JP5130645B2 - Elevator sheave equipment - Google Patents

Description

  The present invention relates to an elevator sheave device.

In a conventional elevator sheave device, a deflecting wheel, which is one of sheaves, is attached to a support beam separate from the hoisting machine (see, for example, Patent Document 1). The specific attachment method is shown in FIGS.
First, the attachment method shown in FIGS. 19 and 20 will be described. In the figure, a pair of substantially U-shaped beams 1001 composed of an upper side and a lower side are arranged back to back at a predetermined interval, two holes 1001e are provided in the lower side 1001a of each beam 1001, and a U bolt 1003 is attached from below. It is fixed by a nut 1007 and an oblique washer 1005a through a misalignment prevention seat 1005 that is welded and fixed to the lower side 1001a of the beam 1001 through the hole 1001e, and the fixed shafts 1000a on both sides of the deflector wheel 1000 are fixed by the U bolt 1003. doing. A misalignment prevention seat 1005 is welded and fixed to the beam 1001 to support a component force applied to the main rope 10 wound around the deflector wheel 1000. That is, since the sliding force is applied from the component force applied to the main rope 10, it is dealt with by welding the misalignment prevention seat 1005.
Next, another mounting method shown in FIGS. 21 and 22 will be described. In the figure, a pair of substantially U-shaped beams 1001 composed of an upper side and a lower side are arranged back to back at a predetermined interval, and three holes 1001e are provided in the lower side 1001a of each beam 1001, and bolts 1011 are provided from below. Through a hole 1001e, and a pair of mounting plates 1009 are mounted and fixed so as to face each other via a nut 1007 and an oblique washer 1005a. Insertion holes 1009a for fitting the fixed shafts 1000a on both sides of the deflector wheel 1000 are provided on the vertical sides of the pair of mounting plates 1009 facing each other, and the fixed shafts 1000a on both sides of the deflector wheel 1000 are fitted in the fit holes 1009a. Further, a retaining plate 1013 is fixed to the vertical side by a bolt 1015.
An example in which the method for attaching the sheave device as described above is applied to a machine room-less elevator is shown in FIGS. In the figure, a beam 11 is attached to the top of the hoistway 4, and a hoisting machine 7 and a rotatable baffle 9 are attached to the beam 11. A car in which a main rope 10 is wound around a sheave 8 and a deflector 9 of the hoisting machine 7, one end of the main rope 10 is fixed to the counterweight 3, and the other end of the main rope 10 is attached to the outer periphery of the car 1. It is fixed to the frame 2.

  Next, as another example of a conventional elevator sheave device, a return wheel that is a part of a sheave is attached to the top of a hoistway (see, for example, Patent Document 2). A specific method of attaching the return wheel is shown in FIGS. In the figure, mounting seats 1100 with screw holes are welded and fixed in advance to the respective concave portions on both sides of a beam 1001 made of H-shaped steel. Then, a pair of mounting plates 1102 are fixed to the mounting seats 1100 with screw holes fixed on both sides of the beam 1001 at the installation site. The pair of mounting plates 1102 are provided with fitting holes 1102e for fitting the fixed shafts 1000a on both sides of the return wheel 1000, and the fixed shafts 1000a on both sides of the return wheel 1000 are fitted into the fitting holes 1102e, and the retaining plates 1102e are further secured. The prevention plate 1013 is fixed by a bolt 1015.

  That is, according to the conventional sheave device for an elevator, the sheave or return wheel as a sheave is configured to be attached in parallel to the beam in the longitudinal direction of the beam.

Japanese Patent Laid-Open No. 61-24884 JP 2005-178972 A

  However, when the elevator sheave device as described above is applied to a machine room-less elevator, a large number of devices are arranged in the hoistway. A car or a return wheel must be attached, and there is a problem that it is difficult to attach a sheave such as a deflector or a return wheel in parallel to the longitudinal direction of the beam. In addition, when the distance between the beam and the sheave is large, it may not be attached.

  The present invention has been made to solve the above-described problems, and provides an elevator sheave device that can attach a sheave such as a deflector or a return wheel at an arbitrary angle or a position away from a beam. It is to provide.

