JP2014097869A - Sheave groove abrasion loss measuring method and measuring tool of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheave groove abrasion loss measuring method and a measuring tool of an elevator, excellent in portability in a compact type, and capable of restraining material cost.SOLUTION: A first reference surface 11 of a guide cylinder 8 is contacted with groove shoulders 9b and 9c of a first rope race 5a of a sheave 4, and a gauge bar 15 is inserted into an insertion part 12 of the guide cylinder 8, and a spherical part 16 on one end of the gauge bar 15 is applied to the first rope race 5a, and an abrasion loss of the first rope race 5a is measured by a first index part 13a for displaying a relative position between an end part on the second reference surface 14 side of the guide cylinder 8 and an end part on the other end side of the gauge bar 15, and a second reference surface 14 of the guide cylinder 8 is contacted with the groove shoulders 9a and 9b of a second rope race 5b, and the gauge bar 15 is inserted into the insertion part 12 of the guide cylinder 8, and the spherical part 16 of the gauge bar 15 is applied to the second rope race 5b, and an abrasion loss of the second rope race 5b is measured by a second index part 13b for displaying a relative position between an end part on the first reference surface 11 side of the guide cylinder 8 and the end part on the other end side of the gauge bar 15.

Description

  The present invention relates to a sheave groove wear amount measuring method and a measuring jig for an elevator for measuring the wear amount of a sheave groove of a sheave around which a main rope is wound.

  FIG. 14 is a longitudinal sectional view showing a state in which a conventional sheave groove wear amount measuring jig is installed in a sheave groove of a sheave, and FIG. 15 is a diagram showing a conventional sheave groove wear amount measuring jig of a sheave. FIG. 16 is a diagram illustrating a state in which a conventional sheave groove wear amount measuring jig is disposed in a second sheave groove of a sheave.

  Generally, the main rope that connects the elevator car and the counterweight is wound around the sheave groove of the sheave, and the tension of the main rope is applied to this ropeway so that the elevator is used for a long time. As a result, the rope groove of the sheave is worn. Therefore, the wear amount of the sheave groove of the sheave is regularly measured. As one of the prior arts of the sheave groove wear amount measuring method and measuring jig of the elevator used for measuring the wear amount of the sheave groove of such a sheave, the method for measuring the sheave groove of the elevator sheave shown in Patent Document 1 is described. And measuring jigs are known.

  As shown in FIG. 14, a rope groove measuring jig (hereinafter referred to as a measuring jig for convenience) 60 of the elevator sheave is provided on a sheave 64 of the hoisting machine. This sheave 64 has, for example, three rope grooves 65 that are formed apart from each other in the axial direction around which a main rope that connects the car and the counterweight is wound, and is attached to the wall 61 of the hoistway. It is formed integrally with a rotor disposed opposite to the stator 66 via a shaft 63 provided in the housing 62. In the following description, for the sake of convenience, among the three ropes 65 shown in FIG. 15, the central rope is called the first rope 65a, and the rope on the stator 66 side is called the second rope 65b. .

  The measuring jig 60 is formed of a cylindrical body, corresponds to the groove shoulders 69 on both sides of the first rope groove 65a provided on the sheave 64, and the second rope groove 65b adjacent to the first rope groove 65a. A guide tube 68 in which a cross section corresponding to the groove width is formed and a reference surface 71 facing the groove shoulder 69 on both sides of the first rope groove 65a is formed at the lower end; and a second rope groove of the guide tube 68 A retraction portion 80 formed by cutting off at the upper end side at a location facing 65b, and a longitudinal hole provided vertically through the guide tube 68, is disposed at a position facing the first tie groove 65a. The first insertion portion 72a and the guide tube 68 are provided vertically to be disposed at a position facing the second rope groove 65b, and have an opening narrower than the back side on the side opposite to the first insertion portion 72a in the cross section. A second insertion portion 72b.

  The measuring jig 60 includes a gauge rod 75 having a sphere-shaped portion 76 having a diameter corresponding to the diameter of the main rope wound around the rope groove 65, and a first portion formed at the upper end portion of the guide tube 68. The first index 74a and the second index 74b formed on the upper end portion of the gauge rod 75, and the rope groove 65 in which the gauge rod 75 is inserted into the insertion portions 72a and 72b of the guide cylinder 68 and the spherical portion 76 is opposed. The wear state of the tie groove 65 is displayed by the relative position of the first index 74a and the second index 74b when in contact with.

  In the method of measuring the ridge groove of the elevator sheave, the wear amount of the ridge groove 65 of the sheave 64 is measured using the measurement jig 60 configured as described above. Specifically, first, the reference surface 71 of the guide tube 68 is brought into contact with the groove shoulders 69 on both sides of the first rope groove 65a, and the gauge rod 75 is inserted into the first insertion portion 72a of the guide tube 68. The wear state of the first leash groove 65a is confirmed by applying the spherical portion 76 to the first leash groove 65a and checking the first and second indicators 74a and 74b at the upper ends of the guide tube 68 and the gauge rod 75. taking measurement.

  In addition, as shown in FIG. 16, the reference surface 71 of the guide tube 68 is in contact with the groove shoulders 69 on both sides of the first rope 65a, and the retracted portion 80 of the guide tube 68 is opposed to the second rope 65b. Then, the gauge rod 75 is inserted into the second insertion portion 72b of the guide tube 68, and the spherical portion 76 of the gauge rod 75 is applied to the second rope groove 65b, so that the first and second indicators of the guide tube 68 and the gauge rod 75 are provided. By confirming 72a, 72b, the wear state of the second rope groove 65b is measured.

Japanese Patent No. 4828041

  In the conventional method of measuring and measuring jigs for elevator sheaves of the elevator sheave disclosed in Patent Document 1 described above, the shape of the shoulders 69 on both sides of the sheave groove 65 of the sheave 64 is different from that of the first sheave grooves 65a and 65a. As a measure for measuring the wear amount of the second rope groove 65b, a retracting portion 80 is provided at the lower end of the guide cylinder 68 so that the lower end of the guide cylinder 68 does not hit the groove shoulders 69 on both sides of the second rope groove 65b. The first tube groove 65a and the guide tube 68 have a transverse cross section corresponding to a width corresponding to the width between the groove shoulders 69 on both sides of the first and second tube grooves 65a and 65b. Since the two first and second insertion portions 72a and 72b for the second rope groove 65b are provided, the width of the guide tube 68 is increased. For this reason, the size of the measuring jig 60 is increased, and the portability of the measuring jig 60 is reduced, and the material cost is increased.

  The gauge rod 75 inserted into the first and second insertion portions 72a and 72b of the guide cylinder 68 moves freely in the first and second insertion portions 72a and 72b. The first and second indicators 74a, 74a of the guide tube 68 and the gauge rod 75 in a state where the gauge rod 75 is in contact with the groove shoulders 69 on both sides of the first and second rope grooves 65a, 65b. It is necessary for the operator to visually confirm 74b. For this reason, the first and second indicators 74a and 74b are in a position that is difficult for the operator to see, such as when the sheave 64 is disposed between the hoist motor and the hoistway wall 61. Then, since it is difficult for the operator to visually confirm, there is a concern that workability and accuracy in measuring the wear amount of the rope groove 65 of the sheave 64 may be reduced.

  The present invention has been made based on the actual situation of the prior art as described above, and its purpose is to provide a sheave groove wear measuring method and measuring jig for an elevator sheave that is compact and excellent in portability and can suppress the material cost. There is to do.

  In order to achieve the above object, a method for measuring the sheave groove wear amount of an elevator according to the present invention includes a car weight disposed in a hoistway, a counterweight connected to the car via a main rope, and the main weight. A hoisting machine on which a rope is wound to raise and lower these cages and the counterweight, the hoisting machine has a sheave provided rotatably and a motor that rotates the sheave; The sheave is applied to an elevator including a first rope groove having groove shoulders formed on both sides and a second rope groove having a groove shoulder having a shape different from the groove shoulder of the first rope groove. In the method of measuring the sheave groove wear amount of an elevator that measures the wear amount of each sheave groove of the sheave, a first reference surface having one end in contact with a groove shoulder of the first sheave groove, and the other end A second reference surface that is in contact with the groove shoulder of the second rope groove, and whether these first reference surfaces are The first reference surface of the guide tube having an insertion portion in which a longitudinal hole is formed to vertically pass to the second reference surface is brought into contact with the groove shoulder of the first rope and is wound around the sheave. A gauge rod having a sphere-shaped portion having a diameter corresponding to the diameter of the main rope is inserted into the insertion portion of the guide tube, and the sphere-shaped portion is applied to the first rope and the guide tube. And measuring the amount of wear of the first rope by means of a first indicator that displays the relative position between the end of the second reference surface side and the end of the other end of the gauge bar. The second reference surface of the tube is in contact with the groove shoulder of the second rope groove, the gauge bar is inserted through the insertion portion of the guide tube, and the spherical portion is applied to the second rope groove. A second finger for displaying a relative position between the end portion on the first reference plane side of the guide tube and the end portion on the other end side of the gauge rod. It is characterized by measuring the wear amount of the second rope groove by part.

  Moreover, the sheave groove wear amount measuring jig of the elevator according to the present invention includes a counterweight connected to the car via a main rope, and a main weight wound around the car. A hoisting machine for raising and lowering the cage and the counterweight.The hoisting machine has a sheave that is rotatably provided and a motor that rotates the sheave. The sheave is provided in an elevator including a first rope groove having groove shoulders formed on both sides thereof, and a second rope groove having a groove shoulder having a shape different from the groove shoulder of the first rope groove, In the elevator sheave groove wear amount measuring jig for measuring the wear amount of each leve groove, a first reference surface having a shape in contact with the groove shoulder of the first leash groove, and the other end of the second sheave groove in the second groove. Second reference planes that are in contact with the shoulders of the ropes and vertically from these first reference planes to the second reference plane A cylindrical guide tube having an insertion portion in which a longitudinal through hole is formed, and a spherical portion having a diameter corresponding to the diameter of the main rope wound around the sheave are formed at one end, and the insertion of the guide tube A gage rod inserted into a portion, the first reference surface of the guide tube is in contact with a groove shoulder of the first rope, and the gage rod is inserted through the insertion portion of the guide tube so that the spherical portion Is worn by the relative position between the second reference surface side end of the guide tube and the other end of the gauge rod. A first indicator portion for displaying the amount; the second reference surface of the guide tube is in contact with a groove shoulder of the second rope groove; and the gauge bar is inserted through the insertion portion of the guide tube, When the spherical part is applied to the second rope, the end of the guide cylinder on the first reference surface side and the front Is characterized in that a second indicator unit displaying the wear amount of the second rope groove by the relative position of the end of the other end of the gauge bar.

  According to the sheave groove wear amount measuring method and measuring jig for an elevator according to the present invention, it is compact and excellent in portability, and the material cost can be suppressed. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a figure which shows the structure of the elevator with which one Embodiment of the sheave groove wear amount measuring method which concerns on this invention is applied. It is a figure showing the state where the 1st embodiment of the sheave groove wear amount measuring jig concerning the present invention was installed in the 1st sheave groove of a sheave. It is a figure which shows the state which installed 1st Embodiment of the sheave groove wear amount measuring jig which concerns on this invention in the 2nd sheave groove of a sheave. FIG. 3 is an arrow A view of the sheave groove wear amount measuring jig according to the first embodiment of the present invention shown in FIG. 2. It is a figure which shows the state which installed 2nd Embodiment of the sheave groove wear amount measuring jig concerning this invention in the 1st sheave groove of a sheave. It is a figure which shows the state which installed 2nd Embodiment of the sheave groove wear amount measuring jig which concerns on this invention in the 2nd sheave groove of a sheave. It is an arrow B figure of the sheave groove wear amount measuring jig based on 2nd Embodiment of this invention shown in FIG. It is a cross-sectional view of the fixed part of the sheave groove wear amount measuring jig according to the second embodiment of the present invention, and shows a state before the bolt is fastened to the nut. It is a cross-sectional view of the fixed part of the sheave groove wear amount measuring jig according to the second embodiment of the present invention, and is a view showing a state in which a bolt is fastened to a nut. It is a figure explaining the operation | work which installs the sheave groove wear amount measuring jig which concerns on 2nd Embodiment of this invention in the sheave groove of a sheave. It is a figure which shows the state which installed the sheave groove wear amount measuring jig concerning 2nd Embodiment of this invention in the 1st sheave groove of a sheave, and the left figure is the state which the 1st leash is not worn The right figure is a figure which shows the state with which the 1st rope was worn. It is a figure explaining the operation | work which removes the sheave groove wear amount measuring jig which concerns on 2nd Embodiment of this invention from a sheave. It is a figure explaining the operation | work which visually confirms the 1st, 2nd parameter | index part of the sheave groove wear amount measuring jig which concerns on 2nd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the state by which the sheave groove wear amount measuring jig of the prior art was installed in the sheave groove of a sheave. It is a figure explaining the state by which the sheave groove wear amount measuring jig of the prior art was installed in the 1st sheave groove of a sheave. It is a figure explaining the state by which the sheave groove wear amount measuring jig of the prior art was installed in the 2nd rope groove of a sheave.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the sheave groove wear amount measuring method and measuring jig | tool of an elevator sheave which concerns on this invention is demonstrated based on figures.

[First Embodiment]
The first embodiment of the sheave groove wear amount measuring jig for an elevator according to the present invention is, for example, when measuring the wear amount of a sheave groove of a sheave around which a main rope is wound, as shown in FIG. Is provided. The elevator includes a car 51 disposed in the hoistway 50 and a counterweight 52 connected to the car 51 via a main rope 7.

  The car 51 has, for example, a car pulley 51a that is rotatably provided at the lower part, and the counterweight 52 has, for example, a counterweight pulley 52a that is rotatably provided at the upper part. The elevator also includes a hoisting machine 54 on which the main rope 7 is wound and which lifts and lowers the car 51 and the counterweight 52.

  The hoisting machine 54 includes a sheave 4 that is rotatably provided, a motor unit that rotates the sheave 4 formed inside the hoisting machine 54, and a sheave 4 that is provided and rotated on the upper part. It has an upper brake 54a that stops and a lower brake 54b that is provided at the lower portion and stops the rotating sheave 4, and is arranged in a hoistway 50 at a position where the car 51 and the counterweight 52 do not interfere with each other. ing.

  In the upper part of the hoistway 50, an upper beam 56 is disposed along the horizontal direction from the back wall to the landing side, and a pair of turning pulleys 57, 58 for turning the main rope 7 to the upper beam 56 are provided. It is provided so as to be rotatable. The turning pulley 57 is disposed between the horizontal position of the hoisting machine 54 and the counterweight 52, and the turning pulley 58 is disposed between the horizontal position of the hoisting machine 54 and the car 51.

  Further, in the hoistway 50, a car guide rail 53a for guiding the car 51 and a counterweight guide rail 53b for guiding the counterweight 52 are provided upright apart from each other. The upper ends of the rail 53a and the counterweight guide rail 53b are fixed to the upper beam 56.

  The main rope 7 is wound around the sheave 4 of the hoisting machine 54, the car pulley 51 a, the counterweight pulley 52 a, and the turning pulleys 57 and 58, and both ends of the main rope 7 are fixed to the upper beam 56. Thus, the car 51 and the counterweight 52 are suspended in the hoistway 50.

  Accordingly, when the motor of the hoisting machine 54 is driven to rotate the sheave 4, the car 51 and the counterweight 52 are changed to the car guide rail 53 a and the counterweight counter according to the rotation direction of the sheave 4. Guided by the rails 53b, the hoistway 50 is moved up and down relatively. In addition, hatch doors 59a to 59c are provided at landings on each floor where the car 51 stops, and are opened and closed in conjunction with a car door (not shown) of the car 51.

  Here, the sheave 4 of the hoisting machine 54 has a plurality of rope grooves 5 around which the main rope 7 is wound, for example, as shown in FIG. It is formed apart in the axial direction of the rotating shaft. These leash grooves 5 are formed with, for example, a first leash groove 5a in which groove shoulders 9b and 9c are formed on both sides, and a groove shoulder 9a having a shape different from the groove shoulders 9b and 9c of the first leash groove 5a. The second rope groove 5b and the third rope groove 5c formed with a groove shoulder 9d having a different shape from the groove shoulders 9b, 9c of the first rope groove 5a.

  The first tie groove 5a and the second tie groove 5b share a groove shoulder 9b, and the first tie groove 5a and the third tie groove 5c share a groove shoulder 9c. The groove shoulder 9a of the second rope groove 5b and the groove shoulder 9d of the third rope groove 5c are symmetrical with respect to the first rope groove 5a, and the groove shoulder of the first rope groove 5a. It is formed higher than 9b and 9c.

  A sheave groove wear amount measuring jig (hereinafter referred to as a measuring jig for convenience) 30A of an elevator according to the first embodiment of the present invention guides a gauge rod 15 described later as shown in FIGS. A cylindrical guide tube 8 is provided. The guide tube 8 has a first reference surface 11 having a shape in which one end is in contact with the groove shoulders 9b, 9c of the first rope groove 5a, and a shape in which the other end is in contact with the groove shoulders 9a, 9b of the second rope groove 5b. The second reference surface 14 and an insertion portion 12 in which a longitudinal through hole is formed through the first reference surface 11 and the second reference surface 14.

  The second reference surface 14 of the guide tube 8 has, for example, a step 14a corresponding to the difference in height between the groove shoulder 9b of the first rope groove 5a and the groove shoulder 9a of the second rope groove 5b. Since the groove shoulder 9a of the second rope groove 5b and the groove shoulder 9d of the third rope groove 5c are symmetrical with respect to the first rope groove 5a, the groove shoulders 9c, 9d of the third rope groove 5c Also come in contact.

  The measuring jig 30 </ b> A has a spherical portion 16 having a diameter corresponding to the diameter of the main rope 7 wound around the sheave 4 at one end, and is inserted into the insertion portion 12 of the guide cylinder 8. It has. The gauge rod 15 has, for example, a gripping portion 15a held by an operator at the other end, and the diameter of the spherical portion 16 is manufactured in accordance with, for example, the diameter of the main rope 7 or the minimum wear diameter. Yes.

  Further, in the measuring jig 30A, as shown in FIG. 2, the first reference surface 11 of the guide tube 8 is in contact with the groove shoulders 9b and 9c of the first rope groove 5a, and the gauge rod 15 is inserted through the guide tube 8 12 and when the spherical portion 16 is brought into contact with the first rope groove 5a, the end portion on the second reference surface 14 side of the guide tube 8 and the other end side of the gauge rod 15 (the gripping portion 15a side). There is provided a first indicator portion 13a for displaying the wear amount of the first rope groove 5a according to the relative position of the end portion.

  The first indicator portion 13a includes, for example, a second reference surface 14 of the guide tube 8 and a scale 17 provided along the gauge rod 15 on the lower side of the grip portion 15a of the gauge rod 15. The second reference surface 14 of the guide tube 8 on the scale 17 of the gauge rod 15 is defined as the relative position of the end portion of the second reference surface 14 side of 8 and the end portion of the other end side (gripping portion 15a side) of the gauge rod 15. Is displayed at the position of.

  In the measuring jig 30A, as shown in FIG. 3, the second reference surface 14 of the guide tube 8 is in contact with the groove shoulders 9a and 9b of the second rope groove 5b, and the gauge rod 15 is the insertion portion of the guide tube 8. 12, when the spherical portion 16 is brought into contact with the second rope groove 5b, the end portion of the guide tube 8 on the first reference surface 11 side and the other end side of the gauge rod 15 (the gripping portion 15a side). The second indicator portion 13b for displaying the wear amount of the second rope groove 5b according to the relative position of the end portion of the second rope groove 5b is provided.

  The second indicator portion 13b includes, for example, a first reference surface 11 of the guide tube 8 and a scale 17 of the gauge rod 15, and the end portion of the guide tube 8 on the first reference surface 11 side and the gauge rod 15 The relative position of the other end side (the gripping portion 15a side) of the gauge rod 15 is displayed at the position of the first reference surface 11 of the guide cylinder 8 on the scale 17 of the gauge rod 15.

  In the elevator sheave groove wear amount measuring jig according to the first embodiment of the present invention configured as described above, the wear amount of the sheave groove of the sheave is measured in the following procedure, for example.

  In the first embodiment of the sheave groove wear amount measuring jig for an elevator according to the present invention, first, an operator who measures the wear amount of the sheave groove 5 of the sheave 4 starts with the guide tube 8 as shown in FIG. The first reference surface 11 is in contact with the groove shoulders 9b and 9c of the first rope groove 5a, and the gauge rod 15 is inserted into the insertion portion 12 of the guide tube 8. Then, the operator applies the spherical portion 16 of the gauge bar 15 to the first rope groove 5a and the end portion on the second reference plane 14 side of the guide tube 8 and the other end side of the gauge rod 15 (the gripping portion 15a). The amount of wear of the first tie groove 5a is measured by confirming the relative position of the end portion on the side) with the first indicator portion 13a.

  At this time, when the first rope groove 5a is worn, the gauge bar 15 is lowered with respect to the guide tube 8 more than when it is not worn. Therefore, the gauge that can be visually confirmed in the first indicator portion 13a. The range G of the scale 17 of the bar 15 is narrowed.

  Next, after the operator removes the guide tube 8 and the gauge bar 15 from the first rope groove 5a, the second reference surface of the guide tube 8 is turned upside down as shown in FIG. 14 is in contact with the groove shoulders 9 a and 9 b of the second rope groove 5 b, and the gauge rod 15 is inserted through the insertion portion 12 of the guide tube 8. Then, the operator applies the spherical portion 16 of the gauge bar 15 to the second rope groove 5b and the end portion on the first reference plane 11 side of the guide tube 8 and the other end side of the gauge rod 15 (the gripping portion 15a). The wear amount of the second rope groove 5b is measured by confirming the relative position of the end of the second side with the second indicator portion 13b.

  At this time, when the second tie groove 5b is worn, the gauge bar 15 is lowered with respect to the guide tube 8 as compared with the case where the second tie groove 5b is not worn similarly to the measurement of the wear amount of the first tie groove 5a. Therefore, the range G of the scale 17 of the gauge rod 15 that can be visually confirmed in the second indicator portion 13b is narrowed.

  Next, after removing the guide tube 8 and the gauge bar 15 from the second rope groove 5b, the operator rotates the guide tube 8 180 degrees around the axis to rotate the second reference of the guide tube 8 (not shown). The surface 14 is in contact with the groove shoulders 9c and 9d of the third rope groove 5c, and the gauge rod 15 is inserted through the insertion portion 12 of the guide tube 8. Then, the operator applies the spherical portion 16 of the gauge bar 15 to the third rope groove 5c in the same manner as the measurement of the wear amount of the second rope groove 5b, and the guide tube 8 on the first reference surface 11 side. By confirming the relative position 13b between the end portion and the end portion on the other end side of the gauge rod 15 (on the gripping portion 15a side) with the second indicator portion 13b, the wear amount of the third rope groove 5c is measured.

  According to the elevator sheave groove wear amount measuring method and measuring jig according to the first embodiment of the present invention configured as described above, the shape of the groove shoulders 9b and 9c of the first sheave groove 5a in the sheave 4 and Even if the shape of the groove shoulders 9a, 9d of the second and third leash grooves 5b, 5c is different, the first reference surface 11 and the second reference surface 11 that are in contact with these leash grooves 5a, 5b at both ends of the guide tube 8 are used. The reference surface 14 is formed so that the guide tube 8 is turned upside down according to the rope grooves 5a to 5c in which the guide tube 8 is installed, and the positions of the reference surfaces 11 and 14 on the upper end side of the guide tube 8 are gauged. By reading with the scale 17 of the bar 15, the wear amount of the rope grooves 5 a to 5 c can be accurately measured. Thereby, it is not necessary to increase the width of the guide cylinder 8, and the measuring jig 30A can be miniaturized. Therefore, the guide cylinder 8 can be compact and excellent in portability, and the material cost can be suppressed. This state can be kept good.

  Moreover, the sheave groove wear amount measuring method and measuring jig for an elevator according to the first embodiment of the present invention include an end portion on the second reference surface 14 side of the guide tube 8 and a gauge rod in the first indicator portion 13a. 15 is displayed at the position of the second reference surface 14 on the scale 17 of the gauge rod 15, and the second indicator portion 13b is connected to the guide tube 8 at the second position. The relative position between the end of one reference surface 11 and the end of the other end (the gripping portion 15a) of the gauge rod 15 is displayed at the position of the first reference surface 11 on the scale 17 of the gauge rod 15. Therefore, for example, by setting the wear limit value of the rope groove 5 to the scale 17 in advance, the operator can easily inspect that the wear state of the rope groove 5 has not reached the wear limit. Therefore, since the operator can quickly determine the replacement time of the sheave 4, the replacement work of the sheave 4 can be performed efficiently.

[Second Embodiment]
The elevator sheave 4 provided with the elevator sheave groove wear amount measuring jig according to the second embodiment of the present invention is disposed, for example, between the motor of the hoisting machine 54 and the wall of the hoistway 50. . An elevator sheave groove wear measuring jig (hereinafter referred to as a measuring jig for convenience) 30B according to the second embodiment of the present invention includes a gauge rod 15 in addition to the configuration of the first embodiment described above. Is provided with a fixing part for fixing the gauge rod 15 to the guide cylinder 8 in a state where the gauge bar 15 is inserted through the insertion part 12 of the guide cylinder 8.

  For example, as shown in FIGS. 5 to 7, the fixing portion is disposed at the end of the guide tube 8 on the first reference surface 11 side, and the gauge rod 15 is connected to the end of the guide tube 8 on the first reference surface 11 side. A first fixing portion 40 that is fixed to the portion, and an end portion of the guide tube 8 on the second reference surface 14 side, and the gauge rod 15 is connected to the end portion of the guide tube 8 on the second reference surface 14 side. It consists of the 2nd fixing | fixed part 41 fixed with respect to.

  For example, as shown in FIGS. 8 and 9, each of the fixing portions 40 and 41 includes a slit 45 in which a cut is formed from the side surface of the guide cylinder 8 toward the insertion portion 12, and a slit 45 so that a gap between the slit 45 is reduced. It is comprised from the clamping part which clamps the guide cylinder 8 from the both sides. For example, the clamping portion is formed so as to be orthogonal to the slit 45 and is attached to the side of the slit 46 in the guide tube 8 and through the guide tube 8. A common nut 44 and a bolt 43 whose shaft portion is inserted into the through hole 46 and screwed into the nut 44 are fastened and fixed to the nut 44, whereby the gauge rod 15 is attached to the guide tube 8. It is trying to fix it.

  In the elevator sheave groove wear amount measuring jig according to the second embodiment of the present invention configured as described above, the wear amount of the sheave groove of the sheave is measured in the following procedure, for example.

