CN215390563U

CN215390563U - Stop limiting device for array equipment of vibration table

Info

Publication number: CN215390563U
Application number: CN202121816805.5U
Authority: CN
Inventors: 田金; 刘海超; 陈明华
Original assignee: Beijing Bbk Test Systems Co ltd
Current assignee: Beijing Bbk Test Systems Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-04
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses a stop limit device for array equipment of a vibration table, which comprises a fixed plate, wherein a first through hole penetrating through the center of the fixed plate is arranged, the bottom surface of the fixed plate is fixedly connected with a support steel frame, the top surface of the fixed plate is fixedly connected with a support seat, the center of the support seat is provided with a hollow cavity, a buffer mechanism is embedded in the support seat, the bottom of the buffer mechanism is abutted against the fixed plate, the top surface of the support seat is in contact fit with a limit plate, any side of the bottom surface of the limit plate is provided with a notch, the bottom of the limit plate is provided with a spherical structure, the spherical structure is matched with the top of the buffer mechanism, and the top surface of the limit plate is fixedly connected with a table top of the vibration table; the device has a simple structure, is convenient to use, can accurately realize the complete space positioning of all sub-tables of the multi-degree-of-freedom vibration table array equipment during shutdown without depending on an electric control system for adjustment, and prevents large deformation such as torsion, stretching, compression and the like of a test piece fixed above a plurality of table arrays so as to damage the test piece.

Description

Stop limiting device for array equipment of vibration table

Technical Field

The utility model relates to the field of vibration tables, in particular to a stop limiting device for array equipment of a vibration table.

Background

The vibration table array device generally comprises two or more vibration tables capable of realizing multi-degree-of-freedom motion, and a test specimen mounted above the vibration table array device is generally a large-span integral specimen fixed above each vibration table in a segmented manner (as shown in fig. 1 below). When the array equipment is required to be stopped, the stop position of each vibration table is accurate, and relative displacement and relative rotation angle cannot occur between each other, so that the whole test piece is prevented from being deformed such as distortion, stretching, compression and the like, and the test piece is prevented from being damaged. In the prior art (as shown in fig. 2 below), when the array device is stopped, a large plane is formed to vertically support the vibration table by means of devices such as spiral elevators arranged at multiple points below the vibration table. The limiting device needs to adopt an active control mode, the motor is controlled by the electrical control system to drive the spiral lifters to complete ascending and descending actions, supporting and limiting when the array equipment is shut down are met, control logic is complex, misoperation is easily caused, and under the condition of accidental power failure, the array equipment can not be shut down safely, and damage to a test piece is caused. Therefore, a stop limit device for the array equipment of the vibration table, which is simple to operate and safer to use and is composed of mechanical mechanisms, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stop limiting device for array equipment of a vibration table, which is used for solving the problems in the prior art.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a stop limit device for array equipment of a vibrating table, which comprises a fixed plate, wherein a first through hole penetrating through the center of the fixed plate is formed in the center of the fixed plate, a support steel frame is fixedly connected to the bottom surface of the fixed plate, a support seat is fixedly connected to the top surface of the fixed plate, a hollow cavity is formed in the center of the support seat, a buffer mechanism is embedded in the support seat, the bottom of the buffer mechanism is abutted against the fixed plate, the top surface of the support seat is in contact fit with a limit plate, a notch is formed in any side of the bottom surface of the limit plate, a spherical structure is arranged at the bottom of the limit plate, the spherical structure is matched with the top of the buffer mechanism, and the top surface of the limit plate is fixedly connected with a table top of the vibrating table.

Preferably, the buffer mechanism comprises a limiting column and an elastic piece;

the limiting column is positioned in the hollow cavity of the supporting seat, the top surface of the limiting column is a spherical surface, and the spherical surface is matched with the spherical structure at the bottom of the limiting plate;

a groove is formed in the inner side of the top of the supporting seat, a protrusion is arranged on the top of the limiting column, the groove is matched with the protrusion, the elastic piece is abutted to the bottom of the protrusion, the elastic piece is sleeved on the limiting column, and the bottom of the elastic piece is abutted to the top surface of the fixing plate;

the bottom of the limiting column is connected in the first through hole in a sliding mode.

Preferably, the notch is an arc-shaped notch, and the notch is located on the outer side of the spherical structure.

Preferably, the top surface of the fixing plate is circumferentially provided with a plurality of step holes at equal intervals, the support steel frame is provided with a plurality of first threaded holes corresponding to the step holes in position and matched with the step holes, first bolts penetrate through the step holes and are in threaded connection with the first threaded holes, and the top surfaces of the first bolts are located in the step holes.

Preferably, a plurality of second through holes are formed in the bottom of the supporting seat at equal intervals in the circumferential direction, a plurality of second threaded holes corresponding to the second through holes are formed in the fixing plate, and second bolts penetrate through the second through holes and the second threaded holes.

Preferably, the spherical structure is an arc surface arranged at the center of the bottom surface of the limiting plate.

Preferably, the elastic member is a rigid spring.

The utility model discloses the following technical effects: the fixed plate is fixedly connected on the supporting steel frame, the supporting seat is fixedly connected on the fixed plate, the top of the supporting seat is provided with the limiting plate, the top surface of the limiting plate is fixedly connected with the table surface of the vibration table, the table top of the vibration table is fixedly supported, so that the table top falls on the supporting seat after the work is finished, in addition, the stop limiting device for the vibration table array equipment has the advantages that the structure is simple, the use is convenient, the complete space positioning of all the sub-tables of the multi-degree-of-freedom vibration table array equipment can be accurately realized during the shutdown without depending on an electric control system for adjustment, and the test piece damage caused by large deformation such as torsion, stretching, compression and the like of the test piece fixed above a plurality of table arrays is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a test piece segment fixing in the prior art;

FIG. 2 is a schematic structural diagram of a stop device of a table vibration apparatus in the prior art;

FIG. 3 is a front sectional view of the stop limiting device of the vibration table array equipment in the utility model;

FIG. 4 is a schematic structural view of a stop limiting device of the array equipment of the vibration table of the utility model;

FIG. 5 is a schematic view of the actuator mounting location;

wherein: 1. supporting the steel frame; 2. a fixing plate; 3. a supporting seat; 4. an elastic member; 5. a limiting column; 6. a limiting plate; 7. a vibration table top; 8. a notch; 9. a spherical surface; 11. a groove; 12. a protrusion; 13. a stepped bore; 14. a first bolt; 15. a first threaded hole; 16. a second threaded hole; 17. a second bolt; 18. an actuator; 19. a first through hole; 20. a second via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 3-5, the utility model provides a stop limiting device for a vibration table array device, which comprises a fixed plate 2, wherein a first through hole 19 penetrating through the center of the fixed plate 2 is formed in the center of the fixed plate 2, a supporting steel frame 1 is fixedly connected to the bottom surface of the fixed plate 2, a supporting seat 3 is fixedly connected to the top surface of the fixed plate 2, a hollow cavity is formed in the center of the supporting seat 3, a buffer mechanism is embedded in the supporting seat 3, the bottom of the buffer mechanism is abutted to the fixed plate 2, the top surface of the supporting seat 3 is in contact fit with a limiting plate 6, a notch 8 is formed in any one side of the bottom surface of the limiting plate 6, a spherical structure is arranged at the bottom of the limiting plate 6 and is matched with the top of the buffer mechanism, and a vibration table top 7 is fixedly connected to the top surface of the limiting plate 6.

By fixedly connecting the fixed plate 2 to the supporting steel frame 1 and fixedly connecting the supporting seat 3 to the fixed plate 2, a limit plate 6 is arranged on the top of the support seat 3, the top surface of the limit plate 6 is fixedly connected with a vibration table surface 7, the table top 7 of the vibration table is fixedly supported, so that the table top falls on the supporting seat 3 after the work is finished, in addition, the utility model has simple structure and convenient use, can accurately realize the complete space positioning of all the sub-tables of the multi-degree-of-freedom vibration table array equipment during the shutdown without depending on an electric control system for adjustment, and prevents the test piece fixed above a plurality of table arrays from generating large deformation such as torsion, stretching, compression and the like so as to cause the damage of the test piece.

In a further optimized scheme, the buffer mechanism comprises a limiting column 5 and an elastic piece 4;

spacing post 5 is located the cavity of supporting seat 3, 5 top surfaces of spacing post are spherical 9, spherical 9 and the 10 butt of second sphere, 3 top inboards of supporting seat are equipped with recess 11, 5 tops of spacing post are equipped with arch 12, recess 11 and protruding 12 looks adaptations, elastic component 4 is established to protruding 12 bottom cover, elastic component 4 is located the cavity of supporting

seat

3, 4 bottoms of elastic component and 2 top surface butts of fixed plate, 5 bottom sliding connection of spacing post are in first through-hole 19.

Spacing post 5 realizes the direction function with the cooperation of first through-hole 19, and elastic component 4 is the rigidity elastic component, exerts the pretightning force to elastic component 4 and forms the support to spacing post 5 to compress tightly spacing post 5 on the recess 11 of supporting seat 3, make arch 12 and recess 11 contact.

According to the further optimized scheme, the notch 8 is an arc-shaped notch, and the notch 8 is located on the outer side of the spherical structure.

When equipment shut down, the stop position is removed by the operating position to shaking table mesa 7, and limiting plate 6 also is close to spacing post 5 along 8 direction slants of breach under of breach together this moment, and breach 8 provides the guide effect for the movement of limiting plate 6, finally makes two spheres paste together, and it is spacing to accomplish the shut down of shaking table mesa 7.

According to the further optimization scheme, the top surface of the fixing plate 2 is circumferentially provided with a plurality of step holes 13 at equal intervals, the supporting steel frame 1 is provided with a plurality of first threaded holes 15 which correspond to the step holes 13 in position and are matched with the step holes, first bolts 14 penetrate through the step holes 13 and are in threaded connection with the first threaded holes 15, and the top surfaces of the first bolts 14 are located in the step holes 13.

The supporting steel frame 1 and the fixing plate 2 are fixed through the first bolts 14, and the top surfaces of the first bolts 14 are located in the step holes 13 after being screwed down, so that the attractiveness and the use of the device are not influenced.

Further optimize the scheme, 3 bottom circumference of supporting seat equally spaced is equipped with a plurality of second through-holes 20, is equipped with a plurality of second screw holes 16 that correspond with second through-hole 20 position on the fixed plate 2, wears to be equipped with second bolt 17 in second through-hole 20 and the second screw hole 16.

The support base 3 and the fixing plate 2 are fixed by a plurality of second bolts 17.

Further optimize the scheme, support 1 top surface four corners of steelframe and all the rigid coupling has fixed plate 2.

Because the size of the table top 7 of the multi-degree-of-freedom vibration table is large, multiple groups of stop limiting devices can be arranged below the table top, and the preferred 4 groups are adopted in the embodiment, so that the redundant constraint effect is realized, and the stop precision of the array equipment is easier to ensure.

According to the further optimization scheme, the side face of the vibration table top 7 is fixedly connected with a plurality of actuators 18 at equal intervals, the periphery of the bottom face of the vibration table top 7 is fixedly connected with a plurality of actuators 18, and the test piece is subjected to multi-degree-of-freedom test operation.

The working principle is as follows: when a test piece is tested on the vibration table top 7, the limiting plate 6 can be separated from the supporting seat 3 and the limiting column 5 under the action of the actuator 18, so that the limiting plate 6 moves along with the vibration table top 7, after the test is finished, the vibration table top 7 returns to a stop position from a working position under the action of the actuator 18, the limiting plate 6 moves downwards along with the limiting plate 6, but the working position of the limiting plate 6 is changed, so that the limiting plate 6 approaches the limiting column 5 obliquely downwards along the direction of the notch 8 when moving downwards, the notch 8 provides a guiding effect for the movement of the limiting plate 6, and finally the two spherical surfaces are attached together to complete the stop limiting of the vibration table top 7;

if the unexpected violent impact that receives when shaking table mesa 7 in the process of falling down, spacing post 5 can follow first through-hole 19 and descend, and elastic component 4 compresses simultaneously, plays the cushioning effect to shaking table mesa 7 to the protection test piece can not lead to damaging because of the impact, and elastic component 4 will spacing post 5 jack-up afterwards, makes arch 12 and recess 11 cooperate.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a stop device is shut down to shaking table array equipment which characterized in that: including fixed plate (2), fixed plate (2) center is equipped with first through-hole (19) that run through, fixed plate (2) bottom surface rigid coupling has support steelframe (1), the rigid coupling has supporting seat (3) on fixed plate (2) top surface, supporting seat (3) center is equipped with hollow cavity, the embedded buffer gear that is equipped with of supporting seat (3), the buffer gear bottom with fixed plate (2) butt, supporting seat (3) top surface contact cooperation has limiting plate (6), limiting plate (6) bottom surface arbitrary one side is equipped with breach (8), limiting plate (6) bottom is provided with spherical structure, spherical structure with buffer gear top adaptation, limiting plate (6) top surface rigid coupling has shaking table mesa (7).

2. The stop device for the array equipment of the vibration table according to claim 1, which is characterized in that: the buffer mechanism comprises a limiting column (5) and an elastic piece (4);

the limiting column (5) is positioned in the hollow cavity of the supporting seat (3), the top surface of the limiting column (5) is a spherical surface (9), and the spherical surface (9) is matched with the spherical structure at the bottom of the limiting plate (6);

a groove (11) is formed in the inner side of the top of the supporting seat (3), a protrusion (12) is formed in the top of the limiting column (5), the groove (11) is matched with the protrusion (12), the elastic part (4) is abutted to the bottom of the protrusion (12), the elastic part (4) is sleeved on the limiting column (5), and the bottom of the elastic part (4) is abutted to the top surface of the fixing plate (2);

the bottom of the limiting column (5) is connected in the first through hole (19) in a sliding mode.

3. The stop device for the array equipment of the vibration table according to claim 1, which is characterized in that: the notch (8) is an arc-shaped notch, and the notch (8) is positioned on the outer side of the spherical structure.

4. The stop device for the array equipment of the vibration table according to claim 1, which is characterized in that: fixed plate (2) top surface circumference is equidistant to be equipped with a plurality of step holes (13), be equipped with on support steelframe (1) a plurality of with step hole (13) position corresponds and first screw hole (15) of looks adaptation, wear to be equipped with first bolt (14) in step hole (13), first bolt (14) run through step hole (13) and with first screw hole (15) threaded connection, first bolt (14) top surface is located in step hole (13).

5. The stop device for the array equipment of the vibration table according to claim 1, which is characterized in that: the supporting seat is characterized in that a plurality of second through holes (20) are formed in the bottom of the supporting seat (3) in the circumferential direction at equal intervals, a plurality of second threaded holes (16) corresponding to the second through holes (20) in position are formed in the fixing plate (2), and second bolts (17) are arranged in the second through holes (20) and the second threaded holes (16) in a penetrating mode.

6. The stop device for the array equipment of the vibration table according to claim 3, wherein: the spherical structure is an arc surface arranged at the center of the bottom surface of the limiting plate (6).

7. The stop device for the array equipment of the vibration table as claimed in claim 2, wherein: the elastic part (4) is a rigid spring.