JP2004211785A - Winding apparatus for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding apparatus for an elevator capable of surely preventing leakage of a lubricating oil from a portion in which a rotary shaft passes through and projects a reduction gear and invasion of the lubricating oil to a disk brake side. <P>SOLUTION: A first oil throwing means 40 mounting on an input shaft of the reduction gear 20 prevents the lubricating oil to the reduction gear 20 from leaking via a through-hole 22 of a longitudinal wall 21. The lubricating oil leaked from the reduction gear 20 and stuck on an outer periphery of a rotary shaft 9 is scraped off by a brush 52 of an oil scraping means 50, and the lubricating oil is discharged from predetermined discharging passage after the scraped oil is temporarily stored inside a body 51 of the oil scraping means 50. Further, the oil is prevented to reach a brake shoe 12a of a brake disk 32 by a second oil throwing means 60 mounting on the disk brake 32. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hoisting device for an elevator, and more specifically, lubricating oil leaked through a portion where a rotating shaft penetrates a wall surface of a speed reducer and is mounted on a tip side of the rotating shaft. The present invention relates to a technique for improving a disc brake so as not to adhere to the disc brake.
[0002]
[Prior art]
As shown in FIG. 8, in a conventional elevator hoisting apparatus 1, a car 5 and a counterweight 6 are formed into a fishing bottle shape by a main rope 4 wound around a main sheave 3 that is rotationally driven by a speed reducer 2. Suspended.
On the other hand, as shown in FIG. 9, a drive motor 6 as a power source for rotationally driving the main sheave 3 is connected to an input shaft 9 of the speed reducer 2 via a coupling 8.
A disk brake 10 for braking the rotation of the main sheave 3 is mounted on the tip 9a of the input shaft 9.
[0003]
The structure of the disc brake 10 will be briefly described with reference to FIG. 10. A bearing 2 c is fitted in a through hole 2 b formed through a vertical wall 2 a of the speed reducer 2 to rotatably support the input shaft 9. I have.
The cylindrical boss 11 fitted to the tip 9 a of the input shaft 9 rotates integrally with the input shaft 9 by key connection with the input shaft 9.
A center hole portion of a substantially disk-shaped brake disc 12 is fitted into a spline 11 a formed on the outer periphery of the boss 11, and rotates integrally with the input shaft 9 in a state where the input shaft 9 can be displaced in the axial direction. It is supposed to.
[0004]
A thick annular frame 13 is fixed to the outer wall surface of the vertical wall 2 a of the speed reducer 2 coaxially with the input shaft 9.
On the frame 13, a thin annular fixing plate 15 is supported by a plurality of gap adjusting bolts 14 coaxially with the input shaft 9 and non-displaceable in the axial direction.
Further, a thin annular movable plate 17 is supported on the frame 13 by a plurality of torque adjusting bolts 16 so as to be coaxial with the input shaft 9 and displaceable in the axial direction thereof.
[0005]
Further, an urging spring 18 disposed coaxially with the torque adjusting bolt 16 urges the movable plate 17 toward the fixed plate 15.
As a result, the brake disc 12 is nipped by the movable plate 17 and the fixed plate 15 and frictionally engages with both, so that the brake disc 12 cannot rotate integrally with the input shaft 9, and therefore the main sheave 2 also cannot rotate. .
[0006]
On the other hand, when the coil 19 incorporated in the frame 13 is energized at the same time as the power supply to the drive motor 6, the coil 19 attracts the movable plate 17 to the speed reducer 2 and separates the movable plate 17 from the fixed plate 15.
As a result, the frictional engagement between the brake disk 12 and the movable plate 17 and the fixed plate 15 is released, and the input shaft 9 becomes rotatable, so that the main sheave 3 can also be freely rotated.
[0007]
[Problems to be solved by the invention]
By the way, lubricating oil for lubricating a reduction gear (not shown) is stored inside the reduction gear 2.
As a result, the lubricating oil is scattered inside the reduction gear 2 with the rotation of the reduction gear, so that the lubricating oil leaks to the outside of the reduction gear 2 through the portion where the input shaft 9 passes through the vertical wall 2a. There is a possibility that.
When the lubricating oil leaking from the speed reducer 2 reaches the outer peripheral surface of the boss 11 through the input shaft 9, the lubricating oil scatters radially outward due to centrifugal force caused by the rotation of the input shaft 9 and the boss 11, and the brake disk 12 is attached to the brake shoe 12a.
