CN110282581B - Anti-tipping control system for electric forklift - Google Patents
Anti-tipping control system for electric forklift Download PDFInfo
- Publication number
- CN110282581B CN110282581B CN201910677994.3A CN201910677994A CN110282581B CN 110282581 B CN110282581 B CN 110282581B CN 201910677994 A CN201910677994 A CN 201910677994A CN 110282581 B CN110282581 B CN 110282581B
- Authority
- CN
- China
- Prior art keywords
- lifting
- oil cylinder
- way valve
- port
- motor driver
- 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.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 65
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009439 industrial construction 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a cargo tipping prevention control system of an electric forklift, and belongs to the technical field of intelligent control of special engineering machinery. The gear pump is connected with an inclined multi-way valve and a lifting multi-way valve; the inclined multi-way valve is connected with the inclined oil cylinder in a control way; the lifting multi-way valve is connected with the lifting oil cylinder in a control way; the alternating current motor driver is in control connection with a pump control motor and a traction motor; the alternating current motor driver is also connected with a weighing sensor for detecting the lifting weight of the lifting oil cylinder, a linear displacement sensor for detecting the stroke of the lifting oil cylinder and a rotating speed sensor for detecting the rotating speed of the traction motor. According to the invention, in the running process of the electric fork truck, the current of the fork lifting system can be limited according to the weight of the lifted goods, and the current of the fork lifting system can be directly limited, so that the goods can be prevented from tipping caused by manual misoperation, and the operation efficiency of the electric fork truck is improved on the basis of avoiding safety accidents.
Description
Technical Field
The invention relates to engineering machinery, in particular to an electric forklift anti-tipping control system, and belongs to the technical field of intelligent control of special engineering machinery.
Background
At present, the electric fork lift truck is widely applied to agricultural production and industrial construction in the world, and is one of indispensable special engineering machinery, so that the requirements on an electric control system of the electric fork lift truck are higher and higher, and a traditional electric fork lift truck running system and a fork lifting system independently run, namely, the lifting system can be operated at will in the running process of the electric fork lift truck.
Although the fork is prohibited in the related operation manual, the walking locking fork working device is not practical and seriously affects the working efficiency of the electric fork-lift, so that the control system of the electric fork-lift does not process the function, namely, the fork can be arbitrarily operated no matter in the running process of the electric fork-lift, so that the goods are overturned by some misoperation, and even some casualties are caused.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an anti-tipping control system for goods of an electric forklift.
The invention adopts the technical scheme that: the control system for preventing the goods from tipping of the electric forklift comprises a gear pump, wherein the gear pump is connected with an inclined multi-way valve and a lifting multi-way valve; the inclined multi-way valve is in control connection with the inclined oil cylinder; the lifting multi-way valve is in control connection with the lifting oil cylinder;
The motor also comprises an alternating current motor driver, the storage battery supplies power for the alternating current motor driver, and the alternating current motor driver is connected with a pump control motor and a traction motor in a control manner;
the alternating current motor driver is also connected with a weighing sensor for detecting lifting weight of the lifting oil cylinder, a linear displacement sensor for detecting stroke of the lifting oil cylinder and a rotating speed sensor for detecting rotating speed of the traction motor;
An on-off electromagnetic valve is connected in an oil path from the inclined multi-way valve to the inclined oil cylinder, and the on-off electromagnetic valve is connected with an alternating current motor driver;
the inclined multi-way valve switch of the inclined multi-way valve and the lifting multi-way valve switch of the lifting multi-way valve are connected with an alternating current motor driver.
It is further: the ends of the US, the VS and the WS on the alternating current motor driver are respectively connected with a pump control motor through wires; UM, VM, WM end on the AC motor driver are connected with traction motor with the wire respectively.
The +5V, AI4 and GND end of the alternating current motor driver are respectively connected with the wire for the wire position sensor; the +5V, AI end and the GND end of the alternating current motor driver are respectively connected with the weighing sensor through wires; the +5V, AI end and the GND end of the alternating current motor driver are respectively connected with the rotating speed sensor through wires.
