JP2505565Y2 - Umbilical line support release mechanism - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a ground facility applied to rocket launching work, and relates to a support and release mechanism of an umbilical line.

[Prior Art] A swing arm method for forcibly pulling out the umbilical connector immediately before the rocket liftoff has been put to practical use overseas. In the case of this swing arm, the purpose is not to support the umbilical line, and a strong driving force for horizontal turning is required when pulling out.

[Problems to be solved by the invention] 1) The conventional umbilical cable is a fuselage (rocket)
Adopts a two-point support method with a side connector coupling part and a shock absorber (shock absorber) fixed to the umbilical mast, and because it draws a caterina curve, the cable length becomes extremely long, so that the power supply voltage of the aircraft etc. Electrical problems such as drops and increased line capacitance occur.

2) For the same reason as described in 1) above, a long cable inevitably increases the weight, which causes a trouble in handling. That is, many workers spend a lot of time on maintenance, installation, and replacement work. Moreover, 1) above
In order to solve the above-mentioned problem, it is necessary to increase the size of the electric wire, double the power supply line, and use a large number of shielded wires, resulting in a further increase in cable weight.

3) In addition to the problem in terms of handling in the above item 2), the increase in the weight of the cable imposes a great restriction on the design of the fuselage side connector coupling portion. In other words, in order to have load bearing capacity, a special device (abbilical carrier) is used, and the connector part material, shape, mechanism, etc. become special, which causes problems such as increase in machine weight and cost. linked.

4) It is necessary to separate the umbilical cable from the machine body at the time of lift-off (connector withdrawal), but after detaching the connector, it will be a single point support and the connector end will drop in a form that it will be pulled toward the umbilical mast side, so there is a measure to prevent connector impact. It is necessary and uses a large shock absorber called a catching net.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has been proposed as a conventional method.
Instead of using the point support method, I thought of supporting most of the line with an arm. In addition, with respect to the drop impact at the time of disconnecting the connector, the arm is dropped and the wire interlocked with the arm is pulled up.

In this invention, the arm and its drive unit are large, but there are few development factors and there are no obstacles to the introduction, so that the conversion from the conventional system is facilitated.

[Operation] In the configuration of the present invention, the arm supports the load of the umbilical line just before lift-off, and the wire interlocked with the drop motion immediately after lift-off pulls up the umbilical connector after detachment. In addition, during the maintenance of the aircraft, the arm is horizontally swiveled to pull it into the inspection tower and facilitate line replacement and maintenance.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

The support / release mechanism according to the embodiment of the present invention includes an umbilical line (cable) 7 for connecting a circuit between the body 10 and the inspection tower 20 via a connector 5, and a line support arm for supporting the umbilical line 7. 1
A horizontal rotation shaft 3 for freely supporting the horizontal rotation of the line support arm 1 and a vertical rotation shaft 11 for freely supporting the vertical rotation of the line support arm 1; A support rod 6 which is connected to the other end and is movable in the vertical direction at the other end, and a lock mechanism which locks the vertical movement of the other end of the support rod 6 and holds the line support arm 1 horizontally through the support rod 6. 4, a damper mechanism 9 for buffering the vertical movement of the other end of the support rod 6, and a pulley 8 provided in the inspection tower 20, one end of which is connected to the connector 5 and the other end of which is the support rod 6. The lanyard 2 is connected to the other end.

In the above structure, the line support arm 1 is extended horizontally from the inspection tower 20 in the direction of the airframe 10, the umbilical line (cable) 7 is placed on the line support arm 1, and the connector (including the connecting portion) 5 is large. Do not apply a load.

At the time of launching, the lock mechanism 4 provided at the end of the support rod 6 supporting the line support arm 1 is unlocked, so that the lanyard (wire) 2 connected to the end of the support rod 6 moves the pulley 8. The connector 5 connected to one end of the lanyard 2 is drawn toward the pulley 8 of the inspection tower 20 by being drawn into the inspection tower 20 via the connector 5 as shown in FIG.

When the end of the support rod 6 is unlocked, the line support arm 1 performs an arcuate drop motion with the vertical rotation shaft 11 as a rotation fulcrum as shown by the broken line in FIG. At this time, immediately before the line support arm 1 is in the vertical direction, the end portion of the support rod 6 receives the damper action of the damper mechanism 9, and the damper mechanism 9
Due to the damper action, the collision of the line support arm 1 and the connector 5 with the inspection tower 20 is avoided.

During a normal maintenance period, the line support arm 1 is rotated horizontally by the horizontal rotation shaft 3 and drawn into the inspection tower 20 side. This allows the cable (umbilical line)
Can be easily maintained and replaced.

[Effects of the Invention] The following effects are produced by using the umbilical line support / release mechanism according to the present invention described above.

(1) By putting the umbilical line (cable) on the arm, the cable length can be reduced to less than half of the conventional length, and problems such as voltage drop are reduced.

(2) Since there is almost no restriction on the load on the connector and the connecting portion, the design becomes easy and the weight of the machine body is reduced.

(3) Since the cable length can be shortened, the weight is also light.
The workability and work environment are greatly improved by pulling it into the arm inspection tower.

(4) It is not necessary to use a large-scale shock absorbing device such as a catching net that has been conventionally used for preventing the connector from impact.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a schematic configuration and function in one embodiment of the present invention, and FIG. 2 is a perspective view showing FIG. 1 from a different viewpoint. 1 ... Line support arm, 2 ... Lanyard, 3 ...
... Horizontal rotation axis, 4 ... Lock mechanism, 5 ... Connector, 6
…… Support rod, 7 …… Umbilical line (cable),
8 ... Pulley, 9 ... Damper mechanism, 11 ... Vertical rotation axis.

Claims (1)

(57) [Scope of utility model registration request] 1. A line support arm (1) for supporting an umbilical line (7), a horizontal rotation shaft (3) for freely supporting horizontal rotation of the line support arm (1), and the line. A vertical rotation shaft (11) for freely supporting the vertical rotation of the support arm (1), and a support in which one end is connected to an intermediate portion of the line support arm (1) and the other end is vertically movable. A rod (6) and a lock mechanism (4) for locking the vertical movement of the other end of the support rod (6) and horizontally holding the line support arm (1) through the support rod (6); A damper mechanism (9) for buffering the vertical movement of the other end of the supporting rod (6) and one end of the supporting rod (6) connected to the connector (5) via the pulley (8). An umbilical comprising a lanyard (2) connected to the other end, and Rurain of support release mechanism.