A spring oscillator experiment apparatus and method of use thereof

Abstract

The application discloses a spring oscillator experimental equipment and a use method thereof. The experimental equipment comprises a support plate, a stand column is arranged on the top of the support plate, a horizontal rod is arranged on the top of the stand column, a first bearing seat is installed on the horizontal rod, a second bearing seat is installed on the support plate, a threaded lead screw is rotationally connected between the first bearing seat and the second bearing seat, a stepping motor is fixedly installed at the bottom of the support plate, and the output end of the stepping motor is fixedly connected with one end of the threaded lead screw. A sliding block is slidably connected on the threaded lead screw, an installation plate is fixedly connected on the sliding block, a transparent cylinder is fixedly installed on the installation plate, and a first scale line is arranged on the transparent cylinder. The experimental steps of "three lines in one" are completed by automatically lifting the sliding block through the stepping motor, so that the control precision can be improved, and the human error can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of experimental equipment, in particular to a spring oscillator experimental equipment and a using method thereof. BACKGROUND

[0002] The spring oscillator is an idealized physical model which does not consider frictional resistance, air resistance, spring mass, and the size and shape of the oscillator, and is used to study the law of simple harmonic vibration. Simple harmonic motion is a mechanical vibration, and when an object is in simple harmonic motion, the force acting on the object is proportional to the displacement, and the force always points to the equilibrium position. At present, the spring oscillator experimental equipment is usually used to measure the stiffness coefficient and vibration period of the spring in the laboratory. However, the current spring oscillator experimental equipment has the defects of low control precision and large influence of human factors when measuring the stiffness coefficient of the spring by using a manual adjustment method to complete the "three-line combination" operation. In addition, the current spring oscillator experimental equipment usually uses a Hall sensor to count and statistics when measuring the vibration period of the spring, which has a small sensing range, increases the experimental operation difficulty and human error, and the Hall sensor is easy to be damaged. SUMMARY

[0003] The present application overcomes the shortcomings of the prior art and provides a spring oscillator experimental equipment and a using method thereof.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] The present application discloses a spring oscillator experimental equipment, which comprises a support plate, a stand column arranged on the top of the support plate, a horizontal rod arranged on the top of the stand column, a first bearing seat installed on the horizontal rod, a second bearing seat installed on the support plate, a threaded lead screw rotatably connected between the first bearing seat and the second bearing seat, a stepping motor fixedly installed on the bottom of the support plate, and an output end of the stepping motor fixedly connected with one end of the threaded lead screw.

[0006] A sliding block is slidably connected to the threaded lead screw, an installation plate is fixedly connected to the sliding block, a transparent cylinder is fixedly installed on the installation plate, a first scale line is arranged on the transparent cylinder, a through hole is further arranged on the installation plate, a hook is arranged on the horizontal rod, one end of a test spring is hung on the hook, the other end of the test spring is hung on one end of an iron column, the other end of the iron column is hung on a weight hanger, a second scale line is arranged on the iron column, the weight hanger is used for hanging a weight, a rubber plug is arranged on the weight hanger, and the rubber plug is used for fixing the weight.

[0007] A millimeter ruler is arranged on the stand column.

[0008] Further, in a preferred embodiment of the present application, a supporting plate is arranged on the column, and an electromagnetic coil is fixedly arranged on the supporting plate, and an output end of the electromagnetic coil is connected with the counter.

[0009] Further, in a preferred embodiment of the present application, a guide rail is arranged on the column, and a guide block is arranged on the sliding block, and the guide block can be embedded in the guide rail, so as to guide and limit the sliding block through the guide rail and the guide block.

[0010] Further, in a preferred embodiment of the present application, a horizontal adjusting mechanism is arranged at the bottom of the supporting plate, the horizontal adjusting mechanism comprises a first signal emitting block, a second signal emitting block and a signal receiving column, and the first signal emitting block, the second signal emitting block and the signal receiving column are fixedly arranged at the bottom of the supporting plate at a preset interval, a bottom end of the signal receiving column is connected with the supporting rod, a bottom end of the first signal emitting block is connected with the first electric telescopic rod, and a bottom end of the second signal emitting block is connected with the second electric telescopic rod.

