CN205247760U - Transmission four -bar linkage teaching aid - Google Patents
Transmission four -bar linkage teaching aid Download PDFInfo
- Publication number
- CN205247760U CN205247760U CN201520889542.9U CN201520889542U CN205247760U CN 205247760 U CN205247760 U CN 205247760U CN 201520889542 U CN201520889542 U CN 201520889542U CN 205247760 U CN205247760 U CN 205247760U
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- worm
- transmission
- gear
- spur gear
- wheel
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Abstract
The utility model provides a transmission four -bar linkage teaching aid, including the bottom plate and mutually the back of the body set up drive mechanism and four -bar linkage on the face of bottom plate both sides, and drive mechanism is connected with the four -bar linkage transmission for for four -bar linkage provides power, four -bar linkage includes: frame, first side link, connecting rod and second side link, the frame sets up on the bottom plate, slider fixed connection is passed through in the frame to the one end of first side link, and the other end is articulated with the one end of connecting rod, and the slider is equipped with and is used for restricting the fastener that the slider removed, the other end of connecting rod is articulated with the one end of second side link, the opening has been seted up to the bottom plate, and the other end of second side link passes through the opening and is connected with drive mechanism. Foretell transmission four -bar linkage teaching aid sets up drive mechanism and four -bar linkage on the face of bottom plate both sides through the back of the body mutually, and drive mechanism provides power for four -bar linkage, and high transmission efficiency, stability can good, long service life.
Description
Technical field
The present invention relates to educational aid field, especially, relate to a kind of transmission four-bar mechanism teaching aid.
Background technology
Model teaching aid has extremely important status in the course of theory of mechanics, it can visual pattern the displaying content of courses, reduce the cognitive difficulty with understanding of student, cause the interest of Students ' Learning, make abstract principle specialize visualize, make mechanical classroom become entertaining, reality, can operate.
But, in existing mechanical teaching aid, only that some typical structures are made into respectively to independently teaching aid, although can intuitively show the principle that it relates to, but function is more single, only can demonstrate the transmission principle of a certain mechanism, in this presentation process, only can see transmission principle, cannot know the movement locus in this mechanism driving process.
Summary of the invention
Based on this, the object of the invention is to provide that a kind of transmission efficiency is high, stability good, the transmission four-bar mechanism teaching aid of long service life, to solve the problems of the technologies described above.
For achieving the above object, the invention provides a kind of transmission four-bar mechanism teaching aid, comprise base plate and opposing transmission mechanism and the four-bar mechanism being arranged on described base plate two sides, and described transmission mechanism and described four-bar mechanism are in transmission connection, be used to described four-bar mechanism that power is provided, described four-bar mechanism comprises: frame, the first side link, connecting rod and the second side link, and described erecting is placed on described base plate; One end of described the first side link is fixedly connected in described frame by slide block, and one end of the other end and described connecting rod is hinged, and described slide block is provided with the fastener moving for limiting described slide block; One end of the other end of described connecting rod and described the second side link is hinged; Described base plate offers port, and the other end of described the second side link is connected with described transmission mechanism by described port.
For example, described transmission mechanism comprises: Worm and worm-wheel gearing, chain-drive mechanism, Spur Gear Driving mechanism and bevel gear transmission; Described Worm and worm-wheel gearing is arranged on described base plate, and the end that imports into of described Worm and worm-wheel gearing is provided with actuating unit, for power is provided; The end that imports into of described chain-drive mechanism is connected with the end that spreads out of of described Worm and worm-wheel gearing, spreads out of to hold with importing into of described Spur Gear Driving mechanism and holds and be connected; The end that spreads out of of described Spur Gear Driving mechanism is held and is connected with importing into of described bevel gear transmission.
For example, described the second side link and described bevel gear transmission import into end hinged.
For example, described actuating unit comprises: motor and belt wheel; Described motor is fixed on described base plate, and described belt wheel is connected by belt with the rotating shaft of described motor.
For example, described belt wheel is provided with rotating shaft.
For example, described Worm and worm-wheel gearing comprises: worm gear, worm screw, worm-wheel bracket, endless screw support;
Described worm gear is meshed with described worm screw, described worm gear is fixed on described base plate by described worm-wheel bracket, described belt wheel is fixedly connected with described worm screw by endless screw support, described worm gear is provided with worm-wheel shaft in its axis direction, and one end of described worm-wheel shaft is fixed on described worm gear on base plate by described endless screw support.
