Supporting base for vibrating table

Abstract

The invention discloses a support base for a vibrating table, which is applied to the technical field of vibrating tables, and is characterized by comprising a base and a vibrating table disc arranged right above the base, a plurality of sets of symmetrically-arranged supporting bases are fixedly connected to the base in the circumferential direction of the vibration table disc at equal intervals, and rubber supporting pads are fixedly connected between the supporting bases and the vibration table disc. The ends, away from the center position of the vibration table disc, of the symmetrical supporting seats are rotationally connected with a horizontal compensation assembly used for conducting symmetrical horizontal compensation on the edge of the vibration table disc based on a hydraulic compensation assembly, and an adjusting assembly used for controlling the horizontal compensation assembly to conduct adjustment is fixedly connected to the base. The vibration table has the technical effects that the structure is stable, and the possibility that the vibration table shakes or inclines is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration tables, and particularly to a support base for a vibration table. Background Art

[0002] Vibration tables are widely used in many industrial, scientific research and testing fields and are key equipment for simulating various vibration environments. At present, there are various types of vibration table installation support devices on the market. In the early stage, a rigid connection method was mostly adopted, directly fixing the vibration table on a solid foundation. Although this method can provide initial stable support for the vibration table, when the vibration table is working, the powerful vibration energy generated by it will be quickly transmitted to the foundation through the rigid connection. This not only easily causes fatigue damage to the foundation structure due to frequent stress, but also causes obvious vibration in the surrounding environment, interfering with the normal operation of other vibration-sensitive equipment nearby. More seriously, in the face of complex and variable vibration conditions, the rigid connection cannot conform to the dynamic deformation of the vibration table, resulting in excessive local stress concentration during the operation of the vibration table. Over time, it will damage the key structural components of the vibration table, shorten its service life, and at the same time cause large deviations in experimental data. To solve the problems of rigid connection, an elastic element support structure emerged, such as rubber pad support, etc. The rubber pad support can absorb part of the vibration energy by virtue of the good elasticity and damping characteristics of rubber, reducing vibration transmission to a certain extent. However, after long-term exposure to high-frequency and high-intensity vibrations, the rubber pad is prone to aging, and its elastic and damping properties decline significantly, making the support effect greatly reduced and difficult to continuously maintain the stable operation of the vibration table, resulting in the vibration table shaking or tilting, thus having a significant impact on the accuracy and reliability of vibration experiments and requiring improvement. Summary of the Invention

[0003] The purpose of the present invention is to provide a support base for a vibration table, and its advantage is that the structure is stable, reducing the possibility of the vibration table shaking or tilting.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: A support base for a vibration table includes a base and a vibration table disc arranged directly above the base; a number of symmetrically arranged support seats are fixedly connected to the base at equal intervals along the circumferential direction of the vibration table disc, and a rubber support pad is fixedly connected between the support seats and the vibration table disc. One end of the symmetric support seats away from the center position of the vibration table disc is rotatably connected to a horizontal compensation component for symmetrically horizontally compensating the edge of the vibration table disc based on a hydraulic compensation component, and an adjustment component for controlling the adjustment of the horizontal compensation component is fixedly connected to the base.

[0005] The present invention is further configured such that: the horizontal compensation assembly includes an inclined mounting surface formed on the support base and a rotating support plate rotatably connected to the inclined mounting surface. A fixed seat corresponding to the rotating support plate is fixedly connected to the bottom of the vibrating table disc. A regulating gear rack is fixedly connected to the side end of the rotating support plate with the rotation center of the rotating support plate as the axis. A regulating rack for driving the rotation of the regulating gear rack is slidably connected to the base. A support frame for supporting the regulating rack is fixedly connected to the base. A friction strip for preventing the regulating rack from sliding by itself is provided between the regulating rack and the support frame.

[0006] The present invention is further configured such that: the hydraulic compensation assembly includes at least one arc-shaped guide rod coaxially arranged with the regulating gear rack and fixedly connected to the rotating support plate, and an arc-shaped guide groove formed on the support base for cooperating with the arc-shaped guide rod. The arc-shaped guide grooves between a set of symmetrically arranged support bases are connected through a compensation connecting pipe. A sealing pad is fixedly connected to the end of the arc-shaped guide rod away from the rotating support plate. The arc-shaped guide groove and the compensation connecting pipe are filled with hydraulic oil.

[0007] The present invention is further configured such that: a shock-absorbing pad is fixedly connected in a fitting manner to the contact surface between the fixed seat and the rotating support plate.

[0008] The present invention is further configured such that: an adsorption magnet for adsorbing the regulating rack is fixedly connected in a fitting manner to the bottom of the support frame. A downward magnetic attraction force is applied to the regulating rack by the adsorption magnet to increase the friction between the regulating rack and the support frame.

[0009] The present invention is further configured such that: at least 6 groups of the support bases are provided on the base along the circumferential direction.

[0010] The present invention is further configured such that: the regulating assembly includes a rotating seat rotatably connected to the base based on a rotating assembly. At least 2 lifting seats sliding in the vertical direction are evenly arranged on the rotating seat along the circumferential direction. A telescopic electric cylinder is fixedly connected to the lifting seat along the horizontal direction. Protruding blocks are fixedly connected to both ends of the bottom of the regulating rack. A contact block for abutting against the protruding blocks to push the regulating rack to slide is fixedly connected to the telescopic end of the telescopic electric cylinder. A guiding and lifting assembly for pushing the lifting seat to lift is fixedly connected to the rotating seat along the vertical direction.

[0011] The present invention is further configured such that: the rotating assembly includes a first rotating gear coaxially and fixedly connected to the bottom of the rotating seat and a rotating drive motor fixedly connected to the base. A second rotating gear cooperating with the first rotating gear is fixedly connected to the rotating shaft of the rotating drive motor.

[0012] The present invention is further configured that: the guiding and lifting assembly includes a plurality of guiding rods fixedly connected to the lifting seat along the vertical direction and a guiding sleeve fixedly connected to the rotating seat for cooperating with the guiding rods, and a lifting electric cylinder is fixedly connected to the rotating seat along the vertical direction for driving the lifting seat to lift and lower.

[0013] The present invention is further configured that: a plurality of laser rangefinders for measuring the distance between the vibrating table disc and the base are fixedly connected to the base at equal intervals along the circumferential direction.

[0014] In summary, the present invention has the following beneficial effects: 1. A plurality of groups of symmetrically arranged support seats are evenly spaced along the circumferential direction of the vibrating table disc on the base, and a rotating horizontal compensation assembly is arranged on the symmetric support seats based on a hydraulic compensation assembly. An adjustment assembly for controlling the adjustment of the horizontal compensation assembly is arranged on the base. While the horizontal compensation assembly supplements the support of the fixed seat through the rotating support plate, by arranging an adjustment gear rack at the side end of the rotating support plate and slidably connecting an adjustment rack on the base, the adjustment rack is used to adjust the rotating support plates on the support platforms symmetrically arranged on both sides of the vibrating table disc. When the vibrating table disc tilts to one side, the adjustment rack slides towards the tilted side, thereby driving the rotating support plate on the tilted side to rotate upwards to jack up the vibrating table disc, and at the same time, the rotating support plates on the same group of symmetric support platforms are linked to rotate downwards, so that the tilted side of the vibrating table disc synchronously descends, thereby making the tilted vibrating table disc return to the horizontal state. When the rotating support plate rotates, the arc-shaped guiding rod of the hydraulic compensation assembly synchronously slides in the arc-shaped guiding groove. By arranging the arc-shaped guiding grooves in a group of symmetric support seats to be connected through a compensation connecting pipe and filling the arc-shaped guiding groove and the compensation connecting pipe with hydraulic oil, on the one hand, the hydraulic oil can balance the rotation angle of the rotating support plates on the same group of support seats, thereby improving the accuracy of the horizontal adjustment of the vibrating table disc. On the other hand, the hydraulic oil can support the rotating support plate and reduce the influence of the vibration of the vibrating table disc, ensuring the stability of the vibrating table disc; 2. By providing a support frame for supporting the adjustment rack on the base and arranging a friction strip between the adjustment rack and the support frame, and at the same time, the adjustment assembly is configured by arranging a lifting seat on the rotating seat and an extension electric cylinder on the lifting seat. The extension electric cylinder drives the abutting block to abut against the convex block, thereby pushing the adjustment rack to slide on the support frame. When the adjustment is completed, the abutting block disengages from the convex block. At this time, due to the frictional force of the friction strip, the adjustment rack is prevented from sliding on the support frame, thus ensuring the stability of the vibration table disk. By providing an adsorption magnet for adsorbing the adjustment rack at the bottom of the support frame, a downward magnetic suction force is applied to the adjustment rack by the adsorption magnet to increase the frictional force between the adjustment rack and the support frame, further reducing the possibility of the adjustment rack sliding by itself. The adjustment assembly realizes the adjustment of multiple groups of horizontal compensation components simultaneously by arranging a plurality of lifting seats and extension electric cylinders along the circumferential direction on the rotating seat, improving the efficiency of horizontal adjustment of the vibration table disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of this embodiment; Figure 2 is Figure 1 an enlarged schematic view of part A of Figure 3 is a schematic structural diagram of the support frame of this embodiment; Figure 4 is a cross-sectional structural diagram of the whole of this embodiment; Figure 5 is Figure 4 an enlarged schematic view of part B of Figure 6 is Figure 4 an enlarged schematic view of part C of

[0016] Reference numerals: 1, base; 2, vibration table disk; 3, support seat; 4, rubber support pad; 5, hydraulic compensation component; 51, arc guide rod; 52, arc guide groove; 53, compensation connecting pipe; 54, gasket; 6, horizontal compensation component; 61, inclined mounting surface; 62, rotating support plate; 63, fixed seat; 64, adjustment gear rack; 65, adjustment rack; 66, support frame; 67, friction strip; 68, shock pad; 69, adsorption magnet; 7, adjustment component; 71, rotating component; 711, first rotating gear; 712, rotating drive motor; 713, second rotating gear; 72, rotating seat; 73, lifting seat; 74, extension electric cylinder; 75, convex block; 76, abutting block; 77, guiding and lifting component; 771, guide rod; 772, guide sleeve; 773, lifting electric cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Embodiment: Reference Figures 1 to 6 , a support base for a vibrating table, comprising a base 1 and a vibrating table disc 2 disposed directly above the base 1. A number of groups of symmetrically arranged support seats 3 are fixedly connected to the base 1 at equal intervals along the circumferential direction of the vibrating table disc 2. The support seats 3 are symmetrically distributed with respect to the central axis plane of the vibrating table disc 2. A rubber support pad 4 is fixedly connected between the support seats 3 and the vibrating table disc 2. The rubber support pad 4 realizes flexible support for the vibrating table disc 2. At one end of the symmetrically arranged support seats 3 away from the center position of the vibrating table disc 2, a horizontal compensation assembly 6 for symmetrically horizontally compensating the edge of the vibrating table disc 2 is rotatably connected based on a hydraulic compensation assembly 5. An adjustment assembly 7 for controlling the adjustment of the horizontal compensation assembly 6 is fixedly connected to the base 1. A number of laser rangefinders for measuring the distance between the vibrating table disc 2 and the base 1 are fixedly connected to the base 1 at equal intervals along the circumferential direction. The laser rangefinders measure the state of the vibrating table disc 2 in real time and summarize it, thereby judging the inclination state of the vibrating table disc 2 and controlling the adjustment assembly 7 to adjust the horizontal compensation assembly 6. In this embodiment, at least 6 groups of support seats 3 are provided on the base 1 along the circumferential direction.

[0019] Reference Figures 2 to 5, specifically, the horizontal compensation component 6 includes an inclined mounting surface 61 formed on the support base 3 and a rotating support plate 62 rotatably connected to the inclined mounting surface 61. A fixed base 63 corresponding to the rotating support plate 62 is fixedly connected to the bottom of the vibrating table disc 2. A shock-absorbing pad 68 is fixedly connected to the contact surface between the fixed base 63 and the rotating support plate 62. The vibration transmitted to the rotating support plate 62 is reduced through the shock-absorbing pad 68, thereby improving the stability of the vibrating table disc 2. A regulating gear rack 64 is fixedly connected to the side end of the rotating support plate 62 with the rotation center of the rotating support plate 62 as the axis. A regulating rack 65 for driving the rotation of the regulating gear rack 64 is slidably connected to the base 1. When the vibrating table disc 2 tilts to one side, the regulating rack 65 slides towards the tilted side, thereby driving the rotating support plate 62 on the tilted side to rotate upward to jack up the vibrating table disc 2. At the same time, the rotating support plates 62 on the symmetrically arranged support platforms of the same group are linked to rotate downward, so that the tilted vibrating table disc 2 on the raised side synchronously descends, thereby bringing the tilted vibrating table disc 2 back to the horizontal state. A support frame 66 for supporting the regulating rack 65 is fixedly connected to the base 1. A friction strip 67 for preventing the regulating rack 65 from sliding by itself is provided between the regulating rack 65 and the support frame 66. An adsorption magnet 69 for adsorbing the regulating rack 65 is fixedly connected to the bottom of the support frame 66. Based on the downward magnetic attraction force exerted by the adsorption magnet 69 on the regulating rack 65, the friction force between the regulating rack 65 and the support frame 66 is increased. By providing an adsorption magnet 69 for adsorbing the regulating rack 65 at the bottom of the support frame 66, the downward magnetic attraction force is exerted on the regulating rack 65 by the adsorption magnet 69 to increase the friction force between the regulating rack 65 and the support frame 66, further reducing the possibility of the regulating rack 65 sliding by itself. The hydraulic compensation component 5 includes at least one arc-shaped guide rod 51 coaxially arranged with the regulating gear rack 64 and fixedly connected to the rotating support plate 62, and an arc-shaped guide groove 52 formed on the support base 3 for cooperating with the arc-shaped guide rod 51. The arc-shaped guide grooves 52 between a pair of symmetrically arranged support bases 3 are connected through a compensation connecting pipe 53. A sealing pad 54 is fixedly connected to the end of the arc-shaped guide rod 51 far from the rotating support plate. The arc-shaped guide groove 52 and the compensation connecting pipe 53 are filled with hydraulic oil. The compensation connecting pipe is arranged in the base for easy layout. When the rotating support plate 62 rotates, the arc-shaped guide rod 51 of the hydraulic compensation component 5 slides synchronously in the arc-shaped guide groove 52. By setting the arc-shaped guide grooves 52 between a pair of symmetrically arranged support bases 3 to be connected through the compensation connecting pipe 53 and filling the arc-shaped guide groove 52 and the compensation connecting pipe 53 with hydraulic oil, on the one hand, the hydraulic oil can balance the rotation angles of the rotating support plates 62 on the support bases 3 of the same group, thereby improving the accuracy of the horizontal adjustment of the vibrating table disc 2. On the other hand, the hydraulic oil can support the rotating support plate 62 and reduce the influence of the vibration of the vibrating table disc 2, ensuring the stability of the vibrating table disc 2.

[0020] Reference Figure 4 and Figure 6 Specifically, the adjusting assembly 7 includes a rotating seat 72 rotatably connected to the base 1 based on the rotating assembly 71. At least two lifting seats 73 sliding vertically are evenly arranged on the rotating seat 72 in the circumferential direction. A telescopic electric cylinder 74 is fixedly connected to the lifting seat 73 in the horizontal direction. Two protruding ends at the bottom of the adjusting rack 65 are fixedly connected with bumps 75. The telescopic end of the telescopic electric cylinder 74 is fixedly connected with an abutting block 76 for abutting against the bump 75 to push the adjusting rack 65 to slide. A guiding and lifting assembly 77 for pushing the lifting seat 73 to lift is fixedly connected to the rotating seat 72 in the vertical direction. The telescopic electric cylinder 74 drives the abutting block 76 to abut against the bump 75 to push the adjusting rack 65 to slide on the support frame 66. When the adjustment is completed, the abutting block 76 disengages from the bump 75. At this time, due to the friction of the friction strip, the adjusting rack 65 is prevented from sliding on the support frame 66, thus ensuring the stability of the vibrating table disc 2. The rotating assembly 71 includes a first rotating gear 711 coaxially and fixedly connected to the bottom of the rotating seat 72 and a rotating drive motor 712 fixedly connected to the base 1. A second rotating gear 713 engaged with the first rotating gear 711 is fixedly connected to the rotating shaft of the rotating drive motor 712. The tooth number ratio of the first rotating gear 711 to the second rotating gear 713 is not less than 2:1 to improve the rotation accuracy of the rotating seat 72. The guiding and lifting assembly 77 includes a plurality of guide rods 771 fixedly connected to the lifting seat 73 in the vertical direction and a guide sleeve 772 fixedly connected to the rotating seat 72 for cooperating with the guide rods 771. A lifting electric cylinder 773 for driving the lifting seat 73 to lift is fixedly connected to the rotating seat 72 in the vertical direction.

[0021] Brief description of the usage process: When the vibrating table disc 2 tilts to one side, the telescopic electric cylinder 74 drives the abutting block 76 to abut against the bump 75 to push the adjusting rack 65 to slide on the support frame 66 towards the tilted side, thereby driving the rotating support plate 62 on the tilted side to rotate upward to jack up the vibrating table disc 2. At the same time, the rotating support plates 62 on the symmetric support platforms in the same group are linked to rotate downward, so that the vibrating table disc 2 on the tilted side synchronously descends, so that the tilted vibrating table disc 2 returns to the horizontal state.

