JP-2026075835-A - Inspection equipment and inspection method

JP2026075835AJP 2026075835 AJP2026075835 AJP 2026075835AJP-2026075835-A

Abstract

[Problem] This disclosure describes an inspection device and inspection method capable of inspecting the damage condition of the roller shaft of a support roller. [Solution] The inspection device comprises a first measuring unit configured to measure radial displacement at a predetermined first position on the circumferential surface of the support roller supporting the cylindrical body of a horizontally mounted cylindrical rotating device or on the circumferential surface of the roller shaft of the support roller; a second measuring unit configured to measure radial displacement at a predetermined second position on the circumferential surface of the support roller or on the circumferential surface of the roller shaft; and a control unit. The control unit is configured to perform a first process of calculating difference data, which is the difference between first time-series data of radial displacement measured by the first measuring unit and second time-series data of radial displacement measured by the second measuring unit, and a second process of determining the damage state of the roller shaft based on the difference data. [Selection Diagram] Figure 3

Inventors

折出拓
友光洋介
岡部翔
茅島匡

Assignees

ＵＢＥマシナリー株式会社

Dates

Publication Date: 20260511
Application Date: 20241023

Claims (6)

A first measuring unit configured to measure radial displacement at a predetermined first position on the circumferential surface of the support roller supporting the cylindrical body of a horizontally mounted cylindrical rotating device or on the circumferential surface of the roller shaft of the support roller, A second measuring unit configured to measure radial displacement at a predetermined second position on the circumferential surface of the support roller or the circumferential surface of the roller shaft, It includes a control unit, The control unit, A first process for calculating difference data, which is the difference between first time-series data of radial displacement measured by the first measuring unit and second time-series data of radial displacement measured by the second measuring unit, An inspection device configured to perform a second process of determining the damage state of the roller shaft based on the differential data.
The first position is the central part of the circumferential surface of the support roller in the axial direction of the roller shaft, The apparatus according to claim 1, wherein the second position is one end of the circumferential surface of the support roller in the axial direction.
The support roller further comprises a third measuring unit configured to measure the radial displacement of the other end of the circumferential surface of the support roller in the axial direction, The control unit is configured to further perform a third process that calculates another difference data, which is the difference between the first time-series data of radial displacement measured by the first measuring unit and the third time-series data of radial displacement measured by the third measuring unit. The apparatus according to claim 2, wherein the second process includes determining the damage state of the roller shaft based on the differential data and the other differential data.
The first position is the central part of the circumferential surface of the support roller in the axial direction of the roller shaft, The apparatus according to claim 1, wherein the second position is the portion of the circumferential surface of the roller shaft that is on one end side in the axial direction.
The roller shaft further comprises a third measuring unit configured to measure the radial displacement of the portion of the circumferential surface of the roller shaft that is on the other end side in the axial direction, The control unit is configured to further perform a third process that calculates another difference data, which is the difference between the first time-series data of radial displacement measured by the first measuring unit and the third time-series data of radial displacement measured by the third measuring unit. The apparatus according to claim 4, wherein the second process includes determining the damage state of the roller shaft based on the differential data and the other differential data.
A first step of measuring the radial displacement at a predetermined first position on the circumferential surface of the support roller that supports the cylindrical body of the horizontally mounted cylindrical rotating device or on the circumferential surface of the roller shaft of the support roller, A second step of measuring the radial displacement at a predetermined second position on the circumferential surface of the support roller or the circumferential surface of the roller shaft, A third step involves calculating difference data, which is the difference between the first time-series data of radial displacement measured in the first step and the second time-series data of radial displacement measured in the second step. An inspection method comprising a fourth step of determining the damage state of the roller shaft based on the difference data.

Description

This disclosure relates to an inspection device and an inspection method. Patent Document 1 discloses an adjustment device for adjusting the position of support rollers that support the kiln body of a rotary kiln. This adjustment device comprises a first detection unit for detecting the extrusion force received by the bearings of the support rollers, a second detection unit for detecting the thrust force received by the bearings, an intermediate bed on which the bearings are mounted, a cylinder for pressing and supporting the intermediate bed, and a control device. The control device is configured to control the amount of pressure applied by the cylinder based on signals detected by the first and second detection units. Japanese Patent Application Publication No. 7-218141 Figure 1 is a schematic diagram showing a horizontal cylindrical rotating device, which is an example of an object to be inspected by the inspection device, viewed from the side.Figure 2 is a cross-sectional view taken along line II-II in Figure 1.Figure 3 is a schematic diagram showing the tires and support rollers of the horizontal cylindrical rotating device shown in Figure 1, and an example of the inspection device, viewed from the side.Figure 4 is a graph showing an example of the time-series data of radial displacement at the central part of the circumferential surface of the support roller, the time-series data of radial displacement at one end of the circumferential surface of the support roller, and the difference data between these time-series data for one rotation of the tire of the horizontally mounted cylindrical rotating device shown in Figure 1.Figure 5 is a graph showing an example of the time-series data of radial displacement at the central part of the support roller's circumferential surface, the time-series data of radial displacement at the other end of the support roller's circumferential surface, and the difference between these time-series data for one rotation of the tire of the horizontally mounted cylindrical rotating device shown in Figure 1.Figure 6 is a schematic diagram showing the tires and support rollers of the horizontal cylindrical rotating device shown in Figure 1, and another example of the inspection device, viewed from the side.Figure 7 is a schematic diagram showing the tires and support rollers of the horizontal cylindrical rotating device shown in Figure 1, and another example of the inspection device viewed from the side.Figure 8 is a schematic diagram showing the tires and support rollers of the horizontal cylindrical rotating device shown in Figure 1, and another example of the inspection device, viewed from the side. In the following description, the same reference numeral will be used for elements that are identical or have the same function, and redundant explanations will be omitted. In this specification, when referring to the top, bottom, right, and left of a figure, the direction of the reference numeral in the figure is used as the reference. Some drawings show a Cartesian coordinate system defined by the X, Y, and Z axes. In this specification, the X axis is the axis extending in the longitudinal direction of the cylindrical body 10 (described later), the Y axis is the axis perpendicular to the X axis and extending horizontally, and the Z axis is the axis extending in a direction perpendicular to both the X and Y axes. [Configuration of the horizontally mounted cylindrical rotating device] First, the configuration of the horizontal cylindrical rotating device 1 will be described with reference to Figures 1 to 3. The horizontal cylindrical rotating device 1 is configured to heat-treat a material (for example, firing, drying, cooling, etc.) by rotating a cylindrical body 10 and passing the material through the inside of the cylindrical body 10. The horizontal cylindrical rotating device 1 may be, for example, a rotary kiln, rotary dryer, rotary cooler, etc. The horizontal cylindrical rotating device 1 comprises a cylindrical body 10, a girth gear 20, a plurality of tires 30, a drive unit 40, and a plurality of support units 50. The cylindrical body 10 is a long object with a roughly cylindrical shape. The diameter of the cylindrical body 10 may be, for example, several meters. The total length of the cylindrical body 10 may be, for example, 60 to 100 meters. The cylindrical body 10, as illustrated in Figure 2, includes an outer shell 10a and a refractory material 10b. The outer shell 10a has a substantially cylindrical shape and may be made of a steel material such as carbon steel. The refractory material 10b is arranged entirely on the inner circumferential surface of the outer shell 10a and may be made of refractory bricks, for example. Therefore, the material passing through the cylindrical body 10 is heat-treated in the internal space of the refractory material 10b. As illustrated in Figure 1, the opening at one end of the cylindrical body 10 into which the material is introduced bec