Vibroinsulated foundation supported by ring springs

FIELD: vibration protection, particularly to erect vibroinsulated foundations for machines and equipment subjected to dynamic loads.

SUBSTANCE: vibroinsulated foundation comprises bath, foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom and is pivotally connected to vibroinsulators. Each vibroinsulator is attached to foundation block by means of pivoted lever, which connects foundation block with support member of vibroinsulator. Each vibroinsulator has pendulum hanger made as threaded rod with spherical profile on one end thereof and comprises threaded bush fastened to the rod and having spherical profile. Both spherical profiles cooperate with conical surfaces of support vibroinsulator member and upper conical bush correspondingly. The resilient member of vibroinsulator is made as a number of serially connected resilient elements secured to bush along outer diameters thereof. The bush is fixedly connected to vibroinsulator base. Inner resilient element diameters are attached to bush, which encloses rod. One bush end abuts the last resilient element, another end cooperates with upper conical bush. Each annular resilient element may be formed as at least two flat resilient coaxial rings, namely inner and outer ones, which are fastened with each other by at least three resilient flat plates or resilient rods having round or polygonal sections. Each annular resilient element may be formed of at least two flat coaxial resilient rings, namely of upper and lower ones, connected with each other by at least three resilient flat plates, which are inclined to ring axes, or resilient rods having round or polygonal sections.

EFFECT: increased efficiency of volumetric vibroinsulation and simplified structure.

3 cl, 5 dwg

 

The invention relates to means of protection from the harmful effects of vibration and can be used in construction, in particular in devices vibroisolating of foundations for machines and equipment with dynamic loads.

The closest technical solution to the declared object is vibroisolating Foundation containing a bath placed therein with clearance relative to the walls and bottom of the base block, pivotally connected with vibration isolators installed in the bottom of the tub, as the USSR №1434037, E 02 D 27/44, 1986 (prototype).

The disadvantages of the prototype are: relatively low efficiency of spatial isolation and structural complexity due to the use of cetkovich supports.

The technical result - improving the efficiency of spatial isolation and simplification of the structure.

This is achieved by the fact that in vibroisolating Foundation containing a bath placed therein with clearance relative to the walls and bottom of the base block, pivotally connected with vibration isolators, each vibration absorber is connected with the base unit via a pivoting lever that connects the base block with a support element of insulator, and is made with a pendulum hanging in the form of a threaded rod with a spherical profile on one of its ends and connected to the rod d is ibovo sleeve, having a spherical profile, both profile interact with conical surfaces, respectively, of the support element of insulator and an upper conical sleeve, and the elastic element is made of insulator in the form of a package of series-connected annular elastic elements fixed on the outer diameter of the sleeve is rigidly connected with the base of the insulator, and an inner - sleeve, covering the rod, with one end of the sleeve abuts against the last in the package annular elastic element, and the other communicates with the upper conical sleeve.

1 shows a General scheme of the proposed Foundation, figure 2 is a frontal section of insulator, 3, 4, 5 variants of ring springs.

Vibroisolating Foundation contains a bath 1 placed therein with clearance relative to the walls 4 and 5 baths and bottom 1 base unit 2, pivotally connected with vibration isolators 3, installed in the bottom of the tub 1. The insulators 3 are associated with the base unit 2 through the hinge lever 6 connecting the base block 2 with the supporting element of the insulator 3 (figure 1). The insulators 3 are located between the walls 4 and 5 baths and is mounted on the plate 1.

Vibration absorber (figure 2) contains an elastic element, which interacts with the base 7 and the pendulum suspension 8, which is made in the de of the threaded rod 8 with a spherical profile 9 on one end and a threaded sleeve 10, connected with it and also having a spherical profile, both the spherical profile of the pendulum suspension interact with conical surfaces, respectively, of the bottom plate 11 and the upper conical sleeve 12, and the elastic element is designed in the form of package 13 series-connected annular elastic elements fixed on the outer diameter of the sleeve 14, is rigidly connected with the upper base plate 7, and the inner - sleeve 15, covering the rod 8 of the pendulum suspension, one end of which abuts against the last in the package annular elastic element, and the other communicates with the upper conical sleeve 9 pendulum suspension (figure 2). The annular elastic elements 13 are made in the form of at least two flat elastic coaxially arranged rings, the outer 16 and inner 17, interconnected by means of at least three elastic flat plates 18 (Fig 3). The grooves 19 and openings 20 in the springs can be cut down on the press, or laser cut. The annular elastic elements can be made in the form of at least two flat elastic coaxially arranged rings, the top 21 and bottom 22, interconnected by means of at least three elastic flat plates 23 arranged inclined relative to the axis of the rings (4, 5). Plate, connecting rings of the springs may be the imp is tive in the form of elastic rods of circular or polygonal profile (not shown).

Vibroisolating Foundation on ring springs operates as follows.

Under the application of static loads on the base block 2, i.e. when installing equipment, vibration isolators 3 give static draught on the calculated value depending on the weight of the machine. While the base block 2 goes down, compressing the spring 13. Vibration absorber with the Belleville springs operates as follows.

Fluctuations vibroisolating object (not shown)connected to the support plate 11 by means of screws, package of elastic elements 13 takes the vertical load, thus weakening the dynamic effects on the overlapping buildings. Horizontal loads are perceived pendulum suspension. By performing pendulum suspension with spherical profiles provides additional spatial vibration isolation equipment in all six directions of oscillations (on the three coordinate axes x, y, z, and turning around these axes).

The proposed solution is effective vibration protection means as equipment and operator, as well as simple and reliable in operation.

1. Vibroisolating Foundation containing a bath placed therein with clearance relative to the walls and bottom of the base block, pivotally connected with the vibration isolators, trichosis fact, each vibration absorber is connected with the base unit via a pivoting lever that connects the base block with a support element of insulator, and is made with a pendulum hanging in the form of a threaded rod with a spherical profile on one of its ends and connected with the shank of a threaded sleeve having a spherical profile, both profile interact with conical surfaces, respectively, of the support element of insulator and an upper conical sleeve, and the elastic element is made of insulator in the form of a package of series-connected annular elastic elements fixed on the outer diameter of the sleeve is rigidly connected with the base of the insulator, and an inner - sleeve, covering the rod at one end of the sleeve abuts against the last in the package annular elastic element, and the other communicates with the upper conical sleeve.

2. Vibroisolating the Foundation according to claim 1, characterized in that each annular elastic element is designed as at least two flat elastic coaxially arranged rings, external and internal, interconnected by means of at least three elastic flat plates or elastic rods of circular or polygonal profile.

3. Vibroisolating the Foundation according to claim 1, characterized in that each Col is eve elastic element is designed as at least two flat elastic coaxially arranged rings, the upper and lower interconnected by at least three elastic flat plates arranged inclined relative to the axis of the rings or elastic rods of circular or polygonal profile.



 

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FIELD: construction.

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FIELD: construction.

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EFFECT: increased bearing capacity, increased service life.

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