CN210221440U

CN210221440U - Low-profile vibrating table suitable for standard factory building

Info

Publication number: CN210221440U
Application number: CN201921123092.7U
Authority: CN
Inventors: Tengbo Ye; 叶腾波; Aijun Cai; 蔡爱军
Original assignee: Suzhou Branch Testing Equipment Ltd Co Projects
Current assignee: Suzhou Branch Testing Equipment Ltd Co Projects
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-03-31
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a low-profile vibrating table suitable for standard factory buildings, which comprises a frame, a main body for exciting vibration and a table top for fixing a test piece, wherein a guide shaft is arranged in the main body; the main body is contacted with the ground through a plurality of rollers, and a plurality of first air bags are arranged between the rack and the main body so as to reduce the vibration of the main body; the rack is also connected with the main body through a plurality of second air bags, and the second air bags can regulate the distance between the rack and the ground through charging and discharging; the main body is provided with a plurality of limiting assemblies, each limiting assembly comprises a base, a limiting piece, a pushing plate and a butt plate, and the bases and the upper surface of the vibration main body are fixed; the pushing plate is fixed with the base, and the butt plate is fixed with the side wall of the table top; support the push pedal and correspond the setting with the butt-joint plate, the locating part is located and supports between push pedal and the butt-joint plate, and a plurality of recesses have been seted up to the lateral wall of locating part, supports and is provided with the lug in the push pedal, is provided with a plurality of beads on the butt-joint plate, and lug and whole bead homoenergetic can inlay and establish in the recess.

Description

Low-profile vibrating table suitable for standard factory building

Technical Field

The utility model relates to a shaking table equipment field, concretely relates to low profile shaking table that is suitable for standard factory building.

Background

In the fields of electronics, aviation, automobiles and the like, along with higher requirements on product precision and quality, the requirement on vibration precision is higher and higher, and in order to detect the capability of the device for bearing environmental vibration in the process of assembly, transportation or action execution, the vibration test is utilized to detect the anti-seismic performance.

However, in the prior art, as the degree of factory standardization has been increasing, standardized factories have been becoming popular in order to increase the utilization rate of land resources. In order to ensure the diversity of the test objects of the vibration table, the height of the vibration table needs to be further reduced. However, when the height of the vibration table is reduced, the vibration table cannot rotate through the rotating shaft, so that the vibration isolation performance of the vibration table is reduced in the vibration test process, and the vibration table resonates. Therefore, in the process of testing the vibration table, the vibration table needs to be damped and limited through an external vibration damping air bag, so that the accuracy of a test result is improved.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a low profile shaking table that is suitable for standard factory building, its accuracy that can keep shaking table test result.

In order to solve the technical problem, the utility model provides a low-profile vibrating table suitable for a standard factory building, which comprises a frame, a main body for exciting vibration and a table top for fixing a test piece, wherein a guide shaft is arranged in the main body to limit the motion direction of the table top; the main body is contacted with the ground through a plurality of rollers, and a plurality of first air bags are arranged between the rack and the main body so as to reduce the vibration of the main body; the rack is also connected with the main body through a plurality of second air bags, and the second air bags can adjust the distance between the rack and the ground through inflation and deflation; the main body is provided with a plurality of limiting assemblies for limiting the table top, each limiting assembly comprises a base, a limiting piece, a pushing plate and a butt plate, and the base and the upper surface of the vibration main body are fixed; the abutting plate is fixed with the base, and the abutting plate is fixed with the side wall of the table top; the butt plate is provided with a plurality of protruding blocks, the butt plate is provided with a plurality of convex edges, and the protruding blocks and all the convex edges can be embedded in the grooves; when the table top moves, the limiting piece can roll between the abutting plate and the abutting plate so as to limit the moving direction of the table top.

Furthermore, a plurality of third air bags are arranged on the upper surface of the main body, and all the third air bags are in contact with the table top so as to support the table top; all the third air bags are communicated through the same pipeline so as to reduce the shift of the center of gravity of the table board.

Furthermore, the upper surface of frame is provided with a plurality of fixed frames, the outer wall of main part is provided with a plurality of butt seats, just the both ends of first gasbag respectively with fixed frame with the butt seat is connected.

Furthermore, a plurality of guide pillars are arranged in the fixed frame along the vertical direction, and the abutting seat is provided with insertion holes for the guide pillars to penetrate through.

Furthermore, all the second air bags are communicated through the same air conveying pipe.

Furthermore, a plurality of supporting plates are arranged on the lower surface of the table top and are uniformly distributed; and the adjacent two support plates form an accommodating space for placing the third air bag.

