CN208345688U - Fork truck work safety control - Google Patents
Fork truck work safety control Download PDFInfo
- Publication number
- CN208345688U CN208345688U CN201820405863.0U CN201820405863U CN208345688U CN 208345688 U CN208345688 U CN 208345688U CN 201820405863 U CN201820405863 U CN 201820405863U CN 208345688 U CN208345688 U CN 208345688U
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- China
- Prior art keywords
- switch
- fork truck
- multichannel
- valve assembly
- valve
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Abstract
The utility model discloses a kind of fork truck work safety controls, including the master controller being set on fork truck console, pallet fork in the operation handle that multi-way valve tilts connection valve rod levels switch, mast height switch on door frame, gantry angle sensor on dump ram, hypsokinesis step switch on multichannel valve assembly, raising step switch on multichannel valve assembly, working connection off-load solenoid valve on multichannel valve assembly, the decline oil circuit off-load solenoid valve on multichannel valve assembly and the engine controller on console；Master controller is electrically connected with pallet fork leveling switch, mast height switch, gantry angle sensor, hypsokinesis step switch, raising step switch, working connection off-load solenoid valve and decline oil circuit off-load solenoid valve respectively.The utility model has the characteristics of can effectively improving fork truck working efficiency and stability, protecting operator and cargo security.
Description
Technical field
The utility model relates to fork truck technical fields, can effectively improve fork truck working efficiency and stabilization more particularly, to one kind
Property, protect the fork truck of operator and cargo security work safety control.
Background technique
In operation process, the actual angle of door frame is difficult to accurately the equipment of diesel fork lift truck because of driver visual angle obstacle
It determines, pallet fork does not cause easily cargo to squeeze and fall damage at horizontal position when stack goods, and the door frame of fork truck is in the shape that leans forward
When state, progress lift operation will cause cargo and fall and cause safety accident, if being promoted by force when not can determine that gantry angle
Engine speed will seriously affect the stability and safe operation of vehicle；When equipment load-carrying is bigger, do not passing through oil
In the case that door pedal promotes engine speed, the speed of equipment raising is very low, it is also possible to because external load is greater than
Engine output and lead to engine misses.
Utility model content
The purpose of the invention of the present invention is to overcome, stability in the prior art is high, misoperation easily sends out safety
Accident, the deficiency for easily leading to engine misses, fork truck working efficiency and stability, protection operation can be effectively improved by providing one kind
The fork truck of personnel and cargo security work safety control.
To achieve the goals above, the utility model uses following technical scheme:
A kind of fork truck work safety control, fork truck includes vehicle frame, and the door frame connecting on vehicle frame with vehicle frame is set to
Gear shelf on door frame, the pallet fork connecting with gear shelf on gear shelf, the console in vehicle frame are set to console
On multichannel valve assembly, connect with multichannel valve assembly multi-way valve inclination connection valve rod, the multi-way valve control being connect with multichannel valve assembly
Bar processed and the dump ram on door frame；Including the master controller being set on fork truck console, it is set to multi-way valve inclination connection valve
Pallet fork in the operation handle of bar levels switch, the mast height switch on door frame, the door frame angle on dump ram
Sensor, the hypsokinesis step switch on multichannel valve assembly are spent, the raising step switch on multichannel valve assembly is set to more
Working connection off-load solenoid valve on the valve assembly of road, decline oil circuit off-load solenoid valve on multichannel valve assembly and is set to console
On engine controller；Master controller is switched with pallet fork leveling respectively, mast height switchs, gantry angle sensor, hypsokinesis
Step switch, raising step switch, working connection off-load solenoid valve and decline oil circuit off-load solenoid valve electrical connection.
The utility model is opened by setting pallet fork leveling switch, mast height switch, gantry angle sensor, hypsokinesis movement
It closes, raising step switch, limits the dynamic of section hydraulic system when fork truck working device is in unsteady state by master controller
Make, if limiting the lift operation of pallet fork when door frame forward leaning angle is larger and increasing the operation of door frame forward leaning angle, plays protection behaviour
Make the safety of personnel and cargo.
