JP5966996B2 - Auxiliary tool for main rope replacement - Google Patents

Description

  The present invention relates to an auxiliary tool used when replacing a main rope of an elevator.

  Patent Documents 1 to 3 describe an apparatus and a method for replacing a main rope in an elevator.

JP-A-3-106780 JP 10-338437 A JP 2000-118908 A

In the elevators described in Patent Documents 1 to 3, a hoisting machine is installed in a machine room.
On the other hand, the machine room-less elevator is not provided with a machine room above the hoistway. For this reason, a hoisting machine is installed in the lowest part of a hoistway, for example. When replacing the main rope in such an elevator, first, the end of the old main rope that has been used up to now (hereinafter also referred to as “old rope”) and the new main rope that will be used in the future (hereinafter referred to as “new rope”). ”). Then, the new rope is sent out while winding the old rope. When the old rope has been wound up, the old rope is separated from the new rope, and the cage and the counterweight are suspended by the new rope.

  Conventionally, when the main rope is replaced, the bent main rope may come into contact with equipment provided in the car and equipment installed in the hoistway. When the hoisting machine is installed at the lowermost part of the hoistway, the hoisting machine is often opened only at the entrance / exit of the main rope in order to prevent foreign matter from entering the hoisting machine. When such a hoisting machine is provided in the hoistway, when replacing the main rope, the position of the main rope inside the hoisting machine cannot be corrected from the outside of the hoisting machine. When replacing the main rope, if the main rope does not pass smoothly along the groove of the sheave, the main rope may become clogged inside the hoist, or the main ropes may contact each other inside the hoist there were.

The present invention has been made to solve the above-described problems. The objective of this invention is providing the auxiliary tool for main rope replacement | exchange which can perform the operation | work smoothly when replacing | exchanging a main rope.

The main rope replacement auxiliary tool according to the present invention is used when replacing the main rope of an elevator, and is a main rope replacement auxiliary tool arranged in the vicinity of a hoisting machine provided in a hoistway through a gantry. A guide having a through-hole formed therein, a support provided for arranging the guide so that the main rope that has been provided outside the hoisting machine from the rope entrance and exits the through-hole, and a support is provided. a bolt for fixing to the frame, Ru comprising a. Guide, by the support is fixed to the frame by bolts, Ru is disposed above the hoist. A long hole having a length in the axial direction of the through hole is formed in the support. The support is fixed to the gantry with bolts through the long holes. When the support is fixed to the gantry, the position of the guide can be adjusted in the vertical direction.
Further, the main rope replacement auxiliary tool according to the present invention is used when replacing the elevator main rope, and is disposed in the vicinity of the hoisting machine provided in the hoistway via the gantry. A guide having a through-hole formed therein, a support provided for arranging the guide so that a main rope that has been provided outside the hoisting machine from the rope entrance and exits through the through-hole, and a guide is provided. And a bolt for fixing the body to the gantry. The guide is arranged above the hoisting machine by fixing the support to the gantry with bolts. When the support body is fixed to the gantry, the bolt shaft is arranged in parallel to the rotary shaft of the hoisting sheave, and the position of the guide can be adjusted to rotate around the bolt shaft. .

By using the auxiliary tool according to the present invention, the work can be smoothly performed when the main rope of the elevator is replaced .

It is a figure which shows the whole elevator apparatus structure. It is a figure which shows the attachment state of the auxiliary tool for main rope replacement | exchange in Embodiment 1 of this invention. It is a front view of the auxiliary tool for main rope replacement shown in FIG. It is a side view of the auxiliary tool for main rope replacement shown in FIG. It is a top view of the auxiliary tool for main rope replacement shown in FIG. It is a figure which shows the attachment state of the auxiliary tool for main rope replacement | exchange in Embodiment 1 of this invention. It is a side view of the auxiliary tool for main rope replacement shown in FIG. It is a top view of the auxiliary tool for main rope replacement shown in FIG.

  The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating an overall configuration of an elevator apparatus. FIG. 1 shows a configuration of a machine room-less elevator as an example. That is, the elevator apparatus shown in FIG. 1 does not include a machine room above the hoistway 1.

  The elevator car 2 and the counterweight 3 are suspended in the hoistway 1 by the main rope 4. The main rope 4 is an example of a means for suspending the car 2 and the counterweight 3.

  FIG. 1 shows an example in which the car 2 is suspended in the hoistway 1 by 2: 1 roping. One end of the main rope 4 is fixed to the terminal fixing portion 6 via the spring 5. The terminal fixing unit 6 is provided at the top of the hoistway 1. The main rope 4 extends downward from the terminal fixing portion 6, passes around the side of the car 2, and is wound around the return wheel 7. The return wheel 7 is provided at the lower part of the car 2. The main rope 4 is turned from the vertical direction to the horizontal direction by being wound on one return wheel 7, and then further turned in the vertical direction by being wound on the other return wheel 7.

  The main rope 4 extends upward from the return wheel 7 and is wound around the return wheel 8 through the side of the car 2. The return wheel 8 is provided at the top of the hoistway 1. The main rope 4 is turned from the vertical direction to the horizontal direction by being wound around one return wheel 8, and then further turned in the vertical direction by being wound around the other return wheel 8.

  The main rope 4 extends downward from the return wheel 8 and is wound around the sheave 10 of the hoisting machine 9. The hoisting machine 9 is installed at the lowermost part of the hoistway 1 through the gantry 11. The hoisting machine 9 includes a housing 12 in addition to the sheave 10. The casing 12 forms the outer shape of the hoisting machine 9. An opening (rope entrance / exit) through which the main rope 4 passes is formed on the upper surface of the housing 12. The sheave 10 is disposed inside the housing 12. The main rope 4 from the return wheel 8 passes through the rope entrance formed in the housing 12 and is wound around the sheave 10.

  The main rope 4 is turned 180 ° by being wound around the sheave 10. The main rope 4 extends upward from the sheave 10, passes through another rope doorway formed in the housing 12, and is wound around the return wheel 13. The return wheel 13 is provided at the top of the hoistway 1. The main rope 4 is turned 180 ° by being wound around the return wheel 13. The main rope 4 extends downward from the return wheel 13 and is wound around the suspension wheel 14. The suspension wheel 14 is provided in the upper part of the counterweight 3. The main rope 4 is turned 180 ° by being wound around the suspension wheel 14.

  The main rope 4 extends upward from the suspension wheel 14. The main rope 4 is fixed to the terminal fixing portion 16 through the spring 15 at the other end. The terminal fixing part 16 is provided at the top of the hoistway 1.

Next, an auxiliary tool used when the main rope 4 is replaced will be described.
FIG. 2 is a diagram showing an attachment state of the main rope replacement auxiliary tool according to Embodiment 1 of the present invention. FIG. 3 is a front view of the main rope replacement auxiliary tool shown in FIG. 2. FIG. 4 is a side view of the main rope replacement auxiliary tool shown in FIG. 2. FIG. 5 is a plan view of the main rope replacement auxiliary tool shown in FIG. 2. 3 to 5 show an auxiliary tool (rope guide assembly 17) arranged in the vicinity of the rope entrance of the hoisting machine 9. FIG.

The rope guide assembly 17 includes a guide 18 and a support arm 19.
A through hole 20 is formed in the guide 18. The through-hole 20 is a hole through which the old main rope 4 used until now and the new main rope 4 used from now on pass when the main rope 4 is replaced. FIG. 5 shows an example where four through holes 20 are formed in the guide 18. The number of through holes 20 is appropriately set according to the number of main ropes 4 to be replaced.

The guide 18 includes, for example, a first guide part 21, a second guide part 22, and a bolt 23.
The first guide portion 21 and the second guide portion 22 each have a block shape. A recess 24 having a semicircular cross section is formed in the first guide portion 21. The recess 24 is a groove for forming the through hole 20. For this reason, the four recessed parts 24 are formed in the same surface in the 1st guide part 21 in this Embodiment in parallel.

  A recess 25 having a semicircular cross section is formed in the second guide portion 22. The recess 25 is a groove for forming the through hole 20 together with the recess 24. For this reason, the four recessed parts 25 are formed in the 2nd guide part 22 in this Embodiment on the same surface in parallel.

  The bolt 23 is a fastener for fixing the second guide portion 22 to the first guide portion 21. In order to fix the second guide portion 22 to the first guide portion 21, a fastener other than a bolt may be used. Further, the second guide portion 22 may be fixed to the first guide portion 21 using means other than the fastener. The first guide portion 21 and the second guide portion 22 are arranged so that the surface on which the recess 24 is formed and the surface on which the recess 25 is formed are opposed to each other, and are fixed by the bolts 23. By fixing the second guide portion 22 to the first guide portion 21 with the bolt 23, the through hole 20 is formed by the recess 24 and the recess 25. If the bolt 23 is removed, the second guide portion 22 can be removed from the first guide portion 21.

  The support arm 19 constitutes a support for arranging the guide 18 at an appropriate position with respect to the rope entrance of the hoisting machine 9. The guide 18 is provided on the support arm 19. In the present embodiment, the case where the first guide portion 21 of the guide 18 is provided at one end portion of the support arm 19 is shown as an example.

  The support arm 19 is made of, for example, a bar-shaped member having a U-shaped cross section. A long hole 26 is formed in the support arm 19. The long hole 26 has a length in the axial direction of the through hole 20. A plurality of long holes 26 are formed in the support arm 19. These long holes 26 are arranged in a straight line along the axial direction of the through hole 20.

  The long hole 26 is a hole for fixing and position adjustment. The support arm 19 is fixed to the fixed body of the hoistway 1 through the long hole 26. In the present embodiment, the case where the support arm 19 is fixed to the mount 11 for the hoisting machine 9 with the bolt 27 is shown as an example. When the support arm 19 is fixed to the gantry 11 by the bolts 27, the guide 18 is disposed so that the through hole 20 is disposed above the hoisting machine 9 and the axial direction thereof is directed vertically. When the main rope 4 is replaced, as shown in FIG. 2, the guide 18 is arranged so that the main rope 4 that has come out of the hoisting machine 9 from the rope entrance and exit passes through the through hole 20.

  The position of the guide 18 can be easily adjusted by loosening the bolt 27 and moving the support arm 19 and then tightening the bolt 27 again. The guide 18 can be moved in the vertical direction and in the direction of rotation about the axis of the bolt 27. In the present embodiment, screw holes are formed in the gantry 11 so that when the support arm 19 is fixed to the gantry 11 with the bolts 27, the axis of the bolt 27 is parallel to the rotation axis of the sheave 10.

  Moreover, FIG. 6 is a figure which shows the attachment state of the auxiliary tool for main rope replacement | exchange in Embodiment 1 of this invention. FIG. 7 is a side view of the main rope replacement auxiliary tool shown in FIG. 6. FIG. 8 is a plan view of the main rope replacement auxiliary tool shown in FIG. 6. 7 and 8 show an auxiliary tool (rope guide assembly 28) installed in the car 2. FIG.

The rope guide assembly 28 includes a guide 29 and a guide frame 30.
A through hole 31 is formed in the guide 29. The through hole 31 is a hole through which the old main rope 4 used up to now and the new main rope 4 used from now on pass when the main rope 4 is replaced. FIG. 8 shows an example in which four through holes 31 are formed in the guide 29. The number of through holes 31 is appropriately set according to the number of main ropes 4 to be replaced.

The guide 29 includes, for example, a first guide part 32, a second guide part 33, a bolt 34, and a guide fixing part 35.
The first guide part 32 and the second guide part 33 each have a block shape. A concave portion 36 having a semicircular cross section is formed in the first guide portion 32. The recess 36 is a groove for forming the through hole 31. For this reason, the four recessed parts 36 are formed in the 1st guide part 32 in this Embodiment on the same surface in parallel.

  A concave portion 37 having a semicircular cross section is formed in the second guide portion 33. The recess 37 is a groove for forming the through hole 31 together with the recess 36. For this reason, the four recessed parts 37 are formed in the 2nd guide part 33 in this Embodiment on the same surface in parallel.

  The bolt 34 is a fastener for fixing the second guide portion 33 to the first guide portion 32. In order to fix the second guide portion 33 to the first guide portion 32, a fastener other than a bolt may be used. Further, the second guide portion 33 may be fixed to the first guide portion 32 by using means other than the fastener. The first guide portion 32 and the second guide portion 33 are arranged so that the surface on which the concave portion 36 is formed and the surface on which the concave portion 37 is formed face each other, and are fixed by the bolts 34. By fixing the second guide portion 33 to the first guide portion 32 by the bolt 34, the through hole 31 is formed by the concave portion 36 and the concave portion 37. The second guide part 33 can be removed from the first guide part 32 by removing the bolt 34.

  The guide fixing part 35 is for fixing the first guide part 32 to the guide frame 30. The guide fixing part 35 is made of, for example, an L-shaped plate member. The first guide part 32 is fixed to the guide fixing part 35.

  The guide frame 30 constitutes a support for arranging the guide 29 at an appropriate position with respect to the car 2. The guide 29 is provided on the guide frame 30. In the present embodiment, the case where the guide fixing portion 35 of the guide 29 is provided on the upper surface of the guide mount 30 by the bolt 38 and the nut 39 is shown as an example.

  The guide frame 30 is fixed to the car 2 using bolts or the like. In the present embodiment, the case where the handrail device 40 is provided on the upper portion of the car 2 is shown as an example. In such a case, the guide frame 30 is provided on the crosspiece 41 of the handrail device 40. For example, the guide frame 30 is made of a member having an E-shaped cross section. The guide frame 30 is attached to the crosspiece 41 by using two lower plate-like members, bolts 42 and a collar 43. The method for attaching the guide mount 30 to the car 2 is not limited to the above.

  By fixing the guide mount 30 to the handrail device 40 using bolts 42 or the like, the guide 29 is disposed so that the through hole 31 is disposed on the side of the car 2 and the axial direction thereof is directed vertically. When the main rope 4 is replaced, as shown in FIG. 6, the guide 29 is arranged so that the main rope 4 passing through the side of the car 2 passes through the through hole 31. For example, a part of the main rope 4 from the return wheel 7 to the return wheel 8 passes through the through hole 31.

  Next, a procedure for replacing the main rope 4 using a pair of rope guide assemblies 17 and one rope guide assembly 28 will be described.

  When the main rope 4 is replaced, the rope guide assembly 17 is first fixed to the gantry 11. Specifically, the bolt 27 is removed from the gantry 11, the support arm 19 is applied to the side surface of the gantry 11, and the bolt 27 is passed through the long hole 26 and then tightened to the gantry 11. The bolt 27 may be replaced by a bolt used for other purposes.

  Next, the second guide portion 22 is removed from the first guide portion 21, and the main rope 4 is disposed along the concave portion 24 of the first guide portion 21. Then, the 2nd guide part 22 is fixed to the 1st guide part 21 with the volt | bolt 23 so that the main rope 4 may pass through the through-hole 20 formed by the recessed parts 24 and 25. FIG. At this time, the position of the guide 18 is adjusted so that the main rope 4 fits into the groove of the sheave 10 according to the feeding operation without loosening.

  The hoisting machine 9 is formed with a pair of rope doorways. A rope guide assembly 17 is attached to each of the rope entrances.

  Further, the rope guide assembly 28 is fixed to the car 2. Specifically, the guide base 30 is fixed to the crosspiece 41 of the handrail device 40 using bolts 42 or the like.

  Next, the second guide portion 33 is removed from the first guide portion 32, and the main rope 4 is disposed along the concave portion 36 of the first guide portion 32. Thereafter, the second guide portion 33 is fixed to the first guide portion 32 with the bolt 34 so that the main rope 4 passes through the through hole 31 formed by the recesses 36 and 37. At this time, the position of the guide 29 is adjusted so that the main rope 4 fits into the groove of the return wheel 7 in accordance with the feeding operation without loosening. Further, the position of the guide 29 is adjusted so that a sufficient gap is formed between the main rope 4 disposed on the side of the car 2 and the equipment of the car 2 and the equipment in the hoistway 1.

  When the attachment of the rope guide assemblies 17 and 28 is completed, the other end portion of the main rope 4 (old rope) is removed from the terminal fixing portion 16, and the end portion of the new rope is bound to the other end portion of the old rope. Further, one end of the old rope is removed from the terminal fixing portion 6. Then, the old rope is guided to the landing from one end side, and the new rope is sent out at the same time as the old rope is wound up at the landing. As a result, the new rope moves so as to sequentially pass through the suspension wheel 14, the return wheel 13, the rope guide assembly 17, the sheave 10, the rope guide assembly 17, the return wheel 8, the rope guide assembly 28, and the return wheel 7.

  When a sufficiently long new rope passes the return wheel 7, the new rope is separated from the old rope. Thereafter, one end of the new rope is attached to the terminal fixing portion 6 via the spring 5. Further, the other end of the new rope is attached to the terminal fixing portion 16 via the spring 15. When the attachment of the end of the new rope is completed, the rope guide assembly 17 is removed from the gantry 11. Further, the rope guide assembly 28 is removed from the car 2.

  By using the auxiliary tool having the above configuration, the main rope 4 can be replaced in a state where an appropriate tension is applied to the main rope 4. For this reason, the work can be smoothly performed when the main rope 4 is replaced. It is possible to prevent the main rope 4 from clogging inside the hoisting machine 9 and the main ropes 4 from contacting each other inside the hoisting machine 9. Moreover, it can prevent that the main rope 4 contacts the apparatus provided in the cage | basket | car 2, or the apparatus provided in the hoistway 1. FIG.

  In the present embodiment, the procedure for replacing the main rope 4 using the pair of rope guide assemblies 17 and one rope guide assembly 28 has been described. This is an example. Even if only one rope guide assembly 17 or only the rope guide assembly 28 is used, a certain effect can be expected. However, in the verification performed by the applicant, the use of the pair of rope guide assemblies 17 and the one rope guide assembly 28 has realized a significant improvement in work efficiency. For this reason, when the main rope 4 is replaced, it is preferable to use the above three rope guide assemblies.

  Moreover, in this Embodiment, the case where this auxiliary tool was used in the machine room less elevator with the most expectation of an effect was demonstrated. However, this is an example. The hoisting machine 9 may be arranged at other positions in the hoistway 1. The hoisting machine 9 may be installed in the machine room. Even in such a case, a certain effect can be expected by replacing the main rope 4 using the auxiliary tool.

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car 3 Balance weight 4 Main rope 5, 15 Spring 6, 16 Terminal fixing part 7, 8, 13 Return wheel 9 Hoisting machine 10 Sheave 11 Mount 12 Housing 14 Suspension wheel 17, 28 Rope guide assembly 18 , 29 Guide 19 Support arm 20, 31 Through hole 21, 32 First guide part 22, 33 Second guide part 23, 27, 34, 38, 42 Bolt 24, 25, 36, 37 Recess 26 Long hole 30 Guide mount 35 Guide fixing part 39 Nut 40 Handrail device 41 Crosspiece 43 Color

Claims (5)

A main rope replacement auxiliary tool that is used when replacing a main rope of an elevator and is arranged in the vicinity of a hoisting machine provided in a hoistway through a gantry,
A guide in which a through hole is formed;
The guide is provided, and a support body for arranging the guide so that a main rope that has come out of the hoisting machine from a rope doorway passes through the through hole;
A bolt for fixing the support to the mount;
With
The guide is disposed above the hoisting machine by fixing the support to the gantry with the bolt ,
A long hole having a length in the axial direction of the through hole is formed in the support,
The support is fixed to the gantry by the bolt through the elongated hole,
It said support when fixed to the frame, aid the replacement main ropes position of the guide Ru adjustable der vertically. The guide is
A first guide part formed with a first recess;
A second guide part formed with a second recess;
Fixing means for fixing the second guide part to the first guide part;
With
2. The main rope replacement according to claim 1, wherein the through hole is formed by the first concave portion and the second concave portion by fixing the second guide portion to the first guide portion by the fixing means. Auxiliary tool. The support is fixed by the bolt to a portion of the gantry disposed above the hoisting machine,
3. The main rope replacement auxiliary tool according to claim 1, wherein the guide is disposed above the mount by fixing the support to the mount by the bolt. 4. When the support is fixed to the gantry, the bolt shaft is arranged so as to be parallel to the rotary shaft of the hoisting sheave of the hoisting machine, and the position of the guide rotates around the bolt shaft. The auxiliary tool for replacing the main rope according to any one of claims 1 to 3 , which is adjustable in a direction. A main rope replacement auxiliary tool that is used when replacing a main rope of an elevator and is arranged in the vicinity of a hoisting machine provided in a hoistway through a gantry,
A guide in which a through hole is formed;
The guide is provided, and a support body for arranging the guide so that a main rope that has come out of the hoisting machine from a rope doorway passes through the through hole;
A bolt for fixing the support to the mount;
With
The guide is disposed above the hoisting machine by fixing the support to the gantry with the bolt ,
When the support is fixed to the gantry, the bolt shaft is arranged so as to be parallel to the rotary shaft of the hoisting sheave of the hoisting machine, and the position of the guide rotates around the bolt shaft. aid the replacement main rope Ru adjustable der direction.

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