CN107964992A - Folder wood fork loading machine energy-saving hydraulic system - Google Patents
Folder wood fork loading machine energy-saving hydraulic system Download PDFInfo
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- CN107964992A CN107964992A CN201711194497.5A CN201711194497A CN107964992A CN 107964992 A CN107964992 A CN 107964992A CN 201711194497 A CN201711194497 A CN 201711194497A CN 107964992 A CN107964992 A CN 107964992A
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- pressure switch
- loading machine
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- 239000002023 wood Substances 0.000 title claims abstract description 46
- 239000002828 fuel tank Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 32
- 238000007599 discharging Methods 0.000 abstract description 22
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 55
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000020091 Dicranocarpus parviflorus Species 0.000 description 1
- 101001093690 Homo sapiens Protein pitchfork Proteins 0.000 description 1
- 102100036065 Protein pitchfork Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
- E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/425—Drive systems for dipper-arms, backhoes or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The invention discloses one kind to press from both sides wood fork loading machine energy-saving hydraulic system, it belongs to technical field of engineering machinery.It solves in the prior art the defects of discharging is fast with jag slowly existing for tradition folder wood fork loader hydraulic system, easily injures hull accident by a crashing object.Its agent structure includes duplex pump, multi-way valve, fork oil cylinder, rotary ink tank, boom cylinder, swing arm joint control pilot handle, rotating bucket joint control pilot handle, fork joint control pilot handle, fuel tank, the first solenoid directional control valve, first pressure switch, second pressure switch and the 3rd pressure switch, the left side oil outlet of duplex pump and the oil inlet of multi-way valve connect, the right side oil outlet of duplex pump is connected with fork joint control pilot handle, and multi-way valve includes multi-way valve auxiliary connection, multi-way valve rotating bucket connection and multi-way valve swing arm connection.Present invention is mainly used on folder wood fork loading machine.
Description
Technical field：
The invention belongs to technical field of engineering machinery, and specifically, more particularly to a kind of folder wood pitches loading machine energy-conserving hydraulic
System.
Background technology：
Multi function loader, also known as differentiation loading machine, it can not only realize loading machine spading, loading, the function of transhipment,
And can be attached by replacing, expanded using the auxiliary connection of multi-way valve realize folder wood, grab grass, grab pipe, embrace a careless, secondary height unload etc. it is more
Item function.From the point of view of the development trend of engineering machinery in recent years, product transformation upgrades the theme for having become development, multi-functional
Loading machine comes into being and using extensive.From the point of view of multi function loader is with regard to type species, more than 70% type be folder wood fork and
Pitch-fork is grabbed, and both working methods are essentially identical, and most types are using the advantageous hydraulic operation mode of comfort
Substitute traditional mechanical handling mode.
The folder wood fork at harbour is mainly used for loading and unloading and transporting timber at present, needs to carry out discharging, discharging in entrucking
When should work efficiency it is high, and require operation comfortable good, thus there are the problem of have：
When folder lifts the folder wood fork of material in discharging, once center of gravity has crossed hinge joint, dead point is generally referred to as crossed, has pressed from both sides wood fork
Just downward discharging action is completed in 0.3S or so in the case where oil pressure is not yet established by gravity；But oil pressure is needed at this time
The jag that can be completed is acted due to discharge time only 0.3S, since the time is too short, is caused the oil pressure of system to have little time jag, is caused
Discharging cannot be carried out at the same time with jag action, it is impossible to completed whole discharge process, and easily caused and injure hull accident by a crashing object.
Its convention resolution method has：
1st, the slow conventional way of jag is to increase the discharge capacity of pump, while the diameter of oversize piston bar, so that reducing jag needs
The oil mass wanted, but it has the disadvantage that again：1) pump increases and cylinder piston rod overstriking can increase former cost at least 10%；2)
After cylinder piston rod overstriking, active area is reduced, and reduces the thrust of jag；3) after pumpage increases, energy is not only resulted in
Loss, and need tractor parameter to improve, such as the heat-sinking capability of radiator, the flow of multi-way valve etc..
2nd, for the fast problem of rotating bucket discharging, back pressure can be increased to realize by system, but exist again using this method
Following shortcoming：Since back pressure persistently exists, great energy loss can be caused.
