CN109131550A - A kind of adjustable Flow amplification hydraulic steering gear of discharge capacity - Google Patents
A kind of adjustable Flow amplification hydraulic steering gear of discharge capacity Download PDFInfo
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- CN109131550A CN109131550A CN201811030990.8A CN201811030990A CN109131550A CN 109131550 A CN109131550 A CN 109131550A CN 201811030990 A CN201811030990 A CN 201811030990A CN 109131550 A CN109131550 A CN 109131550A
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- valve
- spool
- oil
- annular groove
- spring
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- 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
- B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
- B62D5/083—Rotary valves
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- 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
- B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
- B62D5/083—Rotary valves
- B62D5/0832—Rotary valves with elastic means other than a torsion bar, e.g. leaf springs
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity, including shell, spool, valve pocket and flow compensation valve, oil return opening, oil inlet, right turn hydraulic fluid port and left steering hydraulic fluid port are offered above the shell；When when the spring ratio for monitoring the spring reduces, at this time by the inside spiral shell of the adjusting nut into, the adjusting nut drives the spring to move right at this time, to increase the elastic force of the spring, when the spring ratio of the spring reduces to a certain extent, the outside spiral shell of the adjusting nut is gone out at this time, then the old spring is taken out, the spring more renewed, so that the flow compensation valve can run well, compared to more existing hydraulic steering gear, while the adjustable Flow amplification hydraulic steering gear of novel discharge capacity can be realized stable turning, it can be in the spring in fatigue, so that the flow compensation valve works normally, the simpler convenience when replacing the spring.
Description
Technical field
The invention belongs to diverter technical field more particularly to a kind of adjustable Flow amplification hydraulic steering gears of discharge capacity.
Background technique
Firstly, the amplification factor of existing Flow amplification hydraulic steering gear be it is fixed, displacement size is uncontrollable.Often
The diverter seen is the P mouthfuls of (oil inlets of oil liquid diverter with coaxial flow amplification principle (patent No. ZL00247499.9), principle
Mouthful), it is divided into two-way through valve pocket, as steering wheel rotates, oil liquid is all the way through the oil-feed tank on spool through matching on valve pocket and shell
Oilhole to turning stator pair, oil liquid measured by turning stator after through the steering oil inlet on the distributor port to spool on shell and valve pocket
Slot.Amplification slot in enlarged opening to spool of the oil liquid another way through the fixed size on valve pocket directly arrives and turns to oil-feed tank, and another
Oil liquid merges through the steering fuel feed hole on valve pocket all the way, turns to hydraulic fluid port by the left side (or right) on shell and reaches steering cylinder, pushes away
Dynamic deflecting roller realizes (or right-hand rotation).Since the size in the Flow amplification hole on its valve pocket and the Flow amplification slot on spool is
Fixed, therefore its amplification factor is also fixed and invariable, and cannot achieve the on-demand adjusting of diverter displacement size.
Existing Flow amplification diverter by increase flow compensation valve make turn to when it is more stable, it is flow-compensated
Valve is internally provided with spring, and after spring is run multiple times, spring generates fatigue, and the spring ratio of spring reduces, thus shadow
Ring compensation effect.
Summary of the invention
The present invention provides a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity, it is intended to solve existing Flow amplification and turn to
Device by increase flow compensation valve make turn to when it is more stable, flow compensation valve is internally provided with spring, in spring
After being run multiple times, spring generates fatigue, and the spring ratio of spring reduces, thus the problem of influencing compensation effect.
The invention is realized in this way a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity, including shell, spool, valve
Set and flow compensation valve offer oil return opening, oil inlet, right turn hydraulic fluid port and left steering hydraulic fluid port above the shell, described
The inside of shell is also provided with oil return annular groove, left steering annular groove, Flow amplification annular groove, right turn annular groove and oil inlet annular groove, described
Oil return annular groove, left steering annular groove, Flow amplification annular groove, right turn annular groove and oil inlet annular groove are distributed from left to right, the spool
Outer surface offers the oil return of spool right turn, spool turns to oil-feed tank, spool left steering oil return hole, spool distributing groove and spool into
Oil groove, the spool right turn oil return, spool turn to oil-feed tank, spool left steering oil return hole, spool distributing groove and spool oil inlet
Slot is distributed from left to right, the outer surface valve pocket left steering oilhole of the valve pocket, valve pocket amplification fuel feed hole, valve pocket right turn oilhole,
Valve pocket distributor port and valve pocket fuel feed hole, the valve pocket left steering oilhole, valve pocket amplify fuel feed hole, valve pocket right turn oilhole, valve pocket
Distributor port and valve pocket fuel feed hole are distributed from left to right, and the valve pocket is sheathed on the outer surface of the spool, and the valve core rotation connects
It is connected to the valve pocket, the flow compensation valve includes adjusting nut, compensation valve body, spring and compensating spool, the adjusting nut
It is bolted in the compensation valve body, the spring is located at the right side of the adjusting nut, and the compensating spool is located at the spring
The inside on right side, the compensation valve body offers recuperation valve oil outlet, recuperation valve oil inlet and valve port, the spring and institute respectively
The top that recuperation valve oil inlet is respectively positioned on the compensation valve body is stated, the recuperation valve oil inlet is located at the recuperation valve oil outlet
Right side, and the valve port is connected to the recuperation valve oil inlet, the valve port is located at the lower section of the recuperation valve oil inlet.
Preferably, the recuperation valve oil outlet is connected to the Flow amplification annular groove, and the recuperation valve oil inlet is connected to
The oil inlet annular groove.
Preferably, the spool right turn oil return, spool turn to oil-feed tank, spool left steering oil return hole, spool distributing groove
Amplify fuel feed hole, valve pocket right turn oilhole, valve pocket distributor port with the valve pocket left steering oilhole, valve pocket respectively with spool oil-feed tank
It is adapted with valve pocket fuel feed hole.
Preferably, the oil return annular groove, left steering annular groove, Flow amplification annular groove, right turn annular groove and the equal ring of oil inlet annular groove
It is around in the outer surface of the valve pocket.
Preferably, it is provided with baffle on the left of the right side of the adjusting nut and the compensating spool, the spring
Both ends are respectively held against two baffles.
Preferably, the compensating spool is shaped to truncated cone-shaped, and the diameter of the compensating spool is from left to right gradually
Contracting.
Preferably, the inside of the compensation valve body offers cavity, and the cavity is divided into thickness both ends, and the cavity
Left side diameter be greater than right side diameter.
Preferably, the recuperation valve oil outlet is connected to the butt end of the cavity, and the recuperation valve oil inlet is connected to institute
State the taper end of cavity.
Preferably, the valve port is shaped to reverse frustoconic, and the valve port and the compensating spool are adapted.
Preferably, the flow compensation valve is installed on the bottom of the shell, and the recuperation valve body is located at the oil return
The lower section of annular groove, left steering annular groove, Flow amplification annular groove, right turn annular groove and oil inlet annular groove.
Compared with prior art, the beneficial effects of the present invention are: the adjustable Flow amplification of a kind of discharge capacity of the invention is hydraulic
Diverter changes the elastic force of the spring by the way that the adjusting nut is arranged, when in the elastic force system for monitoring the spring
When number reduces, at this time by the inside spiral shell of the adjusting nut into, the adjusting nut drives the spring to move right at this time, thus
The elastic force for increasing the spring, when the spring spring ratio reduce to a certain extent when, at this time by the adjusting nut to
Outer spiral shell goes out, and then takes out the old spring, the spring more renewed so that the flow compensation valve can be just
Often operating, compares more existing hydraulic steering gear, and the adjustable Flow amplification hydraulic steering gear of novel discharge capacity can be realized stabilization
It, can be in the spring in fatigue, so that the flow compensation valve works normally, when replacing the spring while steering
Simpler convenience.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is schematic diagram of internal structure of the invention；
Fig. 3 is the structural schematic diagram of flow compensation valve in the present invention；
Fig. 4 is the structural schematic diagram of spool in the present invention；
In figure: 1- shell, 11- oil return opening, 12- oil inlet, 13- right turn hydraulic fluid port, 14- left steering hydraulic fluid port, 15- back oil ring
Slot, 16- left steering annular groove, 17- Flow amplification annular groove, 18- right turn annular groove, 19- oil inlet annular groove, 2- spool, 21- spool are turned right
Oil-feed tank, 23- spool left steering oil return hole, 24- spool distributing groove, 25- spool oil-feed tank, 3- valve are turned to oil return, 22- spool
Set, 31- valve pocket left steering oilhole, 32- valve pocket amplify fuel feed hole, 33- valve pocket right turn oilhole, 34- valve pocket distributor port, 35- valve
It covers fuel feed hole, 4- flow compensation valve, 41- adjusting nut, 42- and compensates valve body, 43- recuperation valve oil outlet, 44- recuperation valve oil inlet
Mouth, 45- spring, 46- valve port, 47- compensating spool.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity,
Including shell 1, spool 2, valve pocket 3 and flow compensation valve 4, the top of shell 1 offers oil return opening 11, oil inlet 12, right turn
Hydraulic fluid port 13 and left steering hydraulic fluid port 14, the inside of shell 1 are also provided with oil return annular groove 15, left steering annular groove 16, Flow amplification annular groove
17, right turn annular groove 18 and oil inlet annular groove 19, oil return annular groove 15, left steering annular groove 16, Flow amplification annular groove 17, right turn annular groove
18 and oil inlet annular groove 19 be distributed from left to right, the outer surface of spool 2 offer spool right turn oil return 21, spool turn to oil-feed tank
22, spool left steering oil return hole 23, spool distributing groove 24 and spool oil-feed tank 25, spool right turn oil return 21, spool turn into
Oil groove 22, spool left steering oil return hole 23, spool distributing groove 24 and spool oil-feed tank 25 are distributed from left to right, the appearance of valve pocket 3
Face valve pocket left steering oilhole 31, valve pocket amplification fuel feed hole 32, valve pocket right turn oilhole 33, valve pocket distributor port 34 and valve pocket fuel feed hole
35, valve pocket left steering oilhole 31, valve pocket amplification fuel feed hole 32, valve pocket right turn oilhole 33, valve pocket distributor port 34 and valve pocket oil inlet
Hole 35 is distributed from left to right, and valve pocket 3 is sheathed on the outer surface of spool 2, and spool 2 is rotationally connected with valve pocket 3, and flow compensation valve 4 wraps
Adjusting nut 41, compensation valve body 42, spring 45 and compensating spool 47 are included, adjusting nut 41 is bolted in compensation valve body 42, spring 45
Positioned at the right side of adjusting nut 41, compensating spool 47 is located at the right side of spring 45, and the inside of compensation valve body 42 offers benefit respectively
Valve oil outlet 43, recuperation valve oil inlet 44 and valve port 46 are repaid, spring 45 and recuperation valve oil inlet 44 are respectively positioned on compensation valve body 42
Top, recuperation valve oil inlet 44 is located at the right side of recuperation valve oil outlet 43, and valve port 46 is connected to recuperation valve oil inlet 44, valve port
46 are located at the lower section of recuperation valve oil inlet 44.
In the present embodiment, the B road binders liquid directly 19 entrance recuperation valve oil inlets 44 through shell 1, overcome flow control
Spring 55 processed, after pushing compensating spool 47, oil liquid is put by valve main aperture 46 by the flow that recuperation valve oil outlet 43 reaches shell 1
Valve pocket amplification fuel feed hole 32 and spool 2 after big annular groove 17, when due to the rotation of 2 opposing valve sleeves 3 of spool being 2 ° or so, on valve pocket 3
It turns to oil-feed tank 22 to connect, oil liquid reaches spool through the amplification fuel feed hole 32 of valve pocket 3 and turns to oil-feed tank 25, A, and two oil circuit of B is in valve
Spool on core 2 turns to oil-feed tank 22 and converges according to a certain percentage for all the way.The oil liquid converged is through the right turn on valve pocket 23
Hydraulic fluid port 33 enters steering cylinder through pipeline after the right turn annular groove 18 on shell 1, and deflecting roller is pushed to turn right.
In the present embodiment, when steering wheel starts turning, the oil liquid into the oil inlet annular groove 19 of shell 1 is divided into two
Road, all the way by valve pocket distributor port 24 after the oil-feed tank 22 of the fuel feed hole 35 of valve pocket 3 to spool 2, through the radial hole on shell 1
Oil liquid is through the steering oil-feed tank 25 on the distributor port 24 to spool 2 on shell 1 and valve pocket 3 afterwards.Oil liquid another way enters on shell 1
Flow compensation valve 4, amplification annular groove 17 is turned in 1 main aperture of shell according to a certain percentage and reaches fixed size on valve pocket 3
Then enlarged opening 32 reaches the steering on spool 2 into slot 22, directly arrives and turn to oil-feed tank 22, two-way oil liquid converges through on valve pocket 3
Steering fuel feed hole 35, hydraulic fluid port is turned to by right turn hydraulic fluid port 13 on shell 1 and left steering hydraulic fluid port 14 and reaches steering cylinder, is pushed away
Dynamic deflecting roller is realized or be turned right, and amplification fluid-link steering function is reached；Change the elastic force of spring by setting adjusting nut
, when the spring ratio for monitoring spring reduces, at this time by the inside spiral shell of adjusting nut 41 into adjusting nut 41 drives at this time
Spring 45 moves right, to increase the elastic force of spring 45, when the spring ratio of spring 45 reduces to a certain extent, at this time will
The outside spiral shell of adjusting nut 41 goes out, and then takes out old spring 45, the spring 45 more renewed, so that flow compensation valve 4
It can run well, compare more existing hydraulic steering gear, the adjustable Flow amplification hydraulic steering gear of novel discharge capacity can be real
It, can be in spring in fatigue, so that flow compensation valve normal work, simpler when replacing spring while existing stable turning
Folk prescription is just.
Further, recuperation valve oil outlet 43 is connected to Flow amplification annular groove 17, and recuperation valve oil inlet 44 is connected to oil inlet
Annular groove 19.
In the present embodiment, oil liquid another way enters the flow compensation valve 4 on shell 1, according to a certain percentage through shell 1
The enlarged opening 32 that amplification annular groove 17 reaches the fixed size on valve pocket 3 is turned in main aperture, then reaches steering on spool 2 into slot
22, it directly arrives and turns to oil-feed tank 22, two-way oil liquid converges through the steering fuel feed hole 35 on valve pocket 3, passes through the right turn on shell 1
Hydraulic fluid port 13 and left steering hydraulic fluid port 14 turn to hydraulic fluid port and reach steering cylinder, push deflecting roller to realize or turn right, reach amplification liquid
Press turning function
Further, spool right turn oil return 21, spool turn to oil-feed tank 22, spool left steering oil return hole 23, spool and match
Oil groove 24 and spool oil-feed tank 25 respectively with valve pocket left steering oilhole 31, valve pocket amplification fuel feed hole 32, valve pocket right turn oilhole 33,
Valve pocket distributor port 34 and valve pocket fuel feed hole 35 are adapted.
In the present embodiment, the B road binders liquid directly 19 entrance recuperation valve oil inlets 44 through shell 1, overcome flow control
Spring 55 processed, after pushing compensating spool 47, oil liquid is put by valve main aperture 46 by the flow that recuperation valve oil outlet 43 reaches shell 1
Valve pocket amplification fuel feed hole 32 and spool 2 after big annular groove 17, when due to the rotation of 2 opposing valve sleeves 3 of spool being 2 ° or so, on valve pocket 3
Oil-feed tank 22 is turned to connect, oil liquid reaches spool through the amplification fuel feed hole 32 of valve pocket 3 and turns to oil-feed tank 25,.
Further, oil return annular groove 15, left steering annular groove 16, Flow amplification annular groove 17, right turn annular groove 18 and oil inlet ring
Slot 19 is surrounded on the outer surface of valve pocket 3.
In the present embodiment, the B road binders liquid directly 19 entrance recuperation valve oil inlets 44 through shell 1, overcome flow control
Spring 55 processed, after pushing compensating spool 47, oil liquid is put by valve main aperture 46 by the flow that recuperation valve oil outlet 43 reaches shell 1
Valve pocket amplification fuel feed hole 32 and spool 2 after big annular groove 17, when due to the rotation of 2 opposing valve sleeves 3 of spool being 2 ° or so, on valve pocket 3
Oil-feed tank 22 is turned to connect, oil liquid reaches spool through the amplification fuel feed hole 32 of valve pocket 3 and turns to oil-feed tank 25,.
Further, the right side of adjusting nut 41 and the left side of compensating spool 47 are provided with baffle, the both ends of spring 45
It is respectively held against two baffles.
In the present embodiment, when the spring ratio deficiency of spring 45, at this time by the inside spiral shell of adjusting nut 41 at this time
Adjusting nut 41 drives spring 45 to move right, to increase the elastic force of spring 45.
Further, compensating spool 47 is shaped to truncated cone-shaped, and the diameter of compensating spool 47 is tapered from left to right.
In the present embodiment, when needing not compensate for, spring 45 is expanded and is driven at this time, and compensating spool 47 is transported to the right
Dynamic, the right end of compensating spool 47 resists valve port 46 at this time, closes at this time to valve port 46.
Further, the inside for compensating valve body 42 offers cavity, and cavity is divided into thickness both ends, and the left side of cavity is straight
Diameter is greater than the diameter on right side.
In the present embodiment, as shown in figure 3, the inside of compensation valve body 42 offers cavity, and cavity is divided into thickness two
End, and the left side diameter of cavity is greater than the diameter on right side.
Further, recuperation valve oil outlet 43 is connected to the butt end of cavity, and recuperation valve oil inlet 44 is connected to the thin of cavity
End.
In the present embodiment, when recuperation valve oil inlet 44 has oil liquid to enter, its B road binders liquid is directly through shell 1 at this time
19 enter recuperation valve oil inlet 44, overcome flow control spring 55, and after pushing compensating spool 47, oil liquid is passed through by valve main aperture 46
After recuperation valve oil outlet 43 reaches the Flow amplification annular groove 17 of shell 1, when due to the rotation of 2 opposing valve sleeves 3 of spool for 2 ° or so, valve
Valve pocket amplification fuel feed hole 32 on set 3 turns to oil-feed tank 22 with spool 2 and connects, and oil liquid is reached through the amplification fuel feed hole 32 of valve pocket 3
Spool turns to oil-feed tank 25.
Further, valve port 46 is shaped to reverse frustoconic, and valve port 46 and compensating spool 47 are adapted.
In the present embodiment, when needing not compensate for, spring 45 is expanded and is driven at this time, and compensating spool 47 is transported to the right
Dynamic, the right end of compensating spool 47 resists valve port 46 at this time, and valve port 46 is shaped to reverse frustoconic, and valve port 46 and recuperation valve
Core 47 is adapted, and is closed at this time to valve port 46.
Further, flow compensation valve 4 is installed on the bottom of shell 1, and compensates valve body 42 and be located at oil return annular groove 15, turn left
To the lower section of annular groove 16, Flow amplification annular groove 17, right turn annular groove 18 and oil inlet annular groove 19.
In the present embodiment, oil liquid another way enters the flow compensation valve 4 on shell 1, according to a certain percentage through shell 1
The enlarged opening 32 that amplification annular groove 17 reaches the fixed size on valve pocket 3 is turned in main aperture, then reaches steering on spool 2 into slot
22, it directly arrives and turns to oil-feed tank 22, two-way oil liquid converges through the steering fuel feed hole 35 on valve pocket 3, passes through the right turn on shell 1
Hydraulic fluid port 13 and left steering hydraulic fluid port 14 turn to hydraulic fluid port and reach steering cylinder, push deflecting roller to realize or turn right, reach amplification liquid
Press turning function.
The working principle of the invention and process for using: after the present invention installs, when steering wheel starts turning, into shell
The oil liquid of the oil inlet annular groove 19 of body 1 is divided into two-way, passes through valve after the oil-feed tank 22 of the fuel feed hole 35 of valve pocket 3 to spool 2 all the way
Cover distributor port 24, after the radial hole on shell 1 oil liquid through the steering on the distributor port 24 to spool 2 on shell 1 and valve pocket 3 into
Oil groove 25.Oil liquid another way enters the flow compensation valve 4 on shell 1, turns to amplifying ring in 1 main aperture of shell according to a certain percentage
Slot 17 reaches the enlarged opening 32 of the fixed size on valve pocket 3, then reaches the steering on spool 2 into slot 22, directly to turn into
Oil groove 22, two-way oil liquid converge through the steering fuel feed hole 35 on valve pocket 3, pass through the right turn hydraulic fluid port 13 and left steering on shell 1
Hydraulic fluid port 14 turns to hydraulic fluid port and reaches steering cylinder, and deflecting roller is pushed to realize or turn right, and reaches amplification fluid-link steering function；Pass through
Adjusting nut is set to change the elastic force of spring, when the spring ratio for monitoring spring reduces, at this time by adjusting nut
41 inside spiral shells are into adjusting nut 41 drives spring 45 to move right at this time, to increase the elastic force of spring 45, when the bullet of spring 45
When force coefficient is reduced to a certain extent, the outside spiral shell of adjusting nut 41 is gone out at this time, then old spring 45 is taken out, is more renewed
Spring 45 compares more existing hydraulic steering gear, novel discharge capacity can so that flow compensation valve 4 can run well
It, can be in spring in fatigue, so that flow-compensated while the Flow amplification hydraulic steering gear of tune can be realized stable turning
Valve works normally, the simpler convenience when replacing spring.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity, which is characterized in that including shell, spool valve pocket and flow-compensated
Valve offers oil return opening, oil inlet, right turn hydraulic fluid port and left steering hydraulic fluid port above the shell, and the inside of the shell is also
Oil return annular groove, left steering annular groove, Flow amplification annular groove, right turn annular groove and oil inlet annular groove are offered, the oil return annular groove turns left
It is distributed from left to right to annular groove, Flow amplification annular groove, right turn annular groove and oil inlet annular groove, the outer surface of the spool offers valve
Core right turn oil return hole, spool turn to oil-feed tank, spool left steering oil return hole, spool distributing groove and spool oil-feed tank, the valve
Core right turn oil return hole, spool turn to oil-feed tank, spool left steering oil return hole, spool distributing groove and spool oil-feed tank from left to right
Distribution, outer surface valve pocket left steering oilhole, the valve pocket of the valve pocket amplify fuel feed hole, valve pocket right turn oilhole, valve pocket distributor port
With valve pocket fuel feed hole, the valve pocket left steering oilhole, valve pocket amplification fuel feed hole, valve pocket right turn oilhole, valve pocket distributor port and valve
Set fuel feed hole is distributed from left to right, and the valve pocket is sheathed on the outer surface of the spool, and the valve core rotation is connected to the valve
Set,
The flow compensation valve includes that adjusting nut, compensation valve body, spring and compensating spool, the adjusting nut are bolted in described
Valve body is compensated, the spring is located at the right side of the adjusting nut, and the compensating spool is located at the right side of the spring, the benefit
The inside for repaying valve body offers recuperation valve oil outlet, recuperation valve oil inlet and valve port respectively, the spring and the recuperation valve into
Hydraulic fluid port is respectively positioned on the top of the compensation valve body, and the recuperation valve oil inlet is located at the right side of the recuperation valve oil outlet, and institute
It states valve port and is connected to the recuperation valve oil inlet, the valve port is located at the lower section of the recuperation valve oil inlet.
2. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the recuperation valve
Oil outlet is connected to the Flow amplification annular groove, and the recuperation valve oil inlet is connected to the oil inlet annular groove.
3. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the spool is right
Turn to oil return hole, spool turn to oil-feed tank, spool left steering oil return hole, spool distributing groove and spool oil-feed tank respectively with the valve
Set left steering oilhole, valve pocket amplification fuel feed hole, valve pocket right turn oilhole, valve pocket distributor port and valve pocket fuel feed hole are adapted.
4. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the back oil ring
Slot, left steering annular groove, Flow amplification annular groove, right turn annular groove and oil inlet annular groove are surrounded on the outer surface of the valve pocket.
5. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the adjusting spiral shell
It is provided with baffle on the left of female right side and the compensating spool, the both ends of the spring are respectively held against two baffles.
6. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the recuperation valve
Core is shaped to truncated cone-shaped, and the diameter of the compensating spool is tapered from left to right.
7. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the recuperation valve
The inside of body offers cavity, and the cavity is divided into thickness both ends, and the left side diameter of the cavity is greater than the diameter on right side.
8. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that recuperation valve is fuel-displaced
Mouth is connected to the butt end of the cavity, and the recuperation valve oil inlet is connected to the taper end of the cavity.
9. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the valve port
It is shaped to reverse frustoconic, and the valve port and the compensating spool are adapted.
10. a kind of adjustable Flow amplification hydraulic steering gear of discharge capacity as described in claim 1, which is characterized in that the flow
Recuperation valve is installed on the bottom of the shell, and the recuperation valve body is located at the oil return annular groove, left steering annular groove, Flow amplification
The lower section of annular groove, right turn annular groove and oil inlet annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030990.8A CN109131550B (en) | 2018-09-05 | 2018-09-05 | Displacement-adjustable flow amplification hydraulic steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030990.8A CN109131550B (en) | 2018-09-05 | 2018-09-05 | Displacement-adjustable flow amplification hydraulic steering gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109131550A true CN109131550A (en) | 2019-01-04 |
| CN109131550B CN109131550B (en) | 2021-05-07 |
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ID=64827004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811030990.8A Active CN109131550B (en) | 2018-09-05 | 2018-09-05 | Displacement-adjustable flow amplification hydraulic steering gear |
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| CN (1) | CN109131550B (en) |
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| CN202176565U (en) * | 2011-08-05 | 2012-03-28 | 浙江海宏液压科技股份有限公司 | Flow amplifying valve |
| CN203335512U (en) * | 2013-07-08 | 2013-12-11 | 镇江液压有限责任公司 | Hydraulic steering device |
| CN104776077A (en) * | 2015-02-06 | 2015-07-15 | 湘潭大学 | Load-sensitive multiway valve with micromotion valve element |
| CN106697045A (en) * | 2015-11-16 | 2017-05-24 | 镇江液压股份有限公司 | Multiple-damping-buffer noise-reduction type low-noise steering gear |
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2018
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| JPH0880861A (en) * | 1994-09-13 | 1996-03-26 | Nissan Motor Co Ltd | Whole fluid pressure type power steering device |
| CN2496738Y (en) * | 2001-07-10 | 2002-06-26 | 济宁伊顿液压有限公司 | Combined valve type cycloidal hydraulic steering gear |
| RU2224676C2 (en) * | 2002-03-12 | 2004-02-27 | Открытое акционерное общество "Елецкий завод тракторных гидроагрегатов" | Vehicle hydraulic steering gear |
| CN2839067Y (en) * | 2005-09-21 | 2006-11-22 | 中国农业机械化科学研究院 | Coaxle flow amplifing compound sensing steering gear |
| CN202176565U (en) * | 2011-08-05 | 2012-03-28 | 浙江海宏液压科技股份有限公司 | Flow amplifying valve |
| CN203335512U (en) * | 2013-07-08 | 2013-12-11 | 镇江液压有限责任公司 | Hydraulic steering device |
| CN104776077A (en) * | 2015-02-06 | 2015-07-15 | 湘潭大学 | Load-sensitive multiway valve with micromotion valve element |
| CN106697045A (en) * | 2015-11-16 | 2017-05-24 | 镇江液压股份有限公司 | Multiple-damping-buffer noise-reduction type low-noise steering gear |
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| CN109131550B (en) | 2021-05-07 |
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