CN209479756U - A kind of automobile energy-saving fluid-link steering auxiliary system - Google Patents
A kind of automobile energy-saving fluid-link steering auxiliary system Download PDFInfo
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- CN209479756U CN209479756U CN201920009021.8U CN201920009021U CN209479756U CN 209479756 U CN209479756 U CN 209479756U CN 201920009021 U CN201920009021 U CN 201920009021U CN 209479756 U CN209479756 U CN 209479756U
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- oil
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- hydraulic fluid
- fluid port
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Abstract
The utility model discloses a kind of automobile energy-saving fluid-link steering auxiliary system, including steering pump, proportional reversing valve, diverter, steering cylinder and shuttle valve, proportional reversing valve is equipped with oil inlet P, oil outlet A, T and control port L, diverter is equipped with oil inlet P 1, oil return inlet T 1, oil outlet R2, L2, oil inlet A2, B2 and oil outlet LS is arranged in shuttle valve, the connection of the oil outlet of oil inlet P and steering pump, oil outlet A is connect with oil inlet P 1, oil outlet T and oil return inlet T 1 return to fuel tank, and oil outlet R2, L2 and steering cylinder connect fuel feeding oil return；Oil outlet R2, L2 are also connect with oil inlet A2, B2 of shuttle valve respectively, and the control port L that the oil outlet LS of shuttle valve is connected to proportional reversing valve adjusts proportional reversing valve fluid path PA and opens ratio.The utility model can be controlled according to steering cylinder real-time working condition into the flow inside diverter, and can be without straight-going state control steering cylinder pressure release is turned to, and energy conservation and environmental protection improves steering system service life.
Description
Technical field
The utility model relates to Vehicle Engineering technical fields, and in particular to a kind of automobile energy-saving fluid-link steering auxiliary system.
Background technique
Vehicular turn generally passes through steering pump by oil suction in fuel tank, then by reversal valve and diverter control steering cylinder into
Oil is completed.Existing Vehicular turn hydraulic system leads to steering pump since the real-time working condition of steering cylinder is unable to get feedback
Output power and steering cylinder real-time working condition the case where not being inconsistent, the extra output flow of steering pump must also be by diverter
Portion's damping results in power flow waste, does not meet energy conservation and environmental protection requirement.In addition, steering system used at present, then without steering
When straight-line travelling, it is used in high pressure conditions inside steering cylinder, has seriously affected the service life of steering cylinder.
Therefore it is very necessary to develop a kind of automobile energy-saving fluid-link steering auxiliary system.
Utility model content
The purpose of this utility model is to provide a kind of automobile energy-saving fluid-link steering auxiliary system, the steering assist system energy
It is enough to be controlled according to steering cylinder real-time working condition into the flow inside diverter, and can be without steering straight-going state control
Steering cylinder pressure release, energy conservation and environmental protection improve steering system service life.
To achieve the goals above, the technical solution of the utility model is:
A kind of automobile energy-saving fluid-link steering auxiliary system, including steering pump, proportional reversing valve, diverter, steering cylinder with
And shuttle valve, the proportional reversing valve are equipped with oil inlet P, oil outlet A, T and control port L, the diverter is equipped with oil inlet
P1, oil return inlet T 1 and oil outlet R2, L2, described shuttle valve setting oil inlet A2, B2 and oil outlet LS, the oil inlet P with
The oil outlet of the steering pump connects, and the oil outlet A is connect with the oil inlet P 1, and the oil outlet T and oil return inlet T 1 are returned
To fuel tank, oil outlet R2, L2 connect fuel feeding oil return with the steering cylinder；Described oil outlet R2, L2 also respectively with the shuttle valve
Oil inlet A2, B2 connection, the oil outlet LS of the shuttle valve be connected to the proportional reversing valve control port L adjust ratio change
Ratio is opened to valve fluid path PA.
Compared with prior art, the utility model has the beneficial effects that
Oil outlet R2, L2 of the utility model diverter are respectively connected to oil inlet A2, B2 of shuttle valve, shuttle valve oil outlet LS
It is connected to the control port L of proportional reversing valve；Shuttle valve compares the hydraulic of oil outlet R2, L2, and chooses real-time working condition maximum functional
Hydraulic pressure transfer is to proportional reversing valve control port L, so that the switch ratio of proportional reversing valve is adjusted, so that corresponding to actual condition
The oil liquid of flow enters inside diverter, avoids flow and power dissipation, energy conservation and environmental protection.
Further improvement of the utility model scheme is as follows:
Further, the steering cylinder includes left steering oil cylinder and right turn oil cylinder, and the oil outlet R2 is connected to institute
State left steering cylinder rod chamber and right turn oil cylinder rodless cavity, the oil outlet L2 be connected to the left steering oil cylinder rodless cavity and
Right turn cylinder rod chamber.
Further, the oil outlet LS is additionally coupled to the first fine filter, and the first fine filter oil outlet passes through pressure stabilizing
Eduction valve is connected to fuel tank.
By using above scheme, the flow of steady pressure discharge valve is smaller, and when turning to work, steady pressure discharge valve does not influence reality
When the hydraulic Normal Feedback of operating condition；It is hydraulic by steady pressure discharge valve pressure release inside steering cylinder when in without turning to linear state,
Fuel tank is returned to, avoids influencing service life for a long time in high pressure conditions inside steering cylinder.
Further, the control port L is additionally coupled to the second fine filter, and the second fine filter oil outlet passes through overload
Valve is connected to fuel tank.
By using above scheme, avoid control port L hydraulic excessive, setting overload valve guarantees system safety.
Further, the diverter includes reversal valve and rotary valve, and the oil inlet P 1, the setting of oil return inlet T 1 are changed described
To on valve, it is additionally provided with hydraulic fluid port A1, B1, C1, D1 on the reversal valve and control port L1, the rotary valve are provided with hydraulic fluid port
B3, C3 and oil outlet E3, the hydraulic fluid port A1 connection oil outlet R2, the hydraulic fluid port D1 connection oil outlet L2, the oil
Mouthful B1 and hydraulic fluid port C1 connects hydraulic fluid port B3, C3 of the rotary valve respectively, and the oil outlet E3 is connect with the control port L1；Institute
When stating reversal valve left position, the hydraulic fluid port A1 is connected to oil return inlet T 1, and hydraulic fluid port B1 is connected to oil inlet P 1, and hydraulic fluid port C1 and hydraulic fluid port D1 connect
It is logical；In the reversal valve when position, the hydraulic fluid port P1 is connected to the hydraulic fluid port T1；When the right position of the reversal valve, the hydraulic fluid port B1 and
Hydraulic fluid port A1 connection, the oil inlet P 1 are connected to hydraulic fluid port C1, and the hydraulic fluid port D1 is connected to oil return inlet T 1.
By using above scheme, steering direction is accurately controlled by reversal valve inside diverter and rotary valve.
Further, the hydraulic fluid port A1 and hydraulic fluid port D1 protects valve to be connected to the oil return inlet T 1 by limiting pressure, described
Oil return inlet T 1 is connect by check valve with the oil inlet P 1.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is the structural schematic diagram of the embodiments of the present invention.
It is as shown in the figure:
1, steering pump；
2, proportional reversing valve；
3, diverter；301, reversal valve；302, rotary valve；
4, shuttle valve；
5, left steering oil cylinder；
6, right turn oil cylinder；
7, the first fine filter；
8, steady pressure discharge valve；
9, the second fine filter；
10, overload valve；
11, fuel tank；
12, limiting pressure protects valve；
13, check valve.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.The meaning of " plurality " is two in the description of the present invention,
More than, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
As shown in Figure 1, a kind of automobile energy-saving fluid-link steering auxiliary system provided in this embodiment, including steering pump 1, ratio
Reversal valve 2, diverter 3, steering cylinder and shuttle valve 4.
Proportional reversing valve 2 is equipped with oil inlet P, oil outlet A, T and control port L.
Diverter 3 is equipped with oil inlet P 1, oil return inlet T 1 and oil outlet R2, L2.
Diverter 3 includes reversal valve 301 and rotary valve 302, and oil inlet P 1, oil return inlet T 1 are arranged on reversal valve 301, commutation
Hydraulic fluid port A1, B1, C1, D1 and control port L1 are additionally provided on valve 301, rotary valve 302 is provided with hydraulic fluid port B3, C3 and oil outlet
E3, hydraulic fluid port A1 connection oil outlet R2, hydraulic fluid port D1 connection oil outlet L2, hydraulic fluid port B1 and hydraulic fluid port C1 connect the oil of rotary valve 302 respectively
Mouthful B3, C3, oil outlet E3 are connect with control port L1；When 301 left position of reversal valve, hydraulic fluid port A1 is connected to oil return inlet T 1, hydraulic fluid port B1
It is connected to oil inlet P 1, hydraulic fluid port C1 is connected to hydraulic fluid port D1；In reversal valve 301 when position, hydraulic fluid port P1 is connected to hydraulic fluid port T1；Reversal valve
At 301 right, hydraulic fluid port B1 is connected to hydraulic fluid port A1, and oil inlet P 1 is connected to hydraulic fluid port C1, and hydraulic fluid port D1 is connected to oil return inlet T 1.
Hydraulic fluid port A1 and hydraulic fluid port D1 protects valve 12 to be connected to oil return inlet T 1 by limiting pressure, and oil return inlet T 1 passes through check valve 13
It is connect with oil inlet P 1.
Oil inlet A2, B2 and oil outlet LS is arranged in shuttle valve 4.
Steering cylinder includes left steering oil cylinder 5 and right turn oil cylinder 6.
Oil inlet P is connect with the oil outlet of steering pump 1, so oil outlet A is connect with oil inlet P 1, oil outlet T and oil return
Mouth T1 returns to fuel tank 11.
Oil outlet R2 is connected to 6 rodless cavity of 5 rod chamber of left steering oil cylinder and right turn oil cylinder, and oil outlet L2 is connected to left-hand rotation
To 6 rod chamber of 5 rodless cavity of oil cylinder and right turn oil cylinder.
Oil outlet R2, L2 are also connect with oil inlet A2, B2 of shuttle valve 4 respectively, and the oil outlet LS of shuttle valve 4 is connected to ratio and changes
301 fluid path PA of proportional reversing valve, which is adjusted, to the control port L of valve 2 opens ratio.
Oil outlet LS is additionally coupled to the first fine filter 7, and 7 oil outlet of the first fine filter is connected to oil by steady pressure discharge valve 8
Case 11.
The flow of steady pressure discharge valve 8 is smaller, and when turning to work, it is hydraulic normal anti-not influence real-time working condition for steady pressure discharge valve 8
Feedback；It is hydraulic by 8 pressure release of steady pressure discharge valve inside steering cylinder when in without turning to linear state, fuel tank 11 is returned to, is avoided
High pressure conditions are in inside steering cylinder for a long time, influence service life.
Control port L is additionally coupled to the second fine filter 9, and 9 oil outlet of the second fine filter is connected to fuel tank by overload valve 10
11.Avoid control port L hydraulic excessive, setting overload valve 10 guarantees system safety.
Oil outlet R2, L2 of the present embodiment diverter 3 are respectively connected to oil inlet A2, B2 of shuttle valve 4,4 oil outlet of shuttle valve
LS is connected to the control port L of proportional reversing valve 2；Shuttle valve 4 compares the hydraulic of oil outlet R2, L2, and chooses real-time working condition maximum
Working hydraulic pressure is transferred to 2 control port L of proportional reversing valve, so that the switch ratio of proportional reversing valve 2 is adjusted, so that with practical work
The oil liquid of condition corresponding discharge enters inside diverter 3, avoids flow and power dissipation, energy conservation and environmental protection.
In the specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the reality of the utility model
Applying example can practice without these specific details.In some instances, well known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this specification.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of automobile energy-saving fluid-link steering auxiliary system, which is characterized in that including steering pump, proportional reversing valve, diverter, turn
To oil cylinder and shuttle valve, the proportional reversing valve is equipped with oil inlet P, oil outlet A, T and control port L, the diverter and sets
Have oil inlet P 1, oil return inlet T 1 and oil outlet R2, L2, described shuttle valve setting oil inlet A2, B2 and oil outlet LS, it is described into
Hydraulic fluid port P is connect with the oil outlet of the steering pump, and the oil outlet A is connect with the oil inlet P 1, the oil outlet T and oil return
Mouth T1 returns to fuel tank, and oil outlet R2, L2 connect fuel feeding oil return with the steering cylinder；Described oil outlet R2, L2 also respectively with institute
Oil inlet A2, B2 connection of shuttle valve are stated, the control port L that the oil outlet LS of the shuttle valve is connected to the proportional reversing valve is adjusted
Proportional reversing valve fluid path PA opens ratio.
