JP2575293Y2 - Wire winding device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collective electric wire winding device capable of simultaneously winding or rewinding a plurality of electric wires at the time of new installation or replacement of a distribution line or a cable.

[0002]

2. Description of the Related Art A conventional electric wire winding apparatus used for electric wire winding work for replacing a transmission / distribution electric wire installed on a power pole is provided with winding winches on both sides of a carrier of a working vehicle, and the winch is hydraulically operated. Alternatively, there is known an apparatus in which an electric wire is wound by being driven by an engine of a car. Also, as another device, a special take-up drum is attached to the rear wheel of the work vehicle, and the rear wheel is jacked up and rotated while the rear wheel is floating, so that the take-up drum rotates and winds up Some are known. Usually, one overhead ground wire and three distribution lines are connected to a power pole. Therefore, in order to replace these distribution lines with the above-mentioned conventional apparatus, a worker must go up and down five times on a single power pole, and the work efficiency is very high since at least 5 to 6 workers are required. It was bad and required a lot of labor and work time. Further, conventionally, at least two vehicles, a pillar car for performing a hole moat and a pillar, and a winding vehicle for winding an electric wire, are required to perform an overhead wire work.
In addition, when replacing the distribution line, since it was previously stretched close to the live line in advance, there was a risk that time was required and an electric shock accident occurred. Further, since the conventional device does not have an overload stop device, there is a problem that safety is lacked due to an overload acting on an electric wire, causing disconnection, twisting of a distribution line arm and a power pole, and the like.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve all the problems of the conventional distribution line and cable winding work at the time of replacement of the distribution line and the cable. It is possible to collectively wind a plurality of electric wires by using the rotating force of the drill, and it is possible to adjust the rotating torque of each winding drum individually to prevent overload from acting. It is an object of the present invention to provide an electric wire collective winding device that can be transported to a pole and the like without any need for installation and installed at an arbitrary work place, and can perform winding and rewinding of the electric wire.

[0004]

SUMMARY OF THE INVENTION To solve the above-mentioned problems, the electric wire batch winding device of the present invention comprises a gantry, a drive shaft provided on the gantry, connected to a power unit and driven to rotate, and transmitted to the drive shaft. A winding drum is constituted by a driven shaft that is driven to rotate, and an inner drum frame of a winding drum attached to both ends of the driving shaft and the driven shaft. An outer drum frame is detachably attached to the inner drum frame. In addition, the present invention has been able to solve the above problem by a technique in which a plurality of electric wires can be simultaneously wound or unwound.

[0005] The drive shaft is connected to a main shaft that is driven to rotate by an auger drill of a power pole, which is a power unit, and is driven to rotate. The drive shaft, the driven shaft, and the inner drum frame form a preload adjusting mechanism. The driving torque is transmitted through the driving drum, and the rotational torque of each winding drum can be adjusted. The preload adjusting mechanism further includes a driving ring fixed to an outer surface of a sprocket wheel fixed to the driving shaft and the driven shaft, and a driving shaft and a driven shaft. A driven-side ring provided to face the drive-side ring on a side surface of a preload-adjustment flange provided on an inner drum frame fitted so as to be axially movable and rotatable through a preload-adjustment ring; It is desirable that the preload adjusting nut be tightened to adjust the frictional force between the driving side ring and the driven side ring. In addition, by providing an electromagnetic brake as an emergency stop device on either the drive shaft or the driven shaft, it is possible to prevent the winding drum from rotating backward when the transmission with the drive device is lost. In addition, by mounting height adjusting screws on the lower four sides of the gantry, the gantry can be installed horizontally even on uneven ground or the like.

[0006]

[Action] The outer drum frame is fixed to the inner drum frame with bolts and eye nuts, so that the winding drum can be removably assembled. If the ground at the work site is not horizontal, the stand is leveled by screws for height adjustment. Adjust so that it is installed. Also, by adjusting the degree of tightening of the preload adjusting nut, the inner drum frame moves in the axial direction along the drive shaft or the driven shaft, and the drive side fixed to the outer surface of the sprocket wheel fixed to the drive shaft and the driven shaft. The frictional force between the ring and a driven side ring provided on a side surface of a preload adjusting flange provided on an inner drum frame fitted to the drive shaft and the driven shaft so as to move and rotate in the axial direction can be adjusted. Therefore, if the tightening pressure of the nut 46 is adjusted in advance so that the winding drum transmits a constant torque according to the thickness of the electric wire and rotates integrally with the drive shaft and the driven shaft,
Normally, all winding drums rotate synchronously to wind a plurality of (eg, four) electric wires collectively. If an overload is applied to any of the wires, the preload adjusting mechanism causes a slip between the inner drum frame of the winding drum for winding the wire and the shaft, and the rotation of the winding drum is reduced. Stopping and disconnection accidents can be prevented beforehand.
Also, if the auger drill and the main shaft are disengaged during the winding operation and reverse rotation occurs due to the tension of the electric wire on the winding drum, the electromagnetic brake of the emergency stop device is operated to operate the driven shaft. A brake is applied to the rotation to prevent reverse rotation of the winding drum, thereby preventing unwinding of the electric wire.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The electric wire batch winding device of the present embodiment is configured to be able to collectively wind four electric wires, and the use state thereof is shown in FIG. In the figure, reference numeral 1 denotes a pole carriage,
It has an auger drill 2 for drilling holes. Reference numeral 3 denotes an electric wire batch winding device according to the present embodiment, which is configured to connect a main shaft to a tip of the auger drill, rotate a winding drum, and wind an electric wire or a rope laid on a utility pole 4. . Reference numeral 5 denotes a wire drawing roller provided on the telephone pole 4.
Reference numeral 6 denotes a retaining wire for connecting the electric wire collective winding device to a power pole in order to keep it from moving due to the tension of the overhead wire during the winding operation.

Next, the specific structure of the electric wire batch winding device will be described in detail with reference to FIGS. In the figure, reference numeral 10 denotes a main shaft. As shown in FIG. 5, the main shaft 10 is supported by bearings 16, 17, and 18 perpendicular to bearing stands 13 and 14 provided on the gantry 12, and the upper end thereof protrudes from the upper bearing stand 15. The shaft coupling portion 11 has a rectangular shape so as to be fitted in the auger bit locking hole at the lower end of the auger drill and transmit the rotational force. Reference numeral 19 denotes a sprocket wheel fixed to the main shaft 10, and the sprocket wheel and the upper bearing base 1
A transmission chain 22 is bridged between the transmission shaft 20 and a small-diameter sprocket wheel 21 provided on a transmission shaft 20 which is perpendicularly mounted on the transmission shaft 5 to increase the speed of rotation of the main shaft and transmit the rotation to the transmission shaft 20. The lower end of the transmission shaft 20 is transmitted via a differential gear device 23 to left and right drive shafts 25, 25 horizontally mounted on a gantry.

As shown in FIG. 6, sprocket wheels 26, 26 for transmitting rotation to driven shafts are fixed to the drive shafts 25, 25, and a drum inner frame 27 of a winding drum is provided on an outer extension thereof. , 27 are mounted. The inner frame 27 of the drum has an inner diameter of
, And a preload flange 29 is formed at the outer end thereof. A rubber ring 30 made of nitrile-butadiene rubber is fixed to an annular recess formed on the outer surface of the preload flange 29 so as to face a metal ring 31 made of a tough casting fixed to the outer peripheral surface of the sprocket wheel 26. Have been. Reference numeral 32 denotes a bearing fixed to the drive shaft, and the inner drum frame is slidably supported in the axial direction with respect to the bearing. Reference numeral 33 denotes a bearing fitted to the inner peripheral surface of the other end of the hub portion and fixed to the inner peripheral surface of the hub, and is slidable with respect to the drive shaft. 34 is a spring provided between the bearings 32 and 33,
The inner drum frame 27 is constantly urged away from the sprocket wheel 26. Reference numeral 35 denotes an inner drum frame flange, and a metal ring 36 similar to the metal ring 31 is fixed to an inner surface of the flange by bolts or the like.

Reference numeral 40 denotes a preload adjusting ring for adjusting the frictional force between the sprocket wheel and the inner drum frame.
6, a rubber ring 42 similar to the rubber ring 30 is attached and fixed. The preload adjusting ring also has a hub part inner diameter larger than the drive shaft 25,
The bearing 43 is supported by a bearing 43 fixed to the drive shaft by an O-ring to prevent movement in the axial direction, and the other end is fixed to the preload adjusting ring 40 so as to be movable in the axial direction. 44 and a bearing rotatably with respect to the drive shaft 25. The spring 4 is provided between the bearings 43 and 44.
5 is fitted and urges the preload adjusting ring away from the inner drum frame flange side. 46 is a preload adjusting nut screwed into a screw formed at the shaft end of the drive shaft,
By tightening the preload adjusting nut, the inner drum frame is pressed against the outer surface of the sprocket wheel to rotate integrally. 47 is an O-ring.

Reference numeral 50 in FIG. 2 denotes a driven shaft rotatably supported by the gantry 12 in parallel with the drive shaft, and driven sprocket wheels 51, 51 are fixed at both ends thereof, and the inner drum frame 27 is provided outside thereof. Is installed.
The structures of the driven sprocket wheel and the inner drum frame are the same as those of the sprocket wheel and the inner drum frame attached to the drive shaft, and have a preload adjusting mechanism similar to that shown in FIG. The driven shaft is rotationally driven by transmitting torque from a drive shaft via chains 53 provided on both sides thereof. Reference numeral 55 denotes an electromagnetic brake as a safety emergency stop device provided on the gantry, which can stop the rotation of the driven shaft by pressing against a brake disk 56 fixed to the driven shaft. The power source of the electromagnetic brake utilizes a battery of a pole carriage. Further, an emergency stop switch for operating the electromagnetic brake is provided at a place where a driving operation is performed so that the emergency stop switch can be operated immediately when an accident occurs. Numeral 57 denotes an outer drum frame, which can be detachably fixed to the inner drum frame by bolts 58 protrudingly provided on a winding drum side wall 58 of the inner drum frame, and wound around the inner drum frame and the outer drum frame. The taking drum 52 is constituted. The gantry 12 is shown in FIG.
As shown in (1), height adjusting screws 60 are provided on the lower four sides, and when installed on uneven ground, the gantry is adjusted by the screws to be horizontal. Further, a ground 61 is provided on the gantry for safety.

The electric wire batch winding device of the present embodiment is configured as described above, and the outer drum frame 5 is attached to the inner drum frame 27 in advance.
The take-up drum 52 is assembled by fixing 7 with bolts 58 and eye nuts. The rubber ring 30 of the inner drum frame 27 is pressed against the metal ring 31 fixed to the sprocket wheel 26, and the metal ring 36 provided on the inner drum frame flange is the rubber ring 4 of the preload adjusting ring.
2, the tightening pressure of the preload adjusting nut 46 is adjusted in advance so that the winding drum transmits a constant torque according to the thickness of the electric wire and rotates integrally with the drive shaft 25.
Then, when the ground at the work site is not horizontal, the gantry is adjusted to be horizontal by height adjusting screws 60 and installed, and the auger bit at the tip of the auger drill 2 is removed as shown in FIG. By setting the main shaft 10 of the electric wire collective winding device to be fitted in the bit locking hole, and locking the ends of the four electric wires wired on the electric pole 4 to the four winding drums, respectively. Four electric wires can be wound at once. Further, by connecting the other end of the wire to be replaced to the end of the wire to be newly wired, it is possible to wire the old wire at the same time as winding the old wire.

When the auger drill 2 is rotationally driven in this state, its rotational force is transmitted to the main shaft 10 of the electric wire batch winding device, and the rotation of the main shaft is accelerated via the sprocket wheel 19, the chain 22, and the sprocket wheel 21. Then, the transmission shaft 20 is rotated, the left and right drive shafts 25 are rotated by the differential gear mechanism, and the driven shaft 50 is also driven at the same speed via the sprocket wheel 26, the chain 53, and the driven sprocket wheel 51 by the rotation of the drive shaft. To start rotation. At that time, the rotation of the drive shaft 25 and the driven shaft 50 is controlled by the sprocket wheel 26, the metal ring 31, the rubber ring 3
0, transmitted to the inner drum frame 27 via the preload flange 29, and the four winding drums rotate at the same time with a constant torque adjusted by the tightening pressure of the preload adjusting nut 46;
Four wires can be wound simultaneously. Therefore, the rotational torque can be arbitrarily adjusted by adjusting the tightening force of the preload adjusting nut 46, and when the electric wire is stretched, a load exceeding the set torque acts due to the connection portion biting into the wheel and so on. When this occurs, slippage occurs between the metal ring and the rubber ring to stop the rotation of the winding drum, and it is possible to prevent accidents such as disconnection or twisting of the distribution line arm and power pole. Further, in the present apparatus, since the preload adjusting device is provided for each of the four winding drums, the rotational torque can be adjusted for each individual drum. In the event that the auger drill 2 and the main shaft 10 are disengaged during the winding operation and the winding drum reversely rotates due to the tension of the electric wire, the electromagnetic brake 55 of the emergency stop device is actuated. A brake is applied to the rotation of the driven shaft to prevent reverse rotation of the winding drum, thereby preventing unwinding of the electric wire. When the winding of the electric wires is completed, the outer drum frame 57 is detached from the inner drum frame 27, so that the wound electric wires are detached from the winding drum, and can be individually arranged by binding with a string.

The above description is for the case of winding an electric wire with this device. Conversely, a new electric wire coil can be set in the device and used as a rewinding device in the work of wiring the electric wire. In that case, loosen the preload adjustment nut,
By separating the contact between the metal ring 31 and the rubber ring 30 and the contact between the metal ring 36 and the rubber ring 42 by the restoring force of the springs 34 and 45, the transmission of each winding drum with the driving shaft and the driven shaft is released, and each of the winding drums is free. Rotate. As mentioned above, although one Example of the electric wire batch winding apparatus of this invention was described in detail, this invention is not limited to the said Example, Various design changes are possible. For example, in the above-described embodiment, one driven shaft is transmitted to the drive shaft so that four wires can be wound simultaneously. However, for example, the number of driven shafts is increased to two and six wires are simultaneously driven. It is also possible to be able to take up. Further, the transmission mechanism between the main shaft and the drive shaft is not necessarily a differential gear mechanism, but may be a simple bevel gear mechanism or any other mechanism capable of transmitting torque to the cross shaft. Further, as the power unit, it is desirable to use the power of a pole carriage, but in some cases, a separately provided motor, engine, or the like may be employed. It goes without saying that the electric wire collective winding device of the present invention can be applied not only to distribution lines wired to telephone poles, but also to cable winding and unwinding in underground line construction. Therefore, the term "electric wire" described in the claims for utility model registration is used not only for distribution lines but also for cables and ropes.

[0015]

[Effects of the Invention] The present invention is configured as described above and has the following special effects. Since a plurality of electric wires can be wound simultaneously and collectively, the number of times of ascending and descending to and from the electric pole can be reduced as compared with the conventional case, so that the winding operation can be shortened and labor costs can be reduced. In addition, it can be transported to a pole, etc. without any special work vehicle and installed in any work place. Can be used for hole drilling, pole construction, and wire winding. Furthermore, since the rotating torque of each winding drum can be individually adjusted to prevent an overload from acting, accidents such as disconnection and twisting of distribution line arm and power pole can be prevented, and safety and workability are improved. Are better. Furthermore, according to the configuration of claim 4, when the auger drill is disengaged from the main shaft during the winding operation and the winding drum reversely rotates due to the tension of the electric wire, the reverse rotation of the winding drum is immediately performed. It is possible to prevent the unwinding of the electric wire and prevent an accident. Furthermore, according to the configuration of the fifth aspect, it is possible to safely install the device on a sloped land, uneven land, or the like.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of the electric wire batch winding device of the present invention.

FIG. 2 is a plan view of the electric wire batch winding device according to the embodiment of the present invention;

FIG. 3 is a side view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a side view of a main shaft portion.

FIG. 6 is a partial cross-sectional front view of a drive shaft portion.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Construction vehicle 2 Auger drill 3 Electric wire collective winding device 4 Electric pole 10 Main shaft 19,21,26,51 Sprocket wheel 20 Transmission shaft 25 Drive shaft 27 Inner drum frame 29 Preload adjusting flange 30,42 Rubber ring 1,36 Metal ring Reference Signs List 40 Preload adjustment ring 46 Preload adjustment nut 50 Follower shaft 55 Electromagnetic brake 57 Outer drum frame 60 Height adjustment screw

Claims (5)

(57) [Scope of request for utility model registration] 1. A gantry, a drive shaft provided on the gantry, connected to a power device and driven to rotate, a driven shaft transmitted to the drive shaft and driven to rotate, and attached to both ends of the drive shaft and the driven shaft. The outer drum frame is detachably attached to the inner drum frame to form a winding drum, and a plurality of electric wires can be wound or unwound simultaneously. An electric wire batch winding device characterized by the above-mentioned. 2. The drive shaft is connected to a main shaft rotatably driven by an auger drill of a power pole as a power unit, and is driven to rotate. The drive shaft, the driven shaft and the inner drum frame are pressurized and adjusted. 2. The electric wire collective winding device according to claim 1, wherein the transmission torque is transmitted through the first winding drum and the rotation torque of each winding drum can be adjusted. 3. The pressurizing adjustment mechanism is fitted to a drive side ring fixed to an outer surface of a sprocket wheel fixed to a drive shaft and a driven shaft so as to be axially movable and rotatable with the drive shaft and the driven shaft. A driven side ring provided on the side surface of a preload adjusting flange provided on the inner drum frame so as to face the driving side ring is tightened by a preload adjusting nut via the preload adjusting ring, and the driven side ring is driven. The electric wire collective winding device according to claim 2, wherein the frictional force with the side ring can be adjusted. 4. The electric wire collective winding device according to claim 1, wherein an electromagnetic brake is provided as an emergency stop device on one of the drive shaft and the driven shaft. 5. The apparatus according to claim 1, wherein said mount has height adjusting screws attached to four lower portions.
3 or 4 electric wire batch winding device.