Furthermore, the lower surface of the table board is provided with a surrounding edge, and the surrounding edge can surround the upper end of all the third air bags.

Further, the locating part is cylindrical, just the through-hole has been seted up along its axial to the locating part.

Furthermore, the limiting member is made of an elastic material.

Further, the ground is provided with a guide rail matched with the roller to limit the moving direction of the vibration table.

The utility model has the advantages that:

the frame is placed on the ground in the process of fatigue testing of the test piece, so that the vibration of the main body can be reduced to improve the precision in testing; when the position of the vibration table needs to be moved, the air pressure in the second air bag is reduced through the deflation of the second air bag, meanwhile, the second air bag can apply upward pulling force to the rack, so that the rack moves upward under the action of the pulling force and is separated from the ground, and then the movement of the vibration table is realized by utilizing the rollers; after the second air bag is moved to a specific position, the second air bag is inflated, so that the thrust of the second air bag on the machine frame is gradually increased until the machine frame is contacted with the ground;

the position deviation of the table top in the movement process can be reduced by utilizing the pushing force applied to the table top by the limiting assembly, so that the movement position of the table top is more accurate; meanwhile, the deflection moment generated on the guide shaft when the center of gravity of the table top and the test piece shifts is reduced, so that the service life of the guide shaft can be prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

fig. 4 is a side view of the present invention;

fig. 5 is a cross-sectional view of the present invention.

The reference numbers in the figures illustrate: 1. a frame; 11. a fixed frame; 12. a guide post; 2. a main body; 21. a guide shaft; 22. a butting seat; 221. an insertion hole; 23. a roller; 231. a guide rail; 3. a table top; 31. a support plate; 32. surrounding edges; 4. a first air bag; 5. a second air bag; 6. a third air cell; 71. a base; 72. pushing the plate; 721. a bump; 73. a butt plate; 731. a rib; 74. a limiting member; 741. and (4) a groove.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1, the embodiment of the low-profile vibration table suitable for the standard factory building of the present invention includes a frame 1, a main body 2 and a table top 3, wherein the main body 2 is used for providing an exciting force, and the table top 3 is disposed on the main body 2 and can perform a fatigue test under the action of the exciting force. The main part 2 sets up in the top of frame 1, stability when guaranteeing the main part 2 vibration through frame 1 to precision when improving the test.

Referring to fig. 1 and 5, a guide shaft 21 and a guide wheel are provided inside the main body 2, and the guide shaft 21 can limit the moving direction of the table top 3 and transmit an exciting force. The guide wheel is in contact with the outer side wall of the guide shaft 21 so that the direction of movement of the guide shaft 21 can be restricted by the guide wheel. Meanwhile, in order to meet the requirements of a standardized factory building to reduce the height and the size of the vibration table, the central air bag can be omitted below the guide shaft 21.

Referring to fig. 1-3, the main body 2 is connected to the frame 1 through a plurality of first air bags 4, the upper surface of the frame 1 is correspondingly provided with a fixed frame 11, meanwhile, the outer side wall of the main body 2 is fixedly provided with a butt seat 22, two end portions of the first air bags 4 are respectively connected with the fixed frame 11 and the butt seat 22, and a plurality of rollers 23 for moving are arranged below the main body 2, so that the height of the frame 1 from the ground can be adjusted by utilizing the inflation and deflation of the first air bags 4. The frame 1 is placed on the ground in the process of fatigue testing of the test piece, so that the vibration of the main body 2 can be reduced to improve the precision in testing; when the position of the vibration table needs to be moved, the air pressure in the first air bag 4 is increased by inflating the first air bag 4, meanwhile, the first air bag 4 applies upward thrust to the fixed frame 11, so that the rack 1 moves upward under the action of the thrust and is separated from the ground, and then the roller 23 is used for realizing the movement of the vibration table. After moving to a specific position, part of the gas in the first gas bag 4 is discharged, so that the supporting force of the first gas bag 4 on the fixed frame 11 is gradually reduced until the rack 1 is in contact with the ground.

Referring to fig. 1, in order to make the air pressures in the plural sets of first air bags 4 substantially the same, all the first air bags 4 in the present embodiment are communicated through the same air delivery pipe. Maintaining the balance of the air pressure in the first air bag 4 can ensure that the effect exerted by the first air bag 4 on the rack 1 is substantially the same, so that the rack 1 is in the same plane, and the stability of the rack 1 when in contact with the ground is increased.

Referring to fig. 1-4, a plurality of guide posts 12 are vertically disposed inside the fixed frame 11, and an insertion hole 221 for the guide posts 12 to penetrate is formed on the abutting seat 22, so that the movement direction of the frame 1 can be limited by the cooperation of the guide posts 12 and the insertion hole 221. In addition, in order to maintain the accuracy of the position of the vibration table when moving, a guide rail 231 engaged with the roller 23 is provided on the ground so that the vibration table can move in the laying direction of the guide rail 231.

Referring to fig. 1 to 4, the frame 1 is further connected to the main body 2 by a plurality of second air bags 5 to absorb vibration of the main body 2 during a test using the second air bags 5. In order to make the stress of the main body 2 uniform, the second airbags 5 are respectively located at corners of the frame 1. Meanwhile, the second air bag 5 arranged between the main body 2 and the rack 1 can also adjust the height of the rack 1 from the ground, when the position of the vibration table needs to be moved, the air pressure in the second air bag 5 is reduced through the deflation of the second air bag 5, meanwhile, the second air bag 5 can apply upward pulling force to the rack 1, so that the rack 1 moves upward under the action of the pulling force and is separated from the ground, and then the movement of the vibration table is realized by utilizing the roller 23; after moving to a specific position, the second air bag 5 is inflated, so that the thrust of the second air bag 5 on the stander 1 is gradually increased until the stander 1 is in contact with the ground. In order to make the air pressure in the plurality of sets of second air bags 5 substantially the same, all the second air bags 5 are communicated through the same air pipe in the embodiment.

Referring to fig. 1 and 4, in order to improve the stability of the frame 1 during adjustment, the first air bag 4 and the second air bag 5 can be used for adjustment, when the position of the vibration table needs to be moved, the second air bag 5 is deflated and the first air bag 4 is inflated, so that the frame 1 moves upwards and is separated from the ground by the pulling force applied by the first air bag 4 and the pushing force applied to the fixed frame 11 by the second air bag 5. When the vibration table is moved to a desired position, the first air bag 4 is deflated and the second air bag 5 is inflated, so that the frame 1 is lowered until it contacts the ground.

Referring to fig. 1 and 2, the upper surface of the main body 2 is further provided with a plurality of third air cells 6, and all of the third air cells 6 are disposed on the upper surface of the main body 2 and can be in contact with the lower surface of the table top 3 to support the table top 3. All the third air bags 6 are communicated through the same pipeline, so that the pressure inside each third air bag 6 is approximately the same, and the upper end parts of the third air bags 6 are ensured to be approximately positioned in the same plane. The upward supporting force applied to the table top 3 by the third air bag 6 disposed below the table top 3 can be reduced, so that the pressure applied to the guide shaft 21 by the table top 3 can be reduced. In the process of carrying out fatigue test to the test piece, when the focus of mesa 3 takes place the skew, the gravity of mesa 3 and test piece is exerted on third gasbag 6 to can reduce the effort that guiding axle 21 received, moment of flexure when can reducing guiding axle 21 motion, thereby prolong guiding axle 21's life, also can reduce the requirement to guiding axle 21 precision, reduced the processing degree of difficulty.

Referring to fig. 1 and 2, a plurality of support plates 31 are fixedly disposed on the lower surface of the table top 3, and the support plates 31 can be inserted into the vibration main body 2 to transmit an exciting force. All the support plates 31 are uniformly arranged around the axis of the vibration main body 2, and two adjacent support plates 31 form a containing space capable of containing the third air bag 6. Before the test, the number of the third air bags 6 is selected according to the mass of the test piece, the third air bags 6 are respectively fixed in the containing space, and meanwhile, all the third air bags 6 are uniformly distributed about the central axis of the vibration main body 2 in order to keep the stress of the table board 3 uniform.

Referring to fig. 1 and 2, the lower surface of the table top 3 is provided with a peripheral edge 32, the peripheral edge 32 can be disposed around the entire third airbag, and the peripheral edge 32 can restrict the upper end portion of the third airbag 6, thereby restricting the shift of the position of the third airbag 6 during the test to increase the stability during the test. Meanwhile, the upper surface of the third air bag 6 is provided with a protection pad, and the protection pad can avoid the direct contact between the third air bag 6 and the table top 3, so that the third air bag 6 is protected to a certain extent. The material of the protective pad in this embodiment is preferably rubber.

Referring to fig. 1 and 3, the limiting assembly includes a base 71, a limiting member 74, a pushing plate 72 and a butt plate 73, the base 71 is fixedly connected to the upper surface of the vibration main body 2 through a fastening bolt, and the pushing plate 72 is fixedly connected to the base 71. The abutting plate 73 is fixedly connected with the outer side wall of the table top 3, and the position of the abutting plate corresponds to the position of the abutting plate 73. The limiting member 74 is located between the pushing plate 72 and the abutting plate 73, and when the table top 3 moves during the test, the limiting member 74 can roll between the pushing plate 72 and the abutting plate 73. In order to make the thrust applied to the table top 3 by the position limiting members 74 more uniform, the position limiting members in this embodiment are uniformly distributed about the central axis of the vibration main body 2.

Referring to fig. 1 and 3, in order to increase the contact between the stopper 74 and the pushing plate 72 and the abutting plate 73, the stopper 74 is cylindrically disposed. Meanwhile, the limiting piece 74 is made of elastic material, so that the stability of the table top 3 in movement is guaranteed, and the damage to the abutting push plate 72 and the abutting plate 73 is reduced. Meanwhile, the limiting member 74 is provided with a through hole along the axial direction thereof, so that the elasticity of the limiting member 74 can be further increased.

Referring to fig. 1 and 3, the outer sidewall of the limiting member 74 has a plurality of grooves 741 around the axis thereof, the upper end of the pushing plate 72 is integrally formed with a protrusion 721, and the abutting plate 73 has a plurality of protrusions 731, and the protrusion 721 and all the protrusions 731 can be embedded into the grooves 741, so as to increase the stability of the limiting member 74 during movement and prevent the limiting member 74 from being separated from the pushing plate 72 and the abutting plate 73. In addition, the two sides of the pushing plate 72 are symmetrically provided with baffle plates, and both the baffle plates can contact with the two sides of the limiting member 74, so that the stability of the limiting member 74 during movement is further improved.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A low-profile vibrating table applicable to a standard factory building is characterized by comprising a frame, a main body for exciting vibration and a table top for fixing a test piece, wherein a guide shaft is arranged in the main body to limit the motion direction of the table top; the main body is contacted with the ground through a plurality of rollers, and a plurality of first air bags are arranged between the rack and the main body so as to reduce the vibration of the main body; the rack is also connected with the main body through a plurality of second air bags, and the second air bags can adjust the distance between the rack and the ground through inflation and deflation; the main body is provided with a plurality of limiting assemblies for limiting the table top, each limiting assembly comprises a base, a limiting piece, a pushing plate and a butt plate, and the base and the upper surface of the vibration main body are fixed; the abutting plate is fixed with the base, and the abutting plate is fixed with the side wall of the table top; the butt plate is provided with a plurality of protruding blocks, the butt plate is provided with a plurality of convex edges, and the protruding blocks and all the convex edges can be embedded in the grooves; when the table top moves, the limiting piece can roll between the abutting plate and the abutting plate so as to limit the moving direction of the table top.

2. The low-profile vibrating table for a standard factory building of claim 1, wherein a plurality of third air cells are disposed on the upper surface of said main body, and all of said third air cells are in contact with said floor to support said floor; all the third air bags are communicated through the same pipeline so as to reduce the shift of the center of gravity of the table board.

3. The low-profile vibrating table applicable to standard plants as claimed in claim 1, wherein the upper surface of the frame is provided with a plurality of fixed frames, the outer wall of the main body is provided with a plurality of abutting seats, and two end portions of the first air bag are respectively connected with the fixed frames and the abutting seats.

4. The low-profile vibrating table suitable for standard factory buildings according to claim 3, wherein a plurality of guide posts are vertically arranged in the fixed frame, and the abutting base is provided with insertion holes for the guide posts to penetrate through.

5. The low-profile vibrating table applicable to standard plants as claimed in claim 3, wherein all the second air bags are communicated through the same air pipe.

6. The low-profile vibrating table applicable to the standard factory building according to claim 2, wherein a plurality of supporting plates are arranged on the lower surface of the table top, and the supporting plates are uniformly distributed; and the adjacent two support plates form an accommodating space for placing the third air bag.

7. The low-profile vibratory table for a standard factory building of claim 2, wherein a lower surface of said table top is provided with a skirt, said skirt being positionable around an upper end of all of said third air cells.

8. The low-profile vibrating table suitable for standard plants of claim 1, wherein the position-limiting member is disposed in a cylindrical shape, and the position-limiting member has a through hole along an axial direction thereof.

9. The low-profile vibrating table for a standard factory building of claim 1, wherein said stop member is made of an elastic material.

10. The low-profile vibration table for a standard factory building according to claim 1, wherein said floor is provided with a guide rail engaged with said roller to limit the moving direction of said vibration table.