CN114299796B - Mechanical transmission stepless speed change science popularization interaction exhibition teaching equipment - Google Patents
Mechanical transmission stepless speed change science popularization interaction exhibition teaching equipment Download PDFInfo
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- CN114299796B CN114299796B CN202210184446.9A CN202210184446A CN114299796B CN 114299796 B CN114299796 B CN 114299796B CN 202210184446 A CN202210184446 A CN 202210184446A CN 114299796 B CN114299796 B CN 114299796B
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- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
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- 230000002457 bidirectional effect Effects 0.000 claims description 12
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- 229910000831 Steel Inorganic materials 0.000 claims description 7
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Abstract
The invention discloses mechanical transmission stepless speed change science popularization interaction teaching equipment which comprises a bin body, a stepless speed change mechanism and a unfolding storage mechanism, wherein the stepless speed change mechanism comprises a lifting table, a rotating rod, a positioning and adjusting system, a cover plate, a connecting arm, a rotating disc, a fixed table, a driving motor, a driving gear and a driven multistage gear, the stepless speed change mechanism and the unfolding storage mechanism are arranged in the bin body, and a power output end of the unfolding storage mechanism is connected with the stepless speed change mechanism and used for lifting the stepless speed change mechanism in the bin body. Compared with the prior art, the stepless speed change mechanism is matched with the structure of the unfolding and containing mechanism, so that the stepless speed change science popularization structure of the unfolding and containing mechanism is placed in the bin body for storage and protection, and can directly carry out speed change demonstration in the bin body according to requirements or automatically unfold the main body structure of the stepless speed change mechanism out of the bin body by utilizing the unfolding and containing mechanism, thereby more intuitively observing the whole flow of stepless speed change operation.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to mechanical transmission stepless speed change science popularization interactive demonstration equipment.
Background
The stepless speed change technology is a transmission technology capable of continuously changing the transmission ratio of an input shaft and an output shaft or the rotation speed of the output shaft, and according to the working principle, stepless speed change transmission can be divided into mechanical, hydraulic, pneumatic and electric, and stepless speed change is one of automatic transmission type gearboxes, and refers to a speed change system capable of continuously obtaining any transmission ratio in a speed change range, and the optimal matching of a transmission system and the working condition of an engine can be obtained through stepless speed change.
When the continuously variable transmission science popularization teaching link is carried out, a special simulation speed changing device is often required to be used for actually exhibiting experiments, so that the science popularization of mechanical transmission is facilitated, the meshing distance of a mechanical transmission structure is often required to be adjusted by the existing continuously variable transmission device, and the speed is changed by utilizing transmission ratios in different states, however, when the meshing distance of the transmission structure is adjusted, the stability of structural meshing is difficult to ensure due to displacement adjustment of the transmission structure, and offset and shaking are easy to generate in the mechanical meshing transmission process, so that a speed changing system of the transmission structure cannot be normally converted, and the quality and efficiency of exhibiting and teaching science popularization are reduced; when demonstration equipment to infinitely variable speed in-service use, because mechanical transmission structure's complexity, equipment often need protect transmission structure through the casing, consequently transmission structure often only can show in the casing, great reduction observer is to infinitely variable speed process's intuitiveness to influence infinitely variable speed's show effect, reduce the flexibility that equipment used.
Disclosure of Invention
The invention aims to: aiming at the problems in the background technology, the invention provides the mechanical transmission stepless speed change science popularization interaction teaching device, which is characterized in that the stepless speed change mechanism is matched with the structure of the unfolding and containing mechanism, so that the stepless speed change science popularization structure of the unfolding and containing mechanism is placed in a bin body for storage and protection, and the speed change demonstration can be directly carried out in the bin body according to the requirements or the main body structure of the unfolding and containing mechanism can be automatically unfolded out of the bin body by utilizing the stepless speed change mechanism, thereby the whole flow of the stepless speed change operation can be observed more intuitively, and the science popularization and the display effect of the mechanical transmission stepless speed change are greatly increased.
