JP5102441B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus. In particular, it relates to a hoisting machine for an elevator apparatus.

  Conventionally, there has been an elevator hoist as shown in FIG. Regarding the basic structure of the elevator, since the present invention is also conventional, first, the basic structure of the elevator will be described with reference to FIG. When the hoist drive sheave rotates in the direction of arrow M, the rope rises and reaches the return wheel 44. The direction of the rope reverses in the return wheel 44 and moves downward to reach the counterweight 35. At the counter wheel, the direction of the rope is reversed and directed upward, and one end 45 of the rope is fixed to the upper bar. The other end 46 of the rope is fixed to the upper bar, reaches the return wheels 40 and 41 at the bottom of the car 32, changes direction, and moves upward. The rope changes direction at the return wheel 42 and goes downward to the hoisting machine. The car rails guide the raising and lowering of the car, and the counter rails guide the raising and lowering of the counterweight. When the car 32 is raised, the counterweight 36 whose weight is adjusted to correspond to the car 32 is lowered on the counterrail 34, so that only a small amount of energy is required for raising the car. That is, the cage moves up or down as the rope moves upward or downward by the rotation of the driving sheave.

And the attachment of the conventional winding machine was as showing in FIG. In other words, the machine room 39 for the hoisting machine is provided below the car floor 4 when the lowest floor is stopped, and the hoisting machine 1 is placed on the floor of the machine room. It was. And since it is necessary to prevent the propagation of noise and vibration generated from the hoisting machine, the hoisting machine is not placed directly on the floor, but is provided with a vibration isolator (56, 57) made of anti-vibration rubber. It was placed through a vibration isolator (FIG. 9).

  When the means shown in FIG. 7 is used, there is no degree of freedom of the vibration isolator. In other words, the degree of propagation of noise and vibration varies depending on the position of the machine room in the building. For example, when there is a room near the machine room, a higher level of vibration isolation effect is required. There are various anti-vibration effects, but in the case of using the means shown in FIG. 7, there is no room in the space where the anti-vibration body is provided. When it was not possible, and there was a flooding accident in the building, the hoisting machine and motor were disturbed, causing problems.

  As a means for solving the problems caused by the means shown in FIG. 7, there is one shown in Japanese Patent No. 3509727 (FIG. 8). In the case of the means shown in FIG. 8, the sheave 50 of the hoisting machine is positioned between the hoistway wall surface and the car wall surface and above the car floor surface when the lowest floor is stopped on the horizontal projection plane. Has been. By doing in this way, even if there is a flooding accident in the building, there is a low possibility that the hoisting machine and the motor will be disturbed. In the case of the means shown in FIG. 8, the sheave 50 of the hoisting machine further connects the fixed body 53 attached to the rail mounting base (shocker base) 3 of the hoistway floor 2 with the frame body 54. A square-shaped frame body 52 is attached to an upper portion of 53, and a sheave 50 is attached to the frame body 52. Here, a vibration isolator 51 is interposed between the frame body 52 and the sheave 50. The mounting bracket 54 is directly screwed to the hoistway wall. In the case of the means shown in FIG. 8, since the vibration isolator is interposed between the hoist and the frame, there is a limitation on the form of the vibration isolator, and it is sufficient to meet various demands for the vibration isolating effect. I could n’t.

  Further, in the conventional elevator apparatus shown in FIG. 7, as shown in an enlarged view in FIG. 10, the vibration isolator is attached to the lower part of the motor, and the sheave is attached to one side of the motor. The vibration generated by the elevator moving up and down is first transmitted to the sheave via a rope that engages with the car, and the hoistway that is generated from the motor body to which the sheave is attached passes through the gantry. The vibration isolators 56 and 57 exist between the motor and the hoistway floor to disperse vibrations and the like. At this time, since the centers of gravity of the two vibration isolators do not exist on the same line as the arrow F1 (the direction in which the rope suspension core exists), the load applied to the vibration isolator 47 is larger than the load applied to the rope due to the lever principle. To do. Therefore, the vibration isolator needs to be strong enough to withstand the increased load, and the support member also needs to be strong enough to withstand the load. The same applies to the case where the thin motor 61 is attached to the back side of the sheave 62 as shown in FIG. 12 and the vibration isolator 60 does not exist directly below the sheave 62.

  In addition, when the center of gravity of the vibration isolator does not exist on the same line as the arrow F1 (the direction in which the rope suspension core exists), when a load is applied to the rope due to a heavy load of people or luggage on the elevator, The sheave part of the upper machine is lifted, and the sheaves (59, 62) are tilted in the direction of the arrow F3 together with the motors (58, 61) as shown in FIGS. If it does so, an angle difference will arise in the direction (arrow F2 of Drawing 11 and Drawing 13) where a rope is pulled, and sheaves (59, 62). A biased force is applied to the vibration isolator (56, 57, 60). In addition, the ropes and sheaves are worn and the life of the device is shortened.

Japanese Patent No. 3509727 Japanese Patent No. 3585906

  The hoisting machine is positioned so that the driving sheave of the hoisting machine is positioned between the hoistway wall surface and the car wall surface on the horizontal projection plane and above the car floor surface when the lowest floor is stopped. It is an object of the present invention to obtain a device that can meet various demands for vibration isolation effects.

  A hoisting machine having a sheave on which an elevator rope is wound, a motor for generating driving force of the sheave, and a mounting body, a vibration isolator for suppressing vibration and noise, and a hoisting machine An elevator device comprising a gantry, wherein the sheave is above the car floor when the lowest floor is stopped in the hoistway, and the vibration isolator is between the hoistway floor and the gantry. The problem is solved by an elevator apparatus characterized in that the apparatus is provided. By providing an anti-vibration body between the floor of the hoistway and the gantry, there is room in the position where the anti-vibration body is provided. It can meet various demands for effects. Also, a plurality of vibration isolators can be stacked. And the gravity center of a vibration isolator can also be provided in the position which comes on the substantially same line of the direction where a rope is suspended.

  The problem is solved by an elevator apparatus characterized in that a hoisting machine exists above the floor of the car when the lowest floor is stopped in the hoistway. It is not only the sheave that is above the car floor at the time of the lowest floor stop in the hoistway, but the whole hoisting machine including the motor and the brake is above the car floor. Thereby, the failure which may occur at the time of flooding can be prevented more completely.

  The problem is solved by an elevator apparatus characterized in that a mounting base is further provided between the floor surface of the hoistway and the vibration isolator. By providing the mounting body, a further degree of freedom of the vibration proofing effect, such as adjusting the height of the mounting body, can be obtained.

  The problem is solved by an elevator apparatus characterized in that the rotation plane of the sheave and the center of gravity of the vibration isolator are on the same plane. Since there is a degree of freedom in the position of the vibration isolator, the center of gravity of the vibration isolator and the rotation plane of the sheave can be placed on the same plane. This is very significant in terms of the stability of the hoisting machine, the vibration proofing effect, and the sheave and rope wear prevention. The elevator apparatus characterized in that the rotation plane of the sheave and the center of gravity of the vibration isolator are on the same plane, the sheave above the car floor when the lowest floor is stopped in the hoistway. And the vibration isolator is provided between the floor surface of the hoistway and the mount, even if it is not an elevator apparatus (that is, the elevator apparatus according to claim 1). Can be solved. That is, even if the hoisting machine or the like is below the floor surface, the rotation plane of the sheave and the center of gravity of the vibration isolator can be on the same plane. Stabilization of the upper machine, advanced vibration-proofing effect, and prevention of sheave and rope wear.

  The problem is solved by an elevator apparatus characterized in that the return wheel exists on the same plane as the rotation plane of the sheave. The state in which the return wheel exists on the same plane as the sheave's rotation plane may occur even if the sheave's rotation plane and the return wheel's rotation plane do not exist on the same plane. That is, it is sufficient that any one of the return wheels overlaps the same plane as the sheave's rotation plane. When there is no return wheel on the same plane as the sheave's rotation plane, the force applied to the rope is always non-uniform, so the fatigue of the rope could not be avoided, but these are located on the same plane. By doing so, the force applied to the rope becomes uniform, and the fatigue of the rope can be reduced.

  The problem is solved by an elevator apparatus characterized in that the rotation plane of the sheave is inclined with respect to the vertical axis. Since there is a degree of freedom in the position of the vibration isolator, the “same plane” can be obtained by a plane inclined with respect to the vertical axis. In such a case, the degree of freedom of arrangement of the return wheel is dramatically increased. An elevator apparatus characterized in that the rotation plane of the sheave is inclined with respect to the vertical axis can be obtained even when the hoisting machine or the like is located below the floor of the car. As a result, it is possible to obtain the stability of the hoisting machine, the high vibration-proofing effect, and the sheave and rope wear prevention.

  Since the space between the rack and the rail mount of the hoisting machine has room, a vibration isolator according to the apparatus can be used. In other words, the material, stiffness, size, and shape of the vibration isolator can be freely set, and various requests for the vibration isolator can be met. It is also possible to use a plurality of vibration isolators such as a double vibration isolation structure. The use of a plurality of anti-vibration structures has an advantage that the anti-vibration effect is high.

  Since the space between the rack and the rail mount of the hoisting machine has room, the degree of freedom of the position of the vibration isolator mounting core is increased. By increasing the degree of freedom of the position of the vibration isolator mounting core, it is possible to provide the vibration isolator mounting core substantially on the same line as the rope suspension core. By arranging the rope suspension core and the vibration isolator mounting core on substantially the same line in the vertical direction, it is possible to prevent the apparatus from falling due to increase or decrease of the load.

  Furthermore, by changing the installation position of the upper steady rest, the entire apparatus can be tilted in the rope suspending direction. This increases the degree of freedom in the layout with the upper return wheel.

  FIG. 1 shows an apparatus according to the first embodiment. A sheave is attached to the hoist 1. The hoisting machine 1 is attached to the upper mounting body 5 via the upper steady rest 18 at the upper side. The upper attachment body 5 has one end attached to the car rail 33 and the other end attached to the hoistway wall or the counter rail. The steady rest functions as a stop for the top of the fuselage, and its structure is as follows. In the lower part of the upper mounting body 5, two holes for receiving the upper steady rest 18 are provided corresponding to the positions of the steady rest. This hole is one size larger than the steady rest, and even if the hoisting machine 1 is swung several millimeters due to vibration, the shake is received by the inner periphery of the hole and is not swung further. ing. A gantry lower attachment body 11 is provided below the sheave attachment body 15, a gantry leg 10 is provided further below, and a vibration isolator receiver 7 is provided at the lower end. The rail mount 3 is provided with a lower mounting body 6, a vibration isolator 8 is provided downward from the lower mounting body 6, and a vibration isolator receiver 7 is provided below the vibration isolating body 8. is there. An anti-vibration body 8 is attached at a position where the anti-vibration body provided downward from the lower attachment body 6 is received from below.

  FIG. 2 shows a driving apparatus according to the second embodiment. In Example 2, the vibration-proof structure is doubled. That is, the same vibration isolator structure as that of the first embodiment is provided downward (lower mounting body 20, anti-vibration body receiver 21, anti-vibration body 22, and base base 23).

  FIG. 3 shows an apparatus according to the third embodiment. The rotating surface of the sheave 15 matches the vibration isolator mounting core and the rope suspension core. And in Example 1 and Example 2, the sheave 15 exists in the position shown to a. On the other hand, in Example 3, the sheave is at the position indicated by b or c. The sheave can be tilted in this way because the driving sheave rotation surface coincides with the vibration isolator mounting core. By tilting the sheave, various patterns are possible for the arrangement of the return wheel. They are shown in FIGS.

  In FIG. 4, a hoisting machine and a counterweight are provided on the back of the car in the hoistway. In FIG. 5, a hoisting machine is provided on the side of the car in the hoistway, and the counterweight is provided on the back of the car. In FIG. 6, the hoisting machine and the counterweight are provided on the side surface of the car in the hoistway. 4 to 6, the return wheel 42 is a rope return wheel that reaches the car, the return wheel 43 is a rope return wheel that reaches the driving sheave, and the return wheel 44 is a rope return wheel that reaches the counterweight. It is a return car.

  Available for elevators. In particular, it can be used for elevator hoisting machines.

1 shows a hoist according to Example 1 of the present application; 1 shows a hoist according to Embodiment 2 of the present application. Fig. 3 shows a hoist according to Example 3 of the present application. The arrangement of the hoist according to the present application and the return wheel is shown. The arrangement of the hoist according to the present application and the return wheel is shown. The arrangement of the hoist according to the present application and the return wheel is shown. A hoisting machine according to a conventional example is shown. A hoisting machine according to a conventional example is shown. A hoisting machine according to a conventional example is shown. A hoisting machine according to a conventional example is shown. A hoisting machine according to a conventional example is shown. A hoisting machine according to a conventional example is shown. A hoisting machine according to a conventional example is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoisting machine 2 Hoistway floor surface 3 Rail mounting base 4 Car floor surface at the time of the lowest floor stop Upper mounting body 6 Lower mounting body 7 Anti-vibration body receiver 8 Anti-vibration body 9 Mounting base 10 Mounting base leg 11 Upper mounting base 15 Sheave 16 Rope 18 Upper steady rest 20 Lower attachment body 21 Anti-vibration body receiver 22 Anti-vibration body 23 Base base 29 Hoistway 30 Hoistway wall 31 Entrance 32 Car 33 Car rail 34 Counter rail 35 Counter car 36 Counter weight 40 Return Car 41 Return wheel 42 Return wheel 43 Return wheel 44 Return wheel 45 One end of the rope 46 The other end 50 of the rope Sheave 51 Vibration isolator 52 Frame body 53 Fixing body 54 Mounting bracket 56 Vibration isolator 57 Car 60 Anti-vibration body 61 Motor 62 Sheave

Claims (3)

A hoisting machine having a sheave around which the rope of the elevator is wound, a motor that generates the driving force of the sheave, and a mounting body; a vibration isolator that suppresses propagation of vibration and noise;
An elevator device comprising a gantry for raising the hoisting machine,
The sheave above the car floor when the lowest floor stops in the hoistway,
The vibration isolator is provided between the floor of the hoistway and the mount;
A rotation plane of the sheave and the center of gravity of the isolator is exist on the same plane,
The rotation plane of the sheave is inclined with respect to the vertical axis;
An elevator apparatus characterized in that a return wheel exists on the same plane as a rotation plane of the sheave . 2. The elevator apparatus according to claim 1, wherein the hoisting machine is present above a car floor surface when the lowermost floor is stopped in the hoistway. The elevator apparatus according to claim 1, further comprising a mounting base between a floor surface of the hoistway and the vibration isolator.

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