JP3152034B2 - Traction sheave type elevator device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traction type elevator device and a hoist in which a main rope is wound around a drive sheave so that a car and a counterweight move up and down in opposite directions.

[0002]

2. Description of the Related Art FIG. 19 is a perspective view conceptually showing a conventional elevator apparatus. In the figure, (1) is the hoistway,
(2) is a hoisting machine provided in a machine room (not shown) installed on the upper end of the hoistway (1), (3) is a baffle provided near the hoisting machine (2), 4) is a car guided by a car guide rail (5) set up on a hoistway (1), and (6) is a car guided by a counterweight guide rail (7) set up on a hoistway (1). The guided counterweight (8) is a main rope wound around the hoisting machine (2) and the deflector wheel (3) and both ends connected to the car (4) and the counterweight (6), respectively.

[0003] The conventional elevator apparatus shown in Fig. 19 is constructed as described above, and when the hoist (2) is energized,
The car (4) and the counterweight (6) move up and down in opposite directions via the main rope (8).

In the elevator apparatus shown in FIG. 19, a machine room of the hoisting machine (2) is required above the upper end of the hoistway (1), and a penthouse or the like is required on the building roof. If there is a problem such as the right to sunshine, measures must be taken. In order to improve such a problem, an elevator device in which a linear motor is incorporated in the counterweight (6) shown in FIG. 20 is provided.

FIG. 20 is a perspective view conceptually showing another conventional elevator apparatus. In the figure, (1) is a hoistway, (9) is a pulley installed at the top of the hoistway (1), and (4) is guided to a car guide rail (5) standing on the hoistway (1). (6) is a counterweight which is guided by a counterweight guide rail (7) erected on the hoistway (1), (8) is wound around the pulley (9) and both ends are Each basket (4) and counterweight (6)
The main rope connected to. (10) is the armature coil of the cylindrical linear motor, (11) is the secondary conductor column of the cylindrical linear motor, and (12) is the secondary conductor of the cylindrical linear motor installed at the top of the hoistway (1). Column (11) upper fixing mechanism,
(13) is a lower fixing mechanism of the secondary conductor column (11) of the cylindrical linear motor installed at the bottom of the hoistway (1).

[0006] The conventional elevator apparatus shown in Fig. 20 is constructed as described above, and the linear motor incorporated in the counterweight (6) is energized to drive the car (4) through the main cable (8). And the counterweight (6) moves up and down in opposite directions.

[0007]

In the elevator device shown in FIG. 20, although a hoisting machine (2) above the hoistway (1) does not require a machine room, a secondary conductor is provided over the entire length of the hoistway (1). It is necessary to lay the column (11) and provide the armature coil (10) of the linear motor on the counterweight (6) on the movable side. Further, there is a problem that it is necessary to supply a linear motor current to a moving cable (not shown) of the elevator or to increase a capacity of a power supply equipment due to a low efficiency of the linear motor, thereby increasing a manufacturing cost. .

The present invention has been made to solve such a problem, and an object of the present invention is to provide a traction sheave type elevator apparatus which does not require a machine room without using a conventional linear motor system.

[0009]

SUMMARY OF THE INVENTION A traction sheave type elevator apparatus according to the present invention comprises a car which moves up and down in a hoistway along a guide rail for a car and a hoist in the hoistway along a guide rail for balancing weights. A suspended weight, first and second main ropes for suspending the car and the balanced weight, a first drive sheave around which the first main rope is wound, and the first drive sheave Drive permanent magnet type
Having a synchronous motor and rotating more than the diameter of the first drive sheave.
And it is a long first gearless hoist outer dimensions of the rolling axis, the second driving sheave which the second main ropes is wound Oyo
Permanent magnet synchronous motor for driving the second drive sheave
Having a rotation axis direction larger than the diameter of the second drive sheave.
A second gearless hoist having a longer outer dimension, wherein the first gearless hoist and the second gearless hoist are arranged between the car and the hoistway wall in the hoistway plan view To
And the first gearless hoist and the second gearless hoist are separated from each other on the same rotation axis.
It is what was arranged .

[0010] Further , the permanent magnet of the first gearless hoist may be used.
Between the rotor of the stone synchronous motor and the second gearless hoist
The rotor of the permanent magnet type synchronous motor is mechanically connected to each other.

The traction sheave type elevator apparatus according to the present invention includes a car that moves up and down in a hoistway along a car guide rail, a balancing weight that moves up and down in the hoistway along a counterweight guide rail, A main rope for suspending the car and the counterweight, a first drive sheave around which the main rope is wound , and driving the first drive sheave
It has a permanent magnet type synchronous motor, and is directly connected to the first drive sheave.
The first gear train whose outer dimension in the rotation axis direction is longer than its diameter.
And a second drive sheave around which the main rope is wound.
And a permanent magnet synchronous mode for driving the second drive sheave.
And the rotation axis direction is larger than the diameter of the second drive sheave.
A second gearless hoist whose outer dimensions are longer ,
The first gearless hoist in the hoistway;
Placed between the car aisle and the ceiling of the hoistway,
2 gearless hoisting machine in the hoistway
It is arranged between the weight passage and the ceiling of the hoistway .

[0012] Further , the first gearless hoist and the second gearless hoist are operated synchronously.

The traction sheave type elevator apparatus according to the present invention includes a car which moves up and down the hoistway along the car guide rail, and a counterweight which moves up and down the hoistway along the counterweight guide rail. A first and a second hoist provided in the hoistway;
And a traction sheave type elevator apparatus that raises and lowers the car and the counterweight by a second hoist, wherein the first hoist and the second hoist include:
The first hoist and the above-mentioned
Two inverters for driving and controlling the second hoist;
Connected to the two inverters to convert AC voltage to DC
And convert this DC voltage to the above two inverters.
And a converter that supplies the power at times.

The traction sheave type elevator apparatus according to the present invention includes a car which moves up and down the hoistway along a car guide rail, and a counterweight which moves up and down the hoistway along a counterweight guide rail. A first and a second hoist provided in the hoistway;
And by the second hoisting machine A traction sheave elevator apparatus for raising and lowering said car and said fishing case weight, have a common torque calculating means to said first and second hoisting machine, the By common torque calculation means
The first and second hoisting machines are simultaneously driven and controlled .

The traction sheave type elevator apparatus according to the present invention includes a car that moves up and down the hoistway along a car guide rail, and a counterweight that moves up and down the hoistway along a counterweight guide rail. A first and a second hoist provided in the hoistway;
And a traction sheave type elevator apparatus that raises and lowers the car and the counterweight by a second hoist, wherein the first hoist and the second hoist each have a motor. And, while connecting the armature windings of the motor in series, and connected to the armature windings,
The first hoist and the second hoist are simultaneously driven.
This is provided with an inverter to be controlled .

[0016]

The traction sheave type elevator apparatus constructed as described above has a first drive sheave around which a first main rope is wound and a permanent magnet type sheave for driving the first drive sheave.
With a synchronous motor, the rotation axis of which is larger than the diameter of the first drive sheave
A first gearless hoist having a longer outer dimension in the direction, a second drive sheave around which a second main rope is wound, and a second
Having a permanent magnet synchronous motor for driving the
The outer dimension in the rotation axis direction is larger than the diameter of the drive sheave 2
A long second gearless hoist, wherein the first gearless hoist and the second gearless hoist are arranged in a hoistway plan view.
Place it between the car and the hoistway wall, and
The same rotation of the gearless hoist and the second gearless hoist
The first and second are arranged on the axis and separated from each other .
The gearless hoist raises and lowers the car and the counterweight via the first and second main ropes .

Further , a permanent magnet type of the first gearless hoisting machine is provided.
Permanent synchronous motor rotor and the second gearless hoist
The rotor of the magnet type synchronous motor is mechanically connected to each other for operation.

[0018] The traction sheave elevator device in the present invention, the first drive sheave main rope is wound your
And a permanent magnet synchronous motor for driving the first drive sheave.
And the outer diameter of the first drive sheave in the direction of the rotation axis is smaller than the diameter of the first drive sheave.
The first gearless hoist with longer shape and main rope
The second drive sheave and the second drive sheave
Having a permanent magnet synchronous motor that moves and a second drive sheave
A second gearless hoist having a longer outer dimension in the rotation axis direction than a diameter , wherein the first gearless hoist is located in the hoistway.
Between the car aisle and the hoistway ceiling at
Of the gearless hoist of No. 2 in the hoistway
The first and second gearless hoists are arranged between the passage and the ceiling of the hoistway, and the car and the counterweight are raised and lowered through the main rope .

[0019] In addition, the first gearless hoisting machine and a second gear
Synchronous operation with the less hoist.

The traction sheave type elevator apparatus according to the present invention includes a first hoist and a second hoist.
A first hoist and a second hoist provided correspondingly,
And two inverters for driving and controlling the machine, the two-in
Connected to the inverter, converts AC voltage to DC voltage
And supply this DC voltage to the two inverters at the same time.
And a converter provided from the converter.
The first and second hoists are simultaneously driven by the DC voltage .

The traction sheave type elevator apparatus according to the present invention is common to the first and second hoisting machines.
It has a torque calculating means for simultaneously driving controls of the first and second hoisting machine by the common torque calculation means.

The traction sheave elevator apparatus of this invention includes a first hoisting machine and the second hoisting machine it
Each motor has a motor, and armature windings of the motor are connected in series, and an inverter is connected to the armature winding.
The first and second hoists are simultaneously driven and controlled by this inverter .

[0023]

[Embodiment 1] 1 to 3 show an embodiment of the present invention. FIG. 1 is a conceptual perspective view, FIG. 2 is a conceptual side view of FIG. 1, and FIG.
3 is a conceptual plan view of FIG. In the figure, (1) is the hoistway, (4)
Is a car guided on both sides by a car guide rail (5) erected on the hoistway (1), and (6) is a car with a counterweight guide rail (7) erected on the hoistway (1). A counterweight (14) is provided on the counterweight (6) and guides the counterweight guide rail (7) when necessary. (1
5) is a hoist comprising an outer rotor motor provided at the top of the hoistway (1), the axis of which is arranged in the direction connecting the counterweight guide rails (7) on both sides, and It comprises a shaft (17) whose both ends are supported by a fixed body (16) at the top and a drive sheave (18) composed of an outer rotor. This outer rotor motor has a structure suitable for enabling downsizing, thinning, and simplification of the structure. Even when a hoist is installed in a hoistway, the space required for the hoistway is reduced. It is effective in that it can be done.

(8) is a main rope, an intermediate portion of which is wound around a drive sheave (18) of a hoisting machine (15) and one end of which is a counterweight (6) of a car (4).
The other end is connected to the counterweight (6). (19) is a car buffer provided on the bottom of the hoistway (1), (20) is a buffer for the counterweight provided on the bottom of the hoistway (1), and (21) is a car on the hoistway (1). It is a landing of elevators provided apart from each other in the vertical direction.

In the elevator device constructed as described above, when the hoisting machine (15) is energized, the car (4) and the counterweight (6) are opposed to each other via the main cable (8). Go up and down in the direction. A braking device (14) is provided on the counterweight (6) to reduce the outer shape of the hoisting machine (15), and the cage is operated by pressing the guide rail (7) for the counterweight when necessary. (4) and the lifting and lowering of the counterweight (6) are braked.
Also, as shown in FIG. 2, the hoisting machine is located at a position lower than the upper surface of the car (4) when the car (4) stops at the uppermost landing (21).
(15) is set up. Thereby, the gap L between the upper surface of the car (4) and the ceiling of the hoistway (1) when the car (4) stops at the uppermost landing (21) can be minimized.

This eliminates the need for the machine room of the hoisting machine above the upper end of the hoistway (1), and can reduce the required space above the hoistway (1). Therefore, it is possible to reduce the height of the building and solve the problem of the right to sunshine and the like. Also, since the hoisting machine (15) is composed of an outer rotor motor, a secondary conductor column is laid on the entire length of the hoistway (1), or the power supply equipment capacity is increased due to the low efficiency of the linear motor. It is possible to avoid an increase in the manufacturing cost due to such factors. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

Embodiment 2 FIG. FIG. 4 is a conceptual perspective view showing another embodiment of the present invention. In the figure, (1) is a hoistway, (4) is a car guided on both sides by a car guide rail (5) erected on the hoistway (1),
(6) is the guide rail for the counterweight installed on the hoistway (1)
(7) is a counterweight that is guided on both sides, (14) is a counterweight that is provided on the counterweight (6) and is used when necessary.
This is a braking device that clamps (7). Reference numeral (15) denotes a hoist comprising an outer rotor motor provided at the top of the hoistway (1) .The hoisting machine (1) has an axis arranged in a direction connecting the counterweight guide rails (7) on both sides. ) Is constituted by two drive sheaves (181) each composed of a shaft (17) whose both ends are supported by a fixed body (16) at the top and outer rotors provided on the shaft (17) apart from each other.

(9) is a pulley provided at the top of the hoistway (1) and corresponds to each of the two drive sheaves (181), and is disposed at a position immediately above the car (4). Two sets of main ropes corresponding to the sheaves (181), respectively.
5) It is wound around the drive sheave (181) and is wound around the pulley (9),
It is again wrapped around the drive sheave (181) and the pulley (9), that is, it is double-wrapped to realize the required traction capacity, one end is connected to the member on the top of the car (4), and the other end is a counterweight ( It is connected to 6).

In the elevator apparatus constructed as described above, the hoisting machine (15) is energized and the outer rotor motors each having the drive sheave (181) are operated synchronously, so that the main rope (8) is driven. The basket (4) and the counterweight (6) move up and down in the opposite directions via. By providing two drive sheaves (181) each composed of an outer rotor, that is, by arranging the outer rotor motor separately in two, the burden torque per outer rotor motor can be reduced to half. it can. As a result, the diameter of the outer rotor motor can be reduced, the space required for installation is reduced, and the car (4) stops at the uppermost landing of the hoistway (1). 1) The gap with the ceiling can be minimized.

This eliminates the need for a machine room for the hoist above the upper end of the hoistway (1), and reduces the required space in the upper part of the hoistway (1). Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. Also, since the hoisting machine (15) is composed of an outer rotor motor, a secondary conductor column is laid on the entire length of the hoistway (1), or the power supply equipment capacity is increased due to the low efficiency of the linear motor. It is possible to avoid an increase in the manufacturing cost due to such factors. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost. In the embodiment of FIG. 4, the hoist (15) is positioned above the car (4), and the pulley (9) is balanced.
It is apparent that the same operation as that of the embodiment of FIG. 4 can be obtained even with the configuration arranged at the upper position of (6).

Embodiment 3 FIG. FIG. 5 is a conceptual perspective view showing another embodiment of the present invention. In the figure, the same reference numerals as those in FIG.
Is a first hoisting machine composed of an outer rotor motor provided at the top of the hoistway (1) and located above the counterweight (6), and has an axis line on both sides of the counterweight guide rail.
(7) and fixed at the top of the hoistway (1).
The drive sheave (18) includes a shaft (17) whose both ends are supported by 6) and an outer rotor provided on the shaft (17). (151) is a car (4) provided at the top of the hoistway (1)
A second hoisting machine arranged above the first hoisting machine (15)
It is configured similarly to.

Reference numeral (8) denotes a main rope, whose intermediate portion is wound around the drive sheave (18) of the first hoisting machine (15) and the drive sheave (18) of the second hoisting machine (151). One end is connected to the member on the upper surface of the car (4), and the other end is connected to the counterweight (6).

The elevator device constructed as described above is driven by the first hoisting machine (15) and the second hoisting machine (151) so as to be operated synchronously, so that the elevator can be moved through the main cable (8). The car (4) and the counterweight (6) move up and down in opposite directions. Then, the main rope (8) is wound around the first hoisting machine (15) and the second hoisting machine (151), and is driven by the drive sheave (18) for a traction capacity of 1/4 turn, that is, a total of 1 / 2 laps of traction capacity is obtained. As described above, the burden torque per unit of the first hoisting machine (15) and the second hoisting machine (151) can be reduced to half. And the diameter of the first hoisting machine (15) and the second hoisting machine (151) can be reduced, and the space required for installation is reduced, so that the car (4) is at the highest landing of the hoistway (1). The gap between the upper surface of the car (4) when stopped and the ceiling of the hoistway (1) can be minimized.

This eliminates the need for a machine room of the hoist above the upper end of the hoistway (1), and reduces the required space in the upper part of the hoistway (1). Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. Also, since the hoisting machine (15) is composed of an outer rotor motor, a secondary conductor column is laid on the entire length of the hoistway (1), or the power supply equipment capacity is increased due to the low efficiency of the linear motor. It is possible to avoid an increase in the manufacturing cost due to such factors. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost. In the embodiment of FIG. 5, when the traction capacity is insufficient due to the diameter of the drive sheave (18), the main rope (8) can easily be fully wrapped or double-wrapped, and the required traction capacity can be obtained. .

Embodiment 4 FIG. FIG. 6 is a conceptual perspective view showing another embodiment of the present invention. The other parts of FIG. 6 are configured similarly to the embodiments of FIGS. In the drawings, the same reference numerals as those in FIGS. 1 to 3 and 4 denote corresponding parts, and (15) is a hoisting machine including an outer rotor motor provided on the top of a hoistway (1), and the axis is on both sides. A shaft arranged in the direction connecting the counterweight guide rails and having both ends supported by a fixed body at the top of the hoistway (1); and an outer rotor provided apart from the shaft on the shaft.
It is constituted by two drive sheaves (181).

(8) corresponds to the driving sheave (181).
The main rope with the set, the middle section is the drive sheave of the hoisting machine (15)
Wrapped around (181), wrapped around pulley (9) and re-driven sheave
(181) and the pulley (9), that is, it is double-wrapped to realize the required traction capacity,
The lower end of the counterweight (6) of (4) is connected to the lower end, and the other end is connected to the counterweight (6).

In the elevator device constructed as described above, the hoisting machine (15) is energized and the outer rotor motors each having the drive sheave (181) are operated synchronously, so that the main cable (8) The basket (4) and the counterweight (6) move up and down in the opposite directions via. In the embodiment of FIG. 6, the hoisting machine (15) is installed at a position lower than the upper surface of the car (4) when the car (4) stops at the uppermost landing. The same operation as that of the embodiment can be obtained. Further, in the embodiment of FIG.
Since two drive sheaves (181) are provided, the same operation as the embodiment of FIG. 4 can be obtained.

With such a configuration, the machine room of the hoisting machine is not required above the upper end of the hoistway, and the required space in the upper part of the hoistway is reduced. Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. In addition, since the hoisting machine (15) is composed of an outer rotor motor, it is necessary to lay a secondary conductor column over the entire length of the hoistway, or to increase the capacity of the power supply equipment for low efficiency of the linear motor. Thus, it is possible to avoid an increase in manufacturing cost due to the above. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost. In the embodiment of FIG. 6, the hoist (1
It is apparent that the same operation as that of the embodiment shown in FIG. 6 can be obtained even with the configuration in which 5) is arranged above the car (4) and the pulley is arranged above the counterweight (6).

Embodiment 5 FIG. 7 to 9 show another embodiment of the present invention.
7 is a longitudinal sectional view of the hoist of the embodiment of FIGS. 1 to 3, 4, 5, and 6, FIG. 8 is a longitudinal orthogonal sectional view of the outer rotor motor portion of FIG. 7, and FIG. It is a longitudinal orthogonal sectional view of an apparatus location. In the figure, reference numeral (15) denotes a hoist comprising an outer rotor motor provided at the top of the hoistway (1).
7), the outer rotor is made of bearings with rope grooves (22)
A drive sheave (18) pivoted on a shaft (17) by (23), a field yoke (24) provided in the drive sheave (18), and a field yoke
Field permanent magnet (25) provided on (24), fixed side provided on shaft (17), that is, armature yoke (26) on stator side, armature winding (27) on stator side And pedestal (28) supporting shaft (17)
It is constituted by. This permanent magnet type synchronous motor is suitable for downsizing the hoist, and is effective in that the space required for the hoistway can be reduced even when the hoist is installed in the hoistway. Further, the motor shown in FIG. 7 is a radial gap type motor, and the electromagnetic force acting between the stator and the rotor is dispersed in the radial direction to become an internal force, so that a strong supporting structure is not required for the movable part. This is effective in that the structure is simplified. Furthermore, since the outer rotor is a radial gap type outer rotor, the permanent magnet is pressed against the rotor by centrifugal force, and there is an effect that the magnet is less likely to come off than the adduction type. Particularly, in a large motor applied to an elevator, a strong attraction force of several tons acts between a gap between a stator and a permanent magnet of a rotor, and thus this structure is particularly effective.

(29) is a braking device provided on the hoisting machine (15), and includes an electromagnet (30), a brake arm (31), and a brake shoe.
(32), a brake shoe (32) formed in the drive sheave (18)
Brake drum (33) and brake shoe (3
2) is constituted by a spring (34) for pressing the brake drum (33). (35) is an absolute value encoder for speed detection, which is disposed on a projecting flange-like portion of the drive sheave (18) via a bearing (36), and is an encoder holding mechanism fixed to the shaft (17).
(37) via a mounting bracket (38).

In the elevator device constructed as described above, the hoisting machine (15) is energized and the car and the counterweight move in the opposite directions to each other via the drive sheave (18) and the main rope (8). Go up and down. When the hoist (15) is energized, the electromagnet (30) is energized and the brake arm (31) is sucked against the pressing force of the spring (34), and is driven by the braking device (29). The sheave (18) is released from braking. When the hoisting machine (15) is deenergized, the electromagnet (30) is deenergized, the suction of the brake arm (31) is released, and the spring (34)
Brake shoe on the brake drum (33) by the pressing force of
(32) is pressed, and the drive sheave (18) is braked by the braking device (29).

In the embodiment shown in FIGS. 7 to 9, the elevator device is constructed similarly to the embodiment shown in FIGS. 1 to 3, 4, 5 and 6, so that the elevator device is located above the upper end of the hoistway. In addition, the machine room of the hoist becomes unnecessary, and the required space in the upper part of the hoistway is reduced. Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. In addition, since the hoisting machine (15) is composed of an outer rotor motor, it is necessary to lay a secondary conductor column over the entire length of the hoistway, or to increase the capacity of the power supply equipment for low efficiency of the linear motor. Thus, it is possible to avoid an increase in manufacturing cost due to the above. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

When the embodiment shown in FIGS. 7 to 9 is applied, the brake provided on the counterweight (6) in the embodiment shown in FIGS. 1 to 3, 4, 5, and 6 is used. The device (14) becomes unnecessary. Further, in the hoisting machine (15) of the embodiment of FIGS.
It is necessary to arrange the absolute value encoder for speed detection (35) at one of the two longitudinal ends and the braking device (29) at the other end for reasons such as convenience in maintenance work of the braking device (29).

Further, in the embodiment shown in FIGS. 7 to 9, an example of a permanent magnet type synchronous motor is shown in order to reduce the size of the outer rotor motor, but an aluminum secondary conductor is used instead of the permanent magnet (25). It can be realized even if it is built into the outer rotor side and is of the induction motor type. In this case, absolute encoder for detecting position, speed and field pole position
(35) is possible with an incremental encoder. In addition, the shaft (17) in FIG. 7 can be extended to directly mount the pedestal (28) on the fixed body (not shown) of the hoistway, and the hoisting machine (15) is supported in the hoistway. Beam (not shown)
Installation can be omitted.

Embodiment 6 FIG. 10 and 11 are views showing another embodiment of the present invention. FIG. 10 is a longitudinal sectional view of the hoisting machine, corresponding to FIG. 7 described above, and FIG. 11 is a left side view of the support member of FIG. FIG. In the drawings, the same reference numerals as those in FIGS. 7 to 9 denote corresponding parts, (16) is a fixed body provided apart from each other on the top of the hoistway, and (17) is an outer rotor constituting the hoisting machine (15). The stator side of the outer rotor motor is fixed to the motor shaft, and an H-shaped through hole is provided. (39) is made of H-shaped steel and the shaft (1
7) A support member that is inserted into the H-shaped through-hole and supported by the fixed body (16) whose both ends face each other.

The elevator apparatus configured as described above has the same structure as the embodiment of FIGS. 7 to 9 and FIGS.
4, 5, and 6, the elevator apparatus is configured, so that the machine room of the hoisting machine is not required above the upper end of the hoistway, and the required space in the upper part of the hoistway is reduced. . Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. Also, the hoist (1
5) is composed of an outer rotor motor, which increases the production cost by laying a secondary conductor column over the entire length of the hoistway, or increasing the capacity of the power supply equipment for low efficiency of the linear motor. Can be avoided. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

In the embodiment shown in FIGS. 10 and 11, the cage (4), the counterweight (6), the main rope (8), the rotor of the outer rotor motor constituting the hoisting machine (15), etc. Weight is the supporting member
Supported by (39). Therefore, the strength of the shaft (17) of the outer rotor motor constituting the hoisting machine (15) can be reduced, and the shaft (17) can be reduced in weight, thereby reducing the manufacturing cost of the hoisting machine (15). can do.

Embodiment 7 FIG. FIG. 12 is a view showing another embodiment of the present invention, and is a longitudinal sectional view of the hoist of the embodiment of FIG. 4 and is a view corresponding to FIG. 7 described above. In the figure, the same reference numerals as those in FIG.
Is a hoist comprising an outer rotor motor provided at the top of the hoistway (1), and is provided with two drive sheaves (181) comprising outer rotors provided apart from each other on a shaft (17). I have. (40) is a joint made of a rigid body that interconnects the two drive sheaves (181). (29) is one drive sheave (18
(35) is the other drive sheave (181)
, An absolute value encoder for detecting the position, speed, and field pole position.

In the elevator apparatus constructed as described above, the hoisting machine (15) is energized and the outer rotor motors each having the drive sheave (181) are connected to each other by the joint (40) to perform the synchronous operation. As a result, the car (4) and the counterweight (6) move up and down in opposite directions via the main cable (8). This eliminates the need for the machine room of the hoist above the upper end of the hoistway, and reduces the required space in the upper part of the hoistway. Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. Also, the hoist (1
5) is composed of an outer rotor motor, which increases the production cost by laying a secondary conductor column over the entire length of the hoistway, or increasing the capacity of the power supply equipment for low efficiency of the linear motor. Can be avoided. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

Further, since two drive sheaves (181) each having an outer rotor provided on the shaft (17) and separated from each other are provided, detailed description is omitted, but the embodiment of FIG. It is clear that the same operation as the embodiment of FIG. 4 and the embodiment of FIG. 6 can be obtained. In the embodiment of FIG. 12, the braking device (2) provided on one drive sheave (181) is provided.
It is also possible to cancel 9) and to provide the braking device (14) on the counterweight (6) as shown in FIG. FIG.
In this embodiment, it is also possible to provide a shaft (17) as shown in the embodiment of FIGS. 10 and 11, and a support member (39) inserted through the shaft (17). In the embodiment of FIG. 12, the outer rotor motors each having the drive sheave (181) may not be connected to each other by the joint (40), and the outer rotor motors may be electrically synchronized with each other.

Embodiment 8 FIG. 13 and 14 show another embodiment of the present invention. FIG. 13 is a control block diagram of an inverter for driving a hoist comprising a synchronous outer rotor motor using a permanent magnet, and FIG. Two hoists comprising a synchronous outer rotor motor using magnets are provided, and these hoists are not mechanically connected to each other. For example, FIG.
FIG. 6 is a control block diagram of an inverter that drives a hoist of the elevator device configured as in the embodiment of FIG. 5 and FIG. It should be noted that an elevator control unit, a position control unit, and the like, which are not directly related to the present invention, are omitted. In the figure, (4
1) is a drive inverter of a hoisting machine (15) composed of an outer rotor motor, (42) is a speed command generator, and (43) is a crossover point for obtaining a speed deviation from the speed command value Vcom and the current speed V *. is there.

(44) is a speed amplifier for processing a speed deviation, and iq is output from the speed amplifier (44) as a torque command. (45) is a speed calculator that calculates the motor rotation speed from the pulse train obtained from the absolute value encoder (35), (46)
Is a dq three-phase AC coordinate converter, and an absolute value encoder (35)
Is multiplied by the magnetic pole position θ of the magnet obtained from the above and sin θ, sin (θ−2 / 3π) calculated by the trigonometric function generator (47) and iq, and the U-phase current command iqu = iq · sin θ V-phase current The command iqv = iq · sin (θ−2 / 3π) is generated.

(48) shows a U-phase current command iqu and a U-phase current iu
And (49) is a joint point for finding a current deviation between the V-phase current command iqv and the V-phase current iv *. (50) is a current amplifier that generates a U-phase voltage command Vul from the current deviation of the U-phase current, and (51) is a current amplifier that generates a V-phase voltage command Vvl from the current deviation of the V-phase current. W-phase voltage command Vwl is expressed as Vwl = − (Vul +
Vvl) at the calculation point (52). (53) is a PWM inverter which converts three-phase voltage commands Vul, Vvl, Vwl into PWM signals.
It converts the signal into an M signal, drives a transistor of the main circuit inverter or an IGBT, and applies a PWM voltage to a hoisting machine (15) including an outer rotor motor.

(54) is a DCCT for detecting a motor current. In the functional block of the drive inverter (41), PW
Except for the M inverter (53) and the DCCT (54), detailed explanations are omitted, but are usually calculated by a microcomputer. (411) is the speed command from the drive inverter (41).
The first functional block excluding (42), (412) is a contact point (48), a contact point (49) in the drive inverter (41),
Current amplifier (50), current amplifier (51), calculation point (52), PWM
This is a second functional block including an inverter (53) and a DCCT (54).

Two hoisting machines (15) each comprising a permanent magnet outer rotor motor operating according to the principle described above are provided, and these hoisting machines (15) are not mechanically connected to each other. The drive inverter for driving the hoisting machine (15) of the elevator apparatus configured as in the embodiment of FIGS. 4 and 5 is usually configured as shown in FIG. That is, (55) is a two-motor drive inverter, (411) is the same first functional block as in FIG. 13, (42) is a speed command,
(35) are absolute value encoders. With such a configuration, control is performed by giving a command from one speed command (42) to the first function block (411) of two motor controls.

Also in the embodiment of FIGS. 13 and 14, since the elevator apparatus is constructed in the same manner as the embodiment of FIGS. 4 and 5, etc., the machine room of the hoisting machine is located above the upper end of the hoistway. Becomes unnecessary, and the required space above the hoistway is reduced. Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. Also, hoisting machine
(15) consists of an outer rotor motor,
It is possible to avoid an increase in manufacturing costs due to, for example, laying a secondary conductor column over the entire length of the hoistway or increasing the capacity of the power supply equipment for low efficiency of the linear motor.
Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

Embodiment 9 FIG. FIGS. 15 and 16 show another embodiment of the present invention. FIG. 15 shows a case where two hoists including a synchronous outer rotor motor using a permanent magnet are provided, and these hoists are mutually connected. 12 is a control block diagram of an inverter for driving a hoist of an elevator apparatus mechanically connected as shown in the embodiment of FIG. 12, and FIG. 16 is a main circuit diagram of the inverter of FIG. In the figure, (56) is a drive inverter of two hoisting machines (15) composed of an outer rotor motor,
(411) is a first functional block as in FIG. 13, (412) is a second functional block as in FIG. 13, (42) is a speed command, (3)
5) are absolute value encoders.

