 6; Described delayed startup device 4 forms by having the delay protection circuit of two sections of delay functions, starting protection circuit and electronic switch; described delay protection circuit is connected with ignition key switch 1; described starting protection circuit is connected with the neutral point electrical signal of generator 2; described electronic switch is held with the DC12V/24V of delay protection circuit, starting protection circuit, storage battery 3, the control end of electromagnetic starting switch 5 is connected, and described electromagnetic starting switch 5 is connected with storage battery 3, motor 6.
In the present embodiment; the delay protection circuit of delayed startup device 4; as shown in Figure 2; by resistance R1, R2, R3; electric capacity C1, C2; chip U1 forms, and wherein, resistance R1 and electric capacity C1 determines first paragraph delay duration; resistance R2 and electric capacity C2 determines second segment delay duration; after the P2 pin input igniting actuating signal of chip U1, the P6 pin of chip U1 exports control signal, controls electronic switch and connects; after first paragraph time delay terminates; namely when second segment time delay starts, the P6 pin of closing chip U1 exports control signal, controls electronic switch and disconnects.
In the present embodiment; the starting protection circuit of delayed startup device 4; as shown in Figure 3; by diode D1; resistance R4, R5, chip U2 forms, after the neutral point electrical signal voltage of the generator inputted by diode D1 is greater than the voltage arranged by resistance R4, R5; the P5 pin of chip U2 exports control signal, controls electronic switch and disconnects.
In the built-in delayed startup device 4 of electronic switch, switching point is connected with electromagnetic starting switch 5, controls electromagnetic starting switch 5 break-make.
In the present embodiment, described ignition key switch 1 is used for manually sending startup control signal to delayed startup device, can automatically reset.Described storage battery 3 provides operating voltage to delayed startup device 4 and motor 6.Described generator 2 is by driven by engine.Described electromagnetic starting switch 5 is connected with motor, controls motor start-up.Described motor 6 is electrically connected by electromagnetic starting switch 5 and storage battery 3, to be powered startups by storage battery 3, drive engine start.
In the present embodiment, described generator 2 provides neutral point voltage signal to delayed startup device 4, to judge whether motor starts, when after engine start, generator 2 is driven and can sends neutral point voltage signal to delayed startup device 4, and delayed startup device 4 will not accept the startup control signal of ignition key switch, otherwise motor does not start, generator sends without neutral point voltage signal, and the startup control signal of delayed startup device 4 acceptable point fire key operation, starts again.
Its controlling method is: between ignition key switch 1 and electromagnetic starting switch 5, adopt 1 delayed startup device 4, this delayed startup device 4 is by the delay protection circuit with two sections of delay functions, starting protection circuit and electronic switch composition, wherein, delay protection circuit is connected with ignition key switch 1, starting protection circuit is connected with the neutral point electrical signal of generator 2, electronic switch and delay protection circuit, starting protection circuit, the DC12V/24V end of storage battery 3, the control end of electromagnetic starting switch 5 connects, electromagnetic starting switch 5 and storage battery 3, motor 6 connects,
Delayed startup device 4 receives the actuating signal of ignition key switch 1, namely first paragraph clocking capability is started, send control voltage to electromagnetic starting switch simultaneously, actuating motor 6, after first paragraph time delay, as motor does not start, ignition key switch 1 clamping stagnation does not reset, delayed startup device 4 is by positive closing start-up performance, ignition key switch 1 loses start-up performance, and simultaneously delayed startup device 4 starts second segment timing delay function, in the meantime can not ato unit, after second segment delay time arrives, can again start;
After engine start is normal, starting protection circuit receives generator 2 neutral point voltage signal, and control electronic switch and disconnect, ignition key switch 1 loses start-up performance, can avoid misoperation.
Claims (3)
1. an agricultural machinery starting protection control system, comprise ignition key switch, generator, storage battery, electromagnetic starting switch and motor, it is characterized in that: be also provided with delayed startup device, described delayed startup device is by the delay protection circuit with more than two sections delay functions, starting protection circuit and electronic switch composition, described delay protection circuit is connected with ignition key switch, described starting protection circuit is connected with the neutral point electrical signal of generator, described electronic switch and delay protection circuit, starting protection circuit, the DC12V/24V end of storage battery, the control end of electromagnetic starting switch connects, described electromagnetic starting switch and storage battery, motor connects.
2. agricultural machinery starting protection control system according to claim 1, it is characterized in that: the delay protection circuit of delayed startup device is the delay protection circuit with two sections of delay functions, by resistance R1, R2, R3, electric capacity C1, C2, chip U1 forms, wherein, resistance R1 and electric capacity C1 determines first paragraph delay duration, resistance R2 and electric capacity C2 determines second segment delay duration, after the P2 pin input igniting actuating signal of chip U1, the P6 pin of chip U1 exports control signal, control electronic switch is connected, after first paragraph time delay terminates, namely when second segment time delay starts, the P6 pin of closing chip U1 exports control signal, control electronic switch disconnects.
3. agricultural machinery starting protection control system according to claim 2; it is characterized in that: the starting protection circuit of delayed startup device is by diode D1; resistance R4, R5; chip U2 forms; after the neutral point electrical signal voltage of the generator inputted by D1 is greater than the voltage arranged by resistance R4, R5; the P5 pin of chip U2 exports control signal, controls electronic switch and disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520816635.9U CN205064160U (en) | 2015-10-22 | 2015-10-22 | Agricultural machinery starting protection control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520816635.9U CN205064160U (en) | 2015-10-22 | 2015-10-22 | Agricultural machinery starting protection control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064160U true CN205064160U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520816635.9U Expired - Fee Related CN205064160U (en) | 2015-10-22 | 2015-10-22 | Agricultural machinery starting protection control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064160U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134442A (en) * | 2015-10-22 | 2015-12-09 | 李惠远 | Farm machine start intelligent protection control system and method |
| CN107387287A (en) * | 2017-08-01 | 2017-11-24 | 河南满守忠汽车配件有限公司 | A kind of automotive starter protection circuit |
| CN117627797A (en) * | 2023-11-06 | 2024-03-01 | 上海联适导航技术股份有限公司 | Flameout circuit and flameout method for agricultural machinery when meeting resistance |
-
2015
- 2015-10-22 CN CN201520816635.9U patent/CN205064160U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134442A (en) * | 2015-10-22 | 2015-12-09 | 李惠远 | Farm machine start intelligent protection control system and method |
| CN107387287A (en) * | 2017-08-01 | 2017-11-24 | 河南满守忠汽车配件有限公司 | A kind of automotive starter protection circuit |
| CN117627797A (en) * | 2023-11-06 | 2024-03-01 | 上海联适导航技术股份有限公司 | Flameout circuit and flameout method for agricultural machinery when meeting resistance |
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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 |
Granted publication date: 20160302 Termination date: 20171022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |