CN206946783U

CN206946783U - A kind of friction force demonstration experiment instrument

Info

Publication number: CN206946783U
Application number: CN201720491093.1U
Authority: CN
Inventors: 闫昊飏
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2018-01-30
Anticipated expiration: 2027-05-04

Abstract

The utility model discloses a kind of friction force demonstration experiment instrument, including support base, the upper surface of the support base is provided with dovetail groove, the top of the support base is provided with experiment porch, the bottom of the experiment porch is provided with dovetail groove slide bar, and the top front and rear sides of the support base are mounted on buck plate.The friction force demonstration experiment instrument, dynamic weight beam can be such that slide bar is slided in chute, and casing slides on experiment porch, pulling force size can be observed by weight beam, weight piece can be twitched out of groove and come out, the relation of weight and frictional force can be measured, pull experiment porch that dovetail groove slide bar can be made to be slided in dovetail groove, experiment porch can be twitched out of support base the experiment porch for out carrying out changing surface different roughness, the relation of roughness and frictional force can be measured, it can need to carry out corresponding change according to using during experiment, realize the Multifunctional demonstration of frictional force different affecting factors.

Description

A kind of friction force demonstration experiment instrument

Technical field

Technical field of physical experiment is the utility model is related to, specially a kind of friction force demonstration experiment instrument.

Background technology

The inquiry experiment of friction effects factor is basic mechanical experiment common in junior physicses or even high school physicses, should Experiment generally carries out Demonstrating by teacher, and the key point of the experiment is to ensure that the uniform motion of object, uses dynamometer Frictional force suffered during object of which movement is measured, qualitative, quantitative analysis is then carried out according to the size of frictional force, then obtains shadow Several factors of frictional force are rung, common friction force demonstration experiment instrument, generally use weight beam measurement frictional force, use guide rail Motion instead of the motion of object, such as the patent of Patent No. 201220621566.2, including the data processor of substrate, rub The friction of wipe smooth plate, one group of different quality demonstrates block and is installed on the pulling force sensor, fixed pulley, digital display screen of vertical panel Form, although the advantages of structure is simple and direct, it is easy to manufacture, convenient experimental operation, strong demonstrating visual's property, demonstrating effect is not Substantially, function is simpler, it is impossible to carries out Multifunctional demonstration according to the different influence factor of frictional force, it is difficult to attract to learn on classroom Raw notice, stimulating students ' interestses.

Utility model content

The purpose of this utility model is to provide a kind of friction force demonstration experiment instrument, to solve to propose in above-mentioned background technology The problem of.

To achieve the above object, the utility model provides following technical scheme：A kind of friction force demonstration experiment instrument, including branch Seat is supportted, the upper surface of the support base is provided with dovetail groove, and the top of the support base is provided with experiment porch, the experiment porch Bottom dovetail groove slide bar is installed, the dovetail groove slide bar coordinates with dovetail groove and is connected, two before and after the top of the support base Side is mounted on buck plate, and the inner surface of the buck plate is provided with chute, and the top of the experiment porch is provided with casing, institute The front and rear sides for stating casing are mounted on slide bar, and the slide bar coordinates with chute and is connected, and the inner chamber installation of the casing is fluted, Weight piece is installed on the inside of the groove, the groove coordinates with weight piece and is connected, and drag hook is provided with the left of the casing, Weight beam is installed on the left of the drag hook.

Preferably, the lower surface of the support base is provided with magnetic sheet, and installation is angled on the right side of the bottom of the magnetic sheet Adjusting means, the angle regulator include support baseboard, and the top of the support baseboard is provided with outer barrel, the outer barrel Top is provided with inner cylinder, and the outer barrel is coordinated with inner cylinder by bolt and is connected, and the top of the inner cylinder is provided with magnetic block, described Magnetic block is connected with magnetic sheet magnetic.

Preferably, the bottom installation casing of the support baseboard.

Preferably, reinforcing bar, bottom and the support baseboard phase of the reinforcing bar are mounted at left and right sides of the outer barrel Even.

Preferably, handle is installed on the right side of the experiment porch.

Compared with prior art, the beneficial effects of the utility model are：The friction force demonstration experiment instrument, passes through chute and cunning Bar, which coordinates, to be connected, and pulls weight beam slide bar can be made to be slided in chute, and casing slides on experiment porch, Ke Yitong Weight beam observation pulling force size is crossed, is coordinated by weight piece with groove and is connected, weight piece can twitched out out of groove Come, the relation of weight and frictional force can be measured, coordinated by dovetail groove and dovetail groove slide bar and be connected, pulling experiment porch can be with Dovetail groove slide bar is slided in dovetail groove, experiment porch can be twitched out of support base and out carry out changing surface difference slightly The experiment porch of rugosity, can measure the relation of roughness and frictional force, can be needed during experiment to carry out according to use corresponding Change, realize the Multifunctional demonstration of frictional force different affecting factors, demonstrating effect is directly perceived, interesting strong, can meet to make With needs.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is weight beam structural representation of the present utility model；

Fig. 3 is angle regulator structural representation of the present utility model.

In figure：1st, experiment porch, 2, dovetail groove slide bar, 3, handle, 4, dovetail groove, 5, weight piece, 6, slide bar, 7, groove, 8th, casing, 9, buck plate, 10, chute, 11, support base, 12, angle regulator, 121, support baseboard, 122, casing, 123rd, reinforcing bar, 124, bolt, 125, inner cylinder, 126, magnetic block, 127, outer barrel, 13, magnetic sheet, 14, weight beam, 15, Drag hook.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of friction force demonstration experiment instrument, including support Seat 11, the upper surface of support base 11 is provided with dovetail groove 4, and the top of support base 11 is provided with experiment porch 1, the right side of experiment porch 1 Side is provided with handle 3, and used handle 3 can more easily pull experiment porch 1, and the bottom of experiment porch 1 is provided with dovetail groove Slide bar 2, dovetail groove slide bar 2 coordinate with dovetail groove 4 and are connected, and are coordinated by dovetail groove 4 with dovetail groove slide bar 2 and are connected, and pull experiment Platform 1 can be such that dovetail groove slide bar 2 is slided in dovetail groove 4, experiment porch 1 can be twitched out of support base 11 and out carried out The experiment porch 1 of surface different roughness is changed, the top front and rear sides of support base 11 are mounted on buck plate 9, buck plate 9 Inner surface is provided with chute 10, and the top of experiment porch 1 is provided with casing 8, and the front and rear sides of casing 8 are mounted on slide bar 6, sliding Bar 6 coordinates with chute 10 and is connected, and is coordinated by chute 10 with slide bar 6 and is connected, and pulls weight beam 14 to make slide bar 6 in cunning Slided in groove 10, and casing 8 is slided on experiment porch 1, and pulling force size can be observed by weight beam 14, casing 8 Inner chamber installation fluted 7, the inner side of groove 7 are provided with weight piece 5, and groove 7 coordinates with weight piece 5 and is connected, by weight piece 5 and Groove 7, which coordinates, to be connected, and weight piece 5 can be twitched out of groove 7 and come out, can measure the relation of weight and frictional force, casing 8 Left side drag hook 15 is installed, the left side of drag hook 15 is provided with weight beam 14, and the lower surface installation of support base 11 is magnetic Plate 13, the bottom right side of magnetic sheet 13 are provided with angle regulator 12, and angle regulator 12 includes support baseboard 121, branch The bottom installation casing 122 of bottom plate 121 is supportted, the stability of support baseboard 121 can be strengthened by casing 122, support bottom The top of plate 121 is provided with outer barrel 127, and the left and right sides of outer barrel 127 is mounted on reinforcing bar 123, the bottom of reinforcing bar 123 with Support baseboard 121 is connected, and can strengthen the stability of outer barrel 127 and support baseboard 121 by reinforcing bar 123, outer barrel 127 Top is provided with inner cylinder 125, and outer barrel 127 is coordinated with inner cylinder 125 by bolt 124 and is connected, and the top installation of inner cylinder 125 is magnetic Block 126, magnetic block 126 are connected with the magnetic of magnetic sheet 13, promote inner cylinder 125 to make inner cylinder 125 outside by loose bolts 124 Slided up and down in cylinder 127, the gradient of support base 11 can be adjusted, the relation of gradient and frictional force size can be test, when When not in use, it is connected by magnetic block 126 with the magnetic of magnetic sheet 13, magnetic block 126 can be pulled from magnetic sheet 13 separation Get off, be conveniently used cooperatively.

