CN204720088U - Magnetic four-bar mechanism experiment instrument - Google Patents
Magnetic four-bar mechanism experiment instrument Download PDFInfo
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- CN204720088U CN204720088U CN201520295297.9U CN201520295297U CN204720088U CN 204720088 U CN204720088 U CN 204720088U CN 201520295297 U CN201520295297 U CN 201520295297U CN 204720088 U CN204720088 U CN 204720088U
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- rod member
- magnet
- circular magnet
- bar
- magnetic
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Abstract
Magnetic four-bar mechanism experiment instrument, comprise four rod members, respectively on the same surface of each rod member head and the tail fix a circular magnet, four rod member head and the tail magnet attractions can form a four-bar mechanism, wherein a rod member has the surface of circular magnet also to fix a strip magnet, another rod member has the surface of circular magnet also to fix a circular magnet between two magnet, thus, this four bars experiment instrument can be used for the research discussion teaching that four-bar mechanism exists turnover side conditions, can be used for demonstrating various basic model four-bar mechanism, also can be used for the demonstration of slider-crank mechanism, because apply magnet dexterously, thus achieve and do not having to realize pivotal motion in mechanical hinge pin situation, do not having to realize straight line sliding motion in slide block situation, structure is simple, easy to operate, be easy to preserve, magnetic can also be worked as fixing article on iron surface after taking apart.
Description
Technical field
The utility model relates to a kind of education experiment apparatus, particularly a kind of four-bar mechanism experimental provision, and it may be used for demonstrating and there is the secondary condition of turnover, crank and rocker mechanism, double-crank mechanism, double rocker mechanism, slider-crank mechanism etc.
Background technology
The application of linkage assembly is very extensive, and it often appears in numerous industrial and agricultural machinery and engineering machinery.Therefore, linkage assembly is one of most important mechanism of mechanical principle or Fundamentals of Machine Design learning.As there is the condition of crank in the ABC of planar linkage mechanism, the fundamental type of four-bar linkage and evolution mode etc. thereof become the heavy difficult point in teaching.
For this reason, there are some to develop some experimental provisions and carry out auxiliary learning aid.As ZL201220000685.6 and ZL201310501665.6, but device disclosed in these patents, ubiquity complex structure, structure are fixing is inconvenient to dismantle shortcomings such as depositing.
Utility model content
The purpose of this utility model is the defect overcoming prior art, one four-bar mechanism experimental provision is simply and easily provided, it may be used for the research discussion type teaching that four-bar linkage exists turnover side conditions, the motion of four-bar mechanism fundamental type can be demonstrated, do not have slide block but can demonstrate the motion of slider-crank mechanism, structure is simple, and it is extremely convenient to operate.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of magnetic four-bar mechanism experiment instrument of the present utility model, this experiment instrument is made up of rod member 1, rod member 2, rod member 3 and rod member 4, it is characterized in that one piece of circular magnet 6 is fixed on the same surface, head and the tail two ends of every root rod member, head and the tail circular magnet 6 is successively mutually after adhesive, the rod member that each rod member adjoins relatively can relatively rotate around the center of the circular magnet 6 of their adhesives, thus forms four-bar linkage.
Described rod member 3 also fixes one piece of circular magnet 6 between head and the tail two pieces of circular magnet 6, all magnet exists together a surface, when replacing its end circular magnet 6 attracting with another Rod end circular magnet 6 by rod member 3 centre position circular magnet 6, one of two things can show as to meet in four-bar linkage exists the secondary bar elongate member of turnover, and another does not then meet this bar elongate member.
Described rod member 1 fixes a strip magnet 5 along bar length direction between the circular magnet 6 of two pieces, its two ends, and to coexist same surface with two ends circular magnet 6, the length of strip magnet 5 is not less than the twice of two pieces of circular magnet 6 centre distance in rod member 2 two ends, and one end of strip magnet 5 is not more than the difference of two circular magnet 6 centre distance in two circular magnet 6 centre distance and bar 2 on rod member 4 to the distance between its end circular magnet 6.
Described each rod member can be aluminium alloy or plastics or wood material.
Described each magnet can embed rod member or stick with glue on rod member surface.
The beneficial effects of the utility model are:
1., without slide block, machinery-free type hinge pin, structure is simple, and cost is low.
2. diverse in function.Primary deformable has:
A) there is turnover research discussion type that is secondary and Crank Conditioning to impart knowledge to students;
B) three kinds of basic four-bar mechanism motion demonstrating experiments;
C) slider-crank mechanism motion demonstrating experiment;
D) can be used as magnetic sticker after breaking, at the fixing article in ironwork surface.
3. extremely conveniently break, stack after breaking, collection economizes local, not in a jumble.
Accompanying drawing explanation
Fig. 1 is four-bar mechanism of the present utility model, meets and there is the secondary bar elongate member of turnover;
Fig. 2 is four-bar mechanism of the present utility model, does not meet and there is the secondary bar elongate member of turnover;
Fig. 3 is the slider-crank mechanism schematic diagram built after removing Fig. 1 or 2 king-rods 3.
In accompanying drawing: 1, rod member 1,2, rod member 2,3, rod member 3,4, rod member 4,5, bar magnet, 6, circular magnet.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, 2, magnetic four-bar mechanism experiment instrument of the present utility model, this experiment instrument is made up of rod member 1, rod member 2, rod member 3 and rod member 4, it is characterized in that one piece of circular magnet 6 is fixed on the same surface, head and the tail two ends of every root rod member, head and the tail circular magnet 6 is successively mutually after adhesive, the rod member that each rod member adjoins relatively can relatively rotate around the center of the circular magnet 6 of their adhesives, acts on same hinge, thus forms four-bar linkage.
