CN100590053C - Elevator device - Google Patents

Abstract

To provide an elevator apparatus capable of securing a maintenance space for the traction machine without enlarging the installation space even if the diameter of the traction machine is increased. It has a car (2); a counterweight (3); a driving sheave (4) wound with a main rope (9); and a traction machine (5) that rotates the driving sheave, and also has: a reverse steering wheel ( 6), which is arranged side by side with the driving sheave, and has an axis parallel to the axis of the driving sheave, and the counter-reversing wheel rotates in the opposite direction to the driving sheave; the first group of steering wheels (8a); the second group of steering wheels pulley (8b), the main rope is composed of the first group of main ropes (9a) and the second group of main ropes (9b), the first group of main ropes is wound on the drive sheave from the first group of steering wheels, and then reversed The second group of main ropes is wound on the reverse steering wheel from the second group of steering wheels, and then wound on the driving sheave in a reverse bending manner. On the projection plane seen in the axial direction, the part from the driving sheave to the counter-reversing sheave of the first group of main ropes intersects with the part from the counter-reversing sheave to the driving sheave of the second group of main ropes.

Description

Elevator device

technical field

The invention relates to a traction elevator device.

Background technique

In the existing machine-room traction-type elevator installation, the shaft of the traction machine is set horizontally, and the main rope wound on the drive sheave extends vertically downward from the drive sheave to suspend the car without passing the steering wheel. The main rope protruding from the opposite side of the driving sheave is wound on the steering wheel, and extends vertically downward from the steering wheel to suspend the counterweight.

In addition, in the conventional machine-room-less traction-type elevator device, in the elevator device in which the traction machine is installed on the top of the hoistway, for example, the shaft of the driving sheave is installed at the bottom of the hoistway. An upper elevator apparatus, or an elevator apparatus in which a hoisting machine is installed on the top of a hoistway so that the axis of the drive sheave is in the vertical direction (for example, refer to Patent Document 1 and Patent Document 2).

In addition, as other prior art, there is a self-propelled elevator apparatus having at least one pair of drive sheaves with prime movers mounted on the car and facing opposite to each other. During running, the driving sheave rotates so that the car moves relatively relative to the rope, so that the car moves vertically in the hoistway (for example, refer to Patent Document 3).

Patent Document 1: Japanese Patent Laid-Open No. 2002-80178

Patent Document 2: Japanese Patent Laid-Open No. 2001-48450

Patent Document 3: Japanese Patent Publication Special Table No. 2002-504473

In the traction elevator system, for example, in the case of using a permanent magnet type synchronous motor, in order to reduce the amount of permanent magnets used, it is necessary to reduce the size of the motor in the axial direction (width direction) and increase the size in the diameter direction. size. However, in the conventional traction-type elevator apparatus with a machine room configured as described above, if the diameter of the motor is increased, the height of the traction machine will increase, and the height of the machine room needs to be increased.

In addition, in the conventional machine-room-less traction-type elevator apparatus, in the elevator apparatus in which the shaft of the driving sheave is horizontal, the hoistway is installed at the uppermost part of the hoistway, since the hoistway is arranged close to the hoistway ceiling , so when the diameter of the motor increases, the height dimension from the uppermost floor to the hoistway ceiling needs to be increased. In addition, in order to install such a large hoisting machine above the car, a large installation space for the hoisting machine is required above the car. Moreover, since the traction machine is installed above the car so that the maintenance surface faces the side, when the maintenance and overhaul of the traction machine is to be carried out on the car, it is necessary to stand on the side of the traction machine on the car. Therefore, there is a problem that a sufficient work space cannot be secured.

In addition, in the conventional traction-type elevator apparatus without machine room, in the elevator apparatus in which the shaft of the driving sheave is in the vertical direction, the hoisting machine is installed on the top of the hoistway, in order to prevent the main rope from running toward the driving rope. The entry angle of the groove of the pulley and the steering wheel around which the main rope is wound is too large. It is necessary to ensure a certain distance between the driving sheave and the steering wheel. On the horizontal projection plane, the center of the traction machine must be set at a distance away from the center of the car. Therefore, when the diameter of the motor increases, there is a problem that the traction machine interferes with the hoistway wall or is too close.

Contents of the invention

The present invention was made in order to solve the above problems, and its object is to provide such an elevator apparatus: even if the diameter of the motor is increased to make the motor of the traction machine thinner, it does not need to expand the installation space of the machine room and the hoistway, and can Ensuring adequate maintenance space for the traction machine.

The elevator device of the present invention comprises: a car, which is suspended by the main rope, and lifts in the hoistway; a counterweight, which is suspended by the main rope, and lifts in the direction opposite to the car in the hoistway; the driving sheave , the main rope is wound on it; and the traction machine, which makes the car and the counterweight move up and down by rotating the driving sheave. Adjacently arranged side by side and having an axis parallel to the axis of the drive sheave, and the counter-steering wheel rotates in a direction opposite to the direction of rotation of the drive sheave; a first set of steering wheels, which are arranged so as not to include the counter-steering wheel , consisting of at least one steering wheel; and a second set of steering wheels, consisting of at least one steering wheel, the main ropes include a first set of main ropes and a second set of main ropes, the first set of main ropes and the second set of main ropes The sets of main ropes are respectively composed of at least one main rope, and the first set of main ropes is wound on the driving sheave from one of the steering wheels in the first set of steering wheels, and then wound on the reverse steering wheel, so as to wind and The bending on the drive sheave is bent in the opposite direction, and the second set of main ropes is wound from one of the second set of deflection pulleys to the counter deflection pulley, and then wound on the drive sheave, thus winding to and from Bending in the opposite direction to the bending on the counter-reversing pulley, on the projection plane seen from the axial direction of the drive sheave and the counter-reversing sheave, the part of the first group of main ropes from the drive sheave to the counter-reversing sheave is the same as the second The part of the main rope crossed from the counter-reversing sheave to the drive sheave.

In the elevator device of the present invention, the drive sheave of the traction machine with a horizontal rotating shaft is arranged above the counterweight, and the counterweight is arranged close to the drive sheave of the traction machine above the counterweight, The steering wheel is set above the car, and the steering wheel is set above the shaft of the driving sheave and the counter steering wheel of the traction machine. Therefore, when standing on the car and performing maintenance work from the side of the traction machine, it is possible to Use the space above the car as a large maintenance space.

Description of drawings

Fig. 1 is a schematic perspective view showing a conceptual configuration of an elevator apparatus according to Embodiment 1 of the present invention.

Fig. 2 is a partially detailed view partially showing an elevator apparatus according to Embodiment 1 of the present invention.

Fig. 3 is a schematic perspective view showing a conceptual structure of an elevator apparatus according to Embodiment 2 of the present invention.

Fig. 4 is a schematic perspective view showing a conceptual structure of an elevator apparatus according to Embodiment 3 of the present invention.

Fig. 5 is a schematic plan view showing a conceptual structure of an elevator apparatus according to Embodiment 4 of the present invention.

Fig. 6 is a partially detailed view partially showing an elevator apparatus according to Embodiment 4 of the present invention.

Fig. 7 is a schematic perspective view showing a conceptual structure of an elevator apparatus according to Embodiment 5 of the present invention.

Fig. 8 is a front view seen from direction B in Fig. 7 .

Fig. 9 is a plan view seen from the direction C in Fig. 7 .

Label description

1: shaft; 2: elevator car; 3: counterweight; 4: driving sheave (first driving sheave); 4a: shaft of driving sheave; 5: traction machine (first traction machine); 6: Counter-reversing wheel; 6a: The shaft of the counter-reversing wheel; 7a: One of the first group of steering wheels arranged on the car; 7b: One of the second group of steering wheels arranged on the car; 7c: The shaft of one of the first group of steering wheels arranged on the car; 7d: the shaft of one of the second group of steering wheels arranged on the car; 8a: one of the first group of steering wheels; 8b: the first One of the two sets of steering wheels; 8c: the shaft of one of the first set of steering wheels; 8d: the shaft of one of the second set of steering wheels; 9a: the first set of main ropes; 9b: the second set of main ropes; 10: The ascending direction of the car; 11: The descending direction of the counterweight; 12: The rotating direction of the driving sheave; 13: The rotating direction of the reverse steering wheel; 14a: The steering wheel for counterweight; 14b: The steering wheel for counterweight; 15: 16: the second drive sheave; 17: the second traction machine; 18: the rotation direction of the first drive sheave; 19: the rotation direction of the second drive sheave.

Detailed ways

In the embodiments of the present invention, a machine-room-less traction elevator apparatus will be described as an example.

Example 1

Fig. 1 is a schematic perspective view showing the conceptual structure of an elevator apparatus according to Embodiment 1 of the present invention, and Fig. 2 is a partial detailed view partially showing the elevator apparatus according to Embodiment 1 of the present invention.

In FIG. 1 , in a traction-type elevator apparatus, an elevator car 2 and a counterweight 3 are provided in a hoistway 1 so as to be able to move up and down. In the uppermost part of the hoistway 1, the driving sheave 4, the traction machine 5 and the counterweight 6 are arranged to be located above the counterweight 3, wherein the driving sheave 4 is wound with a motor for lifting the car 2 and the counterweight 3. The main rope 9 is used, the traction machine 5 is used to rotate the driving sheave 4, and the counter-reversing pulley 6 is adjacently arranged side by side with the driving sheave 4. And, at the uppermost part in the hoistway 1, the steering wheels 7a and 7b provided directly above the car 2 are provided so that their shafts 7c, 7d are horizontal. In addition, on the side of the uppermost counterweight 3 in the hoistway 1, above the shaft 4a of the drive sheave 4 and the shaft 6a of the counter deflection pulley 6, deflection pulleys 8a and 8b are provided. The shaft 4a of the driving sheave 4 and the shaft 6a of the counter-reversing pulley 6 are arranged horizontally on the upper part of the counterweight 3, and the counter-reversing sheave 6 and the driving sheave 4 rotate in opposite directions.

In addition, one end of the main rope 9 for suspending the car 2 and the counterweight 3 is installed on the car 2, and the other end is installed on the counterweight 3. The main rope 9 includes a first group of main ropes 9a and a second group of main ropes 9b, the first group of main ropes 9a and the second group of main ropes 9b are respectively composed of at least one main rope. The deflection wheels 7a and 8a are the deflection wheels wound with the first set of main ropes, which constitute the first set of deflection wheels. The deflection wheels 7b and 8b are deflection wheels wound with a second set of main ropes, which constitute a second set of deflection wheels.

