CN109597341A - A kind of engineering machinery miscellaneous function safe starting control device and method - Google Patents
A kind of engineering machinery miscellaneous function safe starting control device and method Download PDFInfo
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- CN109597341A CN109597341A CN201811608142.0A CN201811608142A CN109597341A CN 109597341 A CN109597341 A CN 109597341A CN 201811608142 A CN201811608142 A CN 201811608142A CN 109597341 A CN109597341 A CN 109597341A
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- switch
- miscellaneous function
- relay
- power supply
- safety
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention discloses a kind of engineering machinery miscellaneous function safe starting control device, including be arranged on cab seat position sensor, by the first relay K1 of position sensor triggering, safety switch S4, by the auxiliary functional switch S1 third relay K3 controlled and by the pressure switch S3 of miscellaneous function solenoid valve Y oil outlet pressure control on-off.It is able to detect whether machine hand in bridge operation or leaves driver's cabin by safety switch, position sensor, and different movements is carried out according to the result trigger relay of detection, only need a staff that can achieve the purpose that safety operation, save human cost, achieve the purpose that safety operation simultaneously, under at low cost, it is easy to accomplish, preferable safety operation purpose can be reached.
Description
Technical field
The present invention relates to stake work and engineering machinery fields, more particularly to are equipped with AFU auxiliary functional unit and need to leave driving
The device of room operation.
Background technique
Due to than relatively hazardous in engineering machinery work progress, it is desirable that operation machine hand cannot leave driver's cabin, could protect in this way
It demonstrate,proves construction movement to monitor and operate at any time, to stop all construction movements when leaving, while to turn off corresponding safety open
It closes.Drive-through operation is needed if some miscellaneous functions such as cleaning, oiling etc. simultaneously.It thus needs to judge to drive in-house operation still
It is operated under vehicle, to make correct switch, achievees the purpose that safeguard protection.
It is at present usually machine hand without departing from driver's cabin, it is auxiliary with staff's operation when needing to operate auxiliary movement, then separately
Assist energy；Either machine subordinate vehicle does not carry out handoff-security, directly operation miscellaneous function.
For machine hand without departing from driver's cabin, safety operation can be achieved the purpose that by separately operating miscellaneous function with staff, but be needed
Increase by one or more staff, personnel is caused to waste；It directly gets off and is just operated without handoff-security, it can be to operation
Security risk is brought, can still manipulate construction movement all when operating auxiliary movement or operation auxiliary movement when hot work in progress
It is a kind of security risk.
Summary of the invention
Goal of the invention:
The present invention provides a kind of engineering machinery miscellaneous function safe starting control device, it is only necessary to which a staff can reach
To the purpose of safety operation, human cost is saved, while achieving the purpose that safety operation.The simple position switch of the present invention
With simple circuit, under at low cost, it is easy to accomplish, preferable safety operation purpose can be reached.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of engineering machinery miscellaneous function safe starting control device, characterized in that including the position being arranged on cab seat
Set sensor, the first relay K1 by position sensor triggering, safety switch S4, the third controlled by auxiliary functional switch S1
The relay K3 and pressure switch S3 that on-off is controlled by miscellaneous function solenoid valve Y oil outlet pressure；
In safety switch S4, one of normally closed switch is connect in the power supply line all the way of ECU, another normally closed switch connects
On two parallel operation routes connecting with miscellaneous function solenoid valve Y, normal open switch therein is connect miscellaneous function solenoid valve Y's
On independently-powered route；One is wherein also set up on a parallel operation route in the manual start switch S2 for driving field operation；
The pressure switch S3 is set on another parallel operation route；
First relay K1 has the first normally opened contact and the first normally-closed contact, wherein the first normally opened contact connects in the another of ECU
In the power supply line of road, the first normally-closed contact is connect in the power supply line of the second relay K2；
Third relay K3 has third normally opened contact, and third normally opened contact connects the independently-powered line in miscellaneous function solenoid valve Y
On the road；
Second relay K2 has the second normally opened contact, and the second normally opened contact connects on another parallel operation route.
Safety switch S4 includes two groups of interlocking position switch, includes that a normal open switch and one are normally closed in every group of position switch
Switch.
