JPH0221492Y2 - - 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 In works such as bypass construction, cables with different diameters or lengths are used. A cable payout and take-up device has been used which has a revolving body having a plurality of fixably pivoted cable drum mountings; however, this cable payout and 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 has the disadvantage of increasing the size of the device. A cable drum attached to an annular chain that is circulated by a chain drive, a cable drum fixing device that fixes this cable drum in a predetermined position, and a cable drum that is connected to the cable drum when the cable drum is 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 that the invention attempts to solve However, the cable drum is fixed and rotates;
Since the device is released and circulated, operation is complicated and requires skill, and there is a risk of damage to the device due to incorrect operation.

(4) Means for solving the problem In order to solve the above problem, the present invention selects a plurality of cable drums attached to an annular chain circulated by a chain drive device and these cable drums. a cable drum fixing device that fixes the cable drum at a predetermined position; and a cable drum drive device that is connected to the cable drum and rotates the cable drum when the cable drum is positioned at the predetermined position. In the device, when the cable drum is rotated, the cable drum fixing device fixes the cable drum, and then the cable drum drive device is activated, and when the annular chain is circulated, the cable drum fixing device operates after the cable drum fixing device fixes the cable drum. The chain drive device is activated after the chain is released.

(5) Effect With the above configuration, when the cable drum is rotationally driven, the cable drum fixing device first operates to fix the cable drum, and then the cable drum drive device operates to rotate the cable drum. When the annular chain is rotated and the annular chain is circulated, the cable drum fixing device is first activated to release the cable drum, and then the chain drive device is activated to circulate the annular chain and hold the cable drum in place. Move to the position.

(6) Examples Examples of the present invention will be described below 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 a cable drum fixing device constituted by a cylinder 22 is in a fixed position, and the gear 16 meshes with the gear 23 of the cable drum drive device 12, so that the gear 23 is driven by the motor 34. It is connected to the device 12 and driven to rotate. 1 and 2 are guides on which the rollers of the cable drum roll.

In the hydraulic circuit that drives the clamp cylinder 22, motor 34, and motor 35, as shown in FIG. The clamp operation valve 1 is connected to a motor 35 that circulates the cable drum through a solenoid valve 43.
5 is connected to a pair of clamp cylinders 22 via a pilot check valve 44, and the pipes connecting the clamp operation valve 15 and the clamp cylinders 22 are branched and connected to a rotary operation valve 46, and the clamp cylinders A sequence valve 45 is inserted into a pipe line branching from the pipe line on the side where the pressure becomes high when the cable drum 22 is expanded, and a rotation operation valve 46 is connected to a motor 34 that rotationally drives the cable drum.

As shown in FIG. 3, the control device for circulating the cable drum is such that the operating device 47 is connected in parallel to the solenoid 151 of the clamp operating valve 15 and the timer 48. The output side of the set timer 48 is the solenoid 151 and the solenoid 43 of the solenoid valve 43.
0, and by operating the operating device 47, the solenoid 151 and the timer 48 are activated simultaneously, and after the set time of the timer 48, the solenoid 430 is activated and the operation of the solenoid 151 is released. In the control device that drives the cable drum, as shown in FIG.
and the solenoid 460 or 461 of the rotary operation valve 46
By operating the operating device 49, the solenoid 150 and the solenoid 4 are connected in parallel.
60 or 461 operate simultaneously.

With the above configuration, the cable drums 6, 7,
When circulating 8, 9, and 10, the operation device 47
By operating the solenoid 151, the clamp operation valve 15 is switched to the c position, the clamp cylinder 22 is contracted, and after the clamp cylinder 22 is contracted, the clamp operation valve 15 is moved to the neutral position b.
At the same time, the solenoid 430 is activated and the solenoid valve 43 is switched to the b position, and the circulation operation valve 14 is switched to the b position, thereby driving the motor 35 to circulate the cable drums 6, 7, 8, 9, and 10. can be done.

When rotating the cable drums 6, 7, 8, 9, and 10, the solenoid 150 and the solenoid 460 or 461 are activated simultaneously by operating the operating device 49 while any cable drum is being circulated to a fixed position. Then, the clamp operation valve 15 is switched to the a position, and the rotation operation valve 46 is switched to the a position.
When switching to position or c position, the clamp cylinder 22 first extends, the cable drum is fixed, and the pressure in the extension side pipe becomes high, the sequence valve 45
When the cable drum opens, pressure oil is supplied to the rotary operation valve 46, and the motor 34 rotates, so that the cable drum rotates forward or reverse, and the cable is fed out or wound up.

(7) Effects of the invention As described above, according to the invention, due to the simple structure, when the annular chain is circulated, the cable drum fixing device operates first.
When the cable drum is released and the chain drive is then actuated to circulate the annular chain and move the cable drum to a predetermined position to drive the cable drum in rotation, the operation first releases the cable drum fixing device. The cable drum is actuated to fix the cable drum, and then the cable drum drive device is actuated to rotate the cable drum.
To provide a cable feeding and winding device that is easy to operate, does not require skill, and has no risk of damaging the device due to erroneous operation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a hydraulic circuit diagram of the main parts of the cable feeding and winding device, FIG. 2 is a side view showing the configuration of the cable feeding and winding device, and FIGS. 3 and 4. 1 is a block diagram of a control device; FIG. 6, 7, 8, 9, 10...cable drum, 1
DESCRIPTION OF SYMBOLS 1... Cable drum fixing device, 12... Cable drum drive device, 14... Circulation operation valve, 15...
...Clamp operation valve, 22...Clamp cylinder,
34, 35...Motor, 43...Solenoid valve, 45...
...Sequence valve, 46...Rotary operation valve, 47,4
9...Operating device, 48...Timer.

Claims (1)

[Scope of utility model registration request] A plurality of cable drums attached to an annular chain circulated by a chain drive device, a cable drum fixing device for selectively fixing these cable drums at predetermined positions, and when the cable drums are located at the predetermined positions. In a cable feeding and winding device equipped with a cable drum driving device that is connected to a cable drum and rotates the cable drum, when the cable drum is rotated, the cable drum fixing device fixes the cable drum. A cable feeding and winding device characterized in that, when the cable drum drive device is operated and the annular chain is circulated, the chain drive device is operated after the cable drum fixing device releases the cable drum.