CN109243262A - Analog machine is used in a kind of teaching of junior physics elastic force - Google Patents
Analog machine is used in a kind of teaching of junior physics elastic force Download PDFInfo
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- CN109243262A CN109243262A CN201811262924.3A CN201811262924A CN109243262A CN 109243262 A CN109243262 A CN 109243262A CN 201811262924 A CN201811262924 A CN 201811262924A CN 109243262 A CN109243262 A CN 109243262A
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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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- 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
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The present invention relates to teaching equipment technical fields, and disclose a kind of junior physics elastic force teaching analog machine, including vertical plate, the bottom of vertical plate is fixedly connected with transverse bottom plate, side plate is fixedly connected at left and right sides of vertical plate, the positive two sides of vertical plate are provided with vertical area, the top of two vertical areas has been bolted to connection rectangular jig ring, the inner sidewall of two rectangular jig rings is bonded with fixture air bag, two fixture air bags are bonded with friction plate in the side far from rectangular jig ring, and two saccate air guide ports of folder are fixedly connected to gas-guide tube.Junior physics elastic force teaching analog machine, dynamometry is attached so as to the weight beam for different length, teacher or student simultaneously test different weight beams for same pulling force, to obtain the spring constant of different weight beams, reduce the error obtained a result.
Description
Technical field
The present invention relates to teaching equipment technical field, analog machine is used in specially a kind of junior physics elastic force teaching.
Background technique
In junior middle school physics teaching, the chapters and sections in relation to weight beam, teacher is typically all that weight beam is used to pull
Counterweight weighs to counterweight, the relevant teaching of the receiving for allowing student to be more easier, but this teaching method is more single, different
Weight beam pulling dynamometry is carried out to the counterweight of identical weight, may obtain different value of thrust, there is biggish pulling force to miss
Difference, and few equipment for carrying out test teaching for different weight beams in the teaching of junior physics elastic force, show that spring is surveyed
Spring force coefficient in power meter, it is therefore desirable to a kind of junior middle school physics teaching analog machine, to different weight beams into
Row tensile test show that pulling force distance, the corresponding pull distance that different value of thrust use obtain the bullet of different weight beams
Spring coefficient, the interest of enhancing student's study, improves the learning efficiency of student.
Summary of the invention
Solve the problems, such as few elastic force experiment test equipments used for student in the teaching of junior physics elastic force.
To achieve the above object, the invention provides the following technical scheme: a kind of junior physics elastic force, which is imparted knowledge to students, uses analog machine,
Including vertical plate, the bottom of the vertical plate is fixedly connected with transverse bottom plate, and side plate, vertical plate are fixedly connected at left and right sides of vertical plate
Positive two sides be provided with vertical area, the top of two vertical areas has been bolted to connection rectangular jig ring, two
The inner sidewall of rectangular jig ring is bonded with fixture air bag, and two fixture air bags are bonded in the side far from rectangular jig ring and rub
Pad, two saccate air guide ports of folder are fixedly connected to gas-guide tube, and the end of two gas-guide tubes extends through corresponding
The inner sidewall of rectangular jig ring and the outside for extending to corresponding rectangular jig ring, it is fixed between the end of two gas-guide tubes to connect
It is connected to threeway feedthrough, two gas-guide tubes are fixedly connected to switch air valve in corresponding rectangular jig ring exterior portion；
The front of two side plates has been bolted to connection vertical vertical tube, and the top of two vertical vertical tubes passes through spiral shell
Bolt is fixedly connected with micromotor, and the output shaft of two micromotors runs through the top of corresponding vertical vertical tube and extends to phase
Corresponding vertical vertical tube obtains inside, and the end of two micromotors passes through shaft coupling in the inside of corresponding vertical vertical tube
It is fixedly connected with miniature screw rod, two miniature screw rods are living by bearing base respectively in one end far from corresponding micromotor
The inside bottom for being connected to corresponding vertical vertical tube is moved, ball nut is threaded on two miniature screw rods, two hang down
The opposite side of upright barrel offers Vertical movements slot, and the inside of two Vertical movements slots is connected with Vertical movements
Block, the opposite side of two Vertical movements blocks pass through link block and are fixedly connected in corresponding ball nut, and two vertical living
Be fixedly connected between the opposite side of motion block and be transversely mounted sheet, vertical plate front the left and right sides with the junction of vertical vertical tube
It is provided with main scale mark, is transversely mounted at left and right sides of the upper surface of sheet and is fixedly connected to master corresponding with main scale mark
Pointer is provided with subsidiary scale mark on two vertical areas, is transversely mounted in sheet and is provided with HeiFin mechanism, transverse bottom plate
Upper surface on the left of be provided with display control panel.
Preferably, the HeiFin mechanism includes miniature bearing, normal thread bar, silk braid, lantern ring, movable through-hole, hangs down
Straight extension rod, mounting blocks, tension sensor and auxiliary pointer, are transversely mounted the lower surface two sides company of being screwed of sheet
It is connected to miniature bearing, the bearing inner race of two miniature bearings is fixed and is plugged with normal thread bar, on two normal thread bars
Screw thread is interspersed with silk braid, and fixing sleeve is connected to lantern ring on two silk braids, and the upper surface for being transversely mounted sheet opens up that there are four activities
Through-hole, four movable through-holes are divided into two groups, and the movable through-holes of two of every group are respectively symmetrically distributed in the two sides of miniature bearing, and two
The upper surface two sides of lantern ring are fixedly connected to that through-hole inner diameter size is compatible extends vertically bar with activity, positioned at the same side
Two extend vertically bar and extend through the inside of corresponding one group of activity through-hole and extend to the top for being transversely mounted sheet, position
Mounting blocks are fixedly connected between two tops for extending vertically bar of the same side, the top center position of two mounting blocks is equal
It is screwed and tension sensor is installed, two opposite side tops of mounting blocks are fixedly connected with and subsidiary scale mark phase
Corresponding auxiliary pointer.
Preferably, the connection relationship between the display control panel and micromotor and tension sensor is electrically to connect
It connects, control panel can control the switch and operating status of micromotor and tension sensor, and display control panel can be shown
Value of thrust suffered by two tension sensors, tension sensor use ZHBM-102 Minitype tension sensor, tension sensor
Maximum pull value range be 20 newton, micromotor uses revolving speed for the miniature low speed clockwise and anticlockwise motor of 10r/min.
Preferably, the minimum unit value of the main scale mark and subsidiary scale mark is a millimeter unit.
Preferably, the Liang Ge HeiFin mechanism being transversely mounted in sheet is corresponding with two vertical areas respectively, and two
A HeiFin mechanism is located at the underface of two rectangular jig rings.
Preferably, the cross sectional shape of the rectangular jig ring is rectangular rectangle, and presss from both sides saccate shape and rectangular jig
Ring inner sidewall shape is similar, and fixture air bag is bonded completely with the inner sidewall of rectangular jig ring, and fixture air bag uses elastic rubber material
Matter is made, and pressing from both sides saccate sidewall thickness is four millimeters, and friction plate is strip, and each saccate inside of folder is bonded with
Four friction plates, friction plate use more coarse soft rubber material, and in pairs, two groups of friction plates divide four friction plates respectively
Cloth is pressing from both sides saccate inside front and back sides.
Compared with prior art:
(1), junior physics elastic force teaching analog machine by setting vertical plate, rectangular jig ring, fixture air bag, rubs
Pad, gas-guide tube, threeway feedthrough and switch air valve cooperate, and when the device is in use, will need weight beam to be used
Rectangular jig ring is interted in bottom, so that the top of weight beam is located at the inside of rectangular jig ring, then by threeway feedthrough
The external high-pressure aerated equipment of air inlet port, open ipsilateral switch air valve, then fixture air bag be inflated, so that fixture
Extruding clamping is carried out at the top of the weight beam that the inner side edge of air bag interts inside, so that the top of friction plate and weight beam
Portion surface carries out contact pressure, the friction pressure between at the top of fixture air bag and weight beam is increased, so that spring
Dynamometer carry out position fixation, using fixture air bag to carried out at the top of weight beam squeeze clamping mode relative to biography
The hardness clamping of system, has the advantages that clamp different shape and size of weight beams, while preventing from influencing to clamp determining
The top of position weight beam generates the case where damaging.
(2), junior physics elastic force teaching analog machine, by be arranged vertical vertical tube, micromotor, miniature screw rod,
Vertical movements block cooperates with sheet is transversely mounted, and when the device is in use, different weight beam length is different, by aobvious
Show that control panel control micromotor is started, the output shaft of micromotor is revolved by shaft coupling band actuating miniature screw rod
Turn, miniature screw rod drives the activity of ball nut progress height and position, and ball nut drives Vertical movements block to exist by link block
The inside carry out activity of Vertical movements slot, and two Vertical movements blocks drive be transversely mounted on sheet progress height and position simultaneously
It adjusts, is attached dynamometry so as to the weight beam for different length, allow teacher or student simultaneously to not
Same weight beam is tested for same pulling force, to obtain the spring constant of different weight beams, improves student's
Learn enjoyment, so that student is more easier to receive and understand.
(3), junior physics elastic force teaching analog machine carries out weight beam by setting HeiFin mechanism
Hook pulled, normal thread bar is rotated, so that normal thread bar drives corresponding silk braid carry out activity, silk
Set drives the lantern ring carry out activity in outside, and lantern ring acts on corresponding two and extends vertically bar to mounting blocks progress height position
The adjusting set so that the hook on the hook and weight beam of the tension sensor on mounting blocks is connected with each other, then passes through
Fine adjustment of vertical micro-adjusting mechanism docks the connection between weight beam, reduces HeiFin mechanism to greatest extent and surveys to spring
The initial tensile force of power meter influences, and reduces tension sensor to the error of weight beam pulling force, obtains a result to minimize
Error.
(4), junior physics elastic force teaching analog machine, passes through setting main scale mark and subsidiary scale mark phase interworking
It closes, record observation is carried out to the initial position and experimental site that are transversely mounted sheet and tension sensor convenient for user, simultaneously
Owner pointer is written and read its corresponding numerical value with auxiliary pointer, reduces the data error of experimental record.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is HeiFin mechanism structure schematic diagram of the present invention；
Fig. 3 connects side schematic view with fixture air bag for rectangular jig ring of the present invention.
In figure: 1 vertical plate, 2 transverse bottom plates, 3 side plates, 4 vertical areas, 5 rectangular jig rings, 6 fixture air bags, 7 friction plates, 8 are led
Tracheae, 9 threeway feedthroughs, 10 switch air valves, 11 vertical vertical tubes, 12 micromotors, 13 miniature screw rods, 14 ball nuts, 15 are hung down
Straight loose slot, 16 Vertical movements blocks, 17 link blocks, 18 are transversely mounted sheet, 19 main scale marks, 20 owner pointers, 21 subscale marks
Line, 22 HeiFin mechanisms, 221 miniature bearings, 222 normal thread bars, 223 silk braids, 224 lantern rings, 225 movable through-holes, 226 are hung down
Straight extension rod, 227 mounting blocks, 228 tension sensors, 229 auxiliary pointers, 23 display control panels.
Specific embodiment
As shown in Figure 1-3, the present invention provides a kind of technical solution: a kind of junior physics elastic force teaching analog machine, packet
Vertical plate 1 is included, the bottom of vertical plate 1 is fixedly connected with transverse bottom plate 2, and the left and right sides of vertical plate 1 is fixedly connected to side plate 3, vertical plate 1
Positive two sides be provided with vertical area 4, the top of two vertical areas 4 has been bolted to connection rectangular jig ring 5, two
The inner sidewall of a rectangular jig ring 5 is bonded with fixture air bag 6, and two fixture air bags 6 are viscous in the side far from rectangular jig ring 5
It is connected to friction plate 7, the cross sectional shape of rectangular jig ring 5 is rectangular rectangle, and in the shape of fixture air bag 6 and rectangular jig ring 5
Sidewall shape is similar, and fixture air bag 6 is bonded completely with the inner sidewall of rectangular jig ring 5, and fixture air bag 6 uses elastomeric material
It is made, the sidewall thickness of fixture air bag 6 is four millimeters, and friction plate 7 is strip, and the inside of each fixture air bag 6 is bonded
There are four friction plate 7, friction plate 7 uses more coarse soft rubber material, four friction plates 7 in pairs, two groups of friction plates 7
It is respectively distributed to the inside front and back sides of fixture air bag 6.
The air guide port of two fixture air bags 6 is fixedly connected to gas-guide tube 8, and the end of two gas-guide tubes 8 extends through phase
The inner sidewall of corresponding rectangular jig ring 5 and the outside for extending to corresponding rectangular jig ring 5, the end of two gas-guide tubes 8
Between be fixedly connected with threeway feedthrough 9, threeway feedthrough 9 can be inflated fixture air bag 6 with external high-pressure aerated equipment,
Two gas-guide tubes 8 are fixedly connected to switch air valve 10 in corresponding 5 exterior portion of rectangular jig ring.
The front of two side plates 3 has been bolted to connection vertical vertical tube 11, and the top of two vertical vertical tubes 11 is equal
It is bolted to connection micromotor 12, the output shaft of two micromotors 12 runs through the top of corresponding vertical vertical tube 11
Portion and extend to corresponding vertical vertical tube 11 obtain inside, the end of two micromotors 12 is in corresponding vertical vertical tube 11
Inside pass through shaft coupling and be fixedly connected with miniature screw rod 13, two miniature screw rods 13 are far from corresponding micromotor 12
One end pass through the inside bottom that bearing base is movably connected in corresponding vertical vertical tube 11 respectively, on two miniature screw rods 13
It is threaded with ball nut 14, two opposite sides of vertical vertical tube 11 offer Vertical movements slot 15, and two vertical
The inside of loose slot 15 is connected with Vertical movements block 16, and two opposite sides of Vertical movements block 16 pass through link block
17 are fixedly connected in corresponding ball nut 14, and two Vertical movements blocks 16 are fixedly connected with lateral peace between opposite side
The front left and right sides of load plate 18, vertical plate 1 is provided with main scale mark 19 with the junction of vertical vertical tube 11, is transversely mounted piece
It is fixedly connected to owner pointer 20 corresponding with main scale mark 19 at left and right sides of the upper surface of plate 18, on two vertical areas 4
It is provided with subsidiary scale mark 21, is transversely mounted in sheet 18 and is provided with HeiFin mechanism 22, HeiFin mechanism 22 includes micro-
Profile shaft hold 221, normal thread bar 222, silk braid 223, lantern ring 224, movable through-hole 225, extend vertically bar 226, mounting blocks 227,
Tension sensor 228 and auxiliary pointer 229, be transversely mounted sheet 18 lower surface two sides be fixed by screws it is miniature
Bearing 221, the fixation of the bearing inner race of two miniature bearings 221 are plugged with normal thread bar 222, two normal thread bars 222
Upper equal screw thread is interspersed with silk braid 223, and fixing sleeve is connected to lantern ring 224 on two silk braids 223, is transversely mounted the upper surface of sheet 18
It opens up there are four movable through-hole 225, it is two groups that four movable through-holes 225, which are divided to, and the movable through-hole 225 of two of every group respectively symmetrically divides
In the two sides of miniature bearing 221, the upper surface two sides of two lantern rings 224 are fixedly connected to big with 225 internal diameter of movable through-hole cloth
It is small it is compatible extend vertically bar 226, extend vertically bar 226 positioned at two of the same side and extend through corresponding one group of activity
The inside of through-hole 225 simultaneously extends to the top for being transversely mounted sheet 18, and two positioned at the same side extend vertically the top of bar 226
Between be fixedly connected with mounting blocks 227, the top center position of two mounting blocks 227, which is screwed, is equipped with pulling force biography
Sensor 228, the hook being attached is provided in tension sensor 228 in itself, and the opposite side top of two mounting blocks 227 is solid
Surely auxiliary pointer 229 corresponding with subsidiary scale mark 21, the minimum unit of main scale mark 19 and subsidiary scale mark 21 are connected with
Value is a millimeter unit, and the Liang Ge HeiFin mechanism 22 being transversely mounted in sheet 18 is corresponding with two vertical areas 4 respectively, and two
A HeiFin mechanism 22 is located at the underface of two rectangular jig rings 5.
Display control panel 23, display control panel 23 and micromotor 12 are provided on the left of the upper surface of transverse bottom plate 2
Connection relationship between tension sensor 228 is to be electrically connected, and control panel 23 can control micromotor 12 and pulling force passes
The switch and operating status of sensor 228, display control panel 23 can show pulling force suffered by two tension sensors 228
Value, tension sensor 228 use ZHBM-102 Minitype tension sensor, and the maximum pull value range of tension sensor 228 is two
Ten newton, micromotor 12 use revolving speed for the miniature low speed clockwise and anticlockwise motor of 10r/min, and the present invention passes through tension sensor
The traditional counterweight of 228 replacements carries out pulling force, allows weight beam to carry out the different types of tensile test of multiple groups, draws simultaneously
The influence error of force snesor 228 itself is smaller, can reduce the error of test data.
The electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating current, and main controller can be meter
Calculation machine etc. plays the conventionally known equipment of control.
When the device is in use, it needs fixed weight beam that must first carry out rezero operation, spring to be used will be needed
Rectangular jig ring 5 is interted in dynamometer bottom, so that the top of weight beam is located at the inside of rectangular jig ring 5, then by three
The external high-pressure aerated equipment of air inlet port of logical feedthrough 9, opens ipsilateral switch air valve 10, then carries out to fixture air bag 6
Inflation is then shut off switch so that carrying out extruding clamping at the top of the weight beam that the inner side edge of fixture air bag 6 interts inside
Air valve 10 increases fixture air bag 6 and spring is surveyed so that the top surface of friction plate 7 and weight beam carries out contact pressure
Friction pressure between at the top of power meter surveys spring using fixture air bag 6 so that weight beam carries out the fixation of position
It carries out squeezing the mode of clamping at the top of power meter relative to traditional hardness clamping, has to different shape and size of spring dynamometry
The advantages of meter is clamped, while preventing the top for influencing clamping position weight beam from generating the case where damaging, in bullet
After being fixed at the top of spring dynamometer, different weight beam length is different, controls micro electric by display control panel 23
Machine 12 is started, and the output shaft of micromotor 12 is rotated by shaft coupling band actuating miniature screw rod 13, miniature 13 band of screw rod
Dynamic ball nut 14 carries out the activity of height and position, and ball nut 14 drives Vertical movements block 16 vertically living by link block 17
The inside carry out activity of dynamic slot 15, and two Vertical movements blocks 16 drive be transversely mounted on the progress height and position of sheet 18 simultaneously
It adjusts, is attached dynamometry so as to the weight beam for different length, allow teacher or student simultaneously to not
Same weight beam is tested for same pulling force, after being transversely mounted sheet 18 and being adjusted to the position adapted to, will be hung down
Straight thread bar 222 is rotated, so that normal thread bar 222 drives corresponding 223 carry out activity of silk braid, silk braid 223 is driven
The 224 carry out activity of lantern ring in outside, and lantern ring 224 acts on corresponding two and extends vertically bar 226 to the progress of mounting blocks 227
Adjusting on height and position, so that the hook on the hook and weight beam of the tension sensor 228 on mounting blocks 227 is mutual
Connection, then the connection between weight beam is docked by fine adjustment of vertical micro-adjusting mechanism 22, it reduces to greatest extent vertical micro-
Regulating mechanism 22 influences the initial tensile force of weight beam, reduces tension sensor 228 to the error of weight beam pulling force, from
And the error obtained a result is minimized, after equipment is adjusted, pointed by record owner pointer 20 and auxiliary pointer 229 just
Then beginning position controls micromotor 12 by display control panel 23 and is started, so that micromotor 12 is by a series of
Transmission mechanism drive be transversely mounted the activity of sheet 18, when different height to owner pointer 20 and auxiliary pointer 229 be directed toward position and
Value of thrust shown by weight beam is recorded, and there are also value of thrust suffered by tension sensor 228 to pass through display control
Panel 23 is read out, and the display numerical value of tension sensor 228 is pulling force suffered by weight beam, tension sensor
228 display numerical value and the degree of weight beam compare, and carry out the experiment of multiple groups, are then surveyed by the way that spring is calculated
The elastic coefficient of power meter.
Claims (6)
1. a kind of teaching of junior physics elastic force analog machine, including vertical plate (1), it is characterised in that: the bottom of the vertical plate (2)
It is fixedly connected with transverse bottom plate (2), is fixedly connected at left and right sides of vertical plate (1) side plate (3), the positive two sides of vertical plate (1)
It is provided with vertical area (4), the top of two vertical areas (4) has been bolted to connection rectangular jig ring (5), two squares
The inner sidewall of clamp ring (5) is bonded with fixture air bag (6), and two fixture air bags (6) are in the side far from rectangular jig ring (5)
While being bonded with friction plate (7), the air guide port of two fixture air bags (6) is fixedly connected to gas-guide tube (8), two gas-guide tubes (8)
End extend through the inner sidewall of corresponding rectangular jig ring (5) and extend to the outer of corresponding rectangular jig ring (5)
Side is fixedly connected with threeway feedthrough (9) between the end of two gas-guide tubes (8), and two gas-guide tubes (8) are pressed from both sides in corresponding rectangle
Tool ring (5) exterior portion is fixedly connected to switch air valve (10)；
The front of two side plates (3) has been bolted to connection vertical vertical tube (11), the top of two vertical vertical tubes (11)
It has been bolted to connection micromotor (12), the output shaft of two micromotors (12) runs through corresponding vertical vertical tube
(11) top simultaneously extends to corresponding vertical vertical tube (11) and obtains inside, and the end of two micromotors (12) is corresponding
The inside of vertical vertical tube (11) pass through shaft coupling and be fixedly connected with miniature screw rod (13), two miniature screw rods (13) are separate
One end of corresponding micromotor (12) passes through bearing base respectively and is movably connected in the interior of corresponding vertical vertical tube (11)
Side bottom is threaded with ball nut (14) on two miniature screw rods (13), the opposite side of two vertical vertical tubes (11)
It offering Vertical movements slot (15), the inside of two Vertical movements slots (15) is connected with Vertical movements block (16), and two
The opposite side of a Vertical movements block (16) passes through link block (17) and is fixedly connected in corresponding ball nut (14), and two
It is fixedly connected with and is transversely mounted sheet (18) between the opposite side of Vertical movements block (16), the front left and right sides of vertical plate (1)
Main scale mark (19) are provided with the junction of vertical vertical tube (11), are transversely mounted at left and right sides of the upper surface of sheet (18)
It is fixedly connected with owner pointer (20) corresponding with main scale mark (19), is provided with subsidiary scale mark on two vertical areas (4)
(21), it is transversely mounted on sheet (18) and is provided with HeiFin mechanism (22), be provided on the left of the upper surface of transverse bottom plate (2) aobvious
Show control panel (23).
2. a kind of junior physics elastic force teaching analog machine according to claim 1, it is characterised in that: described vertical micro-
Regulating mechanism (22) includes miniature bearing (221), normal thread bar (222), silk braid (223), lantern ring (224), movable through-hole
(225), bar (226), mounting blocks (227), tension sensor (228) and auxiliary pointer (229) are extended vertically, sheet is transversely mounted
(18) lower surface two sides have been fixed by screws miniature bearing (221), the bearing inner race of two miniature bearings (221)
Fixation is plugged with normal thread bar (222), and equal screw thread is interspersed with silk braid (223) on two normal thread bars (222), two silks
Fixing sleeve is connected to lantern ring (224) on set (223), and the upper surface for being transversely mounted sheet (18) opens up that there are four movable through-holes
(225), four movable through-holes (225) are divided into two groups, and the movable through-hole (225) of two of every group is respectively symmetrically distributed in miniature bearing
(221) two sides, the upper surface two sides of two lantern rings 9 (224) are fixedly connected to mutually fits with movable through-hole (225) inner diameter size
That matches extends vertically bar (226), and bar (226) is extended vertically positioned at two of the same side, and to extend through corresponding one group of activity logical
The inside in hole (225) simultaneously extends to the top for being transversely mounted sheet (18), and two positioned at the same side extend vertically bar (226)
It is fixedly connected between top mounting blocks (227), the top center position of two mounting blocks (227) is screwed installation
Have tension sensor (228), two opposite side tops of mounting blocks (227) are fixedly connected with opposite with subsidiary scale mark (21)
The auxiliary pointer (229) answered.
3. a kind of junior physics elastic force teaching analog machine according to claim 2, it is characterised in that: the display control
Connection relationship between panel (23) processed and micromotor (12) and tension sensor (228) is to be electrically connected, control panel
(23) switch and operating status of micromotor (12) and tension sensor (228) be can control, display control panel (23) can
To show value of thrust suffered by two tension sensors (228), tension sensor (228) is passed using ZHBM-102 miniature spring
The maximum pull value range of sensor, tension sensor (228) is 20 newton, and micromotor (12) uses revolving speed for 10r/min
Miniature low speed clockwise and anticlockwise motor.
4. a kind of junior physics elastic force teaching analog machine according to claim 1, it is characterised in that: the master calibration
The minimum unit value of line (19) and subsidiary scale mark (21) is a millimeter unit.
5. a kind of junior physics elastic force teaching analog machine according to claim 1, it is characterised in that: the laterally peace
Liang Ge HeiFin mechanism (22) on load plate (18) is corresponding with two vertical area (4) respectively, Liang Ge HeiFin mechanism
(22) it is located at the underface of two rectangular jig rings (5).
6. a kind of junior physics elastic force teaching analog machine according to claim 1, it is characterised in that: the rectangle folder
The cross sectional shape for having ring (5) is rectangular rectangle, and the shape of fixture air bag (6) is similar to rectangular jig ring (5) inner sidewall shape,
Fixture air bag (6) is bonded completely with the inner sidewall of rectangular jig ring (5), and fixture air bag (6) is made of elastomeric material, folder
The sidewall thickness for having air bag (6) is four millimeters, and friction plate (7) is strip, and the inside of each fixture air bag (6) is bonded with
Four friction plates (7), friction plate (7) use more coarse soft rubber material, and in pairs, two groups are rubbed four friction plates (7)
Pad (7) is respectively distributed to the inside front and back sides of fixture air bag (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262924.3A CN109243262A (en) | 2018-10-27 | 2018-10-27 | Analog machine is used in a kind of teaching of junior physics elastic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262924.3A CN109243262A (en) | 2018-10-27 | 2018-10-27 | Analog machine is used in a kind of teaching of junior physics elastic force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243262A true CN109243262A (en) | 2019-01-18 |
Family
ID=65078800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262924.3A Withdrawn CN109243262A (en) | 2018-10-27 | 2018-10-27 | Analog machine is used in a kind of teaching of junior physics elastic force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637300A (en) * | 2019-02-14 | 2019-04-16 | 邵思哲 | A kind of high school student's Physical Experiment tension tester |
-
2018
- 2018-10-27 CN CN201811262924.3A patent/CN109243262A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637300A (en) * | 2019-02-14 | 2019-04-16 | 邵思哲 | A kind of high school student's Physical Experiment tension tester |
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Application publication date: 20190118 |
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| WW01 | Invention patent application withdrawn after publication |