It the analysis found that folder wood fork discharging is too fast to be primarily due to press from both sides wood fork with material after dead point has been crossed, due to
Gravity can apply the big chamber of rotary ink tank one power, but big chamber is direct oil return again, without back pressure, causes oil cylinder fast
Speed falls；At the same time small chamber due to fluid supplement not in time, low pressure or vacuum can be formed.
The content of the invention：
Injure by a crashing object soon, easily with jag slowly to solve discharging existing for tradition folder wood fork loader hydraulic system in the prior art
The shortcomings that hull accident, the present invention provides a kind of folder wood fork loading machine energy-saving hydraulic system for being different from the prior art, it is
Energy saving of uniting is high, and energy is recycled, the work efficiency of complete machine and handling, security lifting.
To achieve these goals, the present invention is realized using following technical scheme：
One kind folder wood fork loading machine energy-saving hydraulic system, including duplex pump, multi-way valve, fork oil cylinder, rotary ink tank, swing arm
Oil cylinder, swing arm joint control pilot handle, rotating bucket joint control pilot handle, fork joint control pilot handle and fuel tank, the duplex
The left side oil outlet of pump and the oil inlet of multi-way valve connect, and right side oil outlet and the fork joint control pilot handle of duplex pump connect
Connect；Multi-way valve includes multi-way valve auxiliary connection, multi-way valve rotating bucket connection and multi-way valve swing arm connection, the multi-way valve auxiliary connection and fork oil
Cylinder connects, and multi-way valve rotating bucket connection is connected with rotary ink tank, and multi-way valve swing arm connection is connected with boom cylinder；Fork joint control guide's hand
Handle aids in connection to send pressure signal to multi-way valve, and rotating bucket joint control pilot handle joins to multi-way valve rotating bucket sends pressure signal, moves
Arm joint control pilot handle joins to multi-way valve swing arm sends pressure signal；The folder wood fork loading machine energy-saving hydraulic system includes the
One solenoid directional control valve, first pressure switch, second pressure switch and the 3rd pressure switch, the hydraulic fluid port of first solenoid directional control valve
A1 is connected with rotary ink tank, and hydraulic fluid port B1 is connected with multi-way valve rotating bucket connection, and hydraulic fluid port C1 is connected with fork oil cylinder；The first pressure is opened
Close on the rod chamber oil circuit of rotary ink tank, second pressure switch is arranged on pilot control oil circuit b2, and the 3rd pressure switch is set
In on pilot control oil circuit b3.
Further, the folder wood fork loading machine energy-saving hydraulic system include the second solenoid directional control valve, the 4th pressure switch,
5th pressure switch and the 6th pressure switch, the hydraulic fluid port A2 of second solenoid directional control valve are connected with boom cylinder, hydraulic fluid port B2 with
The connection connection of multi-way valve swing arm, hydraulic fluid port C2 are connected with rotary ink tank；4th pressure switch is arranged on the rodless cavity oil circuit of rotary ink tank,
5th pressure switch is arranged on pilot control oil circuit b1, and the 6th pressure switch is arranged on pilot control oil circuit a2.
Further, the folder wood fork loading machine energy-saving hydraulic system is equipped with overflow valve, the oil inlet and duplex of overflow valve
The right side oil outlet connection of pump, oil outlet are connected with fuel tank.
Further, the folder wood fork loading machine energy-saving hydraulic system is equipped with the first check valve, first check valve
Oil inlet is connected with the hydraulic fluid port C1 of the first solenoid directional control valve, and oil outlet is connected with fork oil cylinder.
Further, the folder wood fork loading machine energy-saving hydraulic system is additionally provided with the second check valve, second check valve
Oil inlet be connected with the hydraulic fluid port C2 of the second solenoid directional control valve, oil outlet is connected with rotary ink tank.
Further, first solenoid directional control valve and the second solenoid directional control valve are two solenoid directional control valves.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, energy saving of system is lifted, and kinetic energy when efficiently utilizing scraper bowl discharging changes into the pressure for making folder wood fork fork
The energy conversion of energy；
2nd, operational security is lifted, and after scraper bowl crosses dead point, is effectively reduced the discharge rate of scraper bowl, is prevented tray carriage
The generation of accident such as smashed；
3rd, operating efficiency is lifted, and presss from both sides wood fork fork and discharging composite move perfect coordination operation.
Brief description of the drawings：
Fig. 1 is the Hydraulic System Principle schematic diagram of the present invention；
Fig. 2 is to pitch closure+lower fork in the high position in the present invention to receive bucket view；
Fig. 3 is to diverge fork+lower fork discharging view in the high position in the present invention；
Fig. 4 is swing arm extreme higher position+lower fork discharging view in the present invention；
Fig. 5 is that backward state under the swing arm in the present invention+lower fork receipts bucket arrives flattened state schematic diagram.
In figure：1st, fuel tank；2nd, overflow valve；3rd, duplex pump；4th, multi-way valve auxiliary connection；5th, multi-way valve；6th, fork oil cylinder；7th,
One check valve；8th, the first solenoid directional control valve；9th, rotary ink tank；10th, first pressure switchs；11st, the second check valve；12nd, the 4th pressure
Power switchs；13rd, the second solenoid directional control valve；14th, boom cylinder；15th, multi-way valve rotating bucket joins；16th, multi-way valve swing arm joins；17th, the 5th
Pressure switch；18th, swing arm joint control pilot handle；19th, the 6th pressure switch；20th, second pressure switchs；21st, rotating bucket joint control system
Pilot handle；22nd, the 3rd pressure switch；23rd, fork joint control pilot handle；24th, upper fork；25th, lower fork；26th, swing arm.
Embodiment：
Below by specific embodiment and with reference to attached drawing, the invention will be further described.
Embodiment 1：
As shown in Figure 1, a kind of folder wood fork loading machine energy-saving hydraulic system, including duplex pump 3, multi-way valve 5, fork oil cylinder 6,
Rotary ink tank 9, boom cylinder 14, swing arm joint control pilot handle 18, rotating bucket joint control pilot handle 21, fork joint control guide
Handle 23 and fuel tank 1, the left side oil outlet of duplex pump 3 are connected with the oil inlet of multi-way valve 5, the right side oil outlet of duplex pump 3 with
Fork joint control pilot handle 23 connects；Multi-way valve 5 includes multi-way valve auxiliary connection 4, multi-way valve rotating bucket connection 15 and multi-way valve swing arm
Connection 16, multi-way valve auxiliary connection 4 are connected with fork oil cylinder 6, and multi-way valve rotating bucket connection 15 is connected with rotary ink tank 9, multi-way valve swing arm connection
16 are connected with boom cylinder 14；Fork joint control pilot handle 23 sends pressure signal, rotating bucket joint control system to multi-way valve auxiliary connection 4
Pilot handle 21 sends pressure signal to multi-way valve rotating bucket connection 15, and swing arm joint control pilot handle 18 is sent out to multi-way valve swing arm connection 16
Pressurization pressure signal；The folder wood fork loading machine energy-saving hydraulic system includes the first solenoid directional control valve 8, first pressure switch 10, the
Two pressure switches 20 and the 3rd pressure switch 22, the hydraulic fluid port A1 of the first solenoid directional control valve 8 are connected with rotary ink tank 9, hydraulic fluid port B1 with
15 connection of multi-way valve rotating bucket connection, hydraulic fluid port C1 are connected with fork oil cylinder 6；First pressure switch 10 is arranged on the rod chamber of rotary ink tank 9
On oil circuit, second pressure switch 20 is arranged on pilot control oil circuit b2, and the 3rd pressure switch 22 is arranged on pilot control oil circuit b3.
Embodiment 2：
One kind folder wood fork loading machine energy-saving hydraulic system includes the second solenoid directional control valve 13, the 4th pressure switch the 12, the 5th
17 and the 6th pressure switch 19 of pressure switch, the hydraulic fluid port A2 of the second solenoid directional control valve 13 are connected with boom cylinder 14, hydraulic fluid port B2 with
16 connection of multi-way valve swing arm connection, hydraulic fluid port C2 are connected with rotary ink tank 9；4th pressure switch 12 is arranged on the rodless cavity of rotary ink tank 9
On oil circuit, the 5th pressure switch 17 is arranged on pilot control oil circuit b1, and the 6th pressure switch 19 is arranged on pilot control oil circuit a2.
Other parts are same as Example 1.
Embodiment 3：
One kind folder wood fork loading machine energy-saving hydraulic system is equipped with overflow valve 2, the oil inlet of overflow valve 2 and the right side of duplex pump 3
Side oil outlet connection, oil outlet are connected with fuel tank 1.Other parts are same as Example 2.
Embodiment 4：
One kind folder wood fork loading machine energy-saving hydraulic system is equipped with the first check valve 7, the oil inlet and first of the first check valve 7
The hydraulic fluid port C1 connections of solenoid directional control valve 8, oil outlet are connected with fork oil cylinder 6.Other parts are same as Example 3.
Embodiment 5：
One kind folder wood fork loading machine energy-saving hydraulic system is additionally provided with the second check valve 11, the oil inlet of the second check valve 11 with
The hydraulic fluid port C2 connections of second solenoid directional control valve 13, oil outlet are connected with rotary ink tank 9；First solenoid directional control valve 8 and the second electromagnetism
Reversal valve 13 is two solenoid directional control valves.Other parts are same as Example 4.
The present invention operation principle be：
State such as Fig. 2 to Fig. 3 is operating mode one, i.e., high-order 25 discharging of lower fork+above pitch 24 jag composite moves.
Operating mode for the moment, while manipulates rotating bucket joint control pilot handle 21 and fork joint control pilot handle 23, rotating bucket joint control
Pilot handle 21 processed controls multi-way valve rotating bucket connection 15 to commutate, and the fluid flowed out from duplex pump 3 enters by multi-way valve 5 to be turned
The rod chamber of bucket oil cylinder 9, realizes the retraction of rotary ink tank 9, presss from both sides wood fork and carries out discharging；Fork joint control pilot handle 23 controls more
Road valve auxiliary connection 4 commutates, and the fluid flowed out from duplex pump 3 enters the rod chamber of fork oil cylinder 6, fork by multi-way valve 5
Seed oil cylinder 6 realizes retraction；Folder wood fork is when jag discharging is carried out, due to the effect of rotary ink tank 9, promote folder wood fork with
Material, after material is by dead point, the fast automatic whereabouts of meeting under the action of load, because folder wood fork is used to load and unload large-scale wood
Material, is not the bulk cargo of loading machine, it is impossible to which hurtle down discharging, to prevent from injuring by a crashing object tray carriage, therefore passes through 10 prison of first pressure switch
The pressure of the rod chamber of rotary ink tank 9 is surveyed, whether identification rotary ink tank 9 has been crossed dead point, if pressure is less than 0.5MPa, illustrated
Dead point, then 10 closure of first pressure switch；Pass through the guide of 20 monitoring rotating bucket joint control pilot handle 21 of second pressure switch
Pressure, the pilot pressure of the 3rd pressure switch 22 monitoring fork joint control pilot handle 23, if second pressure switch 20 and the
The pilot pressure of three pressure switches 22 is simultaneously greater than 1MPa, and second pressure switch 20 and the 3rd pressure switch 22 all close, explanation
Fork joint control pilot handle 23 starts to operate, first pressure switch 10, second pressure switch 20 and the 3rd pressure switch 22
The first solenoid directional control valve 8 is initially powered up when being closed at, the upper start-up operation of the first solenoid directional control valve 8, to 25 discharging of lower fork
The rodless cavity oil return of rotary ink tank 9 throttle, produce back pressure, reduce discharge rate, while produced after rodless cavity throttling
High-voltage oil liquid is flowed into the rod chamber of fork oil cylinder 6 by hydraulic fluid port A1, hydraulic fluid port C1, the first check valve 7, improves fork oil cylinder 6
Jag speed, realize that discharging is slow, jag is fast and the purpose to system capacity recycling.Mended using the kinetic energy of 25 discharging of lower fork
Fill the hydraulic energy of 24 jags of fork with, the composite move of 24 jags and 25 discharging of lower fork is pitched in realization.
State such as Fig. 4 to Fig. 5 is operating mode two, i.e., swing arm 26 fall+25 discharging of lower fork receive bucket arrive horizontal level.
During operating mode two, since swing arm 26 falls on horizontal level under extreme higher position, while allow lower fork 25 from discharge position to
Level receives bucket position so as to carry out next work cycle, and the rodless cavity of rotary ink tank 9 is monitored by the 4th pressure switch 12
Pressure, when pressure is less than 2MPa, the 4th pressure switch 12 is closure, first to swing arm joint control system by the 5th pressure switch 17
Pilot pressure when leading the decline of swing arm 26 of handle 18 is monitored, and the 6th pressure switch 19 is to rotating bucket joint control pilot handle 21
Fork receive bucket when pilot pressure be monitored, when the pilot pressure of the 5th pressure switch 17 and the 6th pressure switch 19 at the same time
The 5th pressure switch 17 and the 6th pressure switch 19 close during more than 1MPa；When the 4th pressure switch 12, the 5th pressure switch 17
When being closed at the 6th pressure switch 19, control the second solenoid directional control valve 13 be initially powered up, the second solenoid directional control valve 13 it is upper
Position start to work, throttle to the rodless cavity of boom cylinder 14, realize and slowed down under swing arm 26, at the same boom cylinder 14 without bar
The high-voltage oil liquid produced after fluid throttling in chamber is flowed into rotary ink tank 9 by hydraulic fluid port A2, hydraulic fluid port C2, the second check valve 11
Rodless cavity, realizes that lower fork 25 receives the fast purpose that struggles against.The kinetic energy declined using swing arm 26 is converted into the hydraulic energy that lower fork 25 receives bucket, under
Fork 25 receives bucket and arrives horizontal level, and energy is recycled utilization, reduces energy consumption and net cycle time, while reduces behaviour
Control difficulty.
Wood fork is pressed from both sides described in text includes fork 24 and lower fork 25.
Claims (6)
1. one kind folder wood fork loading machine energy-saving hydraulic system, including duplex pump (3), multi-way valve (5), fork oil cylinder (6), rotating bucket oil
Cylinder (9), boom cylinder (14), swing arm joint control pilot handle (18), rotating bucket joint control pilot handle (21), fork joint control system are first
Handle (23) and fuel tank (1) are led, the left side oil outlet of the duplex pump (3) is connected with the oil inlet of multi-way valve (5), duplex pump
(3) right side oil outlet is connected with fork joint control pilot handle (23)；Multi-way valve (5) includes multi-way valve auxiliary connection (4), multichannel
Valve rotating bucket joins (15) and multi-way valve swing arm connection (16), and the multi-way valve auxiliary connection (4) is connected with fork oil cylinder (6), and multi-way valve turns
Bucket connection (15) is connected with rotary ink tank (9), and multi-way valve swing arm connection (16) is connected with boom cylinder (14)；Fork joint control guide's hand
Handle (23) aids in connection (4) to send pressure signal to multi-way valve, and rotating bucket joint control pilot handle (21) joins (15) to multi-way valve rotating bucket
Pressure signal is sent, swing arm joint control pilot handle (18) sends pressure signal to multi-way valve swing arm connection (16)；It is characterized in that：
The folder wood fork loading machine energy-saving hydraulic system includes the first solenoid directional control valve (8), first pressure switch (10), second pressure and opens
Close (20) and the 3rd pressure switch (22), the hydraulic fluid port A1 of first solenoid directional control valve (8) are connected with rotary ink tank (9), hydraulic fluid port
B1 is connected with multi-way valve rotating bucket connection (15), and hydraulic fluid port C1 is connected with fork oil cylinder (6)；The first pressure switch (10) is arranged on rotating bucket
On the rod chamber oil circuit of oil cylinder (9), second pressure switch (20) is arranged on pilot control oil circuit b2, and the 3rd pressure switch (22) is set
In on pilot control oil circuit b3.
