CN110001771A - A kind of full decoupling line traffic control hydraulic steering system - Google Patents
A kind of full decoupling line traffic control hydraulic steering system Download PDFInfo
- Publication number
- CN110001771A CN110001771A CN201910347928.XA CN201910347928A CN110001771A CN 110001771 A CN110001771 A CN 110001771A CN 201910347928 A CN201910347928 A CN 201910347928A CN 110001771 A CN110001771 A CN 110001771A
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- servomechanism
- steering
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 133
- 239000007788 liquid Substances 0.000 claims description 84
- 206010008469 Chest discomfort Diseases 0.000 claims description 82
- 229910052742 iron Inorganic materials 0.000 claims description 64
- 238000005192 partition Methods 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000446 fuel Substances 0.000 claims description 12
- 239000000872 buffer Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000001802 infusion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
-
- 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
- B62D5/10—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 power unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of full decoupling line traffic control hydraulic steering systems; belong to automobile steering system technical field; the object of the present invention is to provide a set of pair of motor performance requirement is lower; structure is more compact, is able to achieve the function of turning to full decoupling and fail safe, quick, the accurate wire-controlled steering system of angular adjustment with active steering；The system is turned to simulator, high pressure oil return mechanism, gear servomechanism, pinion-and-rack steering engine, front left wheel, right front wheel and electronic control unit and is formed by steering wheel, steering column, decoupling type；It is engaged with steering simulator gear or steering column with turning to the dynamic meshing gear property of can choose being arranged in simulator in decoupling type, the mechanical steering and fluid-link steering two ways that mate gear servomechanism is possessed simultaneously, both the full decoupling of driver and steering system had been realized, when simultaneity factor power-off failure, steering wheel and steered wheel are mechanically connected, and have ensured the safety driven.
Description
Technical field
The present invention relates to a kind of full decoupling line traffic control hydraulic steering systems, belong to automobile steering system technical field.
Background technique
With the development of intelligent automobile, traditional EPS (electronic power assist steering) system be no longer satisfied intelligent automobile to turn
New demand to system, being mainly reflected in traditional EPS is to be dominated by people, and intelligent automobile wishes considering driver intention
Under the premise of comprehensively consider various information such as pavement behavior, vehicle itself operating status to complete to turn to.On the other hand, traditional
EPS system cannot achieve the full decoupling of driver and steering system, so when occur active steering rear direction disk can be with generation
Rotation causes driver panic.Therefore, it is badly in need of developing a set of full decoupling wire-controlled steering system suitable for intelligent automobile.
Respectively turning to producer and the patent of domestic and foreign scholars in summary world wide can find that wire-controlled steering system is as newest
The steering system of a generation, compared with conventional steering system, having apparent technical advantage, there is also certain problems.Chinese patent
Publication No. is CN102085878A, and date of publication is on June 8th, 2011, entitled " steer by wire apparatus ", is applied artificial existing
For automatic vehicle Co., Ltd., which eliminates the mechanical connection between steering wheel and steering system, drives pull rod using motor
Complete go to action, this construction reduce the impact on road surface, eliminate collision when steering column to the injury of driver, increase and drive
The person's of sailing leg movements space improves driving comfort.But since that mechanical part has not been reached yet is reliable like that for electronic component
Degree, after electronic component failure, system is unable to complete most basic turning function, that is, not can guarantee electric steering system
Reliable and stable, trouble free service, this is also electric steering system presently the most distinct issues, and obstruct wire-controlled steering system
A universal key factor；Therefore develop a set of wire-controlled steering system with fail safe function be at present there is an urgent need to
's.
Chinese patent publication No. is CN107150718A, and date of publication is on September 12nd, 2017, entitled " multi-mode
Automobile steer-by-wire system " applies for artificial Jilin University, which drives hydraulic system using motor driven ball screws mechanism
Automobile multi-mode steering is realized, solves that steering power source in existing steering-by-wire technology is single, steering system power-off is lost
Safety is poor when effect, steering response simulation is not true to nature enough and turns to the not high problem of precision.But the steering precision of the system is by two
A motor determines, higher to the performance requirement of motor, so motor cost is higher, while motor is as its response of steering power source
Speed is slower, and on the other hand the hydraulic structure of the system is complex, and pipeline failure probability is big.
In conclusion therefore a set of pair of motor performance of exploitation requires lower, structure is more compact, be able to achieve turn to full decoupling and
The function of fail safe, quick, the accurate wire-controlled steering system of angular adjustment with active steering, have realistic meaning.
Summary of the invention
The technical problems to be solved by the present invention are: first, solve that noise of motor is big in traditional EPS and cannot achieve
The function of full decoupling is turned to needed for intelligent automobile；Second, it solves and cancels steering wheel in the wire-controlled steering system of part and turn to
Mechanical connection between wheel is unable to complete failure and turns to when system cut-off being caused to fail；Third solves part steering-by-wire
When system uses motor as steering-by-wire power source, the precision of steering system is controlled using motor, to motor performance requirement
It is higher, cost also higher problem；4th, when solving part wire-controlled steering system using liquid or gas conduct steering medium
Executing agency's complex structure and other problems.It is proposed it is a kind of using high pressure accumulator as steering power source, using high-speed switch electromagnetism
Valve controls the wire-controlled steering system that steering system precision makes automobile that can with fast accurate complete go to action, the steering-by-wire system
System is able to achieve the full decoupling of driver and steering system, has the function of fail safe, lower to motor requirement, and cost is relatively low,
Structure is simple, and integrated level is high.
The technical solution adopted in the present invention is specific as follows:
A kind of full decoupling line traffic control hydraulic steering system, the system turn to simulator by steering wheel 1, steering column 2, decoupling type
3, high pressure oil return mechanism 4, gear servomechanism 5, pinion-and-rack steering engine 6, front left wheel 7, right front wheel 8 and electronic control are single
Member 9 forms.
The bottom of steering wheel 1 is connected with the upper end of steering column 2, and decoupling type turns to upper end and the steering column 2 of simulator 3
Lower end be connected, decoupling type turn to simulator 3 lower end be flexibly connected with the upper end of gear servomechanism 5.
The lower end of gear servomechanism 5 is connect with the upper end of pinion-and-rack steering engine 6, the left and right of pinion-and-rack steering engine 6
Both ends pass through steering linkage respectively and are connected with front left wheel 7 and right front wheel 8, the upper end of pinion-and-rack steering engine 6 be gear, under
End is rack gear, and pinion-and-rack steering engine 6 can convert the rotary motion of the driven shaft 42 of gear servomechanism 5 in the straight line of rack gear
Movement.
The decoupling type turn to simulator 3 by steering simulator electromagnetism shell 10, attachment screw 11, rubber sheet gasket 12,
Conducting wire 13, driven friction disk rubber pad 15, driven friction disk 16, friction cylinder barrel 17, buffer rubber gasket 18, moves wire support 14
Meshing gear 19, active friction plate rubber pad 21, active friction plate 22, turns to simulator gear 23, connecting tube at steering column 20
24, electromagnetic driven iron 25, return spring 26 and the quiet iron 27 of electromagnetism form.
Wherein, the sleeve part that simulator electromagnetism shell 10 is upward opening is turned to, sleeve openings end has and steering tube
The internal screw thread that column 2 is connected, sleeve have concentric pylone on bottom surface, in the concentric pylone and turn in simulator electromagnetism shell 10
There are multiple circumferentially equally distributed small through hole between cylindrical surface；
Wire support 14 is the sleeve part of upper and lower ends opening, has biggish annular groove on external cylindrical surface, should
Groove is used to wind conducting wire 13；The upper and lower end face of wire support 14 has multiple circumferentially equally distributed respectively in outside cylinder
Small through hole, the small through hole pass through the annular groove on 14 external cylindrical surface of wire support；The inner cylinder face of wire support 14 is equipped with interior
Tooth；
The quiet iron 27 of electromagnetism is flange disk-like accessory, and the quiet iron 27 of electromagnetism is in flat head screw shape, and upper, head of screw exists screw cap
Under, there are multiple circumferentially equally distributed apertures near the external cylindrical surface close to screw cap, has internal screw thread in hole.
There is the external tooth matched with the internal tooth of wire support 14 on the external cylindrical surface of electromagnetic driven iron 25, electromagnetic driven iron 25 has together
Heart through-hole has the internal screw thread matched with the external screw thread of connecting tube 24 on through-hole wall.
The external cylindrical surface diameter of wire support 14 is equal with the inner cylinder face diameter of simulator electromagnetism shell 10 is turned to, conducting wire
Bracket 14 and the quiet iron 27 of electromagnetism are completely disposed in the cylinder for turning to simulator electromagnetism shell 10, and small on 14 lower end surface of wire support
Through-hole with turn to 10 lower circumference small through hole of simulator electromagnetism shell be aligned, by attachment screw 11 from turn to simulator electromagnetism shell
10 bottom of body, which hammers into, is fixed together wire support 14 and steering simulator electromagnetism shell 10；Under the screw cap of the quiet iron 27 of electromagnetism
End face is resisted against the upper surface of wire support 14, on the small through hole on 14 upper surface of wire support and quiet 27 screw cap of iron of electromagnetism
Apertures align is hammered by attachment screw 11 from the aperture on quiet 27 screw cap of iron of electromagnetism, by the quiet iron 27 of electromagnetism and wire support
14 are fixed together, and are fastened by rubber sheet gasket 12；
Electromagnetic driven iron 25 is located in the sleeve of wire support 14, the internal tooth in 14 sleeve of wire support and electromagnetic driven iron 25
External tooth matches.Return spring 26 is located in the sleeve of wire support 14, and the upper end of return spring 26 is resisted against the quiet iron 27 of electromagnetism
Lower end surface, the lower end of return spring 26 is resisted against the upper surface of electromagnetic driven iron 25；And it is fastened by rubber sheet gasket 12；
Rub the cylindrical part that cylinder barrel 17 is upper and lower opening, and inside is machined with annular groove；16 He of driven friction disk
Active friction plate 22 is rubber annular element；Driven friction disk rubber pad 15 is plantation rubber ring parts, and cross section both ends are in
Existing " bow " shape, the outer ring of driven friction disk rubber pad 15 are embedded into the annular groove of 17 inside of friction cylinder barrel, driven friction disk
Driven friction disk 16 is embedded in the inner ring of rubber pad 15；
Steering simulator gear 23 is internal gear, and outside is machined with annular groove；Active friction plate rubber pad 21 is rubber
Glue justifies ring parts, and " bow " shape is presented in cross section both ends, and the inner ring of active friction plate rubber pad 21 is embedded into steering simulator
In the annular groove in 23 outside of gear, active friction plate 22 is embedded in the outer ring of active friction plate rubber pad 21；Turn to simulator
Gear 23 is installed in the cylinder of friction cylinder barrel 17, and driven friction disk 16 and active friction plate 22 is made to form friction pair；
Buffer rubber gasket 18 is annular shape, and cross section is in " recessed " shape being open to the center of circle；The outer circle of dynamic meshing gear 19
Have external tooth on cylinder, there is concentric pylone in the inside of dynamic meshing gear 19, on the upper surface for moving meshing gear 19, concentric pylone with
Have section Wei " Yin between external tooth " annular groove of shape, which is used to place buffer rubber gasket 18.
Steering column 20 is the sleeve part of upward opening, has internal tooth on sleeve inner cylinder face；The outside cylinder of connecting tube 24
There is the external screw thread matched with dynamic meshing gear 19 and electromagnetic driven iron 25 on face.
Gear servomechanism 5 is by fastening bolt 35, gear servomechanism upper housing 36, high pressure chest fuel feed hole 37, driving shaft
38, sealing ring I39, pressure ring I 40, bearing I 41, driven shaft 42, driven gear 43, low pressure chamber oil outlet 44, rubber seal ring
I45, gear servomechanism lower case 46, hydraulic cavities cylinder barrel 47, low pressure chamber partition 48, pressure ring I I49, sealing ring II50, bearing
II51, driving gear 52, bearing I II53, bearing I V54, high pressure chest partition 55, high pressure chest liquid valve I56, low pressure chamber liquid feed valve
I57, low pressure chamber liquid feed valve II58, high pressure chest liquid valve II59, rubber seal ring III60 and rubber seal ring II61 composition.
Gear servomechanism upper housing 36 is downwardly open disk-like accessory, and outer profile is identical by two radiuses in left and right
Semicircle and intermediate rectangle connect composition, and the unfaithful intention of the centers of circle of two semicircles and rectangle is on the same line.Gear servomechanism
The dish type Internal periphery of upper housing 36 is consistent with outer contour shape, and the center of circle of two profiles is overlapped, Internal periphery undersized；Gear
Servomechanism upper housing 36 is uniformly distributed multiple through-holes between outer profile and Internal periphery, has internal screw thread on through-hole wall；Foreign steamer
Wide left side semicircle the center point has concentric ladder hole, and ladder hole upper end radius is greater than lower end radii；Outer profile right side semicircle circle
There is concentric blind hole at the heart, the blind hole internal diameter is identical as ladder hole bottom diameter；Along the disk of gear servomechanism upper housing 36
There is downwardly open annular groove at shape Internal periphery edge；Outer profile arranged on left and right sides semicircle the center point has downwardly open same respectively
Heart left semicircle connected in star and right semicircular groove, the end of two semi-circular recesses extend to dish type Internal periphery edge annular
The straight-line groove of groove.There is a round small through hole between dish type Internal periphery edge annular groove and concentric left semicircle connected in star,
The through-hole is high pressure chest fuel feed hole 37；Also there is a circle between dish type Internal periphery edge annular groove and concentric right semicircular groove
Shape small through hole, the through-hole are low pressure chamber oil outlet 44；High pressure chest fuel feed hole 37, low pressure chamber oil outlet 44 and two foreign steamers
The wide center of circle is on the same line.
Gear servomechanism lower case 46 be upward opening disk-like accessory, shape and size with gear servomechanism
Upper housing 36 around center rotate 180 ° after it is consistent, unique difference is gear servomechanism lower case 46 at dish type Internal periphery edge
Small through hole is not provided between annular groove and concentric left and right semi-circular recesses；
Through-hole between gear servomechanism upper housing 36 and the outer profile and Internal periphery of gear servomechanism lower case 46
Gear servomechanism upper housing 36 and gear servomechanism lower case 46, are fixed together by alignment by fastening bolt 35；
Hydraulic cavities cylinder barrel 47 is the steel tube kind part of upper and lower ends opening, cross-sectional profiles shape and gear servomechanism
Dish type Internal periphery in upper housing 36 is consistent, has along steel cylinder wall up and down simultaneously in two semicircles in left and right and four interfaces of rectangle
Four grooves of vertical distribution；Hydraulic cavities cylinder barrel 47 is mounted on gear servomechanism upper housing 36 and gear servomechanism lower case
In the annular groove of 46 Internal periphery edges, and will be on hydraulic cavities cylinder barrel 47 and gear servomechanism by rubber seal ring I45
Contact surface sealing between shell 36 and gear servomechanism lower case 46；
Rubber seal ring III60 is strip rubber part, and cross section is in " several " shape, four rubber seal ring III60
It is respectively placed in four vertical grooves on 47 inner wall of hydraulic cavities cylinder barrel.
Low pressure chamber partition 48 is the steel tube kind part of upper and lower ends opening, and cross section is the semicircle being open to the left, half
There is straight arm plate up and down at round both-side opening end respectively, has a circular hole respectively at the straight arm plate center of upper and lower ends, should
Circular hole is respectively used to place low pressure chamber liquid feed valve I57 and low pressure chamber liquid feed valve II58；
Low pressure chamber partition 48 is placed in opening to the left for gear servomechanism upper housing 36 and gear servomechanism lower case 46
In the semi-circular recesses of mouth, the upper and lower ends straight arm plate of low pressure chamber partition 48 is placed in hydraulic cavities cylinder barrel 47 just respectively at this time
It has placed in two vertical grooves of residue of rubber seal ring III60, inner wall and the low pressure chamber partition 48 of hydraulic cavities cylinder barrel 47
Region between outer wall is the low pressure chamber of gear servomechanism 5；By two rubber seal ring II61 by low pressure chamber partition 48 with
It is sealed between gear servomechanism upper housing 36 and gear servomechanism lower case 46；
High pressure chest partition 55 is the steel tube kind part of upper and lower ends opening, and cross section is the semicircle being open to the right, half
There is straight arm plate up and down at round both-side opening end respectively, has a circular hole respectively at the straight arm plate center of upper and lower ends, should
Circular hole is respectively used to place high pressure chest liquid valve I56 and high pressure chest liquid valve II59.
High pressure chest partition 55 is placed in opening to the right for gear servomechanism upper housing 36 and gear servomechanism lower case 46
In the semi-circular recesses of mouth, the upper and lower ends straight arm plate of high pressure chest partition 55 is placed in hydraulic cavities cylinder barrel 47 just respectively at this time
It has placed in two vertical grooves up and down of rubber seal ring III60, inner wall and the high pressure chest partition 55 of hydraulic cavities cylinder barrel 47
Region between outer wall is the high pressure chest of gear servomechanism 5, by two rubber seal ring II61 by high pressure chest partition 55 with
It is sealed between gear servomechanism upper housing 36 and gear servomechanism lower case 46；
High pressure chest liquid valve I56 and high pressure chest liquid valve II59 are welded in the straight arm plate of 55 upper and lower ends of high pressure chest partition
Center hole in；
Bearing I V54 is placed in the left side blind round hole of gear servomechanism lower case 46, the external cylindrical surface of bearing I V54
Against blind hole inner cylinder face；Driving shaft 38 is ladder axial workpiece, is divided into two sections, lower section diameter is greater than upper section；Driving shaft 38
Lower section external cylindrical surface abut the inner cylinder face of bearing I V54, with teeth on 52 external cylindrical surface of driving gear, there is through-hole at center；Actively
The central through hole of gear 52 is sleeved on driving shaft 38, is axially fixed in gear servomechanism upper housing 36 and gear servomechanism
Between lower case 46, bearing I II53 is sleeved on the upper end from driving shaft 38, and bearing I II53 passes through 40 axial restraint of pressure ring I, axis
It holds and is sealed between III53 and gear servomechanism upper housing 36 by sealing ring I39.
Bearing I 41 is placed in the right side blind round hole of gear servomechanism upper housing 36, and the external cylindrical surface of bearing I 41 is tight
By blind hole inner cylinder face, driven shaft 42 is ladder axial workpiece, is divided into two sections, upper diameter is greater than lower section；Driven shaft 42
Upper section external cylindrical surface abuts the inner cylinder face of bearing I 41, and with teeth on 43 external cylindrical surface of driven gear, there are through-hole, driven tooth in center
The central through hole of wheel 43 is sleeved on driven shaft 42, is axially fixed under gear servomechanism upper housing 36 and gear servomechanism
Between shell 46, and engaged with driving gear 52；Bearing I I51 is sleeved on the lower end of driven shaft 42, and bearing I I51 passes through pressure ring
II49 axial restraint is sealed between bearing I I51 and gear servomechanism lower case 46 by sealing ring II50；
High pressure oil return mechanism 4 is by high pressure accumulator 28, low pressure accumulator 29, high pressure oil return valve 30, oil return pipe 31, scavenge oil pump
32, motor 33 and low pressure oil return valve 34 form.
High pressure accumulator 28 and low pressure accumulator 29 are common bag type accumulator, are respectively used to storage high pressure and low pressure
Oil liquid.High pressure oil return valve 30 and low pressure oil return valve 34 are bi-bit bi-pass closed type high-speed switch electromagnetic valve, and scavenge oil pump 32 is three
Body plunger pump, motor 33 are direct current generator；
The oil outlet of high pressure oil return valve 30 and 37 phase of high pressure chest fuel feed hole in high pressure accumulator 28 and gear servomechanism 5
Connection, oil inlet are connected by oil return pipe 31 with the oil outlet of scavenge oil pump 32；The oil inlet and low pressure of low pressure oil return valve 34
Accumulator 29 is connected with the low pressure chamber oil outlet 44 in gear servomechanism 5, and oil outlet passes through oil return pipe 31 and scavenge oil pump
32 oil inlet is connected；The output shaft of motor 33 is meshed with the input shaft of scavenge oil pump 32 by gear；
Electronic control unit 9 and decoupling type turn to the conducting wire 13 in simulator 3, the high pressure oil return in high pressure oil return mechanism 4
High pressure chest liquid valve I56, low pressure chamber liquid feed valve in valve 30 and low pressure oil return valve 34 and scavenge oil pump 32, gear servomechanism 5
I57, low pressure chamber liquid feed valve II58, high pressure chest liquid valve II59 control are connected.
With various electronics such as sensors it is opened with steering wheel angle adjustment, igniting inside steering column 2
It closes key, turn to the resident alarm switch of theftproof lock, horn circuit, windscreen wiper, turn signal, key, cruise control and machine of linearly shifting gears
The additional functions such as structure.
Compared with prior art the beneficial effects of the present invention are:
1. a kind of full decoupling line traffic control hydraulic steering system of the present invention is compared to motor servo steering system, motor
Only steering pressure source-high pressure accumulator fluid infusion is eliminated and was turned to using the hydraulic coupling power-assisted steering of high pressure accumulator
System noise problem in journey.
2. a kind of full decoupling line traffic control hydraulic steering system of the present invention is used compared to traditional EPS steering system
Decoupling type, which turns to simulator, realizes the full decoupling of driver and steering system, so that the wire-controlled steering system can be applicable to intelligence
On automobile.
3. when a kind of full decoupling line traffic control hydraulic steering system power-off failure of the present invention, steering wheel and bogie car turbine
Tool connection, driver can realize that failure in emergency circumstances turns to, and improves driving safety by steering wheel rotation at this time.
4. the motor in a kind of full decoupling line traffic control hydraulic steering system of the present invention is only steering pressure source-high pressure
Accumulator fluid infusion, so it is lower to motor performance requirement, the cost of steering system is greatly lowered.
Driver and steering system when 5. a kind of full decoupling line traffic control hydraulic steering system of the present invention works normally
Full decoupling reduces the influence of the impact to driver on road surface, improves driving comfort.
6. a kind of full decoupling line traffic control hydraulic steering system of the present invention using high pressure accumulator as steering power source,
It is controlled using high-speed switch electromagnetic valve and turns to precision, which can preferably improve active steering response speed and corner control essence
Degree.
Detailed description of the invention
Fig. 1 is a kind of main view of full decoupling line traffic control hydraulic steering system of the present invention；
Fig. 2 is the main view that decoupling type turns to simulator in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Cross-sectional view；
Fig. 3 is the section view of the main view of wire support in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Figure；
Fig. 4 is the top view of wire support in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Fig. 5 is the main view of friction plate rubber pad I in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Cross-sectional view；
Fig. 6 is the top view of friction plate rubber pad I in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Fig. 7 is the section view that the main view of meshing gear is moved in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Figure；
Fig. 8 is the top view that meshing gear is moved in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Fig. 9 is the main view of friction plate rubber pad II in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Cross-sectional view；
Figure 10 is the top view of friction plate rubber pad II in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Figure 11 is the main view that simulator gear is turned in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Cross-sectional view；
Figure 12 is the top view that simulator gear is turned in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Figure 13 is the section view of the main view of electromagnetic driven iron in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Figure；
Figure 14 is the top view of electromagnetic driven iron in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Figure 15 is the section view of the main view of the quiet iron of electromagnetism in a kind of full decoupling line traffic control hydraulic steering system of the present invention
Figure；
Figure 16 is the top view of the quiet iron of electromagnetism in a kind of full decoupling line traffic control hydraulic steering system of the present invention；
Figure 17 is a kind of main view of full decoupling line traffic control hydraulic steering system mesohigh oil return mechanism of the present invention；
Figure 18 is a kind of main view of full decoupling line traffic control hydraulic steering system middle gear servomechanism of the present invention
Cross-sectional view；
Figure 19 is in a kind of main view of full decoupling line traffic control hydraulic steering system middle gear servomechanism of the present invention
Cross-sectional view at A-A；
Figure 20 is a kind of master of full decoupling line traffic control hydraulic steering system middle gear servomechanism upper housing of the present invention
The cross-sectional view of view；
Figure 21 is a kind of bowing for full decoupling line traffic control hydraulic steering system middle gear servomechanism upper housing of the present invention
View；
Figure 22 is a kind of master of full decoupling line traffic control hydraulic steering system middle gear servomechanism lower case of the present invention
The cross-sectional view of view；
Figure 23 is a kind of bowing for full decoupling line traffic control hydraulic steering system middle gear servomechanism lower case of the present invention
View；
Appended drawing reference: 1. steering wheels, 2. steering columns, 3. decoupling types turn to simulator, 4. high pressure oil return mechanisms, 5. gears
Servomechanism, 6. pinion-and-rack steering engines, 7. front left wheels, 8. right front wheels, 9. electronic control units, 10. turn to simulator
Electromagnetism shell, 11. attachment screws, 12. rubber sheet gaskets；13. conducting wire；14. wire support；15. driven friction disk rubber pad；16.
Driven friction disk；17. rub cylinder barrel, 18. buffer rubber gaskets；19. dynamic meshing gear；20. steering column；21. active friction plate rubber
Rubber mat, 22. active friction plates；23. turning to simulator gear；24. connecting tube；25. electromagnetic driven iron；26. return spring；27. electricity
The quiet iron of magnetic；28. high pressure accumulator, 29. low pressure accumulators, 30. high pressure oil return valves, 31. oil return pipes, 32. scavenge oil pumps, 33. motors,
34. low pressure oil return valve, 35. fastening bolts, 36. gear servomechanism upper housings, 37. high pressure chest fuel feed holes, 38. driving shafts, 39.
Sealing ring I, 40. pressure ring Is, 41. bearing Is, 42. driven shafts, 43. driven gears, 44. low pressure chamber oil outlets, 45. rubber seal rings
I, 46. gear servomechanism lower cases, 47. hydraulic cavities cylinder barrels, 48. low pressure chamber partitions, 49. pressure ring I I, 50. sealing ring II, 51.
Bearing I I, 52. driving gears, 53. bearing I II, 54. bearing I V, 55. high pressure chest partitions, 56. high pressure chest liquid valve I, 57. is low
Press the high pressure chest liquid valve of chamber liquid feed valve I, 58. low pressure chamber liquid feed valve II, 59. II, 60. rubber seal ring III, 61. rubber seals
Ring II.
Specific embodiment
Technical solution of the present invention is further explained and is illustrated in conjunction with attached drawing in the form of specific embodiment below.
Refering to fig. 1, a kind of full decoupling line traffic control hydraulic steering system of the present invention is by steering wheel 1, steering column 2, solution
Coupling formula turns to simulator 3, high pressure oil return mechanism 4, gear servomechanism 5, pinion-and-rack steering engine 6, front left wheel 7, right front truck
Wheel 8 and electronic control unit 9 form.
The bottom of steering wheel 1 is connected with the upper end of steering column 2, and the main function of steering column 2 is will be on steering wheel 1
Torque passes to decoupling type and turns to simulator 3 or gear servomechanism 5, while having sensor etc. a variety of inside steering column 2
Electronic equipment makes it with steering wheel angle adjustment, ignition key, turns to theftproof lock, horn circuit, windscreen wiper, steering
Lamp, key are resident the additional functions such as alarm switch, cruise control and linear gearshift.
The upper end that decoupling type turns to simulator 3 is connected with the lower end of steering column 2, and decoupling type turns to the lower end of simulator 3
With may choose whether to be connected with the upper end of gear servomechanism 5.On the one hand the effect that decoupling type turns to simulator 3 is in line traffic control
It is in the case that steering system works normally, the operation of driver and wheel steering system is full decoupled in mechanical structure, solution
Coupling formula turns to simulator 3 and steering wheel is connected with simulator is turned to, and provides steering feel simulation for driver, reduces road surface
Influence of the impact to driver, improve driving comfort.On the other hand, it in the case where wire-controlled steering system power loss, protects
The mechanical connection between driver and wheel steering system is held, so that wire-controlled steering system has the function of fail safe.High pressure
The high-voltage end and low-pressure end of oil return mechanism 4 are connected with the high pressure chest of gear servomechanism 5 and low pressure chamber respectively, effect be by
The oil liquid of low pressure accumulator internal reservoir is pumped back to inside high pressure accumulator, is high pressure accumulator fluid infusion, so that gear booster engine
The high pressure chest of structure 5 and the pressure difference of low pressure chamber are maintained in constant range.The lower end of gear servomechanism 5 and rack-and-pinion turn to
The upper end of machine 6 connects, and the left and right ends of pinion-and-rack steering engine 6 pass through steering linkage and front left wheel 7 and right front wheel 8 respectively
It is connected, the upper end of pinion-and-rack steering engine 6 is gear, lower end is rack gear, and pinion-and-rack steering engine 6 can be by gear servomechanism 5
The rotary motion of driven shaft 42 be converted into the linear motion of rack gear.
Electronic control unit 9 passes through the high-speed switch electricity in conducting wire and decoupling type steering simulator 3, high pressure oil return mechanism 4
Magnet valve is connected with the high-speed switch electromagnetic valve in plunger pump, gear servomechanism 5.The effect of electronic control unit 9 is by driving
The person's of sailing intention assessment, driving cycle, the judgement of environment and the estimation of vehicle body driving status turn to simulator 3, high pressure to decoupling type
The high-speed switch electromagnetic valve in high-speed switch electromagnetic valve and plunger pump, gear servomechanism 5 in oil return mechanism 4 passes to phase respectively
The electric current answered realizes closed-loop control to control the movement of each components and receive the action state signal of each part.
Referring to Fig.2, decoupling type turns to simulator 3 by steering simulator electromagnetism shell 10, attachment screw 11, rubber sheet gasket
12, conducting wire 13, wire support 14, driven friction disk rubber pad 15, driven friction disk 16, friction cylinder barrel 17, buffer rubber gasket 18,
Dynamic meshing gear 19, active friction plate rubber pad 21, active friction plate 22, turns to simulator gear 23, connecting tube at steering column 20
24, electromagnetic driven iron 25, return spring 26 and the quiet iron 27 of electromagnetism form.On the one hand the effect that decoupling type turns to simulator 3 is online
It is in the case where controlling steering system normal work, the operation of driver and wheel steering system is full decoupled in mechanical structure,
Decoupling type turns to simulator 3 and steering wheel is connected with simulator is turned to, and provides steering feel simulation for driver, reduces road
Influence of the impact in face to driver, improves driving comfort.On the other hand, in the case where wire-controlled steering system power loss,
The mechanical connection between driver and wheel steering system is kept, so that wire-controlled steering system has the function of fail safe.
The sleeve part that simulator electromagnetism shell 10 is upward opening is turned to, sleeve openings end has and 2 phase of steering column
The internal screw thread of connection, sleeve have concentric pylone on bottom surface, in the interior cylinder of the concentric pylone and steering simulator electromagnetism shell 10
There are 8 circumferentially equally distributed small through hole between face.Attachment screw 11 is the general hex screw of national standard.Rubber sheet gasket 12 is
Rubber part, there is concentric pylone, plays the role of being fastenedly connected screw 11.Conducting wire 13 is copper conductor, and winding the number of turns is
400 to 600 circles.Driven friction disk 16 and active friction plate 22 are macromolecule trielement composite material, are cyclic annular class part.Friction
Cylinder barrel 17 is the cylindrical part of the wear-resisting steel material of upper and lower opening, and main function is to make 16 uniform force of driven friction disk.
Buffer rubber gasket 18 is plantation rubber ring parts, and cross section is in " recessed " shape being open to the center of circle, and main function is anti-stop
The upper surface of meshing gear 19 and the lower end surface for turning to simulator electromagnetism shell 10 collide and generate noise.Steering column 20 is
The sleeve part of upward opening has internal tooth on sleeve inner cylinder face.Connecting tube 24 is common steel tube, have on external cylindrical surface with
The external screw thread of dynamic meshing gear 19 and electromagnetic driven iron 25 matched.Return spring 26 is steel coil springs.
Refering to Fig. 3, Fig. 4, wire support 14 is the sleeve part of upper and lower ends opening, is had on external cylindrical surface biggish
Annular groove, the groove are used to wind conducting wire 13.The upper and lower end face of wire support 14 have respectively in outside cylinder 8 circumferentially
Equally distributed small through hole, the through-hole pass through the annular groove on 14 external cylindrical surface of wire support.The conducting wire branch of wire support 14
The inner cylinder face of frame 14 is internal gear；
Refering to Fig. 5, Fig. 6, driven friction disk rubber pad 15 is plantation rubber ring parts, and " bow " is presented in cross section both ends
Shape, the outer ring of driven friction disk rubber pad 15 are embedded into the annular groove of 17 inside of friction cylinder barrel, driven friction disk rubber pad
Driven friction disk 16 is embedded in 15 inner ring.The effect of driven friction disk rubber pad 15 is fixed driven friction disk 16 and buffers vibration
It is dynamic.
Refering to Fig. 7, Fig. 8, there is external tooth on the external cylindrical surface of dynamic meshing gear 19, the inside of dynamic meshing gear 19 has logical with one heart
On the upper surface for moving meshing gear 19, there is section Wei " Yin in hole between concentric pylone and external tooth " annular groove of shape, the groove
For placing buffer rubber gasket 18.
Refering to Fig. 9, Figure 10, active friction plate rubber pad 21 is similar with driven friction disk rubber pad 15, both for rubber
" bow " shape is presented in circle ring parts, cross section both ends, and the inner ring of active friction plate rubber pad 21, which is embedded into, turns to simulator tooth
In the annular groove in 23 outside of wheel, active friction plate 22 is embedded in the outer ring of active friction plate rubber pad 21.Active friction plate rubber
The effect of rubber mat 21 is fixed active friction plate 22 and buffering vibration.
1, Figure 12 refering to fig. 1, turning on the interior cylinder of simulator gear 23 has the internal tooth matched with dynamic meshing gear 19,
There is the annular groove matched with active friction plate rubber pad 21 on external cylindrical surface.
3, Figure 14 refering to fig. 1, the material of electromagnetic driven iron 25 are ingot iron, are had and wire support 14 on external cylindrical surface
The external tooth that internal tooth matches, electromagnetic driven iron 25 has concentric pylone, has on through-hole wall and matches with the external screw thread of connecting tube 24
Internal screw thread.
5, Figure 16 refering to fig. 1, the quiet iron 27 of electromagnetism are flange disk-like accessory, and material is ingot iron, and the quiet iron 27 of electromagnetism is in
Flat head screw shape, screw cap upper, head of screw under, have near the external cylindrical surface close to screw cap 8 circumferentially uniformly
The aperture of distribution has internal screw thread in hole.
Assembly relation, referring to Fig.2, the annular that the outer ring of driven friction disk rubber pad 15 is embedded into 17 inside of friction cylinder barrel is recessed
In slot, driven friction disk 16 is embedded in the inner ring of driven friction disk rubber pad 15.The inner ring of active friction plate rubber pad 21 is embedded in
Into the annular groove for turning to 23 outside of simulator gear, active friction plate is embedded in the outer ring of active friction plate rubber pad 21
22.It turns to simulator gear 23 to be completely disposed in the cylinder of friction cylinder barrel 17, driven friction disk 16 and active friction plate 22 form one
Secondary to friction, the frictional force of the two time is determined by coefficient of friction and normal pressure, which is that driver provides steering mould
Quasi- power.
Conducting wire 13 is wound into the groove of 14 external cylindrical surface of wire support, and winding the number of turns is 400 to 600 circles.Wire support
14 external cylindrical surface diameter is equal with the inner cylinder face diameter of simulator electromagnetism shell 10 is turned to, wire support 14 and the quiet iron of electromagnetism
27 be completely disposed at turn to simulator electromagnetism shell 10 cylinder in, and 8 circumference apertures on 14 bottom end face of wire support with turn
To 8 circumference apertures aligns of 10 bottom of simulator electromagnetism shell.8 attachment screws 11 from turn to 10 bottom of simulator electromagnetism shell
Portion, which hammers into, is fixed together wire support 14 and steering simulator electromagnetism shell 10.Electromagnetic driven iron 25 is located at wire support 14
In sleeve, the internal tooth in 14 sleeve of wire support is matched with the external tooth of electromagnetic driven iron 25.25 return spring of electromagnetic driven iron 26
In in the sleeve of wire support 14, the upper end of return spring 26 is resisted against the lower end surface of the quiet iron 27 of electromagnetism, under return spring 26
End is resisted against the upper surface of electromagnetic driven iron 25.The screw cap lower end surface of the quiet iron 27 of electromagnetism is resisted against the upper surface of wire support 14,
And the two circumferentially equally distributed 8 apertures aligns.8 attachment screws 11 are circumferentially uniform from quiet 27 8, the top of iron of electromagnetism
The aperture of distribution hammers into, and the quiet iron 27 of electromagnetism, wire support 14 and steering simulator electromagnetism shell 10 are fixed together.It will buffering
Rubber pad 18 is in that " recessed " shape for being open to the center of circle is placed in dynamic 19 upper surface section Wei " Yin of meshing gear by cross section " ring of shape
In connected in star.The upper end of connecting tube 24 is threadedly coupled with the central through hole of electromagnetic driven iron 27, the lower end of connecting tube 24 is from steering
After the bottom surface concentric pylone of simulator electromagnetism shell 10 is pierced by, again pass through after the concentric pylone for turning to simulator gear 23 with it is dynamic
The central through hole of meshing gear 19 is threadedly coupled.The external tooth of dynamic meshing gear 19 is matched with the internal tooth in 20 sleeve of steering column.
Refering to fig. 17, high pressure oil return mechanism 4 is by high pressure accumulator 28, low pressure accumulator 29, high pressure oil return valve 30, oil return pipe
31, scavenge oil pump 32, motor 33 and low pressure oil return valve 34 form.The effect of high pressure oil return mechanism 4 is to drive oil return by motor 33
The oil liquid of 29 internal reservoir of low pressure accumulator is pumped back to inside high pressure accumulator 28 by pump 32, is 28 fluid infusion of high pressure accumulator, is made
The pressure difference for obtaining high pressure accumulator 28 and low pressure accumulator 29 is maintained in constant range.
High pressure accumulator 28 and low pressure accumulator 29 are common bag type accumulator, effective swept volume and work of the two
Making pressure range can determine according to model, discharge capacity of automobile etc., and the effect of the two is storage high pressure and low pressure oil liquid respectively.High pressure
Oil return valve 30 and low pressure oil return valve 34 are the common bi-bit bi-pass closed type high-speed switch electromagnetic valve in market, and the effect of the two is
High pressure accumulator 28 and 29 internal pressure of low pressure accumulator are isolated with scavenge oil pump 32, avoid high pressure accumulator when working to return
The unnecessary impact of oil pump 32.Oil return pipe 31 is the common copper pipe that internal diameter is 3.2mm.Scavenge oil pump 32 is three-body plunger pump, row
Amount can determine that the function of scavenge oil pump 32 is that the oil liquid blowback inside low pressure accumulator 29 is high according to model, discharge capacity of automobile etc.
It presses inside accumulator 28, so that the two internal pressure difference is maintained in constant range.Motor 33 is direct current generator, and function is band
Dynamic scavenge oil pump 32 rotates.
Assembly relation, refering to fig. 17, the oil outlet of high pressure oil return valve 30 is connected with high pressure accumulator 28, and oil inlet is logical
Oil return pipe 31 is crossed to be connected with the oil outlet of scavenge oil pump 32.The oil outlet of low pressure oil return valve 34 is connected with low pressure accumulator 29,
Its oil inlet is connected by oil return pipe 31 with the oil inlet of scavenge oil pump 32.The output shaft of motor 33 and the input shaft of scavenge oil pump 32
It is meshed by gear.
8, Figure 19 refering to fig. 1, gear servomechanism 5 by fastening bolt 35, gear servomechanism upper housing 36, high pressure chest into
Oilhole 37, driving shaft 38, sealing ring I39, pressure ring I 40, bearing I 41, driven shaft 42, driven gear 43, low pressure chamber oil outlet 44,
Rubber seal ring I45, gear servomechanism lower case 46, hydraulic cavities cylinder barrel 47, low pressure chamber partition 48, pressure ring I I49, sealing ring
II50, bearing I I51, driving gear 52, bearing I II53, bearing I V54, high pressure chest partition 55, high pressure chest liquid valve I56, low pressure
Chamber liquid feed valve I57, low pressure chamber liquid feed valve II58, high pressure chest liquid valve II59, rubber seal ring III60 and rubber seal ring II61
Composition.On the one hand the effect of gear servomechanism 5 is in the case where wire-controlled steering system works normally, oil liquid is from gear power-assisted
The high pressure chest of mechanism 5 passes through high pressure chest liquid valve I56 (or high pressure chest liquid valve II59) and low pressure chamber liquid feed valve I57 (or low pressure
Chamber liquid feed valve II58) low pressure chamber of gear servomechanism 5 is flowed into, and driving gear 52 and driven gear 43 is driven to rotate, it is driven
Gear 43 completes the steering behaviour of front left wheel 7, right front wheel 8 by driven shaft 42, pinion-and-rack steering engine 6 and steering linkage
Make.The effect of the another aspect of gear servomechanism 5 is when the failure of line traffic control hydraulic steering system, so that steering wheel 1 and gear
Rack steering machine 6 keeps mechanical connection, i.e. driver can complete turn of front left wheel 7 and right front wheel 8 by manipulation direction disk
To operation, so that a kind of full decoupling line traffic control hydraulic steering system of the present invention has the function of fail safe.
Fastening bolt 35 is the general hex bolts of national standard.Sealing ring I39 and sealing ring II50 is circular rubber zero
Part.Pressure ring I 40 and pressure ring I I49 are the common circular metal part in market.Bearing I 41, bearing I I51, bearing I II53 and
Bearing I V54 is the common ball bearing in market.Driving shaft 38 is forging class ladder axial workpiece, is divided into two sections, lower section is straight
Diameter is greater than upper section.Driven shaft 42 is forging class ladder axial workpiece, is divided into two sections, upper diameter is greater than lower section.Driven gear
43 and driving gear 52 be gear part, with teeth on external cylindrical surface, there is through-hole at center.Rubber seal ring I45 is cyclic annular rubber
Glue class part, outer profile is consistent with the dish type Internal periphery in gear servomechanism upper housing 36, and on gear servomechanism
The annular groove that the dish type Internal periphery edge of shell 36 is downwardly open matches.Hydraulic cavities cylinder barrel 47 is the steel of upper and lower ends opening
Tube kind part, cross-sectional profiles shape is consistent with the dish type Internal periphery in gear servomechanism upper housing 36, is controlling two
Semicircle and four interfaces of rectangle have along steel cylinder wall up and down and four grooves of vertical distribution.Low pressure chamber partition 48 is upper and lower
The steel tube kind part of both ends open, cross section are the semicircle being open to the left, semicircle both-side opening end have respectively upwards and
Downward straight arm plate has a circular hole at the straight arm plate center of upper and lower ends respectively, which is respectively used to place low pressure chamber feed liquor
Valve I57 and low pressure chamber liquid feed valve II58.High pressure chest partition 55 is the steel tube kind part of upper and lower ends opening, and cross section is to the right
There is a straight arm plate up and down at the semicircle of opening, semicircle both-side opening end respectively, at the straight arm plate center of upper and lower ends
There is a circular hole respectively, which is respectively used to place high pressure chest liquid valve I56 and high pressure chest liquid valve II59.High pressure chest liquid valve
I56, low pressure chamber liquid feed valve I57, low pressure chamber liquid feed valve II58 and high pressure chest liquid valve II59 are the common bi-bit bi-pass in market
Closed type high-speed switch electromagnetic valve.Rubber seal ring III60 is strip rubber part, and cross section is in " several " shape.Rubber is close
Seal ring II61 is rubber part, and outer profile is consistent with the cross section of high pressure chest partition 55.
Refering to Figure 20, Figure 21, gear servomechanism upper housing 36 is downwardly open disk-like accessory, and outer profile is by left and right
The identical semicircle of two radiuses and intermediate rectangle connect composition, and the center of circle of two semicircles and the unfaithful intention of rectangle are in same straight line
On.The dish type Internal periphery of gear servomechanism upper housing 36 is consistent with outer contour shape, and the center of circle of two profiles is overlapped, lubrication groove
Wide undersized.Gear servomechanism upper housing 36 is uniformly distributed 12 through-holes, through-hole wall between outer profile and Internal periphery
On have the internal screw thread matched with fastening bolt 35.Outer profile left side semicircle the center point has a concentric ladder hole, on ladder hole
Radius is held to be greater than lower end radii.Outer profile right side semicircle the center point has concentric blind hole, in the blind hole internal diameter and ladder hole lower end
Diameter is identical.There is downwardly open annular groove along the dish type Internal periphery edge of gear servomechanism upper housing 36, which uses
In placement hydraulic cavities cylinder barrel 47.Outer profile arranged on left and right sides semicircle the center point has downwardly open concentric left semicircle connected in star respectively
With right semicircular groove, the end of two semi-circular recesses has the straight line for extending to dish type Internal periphery edge annular groove recessed
Slot.Having an internal diameter between dish type Internal periphery edge annular groove and concentric left semicircle connected in star is the round small through hole of 5mm, should
Through-hole is high pressure chest fuel feed hole 37.Also there is an internal diameter between dish type Internal periphery edge annular groove and concentric right semicircular groove
For the round small through hole of 5mm, which is low pressure chamber oil outlet 44.High pressure chest fuel feed hole 37, low pressure chamber oil outlet 44 and two
The center of circle of outer profile is on the same line.
