Too much change with engine speed

The new hydraulic steering system introduces a hydraulic steering system with good steering stability, compact structure, small size and relatively high efficiency. 1. Steering cylinder 2. Steering valve 3. Steering 4. Constant current valve 5. Steering pump. System working principle 1) When the steering wheel is not moving, the hydraulic oil output from the steering pump flows back to the oil tank through the constant flow valve and the steering valve. Since the steering valve is in the neutral position, the front and rear chamber oil pressures of the steering cylinder are equal, so the front and rear frames are kept at a certain relative position; 2) when the steering wheel is rotated, the spool of the steering valve generates a certain amount as the steering wheel rotates. Displacement, the hydraulic oil passes through the constant flow valve, and the steering valve enters the side of the hydraulic cylinder to make the front frame steer. With the relative deflection of the front frame, the follower rod connected with the front frame drives the rocker arm forward or backward. After the swing, the bevel gear, the rack and the nut also swing upward and downward with the rocker arm, so that the sliding core of the steering valve returns to the middle position. The steering cylinder stops the oil and the steering stops. At this time, the front and rear frames are kept at a certain angular position, and the steering process is completed. 3) The steering wheel is continuously rotated, and the steering angle of the frame is also constantly changed. The larger the steering angle of the steering wheel is, the larger the stroke of the steering cylinder is. The steering angle is also larger; 4) The working pressure of the system during the steering process depends on the condition of the road. On a flat road surface, the working pressure of the system is relatively low due to the relatively small driving resistance. On the contrary, the working pressure is higher. The highest working pressure in the steering system is adjusted by the adjustment screw mounted on the constant flow valve.

The function and working principle of the constant flow valve. The constant flow valve of the constant flow valve is a special valve with special structure and special purpose. It has the following unique important functions in the steering system: (1) The oil flow of the hydraulic pump to the steering valve Basically stable at a certain value, the oil flow rate of the supply steering is not changed too much with the engine speed to achieve good steering stability; (2) a pilot safety cone valve is provided in the constant flow valve, so that The entire steering system pressure is controlled within a certain range to achieve the steering system with sufficient ability to overcome the resistance, and to ensure the safe and reliable operation of the steering system.

Product advantages: