CN111824899B - Elevator and compensating rope support mechanism - Google Patents
Elevator and compensating rope support mechanism Download PDFInfo
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- CN111824899B CN111824899B CN202010282828.6A CN202010282828A CN111824899B CN 111824899 B CN111824899 B CN 111824899B CN 202010282828 A CN202010282828 A CN 202010282828A CN 111824899 B CN111824899 B CN 111824899B
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- Prior art keywords
- rope
- compensating
- holder
- length
- holding hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention provides an elevator and a compensating rope supporting mechanism, which can improve the strength of a mounting plate for supporting a compensating rope and simplify the installation operation of the compensating rope. The compensating rope support mechanism is provided with a rope holder (12) for holding one end (131a) of a compensating rope (131), and a mounting plate (13). A holding hole (21) is formed in the mounting plate (13). The opening length of the portion where the interval between the openings of the holding hole (21) is the longest is set longer than the long side length (L3) of the cord holder (12). The opening length (L1) of the portion where the interval between the openings of the holding hole (21) is shortest is set to be longer than the shorter short side length (L2) of the rope seat and shorter than the long side length (L3) of the rope seat.
Description
Technical Field
The present invention relates to an elevator having a compensating rope connected to a car and a counterweight, and a compensating rope supporting mechanism.
Background
Conventionally, in an elevator, when the moving distance in the lifting direction of a car and a counterweight becomes long, the length from a hoist to the car of a main rope connecting the car and the counterweight changes depending on the position of the car. As a result, the difference between the weight of the main rope applied to the car side of the hoist and the weight of the counterweight side becomes large due to the weight of the main rope itself. In order to reduce the difference between the weight of the main rope on the car side and the weight of the main rope on the counterweight side, a compensating rope is provided.
As a technique for attaching the end portion of the compensating rope to the car, for example, there is a technique described in patent document 1. Patent document 1 describes the following technique: an installation platform for installing the compensation rope is arranged at a position opposite to a side plate erected from a car bottom plate of the car, and the compensation rope is installed on the installation platform from the inside of the car under the state that the side plate is not assembled on the car bottom plate.
Fig. 8 is a perspective view showing a compensating rope supporting mechanism that supports end portions of a compensating rope of a conventional example.
As shown in fig. 8, a conventional support mechanism 300 includes a wedge member 301, a rope holder 302, an attachment plate 303, and a rope clamp 304. An end of the compensating rope 131 is wound around the wedge member 301. The end of the compensating rope 131 wound around the wedge member 301 is attached to the rope holder 302. The end portions of the compensating ropes 131 are folded back and overlapped, and are fastened and connected by the rope clamp 304.
The mounting plate 303 is fixed to a pair of support brackets provided to the car and the counterweight. The mounting plate 303 is formed with a holding hole 307 for holding the rope holder 302 to which the end of the compensating rope 131 is attached. Further, the mounting plate 303 is formed with a plurality of cutouts 308. Therefore, the mounting plate 303 is formed in a comb-tooth shape. The cutout 308 communicates with the holding hole 307. From this cut 308, the end of the compensating rope 131 is inserted into the holding hole 307.
Further, a reinforcing member 305 and a retaining reinforcing member 310 are fixed to the mounting plate 303. The anti-slip reinforcing member 310 is fixed so as to cover the upper and lower portions of the slit 308 in the vertical direction, and prevents the compensating rope 131 from slipping out of the slit 308.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2003-128361
However, in the conventional compensating rope support mechanism, the strength of the attachment plate 303 is reduced by the notch. In addition, in order to secure the strength of the mounting plate 303 and prevent the compensating rope 131 from coming off the mounting plate 303, the retaining reinforcement member 310 needs to be fixed to the mounting plate 303, which increases the number of components. Further, the retaining reinforcement member 310 can be fixed only after the rope holder 302 is attached to the attachment plate 303, and therefore, the attachment work of the compensating rope becomes very troublesome.
Disclosure of Invention
Problems to be solved by the invention
In view of the above-described problems, an object of the present invention is to provide an elevator and a compensating rope supporting mechanism that can increase the strength of a mounting plate that supports a compensating rope and can simplify the installation work of the compensating rope.
Means for solving the problems
In order to solve the above problems and achieve the object, an elevator includes a car, a counterweight, a compensation rope, and a compensation rope support mechanism. The car moves up and down in an elevator shaft provided in a building structure. The counterweight is connected to the car via a main rope. One end of the compensating rope is connected to the car, and the other end opposite to the one end is connected to the counterweight. The compensating rope support mechanism connects one end of the compensating rope to the car or the other end to the counterweight.
The compensating rope support mechanism comprises: a rope holder into which one end portion or the other end portion of the compensating rope is inserted and which holds the one end portion or the other end portion; and a mounting plate provided to the car or the counterweight. The mounting plate is formed with a holding hole portion into which the cord holder is inserted and which holds the cord holder.
The opening length of the portion of the holding hole portion having the longest opening interval is set longer than the length of the long side of the rope seat having the longest length on the horizontal projection plane. The opening length of the portion of the holding hole portion where the interval between the openings is the shortest is set to be longer than the short side length of the rope holder where the length is the shortest on the horizontal projection plane and shorter than the long side length of the rope holder.
In addition, the compensation rope support mechanism described above is applied to the compensation rope support mechanism.
Effects of the invention
According to the elevator and the compensating rope supporting mechanism having the above-described configuration, the strength of the mounting plate for supporting the compensating rope can be increased, and the installation work of the compensating rope can be simplified.
Drawings
Fig. 1 is a schematic configuration diagram showing an elevator according to a first embodiment.
Fig. 2 is a perspective view showing the compensating rope support mechanism of the first embodiment.
Fig. 3 is a perspective view showing an installation operation of the compensation rope in the compensation rope support mechanism according to the first embodiment.
Fig. 4 is a sectional view showing the compensating rope support mechanism of the first embodiment.
Fig. 5 is a sectional view showing a compensating rope support mechanism of a second embodiment.
Fig. 6 is a sectional view showing a compensating rope support mechanism of a third embodiment.
Fig. 7 is a perspective view showing a compensating rope support mechanism of a fourth embodiment.
Fig. 8 is a perspective view showing a car-side end of a compensating rope of an elevator of a conventional example.
Description of reference numerals:
Detailed Description
Hereinafter, an embodiment of an elevator and a compensating rope support mechanism will be described with reference to fig. 1 to 7. In the drawings, the same reference numerals are given to the common members.
1. First embodiment example
1-1. Structure of elevator
First, the structure of an elevator according to a first embodiment (hereinafter, referred to as "this example") will be described with reference to fig. 1.
Fig. 1 is a schematic configuration diagram showing a configuration example of an elevator of this example.
As shown in fig. 1, an elevator 1 of this example is provided in a hoistway 110 formed in a building structure. The elevator 1 includes a car 120 that moves up and down in an elevator shaft 110 and loads people and goods, a main rope 130, a counterweight 140, and a hoisting machine 100. A machine room 160 is provided at the top of the elevation path 110. The elevator 1 further includes a plurality of compensating ropes 131, a compensating pulley 132 around which the compensating ropes 131 are wound, a compensating rope supporting mechanism 10 that supports the compensating ropes 131, and an adjusting mechanism 190.
The hoist 100 is disposed in the machine room 160, and winds the main rope 130 to raise and lower the car 120. In addition, a deflector sheave 150 for erecting the main rope 130 is provided near the hoist 100.
One axial end of the main rope 130 is connected to an upper portion of the car 120, and the other axial end of the main rope 130 is connected to an upper portion of the counterweight 140. Therefore, the car 120 is coupled to the counterweight 140 via the main rope 130.
By driving the hoist 100, the car 120 moves up and down in the elevator shaft 110 along a car-side guide rail not shown, and the counterweight 140 moves up and down in the elevator shaft 110 along a counterweight-side guide rail not shown. The direction in which the car 120 and the counterweight 140 move up and down is defined as the vertical direction. In addition, the vertical direction is parallel to the vertical direction.
In the elevator 1, when the moving distance in the lifting direction of the car 120 and the counterweight 140 becomes long, the length of the main rope 130 from the hoisting machine 100 to the car 120 changes depending on the position of the car 120. As a result, the difference between the weight of the main rope 130 on the car 120 side and the weight of the main rope 130 on the counterweight 140 side with respect to the hoisting machine 100 is increased by the weight of the main rope 130 itself. Therefore, in the elevator 1 of this example, the compensating rope 131 is provided to reduce the difference between the weight of the main rope 130 on the car 120 side and the weight of the counterweight 140 side.
The compensating rope 131 is connected to the car 120 and the counterweight 140. One end 131a of the compensating rope 131 is connected to a bracket 121 provided at a lower portion in the vertical direction of the car 120 via a compensating rope supporting mechanism 10 described later. The other end 131b opposite to the one end 131a of the compensating rope 131 is connected to the side surface of the counterweight 140 via the adjustment mechanism 190. The adjusting mechanism 190 has an elastic member such as a coil spring, and adjusts the tension of the compensating rope 131.
The compensating rope 131 is suspended from the car 120 and the counterweight 140 downward of the hoistway 110. Further, an intermediate portion 131c of the compensating rope 131 hanging downward of the ascending/descending duct 110 is wound around the compensating pulley 132. The compensating pulley 132 is rotatably disposed in a groove provided below the vertical direction of the ascending/descending path 110.
1-2 compensating rope support mechanism
Next, the structure of the compensating rope support mechanism 10 will be described with reference to fig. 2 to 3.
Fig. 2 is a perspective view showing the compensation rope support mechanism 10, fig. 3 is a perspective view showing an installation operation of the compensation rope 131 of the compensation rope support mechanism 10, and fig. 4 is a sectional view showing the compensation rope support mechanism.
As shown in fig. 2 to 4, the compensating rope support mechanism 10 includes a wedge member 11, a rope mount 12, a mounting plate 13, and a rope clamp 14.
The wedge member 11 is formed in a substantially triangular shape, and one end 131a of the compensation rope 131 is wound therearound. One end 131a of the compensation rope 131 is folded back by being wound around the wedge member 11. One end 131a of the compensating rope 131 is folded back and overlapped, and fastened and connected by the rope clamp 14.
The rope holder 12 is formed in a quadrangular prism shape. The rope holder 12 has two short side portions 12a, 12a and two long side portions 12b, 12 b. The two short side portions 12a, 12a face each other, and the two long side portions 12b, 12b face each other. The two short side portions 12a, 12a and the two long side portions 12b, 12b are arranged in parallel to the vertical direction.
An insertion hole 16 penetrating in the vertical direction is formed in the cord holder 12. As shown in fig. 3, the insertion hole 16 is formed in a tapered shape having an opening diameter that continuously decreases as it goes downward from above in the vertical direction of the cord holder 12. This prevents the one end 131a of the compensation rope 131 inserted into the insertion hole 16 and the wedge member 11 from coming out of the insertion hole 16.
A fitting projection 17 is formed at a lower end portion in the vertical direction of the rope holder 12. The fitting projection 17 projects downward in the vertical direction from the lower surface portion 12c of the lower end portion of the rope holder 12. The fitting projection 17 is formed in a rectangular shape. The horizontal projection area of the fitting projection 17 is set smaller than the horizontal projection area of the rope holder 12.
Further, the fitting projection 17 is formed with an insertion hole 17a penetrating in the vertical direction. The insertion hole 17a communicates with the insertion hole 16 of the cord holder 12. One end 131a of a compensation rope 131 wound around the wedge member 11 is inserted into the insertion hole 16 of the rope holder 12 and the insertion hole 17a of the fitting projection 17. Thereby, the one end 131a of the compensating rope 131 is held by the rope holder 12 and the wedge member 11. The rope holder 12 holding the one end 131a of the compensating rope 131 is attached to the attachment plate 13.
As shown in fig. 2 and 3, the mounting plate 13 is fixed to a pair of brackets 121 and 121 provided on a lower portion of the car 120. The mounting plate 13 is disposed between the pair of brackets 121 and 121 to bridge the pair of brackets 121 and 121. The mounting plate 13 is formed in a substantially flat plate shape.
The longitudinal direction of the attachment plate 13 is arranged parallel to the direction in which the pair of brackets 121 and 121 face each other. The short side direction of the attachment plate 13 is orthogonal to the direction in which the pair of brackets 121 and 121 face each other and is orthogonal to the vertical direction. A reinforcing member 15 is fixed to a lower portion of the attachment plate 13 in the vertical direction by fixing means such as welding or fixing bolts.
The attachment plate 13 is formed with a holding hole 21 into which the rope holder 12 is inserted and which holds the rope holder 12. The holding hole 21 vertically penetrates the attachment plate 13. The holding hole 21 is an elongated hole continuously opened from one end portion to the other end portion in the longitudinal direction of the attachment plate 13. The length of the longitudinal opening of the holding hole 21 is longer than the horizontal length (hereinafter referred to as "long side length") L3 of the long side portion 12b of the rope holder 12. That is, the opening of the holding hole 21 is formed so that the long side opening length of the long side portion having the longest opening interval is longer than the long side length L3 of the cord holder 12.
The holding hole 21 has a plurality of fitting holes 22, a plurality of partition projections 23, and an insertion portion 24. The insertion portions 24 are formed at both longitudinal ends of the holding hole portion 21. The fitting holes 22 are formed at predetermined intervals along the longitudinal direction of the holding hole 21. The fitting holes 22 are formed in accordance with the number of the compensating ropes 131 attached to the attachment plate 13. The fitting protrusion 17 of the rope holder 12 is fitted into the fitting hole 22.
