CN107140016A - A kind of double-front axle automobile steering system - Google Patents
A kind of double-front axle automobile steering system Download PDFInfo
- Publication number
- CN107140016A CN107140016A CN201710362484.8A CN201710362484A CN107140016A CN 107140016 A CN107140016 A CN 107140016A CN 201710362484 A CN201710362484 A CN 201710362484A CN 107140016 A CN107140016 A CN 107140016A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- servo
- propons
- steering gear
- hand rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/16—Arrangement of linkage connections
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention relates to a kind of double-front axle automobile steering system, including steering gear, plumbing arm, the first propons Drag link, transitional pull rod, servo-cylinder assembly, the second propons Drag link, the first propons and the second propons；Steering gear is installed on longitudinal beam by steering gear bracket, and the upper end of plumbing arm is connected with steering gear, and the lower end of plumbing arm is flexibly connected with the front end of transitional pull rod；The rear end of transitional pull rod is flexibly connected with servo-cylinder assembly；The front end of first propons Drag link is flexibly connected with servo-cylinder assembly, and rear end is flexibly connected with the first propons；The front end of second propons Drag link is flexibly connected with the first propons, and rear end is flexibly connected with the second propons.Servo-cylinder assembly in the technical program can provide power steering, and the effect of transition rocker arm can be served as again；Servo-cylinder can bear bigger pressure without using piston rod, servo-cylinder, so that bigger steering moment is exported, and life-span height, good reliability.
Description
Technical field
The invention belongs to automobile steering system technical field, a kind of double-front axle automobile steering system is particularly related to.
Background technology
The automobile that double-front axle is turned to refers to the automobile with two steeraxles, a steeraxle, institute more than single propons car
Can carry more load-carryings, with the national economic development, double-front axle car of turning direction turns into the development trend of road transport vehicle.
It is as shown in Figure 1 the double-front axle automobile steering system schematic diagram of prior art, including steering wheel 022, steering column
023rd, steering gear 01, steering gear rocking arm 02, the first propons transitional pull rod 03, the first propons transition arm 04, the first propons Drag link
05th, servo-cylinder 06, power-assisted jar support 07, the first front axle steering knuckle arm 08, the second propons Drag link 010, the second front axle steering knuckle
Arm 011, the first propons 09, the second propons 012, the first front axle steering knuckle 013 and the second front axle steering knuckle 014.
As shown in Fig. 2 also include hydraulic booster pipe-line system in the steering system, including oil storage tank 015, oil storage tank are fuel-displaced
Pipe 016, oil pump 017, steering gear oil inlet pipe 018, steering gear flowline 019, servo-cylinder left-hand rotation oil pipe 020 and servo-cylinder turn right into
Oil pipe 021.The dynamic oil that turns in oil storage tank is supplied to steering gear by oil pump, and provides power steering.
In the steering of prior art, no matter how servo-cylinder is arranged, uses existing structure to be required to as servo-cylinder
Reserved larger installing space and space, the arrangement on vehicle are more difficult.
Power-assisted cylinder piston rod abuts dust cover to completely cut off with the external world, when dust cover fails, and impurity easily enters inside servo-cylinder
Cause seal failure, the increase of servo-cylinder external leakage causes efficiency to reduce.
Need to set extra transition rocker arm by the transform linear motion of servo-cylinder to rotate, it is therefore desirable to part it is more
And it is complicated.
Piston rod can not be born under larger pressure, long-term severe duty, and piston rod is flexible, and the life-span is low.
The content of the invention
It is an object of the invention to provide a kind of double-front axle automobile steering system, to solve to need to reserve larger sky for servo-cylinder
Between and the flexible problem of piston rod.
The present invention is achieved by the following technical solutions：
A kind of double-front axle automobile steering system, including steering gear, plumbing arm, the first propons Drag link, transitional pull rod, servo-cylinder
Assembly, the second propons Drag link, the first propons and the second propons；
The steering gear is installed on longitudinal beam by steering gear bracket, and the upper end of the plumbing arm connects with the steering gear
Connect, the lower end of the plumbing arm is flexibly connected with the front end of the transitional pull rod；
The rear end of the transitional pull rod is flexibly connected with the servo-cylinder assembly；
The front end of the first propons Drag link is flexibly connected with the servo-cylinder assembly, and rear end is lived with first propons
Dynamic connection；
The front end of the second propons Drag link is flexibly connected with first propons, rear end and second propons activity
Connection.
