Agricultural submersible pump precautions

Agricultural submersible pump precautions should be submersible pump to make the necessary maintenance, to extend its life and to ensure the normal use of busy, the following is the agricultural submersible pump should pay attention to 7 points

1, Change the lubricating oil: open the oil seal holes in the seal chamber and the electric motor respectively, release the lubricating oil inside the sealed chamber and the electric motor, replace the new oil, and ensure the normal operation of the lubricating system.

2, check wearing parts: submersible pump impeller, buckle, sleeve, bearing seat, etc. are wearing parts. The self-priming pump should first remove the department to check whether the consumables intact. It is forbidden to use damaged and disqualified parts.

3, the demolition of the pump casing rust: spring before use, should be disassembled the top level pump casing, rolling impeller and then start closing, to prevent rusting parts can not start normally and burn the motor. This maintenance is especially important for water filled motors.

4, dry the motor: Use 500 megohms to measure the insulation resistance of the submersible pump windings and the shell, if the resistance is less than 0.5 megohms, you should get rid of motor moisture. Drying methods are: external drying method, current drying method and the combination of both at the same time dry. External drying method is equal to the use of external heat source for processing, commonly used measures are: ⑴ hot air: the use of electric heater blower (small submersible pump available hair dryer) hot air blowing to achieve the purpose of drying; ⑵ lamp baking: Inside the box, use several 200-watt light bulbs for baking. Pay attention to the baking temperature can not be too high, should be controlled below 125 ℃; ⑶ current drying: according to the submersible pump impedance and power supply size of the idea of ​​three-phase windings in series or parallel, and then access a variable resistor, Flow rate of about 60% of the rated current, electricity drying.

5, to ensure that the seal: agricultural submersible pumps on the sealing requirements are very strict, when changing the sealed chamber of lubricating oil, oil quality if found cloudy and high moisture content, you must replace or replace the entire seal box or seal ring to ensure that its seal Good function.

6, check the bearings: check the electrical sector of the upper and lower bearings, if found to wear or clearance is too large, the timely replacement of new bearings, non-use of "sick". Check the method is as follows: If the motor is running, resulting in "carbazole" sound, and the cycle is proportional to the speed, and feel hard when rolling the rotor, the bearing raceway is a bit astringent or avulsion phenomenon; If the bearing intermittent The "哽 哽" sound, rolling the rotor by hand when there is an uncertain dead, the general is the ball rack damage, the inner ring ruptured or ball broken. In the event of the above situation, the bearings must be replaced to avoid any further damage.

7, to ensure bearing lubrication: water-filled submersible pump should check the replacement of the upper and lower end of the bearing housing skeleton oil seal and lithium-based grease. To ensure long-term bearing lubrication in good condition.

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Horizontal Cutting Machine

Box shear machine is horizontal structure, the equipment is driven by hydraulic pressure. Compared with mechanical shear machine, it has the characteristics of small size, light weight, small inertia, low noise,stable movement, flexible operation and large shear section. With the integrated control of hydraulic and electronics, single and continuous action conversion can be implemented, which is simple and convenient to use. In shearing, the material cut does not need manual support, as long as according to the shearing speed, the shearing material can be continuously added to the equipment bin.