CN204296395U - A kind of rear axle of electric automobile damping mechanism - Google Patents
A kind of rear axle of electric automobile damping mechanism Download PDFInfo
- Publication number
- CN204296395U CN204296395U CN201420691377.1U CN201420691377U CN204296395U CN 204296395 U CN204296395 U CN 204296395U CN 201420691377 U CN201420691377 U CN 201420691377U CN 204296395 U CN204296395 U CN 204296395U
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- Prior art keywords
- rear axle
- housing body
- damping
- spring
- axle housing
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Abstract
The utility model discloses a kind of rear axle of electric automobile 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, upper end is connected with vehicle frame, it is characterized in that, 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.The utility model conveniently can adjust damping performance and damping capacity is applied to be applicable to electronlmobil, has good damping effect, quick and easy for installation, the advantages such as whole structural stability is good.
Description
Technical field
The utility model relates to a kind of rear-guard formula battery-driven car, particularly relates to a kind of rear axle of electric automobile damping mechanism.
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: 1, 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.2, 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.3, car crust rear portion is the integral type covering component structure imitating general-utility car back cover, the installation of so inconvenient electrical motor and rear axle structure and maintenance.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of convenient adjustment damping performance and damping capacity to be applicable to electronlmobil application, good damping effect, quick and easy for installation, the rear axle of electric automobile damping mechanism that whole structural stability is good.
In order to solve the problems of the technologies described above, the utility model have employed following technical scheme:
A kind of rear axle of electric automobile 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, upper end is connected with vehicle frame, it is characterized in that, 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.
In the utility model, 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.Damping spring is vertically installed simultaneously, 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.
In sum, the utility model conveniently can adjust damping performance and damping capacity is applied to be applicable to electronlmobil, has good damping effect, quick and easy for installation, the advantages such as whole structural stability is good.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of rear-guard formula rear axle of electric automobile structure from vehicle rearview direction that have employed the utility model structure.
Fig. 2 is the schematic diagram after cancelling access door in Fig. 1.
Fig. 3 is the structural representation in Fig. 2 after automobile back cover.
Fig. 4 is Fig. 3 birds-eye view, does not wherein show the structure of towing arm and vehicle frame.
Fig. 5 is the lateral plan of independent towing arm part local structure in Fig. 3.
Fig. 6 is the structural representation of independent towing arm in Fig. 5.
Detailed description of the invention
The utility model is described in further detail for the rear-guard formula rear axle of electric automobile structure that have employed the utility model structure below in conjunction with a kind of and accompanying drawing thereof.
During concrete enforcement: as shown in figs 1 to 6, a kind of rear-guard formula rear axle of electric automobile 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 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 10 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.
Wherein, the automobile back cover 10 at rear axle housing body rear is just provided with breach in the middle part of back axle, described actuating unit and rear axle housing body fall in described breach for the structure of installing the parts such as towing arm, damping mechanism and trammel beam in the projection of fore-and-aft direction, the corresponding access door 23 being provided with coupling on breach.
Like this, be easy to open access door, time to facilitate production, to the installation of other components on actuating unit and rear axle housing body, also facilitate the maintenance in follow-up working service process to use simultaneously.
Wherein, described access door 23 bottom surface two side position has the connecting panel 24 that level extends to form inwards, below described automobile back cover breach, the inside face of end positions has the adapter plate 25 toward horizontal-extending in the middle part of breach, and described connecting panel 24 is shelved and is supported on adapter plate 25 and is fixedly connected with by bolt; Edge beyond described access door 23 bottom surface has step-like mounting edge along 26, mounting edge is closely set on automobile back cover gap edge inside face along 26, the both sides of automobile back cover breach upper end inside face are also respectively provided with a clamping bar 27, form clamping space and connected and fixed within it on the mounting edge of access door edge between clamping bar 27 and automobile back cover.
Like this, realize fixing by the adapter plate of end positions below automobile back cover breach and the connecting panel of access door lower end and support, ensureing support reliable and stable and very there is disguise, do not affect vehicle body outward appearance.The mounting edge edge of access door upper edge simultaneously, coordinate with the interface arrangment of both sides, automobile back cover breach upper end and realize the rear clamping of laminating, ensure that the degree of reliability of connection, also do not affect entire vehicle outward appearance simultaneously, during dismounting, only need disassemble the bolt at two ends, below.Therefore entirety has stabilized structure reliably, fast easy to loading and unloading, and also there is the advantage of contour of the vehicle good integrity attractive in appearance.
Claims (2)
1. a rear axle of electric automobile 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, upper end is connected with vehicle frame, it is characterized in that, 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 axle of electric automobile damping mechanism as claimed in claim 1, it is characterized in that, the main body of vehicle frame rear portion end positions being positioned at chassis position 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 being positioned at 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420691377.1U CN204296395U (en) | 2014-11-18 | 2014-11-18 | A kind of rear axle of electric automobile damping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420691377.1U CN204296395U (en) | 2014-11-18 | 2014-11-18 | A kind of rear axle of electric automobile damping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204296395U true CN204296395U (en) | 2015-04-29 |
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ID=53101968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420691377.1U Expired - Fee Related CN204296395U (en) | 2014-11-18 | 2014-11-18 | A kind of rear axle of electric automobile damping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204296395U (en) |
Cited By (4)
| 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 |
| CN108891219A (en) * | 2018-07-13 | 2018-11-27 | 太原科技大学 | A kind of imitative kangaroo leg suspension of MR |
| CN109080733A (en) * | 2018-09-29 | 2018-12-25 | 北京云迹科技有限公司 | Robot chassis and robot |
| 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 |
-
2014
- 2014-11-18 CN CN201420691377.1U patent/CN204296395U/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| CN108891219A (en) * | 2018-07-13 | 2018-11-27 | 太原科技大学 | A kind of imitative kangaroo leg suspension of MR |
| CN108891219B (en) * | 2018-07-13 | 2021-08-20 | 太原科技大学 | MR imitates kangaroo leg suspension |
| CN109080733A (en) * | 2018-09-29 | 2018-12-25 | 北京云迹科技有限公司 | Robot chassis and robot |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20151118 |