CN202352186U - Portable angular momentum conservation apparatus - Google Patents
Portable angular momentum conservation apparatus Download PDFInfo
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- CN202352186U CN202352186U CN201120497513XU CN201120497513U CN202352186U CN 202352186 U CN202352186 U CN 202352186U CN 201120497513X U CN201120497513X U CN 201120497513XU CN 201120497513 U CN201120497513 U CN 201120497513U CN 202352186 U CN202352186 U CN 202352186U
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- mounting box
- rotating shaft
- horizontal cylinder
- cylinder
- remote control
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Abstract
The utility model relates to a portable angular momentum conservation apparatus which is used for demonstrating the principle of angular momentum conservation in classroom teaching. In teaching, the portable angular momentum conservation apparatus is convenient to carry and shows an obvious effect. The technical scheme adopted by the utility model is that three plates that are connected in a detachable manner are fixed on a base to form a square frame as a support; a lower rotating shaft is fixed in a cylinder which is arranged below a mounting box in the frame, the other end of the lower rotating shaft is put on the supporting bearing of the base, an upper rotating shaft is fixed in a cylinder which is arranged above the mounting box, and the other end of the upper rotating shaft passes through a fixation hole which is formed on the support; a left transverse cylinder and a right transverse cylinder are fixed in cylinders which are positioned on the left and the right sides of the mounting box respectively, and fixing screws are mounted at two top ends of the transverse cylinders; a winding device is arranged in the inner cavity of the mounting box; one end of the winding device passes through a hole which is formed on the back side of the mounting box, and the other end of the winding device is connected with the rotating shaft of a reducing motor; the center point of a pull line is fixed on the winding device, and the two ends of the pull line are connected with stainless steel small balls respectively and arranged in the cylinders; and the reducing motor, a battery and a remote-control circuit board are arranged in the mounting box respectively. The portable angular momentum conservation apparatus has the advantages of light weight, small size, convenience for remote control and operation, simple structure and low cost.
Description
Technical field
The utility model relates to a kind of College Physics Class that is used for, the portable corner momentum conservation appearance of demonstration conservation of angular momentum principle.
Background technology
Present existing angular momentum conservation demonstration instrument, what have is too heavy, and the teacher is with the classroom cumbersome; What have is convenient for carrying, but because system friction is bigger, causes demonstrating DeGrain; Be manual fully in addition, very inconvenient in the time of demonstration, bump against hand easily.
Summary of the invention
The purpose of the utility model is: for demonstration conservation of angular momentum principle in teaching, need instrument to be easy to carry, effect is obvious, and remote control is convenient, and the spy provides a kind of portable corner momentum conservation appearance.
In order to achieve the above object, the utility model adopts following technical scheme: portable corner momentum conservation appearance, form by support, base, rotating shaft, horizontal cylinder, mounting box, stainless steel bead, backguy, reducing motor, battery, remote control circuit plate and telepilot.Support is made up of the three-lane road that flexibly connects, and support is fixed on hand-screw forms a quadro frame on the base; Mounting box is placed by central authorities at quadro frame; Be screwed lower rotary shaft in the cylinder of mounting box below; The other end of lower rotary shaft places on the spring bearing on the base, is screwed rotating shaft in the cylinder of mounting box top, and the other end of last rotating shaft passes the fixed orifice on the support; In the cylinder of the left side of mounting box, be screwed left horizontal cylinder, left horizontal cylinder and the downward angle of horizontal direction are 5
O, in the cylinder of the right of mounting box, being screwed right horizontal cylinder, right horizontal cylinder and the downward angle of horizontal direction are 5
O, 1 gib screw is respectively installed on the top, both sides of left horizontal cylinder and right horizontal cylinder; Bobbin winoler is installed in the mounting box inner chamber, and bobbin winoler one end passes the hole of mounting box back and fixes, and the other end is connected with the rotating shaft of the reducing motor of the interior front of mounting box; The mid point of backguy is fixed on the bobbin winoler; The left and right two ends of backguy respectively with two stainless steel beads on draw ring be connected; Two stainless steel beads place left horizontal cylinder and right horizontal cylinder respectively; Reducing motor is screwed above the front of mounting box inner chamber, and battery case is screwed below the back of mounting box inner chamber, and the remote control circuit plate is screwed below the front of mounting box inner chamber; Positive and negative the two poles of the earth of battery are connected with remote control circuit plate positive and negative polarities, and the output terminal of remote control circuit plate is connected with the input end of reducing motor.
With the horizontal cylinder rotation of hand propelled, remote-control motor rotates then, twines backguy, and pulling stainless steel bead is near rotating shaft, and according to angular momentum conservation law, the moment of inertia of rotating part reduces, and causes velocity of rotation to increase; The reverse rotation of control motor, the stainless steel bead is away from rotating shaft, and the moment of inertia of rotating part increases, and causes velocity of rotation to reduce.
The beneficial effect of the utility model is that this installs light small and exquisite, is easy to carry; Adopt transparent organic glass, can know the operation of seeing instrument, experiment effect is obvious, can repeated experiments repeatedly; Remote control mode can reduce to damage and friction; Simple in structure, be easy to make; All parts are all detachable, for ease of maintenaince; The instrument core component is a standard component, buys easily, and cost is lower.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model portable corner momentum conservation appearance.
Fig. 2 is the mounting box inner structure synoptic diagram of the utility model portable corner momentum conservation appearance.
Fig. 3 is the telepilot synoptic diagram of the utility model portable corner momentum conservation appearance.
1. supports among the figure, 2. base, 3. radial journal bearing, 4. fixed orifice is 5. gone up rotating shaft; 6. lower rotary shaft, 7. mounting box, 8. right horizontal cylinder, 9. left horizontal cylinder, 10. gib screw; 11. the stainless steel bead, 12. backguys, 13. hand-screws, 14. bobbin winolers; 15. battery, 16. reducing motors, 17. remote control circuit plates, 18. telepilots.
Embodiment
As shown in Figure 1: support 1 is made up of the three-lane road that flexibly connects, and support 1 usefulness hand-screw 13 is fixed on the base 2, forms a quadro frame; Mounting box 7 is placed by central authorities at quadro frame; Be screwed lower rotary shaft 6 in the mounting box 7 below tubes; The other end of lower rotary shaft 6 places on the spring bearing 3 on the base 2, is screwed rotating shaft 5 in the mounting box 7 top cylinders, and the other end of last rotating shaft 5 passes the fixed orifice 4 on the support 1; In the cylinder of the left side of mounting box 7, be screwed left horizontal cylinder 9, left horizontal cylinder 9 is 5 with the downward angle of horizontal direction
o, in the cylinder of the right of mounting box 7, being screwed right horizontal cylinder 8, right horizontal cylinder 8 is 5 with the downward angle of horizontal direction
o, 1 gib screw 10 is respectively installed on the top, both sides of left horizontal cylinder 9 and right horizontal cylinder 8; The mid point of backguy 12 is fixed on the bobbin winoler 14, backguy 12 left and right two ends respectively with two stainless steel beads 11 on draw ring be connected, two stainless steel beads 11 place left horizontal cylinder 9 and right horizontal cylinder 8 respectively.
As shown in Figure 2: bobbin winoler 14 is installed in mounting box 7 inner chambers, and bobbin winoler 14 1 ends pass the hole of mounting box 7 back and fix, and the other end is connected with the rotating shaft of the reducing motor 16 of mounting box 7 interior fronts; Reducing motor 16 is screwed above the front of mounting box 7 inner chambers; Battery 15 boxes are screwed below the back of mounting box 7 inner chambers; Remote control circuit plate 17 is screwed below the front of mounting box 7 inner chambers; Positive and negative the two poles of the earth of battery 15 are connected with remote control circuit plate 17 positive and negative polarities, and the output terminal of remote control circuit plate 17 is connected with the input end of reducing motor 16.Remote control circuit is small-sized teleswitch RK04C-12 type.The parameter of electric machine is following: diameter: 12mm, fuselage do not contain shaft length: 26mm axial length 10mm diameter 3mm both sides milling flat 0.5mm voltage power supply scope: DC1.5-12V.
As shown in Figure 3: telepilot 18 is complementary with remote control circuit plate 17, and remote control reducing motor 16 rotates.
Last rotating shaft 5 is installed in mounting box 7 outsides with lower rotary shaft 6, left horizontal cylinder 9 with right horizontal cylinder 8 and the interior stainless steel bead 11 of tube; Bobbin winoler 14, backguy 12, battery 15, reducing motor 16 and remote control circuit plate 17 are installed in the inner chamber of mounting box 7, and two parts and mounting box 7 are linked to be an integral body, constitute the rotating part of conservation of angular momentum appearance; The fixed orifice 4 on the support 1 is passed in the last rotating shaft 5 of rotating part, and lower rotary shaft 6 lower ends of rotating part place on the spring bearing 3 on the base 2.
With the rotation of hand propelled rotating part, rotate with telepilot 18 remote control reducing motors 16 then, twine backguy 12; Pulling stainless steel bead 11 is near rotating shaft; The moment of inertia of rotating part can reduce, and according to angular momentum conservation law, the velocity of rotation of rotating part can increase; 16 reverse rotations of remote control reducing motor, under the effect of centrifugal force and downslide component, stainless steel bead 11 is away from rotating shaft, and the moment of inertia of rotating part increases, and according to angular momentum conservation law, the velocity of rotation of rotating part can reduce.
Claims (2)
1. portable corner momentum conservation appearance; Form by support, base, rotating shaft, horizontal cylinder, mounting box, stainless steel bead, backguy, reducing motor, battery, remote control circuit plate and telepilot; It is characterized in that: support (1) is made up of the three-lane road that flexibly connects; Support (1) is fixed on the base (2) with hand-screw (13), forms a quadro frame; Mounting box (7) is placed by central authorities at quadro frame; Be screwed lower rotary shaft (6) in the tube of mounting box (7) below; The other end of lower rotary shaft (6) places on the spring bearing (3) on the base (2); Be screwed rotating shaft (5) in the cylinder of mounting box (7) top, the other end of last rotating shaft (5) passes the fixed orifice (4) on the support (1); In the left side cylinder of mounting box (7), be screwed left horizontal cylinder (9), left horizontal cylinder (9) is 5 with the downward angle of horizontal direction
o, in the right cylinder of mounting box (7), being screwed right horizontal cylinder (8), right horizontal cylinder (8) is 5 with the downward angle of horizontal direction
o, 1 gib screw (10) is respectively installed on the top, both sides of left horizontal cylinder (9) and right horizontal cylinder (8); Bobbin winoler (14) is installed in mounting box (7) inner chamber, and bobbin winoler (14) one ends pass the hole of mounting box (7) back and fix, and the other end is connected with the rotating shaft of the reducing motor (16) of the interior front of mounting box (7); The mid point of backguy (12) is fixed on the bobbin winoler (14); The left and right two ends of backguy (12) respectively with two stainless steel beads (11) on draw ring be connected; Two stainless steel beads (11) place left horizontal cylinder (9) and right horizontal cylinder (8) respectively; Reducing motor (16) is screwed the top, front at mounting box (7) inner chamber; Battery (15) box is screwed the below, back at mounting box (7) inner chamber; Remote control circuit plate (17) is screwed the below, front at mounting box (7) inner chamber, and positive and negative the two poles of the earth of battery (15) are connected with remote control circuit plate (17) positive and negative polarities, and the output terminal of remote control circuit plate (17) is connected with the input end of reducing motor (16).
2. portable corner momentum conservation appearance according to claim 1 is characterized in that: go up rotating shaft (5) and be installed in mounting box (7) outside with lower rotary shaft (6), left horizontal cylinder (9) with right horizontal cylinder (8) and the interior stainless steel bead (11) of tube; Bobbin winoler (14), backguy (12), battery (15), reducing motor (16) and remote control circuit plate (17) are installed in the inner chamber of mounting box (7), and two parts and mounting box (7) are linked to be an integral body, constitute the rotating part of conservation of angular momentum appearance; Telepilot (18) is complementary with remote control circuit plate (17), and remote control reducing motor (16) rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120497513XU CN202352186U (en) | 2011-12-05 | 2011-12-05 | Portable angular momentum conservation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120497513XU CN202352186U (en) | 2011-12-05 | 2011-12-05 | Portable angular momentum conservation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202352186U true CN202352186U (en) | 2012-07-25 |
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ID=46541172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120497513XU Expired - Fee Related CN202352186U (en) | 2011-12-05 | 2011-12-05 | Portable angular momentum conservation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202352186U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938226A (en) * | 2012-11-27 | 2013-02-20 | 上海师范大学 | Comprehensive demonstration instrument for demonstrating angular momentum conservation and rotational inertia and demonstrating method thereof |
| CN107123344A (en) * | 2017-06-07 | 2017-09-01 | 浙江大学城市学院 | A kind of new angular momentum conservation demonstration and quantitative determination experiment instrument |
| RU183308U1 (en) * | 2017-12-28 | 2018-09-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) | A device for studying the law of conservation of the kinetic moment of a mechanical system |
| CN110930831A (en) * | 2019-12-05 | 2020-03-27 | 南开大学 | Angular momentum conservation demonstration instrument based on Hobmann sphere |
-
2011
- 2011-12-05 CN CN201120497513XU patent/CN202352186U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938226A (en) * | 2012-11-27 | 2013-02-20 | 上海师范大学 | Comprehensive demonstration instrument for demonstrating angular momentum conservation and rotational inertia and demonstrating method thereof |
| CN107123344A (en) * | 2017-06-07 | 2017-09-01 | 浙江大学城市学院 | A kind of new angular momentum conservation demonstration and quantitative determination experiment instrument |
| RU183308U1 (en) * | 2017-12-28 | 2018-09-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) | A device for studying the law of conservation of the kinetic moment of a mechanical system |
| CN110930831A (en) * | 2019-12-05 | 2020-03-27 | 南开大学 | Angular momentum conservation demonstration instrument based on Hobmann sphere |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131205 |