The DI1 end of the alternating current motor driver is connected with a system running switch through a wire; the DI2 end of the AC motor driver is connected with the lifting multi-way valve switch by a wire; the DI3 end of the AC motor driver is connected with the inclined multiway valve switch by a wire.
The upper RXD, TXD, GND end of the alternating current motor driver is connected with a display screen through a wire.
The DO1 end of the alternating current motor driver is connected with the switch electromagnetic valve through a wire.
The lifting multi-way valve L is connected with the gear pump P, the lifting multi-way valve M is connected with the gear pump P through the one-way valve II, the lifting multi-way valve N is connected with the hydraulic oil tank, and the lifting multi-way valve J is connected with the speed limiting valve U; and the S port of the speed limiting valve is connected with the rodless cavity of the lifting oil cylinder.
The lifting oil cylinder comprises a lifting oil cylinder I and a lifting oil cylinder II, and rodless cavities of the lifting oil cylinder I and the lifting oil cylinder II are connected; the linear displacement sensor is arranged on the lifting oil cylinder II and is used for detecting the displacement of a piston rod of the lifting oil cylinder II; the weighing sensor is connected with a rodless cavity of the lifting oil cylinder I and the lifting oil cylinder II.
The port F of the inclined multi-way valve is connected with the port I of the lifting multi-way valve, the port G of the inclined multi-way valve is connected with the port P of the gear pump through the one-way valve I, and the port H of the inclined multi-way valve is connected with the hydraulic oil tank; the port C of the inclined multi-way valve is connected with a hydraulic oil tank, the port D of the inclined multi-way valve is connected with a rod cavity of an inclined oil cylinder, and the port E of the inclined multi-way valve is connected with the port B of the switch electromagnetic valve; and an opening A of the switch electromagnetic valve is connected with a rodless cavity of the inclined oil cylinder.
The tilting cylinder comprises a tilting cylinder I and a tilting cylinder II, wherein rod cavities of the tilting cylinder I and the tilting cylinder II are communicated through oil pipes, and rodless cavities of the tilting cylinder I and the tilting cylinder II are communicated through oil pipes.
In the running process of the electric forklift, the invention can limit the current of the fork lifting system according to the weight of the lifted goods, and can also directly limit the current of the fork lifting system, for example: when the running speed of the electric forklift exceeds 5km/h, the lifting height exceeds 300mm and the weight of the lifted goods exceeds 10% of the rated load, the fork can execute backward tilting action, and the forward tilting action of the fork is locked. The display screen is used for monitoring the whole control system, and simultaneously can adjust the three parameter proportions of the running speed, the lifting height and the weight of the goods according to specific working conditions to lock the fork forwards, so that the invention is suitable for various different occasions.
Compared with the prior art, the invention has the beneficial effects that: according to the real-time working condition of the forklift, the current is limited for the fork lifting system, the goods are prevented from tipping caused by manual misoperation, and the operation efficiency of the electric forklift is improved on the basis of avoiding safety accidents.
Drawings
FIG. 1 is a schematic diagram of the present invention;
in the figure: the device comprises a storage battery 1, a system operation switch 2, a lifting multi-way valve switch 3, an inclined multi-way valve switch 4, a linear displacement sensor 5, a weighing sensor 6, a rotating speed sensor 7, a display screen 8, an inclined multi-way valve 9, a one-way valve I10, a lifting multi-way valve 11, a one-way valve II 12, an overflow valve 13, a hydraulic oil tank 14, a gear pump 15, a speed limiting valve 16, a lifting oil cylinder I17, a lifting oil cylinder II 18, an inclined oil cylinder I19, an inclined oil cylinder II 20, a switching electromagnetic valve 21, a pump control motor 22, a traction motor 23 and an alternating current motor driver 24.
Detailed Description
The invention will be further described with reference to specific examples.
Referring to fig. 1, an anti-tipping control system of an electric forklift is disclosed, wherein the BAT+ end of an alternating current motor driver is connected with the positive electrode of a storage battery 1 through a wire, and the BAT-end is connected with the negative electrode of the storage battery 1 through a wire; the DI1 end is connected with a system operation switch 2 by a wire; the DI2 end is connected with the lifting multi-way valve switch 3 by a wire; the DI3 end is connected with the inclined multi-way valve switch 4 by a wire; the +5V, AI end and the GND end are respectively connected with the line position sensor 5 by leads; the +5V, AI end and the GND end are respectively connected with the weighing sensor 6 by leads; the +5V, AI end and the GND end are respectively connected with the rotation speed sensor 7 by leads; the RXD, TXD, GND ends are respectively connected with the display screen 8 by leads; the DO1 end is connected with the switch electromagnetic valve 21 by a wire; the ends US, VS and WS are respectively connected with a pump control motor 22 by leads; UM, VM, WM ends are connected with traction motor 23 by wires, respectively.
The gear pump 15P is driven by a pump control motor 22, and an overflow valve 13 is connected between an oil outlet P of the gear pump 15P and the hydraulic oil tank 14. The lifting multi-way valve 11L is connected with the gear pump 15P, the M is connected with the gear pump 15P through the one-way valve II 12, the N is connected with the hydraulic oil tank 14, the J is connected with the speed limiting valve 16U, and the speed limiting valve 16S is connected with the rodless cavity of the lifting oil cylinder. The lifting oil cylinder comprises a lifting oil cylinder I17 and a lifting oil cylinder II 18, and rodless cavities of the lifting oil cylinder I17 and the lifting oil cylinder II 18 are connected.
The port F of the inclined multi-way valve 9 is connected with the port I of the lifting multi-way valve 11, the port G is connected with the port P of the gear pump 15 through the one-way valve I10, the port H is connected with the hydraulic oil tank 14, the port C is connected with the hydraulic oil tank 14, the port D is connected with the rod cavity of the inclined oil cylinder, and the port E is connected with the port B of the switch electromagnetic valve 21; the opening of the switch electromagnetic valve 21A is connected with the rodless cavity of the tilting cylinder. The tilting cylinder comprises a tilting cylinder I19 and a tilting cylinder II 20, wherein the tilting cylinder I19 and the tilting cylinder II 20 are communicated through oil pipes with rod cavities, and the tilting cylinder I19 and the tilting cylinder II 20 are communicated through oil pipes without rod cavities.
The linear displacement sensor 5 is arranged on the lifting oil cylinder II 18 and is used for detecting the stroke of the lifting oil cylinder. The weighing sensor 6 is connected with rodless cavities of the lifting oil cylinders I17 and II 18 and is used for detecting lifting weight of the lifting oil cylinders. The rotational speed sensor 7 is integrated on the traction motor 23 for detecting the motor rotational speed.
The display screen 8 is used for monitoring the whole control system, and simultaneously can adjust three parameter proportions of the running speed, the lifting height and the weight of goods according to specific working conditions to lock the fork forwards.
Working principle:
after the machine is started, firstly, performing self-checking, and if the self-checking does not pass, prompting an alarm, and stopping the machine to check faults;
If the self-checking is passed, when the electric fork truck is in the running process, the current is limited to the fork lifting system according to the weight of the lifted goods, and the current can also be directly limited to the fork lifting system, for example: when the running speed of the electric forklift exceeds 5km/h, the lifting height exceeds 300mm and the weight of the lifted goods exceeds 10% of the rated load, the fork can execute backward tilting action, and the forward tilting action of the fork is locked. The embodiment can also adjust the proportion of the three parameters according to the working conditions through the display screen, adapt to various different occasions, avoid safety accidents caused by misoperation, and improve the working efficiency of the electric forklift.
While the foregoing is directed to the preferred embodiments of the present invention, other and further modifications and changes may be made without departing from the principles of the present invention, such modifications and changes are to be regarded as being within the scope of the invention.
