RU221337U1 - COUPLING - Google Patents

Abstract

The utility model relates to elastic connections, namely couplings with an elastic element made of straight steel rope rods. The coupling contains paired-composite driving and driven flanges, a prefabricated elastic-damping element from individual sections of steel rope, means for fastening elastic-damping pieces of steel rope to the driving and driven flanges of the coupling, means for fastening the driving and driven flanges, respectively, to the shafts of the power plant and the energy receiver. Each elastic-damping piece of steel rope has a radially symmetrically curved shape with the formation of an eyelet loop in the middle. The location of the driving and driven flanges relative to each other is concentric. The leading outer and inner flanges are made with semicircular symmetrically mirror grooves to accommodate the ends of the steel rope of the elastic element. The driven outer and inner flanges are made with corresponding holes for screws to accommodate a loop-eye of a piece of steel rope with subsequent pressing between the driven outer and inner flanges. The driven outer and inner flanges are also made with holes for mounting with the driven shaft of the energy consumer. The ends of the steel rope sections are made with an additional means of fastening in the form of welding; welding of the ends of the rope is carried out to the outer and inner drive flanges after assembling the coupling. Minimum thickness and maintainability of the coupling are achieved.

Description

The utility model relates to elastic connections, namely couplings with an elastic element made of straight steel rope rods.

Couplings with an elastic element made of steel straight rope rods are known, for example, “Cassette coupling” according to RF patent No. 2770235 [1], which contains an elastically damping steel rope element, coupling halves, star-shaped push blocks, star rays, fasteners, cassettes in the form of longitudinal-radial slots, fixed ends of coupling half shanks, shank hole with keyway, threaded hole.

A single piece of steel rope of the elastic-damping element is placed in longitudinal cassettes in a zigzag pattern around the outer end parts of the star beams of the driving and driven flanges to form loops and a straight rod bundle of the element. The driving and driven elements of the coupling are made composite and contain, respectively, coupling halves, star-shaped pressure blocks with the formation of longitudinal-radial cassettes between the rays of the stars. Both ends of the steel rope of the elastic-damping element are installed in specially made longitudinal holes of the star-shaped pressure block. The fixation and fastening of the loops and ends of the steel rope is carried out using fasteners, together with half-couplings using star-shaped push blocks.

A significant disadvantage of this [1] coupling is the complexity and bulkiness of its design.

The closest to the proposed invention in terms of technical essence and achieved result is the coupling according to the patent for utility model No. 137585 [2], which contains the driving and driven parts, an elastic-damping unit placed between them, made of bundles of steel rope with supports. The means of fastening the ends of the steel rope bundle to the supports is welding (soldering, gluing).

A significant disadvantage of the coupling [2], adopted as a prototype, is also the bulkiness of the coupling design.

The technical result of the proposed utility model is to ensure minimum dimensions and maintainability of the coupling design. The technical result is achieved by:

1. Each elastic-damping section of the steel rope is made of a radially symmetrically curved shape with the formation of an eye loop in the middle;

2. The location of the driving and driven flanges is concentric relative to each other.

3. The driving and driven flanges are made of composite parts - with outer and inner flanges, respectively.

4. The outer and inner flanges of the drive flange are made with semicircular symmetrical-mirror grooves to accommodate the ends of the steel rope of the elastic element, as well as corresponding holes for connecting and fastening the ends of the steel rope and the flanges themselves to the shaft of the power plant.

5. The outer and inner flanges of the driven flange are made with corresponding holes for screws to accommodate the loop-eye of a piece of steel rope with subsequent pressing of the loop-eye between them, the latter are also made with holes for fastening with the driven shaft of the energy consumer.

6. The ends of the steel rope sections are made with an additional means of fastening in the form of welding after assembling the coupling, with the help of which the ends of the rope sections are welded to the outer and inner flanges of the coupling drive flange.

The essence of the utility model is illustrated by drawings, which show:

fig. 1 - general view of the coupling;

fig. 2 - leading outer flange of the coupling;

fig. 3 - radial-transverse view of the semicircular groove at the end of the steel rope on the leading outer flange of the coupling;

fig. 4 - end view of the semicircular grooves for the ends of the steel rope on the drive outer flange of the coupling;

fig. 5 - view of the holes for the mounting screws on the drive outer flange of the coupling;

fig. 6 - leading internal flange of the coupling;

fig. 7 - radial-transverse view of the semicircular groove at the end of the steel rope on the leading inner flange of the coupling;

fig. 8 - end view of the semicircular grooves for the ends of the steel rope on the driving inner flange of the coupling;

fig. 9 - view of the holes for the mounting screws on the drive internal flange of the coupling;

fig. 10 - driven outer flange of the coupling;

fig. 11 - driven inner flange of the coupling.

Figures 1-11 indicate the following design elements of the coupling:

1 - prefabricated elastic-damping element from individual sections of steel rope;

2 - leading outer flange of the coupling;

3 - leading internal flange of the coupling;

4 - driven outer flange of the coupling;

5 - driven internal flange of the coupling;

6, 7 - fasteners;

8, 9 - holes for fastening leading flanges

2, 3 to the drive shaft of the power plant;

10, 11 - holes for attaching driven flanges 4 to the driven shaft of the energy receiver;

12-15 - semicircular symmetrically mirror grooves on the leading outer 2 and inner 3 flanges for placing the ends of the steel rope of the elastic element 1 (Fig. 1);

16 - eyelet loop formed on each piece of elastic steel rope element 1 (Fig. 1).

17, 18 - ends of a piece of steel rope, placed (installed) in the corresponding semicircular symmetrical-mirror grooves 12-15 on the leading outer 2 and inner 3 flanges of the coupling (Fig. 1-4, 6-8);

19, 20 - welding of steel rope ends. Note that, depending on the design features of the drive and driven shafts of the power plant and the energy receiver, the names of the drive and driven flanges adopted here can be vice versa.

The coupling contains composite leading 2, 3 and driven 4, 5 flanges, a prefabricated elastic-damping element 1 from separate pieces 16-18 of steel rope, means 6, 7 (Fig. 1) for attaching elastic-damping pieces of steel rope to the driving 2, 3 and driven 4, 5 coupling flanges, means 8, 9 for fastening the driving and driven flanges, respectively, to the shafts of the power plant and the energy receiver (not shown in Fig. 1-11).

Each elastic-damping section 16-18 of the steel rope has a radially symmetrically curved shape with the formation of an eyelet loop 16 in the middle.

The location of the leading 2, 3 and driven 4, 5 flanges relative to each other is concentric.

The leading outer 2 and inner 3 flanges are made with semicircular symmetrically mirror grooves 12, 13 and 14, 15 (Fig. 1, 2-4, 6-8) to accommodate the ends 17, 18 of the steel rope of the elastic element.

The driven outer 4 and inner 5 flanges are made with corresponding holes for screws 7 (Fig. 1, 10, 11) to accommodate the eyelet loop 16 of a piece of steel rope with subsequent pressing between the driven outer and inner flanges.

The driven outer 4 and inner 5 flanges are also made with holes 10, 11 (Fig. 1) for mounting with the driven shaft of the energy consumer (not shown in Fig. 1-11).

The ends of the steel rope sections are made with an additional means of fastening in the form of welding 19, 20 (Fig. 1). welding of the ends of the rope is carried out to the outer 2 and inner 3 leading flanges after assembling the coupling.

The proposed technical solution of the design, when used as a coupling of a diesel generator unit with a common (full) shock absorption system, that is, the drive diesel and the energy receiver - the generator are installed on a common supporting frame, works as follows.

When torque is applied from the drive motor through the drive flanges 2, 3 (Fig. 1) to the elastic-damping steel rope elements 1, relative angular movement of the drive 2, 3 and driven 4, 5 flanges of the coupling occurs. The relative displacements of the leading 2, 3 and driven 4, 5 (Fig. 1) parts that arise are eliminated due to the simultaneous stretching of the steel rope within the limits of the structurally existing gaps between the wires and strands of the steel rope and the elastic stretching of the spiral wires of the rope, as well as the calculated radial and longitudinal bending of the rope.

Thus, when operating a diesel generator set with a common supporting frame with transmission of torque from the diesel engine to the generator, the elastic rope elements of the coupling, due to the opposite moment of elastic forces, as well as the elastic forces of bending and axial displacement, ensure a decrease in the amplitudes of the interconnected torsional-flexural axial vibrations of the system " diesel-clutch-generator".

Due to the possibility of changing the number of elastic rope elements of the coupling, using rope sections of different diameters and assortments, as well as their working length, the proposed coupling design expands its ability to change the elastic-damping characteristics, nominal torque and dimensions.

The given features of the proposed coupling also confirm the maintainability of the coupling.

Claims (1)

A coupling containing driving and driven flanges, a prefabricated elastic-damping element made from individual sections of steel rope, means for fastening the elastic-damping steel rope to the driving and driven flanges of the coupling, means for fastening the driving and driven flanges, respectively, to the shafts of the power plant and the energy receiver, characterized in that each elastic-damping a section of steel rope is made of a radially symmetrically curved shape with the formation of a loop-eye in the middle and is placed between concentrically located relative to each other leading and driven flanges, made of paired composites - with outer and inner flanges, respectively, the outer and inner driving flanges are made with semicircular symmetrically mirror grooves, as well as corresponding holes for connecting and fastening the ends of the steel rope and the flanges themselves to the shaft of the power plant, the driven outer and inner flanges are made with corresponding holes for screws to accommodate the loop-eye of a piece of steel rope with subsequent pressing of the loop-eye between the driven outer and internal flanges, the latter are made with holes for fastening with the driven shaft of the energy consumer, while the ends of the steel rope sections are additionally secured by welding to the outer and inner drive flanges of the coupling.

Images