One end of the first group of main ropes 9a is installed on the left side of the car 2 top to suspend a part of the car 2, and the other end of the first group of main ropes 9a is installed on the right side of the counterweight 3 top to suspend Part of the counterweight 3. This first group of main ropes 9a starts from the left fixed part at the top of the car 2, is wound on the steering wheel 7a as one of the first group of steering wheels on the left side of the upper part of the car 2, and is then wound on On the steering wheel 8a as one of the first group of steering wheels, and then facing obliquely downward, the steering wheel 8a is arranged on the upper left side of the driving sheave 4 . Then, the first group of main ropes 9a is wound back upwards after being wound on the lower side of the driving sheave 4, and is wound on the upper side of the counter-reversing pulley 6 arranged side by side adjacent to the driving sheave 4, and then turns to Turn back below. Then, the first set of main ropes 9a passes through the path to the right-side fixed part on the upper part of the counterweight 3 .

On the other hand, one end of the second group of main ropes 9b is installed on the right side of the upper part of the car 2 to suspend a part of the car 2, and the other end of the second group of main ropes 9b is installed on the left side of the upper part of the counterweight 3 part, to suspend a part of the counterweight 3. This second group of main ropes 9b starts from the fixed part on the right side at the top of the car 2, is wound on the steering wheel 7b as one of the second group of steering wheels on the right side of the upper part of the car 2, and is then wound on On the steering wheel 8b as one of the second group of steering wheels, then towards obliquely downward, the steering wheel 8b is arranged on the upper right side of the counter steering wheel 6 . Then, the second group of main ropes 9b is turned back upwards after being wound around the underside of the counter-reversing pulley 6, and is wound around the upper side of the drive sheave 4 adjacent to the counter-reversing pulley 6, and then turned to the opposite side. Turn back below. Then, the second group of main ropes 9 b passes through a path reaching the left fixing part on the upper part of the counterweight 3 .

The first group of main ropes and the second group of main ropes intersect on the projection plane seen from the axial direction at the part from the driving sheave to the counter steering wheel. In addition, 15 is a braking device, which is provided on the counter-steering wheel 6 instead of the traction machine 5 .

Fig. 2 is a partial detailed view of Fig. 1 seen from direction A. As shown in Fig. 2, the first group of main ropes 9a and the second group of main ropes 9b will not interfere with each other, but are neatly and orderly wound around the drive On the rope pulley 4 and the counter-reversing pulley 6.

When car 2 rose along the direction of ascending direction 10, counterweight 3 descended along the direction of descending direction 11, and this moment, drive sheave 4 rotated towards the direction shown by arrow 12, and counter-reversing wheel 6 rotated toward the direction shown by arrow 13.

In Fig. 1, since the traction machine 5 and the reverse steering wheel 6 are arranged above the counterweight 3, only the steering wheels 7a and 7b are arranged above the car 2, so when standing on the car 2, the traction machine 5 When performing maintenance work on the lateral side of the car 2, the space above the car 2 can be used as a large maintenance space. In addition, in order to reduce the amount of permanent magnets used in the motor of the traction machine, it is necessary to reduce the size of the motor in the axial direction (width direction) and increase the size in the radial direction. However, in this case, since the traction machine is not Therefore, there is no need for a large installation space above the car, and since the size of the traction machine in the axial direction is small, the area of the hoistway can be reduced.

In addition, in Fig. 1, the traction machine 5 does not have a braking device, but adopts such a structure: the main rope groove of the counter-reversing pulley 6 is used as the main rope groove that generates the same frictional driving force as the driving sheave 4, The braking device 15 is provided on the counter-steering wheel 6 . Therefore, since the hoisting machine 5 does not have a braking device, it is not restricted by the size of the braking device, and can be miniaturized, and the braking device 15 is not restricted by the size of the hoisting machine 5 either. Can realize miniaturization.

In addition, since the hoisting machine 5, the counter-steering pulley 6, and the braking device 15 are disposed close to each other, they can also be integrally formed.

In addition, in Embodiment 1, it is configured that the steering wheels 7a and 7b, 8a, 8b, the driving sheave 4, the traction machine 5, the counter steering wheel 6, and the braking device 15 are all arranged inside the hoistway 1, but All or part of them may be installed in a machine room (not shown) provided adjacent to the hoistway.

In addition, in Embodiment 1, the ends of the main ropes 9a of the first group and the ends of the main ropes 9b of the second group are directly mounted on the car 2 and the counterweight 3, but it is also possible to configure them to be mounted on the car. A suspension wheel (not shown) is provided with the suspension part of the counterweight, the main rope is wound on the suspension wheel and turned back, and then the ends of each main rope are fixed to the top of the hoistway or the machine room.

In the elevator apparatus constructed in this way, the drive sheave of the hoisting machine having a horizontal axis is arranged above the counterweight, and the counterweight is arranged adjacent to the driving sheave of the hoisting machine above the counterweight. The steering wheel is set above the car, and the steering wheel is set on the upper side of the traction machine and the counter steering wheel. Therefore, when standing on the car and performing maintenance work from the side of the traction machine, the upper part of the car can be The space is used as a large maintenance space.

Example 2

Fig. 3 is a schematic perspective view showing a conceptual structure of an elevator apparatus according to Embodiment 2 of the present invention.

In FIG. 3 , the same reference numerals as in FIG. 1 denote corresponding parts. In Embodiment 1, two deflection wheels 7a, 7b are provided on the upper portion of the car 2, whereas in this embodiment, one deflection wheel 7b is provided on the upper portion of the car 2. The other contents are the same as in Embodiment 1.

The deflection pulley 8a is the deflection pulley on which the first set of main ropes is wound, which constitutes the first set of deflection pulleys. The deflection wheels 7b and 8b are deflection wheels wound with a second set of main ropes, which constitute a second set of deflection wheels.

One end of the first group of main ropes 9a is installed on the left rear side of the upper part of the car 2 to suspend a part of the car 2, and the other end of the first group of main ropes 9a is installed on the right side of the counterweight 3 top to Part of the suspended counterweight 3. The first group of main ropes 9a starts from the fixed part on the left rear side of the upper part of the car 2, is wound on the steering wheel 8a, and then faces downward. The steering wheel 8a is arranged on the upper left side of the driving sheave 4. . Next, the first group of main ropes 9a is wound back up on the lower side of the driving sheave 4, then wound on the upper side of the counter-reversing pulley 6 arranged side by side adjacent to the driving sheave 4, and then Turn back down. Then, the first set of main ropes 9a passes through the path to the right-side fixed part on the upper part of the counterweight 3 .

On the other hand, one end of the second group of main ropes 9b is installed on the right front side of the upper part of the car 2 to suspend a part of the car 2, and the other end of the second group of main ropes 9b is installed on the left side of the upper part of the counterweight 3 part, to suspend a part of the counterweight 3. This second group of main ropes 9b starts from the right front side fixed part on the top of the car 2, is wound on the steering wheel 7b as one of the second group of steering wheels on the right side of the upper part of the car 2, and is then wound on On the steering wheel 8b as one of the steering wheels of the second group, and then facing downward, the steering wheel 8b is arranged on the upper right side of the counter steering wheel 6 . Then, the second group of main ropes 9b is wound back upwards after being wound on the lower side of the reverse steering wheel 6, then wound on the upper side of the driving sheave 4 adjacent to the reverse steering wheel 6, and then turned to Turn back below. Then, the second group of main ropes 9 b passes through a path reaching the left fixing part on the upper part of the counterweight 3 .

The first group of main ropes and the part of the second group of main ropes from the driving sheave to the counter steering wheel intersect on the projection plane seen from the axial direction.

With such a structure, the same effect can be obtained even if the number of steering wheels is smaller than that of the first embodiment.

Example 3

Fig. 4 is a schematic perspective view showing a conceptual structure of an elevator apparatus according to Embodiment 3 of the present invention.

In FIG. 4 , in the traction type elevator apparatus, an elevator car 2 and a counterweight 3 are provided in a hoistway 1 so as to be able to move up and down. In the uppermost part of the hoistway 1, the driving sheave 4, the traction machine 5 and the counterweight 6 are arranged to be located above the counterweight 3, wherein the driving sheave 4 is wound with a motor for lifting the car 2 and the counterweight 3. The main rope 9 is used, the traction machine 5 is used to rotate the driving sheave 4, and the counter-reversing pulley 6 is adjacently arranged side by side with the driving sheave 4. In addition, deflection pulleys 8 a and 8 b are provided horizontally above the shaft 4 a of the driving sheave 4 and the shaft 6 a of the counter deflection pulley 6 so that the shafts 8 c and 8 d are horizontal. The shaft 4a of the driving sheave 4 and the shaft 6a of the counter-reversing pulley 6 are arranged on the upper portion of the counterweight 3 so as to be horizontal to each other. In addition, one end of the main rope 9 for suspending the car 2 and the counterweight 3 is installed on the car 2, and the other end is installed on the counterweight 3. The main rope 9 includes a first group of main ropes 9a and a second group of main ropes 9b, the first group of main ropes 9a and the second group of main ropes 9b are respectively composed of at least one main rope. The deflection pulley 8a is the deflection pulley on which the first set of main ropes is wound, which constitutes the first set of deflection pulleys. The deflection pulley 8b is the deflection pulley on which the second set of main ropes is wound, which constitutes the second set of deflection pulleys.

One end of the first group of main ropes 9a is installed on the left side of the car 2 top to suspend a part of the car 2, and the other end of the first group of main ropes 9a is installed on the right side of the counterweight 3 top to suspend Part of the counterweight 3. The first group of main ropes 9a starts from the left fixed part on the upper part of the car 2, is wound on the diverting pulley 8a provided on the upper left side of the driving sheave 4, and then faces downward. Then, the first group of main ropes 9a is wound back upwards after being wound on the lower side of the driving sheave 4, then wound on the upper side of the counter-reversing pulley 6 arranged side by side adjacent to the driving sheave 4, and then turns to Turn back below. Then, the first set of main ropes 9a passes through the path to the right-side fixed part on the upper part of the counterweight 3 .

On the other hand, one end of the second group of main ropes 9b is installed on the right side of the upper part of the car 2 to suspend a part of the car 2, and the other end of the second group of main ropes 9b is installed on the left side of the upper part of the counterweight 3 part, to suspend a part of the counterweight 3. The second group of main ropes 9b starts from the right side fixing part on the upper part of the car 2, is wound on the steering wheel 8b arranged on the upper right side of the counter steering wheel 6, and then faces downward. Then, the second group of main ropes 9b is wound back upwards after being wound on the lower side of the reverse steering wheel 6, then wound on the upper side of the driving sheave 4 adjacent to the reverse steering wheel 6, and then turned to Turn back below. Then, the second group of main ropes 9 b passes through a path reaching the left fixing part on the upper part of the counterweight 3 .

The first group of main ropes and the part of the second group of main ropes from the driving sheave to the counter steering wheel intersect on the projection plane seen from the axial direction. In addition, the braking device is built into the hoisting machine 5 .

When the car 2 rises in the direction of the ascending direction 10, the counterweight 3 descends in the direction of the descending direction 11, and at this time, the drive sheave 4 rotates in the direction indicated by the arrow 12, and the counter-reversing pulley 6 rotates in the direction indicated by the arrow 13 .

Embodiment 3 has the same effect as Embodiment 1, but as long as the structure with extremely large diameters of the steering wheels 8a, 8b is not used, the main rope 9 cannot be suspended at the center of gravity of the car, but at the center of the car 2. The rear end is suspended. Therefore, compared with the elevator with a large floor area of the car, Embodiment 3 is more suitable for an elevator with a small floor area (low load capacity), which can be formed by a number of steering wheels less than that of Embodiment 1.

Example 4

Fig. 5 is a schematic plan view showing a conceptual structure of an elevator apparatus according to Embodiment 4 of the present invention, and Fig. 6 is a partial detailed view partially showing the elevator apparatus according to Embodiment 4 of the present invention.

In FIG. 5 , in the traction type elevator apparatus, an elevator car 2 and a counterweight 3 are provided in a hoistway 1 so as to be able to move up and down. In the uppermost part of the hoistway 1, the first driving sheave 4, the second driving sheave 16, the first hoisting machine 5 and the second hoisting machine 17 are arranged above the car 2, wherein the first driving sheave The main rope 9 for lifting the car 2 and the counterweight 3 is wound on the 4, and the second driving sheave 16 is arranged side by side adjacent to the driving sheave 4, and is wound with the main rope 9 for lifting the car 2 and the counterweight 3. The main rope 9, the first hoisting machine 5 is used to rotate the first driving sheave 4, and the second hoisting machine 17 is arranged side by side adjacent to the first hoisting machine 5, and is used to make the second driving sheave 4 rotate. 16 spins. In addition, a pair of left and right deflection wheels 7 a and 7 b are provided at the uppermost part in the hoistway 1 , and the deflection wheels 7 a and 7 b are provided directly above the car 2 . In addition, a pair of right and left steering wheels 14 a and 14 b for counterweight are provided at the uppermost part in the hoistway 1 , and the steering wheels 14 a and 14 b for counterweight are provided directly above the counterweight 3 . The first hoisting machine 5 and the second hoisting machine 17 are arranged approximately horizontally above the car 2 in the hoistway 1 so that the shafts of their respective first driving sheave 4 and the shaft of the second driving sheave 16 In the vertical direction, the second drive sheave 16 rotates in the opposite direction to the first drive sheave 4 .

In addition, one end of the main rope 9 for suspending the car 2 and the counterweight 3 is installed on the car 2, and the other end is installed on the counterweight 3. The main rope 9 includes a first group of main ropes 9a and a second group of main ropes 9b, the first group of main ropes 9a and the second group of main ropes 9b are respectively composed of at least one main rope.

The deflection wheels 7a and 14a are the deflection wheels wound with the first set of main ropes, which constitute the first set of deflection wheels. The deflection wheels 7b and 14b are deflection wheels wound with a second set of main ropes, which constitute a second set of deflection wheels.

One end of the first group of main ropes 9a is installed on the left side of the car 2 top to suspend a part of the car 2, and the other end of the first group of main ropes 9a is installed on the right side of the counterweight 3 top to suspend Part of the counterweight 3. The first group of main ropes 9a starts from the left fixed part on the upper part of the car 2, winds on the car deflection pulley 7a on the left side of the upper part of the car 2, and then goes horizontally toward the first driving sheave 4. direction. Next, the first group of main ropes 9a is wound horizontally around the first driving sheave 4 and turned back, and then horizontally wound around the second driving sheave 16 arranged in parallel with the first driving sheave 4 , turn back to the direction opposite to the bending direction on the driving sheave 4 again. Then, the first group of main ropes 9a is wound around the counterweight steering wheel 14a on the right side of the upper part of the counterweight 3, then hangs down, and passes through the path to the right side fixing part on the upper part of the counterweight 3.

On the other hand, one end of the second group of main ropes 9b is installed on the right side of the upper part of the car 2 to suspend a part of the car 2, and the other end of the second group of main ropes 9b is installed on the left side of the upper part of the counterweight 3 part, to suspend a part of the counterweight 3. The second group of main ropes 9b starts from the right fixed part on the upper part of the car 2, is wound on the car deflection pulley 7b on the right side of the upper part of the car 2, and then goes horizontally toward the second driving sheave 16. direction. Then turn back horizontally after being wound on the second driving sheave 16, then horizontally wind on the first driving sheave 4 that is adjacent to the second driving sheave 16 and set up side by side, and then to the second driving sheave 4. The bending direction on the sheave 16 turns back in the opposite direction. Then, the second group of main ropes 9b is wound around the counterweight steering wheel 14b on the left side directly above the counterweight 3, hangs down, and then passes through a path reaching the left side fixing part on the counterweight 3 top. The first group of main ropes and the second group of main ropes intersect on the projected plane seen from the axial direction at the part from the driving sheave to the counter steering wheel.

Fig. 6 is a partial detailed view of Fig. 5, as shown in Fig. 6, the first group of main ropes 9a and the second group of main ropes 9b will not interfere with each other, but are wound neatly and orderly around the first driving sheave 4 and On the second driving sheave 16.

When the car 2 rises, the counterweight 3 descends, and now the first drive sheave 4 rotates in the direction shown by the arrow 18, and the second drive sheave 16 rotates in the direction shown by the arrow 19.

In Fig. 5, the first hoisting machine 5 and the second hoisting machine 17 are arranged above the car 2 in the hoistway, but since two hoisting machines are provided, the size of each individual hoisting machine can be reduced. Small, so it doesn't take up a lot of setup space. Furthermore, even if the hoisting machine is installed in the center of the planar area of the hoistway, the main rope can be easily wound.

In the fourth embodiment, the second hoisting machine 17 is provided in addition to the first hoisting machine 5 , but it may also be configured such that a reverse steering wheel is provided instead of the second hoisting machine 17 as in the first embodiment.

In addition, although it is constituted as follows: the steering wheels 7a and 7b, the counterweight steering wheels 14a and 14b, the first driving sheave and the first traction machine 5, the second driving sheave 16 and the second traction machine 17 are arranged in the hoistway 1, but it may also be configured such that all or part of them are provided in a machine room (not shown) provided adjacent to the hoistway.

In addition, in Embodiment 4, the end portions of the main ropes 9a of the first group and the ends of the main ropes 9b of the second group are directly mounted on the car 2 and the counterweight 3, but it may also be constructed in such a way that: The suspension part of the box and the counterweight is provided with a suspension wheel (not shown), the main rope is wound on the suspension wheel and turned back, and the end of each main rope is fixed to the top of the hoistway or the machine room.

In the elevator apparatus thus constituted, the shaft of the driving sheave of the traction machine is arranged vertically above the car, the counter-reversing sheave is provided close to the driving sheave of the traction machine, and the deflection sheave is provided above the car. The steering wheel is installed above the counterweight, so even if the traction machine is installed in the center of the hoistway plane, the main rope can be easily wound, and the traction machine will not interfere with or get too close to the hoistway and the machine room wall.

Example 5

Fig. 7 is a schematic perspective view showing a conceptual structure of an elevator device according to Embodiment 5 of the present invention, Fig. 8 is a front view seen from the direction B in Fig. 7 , and Fig. 9 is a plan view seen from the direction C in Fig. 7 .

In FIG. 7 , in the traction type elevator apparatus, an elevator car 2 and a counterweight 3 are installed in a hoistway 1 so as to be able to move up and down. In the uppermost part of the hoistway 1, the driving sheave 4, the traction machine 5 and the counterweight 6 are arranged to be located above the counterweight 3, wherein the driving sheave 4 is wound with the main mechanism for lifting the car 2 and the counterweight 3. The rope 9 and the traction machine 5 are used to rotate the driving sheave 4 , and the counter-reversing sheave 6 is adjacently arranged in parallel with the driving sheave 4 . And at the top in the hoistway 1, the steering wheels 7a and 7b are arranged to make the shafts 7c, 7d horizontal, and when the car 2 is at the top of the stroke, the steering wheels 7a and 7b are arranged at the top of the hoistway 1 between the car 2 and the In the gap between shaft 1. In addition, deflection pulleys 8 a and 8 b are provided above the shaft 4 a of the driving sheave 4 and the shaft 6 a of the counter deflection pulley 6 on the uppermost counterweight 3 side in the hoistway 1 . The shaft 4 a of the driving sheave 4 and the shaft 6 a of the counterweight 6 are horizontally arranged on the upper part of the counterweight 3 , and the counterweight 6 rotates in the direction opposite to that of the driving sheave 4 .

In addition, one end of the main rope 9 for suspending the car 2 and the counterweight 3 is installed on the car 2, and the other end is installed on the counterweight 3, and the main rope 9 includes a first group of main ropes 9a and a second group of main ropes 9a. The ropes 9b, the first group of main ropes 9a and the second group of main ropes 9b are respectively composed of at least one main rope. The deflection wheels 7a and 8a are the deflection wheels wound with the first set of main ropes, which constitute the first set of deflection wheels. The deflection wheels 7b and 8b are deflection wheels wound with a second set of main ropes, which constitute a second set of deflection wheels.

One end of the first group of main ropes 9a is installed on the right side of the lower part of the car 2 to suspend a part of the car 2, and the other end of the first group of main ropes 9a is installed on the right side of the counterweight 3 top to suspend Part of the counterweight 3. The first group of main ropes 9a starts from the fixed part on the right side at the lower part of the car 2, and is wound on the steering wheel 7a, which is one of the first group of steering wheels, and the steering wheel 7a is located at the uppermost part of the hoistway 1 in the car 2. The right side of the steering wheel is then wound on the steering wheel 8a as one of the first group of steering wheels and then towards the obliquely downward, and the steering wheel 8a is arranged on the upper right side of the counter steering wheel 6. Next, the first group of main ropes 9a is wound around the lower side of the drive sheave 4, turned back upwards, then wound around the upper side of the counter-reversing sheave 6 arranged in parallel with the drive sheave 4, and then turned downwards. Turn back. Then, pass the path to the right side fixing part on the top of the counterweight 3.

On the other hand, one end of the second group of main ropes 9b is installed on the left side of the lower part of the car 2 to suspend a part of the car 2, and the other end of the second group of main ropes 9b is installed on the left side of the upper part of the counterweight 3 part, to suspend a part of the counterweight 3. The second group of main ropes 9b, starting from the left fixed part at the lower part of the car 2, is wound on the steering wheel 7b, which is one of the second group of steering wheels, and the steering wheel 7b is located at the uppermost part of the hoistway 1 in the car 2 The left side of the steering wheel is then wound on the steering wheel 8b as one of the second group of steering wheels and then towards the obliquely downward, and the steering wheel 8b is arranged on the left side of the driving sheave 4 top. Next, the second group of main ropes 9b is wound around the underside of the counter-reversing pulley 6 and turned back upwards, then wound around the upper side of the driving sheave 4 arranged in parallel with the counter-reversing pulley 6, and then goes downward. Turn back. Then, the second group of main ropes 9 b passes through a path reaching the left fixing part on the upper part of the counterweight 3 .

The first group of main ropes 9 a and the second group of main ropes 9 b intersect on a projected plane viewed from the axial direction at a portion from the drive sheave 4 to the counter deflection sheave 6 . And, the first group of main ropes 9a and the second group of main ropes 9b are arranged between the steering pulleys 8a and 8b above the drive sheave 4 and the counter-reversing pulley 6, and the drive sheave 4 and the counter-reversing pulley 6. part, intersect on the projected plane seen from the axial direction. Moreover, in order to engage with each main rope 9a, 9b, deflection pulley 8a, 8b inclines so that shaft 8c, 8d may become a vertical direction.

Fig. 8 is a partial detailed view of Fig. 7 seen from B direction, the part shown by double-dashed line in the figure represents the position when the car 2 reaches the uppermost part of the stroke. Fig. 9 is a partial detailed view of Fig. 7 seen from B direction. As shown in FIG. 8, the deflection wheels 7a, 7b are provided in the gap between the car 2 and the hoistway 1, and even if the car 2 reaches the uppermost part, the deflection wheels 7a, 7b will not interfere with the car 2. In addition, as shown in Figure 9, the deflection wheels 8a and 8b are arranged above the car 2 so that: on the horizontal projection plane, a part of the deflection wheels 8a and 8b overlaps with the car 2, but due to the first group of main ropes 9a and The second group of main ropes 9b is arranged as follows: at the part between the steering pulleys 8a and 8b above the drive sheave 4 and the reverse deflection pulley 6, and the drive sheave 4 and the reverse deflection pulley 6, viewed from the axial direction Therefore, the distance between the steering wheel 8a and the driving sheave 4 and the distance between the steering wheel 8b and the counter-steering wheel 6 become larger, due to the steering wheel engaged with the inclination of each main rope 9a, 9b The wheels 8a and 8b are tilted so that the shafts 8c, 8d are approximately vertical, so that the space for longitudinal arrangement of the steering wheels 8a and 8b is reduced, and the required height dimension above the car is small.

As described above, the elevator apparatus of the present invention is particularly suitable for a machine room-less traction type elevator apparatus.

Claims (8)

1. lift appliance comprises: car, and it is by main rope hanging, and lifting in hoistway; Counterweight, it is by main rope hanging, and carries out lifting to the direction opposite with described car in hoistway; Drive rope sheave, be wound with described main rope on it; And towing machine, it makes described car and described counterweight carry out lifting moving by described driving rope sheave is rotated, and described lift appliance is characterised in that,

Also comprise: contrary wheel flutter, itself and described driving rope sheave are adjacent to be set up in parallel, and have the axle parallel with the axle of described driving rope sheave, and should be against wheel flutter to the direction rotation opposite with the hand of rotation of described driving rope sheave; First group of wheel flutter, it is arranged to not comprise described contrary wheel flutter, is made of at least one wheel flutter; And second group of wheel flutter, it is made of at least one wheel flutter,

Described main rope comprises first group of master's rope and second group of master's rope, and described first group of master's rope and described second group of master's rope are made of at least one main rope respectively,

The wheel flutter of described first group of master's rope from described first group of wheel flutter is wound on the described driving rope sheave, be wound on then on the described contrary wheel flutter, thereby to be wound on described driving rope sheave on crooked opposite direction bending,

The wheel flutter of described second group of master's rope from described second group of wheel flutter is wound on the described contrary wheel flutter, be wound on then on the described driving rope sheave, thereby to be wound on described contrary wheel flutter on crooked opposite direction bending,

On described driving rope sheave and the described contrary projecting plane of axially seeing of wheel flutter, described first group of master's rope from described driving rope sheave to described contrary part of wheel flutter and intersecting to the part that takes turns to described driving rope sheave of described second group of master's rope from described reverse.