The partition protrusion 23 is formed between the adjacent two fitting holes 22. The partition projection 23 projects from the wall surface of the holding hole 21 toward the center in the short-side direction. The partition projection 23 partitions the fitting projection 17 of the rope holder 12 fitted in the fitting hole 22.
The length L1 in the short side direction of the holding hole 21, i.e., the length L1 of the space between the two partitioning projections 23, 23 facing each other, is set to be longer than the length L2 in the horizontal direction of the short side portion 12a of the rope holder 12 (hereinafter referred to as "short side length") (L1 > L2). That is, the short-side opening length L1 of the short-side portion having the shortest opening distance in the holding hole 21 is set to be longer than the length L2 of the portion of the rope holder 12 having the shortest length in the horizontal projection plane.
The length L1 in the short side direction of the holding hole 21 is set to be shorter than the length L3 of the long side of the rope holder 12 (L1 < L3). That is, the short-side opening length L1 of the holding hole 21 is set shorter than the length L3 of the portion of the rope holder 12 that is longest in the horizontal projection plane. The length L4 in the longitudinal direction of the fitting hole 22 is set to be shorter than the long side length L3 of the rope holder 12 (L4 < L3).
The length L5 of the insertion portion 24 in the longitudinal direction from the fitting hole 22 is set to be longer than the length obtained by subtracting the short side length L2 of the rope holder 12 from the long side length L3 of the rope holder 12. The insertion portion 24 is opened so that the rope holder 12 can be inserted therein in a state where the long-side portion 12b of the rope holder 12 is parallel to the longitudinal direction of the holding hole portion 21.
1-3 examples of setting actions of compensating ropes
Next, an example of the installation operation of the compensation rope 131 in the compensation rope support mechanism 10 having the above-described configuration will be described.
In advance, one end 131a of the compensation rope 131 is wound around the wedge member 11 and folded back. The compensation rope 131 wound with the wedge member 11 is inserted into the insertion hole 16 of the rope holder 12. Then, the folded-back one end portions 131a of the compensating ropes 131 are overlapped and fastened by the rope clamp 14. Since the insertion hole 16 is formed in a tapered shape, the one end 131a of the compensation cord 131 inserted into the insertion hole 16 and the wedge member 11 do not come out of the insertion hole 16.
Next, as shown in fig. 3, the rope holder 12 and the compensating rope 131 are inserted from below in the vertical direction of the holding hole portion 21 of the attachment plate 13. The reinforcing member 15 is fixed to the attachment plate 13 in advance, and the attachment plate 13 is fixed to the pair of brackets 121 and 121.
In a state where the short side portion 12a of the rope holder 12 is parallel to the short side direction of the attachment plate 13, the rope holder 12 and the compensating rope 131 are inserted into the holding hole portion 21. As described above, the short side length L2 of the rope holder 12 is set shorter than the length L1 of the holding hole 21 in the short side direction. Therefore, the rope holder 12 can be inserted into the holding hole 21 without interfering with the side wall of the holding hole 21 or the partition projection 23.
Next, when the fitting projection 17, which is the lower end portion in the vertical direction of the rope holder 12, completely passes above the holding hole portion 21, the rope holder 12 is rotated by substantially 90 degrees in the horizontal direction. The short side portion 12a of the rope holder 12 is orthogonal to the short side direction of the holding hole portion 21.
Next, as shown in fig. 4, the fitting protrusion 17, which is a part of the rope holder 12, is inserted into the fitting hole 22 of the holding hole portion 21, and the fitting hole 22 is fitted to the fitting protrusion 17. The fitting protrusion 17 and the fitting hole 22 are formed in a rectangular shape. Thus, when a load in the pulling direction is applied to the compensation rope 131, the compensation rope 131 can be prevented from rotating.
As described above, the long side length L3 of the rope holder 12 is set to be longer than the length L1 in the short side direction of the holding hole portion 21 and the length L4 in the longitudinal direction of the fitting hole 22. Therefore, as shown in fig. 4, the lower surface portion 12c of the rope holder 12 abuts on the upper surface portion 13a of the attachment plate 13 in the vertical direction. Thereby, the one end 131a of the compensating rope 131 can be fixed to the lower portion of the car 120 via the rope holder 12 and the attachment plate 13. Since the compensating rope 131 is pulled downward in the vertical direction by a predetermined tension, the rope holder 12 and the one end 131a of the compensating rope 131 do not come off from the attachment plate 13.
Then, the above steps are repeated to attach the plurality of compensating ropes 131 and the rope reel 12 to the attachment plate 13. In addition, insertion portions 24 through which the rope holder 12 can be inserted are provided at both longitudinal ends of the holding hole portion 21. Therefore, the end of the rope holder 12, which is mounted to the mounting plate 13 last among the plurality of rope holders 12, can be mounted to the mounting plate 13 by passing the end through the insertion portion 24.
According to the compensating rope support mechanism 10 of this example, the compensating rope 131 and the rope socket 12 can be provided on the attachment plate 13 without providing a notch that penetrates the holding hole portion 21 and the fitting hole 22. Therefore, the strength of the mounting plate 13 can be prevented from being reduced by the notch, and the strength of the mounting plate 13 can be improved. Further, since the retaining reinforcement member for covering the notch provided in the mounting plate 13 is not required, the number of components can be reduced, and the installation work of the compensation rope 131 can be simplified.
The reinforcing member 15 can be fixed to the attachment plate 13 in advance before the compensating rope 131 and the rope holder 12 are installed on the attachment plate 13 and before the attachment plate 13 is fixed to the pair of brackets 121 and 121. Therefore, it is not necessary to perform the work of fixing the reinforcing member 15 to the attachment plate 13 at the work site where the compensation rope 131 is installed, and the installation work of the compensation rope 131 can be simplified. When the strength of the mounting plate 13 satisfies the required strength, the reinforcing member 15 may not be provided.
In the present example, the fitting projection 17 is formed in a substantially rectangular shape, but the present invention is not limited to this. The fitting protrusion 17 is formed in various other shapes such as a hexagonal prism shape and an elliptical cylinder shape. In order to prevent the rotation of the compensating rope 131, the fitting projection 17 is preferably shaped such that the length from the central axis through which the compensating rope 131 passes to the outer periphery is not constant, that is, such that it has a shape having portions with different lengths from the central axis to the outer periphery, such as a square or an ellipse.
Alternatively, the fitting projection 17 may be formed in a cylindrical shape, and a convex portion for preventing rotation may be provided on a side surface thereof. The opening shape of the fitting hole 22 is appropriately formed to match the shape of the fitting projection 17.
In addition, when the frictional force at the time of fitting the fitting protrusion 17 and the fitting hole 22 is larger than the torque generated at the time of rotating the compensation rope 131, the fitting protrusion 17 may be formed in a cylindrical shape.
In the present example, the rope holder 12 is formed in a quadrangular prism shape, but the present invention is not limited thereto. The rope base 12 may be formed in various other shapes such as an elliptic cylinder shape. Further, in order to insert the rope holder 12 into the holding hole 21 and to bring the lower surface portion 12c into contact with the upper surface portion 13a of the attachment plate 13, it is preferable that the length from the center axis to the outer periphery is not all constant. That is, the rope holder 12 is preferably shaped to have portions having different lengths from the central axis to the outer periphery, such as a rectangle or an ellipse.
In addition, although the example in which the partition projection 23 is provided in the holding hole portion 21 has been described, the partition projection 23 may not be provided. Further, the example in which the insertion portion 24 is formed at both ends of the holding hole 21 has been described, but the present invention is not limited thereto, and the insertion portion 24 may be formed at least at one end in the longitudinal direction of the holding hole 21.
In the present example, the example in which the rope base 12 is rotated by 90 degrees when the rope base 12 is attached to the attachment plate 13 has been described, but the angle of rotating the rope base 12 is not limited to 90 degrees. That is, after the rope holder 12 is inserted into the holding hole portion 21, when the rope holder 12 is rotated, the fitting protrusion and the fitting hole are fitted to each other, and the lower surface portion 12c of the rope holder 12 is allowed to abut against the attachment plate 13.
2. Second embodiment example
Next, a compensating rope supporting mechanism according to a second embodiment will be described with reference to fig. 5.
Fig. 5 is a sectional view showing a compensating rope support mechanism of a second embodiment.
The compensating rope support mechanism 30 of the second embodiment differs from the compensating rope support mechanism 10 of the first embodiment in the structure in which the rope housing is fitted to the attachment plate. Therefore, the same reference numerals are given to the portions common to the compensating rope support mechanism 10 of the first embodiment, and redundant description is omitted.
As shown in fig. 5, the compensating rope support mechanism 30 includes a wedge member 11, a rope holder 32, a mounting plate 33, and a rope clamp, not shown. The rope holder 32 is formed in a substantially quadrangular prism shape. The cord holder 32 is formed with an insertion hole 36 having a tapered opening. One end 131a of the compensation rope 131 wound around the wedge member 11 is inserted into the insertion hole 36 of the rope holder 32.
The attachment plate 33 is formed with a fitting hole 43 constituting a holding hole portion, and a communication hole 41 communicating with the fitting hole 43. The fitting hole 43 is formed in the upper surface portion 33a of the mounting plate 33, and is formed to have a predetermined length from the upper surface portion 33a downward in the vertical direction. The lower portion of the rope holder 32 in the vertical direction is fitted into the fitting hole 43.
The communication hole 41 is formed continuously from the lower end portion in the vertical direction of the fitting hole 43. The opening area of the communication hole 41 is set smaller than the opening area of the fitting hole 43. Therefore, a stepped surface 42 is formed at a portion where the communication hole 41 and the fitting hole 43 are connected. The lower surface portion 32c of the rope holder 32 fitted in the fitting hole 43 abuts on the stepped surface 42. Thereby, the one end 131a of the compensating rope 131 can be fixed to the car 120 via the rope holder 32 and the mounting plate 33.
The other structures are the same as those of the compensating rope supporting mechanism 10 of the first embodiment, and therefore, their description is omitted. The compensating rope support mechanism 30 of the second embodiment also provides the same operational advantages as the compensating rope support mechanism 10 of the first embodiment described above.
In the compensating rope support mechanism 10 according to the first embodiment, the fitting projection 17 having a smaller horizontal projection area than the rope housing 12 is formed, so that the opening area of the fitting hole 22 into which the fitting projection 17 is fitted can be reduced. As a result, according to the compensating rope support mechanism 10 of the first embodiment, the mounting plate 13 on which the fitting hole 22 is formed can be made smaller than the compensating rope support mechanism 30 of the second embodiment, and the overall support mechanism can be made smaller.
3. Third embodiment example
Next, a compensating rope supporting mechanism according to a third embodiment will be described with reference to fig. 6.
Fig. 6 is a sectional view showing a compensating rope support mechanism of a third embodiment.
The compensating rope support mechanism 50 of this third embodiment differs from the compensating rope support mechanism 10 of the first embodiment in the manner in which the ends of the compensating ropes 131 are supported. In the compensating rope supporting mechanism 10 according to the first embodiment, the compensating rope supporting mechanism 50 according to the third embodiment is a so-called babbitt metal type in which the end portion of the compensating rope 131 is held by molten metal, in contrast to a structure in which the end portion of the compensating rope 131 is held by a wedge type using the wedge member 11. Therefore, the same reference numerals are given to the portions common to the compensating rope support mechanism 10 of the first embodiment, and redundant description is omitted.
As shown in fig. 6, the compensating rope support mechanism 50 has a rope socket 52 and a mounting plate 13. The structure of the mounting plate 13 is the same as that of the mounting plate 13 of the first embodiment, and therefore, the description thereof is omitted here.
The rope holder 52 is formed in a substantially quadrangular prism shape. An insertion hole 56 penetrating in the vertical direction is formed in the cord holder 52. The insertion hole 56 is formed in a tapered shape having an opening diameter that continuously decreases as it goes downward from above in the vertical direction of the cord holder 52.
A fitting projection 57 is formed at a lower end portion in the vertical direction of the rope holder 52. The fitting projection 57 is fitted into the fitting hole 22 formed in the mounting plate 13.
One end 131a of the compensating rope 131 is inserted into the insertion hole 56 of the rope holder 52 from the lower side in the vertical direction. One end 131a of the compensating rope 131 is untied in the insertion hole 56. The molten metal 51 flows into the insertion hole 56 of the cord holder 52. Thereby, the one end 131a of the compensating rope 131 is fixed in the insertion hole 56 of the rope holder 52 by the metal 51.
The other structures are the same as those of the compensating rope supporting mechanism 10 of the first embodiment, and therefore, their description is omitted. The compensating rope support mechanism 50 of the third embodiment, which is made of the babbitt metal type, can also provide the same operational effects as those of the compensating rope support mechanism 10 of the first embodiment described above.
The babbitt formula requires a high skill, and may cause variations in finished products depending on the skill of the operator. Therefore, in consideration of workability, the compensating rope supporting mechanisms 10 and 30 of the first and second embodiments configured by the wedge type are preferable to the compensating rope supporting mechanism 50 of the third embodiment configured by the babbitt type.
4. Example of the fourth embodiment
Next, a compensating rope supporting mechanism according to a fourth embodiment will be described with reference to fig. 7.
Fig. 7 is a perspective view showing a compensating rope support mechanism of a fourth embodiment.
The compensating rope support mechanism 60 of the fourth embodiment differs from the compensating rope support mechanism 10 of the first embodiment in the structure of the mounting plate. Therefore, the mounting plate will be described here, and the same reference numerals are given to the portions common to the compensating rope support mechanism 10 of the first embodiment, and the description thereof will be repeated.
As shown in fig. 7, the compensating rope support mechanism 60 includes a wedge member 11, a rope holder 12, an attachment plate 63 fixed to a pair of brackets 121, a rope clamp 14, and a reinforcing member 15.
The mounting plate 63 is formed in a substantially flat plate shape. The attachment plate 63 has a plurality of holding hole portions 71 formed at intervals in the longitudinal direction. In addition, the adjacent two holding hole portions 71 are partitioned by a partition wall 73.
The holding hole portion 71 is formed with a fitting hole 72 into which the fitting projection 17 of the rope holder 12 is fitted, and two insertion portions 74, 74. The two insertion portions 74, 74 are formed at both ends of the fitting hole 72 in the short direction.
The length L1 in the short side direction of the holding hole 71, that is, the short side opening length L1 of the portion having the shortest interval is set to be longer than the short side length L2 (see fig. 2) of the rope holder 12. The length L1 in the short side direction of the holding hole 71 is set shorter than the length L3 (see fig. 2) of the long side of the rope holder 12. The length L4 in the longitudinal direction of the fitting hole 72 is set shorter than the length L3 of the long side of the cord holder 12.
The long-side opening length L6 of the portion where the interval between the openings of the holding hole 71 is the longest, that is, the length L6 from the insertion portion 74 at one end to the insertion portion 74 at the other end in the longitudinal direction is set to be longer than the long-side length L3 of the rope holder 12 (L6 > L3). Therefore, the rope holder 12 can be inserted into the holding hole portion 71 with the long side portion 12b of the rope holder 12 being parallel to the longitudinal direction of the holding hole portion 71.
The other structures are the same as those of the compensating rope supporting mechanism 10 of the first embodiment, and therefore, their description is omitted. The compensating rope support mechanism 60 of the fourth embodiment also provides the same operational advantages as the compensating rope support mechanism 10 of the first embodiment described above.
According to the compensating rope support mechanism 60 of the fourth embodiment, the strength of the attachment plate 63 can be further increased by providing the partition walls 73 that partition the plurality of holding hole portions 71.
The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention described in the claims. In the above-described embodiment, the example in which the hoist 100 is disposed in the machine room 160 provided at the top of the hoistway 110 has been described, but the present invention is not limited thereto. As the elevator, for example, a so-called machine room-less elevator having no machine room in the hoistway can be applied.
In the above-described embodiment, the one end portion 131a on the car 120 side as the compensating rope 131 is supported and fixed by the compensating rope supporting mechanism. The other end 131b on the counterweight 140 side, which is the compensating rope 131, is supported and fixed by the adjusting mechanism 190.
However, the end portion at which the compensating rope support mechanism is disposed is not limited to the one end portion 131a on the car 120 side. For example, the adjustment mechanism 190 may support one end 131a of the compensating rope 131, and the compensating rope supporting mechanism may support the other end 131b of the compensating rope 131. Alternatively, when a mechanism for adjusting the tension is provided on the compensating pulley 132 or the like, both ends of the compensating rope 131 on the car 120 side and the counterweight 140 side may be supported by the compensating rope supporting mechanism.
The adjustment mechanism 190 requires a spring member or the like for adjusting the tension of the compensation rope 131, and therefore has a longer length in the vertical direction than the compensation rope support mechanism. The other end 131b of the compensating rope 131 is connected to the side surface of the counterweight 140. Therefore, the adjustment mechanism 190 is preferably provided at the other end 131b of the compensation rope 131 having a space in the vertical direction.
On the other hand, one end 131a of the compensating rope 131 is connected to the lower part of the car 120. The car 120 moves to the vicinity of the groove of the hoistway 110, i.e., downward in the vertical direction. Further, when the length of the lower portion of the car 120 becomes long, the vertical length of the groove of the hoistway 110 needs to be increased.
Therefore, the compensation rope support mechanism described above, which can achieve space saving in the vertical direction as compared with the adjustment mechanism 190, is preferably provided at the one end portion 131a on the car 120 side, and thus the length of the groove of the hoistway 110 in the vertical direction can be prevented from being increased by the compensation rope support mechanism.
In the present specification, terms such as "parallel" and "orthogonal" are used, but these terms do not mean "parallel" and "orthogonal" in a strict sense, and include "parallel" and "orthogonal" as well as "substantially parallel" and "substantially orthogonal" within a range in which the functions thereof can be exhibited.
Claims (8)
1. An elevator, wherein the elevator is provided with a cage,
the elevator is provided with:
a car that moves up and down in an up-and-down passage provided in a building structure;
a counterweight connected to the car via a main rope;
a compensating rope having one end connected to the car and the other end opposite to the one end connected to the counterweight; and
a compensation rope support mechanism that connects the one end portion of the compensation rope to the car or connects the other end portion to the counterweight,
the compensating rope support mechanism includes:
a rope holder into which the one end portion or the other end portion of the compensating rope is inserted and which holds the one end portion or the other end portion; and
a mounting plate provided to the car or the counterweight,
a holding hole portion into which the rope holder is inserted and which holds the rope holder is formed in the attachment plate,
the opening length of the part of the holding hole part with the longest opening interval is set to be longer than the length of the long side of the rope seat with the longest length on the horizontal projection plane,
the opening length of the portion of the holding hole portion where the interval between the openings is shortest is set to be longer than the short side length of the rope holder where the length is shortest on the horizontal projection plane and shorter than the long side length of the rope holder.
2. The elevator according to claim 1,
the holding hole portion is formed with:
an insertion portion through which at least a part of the rope holder can pass in the vertical direction; and
and an engagement hole that engages with the rope holder.
3. The elevator according to claim 2,
the end of the rope holder fitted in the fitting hole is formed in a shape having a portion with a different length from a central axis through which the compensation rope passes to an outer periphery.
4. The elevator according to claim 2 or 3, wherein,
the rope holder is provided with a fitting projection that is fitted into the fitting hole.
5. The elevator according to claim 1,
the mounting plate is formed in a flat plate shape,
the holding hole portion is an elongated hole continuously opened from one end portion to the other end portion in the longitudinal direction of the mounting plate,
the plurality of rope holders are inserted into the holding hole.
6. The elevator according to claim 1,
a plurality of the compensating ropes held by the rope sockets are installed at the mounting plate,
a plurality of the holding hole portions are formed in the attachment plate,
the plurality of holding hole portions are partitioned by partition walls.
7. The elevator according to claim 1,
the mounting plate is formed in a flat plate shape,
the holding hole portion is an elongated hole continuously opened from one end portion to the other end portion in the longitudinal direction of the mounting plate,
the holding hole portion is formed with: an insertion portion through which at least a part of the rope holder can pass in the vertical direction; a plurality of fitting holes that are fitted to the rope holder; and a partition protrusion for partitioning the fitting holes so that the rope holder is inserted into the holding hole,
the compensation rope support mechanism has a wedge member around which the one end portion or the other end portion of the compensation rope is wound,
the rope holder is formed in a quadrangular prism shape,
the rope holder is provided with an insertion hole into which the one end portion or the other end portion of the compensation rope wound around the wedge member is inserted, and a rectangular fitting projection fitted into the fitting hole.
8. A compensating rope support mechanism for connecting one end or the other end of a compensating rope provided to an elevator to a car or a counterweight,
the compensating rope support mechanism includes:
a rope holder into which the one end portion or the other end portion of the compensating rope is inserted and which holds the one end portion or the other end portion; and
a mounting plate provided to the car or the counterweight,
a holding hole portion into which the rope holder is inserted and which holds the rope holder is formed in the attachment plate,
the opening length of the part of the holding hole part with the longest opening interval is set to be longer than the length of the long side of the rope seat with the longest length on the horizontal projection plane,
the opening length of the portion of the holding hole portion where the interval between the openings is shortest is set to be longer than the short side length of the rope holder where the length is shortest on the horizontal projection plane and shorter than the long side length of the rope holder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019079100A JP7105723B2 (en) | 2019-04-18 | 2019-04-18 | Elevator and Compen rope support mechanism |
| JP2019-079100 | 2019-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111824899A CN111824899A (en) | 2020-10-27 |
| CN111824899B true CN111824899B (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010282828.6A Active CN111824899B (en) | 2019-04-18 | 2020-04-08 | Elevator and compensating rope support mechanism |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7105723B2 (en) |
| CN (1) | CN111824899B (en) |
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| JP2003128361A (en) * | 2001-10-29 | 2003-05-08 | Hitachi Building Systems Co Ltd | Mounting structure and mounting method of elevator compensating rope |
| CN202380995U (en) * | 2011-10-08 | 2012-08-15 | 李松松 | Split type lifting hook |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2020175988A (en) | 2020-10-29 |
| JP7105723B2 (en) | 2022-07-25 |
| CN111824899A (en) | 2020-10-27 |
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