The technical scheme is as follows: the invention provides mechanical transmission stepless speed change science popularization interaction exhibition teaching equipment which comprises a bin body, a stepless speed change mechanism and an exhibition storage mechanism, wherein the stepless speed change mechanism and the exhibition storage mechanism are arranged in the bin body, and a power output end of the exhibition storage mechanism is connected with the stepless speed change mechanism and used for lifting the stepless speed change mechanism in the bin body;
the stepless speed change mechanism comprises a lifting table, a rotating rod, a cover plate, a rotating disc, a fixed table, a driving motor, a driving gear and driven multistage gears respectively, wherein a pair of fixed tables are fixedly connected to two sides of the top of the lifting table, the inner sides of the fixed tables are sleeved with the rotating rod, the rotating disc is fixedly connected to two ends of the outer side of the rotating rod, the driven multistage gears are fixedly connected to the middle position of the rotating rod, the driving gear is arranged at the output end of the driving motor, the driven multistage gears are meshed with the driving gear, the driven multistage gears are formed by combining a plurality of groups of fluted discs with different lengths, and the two ends of the lifting table are fixedly connected with the cover plate; the cover plate is also provided with a positioning adjusting component which is used for adjusting the driving gear to be meshed with a plurality of fluted discs in the driven multistage gear respectively;
the unfolding and containing mechanism comprises a power output mechanism and a lifting table lifting mechanism, wherein the output end of the power output mechanism is connected with the lifting table lifting mechanism, and the lifting table lifting mechanism is arranged below the lifting table and used for controlling lifting of the lifting table.
Further, the lifting platform lifting mechanism comprises an internal thread pipe and a screw rod, the power output mechanism comprises a fluted disc, an external tooth ring, an internal tooth ring, a sliding block, an annular sliding groove, a gear and a servo motor, the screw rods are rotationally connected to two sides of the bottom end inside the bin body, the external sides of the pair of screw rods are provided with mutually matched internal thread pipes, and the upper ends of the internal thread pipes are arranged on the lower surface of the lifting platform; the bottom outside a pair of screw rod is equipped with the fluted disc, the edge rigid coupling of the inside bottom of storehouse has annular spout, the inboard symmetry of annular spout is equipped with the slider, two sets of one side rigid coupling that the slider is close to each other has the ring gear, and ring gear and fluted disc intermeshing, the edge rigid coupling at ring gear top has outer ring gear, the bottom rigid coupling of the inside one side of storehouse has servo motor, servo motor's output is equipped with the gear, and gear and ring gear intermeshing.
Further, a bearing is arranged at the middle position of the top of the rubber sucker seat, the rotating shaft is sleeved with the bearing, the two groups of guide grooves are formed by combining guide sliding grooves and guide blocks, and the circular plate is fixedly connected with the guide blocks.
Further, the two sides of the mounting groove are provided with telescopic guide rods, the telescopic guide rods are fixedly connected with the circular plate, the middle position of the top of the circular plate is provided with a hinging seat, and the hinging seat is mutually hinged with the hinged plate.
Further, the positioning adjusting assembly comprises a sealing cap, guide blocks, positioning inserting rods, inclined guide grooves, positioning jacks and fixing columns, wherein the fixing columns are connected to a driving motor, the top of each fixing column is sleeved with the sealing cap, the guide blocks are arranged at the top of the outer side of each fixing column, the inclined guide grooves are formed in the middle position of the cover plate, the positioning inserting rods are fixedly connected to the two sides of the outer side of each sealing cap, and the positioning jacks are symmetrically arranged at the top of the cover plate and close to the two sides of each inclined guide groove; the guide block drives the fixed column is in the internal moving process of oblique guide slot, when the location inserted bar can insert in proper order in the symmetry row and insert in the different location jacks of setting up, a plurality of fluted discs in driving gear and the driven multistage gear mesh respectively.
Further, pulleys are arranged on two sides of the guide block and are in sliding fit with the inclined guide grooves, and the two groups of positioning inserting rods are in proper fit with the positioning inserting holes.
Further, an inclined chute matched with the inclined guide groove is arranged at the middle position of the top of the lifting table, a connecting block in sliding fit is arranged at the inner side of the inclined chute, and the connecting block is fixedly connected with the driving motor.
Further, the lower end of the bin body is also provided with an angle steering mechanism, the angle steering mechanism comprises a mounting groove, a circular plate, a rotating shaft, a rubber sucker seat, a guide groove, an internal thread sleeve block, a hinged plate and a bidirectional screw rod, the mounting groove is fixedly connected to the middle position of the bottom of the inside of the bin body, the bidirectional screw rod is sleeved at one end of the inside of the mounting groove, mutually-matched internal thread sleeve blocks are symmetrically arranged on the outer sides of the bidirectional screw rod, the bottoms of the two groups of internal thread sleeve blocks are hinged with the hinged plate, the bottoms of the two groups of hinged plates are provided with mutually-hinged circular plates, the rotating shaft is fixedly connected to the middle position of the bottom of the circular plate, the rubber sucker seat is sleeved at the bottom of the rotating shaft, and the guide grooves are two groups of guide grooves and the bin body are fixedly connected; a through hole is formed in the middle of one end of the front face of the bin body, and a rocker fixedly connected with the bidirectional screw rod is sleeved on the inner side of the through hole.
Further, the top of the storehouse body both sides, the department that corresponds with the carousel position are equipped with the observation window, the opening has been seted up at the top of the storehouse body, and the mutual adaptation of opening and apron, the intermediate position department of the storehouse body bottom is equipped with the recess, angle steering mechanism is located the recess and settles, the both sides and the internal thread pipe top rigid coupling of elevating platform bottom, the both ends of elevating platform bottom are equipped with flexible pipe, and the both ends rigid coupling of flexible pipe and the inside bottom of storehouse body.
Further, steel balls are uniformly arranged on one far side of the two groups of turntables, hanging rings are arranged on two sides of the bottom of the cover plate, and the hanging rings correspond to the steel balls.
The beneficial effects are that:
1. according to the invention, the stepless speed change mechanism is matched with the structure of the unfolding and containing mechanism, so that the stepless speed change science popularization structure of the unfolding and containing mechanism is placed in the bin body for containing and protecting, and can be directly used for carrying out speed change demonstration in the bin body according to requirements or automatically unfolding the main body structure of the unfolding and containing mechanism out of the bin body by utilizing the stepless speed change mechanism, so that the whole flow of stepless speed change operation can be observed more intuitively, the science popularization and showing effect of mechanical transmission stepless speed change are greatly improved, in addition, the whole structure of the unfolding and containing mechanism is automatically contained conveniently by lifting and matching of the stepless speed change mechanism, the size of the unfolding and teaching equipment can be reduced, the carrying is convenient, and meanwhile, the mechanical transmission structure is well protected safely in the bin body, so that the transmission structure is prevented from being damaged by collision, and the protection and the use flexibility of the equipment are improved.
2. The invention utilizes the structural cooperation of the positioning adjusting component, can adjust and mesh the meshing distance between the driving gear and the driven multistage gear according to the proper insertion and matching of the preset positioning inserted rod and the positioning jack, promotes the adjustment matching rate of the transmission meshing structure to be better, and ensures that the rotating speeds of the driving gear, the driven multistage gear and the rotating rod are more stable through the sliding guide of the guide block and the inclined guide groove and the insertion limit of the positioning inserted rod and the positioning jack, the sliding rate is small, the demonstration work of stepless speed change is more stable and reliable, the structure is simple, the manual adjustment and the use of teaching staff are convenient, and the operation flow and the work difficulty of stepless speed change science popularization are reduced.
3. According to the invention, through the structural cooperation of the angle steering mechanism, the rubber sucker seat can be wholly lowered according to the requirement during demonstration operation, so that the rubber sucker seat is higher than the horizontal plane of the bin body and is adsorbed and positioned with an object, at the moment, the bin body can be freely rotated to drive the stepless speed change mechanism to wholly conduct angle adjustment, an observer can conveniently and rapidly adjust according to the optimal direction of the observer, the observation effect of stepless speed change display of the structure is further improved, and the structure and the stepless speed change mechanism are mutually matched with the lifting structure of the unfolding and containing mechanism, so that the structure and the stepless speed change mechanism can be all folded in the bin body, thereby being convenient for the operator to carry and take the bin body, and improving the use convenience of the unfolding and teaching equipment.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a side cross-sectional view of the present invention;
FIG. 4 is an expanded view of the front view of the present invention;
FIG. 5 is an enlarged view of the invention at A of FIG. 1;
FIG. 6 is an enlarged view of the invention at B of FIG. 2;
FIG. 7 is an enlarged view of FIG. 2 at C in accordance with the present invention;
fig. 8 is a top view of the driving gear and driven multi-stage gear of the present invention.