The servo-cylinder assembly is arranged on the longitudinal beam between the steering gear and first propons；
The servo-cylinder assembly includes servo-cylinder and the rocking arm engaged with the servo-cylinder.
The servo-cylinder includes cylinder body and piston, and cylinder body place relative with the rocking arm is provided with opening, the piston
It is movably set in the cylinder body, multiple tooth form grooves is provided with along in the axial side wall of the piston, the part tooth form is recessed
Groove is corresponding with the opening；
The cylinder body is divided into left-hand rotation power-assisted cylinder chamber and right-hand rotation power-assisted cylinder chamber in the piston；
Left-hand rotation oil inlet and right-hand rotation oil inlet, the left-hand rotation oil inlet and the left-hand rotation power-assisted are provided with the cylinder body
Cylinder chamber is connected, and the right-hand rotation oil inlet is connected with the right-hand rotation power-assisted cylinder chamber.
The rocking arm includes rocking arm body and is arranged at the toothed region of the rocking arm body upper end, is set in the toothed region
It is equipped with outer groove, the outer groove and the tooth form engagement.
The rear end of the transitional pull rod is flexibly connected with the lower end of the rocking arm body；Before the first propons Drag link
End is flexibly connected with the lower end of the rocking arm body.
Also include hydraulic booster pipe-line system, the hydraulic booster pipe-line system include oil storage tank, oil storing tube flowline,
Oil pump, steering gear oil inlet pipe, steering gear flowline, servo-cylinder left-hand rotation oil inlet pipe and servo-cylinder right-hand rotation oil inlet pipe；
One end of the oil storing tube flowline is connected with the oil storage tank, and the other end is connected with oil pump oil inlet；Described turn
It is connected to one end of device oil inlet pipe with the oil-out of the oil pump, the other end is connected with the oil inlet of the steering gear；
One end of the steering gear flowline is connected with the oil-out of the steering gear, and the other end is connected with the oil tank；
One end of the servo-cylinder left-hand rotation oil inlet pipe is connected with the left-hand rotation oil inlet, and the other end connects with the steering gear
Connect；One end of the servo-cylinder right-hand rotation oil inlet pipe is connected with the right-hand rotation oil inlet, and the other end is connected with the steering gear.
The beneficial effects of the invention are as follows：
1) the servo-cylinder assembly in the technical program can provide power steering, and the effect of transition rocker arm can be served as again.
2) the servo-cylinder external leakage in the technical program is small, efficiency high.
3) servo-cylinder of the technical program is without using piston rod, and servo-cylinder can bear bigger pressure, so as to export more
Big steering moment, and life-span height, good reliability.
4) hydraulic unit is concentrated on inside servo-cylinder, and servo-cylinder will not be influenceed by introduced contaminants.
5) compact conformation, it is easy for installation, eliminate after the first propons transition arm, the cost reduction of steering.
6) newly-increased servo-cylinder is arranged in front end, shortens the oil circuit between servo-cylinder and steering gear, and arrangement is convenient and drops
It is low dynamic to turn an oily disclosure risk.
Brief description of the drawings
Fig. 1 is prior art double-front axle automobile steering system schematic diagram；
Fig. 2 is prior art double-front axle automobile steering system structure and principle schematic；
Fig. 3 is double-front axle automobile steering system of the present invention and principle schematic；
Fig. 4 is double-front axle automobile steering system primary structure installation drawing of the present invention；
Fig. 5 is Fig. 4 top view；
Fig. 6 is servo-cylinder assembly structure of the present invention and principle schematic.
