CN105774903A - Follow-up steering system used for multi-shaft passenger car - Google Patents
Follow-up steering system used for multi-shaft passenger car Download PDFInfo
- Publication number
- CN105774903A CN105774903A CN201610131962.XA CN201610131962A CN105774903A CN 105774903 A CN105774903 A CN 105774903A CN 201610131962 A CN201610131962 A CN 201610131962A CN 105774903 A CN105774903 A CN 105774903A
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- China
- Prior art keywords
- steering
- pitman arm
- piston
- sides
- cylinder body
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Classifications
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- 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
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
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- 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)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention relates to a follow-up steering system used for a multi-shaft passenger car. A steering rocker arm is installed at the bottom of a car frame. The two sides of the tail of the steering rocker arm are connected with two steering knuckles of a passenger car follow-up axle through two steering pull rods correspondingly. The two sides of the middle of the steering rocker arm are connected with the two sides of the passenger car frame through two steering dampers correspondingly. The two sides of the middle of the steering rocker arm are connected with the two sides of the passenger car frame through two steering locking cylinders correspondingly. The steering locking cylinders are arranged between the steering pull rods and the steering dampers. According to the follow-up steering system used for the multi-shaft passenger car, the follow-up axle is coordinated to change the direction of follow-up axle wheels along with the movement direction of the car frame through the steering rocker arm, so that the direction of the follow-up axle wheels is consistent with that of the passenger car; linkage of the left wheel and the right wheel of the follow-up axle is achieved through the steering pull rods; and sliding of the follow-up axle wheels is changed into rotating by arranging the steering rocker arm and the steering pull rods, accordingly, the friction between the wheels and the ground is reduced, wheel abrasion is relieved, and the service life of the wheels is ensured.
Description
Technical field:
The present invention relates to multiaxis passenger vehicle steering technical field, be specifically related to a kind of multiaxis passenger vehicle slave steering system.
Background technology:
Along with the development of China's automotive engineering, in passenger car field, multiaxis passenger vehicle is increasingly subject to the favor of client by the feature that its loading capacity is big, average fuel consumption is low.nullBut，The servo-actuated vehicle bridge of multiaxis passenger vehicle in the market generally can not active steering，Can only be turn under the drive of passenger vehicle deflecting roller，This steering mode，In passenger vehicle steering procedure，The wheel of servo-actuated vehicle bridge can keep original direction of advance under effect of inertia，Therefore，Now，Turn under the drag interaction of passenger vehicle front-wheel during the rotation of servo-actuated vehicle bridge，Now the wheel direction of servo-actuated vehicle bridge is inconsistent with traction wheel direction，Therefore，Frictional force between wheel and the ground of servo-actuated vehicle bridge is force of sliding friction，Force of sliding friction can cause serious wear of wheel，Serious mill tire phenomenon occurs，Therefore，In order to make the forms of motion of the tire of servo-actuated vehicle bridge be become rolling from slip，Reduce the frictional force of wheel and ground，Alleviate tire wear，Reduce passenger vehicle operating cost，Slave steering system must be increased in the servo-actuated vehicle bridge of multiaxis passenger vehicle，The most structure of slave steering system occurred on existing market is more complicated，Cost is high，And，The locking cylinder adopted in existing multiaxis passenger vehicle slave steering system is all hydraulic cylinder mostly，It is big that hydraulic cylinder has locking power、The advantage that locking is firm，But，Hydraulic cylinder must use hydraulic oil，Relatively costly and easily cause use environment greasy dirt serious.
Summary of the invention:
In sum, in order to overcome the deficiency of prior art problem, the invention provides a kind of multiaxis passenger vehicle slave steering system, this slave steering system coordinates turning to of servo-actuated vehicle bridge left and right wheels by pitman arm, alleviate tire wear, steering damper is set, eliminates in follow-up steering process issuable shimmy, steering, locking cylinder is set and carries out the locking of follow-up steering.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of multiaxis passenger vehicle slave steering system, wherein: include pitman arm, steering damper, steering, locking cylinder and steering linkage, described pitman arm is installed on bottom of frame, pitman arm two sides of tail connects two knuckles of the servo-actuated vehicle bridge of passenger vehicle respectively through two steering linkages, the both sides, middle part of described pitman arm connect the both sides of bus frame respectively through two steering dampers, the both sides, middle part of described pitman arm connect the both sides of bus frame respectively through two steering, locking cylinders, steering, locking cylinder is arranged between steering linkage and steering damper.
Technical scheme it may also is that realize: described pitman arm includes the head of integrative-structure, shoulder, waist and lower limb portion, described head is square structure, the head of pitman arm is hinged is installed on bottom of frame, it it is shoulder under the head of described pitman arm, described shoulder is "eight" shape structure, the hinged shoulder with pitman arm of steering damper, it it is waist under the shoulder of described pitman arm, waist is the pitman arm projection to both sides, steering, locking cylinder is hinged on the waist of pitman arm, it it is lower limb portion under the waist of described pitman arm, leg is two projections that pitman arm is downward, steering linkage is hinged on the leg of pitman arm.
Technical scheme it may also is that realize: described steering, locking cylinder is air pressure locking cylinder, including cylinder body, piston rod, left piston, right piston and jump ring, described cylinder body both sides respectively arrange an air inlet, two air inlets connect same air inlet pipe, the middle part of described cylinder body arranges a gas outlet and jump ring, left piston and right piston are set in cylinder body, left piston and right piston are respectively at the left and right sides of jump ring, described right piston is provided with piston rod, described piston rod is positioned at one end of cylinder body and arranges end plate, right piston is arranged on the right side of end plate, it is provided with groove on the right side of described left piston, the end plate of groove and piston rod cooperates, one end being positioned at outside cylinder body of described piston rod is hinged on the waist of pitman arm.
Technical scheme it may also is that realize: described left piston and right piston are slide block type piston.
Technical scheme it may also is that realize: the cylinder body outer portion that is positioned at of described piston rod is provided with flexible sheath.
Technical scheme it may also is that realize: the left side of described cylinder body arranges connector, cylinder body by connector hinged with on the vehicle frame of passenger vehicle.
The invention have the benefit that
1, the present invention arranges the pitman arm being connected with vehicle frame, pitman arm connects two knuckles of the servo-actuated vehicle bridge of multiaxis passenger vehicle respectively by two steering linkages, servo-actuated vehicle bridge is coordinated along with the servo-actuated vehicle bridge wheel direction of direction of motion change of vehicle frame by pitman arm, servo-actuated vehicle bridge wheel direction is made to keep consistent with passenger vehicle direction, steering linkage realizes the linkage of two wheels about servo-actuated vehicle bridge, the setting of pitman arm and steering linkage, become the wheel skid of servo-actuated vehicle bridge into rotating, thus reaching to reduce the frictional force between wheel and ground, alleviate wheel wear, ensure wheel service life.
2, the setting of the steering damper of the present invention, it is possible to play cushioning effect between pitman arm and vehicle frame, thus eliminating in follow-up steering process issuable shimmy, keeps turning to steadily.
3, the present invention is provided with steering, locking cylinder, and when passenger vehicle is run at high speed, violent swing can occur because of high-speed rotation in the wheel of servo-actuated vehicle bridge, and now, two steering, locking cylinders can clamp pitman arm, it is prevented that occur that servo-actuated vehicle bridge is out of control because of acutely swinging of wheel.And when passenger vehicle is moveed backward, two steering, locking cylinders can clamp pitman arm, and ensure that passenger vehicle straight line car-backing travels, it is to avoid the uncertainty of the travel direction occurred during passenger vehicle reversing.
4, the pitman arm simple in construction, reasonable in design of the present invention, the head connecting vehicle frame of pitman arm, thus ensureing that pitman arm is along with vehicle frame together action, meanwhile, head connecting vehicle frame, it is conveniently steered rocking arm and rotation trend is passed to steering linkage and steering damper, play draw, head connecting vehicle frame, convenient traction, traction effect is good.
