Vibroinsulated foundation

FIELD: vibration protection means for building industry, particularly vibroinulated foundations for machines, engines, or ordnance.

SUBSTANCE: vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. The bumper has pendulum suspension means and comprises compression spring cooperating with the base and with the pendulum suspension means. The pendulum suspension means is made as threaded rod connected to spherical washer formed on one end thereof and with threaded bush also attached to spherical washer end not connected with threaded rod. The spherical washers cooperate with not less than 3 balls located on conical surfaces of support members and cooperating with upper spring end and object to be protected against vibration correspondingly. Buffer limiting elastomeric members are installed in base.

EFFECT: increased efficiency of vibration protection and simplified foundation structure.

2 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, vibration dampers associated with the base unit via a pivoting lever and contain a compression spring that interacts with the substrate and the pendulum suspension, the latter is made in the form of a threaded rod with a spherical washer on one end and a threaded sleeve with sherice the coy washer at one of its ends, not associated with a threaded rod, with spherical washers interact with at least three balls are arranged on a conical surface of the supporting elements that communicate respectively with the upper end of the spring and with the pivot lever, and at the base of the posted buffer restrictive elements.

1 shows a General scheme of the proposed Foundation, figure 2 is a frontal section of the insulator.

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. The insulators 3 are made with pendulum suspension (figure 2) and contains a compression spring 13, which interacts with the base 7 and the pendulum suspension. The base is made in the form of lower 8 and upper 11 washers, interconnected cylindrical struts 9. To the bottom of the washer 8 is attached buffer element 10, and the upper washer 11 - buffer element 12 in the form of a ring. Buffer restrictive elements 10 and 12 are made of elastomer. Pendulum machining is executed in the form of a threaded rod 20, United with a spherical washer 23 on one end and a threaded sleeve 19, is also connected with a spherical washer 15 at one of its ends, is not associated with the screw rod, and a spherical washer 15 and 23 communicate with at least three balls 16 and 22, located on the conical surface of the supporting elements 17 and 24, respectively communicating with the upper end of the spring 13 and the articulated lever 5. The cover 14 protects the spring 13 from contamination and prevents the ingress of foreign objects, including work clothing, thereby increasing the safety of technological processes. Fixation of the spring is effected by pins 18 and 21, respectively installed in the support elements 17 and 24.

Vibroisolating the Foundation works in the following way. 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. Fluctuations vibroisolating object spring 13 takes the vertical load, thus weakening the dynamic effects, and horizontal loads are perceived pendulum suspension. To prevent shock at large oscillation amplitudes serve as buffer elements 10 and 12 of e is Stomer.

By performing pendulum suspension with spherical washers provided additional spatial vibration of the Foundation 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.

Vibroisolating Foundation containing a bath placed therein with clearance relative to the walls and bottom of the base block, pivotally connected with vibration isolators, characterized in that the vibration isolators are associated with the base unit via a pivoting lever and contain a compression spring that interacts with the substrate and the pendulum suspension, the latter is made in the form of a threaded rod with a spherical washer on one end and a threaded sleeve with a spherical washer at one of its ends, is not associated with the screw rod, with spherical washers interact with at least three balls located on the conical surface of the support elements, interacting respectively with the upper end of the spring and with the pivot lever, and at the base of the posted buffer restrictive elements.



 

Same patents:

FIELD: mechanical engineering, particularly large electrical machines and foundations for turbogenerator and hydraulic generators.

SUBSTANCE: foundation slab comprises stator body base including support part connected with foundation. Arranged between support part and foundation is damping panel including reinforcement formed as vertical rods. Foam plastic member is put on the vertical rods and grouted with concrete grout. Vertical rods are connected one to another in horizontal plane with wire arranged at least in two levels in vertical plane of damping panel. Vertical rods extend through support part, pass into stator body base and into foundation.

EFFECT: reduced dynamic pressure applied to foundation slab and increased structural rigidity.

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FIELD: construction, particularly new building erection and existent building reconstruction under any engineering-geological circumstances.

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Concrete base // 2055119
The invention relates to construction machinery, namely reinforced concrete machine frames and bases

FIELD: construction, particularly new building erection and existent building reconstruction under any engineering-geological circumstances.

SUBSTANCE: foundation structure comprises shallow foundation and reinforcement members. Reinforcement members are made as vertical bars of precast or cast-in-place piles having diameters less than 200 mm and arranged along foundation perimeter. The piles are spaced a distance from outer foundation faces. The distance is equal to 0.1-0.5 of reinforcement member diameter. Distance between neighboring piles is equal to 2-4 reinforcement member diameters and reinforcement member length is 15-20 diameters thereof.

EFFECT: increased load-bearing capacity due to creating compressive operational conditions under different engineering-geological circumstances, increased dynamic rigidity of foundation base and reduced foundation deformation and vibrational amplitude.

9 dwg

FIELD: mechanical engineering, particularly large electrical machines and foundations for turbogenerator and hydraulic generators.

SUBSTANCE: foundation slab comprises stator body base including support part connected with foundation. Arranged between support part and foundation is damping panel including reinforcement formed as vertical rods. Foam plastic member is put on the vertical rods and grouted with concrete grout. Vertical rods are connected one to another in horizontal plane with wire arranged at least in two levels in vertical plane of damping panel. Vertical rods extend through support part, pass into stator body base and into foundation.

EFFECT: reduced dynamic pressure applied to foundation slab and increased structural rigidity.

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FIELD: vibration protection means for building industry, particularly vibroinulated foundations for machines, engines, or ordnance.

SUBSTANCE: vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. The bumper has pendulum suspension means and comprises compression spring cooperating with the base and with the pendulum suspension means. The pendulum suspension means is made as threaded rod connected to spherical washer formed on one end thereof and with threaded bush also attached to spherical washer end not connected with threaded rod. The spherical washers cooperate with not less than 3 balls located on conical surfaces of support members and cooperating with upper spring end and object to be protected against vibration correspondingly. Buffer limiting elastomeric members are installed in base.

EFFECT: increased efficiency of vibration protection and simplified foundation structure.

2 dwg

FIELD: vibration protection means for building industry, particularly vibroinulated foundations for machines, engines, or ordnance.

SUBSTANCE: vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. Bumper has resilient member formed as two serially connected elastic resiliently-damping members divided with washer. Pendulum suspension means of the bumper is made as threaded pin having the first end connected to hinged lever and the second end connected to nut and thrust washer, which are connected to bush. The bush is attached to resilient member. The thrust washer is made of resilient material. Resiliently-damping member is formed as pleached strands or tangled wires.

EFFECT: increased efficiency of three-dimensional vibration protection and simplified foundation structure.

2 dwg

FIELD: vibration protection means for building industry, particularly vibroinulated foundations for machines, engines, or ordnance.

SUBSTANCE: vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. The bumper has pendulum suspension means made as threaded rod with spherical profile on one rod end and threaded bush also having spherical profile. Both spherical profiles cooperate with conical surfaces of upper and lower plates correspondingly. Resilient member is made as serially connected resilient discs connected with outer bush surface along inner disc diameters. One bush end is fixedly secured to the base, another bush end is slidably installed in guiding bush.

EFFECT: increased efficiency of three-dimensional vibration protection and simplified foundation structure.

2 dwg

FIELD: vibration protection means for building industry, particularly vibroinulated foundations for machines, engines, or ordnance.

SUBSTANCE: vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. The bumper has pendulum suspension means made as threaded rod with spherical profile on one rod end and threaded bush also having spherical profile. Both spherical profiles cooperate with conical surfaces of upper and lower plates correspondingly. Resilient member is made as serially connected resilient disc means formed as disc springs connected with each other along outer diameters by means of ring having T-shaped profile and along inner diameters by means of ring having inner surface cooperating with outer bush surface. One bush end is fixedly secured to the base, another bush end is slidably installed in guiding bush.

EFFECT: increased efficiency of three-dimensional vibration protection and simplified foundation structure.

2 dwg

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

FIELD: construction.

SUBSTANCE: invention is related to means of protection against hazardous effect of vibration and may be used in construction, in particular in arrangement of vibration-insulated foundations for machines and equipment with dynamic loads. Foundation on vibroprotective elements comprises bath, foundation unit arranged in it with clearance versus walls and bottom and hingedly joined to vibration isolators installed in bath bottom. Vibration isolators are joined to foundation unit by means of hinged lever, which connects foundation unit to support element of vibration isolator, which comprises elastic element, body and pendulum suspension. Body is arranged in the form of box with lower base and upper plate with hole for threaded pin of pendulum suspension, which are connected to each other by three side ribs, with creation of window for accommodation of support lever, on which vibration-insulated object is arranged. Elastic element is arranged in the form of three serially connected elements: elastic ones and elastic-damping element arranged in between. Elastic elements with one of their bases are installed in bushes, which are fixed accordingly on upper plate of body and cover, and rest against washers with their other bases, and washers are joined with elastic-damping element. Pendulum suspension is arranged in the form of threaded pin, which is connected by one end to support lever for fixation of vibration-insulated object, and by other end - to nut and thrust washer, which is joined to cover attached to elastic element. Elastic-damping element is arranged in the form of steel-wire weaving or metal thread waste.

EFFECT: increased efficiency of spatial vibration insulation and simplified design.

2 dwg

FIELD: construction.

SUBSTANCE: inventions relate to the field of foundation engineering of deep burial for important objects, such as nuclear power plants. Method for erection of nuclear power plant foundation consists in engineering-geological survey with detection of soil foundation layers depth, which complies with depth of active compressing thickness H, its physical-mechanical properties: angle φ of inner friction, c - specific adhesion, γ - density, E0 - module of common deformation, µ0 - coefficient of Poisson, which correspond to design elastic compressing load under deep buried foundation, in erection of mine pit with shape that corresponds to foundation, filling of filled layer of soil onto mine pit bottom and its compaction, erection of curb with reinforcement frame inside and its filling with high grade concrete. Foundation, which is solid in plan, is given convex spherical shape, which is inscribed in plan into configuration of monolithic foundation by radius of circumference, radius of sphere is identified by given dependencies, as well as maximum angle of elastic semi-contact of foundation sphere with soil foundation, pressure of structural tensile strength of foundation, central critical pressure under center of sphere in maximum elastic base. Bottom of mine pit for concave foundation is arranged with response spherical groove.

EFFECT: improved bearing capacity of foundation, improved elastic contact interaction of foundation with underlying soil foundation.

2 cl, 7 dwg

FIELD: construction.

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EFFECT: increased bearing capacity, increased service life.

4 cl, 2 ex, 15 dwg

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