KR100911079B1 - Elevator device - Google Patents

Abstract

In an elevator apparatus, the drive apparatus is arrange | positioned at the upper part inside a hoistway so that the rotating shaft of a drive sheave may become perpendicular. The upper part of the car is provided with a car hawk-like part to which the main rope is connected. In the upper part of the hoistway, a car return pulley for guiding the main rope to the car hawk reinforcement is arranged. The drive sheave and the car return pulley are arranged inside the area of the car in the vertical projection plane.

Description

Elevator device {ELEVATOR DEVICE}

This invention relates to the elevator apparatus by which the drive apparatus is arrange | positioned at the upper part in a hoistway.

In the conventional elevator apparatus, the 1st and 2nd rope connection parts are provided in the lower part of both sides of a car. The drive device for elevating the car is disposed at an upper portion in the hoistway. The main rope group wound on the drive sheave of the drive device includes a first main rope connected to the first rope connection part and a second rope connected to the second rope connection part (for example, a patent document 1).

Patent Document 1: WO03 / 074409

Problems to be Solved by the Invention

In the above conventional elevator apparatus, since the 1st and 2nd rope connection parts are provided in the lower part of the side surface of a cage | basket | car, it was difficult to ensure the space for performing main rope exchange work etc. in a narrow hoistway. Moreover, since the 1st and 2nd rope connection parts are provided in the lower frame of a cage | basket | car, a compression load acts on a cage | basket | car frame, and a reinforcement material, such as an inclination member, is required between the lower frame of a cage and a vertical frame. Done.

This invention is made | formed in order to solve the above subjects, and it aims at obtaining the elevator apparatus which can easily secure the space for the main rope exchange work, and can simplify the structure of a cage | basket | car frame. do.

Means for solving the problem

An elevator apparatus according to the present invention has a drive sheave, a drive device disposed above the hoistway so that the rotation axis of the drive sheave becomes vertical, a car cage resembling portion, and an elevator car lifted and lowered by the driving force of the drive device, similar to a counterweight. And a counterweight which is lifted and lowered by the driving force of the driving device, a car end connected to the car hawk reinforcement portion, and a counterweight end connected to the counterweight hawk reinforcement portion, which is disposed on the main rope wound on the drive sheave, and the upper part of the hoistway. A return pulley for guiding the main rope to the car hawk reinforcement, and a counterweight pulley disposed at the upper part of the hoistway, and leading the main rope to the counterweight hawk reinforcement unit, and the car hawk reinforcement unit is installed at the top of the car Pulley, Drive Sheave and Car Return Pulley, Vertical Projection Surface In and is disposed on the inside of the area of the car.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the elevator apparatus by Embodiment 1 of this invention.

FIG. 2 is a front view showing a state where the car of FIG. 1 is stopped on the uppermost floor.

FIG. 3 is an explanatory diagram showing a positional relationship between a driving device of FIG. 2 and a return pulley. FIG.

It is a front view which shows the elevator apparatus by Embodiment 2 of this invention.

It is explanatory drawing which shows the positional relationship of the drive apparatus of FIG. 4, and a 2nd car return pulley.

It is explanatory drawing which shows the positional relationship of the drive device of FIG. 4, a 1st car return pulley, and an inverted pulley.

It is a top view which shows the elevator apparatus by Embodiment 3 of this invention.

8 is a plan view of the elevator apparatus according to Embodiment 4 of the present invention.

9 is a plan view of an elevator apparatus according to Embodiment 5 of the present invention.

Preferred Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described with reference to drawings.

Embodiment 1.

1 is a plan view showing an elevator apparatus (elevator without a machine room) according to Embodiment 1 of the present invention, and FIG. 2 is a front view showing a state where the car of FIG. 1 is stopped on the uppermost floor. In the drawing, in the hoistway 1, the 1st and 2nd cage guide rails 2 and 3 and the 1st and 2nd counterweight guide rails 4 and 5 are provided. The car 6 is guided to the car guide rails 2 and 3 to move up and down the hoistway 1. The counterweight 7 is guided by the counterweight guide rails 4 and 5 to raise and lower the inside of the hoistway 1.

The car 6 has a front surface 6a provided with a car entrance and exit, a rear surface 6b facing the front surface 6a, and first and second side surfaces 6c and 6d facing each other. . The counterweight 7 is disposed on the side of the car 6 so as to face the second side surface 6d when located at the same height as the car 6.

