Vofcit Pump Industry
News Center
02
2023
-
06
Maintenance process of internal gear pump
Author：
The transmission gears of the internal gear pump generally have straight teeth, bevel teeth, herringbone teeth, helical teeth, and tooth profile keys have involute gears and arc gears. Generally speaking, small and medium-sized gear pumps mostly use involute gear spur gears, high-temperature gear pumps commonly use displacement gears, and low viscosity, polymer dissolved melt pumps commonly use involute gear bevel gears. Electric gears are integrated with shafts, and their stiffness and reliability are higher than gear pumps produced by electric gears and shafts. The electric gears of foreign pressure gear pumps often use square structure. That is, the tooth width of the transmission gear is equal to the diameter of the tooth top circle. The total transmission gear width of the low-viscosity gear pump applied to the pressure field is lower than the diameter of the tooth top circle, the purpose of which is to reduce the total axial force area of the transmission gear and reduce the load of the transmission gear and rolling bearing. Gear oil pump is a new type of mechanical equipment for transporting liquid, which has the advantages of simple structure, reliable work, convenient application inspection, continuous uniform discharge, and stable working pressure.
Maintenance process of internal gear pump:
1. The gear pump pipeline and joint are not loose. Rotate the gear pump by hand, you can try whether it is convenient.
2. Add rolling bearings to the main body of the rolling bearing to lubricate the automobile oil. The oil check amount should be located on the oil pan shaft and the grease should be replaced or topped up immediately.
3. Pry open the water intake oil plug and grouting water (or slurry) of the gear pump housing.
4. Close the globe valve of the outlet channel, the inlet and outlet air pressure gauge and the inlet negative pressure gauge.
5. Start the light-emitting motor and test whether the motor is suitable.
6. After starting the motor and gear pump all operate normally, open the inlet and outlet barometer and the imported pump, view their information, generate the appropriate operating pressure, and then slowly open the shut-off valve to check the motor load status.
7. Operate the total flow of the gear pump and the water pump lift within the range indicated by the sign as much as possible, so that the gear pump works at the efficiency point in order to achieve the actual effect of environmental protection and energy saving.
8. The rolling bearing temperature of the gear oil pump cannot exceed the working temperature of 35C and the temperature cannot exceed 80C during the whole working process.
9. If you find that the gear pump has an abnormal sound, first stop and check.
10. After the gear oil pump is deactivated, first close the globe valve, barometer, and turn off the motor.
11. The gear oil pump decomposes grease for 100 hours within one month of work, and then changes the oil every 500 hours.
12. Frequently adjust the filling rotating cover to ensure that the leakage state in the filling room is normal (proper leakage).
13. Regularly maintain the damaged state of the shaft sleeve, and replace it immediately after the damage is large.
14. After the gear oil pump is stopped during the cold winter application, a water plug should be put under the pump casing to wring out the substance to avoid freezing cracking.
15. The gear oil pump should be stopped for a long time, all the disassembly of the pump should be carried out, wiped the moisture, smeared with vegetable oil at the rotating position and connection, and properly kept.
Previous
Previous
Latest News
2023-06-02
Maintenance process of internal gear pump
The transmission gears of the internal gear pump generally have straight teeth, bevel teeth, herringbone teeth, helical teeth, and tooth profile keys have involute gears and arc gears. Generally speaking, small and medium-sized gear pumps mostly use involute gear spur gears, high-temperature gear pumps commonly use displacement gears, and low viscosity, polymer dissolved melt pumps commonly use involute gear bevel gears.
2023-06-02
Internal gear pump, do you understand?
The structure of the internal gear pump has the characteristics of simple, convenient processing, small size, light weight, strong self-absorption capacity, and insensitivity to oil pollution, and is widely used. China's gear pump industry has two major competitive advantages, on the one hand, it has the competitive advantage of low cost; At the same time, the rapid growth of domestic construction, petroleum, petrochemical and environmental protection markets and major water transfer projects have also provided important support for the development of China's gear pump industry.
2023-06-02
The structure of the internal gear pump
The internal gear pump is a gear pump with special acid resistance and wear resistance. Its characteristics are: install the active shaft and the ordinary attack shaft on the shell, install the transmission fish on a section where the active shaft is located in the shell, install the transmission fish meshing with the transmission fish teeth on the ordinary attack shaft, make a pair of transmission fish, set the inlet and outlet of raw materials on the shell, and set ceramic fiberboard on the inner cavity of the transmission fish pair under the cover content. The equipment improves the acid resistance and wear resistance of the gear pump according to the change of gear pump structure.
2023-06-02
The working principle and maintenance method of the internal gear pump
Internal gear pumps are widely used in petroleum, chemical, shipbuilding, electric power, grain, petroleum, food, medical, building materials, metallurgy and defense research industries. Internal gear pump is through a pair of parameters and structure of the same involute gear rolling meshing, the tank in the low pressure oil to the operable high pressure oil important components, which is the engine mechanical energy into hydraulic energy power unit, today to introduce to you the internal gear pump working principle and maintenance method.
2023-06-02
Classification, characteristics and applications of gear pumps
Gear pumps are generally divided into external meshing type (external gear pump) and internal meshing type (internal gear pump) according to the configuration mode of the meshing pair, and the internal gear pump includes a cycloid gear pump with a special tooth shape.