First. The composition of the Tractor steering valve.
The Tractor steering valve consists of a control valve body, gears, gear shaft, piston, and hydraulic cylinder. The reversing valve is divided into front and rear oil circuits, and the high-pressure oil flow is introduced into the pressure oil chamber through the hydraulic control check valve through the operation of the control valve body, so that the piston moves along the axis under the action of pressure, and the gear meshing wheel shaft of the tooth meshing wheel shaft is meshed with the gear on the power take-off shaft, so as to realize the purpose of the tractor moving forward or backward.
Second, the working process of the tractor steering valve.
1. Forward state: when the tractor is in the forward state, the operating mechanism of the control valve body is that the high-pressure oil flow from the hydraulic pump enters the front oil circuit through the control valve in the reversing valve, and the piston is driven to move to the left, and the planetary gear on the gear shaft moves to the left, and in the process of meshing with the planetary gear on the power take-off shaft, the power is transmitted to the power take-off shaft and the wheel is driven forward.
2. Regression state: when the tractor needs to reverse, the operating mechanism switches the control valve in the control valve body to the rear oil circuit, that is, the control of high-pressure oil flow into the rear oil circuit of the reversing valve, so that the piston moves to the right, and the planetary gear on the gear shaft moves to the right at this time, and in the process of meshing with the planetary gear on the power take-off shaft, the power is reversed output to the wheel, so as to realize the regression of the tractor.
Third, the role of each component of the tractor steering valve.
1. Hydraulic pump: provide high-pressure hydraulic oil.
2. Reversing valve: switch the front oil circuit and the rear oil circuit.
3. Hydraulic control check valve: the liquid flows to the pressure oil chamber under the action of pressure to prevent it from entering the reverse oil circuit.
4. Hydraulic cylinder: converts the thrust of the pressure oil into mechanical energy to push the piston to move.
5. Gear shaft: output power to power take-off shaft.
As an important component of the tractor transmission system, the working principle and the role of each component are very important. Understanding how the Tractor Steering Valve works allows for a deeper understanding of how the tractor drive system works, so as to better maintain the use of the tractor.
electrohydraulic steering valve
electrohydraulic steering system