For example, described chain-drive mechanism comprises drive sprocket and driven sprocket, and described drive sprocket is arranged at one end away from described worm gear of described worm-wheel shaft, and described drive sprocket is connected with described driven sprocket by chain.
For example, described Spur Gear Driving mechanism comprises: initiatively spur gear, driven spur gear, spur gear support, described active spur gear is meshed with described driven spur gear, the diameter of described active spur gear is greater than the diameter of described driven spur gear, described active spur gear, described driven spur gear are fixed on described spur gear support by gear shaft respectively, described spur gear support is fixed on described base plate, and described driven sprocket is fixedly connected with described active spur gear by described gear shaft.
For example, described bevel gear transmission comprises drive bevel gear and driven wheel of differential, described drive bevel gear is meshed with described driven wheel of differential, the diameter of described drive bevel gear is greater than the diameter of described driven wheel of differential, described drive bevel gear is connected with described spur gear by described gear shaft, and described driven wheel of differential is connected with described the second side link by described port.
For example, the junction of described the first side link and connecting rod, described connecting rod and described the second side link offers installing hole, and described installing hole is used for installing drawing instrument, to draw the movement locus of described four-bar mechanism.
The present invention has following beneficial effect: transmission four-bar mechanism teaching aid of the present invention, by opposing transmission mechanism and the four-bar mechanism being arranged on base plate two sides, transmission mechanism provides power for four-bar mechanism, and transmission efficiency is high, stability is good, long service life, to make four-bar mechanism under the drive of transmission mechanism, can be used for demonstrating transmission process and the principle of double rocker mechanism, crank and rocker mechanism, double-crank mechanism, slider-crank mechanism, and can demonstrate gear drive, transmission principle with transmission.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage. Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the structural representation of the transmission four-bar mechanism teaching aid of the preferred embodiment of the present invention;
Fig. 2 is the structural representation of the four-bar mechanism of the preferred embodiment of the present invention;
Fig. 3 is the structural representation at another visual angle embodiment illustrated in fig. 1;
Fig. 4 is the double rocker mechanism schematic diagram of the preferred embodiment of the present invention;
Fig. 5 is the crank and rocker mechanism of the preferred embodiment of the present invention;
Fig. 6 is the slider-crank mechanism of the preferred embodiment of the present invention;
Fig. 7 is the double rocker mechanism of the preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can limit and cover according to claim is implemented.
Refer to Fig. 1, transmission four-bar mechanism 300 teaching aids 100 comprise base plate 1 and the opposing transmission mechanism 200 and four-bar mechanism 300 being arranged on base plate 1 two sides.
Transmission mechanism 200 is in transmission connection with four-bar mechanism 300, is used to four-bar mechanism 300 that power is provided.
Refer to Fig. 2, four-bar mechanism 300 comprises: frame 3, the first side link 4, connecting rod 5 and the second side link 6, frame 3 is arranged on base plate 1.
One end of the first side link 4 is fixedly connected in frame 3 by slide block, and one end of the other end and connecting rod 5 is hinged, and slide block is provided with the fastener moving for limiting slide block.
One end of the other end of connecting rod 5 and the second side link 6 is hinged. The other end that base plate 1 offers port 2, the second side links 6 is connected with transmission mechanism 200 by port 2. For example, port 2 is hole.
So, by transmission mechanism 200 and four-bar mechanism 300 on the opposing two sides that are arranged at base plate 1, transmission mechanism 200 provides power for four-bar mechanism 300, and transmission efficiency is high, stability is good, long service life, to make four-bar mechanism 300 under the drive of transmission mechanism 200, can be used for demonstrating transmission process and the principle of double rocker mechanism, crank and rocker mechanism, double-crank mechanism, slider-crank mechanism, and can demonstrate gear drive, transmission principle with transmission.
Refer to Fig. 2, for example, connecting rod 5 comprises: the first interior bar 51, the interior bar 51 of the first loop bar 52, the first, the first loop bar 52 are marked with scale. One end of the first loop bar 52 is articulated with the second side link 6, the other end is provided with the first chute 53 along shaft. The first chute 53 openends are provided with shrinking device 54. One end of the first interior bar 51 is located in the first loop bar 52 by the first chute 53, and the other end of this first interior bar 51 is articulated with the first side link 4.
Preferably, shrinking device 54 is clamp nut; And for example, shrinking device 54 is bolt; And for example, shrinking device 54 is fixture.
For ease of calculating, in one embodiment, the first interior bar 51 can slide along the first chute 53 in the first loop bar 52, can directly read parameter by the scale on the first interior bar 51 and the first loop bar 52, so, by the parameter directly reading, facilitate user to carry out calculating operation.
For example, the second side link 6 comprises: the second interior bar 61, the interior bar 61 of the second loop bar 62, the second, the second loop bar 62 are marked with scale.
For example, one end of the second loop bar 62 is articulated with the first loop bar 51, the other end is provided with the second chute 63 along shaft, the second chute 64 openends are provided with shrinking device 64, one end of the second interior bar 61 is located in the second loop bar 62 by the second chute 63, and the other end of this second interior bar 61 is fixedly connected with the first bevel gear 26 by hole 2.
Preferably, shrinking device 64 is clamp nut; And for example, shrinking device 64 is bolt; And for example, shrinking device 64 is fixture.
For ease of calculating, in one embodiment, the second interior bar 61 can slide along the second chute 64 in the second loop bar 62, can directly read parameter by the scale on the second interior bar 61 and the second loop bar 62, so, by the parameter directly reading, facilitate user to carry out calculating operation.
Preferably, frame 3 is provided with scale, to make, in the time using operation for one, by the scale in frame 3, can directly reading parameter, is convenient to calculate.
For ease of drawing movement locus, so that student understands, for example, the first side link 4 offers installing hole 9 with the junction of connecting rod 5, connecting rod 5 and the second side link 6, for drawing instrument is installed, to draw the movement locus of four-bar mechanism.
For example, installing hole 9 is an aperture. For example, drawing instrument is pencil, so, can draw out easily the movement locus of four-bar mechanism by this pencil.
For ease of adjusting frame, for example, connecting rod 5 and the second side link 6 are capable of regulating rod member; What and for example, frame 3 can be by moving slider 7 changes the length of frame 3 in mechanism. And for example, by the length of regulating connecting rod 5, the second side link 6, frame 3.
So, by adjusting frame, so that observe intuitively the mutual conversion process of double rocker mechanism (Fig. 4), crank and rocker mechanism (Fig. 5), slider-crank mechanism (Fig. 6), double rocker mechanism (Fig. 7).
Referring again to Fig. 1, for example, transmission mechanism 200 comprises: Worm and worm-wheel gearing 210, chain-drive mechanism 220, Spur Gear Driving mechanism 230 and bevel gear transmission 240.
Worm and worm-wheel gearing 210 is arranged on base plate 1, and the end that imports into of Worm and worm-wheel gearing 210 is provided with actuating unit 260. For example, actuating unit 260 is for providing power.
The end that imports into of chain-drive mechanism 220 is connected with the end that spreads out of of Worm and worm-wheel gearing 210, spreads out of end and is connected with the end that imports into of Spur Gear Driving mechanism 230.
The end that spreads out of of Spur Gear Driving mechanism 230 is connected with the end that imports into of bevel gear transmission 240.
As shown in Figure 1, for example, actuating unit 260 comprises: motor 10 and belt wheel 13. For example, motor 10 is fixed on base plate 1, and belt wheel 13 is connected by belt 12 with the rotating shaft of motor 10.
For example, belt wheel 13 is provided with rotating shaft 14.
As shown in Figure 1, for example, Worm and worm-wheel gearing 210 comprises: worm gear 17, worm screw 16, worm-wheel bracket 15, endless screw support 18. Worm gear 17 is meshed with worm screw 16, worm gear 17 is fixed on base plate 1 by worm-wheel bracket 15, belt wheel 13 is fixedly connected with worm screw 16 by endless screw support 18, and worm gear 17 is provided with worm gear 17 axles in its axis direction, and one end of worm gear 17 axles is fixed on worm gear 17 on base plate 1 by endless screw support 18.
As shown in Figure 1, for example, chain-drive mechanism 220 comprises drive sprocket 19 and driven sprocket 20. For example, drive sprocket 19 is arranged at one end away from worm gear 17 of worm gear 17 axles, and drive sprocket 19 is connected with driven sprocket 20 by chain 21.
As shown in Figure 1, for example, Spur Gear Driving mechanism 230 comprises: initiatively spur gear 22, driven spur gear 23, spur gear support 24. For example, initiatively spur gear 22 is meshed with driven spur gear 23. Initiatively the diameter of spur gear 22 is greater than the diameter of driven spur gear 23. Initiatively spur gear 22, driven spur gear 23 are fixed on spur gear support 24 by gear shaft respectively, and spur gear support 24 is fixed on base plate 1, and driven sprocket 20 is fixedly connected with active spur gear 22 by gear shaft.