Claims (10)
1. The anti-tipping control system of the electric forklift comprises a gear pump (15), wherein the gear pump (15) is connected with an inclined multi-way valve (9) and a lifting multi-way valve (11); the inclined multi-way valve (9) is in control connection with the inclined oil cylinder; the lifting multi-way valve (11) is in control connection with a lifting oil cylinder;
the method is characterized in that:
the motor also comprises an alternating current motor driver (24), the storage battery (1) supplies power for the alternating current motor driver (24), and the alternating current motor driver (24) is connected with a pump control motor (22) and a traction motor (23) in a control way;
The alternating current motor driver (24) is also connected with a weighing sensor (6) for detecting the lifting weight of the lifting oil cylinder, a linear displacement sensor (5) for detecting the stroke of the lifting oil cylinder and a rotating speed sensor (7) for detecting the rotating speed of the traction motor (23);
An on-off electromagnetic valve (21) is connected in an oil path from the inclined multi-way valve (9) to the inclined oil cylinder, and the on-off electromagnetic valve (21) is connected with an alternating current motor driver (24);
The inclined multi-way valve switch (4) of the inclined multi-way valve (9) and the lifting multi-way valve switch (3) of the lifting multi-way valve (11) are connected with an alternating current motor driver (24).
2. The electric fork truck anti-rollover control system as recited in claim 1, wherein: the ends of US, VS and WS on the alternating current motor driver (24) are respectively connected with a pump control motor (22) by leads; UM, VM, WM ends on the AC motor driver (24) are respectively connected with the traction motor (23) by leads.
3. The electric fork truck anti-rollover control system as recited in claim 1, wherein: the +5V, AI4 and GND end of the alternating current motor driver (24) are respectively connected with the linear displacement sensor (5) by leads; the +5V, AI and GND end of the AC motor driver (24) are respectively connected with the weighing sensor (6) by leads; the +5V, AI end and the GND end of the alternating current motor driver (24) are respectively connected with the rotating speed sensor (7) by leads.
4. The electric fork truck anti-rollover control system as recited in claim 1, wherein: the DI1 end of the alternating current motor driver (24) is connected with a system running switch (2) through a wire; the DI2 end of the AC motor driver (24) is connected with the lifting multi-way valve switch (3) by a lead; the DI3 end of the AC motor driver (24) is connected with the inclined multiway valve switch (4) by a lead.
5. The electric fork truck anti-rollover control system as recited in claim 1, wherein: the upper RXD, TXD, GND end of the alternating current motor driver (24) is connected with a display screen (8) through a wire.
6. The electric fork truck anti-rollover control system as recited in claim 1, wherein: the DO1 end of the alternating current motor driver (24) is connected with the switch electromagnetic valve (21) through a wire.
7. The electric fork truck anti-rollover control system as recited in claim 1, wherein: the lifting multi-way valve (11) is connected with the P port of the gear pump (15), the M port of the lifting multi-way valve (11) is connected with the P port of the gear pump (15) through the one-way valve II (12), the N port of the lifting multi-way valve (11) is connected with the hydraulic oil tank (14), and the J port of the lifting multi-way valve (11) is connected with the U port of the speed limiting valve (16); and an S port of the speed limiting valve (16) is connected with a rodless cavity of the lifting oil cylinder.
8. The electric fork truck anti-rollover control system as recited in claim 7, wherein: the lifting oil cylinder comprises a lifting oil cylinder I (17) and a lifting oil cylinder II (18), and rodless cavities of the lifting oil cylinder I (17) and the lifting oil cylinder II (18) are connected; the linear displacement sensor (5) is arranged on the lifting oil cylinder II (18), and the linear displacement sensor (5) is used for detecting the displacement of a piston rod of the lifting oil cylinder II (18); the weighing sensor (6) is connected with rodless cavities of a lifting oil cylinder I (17) and a lifting oil cylinder II (18).
