CN107103831A - A kind of mechanical principle teaching experimental provision - Google Patents
A kind of mechanical principle teaching experimental provision Download PDFInfo
- Publication number
- CN107103831A CN107103831A CN201710521390.0A CN201710521390A CN107103831A CN 107103831 A CN107103831 A CN 107103831A CN 201710521390 A CN201710521390 A CN 201710521390A CN 107103831 A CN107103831 A CN 107103831A
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- China
- Prior art keywords
- connecting rod
- riser
- rotating device
- bottom plate
- experimental provision
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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
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Instructional Devices (AREA)
Abstract
The present invention relates to a kind of mechanical principle teaching experimental provision, including bottom plate, bottom plate is provided with starting stave parallel to each other and the second riser, and starting stave is connected in the front of the second riser and starting stave and the second riser by the way that the first connector and bottom plate are vertical；The lower left of second riser is provided with handwheel, handwheel is connected with driving shaft, driving shaft connects the first rotating device after passing through the second riser, first rotating device is connected with the second rotating device by the matching of intermediate transport part, second rotating device is connected with driven shaft, and driven shaft connects first connecting rod after passing through the second riser, is to be detachably connected between first connecting rod and second connecting rod, second connecting rod and third connecting rod, third connecting rod is hinged with sliding block, and sliding block is slidably connected with horizontal support piece；Horizontal support piece lower end connects vertical supporting bar, the top connection of vertical supporting bar and lowering or hoisting gear.The teaching efficiency of the present invention is significantly, practical, is worthy to be popularized.
Description
Technical field
The invention belongs to the mechanical demonstration teaching aid technical field of colleges and universities, and in particular to a kind of mechanical principle teaching is real
Experiment device.
Background technology
《Theory of mechanics》、《Fundamentals of Machine Design》It is the important professional basic course of ordinary higher learning school's mechanical speciality, is
Student learns the crucial course of mechanical speciality knowledge well, and its key learnt well is that basic theory will be combined with engineering is actual, but
Traditional classroom instruction biases toward theory, lectured mostly with teacher based on, the figure or PPT being aided with book are explained, difficult
To excite the learning interest of classmates, for the student of space imagination difference, knowwhy on teacher classroom is listened merely very
Indigestibility, feels dry as dust to the principle concept without actual verification of description, the interest of study is lost soon, and leads to
Experimental provision teaching demonstration is crossed, the characteristics of motion of each mechanism vividly can be intuitively shown, understands Students ' Learning unthinkable
Knowwhy becomes quick easy, the study enjoyment and enthusiasm of student is excited significantly, so as to effectively raise learning aid
Two-way efficiency.
On the teaching of four-bar mechanism, explained more than teacher using Hand drawing, although the school having employs teaching aid
Imparted knowledge to students, but teaching aid is single structure mostly, and function is only limitted to teacher and shows its planform and itself single biography
Emotionally condition, being related to the experimental provision of the four-bar mechanism of a variety of evolving forms does not almost have.
The content of the invention
In view of this, the invention provides a kind of mechanical principle teaching experimental provision, to solve existing theory teaching
In deficiency.
The technical scheme is that：Set on a kind of mechanical principle teaching experimental provision, including bottom plate, the bottom plate
There is a starting stave and the second riser parallel to each other, the starting stave is in the front of the second riser, and starting stave and second
Riser is connected by the way that multiple first connectors are vertical with bottom plate；
The lower left of second riser is provided with handwheel, and one end connection of the handwheel and driving shaft, driving shaft passes through second
Riser, and the first rotating device is connected with the other end of driving shaft, first rotating device passes through with the second rotating device
One end of the matching connection of intermediate transport part, the second rotating device and driven shaft is connected, and driven shaft passes through the second riser, and driven
The other end of axle is connected with first connecting rod, and the first connecting rod and second connecting rod are detachably connected, second connecting rod and third connecting rod
It is detachably connected, third connecting rod is hinged with sliding block, the sliding block is slidably connected in the T-slot on horizontal support piece；
The starting stave and the second connector are fastened by screw slidably connects vertical branch in the frame-shaped construction to be formed
Strut, the top connection horizontal support piece of the vertical supporting bar, the end of vertical supporting bar and the top of lowering or hoisting gear are connected.
Preferably, the first rotating device and the second rotating device are belt wheel, and intermediate transport part is flat rubber belting.
Preferably, it is provided with length on horizontal support piece, vertical supporting bar, first connecting rod, second connecting rod and third connecting rod
Graduation apparatus is spent, and is uniformly distributed with multiple mounting holes, can complete to connect by the tight fixed bolt in mounting hole or position.
Preferably, the lower surface of bottom plate is symmetrically arranged with roller and supporting studs.
Compared with prior art, a kind of mechanical principle teaching for providing of the present invention is with the beneficial effect of experimental provision：
1st, the present invention adjusts the structure that combination intuitively presents the various typical mechanisms of four-bar linkage by bar length
Feature, connected mode and operation characteristic, directly perceived, image and it is lively.
2nd, the present invention is comprehensive good, can meet bar length by regulation former according to the long principle of bar and the link position of most quarter butt
The bar length of four bars of reason recalls the type and evolution process of the typical four-bar mechanisms of crank rocker, double-crank, three kinds of double rocking lever, and
It can intuitively verify which operation characteristic is various typical mechanisms have respectively, dynamic intuitively for student viewing, understanding and is analyzed,
So as to attract the notice of student, the larger study for exciting student, the enjoyment and enthusiasm exploring, understand, absorbing knowledge,
The indigestible long principle of empty bar is vividly intuitively shown, student is very beneficial to the study of the knowwhy, reason
Solution and grasp, so as to obtain the effect got twice the result with half the effort.
3rd, driving of the invention is using manual, safety, energy-conserving and environment-protective, adds student and starts the sense of participation of experience, and because
Speed according to circumstances can be freely controlled for running speed, is easy to different degrees of classmate to observe and learn the motion feelings of each rod member
Condition.
4th, student is made more intuitively easily to learn, understand and grasp various typical four-bar mechanisms and its drill by the present invention
Operation characteristic, general principle and the design feature of structure changes, and can easy differentiation grasp its three kinds of typical mechanisms and possess
Heterogeneity and transport characteristicses, be that later PRACTICE OF DESIGN and practical application lay good theoretical foundation.
Brief description of the drawings
Fig. 1 is integrally-built front view of the invention；
Fig. 2 is left view of the invention；
Fig. 3 is top view of the invention.
Description of reference numerals：
1st, bottom plate；2nd, starting stave；3rd, vertical supporting bar；4th, horizontal support piece；5th, sliding block；6th, third connecting rod；7th, second
Connecting rod；8th, first connecting rod；9th, handwheel；10th, the first connector；11st, the first rotating device；12nd, intermediate transport part；13rd, the second rotation
Rotary device；14th, the second riser；15th, driving shaft；16th, driven shaft；17th, lowering or hoisting gear；18th, the second connector.
Embodiment
The invention provides a kind of mechanical principle teaching experimental provision, with reference to Fig. 1 structural representation, to this hair
It is bright to illustrate.
As shown in figure 1, a kind of mechanical principle teaching experimental provision that the present invention is provided, including bottom plate 1, the bottom plate 1
On be provided with the riser 14 of starting stave 2 and second parallel to each other, the starting stave 2 is in the front of the second riser 14, and
One riser 2 and the second riser 14 are connected by the way that multiple first connectors 10 are vertical with bottom plate 1；
The lower left of second riser 14 is provided with handwheel 9, and the handwheel 9 is connected with one end of driving shaft 15, driving shaft 15
Be connected with the first rotating device 11 through the second riser 14, and in the other end of driving shaft 15, first rotating device 11 with
Second rotating device 13 is matched by intermediate transport part 12 and connected, and the second rotating device 13 is connected with one end of driven shaft 16, from
Moving axis 16 passes through the second riser 14, and is connected with first connecting rod 8, the first connecting rod 8 and second in the other end of driven shaft 16
Connecting rod 7 is detachably connected, and second connecting rod 7 and third connecting rod 6 are detachably connected, and third connecting rod 6 is hinged with sliding block 5, the sliding block 5
It is slidably connected in the T-slot on horizontal support piece 4；
The connector 18 of starting stave 2 and second is fastened by screw to be slidably connected vertically in the frame-shaped construction to be formed
Support bar 3, the top connection horizontal support piece 4 of the vertical supporting bar 3, end and the lowering or hoisting gear 17 of vertical supporting bar 3
Top is connected.
Further, the first rotating device 11 and the second rotating device 13 are belt wheel, and intermediate transport part 12 is flat rubber belting.
Further, it is all provided with horizontal support piece 4, vertical supporting bar 3, first connecting rod 8, second connecting rod 7 and third connecting rod 6
Be equipped with length scale table, and be uniformly distributed with multiple mounting holes, can be completed by the tight fixed bolt in mounting hole connection or
Positioning.
Further, the lower surface of bottom plate 1 is symmetrically arranged with roller and supporting studs.
A kind of mechanical principle teaching experimental provision that the present invention is provided, in the case of being fixed in slide position, passes through hand
Wheel imparts power to driving shaft, and driving shaft drives the first rotating device to rotate while rotation, the first rotating device passes through flat
Band is transferred power on the second rotating device, while the second rotating device is rotated, and driven shaft is followed to be led on rotation, driven shaft
The first connecting rod for crossing key connection follows rotation, so as to drive second connecting rod and third connecting rod to occur corresponding motion.
The length of each rod member in the apparatus of the present can realize adjustment by changing the position of mounting hole of bolt,
Length scale is provided with each rod member, bar is long so as to be apparent from, and judges the relation between each bar length, according to
The relation of bar length, determines the structure type for the four-bar mechanism being adjusted after bar length, it is possible to installed in the mounting hole of bar
Drawing pen, is verified whether the forms of motion of each rod member meets theoretical rule by describing the movement locus of rod.
Slide position in the device of the present invention be can be set as not fixing, and the connecting bolt on third connecting rod is torn open
Remove, third connecting rod is taken away, and second connecting rod is connected with sliding block, then whole device can develop into slider-crank mechanism, lead to
The height of adjustment lowering or hoisting gear is crossed, position of the sliding block relative to the center of driven shaft of vertical supporting bar top setting can be changed
Put, develop into Offset slider-crank mechanism.
The present invention intuitively presents the design feature, connected mode and motion conditions of four-bar linkage, directly perceived, image
And it is lively.
The present invention is comprehensive good, can recall satisfactory typical case by adjusting the bar length of four bars according to bar length relation
Four-bar mechanism and differentiation structure, and its motion conditions is verified, watch and analyze for student, so that attract the notice of student,
Excite the study enjoyment of student, improve ability that student starts and ponder a problem, problem-solving ability, contribute to student to this
The study and grasp of knowwhy.
The driving of the present invention adds the sense of participation that student starts, and because operating using manual, safety, energy-conserving and environment-protective
Speed is slow, is easy to classmate to observe and learn the motion conditions of each rod member.
Student more easily learnt, understand and grasp various typical four-bar mechanisms by the present invention and its develop structure
Characteristic, principle, structure, and easy can have thorough grasp the characteristic of its different four-bar mechanism and develop into the mistake of crank block
Journey, is that later PRACTICE OF DESIGN and practical application lay good theoretical foundation, of the invention is practical, is worthy to be popularized.
Disclosed above is only the preferably specific embodiment of the present invention, and still, the embodiment of the present invention is not limited to this,
What any those skilled in the art can think change should all fall into protection scope of the present invention.
Claims (4)
1. it is provided with a kind of mechanical principle teaching experimental provision, it is characterised in that including bottom plate (1), the bottom plate (1) mutually
Parallel starting stave (2) and the second riser (14), the starting stave (2) is in the front of the second riser (14), and first
Riser (2) and the second riser (14) are connected by the way that multiple first connectors (10) are vertical with bottom plate (1)；
The lower left of second riser (14) is provided with handwheel (9), and the handwheel (9) is connected with one end of driving shaft (15), actively
Axle (15) passes through the second riser (14), and is connected with the first rotating device (11), described first in the other end of driving shaft (15)
Rotating device (11) and the second rotating device (13) be connecteds by intermediate transport part (12) matching, the second rotating device (13) and from
One end connection of moving axis (16), driven shaft (16) passes through the second riser (14), and is connected with the in the other end of driven shaft (16)
One connecting rod (8), the first connecting rod (8) and second connecting rod (7) are detachably connected, and second connecting rod (7) and third connecting rod (6) are removable
Connection is unloaded, third connecting rod (6) is hinged with sliding block (5), the sliding block (5) is slidably connected at the T-slot on horizontal support piece (4)
It is interior；
The starting stave (2) is fastened with the second connector (18) by screw to be slidably connected vertically in the frame-shaped construction to be formed
Support bar (3), the top connection horizontal support piece (4) of the vertical supporting bar (3), the end of vertical supporting bar (3) and lifting
The top connection of device (17).
2. a kind of mechanical principle teaching experimental provision according to claim 1, it is characterised in that first rotating dress
It is belt wheel that (11), which are put, with the second rotating device (13), and intermediate transport part (12) is flat rubber belting.
3. a kind of mechanical principle teaching experimental provision according to claim 1, it is characterised in that the horizontal support piece
(4) length scale table, is provided with vertical supporting bar (3), first connecting rod (8), second connecting rod (7) and third connecting rod (6), and
Multiple mounting holes are uniformly distributed with, can complete to connect by the tight fixed bolt in mounting hole or position.
4. a kind of mechanical principle teaching experimental provision according to claim 1, it is characterised in that the bottom plate (1)
Lower surface is symmetrically arranged with roller and supporting studs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521390.0A CN107103831A (en) | 2017-06-30 | 2017-06-30 | A kind of mechanical principle teaching experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521390.0A CN107103831A (en) | 2017-06-30 | 2017-06-30 | A kind of mechanical principle teaching experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107103831A true CN107103831A (en) | 2017-08-29 |
Family
ID=59664615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710521390.0A Pending CN107103831A (en) | 2017-06-30 | 2017-06-30 | A kind of mechanical principle teaching experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107103831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000384A (en) * | 2019-12-26 | 2020-04-14 | 山东科技大学 | Rotatable industrial design platform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103886803A (en) * | 2014-04-17 | 2014-06-25 | 重庆交通大学 | Integrated mechanical teaching aid |
| CN203966436U (en) * | 2014-04-29 | 2014-11-26 | 江汉大学 | A kind of four-bar linkage apparatus for demonstrating |
| CN104464494A (en) * | 2014-12-25 | 2015-03-25 | 北京理工大学 | Teaching analyzing instrument of planar linkage mechanism |
| CN205264232U (en) * | 2015-12-21 | 2016-05-25 | 重庆能源职业学院 | Manual formula link drive demonstration teaching aid |
-
2017
- 2017-06-30 CN CN201710521390.0A patent/CN107103831A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103886803A (en) * | 2014-04-17 | 2014-06-25 | 重庆交通大学 | Integrated mechanical teaching aid |
| CN203966436U (en) * | 2014-04-29 | 2014-11-26 | 江汉大学 | A kind of four-bar linkage apparatus for demonstrating |
| CN104464494A (en) * | 2014-12-25 | 2015-03-25 | 北京理工大学 | Teaching analyzing instrument of planar linkage mechanism |
| CN205264232U (en) * | 2015-12-21 | 2016-05-25 | 重庆能源职业学院 | Manual formula link drive demonstration teaching aid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000384A (en) * | 2019-12-26 | 2020-04-14 | 山东科技大学 | Rotatable industrial design platform |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |