Навантажувальна здатність муфт із торцевою установкою канатів різних варіантів розташування

Анотація

LOAD CAPACITY OFCOUPLINGS WITH FACE INSTALLATION ROPES WITH DIFFERENT LOCATION

V. Protsenko, O. Klementyeva

Designing modern machines requires the establishment of effective structures of parts that should be characterized by opportunities rivnomitsnistyu. You must be clear about the specific impact of different machines on the requirements for parts and assembly units for general purposes. This requires new theoretical and experimental studies of machine parts.

In previous studies the authors proposed a new design of couplings with face installation of cables - to the ropes clutches and couplings chordal arrangement of ropes tangential location. Completed study of some structural and power parameters such couplings, but the ratio of characteristics, including load capacity, these joints for detection of pre-emptive use of each design, not installed.

The purpose of the study is theoretical load capacity coupling with face installation of cables and chordal tangential location.

Presenting main material. When considering similar for both structural coupling scheme, the authors found that the coupling consists of two half-coupling - foreign and domestic, are connected by elastic elements, which are the ropes. Ropes missed a transverse holes and hole plugs fingers. Fingers in the coupling of the tangential location of cables installed in their half coupling on circles of different diameters and D_зв, D_вн, and the coupling of a chordal – in one circle diameter D_зв (for which the axis of the rope is the chord).

To evaluate the load capacity calculation scheme were considered clutches of a chordal cables whose D_зв = 145 mm d_к = 4.0 mm d_вт = 24 mm.

One of the main source data during verification of these conditions exist clutches, except these are offset mounting angle ξ half-coupling, which determines the loading of ropes and load capacity coupling, so by changing it you can change the date clutch. Another condition for the existence of tangentially coupling is placed ropes conditionTo establish the mutual influence of design parameters couplings with a tangential rope Numerical simulation contains formulas for multiple options relationships socket design parameters.When calculations using the basic design parameters similar coupling with spaced chordal ropes. The results of numerical modeling of options for multiple correlations socket design parameters are given in the form of graphs.

As a result of the research the following conclusions:

1. It is shown that with the same dimensions, the number of cables (z = 8) and their working tension sleeve with chordal their location has 18 % more load capacity (Т_х = 536 Nm) than a tangential clutch of ropes (Т_т = 439 Nm ).

2. established that the identical dimensions, diameter and set your tension cables, clutches of chordal tangential and their location can have almost the same load capacity (Т_х = 536 Nm, Т_т = 515 Nm), but its provision needs to increase the number of cables in z a tangential clutch of 50 % (from 8 to 12 pcs.).

3. It is shown that the coupling of tangentially arranged with decreasing diameter ropes and working tension cables 2 times and increasing their number 3 times possible to provide loading capacity(Т_т = 603 Nm) with adequate basic chordal coupling located cables(Т_х = 536 Nm) at constant dimensions.