German Tiger electronics pump Tiger electronics model Tiger electronics price

Tiger electronics pump is a pump in which the vanes in the rotor slots contact the pump casing (stator ring) to press the sucked liquid from the oil inlet side to the oil outlet side. There are two types depending on the type: one) specifically refers to vane pumps among positive displacement pumps. two) refers to the three pumps of dynamic pumps (centrifugal pumps, mixed-flow pumps, axial-flow pumps) or other special pumps. Such pump products are generally not called vane pumps. However, in monographs, vane pumps almost entirely refer to centrifugal pumps, mixed-flow pumps, axial-flow pumps, etc. According to whether the theoretical displacement per revolution is a fixed value or a variable value, it can be divided into variable displacement vane pumps and fixed displacement vane pumps.

Tiger electronics pump working principle

Its operating principle is similar to that of a single-acting vane pump. The only difference is that the stator surface consists of eight parts: two long-radius arcs, two short-radius arcs, and four transition curves, and the stator and rotor are concentric. With the rotor rotating clockwise as shown in the figure, the volume of the sealed working chamber gradually increases at the upper left and lower right corners, forming the oil suction area, and gradually decreases at the lower left and upper right corners, forming the oil pressure area; there is an oil sealing area between the suction area and the pressure area to separate them. For each revolution of the rotor of this pump, each sealed working chamber completes the oil suction and oil pressure actions twice, so it is called a double-acting vane pump. The two suction areas and two pressure areas of the pump are radially symmetrical, and the hydraulic pressure acting on the rotor is radially balanced, so it is also called a balanced vane pump. The instantaneous flow rate of a double-acting vane pump is pulsating, and the pulsation rate is small when the number of vanes is a multiple of 4. Therefore, the number of vanes for double-acting vane pumps is generally taken as 12 or 16.

Tiger electronics pump precautions for use

In addition to preventing dry running and overload, preventing air intake and excessive suction vacuum, the management points for vane pumps also include: 1) If the pump rotation direction changes, its suction and discharge directions also change. Vane pumps have a specified rotation direction and reverse rotation is not allowed. Because the rotor vane slots are inclined, the vanes have chamfers, the bottom of the vanes is connected to the discharge chamber, and the throttle grooves on the distribution plate and the suction/discharge ports are designed for the specified rotation direction. Reversible vane pumps must be specially designed. 2) Vane pump assembly: The distribution plate and stator must be correctly positioned with locating pins. The vanes, rotor, and distribution plate must not be installed backwards. The suction area part of the inner surface of the stator is most prone to wear. If necessary, it can be flipped for installation so that the original suction area becomes the discharge area for continued use. 3) Disassembly and assembly: Pay attention to the cleanliness of the working surfaces, and the oil should be well filtered during operation. 4) If the clearance between the vanes and the vane slots is too large, leakage will increase; if it is too small, the vanes cannot extend and retract freely, leading to abnormal operation. 5) The axial clearance of the vane pump has a great impact on ηv. 1) Small pumps - 0.015 ~ 0.03mm2) Medium-sized pumps - 0.02 ~ 0.045mm6. Oil temperature and viscosity: Generally should not exceed 55 ℃, and viscosity requirements are between 17 ~ 37mm2/s. If the viscosity is too high, oil suction is difficult; if the viscosity is too low, leakage is severe. As pump products, vane pumps more often refer to vane pumps. Vane pumps almost entirely refer to vane pumps.

Tiger electronics pump common problems

1) Insufficient flow. Causes and troubleshooting methods for insufficient flow in vane pumps. Loose screws at the top cover cause increased axial clearance and decreased volumetric efficiency. Tighten the screws appropriately to ensure uniform and appropriate clearance (clearance is 0.04 ~ 0.07 mm). If individual vanes slide inflexibly, clean them. If they remain inflexible after cleaning, adjust them slot by slot. Wear on the inner surface of the stator prevents good contact between the vanes and the stator inner surface. Wear on the stator inner surface generally occurs at the suction chamber. Severe wear on the end face of the distribution plate requires replacement. If the vanes and rotor are installed backwards, align the vane inclination direction with the rotor's rotation direction. Large system leakage requires checking each component for leaks and checking if the pressure gauge is clogged with dirt. 2) Oil cannot be sucked up. Causes and troubleshooting methods for vane pumps failing to suck up oil. If the oil level is too low, check and fill to the specified oil mark line. If the oil viscosity is too high, causing inflexible sliding of vanes in the rotor slots, generally use 20# hydraulic oil or 22# turbine oil. Poor contact between the end face of the distribution plate and the housing plane causes communication between high and low-pressure chambers; repair the end face of the distribution plate. Sand holes inside the pump body cause communication between high and low-pressure chambers; replace the pump. If the motor rotation direction is reversed, correct it. 3) Excessive pump noise. Clogged oil filter causes poor oil suction; clean it. Air leakage at the suction end: Apply butter to check the suction pipe joints one by one. If the noise decreases, tighten the joints. Directly observe if bubbles appear at the oil return port. Wear on the pump end seal: Apply butter to the shaft end oil seal. If the noise decreases, replace the oil seal. Pump cover screws loosen due to vibration: Apply butter to the screw connections. If the noise decreases, tighten the screws. Misalignment between the pump and motor shaft: Re-adjust to make them concentric. If the two sides of the rotor vane slots are not perpendicular to their two end faces, replace the rotor. Unloading of the distribution plate: If the triangular groove is too short, modify it appropriately with a file so that when the previous vane passes the unloading groove, the next vane has already left the suction chamber. If the seal at the spline shaft end is too tight (causing a hot-to-touch phenomenon), adjust or replace it appropriately. If the pump speed is too high, use it at the specified speed. If the oil pump suction volume is insufficient, check the oil level. If the hydraulic oil is severely contaminated, remove the oil filter, check if it is damaged or has significant solid adsorption, and replace the oil filter and hydraulic oil. Pressure fluctuation: Check the wear condition of the pump core total pressure valve spool.

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