Title:
DRIVE AXLE LOCKING DEVICE, POWER DRIVE SYSTEM, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/121296
Kind Code:
A1
Abstract:
A drive axle locking device (100), power drive system (1000), and vehicle. The drive axle locking device (100) comprises: a planetary gear mechanism (10) comprising a sun gear (11), a planet gear (12), a planet carrier (13), and a ring gear (14); a first drive axle (20), a second drive axle (30), and a power engagement device (40), wherein the power engagement device (40) comprises a first engagement portion (41) and a second engagement portion (42), the first drive axle (20) is connected to one of the sun gear (11), the planet carrier (13), or the ring gear (14), the second drive axle (30) is connected to a different one thereof, the first drive axle (20) and the first engagement portion (41) rotate synchronously, and the second drive axle (30) and the second engagement portion (42) rotate synchronously; and an engagement portion drive device (50) comprising a drive pin (51) and a drive portion (52), wherein the drive portion (52) is configured to drive the drive pin (51) to drive the second engagement portion (42) to move along an axle direction toward the first engagement portion (41), such that the second engagement portion (42) is engaged with the first engagement portion (41). In this way, the drive axle locking device (100) of the present invention can lock two drive axles to improve the ability of a vehicle to handle rough terrain.
Inventors:
LING HEPING (CN)
ZHAI ZHEN (CN)
HUANG CHANGAN (CN)
LUO YONGMENG (CN)
ZHAI ZHEN (CN)
HUANG CHANGAN (CN)
LUO YONGMENG (CN)
Application Number:
PCT/CN2017/116612
Publication Date:
July 05, 2018
Filing Date:
December 15, 2017
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
F16H48/34; B60K17/02; B62D11/04
Foreign References:
| CN104565278A | 2015-04-29 | |||
| CN204755825U | 2015-11-11 | |||
| CN101519040A | 2009-09-02 | |||
| US4507984A | 1985-04-02 | |||
| CN105459781A | 2016-04-06 | |||
| CN101415577A | 2009-04-22 | |||
| CN201611226794A | 2016-12-27 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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