Novel roller bracket for steam turbine rotor

A steam turbine rotor and roller support technology, which is applied in the direction of workbench, manufacturing tools, etc., can solve the problems of rotor damage, stress concentration, non-conformity of contact line between nylon roller and rotor journal, etc., and achieve the effect of eliminating stress concentration

Active Publication Date: 2016-05-18
SHANGHAI HAIYE ELECTROMECHANICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after using the roller bracket, another problem occurred: the contact line between the outer peripheral surface of the nylon roller and the outer peripheral surface of the rotor journal cannot be well matched, that is, the nylon roller and the rotor journal change from line contact to point contact, resulting in serious problems. The stress concentration of the nylon roller will not only damage the nylon roller, but also very likely to fluff the rotor journal.
[0005] Further, as figure 1 As shown, no matter how thick the rotor is, it also has deflection, so the middle part of the rotor sinks. The two roller brackets placed at the rotor journals at the front and rear ends of the rotor are placed evenly, and the contact line between the nylon roller and the roto

Method used

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Examples

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Example Embodiment

[0060] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0061] It should be noted that the structure, ratio, size, etc. shown in the accompanying drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention Limited conditions, so it has no technical significance. Any structural modification, proportional relationship change or size adjustment should still fall under the present invention without affecting the effects and objectives that can be achieved by the present invention. The disclosed technical content must be within the scope of coverage. At the same time, the terms such as "upper", "lower", "left", "right

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PUM

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Abstract

The invention provides a novel roller bracket for a steam turbine rotor. The novel roller bracket comprises a base, a roller bracket body located above the base, and two supporting rollers arranged in a left-right symmetry mode. The two supporting rollers are both mounted in the roller bracket body in a rotatable mode. After the rotor is placed on the novel roller bracket for the steam turbine rotor, the two supporting rollers are located on the left side and the right side of a rotor journal respectively, and the outer circumferential faces of the supporting rollers make contact with the outer circumferential face of the rotor journal. The supporting rollers can rotate along the vertical radial line of the rotor journal, and swing front and back along the transverse radial line of the rotor journal. After the rotor is placed on two novel roller brackets, oppositely arranged front and back, for the steam turbine rotor, the supporting rollers can rotate and swing front and back automatically through pressure of the rotor on the supporting rollers, so that the outer circumferential faces of the supporting rollers are always in line contact with the outer circumferential face of the rotor journal, point contact between the supporting rollers and the rotor journal is avoided, and therefore the phenomenon of stress concentration is avoided, and burring of the outer circumferential face of the rotor journal and damage to the rotor are prevented.

Description

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Claims

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Application Information

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Owner SHANGHAI HAIYE ELECTROMECHANICAL EQUIP CO LTD
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