CN109731353B - Carbon-free trolley with S-shaped walking track - Google Patents
Carbon-free trolley with S-shaped walking track Download PDFInfo
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- CN109731353B CN109731353B CN201910132985.6A CN201910132985A CN109731353B CN 109731353 B CN109731353 B CN 109731353B CN 201910132985 A CN201910132985 A CN 201910132985A CN 109731353 B CN109731353 B CN 109731353B
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Abstract
The invention discloses a carbon-free trolley with an S-shaped walking track, which comprises a driving mechanism and an automatic steering mechanism, wherein the driving mechanism comprises a fixed pulley support, a lifting rope with a weight is wound on the fixed pulley support, the automatic steering mechanism is arranged between a steering front wheel and the driving mechanism, the driving mechanism comprises a driving gear arranged on a frame bottom plate, one end, far away from the weight, of the lifting rope is wound on a wheel shaft of the driving gear, the driving gear is in transmission fit with a driving rear wheel, the automatic steering mechanism comprises a first driven gear rotationally arranged on the frame bottom plate, the first driven gear is in transmission fit with the driving gear, a special-shaped cam is coaxially arranged with the first driven gear, a guide groove is formed in the outer peripheral surface of the special-shaped cam, the steering front wheel is connected with a guide rod through a wheel carrier, and the end. The steering mechanism has the advantages of simple structure, high transmission efficiency and convenient control of the walking path, and can be conveniently adapted to different walking paths.
Description
Technical Field
The invention relates to the technical field of carbon-free trolleys, in particular to a carbon-free trolley with an S-shaped walking track.
Background
The carbon-free trolley with the S-shaped walking track is a three-wheel trolley which takes 4 joules gravitational potential energy as unique energy and has a continuous obstacle avoidance function, comprises a steering front wheel and two driving rear wheels, and realizes the carbon-free in the real sense. The carbon-free trolley has the advantages of simple integral structure, small friction loss, high efficiency and easy manufacture and installation. The experiment and understanding of students in junior high schools and universities on mechanical knowledge practice can be met, the commercialization is realized, the enthusiasm of teenagers on mechanical structures is stimulated, and the mechanical knowledge learning system can be placed in a science and technology museum to enable masses to know the delicacy and the profound of the mechanical structures.
When the existing carbon-free trolley is used for avoiding obstacles, a swing rod mechanism in transmission fit with a driving shaft is matched with a universal transmission shaft to steer, and the steering mechanism is not only complex in structure, but also difficult to control a walking path. In addition, the competition system of the carbon-free trolley competition is updated every year, and the distance and the form of the arrangement of the obstacles are different. In order to adapt to different racing systems, the structures and the matching forms of the swing rod mechanisms and the universal transmission shafts need to be changed, so that not only is the structural transformation very difficult, but also the walking path is difficult to ensure to meet the requirements.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the carbon-free trolley with the S-shaped walking track, which not only solves the problems that the steering mechanism of the existing carbon-free trolley is complex and the walking path is difficult to control, but also solves the technical problems that the existing carbon-free trolley is difficult to modify and cannot adapt to different walking paths continuously.
The technical scheme of the invention is realized as follows: the carbon-free trolley with the S-shaped walking track comprises a trolley frame bottom plate, wherein two driving rear wheels are arranged at the rear end of the trolley frame bottom plate, a steering front wheel is arranged at the front end of the trolley frame bottom plate, and the steering front wheel is rotatably arranged on the trolley frame bottom plate. The driving rear wheels provide walking power for the carbon-free trolley, and the steering front wheels provide walking direction for the carbon-free trolley. The frame bottom plate top is provided with the actuating mechanism who is connected with the transmission of drive rear wheel, and actuating mechanism includes the fixed pulley support, and the winding has the lifting rope on the fixed pulley support, and the lifting rope is connected with gliding weight from top to bottom, and the weight can slide from top to bottom under the drive of lifting rope. The driving mechanism further comprises a driving gear which is rotatably arranged on the frame bottom plate, one end, far away from the weight, of the lifting rope is wound on a wheel shaft of the driving gear, the weight can slide up and down to drive the wheel shaft of the driving gear to rotate, and then the driving gear is driven to rotate. The driving gear is in transmission fit with the driving rear wheel, so that the weight can drive the driving rear wheel to rotate when sliding up and down, and further the carbon-free trolley is driven to move forward. The automatic steering mechanism is arranged between the front steering wheel and the driving mechanism and comprises a first driven gear which is rotatably arranged on a frame bottom plate, the first driven gear is in transmission fit with the driving gear, and the first driven gear can rotate along with the driving gear. And the special-shaped cam is coaxially arranged with the first driven gear, so that the special-shaped cam can rotate along with the first driven gear. The outer peripheral surface of the special-shaped cam is provided with a guide groove, the steering front wheel is connected with a guide rod through a wheel carrier thread, the end part of the guide rod is inserted in the guide groove, and the guide rod can automatically provide steering for the steering front wheel along with the rotation of the special-shaped cam.
Furthermore, the driving rear wheels comprise a first driving rear wheel and a second driving rear wheel, a first wheel shaft is arranged in cooperation with the first driving rear wheel, and a first shaft seat for mounting the first wheel shaft is arranged on the frame bottom plate. And a second wheel shaft is arranged in a matching way with the second driving rear wheel, and a second shaft seat for mounting the second wheel shaft is arranged on the frame bottom plate. And a second driven gear is arranged on the first wheel shaft or the second wheel shaft, and the driving gear is meshed with the second driven gear. Two drive rear wheels are installed on different wheel axles, and single-wheel drive is adopted, so that differential operation can be realized to the maximum extent, the slipping phenomenon is avoided, and meanwhile, friction between machines is reduced, so that the gravitational potential energy of the weight is converted into kinetic energy to be output as much as possible, and the mechanical transmission efficiency of the carbon-free trolley is greatly improved.
Furthermore, the driving gear comprises a full-tooth driving gear and an incomplete-tooth driving gear, the full-tooth driving gear and the incomplete-tooth driving gear are coaxially arranged, the driving axle of the full-tooth driving gear and the driving axle of the incomplete-tooth driving gear are rotatably arranged on the bottom plate of the frame through a third axle seat, the first driven gear is in transmission fit with the incomplete-tooth driving gear, and the second driven gear is meshed with the full-tooth driving gear. The incomplete tooth driving gear is intermittently meshed with the first driven gear, and when the first driven gear is meshed with the incomplete tooth driving gear, the steering front wheel guides the carbon-free trolley to travel along a path of an S-shaped track; when the first driven gear is meshed with the incomplete tooth driving gear, the turning front wheel can guide the carbon-free trolley to move forwards linearly, and the proportion and the interval between a toothed area and a non-toothed area are reasonably selected by designing the specification of the incomplete tooth driving gear, so that the walking requirements of various expected routes can be met.
Further, including the incomplete tooth drive gear of a plurality of reserve, each reserve incomplete tooth drive gear have tooth interval and no tooth interval length diverse, through setting up the incomplete tooth drive gear of reserve, can satisfy different walking route demands as required more conveniently.
Furthermore, deep groove ball bearings are arranged between the first wheel shaft and the first shaft base, between the second wheel shaft and the second shaft base and between the driving wheel shaft and the third shaft base, mechanical transmission friction can be further reduced due to the arrangement of the deep groove ball bearings, loss of mechanical energy is reduced, and efficient mechanical transmission efficiency is further guaranteed.
Furthermore, the wheel carrier comprises a steering shaft which is rotatably connected with the frame bottom plate, the steering shaft is rotatably arranged at the front end of the frame bottom plate through a bearing, and the guide rod is in threaded connection with the steering shaft. Due to the arrangement of the bearing, the convenience of rotation of the front steering wheel is guaranteed.
Further, the fixed pulley support is including fixed vertical leading truck that sets up on the frame bottom plate, and the cross section of leading truck is greater than 180 arcs for the central angle, the weight slides and sets up in the leading truck, and gliding reliability has been guaranteed about the weight to the shape of leading truck, has avoided the swing of weight. The top of leading truck is provided with the fixed pulley, the lifting rope winding is hoisted the weight on the fixed pulley, and the setting of fixed pulley is convenient for the slip of lifting rope, can make the upper and lower slip of weight more smooth and easy.
Furthermore, a reel is arranged on a wheel shaft of the driving gear, and the reel is in a stepped shaft shape. The one end fixed connection that the weight was kept away from to the lifting rope is on the bobbin, and the convenience when the lifting rope twines can be guaranteed in the setting of bobbin.
Furthermore, the first driven gear is rotatably arranged on the frame bottom plate through the driven wheel shaft, the third shaft seat is arranged on the frame bottom plate, and the deep groove ball bearing is arranged between the driven wheel shaft and the third shaft seat, so that the friction energy consumption of each part of the invention is fully reduced.
Furthermore, the device comprises a plurality of spare special-shaped cams, guide grooves with different shapes are arranged on the peripheral surfaces of the spare special-shaped cams, and the convenience of changing the walking path is further ensured by the arrangement of the spare special-shaped cams.
The steering mechanism has the advantages of simple structure, high transmission efficiency and convenient control of the walking path, and can be conveniently adapted to different walking paths by replacing different incomplete tooth driving gears or special-shaped cams. In addition, the invention also has the following beneficial effects:
1. the stepped design of the bobbin is convenient for providing large torque during starting, and is beneficial to the quick starting of the carbon-free trolley and the stable walking after the starting.
2. The guide rod is in threaded connection with the steering shaft, fine adjustment of the fit of the guide rod and the guide groove can be performed, the guide rod is located at the optimal position in debugging, and the swing angle of the steering front wheel can be effectively controlled.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the transmission portion of FIG. 1;
FIG. 3 is a schematic structural view of the automatic steering mechanism of FIG. 2;
fig. 4 is a schematic structural view of the incomplete tooth drive gear meshing with the first driven gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
And a driving mechanism in transmission connection with the driving rear wheel 2 is arranged above the frame bottom plate 1 and comprises a fixed pulley bracket. The fixed pulley support comprises a vertical guide frame 4 fixedly arranged on the frame bottom plate 1, and the cross section of the guide frame 4 is arc-shaped with a central angle larger than 180 degrees. The top of the guide frame 4 is provided with a fixed pulley 4-1, a lifting rope 4-2 is wound on the fixed pulley 4-1, one end of the lifting rope 4-2 is connected with a weight 4-3, and the weight 4-3 can slide up and down under the driving of the lifting rope 4-2. The weights 4-3 are arranged in the guide frame 4 in a sliding mode, the reliability of the vertical sliding of the weights 4 is guaranteed due to the shape of the guide frame, and the swinging of the weights is avoided.
The driving mechanism further comprises a driving gear which is rotatably arranged on the frame bottom plate 1, one end, far away from the weight 4-3, of the lifting rope 4-2 is wound on a wheel shaft of the driving gear, and the weight 4-3 can slide up and down to drive the wheel shaft of the driving gear to rotate so as to drive the driving gear to rotate. The driving gear is in transmission fit with the driving rear wheel 2, so that the weights 4-3 can drive the driving rear wheel 2 to rotate when sliding up and down, and further drive the carbon-free trolley to move forward.
The driving rear wheels 2 comprise first driving rear wheels 2-1 and second driving rear wheels 2-2, first wheel shafts 2-3 are arranged on the first driving rear wheels 2-1 in a matched mode, and first shaft seats 2-4 for mounting the first wheel shafts 2-3 are arranged on the frame bottom plate 1. A second wheel shaft 2-5 is arranged on the second driving rear wheel 2-2 in a matching way, and a second shaft seat 2-6 for mounting the second wheel shaft 2-5 is arranged on the frame bottom plate 1. And a second driven gear 2-7 is arranged on the second wheel shaft 2-5, and the driving gear is meshed with the second driven gear 2-7. Two drive rear wheels are installed on different wheel axles, and single-wheel drive is adopted, so that differential operation can be realized to the maximum extent, the slipping phenomenon is avoided, and meanwhile, friction between machines is reduced, so that the gravitational potential energy of the weight is converted into kinetic energy to be output as much as possible, and the mechanical transmission efficiency of the carbon-free trolley is greatly improved.
As shown in fig. 2 and 3, an automatic steering mechanism is arranged between the steering front wheel 3 and the driving rear wheel 2, the automatic steering mechanism comprises a first driven gear 5-1 rotatably arranged on the frame bottom plate 1, the first driven gear 5-1 is in transmission fit with the driving gear, and the first driven gear 5-1 can rotate along with the driving gear. The special-shaped cam 5-2 is arranged coaxially with the first driven gear 5-1, so that the special-shaped cam 5-2 can rotate along with the first driven gear 5-1. The outer peripheral surface of the special-shaped cam 5-2 is provided with a guide groove 5-3, the turning front wheel 3 is connected with a guide rod 5-5 through a wheel carrier 5-4 thread, the end part of the guide rod 5-5 is inserted in the guide groove 5-3, and the turning front wheel 3 can be automatically turned along with the rotation of the special-shaped cam 5-2.