As shown in Figure 1, for example, bevel gear transmission 240 comprises drive bevel gear 25 and driven wheel of differential 26. For example, drive bevel gear 25 is meshed with driven wheel of differential 26, and the diameter of drive bevel gear 25 is greater than the diameter of driven wheel of differential 26, and drive bevel gear 25 is connected with driven spur gear 23 by gear shaft. Driven wheel of differential 26 is connected with the second side link 6 by port 2.
For making transmission mechanism can drive four-bar mechanism work, please also refer to Fig. 1, Fig. 2 and Fig. 3, base plate 1 offers the other end of port 2, the second side links 6 by port 2 and bevel gear transmission 240. For example, the second side link 6 is held hinged with importing into of bevel gear transmission 240. So, can drive the second side link 6 to work by bevel gear transmission 240.
Operation principle of the present invention is as follows:
In operating process, motor 10 or rotation rotating shaft 14 provide power, by four transmissions such as the Worm Wheel System with transmission, Worm and worm-wheel gearing 210, chain transmission, the Spur Gear Driving of Spur Gear Driving mechanism 230 and the Bevel Gear Transmission of bevel gear transmission 240 of chain-drive mechanism 220 of actuating unit 260, send power to four-bar mechanism 300 afterwards.
Thereby, realized respectively the motion demonstrating of double rocker mechanism (as shown in Figure 4), crank and rocker mechanism (as shown in Figure 5), slider-crank mechanism (as shown in Figure 6), double rocker mechanism (as shown in Figure 7).
And four-bar mechanism 300, in motion process, by the first side link 4 and the drawing tool that the fixed connection place of connecting rod 5, connecting rod 5 and the second side link 6 arranges, is drawn out the movement locus in linkage motion process automatically.
From the above, compared to prior art, transmission four-bar mechanism teaching aid provided by the invention, tool has the following advantages:
One, four-bar mechanism and transmission mechanism are combined, provide one both can demonstrate four-bar mechanism various forms and conversion mutually thereof, can demonstrate again the demonstration teaching aid of multiple mechanical drive principle.
Two, in four-bar mechanism of the present invention, the second side link, connecting rod are capable of regulating rod member, frame can change its length in mechanism by the position of moving slider, the length of the second side link, connecting rod, frame in presentation process, the mutual conversion process that can observe intuitively double rocker mechanism, crank and rocker mechanism, double-crank mechanism, slider-crank mechanism.
Three, the first interior bar, the first loop bar, the second interior bar, the second loop bar and slide rail are marked with scale, can in operating process, directly provide the length parameter of each bar, are convenient to calculate.
Four, between connecting rod and the first cradling piece, second, the junction of bar is equipped with aperture, in aperture, can insert pen, in operating process, can automatically draw rod member movement locus figure, and diverse in function is convenient to teaching.
Five, transmission mechanism of the present invention provides motive power by motor or rotating shaft, drive four-bar mechanism motion by band transmission, Worm Wheel System, chain transmission, Spur Gear Driving and Bevel Gear Transmission, can reproduce intuitively multiple mechanical drive principle, be convenient to student's understanding and understand.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a transmission four-bar mechanism teaching aid, is characterized in that, comprises base plate and opposing transmission mechanism and the four-bar mechanism being arranged on described base plate two sides, and described transmission mechanism and described four-bar mechanism be in transmission connection, and is used to described four-bar mechanism that power is provided,
Described four-bar mechanism comprises: frame, the first side link, connecting rod and the second side link, and described erecting is placed on described base plate;
One end of described the first side link is fixedly connected in described frame by slide block, and one end of the other end and described connecting rod is hinged, and described slide block is provided with the fastener moving for limiting described slide block;
One end of the other end of described connecting rod and described the second side link is hinged;
Described base plate offers port, and the other end of described the second side link is connected with described transmission mechanism by described port.
2. transmission four-bar mechanism teaching aid according to claim 1, is characterized in that, described transmission mechanism comprises: Worm and worm-wheel gearing, chain-drive mechanism, Spur Gear Driving mechanism and bevel gear transmission;
Described Worm and worm-wheel gearing is arranged on described base plate, and the end that imports into of described Worm and worm-wheel gearing is provided with actuating unit, for power is provided;
The end that imports into of described chain-drive mechanism is connected with the end that spreads out of of described Worm and worm-wheel gearing, spreads out of to hold with importing into of described Spur Gear Driving mechanism and holds and be connected;
The end that spreads out of of described Spur Gear Driving mechanism is held and is connected with importing into of described bevel gear transmission.
3. transmission four-bar mechanism teaching aid according to claim 2, is characterized in that, described the second side link and described bevel gear transmission import into end hinged.
4. transmission four-bar mechanism teaching aid according to claim 2, is characterized in that, described actuating unit comprises: motor and belt wheel; Described motor is fixed on described base plate, and described belt wheel is connected by belt with the rotating shaft of described motor.
5. transmission four-bar mechanism teaching aid according to claim 4, is characterized in that, described belt wheel is provided with rotating shaft.
6. transmission four-bar mechanism teaching aid according to claim 5, is characterized in that, described Worm and worm-wheel gearing comprises: worm gear, worm screw, worm-wheel bracket, endless screw support;
Described worm gear is meshed with described worm screw, described worm gear is fixed on described base plate by described worm-wheel bracket, described belt wheel is fixedly connected with described worm screw by endless screw support, described worm gear is provided with worm-wheel shaft in its axis direction, and one end of described worm-wheel shaft is fixed on described worm gear on base plate by described endless screw support.
7. transmission four-bar mechanism teaching aid according to claim 6, is characterized in that, described chain-drive mechanism comprises drive sprocket and driven sprocket,
Described drive sprocket is arranged at one end away from described worm gear of described worm-wheel shaft, and described drive sprocket is connected with described driven sprocket by chain.
8. transmission four-bar mechanism teaching aid according to claim 7, is characterized in that, described Spur Gear Driving mechanism comprises: initiatively spur gear, driven spur gear, spur gear support,
Described active spur gear is meshed with described driven spur gear, the diameter of described active spur gear is greater than the diameter of described driven spur gear, described active spur gear, described driven spur gear are fixed on described spur gear support by gear shaft respectively, described spur gear support is fixed on described base plate, and described driven sprocket is fixedly connected with described active spur gear by described gear shaft.
9. transmission four-bar mechanism teaching aid according to claim 8, is characterized in that, described bevel gear transmission comprises drive bevel gear and driven wheel of differential,
Described drive bevel gear is meshed with described driven wheel of differential, the diameter of described drive bevel gear is greater than the diameter of described driven wheel of differential, described drive bevel gear is connected with described spur gear by described gear shaft, and described driven wheel of differential is connected with described the second side link by described port.
10. transmission four-bar mechanism teaching aid according to claim 1, it is characterized in that, the junction of described the first side link and connecting rod, described connecting rod and described the second side link offers installing hole, and described installing hole is used for installing drawing instrument, to draw the movement locus of described four-bar mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889542.9U CN205247760U (en) | 2015-11-10 | 2015-11-10 | Transmission four -bar linkage teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889542.9U CN205247760U (en) | 2015-11-10 | 2015-11-10 | Transmission four -bar linkage teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205247760U true CN205247760U (en) | 2016-05-18 |
Family
ID=55946842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520889542.9U Expired - Fee Related CN205247760U (en) | 2015-11-10 | 2015-11-10 | Transmission four -bar linkage teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205247760U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261288A (en) * | 2015-11-10 | 2016-01-20 | 吕梁学院 | A transmission four-bar mechanism teaching aid |
| CN109413899A (en) * | 2018-11-06 | 2019-03-01 | 福建超智集团有限公司 | A kind of electric cabinet |
| CN114550552A (en) * | 2022-02-28 | 2022-05-27 | 南京航空航天大学 | Reconfigurable four-bar mechanism teaching model |
-
2015
- 2015-11-10 CN CN201520889542.9U patent/CN205247760U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261288A (en) * | 2015-11-10 | 2016-01-20 | 吕梁学院 | A transmission four-bar mechanism teaching aid |
| CN109413899A (en) * | 2018-11-06 | 2019-03-01 | 福建超智集团有限公司 | A kind of electric cabinet |
| CN109413899B (en) * | 2018-11-06 | 2023-08-25 | 福建超智集团有限公司 | Electric cabinet |
| CN114550552A (en) * | 2022-02-28 | 2022-05-27 | 南京航空航天大学 | Reconfigurable four-bar mechanism teaching model |
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| 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: 20160518 Termination date: 20161110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |