CN108806420A - Multi-functional dynamics experimental device - Google Patents
Multi-functional dynamics experimental device Download PDFInfo
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- CN108806420A CN108806420A CN201810702499.9A CN201810702499A CN108806420A CN 108806420 A CN108806420 A CN 108806420A CN 201810702499 A CN201810702499 A CN 201810702499A CN 108806420 A CN108806420 A CN 108806420A
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- pivoted arm
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Multi-functional dynamics experimental device disclosed by the invention includes pedestal, operation and control device, motor, pivoted arm and steel ball, and tension measurement module is provided on pivoted arm；Winding motor and tension measurement wheel are provided in tension measurement module, a bracing wire is fixed on reel, and bracing wire connects a connector around the tension measurement wheel after the stretching of tension measurement module；Pivoted arm upper surface is provided with scale；Pivoted arm upper surface is provided with the slot for being inserted into friction plate；Pivoted arm and shaft articulated connection, are provided with locking knob at articulated connection；The rear end of pivoted arm is vertically arranged with through-hole, is provided with photoelectric sensor on a side wall of the through-hole, is arranged on side wall corresponding with photoelectric sensor jagged；A piece transparent, plastic strip may pass through through-hole, and transparent, plastic strip is divided into several distance segments by black line.The present invention collects kinds of experiments and is installed on one, simple in structure, easy to operate and at low cost.
Description
Technical field
The present invention relates to a kind of multi-functional dynamics experimental devices.
Background technology
In physical teaching course, need to use a variety of mechanics demonstrating experiment devices, such as centripetal force demonstrator, acceleration of gravity
Measuring device, friction measurement device, tension measurement, object such as are weighed at the various instrument and equipments.Therefore, laboratory needs to be equipped with more
Instrument and equipment is planted, not only occupied space, but also buys the costly of more complete equipments.There is no a kind of collection kinds of experiments to fill at present
It is placed in one, dynamics experimental device simple in structure, easy to operate and at low cost.
Invention content
In view of the above shortcomings of the prior art, the present invention provides a kind of collection kinds of experiments to be installed on one, simple in structure,
Easy to operate and at low cost multi-functional dynamics experimental device.
The technical solution adopted by the present invention to solve the technical problems is：A kind of multi-functional dynamics experimental device, it includes
Pedestal, operation and control device, motor, pivoted arm and steel ball, the motor are set on the base, and motor is drivingly connected one and is vertically arranged
Shaft, pivoted arm is arranged in the upper end of the shaft, is provided with tension measurement module on the pivoted arm, on the operation and control device
It is provided with motor speed regulation button and motor start-stop button；
Winding motor and tension measurement wheel, the output end connection of the winding motor are provided in the tension measurement module
Reel, the tension measurement wheel are located at the rear of the reel, and a bracing wire is fixed on the reel, the bracing wire
A connector is connected after tension measurement module stretching around the tension measurement wheel, is provided on the steel ball and institute
State the corresponding tie point of connector；The value of thrust and electricity for showing tension measurement wheel are provided on the operation and control device
The display screen of machine rotating speed；
The pivoted arm upper surface is provided with scale；The pivoted arm upper surface is provided with the slot for being inserted into friction plate；
The pivoted arm and shaft articulated connection, are provided with locking knob at articulated connection；
The rear end of the pivoted arm is vertically arranged with through-hole, and photoelectric sensor is provided on a side wall of the through-hole,
It is arranged on side wall corresponding with the photoelectric sensor jagged；A piece transparent, plastic strip may pass through the through-hole, described transparent
Plastic tape is divided into several distance segments by the black line of spaced set；It is provided with for recording light on the operation and control device
Electric transducer detects the display screen of the interval time of two adjacent black lines.
Further, it is described for record photoelectric sensor detect two adjacent black lines interval time it is aobvious
Display screen includes digital table and the time display screen below digital table, and the number in the number table is the plastics
The label of the distance segment taken.
Further, it is provided with weighing pan in the tension measurement module, title is provided on the operation and control device
Weight display.
Further, the tension measurement wheel includes wheel body, mounting bracket and pulling force sensor, and the wheel body is set by shaft
It sets on mounting bracket, the rear end of the mounting bracket is fixedly connected with the pulling force sensor.
Further, the front end of the pedestal is provided with the body of rod obliquely, the operation and control device is fixed on described
On the body of rod.
Further, the connector is bolt, and the tie point is the threaded hole coordinated with the bolt；In the company
It is provided with arc-shaped through-hole on the bolt cap of connector.
The beneficial effects of the invention are as follows：It is integrated with centripetal force demonstration apparatus, friction measurement device, weighing device and
Acceleration of gravity etc. is installed on one, simple in structure, easy to operate and at low cost.
By cleverly arranging winding motor and tension measurement wheel, the tension measurement for measuring centripetal force and frictional force is realized
Device shares, moreover, pivoted arm, which devises, can be inserted into friction harden structure, can replace difference as needed when measuring frictional force rubs
Wipe the slide plate of power.
Pivoted arm rear end is provided with photoelectric sensor, transparent, plastic strip designed by the invention can be used for experimental calculation
Acceleration of gravity, is provided with each apart from short time display screen on operation and control device, can intuitively read and move the distance
The short time；This method is convenient and efficient relative to having using dotted timer measurement acceleration of gravity, and data are intuitively excellent
Point.
Be provided with weighing pan in tension measurement module, can the convenient quality for weighing steel ball and other wisps, carry
The high convenience of experimental implementation.
Pivoted arm and shaft articulated connection, pivoted arm can be placed vertically, using tension measurement module measure measure pulling force and
Object is weighed, and a tractor serves several purposes is realized.
Description of the drawings
Attached drawing 1 is the overall structure diagram of the present invention；
Attached drawing 2 is the enlarged drawing of part A in Fig. 1；
Attached drawing 3 is the side structure schematic view of the present invention；
Attached drawing 4 is the use state diagram that the present invention measures object gravity using tension measurement module；
Attached drawing 5 is the use state diagram that the present invention measures frictional force；
Attached drawing 6 is the pivoted arm schematic cross-sectional view of the present invention；
Attached drawing 7 is the use state diagram when present invention measures object acceleration of gravity；
Attached drawing 8 is the transparent, plastic strip schematic diagram of the present invention；
Attached drawing 9 is 41 scheme of installation of locking knob of the present invention；
Attached drawing 10 is the tension measurement modular structure schematic diagram of the present invention；
Attached drawing 11 is the tension measurement wheel scheme of installation of the present invention；
In figure, pedestal 1, bearing block 11, the body of rod 12, operation and control device 2, display screen 21, motor 3, pivoted arm 4, locking knob
41, earhole plate 42, threaded hole 421, scale 43, slot 44, groove 45, through-hole 46, notch 47, steel ball 5, shaft 6, drive pulley
61, bearing 62, connecting plate 63, tension measurement module 7, tension measurement wheel 71, reel 72, connector 73, S types hook 731, arc
Shape through-hole 732, mounting bracket 74, pulling force sensor 75, weighing pan 76, bracing wire 77, friction plate 8, photoelectric sensor 9, transparent plastic
Band 10, black line 101, distance segment 102.
Specific implementation mode
In order to better understand the present invention, embodiments of the present invention are explained in detail below in conjunction with the accompanying drawings.
As shown in attached drawing 1 to attached drawing 11, the present invention includes pedestal 1, operation and control device 2, motor 3, pivoted arm 4 and steel ball 5.Such as
Shown in Fig. 3, the motor 3 is vertically arranged on pedestal 1, and a shaft 6 is vertically arranged on pedestal 1, is set in the bottom of shaft 6
It is equipped with drive pulley 61, axis is arranged on pedestal 1 by being driven the drive pulley 61 of 6 lower section of band connection shaft in the output end of motor 3
The lower part of bearing 11, shaft 6 is arranged by the bearing 62 in bearing block 11 on pedestal 1.The upper end of the shaft 6 is hinged
Pivoted arm 4 is connected, by articulated connection, pivoted arm 4 can be rotated upwardly and downwardly centered on articulated connection point, as shown in fig. 1, hinged
Junction is provided with locking knob 41, as shown in figure 9, there are two earhole plates 42 in 4 lower end of pivoted arm, 6 upper end of shaft is provided with position
Connecting plate 63 between two earhole plates 42, locking knob 41 are a bolt, and screw thread is provided on an earhole plate 42
Hole 421, screw bolt passes earhole plate 42, connecting plate 63 through-hole after enter another earhole plate threaded hole 421 in, when
So, two earhole plates 42 are made of elastoplastic, can be deformed when screwing locking knob 41, and it is real to compress connecting plate 63
Now lock.Pivoted arm 4 can be fixed on some angle by locking knob 41.Tension measurement mould is provided on the pivoted arm 4
Block 7 is provided with the rate adaptation button of motor 3, the start-stop button of motor 3 and winding motor on the operation and control device 2
Positive and negative rotation button.The front end of the pedestal 1 is provided with the body of rod 12 obliquely, the operation and control device 2 is fixed on the bar
On body 12.Motor 3, winding motor, pulling force sensor 75, the sensor of electronic scale and photoelectric sensor 9 are electrically connected institute
Operation and control device 2 is stated, various buttons are provided on operation and control device 2, the action for operating motor 3, winding motor etc., and show
Show various numerical parameters.Rotation speed measuring module is provided on motor 3, rotation speed measuring module is the prior art, can count
The rotating speed of sensor measurement motor output shaft can also use pulse generation line simulation structure, rotation speed measuring module and operation
Controller 2 connects, and rotating speed is shown on operation and control device 2.For the display screen on operation and control device 2, a monoblock may be used
LCD liquid crystal displays, each numerical parameter subregion are shown.Or LED charactrons display screen is used, each parameter value is using one small
Display screen.
As shown in Figure 10, winding motor and tension measurement wheel 71, the winding electricity are provided in the tension measurement module 7
The output end of machine connects reel 72, and the tension measurement wheel 71 is located at the rear of the reel 72, and a bracing wire 77 is fixed
On the reel 72, the bracing wire 77 connects around the tension measurement wheel 71 after the tension measurement module 7 stretching
Hook may be used in the structure of one connector 73, connector 73, present invention preferably employs bolt arrangement as shown in Figure 10,
Tie point corresponding with the connector 73 is provided on the steel ball 5.If using the connector 73 of bolt arrangement, connect
Contact is exactly one threaded hole coordinated with bolt of setting on steel ball, and connector is directly screwed into spiral shell when being connect in this way with steel ball
Pit.
In order to facilitate hanging object when measuring object gravity, arc is provided on the bolt cap of the connector 73 of bolt arrangement
One end of S types hook 731 is passed through arc-shaped through-hole 732, other end hanging object by shape through-hole 732 when hanging object.Institute
State the display screen that 3 rotating speed of value of thrust and motor for showing tension measurement wheel 71 is provided on operation and control device.For drawing
The set-up mode of power measurement wheel 71 connects pulling force sensor 75 at 74 rear of mounting bracket of tension measurement wheel 71 as shown in figure 11.
Pulling force sensor 75 is connect with 2 signal of operation and control device.It should be noted that as shown in Figure 10, being located at tension measurement wheel 71
Upper and lower bracing wire 77 is parallel.Tension measurement wheel 71 is located at the surface of shaft 6, the circumference of steel ball when being measured as centripetal force
The central point of movement.Weighing pan 76,76 structure of weighing pan and existing electronic scale knot are provided in the tension measurement module 7
Structure is the same, and the weighing sensor of weighing pan 76 is connect with 2 signal of operation and control device.The output shaft end of winding motor is provided with rotating speed
Meter has on operation and control device 2 for measuring the point-to-point speed for being converted into bracing wire 77 after winding motor rotating speed and shows the speed
The display screen of degree.
In order to when measuring centripetal force, facilitate the radius of turn for measuring steel ball, 4 upper surface of the pivoted arm is provided with scale
43.4 upper surface of the pivoted arm is provided with the slot 44 for being inserted into friction plate 8.Specifically, as shown in fig. 6, being arranged on pivoted arm 4
Slot 44 is arranged in the left and right sides of groove 45 in groove 45.When being inserted into friction plate 8, it is inserted into from the front end of pivoted arm 4.
The rear end of the pivoted arm 4 is vertically arranged with through-hole 46, and photoelectric transfer is provided on a side wall of the through-hole 46
Sensor 9 is arranged jagged 47 on side wall corresponding with the photoelectric sensor 9.A piece transparent, plastic strip 10 may pass through described logical
Hole 46, the transparent, plastic strip 10 are divided into several distance segments 102 by the black line 101 of spaced set.It is controlled in the operation
The display screen for detecting the interval time of two adjacent black lines 101 for recording photoelectric sensor is provided on device 2 processed
21.It is provided with clock chip in operation and control device 2, the time of adjacent black line 101 is detected for recording photoelectric sensor 9.
The display screen 21 for detecting the interval time of two adjacent black lines for recording photoelectric sensor
In the right side of operation and control device, it includes digital table and the time display screen below digital table, the number table
In number be the plastic tape on distance segment label.As shown in fig. 1,1-12 totally 12 digital tables are depicted,
LED electronic displays (time display screen) are corresponded to below each number table.It is surveyed for pulling force in the left side of operation and control device 2
Pulling force display screen, the motor of amount wheel 71 pull drawstring movement velocity and weight display.
The application method of the present invention is as follows：
As centripetal force demonstration apparatus：As shown in figure 3, connector 73 is connect with steel ball 5, press winding motor reversion by
Button pulls out the bracing wire 77 of appropriate length, reads the length for pulling out bracing wire 77, and motor 3 is pressed after then setting the rotating speed of motor 3
Start button, pivoted arm 4 start to rotate.In the value of the display screen display tension measurement wheel of operation and control device 2.
As gravity measuring device：As shown in figure 4, pivoted arm 4 is adjusted to vertical state, in the arc-shaped through-hole of connector 73
S types hook 731 is hung up in 732, linking up with the 731 lower ends suspension weight to be measured in S types can be in the display screen of operation and control device 2
The value of thrust that upper display tension measurement wheel is subject to.
As friction measurement device：As shown in figure 5, the direction of adjustment pivoted arm 4, being inserted into the slot 44 of pivoted arm 4 needs
Then connector 73 is connected brake pad, at this moment presses the rotating forward button of winding motor, winding motor is at the uniform velocity by the friction plate 8 wanted
Bracing wire 77 is wound, the pulling force that tension measurement wheel is subject to is shown on the display screen of operation and control device 2.
As measurement acceleration of gravity device：As shown in fig. 7, the present apparatus is disposed close to table side position, by transparent modeling
Material strip 10 passes through through-hole 46, and fixes weight in the lower end of transparent, plastic strip 10, opens the switch of photoelectric sensor at this time, then
Unclamping transparent, plastic strip 10 makes its free-falling, two neighboring 101 elapsed time of black line of photosensors record (i.e. transparent
Plastic tape 10 moves the time of a distance segment 102), and include the display screen 21 in operation and control device 2 by time correspondence
Below digital table.
Claims (6)
1. a kind of multi-functional dynamics experimental device, it includes pedestal, operation and control device, motor, pivoted arm and steel ball, and the motor is set
It sets on pedestal, motor is drivingly connected a shaft being vertically arranged, and pivoted arm is arranged in the upper end of the shaft, on the pivoted arm
It is provided with tension measurement module, motor speed regulation button and motor start-stop button are provided on the operation and control device；
It is characterized in that：Be provided with winding motor and tension measurement wheel in the tension measurement module, the winding motor it is defeated
Outlet connects reel, and the tension measurement wheel is located at the rear of the reel, and a bracing wire is fixed on the reel,
The bracing wire connects a connector around the tension measurement wheel after tension measurement module stretching, is set on the steel ball
It is equipped with tie point corresponding with the connector；The pulling force for showing tension measurement wheel is provided on the operation and control device
The display screen of value and motor speed；
The pivoted arm upper surface is provided with scale；The pivoted arm upper surface is provided with the slot for being inserted into friction plate；
The pivoted arm and shaft articulated connection, are provided with locking knob at articulated connection；
The rear end of the pivoted arm is vertically arranged with through-hole, photoelectric sensor is provided on a side wall of the through-hole, with institute
State be arranged on the corresponding side wall of photoelectric sensor it is jagged；A piece transparent, plastic strip may pass through the through-hole, the transparent plastic
Band is divided into several distance segments by the black line of spaced set；It is provided on the operation and control device for recording photoelectric transfer
Sensor detects the display screen of the interval time of two adjacent black lines.
2. multi-functional dynamics experimental device as described in claim 1, which is characterized in that described for recording photoelectric sensor inspection
The display screen for measuring the interval time of two adjacent black lines includes digital table and the time below digital table
Display screen, it is described number table in number be the plastic tape on distance segment label.
3. multi-functional dynamics experimental device as described in claim 1, which is characterized in that be arranged in the tension measurement module
There is weighing pan, weight display is provided on the operation and control device.
4. multi-functional dynamics experimental device as described in claim 1, which is characterized in that the tension measurement wheel include wheel body,
Mounting bracket and pulling force sensor, the wheel body are arranged by shaft on mounting bracket, the rear end of the mounting bracket and the pulling force
Sensor is fixedly connected.
5. multi-functional dynamics experimental device as described in claim 1, which is characterized in that be provided with tiltedly in the front end of the pedestal
The upward body of rod, the operation and control device are fixed on the body of rod.
6. multi-functional dynamics experimental device as described in claim 1, which is characterized in that the connector is bolt, the company
Contact is the threaded hole coordinated with the bolt；
It is provided with arc-shaped through-hole on the bolt cap of the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810702499.9A CN108806420B (en) | 2018-06-30 | 2018-06-30 | Multifunctional mechanics experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810702499.9A CN108806420B (en) | 2018-06-30 | 2018-06-30 | Multifunctional mechanics experimental device |
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| Publication Number | Publication Date |
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| CN108806420A true CN108806420A (en) | 2018-11-13 |
| CN108806420B CN108806420B (en) | 2020-05-01 |
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| CN201810702499.9A Active CN108806420B (en) | 2018-06-30 | 2018-06-30 | Multifunctional mechanics experimental device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570951A (en) * | 2021-06-23 | 2021-10-29 | 兰州大学 | Multifunctional mechanics experimental device |
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| RU2052218C1 (en) * | 1990-12-19 | 1996-01-10 | Серпуховское высшее военное командно-инженерное училище ракетных войск им.Ленинского комсомола | Structural mechanics educational aid |
| US20070053219A1 (en) * | 2005-08-22 | 2007-03-08 | Taiwan Semiconductor Manufacturing Co., Ltd. | Micro-machinery memory device |
| CN202013680U (en) * | 2010-11-03 | 2011-10-19 | 徐忠岳 | Multifunctional centripetal force measuring rotary table |
| CN203134210U (en) * | 2012-12-16 | 2013-08-14 | 江苏艾迪生教育发展有限公司 | Stepless speed control rotation platform |
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| CN206774044U (en) * | 2016-11-11 | 2017-12-19 | 王众鑫 | A kind of new high school physicses dynamics experimental device |
| CN206774051U (en) * | 2017-04-07 | 2017-12-19 | 李正阳 | A kind of physical and mechanical experiment device |
| CN108039099A (en) * | 2017-12-29 | 2018-05-15 | 谢宗泰 | A kind of multi-functional physical mechanics experiment device for teaching |
| CN108091221A (en) * | 2018-01-09 | 2018-05-29 | 黑河学院 | The multi-functional mechanics apparatus for demonstrating of Physical Experiment |
| CN207558260U (en) * | 2017-09-20 | 2018-06-29 | 王艺琳 | A kind of physics teaching showing stand |
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2018
- 2018-06-30 CN CN201810702499.9A patent/CN108806420B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2052218C1 (en) * | 1990-12-19 | 1996-01-10 | Серпуховское высшее военное командно-инженерное училище ракетных войск им.Ленинского комсомола | Structural mechanics educational aid |
| US20070053219A1 (en) * | 2005-08-22 | 2007-03-08 | Taiwan Semiconductor Manufacturing Co., Ltd. | Micro-machinery memory device |
| CN202013680U (en) * | 2010-11-03 | 2011-10-19 | 徐忠岳 | Multifunctional centripetal force measuring rotary table |
| CN203134210U (en) * | 2012-12-16 | 2013-08-14 | 江苏艾迪生教育发展有限公司 | Stepless speed control rotation platform |
| CN205122035U (en) * | 2015-11-24 | 2016-03-30 | 赖艳清 | Centripetal force experiment teaching demonstration appearance |
| CN206774044U (en) * | 2016-11-11 | 2017-12-19 | 王众鑫 | A kind of new high school physicses dynamics experimental device |
| CN206774051U (en) * | 2017-04-07 | 2017-12-19 | 李正阳 | A kind of physical and mechanical experiment device |
| CN207558260U (en) * | 2017-09-20 | 2018-06-29 | 王艺琳 | A kind of physics teaching showing stand |
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| CN108091221A (en) * | 2018-01-09 | 2018-05-29 | 黑河学院 | The multi-functional mechanics apparatus for demonstrating of Physical Experiment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570951A (en) * | 2021-06-23 | 2021-10-29 | 兰州大学 | Multifunctional mechanics experimental device |
| CN113570951B (en) * | 2021-06-23 | 2023-08-08 | 兰州大学 | Multifunctional mechanics experimental device |
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| CN108806420B (en) | 2020-05-01 |
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