CN212460921U

CN212460921U - Electric control motion synthesis experimental instrument

Info

Publication number: CN212460921U
Application number: CN202021679846.XU
Authority: CN
Inventors: 朱斌; 段兰兰; 蒲生红; 舒象喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-02-02
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses an automatically controlled synthetic experiment appearance of motion, this experiment appearance includes the base, the riser, a power supply, switch K1, change-over switch K2, switch K3, change-over switch K4, the potentiometre, electronic push-and-pull rod A, electronic push-and-pull rod B, the painting brush, parts such as wire and coordinate paper, through change-over switch K2 and change-over switch K4, the up-and-down and side-to-side movement of the extreme point of simultaneous control electronic push-and-pull rod A and electronic push-and-pull rod B, realize the synthesis of the motion under the different speeds, this experiment appearance is integrated in an organic whole, independently demonstrate different physical phenomenon respectively. The utility model discloses the beneficial effect who gains is: (1) the synthesis of motion is shown by utilizing the two electric push-pull rods, the observability of an experiment is enhanced, the students can quickly learn the physical process (2) conveniently, and the instrument has the advantages of being clear in motion trail (3) and simple in structure, operation is simple, and repeatability is good by introducing a painting brush.

Description

Electric control motion synthesis experimental instrument

Technical Field

The utility model relates to a physical teaching apparatus, especially an automatically controlled motion synthesis experiment appearance.

Background

In the physical teaching process of high school, the teaching of object motion synthesis is involved, and due to lack of proper technical means, the synthesis of various different motions of an object is difficult to realize visual display in class. In the existing experimental instrument, only the magnetic drawing board records the motion trail, so that not only is the trail image unclear, but also the quantitative measurement of the motion information can not be carried out. And the students lack realistic experience, so that the students are difficult to learn and are not beneficial to the students to quickly and accurately master knowledge key points and solve related problems by application.

Disclosure of Invention

In order to overcome above not enough, strengthen reliability and the nature directly perceived of experiment, the utility model provides an automatically controlled motion synthesis experiment appearance, this experiment appearance includes the base, the riser, a power supply, switch K1, change-over switch K2, switch K3, change-over switch K4, the potentiometre, electronic push-and-pull rod A, electronic push-and-pull rod B, the painting brush, parts such as wire and coordinate paper, through change-over switch K2 and change-over switch K4, control the up-and-down and side-to-side movement of the extreme point of electronic push-and-pull rod A and electronic push-and-pull rod B's extreme point, realize the synthesis of the motion under the different speeds, this experiment appearance is integrated in an organic whole, respectively independently demonstrate different.

The utility model provides a scheme that its technical problem adopted mainly has following several: 1. the experimental instrument comprises a base, a vertical plate, a power supply, a switch K1, a reversing switch K2, a switch K3, a reversing switch K4, a potentiometer, an electric push-pull rod A, an electric push-pull rod B, a painting brush, a power line and coordinate paper, wherein the vertical plate, the power supply and the electric push-pull rod B are fixed on the base, the switch K1, the reversing switch K2, a switch K3, the reversing switch K4, the potentiometer and the coordinate paper are fixed on the vertical plate, the electric push-pull rod A is fixed on the electric push-pull rod B, the power supply, the power line of the electric push-pull rod A and the power line of the fixed electric push-pull rod B penetrate through the vertical plate.

2. The experimental device is characterized in that the anode of a power supply is connected with one end of a switch K, one ends of the switch K1 and the switch K3 are connected with the other end of the switch K, the other end of the switch K1 is connected with an anode conversion point of a reversing switch K2, two access points of the reversing switch K2 are connected with two power lines of an electric push-pull rod A, the other end of the switch K3 is connected with one end of a potentiometer, the other end of the potentiometer is connected with an anode conversion point of a reversing switch K4, two access points of the reversing switch K4 are connected with two power lines of an electric push-pull rod B, and a cathode conversion point of the reversing switch K2 and a cathode conversion point of a reversing switch K4 are connected with the cathode of the power supply.

3. According to the experimental device, an electric push-pull rod A is fixed on an electric push-pull rod B, the electric push-pull rod A is fixed at the top end of the electric push-pull rod B and is perpendicular to the electric push-pull rod B, and a soft painting brush is arranged at the top end of the electric push-pull rod A.

4. The coordinate paper of the experimental device is pasted on the vertical plate.

The utility model has the advantages that: (1) the experiment instrument is integrated into a whole, different physical phenomena are independently demonstrated respectively, (2) synthesis of motion is demonstrated by utilizing two electric push-pull rods, observability and intuition of an experiment are enhanced, students can conveniently and rapidly learn physical processes, (3) images of motion tracks are clearer by introducing painting brushes, and (4) the experiment instrument is simple in structure, simple to operate and good in repeatability, and quantitative analysis can be carried out by using coordinate paper.

Drawings

The apparatus of the present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is an electrical schematic.

Fig. 2 is a schematic diagram of a specific embodiment.

