CN210743397U - Mechanical transmission demonstration teaching aid - Google Patents
Mechanical transmission demonstration teaching aid Download PDFInfo
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- CN210743397U CN210743397U CN201921378378.XU CN201921378378U CN210743397U CN 210743397 U CN210743397 U CN 210743397U CN 201921378378 U CN201921378378 U CN 201921378378U CN 210743397 U CN210743397 U CN 210743397U
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- mechanical transmission
- adjusting box
- transmission demonstration
- teaching aid
- lifting
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Abstract
The utility model relates to the field of teaching aids, in particular to a mechanical transmission demonstration teaching aid, which comprises a mechanical transmission demonstration table and an adjusting box, wherein the mechanical transmission demonstration table is connected with the adjusting box and adjusts the height of the mechanical transmission demonstration table; the adjusting box comprises a working cavity provided with a lifting mechanism and a power cavity provided with a power source; the lifting mechanism comprises a lifting rod extending out of the adjusting box and connected with the mechanical transmission demonstration platform, a lifting plate provided with the lifting rod and a plurality of transmission screw rods in threaded connection with the lifting plate and in rotary connection with the adjusting box; one end of the transmission screw rod extends to the power cavity, and the power cavity is provided with a motor for driving the transmission screw rod to rotate. The utility model discloses a mechanical transmission demonstrates teaching aid, mechanical transmission demonstrates platform can be through the regulating box height-adjusting, and it watches to make things convenient for student or mr to supply in the teaching more.
Description
Technical Field
The utility model relates to a teaching aid field, more specifically relates to a mechanical transmission demonstration teaching aid.
Background
Mechanical transmission is widely applied in mechanical engineering, mainly refers to transmission for transmitting power and motion in a mechanical mode, and is divided into two types: the transmission mechanism is driven by the friction force between the parts and the transmission of the driving part and the driven part, or by the middle part.
In the teaching, the mechanical transmission parts can be placed on the display stand for displaying, so that teachers and students can watch conveniently. In some teaching scenarios, too high or too low a mechanical transmission demonstration table affects the viewing of students and teachers.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the unable height-adjusting's of mechanical transmission demonstration platform problem among the above-mentioned prior art, provide a mechanical transmission demonstration teaching aid, can adjust the height of mechanical transmission demonstration platform as required.
In order to solve the technical problem, the utility model discloses a technical scheme is: a mechanical transmission demonstration teaching aid comprises a mechanical transmission demonstration table and an adjusting box which is connected with the mechanical transmission demonstration table and adjusts the height of the mechanical transmission demonstration table; the adjusting box comprises a working cavity provided with a lifting mechanism and a power cavity provided with a power source; the lifting mechanism comprises a lifting rod extending out of the adjusting box and connected with the mechanical transmission demonstration platform, a lifting plate provided with the lifting rod and a plurality of transmission lead screws in threaded connection with the lifting plate and in rotary connection with the adjusting box; one end of the transmission screw rod extends to the power cavity, and the power source is a motor for driving the transmission screw rod to rotate.
When mechanical transmission demonstration platform position was too low, the starter motor for the motor corotation, transmission lead screw rotate and drive the lifter plate at the intracavity rebound of working, install outside the jacking rod on the lifter plate stretches out the regulating box, close the motor after jacking to certain height with mechanical transmission demonstration platform, mechanical transmission demonstration platform can stop at this height. When mechanical transmission demonstration platform position was too high for the motor reversal, transmission lead screw rotated and drove the lifter plate and move down in the work intracavity, and the jacking rod of installing on the lifter plate is withdrawed in the regulating box, and the motor is closed after descending mechanical transmission demonstration platform to certain height, and mechanical transmission demonstration platform can stop at this height.
Preferably, an output shaft of the motor is provided with a driving gear, and the transmission screw rod is provided with a driven gear meshed with the driving gear. The mechanical demonstration platform is heavy in weight, and sufficient torque can be generated through gear transmission to drive the transmission screw rod to drive the lifting plate to move.
Preferably, the inner top wall of the power cavity is fixedly connected with symmetrical fixing plates, and the outer surface of the motor is fixedly connected between the two fixing plates. Through the fixed plate, the motor fixing function is achieved, and the problem that the motor falls off when the motor works is avoided.
Preferably, through holes penetrating to the power cavity are formed in two sides of the adjusting box. The heat that the motor produced can follow the through-hole and distribute to the external world, plays radiating effect, avoids the heat that the motor produced in the work can't get rid of, and the high temperature that produces harms motor itself.
Preferably, symmetrical chutes are formed in the inner side wall of the adjusting box, and sliding blocks matched with the chutes are arranged on the side faces of the lifting plate and are clamped in the chutes. When the lifting plate moves up and down, the sliding block slides in the sliding groove, so that the stable effect is achieved, and the lifting plate can be prevented from being toppled in the moving process.
Preferably, one side of the adjusting box, which is close to the mechanical transmission demonstration table, is provided with an opening through which the jacking rod passes, and the opening and the jacking rod are in interference fit. The aperture of the opening is larger than that of the jacking rod, and the jacking rod can smoothly extend out of or retract into the adjusting box through the opening, so that the frictional resistance is reduced.
Compared with the prior art, the beneficial effects are: the mechanical transmission demonstration teaching aid of the utility model can adjust the height of the mechanical transmission demonstration platform through the adjusting box, thereby being more convenient for students or teachers to watch in the teaching; the working chamber and the power chamber in the regulating box are separated, the heat generated by the power chamber can not enter the working chamber, the softening of parts in the working chamber caused by high temperature is avoided, the service life is shortened, and the weight of the mechanical transmission demonstration table can not be borne easily and the deformation is caused.
Drawings
FIG. 1 is a front view of a mechanical transmission demonstration teaching aid of the present invention;
FIG. 2 is a cross-sectional view of the adjusting box of the present invention;
fig. 3 is a partially enlarged view of a position a in fig. 2.
Wherein: 1. a mechanical transmission demonstration table; 2. an adjusting box; 3. a working chamber; 4. a power cavity; 5. a jacking rod; 6. a lifting plate; 7. a transmission screw rod; 701. a driven gear; 8. a motor; 801. a driving gear; 9. a fixing plate; 10. a through hole; 11. a chute; 12. a slider; 13. and (4) opening.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
examples
Fig. 1-3 show an embodiment of a mechanical transmission demonstration teaching aid, which comprises a mechanical transmission demonstration table 1 and an adjusting box 2, wherein the mechanical transmission demonstration table 1 is connected with the adjusting box 2 and used for adjusting the height of the mechanical transmission demonstration table 1; the adjusting box 2 comprises a working cavity 3 provided with a lifting mechanism and a power cavity 4 provided with a power source; the lifting mechanism comprises a lifting rod 5 extending out of the adjusting box 2 and connected with the mechanical transmission demonstration platform 1, a lifting plate 6 provided with the lifting rod 5 and two transmission screw rods 7 which are in threaded connection with the lifting plate 6 and are in rotary connection with the adjusting box 2; one end of the transmission screw rod 7 extends to the power cavity 4, and the power source is a motor 8 for driving the transmission screw rod 7 to rotate.
Wherein, the symmetrical fixed plate 9 of interior roof fixedly connected with of power chamber 4, the surface fixed connection of motor 8 is between two fixed plates 9, and the inboard and the motor 8 of fixed plate 9 are connected. Through fixed plate 9, played the effect of fixed motor 8, avoided motor 8 the problem that drops to appear in the work. The motor 8 is connected with the two transmission screw rods 7 through gears, a driving gear 801 is installed on an output shaft of the motor 8, and the transmission screw rods 7 are provided with driven gears 701 meshed with the driving gear 801. The mechanical demonstration platform is heavy in weight, and sufficient torque can be generated through gear transmission to drive the transmission screw rod 7 to drive the lifting plate 6 to move. In order to avoid that the heat generated by the motor 8 in the working process cannot be removed and the generated high temperature damages the motor 8, through holes 10 penetrating to the power cavity 4 are arranged on two sides of the adjusting box 2. The heat generated by the motor 8 can be dissipated to the outside from the through hole 10, so that the heat dissipation effect is achieved.
In this embodiment, symmetrical spout 11 has been seted up to the inside wall of regulating box 2, and the side of lifter plate 6 is provided with and spouts 11 complex slider 12, and slider 12 joint is in spout 11. When the lifting plate 6 moves up and down, the sliding block 12 slides in the sliding groove 11, so that the effect of stability is achieved, and the lifting plate 6 can be prevented from falling in the moving process.
In addition, one side of the adjusting box 2 close to the mechanical transmission demonstration table 1 is provided with an opening 13 for the jacking rod 5 to pass through, and the opening 13 and the jacking rod 5 are in interference fit. The aperture of the opening 13 is larger than that of the lifting rod 5, and the lifting rod 5 can smoothly extend out of or retract into the adjusting box 2 through the opening 13, so that the frictional resistance is reduced.
The utility model discloses a theory of operation or work flow: when mechanical transmission demonstration platform 1 position was crossed lowly, starter motor 8 for motor 8 corotation is through gear drive, makes transmission lead screw 7 rotate and drive lifter plate 6 rebound in working chamber 3, installs outside jacking rod 5 on lifter plate 6 stretches out regulating box 2, closes motor 8 after 1 jacking to certain height of mechanical transmission demonstration platform, and mechanical transmission demonstration platform 8 can stop at this height. When the position of the mechanical transmission demonstration table 1 is too high, the motor 8 is rotated reversely, the transmission screw rod 7 rotates and drives the lifting plate 6 to move downwards in the working cavity 3, the jacking rod 5 arranged on the lifting plate 6 is retracted into the adjusting box 2, the motor 8 is closed after the mechanical transmission demonstration table 1 is lowered to a certain height, and the mechanical transmission demonstration table 1 can be stopped at the height.
The beneficial effects of this embodiment: the mechanical transmission demonstration teaching aid of the utility model can adjust the height of the mechanical transmission demonstration platform through the adjusting box, thereby being more convenient for students or teachers to watch in the teaching; the working chamber and the power chamber in the regulating box are separated, the heat generated by the power chamber can not enter the working chamber, the softening of components in the working chamber caused by high temperature is avoided, the service life is shortened, and the weight of the mechanical transmission demonstration table can not be borne easily and the deformation is caused.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. A mechanical transmission demonstration teaching aid comprises a mechanical transmission demonstration table (1) and is characterized by further comprising an adjusting box (2) which is connected with the mechanical transmission demonstration table (1) and adjusts the height of the mechanical transmission demonstration table (1); the adjusting box (2) comprises a working cavity (3) provided with a lifting mechanism and a power cavity (4) provided with a power source; the lifting mechanism comprises a lifting rod (5) which can extend out of the adjusting box (2) and is connected with the mechanical transmission demonstration platform (1), a lifting plate (6) provided with the lifting rod (5) and a plurality of transmission screw rods (7) which are in threaded connection with the lifting plate (6) and are in rotary connection with the adjusting box (2); one end of the transmission screw rod (7) extends to the power cavity (4), and the power source is a motor (8) for driving the transmission screw rod (7) to rotate.
2. A mechanical transmission demonstration teaching aid according to claim 1 wherein the output shaft of the motor (8) is fitted with a driving gear (801) and the transmission screw (7) is provided with a driven gear (701) which meshes with the driving gear (801).
3. A mechanical transmission demonstration teaching aid according to claim 2, wherein the inner top wall of the power chamber (4) is fixedly connected with two symmetrical fixed plates (9), and the motor (8) is fixedly connected between the two fixed plates (9).
4. A mechanical transmission demonstration teaching aid according to claim 1, characterized in that both sides of the adjusting box (2) are provided with through holes (10) that run through to the power cavity (4).
5. A mechanical transmission demonstration teaching aid according to claim 1, wherein the inner side wall of the adjusting box (2) is provided with symmetrical sliding grooves (11), the side surface of the lifting plate (6) is provided with a sliding block (12) matched with the sliding grooves (11), and the sliding block (12) is clamped in the sliding grooves (11).
6. A mechanical transmission demonstration teaching aid according to claim 1, wherein an opening (13) for the jacking rod (5) to pass through is formed in one side, close to the mechanical transmission demonstration table (1), of the adjusting box (2), and the opening (13) and the jacking rod (5) are in interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378378.XU CN210743397U (en) | 2019-08-22 | 2019-08-22 | Mechanical transmission demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921378378.XU CN210743397U (en) | 2019-08-22 | 2019-08-22 | Mechanical transmission demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210743397U true CN210743397U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921378378.XU Active CN210743397U (en) | 2019-08-22 | 2019-08-22 | Mechanical transmission demonstration teaching aid |
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| Country | Link |
|---|---|
| CN (1) | CN210743397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116386442A (en) * | 2023-04-12 | 2023-07-04 | 山东台稳精密机械有限公司 | Linear guide pair demonstration platform |
-
2019
- 2019-08-22 CN CN201921378378.XU patent/CN210743397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116386442A (en) * | 2023-04-12 | 2023-07-04 | 山东台稳精密机械有限公司 | Linear guide pair demonstration platform |
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