CN107878556A - A kind of fan blade transport vehicle electro-hydraulic steering control system and its control method - Google Patents
A kind of fan blade transport vehicle electro-hydraulic steering control system and its control method Download PDFInfo
- Publication number
- CN107878556A CN107878556A CN201711338260.XA CN201711338260A CN107878556A CN 107878556 A CN107878556 A CN 107878556A CN 201711338260 A CN201711338260 A CN 201711338260A CN 107878556 A CN107878556 A CN 107878556A
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- China
- Prior art keywords
- oil cylinder
- hydraulic
- fan blade
- steering
- transport vehicle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
- B62D5/32—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means for telemotor systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
A kind of fan blade transport vehicle electro-hydraulic steering control system, including left and right, two follow oil cylinder, left and right turn oil cylinder and operation valve, the pressure oil inlet that the operation valve is provided with hydraulic control mouth I, hydraulic control mouth II and hydraulic oil source connect, hydraulic control mouth I is connected by fluid pressure line I with the rodless cavity of left steering oil cylinder, and hydraulic control mouth II is connected by fluid pressure line II with the rodless cavity of right turn oil cylinder.The present invention realizes the course changing control function of overlength fan blade transport vehicle, the system operatio using flexible, safeguards that simply divertical motion process is steady；With with to two kinds of steering control modes of rotation work pattern and forced steering mode of operation, it is more beneficial for vehicle and realizes less radius of turn, improve bend handling capacity, meet overlength fan blade transport vehicle requirement.
Description
Technical field
The present invention relates to a kind of steering control system, particularly a kind of fan blade transport vehicle electro-hydraulic steering control system.
Background technology
With the appearance of national new energy policy, wind-power electricity generation builds just rapid popularization, the transport of fan blade used for wind power generation
Problems demand solves.Fan blade haulage vehicle aims at fan blade design of transportation, to meet large-scale fan blade movement requirement, Car design
Length is up to 50 meters, using 4 axis, 16 tires.This unconventional haulage vehicle, if only relying on tractor in itself, it can not meet
The requirement of existing road min. turning radius.
The content of the invention
The technical problem to be solved in the present invention is in view of the shortcomings of the prior art, to propose that one kind operates with flexible, maintenance
Simply, divertical motion process is steady, is advantageously implemented vehicle compared with tight turn radius, improves bend handling capacity, can meet overlength
The fan blade transport vehicle electro-hydraulic steering control system of fan blade transport vehicle requirement.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of electro-hydraulic steering of fan blade transport vehicle
Control system, it is characterized in：Including installed in fan blade transport vehicle front end follow the servo-actuated left and right rotated of traction revolving bed two with
With oil cylinder, correspond to control fan blade transport vehicle or so the left and right turn oil cylinder of rear-axle steering respectively and control left and right turn cylinder efficient
Operation valve, the operation valve is provided with the pressure oil inlet that hydraulic control mouth I, hydraulic control mouth II and hydraulic oil source connect, and hydraulic control mouth I passes through
Fluid pressure line I connects with the rodless cavity of left steering oil cylinder, and ball valve I is provided with fluid pressure line I, and hydraulic control mouth II passes through fluid pressure line
II connects with the rodless cavity of right turn oil cylinder, and ball valve II is provided with fluid pressure line II, fluid pressure line I and fluid pressure line II it
Between be communicated with the ball valve III of left and right turn oil cylinder rodless cavity；The left side follows the rodless cavity of oil cylinder to pass through fluid pressure line III and a left side
The rod chamber of steering cylinder connects, and the right side follows the rodless cavity of oil cylinder by the rod chamber phase of fluid pressure line IV and right turn oil cylinder
Connect, the ball valve IV that left and right follows oil cylinder rodless cavity is communicated between fluid pressure line III and fluid pressure line IV, in fluid pressure line
II is provided with the hydraulic branch communicated with fluid pressure line III, and ball valve V is provided with hydraulic branch；Its control method is：With to
Rotation work pattern, ball valve IV, V is closed, open ball valve I, II, III, now, a left side follows the rodless cavity and left steering oil of oil cylinder
The rod chamber of cylinder, the right side follow the rodless cavity of oil cylinder to form sealed volume respectively with the rod chamber of right turn oil cylinder, when tractor turns
Xiang Shi, left and right follow oil cylinder rodless cavity volume to change so as to drive corresponding left and right turn cylinder movement, and fan blade transport vehicle is just
Tractor follow-up steering can be followed under the driving of left and right turn oil cylinder；Forced steering mode of operation, ball valve III, V is closed, is beaten
Opening ball valve I, II, IV, because ball valve IV is opened, fluid pressure line III connects with fluid pressure line IV so that left and right follows the nothing of oil cylinder
Rod cavity communicates with the rod chamber of left and right turn oil cylinder, and feedback pressure, tractor can not be formed by following between oil cylinder and steering cylinder
Go to action and the steering transitive relation of fan blade transport vehicle be disconnected, now operating personnel can control left/right rotation by operation valve
To the stretching motion of oil cylinder, so as to drive fan blade transport vehicle axis to turn to, the forced steering of fan blade transport vehicle is realized.
The technical problem to be solved in the present invention can also be realized further by the following technical programs, in operation valve pressure
Hydraulic pump is installed on the connecting line that oil inlet connects with hydraulic oil source.
The technical problem to be solved in the present invention can also be realized further by the following technical programs, fuel-displaced in hydraulic pump
Overflow valve is installed on connecting line between mouth and operation valve pressure oil inlet.
The technical problem to be solved in the present invention can also be realized further by the following technical programs, and oil is followed in left and right
Safety valve is serially connected between the rodless cavity of cylinder and the rod chamber of left and right turn oil cylinder.
The technical problem to be solved in the present invention can also be realized further by the following technical programs, on hydraulic branch
Pressure gauge is installed.
The technical problem to be solved in the present invention can also be realized further by the following technical programs, pacify in operation valve
Equipped with can distance reception control signal signal receiver.
The technical problem to be solved in the present invention can also be realized further by the following technical programs, be gone back in operation valve
Provided with return line.
Compared with prior art, the present invention realizes the course changing control function of overlength fan blade transport vehicle, and the system operatio makes
With flexible, safeguard simple, divertical motion process is steady；With turning with to two kinds of rotation work pattern and forced steering mode of operation
To control model, it is more beneficial for vehicle and realizes less radius of turn, improve bend handling capacity, meets the transport of overlength fan blade
Car requirement.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
A kind of fan blade transport vehicle electro-hydraulic steering control system, including follow traction revolving bed installed in fan blade transport vehicle front end
The servo-actuated left and right two rotated follow oil cylinder 1,2, correspond to the left and right turn oil of control fan blade transport vehicle or so rear-axle steering respectively
Cylinder 8,7 and the operation valve 14 for controlling left and right turn cylinder efficient, the operation valve 14 are provided with hydraulic control mouth I, hydraulic control mouth II and hydraulic pressure
The pressure oil inlet that oil sources connects, hydraulic control mouth I are connected by fluid pressure line I with the rodless cavity of left steering oil cylinder 8, fluid pressure line I
On ball valve I 9 is installed, hydraulic control mouth II is connected with the rodless cavity of right turn oil cylinder 7 by fluid pressure line II, pacified on fluid pressure line II
Equipped with ball valve II 5, the ball valve III 6 of left and right turn oil cylinder rodless cavity is communicated between fluid pressure line I and fluid pressure line II；Institute
Stating a left side follows the rodless cavity of oil cylinder 1 to connect by fluid pressure line III with the rod chamber of left steering oil cylinder 8, and the right side follows the nothing of oil cylinder 2
Rod cavity is connected by fluid pressure line IV with the rod chamber of right turn oil cylinder 7, is provided between fluid pressure line III and fluid pressure line IV
Connection left and right follows the ball valve IV 4 of oil cylinder rodless cavity, and the hydraulic branch communicated with fluid pressure line III is provided with fluid pressure line II,
Ball valve V 15 is installed on hydraulic branch；Its control method is：With to rotation work pattern, ball valve IV, V is closed, opens ball
Valve I, II, III, now, a left side follow the rodless cavity of the oil cylinder and rod chamber of left steering oil cylinder, the right rodless cavity for the following oil cylinder and right side
The rod chamber of steering cylinder forms sealed volume respectively, and when tractor turns to, left and right follows oil cylinder rodless cavity volume to become
Change so as to drive corresponding left and right turn cylinder movement, fan blade transport vehicle will follow tractor under the driving of left and right turn oil cylinder
Follow-up steering；Forced steering mode of operation, ball valve III, V is closed, open ball valve I, II, IV, because ball valve IV is opened, hydraulic tube
Road III connects with fluid pressure line IV so that left and right follows the rodless cavity of oil cylinder to be communicated with the rod chamber of left and right turn oil cylinder, follows
Feedback pressure, the go to action of tractor and the steering transitive relation of fan blade transport vehicle can not be formed between oil cylinder and steering cylinder
It is disconnected, now operating personnel can control the stretching motion of left and right turn oil cylinder by operation valve, so as to drive fan blade transport vehicle
Axis turns to, and realizes the forced steering of fan blade transport vehicle.The hydraulic oil source is hydraulic oil container 13.The present invention is placed in fan blade transport
Inside vehicle carriage, the go to action of fan blade transport vehicle is controlled.Using the present invention, the turning function of fan blade transport vehicle can be made servo-actuated
Turn to and switch between forced steering both of which.Follow-up steering pattern, i.e. fan blade transport vehicle are can switch in normally travel certainly
It is dynamic to follow tractor to realize turning function；When running into that road curve radius is smaller, follow-up steering is poor by property, can switch to
Forced steering pattern, i.e. human users' control valve realize the independent forced steering of fan blade transport vehicle, and then improve the path link of vehicle
Cross ability.
The operation valve can be that system topping up also can control by operation valve using manual and electric two kinds of control modes
Hydraulic jack moves；It is described to follow oil cylinder to be arranged at fan blade transport vehicle traction revolving bed, followed and drawn back by pivoting support
Swivel base is servo-actuated, and can pass through the steering cylinder that steering control system passes to the steering angle signal of tractor fan blade transport vehicle,
Realize follow-up steering function during fan blade transport vehicle traveling；The ball valve is provided with 5 altogether, passes through 5 ball valve switch states
Switching, it is possible to achieve two kinds of work shapes of the follow-up steering pattern of fan blade transport vehicle electrohydraulic control system and artificial forced steering pattern
State；The steering cylinder is arranged at fan blade transport vehicle axis, receives the signal from electro-hydraulic steering control system, promotes fan blade
The steering of transport vehicle axis, under the control of electro-hydraulic steering control system, the two kinds of steerings of follow-up steering and forced steering can be achieved
Function；
Hydraulic pump 11 is installed on the connecting line that operation valve pressure oil inlet connects with hydraulic oil source.The hydraulic pump 11 is
The power source of electro-hydraulic steering control system, power source is provided for system.Hydraulic pump oil-out and operation valve pressure oil inlet it
Between connecting line on overflow valve 12 is installed.The overflow valve 12 is arranged on hydraulic pump oil-out and operation valve pressure oil inlet
Between, by the rated operating pressure of overflow valve initialization system, prevent Hydraulic Elements from overloading, the work of safeguard protection is played to system
With.Followed in left and right and be serially connected with safety valve 3 between the rodless cavity of oil cylinder and the rod chamber of left and right turn oil cylinder.The safety valve 3
It is serially connected in and follows between oil cylinder and steering cylinder, is the safety guard of electro-hydraulic steering control system, can prevent fan blade from transporting
When wheel tire steering frictional resistance is excessive, causes steering pressure too high, cause electro-hydraulic steering control system component damage.In liquid
Pressure gauge is installed on pressure branch road.The pressure gauge real-time display steering pressure, is easy to the event of electro-hydraulic steering control system
Barrier diagnosis and system maintenance.Be provided with operation valve can distance reception control signal signal receiver 10.The signal
The acceptable control signal sent from hand-held signal projector of receiver 10, operation is passed to by the control signal received
Valve, the commutation of control operation valve core, realize that long-distance remote control operates.Return line is additionally provided with operation valve.
When the uncoordinated phenomenon of turning function occurs in the follow-up steering pattern of tractor and fan blade transport vehicle, first with leading
Draw car traction fan blade transport vehicle keep straight on to tractor steering samsara just, be then shut off ball valve III, V, open ball valve I, II, IV
Forced steering pattern is switched to, adjust fan blade transporting vehicle axle line wheel tire using forced steering is in always with tractor tyre
Line.Now open ball valve IV, V, close ball valve I, II, III, manipulation operation valve be system topping up to pressure gauge reading be 20-
Between 50bar, last orderly close-down ball valve V, IV.After being operated more than completing, electro-hydraulic steering control system can be according to work
Need, realized by the switch motion of 5 ball valves and switched between two kinds of mode of operations of follow-up steering and forced steering.
Claims (7)
- A kind of 1. fan blade transport vehicle electro-hydraulic steering control system, it is characterised in that：Including being followed installed in fan blade transport vehicle front end The servo-actuated left and right two rotated of traction revolving bed follows oil cylinder, corresponds to the left and right of control fan blade transport vehicle or so rear-axle steering respectively The operation valve of steering cylinder and control left and right turn cylinder efficient, the operation valve are provided with hydraulic control mouth I, hydraulic control mouth II and hydraulic oil The pressure oil inlet that source connects, hydraulic control mouth I are connected with the rodless cavity of left steering oil cylinder by fluid pressure line I, pacified on fluid pressure line I Equipped with ball valve I, hydraulic control mouth II is connected by fluid pressure line II with the rodless cavity of right turn oil cylinder, and ball is provided with fluid pressure line II Valve II, the ball valve III of left and right turn oil cylinder rodless cavity is communicated between fluid pressure line I and fluid pressure line II；The left side follows The rodless cavity of oil cylinder is connected by fluid pressure line III with the rod chamber of left steering oil cylinder, and the right side follows the rodless cavity of oil cylinder to pass through hydraulic pressure Pipeline IV connects with the rod chamber of right turn oil cylinder, and left and right is communicated between fluid pressure line III and fluid pressure line IV and follows oil The ball valve IV of cylinder rodless cavity, the hydraulic branch communicated with fluid pressure line III is provided with fluid pressure line II, is pacified on hydraulic branch Equipped with ball valve V；Its control method is：With to rotation work pattern, ball valve IV, V is closed, opens ball valve I, II, III, now, a left side follows oil The rod chamber of the rodless cavity of cylinder and left steering oil cylinder, right the rodless cavity of oil cylinder is followed to be formed respectively with the rod chamber of right turn oil cylinder Sealed volume, when tractor turns to, left and right follows oil cylinder rodless cavity volume to change so as to drive corresponding left and right turn oil Cylinder moves, and fan blade transport vehicle will follow tractor follow-up steering under the driving of left and right turn oil cylinder；Forced steering Working mould Formula, ball valve III, V is closed, open ball valve I, II, IV, because ball valve IV is opened, fluid pressure line III connects with fluid pressure line IV, makes Obtaining left and right follows the rodless cavity of oil cylinder to be communicated with the rod chamber of left and right turn oil cylinder, and following can not shape between oil cylinder and steering cylinder Into feedback pressure, the go to action of tractor and the steering transitive relation of fan blade transport vehicle are disconnected, and now operating personnel can lead to The stretching motion of operation valve control left and right turn oil cylinder is crossed, so as to drive fan blade transport vehicle axis to turn to, realizes fan blade transport vehicle Forced steering.
- 2. fan blade transport vehicle electro-hydraulic steering control system according to claim 1, it is characterised in that：In operation valve pressure oil Hydraulic pump is installed on the connecting line that import connects with hydraulic oil source.
- 3. fan blade transport vehicle electro-hydraulic steering control system according to claim 2, it is characterised in that：In hydraulic pump oil-out Overflow valve is installed on connecting line between operation valve pressure oil inlet.
- 4. fan blade transport vehicle electro-hydraulic steering control system according to claim 1, it is characterised in that：Oil cylinder is followed in left and right Rodless cavity and left and right turn oil cylinder rod chamber between be serially connected with safety valve.
- 5. fan blade transport vehicle electro-hydraulic steering control system according to claim 1, it is characterised in that：Pacify on hydraulic branch Equipped with pressure gauge.
- 6. fan blade transport vehicle electro-hydraulic steering control system according to claim 1, it is characterised in that：Installed in operation valve Have can distance reception control signal signal receiver.
- 7. fan blade transport vehicle electro-hydraulic steering control system according to claim 1, it is characterised in that：Also set in operation valve There is return line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338260.XA CN107878556B (en) | 2017-12-14 | 2017-12-14 | Electrohydraulic steering control system of fan blade transport vehicle and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338260.XA CN107878556B (en) | 2017-12-14 | 2017-12-14 | Electrohydraulic steering control system of fan blade transport vehicle and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107878556A true CN107878556A (en) | 2018-04-06 |
| CN107878556B CN107878556B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711338260.XA Active CN107878556B (en) | 2017-12-14 | 2017-12-14 | Electrohydraulic steering control system of fan blade transport vehicle and control method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1120172A (en) * | 1965-09-13 | 1968-07-17 | Hans Still G M B H | Servo-assisted hydraulic steering system for a battery operated vehicle |
| DE19850902A1 (en) * | 1998-11-05 | 1999-06-24 | Manfred Scherger Baumaschinen | Rotary tower crane e.g. for building site |
| CN2412810Y (en) * | 2000-02-14 | 2001-01-03 | 李鹏海 | High-power tractor |
| US20070017712A1 (en) * | 2005-07-21 | 2007-01-25 | Dunn James T | Tractor with hydraulic speed and steering control for steering at maximum speed |
| CN101737365A (en) * | 2009-12-17 | 2010-06-16 | 长沙中联重工科技发展股份有限公司 | Mobile crane, steering mid positioning and locking device and mid cylinder thereof |
| CN105216865A (en) * | 2015-08-21 | 2016-01-06 | 王宁 | One connects steering hardware based on highway mine car |
-
2017
- 2017-12-14 CN CN201711338260.XA patent/CN107878556B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1120172A (en) * | 1965-09-13 | 1968-07-17 | Hans Still G M B H | Servo-assisted hydraulic steering system for a battery operated vehicle |
| DE19850902A1 (en) * | 1998-11-05 | 1999-06-24 | Manfred Scherger Baumaschinen | Rotary tower crane e.g. for building site |
| CN2412810Y (en) * | 2000-02-14 | 2001-01-03 | 李鹏海 | High-power tractor |
| US20070017712A1 (en) * | 2005-07-21 | 2007-01-25 | Dunn James T | Tractor with hydraulic speed and steering control for steering at maximum speed |
| CN101737365A (en) * | 2009-12-17 | 2010-06-16 | 长沙中联重工科技发展股份有限公司 | Mobile crane, steering mid positioning and locking device and mid cylinder thereof |
| CN105216865A (en) * | 2015-08-21 | 2016-01-06 | 王宁 | One connects steering hardware based on highway mine car |
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| Publication number | Publication date |
|---|---|
| CN107878556B (en) | 2023-09-08 |
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