Then, the friction coefficient between the brake disk 12 and the movable plate 17 and the fixed plate 15 decreases, so that the rotation of the brake disk 12 and the input shaft 9, that is, the rotation of the main sheave 3 cannot be sufficiently braked.
[0008]
Therefore, conventionally, the oil seal disposed adjacent to the bearing 2c rotatably supporting the input shaft 9 is doubled, or the lubricating oil is directed toward the brake disk 12 by a plate-like member fitted to the input shaft 9. To prevent intrusion.
However, there is room for further improvement in preventing lubricating oil from entering the brake disk 12 side.
[0009]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems of the related art and not only can more reliably prevent leakage of lubricating oil from a portion where a rotating shaft penetrates and protrudes through a reduction gear, but also reduces the reduction gear It is an object of the present invention to provide an elevator hoisting apparatus improved so that lubricating oil leaked to the outside can be more reliably prevented from entering the disk brake side.
[0010]
[Means for Solving the Problems]
The elevator hoisting device according to claim 1, which solves the above problem,
A rotating shaft with a disk brake for braking the rotation of the main sheave mounted on the tip side thereof,
A reduction gear having a through-hole through which the rotating shaft passes, and a circular recess coaxially recessed on the inner wall surface of the through-hole;
A first oil draining means having a disk-shaped portion which is mounted on the rotating shaft and rotates integrally with the inside of the speed reducer and which is located inside the concave portion and closes an opening of the concave portion; , Is provided.
It is preferable that the outer diameter of the disc-shaped portion is made closer to the inner diameter of the circular recess to reduce the gap between them.
Further, it is preferable that the side surface of the disc-shaped portion on the side exposed to the inside of the speed reducer is flush with the inner wall surface of the speed reducer.
[0011]
That is, in the elevator hoisting device according to the first aspect, the concave portion exists on the entire inner surface of the speed reducer around the through hole through which the rotating shaft passes.
The disk-shaped portion of the first oil drainer mounted on the rotating shaft closes the opening of the circular recess.
Thus, even if the lubricating oil scatters with the rotation of the reduction gear inside the reduction gear, the lubricating oil is hindered by the disk-shaped portion of the first oil draining means and hardly reaches the through hole.
Further, the lubricating oil flowing down along the inner wall surface of the speed reducer flows down to the side surface of the disc-shaped portion arranged flush with the inner wall surface of the speed reducer.
Therefore, leakage of the lubricating oil from the portion where the rotating shaft penetrates and projects through the speed reducer can be more reliably prevented.
[0012]
In addition, the elevator hoisting device according to claim 2, which solves the above-described problem, includes a rotating shaft on which a disc brake for braking the rotation of the main sheave is mounted at a tip end thereof;
A speed reducer having a through hole through which the rotating shaft passes,
Oil removal means supported by the gear case, which removes lubricating oil attached to the outer peripheral surface by contacting the outer peripheral surface of the rotating shaft at a portion where the rotating shaft projects outward from the gear case, Prepare.
The oil-dropping means includes a cylindrical main body disposed coaxially around the rotation axis, and a brush extending radially inward from an inner wall surface of the main body and having a tip contacting the outer peripheral surface. It is preferred to be composed of
Further, it is preferable that a pair of flanges extending radially inward from both side edges of the main body portion be provided.
Further, it is preferable that a discharge hole for discharging the lubricating oil removed from the outer peripheral surface of the rotating shaft to the outside is provided in the flange in the main body portion.
[0013]
That is, in the elevator hoisting device described in claim 2, since the lubricating oil leaked to the outside of the speed reducer along the rotating shaft is scraped off by the oil removing means that comes into contact with the outer peripheral surface of the rotating shaft, It does not enter the brake side.
At this time, if the lubricating oil attached to the outer peripheral surface of the rotating shaft is scraped by the brush, the lubricating oil scrubbed in the gap between the fibers constituting the brush can be absorbed and held. it can.
Further, if flanges are provided on both side edges of the cylindrical main body, the lubricating oil absorbed by the brush does not easily leak to the outside.
Furthermore, if the lubricating oil is discharged from the discharge hole provided in the flange, it is possible to discharge the lubricating oil to a specific discharge path, and it is possible to reliably prevent the lubricating oil from entering the disk brake side. it can.
[0014]
Further, to solve the above problems, the elevator hoisting device according to claim 6, wherein a rotating shaft protruding through the reduction gear;
A disk brake for braking the rotation of the main sheave, which is mounted on the tip side of the rotating shaft,
A second oil draining means which is coaxially attached to a radially inner portion of a brake disc which rotates integrally with the rotating shaft and has a tapered portion which expands in diameter toward the speed reducer.
The tip of the tapered portion is located closer to the speed reducer than the rear surface of the movable plate that frictionally engages with the brake disk so as to be able to come and go.
In addition, it is preferable that the tip of the tapered portion is located inside a recess formed in the vertical wall surface on the speed reducer side facing the back surface of the movable plate.
[0015]
That is, in the elevator hoisting device described in claim 6, even if the lubricating oil leaked to the outside of the speed reducer along the rotation axis enters the disk brake side, the lubricating oil is prevented by the second oil draining means. The brake disc cannot be reached.
Further, since the lubricating oil adhering to the inner wall surface of the second oil draining means flows down to the back side of the movable plate, it can be surely prevented from adhering to the brake disk.
When the tip of the tapered portion is located inside the concave portion formed in the vertical wall surface on the side of the speed reducer, the lubricating oil attached to the second oil draining device scatters radially outward due to centrifugal force accompanying rotation. Also adhere to the inner wall surface of the recess.
Since the lubricating oil adhered to the inner wall surface of the concave portion flows down along the vertical wall surface, it is possible to reliably prevent the lubricating oil leaked from the speed reducer from adhering to the brake disk.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of an elevator hoisting device according to the present invention will be described in detail with reference to FIGS. 1 to 5. In the following description, the same reference numerals are used for the same portions as those in the above-described conventional technology.
[0017]
The elevator hoisting device of the present embodiment is similar to the conventional hoisting device 1 shown in FIGS. 8 and 9 in that a car 5 and a counterweight 6 are formed in a fishing bottle shape by a main rope 4 wound around a main sheave 3. And the main sheave 3 is rotated in both forward and reverse directions to raise and lower the car 5. In order to provide the first oil draining means described below, the conventional speed reducer 2 It has been replaced by a new reducer 20.
A drive motor 7 for rotating and driving the main sheave 3 is connected to an input shaft (rotation shaft) 9 of a speed reducer 20 via a coupling 8, and a tip 9 a of the input shaft 9 is connected to the main sheave 3. Although a disc brake for braking the rotation is mounted, the conventional disc brake 10 has been replaced with a new disc brake 30 in order to provide oil draining means and second oil draining means described later.
[0018]
In the speed reducer 20 of the hoisting device of the present embodiment, as shown in FIG. 1, the input shaft 9 is received on the inner wall surface 21a of the vertical wall 21 that houses a reduction gear (not shown) inside. A recess 23 coaxial with the through hole 22 is provided.
The concave portion 23 is circular when viewed from the axial direction of the input shaft 9, and has a depth dimension that is about １ ／ of the thickness of the vertical wall 21.
A small-diameter portion 9b whose outer diameter is slightly smaller than the outer diameter of the general portion is cut into a stepped portion on the outer peripheral surface of the input shaft 9 near the inner wall surface 21a of the speed reducer 20.
[0019]
A first oil draining means 40 as shown in an enlarged view in FIG. 3 is fitted to the small diameter portion 9b of the input shaft 9.
The first oil draining means 40 is formed by press-molding a thin steel plate. The first oil draining means 40 is externally fitted to the small-diameter portion 9b of the input shaft 9, and has a cylindrical holding portion 41 for positioning in the axial direction. And a disc-shaped oil-splitting flange (disc-like portion) 42 vertically provided from the end of the oil-removing device.
Further, slits 41a and 42a are provided in the holding portion 41 and the oil cut flange 42, respectively, so that attachment and detachment with respect to the input shaft 9 are easy.
[0020]
The holding portion 41 is provided with a pair of mounting flanges 41b and 41c facing each other across the slit 41a, and the mounting flanges 41b and 41c are respectively provided with a pair of bolt insertion holes 42d. .
Thus, after the holding portion 41 is fitted to the small-diameter portion 9b of the input shaft 9, the bolt inserted into the bolt insertion hole 42d is tightened to position the first oil draining means 40 in the axial direction while positioning the first oil draining means 40 in the axial direction. 9 can be securely fixed.
[0021]
When the first oil draining means 40 is mounted on the input shaft 9, the oil draining flange 42 enters the inside of the concave portion 23 formed in the vertical wall 21 of the speed reducer 20 and almost closes the opening of the concave portion 23. At the same time, the surface 42b on the holding portion 41 side is substantially flush with the inner wall surface 21a of the vertical wall 21 of the speed reducer 20.
In addition, the outer diameter of the oil drain flange 42 is set slightly smaller than the inner diameter of the recess 23, and the gap between the outer peripheral surface of the oil drain flange 42 and the outer inner wall surface of the recess 23 is reduced.
[0022]
As a result, even if the lubricating oil is scattered with the rotation of a reduction gear (not shown) inside the speed reducer 20, the lubricating oil is hindered by the lubricating flange 42 of the first lubricating means 40 and the lubricating oil is Is difficult to reach.
Further, the lubricating oil attached to the inner wall surface 21a of the speed reducer 20 is transmitted from the inner wall surface 21a to the surface 42b of the oil drain flange 42 as shown by the arrow A in FIG. Lubricating oil cannot easily enter the
Therefore, it is possible to reliably prevent the lubricating oil stored inside the speed reducer 20 from leaking out of the speed reducer 20 through the through hole 22 that receives the input shaft 9.
[0023]
On the other hand, in the disk brake 30 of the hoisting device of the present embodiment, as shown in FIG.
The oil-dropping means 50 is for scraping the lubricating oil leaking to the outside of the speed reducer 20 along the outer peripheral surface of the input shaft 9 from the outer peripheral surface of the input shaft 9.
[0024]
The oil-dropping means 50 is a substantially cylindrical component molded from an oil-resistant resin material, and has a cylindrical main body portion 51, which is implanted on the inner wall surface of the main body portion 51, extends radially inward, and It has a brush 52 made of a number of fibers whose length is set so that the tip rubs the outer peripheral surface of the input shaft 9.
[0025]
Since there is a gap between the fibers constituting the brush 52, it is possible to absorb and hold the lubricating oil rubbed from the outer peripheral surface of the input shaft 9.
As shown in FIGS. 1 and 4, a pair of flanges 51a and 51b are provided on both side edges of the main body portion 51 so that the lubricating oil absorbed by the brush 52 does not easily leak to the outside. Like that.
The pair of flanges 51 a and 51 b are arranged in the radial direction so that the tips thereof are closest to the outer peripheral surface of the input shaft 9 so as to maximize the amount of lubricating oil that can be accommodated inside the main body portion 51. The length is determined.
As a result, the lubricating oil leaked from the speed reducer 20 can be held inside the oil dropping means 50 and can be prevented from entering the disk brake 30 along the outer peripheral surface of the input shaft 9.
[0026]
The lowermost part of the flange 51a on the disc brake 30 side when attached to the center hole 31a of the frame 31 has a discharge port for discharging the lubricating oil contained inside the main body section 51. A hole 51c is provided.
Thereby, the lubricating oil rubbed off from the outer peripheral surface of the input shaft 9 flows down along the inner wall surface of the center hole 31a of the frame 31 and the vertical wall surface 31b of the frame 31, as shown by an arrow B in FIG. The lubricating oil leaked from the speed reducer 20 can be reliably prevented from entering the brake disk 32 side.
[0027]
On the other hand, as shown in FIGS. 1 and 2, the disk brake 30 of the hoisting device of the present embodiment is coaxially mounted near the center hole of the brake disk 32 and rotates integrally with the input shaft 9. An oil draining means 60 that opens in a tapered shape is mounted on the side of the speed reducer 20.
The second oil draining means 60 is for preventing the lubricating oil passing through the oil draining means 50 and entering the tip 9a side of the input shaft 9 from reaching the brake disk 32.
[0028]
The second oil draining means 60 is formed by press-forming from a thin steel plate. As shown in an enlarged view in FIG. 5, an annular portion 61 which is in close contact with one side surface of the brake disk 32, and an outer portion of the annular portion 61 And a tapered portion 62 extending divergently from the periphery toward the speed reducer 20.
The annular portion 61 is provided with a plurality of through holes 61a through which bolts used for fixing to the brake disk 32 are inserted.
When the tapered portion 62 is fixed to the brake disk 32, the tapered portion 62 extends toward the speed reducer 20 along the inner wall surface of the tapered center hole 33 a of the movable plate 33 constituting the disk brake 30. It does not impede axial displacement.
The tip 62 a of the tapered portion 62 is located on the side of the speed reducer 20 beyond the back surface 33 b of the movable plate 33.
[0029]
The lubricating oil that has passed through the oil dropping means 50 and entered the tip 9a side of the input shaft 9 and adhered to the outer peripheral surface of the boss 11 is blocked by the second oil draining means 60, and the brake shoe 12a of the brake disc 32 Can not be reached.
Further, the lubricating oil attached to the inner wall surfaces 61b and 62b of the second oil draining means 60 flows down into the gap S between the back surface 33b of the movable plate 33 and the vertical wall surface 31b of the frame 31.
As a result, it is possible to reliably prevent the lubricating oil that has passed through the oil dropping means 50 and entered the tip end 9a of the input shaft 9 and adhered to the outer peripheral surface of the boss 11 from adhering to the brake shoes 12a of the brake disk 32.
[0030]
That is, according to the elevator hoisting device of the present embodiment, the lubricating oil of the speed reducer 20 leaks through the through hole 22 of the vertical wall 21 by the first oil draining means 40 attached to the rotating shaft 9. Can be prevented.
In addition, the lubricating oil leaking from the speed reducer 20 and adhering to the outer peripheral surface of the rotating shaft 9 is scraped off by the oil dropping means 50, and is temporarily stored in the main body portion 51. Can be discharged.
Furthermore, the second oil draining means 60 can reliably prevent the lubricating oil that has passed through the oil draining means 50 from reaching the brake shoes 12a of the brake disk 32.
Therefore, the lubricating oil leaked from the speed reducer 20 does not enter the disc brake 30 to reduce the braking force for braking the rotation of the main sheave 3.
[0031]
Next, a modified example of the above-described elevator hoisting apparatus will be described with reference to FIGS. 6 and 7.
[0032]
In the elevator hoisting device shown in FIGS. 6 and 7, the mounting direction of the oil dropping means 50 is reversed, and the discharge hole 51 c provided in the flange 51 a is located near the outer wall surface 21 b of the speed reducer 20. positioned.
Further, a lubricating oil discharge groove 31c extending in the vertical direction is formed in the back surface of the frame 31.
Thus, when the lubricating oil scraped off from the outer peripheral surface of the input shaft 9 by the oil dropping means 50 is discharged from the main body portion 51 of the oil dropping means 50, the discharge holes 51c arranged on the reduction gear 20 side and Since it flows down as shown by the arrow C in FIG. 6 through the discharge groove 31c of the frame 30, it does not reach the disc brake 30.
[0033]
The tip 62a of the tapered portion 62 of the second oil draining means 60 enters the inside of a concave portion 31d formed in the vertical wall surface 31b of the frame 31 coaxially with the center hole 31a.
A tapered surface 31e extending toward the brake disk 32 is continuously provided on the outer peripheral portion of the concave portion 31d.
[0034]
When the second oil draining means 60 rotates integrally with the input shaft 9, the lubricating oil adhering to the inner wall surfaces 61b and 62b moves radially outward by the action of the centrifugal force, and eventually the tapered portion 62 It scatters radially outward from the tip 62a.
At this time, since the distal end 62 a of the tapered portion 62 has entered the concave portion 31 d of the frame 31, the lubricant scattered radially outward from the distal end 62 a of the tapered portion 62 adheres to the tapered surface 31 e of the frame 31.
Then, the lubricating oil attached to the tapered surface 31e of the frame 31 flows down from the surface of the concave portion 31d to the vertical wall surface 31b of the frame 31, and drops below the frame 31 as indicated by an arrow B in FIG.
[0035]
Furthermore, if the gap S is set to be always open between the vertical wall surface 31b of the frame 31 and the back surface 33b of the movable plate 33, the lubricating oil scattered from the second oil draining means 60 and adhered to the frame 31 Does not adhere to the movable plate 33.
In other words, the gap S extending in a direction perpendicular to the axis of the input shaft 9 prevents the lubricating oil from entering the brake disk 32 from the frame 31 side.
As a result, it is possible to reliably prevent the lubricating oil that has passed through the oil dropping means 50 and entered the tip 9a side of the input shaft 9 from reaching the brake disk 32.
[0036]
As mentioned above, although one Embodiment of the hoisting apparatus of the elevator by this invention was described in detail, it cannot be overemphasized that this invention is not limited to the above-mentioned embodiment and various changes are possible.
For example, in the above-described embodiment, the first oil draining unit 40, the oil draining unit 50, and the second oil draining unit 60 are used at the same time. Can be used in combination with the sealing means.
Further, the above-described oil removing means 50 may be formed in a semi-cylindrical shape and installed only on the lower half of the input shaft 9.
Further, another member can be used instead of the brush 52 as long as the member can scrape off the lubricating oil attached to the outer peripheral surface of the input shaft 9.
[0037]
【The invention's effect】
As is apparent from the above description, the elevator hoisting device according to the present invention includes the first oil draining unit, the oil draining unit, and the second oil draining unit in a portion where the rotating shaft projects through the reduction gear. Since each of them is provided, it is possible to reliably prevent the lubricating oil leaking along the rotating shaft from adhering to the disc brake mounted on the tip side of the rotating shaft.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of an elevator hoisting device according to the present invention.
FIG. 2 is an enlarged view showing a main part of FIG. 1;
FIG. 3 is an overall perspective view showing a first oil draining unit shown in FIG. 1;
FIG. 4 is an overall perspective view showing an oil removal member shown in FIG. 1;
FIG. 5 is an overall perspective view showing a second oil draining unit shown in FIG. 1;
FIG. 6 is a longitudinal sectional view showing a modification of the elevator hoisting device shown in FIG.
FIG. 7 is an enlarged view showing a main part of FIG. 6;
FIG. 8 is a front view showing an elevator hoisting device.
FIG. 9 is a plan view of the elevator hoisting device shown in FIG. 6;
FIG. 10 is an enlarged sectional view showing a main part of a conventional elevator hoisting device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Elevator hoisting device 2 Reduction gear 3 Main sheave 4 Main rope 5 Riding car 6 Counterweight 7 Drive motor 8 Coupling 9 Input shaft 10 Disc brake 11 Boss 12 Brake disc 12a Brake shoe 13 Frame 15 Fixed plate 17 Movable plate 18 Urging spring 19 Coil 20 Reducer 21 Vertical wall 22 Through hole 30 Disc brake 31 Frame 31a Center hole 31b Vertical wall surface 31c Lubricating oil discharge groove 31d Recess 31e Tapered surface 32 Brake disk 33 Movable plate 40 First oil draining means 41 Holding Part 42 Oil drain flange (disk-shaped part)
Reference Signs List 50 oil removing means 51 body part 52 brush 60 second oil removing means 61 annular part 62 tapered part

Claims (7)

A rotating shaft with a disk brake for braking the rotation of the main sheave mounted on the tip side thereof,
A reduction gear having a through-hole through which the rotating shaft penetrates, and a recess formed in the inner wall surface coaxially with the through-hole,
A first oil drainer having a disk-shaped portion mounted on the rotating shaft and integrally rotated inside the speed reducer, and formed to close an opening of the concave portion;
A hoisting device for an elevator, comprising: A rotating shaft with a disk brake for braking the rotation of the main sheave mounted on the tip side thereof,
A speed reducer having a through hole through which the rotating shaft passes,
Oil removal means supported by the gear case, which removes lubricating oil attached to the outer peripheral surface by contacting the outer peripheral surface of the rotating shaft at a portion where the rotating shaft projects outward from the gear case,
A hoisting device for an elevator, comprising: The oil removing means,
A cylindrical body portion disposed coaxially around the rotation axis;
A brush extending radially inward from an inner wall surface of the main body portion and having a tip contacting the outer peripheral surface,
The elevator hoist apparatus according to claim 1, comprising: The elevator hoist apparatus according to claim 3, wherein the main body portion has a pair of flanges extending radially inward from both side edges thereof. The hoisting of the elevator according to claim 4, wherein the main body portion has a discharge hole in the flange for discharging the lubricating oil removed from the outer peripheral surface of the rotating shaft to the outside thereof. apparatus. A rotating shaft protruding through the speed reducer;
A disk brake for braking the rotation of the main sheave, which is mounted on the tip side of the rotating shaft,
Second oil draining means having a tapered portion that is coaxially attached to a radially inner portion of a brake disk that rotates integrally with the rotation shaft and has a diameter that increases toward the speed reducer,
The tip of the tapered portion is located closer to the speed reducer than the back surface of the movable plate that is displaced in the axial direction of the rotating shaft and frictionally engages with the brake disc so as to be able to come and go.
An elevator hoisting device. The tip of the tapered portion is located inside a recess formed in a vertical wall surface on the speed reducer side facing the back surface of the movable plate.
The hoisting device for an elevator according to claim 6, wherein:

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