JPH0713891U - Wire rope winding device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] When the wire rope is wound from the drum wrapped with the wire rope to the winch, the wire rope is wound on the drum by the pulling force of the winch. Make sure that the wire rope is securely wound on the winch. [Structure] Between the drum 1 around which the wire rope 3 is wound and the winch around which this wire rope is wound, a control drum 5 having a body whose center is narrowed from both ends is arranged, and the wire rope 3 is wound several times. It is characterized in that it is wound and the rotation of the control drum 5 is controlled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for winding a new wire rope around a winch of a crane.

[0002]

[Prior art]

 When the new wire rope is wound around the winch of the crane, the new wire rope is wound around the wooden drum, and the end of the wire rope is set on the drum of the crane and it is taken up by the rotating force of the crane winch. However, at that time, it is required to apply load tension to the wire rope and tightly wind it in order while tightly packing it in the winch of the crane. For that purpose, for example, for a wire rope with a large diameter such as a diameter of 30 mm, a load tension of 10 t or more is required.

In order to apply such a large load, the rotation of the wooden drum set on the main shaft of the wrench worker is braked to pull out the wire rope.

[0004]

[Problems to be solved by the device]

 According to such a conventional technique, a large load is applied to the drawn wire rope, and therefore the rotation of the wooden drum is controlled with a large braking force. The wire rope that is pulled out into the layer below the wire rope that is wound in several layers interrupts and enters the wire rope, causing a disordered winding state, causing a problem of scratching the wire rope.In severe cases, cut firmly. There is a problem that it cannot be unrolled.

Further, since the winch cannot be wound up with a sufficient tensile force, there is a problem that the winch cannot be firmly wound around the winch, resulting in a slippery state.

[0006]

[Means for Solving the Problems]

 Therefore, in the present invention, a control drum having a body whose center is narrowed from both ends is arranged between a drum around which the wire rope is wound and a winch around which the wire rope is wound, and the wire rope is wound several times. It is characterized by controlling the rotation of this control drum as well as the rotation.

[0007]

[Action]

 According to the above configuration, the braking between the control drum increases the friction between the cylinder and the wire rope, and the central part of the cylinder of the control drum has a diameter smaller than both ends. When the tension of the winch acts on the wound wire rope, the wire rope is concentrated in the central portion, and the wound wire ropes come into close contact with each other to exert a braking action.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is an overall explanatory view, FIG. 2 is a perspective view of a control drum, FIG. 3 is an enlarged front view, and FIG. 4 is a side view. In the drawing, 1 is a wooden drum, and I have The wrench worker main shaft 2 is connected to a rotation control device (not shown).

Reference numeral 3 is a wire rope wound around the wooden drum 1, and 4 is a rope guide for guiding the wire rope 3 fed from the wooden drum 1. Reference numeral 5 denotes a control drum, the rotation of which is controlled by a shaft 7. The shaft 7 is connected to a rotation control device (not shown) different from the above. The body 6 of the control drum 5 has a curved diameter that is narrowed from both ends toward the center. The wire rope 3 is wound around the body 6 several times and the tip is set on a winch of a crane (not shown). To do.

The wire rope 3 set in this way is wound around a winch of a crane. At this time, the wooden drum 1 and the control drum 5 are braked, and the wire rope 3 from the wooden drum 1 is also wound. The pulling force A applied to the control drum 5 is smaller than the pulling force B applied to the wire rope 3 from the control drum 5, so that the control drum 5 receives the pulling force of the winch and the pulling force of the winch is not directly transmitted to the wooden drum 1. It is.

This is because by applying proper braking to the control drum 5, the friction between the body 6 and the wire rope 3 increases, and the center portion of the body 6 of the control drum 5 has a diameter smaller than that of both side ends. Therefore, when the pulling force of the winch acts, the wire ropes 3 wound several times are concentrated in the central portion, so that the wire ropes 3 wound adjacent to each other firmly contact each other. The braking action will work.

Therefore, regarding the braking action of the wire rope 3 by the control drum 5, not only the braking ability of the control drum 5 but also the number of windings around the control drum 5 is a major factor of the braking action. As a result, the pulling force of the winch is controlled by the control drum 5, and the strong pulling force is not applied to the wire rope 3 behind the control drum 5, and the wire rope 3 is wound around the layers of the wooden drum 1. There is no need to interrupt a layer below.

In the above description, the wire rope is wound around the winch of the crane. However, the present invention is not limited to the winch of the crane, and the wire rope can be unwound from the winding drum. It is always valid for any kind of winding.

[0014]

[Effect of device]

 According to the present invention described in detail above, a control drum having a body whose center is narrowed from both ends is arranged between the drum around which the wire rope is wound and the winch around which the wire rope is wound. By winding the wire rope several times and controlling the rotation of this control drum, the tension of the winch is received by the control drum and the pulling force of the winch is not directly transmitted to the drum side where the wire rope is wound. As a result, the wire rope does not bite into the layer below the drum around which the wire rope is wound, and the wire rope on the drum is prevented from becoming irregularly wound.

Further, since the winch can wind the wire rope with a sufficient tensile force, there is an effect that the wire rope can be tightly and tightly wound around the winch.

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing an embodiment.

FIG. 2 is a perspective view of a control drum.

FIG. 3 is an enlarged front view of the same.

FIG. 4 is a side view of the same.

[Explanation of sign]

 1 Wooden drum 3 Wire rope 5 Control drum 6 Body

Claims (1)

[Scope of utility model registration request] 1. A control drum having a body whose center is narrowed from both ends is arranged between a drum around which the wire rope is wound and a winch around which the wire rope is wound, and the wire rope is wound several times. A wire rope winding device characterized by controlling the rotation of this control drum.