JPH0336172Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to a cable feeding and winding device used in power distribution line construction such as bypass construction.

(2) Conventional technology Cables of different diameters or lengths are used in work such as bypass construction. A cable pay-out and take-up device having a revolving body having a plurality of fixedly pivotally supported cable drum mounting portions has been used, but this cable pay-out take-up device is limited by the size of the cable drum. Therefore, in order to use a large-diameter cable drum, the number of cable drums must be reduced, and the arm must be reinforced to cope with the increased weight, which increases the size of the device. It had a cable drum installed at different positions of the circulating annular chain, a cable drum fixing device to fix this cable drum in a predetermined position, and a cable drum fixing device to fix the cable drum in a predetermined position. A cable payout and winding device has been devised by the applicant, which includes a cable drum drive coupled to drive a cable drum in rotation.

(3) Problems to be solved by the invention However, the connection between the cable drum and the cable drum drive device is achieved by the gear fixed to the shaft of the cable drum meshing with the gear of the cable drum drive device. There was a problem that if the teeth of both gears ran over each other, the meshing could not be carried out smoothly, resulting in a large shock during meshing.

(4) Means for solving the problem In order to solve the above problem, the present invention fixes a gear to the rotating shaft of a cable drum attached to a circulating annular chain, and fixes this cable drum in a predetermined position. In the cable feeding and winding device in which the gear fixed to the rotating shaft of the cable drum meshes with the gear of the cable drum drive device, the gear comes into contact with the outer periphery of the cable drum, thereby stopping the circulation of the annular chain. It is equipped with a cable drum rotation device that rotates the cable drum.

(5) Effect With the above configuration, by circulating the annular chain and moving the cable drum to a predetermined position, the outer periphery of the cable drum contacts the cable drum rotating device, rotates the cable drum, and rotates the cable drum. The gear fixed to the rotating shaft meshes with the gear of the cable drum drive in a rotating state.

(6) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 2, an annular chain 5 is looped between a pair of sprockets 3 and 4 which are each pivotally supported on a frame (not shown) provided on a loading platform, etc., and one sprocket 4 is motor 3
Five cable drums 6, 7, 8, 9, and 10 are attached to the annular chain 5 at predetermined distances from each other by brackets 36, 37, 38, 39, and 40, respectively. Gears 16 and 1 are on each side of 7, 8, 9, and 10.
7, 18, 19, 20 are fixed to the shaft of the cable drum, and rollers 26, 27, 28, 29, 30 are rotatably attached to both ends of the shaft of each cable drum. A cable drum fixing device 11 for fixing any cable drum is provided on the outside, a pair of cams 21 for positioning the cable drum by contacting the rollers of the cable drum, and a clamp having a clamp 13 at the tip for fixing the rollers. The cable drum 6 fixed by the cable drum fixing device constituted by the cylinder 22 is in a fixed position, and the gear 16 meshes with the gear 23 of the cable drum drive device, so that the gear 23 is driven by the motor 34. 12 and is rotationally driven. Below the axis of the sprocket 4, cable drums 6, 7, 8,
A cable drum rotation device 14 is provided which rotates the cable drum by contacting the outer circumferences of the cable drums 9 and 10. 1 and 2 are guides on which the rollers of the cable drum roll.

As shown in FIG. 1, the cable drum rotating device 14 has a contact plate 41 having a curved tip attached to a frame 15 so as to be able to swing vertically with a horizontal pin 42, and a non-slip surface on the surface of the contact plate 41. The contact plate 41 is biased downward by a spring 44 installed between the contact plate and the frame. and rotates the cable drum as the cable drum moves.

With the above configuration, when performing work, the motor 35 is driven to circulate the annular chain 5 counterclockwise in the figure, and the cable drum 6 to be used is moved around the cable drum as shown in FIGS. 1 and 2. When the cable drum 6 approaches the cable drum fixing device 11 by moving it toward the fixing device 11 side, the outer periphery of the cable drum 6 comes into contact with the contact plate 41 of the cable drum rotating device 14, and the cable drum 6 and gear 16 rotate. while moving to the position of the cable drum fixing device 11. When the roller 26 of the cable drum 6 is positioned at the holding part of the cam 21, the gear 16 of the cable drum 6 rotates and meshes with the gear 23 of the cable drum drive device 12, and in this state, the annular chain 5 is rotated. By stopping the circulation, the roller 26 of the cable drum 6 is positioned by the holding part of the cam 21.

Next, the clamp cylinder 22 is extended, the clamp 13 is pressed against the roller 26, and the roller 26 is sandwiched between the holding part of the cam 21 and the clamp 13, thereby fixing the cable drum 6 and operating the cable drum drive device 12. By doing so, the cable drum 6 is rotationally driven, and the cable is fed out,
Alternatively, a winding operation is performed.

That is, the gear 16 of the cable drum 6 rotates while the gear 23 of the cable drum drive device 12 rotates.
Because of this, the teeth of both gears 16 and 23 are less likely to run over each other, resulting in smooth engagement, and the chain 5 that circulates the cable drum.
There is no possibility that an excessive load will be applied to the motor 35 or the like.

When changing the rotationally driven cable drum,
The motor 34 of the cable drum drive device 12 is stopped, the clamp cylinder 22 is contracted,
The clamp 13 is separated from the roller 26 to release the fixation of the cable drum 6, and then the motor 35 is driven to circulate the annular chain 5, thereby moving the roller 26 from the holding part of the cam 21 and simultaneously moving the cable drum 6. The meshing between the gear 16 of the cable drum drive device 12 and the gear 23 of the cable drum drive device 12 is released to remove the cable drum 6 from the fixing device 11, and the cable drum to be used next is moved to the cable drum fixing device 11 by circulation of the annular chain 5. do.

(7) Effects of the invention As described above, according to the invention, the gear of the cable drum attached to the annular chain and the cable drum drive device can be connected with a simple structure and without the need for any other power or operation. A cable feeding and winding device capable of smoothly meshing gears is provided.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view showing the structure of a cable feeding and winding device, and FIG. 2 is a detailed view of a cable drum rotating device. 6, 7, 8, 9, 10...cable drum, 1
1... Cable drum fixing device, 12... Cable drum driving device, 14... Cable drum rotating device, 16, 17, 18, 19, 20... Gear,
23...gear, 41...contact plate, 44...spring.

Claims (1)

[Scope of utility model registration request] By fixing a gear to the rotating shaft of a cable drum attached to a circulating annular chain and moving this cable drum to a predetermined position, the gear fixed to the rotating shaft of the cable drum meshes with the gear of the cable drum drive device. What is claimed is: 1. A cable pay-out and take-up device adapted to fit the cable drum, comprising: a cable drum rotating device that contacts the outer circumferential portion of the cable drum and rotates the cable drum by circulation of an annular chain.