JP3141180B2 - Governor for elevator and method of assembling the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator governor for detecting an abnormal speed of an elevator car and a method of assembling the governor.

[0002]

2. Description of the Related Art Elevators are required by law to provide various electrical and mechanical safety devices. The elevator governor is a mechanical safety device installed in the machine room at the top of the same building as the hoist, and the governor rope is wound between the elevator governor pulley and the governor rope tensioning pulley at the bottom of the building. Some of which are fixed to the car. The governor rope also moves up and down as the car moves up and down, and the movement of the car is changed to rotary motion by pulleys via the governor rope. The electric current of the electric motor of the hoist is cut off, the electromagnetic brake is operated to stop the car, and the catch weights hold the governor rope to operate the car stopping mechanism.

A conventional elevator governor is disclosed in, for example, JP-A-63-101292.
In this structure, pulleys, pendulums, overspeed switches, and other mechanical parts are incorporated in a frame having a frame structure.

[0004]

In a conventional governor, various components of a mechanical section such as a pulley to be incorporated in a frame are very heavy and workability is poor, so that automation is desired. The direction of assembling into the frame is not constant, and automation of assembling is very difficult.

An object of the present invention is to improve the productivity of an elevator governor assembly.

[0006]

SUMMARY OF THE INVENTION The above object is achieved by a pulley governor rope to lift speed and synchronized rotation of the car is changing the speed descending該昇wound on rotational speed, the abnormality by centrifugal force according to the rotational speed of the pulley elevator equipped with detecting the speed controls the overspeed switch is rotatably supported on the pulley pendulum, a mechanism comprising a pulley shaft for rotatably supporting the pulley, and a frame for holding the mechanism section in use the governor, the frame has a height greater than the mechanical portion
Ri Do from the reference frame and the cover frame consisting of a plate material having a width, said reference frame and / or Kabafu
The frame has a spacer portion with upper and lower ends bent, and the
The reference frame and the cover frame are
For elevators, characterized in that they are connected and held.
It is achieved by Na.

[0007]

[0008] The above object is to raise and lower the car speed and
A rotating governor rope is wound and the elevating speed is changed to the number of revolutions.
Pulley and the centrifugal force according to the rotation speed of the pulley.
Detects abnormal speed and controls the overspeed switch to control the pulley
A pivotally supported pendulum and the pulley are rotatably supported.
A mechanism including a pulley shaft, and a frame holding the mechanism.
A method for assembling an elevator governor having a
It is made of a plate with a height and width greater than the mechanism
Ri, a reference frame erected the pulley shaft, the pulley
Place the horizontal part so that the re-shaft end is at the top , mount the mechanism part on the reference frame almost vertically from above , and attach the cover frame to the reference frame via the spacer part.
This is achieved by fixing .

[0009]

According to the present invention, the height is higher than the governor mechanism.
Plate-shaped reference frame and cover frame
Frame with a spacer, and the reference frame and cover frame
Structure that can hold the governor mechanism between the
Since the reference frame is placed horizontally and the cover frame side becomes a space, the space for component installation is expanded, and various parts of the mechanism are stacked in order from the top and finally the cover frame is fastened from one direction. Assembly becomes possible, thereby facilitating automatic assembly, saving labor and reducing work time, and improving assembly productivity.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an elevator governor according to an embodiment of the present invention before a cover frame is fastened.

FIG. 2 is a perspective view showing a state where assembly of the elevator governor according to the embodiment of the present invention is completed.

First, the configuration of the governor for an elevator will be described.

As shown in FIG. 1 and FIG. 2, a governor for an elevator is composed of a pulley 21 on which a governor rope 20 is wound, the part of which is fixed to a car and which moves up and down in synchronization with the car.
A pulley shaft 22 that supports the pulley 21, a pair of pendulums 23 that expand in conjunction with the speed of the car, and a pendulum 23 that expands due to the abnormal speed of the car cuts off the drive power of the hoist. The switch 24, the catch weight 25 holding the governor rope 20, and the catch weight 25 are held in a steady state in order to operate the stopping mechanism of the car when the electromagnetic brake attached to the hoist fails or the hoist rope is cut. And a frame for fixing these mechanisms.

In such an elevator governor,
We devised a frame with a left-right split structure that sandwiches the mechanism from both sides.

FIG. 3 is a perspective view of an elevator governor frame according to an embodiment of the present invention.

As shown in the drawing, the frame is divided into a reference frame 11 having a reference surface at the time of assembly and a cover frame 12 serving as a lid. The reference frame 11 has a spacer portion 13 that rises vertically from the assembly reference plane, and the cover frame 12 can be fastened with bolts.

Next, a method of assembling the governor for the elevator will be described.

FIG. 4 is a perspective view showing the order of assembling the governor using the governor frame shown in FIG.

As shown in the figure, a reference frame 11 and
With the frame structure divided into the cover frame 12 having the role of a lid, a vertical assembly method can be used.
In this assembling method, the reference frame 11 is placed sideways so that the spacer 13 faces upward. At this time , the pulley 21 is placed on the pulley shaft 22 rising from the reference surface, with the lower surface serving as an assembly reference surface. Insert the components from other directions in the same way, and also assemble the various components of the other mechanical parts sequentially from the top,
2 is fastened with bolts 27 and fixed.

By adopting an upward governor frame configuration of such a fastening portion, the assembly direction of various components of the mechanism portion becomes constant, so that it is assembled without changing the assembly posture, which is the final process of assembly. There is no need to invert the cover frame 12 when fastening it with the bolts 27, so that there is no need for a step of successively changing the setup. Also, since a vertical assembling method of assembling parts from above can be performed, parts can be easily held during assembling, and assemblability is improved, and introduction of automatic assembling by an assembling robot is facilitated.

Further, by making the shapes of the reference frame 11 and the cover frame 12 triangular, the weight can be reduced.
Fastening points can also be minimized.

In addition to the embodiment shown in FIG. 3, the following frame structure may be adopted.

FIG. 5 is a perspective view of an elevator governor frame according to another embodiment of the present invention. In this drawing, a spacer 13 is provided on the cover frame 12 side.

FIG. 6 is a perspective view of an elevator governor frame according to another embodiment of the present invention. In this figure, the frame is divided diagonally, and the reference frame 11, the cover frame 1
2 is bent into an L-shape to form a spacer 13
Is provided.

FIG. 7 is a perspective view of an elevator governor frame according to another embodiment of the present invention. In this figure, both ends of each of the reference frame 11 and the cover frame 12 are bent into an L-shape to provide a spacer portion 13.

FIG. 8 is a perspective view of an elevator governor frame according to another embodiment of the present invention. In this drawing, both ends of the reference frame 11 are bent into an L-shape to form a spacer 13.
, And one end of the cover frame 12 is bent into an L-shape to provide a spacer portion 13.

[0028]

[0029]

[0030]

[0031]

As described above, according to this embodiment, since one side of the governor frame for the elevator is a space, the space for assembling the parts is widened, and the assembling direction can be performed from a fixed direction without changing the posture. Thereby, the step of changing the setup one after another can be omitted. Furthermore, since the elevator governor can be assembled in a vertical assembling method in which parts are stacked from above, it is easy to hold the parts during assembly. Therefore, assemblability is improved, automatic assembly can be easily performed,
Work time can be reduced.

[0033]

According to the present invention, since the governor frame is composed of the reference frame, the cover frame, and the spacer portion, the reference frame is placed horizontally at the time of assembling, and the cover frame side becomes a space, so that a component assembly is provided. The space for mounting is widened, and various parts of the mechanism are stacked in order from the top, and finally the cover frame can be fastened vertically from one direction, thereby facilitating automatic assembly,
Labor saving and working time are reduced, and the productivity of assembly is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an elevator governor according to an embodiment of the present invention before a cover frame is fastened.

FIG. 2 is a perspective view showing a state where assembly of the elevator governor according to the embodiment of the present invention is completed.

FIG. 3 is a perspective view of an elevator governor frame according to an embodiment of the present invention.

FIG. 4 is a perspective view showing an assembling sequence of an elevator governor according to the embodiment of the present invention.

FIG. 5 is a perspective view of an elevator governor frame according to another embodiment of the present invention.

FIG. 6 is a perspective view of an elevator governor frame according to another embodiment of the present invention.

FIG. 7 is a perspective view of an elevator governor frame according to another embodiment of the present invention.

FIG. 8 is a perspective view of a single governor frame for an elevator according to another embodiment of the present invention .

Continued on the front page (72) Inventor Yoji Inanobe 1070 Ma, Katsuta-shi, Ibaraki Pref., Mito Plant, Hitachi, Ltd. ) Inventor Hisao Uchida 2nd day at 832 Horiguchi, Katsuta-shi, Ibaraki Hitachi System Plaza Katsuta Hitachi Mito Engineering Co., Ltd. (56) References JP-A-4-361964 (JP, A) JP-A-4-341476 (JP) , A) Jikken 63-16694 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66B 5/04

Claims (3)

(57) [Claims] A pulley 1. A cab of the lift speed and the synchronous rotating governor rope is to change the wound elevating speed of the rotational speed, overspeed and detects the abnormal speed by centrifugal force according to the rotational speed of the pulley switch And a pendulum axially supported by the pulley, and a pulley shaft rotatably supporting the pulley.
A mechanism comprising, in the elevator governor and a frame for holding the mechanism, the frame, Ri Do from the reference frame and the cover frame consisting of a plate material having a greater height and width than the mechanical portion , The reference frame
And / or cover frame with upper and lower edges bent
The reference frame with the spacer portion.
A governor for an elevator, wherein the governor and the cover frame are connected and held . 2. The method according to claim 1, wherein the spacer portion is provided on the reference frame.
One of the upper and lower ends and the other of the upper and lower ends of the cover frame
The governor for an elevator according to claim 1, wherein the governor is formed at a center . 3. A governor that rotates synchronously with the elevator speed of the car.
A pulley on which a narrow rope is wound to change the elevating speed to a rotation speed
And abnormal speed due to centrifugal force according to the number of rotations of the pulley.
Detects and controls the overspeed switch and is supported by the pulley
A pendulum, a pulley shaft that rotatably supports the pulley,
And a frame that holds the mechanism.
A method of assembling a governor for an elevator, wherein
A plate having a height and width greater than
The reference frame erected re shaft, the pulley shaft end upper
And so as horizontally placed, the mechanism portion is mounted substantially vertically from above to the reference frame, prior to the cover frame
A method for assembling a governor for an elevator, wherein the governor is fixed to the reference frame via a spacer .