JP2012201497A - Machine bed and lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine bed and a lifting device which install a hoisting machine of an elevator without a machine room by a simple stricture and reduce man-hours required for work.SOLUTION: The lifting device has an outside frame which is composed of an upper beam 15, a stand frame 16, and a lower beam 17 having a hinge 26, a guide rail guide device 25 which is provided on the outside frame for guidance on a guide rail 8, and a rotation mechanism which is provided in an upper portion of the upper beam 15 and attaches the machine bed 9 supporting the hoisting machine 2. The machine bed 9 supporting the hoisting machine 2 is attached to the rotation mechanism in the vertical direction and the outside frame is lifted, and the hoisting machine 2 and the machine bed 9 are lifted to a specified height. Then, the rotation mechanism is rotated to install the hoisting machine 2 and machine bed 9 at a normal installation position.

Description

  Embodiments of the present invention relate to a machine bed that is easily installed in a machine room-less elevator and a lifting device that can easily lift and install the machine bed.

  In the machine room-less elevator, the hoisting machine is installed in the pit, in the middle and lower stages of the hoistway, and near the top of the hoistway. There was a problem that the clearance between the hoistway top and the hoistway was narrow and the lifting allowance when lifting the hoisting machine could not be secured.

  Therefore, conventionally, before lifting the hoisting machine, after installing the machine bed that supports the hoisting machine first, using a special lifting device that lifts the hoisting machine using the machine bed The hoist was installed.

  If the hoisting machine is installed between the guide rails, there is a method of lifting the hoisting machine along the guide rails. However, if the hoisting machine is not installed between the guide rails, After lifting to the top of the road, there is a problem that it is necessary to move the hoisting machine in parallel or the lifting device becomes large.

Japanese Patent No. 4300799

  An embodiment of the present invention aims to provide a machine bed and a lifting device that can perform the installation of a hoisting machine in a machine room-less elevator with a simple configuration and can reduce the work man-hours. .

  In order to achieve the above object, a machine bed according to an embodiment of the present invention is L-shaped, and a counterweight hitch for suspending a counterweight is provided in one longitudinal direction of the machine bed. In the other longitudinal direction, a hoisting machine support part for supporting the hoisting machine is provided, and the side of the machine bed on which the counterweight hitch is provided is attached to the lifting device. And

  The lifting device according to the embodiment of the present invention includes an outer frame composed of an upper beam, an upright frame, and a lower beam having a suspension base, and an elevating / lowering in a hoistway of a car or counterweight provided on the outer frame. A guide rail guide device for guiding a pair of guide rails and a rotation mechanism portion that is provided on the upper beam and attaches a machine bed that supports the hoisting machine. The machine bed supporting the hoisting machine is attached in the vertical direction and the outer frame is lifted, and after the hoisting and the machine bed are lifted to a predetermined height, the turning mechanism unit is turned to The hoisting machine and the machine bed are in a regular installation position.

It is a block diagram which shows simply the whole structure of a general elevator. It is hoistway sectional drawing which shows the installation location of the winding machine which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the winding machine support part which concerns on the 1st Embodiment of this invention. It is a block diagram which shows attachment of the winding machine which concerns on the 1st Embodiment of this invention, and a winding machine support part. It is a block diagram which shows the structure of the lifting apparatus which concerns on the 1st Embodiment of this invention. It is a lineblock diagram showing the stopper concerning a 1st embodiment of the present invention. It is a schematic diagram which shows attachment of the lifting apparatus and hoisting machine support part which concern on the 1st Embodiment of this invention. It is a schematic diagram which shows the lifting of the winding machine by the lifting apparatus which concerns on the 1st Embodiment of this invention. It is a schematic diagram which shows the installation operation | movement of the winding machine which concerns on the 1st Embodiment of this invention, and a winding machine support part. It is a schematic diagram which shows installation of the winding machine which concerns on the 1st Embodiment of this invention, and a winding machine support part. It is a block diagram which shows the structure of the lifting apparatus which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the lifting apparatus which concerns on the 3rd Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram simply showing an overall configuration of a general machine room-less elevator. As shown in FIG. 1, a hoisting machine 2 is installed at the top of the hoistway 1, and a main sheave 3 is attached to the hoisting machine 2. A main rope 4 is wound around the main sheave 3, and a car 5 and a counterweight 6 are suspended through the main rope 4. At this time, the main rope 4 is guided by the deflecting sheave 7 so that the car 5 and the counterweight 6 do not collide with each other when the car 5 and the counterweight 6 are moved up and down.

  FIG. 2 is a cross-sectional view seen from above the hoistway 1 showing the installation location of the hoisting machine 2 according to the present embodiment.

  In this embodiment, it shall show in FIG. 2 as an installation location of the winding machine 2 and the guide rails 8a-8d. That is, the guide rails 8a and 8b are guide rails installed on the counterweight side, and the guide rails 8c and 8d are guide rails installed on the car side. The guide weights 8a and 8b on the counterweight side are installed lower than the guide rails 8c and 8d, and the hoisting machine 2 is substantially parallel to the hoistway wall on the guide rails 8a and 8d side. It is a position and is installed above the guide rail 8a height.

  FIG. 3 is a view showing a structure of a hoisting machine support section (hereinafter referred to as a machine bed) 9 according to the present embodiment. FIG. 4 is a configuration diagram showing attachment of the hoisting machine 2 and the machine bed 9 according to the present embodiment.

  As shown in FIG. 3, the machine bed 9 according to the present embodiment is configured in an L shape by two beams 10a and 10b. Briefly describing the configuration of the beams 10a and 10b, two U-shaped steel members each having a side surface and a center surface are arranged in parallel. In this embodiment, as shown in FIGS. 3 and 4, the beam 10 a is arranged with the concave portions formed by the side surfaces and the center surface of two U-shaped steel materials facing each other, and the beam 10 b is formed of two U-shaped steel materials. The center planes are placed facing each other.

  In addition, although the connection portion between the beam 10a and the beam 10b is not described in detail, the connection can be made by various connection methods such as a connection by welding or a method of bolting using a reinforcing member.

  Also, a hoisting machine mounting plate 11 for fixing the hoisting machine 2 is attached to the beam 10a, and a hitch plate 12 for fixing a rope weight on the counterweight side is attached to the beam 10b. The hitch plate 12 is provided with a plurality of through holes 12 a for fixing through the main rope 4. In the present embodiment, two plates 11a and 11b are used as the hoisting machine mounting plate 11, but it may be a single plate. The hoisting machine mounting plate 11 is provided with bolt holes (not shown) used when the hoisting machine 2 is fixed.

  Further, a connecting plate 13 for connecting to a lifting device to be described later is attached to the lower part of the beam 10b. The connecting plate 13 will be specifically described in the description of the lifting device.

  As shown in FIG. 4, the hoisting machine 2 is fixed by the hoisting machine mounting plates 11 a and 11 b and is mounted on the machine bed 9. Although the fixing method is not particularly limited, fixing with a bolt using a bolt hole (not shown) provided in the hoist mounting plate 11 as described above can be considered.

  FIG. 5 is a configuration diagram showing the configuration of the lifting device 14 according to this embodiment, and FIG. 6 is a configuration diagram showing the configuration of the stopper according to this embodiment.

  The lifting device 14 includes an upper beam 15, two standing frames 16a and 16b, a lower beam 17, a weight support beam 18, a balance weight 19, a rotating portion 20, a rotating shaft 21, a bearing 22, and rotating portion support brackets 23a and 23b. , A beam connecting plate 24 (machine bed mounting portion), guide rail guide devices 25a to 25d, and a suspension base 26.

  In the lifting device 14, an upper frame 15, a standing frame 16, and a lower beam 17 form a square-shaped outer frame. One surface of each of the L-shaped rotation support brackets 23 a and 23 b is fixed to the upper surface of the upper beam 18, and has a shaft hole for supporting the rotation shaft 21. The shaft hole is provided with a bearing 22, and the rotating portion 20 is also rotated around a rotating shaft 21 supported by the bearing 22.

