WO2006033160A1 - Machine room-less elevator apparatus - Google Patents

Abstract

A machine room-less elevator apparatus which enables to reduce an installation space and whose cost can be reduced. The elevator apparatus has an elevator car (4), a counterweight (5), a guide rail (6) for the car, a guide rail (7) for the counterweight, a rope (8) for suspending the car and the counterweight, a sheave (9a) placed at an elevator shaft top section (3) and over which the rope (8) is passed, a motor (9b) for driving the sheave, and a hoist (9) for lifting and lowering the car and the counterweight. The elevator apparatus further has car sheaves (19, 20) arranged at the elevator shaft top section (3), a car suspension sheave (13) provided under the car (4), a counterweight sheave (30) provided at the elevator shaft top section (3), and a counterweight suspension sheave (15) provided at the counter weight (5). The rope (8) is connected at one end to a position near the center of the upper part of the car, passed over a hoist sheave (9a) after it is passed over the car sheaves (19, 20) and the car suspension sheave (13), and suspended via the counterweight suspension sheave (15) and the counterweight sheave (30). The other end is connected to a position near the center of the upper part of the counterweight (5).

Description

 Specification

 Machine room-less elevator device

 Technical field

 [0001] The present invention relates to a roving system for a large-capacity machine room-less elevator apparatus having a large load capacity.

 Background art

 FIG. 6 is a plan view of a hoistway showing a machine room-less elevator device of a conventional 2: 1 roving system, and FIG. 7 is an elevation view of the hoistway. In the figure, 1 is the hoistway, 2 is the pit part of the hoistway, 3 is the top of the hoistway, 4 is the car that moves up and down in the hoistway 1, 5 is the hoistway in the hoistway 1 opposite to the force 4 6 is a force guide rail that regulates the horizontal movement of the basket 4, 7 is a counterweight guide rail that regulates the horizontal movement of the counterweight 5, and 8 is a counterweight with the basket 4. 9 is a thin hoisting machine that lifts and lowers by driving the weight 5 and the counterweight 5 via the rope 8. The hoisting machine 9 includes a sheave 9a around which a rope 8 is wound, a motor 9b that drives the sheave, and a speed reducer 9c, and is disposed on the wall side of the hoistway top 3. 10 is a lifting machine base that fixes the lifting machine 9, 11 is a lifting metal that suspends the lifting machine base 10, 12 is two supporting beams that suspend the lifting metal 11, and the wall of the hoistway 1 or the building beam (Not shown) so as to be horizontal and parallel. 13 is a car suspension car arranged at the lower left and right ends of the car 4, and 14 is a car suspension that is integrated with the car 4 at the lower part of the car 4, and supports the left and right car suspension cars 13. Car support frame, 15 is one counterweight suspension car installed in the upper center of the counterweight 5, 16 is a counterweight side rope stop located at a part of the lifting machine base 10, and 17 is The cage rope retaining beam 18 is arranged near and parallel to the wall of the hoistway 1 in the opposite direction to the machine 9, and 18 is a cage side rope retaining portion installed on the cage rope retaining beam 17.

[0003] Next, the operation will be described. When the hoisting machine 9 is driven by the activation of the motor 9a, the sheave 9b rotates and the rope 8 moves by traction. The movement of the rope 8 is transmitted to the two left and right car suspension vehicles 13 and the central one counterweight suspension vehicle 15, and the cage 4 and the counterweight 5 that are integrated with them are respectively upside down, with a rope speed of 1Z2 It moves up and down at a speed of. That is, it constitutes a machine room-less elevator device of a 2: 1 roving system.

[0004] Patent Document 1: International Publication No. WO01Z042121

 Patent Document 2: Japanese Unexamined Patent Publication No. 2000-153975

 Disclosure of the invention

 Problems to be solved by the invention

[0005] The conventional machine room-less elevator device is configured as described above! Therefore, in a large capacity elevator with a large load capacity, the capacity of the hoisting machine becomes larger and larger, and accordingly the hoisting machine is installed. The supporting members are also large, and the installation space for storing them is required at the top of the hoistway, and the area and height of the hoistway top increases, and as a result, the top of the hoistway protrudes from the roof of the building There was a bad appearance of the building. In addition, there was a problem that the product cost and construction cost increased due to the increase in the size of the lifting machine and the lifting support member.

 [0006] The present invention has been made to solve the above-described problems, and provides a machine room-less elevator apparatus capable of reducing the installation space and reducing the construction cost and the product cost. With the goal.

 Means for solving the problem

[0007] A machine room-less elevator device according to the present invention includes a counterweight that moves up and down in the hoistway, a counterweight that moves up and down in the opposite direction, and a force guide rail that restricts horizontal movement of the force. , Balance Balance that regulates the horizontal movement of the weight! / Gage weight guide rail, rope that suspends the balance weight with force, and rope that is placed on the top of the hoistway. A car that has a motor that drives the car and sheave, and has a lifting machine that lifts and lowers the counterweight with force by rotating the sheave. The rope is equipped with a car, a car suspension car installed at the bottom of the force cage, a counterweight return car installed at the top of the hoistway, and a counterweight suspension car installed at the counterweight. Near the center of the top It is connected and wound around a lifting sheave at the top of the hoistway via a car return car at the top of the hoistway and a car suspension car at the lower part of the lift, and further a counterweight suspension car and a counterweight return car at the top of the hoistway. And the other end is connected near the center of the top of the counterweight to form a 3: 1 roving system. It is to be formed.

 [0008] In addition, the force return car is a car side car placed near the center of the car at the top of the hoistway and a car on the hoistway wall side arranged at the hoistway wall side of the top of the hoistway. It consists of a return wheel, and the suspension position on the plane of the upper part of the car by the car-side return car is arranged so as to be the center of gravity when no force is applied or when the load is maximum.

 [0009] In addition, the force return wheel is fixed to the force return wheel support beam installed on the support beam that suspends the lifting machine base.

 [0010] Further, the counterweight return vehicle is fixed to the counterweight return vehicle support beam installed on the support beam that suspends the lifting machine base.

 [0011] In addition, the car suspension car is arranged at two places on the left and right on the horizontal line passing through the position of the center of gravity of the car at the lower part of the car.

[0012] In addition, the rotation axes of the car suspension car and the car return car are arranged substantially in parallel when seen in a plan view.

 [0013] In addition, one counterweight suspension vehicle is arranged on the upper portion of the counterweight.

[0014] In addition, a plurality of counterweight suspension vehicles are arranged below the counterweight.

[0015] Furthermore, a scale device is installed at the cage rope stop portion to which the rope above the force cage is connected.

 The invention's effect

 [0016] According to the present invention, even in a machine room-less elevator with a large load capacity, the axial load and torque applied to the lifting machine are reduced, the lifting machine is downsized, and the installation space at the top of the hoistway is reduced. It is possible to reduce the installation. Therefore, a large-capacity machine room-less elevator can be driven by a small lifting machine supported by a small lifting machine base, reducing the construction cost and reducing the equipment cost due to the reduced space of the compact structure. Down is possible. In addition, the height of the upper machine can be used to suppress the inclination of the rope at the upper part of the car and the upper part of the counterweight. It is possible to provide an elevator apparatus that can respond.

 Brief Description of Drawings

FIG. 1 is a plan view of a hoistway showing an elevator apparatus according to Embodiment 1 of the present invention. FIG. 2 is an elevation view of the upper part of the hoistway showing the elevator apparatus according to Embodiment 1 of the present invention.

 [Fig. 3] Fig. 3 is an enlarged view showing a weighing device provided on a beam on the car of the elevator apparatus according to Embodiment 1 of the present invention.

 [Fig. 4] Fig. 4 is an elevational view when the counterweight is elevated as seen from the direction of arrow A in Fig. 2 showing the elevator apparatus according to Embodiment 2 of the present invention.

 [Fig. 5] Fig. 5 is an elevational view when the counterweight is lifted as seen from the direction of arrow A in Fig. 2 showing the elevator apparatus according to Embodiment 3 of the present invention.

 FIG. 6 is a plan view of a hoistway showing a conventional 2: 1 roving elevator apparatus.

FIG. 7 is an elevation view of a hoistway showing a conventional 2: 1 roving elevator apparatus. Explanation of symbols

1 hoistway

2 Pit part

3 Top of hoistway

4 baskets

 5 Counterweight

 6 Car guide guide

 7 Guide rail for counterweight

 8 rope

 9 Hoisting machine

 9a sheave

 9b motor

 9c reducer

 10 Hoisting machine stand

 11 Suspension

 12 Support beam

13 Car suspension Car suspension frame support frame

 Counterweight suspension car

 Weight side rope stop

 Cage rope

 Car side leash stop

 Hoistway wall side basket return car cage side basket return car

 Cage return car support beam

 Basket upper beam

 Cage rope stop

 Suspension spring

 Spring seat

 Nut

 Car side rope shirt kull adjustment nut

 Weighing device

a 枰 Device detection switch b First lever

c Second leper

d Biasing spring

 Counterweight car

 Balance weight return car support beam Balance weight suspension frame

Balanced weight rope stop Balanced weight suspension spring Balanced weight side rope shirtle 2 Balanced weight suspension cars Balanced weight rope stop 38 Counterweight suspension car

 39 Counterweight counterweight part

 BEST MODE FOR CARRYING OUT THE INVENTION

In order to explain the present invention in more detail, a machine room-less elevator device of a 3: 1 roving system will be described with reference to the drawings.

 Example 1

 FIG. 1 is a plan view of a hoistway showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is an elevation view of the upper part of the hoistway showing the elevator apparatus according to Embodiment 1 of the present invention, and FIG. It is an enlarged view which shows the scale apparatus provided in the force beam of the elevator apparatus in Example 1 of this.

In the figure, 1 is a hoistway, 2 is a pit part of the hoistway, 3 is the top of the hoistway, 4 is a car that moves up and down in the hoistway 1, 5 is raised and lowered in the hoistway 1 in the opposite direction to the force 4 Balance weight, 6 is a guide rail for the car that regulates the horizontal movement of the car 4, 7 is a guide rail for the counterweight that regulates the horizontal movement of the counterweight 5, 8 is a suspension of the car 4 and the counterweight 5. The rope 9 is a thin hoist that drives the car 4 and the counterweight 5 via the rope 8 to move up and down. The hoisting machine 9 includes a sheave 9a around which a rope 8 is wound, a motor 9b that drives the sheave, and a speed reducer 9c, and is disposed on the wall side of the hoistway top 3. . 10 is a hoisting machine base that fixes the hoisting machine 9, 11 is a hanging metal that hangs the hoisting machine base 10, 12 is two supporting beams that suspend the hoisting 11 and the wall of the hoistway 1 or the building beam ( (Not shown) so that it is horizontal and parallel. Reference numeral 13 denotes two car suspension cars arranged at the lower left and right ends of the car 4, which are arranged on a horizontal line passing through the center of gravity of the car 4. 14 is constructed integrally with the car 4 at the lower part of the car 4, and a car suspension car support frame for supporting the left and right two car suspension cars 13, 15 is a counterweight suspension installed at the upper center of the counterweight 5. Car, 19 is a hoistway wall-side basket return car placed on the hoistway wall side of hoistway top 3, and 20 is a car-side car return car placed near the center of car 4 at hoistway top 3 These two car return wheels 19 and 20 are arranged in a straight line in a plane, and the car hanging position on the upper surface of the car 4 by the car side car return car 20 is when no force is applied or when the maximum load is applied. It is arranged so that it is almost at the center of gravity. 19a is the shaft of the hoistway wall side car return wheel 19 and 20a is the car side car The rotary shafts of the return wheel 20 are arranged so that both of the rotary shafts 19a and 20a are substantially parallel to the two left and right car suspension wheels 13 when viewed in plan. 21 is supported by two support beams 12 at both ends, and both of the above-mentioned car return cars 19 and 20 are supported by a car return car support beam, 22 is a car upper beam provided at the upper part of the car 4, 23 is a cage rope stop installed at the center of the car upper beam 22, 24 is a car suspension spring that supports the weight of the car 4, 25 is a spring seat that stops the car suspension spring 24, and 26 is a nut that stops the spring seat 25. 27 is a car-side rope shirt which is connected to one end of the rope 8 and elastically connected to the car rope stop 23 of the car upper beam 22 by a car suspension spring 24, and uses the height of the required lifting machine. It is installed with the fall down to the specified value (vertical fall down 8.5 degrees or less). 28 is an adjustment nut attached to the lower end of the car-side rope shirt 27, 29 is installed at the lower part of the car upper beam 22, and changes in the load on the car 4 are adjusted on the car-side rope shirt 27 29a is a weighing device detection switch provided in the weighing device 29, 29b is in contact with the adjustment nut 28 at the lower end of the car-side rope shirt 27 and is attached to the car-side rope shirt 27. A first lever 29c for detecting a change in the applied load is provided between the scale device detection switch 29a and the first lever 29b, and a second lever for transmitting the operation of the first lever 29b to the detection switch 29a. It ’s one of the best. A biasing spring 29d is provided between the second lever 29c and the scale device 29, and is used to constantly and lightly contact the first lever 29b with the adjusting nut 28. 30 is one counterweight return car installed at the position corresponding to the upper part of the counterweight 5 at the top 3 of the hoistway, 31 is supported between the two support beams 11, and supports the counterbalance and weight return car 30. Balance, weight return car support beam, 32 is a counterweight suspension frame provided at the upper part of the counterweight suspension vehicle 15, 33 is a balance, weight balance provided at the center of the weight suspension frame 32 Tension stop, 34 is the balance ヽ Weight suspension spring, 35 is connected to the other end of the rope 8 and is balanced to the balance weight rope stop 33, V is elastically supported via the weight suspension spring 34, the weight side It is a rope shirt. In other words, the car 4 is hung by the rope 8 via the two left and right car suspension cars 13 under the car, the two car return cars 19, 20 and the car rope stopper 23, and the counterweight 5 is one. The counterweight suspension car 15, one counterweight return wheel 30, and the counterweight suspension bar 33 are suspended via the counterweight 33, and the load on the car 4 changes the load load on the car-side rope shirt 27 It is equipped with a weighing device 29 that detects 24 deformations. Next, the operation will be described. When Hoisting Machine 9 operates, Rope 8 moves by traction. The movement of the rope 8 is performed by two cages on the left and right 13, two force return vehicles 19, 20, one counterweight suspension vehicle 15, and one counterweight return vehicle 30 and a car side rope. It is transmitted to the stop 23 and the weight side rope stop 34, and the force 4 and the counterweight 5 are moved up and down in the opposite direction. In other words, the car 4 and the counterweight 5 both constitute a so-called 3: 1 roving system that is suspended by three ropes.

 Example 2

 FIG. 4 is an elevational view when the counterweight is elevated as seen from the direction of arrow A in FIG. 2, showing the elevator apparatus according to Embodiment 2 of the present invention.

 36 is a balance weight suspension car installed on the left and right sides of the upper part of the counterweight 5, 37 is a counterbalance, and a balance 5 is installed at the center of the upper part of the weight 5, and the weight is fixed to the weight.

 That is, the other end of the rope 8 is connected to the counterweight 9 from the sheave 9a through the counterweight 5 via the two counterweight suspension vehicles 36 on the left and right of the upper part 36, and the counterbalance wheel 30 at the top 3 of the hoistway. Balance weight 5 A rope 8 is arranged on the balance weight rope stop 37 in the upper center of the balance weight 5 and the balance weight 5 is suspended. As a result, a 3: 1 roving system similar to that of the first embodiment is configured.

 Example 3

 FIG. 5 is an elevational view when the counterweight is elevated as seen from the direction of arrow A in FIG. 2 showing the elevator apparatus according to Embodiment 3 of the present invention.

 Reference numeral 38 denotes two counterweight suspension vehicles installed on the left and right sides of the lower part of the counterweight 5, and reference numeral 39 denotes a counterweight suspension unit installed in the upper center of the counterweight 5.

 That is, the other end of the rope 8 is connected to the counterweight 9 from the sheave 9a of the lifting machine 9 via the two counterweight suspension vehicles 39 at the bottom left and right, and the counterbalance wheel 30 at the top 3 of the hoistway, Balance weight 5 A rope 8 is arranged on the counterweight 39 at the center of the upper part of the balance weight, and the balance weight 5 is suspended. As a result, a 3: 1 roving system similar to that of the first embodiment is configured.

 Industrial applicability

[0024] As described above, the present invention provides a large-capacity machine room-less elevator apparatus having a large load capacity. Suitable for use in roving systems

Claims

The scope of the claims  [1] A counterweight that moves up and down in the hoistway, a counterweight that moves up and down in the opposite direction, a guide rail for the car that restricts horizontal movement of the car, and a balance that regulates horizontal movement of the counterweight There is a guide rail for weight, a rope for suspending a counterweight with force, a sheave on which the rope is wound, and a motor that drives the sheave, and by rotating the sheave. In a machine room-less elevator device equipped with a cage and a lifting machine that lifts and lowers a weight through a rope,  To the basket return car installed at the top of the hoistway, the car suspension car installed at the bottom of the force cage, and the balance installed at the top of the ascending / descending road! The rope is equipped with an installed balance! /, A weight suspension car, and one end of the rope is connected near the center of the upper part of the force cage. It is wrapped around a hoisting sheave at the top of the hoistway via a suspension car, and further suspended via a counterweight suspension car and a counterweight wheel at the top of the hoistway, with the other end at the center of the upper part of the counterweight. A machine room-less elevator device that is connected to the vicinity and constitutes a 3: 1 rolling system. [2] The force return car consists of a car side car return car located near the center of the car at the top of the hoistway, and a hoistway wall side car return car located on the hoistway wall side of the hoistway top. 2. The machine according to claim 1, wherein the suspension position on the plane of the upper part of the car by the car-side car return vehicle is arranged so as to be a center of gravity when no force is applied or when the car is loaded at maximum. Roomless elevator equipment.  [3] The machine room-less elevator device according to claim 2, wherein the force return wheel is fixed to the force return wheel support beam installed on the support beam for suspending the lifting machine base. [4] The machine room-less elevator device according to claim 3, wherein the counterweight return vehicle is fixed to the counterweight return vehicle support beam installed on the support beam that suspends the lifting machine base. 5. The machine room-less elevator device according to claim 2, wherein the suspension car is disposed at two positions on the left and right of the horizontal line passing through the position of the center of gravity of the cage at the lower part of the cage. [6] The machine room-less elevator according to any one of claims 2 to 5, characterized in that the rotary shafts of the power suspension wheel and the basket return wheel are arranged substantially parallel in plan view. apparatus. [7] The counterweight suspension vehicle is arranged at the top of the counterweight. The machine room-less elevator device according to Item 6. 8. The machine room-less elevator device according to claim 6, wherein a plurality of counterweight suspension vehicles are arranged below the counterweight. [9] The machine room-less elevator device according to [6], wherein a scale device is installed at a force rope stop portion to which a rope at an upper portion of the force cage is connected.