RU184130U1 - Grip of the beam holder with a new design of stops - Google Patents

Abstract

The utility model relates to the field of aircraft construction, namely to the construction of the grip of the beam holder. The grip of the girder holder includes the grip directly, stops with fungi sealed on them, adjusting screws and locknuts.

The utility model allows to increase the reliability of a multi-locking beam holder when used on helicopters.

Description

The utility model relates to the field of aircraft construction, in particular, to the construction of the grip of the beam holder used as an element that secures the release of loads suspended on aircraft from lateral flight movements. The grip design of the beam holder includes: the grip itself, stops with fungi rolled on them, adjusting screws and locknuts.

The utility model relates to the design of the grip of the beam holder and can be used in aircraft for suspension, transportation and discharge of various cargoes as an element ensuring the release of the loads suspended on aircraft from lateral flight movements in places where classical adjustment of the stops is impossible due to limited space.

From the prior art (Sazonov D.V., Lukin A.S. Installations of missile-bomber weapons. Part 1: Beam holders: Tutorial / Samar. State. Aerocos. University of Samara, 2003.) known capture of the beam holder BD3 - UMK, selected as an analogue. The grip consists of a bracket, on each console of which there are three threaded holes, stops with fungi rolled on them and locknuts.

Known grip beam holders BD3-57KR-VM and DB3-UV, selected as prototypes. The design description and the work on adjusting the stops of these holders are given in the technical manuals BD3-57KR-VM.RE and DB3-UV.84.00.00.000 RE, respectively.

The disadvantage of all the grips of the beam holders mentioned above is that they cannot be used to solve the problem below.

Known aircraft multi-locking beam holder MBD2-67U, the principle of which is described in the technical description and operating instructions MBD2-67U.TO. When trying to use this holder on Mi-8 helicopters, the following problem arose - some structural elements of the beam holders BD3-57KR-VM (which is the standard holder of the mentioned object and acts as a transition beam holder in this suspension) and MBD2-67U were destroyed after several dozen flight hours due to the occurrence of resonance. The consequence of this was a decrease in the reliability indicators of the multi-lock beam holder MBD2-67U when used on Mi-8 helicopters up to fifty flight hours. Due to the design features of the MBD2-67U multi-locking beam holder, the standard grips of the BD3-57KR-VM beam holder cannot be used. In addition, due to the arrangement of blocks with pulse feed mechanisms and explosion-non-explosion mechanisms (hereinafter referred to as MPI and MVN blocks) of the multi-locking beam holder MBD2-67U in the area of the rear grip of the beam holder BD3-57KR-VM, the regular adjustment of the stops cannot be used either .

The technical problem, the solution of which is proposed by the proposed utility model, is to create a grip design for the beam holder, which allows to obtain a technical result, which is manifested in the possibility to significantly increase the reliability indicators of the multi-castle beam holder when used on helicopters.

Obtaining the specified technical result is ensured by the fact that the front and rear special grips are introduced into the set of removable parts of the transitional beam holder and are equidistant relative to the power case of the multi-locking beam holder of the form and intended for its release.

The essence of the proposed utility model is illustrated by images.

FIG. 1 - layout of the rear special grip (grip beam holder with a new design of the stops).

FIG. 2 - nominal position of the stop.

FIG. 3 - extreme position of an emphasis.

The layout diagram of the rear special grip (Fig. 1) shows a transitional beam holder 1 with a special rear grip 2 fixed inside it, which unfastens the case of the multi-locking beam holder 5 from perpendicular to the flight movements. In the rear special grip 2, holes 3 are provided for fastening to the transitional beam holder 1 with the help of pins 12 and hole 11 for the possibility of using an electric harness. Since the rear special grip 2 in one plane is sandwiched between the mounting brackets of the MPI and MVN 10 blocks and the articulated rear arms of the rear arms 4, and in the other plane between the MPI and MVN 13 blocks, the stops 8 have the construction described below.

At a stop 8, a fungus 9 is rolled on a spherical surface, abutting against the body of a multi-locking beam holder 5. The outer surface of the stop 8 is made smooth, as is the opening of the catch 2, in which it moves. A cylindrical hole is made perpendicular to the spherical recess for rolling the fungus 9, turning into a conical one. To adjust the rear special grip 2, perpendicular to the stop hole, a threaded hole was made for the adjusting screw 6, the outer end of which is made in the form of a hexagon for working with a wrench, and the inner end is in the form of a cone for pairing with the corresponding conical hole of the stop 8. The final stop is tightened with by means of a lock nut 7 screwed onto the adjustment screw 6. The nominal and end positions are shown in FIG. 2 and FIG. 3 respectively. Tightening work can be carried out, for example, using a cardan key.

Claims (1)

A grip of the beam holder, which ensures the unloading of the load suspended on the aircraft from lateral movements of the flight, which also contains stops with fungi rolled on them, adjusting screws and locknuts, characterized in that each stop is made with the possibility of adjustment using a conical pair of screw adjusting - stop.

Images