In the figure: 1. a bin body; 11. an observation window; 2. an angle steering mechanism; 21. a mounting groove; 22. a circular plate; 23. a rotating shaft; 24. a rubber sucker seat; 25. a guide groove; 26. an internal thread sleeve block; 27. a hinged plate; 28. a two-way screw rod; 29. a telescopic guide rod; 210. a rocker; 3. a control panel; 4. a continuously variable transmission mechanism; 41. a lifting table; 42. a rotating rod; 43. a positioning adjustment assembly; 431. a sealing cap; 432. a guide block; 433. positioning the inserted link; 434. an inclined guide groove; 435. positioning the jack; 436. fixing the column; 437. an inclined chute; 438. a connecting block; 44. a cover plate; 45. a connecting arm; 46. a turntable; 47. a fixed table; 48. a driving motor; 49. a drive gear; 410. a driven multistage gear; 5. a deployment-stowing mechanism; 51. an internally threaded tube; 52. a screw; 53. fluted disc; 54. an outer toothed ring; 55. an inner gear ring; 56. a slide block; 57. an annular chute; 58. a gear; 59. a servo motor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the invention discloses a mechanical transmission stepless speed change science popularization interaction exhibition teaching device, which comprises a bin body 1, an angle steering mechanism 2, a control panel 3, a stepless speed change mechanism 4 and an exhibition storage mechanism 5. The stepless speed change mechanism 4 and the unfolding accommodation mechanism 5 are both arranged in the bin body 1, and the power output end of the unfolding accommodation mechanism 5 is connected with the stepless speed change mechanism 4 and used for lifting the stepless speed change mechanism 4 in the bin body 1, and the control panel 3 is used for controlling the unfolding accommodation mechanism 5 to work, controlling the driving motor 48 of the stepless speed change mechanism 4 to work and the like. The angle steering mechanism 2 is used for controlling the whole bin body 1 to lift and rotate for 360 degrees according to the angle steering mechanism 2.
The stepless speed change mechanism 4 comprises a lifting table 41, a rotating rod 42, a positioning adjusting assembly 43, a cover plate 44, a connecting arm 45, a turntable 46, a fixed table 47, a driving motor 48, a driving gear 49 and a driven multistage gear 410, wherein the fixed table 47 is fixedly connected to two sides of the top of the lifting table 41, the rotating rod 42 is sleeved on the inner sides of the two groups of fixed tables 47, the turntable 46 is fixedly connected to two sides of the outer side of the rotating rod 42, the driven multistage gear 410 is fixedly connected to the middle position of the outer side of the rotating rod 42, the driving gear 49 is arranged at the output end of the driving motor 48, the driven multistage gear 410 is meshed with the driving gear 49, the driven multistage gear 410 is formed by combining a plurality of groups of fluted discs with different lengths and radiuses, the connecting arm 45 is fixedly connected to the two ends of the lifting table 41, and the connecting arm 45 is fixedly connected with the cover plate 44. The cover 44 is further provided with a positioning adjusting assembly 43, and the positioning adjusting assembly 43 is used for adjusting the driving gear 49 to be meshed with a plurality of fluted discs in the driven multi-stage gear 410 respectively.
The positioning adjusting component 43 comprises a sealing cap 431, a guide block 432, positioning inserting rods 433, inclined guide grooves 434, positioning inserting holes 435 and fixing columns 436, wherein the fixing columns 436 are fixedly connected with a driving motor 48, the top of each fixing column 436 is sleeved with the sealing cap 431, the guide block 432 is arranged at the top of the outer side of each fixing column 436, the inclined guide grooves 434 are formed in the middle position of the inside of the cover plate 44, the positioning inserting rods 433 are fixedly connected to the two sides of the outer side of the sealing cap 431, and the positioning inserting holes 435 are symmetrically arranged on the two sides of the top of the cover plate 44, which are close to the inclined guide grooves 434. The guide blocks 432 drive the fixing columns 436 to move in the inclined guide grooves 434, and the positioning inserting rods 433 can be sequentially inserted into the symmetrically arranged positioning inserting holes 435 and inserted into different positioning inserting holes 435, so that the plurality of fluted discs in the driving gear 49 and the driven multistage gear 410 are respectively meshed.