5, the steering, locking cylinder of the present invention passes into gases at high pressure by two air inlets simultaneously in cylinder body, gases at high pressure promote left piston and right piston to move in the middle part of cylinder body simultaneously, when left piston and right piston move to jump ring position, left piston and right piston stop motion, gases at high pressure flow out from gas outlet, and piston rod is in lockup state, after the equal locking of piston rod of two steering, locking cylinders, realize the clamping of two steering, locking pole pair pitman arms, it is achieved steering, locking.
6, present configuration is simple, easy to use, it is novel, with low cost to conceive, it is possible to effectively reduce the volume of the hydraulic Lock cylinder of existing passenger vehicle steering, uses environment clean without greasy dirt.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the steering, locking cylinder of the present invention.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is described in further detail.
nullSuch as Fig. 1、Shown in Fig. 2，A kind of multiaxis passenger vehicle slave steering system，Including pitman arm 1、Steering damper 2、Steering, locking cylinder 3 and steering linkage 4，Pitman arm 1 includes the head 6 of integrative-structure、Shoulder 7、Waist 8 and leg 9，Described head 6 is square structure，The head 6 of pitman arm 1 is hinged is installed on bottom of frame，It is shoulder 7 under the head 6 of pitman arm 1，Shoulder 7 is "eight" shape structure，The shoulder 7 of pitman arm 1 connects the both sides of bus frame respectively by two steering dampers 2，One end of steering damper 2 is hinged on the shoulder 7 of pitman arm 1，It is waist 8 under the shoulder 7 of described pitman arm 1，Waist 8 is the pitman arm 1 projection to both sides，Waist 8 connects the both sides of bus frame respectively by two steering, locking cylinders 3，Steering, locking cylinder 3 is hinged on waist 8，It is leg 9 under the waist 8 of pitman arm 1，Leg 9 is two downward projections，The leg 9 of pitman arm 1 connects two knuckles 5 of the servo-actuated vehicle bridge of passenger vehicle respectively through two steering linkages 4.
nullSteering, locking cylinder 3 is air pressure locking cylinder，Including cylinder body 10、Piston rod 11、Left piston 12、Right piston 13 and jump ring 14，Described cylinder body 10 both sides respectively arrange an air inlet 15，Two air inlets 15 connect same air inlet pipe 16，The middle part of described cylinder body 10 arranges a gas outlet 21 and jump ring 14，Left piston 12 and right piston 13 are set in cylinder body 10，Left piston 12 and right piston 13 are slide block type piston，Left piston 12 and right piston 13 are respectively at the left and right sides of jump ring 14，Described right piston 13 is provided with piston rod 11，Described piston rod 11 is positioned at one end of cylinder body 10 and arranges end plate 17，Right piston 13 is arranged on the right side of end plate 17，It is provided with groove 18 on the right side of described left piston 12，The end plate 17 of groove 18 and piston rod 11 cooperates，One end being positioned at outside cylinder body 10 of described piston rod 11 is hinged on the waist 8 of pitman arm 1.Cylinder body 10 outer portion that is positioned at of piston rod 11 is provided with flexible sheath 19, and the left side of cylinder body 10 arranges connector 20, cylinder body 10 by connector 20 hinged with on the vehicle frame of passenger vehicle
During use, when passenger vehicle turns to, pitman arm 1 changes direction with vehicle frame, pitman arm 1 changes the direction of two knuckles 5 of servo-actuated vehicle bridge by steering linkage 4, thus changing the direction of the wheel of servo-actuated vehicle bridge, thus the slip changing wheel is rolling, alleviates the frictional force of wheel and ground, reduce tire wear when turning.The setting of steering damper 2, it is possible to play cushioning effect between pitman arm 1 and vehicle frame, thus eliminating in follow-up steering process issuable shimmy, keeps turning to steadily.And now, two steering, locking cylinders 3 of the present invention do not start.Only steering, locking cylinder 3 does not start, and the pitman arm 1 of the present invention could action.
When passenger vehicle is run at high speed, now can there is violent shimmy phenomenon because of high-speed rotation in the wheel of servo-actuated vehicle bridge, it is violent that shimmy to affect the passenger vehicle run at high speed handling, now, bus controlling system sends signal to steering, locking cylinder 3, gases at high pressure pass through air inlet pipe 16 air inlet, in cylinder body 10, pass into gases at high pressure from two air inlets 15 simultaneously, gases at high pressure promote left piston 12 and right piston 13 to move in the middle part of cylinder body 10 simultaneously, when left piston 12 and right piston 13 move to jump ring 14 position, left piston 12 and right piston 13 stop motion, gases at high pressure are from outflow of giving vent to anger, now, the end plate 17 of piston rod 11 is crushed to death in the groove 18 of left piston 12, end plate 17 is clamped by left piston 12 and right piston 13, thus realizing the locked of piston rod 11.The piston cylinder of two steering, locking cylinders 3 of pitman arm 1 both sides is locking simultaneously, pitman arm 1 is clamped from both sides, the change in any direction cannot be there is in pitman arm 1 now, pitman arm 1 is locked, pitman arm 1 is motionless, then two wheels of servo-actuated vehicle bridge also cannot change direction, thus what eliminate when wheel is run at high speed is shimmy, it is prevented that the out-of-control phenomenon that passenger vehicle occurs because of the acutely shimmy of wheel.
In like manner, when passenger vehicle is moveed backward, two steering, locking cylinders 3 can clamp pitman arm 1, and ensures that passenger vehicle straight line car-backing travels, it is to avoid the uncertainty of the travel direction occurred during passenger vehicle reversing.
To illustrate that, above-described embodiment is illustrative not limiting to technical solution of the present invention, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as not beyond the thinking of technical solution of the present invention and scope, should be included within interest field of the presently claimed invention.
Claims (6)
1. a multiaxis passenger vehicle slave steering system, it is characterized in that: include pitman arm (1), steering damper (2), steering, locking cylinder (3) and steering linkage (4), described pitman arm (1) is installed on bottom of frame, pitman arm (1) two sides of tail connects two knuckles (5) of the servo-actuated vehicle bridge of passenger vehicle respectively through two steering linkages (4), the both sides, middle part of described pitman arm (1) connect the both sides of bus frame respectively through two steering dampers (2), the both sides, middle part of described pitman arm (1) connect the both sides of bus frame respectively through two steering, locking cylinders (3), steering, locking cylinder (3) is arranged between steering linkage (4) and steering damper (2).
null2. multiaxis passenger vehicle slave steering system according to claim 1，It is characterized in that: described pitman arm (1) includes the head (6) of integrative-structure、Shoulder (7)、Waist (8) and leg (9)，Described head (6) is square structure，The head (6) of pitman arm (1) is hinged is installed on bottom of frame，It is shoulder (7) under the head (6) of described pitman arm (1)，Described shoulder (7) is "eight" shape structure，The hinged shoulder (7) with pitman arm (1) of steering damper (2)，It is waist (8) under the shoulder (7) of described pitman arm (1)，Waist (8) for pitman arm (1) to the projection of both sides，Steering, locking cylinder (3) is hinged on the waist (8) of pitman arm (1)，It is leg (9) under the waist (8) of described pitman arm (1)，Leg (9) is downward two projections of pitman arm (1)，Steering linkage (4) is hinged on the leg (9) of pitman arm (1).
null3. multiaxis passenger vehicle slave steering system according to claim 1，It is characterized in that: described steering, locking cylinder (3) is air pressure locking cylinder，Including cylinder body (10)、Piston rod (11)、Left piston (12)、Right piston (13) and jump ring (14)，Described cylinder body (10) both sides respectively arrange an air inlet (15)，Two air inlets (15) connect same air inlet pipe (16)，The middle part of described cylinder body (10) arranges a gas outlet (21) and jump ring (14)，Left piston (12) and right piston (13) are set in cylinder body (10)，Left piston (12) and right piston (13) are respectively at the left and right sides of jump ring (14)，Described right piston (13) is provided with piston rod (11)，Described piston rod (11) is positioned at one end of cylinder body (10) and arranges end plate (17)，Right piston (13) is arranged on end plate (17) right side，Described left piston (12) right side is provided with groove (18)，The end plate (17) of groove (18) and piston rod (11) cooperates，Cylinder body (10) one end outward that is positioned at of described piston rod (11) is hinged on the waist (8) of pitman arm (1).
4. multiaxis passenger vehicle slave steering system according to claim 4, it is characterised in that: described left piston (12) and right piston (13) are slide block type piston.
5. multiaxis passenger vehicle slave steering system according to claim 4, it is characterised in that: cylinder body (10) outer portion that is positioned at of described piston rod (11) is provided with flexible sheath (19).
6. multiaxis passenger vehicle slave steering system according to claim 4, it is characterised in that: the left side of described cylinder body (10) arranges connector (20), cylinder body (10) by connector (20) hinged with on the vehicle frame of passenger vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131962.XA CN105774903A (en) | 2016-03-09 | 2016-03-09 | Follow-up steering system used for multi-shaft passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610131962.XA CN105774903A (en) | 2016-03-09 | 2016-03-09 | Follow-up steering system used for multi-shaft passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105774903A true CN105774903A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610131962.XA Pending CN105774903A (en) | 2016-03-09 | 2016-03-09 | Follow-up steering system used for multi-shaft passenger car |
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| Country | Link |
|---|---|
| CN (1) | CN105774903A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1491428A2 (en) * | 2003-06-28 | 2004-12-29 | MAN Nutzfahrzeuge Aktiengesellschaft | Utility vehicle with a leading or trailing axle with wheels, self-steering through adhesive force |
| CN2866285Y (en) * | 2005-12-31 | 2007-02-07 | 中国三江航天工业集团公司 | Hydraulic centralizing cylinder of vehicle rear wheel steering mechanism |
| CN201525407U (en) * | 2009-09-30 | 2010-07-14 | 方盛车桥（柳州）有限公司 | Follow-up steering bridge assembly |
| CN101875368A (en) * | 2009-12-29 | 2010-11-03 | 长沙中联重工科技发展股份有限公司 | Correction device of multi-axle steering vehicle |
| CN102501897A (en) * | 2011-10-29 | 2012-06-20 | 郑州宇通客车股份有限公司 | Follow-up steering mechanism and independent suspension support bridge using same |
| CN205574048U (en) * | 2016-03-09 | 2016-09-14 | 郑州精益达汽车零部件有限公司 | Multiaxis is follow -up a steering system for passenger train |
-
2016
- 2016-03-09 CN CN201610131962.XA patent/CN105774903A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1491428A2 (en) * | 2003-06-28 | 2004-12-29 | MAN Nutzfahrzeuge Aktiengesellschaft | Utility vehicle with a leading or trailing axle with wheels, self-steering through adhesive force |
| CN2866285Y (en) * | 2005-12-31 | 2007-02-07 | 中国三江航天工业集团公司 | Hydraulic centralizing cylinder of vehicle rear wheel steering mechanism |
| CN201525407U (en) * | 2009-09-30 | 2010-07-14 | 方盛车桥（柳州）有限公司 | Follow-up steering bridge assembly |
| CN101875368A (en) * | 2009-12-29 | 2010-11-03 | 长沙中联重工科技发展股份有限公司 | Correction device of multi-axle steering vehicle |
| CN102501897A (en) * | 2011-10-29 | 2012-06-20 | 郑州宇通客车股份有限公司 | Follow-up steering mechanism and independent suspension support bridge using same |
| CN205574048U (en) * | 2016-03-09 | 2016-09-14 | 郑州精益达汽车零部件有限公司 | Multiaxis is follow -up a steering system for passenger train |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |