1, the importance of the pump Pair pump and motor coupling shaft connected to the two centers of rotation should be strictly concentric, the coupling must be accurately installed in the correct alignment, or in the coupling Which causes great stress and will seriously affect the normal operation of shafts, bearings and other parts on the shaft and may even cause vibration or damage to the entire machine and foundation. Therefore, the pump and motor coupling is to find the installation and maintenance process is an important part of the work. 2, the coupling is to find the case of offset analysis When installing a new pump, the coupling between the end face and the vertical axis can not be checked, but the installation of the old pump, be sure to carefully check and found not vertical When you want to adjust the vertical alignment. Under normal circumstances, you may encounter the following four situations. 1) S1 = S2, a1 = a2 Both ends of the backrest wheel are in the correct position both parallel and concentric, when the two axes must be in a straight line. 2) S1 = S2, a1 ≠a2 Both ends of the backrest wheel are parallel but the axes are not concentric. In this case, there is a parallel radial displacement e = (a2-a1) / 2 between the two axes. 3) S1 ≠S2, a1 = a2 Although both ends of the backrest wheel are concentric but not parallel, there is an angular displacement α between the two axes. 4) S1 ≠S2, a1 ≠a2 Both ends of the backrest wheel are neither concentric nor parallel, and there is both radial displacement e and angular displacement α between the two axes. Coupling in the first case is that we are looking for the state is committed to achieve the state, and the second, third and fourth state are not correct, we need to make adjustments to achieve the first case. When installing the equipment, first install the slave (pump) so that its axis is at a horizontal position and then install the master (motor). Therefore, you only need to adjust the master when looking up, that is, when the master (motor) The following adjustment method to adjust the mat surface. 3, looking for timing measurement adjustment method The following mainly introduces two measurement adjustment methods commonly used in the maintenance process, according to the different measurement tools can be divided into: 1) the use of a knife-shaped ruler and feeler gauge coupling heart and the use of wedge Clearance gauge or feeler gauge measures the non-parallelism of the coupling end face. This method is suitable for low speed, low precision equipment with elastic coupling. 2) The use of dial indicator and table or special tool to find a tool for measuring the two concentric and non-parallel coupling, this method is suitable for high speed, rigid coupling and high precision rotating equipment. Note: 1) When using feeler gauge and knife-shaped ruler, the surface of the radial end of the coupling should be smooth, rust-free and burr-free. 2) In order to see the blade-shaped light, it is best to use a flashlight. 3) For the final measurement, the motor anchor bolts should be completely tightened without any looseness. 4) When using special tools to find the correct mark, make the same mark. In order to avoid the error of measurement data increase, the back wheel should be divided into 4-8 points in order to get accurate data. 5) Make an important part of making corrections. There are several ways to adjust the pad surface: 1) Straight (sense) view (experience plus pad) Because some of the pumps do not fully meet the requirements and tools for troubleshooting, Experience will play a big role (each plus, minus pad should consider the motor bolt tension and the rest). 2) Calculation method I The original state â…¡ elevation Δh â…¢ axis after adjustment (1) to eliminate the differential height of the shaft motor shaft should be upward uph with the gasket, which is the front bearing A and the rear bearing B should be padded under the seat at the same time Δh. (2) to eliminate the mouth of the coupling in the A, B support were added under the different thickness of the gasket, B seat plus pad should be more than the A seat after some. The total thickness of the shims is adjusted as follows: Front support A: Δh + AC; Rear support B: Δh + BD. Pump coupling to find the center of the standard deviation (unit: mm) Speed ​​Rigid elasticity ≥3000 ≤0.02 ≤0.04 <3000 ≤0.04 ≤0.06 <1500 ≤0.06 ≤0.08 <750 ≤0.08 ≤0.10 <500 .gunsq1 li {display: block; overflow: hidden;} [Buy] Fire pump, spray pump, sewage pump [Buy] Bearing Accessories [Buy] Air lock valve [Buy] Signal amplifier [Buy] Valve [Procurement] Centrifugal pump ã€Purchase】 Vertical Multi-stage Pump ã€Purchase】 Cylinder ã€Purchase】 Speed ​​?? 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Chengdu to speed up the construction of the exhibition eco-circle and strive to form a multi-billion industry in 2020 Xinhua News Agency published an interview with the executive director of China Pavilion Astana Expo 2010 Interview with Yao Rui Media Focus Exhibition Information Product Guide National Environmental Chemistry Metrology Technical Committee released "Mining Hydrogen sulfide gas detector, "the test procedures for micro-plastic pollution control breakthrough draft advice artificial intelligence nano-machine implantation will likely lead to a wave of unemployment · Yichang City, issued in 2017 soil pollution prevention and control work points · Ministry optimistic about the prospects of environmental protection equipment industry is expected to 2020 The output value will reach trillion · 34 provinces in 8 provinces set off the autumn and winter of 2017 "Blue Sky Battle" · National Environmental Chemistry Metrology Technical Committee released the "mining hydrogen sulfide gas detector" verification requirements Draft · Shandong want to vote 5.3 billion construction 353 Hazardous waste disposal project · breakthrough in micro-plastic pollution control · Development and Reform Commission for non-residents of urban water out of new regulations · the State Council promulgated the "Notice on the Third National Land Survey" · artificial intelligence nano-machine implantation will likely lead to a wave of unemployment · New hydraulic pump can work at 1400 ℃ will be used for solar hair · Stanford recently successfully developed ultra-cheap batteries instead of lithium-ion batteries · Jiangxi introduced measures to control the whole industry chain of rare earth REA crack down on illegal activities · "People's Republic of China Environmental Protection Tax Law" January 1, 2018 release "China Ambient Air Quality management evaluation report (2017) "issued a lot of pm2.5 decreased significantly ·" Soil Pollution Prevention Law "is about to start second trial soil repair market bullish 2018 Xiamen International Vending Machine and self-service products Exhibition Venue - Time 2018 Smart Retail in Xiamen Terminal Conference Venue - Time - Register Contact Us - 2018 Kunming Beauty Expo Registration Contact - Venue - Time 2018 Xiamen International Vending Machine and Self-service Products Exhibition Venue - Organizing Time · 2018 Xiamen Smart Retail Terminal Conference Venue - Time - Registration Contact - Exhibitors Fees 2018 The thirteenth Western Boiler Heating Ventilation and Air Conditioning and Refrigeration Equipment Exhibition · 2018 The 14th North China boiler HVAC Equipment Exhibition · IE expo 2018 The 19th China Central Bo Will · 2018 Kunming Beauty Expo Registration Contact - Venue - Organizing Time · 2018 Kunming Beauty Expo venue - Time - Registration Contact - Participation Fee 2018 Wuhan US Fair Registration Contact - Location - Time 2018 Wuhan Beauty Expo where? · 2018 Wuhan Beauty Expo venue - Registration Contact - Time - Participation Fee 2018 Wuhan Beauty Expo Registration Contact - Location - Time - Participation Fee · 2018 February US International Water Treatment Environmental Exhibition · February 2018 Mexico Industry Manufacturing Exhibition · 2018 February India International Machine Tool and Molding Equipment Exhibition · February 2018 Turkey International Pump Valve Water Treatment and Air Conditioning and Refrigeration Exhibition JY-Q201 ultrasonic rubber cutter working principle Fine concrete mortar pump Features Which? 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