CN204572636U - A kind of control device for hydraulic system - Google Patents
A kind of control device for hydraulic system Download PDFInfo
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- CN204572636U CN204572636U CN201520048208.0U CN201520048208U CN204572636U CN 204572636 U CN204572636 U CN 204572636U CN 201520048208 U CN201520048208 U CN 201520048208U CN 204572636 U CN204572636 U CN 204572636U
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- contactor
- button switch
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- normally opened
- hydraulic
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Abstract
The utility model discloses a kind of control device for hydraulic system, adopt circuit breaker, A.C. contactor, heat protector, push-button switch, auxiliary reclay, the conventional components and parts such as PLC and unloading electromagnetic valve form control device for hydraulic system, can realize controlling and remote auto control the on-site manual of hydraulic-pressure pump involved in hydraulic system and oil circulating pump simultaneously, under Non-follow control state, field personnel is according to field condition start and stop oil pump, condition automatic start-stop oil pump by presetting under automatic control state, for all oil pumps provide reliable overtemperature protection while to oil pump achieve effective control, structure is simple, safe and efficient.
Description
Technical field
The utility model belongs to control technique field, is specifically related to that a kind of structure is simple, easy to operate, control device for hydraulic system safely and effectively.
Background technique
Hydraulic station is the visual plant of control electrode lifting in LF refining furnace smelting process, and the supplementary equipment matched with hydraulic station is a lot, and wherein most important is exactly provide lifting drive to electrode and play the oil pump of lubrication.For realizing the reliable control to LF refining furnace electrode, higher requirement be it is also proposed to the control of oil pump.Be originally field personnel's manually-operable start and stop to the control of oil pump, staff is difficult to the actual conditions of the fuel tank recognized timely for oil pump feed, then takes positive counter-measure, therefore there is great production safety hidden danger, and impact is produced.Therefore need to provide a kind of and can realize the control device for hydraulic system that on-site manual controls and remote auto controls simultaneously, under the control of this control gear, make the operation of oil pump reliably safer.
Model utility content
The purpose of this utility model is to provide that a kind of structure is simple, easy to operate, control device for hydraulic system safely and effectively.
The purpose of this utility model is achieved in that and comprises circuit breaker, A.C. contactor, heat protector, push-button switch, auxiliary reclay, PLC and unloading electromagnetic valve;
Auxiliary reclay K1, its coil K1-1, its normally opened contact K1-2;
Auxiliary reclay K2, its coil K2-1, its normally opened contact K2-2;
Auxiliary reclay K3, its coil K3-1, its normally opened contact K3-2;
A.C. contactor KM1, its coil KM1-1, its normally opened contact KM1-2, its main contact KM1-3;
A.C. contactor KM2, its coil KM2-1, its normally opened contact KM2-2, its main contact KM2-3;
A.C. contactor KM3, its coil KM3-1, its normally opened contact KM3-2, its main contact KM3-3;
In hydraulic-pressure pump main circuit, in L1, L2, L3 circuit of three phase mains, the main contact KM1-3 of connecting breaker QM1, A.C. contactor KM1 is connected with hydraulic-pressure pump M1 with after heat protector FR1 successively; In L1, L2, L3 circuit of three phase mains, the main contact KM2-3 of connecting breaker QM2, A.C. contactor KM2 is connected with hydraulic-pressure pump M2 with after heat protector FR2 successively; In L1, L2, L3 circuit of three phase mains, the main contact KM3-3 of connecting breaker QM3, A.C. contactor KM3 is connected with oil circulating pump M3 with after heat protector FR3 successively;
Be connected with the end of incoming cables of circuit breaker FQ3 with circuit breaker FQ1, circuit breaker FQ2 respectively after the L1 circuit serial connection fus FU1 of three phase mains, the outlet terminal of circuit breaker FQ1 connects start button switch S B1, stop button switch S T1 successively and is connected with the N line of three phase mains with after the coil KM1-1 of A.C. contactor KM1, the two ends of start button switch S B1 are also connected to the normally opened contact K1-2 of auxiliary reclay K1, and the coil KM1-1 two ends of A.C. contactor KM1 are also connected to tutorial light HG1; The outlet terminal of circuit breaker FQ2 connects start button switch S B2, stop button switch S T2 successively and is connected with the N line of three phase mains with after the coil KM2-1 of A.C. contactor KM2, the two ends of start button switch S B2 are also connected to the normally opened contact K2-2 of auxiliary reclay K2, and the coil KM2-1 two ends of A.C. contactor KM2 are also connected to tutorial light HG2; The outlet terminal of circuit breaker FQ3 connects start button switch S B3, stop button switch S T3 successively and is connected with the N line of three phase mains with after the coil KM3-1 of A.C. contactor KM3, the two ends of start button switch S B3 are also connected to the normally opened contact K3-2 of auxiliary reclay K3, and the coil KM3-1 two ends of A.C. contactor KM3 are also connected to tutorial light HG3;
In Pump Control circuit, in the oil level signal that the oil temperature signal that the normally opened contact KM1-2 of start button switch S B1, stop button switch S T1, start button switch S B2, stop button switch S T2, start button switch S B3, stop button switch S T3, A.C. contactor KM1, the normally opened contact KM2-2 of A.C. contactor KM2, the normally opened contact KM3-2 of A.C. contactor KM3, temperature transducer detect, level meter detect and the oil that Filter Examination instrument detects, impurity signal is as the input signal of PLC; Described PLC connects the coil K1-1 of auxiliary reclay K1, the coil K2-1 of auxiliary reclay K2, coil K3-1, the unloading electromagnetic valve DK1 of auxiliary reclay K3, unloading electromagnetic valve DK2 and unloading electromagnetic valve DK3 respectively as output.
The utility model adopts circuit breaker, A.C. contactor, heat protector, push-button switch, auxiliary reclay, the conventional components and parts such as PLC and unloading electromagnetic valve form control device for hydraulic system, can realize controlling and remote auto control the on-site manual of hydraulic-pressure pump involved in hydraulic system and oil circulating pump simultaneously, under Non-follow control state, field personnel is according to field condition start and stop oil pump, condition automatic start-stop oil pump by presetting under automatic control state, for all oil pumps provide reliable overtemperature protection while to oil pump achieve effective control, structure is simple, easy to operate, safe and efficient.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of hydraulic-pressure pump main circuit in the utility model.
Fig. 2 is the schematic diagram of Pump Control circuit in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but limited the utility model never in any form, based on any conversion that the utility model training centre is done, all falls into the utility model protection domain.
As shown in Figure 1-2, the utility model comprises circuit breaker, A.C. contactor, heat protector, push-button switch, auxiliary reclay, PLC and unloading electromagnetic valve;
Auxiliary reclay K1, its coil K1-1, its normally opened contact K1-2;
Auxiliary reclay K2, its coil K2-1, its normally opened contact K2-2;
Auxiliary reclay K3, its coil K3-1, its normally opened contact K3-2;
A.C. contactor KM1, its coil KM1-1, its normally opened contact KM1-2, its main contact KM1-3;
A.C. contactor KM2, its coil KM2-1, its normally opened contact KM2-2, its main contact KM2-3;
A.C. contactor KM3, its coil KM3-1, its normally opened contact KM3-2, its main contact KM3-3;
In hydraulic-pressure pump main circuit, in L1, L2, L3 circuit of three phase mains, the main contact KM1-3 of connecting breaker QM1, A.C. contactor KM1 is connected with hydraulic-pressure pump M1 with after heat protector FR1 successively; In L1, L2, L3 circuit of three phase mains, the main contact KM2-3 of connecting breaker QM2, A.C. contactor KM2 is connected with hydraulic-pressure pump M2 with after heat protector FR2 successively; In L1, L2, L3 circuit of three phase mains, the main contact KM3-3 of connecting breaker QM3, A.C. contactor KM3 is connected with oil circulating pump M3 with after heat protector FR3 successively;
Be connected with the end of incoming cables of circuit breaker FQ3 with circuit breaker FQ1, circuit breaker FQ2 respectively after the L1 circuit serial connection fus FU1 of three phase mains, the outlet terminal of circuit breaker FQ1 connects start button switch S B1, stop button switch S T1 successively and is connected with the N line of three phase mains with after the coil KM1-1 of A.C. contactor KM1, the two ends of start button switch S B1 are also connected to the normally opened contact K1-2 of auxiliary reclay K1, and the coil KM1-1 two ends of A.C. contactor KM1 are also connected to tutorial light HG1; The outlet terminal of circuit breaker FQ2 connects start button switch S B2, stop button switch S T2 successively and is connected with the N line of three phase mains with after the coil KM2-1 of A.C. contactor KM2, the two ends of start button switch S B2 are also connected to the normally opened contact K2-2 of auxiliary reclay K2, and the coil KM2-1 two ends of A.C. contactor KM2 are also connected to tutorial light HG2; The outlet terminal of circuit breaker FQ3 connects start button switch S B3, stop button switch S T3 successively and is connected with the N line of three phase mains with after the coil KM3-1 of A.C. contactor KM3, the two ends of start button switch S B3 are also connected to the normally opened contact K3-2 of auxiliary reclay K3, and the coil KM3-1 two ends of A.C. contactor KM3 are also connected to tutorial light HG3;
In Pump Control circuit, in the oil level signal that the oil temperature signal that the normally opened contact KM1-2 of start button switch S B1, stop button switch S T1, start button switch S B2, stop button switch S T2, start button switch S B3, stop button switch S T3, A.C. contactor KM1, the normally opened contact KM2-2 of A.C. contactor KM2, the normally opened contact KM3-2 of A.C. contactor KM3, temperature transducer detect, level meter detect and the oil that Filter Examination instrument detects, impurity signal is as the input signal of PLC; Described PLC connects the coil K1-1 of auxiliary reclay K1, the coil K2-1 of auxiliary reclay K2, coil K3-1, the unloading electromagnetic valve DK1 of auxiliary reclay K3, unloading electromagnetic valve DK2 and unloading electromagnetic valve DK3 respectively as output.
Described hydraulic-pressure pump M1, hydraulic-pressure pump M2 and oil circulating pump M3 share a fuel tank.
Described temperature transducer, level meter and Filter Examination instrument are all arranged in the fuel tank of hydraulic system.
Described unloading electromagnetic valve DK1 is arranged on the oil cylinder of hydraulic-pressure pump M1, and described unloading electromagnetic valve DK2 is arranged on the oil cylinder of hydraulic-pressure pump M2, and described unloading electromagnetic valve DK3 is arranged on the oil cylinder of oil circulating pump M3.
The electric elements that the technical solution of the utility model adopts all can obtain from the market, and the establishment of the control program wherein stored in PLC belongs to prior art to one skilled in the art.
working principle of the present utility model and working procedure:
The utility model adopts the three-phase alternating-current supply of 380V to be that control device for hydraulic system is powered, wherein L1, L2, L3 is live wire, N is zero line, close circuit breaker QM1, QM2, QM3, FQ1, FQ2, after FQ3, at the scene under Non-follow control state, after field personnel closes start button switch S B1 and SB2, A.C. contactor KM1 and A.C. contactor KM2 all must conduct, the unloading electromagnetic valve DK2 conducting being arranged at the unloading electromagnetic valve DK1 on the oil cylinder of hydraulic-pressure pump M1 and being arranged on the oil cylinder of hydraulic-pressure pump M2, hydraulic-pressure pump M1 and hydraulic-pressure pump M2 brings into operation, drive electrode is elevated, by being arranged at the temperature transducer Real-Time Monitoring oil temperature in fuel tank, when the oil temperature monitored is higher than 45 DEG C, closed start button switch S B3, A.C. contactor KM3 must conduct, be arranged at the unloading electromagnetic valve DK3 conducting on the oil cylinder of oil circulating pump M3, oil circulating pump M3 brings into operation, and lowers the temperature to the oil in fuel tank, if cooling effectively, then hydraulic-pressure pump M1 and M2 continues to run, invalid if lower the temperature, when the oil temperature in fuel tank continues to be elevated to 50 DEG C, hydraulic-pressure pump M1 and M2 is out of service, under remote auto state of a control, be arranged at the temperature transducer in fuel tank, level meter and Filter Examination instrument by the Signal transmissions that collects from fuel tank to PLC, trigger PLC and perform good program prepared in advance, PLC output signal makes auxiliary reclay K1, K2 and unloading electromagnetic valve DK1, DK2 to conduct, A.C. contactor KM1, KM2 must be conducted, hydraulic-pressure pump M1 and hydraulic-pressure pump M2 brings into operation, and drive electrode is elevated, when the temperature that temperature transducer collects is higher than 45 DEG C, triggering PLC output signal makes auxiliary reclay K3 and unloading electromagnetic valve DK3 to conduct, A.C. contactor KM3 must be conducted, oil circulating pump M3 brings into operation, start to lower the temperature to the oil in fuel tank, when oil temperature is lower than 35 DEG C, PLC output signal makes auxiliary reclay K3 and unloading electromagnetic valve DK3 dead electricity, A.C. contactor KM3 dead electricity is disconnected, oil circulating pump M3 is out of service, stop lowering the temperature to the oil in fuel tank, when cooling was lost efficacy, when oil temperature continues to be elevated to 50 DEG C, PLC output signal makes auxiliary reclay K1, K2, K3 and unloading electromagnetic valve DK1, DK2, DK3 dead electricity, thus make A.C. contactor KM1, KM2, KM3 dead electricity disconnects, hydraulic-pressure pump M1, hydraulic-pressure pump M2 and oil circulating pump M3 is out of service, automatic primer fluid oil-pressing pump after the oil cooling in fuel tank.
The utility model adopts circuit breaker, A.C. contactor, heat protector, push-button switch, auxiliary reclay, the conventional components and parts such as PLC and unloading electromagnetic valve form control device for hydraulic system, can realize controlling and remote auto control the on-site manual of hydraulic-pressure pump involved in hydraulic system and oil circulating pump simultaneously, under Non-follow control state, field personnel is according to field condition start and stop oil pump, condition automatic start-stop oil pump by presetting under automatic control state, for all oil pumps provide reliable overtemperature protection while to oil pump achieve effective control, structure is simple, safe and efficient.
Claims (4)
1. a control device for hydraulic system, comprises circuit breaker, A.C. contactor, heat protector, push-button switch, auxiliary reclay, PLC and unloading electromagnetic valve;
Auxiliary reclay K1, its coil K1-1, its normally opened contact K1-2;
Auxiliary reclay K2, its coil K2-1, its normally opened contact K2-2;
Auxiliary reclay K3, its coil K3-1, its normally opened contact K3-2;
A.C. contactor KM1, its coil KM1-1, its normally opened contact KM1-2, its main contact KM1-3;
A.C. contactor KM2, its coil KM2-1, its normally opened contact KM2-2, its main contact KM2-3;
A.C. contactor KM3, its coil KM3-1, its normally opened contact KM3-2, its main contact KM3-3;
It is characterized in that: in hydraulic-pressure pump main circuit, in L1, L2, L3 circuit of three phase mains, the main contact KM1-3 of connecting breaker QM1, A.C. contactor KM1 is connected with hydraulic-pressure pump M1 with after heat protector FR1 successively; In L1, L2, L3 circuit of three phase mains, the main contact KM2-3 of connecting breaker QM2, A.C. contactor KM2 is connected with hydraulic-pressure pump M2 with after heat protector FR2 successively; In L1, L2, L3 circuit of three phase mains, the main contact KM3-3 of connecting breaker QM3, A.C. contactor KM3 is connected with oil circulating pump M3 with after heat protector FR3 successively;
Be connected with the end of incoming cables of circuit breaker FQ3 with circuit breaker FQ1, circuit breaker FQ2 respectively after the L1 circuit serial connection fus FU1 of three phase mains, the outlet terminal of circuit breaker FQ1 connects start button switch S B1, stop button switch S T1 successively and is connected with the N line of three phase mains with after the coil KM1-1 of A.C. contactor KM1, the two ends of start button switch S B1 are also connected to the normally opened contact K1-2 of auxiliary reclay K1, and the coil KM1-1 two ends of A.C. contactor KM1 are also connected to tutorial light HG1; The outlet terminal of circuit breaker FQ2 connects start button switch S B2, stop button switch S T2 successively and is connected with the N line of three phase mains with after the coil KM2-1 of A.C. contactor KM2, the two ends of start button switch S B2 are also connected to the normally opened contact K2-2 of auxiliary reclay K2, and the coil KM2-1 two ends of A.C. contactor KM2 are also connected to tutorial light HG2; The outlet terminal of circuit breaker FQ3 connects start button switch S B3, stop button switch S T3 successively and is connected with the N line of three phase mains with after the coil KM3-1 of A.C. contactor KM3, the two ends of start button switch S B3 are also connected to the normally opened contact K3-2 of auxiliary reclay K3, and the coil KM3-1 two ends of A.C. contactor KM3 are also connected to tutorial light HG3;
In Pump Control circuit, in the oil level signal that the oil temperature signal that the normally opened contact KM1-2 of start button switch S B1, stop button switch S T1, start button switch S B2, stop button switch S T2, start button switch S B3, stop button switch S T3, A.C. contactor KM1, the normally opened contact KM2-2 of A.C. contactor KM2, the normally opened contact KM3-2 of A.C. contactor KM3, temperature transducer detect, level meter detect and the oil that Filter Examination instrument detects, impurity signal is as the input signal of PLC; Described PLC connects the coil K1-1 of auxiliary reclay K1, the coil K2-1 of auxiliary reclay K2, coil K3-1, the unloading electromagnetic valve DK1 of auxiliary reclay K3, unloading electromagnetic valve DK2 and unloading electromagnetic valve DK3 respectively as output.
2. control device for hydraulic system according to claim 1, is characterized in that described hydraulic-pressure pump M1, hydraulic-pressure pump M2 and oil circulating pump M3 share a fuel tank.
3. control device for hydraulic system according to claim 2, is characterized in that described temperature transducer, level meter and Filter Examination instrument are all arranged in the fuel tank of hydraulic system.
4. control device for hydraulic system according to claim 1, it is characterized in that described unloading electromagnetic valve DK1 is arranged on the oil cylinder of hydraulic-pressure pump M1, described unloading electromagnetic valve DK2 is arranged on the oil cylinder of hydraulic-pressure pump M2, and described unloading electromagnetic valve DK3 is arranged on the oil cylinder of oil circulating pump M3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048208.0U CN204572636U (en) | 2015-01-24 | 2015-01-24 | A kind of control device for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048208.0U CN204572636U (en) | 2015-01-24 | 2015-01-24 | A kind of control device for hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572636U true CN204572636U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520048208.0U Expired - Fee Related CN204572636U (en) | 2015-01-24 | 2015-01-24 | A kind of control device for hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572636U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257630A (en) * | 2015-11-28 | 2016-01-20 | 南通华夏飞机工程技术股份有限公司 | Hydraulic test vehicle with overheat protection function |
| CN105731350A (en) * | 2016-03-30 | 2016-07-06 | 江西清华泰豪三波电机有限公司 | Refueling control system and method for refueling pump of fuel tank of power station |
| CN115162455A (en) * | 2021-04-02 | 2022-10-11 | 襄阳忠良工程机械有限责任公司 | Wired remote intelligent control excavation type loader |
-
2015
- 2015-01-24 CN CN201520048208.0U patent/CN204572636U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257630A (en) * | 2015-11-28 | 2016-01-20 | 南通华夏飞机工程技术股份有限公司 | Hydraulic test vehicle with overheat protection function |
| CN105731350A (en) * | 2016-03-30 | 2016-07-06 | 江西清华泰豪三波电机有限公司 | Refueling control system and method for refueling pump of fuel tank of power station |
| CN105731350B (en) * | 2016-03-30 | 2018-02-16 | 江西清华泰豪三波电机有限公司 | A kind of fuel tank gasoline pump refueling control method in power station |
| CN115162455A (en) * | 2021-04-02 | 2022-10-11 | 襄阳忠良工程机械有限责任公司 | Wired remote intelligent control excavation type loader |
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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: 20150819 Termination date: 20190124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |