CN2539332Y - Contactless integrated protector for electric coal drill - Google Patents
Contactless integrated protector for electric coal drill Download PDFInfo
- Publication number
- CN2539332Y CN2539332Y CN 02220494 CN02220494U CN2539332Y CN 2539332 Y CN2539332 Y CN 2539332Y CN 02220494 CN02220494 CN 02220494 CN 02220494 U CN02220494 U CN 02220494U CN 2539332 Y CN2539332 Y CN 2539332Y
- Authority
- CN
- China
- Prior art keywords
- gsr
- state relay
- solid
- circuit
- electric coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drilling And Boring (AREA)
Abstract
The utility model discloses an integrated protection unit for the electric coal drill, comprising a main circuit, a control circuit and a protection circuit. The utility model is characterized in that the main circuit adopts a three-phase solid state relay SRR as a power switch of the electric coal drill; and the control circuit and the protection circuit adopt a direct current solid state relay component GSR as a communication and execution element. The utility model has the advantages of no sparkle for the switch, safe and reliable working performance and long service life.
Description
The utility model belongs to the electric coal drill comprehensive protector.Be adapted to the Long-distance Control of electric coal drill especially.
The electric coal drill comprehensive protector of domestic production at present, the break-make of main circuit and control loop all adopts A.C. contactor and intermediate dc relay.In actual motion.Because the frequent starting of electric coal drill, the main circuit A.C. contactor, during the auxiliary relay break-make of control loop, the contact rebound produces spark, and mechanical oscillation cause the contact well damage, and rate of failure height, maintenance capacity are big.Simultaneously the operational environment of electric coal drill exists damps such as gas and coal dust, so the spark that is produced during connecting and disconnecting of the circuit, brings many hidden danger to safety in production.
The purpose of this utility model is at the existing problem of the above electric coal drill comprehensive protector, and the requirement for the function that satisfies the electric coal drill comprehensive protector provides a kind of contactless electric coal drill comprehensive protector.
The utility model is realized with following technical scheme: it is made up of main circuit, control circuit, protective circuit and power supply, it is characterized in that adopting in main circuit the mains switch of three-phase solid-state relay SRR as electric coal drill; Control circuit, protective circuit adopt dc solid-state relay assembly GSR as the contact executive component.The output of GSR (21,22) difference is button SK by experiment
2, the contact JR ' of thermal relay JR is connected with three-phase solid-state relay SRR, and the mains switch break-make of electric coal drill is tested button SK by the thermal relay JR that is connected between three-phase solid-state relay SRR and the dc solid-state relay assembly GSR
2And dc solid-state relay GSR assembly control.
Solid-state relay assembly GSR is by three identical dc solid-state relay GSR
1, GSR
2, GSR
3Connection forms, GSR
2Output and GSR
1Input be connected in series GSR
2Output and GSR
3Input be connected in parallel GSR
3(5,0), GSR
2(4,11), GSR
1(8), GSR
2(17) be respectively Lou, short circuit, control signal and power input, and respectively with control board on leakage earth signal contact 5 ', short-circuit signal contact 4 ', power cathode 11 ', control signal contact 8 ', power circuit contact 17 ' be connected, when control terminal (8) has the signal input, under the situation of circuit without any fault, solid-state relay GSR
1Conducting, three-phase solid-state relay SRR conducting, electric drill work, otherwise, GSR
1Turn-off, three phase relaies turn-off, and electric drill stops boring.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model electrical schematic diagram;
Fig. 2 is a solid-state relay assembly GSR connection diagram.
Be control circuit board in the dashed rectangle among Fig. 1, be prior art.
Circuit is under different operating states, and the working condition of GSR assembly is as follows:
Electric drill work: GSR
3Turn-off GSR
2Conducting GSR
1Conducting SRR conducting
Open circuit protection: GSR
2Disconnect GSR
1Disconnecting SRR shutoff electric drill stops
Leak ground protection: GSR
3Conducting GSR
2Disconnect GSR
1Disconnecting SRR shutoff electric drill stops
The utility model shell can be made with the steel plate welding, also can adopt working of plastics to make, and there are various display lamps and instrument in the front.
The utility model compare with existing electric coal drill comprehensive protector have as follows: main circuit has adopted three-phase solid to continue Electrical equipment has fundamentally been eliminated spark as the power switch of electric coal drill, and the work safety life-span is long, and a little repair.
Claims (3)
1, a kind of contactless electric coal drill comprehensive protector is made up of main circuit, control circuit, protective circuit and power supply etc., it is characterized in that:
(1) main circuit adopts the mains switch of three-phase solid-state relay SRR as electric coal drill;
(2) control circuit, protective circuit adopt dc solid-state relay assembly GSR as the contact executive component.
2, according to the described contactless electric coal drill comprehensive protector of claim 1, it is characterized in that the mains switch of main circuit electric coal drill adopts the three-phase solid-state relay, its break-make is tested button SK by thermal relay JR
2, dc solid-state relay GSR assembly control.
3, according to claim 1 or 2 described contactless electric coal drill comprehensive protectors, it is characterized in that: dc solid-state relay assembly GSR is by three identical dc solid-state relay GSR
1, GSR
2, GSR
3Connection combines, GSR
2Output and GSR
1Input be connected in series GSR
2Output and GSR
3Input be connected in parallel, the output of GSR (21,22) is button SK by experiment respectively
2, the contact JR ' of thermal relay JR is connected GSR with three-phase solid-state relay SRR
3(5,0), GSR
2(4,11), GSR
1(8), GSR
2(17) be respectively Lou short circuit, control signal and power input; When control terminal (8) has the signal input, under the situation of circuit without any fault, solid-state relay GSR
1Conducting, three-phase solid-state relay SRR conducting, electric drill work.Otherwise, GSR
1Turn-off, three-phase solid-state relay SRR turn-offs, and electric drill stops boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220494 CN2539332Y (en) | 2002-05-09 | 2002-05-09 | Contactless integrated protector for electric coal drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220494 CN2539332Y (en) | 2002-05-09 | 2002-05-09 | Contactless integrated protector for electric coal drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539332Y true CN2539332Y (en) | 2003-03-05 |
Family
ID=33698773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02220494 Expired - Fee Related CN2539332Y (en) | 2002-05-09 | 2002-05-09 | Contactless integrated protector for electric coal drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539332Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593788A (en) * | 2012-03-28 | 2012-07-18 | 桂林航天电子有限公司 | Short circuit/ overcurrent protection controller and operation method |
-
2002
- 2002-05-09 CN CN 02220494 patent/CN2539332Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593788A (en) * | 2012-03-28 | 2012-07-18 | 桂林航天电子有限公司 | Short circuit/ overcurrent protection controller and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |