CN103982765A - Oil pump switching device for oil station of mill - Google Patents
Oil pump switching device for oil station of mill Download PDFInfo
- Publication number
- CN103982765A CN103982765A CN201410174286.5A CN201410174286A CN103982765A CN 103982765 A CN103982765 A CN 103982765A CN 201410174286 A CN201410174286 A CN 201410174286A CN 103982765 A CN103982765 A CN 103982765A
- Authority
- CN
- China
- Prior art keywords
- low pressure
- pressure fuel
- pump
- fuel pump
- motor
- 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.)
- Pending
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses an oil pump switching device for an oil station of a mill. The oil pump switching device comprises a No. 1 low-pressure oil pump and a No. 2 low-pressure oil pump which are controlled through control loops, a main pump selection switch SA1 and two time relays KT1 and KT2, wherein the two pairs of contacts of the SA1 are used for controlling the KT1 and the KT2 respectively; the power-off delay normally-open contacts of the KT1 and the KT2 are connected to the control loops of the No. 1 low-pressure oil pump and the No. 2 low-pressure oil pump respectively; when the SA1 is switched, the No. 2 low-pressure oil pump or the No. 1 low-pressure pump is started firstly under the running condition of the No. 1 low-pressure oil pump or the No. 2 low-pressure pump, and the running No. 1 low-pressure oil pump or the running No. 2 low-pressure pump stops automatically after power-off delay time is reached. A standby pump is started firstly through the selection switch under the running condition of a main pump, and a main pump motor stops running automatically when the power-off delay time of the KT1 is reached, so that the main pump can be overhauled without stopping the mill, and normal production is ensured. The oil pump switching device is simple in structure, stable in performance, and high in reliability.
Description
Technical field
The present invention relates to a kind of grinding machine petrol station oil pump COMM communication, belong to field of mechanical technique.
Background technique
In the running, the bearing of feeding and discharging end at every moment all needs lubricant oil to be lubricated it to grinding machine, and general grinding machine petrol station has two low pressure fuel pumps, the using and the reserved, in the time that needs carry out maintenance repair to main pump, must first stop grinding machine, then stop main pump, restart stand by pump, finally start grinding machine.Therefore,, in the time of maintenance main pump, grinding machine all will stop, and has affected normal production.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, and a kind of stable performance, reliability grinding machine petrol station oil pump COMM communication high, simple in structure are provided.
For solving this technical problem, the invention provides a kind of grinding machine petrol station oil pump COMM communication, comprise a low pressure fuel pump and No. two low pressure fuel pumps, a described low pressure fuel pump and No. two low pressure fuel pumps are by control loop control, described COMM communication comprises a main pump selector switch SA1 and two time relay KT1 and KT2, two time relay KT1 and KT2 are controlled respectively in two pairs of contacts of described main pump selector switch SA1, the normally opened contact of the power cut off delay of described time relay KT1 and time relay KT2 is connected respectively in the control loop of a low pressure fuel pump and No. two low pressure fuel pumps, in the time stirring main pump selector switch SA1, the in the situation that of a low pressure fuel pump or No. two low pressure fuel pump operations, first start No. two low pressure fuel pumps or a low pressure fuel pump, the power cut off delay time stops automatically to a low pressure fuel pump or No. two low pressure fuel pumps of rear operation.
The control loop of a described low pressure fuel pump comprises time relay KT1, the stop button SB1, start button SB2, motor breaking device QF2 and the motor A.C. contactor KM1 that connect successively, time relay KT1 connects main pump selector switch SA1 by L01 line, and motor A.C. contactor KM1 is connected with a low pressure fuel pump motor M 1.
The control loop of described No. two low pressure fuel pumps comprises time relay KT2, the stop button SB3, start button SB4, motor breaking device QF3 and the motor A.C. contactor KM2 that connect successively, time relay KT2 connects main pump selector switch SA1 by L01 line, and motor A.C. contactor KM2 is connected with No. two low pressure fuel pump motor M 2.
Described COMM communication also comprises main breaker QF1 and AC220V control loop circuit breaker Q F4, and main breaker QF1 and AC220V control loop circuit breaker Q F4 are connected the control loop of a low pressure fuel pump and No. two low pressure fuel pumps by L01 line.
Beneficial effect: the present invention can be in the situation that main pump moves, first start stand by pump by selector switch, the time relay KT1 power cut off delay time that is arranged on main pump control loop is moved to the rear main pump motor that automatically stops, therefore, when maintenance main pump, do not need to stop grinding machine, ensured normal production, have advantages of that simple in structure, stable performance, reliability are high.
Brief description of the drawings
Fig. 1 is major loop schematic diagram of the present invention;
Fig. 2 is control loop schematic diagram of the present invention.
In figure: QF1: main breaker
QF2: a low pressure fuel pump motor breaking device
QF3: No. two low pressure fuel pump motor breaking devices
QF4:AC220V control loop circuit breaker
KM1: a low pressure fuel pump motor A.C. contactor
KM2: No. two low pressure fuel pump motor A.C. contactors
HL1: a low pressure fuel pump motor run indicator
HL2: No. two low pressure fuel pump motor run indicator
KT1: the time relay of selecting a low pressure fuel pump
KT2: the time relay of selecting No. two low pressure fuel pumps
SA1: main pump selector switch
SB1: a low pressure fuel pump stop button
SB2: a low pressure fuel pump start button
SB3: No. two low pressure fuel pump stop buttons
SB4: No. two low pressure fuel pump start buttons
Embodiment
Below in conjunction with drawings and Examples, the present invention is specifically described.
It described in Fig. 1, is major loop schematic diagram of the present invention.
It described in Fig. 2, is control loop schematic diagram of the present invention.
The present invention includes a low pressure fuel pump and No. two low pressure fuel pumps, a described low pressure fuel pump and No. two low pressure fuel pumps are by control loop control.
Described COMM communication comprises a main pump selector switch SA1 and two time relay KT1 and KT2, two time relay KT1 and KT2 are controlled respectively in two pairs of contacts of described main pump selector switch SA1, and the normally opened contact of the power cut off delay of described time relay KT1 and time relay KT2 is connected respectively in the control loop of a low pressure fuel pump and No. two low pressure fuel pumps.
When time relay coil obtains when electric, the normally opened contact of power cut off delay is closed immediately; In the time of time relay coil power-off, closed power cut off delay normally opened contact just can disconnect to rear at the delay time of setting.Utilize the feature of time relay power cut off delay, in the time stirring main pump selector switch SA1, the in the situation that of a low pressure fuel pump or No. two low pressure fuel pump operations, first start No. two low pressure fuel pumps or a low pressure fuel pump, the power cut off delay time stops automatically to a low pressure fuel pump or No. two low pressure fuel pumps of rear operation, therefore, and when maintenance main pump, do not need to stop grinding machine, ensured normal production.
The control loop of a described low pressure fuel pump comprises time relay KT1, the stop button SB1, start button SB2, motor breaking device QF2 and the motor A.C. contactor KM1 that connect successively, time relay KT1 connects main pump selector switch SA1 by L01 line, and motor A.C. contactor KM1 is connected with a low pressure fuel pump motor M 1.
The control loop of described No. two low pressure fuel pumps comprises time relay KT2, the stop button SB3, start button SB4, motor breaking device QF3 and the motor A.C. contactor KM2 that connect successively, time relay KT2 connects main pump selector switch SA1 by L01 line, and motor A.C. contactor KM2 is connected with No. two low pressure fuel pump motor M 2.
Described COMM communication also comprises main breaker QF1 and AC220V control loop circuit breaker Q F4, and main breaker QF1 and AC220V control loop circuit breaker Q F4 are connected the control loop of a low pressure fuel pump and No. two low pressure fuel pumps by L01 line.
Working principle of the present invention:
Circuit breaker Q F1-QF4 is closed a floodgate, when main pump selector switch SA1 being forwarded to low pressure fuel pump position (wire size L01 and 23 conductings, wire size L01 and 25 disconnects), the coil of time relay KT1 obtains electric, normally opened contact (wire size L01, the 3) closure of its power cut off delay; The coil blackout of time relay KT2, the normally opened contact (wire size L01,13) of its power cut off delay disconnects; Press and start a low pressure fuel pump start button SB2, the coil of a low pressure fuel pump motor A.C. contactor KM1 obtains electric, and its main contact closure starts No. one low pressure fuel pump motor M 1, and HL1 tutorial light is bright.Meanwhile, two couple of KM1 often opens auxiliary contact (wire size 5,7 and wire size 15,17) closure respectively;
When main pump selector switch SA1 being forwarded to No. two low pressure fuel pump positions, (wire size L01 and 23 disconnects, wire size L01 and 25 conductings), the coil blackout of time relay KT1, its closed power cut off delay normally opened contact (wire size L01,3) continues closed; The coil of time relay KT2 obtains electric, normally opened contact (wire size L01, the 13) conducting of its power cut off delay.Now, the coil of a low pressure fuel pump motor A.C. contactor KM1 continues electricly, and No. one low pressure fuel pump motor M 1 remains in operation; The coil of No. two low pressure fuel pump motor A.C. contactor KM2 obtains electric, and its main contact closure starts No. two low pressure fuel pump motor M 2, and HL2 tutorial light is bright.Meanwhile, two couple of KM2 often opens auxiliary contact (wire size 5,7 and wire size 15,17) closure respectively.After the time relay K T1 power cut off delay time arrives, its closed power cut off delay normally opened contact (wire size L01,3) disconnects, the coil blackout of a low pressure fuel pump motor A.C. contactor KM1, and its main contact disconnects, No. one low pressure fuel pump motor M 1 shuts down, and HL1 tutorial light goes out.
The present invention can be in the situation that main pump moves, first start stand by pump by selector switch, the time relay KT1 power cut off delay time that is arranged on main pump control loop is moved to the rear main pump motor that automatically stops, therefore, when maintenance main pump, do not need to stop grinding machine, ensured normal production, have advantages of that simple in structure, stable performance, reliability are high.
The above-mentioned embodiment of the present invention, just illustrates, and is not only, and change within the scope of the present invention all or that be equal in scope of the present invention is all surrounded by the present invention.
Claims (4)
1. a grinding machine petrol station oil pump COMM communication, comprise a low pressure fuel pump and No. two low pressure fuel pumps, a described low pressure fuel pump and No. two low pressure fuel pumps are by control loop control, it is characterized in that: described COMM communication comprises a main pump selector switch SA1 and two time relay KT1 and KT2, two time relay KT1 and KT2 are controlled respectively in two pairs of electric shocks of described main pump selector switch SA1, the electric shock of often opening of the power cut off delay of described time relay KT1 and time relay KT2 is connected respectively in the control loop of a low pressure fuel pump and No. two low pressure fuel pumps, in the time stirring main pump selector switch SA1, the in the situation that of a low pressure fuel pump or No. two low pressure fuel pump operations, first start No. two low pressure fuel pumps or a low pressure fuel pump, the power cut off delay time stops automatically to a low pressure fuel pump or No. two low pressure fuel pumps of rear operation.
2. grinding machine petrol station oil pump COMM communication according to claim 1, it is characterized in that: the control loop of a described low pressure fuel pump comprises time relay KT1, the stop button SB1, start button SB2, motor breaking device QF2 and the motor A.C. contactor KM1 that connect successively, time relay KT1 connects main pump selector switch SA1 by L01 line, and motor A.C. contactor KM1 is connected with a low pressure fuel pump motor M 1.
3. grinding machine petrol station oil pump COMM communication according to claim 1, it is characterized in that: the control loop of described No. two low pressure fuel pumps comprises time relay KT2, the stop button SB3, start button SB4, motor breaking device QF3 and the motor A.C. contactor KM2 that connect successively, time relay KT2 connects main pump selector switch SA1 by L01 line, and motor A.C. contactor KM2 is connected with No. two low pressure fuel pump motor M 2.
4. according to the grinding machine petrol station oil pump COMM communication described in claim 1,2 or 3 any one, it is characterized in that: described COMM communication also comprises main breaker QF1 and AC220V control loop circuit breaker Q F4, main breaker QF1 and AC220V control loop circuit breaker Q F4 are connected the control loop of a low pressure fuel pump and No. two low pressure fuel pumps by L01 line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174286.5A CN103982765A (en) | 2014-04-29 | 2014-04-29 | Oil pump switching device for oil station of mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174286.5A CN103982765A (en) | 2014-04-29 | 2014-04-29 | Oil pump switching device for oil station of mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982765A true CN103982765A (en) | 2014-08-13 |
Family
ID=51274850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410174286.5A Pending CN103982765A (en) | 2014-04-29 | 2014-04-29 | Oil pump switching device for oil station of mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982765A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195300A (en) * | 2015-11-13 | 2015-12-30 | 四川川润液压润滑设备有限公司 | Rotary shaft crusher capable of intelligent overload control and overload control method of rotary shaft crusher |
| WO2018196006A1 (en) * | 2017-04-28 | 2018-11-01 | 深圳市能源环保有限公司 | Two-pump control device for sewage pump |
| CN112879274A (en) * | 2021-01-12 | 2021-06-01 | 京能十堰热电有限公司 | Intelligent switching method for EH oil pump equipment of power plant |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672231A (en) * | 1986-01-14 | 1987-06-09 | Texas Instruments Incorporated | Control circuit particularly adapted for use with lubrication sensor apparatus |
| CN2109466U (en) * | 1992-01-07 | 1992-07-08 | 王猛 | Automatic working device for spare pump |
| CN201206541Y (en) * | 2008-05-09 | 2009-03-11 | 济南重工股份有限公司 | Electrovalve control circuit of high and low voltage thin oil station |
| CN201207134Y (en) * | 2008-05-09 | 2009-03-11 | 济南重工股份有限公司 | Control circuit for high-low voltage rare oil station |
| CN201218185Y (en) * | 2008-05-09 | 2009-04-08 | 济南重工股份有限公司 | Low pressure pump switching circuit for high/low-pressure lubricating station |
| CN101586733A (en) * | 2009-04-15 | 2009-11-25 | 济南重工股份有限公司 | High-low pressure thin oil automatic stop circuit after mill is stopped |
| CN201351799Y (en) * | 2008-11-18 | 2009-11-25 | 济南重工股份有限公司 | High-pressure pump automatic circulation control device of high-and-low pressure lubricating oil station |
| CN204062413U (en) * | 2014-04-29 | 2014-12-31 | 济南重工股份有限公司 | A kind of grinding machine petrol station oil pump COMM communication |
-
2014
- 2014-04-29 CN CN201410174286.5A patent/CN103982765A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672231A (en) * | 1986-01-14 | 1987-06-09 | Texas Instruments Incorporated | Control circuit particularly adapted for use with lubrication sensor apparatus |
| CN2109466U (en) * | 1992-01-07 | 1992-07-08 | 王猛 | Automatic working device for spare pump |
| CN201206541Y (en) * | 2008-05-09 | 2009-03-11 | 济南重工股份有限公司 | Electrovalve control circuit of high and low voltage thin oil station |
| CN201207134Y (en) * | 2008-05-09 | 2009-03-11 | 济南重工股份有限公司 | Control circuit for high-low voltage rare oil station |
| CN201218185Y (en) * | 2008-05-09 | 2009-04-08 | 济南重工股份有限公司 | Low pressure pump switching circuit for high/low-pressure lubricating station |
| CN201351799Y (en) * | 2008-11-18 | 2009-11-25 | 济南重工股份有限公司 | High-pressure pump automatic circulation control device of high-and-low pressure lubricating oil station |
| CN101586733A (en) * | 2009-04-15 | 2009-11-25 | 济南重工股份有限公司 | High-low pressure thin oil automatic stop circuit after mill is stopped |
| CN204062413U (en) * | 2014-04-29 | 2014-12-31 | 济南重工股份有限公司 | A kind of grinding machine petrol station oil pump COMM communication |
Non-Patent Citations (1)
| Title |
|---|
| 渤海船舶重工有限责任公司: "《船舶电工操作技能》", 30 June 2003, article "主备泵切换调试" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195300A (en) * | 2015-11-13 | 2015-12-30 | 四川川润液压润滑设备有限公司 | Rotary shaft crusher capable of intelligent overload control and overload control method of rotary shaft crusher |
| CN105195300B (en) * | 2015-11-13 | 2017-07-21 | 四川川润液压润滑设备有限公司 | It is a kind of to overload the rotating shaft disintegrating machine and its overload controlling method of intelligent control |
| WO2018196006A1 (en) * | 2017-04-28 | 2018-11-01 | 深圳市能源环保有限公司 | Two-pump control device for sewage pump |
| CN112879274A (en) * | 2021-01-12 | 2021-06-01 | 京能十堰热电有限公司 | Intelligent switching method for EH oil pump equipment of power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204283829U (en) | air compressor start-stop control system | |
| CN105545763B (en) | Pressure of supply water tank remote control and control method | |
| CN103982765A (en) | Oil pump switching device for oil station of mill | |
| CN202266819U (en) | Circuit for automatic switching spare pump for mill lubricating oil station | |
| CN203301225U (en) | Control device based on security-section interlocking self-switchover of gas-steam combined unit | |
| CN202196301U (en) | Seepage draining intelligence control system of water power station | |
| CN201090420Y (en) | Auto-put-in circuit of high and low voltage thin oil station stand-by pump | |
| CN204062413U (en) | A kind of grinding machine petrol station oil pump COMM communication | |
| CN201206541Y (en) | Electrovalve control circuit of high and low voltage thin oil station | |
| CN203477837U (en) | Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station | |
| CN103326457A (en) | Control method and control device based on gas-steam integral unit security segment interlock automatic switch | |
| CN103217921A (en) | Start-stop control device of relay-contact-type control electrical equipment | |
| CN204068769U (en) | A kind of control loop no-harass switch device of low voltage motor | |
| CN202772657U (en) | Control circuit preventing power down amid power supply switching process | |
| CN205049948U (en) | Numerical control cutting machine control circuit board | |
| CN202260395U (en) | Full-stop tripping protection circuit of transformer cooler | |
| CN102003378B (en) | Novel start control circuit for double-winding compressor | |
| CN211046463U (en) | Oxygen rifle rotating electrical machines protection system | |
| CN202872335U (en) | Circuit protection device for self-coupling voltage reduction starting box | |
| CN203251251U (en) | Double-loop rapid switching magnetic force starter | |
| CN203456854U (en) | Safety loop | |
| CN206694235U (en) | A kind of Lubricating-oil Station motor, oil pump protection circuit | |
| CN201428920Y (en) | High-pressure and low-pressure thin oil automatic shutdown circuit after mill shutdown | |
| CN205564643U (en) | Ac contactor trouble outage circular telegram is from start control circuit | |
| CN208803978U (en) | A kind of emulsification pump automatic control device based on underground coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |