CN107264618A - A kind of hydraulic system of special trailer - Google Patents
A kind of hydraulic system of special trailer Download PDFInfo
- Publication number
- CN107264618A CN107264618A CN201710431498.0A CN201710431498A CN107264618A CN 107264618 A CN107264618 A CN 107264618A CN 201710431498 A CN201710431498 A CN 201710431498A CN 107264618 A CN107264618 A CN 107264618A
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- China
- Prior art keywords
- oil
- valve
- tetrad
- steering cylinder
- jacking
- Prior art date
- 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
- B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of fluid dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/413—Hydraulic actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/04—Trailers
- B60G2300/042—Semi-trailers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic system of special trailer, including：Powerplant module, tetrad banked direction control valves, steering hydraulic system and jacking hydraulic system；The oil-out of powerplant module is connected with the oil inlet of tetrad banked direction control valves, and the oil-out of tetrad banked direction control valves first is connected with the oil inlet of switching valve block, and the oil-out of switching valve block is connected with gooseneck steering cylinder and axis vehicle steering cylinder respectively；By operating tetrad banked direction control valves to carry out trailer hydraulic pressure active steering, so as to realize the min. turning radius of trailer；The oil-out that tetrad banked direction control valves second is coupled to tetrad is connected with the oil inlet of jacking valve block, and the oil-out of jacking valve block is connected with the oil inlet of all two-way anti-explosion valves, and the oil-out of two-way anti-explosion valve is connected with corresponding jacking cylinder；By operating tetrad banked direction control valves, the lifting of trailer is realized, that improves vehicle passes through property.
Description
Technical field
The present invention relates to a kind of hydraulic system, more particularly to a kind of hydraulic system of special trailer.
Background technology
At this stage, most of trailer all uses full-bridge mode, and damping, this structure type are carried out using BF
Trailer can only lean on tractor tractive force carry out forced steering；Vehicle radius of turn is big, serious to tire wear, and can not lead to
Cross vehicle frame lifting come improve vehicle by property.
The content of the invention
Weak point present in regarding to the issue above, the present invention provides a kind of hydraulic system of special trailer, the hydraulic pressure
Min. turning radius can be achieved by hydraulic pressure active steering in system；By the lifting of hydraulic control vehicle frame, passing through for vehicle is improved
Property.
To achieve the above object, the present invention provides a kind of hydraulic system of special trailer, including：Powerplant module, tetrad are more
Road valve, steering hydraulic system and jacking hydraulic system；
The oil-out of the powerplant module is connected with the oil inlet of the tetrad banked direction control valves；
The steering hydraulic system includes：Switching valve block, gooseneck steering cylinder and axis vehicle steering cylinder, the tetrad are more
The oil-out of road valve first is connected with the oil inlet of the switching valve block, the oil-out of the switching valve block respectively with the goose
Neck steering cylinder is connected with axis vehicle steering cylinder；By operating the tetrad banked direction control valves, the active steering of trailer is realized；
The jacking hydraulic system includes：One is carried on jacking valve block and multiple jacking cylinders, each jacking cylinder
Two-way anti-explosion valve；The tetrad banked direction control valves second is coupled to oil inlet of the oil-out of tetrad with the jacking valve block and is connected,
The oil-out of the jacking valve block is connected with the oil inlet of all two-way anti-explosion valves, the oil-out of the two-way anti-explosion valve with
Corresponding jacking cylinder is connected；By operating the tetrad banked direction control valves, the lifting of trailer is realized.
As a further improvement on the present invention, the oil return opening of the oil return opening of the tetrad banked direction control valves and the switching valve block is simultaneously
Oil return opening after connection with the powerplant module is connected.
As a further improvement on the present invention, the powerplant module includes：Filter, engine and hydraulic pump；
The filter, for being filtered to the hydraulic oil for entering hydraulic system；
The engine, for providing power for whole hydraulic system；
The hydraulic pump, for mechanical energy to be converted into system interior energy.
As a further improvement on the present invention, the gooseneck steering cylinder includes left gooseneck steering cylinder and right gooseneck is turned to
Oil cylinder, the axis vehicle steering cylinder includes left axis vehicle steering cylinder and right axis vehicle steering cylinder；
With the switching valve block after the small chamber of the left gooseneck steering cylinder is in parallel with the big chamber of left axis vehicle steering cylinder
The first oil-out be connected, after the big chamber of the left gooseneck steering cylinder is in parallel with the small chamber of left axis vehicle steering cylinder with it is described
Second oil-out of switching valve block is connected, and the small chamber of the right gooseneck steering cylinder is in parallel with the big chamber of right axis vehicle steering cylinder
The 3rd oil-out with the switching valve block is connected afterwards, big chamber and the right axis vehicle steering cylinder of the right gooseneck steering cylinder
It is connected after small chamber is in parallel with the 4th oil-out of the switching valve block.
As a further improvement on the present invention, the switching valve block includes：Four two-way counterbalance valves, two bidirectional hydraulics
Lock, two bidirectional relief valves, four check valves, one-way overflow valve and ball valve；
The two-way counterbalance valve is engaged with the bidirectional hydraulic lock, for keeping gooseneck steering cylinder and axis vehicle to turn to
In-oil cylinder pressure；
The bidirectional relief valve, for protecting gooseneck steering cylinder and axis vehicle steering cylinder no more than setting pressure；
The check valve is engaged with the one-way overflow valve, for ensureing when temperature drastically changes, steering hydraulic system
System will not superpressure；
The ball valve, for the pressure in maintenance in removal gooseneck steering cylinder and axis vehicle steering cylinder.
As a further improvement on the present invention：
The oil inlet of two bidirectional hydraulic locks is as the oil inlet of the switching valve block, and the bidirectional hydraulic lock goes out
Hydraulic fluid port is connected with the oil inlet of the corresponding two-way counterbalance valve, and the oil-out of four two-way counterbalance valves is turned to as described
Four oil-outs of valve block；
It is connected after two bidirectional relief valves and four check valves are in parallel with the oil-out of the two-way counterbalance valve,
Be connected after the oil-out of four check valves is in parallel with the oil inlet of the one-way overflow valve, the one-way overflow valve it is fuel-displaced
Mouthful as the switching valve block oil return opening；The oil inlet of the ball valve, the oil-feed of oil-out respectively with the one-way overflow valve
Mouth, oil-out are in parallel.
As a further improvement on the present invention, the hydraulic system is applied to five bridge trailers, and all jacking cylinders are formed
Supported at three point；Wherein, the jacking cylinder of the first bridge on the left of trailer, the second bridge, the 3rd bridge is as first strong point, the on the right side of trailer
One bridge, the second bridge, the jacking cylinder of the 3rd bridge are as second strong point, and the bridge of trailer afterbody the 4th, the jacking cylinder of the 5th bridge are made
For the 3rd strong point.
As a further improvement on the present invention, in addition to：Three ball valves；
Three ball valve is arranged on the oil circuit between the jacking valve block and the two-way anti-explosion valve, for controlling
State the break-make of oil circuit between jacking valve block and two-way anti-explosion valve.
As a further improvement on the present invention, the jacking valve block includes：Three external control balanced valves and three unidirectional speed governing
Valve；
The external control balanced valve, for keeping the pressure in jacking cylinder when not operating, limitation in operation is pushed up
The maximum pressure of oil-lifting jar, protection element；
The one-way speed-regulating valve, for ensureing that it is too fast that vehicle frame will not decline in decline because of deadweight.
As a further improvement on the present invention：
One oil-out of the tetrad banked direction control valves second, first one-way speed-regulating valve, first external control balanced valve and three
The oil inlet of connection ball valve first is in series, with described three after the oil inlet of the two-way anti-explosion valve of second strong point is in parallel
The oil-out of ball valve first is connected；The control of another oil-out and first external control balanced valve of the tetrad banked direction control valves second
Donsole is connected；
One oil-out of the tetrad banked direction control valves the 3rd, second one-way speed-regulating valve, second external control balanced valve and three
The oil inlet of connection ball valve second is in series, with described three after the oil inlet of the two-way anti-explosion valve of first strong point is in parallel
The oil-out of ball valve second is connected；The control of another oil-out and second external control balanced valve of the tetrad banked direction control valves the 3rd
Donsole is connected；
One oil-out of the tetrad banked direction control valves tetrad, the 3rd one-way speed-regulating valve, the 3rd external control balanced valve and three
The oil inlet of connection ball valve the 3rd is in series, with described three after the oil inlet of the two-way anti-explosion valve of the 3rd strong point is in parallel
The oil-out of ball valve the 3rd is connected；The control of another oil-out and the 3rd external control balanced valve of the tetrad banked direction control valves tetrad
Donsole is connected.
Compared with prior art, beneficial effects of the present invention are：
The present invention provides a kind of hydraulic system of special trailer, operates the first of tetrad banked direction control valves, can pass through gooseneck and turn
The hydraulic pressure active steering of trailer is realized to oil cylinder and axis vehicle steering cylinder, so as to realize the min. turning radius of trailer；Operation
The second of tetrad banked direction control valves is coupled to tetrad, and the lifting of vehicle can be realized by jacking cylinder, be easy to large cargo handling and
Transport, improve vehicle passes through performance.
Brief description of the drawings
Fig. 1 is the pneumatic diagram of the hydraulic system of special trailer disclosed in an embodiment of the present invention.
In figure：
10th, powerplant module；11st, filter；12nd, engine；13rd, hydraulic pump；20th, tetrad banked direction control valves；30th, switching valve block；
31st, two-way counterbalance valve；32nd, bidirectional hydraulic lock；33rd, bidirectional relief valve；34th, check valve；35th, one-way overflow valve；36th, ball valve；40、
Gooseneck steering cylinder；50th, axis vehicle steering cylinder；60th, jacking valve block；61st, external control balanced valve；62nd, one-way speed-regulating valve；70th, three
Join ball valve；80th, two-way anti-explosion valve；90th, jacking cylinder.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
The present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, the present invention provides a kind of hydraulic system of special trailer, the hydraulic system includes：Filter 11, hair
Motivation 12, hydraulic pump 13, tetrad banked direction control valves 20, switching valve block 30, gooseneck steering cylinder 40, axis vehicle steering cylinder 50, jacking
Pipe joint necessary to valve block 60, three ball valves 70, two-way anti-explosion valve 80, jacking cylinder 90 and other hydraulic systems, steel pipe and
Flexible pipe；Said elements constitute powerplant module 10, steering hydraulic system and the jacking hydraulic system of the hydraulic system of special trailer.
The powerplant module 10 of the present invention includes：Filter 11, engine 12 and hydraulic pump 13, filter 11 are used for from oil
The hydraulic oil that case enters whole hydraulic system is filtered, and engine 12 is used to provide power, hydraulic pump for whole hydraulic system
13 are used to mechanical energy being converted into system interior energy；The oil-out of hydraulic pump 13 is used as the oil-out of powerplant module 10, hydraulic pump 13
Oil-out be connected with the oil inlet of tetrad banked direction control valves 20, the oil return opening of tetrad banked direction control valves 20 and the oil return opening of powerplant module 10
It is connected, i.e.,：In the oil return opening access fuel tank of tetrad banked direction control valves 20.
The steering hydraulic system of the present invention includes：Switching valve block 30, gooseneck steering cylinder 40 and axis vehicle steering cylinder 50,
The oil-out (A1, B1 mouthfuls) of tetrad banked direction control valves 20 first is connected with the oil inlet (P1, P2 mouthfuls) of switching valve block 30, switching valve block
30 oil-out respectively enters the big chamber and small chamber of the big chamber and small chamber of gooseneck steering cylinder 40, axis vehicle steering cylinder 50, turns
The oil return opening of powerplant module 10 is connected after in parallel to the oil return opening of valve block 30 and the oil return opening of tetrad banked direction control valves 20；In use, logical
The first of operation tetrad banked direction control valves 20 is crossed, control gooseneck steering cylinder 40 and axis vehicle steering cylinder 50 realize the hydraulic pressure of trailer
Active steering.Wherein：The gooseneck steering cylinder 40 of the present invention includes left gooseneck steering cylinder and right gooseneck steering cylinder, axis vehicle
Steering cylinder 50 includes left axis vehicle steering cylinder and right axis vehicle steering cylinder；The small chamber of left gooseneck steering cylinder and left axle line
It is connected after the big chamber of car steering cylinder is in parallel with the first oil-out of switching valve block 30, the big chamber and left axle of left gooseneck steering cylinder
It is connected after the small chamber of line car steering cylinder is in parallel with the second oil-out of switching valve block 30, small chamber and the right side of right gooseneck steering cylinder
Be connected after the big chamber of axis vehicle steering cylinder is in parallel with the 3rd oil-out of switching valve block 30, the big chamber of right gooseneck steering cylinder and
It is connected after the small chamber of right axis vehicle steering cylinder is in parallel with the 4th oil-out of switching valve block 30, as shown in Figure 1.
Further, switching valve block 30 of the invention includes：Four two-way counterbalance valves 31, two bidirectional hydraulic locks 32, two
Individual bidirectional relief valve 33, four check valves 34, one-way overflow valve 35 and ball valve 36, it is integrated in the inside of switching valve block 30.
Wherein：Two-way counterbalance valve 31 is used in combination with bidirectional hydraulic lock 32, for keeping gooseneck steering cylinder 40 and axis vehicle to turn to
Pressure in oil cylinder 50；Bidirectional relief valve 33 is used to protect gooseneck steering cylinder 40 and axis vehicle steering cylinder 50 no more than setting
Pressure, check valve 34 is used in combination with one-way overflow valve 35, for ensureing that steering hydraulic system is not when temperature drastically changes
Can superpressure；Ball valve 36 is used in the pressure when oil cylinder is repaired in removal gooseneck steering cylinder 40 and axis vehicle steering cylinder 50.
The internal oil passages annexation of switching valve block 30 of the present invention is：The oil inlet of two bidirectional hydraulic locks 32 is used as switching valve
The oil inlet of block 30, the oil-out of bidirectional hydraulic lock 32 is connected with the oil inlet of corresponding two-way counterbalance valve 31, four two-way back ofs the body
The oil-out of pressure valve 31 as switching valve block 30 four oil-outs；After two bidirectional relief valves 33 and four parallel connections of check valve 34
It is connected with the oil-out of two-way counterbalance valve 31, the oil inlet phase after the oil-out of four check valves 34 is in parallel with one-way overflow valve 35
Even, the oil-out of one-way overflow valve 35 as switching valve block 30 oil return opening；The oil inlet of ball valve 36, oil-out respectively with unidirectionally
Oil inlet, the oil-out of overflow valve 35 are in parallel.
The steering hydraulic system of the present invention is turned to by tractor drives two gooseneck steering cylinders 40 to be stretched, gooseneck
The hydraulic oil of the flexible extrusion of steering cylinder 40 enters the axis vehicle steering cylinder 50 of trailer, makes the axis vehicle steering cylinder 50 of trailer
It is flexible, steering mechanism of trailer action is driven, the change of trailer suspension corner is realized；Meanwhile, the axis vehicle steering cylinder 50 of trailer
The hydraulic oil of extrusion is needed in the gooseneck steering cylinder 40 of oil suction into gooseneck again, forms the loop checking installation of a closing；Ensure
Tractor, the corner of gooseneck are identical with the corner of steering mechanism of trailer, form eight word steering patterns, realize that trailer minimum is turned partly
Footpath.
The jacking hydraulic system of the present invention includes：Jacking valve block 60, three ball valves 70 and multiple jacking cylinders 90, Mei Geding
Board-like two-way anti-explosion valve 80 is carried on oil-lifting jar 90；Tetrad banked direction control valves 20 second is coupled to the oil-out of tetrad and jacking
The oil inlet of valve block 60 is connected, the oil-out of jacking valve block 60 is connected with the oil inlet of three ball valves 70, and three ball valves 70 go out
Hydraulic fluid port is connected with the oil inlet of all two-way anti-explosion valves 80, the oil-out of two-way anti-explosion valve 80 and the corresponding phase of jacking cylinder 90
Even, three ball valves 70 are used for the break-make for controlling oil circuit between jacking valve block and two-way anti-explosion valve, state the effect of two-way anti-explosion valve 80
It is that in the process of moving after explosion occurs in the flexible pipe of oil cylinder, two-way anti-explosion valve automatically will close this road, keeps oil cylinder internal pressure
Power, it is ensured that vehicle remains to normal work；In use, controlling jacking cylinder by operating the second of tetrad banked direction control valves to be coupled to tetrad
90 realize the lifting of vehicle, are easy to the handling and transport of large cargo, and that improves vehicle passes through performance.
The jacking hydraulic system of the present invention is applied to five bridge trailers, coordinates be provided with 10 supporting suspensions and 10 jacking oil altogether
90,10 formation supported at three points of jacking cylinder 90 of cylinder；Wherein, the first bridge, the second bridge, the jacking cylinder of the 3rd bridge are made on the left of trailer
For first strong point, the first bridge on the right side of trailer, the second bridge, the jacking cylinder of the 3rd bridge are as second strong point, trailer afterbody the
Four bridges, the jacking cylinder of the 5th bridge are used as the 3rd strong point.
Further, jacking valve block 60 of the invention includes：Three external control balanced valves 61 and three one-way speed-regulating valves 62, three
Individual external control balanced valve 61 and three one-way speed-regulating valves 62 are integrated in inside jacking valve block 60.Wherein：External control balanced valve 61 is used for
The pressure in jacking cylinder is kept when not operating, the maximum pressure of jacking cylinder, protection element are limited in operation；Unidirectionally
Flow speed control valve 62 is for ensureing that it is too fast that vehicle frame will not decline in decline because of deadweight.
As shown in figure 1, the specific annexation of each oil circuit is in the jacking hydraulic system of the present invention：
An oil-out (B2) for tetrad banked direction control valves 20 second, first one-way speed-regulating valve 62, first external control balanced valve
61 and three the oil inlet of ball valve 70 first be in series, after the oil inlet of all two-way anti-explosion valves 80 of second strong point is in parallel
It is connected with the oil-out of three ball valves 70 first；Another oil-out (A2) of tetrad banked direction control valves 20 second and first external control
The control mouth of balanced valve 61 is connected；In use, by operating the second of tetrad banked direction control valves 20, realizing the strong point of vehicle frame second
Lifting；
An oil-out (B3) for tetrad banked direction control valves 20 the 3rd, second one-way speed-regulating valve 62, second external control balanced valve
61 and three the oil inlet of ball valve 70 second be in series, after the oil inlet of all two-way anti-explosion valves 80 of first strong point is in parallel
It is connected with the oil-out of three ball valves 70 second；Another oil-out (A3) of tetrad banked direction control valves 20 the 3rd and second external control
The control mouth of balanced valve 61 is connected；In use, by operating the 3rd of tetrad banked direction control valves 20, realizing the strong point of vehicle frame first
Lifting；
An oil-out (B4) for the tetrad of tetrad banked direction control valves 20, the 3rd one-way speed-regulating valve 62, the 3rd external control balanced valve
61 and three the oil inlet of ball valve 70 the 3rd be in series, after the oil inlet of all two-way anti-explosion valves 80 of the 3rd strong point is in parallel
It is connected with the oil-out of three ball valves 70 the 3rd；Another oil-out (A4) of the tetrad of tetrad banked direction control valves 20 and the 3rd external control
The control mouth of balanced valve 61 is connected；In use, the tetrad by operating tetrad banked direction control valves 20, realizes the strong point of vehicle frame the 3rd
Lifting.
The present invention provides a kind of hydraulic system of special trailer, and the system uses hydraulic suspension and hydraulic pressure active steering.Liquid
Pressure suspension uses half-bridge form, by controlling the jacking cylinder in suspension to realize the lifting of vehicle, is easy to large cargo
Handling and transport, that improves vehicle passes through performance.Traditional semitrailer generally uses the full-bridge suspension of leaf spring form, and trailer is only
Forced steering can be realized by the traction of headstock；Because the trailer hydraulic suspension gear changing group uses half-bridge mode, therefore can be using company
Bar steering mechanism, trailer wheels active steering function is realized by the gearing of tractor saddle, it is ensured that tractor and trailer
Whole wheels are same turning center, realize min. turning radius.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of hydraulic system of special trailer, it is characterised in that including：Powerplant module, tetrad banked direction control valves, steering hydraulic system
And jacking hydraulic system；
The oil-out of the powerplant module is connected with the oil inlet of the tetrad banked direction control valves；
The steering hydraulic system includes：Switching valve block, gooseneck steering cylinder and axis vehicle steering cylinder, the tetrad banked direction control valves
First oil-out is connected with the oil inlet of the switching valve block, and the oil-out of the switching valve block turns with the gooseneck respectively
It is connected to oil cylinder with axis vehicle steering cylinder；By operating the tetrad banked direction control valves, the active steering of trailer is realized；
The jacking hydraulic system includes：It is two-way with one on jacking valve block and multiple jacking cylinders, each jacking cylinder
Explosion-proof valve；The tetrad banked direction control valves second is coupled to oil inlet of the oil-out of tetrad with the jacking valve block and is connected, described
The oil-out of jacking valve block is connected with the oil inlet of all two-way anti-explosion valves, the oil-out of the two-way anti-explosion valve with it is corresponding
Jacking cylinder be connected；By operating the tetrad banked direction control valves, the lifting of trailer is realized.
2. the hydraulic system of special trailer as claimed in claim 1, it is characterised in that the oil return opening of the tetrad banked direction control valves with
It is connected after the oil return opening of the switching valve block is in parallel with the oil return opening of the powerplant module.
3. the hydraulic system of special trailer as claimed in claim 1, it is characterised in that the powerplant module includes：Filter,
Engine and hydraulic pump；
The filter, for being filtered to the hydraulic oil for entering hydraulic system；
The engine, for providing power for whole hydraulic system；
The hydraulic pump, for mechanical energy to be converted into system interior energy.
4. the hydraulic system of special trailer as claimed in claim 1, it is characterised in that the gooseneck steering cylinder includes left goose
Neck steering cylinder and right gooseneck steering cylinder, the axis vehicle steering cylinder includes left axis vehicle steering cylinder and right axis vehicle turns
To oil cylinder；
With the of the switching valve block after the small chamber of the left gooseneck steering cylinder is in parallel with the big chamber of left axis vehicle steering cylinder
One oil-out is connected, and is turned to after the big chamber of the left gooseneck steering cylinder is in parallel with the small chamber of left axis vehicle steering cylinder with described
Second oil-out of valve block is connected, after the small chamber of the right gooseneck steering cylinder is in parallel with the big chamber of right axis vehicle steering cylinder and
3rd oil-out of the switching valve block is connected, the big chamber of the right gooseneck steering cylinder and the small chamber of right axis vehicle steering cylinder
The 4th oil-out after parallel connection with the switching valve block is connected.
5. the hydraulic system of special trailer as claimed in claim 4, it is characterised in that the switching valve block includes：Four double
To counterbalance valve, two bidirectional hydraulic locks, two bidirectional relief valves, four check valves, one-way overflow valve and ball valve；
The two-way counterbalance valve is engaged with the bidirectional hydraulic lock, for keeping gooseneck steering cylinder and axis vehicle steering cylinder
Interior pressure；
The bidirectional relief valve, for protecting gooseneck steering cylinder and axis vehicle steering cylinder no more than setting pressure；
The check valve is engaged with the one-way overflow valve, for ensureing that steering hydraulic system is not when temperature drastically changes
Can superpressure；
The ball valve, for the pressure in maintenance in removal gooseneck steering cylinder and axis vehicle steering cylinder.
6. the hydraulic system of special trailer as claimed in claim 5, it is characterised in that：
The oil inlet of two bidirectional hydraulic locks is used as the oil inlet of the switching valve block, the oil-out of the bidirectional hydraulic lock
It is connected with the oil inlet of the corresponding two-way counterbalance valve, the oil-out of four two-way counterbalance valves is used as the switching valve block
Four oil-outs；
It is connected after two bidirectional relief valves and four check valves are in parallel with the oil-out of the two-way counterbalance valve, four
It is connected after the oil-out of the check valve is in parallel with the oil inlet of the one-way overflow valve, the oil-out of the one-way overflow valve is made
For the oil return opening of the switching valve block；The oil inlet of the ball valve, oil-out oil inlet respectively with the one-way overflow valve, go out
Hydraulic fluid port is in parallel.
7. the hydraulic system of special trailer as claimed in claim 1, it is characterised in that the hydraulic system is hung suitable for five bridges
Car, all jacking cylinder formation supported at three points；Wherein, the first bridge, the second bridge, the jacking cylinder of the 3rd bridge are made on the left of trailer
For first strong point, the first bridge on the right side of trailer, the second bridge, the jacking cylinder of the 3rd bridge are as second strong point, trailer afterbody the
Four bridges, the jacking cylinder of the 5th bridge are used as the 3rd strong point.
8. the hydraulic system of special trailer as claimed in claim 7, it is characterised in that also include：Three ball valves；
Three ball valve is arranged on the oil circuit between the jacking valve block and the two-way anti-explosion valve, for controlling the top
The break-make of oil circuit between lift valve block and two-way anti-explosion valve.
9. the hydraulic system of special trailer as claimed in claim 8, it is characterised in that the jacking valve block includes：Three outer
Control balanced valve and three one-way speed-regulating valves；
The external control balanced valve, for keeping the pressure in jacking cylinder when not operating, limits jacking oil in operation
The maximum pressure of cylinder, protection element；
The one-way speed-regulating valve, for ensureing that it is too fast that vehicle frame will not decline in decline because of deadweight.
10. the hydraulic system of special trailer as claimed in claim 9, it is characterised in that：
One oil-out of the tetrad banked direction control valves second, first one-way speed-regulating valve, first external control balanced valve and three balls
The oil inlet of valve first is in series, with three ball valve after the oil inlet of the two-way anti-explosion valve of second strong point is in parallel
First oil-out is connected；Another oil-out of the tetrad banked direction control valves second and the control mouth of first external control balanced valve
It is connected；
One oil-out of the tetrad banked direction control valves the 3rd, second one-way speed-regulating valve, second external control balanced valve and three balls
The oil inlet of valve second is in series, with three ball valve after the oil inlet of the two-way anti-explosion valve of first strong point is in parallel
Second oil-out is connected；Another oil-out of the tetrad banked direction control valves the 3rd and the control mouth of second external control balanced valve
It is connected；
One oil-out of the tetrad banked direction control valves tetrad, the 3rd one-way speed-regulating valve, the 3rd external control balanced valve and three balls
The oil inlet of valve the 3rd is in series, with three ball valve after the oil inlet of the two-way anti-explosion valve of the 3rd strong point is in parallel
3rd oil-out is connected；Another oil-out of the tetrad banked direction control valves tetrad and the control mouth of the 3rd external control balanced valve
It is connected.
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| CN201710431498.0A CN107264618B (en) | 2017-06-09 | 2017-06-09 | A kind of hydraulic system of special trailer |
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| CN201710431498.0A CN107264618B (en) | 2017-06-09 | 2017-06-09 | A kind of hydraulic system of special trailer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591143A (en) * | 2018-06-09 | 2018-09-28 | 湖北脉辉金茂机械有限公司 | Oil circuit concealed electric floor truck |
| CN109189076A (en) * | 2018-10-24 | 2019-01-11 | 湖北三江航天万山特种车辆有限公司 | A kind of heavy guiding vehicle localization method and heavy guiding vehicle of view-based access control model sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828882A (en) * | 1973-08-24 | 1974-08-13 | Gen Motors Corp | Steering mechanism for articulated vehicle |
| CN201494273U (en) * | 2009-09-07 | 2010-06-02 | 湖北三江航天万山特种车辆有限公司 | Oil gas suspension system of hydraulic trailer |
| CN203637648U (en) * | 2013-12-17 | 2014-06-11 | 大连浦州航空科技有限公司 | Hydraulic working system of trailer |
| CN105539576A (en) * | 2015-12-25 | 2016-05-04 | 湖北三江航天万山特种车辆有限公司 | Hydraulic steering system of semitrailer |
| CN106168236A (en) * | 2016-08-31 | 2016-11-30 | 湖北三江航天万山特种车辆有限公司 | The loading of a kind of semitrailer promotes hydraulic system |
-
2017
- 2017-06-09 CN CN201710431498.0A patent/CN107264618B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828882A (en) * | 1973-08-24 | 1974-08-13 | Gen Motors Corp | Steering mechanism for articulated vehicle |
| CN201494273U (en) * | 2009-09-07 | 2010-06-02 | 湖北三江航天万山特种车辆有限公司 | Oil gas suspension system of hydraulic trailer |
| CN203637648U (en) * | 2013-12-17 | 2014-06-11 | 大连浦州航空科技有限公司 | Hydraulic working system of trailer |
| CN105539576A (en) * | 2015-12-25 | 2016-05-04 | 湖北三江航天万山特种车辆有限公司 | Hydraulic steering system of semitrailer |
| CN106168236A (en) * | 2016-08-31 | 2016-11-30 | 湖北三江航天万山特种车辆有限公司 | The loading of a kind of semitrailer promotes hydraulic system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591143A (en) * | 2018-06-09 | 2018-09-28 | 湖北脉辉金茂机械有限公司 | Oil circuit concealed electric floor truck |
| CN108591143B (en) * | 2018-06-09 | 2023-09-22 | 湖北脉辉金茂机械有限公司 | Electric carrying trolley with concealed oil circuit |
| CN109189076A (en) * | 2018-10-24 | 2019-01-11 | 湖北三江航天万山特种车辆有限公司 | A kind of heavy guiding vehicle localization method and heavy guiding vehicle of view-based access control model sensor |
| CN109189076B (en) * | 2018-10-24 | 2021-08-31 | 湖北三江航天万山特种车辆有限公司 | Heavy guided vehicle positioning method based on visual sensor and heavy guided vehicle |
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