CN203637455U - Low trapdoor type driving axle - Google Patents
Low trapdoor type driving axle Download PDFInfo
- Publication number
- CN203637455U CN203637455U CN201320878383.3U CN201320878383U CN203637455U CN 203637455 U CN203637455 U CN 203637455U CN 201320878383 U CN201320878383 U CN 201320878383U CN 203637455 U CN203637455 U CN 203637455U
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- axle
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- wheel
- low floor
- bevel gear
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Abstract
The utility model provides a low-weight low trapdoor type driving axle for a passenger car. The low trapdoor type driving axle comprises a main reducer assembly, wheel rim reducer assemblies, wheel rim brake assemblies, C-type beams and an axle housing assembly. The main reducer assembly is arranged inside the axle housing assembly. The two ends of the axle housing assembly are connected with the wheel rim reducer assemblies respectively. The wheel rim brake assemblies and the C-type beams are connected to the wheel rim reducer assemblies. According to the low-weight low trapdoor type driving axle for the passenger car, by the adoption of the brand new design means that transmission analysis is combined with finite element analysis, the driving axle is innovated and improved on the multiple aspects of a main reducer housing, an axle housing, a wheel rim reducer casing, a spindle nose, a hub and the like, the center of gravity of the whole axle is effectively lowered, the using requirement of the low-weight low trapdoor type driving axle for the passenger car is met, passengers can conveniently, comfortably and safely take, get on and get off the passenger car, meanwhile, the travelling stability of the passenger car is ensured, the supporting rigidity and strength of the driving axle are improved, and the aims of the light-weight design and the longer service life are achieved as well.
Description
Technical field
The utility model relates to automotive axle technical field, is specifically related to a kind of passenger vehicle low floor portal drive axle.
Background technology
Along with improvement and the people of highway in China condition more and more select public transport means, passenger vehicle irreversibly develops towards little speed ratio, low noise, lightweight, high efficiency with drive axle design, comfortable, safety, environmental protection, efficient and energy-conservation, become the main flow trend of passenger vehicle development gradually.Drive axle assembly is positioned at the end of automotive transmission, its basic function is to reduce the rotating speed transmitting from main driving axle, increase by transmission shaft and transmit the torque coming, by torque distribution to left and right driving wheel, and make it have differential function, also to bear vertical force, longitudinal force and the transverse force and the moment that act on road surface and vehicle frame simultaneously.Because passenger vehicle especially city bus is in operation, to have website intensive, passenger getting on/off is feature frequently, therefore floor level is directly connected to passenger and takes in the car of passenger vehicle, the comfort feature of getting on or off the bus, traveling comfort and safety, especially for the elderly, disabled person, with mother of perambulator, band luggage passenger waits special population, require the interior floor of car of passenger vehicle more low better, and existing passenger vehicle does not have drop by drive axle major part, the center of gravity of whole bridge is higher, cause the interior floor of car higher, cannot meet special population to taking, HOP ON–HOP OFF, the requirement of traveling comfort and safety, also affected the stationarity of passenger vehicle driving simultaneously, the final drive casing of drive axle for simultaneously existing passenger vehicle, poor shell, the design of the key components and parts such as axle housing and wheel hub is heavy, structure is too complicated, also give and arrange that increase difficulty and cost improve.Therefore how maximum constraints ground reduces passenger vehicle has great importance for the development of public transport means with the height of portal drive axle, reduces passenger vehicle and need to start with from the structural development of the structure of its included all parts and whole axle housing with the height of portal drive axle.
Utility model content
For overcoming the deficiency of existing passenger vehicle drive axle, the utility model innovation Drive axle housing and included all parts structure, layout etc. are improved, a kind of weight-saving passenger vehicle low floor portal drive axle assembly is provided, by the brand-new design means that adopt Analysis of Transmission to combine with finite element analysis, innovate improvement from many aspects such as final drive casing, axle housing, hub reduction casing, spindle nose, wheel hubs, effectively reduce the center of gravity of whole bridge, met the user demand of lightweight for passenger vehicle, low floor portal drive axle.
