Vibration test device

Abstract

The utility model relates to the technical field of vibration devices, and discloses a vibration test device, which comprises a case, a vibration table in sliding connection with the inside of the case, fixed seats fixedly connected with two sides of the bottom end of the vibration table, push rods rotationally connected with the bottom ends of the two fixed seats, insertion blocks rotationally connected with the bottom ends of the two push rods, and mounting grooves formed in two sides of the two insertion blocks. First springs are fixedly connected to the inner side walls of the multiple mounting grooves, protruding blocks are fixedly connected to the other ends of the first springs, the first springs can push the protruding blocks to move in the direction of sliding out of the mounting grooves, and rotating shafts are rotationally connected to the front side and the rear side of the inner side wall of the machine box. According to the vibration table, the convex block is pressed to retract, the push rod is pulled to enable the insertion block to retreat from the interior of the insertion groove and then to be inserted into the insertion groove in the corresponding position, pressing on the convex block is canceled, the first spring pushes the convex block to penetrate through the side plate so as to fix the insertion block, and the vibration amplitude of the vibration table is changed by changing the position of the insertion block on the rotary disc.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration devices, in particular to a vibration test device. Background Art

[0002] Vibration test is a physical test method, which is mainly used to study the vibration characteristics of objects or systems, including vibration frequency, amplitude, phase difference, damping and other parameters. When conducting the test, a vibration test device is required. The vibration test device is a device used to simulate and test the performance and reliability of various structures, components or products in a vibration environment.

[0003] For example, when evaluating the uniformity, density and strength of concrete, a vibration test device is needed to vibrate the concrete. However, when placing the mold filled with concrete on the vibration device, it is often inconvenient to adjust the vibration amplitude of the vibration table on the vibration device according to the proportion of the concrete, which affects the accuracy of the test. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a vibration test device, which aims to improve the problem in the prior art that it is inconvenient to adjust the vibration amplitude of the vibration table according to the proportion of concrete when performing a vibration test on concrete.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a vibration test device, comprising:

[0006] A chassis, wherein a vibration table is slidably connected inside the chassis;

[0007] A fixed seat, fixedly connected to both sides of the bottom end of the vibration table;

[0008] A rotating shaft, rotatably connected to the inner wall of the chassis, one end of the rotating shaft being fixedly connected to a rotating disk;

[0009] A side plate, fixedly connected to one side of the turntable, with a plurality of through holes formed on the side plate;

[0010] A plurality of slots are distributed along the radial direction of the turntable;

[0011] An insert block, inserted into the slot;

[0012] A push rod, the bottom end of which is rotatably connected to one end of the plug block, and the top end of which is rotatably connected to the bottom end of the fixing seat;

[0013] The installation groove is provided on both sides of the insert block, a protrusion is slidably installed in the inner cavity of the installation groove, a spring is arranged between the protrusion and the inner wall of the installation groove, and the spring provides an outward elastic force to the protrusion;

[0014] The protrusion can be inserted into different through holes to adjust the distance between the push rod and the rotation center of the turntable.

[0015] As a further description of the above technical solution:

[0016] It also includes a plurality of limit grooves, which are respectively opened on both sides of the inner wall of the installation groove. The plurality of limit grooves are slidably connected with limit blocks inside. The opposite sides of the plurality of limit blocks are respectively fixedly connected to both sides of the protrusion, and the limit blocks are used to limit the movement of the protrusion.

[0017] As a further description of the above technical solution:

[0018] The rotating shafts are provided with two;

[0019] A motor is fixedly connected to the bottom end of one side of the chassis, a driving end of the motor is fixedly connected to one end of one of the rotating shafts, and driving gears are fixedly installed on both rotating shafts;

[0020] A rotating shaft is rotatably connected inside the chassis, and driven gears are fixedly installed at both ends of the rotating shaft. The driving gear is meshed with the driven gear to drive the driven gear to rotate.

[0021] As a further description of the above technical solution:

[0022] A plurality of clamping plates are placed on the top of the vibration table, and the clamping plates are used for clamping the mold.

[0023] As a further description of the above technical solution:

[0024] The four corners of the bottom end of the chassis are fixedly connected with push rods, and the outer sides of multiple push rods are slidably connected with fixed cylinders. The bottom walls of multiple fixed cylinders are fixedly connected with springs 2, and one ends of multiple springs 2 are fixedly connected to the bottom ends of the push rods. The push rods are used to support the chassis.

[0025] As a further description of the above technical solution:

[0026] A slide groove is provided on the inner side wall of the chassis, a slider is slidably connected inside the slide groove, and the slider is fixedly connected to two sides of the vibration platform.

[0027] The utility model has the following beneficial effects:

[0028] In the utility model, the protrusion is pressed to retract the protrusion into the installation groove, and the push rod is pulled to make the plug block withdraw from the slot. Then the plug block is inserted into the slot at the corresponding position, and the pressing on the protrusion is cancelled, so that the spring pushes the protrusion to penetrate the side plate to fix the plug block. The vibration amplitude of the vibration table is changed by changing the position of the plug block on the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional diagram of a vibration test device proposed by the utility model;

[0030] Figure 2 A three-dimensional cross-sectional view of a chassis of a vibration test device proposed by the utility model;

[0031] Figure 3 A schematic diagram of the structure of a turntable of a vibration test device proposed by the utility model;

[0032] Figure 4 A three-dimensional cross-sectional view of an insert block of a vibration test device proposed by the utility model;

[0033] Figure 5 The utility model discloses a three-dimensional cross-sectional view of a fixing cylinder of a vibration test device.

[0034] Legend:

[0035] 1. Chassis; 2. Vibration table; 3. Clamp; 4. Push rod; 5. Rotating shaft; 6. Fixed cylinder; 7. Motor; 8. Side plate; 9. Slide groove; 10. Slider; 11. Fixed seat; 12. Turntable; 13. Driving gear; 14. Rotating shaft; 15. Driven gear; 16. Bump; 17. Push rod; 18. Limiting groove; 19. Spring 1; 20. Mounting groove; 21. Limiting block; 22. Spring 2; 23. Slot; 24. Insert block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Reference Figure 1-5, an embodiment of the utility model provides: a vibration test device, including a chassis 1, a vibration table 2 is slidably connected inside the chassis 1, fixed seats 11 are fixedly connected to both sides of the bottom end of the vibration table 2, push rods 17 are rotatably connected to the bottom ends of the two fixed seats 11, plug blocks 24 are rotatably connected to the bottom ends of the two push rods 17, installation grooves 20 are opened on both sides of the two plug blocks 24, multiple installation grooves 20 are fixedly connected to the inner side walls of the springs 19, multiple springs 19 are fixedly connected to the other ends of the protrusions 16, the springs 19 can push the protrusions 16 to move in the direction of sliding out of the installation grooves 20, the front and rear sides of the inner side walls of the chassis 1 are rotatably connected to the rotating shafts 5, one end of the two rotating shafts 5 is fixedly connected to the rotating shafts 19, The two rotating shafts 5 are connected to the center of the two rotating disks 12 at one end, and the two rotating disks 12 are both circular. The front and rear ends of the opposite sides of the two rotating disks 12 are fixedly connected with the side panels 8. The two rotating disks 12 are provided with a plurality of slots 23 along the radial direction. The two plug-in blocks 24 are respectively slidably connected inside the slots 23. The two plug-in blocks 24 are respectively inserted into the slots 23 at the same positions on the two rotating disks 12. A plurality of protrusions 16 penetrate the side panels 8 at one end away from each other. The side panels 8 are provided with a plurality of vertically distributed through holes. The protrusions 16 can extend into the through holes. The four protrusions 16 can respectively extend into the through holes at the same positions of the four side panels 8. An inspection port is provided on one side of the chassis 1.

[0038] When the vibration amplitude of the vibration table 2 needs to be adjusted, both hands can be inserted into the chassis 1 through the inspection port, and then the protrusion 16 is pressed to retract the protrusion 16 into the installation groove 20, and the push rod 17 is pulled to make the plug 24 withdraw from the slot 23, and then the plug 24 is inserted into the slot 23 at the corresponding position, and the pressure on the protrusion 16 is cancelled. At this time, the spring 19 pushes the protrusion 16 to penetrate the side plate 8 (that is, the protrusion 16 extends into the through hole) to fix the plug 24, and adjust the position of the plug 24 on the turntable 12. The purpose of adjusting this position is to adjust the vibration amplitude of the vibration table 2.

[0039] The outer arc surface of one end of the protrusion 16 is away from the spring 19. When the protrusion 16 is pressed, the protrusion 16 is flush with the outer wall of the side plate 8, and the inner wall of the side plate 8 is pulled by the push rod 17 to force the protrusion 16 to retract into the installation groove 20. When the protrusion 16 is not pressed, the spring 19 will push the arc surface of the protrusion 16 to completely protrude from the side plate 8, so that the protrusion 16 can fix the plug 24.

[0040] Limiting grooves 18 are provided on both sides of the inner side walls of multiple installation grooves 20, and limiting blocks 21 are slidably connected inside the multiple limiting grooves 18. The opposite sides of the multiple limiting blocks 21 are fixedly connected to the two sides of the protrusion 16 respectively. When the spring 19 pushes the protrusion 16 to move, it will drive the limiting blocks 21 to slide inside the limiting groove 18. When the limiting blocks 21 hit the inner side walls of the limiting groove 18, the protrusion 16 can be limited, thereby preventing the spring 19 from completely pushing the protrusion 16 out of the installation groove 20.

[0041] A motor 7 is fixedly connected to the bottom end of one side of the chassis 1, and a driving end of the motor 7 passes through the side wall of the chassis 1 and is fixedly connected to one end of one of the rotating shafts 5. The ends of the two rotating shafts 5 away from the turntable 12 are fixedly connected to driving gears 13, and one end of the two rotating shafts 5 is respectively fixed at the center of the two driving gears 13. A rotating shaft 14 is rotatably connected inside the chassis 1, and both ends of the rotating shaft 14 are fixedly connected at the center of the driven gear 15. The two driven gears 15 are respectively meshed with the two driving gears 13. The starting motor 7 drives the rotating shaft 5 on one side to drive the driving gear 13 and the turntable 12 to rotate. At the same time, the rotation of the driving gear 13 on one side can drive the driven gear 15 on one side to rotate, and the rotating shaft 14 can be used to drive the driven gear 15 on the other side to rotate, and then the driven gear 15 is used to drive the driving gear 13 and the turntable 12 on the other side to rotate, and the rotation of the turntable 12 can push the push rod 17 to move up and down, thereby pushing the vibration table 2 to vibrate up and down.

[0042] The push rod 17 is pushed by two rotating turntables 12 to move, so as to enhance the driving force of the vibration table 2 to vibrate up and down. The driving gear 13 and the driven gear 15 are of the same size, and the tooth ratio is 1:1.

[0043] Four clamps 3 are placed on the top of the vibration table 2. The four clamps 3 are only placed on the top of the vibration table 2 and there is no connection between them. After the mold filled with cement is placed on the top of the vibration table 2, the four clamps 3 can be placed around the mold and close to the mold, and then the clamps 3 are fixed to the top of the vibration table 2 with bolts.

[0044] The four corners of the bottom end of the chassis 1 are fixedly connected to the top rod 4, and the outer sides of the multiple top rods 4 are slidably connected to the fixed cylinders 6. The bottom walls of the multiple fixed cylinders 6 are fixedly connected to the springs 22, and the other ends of the multiple springs 22 are fixedly connected to the bottom ends of the top rods 4. When the vibration table 2 vibrates, the springs 22 inside the fixed cylinders 6 can slow down the vibration transmission of the ground or the desktop. There is a large friction force between the fixed cylinder 6 and the side walls of the top rod 4. When the vibration table 2 is vibrated, the friction force can consume the vibration force of the top rod 4.

[0045] Slide grooves 9 are provided on both sides of the inner wall of the chassis 1, and sliders 10 are slidably connected inside the two slide grooves 9. The opposite sides of the two sliders 10 are fixedly connected to the two sides of the vibration table 2 respectively. When the push rod 17 pushes the vibration table 2 to move, it will drive the slider 10 to slide inside the slide groove 9. The slider 10 can limit the vibration table 2, thereby preventing the vibration table 2 from tilting during movement.

[0046] Working principle: After placing the mold filled with cement on the top of the vibration table 2, four clamps 3 can be placed around the mold and close to the mold, and then the clamps 3 are fixed to the top of the vibration table 2 with bolts. After the mold is fixed to the top of the vibration table 2, the motor 7 is started to make the rotating shaft 5 drive the driving gear 13 and the turntable 12 to rotate, and the driving gear 13 drives the driven gear 15 to rotate, and then the rotating shaft 14 is used to make the driven gear 15 on one side drive the driven gear 15 on the other side to rotate, and at the same time drive the driving gear 13 on the side away from the motor 7 to drive the rotating shaft 5 to rotate, so that the turntable 12 on the rotating shaft 5 rotates, and the two turntables 12 The rotation of can push the push rod 17 to move up and down, and the movement of the push rod 17 can push the vibration table 2 to vibrate up and down inside the chassis 1. When adjusting the vibration amplitude of the vibration table 2, both hands can be inserted into the chassis 1 through the inspection port, and then the protrusion 16 can be pressed to retract the protrusion 16 into the installation groove 20, and the push rod 17 can be pulled to make the plug block 24 withdraw from the slot 23, and then the plug block 24 is inserted into the slot 23 at the corresponding position, and the pressure on the protrusion 16 is cancelled. The spring 19 pushes the protrusion 16 to penetrate the side plate 8 to fix the plug block 24. By adjusting the position of the plug block 24 on the turntable 12, the amplitude of the up and down vibration of the vibration table 2 can be changed.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration test device, characterized in that: include A chassis (1), wherein a vibration table (2) is slidably connected inside the chassis (1); A fixed seat (11) fixedly connected to two sides of the bottom end of the vibration table (2); A rotating shaft (5) is rotatably connected to the inner wall of the chassis (1), and one end of the rotating shaft (5) is fixedly connected to a rotating disk (12); A side plate (8) is fixedly connected to one side of the rotating disk (12), and a plurality of through holes are formed on the side plate (8); A plurality of slots (23) distributed along the radial direction of the rotating disk (12); An insert block (24) inserted into the slot (23); A push rod (17), the bottom end of which is rotatably connected to one end of the plug block (24), and the top end of which is rotatably connected to the bottom end of the fixing seat (11); The mounting groove (20) is provided on both sides of the insert block (24), a protrusion (16) is slidably installed in the inner cavity of the mounting groove (20), a spring (19) is provided between the protrusion (16) and the inner side wall of the mounting groove (20), and the spring (19) provides an outward elastic force to the protrusion (16); The protrusion (16) can be inserted into different through holes to adjust the distance between the push rod (17) and the rotation center of the turntable (12).

2. A vibration test device according to claim 1, characterized in that: It also includes a plurality of limit grooves (18), which are respectively opened on both sides of the inner wall of the installation groove (20); the plurality of limit grooves (18) are slidably connected to limit blocks (21); opposite sides of the plurality of limit blocks (21) are respectively fixedly connected to both sides of the protrusion (16); the limit blocks (21) are used to limit the movement of the protrusion (16).

3. A vibration test device according to claim 1, characterized in that: The rotating shafts (5) are provided with two; A motor (7) is fixedly connected to the bottom end of one side of the chassis (1); a driving end of the motor (7) is fixedly connected to one end of one of the rotating shafts (5); and driving gears (13) are fixedly mounted on both rotating shafts (5); A rotating shaft (14) is rotatably connected inside the chassis (1), and driven gears (15) are fixedly mounted on both ends of the rotating shaft (14). The driving gear (13) meshes with the driven gear (15) to drive the driven gear (15) to rotate.

4. A vibration test device according to claim 1, characterized in that: A plurality of clamping plates (3) are placed on the top of the vibration table (2), and the clamping plates (3) are used to clamp the mold.

5. A vibration test device according to claim 1, characterized in that: The four corners of the bottom end of the chassis (1) are fixedly connected to push rods (4), the outer sides of the push rods (4) are slidably connected to fixed cylinders (6), the inner bottom walls of the fixed cylinders (6) are fixedly connected to springs (22), one ends of the springs (22) are fixedly connected to the bottom ends of the push rods (4), and the push rods (4) are used to support the chassis (1).

6. A vibration test device according to claim 1, characterized in that: The inner wall of the chassis (1) is provided with a slide groove (9), the interior of the slide groove (9) is slidably connected with a slider (10), and the slider (10) is fixedly connected to two sides of the vibration table (2).

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