JP6452845B2 - Rotating machine and elevator hoisting machine - Google Patents

Description

  The present invention relates to a rotary machine in which a rotating body is rotatably supported by a support member, and an elevator hoist.

  Conventionally, in order to prevent the lubricating oil in the elevator hoisting machine from being transmitted to the outside through the worm shaft, an elevator hoisting machine in which a rubber disc slinger is fitted to the outer peripheral surface of the worm shaft is used. An oil sealing mechanism is known (see Patent Document 1).

Japanese Patent Laid-Open No. 50-22916

  However, in such a conventional oil seal mechanism for an elevator hoist, it is necessary to prepare a slinger having an inner diameter that matches the outer diameter of the worm shaft. Therefore, in order to fit the slinger to each of a plurality of worm shafts having different outer diameters, it is necessary to prepare a plurality of types of slinger having inner diameters that match the outer diameter of each worm shaft. Therefore, the management of the slinger becomes complicated, and it takes time to manufacture the oil sealing mechanism. For example, when a rubber slinger is a molded product, it is necessary to manufacture each type of slinger with a plurality of types of molds having different sizes. Therefore, the manufacturing cost of the oil sealing mechanism also increases.

  The present invention has been made to solve the above-described problems, and provides a rotating machine and an elevator hoisting machine that can be easily manufactured and can reduce manufacturing costs. For the purpose.

  A rotating machine and an elevator hoist according to the present invention include a supporting member, a rotating body that is rotatably supported by the supporting member, and a partition member that is disposed along the circumferential direction of the rotating body and surrounds the rotating body And at least a part of the partition member is an expandable bellows part in which a mountain fold part and a valley fold part are repeated in the circumferential direction.

  According to the rotating machine and the elevator hoist according to the present invention, the partition member can be easily arranged around the rotating body by adjusting the expansion and contraction of the bellows part. Thereby, manufacture of a rotary machine and an elevator hoist can be made easy, and reduction of the manufacturing cost of a rotary machine and an elevator hoist can be achieved.

It is a block diagram which shows the elevator by Embodiment 1 of this invention. It is a partially broken side view which shows the winding machine of FIG. It is an enlarged view which expands and shows the range of the partition member and cover of the hoisting machine of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is a perspective view which shows the partition member attached to the rotating shaft of FIG. It is an expansion perspective view which shows the attachment part of the partition member with respect to the rotating shaft of FIG. It is a perspective view which shows the state which expand | deployed the partition member of FIG. It is a side view which shows the mode of the lubricant adhering to the outer peripheral surface of a rotating shaft when the rotating shaft and partition member of FIG. 3 are rotating. It is sectional drawing which shows the winding machine for elevators by Embodiment 2 of this invention. It is an enlarged view which expands and shows the range of the partition member and cover of the hoisting machine of FIG. It is a side view which shows the mode of the lubricant splashed from the suspension body when the drive sheave and the partition member of FIG. 10 are rotating. It is principal part sectional drawing which shows the winding machine for elevators by Embodiment 3 of this invention.

Preferred embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing an elevator according to Embodiment 1 of the present invention. In the figure, a car 2 and a counterweight 3 are provided in the hoistway 1 so as to be able to move up and down. A machine room 4 is provided in the upper part of the hoistway 1. The machine room 4 is provided with an elevator hoisting machine (hereinafter simply referred to as “hoisting machine”) 5 and a deflector 6 which are rotating machines.

  A plurality of suspension bodies 7, which are long objects, are wound around the hoisting machine 5 and the deflecting wheel 6. The car 2 and the counterweight 3 are suspended in the hoistway 1 by a plurality of suspension bodies 7. As the suspension body 7, for example, a rope or a belt is used.

  FIG. 2 is a partially broken side view showing the hoisting machine 5 of FIG. The hoist 5 includes a pair of support members 8 that are disposed apart from each other in the horizontal direction, a rotary shaft 9 that is a rotating body that is rotatably supported by the pair of support members 8, and rotates the rotary shaft 9. And a driving sheave 11 that is fixed to the rotating shaft 9 and a brake device 12 that brakes the rotation of the rotating shaft 9.

  The pair of support members 8 are provided with through holes 13 through which the rotation shaft 9 passes. In each through hole 13, a bearing 14 and a seal member 15 that covers the bearing 14 on the outer side in the axial direction than the bearing 14 as viewed from the motor 10 are fitted. The bearing 14 contains a lubricant. As the lubricant for the bearing 14, for example, oil or grease is used. The rotary shaft 9 is horizontally supported by the support member 8 via the bearing 14 while being passed through the through hole 13. One end and the other end of the rotating shaft 9 protrude from the support members 8 outward in the axial direction as viewed from the motor 10.

  The motor 10 is supported by each support member 8 while being sandwiched between the pair of support members 8. The motor 10 includes a cylindrical stator fixed to the pair of support members 8 and a rotor disposed inside the stator. The rotor is fixed to the rotating shaft 9. Thereby, the rotor rotates integrally with the rotating shaft 9 with respect to the stator by supplying power to the stator.

  The drive sheave 11 is fixed to one end of the rotating shaft 9. Thereby, the driving sheave 11 rotates integrally with the rotating shaft 9. A plurality of suspension grooves 16 are provided on the outer periphery of the drive sheave 11 along the circumferential direction of the drive sheave 11. Each suspension body 7 wound around the drive sheave 11 is inserted into each suspension body groove 16. The car 2 and the counterweight 3 move up and down in the hoistway 1 by the rotation of the driving sheave 11.

  The brake device 12 includes a brake disc 17 fixed to the other end portion of the rotating shaft 9 and a brake device body 18 attached to one support member 8. The brake disc 17 rotates integrally with the rotary shaft 9. The brake device main body 18 includes a plurality of brake shoes 19 that come into contact with the braking surface of the brake disc 17 or leave the brake disc 17. In the hoisting machine 5, braking force is applied to the rotating shaft 9, the drive sheave 11, and the brake disc 17 by the brake shoe 19 coming into contact with the braking surface of the brake disc 17. Further, in the hoisting machine 5, when the brake shoe 19 is separated from the brake disk 17, the state where the braking force is applied to the rotating shaft 9, the drive sheave 11, and the brake disk 17 is released.

  Here, when the rotating shaft 9 rotates with respect to the support member 8, the liquid lubricant leaking from the bearing 14 may be transmitted along the outer peripheral surface of the rotating shaft 9 toward the brake disk 17. When the lubricant from the bearing 14 adheres to the braking surface of the brake disc 17, the friction coefficient between the brake disc 17 and the brake shoe 19 decreases, and the braking capability of the brake device 12 extremely decreases.

  The hoisting machine 5 is arranged on the radially outer side of the partition member 21 and the partition member 21 for preventing the lubricant from the bearing 14 from reaching the brake disc 17 in order to prevent the brake capacity of the brake device 12 from being lowered. The cover 22 is further provided. Below the cover 22, a partition member 21 and a tray 23 that receives the liquid lubricant falling from the cover 22 are arranged.

  FIG. 3 is an enlarged view showing an enlarged range of the partition member 21 and the cover 22 of the hoisting machine 5 of FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. A groove 24 along the circumferential direction of the rotary shaft 9 is provided over the entire circumference of the rotary shaft 9 in the outer peripheral portion of the rotary shaft 9 between the bearing 14 and the brake disk 17. In this example, a groove 24 is provided on the outer peripheral portion of the portion of the rotary shaft 9 between the seal member 15 and the brake disk 17.

  The partition member 21 surrounds the rotation shaft 9 along the groove 24. The partition member 21 includes an overlapping portion 21 a that overlaps the bottom surface of the groove 24, and a partition member main body portion 21 b that extends from the overlapping portion 21 a to the outside in the radial direction of the rotating shaft 9.

  The shape of the partition member 21 is an annular shape with the overlapping portion 21a inside. The partition member 21 is attached to the rotating shaft 9 with the overlapping portion 21 a of the partition member 21 inserted into the groove 24. The shape of the partition member main body portion 21 b is a shape that spreads in the radial direction of the rotating shaft 9. In this example, as shown in FIG. 4, the outer shape of the partition member main body 21 b has a circular shape larger than the diameter of the rotating shaft 9.

  The overlapping portion 21 a of the partition member 21 is fastened to the rotary shaft 9 by a fastener 25 along the groove 24. The partition member 21 is fixed to the rotating shaft 9 in a state where the overlapping portion 21 a is fastened to the rotating shaft 9 with a fastener 25. As the fastener 25, for example, a binding band, a hose band, a wire or the like is used.

  FIG. 5 is a perspective view showing the partition member 21 attached to the rotating shaft 9 of FIG. FIG. 6 is an enlarged perspective view showing a portion where the partition member 21 is attached to the rotating shaft 9 of FIG. Further, FIG. 7 is a perspective view showing a state in which the partition member 21 of FIG. 5 is developed. The partition member 21 is configured by a bendable band-shaped member. As the partition member 21, for example, a rubber sheet, a resin film, paper, an aluminum foil, or the like is used. In addition, at least a part of the partition member 21 is a bellows portion 213 that can be expanded and contracted in which a mountain fold portion 211 and a valley fold portion 212 are repeated in the circumferential direction of the rotating shaft 9. The bellows portion 213 extends when the mountain fold portion 211 and the valley fold portion 212 expand, and contracts when the mountain fold portion 211 and the valley fold portion 212 narrow. In this example, the entire circumferential direction of the partition member 21 is a bellows part 213. Adjustment of each length of the outer peripheral part and inner peripheral part of the partition member 21 is performed by expansion and contraction of the bellows part 213.

  The partition member 21 is produced by bending one edge portion of the belt-like member on which the bellows portion 213 is formed to make the cross-section of the belt-like member L-shaped. In the partition member 21, one bent edge of the belt-shaped member is an overlapping portion 21 a, and the remaining portion of the belt-shaped member is a partition member main body portion 21 b.

  The extension amount of the bellows part 213 of the partition member main body part 21b is the smallest in the overlapping part 21a located in the inner peripheral part of the partition member main body part 21b, and becomes larger as it approaches the outer peripheral part of the partition member main body part 21b.

  The inner surface of the groove 24 is a plane orthogonal to the outer peripheral surface of the rotating shaft 9. As shown in FIG. 6, the partition member 21 is attached to the rotary shaft 9 in a state where the inner peripheral portion of the partition member main body portion 21 b is in contact with the inner surface of the groove 24. In this example, the partition member 21 is attached to the rotating shaft 9 in a state where the partition member main body 21 b is in contact with the inner surface of the groove 24 near the bearing 14. Thereby, in the partition member 21, the state in which the partition member main body portion 21 b is orthogonal to the outer peripheral surface of the rotating shaft 9 is maintained.

  As shown in FIG. 4, the cover 22 is disposed so as to surround the partition member 21. The cover 22 includes an upper cover part 221 disposed around the upper part of the partition member 21 and a lower cover part 222 disposed around the lower part of the partition member 21. As shown in FIG. 4, the upper cover portion 221 and the lower cover portion 222 are connected to each other by a plurality of screws 223. Each of the upper cover portion 221 and the lower cover portion 222 is formed by bending a metal plate. Furthermore, each of the upper cover part 221 and the lower cover part 222 is attached to the support member 8 via a fixture 224 as shown in FIG. The fixture 224 is attached to the support member 8 by a plurality of bolts (not shown).

  The upper cover part 221 has a space 225 that is open at the bottom. The outer periphery of the upper part of the partition member 21 is inserted into the space 225 from below the upper cover part 221. Thereby, the outer peripheral part of the upper part of the partition member 21 is covered with the upper cover part 221.

  The lower cover part 222 is formed with a pair of inclined grooves 226 that are inclined with respect to the horizontal plane. The outer periphery of the lower part of the partition member 21 is inserted into each of the pair of inclined grooves 226. Thereby, the outer peripheral part of the lower part of the partition member 21 is covered with the lower cover part 222.

  As shown in FIG. 4, the horizontal distance between the pair of inclined grooves 226 is continuously reduced from the upper part to the lower part of the lower cover part 222. In this example, when the lower cover portion 222 is viewed along the axis of the rotating shaft 9, the pair of inclined grooves 226 are disposed on both sides of the vertical line passing through the axis of the rotating shaft 9, and the upper portion of the lower cover portion 222 is A pair of inclined grooves 226 incline toward the vertical line from the bottom to the bottom.

  The saucer 23 is disposed below the space between the lower ends of the pair of inclined grooves 226. As a result, the liquid lubricant flowing through the inclined grooves 226 is guided to the common receiving tray 23. Further, the tray 23 is placed on a support 227 fixed to the support member 8 as shown in FIG. The support tool 227 is fixed to the support member 8 by a plurality of bolts (not shown).

