CN203477837U - Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station - Google Patents
Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station Download PDFInfo
- Publication number
- CN203477837U CN203477837U CN201320420414.0U CN201320420414U CN203477837U CN 203477837 U CN203477837 U CN 203477837U CN 201320420414 U CN201320420414 U CN 201320420414U CN 203477837 U CN203477837 U CN 203477837U
- Authority
- CN
- China
- Prior art keywords
- low pressure
- pressure fuel
- fuel pump
- pump motor
- normally
- 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
Links
Images
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a device for automatically switching a backup low pressure pump to a main low pressure pump of a mill oil station. The device comprises a main loop and a control loop. The device is simple in structure, stable in performance and high in reliability, when a circuit breaker of the main pump trips, the backup pump is not automatically stopped because of normal oil pressure after started, so that the backup pump is prevented from being started and stopped frequently in a short time, and the service life of an oil pump is prolonged.
Description
Technical field
The utility model relates to the standby low pressure pump of a kind of grinding machine petrol station and automatically transfers primary low pump-unit to.
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.General grinding machine petrol station has two low pressure fuel pumps, the using and the reserved, when main pump breaks down while causing low fuel pressure, stand by pump can start automatically, and after oil pressure is normal, stand by pump can shut down automatically, oil pressure lower than normal value after, stand by pump can start again automatically, start and stop stand by pump so continually at short notice, the working life that can reduce oil pump.
Model utility content
The purpose of this utility model is exactly in order to address the above problem, and has proposed the standby low pressure pump of a kind of grinding machine petrol station and has automatically transferred primary low pump-unit to.This apparatus structure is simple, stable performance, reliability are high, has avoided in the short time start and stop stand by pump continually, increases the working life of oil pump.
To achieve these goals, the utility model adopts following technological scheme:
The standby low pressure pump of grinding machine petrol station transfers a primary low pump-unit automatically to, comprising: major loop and control loop; Major loop comprises: main breaker, low pressure fuel pump motor one circuit breaker, low pressure fuel pump motor two circuit breakers, control loop circuit breaker, low pressure fuel pump motor one A.C. contactor, low pressure fuel pump motor two A.C. contactors, low pressure fuel pump motor one, low pressure fuel pump motor two; Control loop comprises: main pump selector switch, grinding machine run signal, oil pressure normal relay, low pressure fuel pump motor one control loop, low pressure fuel pump motor two control loops; By the normally-closed contact of low pressure fuel pump motor one circuit breaker and receive in the control loop of low pressure fuel pump motor two, by the normally-closed contact of low pressure fuel pump motor two circuit breakers and receive in the control loop of low pressure fuel pump motor one.
In described low pressure fuel pump motor one control loop, normally-closed contact one end of low pressure fuel pump motor two circuit breakers is connected with the normally opened contact of oil pressure normal relay, and the other end is connected with low pressure fuel pump motor two A.C. contactor normally-closed contacts.
In described low pressure fuel pump motor two control loops, normally-closed contact one end of low pressure fuel pump motor one circuit breaker is connected with the normally opened contact of oil pressure normal relay, and the other end is connected with the normally-closed contact of low pressure fuel pump motor one A.C. contactor.
The beneficial effects of the utility model are:
This apparatus structure is simple, stable performance, reliability are high, and during the circuit breaker trip of main pump, stand by pump just can normally and automatically not stop because of oil pressure after starting, and has avoided in the short time start and stop stand by pump continually, increases the working life of oil pump.
Accompanying drawing explanation:
Fig. 1 is major loop schematic diagram of the present utility model;
Fig. 2 is major loop schematic diagram of the present utility model.
Wherein, 1. low pressure fuel pump motor one, 2. low pressure fuel pump motor two, QF1: main breaker, QF2: low pressure fuel pump motor one circuit breaker, QF3: low pressure fuel pump motor two circuit breakers, QF4: control loop circuit breaker, KM1: low pressure fuel pump motor one A.C. contactor, KM2: low pressure fuel pump motor two A.C. contactors, HL1: low pressure fuel pump motor one run indicator, HL2: low pressure fuel pump motor two run indicator, KA1: oil pressure normal relay, SA1: main pump selector switch, SB1: low pressure fuel pump motor one stop button, SB2: low pressure fuel pump motor one start button, SB3: low pressure fuel pump motor two stop buttons, SB4: low pressure fuel pump motor two start buttons, K1: grinding machine run signal.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
As depicted in figs. 1 and 2, the standby low pressure pump of a kind of grinding machine petrol station transfers primary low pump-unit automatically to, comprising: major loop and control loop; Major loop comprises: main breaker QF1, low pressure fuel pump motor one circuit breaker Q F2, low pressure fuel pump motor two circuit breaker Q F3, control loop circuit breaker Q F4, low pressure fuel pump motor one A.C. contactor KM1, low pressure fuel pump motor two A.C. contactor KM2, low pressure fuel pump motor 1, low pressure fuel pump motor 22; Control loop comprises: main pump selector switch SA1, grinding machine actuating signal K1, oil pressure normal relay KA1, low pressure fuel pump motor one 1 control loops, low pressure fuel pump motor 22 control loops; By the normally-closed contact of low pressure fuel pump motor one circuit breaker Q F2 and receive in the control loop of low pressure fuel pump motor 22, by the normally-closed contact of low pressure fuel pump motor two circuit breaker Q F3 and receive in the control loop of low pressure fuel pump motor 1.
In described low pressure fuel pump motor one 1 control loops, normally-closed contact one end of low pressure fuel pump motor two circuit breaker Q F3 is connected with the normally opened contact of oil pressure normal relay KA1, and the other end is connected with the normally-closed contact of low pressure fuel pump motor two A.C. contactor KM2.
In described low pressure fuel pump motor 22 control loops, normally-closed contact one end of low pressure fuel pump motor one circuit breaker Q F2 is connected with the normally opened contact of oil pressure normal relay KA1, and the other end is connected with the normally-closed contact of low pressure fuel pump motor one A.C. contactor KM1.
If main pump selector switch SA1 is forwarded to low pressure fuel pump motor one 1 positions (wire size L01 and L03 conducting, wire size L11 and L29 conducting), circuit breaker Q F1-QF4 is closed a floodgate, and the normally opened contact closure of low pressure fuel pump motor one 1 A.C. contactor QF2, normally-closed contact disconnect; The normally opened contact closure of low pressure fuel pump motor 22 A.C. contactor QF3, normally-closed contact disconnect; Press SB2 button, the coil of A.C. contactor KM1 obtains electric, and its main contact is closed, starts low pressure fuel pump motor 1, and HL1 tutorial light is bright.After oil pressure is normal, start grinding machine, mill running signal K1 closed (wire size L01 and L11 conducting).When low pressure fuel pump motor 1 breaks down, cause after QF2 tripping operation, its normally opened contact disconnects, normally-closed contact closed (wire size L7 and L9 disconnect, wire size L29 and L25 conducting), the coil blackout of A.C. contactor KM1, its main contact disconnects, and causes low pressure fuel pump motor 1 to shut down, and HL1 tutorial light goes out, the coil of A.C. contactor KM2 obtains electric, its main contact is closed, and low pressure fuel pump motor 22 starts immediately, and HL2 tutorial light is bright, after oil pressure is normal, low pressure fuel pump motor 22 can be automatically not out of service.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (3)
1. the standby low pressure pump of grinding machine petrol station transfers a primary low pump-unit automatically to, it is characterized in that, comprising: major loop and control loop;
Major loop comprises: main breaker, low pressure fuel pump motor one circuit breaker, low pressure fuel pump motor two circuit breakers, control loop circuit breaker, low pressure fuel pump motor one A.C. contactor, low pressure fuel pump motor two A.C. contactors, low pressure fuel pump motor one, low pressure fuel pump motor two;
Control loop comprises: main pump selector switch, grinding machine actuating signal switch, oil pressure normal relay, low pressure fuel pump motor one control loop, low pressure fuel pump motor two control loops;
By the normally-closed contact of low pressure fuel pump motor one circuit breaker and receive in the control loop of low pressure fuel pump motor two, by the normally-closed contact of low pressure fuel pump motor two circuit breakers and receive in the control loop of low pressure fuel pump motor one.
2. the standby low pressure pump of a kind of grinding machine petrol station as claimed in claim 1 transfers primary low pump-unit automatically to, it is characterized in that, in described low pressure fuel pump motor one control loop, normally-closed contact one end of low pressure fuel pump motor two circuit breakers is connected with the normally opened contact of oil pressure normal relay, and the other end is connected with the normally-closed contact of low pressure fuel pump motor two A.C. contactors.
3. the standby low pressure pump of a kind of grinding machine petrol station as claimed in claim 1 transfers primary low pump-unit automatically to, it is characterized in that, in described low pressure fuel pump motor two control loops, normally-closed contact one end of low pressure fuel pump motor one circuit breaker is connected with the normally opened contact of oil pressure normal relay, and the other end is connected with the normally-closed contact of low pressure fuel pump motor one A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420414.0U CN203477837U (en) | 2013-07-15 | 2013-07-15 | Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420414.0U CN203477837U (en) | 2013-07-15 | 2013-07-15 | Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477837U true CN203477837U (en) | 2014-03-12 |
Family
ID=50226167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320420414.0U Expired - Fee Related CN203477837U (en) | 2013-07-15 | 2013-07-15 | Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477837U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253379A (en) * | 2018-09-07 | 2019-01-22 | 四川川润液压润滑设备有限公司 | A kind of lubricating system and control method with Embedded Motion |
| CN109751499A (en) * | 2018-12-10 | 2019-05-14 | 夹江县巨浪机械有限责任公司 | A kind of solution that surface grinding machine workbench lubrication oil supply is unstable |
-
2013
- 2013-07-15 CN CN201320420414.0U patent/CN203477837U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253379A (en) * | 2018-09-07 | 2019-01-22 | 四川川润液压润滑设备有限公司 | A kind of lubricating system and control method with Embedded Motion |
| CN109751499A (en) * | 2018-12-10 | 2019-05-14 | 夹江县巨浪机械有限责任公司 | A kind of solution that surface grinding machine workbench lubrication oil supply is unstable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204283829U (en) | air compressor start-stop control system | |
| CN202435320U (en) | Protection circuit of soft starter | |
| CN202266819U (en) | Circuit for automatic switching spare pump for mill lubricating oil station | |
| CN203477837U (en) | Device for automatically switching backup low pressure pump to main low pressure pump of mill oil station | |
| CN201733267U (en) | Power reset self-starting device for asynchronous motor | |
| CN201369697Y (en) | Device adopting capacitor to start large asynchronous motor | |
| CN201090420Y (en) | Auto-put-in circuit of high and low voltage thin oil station stand-by pump | |
| CN102684158A (en) | Overheat delay protection device for motor | |
| CN201788066U (en) | Full automatic pressure tester | |
| CN103982765A (en) | Oil pump switching device for oil station of mill | |
| CN209447753U (en) | Electronic type molded shell-type breaker | |
| CN112185771A (en) | Automatic switch structure of power circuit breaker and control system thereof | |
| CN205123236U (en) | Distribution lines protection device | |
| CN103532445B (en) | A kind of startup control device of heavy load start of motor and control method thereof | |
| CN202260395U (en) | Full-stop tripping protection circuit of transformer cooler | |
| CN204062413U (en) | A kind of grinding machine petrol station oil pump COMM communication | |
| CN104917423A (en) | Reduced-voltage starting control system | |
| CN204068769U (en) | A kind of control loop no-harass switch device of low voltage motor | |
| CN202872335U (en) | Circuit protection device for self-coupling voltage reduction starting box | |
| CN204578070U (en) | Open-phase protection circuit of motor | |
| CN202586284U (en) | Motor overheating delay protection device | |
| CN204733099U (en) | A kind of reduced-voltage starting control system | |
| CN202678938U (en) | Motor overload protection circuit for motor-driven oil well pump | |
| CN204031039U (en) | A kind of voltage shock avoiding motor intelligent manager | |
| CN203434595U (en) | Dual power supply manual switch protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |