CN108661809A - Explosion proof forklift racing of the engine Protection control system and control method - Google Patents
Explosion proof forklift racing of the engine Protection control system and control method Download PDFInfo
- Publication number
- CN108661809A CN108661809A CN201810289997.5A CN201810289997A CN108661809A CN 108661809 A CN108661809 A CN 108661809A CN 201810289997 A CN201810289997 A CN 201810289997A CN 108661809 A CN108661809 A CN 108661809A
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof
- engine
- controller
- bracing wire
- 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.)
- Granted
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 19
- 239000010705 motor oil Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
- F02D2011/103—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being alternatively mechanically linked to the pedal or moved by an electric actuator
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a kind of explosion proof forklift racing of the engine Protection control system and control method, including explosion-proof power generator, controller, explosion-proof air inlet stop valve, explosion-proof throttle motor, explosion-proof fuel cut off solenoid valve, bracing wire linkage mechanism and manual flameout pull-cord assembly；Explosion-proof power generator and explosion-proof throttle motor are electrically connected with the controller, explosion-proof fuel cut off solenoid valve is electrically connected with the controller, explosion-proof throttle motor and explosion-proof air inlet stop valve are connect by bracing wire with bracing wire linkage mechanism, and manual flameout pull-cord assembly is connect by bracing wire with bracing wire linkage mechanism.The present invention has the characteristics that automatic decision racing of the engine and Engine active flameout can be completed.
Description
Technical field
The present invention relates to fork truck explosion-proof technology field, more particularly, to one kind can automatic decision racing of the engine, and it is complete
At the explosion proof forklift racing of the engine Protection control system and control method of Engine active flameout.
Background technology
Under containing imflammable gas, combustible dust and the simultaneous hazardous environment of the two, when the engine of fork truck
When there is overspeed situation, the temperature and engine speed of vehicle will be out of hand, if maximum surface temperature is more than imflammable gas
When the minimum ignition temperature of mixture or combustible dust, being attached to these inflammable substances of surface of vehicle can be ignited；
Simultaneously because engine speed out of control and causing, which hits the spark generated, can easily light combustible gas mixture and flammable
Property dust.Therefore, should ensure that can be automatically or by manual when overspeed situation occurs in engine for the design of internal combustion explosion proof forklift
Engine is forced to stop working by mode, thoroughly avoids the vehicle temperature caused by racing of the engine excessively high out of control with engine speed
Wait dangerous situations.
Invention content
The present invention is because of racing of the engine, and to cause fork truck temperature excessively high and engine turn to overcome in the prior art
The problem of speed equal dangerous situations out of control occur, provide one kind can automatic decision racing of the engine, and complete engine actively
Flame-out explosion proof forklift racing of the engine Protection control system and control method.
To achieve the above object, the present invention uses following technical scheme：
A kind of explosion proof forklift racing of the engine Protection control system, including explosion-proof power generator, controller, explosion-proof air inlet stop valve,
Explosion-proof throttle motor, explosion-proof fuel cut off solenoid valve, bracing wire linkage mechanism and manual flameout pull-cord assembly；Explosion-proof power generator and anti-
Quick-fried throttle motor is electrically connected with the controller, and explosion-proof fuel cut off solenoid valve is electrically connected with the controller, explosion-proof throttle motor and anti-
Quick-fried air inlet stop valve is connect by bracing wire with bracing wire linkage mechanism, and manual flameout pull-cord assembly passes through bracing wire and bracing wire gear
Structure connects.
The explosion-proof air inlet stop valve of the present invention is used to control the air inlet of engine, and explosion-proof fuel cut off solenoid valve is for controlling
The fuel feeding of engine oil path, manual flameout pull-cord assembly are turned off manually explosion-proof air inlet stop valve in emergency circumstances forcing, protect
Demonstrate,prove vehicle safety.The present invention has the characteristics that automatic decision racing of the engine and Engine active flameout can be completed.
Preferably, explosion-proof air inlet stop valve includes cut-off valve chest, it is equipped with sealing plate in cut-off valve chest, sealing plate side is set
There are link mechanism, link mechanism to be connect with bracing wire linkage mechanism by bracing wire.When pulling bracing wire, link mechanism revolves counterclockwise
Turning, sealing plate level is driven to move right, is completely attached to until with shut-off valve case inside, air-flow is blocked inside shut-off valve,
To achieve the purpose that cut off engine charge.
Preferably, being equipped with casing in the middle part of sealing plate, sealing plate is slidably connected by casing and link mechanism.Sealing plate and connecting rod machine
Structure is slidably connected so that when link mechanism rotates counterclockwise, sealing plate level can be driven to move right.
Preferably, the invention also includes buzzer and LED warning lamps, buzzer is electric with controller with LED warning lamps
Connection.When in emergency circumstances engine can not auto extinguishing, controller control buzzer sends out alarm sound, and LED warning lamps dodge
It is bright, it prompts driver to need to use manual flameout pull-cord assembly, pressure that explosion-proof air inlet stop valve is turned off manually, completes engine
It is flame-out.
A kind of control method of explosion proof forklift racing of the engine Protection control system, includes the following steps：
（5-1）The explosion-proof limit value of forklift engine rotating speed is preset in controller, controller real-time reception explosion-proof power generator is sent out
Tach signal, and turning for present engine is obtained according to the speed ratio calculation of engine blower wheel and explosion-proof power generator fan wheel
Speed；
（5-2）Controller is by step（5-1）It is middle to calculate the engine speed obtained, turn with preset forklift engine in controller
The explosion-proof limit value of speed is compared, if gained engine speed is less than when preset limit value, controller control is anti-in controller
Quick-fried throttle motor is not powered, and explosion-proof fuel cut off solenoid valve normal power supply is controlled so that explosion-proof air inlet stop valve is normally opened, hair
Motivation oil circuit normal fuel injection, normal working of engine；
（5-3）If gained engine speed is higher than when preset limit value, controller controls explosion-proof fuel-cut electricity in controller
Solenoid valve is cut off, and engine oil path fuel feeding stops, while controller is powered to explosion-proof throttle motor, and explosion-proof throttle motor starts
Work, the bracing wire of explosion-proof throttle motor by bracing wire linkage mechanism pull the link mechanism of explosion-proof air inlet stop valve close by force into
Gas shut-off valve, it is ensured that engine is completely flame-out.
Preferably, the control method of explosion proof forklift racing of the engine Protection control system further includes following steps：
When controller controls explosion-proof fuel cut off solenoid valve for being electrically cut off, and to explosion-proof throttle motor power supply T time after, engine
Still can not auto extinguishing, then controller control buzzer send out alarm sound, the flicker of LED warning lamps prompts driver to need
Using manual flameout pull-cord assembly, engine misses are manually completed.The value range of T time is -10 seconds 5 seconds.
Therefore, the present invention has the advantages that：（1）Can guarantee can be automatic or logical when overspeed situation occurs in engine
Manual mode is crossed to force to stop working by engine；（2）Securely and reliably and it is easily installed maintenance.
Description of the drawings
Fig. 1 is a kind of system structure schematic diagram of the present invention；
Fig. 2 is a kind of structural schematic diagram of the explosion-proof air inlet stop valve in the present invention；
Fig. 3 is a kind of flow chart of the present invention.
In figure：Explosion-proof power generator 1, controller 2, explosion-proof air inlet stop valve 3, explosion-proof throttle motor 4, explosion-proof fuel-cut electricity
Magnet valve 5, bracing wire linkage mechanism 6, manual flameout pull-cord assembly 7, cut-off valve chest 8, sealing plate 9, link mechanism 10, bracing wire 11.
Specific implementation mode
The present invention will be further described with specific implementation mode below in conjunction with the accompanying drawings：
A kind of explosion proof forklift racing of the engine Protection control system as shown in Figure 1, including explosion-proof power generator 1, controller 2 are prevented
Quick-fried air inlet stop valve 3, explosion-proof throttle motor 4, explosion-proof fuel cut off solenoid valve 5, bracing wire linkage mechanism 6 and manual flameout pull-cord are total
At 7；Explosion-proof power generator and explosion-proof throttle motor are electrically connected with the controller, and explosion-proof fuel cut off solenoid valve is electrically connected with controller
It connects, explosion-proof throttle motor and explosion-proof air inlet stop valve are connect by bracing wire 11 with bracing wire linkage mechanism, and manual flameout pull-cord is total
It is connect with bracing wire linkage mechanism at by bracing wire.
As shown in Fig. 2, explosion-proof air inlet stop valve includes cut-off valve chest 8, sealing plate 9, sealing plate one are equipped in cut-off valve chest
Side is equipped with link mechanism 10, and link mechanism is connect by bracing wire with bracing wire linkage mechanism.When pulling bracing wire, the link mechanism inverse time
Needle rotates, and sealing plate level is driven to move right, and is completely attached to until with shut-off valve case inside, air-flow is blocked in shut-off valve
Portion, to achieve the purpose that cut off engine charge.Casing is equipped in the middle part of sealing plate, sealing plate is connected by casing and link mechanism sliding
It connects.Sealing plate is slidably connected with link mechanism so that when link mechanism rotates counterclockwise, sealing plate level can be driven to move right.
In addition, this system further includes buzzer and LED warning lamps, buzzer is electrically connected with the controller with LED warning lamps.
When in emergency circumstances engine can not auto extinguishing, controller control buzzer sends out alarm sound, and the flicker of LED warning lamps carries
Show that driver needs to use manual flameout pull-cord assembly, pressure that explosion-proof air inlet stop valve is turned off manually, completes engine misses.
A kind of control method of explosion proof forklift racing of the engine Protection control system as shown in Figure 3, includes the following steps：
Step 100, the explosion-proof limit value of forklift engine rotating speed, controller real-time reception explosion-proof power generator hair are preset in controller
The tach signal gone out, and turning for present engine is obtained according to the speed ratio calculation of engine blower wheel and explosion-proof power generator fan wheel
Speed；
Step 110, controller will calculate the engine speed of acquisition in step 100, with preset forklift engine in controller
The explosion-proof limit value of rotating speed is compared, if gained engine speed is less than when preset limit value, controller controls in controller
Explosion-proof throttle motor is not powered, and explosion-proof fuel cut off solenoid valve normal power supply is controlled so that and explosion-proof air inlet stop valve is normally opened,
Engine oil path normal fuel injection, normal working of engine；
Step 120, if gained engine speed is higher than when preset limit value, controller controls explosion-proof fuel-cut in controller
For being electrically cut off, engine oil path fuel feeding stops solenoid valve, while controller is powered to explosion-proof throttle motor, and explosion-proof throttle motor is opened
The bracing wire of beginning work, explosion-proof throttle motor pulls the link mechanism of explosion-proof air inlet stop valve to close by force by bracing wire linkage mechanism
Air inlet stop valve, it is ensured that engine is completely flame-out；
Step 130, it supplies to be electrically cut off when controller controls explosion-proof fuel cut off solenoid valve, and powers 5 seconds -10 to explosion-proof throttle motor
After second time, engine still can not auto extinguishing, then controller control buzzer send out alarm sound, the flicker of LED warning lamps carries
Show that driver needs to use manual flameout pull-cord assembly, manually completes engine misses.
It should be understood that this embodiment is only used to illustrate the invention but not to limit the scope of the invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (7)
1. a kind of explosion proof forklift racing of the engine Protection control system, characterized in that including explosion-proof power generator（1）, controller
（2）, explosion-proof air inlet stop valve（3）, explosion-proof throttle motor（4）, explosion-proof fuel cut off solenoid valve（5）, bracing wire linkage mechanism（6）With
Manual flameout pull-cord assembly（7）；Explosion-proof power generator and explosion-proof throttle motor are electrically connected with the controller, explosion-proof fuel-cut electromagnetism
Valve is electrically connected with the controller, and explosion-proof throttle motor and explosion-proof air inlet stop valve pass through bracing wire（11）Connect with bracing wire linkage mechanism
It connects, manual flameout pull-cord assembly is connect by bracing wire with bracing wire linkage mechanism.
2. explosion proof forklift racing of the engine Protection control system according to claim 1, characterized in that explosion-proof air inlet cut-off
Valve includes cut-off valve chest（8）, cut-off valve chest is interior to be equipped with sealing plate（9）, sealing plate side is equipped with link mechanism（10）, link mechanism
It is connect with bracing wire linkage mechanism by bracing wire.
3. explosion proof forklift racing of the engine Protection control system according to claim 2, characterized in that be equipped in the middle part of sealing plate
Casing, sealing plate are slidably connected by casing and link mechanism.
4. explosion proof forklift racing of the engine Protection control system according to claim 1 or 2 or 3, characterized in that further include
Buzzer and LED warning lamps, buzzer are electrically connected with the controller with LED warning lamps.
