JPS61203086A - Winding machine for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a hoisting machine for elevators, and in particular to a hoisting machine for elevators and non-operators that uses a speed reducer that reduces the speed by one step using a flat gear and an upper shaft gear. It is related to.

[Background of the invention]

Conventionally, an elevator hoisting machine using a parallel shaft gear as a reducer has a drive motor on one side of the reducer and a sheave on the other side, as shown in Japanese Utility Model Application Publication No. 56-80370. However, the brake device was provided on the end side of the drive motor.

As a result, the distance from the end of the sheave to the end of the brake system became long, and a large machine room was required.

It has therefore been proposed to arrange the drive motor and sheave on the same side of the reducer to reduce the overall dimensions. In this case, the overall length can be shortened to some extent, but since the drive motor and sheave are adjacent to each other, they must be installed apart from each other so that the drive motor and sheave trains do not interfere with each other. If this happens, the sheave axis will naturally be separated from the motor axis, so it is necessary to add an idle gear in the reducer to ensure the distance between the two axes. Second: It is inevitable that the input reducer will be complicated.

[Purpose of the invention]

The present invention has been made in view of the above points, and an object of the present invention is to provide an elevator hoisting machine that can reduce the installation area without complicating the structure.

[Summary of the invention]

In order to achieve the above object, the present invention has a drive motor attached to a reducer box of a reducer fixed to a machine base, a motor shaft protruding into the box, and a sheave axle inserted into the reducer box from the side opposite to the drive motor. A small-diameter gear is fixed to the motor shaft protruding into the reducer box, a large-diameter gear is fixed to the sheave shaft, and both gears are engaged with each other, and a brake device is connected to the anti-deceleration of the sheave. It was decided to place it on the side of the machine.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

7′ is supported.

A main rope 7 is wound twice around the sheave 5 and diversion wheel 6 of the hoisting machine 3, one end of the main rope 7 is wrapped around a pulley 8P of a car 8, and the other end is wrapped around a pulley of a counterweight 9 (not shown). It is fixed to the floor 2F of the machine room 2 through a 2:10-bing.

In addition to the hoisting machine 3, the machine room 2 also includes a banner 10 for detecting elevator overspeed and a floor controller 11 for controlling landing. The hoisting machine 3 has a drive motor 14 arranged on one side of a reduction gear box 13 fixed on a machine base 12, and a sheave 5 and a brake device 22 arranged on the opposite side. The electric shaft 148 of the drive motor 14 protrudes into the reducer box 13a,
A small diameter gear 16 is fitted and fixed to the protruding end. The drive motor 14 is flange-mounted to the reduction gear box 13a.

Further, the sheave 5 is fitted and fixed to the sheave shaft 15, and the reducer box 13
On the a side, a bearing 17, a lid 18 that supports the bearing 17, and a holding lid 24 that fixes the bearing are provided.A large diameter gear 19 that meshes with the small diameter gear 16 is fixed to the shaft end, and the lid 18 is attached to the reducer box. It is fitted and supported in the opening of 13H. Further, the other end of the sheave shaft 15 is provided with a bearing 20 and a bearing stand 21 that supports the bearing 20i, which is fixed to the machine base 12 via a tooth contact adjustment liner 23, and covers 25. A cover 26 is provided.

The brake device 22 is disposed on the outer periphery of the cable-free groove 5S on the side of the bearing stand 21 from the center of the sheave 5, and is supported by the curved portion of the bearing stand 21. An opening 13H larger than the large-diameter gear 19 is provided on the sheave 5 side of the reducer box 13a, so that the large-diameter gear 19 can be assembled. Therefore, the reducer box 13a is made of one piece instead of being divided into two pieces. The drive motor 14 is positioned above the center of the sheave 5 to avoid interference with the governor 10 and floor controller 11 and to ensure a passage inside the machine room. With such a structure, the reducer 13 of the hoist 3 can be achieved with one-stage reduction, which simplifies the structure of the hoist 3 and at the same time reduces the sheave 5.
The dimension between the center of the drive motor 14 and the end face of the drive motor 14 can be reduced, and the machine room 2 can be arranged without expanding. Further, since the drive motor 14 is located higher than the center of the sheave 5, the lower part of the drive motor 14 can be used as a passage, and the floor controller 11. Since they do not interfere with the governor 10, they can be easily placed in the machine room 2. Further, by providing the reduction gear box 13a with an opening 13H larger than the outer diameter of the large-diameter gear, the reduction gear box 13a can be manufactured as a single piece, and the number of man-hours can be reduced. In addition, since the hoisting machine 3 can have a bilaterally symmetrical structure when viewed from above, there are advantages such as the deflection wheel 6 can be placed on either the left or the right.

〔Effect of the invention〕

According to the present invention, it is possible to obtain an elevator hoist that can reduce the installation area without complicating the structure.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view showing the installation state of the elevator hoisting machine of the present invention, Fig. 2 is a sectional view taken along line II in Fig. 1, Fig. 3 is a sectional view taken along line II in Fig. 2, and Fig. 4 The figure is a sectional view taken along line 11 in FIG. 1. 3...Hoisting machine, 5...Sheave, 7...Main rope, 13...
・Reduction gear, 14... Drive motor, 148... Motor shaft, 15... Sheave shaft, 16... Small diameter gear, 17.2
0...Bearing, 18...Lid, 19...Large diameter gear, 2
2...Brake device.

Claims (1)

[Scope of Claims] 1. A drive motor, a reducer that reduces the rotational speed of the drive motor by one step, a sheave that is connected to the output side of the reducer and drives a main rope around it, and the drive motor In the elevator hoisting machine, the drive motor is provided with a brake device for stopping rotation from the machine base, and the gear shaft in the reduction gear is arranged parallel to the motor shaft of the drive motor and the sheave shaft of the sheave. The motor shaft is attached to a reducer box of a reducer fixed to the reducer box so that the motor shaft protrudes into the reducer box, and the sheave axle is made to protrude into the reducer box from the side opposite to the drive motor, and the motor shaft is made to protrude into the reducer box. A small-diameter gear is fixed to the electric motor shaft, a large-diameter gear is fixed to the sheave shaft, and the two gears are engaged with each other, and the brake device is disposed on the opposite side of the sheave to the reduction gear. Upper machine. 2. The hoisting machine for an elevator according to claim 1, wherein the electric motor shaft is aligned with the sheave shaft in a plane. 3. The elevator hoisting machine according to claim 1, wherein the brake drum of the brake device is a cable-free groove formed in the sheave. 4. A drive motor, a reducer that reduces the rotational speed of the drive motor by one step, a sheave that is connected to the output side of the reducer and drives the main rope around it, and a brake that stops the rotation from the drive motor. In an elevator hoisting machine, the gear shaft in the reducer is arranged parallel to the motor shaft of the drive motor and the sheave shaft of the sheave, wherein the drive motor is fixed to a machine base. is attached to the reducer box so that the motor shaft protrudes into the reducer box, and the sheave axle is made to protrude into the reducer box from the side opposite to the drive motor, and the motor shaft protrudes into the reducer box. A small-diameter gear is fixed to the sheave shaft with a large-diameter gear engaged with the two gears, and the brake device is arranged on the opposite side of the sheave to the reduction gear, and the sheave is sandwiched between the two gears and the small-diameter gear is fixed to the sheave shaft. a first bearing whose side is fixed to the reducer box;
A hoisting machine for an elevator, characterized in that the other side is supported by a second bearing provided upright on the machine base. 5. The hoisting machine for an elevator according to claim 4, wherein a lower part of the brake device is supported by the machine base, and an upper part is supported by the second bearing.