CN109272832B

CN109272832B - Experimental device for conveniently adjusting inclination angle for college physical potential energy experiment

Info

Publication number: CN109272832B
Application number: CN201811449844.9A
Authority: CN
Inventors: 蔡剑华; 刘长青; 彭元杰; 王先春
Original assignee: Hunan University of Arts and Science
Current assignee: Hunan University of Arts and Science
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-19
Anticipated expiration: 2038-11-30
Also published as: CN109272832A

Abstract

The invention discloses an experimental device convenient for adjusting an inclination angle for a college physical potential energy experiment, which comprises a base and an experimental table, wherein vertical rods are arranged on two sides above the base, a first sliding groove is embedded in the surface of one side of each vertical rod, the experimental table is installed in a clamping mode between the first sliding groove and the first sliding groove, supporting rods are arranged on two sides of the bottom of the experimental table, a rotating rod is installed on the inner threads of the supporting rods, and the bottom of the rotating rod is connected with a rotating disk. This experimental apparatus of inclination is adjusted with convenience to university's physical potential energy experiment highly adjusts work to whole device that the in-process that uses can be fine, and the inclination of whole device also can be adjusted for whole device is being better at the in-process flexibility of studying the potential energy, and the position that the in-process assurance iron ball that also can be fine of experiment falls behind is unchangeable, and the data of convenient follow-up experiment carry out the record work.

Description

Experimental device for conveniently adjusting inclination angle for college physical potential energy experiment

Technical Field

The invention relates to the technical field related to college physics teaching, in particular to an experimental device convenient for adjusting an inclination angle for college physics potential energy experiments.

Background

The experimental device for the college physical potential energy experiment is an auxiliary device which is convenient for teachers to teach potential energy variables in the process of teaching college physics, so that a more vivid effect of teaching students is achieved, and the teaching device in the existing market still has some problems in the process of using;

1. the existing potential energy teaching device cannot well adjust the falling inclined angle of a small ball in the using process, so that the whole device is poor in flexibility and too limited in use range in the using process;

2. in the process of using the whole device, the height of the whole device cannot be well adjusted, so that the height of the whole device is excessively fixed, and the height of the whole device is overlapped through external objects, so that the stability of the whole experimental device in the process of using the experimental device is often poor;

3. in the process of controlling potential energy variables, the position of the iron ball falling can not be well fixed, so that the displacement error of the iron ball falling is large, and the recording of experimental data is influenced.

Therefore, an experimental device for a college physical potential energy experiment, which is convenient for adjusting the inclination angle, is provided so as to solve the problems provided in the above description.

Disclosure of Invention

The invention aims to provide an experimental device for college physical potential energy experiments, which is convenient for adjusting the inclination angle, and aims to solve the problems that the college physical potential energy experimental device in the prior market cannot well adjust the height of the whole experimental device, cannot well fix the position of an iron ball after falling down and cannot well adjust the height of the whole experimental device in the using process.

In order to achieve the purpose, the invention provides the following technical scheme: an experimental device convenient for adjusting inclination angle for college physical potential energy experiments comprises a base and an experimental bench, wherein vertical rods are arranged on two sides above the base, a first sliding groove is embedded in the surface of one side of each vertical rod, the experimental bench is clamped between the first sliding groove and the middle of the first sliding groove, supporting rods are arranged on two sides of the bottom of the experimental bench, a rotating rod is arranged on the inner threads of each supporting rod, the bottom of the rotating rod is connected with a rotating disk, the outer portion of the rotating disk is connected with the output end of an electric motor through a belt, the electric motor is arranged above the base, the upper portion of the experimental bench is connected with an inclined plate through a reset rotating shaft, the upper portion of the inclined plate is connected with a horizontal plate through a reset rotating shaft, a fixing sleeve is arranged above the horizontal plate, and the bottom of the horizontal plate is clamped with a second sliding groove embedded in the surface, the below of hang plate is provided with the eccentric wheel, and eccentric wheel one side top is connected with the rotation axis, and the outside cover of rotation axis is equipped with the thread bush to the below of eccentric wheel is provided with the fixing base of installing on the laboratory bench, and the top of rotation axis is connected with rotatory handle, the top surface mosaic of laboratory bench has first slide rail, and the inside of first slide rail is provided with second reset spring, and the top of second reset spring is connected with the ejector pad, and the bottom of first slide rail is provided with the spacing groove, and the inside of spacing groove is provided with the gear simultaneously, the centre of fixed cover runs through there is the push rod, and the top of push rod runs through in the inside of placing the seat to one side top of fixed cover is connected with the top of push rod through first reset spring.

Preferably, be coaxial coupling between rotary disk and the rotary rod, and be fixed connection between rotary disk and the rotary rod to be welded connection between the top of rotary rod top threaded connection's bracing piece and the laboratory bench, the rotary rod centre of a circle is in the top of the horizontal axis of laboratory bench simultaneously.

Preferably, the upper surface of the experiment table is provided with a first slide rail and a second slide groove respectively, and the first slide rail and the second slide groove are symmetrically arranged above the experiment table.

Preferably, 3 second slide rails are arranged above the inclined plate at equal intervals, and the positions of the 3 second slide rails correspond to the positions of the 3 first slide rails on the experiment table.

Preferably, the eccentric wheel is arranged towards the outer side of the inclined plate, a rotating shaft connected with one side of the eccentric wheel is in threaded connection with the threaded sleeve, and a gap between the eccentric wheel and the bottom of the inclined plate is larger than zero.

Preferably, the top position symmetry of placing the seat is provided with 2 lugs, and the inside of placing the seat is run through and is provided with the reservation groove to the internal diameter of reservation groove is identical with the external diameter of push rod, and the top of push rod is thread structure, and the lug is the rubber material.

Preferably, the bottom of the push block is connected with the rack through a connecting block, the rack is meshed with the gear, and the gear is uniformly distributed in the limiting groove.

Compared with the prior art, the invention has the beneficial effects that: the experimental device convenient for adjusting the inclination angle for the college physical potential energy experiment can well adjust the height of the whole device in the using process, and the inclination angle of the whole device can also be adjusted, so that the whole device has better flexibility in the potential energy learning process, and the position of an iron ball after falling can be well ensured to be unchanged in the experimental process, thereby facilitating the recording work of the data of the subsequent experiments;

1. the eccentric wheel can well rotate at the bottom of the inclined plate, and can well adjust the height of the inclined plate in the rotating process, so that multi-angle experimental work can be simultaneously carried out above the device in the potential energy experimental process, and the eccentric wheel can well carry out displacement work under the action of the threaded sleeve and the rotating shaft, so that the whole inclined plate and the whole horizontal plate can be reduced to a certain extent under the action of the reset rotating shaft, the occupied space of the whole device is reduced, and the device is convenient to place;

2. the threaded connection between the rotating rod and the supporting rod can well adjust the height of the whole experiment table, so that the height of the whole device can be conveniently and flexibly adjusted, and a teacher can conveniently use the device;

3. the ejector pad is in the inside removal work that can be fine of first slide rail, and the rack is connected to ejector pad one side can be fine carry out the meshing relation between the gear, and then the in-process that the iron ball promoted the ejector pad and remove, the rack can be fine with gear engagement, again can be fine fix the position that the iron ball stopped under the limiting displacement of gear.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the eccentric wheel and the inclined plate according to the present invention;

FIG. 4 is a schematic view of the enlarged structure of the placement seat according to the present invention;

FIG. 5 is a schematic main sectional view of the seat of the present invention;

FIG. 6 is a schematic top view of the interior of the first slide rail according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 6 according to the present invention.

In the figure: 1. a base; 2. a vertical rod; 3. a first chute; 4. an electric motor; 5. a belt; 6. rotating the disc; 7. rotating the rod; 8. a support bar; 9. a laboratory bench; 10. a second chute; 11. a telescopic rod; 12. a horizontal plate; 13. resetting the rotating shaft; 14. an inclined plate; 15. an eccentric wheel; 16. fixing a sleeve; 17. a first slide rail; 18. rotating the handle; 19. a push rod; 20. a threaded sleeve; 21. a fixed seat; 22. a rotating shaft; 23. a placing seat; 2301. a bump; 2302. reserving a groove; 24. a first return spring; 25. a second return spring; 26. a push block; 2601. connecting blocks; 2602. a rack; 27. a limiting groove; 28. a gear; 29. a second slide rail.

Detailed Description

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

Referring to fig. 1-7, the present invention provides a technical solution: an experimental device for college physical potential energy experiments, which is convenient for adjusting an inclination angle, comprises a base 1, a vertical rod 2, a first chute 3, an electric motor 4, a belt 5, a rotating disk 6, a rotating rod 7, a supporting rod 8, an experimental table 9, a second chute 10, an expansion rod 11, a horizontal plate 12, a reset rotating shaft 13, an inclined plate 14, an eccentric wheel 15, a fixed sleeve 16, a first sliding rail 17, a rotating handle 18, a push rod 19, a threaded sleeve 20, a fixed seat 21, a rotating shaft 22, a placing seat 23, a convex block 2301, a reserved groove 2302, a first reset spring 24, a second reset spring 25, a push block 26, a connecting block 2601, a rack 2602, a limiting groove 27, a gear 28 and a second sliding rail 29, wherein the vertical rod 2 is installed on two sides above the base 1, the first chute 3 is embedded in the surface on one side of the vertical rod 2, the experimental table 9 is installed between the first chute 3 and the first chute 3 in a clamping manner, a rotating rod 7 is installed on the internal thread of the supporting rod 8, the bottom of the rotating rod 7 is connected with a rotating disk 6, the outside of the rotating disk 6 is connected with the output end of an electric motor 4 through a belt 5, the electric motor 4 is arranged at the upper position of the base 1, the upper part of the experiment table 9 is connected with an inclined plate 14 through a reset rotating shaft 13, the upper part of the inclined plate 14 is also connected with a horizontal plate 12 through the reset rotating shaft 13, a fixing sleeve 16 is arranged above the horizontal plate 12, the bottom of the horizontal plate 12 is clamped with a second sliding chute 10 embedded on the upper surface of the experiment table 9 through a telescopic rod 11, an eccentric wheel 15 is arranged below the inclined plate 14, the top end of one side of the eccentric wheel 15 is connected with a rotating shaft 22, a threaded sleeve 20 is sleeved outside the rotating shaft 22, a fixing seat 21 installed on the experiment table 9 is arranged below the eccentric wheel 15, and the, the top surface mosaic of laboratory bench 9 has first slide rail 17, and the inside of first slide rail 17 is provided with second reset spring 25, and the top of second reset spring 25 is connected with ejector pad 26, and the bottom of first slide rail 17 is provided with spacing groove 27, the inside of spacing groove 27 is provided with gear 28 simultaneously, the centre of fixed cover 16 is run through there is push rod 19, and the top of push rod 19 runs through the inside of placing seat 23, and one side top of fixed cover 16 is connected with the top of push rod 19 through first reset spring 24.

Be coaxial coupling between rotary disk 6 and the rotary rod 7, and be fixed connection between rotary disk 6 and the rotary rod 7, and be welded connection between 7 top threaded connection's of rotary rod 7 top bracing piece 8's the top and the laboratory bench 9, the rotary rod 7 centre of a circle is in the top of the horizontal axis of laboratory bench 9 simultaneously, conveniently highly adjust the work to laboratory bench 9 under the effect of rotary rod 7, make the height of whole device can carry out nimble regulation.

The upper surface of laboratory bench 9 is provided with first slide rail 17 and second spout 10 respectively, and first slide rail 17 and second spout 10 are in the top symmetry setting of laboratory bench 9.

The top of hang plate 14 is equidistant to be provided with 3 second slide rails 29, and the position of 3 second slide rails 29 corresponds each other with the position of 3 first slide rails 17 on the laboratory bench 9, carries out a lot of experiments simultaneously in the top of whole device that can be fine, conveniently contrasts the teaching.

Eccentric wheel 15 is inclined to the outside setting of hang plate 14, and be threaded connection between eccentric wheel 15 one side connection's rotation axis 22 and the thread bush 20, and the clearance between eccentric wheel 15 and the hang plate 14 bottom is greater than zero, the threaded connection of rotation axis 22 and thread bush 20, make rotation axis 22 can drive eccentric wheel 15 and carry out the horizontal removal work, also can make eccentric wheel 15 not be in the below of hang plate 14 simultaneously, conveniently reduce the vertical height of hang plate 14, reach the effect of conveniently placing.

The top position symmetry of placing seat 23 is provided with 2 lugs 2301, and the inside of placing seat 23 runs through and is provided with the reservation groove 2302 to the internal diameter of reservation groove 2302 is identical with the external diameter of push rod 19, and the top of push rod 19 is thread structure, and lug 2301 is the rubber material, and the convenience is fixed the iron ball of experimentation under lug 2301's effect.

The bottom of the push block 26 is connected with the rack 2602 through the connecting block 2601, the rack 2602 is meshed with the gear 28, and the gear 28 is uniformly distributed in the limiting groove 27, so that the rack 2602 under the condition of no stress can be limited conveniently under the meshing relationship between the rack 2602 and the gear 28, and the effect of fixing the position of the push block 26 is achieved.

The working principle of the embodiment is as follows: when the experimental device which is convenient for adjusting the inclination angle and used for the college physical potential energy experiment is used, firstly, the whole device needs to be placed at a proper position under the action of the bottom base 1, and then the experimental device can be well used, before use, the height of the whole device needs to be adjusted, and in the process of adjusting, according to the illustrations of fig. 1-2, the electric motor 4 is activated, causing the top end of the electric motor 4 to rotate, then the rotating discs 6 on both sides are rotated by the belt 5, the rotating discs 6 are rotated, the rotating rods 7 are rotated, the rotating rod 7 then causes the lifting operation of the support rod 8 screwed to the outside thereof, under the action of the supporting rod 8, two sides of the experiment table 9 move in the first sliding grooves 3 in the vertical rods 2, so that the adjustment work of the height of the whole device is completed;

in the using process, firstly, the angle of the whole device needs to be adjusted according to the experimental requirements, in the adjusting process, as shown in fig. 1 and 3, in the adjusting process, a worker needs to rotate the rotating handle 18, so that the rotating shaft 22 at the top end of the rotating handle 18 performs threaded rotation work inside the threaded sleeve 20, in the rotating process of the rotating shaft 22, the eccentric wheel 15 rotates, the inclined plate 14 above the eccentric wheel is inclined under the action of the reset rotating shaft 13, in the moving process of the inclined plate 14, the horizontal plate 12 drives the telescopic rod 11 at the bottom of the horizontal plate to perform telescopic and moving work, and after the appropriate position is reached, the potential energy experiment can be performed;

as shown in fig. 1-2 and 4-5, the worker needs to pull the push rod 19 to draw the push rod 19 inside the fixing sleeve 16, so that the push rod 19 is compressed backward, and then the push rod 19 is reset under the action of the first reset spring 24, so that the top end of the push rod 19 pushes out the iron ball clamped and placed inside the protrusion 2301, and then the pushed iron ball falls into the first slide rail 17 inside the experiment table 9 through the second slide rail 29 above the inclined plate 14 to move, and the position of the iron ball inside the first slide rail 17 is observed, so that the operation of the experiment can be well completed;

when the iron ball moves in the first slide rail 17, as shown in fig. 2 and 6-7, the iron ball pushes the push block 26, and when the push block 26 moves under a force, the connecting block 2601 and the rack 2602 connected with the push block 26 move, and when the rack 2602 moves, the rack 2602 is continuously engaged with the gear 28 in the limiting groove 27, and when the whole iron ball does not apply a force to the push block 26 during the engagement, the rack 2602 limits the position of the push block 26 pushed by the iron ball under the action of the gear 28 in the limiting groove 27, so that the position of the push block 26 pushed by the iron ball is fixed, and an experimenter can record data, and then the height adjustment work of the whole device is repeated, so that the potential energy at different heights can be tested, and since the first slide rail 17 and the second slide rail 29 are provided with 3 sets, and then also can be fine carry out the contrast experiment at the in-process of experiment, after whole experiment was accomplished, the teacher rotated handle 18 again, made eccentric wheel 15 not be in the bottom of hang plate 14 under the effect of rotation axis 22 and thread bush 20, hang plate 14 will rotate downwards under the effect of the pivot 13 that resets that connects above that, reduces the height of hang plate 14, again adjusts the height of whole device, and finally, just can be fine place whole device to accomplish a series of work.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an experimental apparatus for conveniently adjust inclination for college's physical potential energy experiment, includes base (1) and laboratory bench (9), montant (2) are installed to the top both sides of base (1), and one side surface mosaic of montant (2) has first spout (3) to laboratory bench (9) are installed with the middle block of first spout (3) in first spout (3), the both sides of laboratory bench (9) bottom are provided with bracing piece (8), its characterized in that: the inner thread of the supporting rod (8) is provided with a rotating rod (7), the bottom of the rotating rod (7) is connected with a rotating disk (6), the outer part of the rotating disk (6) is connected with the output end of an electric motor (4) through a belt (5), the electric motor (4) is arranged at the upper position of the base (1), the upper part of the experiment table (9) is connected with an inclined plate (14) through a reset rotating shaft (13), the upper part of the inclined plate (14) is also connected with a horizontal plate (12) through a reset rotating shaft (13), a fixing sleeve (16) is arranged above the horizontal plate (12), the bottom of the horizontal plate (12) is clamped with a second sliding groove (10) embedded on the upper surface of the experiment table (9) through a telescopic rod (11), an eccentric wheel (15) is arranged below the inclined plate (14), and the top end of one side of the eccentric wheel (15) is connected with a rotating shaft (22), a threaded sleeve (20) is sleeved outside the rotating shaft (22), a fixed seat (21) arranged on the experiment table (9) is arranged below the eccentric wheel (15), the top end of the rotating shaft (22) is connected with a rotating handle (18), a first sliding rail (17) is embedded on the upper surface of the experiment table (9), a second return spring (25) is arranged in the first slide rail (17), the top end of the second return spring (25) is connected with a push block (26), and the bottom of the first slide rail (17) is provided with a limit groove (27), and the inside of the limit groove (27) is provided with a gear (28), a push rod (19) penetrates through the middle of the fixed sleeve (16), the top end of the push rod (19) penetrates inside the placing seat (23), and one side top end of the fixed sleeve (16) is connected with the top end of the push rod (19) through a first return spring (24).

2. The experimental device for conveniently adjusting the inclination angle for the university physical potential energy experiment is characterized in that: be coaxial coupling between rotary disk (6) and rotary rod (7), and be fixed connection between rotary disk (6) and rotary rod (7) to be welded connection between the top of rotary rod (7) top threaded connection's bracing piece (8) and laboratory bench (9), rotary rod (7) centre of a circle is in the top of the horizontal axis of laboratory bench (9) simultaneously.

3. The experimental device for conveniently adjusting the inclination angle for the university physical potential energy experiment is characterized in that: the upper surface of laboratory bench (9) is provided with first slide rail (17) and second spout (10) respectively, and first slide rail (17) and second spout (10) are at the top symmetry setting of laboratory bench (9).

4. The experimental device for conveniently adjusting the inclination angle for the university physical potential energy experiment is characterized in that: 3 second slide rails (29) are arranged above the inclined plate (14) at equal intervals, and the positions of the 3 second slide rails (29) correspond to the positions of the 3 first slide rails (17) on the experiment table (9).

5. The experimental device for conveniently adjusting the inclination angle for the university physical potential energy experiment is characterized in that: the eccentric wheel (15) is arranged towards the outer side of the inclined plate (14), a rotating shaft (22) connected with one side of the eccentric wheel (15) is in threaded connection with the threaded sleeve (20), and the gap between the eccentric wheel (15) and the bottom of the inclined plate (14) is larger than zero.

6. The experimental device for conveniently adjusting the inclination angle for the university physical potential energy experiment is characterized in that: the top end position symmetry of placing seat (23) is provided with 2 lug (2301), and places the inside of seat (23) and run through and be provided with reservation groove (2302), and the internal diameter of reservation groove (2302) is identical with the external diameter of push rod (19), and the top of push rod (19) is thread structure, and lug (2301) are the rubber material.

7. The experimental device for conveniently adjusting the inclination angle for the university physical potential energy experiment is characterized in that: the bottom of the push block (26) is connected with the rack (2602) through the connecting block (2601), the rack (2602) is meshed with the gear (28), and the gear (28) is uniformly distributed in the limiting groove (27).