JPH1054783A - Number-of-rotations setting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a number-of-rotations setting device for a function testing device which can set the number of rotations so that the number of rotations of a rotary machine agrees with a designated number-of-rotations instruction value (number-of-rotations pattern) automatically regardless of the presence and absence of load fluctuation of the rotary machine and which can use the number-of-rotations pattern once inputted repeatedly and which can use the number-of-rotations pattern once inputted repeatedly by storing in a memory. SOLUTION: An automatic controller 1 has an input operation device 1A in which a computer 1A-6 is built for inputting a number-of-rotations instruction value (number-of-rotations pattern) from a keyboard 1A-1 and a display/control device 1B which incorporates a computer 1B-2 for comparing the number-of- rotations instruction value with number-of-rotations (detecting signal of a rotational sensor 5) of a rotary machine 4 and adjusting an output signal S1 (that is, a voltage signal S3) providing to a motor control board 2 such that this number-of-rotations agrees with the number-of-rotations instruction value. The pattern is stored in a memory of the computer 1A-6 or the computer 1B-2 and it is used by calling from the memory by inputting a pattern No from the keyboard 1A-1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotational speed setting device, and is useful when applied to a function test device for various rotating devices such as a rotating device attached to an aircraft engine.

[0002]

2. Description of the Related Art FIG. 4 is a system configuration diagram of a rotary equipment function test apparatus provided with a conventional rotation speed setting device, and FIG. 5 is a block diagram of the rotary equipment function test apparatus shown in FIG.

[0003] As shown in these figures, when performing a function test of a rotating device (specimen) 4 attached to an aircraft engine, a direct current (DC) motor (hereinafter simply referred to as a motor) 3 is attached to the rotating device 4. And the rotating device 4 is rotated at a predetermined rotation speed by the motor 3.

The motor 3 is provided with a rotation sensor (rotary encoder) 5 for detecting the number of rotations of the motor 3 (ie, the number of rotations of the rotating device 4). It is connected to the panel 2. A manual controller 6 is connected to the motor control panel 2 as a rotation speed setting device.

The motor control panel 2 has a frequency / voltage (F / V)
The F / V converter 2a includes a converter 2a and a thyristor (SCR) controller 2b. The F / V converter 2a converts a detection signal (pulse signal) of the rotation sensor 5 into a voltage signal. The drive of the motor 3 is controlled based on the deviation between the voltage signal converted by the / V converter 2a and the voltage signal output from the manual controller 6.

The manual controller 6 is provided with a dial (dial of a manual voltage regulator VR) 6a and a display 6b. By operating the dial 6a, a voltage signal output to the motor control panel 2 is adjusted. The display 6b displays the number of rotations of the rotating device 4 detected by the rotation sensor 5.

Therefore, in the above-mentioned conventional rotational speed setting device, the rotational speed is set as follows.

That is, while watching the number of rotations of the rotating device 4 displayed on the display 6b of the manual controller 6, the operator
By manually operating the dial 6a of the manual controller 6 to adjust the value of the voltage signal output to the motor control panel 2, the rotation speed of the rotating device 4 is adjusted to a predetermined rotation speed.

[0009]

However, in the above-mentioned conventional rotation setting device, the display 6b of the manual controller 6 is not used.
Since the dial 6a of the manual controller 6 is manually operated while looking at the number of rotations indicated in the above, it is difficult to quantify the acceleration and deceleration patterns of the rotating device 4. That is,
It was difficult to accelerate or decelerate the rotating device 4 at a predetermined acceleration / deceleration rate.

Further, the rotation speed of the rotating device 4 must be set within a predetermined rotation speed ± 1 rpm required for the function test, and for this purpose, the rotating device 4 is gradually accelerated (dial). 6b) and the fine adjustment is required, so setting the number of rotations is a time-consuming operation.

Further, when the load on the rotating device 4 fluctuates, the rotation speed of the rotating device 4 changes. Therefore, every time there is a load change, the dial 6b of the manual controller 6 is finely adjusted to reduce the rotation speed of the rotating device 4. It has to be adjusted to a predetermined number of revolutions, which imposes a heavy burden on the operator.

Therefore, in view of the above prior art, the present invention automatically rotates the rotating device so that the rotating speed of the rotating device coincides with a predetermined rotating speed command value (rotating speed pattern) irrespective of the load fluctuation of the rotating device. It is an object of the present invention to provide a rotation number setting device of a function test device which can set a number and can store a rotation number pattern once input in a memory and repeatedly use it.

[0013]

According to a first aspect of the present invention, there is provided a rotational speed setting device of a test apparatus for performing a function test of a rotating device by rotating the rotating device with a motor. An input operation unit for inputting a rotation speed command value,
By comparing a rotation speed command value input from the input operation unit with a rotation speed of the rotating device detected by a rotation sensor, the motor is controlled so that the rotation speed of the rotating device matches the rotation speed command value. And a control unit for adjusting an output signal to be output to the drive control unit.

Further, in the rotation speed setting device having the above structure,
A memory for storing a rotation speed pattern that is a rotation speed command value input from the input operation unit, and a code corresponding to the rotation speed pattern is input from the input operation unit and the rotation speed pattern is read from the memory. Is configured to be called.

Therefore, according to the present invention having the above-described configuration, the control unit automatically determines the rotation speed of the rotating device by using the rotation speed command value (from the input operation unit) regardless of the presence or absence of a load change in the rotating device. (Rotational speed pattern).

Further, the rotational speed pattern once input from the input operation unit is stored in a memory, and thereafter, a predetermined code (pattern No. etc.) is input from the input operation unit and the rotational speed pattern is called from the memory. Thus, the rotation speed pattern can be used repeatedly.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. The same parts as those in the related art (FIGS. 4 and 5) are denoted by the same reference numerals, and overlapping detailed description will be omitted.

FIG. 1 is a system configuration diagram of a rotating device function test apparatus provided with a rotation speed setting device according to an embodiment of the present invention.
FIG. 2 is a block diagram of the rotating device function test apparatus shown in FIG. 1, and FIG. 3 is an explanatory diagram showing an example of a rotation speed pattern.

As shown in FIGS. 1 and 2, a motor 5 is connected to a rotating device 4 attached to an aircraft engine, and a rotation sensor 5 is attached to the motor 3. The motor 3 is connected to the motor control panel 2 and a rotation sensor 5
Is connected to the motor control panel 2 and the manual controller 6,
Furthermore, it is also connected to the display / control device 1B of the automatic controller 1 via the manual controller 6. Further, a manual controller 6 is connected to the motor control panel 2, and a display / control device 1B is also connected via the manual controller 6.

That is, this functional test apparatus is provided with an automatic controller 1 which is an automatic rotation speed setting device in addition to the manual controller 6 which is a manual rotation speed setting device. Can be switched by a switch described later. The automatic controller 1 has an input operation device 1A as an input operation unit for inputting a rotation speed command value (rotation speed pattern) and a display unit as a control unit for adjusting an output signal (voltage signal) to be output to the motor control panel 2. The display / control device 1B is connected to the motor control panel 2 and the like as described above.

The input operation device 1A includes a microcomputer (8-bit IBD CPU) 1A-6 and this computer 1A.
-6 connected to the display 1A-2 and the keyboard 1A-
1, a start / stop switch 1A-4, an auto / manual changeover switch 1A-5, an UP / DOWN counter 1A-7, a rotary encoder 1A-3 connected to the counter 1A-7, and a power supply 1A-7. Have been.

The display / control device 1B includes a microcomputer (8-bit IBD CPU) 1B-2 and a reference signal generator 1B-3 connected to the computer 1B-2.
Data storage device 1B-5, D / A converter 1B-7 and LED driver 1B-8, and data storage device 1B-5
, A DC amplifier 1B-6 connected to the D / A converter 1B-7, and an LED
A display 1B-1 connected to the driver 1B-8 and a power supply 1B-9 are provided. Various data transfer (communication protocol RS232C) such as a rotation speed command value and an operation signal is performed between the computer 1B-2 of the display / control device 1B and the computer 1A-6 of the input operation device 1A.

The manual controller 6 of the present test apparatus includes a relay 6c in addition to the manual voltage regulator VR and the display 6b having the dial 6a conventionally provided. This relay 6c is connected to the computer 1B-2 of the display / control device 1B.

In the input operation device 1A, the keyboard 1
A-1 is a 16-key keyboard, and an operator can input a rotational speed command value (rotational speed pattern) for the rotating device 4 to the computer 1A-6 from the keyboard 1A-1. The rotation speed command value (rotation speed pattern) input from the keyboard 1A-1 is transmitted to the computer 1A.
From -6, the computer 1 of the display / control device 1B
B-2 and transferred to computer 1A-6 or 1B
-2 is stored in the memory. Each rotation speed pattern stored in the memory can be repeatedly used by inputting a pattern No. corresponding to each rotation speed pattern from the keyboard 1A-1 and calling it from the memory.

The display 1A-2 is a 16-digit liquid crystal display (L
CD), and displays the content (rotational speed command value, etc.) input from the keyboard 1A-1.

The start / stop switch 1A-4 is
A switch for performing a start operation and a stop operation for setting the number of revolutions by the automatic controller 1. The auto / manual switch 1A-5 is a switch for switching between manual rotation speed setting by the manual controller 6 and automatic rotation speed setting by the automatic controller 1. That is, when the auto / manual changeover switch 1A-5 is set to the auto side, the relay 6 provided in the manual controller 6 is provided.
c is excited and the contact 6d is switched to the automatic side (display / control device 1B side). Conversely, when the auto / manual changeover switch 1A-5 is set to the manual side, the relay 6c is de-energized and the contact 6d is turned off. Switches to the manual side (manual voltage regulator VR side).

The rotary encoder 1A-3 is for changing a rotation speed command value. That is, the keyboard 1
The rotation speed setting of the rotating device 4 is performed based on the rotation speed pattern (rotation speed command value) input from A-1 or the rotation speed pattern (rotation speed command value) stored in the memory of the computer 1A-6 or 1B-2. If it is desired to change the rotational speed of the rotating device 4 by changing the rotational speed command value during the operation, the rotary encoder 1A-3 is operated (rotated).
I do. When the rotary encoder 1A-3 is rotated, a pulse signal is output.
It is counted at 8 and input to the computer 1A-6. As a result, in the computers 1A-6 and 1B-2,
The rotation speed command value is changed based on the input data.

On the other hand, in the display / control device 1B, the reference signal generator 1B-3 includes a computer 1B-2 and a counter 1B-4 for synchronizing the operation of each unit.
And outputs a reference signal to the data storage device 1B-5.

The counter 1B-4 is connected to the rotation sensor 5. Therefore, the rotation speed detection signal (pulse signal) output from the rotation sensor 5 is counted by the counter 1B, and is temporarily stored in the data storage device 1B-5, and then from the data storage device 1B-5 to the computer 1B-2. Is input to That is, in this way, the rotation speed of the rotating device 4 (the detection signal of the rotation sensor 5) is fed back to the computer 1B-2.

Then, in the computer 1B-2, the rotation speed of the rotating device 4 (the detection signal of the rotation sensor 5) is fed back regardless of the presence or absence of the load fluctuation of the rotating device 4.
And a rotation speed command value (rotation speed pattern) transferred from the computer 1A-6 of the input operation device 1A.
In order that the rotation speed of the rotating device 4 matches the rotation speed command value,
Adjusting the value of the output signals S ₁ to be output to the motor control board 2. That is, the rotation speed of the rotating device 4 increases the output signals S ₁ is smaller than the rotation speed command value, the rotational speed of the rotating device 4 reduces the output signals S ₁ is larger than the rotational speed command value. Note that either increases or decreases at a rate of how much the output signals S ₁ at this time, or variable according to the magnitude of the deviation of the rotational speed of the rotating device 4 and the rotation speed command value and the rotational speed setting device It is set as appropriate by making adjustments by performing a function test described above. Further, the output signals S ₁ is converted by the D / A converter 1B-7 for a digital signal to an analog signal (voltage signal) S _2, further voltage signal S ₂
Is amplified into a voltage signal S ₃ by the DC amplifier 1B-6, the voltage signal S ₃ is output to the motor control board 2.

That is, the operator manually operates the dial 6a while watching the rotation speed of the rotating device 4 displayed on the display 6b (comparing with the predetermined rotation speed) (the voltage signal S).
₄ adjusted to) on behalf of the rotational speed setting has been performed,
In this rotation speed setting device, the computer 1B-2 compares the rotation speed of the rotating device 4 with the rotation speed command value, adjusts the output signal S ₁ (that is, the voltage signal S ₃ ), and automatically sets the rotation speed. . In addition, since the present apparatus is also provided with the manual controller 6, by operating the auto / manual changeover switch 1A-5 to switch the contact 6d of the relay 6c to the manual side, the rotation speed is set manually as in the conventional case. You can also.

The display 1B-1 is a light emitting diode (LE)
D) is a 4-digit, 28-ch display using D), and is driven by the LED driver 1B-8 to display the number of revolutions of the rotating device 4 output from the computer 1B-2.

Therefore, according to the rotation speed setting device (automatic controller 1) having the above configuration, the rotation speed of the rotating device 4 is automatically adjusted to the rotation speed command value (rotation speed Pattern) can be set to match the rotation speed, so there is no need to manually set the rotation speed as in the past, reducing the burden on the operator and efficiently performing the function test. Can be. Further, it is possible to easily cope with a function test condition in which the setting accuracy of the rotational speed is strict.

The computer 1A-6 or 1B-2
In order to store the rotation speed pattern in the memory of the first time, if the rotation speed pattern is input from the keyboard 1A-1 for the first time,
From the next time onward, a target rotation speed pattern can be obtained only by inputting only the pattern No. from the keyboard 1A-1. For example, when the rotation speed patterns A and B illustrated in FIG. 3 are stored in the memory, if a function test is to be performed using the rotation speed pattern A, the pattern No. 1 of the rotation speed pattern A is input from the keyboard 1A-1. It is only necessary to input and call the rotation speed pattern A. In this way, the function test can be performed more efficiently by repeatedly using the rotation speed pattern stored in the memory.

[0035]

As described above in detail with the embodiments of the present invention, according to the rotation speed setting device of the present invention, the rotation speed of the rotating device is automatically set regardless of the load fluctuation of the rotating device. Can be set so as to match the rotation number command value (rotation number pattern). Therefore, there is no need to manually set the rotation number as in the related art, and the burden on the operator is reduced. In addition, the function test can be performed efficiently. Further, it is possible to easily cope with a function test condition in which the setting accuracy of the rotational speed is strict.

Also, by storing the rotation speed pattern in the memory, if the rotation speed pattern is input from the input operation unit for the first time, the code (corresponding to the pattern number, etc.) corresponding to the rotation speed pattern is input from the input operation unit thereafter. ) Is input to the memory to retrieve the desired rotational speed pattern. In this way, the function test can be performed more efficiently by repeatedly using the rotation speed pattern stored in the memory.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a rotating device function test apparatus including a rotation speed setting device according to an embodiment of the present invention.

FIG. 2 is a block diagram of the rotating device function test apparatus shown in FIG. 1;

FIG. 3 is an explanatory diagram showing an example of a rotation speed pattern.

FIG. 4 is a system configuration diagram of a conventional rotating device function test apparatus including a rotation speed setting device.

FIG. 5 is a block diagram of the rotating device function test apparatus shown in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic controller 1A Input operation device 1A-1 Keyboard 1A-6 Computer 1B Display / control device 1B-2 Computer 1B-4 Counter 1B-5 Data storage device 1B-6 DC amplifier 1B-7 D / A converter 2 Motor control board 3 Motor 4 Rotary device 5 Rotation sensor

Claims (2)

[Claims] 1. A rotation speed setting device of a test apparatus for performing a function test of a rotating device by rotating the rotating device with a motor, comprising: an input operation unit for inputting a rotation speed command value; A drive control unit of the motor is compared with a rotation speed command value input from the controller and a rotation speed of the rotating device detected by a rotation sensor so that the rotation speed of the rotation device matches the rotation speed command value. And a control unit for adjusting an output signal to be output to the motor. 2. The rotation speed setting device according to claim 1, further comprising: a memory for storing a rotation speed pattern which is a rotation speed command value input from the input operation unit, and further comprising: A rotation number setting device, wherein a code corresponding to the pattern is input to retrieve the rotation number pattern from the memory.