  Since the basic procedure of the second embodiment of the method of measuring the sheave groove wear amount of the elevator according to the present invention is the same as that of the first embodiment described above, the description overlapping the description of the first embodiment. The details of the work of the operator confirming the amount of wear of the sheave groove 5 of the sheave 4 from the first and second indicator portions 13a and 13b using the first and second fixing portions 40 and 41 are omitted. Explained.

  In the second embodiment of the method of measuring the sheave groove wear amount of the elevator according to the present invention, as shown in FIG. 10, first, the operator 31 moves from the work table 32 to the wall side of the hoistway 50 from the motor of the hoisting machine 54. A measuring jig 30B is installed in the ridge groove 5 of the sheave 4 located in That is, when measuring the wear amount of the rope groove 5a, the reference surface 11 is used for both the groove shoulders 9b and 9c, and when measuring the wear amount of the steel groove 5b, the reference surface 14 is used for both the groove shoulders 9a and 9b. In addition, when measuring the wear amount of the rope groove 5c, the reference surface 14 is disposed in contact with both of the groove shoulders 9c and 9d correctly.

  Here, when the operator 31 installs the measuring jig 30B in the first rope 5a as shown in FIG. 11, the first rope 5a is worn as shown in the right view of FIG. For example, since the gauge bar 15 is lowered by a descent amount d corresponding to the wear amount thereof, the range G2 of the scale 17 of the gauge rod 15 that can be visually confirmed on the first indicator portion 13a when the rope groove 5a is worn is shown in FIG. 11 is smaller than the range G1 of the scale 17 of the gauge bar 15 that can be visually confirmed in the first indicator portion 13a when the rope groove 5a shown in the left figure is not worn, the number of scales of the scale 17 Decrease.

  At this time, the operator 31 tightens and fixes the bolt 43 of the second fixing portion 41, which is positioned above, to the nut 44 in a state where the measuring jig 30B is installed in the first rope groove 5a. The rod 15 is fixed to the guide tube 8. Then, the operator 31 holds the measuring jig 30B by hand as shown in FIG. 12, removes it from the sheave 4, and moves the measuring jig 30B onto the work table 32 in front of the hoisting machine 54 as shown in FIG. The scale 17 of the gauge rod 15 in the first indicator portion 13a of the measuring jig 30B is visually checked to determine the wear amount of the first rope groove 5a of the sheave 4. For the second and third ropes 5b and 5c, the reference surface to be contacted is 14, and the gauge jig 15 is fixed upside down in the arrangement state of the measuring jig 30B. 40. In other respects, the wear amount is measured in the same procedure as that of the first rope groove 5a. In the case of measurement, if the fixed portion that is easy to operate when measuring the wear amount of the rope groove 5a is the first fixed portion 40 located below, it is possible to fix the gauge rod 15 only there. is there. Similarly, if the fixed portion that is easy to operate when measuring the wear amount of the rope grooves 5b and 5c is the second fixed portion 41 located below, it is possible to fix the gauge rod 15 only there. .

  According to the sheave groove wear amount measuring method and measuring jig of the elevator according to the second embodiment of the present invention configured as described above, the same effect as the first embodiment described above can be obtained, and the sheave 4 Even if it is located between the motor of the hoisting machine 54 and the wall of the hoistway 50 and is not easily seen by the operator 31 on the work table 32, the gauge rod 15 inserted into the insertion portion 12 of the guide cylinder 8. Is fixed by the first and second fixing portions 40 and 41 and does not move in the guide cylinder 8, so that the first and second values measured when the measuring jig 30B is installed in the rope groove 5 of the sheave 4 are measured. While maintaining the relative position between the scale 17 of the gauge rod 15 and the reference plane in the indicator portions 13a and 13b, the operator 31 can confirm the scale 17 by moving the measurement jig 30B to a position where it can be easily seen. .

  In particular, in the second embodiment of the present invention, since the first and second fixing portions 40 and 41 are provided at both ends of the guide tube 8, the one of these fixing portions 40 and 41 that has better workability. By fixing only the fixing portion, the gauge rod 15 can be fixed to the guide tube 8, and the work of visually confirming the wear amount of the rope groove 5 of the sheave 4 can be rapidly advanced. Further, by fixing both of the fixing portions 40 and 41, it is possible to reliably suppress the displacement of the gauge rod 15 with respect to the guide tube 8. Thus, the operator 31 can easily and accurately measure the wear amount of the sheave groove 5 of the sheave 4 by the first and second fixing portions 40 and 41 of the measuring jig 30B. High workability and accuracy can be ensured in the quantity measurement.

  In addition, this embodiment mentioned above was described in detail in order to demonstrate this invention easily, and is not necessarily limited to what is provided with all the demonstrated structures. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

  Further, in the elevator sheave groove wear amount measuring method according to the first and second embodiments of the present invention, the wear amount of the sheave groove 5 of the sheave 4 is measured by the first leve groove 5a and the second leash groove. Although the case where it carried out in order of 5b and the 3rd leve groove 5c was demonstrated, the order which measures the abrasion loss of each leve groove 5a-5c is not restricted to this case.

4 sheaves 5 leash grooves 5a first leve groove 5b second leve groove 5c third leve groove 7 main rope 8 guide tube 9a to 9d groove shoulder 11 first reference surface 12 insertion portion 13a first indicator portion 13b 2nd index part 14 2nd reference surface 14a Step 15 Gauge rod 15a Grasping part 16 Spherical part 17 Scale 30A, 30B Measuring jig 40 First fixing part 41 Second fixing part 43 Bolt 44 Nut 45 Slit 46 through-hole 50 hoistway 51 car 52 counterweight 54 hoisting machine

Claims (3)

A car weight disposed in the hoistway, a counterweight connected to the car via a main rope, and a hoisting machine for lifting the car and the counterweight with the main rope wound around, The hoisting machine includes a sheave provided rotatably and a motor that rotates the sheave. The sheave includes a first sheave groove having groove shoulders formed on both sides, and the first sheave. Applied to an elevator including a second shoulder groove formed with a groove shoulder of a different shape from a groove shoulder of the rope groove, and measures the amount of wear of each sheave groove of the sheave In the method
A first reference surface whose one end is in contact with the groove shoulder of the first leash groove, a second reference surface whose other end is in contact with the groove shoulder of the second leash groove, and the first reference surface The first reference surface of the guide tube having an insertion portion formed with a longitudinal through hole extending vertically from the reference surface to the second reference surface is in contact with the groove shoulder of the first leash, and the sheave is attached to the sheave A gauge rod having a spherical portion having a diameter corresponding to the diameter of the main rope to be wound is inserted into the insertion portion of the guide tube, and the spherical portion is applied to the first rope. While measuring the amount of wear of the 1st rope groove by the 1st index part which displays the relative position of the edge part by the side of the 2nd above-mentioned reference pipe of the above-mentioned guide pipe, and the edge part of the other end side of the above-mentioned gauge rod. The second reference surface of the guide tube is in contact with the shoulder of the second rope groove, and the gauge rod is inserted through the insertion portion of the guide tube, A second indicator for displaying a relative position between an end of the guide tube on the first reference surface side and an end of the gauge rod on the other end side with the ball-like portion applied to the second rope. A method for measuring the amount of wear on a sheave groove of an elevator, wherein the amount of wear on the second sheave groove is measured by a section. A car that is arranged in a hoistway, a counterweight connected to the car via a main rope, and a hoisting machine that winds the main rope around the car and lifts the car and the counterweight. The hoisting machine includes a sheave provided rotatably and a motor that rotates the sheave. The sheave includes a first sheave groove having groove shoulders formed on both sides, and the first sheave. The sheave groove wear amount measurement of the elevator is provided in an elevator including a second shoulder groove formed with a groove shoulder of a different shape from the groove shoulder of the leash groove, and measures the wear amount of each leve groove of the sheave In the jig,
A first reference surface whose one end is in contact with the groove shoulder of the first tie groove, a second reference surface whose other end is in contact with the groove shoulder of the second tie groove, and the first reference thereof A cylindrical guide tube having an insertion portion in which a longitudinal hole is formed to vertically communicate from the surface to the second reference surface;
A sphere-shaped portion having a diameter corresponding to the diameter of the main rope wound around the sheave is formed at one end, and a gauge rod inserted through the insertion portion of the guide tube,
The first reference surface of the guide tube is in contact with the groove shoulder of the first rope, and the gauge bar is inserted through the insertion portion of the guide tube so that the spherical portion becomes the first rope. A first indicator that displays the wear amount of the first rope when the contact is made, based on the relative position of the end portion on the second reference surface side of the guide tube and the end portion on the other end side of the gauge rod. And
The second reference surface of the guide tube is in contact with the groove shoulder of the second rope groove, and the gauge bar is inserted through the insertion portion of the guide tube so that the spherical portion becomes the second rope groove. A second amount of wear of the second rope is indicated by the relative position of the end portion on the first reference surface side of the guide tube and the end portion on the other end side of the gauge rod when the contact is made. An elevator sheave groove wear amount measuring jig comprising an indicator portion. In the elevator sheave groove wear amount measuring jig according to claim 2,
An elevator sheave groove wear amount measuring jig for an elevator comprising a fixing portion for fixing the gauge rod to the guide tube in a state where the gauge rod is inserted through the insertion portion of the guide tube. .

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