2. folder wood fork loading machine energy-saving hydraulic system according to claim 1, it is characterised in that：The folder wood fork loading machine
Energy-saving hydraulic system includes the second solenoid directional control valve (13), the 4th pressure switch (12), the 5th pressure switch (17) and the 6th pressure
Power switchs (19), and the hydraulic fluid port A2 of second solenoid directional control valve (13) is connected with boom cylinder (14), hydraulic fluid port B2 and multichannel valve actuation
Arm connection (16) connection, hydraulic fluid port C2 are connected with rotary ink tank (9)；4th pressure switch (12) is arranged on the rodless cavity of rotary ink tank (9)
On oil circuit, the 5th pressure switch (17) is arranged on pilot control oil circuit b1, and the 6th pressure switch (19) is arranged on pilot control oil circuit
On a2.
3. folder wood fork loading machine energy-saving hydraulic system according to claim 2, it is characterised in that：The folder wood fork loading machine
Energy-saving hydraulic system is equipped with overflow valve (2), and the oil inlet of overflow valve (2) is connected with the right side oil outlet of duplex pump (3), oil outlet
It is connected with fuel tank (1).
4. folder wood fork loading machine energy-saving hydraulic system according to claim 3, it is characterised in that：The folder wood fork loading machine
Energy-saving hydraulic system is equipped with the first check valve (7), the oil inlet of first check valve (7) and the first solenoid directional control valve (8)
Hydraulic fluid port C1 connections, oil outlet are connected with fork oil cylinder (6).
5. folder wood fork loading machine energy-saving hydraulic system according to claim 4, it is characterised in that：The folder wood fork loading machine
Energy-saving hydraulic system is additionally provided with the second check valve (11), the oil inlet and the second solenoid directional control valve of second check valve (11)
(13) hydraulic fluid port C2 connections, oil outlet are connected with rotary ink tank (9).
6. folder wood fork loading machine energy-saving hydraulic system according to claim 5, it is characterised in that：First electromagnetic switch
Valve (8) and the second solenoid directional control valve (13) are two solenoid directional control valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194497.5A CN107964992B (en) | 2017-11-24 | 2017-11-24 | Energy-saving hydraulic system of wood clamping fork loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194497.5A CN107964992B (en) | 2017-11-24 | 2017-11-24 | Energy-saving hydraulic system of wood clamping fork loader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107964992A true CN107964992A (en) | 2018-04-27 |
| CN107964992B CN107964992B (en) | 2023-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711194497.5A Active CN107964992B (en) | 2017-11-24 | 2017-11-24 | Energy-saving hydraulic system of wood clamping fork loader |
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| CN (1) | CN107964992B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560634A (en) * | 2018-07-02 | 2018-09-21 | 广西柳工机械股份有限公司 | Hydraulic system of loading machine working device |
| CN110145507A (en) * | 2019-05-20 | 2019-08-20 | 江苏柳工机械有限公司 | Auxiliary connection hydraulic system |
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| CN102635144A (en) * | 2012-05-04 | 2012-08-15 | 山东理工大学 | Hydraulic system for loader |
| CN107288945A (en) * | 2017-07-18 | 2017-10-24 | 山东临工工程机械有限公司 | Differentiation loading machine rotating bucket joins and auxiliary connection composite control hydraulic system |
| CN207620022U (en) * | 2017-11-24 | 2018-07-17 | 山东临工工程机械有限公司 | Folder wood fork loading machine energy-saving hydraulic system |
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| JP2002021109A (en) * | 2000-07-06 | 2002-01-23 | Hitachi Constr Mach Co Ltd | Working machinery |
| JP2010031483A (en) * | 2008-07-25 | 2010-02-12 | Aimekku:Kk | Automatic control device for tilt angle of cargo handling operation machine of construction vehicle |
| CN102635144A (en) * | 2012-05-04 | 2012-08-15 | 山东理工大学 | Hydraulic system for loader |
| CN107288945A (en) * | 2017-07-18 | 2017-10-24 | 山东临工工程机械有限公司 | Differentiation loading machine rotating bucket joins and auxiliary connection composite control hydraulic system |
| CN207620022U (en) * | 2017-11-24 | 2018-07-17 | 山东临工工程机械有限公司 | Folder wood fork loading machine energy-saving hydraulic system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560634A (en) * | 2018-07-02 | 2018-09-21 | 广西柳工机械股份有限公司 | Hydraulic system of loading machine working device |
| CN110145507A (en) * | 2019-05-20 | 2019-08-20 | 江苏柳工机械有限公司 | Auxiliary connection hydraulic system |
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