Oil motor The basic working principle and internal schematic diagram The basic working principle of the oil motor can be understood according to the structure of the traditional "Staffa" motor shown in Figure 2-4 (the same as the JMD type produced in China).

The basic working principle of the oil motor can be understood according to the structure of the traditional "Staffa" motor shown in Figure 2-4 (the same as the domestic production of jmd type). The motor is composed of a plunger, a connecting rod, a transmission shaft, a star shell, and a flow distribution shaft. In the star shaped housing 9 of the motor, five plunger cylinders are evenly distributed radially around the circumference, and each plunger cylinder hole is equipped with a plunger 1. The ball cage with the small end of the connecting rod 2 is installed at the center ball socket of the plunger. The concave circular surface of the large end of the connecting rod is close to the eccentric circle of the transmission shaft 4, and the connecting rod 2 is pressed according to two pressure rings 3 to prevent separation from the eccentric circle. The drive shaft 4 is supported on the machine cover and housing according to a pair of tapered roller bearings. The extended end of the transmission shaft is the working output shaft of the motor. The other end of the drive shaft pulls the port shaft 6 according to the cross slider coupling 5 to rotate. In this way, the jamming caused by different deviations in production, processing and installation can be prevented. Crusher Operating principle of hydraulic motor

The motor is composed of a plunger, a connecting rod, a transmission shaft, a star shaped housing and a flow distribution shaft. In the star shaped housing 9 of the motor, five plunger cylinders are evenly distributed radially around the circumference, and each plunger cylinder hole is equipped with a plunger. 1. A ball cage with a small terminal of the connecting rod 2 is installed at the center ball socket of the plunger. The concave circular surface of the large terminal of the connecting rod is close to the eccentric circle of the transmission shaft 4, And press the connecting rod 2 according to two pressing rings 3, To prevent separation from the eccentric circle, the transmission shaft 4 is supported on the machine cover and housing according to a pair of tapered roller bearings. The extension end of the transmission shaft is the working output shaft of the motor. The other end of the transmission shaft pulls the flow distribution shaft 6 according to the cross shaped slider coupling 5 to rotate. This can prevent the jamming caused by different centers of production, processing and installation deviation. The flow distribution shaft 6 is supported in the valve housing 7 On the needle bearing 10. There are two rings a and b on the left side of the port shaft, which are interconnected with the inlet and outlet oil inlets on the valve housing through the radial holes on the port sleeve. The ring groove a is interconnected with the port window m on the lower right side by virtue of the axial oil inlets c and d on the port shaft (C-C profile), and the ring groove 6 is interconnected with the port window n on the upper right side by virtue of the axial oil inlets e and f, There is one radial channel D (see Figure 2-4) at the top of each of the five plunger cylinders, which communicates with the port window m and n on the port shaft, and is connected to the oil inlet and return oil inlet on the housing according to the port shaft. Figure 2-6 shows the operating schematic diagram of the crankshaft connecting rod motor. Ningbo Crusher hydraulic motor

The port shaft 6 is supported on two needle bearings 10 in the valve housing 7. There are two rings a and b on the left side of the port shaft, which are interconnected with the inlet and outlet oil inlets on the valve housing through the radial holes on the port sleeve. The ring groove a is interconnected with the port window m on the lower right side by virtue of the axial oil inlets c and d on the port shaft (C-C profile), and the ring groove 6 is interconnected with the port window n on the upper right side by virtue of the axial oil inlets e and f, There is one radial channel D (see Figure 2-4) at the top of each of the five plunger cylinders, which communicates with the port window m and n on the port shaft, and is connected to the oil inlet and return oil inlet on the housing according to the port shaft. Figure 2-6 shows the operating schematic diagram of the crankshaft connecting rod motor. Hydraulic gear motor