CN110282581A - The anti-cargo rollover control system of electri forklift - Google Patents
The anti-cargo rollover control system of electri forklift Download PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- way valve
- mouthfuls
- ram
- motor drive
- raising
- 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.)
- Pending
Links
- 230000003028 elevating effect Effects 0.000 claims abstract description 41
- 238000005303 weighing Methods 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 10
- MFOUDYKPLGXPGO-UHFFFAOYSA-N propachlor Chemical compound ClCC(=O)N(C(C)C)C1=CC=CC=C1 MFOUDYKPLGXPGO-UHFFFAOYSA-N 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices 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
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid 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
- F15B2013/0448—Actuation by solenoid and permanent magnet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
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
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677994.3A CN110282581A (en) | 2019-07-25 | 2019-07-25 | The anti-cargo rollover control system of electri forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677994.3A CN110282581A (en) | 2019-07-25 | 2019-07-25 | The anti-cargo rollover control system of electri forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110282581A true CN110282581A (en) | 2019-09-27 |
Family
ID=68023996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910677994.3A Pending CN110282581A (en) | 2019-07-25 | 2019-07-25 | The anti-cargo rollover control system of electri forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110282581A (en) |
Cited By (1)
| 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 |
Citations (5)
| 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 |
-
2019
- 2019-07-25 CN CN201910677994.3A patent/CN110282581A/en active Pending
Patent Citations (5)
| 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 (1)
| 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 |
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