Oiling pressing sleeve structure of single screw compressor rotor main shaft and method thereof
A compressor rotor and single-screw technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as poor reliability, high energy consumption, and difficulty in assembling the rotor and the main shaft
Inactive Publication Date: 2012-07-04
MCQUAY AIR CONDITIONING & REFRIGERATION SUZHOU
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[0005] The purpose of the present invention is to provide a single-screw compressor rotor main shaft oil injection pressure sleeve structure and method to solve the problems of difficult assembly of the rotor and the main shaft, high energy consumption and poor reliability existing in the existing high-load structure
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[0021] Example: see attached figure 1 , 2 , 4, a single-screw compressor rotor main shaft oil injection pressure sleeve structure, including rotor 1 and main shaft 2, wherein, such as figure 1 As shown, the rotor 1 is provided with a main shaft assembly hole 3 in the axial direction, such as figure 2 As shown, a section of the main shaft 2 is used as an assembly section 4, and the assembly section 4 is nested with the main shaft assembly hole 3; wherein, the assembly section 4 of the main shaft 2 is provided with a first ring around its circumference Groove 5, a second annular groove 6 is provided around the circumference on the hole wall of the main shaft assembly hole 3, and the first annular groove 5 is opposite to the second annular groove 6, so that the main shaft assembly section 4 An oil injection cavity 7 is formed between the rotor 1; and the main shaft 2 is provided with an oil injection channel 8 communicating with the oil injection cavity 7, the oil injection ch...
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The invention relates to an oiling pressing sleeve structure of a single screw compressor rotor main shaft and a method thereof. The oiling pressing sleeve structure comprises a rotor and a main shaft, wherein the axial direction of the rotor is provided with a main shaft pilot hole, one segment of the main shaft serves as an assembling segment, and the assembling segment is mutually nested with the main shaft pilot hole; the oiling pressing sleeve structure is characterized in that the assembling segment of the main shaft is provided with a first annular groove along the circumference of the main shaft, and a hole wall of the main shaft pilot hole is provided with a second annular groove along the circumference of the main shaft; the first annular groove is opposite to the second annular groove and an oiling cavity is formed between the assembling segment of the main shaft and the rotor, and the main shaft is communicated with an oiling channel of the oiling cavity; and the main shaft pilot hole passes through the oiling cavity to oil, the main shaft pilot hole is expanded under the action of oil pressure, thereby assisting the main shaft pilot hole of the rotor in finishing installing and positioning with the assembling segment of the main shaft. The oiling pressing sleeve structure and the method provided by the invention solve the problem that the assembly difficulty of the rotor of the existing single screw compressor and the main shaft is large, the energy consumption is high and the reliability is poor.
Description
technical field [0001] The invention relates to an oil injection pressure sleeve structure and method for a rotor and a main shaft of a single-screw compressor. Background technique [0002] For single-screw compressors, the rotor as the core working part is a driven part and needs to be driven by a motor, so the cooperation between the rotor and the motor shaft is extremely important here. [0003] At present, most manufacturers adopt mechanical press-fit, shrink-fit or key fit to assemble the rotor and the motor shaft. Among them, the mechanical press-in method refers to forcibly pressing the contained part (shaft) into the containing part (rotor) by using external force (such as a press, etc.), which is suitable for occasions with small or medium interference and small transmission load. However, some high-load designs can only be used in the form of shrink fit or key fit. Shrink fit and key fit are two relatively mature assembly processes that have been widely used. Th...
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IPC IPC(8): F04C29/00
Inventor 陈清沈鹏飞范士则
Owner MCQUAY AIR CONDITIONING & REFRIGERATION SUZHOU