Description of reference numerals
01 steering gear, 02 steering gear rocking arm, 03 first propons transitional pull rod, 04 first propons transition arm, 05 first propons
Drag link, 06 servo-cylinder, 07 power-assisted jar support, 08 first front axle steering knuckle arm, 09 first propons, 010 second propons Drag link,
011 second front axle steering knuckle arm, 012 second propons, 013 first front axle steering knuckle, 014 second front axle steering knuckle, 015 oil storage
Tank, 016 oil storage tank flowline, 017 oil pump, 018 steering gear oil inlet pipe, 019 steering gear flowline, 020 servo-cylinder left-hand rotation oil-feed
Pipe, 021 servo-cylinder right-hand rotation oil inlet pipe, 022 steering wheel, 023 steering column, 1 steering wheel, 2 steering columns, 3 steering gears, 4 plumbing arms,
5 transitional pull rods, 6 first propons Drag links, 7 servo-cylinder assemblies, 8 second propons Drag links, 9 first propons, 10 second propons, 11
Oil storage tank, 12 oil storage tank flowlines, 13 oil pumps, 14 steering gear oil inlet pipes, 15 steering gear flowlines, 16 servo-cylinder left-hand rotation oil-feeds
Pipe, 17 servo-cylinder right-hand rotation oil inlet pipes, 71 cylinder bodies, 72 pistons, 73 left-hand rotation oil inlets, 74 right-hand rotation oil inlets, 75 rocking arm bodies, 76 teeth
Shape portion, 77 tooth form grooves, 78 openings, 79 outer grooves.
Embodiment
Describe technical scheme in detail by the following examples, following embodiment is exemplary only, only
Explanation and illustration technical scheme can be used for, and be not to be construed as the limitation to technical solution of the present invention.
The application provides a kind of double-front axle automobile steering system, as shown in Figures 3 to 5, the upper end and direction of steering column 2
Disk 1 is connected, and lower end is connected with steering gear 3, and being fixed on by steering gear bracket on vehicle frame for steering gear 3 passes through steering wheel rotation
1, drive steering column 2 to rotate, steering column 2 drives steering gear 3 to act, turn left or turn right to realize.
The output shaft of steering gear 3 is fixedly connected with the upper end of plumbing arm 4, by the rotation of steering gear output shaft, drives plumbing arm 4
Move back and forth, in this application, it is front and rear be the headstock direction using vehicle as front, the direction of the tailstock is rear.
The front end of transitional pull rod 5 is flexibly connected with the lower end of plumbing arm 4, rear end and the activity of servo-cylinder assembly of transitional pull rod 5
Connection, so, with the swing of plumbing arm, drives the synchronous swing of transitional pull rod, and then drive the first propons Drag link
Rotate forward or backward, the left-hand rotation or right-hand rotation of the first propons are driven by the first propons Drag link.
In this application, servo-cylinder assembly 7 is arranged on the longitudinal beam between the propons 9 of steering gear 3 and first, and existing
Technology is compared, and servo-cylinder assembly is arranged in the front of vehicle frame, can provide power steering to the first propons and the second propons simultaneously.
As shown in fig. 6, servo-cylinder assembly 7 includes servo-cylinder and rocking arm, servo-cylinder is engaged with rocking arm tooth form, in the application,
Servo-cylinder includes cylinder body 71 and piston 72, in this application, and cylinder body is structure closed at both ends, and cylinder body place relative with rocking arm is provided with
Opening 78, piston is movably set in cylinder body, and multiple tooth form grooves 77 are provided with along in the axial side wall of piston, and part tooth form is recessed
Groove 77 is corresponding with opening 78；Piston 72 can be movable along the axis of cylinder body in cylinder body 71.
Cylinder body is divided into left-hand rotation power-assisted cylinder chamber and right-hand rotation power-assisted cylinder chamber in piston 72.
Left-hand rotation oil inlet 73 and right-hand rotation oil inlet 74 are provided with cylinder body, left-hand rotation oil inlet connects with left-hand rotation power-assisted cylinder chamber
Logical, right-hand rotation oil inlet is connected with right-hand rotation power-assisted cylinder chamber.It is living when dynamic turn of oil is pressed into left-hand rotation power-assisted cylinder chamber by left-hand rotation oil inlet
Plug is travelled forward, and when dynamic turn of oil is pressed into right-hand rotation power-assisted cylinder chamber by right-hand rotation oil inlet, piston is moved backward, before piston
After move so that tooth form groove 77 on piston side wall is movable relative to opening.
Rocking arm includes rocking arm body 75 and is arranged at the toothed region 76 of rocking arm body upper end, is provided with toothed region 76 outer
Groove 79, outer groove 79 is engaged with tooth form groove 77, when the tooth form groove movement on piston, is driven and is passed through tooth with tooth form groove
The rotation of the toothed region of engagement, and then with the swing of motion rocker arm body, the swing of rocking arm body and plumbing arm it is front and rear
What is swung keeps strokes.
