CN104325855A - 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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- CN104325855A CN104325855A CN201410662068.6A CN201410662068A CN104325855A CN 104325855 A CN104325855 A CN 104325855A CN 201410662068 A CN201410662068 A CN 201410662068A CN 104325855 A CN104325855 A CN 104325855A
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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 battery-driven car, particularly relate to a kind of rear-guard formula electronlmobil anticollision safety-type rear axle structure.
Background technology
Battery-driven car is using battery as energy source, by the parts such as controller, motor, is mechanical energy motion by electric energy conversion, to control the vehicle that size of current changes speed.First battery-driven car produced in 1834, and it is by DC motor Driver.Even to this day, battery-driven car there occurs great variety, and type is also varied.Wherein, it is power that electronlmobil (EV) refers to vehicle power, drives wheels travel with motor, meets the vehicle of arteries of communication, legislative control on safety requirements.Due to less relative to orthodox car to environmental concerns, its prospect is extensively had an optimistic view of, but current techniques is still immature.
In electronlmobil, " energy-conservation and new-energy automobile industrial development planning " clearly reports to the State Council, and " planning " is thus lifted to national strategy height, is intended to arrange the new office of automobile industry.As one of seven great strategy new industries that country determines, new-energy automobile will reach 1,000 hundred million yuan in coming 10 years planned amount invested, and sales volume scale locks the first in the world.To the year two thousand twenty, new-energy automobile realizes industrialization, energy-conservationly reaches advanced world standards with new-energy automobile and key components and parts technology, and pure electric automobile and plug-in hybrid-power automobile market maintenance reach 5,000,000.Analyses and prediction, from 2012 to 2015, Chinese market battery-driven car sales volume average annual growth rate will reach about 40%, and wherein major part is sold from pure electric vehicle, and by 2015, China will become the battery-driven car market of Fia.
Therefore the research and development to the various technology in electronlmobil field, become the direction of automotive expert research.
Existing electronlmobil, it is generally the Structural Development of imitated general-utility car during research and development, such as a kind of back axle assembly disclosed in CN201410249550, just belong to this technology, wherein there is following defect: when 1, automobile is impacted, due to automobile by lateral impact time the easiest causing death, and electronlmobil due to weight lighter compared with general-utility car, if therefore easily cause chaufeur dead under bearing lateral impact situation especially, safety is poor.2 in shock absorption device, damping spring and damper are the structures of the damping damping arrangement directly adopted in automobile, be about to both integrate, but existing damping damping arrangement is all for general-utility car development and Design, the matching degree of its damping performance and damping capacity adapts to general-utility car, and electronlmobil own wt is far below general-utility car, therefore existing damping damping arrangement cannot regulate separately damping performance and damping capacity, if both performances are not mated can cause influencing each other of performance, therefore the integrated form damping damping arrangement of general-utility car is unsuitable for applying in electronlmobil.3, wherein towing arm is to weld or to be fixedly connected on axle casing in two modes with the bolted of straight-though arrangement, and damping effect is poor and installation is inconvenient.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical matters that the present invention primarily solves is: how to provide one can alleviate lateral impact impulsive force, safety is good, conveniently can also adjust damping performance and damping capacity to be applicable to the rear-guard formula electronlmobil anticollision safety-type rear axle structure of electronlmobil application simultaneously.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of rear-guard formula electronlmobil anticollision safety-type rear axle structure, comprise the rear axle housing body of the tubular of horizontally set, end, rear axle housing body two ends is respectively arranged with brake wheel, for installing wheel outside brake wheel, actuating unit is provided with in the middle part of rear axle housing body, actuating unit comprises the diff be fixedly installed in the middle part of rear axle housing body, also comprise the electrical motor be fixed on diff, motor output shaft is connected with diff, and differential output shaft is connected with wheel by the transmission shaft being positioned at rear axle housing body inside, also comprise front end to be connected with the main body of vehicle frame being positioned at chassis position and the towing arm that is connected with rear axle housing body of rear end, it is characterized in that, be also provided with anti-side between described rear axle housing body and vehicle frame and hit shock absorber, shock absorber is hit in described anti-side, comprise a bottom plate be vertically fixed on rear axle housing body, also comprise two upper mounted plates be fixed on vehicle frame, two upper mounted plates are positioned at bottom plate both sides, and upper mounted plate relative with the outer end of bottom plate extend to form one staggered after the part relative in level, the side relative with bottom plate with two upper mounted plate outer ends, both sides, described bottom plate outer end is respectively provided with the relative spring fitting groove of a level, anti-side is hit shock absorber and is also comprised two recoil springs being positioned at bottom plate both sides, recoil spring is coil spring and two ends are arranged in the spring fitting groove of upper mounted plate and bottom plate in compressive state respectively, also comprise damping mechanism, described damping mechanism, comprise the tubular damper on the rear axle housing body being arranged at actuating unit two ends respectively and damping spring, tubular damper is all connected with rear axle housing body with damping spring lower end, and upper end is connected with vehicle frame.
In the present invention, between rear axle housing body and vehicle frame, be provided with anti-side hit shock absorber, like this, when vehicle enclosure is by lateral impact, anti-side can be leaned on to hit shock absorber cushion, slow down the impact degree that lateral impact causes vehicle body, improve the safety of chaufeur and passenger.Anti-side is hit in shock absorber, and two recoil springs of setting effectively can absorb the impulsive force produced from the arbitrary side impact of vehicle and carry out damping, improve safety.Two recoil springs realize installing by three adapter plates, and are installed in mounting groove in squeezed state, and structure is simple, quick and easy for installation, and ensure that it is horizontally disposed with, and at utmost improves the damping, buffering effect to side impacting force.In damping mechanism, tubular damper and damping spring are provided separately, can adjust easily and flexibly and select applicable tubular damper and damping spring to install, its damping performance and damping capacity are matched with the situation of electronlmobil better, ensure that damping and damping, improve vehicle safety.
Further, described two upper mounted plate upper ends are upwards fixed on a vehicle frame afterbody cross bar, vehicle frame afterbody cross bar just to be arranged at above rear axle housing body and and main body of vehicle frame be fixed with one, described two upper mounted plate upper ends deviate from mutually between the side in direction and vehicle frame afterbody cross bar and are provided with leg-of-mutton reinforced rib, are provided with leg-of-mutton reinforced rib between described both sides, bottom plate lower end and rear axle housing body.
Like this, can ensure better spring be horizontally disposed with ensure the damping effect to side impacting force, the reinforced rib simultaneously arranged, can ensure that upper mounted plate and bottom plate can bear the antagonistic force of spring force better, ensure that the solid and reliable of shock absorber is hit in anti-side.
As optimization, described damping spring is coil spring and is vertically arranged on the rear axle housing body at actuating unit two ends, described tubular damper outside damping spring and upper end be inclined and mounted on rearwardly and upwardly on vehicle frame.
Like this, damping spring is vertically installed, and can ensure the damping effect on vertical direction, ensures that coil spring is stressed along its length simultaneously, increases the service life and avoids losing efficacy.The oblique installation of tubular damper simultaneously can extend its length, and then improves damping.
As optimization, main body of vehicle frame rear portion end positions has one separately and to extend rearwardly and upwardly and for the rear tailstock of installation car shell cover panel after one's death, there is in the middle part of rear tailstock a level be connected and be positioned at the vehicle frame afterbody cross bar directly over rear axle housing body, the rear axle housing body upper surface at described actuating unit two ends is provided with a spring mounting seat, spring mounting seat comprises a round platform and is positioned at the radius stay in the middle part of round platform, described vehicle frame afterbody cross bar is just provided with a spring fitting cylinder to spring mounting seat, described damping spring lower end is socketed and is fixed on the round platform of spring mounting seat, upper end is arranged in spring fitting cylinder, outside described damping spring, the rear axle housing body lower surface of adjacent position has the mounting groove of a fovea superior, be embedded in mounting groove and be welded with a permanent seat, permanent seat is the elongated member that arranges along the longitudinal direction and transversal surface is inverted U-shaped, permanent seat rear and front end extends rear axle housing body front and back sides separately, permanent seat back side top is welded with a damper down journal seat, described tubular damper lower end is hinged on damper down journal seat, on the damper upper journal seat on upper end thereof tailstock top after being welded on.
Like this, main body of vehicle frame is positioned at chassis position, its rear portion extends back the rear tailstock and the structure such as vehicle frame afterbody cross bar that arrange not only for installation car shell cover panel after one's death, the installation of the components such as damping spring, tubular damper and trammel beam can also be facilitated to connect, also make vehicle frame integral structure more simply compact.Wherein, the spring mounting seat of truncated cone-shaped that rear axle housing body upper surface is arranged facilitates the installation of damping spring to fix, and damping spring upper end is arranged in the spring fitting cylinder on vehicle frame afterbody cross bar, very efficient and convenient and reliably fixing.The permanent seat that rear axle housing body bottom is arranged, not only facilitates the installation of tubular damper, but also the convenient installation for towing arm connects, and towing arm rear end can be made to form two installation point of connection, improves installation reliability.
Further, described towing arm entirety is in the vertical long block shape arranged, towing arm front end forward upward tilts and on the towing arm journal stirrup that lower surface is arranged downwards after being hingedly mounted on main body of vehicle frame by a horizontal hinge axis hole, towing arm rear end and upper surface are respectively provided with a horizontal hinge axis hole near back-end location, and being hingedly mounted on position, described permanent seat rear and front end, three horizontal hinge axis holes are triangularly arranged.
Like this, one, towing arm front end attachment point, two, rear end attachment point, three points are triangularly arranged, and can improve the stable connection degree of towing arm and rear axle housing body, and towing arm front end is inclined upwardly setting, can better by the propulsive effort transmission of back axle to vehicle body, ensure drive reliable and stable.
Further, described towing arm upper surface is plane, and lower surface is protruding arcwall face, and the side seamed edge of towing arm upper and lower surface has the flange of outwardly convex.
Like this, simple structure can be leaned on to improve towing arm self-strength; Ensure the transmission of power.
As optimization, described towing arm comprises the overall towing arm body for foundry goods, and towing arm body surface has plating rust proof layer.Like this, have and be beneficial to manufacture, good integral strength, the advantages such as long service life.
As optimization, described towing arm body is positioned at three horizontal hinge axis hole positions and is provided with three yielding rubber circles, the metal cylinder for installing hinge is coaxially arranged with in the middle part of yielding rubber circle, the uniform through hole being provided with broad ways in described yielding rubber circle surface, in the middle part of through hole, the both sides damping be connected to form perpendicular to yielding rubber loop diameter direction that extends internally cuts off.
Like this, yielding rubber circle can improve the damping effect in the transferring power process of towing arm, not only can slow down the impact load that towing arm self bears, and improves autoprotection effect, and strengthens vehicle body damping effect, improves vehicle riding comfort.The metal cylinder simultaneously arranged; the convenient impulsive force passed over by hinge is delivered evenly to rubber ring; improve rubber ring protected effect; in addition; the structure of partition is set in the middle part of the through hole in yielding rubber circle; radial impact power can be converted into along vertical diameter to power, and then decompose sponge, drastically increase damping effect.
As optimization, the upper surface that described rear axle housing body is positioned at actuating unit one side position also has free bearing under the trammel beam upwards arranged, vehicle frame afterbody cross bar above described actuating unit opposite side position has free bearing on the trammel beam that arranges downwards, hingedly between free bearing on free bearing and trammel beam under trammel beam is provided with trammel beam.
Like this, facilitate the installation of trammel beam to fix, trammel beam is connected between vehicle frame and rear axle housing body, transmits the side force of left and right directions, avoids vehicle body double swerve on back axle in driving process, makes it keep balance.Trammel beam vertically arranges and can improve best counterbalance effect.During concrete enforcement, the material that trammel beam not easily adopts rigidity too high, easily adopts and has certain elastomeric material, to ensure that the working effect of shock absorber is hit in anti-side better.
In sum, the present invention can alleviate lateral impact impulsive force, and safety is good, conveniently can also adjust damping performance and damping capacity to be applicable to electronlmobil application simultaneously, there is good damping effect, quick and easy for installation, whole structural stability is good, the advantages such as convenient installation and maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the lateral plan of towing arm part local structure separately in Fig. 1.
Fig. 3 is the structural representation of independent towing arm in Fig. 2.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
During concrete enforcement: as shown in Figure 1-Figure 3, a kind of rear-guard formula electronlmobil anticollision safety-type rear axle structure, comprise the rear axle housing body 1 of the tubular of horizontally set, end, rear axle housing body 1 two ends is respectively arranged with brake wheel 2, for installing wheel outside brake wheel 2; Actuating unit is provided with in the middle part of rear axle housing body 1, actuating unit comprises the diff 3 be fixedly installed in the middle part of rear axle housing body 1, also comprise the electrical motor 4 be fixed on diff 3, motor output shaft is connected with diff 3, and differential output shaft is connected with wheel by the transmission shaft being positioned at rear axle housing body 1 inside; Also comprise front end to be connected with the main body of vehicle frame 8 being positioned at chassis position and the towing arm 5 that is connected with rear axle housing body of rear end; Also be provided with anti-side between described rear axle housing body 1 and vehicle frame and hit shock absorber.
Wherein, shock absorber is hit in described anti-side, comprise a bottom plate 30 be vertically fixed on rear axle housing body, also comprise two upper mounted plates 31 be fixed on vehicle frame, two upper mounted plates 31 are positioned at bottom plate 30 both sides, and upper mounted plate 31 relative with the outer end of bottom plate 30 extend to form one staggered after the part relative in level, the side relative with bottom plate with two upper mounted plate outer ends, both sides, described bottom plate outer end is respectively provided with the relative spring fitting groove of a level, anti-side is hit shock absorber and is also comprised two recoil springs 32 being positioned at bottom plate both sides, recoil spring 32 is coil spring and two ends are arranged in the spring fitting groove of upper mounted plate 31 and bottom plate 30 in compressive state respectively.
Two recoil springs of such setting effectively can absorb the impulsive force produced from the arbitrary side impact of vehicle and carry out damping, improve safety.Two recoil springs realize installing by three adapter plates, and are installed in mounting groove in squeezed state, and structure is simple, quick and easy for installation, and ensure that it is horizontally disposed with, and at utmost improves the damping, buffering effect to side impacting force.
Wherein, described two upper mounted plate 31 upper ends are upwards fixed on a vehicle frame afterbody cross bar 11, vehicle frame afterbody cross bar 11 just to be arranged at above rear axle housing body and and main body of vehicle frame 17 be fixed with one, described two upper mounted plate 31 upper ends deviate from mutually between the side in direction and vehicle frame afterbody cross bar and are provided with leg-of-mutton reinforced rib, are provided with leg-of-mutton reinforced rib between described both sides, bottom plate 30 lower end and rear axle housing body.
Like this, can ensure better recoil spring be horizontally disposed with ensure the damping effect to side impacting force, the reinforced rib simultaneously arranged, can ensure that upper mounted plate and bottom plate can bear the antagonistic force of spring force better, ensure that the solid and reliable of shock absorber is hit in anti-side.
Wherein also comprise damping mechanism, wherein, described damping mechanism, comprises the tubular damper 6 on the rear axle housing body being arranged at actuating unit two ends respectively and damping spring 7, tubular damper 6 is all connected with rear axle housing body 1 with damping spring 7 lower end, and upper end is connected with vehicle frame.
Like this actuating unit is set directly on rear axle housing body, facilitates Power output transmission.Tubular damper and damping spring are provided separately simultaneously, can adjust easily and flexibly and select applicable tubular damper and damping spring to install, its damping performance and damping capacity are matched with the situation of electronlmobil better, ensure that damping and damping, improve vehicle safety.
Wherein, described damping spring 7 is coil spring and is vertically arranged on the rear axle housing body 1 at actuating unit two ends, and described tubular damper 6 is positioned at outside damping spring and upper end and is inclined and mounted on rearwardly and upwardly on vehicle frame.Like this, damping spring is vertically installed, and can ensure the damping effect on vertical direction, ensures that coil spring is stressed along its length simultaneously, increases the service life and avoids losing efficacy.The oblique installation of tubular damper simultaneously can extend its length, and then improves damping.
Wherein, main body of vehicle frame 8 rear portion end positions has one separately and to extend rearwardly and upwardly and for the rear tailstock 9 of installation car shell cover panel after one's death, there is in the middle part of rear tailstock 9 level be connected and be positioned at the vehicle frame afterbody cross bar 11 directly over rear axle housing body 1, the rear axle housing body upper surface at described actuating unit two ends is provided with a spring mounting seat 12, spring mounting seat 12 comprises a round platform and is positioned at the radius stay in the middle part of round platform, described vehicle frame afterbody cross bar is just provided with a spring fitting cylinder 13 to spring mounting seat, described damping spring 7 lower end is socketed and is fixed on the round platform of spring mounting seat 12, upper end is arranged in spring fitting cylinder 13, outside described damping spring 7, the rear axle housing body lower surface of adjacent position has the mounting groove of a fovea superior, be embedded in mounting groove and be welded with a permanent seat 14, permanent seat 14 is the elongated member that arranges along the longitudinal direction and transversal surface is inverted U-shaped, permanent seat 14 rear and front end extends rear axle housing body front and back sides separately, permanent seat 14 back side top is welded with a damper down journal seat 15, described tubular damper 6 lower end is hinged on damper down journal seat 15, on the damper upper journal seat 16 on upper end thereof tailstock top after being welded on.
Like this, main body of vehicle frame is positioned at chassis position, its rear portion extends back the rear tailstock and the structure such as vehicle frame afterbody cross bar that arrange not only for installation car shell cover panel after one's death, the installation of the components such as damping spring, tubular damper and trammel beam can also be facilitated to connect, also make vehicle frame integral structure more simply compact.Wherein, the spring mounting seat of truncated cone-shaped that rear axle housing body upper surface is arranged facilitates the installation of damping spring to fix, and damping spring upper end is arranged in the spring fitting cylinder on vehicle frame afterbody cross bar, very efficient and convenient and reliably fixing.The permanent seat that rear axle housing body bottom is arranged, not only facilitates the installation of tubular damper, but also the convenient installation for towing arm connects, and towing arm rear end can be made to form two installation point of connection, improves installation reliability.
Wherein, described towing arm 5 entirety is in the vertical long block shape arranged, towing arm 5 front end forward upward tilts and on the towing arm journal stirrup 17 that lower surface is arranged downwards after being hingedly mounted on main body of vehicle frame by a horizontal hinge axis hole, towing arm 5 rear end and upper surface are respectively provided with a horizontal hinge axis hole near back-end location, and being hingedly mounted on position, described permanent seat 14 rear and front end, three horizontal hinge axis holes are triangularly arranged.
Like this, one, towing arm front end attachment point, two, rear end attachment point, three points are triangularly arranged, and can improve the stable connection degree of towing arm and rear axle housing body, and towing arm front end is inclined upwardly setting, can better by the propulsive effort transmission of back axle to vehicle body, ensure drive reliable and stable.
Wherein, described towing arm 5 upper surface is plane, and lower surface is protruding arcwall face, and the side seamed edge of towing arm 5 upper and lower surface has the flange 18 of outwardly convex.
Like this, simple structure can be leaned on to improve towing arm self-strength; Ensure the transmission of power.
Wherein, described towing arm 5 comprises the overall towing arm body for foundry goods, and towing arm body surface has plating rust proof layer.Like this, have and be beneficial to manufacture, good integral strength, the advantages such as long service life.
Wherein, described towing arm body is positioned at three horizontal hinge axis hole positions and is provided with three yielding rubber circles 19, the metal cylinder 20 for installing hinge is coaxially arranged with in the middle part of yielding rubber circle 19, the uniform through hole 21 being provided with broad ways in described yielding rubber circle surface, in the middle part of through hole 21, both sides extend internally to be connected to form and cut off perpendicular to the diametric damping of yielding rubber circle 19.
Like this, yielding rubber circle can improve the damping effect in the transferring power process of towing arm, not only can slow down the impact load that towing arm self bears, and improves autoprotection effect, and strengthens vehicle body damping effect, improves vehicle riding comfort.The metal cylinder simultaneously arranged; the convenient impulsive force passed over by hinge is delivered evenly to rubber ring; improve rubber ring protected effect; in addition; the structure of partition is set in the middle part of the through hole in yielding rubber circle; radial impact power can be converted into along vertical diameter to power, and then decompose sponge, drastically increase damping effect.
Wherein, the upper surface that described rear axle housing body 1 is positioned at actuating unit one side position also has free bearing under the trammel beam upwards arranged, vehicle frame afterbody cross bar 11 above described actuating unit opposite side position has free bearing on the trammel beam that arranges downwards, hingedly between free bearing on free bearing and trammel beam under trammel beam is provided with trammel beam 22.
Like this, facilitate the installation of trammel beam to fix, trammel beam is connected between vehicle frame and rear axle housing body, transmits the side force of left and right directions, avoids vehicle body double swerve on back axle in driving process, makes it keep balance.Trammel beam vertically arranges and can improve best counterbalance effect.During concrete enforcement, the material that trammel beam not easily adopts rigidity too high, easily adopts and has certain elastomeric material, to ensure that the working effect of shock absorber is hit in anti-side better.
Claims (8)
1. a rear-guard formula electronlmobil anticollision safety-type rear axle structure, comprises the rear axle housing body of the tubular of horizontally set, and end, rear axle housing body two ends is respectively arranged with brake wheel, for installing wheel outside brake wheel, actuating unit is provided with in the middle part of rear axle housing body, actuating unit comprises the diff be fixedly installed in the middle part of rear axle housing body, also comprise the electrical motor be fixed on diff, motor output shaft is connected with diff, and differential output shaft is connected with wheel by the transmission shaft being positioned at rear axle housing body inside, also comprise front end to be connected with the main body of vehicle frame being positioned at chassis position and the towing arm that is connected with rear axle housing body of rear end, it is characterized in that, be also provided with anti-side between described rear axle housing body and vehicle frame and hit shock absorber, shock absorber is hit in described anti-side, comprise a bottom plate be vertically fixed on rear axle housing body, also comprise two upper mounted plates be fixed on vehicle frame, two upper mounted plates are positioned at bottom plate both sides, and upper mounted plate relative with the outer end of bottom plate extend to form one staggered after the part relative in level, the side relative with bottom plate with two upper mounted plate outer ends, both sides, described bottom plate outer end is respectively provided with the relative spring fitting groove of a level, anti-side is hit shock absorber and is also comprised two recoil springs being positioned at bottom plate both sides, recoil spring is coil spring and two ends are arranged in the spring fitting groove of upper mounted plate and bottom plate in compressive state respectively, also comprise damping mechanism, described damping mechanism, comprise the tubular damper on the rear axle housing body being arranged at actuating unit two ends respectively and damping spring, tubular damper is all connected with rear axle housing body with damping spring lower end, and upper end is connected with vehicle frame, described damping spring is coil spring and is vertically arranged on the rear axle housing body at actuating unit two ends, described tubular damper outside damping spring and upper end be inclined and mounted on rearwardly and upwardly on vehicle frame.
2. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 1, it is characterized in that, described two upper mounted plate upper ends are upwards fixed on a vehicle frame afterbody cross bar, vehicle frame afterbody cross bar just to be arranged at above rear axle housing body and and main body of vehicle frame be fixed with one, described two upper mounted plate upper ends deviate from mutually between the side in direction and vehicle frame afterbody cross bar and are provided with leg-of-mutton reinforced rib, are provided with leg-of-mutton reinforced rib between described both sides, bottom plate lower end and rear axle housing body.
3. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 1, it is characterized in that, main body of vehicle frame rear portion end positions has one separately and to extend rearwardly and upwardly and for the rear tailstock of installation car shell cover panel after one's death, there is in the middle part of rear tailstock a level be connected and be positioned at the vehicle frame afterbody cross bar directly over rear axle housing body, the rear axle housing body upper surface at described actuating unit two ends is provided with a spring mounting seat, spring mounting seat comprises a round platform and is positioned at the radius stay in the middle part of round platform, described vehicle frame afterbody cross bar is just provided with a spring fitting cylinder to spring mounting seat, described damping spring lower end is socketed and is fixed on the round platform of spring mounting seat, upper end is arranged in spring fitting cylinder, outside described damping spring, the rear axle housing body lower surface of adjacent position has the mounting groove of a fovea superior, be embedded in mounting groove and be welded with a permanent seat, permanent seat is the elongated member that arranges along the longitudinal direction and transversal surface is inverted U-shaped, permanent seat rear and front end extends rear axle housing body front and back sides separately, permanent seat back side top is welded with a damper down journal seat, described tubular damper lower end is hinged on damper down journal seat, on the damper upper journal seat on upper end thereof tailstock top after being welded on.
4. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 3, it is characterized in that, described towing arm entirety is in the vertical long block shape arranged, towing arm front end forward upward tilts and on the towing arm journal stirrup that lower surface is arranged downwards after being hingedly mounted on main body of vehicle frame by a horizontal hinge axis hole, towing arm rear end and upper surface are respectively provided with a horizontal hinge axis hole near back-end location, and being hingedly mounted on position, described permanent seat rear and front end, three horizontal hinge axis holes are triangularly arranged.
5. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 3, it is characterized in that, described towing arm upper surface is plane, and lower surface is protruding arcwall face, and the side seamed edge of towing arm upper and lower surface has the flange of outwardly convex.
6. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 3, is characterized in that, described towing arm comprises the overall towing arm body for foundry goods, and towing arm body surface has plating rust proof layer.
7. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 3, it is characterized in that, described towing arm body is positioned at three horizontal hinge axis hole positions and is provided with three yielding rubber circles, the metal cylinder for installing hinge is coaxially arranged with in the middle part of yielding rubber circle, the uniform through hole being provided with broad ways in described yielding rubber circle surface, in the middle part of through hole, the both sides damping be connected to form perpendicular to yielding rubber loop diameter direction that extends internally cuts off.
8. rear-guard formula electronlmobil anticollision safety-type rear axle structure as claimed in claim 3, it is characterized in that, the upper surface that described rear axle housing body is positioned at actuating unit one side position also has free bearing under the trammel beam upwards arranged, vehicle frame afterbody cross bar above described actuating unit opposite side position has free bearing on the trammel beam that arranges downwards, hingedly between free bearing on free bearing and trammel beam under trammel beam is provided with trammel beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410662068.6A CN104325855B (en) | 2014-11-19 | 2014-11-19 | Anti-collision safety rear axle structure for rear-drive electric automobile |
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| CN201410662068.6A CN104325855B (en) | 2014-11-19 | 2014-11-19 | Anti-collision safety rear axle structure for rear-drive electric automobile |
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| CN104325855B CN104325855B (en) | 2017-05-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444043A (en) * | 2017-08-08 | 2017-12-08 | 河南森地新能源汽车股份有限公司 | Electric automobile back suspension device |
| 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 |
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| 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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| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444043A (en) * | 2017-08-08 | 2017-12-08 | 河南森地新能源汽车股份有限公司 | Electric automobile back suspension device |
| 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 |
Also Published As
| Publication number | Publication date |
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| CN104325855B (en) | 2017-05-17 |
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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. |