CN110282581A - The anti-cargo rollover control system of electri forklift - Google Patents

The anti-cargo rollover control system of electri forklift Download PDF

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Publication number
CN110282581A
CN110282581A CN201910677994.3A CN201910677994A CN110282581A CN 110282581 A CN110282581 A CN 110282581A CN 201910677994 A CN201910677994 A CN 201910677994A CN 110282581 A CN110282581 A CN 110282581A
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CN
China
Prior art keywords
way valve
mouthfuls
ram
motor drive
raising
Prior art date
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Granted
Application number
CN201910677994.3A
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Chinese (zh)
Other versions
CN110282581B (en
Inventor
李凯
王伟
董雯雯
孙红宝
王苏东
王小虎
杜爽
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Xuzhou Xugong Special Construction Machinery Co Ltd
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Xuzhou Xugong Special Construction Machinery Co Ltd
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Priority to CN201910677994.3A priority Critical patent/CN110282581B/en
Publication of CN110282581A publication Critical patent/CN110282581A/en
Application granted granted Critical
Publication of CN110282581B publication Critical patent/CN110282581B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075Constructional features or details
    • B66F9/20Means for actuating or controlling masts, platforms, or forks
    • B66F9/22Hydraulic devices or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08Servomotor systems incorporating electrically operated control means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B2013/0448Actuation by solenoid and permanent magnet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/63Electronic controllers
    • F15B2211/6303Electronic controllers using input signals
    • F15B2211/6306Electronic controllers using input signals representing a pressure
    • F15B2211/6313Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/63Electronic controllers
    • F15B2211/6303Electronic controllers using input signals
    • F15B2211/6336Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The present invention discloses a kind of anti-cargo rollover control system of electri forklift, belongs to special type engineering machinery field of intelligent control technology.Gear pump is connected with inclination multi-way valve, raising multi-way valve;Tilt multi-way valve control connection dump ram;Raising multi-way valve control connection elevating ram;AC motor drive control is connected with pump control motor and traction electric machine;AC motor drive is also connected with the weighing sensor, the linear movement pick-up for detecting elevating ram stroke and the speed probe for detecting traction electric machine revolving speed of the lifting weight for detecting elevating ram.The present invention electri forklift in the process of moving, electric current can be limited to pallet fork hoisting system according to raising goods weight, limitation electric current directly can also be carried out to pallet fork hoisting system, it prevents the cargo as caused by artificial maloperation from tumbling, the operating efficiency of electri forklift is improved on the basis of avoiding safety hazards.

Description

The anti-cargo rollover control system of electri forklift
Technical field
The present invention relates to engineering machinery, and in particular to a kind of anti-cargo rollover control system of electri forklift belongs to extraordinary work Journey intelligent mechanic control technical field.
Background technique
Currently, electri forklift has been widely used in agricultural production and industrial construction in the whole world, it is indispensable special type One of engineering machinery, therefore the requirement to its electric control system is higher and higher, traditional electric forklift running system and pallet fork Hoisting system independent operating can arbitrarily operate hoisting system that is, during electric forklift running.
Although providing pallet fork prohibited acts in relevant operation handbook, walking locking pallet fork equipment is simultaneously impracticable, and The working efficiency of electri forklift is seriously affected, therefore, the control system of electri forklift is there is no handling this function, i.e., electric It is no matter fully loaded or unloaded in electrical forklift walking process, pallet fork can be arbitrarily acted, causes some accidentally behaviour that cargo is tumbled, Even cause some personnel casualty accidents.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention of this reality provides a kind of anti-cargo of electri forklift and tumbles control system System.
The technical solution adopted by the present invention are as follows: a kind of anti-cargo rollover control system of electri forklift, including gear pump, gear Pump is connected with inclination multi-way valve, raising multi-way valve;The inclination multi-way valve control connection dump ram;The raising multi-way valve control System connection elevating ram;
It further include AC motor drive, battery is AC motor drive power supply, and AC motor drive control is connected with Pump control motor and traction electric machine;
The AC motor drive is also connected with the weighing sensor of the lifting weight for detecting elevating ram, for detecting The linear movement pick-up of elevating ram stroke and speed probe for detecting traction electric machine revolving speed;
It is connected with switch electromagnetic valve in oil circuit of the inclination multi-way valve to dump ram, switch electromagnetic valve connects alternating current generator Driver;
The inclination multichannel threshold switch of the inclination multi-way valve connects alternating current generator drive with the raising multichannel threshold switch of raising multi-way valve Dynamic device.
It is further: the end US, VS, WS is connected with pump control motor with conducting wire respectively on the AC motor drive; The end UM, VM, WM is connected with traction electric machine with conducting wire respectively on AC motor drive.
+ 5V, the end AI4 and GND are connected with line level sensor with conducting wire respectively on the AC motor drive;Alternating current + 5V, the end AI5 and GND are connected with weighing sensor with conducting wire respectively on machine driver;+ 5V, AI6 on AC motor drive It is connected respectively with speed probe with conducting wire with the end GND.
The end DI1 is connected with system run switch by conducting wire on the AC motor drive;On AC motor drive The end DI2 is connected with raising multichannel threshold switch with conducting wire;The end DI3 and inclination multichannel threshold switch conducting wire on AC motor drive It is connected.
The end RXD, TXD, GND is connected with display screen by conducting wire on the AC motor drive.
The end DO1 is connected with switch electromagnetic valve with conducting wire on the AC motor drive.
P mouthfuls of tooth connection wheel pump of L mouthfuls of the raising multi-way valve, M mouthfuls of raising multi-way valve connect connection gear by check valve II P mouthfuls of pump, N mouthfuls of connection hydraulic oil containers of raising multi-way valve, U mouthfuls of connection governor valve of J mouthfuls of raising multi-way valve;Described governor valve S mouthfuls and act The connection of oil-lifting jar rodless cavity.
The elevating ram includes elevating ram I, elevating ram II, and elevating ram I, the rodless cavity of elevating ram II are connected It connects;The linear movement pick-up is mounted on elevating ram II, and linear movement pick-up is for detecting II piston rod position of elevating ram It moves;The rodless cavity of the weighing sensor connection elevating ram I, elevating ram II.
F mouthfuls of the inclination multi-way valve are connected with I mouthfuls of raising multi-way valve, and multi-way valve G mouthfuls of inclination is connected by the connection of check valve I P mouthfuls of gear pump are connect, multi-way valve H mouthfuls of connection hydraulic oil container is tilted;Multi-way valve C mouthfuls of connection hydraulic oil container is tilted, tilts multi-way valve D mouthfuls Dump ram rod chamber is connected, tilts multi-way valve E mouthfuls B mouthfuls of connection switch solenoid valve;The switch electromagnetic valve A mouthfuls of connections inclination oil Cylinder rodless cavity.
The dump ram includes dump ram I, dump ram II, dump ram I, II rod chamber oil pipe of dump ram It is connected, dump ram I, II rodless cavity of dump ram are connected with oil pipe.
The present invention electri forklift in the process of moving, can according to raising goods weight to pallet fork hoisting system limit electricity Stream, directly can also carry out limitation electric current to pallet fork hoisting system, such as: when electri forklift travel speed is more than 5km/h, raising Height is more than 300mm and when raising goods weight is more than the 10% of rated load, then pallet fork can execute hypsokinesis movement, locking goods Pitch forward swing.Display screen is used to monitor entire control system in the present invention, at the same can be adjusted according to specific operating condition travel speed, Three parameter logistics of lifting altitude and goods weight lean forward locked to carry out pallet fork, adapt to a variety of different occasions.