Described rod member 3 also fixes one piece of circular magnet 6 between head and the tail two pieces of circular magnet 6, all magnet exists together a surface, when replacing its end circular magnet 6 attracting with another Rod end circular magnet 6 by rod member 3 centre position circular magnet 6, one of two things can show as to meet in four-bar linkage exists the secondary bar elongate member of turnover, as shown in Figure 1, be the demonstration that frame can be used for crank and rocker mechanism, double-crank mechanism, double rocker mechanism by changing different rod member, another does not then meet this bar elongate member, as shown in Figure 2, can only be double rocker mechanism.
Described rod member 1 fixes a strip magnet 5 along bar length direction between the circular magnet 6 of two pieces, its two ends, and to coexist same surface with two ends circular magnet 6, the length of strip magnet 5 is not less than the twice of two pieces of circular magnet 6 centre distance in bar 2 two ends, and one end of strip magnet 5 is not more than the difference of two circular magnet 6 centre distance in two circular magnet 6 centre distance and bar 2 on rod member 4 to the distance between its end circular magnet 6, if the bar 3 in Fig. 1 or 2 is removed, after magnet attraction corresponding in Fig. 3, the circular magnet 6 of bar 4 end and bar magnet adhesive not only will be rotated but also slide along bar magnet 5, its motion is with a hinged slide block, can be used for slider-crank mechanism motion demonstrating.
Described each rod member can be aluminium alloy or plastics or wood material.
Described each magnet can embed rod member or stick with glue on rod member surface.
Specific embodiment is as follows:
As shown in Fig. 1,2 and 3, centre distance on bar 1 between the magnet of two ends is 300mm, the length of bar magnet 5 is 260, be in magnet middle, two ends, centre distance on rod member 2 between the magnet of two ends is 120mm, centre distance on bar 3 between the magnet of two ends is 350mm, 3rd piece of magnetic blow out centre is respectively 280mm and 70mm to the spacing of two ends magnetic blow out centre, centre distance on bar 4 between the magnet of two ends is 160mm, four rod members are plastic material or aluminium alloy or wood, and magnet all embeds in bar or sticks with glue on rod member surface.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim; all technical schemes taking equivalent replacement or equivalent transformation to obtain to the utility model, all fall into protection domain of the present utility model.
Claims (5)
1. magnetic four-bar mechanism experiment instrument, this experiment instrument is made up of rod member 1, rod member 2, rod member 3 and rod member 4, it is characterized in that one piece of circular magnet (6) is fixed on the same surface, head and the tail two ends of every root rod member, head and the tail circular magnet (6) are successively mutually after adhesive, the rod member that each rod member adjoins relatively can relatively rotate around the center of the circular magnet of their adhesives (6), thus forms four-bar linkage.
2. magnetic four-bar mechanism experiment instrument according to claim 1, it is characterized in that described rod member 3 also fixes one piece of circular magnet (6) between head and the tail two pieces of circular magnet (6), all magnet exists together a surface, when replacing its end circular magnet (6) and another Rod end circular magnet (6) attracting with rod member 3 centre position circular magnet (6), one of two things can show as to meet in four-bar linkage exists the secondary bar elongate member of turnover, and another does not then meet this bar elongate member.
3. magnetic four-bar mechanism experiment instrument according to claim 1, it is characterized in that described rod member 1 fixes a strip magnet 5 along bar length direction between the circular magnet (6) of two pieces, its two ends, and to coexist same surface with two ends circular magnet (6), the length of strip magnet 5 is not less than the twice of two pieces of circular magnet (6) centre distance in bar 2 two ends, and one end of strip magnet 5 is not more than the difference of two circular magnet (6) centre distance in two circular magnet (6) centre distance and rod member 2 on rod member 4 to the distance between its end circular magnet (6).
4. magnetic four-bar mechanism experiment instrument according to claim 1, is characterized in that described each rod member can be aluminium alloy or plastics or wood material.
5. the magnetic four-bar mechanism experiment instrument according to claim 1 or 2 or 3, is characterized in that described each magnet can embed rod member or stick with glue on rod member surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520295297.9U CN204720088U (en) | 2015-05-05 | 2015-05-05 | Magnetic four-bar mechanism experiment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520295297.9U CN204720088U (en) | 2015-05-05 | 2015-05-05 | Magnetic four-bar mechanism experiment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720088U true CN204720088U (en) | 2015-10-21 |
Family
ID=54319064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520295297.9U Expired - Fee Related CN204720088U (en) | 2015-05-05 | 2015-05-05 | Magnetic four-bar mechanism experiment instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205343A (en) * | 2015-05-05 | 2016-12-07 | 南京农业大学 | Magnetic four-bar mechanism experiment instrument |
-
2015
- 2015-05-05 CN CN201520295297.9U patent/CN204720088U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106205343A (en) * | 2015-05-05 | 2016-12-07 | 南京农业大学 | Magnetic four-bar mechanism experiment instrument |
| CN106205343B (en) * | 2015-05-05 | 2020-02-04 | 南京农业大学 | Magnetic four-bar mechanism experimental instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20210505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |