JP2009214981A - Hoisting machine device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a hoisting machine device of an elevator can easily adjust the clearance between a pair of coming-off prevention members and a main rope, and short the adjusting time of the clearance. <P>SOLUTION: The pair of coming-off prevention members 7 provided on a pair of arm members 8 are respectively opposed on an outer peripheral part of a drive sheave 3 having the main rope 5 for hanging the car to be wound through the main rope 5. Opposing parts 8b of respective arm members 8 are opposed to each other. The clearance between the respective coming-off prevention members 7 changes according to the change of the clearance between the respective opposing parts 8b. A reference member 9 provided on a hoisting machine body 2 is disposed between the respective opposing parts 8b. An adjusting device 10 has a clearance adjusting body 13 can adjust the clearance of the respective opposing parts 8b and a biasing spring 14 for holding the position with respect to the reference member 9 of the clearance adjusting body 13 so that the clearances of the respective coming-off prevention members 7 to the main rope 5 become equal. The respective arm members 8 can be fixed to the hoisting machine body 2 by fastening bolts 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator hoist apparatus for raising and lowering a car suspended by a main rope.

  In a conventional elevator hoist, an elevator main rope in which a pair of restraining plates are arranged so as to sandwich the drive sheave in the radial direction in order to prevent the main rope that suspends the car from coming off the drive sheave. An anti-separation device is provided. Each suppression board is arrange | positioned so that a predetermined | prescribed clearance gap may be made between main ropes.

  In a conventional elevator main rope locking device, each restraint plate is individually attached to a pair of arms that are rotatable relative to the hoisting motor in order to easily adjust the gap between each restraint plate and the main rope. It has been. The gap between each suppression plate and the main rope is individually adjusted by the rotation of each arm (for example, see Patent Document 1).

JP 2002-362863 A

  However, since each adjustment of the gap between each restraining plate and the main rope is performed individually, it takes time to adjust the gap, and the adjustment time cannot be shortened.

  The present invention has been made to solve the above-described problems, and can easily adjust the gap between the pair of locking members and the main rope, and shorten the adjustment time of the gap. It is an object of the present invention to provide an elevator hoist apparatus capable of achieving the above.

  The elevator hoist apparatus according to the present invention includes a hoisting machine main body, a main rope for suspending a car, and a drive sheave rotated by the hoisting machine main body, and an outer peripheral portion of the drive sheave via the main rope. Each of the opposing parts has a pair of anti-slip members, a holding part that holds the anti-skid member, and an opposing part provided in the holding part. A pair of arm members that change the distance between the locking members and the hoisting machine main body, can be displaced with respect to the reference member and the reference member that are arranged between the facing parts, and the distance between the facing parts can be adjusted Adjustment means having a gap adjusting body and an urging member that holds the position of the gap adjusting body with respect to the reference member so that the gaps of the locking members with respect to the main rope are equal to each other, and a holding portion for the hoisting machine main body Fixed arm position It is provided with means.

  In the elevator hoist apparatus according to the present invention, the interval between the anti-separation members changes according to the change in the interval between the opposing portions of the arm members, and the adjusting means adjusts the interval between the opposing portions. Since there is an adjustable distance adjusting body and an urging body that holds the position of the distance adjusting body with respect to the reference member so that the gaps of the locking members with respect to the main rope are equal, by operating the distance adjusting body By adjusting the distance between the opposing portions, the gap between each locking member and the main rope can be adjusted at the same time, and the gap can be adjusted easily and in a short time.

Embodiment 1 FIG.
1 is a front view showing an elevator hoist apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a perspective view showing the main cable slip prevention device of FIG. In the figure, a hoisting machine 1 provided in a hoistway includes a hoisting machine main body 2 including a motor, and a driving sheave 3 provided in the hoisting machine main body 2 and rotated by the driving force of the hoisting machine main body 2. And have. The hoisting machine 1 is a thin hoisting machine in which the dimension in the axial direction (the direction along the rotation axis of the drive sheave 3) is smaller than the dimension in the radial direction.

  The hoisting machine main body 2 includes a front surface 2a and a back surface 2b facing each other in the thickness direction (axial direction) of the hoisting machine main body 2, and a bottom surface 2c and an upper surface respectively interposed between edges of the front surface 2a and the back surface 2b. 2d and a pair of side surfaces 2e are provided. The drive sheave 3 is disposed on the front surface 2 a side of the hoisting machine body 2.

  A plurality of main rope grooves 4 along the rotational direction of the drive sheave 3 are provided on the outer peripheral portion of the drive sheave 3 side by side in the thickness direction (axial direction) of the drive sheave 3. A plurality of main ropes 5 for suspending a car and a counterweight (not shown) are wound around the drive sheave 3 along the main rope groove 4. The car and the counterweight are moved up and down in the hoistway by the rotation of the drive sheave 3.

  The hoisting machine main body 2 is provided with a main rope disengagement prevention device 6. The main rope detachment prevention device 6 is attached to the pair of arm members 8 to which the detachment prevention members 7, the detachment prevention members 7 are individually attached, and the hoisting machine main body 2, and is disposed between the arm members 8. The reference member 9, the adjusting device (adjusting means) 10 that adjusts the position of each arm member 8 with respect to the reference member 9, and a pair of fixing members that can individually fix the position of each arm member 8 with respect to the hoisting machine body 2 And a bolt (arm fixing means) 11.

  Each detachment prevention member 7 faces the outer peripheral portion of the drive sheave 3 via the main rope 5. Each detachment prevention member 7 is disposed so as to sandwich the drive sheave 3 in the radial direction of the drive sheave 3. One locking member 7 is disposed in the vicinity of the winding start portion of the main rope 5 with respect to the driving sheave 3, and the other locking member 7 is disposed in the vicinity of the winding end portion of the main rope 5 with respect to the driving sheave 3. As shown in FIG. 2, the width of each locking member 7 is substantially the same as the thickness (dimension in the axial direction) of the drive sheave 3.

  Each arm member 8 can be displaced with respect to the hoisting machine main body 2 in a direction in which the detachment prevention member 7 is in contact with and away from the main rope 5. The arm member 8 is integrally formed by bending a plate having a predetermined shape. Further, each arm member 8 has a holding portion 8a provided with the stopper member 7 and a facing portion 8b provided on the holding portion 8a and disposed on the back surface 2b side of the hoisting machine body 2. Yes.

  The holding portion 8a connects the anti-separation member 7 and the facing portion 8b while avoiding the hoisting machine main body 2. The holding portion 8a is guided in a direction along the back surface 2b while being in contact with the back surface 2b of the hoisting machine main body 2. Each detachment prevention member 7 is displaced in a direction in which it comes in contact with and separates from the main rope 5 by the holding portion 8a being guided in the direction along the back surface 2b.

  Each opposing part 8b has mutually opposed about the direction along the back surface 2b of the winding machine main body 2. FIG. The interval between the facing portions 8b changes when one holding portion 8a is displaced with respect to the other holding portion 8a in the direction along the back surface 2b. The interval between the anti-slip members 7 changes according to the change in the interval between the opposing portions 8b.

  The reference member 9 is attached to the back surface 2b of the hoisting machine main body 2, and is disposed between the facing portions 8b. In this example, the reference member 9 is arranged on the axis of the drive sheave 3. Further, the reference member 9 is fixed to the hoisting machine main body 2 by a plurality of bolts 12.

  The adjusting device 10 is disposed on the back surface 2b side of the hoisting machine main body 2. In addition, the adjusting device 10 can be displaced with respect to the reference member 9 and can adjust the interval adjusting body 13 that can adjust the interval between the opposing portions 8 b and the anti-separation members 7 with respect to the main rope 5 wound around the drive sheave 3. A pair of biasing springs (biasing bodies) 14 that hold the position of the interval adjusting body 13 relative to the reference member 9 so that the gaps δ1 and δ2 are equal to each other are provided.

  The space | interval adjustment body 13 can be displaced along the direction where each opposing part 8b opposes. Further, the distance adjusting body 13 is screwed into an adjustment bolt (long bolt) 15 that slidably passes through the one facing portion 8b, the reference member 9 and the other facing portion 8b in this order, and a thread portion of the adjusting bolt 15. And an adjusting nut 16.

  The adjustment bolt 15 is disposed along the direction in which the facing portions 8b face each other. The pitch of the thread of the adjustment bolt 15 is set to a predetermined value (for example, 1 mm) set in advance. Therefore, when the adjustment nut 16 is rotated with respect to the adjustment bolt 15, the adjustment bolt 15 is moved by a distance corresponding to the rotation amount. That is, the position of the adjustment nut 16 with respect to the adjustment bolt 15 is a position corresponding to the screwing amount of the adjustment nut 16 with respect to the adjustment bolt 15.

  The urging springs 14 are arranged to be contracted between the facing portions 8b and the reference member 9, respectively. Thereby, each opposing part 8b is urged | biased in the direction which leaves | separates mutually on the basis of the reference | standard member 9. FIG. An adjustment bolt 15 is passed through each biasing spring 14.

  The displacement of each facing portion 8 b in the direction away from each other is regulated between the head of the adjustment bolt 15 and the adjustment nut 16. By regulating the displacement of each facing portion 8b by the adjusting bolt 15 and the adjusting nut 16, the interval between the facing portions 8b is maintained. Adjustment of the space | interval of each opposing part 8b is performed by adjustment of the screwing amount with respect to the adjustment bolt 15 of the adjustment nut 16.

  In addition, the interval adjusting body 13 is held with respect to the reference member 9 by the urging forces of the urging springs 14 balancing each other. The strength of each biasing spring 14 is the same. Thereby, the position of the distance adjusting body 13 with respect to the reference member 9 is held at a position (center holding position) where the distance between each facing portion 8b and the reference member 9 is the same. The gaps δ1 and δ2 of the anti-slip members 7 with respect to the outer peripheral portion of the drive sheave 3 are equal to each other because the distances between the facing portions 8b and the reference member 9 are the same. That is, each urging spring 14 holds the position of the distance adjusting body 13 with respect to the reference member 9 so that the gaps δ1 and δ2 are equal to each other.

  As shown in FIG. 3, bolt holding holes 17 through which the fixing bolts 11 are passed are provided in the holding portions 8 a of the arm members 8. Each bolt through hole 17 is a long hole along the direction in which the arm member 8 is displaced with respect to the hoisting machine main body 2.

  The position of the arm member 8 with respect to the hoisting machine main body 2 is fixed by fastening the fixing bolt 11 passed through the bolt through hole 17 to the back surface 2 b of the hoisting machine main body 2. The arm member 8 can be displaced with respect to the hoisting machine body 2 by loosening the fastening bolt 11.

  Next, a procedure for adjusting the gaps δ1 and δ2 between each anti-separation member 7 and the main rope 5 will be described. First, each fixing bolt 11 is loosened so that each arm member 8 can be displaced with respect to the hoisting machine main body 2. Thereafter, the adjustment nut 16 is tightened until each of the locking members 7 comes into contact with the main rope 5.

  Thereafter, the adjustment nut 16 is turned by a predetermined amount to loosen, and the interval between the facing portions 8b is widened. Thereby, each detachment prevention member 7 is evenly displaced in the direction away from the main rope 5. At this time, the distance at which each locking member 7 is separated from the main rope 5 is a distance corresponding to the amount of rotation of the adjustment nut 16. Therefore, for example, when adjusting the clearances δ1, δ2 between the anti-separation members 7 and the main rope 5 to 2 to 3 mm, if the adjustment bolt 15 has a thread with a pitch of 1.0 mm, the adjustment nut 16 is set to 4 It only needs to be loosened by ~ 6 turns.

  Thereafter, when the gaps δ1 and δ2 are secured, the fixing bolts 11 are tightened to fix the arm members 8 to the hoisting machine main body 2. Thereby, the displacement with respect to the hoisting machine main body 2 of each anti-separation member 7 and each arm member 8 is prevented. In this way, the gaps δ1 and δ2 between the anti-separation members 7 and the main rope 5 are adjusted simultaneously.

  In such an elevator hoist apparatus, the distance between the anti-separation members 7 changes in accordance with the change in the distance between the facing portions 8b of the arm members 8, and the adjusting device 10 A pair of biasing springs that hold the position of the distance adjusting body 13 with respect to the reference member 9 so that the gaps δ1 and δ2 of the locking members 7 with respect to the main rope 5 are equal to each other. 14, the gaps δ1 and δ2 between the anti-separation members 7 and the main rope 5 can be adjusted simultaneously by adjusting the interval between the opposing portions 8b by operating the interval adjusting body 13. The gaps δ1 and δ2 can be adjusted easily and in a short time.

  The interval adjusting body 13 includes an adjusting bolt 15 and an adjusting nut 16 screwed to the adjusting bolt 15, and the interval between the facing portions 8 b is adjusted by adjusting the screwing amount of the adjusting nut 16 to the adjusting bolt 15. Since the adjustment is made, even when the gaps δ1 and δ2 of the anti-separation members 7 with respect to the main rope 5 are not visible, the gaps δ1 and δ2 can be easily grasped by grasping the screwing amount of the adjustment nut 16. be able to. Thereby, for example, the gaps δ1 and δ2 can be easily adjusted without using a measuring instrument such as a gap gauge.

  In addition, since the reference member 9 and the adjusting device 10 are disposed on the back surface 2b of the hoisting machine body 2, for example, even when the work space cannot be secured around the drive sheave 3 due to the arrangement of the devices in the hoistway. A space outside the predetermined range located around the drive sheave 3 can be used as a work space, and a work space for adjusting the position of each anti-slip member 7 can be easily secured.

  In the above example, the reference member 9 and the adjusting device 10 are arranged on the back surface 2b of the hoisting machine main body 2. However, the reference member 9 and the adjusting device 10 may be arranged outside a predetermined range around the drive sheave 3. The reference member 9 and the adjusting device 10 may be disposed on any one of the bottom surface 2c, the top surface 2d, and each side surface 2e of the hoisting machine body 2. Even in this case, a space outside the predetermined range located around the drive sheave 3 can be used as a work space, and the work space can be secured at a position avoiding equipment in the hoistway.

  In the above example, the adjustment bolt 15 passes through the reference member 9. However, the adjustment bolt 15 may be disposed away from the reference member 9. In this case, only the urging spring 14 is arranged between each facing portion 8 b and the reference member 9.

Embodiment 2. FIG.
In the first embodiment, each arm member 8 is integrally formed, but the facing portion of each arm member 8 may be detachable from the holding portion.

  4 is a plan view showing an elevator hoist apparatus according to Embodiment 2 of the present invention. In the figure, each arm member 8 has a holding bracket (holding portion) 21 provided with a locking member 7 and a mounting bracket (opposing portion) 22 detachably attached to the holding bracket 21. Each arm member 8 can be displaced in a direction along the back surface 2b of the hoisting machine main body 2.

  Each holding bracket 21 is provided with a bolt through hole 17. Each bolt through hole 17 is a long hole along the direction in which the arm member 8 is displaced. Each holding bracket 21 can be fixed to the hoisting machine body 2 by a fixing bolt 11 passed through the bolt through hole 17.

  The mounting bracket 22 is attached to the holding bracket 21 by mounting bolts 23. The mounting brackets 22 face each other in the direction along the back surface 2b of the hoisting machine main body 2. The interval between the mounting brackets 22 varies depending on the displacement of each arm member 8 in the direction along the back surface 2b. The interval between the anti-separation members 7 changes according to the change in the interval between the mounting brackets 22.

  The mounting bracket 22 can be detached from the holding bracket 21 by removing the mounting bolt 23. Further, the reference member 9 can be detached from the hoisting machine main body 2 by removing the bolts 12. The adjusting device 10 is detached from the hoisting machine main body 2 by removing the mounting bracket 22 from the holding bracket 21 and removing the reference member 9 from the hoisting machine main body 2. Other configurations are the same as those in the first embodiment.

  Next, a procedure for adjusting the gaps δ1 and δ2 between each anti-separation member 7 and the main rope 5 will be described. FIG. 5 is a cross-sectional view showing a state in which the reference member 9, the adjusting device 10, and the mounting bracket 22 of FIG. 4 are removed from the hoisting machine main body 2. In the present embodiment, in the same manner as in the first embodiment, after adjusting the gaps δ1 and δ2 and fixing each arm member 8 to the hoisting machine main body 2, each bolt 12 and each mounting bolt 23 are removed. The reference member 9, the adjusting device 10, and the mounting bracket 22 are removed from the hoisting machine main body 2 while the holding brackets 21 are fixed to the hoisting machine main body 2.

  In such an elevator hoist apparatus, the mounting bracket 22 of each arm member 8 can be detached from the holding bracket 21 and the reference member 9 can be detached from the hoist machine body 2. Sometimes unnecessary parts can be removed. Therefore, the space in the hoistway can be used effectively.

Embodiment 3 FIG.
FIG. 6 is a rear view showing an elevator hoist apparatus according to Embodiment 3 of the present invention. In the figure, the back surface 2b of the hoisting machine main body 2 is provided with a gauge (a ruler) 31 for measuring the distance between the facing portions 8b. The gauge 31 is disposed along the direction in which each arm member 8 is displaced. The interval between the facing portions 8b is adjusted while the scale displayed on the gauge 31 is compared with the position of each facing portion 8b. Other configurations are the same as those in the first embodiment.

  In such an elevator hoist apparatus, since the hoisting machine main body 2 is provided with the gauge 31 for measuring the interval between the opposing portions 8b, the interval between the opposing portions 8b can be adjusted more accurately. Thus, the gaps δ1, δ2 between the anti-separation members 7 and the main rope 5 can be adjusted more accurately.

  In the above example, the gauge 31 is provided in the hoisting machine body 2, but the gauge 31 may be provided in any of the arm members 8. In this case, the gauge 31 is displaced together with the arm member 8 while being held by the arm member 8.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an elevator hoist apparatus according to Embodiment 1 of the present invention. It is sectional drawing along the II-II line of FIG. FIG. 3 is a perspective view showing the main rope disconnection prevention device of FIG. 2. It is a top view which shows the elevator hoist apparatus by Embodiment 2 of this invention. It is sectional drawing which shows the state from which the reference | standard member of FIG. 4, the adjustment apparatus, and the attachment bracket are removed from the winding machine main body. It is a rear view which shows the elevator hoist apparatus by Embodiment 3 of this invention.

Explanation of symbols

  2 Main body, 3 drive sheave, 5 main rope, 7 detachment prevention member, 8 arm member, 8a holding part, 8b facing part, 9 reference member, 10 adjusting device (adjusting means), 11 fixing bolt (arm fixing) Means), 13 spacing adjusting body, 14 biasing spring (biasing body), 15 adjusting bolt, 16 adjusting nut, 21 holding bracket (holding part), 22 mounting bracket (opposing part), 31 gauge.

Claims (5)

Hoisting machine body,
A drive sheave that is wound around a main rope that suspends a car and is rotated by the hoisting machine body,
A pair of locking members respectively facing the outer periphery of the drive sheave via the main rope;
Each of the holding portions holding the locking member and a facing portion provided in the holding portion, each of the facing portions facing each other, and each locking stop according to a change in the interval between the facing portions. A pair of arm members in which the distance between the members changes,
A reference member provided in the hoisting machine main body and disposed between the facing parts;
An interval adjuster that is displaceable with respect to the reference member and can adjust an interval between the opposing portions, and a gap between the anti-separation members with respect to the main rope are equal to each other, and the interval adjuster is relative to the reference member. An elevator hoist apparatus comprising: adjusting means having an urging body for holding a position; and arm fixing means capable of fixing the position of the holding portion with respect to the hoist main body. The interval adjusting body has an adjusting bolt and an adjusting nut screwed to the adjusting bolt,
2. The elevator hoist apparatus according to claim 1, wherein the interval between the opposing portions is adjusted by adjusting the screwing amount of the adjustment nut to the adjustment bolt.   The elevator hoist apparatus according to claim 1 or 2, wherein the adjusting means is disposed at a position outside a predetermined range located around the drive sheave. The facing part is removable from the holding part,
The elevator hoist apparatus according to any one of claims 1 to 3, wherein the reference member is removable from the hoist main body.   The gauge for measuring the space | interval of each said opposing part is provided in either the said winding machine main body or the said arm member, The Claim 1 thru | or 4 characterized by the above-mentioned. Elevator hoisting machine equipment.

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