The pulleys are arranged on two sides of the guide block 432, the pulleys are in sliding fit with the inclined guide grooves 434, the two sets of positioning inserting rods 433 are in inserting fit with the positioning insertion holes 435, the guide block 432 is enabled to stably move under the cooperation of the pulleys and the inclined guide grooves 434, and the stepless speed change adjusting structure is enabled to be rapidly positioned under the inserting and positioning of the positioning inserting rods 433 and the positioning insertion holes 435.
The middle position at the top of the lifting table 41 is provided with an inclined chute 437, the inner side of the inclined chute 437 is provided with a connecting block 438 in sliding fit, and the connecting block 438 is fixedly connected with the driving motor 48, so that the driving motor 48 is better in moving guidance and stability, the driven multistage gear 410 is formed by combining a plurality of groups of fluted discs with different lengths and radiuses, and therefore stepless speed change work is performed by meshing gears with different diameters of the driven multistage gear 410 with the driving gear 49.
The unfolding and containing mechanism 5 comprises a power output mechanism and a lifting platform lifting mechanism, wherein the output end of the power output mechanism is connected with the lifting platform lifting mechanism, and the lifting platform lifting mechanism is arranged below the lifting platform 41 and used for controlling lifting of the lifting platform 41. The elevating platform elevating system includes internal thread pipe 51, screw rod 52, power take off mechanism includes fluted disc 53, outer tooth ring 54, ring gear 55, slider 56, annular spout 57, gear 58 and servo motor 59, the both sides cover of the inside bottom of storehouse body 1 is equipped with screw rod 52, the outside of two sets of screw rods 52 is equipped with the internal thread pipe 51 of mutually supporting, the bottom in the outside of two sets of screw rods 52 is equipped with fluted disc 53, the edge rigid coupling of the inside bottom of storehouse body 1 has annular spout 57, the inboard symmetry of annular spout 57 is equipped with slider 56, the one side rigid coupling that two sets of sliders 56 are close to each other has ring gear 55, and ring gear 55 and the intermeshing of fluted disc 53, the edge rigid coupling at ring gear 55 top has outer tooth ring 54, the bottom rigid coupling of the inside one side of storehouse body 1 has servo motor 59, the output of servo motor 59 is equipped with gear 58, and gear 58 and ring gear 54 intermesh.
The top of servo motor 59 is equipped with the connection platform, and the top of connection platform is equipped with the battery, improves the stability of part installation, is convenient for concentrate the battery with the electric energy, and convenient follow-up is supplied power, easily carries, and the bottom of two sets of screw rods 52 is equipped with the bearing frame, and bearing frame and the rigid coupling of storehouse body 1, and the connection cooperation of accessible bearing frame makes screw rod 52 obtain rotatoryly.
The angle steering mechanism 2 comprises a mounting groove 21, a circular plate 22, a rotating shaft 23, a rubber suction cup seat 24, a guide groove 25, an internal thread sleeve block 26, a hinged plate 27 and a bidirectional screw rod 28, wherein the mounting groove 21 is fixedly connected to the middle position of the bottom inside the bin body 1, one end inside the mounting groove 21 is sleeved with the bidirectional screw rod 28, the external sides of the bidirectional screw rod 28 are symmetrically provided with the internal thread sleeve blocks 26 which are mutually matched, the bottoms of the two groups of internal thread sleeve blocks 26 are hinged with the hinged plate 27, the bottoms of the two groups of hinged plates 27 are provided with the circular plate 22 which is mutually hinged, the rotating shaft 23 is fixedly connected to the middle position of the bottom of the circular plate 22, the rubber suction cup seat 24 is fixedly connected to the bottom of the rotating shaft 23, the guide groove 25 is two groups, and the two groups of guide grooves 25 are fixedly connected with the bin body 1.
The middle position at the top of the rubber sucker seat 24 is provided with a bearing, the rotating shaft 23 is connected with a bearing sleeve, the two groups of guide grooves 25 are formed by combining guide sliding grooves and guide blocks, and the circular plate 22 is fixedly connected with the guide blocks.
The telescopic guide rods are arranged on two sides of the mounting groove 21 and fixedly connected with the circular plate 22, so that the lifting guidance of the circular plate 22 is improved, the hinging seat is arranged in the middle of the top of the circular plate 22 and hinged with the hinged plates 27, and the structure can be lifted through the movable fit of the hinging seat and the two groups of hinged plates 27.
The bin body 1 of above-mentioned structure comprises cylindric structure, the top of bin body 1 both sides is equipped with observation window 11, and observation window 11 corresponds with carousel 46 position, can make infinitely variable speed structure carry out simulation experiment and survey in the device, bin body 1's both ends symmetry is equipped with the handle, the through-hole has been seted up to bin body 1 front one end's intermediate position department, and the inboard cover of through-hole is equipped with the rocker 210 with two-way lead screw 28 rigid coupling, be convenient for rotatory rocker 210 drives two-way lead screw 28 and rotate, the through-hole has been seted up at bin body 1's top, and the through-hole is mutually adapted with apron 44, bin body 1 bottom intermediate position department is equipped with the recess, angle steering mechanism 2 is located the recess and settles, elevating platform 41 bottom both sides and internal thread pipe 51 top rigid coupling, elevating platform 41 bottom's both ends are equipped with flexible pipe, and flexible pipe and bin body 1 inside bottom's both ends rigid coupling.
The steel balls are uniformly arranged on one side of the two groups of turntables 46, which are far away from each other, and the hanging rings are arranged on two sides of the bottom of the cover plate 44, and correspond to the steel balls, so that the steel balls rotating the turntables 46 can be provided by the hanging rings to form a reference object system, the stepless speed change process of the turntables 46 can be perceived by observers more easily, and the stepless speed change popular science effect is improved.
As shown in fig. 1-4, when the device is in use, the rocker 210 can be manually rotated, and then the bidirectional screw rod 28 is rotated to force the two groups of internal thread sleeve blocks 26 to move close to each other, so that the internal thread sleeve blocks 26 drive the hinged plate 27 and the circular plate 22 to move downwards, limit movement can be performed in the guide groove 25 along with the descending of the circular plate 22, the circular plate 22 is driven to drive the rotating shaft 23 and the rubber suction cup seat 24 to be unfolded out of the bin body 1, so that the rubber suction cup seat 24 and a tabletop object and the like are attracted and positioned, and at the moment, the bin body 1 can be directly pulled to move in a ring shape under the rotation cooperation of the rotating shaft 23 and the rubber suction cup seat 24, and the angle of the stepless speed change structure can be quickly adjusted according to the requirements of observers, so that the observers can observe conveniently.
As shown in fig. 5 and 7, when an operator slides the fixing post 436, the sealing cap 431 and the positioning inserting rod 433 of the positioning structure can be pulled out of the positioning insertion hole 435, and at this time, the fixing post 436 can be pulled to drive the guide block 432 to slide in the inclined guide groove 434, so as to drive the driving motor 48 and the driving gear 49 to perform position adjustment, and after the designated position is adjusted, the sealing cap 431 can be again inserted into the prefabricated positioning insertion hole 435 to perform inserting and positioning, so that the adjustment stability of the driving motor 48 and the driving gear 49 is ensured, and the operation stability of the continuously variable transmission mechanism is improved.
Working principle: when the device is used, the servo motor 59 can be started through the control panel 3, the gear 58 is driven to rotate by the starting of the servo motor 59 and meshed with the outer gear ring 54, the connected inner gear ring 55 can be driven to rotate under the guiding cooperation of the sliding block 56 and the annular sliding groove 57 along with the meshed rotation of the outer gear ring 54, then the inner gear ring 55 drives the two sets of meshed fluted discs 53 to force the two sets of threaded rods 52 to rotate, at the moment, the two sets of internally threaded pipes 51 can be driven to ascend under the rotation of the threaded rods 52, and then the lifting table 41, the connecting arm 45 and the cover plate 44 are integrally and integrally pushed out of the bin body 1 through the internally threaded pipes 51, so that the continuously variable transmission mechanism 4 is completely unfolded.