An elevator sheave device according to the present invention includes a sheave having a beam provided in a hoistway, a fixed portion connected to the beam and a rotating portion around which a main rope is wound, and a fixed portion of the sheave. And a pivot mechanism that pivots in a horizontal direction while maintaining a vertical posture of the sheave. The beam has a horizontal upper side, a horizontal lower side, and these horizontal upper and lower sides. It consists of an H-shaped steel with a vertical side that connects the parts at the center, and has a horizontal extension that extends horizontally outwardly on a portion of the horizontal upper side on the side opposite to the sheave. The mechanism includes a first member connected and fixed to a fixed portion of the sheave, a second member having one end rotatably attached to the first member and the other end connected to the beam, and the other end of the second member. set between is fixed, a fixed L-shaped member attached to the horizontal extending portion of the beam, the first member and the second member Is, while rotating the first member in the horizontal direction by a predetermined operation, and a rotation fixing means for fixing in the desired position, rotation fixing means are upright on one side of the second member, a vertical projection piece threaded, one end on one side toward the inner central portion of the first member is rotatably fixed, and an adjustment rod having a threaded portion to which the other end is screwed to the vertical projection piece In the state where the sheave is maintained in the vertical posture, the adjustment rod is adjusted so that the distance between one end closer to one side of the inner central portion of the first member and the vertical projection piece of the second member at the other end is shortened. When rotated, the first member fixed to the sheave rotates in the direction approaching the vertical projection piece side, and the sheave rotates in the direction approaching the vertical projection piece side with the center of the sheave as an axis. Adjust the adjustment rod in the opposite direction so that the distance between one end closer to one side of the central part and the protruding piece of the second member at the other end becomes longer Rotation, in which the first member fixed to the sheave is rotated in a direction away from the vertical projection on one side, sheaves the center of the sheave as the shaft is rotated in a direction away from the vertical projection on one side.

  According to this invention, the sheave can be adjusted to an arbitrary angle with respect to the beam by rotating the rotation mechanism. Therefore, the sheave can be attached in parallel to the longitudinal direction of the beam. Therefore, even in the sheave of the machine room-less elevator, there is an effect that the sheave can be easily attached while avoiding each device attached in the hoistway. In addition, there is an effect that the rotation mechanism and the interval adjustment mechanism can be easily configured.

Embodiment 1.
1 is a perspective view showing an elevator sheave device according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view showing a main part of the elevator sheave device according to Embodiment 1 of the present invention. FIG. 4 is a plan view showing a partial cross section of the elevator sheave device according to Embodiment 1 of the present invention, FIG. 4 is a cross-sectional view taken along line AA in FIG. 3, and FIG. 5 is a detail showing part B in FIG. FIG.

In the figure, 101 is a beam made of H-shaped steel having an upper side, a lower side, and a vertical side connecting these upper and lower sides at the center, and a trapezoidal part 101c extending horizontally in a part of the upper side. have. The elevator sheave device 100 is connected to the beam 101 having the trapezoidal portion 101c, the main rope 105 is wound around, and the sheave 103 having a rotating portion 103a and a fixing portion 103c provided at the center portion. And a rotating mechanism 110 that is connected to the fixing portion 103c of the sheave 103 while maintaining the vertical posture of the sheave 103 and that rotates in the horizontal direction.
The rotating mechanism 110 has a U-shaped concave shape, a first member 112 in which a U-shaped bottom surface portion 112 a is connected and fixed to a fixing portion 103 c of the sheave 103, and a U-shaped concave shape that includes the first member 112. A portion 114a is provided at one end, the first member 112 is rotatably attached, the other end is fixed to the other end surface of the second member 114, and a columnar second member 114 connected to the beam 101. The L-shaped member 116 attached and fixed to the trapezoidal portion 101c of the beam 101 with a bolt 118 and a nut 130, and the flat plate fixed to the bottom surface of the second member 114 and fixed to the upper side portion of the beam 101 with the bolt 118. 119. In addition, 119b is a stop seat of the flat plate 119, 119c is a screw seat of the flat plate 119, 128 is a washer, and 207 is a bolt.
Further, the rotating mechanism 110 has one end rotatably fixed to the inner central portion of the first member 112 and the other end is a protruding piece 114c that is threaded and is erected on the side surface of the second member 114. And an adjusting rod 121 having a threaded portion. Here, the rotation fixing means of the sheave device 100 includes an adjusting rod 121 and a protruding piece 114c.

