JPH0671998B2 - Operating device for traveling crane - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an operating device for a traveling crane including a traverse trolley and a lifting device provided on the traverse trolley.

[Prior art]

BACKGROUND ART There is a cargo handling facility in which a traveling crane equipped with a traverse trolley and a hoist provided on the traverse trolley is installed in a cargo handling area, and a load is hung or grasped from a cargo handling point of the cargo handling area to a certain cargo handling point and moved.

FIG. 7 is a view showing the appearance of a conventional operating device for a traveling crane in such cargo handling equipment. As shown in the figure, it is necessary to mount a large number of pushbutton switches such as power supply, automatic / manual, start, reset ... In the operation unit of the case 100 of the conventional operation device. Therefore, there is a problem that the operating device 100 becomes large like a panel board. In addition, there is a problem that the number of electric wires connecting the traveling crane and the operating device is large, and the cables 101 and 102 are thick.

The present invention has been made in view of the above-mentioned problems, and eliminates the above problems and provides a crane operating device that is small and has a small number of electric wires for connecting a crane and an operating device, that is, a thin cable. Especially.

[Problems to be solved by the invention]

In order to solve the above problems, the present invention provides a traveling crane operation device including a traverse trolley and an elevating device provided on the traverse trolley, in which mode setting means for setting automatic operation and manual operation by operating a first switch, When automatic is set by the mode setting means, a cargo handling point setting means for numerically setting the cargo handling point of the cargo handling area by the second switch operation, and second when manual setting is made by the mode setting means
Function setting means for numerically setting various functions such as traveling, traverse, and elevating by switch operation, display means for displaying numerical values set by cargo handling point setting means or function setting means, traveling motor of crane, traverse motor, lifting A third switch for instructing normal rotation and a fourth switch for instructing reverse rotation to each motor such as a motor, a cargo handling point or function corresponding to a numerical value set by the cargo handling point setting means or the function setting means, and further third and third Control means for outputting commands such as traveling, traversing, and ascending / descending to the crane according to the switch operation state of No. 4 are provided, and each of these switches and each means are mounted on the operation device housing.

[Action]

By configuring the operating device of the traveling crane as described above, automatic / manual mode setting and various functions such as traveling, traverse, and elevating can be performed by operating the first, second, third, and fourth switches. The number of parts to be operated, that is, the number of switches is extremely small, and the operation device can be made extremely small without increasing the size of a panel panel as in the conventional case.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing the outer appearance of an operating device for a traveling crane according to the present invention. As shown in the figure, the operating device 10 includes a display case 12, a manual display lamp 13, an automatic display lamp 14, a mode setting push button switch 15, and a + /
The push button switch 16, the forward rotation push button switch 17, the reverse rotation push button switch 18, the start push button switch 19, the standby lamp 20, and the like are mounted. Reference numeral 21 is a cable for connecting the operating device 10 to the crane.

The mode setting pushbutton switch 15 is a pushbutton switch for performing manual / automatic switching, and when the mode setting pushbutton switch 15 is pressed, the manual display lamp 13 is turned on or the automatic display lamp 14 is turned on so that the manual or automatic Check the setting of.

The +/- push button switch 16 is a push button switch of two-step push, and the one-step push becomes "+" and the value of the display device 12 is increased by continuously pushing it, and the two-step push is "-".
By pressing and holding, the value of the display device 12 is subtracted.

The forward rotation push button switch 17 is a two-step push button switch for rotating the motor in the forward direction. One-step push commands low-speed motor forward rotation, and two-step push commands high-speed motor forward rotation.

The reverse push button switch 17 is a two-step push button switch for reversing the motor. One-step push commands low-speed motor reverse rotation, and two-step push commands high-speed motor reverse rotation.

FIG. 2 is a block diagram showing a configuration of a control device for processing a signal instructed by the operating device. As shown in the figure, the control device includes an output port 31, an input port 32, an output port 33, a central processing unit 34, a ROM / RAM 35 for storing data such as a processing program, and a RAM 36 for storing operation data. The display device 12 is an input port 31.
The mode setting push button switch 15, the +/- push button switch 16, the forward rotation push button switch 17, and the reverse rotation push button switch 18 are connected to 32, respectively. Motors M ₁ , M ₂ and M ₃ are connected to the output port 33. The motor M ₁ is a traveling drive motor of a traveling crane, the motor M ₂ is a traverse drive motor of a traverse trolley, and the motor M ₃ is a hoist hoisting and hoisting drive motor.

The cargo handling area is divided into X and Y directions as shown in Fig. 3, and the cargo handling point N
O.1, NO.2, NO.3, ... NO.14 are respectively assigned with the same number of location NO, and the cargo handling address consisting of X and Y corresponding to the location NO is as shown in Fig. 4. The data is tabulated and the tabulated data is stored in a predetermined cargo handling address storage area of the RAM 36. Also, as shown in FIG.
Corresponding to 1,2,3, ..., each function of traveling, traverse, elevating, ... is made into a table, and the tabulated data is stored in RAM3.
It is stored in the predetermined function storage area of 6.

In the present embodiment, the number displayed on the display device 12 when set to automatic indicates the address of the destination cargo handling point, and the number displayed on the display device 12 when set to manual indicates traveling, traverse, lift, etc. Shall represent the function of. That is, the destination address is set to a numerical value in the case of automatic operation, and each function is set to a numerical value in the case of manual operation. The operation in the case of automatic operation and the case of manual operation will be described below.

In the case of automatic operation When the operator presses the mode setting pushbutton switch 15 one step while the traveling crane is stopped, the contact 15a turns ON. The central processing unit 34 monitors the input port 32, and when the contact 15a of the mode setting pushbutton switch 15 is turned on, it is determined that the automatic operation is set, and the automatic display lamp 14 is turned on via the output port 31. From this, the operator can confirm that the automatic driving has been set. Next, the operator operates the +/- push button switch 16 to set the location NO of the desired cargo handling point while monitoring the display on the display device 12. This location NO is set by the central processing unit 34 +
This is performed by monitoring the time during which the 1-step or 2-step push of the / -push button switch 16 is continued and by increasing or decreasing the value of the display device 12 at that time. This setting value is RAM3
When the start push button switch 19 is pressed in this state, the central processing unit 34 causes the cargo handling point address (see FIG. 4) corresponding to the set numerical value to be stored in the cargo handling address storage area. Read from the crane, the traveling direction and distance of the crane, the traverse direction and distance of the traverse trolley, and the hoist winding amount are calculated, and the motors M ₁ , M ₂ ,
Output drive command to M ₃ . As a result, the traveling crane automatically travels to the set cargo handling address.

Manual operation When the operator presses the mode setting pushbutton switch 15 one step while the traveling crane is stopped, the contact 15a turns ON. The central processing unit 34 monitors the input port 32, and when the contact 15a of the mode setting pushbutton switch 15 is turned on, it is determined that the automatic operation is switched to the manual operation, and the automatic indicator lamp 14 is turned off via the output port 31. Manual indicator lamp
Turn on 13. From this, the operator can confirm that the manual operation has been set. Next, when traveling the crane, the +/- push button switch 16 is operated while looking at the display device 12 to set the value "01". This setting value is RAM3
Stored in 6 predetermined areas. In this state, the forward rotation push button switch 17 or the reverse rotation push button switch 18 is pressed depending on whether the crane is desired to travel in a predetermined direction or in the opposite direction. Further, in the case of low speed traveling, 17a or 18a is turned on by pressing the forward rotation push button switch 17 or the reverse rotation push button switch 18 by one step, and in the case of high speed traveling, by pressing the two steps 17b or 17b or 18b turns ON. The central processing unit 34 turns on 17a, 18a or 17b, 18b.
Monitors the traveling function corresponding to the set value "01" when turned on, and outputs a low speed or high speed forward or reverse rotation command to the motor M ₁ via the output port 33. As a result, the crane travels in the predetermined direction or the opposite direction while the forward rotation push button switch 17 or the reverse rotation push button switch 18 is being pressed, and stops when the predetermined position is reached by releasing the push button switch. Traverse trolley To traverse the trolley, look at the display device 12 and press the +/- pushbutton switch.
Operate 16 to set the value of “02”. This set numerical value is stored in a predetermined area of the RAM 36. In this state, the forward rotation push button switch 17 or the reverse rotation push button switch 18 is pushed in one stage or two stages as described above depending on whether the crane is traversed in a predetermined direction or the opposite direction at a low speed or a high speed. The contacts 17a, 18a or 17b, 18b are turned on, and the central processing unit 34 monitors this, and when it is turned on, the set value is "02".
The horizontal row corresponding to is read and the low speed or high speed forward or reverse rotation command is output to the motor M ₂ via the output port 33. As a result, the traverse trolley travels in a predetermined direction or in the opposite direction while the forward rotation push button switch 17 or the reverse rotation push button switch 18 is being pressed, and stops when the predetermined position is reached by releasing the push button switch.

When the hoist is to be wound up and down, the +/- push button switch 16 is operated while watching the display device 12 to set the value "03". This set numerical value is stored in a predetermined area of the RAM 36. Depending on whether the hoist hoisting or hoisting crane is operated at low speed or high speed in this state, the forward rotation push button switch 17 or the reverse rotation push button switch 18 is set to 1 as described above.
Push in two or two steps. The contacts 17a, 18a or 17b, 18b are turned on, and the central processing unit 34 monitors this. When turned on, the function corresponding to the set numerical value "03" is read out, and the output port 33
A low-speed or high-speed rotation command for forward rotation or reverse rotation is output to the motor M ₃ via. As a result, the hoist winds up or winds down while the forward rotation push button switch 17 or the reverse rotation push button switch 18 is being pressed, and stops when the push button switch is released when it reaches a predetermined position.

A function selection table A is pasted on the surface of the case 11, and the case 11
For convenience of operation, the instruction manual shown in FIG. 6 is attached to the back surface of the.

In addition, in the above-described embodiment, the case where the hoist is provided as the lifting device in the traverse trolley has been described as an example, but the lifting device is not limited to the hoist, and may be a lifting device that can lift and lower the luggage, and The traveling crane may be provided with a device for turning the lifting device, and the lifting device may be provided with a chucking device for gripping a load, so that the required functions can be increased both automatically and manually.

In the above embodiment, an example in which tabulated data as shown in FIG. 4 or 5 is stored in advance in a predetermined area of the RAM 36 has been described, but such data is stored in various push button switches of the operating device. Of course, it may be stored by operation.

Further, the operation device is provided with operation switches of a mode setting push button switch 15, a +/- push button switch 16, a forward rotation push button switch 17, a reverse rotation push button switch 18 and a start push button switch 19 on the surface of the case 11. Alone
Since the crane can be operated, the device does not have to be as large as a panel board unlike the conventional operation device shown in FIG. 7, and can be constructed in a small size. Further, the number of electric wires connecting the traveling crane and the operating device can be small, and a thin cable 21 is sufficient.

The push button switches are not limited to push button switches. For example, a slide type switch is turned on at the upper and lower positions and turned off at the neutral position. The type of switch is not limited as long as it is a switch that can obtain one OFF.

〔The invention's effect〕

As described above, according to the present invention, the following excellent effects can be obtained.

(1) Automatic / manual mode setting and various functions such as running, traverse, and elevating can be performed by operating the first, second, third, and fourth switches, so the number of parts to be operated is extremely small, and the operating device Can be made extremely small.

(2) Since the number of operating switches is small, the wiring for connecting the operating device and the crane is small, and a thin cable is sufficient.

[Brief description of drawings]

FIG. 1 is a diagram showing the appearance of an operating device for a traveling crane according to the present invention, FIG. 2 is a block diagram showing the configuration of a control device for processing a signal instructed by this operating device, and FIG. Figure showing the state divided into X and Y directions, Figure 4 shows the cargo handling address corresponding to location NO, Figure 5 shows each function corresponding to the set value, and Figure 6 shows the instruction manual. FIG. 7 and FIG. 7 are views showing the appearance of a conventional operating device for a traveling crane. In the figure, 10 ... Operating device, 11 ... Case, 12 ... Display device, 13 ... Manual display lamp, 14 ... Automatic display lamp, 15
…… Mode setting pushbutton switch, 16 …… +/- pushbutton switch, 17 …… forward rotation pushbutton switch, 18 …… reverse rotation pushbutton switch, 19 …… start pushbutton switch,
20 …… standby lamp, 21 …… cable.

Claims (1)

[Claims] 1. A traveling crane operating device comprising a traverse trolley and a lifting device provided on the traverse trolley, wherein a mode setting means for setting automatic operation and manual operation by a first switch operation, and the mode setting means. When the automatic setting is set, the cargo handling point of the cargo handling area is numerically set by the second switch operation, and when the manual mode is set by the mode setting means, the traveling and traverse are performed by the second switch operation. , Function setting means for setting various functions such as lifting and lowering numerically, display means for displaying the numerical values set by the cargo handling point setting means or function setting means, traveling motors of cranes, traverse motors, lifting motors, etc. Corresponding to the third switch for directing forward rotation and the fourth switch for directing reverse rotation, the numerical value set by the cargo handling point setting means or the function setting means. The cargo handling point or function is further provided with control means for outputting commands such as traveling, traversing, and ascending / descending to the crane according to the operation states of the third and fourth switches, and these switches and means are provided in the operation device housing. An operating device for a traveling crane characterized by being mounted.