Compared with prior art, the beneficial effects of the present invention are: according to the real-time working condition of fork truck, pallet fork hoisting system is limited Electric current processed prevents the cargo as caused by artificial maloperation from tumbling, and electri forklift is improved on the basis of avoiding safety hazards Operating efficiency.
Detailed description of the invention
Fig. 1 is principle of the invention figure;
In figure: 1 battery, 2 system run switch, 3 raising multichannel threshold switch, 4 inclination multichannel threshold switch, 5 linear movement pick-ups, 6 weighing sensors, 7 speed probes, 8 display screens, 9 inclination multi-way valves, 10 check valves I, 11 raising multi-way valves, 12 check valves II, 13 overflow valves, 14 hydraulic oil containers, 15 gear pumps, 16 governor valves, 17 elevating rams I, 18 elevating rams II, 19 dump rams I, 20 dump rams II, 21 switch electromagnetic valves, 22 pump control motors, 23 traction electric machines, 24 AC motor drives.
Specific embodiment
The present invention will be further explained combined with specific embodiments below.
As shown in connection with fig. 1, the anti-cargo rollover control system of a kind of electri forklift, the end AC motor drive BAT+ and electric power storage The anode in pond 1 is connected with conducting wire, and the end BAT- is connected with the cathode of battery 1 with conducting wire;The end DI1 and system run switch 2 It is connected with conducting wire;The end DI2 is connected with raising multichannel threshold switch 3 with conducting wire;The end DI3 and inclination multichannel threshold switch 4 use conducting wire It is connected;+ 5V, the end AI4 and GND are connected with line level sensor 5 with conducting wire respectively;+ 5V, the end AI5 and GND are passed with weighing respectively Sensor 6 is connected with conducting wire;+ 5V, the end AI6 and GND are connected with speed probe 7 with conducting wire respectively;The end RXD, TXD, GND point Do not use conducting wire to connection with display screen 8;The end DO1 is connected with switch electromagnetic valve 21 with conducting wire;It is controlled respectively with pump at the end US, VS, WS Motor 22 is connected with conducting wire;The end UM, VM, WM is connected with traction electric machine 23 with conducting wire respectively.
Gear pump 15P is driven by pump control motor 22, connects overflow valve between gear pump 15P oil outlet P and hydraulic oil container 14 13.15P mouthfuls of tooth connection wheel pump of 11L mouthfuls of raising multi-way valve, M mouthfuls connect 15P mouthfuls of tooth connection wheel pump by check valve II 12, N mouthfuls of companies Hydraulic oil container 14 is connect, J mouthfuls 16U mouthfuls of connection governor valve, 16S mouthfuls of governor valve connect with elevating ram rodless cavity.Elevating ram includes Elevating ram I 17, elevating ram II 18, elevating ram I 17, elevating ram II 18 rodless cavity be connected.
Multi-way valve 9F mouthfuls of inclination is connected with 11I mouthfuls of raising multi-way valve, and G mouthfuls connect tooth connection wheel pump by check valve I 10 15P mouthfuls, H mouthfuls of connection hydraulic oil containers 14, C mouthfuls of connection hydraulic oil containers 14, D mouthfuls of connection dump ram rod chambers, E mouthfuls of connection switch electricity 21B mouthfuls of magnet valve;21A mouthfuls of connection dump ram rodless cavities of switch electromagnetic valve.Dump ram includes dump ram I 19, dump ram II 20, dump ram I 19, II 20 rod chamber of dump ram are connected with oil pipe, and dump ram I 19, dump ram II 20 are without bar Chamber is connected with oil pipe.
Linear movement pick-up 5 is mounted on elevating ram II 18, for detecting elevating ram stroke.Weighing sensor 6 connects The rodless cavity for connecing elevating ram I 17, elevating ram II 18, for detecting the lifting weight of elevating ram.Speed probe 7 is integrated On traction electric machine 23, for detecting motor speed.
Display screen 8 is used to monitor entire control system, at the same can be adjusted according to specific operating condition travel speed, lifting altitude and Three parameter logistics of goods weight come carry out pallet fork lean forward it is locked.
Working principle:
After booting, progress self-test first, if self-test does not pass through, warning note, shutdown inspection failure;
If self-test passes through, when electri forklift in the process of moving, according to raising goods weight to pallet fork hoisting system limit electric current, Limitation electric current directly can also be carried out to pallet fork hoisting system, such as: when electri forklift travel speed is more than 5km/h, plays raising It spends more than 300mm and when raising goods weight is more than the 10% of rated load, then pallet fork can execute hypsokinesis movement, locking pallet fork Forward swing.The present embodiment can also adjust above-mentioned three kinds of parameter logistics according to operating condition by display screen, adapt to a variety of different fields It closes, avoids safety hazards caused by maloperation, improve the operating efficiency of electri forklift.
The above is only a preferred embodiment of the present invention, meanwhile, without departing from the principle of the present invention, may be used also To make several improvements and modifications, these modifications and embellishments should also be considered as the scope of protection of the present invention.

Claims (10)

1. a kind of anti-cargo rollover control system of electri forklift, including gear pump (15), gear pump (15) are connected with inclination multichannel Valve (9), raising multi-way valve (11);Inclination multi-way valve (9) the control connection dump ram;Raising multi-way valve (11) control Connect elevating ram;
It is characterized by:
It further include AC motor drive (24), battery (1) is AC motor drive (24) power supply, AC motor drive (24) control is connected with pump control motor (22) and traction electric machine (23);
The AC motor drive (24) be also connected with the lifting weight for detecting elevating ram weighing sensor (6), Speed probe for detecting the linear movement pick-up (5) of elevating ram stroke and for detecting traction electric machine (23) revolving speed (7);
It is connected with switch electromagnetic valve (21) in oil circuit of inclination multi-way valve (9) to dump ram, switch electromagnetic valve (21) It connects AC motor drive (24);
The inclination multichannel threshold switch (4) of inclination multi-way valve (9) and the raising multichannel threshold switch (3) of raising multi-way valve (11) connect Connect AC motor drive (24).
2. the anti-cargo rollover control system of electri forklift according to claim 1, it is characterised in that: the alternating current generator drives The end US, VS, WS is connected with pump control motor (22) with conducting wire respectively on dynamic device (24);UM, VM on AC motor drive (24), The end WM is connected with traction electric machine (23) with conducting wire respectively.
3. the anti-cargo rollover control system of electri forklift according to claim 1, it is characterised in that: the alternating current generator drives + 5V, the end AI4 and GND are connected with line level sensor (5) with conducting wire respectively on dynamic device (24);On AC motor drive (24)+ The end 5V, AI5 and GND is connected with weighing sensor (6) with conducting wire respectively;+ 5V, AI6 and GND on AC motor drive (24) End is connected with speed probe (7) with conducting wire respectively.
4. the anti-cargo rollover control system of electri forklift according to claim 1, it is characterised in that: the alternating current generator drives The end DI1 is connected with system run switch (2) by conducting wire on dynamic device (24);The end DI2 and raising on AC motor drive (24) Multichannel threshold switch (3) is connected with conducting wire;Conducting wire is used in the end DI3 and inclination multichannel threshold switch (4) on AC motor drive (24) It is connected.
5. the anti-cargo rollover control system of electri forklift according to claim 1, it is characterised in that: the alternating current generator drives The end RXD, TXD, GND is connected with display screen (8) by conducting wire on dynamic device (24).
6. the anti-cargo rollover control system of electri forklift according to claim 1, it is characterised in that: the alternating current generator drives The end DO1 is connected with switch electromagnetic valve (21) with conducting wire on dynamic device (24).
7. the anti-cargo rollover control system of electri forklift according to claim 1, it is characterised in that: the raising multi-way valve (11) L mouthfuls of P mouthfuls of tooth connection wheel pumps (15), M mouthfuls of raising multi-way valve (11) connect tooth connection wheel pump (15) P by check valve II (12) Mouthful, N mouthfuls of connection hydraulic oil containers (14) of raising multi-way valve (11), J mouthfuls of U mouthfuls of connection governor valves (16) of raising multi-way valve (11);It is described S mouthfuls of governor valve (16) is connect with elevating ram rodless cavity.
8. the anti-cargo rollover control system of electri forklift according to claim 7, it is characterised in that: the elevating ram packet Include elevating ram I (17), elevating ram II (18), elevating ram I (17), elevating ram II (18) rodless cavity be connected;Institute It states linear movement pick-up (5) to be mounted on elevating ram II (18), linear movement pick-up (5) is for detecting elevating ram II (18) Piston rod displacement;The weighing sensor (6) connects the rodless cavity of elevating ram I (17), elevating ram II (18).
9. the anti-cargo rollover control system of electri forklift according to claim 7, it is characterised in that: the inclination multi-way valve (9) F mouthfuls with raising multi-way valve (11) I mouthfuls be connected, inclination G mouthful of multi-way valve (9) passes through check valve I (10) connection tooth connection wheel pump (15) P mouthfuls, multi-way valve (9) H mouthfuls of connection hydraulic oil containers (14) are tilted;Multi-way valve (9) C mouthfuls of connection hydraulic oil containers (14) are tilted, are inclined D mouthfuls of connection dump ram rod chambers of oblique multi-way valve (9), tilt multi-way valve (9) E mouthfuls of B mouthfuls of connection switch solenoid valves (21);It is described to open A mouthfuls of connection dump ram rodless cavities of powered-down magnet valve (21).
10. the anti-cargo rollover control system of electri forklift according to claim 9, it is characterised in that: the dump ram Including dump ram I (19), dump ram II (20), dump ram I (19), dump ram II (20) rod chamber are connected with oil pipe Logical, dump ram I (19), dump ram II (20) rodless cavity are connected with oil pipe.
CN201910677994.3A 2019-07-25 2019-07-25 Anti-tipping control system for electric forklift Active CN110282581B (en)

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Application Number Priority Date Filing Date Title
CN201910677994.3A CN110282581B (en) 2019-07-25 2019-07-25 Anti-tipping control system for electric forklift

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Application Number Priority Date Filing Date Title
CN201910677994.3A CN110282581B (en) 2019-07-25 2019-07-25 Anti-tipping control system for electric forklift

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CN110282581B CN110282581B (en) 2024-05-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110803658A (en) * 2019-11-14 2020-02-18 浙江力普物流技术有限公司 Weighing system starting device of weighing forklift and weighing method thereof
CN110963442A (en) * 2019-09-25 2020-04-07 郑州嘉晨电器有限公司 Control method for safe lifting operation of industrial vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711221A (en) * 2008-02-04 2010-05-19 浙江佳力科技股份有限公司 Full hydraulic AC electrical forklift
CN201962040U (en) * 2011-02-21 2011-09-07 安徽合力股份有限公司 Forklift hydraulic system with functions of priority and unloading
CN106082038A (en) * 2016-08-13 2016-11-09 安徽合力股份有限公司 A kind of fool proof forklift hydraulic system
CN108516505A (en) * 2018-03-23 2018-09-11 杭叉集团股份有限公司 Fork truck work safety control and control method
CN210366880U (en) * 2019-07-25 2020-04-21 徐州徐工特种工程机械有限公司 Goods rollover prevention control system of electric forklift

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101711221A (en) * 2008-02-04 2010-05-19 浙江佳力科技股份有限公司 Full hydraulic AC electrical forklift
CN201962040U (en) * 2011-02-21 2011-09-07 安徽合力股份有限公司 Forklift hydraulic system with functions of priority and unloading
CN106082038A (en) * 2016-08-13 2016-11-09 安徽合力股份有限公司 A kind of fool proof forklift hydraulic system
CN108516505A (en) * 2018-03-23 2018-09-11 杭叉集团股份有限公司 Fork truck work safety control and control method
CN210366880U (en) * 2019-07-25 2020-04-21 徐州徐工特种工程机械有限公司 Goods rollover prevention control system of electric forklift

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110963442A (en) * 2019-09-25 2020-04-07 郑州嘉晨电器有限公司 Control method for safe lifting operation of industrial vehicle
CN110803658A (en) * 2019-11-14 2020-02-18 浙江力普物流技术有限公司 Weighing system starting device of weighing forklift and weighing method thereof

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