9. The electric fork truck anti-rollover control system as recited in claim 7, wherein: the port F of the inclined multi-way valve (9) is connected with the port I of the lifting multi-way valve (11), the port G of the inclined multi-way valve (9) is connected with the port P of the gear pump (15) through the one-way valve I (10), and the port H of the inclined multi-way valve (9) is connected with the hydraulic oil tank (14); the port C of the inclined multi-way valve (9) is connected with a hydraulic oil tank (14), the port D of the inclined multi-way valve (9) is connected with a rod cavity of an inclined oil cylinder, and the port E of the inclined multi-way valve (9) is connected with the port B of the switching electromagnetic valve (21); and an opening A of the switch electromagnetic valve (21) is connected with a rodless cavity of the inclined oil cylinder.
10. The electric fork truck anti-rollover control system as recited in claim 9, wherein: the tilting oil cylinder comprises a tilting oil cylinder I (19) and a tilting oil cylinder II (20), wherein the tilting oil cylinder I (19) and the tilting oil cylinder II (20) are communicated through oil pipes with rod cavities, and the tilting oil cylinder I (19) and the tilting oil cylinder II (20) are communicated through oil pipes without rod cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677994.3A CN110282581B (en) | 2019-07-25 | 2019-07-25 | Anti-tipping control system for electric forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677994.3A CN110282581B (en) | 2019-07-25 | 2019-07-25 | Anti-tipping control system for electric forklift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110282581A CN110282581A (en) | 2019-09-27 |
| CN110282581B true CN110282581B (en) | 2024-05-28 |
Family
ID=68023996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910677994.3A Active CN110282581B (en) | 2019-07-25 | 2019-07-25 | Anti-tipping control system for electric forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110282581B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390198B (en) * | 2019-09-25 | 2022-01-18 | 河南嘉晨智能控制股份有限公司 | Method for screening lifting current in vehicle safety operation |
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/CN110282581B/en active Active
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110282581A (en) | 2019-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108516505B (en) | Forklift work safety control device and control method | |
| CN102616705B (en) | Energy-saving forklift hydraulic system with energy recovery function | |
| CN110282581B (en) | Anti-tipping control system for electric forklift | |
| CN112811361B (en) | Safety control system for operation fork of manual control valve of forklift | |
| CN103950870A (en) | Forklift hydraulic system with energy recovery and double-pump oil supply functions | |
| CN210366880U (en) | Goods rollover prevention control system of electric forklift | |
| CN202245781U (en) | Control system of crane with truss arm | |
| CN102259816B (en) | Operation safety control system for internal combustion forklift truck | |
| CN102628465A (en) | Energy recovery type lifting hydraulic system for hoisting and conveying machine | |
| CN110407102A (en) | A kind of straight-arm lorry-mounted crane receives hook hydraulic system automatically | |
| CN209906300U (en) | Electric fork-lift linkage interlocking control system | |
| RU2539442C2 (en) | Small-sized electric lift truck | |
| CN204474257U (en) | The hydraulic control device of hydraulic support leg | |
| CN201737609U (en) | Simple moment limit device | |
| CN110065912B (en) | Linkage interlocking control system of electric forklift | |
| CN106082039A (en) | A kind of speed limiting safety system of high-order stacking door frame | |
| CN210884967U (en) | Automatic hook-retracting hydraulic system of straight-arm lorry-mounted crane | |
| CN202545431U (en) | Energy recycling-type hoisting hydraulic system for hoisting and conveying machinery | |
| CN207361716U (en) | A kind of hydraulic forklift hoisting apparatus | |
| CN107089627A (en) | A kind of protection system applied to aerial work platform arm support end of travel protecting against shock | |
| CN210655927U (en) | Automatic hook-retracting and overload-preventing hydraulic system suitable for straight-arm lorry-mounted crane | |
| CN208308294U (en) | A kind of crane hanging component angle detection device | |
| CN103130045B (en) | Dual-drive hydraulic power unit used by hydraulic elevator | |
| CN207046705U (en) | A kind of small-sized shield rope crane using double-speed motor | |
| CN207361718U (en) | A kind of hydraulic forklift controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |