CN107139671A - The wheel mechanism on automatic driving car test car chassis - Google Patents
The wheel mechanism on automatic driving car test car chassis Download PDFInfo
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- CN107139671A CN107139671A CN201710389141.0A CN201710389141A CN107139671A CN 107139671 A CN107139671 A CN 107139671A CN 201710389141 A CN201710389141 A CN 201710389141A CN 107139671 A CN107139671 A CN 107139671A
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- cross bar
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- 230000007246 mechanism Effects 0.000 title claims abstract description 63
- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000012856 packing Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000930 thermomechanical effect Effects 0.000 claims description 2
- 239000003351 stiffener Substances 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- 230000002787 reinforcement Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/12—Wound spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/30—Load ramps
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of wheel mechanism on automatic driving car test car chassis, the wheel mechanism has a wheel stand, between the wheel stand both sides and one first cross bar and one second cross bar that are parallel to each other；The wheel mechanism has at least two driving wheel units and at least one universal wheel unit；The driving wheel unit has a driving wheel and a motor component, and the motor component side is connected via one first runner assembly with the wheel stand, and opposite side is connected via one first spring assembly with first cross bar；The universal wheel unit has a universal wheel, a second turning discreteness and a second spring component.The present invention provides one kind after wheel mechanism is by huge momentary load, automatically can inside contract four-wheel, high capacity is born by chassis body mechanism, so that the loss to wheel mechanism consumable accessory is reduced, more economical environmentally friendly automatic driving car test car chassis.
Description
Technical field
The present invention relates to automatic driving car technical field of measurement and test, more particularly to a kind of automatic driving car test car chassis
Wheel mechanism.
Background technology
Test car is in test automatic driving car security process, often because jumping for automatic driving car wheel is hit
Hit, huge momentary load is caused to the chassis of test car, so that the wheel mechanism to dolly chassis also brings huge wink
Between load.Because the wheel mechanism on existing test car chassis is rigid wheel mechanism, when huge momentary load is acted on
When on wheel mechanism, often wheel is caused damage, the consume to wheel is exacerbated, so as to reduce making for test car chassis
With the life-span, and uneconomical environmental protection, cause the waste of social resources.
The content of the invention
The present invention is rigidity for the wheel mechanism on automatic driving car test car chassis of the prior art, there is rapid wear
Bad wheel, the service life on reduction test car chassis causes the defects such as social resources waste, it is therefore intended that provides one kind and works as car
Mechanism is taken turns by after huge momentary load, automatically can be inside contracted four-wheel so that high capacity is born by chassis body mechanism, from
And the loss to wheel mechanism consumable accessory is reduced, the wheel mechanism on more economical environmentally friendly automatic driving car test car chassis.
Realizing the technical scheme of above-mentioned purpose is：
The present invention automatic driving car test car chassis wheel mechanism, the wheel mechanism have a wheel stand,
Between the wheel stand both sides and one first cross bar and one second cross bar that are parallel to each other；
The wheel mechanism is spaced located between the wheel stand and first cross bar with least two
Drive wheel unit, and at least one universal wheel unit being located between the wheel stand and second cross bar；
The driving wheel unit has a driving wheel and a motor component being connected with the driving wheel, the driving
Electric machine assembly both sides are respectively provided with one first rotating group being connected with the wheel stand for realizing that the driving wheel is inside contracted
Part and one first spring assembly being connected with first cross bar；
The universal wheel unit has a universal wheel, for realize that the universal wheel inside contracts respectively with the universal wheel,
A second turning discreteness that second cross bar is fixedly connected and the second spring component being connected with the second turning discreteness.
There is the motor component motor mounting plate being connected with the driving wheel side, one to pacify with the motor
The motor that dress plate is fixedly connected, the motor is installed close to the side of the wheel stand provided with one with the motor
The first connecting plate that plate is fixedly connected, the motor is pacified close to the opposite side of first cross bar provided with one with the motor
The L-shaped spring bearer plate that dress plate is fixedly connected；First connecting plate is fixedly connected with first runner assembly, the L-shaped bullet
The lateral part of spring pressing plate is located at the first cross bar upper surface.
First runner assembly have a rotating shaft, two be respectively arranged on the rotating shaft end positions and with the wheel stand
The rotary shaft rack being fixedly connected and second connecting plate being fixedly connected respectively with the rotating shaft, first connecting plate.
The rotating shaft two ends are socketed in the rotary shaft rack via a copper sheathing respectively.
First spring assembly has located at the lateral part upper surface of the L-shaped spring bearer plate successively from bottom to top
One first spring washer, one first spring, a second spring packing ring and one first nut；First spring assembly also has one
Extend through located at the second spring packing ring, first spring, first spring washer, the L-shaped spring bearer plate
The first spring pull bar in lateral part and first cross bar.
The first spring pull bar is rotatably arranged in institute close to described first cross bar one end via one first straight pin rod
State in the first cross bar.
The second turning discreteness have the 3rd connecting plate being fixedly connected with second cross bar, one respectively with it is described
3rd connecting plate, the universal wheel connection the 4th connecting plate, between the 3rd connecting plate and the 4th connecting plate via
One second straight pin rod is rotatably connected；4th connecting plate is provided with the Z-shaped bullet of a class close to the second spring component side
Spring pressing plate；The lateral part upper surface of the Z-shaped spring bearer plate of class is provided with the second spring component.
The second spring component is fixedly connected via one the 5th connecting plate with the wheel stand.
The second spring component has located at the lateral part upper surface of the Z-shaped spring bearer plate of the class successively from bottom to top
One the 3rd spring washer, a second spring, one the 4th spring washer and one second nut；The second spring component also has
One extends through located at the 4th spring washer, the second spring, the 3rd spring washer, the Z-shaped spring pressure of the class
Second spring pull bar in the lateral part of plate and the 5th connecting plate.
The second spring pull bar is rotatably arranged in close to described 5th connecting plate one end via one the 3rd straight pin rod
In 5th connecting plate.
What the automatic driving car test car chassis of the present invention was also fixedly connected with one with the wheel mechanism upper surface
Chassis body mechanism, the chassis body mechanism is that section isThe chassis body mechanism of type；
There is a chassis body and a lid to be located at the chassis body upper surface for the chassis body mechanism
The chassis case of type, the chassis body has a chassis overhang being located at below the chassis case inner surface center；
The chassis overhang inner surface fixes the wheel stand for having the wheel mechanism.
The chassis case has to be all provided with a central plate being arranged on the chassis overhang, the central plate four edges
Have and one second oblique plate is provided between a first oblique plate set to outer lower side, adjacent two first oblique plate.
The chassis overhang has the two vertically disposed steel of isosceles trapezoid first of opposite end respectively with the central plate
Pipe holder and two be vertical at it is between the first steel pipe support described in two and vertical with another opposite end of the central plate respectively
The steel pipe support of rectangle second of setting.
The first oblique plate inner surface has some vertical with first steel pipe support or second steel pipe support
The stiffener plate of right angled triangle first of setting；
The inclined-plane of first stiffener plate is vertical with the described first oblique plate inner surface to be fixedly connected and extends to
The lower edge of the first oblique plate, the vertical plane of first stiffener plate is fixedly connected with the chassis overhang.
The second oblique plate inner surface is provided with a reinforcement block；
The reinforcement block has several right angled triangles second for the setting that stretches out centered on a reinforcement axle
Stiffener plate, with a reinforcement for being fixedly connected with several tops of second stiffener plate away from the reinforcement axle
Bar；
The inclined-plane of second stiffener plate is vertical with the described second oblique plate inner surface to be fixedly connected and always to downward
Extend the lower edge of the described second oblique plate, second stiffener plate of the reinforcement block close to the first steel pipe support side
Side be fixedly connected with first steel pipe support.
The reinforcement block also has some 3rd stiffener plates, and the top of the 3rd stiffener plate one adds with described second
Top of the strengthening tendons plate away from the reinforcement axle is fixedly connected, the opposite side on the top of the 3rd stiffener plate with it is corresponding described
The middle section position of second stiffener plate is fixedly connected.