It is connected in use, being coordinated by chute 10 with slide bar 6, pulls weight beam 14 to make slide bar 6 in chute 10 Interior slip, and casing 8 is slided on experiment porch 1, and pulling force size can be observed by weight beam 14, passes through weight piece 5 Coordinate with groove 7 and be connected, weight piece 5 can be twitched out of groove 7 and come out, the relation of weight and frictional force can be measured, led to Cross dovetail groove 4 with the cooperation of dovetail groove slide bar 2 to be connected, pull experiment porch 1 that dovetail groove slide bar 2 can be made to be slided in dovetail groove 4, Experiment porch 1 can be twitched out of support base 11 and out carry out the experiment porch 1 for changing surface different roughness, can measured The relation of roughness and frictional force.

In description of the present utility model, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " in Portion ", " other end ", " on ", " side ", " top ", " interior ", " front portion ", " center ", the orientation of the instruction such as " both ends " or position close It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not It is interpreted as to limitation of the present utility model.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection ", " Gu Calmly ", the term such as " spinning " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally； Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be with It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite, for this area For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of friction force demonstration experiment instrument, including support base (11), it is characterised in that：The upper surface of the support base (11) is set There is dovetail groove (4), the top of the support base (11) is provided with experiment porch (1), and the bottom of the experiment porch (1) is provided with Dovetail groove slide bar (2), the dovetail groove slide bar (2) coordinates with dovetail groove (4) and is connected, two before and after the top of the support base (11) Side is mounted on buck plate (9), and the inner surface of the buck plate (9) is provided with chute (10), the top of the experiment porch (1) Casing (8) is installed, the front and rear sides of the casing (8) are mounted on slide bar (6), and the slide bar (6) coordinates with chute (10) It is connected, fluted (7) are installed in the inner chamber of the casing (8), and weight piece (5), the groove are provided with the inside of the groove (7) (7) coordinate with weight piece (5) and be connected, drag hook (15), the left side installation of the drag hook (15) are installed on the left of the casing (8) There is weight beam (14).

A kind of 2. friction force demonstration experiment instrument according to claim 1, it is characterised in that：The following table of the support base (11) Face is provided with magnetic sheet (13), and angle regulator (12) is provided with the right side of the bottom of the magnetic sheet (13), and the angle is adjusted Regulating device (12) includes support baseboard (121), and the top of the support baseboard (121) is provided with outer barrel (127), the outer barrel (127) top is provided with inner cylinder (125), and the outer barrel (127) is coordinated with inner cylinder (125) by bolt (124) and is connected, described The top of inner cylinder (125) is provided with magnetic block (126), and the magnetic block (126) is connected with magnetic sheet (13) magnetic.

A kind of 3. friction force demonstration experiment instrument according to claim 2, it is characterised in that：The support baseboard (121) Bottom installation casing (122).

A kind of 4. friction force demonstration experiment instrument according to claim 2, it is characterised in that：The left and right of the outer barrel (127) Both sides are mounted on reinforcing bar (123), and the bottom of the reinforcing bar (123) is connected with support baseboard (121).

A kind of 5. friction force demonstration experiment instrument according to claim 1, it is characterised in that：The right side of the experiment porch (1) Side is provided with handle (3).