[0022] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make creative contributions to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A support base for a vibration table, comprising a base (1) and a vibration table disc (2) disposed directly above the base (1); characterized in that, A number of groups of symmetrically arranged support seats (3) are fixedly connected to the base (1) at equal intervals along the circumferential direction of the vibration table disc (2). A rubber support pad (4) is fixedly connected between the support seat (3) and the vibration table disc (2). One end of the symmetrically arranged support seat (3) away from the center position of the vibration table disc (2) is rotatably connected to a horizontal compensation component (6) for symmetrically horizontally compensating the edge of the vibration table disc (2) based on a hydraulic compensation component (5). An adjustment component (7) for controlling the adjustment of the horizontal compensation component (6) is fixedly connected to the base (1).

2. The support base for a vibration table according to claim 1, characterized in that, The horizontal compensation component (6) includes an inclined mounting surface (61) formed on the support seat (3) and a rotating support plate (62) rotatably connected to the inclined mounting surface (61). A fixed seat (63) corresponding to the rotating support plate (62) is fixedly connected to the bottom of the vibration table disc (2). An adjustment gear rack (64) is fixedly connected to the side end of the rotating support plate (62) with the rotation center of the rotating support plate (62) as the axis. An adjustment rack (65) for driving the adjustment gear rack (64) to rotate is slidably connected to the base (1). A support frame (66) for supporting the adjustment rack (65) is fixedly connected to the base (1). A friction strip (67) for preventing the adjustment rack (65) from sliding by itself is provided between the adjustment rack (65) and the support frame (66).

3. The support base for a vibrating table according to claim 2, characterized in that, The hydraulic compensation component (5) includes at least one arc-shaped guide rod (51) coaxially arranged with the adjustment gear rack (64) and fixedly connected to the rotating support plate (62), and an arc-shaped guide groove (52) formed on the support seat (3) for cooperating with the arc-shaped guide rod (51). The arc-shaped guide grooves (52) between a set of symmetrically arranged support seats (3) are connected through a compensation connecting pipe (53). A sealing pad (54) is fixedly connected to the end of the arc-shaped guide rod (51) away from the rotating support plate (62). The arc-shaped guide groove (52) and the compensation connecting pipe (53) are filled with hydraulic oil.

4. The support base for a vibration table according to claim 2, characterized in that, A shock pad (68) is fixedly connected to the contact surface between the fixed seat (63) and the rotating support plate (62).

5. The support base for a vibrating table according to claim 2, characterized in that, An adsorption magnet (69) for adsorbing the adjustment rack (65) is fixedly connected to the bottom of the support frame (66). A downward magnetic attraction force is applied to the adjustment rack (65) by the adsorption magnet (69) to increase the friction between the adjustment rack (65) and the support frame (66).

6. The support base for a vibration table according to claim 1, characterized in that At least 6 groups of the support seats (3) are provided on the base (1) along the circumferential direction.

7. The support base for a vibration table according to claim 2, characterized in that, The adjustment assembly (7) includes a rotating seat (72) rotatably connected to the base (1) based on a rotating component (71). At least two lifting seats (73) that slide vertically are evenly arranged on the rotating seat (72) along the circumferential direction. A telescopic electric cylinder (74) is fixedly connected to the lifting seat (73) along the horizontal direction. At both ends of the bottom of the adjustment rack (65), convex blocks (75) are protrudingly fixedly connected. The telescopic end of the telescopic electric cylinder (74) is fixedly connected with an abutting block (76) for abutting against the convex block (75) to push the adjustment rack (65) to slide. A guiding and lifting assembly (77) for pushing the lifting seat (73) to lift is fixedly connected to the rotating seat (72) along the vertical direction.

8. A support base for a shaking table according to claim 7, characterized in that, The rotating component (71) includes a first rotating gear (711) coaxially and fixedly connected to the bottom of the rotating seat (72) and a rotating drive motor (712) fixedly connected to the base (1). A second rotating gear (713) that cooperates with the first rotating gear (711) is fixedly connected to the rotating shaft of the rotating drive motor (712).

9. The support base for a shaking table according to claim 7, characterized in that, The guiding and lifting assembly (77) includes a plurality of guiding rods (771) fixedly connected to the lifting seat (73) along the vertical direction and a guiding sleeve (772) fixedly connected to the rotating seat (72) for cooperating with the guiding rod (771). A lifting electric cylinder (773) for driving the lifting seat (73) to lift is fixedly connected to the rotating seat (72) along the vertical direction.

10. The support base for a vibration table according to claim 1, characterized in that, A plurality of laser rangefinders for measuring the distance between the vibration table disc (2) and the base (1) are evenly and spacedly fixedly connected to the base (1) along the circumferential direction.

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