Secondly, when the main structure of the stepless speed change mechanism 4 is unfolded outside the bin body 1, the driving gear 49 and the driven multistage gear 410 can be driven by the starting of the driving motor 48 to be meshed with each other, the driven multistage gear 410 is forced to drive the rotating rod 42 and the rotating disc 46 to rotate, when stepless speed change demonstration is required, the fixing column 436 can be manually pulled to drive the guide block 432 to slide and move in the inclined guide groove 434, the fixing column 436 is driven to drive the driving motor 48 and the driving gear 49 to move in a chord cut surface, the meshing distance between the driving gear 49 and the driven multistage gear 410 is further adjusted, and at the moment, the driving gear 49 and the driven multistage gears 410 with different diameters can be used for adjusting and converting, so that the rotating speed of the rotating disc 46 is changed, the stepless speed change process is simulated, and the display and science popularization are carried out.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and that the simple modification and equivalent substitution of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. The mechanical transmission stepless speed change science popularization interaction exhibition teaching equipment is characterized by comprising a bin body (1), a stepless speed change mechanism (4) and an unfolding storage mechanism (5), wherein the stepless speed change mechanism (4) and the unfolding storage mechanism (5) are arranged in the bin body (1), and a power output end of the unfolding storage mechanism (5) is connected with the stepless speed change mechanism (4) and used for lifting the stepless speed change mechanism (4) in the bin body (1);
the stepless speed change mechanism (4) comprises a lifting table (41), a rotating rod (42), a cover plate (44), a rotating disc (46), a fixed table (47), a driving motor (48), a driving gear (49) and a driven multistage gear (410), wherein a pair of fixed tables (47) are fixedly connected to two sides of the top of the lifting table (41), the rotating rod (42) is sleeved on the inner side of each fixed table (47), the rotating disc (46) is fixedly connected to two ends of the outer side of each rotating rod (42), the driven multistage gear (410) is fixedly connected to the middle position of each rotating rod (42), the driving gear (49) is arranged at the output end of the driving motor (48), the driven multistage gear (410) is meshed with the driving gear (49), the driven multistage gear (410) is formed by combining a plurality of fluted discs with different radiuses, and two ends of the lifting table (41) are fixedly connected with the cover plate (44). The cover plate (44) is also provided with a positioning adjusting assembly (43), and the positioning adjusting assembly (43) is used for adjusting the driving gear (49) to be meshed with a plurality of fluted discs in the driven multistage gear (410) respectively;
the positioning adjusting assembly (43) comprises a sealing cap (431), a guide block (432), a positioning inserting rod (433), inclined guide grooves (434), positioning inserting holes (435) and fixing columns (436), wherein the fixing columns (436) are connected to a driving motor (48), the top of each fixing column (436) is sleeved with the sealing cap (431), the guide block (432) is arranged at the top of the outer side of the fixing column, the inclined guide grooves (434) are formed in the middle position of the cover plate (44), the positioning inserting rods (433) are fixedly connected to the two sides of the outer side of the sealing cap (431), and the positioning inserting holes (435) are symmetrically arranged on the two sides, close to the inclined guide grooves (434), of the top of the cover plate (44); the guide blocks (432) drive the fixed columns (436) to move in the inclined guide grooves (434), and the positioning inserting rods (433) can be sequentially inserted into symmetrically arranged positioning inserting holes (435) and are inserted into different positioning inserting holes (435), so that a plurality of fluted discs in the driving gear (49) and the driven multistage gear (410) are respectively meshed;
pulleys are arranged on two sides of the guide block (432), the pulleys are in sliding fit with the inclined guide grooves (434), and two groups of positioning inserting rods (433) are in inserting fit with the positioning inserting holes (435);
an inclined chute (437) matched with the inclined guide groove (434) is arranged at the middle position of the top of the lifting table (41), a connecting block (438) in sliding fit is arranged at the inner side of the inclined chute (437), and the connecting block (438) is fixedly connected with a driving motor (48);
the unfolding and containing mechanism (5) comprises a power output mechanism and a lifting table lifting mechanism, wherein the output end of the power output mechanism is connected with the lifting table lifting mechanism, and the lifting table lifting mechanism is arranged below the lifting table (41) and used for controlling lifting of the lifting table (41).
2. The mechanical transmission stepless speed change science popularization interaction teaching device according to claim 1, wherein the lifting table lifting mechanism comprises an internal thread pipe (51) and a screw rod (52), the power output mechanism comprises a fluted disc (53), an external tooth ring (54), an internal tooth ring (55), a sliding block (56), an annular sliding groove (57), a gear (58) and a servo motor (59), the screw rod (52) is rotatably connected to two sides of the inner bottom end of the bin body (1), the mutually-matched internal thread pipes (51) are arranged on the outer sides of the pair of screw rods (52), and the upper ends of the internal thread pipes (51) are arranged on the lower surface of the lifting table (41); the bottom outside a pair of screw rod (52) is equipped with fluted disc (53), the edge rigid coupling of the inboard bottom of storehouse body (1) has annular spout (57), the inboard symmetry of annular spout (57) is equipped with slider (56), two sets of one side rigid coupling that slider (56) are close to each other has ring gear (55), and ring gear (55) and fluted disc (53) intermeshing, the edge rigid coupling at ring gear (55) top has outer ring gear (54), the bottom rigid coupling of the inside one side of storehouse body (1) has servo motor (59), the output of servo motor (59) is equipped with gear (58), and gear (58) and ring gear (54) intermeshing.
3. The mechanical transmission stepless speed change science popularization interaction teaching device according to claim 1, wherein the lower end of the bin body is further provided with an angle steering mechanism (2), the angle steering mechanism (2) comprises a mounting groove (21), a circular plate (22), a rotating shaft (23), a rubber sucker seat (24), a guide groove (25), an internal thread sleeve block (26), a hinged plate (27) and a bidirectional screw rod (28), the mounting groove (21) is fixedly connected to the middle position of the bottom inside the bin body (1), one end inside the mounting groove (21) is sleeved with the bidirectional screw rod (28), the external side of the bidirectional screw rod (28) is symmetrically provided with the internal thread sleeve block (26) which is mutually matched, the bottoms of the two groups of the internal thread sleeve blocks (26) are hinged with the hinged plate (27), the bottoms of the two groups of the hinged plate (27) are provided with the circular plate (22) which are mutually hinged, the middle position of the bottom of the circular plate (22) is fixedly connected with the rotating shaft (23), the bottom of the rotating shaft (23) is sleeved with the rubber sucker seat (24), the guide groove (25) is fixedly connected with the two groups of the guide groove (25), and the two groups of guide grooves (25) are fixedly connected with the bin body (1); a through hole is formed in the middle of one end of the front face of the bin body (1), and a rocker (210) fixedly connected with the bidirectional screw rod (28) is sleeved on the inner side of the through hole.
4. The mechanical transmission stepless speed change science popularization interactive teaching device according to claim 3, wherein a bearing is arranged at the middle position of the top of the rubber sucker seat (24), the rotating shaft (23) is sleeved with the bearing, the two groups of guide grooves (25) are formed by combining guide sliding grooves and guide blocks, and the circular plate (22) is fixedly connected with the guide blocks.
5. The mechanical transmission stepless speed change science popularization interaction teaching device according to claim 3, wherein telescopic guide rods (29) are arranged on two sides of the mounting groove (21), the telescopic guide rods (29) are fixedly connected with the circular plate (22), a hinging seat is arranged in the middle of the top of the circular plate (22), and the hinging seat is mutually hinged with the hinging plate (27).
6. The mechanical transmission stepless speed change science popularization interactive teaching device according to any one of claims 1 to 5, wherein the tops of the two sides of the bin body (1) and the positions corresponding to the rotary table (46) are provided with observation windows (11).
7. The mechanical transmission stepless speed change science popularization interactive teaching device according to any one of claims 1 to 5, wherein steel balls are uniformly arranged on one far side of the two groups of turntables (46), hanging rings are arranged on two sides of the bottom of the cover plate (44), and the hanging rings correspond to the steel balls.
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Application publication date: 20220408 Assignee: Huaian Shengyi Machinery Co.,Ltd. Assignor: HUAIYIN INSTITUTE OF TECHNOLOGY Contract record no.: X2024980017881 Denomination of invention: A mechanical transmission continuously variable transmission science popularization interactive exhibition and teaching equipment Granted publication date: 20231201 License type: Common License Record date: 20241010 |