  Here, as shown in FIG. 6, the rotating unit 20 may be provided with a stopper so that the rotation of the rotating unit 20 is limited to 90 degrees. For example, plate-like stoppers 20a and 20b may be provided on two adjacent surfaces of the rotating unit 20, respectively, so as to contact the side surface of the upper beam 15 each time the rotating unit 20 rotates 90 degrees. Thereby, it becomes possible to restrict | limit rotation of the rotation part 20 and to improve safety | security.

  Returning to FIG. 5, a beam connecting plate 24 for connecting to the connecting plate 13 attached to the machine bed 9 described in FIG. 3 is attached to the rotating unit 20. The lower beam 17 is provided with a suspension base 26 for attaching a hook of a hoist (not shown). The lifting machine is a device that lifts the lifting device 14 to the vicinity of the top of the hoistway. As will be described in detail later, generally, it is attached to the ceiling surface of the hoistway 1, and a lifting device 14 is lifted by hooking a hook 26.

  Further, when lifting the lifting device 14 with the machine bed 9 attached by the connecting plate 13 and the beam connecting plate 24 of the machine bed 9 so as to lift it with the suspension base 26 as a fulcrum, the balance is not lost. Therefore, the guide rail guiding devices 25a to 25d for guiding the lifting device 14 along the guide rail are positioned at the four corners of the outer frame composed of the upper beam 15, the standing frame 16, and the lower beam 17, as shown in FIG. It is attached. In this embodiment, the structure of the guide rail guide apparatus 25 shall be provided so that the lifting apparatus 14 can raise / lower between guide rails. The guide rail guide devices 25a to 25d will be described in detail. As the guide rail guide device 25, a plurality of guide rollers attached so as to sandwich a guide rail not shown in FIG. It is assumed that the vertical frame 16 or the lower beam 17 is provided. In this embodiment, a guide roller is used as the guide rail guide device 25, but a guide shoe or the like may be used as long as the effect as the guide device is obtained.

  The balance weight 19 is for reducing unbalance when the hoisting machine 2 and the machine bed 9 are attached to the lifting device 14, and supports the weight installed horizontally between the standing frames 16a and 16b. It is placed on the beam 18.

  Next, the lifting method of the hoist 2 according to this embodiment will be described with reference to FIG.

  FIG. 7 is a schematic diagram showing attachment of the lifting device 14 and the machine bed 9 according to the first embodiment of the present invention.

  As shown in FIGS. 5 to 7, when the hoisting machine 2 is lifted, the rotating part 20 is rotated in the direction of the car-side guide rails 8 c and 8 d so that the beam connecting plate 24 is vertical. Then, by connecting the vertical beam connecting plate 24 and the connecting plate 13, the lifting device 14, the machine bed 9, and the hoisting machine 2 are integrated, and the machine bed 9 is in the vertical direction as shown in FIG. 7. Attached to. The hoisting machine 2 and the machine bed 9 can be lifted to the vicinity of the top of the hoistway 1 by moving the guide rail guiding device 25 along the guide rail 8.

  Here, the lifting method by the lifting device 14 will be specifically described with reference to FIG.

  FIG. 8 is a schematic diagram showing the lifting of the hoisting machine 2 by the lifting device 14 according to the first embodiment of the present invention.

  As shown in FIG. 8, a hoistway ceiling hook 27 is attached to the top of the hoistway 1, and a lifting machine 28 a is attached to the hoistway ceiling hook 27. Then, a hook (not shown) at the tip of the lifting rope 29 of the lifting machine 28 a is hung on a suspension base 26 provided in the lifting device 14. Thereafter, the hoisting machine 2 and the machine bed 9 are lifted along the guide rail 8 together with the lifting device 14 by pulling the lifting machine 28a.

  FIG. 9 is a schematic diagram showing an installation operation of the hoist 2 according to the first embodiment of the present invention.

  As shown in FIG. 9, after the hoisting machine 2 and the machine bed 9 are lifted, the lifting machine 28b is attached to the lifting machine installation plate 30 attached to the guide rail 8c, and the machine bed 9 is lifted by the lifting machine 28b. The rotating unit 20 attached to the lifting device 14 is rotated 90 degrees. Thereby, the hoisting machine 2 and the machine bed 9 are installed in a regular mounting direction.

  FIG. 10 is a schematic diagram showing installation of the hoist 2 according to the first embodiment of the present invention.

  As shown in FIG. 10, the brackets 31 a to 31 d are attached to the guide rails 8 a to 8 d and fixed to the machine bed 9, thereby completing the installation of the hoisting machine 2 and the machine bed 9. Note that, when the machine bed 9 and the bracket 31 are fixed, the anti-vibration rubber 32 or the like is used as a cushioning material as shown in FIG.

  As described above, according to the present embodiment, even when the hoisting machine 2 is not between the guide rails 8, it is possible to lift the hoisting machine 2 and the machine bed 9 together, thereby reducing the work man-hours. be able to. Furthermore, when the hoist 2 and the machine bed 9 are lifted, they can be lifted up to the vicinity of the top of the hoistway 1 in the vertical direction, that is, in parallel with the guide rail 8, so that the space for lifting can be saved. it can. Further, since the lifting according to the present embodiment is lifted along the guide rail 8, it is a lifting method that also ensures safety.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

  In the second embodiment, the difference from the lifting device 14 according to the first embodiment described above is that a new structure is provided instead of the mounting structure of the beam connecting plate 24 in the lifting device 14 according to the first embodiment. The machine bed 9 and the lifting device 14 are connected using a beam connection plate. Since other configurations are the same as those of the lifting device 14 according to the first embodiment, description thereof is omitted.

  FIG. 11: is a block diagram which shows the structure of the lifting apparatus which concerns on the 2nd Embodiment of this invention.

  As shown in FIG. 11, in the present embodiment, a base 33 is installed on the upper surface of the upper beam 15, and a beam connecting plate 34 is attached to the base 33. The beam connection plate 34 is configured by connecting a surface 34a having a bolt hole for fixing a bolt and a surface 34b fixed to the base 33 by a hinge portion 34c.

  Here, the attachment of the beam connecting plate 34 to the base 33 will be described in detail. The beam connecting plate is provided on the car-side surface of the base 33, that is, on the car-side guide rails 8c and 8d described in the first embodiment. A surface 34b of 34 is attached. At this time, a stopper 35 is provided on the upper surface of the base 33 so that the surface 34a is horizontally fixed at a position slightly separated from the upper surface of the base 33. The reason why the surface 34a is horizontally fixed at a position slightly apart from the upper surface of the base 33 is that a work space is required when the surface 34a and the connecting plate 13 are bolted or removed, so the surface 34a and the base 33 are fixed. 33 so as to have a little space.

  By connecting the connecting plate 13 attached to the machine bed 9 and the surface 34a of the beam connecting plate 34 according to the present embodiment by the configuration as described above, the lifting device 14 is connected. The machine bed 9 can be attached vertically, and the same effect as that of the first embodiment can be obtained.

(Third embodiment)
Next, a third embodiment of the present invention will be described.

  FIG. 12 is a configuration diagram showing the configuration of the lifting device according to the third embodiment of the present invention.

  In the third embodiment, the difference from the lifting device 14 according to the first embodiment described above is that the lower portion than the weight support beam 18 in the lifting device 14 according to the first embodiment is omitted, instead. The counterweight frame 37 is provided on the side. Details of the configuration of the lifting device according to the present embodiment will be described below. Guide rail guide devices 25 are respectively installed at the upper two corners of the lifting device 14 and the four corners of the counterweight frame as shown in FIG. And Since other configurations are the same as those of the lifting device 14 according to the first embodiment, description thereof is omitted. Further, the lifting device in this embodiment is a lifting device 14a in which an outer frame including the upper beam 15, the standing frames 16a and 16b and the weight support beam 18 and the counterweight frame 37 are integrated. Details of the configuration of the lifting device according to this embodiment will be described below. Guide rail guide devices 25 are respectively installed at the upper two corners of the outer frame and the four corners of the counterweight frame as shown in FIG. And This will be described below.

  In the lifting device 14 a according to this embodiment, a counterweight frame mounting base 38 is provided between the outer frame and the counterweight frame 37. The counter weight frame mounting base 38 is fixed by a bracket, bolts or the like (not shown), and the outer frame and the counter weight frame 37 can be removed after the hoisting machine 2 and the machine bed 9 are installed near the top of the hoistway. It is attached to become.

  And the lifting margin at the time of lifting of the lifting apparatus 14a is securable by raising the lower part of the counterweight frame 37 with a lifting machine. Thereby, size reduction of the outer frame part of the lifting apparatus 14a in this embodiment can be achieved. Furthermore, it is possible to install the counterweight at the same time as the hoisting machine 2 and the machine bed 9 are installed by the lifting device 14, and it is possible to reduce the work man-hours as compared with the conventional art.

  In the present embodiment, the guide rail guide device 25 is installed at the upper two corners of the outer frame and the four corners of the counterweight frame as shown in FIG. 12, but the present invention is not limited to this. Any configuration that can raise and lower the hoistway along the guide rail is sufficient, and the guide rail guide device 25 can be appropriately changed to any number and location as in the present embodiment.

DESCRIPTION OF SYMBOLS 1 ... Hoistway 2 ... Hoisting machine 3 ... Main sheave 4 ... Main rope 5 ... Car 6 ... Counterweight 7 ... Deflection sheave 8 ... Guide rail 9 ... Machine bed 10 ... Beam 11 ... Hoisting machine mounting plate 12 ... Hitch Plate 12a ... Through hole 13 ... Connecting plate 14 ... Lifting device 15 ... Upper beam 16 ... Standing frame 17 ... Lower beam 18 ... Weight support beam 19 ... Balance weight 20 ... Rotating part 20a, 20b ... Stopper 21 ... Rotating shaft 22 ... Bearing 23 ... Rotating part support bracket 24 ... Beam connection plate 25 ... Guide rail guide device 26 ... Suspension base 27 ... Hoistway ceiling hook 28 ... Lifting machine 29 ... Lifting rope 30 ... Lifting machine installation plate 31 ... Bracket 32 ... Prevention Vibration rubber 33 ... Base 34 ... Beam coupling plate 35 ... Stopper 36 ... Counter weight frame 37 ... Counter weight frame mounting base

Claims (5)

An outer frame consisting of an upper beam, a standing frame and a lower beam having a suspension base;
A guide rail guide device that is provided on the outer frame and guides on a pair of guide rails for guiding the raising or lowering of the car or the counterweight in the hoistway;
Provided on the upper beam upper part, provided with a rotation mechanism unit for attaching a machine bed that supports the hoisting machine,
The machine bed on which the hoisting machine is supported is attached to the rotating mechanism unit in the vertical direction to lift the outer frame, and the hoisting machine and the machine bed are lifted to a predetermined height, A lifting device that rotates a moving mechanism unit to place the hoisting machine and the machine bed in a regular installation position.   The lifting device according to claim 1, wherein when lifting the hoisting machine and the machine bed, the lifting source is provided on the lower beam at a position where a lifting allowance capable of lifting to a normal installation position can be secured. apparatus. The rotation mechanism unit is
A machine bed mounting section to which the machine bed is mounted, and a rotating section having a rotating shaft;
A pair of support brackets provided on the upper beam and having bearings for supporting the rotating shaft;
With
The machine bed is mounted on the machine bed mounting portion so as to be in the vertical direction, and after lifting up to the installation position of the machine bed, the rotating portion is rotated 90 degrees to horizontally fix the machine bed. The lifting device according to claim 1. The rotation mechanism unit is
A hinge mechanism comprising two plates and a hinge portion, wherein the machine bed is attached to one of the plates, the other of the front plates is attached to the outer frame, and the machine bed is attached to a plate to which the machine bed is attached 2. The lifting device according to claim 1, wherein the lifting mechanism is vertically mounted, lifted up to a predetermined height of the machine bed, and then the hinge mechanism is rotated 90 degrees to horizontally fix and fix the machine bed. In a machine bed attached to a lifting device for lifting elevator equipment,
The machine bed is L-shaped, and a counterweight hitch for suspending a counterweight is provided in one longitudinal direction of the machine bed, and for supporting a hoisting machine in the other longitudinal direction of the machine bed. A machine bed in which a hoisting machine support is provided, and a side of the machine bed on which the counterweight hitch is provided is attached to the lifting device.

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