CN218152128U

CN218152128U - Mechanical active vibration damping and isolating platform

Info

Publication number: CN218152128U
Application number: CN202222374545.1U
Authority: CN
Inventors: 李建军
Original assignee: Wuhan Xingpu Intelligent Technology Co ltd
Current assignee: Wuhan Xingpu Intelligent Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2022-12-27
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a mechanical type initiative damping vibration isolation platform relates to damping technical field, specifically is a mechanical type initiative damping vibration isolation platform, including platform support and unsteady board, the platform support includes landing slab and backup pad, the middle fixedly connected with screw-nut of landing slab, the integrative motor of the middle fixedly connected with ball screw of unsteady board, the assembly is adjusted to the peripheral fixedly connected with damping of unsteady board, the assembly is adjusted to the damping includes the damping cover. Through screw-nut, the integrative motor of ball screw, damping adjustment assembly and displacement sensor's cooperation setting, make this mechanical type initiative damping vibration isolation platform possess the effect that simple structure cost is low, through the cooperation setting of damping adjustment assembly and unsteady frock assembly, make this mechanical type initiative damping vibration isolation platform possess the frock board and be convenient for take off and then be convenient for according to the effect of product installation location frock.

Description

Mechanical active vibration damping and isolating platform

Technical Field

The utility model relates to a damping technical field specifically is a mechanical type initiative damping vibration isolation platform.

Background

The vibration isolation platform is generally arranged at the bottom of instrument equipment to play a role in supporting and damping, the vibration isolation platform is divided into two categories, namely passive vibration attenuation and active vibration attenuation, the active vibration attenuation system generally comprises a controlled system, a controller, a driver, a sensor and the like, external vibration interference acts in the controlled system, the controlled system generates a response system output, the sensor detects an output quantity and transmits the output quantity to the controller, the controller controls the driver to work according to the output quantity, the driver can work to adjust key parameters including system rigidity and damping, and the parameters of the dynamic adjustment system are sequentially and continuously cycled to realize active vibration attenuation.

But there are some defects in the use in current initiative damping vibration isolation platform, and the complicated cost of structure is high on the one hand, and on the other hand frock board is not convenient for take off and leads to being not convenient for according to product installation location frock.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a mechanical type initiative damping vibration isolation platform has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a mechanical type initiative damping vibration isolation platform, includes platform support and unsteady board, the platform support includes landing slab and backup pad, the middle fixedly connected with screw-nut of landing slab, the integrative motor of the middle fixedly connected with ball screw of unsteady board, the assembly is adjusted in the peripheral fixedly connected with damping of unsteady board, the damping is adjusted the assembly and is included the damping cover, the inside of damping cover is provided with rubber circle and gasket, it has the copper sheathing to peg graft in the middle of rubber circle, be provided with the spacer ring between damping adjustment assembly and the landing slab, one side fixedly connected with displacement sensor that unsteady board is close to the integrative motor of ball screw, the top that the assembly was adjusted in the damping is provided with unsteady frock assembly, unsteady frock assembly includes the frock board, the peripheral fixedly connected with optical axis of frock board, be provided with compression spring between frock board and the landing slab, the below fixedly connected with vibration sensor of frock board.

Preferably, be provided with the interval between landing slab and the floating plate, the lead screw of the integrative motor top of ball screw from bottom to top pass screw-nut and with the frock board between be provided with the interval.

Preferably, the outer diameter of the rubber ring is the same as the inner hole of the damping sleeve, and the inner hole of the rubber ring is the same as the outer diameter of the copper sleeve.

Preferably, the gasket is in clearance fit with the damping sleeve, and the size of an inner hole of the gasket is larger than the size of the outer diameter of the copper sleeve.

Preferably, the rubber rings and the gaskets are overlapped in the damping sleeve at intervals, the bottoms and the tops of the rubber rings are all the rubber rings, and the upper surface of the top rubber ring is lower than the upper surface of the damping sleeve.

Preferably, the spacing ring is inserted above the damping sleeve and in clearance fit, and the inner diameter and the outer diameter of the spacing ring are the same as those of the gasket.

Preferably, the compression spring is sleeved on the outer surface of the optical axis, the upper end and the lower end of the compression spring are respectively provided with a top spring sleeve and a bottom spring sleeve, and the inner hole size of the bottom spring sleeve and the inner diameter size of the compression spring are both larger than the outer diameter of the optical axis.

(III) advantageous effects

The utility model provides a mechanical type initiative damping vibration isolation platform possesses following beneficial effect:

1. this mechanical type initiative damping vibration isolation platform, through screw-nut, the integrative motor of ball screw, damping adjustment assembly and displacement sensor's cooperation setting, make this mechanical type initiative damping vibration isolation platform possess the effect that simple structure cost is low, the transmission of the integrative motor of ball screw during operation accessible screw-nut changes the pressure that receives from top to bottom of the inside rubber circle of damping adjustment assembly, the more big external force that the deflection of rubber circle is big more and then the copper sheathing receives is big more for the big time, the more big external force that the copper sheathing received is difficult more and vibrations and then restrain resonance and produce.

2. This mechanical type initiative damping vibration isolation platform, the cooperation through damping adjustment assembly and unsteady frock assembly sets up, make this mechanical type initiative damping vibration isolation platform possess the frock board and be convenient for take off and then be convenient for according to the effect of product installation location frock, the optical axis from the top of unsteady frock assembly inserts the inside of damping adjustment assembly and does not use any part to connect, and then unsteady frock assembly directly upwards mentions can take off convenience very and then be convenient for according to product installation location frock.

Drawings

Fig. 1 is a schematic structural view of a three-dimensional view of the present invention;

FIG. 2 is a schematic structural view of the front view of the present invention;

fig. 3 is a schematic structural view of a cross-sectional view of the present invention;

fig. 4 is a schematic structural view of the damping adjustment assembly of the present invention.

In the figure: 1. a platform support; 101. a platform plate; 102. a support plate; 2. a floating plate; 3. a feed screw nut; 4. a ball screw integrated motor; 5. a damping adjustment assembly; 501. a damping sleeve; 502. a rubber ring; 503. a gasket; 504. a copper sleeve; 6. a spacer ring; 7. a displacement sensor; 8. a floating tool assembly; 801. assembling a plate; 802. an optical axis; 9. a compression spring; 10. a vibration sensor; 11. a top spring housing; 12. and a bottom spring housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a mechanical active vibration reduction and isolation platform comprises a platform support 1 and a floating plate 2, wherein the platform support 1 comprises a platform plate 101 and a support plate 102, a lead screw nut 3 is fixedly connected in the middle of the platform plate 101, a ball screw integrated motor 4 is fixedly connected in the middle of the floating plate 2, a damping adjustment assembly 5 is fixedly connected on the periphery of the floating plate 2, the damping adjustment assembly 5 comprises a damping sleeve 501, a rubber ring 502 and a gasket 503 are arranged inside the damping sleeve 501, the rubber ring 502 and the gasket 503 are overlapped in the damping sleeve 501 at intervals, the bottom and the top of the rubber ring 502 are both rubber rings 502, the upper surface of the top rubber ring 502 is lower than the upper surface of the damping sleeve 501, a copper sleeve 504 is inserted in the middle of the rubber ring 502, the outer diameter of the rubber ring 502 is the same as the inner hole of the damping sleeve 501, the inner hole of the rubber ring 502 is the same as the outer diameter of the copper sleeve 504, and the gasket 503 is in clearance fit with the damping sleeve 501, the size of an inner hole of the gasket 503 is larger than the outer diameter of the copper sleeve 504, a spacing ring 6 is arranged between the damping adjustment assembly 5 and the platform plate 101, the spacing ring 6 is inserted above the damping sleeve 501 and is in clearance fit, the inner and outer diameter of the spacing ring 6 is the same as the inner and outer diameter of the gasket 503, one side of the floating plate 2 close to the ball screw integrated motor 4 is fixedly connected with a displacement sensor 7, a floating tool assembly 8 is arranged above the damping adjustment assembly 5, the floating tool assembly 8 comprises a tool plate 801, the periphery of the tool plate 801 is fixedly connected with an optical axis 802, a space is arranged between the platform plate 101 and the floating plate 2, a screw rod above the ball screw integrated motor 4 penetrates through the screw rod nut 3 from bottom to top and is arranged with the tool plate 801, a vibration sensor 10 is fixedly connected below the tool plate 801, and a compression spring 9 is arranged between the tool plate 801 and the platform plate 101, compression spring 9 cup joints the surface at optical axis 802, and compression spring 9's upper and lower end is provided with top spring housing 11 and bottom spring housing 12 respectively, and the internal hole size of bottom spring housing 12 and compression spring 9's internal diameter size all are greater than the external diameter of optical axis 802.

When in use, the mechanical active vibration reduction and isolation platform is mainly placed in a precision equipment laboratory and used for fixing equipment which generates vibration when working, such as a blower, a generator, a vacuum pump and the like, the mechanical active vibration reduction and isolation platform can avoid the equipment which generates vibration from influencing the use of the precision equipment, the mechanical active vibration reduction and isolation platform is fixed on the ground through a platform bracket 1, then the equipment which needs vibration reduction is placed on the upper surface of a floating tool assembly 8, the position of the equipment which needs vibration reduction is further adjusted to ensure that the center of gravity is in the middle of the floating tool assembly 8, the equipment which needs vibration reduction is further marked and the floating tool assembly 8 is taken out, the floating tool assembly 8 is taken out for conveniently and fixedly installing the tool above the floating tool assembly 8, the tool is used for fixing the equipment which needs vibration reduction, as the optical axis 802 of the floating tool assembly 8 is inserted into the damping adjustment assembly 5 from top to bottom without using any component for connection, then the floating tool assembly 8 can be taken down conveniently by directly lifting up, the floating tool assembly 8 provided with the positioning tool is further inserted above the damping adjustment assembly 5, the equipment needing damping is further fixed above the floating tool assembly 8, the equipment needing damping works above the floating tool assembly 8 at the moment, the precision equipment in a laboratory is not influenced by the damping of the floating tool assembly 8 through the compression spring 9 and the damping adjustment assembly 5 and the vibration of the equipment working, the vibration sensor 10 constantly detects the vibration amplitude and the frequency of the floating tool assembly 8 in the process, if the vibration frequency is small and the amplitude is large, resonance is easy to generate, and further, if the vibration amplitude is large and the frequency is small, the floating tool assembly 8 works in the ball screw integrated motor 4, the integrative motor of ball screw 4 during operation is because screw-nut 3 is motionless and then integrative motor of ball screw 4 up mentions together with floating plate 2, spacer ring 6 presses 5 inside damping adjustment assemblies to make rubber circle 502 extrusion deformation at this in-process, tightly hold copper sheathing 504 after rubber circle 502 extrusion deformation and make copper sheathing 504 vibration and then avoid resonant production by a wide margin again, the integrative motor of ball screw 4 work when vibration sensor 10 detects that the vibrations of floating frock assembly 8 get back to normal condition drives floating plate 2 down to the primary importance promptly rubber circle 502 and resumes normal condition, the effect of displacement sensor 7 detects that floating plate 2 rises at this in-process, the distance that descends, this vibration isolation platform passes through integrative motor of ball screw 4 compression a plurality of rubber circles 502 and accomplishes initiative shock attenuation simple structure cost promptly and hangs down.

To sum up, this mechanical type initiative damping vibration isolation platform, through screw-nut 3, ball screw integrated motor 4, damping adjustment assembly 5 and displacement sensor 7's cooperation setting, make this mechanical type initiative damping vibration isolation platform possess the effect that simple structure cost is low, ball screw integrated motor 4 during operation accessible screw-nut 3's transmission changes the pressure that receives from top to bottom of the inside rubber circle 502 of damping adjustment assembly 5, the bigger is the pressure the bigger the deflection of rubber circle 502 and then the external force that copper sheathing 504 received is big more, the external force that copper sheathing 504 received is big more difficult to shake by a wide margin and then restrain resonance and produce, set up through the cooperation of damping adjustment assembly 5 and unsteady frock assembly 8, make this mechanical type initiative damping vibration isolation platform possess frock board 801 and be convenient for take off and then be convenient for according to the effect of product installation location frock, optical axis 802 of frock assembly 8 inserts the inside from top to bottom damping adjustment assembly 5 and do not use any part to connect, and then unsteady frock 8 is direct to mention convenience of getting off and then be convenient for according to the product installation location frock very.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a mechanical type initiative damping vibration isolation platform, includes platform support (1) and floating plate (2), its characterized in that: platform support (1) includes landing slab (101) and backup pad (102), the middle fixedly connected with screw-nut (3) of landing slab (101), the integrative motor of the middle fixedly connected with ball screw (4) of floating plate (2), peripheral fixedly connected with damping regulation assembly (5) of floating plate (2), damping regulation assembly (5) are including damping cover (501), the inside of damping cover (501) is provided with rubber circle (502) and gasket (503), the centre of rubber circle (502) is pegged graft and is had copper sheathing (504), be provided with spacer ring (6) between damping regulation assembly (5) and landing slab (101), one side fixedly connected with displacement sensor (7) that floating plate (2) are close to integrative motor of ball screw (4), the top of damping regulation assembly (5) is provided with unsteady frock assembly (8), unsteady frock assembly (8) include frock board (801), the peripheral fixedly connected with optical axis (802) of frock board (801), be provided with between frock board (801) and landing slab (101) and compress the fixed spring (9), the frock board (801) vibration sensor (801) below (801).

2. The mechanical active vibration damping and isolating platform according to claim 1, wherein: be provided with the interval between landing slab (101) and floating plate (2), the lead screw of ball screw integrative motor (4) top from bottom to top pass screw-nut (3) and with frock board (801) between be provided with the interval.

3. The mechanical active vibration damping and isolating platform according to claim 1, wherein: the outer diameter of the rubber ring (502) is the same as the inner hole of the damping sleeve (501), and the inner hole of the rubber ring (502) is the same as the outer diameter of the copper sleeve (504).

4. The mechanical active vibration damping and isolating platform according to claim 1, wherein: the gasket (503) is in clearance fit with the damping sleeve (501), and the size of an inner hole of the gasket (503) is larger than the size of the outer diameter of the copper sleeve (504).

5. The mechanical active vibration damping and isolating platform according to claim 1, wherein: the rubber ring (502) and the gasket (503) are overlapped in the damping sleeve (501) at intervals, the bottom and the top of the damping sleeve are both the rubber ring (502), and the upper surface of the top rubber ring (502) is lower than that of the damping sleeve (501).

6. The mechanical active vibration damping and isolating platform according to claim 1, wherein: the spacing ring (6) is inserted above the damping sleeve (501) and in clearance fit with the damping sleeve, and the inner diameter and the outer diameter of the spacing ring (6) are the same as those of the gasket (503).

7. The mechanical active vibration damping and isolating platform according to claim 1, wherein: compression spring (9) cup joint the surface at optical axis (802), the upper and lower end of compression spring (9) is provided with top spring housing (11) and bottom spring housing (12) respectively, the hole size of bottom spring housing (12) and the internal diameter size of compression spring (9) all are greater than the external diameter of optical axis (802).