Axis height adjustable gear box supporting structure

Abstract

The invention relates to an axis height adjustable gear box supporting structure which is characterized in that for a unit integrating a gear box and a multistage turbomachine, a position neighboring a split plane of the gear box is supported by a bracket; a sliding pin structure is arranged on the contact surface of the supported position; the bottom surface of a lower box body of the gear box is fit with a bottom plate of the bracket by a guide stand plate; and heat exchange pipelines and temperature sensors are arranged on the bracket. With the adoption of the axis height adjustable gear box supporting structure, the offset of the axis of each gear shaft in an operating process can be controlled conveniently; the heights of the axes are hardly changed with the change of the temperature of a box body; the influence of thermal expansion on the unit is reduced; the operating stability and energy conversion efficiency of the unit are improved; and the axis height adjustable gear box supporting structure is applicable to various gear box type turbomachine units.

Description

technical field [0001] The invention relates to a gear box in a speed change and power transmission system, in particular to a gear box support structure with an adjustable axis height. Background technique [0002] In recent years, units integrated with gearboxes and multi-stage impeller machinery have been widely used, with various structural types. Generally, at least one impeller machinery (including turbines, compressors, pumps, etc.), one gearbox, and one generator The gear box includes at least one split plane, and each stage of impeller machinery includes at least one drive shaft, and each drive shaft is arranged on the split plane through bearings. [0003] When the above-mentioned gearbox integrated with multi-stage impeller machinery is in operation, the interior of the gearbox is filled with oil mist with high temperature, which makes the box body expand in the direction of height with its bottom surface as the reference. For the gearbox, the height difference b...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the axial center deviation of the gearbox-type turbomachinery rotor is large due to thermal expansion, which affects the operation stability of the unit, the present invention proposes a gearbox support structure with adjustable axial center height, which is suitable for gearboxes In the unit integrated with multi-stage impeller machinery, it can solve the problem that the thermal expansion of the gear box rotor and the impeller machinery or generator rotor axis deviation greatly affects the operation stability of the unit, so that the rotors on both sides of the shaft system in the gearbox unit The centering condition is better, the stability and energy conversion efficiency of the unit are improved, and it has broad application prospects

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