CN104030197B - Control the device and method of forklift lifting speed - Google Patents
Control the device and method of forklift lifting speed Download PDFInfo
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- CN104030197B CN104030197B CN201410038555.5A CN201410038555A CN104030197B CN 104030197 B CN104030197 B CN 104030197B CN 201410038555 A CN201410038555 A CN 201410038555A CN 104030197 B CN104030197 B CN 104030197B
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Abstract
The invention discloses a kind of device and method controlling forklift lifting speed, relate to fork truck manufacturing technology field；It includes for receiving, process input signal and exporting the controller of control signal control engine；For detecting the walking acceleration sensor of accelerating throttle aperture size, for detecting the door frame lifting sensor of lifting valve core of multiway valve aperture size, for detecting the door frame inclination sensor of valve core of multiway valve aperture size, seat switch on the seat is the most correctly sat, for the calibration switch of calibration sensor input range with for indicating the indicator lamp of the state of controller to be all connected with controller for testing staff.It is big that it can solve labor intensity of operating staff, and fuel oil is wasted, the problem that hydraulic oil temperature is high.
Description
Technical field
The present invention relates to fork truck manufacturing technology field, a kind of for E-Gas engine or the device and method controlling forklift lifting speed of the internal combustion counterbalance forklift truck with E-Gas actuator.
Background technology
At present the implementation method of diesel fork lift truck door frame lifting process is: operating personnel are with hand control banked direction control valves action bars, step on accelerator pedal while tramping with one's feet and increase the rotating speed of engine, oil pump is driven to provide enough flows to be lifted by goods, in whole lifting process, it is difficult to be precisely controlled the rotating speed of engine, when spool does not fully open, if engine speed is too high, hydraulic oil can return to fuel tank by overflow, and this results in hydraulic oil oil temperature and raises and the increase of oil consumption.It addition, in the course of work, need constantly Hong throttle, add the labour intensity of operating personnel.
Summary of the invention
It is an object of the invention to provide a kind of device and method controlling forklift lifting speed, it is big that it can solve labor intensity of operating staff, and fuel oil is wasted, the problem that hydraulic oil temperature is high.
In order to solve the problems referred to above, the technical solution used in the present invention is: the device of this control forklift lifting speed, including for receiving, process input signal and exporting the controller of control signal control engine；For detecting the walking acceleration sensor of accelerating throttle aperture size, for detecting the door frame lifting sensor of lifting valve core of multiway valve aperture size, for detecting the door frame inclination sensor of valve core of multiway valve aperture size, for the calibration switch of calibration sensor input range, for inductive operation personnel seat switch the most on the seat with for indicating the indicator lamp of the state of controller to be all connected with controller.
In technique scheme, more specifically scheme is it may also is that described controller is microcomputer controller.
Further: described walking acceleration sensor, described door frame lifting sensor, described door frame inclination sensor is all angle detecting sensor.
The method controlling forklift lifting speed with said apparatus is:
1), transducer calibration:
At described walking acceleration sensor, when described door frame lifting sensor and described door frame inclination sensor are in reset condition, close described calibration switch and electric lock switch, power to described controller, when described controller detects that described calibration switch signal is effective, described controller enters demarcation state, described indicator lamp flashes, the most respectively by gas pedal from little maximum of stepping on, handle will be lifted and tilt handle push-and-pull respectively to minimum and maximum position, after repeatedly operating several times, disconnect described calibration switch and described electric lock switch, demarcation terminates, described walking acceleration sensor, the calibration range value of described door frame lifting sensor and described door frame inclination sensor is by the memory being saved in described controller；
2), walking Throttle Opening Control:
Described controller gathers signal and the signal of described seat switch of described walking acceleration sensor, when described seat switch closes, described walking acceleration sensor signal is after the calibration value comparison in described controller with memory, and described controller output signal is given described engine and controls the rotating speed of this engine；
3), door frame lifting controls:
Described controller gathers signal and the signal of described seat switch of described door frame lifting sensor, when described seat switch closes, described door frame lifting sensor signal is after the calibration value comparison in described controller with memory, and described controller output signal is given described engine and controls the rotating speed of this engine；
4), door frame inclination control:
Described controller gathers signal and the signal of seat switch of described door frame inclination sensor, when described seat switch closes, the signal of described door frame inclination sensor is after the calibration value comparison in described controller with memory, and described controller output signal is given described engine and controls the rotating speed of this engine；
5), joint operation controls:
Described controller detects when at least two sensor signal is effective, and during described seat switch Guan Bi, described controller takes the maximum in described sensor and exports to described engine the rotating speed that controls this engine.
Owing to have employed technique scheme, the present invention compared with prior art, has the beneficial effect that
By this control device and method, it is possible to achieve hydraulic fluid flow rate regulates with the accurate of engine speed so that there is not overflow phenomena in system lifting process, and realizes the fine setting of lift height, it is achieved energy-saving effect.During whole, operating personnel need not go acceleration of stepping on the gas again, decreases the labour intensity of operating personnel.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the present invention.
Fig. 2 is the systematic schematic diagram of the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
The device controlling forklift lifting speed shown in Fig. 1 and Fig. 2, microcomputer controller 1 accelerates displacement transducer 3 respectively with walking, and door frame lifting displacement transducer 4, door frame tilt displacement sensor 5, calibration switch 6, seat switch 8, engine 2 and indicator lamp 7 connect；The power supply of displacement transducer 3, door frame lifting displacement transducer 4 and door frame tilt displacement sensor 5 and microcomputer controller 1 is accelerated in walking to be provided by battery.
The method controlling fork truck speed is:
1), transducer calibration:
Displacement angle detection sensor 3 is accelerated in walking, when door frame lifting angle detection sensor 4 and door frame angle of inclination detection sensor 5 are in reset condition, Guan Bi calibration switch 6 and electric lock switch, power to microcomputer controller 1, when microcomputer controller 1 detects that calibration switch 6 signal is effective, microcomputer controller 1 enters demarcation state, indicator lamp 7 flashes, the most respectively by gas pedal from little maximum of stepping on, handle will be lifted and tilt handle push-and-pull respectively to minimum and maximum position, after repeatedly operating several times, disconnect calibration switch 6 and electric lock switch, demarcation terminates, angle detecting sensor 3 is accelerated in walking, the calibration range value of door frame lifting angle detection sensor 4 and door frame angle of inclination detection sensor 5 is by the memory being saved in microcomputer controller 1；
2), walking Throttle Opening Control:
Microcomputer controller 1 gathers walking and accelerates signal and the signal of seat switch 8 of angle detecting sensor 3, when seat switch 8 closes, walking acceleration angle detecting sensor 3 signal is after the calibration value comparison in microcomputer controller 1 with memory, and microcomputer controller 1 outputs signal to engine 2 and controls the rotating speed of this engine；
3), door frame lifting controls:
Microcomputer controller 1 gathers signal and the signal of seat switch 8 of door frame lifting angle detection sensor 4, when seat switch 8 closes, door frame lifting angle detection sensor 4 signal is after the calibration value comparison in microcomputer controller 1 with memory, and microcomputer controller 1 outputs signal to engine 2 and controls the rotating speed of this engine；
4), door frame inclination control:
Microcomputer controller 1 gathers signal and the signal of seat switch 8 of door frame angle of inclination detection sensor 5, when seat switch 8 closes, the signal of door frame angle of inclination detection sensor 5 is after the calibration value comparison in microcomputer controller 1 with memory, and microcomputer controller 1 outputs signal to engine 2 and controls the rotating speed of this engine；
5), joint operation controls:
Microcomputer controller 1 detects when plural sensor signal is effective, and when seat switch 8 closes, and microcomputer controller 1 takes the maximum in sensor and exports to engine 2 rotating speed that controls this engine.
Claims (4)
1. the device controlling forklift lifting speed, it is characterised in that: include for receiving, process input signal and exporting the controller (1) of control signal control engine (2)；For detecting the walking acceleration sensor (3) of accelerating throttle aperture size, for detecting door frame lifting sensor (4) of lifting valve core of multiway valve aperture size, for detecting the door frame inclination sensor (5) of valve core of multiway valve aperture size, for the calibration switch (6) of calibration sensor input range, for inductive operation personnel seat switch (8) the most on the seat be used for indicating the indicator lamp (7) of the state of controller (1) to be all connected with controller (1).
The device of control forklift lifting speed the most according to claim 1, it is characterised in that: described controller (1) is microcomputer controller.
The device of control forklift lifting speed the most according to claim 1 and 2, it is characterised in that: described walking acceleration sensor (3), described door frame lifting sensor (4), described door frame inclination sensor (5) is all angle detecting sensor.
4. the method controlling forklift lifting speed, it is characterised in that: realizing with the device controlling forklift lifting speed, its method is:
1), transducer calibration:
In walking acceleration sensor (3), when door frame lifting sensor (4) and door frame inclination sensor (5) are in reset condition, Guan Bi calibration switch (6) and electric lock switch, power to controller (1), when described controller (1) detects that described calibration switch (6) signal is effective, described controller (1) enters demarcation state, indicator lamp (7) flashes, the most respectively by gas pedal from little maximum of stepping on, handle will be lifted and tilt handle push-and-pull respectively to minimum and maximum position, after repeatedly operating several times, disconnect described calibration switch (6) and described electric lock switch, demarcation terminates, described walking acceleration sensor (3), the calibration range value of described door frame lifting sensor (4) and described door frame inclination sensor (5) will be saved in the memory of described controller (1)；
2), walking Throttle Opening Control:
Described controller (1) gathers signal and the signal of seat switch (8) of described walking acceleration sensor (3), when described seat switch (8) closes, described walking acceleration sensor (3) signal is after the calibration value comparison in described controller (1) with memory, and described controller (1) outputs signal to engine (2) and controls the rotating speed of this engine；
3), door frame lifting controls:
Described controller (1) gathers signal and the signal of described seat switch (8) of described door frame lifting sensor (4), when described seat switch (8) closes, described door frame lifting sensor (4) signal is after the calibration value comparison in described controller (1) with memory, and described controller (1) outputs signal to described engine (2) and controls the rotating speed of this engine；
4), door frame inclination control:
Described controller (1) gathers signal and the signal of described seat switch (8) of described door frame inclination sensor (5), when described seat switch (8) closes, the signal of described door frame inclination sensor (5) is after the calibration value comparison in described controller (1) with memory, and described controller (1) outputs signal to described engine (2) and controls the rotating speed of this engine；
5), joint operation controls:
Described controller (1) detects when at least two sensor signal is effective, and during described seat switch (8) Guan Bi, described controller (1) takes the maximum in described sensor and exports to described engine (2) the rotating speed that controls this engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410038555.5A CN104030197B (en) | 2014-01-27 | 2014-01-27 | Control the device and method of forklift lifting speed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038555.5A CN104030197B (en) | 2014-01-27 | 2014-01-27 | Control the device and method of forklift lifting speed |
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| Publication Number | Publication Date |
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| CN104030197A CN104030197A (en) | 2014-09-10 |
| CN104030197B true CN104030197B (en) | 2016-09-07 |
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| CN201410038555.5A Active CN104030197B (en) | 2014-01-27 | 2014-01-27 | Control the device and method of forklift lifting speed |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961075A (en) * | 2015-06-25 | 2015-10-07 | 重庆川渝精工机械配件开发有限公司 | Speed regulation device and method of forklift lifting system |
| JP2017174218A (en) * | 2016-03-24 | 2017-09-28 | 株式会社豊田自動織機 | Current control device |
| CN107857212B (en) * | 2017-09-26 | 2019-06-25 | 林德（中国）叉车有限公司 | A kind of fork truck maximum lift height method for limiting and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5638387A (en) * | 1994-01-19 | 1997-06-10 | Fiat Om Carrelli Elevatori S.P.A. | Electrically driven lift truck |
| CN201121117Y (en) * | 2007-10-29 | 2008-09-24 | 杭州浙力叉车有限公司 | Hydraulic speed regulating device for fork truck lift |
| CN201458672U (en) * | 2009-07-06 | 2010-05-12 | 杭州浙力叉车集团有限公司 | Hierarchical speed governing device of fork truck portal frame |
| CN101844559A (en) * | 2009-03-27 | 2010-09-29 | 雷蒙德股份有限公司 | Be used to keep the system and method for the dynamic stability of materials handling vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110127343A (en) * | 2010-05-19 | 2011-11-25 | 두산산업차량 주식회사 | Lift speed control system of a working device for a heavy equipment |
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- 2014-01-27 CN CN201410038555.5A patent/CN104030197B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5638387A (en) * | 1994-01-19 | 1997-06-10 | Fiat Om Carrelli Elevatori S.P.A. | Electrically driven lift truck |
| CN201121117Y (en) * | 2007-10-29 | 2008-09-24 | 杭州浙力叉车有限公司 | Hydraulic speed regulating device for fork truck lift |
| CN101844559A (en) * | 2009-03-27 | 2010-09-29 | 雷蒙德股份有限公司 | Be used to keep the system and method for the dynamic stability of materials handling vehicle |
| CN201458672U (en) * | 2009-07-06 | 2010-05-12 | 杭州浙力叉车集团有限公司 | Hierarchical speed governing device of fork truck portal frame |
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| CN104030197A (en) | 2014-09-10 |
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