Friction force experiment science popularization device

Abstract

The utility model provides a friction force experiment science popularization device, and belongs to the technical field of friction force experiment science popularization. The friction force experiment science popularization device comprises a base, a supporting frame is integrally formed at the top of the base, a simulation mechanism is arranged at the top of the base and comprises a support, a friction belt and a connecting plate, the support is hinged to the top of the base through a hinge, and the support is sleeved with a conveying belt through a rotating roller. The friction belt is fixedly installed on the top of the transmission belt, and the connecting plate is arranged on the inner side of the supporting frame. According to the utility model, through the arrangement of the simulation mechanism, when the conveyor belt begins to operate, a user records data when the pulling force end of the dynamometer is pulled by the pull rope, so that the friction between articles with different roughness and an article to be tested is simulated; therefore, data generated when a single friction belt rubs can be conveniently and repeatedly measured, and the measurement result is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of friction experiment popular science technology, and particularly relates to a friction experiment popular science device. BACKGROUND

[0002] Friction refers to two objects that contact and extrude each other, when they have relative motion or the tendency of relative motion, a force that hinders the relative motion or the tendency of relative motion is generated on the contact surface, in order to explore the factors affecting the size of sliding friction, teachers often conduct friction experiment for popular science.

[0003] The existing device can only detect the rubbed article by the force meter when in use, the detection effect is relatively single, the friction force change between the article with different roughness and the detected article cannot be detected, the detection data is less, and the demonstration effect is greatly discounted. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a friction experiment popular science device which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides a friction experiment popular science device, including base, the top of base is integrally formed with support frame, the top of base is provided with simulation mechanism, the simulation mechanism includes,

[0007] Support, the support is hinged on the top of base through hinge, the support is provided with conveying belt through rotating roller sleeve;

[0008] Friction belt, the friction belt is fixedly installed at the top of transmission belt;

[0009] Connecting plate, the connecting plate is arranged on the inner side of support frame, the top of connecting plate is fixedly installed with force meter, the force receiving end of force meter is fixedly installed with pull rope, the other end of pull rope is fixedly installed with bearing box, the bearing box is located at the top of conveying belt, the inside of bearing box is provided with counterweight plate.

[0010] In a preferred scheme, the top of connecting plate is fixedly installed with fixing frame, the inside of fixing frame is rotatably sleeved with pulley, the surface of pulley is sleeved with pull rope, the friction belt is provided with a plurality of, the roughness of a plurality of friction belts gradually increases.

[0011] In a preferred scheme, the inner wall of support is fixedly installed with first motor, the output end of first motor and the surface of left rotating roller are fixedly sleeved with rotating wheel, the output end of first motor and left rotating roller are sleeved with transmission belt through rotating wheel.

[0012] In a preferred scheme, the top of the base is provided with an inclination mechanism, the inclination mechanism comprising a lead screw, the lead screw being rotatably mounted on the inner wall of the support frame, and the lead screw being threadedly sleeved in the interior of the connecting plate.

[0013] In a preferred scheme, the inner wall of the support frame is fixedly mounted with a limiting rod, and the limiting rod is slidingly sleeved in the interior of the connecting plate.

[0014] In a preferred scheme, the top of the support frame is fixedly mounted with an inclination plate, and the right side of the connecting plate is fixedly mounted with a driving plate, and the driving plate is slidingly sleeved in the interior of the inclination plate.

[0015] In a preferred scheme, the side of the inclination plate away from the conveying belt is provided with a straight slot, the side of the driving plate away from the conveying belt is fixedly mounted with a driving shaft, the driving shaft is slidingly sleeved in the interior of the straight slot, and the front side of the driving shaft is fixedly mounted with a limiting disc.

[0016] In a preferred scheme, the interior of the support frame is fixedly mounted with a second motor, and the output end of the second motor is fixedly connected with the bottom of the lead screw.

[0017] The friction force experiment popular science device has the beneficial effects that:

[0018] 1. When the conveying belt starts to run, the user records the data when pulling the rope to pull the force gauge, so as to simulate the situation when different roughness objects and measured objects rub, and the single friction belt can be conveniently repeatedly measured when rubbing, and the measurement result is more accurate.

[0019] 2. When the lead screw rotates, the connecting plate moves upward, thereby driving the driving plate and the driving shaft to move upward, so that the driving shaft extrudes the inner wall of the straight slot, and the right side of the support frame is hingedly connected with the base, so that the connecting plate drives the support frame and the conveying belt to be inclined, thereby simulating the friction force of the bearing box and the friction belt in the inclined state, and further improving the scene diversification of the friction force experiment. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Fig. 1 is a schematic diagram of the overall structure provided by the embodiment of the present application;

[0022] Fig. 2 is a partial cross-sectional view of the support frame from the left side provided by the embodiment of the present application;

[0023] Fig. 3 is an exploded view of the counterweight plate and the bearing box provided by the embodiment of the present application;

[0024] Fig. 4 is a partial cross-sectional view of the inclined plate from the top provided by the embodiment of the present application.

[0025] In the figure: 1, base; 2, support frame; 301, support; 302, conveyor belt; 303, friction belt; 304, connecting plate; 305, force gauge; 306, pull rope; 307, bearing box; 308, counterweight plate; 309, fixing frame; 310, pulley; 311, first motor; 312, transmission belt; 401, lead screw; 402, limiting rod; 403, inclined plate; 404, driving plate; 405, straight slot; 406, driving shaft; 407, limiting disc; 408, second motor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Reference Figs. 1-4The utility model provides a technical scheme: a friction force experiment popular science device, the top of base 1 is integrally formed with support frame 2, the top of base 1 is provided with simulation mechanism, and the simulation mechanism includes support 301, friction belt 303 and connecting plate 304, support 301 is hinged on the top of base 1, and the transmission belt 302 is provided on support 301 through the rotating roller, the top of transmission belt 312 is fixedly installed with friction belt 303, the inner side of support frame 2 is provided with connecting plate 304, the top of connecting plate 304 is fixedly installed with the force meter 305, the force end of force meter 305 is fixedly installed with the pull rope 306, the other end of pull rope 306 is fixedly installed with the bearing box 307, and the bearing box 307 is located at the top of transmission belt 302, and the counterweight plate 308 is arranged in the bearing box 307, when transmission belt 302 starts to run, the simulation mechanism is set, drives friction belt 303 to move, and friction belt 303 is fixed on transmission belt 302 in the embedded mode, the height of the top of friction belt 303 is consistent with the height of the top of transmission belt 302, since the bearing box 307 is placed on the top of transmission belt 302, the friction between the bearing box 307 and the different roughness of multiple friction belts 303 is different, when the friction between the friction belt 303 of different roughness and the bearing box 307 occurs, the user records the data when pulling the force end of force meter 305 through pull rope 306, thereby simulating the situation when the different roughness articles and the measured articles rub, and since transmission belt 302 can move in one direction, the data when single friction belt 303 rubs can be conveniently repeatedly measured, the measurement result is more accurate, the number of counterweight plate 308 in bearing box 307 can be increased or reduced according to the situation, thereby the change of the friction of the measured article of different weights can be recorded and detected, and the measurement data is more diversified and comprehensive,

[0028] Referring to Figs. 1-4 The top of connecting plate 304 is fixedly installed with fixed frame 309, the inside of fixed frame 309 is rotatably sleeved with pulley 310, pull rope 306 is sleeved on the surface of pulley 310, friction belt 303 is provided with several, the roughness of several friction belts 303 gradually increases, and fixed frame 309 and pulley 310 are set, so that pull rope 306 is guided through the sliding cooperation of pulley 310.

[0029] Referring to Figs. 1-4 The inner wall of support 301 is fixedly installed with first motor 311, the output end of first motor 311 and the surface of left side rotating roller are fixedly sleeved with rotating wheel, and transmission belt 312 is sleeved with rotating wheel between the output end of first motor 311 and left side rotating roller, first motor 311 is set, and the rotating roller is driven to rotate through the cooperation of transmission belt 312 after the user starts first motor 311, thereby driving transmission belt 302 to move.

[0030] With reference to Figs. 1-4 The top of the base 1 is provided with an inclination mechanism, the inclination mechanism comprises a lead screw 401, the lead screw 401 is rotationally installed on the inner wall of the support frame 2, the lead screw 401 is threadedly sleeved in the inside of the connecting plate 304, the inner wall of the support frame 2 is fixedly installed with a limiting rod 402, the limiting rod 402 is slidingly sleeved in the inside of the connecting plate 304, the top of the support 301 is fixedly installed with an inclination plate 403, the right side of the connecting plate 304 is fixedly installed with a driving plate 404, the driving plate 404 is slidingly sleeved in the inside of the inclination plate 403, the side, away from the conveying belt 302, of the inclination plate 403 is provided with a straight slot 405, the side, away from the conveying belt 302, of the driving plate 404 is fixedly installed with a driving shaft 406, the driving shaft 406 is slidingly sleeved in the inside of the straight slot 405, the front side of the driving shaft 406 is fixedly installed with a limiting disc 407, by setting the inclination mechanism, when the lead screw 401 rotates, the connecting plate 304 moves upwards under the thread connection of the lead screw 401 and the connecting plate 304 and the limiting action of the limiting rod 402, so as to drive the driving plate 404 and the driving shaft 406 to move upwards, so that the driving shaft 406 extrudes the inner wall of the straight slot 405, since the right side of the support 301 is hingedly connected with the base 1, the connecting plate 304 drives the support 301 and the conveying belt 302 to incline, so as to simulate the friction force between the bearing box 307 and the friction belt 303 in the inclined state, and further improve the scene diversification of the friction force experiment.

[0031] With reference to Figs. 1-4 The inside of the support frame 2 is fixedly installed with a second motor 408, the output end of the second motor 408 is fixedly connected with the bottom of the lead screw 401, by setting the second motor 408, the user starts the second motor 408 to drive the lead screw 401 to rotate, so as to provide driving force for the rotation of the lead screw 401.

[0032] Specifically, the working process or working principle of the friction experiment popular science device is as follows: when in use, the user starts the first motor 311, drives the rotating roller to rotate through the cooperation of the transmission belt 312, drives the conveying belt 302 to move, drives the friction belt 303 to move when the conveying belt 302 starts to run, and the carrying box 307 is placed on the top of the conveying belt 302. The friction between the roughness of the plurality of friction belts 303 and the carrying box 307 is different. When the friction between the friction belt 303 with different roughness and the carrying box 307 occurs, the user records the data when the tension rope 306 pulls the tension meter 305, thereby simulating the friction between the different roughness objects and the measured objects. When the conveying belt 302 can move in one direction, the data of the single friction belt 303 can be conveniently measured repeatedly, and the measurement result is more accurate. When the friction force change data of the measured objects with different weights need to be detected, the number of the weight plates 308 in the carrying box 307 can be increased or reduced according to the situation. When the friction force in the inclined state needs to be detected, the user starts the second motor 408, drives the lead screw 401 to rotate, and drives the connecting plate 304 to move upward through the threaded connection of the lead screw 401 and the connecting plate 304 and the limiting action of the limiting rod 402, thereby driving the driving plate 404 and the driving shaft 406 to move upward, causing the driving shaft 406 to extrude the inner wall of the straight slot 405. Since the right side of the support 301 is hinged to the base 1, the connecting plate 304 drives the support 301 and the conveying belt 302 to be inclined.

Claims

1. A friction experiment popular science device, comprising a base (1), a support frame (2) is integrally formed at the top of the base (1), characterized in that: The top of the base (1) is provided with an analog mechanism, the analog mechanism comprises, Support (301), the support (301) is hinged on the top of the base (1) by hinge, the support (301) is provided with a conveyor belt (302) through the rotating roller sleeve, Friction belt (303), the friction belt (303) is fixedly installed on the top of the transmission belt (312); The connecting plate (304) is arranged on the inner side of the support frame (2), the top of the connecting plate (304) is fixedly installed with a force gauge (305), the force receiving end of the force gauge (305) is fixedly installed with a pull rope (306), the other end of the pull rope (306) is fixedly installed with a load bearing box (307), the load bearing box (307) is located on the top of the conveyor belt (302), the inside of the load bearing box (307) is provided with a counterweight plate (308); The top of the connecting plate (304) is fixedly installed with a fixed frame (309), the inside of the fixed frame (309) is rotatably sleeved with a pulley (310), the pull rope (306) is sleeved on the surface of the pulley (310), the friction belt (303) is provided with a plurality of, the roughness of a plurality of the friction belt (303) gradually increases; The inner wall of the support (301) is fixedly installed with a first motor (311), the output end of the first motor (311) and the surface of the left rotating roller are fixedly sleeved with a rotating wheel, the output end of the first motor (311) and the left rotating roller are sleeved with a transmission belt (312) through the rotating wheel.

2. The friction experiment popular science device according to claim 1, characterized in that, The top of the base (1) is provided with an inclination mechanism, the inclination mechanism comprises a lead screw (401), the lead screw (401) is rotatably installed on the inner wall of the support frame (2), the lead screw (401) is threadedly sleeved in the inside of the connecting plate (304).

3. The friction experiment popular science device according to claim 2, characterized in that, The inner wall of the support frame (2) is fixedly installed with a limiting rod (402), the limiting rod (402) is slidably sleeved in the inside of the connecting plate (304).

4. The friction experiment popular science device according to claim 3, characterized in that, The top of the support (301) is fixedly installed with an inclined plate (403), the right side of the connecting plate (304) is fixedly installed with a driving plate (404), the driving plate (404) is slidably sleeved in the inside of the inclined plate (403).

5. The friction experiment popular science device according to claim 4, characterized in that, The side of the inclined plate (403) away from the conveyor belt (302) is provided with a straight slot (405), the side of the driving plate (404) away from the conveyor belt (302) is fixedly installed with a driving shaft (406), the driving shaft (406) is slidably sleeved in the inside of the straight slot (405), the front side of the driving shaft (406) is fixedly installed with a limiting disc (407).

6. The friction experiment popular science device according to claim 5, characterized in that, The inside of the support frame (2) is fixedly installed with a second motor (408), the output end of the second motor (408) and the bottom of the lead screw (401) are fixedly connected.

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