ZYB external lubricating residual oil gear pump

All parts of the ZYB external lubricating residue gear pump are made of carbon steel structure and alloy structural steel, and the heat treatment method has high performance, without the occurrence of burrs and bonding of rotating parts. When operating under high pressure, the ZYB external lubricating residue gear pump has low noise and vibration, stable operation, and stable pressure

The internal parts of this pump are all lubricated independently and do not require daily maintenance during operationDue to its volume, this pump can operate at a constant pressure at a low speed of 120r/min, which is not easily achieved by conventional gear pumps. The appearance of the pump is fully machined, with neat contour lines, good symmetry, and a beautiful and elegant appearance

The bearings of ZYB external lubricating residual oil gear pump also need to be replaced regularly. Many customers have reported that they wear out very quickly after replacing the bearings. Below, let's introduce six points to pay attention to when replacing bearings for all carbon steel high-pressure gear type residual oil pump:

Firstly, after running for 2000-3000 hours, the lubricating oil in the bearing body should be added or replaced in a timely manner to ensure good lubrication of the bearings and prolong their service life.

Secondly, it is recommended to replace the bearings together with the pump internal seals, and clean the carbon deposits inside the impeller to ensure sufficient flow and pressureThirdly, the bearings that users replace are mostly purchased from the electromechanical market or bearing stores. Users only consider the model when purchasing bearings and ignore the high temperature and high speed characteristics of the oil pump. Choosing bearings requires the conditions of high temperature and high speed, otherwise they are not suitable for pumps4. There are problems with the bearing assembly process; When assembling bearings in the factory assembly workshop, tools are used. The tools used for arranging the first bearing and the second bearing are different, with the aim of simultaneously applying force to the inner and outer rings of the bearing to maintain its original performance. It is understood that many users neglect the process of bearing installation when replacing bearings, and the use of non tool arrangement often leads to human damage to the bearings due to improper force during installation, which is a crucial issue5. When replacing bearings, it is also necessary to determine the degree of wear on the shaft. If the carbon fiber packing is severely worn, it is recommended to replace it together with the coaxial shaft. Severe wear on the carbon fiber can cause the residual oil to mix with the lubricating oil in the oil chamber, causing the lubricating oil to lose its lubricity. In addition, impurities in the residual oil in the pipeline can also roll into the bearing, accelerating bearing damage6. After the pump head is assembled, use water immersion to apply air pressure to check for air leakage. If there is any air leakage, it indicates that there is an inadequate sealing during the assembly process; Then, it is necessary to adjust the concentricity of the pump head and motor assembly, otherwise the noise will be loud and the internal rubber blocks of the coupling will wear out too quicklyWhat factors should be considered for bearing sealing of ZYB external lubricating residual oil gear pumpBearings are a common type of product, and good bearings require excellent sealing performance during use. Currently, the sealing of bearings can be divided into two types: self sealing and external sealing. Generally, self sealing is relatively simple and the cost is relatively low. The external sealing performance device of bearings is manufactured into sealing devices with various performance inside the installation end cover, etc. In order to achieve excellent external sealing performance, some factors need to be considered during the sealing process

The factors that need to be considered when applying seals to bearings include:

1. Bearing lubricants and types (grease and oil)

2. The working environment of the bearing and the size of the space occupied3. Advantages of the supporting structure of the shaft, allowing for angle deviation4. The circumferential velocity of the sealing surface5. Operating temperature of bearings6. Manufacturing costsAccording to the requirements of bearing working conditions and working environment for sealing degree, various sealing forms are often comprehensively used in engineering design to achieve good sealing effect