As shown in figures 1, 2 and 4, the driving gears comprise a full-tooth driving gear 6-1 and an incomplete-tooth driving gear 6-2, the full-tooth driving gear 6-1 and the incomplete-tooth driving gear 6-2 are coaxially arranged, and the driving wheel shafts 6-3 of the full-tooth driving gear 5-1 and the incomplete-tooth driving gear 6-2 are rotatably arranged on the frame bottom plate 1 through fourth shaft seats 6-4. The first driven gear 5-1 is in transmission fit with the incomplete-tooth driving gear 6-2, and the second driven gear 2-7 is meshed with the full-tooth driving gear. The incomplete tooth driving gear 6-2 is intermittently meshed with the first driven gear 5-1, and when the first driven gear 5-1 is meshed with the incomplete tooth driving gear 6-2, the carbon-free trolley is guided to travel along an S-shaped track by the steering front wheel 3; when the first driven gear 5-1 is not meshed with the incomplete tooth driving gear 6-2, the turning front wheel 3 can guide the carbon-free trolley to move forwards linearly, and the proportion and the interval between the tooth area and the tooth-free area are reasonably selected by designing the specification of the incomplete tooth driving gear 6-2, so that the walking requirements of various expected routes can be met.
The other structure of this embodiment is the same as embodiment 1.
The other structure of this embodiment is the same as embodiment 1 or 2.
The other structure of this embodiment is the same as embodiment 1, 2 or 3.
Embodiment 5, a carbon-free trolley with an S-shaped walking track, wherein a reel 7 is arranged on a wheel shaft of the driving gear, and the reel 7 is in a stepped shaft shape. One end, far away from the weight 4-3, of the lifting rope 4-2 is fixedly connected to the bobbin 7, the bobbin 7 can ensure convenience of winding of the lifting rope, and meanwhile the stepped arrangement can provide large torque for starting of the carbon-free trolley, so that starting is facilitated.
The other structure of this embodiment is the same as that of embodiment 1 or 2 or 3 or 4.
Embodiment 6, a carbon-free trolley with an S-shaped walking track, the first driven gear 5-1 is rotatably disposed on the frame bottom plate 1 through a driven wheel shaft 5-8, the frame bottom plate 1 is provided with a third shaft seat 5-9, and a deep groove ball bearing is disposed between the driven wheel shaft 5-8 and the third shaft seat 5-9, so that friction energy consumption is sufficiently reduced.
Other structures of this embodiment may be the same as those of embodiments 1 to 5.
Other structures of this embodiment may be the same as any of embodiments 1 to 6.
Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a walking orbit is carbon-free dolly of S-shaped, including frame bottom plate (1), the rear end of frame bottom plate (1) is provided with two drive rear wheels (2), the front end is provided with one and turns to front wheel (3), turn to front wheel (3) and rotate and set up on frame bottom plate (1), frame bottom plate (1) top is provided with the actuating mechanism who is connected with drive rear wheel (2) transmission, actuating mechanism includes the fixed pulley support, the winding has lifting rope (4-2) on the fixed pulley support, lifting rope (4-2) are connected with gliding weight (4-3) from top to bottom, it is provided with automatic steering mechanism to turn to between front wheel (3) and the actuating mechanism, its characterized in that: the driving mechanism comprises a driving gear which is rotatably arranged on the frame bottom plate (1), one end of the lifting rope (4-2) far away from the weight (4-3) is wound on a wheel shaft of the driving gear, the driving gear is in transmission fit with the driving rear wheel (2), the automatic steering mechanism comprises a first driven gear (5-1) which is rotatably arranged on a frame bottom plate (1), the first driven gear (5-1) is in transmission fit with a driving gear, a special-shaped cam (5-2) is coaxially arranged with the first driven gear (5-1), a guide groove (5-3) is arranged on the peripheral surface of the special-shaped cam (5-2), the steering front wheel (3) is connected with a guide rod (5-5) through a wheel carrier (5-4), and the end part of the guide rod (5-5) is inserted in the guide groove (5-3);
the rear driving wheels (2) comprise first rear driving wheels (2-1) and second rear driving wheels (2-2), first wheel shafts (2-3) are arranged on the first rear driving wheels (2-1) in a matched mode, first shaft seats (2-4) for mounting the first wheel shafts (2-3) are arranged on the frame bottom plate (1), second wheel shafts (2-5) are arranged on the second rear driving wheels (2-2) in a matched mode, second shaft seats (2-6) for mounting the second wheel shafts (2-5) are arranged on the frame bottom plate (1), second driven gears (2-7) are arranged on the first wheel shafts (2-3) or the second wheel shafts (2-5), and the driving gears are meshed with the second driven gears (2-7);
the driving gear comprises a full-tooth driving gear (6-1) and an incomplete-tooth driving gear (6-2), the full-tooth driving gear (6-1) and the incomplete-tooth driving gear (6-2) are coaxially arranged, a driving wheel shaft (6-3) of the full-tooth driving gear (6-1) and a driving wheel shaft (6-3) of the incomplete-tooth driving gear (6-2) are rotatably arranged on the frame bottom plate (1) through a fourth shaft seat (6-4), the first driven gear (5-1) is in transmission fit with the incomplete-tooth driving gear (6-2), and the second driven gear (2-7) is meshed with the full-tooth driving gear (6-1); the length of the tooth-free interval of each standby incomplete tooth driving gear is different from that of the tooth-free interval of each standby incomplete tooth driving gear.
2. The carbon-free trolley with the S-shaped walking track according to claim 1, wherein the carbon-free trolley comprises: deep groove ball bearings are arranged between the first wheel shaft (2-3) and the first shaft seat (2-4), between the second wheel shaft (2-5) and the second shaft seat (2-6) and between the driving wheel shaft (6-3) and the fourth shaft seat (6-4).
3. The carbon-free trolley with the S-shaped walking track according to claim 1 or 2, wherein the carbon-free trolley comprises: the wheel carrier (5-4) comprises a steering shaft (5-6) rotatably connected with the frame bottom plate (1), the steering shaft (5-6) is rotatably arranged at the front end of the frame bottom plate (1) through a bearing (5-7), and the guide rod (5-5) is in threaded connection with the steering shaft (5-6).
4. The carbon-free trolley with the S-shaped walking track according to claim 2, wherein the carbon-free trolley comprises: the fixed pulley support comprises a vertical guide frame (4) fixedly arranged on a frame bottom plate (1), the cross section of the guide frame (4) is arc-shaped, the central angle of the arc-shaped is larger than 180 degrees, the weights (4-3) are arranged in the guide frame (4) in a sliding mode, the top of the guide frame (4) is provided with the fixed pulley (4-1), and the lifting rope (4-2) is wound on the fixed pulley (4-1) to lift the weights (4-3).
5. The carbon-free trolley with the S-shaped walking track according to any one of claims 1, 2 and 4, wherein the carbon-free trolley comprises: a reel (7) is arranged on a wheel shaft of the driving gear, the reel (7) is in a stepped shaft shape, and one end, far away from the weight (4-3), of the lifting rope (4-2) is fixedly connected to the reel (7).
6. The carbon-free trolley with the S-shaped walking track according to claim 5, wherein the trolley comprises: the first driven gear (5-1) is rotatably arranged on the frame bottom plate (1) through a driven wheel shaft (5-8), a third shaft seat (5-9) is arranged on the frame bottom plate (1), and a deep groove ball bearing is arranged between the driven wheel shaft (5-8) and the third shaft seat (5-9).
7. The carbon-free trolley with the S-shaped walking track according to any one of claims 1, 2, 4 and 6, wherein the carbon-free trolley comprises: the emergency special-shaped cam comprises a plurality of emergency special-shaped cams, and guide grooves with different shapes are arranged on the peripheral surfaces of the emergency special-shaped cams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132985.6A CN109731353B (en) | 2019-02-22 | 2019-02-22 | Carbon-free trolley with S-shaped walking track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132985.6A CN109731353B (en) | 2019-02-22 | 2019-02-22 | Carbon-free trolley with S-shaped walking track |
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| Publication Number | Publication Date |
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| CN109731353A CN109731353A (en) | 2019-05-10 |
| CN109731353B true CN109731353B (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910132985.6A Active CN109731353B (en) | 2019-02-22 | 2019-02-22 | Carbon-free trolley with S-shaped walking track |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111810811B (en) * | 2020-06-22 | 2021-09-28 | 贵州加来众科智能科技有限公司 | Intelligent public culture all-in-one machine |
| CN114432716A (en) * | 2022-01-27 | 2022-05-06 | 张家港江苏科技大学产业技术研究院 | Heat energy trolley |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204447303U (en) * | 2015-01-30 | 2015-07-08 | 三明学院 | A kind of walk the carbon-free trolley of 8-shaped track |
| CN104958909B (en) * | 2015-07-29 | 2017-03-15 | 河北农业大学 | A kind of spherical cam steering mechanism |
| CN207270710U (en) * | 2017-09-27 | 2018-04-27 | 湖北工业大学 | Based on the adjustable walking figure of eight track carbon-free trolley of cylindrical cam mechanism |
| CN207928718U (en) * | 2018-03-02 | 2018-10-02 | 青岛科技大学 | It is a kind of walk 8-shaped carbon-free trolley |
| CN109011625A (en) * | 2018-09-28 | 2018-12-18 | 哈尔滨理工大学 | A kind of " S " type track carbon-free trolley based on cam steering mechanism |
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