Next, the operation of the elevator sheave device configured as described above will be described.
In a state where the sheave 103 is maintained in the vertical posture, the adjusting rod 121 is rotated so that the distance between one end of the inner central portion of the first member 112 and the protruding piece 114c of the second member 114 at the other end is shortened. Then, the first member 112 fixed to the sheave 103 rotates, and the sheave 103 rotates in the direction of the arrow in FIG. 1 about the center of the sheave 103.
On the other hand, with the vertical position of the sheave 103 maintained, the adjustment rod 121 is adjusted so that the distance between one end of the inner central portion of the first member 112 and the protruding piece 114c of the second member 114 at the other end becomes longer. When rotating in the direction opposite to the above, the first member 112 fixed to the sheave 103 rotates, and the sheave 103 rotates in the direction opposite to the arrow in FIG.

  Thereby, by rotating the adjustment rod 121 of the rotation mechanism 110, the sheave 103 can be fixed after being adjusted to an arbitrary angle with respect to the longitudinal direction of the beam 101. Therefore, even if it is difficult to attach the sheave 103 in parallel to the longitudinal direction of the beam 101, the sheave 103 can be moved to the longitudinal direction of the beam 101 by rotating the adjusting rod 121 of the rotation mechanism 110. It is possible to mount and fix in parallel to the direction. Therefore, in the sheave device of the machine room-less elevator, there is an effect that it is easy to attach the sheave while avoiding each device attached in the hoistway.

Embodiment 2.
6 is a perspective view showing an elevator sheave device according to Embodiment 2 of the present invention, FIG. 7 is a side view showing a partial cross section of the elevator sheave device according to Embodiment 2 of the present invention, and FIG. FIG. 9 is an exploded perspective view showing a main part of the elevator sheave device according to the second embodiment of the invention, FIG. 9 is a sectional view taken along the line CC in FIG. 7, and FIG. 10 is taken along the line DD in FIG. FIG. 11 is an exploded perspective view of FIG. 10. In the figure, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

In the figure, the elevator sheave device 200 is connected to the fixed portion 103c of the sheave 103 while maintaining the vertical posture of the sheave 103, and adjusts the distance between the ends of the beams 101 arranged in the front and rear directions. A gap adjusting mechanism 210 is provided.
The interval adjusting mechanism 210 is a U-shaped concave shape, and a U-shaped concave portion including the first member 112 including a first member 112 in which a U-shaped bottom surface portion 112 a is connected and fixed to a fixing portion 103 c of the sheave 103. A first cylindrical member 214 having a notch 214e connected to the beam 101, and being slightly smaller than the first cylindrical member 214; The first cylindrical member 214 includes a second cylindrical member 202 that slides on the inner surface of the cylindrical member 214 and is connected and fixed to the beam 101.
The first tubular member 214 is fixed to a plate-shaped base plate 205, and the base plate 205 is screwed to the nut 130 via a bolt 118 and a washer 128 to be fixed to the upper side of the beam 101. In addition, the base plate 205 is fixed to the first cylindrical member 214 together with the retaining seat 119b and the screw seat 119c, and is fixed to the base plate 205 with a bolt 207, and the longitudinal position and angle of the first cylindrical member 214 can be arbitrarily adjusted. It is. When the position is determined, the bolt 118 is inserted into the long hole of the base plate 205 and fixed to the beam 101.
The second cylindrical member 202 has a notch 202e on the bottom surface, and is fixed together with a blade on the upper side of the beam 101 with a bottom portion sandwiched between a flat plate 212 with a screw hole and a clip-shaped receiving plate 213. The screw hole flat plate 212 and the clip-shaped receiving plate 213 are fixed by bolts 215.
The cylindrical portion fixing means for fixing the first cylindrical member 214 and the second cylindrical member 202 includes a plate-shaped first fixing plate 206 having a screw hole 206e and a plate-shaped second fixing plate 208 having a hole 208e. The first cylindrical member 214 and the second cylindrical member 202 are sandwiched between the bolts 207 through the holes 208e of the second fixing plate 208, and the screw portions of the bolts 207 are screwed into the screw holes 206e of the first fixing plate 206. It is fixed by doing.

Next, the operation of the elevator sheave device configured as described above will be described.
In a state where the sheave 103 is maintained in the vertical posture, the first tubular member 214 is moved while sliding while holding the second tubular member 202 toward an appropriate position in the direction of the arrow in FIG. By holding the first cylindrical member 214 and the second cylindrical member 202 between the fixing plate 206 and the second fixing plate 208, passing the bolt 207 through the hole 208e, and screwing the screw portion of the bolt 207 into the screw hole 206e. The first tubular member 214 and the second tubular member 202 are fixed.

  Accordingly, the first tubular member 214 is moved while sliding to an appropriate position, and the first tubular member 214 and the second tubular member 202 are fixed, so that the sheave 103 can be arbitrarily set with respect to the beam 101. The position can be adjusted. Although not shown, the rotation mechanism 110 can be turned upside down, that is, suspended below the beam 101. Therefore, the sheave 103 can be attached in parallel to the longitudinal direction of the beam 101. Therefore, in the sheave device of the machine room-less elevator, there is an effect that it is easy to attach the sheave while avoiding each device attached in the hoistway. Since the clamping means for clamping the second cylindrical member 202 to the blade portion of the beam 101 is provided, there is an effect that the second cylindrical member can be fixed to the beam regardless of the size of the beam.

Embodiment 3.
FIG. 12 is a side view showing a partial cross section of an elevator sheave device according to Embodiment 3 of the present invention, and FIG. 13 is a plan view showing the main part of the elevator sheave device according to Embodiment 3 of the present invention. 14 is an exploded perspective view showing the main part, and FIG. 15 is an explanatory view showing a case where the height position level of the beam is greatly different. In the figure, the same or corresponding parts as those in the second embodiment are denoted by the same reference numerals and description thereof is omitted.

In the first embodiment, the case where the beams 101 arranged at the front and rear are at the same height position level is shown. However, in the third embodiment, the height position level of the rear beam 101 is the previous height level. This is a case where the height position level of the beam 101 is greatly different. As shown in the figure, a threaded seat 202a is welded to the end of the second cylindrical member 202, and an L-shaped mounting bracket 211 with a long hole is fixed to the threaded seat 202a with a bolt 207. Thus, the upper side of the rear beam 101 is sandwiched and fastened with bolts 207.
Thereby, even when the height level of the beam 101 is different, it can be coped with by selecting the screw hole of the threaded seat 202a and the long hole of the L-shaped attachment metal 211 with the long hole.

Embodiment 4.
FIG. 16 is a perspective view showing an elevator sheave device according to Embodiment 4 of the present invention, and FIG. 17 is an exploded perspective view showing essential parts of the elevator sheave device according to Embodiment 4 of the present invention. These are sectional drawings which show the sheave device of the elevator in Embodiment 4 of this invention.

  In the fourth embodiment, the elevator sheave device 300 supports the shaft of the fixing portion 103 c of the sheave 103 and supports as a third member that has a U-shaped concave shape that houses a part of the sheave 103. A member 305 and a disk-shaped rotating member 307 that fixes the U-shaped bottom of the supporting member 305 are provided. The rotating member 307 is formed to be rotatable by inserting a column portion and a coupling member 313 having flanges at both upper and lower end portions of the column portion into a hole 309e of a flat plate-shaped square base 309. The ends of the rotating member 307 are fixed to the square base 309 with bolts 315, and a pair of left and right holding members 311 and 311 for fixing the ends are provided. Here, the holding members 311 and 311 and the bolts 315 constitute fixing means. 317 is a bolt, 319 is a washer, and 320 is a nut.

The operation of the elevator sheave device configured as described above will be described.
With the vertical posture of the sheave 103 maintained, the restraint by the bolt 315 is loosened, the sheave 103 is rotated in the direction of the arrow in FIG. 16, and the sheave 103 is restrained by the holding members 311 and 311 at a desired position. To fix.

  As a result, the sheave 103 is rotated by the rotation mechanism including the rotation member 307 and the coupling member 313 and is fixed by the holding members 311 and 311, thereby adjusting the sheave 103 to an arbitrary angle with respect to the beam 101. be able to. Although not shown, the rotation mechanism including the rotation member 307 and the coupling member 313 can be turned upside down, that is, suspended below the beam 101. Therefore, the sheave 103 can be attached in parallel to the longitudinal direction of the beam 101. Therefore, in the sheave device of the machine room-less elevator, there is an effect that it is easy to attach the sheave while avoiding each device attached in the hoistway.

