CN2073140U - Component and resultant of forces display gage for mechanical teaching - Google Patents
Component and resultant of forces display gage for mechanical teaching Download PDFInfo
- Publication number
- CN2073140U CN2073140U CN 90216804 CN90216804U CN2073140U CN 2073140 U CN2073140 U CN 2073140U CN 90216804 CN90216804 CN 90216804 CN 90216804 U CN90216804 U CN 90216804U CN 2073140 U CN2073140 U CN 2073140U
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- China
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- component
- spiral arm
- making
- concerted effort
- demonstrator
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Abstract
The utility model relates to a component and resultant of forces display gage for mechanical teaching. The exiting demonstrator is composed of three spring scales. Two weights are respectively hung on two spring scales of component force, the spring scale and the weight are connected with an item of fine wire winded on a movable fast-pulley, and an angle gauge is fixed on a support, so that the operation of experiment is very troublesome. The aim of the utility model is to provide a teaching display gage with simple construction and flexible and convenient demonstration. The utility model is composed of a cross, an angle gauge, a circular sliding track, a spiral arms locater, a dynamometric device of joint force and two spiral arms, and a dynamometric device of component force and a spiral arms locator card are respectively equipped on the spiral arms.
Description
The utility model relates to a kind of mechanics teaching with the component demonstrator of making a concerted effort.
At present, domestic also do not have a kind of more satisfactory demonstration teaching aid for the component of mechanics and the demonstration of making a concerted effort in physics teaching.Existing a kind of teaching aid is to adopt three spring balances to constitute, respectively hang a weights respectively on two component spring balances, be provided with thin piece of string between spring balance and the weights, cord is respectively around two movably on the fixed pulley, a protractor is being set, and protractor is fixed on the frame.Adopt this teaching aid teaching operation trouble, fixed angle is not bad measures because three force balance is put, and can not do the level experiment again, also must do the figure explanation on blackboard by resolution of force and the synthetic parallelogram law of observing after experiment is made.
The purpose of this utility model is to provide a kind of simple structure, easy to use, demonstration flexibly and expression resolution of force and synthetic teaching aid that can image, and the distribution angle that can measure out three power rapidly with make a concerted effort and the size of 2 component, thereby satisfy the needs of mechanics teaching.
The utility model is achieved like this, be on a cross, be provided with make a concerted effort a force meter and a spiral arm steady arm, connecting a protractor on the spiral arm steady arm, also be provided with a garden shape slide rail on the cross, connecting two spiral arms in the bottom of cross, each spiral arm is provided with component force meter and a spiral arm locator card, the spiral arm locator card is stuck on the shape slide rail of garden
Advantage of the present utility model is that two spiral arms can move adjusting position along garden type slide rail, the spiral arm locator card can be fixed on spiral arm any position of garden type slide rail, the spiral arm steady arm can the flexible movement protractor goes to measure with joint efforts the distribution angle with component, three force meters measure the size of three power accurately, regulate any one force meter, the variation of other two power also can promptly show, thus easy to operate, the demonstration image.
Description of drawings:
Fig. 1 is one-piece construction figure of the present utility model;
Fig. 2 is a sectional view of the present utility model;
1 is the cross fixed mount among the figure, the 2nd, and garden shape slide rail, the 3rd, spiral arm steady arm, the 4th, protractor, the 5th, the force meter of making a concerted effort, the 6th, regulate bolt, the 7th, setting nut, the 8th, spring balance, the 9th, the rule of making a concerted effort, the 10th, moving carriage, the 11st, rivet, the 12nd, planker moves card, and the 13rd, the component steel wire of making a concerted effort, the 14th, spiral arm, the 15th, component force meter 16 is component rules, the 17th, and spiral arm locator card, the 18th, little spring, the 19th, locating piece, the 20th, pull plate, the 21st, steel wire.The 22nd, movable little axle, the 23rd, sheet metal.。
The utility model is described further with specific embodiment below in conjunction with accompanying drawing:
Cross fixed mount (1), garden type slide rail (2) are made with rigid plastic, the same crosses in two ends (1) of slide rail (2) connect together, spiral arm steady arm (3) is connected together with movable little axle (22) by 3 sheet metals (23), one end is connected on the cross (1) with movable little axle (22), the other end is connected on the protractor (4) with movable little axle (22), and protractor (4) is made with transparent plastic material.Be provided with the force meter (5) of making a concerted effort on the top of cross (1), force meter (5) is made up of adjusting bolt (6), setting nut (7), spring balance (8), the rule (9) of making a concerted effort, moving carriage (10) with joint efforts, move card (12) with 2 plankers moving carriage (10) is stuck on the cross (1), the moving carriage (10) and the rule (9) of making a concerted effort are connected together with a rivet (11).Be provided with 2 plastics spiral arms (14) in addition, its end is connected in the bottom of cross (1) with movable little axle (22).On two spiral arms (14), be respectively equipped with a component force meter (15), component force meter (15) constitutes by regulating bolt (6), setting nut (7), spring balance (8), component rule (16) and moving carriage (10), move card (12) with two plankers moving carriage (10) is stuck on the spiral arm (14), moving carriage (10) and component rule (16) are connected together with a rivet (11).Other is provided with a spiral arm locator card (17), it is by little spring (18), locating piece (19) and pull plate (20) formation, one end of little spring (18) is fixed on the spiral arm (14), the other end is connected on the locating piece (19), be provided with a steel wire (21), its end is connected on the locating piece (19), and the other end is connected in and pulls on the plate (20).Spiral arm locator card (17) is stuck on the garden type slide rail (2).Be provided with the component steel wire (13) of making a concerted effort that is made of 3 steel wires, their end connects together, and the other end is connected with spring balance (8) on 2 component force meters (15) with the force meter (5) of making a concerted effort respectively.
Claims (4)
1, a kind of mechanics teaching is with the component demonstrator of making a concerted effort, it is characterized in that on a cross fixed mount (1), be provided with a garden type slide rail (2), its two ends are connected on the cross fixed mount (1), other is provided with a spiral arm steady arm (3), its end is connected on the cross fixed mount (1), the other end is connecting a protractor (4), be provided with the force meter (5) of making a concerted effort on the top of cross fixed mount (1), be provided with two spiral arms (14) in the bottom of cross fixed mount (1), spiral arm (14) is provided with a component force meter (15) and a spiral arm locator card (17), and spiral arm locator card (17) is stuck on the garden type slide rail (2).
2, mechanics teaching as claimed in claim 1 is characterized in that with the component demonstrator of making a concerted effort described spiral arm steady arm (3) is made of 3 sheet metals (23), connects together with movable little spool (22) between the sheet metal (23).
3, mechanics teaching as claimed in claim 1 or 2 is with the component demonstrator of making a concerted effort, it is characterized in that described component force meter (15) is made of an adjusting bolt (6), setting nut (7), spring balance (8), component rule (16) and moving carriage (10), be provided with 2 plankers and move card (12) moving carriage (10) is stuck on the spiral arm (14), moving carriage (10) and component rule (16) are connected together with a rivet (11).
4, mechanics teaching as claimed in claim 1 or 2 is with the component demonstrator of making a concerted effort, it is characterized in that described spiral arm locator card (17) is by little spring (18), locating piece (19) with pull plate (20) and constitute, one end of little spring (18) is fixed on the spiral arm (14), the other end is connected on the locating piece (19), be provided with a steel wire (21), its end is connected on the locating piece (19), and the other end is connected and pulls on the plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216804 CN2073140U (en) | 1990-07-30 | 1990-07-30 | Component and resultant of forces display gage for mechanical teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216804 CN2073140U (en) | 1990-07-30 | 1990-07-30 | Component and resultant of forces display gage for mechanical teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2073140U true CN2073140U (en) | 1991-03-13 |
Family
ID=4895906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90216804 Withdrawn CN2073140U (en) | 1990-07-30 | 1990-07-30 | Component and resultant of forces display gage for mechanical teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2073140U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485039A (en) * | 2014-12-23 | 2015-04-01 | 朱嘉慧 | Acting force equilibrium law experimental device |
| CN106128237A (en) * | 2016-08-18 | 2016-11-16 | 浙江大学城市学院 | A kind of chute-type three-dimensional regulation quantitative verification Double cone up rolling condition experiment instrument |
| CN110634362A (en) * | 2019-09-25 | 2019-12-31 | 黄河水利职业技术学院 | Teaching presentation device for engineering mechanics |
-
1990
- 1990-07-30 CN CN 90216804 patent/CN2073140U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485039A (en) * | 2014-12-23 | 2015-04-01 | 朱嘉慧 | Acting force equilibrium law experimental device |
| CN106128237A (en) * | 2016-08-18 | 2016-11-16 | 浙江大学城市学院 | A kind of chute-type three-dimensional regulation quantitative verification Double cone up rolling condition experiment instrument |
| CN110634362A (en) * | 2019-09-25 | 2019-12-31 | 黄河水利职业技术学院 | Teaching presentation device for engineering mechanics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |