CN105954049B - A kind of double-roll type flexible chassis experimental rig - Google Patents
A kind of double-roll type flexible chassis experimental rig Download PDFInfo
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- CN105954049B CN105954049B CN201610513314.0A CN201610513314A CN105954049B CN 105954049 B CN105954049 B CN 105954049B CN 201610513314 A CN201610513314 A CN 201610513314A CN 105954049 B CN105954049 B CN 105954049B
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- rotation
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- flexible chassis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention relates to a kind of double-roll type flexible chassis experimental rig, belong to Vehicle Engineering.To overcome the shortcomings of existing chassis testing device, the present invention respectively sets the centre of gyration revolving platform and differential attachment concentric with chassis biasing steering spindle under four driving wheels of test base plate, sets double roller rotating mechanism to drive differential attachment on platform.The driving wheel of test base plate is placed on the double roller rotating mechanism, completes the test of test base plate performance parameter.Flexible chassis experimental rig disclosed by the invention has the advantage that：(1) stabilized structure, bearing capacity are strong；(2) steering of chassis steering spindle is followed by double roller differential rotating mechanism, more accurately simulates steering mechanism of the test base plate during road traveling；(3) it is simple in structure, tested easy to analog demenstration and control parameter.
Description
Technical field
The present invention relates to a kind of four motorized wheels independent steering chassis testing device, belong to Vehicle Engineering, specifically
For be related to a kind of flexible chassis testing equipment of four motorized wheels independent steering.
Background technology
As society continues to develop, vehicle fleet size is more and more, and road just seems that some are narrow, and vehicle parking is required
Space is more and more nervous.So will result in congested with cars phenomenon during parking or u-turn, its main cause is existing
Caused by the insufficiency of vehicle steering device.
Patent 200610104895.9 (publication number CN1948040) discloses a kind of vehicle drive unit, by existing vehicle
Driving structure is improved to each wheel and can not only drive, but also can turn to.
Patent 200910021065.3 (publication number CN101480968) discloses a kind of electric vehicle drive chassis, by taking turns
Hub motor, brake, controller, storage battery, steering spindle, steering spindle braking electromagnet-friction lock, steering spindle driving turn to friction lock
Form, when straight line is to row, the locking torque for sailing steering spindle electromagnet-friction lock is formed the driving force on ground in steering spindle with wheel
Torque just balance, during steering, the friction lock torque of steering spindle reduces, steering spindle locking torque increase during brake.Can be with
Conveniently realize the function of four-wheel steering.
Patent 200910022569.7 (publication number CN101554883) discloses a kind of chassis control device of electric motor car, leads to
Cross and a sensor with equilbrium position is set in each steering spindle, with the position of sensor detection steering spindle, add wheel
Speed is slowed down.
A kind of offset shaft drive wheel disclosed in patent 200920033330.5 (publication number CN201395165), is returned by wheel
Turn face be j and revolution shaft centre line be k with wheel motor wheel and with wheel surface of revolution j not in conplane king pin
Axis h is formed.
Patent 201220030280.7 (publication number CN202413906U) discloses a kind of electrombile steering control device,
By setting a steering electric bridge on each wheel, steering electric bridge uses a pair actively and servo-actuated variable resistor and two fixations
Resistance forms.
Patent 201320257374.2 (publication number CN 203241246U) discloses one kind and linear motion is changed to circumference fortune
The four motorized wheels independent steering chassis testing device of dynamic form, is set in single-revolution under each driving wheel of test base plate
The concentric rotating disk mechanism of the steering spindle centre of gyration of the heart and driving wheel, test base plate is fixed on the rotating disk mechanism, is completed
The test of four motorized wheels independent steering chassis performance parameter.
Biasing axle construction and four motorized wheels independent steering chassis disclosed in above-mentioned patent improve the steering of vehicle
Function, but chassis has many performance parameters to need to be verified or obtained by experiment.Traditional experiment is transported using straight line
Dynamic form carries out, but the steering spindle on four motorized wheels independent steering chassis circles, using linear motion experimental rig
It is not only complicated, and have many inconveniences.Rotating disc type disclosed in above-mentioned patent independently drives the examination on independent steering chassis
Flexible chassis linear motion form can be changed to circular motion form by testing platform, but since the structure of rotating disc type testing stand limits,
Chassis can not be closely combined together with testing stand, cause chassis there are many performance parameters can not be verified or be obtained.