2. a kind of automobile energy-saving fluid-link steering auxiliary system according to claim 1, which is characterized in that the steering cylinder
Including left steering oil cylinder and right turn oil cylinder, the oil outlet R2 is connected to the left steering cylinder rod chamber and right turn oil cylinder
Rodless cavity, the oil outlet L2 are connected to the left steering oil cylinder rodless cavity and right turn cylinder rod chamber.
3. a kind of automobile energy-saving fluid-link steering auxiliary system according to claim 1, which is characterized in that the oil outlet LS
It is additionally coupled to the first fine filter, the first fine filter oil outlet is connected to fuel tank by steady pressure discharge valve.
4. a kind of automobile energy-saving fluid-link steering auxiliary system according to claim 1, which is characterized in that the control port
L is additionally coupled to the second fine filter, and the second fine filter oil outlet is connected to fuel tank by overload valve.
5. a kind of automobile energy-saving fluid-link steering auxiliary system according to any one of claims 1 to 4, which is characterized in that described
Diverter includes reversal valve and rotary valve, and the oil inlet P 1, oil return inlet T 1 are arranged on the reversal valve, on the reversal valve also
It is provided with hydraulic fluid port A1, B1, C1, D1 and control port L1, the rotary valve is provided with hydraulic fluid port B3, C3 and oil outlet E3, the oil
The mouth A1 connection oil outlet R2, the hydraulic fluid port D1 connection oil outlet L2, the hydraulic fluid port B1 and hydraulic fluid port C1 are connected respectively
Hydraulic fluid port B3, C3 of the rotary valve, the oil outlet E3 are connect with the control port L1；When the reversal valve left position, the oil
Mouth A1 is connected to oil return inlet T 1, and hydraulic fluid port B1 is connected to oil inlet P 1, and hydraulic fluid port C1 is connected to hydraulic fluid port D1；In the reversal valve when position,
The hydraulic fluid port P1 is connected to the hydraulic fluid port T1；When the right position of the reversal valve, the hydraulic fluid port B1 is connected to hydraulic fluid port A1, the oil inlet
P1 is connected to hydraulic fluid port C1, and the hydraulic fluid port D1 is connected to oil return inlet T 1.
6. a kind of automobile energy-saving fluid-link steering auxiliary system according to claim 5, which is characterized in that the hydraulic fluid port A1 and
Hydraulic fluid port D1 protects valve to be connected to the oil return inlet T 1 by limiting pressure, and the oil return inlet T 1 passes through check valve and the oil inlet
P1 connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009021.8U CN209479756U (en) | 2019-01-03 | 2019-01-03 | A kind of automobile energy-saving fluid-link steering auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009021.8U CN209479756U (en) | 2019-01-03 | 2019-01-03 | A kind of automobile energy-saving fluid-link steering auxiliary system |
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| Publication Number | Publication Date |
|---|---|
| CN209479756U true CN209479756U (en) | 2019-10-11 |
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ID=68130023
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009021.8U Active CN209479756U (en) | 2019-01-03 | 2019-01-03 | A kind of automobile energy-saving fluid-link steering auxiliary system |
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| CN (1) | CN209479756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649481A (en) * | 2019-01-03 | 2019-04-19 | 扬州盛达特种车有限公司 | A kind of automobile energy-saving fluid-link steering auxiliary system |
-
2019
- 2019-01-03 CN CN201920009021.8U patent/CN209479756U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649481A (en) * | 2019-01-03 | 2019-04-19 | 扬州盛达特种车有限公司 | A kind of automobile energy-saving fluid-link steering auxiliary system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225000 No. 8 Weichai Avenue, Hangjiang Automobile Industrial Park, Yangzhou City, Jiangsu Province Patentee after: Weichai (Yangzhou) Special Vehicle Co., Ltd Address before: 225000 No. 8 Weichai Avenue, Hangjiang Automobile Industrial Park, Yangzhou City, Jiangsu Province Patentee before: Yangzhou Shengda Special Vehicle Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |