CN104325855B - Anti-collision safety rear axle structure for rear-drive electric automobile - Google Patents
Anti-collision safety rear axle structure for rear-drive electric automobile Download PDFInfo
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- CN104325855B CN104325855B CN201410662068.6A CN201410662068A CN104325855B CN 104325855 B CN104325855 B CN 104325855B CN 201410662068 A CN201410662068 A CN 201410662068A CN 104325855 B CN104325855 B CN 104325855B
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Abstract
The invention discloses an anti-collision safety rear axle structure for a rear-drive electric automobile. The anti-collision safety rear axle structure comprises a transversely arranged cylindrical rear axle shell, a motor and a trailing arm, wherein a power mechanism is arranged in the middle of the rear axle shell, and comprises a differential mechanism which is fixedly arranged in the middle of the rear axle shell; the motor is fixed on the differential mechanism; an output shaft of the motor is connected with the differential mechanism; the output shaft of the differential mechanism is connected with a wheel through a transmission shaft in the rear axle shell; the front end of the trailing arm is connected with a frame main body at the chassis position of an automobile body; the rear end of the trailing arm is connected with the rear axle shell. The anti-collision safety rear axle structure is characterized in that a side collision-resistant buffer device and a damping suspension mechanism are also arranged between the rear axle shell and a frame. The anti-collision safety rear axle structure is capable of relieving impact force of lateral collision, and is good in safety, meanwhile, the vibration reducing performance and the damping performance can also be conveniently adjusted to be suitable for electric automobiles, and the anti-collision safety rear axle structure has the advantages of being good in vibration reducing effect, convenient and quick to install, good in overall stability, convenient to install and overhaul and the like.
Description
Technical field
The present invention relates to a kind of rear-guard formula electric motor car, more particularly to a kind of rear-guard formula electric automobile anticollision safety back axle
Structure.
Background technology
Electric motor car is originated as energy using battery, by parts such as controller, motors, converts electrical energy into mechanical energy fortune
It is dynamic, with the vehicle that control electric current size changes speed.First electric motor car was produced in 1834, and it is by DC motor Driver
's.Even to this day, electric motor car there occurs great variety, and type is also varied.Wherein, electric automobile (EV) is referred to vehicle-mounted
Power supply is power, is travelled with power wheel, meets road traffic, the vehicle of security legislation requirements.Due to environment
Affect relatively conventional automobile less, its prospect is extensively had an optimistic view of, but current techniques are still immature.
In terms of electric automobile,《Energy-conservation and new-energy automobile industrial development planning》Clearly report to the State Council,《Rule
Draw》It is thus lifted to national strategy height, it is intended to arrange the new office of automobile industry.As the seven great strategy new industries that country determines
One of, new-energy automobile will be up to 100,000,000,000 yuan in coming 10 years planned amount invested, and sales volume scale locks the first in the world.To 2020
Year, new-energy automobile realizes industrialization, and energy-conservation is reached advanced world standards with new-energy automobile and key components and partss technology, pure electricity
Electrical automobile and plug-in hybrid-power automobile market maintenance reach 5,000,000.Analyses and prediction, from 2012 to 2015,
Chinese market electric motor car sales volume average annual growth rate is up to 40% or so, and wherein most is sold from pure electric vehicle, by 2015,
China will become the electric motor car market of Fia.
Therefore to the research and development of the various technologies in electric automobile field, have become the direction of automotive expert research.
Existing electric automobile, the Structural Development of usually imitated general-utility car, such as CN201410249550 during research and development
A kind of disclosed rear axle assy, just belongs to this technology, wherein there is following defect：1st, when automobile is impacted, because automobile is received
Causing death is easiest to during lateral impact, and electric automobile is lighter compared with general-utility car due to weight, therefore if bear lateral
It is even more under impact events and is easily caused driver's death, safety is poor.2 in damping device, and damping spring and antivibrator are
Directly using the structure of the damping damping unit in automobile, will both integrate, but existing damping damping unit is equal
It is to design for general-utility car exploitation, the matching degree of its damping performance and damping capacity is and general-utility car adaptation, and electronic vapour
Car own wt is far below general-utility car, therefore existing damping damping unit cannot individually adjust damping performance and damping capacity,
If both performances are mismatched and can cause influencing each other for performance, therefore the integrated form damping damping unit of general-utility car is unsuitable for electricity
Apply in electrical automobile.3rd, wherein towing arm with weld or by two with straight line bolts fastening in the way of be fixedly connected on
On axle casing, damping effect is poor and installs inconvenient.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problem of the primary solution of the present invention is：How providing one kind can delay
Solution lateral impact impulsive force, safety is good, while damping performance and damping capacity can also conveniently be adjusted with suitable for electronic vapour
The rear-guard formula electric automobile anticollision safety rear axle structure of car application.
In order to solve above-mentioned technical problem, following technical scheme is present invention employs：
A kind of rear-guard formula electric automobile anticollision safety rear axle structure, including the rear axle housing body of the tubular of horizontally set,
Rear axle housing body two ends end is respectively arranged with brake drum, and brake drum outside is used for installing wheel；Rear axle housing body middle part is provided with dynamic
Force mechanisms, actuating unit includes being fixedly installed on the differential mechanism in the middle part of rear axle housing body, electronic also including what is be fixed on differential mechanism
Machine, motor output shaft is connected with differential mechanism, and differential output shaft is by the power transmission shaft and wheel phase inside rear axle housing body
Even；Also include that front end and the main body of vehicle frame positioned at chassis position are connected and the towing arm that is connected with rear axle housing body of rear end；Its
It is characterised by, side impact buffer unit is additionally provided between the rear axle housing body and vehicle frame；The side impact buffer unit, including
One bottom plate being vertically fixed on rear axle housing body, also including two upper mounted plates being fixed on vehicle frame, two upper solid
Fixed board is located at bottom plate both sides, and in level after the relative extension in outer end of upper mounted plate and bottom plate is formed with one staggeredly
Relative part, the relative side of bottom plate outer end both sides and two upper mounted plate outer ends and bottom plate is each provided with
The spring mounting groove of one level of relative, side impact buffer unit also includes being located at two buffer springs of bottom plate both sides,
Buffer spring is that helical spring and two ends are arranged in the spring mounting groove of upper mounted plate and bottom plate respectively in compressive state；
Also include damping mechanism, the damping mechanism, including being respectively arranged on the rear axle housing body at actuating unit two ends
Tubular antivibrator and damping spring, tubular antivibrator and damping spring lower end are connected with rear axle housing body, and upper end is connected with vehicle frame.
In the present invention, side impact buffer unit is provided between rear axle housing body and vehicle frame, so, when vehicle enclosure receives side
When clashing into, side impact buffer unit can be leaned on to enter row buffering, slow down the impact degree that lateral impact is caused to vehicle body, raising is driven
The person of sailing and the safety of passenger.In side impact buffer unit, two buffer springs of setting can be effectively absorbed from vehicle appoints
One side clashes into the impulsive force for producing carries out damping, improves safety.Two buffer springs are realized installing by three fixed plates, and
It is installed in mounting groove in squeezed state, simple structure is quick and easy for installation, and ensure that it is horizontally disposed with, at utmost improves
Damping, buffering effect to side impacting force.In damping mechanism, tubular antivibrator and damping spring are provided separately, can be with
Easily and flexibly adjustment selects the tubular antivibrator being adapted to and damping spring to be installed so as to damping performance and damping capacity energy
It is enough preferably to match with the situation of electric automobile, it is ensured that damping and damping, improve vehicle safety.
Further, described two upper mounted plate upper ends are fixed on upwards on a vehicle frame afterbody cross bar, and vehicle frame afterbody is horizontal
Bar is just fixed with one to being arranged above rear axle housing body and with main body of vehicle frame, described two upper mounted plate upper end phase departing directions
Side and vehicle frame afterbody cross bar between be provided with the reinforcement of triangle, bottom plate lower end both sides and rear axle housing body it
Between be provided with the reinforcement of triangle.
As such, it is possible to the horizontally disposed damping effect to ensure to side impacting force of spring is better ensured that, while setting
The reinforcement put, it is ensured that upper mounted plate and bottom plate can preferably bear the counteracting force of spring force, it is ensured that anti-
Side crash buffer unit it is solid and reliable.
Used as optimization, the damping spring is helical spring and is vertically mounted to the rear axle housing body at actuating unit two ends
On, the tubular damper is in damping spring outside and upper end is inclined and mounted on rearwardly and upwardly on vehicle frame.
So, damping spring is vertically installed, it is ensured that the damping effect on vertical direction, while ensureing helical spring edge
Length direction stress, increases the service life and avoids failure.Simultaneously tubular antivibrator is diagonally-installed can extend its length, Jin Erti
High-damping effect.
As optimization, main body of vehicle frame rear portion end positions each have one extend rearwardly and upwardly and for installing vehicle body after
The rear tailstock of shell covering, there is a level to be connected at rear tailstock middle part and the vehicle frame afterbody directly over rear axle housing body is horizontal
Bar, the rear axle housing body upper surface at the actuating unit two ends is provided with a spring mounting seat, and spring mounting seat includes a circle
Platform and the locating rod in the middle part of round platform, a spring are just being provided with to spring mounting seat and are being installed on the vehicle frame afterbody cross bar
Cylinder, the damping spring lower end is socketed and is fixed on the round platform of spring mounting seat, and upper end is arranged in spring mounting cylinder；It is described
The rear axle housing body lower surface of adjacent position has the mounting groove of a fovea superior on the outside of damping spring, is embedded in mounting groove and is welded with
One fixed seat, fixed seat is the elongated member that arranges along the longitudinal direction and transverse section in inverted U-shaped, and fixed seat rear and front end is each
From rear axle housing body front and back sides are extended, fixed seat back side top is welded with an antivibrator down journal seat, the tubular
Antivibrator lower end is hinged on antivibrator down journal seat, and upper end is hinged on the antivibrator upper journal seat for being welded on rear tailstock top
On.
So, main body of vehicle frame is located at chassis position, its rear portion extend back setting rear tailstock and vehicle frame afterbody it is horizontal
The structures such as bar are applied not only to install vehicle body back cover covering, can also facilitate damping spring, tubular antivibrator and gimbal lever etc.
The installation connection of component, also causes vehicle frame overall structure simpler compact.Wherein, the truncated cone-shaped that rear axle housing body upper surface is arranged
Spring mounting seat facilitate the installation of damping spring to fix, damping spring upper end be arranged on vehicle frame afterbody cross bar on spring install
It is very efficient and convenient and fixed reliable in cylinder.The fixed seat that rear axle housing body bottom is arranged, not only facilitates the peace of tubular antivibrator
Dress, but also the convenient installation connection for towing arm, and two installation junction points of towing arm rear end formation are enabled to, improve peace
Dress reliability.
Further, the towing arm is in integrally vertically arranged long block shape, and towing arm front end forward upward is inclined and leaned on
One horizontal hinge axis hole is hingedly mounted on a down-set towing arm journal stirrup of lower surface after main body of vehicle frame, after towing arm
End and upper surface are each provided with a horizontal hinge axis hole near back-end location, and are hingedly mounted on the fixed seat rear and front end
Position, three horizontal hinge axis holes are triangularly arranged.
So, the mount point of towing arm front end one, the mount point of rear end two, three points are triangularly arranged, it is possible to increase
The stable connection degree of towing arm and rear axle housing body, towing arm front end is inclined upwardly setting, can preferably by the driving of back axle
Power is transmitted to vehicle body, it is ensured that driven reliable and stable.
Further, the towing arm upper surface is plane, and lower surface is raised arcwall face, towing arm upper and lower surface
Side seamed edge has the flange of outwardly convex.
In such manner, it is possible to lean on simple structure to improve towing arm self-strength；Ensure the transmission of power.
Used as optimization, the towing arm includes the towing arm body of generally foundry goods, and towing arm body surface has electricity
Plating antirust coat.So, with beneficial to manufacture, good integral strength, long service life the advantages of.
Used as optimization, the towing arm body is provided with three yielding rubber circles positioned at three horizontal hinge hole sites, subtracts
Shake rubber ring middle part is coaxially arranged with the metal cylinder for installing hinge, and the yielding rubber circle surface has been uniformly arranged along width
The through hole in direction, through hole middle part both sides extend internally be connected to form perpendicular to yielding rubber loop diameter direction damping separate.
So, yielding rubber circle can improve the damping effect in the transmission dynamic process of towing arm, not only can slow down
The shock loading that towing arm itself bears, improves autoprotection effect, and strengthens vehicle body damping effect, improves vehicle ride
Comfortableness.The metal cylinder for arranging simultaneously, it is convenient that the impulsive force that hinge is passed over is delivered evenly to into rubber ring, improve to rubber
Cushion rubber protected effect, in addition, the through hole middle part in yielding rubber circle arranges the structure of cut-off, can be converted into radial impact force
Along the power of vertical radial direction, and then decomposition is sponged, and drastically increases damping effect.
Used as optimization, the rear axle housing body is located at the upper surface of the side position of actuating unit one and also has the balance for setting up
Free bearing under bar, the vehicle frame afterbody cross bar above another side position of the actuating unit has free bearing in the down-set gimbal lever,
It is hinged between free bearing in free bearing and the gimbal lever under the gimbal lever and the gimbal lever is installed.
So, the installation for facilitating the gimbal lever is fixed, and the gimbal lever is connected between vehicle frame and rear axle housing body, transmits left and right directions
Side force, it is to avoid vehicle body double swerve on back axle during traveling so as to keep balance.The gimbal lever is vertically arranged can
Improve best counterbalance effect.When being embodied as, the gimbal lever is difficult using the too high material of rigidity, easily using with certain elasticity
Material, to better ensure that the working effect of side impact buffer unit.
In sum, the present invention can alleviate lateral impact impulsive force, and safety is good, while can also conveniently adjustment damping
Performance and damping capacity are with suitable for electric automobile application, quick and easy for installation with good damping effect, whole structural stability
It is good, the advantages of conveniently installing and overhaul.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the side view that arm section partial structurtes are individually pulled in Fig. 1.
Fig. 3 is the structural representation of independent towing arm in Fig. 2.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
When being embodied as：As shown in Figure 1-Figure 3, a kind of rear-guard formula electric automobile anticollision safety rear axle structure, including
The rear axle housing body 1 of the tubular of horizontally set, the two ends end of rear axle housing body 1 is respectively arranged with brake drum 2, and the outside of brake drum 2 is used for
Installing wheel；The middle part of rear axle housing body 1 is provided with actuating unit, and actuating unit includes being fixedly installed on the difference at the middle part of rear axle housing body 1
Fast device 3, also including the motor 4 being fixed on differential mechanism 3, motor output shaft is connected with differential mechanism 3, and differential output shaft leads to
The power transmission shaft crossed inside rear axle housing body 1 is connected with wheel；Also include front end and the main body of vehicle frame 8 positioned at chassis position
The towing arm 5 that connected and rear end is connected with rear axle housing body；Side impact buffering dress is additionally provided between the rear axle housing body 1 and vehicle frame
Put.
Wherein, the side impact buffer unit, including a bottom plate 30 being vertically fixed on rear axle housing body, also wrap
Two upper mounted plates 31 being fixed on vehicle frame are included, two upper mounted plates 31 are located at the both sides of bottom plate 30, and upper mounted plate 31
Extend the part in level of relative after being formed with staggeredly, the bottom plate outer end two relatively with the outer end of bottom plate 30
The relative side of side and two upper mounted plate outer ends and bottom plate is each provided with the spring mounting groove of a level of relative, anti-side
Hitting buffer unit also includes being located at two buffer springs 32 of bottom plate both sides, and buffer spring 32 is helical spring and two ends point
Not Cheng compressive state be arranged in the spring mounting groove of upper mounted plate 31 and bottom plate 30.
Two buffer springs for so arranging can effectively absorb the impulsive force for clashing into generation from vehicle either side and enter
Row damping, improves safety.Two buffer springs are realized installing by three fixed plates, and are installed in mounting groove in squeezed state,
Simple structure, it is quick and easy for installation, and ensure that it is horizontally disposed with, at utmost improve the damping, buffering to side impacting force and imitate
Really.
Wherein, the upper end of described two upper mounted plates 31 is fixed on upwards on a vehicle frame afterbody cross bar 11, and vehicle frame afterbody is horizontal
Bar 11 is just to being arranged at rear axle housing body top and being fixed with one with main body of vehicle frame 17, and the upper end of described two upper mounted plates 31 is opposite
The reinforcement of triangle is provided between the side in direction and vehicle frame afterbody cross bar, the lower end both sides of the bottom plate 30 are with after
The reinforcement of triangle is provided between axle housing body.
As such, it is possible to the horizontally disposed damping effect to ensure to side impacting force of buffer spring is better ensured that, together
When the reinforcement that arranges, it is ensured that upper mounted plate and bottom plate can preferably bear the counteracting force of spring force, protect
Demonstrate,prove the solid and reliable of side impact buffer unit.
Wherein also include damping mechanism, wherein, the damping mechanism, including being respectively arranged at actuating unit two
Tubular antivibrator 6 and damping spring 7 on the rear axle housing body at end, tubular antivibrator 6 and the lower end of damping spring 7 are and rear axle housing body
1 is connected, and upper end is connected with vehicle frame.
So actuating unit is set directly on rear axle housing body, facilitates power output to transmit.Simultaneously by tubular antivibrator
It is provided separately with damping spring, can easily and flexibly adjusts the suitable tubular antivibrator of selection and damping spring is installed,
Its damping performance and damping capacity is set preferably to match with the situation of electric automobile, it is ensured that damping and damping,
Improve vehicle safety.
Wherein, the damping spring 7 is for helical spring and is vertically mounted on the rear axle housing body 1 at actuating unit two ends,
The tubular antivibrator 6 is located at damping spring outside and upper end is inclined and mounted on rearwardly and upwardly on vehicle frame.So, damping spring is erected
To installation, it is ensured that the damping effect on vertical direction, while ensureing helical spring stress along its length, prolongation uses the longevity
Life avoids failure.Simultaneously tubular antivibrator is diagonally-installed can extend its length, and then improve damping.
Wherein, the rear portion end positions of main body of vehicle frame 8 each have one and extend rearwardly and upwardly and for installing vehicle body back cover
The rear tailstock 9 of covering, there is at the middle part of rear tailstock 9 level to be connected and the vehicle frame afterbody directly over rear axle housing body 1 is horizontal
Bar 11, the rear axle housing body upper surface at the actuating unit two ends is provided with a spring mounting seat 12, and spring mounting seat 12 includes
One round platform and the locating rod in the middle part of round platform, are just being provided with a spring to spring mounting seat on the vehicle frame afterbody cross bar
Mounting cylinder 13, the lower end of the damping spring 7 is socketed and is fixed on the round platform of spring mounting seat 12, and upper end is installed installed in spring
In cylinder 13；The rear axle housing body lower surface of the outside adjacent position of the damping spring 7 has the mounting groove of a fovea superior, in mounting groove
It is embedded and is welded with a fixed seat 14, fixed seat 14 is the elongated member that arranges along the longitudinal direction and transverse section in inverted U-shaped,
Rear axle housing body front and back sides are each extended in the rear and front end of fixed seat 14, and the back side top of fixed seat 14 is welded with a damping
Device down journal seat 15, the lower end of tubular antivibrator 6 is hinged on antivibrator down journal seat 15, and upper end is hinged on and is welded on rear tail
On the antivibrator upper journal seat 16 on frame top.
So, main body of vehicle frame is located at chassis position, its rear portion extend back setting rear tailstock and vehicle frame afterbody it is horizontal
The structures such as bar are applied not only to install vehicle body back cover covering, can also facilitate damping spring, tubular antivibrator and gimbal lever etc.
The installation connection of component, also causes vehicle frame overall structure simpler compact.Wherein, the truncated cone-shaped that rear axle housing body upper surface is arranged
Spring mounting seat facilitate the installation of damping spring to fix, damping spring upper end be arranged on vehicle frame afterbody cross bar on spring install
It is very efficient and convenient and fixed reliable in cylinder.The fixed seat that rear axle housing body bottom is arranged, not only facilitates the peace of tubular antivibrator
Dress, but also the convenient installation connection for towing arm, and two installation junction points of towing arm rear end formation are enabled to, improve peace
Dress reliability.
Wherein, it is in vertically arranged long block shape that the towing arm 5 is overall, and the front end forward upward of towing arm 5 is inclined and by one
Individual horizontal hinge axis hole is hingedly mounted on a down-set towing arm journal stirrup 17 of lower surface after main body of vehicle frame, towing arm 5
Rear end and upper surface are each provided with a horizontal hinge axis hole near back-end location, and are hingedly mounted on before and after the fixed seat 14
End positions, three horizontal hinge axis holes are triangularly arranged.
So, the mount point of towing arm front end one, the mount point of rear end two, three points are triangularly arranged, it is possible to increase
The stable connection degree of towing arm and rear axle housing body, towing arm front end is inclined upwardly setting, can preferably by the driving of back axle
Power is transmitted to vehicle body, it is ensured that driven reliable and stable.
Wherein, the upper surface of the towing arm 5 is plane, and lower surface is raised arcwall face, the side of the upper and lower surface of towing arm 5
Face seamed edge has the flange 18 of outwardly convex.
In such manner, it is possible to lean on simple structure to improve towing arm self-strength；Ensure the transmission of power.
Wherein, the towing arm 5 includes the towing arm body of generally foundry goods, and towing arm body surface has plating anti-
Rusty scale.So, with beneficial to manufacture, good integral strength, long service life the advantages of.
Wherein, the towing arm body is provided with three yielding rubber circles 19, damping positioned at three horizontal hinge hole sites
The middle part of rubber ring 19 is coaxially arranged with the metal cylinder 20 for installing hinge, and the yielding rubber circle surface has been uniformly arranged along wide
The through hole 21 in degree direction, the middle part both sides of through hole 21 extend internally to be connected to form and subtract perpendicular to yielding rubber circle 19 is diametric
Shake cut-off.
So, yielding rubber circle can improve the damping effect in the transmission dynamic process of towing arm, not only can slow down
The shock loading that towing arm itself bears, improves autoprotection effect, and strengthens vehicle body damping effect, improves vehicle ride
Comfortableness.The metal cylinder for arranging simultaneously, it is convenient that the impulsive force that hinge is passed over is delivered evenly to into rubber ring, improve to rubber
Cushion rubber protected effect, in addition, the through hole middle part in yielding rubber circle arranges the structure of cut-off, can be converted into radial impact force
Along the power of vertical radial direction, and then decomposition is sponged, and drastically increases damping effect.
Wherein, the rear axle housing body 1 is located at the upper surface of the side position of actuating unit one also with the gimbal lever for setting up
Lower free bearing, the vehicle frame afterbody cross bar 11 above another side position of the actuating unit has free bearing in the down-set gimbal lever,
It is hinged between free bearing in free bearing and the gimbal lever under the gimbal lever and the gimbal lever 22 is installed.
So, the installation for facilitating the gimbal lever is fixed, and the gimbal lever is connected between vehicle frame and rear axle housing body, transmits left and right directions
Side force, it is to avoid vehicle body double swerve on back axle during traveling so as to keep balance.The gimbal lever is vertically arranged can
Improve best counterbalance effect.When being embodied as, the gimbal lever is difficult using the too high material of rigidity, easily using with certain elasticity
Material, to better ensure that the working effect of side impact buffer unit.
Claims (7)
1. a kind of rear-guard formula electric automobile anticollision safety rear axle structure, including the rear axle housing body of the tubular of horizontally set, after
Axle housing body two ends end is respectively arranged with brake drum, and brake drum outside is used for installing wheel；Rear axle housing body middle part arranges dynamic
Mechanism, actuating unit includes being fixedly installed on the differential mechanism in the middle part of rear axle housing body, also including the motor being fixed on differential mechanism,
Motor output shaft is connected with differential mechanism, and differential output shaft is connected by the power transmission shaft inside rear axle housing body with wheel；
Also include that front end and the main body of vehicle frame positioned at chassis position are connected and the towing arm that is connected with rear axle housing body of rear end；Its feature
It is that side impact buffer unit is additionally provided between the rear axle housing body and vehicle frame；The side impact buffer unit, including one
The bottom plate being vertically fixed on rear axle housing body, also including two upper mounted plates being fixed on vehicle frame, two upper mounted plates
Positioned at bottom plate both sides, and in level of relative after the extension relatively of the outer end of upper mounted plate and bottom plate is formed with one staggeredly
Part, the relative side of bottom plate outer end both sides and two upper mounted plate outer ends and bottom plate is each provided with one
The spring mounting groove of level of relative, side impact buffer unit also includes being located at two buffer springs of bottom plate both sides, buffering
Spring is that helical spring and two ends are arranged in the spring mounting groove of upper mounted plate and bottom plate respectively in compressive state；Also wrap
Include damping mechanism, the damping mechanism, including the tubular being respectively arranged on the rear axle housing body at actuating unit two ends
Antivibrator and damping spring, tubular antivibrator and damping spring lower end are connected with rear axle housing body, and upper end is connected with vehicle frame；It is described
Damping spring is helical spring and to be vertically mounted on the rear axle housing body at actuating unit two ends, and the tubular damper is in subtracting
Shake spring outwards and upper end is inclined and mounted on rearwardly and upwardly on vehicle frame；
Main body of vehicle frame rear portion end positions each have one extend rearwardly and upwardly and for installing vehicle body back cover covering after
There is a level to be connected and the vehicle frame afterbody cross bar directly over rear axle housing body at tailstock, rear tailstock middle part, the engine
The rear axle housing body upper surface at structure two ends is provided with a spring mounting seat, and spring mounting seat includes a round platform and in round platform
The locating rod in portion, is just being provided with a spring mounting cylinder, the damping spring to spring mounting seat on the vehicle frame afterbody cross bar
Lower end is socketed and is fixed on the round platform of spring mounting seat, and upper end is arranged in spring mounting cylinder；Phase on the outside of the damping spring
The rear axle housing body lower surface that ortho position is put has the mounting groove of a fovea superior, and a fixed seat is embedded and be welded with mounting groove, Gu
Reservation is the elongated member that arranges along the longitudinal direction and transverse section in inverted U-shaped, and back axle is each extended in fixed seat rear and front end
Housing front and back sides, fixed seat back side top is welded with an antivibrator down journal seat, the tubular antivibrator lower end hinge
It is connected on antivibrator down journal seat, upper end is hinged on the antivibrator upper journal seat for being welded on rear tailstock top.
2. rear-guard formula electric automobile anticollision safety rear axle structure as claimed in claim 1, it is characterised in that described two
Upper mounted plate upper end is fixed on upwards on a vehicle frame afterbody cross bar, vehicle frame afterbody cross bar just to be arranged at rear axle housing body top and
It is fixed with one with main body of vehicle frame, sets between the side of described two upper mounted plate upper end phase departing directions and vehicle frame afterbody cross bar
The reinforcement of triangle is equipped with, the reinforcement of triangle is provided between bottom plate lower end both sides and rear axle housing body.
3. rear-guard formula electric automobile anticollision safety rear axle structure as claimed in claim 1, it is characterised in that the towing
Arm is in integrally vertically arranged long block shape, and towing arm front end forward upward is inclined and is hingedly mounted on car by a horizontal hinge axis hole
After frame body on a down-set towing arm journal stirrup of lower surface, towing arm rear end and upper surface are each near back-end location
A horizontal hinge axis hole is provided with, and is hingedly mounted on fixed seat rear and front end position, three horizontal hinge axis holes are in triangle
Shape is arranged.
4. rear-guard formula electric automobile anticollision safety rear axle structure as claimed in claim 1, it is characterised in that the towing
Arm upper surface is plane, and lower surface is raised arcwall face, and the side seamed edge of towing arm upper and lower surface has turning over for outwardly convex
Side.
5. rear-guard formula electric automobile anticollision safety rear axle structure as claimed in claim 1, it is characterised in that the towing
Arm includes the towing arm body of generally foundry goods, and towing arm body surface has plating antirust coat.
6. rear-guard formula electric automobile anticollision safety rear axle structure as claimed in claim 1, it is characterised in that the towing
Arm body is provided with three yielding rubber circles positioned at three horizontal hinge hole sites, yielding rubber circle middle part be coaxially arranged with for
The metal cylinder of hinge is installed, the yielding rubber circle surface is uniformly arranged through hole in the width direction, and through hole middle part two is lateral
Interior extension is connected to form the damping perpendicular to yielding rubber loop diameter direction and separates.
7. rear-guard formula electric automobile anticollision safety rear axle structure as claimed in claim 1, it is characterised in that the back axle
Housing is located at the upper surface of the side position of actuating unit one and also has free bearing under the gimbal lever for setting up, and the actuating unit is another
Vehicle frame afterbody cross bar above side position has free bearing in the down-set gimbal lever, free bearing in free bearing and the gimbal lever under the gimbal lever
Between be hinged the gimbal lever be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662068.6A CN104325855B (en) | 2014-11-19 | 2014-11-19 | Anti-collision safety rear axle structure for rear-drive electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662068.6A CN104325855B (en) | 2014-11-19 | 2014-11-19 | Anti-collision safety rear axle structure for rear-drive electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104325855A CN104325855A (en) | 2015-02-04 |
| CN104325855B true CN104325855B (en) | 2017-05-17 |
Family
ID=52400713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662068.6A Active CN104325855B (en) | 2014-11-19 | 2014-11-19 | Anti-collision safety rear axle structure for rear-drive electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107444043B (en) * | 2017-08-08 | 2023-04-28 | 河南新中基交通科技发展有限公司 | Rear suspension device of electric automobile |
| CN110901321A (en) * | 2019-11-07 | 2020-03-24 | 华南农业大学 | Semi-active suspension of hillside orchard conveyor and simulation analysis method |
Citations (5)
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| DE2362199A1 (en) * | 1973-12-14 | 1975-06-19 | Volkswagenwerk Ag | Rigid rear axle for car - with rigid trailing arms mounted with lateral damping on chassis for improved cornering |
| US5427404A (en) * | 1994-06-15 | 1995-06-27 | Paccar Inc. | Stiff beam suspension system |
| CN2880560Y (en) * | 2005-12-16 | 2007-03-21 | 辽宁曙光汽车集团股份有限公司 | Light automobile rear independent suspension drive axle assembly |
| CN201670099U (en) * | 2010-04-19 | 2010-12-15 | 鲍文光 | Postpositive rear-drive chassis of ultra-miniature low-speed pure electric car |
| CN202088837U (en) * | 2011-05-31 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Improving structure of rear axle of suspension torsion beam for vehicle |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2362199A1 (en) * | 1973-12-14 | 1975-06-19 | Volkswagenwerk Ag | Rigid rear axle for car - with rigid trailing arms mounted with lateral damping on chassis for improved cornering |
| US5427404A (en) * | 1994-06-15 | 1995-06-27 | Paccar Inc. | Stiff beam suspension system |
| CN2880560Y (en) * | 2005-12-16 | 2007-03-21 | 辽宁曙光汽车集团股份有限公司 | Light automobile rear independent suspension drive axle assembly |
| CN201670099U (en) * | 2010-04-19 | 2010-12-15 | 鲍文光 | Postpositive rear-drive chassis of ultra-miniature low-speed pure electric car |
| CN202088837U (en) * | 2011-05-31 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Improving structure of rear axle of suspension torsion beam for vehicle |
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| CN104325855A (en) | 2015-02-04 |
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Effective date of registration: 20181228 Address after: No. 50 Yongding Road, Haidian District, Beijing, 100854 (Beijing 142 mailbox 208 sub-box) Patentee after: Beijing Mechanical Equipment Research Institute Address before: 401519 Chongqing Hechuan Industrial Park Gaoyang section Patentee before: CHONGQING YONGCHUN NEW ENERGY TECHNOLOGY CO., LTD. |