JPH0661891U - Rewinding winch for crane - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The purpose is to enable easy replacement of crane wires. [Structure] A rotating disk 3 having a support shaft 2 connected to a drive motor 4 is installed on a gantry 1, and a wire guide 7 which is moved along a guide frame 5 by a cylinder 6 is provided on the gantry 1. It is characterized in that the wire 8 is sequentially guided by the wire guide 7 to the drum 9 installed on the support shaft 2 and is wound evenly.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winch used when replacing a wire of a crane.

[0002]

[Prior art]

 Crane wires typically have a diameter of 20-30 mm and a length of 200-300 m and need to be replaced if they become damaged by long-term use. To replace such a wire, first remove the damaged old wire and then attach a new one.

Therefore, in order to remove the old wire, the winch of the crane is freed or unwound, and an operator manually pulls it out to carry out alignment disposal. Next, to wind the new wire around the drum of the crane, the tip of the new wire wound around the wooden drum is tied to the drum and wound by the power of the crane. In order to wind tightly without loosening, the wire is wound by braking on the wooden drum side or adding a weight.

[0004]

[Problems to be solved by the device]

 However, according to the conventional technology as described above, the old wire pulled out manually from the crane is very long and heavy, and since it has the rigidity and elasticity peculiar to steel, matching disposal after removal is a difficult task. , Was a big problem. In addition, when installing a new wire, there is a problem that the wire to be unwound must be loaded because it has to be tightly wound around the drum of the crane, and that means must be installed in parallel, which is a combination of the above problems. It was a difficult task that required a great deal of manpower and working time.

[0005]

[Means for Solving the Problems] Accordingly, the present invention provides a wire disk which is provided with a rotating disk having a support shaft connected to a drive motor, and which is moved by a cylinder along a guide frame on the table. It is characterized in that an id is provided, and the wire guide allows the wire to be wound up evenly while being sequentially projected on the drum installed on the support shaft.

[0006]

[Action]

 According to the above configuration, when the wire is wound around the empty drum, the wire can be sequentially guided by the wire guide and wound evenly. Further, when the wire is unwound from the drum, the wire guide can be fixed so that the wire can be unwound from a certain position.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view. In the figure, reference numeral 1 is a gantry, on which a rotating disk 3 having a support shaft 2 is installed. The rotating disk 3 is driven by a drive motor 4 provided on the frame 1.

Further, a wire guide 7 which is moved by a cylinder 6 along a guide frame 5 is provided on the gantry 1, and the wire guide 7 sequentially guides a wire 8 passing therethrough up and down. It is to be wound up, and the movement of the cylinder 6 is synchronized with the rotation of the rotating disk 3. According to the above construction, first, in order to wind up the old wire to be replaced, which has already been installed on the crane, the empty drum 9 is fitted on the support shaft 2 and fixed to the rotating disk 3 with bolts.

Therefore, by connecting the tip of the wire to the drum 9 and rotating the rotating disk 3 to rotate the drum 9, the cylinder 6 of the wire guide 7 is synchronously moved up and down by the rotation of the drum 9. The wire can be wound evenly on the drum 9 in order. At the time of this winding, the wire can be tightly wound around the drum 9 without slack by winding the crane drum side while controlling the amount of the winding, while applying the brake.

Next, in order to lay a new wire on the crane, the drum around which the new wire is wound is fitted on the support shaft 2 and attached to the rotating disk 3 with bolts. The wire can be extended from the attached drum, the tip of the wire can be bound to the crane drum, and the crane drum can be rotated to wind it around the crane drum.

At the time of this winding, in order to control the amount of payout on the side of the wound drum, it is taken out while applying a break. Therefore, during this unwinding, the cylinder 6 is not driven, the wire guide 7 does not move up and down, and is in a stopped state at a desired position, whereby the wire is unwound from a certain position. It will be wound on the drum in order and evenly.

[0012]

[Effect of device]

 According to the present invention described in detail above, a rotating disk having a support shaft connected to a drive motor is installed on a frame, and a wire guide that moves by a cylinder along a guide frame is provided on the frame. By winding the wire sequentially around the drum installed on the support shaft by the wire guide and winding it evenly, it is possible to wind the wire while guiding it sequentially by the wire guide when winding the wire on the empty drum. It has the effect of enabling even winding.

Further, when the wire is paid out from the drum, by fixing the wire guide, there is an effect that the wire can be paid out from a fixed position. Further, since the support shaft is upright on the gantry, the drum can be easily attached and detached, and as described above, the wire guide can be moved to uniformly wind the drum.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an example.

[Explanation of symbols] 1 cradle 2 support shaft 3 rotating disk 4 drive motor 5 guide frame 6 cylinder 7 wire guide 8 wire 9 drum

Claims (1)

[Scope of utility model registration request] 1. A rotating disk having a support shaft connected to a drive motor is installed on a frame, and a wire guide which is moved by a cylinder along a guide frame is provided on the frame.
A wire rewinding winch for a crane, characterized in that the wire guide sequentially guides the wire to a drum installed on a support shaft so that the wire is wound evenly.