JPH087786Y2 - Cable winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cable winding device that winds a cable used for temporary installation of a bypass electric circuit that bypasses an electrical work site.

(Prior Art) This type of cable winding device is generally used by being mounted on a vehicle so as to be conveniently moved. Then, as shown in FIG. 2, the structure is such that the vicinity of the cable drums 2a, 2b, 2c driven by the hydraulic motor 1,
Cable guides 3a, 3 that reciprocate along the width direction of the cable drums 2a, 2b, 2c in conjunction with the rotation of the cable drums 2a, 2b, 2c.
b, 3c are provided, and the cables 4a, 4b, 4c wound around the cable drums 2a, 2b, 2c are connected to the cable guide portions 3a, 3b,
3c guides the cables 4a, 4b, 4c to the cable drum
I try to wind it on 2a, 2b and 2c in an orderly manner. And
In this type of cable winding device, the cable drum
2a to 2c are provided with interlocking ratio switching means for converting the interlocking ratio of the reciprocating motion of the cable guide portion to the rotary motion of the cable drum so that the cables of different diameters can be wound up in an orderly manner.

More specifically, the cable drums 2a to 2c
Are connected to the support shaft 5, and both ends of the support shaft 5 are rotatably supported by bearings 6 and 6, respectively. A gear 7 is provided at one end of the support shaft 5, and a drive gear 9 provided on the output shaft 8 of the hydraulic motor 1 meshes with the gear 7. The cable guide portions 3a, 3b, 3c are cable drums 2a, 2b, 2c.
A guide shaft 10 arranged parallel to the spindle 5 of these drums near the
Is engaged with a reciprocating spiral groove that is externally fitted to the guide shaft 10, and is rotated by the rotation of the guide shaft 10 by the width of the corresponding drum on the guide shaft 10. . The guide shaft 10 is interlocked with the drive gear 9 of the hydraulic motor 1 via interlocking ratio switching means 11, and as a result, the rotational movements of the cable drums 2a, 2b, 2c and the cable guide portions 3a, 3b, The interlocking ratio of the reciprocating motion of 3c can be changed by operating the interlocking ratio switching means 11.
12 is a lever for switching the interlocking ratio switching means 11,
When this lever 12 is operated to the I position shown in the drawing, the drums 2a to 2c
The interlocking ratio of the reciprocating motion of the cable guide parts 3a to 3c to the rotation of is large (the movement amount of the cable guide part is large even if there was one rotation of the drum), and the interlocking is suitable for winding large diameter cables 4a to 4c. When the lever 12 is operated to the position II shown in the figure, the cable guide portion 3a with respect to rotation of the drums 2a to 2c
The ratio of reciprocating motion of ~ 3c is small (The amount of movement of the cable guide part per one rotation of the drum is small, and the small diameter cable 4a ~
The interlocking ratio is suitable for winding 4c.

(Problems to be solved by the invention) Although the cable winding device configured as described above can handle cables of different diameters, it can handle both small diameter cables and large diameter cables. Since the take-up force is constant, it is not possible to take up the cable with the optimum take-up force that is determined for each diameter of the cable, and in some cases the small-diameter cable may be cut or damaged when the small-diameter cable is taken up. There was a problem.

An object of the present invention is to provide a cable winding device capable of winding cables having different diameters in an orderly manner and also winding with an optimum winding force corresponding to the diameter of a handled cable. is there.

(Means for achieving the object) A cable guide portion that reciprocates along the drum width direction in association with the rotation of the cable drum is provided near the cable drum driven by the hydraulic motor, and is wound around the cable drum. A cable winding device configured to guide a cable to be taken by the cable guide portion,
Particularly, in the one in which the interlocking ratio switching means for switching the interlocking ratio of the reciprocating motion of the cable guide portion to the rotary motion of the cable drum in accordance with the diameter of the cable wound around the cable drum is attached, When at least driving pressure switching means for changing the driving force in the cable winding direction of the hydraulic motor is attached to the driving hydraulic circuit and the interlocking ratio switching means is switched to a small ratio,
It is characterized in that the driving pressure switching means interlocks the switching of the interlocking ratio switching means and the switching of the driving pressure switching means so as to reduce the driving force in the winding direction of the cable of the hydraulic motor.

(Operation) In the cable winding device of the present invention configured as above, when the interlocking ratio converting means is switched according to the diameter of the handled cable, the driving pressure switching means is automatically switched, and the winding direction of the hydraulic motor is changed. The drive force of is automatically changed, and the optimum winding force corresponding to the diameter of the cable can be achieved.

(Embodiment) An embodiment of the cable winding device of the present invention will be described below with reference to FIG. In the following description, the reference numerals shown in FIG. 2 and described as the prior art and the description thereof are incorporated herein by reference.

In FIG. 1, 13 is a drive pressure switching means that is provided in the drive hydraulic circuit of the hydraulic motor 1 and that gradually changes at least the drive force of the hydraulic motor 1 in the cable winding direction. In the present embodiment, this drive pressure switching means 13 selects a relatively high pressure relief valve 14a, a relatively low pressure relief valve 14b, and these relief valves 14a, 14b for the winding motor oil supply passage 1a of the hydraulic motor 1. Solenoid switching valve 14 for single connection
It consists of c and. The solenoid switching valve 14c of the drive pressure switching means 13 is normally in a position to connect the winding supply oil passage 1a and the relief valve 14a, and when the solenoid is energized, the winding supply oil passage 1a and the relief valve 14b. Can be switched to the position to connect. Reference numeral 15 makes contact when the lever 12 is operated to the II position so that the interlocking ratio of the interlocking ratio switching means 11 becomes small, that is, the cable guide portions 3a to 3c reciprocate corresponding to the small diameter cable. This is a limit switch, and when the limit switch 15 is in contact, the solenoid switching valve of the drive pressure switching means 13
The solenoid of 14c is energized. Therefore, when the interlocking ratio switching means 11 is switched to a small ratio (switching so as to correspond to the winding of a small diameter cable), the driving pressure switching means 13 interlocks with this and outputs the driving force in the winding direction of the hydraulic motor 1. The switching of the interlocking ratio switching means 11 and the switching of the drive pressure switching means 13 are interlocked with each other so as to reduce the number.

Next, the operation will be described. When handling large diameter cables,
The lever 12 of the interlocking ratio switching means 11 is switched to the I position. In conjunction with this switching, the driving force switching means 13 causes the driving force in the winding direction of the hydraulic motor 1 to be the optimum winding force commensurate with the large diameter cable. Is set to. Further, when handling a small diameter cable, the lever 12 of the interlocking ratio switching means 11 is switched to the II position, and the driving force switching means 13 interlocks with this switching so that the driving force in the winding direction of the hydraulic motor 1 is increased. It is set to the optimum winding force suitable for small diameter cables.

Although the cable drums 2a to 2c are connected to the support shaft 5 in the above embodiment, the cable winding device of the present invention is one in which one cable drum is mounted on the support shaft 5. Of course, it can be applied.

Further, the cable winding device of the present invention is provided with two sets of drum one support shaft assemblies including the cable drums 2a to 2c and these drums, and the large diameter gear 7 at the end thereof. A large diameter cable is wound around the drum one support shaft assembly and a small diameter cable is wound around the other drum one support shaft assembly, and these drum one support shaft assemblies are attached to bearings 6 and 6 if necessary. Of course, it can be applied to the cable winding device used.

Further, the driving force switching means in the above embodiment is composed of two relief valves 14a and 14b and a solenoid switching valve 14c for selectively connecting the relief valves 14a and 14b to the winding oil passage 1a. However, relatively high pressure relief valve 14a
Needless to say, this may be replaced by the main relief valve 14a '. In this case, the solenoid switching valve
14c is a relatively low pressure relief valve 14b and hoisting oil passage 1a.
It may be configured by an on-off valve that connects and disconnects the connection state.

(Effect) With the cable winding device of the present invention configured and operated as described above, the interlocking ratio switching means is simply handled and the switching operation is performed according to the diameter of the cable. Since it is set to, unlike the conventional one, it is not cut or damaged when handling a small diameter cable.

[Brief description of drawings]

FIG. 1 is an explanatory view of a cable winding device of the present invention. FIG. 2 is an explanatory view of a conventional cable winding device. 1: hydraulic motor, 11: interlocking ratio switching means, 13: drive pressure switching means

Claims (1)

[Scope of utility model registration request] 1. A cable guide portion, which reciprocates along the drum width direction in association with the rotation of the cable drum, is provided in the vicinity of the cable drum driven by a hydraulic motor, and a cable wound around the cable drum is provided. A cable winding device configured to be guided by the cable guide portion, and in particular, the interlocking ratio of the rotational movement of the cable drum and the reciprocating movement of the cable guide portion, which corresponds to the diameter of the cable wound on the cable drum. In addition to the interlocking ratio switching means for switching, a driving pressure switching means for changing at least the driving force of the hydraulic motor in the cable winding direction is attached to the driving hydraulic circuit of the hydraulic motor, and the interlocking ratio switching means is also provided. Is switched to a small ratio, the drive pressure switching means drives the hydraulic motor in the cable winding direction. To reduce the cable winding device, characterized in that in conjunction with switching of the switching between the driving pressure switching means of the interlocking ratio switching means.