Refering to Figure 22, Figure 23, gear servomechanism lower case 46 is the disk-like accessory of upward opening, geomery with
Gear servomechanism upper housing 36 around center rotate 180 ° after it is consistent, unique difference be gear servomechanism lower case 46 relative to
Gear servomechanism upper housing 36 does not have high pressure chest fuel feed hole 37 and low pressure chamber oil outlet 44.Therefore, no longer gear is helped herein
The structure of force mechanisms lower case 46 is repeated.
Assembly relation, rubber seal ring I45 and hydraulic cavities cylinder barrel 47 are sequentially placed in gear servomechanism lower case 46
In the annular groove of Internal periphery edge.Four rubber seal ring III60 are respectively placed on 47 inner wall of hydraulic cavities cylinder barrel
In four vertical grooves.High pressure chest liquid valve I56 and high pressure chest liquid valve II59 are welded on about 55 high pressure chest partition respectively
In center hole in the straight arm plate at both ends, and ensure that leakproofness is good.Respectively by low pressure chamber liquid feed valve I57 and low pressure chamber feed liquor
Valve II58 is welded in the center hole in the straight arm plate of 48 upper and lower ends of low pressure chamber partition, and ensures that leakproofness is good.By rubber
Glue sealing ring II61 and high pressure chest partition 55 are sequentially placed semicircle recessed in being open to the right for gear servomechanism lower case 46
In slot, at this time the upper and lower ends straight arm plate of high pressure chest partition 55 be placed in just respectively hydraulic cavities cylinder barrel 47 the rubber of placement it is close
In two vertical grooves up and down of seal ring III60, the area between the inner wall of hydraulic cavities cylinder barrel 47 and the outer wall of high pressure chest partition 55
Domain is the high pressure chest of gear servomechanism 5.Another rubber seal ring II61 and low pressure chamber partition 48 are sequentially placed in gear
In the semi-circular recesses of servomechanism lower case 46 being open to the left, the upper and lower ends straight arm plate of low pressure chamber partition 48 is distinguished at this time
Just it is placed in two vertical grooves of the residue for having placed rubber seal ring III60 of hydraulic cavities cylinder barrel 47, hydraulic cavities cylinder barrel
Region between 47 inner wall and the outer wall of low pressure chamber partition 48 is the low pressure chamber of gear servomechanism 5.Bearing I V54 and active
The lower section of axis 38 is placed in the left side blind round hole of gear servomechanism lower case 46, and the external cylindrical surface of bearing I V54 is against blind
Hole inner cylinder face, the lower section external cylindrical surface of driving shaft 38 abuts the inner cylinder face of bearing I V54, by driving gear 52 and bearing
III53 is successively inserted in from the upper end of driving shaft 38.
The annular that another rubber seal ring I45 is placed in the Internal periphery edge of gear servomechanism upper housing 36 is recessed
In slot.By two rubber seal ring II61 of residue be respectively placed in gear servomechanism upper housing 36 to right and left be open
In two semi-circular recesses.The right side that the upper section of bearing I 41 and driven shaft 42 is placed in gear servomechanism upper housing 36 is round
In blind hole, the external cylindrical surface of bearing I 41 abuts blind hole inner cylinder face, and the upper section external cylindrical surface of driven shaft 42 is against bearing I 41
Driven gear 43 and bearing I I51 are successively inserted in from the lower end of driven shaft 42 by inner cylinder face.
By the gear servomechanism upper housing 36 assembled from upper end cover to the gear servomechanism lower case 46 assembled
On, the upper end of driving shaft 38 is pierced by out of gear servomechanism upper housing 36 PATENT left side via, and the lower end of driven shaft 42 is from gear
It is pierced by the right side through-hole of servomechanism lower case 46.The upper end of hydraulic cavities cylinder barrel 47 is located at gear servomechanism upper housing at this time
In 36 groove for having placed rubber seal ring I45, the upper end of high pressure chest partition 55 is located at gear servomechanism upper housing 36
It has placed in the groove of rubber seal ring II61 being open to the right, the upper end of low pressure chamber partition 48 is located at gear servomechanism upper casing
In the groove being open to the left for having placed rubber seal ring II61 of body 36.By sealing ring I39 and pressure ring I 40 successively from driving shaft
38 upper end is inserted in, and rigid drive shaft 38 allows to rotate freely, and gear, bearing seal are good.By sealing ring II50 and
Pressure ring I I49 is successively inserted in from the lower end of driven shaft 42, and fixed driven shaft 42 allows to rotate freely, and gear, bearing seal
Well.12 fastening bolts 35 are obtained upper surface by gear servomechanism upper housing 36 to be assembled in 12 fixed holes, so that
Gear servomechanism upper housing 36 and gear servomechanism lower case 46 are integrally formed.So far the assembly of gear servomechanism 5 finishes.
The working principle of full decoupling line traffic control hydraulic steering system
1. conventional turn to situation: after driver opens turn signal, System Electronic Control Unit 9 judges that driver will turn
Xiang Shi, electronic control unit 9 are powered to conducting wire 13, and the quiet iron 27 of electromagnetism attracts electromagnetic driven iron 25 upwards, move meshing gear at this time
19 also move upward to therewith with turn to simulator gear 23 internal tooth engage.The operation of driver at this time and wheel steering system
It unites full decoupled in mechanical structure, reduces the influence of the impact to driver on road surface, improve driving comfort.Work as driving
After the operation of member and wheel steering system are full decoupled in mechanical structure, driver turn steering wheel turns to simulator electromagnetism
It drives electromagnetic driven iron 25 to rotate by the internal tooth of wire support 14 when shell 10 rotates, then moves meshing gear 19 and cooperated by gear
Drive and turn to simulator gear 23 and rotate, be embedded at this time turn to active friction plate 22 on simulator gear 23 with from dynamic friction
Relative friction occurs for piece 16, generates force of sliding friction as driver and provides steering feel simulation.
1) automobile turns to the right: electronic control unit 9 is powered to high pressure chest liquid valve I56 and low pressure chamber liquid feed valve II58,
So that two solenoid valves are opened, the highly pressurised liquid inside the high pressure chest of gear servomechanism 5 goes out liquid by high pressure chest at this time
Valve I56 and low pressure chamber liquid feed valve II58 flows into the low pressure chamber of gear servomechanism 5, makes driving gear during liquid flowing
52 and driving shaft 38 turn right, driven gear 43 and driven shaft 42 turn left.Driven shaft 42 passes through the gear in pinion-and-rack steering engine 6
Rackwork makes steering linkage move right front left wheel 7 is pulled to turn to the right, at the same steering linkage push right front wheel 8 to
Move right the operation for completing automobile Turning travel to the right.
2) automobile turns to the left: electronic control unit 9 is powered to high pressure chest liquid valve II59 and low pressure chamber liquid feed valve I57,
So that two solenoid valves are opened, the highly pressurised liquid inside the high pressure chest of gear servomechanism 5 goes out liquid by high pressure chest at this time
Valve II59 and low pressure chamber liquid feed valve I57 flows into the low pressure chamber of gear servomechanism 5, makes driving gear during liquid flowing
52 and driving shaft 38 turn left, driven gear 43 and driven shaft 42 are turned right.Driven shaft 42 passes through the gear in pinion-and-rack steering engine 6
Rackwork make steering linkage be moved to the left push front left wheel 7 turn to the left, while steering linkage pull right front wheel 8 to
Move left the operation for completing automobile Turning travel to the left.
3) automobile straight-line travelling: go to action, high pressure chest liquid valve I56, high pressure chest liquid valve do not occur for automobile at this time
II59, low pressure chamber liquid feed valve I57 and the equal no power of low pressure chamber liquid feed valve II58, steering linkage are maintained at middle position.
2. high pressure accumulator fluid infusion situation: when hydraulic coupling inside high pressure accumulator 28 is less than pre-determined threshold pressure value or
When hydraulic coupling inside low pressure accumulator 29 is greater than pre-determined threshold pressure value, electronic control unit 9 gives motor 33, high pressure oil return valve
30 and low pressure oil return valve 34 be powered, motor 33 drive scavenge oil pump 32 rotate, the liquid inside low pressure accumulator 29 is successively passed through
Inside 30 blowback high pressure accumulator 28 of low pressure oil return valve 34, scavenge oil pump 32 and high pressure oil return valve.When 28 inside liquid of high pressure accumulator
When hydraulic coupling when pressure is greater than pre-determined threshold pressure value or inside low pressure accumulator 29 is less than pre-determined threshold pressure value, motor
33, high pressure oil return valve 30 and low pressure oil return valve 34 power off, and complete high pressure accumulator fluid infusion operation.
3. failure turns to situation: wire-controlled steering system power loss at this time, the equal no power of all electronic control unit；
1) automobile turns to the left: driver turn left steering wheel when successively drive steering column 2, decoupling type turn to simulation
Steering simulator electromagnetism shell 10, wire support 14, electromagnetic driven iron 25, dynamic meshing gear 19, steering column 20 and gear in device 3
Driving shaft 38 and driving gear 52 in servomechanism 5 turn left.Driven gear 43 and driven shaft in gear servomechanism 5
42 are turned right by gear engagement.Pinion-and-rack steering engine 6 is moved to the left steering linkage by gear & rack structure to push away
Dynamic front left wheel 7 turns to the left, while steering linkage pulls right front wheel 8 to be moved to the left the behaviour for completing automobile Turning travel to the left
Make.
2) automobile turns to the right: driver turn right steering wheel when successively drive steering column 2, decoupling type turn to simulation
Steering simulator electromagnetism shell 10, wire support 14, electromagnetic driven iron 25, dynamic meshing gear 19, steering column 20 and gear in device 3
Driving shaft 38 and driving gear 52 in servomechanism 5 turn right.Driven gear 43 and driven shaft in gear servomechanism 5
42 are turned left by gear engagement.Pinion-and-rack steering engine 6 makes steering linkage move right drawing by gear & rack structure
Dynamic front left wheel 7 turns to the right, while steering linkage pushes right front wheel 8 to move right to complete the behaviour of automobile Turning travel to the right
Make.
4. active steering situation: driver does not have a steering wheel rotation, and vehicle electronic control unit 9 according to pavement state and
When vehicle running state judges that automobile needs to occur go to action, on the one hand, electronic control unit 9 is powered to conducting wire 13, electromagnetism
Quiet iron 27 attracts electromagnetic driven iron 25 upwards, moves meshing gear 19 at this time and also moves upward to therewith and turn to simulator gear 23
Internal tooth engage.The operation of driver at this time and wheel steering system are full decoupled in mechanical structure.High pressure chest liquid valve
Need described in when I56, high pressure chest liquid valve II59, low pressure chamber liquid feed valve I57 and low pressure chamber liquid feed valve II58 are turned to according to routine
It is powered, when leftward or rightward steering operation occurs for automobile, steering wheel will not left-right rotation therewith.On the other hand, electronics control
Unit 9 processed is logical to high pressure chest liquid valve I56, high pressure chest liquid valve II59, low pressure chamber liquid feed valve I57 and low pressure chamber liquid feed valve II58
Electricity, go to action needed for pushing front left wheel 7 and right front wheel 8 to complete vehicle, control when specifically turning to the left or to the right
Mode and the conventional left-hand rotation turned in situation and right-hand rotation are consistent, and details are not described herein again.
Claims (5)
1. a kind of full decoupling line traffic control hydraulic steering system, which is characterized in that the system is by steering wheel (1), steering column (2), solution
Coupling formula turns to simulator (3), high pressure oil return mechanism (4), gear servomechanism (5), pinion-and-rack steering engine (6), front left wheel
(7), right front wheel (8) and electronic control unit (9) composition；
The bottom of steering wheel (1) is connected with the upper end of steering column (2), and decoupling type turns to upper end and the steering tube of simulator (3)
The lower end of column (2) is connected, and the lower end that decoupling type turns to simulator (3) is flexibly connected with the upper end of gear servomechanism (5)；
The lower end of gear servomechanism (5) is connect with the upper end of pinion-and-rack steering engine (6), a left side for pinion-and-rack steering engine (6)
Right both ends pass through steering linkage respectively and are connected with front left wheel (7) and right front wheel (8), the upper end of pinion-and-rack steering engine (6)
It is rack gear for gear, lower end, pinion-and-rack steering engine (6) can be by the rotary motion of the driven shaft (42) of gear servomechanism (5)
It is converted into the linear motion of rack gear；High pressure oil return mechanism (4) is connect with gear servomechanism (5), makes gear servomechanism (5)
Pressure difference between high pressure chest and low pressure chamber is kept constant；Electronic control unit (9) and decoupling type turn to simulator (3), high pressure
Oil return mechanism (4) and gear servomechanism (5) control connection；
Wherein, gear servomechanism (5) is by fastening bolt (35), gear servomechanism upper housing (36), high pressure chest fuel feed hole
(37), driving shaft (38), sealing ring I (39), pressure ring I (40), bearing I (41), driven shaft (42), driven gear (43), low pressure
Chamber oil outlet (44), rubber seal ring I (45), gear servomechanism lower case (46), hydraulic cavities cylinder barrel (47), low pressure chamber partition
(48), pressure ring I I (49), sealing ring II (50), bearing I I (51), driving gear (52), bearing I II (53), bearing I V (54),
High pressure chest partition (55), high pressure chest liquid valve I (56), low pressure chamber liquid feed valve I (57), low pressure chamber liquid feed valve II (58), high pressure chest
Liquid valve II (59), rubber seal ring III (60) and rubber seal ring II (61) composition；
Gear servomechanism upper housing (36) is downwardly open disk-like accessory, and outer profile is by two radiuses in left and right identical half
Round and intermediate rectangle connects composition, and the unfaithful intention of the centers of circle of two semicircles and rectangle is on the same line；On gear servomechanism
The dish type Internal periphery of shell (36) is consistent with outer contour shape, and the center of circle of two profiles is overlapped, Internal periphery undersized；Gear
Servomechanism upper housing (36) is uniformly distributed multiple through-holes between outer profile and Internal periphery, has internal screw thread on through-hole wall；Outside
Profile left side semicircle the center point has concentric ladder hole, and ladder hole upper end radius is greater than lower end radii；Outer profile right side semicircle
The center point has concentric blind hole, and the blind hole internal diameter is identical as ladder hole bottom diameter；Along gear servomechanism upper housing (36)
Dish type Internal periphery edge have downwardly open annular groove；Outer profile arranged on left and right sides semicircle the center point has downwardly open respectively
Concentric left semicircle connected in star and right semicircular groove, the end of two semi-circular recesses extends to dish type Internal periphery edge
The straight-line groove of annular groove；There is a circle small logical between dish type Internal periphery edge annular groove and concentric left semicircle connected in star
Hole, the through-hole are high pressure chest fuel feed hole (37)；Between dish type Internal periphery edge annular groove and concentric right semicircular groove
There is a round small through hole, which is low pressure chamber oil outlet (44)；The high pressure chest fuel feed hole (37), low pressure chamber oil outlet
(44) and the center of circle of two outer profiles on the same line；
Gear servomechanism lower case (46) is the disk-like accessory of upward opening, and shape and size are and on gear servomechanism
Shell (36) around center rotate 180 ° after it is consistent, unique difference is gear servomechanism lower case (46) on dish type Internal periphery side
Small through hole is not provided between edge annular groove and concentric left and right semi-circular recesses；
Through-hole between gear servomechanism upper housing (36) and the outer profile and Internal periphery of gear servomechanism lower case (46)
Alignment, is fixed on one for gear servomechanism upper housing (36) and gear servomechanism lower case (46) by fastening bolt (35)
It rises；
On the steel tube kind part that hydraulic cavities cylinder barrel (47) is open for upper and lower ends, cross-sectional profiles shape and gear servomechanism
Dish type Internal periphery in shell (36) is consistent, has along steel cylinder wall up and down simultaneously in two semicircles in left and right and four interfaces of rectangle
Four grooves of vertical distribution；Hydraulic cavities cylinder barrel (47) is mounted under gear servomechanism upper housing (36) and gear servomechanism
In the annular groove of shell (46) Internal periphery edge, and pass through rubber seal ring I (45) for hydraulic cavities cylinder barrel (47) and gear
Contact surface sealing between servomechanism upper housing (36) and gear servomechanism lower case (46)；
Rubber seal ring III (60) is strip rubber part, and cross section is in " several " shape, four rubber seal ring III (60)
It is respectively placed in four vertical grooves on hydraulic cavities cylinder barrel (47) inner wall；
Low pressure chamber partition (48) is the steel tube kind part of upper and lower ends opening, and cross section is the semicircle being open to the left, semicircle
There is straight arm plate up and down at shape both-side opening end respectively, has a circular hole respectively at the straight arm plate center of upper and lower ends, the circle
Hole is respectively used to place low pressure chamber liquid feed valve I (57) and low pressure chamber liquid feed valve II (58)；
Low pressure chamber partition (48) is placed in gear servomechanism upper housing (36) and gear servomechanism lower case (46) to the left
In the semi-circular recesses of opening, the upper and lower ends straight arm plate of low pressure chamber partition (48) is placed in hydraulic cavities cylinder barrel just respectively at this time
(47) in two vertical grooves of residue of the rubber seal ring of placement III (60), the inner wall and low pressure of hydraulic cavities cylinder barrel (47)
Region between the outer wall of chamber partition (48) is the low pressure chamber of gear servomechanism (5)；Pass through two rubber seal ring II (61)
It will be sealed between low pressure chamber partition (48) and gear servomechanism upper housing (36) and gear servomechanism lower case (46)；
High pressure chest partition (55) is the steel tube kind part of upper and lower ends opening, and cross section is the semicircle being open to the right, semicircle
There is straight arm plate up and down at shape both-side opening end respectively, has a circular hole respectively at the straight arm plate center of upper and lower ends, the circle
Hole is respectively used to place high pressure chest liquid valve I (56) and high pressure chest liquid valve II (59)；
High pressure chest partition (55) is placed in gear servomechanism upper housing (36) and gear servomechanism lower case (46) to the right
In the semi-circular recesses of opening, the upper and lower ends straight arm plate of high pressure chest partition (55) is placed in hydraulic cavities cylinder barrel just respectively at this time
(47) in two vertical grooves up and down of the rubber seal ring of placement III (60), the inner wall and high pressure of hydraulic cavities cylinder barrel (47)
Region between the outer wall of chamber partition (55) is the high pressure chest of gear servomechanism (5), passes through two rubber seal ring II (61)
It will be sealed between high pressure chest partition (55) and gear servomechanism upper housing (36) and gear servomechanism lower case (46)；
High pressure chest liquid valve I (56) and high pressure chest liquid valve II (59) is welded on the straight arm plate of high pressure chest partition (55) upper and lower ends
On center hole in；
Bearing I V (54) is placed in the left side blind round hole of gear servomechanism lower case (46), the outside cylinder of bearing I V (54)
Face abuts blind hole inner cylinder face；Driving shaft (38) is ladder axial workpiece, is divided into two sections, lower section diameter is greater than upper section；Actively
The lower section external cylindrical surface of axis (38) abuts the inner cylinder face of bearing I V (54), with teeth, center on driving gear (52) external cylindrical surface
There is through-hole；The central through hole of driving gear (52) is sleeved on driving shaft (38), is axially fixed in gear servomechanism upper housing
(36) between gear servomechanism lower case (46), bearing I II (53) is sleeved on the upper end from driving shaft (38), bearing I II
(53) by pressure ring I (40) axial restraint, pass through sealing ring I between bearing I II (53) and gear servomechanism upper housing (36)
(39) it seals；
Bearing I (41) is placed in the right side blind round hole of gear servomechanism upper housing (36), the external cylindrical surface of bearing I (41)
Against blind hole inner cylinder face, driven shaft (42) is ladder axial workpiece, is divided into two sections, upper diameter is greater than lower section；Driven shaft
(42) upper section external cylindrical surface abuts the inner cylinder face of bearing I (41), and with teeth on driven gear (43) external cylindrical surface, center has logical
Hole, the central through hole of driven gear (43) are sleeved on driven shaft (42), are axially fixed in gear servomechanism upper housing (36)
It is engaged between gear servomechanism lower case (46), and with driving gear (52)；Bearing I I (51) is sleeved on driven shaft (42)
Lower end, bearing I I (51) by pressure ring I I (49) axial restraint, bearing I I (51) and gear servomechanism lower case (46) it
Between by sealing ring II (50) seal.