To overcome the shortcomings of existing experimental rig, the invention discloses one kind by varying flexible chassis driving wheel speed so as to by straight line
Movement is changed to the double-roll type four motorized wheels independent steering chassis testing device of rotary motion form.
The content of the invention
Realize the technical solution of foregoing invention by horizontal rotation platform, double roller rotating mechanism, differential attachment, rack and detection
Device is formed.Set under each driving wheel of test base plate in the center of a revolution and the steering spindle revolution of chassis driving wheel
The concentric double roller rotating mechanism of the heart, the driving wheel of test base plate is placed on the double roller rotating mechanism, is completed four-wheel and is independently driven
The test of dynamic independent steering chassis performance parameter.Specifically the content of the invention is：
A kind of double-roll type flexible chassis experimental rig, by four horizontal rotation platforms, four double roller rotating mechanisms, four differences
Motivation structure, a rack and detection device are formed, it is characterized in that：The horizontal rotation platform is by vertical axis of rotation 22, one end
A pair of of the freewheel 11 for reversing frame 5 and the other end support reversing frame 5 being installed on bearing on vertical axis of rotation 22 forms；It is described
Double roller rotating mechanism by reversing frame 5, support flexible chassis driving wheel 4 and driven by flexible chassis driving wheel 4, around
Roller axle 8 rotate double roller 6, with bearing block be installed on reversing frame 5 on trunnion axis 13, the pinion gear 9 in roller axle 8
Formed with the gear wheel 10 on trunnion axis 13；The differential attachment is by the bevel pinion 14 on trunnion axis 13
Formed with the bevel gear wheel 15 on vertical axis of rotation 22；The left and right linkage bevel gear wheel of the vertical axis of rotation 22
15 engage driving with linkage bevel gear 19；The front and back linkage of the vertical axis of rotation 22 is driven with belt pulley 21 and driven；It is described
Vertical axis of rotation 22 and bevel gear wheel 15 and belt pulley 21 between be connected with key, three rotates at the same speed；
A set of horizontal rotation platform, double roller rotating mechanism and differential machine are respectively set under four driving wheels of flexible chassis
Structure；
The center line of vertical axis of rotation 22 and the center line of flexible chassis steering spindle 3 are concentric, on same straight line；
While bevel pinion 14 is around 13 rotation of trunnion axis, there is the moment of differential in its rotating speed and remaining bevel pinion,
Under the driving of bevel gear wheel 15, reversing frame 5 is driven to revolve round the sun around vertical axis of rotation 22；
Left and right is linked to be connected between bevel gear 19 and universal driving shaft 20 with pivot pin, and convenient dismounting, avoids in test base plate original place
During steering test, cause movement interference since left and right linkage bevel gear 19 turns to difference.
Double-roll type flexible chassis experimental rig disclosed by the invention has the advantage that：
(1) double-roll type experimental rig is used, the effect of simulated roadway is good, and experiment is more accurate；
(2) achieve the purpose that double roller rotating mechanism turns to by varying driving wheel rotating speed, test base plate and testing stand are closed
Connection gets up, accurate simulation steering mechanism of the test base plate during road traveling；
(3) front and rear and left and right double roller rotating mechanism is associated with bevel gear is associated by belt wheel, accurately simulation
The moving situation of test base plate vehicle frame in steering procedure.
Brief description of the drawings
Fig. 1 is the top view of flexible chassis experimental rig schematic diagram
Fig. 2 is the structure diagram of double roller rotating mechanism under one of driving wheel
The meaning that each legend mark represents respectively in attached drawing is as follows：
1- steering arms, 2- friction locks, 3- steering spindles, 4- driving wheels, 5- reversing frames, 6- double rollers,
7- roller axle bearings, 8- roller axles, 9- pinion gears, 10- gear wheels, 11- freewheels, the horizontal bearing housings of 12-,
13- trunnion axis, 14- bevel pinions, 15- bevel gear wheels, 16- bottom bearings, 17- vertical axis of rotation bearings, 18- racks, 19- connection
Dynamic bevel gear, 20- universal driving shafts, 21- belt pulleys, 22- vertical axis of rotations.
Embodiment
Specific embodiment is provided below in conjunction with the accompanying drawings.
One embodiment of the present of invention is each to set a set of double roller to rotate under the driving force of each test base plate
Mechanism, using double roller rotating mechanism under test base plate left drive wheel as object is illustrated, which is driven by bearing chassis
Double roller, vertical axis of rotation and the reversing frame composition rotated around vertical axis of rotation of driving wheel, the driving of 6 top bearing test chassis of double roller
Wheel 4, both ends are connected by roller axle bearing 7 with reversing frame 5；5 upper support double roller 6 of reversing frame, lower section passes through horizontal axle bearing
Seat 12 is connected with trunnion axis, and outside sets traveling wheel 11, and inner side is connected by center axle bearing 17 with vertical axis of rotation 22；Center
Rotating shaft 17 is by the way that in the fixation of bottom bearing 16 and rack 18, top installation belt pulley 21, bevel gear wheel 15 is installed in lower part, big
The installation of the left side of bevel gear 15 turns to bevel pinion 14, right side installation association bevel gear 19；Double roller 6 by roller axle 8, pinion gear 9,
Gear wheel 10 and trunnion axis 13 are connected with bevel pinion 14, complete power transmission；The center of vertical axis of rotation 22 is turned to chassis
The center of axis 3 is concentric；Bevel pinion 14 both can in situ rotation, reversing frame 5 can also be driven to revolve round the sun around vertical axis of rotation 22；
The center steering axis 22 of front and rear double roller rotating mechanism can be linked by belt pulley 21, vertical axis of rotation 22 before and after guarantee
Rotating speed is identical；Bevel gear 19 of linking is got up the linkage of bevel gear wheel 15 of the double roller rotating mechanism of left and right by universal driving shaft 20, is protected
The rotating speed for demonstrate,proving left and right bevel gear wheel 15 is identical；It can easily be dismounted between linkage bevel gear 19 and universal driving shaft 20, avoid trying
Since left and right linkage bevel gear 19 turns to the problem of different band is come when testing chassis pivot stud condition test, ensure pivot stud examination
That tests is smoothed out.
As shown in the figure, test base plate driving wheel 4 is placed on double roller 6, friction lock 2, the driving of firing test chassis are pinned
Wheel 4, then double roller 6 can rotate therewith, and then drive pinion gear 9, gear wheel 10 to rotate, so as to drive rotation small by trunnion axis 13
Bevel gear 14 rotates, and bevel gear wheel 15 will rotate therewith, and vertical axis of rotation 22 rotates together with bevel gear wheel 15, and belt pulley
21 ensure that 22 rotating speed of vertical axis of rotation of front and rear two double rollers rotating mechanism is equal by V belt translation, and linkage bevel gear 19 passes through linkage
Axis 20 ensure left and right two double roller rotating mechanisms 15 rotating speed of bevel gear wheel it is equal, then under each driving wheel double roller rotating mechanism it is big
15 rotating speed of bevel gear is equal, and can carry out the test of test base plate straight trip performance at this time；When turn for changing above left and right sidesing driving wheel 4
Speed, releases the locking of friction lock, is then rotated by gear, and 14 speed of bevel pinion will change, and bevel gear wheel 15 by
In the effect for being subject to belt wheel 21 with associating bevel gear 20, speed will remain unchanged, then bevel pinion 14 will drive reversing frame 5
Rotated by freewheel 11 around vertical axis of rotation 22, at the same time driving wheel can also be turned round around its steering spindle 3, and velocity of rotation with
5 velocity of rotation of reversing frame is identical, and because vertical axis of rotation 22 and the steering spindle 3 of chassis driving wheel are concentric, then can carry out at this time
The performance test that test base plate turns to.
An alternative embodiment of the invention is to change belt pulley 21 into sprocket wheel, changes belt into chain.It is meanwhile of the invention
Sprocket wheel can also be arranged under bevel gear wheel 15 by embodiment.And so on, on the premise of its general principles are constant,
In structure arrangement, the various changes made in structure, the embodiment of the present invention card will be all regarded as.
Claims (5)
1. a kind of double-roll type flexible chassis experimental rig, by four horizontal rotation platforms, four double roller rotating mechanisms, four it is differential
Mechanism, a rack and detection device are formed, it is characterized in that：The horizontal rotation platform is by vertical axis of rotation (22), one end
A pair of of freewheel (11) of the reversing frame (5) and other end support reversing frame (5) that are installed on bearing on vertical axis of rotation (22)
Composition；The double roller rotating mechanism is by reversing frame (5), support flexible chassis driving wheel (4) and by flexible chassis
Driving wheel (4) driving, around roller axle (8) rotate double roller (6), with bearing block be installed on reversing frame (5) on trunnion axis (13),
Pinion gear (9) in roller axle (8) and gear wheel (10) composition on trunnion axis (13)；The differential machine
Bevel gear wheel (15) group of structure by the bevel pinion (14) on trunnion axis (13) and on vertical axis of rotation (22)
Into；The left and right linkage of the vertical axis of rotation (22) engages driving with bevel gear wheel (15) with linkage bevel gear (19)；It is described
Vertical axis of rotation (22) front and back linkage with belt pulley (21) be driven mutually driving；The vertical axis of rotation (22) and auger
It is connected between gear (15) and belt pulley (21) with key, three rotates at the same speed.
2. double-roll type flexible chassis experimental rig according to claim 1, it is characterized in that in four drivings of flexible chassis
It is each under wheel that a set of horizontal rotation platform, double roller rotating mechanism and differential attachment are set.
3. double-roll type flexible chassis experimental rig according to claim 1, it is characterized in that the center of vertical axis of rotation (22)
Line and the center line of flexible chassis steering spindle (3) are concentric, on same straight line.
4. double-roll type flexible chassis experimental rig according to claim 1, it is characterized in that bevel pinion (14) is around trunnion axis
(13) while rotation, there is the moment of differential in its rotating speed and remaining bevel pinion, under the driving of bevel gear wheel (15), band
Dynamic reversing frame (5) revolves round the sun around vertical axis of rotation (22).
5. double-roll type flexible chassis experimental rig according to claim 1, it is characterized in that left and right linkage bevel gear (19) with
Universal driving shaft is connected between (20) with pivot pin, and convenient dismounting, is avoided when test base plate pivot stud is tested, linked and bored due to left and right
Gear (19) turns to difference and causes movement interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513314.0A CN105954049B (en) | 2016-06-22 | 2016-06-22 | A kind of double-roll type flexible chassis experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513314.0A CN105954049B (en) | 2016-06-22 | 2016-06-22 | A kind of double-roll type flexible chassis experimental rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105954049A CN105954049A (en) | 2016-09-21 |
| CN105954049B true CN105954049B (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610513314.0A Expired - Fee Related CN105954049B (en) | 2016-06-22 | 2016-06-22 | A kind of double-roll type flexible chassis experimental rig |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766084B (en) * | 2020-07-09 | 2022-10-18 | 武汉易宝科技有限公司 | Automobile chassis performance test system and method based on dynamic motion simulation |
| CN113978181B (en) * | 2021-12-23 | 2022-03-18 | 苏州英特模汽车科技有限公司 | Tire detection auxiliary device with Mecanum wheel and tire positioning method |
| CN114291176B (en) * | 2022-01-14 | 2023-12-22 | 温州市七都大桥北汊桥建设有限公司 | Heavy object displacement device for bridge construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309287A (en) * | 2000-02-18 | 2001-08-22 | 太阳电气***有限公司 | Roll pair for roll testing supporter |
| CN102944428A (en) * | 2012-11-22 | 2013-02-27 | 西华大学 | Test platform for electric wheel independent driving system of electric automobile |
| CN103245517A (en) * | 2013-05-13 | 2013-08-14 | 西北农林科技大学 | Chassis testing device with four wheels driven and turned independently |
| CN205748943U (en) * | 2016-06-22 | 2016-11-30 | 西北农林科技大学 | A kind of double-roll type flexible chassis assay device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007034942A1 (en) * | 2005-09-26 | 2007-03-29 | Kokusai Keisokuki Kabushiki Kaisha | Traveling test device |
-
2016
- 2016-06-22 CN CN201610513314.0A patent/CN105954049B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309287A (en) * | 2000-02-18 | 2001-08-22 | 太阳电气***有限公司 | Roll pair for roll testing supporter |
| CN102944428A (en) * | 2012-11-22 | 2013-02-27 | 西华大学 | Test platform for electric wheel independent driving system of electric automobile |
| CN103245517A (en) * | 2013-05-13 | 2013-08-14 | 西北农林科技大学 | Chassis testing device with four wheels driven and turned independently |
| CN205748943U (en) * | 2016-06-22 | 2016-11-30 | 西北农林科技大学 | A kind of double-roll type flexible chassis assay device |
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| CN105954049A (en) | 2016-09-21 |
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