JP6670665B2 - Operation input device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an operation input device.

  As a background art of this technical field, there is Japanese Patent Application Laid-Open No. 58-183586 (Patent Document 1). This publication discloses that "an electronic circuit, a temperature sensor, and an impact sensor are provided in a case body of a pendant switch for operation of a crane and the like, and a selection switch and a digital display section are provided on an outer surface of the case body. A pendant switch for operating a crane or the like, characterized in that it is organically connected to a power control circuit, a push button switch, and the like so that necessary data stored in the electronic circuit can be selectively displayed. " I have.

JP-A-58-183586

  In Patent Document 1, the number and frequency of operation of switches, the number and frequency of data detected by a temperature sensor and an impact sensor when they are equal to or greater than a predetermined value, and the data, and the current value of a power circuit are pendant. It is stored in an electronic circuit provided in the switch.

  However, in Patent Document 1, although the operation status of the hoist is stored, maintenance information such as the remaining life of the hoist, which is important when the hoist is used safely for a long time, is considered. Absent.

  Further, in Patent Document 1, the number of times of operation of the switch and the like is stored, but the operating time of the hoist is not stored. Storing the operating time is also important in preventive maintenance of equipment because it is possible to estimate the time of replacement of maintenance parts.

  Further, in the switch disclosed in Patent Document 1, maintenance information such as a serial number, a wiring diagram number, and a part replacement history for specifying a device of a hoist cannot be written.

  Further, in Patent Literature 1, current value data is obtained from an external device power control circuit provided on the crane, hoist, or the like side. Therefore, when the operation monitoring function is retrofitted to a hoist, The installation of the additional equipment to the main body, the change of the wiring, the change of the parts, and the like require extremely troublesome work.

  Therefore, an object of the present invention is to provide an operation input device that can be easily retrofitted and that can input and output maintenance information of a hoist.

  In order to solve the above-mentioned problems, a configuration described in the claims is adopted. Although the present application includes a plurality of inventions, for example, an operation input unit for performing operation of hoisting and lowering operation of the hoist, and the number of times of operation and operation of the hoist based on the operation on the operation input unit, for example. An operation information storage unit that acquires and stores the time, and the operation information storage unit calculates the remaining life value of the hoist based on the number of times of operation and the operation time of the hoist stored in the operation information storage. An operation input device to be estimated.

  According to the present invention, it is possible to provide an operation input device that can be easily retrofitted and that can input and output maintenance information of a hoist.

The external view of a hoist and an overhead crane. The circuit diagram of a hoist. FIG. 3 is a detailed view showing one embodiment of the present invention. FIG. 2 is a circuit diagram showing one embodiment of the present invention.

Hereinafter, embodiments for implementing the present invention will be described with reference to the drawings.

  This embodiment will be described with reference to FIGS. The present invention is not limited to the illustrated example.

  FIG. 1 is a diagram showing an external view of a hoist and an overhead crane. FIG. 2 is a diagram illustrating an example of a circuit configuration of the hoist.

  First, the operation of the hoist 1 according to the present embodiment will be described with reference to FIGS.

The crane device includes a hoist 1, a runway 2, a saddle 3, a girder 4, a cable 5, and an operation input device 6. The hoist 1 runs on a saddle 3 having wheels along a runway 2 provided on walls on both sides of the building. The saddle 3 supports a girder 4 supporting the hoisting machine 1, and the girder 4 is provided with a hoisting machine 1 according to various uses. The hoist 1 is connected to a push button switch 6 via a cable 5. The push button switch 6 performs the hoisting up / down operation and the traveling / traversing operation of the hoisting machine 1 according to a user's operation input.
Next, the operation of the hoist 1 according to the present embodiment will be described with reference to FIG.

  The push button switch 6 has an upper button 13 (winding input unit) for operating the hoist to hoist, and a lower button 14 (winding input unit) for operating the hoist to lower. The upper button 13 and the lower button 14 are pressed by the user, and when the contact in the push button switch 6 is closed, the excitation coil 9 of the electromagnetic contactor 7 is excited. The contact 10 for the push button of the electromagnetic contactor 7 is closed by the excited exciting coil 9. Thereby, the motor 11 is energized and the electromagnetic brake 12 is released, and the hoisting machine 1 starts the hoisting operation and the hoisting operation.

  The switching between the hoisting operation and the unwinding operation is performed by connecting the push button switch 6 so that the phase rotation on the output side of the electromagnetic contactor 7 is reversed when the upper button 13 and the lower button 14 are pressed. , Which enables a hoisting operation and a hoisting operation.

  As will be described later, the number of times of operation of the hoisting machine 1 is based on the number of times of operation of the push button switch 6 and the number of times of operation of the electromagnetic contactor 7. Based on the energizing time and the energizing time of the electromagnetic contactor 7, the operation information is stored in the operation information storage unit of the push button switch 6 and stored.

  Here, in the hoisting machine 1, while a new type of computerized by the inverter drive system has been widely used, the conventional non-inverter drive system 1 Is still traded in many markets and is used on site. The non-inverter driven hoist 1 has electrical components including a motor 11, an electromagnetic brake 12, an electromagnetic contactor 7, a push button switch 6, and a limit switch 15. In the present embodiment, with such a configuration, it is possible to store the operation status such as the number of operations and the operation time of the hoist in the push button switch 6.

  For this reason, the operation status checking method according to this configuration can be realized by electrically storing the number of times of opening / closing of the contacts in the push button switch 6 and the energizing time without depending on the computerization of the hoisting machine 1 itself. Therefore, the push button switch 6 in this embodiment can be easily retrofitted to a non-inverter driven type hoisting machine, and can store the operating status of the hoisting machine.

  Next, the configurations of the push button switch 6 and the hour meter unit 16 in the present embodiment will be described with reference to FIGS.

  FIG. 3 is a diagram illustrating an example of the internal configuration and appearance of the push button switch 6 according to the present embodiment. FIG. 4 is a diagram illustrating an example of a circuit configuration of the push button switch 6 and the hoist 1 according to the present embodiment.

  When the upper button 13 and the lower button 14 are pressed, the push button contact 10 in the push button switch 6 is closed. Thereby, the exciting coil 9 of the electromagnetic contactor 7 is excited, and the electromagnetic contactor contact 8 of the electromagnetic contactor 7 is closed. When the contact 8 for the electromagnetic contactor is closed, the input circuit section in the hour meter unit 16 is energized, and is replaced by an input signal in the input circuit section (signal detection section).

  The input circuit unit outputs an input signal to the operation information storage unit 20 to start measuring the energization time and the number of starts. There are two places where the electric signal is input to the hour meter unit 16 from the upper button 13 and the lower button 14. The operation information storage unit 20 performs measurement when either of the inputs is made. .

  The input circuit section is connected to the contact 10 for the upper button 13 and the contact 10 for the lower button 14 of the push button switch 6, respectively. The input circuit unit is configured to turn on the hour meter unit 16 by pressing the upper button 13 or the lower button 14 of the push button switch 6 as the operation time and the number of operations of the hoist 1 based on the input electric signal. And the number of times the hoisting machine 1 has been started.

  The input circuit unit outputs the detected energization time and the number of starts to the operation information storage unit 20. The operation information storage unit 20 stores the operation time and the number of times of operation based on the energized time and the number of times of start that are output and acquired. Each time the energization time and the number of starts are input, the operation information storage unit 20 accumulates the energization time and the number of starts input in the previous energization time and the number of starts, and calculates the total operation time and the number of operations.

  The operation information storage unit 20 estimates the remaining life value of the hoist 1 based on the stored total operating time and the number of times of operation of the hoist 1. The display unit 19 provided on the push button switch 6 displays the estimated remaining life value in addition to the operation time and the number of operations. These displays may be displayed all at the same time, or may be displayed one by one and switched to a desired display by the user.

  Thereby, the user can know the operation information of the hoist 1 and the maintenance time only by referring to the push button switch 6.

  The display unit 19 is arranged in an opening provided on the same case surface as the push button row or on a different surface. In addition, the display unit 19 has the protective cap 18, and by removing the protective cap 18 as necessary, the user can refer to the energization time, the number of starts, and the like. By providing the protective cap 18, damage to the display unit 19 can be prevented.

  Note that the protective cap 18 is not always necessary and need not be provided.

The hour meter unit 16 is provided with an input / output unit 17 to which an external storage medium represented by a USB terminal or a micro USB terminal can be connected. In the input / output unit 17, by operating the push button switch 6 in a state where the push button switch 6 is energized as necessary, for example, in a state where the load is not suspended on the hoisting machine 1, the input / output unit 17 directly or externally stores the external storage medium. It is possible to indirectly retrieve operation information such as the operation time and the number of operations stored in the operation information storage unit 20 via a data transfer cable.
As described above, the hour meter unit 16 has the input circuit unit, the operation information storage unit 20, and the input / output unit 17, and is extremely compactly integrated with the minimum necessary electronic components for realizing the operation. It is configured. The hour meter unit 16 is provided in the case of the push button switch 6. The input / output unit 17 is provided on the same case surface as the surface on which the push buttons are provided.

  The location where the input / output unit 17 is provided is not limited to this, and may be an opening provided on a surface different from the surface on which the push button is provided.

  The input / output unit 17 may be configured so that an external storage medium or a data transfer cable can be inserted by removing a protective cap 18 provided in the opening as necessary. Accordingly, it is possible to prevent dust from entering the input / output unit 17 and prevent the failure of the hour meter unit 16.

  When detecting insertion of an external storage medium or a data transfer cable, the hour meter unit 16 transfers operation information and writes the information to the external storage medium. Note that the transfer of the operation information may be started immediately upon detection of insertion of an external storage medium or the like. Further, a transfer start input unit for starting transfer may be provided in the push button switch 6, and the transfer may be started when the transfer start input unit receives an input from the user.

  Information can be written to the hour meter unit 16 via the input / output unit 17. The information to be written includes initial information such as a serial number and notes on special specifications, which are main body information of the hoisting machine 1, and maintenance information such as wiring diagram numbers and replacement part histories. Can be stored.

The operation information storage unit 20 estimates the remaining life value of the hoist 1 based on the input initial information and maintenance information in addition to the stored operating time and operation information of the hoist 1. It is better to do it. This makes it possible to accurately estimate the remaining life value of the hoist according to the use situation of the user who uses the hoist and the type of the hoist.
Further, since the hour meter unit 16 has a compact size, it can be attached to the main unit of the hoisting machine 1 and used as a backup. For example, if the hour meter unit 16 on the push button switch 6 side is damaged by connecting to the electromagnetic contactor 7, it can be used as a backup.

In addition, the total operation time (life time) of the hoist 1 is set according to the product class and the normal vine load according to JISB8815 and crane structure standards.
The grade of the hoist is described on the nameplate of the main body, product specifications, product catalogs, and the like, and the hoist is also designed to correspond to this grade.

  Normally, the expert estimates the remaining life by sampling the operating time of the hoisting machine 1 and the hang load as a normal state, but according to the present invention, hoisting only by assuming only a load that is relatively easy to imagine. The remaining life of the machine 1 can be estimated. In this case, the value of the hang load may be set in advance in the operation information storage unit 20 via the input / output unit 17 and the remaining life value may be estimated including this information. This makes it possible to more accurately estimate the remaining life value as compared to a case where no load value is input.

  Further, since the component life of the push button switch 6 and the electromagnetic contactor 7 is determined by the number of starts, the remaining life value of the push button switch 6 and the electromagnetic contactor 7 can be estimated by grasping the number of starts. It is.

  As described above, according to the present embodiment, information on the hoisting machine 1 such as operation information and maintenance information can be easily extracted at hand without going to a high place to check the control unit of the hoisting machine 1 body. Or input. In addition, by replacing the pushbutton switch of the non-inverter type hoisting machine 1 already used in the market with the pushbutton switch 6 of the present embodiment, it is possible to store operation information, retrieve device information, and the like. Becomes This can help the maintenance performed by the user.

  Note that the present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described above. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of one embodiment can be added to the configuration of another embodiment. Also, for a part of the configuration of each embodiment, it is possible to add, delete, or replace another configuration.

In addition, each of the above-described configurations, functions, processing units, processing means, and the like may be partially or entirely realized by hardware, for example, by designing an integrated circuit. In addition, the above-described configurations, functions, and the like may be realized by software by a processor interpreting and executing a program that realizes each function. Information such as a program, a table, and a file for realizing each function can be stored in a memory, a recording device such as a hard disk and an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, and a DVD.
In addition, control lines and information lines are shown as necessary for the description, and do not necessarily indicate all control lines and information lines on a product. In fact, it can be considered that almost all components are connected to each other.

1 ... Hoisting machine, 2 ... Runway, 3 ... Saddle, 4 ... Girder, 5 ... Cable, 6 ... Pushbutton switch, 7 ... Electromagnetic contactor, 8 ... ..Contacts for electromagnetic contactors, 9 ... exciting coils, 10 ... contacts for push buttons, 11 ... motors, 12 ... electromagnetic brakes, 13 ... up buttons, 14 ... down buttons , 15 ... Limit switch, 16 ... Hour meter unit, 17 ... External storage medium port, 18 ... Protective cap, 19 ... Display unit, 20 ... Microcomputer

Claims (4)

An operation input unit for operating the hoisting up / down operation of the hoist;
Based on the operation in the operation input unit, an operation information storage unit that acquires and stores the number of operations and the operation time of the hoist,
An input unit for inputting maintenance information that is information of the serial number of the hoist and parts replacement,
The operation input device, wherein the operation information storage unit estimates a remaining life value of the hoist based on the number of operations and the operation time of the hoist stored in the operation information storage. The operation input device according to claim 1, wherein
The operation input unit includes a hoisting pushbutton that outputs a signal for operating the hoisting machine and a hoisting pushbutton that outputs a signal for operating the hoisting machine. ,
The operation information storage unit acquires and stores the number of times of operation and the operation time of the hoist based on the number of times and the time when the hoisting push button and the lowering push button are pressed. An operation input device, characterized in that: The operation input device according to claim 2, wherein
The hoisting push button has a hoisting contact that closes when pressed,
The lowering push button has a lowering contact that closes when pressed.
The information operating information storage unit acquires and stores the number of times of operation and the operating time of the hoisting machine based on the number of times the hoisting contact and the unwinding contact are closed, and the time during which the contact is closed. An operation input device characterized by the above-mentioned. The operation input device according to any one of claims 1 to 3, wherein
An operation input device comprising a display unit for displaying the number of times of operation, the operation time, and the remaining life value.

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