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Star wheel shaft flexible bearing block of single-screw compressor

A single-screw compressor and flexible bearing technology, applied in the field of compressor star wheel shaft, can solve the problem of compressor star wheel shaft vibration greatly affecting life, and achieve the effects of reducing vibration, prolonging service life, and improving service time

Pending Publication Date: 2020-07-24
HAOMI POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a flexible bearing seat for the star wheel shaft of a single-screw compressor, which solves the problem that the vibration of the star wheel shaft of the compressor affects the service life

Method used

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  • Star wheel shaft flexible bearing block of single-screw compressor
  • Star wheel shaft flexible bearing block of single-screw compressor
  • Star wheel shaft flexible bearing block of single-screw compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] 1. Design Basis

[0036] The parameters of the single screw compressor are shown in Table 1. In the actual operation process, the rotation speed of the star wheel is 1636.4r / min. When exhausting, the maximum bending moment is 220Nm, and the exhaust frequency is 300Hz. The material of the flexible ring is polyurethane rubber, the Shore hardness is 80A, and the thickness of the flexible ring is 5mm.

[0037] Table 1 Parameters of a single screw compressor

[0038] Air intake (m3 / min) 20 Exhaust pressure (bar) 8 Screw star gear ratio 6:11 Star wheel speed(r / min) 1636.4 The maximum bending moment of star wheel parts (Nm) 220 Exhaust Frequency(Hz) 300

[0039] 2. Analysis and calculation

[0040] The star wheel shaft is modeled with beam188 beam element, the star wheel frame and bearings are modeled with mass21, and the moment of inertia of the star wheel frame is considered at the same time. The flexible ring is modeled with co...

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Abstract

The invention discloses a star wheel shaft flexible bearing block of a single-screw compressor. The star wheel shaft flexible bearing block comprises a star wheel shaft. A star wheel carrier is arranged in the middle of the star wheel shaft. A fixed end and a sliding end are arranged at the two ends of the star wheel shaft respectively. The fixed end comprises a fixed end bearing in key joint withthe star wheel shaft. The fixed end bearing is sleeved with a fixed end flexible ring. The fixed end flexible ring is sleeved with a fixed end bearing block. The sliding end comprises a sliding end bearing in key joint with the star wheel shaft. The sliding end bearing is sleeved with a sliding end flexible ring. The sliding end flexible ring is sleeved with a sliding end bearing block. Accordingto the star wheel shaft flexible bearing block of the single-screw compressor, transmission of vibratory force is stopped, the vibration caused by gas force is greatly reduced, the service life of the bearings is prolonged, and then the service life of the compressor is prolonged.

Description

technical field [0001] The invention relates to the technical field of compressor star wheel shafts, in particular to a flexible bearing seat for a single screw compressor star wheel shaft. Background technique [0002] The single-screw compressor is equipped with a screw with tooth grooves on the screw, and a star wheel is installed on the star wheel frame. The star wheel is located in the tooth groove. The casing, the star wheel and the screw groove form a closed space. The screw During the rotation process, the star wheel components are driven to rotate, and the star wheel pieces on the star wheel frame will squeeze the gas, and after reaching the exhaust pressure, it will be discharged out of the exhaust chamber of the casing. The gas force acts on the star wheel and is transmitted to the star wheel shaft. The star wheel of the single-screw compressor is alternately affected by the gas force to cause the star wheel shaft to vibrate, which may shorten the life of the bear...

Claims

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Application Information

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IPC IPC(8): F16C27/06F04C29/00F04C18/08F04C18/107
CPCF04C18/082F04C18/107F04C29/00F04C2240/50F16C27/06F16C2208/12F16C2226/10F16C2360/43
Inventor 原和平乔猛周中华陈贞毅
Owner HAOMI POWER EQUIP CO LTD