[0011] Further, in a preferred embodiment of the present application, a signal receiving strip is arranged on the signal receiving column, and a first groove, a second groove and a third groove are respectively arranged in the signal receiving strip along the length direction, a first sensing sheet is arranged in the first groove, a second sensing sheet is arranged in the second groove, and a third sensing sheet is arranged in the third groove.

[0012] Further, in a preferred embodiment of the present application, a first laser emitting head is arranged on the first signal emitting block, and a second laser emitting head is arranged on the second signal emitting block, and the laser emitted by the first laser emitting head and the second laser emitting head can irradiate on the signal receiving strip.

[0013] Further, in a preferred embodiment of the present application, a first indicating lamp and a second indicating lamp are arranged on the supporting plate, the first indicating lamp is in communication connection with the first laser emitting head, the second indicating lamp is in communication connection with the second laser emitting head, and the first indicating lamp and the second indicating lamp can emit three kinds of light with different colors.

[0014] Furthermore, in a preferred embodiment of the present invention, when the laser emitted by the first laser emitting head irradiates the first sensing sheet, the first indicator light emits a first color light; when the laser emitted by the first laser emitting head irradiates the second sensing sheet, the first indicator light emits a second color light; when the laser emitted by the first laser emitting head irradiates the third sensing sheet, the first indicator light emits a third color light; when the laser emitted by the second laser emitting head irradiates the first sensing sheet, the second indicator light emits a first color light; when the laser emitted by the second laser emitting head irradiates the second sensing sheet, the second indicator light emits a second color light; when the laser emitted by the second laser emitting head irradiates the third sensing sheet, the second indicator light emits a third color light.

[0015] Furthermore, in a preferred embodiment of the present invention, the experimental equipment also includes a wireless controller, and the wireless controller is provided with a first adjustment button, a second adjustment button, a third adjustment button and a fourth adjustment button, the first adjustment button is used to adjust the direction of the stepper motor, the second adjustment button is used to adjust the speed of the stepper motor, the third adjustment button is used to adjust the telescopic height of the first electric telescopic rod, and the fourth adjustment button is used to adjust the telescopic height of the second electric telescopic rod.

[0016] Another aspect of the present invention discloses a method for using a spring oscillator experimental device, which is applicable to any of the spring oscillator experimental devices described above and comprises the following steps:

[0017] Hang the test spring with the hook, hang the iron column with the test spring, and hang the weight with the iron column;

[0018] Place an N-gram weight on the weight hanger and lock the weight on the weight hanger with a rubber plug;

[0019] Press the first adjustment button to make the stepper motor drive the transparent cylinder to move up and down until the three lines converge, and record the first reading of the bottom end of the test spring on the millimeter ruler;

[0020] Add N+1 gram weight to the weight hanger and lock the weight to the weight hanger with the rubber plug;

[0021] Press the first adjustment button to make the stepper motor drive the transparent cylinder to move up and down, so that the three lines are aligned again, and record the second reading of the bottom end of the test spring on the millimeter ruler;

[0022] Repeat the above steps S times;

[0023] The difference method is used to calculate the spring extension △x corresponding to the weight increment △m, and the spring constant k is calculated according to Hooke's law.

[0024] The present application solves the technical defects in the background art, and has the following beneficial effects: the stepping motor controls the automatic lifting of the sliding block to complete the experimental steps of "three wires in one", which can improve the control accuracy and reduce human error. The electromagnetic coil is used for inductive counting, which has a larger inductive range, higher sensitivity, longer service life and flexible operation. The horizontal adjustment mechanism has a simple control principle and high reliability, can adjust the supporting plate to an absolute horizontal state, has no human observation error, and can greatly improve the reliability of test data. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings of other embodiments according to these drawings without creative labor.

[0026] Figure 1 It is a first three-dimensional structure schematic diagram of the experimental equipment;

[0027] Figure 2 It is a second three-dimensional structure schematic diagram of the experimental equipment;

[0028] Figure 3 It is Figure 2 It is an enlarged structure schematic diagram of A-A in the middle;

[0029] Figure 4 It is a third three-dimensional structure schematic diagram of the experimental equipment;

[0030] Figure 5 It is a wireless controller structure schematic diagram;

[0031] Figure 6 It is a horizontal adjustment mechanism structure schematic diagram;

[0032] Figure 7 It is a first electric telescopic rod and second electric telescopic rod installation position structure schematic diagram;

[0033] Figure 8 It is a first laser emitter and second laser emitter installation position structure schematic diagram;

[0034] Figure 9 It is a each inductive sheet installation position structure schematic diagram;

[0035] The reference signs are explained as follows: 101, support plate; 102, stand; 103, crossbar; 104, first bearing seat; 105, second bearing seat; 106, threaded screw rod; 107, stepping motor; 108, sliding block; 109, mounting plate; 201, transparent cylinder; 202, first scale line; 203, through hole; 204, hook; 205, test spring; 206, iron column; 207, weight hook; 208, second scale line; 209, weight; 301, rubber plug; 302, millimeter scale; 303, wireless controller; 304, first adjusting button; 305, second adjusting button; 306, third adjusting button; 307, fourth adjusting button; 308, supporting plate; 309, electromagnetic coil; 401, guide rail; 402, guide block; 403, first signal emitting block; 404, second signal emitting block; 405, signal receiving column; 406, supporting rod; 407, first electric telescopic rod; 408, second electric telescopic rod; 409, signal receiving strip; 501, first groove; 502, second groove; 503, third groove; 504, first induction sheet; 505, second induction sheet; 506, third induction sheet; 507, first laser emitting head; 508, second laser emitting head; 509, first indicator light; 601, second indicator light. DETAILED DESCRIPTION

[0036] In order to enable persons skilled in the art to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments, which are all simplified schematic diagrams and only schematically show the basic structure of the present application, and therefore only show the configurations related to the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms “first”, “second” and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first”, “second” and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of “multiple” is two or more.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0039] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0040] As shown in Figure 1 , the present application discloses a spring oscillator experimental equipment, the experimental equipment includes support plate 101, the top of the support plate 101 is provided with stand column 102, the top of the stand column 102 is provided with cross bar 103, the first bearing seat 104 is installed on the cross bar 103, the second bearing seat 105 is installed on the support plate 101, the threaded lead screw 106 is rotatably connected between the first bearing seat 104 and the second bearing seat 105, the step motor 107 is fixedly installed at the bottom of the support plate 101, and the output end of the step motor 107 is fixedly connected with one end of the threaded lead screw 106.

[0041] As shown in Figure 1 、 2 , 3, 4, the threaded lead screw 106 is slidably connected with the sliding block 108, the mounting plate 109 is fixedly connected with the sliding block 108, the transparent cylinder 201 is fixedly installed on the mounting plate 109, the first scale line 202 is formed on the transparent cylinder 201, the through hole 203 is also formed on the mounting plate 109, the hook 204 is arranged on the cross bar 103, one end of the test spring 205 is hung with the hook 204, the other end of the test spring 205 is hung with one end of the iron column 206, the other end of the iron column 206 is hung with the weight hook 207, the second scale line 208 is formed on the iron column 206, the weight hook 207 is used for hanging the weight 209, the rubber plug 301 is arranged on the weight hook 207, and the rubber plug 301 is used for fixing the weight 209. The millimeter ruler 302 is arranged on the stand column 102.

[0042] As shown in Figure 5As shown, the experimental apparatus further comprises a wireless controller 303, which is provided with a first adjusting button 304, a second adjusting button 305, a third adjusting button 306 and a fourth adjusting button 307, the first adjusting button 304 is used for adjusting the steering of the stepping motor 107, the second adjusting button 305 is used for adjusting the rotating speed of the stepping motor 107, the third adjusting button 306 is used for adjusting the telescopic height of the first electric telescopic rod 407, and the fourth adjusting button 307 is used for adjusting the telescopic height of the second electric telescopic rod 408.

[0043] It should be noted that the stiffness coefficient of the spring can be measured by the experimental apparatus. Specifically, first, the bottom end of the test spring 205 is hung on the hook 204, then the iron column 206 is hung on the bottom end of the test spring 205, in this process, the axis of the iron column 206 and the axis of the test spring 205 need to coincide with the axis of the through hole 203; and the weight hook 207 is hung on the bottom end of the iron column 206, then 100g weight 209 is added on the weight hook 207, then the weight 209 is fixed by the rubber plug 301 to prevent the weight 209 from falling during the experiment, then the first adjusting button 304 on the wireless controller 303 is pressed, so that the stepping motor 107 is started, so that the threaded lead screw 106 is driven to rotate by the stepping motor 107, so that the sliding block 108 slides, and the sliding block 108 slides downward or upward by controlling the steering of the stepping motor 107, until the three lines coincide, that is, the mark line on the transparent cylinder 201, the mark line on the iron column 206 and the image of the mark line on the iron column 206 on the transparent cylinder 201 coincide, then the reading of the bottom end of the test spring 205 is read by the millimeter ruler 302; then 50g weight 209 is added, and the stepping motor 107 is controlled again to make the three lines coincide, and the reading of the bottom end of the test spring 205 is recorded; the above operation is repeated, and the weight 209 is increased for five times; then the spring elongation △x corresponding to the weight increment △m of 150g is obtained by the difference method, and the stiffness coefficient k of the spring is obtained according to Hooke's law. The experimental steps of "three lines coincide" are completed by the stepping motor 107 controlling the automatic lifting of the sliding block 108, which can improve the control accuracy and reduce the human error.

[0044] Further, in a preferred embodiment of the present application, the stand 102 is provided with a supporting plate 308, and the electromagnetic coil 309 is fixedly installed on the supporting plate 308, and the output end of the electromagnetic coil 309 is connected with the counter.

[0045] It should be noted that, relative to the traditional experimental equipment, the Hall sensor is replaced by the electromagnetic coil 309 in the experimental equipment, and the output end of the electromagnetic coil 309 is connected with the counter, so that the electromagnetic induction effect is used to trigger the counter to work when the vibration period of the test spring 205 is measured by the experimental equipment, and therefore the principle is different from the Hall sensor induction. When the metal conductor (the weight 209) is in the energized coil, the self-induction magnetic field is generated, the strength of the magnetic field is changed in the vibration process of the spring vibrator, and therefore the counter is triggered to work, and the vibration period of the spring vibrator can be recorded. Compared with the Hall sensor used in the traditional experimental equipment, the induction range of the experimental equipment is larger, the sensitivity is higher, the service life is longer, and the operation is flexible and convenient.

[0046] Further, in a preferred embodiment of the present application, the guide rail 401 is arranged on the column 102, and the guide block 402 is arranged on the sliding block 108, and the guide block 402 can be embedded in the guide rail 401, so as to guide and limit the sliding block 108 through the guide rail 401 and the guide block 402.

[0047] It should be noted that, in the process of sliding the sliding block 108 up and down along the threaded rod 106, the guide rail 401 and the guide block 402 guide and limit the sliding block 108, so as to avoid the collision between the hole wall of the through hole 203 on the mounting plate 109 and the iron column 206 when the mounting plate 109 slides up and down, and improve the reliability and stability of the experiment.

[0048] Further, in a preferred embodiment of the present application, as shown in Figure 6 , 7 , the bottom of the support plate 101 is provided with a horizontal adjustment mechanism, the horizontal adjustment mechanism comprises a first signal emitting block 403, a second signal emitting block 404 and a signal receiving column 405, and the first signal emitting block 403, the second signal emitting block 404 and the signal receiving column 405 are fixedly installed at the bottom of the support plate 101 at a predetermined interval, the bottom end of the signal receiving column 405 is connected with a support rod 406, the bottom end of the first signal emitting block 403 is connected with a first electric telescopic rod 407, and the bottom end of the second signal emitting block 404 is connected with a second electric telescopic rod 408.

[0049] Further, in a preferred embodiment of the present application, as shown in Figure 8 , 9As shown, the signal receiving column 405 is provided with a signal receiving strip 409, the signal receiving strip 409 is provided with a first groove 501, a second groove 502 and a third groove 503 along the length direction respectively, and the first groove 501 is provided with a first sensing sheet 504, the second groove 502 is provided with a second sensing sheet 505, and the third groove 503 is provided with a third sensing sheet 506.

[0050] Further, in a preferred embodiment of the present application, the first signal transmitting block 403 is provided with a first laser transmitting head 507, and the second signal transmitting block 404 is provided with a second laser transmitting head 508; the laser transmitted by the first laser transmitting head 507 and the second laser transmitting head 508 can irradiate on the signal receiving strip 409.

[0051] Further, in a preferred embodiment of the present application, the support plate 101 is provided with a first indicating lamp 509 and a second indicating lamp 601, the first indicating lamp 509 is in communication connection with the first laser transmitting head 507, and the second indicating lamp 601 is in communication connection with the second laser transmitting head 508, the first indicating lamp 509 and the second indicating lamp 601 can emit three different colors of light.

[0052] Further, in a preferred embodiment of the present application, when the laser transmitted by the first laser transmitting head 507 irradiates on the first sensing sheet 504, the first indicating lamp 509 emits a first color of light, when the laser transmitted by the first laser transmitting head 507 irradiates on the second sensing sheet 505, the first indicating lamp 509 emits a second color of light, and when the laser transmitted by the first laser transmitting head 507 irradiates on the third sensing sheet 506, the first indicating lamp 509 emits a third color of light; when the laser transmitted by the second laser transmitting head 508 irradiates on the first sensing sheet 504, the second indicating lamp 601 emits a first color of light, when the laser transmitted by the second laser transmitting head 508 irradiates on the second sensing sheet 505, the second indicating lamp 601 emits a second color of light, and when the laser transmitted by the second laser transmitting head 508 irradiates on the third sensing sheet 506, the second indicating lamp 601 emits a third color of light.

[0053] It should be noted that the first sensing sheet 504, the second sensing sheet 505, and the third sensing sheet 506 are in communication connection with the first indicator light 509 and the second indicator light 601. When the first sensing sheet 504 senses the laser signal emitted by the first laser emitting head 507, the first indicator light 509 emits yellow light; when the second sensing sheet 505 senses the laser signal emitted by the first laser emitting head 507, the first indicator light 509 emits green light; when the third sensing sheet 506 senses the laser signal emitted by the first laser emitting head 507, the first indicator light 509 emits red light. Similarly, when the first sensing sheet 504 senses the laser signal emitted by the second laser emitting head 508, the second indicator light 601 emits yellow light; when the second sensing sheet 505 senses the laser signal emitted by the second laser emitting head 508, the second indicator light 601 emits green light; when the third sensing sheet 506 senses the laser signal emitted by the second laser emitting head 508, the second indicator light 601 emits red light.

[0054] It should be noted that the second sensing sheet 505 serves as a reference area for horizontal correction, and the second sensing sheet 505 can be understood as a point. When the second sensing sheet 505 senses the laser signals emitted by the first laser emitting head 507 and the second laser emitting head 508, it can be indicated that the support plate 101 is in an absolute horizontal state.

[0055] It should be noted that before measuring the stiffness coefficient and the vibration period of the test through the experimental equipment, the support plate 101 needs to be leveled to ensure that the test spring 205 always maintains a vertical state (i.e., perpendicular to the ground level), and if the test spring 205 cannot maintain a vertical state, it will greatly affect the test data; at present, most experimental equipment adopts manual visual observation to level, and this method has a large human observation error, and it is difficult to achieve true leveling. Therefore, the horizontal adjusting mechanism is arranged in the present application to solve this technical problem, specifically, when the support plate 101 needs to be leveled, the experimental personnel first observe the light color of the first indicator light 509, if the light color of the first indicator light 509 is yellow, at this time it means that the first laser emitting head 507 emits laser to irradiate on the first sensing sheet 504, at this time it means that the height of the first laser emitting head 507 is higher than the horizontal correction height, at this time the experimental personnel need to press the downward button of the third adjusting button 306, so that the first electric telescopic rod 407 is retracted, so that the first laser emitting head 507 is slowly lowered by the first electric telescopic rod 407, and in this process the experimental personnel need to observe the light of the first indicator light 509, when the first indicator light 509 emits green light, it means that the laser emitted by the first laser emitting head 507 has irradiated on the second sensing sheet 505, at this time it can be explained that the height of the first laser emitting head 507 has been leveled with the horizontal correction height; if the light color of the first indicator light 509 is red, at this time it means that the first laser emitting head 507 emits laser to irradiate on the third sensing sheet 506, at this time it means that the height of the first laser emitting head 507 is lower than the horizontal correction height, at this time the experimental personnel need to press the upward button of the third adjusting button 306, so that the first electric telescopic rod 407 is elongated, so that the first laser emitting head 507 is slowly raised by the first electric telescopic rod 407, and in this process the experimental personnel need to observe the light of the first indicator light 509, when the first indicator light 509 emits green light, it means that the laser emitted by the first laser emitting head 507 has irradiated on the second sensing sheet 505, at this time it can be explained that the height of the first laser emitting head 507 has been leveled with the horizontal correction height; if the light color of the first indicator light 509 is green from the beginning, the height of the first laser emitting head 507 does not need to be adjusted.

[0056] When the height of the first laser emitter 507 is adjusted, the experimenter then observes the color of the light of the second indicator light 601, if the color of the light of the second indicator light 601 is yellow, at this time, it indicates that the second laser emitter 508 emits laser to the first sensing sheet 504, at this time, it indicates that the height of the second laser emitter 508 is higher than the horizontal correction height, at this time, the experimenter needs to press the down button of the fourth adjusting button 307, so that the second electric telescopic rod 408 is retracted, so that the second laser emitter 508 is slowly lowered by the second electric telescopic rod 408, and in the process, the experimenter needs to observe the light of the second indicator light 601, when the second indicator light 601 emits green light, it indicates that the laser emitted by the second laser emitter 508 has irradiated the second sensing sheet 505, at this time, it can be indicated that the height of the second laser emitter 508 has been leveled with the horizontal correction height, if the color of the light of the second indicator light 601 is red, at this time, it indicates that the second laser emitter 508 emits laser to the third sensing sheet 506, at this time, it indicates that the height of the second laser emitter 508 is lower than the horizontal correction height, at this time, the experimenter needs to press the up button of the fourth adjusting button 307, so that the second electric telescopic rod 408 is elongated, so that the second laser emitter 508 is slowly raised by the second electric telescopic rod 408, and in the process, the experimenter needs to observe the light of the second indicator light 601, when the second indicator light 601 emits green light, it indicates that the laser emitted by the second laser emitter 508 has irradiated the second sensing sheet 505, at this time, it can be indicated that the height of the second laser emitter 508 has been leveled with the horizontal correction height, if the color of the light of the second indicator light 601 is green from the beginning, the height of the second laser emitter 508 does not need to be adjusted.

[0057] In summary, when the light of the first indicator light 509 and the second indicator light 601 are both green, at this time, it can be indicated that the support plate 101 has been in an absolutely horizontal state, at this time, the test spring 205 has been in a vertical state, the regulation principle of the horizontal adjusting mechanism is simple, the reliability is extremely high, the support plate 101 can be adjusted to an absolutely horizontal state, there is no human observation error, and the reliability of the test data can be greatly improved.

[0058] Another aspect of the present application discloses a use method of a spring oscillator experimental equipment, which is applied to any one of the spring oscillator experimental equipment, and includes the following steps:

[0059] The test spring is hung with the hook, the iron column is hung with the test spring, and the weight is hung with the iron column;

[0060] N kilograms of weights are placed on the weight hook, and the weights are locked on the weight hook by the rubber plug;

[0061] Press the first adjusting button, so that the stepper motor drives the transparent cylinder to move up and down until the three wires are combined, and record the first reading of the bottom end of the test spring on the millimeter ruler;

[0062] Add N+1 kg weight to the weight hanger, and lock the weight on the weight hanger through the rubber plug;

[0063] Press the first adjusting button, so that the stepper motor drives the transparent cylinder to move up and down until the three wires are combined, and record the first reading of the bottom end of the test spring on the millimeter ruler;

[0064] Repeat the above steps S times;

[0065] The spring elongation △x corresponding to the weight increment △m is obtained by using the difference method, and the stiffness coefficient k of the spring is obtained according to Hooke's law.

[0066] The above is based on the ideal embodiment of the application, which is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which are within the scope of the application. Therefore, the protection scope of the patent should be subject to the appended claims.

Claims

1. A spring oscillator experimental device, characterized in that: The experimental equipment includes a support plate, a column is provided on the top of the support plate, a cross bar is provided on the top of the column, a first bearing seat is installed on the cross bar, a second bearing seat is installed on the support plate, a threaded screw is rotatably connected between the first bearing seat and the second bearing seat, a stepper motor is fixedly installed on the bottom of the support plate, and the output end of the stepper motor is fixedly connected to one end of the threaded screw; A sliding block is slidably connected to the threaded screw, a mounting plate is fixedly connected to the sliding block, a transparent cylinder is fixedly mounted on the mounting plate, a first marking line is provided on the transparent cylinder, a through hole is also provided on the mounting plate, a hook is provided on the cross bar, the hook is hung with one end of the test spring, the other end of the test spring is hung with one end of the iron column, the other end of the iron column is hung with the weight hanger, a second marking line is provided on the iron column, the weight hanger is used to hang the weight, and a rubber plug is provided on the weight hanger, and the rubber plug is used to fix the weight; A millimeter ruler is provided on the column; A support plate is provided on the column, an electromagnetic coil is fixedly mounted on the support plate, and an output end of the electromagnetic coil is connected to a counter; A guide rail is provided on the column, and a guide block is provided on the sliding block. The guide block can be embedded in the guide rail, so as to guide and limit the sliding block through the guide rail and the guide block; A horizontal adjustment mechanism is provided at the bottom of the support plate, and the horizontal adjustment mechanism includes a first signal transmitting block, a second signal transmitting block, and a signal receiving column, and the first signal transmitting block, the second signal transmitting block, and the signal receiving column are fixedly installed at the bottom of the support plate at a preset interval, the bottom end of the signal receiving column is connected to the support rod, the bottom end of the first signal transmitting block is connected to the first electric telescopic rod, and the bottom end of the second signal transmitting block is connected to the second electric telescopic rod; The signal receiving column is provided with a signal receiving strip, and the signal receiving strip is respectively provided with a first groove, a second groove and a third groove along the length direction, and the first groove is provided with a first sensing sheet, the second groove is provided with a second sensing sheet, and the third groove is provided with a third sensing sheet; The first signal transmitting block is provided with a first laser transmitting head, and the second signal transmitting block is provided with a second laser transmitting head; lasers emitted by the first laser transmitting head and the second laser transmitting head can both irradiate the signal receiving bar.

2. A spring oscillator experimental device according to claim 1, characterized in that: A first indicator light and a second indicator light are provided on the support plate. The first indicator light is communicatively connected to the first laser emission head, and the second indicator light is communicatively connected to the second laser emission head. Both the first indicator light and the second indicator light can emit lights of three different colors.

3. The spring oscillator experimental device according to claim 2, characterized in that: When the laser emitted by the first laser emitting head irradiates the first sensing plate, the first indicator light emits a first color light; when the laser emitted by the first laser emitting head irradiates the second sensing plate, the first indicator light emits a second color light; when the laser emitted by the first laser emitting head irradiates the third sensing plate, the first indicator light emits a third color light; when the laser emitted by the second laser emitting head irradiates the first sensing plate, the second indicator light emits a first color light; when the laser emitted by the second laser emitting head irradiates the second sensing plate, the second indicator light emits a second color light; when the laser emitted by the second laser emitting head irradiates the third sensing plate, the second indicator light emits a third color light.

4. The spring oscillator experimental device according to claim 3, characterized in that: The experimental equipment also includes a wireless controller, which is provided with a first adjustment button, a second adjustment button, a third adjustment button and a fourth adjustment button. The first adjustment button is used to adjust the direction of the stepper motor, the second adjustment button is used to adjust the speed of the stepper motor, the third adjustment button is used to adjust the telescopic height of the first electric telescopic rod, and the fourth adjustment button is used to adjust the telescopic height of the second electric telescopic rod.

5. A method for using a spring oscillator experimental device, applied to a spring oscillator experimental device according to any one of claims 1 to 4, characterized in that: The following steps are involved: Hang the test spring with the hook, hang the iron column with the test spring, and hang the weight with the iron column; Place an N-gram weight on the weight hanger and lock the weight on the weight hanger with a rubber plug; Press the first adjustment button to make the stepper motor drive the transparent cylinder to move up and down until the three lines converge, and record the first reading of the bottom end of the test spring on the millimeter ruler; Add N+1 gram weight to the weight hanger and lock the weight to the weight hanger with the rubber plug; Press the first adjustment button to make the stepper motor drive the transparent cylinder to move up and down, so that the three lines are aligned again, and record the second reading of the bottom end of the test spring on the millimeter ruler; Repeat the above steps S times; wherein the S times is 5 times; The difference method is used to calculate the spring extension △x corresponding to the weight increment △m, and the spring constant k is calculated according to Hooke's law.

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