JP5985538B2 - Brake changing device for elevator hoisting machine and brake changing method for elevator hoisting machine - Google Patents

Description

  Embodiments described herein relate generally to an elevator hoisting machine brake changing device and an elevator hoisting machine brake changing method.

  An elevator hoist generally includes a motor that generates a driving force, a main sheave that rotates together with the rotation shaft of the motor and transmits the driving force to a main rope, and a brake that applies a brake to the rotation shaft (for example, , See Patent Document 1).

  As the hoisting machine continues to be used, it may be necessary to remove the brake from the hoisting machine and replace it with a new one. For this reason, the brake is normally attached to the hoisting machine main body so that it can be extracted from the rotating shaft.

JP-A-8-59145

  Elevator hoisting machines are often arranged at the top of a hoistway. When the worker replaces the brake at such an arrangement position, the bolt that fixes the brake to the hoist is loosened, and the worker lifts the removed brake manually and moves it to the ceiling floor of the car. Let me down. Moreover, since the brake is installed at a position far from the floor, the worker needs to lift it in a poor state.

  For this reason, when carrying a heavy brake manually, it is easy to become an uneasy posture, and workability | operativity is not good.

  The present invention has been made in view of the above problems, and provides a brake replacement device for an elevator hoisting machine and a brake exchanging method for the elevator hoisting machine that enable an operator to replace the brake with a stable posture. The issue is to provide.

  A brake exchanging device for an elevator hoisting machine according to an embodiment of the present invention includes a suspension unit that has a hanging part that can be rotated in a horizontal direction from directly above a brake constituting the elevator hoisting machine to above a car. A lowering mechanism, an attachment means for detachably attaching the brake suspension mechanism to the hoisting machine, and a suspension member that is suspended by the suspension part and is supported so as to be movable in the direction of removing the brake from the rotating shaft of the hoisting machine And comprising.

  The elevator hoisting machine brake exchanging method according to the embodiment of the present invention includes a hanging part that can rotate and move in a horizontal direction from right above the brake constituting the elevator hoisting machine to above the car. Attaching the brake suspension mechanism to the hoisting machine, and attaching a suspension member to the suspension part so that the brake can be supported by the suspension member, and along the rotating shaft of the hoisting machine to which the brake gives a braking force A step of removing the brake from the rotating shaft by moving the brake, and a step of moving the brake to a predetermined position above the car by rotating the suspension part.

The side sectional view showing the upper part in the hoistway of an elevator in one embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The perspective view explaining the structure by which a movable jig is rotatably attached to a fixed jig with the brake switching apparatus of the elevator hoisting machine which concerns on one Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing that a wire is hung on a brake, and FIG. 4B is a diagram illustrating a brake changing device for an elevator hoisting machine according to an embodiment of the present invention. The side view which shows having removed the brake, (c) is the side view which has moved the brake which remove | deviated from the rotating shaft to the vicinity of the worker on a riding car.

  Hereinafter, an example of a brake exchange device for an elevator hoisting machine according to an embodiment will be described with reference to the accompanying drawings. FIG. 1 is a side sectional view showing an upper part of an elevator hoistway in the present embodiment. Note that the hoisting rope is omitted. FIG. 2 is a perspective view for explaining a configuration in which a movable jig is rotatably attached to a fixed jig in the elevator hoisting brake exchanging apparatus according to the present embodiment. FIG. 3 is a brake exchanging device for an elevator hoisting machine according to the present embodiment, in which (a) is a side view showing that a wire is applied to the brake, and (b) is a rotating shaft that moves the brake in the direction of the rotating shaft. FIG. 5C is a side view showing that the brake released from the rotating shaft is moved to the vicinity of the worker on the car.

  As shown in FIG. 1, the elevator 10 according to this embodiment includes a car 14 that moves up and down in a hoistway 12 and a hoisting machine that moves the car 14 up and down by winding and unwinding a rope (not shown). 16, a hoisting machine base 18 on the lower side of the hoisting machine 16, a hoisting machine base 20 positioned on the lower side of the hoisting machine base 18, a main rail 24 extending in the vertical direction in the hoistway 12, and a counter Rail 26.

  A guide shoe 28 is attached to the car 14, and the car 14 moves up and down along the main rail. The hoisting machine base 18, the main rail 24 and the counter rail 26 are all fastened to the hoisting machine base 20.

  The hoist 16 includes a sheave 30, a rotating shaft 32 to which the sheave 30 is attached and fixed, and a brake 34 that applies a braking force to the rotation of the rotating shaft 32. The brake 34 is detachably fixed to one side of the rotary shaft of the hoisting machine main body 38 by brake mounting bolts 36a and 36b. A brake body (brake lining, not shown) constituting the brake 34 is detachably fixed to one end of the rotating shaft 32.

  As shown in FIGS. 1 to 3, the brake changer 40 (hereinafter simply referred to as the brake changer 40) of the elevator hoist according to the present embodiment rotates from directly above the brake 34 to above the car 14. A brake suspension mechanism 44 having a movable suspension portion 42, eyebolts 48 a and 48 b as attachment means 46 for detachably attaching the brake suspension mechanism 44 to the hoist 16, and a suspension portion 42. And a wire W as the hanging member 50. The wire W supports the brake 34 so as to be movable in a direction in which the brake 34 is extracted from the rotary shaft 32 of the hoisting machine 16.

  In the present embodiment, the brake suspension mechanism 44 includes a fixed jig 52 that is attached to the hoisting machine 16 and a movable jig 58 that is detachably attached to an attachment portion 54 of the fixed jig 52.

  The fixing jig 52 is fixed to the upper surface side of the hoisting machine main body 38 with an eye bolt (I bolt) 48a so that the mounting portion 54 faces the brake 34 side. The fixing jig 52 is made of, for example, iron and a combination of L-shaped members, and is formed with a notch 52v (see FIG. 2) for fixing to the hoisting machine main body 38 with an eyebolt 48a. is there. The hanging portion 42 is configured to be able to slide the wire W in the direction along the rotation axis 32. In the present embodiment, the hanging portion 42 includes a pipe-like member P having a smooth cylindrical surface S on the upper side. Has been. The pipe-shaped member P is, for example, a pipe member made of iron and having an outer diameter of about 300 mm.

The movable jig 58 is provided on the above-described hanging portion 42 on which the wire W is hung, the hanging portion support member 56 to which the hanging portion 42 is fixed, and the hanging portion support member 56, and the attachment portion of the fixed jig 52. 54 to be attached. As a specific example, the mounting portion 54 is configured by two projecting portions 54u and 54b disposed along the vertical direction, and the mounted portion 60 is disposed between the two projecting portions 54u and 54b. It is composed of one protrusion 60t. The two protrusions 54u and 54b each have a vertical pin insertion hole , and the protrusion 60t has a vertical pin insertion hole .

The movable jig 58 is fixed to the fixed jig 52 so that the movable jig 58 can be rotated around the pin 64 by pins 64 that are sequentially inserted through the protrusions 54u, 60t, and 54b. The pin 64 is an iron pin having a thickness of about M16, for example.

(Function, effect)
Hereinafter, the operation and effect of the present embodiment will be described. In the present embodiment, the car 14 is raised to the uppermost position, and the fixing jig 52 is fixed to the hoisting machine main body 38 with the eye bolt 48a. At this time, the eyebolt 48a is loosened in advance, and the fixing jig 52 is fixed to the eyebolt from the outside of the car 14 so that the notch 52v of the fixing jig 52 enters between the lower neck 48n of the eyebolt 48a and the hoisting machine body 38. It moves so that it may approach 48a, and the notch part 52v is contact | abutted to the bolt part 48k (refer Fig.3 (a)) of the eyebolt 48a. As a result, this movement of the fixed jig 52 is restricted. Then, the fixing jig 52 is fixed by rotating the eyebolt 48a in the tightening direction and sandwiching the notch 52v between the lower neck 48n and the hoisting machine main body 38.

  And the to-be-attached part 60 of the movable jig 58 is arrange | positioned at the attaching part 54 of the fixed jig 52, and the pin 64 is made to pass through the protrusion parts 54u, 60t, and 54b sequentially.

  As a result, the process of attaching to the hoist 16 the brake suspension mechanism 44 having the suspension portion 42 that can rotate and move from directly above the brake 34 to above the car 14 is completed.

  Next, a wire W is applied to the suspension part 42 and the brake 34 so that the brake 34 can be suspended with the wire W, the brake mounting bolts 36a and 36b are loosened and removed, and the brake 34 is slid in the direction of the rotary shaft 32. The brake 34 is removed from the rotary shaft 32 by removing the brake 34 from the rotary shaft 32.

  In FIGS. 1 and 3, for the sake of simplification, the wire W is drawn in a single line on the brake 34, but in reality, the brake 34 is bundled with the wire W in this embodiment. As a result, the brake 34 that is detached from the rotating shaft 32 is prevented from being detached from the wire W.

  Further, the operator performs a step of moving the brake 34 to a predetermined position K above the car by rotating the movable jig 58. In this embodiment, the predetermined position K is a position above the mounting position of the brake 34. Then, with the movement of the movable jig 58 stopped and the brake 34 positioned at the predetermined position K, the operator manually lifts the brake 34 and removes it from the wire W and places it on the mounting position.

  Therefore, in the present embodiment, when the brake 34 is detached (extracted) from the rotating shaft 32, the brake 34 is held by the wire W, so that it is not necessary for the operator to hold the brake 34 manually. Then, by rotating the movable jig 58, the brake 34 is moved to a position above the placement position intended by the operator, and the operator removes the brake 34 from the wire W while lifting the brake 34 to a predetermined position K on the car. Since it is mounted, the operator can replace the brake 34 with a stable posture.

  The brake suspension mechanism 44 includes a fixed jig 52 and a movable jig 58. The fixed jig 52 is fixed to the hoisting machine main body 38, and then the movable jig 58 is attached to the fixed jig 52. Therefore, it is easy to mount the fixed jig 52, and the work of mounting the fixed jig 52 is good. That is, the workability of attaching the brake suspension mechanism 44 to the hoisting machine main body 38 is good.

  In addition, a smooth cylindrical surface S on which the wire W is hung is formed on the upper portion of the hanging portion 42. In the step of removing the brake from the rotating shaft 32, the wire W is slid in the same direction as the moving direction of the brake 34. Move. Therefore, the brake 34 can be easily extracted from the rotating shaft 32, and the workability is good.

  In the present embodiment, the example in which the wire W is used as the hanging member 50 has been described. However, the hanging member 50 is not limited to the wire W, and the brake 34 is held by the hanging portion 42 along the rotating shaft 32. As long as it can be moved manually in the selected direction and can be removed manually, it is not particularly limited. For example, it may be a ribbon-like hanging member, or a handbag-like hanging member may be used by passing the handbag through the hanging portion 42. It is also possible to use a suspension member to which a clamp-like member that clamps the brake 34 from both sides is attached.

  Further, in the present embodiment, the example in which the member constituting the hanging portion 42 is the pipe-shaped member P has been described. However, the brake 34 is held by the hanging portion 42 and can be slid in the direction along the rotation shaft 32. As long as the suspended portion 42 is not limited to the pipe-shaped member P. For example, the member may be a curved convex surface with a smooth upper side. Further, the lower end side of the base end portion may be shaped so as to be supported by the suspended portion support member 56 by surface contact, and thereby the suspended portion 42 can be easily supported by the suspended portion support member 56. be able to.

  Further, in the present embodiment, the example in which the notch 52v of the fixing jig 52 is sandwiched between the lower neck 48n of the eyebolt 48a and the hoisting machine main body 38 has been described, but not the notch 52v but the through hole 53h (see FIG. 2). For example, the fixing jig 53 may be fixed by using a rectangular fixing jig 53 (see FIGS. 2 and 3) in which the eye bolt 48a is inserted into the through hole 53h and the eye bolt 48a is tightened. In this case, when the fixed jig 52 is attached to the hoisting machine main body 38, a holder or the like may be provided on the hoisting machine main body portion on which the fixing jig 52 is placed so that the attachment portion 54 is always directed to the brake 34 side. Good.

  In FIG. 1, the uppermost part of the hoistway 12 is closed, and the hoisting machine 16 is drawn at the uppermost position of the hoistway 12 via the hoisting machine base 18 on the hoisting machine base 20. However, the uppermost part of the hoistway 12 may be open, and a floor or an installation room for installing the hoisting machine 16 may be provided.

  Since the brake 34 can be attached in the reverse order of the procedure for removing the brake 34, the brake 34 can be easily attached in a short time.

  Moreover, although the attachment part 54 was comprised by the two protrusion parts 54u and 54b and demonstrated the example to which the to-be-attached part 60 was comprised by one protrusion part 60t, the number of protrusion parts is not specifically limited, For example, the attachment portion 54 may be configured by one projection portion, and the attached portion 60 may be configured by two projection portions provided at positions sandwiching the projection portion of the attachment portion 54 from above and below.

  Moreover, the hanging part 42 may limit the rotation range within a predetermined angle range (for example, as shown in FIG. 3, it may be limited within a range of 0 to 90 °). Thereby, it is possible to avoid the suspension part 42 from excessively rotating, and the workability of the rotational movement of the brake 34 can be further improved.

  Although some embodiments have been described above, these embodiments are presented as examples, and the scope of the invention is not intended to be limited to them. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

  DESCRIPTION OF SYMBOLS 10 ... Elevator, 12 ... Hoistway, 14 ... Riding car, 16 ... Hoisting machine, 32 ... Rotating shaft, 34 ... Brake, 40 ... Brake changing device (brake changing device of elevator hoisting machine), 42 ... Hanging part 44 ... Brake suspension mechanism, 46 ... Mounting means, 50 ... Suspension member, 52 ... Fixed jig, 58 ... Moveable jig

Claims (6)

A brake suspending mechanism having a suspending portion that suspends a brake that constitutes an elevator hoisting machine and that can rotate and move horizontally above a car;
Attachment means for detachably attaching the brake suspension mechanism to the hoisting machine;
A suspension member that is suspended by the suspension portion and supports the brake so as to be movable in a direction in which the brake is removed from the rotary shaft of the hoisting machine;
With
The brake suspension mechanism includes a fixed jig attached to the hoist and a movable jig attached to the fixed jig,
The fixed jig has an attachment portion in which a pin insertion hole penetrating in the vertical direction is formed,
The movable jig includes the suspended portion, a suspended portion supporting material to which the suspended portion is fixed, and a mounted portion provided with a pin insertion hole provided in the suspended portion supporting material and penetrating in the vertical direction. And having
Wherein said pin insertion hole and said pin insertion holes are pins inserted into the in the movable jig of the mounting portion of the movable jig of the mounting portion of the fixing jig is mounted so as to be rotatable with respect to the fixing jig A brake changer for an elevator hoisting machine.   The brake changing device for an elevator hoisting machine according to claim 1, wherein the fixing jig is formed with a notch for fixing the fixing jig to the hoisting machine main body with an eyebolt.   A smooth surface on which the suspension member is hung is formed at the upper portion of the suspension portion, and the suspension member can slide in the same direction when the brake is moved in the direction to be pulled out from the rotating shaft. The elevator hoisting machine brake changing device according to claim 1 or 2, wherein the elevator hoisting machine brake changing device is used.   The step of attaching the brake changing device for an elevator hoisting machine according to claim 1 to an elevator hoisting machine, and the suspension member being applied to the suspension part so that the brake can be supported by the suspension member. And a step of moving the brake along the rotating shaft of the hoisting machine to which the brake applies a braking force to remove the brake from the rotating shaft, and rotating the suspension portion to rotate the brake. A brake replacement method for an elevator hoisting machine, comprising: a step of moving to a predetermined position above the car. The step of attaching the brake changing device of the elevator hoisting machine according to claim 2 to the hoisting machine of the elevator, and applying the hoisting member to the hoisting part so that the brake can be supported by the hoisting member. And a step of moving the brake along the rotating shaft of the hoisting machine to which the brake applies a braking force to remove the brake from the rotating shaft, and rotating the suspension portion to rotate the brake. Moving to a predetermined position above the car, and
In the attaching step, when the fixing jig is fixed to the hoisting machine main body with the eyebolt, the eyebolt is loosened in advance, and the notch enters between the neck of the eyebolt and the hoisting machine main body. The fixed jig is moved from the outside of the car so as to approach the eyebolt, and the movement of the fixed jig is restricted by bringing the notch portion into contact with the bolt portion of the eyebolt. A brake replacement method for an elevator hoisting machine, wherein the fixing jig is fixed by rotating in a tightening direction and clamping the notch portion between the neck and the hoisting machine main body.   A smooth surface on which the suspension member is hung is formed on the upper portion of the suspension portion, and in the step of removing the brake from the rotating shaft, the suspension member is moved in the same direction as the movement direction of the brake. The brake replacement method for an elevator hoisting machine according to claim 4 or 5, wherein the brake is moved by sliding.

Images