The electric motor and body of the electric hydraulic thruster are connected by a cover. The body of the device is equipped with a piston with two push rods, and a impeller is connected to the shaft inside the piston. The shaft is supported by a support plate equipped with rolling bearings, which is fastened to the piston and secured with screws. The upper end of the device is connected to the crossbeam through a push rod, and the crossbeam is equipped with a connecting rod for connecting the pin shaft and the matching hydraulic push rod brake. The pin hole under the body is also used for connection. When powered on, the main shaft of the motor drives the slide to rotate the shaft and the impeller on the shaft at high speed. Under the action of centrifugal force, the oil in the oil pipeline generates a pressure difference, which causes the oil to be sucked from the upper part of the piston to the lower part of the piston, forming a high pressure at the lower part of the piston, forcing the piston and the push rod and crossbeam fixed on it to rise rapidly. When the piston rises to the top position, the lower part of the piston maintains a constant pressure. At the same time, mechanical motion is generated by compressing the load spring through a lever mechanism (for thrusters or brakes with load springs). (If matched with YWZ series hydraulic push rod brake, release the brake) When the power is cut off, the impeller stops rotating, and the piston rapidly descends under the force of the load spring and its own gravity, forcing oil to flow back into the upper part of the piston. At this time, it still returns to its original position through the lever mechanism. [If matched with YWZ series brake, hold the brake].
YT1-18Z/2 YT125ZB/4 YT125ZC/4 YT1-45Z/4 YT1-45Z/5 YT1-45Z/6 YT1-90Z/6 YT1-90Z/8 YT1-125Z/10 YT1-180Z/8 YT1-180Z/10 YT1-180Z/12 YT1-320Z/12(B) YT1-320Z/20(A) YT1-320Z/35 YT1-350Z/12 YT1-350Z/20 YT1-350Z/35
4、 Usage regulations:
1. Installation test: First, check whether the thrust on the nameplate of the electric hydraulic thruster product matches the required force: remove the oil stains on the motor and body surface, and check whether the push rod lifting is smooth. Unscrew the oil filling plug 5 (Figure 3) and the oil level plug 3, and inject suitable pure hydraulic oil until the screw hole 3 is reached. Then tighten plug 3 and plug 5. According to the temperature of different surrounding media, it is recommended to use hydraulic oil according to Table 6. The temperature of the surrounding medium is+45 ℃~+21 ℃+20 ℃~+0 ℃+0 ℃~+0 ℃~-15 ℃~-30 ℃ below -30 ℃. It is recommended to use oil to connect the lower part of the hydraulic thruster with a pin shaft, and to connect the connecting rod of the crossbeam with the lever device with a pin shaft. After testing that the external power supply matches the motor nameplate, connect the motor terminal to the external power supply correctly. Connect the power supply and check if the impeller is running smoothly and if the push rod is lifting smoothly. 2. Usage and maintenance: Check if the electric hydraulic thruster is working properly and if there is any oil leakage or seepage. Regularly maintain a certain amount of oil. However, please note that the oil level should not be higher than the oil level plug. If it is higher than the oil level plug, there may be oil leakage at the push rod, motor, and cylinder head. Check the oil at least once every six months. When the oil deteriorates or is mixed with impurities, and the viscosity increases, the oil should be replaced. If the oil selection is inappropriate, another option should be chosen. Check whether the motor wiring is good, whether the protective device is appropriate and reliable.
5、 Lubrication instruction table
Lubricating parts: The bearing period of the electric motor at the hinge is limited to six months per week. Lubricating materials include calcium sodium based grease or 45-50 # engine oil calcium sodium grease. Remarks:
6、 Fault analysis and elimination
Fault location: Push rod spring motor malfunction. There are fatigue cracks and abnormal noise during operation. Reason analysis: Failure, troubleshooting method: replacement
The wiring inside the motor is incorrect, the voltage is checked and the wiring system is checked, and the stator is not tightly matched. The bearing is worn and the pressure is reduced. The stator is checked and repaired, and the bearing slide and shaft are replaced. The impeller rolling key spring force is too strong, and the push rod is stuck. The network voltage is below 85% of the rated voltage, and the oil leakage is severe. The oil level is insufficient, the oil level is too high, and there is damage or unqualified. The bearing is dirty, the oil is lacking, the isolation ring is damaged, and the rolling element is overloaded or working under low voltage. Some silicon steel sheets are locally short circuited. The slide is replaced. The shaft or impeller adjustment spring is eliminated, and the voltage is increased. The oil is replenished and the oil is replenished to release the oil. The bearing or lubricating oil is replaced. The dirt is eliminated. The oil is added and the working The, And apply insulation paint to the repaired area afterwards. Check the current of each phase and eliminate "misconnected" phases, use indicator lights or high negative meters to determine the location of damage and remove it.
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