JPS6155324B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding device, and the present invention relates to a winding device, for example, when a pipe traveling machine is pulled out from a pipe by a load wire and recovered, the winding device is pulled while pulling the power supply air hose of the pipe traveling machine together with the wire. Regarding suitable equipment for taking.

For example, when installing a power cable in a long and narrow conduit reaching several hundred meters long, the messenger wire of the power cable is first inserted into the conduit, and then the messenger wire is pulled out with a winch or the like and installed inside the conduit. The power cables are passed through. A conduit running machine is used to pass this messenger wire. Examples of pipe traveling machines include those that move a piston back and forth using compressed air sent through an air hose, and move forward in a pipe while expanding and contracting due to the reciprocating motion. FIG. 1 schematically shows an example of a pipe traveling machine in a pipe. In the figure, 1 is a pipe, 2
3 is an air hose, and 4 is a messenger wire. Although a detailed explanation of the structure will be omitted, there are locking tools 2a and 2b in contact with the pipe wall at the front and rear of the pipe traveling machine 2.
When the trunk extends, only the rear locking tool 2b engages with the tube wall by friction, and only the front section 2c of the trunk moves forward. When the trunk shortens, only the front locking tool 2a locks the tube wall. Only the rear part 2d of the torso moves forward by frictionally engaging the wall.
By repeating this, the whole body moves forward in the pipe 1 like an inchworm. The locking device may include a roller that can only move forward, or a friction bag that is alternately inflated with air.

When using a conduit traveling machine, there may be cases where the conduit traveling machine becomes unable to move due to defects or damage to the conduit. In this case, from inside the pipe 1 to the pipe traveling machine 2
It is necessary to pull back the air hose 3.
If an attempt is made to pull out the conduit traveling machine 2 by winding it up, a large load will be applied to the air hose 3, so there is a possibility that the hose will be cut, making it impossible to pull it out.

Therefore, in order to pull out the pipe traveling machine 2, a load wire rope such as a messenger wire 4 is attached in parallel with the air hose 3, and the wire rope is wound up. In this case, it is necessary to wind up the air hose 2 at the same time as the wire rope, but it is not preferable to wind both on the same drum because the air hose will be crushed by the wire rope and damaged or deformed. Therefore, the air hose and wire rope are wound on separate drums.

However, since the air hose and wire rope have different thicknesses, the speed at which they are wound onto each drum is not the same. That is, the increase rate of the outer diameter during winding is greater for a thicker air hose than for a wire rope. Therefore, as the winding progresses, the winding speed of the air hose increases, the wire rope is left behind and gradually becomes slack, and tension is applied only to the air hose. In this case, there is no point in attaching a wire rope and pulling it.

Therefore, in order to pull out and recover the pipe traveling machine from inside the pipe, a winding device is required that can wind the wire rope and the air hose on separate drums without causing the wire rope to slack. In addition to drawing out pipe running machines, similar winding methods are also used when pulling air hoses and other devices connected to transmission wires such as power supply lines and signal lines using wire ropes. A device is requested.

An object of the present invention is to provide a winding device that meets the above-mentioned demands. A winding device of the present invention that achieves the above object includes a first drum for winding a transmission wire such as an air hose, a power supply line, a signal line, etc. connected to a device; In the apparatus for simultaneously winding both the transmission wire and the load wire, the first drum and a second drum for winding a load wire such as a wire or rope are rotated by one motor. A differential gear is interposed between a first gear that drives the drum and a second gear that drives the second drum, and a case that rotatably supports the differential gear on its inner surface is rotated by the motor. It is characterized by having a configuration in which it is driven.

The present invention will be explained below based on FIGS. 2 to 4. Each figure shows an embodiment in which the present invention is applied to a winding device for a pipeline running machine, and FIG. 2 is a schematic diagram, and FIG. -A
The perspective view and FIG. 4 are perspective views of main parts.

In Figs. 2 to 4, 5 is a first drum or hose drum for winding the air hose 3, and 6 is a second drum or wire drum for winding a messenger wire or a separately provided load wire rope 7. . The hose drum 5 and the wire drum 6 are connected to the chain wheel 1 by chains 8 and 9, respectively.
It is connected to 0,11. Reference numeral 12 denotes a differential gear, and its first bevel gear 13 and second bevel gear 14 are integrated with chain wheels 10 and 11, respectively, and both are passed through a shaft 15. 16 and 1
Reference numeral 7 designates differential gears forming the differential device 12, which are interposed between the first and second bevel gears 13 and 14 in a state where they are both pivotally supported on the inner surface of the bowl-shaped case 18. Teeth 18a are carved on the outer periphery of the case 18, and are configured to mesh with a pinion 20 attached to the shaft of the motor 19. 21 and 22 are axis 15
The bearing is fixed to a fixing member (not shown). Note that illustrations of a shaft support device for each drum, a fixing device for the motor, an axial positioning device for the first and second bevel gears, etc. are omitted.

Next, the operation of the winding device having the above configuration will be explained.
The motor 19 rotates and the pinion 20 and case 18
The case 18 engages with the teeth 18a of the shaft 15.
When driven to rotate around the shaft 15, the differential gears 16, 17 also move around the shaft 15 together with the case 18. Now, if the loads on the first bevel gear 13 and the second bevel gear 14 are the same, the differential gears 16 and 17 cannot rotate. Therefore, both the bevel gears 13 and 14 rotate together in the same direction while their meshing with the differential gears 16 and 17 is locked. On the other hand, for example, when the load on the second bevel gear 14 becomes lighter than that on the first bevel gear 13, the differential gears 16 and 17 rotate while rotating on the shaft 15.
can be moved around the second bevel gear 1.
4 rotates relatively faster than the first bevel gear 13. However, the direction of rotation is the same.

Now, at the beginning of winding, the air hose 3 and the wire rope 7 are wound at the same speed, but since the air hose 3 is thicker than the wire rope 7, the winding speed of the hose drum 5 gradually becomes faster and the wire rope 7 It will become sagging. However, since the load on the second bevel gear 14 that drives the wire drum 6 is reduced by the amount of slack, the differential gears 16 and 17 rotate and the second bevel gear 14 rapidly rotates, causing the wire drum 6 to rotate rapidly. The drum 6 rapidly winds up the wire rope 7. When the wire rope 7 no longer has any slack, the differential gears 16 and 17 stop rotating, and the first and second bevel gears 13 and 14 and the differential gears 16 and 17 are locked, and their integral rotation causes The air hose 3 and wire rope 7 are evenly wound. Thereafter, by repeating this process, the rotation of the hose drum 5 and wire drum 6 is constantly controlled, and each drum can be wound with the same rotational torque, allowing the pipe running machine to run smoothly without applying excessive force to the air hose 3. It can be pulled out from inside the pipe.

It goes without saying that the winding device of the present invention can be used not only for pulling out pipe running machines, but also for pulling out various types of equipment.

[Brief explanation of the drawing]

Figure 1 is a diagram schematically showing the pipeline traveling machine, Figure 2-
FIG. 4 shows a winding device according to an embodiment of the present invention.
The figure is a schematic configuration diagram, and Fig. 3 shows the second part partially cut away.
The AA view in the figure and FIG. 4 are perspective views of important parts. In the drawing, 1 is a pipe, 2 is a pipe traveling machine, 3 is an air hose, 4 is a messenger wire, 5 is a hose drum (first drum), and 6 is a wire drum (second drum).
drum), 7 is a wire rope, 8 and 9 are chains, 10 and 11 are chain wheels, 12 is a differential gear, 13 is its first gear, 14 is its second gear, 15 is a shaft, 16 and 17 is a differential gear, 18 is a case, 18a is its teeth, 19 is a motor, and 20 is a pinion.

Claims (1)

[Claims] 1 A first drum that winds transmission wires such as air hoses, power supply lines, and signal lines connected to equipment, and a first drum that winds load wires such as wires and ropes connected to the equipment. In the apparatus for simultaneously winding both the transmission and load wire bodies by rotating the second drum with a single motor, the first gear for driving the first drum and the second drum are rotated by a single motor. A winding device characterized in that a differential gear is interposed between a second gear to be driven and a case rotatably supporting the differential gear on its inner surface is rotationally driven by the motor.