CN105083378A - Actuating mechanism of distributive independent steering system - Google Patents
Actuating mechanism of distributive independent steering system Download PDFInfo
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- CN105083378A CN105083378A CN201510638294.5A CN201510638294A CN105083378A CN 105083378 A CN105083378 A CN 105083378A CN 201510638294 A CN201510638294 A CN 201510638294A CN 105083378 A CN105083378 A CN 105083378A
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- independent steering
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Abstract
The invention relates to an actuating mechanism of a distributive independent steering system and provides a specific structure scheme for four-wheel independent steering electric vehicle steering systems. The actuating mechanism comprises a motor reducer assembly, upper and lower connection plates, a steering transmission shaft, conical bearings, a large-diameter disc type bearing, a steering bushing, a on-wheel horizontal plate, guide rods, a shock absorber spring assembly, linear bearing blocks and a wheel assembly, wherein steering torque of a motor is finally transmitted to the wheel assembly through a series of mechanisms, and steering of an automobile is realized; the pair of conical bearings and the large-diameter disc type bearing in the structure of the actuating mechanism can bear large lateral force; linear bearings can convert sliding friction between the guide rods and the linear bearing blocks into rolling friction, and the problem that the guide rods get stuck is effectively solved. The actuating mechanism provides a safe and reliable hardware platform for independent steering electric vehicles, guarantees the structural stability and reliability of the independent steering system and has a great significance in research and development of the distributive independent steering electric vehicles.
Description
Technical field
The present invention relates to four motorized wheels independent steering electronlmobil, particularly relate to a kind of distributed independent steering system actuating unit.
Background technology
At present, the independent steering electronlmobil steering swivel system occurred drives wheel set by steer motor, realize turning function, this kind of each wheel of steering swivel system is equipped with a steer motor, various driving mode can be realized, and the corner size of four wheels can be distributed better, improve vehicle run stability, but the shortcoming of this kind of steering swivel system is steer motor output shaft to be directly connected with wheel set, easily cause motor output shaft to bear larger moment of flexure turning under large lateral forces, cause steering swivel system to lose efficacy, serious consequence to lose control of one's vehicle.The present invention relates to a kind of distributed independent steering system actuating unit, the large side force mainly solved in Vehicular turn process damages steering hardware problem and the stuck problem of pilot bar, does not also have the precedent of this respect at present.
Summary of the invention
The object of this invention is to provide a kind of distributed independent steering system actuating unit, be applied to the electronlmobil of four motorized wheels independent steering, in particular, provide and a kind ofly can solve side force under automobile high speed driving cycle and damage the problem that the problem of steering hardware and large side force cause pilot bar stuck, improve the reliability of four-wheel independent steering electronlmobil under high speed driving cycle and safety, the development of four-wheel independent steering electronlmobil is had great importance.
For achieving the above object, the technology that the present invention adopts is:
A kind of distributed independent steering system actuating unit, this turns to actuating unit to be connected on vehicle frame, it is characterized in that: comprise be connected to two connecting panels up and down on described vehicle frame, the torque motor speed reducer assembly be connected on described upper junction plate, be connected to the steering inner articulated shaft on described motor reducer assembly output shaft, the wheel upper cross plate be connected on described transmission shaft, the linear axis bearing that is connected to pilot bar on wheel upper cross plate and vibration damper complement, is connected with described pilot bar and wheel hub motor output shaft.Described upper junction plate is fixed on described vehicle frame, described lower connecting plate is fixed on described vehicle frame together with major diameter disc type outside race, described major diameter disc type bearing inner ring is fixed on together with described transmission shaft describedly takes turns on upper cross plate, to top installation a pair conical bearing on described transmission shaft, described transmission shaft and conical bearing are arranged in turning sleeve, described turning sleeve upper end is fixed on described upper junction plate together with motor reducer assembly, lower end is fixed on described lower connecting plate, described wheel upper cross plate connects two pilot bars, pilot bar lower end connects linear axis bearing, and be directly fixed in wheel hub motor stator axis.
The tire earth point of the distributed independent steering system actuating mechanism assembly described in technical scheme overlap with steer motor reducer output shaft line and axes normal in ground, this method for arranging can reduce the cornering resistance of wheel when Vehicular turn.
Distributed independent steering system actuating unit described in technical scheme bears the ability of large side force by mechanism when double cone bearing and major diameter disc type bearing raising Vehicular turn.Vehicle can produce very large side force under Turning travel operating mode, described distributed independent steering system actuating unit regulates the Internal and external cycle gap of described conical bearing to make major diameter disc type bearing as maximum bearing member by the adjustment packing ring of conical bearing, and described major diameter disc type bearing has higher load-carrying capacity, therefore the ability that described distributed independent steering system actuating unit bears side force is higher.
Steering inner articulated shaft end thread mill drilling described in technical scheme, and the Internal and external cycle gap of conical bearing is adjusted by packing ring and tightening screw.
Suspension frame structure is arranged in wheel medial surface by the distributed independent steering system actuating unit described in technical scheme, reduces wheel set vertical dimension.
Distributed independent steering system actuating unit described in technical scheme by the steering torque under two pilot bars transmission steering situations and side force, and makes pilot bar stuck in order to prevent side force excessive, install linear bearing in described linear axis bearing inside.
Pilot bar upper end described in technical scheme is fixed, lower end can slide up and down in linear axis bearing, be used for realizing the bump travel of jounce bumper under live load, and pilot bar installs a stop nut and rubber block, is used for ensureing the maximum jitter stroke of jounce bumper within the specific limits.
The present invention is the independent steering gear for the design of distributed electrical motor-car, four-wheel independent steering can be realized, and the automobile problem that during Turning travel, in the excessive and problem that steering hardware is damaged of side force and steering procedure, large side force pilot bar is stuck under high speed operating mode can be solved, have significant effect for the structural reliability and driving safety that improve independent steering system, the development for four-wheel independent steering electronlmobil has great importance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Accompanying drawing 1 is the structural representation of this distributed independent steering system actuating unit;
Accompanying drawing 2 is structure cutaway views of steer drive;
Accompanying drawing 3 is steering swivel system pilot bar partial schematic diagram;
In Fig. 1:
1 is steering power source torque motor, 2 is planetary reduction gears, 3 is upper junction plates, 4 is turning sleeve (turning sleeve inner structure is illustrated by Fig. 2), 9 is wheel upper cross plates, 10 is jounce bumper assemblies, 11 is pilot bar (comprising left pilot bar 11 and right pilot bar 12), 13 is right linear axis bearings, 15 is that left linear axis bearing (is provided with linear bearing between the linear axis bearing of left and right, illustrated by Fig. 3), 16 is wheel set (wheel hub motor is equipped with in inside), 17 is major diameter disc type outside racees (inner structure is illustrated by Fig. 2), 20 is lower connecting plates, 21 is vehicle frames.
In Fig. 2:
5 is steering inner articulated shafts, and 6 is conical bearing gap adjustment packing ring and tightening screw, and 7 is upper conical bearings, and 8 is lower conical bearings, and 18 is major diameter disc type bearing rollers, and 19 is major diameter disc type bearing inner rings.
In Fig. 3:
11 is left pilot bars, and 12 is right pilot bars, is linear bearing 14 between left and right linear axis bearing.
Specific implementation method
Below in conjunction with the elaboration that accompanying drawing 1,2,3 carries out specifically to technical scheme provided by the invention, arbitrary technological means provided by the invention being carried out technical scheme that two or more technological means any of replacing or this being provided or technical characteristic carry out mutually combining and obtain all should within protection scope of the present invention.
Consulting Fig. 1 Fig. 2, the present invention relates to a kind of steering hardware, is the actuating unit for distributed independent steering system designs.When chaufeur steering wheel rotation, torque motor speed reducer assembly 1, 2 export a torque, this torque is delivered to major diameter disc type bearing inner ring 19 through steering inner articulated shaft 5, and big-diameter bearing inner ring 19 is connected with wheel upper cross plate 9, torque so be delivered to wheel upper cross plate 9, upper cross plate 9 and linear axis bearing 13 is being taken turns through being fixed on, two pilot bars 11 between 15, 13 transmit torque to linear axis bearing 13, on 15, and linear axis bearing 13, 15 directly connect wheel set 16, therefore this torque makes wheel set 16 produce corresponding corner, realize the turning function of automobile.
Consult Fig. 1 Fig. 2, when motor turning travels, the side force that automobile produces will be delivered to wheel upper cross plate 9 via tire 16, linear axis bearing 13,15 and pilot bar 11,12.Because this side force is comparatively large, comparatively large on the impact of this steering system structural, directly cause structural failure time serious, steering swivel system was lost efficacy, safety misadventure occurs.The present invention is directed to this problem and have employed a pair conical bearing, 7,8 and major diameter disc type bearing 17,18,19 to bear side force, avoid side force on the impact of steering swivel system.As Fig. 2, regulated the Internal and external cycle gap of conical bearing 7,8 by adjustment packing ring 6, make most of lateral forces on major diameter disc type bearing, and the load-carrying capacity of major diameter disc type bearing is higher, so the ability that this steering hardware bears side force is higher.Side force when Vehicular turn travels also has sub-fraction by bearing the conical bearing on top, further enhancing the ability that steering hardware bears side force.
Consult Fig. 1 Fig. 3, because side force is transmitted via pilot bar 11,12, and pilot bar 11,12 also will linearly slide up and down by bearing seat 13,15, iff the dry friction relied between pilot bar 11,12 and linear axis bearing 13,15, pilot bar 11,12 is by serious wear, may occur time serious pilot bar 11,12 stuck making damper spring assembly ineffective.The present invention installs linear bearing between left and right linear axis bearing 13,15, can avoid the appearance of wearing and tearing and stuck phenomenon well, improve the reliability that this turns to actuating unit.
Consult Fig. 1 Fig. 3, this turns to actuating unit to comprise jounce bumper assembly, has the effect of suspension simultaneously.Pilot bar 11,12 upper end is fixed with wheel upper cross plate 9, vertically can slide in lower end in linear axis bearing 13,15.When automobile bob, damper spring assembly 10 is compressed, and vertical force is delivered to wheel upper cross plate 9 through damper spring assembly 10, be delivered on vehicle frame 21 via major diameter disc type bearing 19 and lower connecting plate 20 again, and through the damping of vibrations of jounce bumper assembly 10, automobile bob reduces gradually until disappear.Pilot bar 11,12 lower end is provided with stop nut and rubber block, ensure that the bump travel of jounce bumper can not be excessive.
Claims (7)
1. a distributed independent steering system actuating unit, this turns to actuating unit to be connected on vehicle frame, it is characterized in that: comprise two connecting panels be up and down connected on described vehicle frame, be connected to the torque motor speed reducer assembly on described upper junction plate, be connected to the steering inner articulated shaft on described motor reducer assembly output shaft, be connected to the wheel upper cross plate on described transmission shaft, be connected to the pilot bar on wheel upper cross plate and vibration damper complement, the linear axis bearing be connected with described pilot bar and wheel hub motor output shaft, described upper junction plate is fixed on described vehicle frame, described lower connecting plate is fixed on described vehicle frame together with major diameter disc type outside race, described major diameter disc type bearing inner ring is fixed on together with described transmission shaft describedly takes turns on upper cross plate, to top installation a pair conical bearing on described transmission shaft, described transmission shaft and conical bearing are arranged in turning sleeve, described turning sleeve upper end is fixed on described upper junction plate together with motor reducer assembly, lower end is fixed on described lower connecting plate, described wheel upper cross plate connects two pilot bars, pilot bar lower end connects linear axis bearing, and be directly fixed in wheel hub motor stator axis.
2. distributed independent steering system actuating unit according to claim 1, it is characterized in that: described distributed independent steering system actuating mechanism assembly tire earth point overlap with steer motor reducer output shaft line and axes normal in ground, reduce wheel steering resistance.
3. distributed independent steering system actuating unit according to claim 1, it is characterized in that: described distributed independent steering system actuating unit bears the ability of large side force by mechanism when double cone bearing and major diameter disc type bearing raising Vehicular turn, vehicle can produce very large side force under Turning travel operating mode, described distributed independent steering system actuating unit regulates the Internal and external cycle gap of described double cone bearing to make major diameter disc type bearing as main bearing member by the adjustment packing ring of conical bearing, and described major diameter disc type bearing has higher load-carrying capacity, therefore the ability that described distributed independent steering system actuating unit bears side force is higher.
4. distributed independent steering system actuating unit according to claim 3, is characterized in that: described steering inner articulated shaft end thread mill drilling, and adjusts inner and outer rings of conical bearings gap by packing ring and tightening screw.
5. distributed independent steering system actuating unit according to claim 1, is characterized in that: suspension frame structure is arranged in wheel medial surface by described distributed independent steering system actuating unit, reduces wheel set vertical dimension.
6. distributed independent steering system actuating unit according to claim 5, it is characterized in that: described distributed independent steering system actuating unit is by the steering torque under two pilot bars transmission steering situations and side force, and make pilot bar stuck to prevent side force excessive, in described linear axis bearing inside, linear bearing is installed.
7. distributed independent steering system actuating unit according to claim 6, it is characterized in that: described pilot bar upper end is fixed, lower end can slide up and down in linear axis bearing, be used for realizing the bump travel of jounce bumper under live load, and pilot bar installs a stop nut and rubber block, is used for ensureing the maximum jitter stroke of jounce bumper within the specific limits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638294.5A CN105083378B (en) | 2015-09-29 | 2015-09-29 | Actuating mechanism of distributive independent steering system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510638294.5A CN105083378B (en) | 2015-09-29 | 2015-09-29 | Actuating mechanism of distributive independent steering system |
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| CN105083378A true CN105083378A (en) | 2015-11-25 |
| CN105083378B CN105083378B (en) | 2017-05-03 |
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| CN201510638294.5A Expired - Fee Related CN105083378B (en) | 2015-09-29 | 2015-09-29 | Actuating mechanism of distributive independent steering system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005009A (en) * | 2016-07-13 | 2016-10-12 | 北京热刺激光技术有限责任公司 | Intelligent vector chassis for brand new wheeled type electric motor vehicle |
| CN106394153A (en) * | 2016-11-25 | 2017-02-15 | 山东大学 | Travelling and steering servo driving wheel integrating hydraulic brake and suspension system |
| CN106428198A (en) * | 2016-11-30 | 2017-02-22 | 湘潭电机股份有限公司 | Electric wheel |
| CN107336741A (en) * | 2017-06-30 | 2017-11-10 | 南京云之璟机电科技有限公司 | A kind of suspension fork mechanism based on In-wheel motor driving |
| CN109808481A (en) * | 2017-11-20 | 2019-05-28 | 北京京东尚科信息技术有限公司 | Wheel mechanism, electronic unmanned chassis and electronic unmanned vehicle based on hub motor |
| CN111469914A (en) * | 2020-05-29 | 2020-07-31 | 长城汽车股份有限公司 | Steering mechanism, steering wheel assembly and vehicle |
| CN111469621A (en) * | 2020-05-29 | 2020-07-31 | 长城汽车股份有限公司 | Steering wheel assembly and vehicle |
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| CN101648573A (en) * | 2009-08-31 | 2010-02-17 | 吉林大学 | Automobile traveling mechanism with wheel hub comprehensively drive and turning |
| CN101716954A (en) * | 2009-11-24 | 2010-06-02 | 深圳职业技术学院 | Electric automobile with independently steered and driven wheels and steering and drive control method thereof |
| CN101973307A (en) * | 2010-10-19 | 2011-02-16 | 吉林大学 | Main pin zero bias wire-controlled independent driven and steering automobile running mechanism and electric vehicle |
| CN102431586A (en) * | 2011-10-24 | 2012-05-02 | 上海航天汽车机电股份有限公司 | Integrated steering and suspension system |
| CN205075885U (en) * | 2015-09-29 | 2016-03-09 | 吉林大学 | Independent a steering system actuating mechanism of distributing type |
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2015
- 2015-09-29 CN CN201510638294.5A patent/CN105083378B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101648573A (en) * | 2009-08-31 | 2010-02-17 | 吉林大学 | Automobile traveling mechanism with wheel hub comprehensively drive and turning |
| CN101716954A (en) * | 2009-11-24 | 2010-06-02 | 深圳职业技术学院 | Electric automobile with independently steered and driven wheels and steering and drive control method thereof |
| CN101973307A (en) * | 2010-10-19 | 2011-02-16 | 吉林大学 | Main pin zero bias wire-controlled independent driven and steering automobile running mechanism and electric vehicle |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005009A (en) * | 2016-07-13 | 2016-10-12 | 北京热刺激光技术有限责任公司 | Intelligent vector chassis for brand new wheeled type electric motor vehicle |
| CN106005009B (en) * | 2016-07-13 | 2023-11-21 | 北京热刺激光技术有限责任公司 | Intelligent vector chassis of brand new wheeled electric motor vehicle |
| CN106394153A (en) * | 2016-11-25 | 2017-02-15 | 山东大学 | Travelling and steering servo driving wheel integrating hydraulic brake and suspension system |
| CN106428198A (en) * | 2016-11-30 | 2017-02-22 | 湘潭电机股份有限公司 | Electric wheel |
| CN107336741A (en) * | 2017-06-30 | 2017-11-10 | 南京云之璟机电科技有限公司 | A kind of suspension fork mechanism based on In-wheel motor driving |
| CN109808481A (en) * | 2017-11-20 | 2019-05-28 | 北京京东尚科信息技术有限公司 | Wheel mechanism, electronic unmanned chassis and electronic unmanned vehicle based on hub motor |
| CN109808481B (en) * | 2017-11-20 | 2020-07-31 | 北京京东尚科信息技术有限公司 | Wheel mechanism based on hub motor, electric unmanned vehicle chassis and electric unmanned vehicle |
| CN111469914A (en) * | 2020-05-29 | 2020-07-31 | 长城汽车股份有限公司 | Steering mechanism, steering wheel assembly and vehicle |
| CN111469621A (en) * | 2020-05-29 | 2020-07-31 | 长城汽车股份有限公司 | Steering wheel assembly and vehicle |
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| Publication number | Publication date |
|---|---|
| CN105083378B (en) | 2017-05-03 |
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Granted publication date: 20170503 Termination date: 20190929 |