CN208996929U - Control circuit is protected in drill jumbo water pump start and stop - Google Patents
Control circuit is protected in drill jumbo water pump start and stop Download PDFInfo
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- CN208996929U CN208996929U CN201821835893.1U CN201821835893U CN208996929U CN 208996929 U CN208996929 U CN 208996929U CN 201821835893 U CN201821835893 U CN 201821835893U CN 208996929 U CN208996929 U CN 208996929U
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- water pump
- contact
- relay
- switch
- hydraulic pressure
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Abstract
The utility model discloses a kind of drill jumbo water pump start and stop protection control circuit, including on the star contact KMY that is arranged in motor star triangle start auxiliary contact, hydraulic pressure detection switch P01, the rotary switch SA01 stopped for water pump, the contact of detection relay KA01 for detecting main pump motor stable operation situation, for coil, the water pump operation indicator light HL01 of the relay KA02 of hydraulic pressure detection, water pump contactor KM01.The utility model structure is simple, effect is obvious, when working space water supply capacity is insufficient, trolley is not able to satisfy in use, cutting water pump starting-up later time, prevents the repeatedly starting and stopping of water pump, extend element service life, guarantee that operator must take measures after so that construction site water supply pressure is met system requirements, water pump could be restarted, guarantees that water pump works normally；The service life of water pump can greatly be extended.
Description
Technical field
The utility model relates to a kind of water pump starting or stopping control circuit, belong to the automatically controlled field field of engineering machinery, specifically one
Control circuit is protected in kind drill jumbo water pump start and stop.
Background technique
Drill jumbo is suitable for the undergrounds such as tunnel, mine, tunnel and chemical industry, railway, highway, water conservancy and hydropower, national defence work
Journey construction, is a kind of equipment of Drilling blasthole.Power mainly is provided by motor when its work, electric motor starting mode is star triangle
Starting.In order to guarantee that the smooth Drilling of blasthole, trolley can configure water pump and complete flushing cinder, filter flushing, hydraulic circuit cooling
Etc. functions.Generally pressure switch can be set in the water inlet of water pump and control water feeding of water pump pressure, prevent water pump to be emptied and guarantee water
Flushing pressure reaches rinsing requirement.Rationally effective control water pump start and stop have important meaning to the working efficiency of drill jumbo
Justice.
When working space water supply capacity is insufficient, it is not able to satisfy trolley in use, since pressure switch is mounted in pump intake,
If water inlet pressure energy reaches setting value before work, after starting main pump motor even running, water pump starts automatically, once operation
The hypotension of pump intake after getting up, when being lower than pressure switch setting value, water pump stops.After water pump stops, water leads to again
It crosses water route and flows back to water inlet, water inlet pressure gradually rises, when reaching pressure switch setting value, water pump automatic starting again,
The hypotension of pump intake after water pump operation gets up, when be lower than pressure switch setting value when, water pump stop, reciprocation cycle this
Process.Once just without limitation on the start and stop of water pump after main pump motor starting in the prior art, machine hand can often ignore this process,
And take no action to enhance live water supply capacity, so that water supply pressure is met system requirements, cause water pump cisco unity malfunction, and leads
It causes the suction repeatedly of water pump contactor disconnected, influences the contactor service life.
Summary of the invention
In view of the above-mentioned problems of the prior art, the utility model provides a kind of drill jumbo water pump start and stop protection control
Circuit is not able to satisfy trolley in use, water pump will not start and stop repeatedly, it is necessary to adopt when working space water supply capacity is insufficient
After taking measure that water supply pressure is made to meet system requirements, it can be just again started up main pump motor, water pump just will start normal operation, can pole
The earth extends water pump service life.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of drill jumbo water pump start and stop protection
Control circuit, including the auxiliary contact on the star contact KMY that is arranged in motor star triangle start, hydraulic pressure detection switch
P01, rotary switch SA01, the detection relay KA01 for detecting main pump motor stable operation situation stopped for water pump
Contact, for hydraulic pressure detection relay KA02, water pump contactor KM01 coil, water pump operation indicator light HL01.
The beneficial effects of the utility model are: not being able to satisfy trolley in use, cutting when working space water supply capacity is insufficient
Water pump starting-up later time prevents the repeatedly starting and stopping of water pump, extends element service life, guarantees that operator must take measures to make to apply
Workshop after water supply pressure meets system requirements, water pump could be restarted, guarantee that water pump works normally；Water can greatly be extended
The service life of pump.
Detailed description of the invention
Fig. 1 is the circuit connection diagram of the utility model；
Fig. 2 is the structural principle block diagram of the utility model；
Fig. 3 is the work flow diagram of the utility model.
In figure: KMY, star contact, P01, hydraulic pressure detection switch, SA01, rotary switch, KA01, detection relay,
KA02, relay, KM01, water pump contactor, HL01, water pump operation indicator light.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, below by accompanying drawings and embodiments,
The present invention will be further described in detail.However, it should be understood that specific embodiment described herein is only used to solve
The utility model is released, the range being not intended to limit the utility model.
Unless otherwise defined, all technical terms and scientific terms used herein and the skill for belonging to the utility model
The normally understood meaning of the technical staff in art field is identical, and terminology used in the description of the utility model herein is only
It is the purpose in order to describe specific embodiment, it is not intended that in limitation the utility model.
As shown in figures 1 and 3, control circuit is protected in a kind of drill jumbo water pump start and stop, including is arranged in motor star triangle
The auxiliary contact on star contact KMY, hydraulic pressure detection switch P01 in starting, the rotary switch SA01 stopped for water pump,
Main pump motor stable operation detects the contact of relay KA01, for relay KA02, the water pump contactor KM01 of hydraulic pressure detection
Coil, water pump operation indicator light HL01；13 ends of the auxiliary contact on the star contact KMY be connected to positive pole,
14 ends are connected with relay KA02, the relay KA02 other end ground connection by hydraulic pressure detection switch P01；The positive pole
It is also connected with rotary switch SA01, the rotary switch SA01 is connected with relay by detecting the contact of relay KA01
KA02；The relay KA02 is also connected with the end A1 of water pump contactor KM01, the end the A2 end of the water pump contactor KM01
Ground connection.
Further, the relay KA02 includes relay ontology, the first contact switch and the second contact switch, it is described after
The end A1 of electric appliance ontology is connected to 2 ends of hydraulic pressure detection switch P01, the end A2 ground connection；21 ends of first contact switch connect
13 ends of auxiliary contact, 24 ends of the first contact switch, which are connected on star contact KMY, on to star contact KMY assists touching
14 ends of point；11 ends of second contact switch are connected to 14 ends of detection relay KA01,14 ends of the second contact switch
It is connected to the end A1 of water pump contactor KM01.
Further, water pump operation indicator light HL01 is also parallel on the water pump contactor KM01；Referred to by water pump operation
Show that lamp HL01 can be expressly understood that water pump operation situation.
Preferably, the hydraulic pressure detection switch is set to the water inlet of drill jumbo water pump, when pump intake pressure reaches
When mark, the hydraulic pressure detection switch closure, it can be ensured that pipeline is connected with water pump after unit fixed on water pump suction hydraulic pressure is up to standard.
As shown in figure 3, the working process of the utility model is as follows: starting motor first, the starting of main pump motor star, star connect
The auxiliary contact of tentaculum KMY are closed (P1 step)；Secondly whether hydraulic pressure detection switch P01 detection hydraulic pressure is up to standard, when hydraulic pressure is up to standard
Afterwards, hydraulic pressure switch P01 can be closed (P2 step)；The anode that hydraulic pressure detects relay KA02 passes through the hydraulic pressure switch P01 after closure
It is connected to power supply with the auxiliary contact of KMY, while two pairs of contact closures (P3 step) of hydraulic pressure detection relay KA02；Work as main pump
After motor is switched to triangle stable operation by star, contact closure (the P4 step of motor stabilizing operation detection relay KA01
Suddenly)；Switch off the pump shutdown switch SA01(P5 step)；The anode of water pump contactor KM01 is closed by relay KA01's and KA02
Conjunction contact, and the water pump shutdown switch of closure connect to power supply, and water pump starts (P6 step)；Bright (the P7 of water pump operation indicator light
Step)；When water-aspirator pressure is not up to standard, hydraulic pressure detection switch P01 be will disconnect, and main pump motor is switched to three by star-like connection at this time
Angle connection mode is run, and star contact KMY auxiliary contact will not be reclosed and (are again started up unless closing motor), therefore water
Pressure detection relay KA02 coil losing electricity, contact disconnect, and water pump contactor KM01 coil losing electricity, water pump stops (P10 step)；Water
Indicator light off for pump operation (P9 step)；If wanting to be again started up water pump (P8 step), it is necessary to take measures to make construction site water supply water
After pressure meets system requirements, main pump motor is restarted, water pump just can normal table operation.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (3)
1. control circuit is protected in a kind of drill jumbo water pump start and stop, including the star contact being arranged in motor star triangle start
(KMY) auxiliary contact, hydraulic pressure detection switch (P01) on, the rotary switch (SA01) for water pump stopping, main pump motor are stablized
Operation detection relay (KA01) contact, for hydraulic pressure detection relay (KA02), water pump contactor (KM01) coil,
Water pump operation indicator light (HL01)；It is characterized in that, 13 ends of the auxiliary contact on the star contact (KMY) are connected to electricity
Source anode, 14 ends are connected with relay (KA02) by hydraulic pressure detection switch (P01), another termination of the relay (KA02)
Ground；The positive pole is also connected with rotary switch (SA01), and the rotary switch (SA01) passes through detection relay (KA01)
Contact be connected with relay (KA02)；The relay (KA02) is also connected with the end A1 of water pump contactor (KM01), described
The end A2 of water pump contactor (KM01) is grounded.
2. control circuit is protected in a kind of drill jumbo water pump start and stop according to claim 1, which is characterized in that the relay
Device (KA02) includes relay ontology, the first contact switch and the second contact switch, and the end A1 of the relay ontology is connected to
2 ends of hydraulic pressure detection switch (P01), the end A2 ground connection；21 ends of first contact switch are connected on star contact (KMY)
13 ends of auxiliary contact, 24 ends of the first contact switch are connected to 14 ends of auxiliary contact on star contact (KMY)；Described
11 ends of two contact switch are connected to 14 ends of detection relay (KA01), and 14 ends of the second contact switch are connected to water pump contact
The end A1 of device (KM01).
3. control circuit is protected in a kind of drill jumbo water pump start and stop according to claim 1 or 2, which is characterized in that described
Water pump operation indicator light (HL01) is also parallel on water pump contactor (KM01).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821835893.1U CN208996929U (en) | 2018-11-08 | 2018-11-08 | Control circuit is protected in drill jumbo water pump start and stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821835893.1U CN208996929U (en) | 2018-11-08 | 2018-11-08 | Control circuit is protected in drill jumbo water pump start and stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996929U true CN208996929U (en) | 2019-06-18 |
Family
ID=66807421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821835893.1U Active CN208996929U (en) | 2018-11-08 | 2018-11-08 | Control circuit is protected in drill jumbo water pump start and stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996929U (en) |
-
2018
- 2018-11-08 CN CN201821835893.1U patent/CN208996929U/en active Active
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