CN203910156U - Teaching aid of cam and rod mechanisms - Google Patents

Teaching aid of cam and rod mechanisms Download PDF

Info

Publication number
CN203910156U
CN203910156U CN201420270579.9U CN201420270579U CN203910156U CN 203910156 U CN203910156 U CN 203910156U CN 201420270579 U CN201420270579 U CN 201420270579U CN 203910156 U CN203910156 U CN 203910156U
Authority
CN
China
Prior art keywords
crank
cam
hinged
rod
driven
Prior art date
Application number
CN201420270579.9U
Other languages
Chinese (zh)
Inventor
吴参
胡剑
周波
徐兵科
Original Assignee
杭州电子科技大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 杭州电子科技大学 filed Critical 杭州电子科技大学
Priority to CN201420270579.9U priority Critical patent/CN203910156U/en
Application granted granted Critical
Publication of CN203910156U publication Critical patent/CN203910156U/en

Links

Abstract

The utility model discloses a teaching aid of cam and rod mechanisms. Mechanical principle is highly abstract and many motion forms are difficult to imagine. Mechanical principle teaching aid models in a laboratory are not convenient for being carried to a classroom and are high in price. The teaching aid includes a demonstration box, a crank and rocker mechanism, a plane four-rod mechanism developing mechanism and a cam mechanism. The bottom part of the demonstrating box is provided with support legs while the top part is provided with a handle. The crank and rocker mechanism, the plane four-rod mechanism developing mechanism and the cam mechanism are all arranged on side faces of the demonstrating box and are supplied with power by a servo motor arranged in the demonstrating box. According to the utility model, typical mechanisms that may be referred to in a mechanical principle course are presented, so that students can learn easily through observing directly.

Description

A kind of cam and linkage mechanism are taught auxiliary instrument
Technical field
The utility model belongs to instruments used for education field, is specifically related to a kind of cam and linkage mechanism and teaches auxiliary instrument.
Background technology
Mechanical principle is the subject of a research institution and machine, is a special kind of skill core curriculum, plays important place mat effect for studying in depth of later mechanical subject.But so important core curriculum but allows many Techniques for Machinery Students rather have a headache.After investigation, find it is mainly that mechanical principle theoretical property is too strong, be difficult to the imagination for a lot of forms of motion, the description of textbook word seems dry as dust.So on mechanical principle classroom, the demonstration directive function of teaching aid just seems very important, it can allow classmates go more intuitively to understand and understanding mechanism, and that large-scale mechanical principle teaching aid model in laboratory, be more suitable in making a visit to, inconvenience is carried on classroom and classmates' interaction, and expensive.The teaching aid of a kind of mechanism of single demonstration, function singleness and can not quantitative test.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of cam and linkage mechanism to teach auxiliary instrument, and the typical mechanism in mechanical principle course is extracted, and makes student image, the study that completes intuitively knowledge and grasp.
The utility model comprises shows casing, crank and rocker mechanism, four-bar linkage evolution mechanism and cam mechanism.Described crank and rocker mechanism, four-bar linkage evolution mechanism and cam mechanism is all arranged on the side of showing casing, and respectively by being arranged on a servomotor input power of showing in casing.
Described crank and rocker mechanism comprises the first crank, rocking bar and first connecting rod; One end of described the first crank and rocking bar is all hinged with displaying casing; The first crank is by first servomotor input power; The two ends of described first connecting rod are hinged with the other end of the first crank and rocking bar respectively.
Described four-bar linkage evolution mechanism can be the one in crank rocker mechanism, oscillating guidebar mechanism, not offset slider-crank mechanism or offset slider-crank mechanism; The display box body side surface at four-bar linkage evolution mechanism place offers crank the first hinge hole, crank the second hinge hole, crank the 3rd hinge hole, crank the 4th hinge hole, guide rod hinge hole and swinging block hinge hole; Described four-bar linkage evolution mechanism is by second servomotor input power.
Described cam mechanism comprises cam the first driven member, cam, guide rail and cam the second driven member; Described cam is hinged with displaying casing, and by the 3rd servomotor input power; Described guide rail is fixed with showing casing; Cam the first driven member and cam the second driven member all vertically arrange, and are provided with spacing, the hinged center-aligned setting of the axial line of cam the second driven member and cam between the axial line of described cam the first driven member and the hinged center of cam; Cam the first driven member is all connected by sliding pair with guide rail with cam the second driven member, and cam the first driven member and cam the second driven member all offer fixed orifice; Cam the first driven member is connected by cam is secondary with cam, and cam the second driven member is fixed by screw at its fixed orifice place and guide rail.
The bottom of described displaying casing is provided with feet, and top is provided with handle.
The display box body side surface at described crank and rocker mechanism place is provided with blank sheet of paper; The hinged place at described first connecting rod two ends is all fixed with pencil, and the nib of pencil contacts with blank sheet of paper.
Described four-bar linkage evolution mechanism is not offset slider-crank mechanism, comprises the second crank, second connecting rod, slide block and guide rod; One end of the second crank is hinged at crank the first hinge hole place with displaying casing, and one end of the other end and second connecting rod is hinged; The other end and the slide block of second connecting rod are hinged; Slide block is connected by sliding pair with guide rod; Guide rod is fixed with showing casing.The second crank is by second servomotor input power.
Described four-bar linkage evolution mechanism is offset slider-crank mechanism, comprises the second crank, second connecting rod, slide block and guide rod; One end of the second crank is hinged at crank the second hinge hole place with displaying casing, and one end of the other end and second connecting rod is hinged; The other end and the slide block of second connecting rod are hinged; Slide block is connected by sliding pair with guide rod; Guide rod is fixed with showing casing.The second crank is by second servomotor input power.
Described four-bar linkage evolution mechanism is oscillating guidebar mechanism, comprises the second crank, slide block and guide rod; One end of the second crank is hinged at crank the 3rd hinge hole place with displaying casing, and the other end and slide block are hinged; Slide block is connected by sliding pair with guide rod; Guide rod is hinged at guide rod hinge hole place with displaying casing.The second crank is by second servomotor input power.
Described four-bar linkage evolution mechanism is crank rocker mechanism, comprises the second crank, guide rod and swinging block.One end of the second crank is hinged at crank the 4th hinge hole place with displaying casing, and the other end and guide rod are hinged; Swinging block is connected by sliding pair with guide rod, and hinged at swinging block hinge hole place with displaying casing.The second crank is by second servomotor input power.
The beneficial effects of the utility model are:
1, the integrated typical mechanism of the utility model, not only can be used as mechanical principle classroom teaching aid, also can be used as mechanical principle experiment porch;
2, the utility model is easy and simple to handle, makes student image, the study that completes intuitively knowledge and grasp;
3, the utility model compact conformation, small and exquisite exquisiteness, quality are light, easy to carry, and are easy to safeguard.
Brief description of the drawings
Fig. 1 is one-piece construction stereographic map of the present utility model;
Fig. 2 is the display box body side surface schematic diagram at the utility model midplane four-bar mechanism evolution mechanism place;
Fig. 3-1st, schematic diagram when the utility model midplane four-bar mechanism evolution mechanism is not offset slider-crank mechanism;
Fig. 3-2nd, schematic diagram when the utility model midplane four-bar mechanism evolution mechanism is offset slider-crank mechanism;
Fig. 3-3rd, schematic diagram when the utility model midplane four-bar mechanism evolution mechanism is oscillating guidebar mechanism;
Fig. 3-4th, schematic diagram when the utility model midplane four-bar mechanism evolution mechanism is crank rocker mechanism.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of cam and linkage mechanism are taught auxiliary instrument, comprise and show casing 1, crank and rocker mechanism 2, four-bar linkage evolution mechanism 3 and cam mechanism 4.The bottom of showing casing is provided with feet 1-2, and top is provided with handle 1-1; Crank and rocker mechanism 2, four-bar linkage evolution mechanism 3 and cam mechanism 4 are all arranged on the side of showing casing 1, and respectively by being arranged on a servomotor input power of showing in casing 1.
Crank and rocker mechanism 2 comprises the first crank 2-2, rocking bar 2-3 and first connecting rod 2-1; Displaying casing 1 side at crank and rocker mechanism place is provided with blank sheet of paper; One end of the first crank 2-2 and rocking bar 2-3 is all hinged with displaying casing 1; The first crank 2-2 is by first servomotor input power; The two ends of first connecting rod 2-1 are hinged with the other end of the first crank 2-2 and rocking bar 2-3 respectively, and hinged place is all fixed with pencil, and the nib of pencil contacts with blank sheet of paper.
As shown in Fig. 1,2,3-1,3-2,3-3 and 3-4, four-bar linkage evolution mechanism 3 can be the one in crank rocker mechanism, oscillating guidebar mechanism, not offset slider-crank mechanism or offset slider-crank mechanism; Displaying casing 1 side opening at four-bar linkage evolution mechanism 3 places is provided with crank the first hinge hole 3-1, crank the second hinge hole 3-2, crank the 3rd hinge hole 3-3, crank the 4th hinge hole 3-4, guide rod hinge hole 3-5 and swinging block hinge hole 3-6; Four-bar linkage evolution mechanism is by second servomotor input power.
Four-bar linkage evolution mechanism as shown in Fig. 1 and 3-1 is not offset slider-crank mechanism, comprises the second crank 3-8, second connecting rod 3-9, slide block 3-10 and guide rod 3-7; One end of the second crank 3-8 is hinged at crank the first hinge hole 3-1 place with displaying casing 1, and one end of the other end and second connecting rod 3-9 is hinged; The other end of second connecting rod 3-9 and slide block 3-10 are hinged; Slide block 3-10 is connected by sliding pair with guide rod 3-7; Guide rod 3-7 fixes with showing casing 1.The second crank 3-8 is by second servomotor input power.
Four-bar linkage evolution mechanism as shown in Fig. 1 and 3-2 is offset slider-crank mechanism, comprises the second crank 3-8, second connecting rod 3-9, slide block 3-10 and guide rod 3-7; One end of the second crank 3-8 is hinged at crank the second hinge hole 3-2 place with displaying casing 1, and one end of the other end and second connecting rod 3-9 is hinged; The other end of second connecting rod 3-9 and slide block 3-10 are hinged; Slide block 3-10 is connected by sliding pair with guide rod 3-7; Guide rod 3-7 fixes with showing casing 1.The second crank 3-8 is by second servomotor input power.
Four-bar linkage evolution mechanism as shown in Fig. 1 and 3-3 is oscillating guidebar mechanism, comprises the second crank 3-8, slide block 3-10 and guide rod 3-7; One end of the second crank 3-8 is hinged at crank the 3rd hinge hole 3-3 place with displaying casing 1, and the other end and slide block 3-10 are hinged; Slide block 3-10 is connected by sliding pair with guide rod 3-7; Guide rod 3-7 is hinged at guide rod hinge hole 3-5 place with displaying casing 1.The second crank 3-8 is by second servomotor input power.
Four-bar linkage evolution mechanism as shown in Fig. 1 and 3-4 is crank rocker mechanism, comprises the second crank 3-8, guide rod 3-7 and swinging block 3-11.One end of the second crank 3-8 is hinged at crank the 4th hinge hole 3-4 place with displaying casing 1, and the other end and guide rod 3-7 are hinged; Swinging block 3-11 is connected by sliding pair with guide rod 3-7, and hinged at swinging block hinge hole 3-6 place with displaying casing 1.The second crank 3-8 is by second servomotor input power.
As shown in Figure 1, cam mechanism 4 comprises cam the first driven member 4-1, cam 4-2, guide rail 4-3 and cam the second driven member 4-4; Cam 4-2 is hinged with displaying casing 1, and by the 3rd servomotor input power; Guide rail 4-3 fixes with showing casing 1; Cam the first driven member 4-1 and cam the second driven member 4-4 all vertically arrange, and are provided with spacing, the hinged center-aligned setting of the axial line of cam the second driven member 4-4 and cam 4-2 between the axial line of cam the first driven member 4-1 and the hinged center of cam 4-2; Cam the first driven member 4-1 is all connected by sliding pair with guide rail 4-3 with cam the second driven member 4-4, and cam the first driven member 4-1 and cam the second driven member 4-4 all offer fixed orifice; Cam the first driven member 4-1 is connected by cam is secondary with cam 4-2, and cam the second driven member 4-4 fixes by screw at its fixed orifice place and guide rail 4-3.In the time that needs are demonstrated radial translating follower cam mechanism, can screw out the screw on cam the second driven member 4-4, now cam the second driven member 4-4 is connected by cam is secondary with cam 4-2, and can slide along guide rail 4-3.In the time not needing to demonstrate offset translating follower cam mechanism, cam the second driven member 4-4 can be fixed by screw at its fixed orifice place and guide rail 4-3.
This cam and linkage mechanism are taught the principle of work of auxiliary instrument:
The first crank 2-2 of crank and rocker mechanism 2 drives first connecting rod 2-1 and rocking bar 2-3 motion, and the pencil of hinged place, first connecting rod 2-1 two ends is depicted the movement locus of the first crank 2-2 and rocking bar 2-3 on blank sheet of paper.In four-bar linkage evolution mechanism 3, by the various combination form of the second crank 3-8, second connecting rod 3-9, slide block 3-10, guide rod 3-7 and swinging block 3-11 and at the diverse location of showing casing 1 side, the crank rocker mechanism of can arranging in pairs or groups out, oscillating guidebar mechanism, not offset slider-crank mechanism or offset slider-crank mechanism.In cam mechanism 4, the motion of radial translating follower cam mechanism can be shown at the screw at its fixed orifice place by screwing out cam the second driven member 4-4, the motion of offset translating follower cam mechanism can be shown by cam the first driven member 4-1.

Claims (7)

1. cam and linkage mechanism are taught an auxiliary instrument, comprise and show casing, crank and rocker mechanism, four-bar linkage evolution mechanism and cam mechanism, it is characterized in that:
Described crank and rocker mechanism, four-bar linkage evolution mechanism and cam mechanism is all arranged on the side of showing casing, and respectively by being arranged on a servomotor input power of showing in casing;
Described crank and rocker mechanism comprises the first crank, rocking bar and first connecting rod; One end of described the first crank and rocking bar is all hinged with displaying casing; The first crank is by first servomotor input power; The two ends of described first connecting rod are hinged with the other end of the first crank and rocking bar respectively;
Described four-bar linkage evolution mechanism can be the one in crank rocker mechanism, oscillating guidebar mechanism, not offset slider-crank mechanism or offset slider-crank mechanism; The display box body side surface at four-bar linkage evolution mechanism place offers crank the first hinge hole, crank the second hinge hole, crank the 3rd hinge hole, crank the 4th hinge hole, guide rod hinge hole and swinging block hinge hole; Described four-bar linkage evolution mechanism is by second servomotor input power;
Described cam mechanism comprises cam the first driven member, cam, guide rail and cam the second driven member; Described cam is hinged with displaying casing, and by the 3rd servomotor input power; Described guide rail is fixed with showing casing; Cam the first driven member and cam the second driven member all vertically arrange, and are provided with spacing, the hinged center-aligned setting of the axial line of cam the second driven member and cam between the axial line of described cam the first driven member and the hinged center of cam; Cam the first driven member is all connected by sliding pair with guide rail with cam the second driven member, and cam the first driven member and cam the second driven member all offer fixed orifice; Cam the first driven member is connected by cam is secondary with cam, and cam the second driven member is fixed by screw at its fixed orifice place and guide rail.
2. a kind of cam according to claim 1 and linkage mechanism are taught auxiliary instrument, it is characterized in that: the bottom of described displaying casing is provided with feet, and top is provided with handle.
3. a kind of cam according to claim 1 and linkage mechanism are taught auxiliary instrument, it is characterized in that: the display box body side surface at described crank and rocker mechanism place is provided with blank sheet of paper; The hinged place at described first connecting rod two ends is all fixed with pencil, and the nib of pencil contacts with blank sheet of paper.
4. a kind of cam according to claim 1 and linkage mechanism are taught auxiliary instrument, it is characterized in that: described four-bar linkage evolution mechanism is not offset slider-crank mechanism, comprises the second crank, second connecting rod, slide block and guide rod; One end of the second crank is hinged at crank the first hinge hole place with displaying casing, and one end of the other end and second connecting rod is hinged; The other end and the slide block of second connecting rod are hinged; Slide block is connected by sliding pair with guide rod; Guide rod is fixed with showing casing; The second crank is by second servomotor input power.
5. a kind of cam according to claim 1 and linkage mechanism are taught auxiliary instrument, it is characterized in that: described four-bar linkage evolution mechanism is offset slider-crank mechanism, comprises the second crank, second connecting rod, slide block and guide rod; One end of the second crank is hinged at crank the second hinge hole place with displaying casing, and one end of the other end and second connecting rod is hinged; The other end and the slide block of second connecting rod are hinged; Slide block is connected by sliding pair with guide rod; Guide rod is fixed with showing casing; The second crank is by second servomotor input power.
6. a kind of cam according to claim 1 and linkage mechanism are taught auxiliary instrument, it is characterized in that: described four-bar linkage evolution mechanism is oscillating guidebar mechanism, comprises the second crank, slide block and guide rod; One end of the second crank is hinged at crank the 3rd hinge hole place with displaying casing, and the other end and slide block are hinged; Slide block is connected by sliding pair with guide rod; Guide rod is hinged at guide rod hinge hole place with displaying casing; The second crank is by second servomotor input power.
7. a kind of cam according to claim 1 and linkage mechanism are taught auxiliary instrument, it is characterized in that: described four-bar linkage evolution mechanism is crank rocker mechanism, comprises the second crank, guide rod and swinging block; One end of the second crank is hinged at crank the 4th hinge hole place with displaying casing, and the other end and guide rod are hinged; Swinging block is connected by sliding pair with guide rod, and hinged at swinging block hinge hole place with displaying casing; The second crank is by second servomotor input power.
CN201420270579.9U 2014-05-22 2014-05-22 Teaching aid of cam and rod mechanisms CN203910156U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420270579.9U CN203910156U (en) 2014-05-22 2014-05-22 Teaching aid of cam and rod mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420270579.9U CN203910156U (en) 2014-05-22 2014-05-22 Teaching aid of cam and rod mechanisms

Publications (1)

Publication Number Publication Date
CN203910156U true CN203910156U (en) 2014-10-29

Family

ID=51784413

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420270579.9U CN203910156U (en) 2014-05-22 2014-05-22 Teaching aid of cam and rod mechanisms

Country Status (1)

Country Link
CN (1) CN203910156U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332098A (en) * 2014-11-04 2015-02-04 北京理工大学 Comprehensive experiment table of cam
CN104464494A (en) * 2014-12-25 2015-03-25 北京理工大学 Teaching analyzing instrument of planar linkage mechanism
CN104637392A (en) * 2015-03-06 2015-05-20 广西科技大学 Multifunctional four-bar mechanism demonstrator
CN105788437A (en) * 2016-02-16 2016-07-20 南昌大学 Horizontal plane mechanism combined type teaching aid
CN105788436A (en) * 2016-02-16 2016-07-20 南昌大学 Horizontal plane linkage combined type teaching aid
CN105788435A (en) * 2016-02-16 2016-07-20 南昌大学 Horizontal crank guide rod slide block mechanism combined type teaching aid
CN105913753A (en) * 2016-06-02 2016-08-31 厦门理工学院 Mechanical principle experiment teaching aid

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332098A (en) * 2014-11-04 2015-02-04 北京理工大学 Comprehensive experiment table of cam
CN104332098B (en) * 2014-11-04 2016-10-05 北京理工大学 A kind of cam comprehensive experiment table
CN104464494A (en) * 2014-12-25 2015-03-25 北京理工大学 Teaching analyzing instrument of planar linkage mechanism
CN104637392A (en) * 2015-03-06 2015-05-20 广西科技大学 Multifunctional four-bar mechanism demonstrator
CN105788437A (en) * 2016-02-16 2016-07-20 南昌大学 Horizontal plane mechanism combined type teaching aid
CN105788436A (en) * 2016-02-16 2016-07-20 南昌大学 Horizontal plane linkage combined type teaching aid
CN105788435A (en) * 2016-02-16 2016-07-20 南昌大学 Horizontal crank guide rod slide block mechanism combined type teaching aid
CN105913753A (en) * 2016-06-02 2016-08-31 厦门理工学院 Mechanical principle experiment teaching aid

Similar Documents

Publication Publication Date Title
Ricci Mindsets in the Classroom
CN203588494U (en) Demonstration device used for history teaching
CN203858813U (en) Multi-freedom cam teaching device
CN204303274U (en) A kind of ideological and political education propaganda board
CN206505562U (en) A kind of folding English teaching servicing unit
CN201886690U (en) Hinged four-bar linkage type demonstration device
CN104036684B (en) A kind of gear train overview display teaching aid
CN104299508B (en) Cam profile curve is drawn demonstrator
CN104464494A (en) Teaching analyzing instrument of planar linkage mechanism
CN203588498U (en) English teaching device capable of facilitating teacher and student interaction
CN205211205U (en) Display device for english language teaching
CN204719991U (en) A kind of two-sided English teaching board
CN201969575U (en) Multifunctional chemical experiment table
CN202905003U (en) Link mechanism demonstration teaching aid
CN204541415U (en) A kind of Chinese literature exhibiting device
CN203465883U (en) Demonstration teaching aid for convex lens imaging teaching
CN204204228U (en) Illuminated memorizing english words apparatus
CN202319514U (en) Blackboard for Chinese teaching
CN203179345U (en) Function demonstration instrument for higher mathematics teaching
CN202929894U (en) English teaching appliance
CN206400882U (en) A kind of mathematical modeling demonstration teaching aid
CN205272954U (en) Blackboard for mathematics teaching
CN202795828U (en) Functional limit demonstration teaching tool special for advanced mathematics
CN204526521U (en) A kind of portable Political Teaching blackboard
CN104240581A (en) Bar mechanism teaching model

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141029

Termination date: 20150522

EXPY Termination of patent right or utility model