SU1259055A1 - Joint of components - Google Patents

Description

The invention relates to mechanical engineering and can be used in the aviation industry and in other industries of the national economy, in which threaded studs are used to connect the flanges of parts and a proper joint seal is required.

The purpose of the invention is to increase the reliability of locking a group of threaded rods and ensuring the sealing of the joint.

Figure 1 shows the connection details; Fig. 2 shows an embodiment of the connection of parts.

Threaded studs 1, made with a thread without tension, at both ends 2 and 3 have birdlike mode 4 between threaded cuts located closer to the threaded end 3, which is screwed into the threaded sockets 5 of housing 6.

In the locking plate 7, there are a number of shear holes 8 in number equal to the number of studs and concentric grooves 9 located: at a certain distance from each other in order to obtain bridges 10, defined 1x the required contact area of the mating surfaces.

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Compound assembly is performed as follows.

When the studs are screwed into the threaded, the housing of the housing, the retaining plate is mounted on the splined studs. At the same time, the alignment of the spline contours in the holes of the locking plate and on the studs is carried out by turning or unscrewing the latter by an angle equivalent to the width of the spline slot.

The combination of the spline contours is also possible due to the rigorous orientation of the studs when screwing and the spline holes in the lock plate during manufacture.

After installing the locking plate, the dockable part 11 is mounted and the nuts and bolts 12 are tightened and stopped as in a conventional joint.

The torque that occurs when tightening or unscrewing the nuts is perceived by the splines in the hole of the plate, which ensures that the studs are locked from rotating. Getting

on the mating surfaces, the specific pressure necessary to ensure tightness with the specified thread parameters is achieved by selecting the required width of the web 10,

determining the contact area at the junction. In the case of using a locking plate made of soft metals, such as aluminum, instead of splined holes it can be made

smooth cylindrical holes with a diameter smaller than the diameter of the spline crown stud.

When assembling the joint, the locking plate is pressed onto the slotted over the side of the fork with the help of technological mandrels. The retaining plate can be made of sections with the installation of each section on two or more studs, and the studs can be made stepped.

FIG. 2 shows a variant of locking the stud by means of an intermediate ring 13 having inner and outer splines matching with

stud spikes and locking plates during assembly.

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Claims (2)

1. CONNECTION OF PARTS, containing threaded rods located in the holes of the parts to be joined with slotted belts between the threaded threads and a locking element located on the slotted belt of the threaded rod, with reciprocal slotted holes, with the exception that in order to increase the reliability of locking the group of threaded rods and ensure sealing of the connection, the locking element is made in the form of a plate placed between the connected parts; with a number of splined holes and concentric grooves on mating surfaces to connect parts. 2. The compound according to claim 1, characterized in that it is equipped with intermediate spline rings installed between the spline bands of the threaded rods and the hole of the retaining plate. SU ,,, 1259055