Diode, anode and the safety of the diode are additionally provided on the independently-powered route of miscellaneous function solenoid valve Y
Normal open switch connection in switch S4, cathode are connect through third normally opened contact with miscellaneous function solenoid valve Y.
Auxiliary functional switch S1 is point-touch switch.
Manual start switch S2 is point-touch switch.
The duration that the manual start switch S2 is pressed is no less than 5 seconds.
A kind of engineering machinery miscellaneous function safety starting control method, characterized in that
Be arranged on cab seat an inductive operation machine hand whether position sensor in position；Position sensor triggering the
When one relay K1 power loss, makes wherein power supply line's power loss all the way of Engine ECU, obtain the second relay electric；First relay
When device K1 obtains electric, make Engine ECU wherein power supply line obtains electric all the way, make the second relay electric-loss；
One safety switch S4 is set in driver's cabin, and when safety switch S4 is disconnected, power supply passes through wherein one in safety switch S4
A normally closed switch provides power supply for the another way power supply line of Engine ECU, power supply by safety switch S4 another often
Two parallel operation line powerings of make and break Guan Weiyu miscellaneous function solenoid valve Y connection；When safety switch S4 is closed, power supply passes through
The independently-powered line powering that one of normal open switch in safety switch S4 is miscellaneous function solenoid valve Y；Wherein one simultaneously
One is also set up in alliance electric line in the manual start switch S2 for driving field operation；Pressure is set on another parallel operation route
The second normally opened contact that power switch S3 and the second relay K2 have；Pressure switch S3 is produced by miscellaneous function solenoid valve Y oil outlet
Raw pressure activated closure；
The auxiliary functional switch S1 of one control third relay K3 is set outside driver's cabin；Auxiliary functional switch S1 triggering make third after
When electric appliance K3 obtains electric, the normally opened contact closure of the third relay K3 on independently-powered route is set, is miscellaneous function electromagnetism
Valve Y power supply.
When operation machine hand is on cab seat, when operating miscellaneous function by non-he or she, the people of the operation miscellaneous function
Member presses auxiliary functional switch S1, and third relay K3 obtains electric, the normally opened contact closure of third relay K3, miscellaneous function electromagnetism
Valve Y and safety switch S4 is connected, and miscellaneous function solenoid valve Y connects the operation for carrying out miscellaneous function.
When operation machine hand leaves driver's cabin oneself operation miscellaneous function, safety switch S4 is first disconnected, power supply is made to pass through peace
One of normally closed switch in full switch S4 provides power supply for Engine ECU, and power supply passes through another in safety switch S4
Normally closed switch is two parallel operation line powerings connecting with miscellaneous function solenoid valve Y；
Meanwhile 2 power loss of position sensor, the first relay K1 power loss that position sensor 2 controls；First relay K1's is normally closed
Contact obtains electric closure, obtains the second relay K2 electric, the normally opened contact closure of the second relay K2；
Auxiliary functional switch S1 is pressed, obtains third relay K3 electric, the normally opened contact closure of third relay K3；
Manual start switch S2 is pressed again, connects a wherein parallel operation route, and miscellaneous function solenoid valve Y passes through this parallel connection
Power supply line obtains electric, the pressure activated pressure of miscellaneous function solenoid valve Y oil outlet from another normally closed switch of safety switch S4
Switch S3 closure, miscellaneous function solenoid valve Y pass through another parallel operation route where pressure switch S3 from safety switch S4
Another normally closed switch continue to obtain electric maintenance miscellaneous function solenoid valve Y power supply.
When operation machine hand, which leaves driver's cabin, does not disconnect safety switch S4,2 power loss of position sensor, position sensor 2 is controlled
First relay K1 power loss of system makes wherein power supply line's power loss all the way of Engine ECU；The normally closed switch of safety switch S4 is disconnected
It opens, makes to provide the power supply line of another way power supply also power loss by the normally closed switch Engine ECU of safety switch S4.
Advantageous effects of the invention:
Engineering machinery miscellaneous function safe starting control device of the invention, is able to detect by safety switch, position sensor
Whether machine hand in bridge operation or leaves driver's cabin, and carries out different movements according to the result trigger relay of detection,
It only needs a staff that can achieve the purpose that safety operation, saves human cost, while reaching safety operation
Purpose, under at low cost, it is easy to accomplish, preferable safety operation purpose can be reached.
Detailed description of the invention
Fig. 1, seat sensor installation site figure.
Fig. 2, safety guard realize circuit diagram, and wherein S1 is the auxiliary functional switch for controlling miscellaneous function Y；Under S2 is
The manual start switch of vehicle operation；S3 is the pressure switch for detecting miscellaneous function solenoid valve Y oil outlet oil pressure, when pipeline has pressure
Closure；S4 is safety switch, is made of two switches S4_1 and S4_2, and two switches have normally-open normally-close switch, two switches
Interlocking installation, i.e. S4_2 is disconnected when S4_1 is triggered, and S4_2 is triggered when S4_1 is disconnected；ECU is control unit of engine, and power loss is started
Machine is flame-out；K1 is the relay that the position sensor 2 assembled on seat controls, band normally-open normally-close contact；K2 is the control of the circuit L2
Relay, band normally opened contact；K3 is the relay of auxiliary functional switch S1 control, normally opened contact.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As depicted in figs. 1 and 2, a position sensor 2 is assembled on cab seat 1, it, can be with using optoelectronic switch
The lighttight object of detection gear in front.Position sensor 2 is blocked when machine hand is sitting in above seat, position sensor 2 obtains
Electricity, when machine hand leaves seat, thus whether on the seat 2 power loss of position sensor judges operation machine hand.Again in driver's cabin
It is equipped with a safety switch S4, there are two interlocking position switch S4_1, S4_2 to form by safety switch S4, to disconnect when getting off
Safety switch S4,3 pins and 5 pins connect on two in safety switch S4 normally closed switch have electricity, and connect in safety switch
Without electricity, 4 pins are miscellaneous function solenoid valve Y power supply for 4 pins in S4 on normal open switch, and miscellaneous function solenoid valve Y can be with without electricity
The signal for cutting off construction movement, can not construct.
As shown in Fig. 2, engineering machinery miscellaneous function safe starting control device of the invention, including be arranged in driver's cabin seat
Position sensor 2 on chair, safety switch S4, is controlled by auxiliary functional switch S1 the relay K1 triggered by position sensor 2
Relay K3 and by miscellaneous function solenoid valve Y oil outlet pressure control on-off pressure switch S3；
In safety switch S4, one of normally closed switch is connect in the power supply line all the way of ECU by pin 3, another is often
Make and break is closed to be connect on two parallel operation routes connecting with miscellaneous function solenoid valve Y by pin 5, and normal open switch therein is logical
Pin 4 is crossed to connect on the independently-powered route of miscellaneous function solenoid valve Y；Wherein also set up on a parallel operation route L1 one
Drive the manual start switch S2 of field operation；The pressure switch S3 is set on another parallel operation route L2；
Relay K1 has normally opened contact and normally-closed contact, wherein normally opened contact connects in the another way power supply line of ECU, often
Closed contact connects in the power supply line of relay K2；
Relay K3 has normally opened contact, and normally opened contact connects on the independently-powered route of miscellaneous function solenoid valve Y；
Relay K2 has normally opened contact, and normally opened contact connects on another parallel operation route L2.
Specific implementation: when machine hand needs drive-through operation miscellaneous function, if without it is any operation (do not disconnect safety switch S4,
The pin 4 connect on the normal open switch in safety switch S4 has electricity, and connects on two normally closed switch in safety switch S4
Pin 3 and pin 5 are without electricity), it directly gets off, the position sensor 2 being mounted on seat 1 detects that machine hand in position, can not stood
The power supply of Engine ECU is cut off, engine misses achieve the purpose that safe.
When machine hand also onboard, other staff operate miscellaneous function when, press auxiliary functional switch S1, relay K3
Electric, normally opened contact closure is obtained, miscellaneous function solenoid valve Y passes through relay and connects with safety switch S4, can directly operate auxiliary
Function.
When drive-through operation miscellaneous function, safety switch S4 is disconnected, power supply is switched to 3 pins and 5 pins by 4 pins, connects
3 pins on two normally closed switch and 5 pins in safety switch S4 have electricity, and connect in safety switch S4 on normal open switch
4 pins without electricity；2 power loss of position sensor simultaneously, the relay K1 power loss that position sensor 2 controls, is connected with Engine ECU
The normally opened contact power loss of relay K1 disconnect, no longer give Engine ECU power supply, power supply is hair by 3 feet of safety switch S4
Motivation ECU, which provides power supply, to be continued to power, and engine works on.Press auxiliary functional switch S1 at this time, relay K3 obtain it is electric, often
Contact closure is opened, since the pin 4 of the safety switch S4 to power for miscellaneous function solenoid valve Y is without electricity, miscellaneous function solenoid valve Y
It is not turned on, miscellaneous function cannot still start.Manual start switch S2 is pressed again, connects the circuit parallel operation route L1, this
When miscellaneous function solenoid valve Y from the pin 5 of safety switch S4 it is electric, loose one's grip after 5 seconds, be mounted in miscellaneous function solenoid valve Y oil outlet
Pressure switch S3 be closed because there is pressure, electric loop is switched to parallel operation route L2 by parallel operation route L1, from
The pin 5 of safety switch S4 obtains electric maintenance miscellaneous function solenoid valve Y power supply.The circuit parallel operation route L2 is also passed by seat position
Sensor 2 controls, and position sensor 2 controls relay K1, relay K1 power loss after machine subordinate vehicle, and the normally-closed contact of relay K1 obtains
Electricity closure, obtains relay K2 electric, and the normally opened contact closure of relay K2 maintains parallel operation route L2 to obtain electric, keeps auxiliary
Function solenoid valve Y power supply, can control miscellaneous function.
The present invention provides a kind of method of controlling security and device, can be by judging in bridge operation or drive-through operation
To make different judgements.It is whether in place by general common photoelectricity switch detection operation machine hand, it is convenient to use again.With two
A common position switch allows hand over electric wiring when two kinds of work as safety switch.Added again by the above sensor
Upper common relay realizes two layers of protection, it can be ensured that machine hand leaves the safety operation of driver's cabin.The present invention realizes simple, peace
It is complete effective.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of engineering machinery miscellaneous function safe starting control device, characterized in that including being arranged on cab seat
Position sensor, by the first relay K1 of position sensor triggering, safety switch S4, controlled by auxiliary functional switch S1 the
The three relay K3 and pressure switch S3 that on-off is controlled by miscellaneous function solenoid valve Y oil outlet pressure；
In safety switch S4, one of normally closed switch is connect in the power supply line all the way of ECU, another normally closed switch connects
On two parallel operation routes connecting with miscellaneous function solenoid valve Y, normal open switch therein is connect miscellaneous function solenoid valve Y's
On independently-powered route；One is wherein also set up on a parallel operation route in the manual start switch S2 for driving field operation；
The pressure switch S3 is set on another parallel operation route；
First relay K1 has the first normally opened contact and the first normally-closed contact, wherein the first normally opened contact connects in the another of ECU
In the power supply line of road, the first normally-closed contact is connect in the power supply line of the second relay K2；
Third relay K3 has third normally opened contact, and third normally opened contact connects the independently-powered line in miscellaneous function solenoid valve Y
On the road；
Second relay K2 has the second normally opened contact, and the second normally opened contact connects on another parallel operation route.
2. engineering machinery miscellaneous function safe starting control device according to claim 1, characterized in that safety switch S4
It include a normal open switch and a normally closed switch in every group of position switch including two groups of interlocking position switch.
3. engineering machinery miscellaneous function safe starting control device according to claim 1, characterized in that miscellaneous function electricity
Diode, anode and the normal open switch in safety switch S4 of the diode are additionally provided on the independently-powered route of magnet valve Y
Connection, cathode are connect through third normally opened contact with miscellaneous function solenoid valve Y.
4. engineering machinery miscellaneous function safe starting control device according to claim 1, characterized in that miscellaneous function is opened
Pass S1 is point-touch switch.
5. engineering machinery miscellaneous function safe starting control device according to claim 1, characterized in that manually boot out
Pass S2 is point-touch switch.
6. engineering machinery miscellaneous function safe starting control device according to claim 5, characterized in that described to open manually
The duration that dynamic switch S2 is pressed is no less than 5 seconds.
7. a kind of engineering machinery miscellaneous function safety starting control method, characterized in that
Be arranged on cab seat an inductive operation machine hand whether position sensor in position；Position sensor triggering the
When one relay K1 power loss, makes wherein power supply line's power loss all the way of Engine ECU, obtain the second relay electric；First relay
When device K1 obtains electric, make Engine ECU wherein power supply line obtains electric all the way, make the second relay electric-loss；
One safety switch S4 is set in driver's cabin, and when safety switch S4 is disconnected, power supply passes through wherein one in safety switch S4
A normally closed switch provides power supply for the another way power supply line of Engine ECU, power supply by safety switch S4 another often
Two parallel operation line powerings of make and break Guan Weiyu miscellaneous function solenoid valve Y connection；When safety switch S4 is closed, power supply passes through
The independently-powered line powering that one of normal open switch in safety switch S4 is miscellaneous function solenoid valve Y；Wherein one simultaneously
One is also set up in alliance electric line in the manual start switch S2 for driving field operation；Pressure is set on another parallel operation route
The second normally opened contact that power switch S3 and the second relay K2 have；Pressure switch S3 is produced by miscellaneous function solenoid valve Y oil outlet
Raw pressure activated closure；
The auxiliary functional switch S1 of one control third relay K3 is set outside driver's cabin；Auxiliary functional switch S1 triggering make third after
When electric appliance K3 obtains electric, the normally opened contact closure of the third relay K3 on independently-powered route is set, is miscellaneous function electromagnetism
Valve Y power supply.
8. engineering machinery miscellaneous function safety starting control method according to claim 7, characterized in that
When operation machine hand is on cab seat, when operating miscellaneous function by non-he or she, the personnel of the operation miscellaneous function are pressed
Lower auxiliary functional switch S1, third relay K3 obtain electric, the normally opened contact closure of third relay K3, miscellaneous function solenoid valve Y
It is connected with safety switch S4, miscellaneous function solenoid valve Y connects the operation for carrying out miscellaneous function.
9. engineering machinery miscellaneous function safety starting control method according to claim 7, characterized in that
When operation machine hand leaves driver's cabin oneself operation miscellaneous function, safety switch S4 is first disconnected, power supply is made to pass through safety open
Closing one of normally closed switch in S4 is that Engine ECU provides power supply, power supply pass through in safety switch S4 another is normally closed
Switch is two parallel operation line powerings connecting with miscellaneous function solenoid valve Y；
Meanwhile 2 power loss of position sensor, the first relay K1 power loss that position sensor 2 controls；First relay K1's is normally closed
Contact obtains electric closure, obtains the second relay K2 electric, the normally opened contact closure of the second relay K2；
Auxiliary functional switch S1 is pressed, obtains third relay K3 electric, the normally opened contact closure of third relay K3；
Manual start switch S2 is pressed again, connects a wherein parallel operation route, and miscellaneous function solenoid valve Y passes through this parallel connection
Power supply line obtains electric, the pressure activated pressure of miscellaneous function solenoid valve Y oil outlet from another normally closed switch of safety switch S4
Switch S3 closure, miscellaneous function solenoid valve Y pass through another parallel operation route where pressure switch S3 from safety switch S4
Another normally closed switch continue to obtain electric maintenance miscellaneous function solenoid valve Y power supply.
10. engineering machinery miscellaneous function safety starting control method according to claim 7, characterized in that
When operation machine hand, which leaves driver's cabin, does not disconnect safety switch S4,2 power loss of position sensor, what position sensor 2 controlled
First relay K1 power loss makes wherein power supply line's power loss all the way of Engine ECU；The normally closed switch of safety switch S4 disconnects,
Make to provide the power supply line of another way power supply also power loss by the normally closed switch Engine ECU of safety switch S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811608142.0A CN109597341B (en) | 2018-12-27 | 2018-12-27 | Safety starting control device and method for auxiliary function of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811608142.0A CN109597341B (en) | 2018-12-27 | 2018-12-27 | Safety starting control device and method for auxiliary function of engineering machinery |
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| Publication Number | Publication Date |
|---|---|
| CN109597341A true CN109597341A (en) | 2019-04-09 |
| CN109597341B CN109597341B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811608142.0A Active CN109597341B (en) | 2018-12-27 | 2018-12-27 | Safety starting control device and method for auxiliary function of engineering machinery |
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| Publication number | Publication date |
|---|---|
| CN109597341B (en) | 2023-10-03 |
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