CN109236766A - A kind of side fork lifts formula and removes obstacles vehicle hydraulic system - Google Patents
A kind of side fork lifts formula and removes obstacles vehicle hydraulic system Download PDFInfo
- Publication number
- CN109236766A CN109236766A CN201811176034.0A CN201811176034A CN109236766A CN 109236766 A CN109236766 A CN 109236766A CN 201811176034 A CN201811176034 A CN 201811176034A CN 109236766 A CN109236766 A CN 109236766A
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- Prior art keywords
- way valve
- hydraulic
- valve
- fork
- fluid port
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- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/023—Excess flow valves, e.g. for locking cylinders in case of hose burst
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Formula is lifted the present invention relates to a kind of side fork to remove obstacles vehicle hydraulic system, belongs to special-purpose vehicle manufacturing technology field.The present invention is made of gear pump, unloading valve, multi-way valve A, multi-way valve B and multi-way valve C, power takeoff is connected on chassis, power takeoff is connect with gear pump, and gear pump is connected to by oil pipe with fuel reserve tank, and the oil outlet of gear pump is connected separately with multi-way valve A, multi-way valve B and multi-way valve C by unloading valve；The executive component hydraulic fluid port of multi-way valve A, multi-way valve B and multi-way valve C are connected to each executive component by oil pipe control respectively, the flow of each executive component is controlled according to the related needs that side fork lifts the operation of formula obstacles removing car, to reach the fork act synchronism for meeting job requirements.The present invention has the characteristics that compact-sized, light-weight, power density is big, is easy to arrange using hydraulic as vehicle power source；The high level of synchronization of related executive component improves fork and lifts safety.
Description
Technical field
Formula is lifted the present invention relates to a kind of side fork to remove obstacles vehicle hydraulic system, belongs to special-purpose vehicle manufacturing technology field.
Background technique
Side fork more complicated for mechanism is lifted for formula obstacles removing car, and the control operation of each executing agency is just necessary
Accomplish precisely fork otherwise gently then occur and lift cargo rollover the problem of leading to property damage, it is heavy then safety accident occur, so suddenly
A set of hydraulic system need to be developed, to realize that system is safe, reliable, efficient, energy saving, steady, while also there is emergency function.
Summary of the invention
It is an object of the present invention in view of the above shortcomings of the prior art, provide that a kind of control is simple and reliable, it is each to can ensure that
The accurate side fork in place of a executing agency lifts formula and removes obstacles vehicle hydraulic system.
The present invention is to realize above-mentioned purpose by following technical solution:
The side fork lift formula remove obstacles vehicle hydraulic system by fuel reserve tank, gear pump, unloading valve, multi-way valve A, multi-way valve B, multi-way valve C,
Balanced valve, synchronous valve, bidirectional relief valve and oil return box are constituted, and power takeoff is connected on chassis, it is characterised in that: power takeoff and tooth
Wheel pump connection, gear pump are connected to by oil pipe with fuel reserve tank, and the oil outlet of gear pump is connected separately with multi-way valve by unloading valve
A, multi-way valve B and multi-way valve C；Hydraulic fluid port A1, B1 of multi-way valve A has been arranged in series front left pallet fork hydraulic motor and preceding by balanced valve
Right fork hydraulic motor, hydraulic fluid port A2, B2 of multi-way valve A are provided with front swing arm dividing oil cylinder by hydraulic lock；The hydraulic fluid port of multi-way valve B
A3, B3 have been arranged in parallel preceding hydraulic leg and rear hydraulic leg by synchronous valve, and hydraulic fluid port A4, B4 of multi-way valve B passes through hydraulic lock
Horizontal door frame vertical shift hydraulic cylinder before being provided with, hydraulic fluid port A5, B5 of multi-way valve B are arranged in parallel by bidirectional relief valve and synchronous valve
There are preceding portal frame hydraulic motor and back gantry hydraulic motor, hydraulic fluid port A6, B6 of multi-way valve B are provided with rear-swing arm by hydraulic lock
Dividing oil cylinder, before hydraulic fluid port A7, B7 of multi-way valve B have been arranged in parallel by one-way throttle valve and synchronous valve lifting hydraulic cylinder and after
Hydraulic cylinder is lifted, hydraulic fluid port A8, B8 of multi-way valve B has been arranged in series rear left pallet fork hydraulic motor and rear right fork by balanced valve
Hydraulic motor；Hydraulic fluid port A9, B9 hydraulic fluid port A10, B10 of multi-way valve C is the spare connection hydraulic fluid port of executing agency；The multi-way valve
A, the oil return inlet T of multi-way valve B and multi-way valve C pass through oil pipe respectively and are connected to oil return box by unloading valve.
The unloading valve is connect with electrical system.
Multi-way valve A, the multi-way valve B is connected to control and be provided with by electrical system and be manually controlled respectively with multi-way valve C
Bar.
The speed that the preceding lifting hydraulic cylinder and rear lifting hydraulic cylinder control front and back portal frame rises is 0.1-
0.2m/s, the speed of decline are 0.05-0.1m/s.
The speed that the preceding lifting hydraulic cylinder and rear lifting hydraulic cylinder control front and back portal frame rises is 0.15m/
S, decrease speed 0.075m/s.
The front left pallet fork hydraulic motor, preceding right fork hydraulic motor, rear left pallet fork hydraulic motor, rear right fork are hydraulic
The movement speed of the corresponding pallet fork of motor control is 0.25-0.5m/s.
The front left pallet fork hydraulic motor, preceding right fork hydraulic motor, rear left pallet fork hydraulic motor, rear right fork are hydraulic
The movement speed of the corresponding pallet fork of motor control is 0.3-0.35m/s.
The described preceding horizontal door frame vertical shift hydraulic cylinder control it is mobile when horizontal door frame assembly speed be 0.1-
0.4m/s。
The described preceding horizontal door frame vertical shift hydraulic cylinder control it is mobile when horizontal door frame assembly speed be 0.15-
0.2m/s。
The beneficial effect of the present invention compared with prior art is:
The side fork lifts formula and removes obstacles vehicle hydraulic system using hydraulic as vehicle power source, with compact-sized, light-weight, power is close
Degree is big, is easy to the characteristics of arranging, the hydraulic system can switching between driving states and working condition, and only in fork carriage
Engine raises speed when rising, remaining acts equal idling and carries out, and greatly improves the service life of hydraulic system, while reducing fever, saves
It can emission reduction；The side fork, which lifts formula vehicle hydraulic system of removing obstacles, can make the transverse shifting of every group of pallet fork synchronous, keep two groups of lifting mechanisms same
Step, the transverse shifting of portal frame are all synchronous, ensure that fork lifts the stationarity in operation process, improve fork and lift safety.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1, fuel reserve tank, 2, gear pump, 3, unloading valve, 4, multi-way valve A, 5, multi-way valve B, 6, multi-way valve C, 7, balance
Valve, 8, synchronous valve, 9, bidirectional relief valve, 10, oil return box, 11, power takeoff, 12, chassis, 13, front left pallet fork hydraulic motor, 14,
Preceding right fork hydraulic motor, 15, hydraulic lock, 16, front swing arm dividing oil cylinder, 17, Solenoid ball valve, 18, preceding hydraulic leg, 19, after
Hydraulic leg, 20, preceding horizontal door frame vertical shift hydraulic cylinder, 21, preceding portal frame hydraulic motor, 22, back gantry hydraulic motor,
23, rear-swing arm dividing oil cylinder, 24, one-way throttle valve, 25, preceding lifting hydraulic cylinder, 26, lift hydraulic cylinder, 27, rear left goods afterwards
Pitch hydraulic motor, 28, rear right fork hydraulic motor.
Specific embodiment
The side fork lifts formula and removes obstacles vehicle hydraulic system by fuel reserve tank 1, gear pump 2, unloading valve 3, multi-way valve A4, multi-way valve
B5, multi-way valve C6, balanced valve 7, synchronous valve 8, bidirectional relief valve 9 and oil return box 10 are constituted, and power takeoff 11 is connected on chassis 12,
Power takeoff 11 is connect with gear pump 2, and gear pump 2 is connected to by oil pipe with fuel reserve tank 1, and the oil outlet of gear pump 2 passes through unloading valve 3
It is connected separately with multi-way valve A4, multi-way valve B5 and multi-way valve C6, power takeoff 11 uses pneumatic control, easy to operate, driving conditions
The problem of middle power takeoff 11 disconnects, and gear pump 2 does not work, and greatly improves the service life of gear pump 2, reduces system heat generation；When
When executing agency does not work, hydraulic system is in unloading condition, and unloading valve 3 is connect with electrical system, when pressing scram button
When, unloading valve 3 forces power-off, hydraulic system stopping movement, while playing the role of safeguard protection；
Hydraulic fluid port A1, B1 of multi-way valve A4 has been arranged in series front left pallet fork hydraulic motor 13 by balanced valve 7 and preceding right fork is hydraulic
Motor 14, hydraulic fluid port A8, B8 of multi-way valve B5 have been arranged in series rear left pallet fork hydraulic motor 27 and rear right fork liquid by balanced valve 7
The discharge capacity of pressure motor 28, four pallet fork hydraulic motors is identical, is able to achieve motor high-precise synchronization, to realize that pallet fork is traversing
Synchronous, the movement speed by each motor control pallet fork is 0.25-0.5m/s, preferably 0.3-0.35m/s；Balanced valve 7 is set
Setting can prevent pallet fork from moving freely, and guarantee safety；
Hydraulic fluid port A2, B2 of multi-way valve A4 is provided with front swing arm dividing oil cylinder 16, hydraulic fluid port A6, B6 of multi-way valve B5 by hydraulic lock 15
Hydraulic lock 15 is provided with rear-swing arm dividing oil cylinder 23, the independent control of pallet fork spacing may be implemented, institute can be exactly matched
The spacing of cargo is pitched, the hydraulic lock 15 configured on oil circuit can guarantee that pallet fork spacing locks, improve safety and stability performance；
Hydraulic fluid port A3, B3 of multi-way valve B5 has been arranged in parallel preceding hydraulic leg 18 and rear hydraulic leg 19 by synchronous valve 8, for branch
Support front and back fork carriage guide rail, synchronous valve 8 make two supporting legs oil cylinder basic synchronization, prevent from loading uneven distortion vehicle body side member；
Horizontal door frame vertical shift hydraulic cylinder 20 before hydraulic fluid port A4, B4 of multi-way valve B5 is provided with by hydraulic lock 15, control are mobile
The speed of horizontal door frame assembly is 0.1-0.4m/s, and preferably 0.15-0.2m/s can be adjusted arbitrarily between two groups of fork carriages
Spacing, match the spacing of pitched cargo, the preceding horizontal outfit of door frame vertical shift hydraulic cylinder 20 hydraulic lock 15 prevents preceding movable type
Horizontal door frame assembly moves freely, and plays safety effect；
21 and of portal frame hydraulic motor before hydraulic fluid port A5, B5 of multi-way valve B5 has been arranged in parallel by bidirectional relief valve 9 and synchronous valve 8
Back gantry hydraulic motor 22, synchronous valve 8 keep motor inlet flow identical, portal frame carry fork carriage synchronize it is traversing, it is two-way overflow
The setting of stream valve 9 can be reduced impact when fork carriage is laterally moved to terminal；Front and back portal frame hydraulic motor respectively matches a balanced valve 7,
It prevents fork carriage from moving freely, plays safety effect；
Hydraulic fluid port A7, B7 of multi-way valve B5 lifts 25 and of hydraulic cylinder before being arranged in parallel by one-way throttle valve 24 and synchronous valve 8
Hydraulic cylinder 26 is lifted afterwards, and when fork carriage rises, engine speed-raising is controlled by electrical interlocks, so that 2 revolving speed of gear pump is improved,
Increase flow come flow needed for matching synchronous valve 8, so that within 2%, to eliminate front and back pallet fork load different for two-tank method precision
Caused by asynchrony phenomenon, guarantee that pallet fork keeps horizontal substantially, prevent from tumbling, the speed that control front and back portal frame rises is 0.1-
0.2m/s, the speed of decline are 0.05-0.1m/s, and the speed preferably risen is 0.15m/s, decrease speed 0.075m/s,
It is furnished with Solenoid ball valve 17 on preceding lifting hydraulic cylinder 25 and rear lifting hydraulic cylinder 26, cuts off self-lock, prevent cargo from falling；
Hydraulic fluid port A9, B9 hydraulic fluid port A10, B10 of multi-way valve C6 is the spare connection hydraulic fluid port of executing agency；
The oil return inlet T of multi-way valve A4, the multi-way valve B5 and multi-way valve C6 pass through oil pipe respectively and are connected to back by unloading valve 3
Fuel tank 10, multi-way valve A4, multi-way valve B5 and multi-way valve C6 are connected by electrical system respectively and are controlled and be provided with manual control lever, put down
When everything by electrical control, in electrical malfunction, by the achievable everything of manual control lever.
The above is presently preferred embodiments of the present invention, and the example above explanation not make for the essence of the present invention by content
Limitation in any form, technology of the person of an ordinary skill in the technical field after having read this specification according to the present invention
Essence is to any simple modification or deformation made by the above specific embodiment, and the technology contents possibly also with the disclosure above
The equivalent embodiment of equivalent variations is changed or is modified to, all of which are still within the scope of the technical scheme of the invention, without departing from
The spirit and scope of the invention.
Claims (9)
- The vehicle hydraulic system 1. a kind of side fork act formula is removed obstacles, it is by fuel reserve tank (1), gear pump (2), unloading valve (3), multi-way valve A (4), multi-way valve B(5), multi-way valve C(6), balanced valve (7), synchronous valve (8), bidirectional relief valve (9) and oil return box (10) constitute, Power takeoff (11) is connected on chassis (12), it is characterised in that: power takeoff (11) is connect with gear pump (2), and gear pump (2) passes through Oil pipe is connected to fuel reserve tank (1), and the oil outlet of gear pump (2) is connected separately with multi-way valve A(4 by unloading valve (3)), multi-way valve B(5) and multi-way valve C(6)；Multi-way valve A(4) hydraulic fluid port A1, B1 be arranged in series front left pallet fork hydraulic motor by balanced valve (7) (13) and preceding right fork hydraulic motor (14), multi-way valve A(4) hydraulic fluid port A2, B2 hydraulic lock (15) are provided with front swing arm point It closes oil cylinder (16)；Multi-way valve B(5) hydraulic fluid port A3, B3 be arranged in parallel preceding hydraulic leg (18) and rear hydraulic by synchronous valve (8) Supporting leg (19), multi-way valve B(5) hydraulic fluid port A4, B4 by hydraulic lock (15) be provided with before horizontal door frame vertical shift hydraulic cylinder (20), Multi-way valve B(5) hydraulic fluid port A5, B5 preceding portal frame hydraulic motor has been arranged in parallel by bidirectional relief valve (9) and synchronous valve (8) (21) and back gantry hydraulic motor (22), multi-way valve B(5) hydraulic fluid port A6, B6 hydraulic lock (15) are provided with rear-swing arm point Close oil cylinder (23), multi-way valve B(5) hydraulic fluid port A7, B7 preceding lifting has been arranged in parallel by one-way throttle valve (24) and synchronous valve (8) Hydraulic cylinder (25) and rear lifting hydraulic cylinder (26), multi-way valve B(5) hydraulic fluid port A8, B8 be arranged in series by balanced valve (8) Rear left pallet fork hydraulic motor (27) and rear right fork hydraulic motor (28)；Multi-way valve C(6) hydraulic fluid port A9, B9 hydraulic fluid port A10, B10 For the spare connection hydraulic fluid port of executing agency；The multi-way valve A(4), multi-way valve B(5) and multi-way valve C(6) oil return inlet T difference Oil return box is connected to by unloading valve (3) by oil pipe.
- The vehicle hydraulic system 2. a kind of side fork act formula according to claim 1 is removed obstacles, it is characterised in that: the unloading valve (3) it is connect with electrical system.
- The vehicle hydraulic system 3. a kind of side fork act formula according to claim 1 is removed obstacles, it is characterised in that: the multi-way valve A(4), multi-way valve B(5) control is connected by electrical system respectively with multi-way valve C(6) and is provided with manual control lever.
- The vehicle hydraulic system 4. a kind of side fork act formula according to claim 1 is removed obstacles, it is characterised in that: the preceding lifting The speed that hydraulic cylinder (25) and rear lifting hydraulic cylinder (26) control front and back portal frame rise is 0.1-0.2m/s, the speed of decline Degree is 0.05-0.1m/s.
- The vehicle hydraulic system 5. a kind of side fork act formula according to claim 4 is removed obstacles, it is characterised in that: the preceding lifting The speed that hydraulic cylinder (25) and rear lifting hydraulic cylinder (26) control front and back portal frame rise is 0.15m/s, and decrease speed is 0.075m/s。
- The vehicle hydraulic system 6. a kind of side fork act formula according to claim 1 is removed obstacles, it is characterised in that: the front left goods Pitch hydraulic motor (13), preceding right fork hydraulic motor (14), rear left pallet fork hydraulic motor (27), rear right fork hydraulic motor (28) The movement speed for controlling corresponding pallet fork is 0.25-0.5m/s.
- The vehicle hydraulic system 7. a kind of side fork act formula according to claim 6 is removed obstacles, it is characterised in that: the front left goods Pitch hydraulic motor (13), preceding right fork hydraulic motor (14), rear left pallet fork hydraulic motor (27), rear right fork hydraulic motor (28) The movement speed for controlling corresponding pallet fork is 0.3-0.35m/s.
- The vehicle hydraulic system 8. a kind of side fork act formula according to claim 1 is removed obstacles, it is characterised in that: described is preceding horizontal Door frame vertical shift hydraulic cylinder (20) control it is mobile when horizontal door frame assembly speed be 0.1-0.4m/s.
- The vehicle hydraulic system 9. a kind of side fork act formula according to claim 8 is removed obstacles, it is characterised in that: described is preceding horizontal Door frame vertical shift hydraulic cylinder (20) control it is mobile when horizontal door frame assembly speed be 0.15-0.2m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811176034.0A CN109236766B (en) | 2018-10-10 | 2018-10-10 | Hydraulic system of lateral fork lift type wrecker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811176034.0A CN109236766B (en) | 2018-10-10 | 2018-10-10 | Hydraulic system of lateral fork lift type wrecker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236766A true CN109236766A (en) | 2019-01-18 |
| CN109236766B CN109236766B (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811176034.0A Active CN109236766B (en) | 2018-10-10 | 2018-10-10 | Hydraulic system of lateral fork lift type wrecker |
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| CN (1) | CN109236766B (en) |
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| CN108071629A (en) * | 2017-12-14 | 2018-05-25 | 北京航天发射技术研究所 | A kind of double multi-stage oil cylinder synchronous lifting hydraulic systems |
| CN108298474A (en) * | 2017-12-26 | 2018-07-20 | 浙江大学 | A kind of fork truck energy saving system with speed-regulating function |
| CN108502816A (en) * | 2018-05-08 | 2018-09-07 | 安徽合力股份有限公司 | Bypass type energy regeneration forklift hydraulic system |
| CN108466983A (en) * | 2018-06-05 | 2018-08-31 | 安徽合力股份有限公司 | It is a kind of to decline the recyclable forklift hydraulic system of energy |
| CN208831355U (en) * | 2018-10-10 | 2019-05-07 | 湖北先行专用汽车有限公司 | A kind of side fork lifts formula and removes obstacles vehicle hydraulic system |
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