CN203799531U - Multifunctional mechanics teaching tool - Google Patents
Multifunctional mechanics teaching tool Download PDFInfo
- Publication number
- CN203799531U CN203799531U CN201420175357.9U CN201420175357U CN203799531U CN 203799531 U CN203799531 U CN 203799531U CN 201420175357 U CN201420175357 U CN 201420175357U CN 203799531 U CN203799531 U CN 203799531U
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- proving installation
- teaching aid
- loose piece
- functional mechanical
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Abstract
The utility model discloses a multifunctional mechanics teaching tool comprising a box body. The multifunctional mechanics teaching tool is characterized in that the multifunctional mechanics teaching tool further comprises a cantilever beam test device, a simply supported beam test device and a compression bar test device which are located in the box body; the cantilever beam test device comprises a fixation raised portion fixed on the sidewall of the box body and a groove formed in the fixation raised portion for placing a cantilever beam; the simply supported beam test device comprises a slot formed in the bottom portion of the box body and two movable bosses located in the slot for fixing a simply supported beam; and the compression bar test device comprises a sleeve connected with the top portion of the box body, and an upper movable block and a lower movable block for fixing two ends of a compression bar. The multifunctional mechanics teaching tool of the utility model has the following advantages that the simply supported beam stability verification, the cantilever beam stability verification and the compression bar stability verification are fused together, the verification of problems of various different situations can be solved, so the abstract mechanics problem is embodied, the mechanics situation can be rendered really, observable recording and simple calculation can be realized, and requirements of different occasions can be satisfied, so that the understanding of concepts can be deepened easily.
Description
Technical field
The utility model relates to college mechanics course teaching aid, is specifically related to a kind of of different nature multi-functional mechanical teaching aid that can verify in material mechanics course.
Background technology
Nowadays the mechanical course of university the inside, the mechanics of materials is the mandatory subject of a lot of Engineering Students, is the knowledge that design industrial plants must be grasped.Due to the abstractness of this subject, it is uninteresting abstract that student tends to feel.And the teaching aid of correspondence rarely has with it, especially almost blank on Multifunctional combined teaching aids.Modern University needs this type of situation teaching aid to carry out Classroom Teaching.The demand of this type of teaching aid in future education industry is also further urgent.
Utility model content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multi-functional mechanical teaching aid, the experimental phenomena of free beam, semi-girder and depression bar in the multiple-authentication mechanics of materials.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
A kind of multi-functional mechanical teaching aid, comprises casing, it is characterized in that, also comprises: the semi-girder proving installation, free beam proving installation, the depression bar proving installation that are positioned at described casing; Described semi-girder proving installation comprises: be fixed on wall box fixed lobe, be positioned on described fixed lobe for placing the groove of semi-girder; Described free beam proving installation comprises: the cell body, two that is positioned at described bottom half be positioned at described cell body for placing the mobile boss of free beam; Described depression bar proving installation comprises: the sleeve that is connected with described casing top, for upper loose piece and the lower loose piece at compression column with fixed two ends.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, described semi-girder proving installation also comprises: through the trip bolt of recess sidewall.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, the quantity of described groove is more than 2.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, described free beam proving installation also comprises: the fixed pin that is positioned at the through hole of described cell body sidewall, coordinates with described through hole.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, described mobile boss top is provided with the hinged-support of fixing free beam.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, described depression bar proving installation also comprises: be positioned at box bottom for limiting the stopper slot of described lower loose piece.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, one end that described upper loose piece, lower loose piece are connected with depression bar is equipped with hinged-support.
The multi-functional mechanical teaching aid of aforesaid one, is characterized in that, also comprises the article putting groove that is positioned at described casing.
Usefulness of the present utility model is: the checking of free beam, semi-girder and pressure bar stabilization is melted into a whole, solve the checking of the problem of multiple different situations, abstract mechanics problem is specialized, reproduce truly mechanics sight, realize observable record and simple computation, and can meet the demand of different occasions, be easy to deepen the understanding to concept.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that semi-girder proving installation of the present utility model is installed the schematic diagram after semi-girder;
Fig. 3 is that free beam proving installation of the present utility model is installed the schematic diagram after free beam;
Fig. 4 is that depression bar proving installation of the present utility model is installed the schematic diagram after depression bar.
The implication of Reference numeral in figure:
A-semi-girder, b-free beam, c-depression bar,
10-casing,
20-semi-girder proving installation, 21-fixed lobe, 22-trip bolt, 23-fixed support,
30-free beam proving installation, 31-cell body, 32-moves boss, and 321-moves the hinged-support of boss, 33-through hole, 34-fixed pin,
40-depression bar proving installation, 41-sleeve, the upper loose piece of 42-, the hinged-support of the upper loose piece of 421-, loose piece under 43-, the hinged-support of loose piece under 431-,
50-article putting groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done to concrete introduction.
The multi-functional mechanical teaching aid of one as shown in Figure 1 comprises: casing 10 and be positioned at semi-girder proving installation 20, free beam proving installation 30, the depression bar proving installation 40 of casing.Semi-girder proving installation 20 can be tested the stressing conditions of semi-girder, and free beam proving installation 30 can be tested the stressing conditions of free beam, and depression bar proving installation 40 is for testing the stability of depression bar.
Semi-girder proving installation 20 as shown in Figure 2 comprises: be fixed on casing 10 sidewalls fixed lobe 21, be positioned on fixed lobe 21 for placing the groove of semi-girder a.Semi-girder proving installation 20 of the present utility model also comprises: through the trip bolt 22 of recess sidewall, trip bolt 22, for fixedly putting into the overarm arm a of groove, makes to add after counterweight on overarm arm a, and overarm arm a also can not come off.In order to reinforce fixed lobe 21, below fixed lobe 21, be also provided with fixed support 23, the quantity of fixed support 23 is preferably 2.For overarm arm is carried out to the experiment of different variablees, the quantity of groove is more than 2.When groove is 2,2 kinds of different semi-girders of xsect can be put into the groove of fixed lobe 21, load identical counterweight at the same position of semi-girder, record data and experimental phenomena; Or the groove of 2 identical semi-girders of xsect being put into fixed lobe 21, loads identical or different counterweight at the different parts of semi-girder.As required, the quantity of groove can be also 3,4 or more.
Free beam proving installation 30 as shown in Figure 3 comprises: cell body 31 and two mobile boss 32; Cell body 31 is positioned at casing 10 bottoms, and mobile boss 32 is positioned at cell body 31 for placing free beam b.While experiment, free beam b is fixed on to the top of mobile boss 32, loads load, observation experiment phenomenon, record data at the different parts of free beam b.For the ease of fixing free beam, mobile boss 32 tops are provided with hinged-support 321.Free beam b is hinged by hinged-support 321 and mobile boss 32.Free beam proving installation 30 of the present utility model also comprises: the fixed pin 34 that is positioned at the through hole 33 of cell body 31 sidewalls, coordinates with through hole 33, through hole 33 and fixed pin 34 are for fixing mobile boss 32.According to the position of two mobile boss 32 of length adjustment of free beam b.
Depression bar proving installation 40 as shown in Figure 4 comprises: sleeve 41, upper loose piece 42 and lower loose piece 43.Sleeve 41 passes casing 10 tops and is fixedly connected with casing 10 tops, and upper loose piece 42 and lower loose piece 43 are for compression column with fixed c two ends.When practical operation, upper loose piece 42 is positioned at sleeve 41, can not see loose piece 42, therefore Fig. 4 is in order better to show that depression bar proving installation 40 of the present utility model shows that upper loose piece 42 exceeds the schematic diagram of sleeve 41.In order to prevent that upper loose piece 42 from coming off in sleeve 41, in sleeve 41, be provided with the locating part of the upper loose piece 42 of restriction.Depression bar proving installation of the present utility model also comprises: stopper slot, stopper slot is positioned on casing 10 base plates, stopper slot is used for limiting lower loose piece 43 and makes loose piece 42 relative static on vertical position with lower loose piece 43, and test when strut stability in the situation that depression bar c is subject to external force on the relative position of loose piece 42, lower loose piece 43 be not offset.