Numeral (413) is a torque calculating means, a matching point (43) for obtaining a speed deviation from the speed command value Vcom and the current speed V *, and a speed amplifier section for processing the speed deviation and outputting iq as a torque command. (44), comprising a speed calculator (45) for calculating a motor rotation speed from a pulse train obtained from an absolute value encoder (35), a dq three-phase AC coordinate converter (46), and a trigonometric function generator (47). ing.

Then, the SM2 hoisting machine (15) shown in FIG.
The motor (15) of SM1 shown in FIG. 15 is such that the motor current of U1 phase current command iq = iq · sin θ V1 phase current command iqv = iq · sin (θ−2 / 3π) The same current control as that described above is performed.
5) The motor current is controlled uniformly. The main circuit of the inverter that drives the motors of the two hoists (15) configured as shown in FIG. 15 will be described with reference to FIG. FIG.
Among them, (57) is a three-phase AC input current, and (58) is a converter for converting an AC voltage into a DC voltage, which is usually constituted by a diode or the like. However, when the control is performed with the input power factor = 1 or the power supply is regenerated, it is configured by a transistor, an IGBT bridge, and the like.

(59) is a capacitor for smoothing the converter voltage, and (60) is an inverter bridge circuit composed of a transistor, an IGBT bridge and the like for driving the SM1 hoist (15) shown in FIG. , (61), like the inverter bridge circuit (60), are inverter bridge circuits composed of transistors, IGBT bridges and the like for driving the SM2 hoisting machine (15) shown in FIG. With such a configuration, the two inverter bridge circuits (60) and (61) are driven by the DC voltage from one converter bridge (58). The main circuit of the inverter that drives the two motors in FIG.
It is also possible to configure as follows.

Also in the embodiment of FIGS. 15 and 16, the elevator apparatus is constructed in the same manner as the embodiment of FIG. 12, so that the machine room of the hoisting machine is not required above the upper end of the hoistway. The required space in the upper part of the hoistway is reduced. Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. In addition, since the hoisting machine (15) is composed of an outer rotor motor, it is necessary to lay a secondary conductor column over the entire length of the hoistway, or to increase the capacity of the power supply equipment for low efficiency of the linear motor. Thus, it is possible to avoid an increase in manufacturing cost due to the above. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

Embodiment 10 FIG. FIG. 17 is a view showing another embodiment of the present invention. As shown in FIG. 12, two hoisting machines are arranged in series, and the drive sheaves are connected to each other by a joint. A control block of an inverter for driving a hoisting machine of an elevator apparatus in which two hoisting machines comprising a synchronous outer rotor motor using magnets are provided, and armature windings of these hoisting machines are connected in series. FIG. In the figure, (62) is a drive inverter of two hoisting machines (15) composed of an outer rotor motor, (411) is a first functional block same as FIG. 13,
(42) is a speed command, and (35) is an absolute value encoder.

In such a configuration, two hoisting machines (15) can be driven by one driving inverter (62) similar to the driving inverter (41) for driving one motor shown in FIG. . In the embodiment of FIG. 17, when a motor using the same winding as that used in FIG. 14 is used, the terminal voltage of the motor is doubled, so that the voltage generated by the inverter is doubled. There is a need.

Also, in the embodiment of FIG. 17, the elevator apparatus is configured in the same manner as the embodiment of FIG.
The machine room of the hoisting machine is not required above the upper end of the hoistway, and the required space in the upper part of the hoistway is reduced.
Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. In addition, since the hoisting machine (15) is composed of an outer rotor motor, it is necessary to lay a secondary conductor column over the entire length of the hoistway, or to increase the capacity of the power supply equipment for low efficiency of the linear motor. Thus, it is possible to avoid an increase in manufacturing cost due to the above. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

Embodiment 11 FIG. FIG. 18 is a view showing another embodiment of the present invention, wherein a main circuit of an inverter for driving a hoist of an elevator apparatus provided with two hoists including a synchronous outer rotor motor using a permanent magnet is provided. FIG. In the figure, (57) is 3
A phase AC input current (58) is a converter for converting an AC voltage into a DC voltage, and is usually constituted by a diode or the like. However, when the control is performed with the input power factor = 1 or the power supply is regenerated, it is configured by a transistor, an IGBT bridge, and the like.

(59) is a capacitor for smoothing the converter voltage, and (60) is an inverter bridge circuit composed of a transistor, an IGBT bridge and the like for driving the SM1 hoist (15) shown in FIG. , (61), like the inverter bridge circuit (60), are inverter bridge circuits composed of transistors, IGBT bridges and the like for driving the SM2 hoisting machine (15) shown in FIG. (63) is a contactor provided between the inverter bridge circuits (60) and (61) and the hoisting machine (15), and (64) is a contactor.
A contactor provided between (63) and the hoisting machine (15), (65) is a resistor connected to the contactor (64), and (66) is a contactor
This is a safety means consisting of a circuit constituted by (63), (64) and a resistor (65).

Also, in the embodiment of FIG. 18, since the elevator apparatus is constructed in the same manner as the embodiments of FIGS. 1 to 3, the machine room of the hoisting machine is unnecessary above the upper end of the hoistway. The required space in the upper part of the hoistway is reduced. Therefore, the height of the building is reduced, and problems such as the right to sunshine can be solved. In addition, since the hoisting machine (15) is composed of an outer rotor motor, it is necessary to lay a secondary conductor column over the entire length of the hoistway, or to increase the capacity of the power supply equipment for low efficiency of the linear motor. Thus, it is possible to avoid an increase in manufacturing cost due to the above. Thus, it is possible to obtain an elevator apparatus that can be easily installed, is highly efficient, and can be manufactured at low cost.

Also, in the case where the elevator apparatus provided with the hoist including the outer rotor motor as in the embodiment of FIGS. 1 to 3 is stopped unexpectedly between floors of a building due to an inverter failure or the like. As with the conventional linear motor driven elevator device, the hoist (1
5) Since the braking device is provided in the hoistway, there is a problem that the operation of the hoisting machine (15) for rescuing passengers in the car cannot be easily performed. That is, when the car is stopped unexpectedly, a rescue operation is generally performed in which the braking device is released from the outside of the hoistway by inching to freely lower the car and stop at the nearest landing.

In an elevator apparatus provided with a hoist comprising an outer rotor motor as in the embodiment shown in FIGS. 1 to 3, not only when the car is stopped unexpectedly as shown in FIG. Sometimes, the power supply line of the three-phase armature of the hoisting machine (15) is opened by the contact of the contactor (63), and at the same time, the contact of the contactor (64) is closed to connect the resistor (65) to the three-phase armature. And short circuit.

When the car is freely lowered by releasing the braking device by inching or the like by such control,
Even if the braking device does not operate due to an unexpected situation, a braking torque proportional to the descending speed acts due to the interaction between the permanent magnet of the rotor and the coil of the three-phase armature via the safety means (66). Therefore, the safety of the elevator device when the malfunction of the braking device occurs can be improved. Normally, the contact of the contactor (63) is closed when the contactor coil is excited, while the contact of the contactor (64) is closed when the coil of the contactor is not excited.

[0071]

The traction sheave type elevator apparatus according to the present invention is a lifting weight that moves up and down the hoistway along the car guide rail, and lifts and lowers the hoistway along the counterweight guide rail. A first and a second main rope for suspending the car and the counterweight; a first drive sheave around which the first main rope is wound;
Has a permanent magnet synchronous motor that drives the first drive sheave
And the outer shape of the first drive sheave in the direction of the rotation axis is larger than the diameter of the first drive sheave.
And long first gearless hoist better dimension, the second main
A second drive sheave around which the rope is wound and the second drive
It has a permanent magnet type synchronous motor for driving the sheave, the second
The outer dimension in the rotation axis direction is longer than the diameter of the drive sheave
There second and a gearless hoisting machine, the first gearless
A hoistway plan view of the hoist and the second gearless hoist
Together when placed between the car and the hoistway walls in
To, the first gearless hoisting machine and the second Giyare
The hoisting machines are arranged on the same axis of rotation and separated from each other.
As a result, the torque per load of the hoist
Together with the smaller
The space between the car and the hoistway wall can be saved. Ma
Also, compared to the case where the geared hoist is installed in the hoistway,
Elevator system with less vibration noise transmitted to living room
Can be obtained.

[0072] In addition, permanent magnetic of the first gearless hoisting machine
Between the rotor of the stone synchronous motor and the second gearless hoist
Since the rotors of the permanent magnet type synchronous motor are mechanically connected to each other, a synchronous operation can be performed.

The traction sheave type elevator apparatus according to the present invention includes a car which moves up and down the hoistway along the car guide rail, and a counterweight which moves up and down the hoistway along the counterweight guide rail. A main rope for suspending the car and the counterweight, a first drive sheave around which the main rope is wound , and driving the first drive sheave
It has a permanent magnet type synchronous motor, and is directly connected to the first drive sheave.
The first gear train whose outer dimension in the rotation axis direction is longer than its diameter.
And a second drive sheave around which the main rope is wound.
And a permanent magnet synchronous mode for driving the second drive sheave.
And the rotation axis direction is larger than the diameter of the second drive sheave.
A second gearless hoist whose outer dimensions are longer ,
The first gearless hoist in the hoistway;
Disposed between the cage passage and the ceiling of the hoistway, said first
Above the second gearless hoist in the hoistway Tsurigo
It was placed between the weight passage and the ceiling of the hoistway.
As a result, the burden torque per hoist is reduced and the hoist becomes smaller, and the car aisle and hoistway ceiling
And the space between the counterweight passage and the hoistway ceiling
Space can be saved. In addition, the geared hoist is installed in the hoistway.
Vibration noise propagates to the living room compared to when installed in a room
And an elevator apparatus with a small number of dies can be obtained.

Further , since the first gearless hoist and the second gearless hoist are operated synchronously, the car can be smoothly lifted and lowered by the plurality of hoists.

The traction sheave type elevator apparatus according to the present invention includes a car that moves up and down the hoistway along the car guide rail, and a counterweight that moves up and down the hoistway along the counterweight guide rail. A first and a second hoist provided in the hoistway;
And a traction sheave type elevator apparatus that raises and lowers the car and the counterweight by a second hoist, wherein the first hoist and the second hoist include:
The first hoist and the above-mentioned
Two inverters for driving and controlling the second hoist;
Connected to the two inverters to convert AC voltage to DC
And convert this DC voltage to the above two inverters.
One converter
The synchronous operation of the first and second hoists by
Can be.

The traction sheave type elevator apparatus according to the present invention includes a car that moves up and down the hoistway along the car guide rail, and a counterweight that moves up and down the hoistway along the counterweight guide rail. A first and a second hoist provided in the hoistway;
And by the second hoisting machine A traction sheave elevator apparatus for raising and lowering said car and said fishing case weight, have a common torque calculating means to said first and second hoisting machine, the By common torque calculation means
Ri was driven simultaneously controlling the first and second hoisting machine
First and second hoisting by common torque calculation means
Machine can be operated synchronously.

The traction sheave type elevator apparatus according to the present invention includes a car that moves up and down the hoistway along the car guide rail, and a counterweight that moves up and down the hoistway along the counterweight guide rail. A first and a second hoist provided in the hoistway;
And a traction sheave type elevator apparatus that raises and lowers the car and the counterweight by a second hoist, wherein the first hoist and the second hoist each have a motor. And, while connecting the armature windings of the motor in series, and connected to the armature windings,
The first hoist and the second hoist are simultaneously driven.
The first hoist and the second
Synchronous operation of the hoist can be performed .

[Brief description of the drawings]

FIG. 1 is a conceptual perspective view showing a first embodiment of the present invention.

FIG. 2 is a conceptual side view of FIG.

FIG. 3 is a conceptual plan view of FIG. 1;

FIG. 4 is a conceptual perspective view showing Embodiment 2 of the present invention.

FIG. 5 is a conceptual perspective view showing a third embodiment of the present invention.

FIG. 6 is a conceptual perspective view showing Embodiment 4 of the present invention.

FIG. 7 is a view showing a fifth embodiment of the present invention, and FIGS.
FIG. 7 is a longitudinal sectional view of the hoist according to the embodiment of FIG. 4, the embodiment of FIG. 4, and the embodiments of FIG. 5 and FIG.

8 is a longitudinal orthogonal cross-sectional view of an outer rotor motor portion shown in FIG. 7;

FIG. 9 is a longitudinally orthogonal cross-sectional view of the braking device shown in FIG. 7;

FIG. 10 is a view showing a sixth embodiment of the present invention, and is a longitudinal sectional view of the hoisting machine, corresponding to FIG. 7 described above.

FIG. 11 is a left side view of the support member of FIG. 10;

12 is a view showing a seventh embodiment of the present invention, and is a longitudinal sectional view of the hoist of the embodiment of FIG. 4 and is a view corresponding to FIG. 7 described above.

FIG. 13 is a view showing an eighth embodiment of the present invention, and is a control block diagram of an inverter for driving a hoist comprising a synchronous outer rotor motor using a permanent magnet.

FIG. 14 shows two embodiments of a synchronous outer rotor motor using permanent magnets, which are not mechanically connected to each other, for example, the embodiment of FIGS. 4 and 5; FIG. 1 is a control block diagram of an inverter that drives a hoist of an elevator device configured as shown in FIG.
Corresponds to 3.

FIG. 15 is a view showing a ninth embodiment of the present invention, in which two hoists including a synchronous outer rotor motor using a permanent magnet are provided, and these hoists are mutually connected to the embodiment of FIG. The control block diagram of the inverter which drives the hoist of the elevator apparatus comprised connected mechanically as shown.

16 is a main circuit diagram of the inverter in FIG.

FIG. 17 is a view showing a tenth embodiment of the present invention, in which two hoists including a synchronous outer rotor motor using a permanent magnet are provided, and these hoists are mutually connected to the embodiment of FIG. Mechanically connected configuration as shown,
The control block diagram of the inverter which drives the hoist of the elevator apparatus in which the armature winding of these hoists was connected in series.

FIG. 18 is a view showing an eleventh embodiment of the present invention, and is a main circuit diagram of an inverter for driving a hoist of an elevator apparatus provided with two hoists including a synchronous outer rotor motor using permanent magnets. .

FIG. 19 is a perspective view conceptually showing a conventional elevator device.

FIG. 20 is a perspective view conceptually showing another conventional elevator apparatus.

[Explanation of symbols]

1 hoistway, 4 car, 5 car guide rails, 6 counterweights, 7 counterweight guide rails, 8 main ropes, 14 braking device, 15 hoisting machine, 1st hoisting machine, 16
Fixed body, 17 axis, 18 drive sheave, 25 permanent magnet for field, 26 Armature yoke on stator side, fixed side, 27
Armature winding, 29 braking device, 32 brake shoe, 33 brake drum, 35 absolute encoder for detecting position, speed, field pole position, position / speed detector, absolute value detector, 39 support member, 40 joint , 55 drive inverter, control device, 56 drive inverter, control device, 58 converter bridge, converter, 60 inverter bridge, inverter, 61 inverter bridge, inverter, 66 safety means, 51 second hoisting machine, 412 second of drive inverter Functional block, current control means for stator-side armature windings, 413 torque calculation means.

Continuation of the front page (56) References JP-A-2-300085 (JP, A) JP-A-5-213544 (JP, A) JP-A-6-87595 (JP, A) JP-A-5-21830 (JP) , B2) JP 4-50297 (JP, Y2) European Patent Application Publication 565893 (EP, A2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 1/00-11/08

Claims (7)

(57) [Claims] 1. A car that moves up and down the hoistway along a car guide rail, a counterweight that moves up and down the hoistway along a counterweight guide rail, and the car and the counterweight. first and second main ropes hanging, first drive sheave and the first of said first main rope is wound
With a permanent magnet synchronous motor that drives the
The outer diameter of the first drive sheave in the rotation axis direction is larger than the diameter of the first drive sheave.
A first gearless hoist, a second drive sheave around which the second main rope is wound, and the second drive sheave.
Having a permanent magnet synchronous motor for driving, the second drive
The second is that the outer dimension in the rotation axis direction is longer than the diameter of the sheave .
Of and a gearless hoisting machine, the first gearless hoisting machine and the second gearless hoist hoistway plan view odor
And between the car and the hoistway wall.
First gearless hoist and second gearless hoist
A traction sheave type elevator apparatus characterized in that they are arranged apart from each other on the same rotation axis . 2. A permanent magnet type of the first gearless hoist.
Permanent synchronous motor rotor and the second gearless hoist
2. The traction sheave type elevator apparatus according to claim 1 , wherein rotors of the magnet type synchronous motor are mechanically connected to each other . 3. A lift in a hoistway along a car guide rail.
Along the guide rail for the landing basket and counterweight
A weight to lift up and down the hoistway
The main rope suspending the counterweight and the main rope were wound
A first drive sheave and an elongation for driving the first drive sheave;
Having a permanent magnet synchronous motor and having a diameter of the first drive sheave
First gearless with outer dimensions longer in the rotation axis direction than
A hoist; a second drive sheave around which the main rope is wound;
Permanent magnet synchronous motor for driving the second drive sheave
Having a rotation axis direction larger than the diameter of the second drive sheave.
A second gearless hoist having a longer outer dimension;
The first gearless hoist is mounted in the hoistway as described above.
Between the aisle and the ceiling of the hoistway,
Of the gearless hoist described above in the hoistway
Morino passage, features and be belt Lac Deployment sheave elevator apparatus that is arranged between the ceiling of the hoistway. 4. The first gearless hoist and the second gearless hoist.
請 characterized in that to synchronize operation a gearless hoisting machine
The traction sheave type elevator apparatus according to any one of claims 1 to 3 . 5. A hoist that moves up and down the hoistway along the car guide rails, a counterweight that moves up and down the hoistway along the counterweight guide rails, and a counterweight installed in the hoistway.
And first and second hoisting machine kicked, also counterweight the car and the by the first and second hoisting machine
Traction sheave type elevator system
And the first hoist and the second hoist.
The first hoist and the first hoist are provided correspondingly.
Two inverters for driving and controlling two hoisting machines;
AC voltage is connected to two inverters.
And convert this DC voltage to the above two inverters simultaneously.
Traction sheave elevator apparatus characterized by comprising a converter for supplying the. 6. A lift in the hoistway along the car guide rail.
Along the guide rail for the landing basket and counterweight
A counterweight that lifts up and down the hoistway
First and second hoisting machines,
And the second hoist and the above-mentioned car and the above-mentioned balance
Traction sheave type elevator system
And a common torch for the first and second hoisting machines.
It has torque calculation means, and this common torque calculation means
The features and to belt Lac Deployment sheave elevator apparatus that the first and second hoisting machine simultaneously driving controls. 7. A lift in a hoistway along a car guide rail.
Along the guide rail for the landing basket and counterweight
A counterweight that lifts up and down the hoistway
First and second hoisting machines,
And the second hoist and the above-mentioned car and the above-mentioned balance
Traction sheave type elevator system
And the first hoist and the second hoist
Each has a motor, and the armature winding of that motor is
Connected to the column and connected to the armature winding
Drive control of the first hoist and the second hoist simultaneously
Features and to belt Lac Deployment sheave elevator apparatus in that a inverter.