JPS61116036A - Remote control device for engine-driven type generator - Google Patents

Abstract

PURPOSE:To perform remote control of an engine in a working place and to improve working efficiency, by a method wherein a control drive, installed to a generator, is actuated through operation of a working machine at hand, and this causes the engine to automatically start, perform reduction, and stop. CONSTITUTION:A control device 1 of an engine-driven type generator (a) is a drive comprising an electric circuit, and switches are disposed to a switch board 2, where necessary. A control switch 101, which is switchable to manual and automatic, a limit switch 102 which automatically reduces and stops an engine 4 after a set time lapsed, and a sound producer switch 104 for a control sound producer 103 which reports forced reduction and forced stop only for preheating, starting, and welding work of the engine 4, are mounted as the switched of the control device 1. In addition, a main switch 3 for a power source, and a gear shifting lever 402 for the engine 4 are provided. A working machine is connected to the control device 1, and remote control is made on the engine 4 by means of the control device 1 through control of the working machine.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is characterized in that it is powered by an engine. When the worker starts the engine and energizes a working machine (for example, an arc welding machine, a power tool, etc.) electrically connected to the generator to perform work, the worker operates the working machine in his hand to start the engine. The present invention relates to a control method for remotely controlling a drive.

Conventional technology When a worker works in a location far away from the generator, the worker must go to the generator installation site and operate the generator one by one depending on the start, progress, and completion of work. There wasn't.

Problems that the invention aims to solve This not only significantly reduces work efficiency, but also
When the engine is running, until the engine is stopped,
Since the driving state continues, there are problems in terms of noise, fuel, and fuel consumption savings. In addition, engine operation is
Manually turn on and off the manual switch provided on the engine
Because the engine was operated by F, workers were unable to operate the engine at any time at the work site.

The present invention was made in view of the above circumstances, and allows the engine to be remotely controlled by the worker operating the working machine in his/her hand (operating a tool switch, interrupting or continuing work, etc.). The purpose of this study is to propose a convenient control method.

Means for Solving the Problems The present invention provides that when a worker operates a working machine such as an arc welding machine or a power tool in his/her hand, a control device installed in the generator starts the engine, starts low-speed operation, The system controls the high-speed and low-speed operations required for work, and automatically stops the engine at the end.

Automatically turn on the control switch of the action control device, turn on all the switches installed at the same time, and operate the work machine at hand (if it is an arc welder, bring the welding rod into contact with the object to be welded, and then turn on the power tool) If so, turn on the tool switch) and the engine will automatically start and start low-speed operation. At this point, operate the work machine again (in the case of an arc welder, either maintain contact between the welding rod and the object to be welded for a predetermined amount of time, or bring the welding rod once removed from the object to be welded back into contact with the electric If it is a tool, operate the tool switch again)
Then, the engine automatically shifts to high-speed operation, and a predetermined amount of current necessary for the work flows through the working machine, but since the limit switch on the control device is turned on, when the working machine at hand is operated for the first time ( If it is an arc welder, the moment the welding arc stops; if it is a power tool, the moment the tool switch is turned off.
The engine automatically shifts to low speed operation after a certain period of time (from the time of F operation).

If the machine is left unused, the engine will automatically shut down after a certain amount of time.

Embodiment To explain an embodiment of the present invention with reference to the drawings, the control device (1) of the engine-driven generator (a) includes a relay, a timer, a limit switch, and a solenoid (all not shown).
It is a device consisting of an electric circuit formed by etc., and the necessary switches are installed on the switchboard (2). Control device (1 switch) is a control switch that can be switched between manual and automatic (
101), a limited switch for a timer that automatically shifts and automatically stops the engine after a set time and minutes (102), a forced shift only for engine preheating, startup, and welding work (
A sound generator switch (104) for the control sound generator (103) that notifies you of (high speed → low speed) and forced stop (low speed → stop), etc.
, high speed switch (105), stop switch (106)
etc. In addition, there is a main switch (3) for the power supply (battery), and a manual, OFF, and ON switch for the engine (4).
Engine switch (401) that can be switched to X' start, etc.
, a gear shift lever (402) for the engine (4), etc. are provided. Reference numeral (5) in FIG. 1 is a generator. Then, as shown in Figure 3, the working machines (G) and (6) are connected to the control device, where the figure shows an electric drill, (13) shows an example of a welding rod, and [F]) shows the welding object. represent.

Next, to explain how to use it, with the engine stopped with all switches installed on the power distribution board (2) turned OFF, I) If you are performing a manual test run, turn on all the switches on the power distribution board (2), and then Set the control switch (101) to manual ONL and shift lever (402) to medium speed.

Then, turn on the engine switch (401) to preheat.
After that, switch to startup, run the engine (4) at low speed to warm it up, then stop it, return the gear shift lever (402) to low speed, and after completing the preparatory work, perform a test run to ensure that all equipment is in good condition. Make sure of that.

■) When activating the control device (1) to perform arc welding work, turn on all switches on the control panel (2), turn on the control switch (101) automatically, and turn on the engine switch (401). When turned on to start, work machine C
Indicator light (6) indicating that power is applied to each part including B)
) lights up, but after about 2 to 3 seconds the power is cut off, the indicator light (6) goes out, and work preparation is completed.

Even if you do not perform arc welding work in the state where work preparation is complete and leave each of the above switches in the ON position, the battery will not be discharged because the power is cut off.

When starting arc welding work, start the engine (4) → For low-speed operation, when the tip of the welding rod (J3) comes into contact with the object to be welded, the power is turned on, the indicator light (6) lights up, The control sound generator (103) generates sound and the engine (4) is preheated. Engine (4) is the engine switch (4Q1)
Since it is turned ON, the engine starts automatically, and at the same time as this starts, the control sound generator (103) stops producing sound, and the engine (4) starts low-speed operation. The engine (4) is operated for the time set by the timer of the control device (1) (approximately 5 seconds).
However, during this set time, the welding rod (B) may remain in contact with the welding material (6 fields) or may be separated from it. Next, when changing the speed of the engine (4) from low speed operation to high speed operation required for the work, the contact between the welding rod () and the workpiece [F]) to be welded must be maintained for the above set time (approximately 5 seconds), or Or, if the two separated parts are brought into contact again, the gear will automatically shift to high speed operation,
Arc welding work becomes possible. There are two ways to shift the engine (4) from high-speed operation to low-speed operation: a timed shift and a forced shift. For timed shifting, the limited switch (
102) is turned on, the speed is automatically changed when the time set by the timer has elapsed from the time when the welding arc stopped. However, if you forget to turn on the limited switch (102), automatic gear shifting will not occur, so it is important not to forget to turn on all switches on the switchboard (2) before starting work. Forced speed shifting is only possible during welding work, and if the worker wants to change speed immediately to low speed operation, weld the tip of the welded sardine rod to the Vl welding body 6 for about 2 seconds. If this is done, the control sound generator (103) will sound and the engine (4) will automatically shift to low speed operation.Therefore, when the control sound generator (103) starts sounding, welding should be stopped.Forced. For type shifting, use the limited switch (
Even if the engine (102) remains OFF, the engine (4
) automatically shifts to low speed operation. Note that although welding may normally occur by mistake, this will stop after about 1 second, so the engine (4) will not automatically shift to a low speed. When stopping the engine (4) that has been shifted to low speed operation, there are two methods: timed stop and forced stop. In the former, if there is no work to be done after shifting, the engine (4) is left as it is and the timer is set (0). It will automatically stop after ~3 minutes). The latter method is only possible for welding work, and if the operator wishes to stop the work, the engine ( 4) will automatically stop, and immediately after this stop, the indicator light (
6) lights up and turns off after 4 to 5 seconds to notify you that the power has been cut off. Therefore, the battery will not be discharged unnecessarily after the engine (4) is stopped.

(2) Preparation for work when operating the control device (1) and using the power tool is the same as for arc welding work. It is the same as the arc welding work when the work is not started after the work preparation is completed and the above-mentioned switches are left in the ON state.

In the case of starting drilling work in the example where the power tool is a drill, the engine (4) can be started and operated at low speed by turning on the tool switch (A1) of the power tool, and the engine drive after startup is as follows. , as in the case of arc welding work. By operating the tool switch (Az), the speed of the engine (4) can be automatically changed from low speed operation to high speed operation required for the work, as in the case of arc welding work, and the necessary drilling work can be performed. The speed change of the engine (4) from high speed operation to low speed operation is possible through the time-limited speed change described above, and since the limit switch (102) is turned on, from the time the tool switch (A1) is turned off, Automatically shifts gears after the time set by the timer. However, the limited switch (10
If 2) is left OFF, the automatic shift to low speed operation will not occur, so remember to turn on all switches as in the case of arc welding work. The transition from low-speed operation to stop of the engine (4) can be done in a timed manner.If there is no need to perform any work after shifting to low-speed operation, the engine (4) can be left as it is, and after the time set by the timer (0 It will automatically stop after ~3 minutes). The fact that the battery is not discharged after the engine is stopped means that
This is similar to the case of arc welding work.

By the way, before the work starts, the welding rod (B) is attached to the welded object C.
B) or the tool switch (A1) of the iW power tool (B) may have been turned on in advance, so prevent unexpected accidents from occurring in these cases. and explain the security measures to ensure safety.

Even if the control switch (101) is turned ON manually or automatically, the engine switch (401) is turned ON to start, and the main switch (3) is turned ON, the control sound generator (103) will immediately turn ON for the time set by the timer (approx. 3 to 4 seconds), and as soon as the sound stops, the battery power is cut off, and the engine (4) will not start. In such a case,
Eliminate the cause and operate the reset switch (7). If you release the self-holding by the relay of the control device (1) that has been turned off, the power will be turned on, and the engine can be turned on by performing the specified startup operation. (4) can be activated.

Effects of the Invention Since the present invention has the configuration described above, if a worker operates the working machine at hand, the electric power of the engine can be remotely controlled at the work site.

Therefore, compared to the conventional technology, the worker does not have to leave the work site, so the work efficiency is significantly improved, engine fuel and fuel consumption can be significantly saved, and at the same time, noise can be reduced.

Therefore, the intended purpose can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view of an engine-driven generator showing the main parts;
FIG. 2 is a side view, and FIG. 3 is an explanatory diagram schematically showing the state of use. In the figure, (A)... Engine-driven generator (2), [F]) - Working machine (1)... Control device (4)... Engine (5)... Generator. Patent applicant: Kenji Ando Figure 2 and Figure 3

Claims (1)

[Claims] When you operate the work machine at hand, the control device installed in the generator activates, starting the engine, changing speed sequentially through low-speed operation, high-speed operation necessary for the work, low-speed operation, and then automatically stopping the engine. A remote control method for an engine-driven generator.