It is as follows that the utility model solves the problems of the technologies described above taked technical scheme:
A kind of low floor portal drive axle, comprise main gearbox assembly 1, wheel reduction gear assembly 2, rim brake assembly 3, C type beam 4 and axle case assy 5, described main gearbox assembly 1 is arranged in described axle case assy 5, the two ends of described axle case assy 5 are connected with respectively wheel reduction gear assembly 2, are connected with rim brake assembly 3 and C type beam 4 on described wheel reduction gear assembly 2.
Further according to low floor portal drive axle described in the utility model, wherein said axle case assy 5 comprises bridge tube 31, axle housing tapering 32 and the track bar bracket 33 that one connects, described bridge tube 31 adopts transition great circle arc one to be connected with axle housing tapering 32, described track bar bracket 33 is integrally formed at the sidewall of bridge tube 31, described axle housing tapering 32 holder housings as described main gearbox assembly 1.
Further according to low floor portal drive axle described in the utility model, wherein there are some reinforced ribs 30 in the arranged outside in described axle housing tapering 32, described track bar bracket 33 adopts V-type track bar bracket structure, and being designed with triangle lightening grooves thereon, the inside of described C type beam 4 is hollow structure 29.
Further according to low floor portal drive axle described in the utility model, wherein said main gearbox assembly 1 comprises flange assembly 13, drive bevel gear 7, by dynamic bevel gear 14 and differential assembly 8, described drive bevel gear 7 is directly supported in described axle housing tapering 32 by tapered roller bearing, the top while in described axle housing tapering 32 is as the bearing seat of described tapered roller bearing, described flange assembly 13 is connected in the top of drive bevel gear 7, described drive bevel gear 7 is with intermeshing by dynamic bevel gear 14, describedly be fixedly connected on described differential assembly 8 by dynamic bevel gear 14.
Further according to low floor portal drive axle described in the utility model, wherein said differential assembly 8 comprises left differential gear box 15, right differential gear box 9, planetary wheel 12, axle side gear 10 and center cross 11, describedly be bolted to connection in described right differential gear box 9 by dynamic bevel gear 14, described left differential gear box 15 with right differential gear box 9 in conjunction with the installation cavity that forms described planetary wheel 12, axle side gear 10 and center crosss 11.
Further according to low floor portal drive axle described in the utility model, on the wall of wherein said right differential gear box 9, offer four and complete be positioned at conplane cross shaft hole, each axle head of described center cross 11 stretches in corresponding cross shaft hole through after a described planetary wheel 12, and described axle side gear 10 quantity are two and outside the both sides of described center cross 11, are meshed with described planetary wheel 12 respectively.
Further, according to low floor portal drive axle described in the utility model, wherein said center cross 11 adopts split-type structural, by a major axis and two conllinear and form with the vertical minor axis that is connected, is positioned at major axis both sides of major axis.
Further, according to low floor portal drive axle described in the utility model, wherein said flange assembly 13 is anchored on the top of drive bevel gear 7 by flange lock jack panel 6, and described flange lock jack panel 6 employings are executed must firm jam nut.
Further according to low floor portal drive axle described in the utility model, wherein said wheel reduction gear assembly 2 comprises input semiaxis 25, deceleration box, input cylindrical wheel 26, idle pulley 23 and output cylindrical wheel 24, described deceleration box is bolted in described axle housing tapering 32, described input semiaxis 25, input cylindrical wheel 26, idle pulley 23 and output cylindrical wheel 24 are arranged in described deceleration box, described input semiaxis 25 is connected in the output shaft of main gearbox assembly, described input cylindrical wheel 26 is fixedly connected on described input semiaxis 25, described output cylindrical wheel 24 is engaged on described input cylindrical wheel 26.
Further according to low floor portal drive axle described in the utility model, wherein said rim brake assembly 3 comprises output axle shaft 16, spindle nose 19, brake disc 20, brake clamp 21, wheel hub 18, compressed air brake cylinder 22 and unit bearing 17, described output axle shaft 16 is fixedly connected on described output cylindrical wheel 24, described spindle nose 19 comprises supporting part 34 and the back-plate 35 that one connects, described supporting part 34 is sheathed on the periphery of output axle shaft 16, described back-plate 35 is connected in described brake disc 20 and brake clamp 21, described compressed air brake cylinder 22 is connected in described brake clamp 21, described brake clamp 21 is assembled on described back-plate 35, described brake disc 20 is connected in described wheel hub 18, described unit bearing 17 is arranged between described supporting part 34 and wheel hub 18.
At least can reach following technique effect by the technical solution of the utility model:
1), the utility model provides a kind of passenger vehicle low floor portal drive axle, reduced floor level in passenger vehicle, guaranteed comfort feature, traveling comfort and safety that passenger takes, gets on or off the bus, also guaranteed the stability of passenger vehicle driving simultaneously.
2, the utility model is realized primary speed-down by active and passive finishing bevel gear cuter, and by hub reduction box assembly, input cylindrical wheel, output cylindrical wheel realize double reduction, thereby obtain larger transmission speed ratio, and obtain larger output torque, thereby can make this passenger vehicle low floor portal drive axle can mate the more driving engine of high-power.
3, the flange assembly flange jam nut in the utility model main gearbox assembly has adopted that execute must firm jam nut, thereby has replaced physical disturbance locking in the past, is convenient to dismounting.
4, the utility model, by the brand-new design means that adopt Analysis of Transmission to combine with finite element analysis, is optimized design to axle housing, differential gear box, is conducive to low center of gravity and arranges, has strengthened the rigidity of support of finishing bevel gear cuter simultaneously, has realized light-weight design.
5, the utility model, by adopting finite element analysis means, has carried out light-weight design to hub reduction casing, wheel hub, C type beam, spindle nose, has realized weight lighter, the target of longer service life.
Accompanying drawing explanation
Accompanying drawing 1 is the integral structure schematic diagram of low floor portal drive axle described in the utility model.
Accompanying drawing 4 is the structural representation of drive axle intermediate axle shell assembly described in the utility model.
Accompanying drawing 6 is the structural representation of C type beam in drive axle described in the utility model.
In figure, the implication of each Reference numeral is as follows:
1, main gearbox assembly; 2, wheel reduction gear assembly; 3, rim brake assembly; 4, C type beam; 5, axle case assy; 6, flange lock jack panel; 7, drive bevel gear; 8, differential assembly; 9, right differential gear box; 10, axle side gear; 11, center cross; 12, planetary wheel; 13, flange assembly; 14, by dynamic bevel gear; 15, left differential gear box; 16, output axle shaft; 17, unit bearing; 18, wheel hub; 19, spindle nose; 20, brake disc; 21, brake clamp; 22, compressed air brake cylinder; 23, idle pulley; 24, output cylindrical wheel; 25, input semiaxis; 26, input cylindrical wheel; 27, left deceleration box; 28, right deceleration box; 29, hollow structure; 30, reinforced rib; 31, bridge tube; 32, axle housing tapering; 33, track bar bracket; 34, supporting part; 35, back-plate.
The specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail, so that those skilled in the art can more clearly understand the utility model, but does not therefore limit protection domain of the present utility model.
As shown in Figure 1, passenger vehicle described in the utility model comprises main gearbox assembly 1, wheel reduction gear assembly 2, rim brake assembly 3, C type beam 4 and axle case assy 5 by low floor portal drive axle entirety; Described main gearbox assembly 1 is arranged in axle case assy 5, and the two ends of axle case assy 5 are connected with respectively wheel reduction gear assembly 2, is connected with rim brake assembly 3 and C type beam 4 on described wheel reduction gear assembly 2.
The utility model is by optimizing the structure of each several part so that a kind of low floor portal drive axle to be provided.First the structure of axle case assy is optimized to design, as shown in Figure 4, axle case assy 5 comprises bridge tube 31, axle housing tapering 32 and track bar bracket 33, described bridge tube 31, track bar bracket 33 and axle housing tapering 32 are structure as a whole, the effect of described bridge tube 31 is similar to existing Drive axle housing, described bridge tube 31 adopts transition great circle arc one to be connected with axle housing tapering 32, strengthen bending fillet size, optimizing has distributed axle housing vertical, horizontal bending resistant section coefficient, torsional property and the load-carrying capacity of axle housing get a promotion, further there are some reinforced ribs 30 in the arranged outside in described axle housing tapering, guarantee that axle housing has high rigidity and intensity in loss of weight, described track bar bracket 33 is integrally formed at the sidewall of bridge tube 31, preferably adopt V-type track bar bracket structure, and adopt light-weight design, the lightening grooves of design triangle shape structure on the track bar bracket 33 of V-type, thereby reduce to greatest extent axle housing weight.The holder housing as main gearbox assembly 1 that innovate in described axle housing tapering 32, and simultaneously as the housing of main reduction gear and the installation shaft bearing of drive bevel gear, as shown in Figure 2, main gearbox assembly 1 is directly installed in the axle housing tapering 32 in axle case assy, concrete main gearbox assembly 1 comprises flange assembly 13, drive bevel gear 7, by dynamic bevel gear 14 and differential assembly 8, described differential assembly 8 comprises again left differential gear box 15, right differential gear box 9, planetary wheel 12, axle side gear 10 and center cross 11; Drive bevel gear 7 is directly supported on by a pair of tapered roller bearing in the axle housing tapering 32 of axle case assy, the top in axle housing tapering 32 is simultaneously as the bearing seat of tapered roller bearing, the setting that the more traditional drive axle of this innovative design has saved bearing seat and final drive casing, thereby by conventional drive bridge bottom bracket, final drive casing, axle housing, the track bar bracket four major parts body structure that permeates, be convenient to inblock cast, thereby the arrangement space having increased, is more conducive to reduce the height of drive axle.The top of drive bevel gear 7 is provided with flange assembly 13, and described flange assembly 13 is anchored on the top of drive bevel gear 7 by flange lock jack panel 6, and the described flange lock jack panel of innovation 6 adopts that execute must firm jam nut, has improved constant intensity, drive bevel gear 7, together with intermeshing by dynamic bevel gear 14, is bolted fixing by dynamic bevel gear 14 and the right differential gear box 9 in differential assembly 8, described left differential gear box 15 is incorporated into the peristome of right differential gear box 9, described planetary wheel 12, axle side gear 10 and center cross 11 are installed in left differential gear box 15 and the cavity of right differential gear box 9 in conjunction with formation, on the wall of described right differential gear box 9, offer four and complete be positioned at conplane cross shaft hole, each axle head of described center cross 11 stretches in corresponding cross shaft hole through after a planetary wheel 12, described center cross 11 adopts split-type structural, preferably by a major axis and two conllinear and be connected with major axis is vertical, be positioned at the minor axis composition of major axis both sides, thereby differential assembly described in the utility model comprises that four respectively through the planetary wheel 12 of four shaft parts of center cross and two axle side gears 10 that are positioned at center cross both sides and engage with planetary wheel 12.Further described drive bevel gear axis and passenger vehicle working direction have certain angle.
Described wheel reduction gear assembly 2 is connected in axle case assy 5 and main gearbox assembly 1, specifically as shown in Figure 3, described wheel reduction gear assembly 2 comprises input semiaxis 25, left deceleration box 27, right deceleration box 28, input cylindrical wheel 26, idle pulley 23 and output cylindrical wheel 24, described right deceleration box 28 is bolted the axle housing tapering 32 in axle case assy 1, described input semiaxis 25, input cylindrical wheel 26, idle pulley 23 and output cylindrical wheel 24 are arranged in the deceleration box that left deceleration box 27 and right deceleration box 28 form, described input semiaxis 25 is connected in the output shaft in main gearbox assembly 2, described input cylindrical wheel 26 is fixedly connected on input semiaxis 25, described output cylindrical wheel 24 is engaged on described input cylindrical wheel 26.
Described rim brake assembly 3 is connected on described wheel reduction gear assembly 2, specifically as shown in Figure 3, described rim brake assembly 3 comprises output axle shaft 16, spindle nose 19, brake disc 20, brake clamp 21, wheel hub 18, compressed air brake cylinder 22 and unit bearing 17, described output axle shaft 16 is fixedly connected on the output cylindrical wheel 24 in wheel reduction gear assembly 2, described spindle nose 19 is arranged at output axle shaft 16 peripheries, the structure to spindle nose of the utility model innovation is improved, described spindle nose 19 as shown in Figure 5, comprise supporting part 34 and back-plate 35 that one connects, to guarantee the particularity of wheel limit assembling, described supporting part 34 is sheathed on output axle shaft 16 peripheries, play with the first sample of plain shaft the effect that carrying output axle shaft 16 turns round, described back-plate 35 is connected in brake disc 20 and brake clamp 21, described compressed air brake cylinder 22 is connected in brake clamp 21, described brake clamp 21 is assembled on back-plate 35, described brake disc 20 is connected in wheel hub 18, described unit bearing 17 is arranged between spindle nose 19 supporting parts and wheel hub 18.
Described C type beam 4 is connected on wheel reduction gear assembly 2, concrete C type beam 4 is bolted to connection the deceleration box sidepiece in wheel reduction gear assembly 2, the utility model is the weight that further alleviates drive axle, and hollow structure 29 is as shown in Figure 6 set on described C type beam 4.
Low floor portal drive axle assembly for passenger vehicle described in the utility model, improve by main gearbox assembly, axle case assy, wheel reduction gear assembly, rim brake assembly and C type beam each several part having been carried out to innovation, especially described axle case assy is by conventional drive bridge bottom bracket, final drive casing, axle housing and the track bar bracket four major parts body structure that permeates, be convenient to realize the low center of gravity design of drive axle, arrange that in outside, axle housing tapering reinforced rib is to guarantee its intensity and rigidity simultaneously; Described differential assembly is lightweight structure, and cross shaft hole is all distributed on right differential gear box, and center cross adopts split-type structural; Described spindle nose combines together traditional spindle nose and back-plate to carry out solid forging; Described C type beam adopts lightweight structure, etc. these innovations improve the realization that is conducive to lightweight low-floor bus portal drive axle.The wheelspan connecting by drive axle described in the utility model is between 1800～1860mm.
Below be only that preferred implementation of the present utility model is described; the technical solution of the utility model is not limited to this; the any known distortion that those skilled in the art do on the basis of major technique design of the present utility model all belongs to the claimed technology category of the utility model, and the concrete protection domain of the utility model is as the criterion with the record of claims.
Claims (10)
1. a low floor portal drive axle, it is characterized in that, comprise main gearbox assembly (1), wheel reduction gear assembly (2), rim brake assembly (3), C type beam (4) and axle case assy (5), described main gearbox assembly (1) is arranged in described axle case assy (5), the two ends of described axle case assy (5) are connected with respectively wheel reduction gear assembly (2), are connected with rim brake assembly (3) and C type beam (4) on described wheel reduction gear assembly (2).
2. low floor portal drive axle according to claim 1, it is characterized in that, wherein said axle case assy (5) comprises bridge tube (31), axle housing tapering (32) and the track bar bracket (33) that one connects, described bridge tube (31) adopts transition great circle arc one to be connected with axle housing tapering (32), described track bar bracket (33) is integrally formed at the sidewall of bridge tube (31), and described axle housing tapering (32) is as the holder housing of described main gearbox assembly (1).
3. low floor portal drive axle according to claim 2, it is characterized in that, wherein there are some reinforced ribs (30) in the arranged outside in described axle housing tapering (32), described track bar bracket (33) adopts V-type track bar bracket structure, and being designed with triangle lightening grooves thereon, the inside of described C type beam (4) is hollow structure (29).
4. low floor portal drive axle according to claim 2, it is characterized in that, described main gearbox assembly (1) comprises flange assembly (13), drive bevel gear (7), by dynamic bevel gear (14) and differential assembly (8), described drive bevel gear (7) is directly supported in described axle housing tapering (32) by tapered roller bearing, the top while in described axle housing tapering (32) is as the bearing seat of described tapered roller bearing, described flange assembly (13) is connected in the top of drive bevel gear (7), described drive bevel gear (7) is with intermeshing by dynamic bevel gear (14), describedly be fixedly connected on described differential assembly (8) by dynamic bevel gear (14).
5. low floor portal drive axle according to claim 4, it is characterized in that, described differential assembly (8) comprises left differential gear box (15), right differential gear box (9), planetary wheel (12), axle side gear (10) and center cross (11), describedly be bolted to connection in described right differential gear box (9) by dynamic bevel gear (14), described left differential gear box (15) with right differential gear box (9) in conjunction with the installation cavity that forms described planetary wheel (12), axle side gear (10) and center cross (11).
6. low floor portal drive axle according to claim 5, it is characterized in that, on the wall of described right differential gear box (9), offer four and complete be positioned at conplane cross shaft hole, each axle head of described center cross (11) stretches in corresponding cross shaft hole through after a described planetary wheel (12), and described axle side gear (10) quantity is two and outside the both sides of described center cross (11), is meshed with described planetary wheel (12) respectively.
7. low floor portal drive axle according to claim 6, is characterized in that, described center cross (11) adopt split-type structural, by a major axis and two conllinear and form with the vertical minor axis that is connected, is positioned at major axis both sides of major axis.
8. low floor portal drive axle according to claim 4, is characterized in that, described flange assembly (13) is anchored on the top of drive bevel gear (7) by flange lock jack panel (6), and described flange lock jack panel (6) employing is executed must firm jam nut.
9. low floor portal drive axle according to claim 2, it is characterized in that, described wheel reduction gear assembly (2) comprises input semiaxis (25), deceleration box, input cylindrical wheel (26), idle pulley (23) and output cylindrical wheel (24), described deceleration box is bolted in described axle housing tapering (32), described input semiaxis (25), input cylindrical wheel (26), idle pulley (23) and output cylindrical wheel (24) are arranged in described deceleration box, described input semiaxis (25) is connected in the output shaft of main gearbox assembly, described input cylindrical wheel (26) is fixedly connected on described input semiaxis (25), described output cylindrical wheel (24) is engaged on described input cylindrical wheel (26).
10. low floor portal drive axle according to claim 9, it is characterized in that, described rim brake assembly (3) comprises output axle shaft (16), spindle nose (19), brake disc (20), brake clamp (21), wheel hub (18), compressed air brake cylinder (22) and unit bearing (17), described output axle shaft (16) is fixedly connected on described output cylindrical wheel (24), described spindle nose (19) comprises supporting part (34) and the back-plate (35) that one connects, described supporting part (34) is sheathed on the periphery of output axle shaft (16), described back-plate (35) is connected in described brake disc (20) and brake clamp (21), described compressed air brake cylinder (22) is connected in described brake clamp (21), described brake clamp (21) is assembled on described back-plate (35), described brake disc (20) is connected in described wheel hub (18), described unit bearing (17) is arranged between described supporting part (34) and described wheel hub (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878383.3U CN203637455U (en) | 2013-12-26 | 2013-12-26 | Low trapdoor type driving axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878383.3U CN203637455U (en) | 2013-12-26 | 2013-12-26 | Low trapdoor type driving axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203637455U true CN203637455U (en) | 2014-06-11 |
Family
ID=50868731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878383.3U Withdrawn - After Issue CN203637455U (en) | 2013-12-26 | 2013-12-26 | Low trapdoor type driving axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203637455U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742648A (en) * | 2013-12-26 | 2015-07-01 | 陕西汉德车桥有限公司 | Low floor door type drive axle |
| CN105216617A (en) * | 2015-10-30 | 2016-01-06 | 郑州精益达汽车零部件有限公司 | Low floor drive axle used for buses |
| CN106183632A (en) * | 2016-09-28 | 2016-12-07 | 通天汽车桥（天津）有限公司 | Independent suspension type front wheel driving rear axle assy |
-
2013
- 2013-12-26 CN CN201320878383.3U patent/CN203637455U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104742648A (en) * | 2013-12-26 | 2015-07-01 | 陕西汉德车桥有限公司 | Low floor door type drive axle |
| CN104742648B (en) * | 2013-12-26 | 2017-06-06 | 陕西汉德车桥有限公司 | A kind of low-floor portal drive axle |
| CN105216617A (en) * | 2015-10-30 | 2016-01-06 | 郑州精益达汽车零部件有限公司 | Low floor drive axle used for buses |
| CN106183632A (en) * | 2016-09-28 | 2016-12-07 | 通天汽车桥（天津）有限公司 | Independent suspension type front wheel driving rear axle assy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20170606 |