1 is a perspective view showing an elevator sheave device according to Embodiment 1 of the present invention. It is a perspective view which decomposes | disassembles and shows the principal part of the sheave device of the elevator in Embodiment 1 of this invention. It is a top view which shows the sheave device of the elevator in Embodiment 1 of this invention in a partial cross section. It is sectional drawing along the AA line of FIG. FIG. 5 is a detailed view showing a part B of FIG. 4. It is a perspective view which shows the sheave device of the elevator in Embodiment 2 of this invention. It is a side view which shows the sheave device of the elevator in Embodiment 2 of this invention in a partial cross section. It is a perspective view which decomposes | disassembles and shows the principal part of the sheave device of the elevator in Embodiment 2 of this invention. It is sectional drawing along CC line of FIG. It is sectional drawing along the DD line of FIG. It is a perspective view which decomposes | disassembles and shows FIG. It is a side view which shows the sheave device of the elevator in Embodiment 3 of this invention in a partial cross section. It is a top view which shows the principal part of the sheave device of the elevator in Embodiment 3 of this invention. It is a disassembled perspective view which shows the principal part. It is explanatory drawing which shows the case where the height position level of a beam differs greatly. It is a perspective view which shows the sheave device of the elevator in Embodiment 4 of this invention. It is a perspective view which decomposes | disassembles and shows the principal part of the elevator sheave apparatus in Embodiment 4 of this invention. It is sectional drawing which shows the sheave device of the elevator in Embodiment 4 of this invention. It is a side view which shows an example of the conventional sheave device of an elevator. It is a perspective view which shows an example of the conventional sheave device of an elevator. It is a side view which shows the other example of the sheave device of the conventional elevator. It is a perspective view which shows the other example of the conventional sheave device of an elevator. It is a perspective view which shows the case where the conventional sheave device is applied to a machine room-less elevator. It is a top view which shows the case where the conventional sheave device is applied to a machine room-less elevator. It is the front view and side view which show the other different example of the conventional sheave device of an elevator. It is a disassembled perspective view which shows the other different example of the conventional sheave device of an elevator.

Explanation of symbols

100 sheave device 101 beam 101c trapezoidal portion 103 sheave 103a rotating portion 103c fixed portion 110 rotating mechanism 112 first member 114 second member 114c protruding piece 116 L-shaped member 119 flat plate 121 adjusting rod 200 sheave device 210 interval adjusting mechanism 214 1st cylindrical member 202 2nd cylindrical member 202a Seat 205 with a screw | thread base plate 206 1st fixing plate 208 2nd fixing plate 211 L-shaped attachment metal 300 with a long hole Sheave device 305 Support member (3rd member)
307 Rotating member 309 Square base 313 Connecting member 311 Holding member

Claims (1)

A beam provided in the hoistway;
A sheave having a fixed portion coupled to the beam and a rotating portion around which the main rope is wound;
A rotation mechanism that is provided so as to connect the fixed portion of the sheave and the beam, and that rotates in a horizontal direction while maintaining a vertical posture of the sheave;
The beam is made of H-shaped steel having a horizontal upper side portion, a horizontal lower side portion, and a vertical side portion connecting these horizontal upper and lower side portions at a central portion, and is formed on a part of the horizontal upper side portion on the side opposite to the sheave. has a horizontal extending portion extending in the horizontal direction toward the outside,
The rotating mechanism includes a first member connected and fixed to a fixed portion of the sheave, a second member having one end rotatably attached to the first member and the other end connected to the beam, An L-shaped member fixed to the other end of the second member and attached and fixed to the horizontal extension of the beam, and provided between the first member and the second member, and by a predetermined operation A rotation fixing means for rotating the first member in a horizontal direction and fixing the first member at a desired position;
The rotation fixing means is erected on one side surface of the second member, and is fixed so that one end of the vertical projection piece threaded and one side of the inner central portion of the first member is rotatable. An adjustment rod having a threaded portion screwed into the vertical protrusion piece, and the other end of the first member closer to one side and the other while maintaining the vertical posture of the sheave When the adjustment rod is rotated so that the distance between the second member at the end and the vertical projection piece is shortened, the first member fixed to the sheave rotates in the direction approaching the vertical projection piece side, and the sheave The sheave rotates in the direction approaching the vertical projection piece side around the center of the center, and the distance between one end closer to one side of the inner central portion of the first member and the projection piece of the second member at the other end becomes longer. When the adjusting rod is rotated in the opposite direction, the first member fixed to the sheave rotates in a direction away from the vertical projection piece side. Sheave device for an elevator which sheaves the center of the sheave as an axis is characterized in that it rotated away from one side the vertical projection.

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