CN207347090U - A kind of electri forklift raising limit for height speed limit control system - Google Patents
A kind of electri forklift raising limit for height speed limit control system Download PDFInfo
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- CN207347090U CN207347090U CN201721237394.8U CN201721237394U CN207347090U CN 207347090 U CN207347090 U CN 207347090U CN 201721237394 U CN201721237394 U CN 201721237394U CN 207347090 U CN207347090 U CN 207347090U
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- power supply
- switch
- electri forklift
- relay
- cathode
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Abstract
The utility model discloses a kind of electri forklift raising limit for height speed limit control system, including the accumulation power supply for providing electric energy, the cathode of the accumulation power supply passes sequentially through the first fuse and key switch and the cathode power supply input terminal of power supply changeover device connects, the power supply VCC of the close switch of cathode power supply output terminal connection of the power supply changeover device；The cathode of accumulation power supply also passes sequentially through main contactor and the connection of the positive terminal of the second fuse and electric machine controller.The utility model connects to form circuit using relay, close to electric elements such as switches, and circuit is simple, versatile, and cost is low；When achievable electri forklift works in specific occasion, lifting velocity and lifting altitude to door frame are effectively limited；When leaving specific occasion, electri forklift can recover the maximum lifting height and maximum lifting velocity during normal operating conditions rapidly, improve the work efficiency of electri forklift, easy to use, meet the use demand of people, be conducive to promote the use of.
Description
Technical field
Electri forklift technical field is the utility model is related to, is specifically a kind of electri forklift raising limit for height Control for Speed Limitation system
System.
Background technology
Electri forklift is using storage battery as power source, converts electrical energy into mechanical energy by motor to drive forklift-walking
With the fork truck for converting electrical energy into hydraulic energy driving equipment work.Electri forklift have power set it is small, operation letter
The features such as single flexible, low noise, emission-free discharge.
In practical applications, electri forklift needs to work under different occasions, different operating mode, in specific occasion,
As certain warehouse height it is lower than door frame maximum lifting height in the case of, the door frame raising of electri forklift needs to be limited to certain height
Degree, the door frame and warehouse for avoiding electri forklift crash, meanwhile, in particular job occasion, the door frame of electri forklift rises
Lifting speed is also required to control in a certain range, it is necessary to is defined, is usually avoided at present using the method for manual control electronic
The door frame of fork truck collides with warehouse, but during dependence manual control, easily produces the larger height error of raising, cause to touch
Hit, or even serious unexpected security incident occurs.
Utility model content
The purpose of this utility model is to provide a kind of electri forklift raising limit for height speed limit control system, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides following technical solution：
A kind of electri forklift raising limit for height speed limit control system, including for providing the accumulation power supply of electric energy, the energy storage
The cathode of power supply passes sequentially through the first fuse and key switch and the cathode power supply input terminal of power supply changeover device connects, the electricity
Power supply VCC of the cathode power supply output terminal connection of source converter close to switch；The cathode of accumulation power supply also passes sequentially through main contact
Device and the connection of the positive terminal of the second fuse and electric machine controller, the lifting velocity port of the electric machine controller with
The first switch being connected in parallel is connected with the output terminal of second switch, and the input terminal of the first switch and second switch is successively
Being connected to control electri forklift, whether the 3rd of raising switchs and is opened for the single-pole double throw of electri forklift lifting altitude selection
Close, the limit for height contact of the single-pole double-throw switch (SPDT) is connected with the first relay, normal level contact is connected with the second relay, institute
Stating the first relay and the second relay includes the line bag that be connected with the anode of accumulation power supply and normally closed tactile in normally off
Point.
As further program of the utility model：The cathode of the accumulation power supply passes sequentially through the first fuse and key
Switch is also connected with the power input port of electric machine controller；The power cell wire connection terminal of the electric machine controller and motor pair
The anode of lead-out wire connection, power output end and the accumulation power supply answered connects.
As further program of the utility model：The main contactor includes being serially connected in the control port of electric machine controller
The main contactor contact that main contactor coil, both ends between NMC and PMC are connected with accumulation power supply and the second fuse respectively.
As further program of the utility model：The output terminal of the first switch and second switch respectively with motor control
The lifting velocity port LIFT1 and LIFT2 of device processed are connected, input terminal is connected with the output terminal of the 3rd switch.
As further program of the utility model：The line bag cathode of first relay and the second relay it is normally closed
Contact one end is connected with close to the signal output part OUT of switch, the normally-closed contact other end warning lamp of second relay
Positive terminal be connected.
As further program of the utility model：The negative terminal of the electric machine controller, power supply changeover device
Negative power supply, the power supply GND close to switch, the first relay line bag anode, the negative pole end of warning lamp, the line bag of the second relay
Anode is all connected to the anode of accumulation power supply.
Compared with prior art, the beneficial effects of the utility model are：The utility model is using relay, close switch etc.
Electric elements connect to form circuit, and circuit is simple, versatile, and cost is low；Touched by the electric machine controller of setting, equipped with limit for height
The single-pole double-throw switch (SPDT) and relay of point and normal level contact are when, it can be achieved that electri forklift works in specific occasion, on the door
The lifting velocity and lifting altitude of frame are effectively limited, and are eliminated manual control and are not allowed generation error to cause electric car fork truck to collide
Deng security risk, meanwhile, by the warning lamp of setting, can play a warning role, remind staff electri forklift in time
Working status, can effectively ensure that electri forklift works in the secure state；When leaving specific occasion, electri forklift can be rapid
Recover the maximum lifting height and maximum lifting velocity during normal operating conditions, improve the work efficiency of electri forklift, use
It is convenient, the use demand of people is met, is conducive to promote the use of.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model.
In figure：1- accumulation power supplies, the first fuses of 2-, 3- key switches, 4- main contactors contact, the second fuses of 5-,
6- motors, 7- electric machine controllers, 8- first switches, 9- second switches, the switches of 10- the 3rd, 11- single-pole double-throw switch (SPDT)s, 12- power supplys
The close switch of converter, the 3rd fuses of 13-, the first relays of 14-, the second relays of 15-, 16- warning lamps, 17-, 18- master
Contactor coil.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the utility model embodiment, a kind of electri forklift raising limit for height speed limit control system, including with
In the accumulation power supply 1 for providing electric energy, the cathode of the accumulation power supply 1 passes sequentially through the first fuse 2 and key switch 3 and power supply
The cathode power supply input terminal connection of converter 12, the cathode power supply output terminal of the power supply changeover device 12 pass through the 3rd fuse 13
Connection is close to the power supply VCC of switch 17, and the cathode of accumulation power supply 1 passes sequentially through the first fuse 2 and key switch 3 is gone back and motor
The power input port connection of controller 7, power cell wire connection terminal and the 6 corresponding extraction of motor of the electric machine controller 7
The anode of line connection, power output end and accumulation power supply 1 connects；The cathode of accumulation power supply 1 also passes sequentially through main contactor and
Two fuses 5 are connected with the positive terminal of electric machine controller 7, and the main contactor includes being serially connected in electric machine controller 7
The master that main contactor coil 18, both ends between control port NMC and PMC are connected with 1 and second fuse 5 of accumulation power supply respectively
Contacts of contactor 4, the first switch 8 and second switch 9 of the lifting velocity port of the electric machine controller 7 with being connected in parallel
Output terminal connection, the input terminal of the first switch 8 and second switch 9 be sequentially connected for control electri forklift whether raising
The 3rd switch 10 and the single-pole double-throw switch (SPDT) 11 for the selection of electri forklift lifting altitude, first switch 8 and second switch 9
Output terminal is connected with the lifting velocity port LIFT1 and LIFT2 of electric machine controller 7 respectively, input terminal is defeated with the 3rd switch 10
Outlet is connected, the limit for height contact of the single-pole double-throw switch (SPDT) 11 is connected with the first relay 14, normal level contact with second after
Electric appliance 15 connects, and 14 and second relay 15 of the first relay includes line bag and the place being connected with the anode of accumulation power supply 1
In the normally-closed contact of normally off, normally-closed contact one end of the line bag cathode of first relay 14 and the second relay 15 is equal
It is connected with close to the signal output part OUT of switch 17, the normally-closed contact other end warning lamp 16 of second relay 15 is just
It is extreme to be connected, the negative terminal of the electric machine controller 7, the negative power supply of power supply changeover device 12, the electricity close to switch 17
Source GND, 14 line bag anode of the first relay, the negative pole end of warning lamp 16, the line bag anode of the second relay 15 are all connected to store up
The anode of energy power supply 1.
Utility model works are stablized, and the accumulation power supply 1 of electri forklift raising limit for height speed limit control system uses storage battery,
When electri forklift enters specific occasion, it is necessary to limit the lifting velocity and lifting altitude of door frame, key is first turned on
Spoon switch 3, the cathode of accumulation power supply 1 pass sequentially through the power input of the first fuse 2 and key switch 3 and electric machine controller 7
Port KS1 connections, after electric machine controller 7 obtains electric self-test, the master being serially connected between electric machine controller 7 control port NMC and PMC connects
Tentaculum coil 18 produces voltage difference so that main is contacted by what the second fuse 5 and 7 positive terminal of electric machine controller connected
Device contact 4, which is attracted, to be connected, and the power cell of electric machine controller 7 obtains electric, the power cell wire connection terminal and motor of electric machine controller 7
6 corresponding lead-out wire connections, meanwhile, the cathode power supply input terminal of power supply changeover device 12 passes through the first fuse 2 and key switch 3
It is connected with the cathode of accumulation power supply 1, the cathode power supply output terminal of power supply changeover device 12 is opened by the way that the connection of the 3rd fuse 13 is close
17 power supply VCC is closed, power supply changeover device 12 is that the DC-DC power source that+48/80V direct currents are converted to+12/24V direct currents converts
Device, power supply changeover device 12 it is electric after conversion electric power+12V/24V and for close to switch 17 power supply VCC provide needed for power supply.Close again
The first switch 8 being connected with the lifting velocity port LIFT1 of electric machine controller 7 is closed, first switch 8 is opened for the selection of raising speed limit
Close, by the limit for height contact closure of single-pole double-throw switch (SPDT) 11, pull raising valve rod, closure output terminal connects with 8 input terminal of first switch
Connect the 3rd switch 10, the 3rd switch 10 in order to control electri forklift whether the selecting switch of raising, the power list of electric machine controller 7
First wire connection terminal U, V, W are connected with 6 corresponding lead-out wire of motor respectively, and electric machine controller 7 inputs the motor 6 of speed limit to motor 6
Rotary speed instruction, motor 6 adjust rotating speed after receiving instruction, and with the speed raising of restriction, certain height just is raised to when door frame rises for door frame
After degree, the limiting plate on door frame connects close to switch 17 close proximity to switch 17 with limiting plate close to when reaching certain distance
The signal output part OUT and power supply VCC of nearly switch 17 are connected, and the line bag cathode of the first relay 14 obtains electric, the first relay 14
Normally-closed contact disconnect, the lifting velocity port LIFT1 dead electricity of electric machine controller 7, door frame reaches the height and position of restriction, door frame
Stop raising, when signal output part OUT and power supply VCC close to switch 17 are connected, the normally-closed contact one of the second relay 15
Hold electric, the normally-closed contact of the second relay 15 is another to be terminated with warning lamp 16, and the other end and accumulation power supply 1 of warning lamp 16 are negative
Extremely it is connected, warning lamp 16 is bright, plays a warning role, and reminds the working status of staff's electri forklift in time, can effectively protect
Card electri forklift works in the secure state, eliminates manual control and produces the security risk that error causes to collide, avoids electric fork
Car crashes when specific occasion works.
When electri forklift leaves workplace normal work, key switch 3 is opened, the cathode of accumulation power supply 1 leads to successively
The first fuse 2 and key switch 3 is crossed to be connected with the power input port KS1 of electric machine controller 7, electric machine controller 7 it is electric from
After inspection, the main contactor coil 18 being serially connected between electric machine controller 7 control port NMC and PMC produces voltage difference so that passes through
The main contactor contact 4 that second fuse 5 is connected with 7 positive terminal of electric machine controller, which is attracted, to be connected, electric machine controller 7
Power cell obtains the second switch 9 electric, closure is connected with the lifting velocity port LIFT2 of electric machine controller 7, and second switch 9 is
Normal lifting velocity selecting switch, by the normal level contact closure of single-pole double-throw switch (SPDT) 11, pulls raising valve rod, closure output
The 3rd switch 10 being connected with 9 input terminal of second switch is held, the 3rd switch 10 in order to control whether open electri forklift by the selection of raising
Closing, electric machine controller 7 inputs 6 rotary speed instruction of motor of normal lifting velocity to motor 6, and motor 6 adjusts rotating speed after receiving instruction,
Door frame just will with maximal rate raising, meanwhile, the line bag cathode of the second relay 15 obtains electric, the normally-closed contact of the second relay 15
Disconnect, the warning lamp 16 being connected with normally-closed contact one end of the second relay 15 does not work, and at this time, electri forklift recovers and with normal
Maximum lifting height and maximum lifting velocity work, improve the work efficiency of electri forklift, use relay, close to switch
17 grade electrical appliances connect to form circuit, and circuit is simple, versatile, and cost is low, is conducive to promote the use of.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of electri forklift raising limit for height speed limit control system, including for providing the accumulation power supply of electric energy（1）, its feature exists
In：The accumulation power supply（1）Cathode pass sequentially through the first fuse（2）And key switch（3）With power supply changeover device（12）'s
Cathode power supply input terminal connects, the power supply changeover device（12）Cathode power supply output terminal pass through the 3rd fuse（13）Connection connects
Nearly switch（17）Power supply VCC；Accumulation power supply（1）Cathode also pass sequentially through main contactor and the second fuse（5）With motor
Controller（7）Positive terminal connection, the electric machine controller（7）Lifting velocity port be connected in parallel
One switch（8）And second switch（9）Output terminal connection, the first switch（8）With second switch（9）Input terminal connect successively
Connect whether the 3rd of raising switchs for controlling electri forklift（10）With the single-pole double throw selected for electri forklift lifting altitude
Switch（11）, the single-pole double-throw switch (SPDT)（11）Limit for height contact and the first relay（14）Connection, normal level contact and the
Two relays（15）Connection, first relay（14）With the second relay（15）Including with accumulation power supply（1）Anode connect
The line bag connect and the normally-closed contact in normally off.
2. electri forklift raising limit for height speed limit control system according to claim 1, it is characterised in that：The accumulation power supply
（1）Cathode pass sequentially through the first fuse（2）And key switch（3）Also with electric machine controller（7）Power input port connect
Connect；The electric machine controller（7）Power cell wire connection terminal and motor（6）The connection of corresponding lead-out wire, power output end with
Accumulation power supply（1）Anode connection.
3. electri forklift raising limit for height speed limit control system according to claim 1, it is characterised in that：The main contactor
Including being serially connected in electric machine controller（7）Control port NMC and PMC between main contactor coil（18）, both ends respectively with storage
Can power supply（1）With the second fuse（5）The main contactor contact of connection（4）.
4. electri forklift raising limit for height speed limit control system according to claim 1, it is characterised in that：The first switch
（8）And second switch（9）Output terminal respectively with electric machine controller（7）Lifting velocity port LIFT1 be connected with LIFT2, be defeated
Enter end and the 3rd switch（10）Output terminal be connected.
5. electri forklift raising limit for height speed limit control system according to claim 1, it is characterised in that：First relay
Device（14）Line bag cathode and the second relay（15）Normally-closed contact one end with close to switch（17）Signal output part OUT
Connection, second relay（15）Normally-closed contact other end warning lamp（16）Positive terminal be connected.
6. electri forklift raising limit for height speed limit control system according to claim 1, it is characterised in that：The motor control
Device（7）Negative terminal, power supply changeover device（12）Negative power supply, close to switch（17）Power supply GND, the first relay
（14）Line bag anode, warning lamp（16）Negative pole end, the second relay（15）Line bag anode be all connected to accumulation power supply（1）'s
Anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237394.8U CN207347090U (en) | 2017-09-25 | 2017-09-25 | A kind of electri forklift raising limit for height speed limit control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237394.8U CN207347090U (en) | 2017-09-25 | 2017-09-25 | A kind of electri forklift raising limit for height speed limit control system |
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| Publication Number | Publication Date |
|---|---|
| CN207347090U true CN207347090U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721237394.8U Active CN207347090U (en) | 2017-09-25 | 2017-09-25 | A kind of electri forklift raising limit for height speed limit control system |
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| CN (1) | CN207347090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003663A (en) * | 2019-12-12 | 2020-04-14 | 安徽合力股份有限公司 | Automatic in-place device for lifting height of fork of electric forklift and control method |
-
2017
- 2017-09-25 CN CN201721237394.8U patent/CN207347090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003663A (en) * | 2019-12-12 | 2020-04-14 | 安徽合力股份有限公司 | Automatic in-place device for lifting height of fork of electric forklift and control method |
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