JP2018158831A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control structure that is easily attached and replaced and is suitable for miniaturization.SOLUTION: In an elevator vibration control structure 20 installed between a hoisting machine 17 and a machine room floor surface 16a, the vibration control structure 20 includes an elastic body 23, a fixing member 21, and a spacer member 22. The elastic body 23 is composed of a plurality of elastic bodies receiving a load applied in a vertical direction. The fixing member 21 has a groove part 21a for fixing the elastic body 23. The vibration control structure 20 exhibits a vibration control effect by being fixed to the fixing member 21 through the spacer member 22 in combination with the number of elastic bodies 23 to be used and their arrangement.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an elevator.

  In recent years, there has been an increasing demand for improving the vibration-proofing structure and maintainability of elevator hoisting machines. In order to meet such a demand, for example, a vibration-proof structure described in Patent Document 1 below has been proposed.

  In Patent Document 1, in a vibration isolator structure for an elevator hoist, a vibration isolator including a plurality of elastic bodies having different spring constants in the vertical direction, and a contact member that contacts only a part of the elastic bodies. The structure which has these is disclosed.

JP 2012-197149 A

  In the prior art disclosed in Patent Document 1 described above, the spring constant of the vibration-proof structure can be changed by changing an elastic body having a different spring constant in contact with the contact member. Therefore, even in elevators having different specifications such as the lifting stroke and the car weight, it is possible to exhibit a more appropriate vibration-proofing effect for the hoisting machine only by changing the position of the contact member.

  However, when the load applied to the vibration isolation structure varies due to a change in the number of passengers in the elevator, the vibration isolation effect to be obtained also varies. Therefore, the vibration isolation structure needs to be designed according to the worst condition. In the conventional technique of Patent Document 1, since the spring constant of the vibration isolation structure cannot be changed according to the fluctuation, it is difficult to always obtain the optimal vibration isolation effect according to the change in the number of passengers in the elevator. There is.

  The present invention has been made based on the actual situation of the prior art, and its purpose is to change the spring constant of the vibration isolation structure when the load applied to the vibration isolation structure fluctuates due to a change in the number of passengers in the elevator. An object of the present invention is to provide an elevator having a vibration-proof structure.

  In order to achieve the above object, an elevator according to the present invention includes a car and a counterweight, a main rope for suspending the car and the counterweight in a hoistway, and the main rope installed in a machine room of the building. A hoisting machine, a machine beam on which the hoisting machine is mounted, and a vibration isolating structure installed between a leg of the machine beam and a floor of a machine room on which the machine beam is mounted In the elevator provided with a body, the vibration-proof structure includes a plurality of elastic bodies and a support member, and the support members are arranged above and below the elastic body and come into contact with the elastic body A first spacer member and a second spacer member having different contact surface depths, wherein the depth of the contact surface of the second spacer member is deeper than the contact surface of the first spacer member; The first spacer members Thus it has a first elastic portion and below the elastic body is sandwiched, a configuration and a second elastic portion vertically sandwiched in the elastic body by the second spacer member and the first spacer member.

  According to the elevator of the present invention, it is possible to provide an elevator in which the spring constant of the vibration isolation structure varies when the load applied to the vibration isolation structure varies due to a change in the number of passengers in the elevator. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

1 is an overall view illustrating a configuration of an elevator according to an embodiment. It is a figure which shows an example of the anti-vibration structure of the winding machine shown in FIG. It is a figure which shows the fixing member of the vibration proof structure used for the vibration proof structure shown in FIG. It is a figure which shows the spacer member of the vibration proof structure used for the vibration proof structure shown in FIG. It is an enlarged view of the vibration isolator structure which concerns on this embodiment, Comprising: It is the figure which showed the case where there are few passengers in a cage | basket | car. It is an enlarged view of the vibration isolator structure which concerns on this embodiment, Comprising: It is the figure which showed the case where there are many passengers in a cage | basket | car.

  Hereinafter, examples will be described with reference to the drawings.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall view showing a configuration of an elevator according to the present embodiment.

  As shown in FIG. 1, an elevator 101 according to the present embodiment includes a hoistway 12 formed in a building structure that constitutes a building 11, a passenger car 13 that moves up and down in the hoistway 12, and one end of the elevator 101. A main rope 14 attached to the car 13 and a counterweight 15 attached to the other end of the main rope 14 and suspended in the hoistway 12 are provided.

  The elevator 101 is provided in a machine room 16 located above the hoistway 12, and a hoisting machine 17 serving as a driving source for driving the car 13 and the counterweight 15 by winding the main rope 14, A deflecting wheel 18 disposed in the vicinity of the hoisting machine 17, a control panel (not shown) as a control device that is installed in the machine room 16 and controls the car 13, and the hoisting machine 17 are placed. Machine beam 24.

  The hoisting machine 17 includes a sheave (not shown) around which the main rope 14 is wound, and an output shaft (not shown) coaxial with a rotating shaft (not shown) of the sheave. And a motor (not shown) for rotating the sheave via the wheel. The motor is electrically connected to the control panel.

  In the hoisting machine 17 having such a configuration, the car operates in accordance with a control signal from the control panel, so that the car 13 moves up and down relative to the counterweight 15 in the hoistway 12 of the building 11. The car 13 stops at the landing 19 on each floor of the building 11.

  An example of the vibration isolating structure of the hoisting machine 17 in this embodiment is shown in FIG. The anti-vibration structure of the hoisting machine 17 includes an anti-vibration structure 20 that is installed between the floor 16 a of the machine room 16 and the legs 25 of the machine beam 24.

  Next, the anti-vibration structure that characterizes the present embodiment will be described in detail with reference to FIGS.

  The vibration isolation structure 20 has a plurality of elastic bodies 23 (see FIG. 5). Further, the pair of fixing members 21 that are arranged opposite to each other and have a groove portion 21a for determining the position of the elastic body 23, and the elastic body 23 are fitted in the groove portion 21a for installing the elastic body 23 in the groove portion 21a of the fixing member 21. It consists of a spacer member 22 to be mated.

  Next, the combination of the plurality of elastic bodies 23 and the spacer member 22 and the arrangement on the fixing member 21 in the present embodiment will be described.

  FIG. 5 is an enlarged view of the vibration isolating structure according to the present embodiment, and shows a case where there are few passengers in the car.

  First, in the vibration isolating structure 20 according to the present embodiment, as shown in FIG. 4, the spacer member 22 includes two types of spacer members 22 a and 22 b having different depths of the surface that contacts the elastic body 23. The second spacer member 22b has a deeper contact surface 26 that contacts the elastic body 23 than the first spacer member 22a.

  Therefore, as shown in FIG. 5, the first spacer member 22 a is installed on the lower fixing member 21, and is opposed to the first spacer member 22 a installed on the lower fixing member in the upper fixing member 21. In the case of the configuration of the second elastic portion 28 configured by installing the second spacer member 22b at the position, the first spacer is positioned at a position facing the first spacer member 22a installed on the lower fixing member. Compared to the configuration of the first elastic portion 27 configured by installing the member 22a, the distance between the contact surfaces 26 with which the elastic body 23 contacts the spacer member 22 installed above and below becomes longer.

  Here, in the car-side vibration-proof structure 20a, a first elastic portion 27 for installing the first spacer member 22a is provided on the inner side (side closer to the hoisting machine), and the outer side (from the hoisting machine) In the case where the second elastic portion 28 for installing the first spacer member 22a on the lower side and the second spacer 22b on the upper side is provided on the far side), there is no passenger in the car 13, or the load Fc is predetermined. When the value is smaller than this value, a gap L is generated between the contact surface 26 of the second spacer member 22 b and the elastic body 23 in the second elastic portion 28, whereby the elasticity in the first elastic portion 27 is generated. Only the body 23 is compressed.

  On the other hand, as shown in FIG. 6, when there are many passengers in the car and the load Fc ′ is larger than a predetermined value, the car side of the hoisting machine 17 sinks, so that the first vibration-proof structure 20 a on the car side In the second elastic portion 28, the contact surface 26 of the second spacer member 22 b comes into contact with the elastic body 23, so that the elastic body 23 in the second elastic portion 28 also receives a load. That is, the spring constant of the vibration isolating structure 20a is increased, and the change in the deflection amount of the vibration isolating structure 20a is moderated.

  As described above, in the case of the conventional structure in which one type of elastic body 23 is applied to the hoisting machine 17, the load applied to the hoisting machine varies depending on the number of passengers in the car and the position of the car. If the spring coefficient is small, when the load Fc increases to Fc ′, the elastic body 23 is fully contracted and the elastic body 23 cannot exhibit a sufficient vibration-proofing effect. If the elastic body 23 has a large spring coefficient in view of the increase in the load Fc ′, the amount of flexure of the elastic body 23 is small when the load Fc is small, so that a sufficient anti-vibration effect cannot be exhibited.

  On the other hand, by applying the vibration isolating structure according to the present embodiment, the change in the amount of deflection of the elastic body 23 due to the change in the load Fc can be adjusted, so that a more optimal vibration isolating effect can be obtained.

  Further, in the vibration isolating structure 20a, the inner side (the side closer to the hoisting machine) is provided with a first elastic portion 27 for installing the first spacer member 22a on the upper and lower sides, and the outer side (the side away from the hoisting machine) is the lower side. The first elastic member 28 is provided with the first spacer member 22a on the side and the second spacer 22b on the upper side.

  With such a configuration, since the amount of subsidence of the support member is larger on the outer side than on the inner side, the amount of bending after the second spacer 22b contacts the elastic body 23 on the outer side is the inner elasticity. Since it is larger than the body 23, the outer elastic body 23 can be bent to an amount that can exhibit a sufficient anti-vibration effect when the sinking amount is small.

  The vibration isolator structure 20a installed on the car side of the hoisting machine 17 uses two types of spacer members 22a and 22b, and the anti-vibration structure body 20b on the counterweight side is a conventional anti-vibration structure structure or One type of spacer member is used. This is because the load fluctuation is larger on the car side due to getting on and off by the elevator user than on the counterweight side.

  On the other hand, since some load fluctuations occur on the counterweight side depending on the position of the counterweight, the anti-vibration structure 20b on the counterweight side may be configured to use two types of spacer members 22a and 22b.

  In the case of an elevator that is connected to the lower part of the car 13 and the lower part of the counterweight 15 and has a compen- sion rope that compensates for the weight of the main rope 14, there is almost no load fluctuation depending on the position of the counterweight 15, The anti-vibration structure 20b on the counterweight side is preferably a conventional anti-vibration structure or a single type of spacer member.

  Moreover, the vibration isolating structure 20 according to the present embodiment arranges the elastic bodies 23 in a plurality of stages, or makes the combination of the elastic bodies 23 and the support members different for each installation location on the hoisting machine 17. It is also possible. As a result, it is possible to obtain a further optimal vibration isolation effect in accordance with the distribution of the load applied to the hoisting machine.

  In addition, with such a structure, it is easy to make component parts common and unitized, and it is possible to improve the management and replacement workability of replacement parts.

  In addition, this embodiment mentioned above was described in detail in order to demonstrate this invention easily, and is not necessarily limited to what is provided with all the demonstrated structures. Further, a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

  In particular, the elevator roping according to the present embodiment has been described with respect to the case where the elevator is configured to have a ratio of 1: 1. However, the present invention is not limited to this case, and may be configured with other ratios such as 2: 1. May be.

  Furthermore, although the present embodiment has been described by taking as an example one elevator 101 in which one car 13 is installed in the hoistway 12 of the building 11, the present invention is not limited to this case. In addition, the present invention can be applied to a plurality of elevators in which two or more cars 13 are installed, and the elevator and the vibration isolation structure of the present invention are not limited to the above-described embodiments.

  DESCRIPTION OF SYMBOLS 11 ... Building, 12 ... Hoistway, 13 ... Riding car, 17 ... Hoisting machine, 19 ... Landing place, 101 ... Elevator, 20 ... Anti-vibration structure, 21 ... Fixing member, 22 ... Spacer member, 23 ... Elastic body

Claims (6)

With a basket and counterweight,
A main rope for suspending the car and the counterweight in the hoistway of the building;
A hoist installed in the machine room of the building and winding up the main rope;
A machine beam on which the hoisting machine is mounted;
In an elevator comprising a vibration isolation structure installed between a leg portion of the machine beam and a floor surface of a machine room on which the machine beam is placed,
The vibration-proof structure is
A plurality of elastic bodies;
A first spacer member and a second spacer member, which are arranged above and below the elastic body and have different contact surface depths in contact with the elastic body;
The depth of the contact surface of the second spacer member is deeper than the contact surface of the first spacer member,
A first elastic part in which the upper and lower sides of the elastic body are sandwiched between the first spacer members, and a second elastic part in which the upper and lower sides of the elastic body are sandwiched between the first spacer member and the second spacer member And an elevator.   The elevator according to claim 1, wherein the second elastic portion is provided on a side farther from the hoisting machine than the first elastic portion.   The said vibration-proof structure is installed between the leg part of the said machine beam of the said cage | basket | car side, and the floor surface of the machine room in which the said machine beam is mounted. Elevator.   The vibration-proof structure installed between the leg portion of the machine beam on the counterweight side and the floor surface of the machine room on which the machine beam is placed has only the first elastic portion. The elevator according to claim 3. The vibration-proof structure is
It has a pair of fixing members that are arranged to face each other vertically and have a groove on the opposing surface,
The elevator according to claim 1, wherein the first spacer member and the second spacer member are fitted in the groove portion.   The elevator according to claim 4, further comprising a compensation rope connected to a lower portion of the car and a lower portion of the counterweight.

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