JPH05294579A - Drive device for testing operation of governor in elevator - Google Patents

Abstract

PURPOSE:To provide a compact and easily handlable drive device for testing a governor in an elevator. CONSTITUTION:A drive ring 2A adapted to be pressed against a governor pulley is attached to an exposed output shaft 2b of a motor 2 housed in a cylindrical easing 1, and a power source 9, a means 8B for regulating the rotational speed of the motor 2 and a power source switch 8 are also housed in the easing 1. The rotational speed regulating means 8B are adjusted while the drive ring 2A is pressed against the governor pulley so as to gradually increase the rotational speed of the motor 2, and a rotational speed at which the governor is operated, is read and compares with a normal value in order to test the governor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive device for an operation test of an governor of an elevator, which is configured to operate when a car lowers at a speed exceeding a set value so as to prevent traveling of a governor rope. ..

[0002]

2. Description of the Related Art Generally, an elevator governor operates when a car connected to an endless governor rope hung between a pair of pulleys descends at a speed exceeding a set value, and the governor rope travels. As a drive device for an operation test of a conventional speed governor for such an elevator, a conventional drive test device is, for example, Japanese Utility Model Publication No. 42-2146.
As disclosed in Japanese Patent No. 8 publication, it is provided with a rotating portion having a conical tip portion for pressing against the pulley of the speed governor, an electric motor for driving the rotating portion, a switch and a speed adjusting mechanism. Was configured.

[0003]

However, since the conventional drive device for the operation test of the speed governor of the elevator uses the commercial power source as the power source of the electric motor, the outlet of the commercial power source is located near the pulley of the speed governor. Without it, it could not be used, and the device itself was large and difficult to use.

It is an object of the present invention to provide a drive device for an operation test of an elevator governor which is compact and easy to handle.

[0005]

In order to achieve the above object, the present invention operates when a car connected to an endless governor rope hung between a pair of pulleys descends at a speed exceeding a set value. In the drive device for the operation test of the governor for elevators configured to suppress the traveling of the governor rope, the motor, the power supply thereof, and the rotation speed adjusting means for adjusting the rotation speed of the motor are tubular. A drive ring for pressing the governor pulley is attached to the drive shaft of the motor which is housed in the case and is led out of the case.

[0006]

Since the drive device for the operation test of the speed governor of the elevator according to the present invention includes the power source and the components are housed in the tubular case as described above, it is compact and has a tubular appearance. Easy to grip and easy to handle.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view of a drive device for an operation test of an elevator governor according to an embodiment of the present invention, in which one end of a cylindrical case 1 having a circular or regular polygonal shape is A motor drive ring 2A for pressing a governor pulley (not shown) is detachably attached to an output shaft 2B of the motor 2 which is housed and is led out of the case 1. A plurality of through bolts 11 are inserted in the case 1 along the axial direction, and a plurality of support end plates 3, 4, 5, 6, 7 are fixed at appropriate intervals in the middle thereof. That is, the support end plate 3 has the motor 2 and the support end plate 4 has
, A power transistor 8A that is a part of the control unit 8 on the supporting end plate 5, a power source 9 such as a rechargeable battery on the supporting end plate 6, and a supporting end plate 7 on the supporting end plate 7. A power switch 8C, a rotation speed adjusting means 8B such as a variable resistor for adjusting the rotation speed of the output shaft 2B of the motor 2, and a charging cord connecting terminal 10 are supported. This rotation speed adjusting means 8B
Is equipped with a switch, and this switch is wired so as to act as a power switch 8C for switching between forward and reverse rotation. Further, although a charging circuit for the power source 9 which is a rechargeable battery is provided, the illustration is omitted.

Next, an operation test by the above-described drive device for operation test of the elevator governor will be described. First, in the above-described drive device for operation test of the speed governor of the elevator, the power cord 9 is charged by connecting the charging cord connection terminal 10 to an appropriate commercial power source prior to use. After that, the charging cord connection terminal 10 is disconnected from the commercial power source, and the elevator speed governor for carrying out the operation test is brought. Therefore, the drive ring 2A is lightly pressed against the governor pulley, which is endlessly hung between the pair of pulleys, and the rotational force of the motor 2 is applied to the governor pulley.
The rotation speed of the motor 2 is adjusted by B to gradually increase the rotation speed. When the number of rotations reaches a predetermined value, the governor operates to prevent the governor rope from traveling, but the speed of the governor pulley at this time is measured by another detector and compared with the normal value to perform the test. Finish.

Since the precharged power source 9 is used in this manner, the test can be performed even if there is no commercial power source near the governor of the elevator to be tested. In addition, since the drive device for the operation test of the speed governor of the elevator is housed in the cylindrical case 1, the operator can easily handle it by hand and keep the whole compact. You can In the present embodiment, case 1
The arrangement of each component to be stored inside is as shown in the figure,
The arrangement of each component is not limited to the example shown in the figure, and various configurations can be adopted, and the same effect can be obtained in any of them, and the tachometer for displaying the number of revolutions when the speed governor of the elevator operates. May be attached to the case 1.

[0010]

As described above, the present invention provides a power source,
Since the motor that operates in this way and the rotation speed adjusting means that changes the rotation speed of the drive ring connected to this motor are housed in a cylindrical case, the entire structure can be made compact, and the elevator can be easily gripped and handled easily. It can be used as a drive device for operation test of the governor.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a drive device for an operation test of an elevator governor according to an embodiment of the present invention.

[Explanation of symbols]

 1 case 2 motor 8B rotation speed adjusting means 9 power supply

Claims (1)

[Claims] 1. An elevator constituted so that a car connected to an endless governor rope hung between a pair of pulleys operates when the car descends at a speed exceeding a set value to inhibit the traveling of the governor rope. In a drive device for an operation test of a speed governor for a vehicle, a motor, a power source thereof, and a rotation speed adjusting means for adjusting the rotation speed of the motor are housed in a cylindrical case, and the motor is extracted from the case. A drive device for an operation test of an elevator governor, wherein a drive ring for pressing the governor pulley is attached to a drive shaft.