JP7217814B2 - Hoist adjustment device for machine room-less elevator and method of installing hoist - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hoisting machine adjusting device for a machine room-less elevator and a hoisting machine installation method.

In a conventional elevator, a hoist unit is installed on a machine base via a plurality of supporting elastic bodies. Each supporting elastic body is fixed to the machine base with bolts and nuts (see, for example, Patent Document 1).

WO2016/030943

In the conventional elevator as described above, it is necessary to adjust the attitude of the hoisting machine unit by adjusting the amount of tightening of each nut in the narrow hoistway, and the adjustment work is complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a hoist adjustment device and a hoist installation method for a machine room-less elevator that can easily adjust the attitude of the hoist. with the aim of obtaining

A hoisting machine adjusting device for a machine room-less elevator according to the present invention includes: a fixed body fixed to a hoisting machine installed on a machine base via a cushioning member, projecting upward from the hoisting machine; provided in the hoistway to adjust the angle of the hoisting machine with respect to the horizontal plane by adjusting the position of the fixed body with respect to the beam installed above the hoisting machine , and the fixed body is It has a first fixing member fixed to the hoisting machine and a second fixing member fixed to the hoisting machine, and the first fixing member and the second fixing member are fixed to the hoisting machine. By being fixed, the beam is sandwiched .
A method of installing a hoist for a machine room-less elevator according to the present invention includes installing a hoist on a machine table via a cushioning member, and fixing a fixed body protruding upward from the hoist to the hoist. The angle of the hoisting machine with respect to the horizontal plane is adjusted by operating the angle adjusting body provided on the fixed body and adjusting the position of the fixed body with respect to the beam installed above the hoisting machine in the hoistway. and a step of tightening a fastener that fastens the cushioning member to the machine base. The first fixing member and the second fixing member sandwich the beam by being fixed to the hoist.

ADVANTAGE OF THE INVENTION According to this invention, the attitude|position of a winding machine can be adjusted easily.

1 is a front view showing a main part of a machine room-less elevator according to Embodiment 1; FIG. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1; FIG. 3 is a cross-sectional view showing the front cushioning member of FIG. 2; FIG. 3 is a cross-sectional view showing the rear cushioning member of FIG. 2; 3 is a plan view showing the relationship between the hoist of FIG. 2, a front cushioning member, and a pair of rear cushioning members; FIG. FIG. 2 is a front view showing a state in the middle of installation of the machine room-less elevator of FIG. 1; FIG. 7 is a cross-sectional view along line VII-VII of FIG. 6; FIG. 7 is a front view showing a state in which the hoist is temporarily fixed on the machine table shown in FIG. 6 ; FIG. 9 is a plan view showing the machine table and the hoist of FIG. 8; FIG. 3 is a diagram showing how a first fixing member and a second fixing member are attached to the hoist of FIG. 2 ;

Embodiments will be described below with reference to the drawings.
Embodiment 1.
FIG. 1 is a front view showing a main part of the machine room-less elevator according to Embodiment 1, and is a view of the inside of the hoistway from the landing side. 2 is a cross-sectional view along line II-II of FIG. In the figure, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1 . 1 and 2, only one of the pair of car guide rails 2 is shown.

A pair of car guide rails 2 guides the elevation of the car (not shown). A pair of counterweight guide rails 3 guides the elevation of the counterweight (not shown).

A machine base 4 is horizontally supported on the upper end surfaces of the pair of counterweight guide rails 3 . The machine base 4 is fixed to one of the pair of car guide rails 2 and the pair of counterweight guide rails 3 .

A hoist 5 is installed on the machine base 4 . The hoist 5 is arranged at the top of the hoistway 1 .

The hoisting machine 5 also has a hoisting machine main body 6 and a drive sheave 7 . The hoist main body 6 has a motor (not shown) and a brake (not shown). The motor rotates the drive sheave 7 . The brake keeps the drive sheave 7 stationary. The brake also brakes the rotation of the drive sheave 7 .

A suspension (not shown) is wound around the drive sheave 7 . A plurality of ropes or a plurality of belts are used as suspensions. The car and counterweight are suspended within the hoistway 1 by suspensions. Further, the car and the counterweight move up and down in the hoistway 1 by rotating the drive sheave 7 .

In this example, a thin type hoist is used as the hoist 5 . A low-profile hoist is a hoist whose axial dimension is smaller than its dimension perpendicular to the axial direction. The axial direction is the direction along the axis of the rotation shaft of the drive sheave 7, which is the left-right direction in FIG.

Between the hoisting machine 5 and the machine base 4, a plurality of cushioning members are interposed as vibration isolating members. That is, the hoisting machine 5 is installed on the machine base 4 via a plurality of cushioning members. The multiple cushioning members include a front cushioning member 8 and a pair of rear cushioning members 9 .

Rubber is used as the material of the front cushioning member 8 and the material of the pair of rear cushioning members 9 .

A lifting beam 14 is installed horizontally at the top of the hoistway 1 . The lifting beam 14 is a beam installed above the hoisting machine 5 in the hoistway 1 . Also, the lifting beam 14 is fixed to the building. H-shaped steel is used as the lifting beam 14 .

A hoist adjusting device 50 is provided between the hoist 5 and the lifting beam 14 . A hoisting machine adjustment device 50 includes a fixed body 10, a first bracket 15, a second bracket 16, a first jack bolt 17 as an angle adjuster, a first backing plate 18, and a second bracket as an angle adjuster. , and a second backing plate 20 .

The fixed body 10 is fixed to the hoisting machine 5 and protrudes upward from the hoisting machine 5 . The fixed body 10 also has a first fixing member 11 , a second fixing member 12 , and a plate-like connecting member 13 .

The first fixing member 11 has a flat plate-like first fixing portion 11a and a flat plate-like first projecting portion 11b. The first fixing portion 11a is fixed to the upper surface of the hoist main body 6 by, for example, bolting.

The first protruding portion 11b protrudes upward at right angles from the first fixing portion 11a. A first notch portion 11c is provided in the first projecting portion 11b. A lower flange of the lifting beam 14 is inserted into the first notch portion 11c.

The second fixing member 12 has a flat plate-like second fixing portion 12a and a flat plate-like second projecting portion 12b. The second fixing portion 12a is fixed to the upper surface of the hoist main body 6 by, for example, bolting.

The second protruding portion 12b protrudes upward at right angles from the second fixing portion 12a. A second notch 12c is provided in the second projecting portion 12b. A lower flange of the lifting beam 14 is inserted into the second notch 12c.

The first projecting portion 11b and the second projecting portion 12b are arranged at the center of the hoist body 6 in the thickness direction. The thickness direction of the hoist main body 6 is the direction along the axis of the rotation shaft of the drive sheave 7, which is the left-right direction in FIG.

The first fixing member 11 and the second fixing member 12 sandwich the lifting beam 14 by being fixed to the hoisting machine 5 .

The connecting member 13 is fixed to the first fixing member 11 and the second fixing member 12 . Thereby, the connecting member 13 connects the first fixing member 11 and the second fixing member 12 .

The first bracket 15 and the second bracket 16 are fixed to the lifting beam 14, for example by welding or bolting. The shape of the first bracket 15 and the shape of the second bracket 16 may be flat or L-shaped.

The first bracket 15 is spaced from the fixed body 10 in the longitudinal direction of the lifting beam 14 . The longitudinal direction of the lifting beam 14 is a direction parallel to the thickness direction of the hoist main body 6 and is the left-right direction in FIG.

The second bracket 16 is spaced apart from the fixed body 10 in the longitudinal direction of the lifting beam 14 . Also, the second bracket 16 is arranged on the side opposite to the first bracket 15 with respect to the fixed body 10 .

The first bracket 15 is located on the same side of the web of the lifting beam 14 as the first protrusion 11b. Thereby, the first bracket 15 faces the first projecting portion 11b.

The second bracket 16 is located on the same side of the web of the lifting beam 14 as the second protrusion 12b. Thereby, the second bracket 16 faces the second projecting portion 12b.

The distance from the first protrusion 11b to the first bracket 15 is the same as the distance from the second protrusion 12b to the second bracket 16. As shown in FIG.

The first jack bolt 17 is screwed into the first protrusion 11b. The tip of the first jack bolt 17 contacts the first bracket 15 via the first backing plate 18 . The first backing plate 18 is fixed to the first bracket 15 by gluing or screwing.

A second jack bolt 19 is screwed into the second protrusion 12b. The tip of the second jack bolt 19 contacts the second bracket 16 via the second backing plate 20 . The second backing plate 20 is fixed to the second bracket 16 by gluing or screwing. Rubber, for example, is used as the material of the first backing plate 18 and the material of the second backing plate 20 .

By adjusting the amount of screwing of the first jack bolt 17 and the amount of screwing of the second jack bolt 19, the position of the fixed body 10 with respect to the lifting beam 14 in the longitudinal direction of the lifting beam 14 is adjusted. Thereby, the posture of the hoisting machine 5, that is, the angle of the hoisting machine 5 with respect to the horizontal plane is adjusted.

FIG. 3 is a sectional view showing the front cushioning member 8 of FIG. 2. As shown in FIG. The front cushioning member 8 includes a first cushioning member main body 21, a first upper plate 22, a first lower plate 23, a plurality of first upper bolts 24, and a plurality of first lower bolts 25. , a plurality of first upper nuts 26 and a plurality of first lower nuts 27, which are fasteners.

The first buffer member main body 21 is sandwiched between the first upper plate 22 and the first lower plate 23 . The shape of the first cushioning member main body 21 is a rectangular parallelepiped. Rubber is used as the material of the first cushioning member main body 21 .

Lower ends of the plurality of first upper bolts 24 are fixed to the first upper plate 22 respectively. A plurality of first upper bolts 24 protrude upward from the first upper plate 22 at a right angle.

The hoist main body 6 has a first mounting portion 6a for mounting the front cushioning member 8 thereon. The plurality of first upper bolts 24 penetrate through the first mounting portion 6a. Each first upper nut 26 is screwed onto the corresponding first upper bolt 24 .

Upper ends of the plurality of first lower bolts 25 are fixed to the first lower plate 23 respectively. A plurality of first lower bolts 25 protrude downward from the first lower plate 23 at right angles.

A plurality of first lower bolts 25 pass through the upper surface of the machine base 4, respectively. Each first lower nut 27 is screwed onto the corresponding first lower bolt 25 .

FIG. 4 is a sectional view showing the rear cushioning member 9 of FIG. Each rear cushioning member 9 includes a second cushioning member body 28, a second upper plate 29, a second lower plate 30, a second upper bolt 31, a second lower bolt 32, and a fastener. a second upper nut 33 and a second lower nut 34 .

The second cushioning member main body 28 is sandwiched between the second upper plate 29 and the second lower plate 30 . The shape of the second cushioning member main body 28 is cylindrical. Rubber is used as the material of the second cushioning member main body 28 .

A lower end of the second upper bolt 31 is fixed to the second upper plate 29 . The second upper bolt 31 protrudes upward from the second upper plate 29 at a right angle.

The hoist main body 6 has a second mounting portion 6b for mounting the pair of rear cushioning members 9 thereon. The second upper bolt 31 passes through the second mounting portion 6b. A second upper nut 33 is screwed onto the second upper bolt 31 .

The upper end of the second lower bolt 32 is fixed to the second lower plate 30 . The second lower bolt 32 protrudes downward from the second lower plate 30 at a right angle.

The second lower bolt 32 penetrates the upper surface of the machine base 4 . A second lower nut 34 is screwed onto the second lower bolt 32 .

FIG. 5 is a plan view showing the relationship between the hoisting machine 5 of FIG. In the hoist body 6, the surface on which the drive sheave 7 is arranged is the front surface, and the surface opposite to the front surface is the rear surface. Moreover, when viewing the hoisting machine 5 from directly above, a pair of surfaces connecting the front surface and the rear surface are defined as side surfaces.

The front cushioning member 8 is arranged adjacent to the front surface of the hoisting machine body 6 and at the center in the width direction of the hoisting machine body 6 when the hoisting machine 5 is viewed from directly above. The width direction of the hoist main body 6 is perpendicular to the axis of the rotation shaft of the drive sheave 7 when the hoist 5 is viewed from directly above.

The pair of rear cushioning members 9 are arranged at a pair of corners formed by the rear surface and the pair of side surfaces when the hoisting machine 5 is viewed from directly above.

Next, a method for installing the hoist 5 will be described. When installing the machine room-less elevator, a lifting beam 14 is installed at the top of the hoistway 1 . A lifting device (not shown) is installed on the lifting beam 14 . A lifting device is a device that lifts equipment. From this state, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are lifted and installed in the hoistway 1 .

Thereafter, as shown in FIGS. 6 and 7, the machine base 4 is lifted and fixed on the pair of counterweight guide rails 3 and fixed to one of the car guide rails 2 . At this time, the machine base 4 is adjusted to be horizontal. A front cushioning member 8 and a pair of rear cushioning members 9 are attached in advance to the machine base 4 before lifting.

Subsequently, as shown in FIG. 8 , the hoisting machine 5 is lifted and temporarily fixed on the front cushioning member 8 and the pair of rear cushioning members 9 . At this point, the entire load of the hoist 5 is supported by the front cushioning member 8 and the pair of rear cushioning members 9 . 9 is a plan view showing the machine base 4 and the hoist 5 of FIG. 8. FIG.

The first bracket 15 and the second bracket 16 are then secured to the lifting beam 14 . A first backing plate 18 is fixed in advance to the first bracket 15 . A second backing plate 20 is fixed in advance to the second bracket 16 .

After that, as shown in FIG. 10 , the lifting beam 14 is sandwiched between the first fixing member 11 and the second fixing member 12 . Then, the first fixing member 11 and the second fixing member 12 are fixed on the hoist main body 6 .

Subsequently, the connecting member 13 connects the first fixing member 11 and the second fixing member 12 . A first jack bolt 17 is passed through the first fixing member 11 , and the tip of the first jack bolt 17 is brought into contact with the first backing plate 18 . A second jack bolt 19 is passed through the second fixing member 12 , and the tip of the second jack bolt 19 is brought into contact with the second backing plate 20 .

After that, the screwing amount of the first jack bolt 17 and the screwing amount of the second jack bolt 19 are adjusted, and the tilt of the hoisting machine 5 in the front-rear direction is adjusted. In this state, part of the load that causes the hoist 5 to tilt in the front-rear direction is supported by the hoist adjustment device 50 .

Finally, each first upper nut 26 and each second upper nut 33 are tightened to permanently fix the hoisting machine 5 on the machine base 4 .

Thus, the installation method of the hoist 5 of Embodiment 1 includes the first, second, and third steps. The first step is to install the hoisting machine 5 on the machine base 4 via the front cushioning member 8 and the pair of rear cushioning members 9 and to fix the fixed body 10 to the hoisting machine 5 .

The second step is to adjust the angle of the hoist 5 with respect to the horizontal plane by operating the first jack bolt 17 and the second jack bolt 19 to adjust the position of the fixed body 10 with respect to the lifting beam 14. It is a process.

The third step is to tighten each first upper nut 26 and each second upper nut 33 .

In such a method for installing the hoisting machine adjusting device 50 and the hoisting machine 5, the angle of the hoisting machine 5 with respect to the horizontal plane is adjusted by operating the first jack bolt 17 and the second jack bolt 19. . Therefore, the posture of the hoisting machine 5 can be easily adjusted.

Moreover, after adjusting the posture of the hoisting machine 5, the first upper nuts 26 and the second upper nuts 33 can be simply tightened, which facilitates the installation work of the hoisting machine 5. FIG. That is, it is not necessary to adjust the posture of the hoisting machine 5 by adjusting the amount of tightening of each first upper nut 26 and each second upper nut 33 .

In addition, since the fixed body 10 is divided into the first fixed member 11 and the second fixed member 12, fixing the fixed body 10 to the hoisting machine 5 is easy.

Further, since the lifting beam 14 is sandwiched between the first fixing member 11 and the second fixing member 12, the fixed bodies 10 can be arranged on both sides of the lifting beam 14 with good balance.

Further, since the first fixing member 11 and the second fixing member 12 are connected by the connecting member 13, the entire fixed body 10 can be moved integrally with respect to the lifting beam 14. FIG.

Moreover, since the first jack bolt 17 and the second jack bolt 19 are used as the angle adjusters, the attitude of the hoisting machine 5 can be adjusted with a simple configuration.

Note that the beam installed above the hoist may be a beam other than the lifting beam.

Further, the hoisting machine adjusting device may be removed after the hoisting machine is installed, or may not be removed if it does not interfere.

Also, the fixed body may not be divided into the first fixed member and the second fixed member.

Also, the angle adjuster is not limited to a jack bolt.

Further, if the angle of the hoist can be adjusted in the longitudinal direction of the hoist, the number of the angle adjusters may be one.

1 hoistway 4 machine table 5 hoisting machine 8 front cushioning member 9 rear cushioning member 10 fixed body 11 first fixed member 12 second fixed member 13 connecting member 14 lifting beam 17 first jack bolt (angle adjuster), 19 second jack bolt (angle adjuster), 26 first upper nut (fastener), 33 second upper nut (fastener), 50 hoist regulator.

Claims (4)

A fixed body that is fixed to a hoist installed on a machine bed via a cushioning member and protrudes upward from the hoist, and a fixed body that is provided on the fixed body and is above the hoist in the hoistway An angle adjusting body that adjusts the angle of the hoist with respect to the horizontal plane by adjusting the position of the fixed body with respect to the beam installed in the
The fixed body has a first fixed member fixed to the hoist and a second fixed member fixed to the hoist,
The hoist adjustment device for a machine room-less elevator , wherein the first fixing member and the second fixing member sandwich the beam by being fixed to the hoist. The fixed body further comprises a connecting member fixed to the first fixing member and the second fixing member and connecting the first fixing member and the second fixing member. 2. A hoist adjusting device for a machine room-less elevator according to 1 above. The hoist adjusting device for a machine room-less elevator according to any one of claims 1 to 2 , wherein the angle adjuster is a jack bolt. A step of installing a hoisting machine on a machine table via a buffer member, and fixing a fixed body protruding upward from the hoisting machine to the hoisting machine;
By operating an angle adjuster provided on the fixed body to adjust the position of the fixed body with respect to the beam installed above the hoisting machine in the hoistway, the hoisting machine is positioned relative to the horizontal plane. adjusting an angle; and tightening a fastener that fastens the cushioning member to the machine base ;
The fixed body has a first fixed member fixed to the hoist and a second fixed member fixed to the hoist,
A hoist installation method for a machine room-less elevator in which the first fixing member and the second fixing member are fixed to the hoist machine to sandwich the beam .

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