The invention discloses a double-loop integral steering gear and a power-assisted steering system. The double-loop integral steering gear comprises an input shaft device, a motor steering screw and a shell. The shell comprises a left shell body and a right shell body, a piston is connected into the right shell body in a sliding mode, the input shaft device is rotatably connected into the left shell body, one end of the steering screw is in threaded connection into a threaded hole of the piston, and the other end of the steering screw is rotatably connected into the left shell body and connected to the periphery of the input shaft device in a sleeving mode. The input shaft device is connected with the steering screw through a steering valve core torsion bar. Teeth on the peripheral face of the piston are meshed with a gear sector, the motor is connected with the input shaft device through a speed reduction device, the torque sensor is connected to the input shaft device or integrated outside an input shaft to obtain torque signals of a steering wheel, and the motor transmits electric power torque to the steering screw according to the torque signals of the steering wheel and vehicle speed signals of a vehicle. The system can meet the requirement for large-axle-load power-assisted steering, and the problem of poor control feeling is solved.
本发明公开了一种双回路整体式转向器、转向助力系统,包括输入轴装置、电机转向螺杆和壳体;壳体包括左壳体和右壳体,右壳体内滑动连接有活塞,输入轴装置转动连接在左壳体内,转向螺杆的一端螺纹连接在活塞的螺纹孔内,另一端转动连接在左壳体内,且套接在输入轴装置的外周,输入轴装置和转向螺杆之间通过转向阀芯扭杆相连接;活塞外周面上的齿和齿扇相啮合,电机通过减速装置和输入轴装置相连接,扭矩传感器连接在输入轴装置上或集成在输入轴外以获取方向盘的力矩信号电机根据方向盘的力矩信号和车辆的车速信号向转向螺杆传递电动助力扭矩;本申请可满足大轴荷转向助力、并解决了操纵感差的问题。
Double-loop integral steering gear, power-assisted steering system and crane
一种双回路整体式转向器、转向助力系统及起重机
2021-07-13
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Single-loop integral type steering gear, power-assisted steering system and crane
European Patent Office | 2021
|Rotary valve type double-loop semi-integral hydraulic power-assisted steering gear
European Patent Office | 2021
|Steering system of novel electric control double-hydraulic power-assisted steering gear
European Patent Office | 2024
|