CN211246330U - Vibrating instrument for physics experiments - Google Patents

Abstract

The utility model relates to the field of experimental tools, in particular to a vibrating instrument for physical experiments, which comprises a base, a chassis base, a vibrating disk, a fixed disk, two collecting boxes, a controller, a transverse vibrating component, a longitudinal vibrating component, four supporting rods and four avoiding columns, wherein the base is of a square structure and is fixedly arranged at the bottom end of the chassis base through the four avoiding columns, the transverse vibrating component comprises a supporting round platform, a first motor and a cam, the supporting round platform is fixedly arranged at the top of the fixed disk, the first motor is arranged at the top of the supporting round platform in an inverted state, the cam is arranged at the bottom of the supporting round platform, the longitudinal vibrating component comprises a main gear, a driven gear, a second motor, a sliding table, a toothed plate, two telescopic plates and four reset springs, the utility model can screen different types of articles by starting the first motor and the second motor, the method is simple to operate, direct and objective, saves labor and improves the screening efficiency.

Description

Vibrating instrument for physics experiments

Technical Field

The utility model relates to an experimental apparatus field, concretely relates to vibrating instrument for physics experiments.

Background

Practice is the only standard for checking true theory, scientific experiments are the basis of physical development and the only means for checking the theory of physics, especially the development of modern physics, and are closely related to experiments.

In terms of physical mechanical vibration, vibration is a motion form, which means that an object reciprocates near a balance position, and the application of the existing vibration instrument is very wide and is distributed in various fields.

In real life, people can see that a plurality of machines are built by applying the theory of mechanical vibration, for example, the mechanical devices such as screening devices, conveying devices, feeding devices, crushing devices and the like are the result of applying the theory to real life, namely, the screening devices are the most products of mechanical vibration applied in real life, as the name suggests, the screening devices are the products of distinguishing different sizes and different types of objects by using vibration knowledge and screening components to reduce labor force and improve production efficiency, but most of the existing screening devices vibrate in a single direction, two eccentric blocks are used for driving two motors to reversely and automatically and synchronously rotate, so that a screen box generates linear vibration, but part of the objects to be distinguished are clamped in a middle screen layer to influence the screening effect, so that a vibrating instrument for physical experiments is necessary to be provided, so as to design a corresponding screening mechanical device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vibrating instrument for physics experiments.

To achieve the purpose, the utility model adopts the following technical proposal:

provides a vibrating instrument for physics experiments, which comprises a base, a chassis base, a vibrating disk, a fixed disk, two collecting boxes, a controller, a transverse vibrating component, a longitudinal vibrating component, four support rods and four avoidance columns, wherein the base is of a square structure and is fixedly arranged at the bottom end of the chassis base through the four avoidance columns, the chassis base, the vibrating disk and the fixed disk are all of a cylindrical structure, the chassis base is arranged between the base and the vibrating disk, the vibrating disk is arranged between the chassis base and the fixed disk, the base is fixedly connected with the chassis base and the fixed disk through the four support rods, the two collecting boxes are same in shape and size and are fixedly arranged on the base, the controller is fixedly arranged at the outer edge of the fixed disk, the transverse vibrating component comprises a supporting round platform, a first motor and a cam, and the supporting round platform is fixedly arranged at the top of the fixed disk, the first motor is the handstand state and sets up in the top that supports the round platform, the cam sets up in the bottom that supports the round platform, the longitudinal vibration subassembly includes the master gear, from the gear, the second motor, the slip table, the pinion rack, two expansion plates and four reset spring, the master gear with be the meshing state from the gear and set up, the slip table is the bar plate structure and the slip table is fixed to be set up in chassis base top, pinion rack laminating slip table top sets up, two expansion plate symmetries set up directly over the pinion rack, four reset spring set up between vibration dish and two expansion plates, the second motor is fixed to be set up on the base.

Preferably, the outer fringe symmetry of vibration dish is equipped with the same trepanning of four diameters, and four tops of dodging the post all overlap and locate corresponding four trepanning downtheholess to four diameters of dodging the capital end all are less than the diameter of four trepanning, and the top of vibration dish is equipped with the ring way, are equipped with the screening net in the ring way, and the screening net card connects in the ring way, the top middle part of vibration dish is equipped with changes the hole, and the cam is located changes the downthehole and cam and commentaries on classics hole sliding connection.

Preferably, the bottom of the loop is symmetrically provided with two square holes, two ends of each square hole are inclined planes, the two collecting boxes are the same in shape and size, the two collecting boxes are Z-shaped structures, each collecting box comprises a collecting box, a slide and a storage box, the slide is arranged between the collecting box and the storage box, and the slide is fixedly connected with the collecting box and the storage box.

Preferably, the top end of the supporting circular truncated cone is provided with a flange, the flange is fixedly connected with the supporting circular truncated cone, the middle of the top end of the supporting circular truncated cone is provided with a shaft hole, the first motor is fixedly arranged in the middle of the top end of the flange, and an output shaft of the first motor penetrates through the shaft hole and is fixedly connected with the cam through a coupler.

Preferably, the slip table is the strip shaped plate structure to the slip table sets up in four dodges between the post, and the fixed two strip slides that are equipped with in top of slip table, the bottom of pinion rack is equipped with twice spout, two strip slides and the twice spout sliding connection that corresponds.

Preferably, the pinion rack is close to the fixed rack that is equipped with in second motor one side, the master gear with from the gear all with the pinion rack meshing, the number of circumference angles in master gear outer fringe tooth top is no more than 30, from the number of circumference angles in gear outer fringe tooth top is no more than 180, the output shaft of second motor passes through shaft coupling and master gear fixed connection, from the gear through pivot and slip table rotation connection, the top of pinion rack is concavo-convex structure.

Preferably, the two telescopic plates are the same in structure and size, each telescopic plate consists of two cylindrical tables, a strip-shaped plate and a sliding plate, the two cylindrical tables which are the same in shape and size are symmetrically and fixedly arranged on two sides of the top of the strip-shaped plate, the sliding plate is fixedly arranged at the bottom of the strip-shaped plate, the bottom end of the sliding plate is semi-cylindrical, and the bottom of the sliding plate is in sliding fit with the top of the toothed plate.

Preferably, the bottoms of the four return springs are correspondingly sleeved on the cylindrical table, four symmetrical spring holes are formed in the bottom of the vibration disc, the tops of the four return springs are fixedly connected with the corresponding spring holes, and the controller is electrically connected with the first motor and the second motor.

The utility model has the advantages that: checking whether the equipment is safe and normal, starting a first motor, driving a cam to rotate by an output shaft of the first motor, driving a vibration disc to reciprocate in the horizontal direction due to the fact that a cam end is attached to the inner wall of a rotating hole and four avoidance columns are inserted into four sleeve holes, and the diameter of the tops of the avoidance columns is smaller than that of the sleeve holes, so that the cam can drive a vibration disc to reciprocate in the horizontal direction to achieve the purpose of transverse vibration, then pressing a switch of a second motor of a controller, driving a main gear to rotate by an output shaft of the second motor, driving a rack to horizontally move to one side due to the fact that a main gear is meshed with a rack, driving the rack to horizontally move away from the rack for a while being meshed with a slave gear, driving the slave gear to rotate, driving the rack to move to the other side due to the fact that the slave gear is meshed with the rack, so that the rack can reciprocate in the horizontal direction, and the rack, half cylindrical bottom and the unsmooth shape top sliding connection of pinion rack of expansion plate, therefore the pinion rack can drive the vertical direction reciprocating motion of expansion plate, and reset spring and vibration dish fixed connection are passed through at the expansion plate top, consequently spring stress can drive vibration dish up-and-down motion, and reach longitudinal vibration's purpose, put into the vibration dish ring road with the object of different grade type this moment, through transverse vibration, longitudinal vibration and screening net distinguish different article, single article fall into two collecting boxes through two quad slit of vibration dish bottom, the utility model discloses a start first motor and second motor, just can distinguish to the article screening of different grade type, easy operation, direct objective, both use manpower sparingly and improved the efficiency of screening again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the base plate of the present invention separated from the fixed disk;

FIG. 3 is a schematic view of the connection between the vibrating plate and the longitudinal vibrating assembly of the present invention;

fig. 4 is a schematic diagram of the longitudinal vibration assembly according to the present invention;

FIG. 5 is a schematic view of the connection between the vibration plate and the transverse vibration assembly of the present invention;

FIG. 6 is a schematic view of the collecting box of the present invention;

FIG. 7 is an enlarged schematic view at A in FIG. 3;

in the figure: the device comprises a base 1, a chassis base 2, a vibrating disc 3, a fixed disc 4, a collecting box 5, a controller 6, a transverse vibrating component 7, a longitudinal vibrating component 8, a supporting rod 9, an avoiding column 10, a supporting circular table 11, a first motor 12, a cam 13, a main gear 14, a driven gear 15, a second motor 16, a sliding table 17, a toothed plate 18, a telescopic plate 19, a return spring 20, a trepanning 21, a loop 22, a screening net 23, a rotary hole 24, a square hole 25, a material collecting box 26, a slideway 27, a material storage box 28, a flange 29, a shaft hole 30, a strip-shaped sliding plate 31, a sliding groove 32, a cylindrical table 33, a moving plate 34, a sliding plate 35 and a spring hole 36.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the vibrating apparatus for physical experiments comprises a base 1, a chassis base 2, a vibrating disk 3, a fixed disk 4, two collecting boxes 5, a controller 6, a transverse vibrating component 7, a longitudinal vibrating component 8, four support rods 9 and four avoiding columns 10, wherein the base 1 is of a square structure, the base 1 is fixedly arranged at the bottom end of the chassis base 2 through the four avoiding columns 10, the chassis base 2, the vibrating disk 3 and the fixed disk 4 are all of a cylindrical structure, the chassis base 2 is arranged between the base 1 and the vibrating disk 3, the vibrating disk 3 is arranged between the chassis base 2 and the fixed disk 4, the base 1 is fixedly connected with the chassis base 2 and the fixed disk 4 through the four support rods 9, the two collecting boxes 5 are the same in shape and size, the two collecting boxes 5 are fixedly arranged on the base 1, and the controller 6 is fixedly arranged at the outer edge of the fixed disk 4, the transverse vibration assembly 7 comprises a supporting circular truncated cone 11, a first motor 12 and a cam 13, the supporting circular truncated cone 11 is fixedly arranged at the top of the fixed disc 4, the first motor 12 is arranged at the top of the supporting circular truncated cone 11 in an inverted state, the cam 13 is arranged at the bottom of the supporting circular truncated cone 11, the longitudinal vibration assembly 8 comprises a main gear 14, a driven gear 15, a second motor 16, a sliding table 17, a toothed plate 18, two telescopic plates 19 and four reset springs 20, the main gear 14 and the driven gear 15 are arranged in an engaged state, the sliding table 17 is in a strip-shaped plate structure, the sliding table 17 is fixedly arranged at the top of the chassis base 2, the toothed plate 18 is arranged at the top end of the sliding table 17, the two telescopic plates 19 are symmetrically arranged right above the toothed plate 18, the four reset springs 20 are arranged between the vibration disc 3 and the two telescopic plates 19, the second motor 16 is fixedly, the switch of the first motor 12 of the controller 6 is pressed, the output shaft of the first motor 12 drives the cam 13 to rotate, because the end of the cam 13 is attached to the inner wall of the rotating hole 24, the four avoidance columns 10 are inserted into the four sleeve holes 21, and the diameter of the top of the avoidance columns 10 is smaller than that of the sleeve holes 21, the cam 13 can drive the vibration disc 3 to rotate back and forth in the horizontal direction, so as to achieve the purpose of transverse vibration, then the switch of the second motor 16 of the controller 6 is pressed, the output shaft of the second motor 16 drives the main gear 14 to rotate, because the main gear 14 is meshed with the rack, the main gear 14 drives the rack to move horizontally to one side, the tooth top of the main gear 14 leaves the rack and is meshed with the slave gear 15, the main gear 14 drives the slave gear 15 to rotate, because the slave gear 15 is meshed with the rack, the rack is driven to move to the other side by the slave gear 15, and rack and pinion rack 18 fixed connection, so pinion rack 18 level reciprocating motion on slip table 17, the half cylindrical bottom and the protruding concave-convex top sliding connection of pinion rack 18 of expansion plate 19, consequently pinion rack 18 can drive the vertical direction reciprocating motion of expansion plate 19, and expansion plate 19 top is through reset spring 20 and vibration dish 3 fixed connection, consequently spring stress can drive vibration dish 3 up-and-down motion, and reach longitudinal vibration's purpose, put into vibration dish 3 ring track 22 with the object of different grade type this moment, through transverse vibration, longitudinal vibration and screening net 23 distinguish different article apart, single article falls into two collecting boxes 5 through two quad slit 25 of vibration dish 3 bottom.

The outer fringe symmetry of vibration dish 3 is equipped with the same trepanning 21 of four diameters, and four tops of dodging post 10 are all overlapped and are located corresponding four trepanning 21 in to four diameters of dodging post 10 top all are less than the diameter of four trepanning 21, and the top of vibration dish 3 is equipped with the roundabout 22, is equipped with screening net 23 in the roundabout 22, and screening net 23 joint is in roundabout 22, the top middle part of vibration dish 3 is equipped with changes hole 24, and cam 13 is located changes hole 24 and cam 13 with change hole 24 sliding connection, and first motor 12 drives cam 13 and rotates, and cam 13 end of cam 13 is changeed the hole 24 and is changeed the inner wall laminating rotational sliding of vibration dish 3, forms a centrifugal force, and the diameter of dodging post 10 top is less than the diameter of trepanning 21 for vibration dish 3 wholly makes a round trip to rotate in four dodge post 10, reaches the purpose of horizontal direction vibration.

The symmetry is equipped with two quad slit 25 in ring 22 bottom, and the both ends of every quad slit 25 are the inclined plane setting, two 5 shape sizes of collecting box are the same and two collecting box 5 are Z shape structure, every collecting box 5 comprises the box 26 that gathers materials, slide 27 and storage case 28, slide 27 sets up between the box 26 that gathers materials and storage case 28, and slide 27 and the equal fixed connection of box 26 that gathers materials and storage case 28, after the single article that has been distinguished drops to ring 22 bottom, because two quad slit 25 are the inclined plane setting, under transverse vibration and longitudinal vibration, single article can drop to the box 26 that gathers materials, down the landing to in the storage case 28 along slide 27.

Support 11 tops of round platform and be equipped with flange 29, flange 29 is fixed connection with support round platform 11, support 11 top middle parts of round platform are equipped with shaft hole 30, and first motor 12 is fixed to be set up in flange 29 top middle part to the output shaft of first motor 12 passes shaft hole 30 and cam 13 fixed connection through the shaft coupling, and the output shaft of first motor 12 drives cam 13 and rotates, and cam 13 pastes commentaries on classics hole 24 again and rotates, avoids causing the output shaft damage or making the motor shift to first motor 12, so sets up support round platform 11 of support motor.

The sliding table 17 is of a strip-shaped plate structure, the sliding table 17 is arranged between the four avoidance columns 10, two strip-shaped sliding plates 31 are fixedly arranged at the top of the sliding table 17, two sliding grooves 32 are formed in the bottom of the toothed plate 18, the two strip-shaped sliding plates 31 are in sliding connection with the corresponding two sliding grooves 32, the second motor 16 drives the main gear 14 to rotate, the main gear 14 drives the rack to move in a reciprocating mode from the gear 15, the toothed plate 18 moves in a reciprocating mode along with the rack in a synchronous mode, and therefore the strip-shaped sliding plates 31 and the sliding grooves 32 are necessarily arranged to achieve the effect of moving in.

The rack is fixedly arranged on one side, close to the second motor 16, of the toothed plate 18, the main gear 14 and the driven gear 15 are meshed with the toothed plate 18, the circumferential angle of the number of tops of peripheral teeth of the main gear 14 is not more than 30 degrees, the circumferential angle of the number of tops of peripheral teeth of the driven gear 15 is not more than 180 degrees, the output shaft of the second motor 16 is fixedly connected with the main gear 14 through a coupler, the driven gear 15 is rotatably connected with the sliding table 17 through a rotating shaft, the top of the toothed plate 18 is of a concave-convex structure, the circumferential angle of the number of tops of the main gear 14 is not more than 30 degrees, and the circumferential angle of the number of tops of the driven gear 15 is not more than 180 degrees, so that the three are prevented from being meshed with each other, the transverse.

The two telescopic plates 19 are identical in structure size, each telescopic plate 19 is composed of two cylindrical tables 33, a moving plate 34 and a sliding plate 35, the two cylindrical tables 33 identical in shape and size are symmetrically and fixedly arranged on two sides of the top of the moving plate 34, the sliding plates 35 are fixedly arranged at the bottom of the moving plate 34, the bottom ends of the sliding plates 35 are semi-cylindrical, the bottom of the sliding plates 35 are in sliding fit with the top of the toothed plate 18, the bottom ends of the sliding plates 35 are semi-cylindrical, when the toothed plate 18 is translated in a reciprocating mode in the horizontal direction, the protruding portions rub against the bottom ends of the sliding plates 35, and friction damage can be reduced due to the.

The bottom of the four reset springs 20 is correspondingly sleeved on the cylindrical table 33, four symmetrical spring holes 36 are formed in the bottom of the vibration disc 3, the tops of the four reset springs 20 are fixedly connected with the corresponding spring holes 36, the controller 6 is electrically connected with the first motor 12 and the second motor 16, the four reset springs 20 support the vibration disc 3, and the electric connection operation is convenient, convenient and fast, and the working efficiency is improved.

The working principle is as follows: firstly checking whether the equipment is safe and normal, pressing down a switch of a first motor 12 of a controller 6, driving a cam 13 to rotate by an output shaft of the first motor 12, driving a vibration disc 3 to reciprocate in the horizontal direction because the end of the cam 13 is attached to the inner wall of a rotating hole 24, inserting four avoidance columns 10 into four sleeve holes 21, and the diameter of the top of each avoidance column 10 is smaller than that of each sleeve hole 21, so as to achieve the aim of transverse vibration, then pressing down a switch of a second motor 16 of the controller 6, driving a main gear 14 to rotate by an output shaft of a second motor 16, driving the main gear 14 to be meshed with a rack, driving the rack to move horizontally to one side by the main gear 14, leaving the tooth top of the main gear 14 from the rack to be meshed with a slave gear 15, driving the slave gear 15 to rotate, driving the rack to move to the other side by the slave gear 15 because the slave gear 15 is meshed with the rack, therefore, the rack can reciprocate back and forth in the horizontal direction, and the rack is fixedly connected with the toothed plate 18, so the toothed plate 18 reciprocates horizontally on the sliding table 17, the semi-cylindrical bottom of the expansion plate 19 is in sliding connection with the concave-convex top of the toothed plate 18, so the toothed plate 18 can drive the expansion plate 19 to reciprocate in the vertical direction, the top of the expansion plate 19 is fixedly connected with the vibration disc 3 through the return spring 20, the spring stress can drive the vibration disc 3 to move up and down, the purpose of longitudinal vibration is achieved, at the moment, objects of different types are placed in the annular channel 22 of the vibration disc 3, different objects are distinguished through transverse vibration, longitudinal vibration and the screening net 23, and a single object falls into the two collecting boxes 5 through the two square holes 25 at the bottom of the vibration disc 3.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (8)

1. A vibrating instrument for physical experiments is characterized by comprising a base (1), a chassis base (2), a vibrating disc (3), a fixed disc (4), two collecting boxes (5), a controller (6), a transverse vibrating assembly (7), a longitudinal vibrating assembly (8), four supporting rods (9) and four avoidance columns (10), wherein the base (1) is of a square structure, the base (1) is fixedly arranged at the bottom end of the chassis base (2) through the four avoidance columns (10), the chassis base (2), the vibrating disc (3) and the fixed disc (4) are all of a cylindrical structure, the chassis base (2) is arranged between the base (1) and the vibrating disc (3), the vibrating disc (3) is arranged between the chassis base (2) and the fixed disc (4), and the base (1) is fixedly connected with the chassis base (2) and the fixed disc (4) through the four supporting rods (9), the two collecting boxes (5) are identical in shape and size, the two collecting boxes (5) are fixedly arranged on the base (1), the controller (6) is fixedly arranged on the outer edge of the fixed disc (4), the transverse vibration component (7) comprises a supporting circular table (11), a first motor (12) and a cam (13), the supporting circular table (11) is fixedly arranged on the top of the fixed disc (4), the first motor (12) is arranged on the top of the supporting circular table (11) in an inverted state, the cam (13) is arranged on the bottom of the supporting circular table (11), the longitudinal vibration component (8) comprises a main gear (14), a secondary gear (15), a second motor (16), a sliding table (17), a toothed plate (18), two expansion plates (19) and four reset springs (20), the main gear (14) and the secondary gear (15) are arranged in an engaged state, the sliding table (17) is of a strip-shaped plate structure, and the sliding table (17) is fixedly arranged on the top of the chassis base, pinion rack (18) laminating slip table (17) top sets up, and two expansion plate (19) symmetry set up directly over pinion rack (18), and four reset spring (20) set up between vibration dish (3) and two expansion plate (19), and second motor (16) are fixed to be set up on base (1).

2. The vibrating instrument for the physical experiment as recited in claim 1, wherein four sleeve holes (21) with the same diameter are symmetrically formed in the outer edge of the vibrating disk (3), the top ends of four avoiding columns (10) are sleeved in the corresponding four sleeve holes (21), the diameters of the top ends of the four avoiding columns (10) are smaller than the diameters of the four sleeve holes (21), a loop (22) is formed in the top of the vibrating disk (3), a screening net (23) is arranged in the loop (22), the screening net (23) is clamped in the loop (22), a rotating hole (24) is formed in the middle of the top end of the vibrating disk (3), and the cam (13) is located in the rotating hole (24) and is in sliding connection with the rotating hole (24).

3. The vibrating instrument for the physical experiment as claimed in claim 2, wherein the bottom of the ring (22) is symmetrically provided with two square holes (25), both ends of each square hole (25) are arranged in an inclined plane, the two collecting boxes (5) are the same in shape and size, the two collecting boxes (5) are Z-shaped structures, each collecting box (5) is composed of a collecting box (26), a slide way (27) and a storage box (28), the slide way (27) is arranged between the collecting box (26) and the storage box (28), and the slide way (27) is fixedly connected with the collecting box (26) and the storage box (28).

4. The vibrating instrument for the physical experiment as recited in claim 3, wherein a flange (29) is arranged at the top end of the supporting circular truncated cone (11), the flange (29) is fixedly connected with the supporting circular truncated cone (11), a shaft hole (30) is formed in the middle of the top end of the supporting circular truncated cone (11), the first motor (12) is fixedly arranged in the middle of the top end of the flange (29), and an output shaft of the first motor (12) penetrates through the shaft hole (30) through a coupler to be fixedly connected with the cam (13).

5. The vibrating instrument for the physical experiment is characterized in that the sliding table (17) is of a strip-shaped plate structure, the sliding table (17) is arranged among four avoidance columns (10), two strip-shaped sliding plates (31) are fixedly arranged at the top of the sliding table (17), two sliding grooves (32) are formed in the bottom of the toothed plate (18), and the two strip-shaped sliding plates (31) are in sliding connection with the corresponding two sliding grooves (32).

6. The vibrating instrument for the physical experiment as claimed in claim 5, wherein a rack is fixedly arranged on one side of the toothed plate (18) close to the second motor (16), the main gear (14) and the driven gear (15) are both meshed with the toothed plate (18), the circumferential angle of the top number of the outer edge teeth of the main gear (14) is not more than 30 degrees, the circumferential angle of the top number of the outer edge teeth of the driven gear (15) is not more than 180 degrees, the output shaft of the second motor (16) is fixedly connected with the main gear (14) through a coupler, the driven gear (15) is rotatably connected with the sliding table (17) through a rotating shaft, and the top of the toothed plate (18) is in a concave-convex structure.

7. The vibrating instrument for the physical experiment as claimed in claim 6, wherein the two telescopic plates (19) are identical in structure and size, each telescopic plate (19) is composed of two cylindrical tables (33), a moving plate (34) and a sliding plate (35), the two cylindrical tables (33) identical in shape and size are symmetrically and fixedly arranged on two sides of the top of the moving plate (34), the sliding plate (35) is fixedly arranged at the bottom of the moving plate (34), the bottom end of the sliding plate (35) is semi-cylindrical, and the bottom of the sliding plate (35) is in sliding fit with the top of the toothed plate (18).

8. The vibrating instrument for the physical experiment as claimed in claim 1, wherein the bottoms of the four return springs (20) are correspondingly sleeved on the cylindrical table (33), the bottom of the vibrating disk (3) is provided with four symmetrical spring holes (36), the tops of the four return springs (20) are fixedly connected with the corresponding spring holes (36), and the controller (6) is electrically connected with the first motor (12) and the second motor (16).

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