In the technical program, servo-cylinder uses gear (i.e. toothed region) and rack (the tooth form groove i.e. on piston) structure,
Piston rod is eliminated, servo-cylinder exports power steering in the form of moment of torsion.
The front end of transitional pull rod 5 is flexibly connected with plumbing arm, tie point be located at plumbing arm lower end, the rear end of transitional pull rod 5 with
The lower end of rocking arm body 75 is flexibly connected；The front end of first propons Drag link 6 at the lower end of rocking arm body 75 with being flexibly connected, and
The rear end of one propons Drag link 6 is flexibly connected with the first propons 9.So, when rocking arm body swing, the first propons is driven
Drag link moves back and forth；The left-hand rotation or right-hand rotation that move forward and backward the first propons of drive of such first propons Drag link, realization pair
The steering of first propons provides power-assisted.
The front end of second propons Drag link 8 is flexibly connected with the first propons 9, the rear end and second of the second propons Drag link 8
Propons 10 is flexibly connected, when turning, by the swing of rocking arm body, while realizing that the steering to the second propons provides power-assisted.
As shown in figure 3, also including hydraulic booster pipe-line system, hydraulic booster pipe-line system in the steering gear of the technical program
Including oil storage tank 11, oil storing tube flowline 12, oil pump 13, steering gear oil inlet pipe 14, steering gear flowline 15, servo-cylinder turn left into
Oil pipe 16 and servo-cylinder right-hand rotation oil inlet pipe 17.
One end of oil storing tube flowline is connected with oil storage tank, and the other end is connected with oil pump oil inlet；Steering gear oil inlet pipe
The oil inlet of the oil-out connection of one end and oil pump, the other end and steering gear is connected.
One end of steering gear flowline and the oil-out of steering gear are connected, and the other end is connected with oil tank.
One end of servo-cylinder left-hand rotation oil inlet pipe is connected with left-hand rotation oil inlet, and the other end is connected with steering gear；Servo-cylinder is turned right
One end of oil inlet pipe is connected with right-hand rotation oil inlet, and the other end is connected with steering gear.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And deformation, the scope of the present invention extremely equally limits by appended claims.
Claims (6)
1. a kind of double-front axle automobile steering system, it is characterised in that：Drawn including steering gear, plumbing arm, the first propons Drag link, transition
Bar, servo-cylinder assembly, the second propons Drag link, the first propons and the second propons；
The steering gear is installed on longitudinal beam by steering gear bracket, and the upper end of the plumbing arm is connected with the steering gear,
The lower end of the plumbing arm is flexibly connected with the front end of the transitional pull rod；
The rear end of the transitional pull rod is flexibly connected with the servo-cylinder assembly；
The front end of the first propons Drag link is flexibly connected with the servo-cylinder assembly, and rear end connects with first propons activity
Connect；
The front end of the second propons Drag link is flexibly connected with first propons, and rear end connects with second propons activity
Connect.
2. double-front axle automobile steering system according to claim 1, it is characterised in that：The servo-cylinder assembly is arranged at institute
State on the longitudinal beam between steering gear and first propons；
The servo-cylinder assembly includes servo-cylinder and the rocking arm engaged with the servo-cylinder.
3. double-front axle automobile steering system according to claim 2, it is characterised in that：The servo-cylinder includes cylinder body and work
Plug, cylinder body place relative with the rocking arm is provided with opening, and the piston is movably set in the cylinder body, along the piston
Axial side wall on be provided with multiple tooth form grooves, the part tooth form groove is corresponding with the opening；
The cylinder body is divided into left-hand rotation power-assisted cylinder chamber and right-hand rotation power-assisted cylinder chamber in the piston；
Left-hand rotation oil inlet and right-hand rotation oil inlet, the left-hand rotation oil inlet and the left-hand rotation power-assisted cylinder chamber are provided with the cylinder body
Connection, the right-hand rotation oil inlet is connected with the right-hand rotation power-assisted cylinder chamber.
4. double-front axle automobile steering system according to claim 3, it is characterised in that：The rocking arm include rocking arm body and
The toothed region of the rocking arm body upper end is arranged at, outer groove, the outer groove and the tooth are provided with the toothed region
Connected in star is engaged.
5. double-front axle automobile steering system according to claim 4, it is characterised in that：The rear end of the transitional pull rod and institute
The lower end for stating rocking arm body is flexibly connected；The front end of the first propons Drag link and the lower end activity of the rocking arm body connect
Connect.
6. double-front axle automobile steering system according to claim 3, it is characterised in that：Also include hydraulic booster pipeline system
System, the hydraulic booster pipe-line system is fuel-displaced including oil storage tank, oil storing tube flowline, oil pump, steering gear oil inlet pipe, steering gear
Pipe, servo-cylinder left-hand rotation oil inlet pipe and servo-cylinder right-hand rotation oil inlet pipe；
One end of the oil storing tube flowline is connected with the oil storage tank, and the other end is connected with oil pump oil inlet；The steering gear
One end of oil inlet pipe is connected with the oil-out of the oil pump, and the other end is connected with the oil inlet of the steering gear；
One end of the steering gear flowline is connected with the oil-out of the steering gear, and the other end is connected with the oil tank；
One end of the servo-cylinder left-hand rotation oil inlet pipe is connected with the left-hand rotation oil inlet, and the other end is connected with the steering gear；Institute
The one end for stating servo-cylinder right-hand rotation oil inlet pipe is connected with the right-hand rotation oil inlet, and the other end is connected with the steering gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362484.8A CN107140016A (en) | 2017-05-22 | 2017-05-22 | A kind of double-front axle automobile steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362484.8A CN107140016A (en) | 2017-05-22 | 2017-05-22 | A kind of double-front axle automobile steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107140016A true CN107140016A (en) | 2017-09-08 |
Family
ID=59778340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362484.8A Pending CN107140016A (en) | 2017-05-22 | 2017-05-22 | A kind of double-front axle automobile steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107140016A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189024A (en) * | 1978-06-23 | 1980-02-19 | Zahnradfabrik Friedrichshafen Ag | Auxiliary power steering for motor vehicles |
| RU2045434C1 (en) * | 1991-12-25 | 1995-10-10 | Эдуард Владимирович Стоянов | Steering gear of multiaxle all-wheel-drive vehicle |
| JP2005096650A (en) * | 2003-09-25 | 2005-04-14 | Showa Corp | Hydraulic power steering device |
| CN102862604A (en) * | 2012-09-18 | 2013-01-09 | 重庆迪马工业有限责任公司 | Full-hydraulic steering system of double front-axle passenger step |
| WO2013058752A1 (en) * | 2011-10-20 | 2013-04-25 | R.H. Sheppard Co., Inc. | Back driving master steering gear and steering system implementing the steering gear |
| CN104228931A (en) * | 2014-09-06 | 2014-12-24 | 中国第一汽车股份有限公司 | Following steering gear assembly |
| CN106043423A (en) * | 2016-08-18 | 2016-10-26 | 安徽江淮汽车股份有限公司 | Double-front-axle automobile steering system |
| CN106184361A (en) * | 2016-08-18 | 2016-12-07 | 安徽江淮汽车股份有限公司 | A kind of double-front axle automobile steering system |
-
2017
- 2017-05-22 CN CN201710362484.8A patent/CN107140016A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189024A (en) * | 1978-06-23 | 1980-02-19 | Zahnradfabrik Friedrichshafen Ag | Auxiliary power steering for motor vehicles |
| RU2045434C1 (en) * | 1991-12-25 | 1995-10-10 | Эдуард Владимирович Стоянов | Steering gear of multiaxle all-wheel-drive vehicle |
| JP2005096650A (en) * | 2003-09-25 | 2005-04-14 | Showa Corp | Hydraulic power steering device |
| WO2013058752A1 (en) * | 2011-10-20 | 2013-04-25 | R.H. Sheppard Co., Inc. | Back driving master steering gear and steering system implementing the steering gear |
| CN102862604A (en) * | 2012-09-18 | 2013-01-09 | 重庆迪马工业有限责任公司 | Full-hydraulic steering system of double front-axle passenger step |
| CN104228931A (en) * | 2014-09-06 | 2014-12-24 | 中国第一汽车股份有限公司 | Following steering gear assembly |
| CN106043423A (en) * | 2016-08-18 | 2016-10-26 | 安徽江淮汽车股份有限公司 | Double-front-axle automobile steering system |
| CN106184361A (en) * | 2016-08-18 | 2016-12-07 | 安徽江淮汽车股份有限公司 | A kind of double-front axle automobile steering system |
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Application publication date: 20170908 |