CN103786581B - Fork truck automatic speed limit device - Google Patents
Fork truck automatic speed limit device Download PDFInfo
- Publication number
- CN103786581B CN103786581B CN201410050991.4A CN201410050991A CN103786581B CN 103786581 B CN103786581 B CN 103786581B CN 201410050991 A CN201410050991 A CN 201410050991A CN 103786581 B CN103786581 B CN 103786581B
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- Prior art keywords
- fork truck
- motor
- wind turbine
- pipe
- circular pipe
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- Expired - Fee Related
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- Forklifts And Lifting Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The present invention relates to a kind of fork truck automatic speed limit devices, laser coordinate measuring instrument is mounted on fork truck hood front, fork truck load cell is mounted on fork truck suspension, vehicle speed sensor is mounted on circular pipe on forklift speed variator and is mounted in forklift engine air inlet pipe, and is connected to the admission line before and after air throttle；First and second pipe valve is separately mounted to circular pipe both ends, assembling position among circular pipe, motor is connect with the first and second pipe valve, single-chip microcomputer signal input terminal is separately connected laser coordinate measuring instrument, fork truck load cell, vehicle speed sensor, single-chip microcomputer signal output end connects motor and wind turbine by motor control unit with air-blower control unit respectively, for controlling motor and wind turbine starting and stopping.The present invention can also ensure that the stability for the dynamic property and traveling that it goes up a slope simultaneously according to the travel speed of the load condition of fork truck itself and the surface conditions of traveling and pre-set speed limit volitional check fork truck, so that it is guaranteed that the safety of fork truck traveling.
Description
Technical field
The present invention relates to a kind of fork truck intelligent controlling devices, more specifically, are related to a kind of fork truck automatic speed limit device.
Background technology
As people increase substantially and reduce human load, mitigation labor intensity to what working efficiency required,
Fork truck uses more and more extensive.But fork truck traveling speed be also getting faster, drive over the speed limit caused by accident it is more and more, make
At a large amount of casualties and property loss.The existing fork truck speed-limiting device used is substantially only has been when hypervelocity
To alarm function, driver's slow down is prompted, but cannot fundamentally limit fork truck hypervelocity.Although some fork trucks limit simultaneously
Speed variator can reach the speed limit of certain situation but but bring new problem：The unstability of fork truck traveling was being gone up a slope
It is short of power in journey and leads to the reduction of fork truck working efficiency.
Invention content
In view of the above-mentioned drawbacks of the prior art or insufficient, the object of the present invention is to provide a kind of fork truck automatic limitings
Speed variator, the device can be according to the load conditions of fork truck itself and the surface conditions of traveling and pre-set speed limit
The travel speed of volitional check fork truck can also ensure that the stability for the dynamic property and traveling that it goes up a slope simultaneously, so that it is guaranteed that fork truck
The safety of traveling.
To achieve the above object, the present invention takes following technical solution；
A kind of fork truck automatic speed limit device, including wind turbine, the first and second pipe valve, pipe pipeline, laser coordinate measure
Instrument, vehicle speed sensor, fork truck load cell, motor, light coordinate measuring instrument, vehicle speed sensor, microcontroller, it is characterised in that：
Laser coordinate measuring instrument is mounted on fork truck hood front, for measuring the surface conditions of fork truck road ahead；Fork truck load passes
Sensor is mounted on fork truck suspension, the load for acquiring fork truck suspension；Vehicle speed sensor is mounted on forklift speed variator, is used for
Acquire the real-time speed of fork truck；Circular pipe be mounted on forklift engine air inlet pipe on, and with the admission line before and after air throttle
Connection；First and second pipe valve is separately mounted to circular pipe both ends, for controlling circular pipe and engine charge pipeline
The opening and closing at connection situation, that is, circular pipe both ends；Assembling position among circular pipe, for aspirate take out engine into
Gas before and after feed channel air throttle in any one end and by circular pipe can positive and negative rotation wind turbine under the action of be discharged to it is another
End；Motor is connect with the first and second pipe valve, for driving a pair of of pipe valve forward or reverse；Single-chip microcomputer signal input terminal
Be separately connected laser coordinate measuring instrument, fork truck load cell, vehicle speed sensor, for receive from laser coordinate measuring instrument,
The signal of fork truck load cell and vehicle speed sensor acquisition, single-chip microcomputer signal output end pass through motor control unit and wind respectively
Machine control unit connects motor and wind turbine, for controlling motor and wind turbine starting and stopping.
First and second pipe valve is connected to the motor by mechanical rocking arm to be connect.Wind turbine be can positive and negative rotation axial fan.
The beneficial effects of the invention are as follows：
The present invention can be limited according to the load condition of fork truck itself and the surface conditions of traveling and pre-set speed
The travel speed of value volitional check fork truck can also ensure that the stability for the dynamic property and traveling that it goes up a slope simultaneously, so that it is guaranteed that fork
The safety of vehicle traveling.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the schematic diagram that circular pipe and other associated components are installed on engine charge pipeline.
Specific implementation mode
Below in conjunction with drawings and examples, the present invention is further illustrated.
Such as Fig. 1, shown in 2, the present embodiment provides a kind of fork truck automatic speed limit device, including laser coordinate measuring instrument 1, fork truck
Load cell 2, vehicle speed sensor 3, microcontroller 4, circular pipe 5, motor 6, can positive and negative rotation wind turbine 7, the first and second pipe valve
Door 8,9.
Laser coordinate measuring instrument 1, fork truck load cell 2, vehicle speed sensor 3, motor 6 and wind turbine 7 are connected to microcontroller
On, circular pipe 5 install engine admission line on its 5 both ends of circular pipe be welded in the appropriate position before and after air throttle
It sets, the first and second pipe valve 8,9 passes through mechanical rocking arm and 6 phase of motor mounted on this two valves of 5 corresponding both ends of circular pipe
Connection, can positive and negative rotation wind turbine 7 be mounted on circular pipe 5 intermediate position, for aspirate taking-up engine charge pipeline solar term
Gas after in front of the door in any one end and by circular pipe the other end can be discharged under the action of positive and negative rotation wind turbine.Laser coordinate
Measuring instrument 1 is mounted on fork truck hood front, for measuring the surface conditions of fork truck road ahead（The gradient on such as road surface）.Fork
Vehicle load cell 2 is mounted on fork truck suspension, the load for acquiring fork truck suspension.Vehicle speed sensor 3 becomes mounted on fork truck
On fast device shell, for acquiring the real-time speed of fork truck.There are jet pipe 11 and air throttle 10, circular pipe 5 in engine charge pipeline
Mounted on its both ends in forklift engine air inlet pipe be respectively welded at air throttle 10 before and after position appropriate, the first and second pipe valve
Door 8,9 is separately mounted at the both ends open of circular pipe 5, can the wind turbine 7 of positive and negative rotation be mounted on the middle part of circular pipe 5
Position, wind turbine 7 and motor 6 are controlled by microcontroller 4 and are rotated, and motor 6 opens the first and second pipe valve 8,9 by mechanical rocking arm,
Wind turbine 7 runs exhaust as needed respectively, wherein when the operation of wind turbine 7 is before the absorption of the second pipe valve 9 is discharged to air throttle 10
In the air inlet pipe in portion reduce forklift engine output power reduce speed, and when wind turbine 7 operation from the first pipe valve 8 draw and
Increase engine power promotion when being discharged to behind air throttle 10 in air inlet pipe and starts dynamic property.
In the present embodiment wind turbine 7 select be it is a kind of have the function of can positive and negative rotation axial fan.
Microcontroller 4 in the present embodiment connects the circuit that same each section is connected and then needs the practical work according to fork truck again
Make the fork truck maximum speed run and the medium speed stablized in situation write-in work to be written not under different loading conditions
It is same to obtain maximum speed limit and the medium speed stablized to ensure its fuel economy, first by fork truck under being acted in certain load
2 signal transmissions received of load cell to microcontroller 4, the signal enabling that microcontroller 4 is transmitted according to 2 finish writing in advance this
Maximum speed limit and stablize medium speed under state, the velocity pick-up being mounted in fork truck driving process in transmission case
3 speed signals received of device pass to microcontroller 4, and microcontroller 4 is the speed received by velocity sensor 3 and in advance
The speed set compares, if by it was found that speed is as maximum speed, microcontroller 4 transmits a signal to motor control
Unit controls and air-blower control unit controls motor 6 and wind turbine 7 respectively, and motor 6 opens the first and second pipe valve by mechanical rocking arm
Door 8,9, the prograde circuit signal that wind turbine 7 is transmitted according to microcontroller, which brings into operation, rotates forward the air throttle 10 from engine air inlet tube
Rear portion air-breathing is simultaneously discharged to the admission line of 10 front of air throttle to reach again by circular pipe by the first pipe valve 8
Fork truck speed is reduced, the speed signal that microcontroller 4 is received from velocity sensor 3 again is compared, when the velocity amplitude received
Microcontroller outgoing signal controls motor 6 to motor control unit when coincideing with moderate stable velocity amplitude and air-blower control unit controls
Wind turbine 7, motor 6 control the first and second pipe valve 8,9 and close, and wind turbine 7 is out of service；In fork truck ran vehicle, if microcontroller
4 by 1 derived signals of laser coordinate measuring instrument when finding that road surface ahead has certain slope, microcontroller 4 speed limit program mask, and
And transmit in addition certain signal and control motor 6 and air-blower control unit to motor control unit and control wind turbine 7, motor 6 opens the
One, two pipe valve 8,9, the reversion that then brings into operation of wind turbine 7 absorb the gas of air throttle 10 front and by circular pipe 5 and the
Two pipe valves 9 are transferred to after air throttle 10 in admission line to increase engine power, improve the power of engine, are increased
The ability that big fork truck goes up a slope.
Claims (3)
1. a kind of fork truck automatic speed limit device, including laser coordinate measuring instrument (1), fork truck load cell (2), vehicle speed sensor
(3), microcontroller (4), circular pipe (5), motor (6), can positive and negative rotation wind turbine (7), the first and second pipe valve (8,9), it is special
Sign is：The laser coordinate measuring instrument (1) is mounted on fork truck hood front, for measuring the road surface feelings of fork truck road ahead
Condition；Fork truck load cell (2) is mounted on fork truck suspension, the load for acquiring fork truck suspension；Vehicle speed sensor (3) is installed
On forklift speed variator, for acquiring fork truck real-time speed；Circular pipe (5) is mounted in forklift engine air inlet pipe, and with
Admission line connection before and after air throttle；First and second pipe valve (8,9) is separately mounted to circular pipe (5) both ends, for controlling
The opening and closing of round pipeline (5) and connection situation, that is, circular pipe both ends of engine charge pipeline；Wind turbine (7) is mounted on circle
The intermediate position of pipeline (5), for aspirate the gas before and after taking-up engine charge pipeline air throttle in any one end and passing through circle
Shape pipeline (5) under the action of positive and negative rotation wind turbine (7) can be discharged to the other end；Motor (6) connects with the first and second pipe valve (8,9)
It connects, for driving a pair of of pipe valve forward or reverse；Microcontroller (4) signal input part is separately connected laser coordinate measuring instrument
(1), fork truck load cell (2), vehicle speed sensor (3) are passed for receiving from laser coordinate measuring instrument (1), fork truck load
The signal of sensor (2) and vehicle speed sensor (3) acquisition, microcontroller (4) signal output end pass through motor control unit and wind respectively
Machine control unit connects motor (6) and wind turbine (7), for controlling motor (6) and wind turbine (7) starting and stopping.
2. fork truck automatic speed limit device according to claim 1, it is characterised in that：The first and second pipe valve (8,9)
It is connected with motor (6) by mechanical rocking arm.
3. fork truck automatic speed limit device according to claim 1, it is characterised in that：The wind turbine (7) is can positive and negative rotation
Axial fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050991.4A CN103786581B (en) | 2014-02-14 | 2014-02-14 | Fork truck automatic speed limit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050991.4A CN103786581B (en) | 2014-02-14 | 2014-02-14 | Fork truck automatic speed limit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103786581A CN103786581A (en) | 2014-05-14 |
| CN103786581B true CN103786581B (en) | 2018-07-31 |
Family
ID=50662816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050991.4A Expired - Fee Related CN103786581B (en) | 2014-02-14 | 2014-02-14 | Fork truck automatic speed limit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103786581B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532901A (en) * | 1979-05-04 | 1985-08-06 | Sturdy Truck Equipment, Inc. | Engine governor with fast reference positioning and slow opening and closing movement of throttle limiter |
| FR2852356A1 (en) * | 2003-03-13 | 2004-09-17 | Peugeot Citroen Automobiles Sa | Supercharged engine for motor vehicle, has turbo compressor with turbine on air line in parallel to valve, and electric motor adapted to drive turbine and compressor in rotation |
| CN102562324A (en) * | 2012-01-05 | 2012-07-11 | 江苏技术师范学院 | Training car speed limiting system |
| CN202357883U (en) * | 2011-12-01 | 2012-08-01 | 长安大学 | Automatic speed limiting device for car |
| CN103047029A (en) * | 2011-10-12 | 2013-04-17 | 福特环球技术公司 | Methods and systems for an engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1193737A (en) * | 1997-09-24 | 1999-04-06 | Toyota Motor Corp | Intake air volume control device for internal combustion engine |
| WO2013163128A1 (en) * | 2012-04-23 | 2013-10-31 | Honeywell International Inc. | Butterfly bypass valve, and throttle loss recovery system incorporating same |
-
2014
- 2014-02-14 CN CN201410050991.4A patent/CN103786581B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532901A (en) * | 1979-05-04 | 1985-08-06 | Sturdy Truck Equipment, Inc. | Engine governor with fast reference positioning and slow opening and closing movement of throttle limiter |
| FR2852356A1 (en) * | 2003-03-13 | 2004-09-17 | Peugeot Citroen Automobiles Sa | Supercharged engine for motor vehicle, has turbo compressor with turbine on air line in parallel to valve, and electric motor adapted to drive turbine and compressor in rotation |
| CN103047029A (en) * | 2011-10-12 | 2013-04-17 | 福特环球技术公司 | Methods and systems for an engine |
| CN202357883U (en) * | 2011-12-01 | 2012-08-01 | 长安大学 | Automatic speed limiting device for car |
| CN102562324A (en) * | 2012-01-05 | 2012-07-11 | 江苏技术师范学院 | Training car speed limiting system |
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| Publication number | Publication date |
|---|---|
| CN103786581A (en) | 2014-05-14 |
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