JP7050633B2 - Oil cleaning jig for elevator return car - Google Patents

Description

The present disclosure relates to an oil cleaning jig in an elevator return wheel.

An elevator is a passenger carrier that carries passengers in a car and raises and lowers the car in the hoistway at the request of the passengers. In order to raise and lower the car, the main rope is suspended from the car and the main rope is driven by a hoist. Since a balanced weight is used to balance the weight of the car to reduce the hoisting load, the main rope is also suspended by the balanced weight, and when the car is raised, the balanced weight is lowered. When the car is lowered, the balance weight is raised. A return wheel is used to change the direction of movement of the main rope between ascending and descending. Since the main rope is suspended on the return wheel, the return wheel rotates around the support shaft as the main rope moves. The bearing between the return wheel and the support shaft is refueled to facilitate the rotation of the return wheel. For lubrication, grease is used in which lubricating oil (base oil) such as mineral oil or synthetic oil is held by a thickener and various additives are added. If the bearing is not a sealed bearing in which grease is pre-filled, but an open bearing, the inside of the bearing is filled with an appropriate amount of grease and replenished at regular intervals.

As a related technique of the present disclosure, Patent Document 1 describes an oil seal and an oil seal that prevent the lubricating oil leaking from the bearing of the hoist provided on the car of the machineless elevator from flowing into the hoist brake. The oil receiver provided earlier and the discharge hole communicating with the oil receiver are disclosed.

Japanese Unexamined Patent Publication No. 2010-100373

After grease is applied to the bearing of the return wheel, excess grease may seep to the bearing end face side. The exuded grease becomes oil droplets and drips, and pollutes the inside of the hoistway, so cleaning work such as wiping is performed. Cleaning work such as wiping must be performed over the entire circumference of the bearing end face side, but due to the mounting structure of the return wheel, it is difficult for the operator to reach the bearing end face side, and it is troublesome to perform this over the entire circumference. .. Therefore, there is a demand for an oil cleaning jig that can be wiped and cleaned without any hassle.

The oil cleaning jig in the return wheel of the elevator according to the present disclosure is a cleaning jig that wipes off excess oil exuded to the end face side of the bearing after refueling the bearing of the return wheel of the elevator rope, and is an outer circumference of the return wheel. Extends in the circumferential direction of the return wheel between one side spoke and the other side spoke arranged adjacent to each other in a plurality of spokes radially connecting between the side sheave part and the inner peripheral side bearing part. , The inter-spoke fixing member having spoke attachment portions at one end and the other end, respectively, the cleaning member support portion attached to the intermediate portion between one end and the other end of the inter-spoke fixing member, and the bearing from the cleaning member support portion. It includes an arm portion extending to the end face side and a cleaning member having an oil cleaning edge portion provided on the tip end side of the arm portion.

According to the above configuration, the cleaning member support portion is attached to the inter-spoke fixing member attached between the adjacent spokes of the return wheel, and the cleaning member support portion extends from the cleaning member support portion toward the bearing end face side and has an edge portion for oil cleaning on the tip side. A cleaning member is provided. When the return wheel rotates, the cleaning member also rotates together with the rotation, whereby the edge portion wipes off the oil over the entire circumference of the bearing end face side. As the return wheel rotates, the oil on the bearing end face side is automatically wiped off and cleaned, so no special work is required.

In the oil cleaning jig for the return wheel of the elevator according to the present disclosure, it is preferable that the edge portion is made of an oil-repellent material and has irregularities for removing oil. According to the above configuration, the oil on the bearing end face side can be efficiently wiped off.

In the oil cleaning jig for the return wheel of the elevator according to the present disclosure, the spoke-to-spoke fixing member has a right-handed female threaded portion on one end side and a left-handed female threaded portion on the other end side. , One end mounting part that has a male threaded part that meshes with the female threaded part on one end side of the main body and a spoke mounting part on one end, and one that meshes with the female threaded part on the other end side of the main body. It is preferably a turnbuckle type member having a threaded portion on one end and a spoke mounting portion on the other end.

According to the above configuration, the spoke-to-spoke fixing member is a turnbuckle type member. For example, one side spoke of the return wheel is attached to the spoke mounting part of the one end mounting part, the other side spoke of the return wheel is attached to the spoke mounting part of the other end mounting part, and the main body part is rotated around the axis of the male thread part. By doing so, the distance between the one-end mounting portion and the other-end mounting portion can be adjusted. As a result, the spoke-to-spoke fixing member can be firmly fixed between the adjacent spokes.

In the oil cleaning jig in the return wheel of the elevator according to the present disclosure, the cleaning member support portion is a set of support members attached to both sides in the axial direction orthogonal to the circumferential direction in the intermediate portion of the spoke-to-spoke fixing member. Is preferable. According to the above configuration, it is possible to simultaneously wipe off the oil on the end face side of the bearing on both sides in the axial direction of the bearing.

In the oil cleaning jig for the return wheel of the elevator according to the present disclosure, it is preferable that the spoke mounting portion has a groove for accommodating the radial outer peripheral surface of the spoke. According to the above configuration, it is possible to use a spoke mounting portion having a simple structure having only a groove.

In the oil cleaning jig for the return wheel of the elevator according to the present disclosure, it is preferable that the spoke mounting portion has a shape that surrounds the outer peripheral surface of the spoke and can be opened and closed. According to the above configuration, the spoke-to-spoke fixing member can be firmly fixed between the adjacent spokes without using the turnbuckle type member.

According to the oil cleaning jig in the return wheel of the elevator having the above configuration, the oil can be wiped off and cleaned without any trouble.

It is a block diagram of the elevator which uses the oil cleaning jig in the return wheel of the elevator of embodiment. It is a detailed perspective view of the part A of FIG. It is a front view of FIG. FIG. 3 is a cross-sectional view taken along the line BC of FIG. FIG. 3 is a diagram in which a return wheel mounting portion and the like are omitted. It is a perspective view about the part of the oil cleaning jig in FIG. It is a figure which shows the example of the shape of the spoke mounting part.

Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. In the following, a machine room-less type elevator will be described as an elevator, but this is an example in which a return wheel is provided below the car, and if the elevator is equipped with a return wheel that refuels the bearings. good.

The shapes, numbers, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the oil cleaning jig in the return wheel of the elevator. Further, in the following, the same reference numerals will be given to the same elements in all the drawings, and duplicate description will be omitted.

FIG. 1 is a block diagram of an elevator 10 to which an oil cleaning jig 90 in a return wheel of an elevator is applied. Hereinafter, unless otherwise specified, the "oil cleaning jig 90 in the elevator return wheel" is referred to as an oil cleaning jig 90.

The elevator 10 is a passenger carrier that puts passengers on the car 12 and raises and lowers the car 12 in the hoistway 14 in response to the passenger's request. The hoistway 14 is a space that runs vertically through the building and has an entrance / exit corresponding to each floor of the building. In FIG. 1, a two-dot chain line shows some landings 16 on each floor. The bottom surface of the hoistway 14 is a pit 18.

In addition to the car 12, the elevator 10 includes a hoisting machine 20, a balance weight 22, a main rope 24, a car guide rails 26, 27, and a balance weight guide rails 28, 29. Further, as a return wheel on which the main rope 24 is suspended, a car lower return wheel 30, 31 provided below the car 12, a top return wheel 32, 33, 34 provided on the ceiling side of the hoistway 14, and a balance weight. The balance weight return wheel 36 provided in 22 is provided. One end of the main rope 24 is fixed to the one-side fixed body 38 on the ceiling side of the hoistway 14, and the balance weight return wheel 36, the top return wheel 34, the hoisting machine 20, the top return wheel 32, 33, and the car bottom return. After passing through the vehicles 30 and 31, the other end is fixed to the other side fixing body 40 on the ceiling side of the hoistway 14. As described above, the elevator 10 is a machine room-less elevator in which the hoisting machine 20 is provided in the hoistway 14, and the car 12 and the counterweight weight 22 are upside down with each other at the speed of the main rope 24 (1 /). It is an elevator called "2: 1 roping type" that moves up and down at the speed of 2).

For the elevator 10, a car bottom return wheel 30, 31, a top return wheel 32, 33, 34, and a balanced weight return wheel 36 are used, and each return wheel has a main rope suspension wheel that can rotate around a fixed shaft 46. Has a configuration supported by. Hereinafter, the oil cleaning jig 90 (see FIG. 2) in the car lowering wheel 30 shown by A in FIG. 1 will be described. Hereinafter, unless otherwise specified, the "basket return vehicle 30" is referred to as a return vehicle 30. Grease is lubricated to the bearing 80 in order to smooth the rotation around the fixed shaft 46 of the return wheel 30, and oil cleaning is performed to wipe off the oil exuding from the bearing end face 86 (see FIG. 4) after the grease is lubricated. A jig 90 is used.

FIG. 2 is a perspective view of part A in FIG. A return wheel mounting portion 42 is provided at the lower part of the car 12, a fixed shaft support portion 44 is attached to the return wheel mounting portion 42, and the fixed shaft support portion 44 rotatably supports the return wheel 30. 46 is fixedly supported. A mounting plate 48 having a hole for passing the fixed shaft 46 is fixed to the fixed shaft support portion 44, and the mounting plate 48 is provided with a rope cover 50 for protecting the main rope 24 suspended from the return wheel 30. When the return wheel 30 rotates around the fixed shaft 46 in the direction of the arc arrow shown in FIG. 2, the main rope 24 moves in the direction indicated by the straight arrow.

3 is a front view of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line BC of FIG. 3 and 4 show the axial direction, the radial direction, and the circumferential direction of the return wheel 30. The axial direction is the direction in which the fixed shaft 46 extends. The radial direction is a direction extending radially from the center O of the fixed shaft 46 toward the outer peripheral side. The circumferential direction is the direction around the center O of the fixed shaft 46.

The return wheel 30 includes a sheave portion 60 on the outer peripheral side, a bearing portion 62 on the inner peripheral side, and a spoke ring 64 connecting between the sheave portion 60 and the bearing portion 62. The sheave portion 60 is an annular main rope suspension ring, and has a rope groove 61 for guiding the main rope 24 on the outer peripheral side. Since the main rope 24 is composed of four ropes as a set, the sheave portion 60 is provided with four rope grooves 61.

A ball bearing is attached to the bearing portion 62 as a bearing 80 on the inner diameter side. Ball bearings are an example for illustration purposes, and other types of rolling bearings may be used. An oil sump 82 is provided inside the bearing portion 62 in order to supply oil to the bearing 80. An oil filler port 84 for appropriately filling new grease from the outside is connected to the oil sump 82. Grease is an oil in which a lubricating oil (base oil) such as mineral oil or synthetic oil is held by a thickener and various additives are added. As described above, the bearing portion 62 is not a sealed bearing in which grease is pre-filled, but an open bearing that requires appropriate grease lubrication. A slight gap is provided between the inner peripheral surface of the bearing portion 62 and the outer peripheral surface of the fixed shaft 46 so that the return wheel 30 can rotate around the fixed shaft 46 via the bearing portion 62. After refueling the grease from the refueling port 84, the oil may seep out to the bearing end face 86 through this gap. The oil cleaning jig 90 is used to wipe off the oil exuded from the bearing end face 86.

The spoke ring 64 has an inner diameter side annular portion 66 connected to the outer peripheral surface of the bearing portion 62, an outer diameter side annular portion 68 connected to the inner peripheral surface of the sheave portion 60, an inner diameter side annular portion 66, and an outer diameter side annular portion. Includes a plurality of spokes 70 radially connected to and from 68. In the example of FIG. 3, the number of spokes 70 is five. Between the adjacent spokes 70 is a space for a hole 72. As shown in FIG. 3, the oil cleaning jig 90 is provided by utilizing the space of the punch hole 72 between the adjacent spokes 70. The refueling port 84 is provided in the inner diameter side annular portion 66 of the spoke ring 64, and the refueling passage between the refueling port 84 and the oil sump 82 is provided over the inner diameter side annular portion 66 and the bearing portion 62.

FIG. 5 is a diagram showing the relationship between the return wheel 30 and the oil cleaning jig 90 by omitting the return wheel mounting portion 42, the fixed shaft support portion 44, and the mounting plate 48 from FIG. The oil cleaning jig 90 includes a spoke-to-spoke fixing member 100, a cleaning member support portion 130, and a cleaning member 150.

The inter-spoke fixing member 100 extends in the circumferential direction of the return wheel 30 between the one-sided spokes 70a and the other-sided spokes 70b arranged adjacent to each other among the five spokes 70 of the spoke wheels 64. It is a member fixed to the spoke wheel 64 of the return wheel 30. The spoke-to-spoke fixing member 100 includes a main body portion 102, a spoke mounting portion 104 on one side which is a tip portion extending unilaterally from the main body portion 102 in the circumferential direction, and the other side along the circumferential direction from the main body portion 102. Includes the spoke mounting portion 106 on the other side, which is the tip portion extending to. The spoke mounting portion 104 on one side is mounted on the spoke 70a on one side, and the spoke mounting portion 106 on the other side is mounted on the spoke 70b on the other side.

