RU2296405C2 - Cable haulage device - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: proposed cable haulage device has coil in the form of cylinder with two end disks and cable terminating in plug connectors and wound on cylinder. Frame-mounted coil is provided with lock and with plug-connector fastening members; frame is made of bars constituting closed loop enclosing coil with cable and plug connectors. Locking member of grip in one of connectors is made in the form of longitudinal depression on cylinder surface aligned with notch of end disk; locking member of other connector is disposed on inner side of frame member in parallel with coil revolution shaft. The latter is installed on frame with negative allowance.

EFFECT: improved power characteristics, reduced size, and ability of checking conductors for condition.

2 cl, 3 dwg

Description

The invention relates to electrical engineering.

A device for transporting an extension cable containing a hollow drum with disks and a cable wound on a drum [1] is known.

However, this device for transporting an extension cable cannot be used by the operator in a spacesuit when working in outer space, as the cable does not have connectors, and the device itself does not have the ergonomic and technical indicators necessary to ensure convenient and safe operation.

It is also known taken as a prototype device for transporting an extension cable containing a coil in the form of a cylinder with two end disks, with a cable wound on the cylinder, ending with connectors, equipped with a latch and mounted on the frame, as well as elements for fixing the connectors [2].

However, the disadvantage of this device is the difficulty of operating it by the operator in a spacesuit, the difficulty of using existing means of fixation and orientation of the device with respect to the cable being pulled in zero gravity; the inability of the structure to provide minimum dimensions with relatively large permissible radii of cable bending; not the ability to check the integrity of the conductors included in the cable without it being completely unwound from the drum, the relatively low level of cable protection from possible damage.

The objective of the proposed device is to improve ergonomics, as well as ensuring minimum dimensions and weight and the ability to verify the integrity of the conductors.

The technical result is achieved in that in a device for transporting a cable containing a coil in the form of a cylinder with two end disks, with a cable wound around the cylinder, ending with connectors, equipped with a latch and mounted on the frame, as well as elements for fixing the connectors, in contrast to the known frame made of rods forming a closed loop and covering the coil with cable and connectors, the fixing element of the handle of one of the connectors is made in the form of a longitudinal recess on the surface of the cylinder, combined neck on an end disk, and the other connector fixing member disposed on an inner side of the cradle element parallel to the axis of rotation of the coil, the coil axis of rotation is mounted on the frame with an interference fit.

In this case, the frame is proposed to be made of rods placed in two planes parallel to each other, as well as the longitudinal axis of the coil, forming two closed loops and covering the coil with cable and connectors, closed loops are connected by two parallel rods covering the coil with cable and connectors and lying in a plane perpendicular to the above planes and passing through the axis of rotation of the coil.

To ensure minimum dimensions, the number of layers of cable winding should be even. Each turn of the cable is connected to the previous cotton thread.

Improving ergonomics is achieved by providing convenient operator work in a spacesuit; free fixation by existing means, the predicted location of the device in zero gravity conditions when winding the cable. At the same time, it is also possible to check the integrity of the conductors included in the cable without being rewound from the reel, the safety of the cable and end connectors during transport to low Earth orbit, without reducing the ability to control and adjust the cable winding process.

The essence of the invention is illustrated in figures 1-3, which show:

figure 1 is a top view of the device;

figure 2 is a main view;

figure 3 is a view of the device on the left.

The device for transporting the cable contains a coil made in the form of a cylinder 1 with two end disks 2 and 3, with a cable 4 wound on the cylinder, ending with connectors 5 and 6, equipped with a latch 7 and mounted on the frame 8, as well as fixing elements of the connectors 9 and 10 .

The frame is made of rods forming a closed loop and covering the coil with cable and connectors, the locking element of the handle of one of the connectors is made in the form of a longitudinal recess 9 on the surface of the cylinder 1, combined with a cutout on the end disk 2, and the fixing element 10 of the other connector is placed on the inner side of the frame element parallel to the axis of rotation of the coil 11, the axis of rotation of the coil is mounted on the frame 8 with interference.

Part of the rods included in the frame is placed in two planes parallel to each other, as well as the longitudinal axis of rotation of the coil 11, forming two closed circuits and covering the coil with cable and connectors, closed circuits are connected by two parallel rods 12 and 13, covering the coil with cable and connectors and lying in a plane perpendicular to the above planes and passing through the axis of rotation of the coil 11.

The device operates as follows. Before unwinding the cable, the connector 5 is released (the protective cover is removed), located on the inner surface of the frame 8, and passed into one of the closed loops, which, in this case, play the role of a die and allow to limit the cable exit zone and make the device position relative to the cable predictable. Next, the connector 5 is connected to the source (consumer), the drum with the cable is released by moving the latch 7 to the "Open" position, and, rotating the drum, unwind the cable. The unwinding is carried out with some effort necessary to overcome the frictional force between the axis 11 and the rods 12 and 13, as well as to break the cotton threads that are connected to the cable windings to prevent involuntary opening of the cable bay. After the cable is completely unwound, the connector 6 is removed from the longitudinal recess 9 (the protective cover is removed) and connected to the consumer (source).

The arrangement of the device makes it possible for the operator to access the outer layer of the cable winding in a spacesuit from almost any direction lying in the plane of rotation of the coil. The geometry of the cross section of the rods included in the frame allows you to fix the device for transporting the cable by any standard means of fixation, and the frame 8 itself acts as a fence, ensuring the safety of the cable. If necessary, at any stage of transportation, the integrity of the conductors included in the cable can be checked, for which it is necessary to release the connector 5 located on the inner surface of the frame 8, remove the protective covers from the connectors 5, 6 and connect the equipment for verification to them.

Literature

1. USSR Copyright Certificate No. 1246220, IPC6: H 02 G 11/02, 1986.

2. Patent RU No. 2077101, IPC6: H 02 G 11/02, 04/10/97. - The prototype.

Claims (2)

1. A device for transporting a cable containing a coil in the form of a cylinder with two end disks, with a cable wound around the cylinder, ending with connectors, provided with a latch and mounted on the frame, as well as elements for fixing the connectors, characterized in that the frame is made of rods forming a closed the contour and covering the coil with cable and connectors, the locking element of the handle of one of the connectors is made in the form of a longitudinal recess on the surface of the cylinder, combined with a cutout on the end disk, and the fixing element another connector is placed on the inner side of the frame element parallel to the axis of rotation of the coil, the axis of rotation of the coil is mounted on the frame with an interference fit. 2. The device for transporting the cable according to claim 1, characterized in that the frame is made of rods placed in two planes parallel to each other, as well as the longitudinal axis of the coil, forming two closed loops and covering the projection of the coil with cable and connectors, closed loops are connected by two parallel rods covering the coil with cable and connectors and lying in a plane perpendicular to the above planes and passing through the axis of rotation of the coil.

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