The 1st car guide rail 2 opposes the 1st side surface 6c. The 2nd car guide rail 3 opposes the 2nd side surface 6d. Moreover, the 1st and 2nd cage guide rails 2 and 3 are mutually offset with respect to the depth direction of the cage | basket | car 6. That is, the 1st cage guide rail 2 is arrange | positioned behind the center of the depth direction of the cage | basket | car 6, and the 2nd cage guide rail 3 is the center of the depth direction of the cage | basket | car 6 It is located in front of it. Moreover, the 1st and 2nd cage guide rails 2 and 3 are arrange | positioned symmetrically about the center of gravity C of the cage | basket | car 6 in a vertical projection surface.

In addition, the 1st and 2nd cage guide rails 2 and 3 are arrange | positioned so that the centerline of those horizontal cross sections may become parallel to the width direction of the cage | basket | car 6. The 1st and 2nd counterweight guide rails 4 and 5 are arrange | positioned so that the centerline of these horizontal surfaces may become parallel to the depth direction of the cage | basket | car 6. As shown in FIG. In addition, as shown in FIG. 2, the car guide rails 2 and 3 and the counterweight guide rails 4 and 5 are approximately the same as the lower ends of the return pulleys 18, 19, 20 and 21 whose upper ends are described later. Located at or below height.

A support frame (not shown) is supported above the car guide rails 2 and 3 and the counterweight guide rails 4 and 5. The drive frame 13 which raises and lowers the cage | basket | car 6 and the counterweight 7 is supported by the support frame. The drive device 13 includes a drive device body 14 including a motor and a brake, and a drive sheave 15 rotated by the drive device body 14. As the drive apparatus 13, a thin hoisting machine whose axial dimension is smaller than the dimension of the direction orthogonal to an axial direction is used.

Moreover, the drive device 13 is arrange | positioned in the upper part of the hoistway 1 so that the rotating shaft of the drive sheave 15 may become vertical (it contains also perpendicularly.). In addition, the drive device 13 is arrange | positioned so that the drive sheave 15 may be located in the upper part of the drive device main body 14. Moreover, the drive sheave 15 is arrange | positioned inside the area | region of the cage | basket | car 6 in the vertical projection surface. In this example, the whole drive device 13 is arrange | positioned inside the area | region of the cage | basket | car 6 in a vertical projection surface.

A plurality of main ropes are wound around the drive sheave 15. The main rope includes a plurality of first main ropes 16 and a plurality of second main ropes 17. The car 6 and the counterweight 7 are suspended in the hoistway 1 in a 1: 1 roping manner by the first and second main ropes 16, 17.

In the upper part of the cage | basket | car 6, the 1st cage | basket | car-like part 6e to which the 1st main rope 16 is connected, and the 2nd cage | basket | ball-like part 6f to which the 2nd main rope 17 is connected are shown. It is installed. The 1st and 2nd cage | basket | car-like parts 6e and 6f are arrange | positioned at intervals mutually in the width direction and the depth direction of the elevator car 6.

On the upper part of the counterweight 7, the counterweight hawk resembling part 7a to which the 1st and 2nd main ropes 16 and 17 are connected is provided. The counterweight hawk resembling part 7a is arrange | positioned at the center part of the width direction of the counterweight 7.

The 1st main rope 16 has the 1st cage | basket | car end part connected to the 1st cage | basket | bar cage | bowl part 6e, and the 1st counterweight linker which is connected to the counterweight bobbin-like part 7a. The 2nd main rope 17 has the 2nd cage | basket | car end part connected to the 2nd cage | basket | bar cage resembling part 6f, and the 2nd counterweight coupler connected to the counterweight bobbin-like part 7a.

In the upper part of the hoistway 1, the 1st cage | basket return pulley 18 and the 2nd main rope 17 which guide | induce the 1st main rope 16 to the 1st cage | basket | car part 6e are the 2nd cage | basket | cars. First and second counterweight return pulleys 20 for guiding the second car return pulleys 19 and the first and second main ropes 16 and 17 to the counterweight portion 6f to the counterweight hawk portion 7a. 21, and a reverse pulley 22 for guiding the first main rope 16 from the drive sheave 15 to the first car return pulley 18 are arranged.

The 1st and 2nd car return pulleys 18 and 19 are supported by the support frame so that those rotation axes may become horizontal. The 1st and 2nd counterweight return pulleys 20 and 21 are supported by the support frame so that those rotation axes may become horizontal. The reversing pulley 22 is supported by the support frame so that the rotating shaft may be perpendicular or substantially vertical. The 1st and 2nd car return pulleys 18 and 19 and the inversion pulley 22 are arrange | positioned inside the area | region of the car 6 in a vertical projection surface.

The 1st and 2nd cage-like parts 6e and 6f are arrange | positioned at the equidistant position from the center of gravity of the cage | basket | car 6 in a vertical projection surface. Moreover, in the vertical projection surface, the 1st and 2nd cage | basket | car parts 6e, 6f and the center of gravity of the cage | basket | car 6 are arrange | positioned in a straight line. That is, in the vertical projection surface, the first and second car-like portions 6e and 6f are symmetrically disposed about the center of gravity of the car 6.

In such an elevator apparatus, since the 1st and 2nd cage | basket | car parts similar parts 6e and 6f are provided in the upper part of the cage | basket | car 6, the space for the replacement | operation work of the main ropes 16 and 17 is easy. In addition, the structure of the cage can be simplified.

Moreover, since the drive sheave 15, the 1st and 2nd cage return pulleys 18 and 19, and the inversion pulley 22 are arrange | positioned inside the area | region of the cage | basket | car 6 in a vertical projection surface, The plane area of the hoistway 1 can be made small.

Moreover, since the cage | basket | car 6 is suspended by 1: 1 roping, the structure is simplified and the rotation speed of the drive device 13 can be suppressed low. For this reason, even if the drive apparatus 13 is arrange | positioned in the hoistway 1, the elevator apparatus which is quiet with low vibration and low noise can be provided.

Furthermore, the car 6 can be hung stably at its center of gravity, and reaction force due to the unloading load can be prevented from acting on the car guide rails 2 and 3, thereby improving the riding comfort.

Here, FIG. 3 is explanatory drawing which shows the positional relationship between the drive apparatus 13 of FIG. 2, and the return pulleys 18-21. In the first embodiment the configuration and dimensions of the overhead dimension H ₀ (Fig. 2) to the thickness dimension and the return pulley (18 of the driving device 13 to a minimum to the top portion of the hoistway (1) from the uppermost floor surface In addition to reducing the diameter of ˜21, the positional relationship between the drive device 13 and the return pulleys 18 to 21 also becomes important.

That is, as shown in FIG. 3, while arranging the drive sheave 15 in the upper part of the drive main body 14, the upper end surface of the drive sheave 15 and the upper end of the return pulleys 18-21 are the same height. by placing the can overhead dimension H ₀ to a minimum.

Embodiment 2.

Next, FIG. 4 is a front view which shows the elevator apparatus by Embodiment 2 of this invention, FIG. 5: is explanatory drawing which shows the positional relationship of the drive apparatus 13 of FIG. 4 and the 2nd car return pulley 19, FIG. 6: is explanatory drawing which shows the positional relationship of the drive device 13 of FIG. 4, the 1st car return pulley 18, and the inversion pulley 22. As shown in FIG.

In this example, the second main of the peak T ₀ of the pitch diameter of the second car return pulley 19 (the diameter of the main rope 17 wound on the return pulley 19) and the groove of the drive sheave 15 is selected. rope 17 is a groove all the center C _1, the driving device 13 and the second car return pulley 19 so as to be positioned at the same height which are arranged wound.

Thereby, the fleet angle of the second main rope 17 with respect to the drive sheave 15 (entrance angle of the main rope 17 with respect to the surface including the groove of the drive sheave 15) is minimized. can do. When two second main ropes 17 are used, the fleet angles can be the same.

Moreover, the 1st car return pulley 18 is arrange | positioned at the same height as the 2nd car return pulley 19. As shown in FIG. The axis of rotation of the inverted pulley 22 is inclined with respect to the vertical line so as to minimize the fleet angle of the first main rope 16 entering the drive sheave 15 from the inverted pulley 22.

In this way, by minimizing the fleet angle, wear of the main ropes 16 and 17 and the drive sheave 15 can be suppressed, and the service life can be extended.

Embodiment 3.

Next, FIG. 7: is a top view which shows the elevator apparatus by Embodiment 3 of this invention. In this example, the counterweight 7 is disposed behind the car 6 so as to face the back surface 6b when located at the same height as the car 6.

Thus, also in the layout which arrange | positions the counterweight 7 behind the cage | basket | car 6, the effect similar to Embodiment 1 can be acquired.

Embodiment 4.

Next, FIG. 8 is a top view which shows the elevator apparatus by Embodiment 4 of this invention. In the figure, a plurality of main ropes 31 are wound around the drive sheave 15. In the upper part of the cage | basket | car 6, the cage | basket | car case part 6g to which the main rope 31 is connected is provided. 6 g of cage | basket | car-like parts are substantially overlapped with the center of gravity of the cage | basket | car 6 in a vertical projection surface.

On the upper part of the hoistway 1, the cage return pulley 32 which guides the main rope 31 to the cage-like portion 6g, and the balance weight return which guides the main rope 31 to the counterweight-like portion 7a. The pulley 33 is arranged. The counterweight 7 is disposed on the side of the car 6. The drive apparatus 13 is arrange | positioned above the corner part of the cage | basket | car 6 formed by the back surface 6b and the 1st side surface 6c.

Thus, even in the layout which does not divide the main rope 31 into two path | route, since the cage | basket | car-like part 6g is provided in the upper part of the cage | basket | car 6, it is for the replacement work of the main rope 31. The space can be easily secured and the structure of the cage can be simplified.

Moreover, since the drive sheave 15 and the cage | basket return pulley 32 are arrange | positioned inside the area | region of the cage | basket | car 6 in a vertical projection surface, the plane area of the hoistway 1 can be made small.

Moreover, since the cage | basket | car 6 is suspended by 1: 1 roping, the structure is simplified and the rotation speed of the drive device 13 can be suppressed low. For this reason, even if the drive apparatus 13 is arrange | positioned in the hoistway 1, the elevator apparatus which is quiet with low vibration and low noise can be provided.

Embodiment 5.

Next, FIG. 9 is a top view which shows the elevator apparatus by Embodiment 5 of this invention. In this example, the counterweight 7 is disposed behind the car 6 so as to face the back surface 6b when located at the same height as the car 6. Moreover, the drive device 13 is arrange | positioned above the corner part of the cage | basket | car 6 formed by the front surface 6a and the 1st side surface 6c.

Thus, also in the layout which arrange | positions the counterweight 7 at the back of the cage | basket | car 6, the same effect as Embodiment 4 can be acquired.

In addition, three or more places of car cage resembling parts may be sufficient. That is, you may provide a 3rd cage | basket | car-like part and a 4th cage | basket | car-like part.

Moreover, a main rope may be a rope of a normal circular cross section, or a rope of a belt shape.

In addition, the counterweight may be divided into a plurality of and arranged.

Moreover, you may make it raise and lower a common car by a some drive apparatus. Also in this case, the same effect as the above embodiment can be obtained by arranging all of the drive sheaves and the car return pulley inside the area of the car in the vertical projection plane, and by placing the car resembling part on the upper part of the car. have.

Thus, this invention can be utilized for the elevator apparatus by which the drive apparatus is arrange | positioned at the upper part in a hoistway.

Claims (5)

A drive device having a drive sheave and disposed above the hoistway so that the axis of rotation of the drive sheave is vertical; An elevator car having a car cage resembling part and being lifted by a driving force of the drive device, Counterweight having a counterweight resembling portion, which is lifted by the driving force of the drive device, A car guide rail for guiding the car to move up and down in a hoistway; Counterweight guide rails for elevating in the hoistway by guiding the counterweight, A main rope wound on the drive sheave, having a car end connected to the car hawk reinforcement portion, and a counterweight end connected to the counterweight hawk resemblance; A car return pulley disposed at an upper portion of the hoistway and guiding the main rope to the car resembling a car; A counterweight return pulley disposed at an upper portion of the hoistway and leading the main rope to the counterweight resemblance; The car resembling part is installed on the upper part of the car, The upper end of the car guide rail and the counterweight guide rail are located at the same height or less than the lower end of the car return pulley and the counterweight return pulley, The drive sheave and the car return pulley are arranged inside the area of the car in a vertical projection plane. The method of claim 1, The car hawk resembling portion includes first and second car hawk resembling portions disposed on opposite sides with respect to the center of gravity of the car in a vertical projection plane, The main rope includes a first main rope connected to the first car resembling part, and a second main rope connected to the second car resembling part, The car return pulley includes a first car return pulley for guiding the first main rope to the first car cab and a second car return pulley for guiding the second main rope to the second car hawk. Including, An elevator apparatus, wherein an inverting pulley for guiding the first main rope from the drive sheave to the first car return pulley is disposed above the hoistway. The method of claim 2, The drive device and the second car return pulley are arranged so that the center of all grooves of the drive sheave on which the peak diameter of the second car return pulley and the second main rope are wound are located at the same height. Elevator device. The method of claim 2, An elevator apparatus in which the rotation axis of the inversion pulley is inclined with respect to the vertical line so as to reduce the fleet angle of the first main rope entering the driving sheave from the inversion pulley. The method of claim 1, An upper end surface of the drive sheave and an elevator car pulley and an upper end of the counterweight return pulley are arranged at the same height.

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