JPH0740675U - Operating device for winding drum - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to check the position of the tip of the rope unwound from the winding drum. [Structure] A display unit 9 is provided on an operation panel for operating the winding and unwinding of the rope 7 of the winding drum 6 so that the unwinding length of the rope 7 can be displayed. Based on the signal of the rotation amount of the winding drum 6 detected by the rotation detector 11, an output command of the rope payout length calculated by the calculator 10 is sent to the display unit 9. The operator 5 can confirm the rope tip position by visually recognizing the rope payout length.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winding drum operating device for operating a winding drum used in an overhead crane, a hoist, a sluice gate or the like.

[0002]

[Prior art]

 For example, as shown in FIG. 2, in a factory 1 having 5 floors (floor levels are indicated by F1 to F5), when carrying a work for transporting a suspended load 3 using an overhead crane 2, a suspension as a control panel is used. An operator 5 operates the push button box 4 to drive the winding drum 6 of the overhead crane 2 so as to wind up or roll out the rope 7 and handle the suspended load 3.

[0003]

[Problems to be solved by the device]

 However, in the case of the work of transporting the suspended load 3 by the above-mentioned overhead crane 2, since it is a high lift work and the landing position of the suspended load 3 is far from the operator 5, the operator 5 moves the tip position of the rope 7 Since it is difficult to confirm, the landing of the suspended load 3, ground cutting, etc. are performed by the intuition of the operator 5 and the signal with the slinger, and there is a problem that the skill of the operator 5 is required.

[0004] Incidentally, there is a crane operation panel in which the number of times the switch is operated, the frequency of use, etc. are stored and displayed as necessary (Japanese Patent Publication No. 62-28077). , There is no function that makes it possible to confirm the tip position of the rope numerically.

Therefore, the present invention allows the operator to numerically confirm the position of the tip of the rope, so that the operator can easily perform a high lift operation without requiring any skill. Is to provide.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides an operation panel for winding and unwinding a rope by a winding drum with a display unit for displaying the length of the rope unwound and for displaying the rotation amount of the winding drum. Based on this, it is configured to include a computing unit that calculates the payout length of the rope and sends an output command to the above display unit.

[0007]

[Action]

 When the rope is unwound from the winding drum, the length of the unwound rope is calculated by the calculator and displayed on the display of the operation panel, so that it can be visually recognized by the operator.

[0008] Therefore, for example, in the case of operating an overhead crane, the operator can confirm the tip position of the rope even in high lift work, so that the landing position of the suspended load and the ground cutting position can be determined.

[0009]

【Example】

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

FIG. 1 shows an embodiment of the present invention. In order to operate the overhead crane 2 shown in FIG. 2, the rope 7 is wound from a winding drum 6, and the rope 7 is lowered and stopped. A display section 9 for displaying the length of the rope 7 unwound from the winding drum 6 is provided at a required position on the surface of the hanging push button box 4 provided with the operation push button 8 of FIG. The display unit 9 is provided with a computing unit 10 for determining the payout length of the rope 7 and issuing an output command. The computing unit 10 is connected to the display unit 9 to form a winding drum operating device.

The arithmetic unit 10 extends the rope based on a signal from the rotation detector 11 that detects the rotation amount (rotation angle) of the winding drum 6 and data such as the diameter and the thickness of the winding drum 6. The length (m) is calculated and an output command is sent to the display section 9 of the hanging pushbutton box 4.

When the overhead drum 2 is operated by the operator 5 to carry the suspended load 3 by using the winding drum operation device having the above-described configuration, the rotation detector 11 is detected. Since the payout length of the rope 7 from the winding drum 6 calculated by the calculator 10 based on the signal is displayed on the display 9 of the hanging pushbutton box 4, the operator 5 gives the payout length of the rope 7. Can be visually recognized as a numerical value, so that the position of the hook, which is the tip position of the rope 7, can be easily confirmed even at a remote position where it is difficult to visually confirm. Therefore, the operator 5 can determine the landing position or the ground cut position of the suspended load 3 without relying on the intuition or a signal from the slinger, and thus the operator 5 does not need to be skilled.

In the above-mentioned embodiment, the case where it is adopted for the hanging push button box of the overhead crane is shown, but the same applies to, for example, the operation panel for the winding drum of the hoist or the operation panel for the winding drum of the sluice gate. It goes without saying that various modifications can be made without departing from the scope of the present invention.

[0014]

[Effect of device]

 As described above, according to the winding drum operating device of the present invention, since the operation panel is provided with the display unit for displaying the payout length of the rope calculated by the calculator based on the rotation amount of the winding drum. The rope payout length can be visually recognized as a numerical value.Therefore, when it is used for operating an overhead crane or hoist, the position of the suspended load can be easily checked even during high lift work. It is possible to judge the landing position of the suspended load and the ground cutting position without requiring the operator to be skilled, and the position of the gate can be confirmed at a high place even for the operation of the sluice gate. Produce the excellent effect of.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a winding drum operating device of the present invention.

FIG. 2 is a schematic diagram showing an example of a suspended load carrying work using an overhead crane.

[Explanation of symbols]

 4 Hanging pushbutton box (operation panel) 6 Winding drum 7 Rope 9 Display unit 10 Computing unit

Claims (1)

[Scope of utility model registration request] 1. A control panel for controlling the winding and unwinding of the rope by a winding drum is provided with a display section for displaying the unwinding length of the rope, and the unwinding length of the rope is displayed based on the rotation amount of the winding drum. An operating device for a winding drum, comprising an arithmetic unit that calculates and sends an output command to the display unit.