CN207389293U - A kind of electro-hydraulic servo steering device - Google Patents
A kind of electro-hydraulic servo steering device Download PDFInfo
- Publication number
- CN207389293U CN207389293U CN201721191773.8U CN201721191773U CN207389293U CN 207389293 U CN207389293 U CN 207389293U CN 201721191773 U CN201721191773 U CN 201721191773U CN 207389293 U CN207389293 U CN 207389293U
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- CN
- China
- Prior art keywords
- booster pump
- electro
- steering
- power
- temperature sensor
- 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.)
- Expired - Fee Related
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- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The utility model discloses a kind of electro-hydraulic servo steering devices, the booster pump is connected by oil inlet pipe with oil storage tank, booster pump is connected by flowline with steering gear, the flowline is equipped with check valve, steering gear is connected by oil return pipe with oil storage tank, the output terminal of the power-assisted steering control unit is connected to booster pump, the output terminal of the power-assisted TCU transfer control unit is connected to booster pump, the cooling component includes water tank, temperature sensor, warning device and return duct, the temperature sensor is located in booster pump, the output terminal connection warning device of the temperature sensor, the water tank is connected by return duct with booster pump, the relay controls power-on switch by temperature sensor.The utility model adds cooling component, by being equipped with circulation loop between booster pump and water tank, can effectively solve the problems, such as to fight to the finish in steering wheel or operating mode that condition of road surface is poor turn under fluid temperature liter it is fast.
Description
Technical field
The utility model is related to a kind of automobile steering system more particularly to a kind of electro-hydraulic servo steering devices.
Background technology
When the operating mode that steering wheel fights to the finish or condition of road surface is poor turns to, rotary valve is closed so that passes through steering
The fluid of device is almost nil, and oil pump is not stopped at this time, and blade pump pressure moment increases, when reaching vane pump safety valve setting
Pressure value when, blade pump relief valve open, fluid realized in vane pump inside cycle.In this case, hydraulic energy is complete
Portion is converted into thermal energy, and blade pump pressure is high at this time, and power is big, rises with the temperature of fluid, viscosity becomes larger, and fluid can not pass through
External cooling, the oil liquid temperature that can only be cycled in vane pump is soon beyond the use value limit, and lose the profit of fluid in itself
Slip energy so that the blade in vane pump becomes dry friction with stator negative camber, accelerates the abrasion to stator negative camber.In height
Under temperature effect, the solids such as easy carbide precipitate of fluid so can further accelerate the abrasion of stator, due to rotor and oil distribution casing
Gap very little, after fluid loses greasy property, also easily cause oil distribution casing and rotor end-face burn and make vane pump
Failure.In addition, high temperature has also speeded up the aging of sealing element, cause sealing element failure and oil leak.In short, existing two hydraulic fluid ports knot
Structure, service life is short, poor reliability.
Utility model content
The purpose of this utility model is to provide a kind of electro-hydraulic servo steering device, to solve in above-mentioned background technology
The problem of proposition.To achieve the above object, the utility model provides following technical solution：
A kind of electro-hydraulic servo steering device, including oil storage tank, power-assisted steering control unit, motor, booster pump, steering
Device and cooling component, the booster pump are connected by oil inlet pipe with oil storage tank, and booster pump is connected by flowline with steering gear,
The flowline is equipped with check valve, and steering gear connected by oil return pipe with oil storage tank, the power-assisted steering control unit it is defeated
Outlet is connected to booster pump, the power-assisted TCU transfer control unit include torque sensor, rotation direction sensor, vehicle speed sensor and
Electromechanical transducer, the torque sensor, rotation direction sensor, vehicle speed sensor are each provided in steering gear, the electromechanical transducer
It is fixed on motor, the output terminal of the power-assisted TCU transfer control unit is connected to booster pump, and the cooling component includes water tank, temperature
Degree sensor, warning device and return duct, the temperature sensor are located in booster pump, the output terminal of the temperature sensor
Warning device is connected, the water tank is connected by return duct with booster pump, and the return duct is equipped with solenoid valve, the solenoid valve
It is controlled by relay, the relay controls power-on switch by temperature sensor.
Further, the warning device includes relay, control switchs and buzzer, the relay are passed by temperature
Sensor control switch, the control switch of the relay control buzzer.
Further, the solenoid valve includes electromagnet, valve body, electromagnetism valve follower and coil, the electromagnetism valve follower position
In in valve cavity, coil is wound on solenoid valve push rod head, and electromagnet is located at the middle part of electromagnetism valve follower, electromagnetism valve follower afterbody
It is adapted with restriction, electromagnetism valve follower afterbody is one end of annular taper or ball valve shape, restriction and the cooperation of electromagnetism valve follower
For annular taper.
Further, the oil storage tank is equipped with liquid level gauge, and observation window is equipped on the oil storage tank wall.
Further, steering wheel is installed in the steering gear.
Further, the power-assisted steering control unit includes central processing unit, and the output terminal of the central processing unit connects
Booster pump and cooling component are connected to, the input terminal of the central processing unit is connected to torque sensor, rotation direction sensor, speed and passes
Sensor and electromechanical transducer.
Further, the motor output shaft is connected with booster pump, and the output terminal of the central processing unit is connected to motor.
Compared with prior art, the beneficial effects of the utility model are：When motor turning, torque sensor, which detects, to be turned
To the torque and rotation direction of disk, these information are transferred to power-assisted steering control unit, by setting vehicle speed sensor and electricity
Machine sensor, real-time monitors each item data of automobilism, and by these data transfers to Power assisted control turning control cell,
The power-assisted steering control unit sends to motor and orders so that booster pump exports the rotation of correspondingly sized and direction rotatory force
Torque.In addition cooling component is added, by being equipped with circulation loop between booster pump and water tank, can effectively be solved in direction
Disk fights to the finish or condition of road surface is poor operating mode turns to the problem of lower fluid temperature liter is fast, fluid by the water cooling in water tank again
It returns in booster pump, ensure that the steady operating of booster pump.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure principle chart of the utility model power-assisted steering control unit.
In reference numeral：1- steering gears；2- steering wheels；3- torque sensors；4- vehicle speed sensor；5- booster pumps；6- is stored up
Oil tank；7- oil inlet pipes；8- flowlines；9- oil return pipes；10- return ducts；11- water tanks；12- temperature sensors；13- warning devices；
14- solenoid valves；15- check valves；16- motors；17- electromechanical transducers；18- central processing units；19- cooling components；20-, which is turned to, to be passed
Sensor.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：
A kind of electro-hydraulic servo steering device, including oil storage tank 6, power-assisted steering control unit, motor 16, booster pump 5,
Steering gear 1 and cooling component 19, the booster pump 5 are connected by oil inlet pipe 7 with oil storage tank 6, and booster pump 5 passes through flowline 7
It is connected with steering gear 1, the flowline 7 is equipped with check valve 15, and steering gear 1 is connected by oil return pipe 9 with oil storage tank 6, described
The output terminal of power-assisted steering control unit is connected to booster pump 5, and the power-assisted TCU transfer control unit includes torque sensor 3, turns
To sensor 20, vehicle speed sensor 4 and electromechanical transducer 17, the torque sensor 3, rotation direction sensor 20, speed sensing
Device 4 is each provided in steering gear 1, and the electromechanical transducer 17 is fixed on motor 16, the output of the power-assisted TCU transfer control unit
End is connected to booster pump 5, and the cooling component includes water tank 11, temperature sensor 12, warning device 13 and return duct 10, institute
It states temperature sensor 12 to be located in booster pump 5, the output terminal connection warning device 13 of the temperature sensor 12, the water tank 11
It is connected by return duct 10 with booster pump 5, the return duct 10 is equipped with solenoid valve 14, and the solenoid valve 14 is by relay control
System, the relay control power-on switch by temperature sensor 12.
Further, the warning device 13 includes relay, control switch and buzzer, and the relay is by temperature
The control switch of sensor 12, the control switch of the relay control buzzer.Prompting function is realized by warning device 13, is allowed
Driver recognizes that oil temperature raises.
Further, the solenoid valve 14 includes electromagnet, valve body, electromagnetism valve follower and coil, the electromagnetism valve follower
In valve cavity, coil is wound on solenoid valve push rod head, and electromagnet is located at the middle part of electromagnetism valve follower, electromagnetism valve follower tail
Portion is adapted with restriction, and electromagnetism valve follower afterbody is annular taper or ball valve shape, restriction and the one of the cooperation of electromagnetism valve follower
It holds as annular taper.Reach the increase with speed, export the purpose of fluid amount reduction.
Further, the oil storage tank 6 is equipped with liquid level gauge, and observation window is equipped on 6 outer wall of oil storage tank.Allow driving
Person is concerned about the variation of oil mass.
Further, steering wheel 2 is installed in the steering gear 1.
Further, the power-assisted steering control unit includes central processing unit 18, the output of the central processing unit 18
End is connected to booster pump 5 and cooling component 19, and the input terminal of the central processing unit 18 is connected to torque sensor 3, turns to biography
Sensor 20, vehicle speed sensor 4 and electromechanical transducer 17.Data are focused on by central processing unit, it is more intelligent.
Further, the motor output shaft is connected with booster pump 5, and the output terminal of the central processing unit 18 is connected to electricity
Machine 16.And central processing unit is allowed to handle data.
Operation principle：When motor turning, torque sensor 3 detects the torque and rotation direction for turning to 2 disks, by these
Information is transferred to power-assisted steering control unit, by setting vehicle speed sensor 4 and electromechanical transducer 17, real-time monitors automobile fortune
Capable each item data, and by these data transfers to power-assisted steering control unit, the power-assisted steering control unit is to motor 16
Send order so that booster pump 5 exports the rotating torque of correspondingly sized and direction rotatory force.In addition cooling component is added, is led to
Cross between booster pump 5 and water tank 11 be equipped with circulation loop, can effectively solve to fight to the finish in steering wheel or condition of road surface compared with
The operating mode of difference turns to lower fluid temperature and rises the problem of fast, and fluid is come back to by the water cooling in water tank 11 in booster pump 5, is ensured
The steady operating of booster pump 5.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of electro-hydraulic servo steering device, it is characterised in that：Including oil storage tank（6）, power-assisted steering control unit, motor
（16）, booster pump（5）, steering gear（1）And cooling component（19）, the booster pump（5）Pass through oil inlet pipe（7）With oil storage tank
（6）Connection, booster pump（5）Pass through flowline（7）With steering gear（1）Connection, the flowline（7）It is equipped with check valve（15）,
Steering gear（1）Pass through oil return pipe（9）With oil storage tank（6）Connection, the output terminal of the power-assisted steering control unit are connected to supercharging
Pump（5）, the power-assisted TCU transfer control unit include torque sensor（3）, rotation direction sensor（20）, vehicle speed sensor（4）And
Electromechanical transducer（17）, the torque sensor（3）, rotation direction sensor（20）, vehicle speed sensor（4）It is each provided at steering gear（1）
On, the electromechanical transducer（17）It is fixed on motor（16）On, the output terminal of the power-assisted TCU transfer control unit is connected to supercharging
Pump（5）, it is described cooling component include water tank（11）, temperature sensor（12）, warning device（13）And return duct（10）, it is described
Temperature sensor（12）It is located at booster pump（5）It is interior, the temperature sensor（12）Output terminal connection warning device（13）, it is described
Water tank（11）Pass through return duct（10）With booster pump（5）Connection, the return duct（10）It is equipped with solenoid valve（14）, the electromagnetism
Valve（14）It is controlled by relay, the relay is by temperature sensor（12）Control power-on switch.
2. a kind of electro-hydraulic servo steering device according to claim 1, it is characterised in that：The warning device includes
Relay, control switch and buzzer, the relay is by temperature sensor（12）Control switch, the relay control bee
The control switch of ring device.
3. a kind of electro-hydraulic servo steering device according to claim 1, it is characterised in that：The solenoid valve includes electricity
Magnet, valve body, electromagnetism valve follower and coil, the electromagnetism valve follower are located in valve cavity, and coil is wound on solenoid valve push rod cup
Portion, electromagnet are located at the middle part of electromagnetism valve follower, and electromagnetism valve follower afterbody is adapted with restriction, and electromagnetism valve follower afterbody is ring
One end of shape taper or ball valve shape, restriction and the cooperation of electromagnetism valve follower is annular taper.
4. a kind of electro-hydraulic servo steering device according to claim 1, it is characterised in that：The oil storage tank（6）On
Equipped with liquid level gauge, the oil storage tank（6）Observation window is installed on outer wall.
5. a kind of electro-hydraulic servo steering device according to claim 1, it is characterised in that：The steering gear（1）On
Steering wheel is installed（2）.
6. a kind of electro-hydraulic servo steering device according to claim 1, it is characterised in that：The power-assisted steering control
Unit includes central processing unit（18）, the central processing unit（18）Output terminal be connected to booster pump（5）With cooling component
（19）, the central processing unit（18）Input terminal be connected to torque sensor（3）, rotation direction sensor（20）, vehicle speed sensor
（4）And electromechanical transducer（17）.
7. a kind of electro-hydraulic servo steering device according to claim 6, it is characterised in that：The motor output shaft with
Booster pump（5）Connection, the central processing unit（18）Output terminal be connected to motor（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721191773.8U CN207389293U (en) | 2017-09-18 | 2017-09-18 | A kind of electro-hydraulic servo steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721191773.8U CN207389293U (en) | 2017-09-18 | 2017-09-18 | A kind of electro-hydraulic servo steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207389293U true CN207389293U (en) | 2018-05-22 |
Family
ID=62404489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721191773.8U Expired - Fee Related CN207389293U (en) | 2017-09-18 | 2017-09-18 | A kind of electro-hydraulic servo steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207389293U (en) |
-
2017
- 2017-09-18 CN CN201721191773.8U patent/CN207389293U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20180918 |