The first oblique plate is the first oblique plate that bevel angle is 20~40 degree；The second oblique plate is the angle of chamfer
Spend the second oblique plate for 20~40 degree.
The chassis case is fixedly connected via some fasteners with the chassis body.
The positive effect of the present invention is：
The wheel mechanism on the automatic driving car test car chassis of the present invention, by the motor both sides of driving wheel point
The first runner assembly and spring assembly Pei He be provided with, and by being respectively cooperating with being provided with the second turning discreteness and bullet on universal wheel
Spring component, realizes after wheel mechanism is by huge momentary load, automatically can move up driving wheel and universal wheel, is formed
Inside contract so that high capacity is born by chassis body mechanism, so as to reduce the loss to wheel mechanism consumable accessory, extend nobody and drive
Sail the service life on car test car chassis, more economical environmental protection.
The technique effect of the design of the present invention, concrete mechanism and generation is described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 is the chassis case structural representation on automatic driving car test car chassis of the present invention；
Fig. 2 is the overall structure diagram on automatic driving car test car chassis of the present invention；
Fig. 3 is the chassis body mechanism section structural representation on automatic driving car test car chassis of the present invention；
Fig. 4 is the first steel pipe support structural representation on automatic driving car test car chassis of the present invention；
Fig. 5 is the second steel pipe support structural representation on automatic driving car test car chassis of the present invention；
Fig. 6 is the stiffener plate structural representation on automatic driving car test car chassis of the present invention；
Fig. 7 is the reinforcement block structure schematic diagram on automatic driving car test car chassis of the present invention；
The first wheel mechanism structural representation on Fig. 8 automatic driving car test car chassis of the present invention；
The second wheel mechanism structural representation on Fig. 9 automatic driving car test car chassis of the present invention；
The first wheel mechanism driving wheel cellular construction schematic diagram on Figure 10 automatic driving car test car chassis of the present invention；
The second wheel mechanism driving wheel cellular construction schematic diagram on Figure 11 automatic driving car test car chassis of the present invention；
The first wheel mechanism universal wheel cellular construction schematic diagram on Figure 12 automatic driving car test car chassis of the present invention；
The second wheel mechanism universal wheel cellular construction schematic diagram on Figure 13 automatic driving car test car chassis of the present invention；
The sectional median plane figure on Figure 14 automatic driving car test car chassis of the present invention；
Figure 15 is the first spring assembly structural representation on automatic driving car test car chassis of the present invention；
Figure 16 is the second spring modular construction schematic diagram on automatic driving car test car chassis of the present invention；
Figure 17 is automatic driving car test car chassis of the present invention not by side view during high capacity；
Figure 18 is automatic driving car test car chassis of the present invention by side view during high capacity.
Embodiment
Enumerate preferred embodiment below, and become apparent from intactly illustrating the present invention with reference to accompanying drawing.
With reference to Fig. 1 to Figure 18, automatic driving car test car chassis of the present invention is described in detail.
As shown in Fig. 2 the present embodiment automatic driving car test car chassis, is with sectionThe chassis of type
Main body mechanism 10 and the wheel mechanism 20 being fixedly connected with chassis body mechanism 10 inner surface.
As depicted in figs. 1 and 2, there is chassis body 11 and lid to be located at the upper surface of chassis body 11 for chassis body mechanism 10The chassis case 12 of type.Chassis case 12 is fixedly connected via some fasteners 13 with chassis body 11.Chassis master
Body 11 has the chassis overhang 111 being located at below the inner surface center of chassis case 12.As shown in figure 1, chassis case 12 has
There is the central plate 121 being arranged on chassis overhang 111, shape and the chassis overhang 111 of central plate 121 are adapted.For example, center
Plate 121 and chassis overhang 111 are square structure.Be equipped with the four edges of central plate 121 to outer lower side set it is first oblique
The second oblique plate 123 is provided between plate 122, adjacent two first oblique plate 122.The bevel angle of first oblique plate 122 be 20~
40 degree, the bevel angle of the second oblique plate 123 is 20~40 degree.
As shown in Figures 1 to 5, chassis overhang 111 has two the first steel pipe supports 1111 for being in isosceles trapezoid, two first steel
Pipe holder 1111 and central plate 121 are perpendicular, and the plane where two first steel pipe support 1111 is relative by central plate 121
Both sides.Chassis overhang 111 also has two the second steel pipe supports of rectangle 1112, two second steel pipe supports 1112 and the phase of central plate 121
Vertical and be vertical between 2 first steel pipe supports 1111, the plane where two first steel pipe support 1111 passes through central plate
121 relative another both sides.Chassis body 11 has some and the first steel pipe support 1111 located at the first oblique inner surface of plate 122
Or vertically disposed the first stiffener plate of triangle 112 of the second steel pipe support 1112, and located at the second oblique inner surface of plate 123
Reinforcement block 113.In one preferred embodiment, the first stiffener plate 112 is the first stiffener plate of right angled triangle 112.
As shown in Figure 2 and Figure 6, the inclined-plane of the first stiffener plate 112 is vertical with the first oblique inner surface of plate 122 is fixedly connected
And the lower edge of the first oblique plate 122 is extended to, the vertical plane of the first stiffener plate 112 is fixedly connected with chassis overhang 111.
As shown in Figure 2 and Figure 7, reinforcement block 113 has some of setting that stretch out centered on reinforcement axle 1131
Individual the second stiffener plate of right angled triangle 1132, and by several tops of the second stiffener plate 1132 away from reinforcement axle 1131
The strengthening rib strip 1133 being fixedly connected.The inclined-plane of second stiffener plate 1132 fixed company vertical with the second oblique inner surface of plate 123
The lower edge of the second oblique plate 123 is connect and extends downward into always, reinforcement block 113 is close to the side of the first steel pipe support 1111
The side of second stiffener plate 1132 is fixedly connected with the first steel pipe support 1111.Reinforcement block 113 also has some triangles
3rd stiffener plate 1134, a top of the 3rd stiffener plate 1134 is with the second stiffener plate 1132 away from reinforcement axle 1131
Top is fixedly connected, the middle section position of the opposite side on the top of the 3rd stiffener plate 1134 and corresponding second stiffener plate 1132
It is fixedly connected.
As shown in Fig. 8, Fig. 9 and Figure 14, wheel mechanism 20 has to be fixed with chassis body mechanism 10 inner surface center
The wheel stand 23 of connection and fixing in the chassis overhang 111 of chassis body 11.Provided with mutual between the both sides of wheel stand 23
Parallel the first cross bar 231 and the second cross bar 232.
Wheel mechanism 20 has at least two driving wheel units being arranged at intervals between the cross bar 231 of wheel stand 23 and first
21, and at least one universal wheel unit 22 being located between the cross bar 232 of wheel stand 23 and second.When the driving quantity of wheel unit 21 is
During two or more, then multiple driving wheel units 21 are placed equidistant in the He of wheel stand 23 successively along the direction of the first cross bar 231
Between first cross bar 231；When it is two to drive the quantity of wheel unit 21, two driving wheel units 21 are respectively arranged on the first cross bar
231 end positions.When the universal quantity of wheel unit 22 is two or more, by multiple universal wheel units 22 along the second cross bar 232
Direction is placed equidistant between the cross bar 232 of wheel stand 23 and second successively；When the universal quantity of wheel unit 22 is two, by two
Individual universal wheel unit 22 is respectively arranged on the end positions of the second cross bar 232；When the universal quantity of wheel unit 22 is one, by universal wheel
Unit 22 is located at the centre position of the second cross bar 232, to reach the effect of balance.
As shown in Figure 10 and Figure 11, driving wheel unit 21 has with the vertically disposed driving wheel 211 of the first cross bar 231 (i.e.
The rotary shaft of driving wheel 211 be arranged in parallel with the direction of the first cross bar 231) and the driving that is fixedly connected with the side of driving wheel 211
Electric machine assembly 212, the side of motor component 212 is connected via the first runner assembly 213 with wheel stand 23, opposite side via
First spring assembly 214 is connected with the first cross bar 231.There is motor component 212 motor being connected with driving wheel 211 to install
Plate 2121, the motor 2122 being fixedly connected with motor mounting plate 2121, motor 2122 is close to the side of wheel stand 23
Provided with the first connecting plate 2123 being fixedly connected with motor mounting plate 2121, motor 2122 is another close to the first cross bar 231
Side is provided with the L-shaped spring bearer plate 2124 being fixedly connected with motor mounting plate 2121.First connecting plate 2123 and the first rotating group
Part 213 is fixedly connected, and the lateral part of L-shaped spring bearer plate 2124 is located at the upper surface of the first cross bar 231.
First runner assembly 213 is respectively arranged on the rotary shaft rack 2132 of the end positions of rotating shaft 2131 with rotating shaft 2131, two,
The second connecting plate 2133 being fixedly connected respectively with rotating shaft 2131, the first connecting plate 2123；The two ends of rotating shaft 2131 respectively via
Copper sheathing 2134 is socketed in rotary shaft rack 2132.
As shown in figure 15, the first spring assembly 214 has the transverse part located at L-shaped spring bearer plate 2124 successively from bottom to top
Divide the first spring washer 2141, the first spring 2142, the nut 2144 of second spring packing ring 2143 and first of upper surface.First bullet
Spring component 214, which also has to run through, is located at second spring packing ring 2143, the first spring 2142, the first spring washer 2141 and L-shaped bullet
First spring pull bar 2145 of the lateral part of spring pressing plate 2123, the first spring pull bar 2145 is passed through close to the one end of the first cross bar 231
It is rotatably arranged in by the first straight pin rod 2146 in the first cross bar 231.
As shown in Figure 12 and Figure 13, universal wheel unit 22 have universal wheel 221, respectively with universal wheel 221, the second cross bar
232 the second turning discreteness 222 being fixedly connected, and the second spring component 223 being connected with the second turning discreteness 222.Universal wheel
Two second spring components 223 in unit 22 are fixedly connected via the 5th connecting plate 224 with wheel stand 23 respectively.
The second turning discreteness 222 have be fixedly connected with the second cross bar 232 the 3rd connecting plate 2221, respectively with the 3rd company
The 4th connecting plate 2222 that fishplate bar 2221 rotates connection, universal wheel 221 is connected, the 3rd connecting plate 2221 and the 4th connecting plate 2222
Between be rotatably connected via the second straight pin rod 2224.4th connecting plate 2222 is provided with class Z at second spring component 223
Shape second spring pressing plate 2223；The Z-shaped second spring of class presses the lateral part of 2223 plates to be provided with second spring component 223.
As shown in figure 16, second spring component 223 has the transverse direction located at the Z-shaped spring bearer plate 2223 of class successively from bottom to top
The 3rd spring washer 2231, second spring 2232, the 4th spring washer 2233 and the second nut 2234 of portion of upper surface.Second
Spring assembly 223, which also has to run through, is located at the 4th spring washer 2233, second spring 2232, the 3rd spring washer 2231 and class Z
The second spring pull bar 2235 of the lateral part of shape spring bearer plate 2223, second spring pull bar 2235 is close to the 5th connecting plate 224
One end is rotatably arranged in the 5th connecting plate 224 via the 3rd straight pin rod 2236.
The present invention is with automatic driving car test car chassis operation principle：
Via downward the first angularly disposed oblique plate of the surrounding of central plate 121 of the chassis case 12 on test car chassis
122 and the second oblique structure of plate 123 so that when in security testing process a certain degree of collision occurs for automatic driving car,
Open on the inclined-plane that certain angle can be presented with ground via the first oblique plate 123 of oblique plate 122 and second on test car chassis
In the past, so as to avoid the generation of accident, improve the security of test.
The corresponding automatic driving car deadweight in automatic driving car test car chassis of the present invention is 150KG or so.Such as Figure 17
It is shown, when dolly chassis is bearing the weight within 150KG, pass through first groups of springs on automatic driving car test car chassis
Part 214 and second spring component 223 ensure that driving wheel 211 or universal wheel 221 are not inside contracted.
As shown in figure 18, when the load weight on test car chassis exceedes certain load scope, i.e. test car
Chassis is in high load condition, and the upward overload power in the direction born is passed to electric machine assembly 212 by driving wheel 211, via electricity
The overload power born is delivered separately to the first runner assembly 213 and the first spring assembly 214 by thermomechanical components 212.First rotating group
The rotating shaft 2131 of part 213 produces rotation via the upward overload power of action direction, so that drive motor component 212 is moved up；
The L-shaped spring bearer plate 2124 of electric machine assembly 212 is also moved up via the effect of the upward overload power in direction, so as to drive first
The first spring washer 2141, the spring 2142 of spring assembly 214 are moved upwardly together, via second spring packing ring 2143 and nut
2144 fix, it is ensured that spring 2142 occurs to stretch within the specific limits, it is achieved thereby that driving wheel 211 is moved up, form interior
Contracting.Meanwhile, the upward overload power in the direction born is passed to the second turning discreteness 222, the 4th connecting plate 2222 by universal wheel 221
Moved up by the upward overload power effect in direction, drive L-type second spring pressing plate 2223 to move upwardly together, so as to drive
The first spring washer 2141, the spring 2142 of first spring assembly 214 are moved upwardly together, it is achieved thereby that universal wheel 221 to
Upper movement, formation is inside contracted, that is, is realized when the load weight on test car chassis exceedes certain load scope, test car
The wheel mechanism on chassis be driven wheel 211 and universal wheel 221 inside contracted so that high capacity by chassis body mechanism 10
Bear, so as to reduce the loss to the consumable accessory of wheel mechanism 20.
When dolly chassis is bearing about 200KG weight, that is, during the automatic driving car heavy burden about 50KG tested, driving
Wheel 211 and universal wheel 221 can occur substantially to inside contract, and about inside contract 1.2cm.
When dolly chassis is bearing about 300KG weight, that is, during the automatic driving car heavy burden about 150KG tested, drive
Driving wheel 211 and universal wheel 221 can occur all to inside contract, now dolly chassis directly contact face load-bearing so that high capacity is the bottom of by
Disc main body mechanism 10 is born, so that reduce the loss to the consumable accessory of wheel mechanism 20, protection driving wheel 211 and universal wheel 221.
As shown in figure 17, when again the load weight on test car chassis returns to the certain load scope that can be born
When, i.e., when dolly chassis bears the weight within 150KG, the spring 2142 in the first spring assembly 214 needs to restore to the original state, then
Under the bullet of electric machine assembly 212 being connected via L-shaped spring bearer plate 2124 by driving wheel 211 and with driving wheel 211, so as to drive first
The spring assembly 214 of runner assembly 213 and first is together under bullet.Wherein, the lateral part of L-shaped spring bearer plate 2124 is horizontal via first
The spacing fixation of bar 231.Meanwhile, the spring 2142 in universal wheel 221 needs to restore to the original state, then via the Z-shaped spring bearer plate 2223 of class
By under the bullet of the second turning discreteness 222.Wherein, the Z-shaped spring bearer plate 2223 of class is via the spacing fixation of the 5th connecting plate 223, so that
Obtain test car chassis and return to normal use state.
Each preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art
Just many modifications and variations can be made according to the design of the present invention without creative work.Therefore, all skills in the art
Art personnel can be obtained by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of wheel mechanism on automatic driving car test car chassis, it is characterised in that
The wheel mechanism has a wheel stand, between the wheel stand both sides and one first cross bar that is parallel to each other
With one second cross bar；
The wheel mechanism has at least two spaced drivings located between the wheel stand and first cross bar
Wheel unit, and at least one universal wheel unit being located between the wheel stand and second cross bar；
The driving wheel unit has a driving wheel and a motor component being connected with the driving wheel, the motor
Component both sides be respectively provided with realize one first runner assembly being connected with the wheel stand that the driving wheel is inside contracted and
One first spring assembly being connected with first cross bar；
The universal wheel unit has a universal wheel, for realize that the universal wheel inside contracts respectively with the universal wheel, described
A second turning discreteness that second cross bar is fixedly connected and the second spring component being connected with the second turning discreteness.
2. the wheel mechanism on automatic driving car test car chassis as claimed in claim 1, it is characterised in that the driving electricity
Thermomechanical components have a motor mounting plate being connected with the driving wheel side, a driving being fixedly connected with the motor mounting plate
Motor, the motor connects close to the side of the wheel stand provided with one is fixedly connected with the motor mounting plate first
Fishplate bar, the motor is provided with a L-shaped being fixedly connected with the motor mounting plate close to the opposite side of first cross bar
Spring bearer plate；First connecting plate is fixedly connected with first runner assembly, and the transverse part of the L-shaped spring bearer plate sets up separately
In the first cross bar upper surface.
3. the wheel mechanism on automatic driving car test car chassis as claimed in claim 2, it is characterised in that described first turn
There are dynamic component a rotating shaft, two to be respectively arranged on the rotating shaft end positions and the rotating shaft branch being fixedly connected with the wheel stand
Frame and second connecting plate being fixedly connected respectively with the rotating shaft, first connecting plate.
4. the wheel mechanism on automatic driving car test car chassis as claimed in claim 3, it is characterised in that the rotating shaft two
End is socketed in the rotary shaft rack via a copper sheathing respectively.
5. the wheel mechanism on automatic driving car test car chassis as claimed in claim 2, it is characterised in that first bullet
Spring component has one first spring washer of the lateral part upper surface for being located at the L-shaped spring bearer plate, one successively from bottom to top
First spring, a second spring packing ring and one first nut；First spring assembly also has one to extend through located at described
Second spring packing ring, first spring, first spring washer, the lateral part of the L-shaped spring bearer plate and described
The first spring pull bar in one cross bar.
6. the wheel mechanism on automatic driving car test car chassis as claimed in claim 5, it is characterised in that first bullet
Spring pull bar is rotatably arranged in first cross bar close to described first cross bar one end via one first straight pin rod.
7. the wheel mechanism on automatic driving car test car chassis as claimed in claim 1, it is characterised in that described second turn
Dynamic component has the 3rd connecting plate being fixedly connected with second cross bar, one respectively with the 3rd connecting plate, described ten thousand
To the 4th connecting plate of wheel connection, it can turn via one second straight pin rod between the 3rd connecting plate and the 4th connecting plate
Dynamic connection；4th connecting plate is provided with the Z-shaped spring bearer plate of a class close to the second spring component side；The Z-shaped bullet of class
The lateral part upper surface of spring pressing plate is provided with the second spring component.
8. the wheel mechanism on automatic driving car test car chassis as claimed in claim 7, it is characterised in that second bullet
Spring component is fixedly connected via one the 5th connecting plate with the wheel stand.
9. the wheel mechanism on automatic driving car test car chassis as claimed in claim 8, it is characterised in that second bullet
Spring component from bottom to top successively have located at the Z-shaped spring bearer plate of the class lateral part upper surface one the 3rd spring washer,
One second spring, one the 4th spring washer and one second nut；The second spring component also has one to extend through located at institute
State the 4th spring washer, the second spring, the 3rd spring washer, the lateral part of the Z-shaped spring bearer plate of the class and institute
State the second spring pull bar in the 5th connecting plate.
10. the wheel mechanism on automatic driving car test car chassis as claimed in claim 9, it is characterised in that described second
Spring pull bar is rotatably arranged in the 5th connecting plate close to described 5th connecting plate one end via one the 3rd straight pin rod.
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| CN201710389141.0A CN107139671A (en) | 2017-05-27 | 2017-05-27 | The wheel mechanism on automatic driving car test car chassis |
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| CN201710389141.0A CN107139671A (en) | 2017-05-27 | 2017-05-27 | The wheel mechanism on automatic driving car test car chassis |
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| CN111532093A (en) * | 2020-04-26 | 2020-08-14 | 北京三快在线科技有限公司 | Mobile target vehicle and unmanned test system |
| CN111610035A (en) * | 2020-04-24 | 2020-09-01 | 曲亚文 | AEB pedestrian anticollision test drags chassis |
| CN112055809A (en) * | 2018-05-10 | 2020-12-08 | 东洋电机制造株式会社 | Chassis dynamometer |
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