  Next, a procedure for attaching the partition member 21 to the rotating shaft 9 will be described. First, the overlapping portion 21 a of the partition member 21 is wound around the bottom surface of the groove 24 while adjusting the expansion and contraction of the bellows portion 213 of the partition member 21 according to the diameter of the rotating shaft 9. Thereby, the bellows part 213 of the outer peripheral part of the partition member main-body part 21b is extended, the partition member 21 spreads in the circumferential direction of the rotating shaft 9, and the partition member 21 will be in the state surrounding the perimeter of the rotating shaft 9. At this time, by pressing the inner peripheral portion of the partition member main body portion 21 b against the inner side surface of the groove 24, the state in which the partition member main body portion 21 b stands with respect to the outer peripheral surface of the rotary shaft 9 is maintained.

  Thereafter, the fastener 25 is overlapped on the overlap portion 21a from the outside in the radial direction, and the fastener 25 is tightened together with the overlap portion 21a in a state where the overlap portion 21a is sandwiched between the bottom surface of the groove 24 and the fastener 25. Thereby, the overlapping portion 21 a is fixed in the groove 24, and the partition member 21 is fixed to the rotating shaft 9. In this way, the partition member 21 is attached to the rotating shaft 9.

  Thereafter, the fixture 224 to which the upper cover portion 221 and the lower cover portion 222 are fixed is attached to the support member 8 with bolts, and the support fixture 227 is attached to the support member 8 with bolts, and the tray 23 is attached to the support fixture 227. Put it on.

  Next, the operation when the liquid lubricant leaks from the bearing 14 will be described. FIG. 8 is a side view showing the state of the lubricant adhering to the outer peripheral surface of the rotating shaft 9 when the rotating shaft 9 and the partition member 21 of FIG. 3 are rotating. When the liquid lubricant leaks from the bearing 14, at least a part of the lubricant is transmitted to the partition member 21 as the liquid droplet 31 by the rotation of the rotation shaft 9 on the outer peripheral surface of the rotation shaft 9. The droplet 31 that has reached the partition member 21 reaches the outer peripheral portion of the partition member 21 by being transmitted radially outward through the partition member 21 by the centrifugal force of the partition member 21 that rotates integrally with the rotating shaft 9. The droplet 31 that has reached the outer periphery of the partition member 21 is blown from the partition member 21 by the centrifugal force of the partition member 21 and reaches the inner surface of the cover 22. The droplet 31 that has reached the inner surface of the cover 22 is guided to the tray 23 by the pair of inclined grooves 226 and is collected in the tray 23. Thereby, the lubricant transmitted through the outer peripheral surface of the rotating shaft 9 is guided to the tray 23 by the partition member 21 and the cover 22 without reaching the brake disk 17.

  In such a hoisting machine 5, since the entire partition member 21 is an expandable / contracted bellows part 213, the partition member 21 can be attached to the rotary shaft 9 while expanding / contracting the bellows part 213 of the partition member 21. . Accordingly, the partition member 21 can be easily attached to each of the plurality of rotating shafts 9 having different diameters by adjusting the expansion and contraction of the bellows part 213, and the manufacture of the hoisting machine 5 is facilitated. Can do. In addition, since it is not necessary to individually manufacture a plurality of types of partition members 21 corresponding to the plurality of rotating shafts 9 having different diameters, the manufacturing cost of the partition member 21 can be reduced, and the hoisting machine 5 The manufacturing cost can be reduced.

  In addition, since the cover 22 is disposed outside the partition member 21 in the radial direction, the lubricant can be prevented from being scattered around the partition member 21. As a result, it is possible to more reliably prevent the lubricant from reaching a protection target (for example, the brake device 12) that needs to be protected from the lubricant.

  In addition, since the partition member 21 is attached to the outer peripheral portion of the rotating shaft 9, the movement of the liquid lubricant that travels on the outer peripheral surface of the rotating shaft 9 can be more reliably stopped by the partition member 21. Thereby, it can prevent more reliably that a lubricant reaches the protection object (for example, brake device 12 grade | etc.,) With respect to a lubricant.

  Further, the overlapping portion 21 a of the partition member 21 is fastened to the rotary shaft 9 by the fastener 25 in a state where it overlaps the bottom surface of the groove 24 provided on the outer peripheral portion of the rotary shaft 9. On the other hand, the partition member 21 can be made difficult to shift in the axial direction of the rotary shaft 9. In addition, the partition member main body 21 b can be arranged along the inner surface of the groove 24, and the partition member main body 21 b can be made difficult to fall with respect to the outer peripheral surface of the rotating shaft 9. Thereby, the partition member 21 can be more reliably attached to the rotating shaft 9.

Embodiment 2. FIG.
FIG. 9 is a sectional view showing an elevator hoist according to Embodiment 2 of the present invention. The hoisting machine 5 is a thin hoisting machine having a radial dimension larger than an axial dimension. The hoisting machine 5 includes a support member 8, a rotation support portion 42 that is a rotating body rotatably supported by the support member 8, a motor 10 that generates a driving force for rotating the rotation support portion 42, and A cylindrical drive sheave 11 fixed to the rotation support portion 42 and a brake device 12 that brakes the rotation of the rotation support portion 42 are provided.

  The support member 8 includes a disk-shaped support member main body 81 and a support shaft 82 that protrudes horizontally from the center of the support member main body 81. The rotation support part 42 is rotatably supported by the support shaft 82.

  A through hole 43 is provided at the center of the rotation support portion 42. A plurality of bearings 14 are fitted in the through holes 43. The rotation support portion 42 is supported by the support shaft 82 via the bearings 14 with the support shaft 82 inserted into the through hole 43.

  The motor 10 is disposed on the support member main body 81 side of the rotation support portion 42 in the axial direction of the support shaft 82. The motor 10 includes a cylindrical stator 101 that is fixed to the support member main body 81 and a rotor 102 that is disposed inside the stator 101. The stator 101 has a stator core 103 and a stator coil 104 provided on the stator core 103. The rotor 102 has a cylindrical rotor core 105 fixed to the rotation support portion 42 and a permanent magnet 106 fixed to the rotor core 105 in a state of facing the stator 101 with a gap. doing. The rotor 102 rotates integrally with the rotation support portion 42 with respect to the stator 101 by supplying power to the stator coil 104.

  The drive sheave 11 is fixed to a portion of the rotation support portion 42 opposite to the motor 10 side. Thereby, the drive sheave 11 rotates integrally with the rotation support portion 42. In this example, the rotation support portion 42, the rotor core 105, and the drive sheave 11 are a single material formed by integral molding.

  A plurality of suspension grooves 16 are provided on the outer periphery of the drive sheave 11 along the circumferential direction of the drive sheave 11. Each suspension body 7 wound around the drive sheave 11 is inserted into each suspension body groove 16. The car 2 and the counterweight 3 move up and down in the hoistway 1 by the rotation of the driving sheave 11.

  The brake device 12 includes the brake disc 17 fixed to the outer peripheral portion of the rotation support portion 42 and the brake device main body 18 attached to the support member main body portion 81. The brake disc 17 is disposed between the motor 10 and the drive sheave 11 in the axial direction of the support shaft 82. Further, the brake disc 17 rotates integrally with the rotation support portion 42. The configuration of the brake device body 18 is the same as that of the first embodiment.

  Here, each suspension body 7 is impregnated with a lubricant. As the lubricant for the suspension body 7, for example, oil or grease is used. When the rotation support portion 42 rotates integrally with the driving sheave 11 with respect to the support member 8 to move each suspension body 7, the lubricant impregnated in each suspension body 7 is caused by the centrifugal force of each suspension body 7. In some cases, the sheave may be scattered toward the brake disc 17 around the drive sheave 11. When the lubricant from the suspension body 7 adheres to the braking surface of the brake disc 17, the friction coefficient between the brake disc 17 and the brake shoe 19 is lowered, and the braking performance of the brake device 12 is extremely lowered.

  The hoisting machine 5 includes a partition member 21 that prevents the lubricant from each suspension body 7 from reaching the brake disc 17 and a radially outer side of the partition member 21 in order to prevent a reduction in the braking capacity of the brake device 12. And a cover 44 disposed on the surface.

  FIG. 10 is an enlarged view showing an enlarged range of the partition member 21 and the cover 44 of the hoisting machine 5 of FIG. A groove 24 along the circumferential direction of the rotation support portion 42 is provided on the outer periphery of the rotation support portion 42 over the entire circumference of the rotation support portion 42. The groove 24 is located between the drive sheave 11 and the brake disc 17.

  The partition member 21 surrounds the rotation support portion 42 along the groove 24. Further, the configuration of the partition member 21 is the same as that of the first embodiment. Therefore, in this example, all of the partition member 21 is an expandable / contractible bellows portion in which the mountain fold portion and the valley fold portion are repeated in the circumferential direction of the rotation support portion 42.

  The overlapping portion 21 a of the partition member 21 is fastened to the rotation support portion 42 by a fastener 25 along the groove 24. The partition member 21 is fixed to the rotation support portion 42 in a state where the overlapping portion 21 a is fastened to the rotation support portion 42 with the fastener 25. The configuration of the fastener 25 is the same as that of the first embodiment.

  The inner surface of the groove 24 is a plane orthogonal to the outer peripheral surface of the rotation support portion 42. The partition member 21 is attached to the rotation support portion 42 in a state where the inner peripheral portion of the partition member main body portion 21 b is in contact with the inner side surface of the groove 24. In this example, the partition member 21 is attached to the rotation support portion 42 in a state where the partition member main body portion 21 b is in contact with the inner surface of the groove 24 near the drive sheave 11. Thereby, in the partition member 21, the state where the partition member main body portion 21b is orthogonal to the outer peripheral surface of the rotation support portion 42 is maintained.

  The cover 44 is formed by bending a metal plate. The cover 44 is attached to the support member 8 with a plurality of bolts (not shown). Further, the cover 44 covers the surroundings of the partition member 21 and the drive sheave 11 together. Further, the cover 44 is disposed around each of the partition member 21 and the drive sheave 11 while avoiding contact with each suspension body 7. Other configurations are the same as those in the first embodiment.

  Next, a procedure for attaching the partition member 21 to the rotation support portion 42 will be described. First, the overlapping portion 21 a of the partition member 21 is wound around the bottom surface of the groove 24 while adjusting the expansion and contraction of the bellows portion 213 of the partition member 21 according to the outer diameter of the rotation support portion 42. Thereby, the bellows part of the outer peripheral part of the partition member main body part 21 b extends, the partition member 21 extends in the circumferential direction of the rotation support part 42, and the partition member 21 surrounds the entire periphery of the rotation support part 42. At this time, the inner peripheral portion of the partition member main body portion 21 b is pressed against the inner side surface of the groove 24 to keep the partition member main body portion 21 b standing on the outer peripheral surface of the rotation support portion 42.

  Thereafter, the fastener 25 is overlapped on the overlapping portion 21 a from the outside in the radial direction, and the fastener 25 is tightened in a state where the overlapping portion 21 a is sandwiched between the bottom surface of the groove 24 and the fastener 25. Thereby, the overlapping portion 21 a is fixed in the groove 24, and the partition member 21 is fixed to the rotation support portion 42. In this way, the partition member 21 is attached to the rotation support portion 42.

  Thereafter, the cover 44 is disposed around the drive sheave 11 and the partition member 21 so as to avoid the suspension bodies 7, and the cover 44 is attached to the support member 8 with bolts.

  Next, an operation when the lubricant impregnated in the suspension 7 is scattered from the suspension will be described. FIG. 11 is a side view showing the state of the lubricant scattered from the suspension body 7 when the driving sheave 11 and the partition member 21 of FIG. 10 are rotating. When the driving sheave 11 rotates, at least a part of the lubricant impregnated in the suspension 7 is scattered from the suspension 7 toward the partition member 21 as droplets 31 due to the centrifugal force of the suspension 7. The droplet 31 that has reached the partition member 21 reaches the outer peripheral portion of the partition member 21 by being transmitted radially outward through the partition member 21 by the centrifugal force of the partition member 21 that rotates integrally with the rotation support portion 42. The droplet 31 that has reached the outer peripheral portion of the partition member 21 is ejected from the partition member 21 by the centrifugal force of the partition member 21, but is received by the cover 44. This prevents the lubricant scattered from the suspension 7 from reaching the brake disc 17.

  Thus, even if the present invention is applied to the thin hoisting machine 5, the partition member 21 can be easily attached to the rotation support part 42 by adjusting the expansion and contraction of the bellows part, and the hoisting machine 5 can be easily manufactured. Can be. Moreover, the manufacturing cost of the partition member 21 can also be reduced, and the manufacturing cost of the hoisting machine 5 can be reduced.

Embodiment 3 FIG.
FIG. 12 is a cross-sectional view of an essential part showing an elevator hoist according to Embodiment 3 of the present invention. In the third embodiment, the partition member 21 is fixed to the cover 44 via a fixture 51 including bolts and nuts. That is, the partition member 21 is fixed to the support member 8 by the fixture 51 and the cover 44. In addition, a gap exists between the partition member 21 and the rotation support portion 42. Thereby, in Embodiment 3, the partition member 21 does not rotate integrally with the rotation support part 42. The groove 24 as in the first and second embodiments is not provided in the outer peripheral portion of the rotation support portion 42.

  The partition member 21 is comprised by the strip | belt-shaped member in which the bellows part is formed. In this example, the band-shaped member constituting the partition member 21 is not bent, and the overlapping portion 21 a and the partition member main body portion 21 b as in Embodiments 1 and 2 are not formed on the partition member 21.

  The partition member 21 surrounds the rotation support part 42 along the circumferential direction of the rotation support part 42. In the partition member 21, the expansion and contraction of the bellows part is adjusted according to the outer diameter of the rotation support part 42. The partition member 21 is located between the drive sheave 11 and the brake disc 17 in the axial direction of the support shaft 82. Further, the partition member 21 is disposed orthogonal to the outer peripheral surface of the rotation support portion 42. Other configurations are the same as those of the second embodiment.

  Next, an operation when the lubricant is scattered from the suspension body 7 will be described. When the drive sheave 11 rotates, at least a part of the lubricant impregnated in the suspension 7 is scattered as droplets from the suspension 7 due to the centrifugal force of the suspension 7 and is received by the partition member 21 and the cover 44. Thereby, the lubricant from the suspension body 7 is prevented from scattering beyond the partition member 21 and the cover 44.

  Even in such a hoisting machine 5, since the entire partition member 21 is a bellows part, the partition member 21 can be easily arranged around the rotation support part 42 by adjusting the expansion and contraction of the bellows part. The manufacture of the upper machine 5 can be facilitated. Moreover, the manufacturing cost of the partition member 21 can also be reduced, and the manufacturing cost of the hoisting machine 5 can be reduced. Furthermore, since the partition member 21 is fixed to the support member 8, it is possible to avoid centrifugal force from being applied to the partition member 21. Thereby, it can prevent more reliably that the position of the partition member 21 slip | deviates, and the improvement of the reliability of the winding machine 5 can be aimed at.

  In each of the above embodiments, the entire partition member 21 is the bellows part 213, but only a part of the partition member 21 may be the bellows part 213 in the circumferential direction of the partition member 21. Even in this case, the partition member 21 can be easily disposed around the rotating body by adjusting the expansion and contraction of the bellows portion 213. Thereby, while being able to make manufacture of the winding machine 5 easy, reduction of the manufacturing cost of the winding machine 5 can be aimed at.

  In each of the above embodiments, the present invention is applied to an elevator hoisting machine as a rotating machine. For example, an escalator driving machine, a ropeway driving machine, or a cable car as a rotating machine having a rotating body. The present invention may be applied to a driving machine for a vehicle.

  Further, in each of the above embodiments, by blocking the movement of the lubricant by the partition member 21, for example, the protection target such as the brake device 12 is protected from the lubricant, but not only the lubricant, The protection target may be protected by blocking the movement of other liquids by the partition member 21. For example, when the protection target is weak to water, the protection target may be protected from water by blocking the entry of water from the outside to the protection target by the partition member 21.

Claims (3)

Support member,
A rotating body that is rotatably supported by the support member; and a partition member that is disposed along a circumferential direction of the rotating body and surrounds the rotating body.
At least a part of the partition member is an expandable bellows part in which a mountain fold part and a valley fold part are repeated in the circumferential direction ,
The partition member is attached to the outer periphery of the rotating body,
A groove along the circumferential direction of the rotating body is provided on the outer periphery of the rotating body,
The partition member has an overlapping portion that overlaps the bottom surface of the groove, and a partition member main body portion that extends radially outward from the overlapping portion,
The overlapping portion is a rotating machine that is fastened to the rotating body by a fastener along the groove . The rotating machine according to claim 1, further comprising a cover disposed on a radially outer side of the partition member. An elevator hoisting machine that is a rotating machine according to claim 1 .

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