[Mechanical Equipment Technology Edition] Daily Question 20171009: Assembly of Screw-Type Refrigerant Compressors
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This post was last edited by YORK Industrial Refrigeration on 2017-10-12 at 09:09. Starting today, in order to enhance communication among users, we have launched the \"One Question per Day\" activity on the Mechanical Equipment Technology forum. We hope everyone will participate actively to progress and improve together! ! ! Rewards: 3 wealth points for active participation, 10-15 wealth points for correct answers. This question is valid for two days; no scoring will be given after that period. Explain in simple terms what the meshing clearance, the exhaust side clearance, and the intake side clearance are. The meshing clearance refers to the gap between the gears that come into contact with each other when two or more gears, or male and female rotors, are in normal operation (or the profile gap that exists when the male and female rotors engage with each other) ； The exhaust side clearance refers to the gap between the gear or rotor on the exhaust side and the end cover ； The clearance at the suction side refers to the gap between the gear or rotor on the suction side and the end cover on the same side. Under normal circumstances, the gap on the intake side should be larger than that on the exhaust side. ================================ High-quality promotions: Mechanical equipment---Maintenance procedures for York screw compressors http://bbs.hcbbs.com/thread-1806833-1-1.html Mechanical equipment---Upgrading of York Quinton control centers http://bbs.hcbbs.com/thread-1804837-1-1.html Mechanical equipment---Major repairs for GEA Grasso screw compressors http://bbs.hcbbs.com/thread-1800467-1-1.html Mechanical equipment---Disassembly and maintenance of British HOWDEN screw compressors http://bbs.hcbbs.com/thread-1832529-1-1.html Mechanical equipment---Disassembly and maintenance of Japanese Maekawa MYCOM screw compressors http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1786445
The meshing clearance of gears does not affect the meshing accuracy. However, if the gap is too large, the tooth thickness of the gear will inevitably be reduced, affecting its strength. Especially in gear transmission systems that require forward and reverse rotation, there is significant shock during gear shifting, which can easily lead to failures such as tooth breakage.
The meshing clearance refers to the gap between the gears that come into contact with each other when two or more gears, or male and female rotors, are in normal operation (or the profile gap that exists when the male and female rotors engage with each other)； The exhaust side clearance refers to the gap between the gear or rotor on the exhaust side and the end cover ； The clearance at the suction side refers to the gap between the gear or rotor on the suction side and the end cover on the same side. Under normal circumstances, the gap on the intake side should be larger than that on the exhaust side.
The meshing clearance is the gap that exists when gears are in contact
During gear meshing, in order to create a lubricating oil film between the meshing tooth profiles and prevent jamming due to heating and expansion caused by tooth friction, a gap must be left between these tooth profiles; this gap is known as the side clearance； The clearance at the exhaust side is actually the valve clearance, which is provided to ensure the proper operation of the engine’s valve train ； The suction side clearance is the gap between the rotor and the suction side cover.
During gear meshing, in order to create a lubricating oil film between the meshing tooth profiles and prevent jamming due to heating and expansion caused by tooth friction, a gap must be left between these tooth profiles; this gap is known as the side clearance； The clearance at the exhaust side is actually the valve clearance, which is provided to ensure the proper operation of the engine’s valve train ； The suction side clearance is the gap between the rotor and the suction side cover
Side clearance: During gear meshing, in order to create a lubricating film between the meshing tooth profiles and prevent jamming due to heat and expansion caused by tooth friction, it is necessary to leave a gap between these tooth profiles. This gap is known as side clearance, or simply clearance. The gap between the discharge end of the screw compressor rotor and the discharge end cover is called the discharge end clearance. The gap between the suction end of the screw compressor rotor and the suction end seat is called the suction end clearance.
Side clearance: During gear meshing, in order to create a lubricating film between the meshing tooth profiles and prevent jamming due to heat and expansion caused by tooth friction, it is necessary to leave a gap between these tooth profiles. This gap is known as side clearance, or simply clearance. The gap between the discharge end of the screw compressor rotor and the discharge end cover is called the discharge end clearance. The gap between the suction end of the screw compressor rotor and the suction end seat is called the suction end clearance.
Side clearance: During gear meshing, in order to create a lubricating film between the meshing tooth profiles and prevent jamming due to heat and expansion caused by tooth friction, it is necessary to leave a gap between these tooth profiles. This gap is known as side clearance, or simply clearance. The gap between the discharge end of the screw compressor rotor and the discharge end cover is called the discharge end clearance. The gap between the suction end of the screw compressor rotor and the suction end seat is called the suction end clearance.
Side clearance: During gear meshing, in order to create a lubricating film between the meshing tooth profiles and prevent jamming due to heat and expansion caused by tooth friction, it is necessary to leave a gap between these tooth profiles. This gap is known as side clearance, or simply clearance. The gap between the discharge end of the screw compressor rotor and the discharge end cover is called the discharge end clearance. The gap between the suction end of the screw compressor rotor and the suction end seat is called the suction end clearance.