JP4974374B2 - Installation method of elevator suspension rod vibration isolator - Google Patents

Description

  The present invention relates to an elevator apparatus for supporting a rope connected to a passenger car and a counterweight by means of a support beam installed on the upper part of a hoistway via a suspension pulley and a suspension rod, and vibration transmitted from the suspension rod to the support beam. The present invention relates to a method for mounting an elevator hanging rod vibration isolator that reduces noise.

Many elevator apparatuses are provided with a support beam on the upper end side of a car guide rail for guiding the lifting and lowering movement of the car and a counterweight guide rail for guiding the lifting and lowering movement of the counterweight. The rope connected to the weight is supported via a suspension pulley and a suspension rod. For this reason, the vibration accompanying the raising / lowering operation of the passenger car and the counterweight is transmitted from the suspension rod to the support beam. This vibration is transmitted from the support beam to the building via the guide rail and from the guide rail to the building, and particularly when a living room or the like is adjacent to the hoistway, it causes noise damage. Therefore, it is desirable to reduce vibration transmitted from the suspension rod to the support beam as much as possible. Therefore, conventionally, an elastic body is arranged at the connecting part between the support beam supporting the suspension pulley and the suspension rod for hanging the suspension pulley to reduce the transmission of vibration to the support beam and the building. (For example, see Patent Documents 1 and 2).
Japanese Patent No. 3398733 JP 2006-182491 A

  Vibration can be reduced by the above-described conventional method. However, in some rare cases, vibration from the suspension rod is transmitted to the support beam and then to the building due to the structure of the building, and further vibration reduction may be desired. . However, in the conventional elevator apparatus, if the elastic body arranged at the connecting portion between the support beam and the suspension rod is to be changed to one having better vibration absorption in order to reduce vibrations, After releasing the load applied to the rod, it is necessary to remove a nut or the like for fixing the suspension rod to the support beam, and there is a problem that much work and time are required for the work.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator hanging rod vibration isolator mounting method that can easily reduce vibration transmission.

  In order to achieve the above object, an invention according to claim 1 of the present invention is characterized in that a car and a counterweight that elevate and lower the hoistway, and the hoistway so as to extend vertically, A car guide rail that guides up and down movement, a counterweight guide rail that stands up and down on the hoistway so as to extend up and down, and is installed on the upper part of the hoistway. A support beam, a rope for suspending the car and the counterweight, a suspension pulley on which the rope is slidably wound, a suspension rod for suspending the suspension pulley and being inserted into the support beam, and the suspension rod A nut that is screwed to the upper portion of the support beam, a first plate that is inserted through the suspension rod and arranged to contact the upper surface of the support beam; An elastic body that is inserted through the suspension rod and disposed so as to be in contact with the upper surface of the first plate; and a second plate that is disposed between the elastic body and the nut and is disposed through the suspension rod. An elevator apparatus having a lock nut screwed to the suspension rod and disposed so as to contact the upper surface of the nut, wherein the vibration is transmitted from the suspension rod to the support beam. In the method of attaching the device, after the lock nut is removed from the suspension rod, a spacer having a hole having a dimension larger than the outer dimension of the nut is formed on the lower surface of the lock nut from the upper end of the suspension rod. Then, the additional elastic body is disposed so as to contact the upper surface of the spacer, and then the additional plate is placed on the additional elastic body. Next, the additional nut is screwed onto the suspension rod, and the additional nut is screwed until the respective deflection amounts of the elastic body and the additional elastic body reach a specified value. It is characterized by letting.

  In the invention according to claim 1 of the present invention, after removing the lock nut from the suspension rod, the spacer is inserted from the upper end of the suspension rod, and the existing nut is stored in the hole formed in the lower surface of the spacer. In this state, the additional elastic body and then the additional plate are inserted into the suspension rod, the additional nut is screwed, and the deflection amount of the existing elastic body and the additional elastic body is determined by the specified value. Rotate until As a result, the existing nut and the first plate are separated from each other, and the load is received by the additional nut, and the vibration is absorbed by each of the existing elastic body and the additional elastic body. As described above, the additional elastic body can be attached without removing the existing nut, that is, while the load is applied to the suspension rod, and thus vibration transmission can be easily reduced.

  The invention according to claim 2 of the present invention is characterized in that a plurality of the additional elastic bodies are arranged in a stacked manner.

  In the invention according to claim 2 of the present invention, the vibration transmission can be further reduced by arranging a plurality of the additional elastic bodies.

  According to the present invention, with a simple structure of attaching an additional elastic body, vibration can be prevented from being transmitted to the building, and the comfort can be improved. Since it can be attached without removing the load, that is, while the load is applied to the suspension rod, the labor and time required for the work can be greatly reduced.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment according to a method for attaching an elevator hanging rod vibration isolator of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of an elevator suspension rod vibration isolator mounting method according to the present invention, FIG. 2 is a front view of a support beam portion of the elevator device, and FIG. 3 is a side view of the support beam portion of the elevator device. 4 and FIG. 4 are enlarged views of the main part of the suspension rod part, FIG. 5 is an enlarged view of the main part of the suspension rod part showing a state where the spacer, the additional elastic body, the additional plate and the additional nut are attached, and FIG. FIG. 7 is a plan view of the spacer viewed from above, FIG. 8 is a side view of the spacer, and FIG. 9 is a diagram of the spacer. It is the top view seen from the downward direction.

  As shown in FIGS. 1, 2 and 3, the existing elevator apparatus is attached to the hoistway wall 1a via the hoisting body for raising and lowering the hoistway 1, that is, the car 2 and the counterweight 3, and the rail bracket 4. The guide rail 5 that guides the up-and-down movement of the elevating bodies 2 and 3, the support beam 6 installed on the upper portion of the guide rail 5, the rope 7 that suspends the car 2 and the counterweight 3, and the rope 7 slides A suspension pulley 8 that can be freely wound, a support body 9 that rotatably supports the suspension pulley 8, and lower ends of the support body 9 are connected to the left and right portions of the support body 9, and inserted into the support beam 6. A suspension rod 10, a nut 11 that is screwed to the suspension rod 10 and fixes the suspension rod 10 on the upper portion of the support beam 6, and is inserted through the suspension rod 10 and arranged so as to contact the upper surface of the support beam 6. First plate 2, an elastic body 13 inserted through the suspension rod 10 and disposed so as to be in contact with the upper surface of the first plate 12, and a first inserted through the suspension rod 10 and disposed between the elastic body 13 and the nut 11. 2, a lock nut 15 that is screwed onto the suspension rod 10 and is in contact with the upper surface of the nut 11, and a split pin 16 that is attached to the upper end of the suspension rod 10.

  In the existing elevator apparatus configured as described above, the vibration is transmitted from the suspension rod 10 to the support beam 6 and then from the support beam 6 to the hoistway wall 1a in accordance with the elevating movement of the elevating bodies 2 and 3. Further, Reduction of vibration may be desired.

  Therefore, in the present embodiment, as shown in FIGS. 5 and 6, the spacer 20 is inserted through the suspension rod 10 and is in contact with the upper surface of the second plate 14, and the suspension rod 10 is inserted. The additional elastic body 21 disposed so as to contact the upper surface of the spacer 20, the additional plate 22 inserted through the suspension rod 10 and disposed so as to contact the upper surface of the additional elastic body 21, and the suspension rod 10 And an additional nut 23 disposed so as to be in contact with the upper surface of the additional plate 22.

  Further, as shown in FIGS. 7, 8, and 9, the spacer 20 has a lower dimension than the outer dimension of the nut 11, that is, a diameter larger than the width dimension of the nut 11 and a height dimension of the nut 11. A hole 20 a having a large depth dimension is formed, and the outer diameter thereof is set to be smaller than the outer diameter of the second plate 14.

  Next, the work procedure of the attachment method of the suspension rod vibration isolator of this embodiment is demonstrated.

  First, the split pin 16 is removed from the suspension rod 10, and the lock nut 15 is removed from the suspension rod 10 to obtain the state shown in FIG. Next, as shown in FIG. 5, the spacer 20 is inserted from the upper end of the suspension rod 10, and the existing nut 11 is stored in the hole 20 a formed on the lower surface of the spacer 20. In this state, the additional elastic body 21 and then the additional plate 22 are inserted into the suspension rod 10 and the additional nut 23 is screwed. Then, the additional nut 23 is screwed until the deflection amount of each of the existing elastic body 13 and the additional elastic body 21 reaches a specified value h. At this time, the worker confirms that the amount of deflection of both elastic bodies 13 and 21 is the specified value h, and also the gap δ between the support beam 6 and the suspension pulley 8 and the first plate 12 and the suspension rod 10. It is confirmed that the distance L to the upper end of δ is δ−n and L + n as shown in FIG. This is because the nut 11 is separated from the first plate 12 in the hole 20 a of the spacer 20, receives a load by the additional nut 23, and the vibration is absorbed by each of the existing elastic body 13 and the additional elastic body 21. It is for confirming that it became. Thereafter, as shown in FIG. 6, the lock nut 15 is screwed onto the suspension rod 10 as a rotation stop for the additional nut 23, and then the split pin 16 is attached to complete the operation.

  According to the present embodiment, with a simple structure of attaching the additional elastic body 21, it is possible to prevent vibration from being transmitted to the building, and to improve the comfort. Since the existing nut 11 is not removed, that is, the suspension rod 10 can be attached while being loaded, labor and time required for the work can be greatly reduced.

  FIG. 10 is an enlarged view of a main part of a suspension rod portion showing another embodiment according to the method of attaching the elevator suspension rod vibration isolator of the present invention. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was mentioned above.

  In the mounting method of the suspension rod vibration isolator according to another embodiment shown in FIG. 10, the two additional elastic bodies 21a and 21b are overlapped after the spacer 20 is mounted in the same procedure as the above-described embodiment. Then, it is inserted through the suspension rod 10. Next, the additional plate 22 and the additional nut 23 are mounted in the same procedure as described above.

  According to another embodiment, transmission of vibration can be further reduced by arranging a plurality of the additional elastic bodies 21a and 21b in an overlapping manner. In addition, although the example which provided the two additional elastic bodies 21a and 21b was shown in other embodiment, this invention is not restricted to this, As long as the dimension of the suspension rod 10 permits, a several additional elastic body is piled up. Can be arranged.

It is a schematic block diagram which shows one Embodiment which concerns on the attachment method of the elevator hanging rod vibration isolator of this invention. It is a front view of the support beam part of an elevator apparatus. It is a side view of the support beam part of an elevator apparatus. It is a principal part enlarged view of a hanging rod part. It is a principal part enlarged view of the suspension rod part which shows the state which attached the spacer, the additional elastic body, the additional plate, and the additional nut. It is a principal part enlarged view of the suspension rod part which shows the state which screwed the lock nut after the additional nut attachment. It is the top view which looked at the spacer from the upper direction. It is a side view of a spacer. It is the top view which looked at the spacer from the downward direction. It is a principal part enlarged view of the suspension rod part which shows other embodiment which concerns on the attachment method of the elevator suspension rod vibration isolator of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Passenger car 3 Counterweight 4 Rail bracket 5 Guide rail 6 Support beam 7 Rope 8 Suspension pulley 9 Support body 10 Hanging rod 11 Nut 12 First plate 13 Elastic body 14 Second plate 15 Lock nut 16 Split pin 20 Spacer 21, 21a, 21b Additional elastic body 22 Additional plate 23 Additional nut

Claims (2)

A car for raising and lowering the hoistway and a counterweight; and a car guide rail that is erected on the hoistway so as to extend up and down, and that guides up and down movement of the car, and that extends up and down. A counterweight guide rail standing on the hoistway and guiding the lifting and lowering movement of the counterweight, a support beam erected on the upper part of the hoistway, a rope for suspending the car and the counterweight, and the rope A suspension pulley that is slidably wound, a suspension rod that suspends the suspension pulley, a suspension rod that is inserted into the support beam, and a nut that is screwed to the suspension rod and that fixes the suspension rod on the upper portion of the support beam A first plate that is inserted through the suspension rod and arranged to contact the upper surface of the support beam; and a first plate that is inserted through the suspension rod and contacts the upper surface of the first plate. The elastic body arranged in this manner, the second plate inserted through the suspension rod and disposed between the elastic body and the nut, and screwed into the suspension rod so as to contact the upper surface of the nut In an elevator apparatus having a lock nut disposed on the elevator rod mounting vibration isolator for reducing vibration transmitted from the suspension rod to the support beam,
After removing the lock nut from the suspension rod, a spacer in which a hole having a dimension larger than the outer dimension of the nut is formed on the lower surface thereof is inserted from the upper end of the suspension rod so as to cover the nut, Next, the additional elastic body is disposed so as to contact the upper surface of the spacer, and thereafter, the additional plate is disposed so as to contact the upper surface of the additional elastic body, and then the additional nut is attached to the suspension rod. A method of attaching an elevator suspension rod vibration isolator, wherein the installation nut is screwed and screwed until the respective deflection amount of the elastic body and the additional elastic body reaches a specified value.   The elevator suspension rod vibration isolator mounting method according to claim 1, wherein a plurality of the additional elastic bodies are arranged in a stacked manner.

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