2. full decoupling line traffic control hydraulic steering system according to claim 1, which is characterized in that high pressure oil return mechanism (4) by
High pressure accumulator (28), low pressure accumulator (29), high pressure oil return valve (30), oil return pipe (31), scavenge oil pump (32), motor (33) and
Low pressure oil return valve (34) composition；
High pressure accumulator (28) and low pressure accumulator (29) are common bag type accumulator, are respectively used to storage high pressure and low pressure
Oil liquid；High pressure oil return valve (30) and low pressure oil return valve (34) are bi-bit bi-pass closed type high-speed switch electromagnetic valve, scavenge oil pump
It (32) is three-body plunger pump, motor (33) is direct current generator；
The oil outlet and the high pressure chest fuel feed hole in high pressure accumulator (28) and gear servomechanism (5) of high pressure oil return valve (30)
(37) it is connected, oil inlet is connected by oil return pipe (31) with the oil outlet of scavenge oil pump (32)；Low pressure oil return valve (34)
Oil inlet is connected with the low pressure chamber oil outlet (44) in low pressure accumulator (29) and gear servomechanism (5), and oil outlet is logical
Oil return pipe (31) is crossed to be connected with the oil inlet of scavenge oil pump (32)；The output shaft of motor (33) and the input shaft of scavenge oil pump (32) are logical
Gear is crossed to be meshed.
3. full decoupling line traffic control hydraulic steering system according to claim 2, which is characterized in that the decoupling type turns to mould
Intend device (3) by steering simulator electromagnetism shell (10), attachment screw (11), rubber sheet gasket (12), conducting wire (13), wire support
(14), driven friction disk rubber pad (15), driven friction disk (16), friction cylinder barrel (17), buffer rubber gasket (18), dynamic engaging tooth
It takes turns (19), steering column (20), active friction plate rubber pad (21), active friction plate (22), turn to simulator gear (23), connection
Manage (24), electromagnetic driven iron (25), return spring (26) and the quiet iron of electromagnetism (27) composition；
Wherein, the sleeve part that simulator electromagnetism shell (10) are upward opening is turned to, sleeve openings end has and steering column
(2) internal screw thread being connected, sleeve have concentric pylone on bottom surface, in the concentric pylone and turn to simulator electromagnetism shell (10)
There are multiple circumferentially equally distributed small through hole between inner cylinder face；
Wire support (14) is the sleeve part of upper and lower ends opening, has biggish annular groove on external cylindrical surface, this is recessed
Slot is used to wind conducting wire (13)；The upper and lower end face of wire support (14) has respectively in outside cylinder multiple to be circumferentially uniformly distributed
Small through hole, the small through hole pass through wire support (14) external cylindrical surface on annular groove；The inner cylinder face of wire support (14)
Equipped with internal tooth；
The quiet iron of electromagnetism (27) is flange disk-like accessory, and the quiet iron of electromagnetism (27) is in flat head screw shape, and upper, head of screw exists screw cap
Under, there are multiple circumferentially equally distributed apertures near the external cylindrical surface close to screw cap, has internal screw thread in hole；
There is the external tooth matched with the internal tooth of wire support (14) on the external cylindrical surface of electromagnetic driven iron (25), electromagnetic driven iron (25) has
Concentric pylone has the internal screw thread matched with the external screw thread of connecting tube (24) on through-hole wall；
The external cylindrical surface diameter of wire support (14) is equal with the inner cylinder face diameter of simulator electromagnetism shell (10) is turned to, conducting wire
Bracket (14) and the quiet iron of electromagnetism (27) are completely disposed in the cylinder for turning to simulator electromagnetism shell (10), and wire support (14) lower end
Small through hole on face is aligned with simulator electromagnetism shell (10) lower circumference small through hole is turned to, by attachment screw (11) from steering
Simulator electromagnetism shell (10) bottom, which hammers into, is fixed together wire support (14) and steering simulator electromagnetism shell (10)；Electricity
The screw cap lower end surface of the quiet iron of magnetic (27) is resisted against the upper surface of wire support (14), small logical on wire support (14) upper surface
Apertures align on hole and the quiet iron of electromagnetism (27) screw cap, by attachment screw (11) from small on the quiet iron of electromagnetism (27) screw cap
Hole hammers into, and the quiet iron of electromagnetism (27) and wire support (14) are fixed together, and is fastened by rubber sheet gasket (12)；
Electromagnetic driven iron (25) is located in the sleeve of wire support (14), the internal tooth in wire support (14) sleeve and electromagnetic driven iron
(25) external tooth matches；Return spring (26) is located in the sleeve of wire support (14), the upper end of return spring (26) against
In the lower end surface of the quiet iron of electromagnetism (27), the lower end of return spring (26) is resisted against the upper surface of electromagnetic driven iron (25)；And pass through rubber
Glue gasket (12) fastening；
Rub the cylindrical part that cylinder barrel (17) are upper and lower opening, and inside is machined with annular groove；Driven friction disk (16) and
Active friction plate (22) is rubber annular element；Driven friction disk rubber pad (15) is plantation rubber ring parts, cross section two
Arch is presented in end, and the outer ring of driven friction disk rubber pad (15) is embedded into the annular groove on the inside of friction cylinder barrel (17), driven
Driven friction disk (16) are embedded in the inner ring of friction plate rubber pad (15)；
Turning to simulator gear (23) is internal gear, and outside is machined with annular groove；Active friction plate rubber pad (21) is rubber
Glue justifies ring parts, and " bow " shape is presented in cross section both ends, and the inner ring of active friction plate rubber pad (21) is embedded into steering simulation
In annular groove on the outside of device gear (23), active friction plate (22) are embedded in the outer ring of active friction plate rubber pad (21)；Turn
It is installed on to simulator gear (23) in the cylinder of friction cylinder barrel (17), forms driven friction disk (16) and active friction plate (22)
Friction pair；
Buffer rubber gasket (18) is annular shape, and cross section is in " recessed " shape being open to the center of circle；The outer circle of dynamic meshing gear (19)
There is external tooth on cylinder, there is concentric pylone in the inside of dynamic meshing gear (19), on the upper surface for moving meshing gear (19), is leading to one heart
Have section Wei " Yin between hole and external tooth " annular groove of shape, which is used to place buffer rubber gasket (18)；
Steering column (20) is the sleeve part of upward opening, has internal tooth on sleeve inner cylinder face；The outside cylinder of connecting tube (24)
Have on face and the external screw thread of dynamic meshing gear (19) and electromagnetic driven iron (25) matched.
4. full decoupling line traffic control hydraulic steering system according to claim 3, which is characterized in that electronic control unit (9) with
Decoupling type turns to the conducting wire (13) in simulator (3), high pressure oil return valve (30) and low pressure oil return valve in high pressure oil return mechanism (4)
(34) and the high pressure chest liquid valve I (56) in scavenge oil pump (32), gear servomechanism (5), low pressure chamber liquid feed valve I (57), low pressure
Chamber liquid feed valve II (58), high pressure chest liquid valve II (59) control are connected.
5. full decoupling line traffic control hydraulic steering system described in any one according to claim 1~4, which is characterized in that steering tube
Hall contactless torque rotary angle transmitter is installed inside column (2).
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| CN112744291A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Hydraulic motor and steering column with same |
| CN114312969A (en) * | 2020-09-30 | 2022-04-12 | 比亚迪股份有限公司 | Steering column assembly, steering column and vehicle |
| US11958542B2 (en) | 2019-10-25 | 2024-04-16 | Byd Company Limited | Clutch mechanism, steering system, and automobile |
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