The invention provides a hydraulic pump control double-motor transmission system which comprises a hydraulic pump, an oil supplementing pump, a hydraulic pump speed regulating mechanism, a hydraulic pump electromagnetic valve, a hydraulic motor electromagnetic valve, a hydraulic flow regulating electromagnetic valve, a one-way valve, a throttling valve, a hydraulic motor speed regulating mechanism, a front hydraulic motor, a rear hydraulic motor, a gearbox and a rear axle. The oil supplementing pump is connected with the hydraulic pump, the hydraulic pump is connected with the hydraulic pump speed regulating mechanism, the hydraulic pump speed regulating mechanism is connected with the front hydraulic motor and the rear hydraulic motor, the front hydraulic motor is connected with the gearbox, and the rear hydraulic motor is connected with the rear axle. The transmission mode that the hydraulic pump is connected with the two variable displacement motors in parallel is adopted in the system, the rotating speed range of the double motors is adjusted under the combined action of the hydraulic pump speed adjusting mechanism, the front hydraulic motor speed adjusting mechanism and the rear hydraulic motor speed adjusting mechanism, and the characteristics of being large in stepless speed change range, wide in torque change range and the like are achieved. And the defects of narrow speed change and torque range of a hydraulic system when the existing engineering vehicle works are overcome.
一种液压泵控双马达传动系统,包括本发明提供一种液压泵控双马达传动系统,包括液压泵、补油泵、液压泵调速机构、液压泵电磁阀、液压马达电磁阀、液压调流电磁阀、单向阀、节流阀、液压马达调速机构、前液压马达、后液压马达、变速箱、后桥;所述补油泵与液压泵相连,所述液压泵与液压泵调速机构相连,所述液压马达调速机构与前液压马达、后液压马达相连,所述前液压马达与所述变速箱相连,所述后液压马达与所述后桥相连;系统采用液压泵并联两个变量马达的传动方式,在所述液压泵调速机构和前液压马达调速机构以及后液压马达调速机构的共同作用下调节双马达的转速范围,实现无级变速范围大、扭矩变化范围广等特性,弥补了目前工程车辆工作时液压系统变速和扭矩范围窄的缺陷。
Hydraulic pump control double-motor transmission system
一种液压泵控双马达传动系统
2022-06-24
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
Double capacity hydraulic pump
Engineering Index Backfile | 1954
Hydraulic Hybrid Transmission with control of Hydraulic Motor
European Patent Office | 2019
|