For the ease of compression column with fixed c, one end that upper loose piece 42, lower loose piece 43 are connected with depression bar c is equipped with hinged-support 421,431, can change upper loose piece and the lower loose piece with different hinged-supports according to different articulated manner.While experiment, depression bar c is hinged by hinged-support 421,431 with upper loose piece 42, lower loose piece 43 respectively, add counterweight on upper loose piece 43 tops, depression bar c is applied to external force and test, observe phenomena.Counterweight is positioned at sleeve 41, like this sleeve 41 can carry out counterweight spacing, the top that prevents loose piece on the position deviation of counterweight.Progressively increase counterweight quantitative observation phenomenon, until no longer resilience of depression bar.
As a kind of preferred version, multi-functional mechanical teaching aid of the present utility model also comprises the article putting groove 50 that is positioned at casing 10, and article putting groove 50 is for placing the article such as different semi-girders, free beam, depression bar, counterweight.The article such as semi-girder, free beam, depression bar, counterweight are positioned in article putting groove 50 at ordinary times, while experiment, taking out semi-girder, free beam, depression bar is separately fixed at semi-girder proving installation 20, free beam proving installation 30, depression bar proving installation 40, and increases and decreases as required different counterweights.
More than show and described ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection domain of the present utility model.
Claims (8)
1. a multi-functional mechanical teaching aid, comprises casing, it is characterized in that, also comprises: the semi-girder proving installation, free beam proving installation, the depression bar proving installation that are positioned at described casing; Described semi-girder proving installation comprises: be fixed on wall box fixed lobe, be positioned on described fixed lobe for placing the groove of semi-girder; Described free beam proving installation comprises: the cell body, two that is positioned at described bottom half be positioned at described cell body for placing the mobile boss of free beam; Described depression bar proving installation comprises: the sleeve that is connected with described casing top, for upper loose piece and the lower loose piece at compression column with fixed two ends.
2. the multi-functional mechanical teaching aid of one according to claim 1, is characterized in that, described semi-girder proving installation also comprises: through the trip bolt of recess sidewall.
3. the multi-functional mechanical teaching aid of one according to claim 2, is characterized in that, the quantity of described groove is more than 2.
4. the multi-functional mechanical teaching aid of one according to claim 1, is characterized in that, described free beam proving installation also comprises: the fixed pin that is positioned at the through hole of described cell body sidewall, coordinates with described through hole.
5. the multi-functional mechanical teaching aid of one according to claim 4, is characterized in that, described mobile boss top is provided with the hinged-support of fixing free beam.
6. the multi-functional mechanical teaching aid of one according to claim 1, is characterized in that, described depression bar proving installation also comprises: be positioned at box bottom for limiting the stopper slot of described lower loose piece.
7. the multi-functional mechanical teaching aid of one according to claim 6, is characterized in that, one end that described upper loose piece, lower loose piece are connected with depression bar is equipped with hinged-support.
8. according to the multi-functional mechanical teaching aid of one described in claim 1 to 7 any one, it is characterized in that, also comprise the article putting groove that is positioned at described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175357.9U CN203799531U (en) | 2014-04-11 | 2014-04-11 | Multifunctional mechanics teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175357.9U CN203799531U (en) | 2014-04-11 | 2014-04-11 | Multifunctional mechanics teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799531U true CN203799531U (en) | 2014-08-27 |
Family
ID=51381728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175357.9U Expired - Fee Related CN203799531U (en) | 2014-04-11 | 2014-04-11 | Multifunctional mechanics teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448364A (en) * | 2016-11-29 | 2017-02-22 | 厉子宁 | Demonstrating instrument for simply supported beam vibration experiment |
| CN109959496A (en) * | 2019-03-26 | 2019-07-02 | 河南理工大学 | Solve the live load factor experimental provision and experimental method of a variety of beams |
-
2014
- 2014-04-11 CN CN201420175357.9U patent/CN203799531U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448364A (en) * | 2016-11-29 | 2017-02-22 | 厉子宁 | Demonstrating instrument for simply supported beam vibration experiment |
| CN106448364B (en) * | 2016-11-29 | 2018-04-06 | 厉子宁 | A kind of simply supported beam vibration experiment demonstrator |
| CN109959496A (en) * | 2019-03-26 | 2019-07-02 | 河南理工大学 | Solve the live load factor experimental provision and experimental method of a variety of beams |
| CN109959496B (en) * | 2019-03-26 | 2023-12-05 | 河南理工大学 | Experimental device and experimental method for solving dynamic load factors of various beams |
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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: 20140827 Termination date: 20170411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |