JPH0574114U - Electric wire batch winding device - Google Patents

Abstract

(57) [Summary] [Purpose] Using the rotational force of an auger drill for a construction column vehicle, four electric wires can be wound up and unwound together, and the rotational torque of each winding drum can be adjusted individually. [Structure] A drive shaft 25 and a driven shaft 50 provided on a gantry 12 are rotatably driven by being transmitted to an auger drill of a building column vehicle via a main shaft 10, and through a preload adjusting mechanism at both ends of the drive shaft and the driven shaft. The rotation torque of each winding drum can be adjusted by mounting the inner drum frame of the winding drum so as to be transmitted and adjusting the tightening pressure of the preload adjusting nut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric wire batch winding device capable of simultaneously winding or unwinding a plurality of electric wires at the same time when newly installing or replacing a distribution line or a cable.

[0002]

[Prior Art]

 A conventional electric wire winding device used for electric wire winding work for replacing a transmission and distribution electric wire that is installed on a utility pole is provided with a winding winch on both sides of a loading platform of a work vehicle, and the winch is a hydraulic device or a vehicle engine. It is known that the electric wire is driven to wind the electric wire. Also, as another device, a dedicated 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 is rotated and wound up. Something that has been done is known. Normally, one overhead ground wire and three distribution lines are installed on the utility pole. Therefore, in order to replace these distribution lines with the above-mentioned conventional equipment, the worker has to go up and down five times on one pole, and at least 5 to 6 workers are required, resulting in poor work efficiency. It was always bad and required a great deal of labor and work time. Further, in the past, at least two vehicles were required to carry out the overhead line work: a construction pillar car for performing an excavation and a building pillar, and a winding car for winding an electric wire. In addition, when replacing the distribution line, it was traditionally used to stretch the wires close to the live line in advance, which took time and could cause an electric shock accident. In addition, since the conventional device does not have an overload stop device, there is a problem in that the electric wire is overloaded and the wire is broken or the power distribution line arm or the electric pole is twisted, resulting in poor safety.

[0003]

[Problems to be solved by the device]

 The present invention is intended to solve all the problems of the conventional distribution line and cable winding work at the time of replacing the above-mentioned conventional distribution line and cable. It is possible to wind all the electric wires together, and to adjust the rotating torque of each winding drum individually to prevent an overload from acting. Furthermore, there is no need for a special work vehicle. It is an object of the present invention to provide an electric wire batch winding device that can be transported to a vehicle or the like and installed in an arbitrary work place, and can wind and rewind electric wires.

[0004]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION The above-mentioned problems are, in the wire bundle winding device of the present invention, a mount, a drive shaft mounted on the mount and driven to rotate by a power unit, a driven shaft driven to rotate by the drive shaft, and the drive. It consists of the inner drum frame of the winding drum attached to both ends of the shaft and the driven shaft, and the outer drum frame is detachably attached to the inner drum frame to form the winding drum, and multiple wires are wound simultaneously. It was possible to solve the problems by the technical means characterized by being able to take up or rewind.

The drive shaft is rotationally driven by being connected to a main shaft that is rotationally driven by an auger drill of a building car that is a power unit, and the drive shaft, the driven shaft, and the inner drum frame are preload adjusting mechanism. The preload adjusting mechanism includes a drive side ring fixed to the outer surface of the sprocket wheel fixed to the drive shaft and the driven shaft, and a drive shaft and a drive shaft. A preload adjusting ring is provided on a side surface of a preload adjusting flange provided on an inner drum frame fitted to the driven shaft so as to be axially movable and rotatable, and a driven side ring provided so as to face the drive side ring. It is desirable that the preload adjustment nut is used to tighten it to adjust the frictional force between the driving side ring and the driven side ring. Further, 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 take-up drum from rotating in the reverse direction when the transmission with the drive device is lost. In addition, by attaching height adjusting screws to 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 can be fixed to the inner drum frame with bolts and eye nuts to assemble the take-up drum in a detachable manner, and if the ground at the work site is not horizontal, the height adjustment screw makes the frame horizontal. Adjust and install. Also, by adjusting the tightening degree of the preload adjusting nut, the inner drum frame moves axially along the drive shaft or the driven shaft and is fixed to the outer surface of the sprocket wheel fixed to the drive shaft and the driven shaft. The friction force between the driven side ring and the driven side ring provided on the side surface of the preload adjustment flange provided on the inner drum frame fitted to the drive shaft and the driven shaft so as to be movable and rotatable 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 and rotates integrally with the drive shaft and the driven shaft according to the thickness of the wire, normally all It is possible to wind a plurality of electric wires (for example, four electric wires) in a lump by rotating the take-up drum synchronously. If any wire is overloaded, the preload adjusting mechanism causes a slip between the inner drum frame of the winding drum that winds the wire and the shaft, and the winding drum rotates. Rolling can be stopped, and accidents such as disconnection can be prevented. If the auger drill disengages from the main shaft during winding work and reverse rotation occurs due to the tension of the wire on the winding drum, the electromagnetic brake of the emergency stop device is actuated to operate the driven shaft. The rotation can be braked, the reverse rotation of the winding drum can be prevented, and the rewinding of the electric wire can be prevented.

[0007]

【Example】

 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 so that four electric wires can be collectively wound, and the usage state thereof is shown in FIG. In the figure, reference numeral 1 is a column car, which has an auger drill 2 for digging holes. Reference numeral 3 denotes an electric wire batch winding device according to the present embodiment. The main shaft is connected to the tip of the auger drill to rotate the winding drum, and the electric wire or rope suspended on the electric pole 4 is wound. There is. In addition, 5 is a wire-rolling roller provided on the electric pole 4, and 6 is connected to the construction pole car in order to hold the electric wire batch winding device so as not to move due to the tension of the overhead wire during the winding operation. It is a wire to stop the movement.

Next, a specific structure of the electric wire batch winding device will be described in detail with reference to FIGS. 2 to 6. In the figure, 10 is a main shaft, and as shown in FIG. 5, bearings 16, 17 and 18 are vertically supported by bearing stands 13 and 14 provided on a pedestal 12, and an upper end thereof projects from an upper bearing stand 15 1. The quadrangular shaft coupling portion 11 is fitted in the auger bit locking hole at the lower end of the auger drill to transmit the rotational force. Reference numeral 19 is a sprocket wheel fixed to the main shaft 10, and a transmission chain 22 is provided between the sprocket wheel and a small-diameter sprocket wheel 21 provided on a transmission shaft 20 vertically supported by the upper bearing stand 15. It is stretched around and accelerates the rotation of the main shaft to transmit it to the transmission shaft 20. The lower end of the transmission shaft 20 is transmitted via a differential gear unit 23 to the left and right drive shafts 25, which are horizontally supported by the gantry.

As shown in FIG. 6, sprocket wheels 26, 26 for transmitting the rotation to the driven shafts are fixed to the drive shafts 25, 25, respectively. Frames 27, 27 are attached. In the inner frame 27 of the drum, the inner diameter of the hub portion 28 is formed larger than the outer diameter of the drive shaft 25, and a preload flange 29 is formed at the outer end thereof. A rubber ring 30 made of nitrile butadiene rubber is provided in 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. It is fixed. Reference numeral 32 denotes a bearing fixed to the drive shaft, and the inner drum frame is axially slidably supported by the bearing. Reference numeral 33 is 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. Reference numeral 34 denotes a spring provided between the bearings 32 and 33, which constantly biases the inner drum frame 27 so as to separate it from the sprocket wheel 26. Reference numeral 35 is an inner drum frame flange, and a metal ring 36 similar to the metal ring 31 is fixed to the inner surface of the flange with 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. The preload adjusting flange 41 has a rubber ring 30 on the outer peripheral surface thereof so as to face the metal ring 36. A similar rubber ring 42 is attached and fixed. The preload adjusting ring also has an inner diameter of the hub portion larger than that of the drive shaft 25, and is supported by a bearing 43 which is fixed to the drive shaft by an O-ring to prevent movement in the axial direction. The other end is fixed to the preload adjusting ring 40 and is rotatably supported with respect to the drive shaft 25 by a bearing 44 provided so as to be movable in the axial direction. Then, a spring 45 is fitted between the bearings 43 and 44, and urges the preload adjusting ring to be separated from the inner drum frame flange side. Reference numeral 46 denotes a preload adjusting nut that is 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 that is rotatably supported by the gantry 12 in parallel with the drive shaft. The driven sprocket wheels 51, 51 are fixed to both ends of the driven shaft, and the inner drum frame is provided outside thereof. 27 is attached. The structures of the driven sprocket wheel and the inner drum frame are similar to those of the sprocket wheel and the inner drum frame attached to the drive shaft, and have the same preload adjusting mechanism as shown in FIG. The driven shaft is rotationally driven by the rotational force transmitted from the drive shaft via the chains 53 provided on both sides of the driven shaft. Reference numeral 55 is an electromagnetic brake provided as a safety emergency stop device provided on the frame, and can press the brake disk 56 fixed to the driven shaft to stop the rotation of the driven shaft. The power source of the electromagnetic brake uses the battery of the overhead car. In addition, an emergency stop switch for activating the electromagnetic brake should be installed at a location where the driver can operate the vehicle so that it can be operated immediately when an accident occurs. Reference numeral 57 denotes an outer drum frame, which can be detachably fixed to the inner drum frame by bolts 58 protruding from the winding drum side wall 58 of the inner drum frame. And constitute the winding drum 52. As shown in FIG. 4, the pedestal 12 is provided with height adjusting screws 60 on its lower four sides. When the pedestal 12 is installed on uneven ground, the pedestal 12 is made horizontal by the screws. Adjust. Further, the mount is provided with a ground 61 for safety.

The wire bundle winding device of the present embodiment is configured as described above, and the winding drum 52 is assembled by previously fixing the outer drum frame 57 to the inner drum frame 27 with the bolts 58 and the eye nuts. There is. Further, the metal ring 31 fixed to the sprocket wheel 26 is in pressure contact with the rubber ring 30 of the inner drum frame 27, and the metal ring 36 provided in the inner drum frame flange is in pressure contact with the rubber ring 42 of the preload adjusting ring. The tightening pressure of the preload adjusting nut 46 is adjusted in advance so that the winding drum transmits a constant torque and rotates integrally with the drive shaft 25 according to the thickness of the drive shaft 25. If the ground at the work site is not horizontal, adjust the height so that the pedestal will be horizontal with the height adjustment screw 60, and remove the auger bit at the tip of the auger drill 2 as shown in Fig. 1. By setting the main shaft 10 of the electric wire batch winding device to fit into the auger bit locking hole, and by locking the ends of the four electric wires mounted on the electric pole 4 to the four winding drums, respectively. It is possible to wind all four wires together. Also, by connecting the other end of the wire to be replaced to the end of the electric wire to be newly installed, the old wire can be wound and the new wire can be installed at the same time.

When the auger drill 2 is rotationally driven in this state, the rotational force is transmitted to the main shaft 10 of the electric wire batch winding device, and the rotation of the main shaft is increased via the sprocket wheel 19, the chain 22, and the sprocket wheel 21. The transmission shaft 20 is rotated at a high speed, the left and right drive shafts 25 are rotated by the differential gear mechanism, and the driven shaft 50 is also rotated by the rotation of the drive shaft through the sprocket wheel 26, the chain 53, and the driven sprocket wheel 51. Start rotating at the same speed. At that time, the rotations of the drive shaft 25 and the driven shaft 50 are transmitted to the inner drum frame 27 via the sprocket wheel 26, the metal ring 31, the rubber ring 30, and the preload flange 29, and the four take-up drums receive the preload adjustment nuts. The four wires can be wound simultaneously by rotating all at once with a constant torque adjusted by the tightening pressure of 46. Therefore, by adjusting the tightening force of the preload adjusting nut 46, the rotating torque can be adjusted as desired, and when the wire is stretched, the connection part may bite into the gold wheel and a load exceeding the set torque may be applied. In this case, slippage may occur between the metal ring and the rubber ring to stop the rotation of the take-up drum and prevent accidents such as wire breakage and twisting of the distribution line arm and utility pole. Further, in this device, since the preload adjusting device is provided for each of the four winding drums, the rotating torque can be adjusted for each individual drum. If 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 should be activated. Thus, the rotation of the driven shaft can be braked, the reverse rotation of the winding drum can be prevented, and the rewinding of the electric wire can be prevented. When the winding of the electric wires is completed, the outer drum frame 57 is removed from the inner drum frame 27, so that the wound electric wires can be removed from the winding drum and tied with a string so that they can be individually arranged.

The above is the case of winding the electric wire with this device, but conversely, in the work of overhanging the electric wire, a new electric wire coil can be set in the device and used as a rewinding device. In that case, by loosening the preload adjusting nut and disconnecting the contact between the metal ring 31 and the rubber ring 30 and between the metal ring 36 and the rubber ring 42 by the restoring force of the springs 34 and 45, the respective take-up drums are connected to each other. The transmission with the driven shaft is released, and each is in the state of free rotation. An embodiment of the wire bundle winding device of the present invention has been described above in detail, but the present invention is not limited to the above embodiment, and various design changes are possible. For example, in the above embodiment, one driven shaft is transmitted to the drive shaft so that four electric wires can be wound at the same time. However, for example, the driven shaft is increased to two and six electric wires are simultaneously wound. It is also possible to wind it up. Further, the transmission mechanism of the main shaft and the drive shaft does not necessarily have to be a differential gear mechanism, but may be a simple bevel gear mechanism or the like as long as it can transmit the rotational force to the cross shaft. Further, the power unit is preferably one that utilizes the power of the column tower, but in some cases it is also possible to adopt a separately provided motor or engine. It goes without saying that the wire bundle winding device of the present invention can be applied not only to the distribution line wired to the utility pole but also to the cable winding / unwinding of the underground cable work. Therefore, the term "electric wire" described in the scope of claims for utility model is used not only for distribution lines but also for cables, ropes, and the like.

[0015]

[Effects of the Invention] The present invention is configured as described above and has the following special effects. Since multiple wires can be wound together at the same time, it is possible to reduce the number of times of raising and lowering to the utility pole as compared with the conventional method, and it is possible to reduce the winding work and labor cost. In addition, it can be transported to a building column car etc. and installed at any work place without the need of a special work vehicle. You can work in Anabori, construction pillar, and wire winding. Furthermore, since the rotating torque of each winding drum can be adjusted individually to prevent overload from acting, accidents such as wire breakage and twisting of the distribution line arm and utility pole can be prevented, and safety and work can be prevented. It has excellent properties. Further, according to the configuration of claim 4, when the auger drill and the main shaft are disengaged from each other during the winding operation and the winding drum is reversely rotated by the tension of the electric wire, the reverse rotation of the winding drum is immediately performed. It is possible to prevent the electric wire from being rewound and prevent an accident. Furthermore, according to the structure of claim 5, it can be safely installed even on a sloping ground or uneven surface.

[Brief description of drawings]

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

FIG. 2 is a plan view of an electric wire batch winding device according to an 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 partially sectional front view of a drive shaft portion.

[Explanation of symbols]

1 Building pillar car 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 adjustment flange 30, 42 Rubber ring 1, 36 Metal ring 40 Preload adjusting ring 46 Preload adjusting nut 50 Driven shaft 55 Electromagnetic brake 57 Outer drum frame 60 Height adjusting screw

Claims (5)

[Scope of utility model registration request] 1. A gantry, a drive shaft which is provided on the gantry and is rotationally driven by being connected to a power unit, a driven shaft which is rotatably driven by being transmitted with the drive shaft, and is attached to both ends of the drive shaft and the driven shaft. An inner drum frame of the winding drum, and an 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 at the same time. An electric wire batch winding device. 2. The drive shaft is rotatably driven by being connected to a main shaft that is rotatably driven by an auger drill of a building car, which is a power unit, and the drive shaft, the driven shaft, and the inner drum frame are pressurized adjusting mechanisms. The electric wire batch winding device according to claim 1, wherein the winding torque is adjusted by adjusting the rotational torque of each winding drum. 3. The pressurization adjusting 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, and to the drive shaft and the driven shaft so as to be movable and rotatable in the axial direction. The driven side ring, which is provided on the side surface of the preload adjusting flange provided on the inner drum frame so as to face the drive side ring, is tightened by the preload adjusting nut via the preload adjusting ring, and the driven side ring and the driven side ring are driven. The electric wire batch winding device according to claim 2, wherein the device is configured so that a frictional force with the side ring can be adjusted. 4. The electric wire batch winding device according to claim 1, wherein an electromagnetic brake is provided as an emergency stop device on either the drive shaft or the driven shaft. 5. The height adjustment screws are attached to the lower four sides of the gantry, as claimed in claim 1,
3 or 4 electric wire batch winding device.