Detailed Description

The structure diagram of the utility model is shown in fig. 2, the experimental instrument is composed of a base (11), a vertical plate (13), a power supply (1), a switch K (2), a switch K1 (3), a reversing switch K2 (4), a switch K3 (6), a reversing switch K4 (8), a potentiometer (7), an electric push-pull rod A (5), an electric push-pull rod B (9), a painting brush (14), a power line (10) and coordinate paper (12), the vertical plate (13), the power supply (1) and the electric push-pull rod B (9) are fixed on the base (11), the switch K (2), the switch K1 (3), the reversing switch K2 (4), a switch K3 (6), a reversing switch K4 (8), the potentiometer (7) and the coordinate paper (12) are fixed on the vertical plate (13), the electric push-pull rod A (5) is fixed on the electric push-pull rod B (9), the power supply (1), the electric push-pull rod A (5) and the vertical plate (10) for fixing the electric push-pull rod B (9) pass through, the back of the vertical plate (13) is connected with a corresponding switch. The positive pole of a power supply (1) is connected with one end of a switch K (2), one ends of a switch K1 (3) and a switch K3 (6) are connected with the other end of the switch K (2), the other end of the switch K1 (3) is connected with a positive pole conversion point of a reversing switch K2 (6), two access points of the reversing switch K2 (4) are connected with two power lines (10) of an electric push-pull rod A (5), the other end of the switch K3 (6) is connected with one end of a potentiometer (7), the other end of the potentiometer (7) is connected with a positive pole conversion point of a reversing switch K4 (8), two access points of the reversing switch K4 (8) are connected with two power lines of an electric push-pull rod B (9), and a negative pole conversion point of the reversing switch K2 (4) is connected with a negative pole conversion point of the reversing switch K4 (4). An electric push-pull rod A (5) is fixed on the electric push-pull rod B (9), the electric push-pull rod A (5) is fixed at the top end of the electric push-pull rod B (9) and is perpendicular to the electric push-pull rod B B (9), and a soft painting brush (14) is arranged at the top end of the electric push-pull rod A (5). The coordinate paper (12) is pasted on the vertical plate B (13).

The utility model discloses the beneficial effect who gains is: utilize two electronic push-and-pull rods to demonstrate the synthesis of motion, strengthened the observability of experiment, the quick cognitive physical process of student of being convenient for through introducing the painting brush, makes the image of movement track more clear, instrument simple structure, easy operation, good reproducibility uses coordinate paper to carry out quantitative analysis.

In this embodiment, the experimental apparatus is placed in a horizontal state, and first, two uniform linear motion combined demonstrations are performed: and closing the switch K, the switch K1, the reversing switch K2, the switch K3 and the reversing switch K4, and enabling the lengths of the electric push-pull rod A and the fixed electric push-pull rod B to return to the minimum position by using the reversing switch K2 and the reversing switch K4. And (3) disconnecting the switch K, changing the positions of the reversing switch K2 and the reversing switch K4 to reverse, closing the switch K again, moving the top end of the electric push-pull rod A in the horizontal direction, moving the electric push-pull rod B upwards, fixing the top end of the electric push-pull rod A, arranging a soft painting brush to draw a straight line on the coordinate paper, and taking down the coordinate paper to perform experimental analysis and obtain an experimental result, wherein the drawn straight line is the track of the combined motion of two uniform-speed linear motions as shown in (15) in FIG. 2. And secondly, demonstrating the synthesis of a uniform linear motion and a uniform variable linear motion: and closing the switch K, the switch K1, the reversing switch K2, the switch K3 and the reversing switch K4, and enabling the lengths of the electric push-pull rod A and the fixed electric push-pull rod B to return to the minimum position by using the reversing switch K2 and the reversing switch K4. And (3) disconnecting the switch K, changing the positions of the reversing switch K2 and the reversing switch K4 to reverse, closing the switch K again, moving the top end of the electric push-pull rod A in the horizontal direction, simultaneously moving the electric push-pull rod B upwards, rotating the potentiometer at a constant speed, uniformly moving the electric push-pull rod B upwards at a variable speed, fixing the top end of the electric push-pull rod A, arranging a soft painting brush on the top end of the electric push-pull rod A to draw a curve on the coordinate paper, wherein the drawn straight line is a track of combined motion of uniform-speed linear motion and uniform-variable-speed linear motion, taking down the coordinate paper, performing experimental analysis, and obtaining an experimental result. In the two experimental processes, the extension and contraction of the electric push-pull rod a and the electric push-pull rod B can be combined differently by reversing the reversing switch K2 and the reversing switch K4, so that straight lines in different directions and curves in different shapes can be obtained.

Claims

1. The electric control motion synthesis experiment instrument is characterized by comprising a base, a vertical plate, a power supply, a switch K1, a reversing switch K2, a switch K3, a reversing switch K4, a potentiometer, an electric push-pull rod A, an electric push-pull rod B, a painting brush, a power line and coordinate paper, wherein the vertical plate, the power supply and the electric push-pull rod B are fixed on the base, the switch K1, the reversing switch K2, the switch K3, the reversing switch K4, the potentiometer and the coordinate paper are fixed on the vertical plate, the electric push-pull rod A is fixed on the electric push-pull rod B, the power supply, the electric push-pull rod A and the power line for fixing the electric push-pull rod B penetrate through the vertical plate, and the rear part of the vertical plate.

2. An electrically controlled motion synthesis tester as claimed in claim 1, wherein the positive pole of the power supply is connected to one end of a switch K, one ends of a switch K1 and a switch K3 are connected to the other end of the switch K, the other end of the switch K1 is connected to the positive pole changing point of a change-over switch K2, two connection points of a change-over switch K2 are connected to two power lines of the electric push-pull rod a, the other end of the switch K3 is connected to one end of a potentiometer, the other end of the potentiometer is connected to the positive pole changing point of a change-over switch K4, two connection points of a change-over switch K4 are connected to two power lines of the electric push-pull rod B, and the negative pole changing point of a change-over switch K2 and the negative pole changing point of a change-over switch K4 are.

3. The experimental instrument for synthesis of electric control motion according to claim 1, wherein the electric push-pull rod a is fixed on the electric push-pull rod B, the electric push-pull rod a is vertically fixed on the top end of the electric push-pull rod B, and a soft painting brush is arranged on the top end of the electric push-pull rod a.