JP3726828B2 - Deterioration inspection method and inspection device for bearings such as trolley rollers - Google Patents

Description

  The present invention relates to a method for inspecting rattling caused by wear or damage of the bearing portions of a pair of left and right traveling rollers supported by a main body portion such as a carrier via a rolling bearing portion, and an inspection apparatus thereof. Is a roller composed of a slope that deflects the left and right of the free trolley of the power and free trolley type conveying device or the carrier of the friction roller drive type conveying device formed on the roller contact surface of the traveling rail in the middle of the conveying line or its branch line The present invention relates to a technique for causing the roller to be inclined by passing through a deflecting portion and inspecting the degree of backlash of the bearing portion by the degree of the inclination.

  In a production line of an automobile or the like, a power and free trolley type conveying device, a friction roller driving type conveying device or the like is used for conveying an object to be conveyed. In the trolley part or the trolley apparatus before and after the carrier of these transport apparatuses, a pair of left and right traveling rollers supported via rolling bearing parts at both ends of a horizontal support shaft orthogonal to the traveling direction supported by the main body part. I have. In some cases, this roller may adopt a structure in which a running roller is rotatably mounted on a support shaft via a commercially available ball or roller bearing, but apart from this, the roller itself has a structure of a rolling bearing, A substantially cylindrical inner ring fixedly attached to the end of the support shaft, a number of ball rows or roller rows engaged with an annular groove formed in the outer peripheral portion of the inner ring, and the ball row or A substantially cylindrical outer ring formed with an annular groove to be engaged with the roller row, and the outer ring is fitted to the inner ring via the ball row or the roller row to form a bearing portion and the outer circumference of the outer ring There is a case where a roller having a structure in which is used as a roller rolling surface is used.

  By the way, the roller of the trolley portion of the carrier may be worn out by the rolling bearing portion due to long-term use, and if left untreated, it may cause a wheel loss or a fall accident. Therefore, the bearings are regularly inspected and replaced as necessary. The replacement time of the roller bearing is usually about 5 years. However, in a transport device that passes through the painting work line, cleaning water or chemicals enter the bearing when passing through the shower booth. The part may wear out in a short period of 2 to 3 years. In order to avoid unexpected accidents, the rollers are regularly inspected. To do this inspection, the carrier is removed from the rail and moved to the inspection area, and the roller is left floating or the rollers are removed. is necessary. Therefore, it is also necessary to temporarily stop the production line of the factory when inspecting the carrier and the trolley, which causes a problem that the production efficiency is lowered.

  In view of the above situation, the problem to be solved by the present invention is that a moving body such as a carrier or a trolley of a transfer device is placed on a traveling rail without stopping a production line and requiring a large inspection area. To provide an inspection method capable of easily or quickly inspecting or monitoring deterioration of the bearing portion of the traveling roller of the moving body, that is, rattling, and performing the inspection To provide an apparatus.

  The trolley or the trolley portion before and after the carrier to which the present invention solves the above-mentioned problems is the both ends of the support shaft supported by the main body of the moving body horizontally in the left-right direction perpendicular to the traveling direction of the moving body. A trolley having at least one pair of left and right traveling rollers rotatably mounted via a rolling bearing or a bearing portion having a structure equivalent thereto, or such a trolley portion provided at the front and rear end portions. Is the trolley part of a career. The trolley or trolley portion is intended for a trolley or trolley portion that travels on the rail with the left and right rollers supported by a pair of rails installed in parallel on the left and right. In this specification, this trolley or trolley part is described as “trolley”, and the traveling roller is described as “trolley roller” or “roller”.

  In order for the present invention to solve the above-mentioned problems, when the trolley passes through the rails in the middle of the rails in the conveyance path on which the trolley travels or in the branch paths that branch from the conveyance path, Roller deflection parts consisting of one or more deflection ramps for tilting the front end of the roller in the horizontal direction with respect to the traveling direction and / or inward and outward directions of the opposing rail with respect to the vertical direction are symmetrical between the left and right rails. It is formed on the roller contact surface of the rail with which the outer periphery of the roller contacts so as to form a shape. Then, the inclination of the trolley roller generated when the trolley passes through the roller deflection unit is irradiated with light from an oblique direction to the outer surface of the roller, and deflected back and forth in the rotation direction of the roller according to the inclination of the roller. Observing the inclination of the band-shaped irradiation line that is brightly illuminated by the band light that appears as a result of visual observation from the outer surface direction of the roller, measurement with an appropriate measuring tool such as a scale, photography, etc. By monitoring or measuring, the degree of wear deterioration (rattle) of the rolling bearing portion of the roller is inspected.

  Regarding the trolley roller bearing portion deterioration inspection device, first, the roller deflection portions are formed on the left and right rails. In the vicinity of the roller deflection unit, the outer surface of the roller of the trolley passing through the roller deflection unit is irradiated with light from an oblique direction, and deflected back and forth in the rotation direction of the roller according to the inclination of the roller. Observation means for observing or monitoring the inclination of the irradiation line of the emitted band light from the lateral direction of the roller is provided, and display means for displaying the result observed by the observation means is provided. As the observation means, irradiate a horizontal band light passing through the center of the roller from either the upper or lower diagonal direction toward the left and right outer surfaces of the rollers of the trolley passing through the roller deflection unit, or either before or after One of the left and right projectors that irradiates the vertical band light passing through the center of the roller from an oblique direction, and the horizontal line that passes through the center of the roller side surface according to the inclination of the roller when the band light irradiated by the projector reaches the roller side surface Alternatively, it is configured to include left and right video cameras for photographing the inclination of the bright shining irradiation line appearing by deflecting back and forth in the roller rotation direction with respect to the vertical line from the roller side surface. Further, as the observation result display means, an image composition means for compositing a plurality of roller images photographed by the left and right video cameras for displaying on one screen, and a composite image synthesized by the image composition means. It is convenient to provide a monitor for displaying.

  On the other hand, it is more convenient to provide a machine number photographing video camera for attaching an individual identification symbol such as a machine number to the main body of the trolley and photographing the identification symbol. In this case, as the observation result display means, the respective roller images photographed by the left and right video cameras and the machine number images photographed by the machine number photography video camera are combined to be displayed on one screen. The image synthesizing unit configured to display the synthesized image synthesized by the image synthesizing unit.

In each of the above-described solutions, the roller deflecting portions formed on the rail are inclined inward of the opposing rail with respect to the reference roller contact surface, and are deflected inward of the opposing rail toward the trolley traveling direction. Inwardly flat V-shaped recesses that incline inward of the opposing rail with a downward slope and an upward slope that deflects outward of the opposing rail toward the trolley traveling direction, and roller contact surfaces that each serve as a reference The down slope inclined outward of the opposing rail toward the trolley traveling direction and the upward slope deflected inside the opposing rail toward the trolley traveling direction are connected to each other in the front-rear direction. The outward flat V-shaped recesses that incline outwardly of the rails are adjacent to each other in the front-rear direction so that the ridgelines of the adjacent slopes are connected in a zigzag manner. Rail is advantageous to configure provided at least one each on the roller contact surface of the rail so as to be symmetrical to each other.
Or you may make a roller deflection | deviation part into the shape opposite to this. That is,
An ascending slope that inclines outward of the opposing rail with respect to the reference roller contact surface and deflects inward of the opposing rail toward the trolley traveling direction and a descending slope that deflects outward of the opposing rail in the trolley traveling direction And an outward flat mountain-shaped convex portion that is inclined forward and backward with respect to the opposing rail, and each of them is inclined inward of the opposing rail with respect to the reference roller contact surface and facing the trolley traveling direction. An inwardly flat mountain-shaped convex part that inclines inward of the opposing rail by connecting an ascending slope that deflects to the outside and a descending slope that deflects to the inside of the opposing rail in the direction of travel of the trolley. At least one location on the roller contact surface of the rail so that the right and left rails are symmetrical with each other so that the valleys of the adjacent slopes are connected in a zigzag manner. Only and may be configured. In any of the above cases, when the trolley takes the form of a four-roller configuration having left and right roller pairs on the front and rear of the main body, the total length of the roller deflection unit is determined by the distance between the front and rear of the roller pairs. If it is formed over a long section, it is possible to simultaneously measure the backlash of the bearing portions of the front and rear rollers.

  In the method for inspecting deterioration of the bearing portion of the trolley roller according to the first aspect of the present invention, the roller deflection portion in which the rollers are inclined to the inner and outer directions of the opposite traveling rail with respect to the vertical direction on the left and right traveling rails of the trolley, A roller deflecting portion that is tilted by deflecting the roller to the left and right with respect to the traveling direction is formed symmetrically, and the trolley is passed along this deflecting portion, and the tilt of the roller generated at that time is observed by irradiation of band light or Measure. In other words, if the roller bearing portion is rattled, the roller tilts, and the magnitude of the roller tilt varies depending on the shakiness. When the side light of the inclined roller is irradiated with a band light that crosses the center of the roller from an oblique direction, the arrival point of the band light is deflected back and forth in the rotation direction of the roller. Therefore, the magnitude of the inclination of the roller appears as the magnitude of the deflection of the belt-like irradiation line that shines brightly with the light beam in the forward and backward direction of the roller. This can be observed directly from the side of the roller or photographed with a video camera. In addition to observing on a monitor screen, it can be measured using an appropriate measuring tool such as a scale, or can be measured by a method such as photography. That is, this measurement method can monitor or inspect the degree of deterioration (rattle) due to wear of the bearing portion in a short time and simply by passing the roller deflection portion while the trolley is still installed on the traveling rail. It has the following features.

  According to the second aspect of the present invention, the trolley roller bearing portion deterioration inspection device forms the roller deflection portion described above along the surface of the running rail with which the outer periphery of the trolley roller contacts, while the roller of the trolley passing through the roller deflection portion. Left and right projectors that irradiate light beams crossing the roller center with respect to the side surface from an oblique direction, and the light beams emitted by the projectors are deflected back and forth in the roller rotation direction with respect to a horizontal or vertical line passing through the roller center on the roller side surface. The observation means for observing or monitoring the tilt of the bright and shining belt-like radiation that appears or viewed from the side of the roller and the display means for displaying the observation results of the observation means are provided, so the trolley remains installed on the running rail. Thus, the degree of deterioration (rattle) due to wear of the bearing can be easily inspected in a non-contact manner simply by passing the roller deflection portion. The roller deflection unit can be provided not only on the traveling rail of the transportation line but also on the traveling rail of a branch path that branches off from the transportation line, and is measured at a convenient place according to the layout of the transportation line. And can be observed and measured as needed without pausing the factory production line.

  According to the third aspect, as the observation means, a horizontal light beam passing through the central portion of the roller is irradiated from one of the upper and lower oblique directions toward the left and right outer surfaces of the roller of the trolley that passes through the roller deflection unit, or The projector includes a projector that irradiates vertical light passing through the center of the roller from any one of the front and rear directions, and a left and right video camera that captures the side surface of the roller. The image synthesizing unit for synthesizing the plurality of roller images photographed by the video camera to display on one screen, and a monitor for displaying the synthesized image synthesized by the image synthesizing unit. With this configuration, it is possible to most effectively observe and measure either the tilt of the roller in the left-right direction with respect to the moving direction of the roller or the tilt of the roller in the inner or outer direction of the left-right facing rail with respect to the vertical direction. Furthermore, since the observation means and the display means are configured by combining the video camera, the image composition means and the monitor, the inclination of the roller is monitored or observed in a remote monitoring room far away, and the composition is output to the monitor. It is also possible to record an image with a recording means. And when playing back the recorded image, it is possible to pause the playback and measure the inclination of the roller as a still image on the screen, and further to edit such as cutting unnecessary parts etc. Is obtained.

  According to the fourth aspect of the present invention, the trolley body is provided with a machine number photographing video camera for attaching an individual identification symbol such as a machine number and photographing the identification symbol, and the observation result display means includes the left and right video cameras described above. The image synthesizing means for synthesizing the left and right roller images taken with the machine number photographing video camera to display them on one screen, and the synthesized image synthesized by the image synthesizing means. The monitor screen is displayed as a composite image in which the roller image and the machine number image are incorporated at the same time on the monitor screen, and can be monitored or observed in a remote monitoring room far away. When recording with a recording means and reproducing and inspecting later, there is an effect that it is convenient for identifying a trolley to be repaired.

  According to the fifth aspect of the present invention, each of the roller deflection portions includes an inwardly flat V-shaped concave portion inclined inward of the opposing rail and an outwardly flat V-shaped concave portion inclined outward of the opposing rail. At least one location is provided on the roller contact surface of the rail so that the left and right rails are symmetrical with each other so that the ridge lines of the adjacent slopes are connected in a zigzag manner. On the other hand, according to the sixth aspect, the roller deflection portion includes an outward flat mountain-shaped convex portion inclined outward of the opposing rail and an inward flat mountain-shaped convex portion inclined inward of the opposing rail, respectively. At least one location on the roller contact surface of the rail so that the left and right rails are symmetrical with each other so that the valleys of the adjacent slopes are connected in a zigzag manner. When the trolley passes through the part where such a roller deflection part is formed in the middle of the running rail, the roller is in the zigzag ridge line in the former case, and the zigzag valley line in the latter case, respectively. An action of deflecting in a direction along a line orthogonal to these lines is received. In addition to the action, the roller side face is also inclined to the inside and outside of the opposing rail with respect to the vertical so as to follow the slope inclined inward and outward with respect to the roller contact surface serving as the reference of the opposing rail. When the bearing portion of the trolley roller has a backlash, the left and right rollers are subjected to an inclination such that the left and right rollers are opposed to each other in the lateral direction, that is, the front end side of the roller is directed inward or outward relative to the opposing rail. At the same time, the left and right rollers are inclined such that the left and right opposite directions with respect to the vertical direction, that is, the top portions of the rollers are inclined inward or outward with respect to the opposing rail. Moreover, since the inclined surfaces of the trolley deflecting portions of the left and right traveling rails are symmetrical with each other in any of the above cases, the left and right forces acting on the trolley cancel each other, and the trolley moves straight along the center line of the left and right rails. . That is, the roller inclined portion advances the trolley straight, and the left and right rollers simultaneously generate a left-right inclination with respect to the forward direction and a left-right tilt with respect to the vertical direction according to the backlash of the bearing portion. While having the function, it is possible to obtain an effect that it is simple and easy to process and form at low cost. When the trolley is a trolley provided with left and right roller pairs on the front and rear sides of the main body, the entire length of the roller deflection unit extends over a section longer than the front-rear distance between the roller pairs. There is an effect that the backlash of the bearing portion can be observed and measured at a time.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below and the embodiments of the accompanying drawings, and includes the requirements described in the claims. Includes everything. FIG. 1 shows an example of a trolley device to which the present invention is applied, and FIG. 2 shows a side view of the trolley device of FIG. 3 schematically shows the relationship between the roller deflection portion formed on the rail and the trolley roller in the roller deflection portion as viewed from above, FIG. 4 shows the shape of the roller deflection portion, (a) is a plane, (B) has each shown the side surface seen from the inner side of a rail. FIGS. 5A and 5B are perspective views of the roller deflecting portion as viewed obliquely from the inside of the rail. FIG. 5A shows the same first embodiment as FIGS. 3 and 4, and FIG. 5B shows the second embodiment. 6 is an enlarged partial view of FIG. 3 as viewed from the front and rear in the direction of travel of the trolley. FIG. 6A shows the front roller at the position of the A line from the front, and FIG. 6B shows the position of the B line. The state which looked at each back roller from back is shown. FIG. 7 schematically shows the configuration of the observation unit in the trolley roller bearing portion deterioration inspection apparatus according to the present invention. FIG. 8 shows the position of the projector shown in FIG. 7 with respect to the side surface of the trolley roller in the state shown in FIG. The inclination of the irradiation line of the light which appears on the roller side surface when irradiating horizontal belt light is shown. FIG. 9 is a diagram for explaining an example of a processing procedure for synthesizing images captured by the video cameras and displaying them on the monitor screen. FIG. 10 is an example of the overall configuration of the projector, video camera, and image display means. FIG.

  A trolley to which a bearing portion deterioration inspection method and a bearing portion deterioration inspection device for a trolley roller according to the present invention are applied is a transport device provided with a power and free trolley type conveyor or friction roller drive type carrier installed in a production line of an automobile, for example. Power trolley, free trolley, trolley provided before and after the carrier. As an example, FIGS. 1 and 2 of the accompanying drawings illustrate a trolley device including a trolley 2 provided before and after a carrier and traveling rails 8 and 8 that support the trolley 2 so that the trolley 2 can travel. As shown in the figure, the trolley 2 includes a pair of left and right rollers 5 and 5 that are rotatably supported on the left and right of the main body 3 of the trolley 2. The rollers 5 and 5 are shafts of the support shaft 4 supported in the horizontal direction perpendicular to the traveling direction on the trolley body 3 so that one of the four rollers of FIG. An annular inner ring that is fitted and fixed to the end, a ball row made up of a plurality of balls that are engaged with an annular groove formed in the outer peripheral portion of the inner ring and mounted at equal intervals in the circumferential direction, and the inner periphery of the cylindrical member An annular outer ring formed with an annular groove that engages with the outer periphery of the ball row, a retainer that holds the ball in the form of a ball row, and a flexible seal member that closes a gap between side surfaces of the inner ring and the outer ring And has a vertical flat portion on the outer surface. That is, the outer ring is rotatably mounted on the inner ring that is fitted and supported by the support shaft 4 via the ball row, and the ball row portion constitutes the rolling bearing portion 6. The outer periphery of the outer ring is formed in a taper shape at an angle substantially the same as an inclination angle of a rail surface 9 (reference roller contact surface), which will be described later, so as to be able to roll in contact with the rail surface 9 of the running rail 8. Yes. The structure of the roller is not limited to the above, and it is formed by an integral cylindrical member having an outer periphery similar to the outer periphery of the outer ring, and the inner diameter portion of this cylindrical member is a rolling bearing on the shaft end of the support shaft supported by the trolley body portion. It is good also as a structure fitted and fixed via.

  Next, left and right traveling rails (hereinafter also simply referred to as rails) 8 and 8 have cross sections orthogonal to the longitudinal direction, each having horizontal face portions 8a and 8a at the upper and lower ends of the vertical web portion 8b. The face portion 8a, 8a is formed with an inclined surface with a thin side end and a slightly thick side on the web portion 8b side, with the opening sides of the grooves facing each other. It is erected in parallel from side to side. The angle of the inclined surface of the face portion is formed so as to substantially coincide with the inclination angle of the outer peripheral tapered portion of the rollers 5 and 5 described above. Accordingly, the trolley 2 meanders along the inclined surfaces of the face portions 8a, 8a below the rails 8, 8 as reference roller contact surfaces (hereinafter also referred to as roller contact surfaces) 9, 9. It is possible to run without. The rails 8 and 8 are installed in parallel in the left-right direction over the entire length of the transport path, and are arranged at appropriate locations on the rails 8 and 8 in the middle of the transport path or branching from the transport path. Roller deflecting portions 10 or 20 formed by alternately connecting downhill and uphill slopes as shown in 5 (b), or uphill and downhill slopes in the rail longitudinal direction, are provided on the roller contact surfaces 9 and 9. Along the left and right sides.

  FIG. 5 (a) shows a first embodiment of the roller deflecting portion. The roller deflecting portion 10 is inclined inward of the opposing rails 8 and 8 with respect to the roller contact surface 9 serving as a reference, and the trolley advances. A downward slope 12 that deflects inward of the opposing rail toward the direction (left side in the figure) and an upward slope 13 that deflects outward of the opposing rail in the direction of travel of the trolley are connected to each other inward and inward of the opposing rail. Inclined inwardly flat V-shaped recesses 11, and downhill slopes 15 and trolleys that incline outward of the opposing rails with respect to the reference roller contact surface 9 and deflect outward of the opposing rails in the direction of trolley travel. An outwardly flat V-shaped concave portion 14 that is connected to the front and back of the ascending slope 16 that deflects inward of the opposing rail toward the traveling direction and that inclines outward of the opposing rail is adjacent to the front and rear. As the ridge line 17 of the adjacent slope leading to a zigzag, formed by providing over the appropriate length of a section to the roller contact surface 9 of the rail as the left and right rails 8, 8 is symmetrical to each other. That is, the right rail 8 roller deflection portion 10 and the left rail 8 roller deflection portion 10a are formed symmetrically with respect to the direction of travel of the trolley (the direction of the arrow in FIG. 3), thereby The inner and outer acting forces acting on the rollers 5 and 5 are offset, and the trolley 2 moves straight along the rails 8 and 8 without meandering. The entire length of the roller deflection portion is formed so as to extend over a section longer than the front-rear spacing of each roller pair provided before and after the trolley main body portion 3.

  On the other hand, FIG. 5 (b) shows a second embodiment of the roller deflecting portion. The roller roller deflecting portion 20 is inclined outwardly of the opposed rails 8 and 8 with respect to the roller contact surface 9 as a reference. In addition, the up-slope 22 that deflects inward of the facing rail toward the trolley traveling direction (left side in the figure) and the down-slope 23 that deflects out of the facing rail in the trolley traveling direction are connected to each other in the front-rear direction. And an upward slope 25 that inclines inward of the opposing rail with respect to the reference roller contact surface and deflects outward of the opposing rail in the direction of travel of the trolley. And an inwardly-facing mountain-shaped convex portion 24 that inclines inward of the opposing rail with a downward slope 26 that deflects inward of the opposing rail toward the trolley traveling direction. Is provided on the roller contact surface 9 of the rail over a section of an appropriate length so that the right and left rails 8 and 8 are symmetrical with each other so that the valley line 27 of the adjacent slope is connected in a zigzag manner. It becomes. Similar to the first embodiment described above, the right rail 8 roller deflection unit 20 and the left rail 8 roller deflection unit (not shown) are symmetrical with respect to the direction of travel of the trolley (the direction of the arrow in FIG. 3). Thus, the acting force in the inner and outer directions acting on the left and right rollers 5 and 5 of the trolley 2 is offset, and the trolley 2 moves straight along the rails 8 and 8 without meandering. The entire length of the roller deflection portion is formed so as to extend over a section longer than the front-rear spacing of each roller pair provided before and after the trolley main body portion 3.

  Next, an operation that the roller 5 receives when the trolley 2 passes through the roller deflection unit will be described. In the case of the roller deflection unit 10 (see FIG. 5A of the first embodiment), the roller 5 that has rolled on the reference roller contact surface 9 is deflected inside the first inwardly flat V-shaped recess 11. When passing through the upper end ridge line 17 of the descending slope 12, the top 5 b of the roller 5 is subjected to the action of falling to the inside of the opposing rails 8, 8, and the front end 5 a of the roller is inward of the opposing rails 8, 8 with respect to the traveling direction. Receiving an action toward Next, when the roller 5 is simultaneously in contact with the slope 12 and the ascending slope 13 deflected to the outside of the opposing rail at the valley portion 18, the front end 5a is directed in the traveling direction. When passing through the upward slope 13 that deflects outward, the roller 5 is subjected to the action of directing the front end 5a outward. Then, when entering the region of the outward flat V-shaped recess 14 beyond the ridge line 17 at the upper end of the slope 13, the top 5b of the roller 5 is subjected to the action of falling outside the opposing rails 8 and 8, and on the outside If the roller 5 passes along this downward slope 15 that deflects and the roller 5 simultaneously contacts the slope 15 and the upward slope 16 that deflects inward at the valley portion 18, the roller faces the trolley traveling direction. When the roller 5 passes through the upward inclined surface 16 deflected inward, the roller 5 is subjected to the action of directing the front end 5a inward of the opposing rails 8 and 8. Then, after passing through the upper end ridge line 17 of the inclined surface 16, it returns to the initial state described above, and passes through the roller deflecting unit 10 while repeating the same operation in sequence. After passing through the last flat V-shaped concave portion and reaching the region of the reference contact surface 9, the roller 5 returns to a state in which the top portion 5 b of the roller 5 is vertical and the front end 5 a faces the traveling direction, along the rail 8. And run.

  Next, in the case of the roller deflecting portion 20 (see FIG. 5B of the second embodiment), the roller 5 that has rolled on the reference roller contact surface 9 is outside the first outward-facing flat convex portion 21. When passing the lower end trough line 27 of the ascending slope 22 that is deflected to the top, the top 5b of the roller 5 is subjected to the action of falling to the outside of the opposing rails 8 and 8, and the front end 5a of the roller is opposed to the opposing rails 8 and 8 with respect to the traveling direction. Receiving an inward action. Next, when the roller 5 reaches the top of the mountain portion 28 where the inclined surface 22 and the descending inclined surface 23 deflected to the outside of the opposing rail intersect, the front end 5a faces in the traveling direction. When passing through the downward slope 23 deflected outward, the roller 5 is subjected to the action of directing the front end 5a outward. And when it enters the region of the inwardly flat mountain-shaped convex part 24 beyond the valley line 27 at the lower end of the slope 23, the top part 5b of the roller 5 is subjected to the action of falling inside the opposing rails 8 and 8, and to the outside. When the roller 5 passes through the inclined surface 25 along the deflecting ascending slope 25 and the roller 5 reaches the top of the mountain portion 28 where the inclined surface 25 and the descending inclined surface 26 that deflects inwardly intersect, the roller faces the trolley traveling direction. When the roller 5 passes through the downward slope 26 deflected inward, the roller 5 is subjected to the action of directing the front end 5a inward of the opposing rails 8 and 8. Then, after passing through the lower end trough line 27 of the slope 26, it returns to the initial state described above, and passes through the roller deflecting unit 20 while repeating the same operation sequentially. When the roller 5 reaches the reference contact surface 9 region after passing through the last flat mountain-shaped convex portion, the top 5b of the roller 5 returns to a state in which the top 5b is vertical and the front end 5a faces the traveling direction. Run.

  The roller deflecting portion can be formed in an appropriate form other than the forms shown in the first and second embodiments. That is, when the trolley 2 passes along the rail contact direction 9, 9 serving as a reference for the left and right rails 8, 8, the rollers 5, 5 of the trolley are moved with respect to the trolley traveling direction. A single or a plurality of deflection slopes for tilting the front ends 5a, 5a in the left-right direction and / or the roller tops 5b, 5b in the inner and outer directions of the opposing rail with respect to the vertical direction may be formed. Further, the face portion 8a of the rail 8 may be formed such that the reference roller contact surface is formed horizontally and the roller deflection portion is formed on the horizontal plane in any of the above forms. When the reference roller contact surface is horizontal, the outer periphery of the roller of the trolley is not provided with a taper and is a parallel cylindrical shape. In this case, of course, including the case of either the first or second embodiment, the opposing ends or web portions of the face portions 8a, 8a of the opposing rails 8, 8 are used for preventing the trolley 2 from meandering. A vertical guide roller in contact with the opposing surfaces 8b and 8b may be provided on the main body 3 of the trolley 2. Further, the roller deflection portion described above is formed directly on the rail 8 as described above, and although not shown, a belt-like roller deflection member having a slope having the same shape as the roller deflection portion is formed on one side. If necessary, this roller deflection member may be mounted on the roller contact surface of the rail to inspect the deterioration of the roller bearing. In other words, a part of the roller contact surface of the rail is cut out or a recess is formed, and a belt-like member that is connected to the roller contact surface serving as a reference for the rail is usually attached to the cut out portion or the recess, and if necessary, An embodiment in which the belt-like member is removed and the roller deflection member is attached to the removal portion is also possible.

  At the location where the roller deflection portion 10 or 20 or the like of the rail 8 is provided, the rail web portion 8b is cut open over almost the entire length of the roller deflection portion to form a notch window 8c. An appropriate reinforcing member 8 d is provided below 8. When the trolley passes through the roller deflection unit 10 or 20 of the traveling rail, the roller tries to roll along the direction of the inclined surface of the roller deflection unit. In other words, as described above, the left and right rollers 5 and 5 of the trolley 2 are respectively directed to the zigzag ridge line 17 when passing through the roller deflection unit 10 and to the zigzag valley line 27 when passing through the roller deflection unit 20. An action of deflecting in a direction along a line orthogonal to these lines is received. In addition, in addition to the action, the side surfaces 7 and 7 of the rollers 5 and 5 are perpendicular to the opposing rails 8 and 8 so as to follow the slopes inclined inward and outward with respect to the roller contact surfaces 9 and 9 serving as the reference of the opposing rails 8 and 8. At the same time, it also receives the action of inclining inward and outward. When the bearings 6 and 6 of the trolley rollers 5 and 5 are rattled, the left and right rollers 5 and 5 have the left and right opposite directions with respect to the traveling direction, that is, the front ends of the rollers, as shown in FIGS. 5a and 5a are inclined with respect to the opposing rails 8 and 8 inward or outward. At the same time, although not shown in the drawing, the left and right rollers 5 and 5 Inclination occurs such that the top portions 5b and 5b are inclined inward or outward with respect to the opposing rail. The inclination of these rollers 5 increases as the backlash associated with deterioration such as wear of the roller bearing portion 6 increases. Therefore, by monitoring and observing the inclination of the roller, it is possible to determine whether or not it is necessary to monitor and replace the deterioration of the bearing portion 6 of the roller 5.

  Next, the observation means 34 and the observation result display means 40 of the deterioration inspection apparatus 1 for the bearing section 6 of the trolley roller 5 according to the present invention will be described with reference to FIGS. First, as for the observation means 34, as shown in FIG. 7, the central portion of the side surface of the roller 5 passing through the roller deflecting portion 10 or 20 from the diagonally upper left and right sides through the left and right cutout windows 8c and 8c beside the cutout window 8c. Left side projector 30 and right side projector 30a installed so as to irradiate band light 38 that spreads horizontally toward the left side, and left video camera (left camera) installed so as to face the left and right cutout windows 8c, 8c from the left and right sides, respectively. 35 and a right video camera (right camera) 35a, and an illuminating lamp 32 that illuminates a machine number 37 as a trolley identification symbol affixed or described on the side surface of the main body 3 of the trolley 2 projecting to a position exposed below the rail 8. A machine number shooting video camera (machine number shooting camera) 36 for shooting the machine number 32 is installed and configured. As the projectors 30 and 30a for irradiating the band light, an appropriate known method such as irradiating the band-shaped light passing through the slit from the light source through the lens can be used, but the projectors 30 and 30a for irradiating the laser beam are used. May be. The bearing portion deterioration inspection apparatus 1 includes a control unit 29 as shown in the block diagram of FIG. 10, and the control unit 29 supplies laser power to the left and right projectors 30 and 30a. 31 and 31, an illuminating lamp power supply 33 that supplies power to the above-described illuminating lamp 32, and a camera control device (not shown) that controls the above-described cameras 35, 35a, and 36. The display unit 40 is built in the control unit 29 (or may be connected to the control unit), and an image synthesis unit 41 that synthesizes each video image taken by each of the cameras 35, 35a, and 36, and the image And a monitor 42 as an image display means for displaying the synthesized image synthesized by the synthesizing means 41, and the monitor 42 is connected to the control unit 29 with a cable. The monitor 42 may be a video monitor for normal video image reproduction.

  When the trolley 2 passes through the roller deflecting portion 10 or 20, if the bearing portion 6 of the roller 5 has a backlash, the roller 5 is inclined according to the backlash. On the other hand, from the left and right projectors 30 and 30a, strip-shaped laser beams (band light) 38 and 38 spreading in the horizontal direction are passed through the notch window 8c from the obliquely upward direction to approximately the center of the side surfaces 7 and 7 of the rollers 5 and 5, respectively. Irradiated to cross. Accordingly, horizontal irradiation lines 39 and 39a that are brightly illuminated by the band lights 38 and 38 appear on the side surfaces 7 and 7 of the passing rollers. However, the irradiation rays 39 and 39a are applied to the roller side surface 7 by the left and right deflections of the front ends 5a, 5a, 5a and 5a of the left and right rollers 5, 5, 5 and 5 of the trolley 2, respectively. Since the arrival point is shifted up and down at the left and right ends of the roller, the irradiation lines 39 and 39a are tilted in the rotation direction of the roller with respect to the horizontal direction (that is, the left and right are tilted up and down). FIG. 8 shows a state in which the irradiation lines 39 and 39a appear in an inclined manner.

  The inclination of the irradiation lines 39 and 39a due to the irradiation of the band light 38 from above obliquely increases or decreases in accordance with the backlash of the roller bearing, and the magnitude of the roller inclination is a band-like shape that is illuminated with the band light and shines brightly. It appears as the magnitude of deflection of the irradiation beam forward and backward in the roller rotation direction. Therefore, in addition to directly observing the inclination of the irradiation lines 39 and 39a directly from the side of the roller, it is possible to measure using an appropriate measuring tool such as a scale, or to measure by a method such as photography. However, apart from the measurement by direct visual observation or photography, it is convenient to shoot the irradiation lines 39 and 39a appearing inclined on the roller side surfaces 7 and 7 with the left camera 35 and the right camera 35a and shooting them as moving images. If you take a video, you can monitor and observe the situation where the roller deflection changes, so you can more appropriately judge the situation and find abnormal movements. Furthermore, if an appropriate recording means such as a video tape recorder or DVD device (not shown) is built in or connected to the image synthesizing means 41 of the control unit 29, the moving image can be video-recorded and reproduced at another time. It is also possible to stop the image during playback of the recorded image and measure the tilt of the irradiation lines 39, 39 on the screen of the playback image.

  In addition, when the trolley 2 passes the roller deflecting portion 10 or 20, as described above, the front ends 5a and 5a are deflected inward or outward with respect to the traveling direction of the rollers 5 and 5, in addition to the left and right sides. The tops 5b and 5b of the rollers 5 and 5 are inclined inward or outward with respect to the vertical. Although not shown, the left and right projectors 30 and 30a are installed obliquely forward or obliquely behind the rollers 5 and 5, unlike the positions shown in FIG. The deterioration of the roller bearing portion 6 may be measured by irradiating a band light spreading in the vertical direction to the side surfaces 7 and 7 of the front and rear rollers 5 and 5 through the notch window 8c so as to cross almost the center of the rollers. In that case, vertical irradiation lines that are brightly illuminated by the band light appear on the roller side surfaces 7 and 7. However, since the irradiation point of the light beam to the roller side surface 7 is shifted back and forth at the upper and lower ends of the roller due to left and right deflection with respect to the vertical of the top portions 5b and 5b of the rollers 5 and 5, the irradiation line is vertical. On the other hand, the roller is tilted back and forth in the rotational direction (that is, the top and bottom are tilted back and forth). The irradiation lines appearing on the roller side surfaces 7 and 7 are photographed with the left camera and the right camera in the same manner as described above.

  Next, the flow of image composition in the display means 40 will be described with reference to FIG. The left roller image 44 photographed by the left camera 35, the right roller image 45 photographed by the right camera 35a, and the machine number image 46 photographed by the machine number photographing camera 36 are controlled from the respective cameras 35, 35a, 36. Input to the image composition means 41 of the unit 29. The image composition means 41 performs image composition for displaying the three images 44, 45, 46 together on the screen of the monitor 42 as one image. The composition of the images is performed in an appropriate screen configuration. For example, the composition image is output as shown in the monitor image 43 of FIG. The left roller image 44 shows an irradiation line 39 (see FIG. 7) of the band light 38 irradiated to the side surfaces 7 of the front and rear wheels, with the front wheel of the roller on the left side of the trolley 2 on the left and the rear wheel on the right. Yes. The right roller image 45 shows an irradiation line 39a (see FIG. 7) of the band light 38 irradiated on the side surfaces 7 of the front and rear wheels, with the front wheel of the roller on the right side of the trolley 2 being on the right and the rear wheel on the left. Yes. The machine number image 46 shows the machine number (identification symbol) 37 of the machine body attached to the left side surface of the trolley body 3. The image of the monitor screen 43 is arranged with the main part of the image 44 in the upper part, the main part of the image 45 in the interruption, and the main part of the image 46 in the lower part. It is configured to display with characters representing roller identification and machine number. As an image configuration of the monitor screen 43, the right roller image may be reversed left and right so that the front wheel is positioned on the left side of the screen.

It is a top view which shows an example of the trolley apparatus used as the application object of this invention. It is a side view of the trolley apparatus of FIG. It is a figure which shows typically the relationship between the roller deflection | deviation part formed in the rail, and the trolley roller in this roller deflection | deviation part seeing from the upper direction. It is a figure which shows the shape of a roller deflection | deviation part, (a) is a plane, (b) has shown the side surface seen from the inner side of a rail, respectively. It is the perspective view which looked at the roller deflection | deviation part from diagonally upward inside a rail, (a) shows 1st Example, (b) shows 2nd Example, respectively. FIGS. 3A and 3B are partial views showing an enlarged view of FIG. 3 viewed from the front and rear in the direction of travel of the trolley, where FIG. 3A shows the front roller at the position of line A from the front, and FIG. 3B shows the rear roller at the position of line B. It is the figure seen from back, respectively. The figure which shows typically the structure of the observation part in the bearing part deterioration test | inspection apparatus of the trolley roller which concerns on this invention, and has shown the trolley part in the state which looked at the front-wheel side from back. It is a figure which shows the inclination of the irradiation line of the light which appears on a roller side surface, when horizontal belt light is irradiated to the trolley roller side surface of the state shown in FIG. 3 from the position of the light projector shown in FIG. It is a figure explaining an example of the process sequence which synthesize | combines the image image | photographed with each video camera, and displays it on a monitor screen. It is a block diagram which shows an example of the whole structure of a projector, a video camera, and an image display means.

Explanation of symbols

1 Bearing part deterioration inspection device 2 Trolley (trolley device)
3 Main body 4 Support shaft 5 Roller (trolley roller)
5a Front end 5b Top part 6 Bearing part (Rolling bearing part)
7 Side 8 Rail (opposing rail, traveling rail)
8a Face part 8b Web part 8c Notch window 8d Reinforcement member 9 Roller contact surface (reference roller contact surface, rail surface)
10, 10a Roller deflection part 11 Inwardly flat V-shaped recess 12 Down slope (deflection slope) deflecting inward
13 Ascending slope that deflects outward (deflection slope)
14 Outwardly flat V-shaped recess 15 Downward slope that deflects outward (deflection slope)
16 Inclined slope that deflects inward (deflection slope)
17 Ridge line 18 Valley (concave part)
20 Roller deflection part 21 Outward flat mountain-shaped convex part 22 Up slope (deflection slope) which deflects inside
23 Down slope that deflects outward (deflection slope)
24 Inwardly flat mountain-shaped convex part 25 Up slope (deflection slope) which deflects outside
26 Downhill slope that deflects inward (deflection slope)
27 Tani Line 28 Mountain (convex)
29 Control unit 30 Left side projector 30a Right side projector 31 Laser power supply 32 Illumination lamp 33 Illumination lamp power supply 34 Observation means 35 Left video camera (left camera)
35a Right video camera (right camera)
36 Machine number video camera (machine number camera)
37 Machine number (identification symbol)
38 Band light 39, 39a Irradiation line 40 Display means 41 Image composition means 42 Image display means (monitor)
43 Monitor screen 44 Left roller image 45 Right roller image 46 Machine number image 47 Composite image

Claims (6)

  In a trolley apparatus in which a trolley provided symmetrically with rollers supported via rolling bearings on the left and right sides of the main body part is in contact with the outer periphery of each of the rollers on the left and right opposing rails, A roller comprising a single or a plurality of deflecting slopes for tilting the roller of the trolley in the left-right direction with respect to the direction of travel of the trolley and / or inward and outward of the opposing rail with respect to the vertical direction when the roller passes. The deflection part is formed on the roller contact surface of the rail where the outer periphery of the roller contacts so as to be symmetrical with each other between the left and right rails, and the inclination of the roller that occurs when the trolley passes the roller deflection part, Irradiate the side of the roller with light from an oblique direction, and measure the inclination of the irradiation line of the light that appears by deflecting back and forth in the rotation direction of the roller according to the inclination of the roller. It allows to check the degree of wear degradation of the rolling bearing unit, the bearing portion degradation test method Tororirora.   In a trolley apparatus in which a trolley provided symmetrically with rollers supported via rolling bearings on the left and right sides of the main body part is in contact with the outer periphery of each of the rollers on the left and right opposing rails, A roller comprising a single or a plurality of deflecting slopes for tilting the roller of the trolley in the left-right direction with respect to the direction of travel of the trolley and / or inward and outward of the opposing rail with respect to the vertical direction when the roller passes. The deflection unit is formed on the roller contact surface of the rail where the outer periphery of the roller contacts so as to be symmetrical with each other between the left and right rails, and in the vicinity of the roller deflection unit, a trolley that passes through the roller deflection unit is formed. The roller tilt is applied to the side surface of the roller from an oblique direction, and deflected back and forth in the rotation direction of the roller according to the tilt of the roller to be displayed on the roller side surface. The inclination of the radiation of the band optical provided with observation means for observing from the roller side that comprises a display means for displaying the results of observation by the observation means, the bearing portion deterioration inspection apparatus Tororirora.   The observation means irradiates a horizontal band light passing through the center of the roller from either the upper or lower diagonal direction toward the left and right outer surfaces of the roller of the trolley that passes through the roller deflection unit, or from either the front or rear diagonal direction One of the left and right projectors that irradiates vertical light passing through the center of the roller, and the direction of rotation of the roller before and after the horizontal or vertical line that passes through the center of the roller side surface depending on the inclination of the roller. And left and right video cameras that capture the irradiation light of the band light that appears to be deflected from the side of the roller, and the observation result display means is a plurality of images captured by the left and right video cameras, respectively. The torro according to claim 2, comprising an image composition unit for compositing the roller image to display on one screen, and a monitor for displaying the composite image synthesized by the image composition unit. Bearing portion deterioration check device of the roller.   The trolley body is provided with an individual identification symbol such as a machine number and a machine number photographing video camera for photographing the identification symbol, and the observation result display means is a plurality of rollers photographed by the left and right video cameras, respectively. An image composition means for compositing the image and the machine number image captured by the machine number photographing video camera for display on one screen, and a monitor for displaying the composite image synthesized by the image composition means. The trolley roller bearing portion deterioration inspection device according to claim 3.   The roller deflection part is inclined inward of the opposing rail with respect to the reference roller contact surface, and is deflected inward of the opposing rail toward the trolley traveling direction, and the outer side of the opposing rail toward the trolley traveling direction. Inwardly flat V-shaped recesses that incline the front and back upside slopes and inward of the opposing rail, and each of them inclines outward of the opposing rail with respect to the reference roller contact surface, and the trolley advances An outwardly flat V-shape in which a downward slope that deflects outside the opposing rail in the direction and an upward slope that deflects inside the opposing rail in the direction of travel of the trolley are connected to each other in front and back and are inclined outward from the opposing rail The roller contact of the rails so that the left and right rails are symmetrical with each other so that the recesses are adjacent to each other in the front-rear direction and the ridgelines of the adjacent slopes are zigzag-connected. At least one each provided configured bearing portion deterioration inspection apparatus Tororirora according to any one of claims 2 to 4. The roller deflection part is inclined outwardly of the opposing rail with respect to the reference roller contact surface, and is deflected inward of the opposing rail toward the trolley traveling direction and outside of the opposing rail toward the trolley traveling direction. The downward inclined slopes that are deflected in the forward and backward directions and the outward flat mountain-shaped convex portions that incline outwardly of the opposing rail, and each of which is inclined inward of the opposing rail with respect to the reference roller contact surface, and the trolley traveling direction An inwardly flat mountain-shaped convex portion that inclines inward of the opposing rail by connecting an ascending slope that deflects toward the outside of the facing rail and a descending slope that deflects toward the inside of the facing rail toward the trolley traveling direction. The roller contact surfaces of the rails are arranged so that the left and right rails are symmetrical with each other so that the valleys of the adjacent slopes are zigzag adjacent to each other. Kutomo configured provided one each, bearing portion deterioration inspection apparatus Tororirora according to any of claims 2-4.

Images