Preferably, door frame includes inner upright mounting and the outer mast that connect with inner upright mounting, mast height switch is that Hall type is non-
Touch switch, mast height switch are located on outer mast, and inner upright mounting is equipped with metal induction strip.
Preferably, metal induction strip is placed along the direction of motion of inner upright mounting, metal induction strip is fixedly connected with inner upright mounting；
Outer mast is equipped with safe altitude graduation mark, and mast height switch is located on safe altitude graduation mark.Mast height inductive switching
It is mast height switch closed condition when to metal induction strip；It is door when mast height switch cannot sense metal induction strip
Frame level switch off-state.
Preferably, dump ram includes cylinder body and the earrings that connect with cylinder body, gantry angle sensor is located at inclination oil
On the earrings of cylinder, dump ram is equipped with connecting rod, and one end of connecting rod is connect with gantry angle sensor, the other end and inclination
The cylinder body of oil cylinder connects.
Preferably, hypsokinesis step switch and raising step switch are microswitch, hypsokinesis step switch and raising are dynamic
Switching can be in contact with corresponding multi-way valve control-rod.Multi-way valve control-rod moves upwards, and multi-way valve control-rod pushes micro-
Dynamic switch contact closure, as microswitch closed state.
Preferably, pallet fork leveling switch is normally opened contact formula button switch.Pallet fork leveling switch is according to whether adjust
It is flat to be manually controlled.
Preferably, further including the camera set on pallet fork front end and the display screen on fork truck console, camera
It is electrically connected with master controller with display screen.
Therefore, the utility model has the following beneficial effects: leveling switch, mast height switch, door by setting pallet fork
Frame angular transducer, hypsokinesis step switch, raising step switch are in unsteady state in fork truck working device by master controller
When limit the movement of section hydraulic system, play the role of protecting operator and cargo security, increase the steady of fork truck system
It is qualitative, it effectively prevent engine misses.
Detailed description of the invention
Fig. 1 is a kind of system control principle schematic diagram of the utility model；
Fig. 2 is a kind of pallet fork leveling switch structure diagram of the utility model；
Fig. 3 is a kind of mast height switch structure diagram of the utility model；
Fig. 4 is a kind of gantry angle sensor fixing structure schematic diagram of the utility model；
Fig. 5 is a kind of hypsokinesis movement switch installing structure schematic diagram of the utility model.
In figure: master controller 1, pallet fork leveling switch 2, mast height switch 3, gantry angle sensor 4, hypsokinesis movement are opened
5 are closed, raising step switch 6, working connection off-load solenoid valve 7 declines oil circuit off-load solenoid valve 8, inner upright mounting 9, outer mast 10, metal
Induction strip 11, earrings 12, connecting rod 13, multi-way valve control-rod 14.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
Embodiment as shown in Figure 1 is a kind of fork truck work safety control, and fork truck includes vehicle frame, be set on vehicle frame with
The door frame of vehicle frame connection, the gear shelf on door frame, the pallet fork connecting with gear shelf on gear shelf are set in vehicle frame
Console, the multichannel valve assembly on console, connect with multichannel valve assembly multi-way valve inclination connection valve rod, with multi-way valve
The multi-way valve control-rod and the dump ram on door frame of assembly connection；Including be set to fork truck console on master controller 1,
Pallet fork leveling switch 2 in the operation handle that multi-way valve tilts connection valve rod, the mast height switch 3 on door frame, if
In the gantry angle sensor 4 on dump ram, hypsokinesis step switch 5 on multichannel valve assembly is set to multichannel valve assembly
On raising step switch 6, the working connection off-load solenoid valve 7 on multichannel valve assembly and the decline on multichannel valve assembly
Oil circuit off-load solenoid valve 8；Master controller is switched with pallet fork leveling respectively, mast height switchs, gantry angle sensor, backward motion
It switchs, raising step switch, working connection off-load solenoid valve and decline oil circuit off-load solenoid valve are electrically connected.Fork truck work safety control
Device processed further includes the camera set on pallet fork front end and the display screen on fork truck console, camera and display screen with
Master controller electrical connection.
As shown in figure 3, door frame includes inner upright mounting 9 and the outer mast connecting with inner upright mounting 10, mast height switch is Hall
Type non-contact switch, mast height switch are located on outer mast, and inner upright mounting is equipped with metal induction strip 11.Metal induction strip edge
The direction of motion of inner upright mounting is placed, and metal induction strip is fixedly connected with inner upright mounting；Outer mast is equipped with safe altitude graduation mark, door
Frame level switch is located on safe altitude graduation mark.
As shown in figure 4, dump ram includes cylinder body and the earrings that connect with cylinder body, gantry angle sensor is located at inclination oil
On the earrings 12 of cylinder, dump ram is equipped with connecting rod 13, and one end of connecting rod connect with gantry angle sensor, the other end and
The cylinder body of dump ram connects.
As shown in figure 5, hypsokinesis step switch and raising step switch are microswitch, hypsokinesis step switch and raising are dynamic
Switching can be in contact with corresponding multi-way valve control-rod 14.
As shown in Fig. 2, pallet fork leveling switch is normally opened contact formula button switch.
The course of work of the utility model is as follows:
It is normal operating mode when pallet fork leveling switch disconnects, mast height closes the switch, i.e. the operation of equipment is high
When spending lower, the function of all control actions is may be implemented in the equal normal power supply of two way solenoid valves in multichannel valve assembly at this time.Goods
When fork leveling switch disconnects, disconnected when fork height switchs, i.e. when the operation height of equipment is higher, due to safety concerns,
Pallet fork is not allowed to be in the state that wide-angle leans forward, master controller can be according to the input signal distinguishing door frame of gantry angle sensor
Current tilt angle, if tilt angle less than 90 degree, can carry out inclination and lift operation, the two-way in multichannel valve assembly
The equal normal power supply of solenoid valve；When the angle to lean forward is more than or equal to 90 degree, working connection off-load solenoid valve on multichannel valve assembly is cut off
Power supply, equipment at this time only support two operation, first is that decline control function (at this time decline off-load solenoid valve normally supply
Electricity), second is that carrying out hypsokinesis operation, when hypsokinesis movement closes the switch and raising step switch disconnects, restore working connection off-load electromagnetism
The power supply of valve.
When pallet fork leveling switch disconnects, only when mast height closes the switch, i.e. equipment operation height is lower, door frame angle
The tilt angle of sensor feedback is spent less than 90 degree, and when raising step switch is closed, master controller is issued to engine controller
TSC1 control instruction is promoted the revolving speed of engine to high idle from low idling (generally 750n/min) by speed control method
Fast (1500n/min), bus protocol follow SAE J1939-71 standard, have carried out lift operations, prevent from stopping working.
Pallet fork leveling, which closes the switch, then enters pallet fork Levelling operation mode, and master controller can be according to gantry angle sensor
The current tilt angle of input signal distinguishing door frame, if tilt angle less than 90 degree, can pass through the bank control hand of multi-way valve
Handle is leveled, before pallet fork is not up to horizontal position, working connection off-load solenoid valve and decline oil circuit off-load solenoid valve normal power supply；
When pallet fork reaches horizontal position or current tilt angle is greater than 90 degree, the power supply of working connection off-load solenoid valve, Zhi Nengjin are cut off
Row step-down operation (declining off-load solenoid valve normal power supply at this time) is operated with hypsokinesis, and hypsokinesis movement closes the switch and raising movement is opened
When shutdown is opened, restore the power supply of working connection off-load solenoid valve, pallet fork moves to horizontal position from the position greater than 90 degree during this
Set the power supply for also not cutting off working connection off-load solenoid valve.
It should be understood that the present embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.Furthermore
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (7)
- The safety control 1. a kind of fork truck works, fork truck includes vehicle frame, the door frame connecting on vehicle frame with vehicle frame, is set to door Gear shelf on frame, the pallet fork connecting with gear shelf on gear shelf, the console in vehicle frame are set on console Multichannel valve assembly, the multi-way valve inclination connection valve rod connecting with multichannel valve assembly, the multi-way valve that connect with multichannel valve assembly controls Bar and the dump ram on door frame；It is characterized in that being set to multichannel including the master controller (1) being set on fork truck console Pallet fork leveling switch (2) in the operation handle of valve inclination connection valve rod, mast height on door frame switch (3), set on inclining Gantry angle sensor (4) on oblique oil cylinder, the hypsokinesis step switch (5) on multichannel valve assembly are set to multichannel valve assembly On raising step switch (6), working connection off-load solenoid valve (7) on multichannel valve assembly and on multichannel valve assembly Decline oil circuit off-load solenoid valve (8)；Master controller respectively with pallet fork leveling switch, mast height switch, gantry angle sensor, Hypsokinesis step switch, raising step switch, working connection off-load solenoid valve and decline oil circuit off-load solenoid valve electrical connection.
- The safety control 2. fork truck according to claim 1 works, characterized in that door frame include inner upright mounting (9) and with The outer mast (10) of inner upright mounting connection, mast height switch are Hall type non-contact switch, and mast height switch is located at external door On frame, inner upright mounting is equipped with metal induction strip (11).
- The safety control 3. fork truck according to claim 2 works, characterized in that fortune of the metal induction strip along inner upright mounting Dynamic direction is placed, and metal induction strip is fixedly connected with inner upright mounting；Outer mast is equipped with safe altitude graduation mark, mast height switch On safe altitude graduation mark.
- The safety control 4. fork truck according to claim 1 works, characterized in that dump ram includes cylinder body and and cylinder The earrings of body connection, gantry angle sensor are located on the earrings (12) of dump ram, and dump ram is equipped with connecting rod (13), One end of connecting rod is connect with gantry angle sensor, the cylinder body connection of the other end and dump ram.
- The safety control 5. fork truck according to claim 1 works, characterized in that hypsokinesis step switch and raising movement Switch is microswitch, and hypsokinesis step switch and raising step switch can connect with corresponding multi-way valve control-rod (14) Touching.
- The safety control 6. fork truck according to claim 1 works, characterized in that pallet fork leveling switch is normally opened contact Formula button switch.
- The safety control 7. fork truck according to claim 1 or 2 or 3 or 4 or 5 or 6 works, characterized in that further include Camera set on pallet fork front end and the display screen on fork truck console, camera and display screen are electrically connected with master controller It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820405863.0U CN208345688U (en) | 2018-03-23 | 2018-03-23 | Fork truck work safety control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820405863.0U CN208345688U (en) | 2018-03-23 | 2018-03-23 | Fork truck work safety control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208345688U true CN208345688U (en) | 2019-01-08 |
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ID=64885466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820405863.0U Active CN208345688U (en) | 2018-03-23 | 2018-03-23 | Fork truck work safety control |
Country Status (1)
| Country | Link |
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| CN (1) | CN208345688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028022A (en) * | 2019-05-13 | 2019-07-19 | 浙江加力仓储设备股份有限公司 | A kind of hydraulic valve bank control system and the intelligent carrier-and-stacker with it |
-
2018
- 2018-03-23 CN CN201820405863.0U patent/CN208345688U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028022A (en) * | 2019-05-13 | 2019-07-19 | 浙江加力仓储设备股份有限公司 | A kind of hydraulic valve bank control system and the intelligent carrier-and-stacker with it |
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