Title:
ELECTRIC DRIVE GEARBOX OF CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/077991
Kind Code:
A1
Abstract:
The present invention relates to an electric drive gearbox of a construction machine. The electric drive gearbox is an electric drive fixed-spindle structure capable of realizing two gears or three gears, can meet gear requirements of construction machines such as road graders and rough terrain cranes, and has a gear velocity ratio adjustable within a range of 0.8-6.5. At low gear, the transmission route is longest, and the sizes of gears are uniform, so as to achieve a large velocity ratio and bear a large torque. High gear corresponds to the shortest transmission route, and can achieve rapid switching to a small velocity ratio for torque transmission and minimum power loss. Conversion between a multi-gear structure and a less-gear structure can be realized simply and economically by adding or removing an intermediate shaft as well as a clutch and a gear on the intermediate shaft, and the application and maintenance costs of using the multi-gear structure as a less-gear structure is reduced. The gearbox provided by the present invention uses a single-clutch structure, has a simple structure, is easy to machine and manufacture, and can avoid system deformation caused by a long spindle length in a case of a twin-clutch structure, thereby improving the gear transmission precision, reducing noise of a transmission, and improving stability.
Inventors:
YAN WEIPENG (CN)
ZHU HAOYUE (CN)
SHI GUOGUO (CN)
WANG WEILI (CN)
HU DANDAN (CN)
ZHU HAOYUE (CN)
SHI GUOGUO (CN)
WANG WEILI (CN)
HU DANDAN (CN)
Application Number:
PCT/CN2023/100335
Publication Date:
April 18, 2024
Filing Date:
June 15, 2023
Export Citation:
Assignee:
JIANGSU ADVANCED CONSTRUCTION MACHINERY INNOVATION CENTER LTD (CN)
International Classes:
F16H57/02; F16H3/08; F16H3/093; F16H57/023; F16H57/028
Domestic Patent References:
| WO2021231177A1 | 2021-11-18 |
Foreign References:
| CN115899221A | 2023-04-04 | |||
| CN215334219U | 2021-12-28 | |||
| CN111734793A | 2020-10-02 | |||
| CN213479071U | 2021-06-18 | |||
| CN102392885A | 2012-03-28 | |||
| JPH0198355U | 1989-06-30 |
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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