The cleaning member support portion 130 is a member attached to the main body portion 102, which is an intermediate portion between one end and the other end of the spoke-to-spoke fixing member 100, and fixedly supports the cleaning member 150.

The cleaning member 150 includes an arm portion 152 extending from the cleaning member support portion 130 side to the bearing end surface 86 side, and an oil cleaning edge portion 154 attached to the tip end side of the arm portion 152.

FIG. 6 is a perspective view of a portion of the oil cleaning jig 90 in FIG. In FIG. 6, the axial direction, the circumferential direction, and the radial direction are shown, the directions opposite to each other in the circumferential direction are distinguished, one side and the other side are shown, and the directions opposite to each other in the axial direction are distinguished, and the outer peripheral side is distinguished. And the inner circumference side. One side is the one-side spoke 70a side in FIG. 5, and the other side is the other-side spoke 70b side in FIG. The outer peripheral side in the axial direction is the sheave portion 60 side in FIG. 5, and the inner peripheral side is the bearing portion 62 side.

The spoke-to-spoke fixing member 100 is a turnbuckle type fixing member. The main body 102 has a right-handed female threaded portion 108 on one end side and a left-handed female threaded portion 110 on the other end side. The spoke mounting portion 104 on one side has a male threaded portion 112 that meshes with the female threaded portion 108 of the right-hand thread. The spoke mounting portion 106 on the other side has a male threaded portion 114 that meshes with the female threaded portion 110 of the left-hand thread.

The threaded portion 112 of the spoke mounting portion 104 on one side is engaged with the female threaded portion 108 of the main body portion 102. Then, if the spoke mounting portion 104 is prevented from rotating and the main body portion 102 is rotated around the axis of the male threaded portion 112, the spoke mounting portion 104 can be attracted or moved away from the main body portion 102. Similarly, the threaded portion 114 of the spoke mounting portion 106 on the other side is engaged with the female threaded portion 110 of the main body portion 102. Then, if the spoke mounting portion 106 is rotated so as not to rotate and the main body portion 102 is rotated around the axis of the male threaded portion 114, the spoke mounting portion 106 can be attracted or moved away from the main body portion 102. Therefore, the main body 102 is rotated around the male threads 112 and 114 so that both the spoke mounting portion 104 on one side and the spoke mounting portion 106 on the other side do not rotate. Thereby, the distance between the spoke mounting portion 104 on one side and the spoke mounting portion 106 on the other side can be adjusted narrowly or widely due to the relationship between the right-handed screw and the left-handed screw.

In the example of FIG. 5, the spoke mounting portion 104 on one side is addressed to the spoke mounting portion 70a on one side of the return wheel 30, and the spoke mounting portion 106 on the other side is addressed to the spoke mounting portion 106 on the other side. Is rotated around the male threads 112 and 114. Thereby, the distance between the spoke mounting portion 104 on one side and the spoke mounting portion 106 on the other side in the spoke-to-spoke fixing member 100 can be adjusted. By setting the interval appropriately wide, both ends of the spoke-to-spoke fixing member 100 can be pressed against the one-side spoke 70a and the other-side spoke 70b, respectively, and the spoke-to-spoke fixing member 100 can be fixed with an appropriate pressing force.

The spoke mounting portion 104 on one side has a groove 116 that matches the outer shape of the spoke 70a on one side on one surface opposite to the surface on which the male thread portion 112 is mounted. Since the one-side spokes 70a are arranged radially from the bearing portion 62 of the return wheel 30 toward the sheave portion 60, the spokes are inclined at a predetermined angle from the longitudinal direction of the inter-spoke fixing member 100. Therefore, the groove depth of the groove 116 is set shallow on the outer peripheral side in the radial direction and deeper on the inner peripheral side. Similarly, the spoke mounting portion 106 on the other side has a groove 118 that matches the outer shape of the spoke 70b on the other side on the other side surface opposite to the surface on which the male thread portion 114 is mounted. The groove depth of the groove 118 is set shallow on the outer peripheral side in the radial direction and deeper on the inner peripheral side. As described above, the spoke mounting portion 104 on one side corresponds to the one-end mounting portion in the spoke-to-spoke fixing member 100, and the spoke mounting portion 106 on the other side corresponds to the other-end mounting portion in the spoke-to-spoke fixing member 100.

The cleaning member support portion 130 is composed of a set of cleaning member support portions 130a and 130b provided on both sides in the axial direction orthogonal to the circumferential direction in the main body portion 102 which is an intermediate portion of the spoke-to-spoke fixing member 100. In FIG. 6, with the main body 102 as a rectangular parallelepiped, the surface on which the female thread portions 108 and 110 are provided is a surface orthogonal to the circumferential direction, and the surface on which a set of cleaning member support portions 130a and 130b is attached is in the axial direction. It is an orthogonal plane. Since the basic structures of the cleaning member support portions 130a and 130b are the same, the cleaning member support portions 130a will be mainly described below.

The cleaning member support portion 130a has a male screw portion 132a attached to the main body portion 102. Further, it includes two nut portions 134a and 136a that mesh with the male thread portion 132a. The two nut portions 134a and 136a are used to sandwich and fix the bifurcated support portion 156a of the cleaning member 150a from both sides in the axial direction. A pin insertion hole 138a is provided at the tip of the male threaded portion 132a, and a split pin 140a is inserted. The cotter pin 140a prevents the nut portion 136a from loosening and coming off from the male threaded portion 132a, but the position of the nut portion 136a on the threaded portion 132a is also at the position of the pin insertion hole 138a and the cotter pin 140a. It will be decided. Therefore, the position of the nut portion 136a is set to the position of the split pin 140a, the bifurcated support portion 156a of the cleaning member 150a is arranged on the side opposite to the split pin 140a of the nut portion 136a, and the two nut portions 134a and 136a are bifurcated. The support portion 156a is sandwiched. Then, by tightening the nut portion 134a toward the nut portion 136a side, the cleaning member 150a is fixed to the male thread portion 132a.

The cleaning member support portion 130b also includes a male screw portion 132b, two nut portions 134b and 136b, a pin insertion hole 138b, and a split pin 140b, and has an effect of fixing the cleaning member 150b to the male screw portion 132b.

The cleaning member 150 also corresponds to the case where the cleaning member support portion 130 is a set of cleaning member support portions 130a and 130b, and a set of cleaning members 150a provided on both sides in the axial direction with respect to the spoke-to-spoke fixing member 100, respectively. , 150b. Since the basic structures of the cleaning members 150a and 150b are the same, the cleaning members 150a will be mainly described below.

The cleaning member 150a includes an arm portion 152a which is an elongated member extending from the cleaning member support portion 130a side to the bearing end surface 86 side. The end of the arm portion 152a on the cleaning member support portion 130a side is a bifurcated support portion 156a as described in relation to the cleaning member support portion 130a. The bifurcated support portion 156a is a portion having a bifurcated shape extending in the radial direction in parallel with each other with a gap for receiving the screw portion 132a of the cleaning member support portion 130a. The bifurcated shape has an appropriate length, and the fixing position along the radial direction determined by the two nut portions 134a and 136a of the cleaning member support portion 130a can be appropriately changed.

An edge portion 154a is provided on the tip end side of the arm portion 152a extending toward the bearing end surface 86 side. The edge portion 154a is a flat plate-shaped member made of an oil-repellent material, and has an uneven portion 158a for removing oil on a surface in contact with the bearing end surface 86. The edge portion 154a is attached to the arm portion 152a so that the flat plate-like surface is parallel to the circumferential direction. The fixing position between the bifurcated support portion 156a of the arm portion 152a and the cleaning member support portion 130a is adjusted along the radial direction, and the uneven portion 158a of the edge portion 154a is brought into contact with the bearing end face 86. When the return wheel 30 rotates in that state, the spoke-to-spoke fixing member 100 fixed to the spoke wheel 64 also rotates around the fixed shaft 46 together with the return wheel 30. Along with the rotation of the spoke-to-spoke fixing member 100, the cleaning member 150 also rotates around the fixed shaft 46, and the uneven portion 158a of the edge portion 154a also rotates around the fixed shaft 46 while abutting on the bearing end surface 86. The oil that has exuded to the bearing end surface 86 is scraped and wiped off by the uneven portion 158a, whereby the oil wiping cleaning is automatically performed.

The cleaning member 150b also includes an arm portion 152b, a bifurcated support portion 156b, an edge portion 154b, and an uneven portion 158b, and has an effect of wiping off oil exuded from the bearing end surface 86 for cleaning. Since the cleaning members 150a and 150b are arranged on both sides in the axial direction sandwiching the spoke-to-spoke fixing member 100, oil can be wiped off and cleaned at the same time on the bearing end faces 86 at both ends along the axial direction of the bearing portion 62. ..

In the above, a turnbuckle structure is used to fix the inter-spoke fixing member 100 to the one-side spoke 70a and the other-side spoke 70b of the return wheel 30. The fixing method is performed by pressing the spoke mounting portions 104 and 106 provided at one end and the other end, which are both ends of the spoke-to-spoke fixing member 100, against the one-side spoke 70a and the other-side spoke 70b, respectively. Instead of the pressing and fixing method using this turnbuckle structure, a spoke mounting portion having a shape that surrounds the outer peripheral surface of the spoke 70 and can be opened and closed may be used.

FIG. 7 is a diagram showing an example of some spoke mounting portions. 7 (a) is a diagram showing the spoke mounting portion 106 described in FIG. 6, and FIGS. 7 (b), (c), and (d) are spoke mounting having a shape that surrounds the outer peripheral surface of the spoke 70 and can be opened and closed. Units 160, 170, 180 are shown. These figures are cross-sectional views along the circumferential direction. In these figures, the thickness of the sheave portion 60 is shown using two two-dot chain lines, and the cross-sectional shape of the spoke 70 is shown with diagonal lines. The spoke 70 has a stepped structure and has a thin wall thickness on the punched hole 72 side. The thickness of the spoke mounting portions 160, 170, 180 along the axial direction is within the thickness range of the sheave portion 60 so that the spoke mounting portions do not interfere with other components when the return wheel 30 rotates. Need to fit.

FIG. 7A is a diagram showing the spoke mounting portion 106 described in FIG. 6, in which the bottom portion of the groove 118 of the spoke mounting portion 106 is pressed against the thin portion of the spoke 70 by the pressing force F. The same applies to the spoke mounting portion 104.

The spoke mounting portion 160 of FIG. 7B has a roll-in type cross section in which a portion covering the upper surface side and a portion covering the lower surface side of the outer peripheral surface of the spoke 70 overlap each other. The engaging portion 162 is provided at a portion where the portion covering the upper surface side and the portion covering the lower surface side overlap each other. Utilizing the elasticity of the portion covering the lower surface side, the engaging portion 162 is removed, and the spoke 70 is sandwiched between the portion covering the upper surface side and the portion covering the lower surface side, and then the engaging portion 162 is used. Fix it. As a result, the spoke mounting portion 160 has an annular shape surrounding the spoke 70 and is fixed to the spoke 70.

The spoke mounting portion 170 of FIG. 7C includes a member 172 having a portion that covers one side end surface, an upper surface side, and a lower surface side of the outer peripheral surface of the spoke 70, and a member 174 that covers the other side end surface of the spoke 70. Have. Then, the end side of the member 172 and the end side of the member 174 are overlapped and joined by the screwing structures 176 and 178. As a result, the spoke mounting portion 170 has an annular shape surrounding the spoke 70 and is fixed to the spoke 70.

The spoke mounting portion 180 of FIG. 7D includes a member 182 having a portion that covers one side end surface, an upper surface side, and a lower surface side of the outer peripheral surface of the spoke 70, and a member 184 that covers the other side end surface of the spoke 70. Have. A male threaded portion 186 is provided at the tip of the member that covers the lower surface side of the member 182. The member 184 has a female threaded portion 188 that meshes with the male threaded portion 186 and has a portion extending in the circumferential direction and a portion perpendicular to the female threaded portion 186 and extending in the axial direction. When the female threaded portion 188 is engaged with the male threaded portion 186, the axially extending portion rotates around the threaded shaft so that the other end surface of the spoke 70 is in an open state or a state of covering. By fitting the spoke mounting portion 180 into the spoke 70 in the open state and appropriately screwing the spoke mounting portion 180 in the covered state, the spoke mounting portion 180 has an annular shape surrounding the spoke 70 and is fixed to the spoke 70.

The spoke mounting portions 160, 170, and 180 all have an annular shape surrounding the spoke 70 and are fixed to the spoke 70. The spoke-to-spoke fixing member using the spoke mounting portions 160, 170, 180 of this structure does not have a turnbuckle structure and simply extends in the circumferential direction of the return wheel 30 and has spokes at one end and the other end, respectively. It is configured to have mounting portions 160, 170, 180.

According to the oil cleaning jig 90 in the return wheel of the elevator having the above configuration, the oil cleaning jig 90 is fixed to the adjacent spokes 70 of the return wheel 30. The cleaning member support portion 130 is attached to the inter-spoke fixing member 100 attached between the spokes. Then, a cleaning member 150 extending from the cleaning member support portion 130 toward the bearing end surface 86 and having an oil cleaning edge portion 154 on the tip end side is provided. When the return wheel 30 rotates, the cleaning member 150 also rotates integrally with the rotation, whereby the edge portion 154 wipes the oil over the entire circumference on the bearing end face 86 side. As the return wheel 30 rotates, the oil on the bearing end face 86 side is automatically wiped off and cleaned, so that no special work is required.

10 elevators, 14 hoistways, 16 floors, 18 pits, 20 hoisting machines, 24 (main) ropes, 26,27 car guide rails, 28,29 balanced weight guide rails, 30 (under the car) return wheels, 31 Car Spokes, 32, 33, 34 Top Spokes, 36 Balanced Spokes, 38 One Side Fixed Body, 40 Another Side Fixed Body, 42 Return Spoke Mounting Part, 44 Fixed Shaft Support, 46 Fixed Shaft, 48 mounting plate, 50 rope cover, 60 sheaves, 61 rope grooves, 62 bearings, 64 spoke wheels, 66 inner diameter side annular parts, 68 outer diameter side annular parts, 70 spokes, 70a one side spoke, 70b other side spokes, 72 Drilling holes, 80 bearings, 82 oil reservoirs, 84 filler ports, 86 bearing end faces, 90 oil cleaning jigs (in elevator return wheels), 100-spoke fixing members, 102 body parts, 104, 106, 160, 170, 180 Spoke mounting part, 108,110,188 Female thread part, 112,114,132a, 132b, 186 Male thread part, 116,118 groove, 130,130a, 130b Cleaning member support part, 134a, 134b, 136a, 136b Nut Parts, 138a, 138b Pin insertion holes, 140a, 140b split pins, 150, 150a, 150b Cleaning members, 152, 152a, 152b Arm parts, 154, 154a, 154b Edge parts, 156a, 156b Bifurcated support parts, 158a, 158b Unevenness Parts, 162 engaging parts, 172,174,182,184 members, 176,178 screwed structures.

Claims (6)

It is a cleaning jig that wipes off excess oil that has exuded to the end face side of the bearing after refueling the bearing of the return wheel of the elevator rope.
The return between the one-side spoke and the other-side spoke arranged adjacent to each other among a plurality of spokes radially connecting between the sheave portion on the outer peripheral side and the bearing portion on the inner peripheral side of the return wheel. A spoke-to-spoke fixing member that extends in the circumferential direction of the vehicle and has spoke mounting portions at one end and the other end, respectively.
A cleaning member support portion attached to an intermediate portion between one end and the other end of the spoke-to-spoke fixing member,
A cleaning member having an arm portion extending from the cleaning member support portion to the bearing end face side and an oil cleaning edge portion provided on the tip end side of the arm portion.
An oil cleaning jig in an elevator return wheel. The edge portion is
The oil cleaning jig for a return wheel of an elevator according to claim 1, which is made of an oil-repellent material and has irregularities for removing oil. The spoke-to-spoke fixing member is
A main body having a right-handed female thread on one end and a left-handed female thread on the other end.
A one-end mounting portion having a male threaded portion that meshes with the female threaded portion on one end side of the main body portion at the other end and the spoke mounting portion at one end.
The other end mounting portion having a male threaded portion that meshes with the female threaded portion on the other end side of the main body portion at one end and the spoke mounting portion at the other end.
The oil cleaning jig in the return wheel of the elevator according to claim 1, which is a turnbuckle type member comprising the above. The cleaning member support portion
The oil cleaning jig for a return wheel of an elevator according to claim 1, which is a set of support members attached to both sides in an axial direction orthogonal to the circumferential direction in an intermediate portion of the spoke-to-spoke fixing member. The spoke mounting portion is
The oil cleaning jig for a return wheel of an elevator according to claim 1, which has a groove for accommodating the radial outer peripheral surface of the spoke. The spoke mounting portion is
The oil cleaning jig for a return wheel of an elevator according to claim 1, which has a shape that can be opened and closed by surrounding the outer peripheral surface of the spoke.

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