2. lift appliance according to claim 1 is characterized in that,

Drive the axle of rope sheave and the axle horizontal ground of contrary wheel flutter and be provided with,

First group of wheel flutter is made of the wheel flutter that axle horizontal ground is provided with,

Second group of wheel flutter is made of the wheel flutter that axle horizontal ground is provided with,

Described first group of wheel flutter and second group of wheel flutter are arranged on the top of the axle of described driving rope sheave and described contrary wheel flutter,

In the path from the car to the counterweight of first group of master's rope, the first main rope is wound on described first group of wheel flutter, described driving rope sheave and the described contrary wheel flutter in turn,

In the path from the car to the counterweight of second group of master's rope, the second main rope is wound on described second group of wheel flutter, described contrary wheel flutter and the described driving rope sheave in turn.

3. lift appliance according to claim 1 is characterized in that,

Drive the axle of rope sheave and the axle along continuous straight runs of contrary wheel flutter and be arranged at the counterweight top,

A wheel flutter in wheel flutter in first group of wheel flutter and the second group of wheel flutter is arranged on the top of the axle of described driving rope sheave and described contrary wheel flutter,

Above car, be provided with another wheel flutter in described first group of wheel flutter and another wheel flutter in described second group of wheel flutter, perhaps be provided with another wheel flutter in described first group of wheel flutter or the either party of another wheel flutter in described second group of wheel flutter

In the path from the car to the counterweight of first group of master's rope, the first main rope is wound on one or two wheel flutter in described second group of wheel flutter, described driving rope sheave and the described contrary wheel flutter in turn,

In the path from the car to the counterweight of second group of master's rope, the second main rope is wound on one or two wheel flutter in described first group of wheel flutter, described contrary wheel flutter and the described driving rope sheave in turn.

4. lift appliance according to claim 1 is characterized in that,

The axle that drives the axle of rope sheave and contrary wheel flutter is arranged at the top of car along vertical direction,

A wheel flutter in wheel flutter in first group of wheel flutter and the second group of wheel flutter, be arranged on the top of car in the mode of axle horizontal, another wheel flutter in described first group of wheel flutter and another wheel flutter of described second group of wheel flutter, be arranged on the top of counterweight in the mode of axle horizontal

In the path from the car to the counterweight of first group of master's rope, the first main rope is wound in turn with on the lower member: be arranged at a wheel flutter, described driving rope sheave, the described contrary wheel flutter in described first group of wheel flutter of car top and be arranged at another wheel flutter in described first group of wheel flutter of described counterweight top

In the path from the car to the counterweight of second group of master's rope, the second main rope is wound in turn with on the lower member: be arranged at a wheel flutter, described contrary wheel flutter, the described driving rope sheave in described second group of wheel flutter of car top and be arranged at another wheel flutter in described second group of wheel flutter of described counterweight top.

5. lift appliance according to claim 1 is characterized in that,

Drive the axle of rope sheave and the axle along continuous straight runs of contrary wheel flutter and be arranged at the counterweight top,

A wheel flutter in wheel flutter in first group of wheel flutter and the second group of wheel flutter is arranged on the top of the axle of described driving rope sheave and described contrary wheel flutter,

Above car, be provided with another wheel flutter in described first group of wheel flutter and another wheel flutter in described second group of wheel flutter,

In the path from the car to the counterweight of first group of master's rope, the first main rope is wound on two wheel flutters of described first group of wheel flutter, described driving rope sheave and the described contrary wheel flutter in turn,

In the path from the car to the counterweight of second group of master's rope, the second main rope is wound on two wheel flutters of described second group of wheel flutter, described contrary wheel flutter and the described driving rope sheave in turn,

On described driving rope sheave and the described contrary projecting plane of axially seeing of wheel flutter, from described first group of wheel flutter one of described first group of master's rope turns to the part that takes turns to described driving rope sheave, turn to from described second group of wheel flutter one of described second group of master's rope and take turns to described part against wheel flutter and intersect.

6. according to each the described lift appliance in the claim 1 to 5, it is characterized in that,

Make the towing machine that drives the rope sheave rotation not have brake equipment, on contrary wheel flutter, have the brake equipment that is used to prevent rotation.

7. according to each the described lift appliance in the claim 1 to 5, it is characterized in that,

Driving rope sheave, contrary wheel flutter, wheel flutter and towing machine except that described contrary wheel flutter are arranged in the hoistway.

8. according to each the described lift appliance in the claim 1 to 5, it is characterized in that,

Be provided with second and drive rope sheave to replace contrary wheel flutter, described second drives rope sheave rotates towards the direction identical with described contrary wheel flutter by second towing machine different with described towing machine.

Images