5. a kind of control method based on the explosion proof forklift racing of the engine Protection control system described in claim 2, feature
It is to include the following steps：
（5-1）The explosion-proof limit value of forklift engine rotating speed is preset in controller, controller real-time reception explosion-proof power generator is sent out
Tach signal, and turning for present engine is obtained according to the speed ratio calculation of engine blower wheel and explosion-proof power generator fan wheel
Speed；
（5-2）Controller is by step（5-1）It is middle to calculate the engine speed obtained, turn with preset forklift engine in controller
The explosion-proof limit value of speed is compared, if gained engine speed is less than when preset limit value, controller control is anti-in controller
Quick-fried throttle motor is not powered, and explosion-proof fuel cut off solenoid valve normal power supply is controlled so that explosion-proof air inlet stop valve is normally opened, hair
Motivation oil circuit normal fuel injection, normal working of engine；
（5-3）If gained engine speed is higher than when preset limit value, controller controls explosion-proof fuel-cut electricity in controller
Solenoid valve is cut off, and engine oil path fuel feeding stops, while controller is powered to explosion-proof throttle motor, and explosion-proof throttle motor starts
Work, the bracing wire of explosion-proof throttle motor by bracing wire linkage mechanism pull the link mechanism of explosion-proof air inlet stop valve close by force into
Gas shut-off valve, it is ensured that engine is completely flame-out.
6. the control method of explosion proof forklift racing of the engine Protection control system according to claim 5, characterized in that also
Including buzzer and LED warning lamps, buzzer is electrically connected with the controller with LED warning lamps；Include the following steps：
（5-4）When controller controls explosion-proof fuel cut off solenoid valve for being electrically cut off, and to explosion-proof throttle motor power supply T time after,
Engine still can not auto extinguishing, then controller control buzzer send out alarm sound, the flicker of LED warning lamps prompts driver
Member needs to use manual flameout pull-cord assembly, manually completes engine misses.
7. the control method of explosion proof forklift racing of the engine Protection control system according to claim 6, characterized in that T
The value range of time is -10 seconds 5 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289997.5A CN108661809B (en) | 2018-04-03 | 2018-04-03 | Overspeed protection control system and control method for engine of explosion-proof forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289997.5A CN108661809B (en) | 2018-04-03 | 2018-04-03 | Overspeed protection control system and control method for engine of explosion-proof forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661809A true CN108661809A (en) | 2018-10-16 |
| CN108661809B CN108661809B (en) | 2021-01-08 |
Family
ID=63782912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289997.5A Active CN108661809B (en) | 2018-04-03 | 2018-04-03 | Overspeed protection control system and control method for engine of explosion-proof forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661809B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425312A (en) * | 2019-09-26 | 2020-07-17 | 扎鲁特旗扎哈淖尔煤业有限公司 | Engine protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902070A (en) * | 1960-02-25 | 1962-07-25 | Nat Mine Service Co | A safety control system for internal combustion engines |
| CN201864531U (en) * | 2010-11-12 | 2011-06-15 | 长沙湘普防爆车辆有限公司 | Explosion-proof diesel forklift |
| CN202091043U (en) * | 2011-06-09 | 2011-12-28 | 东风汽车股份有限公司 | Manual shut-off valve device for mining explosion-proof diesel engine |
| CN103306826A (en) * | 2013-05-17 | 2013-09-18 | 杭叉集团股份有限公司 | Double control air inlet stop valve |
| CN208153167U (en) * | 2018-04-03 | 2018-11-27 | 杭叉集团股份有限公司 | Explosion proof forklift racing of the engine Protection control system |
-
2018
- 2018-04-03 CN CN201810289997.5A patent/CN108661809B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902070A (en) * | 1960-02-25 | 1962-07-25 | Nat Mine Service Co | A safety control system for internal combustion engines |
| CN201864531U (en) * | 2010-11-12 | 2011-06-15 | 长沙湘普防爆车辆有限公司 | Explosion-proof diesel forklift |
| CN202091043U (en) * | 2011-06-09 | 2011-12-28 | 东风汽车股份有限公司 | Manual shut-off valve device for mining explosion-proof diesel engine |
| CN103306826A (en) * | 2013-05-17 | 2013-09-18 | 杭叉集团股份有限公司 | Double control air inlet stop valve |
| CN208153167U (en) * | 2018-04-03 | 2018-11-27 | 杭叉集团股份有限公司 | Explosion proof forklift racing of the engine Protection control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425312A (en) * | 2019-09-26 | 2020-07-17 | 扎鲁特旗扎哈淖尔煤业有限公司 | Engine protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108661809B (en) | 2021-01-08 |
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